WO2014129143A1 - Refrigerator - Google Patents

Abstract

The present invention is provided with: a storage compartment which is defined by heat insulating walls and a heat insulating door and which stores an object to be stored; a storage condition estimation unit (23) which estimates storage conditions within the storage compartment; and a calculation control unit (22) which controls the output operation of a flap (74) which is an electrical function component. The storage compartment has storage spaces separated by one or more storage shelves. On the basis of the result of the estimation performed by the storage condition estimation unit (23) with respect to the storage spaces, the calculation control unit (22) controls the output operation of the flap (74), which is an electrical function component, and changes the amount of cooling of the storage spaces.

Description

refrigerator

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

In recent years, an indirect cooling method in which cold air is circulated in the refrigerator with a fan is a common cooling method for household refrigerators. Such a conventional refrigerator has a refrigerator temperature sensor for detecting the temperature of the refrigerator compartment and a freezer temperature sensor for detecting the temperature of the freezer compartment in the refrigerator. Moreover, the conventional refrigerator is keeping temperature in a warehouse at appropriate temperature by carrying out temperature control control according to the detection result output from these sensors.

For example, as a refrigerator that keeps the inside temperature uniform, there is a refrigerator provided with a movable cold air discharge device (see, for example, Patent Document 1).

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

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

Also, as shown in FIG. 20, in the conventional refrigerator 100, the compressor is driven when the temperature detected by the temperature sensor in the freezer rises to a predetermined temperature (ON temperature). At this time, if the temperature detected by the temperature sensor in the refrigerator compartment is equal to or higher than a predetermined value (open temperature), an operation of closing the damper in the refrigerator compartment is performed to drive the cooling fan (hereinafter referred to as “open”). This operation is referred to as “simultaneous cooling a freezer compartment a”).

After that, when the temperature detected by the temperature sensor in the refrigerator compartment reaches a predetermined temperature (closed temperature), the damper of the refrigerator compartment is operated to “open → close”, and only the freezer compartment side is cooled. (Hereinafter, this operation is referred to as “freezer compartment cooling b”).

After that, when the temperature detected by the temperature sensor in the freezer compartment decreases and reaches a predetermined temperature (OFF temperature), the compressor is stopped (hereinafter, this operation is referred to as “cooling stop c”).

And the conventional refrigerator 100 repeats a series of operation | movement of the refrigerator compartment simultaneous cooling a, the freezer compartment independent cooling b, and the cooling stop c in order during the normal driving | operation.

In the refrigerator 100 having the freezer damper, the operation of driving the compressor and the cooling fan with the refrigerator opener and the freezer damper closed is added to the above series of operations. (Hereinafter, this operation is referred to as “cooling in the refrigerator compartment alone”).

However, the conventional refrigerator 100 uniformly cools the entire interior of the refrigerator regardless of the storage condition in the storage, so that cold air is supplied even to places where there is no storage, resulting in waste of excessive cooling.

In recent years, the working style has changed and the number of double-income households has increased. In addition, shopping opportunities at large supermarkets are increasing. Thereby, the number of people who buy food for a week on holidays is increasing, and the storage capacity of the refrigerator 100 tends to change more than ever. Moreover, the storage amount of the refrigerator 100 is often extremely small on the day before the bulk purchase, and the life pattern of a general household is changing.

The present invention has been made in view of the above-described problems, and provides an easy-to-use refrigerator that ensures freshness while improving energy saving.

JP-A-8-247608

The refrigerator of the present invention is partitioned by a heat insulating wall and a heat insulating door, and stores a storage room for storing stored items, a storage state estimation unit for estimating a storage state in the storage room, and a storage result of the storage state estimation unit. And an arithmetic control unit that controls the output operation of the electrical functional component. The storage room defines a plurality of storage spaces by one or a plurality of shelves, and the calculation control unit controls the output operation of the electrical functional component based on the estimation result of the storage state estimation unit, and supplies the storage space to the storage space. Change the amount of cooling.

This makes it possible to optimally control the output operation of the electrical functional component in accordance with the storage situation in the storage space.

And the refrigerator of this invention reduces the cooling amount to the location where there is no storage thing by changing the cooling amount to storage space based on the estimation result of the storage condition estimation part in storage space, and wasteful cooling Reduce driving and improve energy-saving performance.

FIG. 1 is a front view of the refrigerator in the first embodiment of the present invention. 2 is a cross-sectional view taken along line 2-2 of FIG. FIG. 3 is an explanatory diagram for explaining the operation of the flaps of the refrigerator according to the first embodiment of the present invention. FIG. 4 is a control block diagram of the refrigerator in the first embodiment of the present invention. FIG. 5 is an explanatory diagram for explaining the storage condition detection operation of the refrigerator in the first embodiment of the present invention. FIG. 6 is a flowchart showing storage condition detection control of the refrigerator in the first embodiment of the present invention. FIG. 7 is a flowchart showing the cooling operation determination control using the storage condition detection control of the refrigerator in the first embodiment of the present invention. FIG. 8 is a flowchart showing another example of the cooling operation determination control using the storage condition detection control of the refrigerator in the first embodiment of the present invention. FIG. 9 is a flowchart showing still another example of the cooling operation determination control using the storage condition detection control of the refrigerator in the first embodiment of the present invention. FIG. 10 is a waveform diagram schematically showing the temperature behavior of the temperature sensor according to the presence / absence of a stored item in the target storage space according to the first embodiment of the present invention. FIG. 11 is a waveform diagram schematically illustrating another example of the temperature behavior of the temperature sensor depending on the presence / absence of an object in the target storage space according to the first embodiment of the present invention. FIG. 12 is a waveform diagram schematically showing still another example of the temperature behavior of the temperature sensor depending on the presence / absence of an object in the target storage space according to the first embodiment of the present invention. FIG. 13 is a flowchart showing LED control of the interior lighting of the refrigerator in the first embodiment of the present invention. FIG. 14 is a characteristic diagram showing the LED output of the interior lighting of the refrigerator in the first embodiment of the present invention. FIG. 15 is an explanatory diagram showing a matrix of illuminance in the refrigerator of the first embodiment of the present invention. FIG. 16 is a cross-sectional view taken along line 2-2 in FIG. 1, showing a refrigerator in the second embodiment of the present invention. FIG. 17 is a cross-sectional view taken along the line 2-2 in FIG. 1 showing the refrigerator in the third embodiment of the present invention. 18 is a cross-sectional view taken along line 2-2 in FIG. 1, showing a refrigerator according to a fourth embodiment of the present invention. FIG. 19 is a front view of a conventional refrigerator. FIG. 20 is a waveform diagram schematically showing the temperature behavior of a temperature sensor of a conventional refrigerator.

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

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

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

As shown in FIG. 1, the refrigerator 50 includes a refrigerator body 11. The refrigerator main body 11 is a heat insulating box, and mainly includes an outer box using a steel plate, an inner box formed of a resin such as ABS, and a heat insulating material such as urethane provided in a space between the outer box and the inner box. The inside of the refrigerator main body 11 is insulated from the surroundings by the structure it has.

The refrigerator body 11 is partitioned into a plurality of storage rooms. A refrigeration room 12 is provided at the top, and an ice making room 13 and a switching room 14 are provided side by side at the lower part of the refrigeration room 12. A freezing room 15 is disposed below the ice making room 13 and the switching room 14, and a vegetable room 16 is disposed at the bottom.

A door for partitioning from outside air is formed in the front opening of the refrigerator main body 11 at the front of each storage room. In the vicinity of the center of the refrigerator compartment doors 12a and 12b of the refrigerator compartment 12, an operation unit 17 for setting the internal temperature of each compartment, ice making, rapid cooling, etc., and various information are notified to the user. A display unit 91 which is an example of a notification means for performing the above is arranged.

FIG. 2 is a cross-sectional view of the refrigerator 50 in the first embodiment of the present invention taken along line 2-2 in FIG.

As shown in FIG. 2, in the refrigerator compartment 12, a plurality of storage shelves 18 are provided on the top and bottom, and a plurality of storage spaces are defined. Note that some of the storage shelves 18 are configured to be movable up and down.

Also, in the refrigerator compartment 12, an illumination state 19 composed of a lamp, a plurality of LEDs, etc., and a storage state detection composed of a light emitting unit 20, such as LEDs, and a light amount detection unit 21, such as an illuminance (light) sensor. Is provided.

The illumination unit 19 is on the left side so as to be located in front of half of the depth dimension in the refrigerator and in front (front) of the front end of the storage shelf 18 when viewed from the front side of the door opening side in the refrigerator 50. It arrange | positions in the vertical direction at the wall surface and the right wall surface, respectively. Further, the light emitting unit 20 is disposed adjacent to a position close to the illumination unit 19, and the light amount detection unit 21 is disposed at a rear position in the refrigerator compartment 12.

In addition, arrangement | positioning of the light quantity detection part 21 is not limited to the above-mentioned example, The position which can light-receive the light irradiated by the light emission part 20 via the stored object 33 (refer FIG. 5) and the structure in a warehouse. As long as it is arranged at any position, it may be arranged at any position in the storage.

The upper machine chamber formed with a step in the uppermost rear region in the refrigerator compartment 12 houses the compressor 30 and high-pressure side components of the refrigeration cycle such as a dryer for removing moisture. Yes.

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

A cooling chamber (not shown) for generating cold air is provided on the back of the freezing chamber 15. In the cooling chamber, a cooling fan 31 (see FIG. 4) that blows cooler and cold air that is cooling means cooled by the cooler to the refrigerator compartment 12, the ice making chamber 13, the switching chamber 14, the freezer compartment 15, and the vegetable compartment 16. 4) is arranged. In addition, a defrosting unit 68 (see FIG. 4) configured by a radiant heater, a drain pan, a drain tube evaporating dish, and the like are configured to defrost the cooler and its surrounding frost and ice.

In the refrigerating room 12, the temperature at which the refrigerating room 12 is controlled to cool is controlled by a damper 67 that cuts off or opens the cold air sent from the cooler, and a flap 74 that switches the flow of the cold air, and the temperature that does not freeze in order to perform refrigerated storage. The temperature is usually controlled at 1 ° C. to 5 ° C. with the lower limit of.

Note that the cooling amount referred to here is a value that depends on the amount of cold air and the temperature of the cold air, and the amount of cooling increases when the amount of cold air is large or when the temperature of the cold air is low.

The lowermost vegetable room 16 is temperature-controlled at 2 ° C. to 7 ° C. which is equal to or slightly higher than the refrigerator room 12.

Further, the freezer compartment 15 is set in a freezing temperature zone and is normally temperature-controlled at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. to improve the frozen storage state. In some cases, the temperature is controlled to a low temperature of −25 ° C.

The ice making chamber 13 uses the water sent from the water storage tank (not shown) in the refrigerator compartment 12 to make ice with an automatic ice maker (not shown) provided at the upper part of the room, and the ice is arranged at the lower part of the room. Stored in an ice storage container (not shown).

The switching chamber 14 has a refrigeration temperature zone set at 1 ° C. to 5 ° C., a vegetable temperature zone set at 2 ° C. to 7 ° C., and a freezing temperature zone normally set at −22 ° C. to −15 ° C. It is possible to switch to a preset temperature range between the refrigeration temperature range and the freezing temperature range. The switching chamber 14 is a storage chamber provided with an independent door, which is provided in parallel with the ice making chamber 13, and often includes a drawer-type door.

In the present embodiment, it is assumed that the switching chamber 14 is a storage chamber that can be adjusted to a temperature including the refrigeration and freezing temperature zones. However, the refrigeration function may be assigned to the refrigeration room 12 and the vegetable room 16, and the freezing function may be assigned to the freezing room 15, respectively, so that a storage room specialized for switching only in the intermediate temperature range between refrigeration and freezing may be used. Moreover, it is good also as a storage room fixed to freezing in connection with a specific temperature range, for example, the demand for frozen foods increasing in recent years.

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

The inside of the refrigerator compartment 12 is divided into storage spaces by one or a plurality of shelves 18. The flap 74 is disposed in the duct 73 across the horizontal projection surface of the shelf 18 that defines the storage space, and the flow of cold air in the air passage can be switched in the duct 73 with a simple configuration. Moreover, the flap 74 can operate | move based on the estimation result of a storage condition estimation part, and can adjust the cooling amount to storage space.

For example, when the storage amount is small, by reducing the cooling amount to the target storage space by closing the flap 74, useless cooling operation can be omitted and the energy saving performance can be further improved. On the other hand, when the storage amount is large or increases, by keeping the flap 74 open, the entire interior is cooled, and the amount of cooling can be instantaneously changed to improve the freshness.

It should be noted that the cooling amount of the flap 74 may be further finely adjusted not only by the fully opened or fully closed operation but also by slightly opening (for example, 30 °) according to the storage condition of the target storage space.

Further, the duct 73 in the present embodiment is disposed only on the back side of the refrigerator compartment 12. However, in order to prevent the temperature of the stored contents in the door pocket from becoming higher than necessary, the door 73 may be actively cooled by extending the duct 73 to the top surface side of the refrigerator compartment 12.

Furthermore, a convection in the door pocket may be promoted and cooled by providing a slit shape on the side surface or bottom surface of the door pocket.

The storage space in the present embodiment is divided into two sections, an upper stage and a lower stage. With this configuration, the air path is switched between the upper part, which is most difficult for the user to reach, and the lower part, which is relatively easy to use, and when the storage capacity is small, only the lower part is cooled to achieve both energy saving performance and usability. Optimal cooling operation can be realized.

The arrangement of the flaps 74 is not limited to the above, and a plurality of flaps 74 may be arranged at any position in the duct 73 as long as the cold air from the cooler can be supplied.

Further, the storage space may be divided not only at the upper and lower steps, but also at the left and right portions, the front portion and the rear portion, and the cooling amount of each may be adjusted.

About the refrigerator 50 comprised as mentioned above, the operation | movement and an effect | action are demonstrated.

FIG. 4 is a control block diagram of the refrigerator 50 in the first embodiment of the present invention.

As shown in FIG. 4, the refrigerator 50 includes a light amount detection unit 21, a temperature sensor 61, a door opening / closing detection unit 62, a calculation control unit 22, a light emitting unit 20, a compressor 30, a cooling fan 31, a temperature compensation heater 32, a damper. 67, a defrosting unit 68, a flap 74, and a display unit 91 are provided.

In addition, in order to measure an external environment, you may further provide the outside temperature sensor 63 and the outside illumination intensity sensor 72, but it is not essential.

In addition, the calculation control unit 22 includes a storage state 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 an operation. An end determination unit 66 is provided.

In the refrigerator 50 of the present embodiment, when the door opening / closing operation is performed, the door opening / closing detection unit 62 detects the opening operation or the closing operation, and inputs the signal to the arithmetic control unit 22 configured by a microcomputer or the like. Then, the door opening / closing information determination unit 71 that receives the signal determines the door opening / closing operation. 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 units 20 according to a predetermined program.

The light amount detection unit 21 detects the light amount in the vicinity and inputs the information to the calculation control unit 22. The storage status estimation unit 23 that has received the information obtains storage information such as the storage amount and the position of the storage items.

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

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

Then, the operation start determination unit 65 of the arithmetic control unit 22 is based on the change information obtained by the change information determination unit 25, the compressor 30, the cooling fan 31, the temperature compensation heater 32, the damper 67, the defrosting related to the cooling operation. The operations of the unit 68 and the flap 74 are determined, and the operation is started. In addition, the operation end determination unit 66 of the arithmetic control unit 22 ends the operation of each component described above.

Here, operations 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 the storage state detection operation of the refrigerator 50 according to the first embodiment of the present invention.

Irradiation light 34 a output from the light emitting units 20 arranged on the left and right wall surfaces of the refrigerator 50 irradiates the refrigerator 33 and the stored items 33 stored in the refrigerator 12. Further, a part of the irradiation light 34 a is incident on the light amount detection unit 21 disposed in the refrigerator compartment 12. FIG. 5 shows a case where the stored items 33 are stored in the refrigerator compartment 12. Further, FIG. 5 shows a region A in which the irradiation light 34a from both the left and right wall surfaces is shielded by the presence of the storage object 33, a region B in which any one of the irradiation light 34a is shielded, and any left and right irradiation light 34a. Also, a state where an unshielded region C is generated is shown.

In this case, the light amount detection unit 21 is in the region B where any one of the irradiation lights 34a is shielded, and detects and outputs the corresponding light amount. In addition, when the amount of the stored item 33 is large, the area A that is shielded together increases, and thus the amount of light detected by the light amount detector 21 decreases.

In addition, when the storage amount is small, the area C where any irradiation light 34a is not shielded increases, and thus the amount of light detected by the light amount detector 21 increases.

As described above, the light amount detection unit 21 detects a change in the light amount due to the presence of the stored item 33 and the difference in the amount of the stored item 33. And the detection result is discriminated by the storage state estimation unit 23 of the calculation control unit 22 using a predetermined threshold value set in advance, so that the presence / absence or amount of the stored items 33 in the warehouse (eg, more or less) Can be classified.

In addition, a new light source and material are provided by sharing the light emitting unit 20 with the illumination unit 19 provided in the refrigerator 50 or by using the substrate of the light emitting unit 20 and the substrate of the illumination unit 19 together. In addition, the storage state can be detected with a simpler configuration.

Next, the storage amount detection control using the light emitting unit 20 and the light amount detection unit 21 will be described.

FIG. 6 is a flowchart showing the storage amount detection control of the refrigerator 50 in the first embodiment of the present invention.

In FIG. 6, the arithmetic control unit 22 detects a door opening / closing operation from the normal main control (step S100) (step S101). It is confirmed that the door is closed (step S102), and if it is closed, the storage amount detection control (step S103) is started.

First, storage information of the storage room is obtained by the storage state estimation unit 23 (step S104). Then, the comparison information determination unit 24 compares the storage information before and after the door opening / closing operation, before and after the door opening / closing operations of the past several times, or before and after a certain time, and obtains comparison information (step S105).

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

Then, based on the database, the arithmetic control unit 22 performs cooling operation control (step S108).

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

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

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

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

Next, the calculation control unit 22 performs threshold determination on the storage status 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 reference storage status data B set in advance (Yes in step S114), the process proceeds to temperature detection control, and temperature data C is acquired (step S115). When the temperature data C is smaller than the preset reference temperature data D (the temperature is low) (step S116, Yes), an operation of opening the flap 74 “open → close” is performed to store the target. The amount of cooling to the space is reduced (step S117). At this time, the cooling amount may be reduced by an operation such as reducing the rotation speed of the compressor 30 and the cooling fan 31 and reducing the opening degree of the damper 67 of the refrigerator compartment 12.

On the other hand, when it is determined that the storage status data A exceeds the preset standard storage status data B or less (NO in step S114), an operation of setting the flap 74 to “closed → open” is performed, and the entire interior is stored. Is cooled (step S118). Further, when the temperature data C is larger than the preset reference temperature data D (temperature is high) (step S116, NO), the flap 74 is operated to be “closed → open”, and the entire interior Is cooled (step S118). At this time, the cooling amount may be increased by an operation such as increasing the rotational speeds of the compressor 30 and the cooling fan 31 and increasing the opening degree of the damper 67 of the refrigerator compartment 12.

In addition, regarding temperature detection control (step S115), it is desirable to arrange | position the temperature sensor 61 for every divided storage space. For example, in the present embodiment, the temperature sensor 61 is disposed in the upper stage, and the cooling control is determined based on the detection result. This makes it possible to reliably detect a temperature rise in the target storage space, and to further improve energy saving performance and food freshness.

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

In FIG. 8, when the door opening / closing operation is detected during the main control (step S120) (step S121), the storage state change data E obtained from the storage state change information by the storage state detection control (step S122) is displayed. Then, threshold determination is performed (step S123). When it is determined that the storage state change data E is equal to or less than the reference storage state change data F set in advance (Yes in step S124), the process proceeds to temperature detection control (step S124). Therefore, when the internal temperature is low (step S126, Yes), an operation of opening the flap 74 from “open to closed” is performed to reduce the amount of cooling to the target storage space (step S127). On the other hand, when it is determined that the storage state change data E exceeds the preset reference storage state change data F (NO in step S124), an operation to turn the flap 74 "closed to open" is performed, The whole is cooled (step S128). Further, even when the internal temperature is high (NO in step S126), the operation of setting the flap 74 to “closed → open” is performed to cool the entire internal chamber (step S128). In this way, it is also possible to control the cooling operation by determining the presence or amount of stored items based on the storage state change information.

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

In FIG. 9, when the door opening / closing operation is detected during the main control (step S130) (step S131), the storage status data G obtained from the storage information by the storage status detection control is acquired (step S132). Next, the storage unit 64 acquires the reference storage status data H from the past storage information (step S133), and performs threshold determination for the storage status data G (step S134). When it is determined that the storage status data G is equal to or less than the reference storage status data H (Yes in step S135), the process proceeds to temperature detection control (step S136). Therefore, when the internal temperature is low (step S137, Yes), an operation of opening the flap 74 from “open to closed” is performed to reduce the amount of cooling to the target storage space (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), the flap 74 is operated to be "closed to open" to cool the entire interior. (Step S139). Further, even when the internal temperature is high (NO in step S137), the operation of setting the flap 74 to “closed → open” is performed to cool the entire internal chamber (step S139). Thus, based on the past data of the storage information stored in the storage unit 64, the presence / absence and amount of stored items may be determined to control the cooling operation.

Next, the temperature behavior of the temperature sensor 61 depending on the presence / absence of the storage object 33 in the target storage space will be described in detail with reference to FIGS. 10 to 12 show the temperature behavior of the temperature sensor 61 and the operation of each electric functional part when the stored items are inserted at different timings, with the timing of inserting the stored items being different during the door opening / closing operation. FIG. 10 shows a case where the stored item 33 is put into the target space during the simultaneous cooling a of the freezer compartment. FIG. 11 shows a case where the stored item 33 is put into the target space during the freezer compartment single cooling b. Moreover, FIG. 12 is a case where the storage thing 33 is thrown into the object space at the time of cooling stop c.

As shown in FIG. 10 to FIG. 12, the conventional refrigerator (broken line) is cooled by cooling the portion without the stored item 33 in order to cool the entire interior regardless of the presence or absence of the stored item 33. There is too much waste.

In FIG. 10, the refrigerator 50 of the present embodiment detects the storage state after the door opening / closing operation. When it is determined that there is no or little storage 33 and the temperature in the target storage space is equal to or lower than a predetermined value, the flap 74 is operated to “open → close”, and the target storage space is moved to the target storage space. Reduce the amount of cooling. At this time, the cooling amount may be reduced by an operation such as reducing the rotation speed of the compressor 30 and the cooling fan 31 and reducing the opening degree of the damper 67 of the refrigerator compartment 12. This eliminates unnecessary cooling operation and further improves the energy saving performance.

After that, when the refrigerator 33 is simultaneously cooled a, the stored item 33 is put into the target space, and when the stored item 33 is determined to be “present” or “large”, the flap 74 is set to “closed → open”. The amount of cooling to the target space is increased, and the entire interior is cooled. As a result, even when sufficient cooling is required, such as when the stored item 33 is charged, the freshness can be improved by instantaneously changing the cooling amount. At this time, the cooling amount may be increased by an operation such as increasing the rotational speeds of the compressor 30 and the cooling fan 31 and increasing the opening degree of the damper 67 of the refrigerator compartment 12.

In the refrigerator 50 having the damper 67 of the freezer compartment 15, the damper 67 of the freezer compartment 15 is immediately opened to “open →” when it is determined that the stored item 33 is “present” or “large” in the target storage space. Closed control is performed. Accordingly, it is possible to prevent warm air from the target space where the storage item 33 has been input from flowing into the freezer compartment 15. Then, after a certain time, or when the temperature detected by the temperature sensor 61 of the refrigerator compartment 12 is equal to or lower than a predetermined temperature, or when the temperature detected by the temperature sensor 61 of the freezer compartment 15 is equal to or higher than a predetermined temperature. The 15 dampers 67 are operated to be “closed → open”.

In FIG. 11, when the stored item 33 is put into the target space and the stored item 33 is determined to be “present” or “large” during the freezer compartment cooling alone b, first, the damper 67 of the refrigerator compartment 12 is used. Perform “Close → Open” operation. Thereafter, the flap 74 is moved from “closed to open” to increase the amount of cooling to the target space and cool the entire interior. At this time, the cooling amount may be increased by an operation such as increasing the rotation speed of the compressor 30 and increasing the rotation speed of the cooling fan 31.

When it is determined that the stored item 33 is “present” or “large”, if the temperature detected by the temperature sensor 61 of the freezer compartment 15 is higher than a predetermined temperature (for example, ON temperature), the refrigerator compartment The cooling of the freezer compartment 15 is prioritized while the 12 dampers 67 and the flaps 74 are closed. Thereafter, when another predetermined temperature (for example, an OFF temperature) is reached, the damper 67 of the refrigerator compartment 12 is operated to “close → open”, and then the flap 74 is operated to “close → open”. It is possible to increase the amount of cooling to the target space.

In FIG. 12, when the stored item 33 is thrown into the target space at the time of cooling stop c and it is determined that the stored item 33 is “present” or “large”, the compressor 30 is set for a certain time (for example, After stopping for 10 minutes, the compressor 30 is driven at a high speed regardless of the temperature detected by the temperature sensor 61. And the operation | movement which makes the damper 67 of the refrigerator compartment 12 "close-> open" and the flap 74 "close-> open" is performed. Thereby, since the stored goods 33 thrown into the refrigerator compartment 12 can be cooled quickly, ensuring the startability of the compressor 30, freshness can be improved.

In the refrigerator 50 having the damper 67 of the freezer compartment 15, when the compressor 30 was stopped, the damper 67 of the refrigerator compartment 12 was “open” and the damper 67 of the freezer compartment 15 was “closed” and adhered to the cooler. Cooling with frost may be performed. At this time, when it is determined that the stored item is “present” or “large”, the damper 67 of the freezer compartment 15 remains “closed”. And since the stored thing 33 thrown into the refrigerator compartment 12 can be quickly cooled by starting, ensuring the startability of the compressor 30, and performing the independent operation of the refrigerator compartment 12, it is possible to improve the freshness. it can. However, when the temperature detected by the temperature sensor 61 of the freezer compartment 15 becomes equal to or higher than a predetermined temperature, the operation of setting the damper 67 of the freezer compartment 15 to “closed → open” is performed.

Further, in the refrigerator 50 having the damper 67 of the freezer compartment 15, when the refrigerating room alone is cooled, the stored item 33 is put into the target space, and it is determined that the stored item 33 is “present” or “large”. The damper 67 of the freezer compartment 15 remains “closed”. Thus, it is possible to prevent warm air from the target space in which the storage item 33 has been input from flowing into the freezer compartment 15. In addition, by performing the operation of “closing → opening” the flap 74, the stored items 33 put into the refrigerator compartment 12 can be quickly cooled, so that the freshness can be improved. Then, after a predetermined time, or when the temperature detected by the temperature sensor 61 of the refrigerator compartment 12 is equal to or lower than a predetermined temperature, or when the temperature detected by the temperature sensor 61 of the freezer compartment 15 is equal to or higher than a predetermined temperature. The damper 67 is controlled to be “closed → open”.

By the above operation, it is possible to provide a refrigerator that realizes high energy saving performance by controlling the output operation of the electrical functional component optimally according to the storage condition in the storage space, thereby eliminating unnecessary cooling operation.

As for the automatic rapid cooling and automatic power saving cooling operation in the refrigerator 50 of the present embodiment, it is possible to prioritize functions according to the user's will, such as changing the internal temperature setting or the quick freezing function. .

In the present embodiment, an example in which the storage state detection unit is provided in the refrigerator compartment 12 is shown, but the present invention is not limited to this example, and the refrigerator compartment 12, the ice making chamber 13, the switching chamber 14, and the freezer compartment 15 are provided. And at least one of the vegetable compartments 16.

In addition, this Embodiment is not necessarily limited to the structure of the refrigerator 50 shown in FIG. 2, The machine room is provided in the rear region of the lowermost store room of the heat insulation box which was common in the past, and the compressor 30 It is also possible to apply to a refrigerator of the type in which

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

In addition, the display unit 91 that is a recognition unit that displays on the outer surfaces of the refrigerator compartment doors 12a and 12b provided on the front side of the refrigerator compartment 12 that is a storage compartment provided with the light amount detector 21 allows the user to display the refrigerator compartment 12 with the display unit 91. The state of the stored items can be notified.

The user confirms the display shown on the display unit 91 as the recognition means, opens the refrigerator compartment doors 12a and 12b, and displays “nothing” or “low” in the stored items 33 without hesitation. In addition, food can be placed on the storage shelf 18a which is the uppermost storage space, and the refrigerator compartment doors 12a and 12b can be quickly closed.

Also, it is assumed that the stored item 33 as food is stored in the storage shelf 18a on the front side of the cold air discharge port (not shown), or the stored item 33 is excessively packed. In such a case, when the light amount detected by the light amount detection unit 21 in the vicinity of the cold air outlet is lower than a predetermined value, the target storage space is too packed in the display unit 91 on the outer surface of the refrigerator compartment doors 12a and 12b. Display that the operation is to increase.

Here, when the stored item 33 is excessively packed, or when the stored item 33 is stored in the vicinity of the cold air discharge port (not shown), the stored item 33 becomes a ventilation resistance of the cold air, and the unit time The amount of cool air circulation per hit decreases, and the time for cooling increases. Further, when the amount of cool air circulation is reduced, the air volume of the evaporator is reduced and the heat exchange amount is reduced, so that the evaporation temperature is lowered and the compressor input is also increased due to the expansion of the high / low pressure differential pressure of the refrigeration cycle.

In order to maintain the cooling time, it is necessary to increase the rotation speed of a fan (not shown) that circulates the cold air or increase the rotation of the compressor 30, which also causes a power increase. .

Therefore, it is possible to save energy in actual use of the refrigerator 50 by notifying the user of the power increase tendency that the amount of power consumption increases and urging the optimal arrangement of the storage items 33. As a result, the refrigerator 50 that realizes further energy saving can be provided to consumers, which can contribute to CO2 reduction.

In addition, as a recognition means, it is not limited to the display part 91, For example, the structure which calls attention with an audio | voice is also possible. The storage status information may be displayed on the display unit 91 with an indicator. Thereby, usability can be improved.

In particular, the configuration of the present embodiment is more effective than the conventional case when there is a possibility of storing a wide variety of foods, such as a home refrigerator.

The cooling operation control based on the storage state detection result has been described above. Next, the interior lighting control according to the storage state in the storage will be described.

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

Since the brightness in the cabinet changes depending on the storage status such as the storage amount and storage location, for example, the output setting value of the light emitting unit 20 near the upper stage where the storage amount is small and the lower stage where the storage amount is large is changed. By changing the interior lighting control in accordance with the storage condition in the storage space, it is possible to realize optimal visibility such as reducing glare at night.

Hereinafter, the operation and action will be described with reference to FIGS.

First, the upper storage amount obtained by the storage state detection control of the flow of FIG. 6 is determined within the range defined by the storage state estimation unit 23, and is divided into three categories: “large”, “small”, and “none”. (Step S140). If it is classified as “many”, the output setting of the light emitting units 20a and 20b (hereinafter referred to as “upper side LEDs”) installed on the upper side of the illumination unit 19 is stored as 100% in the storage unit 64. Similarly, when it is classified as “less”, the output setting of the light emitting units 20a and 20b is stored as 50% in the storage unit 64. If it is 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 amount is classified into three categories, “large”, “small”, and “none”, similarly to the upper storage amount (step S142). When it is classified as “large”, the output setting of the light emitting units 20 c and 20 d (hereinafter referred to as “lower LED”) installed on the lower side of the illumination unit 19 is stored in the storage unit 64 as 100%. Similarly, when it is classified as “less”, the output setting of the light emitting units 20c and 20d is stored as 50% in the storage unit 64. If it is classified as “none”, the output setting of the light emitting units 20c and 20d is stored as 20% in the storage unit 64 (step S143).

Subsequently, the illuminance of the surrounding environment where the refrigerator body 11 is installed is measured by the outside illuminance sensor 72 shown in FIG. 4 (step S144). Next, when the ambient illuminance is larger than a specified value (for example, 5 lux or more), it is determined that the light is bright, that is, during daytime activity, and the previously determined LED output setting value is maintained without change. When the ambient illuminance is smaller than a specified value (for example, less than 5 lux), it is determined that the image is dark, that is, at night when sleeping, and the LED output setting value is increased by a factor of 0.5 and stored. The data is stored in the unit 64 (step S145).

Next, the door opening / closing detector 62 determines the door state of the refrigerator compartment door 12a or 12b with the LED output setting value finally determined as described above held (step S146). Therefore, in the case of opening the door, the output setting stored in the storage unit 64 is instructed to the lighting unit 19 to light each LED and irradiate the inside of the cabinet. If the door remains closed, the logic is returned to step S146 to open the door. Each LED is turned off to stand by to stand by (step S147). These specific dimming means include duty control of LED energization (variable pulse), variable LED forward current, variable number of LED lighting, etc., and if these are performed, dimming can be realized.

In the description of the lighting control for dimming the interior lighting so far, the storage amount is divided into three categories of “large”, “small” and “none”, and the LED output settings are “100%”, “50%”, Three categories of “20%” are used, but finer control becomes possible if the classification or linear relationship is made slightly finer. That is, as shown in FIG. 14, the LED output may be increased in a proportional relationship as the storage amount increases. When the ambient illuminance is low, the linear gradient when bright is small (half here).

As described above, the contents of controlling the interior lighting by dimming the LEDs are summarized from the user's viewpoint, and a matrix diagram shown in FIG. 15 is obtained.

In FIG. 15, when the ambient illuminance is “bright”, it is a case where the refrigerator is actively used. When the storage amount is large at that time, it is difficult to see the interior, so the interior lighting is turned on “brightest”. On the contrary, if the storage amount is “small”, the interior is easy to see, so the lighting is turned “slightly dark”.

Next, when the ambient illuminance is “dark”, it is a bedtime when you do not use the refrigerator very much, and you want to reduce glare. Even if the amount of storage is large, the interior lighting is “slightly dark” and the amount of storage is small. If it is darker, turn on the light.

In this embodiment, the dimming of the interior lighting in the upper and lower two zones has been described, but the left and right two zones, the four zones divided into upper, lower, left and right, or any number of zones However, the same storage amount detection and light control of the interior lighting may be performed.

As described above, in the present embodiment, the storage state estimation unit 23 detects the storage state (storage zone / storage amount) in the storage. Further, the daytime / nighttime is determined from the illuminance around the refrigerator main body 11 measured by the outside illuminance sensor 72, and the light emitting unit 20 is dimmed according to the combined state. Power consumption can be reduced, such as reducing the total lighting state at In addition, these light adjustments are not only performed automatically, but dazzle is reduced and visibility is improved particularly at night, and the convenience and satisfaction of the user can be greatly improved.

(Second Embodiment)
Next, the refrigerator in the 2nd Embodiment of this invention is demonstrated.

In the present embodiment, detailed description will be made only on portions different from the configuration and technical idea described in detail in the first embodiment. In addition, the same part as the configuration described in detail in the first embodiment and the part that does not cause a problem even if the same technical idea is applied can be applied in combination with this embodiment. Description is omitted.

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

The transmitting unit 81 is located in front of half of the depth dimension in the refrigerator and in front (front) of the front end of the target storage shelf 18a when viewed from the front side of the door opening side in the refrigerator 50. It is arranged on the top surface in the refrigerator compartment 12. The receiving unit 82 is disposed at a rear position in the refrigerator compartment 12.

In addition, arrangement | positioning of the transmission part 81 and the receiving part 82 is not limited to the above-mentioned example, The receiving part 82 radiates | emits the irradiation thing irradiated by the transmission part 81 via the storage thing 33 and the structure in a warehouse. As long as it is arranged at a position where it can be received, it may be arranged at any position in the warehouse.

In addition, light, infrared rays, ultrasonic waves, etc. are good for the transmission thing irradiated from the transmission part 81. FIG.

For example, when the storage state estimation unit (not shown) determines that the stored item 33 is “absent” or “low” based on the detection result of the receiving unit 82, the flap 74 shown in FIG. “Closed” is performed to reduce the amount of cooling to the target space. As a result, useless cooling operation can be omitted and the energy saving performance can be further improved.

3 is inserted into the target storage space, and the flap 74 shown in FIG. 3 is “closed” when it is determined that the stored item 33 is “present” or “large” based on the detection result of the receiving unit 82. → "Open" is performed to increase the amount of cooling to the target space. Thereby, since the stored item 33 put into the refrigerator compartment 12 can be quickly cooled, the freshness can be improved.

With the above operation, in the present embodiment, the presence or absence of the storage item 33 in the target storage space is accurately detected, and based on the detection result, the output operation of the electric functional component is optimally performed according to the storage state in the storage space. Control. Thus, it is possible to provide a refrigerator that eliminates useless cooling operation and realizes high energy saving performance.

(Third embodiment)
Next, the refrigerator in the 3rd Embodiment of this invention is demonstrated.

In the present embodiment, detailed description will be made only on portions different from the configuration and technical idea described in detail in the first embodiment. In addition, the same part as the configuration described in detail in the first embodiment and the part that does not cause a problem even if the same technical idea is applied can be applied in combination with this embodiment. Description is omitted.

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

The transmitting unit 83 and the receiving unit 84 are located in front of half of the depth dimension in the refrigerator and in front (front) of the front end of the storage shelf 18a when viewed from the front side of the door opening side in the refrigerator 50. Thus, it arrange | positions adjacent to the top | upper surface in the refrigerator compartment 12. FIG.

In addition, arrangement | positioning of the transmission part 83 and the receiving part 84 is not limited to the above-mentioned example, The receiving part 84 radiates | emits the transmission thing irradiated by the transmission part 83 via the storage thing 33 and the structure in a warehouse. As long as it is arranged at a position where it can be received, it may be arranged at any position in the warehouse.

In addition, light, infrared rays, ultrasonic waves, etc. are good for the transmission thing irradiated from the transmission part 83. FIG.

For example, when infrared rays are used as a transmission emitted from the transmission unit 83, the temperature of the stored item 33 can be detected by using the reception unit 84 as an infrared sensor. If the calculation control unit (not shown) determines that the temperature of the stored item 33 is low and has been sufficiently cooled based on the detection result of the reception unit 84, the flap 74 shown in FIG. The amount of cooling to the target storage space is reduced. As a result, useless cooling operation can be omitted and the energy saving performance can be further improved.

Further, when the stored item 33 is inserted into the target space and it is determined that the temperature of the stored item 33 is high based on the detection result of the receiving unit 84, the flap 74 shown in FIG. To increase the amount of cooling to the target storage space. Thereby, since the stored item 33 put into the refrigerator compartment 12 can be quickly cooled, the freshness can be improved.

Further, when an ultrasonic wave is used as a transmitter emitted from the transmitter 83, it is possible to estimate the presence / absence of a stored item by using the receiver 84 as an ultrasonic sensor. If it is determined from the detection result of the reception unit 84 that there is no stored item 33, the flap 74 shown in FIG. 3 is operated to “open → close” to reduce the amount of cooling to the target space. As a result, useless cooling operation can be omitted and the energy saving performance can be further improved.

Further, when the stored item 33 is inserted into the target storage space and it is determined that there is the stored item 33 based on the detection result of the receiving unit 84, the operation of turning the flap 74 shown in FIG. And increase the amount of cooling to the target space. Thereby, since the stored item 33 put into the refrigerator compartment 12 can be quickly cooled, the freshness can be improved.

By the above operation, the transmitter 83 and the receiver 84 are arranged adjacent to each other, so that the presence / absence and temperature of the storage object 33 in the target storage space can be accurately detected with a simpler configuration. Then, based on the detection result, to provide a refrigerator that realizes high energy-saving performance by controlling the output operation of the electrical functional component optimally according to the storage situation in the storage space, thereby eliminating unnecessary cooling operation. Can do.

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

In the present embodiment, detailed description will be made only on portions different from the configuration and technical idea described in detail in the first embodiment. In addition, the same part as the configuration described in detail in the first embodiment and the part that does not cause a problem even if the same technical idea is applied can be applied in combination with this embodiment. Description is omitted.

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

The storage condition detection unit 85 in the present embodiment is preferably a wind speed sensor, a weight sensor, or the like.

By using a wind speed sensor in the storage state detection unit 85, when the storage object 33 is “present” or “large” in the target storage space, the storage object 33 becomes a ventilation resistance, and the wind speed in the storage space decreases. Therefore, the presence / absence of the stored item 33 can be determined. The storage state detection unit 85 in this case is preferably arranged in the vicinity of the discharge port of the air passage that sends cold air to the storage space, but is not limited to the above-described example, and the position where the change in the wind speed in the target storage space can be detected As long as it is arranged at any position, it may be arranged at any position in the storage.

Further, by using a weight sensor for the storage state detection unit 85, it is possible to determine the presence / absence of the storage item 33 in the target storage space from the change in the weight applied to the storage shelf 18a. In this case, the storage status detection unit 85 is preferably arranged below the target storage shelf 18a. Further, in order to improve the detection accuracy of the stored items 33, for example, a plurality of storage state detection units 85 are provided such as the front side and the back side, or the left side and the right side when viewed from the front side of the door opening side in the refrigerator 50. You may arrange.

For example, when it is determined from the detection result of the storage state detection unit 85 that the stored item 33 is “absent” or “less”, the flap 74 shown in FIG. Reduce the amount of cooling to the target space. As a result, useless cooling operation can be omitted and the energy saving performance can be further improved.

In addition, when the stored item 33 is inserted into the target space and it is determined that the stored item 33 is “present” or “large” based on the detection result of the storage state detection unit 85, the flap 74 illustrated in FIG. The operation of “closed → open” is performed to increase the amount of cooling to the target storage space. Thereby, since the stored item 33 put into the refrigerator compartment 12 can be quickly cooled, the freshness can be improved.

With the above operation, the storage state detection unit 85 is arranged to detect the presence or amount of the storage item 33 in the target storage space with higher accuracy, and based on the detection result, the storage state in the storage space is matched. , Optimally control the output operation of electrical functional parts. Thus, it is possible to provide a refrigerator that eliminates useless cooling operation and realizes high energy saving performance.

As described above, the present invention is divided by a heat insulating wall and a heat insulating door, and stores a storage room for storing storage items, a storage state estimation unit for estimating a storage state in the storage room, and an estimation result of the storage state estimation unit And a calculation control unit for controlling the output operation of the electrical functional component. The storage room defines a plurality of storage spaces by one or a plurality of shelves, and the calculation control unit controls the output operation of the electrical functional component based on the estimation result of the storage state estimation unit, and supplies the storage space to the storage space. Change the amount of cooling. With this configuration, the present invention can provide a refrigerator that realizes high energy-saving performance by controlling the output operation of the electrical functional component optimally according to the storage situation in the storage space, thereby eliminating unnecessary cooling operation. .

Further, the present invention is directed to the storage space when the estimation result of the storage state estimation unit is the storage amount in the storage space, and the arithmetic control unit determines that there is no food in the storage space or “low”. The amount of cooling may be reduced. With this configuration, the present invention can eliminate useless cooling operation and further improve energy saving performance.

Further, the present invention is a flap for switching the flow of cold air in the air passage by the electric functional component, and when the arithmetic control unit determines that there is no food in the storage space, it is stored by the flap. The air flow path on the space side may be closed to reduce the amount of cooling to the storage space. With this configuration, the present invention can freely adjust the amount of cooling, and even when sufficient cooling is required, such as when storing things, the amount of cooling can be instantaneously changed to improve the freshness. Can do.

In the present invention, the flap may be arranged in the air passage across the horizontal projection surface of the shelf that defines the storage space. By this structure, this invention can switch the flow of the wind in an air path with the simple structure by one air path.

In addition, the present invention divides the storage space into two sections, an upper stage and a lower stage, and the air path is switched between the upper stage, which is most difficult for the user to reach, and the lower stage, which is relatively easy to use. May be configured to cool only the lower stage. With this configuration, the present invention can realize an optimal cooling operation that achieves both energy saving performance and usability.

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

DESCRIPTION OF SYMBOLS 11 Refrigerator main body 12,101 Refrigeration room 12a, 12b Refrigeration room door 13 Ice making room 14 Switching room 15 Freezing room 16 Vegetable room 17 Operation part 18, 18a-18d Storage shelf 19 Illumination part 20, 20a-20e Light emission part 21 Light quantity detection part DESCRIPTION OF SYMBOLS 22 Computation control part 23 Storage condition estimation part 24 Comparison information determination part 25 Change information determination part 27a-27c Door shelf 28a-28d Air volume adjustment part 30 Compressor 31 Cooling fan 32 Temperature compensation heater 33 Storage thing 34a, 34b Irradiation light 50, DESCRIPTION OF SYMBOLS 100 Refrigerator 61 Temperature sensor 62 Door opening / closing detection part 63 Outside temperature sensor 64 Storage part 65 Operation start determination part 66 Operation end determination part 67 Damper 68 Defrost part 70 Temperature information determination part 71 Door opening / closing information determination part 72 Outside illumination intensity sensor 73 Duct 74 Flap 81, 83 Transmitter 82, 84 Receiver 85 Storage state Status detection part 91 Display part

Claims (11)

1. A storage room that is partitioned by a heat insulating wall and a heat insulating door, and stores storage items; a storage state estimation unit that estimates a storage state in the storage room; a storage unit that stores an estimation result of the storage state estimation unit; An arithmetic control unit that controls an output operation of the functional component, and the storage chamber defines a plurality of storage spaces by one or a plurality of storage shelves, and the arithmetic control unit is configured to store the storage state estimation unit. A refrigerator that controls an output operation of the electrical functional component based on the estimation result and changes a cooling amount to the storage space.
2. The estimation result of the storage state estimation unit is the storage amount in the storage space, and the arithmetic control unit reduces the cooling amount to the storage space when it is determined that there is no food in the storage space or there is little food. The refrigerator according to claim 1.
3. The electric functional component is a flap for switching the flow of cold air in the air passage, and the arithmetic control unit determines that there is no food in the storage space or there is little food in the storage space, the air path on the storage space side by the flap. The refrigerator of Claim 1 which reduces the cooling amount to the said storage space by obstruct | occluding.
4. The electric functional component is a flap for switching the flow of cold air in the air passage, and the arithmetic control unit determines that there is no food in the storage space or there is little food in the storage space, the air path on the storage space side by the flap. The refrigerator of Claim 2 which reduces the cooling amount to the said storage space by obstruct | occluding.
5. The refrigerator according to claim 3, wherein the flap is disposed in the air passage across a horizontal projection plane of the storage shelf that defines the storage space.
6. The refrigerator according to claim 4, wherein the flap is disposed in the air passage across a horizontal projection surface of the storage shelf that defines the storage space.
7. The refrigerator according to any one of claims 1 to 6, wherein the storage space is divided into two sections of an upper stage and a lower stage.
8. The refrigerator according to claim 1, wherein the storage state estimation unit estimates the storage state from a detection result of a storage state detection unit including a transmission unit and a reception unit.
9. The refrigerator according to claim 8, wherein the transmitter and the receiver are integrated.
10. The refrigerator according to claim 1, wherein the storage state estimation unit estimates a storage state from a detection result of a storage state detection unit including a wind speed sensor.
11. The refrigerator according to claim 1, wherein the storage state estimation unit estimates a storage state from a detection result of a storage state detection unit including a weight sensor.

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