CN105143797A - Refrigerator - Google Patents

Abstract

The present invention comprises: a storage room for storing storage items separated by a heat insulating wall and an insulating door; a storage state estimation unit (23) for estimating the storage state in the storage room; and a tongue door as an electrical functional part (74) The operation control part (22) which controls the output operation. The storage room is divided into storage spaces by one or more storage shelves. The calculation control unit (22) controls the output operation of the flap (74) as an electrical functional component based on the estimation result of the storage space storage situation estimation unit (23), so as to change the cooling amount of the storage space.

Description

Cold storage

technical field

The present invention relates to a refrigerator provided with means for detecting the storage volume of a store room.

Background technique

As a cooling method of a refrigerator for domestic use in recent years, an indirect cooling system in which a fan circulates cool air in the refrigerator is generally used. Such a conventional refrigerator includes a refrigerator temperature sensor for detecting the temperature of the refrigerator and a freezer temperature sensor for detecting the temperature of the freezer in the refrigerator. Moreover, the conventional refrigerator keeps the temperature inside the refrigerator at an appropriate temperature by performing temperature adjustment control based on the detection results output by these sensors.

For example, there is a refrigerator provided with a movable cold air discharge device as a refrigerator that maintains a uniform temperature in the refrigerator (for example, refer to Patent Document 1).

FIG. 19 is a front view of main parts of conventional refrigerator 100 , and FIG. 20 is a waveform diagram schematically showing the behavior of components of conventional refrigerator 100 .

As shown in FIG. 19 , in a conventional refrigerator 100 , a movable cold air discharge device 102 provided in a refrigerator compartment 101 supplies cold air to the left and right to equalize the temperature in the refrigerator.

In addition, as shown in FIG. 20 , in the conventional refrigerator 100 , the temperature detected by the temperature sensor of the freezer compartment rises, and when the temperature rises to a predetermined temperature (ON temperature), the compressor is driven. In addition, at this time, when the temperature detected by the temperature sensor of the refrigerating room is equal to or higher than a predetermined value (opening temperature), the operation of "closing→opening" the damper of the refrigerating room is performed to drive the cooling fan (hereinafter, This operation is referred to as "simultaneous cooling of the refrigerator and freezer a").

Then, when the temperature detected by the temperature sensor of the refrigerating room reaches a predetermined temperature (closed temperature), the operation of "opening and closing" the shutter of the refrigerating room is performed, and the cooling operation is performed only on the side of the freezing room (hereinafter, this action Called "Separate Freezer Cooling b").

Then, when the temperature detected by the temperature sensor of the freezer compartment drops to a predetermined temperature (OFF temperature), the compressor is stopped (hereinafter, this operation is referred to as "cooling stop c").

In the conventional refrigerator 100 , during its normal operation, a series of operations of simultaneously cooling the refrigerator and the freezer a, individually cooling the freezer b, and stopping the cooling c are repeated sequentially.

In addition, when it is a refrigerator 100 with a shutter of the freezer, in the above series of actions, the shutter of the refrigerator is "opened", the shutter of the freezer is "closed", and the drive Operation of the compressor and the cooling fan (hereinafter, this operation is referred to as "individual cooling of the refrigerator compartment").

However, the conventional refrigerator 100 cools the entire interior of the refrigerator regardless of the storage state in the refrigerator, and therefore, cold air is supplied even to parts not stored, resulting in wasteful overcooling.

In addition, employment patterns have changed in recent years, and dual-career families have increased. In addition, opportunities to shop at large supermarkets and the like increase. As a result, the number of people who collectively buy a week's worth of food on holidays increases, and the storage capacity of refrigerator 100 tends to increase compared to the present. In addition, the storage capacity of refrigerator 100 is often very small on the day before collective purchase, and the lifestyle of ordinary households is changing.

The present invention is made in view of the above-mentioned technical problems, and provides a user-friendly refrigerator that ensures freshness retention while improving energy saving.

prior art literature

patent documents

Patent Document 1: (Japanese) Unexamined Patent Publication No. 8-247608

Contents of the invention

The refrigerator according to the present invention includes: a storage room partitioned by a heat insulating wall and an insulating door for storing storage items; a storage state estimation unit for estimating a storage state in the storage room; and an estimation by the storage state estimation unit. a storage unit for the result; and an arithmetic control unit for controlling the output operation of the electrical functional components. The storage room is separated by one or more storage shelves to form a plurality of storage spaces, and the calculation control unit controls the output of the electrical functional components based on the estimation results of the storage status estimation unit, so that the cooling capacity of the storage space Variety.

Accordingly, it is possible to optimally control the output operation of the electrical functional component in accordance with the storage situation in the storage space.

In the refrigerator according to the present invention, the amount of cooling to the storage space is changed based on the estimation result of the storage state estimating unit of the storage space, thereby reducing the amount of cooling to the portion where there is no storage and reducing wasteful cooling operations. , so that the energy-saving performance is improved.

Description of drawings

Fig. 1 is a front view of a refrigerator according to a first embodiment of the present invention.

Fig. 2 is a cross-sectional view taken along line 2-2 of Fig. 1 .

Fig. 3 is an explanatory diagram illustrating the operation of a flap of the refrigerator according to the first embodiment of the present invention.

Fig. 4 is a control block diagram of the refrigerator according to the first embodiment of the present invention.

Fig. 5 is an explanatory diagram for explaining a storage state detection operation of the refrigerator according to the first embodiment of the present invention.

Fig. 6 is a flowchart showing storage state detection control of the refrigerator according to the first embodiment of the present invention.

Fig. 7 is a flowchart showing cooling operation determination control by storage state detection control of the refrigerator according to the first embodiment of the present invention.

8 is a flowchart showing another example of cooling operation determination control using storage state detection control of the refrigerator according to the first embodiment of the present invention.

9 is a flowchart showing still another example of cooling operation determination control using storage state detection control of the refrigerator according to the first embodiment of the present invention.

10 is a waveform diagram schematically showing the temperature behavior of the temperature sensor depending on the presence or absence of stored items in the target storage space according to the first embodiment of the present invention.

11 is a waveform diagram schematically showing another example of the temperature behavior of the temperature sensor due to the presence or absence of stored objects in the target storage space according to the first embodiment of the present invention.

12 is a waveform diagram schematically showing still another example of the temperature behavior of the temperature sensor due to the presence or absence of stored objects in the target storage space according to the first embodiment of the present invention.

13 is a flowchart showing LED control of interior lighting in the refrigerator according to the first embodiment of the present invention.

Fig. 14 is a characteristic diagram showing LED output of interior lighting of the refrigerator according to the first embodiment of the present invention.

Fig. 15 is an explanatory diagram showing a matrix of illuminance in the refrigerator according to the first embodiment of the present invention.

Fig. 16 is a cross-sectional view along line 2-2 in Fig. 1 showing the refrigerator according to the second embodiment of the present invention.

Fig. 17 is a cross-sectional view along line 2-2 in Fig. 1 showing the refrigerator according to the third embodiment of the present invention.

Fig. 18 is a cross-sectional view along line 2-2 in Fig. 1 showing the refrigerator according to the fourth embodiment of the present invention.

Fig. 19 is a front view of the interior of a conventional refrigerator.

Fig. 20 is a waveform diagram schematically showing the temperature behavior of a temperature sensor of a conventional refrigerator.

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by these embodiment.

(first embodiment)

Hereinafter, a first embodiment of the present invention will be described.

Fig. 1 is a front view of refrigerator 50 according to the first embodiment of the present invention.

As shown in FIG. 1 , refrigerator 50 includes refrigerator main body 11 . The main body 11 of the refrigerator is a heat-insulating box, and has an outer box mainly made of steel plates, an inner box formed by resin such as ABS, and a heat-insulating material such as polyurethane provided in the space between the outer box and the inner box. The interior is insulated from the surroundings.

Refrigerator main body 11 is thermally insulated and partitioned into a plurality of storage rooms. A refrigerating room 12 is provided at the uppermost part, and an ice making room 13 and a switching room 14 are arranged horizontally at the lower part of the refrigerating room 12 . Freezer compartment 15 is disposed below ice making compartment 13 and switching compartment 14 , and vegetable compartment 16 is disposed at the lowest portion.

In front of each storage room, a door for separating from outside air is formed as a front opening of refrigerator main body 11 . Near the central part of the refrigerator compartment doors 12a, 12b of the refrigerator compartment 12, there are arranged: an operation unit 17 for setting the temperature inside each compartment, ice making and rapid cooling, etc.; The display unit 91 is an example of a reporting means for reporting various information to the user.

Fig. 2 is a sectional view taken along line 2-2 in Fig. 1 of refrigerator 50 according to the first embodiment of the present invention.

As shown in FIG. 2 , in the refrigerator compartment 12 , a plurality of storage shelves 18 are arranged up and down, and a plurality of storage spaces are partitioned and formed. In addition, some storage shelves 18 are configured to be able to move up and down.

In addition, in the refrigerator compartment 12 are provided: an illumination unit 19 composed of a lamp, a plurality of LEDs, etc.;

Illumination unit 19 is located in front of 1/2 of the depth of the refrigerator and in front of the front end of storage shelf 18 when viewed from the front of the door opening side in refrigerator 50. , are arranged longitudinally on the left wall surface and the right wall surface respectively. In addition, light emitting unit 20 is arranged adjacent to a position close to illuminating unit 19 , and light amount detecting unit 21 is arranged at a rear position in refrigerator compartment 12 .

In addition, the arrangement of the light amount detection unit 21 is not limited to the above example, as long as it is arranged at a position where the light irradiated by the light emitting unit 20 can be received through the storage object 33 (see FIG. 5 ) and the structure in the storeroom. configured anywhere within the repository.

In the upper machine compartment formed with a step in the uppermost rear area of the refrigerator compartment 12, high-pressure-side components of the refrigeration cycle, such as a compressor 30 and a dryer for removing moisture, are accommodated.

The uppermost shelf 18 in the refrigerator compartment 12 is arranged at substantially the same height as the bottom wall of the upper machine compartment. That is, the uppermost storage space in refrigerator compartment 12 is provided with an upper machine room facing the back. Therefore, the depth of the uppermost storage space in refrigerator compartment 12 is set smaller than the depth of the lower storage space.

A cooling room (not shown) for generating cold air is provided on the back side of the freezing room 15 . Dispose in this cooling chamber: cooler; And the cooling fan 31 that sends the cold air as the cooling unit cooled by the cooler to the refrigerator compartment 12, the ice making compartment 13, the switch compartment 14, the freezer compartment 15 and the vegetable compartment 16. (Refer to Figure 4). In addition, in order to remove frost or ice adhering to the cooler or its periphery, a defrosting unit 68 (see FIG. 4 ) composed of a radiation heater, a drain pan, a drain pipe evaporation pan, and the like are provided.

In the refrigerating room 12, the cooling capacity in the refrigerating room 12 is adjusted by the damper 67 that cuts off or opens the cold air sent from the cooler and the flap 74 that switches the flow of the cold air. The living temperature is the lower limit, and the temperature is usually controlled at 1°C to 5°C.

In addition, the cooling amount referred to here is a value depending on the air volume of the cold air and the temperature of the cold air, and the cooling amount is large when the air volume of the cold air is large or when the temperature of the cold air is low.

The temperature of the lowermost vegetable compartment 16 is controlled to be 2° C. to 7° C. equal to or slightly higher than that of the refrigerator compartment 12 .

In addition, the freezer 15 is set in the freezing temperature range, and for cryopreservation, the temperature is usually controlled at -22°C to -15°C, but there are also cases in which the temperature is controlled at - In case of low temperature of 30°C or -25°C.

The ice making room 13 utilizes water delivered from a water storage tank (not shown) in the refrigerating room 12 to make ice from an automatic ice maker (not shown) installed in the upper part of the room, and stores the ice in a lower part of the room. in an ice storage container (not shown).

The switching chamber 14 can be switched to a refrigerating temperature range set at 1°C to 5°C, a vegetable temperature range set at 2°C to 7°C, a freezing temperature range set at -22°C to -15°C, and a Pre-set temperature range between the refrigerator temperature range and the freezer temperature range. Switching room 14 is a storage room provided in parallel with ice making room 13 and provided with an independent door, and often has a drawer-type door.

In addition, in this embodiment, the switching room 14 is made into the storage room which can adjust the temperature in the temperature range including refrigeration and freezing. However, the refrigerating function may be allocated to the refrigerating room 12 and the vegetable room 16, the freezing function may be allocated to the freezing room 15, and the switching room 14 may be specialized as a storage room switched only to a temperature range between refrigerating and freezing. In addition, the switching chamber 14 may also be a storage room fixed in a specific temperature range. For example, as the demand for frozen food increases gradually in recent years, the switching room 14 may be a storage room fixed in freezing.

Fig. 3 is an explanatory diagram for explaining the operation of the flap door 74 of Fig. 2 in the refrigerator according to the first embodiment of the present invention.

The storage space in the refrigerator compartment 12 is divided by one or more shelves 18 . The flap 74 is arranged in the duct 73 across the horizontal projection plane of the shelf 18 which partitions and forms the storage space, and can switch the flow of cool air in the air passage in the duct 73 with a simple structure. In addition, the flap 74 can operate based on the estimation result of the storage situation estimation part, and can adjust the cooling amount to a storage space.

For example, when the storage volume is small, the shutter 74 is closed to reduce the cooling volume of the target storage space, thereby reducing wasteful cooling operations and further improving energy saving performance. On the other hand, when the storage volume is large or increased, the flap door 74 is opened to cool the entire interior of the refrigerator, and the cooling volume is changed instantaneously, thereby improving freshness retention.

In addition, the flap door 74 can not only be fully opened or fully closed, but also can be slightly opened (for example, 30°) according to the storage situation of the target storage space to more finely adjust the cooling amount.

In addition, the duct 73 in this embodiment is arrange|positioned only in the back side of the refrigerator compartment 12. As shown in FIG. However, in order to prevent the temperature of the contents in the door pocket from rising more than necessary, the duct 73 may be extended to the ceiling side of the refrigerator compartment 12 to actively cool the door side.

In addition, a slit shape may also be provided on the side or bottom of the door storage box to promote convection in the door storage box for cooling.

The storage space in this embodiment is divided into two areas of an upper section and a lower section. According to this structure, the user can switch the air passage between the upper layer which is hardest to reach by hand and the lower layer which is more convenient to use. When the storage volume is small, only the lower layer is cooled, thereby realizing energy-saving performance and usability. The best cooling operation with both.

In addition, the arrangement of the flap 74 is not limited to the above-mentioned positions, and a plurality of them may be arranged at any position in the duct 73 as long as it is a position where cool air from the cooler can be supplied.

In addition, the area of the storage space can be divided not only between the upper part and the lower part, but also between the left part and the right part, the front part and the back part, and the cooling capacity of each can be adjusted.

The operation and action of refrigerator 50 configured as described above will be described.

Fig. 4 is a control block diagram of refrigerator 50 according to the first embodiment of the present invention.

As shown in FIG. 4 , refrigerator 50 includes: light quantity detection unit 21, temperature sensor 61, door opening and closing detection unit 62, calculation control unit 22, light emitting unit 20, compressor 30, cooling fan 31, temperature compensation heater 32, Shutter 67 , defroster 68 , flap 74 and display 91 .

In addition, in order to measure the external environment, an external air temperature sensor 63 and an external illuminance sensor 72 may be further provided, but this is not essential.

In addition, the calculation control unit 22 has a storage situation estimation unit 23, a temperature information determination unit 70, a door opening/closing information determination unit 71, a comparison information determination unit 24, a change information determination unit 25, a storage unit 64, an operation start determination unit 65 and The operation end determination unit 66 .

Refrigerator 50 of the present embodiment detects the opening or closing operation by door opening/closing detection unit 62 when the door is opened or closed, and inputs the signal to calculation control unit 22 composed of a microcomputer or the like. Then, the door opening/closing operation is judged by the door opening/closing information judging unit 71 which has received the signal. When the door opening/closing information determination unit 71 determines that the door is closed, the arithmetic control unit 22 sequentially operates the light emitting unit 20 according to a predetermined program.

The light quantity detection unit 21 detects the light quantity in the vicinity, and inputs the information to the arithmetic control unit 22 . Then, the storage status estimating unit 23 that has received the information obtains storage information such as the storage amount and the position of the stored object.

The obtained storage information is compared, for example, by the comparison information determination unit 24 between the storage information before and after the door opening and closing operation, and the comparison information is obtained based on the result.

Next, the comparison information is compared with a predetermined threshold value by the change information determination unit 25 to obtain change information of the storage information such as the storage amount and the position of the storage items.

Then, the operation start determination unit 65 of the arithmetic control unit 22 determines the compressor 30, the cooling fan 31, the temperature compensation heater 32, the shutter 67, and the cooling operation related to the cooling operation based on the change information obtained by the change information determination unit 25. The action of the frost portion 68 and the flap 74 starts the operation. In addition, the operation completion determination unit 66 of the calculation control unit 22 terminates the operation of each of the above-mentioned components.

Here, the operation of the light emitting unit 20 and the light amount detecting unit 21 constituting the storage state detecting unit will be described in detail.

Fig. 5 is a diagram for explaining a storage state detection operation of refrigerator 50 according to the first embodiment of the present invention.

Irradiation light 34 a output from light emitting unit 20 arranged on both left and right wall surfaces of refrigerator 50 irradiates storage items 33 in refrigerator compartment 12 and in refrigerator compartment 12 . In addition, a part of this irradiation light 34a enters the light quantity detection part 21 arrange|positioned in the refrigerator compartment 12. As shown in FIG. FIG. 5 shows a state where storage items 33 are stored in refrigerator compartment 12 . In addition, FIG. 5 has shown the following situation: due to the existence of the storage object 33, there will be an area A where the irradiation light 34a from both the left and right wall surfaces is shielded, an area B where any one of the irradiation light 34a is shielded, and any of the left and right walls. A region C where none of the irradiated light 34a is shielded.

In this case, the light quantity detection part 21 is located in the area|region B where any one of irradiation light 34a is shielded, and detects and outputs the corresponding light quantity. Also, when the amount of stored objects 33 is large, the area A that is all shaded increases, and therefore the amount of light detected by the light amount detection unit 21 decreases.

In addition, when the storage amount is small, the region C in which none of the irradiation light 34a is shielded increases, so that the detected light amount of the light amount detection unit 21 increases.

In this way, the light amount detection unit 21 detects a change in the light amount due to the difference between the presence of the stored object 33 and the amount of the stored object 33 . Then, the detection result is judged by the storage status estimation unit 23 of the calculation control unit 22 using a predetermined threshold value set in advance, whereby the presence or absence or amount of storage objects 33 in the storage room (for example, : more or less) to classify.

In addition, by using the light emitting unit 20 as the lighting unit 19 installed in the refrigerator 50, or using the board of the light emitting unit 20 and the board of the lighting unit 19, a simpler structure can be used without providing a new light source or material. Check the storage state. Next, storage amount detection control using the light emitting unit 20 and the light amount detecting unit 21 will be described.

Fig. 6 is a flowchart showing storage volume detection control of refrigerator 50 according to the first embodiment of the present invention.

In FIG. 6 , the arithmetic control unit 22 starts from the normal main control (step S100 ) and detects the door opening and closing operation (step S101 ). It is confirmed whether the door is in the closed state (step S102), and when the door is in the closed state, storage amount detection control (step S103) is started.

First, the storage room storage information is obtained by the storage status estimation unit 23 (step S104). Then, the comparison information determination unit 24 compares the storage information before and after the door opening and closing operation, before and after a plurality of past door opening and closing operations, or before and after a certain period of time to obtain comparison information (step S105).

Then, change information on the storage situation is obtained by the change information determination unit 25 based on the storage information obtained in step S104 and the comparison information obtained in step S105 (step S106 ). Then, the obtained storage state change information is stored in the storage unit 64 (step S107), and a database for a certain period of time is created.

Then, the calculation control part 22 performs cooling operation control based on this database (step S108).

Next, a specific example of cooling operation control based on the above storage state detection control will be described with reference to FIGS. 7 to 9 .

FIG. 7 is a flowchart showing cooling operation determination control by storage state detection control of refrigerator 50 according to the first embodiment of the present invention.

In FIG. 7 , when the door opening and closing operation is detected (step S111 ) in the main control (step S110 ), storage state detection control is started (step S112 ).

Specifically, as shown in steps S104 to S107 of FIG. 6 , change information on the storage status is obtained based on the storage information and comparison information.

Next, the arithmetic control unit 22 performs a threshold value judgment on the storage state data A obtained from the storage information (step S113 ). When it is determined that the storage status data A is equal to or less than the preset reference storage status data B (step S114, "Yes"), the process proceeds to temperature detection control and acquires temperature data C (step S115). When the temperature data C is less than the preset reference temperature data D (the temperature is low) (step S116, "Yes" ("Yes")), the action of "opening→closing" the tongue door 74 is performed, so that the object The cooling capacity of the storage space decreases (step S117). At this time, the amount of cooling can be reduced by reducing the rotational speed of the compressor 30 and the cooling fan 31 and reducing the opening degree of the shutter 67 of the refrigerator compartment 12 at the same time.

On the other hand, when it is determined that the storage situation data A exceeds the preset reference storage situation data B or less (step S114, "No" ("NO")), the shutter 74 is "closed→opened". Action to cool the entire interior of the store (step S118). In addition, when the temperature data C is greater than the preset reference temperature data D (high temperature) (step S116, "No" ("NO")), the action of "closing→opening" the flap 74 is also performed, The entire storage is cooled (step S118). At this time, the cooling capacity can be increased by simultaneously increasing the rotational speed of the compressor 30 and the cooling fan 31 and increasing the opening degree of the shutter 67 of the refrigerator compartment 12 .

In addition, regarding temperature detection control (step S115), it is preferable to arrange|position the temperature sensor 61 for every storage space partitioned. For example, in the present embodiment, the temperature sensor 61 is disposed on the upper layer, and the cooling control is determined based on the detection result. Thereby, it is possible to reliably detect a temperature rise in the storage space of the object, and further improve energy-saving performance and freshness preservation of food.

8 is a flowchart showing another example of cooling operation determination control using storage state detection control of the refrigerator according to the first embodiment of the present invention. Only the parts different from those in Fig. 7 will be described in detail.

In FIG. 8, when the door opening and closing operation (step S121) is detected in the main control (step S120), the storage state change data E obtained from the storage state change information based on the storage state detection control (step S122) , threshold value determination is performed (step S123). When it is determined that the storage state change data E is equal to or less than the preset reference storage state change data F (step S124, "Yes"), the process proceeds to temperature detection control (step S124). Then, when the temperature in the refrigerator is low (step S126, "Yes" ("Yes")), the operation of "opening→closing" the flap door 74 is performed to reduce the amount of cooling to the storage space of the object (step S127 ). On the other hand, when it is determined that the storage situation change data E exceeds the preset reference storage situation change data F (step S124, "No" ("NO")), the shutter 74 is "closed→opened". The action of cooling the whole inside of the storehouse (step S128). In addition, when the temperature inside the refrigerator is high (step S126, "NO"), the operation of "closing→opening" the shutter 74 is also performed to cool the entire interior of the refrigerator (step S128). In this way, the presence or absence of stored items and the amount of stored items can be determined based on the change information of the storage status, and the cooling operation can be controlled.

9 is a flowchart showing still another example of cooling operation determination control using storage state detection control of the refrigerator according to the first embodiment of the present invention. Only the parts different from those in Fig. 7 will be described in detail.

In FIG. 9 , when the door opening/closing operation is detected (step S131 ) in the main control (step S130 ), storage status data G obtained from storage information is acquired by storage status detection control (step S132 ). Next, the storage unit 64 acquires reference storage status data H from past storage information (step S133 ), and performs threshold value determination on the storage status data G (step S134 ). When it is determined that the storage state data G is equal to or less than the reference storage state data H (step S135, "Yes"), the process proceeds to temperature detection control (step S136). Then, when the temperature in the refrigerator is low (step S137, "Yes" ("Yes")), the operation of "opening→closing" the flap door 74 is performed to reduce the amount of cooling to the storage space of the object (step S138 ). On the other hand, when it is determined that the storage status data G exceeds the preset reference storage status data H (S135, "No" ("NO")), the operation of "closing→opening" the shutter 74 is performed, The entire storage is cooled (step S139). In addition, when the temperature inside the refrigerator is high (step S137, "NO"), the operation of "closing→opening" the shutter 74 is also performed to cool the entire refrigerator (step S139). In this way, based on the past data of storage information obtained by the storage unit 64 , the presence or absence of stored items and the amount of stored items can be determined, and the cooling operation can be controlled. Next, the temperature behavior of the temperature sensor 61 depending on the presence or absence of the stored objects 33 in the target storage space will be described in detail using FIGS. 10 to 12 . In addition, FIGS. 10 to 12 show the temperature behavior of the temperature sensor 61 and the operation of each electrical functional component when storing objects are put in at different timings when the door is opened and closed. Fig. 10 is a case where storage objects 33 are placed in the target space during simultaneous cooling a of the refrigerator compartment and the freezer compartment. FIG. 11 shows a case where storage objects 33 are placed in the target space during individual cooling b of the freezer compartment. In addition, FIG. 12 is a case where storage object 33 is put in the object space at the time of cooling stop c.

As shown in FIGS. 10 to 12 , the conventional refrigerator (dotted line) cools the entire interior of the refrigerator regardless of whether there are storage objects 33 or not. Therefore, since the parts without storage objects 33 are also cooled, supercooling occurs. waste.

In FIG. 10 , refrigerator 50 according to the present embodiment detects the storage state after the door opening and closing operation. When it is determined that there are no stored objects 33 or that there are few stored objects 33, and the temperature of the target storage space is below a predetermined value, the operation of "opening and closing" the flap 74 is performed to reduce the amount of cooling to the target storage space. reduce. At this time, the amount of cooling can be reduced by reducing the rotational speed of the compressor 30 and the cooling fan 31 and reducing the opening degree of the shutter 67 of the refrigerator compartment 12 at the same time. Thereby, useless cooling operation is reduced, and energy-saving performance is further improved.

Then, when the refrigerating room and the freezing room are simultaneously cooled a, the storage object 33 is put into the target space, and when it is judged that there is a storage object 33 or there are many storage objects 33, the tongue door 74 is "closed → "Open" action increases the amount of cooling to the target space and cools the entire interior of the warehouse. Thereby, even when sufficient cooling is required, such as when the stored objects 33 are put in, the cooling amount can be changed instantaneously, thereby improving freshness retention. At this time, the cooling capacity can be increased by simultaneously increasing the rotational speed of the compressor 30 and the cooling fan 31 and increasing the opening degree of the shutter 67 of the refrigerator compartment 12 .

In addition, in the refrigerator 50 having the shutter 67 of the freezer compartment 15, the shutter of the freezer compartment 15 is immediately moved when it is determined that there are "exists" or "many" storage objects 33 in the target storage space. 67 "open→close" control. Thereby, warm air from the target space in which stored objects 33 are placed can be prevented from flowing into freezer compartment 15 . After a certain period of time, or when the temperature detected by the temperature sensor 61 of the refrigerating chamber 12 is below a certain predetermined temperature, or the temperature detected by the temperature sensor 61 of the freezing chamber 15 is above a certain predetermined temperature, the freezing chamber is activated. The action of the flashboard 67 of 15 " closing→opening ".

In addition, in FIG. 11 , when the freezer compartment is individually cooled b, storage objects 33 are placed in the target space, and when it is determined that there are storage objects 33 or there are “many” storage objects 33, firstly, the refrigeration is performed. The shutter 67 of the chamber 12 "close→open" action. Then, the operation of "closing→opening" the shutter 74 is performed to increase the amount of cooling to the target space and cool the entire interior of the storage. At this time, the cooling amount may be increased by simultaneously increasing the rotation speed of the compressor 30 and increasing the rotation speed of the cooling fan 31 .

In addition, when it is determined that there are storage objects 33 or there are many storage objects 33, when the temperature detected by the temperature sensor 61 of the freezer compartment 15 is higher than a certain predetermined temperature (for example, ON temperature), the The shutter 67 and the tongue door 74 of the refrigerator compartment 12 remain "closed", and the cooling of the freezer compartment 15 is given priority. Then, when reaching another predetermined temperature (for example, OFF temperature), the shutter 67 of the refrigerator compartment 12 is "closed→opened", and then the shutter 74 is "closed→opened". , increasing the amount of cooling to the object's space.

In addition, in FIG. 12 , when the cooling is stopped c, storage objects 33 are placed in the target space, and when it is determined that there are storage objects 33 or there are many storage objects 33, if the compressor 30 is stopped, it must be After a period of time (for example, 10 minutes), the compressor 30 is driven at high rotation regardless of the temperature detected by the temperature sensor 61 . Then, the shutter 67 of the refrigerating compartment 12 is "closed→opened", and the shutter 74 is "closed→opened". Thereby, while ensuring the startability of the compressor 30, the stored goods 33 put in the refrigerator compartment 12 can be rapidly cooled, and therefore freshness preservation property can be improved.

In addition, in the refrigerator 50 having the shutter 67 of the freezer compartment 15, when the compressor 30 is stopped, the shutter 67 of the refrigerator compartment 12 is "opened", and the shutter 67 of the freezer compartment 15 is opened. "Closed", using the frost attached to the cooler for cooling. At this time, when it is determined that "there is" a stored item or that there is "a lot of stored items", the shutter 67 of the freezer compartment 15 is kept "closed". Then, it is possible to start the compressor 30 while ensuring the startability of the compressor 30, and to quickly cool the contents 33 put in the refrigerator compartment 12 by performing the independent operation of the refrigerator compartment 12, so that the freshness preservation property can be improved. . However, when the temperature detected by the temperature sensor 61 of the freezer compartment 15 reaches a predetermined temperature or higher, the shutter 67 of the freezer compartment 15 is "closed→opened".

In addition, in the refrigerator 50 having the shutter 67 of the freezer compartment 15, when the refrigerator compartment is independently cooled, the storage 33 is placed in the target space, and when it is determined that there is a storage 33 or there are many storage 33 Under the situation, make the shutter 67 of freezer compartment 15 keep " closing " constant. Thereby, warm air from the target space in which stored objects 33 are placed can be prevented from flowing into freezer compartment 15 . In addition, since the contents 33 put in the refrigerator compartment 12 can be cooled rapidly by performing the operation of "closing→opening" the flap 74, the freshness preservation property can be improved. After a certain period of time, or when the temperature detected by the temperature sensor 61 of the refrigerating chamber 12 reaches below a certain predetermined temperature, or when the temperature detected by the temperature sensor 61 of the freezing chamber 15 reaches above a certain predetermined temperature, the freezing chamber is activated. The control of the flashboard 67 of 15 " closing→opening ".

Through the above operations, the output operation of the electrical functional components is optimally controlled according to the storage situation in the storage space, thereby reducing wasteful cooling operations and achieving a refrigerator with high energy-saving performance.

In addition, regarding the automatic rapid cooling and automatic power-saving cooling operation of refrigerator 50 according to the present embodiment, it is also possible to give priority to functions based on the user's will, such as changing the interior temperature setting or the rapid freezing function.

In addition, in the present embodiment, an example is given in which the storage state detection unit is installed in the refrigerator compartment 12, but the present invention is not limited to this example, and may be installed in the refrigerator compartment 12, the ice making compartment 13, the switch compartment 14, At least one of the freezer compartment 15 and the vegetable compartment 16.

In addition, the present embodiment is not necessarily limited to the structure of the refrigerator 50 shown in FIG. 2 , and it can also be applied to a conventional conventional machine room in which a compressor is arranged in the rear area of the storage room at the bottom of the heat insulation box. 30 types of refrigerators.

In addition, in the above description, the configuration including the light emitting unit 20 and the light amount detection unit 21 has been described as the storage status detection unit, but the storage status detection unit of the present invention is not limited thereto. For example, it is also possible to use means for detecting the storage state using the change rate of the temperature change in the refrigerator, the current change during the operation of the cooling function, and the like.

In addition, the display unit 91 serving as a recognition unit displayed on the outer surfaces of the refrigerator compartment doors 12a and 12b provided on the front side of the refrigerator compartment 12 as a storage compartment equipped with the light amount detection unit 21 can notify the user of the refrigerating compartment 12. The state of the contents inside.

The user can confirm the display on the display unit 91 as the cognition unit, open the refrigerator compartment doors 12a, 12b, and place the food on the storage 33 displayed as "no" or "short storage 33" without hesitation. The storage space on the uppermost floor of " is stored on the shelf 18a, and the refrigerating chamber doors 12a, 12b are closed quickly.

In addition, assume a case where storage objects 33 as food are stored on the storage shelf 18a in front of a cold air outlet (not shown), and a case where storage objects 33 are full. In such a case, when the light quantity detected by the light quantity detection unit 21 near the cold air discharge port is lower than a predetermined value, the display unit 91 located on the outer surface of the refrigerator compartment doors 12a, 12b displays the The storage space is full and it becomes a power-increasing operation.

Here, when the storage objects 33 are full or the storage objects 33 are stored in the vicinity of the cool air outlet (not shown), the storage objects 33 become the ventilation resistance of the cool air, and the cool air circulation per unit time The amount decreases, and the time it takes to cool down becomes longer. In addition, when the cold air circulation volume decreases, the air volume of the evaporator decreases, and the heat exchange volume decreases. Therefore, the evaporation temperature will decrease. Due to the expansion of the high and low pressure differential pressure of the refrigeration cycle, the compressor input will also increase.

To maintain the cooling time, it is necessary to increase the rotation speed of a fan (not shown) that circulates cool air, or to increase the rotation of the compressor 30, which is also a factor for increasing power.

Therefore, by notifying the user of the trend of increasing power usage, and prompting the user to arrange the storage items 33 optimally, energy saving can be realized in practical use of the refrigerator 50 . As a result, the consumer can be provided with the refrigerator 50 which realized further energy saving, and can contribute to reduction of _CO2 .

In addition, the recognition unit is not limited to the display unit 91 , and a member that draws the user's attention by sound, for example, may be employed. The storage status information may be displayed on the display unit 91 using an indicator. Thereby, usability can be improved.

In particular, the configuration of the present embodiment is more effective than conventional ones when it is possible to store a variety of foods like a household refrigerator.

As mentioned above, the cooling operation control based on the storage state detection result was demonstrated, Next, the interior lighting control matched with the storage state in a warehouse is demonstrated.

Fig. 13 is a flowchart of LED control of interior lighting in the refrigerator according to the first embodiment of the present invention. Fig. 14 is an LED output characteristic diagram of interior lighting of the refrigerator according to the first embodiment of the present invention. Fig. 15 is a model diagram of the interior illuminance of the refrigerator according to the first embodiment of the present invention.

The brightness in the storage room changes according to the storage conditions such as the storage volume and the storage place. Therefore, by changing the output setting value of the light emitting unit 20 near the upper floor with a small storage volume and the lower floor with a large storage volume, etc., the brightness can be adjusted according to the storage space. According to the storage situation, the lighting control in the warehouse can be changed, and the glare at night can be reduced to achieve the best visibility.

Hereinafter, the operation and function thereof will be described using FIGS. 13 to 15 .

First, the upper storage volume obtained by the storage status detection control in the flow of FIG. 6 above is judged using the division range specified by the storage status estimation unit 23, and classified into "more", "less", and "absent". These three areas (step S140). When classified as "many", the output settings of the light emitting units 20a, 20b provided on the upper side of the lighting unit 19 (hereinafter referred to as upper side LEDs) are stored in the storage unit 64 as 100%. Similarly, when classified as "low", the output settings of the light emitting units 20a and 20b are stored in the storage unit 64 as 50%. When classified as "none", the output setting of the light emitting units 20a and 20b is stored as 20% in the storage unit 64 (step S141).

Next, the detected lower storage volume is classified into the three areas of "more", "less" and "absence" similarly to the upper storage volume (step S142). When classified as "many", the output settings of the light emitting units 20c, 20d (hereinafter referred to as lower side LEDs) provided on the lower side of the lighting unit 19 are stored in the storage unit 64 as 100%. Similarly, when classified as "low", the output settings of the light emitting units 20c and 20d are stored in the storage unit 64 as 50%. When classified as "none", the output settings of the light emitting units 20c and 20d are stored as 20% in the storage unit 64 (step S143).

Next, the illuminance of the surrounding environment in which the refrigerator main body 11 is installed is measured by the outdoor illuminance sensor 72 shown in FIG. 4 (step S144). Next, the ambient illuminance is compared with a predetermined value, and when the ambient illuminance is greater than the predetermined value (for example, 5 lux or more), it is determined that the activity is bright, that is, during the daytime, and the previously determined LED output setting value is not changed. change and maintain. In addition, when the ambient illuminance is less than a predetermined value (for example, less than 5 lux), it is determined that it is dark, that is, when going to bed at night, the LED output setting value is changed to a setting that reduces the output by 0.5 times and stored in the memory. section 64 (step S145).

Next, the door state of the refrigerator compartment door 12a or 12b is judged by the door opening/closing detection part 62 in the state which held the LED output setting value finally determined as mentioned above (step S146). Then, in the case of opening the door, the output setting stored in the storage unit 64 is instructed to the lighting unit 19 so that each LED is lit and illuminated in the warehouse. The LED goes out to stand by until the door is opened (step S147). As these concrete dimming means, there are duty control of LED energization (pulse variable), variable forward current of LED, variable number of LEDs to be lit, etc., and dimming can be realized by performing these.

In addition, in the description of the lighting control for dimming the interior lighting up to now, the storage volume is divided into three areas of "more", "less" and "no", and the LED output setting is divided into three areas: The three areas of "100%", "50%", and "20%" can be finely controlled by classifying them more finely or making a linear relationship. That is, as shown in FIG. 14 , the LED output can be increased in proportion to the increase in storage capacity. Also, when the ambient illuminance is dark, the linear slope when it is bright can be reduced (here, half). The content of controlling the interior lighting by dimming the LEDs as described above is summarized from the user's point of view as a model diagram shown in FIG. 15 .

In FIG. 15 , when the ambient illuminance is "bright", the refrigerator is being actively used. At this time, when the storage capacity is large, it is difficult to see the interior of the refrigerator, so the interior lighting is turned on most "brightly". Conversely, when the storage volume is "small", it is easy to see the interior of the storage, so the lighting is turned on "slightly darker".

Next, when the surrounding illumination is "dark", it is the case when the refrigerator is not used much when going to bed. To reduce glare, even if the storage volume is large, the lighting in the storage should be "slightly dark", and when the storage volume is small, further "dark". ’ to light up the lights.

In addition, in this embodiment, the dimming of the interior lighting in two areas of the upper floor and the lower floor has been described. The detection of the storage capacity and the dimming of the lighting in the warehouse can also be carried out in the same number of areas.

As described above, in the present embodiment, the storage state (storage area and storage amount) in the storage is detected by the storage state estimation unit 23 . Furthermore, it is determined whether it is daytime or nighttime based on the illuminance around the refrigerator main body 11 measured by the outdoor illuminance sensor 72, and the light-emitting part 20 is adjusted according to the corresponding state. Therefore, it is possible to reduce the irradiation of the part with few stored items. And the full lighting state at night, etc., so that the power consumption is reduced. In addition, these light adjustments are not only performed automatically, but especially at night, the glare is reduced and the visibility is improved, so that the user's convenience and satisfaction can be particularly improved.

(second embodiment)

Next, a refrigerator according to a second embodiment of the present invention will be described.

In this embodiment, only the parts different from the configuration and technical idea described in detail in the first embodiment will be described in detail. In addition, it is considered that the same configuration as that described in detail in the first embodiment and a portion that does not cause problems even if the same technical idea is applied can be applied in combination with this embodiment, and detailed description is omitted.

Fig. 16 is a cross-sectional view taken along line 2-2 in Fig. 1 of the refrigerator according to the second embodiment of the present invention. As shown in FIG. 16 , in refrigerator 50 according to the second embodiment, a storage state detection unit composed of a transmission unit 81 and a reception unit 82 for detecting a storage state in a target space is provided in refrigerator compartment 12 .

Transmitting unit 81 is located in front of 1/2 of the depth dimension in the refrigerator when viewed from the front of the door opening side in refrigerator 50, and is located in the front (near) position than the front end of the storage shelf 18a of the object. way, arranged on the top surface in the refrigerator compartment 12. Moreover, receiving part 82 is arrange|positioned in the rear position in the refrigerator compartment 12. As shown in FIG.

In addition, the arrangement of the transmitting unit 81 and the receiving unit 82 is not limited to the above example, as long as the receiving unit 82 can receive the transmitted item irradiated by the transmitting unit 81 via the stored object 33 and the structure in the warehouse. Can be configured anywhere within the library.

In addition, the transmitting object irradiated by the transmitting unit 81 may be light, infrared rays, ultrasonic waves, or the like.

For example, when the storage situation estimating unit (not shown) judges that there is no storage 33 or that there are few storages 33 based on the detection result of the receiving unit 82, the shutter 74" shown in FIG. The action of "open → close" reduces the amount of cooling to the target space. Thereby, useless cooling operation can be reduced, and energy-saving performance can be further improved.

In addition, when the storage object 33 is put into the storage space of the object, and the detection result of the receiving unit 82 determines that there is a storage object 33 or there are many storage objects 33, the tongue door 74" shown in FIG. The action of "close → open" increases the cooling amount to the target space. Thereby, since the stored goods 33 put into the refrigerator compartment 12 can be cooled rapidly, freshness preservation property can be improved.

Through the above operations, in this embodiment, the presence or absence of storage objects 33 in the target storage space is detected with high precision, and based on the detection result, the output of the electrical functional components is optimally controlled in accordance with the storage conditions of the storage space. action. Accordingly, it is possible to provide a refrigerator that reduces useless cooling operations and achieves high energy-saving performance.

(third embodiment)

Next, a refrigerator according to a third embodiment of the present invention will be described.

In this embodiment, only the parts different from the configuration and technical idea described in detail in the first embodiment will be described in detail. In addition, it is considered that the same configuration as that described in detail in the first embodiment and a portion that does not cause problems even if the same technical idea is applied can be applied in combination with this embodiment, and detailed description is omitted.

Fig. 17 is a cross-sectional view along line 2-2 in Fig. 1 of the refrigerator according to the third embodiment of the present invention. As shown in FIG. 17 , in refrigerator 50 according to the third embodiment, a storage state detection unit integrally formed of a transmission unit 83 and a reception unit 84 is provided in refrigerator compartment 12 to detect the storage state of a target space.

The transmitting part 83 and the receiving part 84 are located in front of 1/2 of the depth dimension in the refrigerator when viewed from the front of the door opening side in the refrigerator 50, and in front of the front end of the storage shelf 18a. In terms of positions, they are arranged adjacent to each other on the top surface in the refrigerator compartment 12 .

In addition, the arrangement of the transmitting unit 83 and the receiving unit 84 is not limited to the above-mentioned example, as long as the receiving unit 84 is arranged at a position where the transmitted item irradiated by the transmitting unit 83 can be received through the stored object 33 and the structure in the warehouse. Can be configured anywhere within the library.

In addition, the transmitting matter irradiated by the transmitting unit 83 may be light, infrared rays, ultrasonic waves, or the like.

For example, when infrared rays are used as the transmission object irradiated from the transmission unit 83 , the temperature of the stored object 33 can also be detected by making the reception unit 84 an infrared sensor. When the arithmetic control unit (not shown) determines that the temperature of the storage object 33 is low and has been sufficiently cooled based on the detection result of the receiving unit 84, the operation of “opening→closing” the flap door 74 shown in FIG. 3 is performed. , to reduce the amount of cooling to the target's storage space. Thereby, useless cooling operation can be reduced, and energy-saving performance can be further improved.

In addition, when the storage object 33 is put into the object space, and the temperature of the storage object 33 is determined to be high according to the detection result of the receiving unit 84, the operation of "closing→opening" the flap door 74 shown in FIG. The cooldown of the object's storage space is increased. Thereby, since the stored goods 33 put into the refrigerator compartment 12 can be cooled rapidly, freshness preservation property can be improved.

In addition, when ultrasonic waves are used as the transmission object irradiated by the transmission part 83, the presence or absence of a storage object can be estimated by making the reception part 84 into an ultrasonic sensor. When it is determined that there is no storage item 33 based on the detection result of the receiving unit 84, the operation of "opening→closing" the flap 74 shown in FIG. 3 is performed to reduce the amount of cooling to the target space. Thereby, useless cooling operation can be reduced, and energy-saving performance can be further improved.

In addition, when the storage object 33 is put into the storage space of the object, and the storage object 33 is determined based on the detection result of the receiving unit 84, the action of "closing→opening" the tongue door 74 shown in FIG. Object space cooldown increased. Thereby, since the stored goods 33 put into the refrigerator compartment 12 can be cooled rapidly, freshness preservation property can be improved.

Through the above operation, by arranging the transmitting unit 83 and the receiving unit 84 adjacent to each other, the presence or absence and the temperature of the storage object 33 in the target storage space can be detected with high accuracy with a simpler configuration. Based on the detection result, the output operation of the electrical functional components is optimally controlled in accordance with the storage situation in the storage space, thereby providing a refrigerator that reduces wasteful cooling operations and achieves high energy-saving performance.

(fourth embodiment)

Next, a fourth embodiment of the present invention will be described.

In this embodiment, only the parts different from the configuration and technical idea described in detail in the first embodiment will be described in detail. In addition, it is considered that the same configuration as that described in detail in the first embodiment and a portion that does not cause problems even if the same technical idea is applied can be applied in combination with this embodiment, and detailed description is omitted.

Fig. 18 is a cross-sectional view taken along line 2-2 in Fig. 1 of the refrigerator according to the fourth embodiment of the present invention. As shown in FIG. 18 , in refrigerator 50 according to the fourth embodiment, storage state detection unit 85 for detecting the storage state of a target space is arranged in refrigerator compartment 12 at a rear position in refrigerator compartment 12 .

The storage state detection unit 85 in this embodiment may be a wind speed sensor, a weight sensor, or the like.

By using the wind speed sensor in the storage situation detection unit 85, when the target storage space "contains" storage objects 33 or "many" storage objects 33, the storage objects 33 become a ventilation resistance and the wind speed in the storage space decreases, so it can be determined that Presence or absence of storage objects 33 . In this case, the storage state detection unit 85 can be arranged near the discharge port of the air passage that sends cool air to the storage space, but it is not limited to the above-mentioned example, as long as it is arranged at a position that can detect changes in the wind speed of the storage space of the object. , it can be configured anywhere in the library.

Moreover, by using the weight sensor in the storage state detection part 85, the presence or absence of the storage object 33 in the target storage space can be judged based on the change of the weight applied to the storage shelf 18a. The storage state detection unit 85 in this case may be disposed under the target storage shelf 18a. In addition, in order to improve the detection accuracy of storage objects 33, for example, when viewed from the front of the door opening side in refrigerator 50, a plurality of storage status detection units may be arranged on the front side and the back side, or on the left and right sides. 85.

For example, when it is determined that there is no storage 33 or that the storage 33 is "few" based on the detection result of the storage status detection unit 85, the operation of "opening→closing" the flap 74 shown in FIG. 3 is performed, Reduces cooling to object space. Thereby, useless cooling operation can be reduced, and energy-saving performance can be further improved.

In addition, when the storage object 33 is put into the target space, and the storage object 33 is judged to be "present" or "many" according to the detection result of the storage situation detection unit 85, the flap door 74 shown in FIG. The action of "close→open" increases the amount of cooling to the target storage space. Thereby, since the stored goods 33 put into the refrigerator compartment 12 can be cooled rapidly, freshness preservation property can be improved.

Through the above operations, by disposing the storage situation detection unit 85, the presence or absence and amount of the storage objects 33 in the storage space of the object can be detected more accurately, and based on the detection result, optimally match the storage situation of the storage space. Control the output action of electrical functional components. Accordingly, it is possible to provide a refrigerator that reduces useless cooling operations and achieves high energy-saving performance.

As described above, the present invention includes: a storage room for storing storage objects partitioned by a heat insulating wall and an insulating door; a storage state estimation unit for estimating a storage state in the storage room; and a storage storage state estimation unit. A storage unit for the estimation result; and an arithmetic control unit for controlling the output operation of the electrical functional components. The storage room is separated by one or more storage shelves to form a plurality of storage spaces, and the calculation control unit controls the output of the electrical functional components based on the estimation results of the storage status estimation unit, so that the cooling capacity of the storage space Variety. According to this configuration, the present invention can provide a refrigerator that reduces wasteful cooling operations and achieves high energy-saving performance by optimally controlling output operations of electrical functional components in accordance with storage conditions in the storage space.

In addition, in the present invention, the estimation result of the storage situation estimating unit is the storage volume in the storage space, and when the calculation control unit judges that there is “no” or “little” food in the storage space, it can make the storage space Cooldown reduction. According to this structure, the present invention can reduce useless cooling operation and further improve energy-saving performance.

In addition, in the present invention, the electrical functional component is a flap that switches the flow of cold air in the air passage, and when the calculation control unit judges that there is "no" food or that there is "little" food in the storage space, the flap can be used to switch the storage space. The air passage on the side of the space is blocked to reduce the cooling capacity of the storage space. According to this configuration, the present invention can freely adjust the amount of cooling, and even when sufficient cooling is required, such as when storing items are put in, freshness retention can be improved by changing the amount of cooling instantaneously.

In addition, in the present invention, the flap door may be arranged in the air passage across the horizontal projection plane of the shelf that divides and forms the storage space. According to this configuration, the present invention can switch the flow of wind in the air passage with a simple structure formed of one air passage.

In addition, in the present invention, the storage space can be divided into two areas, the upper layer and the lower layer, and the user can switch the air passage between the upper layer that is hardest to reach by hand and the lower layer that is more convenient to use. , cooling only the lower layer. According to this structure, this invention can realize the optimal cooling operation which made both energy-saving performance and usability possible.

Industrial availability

The refrigerator of the present invention has a storage state detection function, and is useful as a household refrigerator or business refrigerator that switches operation modes during power-saving operation or the like using the detection result.

Symbol Description

11 The main body of the cold storage

12, 101 cold room

12a, 12b Refrigerator door

13 ice room

14 switch room

15 freezer

16 vegetable room

17 Operation Department

18, 18a～18d storage shelves

19 Department of Lighting

20, 20a～20e light emitting part

21 Light quantity detection unit

22 Operation Control Department

23 Storage Situation Estimation Department

24Comparative information determination unit

25 Change Information Judgment Department

27a～27c door shelf

28a～28d air volume adjustment part

30 compressors

31 cooling fan

32 temperature compensation heater

33 Storage

34a, 34b light irradiation

50, 100 cold storage

61 temperature sensor

62 door opening and closing detection department

63 outside air temperature sensor

64 storage unit

65 Operation Start Judgment Unit

66 End of operation determination unit

67 gate

68 Defrost Department

70 temperature information determination unit

71 door opening and closing information determination department

72 external illuminance sensors

73 pipes

74 tongue door

81, 83 Sending Department

82, 84 receiving department

85 storage status detection department

91 Display

Claims (11)

1. a freezer, is characterized in that, comprising:

Receiving room that be separated out by thermal wall and insulated door, storage collecting article;

To the storage situation estimation portion that the storage situation in described receiving room is estimated;

Store the storage part of the estimation result in described storage situation estimation portion; With

To the calculation control unit that the output action of Electricity Functional parts controls,

Described receiving room is separated to form multiple accommodation space by one or more storage shelf, and, described calculation control unit, based on the estimation result in described storage situation estimation portion, controls the output action of described Electricity Functional parts, makes to change the amount of cooling water of described accommodation space.

2. freezer as claimed in claim 1, is characterized in that:

The estimation result in described storage situation estimation portion is the storage amount in described accommodation space, and described calculation control unit, when being judged as not having in described accommodation space food or food is few, makes to reduce the amount of cooling water of described accommodation space.

3. freezer as claimed in claim 1, is characterized in that:

Described Electricity Functional parts are the flapper of the flowing of the cold air switched in wind path,

Described calculation control unit, when being judged as not having in described accommodation space food or food is few, by utilizing described flapper to be blocked by the wind path of described accommodation space side, makes the amount of cooling water to described accommodation space reduce.

4. freezer as claimed in claim 2, is characterized in that:

Described Electricity Functional parts are the flapper of the flowing of the cold air switched in wind path,

Described calculation control unit, when being judged as not having in described accommodation space food or food is few, by utilizing described flapper to be blocked by the wind path of described accommodation space side, makes the amount of cooling water to described accommodation space reduce.

5. freezer as claimed in claim 3, is characterized in that:

Described flapper is configured in described wind path across the horizontal plane of the described storage shelf being separated to form described accommodation space.

6. freezer as claimed in claim 4, is characterized in that:

Described flapper is configured in described wind path across the horizontal plane of the described storage shelf being separated to form described accommodation space.

7. the freezer according to any one of claim 1 to 6, is characterized in that:

Described accommodation space is divided into upper layer part and lower layer part 2 regions.

8. freezer as claimed in claim 1, is characterized in that:

Described storage situation estimation portion, the testing result according to the storage condition detection portion comprising sending part and acceptance division estimates storage situation.

9. freezer as claimed in claim 8, is characterized in that:

Described sending part and described acceptance division are integrally constituted.

10. freezer as claimed in claim 1, is characterized in that:

Described storage situation estimation portion, the testing result according to the storage condition detection portion formed by air velocity transducer estimates storage situation.

11. freezers as claimed in claim 1, is characterized in that:

Described storage situation estimation portion, the testing result according to the storage condition detection portion formed by weight sensor estimates storage situation.