JP2007111085A - Dishwasher and kitchen equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the amount of steam delivered from a body in drying. <P>SOLUTION: This automatic dishwasher constitutes a drying means for drying objects to be washed of a heat pump device to reduce the amount of the steam delivered from the body in the drying. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a dishwasher and a kitchen apparatus for washing and drying dishes.

  A conventional dishwasher will be described with reference to FIG. When washing dishes, the dishes that are the objects to be washed are stored in the dish basket 72 of the washing tank 71, and the detergent is introduced to start the operation. When the operation is started, first, a water supply process for supplying the cleaning tank 71 with a predetermined amount of cleaning water necessary for stabilizing the operation of pressurizing the cleaning water by the cleaning pump 73 is executed. Then, a main washing process is performed in which the washing water pressurized by the washing pump 73 and heated by the heater 76 is jetted from the jet port 74 of the washing nozzle 77 together with the detergent.

  The washing water is jetted from the jet nozzle 74 of the washing nozzle 77 in the vertical direction or obliquely upward. Further, the cleaning nozzle 77 rotates substantially horizontally by this jet reaction force. The tableware is washed by the action of the collision force, detergent, heat, etc. of the washing water sprayed from the washing nozzle 77 rotating in this way.

  When the cleaning water rises to a predetermined temperature and passes through a main cleaning process for a predetermined time, the process enters a draining process in which cleaning water containing dirt washed off from tableware and the like is discharged to the outside by the drain pump 78. Subsequently, a water supply process for newly supplying cleaning water, a rinsing process for spraying cleaning water from the cleaning nozzle 77 in order to rinse the dishes contaminated with detergent and leftovers (soils attached to the dishes are also referred to as leftovers), The draining step is continuously repeated four times to complete the cleaning step.

In particular, in order to perform the drying process of the next process in a short time, the final rinsing process is a heating rinsing process performed while heating the cleaning water by the heater 76. And the heating rinse process is complete | finished when it reaches to about 70 degree | times which heated cleaning water. And the drying process which dries tableware through a drainage process is performed, and operation is completed. In the drying process, air is sent from outside the machine into the washing tank 71 by a blower 79, energized intermittently to the heater 76 to create warm air, and the hot air evaporates water droplets attached to the tableware. The humid air in the cleaning tank 71 (hereinafter referred to as “steam”) is discharged out of the apparatus through the exhaust port 75 (see, for example, Patent Document 1).
JP 2003-339607 A

  However, in the conventional dishwasher, the washing water is heated to a high temperature (about 70 degrees) during the heating rinsing process, so that the washing tank 71 is filled with steam. It is discharged from the exhaust port 75. A hanging cupboard B (hereinafter referred to as furniture) installed above a kitchen cabinet A equipped with a dishwasher, and a cupboard C (hereinafter referred to as furniture) placed in a position facing it As shown in FIGS. 11 and 12, since the surface is condensed and wetted by the steam discharged from the exhaust port 75, the user has to wipe off the condensed water after the operation of the dishwasher. Further, since the surface of the furniture is exposed to high-temperature steam, there are problems such that the surface adhesive peels off, discolors, and deforms due to long-term use.

  In addition, in the case of a built-in type dishwasher, due to moisture intrusion into the kitchen cabinet A, the body of the dishwasher may become humid. There existed a subject that rust generation | occurrence | production of an electronic component etc. and the possibility of a short circuit arise.

  This invention solves the said conventional subject, and it aims at providing the dishwasher which reduced the vapor | steam amount discharged | emitted from a main body significantly.

  In order to solve the above-mentioned conventional problems, the dishwasher of the present invention comprises a heat pump device as a drying means for drying an object to be cleaned.

  The dishwasher of the present invention can reduce the amount of steam discharged from the main body during drying.

  1st invention is equipped with the main body which has the washing tank which accommodates to-be-cleaned object, the washing | cleaning means to wash | clean to-be-washed | cleaned object, and the drying means to dry to-be-washed | cleaned object, The said drying means was comprised with the heat pump apparatus. As a result, it is possible to dehumidify the humid air generated in the cleaning tank, so that it is possible to significantly reduce the discharge of steam to the outside of the main body during drying, and to eliminate the adverse effects caused by the discharged steam. it can.

  In the second invention, since the heat pump device of the first invention is configured integrally with the main body, the heat pump device provided in the main body is warmed by heat generated during the heating and rinsing process. It is possible to prevent a decrease in the capacity of the heat pump device, which sometimes becomes a problem.

  According to a third aspect of the present invention, the cleaning tank of the first or second aspect of the present invention is configured so that the upper part is open and can be pulled out with respect to the main body, so that the heat pump device can be provided integrally with the cleaning tank, Since the circulation path configured between the heat pump apparatus and the cleaning tank can be minimized, a compact heat pump apparatus with reduced heat loss escaping from the circulation path can be obtained.

  According to a fourth invention, in the first or second invention, the lid body has a lid body for opening and closing the opening on the front surface of the cleaning tank, and a tableware basket for storing an object to be cleaned, and the lid body having the opening on the front surface opened. Since the tableware basket can be pulled out freely on the main body, it is possible to eliminate the movable part or the detachable part in the pipe line or the air blowing path of the heat pump device. Heat loss and steam leakage can be prevented.

  According to a fifth invention, the heat pump device according to any one of the first to fourth inventions is arranged below the main body or the washing tub, so that the depth of the washing tub is not shortened, and the tableware of the tableware basket can be obtained. Since the accommodation space can be secured, the number of dishes that can be washed at one time does not decrease.

  According to a sixth aspect of the present invention, the heat pump device according to any one of the first to fourth aspects is arranged at the rear of the main body or the cleaning tank, so that the height of the cleaning tank is not lowered, and the tableware is set up. Therefore, the size of dishes that can be washed is not reduced.

  In a seventh aspect of the present invention, the heat pump device according to any one of the first to sixth aspects includes a compressor that compresses the refrigerant, a radiator that dissipates heat of the refrigerant compressed by the compressor, and the refrigerant There is a throttle means for reducing the pressure, a heat absorber that takes heat away from the refrigerant, and a pipe line connected so that the refrigerant circulates through the compressor, the radiator, the throttle means, and the heat absorber. And a circulation air path leading to the heat absorber through the washing tank, and a blowing means for blowing drying air to the circulation air path, so that the drying performance of the tableware in the washing tank and the humid air in the washing tank Since the dehumidifying performance can be further enhanced, the steam can be prevented from being discharged out of the main body, and the drying time can be shortened.

  In the eighth aspect of the invention, outside air is taken into the washing tank of the seventh invention and the drying air is discharged from the washing tank, so that the temperature of the drying air is made appropriate and the heat to the dishes and the like is increased. Adverse effects can be eliminated.

  According to a ninth aspect of the present invention, there is provided a heat pump device according to any one of the first to sixth aspects, a compressor that compresses a refrigerant, a radiator that dissipates heat of the refrigerant compressed by the compressor, There are throttle means for reducing the pressure, a heat absorber that takes heat away from the refrigerant, and a pipe connected so that the refrigerant circulates through the compressor, the radiator, the throttle means, and the heat absorber. By providing a dry air air passage that exhausts air from the supply and cleaning tank to the outside of the main body and a blowing means that blows the drying air through the dry air air path, the drying air that has heated the outside air is sent to the cleaning tank. The amount of steam discharged out of the main body can be reduced by drying the tableware and dehumidifying the humid air in the washing tank and then exhausting it. In addition, there is no problem that the drying air becomes too hot due to long-time use, and particularly when the outside air temperature is high such as in summer, drying time can be shortened and dehumidification performance can be improved.

  The tenth aspect of the invention is a kitchen apparatus provided with the dishwasher according to any one of the first to ninth aspects of the invention, so that it has a function of drying and dehumidifying the dishes, and in the main body mounted on the kitchen cabinet. The adverse effects of moisture such as structural members, electronic circuits, wiring, and electronic components can be eliminated, and the durability of the main body and kitchen cabinet can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a cross-sectional view of the dishwasher / dryer according to Embodiment 1 of the present invention, FIG. 2 is a partially cutaway perspective view of the dishwasher / dryer, and FIG. 3 is a state in which the washing tub of the dishwasher / dryer is pulled out from the main body. FIG. 4 is a system configuration diagram showing the flow of drying air.

  In FIG. 1 to FIG. 4, the main body 1 of the dishwasher is provided so that a washing tank 2 can be pulled out, and an injection port 4 for injecting washing water pressurized by a washing pump 3 to the bottom of the washing tank 2. A cleaning nozzle 5 (cleaning means) is provided. Above the cleaning nozzle 5, there is provided a tableware basket 6 for storing tableware to be cleaned. In addition, a drainage pump 8 for discharging the cleaning water stored in the cleaning tank 2 to the outside of the main body is provided. A heater 7 for heating the cleaning water is disposed in the lower part of the cleaning tank 2.

  The cleaning tank 2 has an opening 10 on the upper side, and is configured to be drawable with respect to the main body 1 by a guide rail (not shown) formed between the side surface of the cleaning tank 2 and the main body 1. In addition, an inner lid 9 is provided in the upper part of the main body 1 so as to face the opening 10, and moves up and down in conjunction with the drawing operation of the cleaning tank 2 from the main body 1 and the storing operation in the main body 1. When the cleaning tank 2 is stored, the inner lid 9 is lowered to seal the opening 10 of the cleaning tank 2.

  The heat pump device 23 is configured integrally with the rear of the cleaning tank 2, and includes a compressor 11 that compresses the refrigerant, a radiator 12 that radiates heat of the refrigerant compressed by the compressor 11, The throttle means 13 for reducing the pressure, the heat absorber 14 from which the reduced pressure and low pressure refrigerant draws heat from the surroundings, and the refrigerant circulates through the compressor 11, the radiator 12, the throttle means 13 and the heat absorber 14. The pipe 15 is connected, and the refrigerant flows and circulates in the direction of the arrow 24 to realize a heat pump cycle.

  Further, a circulation air passage 18 extending from the heat absorber 14 to the heat absorber 14 via the radiator 12 and the cleaning tank 2 and a blowing means 19 for blowing drying air to the circulation air passage 18 are provided. The circulation air passage 18 is for flowing the air blown by the blower 19 from the heat absorber 14 to the heat radiator 12 in the direction of the arrow 25, and the inlet side of the circulation air passage 18 communicates with the suction port 17, The outlet side communicates with the outlet 16.

  The drying air blown from the blower 19 is heated by the radiator 12 and enters the cleaning tank 2. The air that has passed through the tableware and becomes humid is dehumidified through the heat absorber 14 from the suction port 17, and again. The circulation operation is repeated in which the heat is radiated by the radiator 12 through the circulation air passage 18 and the drying air of low humidity and high temperature is supplied into the cleaning tank 2.

  In addition, in the case of the circulation cycle which does not introduce external air as mentioned above, the subject that drying air becomes high temperature by using for a long time can also be considered. Therefore, as shown in FIG. 5, each of a suction path 31 for taking in outside air to the suction side, a discharge path 32 for discharging drying air to the outside of the cleaning tank 2 on the blow-out side, and each of the suction path 31 and the discharge path 32. Can be opened and closed by the on-off valves 33 and 34, whereby the drying air can be cooled. In this case, outside air is introduced from inside the main body 1.

  Moreover, although hot air is discharged out of the main body 1, when a dishwasher is installed in the kitchen cabinet 61, even if it is discharged directly into the kitchen space through the main body 1, the effect of the present invention is impaired. Absent. Furthermore, even when discharging into the kitchen cabinet 61, the drying air dehumidified through the heat absorber 14 is discharged, so that the kitchen cabinet 61 is not damaged by moisture or the like.

  The operation and action of the above configuration will be described. In the drying process of drying the tableware, when the compressor 11 of the heat pump device 23 is operated, the refrigerant is compressed, and this pressure circulates through the radiator 12, the throttling means 13, and the heat absorber 14. The radiator 12 releases heat of compression of the refrigerant, and the heat absorber 14 absorbs heat by the refrigerant that has been decompressed by the expansion means 13 to a low pressure. At this time, the blower 19 is activated, and the warm air heated by the heat radiation of the radiator 12 is blown into the cleaning tank 2 from the outlet 16. The warm air blown into the cleaning tank 2 takes away moisture when passing through the gap between the dishes, and reaches the heat absorber 14 through the suction port 17 in a wet state. When the wet warm air passes through the heat absorber 14, sensible heat and latent heat are taken away and dehumidified, and separated into low-temperature air and dehumidified water. This low-temperature air is heated again by the radiator 12 and becomes warm air having a low relative humidity.

  In this way, the drying air circulates through the washing tank 2, the circulation air path 18, and the heat pump device 23, and the drying operation of the tableware proceeds by repeating the above operation. For this reason, the above which was discharged | emitted out of the main body does not come out of the main body. Further, the dehumidified water dewed by the heat absorber 14 passes through a drainage passage 22 communicating with the cleaning tank 2 from a drainage port 20 provided in the lower part of the circulation air passage 18, and from a hole 21 provided in the cleaning tank 2. 2 is drained. Then, the water is finally discharged out of the main body 1 by the drain pump 8.

  As described above, according to the present invention, the use of the heat pump device 23 as a drying means for drying tableware makes it possible to dehumidify the humid air generated in the cleaning tank 2, so that steam is discharged outside the main body 1. You can avoid it.

  In addition, when the room temperature of the kitchen is close to 0 degrees, such as in the morning of winter, the refrigerant pumped by the compressor 11 is immediately cooled, so that there is a problem that a normal heat cycle state cannot be reached. However, according to the present invention, since the heat pump device 23 is integrally formed with the main body 1, the heat pump device 23 is also warmed by the heat generated during the heating rinse process. Therefore, it is possible to prevent a decrease in the capacity of the heat pump device 23. The dishwasher also has a course for drying only, but even in this case, the heat generated during the heating and rinsing process cannot be used. Since it is difficult to be affected and the loss of heat generated by the heat pump device can be reduced, it is possible to suppress a decrease in the capacity of the heat pump device.

  Further, when the heat pump device 23 is attached to the washing tank 2 of the drawer type dishwasher / dryer, the heat pump device 23 can be provided integrally with the washing tank 2, and is configured between the heat pump device 23 and the washing tank 2. Since the length of the circulating air passage 18 can be minimized, heat loss escaped from the circulating air passage 18 can be reduced, and a compact heat pump device can be provided.

  In addition, when configuring the heat pump device, the height of the washing tank 2 is lowered because of the restriction on the height of the main body when arranged at the lower part of the main body, and as a result, the height of the cup that can be set in the tableware basket is lowered, Although the diameter of the platter is reduced, according to the configuration of the present invention, the height of the cleaning tank is not lowered by the configuration arranged behind the main body or the cleaning tank. Tableware can be set as before.

  The heat pump device 23 includes a compressor 11 that compresses the refrigerant, a radiator 12 that radiates the heat of the refrigerant compressed by the compressor 11, a throttle unit 13 that reduces the pressure of the refrigerant, and heat generated by the refrigerant. And a pipe 15 connected so that the refrigerant circulates through the compressor 11, the radiator 12, the throttle means 13, and the heat absorber 14, and the radiator 12 and the washing tank are connected to the heat absorber 14. 2 is provided with a circulation air passage 18 leading to the heat absorber 14 and an air blowing means 19 for blowing drying air to the circulation air passage 18, and the drying performance of the tableware in the washing tank 2 and the inside of the washing tank 2. Since the high dehumidifying performance of the humid air can be obtained, the steam discharged out of the main body 1 can be greatly reduced and the drying time can be shortened.

  In addition, by having a kitchen apparatus equipped with a dishwasher comprising a heat pump as a drying means for drying an object to be cleaned, it has a function of drying and dehumidifying dishes and is a structural member in the main body mounted on a kitchen cabinet. In addition, adverse effects due to moisture such as electronic circuits, wiring, and electronic components can be eliminated, and the durability of the main body and kitchen cabinet can be improved.

  In the case of a drawer-type dishwasher, it is advantageous to install the heat pump device in the washing tub and move with the washing tub. In addition to the exterior, it can be mounted on the side wall or the front wall, and can be provided in one place or distributed in two or more places.

(Embodiment 2)
FIG. 7 is a partially cutaway perspective view of a dishwasher according to the second embodiment of the present invention, and FIG. 8 is a system configuration diagram showing the flow of drying air. The same constituent elements as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, a cleaning tank 51 having an opening 50 on the front surface and a tableware basket 52 that accommodates an object to be cleaned are provided, and an openable / closable lid 53 that opens the front opening 50 downward is provided. The tableware basket 52 is configured to be freely drawn out on the opened lid 53. The heat pump device 54 is disposed below the main body 55 or the cleaning tank 51, and is configured to exhaust the humid air in the cleaning tank 51 after dehumidifying it.

  7 and 8, the heat pump device 54 is configured below the cleaning tank 51, and includes a compressor 11 that compresses the refrigerant, a radiator 12 that radiates heat of the refrigerant compressed by the compressor 11, and The throttle means 13 for reducing the pressure of the refrigerant, the heat absorber 14 from which the reduced pressure and low pressure refrigerant takes heat from the surroundings, and the refrigerant circulates through the compressor 11, the radiator 12, the throttle means 13, and the heat absorber 14. Thus, the refrigerant flows in the direction of the arrow 24 and circulates to realize a heat pump cycle. In addition, the air sucked from the outside air introduction port 56 by the blower 57 reaches the heat absorber 14 through the radiator 12 and the cleaning tank 51, and is exhausted from the exhaust port 58 to the outside of the main body 55. Have

  As the dehumidifying operation, the outside air (drying air) introduced by the blower 57 is radiated and heated by the radiator 12, passes through the tableware in the cleaning tank 51, and then passes through the heat absorber 14 through the suction port 17. Then, the one-way dry dehumidifying operation is repeated to be dehumidified and exhausted from the exhaust port 58 to the outside of the main body 55. Although not shown, it is also conceivable to arrange the blower 57 on the radiator 12 side.

  In order to supplement the blowing capacity, it is also conceivable to install a blower 57 on both the radiator 12 side and the heat absorber 14 side as shown in FIG.

  The basic operation and operation of the heat pump device are the same as those in the first embodiment, and the description thereof is omitted. It is desirable that the heat pump device 23 be configured so that the pipe line 15 through which the refrigerant passes is vulnerable to vibration and is fixed. Moreover, if the ventilation path | route which lets air for drying has a movable part, it will leak air from there and will generate | occur | produce a heat loss and will deteriorate the efficiency of drying and dehumidification.

  According to the configuration of the present invention, the relative position between the cleaning tank 51 and the main body 55 is formed in the main body 55 without changing, so that a movable part and a detachable part for connecting the cleaning tank 51 and the heat pump 23 are provided. It is possible to eliminate the reliability of the pipe line and the air flow path, the heat loss of the detachable part, and the steam leakage.

  In addition, when the heat pump device is configured, the depth of the washing tank is low because the depth of the main body is limited when the heat pump device is arranged behind the main body. As a result, the surface area of the tableware basket is reduced, and the number of tableware that can be set is reduced. There was a thing.

  According to the configuration of the present invention, since the heat pump device is arranged below the main body or the cleaning tank, the depth of the cleaning tank is not shortened, so that the surface area of the tableware basket can be reduced. , The tableware score will not be impaired.

  The heat pump device is configured to blow drying air to the cleaning tank and exhaust the air from the cleaning tank to the outside of the main body, so that heated outside air is sent to the cleaning tank to dry the dishes, and the humid air in the cleaning tank The amount of steam discharged out of the main body can be reduced by exhausting after dehumidifying. Also, there is no problem that the drying air becomes too hot due to long-term use, and when the outside air temperature is high such as in summer, the drying time can be shortened and the dehumidifying performance can be improved compared to the circulation system.

  For this reason, when the dishwasher is installed in the kitchen cabinet, the effect of the present invention is not impaired even if the dishwasher is directly discharged to the kitchen space through the main body. Furthermore, even when discharging into the kitchen cabinet, the drying air is discharged, so that the kitchen cabinet is not damaged by moisture or the like.

  The exhaust heat pump apparatus in this embodiment can be implemented by a dishwasher provided with a wash tank so that the washing tank can be pulled out, and a circulation or exhaust type heat pump apparatus, and a washing tank for the dishwasher The selection of the embodiment of the configuration is free.

  As described above, the dishwasher according to the present invention can reduce the amount of steam discharged from the main body during drying, and thus is useful as a dishwasher and the like.

Sectional drawing of the dishwasher in Embodiment 1 of this invention Partial cutaway perspective view of the dishwasher The perspective view of the state where the washing tub of the dishwasher is pulled out from the main body System configuration diagram showing the flow of drying air for the dishwasher System configuration diagram showing the flow of drying air in another example of the dishwasher Kitchen cabinet with the same dishwasher The partially cutaway perspective view of the dishwasher in the 2nd Embodiment of this invention System configuration diagram showing the flow of drying air for the dishwasher System configuration diagram showing the flow of drying air in another example of the dishwasher Cross-sectional view of a conventional dishwasher Exhaust state diagram when drying the dishwasher Exhaust state diagram when drying the dishwasher

Explanation of symbols

1 Body 2 Cleaning tank 5 Cleaning nozzle (cleaning means)
DESCRIPTION OF SYMBOLS 11 Compressor 12 Radiator 13 Throttling means 14 Heat absorber 15 Pipe line 18 Circulating air path 19 Blower means 23 Heat pump apparatus (drying means)
50 Opening 53 Lid 61 Kitchen cabinet

Claims (10)

A dishwasher comprising: a main body having a cleaning tank for storing an object to be cleaned; a cleaning means for cleaning the object to be cleaned; and a drying means for drying the object to be cleaned, wherein the drying means is constituted by a heat pump device. The dishwasher according to claim 1, wherein the heat pump device is integrally formed with the main body. The dishwasher according to claim 1 or 2, wherein the washing tub opens upward and is configured to be drawable with respect to the main body. A lid body that opens and closes an opening on a front surface of a cleaning tank and a tableware basket that accommodates an object to be cleaned, and the tableware basket is configured to be freely drawable on the lid body that has the opening on the front surface. 2. The dishwasher according to 2. The dishwasher according to any one of claims 1 to 4, wherein the heat pump device is disposed below the main body or the washing tank. The dishwasher according to any one of claims 1 to 4, wherein the heat pump device is disposed behind the main body or the washing tank. The heat pump device includes a compressor that compresses the refrigerant, a radiator that radiates heat of the refrigerant compressed by the compressor, a throttle unit that depressurizes the pressure of the refrigerant, a heat absorber that takes heat away from the refrigerant, and a refrigerant Has a pipe line connected so as to circulate through the compressor, the radiator, the throttle means, and the heat absorber, a circulation air path from the heat absorber through the radiator and the washing tank to the heat absorber, and drying air. The dishwasher according to any one of claims 1 to 6, further comprising a blowing means for blowing air to the circulation air passage. The dishwasher according to claim 7, wherein outside air is taken into the washing tank and drying air is discharged from the washing tank. The heat pump device includes a compressor that compresses the refrigerant, a radiator that radiates heat of the refrigerant compressed by the compressor, a throttle unit that depressurizes the pressure of the refrigerant, a heat absorber that takes heat away from the refrigerant, and a refrigerant Has a conduit connected so as to circulate through the compressor, radiator, throttle means, and heat absorber, supplying a drying air to the washing tank and a drying air air passage for exhausting the washing tank out of the main body, The dishwasher of any one of Claims 1-6 which provided the ventilation means which blows the air for drying to the said dry air wind path. The kitchen apparatus provided with the dishwasher of any one of Claims 1-9.