JP2008292140A - refrigerator - Google Patents

Abstract

A refrigerator capable of efficiently recovering transpiration moisture from stored food and sufficiently humidifying the inside of the storage container is provided.
On a cold air flow path between a vegetable room discharge port 45 that is a cold air discharge port through which cold air flows from the outside of the vegetable room 24 and a vegetable room suction port 46 that discharges the cold air to the outside of the vegetable room 24. By arranging the mist spraying means 67 further downstream of the container, the cold air in the storage container provided in the vegetable compartment 24 is pulled, and the high-humidity cold air leaks out into the cold air distribution path, thereby storing Humidity leaking from the inside of the container can be efficiently recovered and condensed on the mist spraying means 67, and this condensed water can be changed to a fine mist and the highly diffusible fine mist can be returned to the storage container again. .
[Selection] Figure 1

Description

  The present invention relates to a refrigerator provided with a storage room maintained at high humidity.

  Factors that affect the decline in freshness of vegetables include temperature, humidity, environmental gas, microorganisms, and light. Vegetables are living creatures that are breathing and transpiration, and in order to maintain freshness, it is necessary to suppress respiration and transpiration. Except for some vegetables, such as those that cause chilling disorders, respiration is suppressed at low temperatures, and transpiration can be prevented by high humidity. In recent years, refrigerators for home use have been designed to preserve vegetables, and are equipped with sealed vegetable containers that are controlled to cool vegetables to an appropriate temperature and to increase the humidity in the cabinet to suppress transpiration of vegetables. There is something. In addition, as a means for increasing the humidity in the cabinet, there is also a means that uses a means for spraying mist.

  Conventionally, as a refrigerator equipped with this type of mist spraying function, there is a refrigerator that suppresses the transpiration of vegetables by vibrating a hygroscopic material with an ultrasonic oscillator to generate and spray mist to humidify the vegetable compartment (for example, Patent Document 1).

  10 and 11 show a conventional refrigerator described in Patent Document 1. FIG.

  As shown in FIG. 10, the refrigerator main body 1 is provided with a refrigerating chamber 2, and the front opening is closed by a rotary door 3. The vegetable compartment 4 is provided below the refrigerator compartment 2, and its front opening is closed by a drawer door 5. A freezer compartment 6 is provided below the vegetable compartment 4, and the front opening is closed by a drawer door 7. The refrigerator compartment 2 and the vegetable compartment 4 are partitioned by a partition plate 8. The partition plate 8 is provided with a hole 9 for allowing cold air to flow from the refrigerator compartment 2 into the vegetable compartment 4. A vegetable container 10 is attached to the drawer door 5 and is pulled out as the drawer door 5 is opened and closed. A vegetable container lid 11 is disposed on the vegetable container 10 and closes the vegetable container 10 when the drawer door 5 is closed. At this time, the vegetable container lid 11 is fixed to the refrigerator main body side. The vegetable container lid 11 is provided with ultrasonic humidification means 12 to evaporate moisture inside the vegetable container 10. The refrigerator compartment 2 is provided with a cooler 13 for the refrigerator compartment, and cools the refrigerator compartment 2 and the vegetable compartment 4 by circulating cold air by operating the fan 14. Although not shown, this refrigerator also includes a cooler for a freezing temperature zone and cools the freezing chamber 6.

  As shown in FIG. 11, the ultrasonic humidifying means 12 is provided in the hole 15 of the vegetable container lid 11 and includes a water absorbing material 16 and an ultrasonic oscillator 17.

  The operation of the refrigerator configured as described above will be described below.

  When the temperature of the refrigerator compartment 2 or the vegetable compartment 4 becomes high, the refrigerant flows through the cooler 13 and the fan 14 is driven. As a result, the cool air around the cooler 13 returns to the cooler 13 through the refrigerator compartment 2, the hole 9, and the vegetable compartment 4, as indicated by arrows in FIG. Thereby, the refrigerator compartment 2 and the vegetable compartment 4 are cooled. This state is called a cooling mode.

  Next, when the refrigerator compartment 2 and the vegetable compartment 4 are substantially cooled, the supply of the refrigerant to the cooler 13 is stopped. However, the fan 14 continues to operate. Thereby, the refrigerator compartment 2 and the vegetable compartment 4 are humidified by melt | dissolution of the frost adhering to the cooler 13. FIG. This state is referred to as a humidification mode (so-called “humidity operation”).

  After the humidification mode is continued for a predetermined time (several minutes), the fan 14 is stopped and the operation stop mode is set.

  After this, when the temperature of the refrigerator compartment 2 or the vegetable compartment 4 is increased, the cooling mode is entered again.

  Next, the ultrasonic humidifying means 12 will be described.

The water absorbing material 16 is made of a water absorbing material such as silica gel, zeolite, or activated carbon. Therefore, moisture in the flowing air is adsorbed in the humidification mode described above. Then, in the latter half of the cooling mode, the ultrasonic oscillator 17 is driven. Thereby, the water | moisture content in the water absorbing material 16 is discharged | emitted outside. Thereby, the inside of the vegetable container 10 is humidified. In the latter half of the cooling mode, the purpose of driving the ultrasonic oscillator 17 is to prevent drying of the vegetable compartment 4 due to a decrease in humidity.
JP 2004-125179 A

  In the above-described conventional configuration, the vegetable container 10 is closed at the upper surface by the vegetable container lid 11, and even if cold air containing moisture circulates in the vegetable compartment 4 during the humidification mode (during wet operation), the vegetable container 10 It is difficult to directly humidify the inside of the container 10. In the conventional configuration, the moisture in the air in the refrigerator compartment 2 and the moisture in the space other than the storage container 10 in the vegetable compartment 4 are used as the water supply source to the ultrasonic oscillator 17. Most of the moisture in the space is derived from warm moisture that flows into the cabinet by opening and closing the door, and the amount of moisture is less than in the storage container 10 in which vegetables containing a lot of moisture are stored. Sufficient humidification is not always possible.

  This invention solves the said conventional subject, and it aims at providing the refrigerator which can fully humidify.

  In order to solve the above-described conventional problems, a refrigerator according to the present invention includes a refrigerator body including a storage chamber, a door that closes a front opening of the storage chamber, and a cooler that generates cool air for cooling the storage chamber. A cooling air outlet, a cool air discharge port for discharging the cold air of the cooling chamber into the storage chamber, and a cold air suction port for returning the cool air that has cooled the storage chamber to the cooling chamber, the cold air discharge port and the A mist spraying means is disposed on the cold air flow path between the cold air inlet and the mist spraying means condenses moisture in the air and sprays it as a mist in the storage chamber. As a result, the cool air flow path in which the cool air flowing into the storage chamber from the cool air discharge port flows out of the storage chamber through the cool air suction port has a relatively fast flow rate of cool air, pulling the cool air in the storage container, Leaks into the cold air flow path, so that moisture leaking from the storage container can be efficiently recovered and condensed in the mist spraying means. High fine mist can be returned to the storage container again.

  The refrigerator of this invention can fully humidify the inside of a storage container with fine mist, and can maintain the freshness of vegetables.

  According to the first aspect of the present invention, the refrigerator main body has a storage chamber, a door that closes the front opening of the storage chamber, a cooling chamber that includes a cooler that generates cool air for cooling the storage chamber, and the cooling A cool air discharge port for discharging the cool air of the chamber into the storage chamber, and a cool air suction port for returning the cool air that has cooled the storage chamber to the cooling chamber, between the cool air discharge port and the cool air suction port Mist spraying means is disposed on the cold air flow path, and the mist spraying means condenses moisture in the air and sprays it in the storage chamber as mist.

  As a result, the flow of cool air flowing from the cool air discharge port into the storage chamber through the cool air suction port to the outside of the storage chamber has a large amount of cool air flowing. As the inside air is pulled and the high humidity cold air leaks out on the cold air flow path, the moisture leaking from the inside of the storage container can be efficiently recovered and condensed on the mist spraying means. Can be returned to the container again, and the container can be sufficiently humidified with the fine mist to maintain the freshness of the vegetables.

  According to a second aspect of the present invention, in addition to the first aspect of the invention, in the storage chamber provided with the mist spraying means, the mist spraying means is on the center line in the vertical direction of the storage chamber or in the vertical direction of the storage chamber. It is arranged above the center line.

  As a result, the cold air can take advantage of the characteristic of flowing downward, and the fine mist generated by the mist spraying device from the upper side can be put on the flow of cold air flowing through the storage chamber, and the fine mist flows into the cold air flowing through the storage chamber. By containing more, the inside of a storage container can fully be humidified with fine mist, and the freshness of vegetables can be maintained.

  According to a third aspect of the present invention, in addition to the first or second aspect of the invention, in the storage chamber provided with the mist spraying means, the mist spraying means is closer to the cold air inlet than the center in the left-right direction of the storage chamber. Is arranged.

  Thereby, by disposing the mist spraying device on the cold air inlet side where the humidity becomes higher in the left-right direction, moisture contained in the cold air can be efficiently collected and condensed on the mist spraying means. The inside can be sufficiently humidified with a fine mist to maintain the freshness of the vegetables.

  In addition to the invention described in any one of claims 1 to 3, the invention described in claim 4 uses an ultrasonic method for the mist spraying means, and a fine mist having a particle diameter of several μm is used. Since it can generate | occur | produce and can respond also to a large amount of spraying, the inside of a storage container can fully be humidified with fine mist, and the freshness of vegetables can be maintained.

  The invention according to claim 5 is the invention according to any one of claims 1 to 3, wherein the mist spraying means uses an electrostatic atomization system, and has a particle diameter of several nm to several μm. Fine mist can be generated, and since the sprayed mist has a negative charge, the adhesion rate to vegetables and the like can be further improved, and the freshness of vegetables can be maintained.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the embodiments described above, and detailed descriptions thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view of the refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a longitudinal sectional view of the refrigerator in the same embodiment.

  1 and 2, the refrigerator main body 1 is composed of an outer box 18 and an inner box 19, and the inside is filled with a foam heat insulating material 20 such as hard foam urethane and insulated from the surroundings, and is divided into a plurality of storage rooms. Has been. A refrigeration room 21 as a first storage room is provided at the top, and a switching room 22 as a fourth storage room and an ice making room 23 as a fifth storage room are provided side by side at the lower part of the refrigeration room 21. A vegetable room 24 as a second storage room is disposed below the chamber 22 and the ice making room 23, and a freezer room 25 as a third storage room is disposed at the bottom.

  The refrigerator compartment 21 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it is not frozen for refrigerated storage. In addition, the vegetable room 24 is often set to 2 ° C. to 7 ° C. which is the same as or slightly higher than the refrigerated room 21. The lower the temperature, the longer the freshness of the leafy vegetables can be maintained. The freezer compartment 25 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or −25 ° C. to improve the frozen storage state. It may be set at a low temperature.

  The switching chamber 22 is from a refrigeration temperature zone, in addition to refrigeration set at 1 ° C. to 5 ° C., vegetables set at 2 ° C. to 7 ° C., and freezing temperature zones normally set at −22 ° C. to −15 ° C. It is possible to switch to a preset temperature zone between the freezing temperature zones. For example, temperature between refrigeration and freezing such as soft freezing (approximately -12 ° C to -6 ° C), partial freezing (approximately -5 ° C to -1 ° C), chilled (approximately -1 ° C to 1 ° C) It is a belt. The switching chamber 22 is a storage chamber provided with an independent door arranged in parallel with the ice making chamber 23, and is often provided with a drawer-type door.

  In the present embodiment, the switching room 22 is a storage room including the refrigeration and freezing temperature zones. However, the refrigeration is performed in the refrigeration room 21, the vegetable room 24, and the freezing is performed in the freezing room 25. Of course, the storage room may be specialized for switching only the above temperature range.

  The ice making chamber 23 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 21, and an ice storage container ( (Not shown) is a storage room that is a storage room provided with an independent door with a small frontage provided in parallel with the switching room 22, and often has a drawer-type door.

  The top surface portion of the refrigerator main body 1 has a stepped recess shape toward the back side of the refrigerator. A machine chamber 26 is formed in the stepped recess portion to form a compressor 27 and a dryer for removing moisture (not shown). The components on the high pressure side of the refrigeration cycle are stored. That is, the machine room 26 in which the compressor 27 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 21. A refrigerator main body that is easy to use by a conventional refrigerator by providing a machine room 26 in the rear region of the uppermost storage room of the refrigerator main body 1 that has been difficult to reach and is a dead space. The space in the machine room at the bottom of 1 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

  In the present embodiment, the matter relating to the main part of the invention described below is a type in which the compressor 27 is disposed by providing a machine room in the rear region of the lowermost storage room of the refrigerator main body 1 that has been conventionally common. It may be applied to other refrigerators.

  A cooling room 28 is provided on the back of the vegetable room 24 and the freezing room 25, and the cooling room 28 is partitioned from the vegetable room 24 and the freezing room 25 by a first cooling duct 29 having heat insulation properties. In the cooling chamber 28, a fin-and-tube type cooler 30 is disposed as a typical example. In the upper space of the cooler 30, the cold air cooled by the cooler 30 by the forced convection method is stored in the refrigerating chamber 21. A cooling fan 31 that blows air to the switching chamber 22, the ice making chamber 23, the vegetable chamber 24, and the freezing chamber 25 is disposed, and frost that adheres to the cooler 30 and the cooling fan 31 during cooling is defrosted in the lower space of the cooler 30. A radiant heater 32 made of a glass tube is provided as an apparatus for performing the above operation.

  For example, a sealing material such as flexible foam is attached to the outer periphery of the first cooling duct 29 so as not to cause cold air and water leakage. The first partition wall 33 that partitions the freezer compartment 25 and the vegetable compartment 24 is formed of a heat insulating material such as expanded polystyrene and is removable.

  The second partition wall 34 that divides the switching chamber 22, the ice making chamber 23, and the vegetable chamber 24 includes a substantially L-shaped second partition wall upper plate 35 and a flat plate-like second partition wall lower plate 36 as viewed from the side cross section. The second partition wall 34 is filled with foam heat insulating material 20 such as hard foam urethane. At this time, as described above, the switching chamber 22 and the ice making chamber 23 adjusted to a temperature lower than that of the vegetable chamber 24 are disposed above the vegetable chamber 24, and the vegetable chamber 24 is indirectly cooled from above and is secondly cooled. The second partition wall lower plate 36 functions as a cooling plate.

  The rear surface of the substantially L-shaped second partition wall upper plate 35 is formed of a heat insulating material 37 such as expanded polystyrene, and is supplied with cool air for cooling the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23. A second cooling duct 38 that forms a passage is provided, and a twin damper 39 as a damper device that adjusts the flow of cold air in the refrigerating chamber 21 and the switching chamber 22 is provided inside, and is switched to the refrigerating chamber 21. The damper device that adjusts the flow of the cold air in the chamber 22 is made into a twin damper, so that the accommodation space is made compact and the cost is reduced.

  The third partition wall 40 that partitions the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23 is configured by a third partition wall upper plate 41 and a third partition wall lower plate 42, and the third partition wall. 40 is filled with foam heat insulating material 20 such as hard foam urethane. A third cooling duct 43 for blowing cool air into the refrigerator compartment 21 is attached to the rear surface of the refrigerator compartment 21, and a joint surface between the third cooling duct 43 and the second cooling duct 38 is attached. The seal material is affixed to prevent cold air and water leakage. Further, the first cooling duct 29, the first partition wall 33, and the third cooling duct 43 can be removed, but the second partition wall 34, the second cooling duct 38, and the third partition wall 40 can be removed. Since it is attached before urethane foaming of the refrigerator body 1, it cannot be removed and is firmly joined to the refrigerator body 1 by the foam heat insulating material 20.

  Further, inside the first cooling duct 29, there are provided a refrigerator compartment 21, a switching chamber 22, an ice making chamber 23, and an air passage 41 for blowing cool air for cooling the freezer compartment 25. Furthermore, the return air path 42 for the refrigerating room returning the cool air from the refrigerating room 21 to the cooler 30, the return air path 43 for the switching room returning the cool air from the switching room 22 to the cooler 30, and the cool air from the ice making room 23. And an ice making chamber return air passage 44 for returning the air to the cooler 30. Furthermore, a vegetable room discharge port 45 through which a part of the cold air flowing through the refrigerating room return air passage 42 is introduced into the vegetable room 24 is provided above the first cooling duct 29. The vegetable room discharge port 45 is configured as a cooling means for cooling the storage container. In addition, a vegetable room suction port 46 for returning the cold air from the vegetable room 24 to the return air passage 42 for the refrigeration room is provided at a position below the vegetable room 24 of the first cooling duct 29. A part corresponding to the freezer compartment 25 of the cooling duct 29 is provided with a first freezer compartment outlet 47 and a second freezer compartment outlet 48 for blowing cool air from the air passage 41 into the freezer compartment 25. Yes. A freezer compartment inlet 49 for returning the cool air from the freezer compartment 25 to the cooler 30 is provided below the first cooling duct 29.

  In the vegetable compartment 24, a mist spraying means 67 is provided between the field chamber outlet 45 and the vegetable compartment inlet 46 in the vertical direction.

  In this way, the vegetable room 24 is provided with the mist spraying means 67, and cold air flows from the outside of the vegetable room 24 through the field air outlet 45 which is a cold air outlet, and the vegetable room suction which is a cold air inlet. After the cold air flows out of the vegetable compartment 24 through the mouth 46, the outside of the storage container provided in the vegetable compartment 24 is mainly introduced into the vegetable compartment 24 from the vegetable compartment suction port 46. A cold air flow path is formed through which the cold air flows and flows out of the vegetable room 24 through the vegetable room suction port 46, and a mist spraying means 67 is provided on the vegetable room suction port 46 side, which is the downstream side of the cold air flow path. Is provided.

  Further, in the present embodiment, the downstream side on the cold air flow path refers to the physical distance between the field chamber outlet 45 and the mist spray means 67 between the mist spray means 67 and the vegetable room suction port 46. The physical distance is not necessarily short, and the mist spraying means 67 is closer to the vegetable room suction port 46 than the field room discharge port 45 at a distance on the cold air flow path that is the air path inside the vegetable room. is there.

  Further, in the present embodiment, in the storage chamber provided with the mist spraying means 67, the field room discharge port 45 which is a cold air discharge port is disposed above the mist spraying means 67 and is a vegetable room which is a cold air suction port. The suction port 46 is disposed below the mist spraying means 67, and the vertical distance between the field chamber discharge port 45 and the mist spraying means 67 means is greater than the distance between the vegetable room suction port 46 and the mist spraying means 67. Located in a short position. In other words, the physical arrangement of the mist spraying means 67 is arranged on the upper side close to the vegetable compartment discharge port 45 in the vertical direction. The mist spraying means 67 is arranged on the downstream side of the vegetable room suction port 46 side on the cold air flow path in the vegetable room 24, so that the highest humidity after passing through the vegetable room. It is arrange | positioned in the downstream on the cold air | flow distribution path in the vegetable compartment 24 which is the side.

  Further, the mist spraying means 67 is disposed above the center line 24a in the vertical direction of the vegetable compartment 24. The second cooling duct 38 includes a refrigerating chamber air passage 50 for blowing cold air to the refrigerating chamber 21 through the twin damper 39 and a switching chamber air for blowing cold air to the switching chamber 22 through the twin damper 39. A path 51, a switching chamber discharge port 52 that discharges cold air into the switching chamber 75, an ice making chamber air path 53 that communicates directly from the air path 41 and blows cold air to the ice making chamber 23, and into the ice making chamber 23. An ice making chamber discharge port 54 for discharging cold air is provided. Further, the switching chamber return air passage 55 for returning the cold air from the switching chamber 22 to the cooler 30, the ice making chamber return air passage 56 for returning the cold air from the ice making chamber 23 to the cooler 30, and the cold air from the refrigerator compartment 21. Is provided with a return air passage 57 for the refrigerator compartment for returning the air to the cooler 30.

  The third cooling duct 43 has a refrigeration chamber air passage 58 for introducing cold air into the refrigeration chamber 21 and a plurality of refrigerating chamber outlets 59 for discharging the cold air from the refrigeration chamber air passage 58 to the refrigeration chamber 21. Is provided. Further, at the lower part of the third cooling duct 43, there are provided a refrigerator compartment suction port 60 for returning the cool air from the refrigerator compartment 21 to the cooler 30, and a refrigerator compartment return air passage 61.

  The vegetable compartment 24 is closed so that there is no inflow of outside air by a door 62 that can open its front opening.

  The door 62 is provided with a pair of left and right plate-like slide rails 63 extending into the vegetable compartment 24, and a lower storage container 64 is placed thereon. The door 62 is opened and closed horizontally by being pulled along the movable direction of the slide rail 63, and the lower storage container 64 is also operated and pulled out. Further, an upper storage container 65 is placed on the lower storage container 64 and is movable simultaneously with the lower storage container 64. At this time, the bottom surface area of the upper storage container 65 is configured to be smaller than the bottom surface area of the lower storage container 64. In this embodiment, the upper storage container 65 and the lower storage container 64 are arranged with a space in the front-rear direction, and a relatively tall food such as a long vegetable such as a PET bottle or Chinese cabbage can be stored in this space. Yes.

  Further, a lid 66 is disposed in the vegetable compartment 24, and when the door 62 is closed, the upper surface opening portion of the upper storage container 65 is closed. Further, when the door 62 is opened, the lid 66 remains in the vegetable compartment 24 and is not pulled out.

  A mist spraying means 67 is disposed in a part of the first cooling duct 29 and is located in the vicinity of the gap between the lower storage container 64 and the upper storage container 65.

  The upper storage container 65 is provided with a plurality of air circulation holes 68 in a part thereof.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 27 dissipates heat in a condenser (not shown), condenses and liquefies, and reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 27 and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 30. By the operation of the cooling fan 31, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 30 evaporates, and the supply of low-temperature cold air with a damper or the like is controlled to perform desired cooling of each chamber. The refrigerant exiting the cooler 30 is sucked into the compressor 27 through the suction pipe.

  When the heat is exchanged with the air in each storage chamber and heat is exchanged with the air in each storage chamber, moisture adheres to the cooler 30 and becomes frost. A signal is periodically output from a control board (not shown), the compressor 27 is stopped, the radiant heater 32 is energized, and the cooler 30 is defrosted.

  Next, the flow of cold air in the refrigerator body 1 will be described. The cool air blown from the cooling fan 31 is distributed downward and upward through the air passage 41 and blown. The cold air distributed downward passes through the first freezer compartment outlet 47 and the second freezer compartment outlet 48 and is discharged into the freezer compartment 25 to exchange heat with the air in the freezer compartment 25. It returns to the cooling chamber 28 through the suction port 49.

  Of the cool air blown from the cooling fan 31, the cool air distributed upward reaches the refrigerating chamber 21 from the refrigerating chamber discharge port 59 via the refrigerating chamber air passage 50 and the refrigerating chamber side of the twin damper 39. Further, a part reaches the switching chamber 22 from the switching chamber discharge port 52 via the switching chamber air passage 51 and the switching chamber side of the twin damper 39. Here, a signal is output from a control board (not shown) to operate the twin damper, the flow of cold air is controlled, the temperature of the refrigerator compartment 21 and the switching chamber 22 is controlled, and the internal temperature is adjusted to a predetermined temperature.

  The cool air blown into the switching chamber 22 exchanges heat with the air in the switching chamber 22 and returns to the cooling chamber 28 through the switching chamber return air passage 55.

  Further, the cold air blown into the refrigerator compartment 21 exchanges heat with the air in the refrigerator compartment 21 and is sucked from the refrigerator compartment suction port 60 to return the refrigerator compartment return air passage 61, the refrigerator compartment return air passage 57, It returns to the cooling chamber 28 through the return air passage 42 for the refrigerator compartment. Here, a part of the return cold air in the refrigerator compartment 21 flows into the vegetable compartment 24 through the vegetable compartment discharge port 45 provided in the middle of the refrigerator compartment return air passage 42, and the lid 66 and the second partition wall 34. And enters the lower storage container 64 from the front portion of the upper storage container 65. The cold air that has once entered the lower storage container 64 passes through the lower storage container 64 from the front portion of the lower storage container 64 again, is sucked from the vegetable room suction port 46, and merges with the return air path 42 for the cold storage room. As can be seen from this series of operations, the vegetable compartment 24 is cooled by using the return cold air from the refrigerator compartment 21.

  A lid 66 closes the upper opening of the upper storage container 65 provided in the vegetable compartment 24, and the stored food is prevented from being directly exposed to cold air and dried. Also, in the space in the front-rear direction of the lower storage container 64 and the upper storage container 65, generally beverages such as PET bottles are often placed, and cold air is directly touched on this part to ensure the cooling speed. Yes.

  From the food stored in the lower storage container 64, moisture evaporates with the passage of time from the time of charging. At this time, the air containing the transpirated water is put on the lower storage container 64 along the flow of a part of the cold air flowing into the lower storage container 64 through the upper space of the lid 66 on the flow of the discharge port 45 for the vegetable compartment. It flows out of the storage container through the gap on the back surface of the upper storage container 65 and reaches the mist spraying means 67 arranged in the vicinity. The inside of the mist spraying means 67 is cooled by the air passage 41 to be lower than the ambient temperature, and moisture in the air is condensed inside the mist spraying means 67. The condensed water is sprayed in a mist form from the gap between the lower storage container 64 and the upper storage container 65 into the storage container. As a result, the transpiration water from the stored food is returned to the stored food itself again by the mist spraying means 67.

  A part of the cool air discharged from the vegetable chamber discharge port 45 passes through the back of the lower storage container 64 and the upper storage container 65 and is sucked from the vegetable chamber suction port 46. The air containing the transpiration water from the stored food that has flowed out of the storage container through the gap between the lower storage container 64 and the upper storage container 65 flows downward along the flow of cold air on the rear surface of the storage container. Since the spraying means 67 is disposed on the vegetable room suction port 46 side, which is the downstream side of the cold air flow path, it is possible to efficiently recover the transpiration water.

  Thus, in the vegetable room 24, the mist spraying means 67 is provided between the field room discharge port 45 and the vegetable room suction port 46 in the vertical direction. Cold air flows in through a certain field discharge port 45 and flows out of the vegetable room 24 through the vegetable room suction port 46 which is a cold air suction port. After flowing in from the room suction port 46, a cold air flow path is formed in which the cold air mainly flows outside the storage container provided in the vegetable room 24 and flows out of the vegetable room 24 through the vegetable room suction port 46. The mist spraying means 67 is provided on the vegetable room suction port 46 side, which is the downstream side of the cold air flow path.

  As a result, the cold air flow path through which the cold air that has flowed into the storage chamber from the discharge port 45 for the field room flows out of the vegetable room 46 through the suction port 46 for the vegetable room has a relatively large amount of cold air flowing. The flow rate of the cold air becomes faster, the cold air in the storage container is pulled, and the high-humidity cold air leaks out on the cold air flow path, so that the moisture leaking from the storage container is efficiently recovered and is supplied to the mist spraying means 67. Condensation can be done, this condensed water can be changed to fine mist, fine mist with high diffusibility can be returned to the storage container again, and the storage container is fully humidified with fine mist to maintain the freshness of vegetables can do.

  Further, in the present embodiment, in the vegetable room 24 provided with the mist spraying means 67, the field-room discharge port 45 that is a cold air discharge port is disposed above the mist spraying means 67 and is a vegetable that is a cold air suction port. The room suction port 46 is disposed below the mist spraying means 67, and the vertical distance between the field chamber discharge port 45 and the mist spraying means 67 means the distance between the vegetable room suction port 46 and the mist spraying means 67. Is also placed in a short position. In other words, the mist spraying means 67 is arranged on the upper side close to the vegetable compartment discharge port 45 in the vertical direction.

  Thus, by providing the mist spraying device on the side close to the field discharge port 45 that is the cool air discharge port in the vertical direction, a large amount of fine mist generated by the mist spraying device 67 flows from the field chamber discharge port 45. The amount of fine mist contained in the cold air flowing in the vegetable compartment 24 can be sufficiently humidified with the fine mist, and the freshness of the vegetables can be maintained. In addition, after flowing in from the vegetable room suction port 46 as described above, the air flows mainly outside the storage container provided in the vegetable room 24 and passes through the vegetable room suction port 46 to the outside of the vegetable room 24. Since the mist spraying device 67 is arranged on the channel on the back wall side of the vegetable room 24 having the largest flow in the flowing cold air flow path, the fine mist generated by the mist spraying device 67 is discharged from the discharge port 45 for the field chamber. The chilled air flowing in the vegetable compartment 24 contains a lot of fine mist, so that the container is fully humidified with fine mist and maintains the freshness of the vegetables. can do.

  Moreover, in the vegetable compartment 24 provided with the mist spraying means 67, the mist spraying means 67 is arrange | positioned above the center line 24a in the up-down direction of the vegetable room 24, or the center line 24a in the up-down direction.

  Accordingly, the cold air can take advantage of the characteristic that the cold air flows downward, and the fine mist generated by the mist spraying device 67 from the upper side can be put on the flow of cold air flowing in the vegetable room 24 and flows in the vegetable room 24. By containing more fine mist in cold air, the inside of a storage container can fully be humidified with fine mist, and the freshness of vegetables can be maintained. Note that the gaps among the mist spraying means 67, the lower storage container 64, and the upper storage container 65 are not limited to those shown in FIG. 2 and may be slightly shifted. If a part of the mist spraying means 67 is approximately the same height as the gap between the lower storage container 64 and the upper storage container 65, the storage that has flowed out of the storage container through the gap between the back surfaces of the lower storage container 64 and the upper storage container 65. The air containing the transpiration water from the food flows downward along the flow of the cold air on the back surface of the storage container, and the mist spraying means 67 is arranged in the cold air flow path. It can be recovered.

  The amount of cool air that flows out of the storage container is small, and the cold air flows in the opposite direction to the mist spray described above, but it does not interfere with the diffusion of the mist spray, and the high humidity that flows out of the storage container. Water necessary for mist spraying can be supplied to the mist spraying means 67 by cold air.

  The mist particles sprayed at this time are, for example, about 0.005 μm to 20 μm and very fine. The mist spraying means 67 may be, for example, one that atomizes and sprays water with ultrasonic waves, one that uses an electrostatic atomization system, one that sprays using a pump system, or the like.

  In this way, the cycle of moisture transpiration from the food, condensation, and mist spraying is repeated. According to the present embodiment, the food that is concerned about the cooling speed, such as a PET bottle, is directly discharged cold. In addition, foods that are anxious about wilting, such as leafy vegetables, can be cooled according to the characteristics of the food by maintaining freshness by mist spraying.

  At this time, although not shown, the side wall inside the vegetable compartment 24 is appropriately heated by a heating means such as a heater, so that the mist particles diffused out of the storage container and the transpiration water from the vegetables are not condensed.

  The air circulation hole 68 of the upper storage container 65 plays a role of preventing excessive dew condensation in the upper storage container 65.

  In addition, if the attachment part of the mist spraying means 67 of a 1st cooling duct is set to wall thickness thinner than the circumference | surroundings, the mist spraying means 67 can be cooled more locally.

  In addition, the second partition wall lower plate 36 functions as a cooling plate and cools the inside of the storage container. However, the second partition wall lower plate 36 is configured to be larger than the upper storage container 65 and is formed of a PET bottle or the like. Since there is no obstacle between the container and the beverage, it is possible to cool a beverage such as a PET bottle relatively quickly.

  As described above, in the present embodiment, a refrigerator body having a storage room such as a refrigeration room, a switching room, an ice making room, a vegetable room, a freezing room, a door that closes the front opening of the storage room, and the storage A plurality of storage containers that are provided in the room and store foods and are arranged one above the other; a cooler that generates cool air that cools the storage chamber; a cool air outlet that discharges cool air into the storage chamber; and the storage A mist spraying means on the side of the vegetable room suction port 46 which is the downstream side of the cold air flow path between the cold air discharge port and the cold air suction port, comprising a cold air suction port for returning the cool air which has cooled the room to the cooler By arranging this, the moisture in the storage chamber is efficiently collected by the mist spraying means and returned to the storage container again, so that the storage container can be sufficiently humidified and the freshness of the vegetables can be maintained.

  Further, in the present embodiment, in the cooling duct that is arranged in the storage chamber and includes the cold air discharge port and the cold air suction port, the mist spraying means is connected to the cold air discharge port and the cold air suction port. The mist spraying means is disposed between the cooling mist and cools the mist spraying means to a temperature lower than that in the storage chamber, thereby efficiently condensing and collecting moisture flowing between the cold air discharge port and the cold air suction port. Can do.

  In the present embodiment, an ultrasonic method is used for the mist spraying means, fine mist with a particle diameter of several μm can be generated, and a large amount of spray can be handled. Further, the inside of the storage container can be sufficiently humidified with fine mist to maintain the freshness of the vegetables.

  In the present embodiment, an electrostatic atomization method may be used for the mist spraying means, fine mist having a particle diameter of several nm to several μm can be generated, and the sprayed mist has a negative charge. By taking on, the adhesion rate to vegetables etc. can be improved more and the freshness of vegetables can be maintained.

(Embodiment 2)
FIG. 3 is a longitudinal sectional view of the refrigerator in the second embodiment of the present invention.

  In FIG. 3, the refrigerator main body 1 is composed of an outer box 18 and an inner box 19. The inside of the refrigerator body 1 is filled with a foam heat insulating material 20 such as hard foam urethane and is insulated from the surroundings, and is divided into a plurality of storage rooms. . A refrigeration room 21 as a first storage room is provided at the top, and a switching room 22 as a fourth storage room and an ice making room 23 as a fifth storage room are provided side by side at the lower part of the refrigeration room 21. A vegetable room 24 as a second storage room is disposed below the chamber 22 and the ice making room 23, and a freezer room 25 as a third storage room is disposed at the bottom.

  The refrigerator compartment 21 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it is not frozen for refrigerated storage. In addition, the vegetable room 24 is often set to 2 ° C. to 7 ° C. which is the same as or slightly higher than the refrigerated room 21. The lower the temperature, the longer the freshness of the leafy vegetables can be maintained. The freezer compartment 25 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or −25 ° C. to improve the frozen storage state. It may be set at a low temperature.

  The switching chamber 22 is from a refrigeration temperature zone, in addition to refrigeration set at 1 ° C. to 5 ° C., vegetables set at 2 ° C. to 7 ° C., and freezing temperature zones normally set at −22 ° C. to −15 ° C. It is possible to switch to a preset temperature zone between the freezing temperature zones. For example, temperature between refrigeration and freezing such as soft freezing (approximately -12 ° C to -6 ° C), partial freezing (approximately -5 ° C to -1 ° C), chilled (approximately -1 ° C to 1 ° C) It is a belt. The switching chamber 22 is a storage chamber provided with an independent door arranged in parallel with the ice making chamber 23, and is often provided with a drawer-type door.

  In the present embodiment, the switching room 22 is a storage room including the refrigeration and freezing temperature zones. However, the refrigeration is performed in the refrigeration room 21, the vegetable room 24, and the freezing is performed in the freezing room 25. Of course, the storage room may be specialized for switching only the above temperature range.

  The ice making chamber 23 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 21, and an ice storage container ( (Not shown) is a storage room that is a storage room provided with an independent door with a small frontage provided in parallel with the switching room 22, and often has a drawer-type door.

  The top surface portion of the refrigerator main body 1 has a stepped recess shape toward the back side of the refrigerator. A machine chamber 26 is formed in the stepped recess portion to form a compressor 27 and a dryer for removing moisture (not shown). The components on the high pressure side of the refrigeration cycle are stored. That is, the machine room 26 in which the compressor 27 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 21. A refrigerator main body that is easy to use by a conventional refrigerator by providing a machine room 26 in the rear region of the uppermost storage room of the refrigerator main body 1 that has been difficult to reach and is a dead space. The space in the machine room at the bottom of 1 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

  In the present embodiment, the matter relating to the main part of the invention described below is a type in which the compressor 27 is disposed by providing a machine room in the rear region of the lowermost storage room of the refrigerator main body 1 that has been conventionally common. It may be applied to other refrigerators.

  A cooling room 28 is provided on the back of the vegetable room 24 and the freezing room 25, and the cooling room 28 is partitioned from the vegetable room 24 and the freezing room 25 by a first cooling duct 29 having heat insulation properties. In the cooling chamber 28, a fin-and-tube type cooler 30 is disposed as a typical example. In the upper space of the cooler 30, the cold air cooled by the cooler 30 by the forced convection method is stored in the refrigerating chamber 21. A cooling fan 31 that blows air to the switching chamber 22, the ice making chamber 23, the vegetable chamber 24, and the freezing chamber 25 is disposed, and frost that adheres to the cooler 30 and the cooling fan 31 during cooling is defrosted in the lower space of the cooler 30. A radiant heater 32 made of a glass tube is provided as an apparatus for performing the above operation.

  For example, a sealing material such as flexible foam is attached to the outer periphery of the first cooling duct 29 so as not to cause cold air and water leakage. The first partition wall 33 that partitions the freezer compartment 25 and the vegetable compartment 24 is formed of a heat insulating material such as expanded polystyrene and is removable.

  The second partition wall 34 that divides the switching chamber 22, the ice making chamber 23, and the vegetable chamber 24 includes a substantially L-shaped second partition wall upper plate 35 and a flat plate-like second partition wall lower plate 36 as viewed from the side cross section. The second partition wall 34 is filled with foam heat insulating material 20 such as hard foam urethane. At this time, as described above, the switching chamber 22 and the ice making chamber 23 adjusted to a temperature lower than that of the vegetable chamber 24 are disposed above the vegetable chamber 24, and the vegetable chamber 24 is indirectly cooled from above and is secondly cooled. The second partition wall lower plate 36 functions as a cooling plate.

  The rear surface of the substantially L-shaped second partition wall upper plate 35 is formed of a heat insulating material 37 such as expanded polystyrene, and is supplied with cool air for cooling the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23. A second cooling duct 38 that forms a passage is provided, and a twin damper 39 as a damper device that adjusts the flow of cold air in the refrigerating chamber 21 and the switching chamber 22 is provided inside, and is switched to the refrigerating chamber 21. The damper device that adjusts the flow of the cold air in the chamber 22 is made into a twin damper, so that the accommodation space is made compact and the cost is reduced.

  The third partition wall 40 that partitions the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23 is configured by a third partition wall upper plate 41 and a third partition wall lower plate 42, and the third partition wall. 40 is filled with foam heat insulating material 20 such as hard foam urethane. A third cooling duct 43 for blowing cool air into the refrigerator compartment 21 is attached to the rear surface of the refrigerator compartment 21, and a joint surface between the third cooling duct 43 and the second cooling duct 38 is attached. The seal material is affixed to prevent cold air and water leakage. Further, the first cooling duct 29, the first partition wall 33, and the third cooling duct 43 can be removed, but the second partition wall 34, the second cooling duct 38, and the third partition wall 40 can be removed. Since it is attached before urethane foaming of the refrigerator body 1, it cannot be removed and is firmly joined to the refrigerator body 1 by the foam heat insulating material 20.

  Further, inside the first cooling duct 29, there are provided a refrigerator compartment 21, a switching chamber 22, an ice making chamber 23, and an air passage 41 for blowing cool air for cooling the freezer compartment 25. Furthermore, the return air path 42 for the refrigerating room returning the cool air from the refrigerating room 21 to the cooler 30, the return air path 43 for the switching room returning the cool air from the switching room 22 to the cooler 30, and the cool air from the ice making room 23. And an ice making chamber return air passage 44 for returning the air to the cooler 30. Furthermore, a vegetable room discharge port 45 through which a part of the cold air flowing through the refrigerating room return air passage 42 is introduced into the vegetable room 24 is provided above the first cooling duct 29. The vegetable room discharge port 45 is configured as a cooling means for cooling the storage container. In addition, a vegetable room suction port 46 for returning the cold air from the vegetable room 24 to the return air passage 42 for the refrigeration room is provided at a position below the vegetable room 24 of the first cooling duct 29. A part corresponding to the freezer compartment 25 of the cooling duct 29 is provided with a first freezer compartment outlet 47 and a second freezer compartment outlet 48 for blowing cool air from the air passage 41 into the freezer compartment 25. Yes. A freezer compartment inlet 49 for returning the cool air from the freezer compartment 25 to the cooler 30 is provided below the first cooling duct 29. The second cooling duct 38 includes a refrigerating chamber air passage 50 for blowing cold air to the refrigerating chamber 21 through the twin damper 39 and a switching chamber air for blowing cold air to the switching chamber 22 through the twin damper 39. A path 51, a switching chamber discharge port 52 that discharges cold air into the switching chamber 75, an ice making chamber air path 53 that communicates directly from the air path 41 and blows cold air to the ice making chamber 23, and into the ice making chamber 23. An ice making chamber discharge port 54 for discharging cold air is provided.

  Further, the switching chamber return air passage 55 for returning the cold air from the switching chamber 22 to the cooler 30, the ice making chamber return air passage 56 for returning the cold air from the ice making chamber 23 to the cooler 30, and the cold air from the refrigerator compartment 21. Is provided with a return air passage 57 for the refrigerator compartment for returning the air to the cooler 30.

  The third cooling duct 43 has a refrigeration chamber air passage 58 for introducing cold air into the refrigeration chamber 21 and a plurality of refrigerating chamber outlets 59 for discharging the cold air from the refrigeration chamber air passage 58 to the refrigeration chamber 21. Is provided. Further, at the lower part of the third cooling duct 43, there are provided a refrigerator compartment suction port 60 for returning the cool air from the refrigerator compartment 21 to the cooler 30, and a refrigerator compartment return air passage 61.

  The vegetable compartment 24 is closed so that there is no inflow of outside air by a door 62 that can open its front opening.

  The door 62 is provided with a pair of left and right plate-like slide rails 63 extending into the vegetable compartment 24, and a lower storage container 64 is placed thereon. The door 62 is opened and closed in the horizontal direction along the movable direction of the slide rail 63, and accordingly, the lower storage container 64 is also operated and pulled out. Further, an upper storage container 65 is placed on the lower storage container 64 and is movable simultaneously with the lower storage container 64. At this time, the bottom surface area of the upper storage container 65 is configured to be smaller than the bottom surface area of the lower storage container 64. In this embodiment, the upper storage container 65 and the lower storage container 64 are arranged with a space in the front-rear direction, and a relatively tall food such as a long vegetable such as a PET bottle or Chinese cabbage can be stored in this space. Yes.

  A mist spraying means 67 is disposed in a part of the first cooling duct 29 and is located in the vicinity of the gap between the lower storage container 64 and the upper storage container 65.

  The upper storage container 65 is provided with a plurality of air circulation holes 68 in a part thereof.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 27 dissipates heat in a condenser (not shown), condenses and liquefies, and reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 27 and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 30. By the operation of the cooling fan 31, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 30 evaporates, and the supply of low-temperature cold air with a damper or the like is controlled to perform desired cooling of each chamber. The refrigerant exiting the cooler 30 is sucked into the compressor 27 through the suction pipe.

  When the heat is exchanged with the air in each storage chamber and heat is exchanged with the air in each storage chamber, moisture adheres to the cooler 30 and becomes frost. A signal is periodically output from a control board (not shown), the compressor 27 is stopped, the radiant heater 32 is energized, and the cooler 30 is defrosted.

  Next, the flow of cold air in the refrigerator body 1 will be described. The cool air blown from the cooling fan 31 is distributed downward and upward through the air passage 41 and blown. The cold air distributed downward passes through the first freezer compartment outlet 47 and the second freezer compartment outlet 48 and is discharged into the freezer compartment 25 to exchange heat with the air in the freezer compartment 25. It returns to the cooling chamber 28 through the suction port 49.

  Of the cool air blown from the cooling fan 31, the cool air distributed upward reaches the refrigerating chamber 21 from the refrigerating chamber discharge port 59 via the refrigerating chamber air passage 50 and the refrigerating chamber side of the twin damper 39. Further, a part reaches the switching chamber 22 from the switching chamber discharge port 52 via the switching chamber air passage 51 and the switching chamber side of the twin damper 39. Here, a signal is output from a control board (not shown) to operate the twin damper, the flow of cold air is controlled, the temperature of the refrigerator compartment 21 and the switching chamber 22 is controlled, and the internal temperature is adjusted to a predetermined temperature.

  The cold air blown into the refrigerating room 21 exchanges heat with the air in the refrigerating room 21 and is sucked from the refrigerating room suction port 60 to return to the refrigerating room return passage 61, the refrigerating room return air passage 57, and the refrigerating room. Return to the cooling chamber 28 through the return air passage 42. Here, a part of the return cold air in the refrigerator compartment 21 flows into the vegetable compartment 24 through the vegetable compartment outlet 45 provided in the middle of the refrigerator compartment return air passage 42 and flows through the upper part of the upper storage container 65. It enters the lower storage container 64 from the front portion of the upper storage container 65. The cold air that has once entered the lower storage container 64 passes through the lower storage container 64 from the front portion of the lower storage container 64 again, is sucked from the vegetable room suction port 46, and merges with the return air path 42 for the cold storage room. As can be seen from this series of operations, the vegetable compartment 24 is cooled by using the return cold air from the refrigerator compartment 21.

  The cool air blown into the switching chamber 22 exchanges heat with the air in the switching chamber 22 and returns to the cooling chamber 28 through the switching chamber return air passage 55.

  From the food stored in the lower storage container 64, moisture evaporates with the passage of time from the time of charging. At this time, the air containing the evaporated water is discharged from the discharge port 45 for the vegetable compartment, and flows into the lower storage container 64 through the air circulation hole 68 provided in the upper part of the upper storage container 65 and the upper storage container 65. Along a part of the flow, it flows out of the storage container through the gap between the back surfaces of the lower storage container 64 and the upper storage container 65 and reaches the mist spraying means 67 arranged in the vicinity. The inside of the mist spraying means 67 is cooled by the air passage 41 to be lower than the ambient temperature, and moisture in the air is condensed inside the mist spraying means 67. The condensed water is sprayed in a mist form from the gap between the lower storage container 64 and the upper storage container 65 into the storage container. As a result, the transpiration water from the stored food is returned to the stored food itself again by the mist spraying means 67.

  A part of the cool air discharged from the vegetable chamber discharge port 45 passes through the back of the lower storage container 64 and the upper storage container 65 and is sucked from the vegetable chamber suction port 46. The air containing the transpiration water from the stored food that has flowed out of the storage container through the gap between the lower storage container 64 and the upper storage container 65 flows downward along the flow of cold air on the rear surface of the storage container. Since the spraying means 67 is disposed on the vegetable room suction port 46 side, which is the downstream side on the cold air flow path, it is possible to efficiently recover the transpiration water.

  Note that the gaps among the mist spraying means 67, the lower storage container 64, and the upper storage container 65 are not limited to those shown in FIG. 2 and may be slightly shifted. If substantially a part of the mist spraying means 67 is at the same height as the gap between the lower storage container 64 and the upper storage container 65, substantially the same operation and effect can be obtained.

  Note that the amount of cool air flowing out of the storage container is small, and does not interfere with the mist spray. Further, it is possible to supply the mist spraying means 67 with water necessary for mist spraying. Furthermore, the cool air flowing out of the storage container is suppressed to a very small amount so as not to reduce the freshness of the food in the lower storage container 64.

  The mist particles sprayed at this time are, for example, about 0.005 μm to 20 μm and very fine. The mist spraying means 67 may be, for example, one that atomizes and sprays water with ultrasonic waves, one that uses an electrostatic atomization system, one that sprays using a pump system, or the like.

  In this way, the cycle of moisture transpiration from the food, condensation, and mist spraying is repeated. According to the present embodiment, the food that is concerned about the cooling speed, such as a PET bottle, is directly discharged cold. In addition, foods that are difficult to wither such as fruits can be stored in the upper storage container 65 and cooled directly in the same manner, and foods such as leafy vegetables that are worried about withering can be stored in the lower storage container 64. By storing, it is sprayed with mist and can maintain freshness.

  At this time, although not shown, the side wall inside the vegetable compartment 24 is appropriately heated by a heating means such as a heater, so that the mist particles diffused out of the storage container and the transpiration water from the vegetables are not condensed.

  In addition, if the attachment part of the mist spraying means 67 of a 1st cooling duct is set to wall thickness thinner than the circumference | surroundings, the mist spraying means 67 can be cooled more locally.

  In addition, the second partition wall lower plate 36 functions as a cooling plate and cools the inside of the storage container. However, the second partition wall lower plate 36 is configured to be larger than the upper storage container 65 and is formed of a PET bottle or the like. Since there is no obstacle between the container and the beverage, it is possible to cool a beverage such as a PET bottle relatively quickly.

  As described above, in the present embodiment, a refrigerator body having a storage room such as a refrigeration room, a switching room, an ice making room, a vegetable room, a freezing room, a door that closes the front opening of the storage room, and the storage A plurality of storage containers that are provided in the room and store foods and are arranged one above the other; a cooler that generates cool air that cools the storage chamber; a cool air outlet that discharges cool air into the storage chamber; and the storage It comprises a cold air suction port for returning cold air that has cooled the room to the cooler, and by disposing a mist spraying means in any of the cold air flow paths between the cold air discharge port and the cold air suction port, By efficiently recovering the moisture in the storage chamber by the mist spraying means and returning it to the storage container again, the storage container can be sufficiently humidified and the freshness of the vegetables can be maintained.

  Further, in the present embodiment, in the cooling duct that is arranged in the storage chamber and includes the cold air discharge port and the cold air suction port, the mist spraying means is connected to the cold air discharge port and the cold air suction port. The mist spraying means is disposed between the cooling mist and cools the mist spraying means to a temperature lower than that in the storage chamber, thereby efficiently condensing and collecting moisture flowing between the cold air discharge port and the cold air suction port. Can do.

  In the present embodiment, an ultrasonic method is used for the mist spraying means, and fine mist with a particle diameter of several μm can be generated.

  Moreover, in this Embodiment, you may use an electrostatic atomization system for a mist spraying means, and can generate | occur | produce fine mist with a particle diameter of several nanometers to several micrometers.

(Embodiment 3)
FIG. 4a is a longitudinal sectional view of the refrigerator according to the third embodiment of the present invention. FIG. 4b is a front view of the refrigerator according to Embodiment 3 of the present invention.

  4a and 4b, the refrigerator main body 1 is composed of an outer box 18 and an inner box 19, and the inside thereof is filled with a foam insulating material 20 such as hard foamed urethane to be insulated from the surroundings and divided into a plurality of storage rooms. Has been. A refrigeration room 21 as a first storage room is provided at the top, and a switching room 22 as a fourth storage room and an ice making room 23 as a fifth storage room are provided side by side at the lower part of the refrigeration room 21. A vegetable room 24 as a second storage room is disposed below the chamber 22 and the ice making room 23, and a freezer room 25 as a third storage room is disposed at the bottom.

  The refrigerator compartment 21 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it is not frozen for refrigerated storage. In addition, the vegetable room 24 is often set to 2 ° C. to 7 ° C. which is the same as or slightly higher than the refrigerated room 21. The lower the temperature, the longer the freshness of the leafy vegetables can be maintained. The freezer compartment 25 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or −25 ° C. to improve the frozen storage state. It may be set at a low temperature.

  The switching chamber 22 is from a refrigeration temperature zone, in addition to refrigeration set at 1 ° C. to 5 ° C., vegetables set at 2 ° C. to 7 ° C., and freezing temperature zones normally set at −22 ° C. to −15 ° C. It is possible to switch to a preset temperature zone between the freezing temperature zones. For example, temperature between refrigeration and freezing such as soft freezing (approximately -12 ° C to -6 ° C), partial freezing (approximately -5 ° C to -1 ° C), chilled (approximately -1 ° C to 1 ° C) It is a belt. The switching chamber 22 is a storage chamber provided with an independent door arranged in parallel with the ice making chamber 23, and is often provided with a drawer-type door.

  In the present embodiment, the switching room 22 is a storage room including the refrigeration and freezing temperature zones. However, the refrigeration is performed in the refrigeration room 21, the vegetable room 24, and the freezing is performed in the freezing room 25. Of course, the storage room may be specialized for switching only the above temperature range.

  The ice making chamber 23 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 21, and an ice storage container ( (Not shown) is a storage room that is a storage room provided with an independent door with a small frontage provided in parallel with the switching room 22, and often has a drawer-type door.

  The top surface portion of the refrigerator main body 1 has a stepped recess shape toward the back side of the refrigerator. A machine chamber 26 is formed in the stepped recess portion to form a compressor 27 and a dryer for removing moisture (not shown). The components on the high pressure side of the refrigeration cycle are stored. That is, the machine room 26 in which the compressor 27 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 21. A refrigerator main body that is easy to use by a conventional refrigerator by providing a machine room 26 in the rear region of the uppermost storage room of the refrigerator main body 1 that has been difficult to reach and is a dead space. The space in the machine room at the bottom of 1 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

  In the present embodiment, the matter relating to the main part of the invention described below is a type in which the compressor 27 is disposed by providing a machine room in the rear region of the lowermost storage room of the refrigerator main body 1 that has been conventionally common. It may be applied to other refrigerators.

  A cooling room 28 is provided on the back of the vegetable room 24 and the freezing room 25, and the cooling room 28 is partitioned from the vegetable room 24 and the freezing room 25 by a first cooling duct 29 having heat insulation properties. In the cooling chamber 28, a fin-and-tube type cooler 30 is disposed as a typical example. In the upper space of the cooler 30, the cold air cooled by the cooler 30 by the forced convection method is stored in the refrigerating chamber 21. A cooling fan 31 that blows air to the switching chamber 22, the ice making chamber 23, the vegetable chamber 24, and the freezing chamber 25 is disposed, and frost that adheres to the cooler 30 and the cooling fan 31 during cooling is defrosted in the lower space of the cooler 30. A radiant heater 32 made of a glass tube is provided as an apparatus for performing the above operation.

  For example, a sealing material such as flexible foam is attached to the outer periphery of the first cooling duct 29 so as not to cause cold air and water leakage. The first partition wall 33 that partitions the freezer compartment 25 and the vegetable compartment 24 is formed of a heat insulating material such as expanded polystyrene and is removable.

  The second partition wall 34 that divides the switching chamber 22, the ice making chamber 23, and the vegetable chamber 24 includes a substantially L-shaped second partition wall upper plate 35 and a flat plate-like second partition wall lower plate 36 as viewed from the side cross section. The second partition wall 34 is filled with foam heat insulating material 20 such as hard foam urethane. At this time, as described above, the switching chamber 22 and the ice making chamber 23 adjusted to a temperature lower than that of the vegetable chamber 24 are disposed above the vegetable chamber 24, and the vegetable chamber 24 is indirectly cooled from above and is secondly cooled. The second partition wall lower plate 36 functions as a cooling plate.

  The rear surface of the substantially L-shaped second partition wall upper plate 35 is formed of a heat insulating material 37 such as expanded polystyrene, and is supplied with cool air for cooling the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23. A second cooling duct 38 that forms a passage is provided, and a twin damper 39 as a damper device that adjusts the flow of cold air in the refrigerating chamber 21 and the switching chamber 22 is provided inside, and is switched to the refrigerating chamber 21. The damper device that adjusts the flow of the cold air in the chamber 22 is made into a twin damper, so that the accommodation space is made compact and the cost is reduced.

  The third partition wall 40 that partitions the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23 is configured by a third partition wall upper plate 41 and a third partition wall lower plate 42, and the third partition wall. 40 is filled with foam heat insulating material 20 such as hard foam urethane. A third cooling duct 43 for blowing cool air into the refrigerator compartment 21 is attached to the rear surface of the refrigerator compartment 21, and a joint surface between the third cooling duct 43 and the second cooling duct 38 is attached. The seal material is affixed to prevent cold air and water leakage. Further, the first cooling duct 29, the first partition wall 33, and the third cooling duct 43 can be removed, but the second partition wall 34, the second cooling duct 38, and the third partition wall 40 can be removed. Since it is attached before urethane foaming of the refrigerator body 1, it cannot be removed and is firmly joined to the refrigerator body 1 by the foam heat insulating material 20.

  Further, inside the first cooling duct 29, there are provided a refrigerator compartment 21, a switching chamber 22, an ice making chamber 23, and an air passage 41 for blowing cool air for cooling the freezer compartment 25. Furthermore, the return air path 42 for the refrigerating room returning the cool air from the refrigerating room 21 to the cooler 30, the return air path 43 for the switching room returning the cool air from the switching room 22 to the cooler 30, and the cool air from the ice making room 23. And an ice making chamber return air passage 44 for returning the air to the cooler 30. Furthermore, a vegetable room discharge port 45 through which a part of the cold air flowing through the refrigerating room return air passage 42 is introduced into the vegetable room 24 is provided above the first cooling duct 29. The vegetable room discharge port 45 is configured as a cooling means for cooling the storage container.

  In addition, a vegetable room suction port 46 for returning the cold air from the vegetable room 24 to the return air passage 42 for the refrigeration room is provided at a position below the vegetable room 24 of the first cooling duct 29. A part corresponding to the freezer compartment 25 of the cooling duct 29 is provided with a first freezer compartment outlet 47 and a second freezer compartment outlet 48 for blowing cool air from the air passage 41 into the freezer compartment 25. Yes. A freezer compartment inlet 49 for returning the cool air from the freezer compartment 25 to the cooler 30 is provided below the first cooling duct 29.

  In the vegetable compartment 24, a mist spraying means 67 is provided between the field chamber outlet 45 and the vegetable compartment inlet 46 in the vertical direction.

  In this way, the vegetable room 24 is provided with the mist spraying means 67, and cold air flows from the outside of the vegetable room 24 through the field air outlet 45 which is a cold air outlet, and the vegetable room suction which is a cold air inlet. As cold air flows out of the vegetable compartment 24 through the mouth 46, a cold air circulation path is formed in the vegetable compartment 24, and a mist spraying means 67 is provided on the cold air circulation path.

  Further, in the present embodiment, in the storage chamber provided with the mist spraying means 67, the field room discharge port 45 which is a cold air discharge port is disposed above the mist spraying means 67 and is a vegetable room which is a cold air suction port. The suction port 46 is disposed below the mist spraying means 67, and the vertical distance between the field chamber discharge port 45 and the mist spraying means 67 means is greater than the distance between the vegetable room suction port 46 and the mist spraying means 67. Located in a short position. In other words, the mist spraying means 67 is arranged on the upper side close to the vegetable compartment discharge port 45 in the vertical direction.

  Furthermore, the mist spraying means 67 is physically disposed above the center line 24a in the vertical direction of the vegetable compartment 24, and on the cold air flow path, the vegetable compartment inlet 46 side which is the downstream side. Is provided.

  Further, the mist spraying means 67 is disposed closer to the vegetable room suction port 46 than the center line 24 b in the left-right direction of the vegetable room 24.

  The second cooling duct 38 includes a refrigerating chamber air passage 50 for blowing cold air to the refrigerating chamber 21 through the twin damper 39 and a switching chamber air for blowing cold air to the switching chamber 22 through the twin damper 39. A path 51, a switching chamber discharge port 52 that discharges cold air into the switching chamber 75, an ice making chamber air path 53 that communicates directly from the air path 41 and blows cold air to the ice making chamber 23, and into the ice making chamber 23. An ice making chamber discharge port 54 for discharging cold air is provided. Further, the switching chamber return air passage 55 for returning the cold air from the switching chamber 22 to the cooler 30, the ice making chamber return air passage 56 for returning the cold air from the ice making chamber 23 to the cooler 30, and the cold air from the refrigerator compartment 21. Is provided with a return air passage 57 for the refrigerator compartment for returning the air to the cooler 30.

  The third cooling duct 43 has a refrigeration chamber air passage 58 for introducing cold air into the refrigeration chamber 21 and a plurality of refrigerating chamber outlets 59 for discharging the cold air from the refrigeration chamber air passage 58 to the refrigeration chamber 21. Is provided. Further, at the lower part of the third cooling duct 43, there are provided a refrigerator compartment suction port 60 for returning the cool air from the refrigerator compartment 21 to the cooler 30, and a refrigerator compartment return air passage 61.

  The vegetable compartment 24 is closed so that there is no inflow of outside air by a door 62 that can open its front opening.

  The door 62 is provided with a pair of left and right plate-like slide rails 63 extending into the vegetable compartment 24, and a lower storage container 64 is placed thereon. The door 62 is opened and closed horizontally by being pulled along the movable direction of the slide rail 63, and the lower storage container 64 is also operated and pulled out. Further, an upper storage container 65 is placed on the lower storage container 64 and is movable simultaneously with the lower storage container 64. At this time, the bottom surface area of the upper storage container 65 is configured to be smaller than the bottom surface area of the lower storage container 64. In this embodiment, the upper storage container 65 and the lower storage container 64 are arranged with a space in the front-rear direction, and a relatively tall food such as a long vegetable such as a PET bottle or Chinese cabbage can be stored in this space. Yes.

  Further, a lid 66 is disposed in the vegetable compartment 24, and when the door 62 is closed, the upper surface opening portion of the upper storage container 65 is closed. Further, when the door 62 is opened, the lid 66 remains in the vegetable compartment 24 and is not pulled out.

  A mist spraying means 67 is disposed in a part of the first cooling duct 29, and the lower end of the mist spraying means 67 is above the bottom surface of the upper storage container 65.

  The upper storage container 65 is provided with a plurality of air circulation holes 68 in a part thereof.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 27 dissipates heat in a condenser (not shown), condenses and liquefies, and reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 27 and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 30. By the operation of the cooling fan 31, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 30 evaporates, and the supply of low-temperature cold air with a damper or the like is controlled to perform desired cooling of each chamber. The refrigerant exiting the cooler 30 is sucked into the compressor 27 through the suction pipe.

  When the heat is exchanged with the air in each storage chamber and heat is exchanged with the air in each storage chamber, moisture adheres to the cooler 30 and becomes frost. A signal is periodically output from a control board (not shown), the compressor 27 is stopped, the radiant heater 32 is energized, and the cooler 30 is defrosted.

  Next, the flow of cold air in the refrigerator body 1 will be described. The cool air blown from the cooling fan 31 is distributed downward and upward through the air passage 41 and blown. The cold air distributed downward passes through the first freezer compartment outlet 47 and the second freezer compartment outlet 48 and is discharged into the freezer compartment 25 to exchange heat with the air in the freezer compartment 25. It returns to the cooling chamber 28 through the suction port 49.

  Of the cool air blown from the cooling fan 31, the cool air distributed upward reaches the refrigerating chamber 21 from the refrigerating chamber discharge port 59 via the refrigerating chamber air passage 50 and the refrigerating chamber side of the twin damper 39. Further, a part reaches the switching chamber 22 from the switching chamber discharge port 52 via the switching chamber air passage 51 and the switching chamber side of the twin damper 39. Here, a signal is output from a control board (not shown) to operate the twin damper, the flow of cold air is controlled, the temperature of the refrigerator compartment 21 and the switching chamber 22 is controlled, and the internal temperature is adjusted to a predetermined temperature.

  The cold air blown into the refrigerating room 21 exchanges heat with the air in the refrigerating room 21 and is sucked from the refrigerating room suction port 60 to return to the refrigerating room return passage 61, the refrigerating room return air passage 57, and the refrigerating room. Return to the cooling chamber 28 through the return air passage 42. Here, a part of the return cold air in the refrigerator compartment 21 flows into the vegetable compartment 24 through the vegetable compartment discharge port 45 provided in the middle of the refrigerator compartment return air passage 42, and the lid 66 and the second partition wall 34. And enters the lower storage container 64 from the front portion of the upper storage container 65. The cold air that has once entered the lower storage container 64 passes through the lower storage container 64 from the front portion of the lower storage container 64 again, is sucked from the vegetable room suction port 46, and merges with the return air path 42 for the cold storage room. As can be seen from this series of operations, the vegetable compartment 24 is cooled by using the return cold air from the refrigerator compartment 21.

  The cool air blown into the switching chamber 22 exchanges heat with the air in the switching chamber 22 and returns to the cooling chamber 28 through the switching chamber return air passage 55.

  A lid 66 closes the upper opening of the upper storage container 65 so that the stored food is directly exposed to cold air and prevented from drying. Also, in the space in the front-rear direction of the lower storage container 64 and the upper storage container 65, generally beverages such as PET bottles are often placed, and cold air is directly touched on this part to ensure the cooling speed. Yes.

  From the food stored in the lower storage container 64, moisture evaporates with the passage of time from the time of charging. At this time, the air containing the evaporated water is discharged from the discharge port 45 for the vegetable compartment and flows into the lower storage container 64 through the upper space of the lid 66 along the partial flow of the cold storage container 64 and the upper storage container 64. It flows out of the storage container through the gap on the back surface of the storage container 65 and reaches the mist spraying means 67 arranged in the vicinity. The inside of the mist spraying means 67 is cooled by the air passage 41 to be lower than the ambient temperature, and moisture in the air is condensed inside the mist spraying means 67. The condensed water is sprayed on the space behind the upper storage container 64, but the mist particles naturally drop by their own weight, and the lower storage container 64 and the upper storage container located below the mist spraying means 67. It diffuses into the container from the gap of 65. As a result, since the transpiration water from the stored food is returned to the stored food itself by the mist spraying means 67, the arrangement of the mist spraying device is physically above the center line 24a in the vertical direction of the vegetable compartment 24. It is desirable to be arranged in.

  A part of the cool air discharged from the vegetable chamber discharge port 45 passes through the back of the lower storage container 64 and the upper storage container 65 and is sucked from the vegetable chamber suction port 46. The air containing the transpiration water from the stored food that has flowed out of the storage container through the gap between the lower storage container 64 and the upper storage container 65 flows downward along the flow of cold air on the rear surface of the storage container. Since the spraying means 67 is disposed on the downstream side of the cold air flow path, the transpiration water can be efficiently recovered.

  Thus, in the vegetable room 24, the mist spraying means 67 is provided between the field room discharge port 45 and the vegetable room suction port 46 in the vertical direction. Cold air flows in through a certain field discharge port 45 and flows out of the vegetable room 24 through the vegetable room suction port 46, which is a cold air intake, so that the cold air flows into the vegetable room 24. A path is formed, and mist spraying means 67 is provided on the downstream side of the cold air flow path.

  As a result, the amount of cool air flowing in the downstream side of the cold air flow path in which the cold air flowing into the storage chamber from the discharge port 45 for the field room flows out of the vegetable room 46 through the suction port 46 for the vegetable room is large. The mist spraying means 67 efficiently collects the leaked moisture from the inside of the storage container by increasing the flow rate of the cool air and pulling the cool air in the storage container so that the high-humidity cold air leaks out into the cold air flow path. The condensed water can be changed into fine mist, and the highly diffusible fine mist can be returned to the storage container again. The storage container is sufficiently humidified with the fine mist to increase the freshness of the vegetables. Since the mist spraying device can be maintained, the arrangement of the mist spraying device is desirably on the downstream side in the cold air flow path.

  Therefore, in the present embodiment, in the vegetable room 24 provided with the mist spraying means 67, the field-room discharge port 45 that is a cold air discharge port is disposed above the mist spraying means 67 and is a vegetable that is a cold air suction port. The room suction port 46 is disposed below the mist spraying means 67, and the vertical distance between the field chamber discharge port 45 and the mist spraying means 67 means the distance between the vegetable room suction port 46 and the mist spraying means 67. Is also placed in a short position. Moreover, in the vegetable compartment 24 provided with the mist spraying means 67, the mist spraying means 67 is arrange | positioned above the center line 24a in the up-down direction of the vegetable room 24, or the center line 24a in the up-down direction.

  In other words, the mist spraying means 67 is arranged on the upper side in the vertical direction in the physical positional relationship, and the cold air is generated by the mist spraying device 67 from the upper side taking advantage of the characteristic of flowing downward. The fine mist can be put on the flow of cold air flowing through the vegetable compartment 24 and is diffused into the storage container located below the mist spraying means 67 to improve the diffusibility. Arrangement is provided on the vegetable room suction port 46 side, which is the downstream side on the cold air flow path, so that high humidity cold air can be secured, and the air in the storage room is condensed as in this embodiment. In the refrigerator of the type that replenishes moisture to the mist spraying means 67, both diffusibility of mist and intake of high-humidity air around the mist spraying device can be realized. It can be said to be a valid configuration.

  The mist spraying means 67 is disposed closer to the vegetable room suction port 46 than the center line 24 b in the left-right direction of the vegetable room 24.

  By arranging the mist spraying device 67 on the side of the vegetable room suction port 46 where the humidity becomes higher in the left-right direction thereby, it is provided on the side of the vegetable room suction port 46 that is further downstream on the cold air flow path. Since the mist spraying device 67 is arranged on the higher humidity side, moisture contained in the cold air can be efficiently collected and condensed on the mist spraying means 67, so that the inside of the storage container is sufficiently humidified with fine mist. Can maintain the freshness of vegetables. In addition, in the condition that the cold air is not discharged from the field room outlet 145 into the vegetable room 124, the field room outlet 145 is closed by the damper, but the vegetable room suction port not provided with the damper. Since 146 is open, the cold air in the vegetable compartment 124 is pulled little by little, so that a flow toward the vegetable room suction port 146 that is the outlet of the cold air to the outside of the storage compartment is generated in the storage compartment. Since the humidity on the suction port 46 side becomes higher in the left-right direction, moisture leaking from the storage container can be efficiently recovered and condensed on the mist spraying means 167, and this condensed water is changed into fine mist, The highly diffusible fine mist can be returned to the storage container again, and the storage container can be sufficiently humidified with the fine mist to maintain the freshness of the vegetables.

  Note that the amount of cool air flowing out of the storage container is small, and does not interfere with the mist spray. Further, it is possible to supply the mist spraying means 67 with water necessary for mist spraying. Furthermore, the cool air flowing out of the storage container is suppressed to a very small amount so as not to reduce the freshness of the food in the lower storage container 64.

  The mist particles sprayed at this time are, for example, about 0.005 μm to 20 μm and very fine. The mist spraying means 67 may be, for example, one that atomizes and sprays water with ultrasonic waves, one that uses an electrostatic atomization system, one that sprays using a pump system, or the like.

  In this way, the cycle of moisture transpiration from the food, condensation, and mist spraying is repeated. According to the present embodiment, the food that is concerned about the cooling speed, such as a PET bottle, is directly discharged cold. The freshness can be maintained by mist spraying for foods that are cooled down and wilted like leafy vegetables.

  At this time, although not shown, the side wall inside the vegetable compartment 24 is appropriately heated by a heating means such as a heater, so that the mist particles diffused out of the storage container and the transpiration water from the vegetables are not condensed.

  The air circulation hole 68 of the upper storage container 65 plays a role of preventing excessive dew condensation in the upper storage container 65.

  In addition, if the attachment part of the mist spraying means 67 of a 1st cooling duct is set to wall thickness thinner than the circumference | surroundings, the mist spraying means 67 can be cooled more locally.

  In addition, the second partition wall lower plate 36 functions as a cooling plate and cools the inside of the storage container. However, the second partition wall lower plate 36 is configured to be larger than the upper storage container 65 and is formed of a PET bottle or the like. Since there is no obstacle between the container and the beverage, it is possible to cool a beverage such as a PET bottle relatively quickly.

  As described above, in the present embodiment, a refrigerator body having a storage room such as a refrigeration room, a switching room, an ice making room, a vegetable room, a freezing room, a door that closes the front opening of the storage room, and the storage A plurality of storage containers that are provided in the room and store foods and are arranged one above the other; a cooler that generates cool air that cools the storage chamber; a cool air outlet that discharges cool air into the storage chamber; and the storage It consists of a cold air inlet that returns the cold air that has cooled the room to the cooler, and by disposing a mist spraying means on the downstream side of the cold air flow path between the cold air outlet and the cold air inlet, By efficiently recovering the moisture in the storage chamber by the mist spraying means and returning it to the storage container again, the storage container can be sufficiently humidified and the freshness of the vegetables can be maintained.

  Further, in the present embodiment, in the cooling duct that is arranged in the storage chamber and includes the cold air discharge port and the cold air suction port, the mist spraying means is connected to the cold air discharge port and the cold air suction port. The mist spraying means is disposed between the cooling mist and cools the mist spraying means to a temperature lower than that in the storage chamber, thereby efficiently condensing and collecting moisture flowing between the cold air discharge port and the cold air suction port. Can do.

  In the present embodiment, an ultrasonic method is used for the mist spraying means, and fine mist with a particle diameter of several μm can be generated.

  Moreover, in this Embodiment, you may use an electrostatic atomization system for a mist spraying means, and can generate | occur | produce fine mist with a particle diameter of several nanometers to several micrometers.

(Embodiment 4)
FIG. 5 is a longitudinal sectional view of the refrigerator in the fourth embodiment of the present invention.

  In FIG. 5, the refrigerator main body 1 is composed of an outer box 18 and an inner box 19. The inside of the refrigerator body 1 is filled with a foam heat insulating material 20 such as hard foam urethane and is insulated from the surroundings, and is divided into a plurality of storage rooms. . A refrigeration room 21 as a first storage room is provided at the top, and a switching room 22 as a fourth storage room and an ice making room 23 as a fifth storage room are provided side by side at the lower part of the refrigeration room 21. A vegetable room 24 as a second storage room is disposed below the chamber 22 and the ice making room 23, and a freezer room 25 as a third storage room is disposed at the bottom.

  The refrigerator compartment 21 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it is not frozen for refrigerated storage. In addition, the vegetable room 24 is often set to 2 ° C. to 7 ° C. which is the same as or slightly higher than the refrigerated room 21. The lower the temperature, the longer the freshness of the leafy vegetables can be maintained. The freezer compartment 25 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or −25 ° C. to improve the frozen storage state. It may be set at a low temperature.

  The switching chamber 22 is from a refrigeration temperature zone, in addition to refrigeration set at 1 ° C. to 5 ° C., vegetables set at 2 ° C. to 7 ° C., and freezing temperature zones normally set at −22 ° C. to −15 ° C. It is possible to switch to a preset temperature zone between the freezing temperature zones. For example, temperature between refrigeration and freezing such as soft freezing (approximately -12 ° C to -6 ° C), partial freezing (approximately -5 ° C to -1 ° C), chilled (approximately -1 ° C to 1 ° C) It is a belt. The switching chamber 22 is a storage chamber provided with an independent door arranged in parallel with the ice making chamber 23, and is often provided with a drawer-type door.

  In the present embodiment, the switching room 22 is a storage room including the refrigeration and freezing temperature zones. However, the refrigeration is performed in the refrigeration room 21, the vegetable room 24, and the freezing is performed in the freezing room 25. Of course, the storage room may be specialized for switching only the above temperature range.

  The ice making chamber 23 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 21, and an ice storage container ( (Not shown) is a storage room that is a storage room provided with an independent door with a small frontage provided in parallel with the switching room 22, and often has a drawer-type door.

  The top surface portion of the refrigerator main body 1 has a stepped recess shape toward the back side of the refrigerator. A machine chamber 26 is formed in the stepped recess portion to form a compressor 27 and a dryer for removing moisture (not shown). The components on the high pressure side of the refrigeration cycle are stored. That is, the machine room 26 in which the compressor 27 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 21. A refrigerator main body that is easy to use by a conventional refrigerator by providing a machine room 26 in the rear region of the uppermost storage room of the refrigerator main body 1 that has been difficult to reach and is a dead space. The space in the machine room at the bottom of 1 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

  In the present embodiment, the matter relating to the main part of the invention described below is a type in which the compressor 27 is disposed by providing a machine room in the rear region of the lowermost storage room of the refrigerator main body 1 that has been conventionally common. It may be applied to other refrigerators.

  A cooling room 28 is provided on the back of the vegetable room 24 and the freezing room 25, and the cooling room 28 is partitioned from the vegetable room 24 and the freezing room 25 by a first cooling duct 29 having heat insulation properties. In the cooling chamber 28, a fin-and-tube type cooler 30 is disposed as a typical example. In the upper space of the cooler 30, the cold air cooled by the cooler 30 by the forced convection method is stored in the refrigerating chamber 21. A cooling fan 31 that blows air to the switching chamber 22, the ice making chamber 23, the vegetable chamber 24, and the freezing chamber 25 is disposed, and frost that adheres to the cooler 30 and the cooling fan 31 during cooling is defrosted in the lower space of the cooler 30. A radiant heater 32 made of a glass tube is provided as an apparatus for performing the above operation.

  For example, a sealing material such as flexible foam is attached to the outer periphery of the first cooling duct 29 so as not to cause cold air and water leakage. The first partition wall 33 that partitions the freezer compartment 25 and the vegetable compartment 24 is formed of a heat insulating material such as expanded polystyrene and is removable.

  The second partition wall 34 that divides the switching chamber 22, the ice making chamber 23, and the vegetable chamber 24 includes a substantially L-shaped second partition wall upper plate 35 and a flat plate-like second partition wall lower plate 36 as viewed from the side cross section. The second partition wall 34 is filled with foam heat insulating material 20 such as hard foam urethane. At this time, as described above, the switching chamber 22 and the ice making chamber 23 adjusted to a temperature lower than that of the vegetable chamber 24 are disposed above the vegetable chamber 24, and the vegetable chamber 24 is indirectly cooled from above and is secondly cooled. The second partition wall lower plate 36 functions as a cooling plate.

  The rear surface of the substantially L-shaped second partition wall upper plate 35 is formed of a heat insulating material 37 such as expanded polystyrene, and is supplied with cool air for cooling the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23. A second cooling duct 38 that forms a passage is provided, and a twin damper 39 as a damper device that adjusts the flow of cold air in the refrigerating chamber 21 and the switching chamber 22 is provided inside, and is switched to the refrigerating chamber 21. The damper device that adjusts the flow of the cold air in the chamber 22 is made into a twin damper, so that the accommodation space is made compact and the cost is reduced.

  The third partition wall 40 that partitions the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23 is configured by a third partition wall upper plate 41 and a third partition wall lower plate 42, and the third partition wall. 40 is filled with foam heat insulating material 20 such as hard foam urethane. A third cooling duct 43 for blowing cool air into the refrigerator compartment 21 is attached to the rear surface of the refrigerator compartment 21, and a joint surface between the third cooling duct 43 and the second cooling duct 38 is attached. The seal material is affixed to prevent cold air and water leakage. Further, the first cooling duct 29, the first partition wall 33, and the third cooling duct 43 can be removed, but the second partition wall 34, the second cooling duct 38, and the third partition wall 40 can be removed. Since it is attached before urethane foaming of the refrigerator body 1, it cannot be removed and is firmly joined to the refrigerator body 1 by the foam heat insulating material 20.

  Further, inside the first cooling duct 29, there are provided a refrigerator compartment 21, a switching chamber 22, an ice making chamber 23, and an air passage 41 for blowing cool air for cooling the freezer compartment 25. Furthermore, the return air path 42 for the refrigerating room returning the cool air from the refrigerating room 21 to the cooler 30, the return air path 43 for the switching room returning the cool air from the switching room 22 to the cooler 30, and the cool air from the ice making room 23. And an ice making chamber return air passage 44 for returning the air to the cooler 30. Furthermore, a vegetable room discharge port 45 through which a part of the cold air flowing through the refrigerating room return air passage 42 is introduced into the vegetable room 24 is provided above the first cooling duct 29. The vegetable room discharge port 45 is configured as a cooling means for cooling the storage container. In addition, a vegetable room suction port 46 for returning the cold air from the vegetable room 24 to the return air passage 42 for the refrigeration room is provided at a position below the vegetable room 24 of the first cooling duct 29. A part corresponding to the freezer compartment 25 of the cooling duct 29 is provided with a first freezer compartment outlet 47 and a second freezer compartment outlet 48 for blowing cool air from the air passage 41 into the freezer compartment 25. Yes. A freezer compartment inlet 49 for returning the cool air from the freezer compartment 25 to the cooler 30 is provided below the first cooling duct 29.

  The second cooling duct 38 includes a refrigerating chamber air passage 50 for blowing cold air to the refrigerating chamber 21 through the twin damper 39 and a switching chamber air for blowing cold air to the switching chamber 22 through the twin damper 39. A path 51, a switching chamber discharge port 52 that discharges cold air into the switching chamber 75, an ice making chamber air path 53 that communicates directly from the air path 41 and blows cold air to the ice making chamber 23, and into the ice making chamber 23. An ice making chamber discharge port 54 for discharging cold air is provided. Further, the switching chamber return air passage 55 for returning the cold air from the switching chamber 22 to the cooler 30, the ice making chamber return air passage 56 for returning the cold air from the ice making chamber 23 to the cooler 30, and the cold air from the refrigerator compartment 21. Is provided with a return air passage 57 for the refrigerator compartment for returning the air to the cooler 30.

  The third cooling duct 43 has a refrigeration chamber air passage 58 for introducing cold air into the refrigeration chamber 21 and a plurality of refrigerating chamber outlets 59 for discharging the cold air from the refrigeration chamber air passage 58 to the refrigeration chamber 21. Is provided. Further, at the lower part of the third cooling duct 43, there are provided a refrigerator compartment suction port 60 for returning the cool air from the refrigerator compartment 21 to the cooler 30, and a refrigerator compartment return air passage 61.

  The vegetable compartment 24 is closed so that there is no inflow of outside air by a door 62 that can open its front opening.

  The door 62 is provided with a pair of left and right plate-like slide rails 63 extending into the vegetable compartment 24, and a lower storage container 64 is placed thereon. The door 62 is opened and closed horizontally by being pulled along the movable direction of the slide rail 63, and the lower storage container 64 is also operated and pulled out. Further, an upper storage container 65 is placed on the lower storage container 64 and is movable simultaneously with the lower storage container 64. At this time, the bottom surface area of the upper storage container 65 is configured to be smaller than the bottom surface area of the lower storage container 64. In this embodiment, the upper storage container 65 and the lower storage container 64 are arranged with a space in the front-rear direction, and a relatively tall food such as a long vegetable such as a PET bottle or Chinese cabbage can be stored in this space. Yes.

  Further, a lid 66 is disposed in the vegetable compartment 24, and when the door 62 is closed, the upper surface opening portion of the upper storage container 65 is closed. Further, when the door 62 is opened, the lid 66 remains in the vegetable compartment 24 and is not pulled out.

  A mist spraying means 67 is disposed in a part of the first cooling duct 29, and the upper end of the mist spraying means 67 is below the upper end of the lower storage container 64. The upper storage container 65 is provided with a plurality of air circulation holes 68 in a part thereof.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 27 dissipates heat in a condenser (not shown), condenses and liquefies, and reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 27 and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 30. By the operation of the cooling fan 31, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 30 evaporates, and the supply of low-temperature cold air with a damper or the like is controlled to perform desired cooling of each chamber. The refrigerant exiting the cooler 30 is sucked into the compressor 27 through the suction pipe.

  When the heat is exchanged with the air in each storage chamber and heat is exchanged with the air in each storage chamber, moisture adheres to the cooler 30 and becomes frost. A signal is periodically output from a control board (not shown), the compressor 27 is stopped, the radiant heater 32 is energized, and the cooler 30 is defrosted.

  Next, the flow of cold air in the refrigerator body 1 will be described. The cool air blown from the cooling fan 31 is distributed downward and upward through the air passage 41 and blown. The cold air distributed downward passes through the first freezer compartment outlet 47 and the second freezer compartment outlet 48 and is discharged into the freezer compartment 25 to exchange heat with the air in the freezer compartment 25. It returns to the cooling chamber 28 through the suction port 49.

  Of the cool air blown from the cooling fan 31, the cool air distributed upward reaches the refrigerating chamber 21 from the refrigerating chamber discharge port 59 via the refrigerating chamber air passage 50 and the refrigerating chamber side of the twin damper 39. Further, a part reaches the switching chamber 22 from the switching chamber discharge port 52 via the switching chamber air passage 51 and the switching chamber side of the twin damper 39. Here, a signal is output from a control board (not shown) to operate the twin damper, the flow of cold air is controlled, the temperature of the refrigerator compartment 21 and the switching chamber 22 is controlled, and the internal temperature is adjusted to a predetermined temperature.

  The cold air blown into the refrigerating room 21 exchanges heat with the air in the refrigerating room 21 and is sucked from the refrigerating room suction port 60 to return to the refrigerating room return passage 61, the refrigerating room return air passage 57, and the refrigerating room. Return to the cooling chamber 28 through the return air passage 42. Here, a part of the return cold air in the refrigerator compartment 21 flows into the vegetable compartment 24 through the vegetable compartment discharge port 45 provided in the middle of the refrigerator compartment return air passage 42, and the lid 66 and the second partition wall 34. And enters the lower storage container 64 from the front portion of the upper storage container 65. The cold air that has once entered the lower storage container 64 passes through the lower storage container 64 from the front portion of the lower storage container 64 again, is sucked from the vegetable room suction port 46, and merges with the return air path 42 for the cold storage room. As can be seen from this series of operations, the vegetable compartment 24 is cooled by using the return cold air from the refrigerator compartment 21.

  The cool air blown into the switching chamber 22 exchanges heat with the air in the switching chamber 22 and returns to the cooling chamber 28 through the switching chamber return air passage 55.

  A lid 66 closes the upper opening of the upper storage container 65 so that the stored food is directly exposed to cold air and prevented from drying. Also, in the space in the front-rear direction of the lower storage container 64 and the upper storage container 65, generally beverages such as PET bottles are often placed, and cold air is directly touched on this part to ensure the cooling speed. Yes.

  From the food stored in the lower storage container 64, moisture evaporates with the passage of time from the time of charging. At this time, the air containing the evaporated water is discharged from the discharge port 45 for the vegetable compartment and flows into the lower storage container 64 through the upper space of the lid 66 along the partial flow of the cold storage container 64 and the upper storage container 64. It flows out of the storage container through the gap on the back surface of the storage container 65.

  At this time, the moisture that has flowed out of the storage container is sucked into the vegetable room suction port 46. As a result, the region from the gap between the upper storage container 65 and the lower storage container 64 to the vegetable room suction port 46 is kept relatively humid. Since the upper end of the mist spraying means 67 is below the upper surface of the lower storage container 64, the mist spraying means 67 is disposed in a relatively humid area. The inside of the mist spraying means 67 is cooled by the air passage 41 at a temperature lower than the ambient temperature, and moisture in the air is condensed inside the mist spraying means 67.

  The water condensed in the mist spraying means 67 is sprayed as mist particles. In the state where the cold air is circulating in the vegetable compartment 24, the sprayed mist particles exit from the vegetable compartment suction port 46. will have to go. However, when the compressor 27 is stopped, or when the refrigerating chamber side of the twin damper 39 is closed, the vegetable compartment 24 is in a natural convection state, and the sprayed mist particles ride on this natural convection to produce vegetables. The inside of the chamber 24 is circulated.

  As a result, the transpiration water from the stored food is returned to the stored food itself again by the mist spraying means 67.

  The mist particles sprayed at this time are, for example, about 0.005 μm to 20 μm and very fine. The mist spraying means 67 may be, for example, one that atomizes and sprays water with ultrasonic waves, one that uses an electrostatic atomization system, one that sprays using a pump system, or the like.

  In this way, the cycle of moisture transpiration from the food, condensation, and mist spraying is repeated. According to the present embodiment, the food that is concerned about the cooling speed, such as a PET bottle, is directly discharged cold. The freshness can be maintained by mist spraying for foods that are cooled down and wilted like leafy vegetables.

  At this time, although not shown, the side wall inside the vegetable compartment 24 is appropriately heated by a heating means such as a heater, so that the mist particles diffused out of the storage container and the transpiration water from the vegetables are not condensed.

  The air circulation hole 68 of the upper storage container 65 plays a role of preventing excessive dew condensation in the upper storage container 65.

  In addition, if the attachment part of the mist spraying means 67 of a 1st cooling duct is set to wall thickness thinner than the circumference | surroundings, the mist spraying means 67 can be cooled more locally.

  In addition, the second partition wall lower plate 36 functions as a cooling plate and cools the inside of the storage container. However, the second partition wall lower plate 36 is configured to be larger than the upper storage container 65 and is formed of a PET bottle or the like. Since there is no obstacle between the container and the beverage, it is possible to cool a beverage such as a PET bottle relatively quickly.

  In addition, even in the condition where the cold air is not discharged from the field room outlet 145 into the vegetable room 124, the field room outlet 145 is closed by the damper, but the vegetable room suction port not provided with the damper. Since 146 is open, the cold air in the vegetable compartment 124 is pulled little by little, so that a flow toward the vegetable room suction port 146 that is the outlet of the cold air to the outside of the storage compartment is generated in the storage compartment. Since the humidity on the suction port 46 side becomes higher in the left-right direction, moisture leaking from the storage container can be efficiently recovered and condensed on the mist spraying means 167, and this condensed water is changed into fine mist, The highly diffusible fine mist can be returned to the storage container again, and the storage container can be sufficiently humidified with the fine mist to maintain the freshness of the vegetables.

  As described above, in the present embodiment, a refrigerator body having a storage room such as a refrigeration room, a switching room, an ice making room, a vegetable room, a freezing room, a door that closes the front opening of the storage room, and the storage A plurality of storage containers that are provided in the room and store foods and are arranged one above the other; a cooler that generates cool air that cools the storage chamber; a cool air outlet that discharges cool air into the storage chamber; and the storage It comprises a cold air suction port for returning cold air that has cooled the room to the cooler, and by disposing a mist spraying means in any of the cold air flow paths between the cold air discharge port and the cold air suction port, By efficiently recovering the moisture in the storage chamber by the mist spraying means and returning it to the storage container again, the storage container can be sufficiently humidified and the freshness of the vegetables can be maintained.

  Further, in the present embodiment, in the cooling duct that is arranged in the storage chamber and includes the cold air discharge port and the cold air suction port, the mist spraying means is connected to the cold air discharge port and the cold air suction port. The mist spraying means is disposed between the cooling mist and cools the mist spraying means to a temperature lower than that in the storage chamber, thereby efficiently condensing and collecting moisture flowing between the cold air discharge port and the cold air suction port. Can do.

  Moreover, in the storage chamber provided with the mist spraying means, the cold air discharge port is disposed above the mist spraying means, and the cold air suction port is disposed below the mist spraying means.

  This makes it possible for cold air to flow downward, and the high-humidity cold air riding on the large amount of cold air flowing in from the cold air discharge port passes through the mist spraying device located below the cold air discharge port. Moisture in it condenses and changes to fine mist with high diffusibility and sprays into the storage chamber. After that, the diffusibility becomes relatively poor and the cold air accumulated in the lower part is discharged from the cold air suction port below the mist spraying device to the outside of the storage room, so that the storage room is filled with fine mist with high diffusibility. The inside of the storage container can be sufficiently humidified with a fine mist to maintain the freshness of the vegetables.

  In the present embodiment, an ultrasonic method is used for the mist spraying means, and fine mist with a particle diameter of several μm can be generated.

  Moreover, in this Embodiment, you may use an electrostatic atomization system for a mist spraying means, and can generate | occur | produce fine mist with a particle diameter of several nanometers to several micrometers.

(Embodiment 5)
FIG. 6 is a longitudinal sectional view of the refrigerator in the fifth embodiment of the present invention. FIG. 7 is a detailed plan view of the refrigerator in the fifth embodiment of the present invention.

  6 and 7, the refrigerator main body 101 is composed of an outer box 118 and an inner box 119. The inside of the refrigerator body 101 is filled with a foam insulation material 120 such as hard foam urethane, and is insulated from the surroundings, and is divided into a plurality of storage rooms. Has been. A refrigeration room 121 as a first storage room is provided in the uppermost stage, and an upper freezing room 122 as a fourth storage room and an ice making room 123 as a fifth storage room are provided side by side below the refrigeration room 121, A lower freezing room 125 as a third storage room is arranged below the upper freezing room 122 and the ice making room 123, and a vegetable room 124 as a second storage room is arranged at the lowermost part.

  The refrigerator compartment 121 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it does not freeze for refrigerated storage. In addition, the vegetable room 124 is often set to 2 ° C. to 7 ° C., which is a temperature setting equal to or slightly higher than that of the refrigerator room 121. The lower the temperature, the longer the freshness of the leafy vegetables can be maintained. The upper freezer compartment 122 and the lower freezer compartment 125 are set in a freezing temperature zone, and are usually set at −22 ° C. to −15 ° C. for frozen storage, but in order to improve the frozen storage state, for example, − It may be set at a low temperature of 30 ° C. or −25 ° C.

  The ice making chamber 123 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 121, and an ice storage container ( (Not shown) is a storage room that is a storage room provided with an independent door with a small frontage provided in parallel with the upper freezer compartment 122, and is often provided with a drawer-type door.

  The top surface portion of the refrigerator body 101 has a stepped recess shape toward the back side of the refrigerator. A machine chamber 126 is formed in the stepped recess portion to form a compressor 127 and a dryer for removing moisture (not shown). The components on the high pressure side of the refrigeration cycle are stored. That is, the machine room 126 in which the compressor 127 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 121. By providing a machine room 126 in the rear region of the uppermost storage room of the refrigerator main body 101 that is difficult to reach and a dead space, the compressor 127 is arranged, so that the refrigerator main body is easy to use for a conventional refrigerator. The space in the machine room at the bottom of 101 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

  In the present embodiment, the matters relating to the main part of the invention described below are a type in which a compressor 127 is arranged by providing a machine room in the rear region of the lowermost storage room of the refrigerator main body 101, which has been conventionally common. It may be applied to other refrigerators.

  A cooling chamber 128 is provided on the back of the upper freezing chamber 122, the ice making chamber 123, and the lower freezing chamber 125. The cooling chamber 128 is insulated by a first cooling duct 129, and the upper freezing chamber 122, the ice making chamber 123, and the lower freezing. It is partitioned from the chamber 125. In the cooling chamber 128, a fin-and-tube type cooler 130 is disposed as a typical example. In the upper space of the cooler 130, cold air cooled by the cooler 130 by a forced convection method is stored in the refrigerator chamber 121. The cooling fan 131 for blowing air to the upper freezing chamber 122, the ice making chamber 123, the vegetable chamber 124, and the lower freezing chamber 125 is disposed, and frost adhering to the cooling device 130 and the cooling fan 131 during cooling is disposed in the lower space of the cooling device 130. A radiant heater 132 made of glass tube is provided as an apparatus for defrosting.

  For example, a sealing material such as a flexible foam is attached to the outer periphery of the first cooling duct 129 so that there is no cold air or water leakage. The first partition wall 133 that partitions the lower freezer compartment 125 and the vegetable compartment 124 is filled with foam heat insulating material 120 such as hard foam urethane.

  The third partition wall 140 that partitions the refrigerator compartment 121, the upper freezer compartment 122, and the ice making chamber 123 is filled with foam heat insulating material 20 such as rigid foamed urethane, and the inner part of the third partition wall 140 Is formed with a heat insulating material 137 such as expanded polystyrene, and a connection air passage 150 is formed through which cool air for cooling the refrigerating chamber 121 is blown, and a damper device for adjusting the flow of the cold air in the refrigerating chamber 121 in the air passage. A single damper 139 is provided.

  A third cooling duct 143 for blowing cool air into the refrigerator compartment 121 is attached to the rear surface of the refrigerator compartment 121, and is attached to the joint surface between the third cooling duct 143 and the third partition wall 140. The seal material is affixed to prevent cold air and water leakage.

  Although the 1st cooling duct 129 and the 3rd cooling duct 143 can be removed, since the 1st partition wall 133 and the 3rd partition wall 140 were attached before the urethane foam of the refrigerator main body 101, It cannot be removed and is firmly joined to the refrigerator main body 101 by the foam heat insulating material 120.

  Further, inside the first cooling duct 129, there are provided a refrigerator compartment 121, an upper freezer compartment 122, an ice making chamber 123, and an air passage 141 for blowing cool air for cooling the lower freezer compartment 125. Further, a return air passage 142 for the refrigerator compartment for blowing the cold air from the refrigerator compartment 121 to the vegetable compartment 124 is provided, and the foam insulation material 120 such as rigid foam urethane that partitions the lower freezer compartment 125 and the vegetable compartment 124 is foam-filled. At the back of the first partition wall 133, a connection air passage 151 formed of a heat insulating material 137 such as expanded polystyrene and a return air passage 142 for the refrigerator compartment are sealed with a sealing material such as a flexible foam. Also, the first cooling duct 129 has an upper freezer discharge port 152 for discharging cool air into the upper freezer chamber 122, an ice making chamber discharge port 154 for discharging cold air into the ice making chamber 123, and a lower freezer chamber 125. A lower freezer compartment outlet 147 for discharging cold air is provided, and a freezer compartment inlet 149 for returning the cool air heat-exchanged in the upper freezer room 122, the ice making room 123, and the lower freezer room 125 to the cooler 130 is provided. ing.

  A vegetable room discharge air path 144 and a vegetable room discharge port 145 are provided on the back of the vegetable room 124, and a vegetable room suction air path 148 is formed on the lower surface of the first partition wall 133, which is the top surface of the vegetable room 124. The vegetable room suction port 146 is provided, and the mist spraying means 167 is provided in the vicinity of the vegetable room suction port 146 and partially embedded in the first partition wall 133. As described above, the mist spraying means 167 is provided in the vegetable compartment 124, and cold air flows from the outside of the vegetable compartment 124 through the vegetable compartment outlet 145, which is a cold air outlet, and the vegetable room suction, which is a cold air inlet. After the cold air flows out of the vegetable compartment 124 through the mouth 146, the outside of the storage container provided in the vegetable compartment 124 is mainly introduced into the vegetable compartment 124 from the outlet 145 for the vegetable compartment. A cold air flow path is formed through which the cold air flows out through the vegetable room suction port 146 and out of the vegetable room 124, and a mist spraying means 167 is provided on the downstream side of the cold air flow path.

  The vegetable compartment 124 is closed so that there is no inflow of outside air by a door 162 that can open its front opening. The door 162 is provided with a pair of left and right plate-like slide rails 163 extending into the vegetable compartment 124, and a lower storage container 164 is placed thereon. The door 162 is opened and closed in the horizontal direction along the movable direction of the slide rail 163, and the lower storage container 164 is also operated and pulled out accordingly. Further, an upper storage container 165 is placed on the lower storage container 164 and is movable simultaneously with the lower storage container 164. At this time, the bottom surface area of the upper storage container 165 is configured to be smaller than the bottom surface area of the lower storage container 164. The upper storage container 165 is provided with a plurality of air circulation holes 168 in a part thereof. In the present embodiment, the upper storage container 165 and the lower storage container 164 are arranged with a space in the front-rear direction so that a relatively tall food such as a long vegetable such as a PET bottle or Chinese cabbage can be stored in the space. Yes.

  Moreover, the lid | cover 166 is arrange | positioned in the vegetable compartment 124, and when the door 162 is closed, the upper surface opening part of the upper stage storage container 165 is obstruct | occluded. Furthermore, when the door 162 is opened, the lid 166 remains in the vegetable compartment 124 and is not pulled out.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 127 dissipates heat in a condenser (not shown), condenses and liquefies, and reaches a capillary tube (not shown). Thereafter, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 127, and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 130. By the operation of the cooling fan 131, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 130 evaporates, and the supply of low-temperature cold air with a damper or the like is controlled to perform desired cooling of each chamber. The refrigerant exiting the cooler 130 is sucked into the compressor 127 through the suction pipe.

  The heat is exchanged with the air in each storage chamber, and moisture is attached to the cooler 130 when the heat is exchanged with the air in each storage chamber to form frost. A signal is periodically output from a control board (not shown), the compressor 127 is stopped, the radiant heater 132 is energized, and the cooler 130 is defrosted.

  Next, the flow of cold air in the refrigerator main body 101 will be described. The cool air blown from the cooling fan 131 is distributed downward and upward through the air passage 141 and blown. The cold air distributed downward is discharged into the freezer compartment 125 from the lower freezer discharge port 147, exchanges heat with the air in the freezer compartment 125, and returns to the cooling chamber 128 through the freezer inlet 149.

  Of the cold air blown from the cooling fan 31, the cold air distributed upward is further subdivided into an upper freezer chamber 122, an ice making chamber 123, and a refrigerator room 121. The upper freezer chamber 122 and the ice making chamber 123 are respectively used for the upper freezer room. After being discharged from the discharge port 152 and the ice making chamber discharge port 154 and exchanging heat, it returns to the cooling chamber 128 through the freezing chamber suction port 149. The cool air distributed for the refrigerator compartment 121 is discharged into the refrigerator compartment 121 through the third cooling duct 143 through the single damper 139 provided in the connection air passage 150. Here, a signal is output from a control board (not shown), the single damper 139 is operated, the flow of cold air is controlled, the temperature of the refrigerator compartment 121 is controlled, and the internal temperature is adjusted to a predetermined temperature.

  The cold air heat-exchanged in the refrigerator compartment 121 passes through the refrigerator compartment return air passage 142, passes through the connection air passage 151 formed in the back of the first partition wall 133, and the vegetable compartment discharge air passage 144. It is discharged into the vegetable compartment 124 through the vegetable compartment discharge port 145. The cold air that has exchanged heat with the air in the vegetable compartment 124 is sucked from the vegetable compartment suction port 146 and returns to the cooling chamber 128 through the vegetable compartment suction air passage 148. As can be seen from this series of operations, the vegetable compartment 124 is cooled by using the return cold air from the refrigerator compartment 121.

  A lid 166 closes the upper opening of the upper storage container 165 provided in the vegetable compartment 24 to prevent the stored food from being directly cooled and dried. In addition, beverages such as PET bottles are generally placed in the space in the front-rear direction of the lower storage container 164 and the upper storage container 165, and cold air is directly touched on this part, so that the cooling speed is secured. ing.

  Water evaporates from the food stored in the lower storage container 164 with the passage of time from the time of charging. At this time, the air containing the evaporated water reaches the mist spraying means 167 disposed in the vicinity of the vegetable room suction port 146 in the flow of the cold air discharged into the vegetable room 124. The inside of the mist spraying means 167 is cooled below the ambient temperature by the lower freezing chamber 125 located above the vegetable compartment 124, and moisture in the air is condensed inside the mist spraying means 167. The condensed water is sprayed in a mist form inside the storage container. As a result, the transpiration water from the stored food is returned to the stored food itself by the mist spraying means 167.

  Thus, in the vegetable room 124, the mist spraying means 167 is provided between the discharge port 145 for the field room and the suction port 146 for the vegetable room, and for the field room that is a cold air discharge port from the outside of the vegetable room 124. Cold air flows in through the discharge port 145 and flows out of the vegetable room 124 through the vegetable room suction port 146, which is a cold air suction port. After flowing in from 145, a cold air flow path is formed in which the cold air flows mainly outside the storage container provided in the vegetable room 124 and flows out of the vegetable room 124 through the vegetable room suction port 146. Mist spraying means 167 is provided on the vegetable room suction port 146 side, which is the downstream side on the distribution path.

  As a result, the amount of the cold air flowing in the downstream side of the cold air flow path in which the cold air flowing into the storage chamber from the discharge port 145 for the field room flows out of the vegetable room 146 through the suction port 146 for the vegetable room is large. In addition, high-humidity cold air leaks out into the cold air flow path, so that the moisture leaking from the storage container can be efficiently collected and condensed in the mist spraying means 167, and this condensed water is turned into fine mist. In other words, the highly diffusible fine mist can be returned to the storage container again, and the inside of the storage container can be sufficiently humidified with the fine mist to maintain the freshness of the vegetables.

  Further, in the state where the refrigerator compartment 121 reaches a desired temperature and the single damper 139 is operated to stop the flow of the cold air, the forced convection of the cold air also disappears in the vegetable compartment 124. At this time, since the space in the front-rear direction of the lower storage container 164 and the upper storage container 165 is not sealed with a lid or the like, it is an open space in the vegetable compartment 124. Therefore, the food stored in the lower storage container 164 The air containing water evaporated from the water moves to the upper part of the vegetable compartment 124 by natural convection. Moisture in the air is condensed in the mist spraying means 167 in which the air containing moisture moved to the upper part of the vegetable compartment 124 is cooled below the ambient temperature. The condensed water is sprayed in a mist form inside the storage container. As a result, the transpiration water from the stored food is returned to the stored food itself by the mist spraying means 167.

  Further, in the state where the refrigerating chamber 121 reaches a desired temperature and the single damper 139 is operated to stop the flow of the cold air, the field outlet 145 is closed by the damper, but the damper is not provided. Since the vegetable room suction port 146 is open, the cool air in the vegetable room 124 is gradually pulled, so that a flow toward the vegetable room suction port 146, which is an outlet of the cold air to the outside of the storage room, is generated in the storage room. Therefore, since the vegetable room suction port 46 side has higher humidity in the left-right direction, moisture leaking from the storage container can be efficiently collected and condensed on the mist spraying means 167, and this condensed water can be finely divided. Instead of mist, fine mist with high diffusibility can be returned to the storage container again, and the storage container can be sufficiently humidified with fine mist to maintain the freshness of the vegetables. Kill.

  As described above, the mist spraying means 167 is provided on the top surface of the vegetable compartment 124 even under the condition that the cold air is not discharged into the vegetable compartment 124 from the field room outlet 145, thereby leaking out of the storage container. The collected moisture can be efficiently collected and condensed on the mist spraying means 167. This condensed water can be changed into fine mist, and the highly diffusible fine mist can be returned to the storage container again. It can be sufficiently humidified with a fine mist to maintain the freshness of vegetables.

  The mist particles sprayed at this time are, for example, about 0.005 μm to 20 μm and very fine. The mist spraying means 167 may be, for example, a device that atomizes water with ultrasonic waves and sprays, a device that uses an electrostatic atomization method, a device that sprays using a pump method, or the like.

  In this way, the cycle of moisture transpiration from the food, condensation, and mist spraying is repeated. According to the present embodiment, the food that is concerned about the cooling speed, such as a PET bottle, is directly discharged cold. In addition, foods that are anxious about wilting, such as leafy vegetables, can be cooled according to the characteristics of the food by maintaining freshness by mist spraying.

  At this time, although not shown, the side wall inside the vegetable compartment 124 is appropriately heated by a heating means such as a heater, so that mist particles diffused out of the storage container and transpiration water from the vegetable are not condensed.

  The air circulation hole 168 of the upper storage container 165 plays a role of preventing excessive dew condensation in the upper storage container 165.

  As described above, in the present embodiment, the refrigerator body having a storage room such as a refrigerator compartment, an upper freezer room, an ice making room, a lower freezer room, a vegetable room, a door that closes the front opening of the storage room, A plurality of storage containers that are provided in the vegetable compartment and store food and are arranged one above the other; a cooler that generates cool air that cools the storage chamber; and a cold air outlet that discharges cool air into the storage chamber; Mist spraying means on the further downstream side in the cold air flow path between the cold air outlet and the cold air inlet of the vegetable compartment, comprising a cold air inlet for returning the cold air cooled in the storage chamber to the cooler By arranging this, the moisture in the vegetable compartment is efficiently collected by the mist spraying means and returned to the storage container again, so that the inside of the storage container can be sufficiently humidified and the freshness of the vegetables can be maintained.

  In the present embodiment, the mist spraying means is partially embedded in the top of the vegetable compartment, and the mist spraying means is placed from the vegetable compartment by the lower freezer compartment. Further, by cooling to a low temperature, the moisture flowing between the cold air outlet and the cold air inlet can be efficiently condensed and recovered.

  In the present embodiment, an ultrasonic method is used for the mist spraying means, fine mist with a particle diameter of several μm can be generated, and a large amount of spray can be handled. Further, the inside of the storage container can be sufficiently humidified with fine mist to maintain the freshness of the vegetables.

  In the present embodiment, an electrostatic atomization method may be used for the mist spraying means, fine mist having a particle diameter of several nm to several μm can be generated, and the sprayed mist has a negative charge. By taking on, the adhesion rate to vegetables etc. can be improved more and the freshness of vegetables can be maintained.

(Embodiment 6)
FIG. 8 is a longitudinal sectional view of a refrigerator in the sixth embodiment of the present invention. FIG. 9 is a detailed plan view of the refrigerator in the sixth embodiment of the present invention.

  8 and 9, the refrigerator main body 101 includes an outer box 118 and an inner box 119, and the inside is filled with a foam insulation material 120 such as hard foam urethane and is insulated from the surroundings, and is divided into a plurality of storage rooms. Has been. A refrigeration room 121 as a first storage room is provided in the uppermost stage, and an upper freezing room 122 as a fourth storage room and an ice making room 123 as a fifth storage room are provided side by side below the refrigeration room 121, A lower freezing room 125 as a third storage room is arranged below the upper freezing room 122 and the ice making room 123, and a vegetable room 124 as a second storage room is arranged at the lowermost part.

  The refrigerator compartment 121 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it does not freeze for refrigerated storage. In addition, the vegetable room 124 is often set to 2 ° C. to 7 ° C., which is a temperature setting equal to or slightly higher than that of the refrigerator room 121. The lower the temperature, the longer the freshness of the leafy vegetables can be maintained. The upper freezer compartment 122 and the lower freezer compartment 125 are set in a freezing temperature zone, and are usually set at −22 ° C. to −15 ° C. for frozen storage, but in order to improve the frozen storage state, for example, − It may be set at a low temperature of 30 ° C. or −25 ° C.

  The ice making chamber 123 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 121, and an ice storage container ( (Not shown) is a storage room that is a storage room provided with an independent door with a small frontage provided in parallel with the upper freezer compartment 122, and is often provided with a drawer-type door.

  The top surface portion of the refrigerator body 101 has a stepped recess shape toward the back side of the refrigerator. A machine chamber 126 is formed in the stepped recess portion to form a compressor 127 and a dryer for removing moisture (not shown). The components on the high pressure side of the refrigeration cycle are stored. That is, the machine room 126 in which the compressor 127 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 121. By providing a machine room 126 in the rear region of the uppermost storage room of the refrigerator main body 101 that is difficult to reach and a dead space, the compressor 127 is arranged, so that the refrigerator main body is easy to use for a conventional refrigerator. The space in the machine room at the bottom of 101 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

  In the present embodiment, the matters relating to the main part of the invention described below are a type in which a compressor 127 is arranged by providing a machine room in the rear region of the lowermost storage room of the refrigerator main body 101, which has been conventionally common. It may be applied to other refrigerators.

  A cooling chamber 128 is provided on the back of the upper freezing chamber 122, the ice making chamber 123, and the lower freezing chamber 125. The cooling chamber 128 is insulated by a first cooling duct 129, and the upper freezing chamber 122, the ice making chamber 123, and the lower freezing. It is partitioned from the chamber 125. In the cooling chamber 128, a fin-and-tube type cooler 130 is disposed as a typical example. In the upper space of the cooler 130, cold air cooled by the cooler 130 by a forced convection method is stored in the refrigerator chamber 121. The cooling fan 131 for blowing air to the upper freezing chamber 122, the ice making chamber 123, the vegetable chamber 124, and the lower freezing chamber 125 is disposed, and frost adhering to the cooling device 130 and the cooling fan 131 during cooling is disposed in the lower space of the cooling device 130. A radiant heater 132 made of glass tube is provided as an apparatus for defrosting.

  For example, a sealing material such as a flexible foam is attached to the outer periphery of the first cooling duct 129 so that there is no cold air or water leakage. The first partition wall 133 that partitions the lower freezer compartment 125 and the vegetable compartment 124 is filled with foam heat insulating material 120 such as hard foam urethane.

  The third partition wall 140 that partitions the refrigerator compartment 121, the upper freezer compartment 122, and the ice making chamber 123 is filled with foam heat insulating material 20 such as rigid foamed urethane, and the inner part of the third partition wall 140 Is formed with a heat insulating material 137 such as expanded polystyrene, and a connection air passage 150 is formed through which cool air for cooling the refrigerating chamber 121 is blown, and a damper device for adjusting the flow of the cold air in the refrigerating chamber 121 in the air passage. A single damper 139 is provided.

  A third cooling duct 143 for blowing cool air into the refrigerator compartment 121 is attached to the rear surface of the refrigerator compartment 121, and is attached to the joint surface between the third cooling duct 143 and the third partition wall 140. The seal material is affixed to prevent cold air and water leakage.

  Although the 1st cooling duct 129 and the 3rd cooling duct 143 can be removed, since the 1st partition wall 133 and the 3rd partition wall 140 were attached before the urethane foam of the refrigerator main body 101, It cannot be removed and is firmly joined to the refrigerator main body 101 by the foam heat insulating material 120.

  Further, inside the first cooling duct 129, there are provided a refrigerator compartment 121, an upper freezer compartment 122, an ice making chamber 123, and an air passage 141 for blowing cool air for cooling the lower freezer compartment 125. Further, a return air passage 142 for the refrigerator compartment for blowing the cold air from the refrigerator compartment 121 to the vegetable compartment 124 is provided, and the foam insulation material 120 such as rigid foam urethane that partitions the lower freezer compartment 125 and the vegetable compartment 124 is foam-filled. At the back of the first partition wall 133, a connection air passage 151 formed of a heat insulating material 137 such as expanded polystyrene and a return air passage 142 for the refrigerator compartment are sealed with a sealing material such as a flexible foam. Also, the first cooling duct 129 has an upper freezer discharge port 152 for discharging cool air into the upper freezer chamber 122, an ice making chamber discharge port 154 for discharging cold air into the ice making chamber 123, and a lower freezer chamber 125. A lower freezer compartment outlet 147 for discharging cold air is provided, and a freezer compartment inlet 149 for returning the cool air heat-exchanged in the upper freezer room 122, the ice making room 123, and the lower freezer room 125 to the cooler 130 is provided. ing.

  A vegetable room discharge air path 144 and a vegetable room discharge port 145 are provided on the back of the vegetable room 124, and a vegetable room suction air path 148 is formed on the lower surface of the first partition wall 133, which is the top surface of the vegetable room 124. And a vegetable room suction port 146 is provided. On the top surface of the vegetable compartment 124, a mist spraying means 167 is embedded in the first partition wall 133 so as to be embedded on the center line 171 in the depth direction of the vegetable compartment 124 or in the depth direction from the center line 171. Yes. As described above, the mist spraying means 167 is provided in the vegetable compartment 124, and cold air flows from the outside of the vegetable compartment 124 through the vegetable compartment outlet 145, which is a cold air outlet, and the vegetable room suction, which is a cold air inlet. After the cold air flows out of the vegetable compartment 124 through the mouth 146, the outside of the storage container provided in the vegetable compartment 124 is mainly introduced into the vegetable compartment 124 from the outlet 145 for the vegetable compartment. A cold air flow path is formed through which the cold air flows out through the vegetable room suction port 146 and out of the vegetable room 124, and a mist spraying means 167 is provided further downstream on the cold air flow path.

  The vegetable compartment 124 is closed so that there is no inflow of outside air by a door 162 that can open its front opening. The door 162 is provided with a pair of left and right plate-like slide rails 163 extending into the vegetable compartment 124, and a lower storage container 164 is placed thereon. The door 162 is opened and closed in the horizontal direction along the movable direction of the slide rail 163, and the lower storage container 164 is also operated and pulled out accordingly. Further, an upper storage container 165 is placed on the lower storage container 164 and is movable simultaneously with the lower storage container 164. At this time, the bottom surface area of the upper storage container 165 is configured to be smaller than the bottom surface area of the lower storage container 164. The upper storage container 165 is provided with a plurality of air circulation holes 168 in a part thereof. In the present embodiment, the upper storage container 165 and the lower storage container 164 are arranged with a space in the front-rear direction so that a relatively tall food such as a long vegetable such as a PET bottle or Chinese cabbage can be stored in the space. Yes.

  Moreover, the lid | cover 166 is arrange | positioned in the vegetable compartment 124, and when the door 162 is closed, the upper surface opening part of the upper stage storage container 165 is obstruct | occluded. Furthermore, when the door 162 is opened, the lid 166 remains in the vegetable compartment 124 and is not pulled out. Further, the lid 166 has a mist spraying port so that the mist sprayed from the mist spraying means 167 flows into the upper storage container 165 into a portion corresponding to a position directly below the mist spraying means 167 attached to the first partition wall 133. 169 is open.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 127 dissipates heat in a condenser (not shown), condenses and liquefies, and reaches a capillary tube (not shown). Thereafter, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 127, and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 130. By the operation of the cooling fan 131, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 130 evaporates, and the supply of low-temperature cold air with a damper or the like is controlled to perform desired cooling of each chamber. The refrigerant exiting the cooler 130 is sucked into the compressor 127 through the suction pipe.

  The heat is exchanged with the air in each storage chamber, and moisture is attached to the cooler 130 when the heat is exchanged with the air in each storage chamber to form frost. A signal is periodically output from a control board (not shown), the compressor 127 is stopped, the radiant heater 132 is energized, and the cooler 130 is defrosted.

  Next, the flow of cold air in the refrigerator main body 101 will be described. The cool air blown from the cooling fan 131 is distributed downward and upward through the air passage 141 and blown. The cold air distributed downward is discharged into the freezer compartment 125 from the lower freezer discharge port 147, exchanges heat with the air in the freezer compartment 125, and returns to the cooling chamber 128 through the freezer inlet 149.

  Of the cold air blown from the cooling fan 31, the cold air distributed upward is further subdivided into an upper freezer chamber 122, an ice making chamber 123, and a refrigerator room 121. The upper freezer chamber 122 and the ice making chamber 123 are respectively used for the upper freezer room. After being discharged from the discharge port 152 and the ice making chamber discharge port 154 and exchanging heat, it returns to the cooling chamber 128 through the freezing chamber suction port 149. The cool air distributed for the refrigerator compartment 121 is discharged into the refrigerator compartment 121 through the third cooling duct 143 through the single damper 139 provided in the connection air passage 150. Here, a signal is output from a control board (not shown), the single damper 139 is operated, the flow of cold air is controlled, the temperature of the refrigerator compartment 121 is controlled, and the internal temperature is adjusted to a predetermined temperature.

  The cold air heat-exchanged in the refrigerator compartment 121 passes through the refrigerator compartment return air passage 142, passes through the connection air passage 151 formed in the back of the first partition wall 133, and the vegetable compartment discharge air passage 144. It is discharged into the vegetable compartment 124 through the vegetable compartment discharge port 145. The cold air that has exchanged heat with the air in the vegetable compartment 124 is sucked from the vegetable compartment suction port 146 and returns to the cooling chamber 128 through the vegetable compartment suction air passage 148. As can be seen from this series of operations, the vegetable compartment 124 is cooled by using the return cold air from the refrigerator compartment 121.

  A lid 166 closes the upper opening of the upper storage container 165 provided in the vegetable compartment 24 to prevent the stored food from being directly cooled and dried. In addition, beverages such as PET bottles are generally placed in the space in the front-rear direction of the lower storage container 164 and the upper storage container 165, and cold air is directly touched on this part, so that the cooling speed is secured. ing.

  Water evaporates from the food stored in the lower storage container 164 with the passage of time from the time of charging. At this time, the air containing the evaporated water reaches the mist spraying means 167 disposed in the vicinity of the vegetable room suction port 146 in the flow of the cold air discharged into the vegetable room 124. The inside of the mist spraying means 167 is cooled below the ambient temperature by the lower freezing chamber 125 located above the vegetable compartment 124, and moisture in the air is condensed inside the mist spraying means 167. The condensed water is sprayed in a mist form from the mist spray port 169 opened in the lid 166 into the storage container. As a result, the transpiration water from the stored food is returned to the stored food itself by the mist spraying means 167.

  Further, the mist spraying means 167 is installed on the center line 171 in the depth direction of the vegetable compartment 124 of the first partition wall 133 which is the top surface of the vegetable compartment 124 or in the back direction from the center line 171, and further on the lid 166 with the mist spray. By opening the mist spraying port 169 at a portion corresponding to the position immediately below the means 167, not only the food stored in the lower storage container 164 but also the water evaporated from the food stored in the upper storage container 165, Condensation occurs on the mist spraying means 167 disposed in the vicinity of the suction opening 146 for the vegetable compartment in the flow of the cold air discharged into the vegetable compartment 124. Further, the mist spraying means 167 is installed on the center line 171 in the depth direction of the vegetable compartment 124 of the first partition wall 133 which is the top surface of the vegetable compartment 124 or in the back direction from the center line 171, so that the upper storage container 165. Moisture flowing into the vegetable compartment 124 from the gap on the back surface of the lower storage container 164 is also condensed on the mist spraying means 167.

  Thus, in the vegetable room 124, the mist spraying means 167 is provided between the discharge port 145 for the field room and the suction port 146 for the vegetable room, and for the field room that is a cold air discharge port from the outside of the vegetable room 124. The cold air flows in through the discharge port 145 and the cold air flows out of the vegetable chamber 124 through the vegetable chamber suction port 146 which is a cold air suction port. After flowing in from 146, a cold air flow path is formed in which the cold air flows mainly outside the storage container provided in the vegetable compartment 124 and flows out of the vegetable compartment 124 through the vegetable compartment suction port 146. A mist spraying means 167 is provided on the vegetable room suction port 146 side, which is further downstream on the distribution path. Further, the mist spraying means 167 is installed on the center line 171 in the depth direction of the vegetable compartment 124 of the first partition wall 133 which is the top surface of the vegetable compartment 124 or in the back direction from the center line 171, and further on the lid 166 with the mist spray. A mist spraying port 169 is opened at a portion corresponding to the position immediately below the means 167.

  As a result, the cold air flow path through which the cold air that has flowed into the storage chamber from the field chamber outlet 145 flows out of the vegetable compartment 146 through the vegetable compartment suction port 146 is relatively large because the amount of cold air that flows is relatively large. The flow rate of the cool air becomes faster, the cool air in the storage container is pulled, and high-humidity cool air leaks into the cool air flow path, and the moisture leaked from the gap between the upper storage container 165 and the lower storage container 164 is efficiently removed. It can be collected and condensed on the mist spraying means 167, and the condensed water can be changed into a fine mist, and the highly diffusible fine mist can be returned to the storage container again. It can be humidified to maintain the freshness of vegetables.

  The mist particles sprayed at this time are, for example, about 0.005 μm to 20 μm and very fine. The mist spraying means 167 may be, for example, a device that atomizes water with ultrasonic waves and sprays, a device that uses an electrostatic atomization method, a device that sprays using a pump method, or the like.

  In this way, the cycle of moisture transpiration from the food, condensation, and mist spraying is repeated. According to the present embodiment, the food that is concerned about the cooling speed, such as a PET bottle, is directly discharged cold. In addition, foods that are anxious about wilting, such as leafy vegetables, can be cooled according to the characteristics of the food by maintaining freshness by mist spraying.

  At this time, although not shown, the side wall inside the vegetable compartment 124 is appropriately heated by a heating means such as a heater, so that mist particles diffused out of the storage container and transpiration water from the vegetable are not condensed.

  The air circulation hole 168 of the upper storage container 165 plays a role of preventing excessive dew condensation in the upper storage container 165.

  As described above, in the present embodiment, the refrigerator body having a storage room such as a refrigerator compartment, an upper freezer room, an ice making room, a lower freezer room, a vegetable room, a door that closes the front opening of the storage room, A plurality of storage containers that are provided in the vegetable compartment and store food and are arranged one above the other; a cooler that generates cool air that cools the storage chamber; and a cold air outlet that discharges cool air into the storage chamber; A cold air inlet that returns the cold air that has cooled the storage chamber to the cooler, and is further downstream in the cold air flow path between the cold air outlet and the cold air inlet of the vegetable compartment, By arranging the mist spraying means on the top of the vegetable room and on the center line in the depth direction of the vegetable room or in the back direction from the center line, moisture in the vegetable room is efficiently collected by the mist spraying means and stored again. Inside the container By returning, sufficiently humidified storing container, it is possible to hold the freshness of vegetables.

  In the present embodiment, the mist spraying means is partially embedded in the top of the vegetable compartment, and the mist spraying means is placed from the vegetable compartment by the lower freezer compartment. Further, by cooling to a low temperature, the moisture flowing between the cold air outlet and the cold air inlet can be efficiently condensed and recovered.

  In the present embodiment, an ultrasonic method is used for the mist spraying means, fine mist with a particle diameter of several μm can be generated, and a large amount of spray can be handled. Further, the inside of the storage container can be sufficiently humidified with fine mist to maintain the freshness of the vegetables.

  In the present embodiment, an electrostatic atomization method may be used for the mist spraying means, fine mist having a particle diameter of several nm to several μm can be generated, and the sprayed mist has a negative charge. By taking on, the adhesion rate to vegetables etc. can be improved more and the freshness of vegetables can be maintained.

  As described above, the refrigerator according to the present invention can sufficiently humidify the inside of the storage container by efficiently collecting and re-spraying moisture from the stored food, and can maintain the freshness of the stored food. It can be applied not only to household refrigerators, but also to commercial refrigerators, food storage, and cold cars.

Front view of the refrigerator in Embodiment 1 of the present invention The longitudinal cross-sectional view of the refrigerator in Embodiment 1 of this invention Longitudinal sectional view of the refrigerator in the second embodiment of the present invention Vertical sectional view of the refrigerator in the third embodiment of the present invention Front view of the refrigerator in Embodiment 3 of the present invention Vertical section of the refrigerator in Embodiment 4 of the present invention Vertical section of the refrigerator in Embodiment 5 of the present invention The detailed top view of the vegetable compartment of the refrigerator in Embodiment 5 of this invention Vertical section of the refrigerator in Embodiment 6 of the present invention The detailed top view of the vegetable compartment of the refrigerator in Embodiment 6 of this invention Side sectional view of a conventional refrigerator Cross-sectional view of main parts showing ultrasonic humidification means of a conventional refrigerator

Explanation of symbols

1 Refrigerator body 21 Refrigerated room (storage room)
22 Switching room (storage room)
23 Ice making room (storage room)
24 Vegetable room (storage room)
24a Center line in the vertical direction of the vegetable room 24b Center line in the horizontal direction of the vegetable room 25 Freezing room (storage room)
29 First cooling duct (cooling duct)
30 Cooler 45 Discharge port for vegetable room (cold air discharge port)
46 Suction port for vegetable room (cold air suction port)
62 Door 64 Lower storage container (storage container)
65 Upper storage container (storage container)
67 Mist spraying means 101 Refrigerator body 118 Outer box 119 Inner box 120 Foam insulation 121 Refrigerating room 122 Upper freezer room 123 Ice making room 124 Vegetable room 125 Lower freezer room 126 Machine room 127 Compressor 128 Cooling room 129 First cooling duct 130 Cooler 131 Cooling fan 132 Radiant heater 133 First partition wall 137 Thermal insulation material such as expanded polystyrene 139 Single damper 140 Third partition wall 141 Air passage 142 Return air passage for refrigerator compartment 143 Third cooling duct 144 For vegetable compartment Discharge air passage 145 Vegetable room discharge port 146 Vegetable room suction port 147 Lower stage freezer room discharge port 148 Vegetable room suction air path 149 Freezer room suction port 152 Upper stage freezer room discharge port 154 Ice making room discharge port 162 Door (Vegetable room)
163 Slide rail 164 Lower storage container (vegetable room)
165 Upper storage container (vegetable room)
166 Lid 167 Mist spray means 168 Air circulation hole 169 Mist spray port 171 Depth direction center line

Claims (5)

  The refrigerator body includes a storage chamber, a door that closes the front opening of the storage chamber, a cooling chamber that includes a cooler that generates cool air for cooling the storage chamber, and cool air in the cooling chamber is discharged into the storage chamber. A cool air discharge port, and a cool air suction port for returning the cool air cooled in the storage chamber to the cooling chamber, and a mist on the downstream side of the cool air flow path between the cool air discharge port and the cool air suction port The refrigerator which arrange | positions a spraying means and the said mist spraying means condenses the water | moisture content in air, and sprays it as a mist in a storage chamber.   2. The refrigerator according to claim 1, wherein the mist spraying unit is disposed on a center line in a vertical direction of the storage chamber or above a center line in a vertical direction of the storage chamber in a storage chamber provided with a mist spraying unit.   The refrigerator according to claim 1 or 2, wherein the mist spraying means is arranged closer to the cold air inlet than the center of the storage chamber in the left-right direction in the storage chamber provided with the mist spraying means.   The refrigerator according to any one of claims 1 to 3, wherein the mist spraying means uses an ultrasonic method.   The refrigerator according to any one of claims 1 to 3, wherein the mist spraying means uses an electrostatic atomization system.