JP3738169B2 - Humidity control refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of a refrigerator comprising a single compressor and a single cooler and circulating chill from the cooler through a freezing compartment and a refrigerating compartment by means of a fan that foods in the refrigerating compartment are dried because the freezing compartment is controlled preferentially to bring about an environment unsuitable for storing frozen foods, and to provide a refrigerator where frozen foods are protected against drying by melting frost adhering to the cooler. SOLUTION: Under humidifying operation (or wetting operation) state of a refrigerating compartment, a compressor is stopped and a chill regulator for freezing compartment closes a chill supply passage to the freezing compartment. Under a state where a chill supply passage to the refrigerating compartment is opened, a chill regulator for the refrigerating compartment melts frost adhering to the cooler, thus bringing about a humidified state in the refrigerating compartment.

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention has a single compressor and a single cooler, and in a refrigerator that circulates cold air cooled by the cooler to a freezer compartment and a refrigerator compartment by a blower, for melting frost attached to the cooler. The present invention relates to a humidity control refrigerator that places the refrigerator compartment in a humidified state.
[0002]
[Prior art]
In a refrigerator having a single compressor and a single cooler and circulating the cool air cooled by the cooler to a freezer compartment and a refrigerator compartment by a blower, the compressor is the temperature of the freezer compartment or the cooler. Since the operation is controlled according to the above, the freezer is the main body and the refrigerator compartment is subordinately controlled.
[0003]
[Problems to be solved by the invention]
In this way, the food in the refrigerator compartment is dried by the control of the freezer main body, and it is not preferable from the viewpoint of storage of the refrigerator food that dislikes drying. In view of such problems, the present invention provides a refrigerator in which drying of food in a refrigerator can be suppressed by melting frost attached to a cooler.
[0004]
[Means for Solving the Problems]
As one specific means of the present invention, in the refrigerator having a single compressor and a single cooler and circulating the cool air cooled by the cooler to the freezer compartment and the refrigerator compartment by a blower, the freezer compartment A freezer compartment cold air adjusting device for opening and closing the cold air supply path to the freezer compartment and a cold room air conditioner for opening and closing the cold air supply passage to the refrigerating room, and in a normal cooling operation state, the compressor is the freezer room Alternatively, the operation is controlled according to the temperature of the cooler, and in the humidifying operation state of the refrigerator compartment, the compressor is stopped, the cooler for the freezer compartment closes the cool air supply path to the freezer compartment and the The refrigeration room chiller is in a state where the refrigeration room is opened, the refrigeration room is humidified by melting frost adhering to the cooler during operation of the blower , In the humidification operation, the integrated value of the operation time of the compressor is a predetermined value. And a technical means that starts when the compressor is stopped and stops when the temperature of the cooler rises to a predetermined temperature or when a predetermined time elapses from the start and returns to the normal cooling operation state. Adopted.
To do .
[0005]
[0006]
[0008]
[0009]
[0010]
[0011]
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the refrigerator of the present invention will be described. 1 to 3 show one embodiment of the present invention. FIG. 1 is a front view of the refrigerator, FIG. 2 is a longitudinal side view of the refrigerator of FIG. 1, and FIG. 3 is a control configuration diagram of the refrigerator.
[0013]
1 to 3, reference numeral 1 denotes a refrigerator body, which has a heat insulating structure in which a foam heat insulating material 4 is filled between an outer box (outer wall plate) 3 and an inner box (inner wall plate) 2. In the refrigerator main body 1, a refrigerator compartment 5, a vegetable compartment 6, and a freezer compartment 7 are partitioned from above, and a refrigerator compartment 5 and a partition plate (partition wall) 8 are provided at the bottom of the refrigerator compartment 5. The freezing room 7 is divided into an upper freezing room 10, a lower freezing room 11, and an ice making room 20. The front opening of the refrigerator compartment 5 is closed at one side of the refrigerator body 1 by a pivotable door 12 that is pivoted laterally by a hinge device and opened and closed. The front opening of the vegetable compartment 6 is closed by a drawer-type door 14 that is drawn forward together with the vegetable container 13 supported so as to be drawn in the front-rear direction by left and right rails or roller devices provided in the vegetable compartment 6. Like the vegetable compartment 6, the upper freezer compartment 10 and the lower freezer compartment 11 are each a drawer-type door that is drawn forward together with containers 15 and 16 supported so as to be able to be drawn in the front-rear direction with respect to the left and right rails provided in the freezer compartment. Closed at 17 and 18.
[0014]
In the ice making chamber 20, an automatic ice making machine 21 is provided in the upper part, and an ice storage container 22 is arranged in the lower part. Similarly to the vegetable compartment 6, the ice storage container 22 is supported so that it can be pulled out in the front-rear direction with respect to the left and right rails provided on the left and right walls in the ice making chamber 20, and is a drawer that opens and closes the front opening of the ice making chamber 20. This is a mechanism that is pulled forward together with the expression door 23. A water supply tank for storing ice making water to be supplied to the automatic ice making machine 20 is provided in the refrigerator compartment 5, and the ice making water is supplied from the water supply tank to the ice making tray 24 of the automatic ice making machine 20 through a water supply pipe by a pump.
[0015]
25 is a refrigerant compressor of the refrigeration system, 26 is an evaporator (cooler) of the refrigerant of the refrigeration system,
Reference numeral 27 denotes a refrigerant condenser of the refrigeration system, and 28 denotes an evaporating dish for evaporating the defrosted water in the cooler 26 by heat from the condenser 27 and the like. A blower 29 circulates the cold air cooled by the cooler 26 to the freezer compartment 7, the ice making compartment 20, the refrigerator compartment 5, the specific low temperature compartment 9 and the vegetable compartment 6. The specific low temperature chamber 9 is provided with a container 30 supported so that it can be pulled out in the front-rear direction with respect to the left and right rails provided in the specific low temperature chamber 9.
[0016]
31 is a cold air adjusting device for adjusting the amount of cold air supplied from the blower 29 to the freezer compartment 7, and as one means of cold air adjustment, the cold air passage (including the cold air outlet) to the freezer compartment 7 is connected to the freezer compartment 7 or The damper 32 is opened and closed by the electric device 33 according to the temperature of the cooler 26. The electric device 33 is an electric part that drives the damper 32 to open and close, and is a combination of an electric motor and a gear or a mechanism of an electromagnetic solenoid. The temperature of the freezer compartment 7 is adjusted to a predetermined range by the cold air adjusting device 31.
[0017]
Reference numeral 34 denotes a cool air adjusting device that adjusts the amount of cool air supplied from the blower 29 to the refrigerator compartment 5, the specific low temperature compartment 9, and the vegetable compartment 6. As one means for adjusting the cool air, a cool air passage (cool air blowout) to the refrigerator compartment 5 is provided. The damper 37 is opened and closed by the electric device 36 in accordance with the temperature of the refrigerator compartment 5. The electric device 33 is an electric part that drives the damper 32 to open and close, and is a combination of an electric motor and a gear or a mechanism of an electromagnetic solenoid. The temperature of the refrigerator compartment 5 is adjusted to a predetermined range by the cold air adjusting device 34.
[0018]
The refrigerator compartment 5 is cooled by the cold air blown out from the blower 29 and supplied from the cold air passage 35 through the supply port 42. The specific low temperature chamber 9 is cooled by the cold air supplied from the cold air passage 35 through the supply ports 38 and 39 and the cold air circulating in the refrigerator compartment 5. The vegetable compartment 6 is cooled by cold air supplied from the cold air passage 35 through the supply port 40 and cold air supplied from the supply port 41 after circulating through the refrigerator compartment 5. The cold air that has cooled the refrigerator room 5, the vegetable room 6, and the specific low temperature room 9 is sucked into the cooler 26 from below the cooler 26 through the cool air return passage 48 from the cold air suction port 47 formed on the rear wall of the vegetable room 6. It is cooled and the same circulation as above is repeated. Depending on the type of refrigerator, the specific cold room 9 and the vegetable room 6 may not be provided.
[0019]
The freezer compartment 7 is cooled by the cold air blown out from the blower 29 and supplied from the cold air passage 43 through the supply port 44. In the illustrated embodiment, the freezer compartment 7 is divided into an upper freezer compartment 10, a lower freezer compartment 11, and an ice making room 20, and the cold air supplied from the cold air supply port 44 is the ice making room 20 and the upper freezer compartment 10. Then, the air is supplied from the cold air supply port 45 to the lower freezer compartment 11 and supplied directly from the supply passage 45A to the lower freezer compartment 11. The cold air that has cooled the freezer compartment 7 is sucked into the cooler 26 from the lower side of the cooler 26 through the cool air return passage 49 through the cool air suction port 46 formed in the rear wall of the lower freezer compartment 11 and is cooled again to perform the same circulation as described above. repeat.
[0020]
In FIG. 3, reference numeral 50 denotes a freezer compartment sensor provided for temperature control of the freezer compartment 7, which substantially senses the temperature of the freezer compartment 7 or the temperature of the cooler 26. A refrigerating room sensor 51 is provided for temperature control of the refrigerating room 5 and substantially detects the temperature of the refrigerating room 5. A defrosting end sensor 52 detects the defrosting end temperature of the cooler 26. Reference numeral 53 denotes a microcomputer-type control device that operates the compressor 25, the blower 29, the cool air adjusting device 31, the cool air adjusting device 34, and the like according to signals from the freezer sensor 50, the refrigerator sensor 51, the defrosting end sensor 52, and the like. To control.
[0021]
The present invention obtains a humidifying effect by the frost melting water of the cooler 26 in order to suppress the drying of the refrigerator compartment, and does not supply a large amount of moisture, but includes moisture rather than dry air. Since it circulates moisture, it can be said that it is a refrigerator that provides a moisturizing effect. One embodiment of the control will be described below.
[0022]
First, a normal cooling operation will be described. The freezer compartment sensor 50 constitutes a temperature sensing means in which the voltage value changes as its resistance value changes due to temperature sensing. Based on the temperature sensing of the freezer compartment sensor 50, the control unit 53 causes the compressor 25 and the blower to change. The operation (ON) and stop (OFF) of 29 are performed to control the freezer compartment 7 within a predetermined temperature range. This temperature range is, for example, −18 ° C. to −20 ° C. The control method of the compressor 25 and the blower 29 is not the operation (ON) and stop (OFF), but the freezer compartment 7 is controlled by the so-called inverter control capability control method based on the rotation speed control of the motors of the compressor 25 and the blower 29. A method of controlling to a predetermined temperature range may be used. On the other hand, the cold room 5 is controlled to a predetermined temperature range by the controller 53 based on the temperature sensing of the cold room sensor 51 by the controller 53 so that the cold air adjusting device 34 opens and closes the cold air supply path 35. This temperature range is, for example, 3 ° C to 5 ° C.
[0023]
As another method of the normal cooling operation, the compressor 25 and the blower 29 are stopped (OFF) when both the freezer compartment sensor 50 and the refrigerating compartment sensor 51 sense a predetermined low temperature, or are operated at a low speed by inverter control. When either one of the freezer compartment sensor 50 and the freezer compartment sensor 51 senses a predetermined high temperature, the operation (ON) or high speed operation is controlled by the inverter control, and the freezer compartment 7 is controlled within a predetermined temperature range. It is also possible to adopt a method that is used. On the other hand, the cold room 5 is controlled to a predetermined temperature range by the controller 53 based on the temperature sensing of the cold room sensor 51 by the controller 53 so that the cold air adjusting device 34 opens and closes the cold air supply path 35.
[0024]
Next, the humidification operation (or moist operation) of the refrigerator compartment 5 will be described. In the humidification operation (or moistening operation), the compressor 25 is stopped, the cold air conditioner 31 for the freezer compartment closes the cold air supply path 43 to the freezer room 7, and the cold air conditioner 34 for the cold room is cold air to the refrigerator room 5. With the supply path 35 opened, the refrigerator 5 is humidified, that is, moistened by melting of frost adhered to the cooler 26 by the operation of the blower 29. Specifically, there is a method in which the humidification operation (or moist operation) is started by a signal when the accumulated operation time of the compressor reaches a predetermined value. The compressor 25 is stopped (OFF), the freezer compartment cooler controller 31 closes the cool air supply path 43 to the freezer compartment 7, and the blower 29 is operated (ON) by the start signal of the humidifying operation (or moistening operation). Thus, an air circulation passing through the cooler 26 is formed in the refrigerating chamber 5, and the air in the refrigerating chamber 5 gradually melts the frost in the cooler 26. Due to the molten water, the humidity of the refrigerator compartment 5 is increased, and the humidifying effect of the refrigerator compartment 5, that is, the moistening effect is obtained. This is a humidifying operation (or a humid operation). This humidification operation (or moist operation) ends when a predetermined time has elapsed by the timer means. As another method, a means for ending when the cooler 26 rises to a predetermined upper limit temperature may be used.
[0025]
In order to maintain the low temperature of the freezer compartment 7 and to lengthen the humidifying operation time, when the humidifying operation start signal is received and the compressor 25 is in operation, the freezer compartment sensor 50 detects a predetermined low temperature. The compressor 25 is operated until the freezer compartment sensor 50 senses a predetermined low temperature, and the compressor 25 is stopped (OFF). In this state, the humidifying operation is started to increase the humidity of the refrigerator compartment 5. The humidification operation can be terminated by this method. As described above, there is a method of performing the humidifying operation during the stop (OFF) period of the compressor 25.
[0026]
The humidification operation (or moist operation) can be started by a manual humidification switch operated by a user of the refrigerator. In this case, there is a method in which the humidification operation (or moistening operation) is started immediately by turning on the humidification switch. However, as another method, when the compressor 25 is in operation when the humidification switch is turned on, freezing is performed. The compressor 25 is operated until the room sensor 50 senses a predetermined low temperature. When the freezer compartment sensor 50 senses a predetermined low temperature, the compressor 25 is stopped (OFF), and the humidification operation is started in this state. The humidification operation can be terminated by the above method.
[0027]
As another method, during the normal cooling operation, the compressor 25 and the blower 29 are operated (ON) and stopped (OFF) based on the detection of the freezer sensor 50, and the temperatures of the freezer room 7 and the refrigerator room 5 are detected. The control can be performed by the freezing room cold air conditioner 31 and the cold room cold air conditioner 34, respectively. Also in this case, the humidifying operation (or moistening operation) can be performed as described above.
[0028]
Each control operation described above is performed by the control device 53. Although the frost in the cooler 26 is gradually melted by the above humidification operation (or moist operation), the frost is not completely removed. For this reason, the regular defrosting process (defrosting operation | movement) of the cooler 26 is required.
[0029]
Next, this defrosting process (defrosting operation) will be described. There is a method of starting the regular defrosting process (defrosting operation) when the accumulated operation time of the compressor 25 reaches a predetermined value. There is also a method in which the thickness of the frost in the cooler 26 is detected by a frost thickness detection sensor such as an optical sensor, a temperature sensor, a capacitance change sensor, or an electric resistance change sensor. In any case, when the start command of the normal defrosting process (defrosting operation) enters the control device 53, the compressor 25 and the blower 29 are stopped (OFF), and the electric heater 54 associated with the cooler 26 is transferred to. Energization is performed to defrost the cooler 26. When the temperature of the cooler 26 increases and reaches the upper limit set temperature by the defrosting process (defrosting operation), or when the defrosting end is detected by the frost thickness detection sensor such as an optical sensor, the defrosting process (removal) The frost operation) is completed, and the normal cooling operation state is restored.
[0030]
During this defrosting process (defrosting operation), the cold room air conditioner 31 for the freezer compartment closes the cold air supply path 43, the cold air conditioner 34 for the refrigerating room opens the cold air supply path 35, and the fan 29 is operated (ON). The humidified operation (or moistening operation) of the refrigerator compartment 5 can be performed by circulating the humid air passing through the cooler 26 to the refrigerator compartment 5. Termination of the humidification operation (or moistening operation) can be performed by sensing the temperature of the cold room sensor 51 or at the end of the defrosting process (defrosting operation).
[0031]
In the above, the vegetable room 6 is a kind of refrigeration room, and the present invention shall be regarded as a refrigeration room = a vegetable room.
[0032]
As described above, the present invention provides a refrigerator having a single compressor and a single cooler and circulating the cool air cooled by the cooler to a freezer compartment and a refrigerator compartment using a blower. In the operation (or moist operation) state, the compressor is stopped, the cold room air conditioner for the freezer compartment closes the cold air supply path to the freezer room, and the air conditioner for the cold room supplies cold air to the refrigerator room. The technical means which makes the said refrigerator compartment humidified by melting | dissolving the frost adhering to the said cooler by the driving | operation of the said air blower in the state where the path was opened was employ | adopted. For this reason, the humidification (or moistening) of the refrigerator compartment in a single compressor and single cooler system can be performed by effectively utilizing the melting of the frost attached to the cooler. Even without a device, it is possible to keep foods moist and preserved. In addition, since the frost in the cooler melts even a little due to the humidification operation (or moist operation), when the start of the regular defrost process (defrost operation) is performed by integrating the operation time of the compressor, the regular defrost When the time of the process (defrosting operation) is shortened and the start of the regular defrosting process (defrosting operation) is performed by a method of catching frost growth in the cooler, the regular defrosting process (defrosting) Therefore, the energy consumed by the normal defrosting process (defrosting operation) is reduced, and an economical cooling effect is obtained.
[0033]
According to the present invention, the humidifying operation (or moistening operation) of the refrigerator compartment is started when the integrated value of the operation time of the compressor reaches a predetermined value, and when the temperature of the cooler rises to a predetermined temperature or Technical means was adopted that ends when a predetermined time has elapsed from the start and returns to the normal cooling operation state. For this reason, by relating the humidifying operation (or moistening operation) to the integrated value of the operating time of the compressor, the amount of frost in the cooler is reduced for each humidifying operation, and the normal defrosting operation time of the cooler can be shortened. .
[0034]
In the present invention, the humidification operation (or moistening operation) of the refrigerator compartment is started when the integrated value of the operation time of the compressor reaches a predetermined value and the compressor is stopped, and the temperature of the cooler is predetermined. Technical means was adopted that ends when the temperature rises or when a predetermined time elapses from the start and returns to the normal cooling operation state. For this reason, in addition to the above, the humidifying operation (or moistening operation) is terminated when the temperature of the cooler rises to a predetermined temperature or when a predetermined time has elapsed from the start of the humidifying operation. This can prevent harmful effects caused by temperature rise in the machine and the refrigerator compartment.
[0035]
Further, the present invention employs technical means in which the humidification operation (or moistening operation) of the refrigerator compartment is started by a humidification operation start switch operated by a refrigerator user. For this reason, when the user stores the food that the user wants to humidify (or moisturize), the humidification operation can be arbitrarily started, and the use according to the stored food can be performed.
[0036]
Further, the present invention employs technical means in which the humidification operation of the refrigerator compartment is started by the humidification operation start switch operated by the refrigerator user when the compressor is stopped. For this reason, when the humidification operation start switch is operated, the humidification operation (or moistening operation) is not started anytime, but the compressor is operated and the freezer compartment is cooled to a predetermined lower limit temperature. The adverse effect on storage of food in the freezer can be suppressed.
[0037]
Further, according to the present invention, the cold air conditioner for the refrigerating room opens and closes the cold air supply path to the refrigerating room at the temperature of the refrigerating room, and the cold air conditioner for the freezer room is the temperature of the freezer or the temperature of the cooler. Adopted technical means to open and close the cold air supply path to the freezer. For this reason, the temperature of the freezer compartment and the refrigerator compartment can be controlled independently, and in the system in which the operation of the compressor is controlled substantially by the temperature of the freezer compartment, the refrigerator compartment is prevented from being overcooled and the temperature control prioritizing the freezer compartment Can do.
[0038]
In the present invention, during the humidifying operation (or moistening operation) of the refrigerator compartment, when the temperature of the freezer compartment or the cooler rises to a predetermined upper limit temperature, the humidifying operation of the refrigerator compartment is stopped and the normal operation is stopped. Adopted technical means to return to the cooling operation state. For this reason, when the temperature of the freezer compartment or the cooler rises to a predetermined upper limit temperature during the operation control of the compressor in the normal cooling operation state by the humidification operation (or moist operation), the humidification operation is stopped and the normal operation is stopped. Since it returns to cooling operation, the excessive temperature rise of a freezer compartment and a refrigerator compartment by humidification operation (or moist operation) can be controlled, and it becomes a good refrigerator on food storage.
[0039]
Further, according to the present invention, as one specific means for solving the above-described problem, when the integrated value of the operation time of the compressor reaches a predetermined value, the electric heater is energized to perform the defrosting operation of the cooler. In the defrosting operation state, the cold air conditioner for the refrigerating room opens the cold air supply path, and the air passing through the cooler is circulated to the refrigerating room by the blower and the refrigeration is performed. Adopted technical means to perform humidification operation (or moist operation) of the room. For this reason, the humidification operation of a refrigerator compartment can be performed effectively using the defrosting operation period of a cooler.
[0040]
The present invention is characterized by matters described in the claims. For this reason, it is not limited to the said embodiment, The various embodiment in the part which does not deviate from the range is included.
[0041]
【The invention's effect】
According to the first invention, the humidification (or moisture) of the refrigerator compartment in the single compressor and single cooler system can be performed by effectively utilizing the melting of the frost adhered to the cooler. Even without a special device such as a bowl, it is possible to keep the food moist and preserved. In addition, since the frost in the cooler melts even a little due to the humidification operation (or moist operation), when the start of the regular defrost process (defrost operation) is performed by integrating the operation time of the compressor, the regular defrost When the time of the process (defrosting operation) is shortened and the start of the regular defrosting process (defrosting operation) is performed by a method of catching frost growth in the cooler, the regular defrosting process (defrosting) Since the start of the operation is delayed, the energy consumed by the regular defrosting process (defrosting operation) is reduced, an economical cooling effect is obtained , and the temperature of the cooler is set to a predetermined temperature in the humidifying operation (or moistening operation). And when the predetermined time has elapsed since the start of the humidification operation, it is possible to prevent an adverse effect caused by the temperature rise of the refrigerator and the refrigerator compartment due to the humidification operation for an unnecessarily long time.
[0042]
[0043]
[0044]
[0045]
[0046]
[0047]
[0048]
[Brief description of the drawings]
FIG. 1 is a front view of a refrigerator according to an embodiment of the present invention.
2 is a vertical side view of the refrigerator of FIG. 1 according to an embodiment of the present invention.
FIG. 3 is a control configuration diagram of the refrigerator according to the embodiment of the present invention.
[Explanation of symbols]
1 ... Refrigerator body 2 ... Inner box 3 ... Outer box 4 ... Insulation 5 ... Refrigerator room 6 ... Vegetable room 7 ... Freezer room 8 ... Division wall 9 ... Specific cold room 10 ... Upper freezer Room 11 ... Lower freezer room 12 ... Refrigerated room door 13 ... Vegetable container 14 ... Vegetable room door 15 ... Freezer room container 16 ... Freezer room container 17 ... Upper freezer room door 18 ... Lower freezer room door 20 ... Ice making room 21 ... Automatic ice making Machine 22 ... Ice storage container 23 ... Ice making room door 24 ... Ice making tray 25 ... Compressor 26 ... Cooler 27 ... Condenser 28 ... Evaporating dish 29 ... Blower 30 ... Container 31 ... Cold air conditioner for freezer room 32 ... Damper 33 ... Electric Device 34 ... Cold air control device 35 for cold room 36 ... Cold air supply path 36 ... Electric device 37 ... Damper 38 ... Cold air supply port 39 ... Cold air supply port 40 ... Cold air supply port 41 ... Cold air supply port 42 ... Cold air supply port 43 ... Cold air supply Path 44 ... Cool air supply port 45 ... Cool air supply port 46 Cold suction port 47 ... cold suction port 48 ... cold return path 49 ... cold feedback path 50 ... freezing compartment sensor 51 ... refrigerating compartment sensor 52 ... defrost termination sensor 53 ... controller 54 ... electric heater

Claims (1)

In a refrigerator having a single compressor and a single cooler and circulating the cold air cooled by the cooler to a freezer compartment and a refrigerator compartment with a blower,
A freezer compartment cool air adjusting device for opening and closing the cool air supply passage to the front Symbol freezer compartment, the refrigerator compartment air controlling apparatus for opening and closing the cool air supply passage to the cooling chamber is provided,
In the cooling operation state of the normal, the compressor is operated in response to the temperature of the freezing chamber or the cooling device is controlled,
The humidification operation state before Symbol refrigerator compartment, the compressor is stopped, the refrigerating compartment cold air regulating device and the refrigerator compartment air controlling apparatus closes the cool air supply passage to the freezing chamber cold air to the refrigerating chamber With the supply path opened, the refrigerator compartment is humidified by melting frost attached to the cooler during operation of the blower ,
The humidification operation of the refrigerator compartment is started when the integrated value of the operation time of the compressor reaches a predetermined value and the compressor is stopped, and when the temperature of the cooler rises to a predetermined temperature or from the start. The humidity control type refrigerator, which is terminated when a predetermined time elapses and returns to the normal cooling operation state .

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