CN114165979B - Refrigerator and operation control method for defrosting function of refrigerator - Google Patents
Refrigerator and operation control method for defrosting function of refrigerator Download PDFInfo
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- CN114165979B CN114165979B CN202111162865.4A CN202111162865A CN114165979B CN 114165979 B CN114165979 B CN 114165979B CN 202111162865 A CN202111162865 A CN 202111162865A CN 114165979 B CN114165979 B CN 114165979B
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- 238000010257 thawing Methods 0.000 title claims abstract description 260
- 238000000034 method Methods 0.000 title claims abstract description 22
- 235000013305 food Nutrition 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000003507 refrigerant Substances 0.000 claims description 17
- 238000007710 freezing Methods 0.000 claims description 12
- 230000008014 freezing Effects 0.000 claims description 12
- 230000003993 interaction Effects 0.000 claims description 10
- 230000006870 function Effects 0.000 description 69
- 238000001816 cooling Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 9
- 238000012546 transfer Methods 0.000 description 9
- 230000004308 accommodation Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 238000010411 cooking Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
Abstract
The invention discloses a refrigerator and an operation control method of a defrosting function of the refrigerator. The refrigerator comprises a defrosting containing cavity, a temperature collector, a heat exchanger and a flow reversing valve. The method comprises the following steps: responding to a preset defrosting function starting instruction, and controlling the defrosting containing cavity to enter each defrosting function operation stage in sequence; acquiring a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage; and in the operation time, controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the defrosting containing cavity so that the heat exchanger provides heat for the defrosting containing cavity or provides cold for the defrosting containing cavity, and the indoor temperature is kept near the corresponding target temperature threshold. By adopting the embodiment of the invention, the thawing chamber can be controlled to enter different operation stages, so that different storage temperatures are provided for food materials, the thawing requirements of users are met, and the quality of the food materials is ensured.
Description
Technical Field
The invention relates to the technical field of refrigerator control, in particular to a refrigerator and an operation control method of a defrosting function of the refrigerator.
Background
With the economic development and the improvement of the living standard of people, the refrigerator has become an indispensable household appliance in daily life of people. The refrigerator mainly delays food deterioration by reducing the temperature of food, thereby achieving the effect of long-term storage.
Food stored at low temperatures requires a thawing process before use, but people often do not have complete time to wait for the food to thaw completely. Sometimes people choose to defrost food from the freezing area of the refrigerator to the fresh-keeping area in advance on the morning or in the evening before or naturally defrost the food outside the refrigerator for cooking, and then cook the food after returning home in the evening. Or, before cooking, the food in the refrigerator is taken out, and is thawed by means of warm water soaking or microwave oven heating.
However, the inventors found that the prior art has at least the following problems: food is slowly thawed in the fresh-keeping area of the refrigerator, and the cooking time is likely to be not thawed; the thawing is naturally carried out outside the refrigerator, so that thawing can be completed after a few hours, but the condition that the food can be cooked after a few hours is needed, the thawed food can be accelerated to deteriorate in a normal temperature environment, nutrition and delicacy are lost, and even food deterioration and poisoning accidents occur; thawing in warm water or microwave oven can lead to rapid temperature rise and thawing of food surface, while middle part is a big ice core, which affects food delicacy.
Disclosure of Invention
The embodiment of the invention aims to provide a refrigerator and an operation control method for the defrosting function of the refrigerator, which can control a defrosting chamber to enter different operation stages of the defrosting function, so as to provide different storage temperatures for food materials, meet the defrosting requirements of users and ensure the quality of the food materials.
To achieve the above object, an embodiment of the present invention provides a refrigerator including: the device comprises a defrosting accommodating cavity, a temperature collector, a heat exchanger, a flow reversing valve and a controller;
the thawing accommodating cavity is arranged in the refrigerator body of the refrigerator and is used for storing food materials; the temperature collector and the heat exchanger are arranged in the defrosting containing cavity;
the temperature collector is used for collecting the indoor temperature of the thawing accommodating cavity at present;
the heat exchanger is connected with a heat conveying channel of the refrigerator through the flow reversing valve to provide heat for the defrosting accommodating cavity or is connected with a cold conveying channel of the refrigerator to provide cold for the defrosting accommodating cavity;
the controller is respectively connected with the temperature collector and the flow reversing valve and is used for:
responding to a preset defrosting function starting instruction, and controlling the defrosting containing cavity to enter a first defrosting function operation stage;
acquiring a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage;
controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the defrosting accommodating cavity in the operation time period so as to enable the heat exchanger to be connected with the heat conveying channel or connected with the cold conveying channel;
and after the operation duration is over, controlling the defrosting containing cavity to enter the next defrosting function operation stage.
As an improvement of the above solution, in the operating time period, according to a comparison relationship between the target temperature threshold and the indoor temperature of the thawing accommodating chamber, the flow direction control method specifically includes:
after entering a current defrosting function operation stage, if the indoor temperature of the defrosting accommodating cavity is smaller than the target temperature threshold value, controlling the initial flow direction of the flow reversing valve to be a first flow direction so as to enable the heat exchanger to be connected with the heat conveying channel; if the indoor temperature of the defrosting containing cavity is larger than the target temperature threshold, controlling the initial flow direction of the flow reversing valve to be a second flow direction so as to enable the heat exchanger to be connected with the cold quantity conveying channel;
after the initial flow direction of the flow reversing valve is controlled, in the operation time period, when the difference value between the indoor temperature of the defrosting containing cavity and the target temperature threshold value is smaller than a first temperature difference threshold value or larger than a second temperature difference threshold value, the flow reversing valve is controlled to switch the flow direction; wherein the first temperature difference threshold is less than the second temperature difference threshold.
As an improvement of the above solution, the first temperature difference threshold is smaller than 0, and the second temperature difference threshold is larger than 0.
As an improvement of the above, the refrigerator includes a condenser and an evaporator; the heat conveying channel is a refrigerant conveying channel passing through the condenser, and the cold conveying channel is a refrigerant conveying channel passing through the evaporator;
when the flow reversing valve is switched to a first flow direction, the input end of the heat exchanger is communicated with the input end of the condenser, and the output end of the heat exchanger is communicated with the output end of the condenser;
when the flow reversing valve is switched to the second flow direction, the input end of the heat exchanger is communicated with the input end of the evaporator, and the output end of the heat exchanger is communicated with the output end of the evaporator.
As an improvement of the scheme, the operation stage of the thawing function is divided into a freezing stage, a thawing stage and a fresh-keeping stage in sequence; the freezing stage corresponds to a preset target temperature threshold value which is smaller than the preserving stage corresponds to a preset target temperature threshold value, and the preserving stage corresponds to a preset target temperature threshold value which is smaller than the thawing stage corresponds to a preset target temperature threshold value.
As an improvement of the scheme, the refrigerator further comprises a flow control valve, wherein the input end of the heat exchanger is connected with the flow reversing valve through the flow control valve, and the flow control valve is used for controlling the flow through the heat exchanger.
As an improvement of the above solution, the controller is further connected to the flow control valve, and the controller is further configured to:
controlling the opening degree of the flow control valve according to the difference between the indoor temperature and the target temperature threshold;
wherein, when the heat exchanger is connected with a heat delivery channel of the refrigerator, the smaller the difference between the indoor temperature and the target temperature threshold value is, the larger the opening degree of the flow control valve is; when the heat exchanger is connected with a cold energy conveying channel of the refrigerator, the larger the difference between the indoor temperature and the target temperature threshold value is, the larger the opening degree of the flow control valve is.
As an improvement of the scheme, the refrigerator further comprises a man-machine interaction module;
the man-machine interaction module is used for receiving a defrosting function starting instruction input by a user, and setting operation duration and a target temperature threshold value for each defrosting function operation stage.
As an improvement of the above scheme, the man-machine interaction module is further configured to: after the last defrosting function operation stage is finished, executing preset information pushing operation.
The embodiment of the invention also provides an operation control method of the defrosting function of the refrigerator, which comprises the following steps: the device comprises a defrosting accommodating cavity, a temperature collector, a heat exchanger and a flow reversing valve;
the thawing accommodating cavity is arranged in the refrigerator body of the refrigerator and is used for storing food materials; the temperature collector and the heat exchanger are arranged in the defrosting containing cavity;
the temperature collector is used for collecting the indoor temperature of the thawing accommodating cavity at present;
the heat exchanger is connected with a heat conveying channel of the refrigerator through the flow reversing valve to provide heat for the defrosting accommodating cavity or is connected with a cold conveying channel of the refrigerator to provide cold for the defrosting accommodating cavity;
the method comprises the following steps:
responding to a preset defrosting function starting instruction, and controlling the defrosting containing cavity to enter a first defrosting function operation stage;
acquiring a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage;
acquiring the indoor temperature of the thawing accommodating cavity acquired by the temperature acquisition device;
controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the defrosting accommodating cavity in the operation time period so as to enable the heat exchanger to be connected with the heat conveying channel or connected with the cold conveying channel;
and after the operation duration is over, controlling the defrosting containing cavity to enter the next defrosting function operation stage.
Compared with the prior art, the refrigerator and the operation control method for the defrosting function of the refrigerator disclosed by the embodiment of the invention comprise a defrosting accommodating cavity, a temperature collector, a heat exchanger, a flow reversing valve and a controller. The controller is used for: responding to a preset defrosting function starting instruction, and controlling the defrosting containing cavity to enter each defrosting function operation stage in sequence; acquiring a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage; and in the operation time period, controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the defrosting containing cavity so as to enable the heat exchanger to be connected with the heat conveying channel to provide heat for the defrosting containing cavity or be connected with the cold conveying channel to provide cold for the defrosting containing cavity, and enabling the indoor temperature to be maintained near the corresponding target temperature threshold. By adopting the embodiment of the invention, the thawing accommodating cavity is controlled to enter different thawing functional operation stages, so that different storage temperatures are provided for food materials in the thawing accommodating cavity in different time periods, the food materials can be thawed quickly, and the food materials can be stored in a fresh-keeping way at a proper temperature after being thawed, so that the thawing requirements of users are met, the quality of the food materials is ensured, and the use experience of the users is effectively improved.
Drawings
Fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention;
fig. 2 is a schematic view of a workflow executed by a controller of a refrigerator in an embodiment of the present invention;
fig. 3 is a schematic structural view of a preferred refrigerator according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the operational phase of the defrost function in an embodiment of the invention;
FIG. 5 is a schematic diagram showing the magnitude relation between the opening of the flow control valve and the temperature difference threshold in the embodiment of the present invention;
fig. 6 is a flowchart of a method for controlling the operation of the defrosting function of a refrigerator according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a schematic structure of a refrigerator according to an embodiment of the present invention is shown. An embodiment of the present invention provides a refrigerator 10, including: the thawing holding chamber 11, the temperature collector 12, the heat exchanger 13, the flow reversing valve 14 and the controller 15.
The thawing accommodating cavity 11 is arranged in the refrigerator body of the refrigerator and is used for storing food materials; the temperature collector 12 and the heat exchanger 13 are arranged in the defrosting accommodation cavity 11;
the temperature collector 12 is used for collecting the indoor temperature of the thawing accommodating cavity 11;
the heat exchanger 13 is connected with a heat delivery channel of the refrigerator through the flow reversing valve 14 to provide heat for the defrosting containing cavity, or is connected with a cold delivery channel of the refrigerator to provide cold for the defrosting containing cavity.
The controller 15 is respectively connected with the temperature collector 12 and the flow reversing valve 14. Referring to fig. 2, a schematic diagram of a workflow executed by a controller of a refrigerator in an embodiment of the present invention. The controller 15 is configured to perform steps S11 to S14:
s11, responding to a preset defrosting function starting instruction, and controlling the defrosting containing cavity to enter a first defrosting function operation stage;
s12, acquiring a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage;
s13, controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the thawing accommodating cavity in the operation time period so as to enable the heat exchanger to be connected with the heat conveying channel or connected with the cold conveying channel;
and S14, after the operation duration is over, controlling the defrosting containing cavity to enter the next defrosting function operation stage.
In the embodiment of the present invention, an independent temperature zone, that is, the thawing holding chamber 11, is provided in the refrigerator, the indoor temperature of the temperature zone is adjustable, and the temperature adjustable range is relatively large, for example, from-20 ℃ to 30 ℃.
The defrosting accommodation chamber is provided with an independent heat exchanger 13, and the heat exchanger 13 can be switched to be communicated with a heat delivery channel or a cold delivery channel of the refrigerator through a flow reversing valve 14.
When the heat exchanger 13 is connected with the heat transfer channel, the hot refrigerant in the heat transfer channel flows through the heat exchanger 13, and then transfers heat to the defrosting accommodating cavity 11 through the heat exchanger 13, so as to heat the defrosting accommodating cavity 11, thereby increasing the indoor temperature of the defrosting accommodating cavity 11. When the heat exchanger 13 is connected to the cooling capacity conveying channel, the cooling medium in a cooling state in the cooling capacity conveying channel may flow through the heat exchanger 13, and then the cooling capacity is transferred to the defrosting accommodating cavity 11 through the heat exchanger 13, so as to cool the defrosting accommodating cavity 11, thereby reducing the indoor temperature of the defrosting accommodating cavity 11.
The refrigerator is provided with a reserved defrosting function, and in the function mode, the defrosting accommodating cavity 11 sequentially enters a plurality of preset defrosting function operation stages, and each defrosting function operation stage has a corresponding preset operation duration and a target temperature threshold.
It should be noted that, the operation duration and the target temperature threshold may be set as default values, or may be set according to actual requirements of a user. The operation duration can also be set to zero, and if the time of a certain stage is set to zero, the temperature control of the stage is not executed, and the next stage is directly entered.
Specifically, after a user puts food materials to be thawed into the thawing accommodating cavity and starts the reserved thawing function, the thawing accommodating cavity 11 is controlled to enter a first thawing function operation stage in response to a preset thawing function starting instruction; further, a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage are obtained; in the operation time period, according to the comparison relation between the target temperature threshold value and the indoor temperature of the defrosting accommodating cavity 11, controlling the flow reversing valve 14 to switch different flow directions so as to connect the heat exchanger 13 with the heat conveying channel, and providing heat for the defrosting accommodating cavity 11; or the heat exchanger 13 is connected to the heat transfer channel, so as to provide cooling capacity for the defrosting accommodating cavity 11, and finally enable the indoor temperature of the defrosting accommodating cavity 11 to be maintained near the target temperature threshold corresponding to the operating stage of the defrosting function.
And after the operation time corresponding to the operation stage of the first defrosting function is finished, controlling the defrosting containing cavity 11 to enter the operation stage of the next defrosting function, re-acquiring the operation time corresponding to the operation stage of the next defrosting function and a target temperature threshold value, and executing flow direction switching control of the flow reversing valve by combining the current indoor temperature of the defrosting containing cavity.
The embodiment of the invention provides a refrigerator which comprises a defrosting containing cavity, a temperature collector, a heat exchanger, a flow reversing valve and a controller. The controller is used for: responding to a preset defrosting function starting instruction, and controlling the defrosting containing cavity to enter each defrosting function operation stage in sequence; acquiring a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage; and in the operation time period, controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the defrosting containing cavity so as to enable the heat exchanger to be connected with the heat conveying channel to provide heat for the defrosting containing cavity or be connected with the cold conveying channel to provide cold for the defrosting containing cavity, and enabling the indoor temperature to be maintained near the corresponding target temperature threshold. By adopting the embodiment of the invention, the thawing accommodating cavity is controlled to enter different thawing functional operation stages, so that different storage temperatures are provided for food materials in the thawing accommodating cavity in different time periods, the food materials can be thawed quickly, and the food materials can be stored in a fresh-keeping way at a proper temperature after being thawed, so that the thawing requirements of users are met, the quality of the food materials is ensured, and the use experience of the users is effectively improved.
As a preferred embodiment, step S13 is specifically performed by steps S131 to S132:
s131, after entering a current defrosting function operation stage, if the indoor temperature of the defrosting accommodating cavity is smaller than the target temperature threshold value, controlling the initial flow direction of the flow reversing valve to be a first flow direction so as to enable the heat exchanger to be connected with the heat conveying channel; if the indoor temperature of the defrosting containing cavity is larger than the target temperature threshold, controlling the initial flow direction of the flow reversing valve to be a second flow direction so as to enable the heat exchanger to be connected with the cold quantity conveying channel;
s132, after the initial flow direction of the flow reversing valve is controlled, in the operation time period, when the difference value between the indoor temperature of the defrosting containing cavity and the target temperature threshold value is smaller than a first temperature difference threshold value or larger than a second temperature difference threshold value, the flow reversing valve is controlled to switch the flow direction; wherein the first temperature difference threshold is less than the second temperature difference threshold.
In the embodiment of the present invention, after entering each defrosting function operation stage, the initial flow direction of the flow reversing valve 14 is controlled according to the magnitude relation between the indoor temperature of the defrosting accommodation chamber 11 and the target temperature threshold. If the indoor temperature T of the thawing accommodation chamber is less than the target temperature threshold T set Controlling the initial flow direction of the flow reversing valve 14 to be a first flow direction, that is, the heat exchanger 13 is connected with the heat conveying channel to provide heat for the defrosting accommodating cavity 11 so as to increase the indoor temperature of the defrosting accommodating cavity 11; if the indoor temperature T of the thawing accommodation chamber 11 is greater than the target temperature threshold T set The initial flow direction of the flow reversing valve 14 is controlled to be a second flow direction, namely the heat exchanger 13 is connected with the cold energy conveying channelProviding cooling capacity for the thawing accommodating chambers 11 to reduce the indoor temperature of the thawing accommodating chambers 11.
Next, in order to avoid frequent switching control of the flow rate switching valve, after determining the initial flow direction of the flow rate switching valve 14, when the difference (T-T set ) Less than a first temperature difference threshold T 1 Or greater than a second temperature difference threshold T 2 And when the flow direction is switched, controlling the flow reversing valve to switch the flow direction.
Specifically, when the initial flow direction of the flow reversing valve 14 is the first flow direction, the indoor temperature of the defrosting accommodation chamber 11 is continuously increased under the heating control of the heat exchanger 13 until the temperature difference T-T set >T 2 The flow direction switching valve 14 is controlled to switch the flow direction, that is, to switch to the second flow direction, so as to perform refrigeration. When the initial flow direction of the flow direction valve 14 is the second flow direction, the indoor temperature of the defrosting accommodation chamber 11 is continuously reduced under the refrigeration control of the heat exchanger 13 until the temperature difference T-T set <T 1 The flow direction switching valve 14 is controlled to switch the flow direction, that is, to the first flow direction, so as to perform heating.
Preferably, the first temperature difference threshold is less than 0, and the second temperature difference threshold is greater than 0.
The first temperature difference threshold value and the second temperature difference threshold value may be set according to actual conditions, and are not particularly limited herein.
By adopting the technical means of the embodiment of the invention, the indoor temperature of the defrosting containing cavity can be effectively maintained near the target temperature threshold corresponding to the current defrosting function operation stage, the frequent switching control of the flow reversing valve can be avoided, and the temperature control logic of each operation stage is optimized.
As a preferred embodiment, referring to fig. 3, a schematic structural diagram of a preferred refrigerator according to an embodiment of the present invention is shown. The embodiment of the present invention is implemented on the basis of the above embodiment, and the refrigerator 10 includes a condenser 16 and an evaporator 17.
The heat transfer passage is a refrigerant transfer passage passing through the condenser 16, and the cold transfer passage is a refrigerant transfer passage passing through the evaporator 17. When the flow reversing valve 14 is switched to the first flow direction, the input end of the heat exchanger 13 is communicated with the input end of the condenser 16, and the output end of the heat exchanger 13 is communicated with the output end of the condenser 16; when the flow reversing valve 14 is switched to the second flow direction, the input of the heat exchanger 13 is in communication with the input of the evaporator 17, and the output of the heat exchanger 13 is in communication with the output of the evaporator 17.
As shown in fig. 3, the input end A1 of the heat exchanger can be selectively communicated with the input end B1 of the condenser through the flow reversing valve 14, and the output end A2 of the heat exchanger is communicated with the output end B2 of the condenser; or the input end A1 of the heat exchanger is communicated with the input end C1 of the evaporator, and the output end A2 of the heat exchanger is communicated with the output end C2 of the evaporator.
In the embodiment of the invention, the heat exchanger 13 is controlled by the flow reversing valve 14 to be connected in parallel to the condenser 16 on the hot side or the evaporator 17 on the cold side, so that the heat exchanger 13 releases heat to the defrosting containing cavity 11 or absorbs heat from the defrosting containing cavity 11, thereby achieving the heating or refrigerating effect.
Specifically, when the heat exchanger 13 communicates with the condenser 16 through the flow reversing valve 14, the refrigerant is split into two paths to flow through the condenser 16 and the heat exchanger 13, respectively. Since the refrigerant is in a thermal state at this time, heat of the refrigerant is transferred to the defrosting accommodating chamber through the heat exchanger 13, so that the temperature in the accommodating chamber is increased. When the heat exchanger 13 communicates with the evaporator 17 through the flow reversing valve 14, the refrigerant is split into two paths to flow through the evaporator 17 and the heat exchanger 13, respectively. Since the refrigerant is cold at this time, the heat of the defrosting chamber 11 is transferred to the refrigerant through the heat exchanger 13, so that the temperature in the chamber is reduced.
Preferably, a fan assembly is further disposed in the thawing accommodating chamber 11, and the fan assembly includes a fan and a fan cover, so as to form a circulating air flow in the thawing accommodating chamber, thereby enhancing a refrigerating effect or a heating effect.
By adopting the technical means of the embodiment of the invention, the heating or refrigerating control of the defrosting containing cavity is realized through the refrigerant transmission channels of the condenser and the evaporator which are originally configured by the refrigerator, the energy resource of the refrigerator is effectively utilized, and the temperature control strategy is simple and effective.
As a preferred embodiment, referring to fig. 4, a schematic diagram of the operation phase of the thawing function in the example of the present invention is shown. In the embodiment of the invention, the operation stage of the thawing function is divided into a freezing stage, a thawing stage and a refreshing stage in sequence. The target temperature threshold and the operation time period can be set independently in each stage.
The purpose of the freezing phase is to: sometimes the user's departure time is longer and the food thawing time is shorter, so the food is kept frozen before thawing to reduce the quality loss of the food. The purpose of the thawing phase is to: different foods have different requirements on thawing parameters, and proper time length and target temperature threshold are set to defrost the foods with optimal efficiency or effect. The aim of setting the fresh-keeping stage is that: the reasonable fresh-keeping temperature is set, so that the quality of food can be guaranteed on one hand, and the food can be in an optimal cooking state on the other hand.
Preferably, the preset target temperature threshold corresponding to the freezing stage is smaller than the preset target temperature threshold corresponding to the preserving stage, and the preset target temperature threshold corresponding to the preserving stage is smaller than the preset target temperature threshold corresponding to the thawing stage.
After a user puts food to be thawed into the thawing accommodating cavity and starts the reserved thawing function, the thawing accommodating cavity sequentially enters a freezing stage, a thawing stage and a fresh-keeping stage.
For example, the user puts food into the thawing holding cavity before 8:00 working, and the target temperature threshold values and the operation time periods corresponding to the freezing stage, the thawing stage and the fresh-keeping stage are-18 ℃/6h, 18 ℃/3h and 4 ℃/1h respectively. After the user goes to home at 18:00 a, the food in the refrigerator accommodating cavity is thawed and at the fresh-keeping temperature.
It should be noted that, after the end of the running time in the preservation stage, the temperature in the accommodating cavity is freely changed, and no temperature control is performed.
As a preferred embodiment, referring to fig. 3, the refrigerator 10 further includes a human-machine interaction module 18;
the man-machine interaction module 18 is configured to receive a defrosting function start instruction input by a user, and an operation duration and a target temperature threshold set for each defrosting function operation stage.
As an example, the user sets target temperature thresholds and operation durations of the freezing stage, the thawing stage and the refreshing stage respectively through keys or touch screens of a control panel provided on the man-machine interaction module 18, and starts the thawing function to input the thawing function starting instruction to the refrigerator.
Preferably, the man-machine interaction module is further configured to: after the last defrosting function operation stage is finished, executing preset information pushing operation.
For example, after the three stages of the scheduled thawing function are executed, the control panel reminds the user that the food is thawed by means of light, characters, sound or images, and the food can be directly taken out for cooking.
As a preferred embodiment, referring to fig. 3, the refrigerator 10 further includes a flow control valve 19, and the input end of the heat exchanger 13 is connected to the flow reversing valve 14 through the flow control valve 19, and the flow control valve 19 is used to control the flow rate flowing through the heat exchanger.
Specifically, the controller is further connected to the flow control valve, and the controller 15 is further configured to perform step S15:
s15, according to the difference delta T= (T-T) between the indoor temperature and the target temperature threshold value set ) Controlling the opening degree of the flow control valve;
wherein, when the heat exchanger is connected with a heat delivery channel of the refrigerator, the smaller the difference delta T between the indoor temperature and the target temperature threshold value is, the larger the opening degree of the flow control valve is; when the heat exchanger is connected with a cold energy conveying channel of the refrigerator, the larger the difference delta T between the indoor temperature and the target temperature threshold value is, the larger the opening degree of the flow control valve is.
In the embodiment of the invention, the opening of the flow control valve 19 is adjusted to adjust the flow of the refrigerant flowing through the heat exchanger 13, so as to adjust the heat exchange power between the heat exchanger 13 and the air in the defrosting accommodating cavity 11, thereby adjusting the heating rate or the cooling rate in the accommodating cavity.
Referring to fig. 5, a schematic diagram of the magnitude relation between the opening of the flow control valve and the temperature difference threshold in the embodiment of the present invention is shown. As an alternative embodiment, the temperature difference is determined by a temperature difference threshold T at the first temperature difference threshold T 1 To the second temperature difference threshold T 2 Setting a plurality of temperature difference thresholds, e.g. a third temperature difference threshold T, within the formed temperature range 3 And a fourth temperature threshold T 4 . The magnitude relation of the temperature difference thresholds satisfies the following conditions: t (T) 1 <T 3 <T 4 <T 2 。
Preferably T 1 <T 3 <0<T 4 <T 2 。
As an example, in one case, referring to fig. 5 (a), when the initial flow direction of the flow reversing valve 14 is the first flow direction, that is, the heat exchanger 13 is connected to the heat transfer channel of the refrigerator, the heat exchanger 13 heats the defrosting accommodating cavity 11:
when T-T set <T 1 When the temperature of the accommodating cavity is increased, the controller 15 controls the opening degree of the flow control valve 19 to be K11, so that the amount of the refrigerant flowing through the heat exchanger is large, the heat release power of the heat exchanger to the accommodating cavity is large, and the temperature of the accommodating cavity is increased rapidly.
When T is 1 <T-T set <T 3 When the opening of the flow control valve is adjusted to K12, the heat release power of the heat exchanger to the accommodating cavity is reduced, and the temperature of the accommodating cavity is slowly increased.
When T is 3 <T-T set <T 4 In this case, the opening degree of the flow control valve is adjusted to K13, and the heat release power into the storage chamber is further reduced so that the temperature of the storage chamber is as close as possible to the target temperature.
When T is 4 <T-T set <T 2 When the opening of the flow control valve is adjusted to K14, heat release power into the accommodating cavity is further reduced, and the opening of the flow control valve is smaller, so that the heat provided for the accommodating cavity is smaller, the heat dissipation capacity of the accommodating cavity to the outdoor environment is larger than the heat provided by the accommodating cavity, and the temperature of the accommodating cavity is slowly reduced.
When T-T set >T 2 At this time, the flow direction of the flow direction valve 14 is switched, that is, the flow direction valve 14 is controlled to switch to the second flow direction, and the heat exchanger 13 refrigerates the defrosting accommodating cavity 11. And the opening of the flow control valve 19 is adjusted to K21, the heat exchanger 13 rapidly absorbs heat from the accommodating cavity, and the temperature of the accommodating cavity rapidly drops.
The opening degree of the flow control valve satisfies: k11 > K12 > K13 > K14.
In another case, referring to fig. 5 (b), when the initial flow direction of the flow reversing valve 14 is the second flow direction, that is, the heat exchanger 13 is connected to the cold energy delivery channel of the refrigerator, the heat exchanger 13 refrigerates the defrosting accommodating cavity 11:
when T-T set >T 2 When the controller 15 controls the opening degree of the flow control valve 19 to be K21, so that the refrigerant amount flowing through the heat exchanger is large, the heat absorption power of the heat exchanger in the accommodating cavity is large, and the temperature of the accommodating cavity is rapidly reduced.
When T is 4 <T-T set <T 2 In this case, the opening of the flow control valve is adjusted to K22, the heat absorption power of the heat exchanger in the accommodating chamber is reduced, and the temperature of the accommodating chamber is reduced at a low speed.
When T is 3 <T-T set <T 4 In this case, the opening degree of the flow control valve is adjusted to K23, and the heat absorption power in the storage chamber is further reduced so that the temperature of the storage chamber is as close as possible to the target temperature.
When T is 1 <T-T set <T 3 When the opening of the flow control valve is adjusted to K24, the heat absorption power from the accommodating cavity is further reduced, and the opening of the flow control valve is smaller at the moment, so that the cooling capacity provided for the accommodating cavity is smaller, and the heat exchange capacity between the accommodating cavity and the outdoor environment is larger than the cooling capacity provided, so that the accommodating cavityThe temperature of (2) rises slowly.
When T-T set <T t At this time, the flow direction of the flow direction valve 14 is switched, that is, the flow direction valve 14 is controlled to switch to the first flow direction, and the heat exchanger 13 heats the defrosting accommodation cavity 11. And the opening of the flow control valve 19 is adjusted to be K11, the heat exchanger 13 rapidly releases heat into the accommodating cavity, and the temperature of the accommodating cavity rapidly rises.
The opening degree of the flow control valve satisfies: k21 > K22 > K23 > K24.
It will be appreciated that at the first temperature difference threshold T 1 To the second temperature difference threshold T 2 Within the formed temperature range, a third temperature difference threshold T can also be set 3 Fourth temperature threshold T 4 Fifth temperature difference threshold T 5 And a sixth temperature threshold T 6 . And the magnitude relation of the temperature difference thresholds satisfies the following conditions: t (T) 1 <T 3 <T 4 <0<T 5 <T 6 <T 2 . When the initial flow direction of the flow direction valve 14 is the first flow direction, the magnitude relation between the opening degree of the flow control valve and the temperature difference threshold is shown in fig. 5 (c), wherein K11 > K12 > K13 > K14 > K15 > K16; when the initial flow direction of the flow direction valve 14 is the second flow direction, the magnitude relation between the opening degree of the flow control valve and the temperature difference threshold is shown in fig. 5 (d), wherein K21 > K22 > K23 > K24 > K25 > K26.
It should be noted that the temperature of the flow reversing valve 14 may also be adjusted according to the actual situation, for example, the reversing at the temperature thresholds T3 and T6 may not affect the beneficial effects obtained by the present invention.
Of course, other numbers of temperature difference thresholds can be set according to actual conditions, and the beneficial effects obtained by the invention are not affected.
By adopting the technical means of the embodiment of the invention, the temperature adjusting effect can be obtained more quickly and more stably by setting more temperature difference thresholds.
Referring to fig. 6, a flow chart of a method for controlling the operation of the defrosting function of the refrigerator according to the embodiment of the invention is shown. The embodiment of the invention provides an operation control method for a defrosting function of a refrigerator.
Wherein, the refrigerator includes: the device comprises a defrosting accommodating cavity, a temperature collector, a heat exchanger and a flow reversing valve;
the thawing accommodating cavity is arranged in the refrigerator body of the refrigerator and is used for storing food materials; the temperature collector and the heat exchanger are arranged in the defrosting containing cavity; the temperature collector is used for collecting the indoor temperature of the thawing accommodating cavity at present; the heat exchanger is connected with a heat conveying channel of the refrigerator through the flow reversing valve to provide heat for the defrosting containing cavity or is connected with a cold conveying channel of the refrigerator to provide cold for the defrosting containing cavity.
The operation control method of the defrosting function of the refrigerator is performed through steps S21 to S25:
s21, responding to a preset defrosting function starting instruction, and controlling the defrosting containing cavity to enter a first defrosting function operation stage;
s22, acquiring a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage;
s23, acquiring the indoor temperature of the thawing accommodating cavity acquired by the temperature acquisition device;
s24, controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the defrosting accommodating cavity in the operation time period so as to enable the heat exchanger to be connected with the heat conveying channel or connected with the cold conveying channel;
and S25, after the operation duration is over, controlling the defrosting containing cavity to enter the next defrosting function operation stage.
The embodiment of the invention provides an operation control method for a defrosting function of a refrigerator. The method comprises the following steps: responding to a preset defrosting function starting instruction, and controlling the defrosting containing cavity to enter each defrosting function operation stage in sequence; acquiring a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage; and in the operation time period, controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the defrosting containing cavity so as to enable the heat exchanger to be connected with the heat conveying channel to provide heat for the defrosting containing cavity or be connected with the cold conveying channel to provide cold for the defrosting containing cavity, and enabling the indoor temperature to be kept near the corresponding target temperature threshold. By adopting the embodiment of the invention, the thawing accommodating cavity is controlled to enter different thawing functional operation stages, so that different storage temperatures are provided for food materials in the thawing accommodating cavity in different time periods, the food materials can be thawed quickly, and the food materials can be stored in a fresh-keeping way at a proper temperature after being thawed, so that the thawing requirements of users are met, the quality of the food materials is ensured, and the use experience of the users is effectively improved.
As a preferred embodiment, step S24 specifically includes:
s241, after entering a current defrosting function operation stage, if the indoor temperature of the defrosting accommodating cavity is smaller than the target temperature threshold, controlling the initial flow direction of the flow reversing valve to be a first flow direction so as to enable the heat exchanger to be connected with the heat conveying channel; if the indoor temperature of the defrosting containing cavity is larger than the target temperature threshold, controlling the initial flow direction of the flow reversing valve to be a second flow direction so as to enable the heat exchanger to be connected with the cold quantity conveying channel;
s242, after the initial flow direction of the flow reversing valve is controlled, in the operation time period, when the difference value between the indoor temperature of the defrosting containing cavity and the target temperature threshold value is smaller than a first temperature difference threshold value or larger than a second temperature difference threshold value, the flow reversing valve is controlled to switch the flow direction; wherein the first temperature difference threshold is less than the second temperature difference threshold.
Preferably, the first temperature difference threshold is less than 0, and the second temperature difference threshold is greater than 0.
By adopting the technical means of the embodiment of the invention, the indoor temperature of the defrosting containing cavity can be effectively maintained near the target temperature threshold corresponding to the current defrosting function operation stage, the frequent switching control of the flow reversing valve can be avoided, and the temperature control logic of each operation stage is optimized.
It should be noted that, in the method for controlling the operation of the defrosting function of the refrigerator according to the embodiment of the present invention, the refrigerator includes all the functional module configurations in the refrigerator according to the embodiment, and all the flow steps of the method are the same as all the flow steps executed by the controller in the refrigerator according to the embodiment, and the working principles and beneficial effects of the two are in one-to-one correspondence, so that the description is omitted.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM), a random access memory (RandomAccessMemory, RAM), or the like.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (9)
1. A refrigerator, comprising: the device comprises a defrosting accommodating cavity, a temperature collector, a heat exchanger, a flow reversing valve and a controller;
the thawing accommodating cavity is arranged in the refrigerator body of the refrigerator and is used for storing food materials; the temperature collector and the heat exchanger are arranged in the defrosting containing cavity;
the temperature collector is used for collecting the indoor temperature of the thawing accommodating cavity at present;
the heat exchanger is connected with a heat conveying channel of the refrigerator through the flow reversing valve to provide heat for the defrosting accommodating cavity or is connected with a cold conveying channel of the refrigerator to provide cold for the defrosting accommodating cavity;
the controller is respectively connected with the temperature collector and the flow reversing valve and is used for:
responding to a preset defrosting function starting instruction, and controlling the defrosting containing cavity to enter a first defrosting function operation stage;
acquiring a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage;
controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the defrosting accommodating cavity in the operation time period so as to enable the heat exchanger to be connected with the heat conveying channel or connected with the cold conveying channel;
after the operation duration is over, controlling the defrosting containing cavity to enter the next defrosting function operation stage; the thawing function operation stage is divided into a freezing stage, a thawing stage and a fresh-keeping stage in sequence;
and in the operation time period, controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the thawing accommodating cavity, wherein the flow reversing valve specifically comprises:
after entering a current defrosting function operation stage, if the indoor temperature of the defrosting accommodating cavity is smaller than the target temperature threshold value, controlling the initial flow direction of the flow reversing valve to be a first flow direction so as to enable the heat exchanger to be connected with the heat conveying channel; if the indoor temperature of the defrosting containing cavity is larger than the target temperature threshold, controlling the initial flow direction of the flow reversing valve to be a second flow direction so as to enable the heat exchanger to be connected with the cold quantity conveying channel;
after the initial flow direction of the flow reversing valve is controlled, in the operation time period, when the difference value between the indoor temperature of the defrosting containing cavity and the target temperature threshold value is smaller than a first temperature difference threshold value or larger than a second temperature difference threshold value, the flow reversing valve is controlled to switch the flow direction; wherein the first temperature difference threshold is less than the second temperature difference threshold.
2. The refrigerator of claim 1, wherein the first temperature difference threshold is less than 0 and the second temperature difference threshold is greater than 0.
3. The refrigerator of claim 1, wherein the refrigerator includes a condenser and an evaporator; the heat conveying channel is a refrigerant conveying channel passing through the condenser, and the cold conveying channel is a refrigerant conveying channel passing through the evaporator;
when the flow reversing valve is switched to a first flow direction, the input end of the heat exchanger is communicated with the input end of the condenser, and the output end of the heat exchanger is communicated with the output end of the condenser;
when the flow reversing valve is switched to the second flow direction, the input end of the heat exchanger is communicated with the input end of the evaporator, and the output end of the heat exchanger is communicated with the output end of the evaporator.
4. The refrigerator of claim 1, wherein the predetermined target temperature threshold for the freezing phase is less than the predetermined target temperature threshold for the preserving phase, and the predetermined target temperature threshold for the preserving phase is less than the predetermined target temperature threshold for the thawing phase.
5. The refrigerator of claim 1, further comprising a flow control valve, wherein an input of the heat exchanger is connected to the flow reversing valve through the flow control valve, and wherein the flow control valve is configured to control the amount of flow through the heat exchanger.
6. The refrigerator of claim 5 wherein said controller is further coupled to said flow control valve, said controller further configured to:
controlling the opening degree of the flow control valve according to the difference between the indoor temperature and the target temperature threshold;
wherein, when the heat exchanger is connected with a heat delivery channel of the refrigerator, the smaller the difference between the indoor temperature and the target temperature threshold value is, the larger the opening degree of the flow control valve is; when the heat exchanger is connected with a cold energy conveying channel of the refrigerator, the larger the difference between the indoor temperature and the target temperature threshold value is, the larger the opening degree of the flow control valve is.
7. The refrigerator of claim 1, further comprising a human-machine interaction module;
the man-machine interaction module is used for receiving a defrosting function starting instruction input by a user, and setting operation duration and a target temperature threshold value for each defrosting function operation stage.
8. The refrigerator of claim 7, wherein the human-machine interaction module is further configured to: after the last defrosting function operation stage is finished, executing preset information pushing operation.
9. An operation control method of a defrosting function of a refrigerator, the refrigerator comprising: the device comprises a defrosting accommodating cavity, a temperature collector, a heat exchanger and a flow reversing valve;
the thawing accommodating cavity is arranged in the refrigerator body of the refrigerator and is used for storing food materials; the temperature collector and the heat exchanger are arranged in the defrosting containing cavity;
the temperature collector is used for collecting the indoor temperature of the thawing accommodating cavity at present;
the heat exchanger is connected with a heat conveying channel of the refrigerator through the flow reversing valve to provide heat for the defrosting accommodating cavity or is connected with a cold conveying channel of the refrigerator to provide cold for the defrosting accommodating cavity;
the method comprises the following steps:
responding to a preset defrosting function starting instruction, and controlling the defrosting containing cavity to enter a first defrosting function operation stage;
acquiring a preset operation time length and a target temperature threshold value corresponding to the current thawing function operation stage;
acquiring the indoor temperature of the thawing accommodating cavity acquired by the temperature acquisition device;
controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the defrosting accommodating cavity in the operation time period so as to enable the heat exchanger to be connected with the heat conveying channel or connected with the cold conveying channel;
after the operation duration is over, controlling the defrosting containing cavity to enter the next defrosting function operation stage; the thawing function operation stage is divided into a freezing stage, a thawing stage and a fresh-keeping stage in sequence;
and in the operation time period, controlling the flow direction of the flow reversing valve according to the comparison relation between the target temperature threshold and the indoor temperature of the thawing accommodating cavity, wherein the flow reversing valve specifically comprises:
after entering a current defrosting function operation stage, if the indoor temperature of the defrosting accommodating cavity is smaller than the target temperature threshold value, controlling the initial flow direction of the flow reversing valve to be a first flow direction so as to enable the heat exchanger to be connected with the heat conveying channel; if the indoor temperature of the defrosting containing cavity is larger than the target temperature threshold, controlling the initial flow direction of the flow reversing valve to be a second flow direction so as to enable the heat exchanger to be connected with the cold quantity conveying channel;
after the initial flow direction of the flow reversing valve is controlled, in the operation time period, when the difference value between the indoor temperature of the defrosting containing cavity and the target temperature threshold value is smaller than a first temperature difference threshold value or larger than a second temperature difference threshold value, the flow reversing valve is controlled to switch the flow direction; wherein the first temperature difference threshold is less than the second temperature difference threshold.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08100969A (en) * | 1994-09-30 | 1996-04-16 | Kubota Corp | Heat pump device |
| KR20030041671A (en) * | 2001-11-21 | 2003-05-27 | 엘지전자 주식회사 | Refrigerator with thawing chamber |
| CN205939879U (en) * | 2016-07-11 | 2017-02-08 | 九阳股份有限公司 | Refrigerator and refrigerating system thereof |
| CN208549820U (en) * | 2017-12-22 | 2019-03-01 | 潍坊汇和机械工程有限公司 | Low temperature and high relative humidity heat pump thawing equipment |
| CN109631463A (en) * | 2017-10-09 | 2019-04-16 | 青岛海尔智能技术研发有限公司 | Refrigerator |
| CN110887290A (en) * | 2019-11-26 | 2020-03-17 | 珠海格力电器股份有限公司 | Compartment with thawing and freezing functions, refrigerator and thawing control method |
| CN111059709A (en) * | 2019-12-31 | 2020-04-24 | 海信（山东）空调有限公司 | Control method of air conditioner and air conditioner |
| CN111407123A (en) * | 2020-04-24 | 2020-07-14 | 珠海格力电器股份有限公司 | Control method for reducing temperature fluctuation, temperature control device and display cabinet |
| WO2020220789A1 (en) * | 2019-04-30 | 2020-11-05 | 青岛海尔电冰箱有限公司 | Thawing method for refrigeration and freezing equipment and refrigeration and freezing equipment |
| CN112179017A (en) * | 2020-09-30 | 2021-01-05 | 珠海格力电器股份有限公司 | Refrigeration equipment with unfreezing function and control method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870857B (en) * | 2017-05-09 | 2020-07-03 | 合肥华凌股份有限公司 | Meat supercooling preservation control method, controller and refrigerator |
-
2021
- 2021-09-30 CN CN202111162865.4A patent/CN114165979B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08100969A (en) * | 1994-09-30 | 1996-04-16 | Kubota Corp | Heat pump device |
| KR20030041671A (en) * | 2001-11-21 | 2003-05-27 | 엘지전자 주식회사 | Refrigerator with thawing chamber |
| CN205939879U (en) * | 2016-07-11 | 2017-02-08 | 九阳股份有限公司 | Refrigerator and refrigerating system thereof |
| CN109631463A (en) * | 2017-10-09 | 2019-04-16 | 青岛海尔智能技术研发有限公司 | Refrigerator |
| CN208549820U (en) * | 2017-12-22 | 2019-03-01 | 潍坊汇和机械工程有限公司 | Low temperature and high relative humidity heat pump thawing equipment |
| WO2020220789A1 (en) * | 2019-04-30 | 2020-11-05 | 青岛海尔电冰箱有限公司 | Thawing method for refrigeration and freezing equipment and refrigeration and freezing equipment |
| CN110887290A (en) * | 2019-11-26 | 2020-03-17 | 珠海格力电器股份有限公司 | Compartment with thawing and freezing functions, refrigerator and thawing control method |
| CN111059709A (en) * | 2019-12-31 | 2020-04-24 | 海信（山东）空调有限公司 | Control method of air conditioner and air conditioner |
| CN111407123A (en) * | 2020-04-24 | 2020-07-14 | 珠海格力电器股份有限公司 | Control method for reducing temperature fluctuation, temperature control device and display cabinet |
| CN112179017A (en) * | 2020-09-30 | 2021-01-05 | 珠海格力电器股份有限公司 | Refrigeration equipment with unfreezing function and control method thereof |
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Address after: 528300 No. 8, Rong Gang Road, Ronggui street, Shunde District, Foshan, Guangdong. Applicant after: HISENSE HOME APPLIANCE GROUP Co.,Ltd. Applicant after: Hisense refrigerator Co.,Ltd. Address before: 528300 No. 8, Rong Gang Road, Ronggui street, Shunde District, Foshan, Guangdong. Applicant before: HISENSE HOME APPLIANCE GROUP Co.,Ltd. Applicant before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
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