CN111351310A - Refrigeration equipment, defrosting control method and device thereof, and storage medium - Google Patents
Refrigeration equipment, defrosting control method and device thereof, and storage medium Download PDFInfo
- Publication number
- CN111351310A CN111351310A CN202010218148.8A CN202010218148A CN111351310A CN 111351310 A CN111351310 A CN 111351310A CN 202010218148 A CN202010218148 A CN 202010218148A CN 111351310 A CN111351310 A CN 111351310A
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- Prior art keywords
- temperature
- refrigeration
- refrigerating
- defrosting
- control method
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
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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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
Abstract
The embodiment of the invention provides refrigeration equipment, a defrosting control method and a defrosting control device of the refrigeration equipment, and a storage medium, and belongs to the field of electrical appliances. The refrigeration equipment comprises a refrigerating chamber, an evaporator and a refrigerating fan are arranged in the refrigerating chamber, and the control method comprises the following steps: under the condition that the refrigerating chamber stops refrigerating, acquiring the temperature of the refrigerating chamber; and controlling the refrigeration fan to be started to defrost the evaporator under the condition that the temperature of the compartment is higher than the defrosting temperature; wherein the defrost temperature is between a refrigeration shutdown point temperature and a refrigeration startup point temperature. Through the technical scheme, the refrigerating fan can be ensured to have enough downtime, so that the service life of the refrigerating fan is protected to a certain extent, and the running time of the refrigerating fan in the defrosting process is reduced, so that the humidity of the refrigerating chamber is kept.
Description
Technical Field
The invention relates to the field of electric appliances, in particular to refrigeration equipment, a defrosting control method and a defrosting control device of the refrigeration equipment, and a storage medium.
Background
Some refrigerators currently have an evaporator in the refrigeration compartment to improve the refrigeration performance of the refrigerator. In order to avoid frosting of an evaporator in the refrigerating chamber, the refrigerator can detect the temperature of the refrigerating chamber through the temperature sensor, and when the temperature of the refrigerating chamber is lower than a refrigerating stop point, namely the refrigerating chamber does not refrigerate any more, a fan in the refrigerating chamber is started to blow air through a fan of the fan to melt the frost on the surface of the evaporator. And when the temperature of the evaporator is detected to be higher than the defrosting exit temperature, the defrosting is exited. When the temperature of the refrigerating chamber is higher than the refrigerating starting point, the refrigerating chamber starts to be refrigerated, and the fan is started to assist in refrigerating the refrigerating chamber. The above process is circularly executed, and the frost layer on the evaporator can be effectively removed. However, in the above cycle process, the fans in the refrigerating chamber need to be started in the processes of refrigeration and defrosting of the refrigerator, which results in too long starting time of the fans in the refrigerating chamber, and therefore, on one hand, the service life of the fans can be shortened, and on the other hand, the reduction of the power consumption of the refrigerator is not facilitated. Moreover, the fan is always turned on in the defrosting state, which also easily causes the humidity in the refrigerating chamber to decrease, and further causes the food in the refrigerating chamber to be dry.
Disclosure of Invention
To at least partially solve the above problems in the prior art, an object of an embodiment of the present invention is to provide a refrigeration apparatus, a control method and a control device for defrosting the refrigeration apparatus, and a storage medium.
In order to achieve the above object, in a first aspect of embodiments of the present invention, there is provided a control method for defrosting a refrigeration apparatus including a refrigerating chamber in which an evaporator and a refrigerating fan are provided, the control method including: under the condition that the refrigerating chamber stops refrigerating, acquiring the temperature of the refrigerating chamber; and controlling the refrigeration fan to be started to defrost the evaporator under the condition that the temperature of the compartment is higher than the defrosting temperature; wherein the defrost temperature is between a refrigeration shutdown point temperature and a refrigeration startup point temperature.
Optionally, the control method further includes: acquiring the ambient temperature around the refrigeration equipment; determining a temperature difference between the refrigeration starting point temperature and the defrosting temperature according to the environment temperature; and determining the defrosting temperature according to the temperature difference and the refrigeration starting point temperature; wherein the temperature difference is positively correlated with the ambient temperature.
Optionally, the control method further includes: detecting an evaporator temperature of the evaporator; and controlling the refrigeration fan to be closed under the condition that the temperature of the evaporator is higher than the defrosting exit temperature.
Optionally, an auxiliary heating device is arranged in the refrigerating fan, and the control method further includes: and controlling the auxiliary heating device to be started under the condition that the ambient temperature is higher than a preset temperature threshold value.
Optionally, the controlling the auxiliary heating device to be turned on includes: and controlling the auxiliary heating device to be opened intermittently at preset time intervals.
Optionally, the control method further includes: determining the time interval based on the ambient temperature.
In a second aspect of an embodiment of the present invention, there is provided a control device for defrosting a refrigeration appliance, the control device including: the defrosting control method for the refrigeration equipment comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the computer program to realize the control method for defrosting of the refrigeration equipment.
In a third aspect of embodiments of the present invention, there is provided a refrigeration apparatus comprising: the evaporator and the refrigerating fan are arranged in a refrigerating chamber of the refrigerating equipment; the temperature sensor is used for detecting the room temperature of the refrigerating chamber; and the control device for defrosting the refrigeration equipment.
Optionally, the refrigeration device is a refrigerator or freezer.
In a fourth aspect of embodiments of the present invention, there is provided a machine-readable storage medium having stored thereon instructions for enabling a processor to execute the above-described control method for defrosting a refrigeration appliance when the instructions are executed by the processor.
Through the technical scheme, when the refrigerating chamber stops refrigerating, the refrigerating fan cannot be started immediately, but is started after the temperature of the refrigerating chamber rises to the defrosting temperature, so that the power consumption of the refrigerating equipment is reduced, the refrigerating fan can be ensured to have enough downtime, the service life of the refrigerating fan is protected to a certain extent, and the running time of the refrigerating fan in the defrosting process is reduced, and the humidity of the refrigerating chamber is kept.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a flowchart illustrating a control method for defrosting a refrigeration apparatus according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a control method for defrosting a refrigeration unit according to an embodiment of the present invention;
FIG. 3 illustrates a flow chart of a control method for defrosting a refrigeration unit according to an alternative embodiment of the present invention; and
fig. 4 is a block diagram schematically illustrating a refrigeration apparatus according to an embodiment of the present invention.
Description of the reference numerals
10 compressor 20 refrigeration fan
30 temperature sensor 40 control device
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Fig. 1 is a flowchart illustrating a control method for defrosting a refrigeration apparatus according to an embodiment of the present invention. As shown in fig. 1, the embodiment of the invention provides a control method for defrosting a refrigeration device, the refrigeration device may include a refrigerating chamber, and an evaporator and a refrigerating fan may be arranged in the refrigerating chamber. The control method for defrosting the refrigeration equipment can comprise the following steps:
in step S11, when it is determined that cooling in the refrigerating compartment is stopped, the compartment temperature in the refrigerating compartment is acquired.
And step S12, controlling the refrigeration fan to be started to defrost the evaporator under the condition that the room temperature is higher than the defrosting temperature. Wherein the defrost temperature is between the refrigeration stop point temperature and the refrigeration start point temperature.
Therefore, when the refrigerating chamber stops refrigerating, the refrigerating fan cannot be started immediately, but is started after the temperature of the refrigerating chamber rises to the defrosting temperature, so that the power consumption of refrigerating equipment is reduced, the refrigerating fan can be guaranteed to have enough downtime, the service life of the refrigerating fan is protected to a certain extent, and the running time of the refrigerating fan in the defrosting process is reduced, and the humidity of the refrigerating chamber is kept.
In particular, as shown in fig. 2, the refrigeration device may be, for example, a refrigerator or freezer or the like. The refrigeration appliance may include a plurality of compartments, such as a refrigerating compartment, a freezing compartment and a warming compartment. The evaporator and the refrigerating fan can be arranged in the refrigerating chamber, the evaporator, the compressor and other devices form a refrigerating system of the refrigerating equipment, when the compressor is started, the refrigerating system operates, and the evaporator absorbs heat in the refrigerating chamber, so that the temperature in the refrigerating chamber is reduced. The refrigerating fan can assist the refrigerating chamber to refrigerate through blowing on one hand, and can remove frost on the surface of the evaporator when the refrigerating chamber is not refrigerated on the other hand. In the present embodiment, the control device of the refrigeration apparatus may detect the temperature of the internal space of the refrigerating chamber (i.e., the compartment temperature) by a compartment temperature sensor installed in the refrigerating chamber, start the compressor and refrigerate the refrigerating chamber by the evaporator in the refrigerating chamber when the compartment temperature reaches a refrigerating start point or more, and stop refrigerating the refrigerating chamber when the compartment temperature reaches a refrigerating stop point or less. When the temperature of the compartment reaches below a refrigeration stop point, the control device determines that the refrigerating compartment stops refrigerating, at the moment, the evaporator enters a natural defrosting stage, the refrigerating fan stops running, and the evaporator naturally rises through the temperature to defrost. The control device continuously obtains the room temperature of the refrigerating chamber, and controls the refrigerating fan to be started to melt the frost on the surface of the evaporator in a mode of blowing air to the surface of the evaporator under the condition that the room temperature of the refrigerating chamber is determined to be higher than the defrosting temperature. The evaporator surface may be provided with a defrost temperature sensor for detecting an evaporator temperature, and the control means may acquire the evaporator temperature from the defrost temperature sensor and, in a case where it is determined that the evaporator temperature is higher than the defrost exit temperature, turn off the refrigerating fan to exit the defrost process. And when the control device determines that the temperature of the refrigerating chamber reaches the refrigerating starting point or above, the compressor is started again to refrigerate the refrigerating chamber through the evaporator, and the refrigerating fan is started to assist in refrigerating. Under the condition that the temperature of the compartment of the refrigerating chamber does not rise to the defrosting temperature and the temperature of the evaporator reaches the defrosting exit temperature, the defrosting process can be finished without starting a refrigerating fan. In the embodiment, the defrosting temperature is between the refrigerating stop point temperature and the refrigerating start point temperature, so that the refrigerating fan cannot be started immediately when the refrigerating chamber stops refrigerating, the refrigerating fan has enough stop time, the service life of the refrigerating fan is protected to a certain extent, and the humidity of the refrigerating chamber is kept by reducing the running time of the refrigerating fan in the defrosting process.
Fig. 3 is a flow chart illustrating a control method for defrosting a refrigeration apparatus according to an alternative embodiment of the present invention. As shown in fig. 3, in an alternative embodiment of the present invention, the control method may further include:
in step S21, the ambient temperature around the refrigeration equipment is acquired.
And step S22, determining the temperature difference between the refrigeration starting point temperature and the defrosting temperature according to the acquired environment temperature, wherein the temperature difference is positively correlated with the environment temperature.
And step S23, determining the defrosting temperature according to the determined temperature difference and the refrigeration starting point temperature.
Specifically, the refrigeration equipment can be further provided with an ambient temperature sensor, and the ambient temperature around the refrigeration equipment can be detected through the ambient temperature sensor. The defrost temperature of the refrigeration compartment may be determined by both the refrigeration start point temperature and the ambient temperature. The defrosting temperature can be calculated according to the temperature difference between the defrosting temperature and the refrigerating starting point temperature. It should be noted that the higher the ambient temperature around the refrigeration equipment is, the longer the compressor of the refrigeration equipment is turned on, and thus the greater the frost formation amount of the evaporator is. Therefore, the temperature difference between the defrosting temperature and the refrigerating starting point temperature can be positively correlated with the ambient temperature, namely the higher the ambient temperature is, the larger the temperature difference is, so that the lower the defrosting temperature is, the earlier the refrigerating fan is started, and the defrosting speed of the evaporator is accelerated. The corresponding relationship between the ambient temperature and the temperature difference may be determined in advance through experiments or experiences, and the corresponding relationship may be pre-stored in a memory of the control device, and the control device may obtain the corresponding relationship from the memory to determine the temperature difference from the detected ambient temperature. So, through detecting the actual ambient temperature around the refrigeration plant to confirm defrosting temperature according to this ambient temperature, can make the operating time of cold-stored fan and the frosting volume of evaporimeter corresponding, thereby can be under the prerequisite of guaranteeing the defrosting effect, the operating time of the cold-stored fan of minimize, with the life of extension cold-stored fan, and reduce the humidity decline of walk-in.
In an optional embodiment of the present invention, an auxiliary heating device may be disposed in the refrigerating fan, and the control method may further include: and controlling the auxiliary heating device to be started under the condition that the ambient temperature is higher than a preset temperature threshold value. In particular, when the ambient temperature is too high, the amount of frost formation of the evaporator is also large. Therefore, the auxiliary heating device can be arranged in the refrigerating fan to properly heat the air flow output by the refrigerating fan, so that the defrosting speed of the evaporator is increased, and the running time of the refrigerating fan is reduced. Wherein, in order to reduce the influence on the refrigerated food in the refrigerating chamber, the auxiliary heating device can be opened intermittently at preset time intervals, and the time interval can be determined according to the ambient temperature around the refrigerating equipment, namely the higher the ambient temperature is, the shorter the time interval is, thereby heating the airflow output by the refrigerating fan more frequently to improve the defrosting speed.
Correspondingly, the embodiment of the invention also provides a control device for defrosting of refrigeration equipment, and the control device can comprise: the control method for defrosting the refrigeration equipment comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor executes the computer program to realize the control method for defrosting the refrigeration equipment.
Fig. 4 is a block diagram schematically illustrating a refrigeration apparatus according to an embodiment of the present invention. As shown in fig. 4, the embodiment of the present invention further provides a refrigeration device, which may be a refrigerator or an ice chest. Specifically, the refrigerating apparatus may include a compressor 10, an evaporator (not shown), a refrigerating fan 20, a temperature sensor 30, and a control device 40. The evaporator and the refrigerating fan 20 may be disposed in a refrigerating chamber of the refrigeration apparatus, and the evaporator and the compressor 10 and other devices form a refrigeration system of the refrigeration apparatus. The temperature sensor 30 is used to detect the compartment temperature of the refrigerating compartment. The control device 40 is electrically connected to the compressor 10, the refrigerating fan 20 and the temperature sensor 30, and the control device 40 can obtain the compartment temperature of the refrigerating compartment from the temperature sensor 30 and control the refrigerating fan 20 and the compressor 10 to implement the above-mentioned control method for defrosting the refrigeration equipment.
Furthermore, the present invention also provides a machine-readable storage medium, which stores instructions thereon, and the instructions are used for enabling a processor to execute the control method for defrosting a refrigeration device when the instructions are executed by the processor.
While the invention has been described in detail with reference to the drawings, the invention is not limited to the details of the embodiments, and various simple modifications can be made within the technical spirit of the embodiments of the invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention will not be described separately for the various possible combinations.
Those skilled in the art will appreciate that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes instructions for causing a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the idea of the embodiments of the present invention.
Claims (10)
1. A control method for defrosting of refrigeration equipment is characterized in that the refrigeration equipment comprises a refrigerating chamber, an evaporator and a refrigerating fan are arranged in the refrigerating chamber, and the control method comprises the following steps:
under the condition that the refrigerating chamber stops refrigerating, acquiring the temperature of the refrigerating chamber; and
under the condition that the temperature of the compartment is higher than the defrosting temperature, controlling the refrigeration fan to be started to defrost the evaporator;
wherein the defrost temperature is between a refrigeration shutdown point temperature and a refrigeration startup point temperature.
2. The control method according to claim 1, characterized by further comprising:
acquiring the ambient temperature around the refrigeration equipment;
determining a temperature difference between the refrigeration starting point temperature and the defrosting temperature according to the environment temperature; and
determining the defrosting temperature according to the temperature difference and the refrigerating starting point temperature;
wherein the temperature difference is positively correlated with the ambient temperature.
3. The control method according to claim 1, characterized by further comprising:
detecting an evaporator temperature of the evaporator; and
and controlling the refrigeration fan to be closed under the condition that the temperature of the evaporator is higher than the defrosting exit temperature.
4. The control method according to claim 2, wherein an auxiliary heating device is provided in the refrigerating fan, and the control method further comprises:
and controlling the auxiliary heating device to be started under the condition that the ambient temperature is higher than a preset temperature threshold value.
5. The control method according to claim 4, wherein the controlling of the auxiliary heating device to be turned on includes:
and controlling the auxiliary heating device to be opened intermittently at preset time intervals.
6. The control method according to claim 5, characterized by further comprising:
determining the time interval based on the ambient temperature.
7. A control for defrosting a refrigeration appliance, the control comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the computer program to implement the control method for defrosting a refrigeration device according to any one of claims 1 to 6.
8. A refrigeration appliance, characterized in that it comprises:
the evaporator and the refrigerating fan are arranged in a refrigerating chamber of the refrigerating equipment;
the temperature sensor is used for detecting the room temperature of the refrigerating chamber; and
a control for defrosting a refrigeration unit as set forth in claim 7.
9. The refrigeration appliance according to claim 8, wherein the refrigeration appliance is a refrigerator or freezer.
10. A machine-readable storage medium having stored thereon instructions for enabling a processor to execute the control method for defrosting a refrigeration appliance according to any one of claims 1 to 6 when the instructions are executed by the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218148.8A CN111351310A (en) | 2020-03-25 | 2020-03-25 | Refrigeration equipment, defrosting control method and device thereof, and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218148.8A CN111351310A (en) | 2020-03-25 | 2020-03-25 | Refrigeration equipment, defrosting control method and device thereof, and storage medium |
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| CN111351310A true CN111351310A (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010218148.8A Pending CN111351310A (en) | 2020-03-25 | 2020-03-25 | Refrigeration equipment, defrosting control method and device thereof, and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944798A (en) * | 2021-03-09 | 2021-06-11 | 珠海格力电器股份有限公司 | Refrigerator control method, refrigerator and storage medium |
| CN114061251A (en) * | 2020-07-31 | 2022-02-18 | 深圳Tcl新技术有限公司 | Refrigerator defrosting method, intelligent refrigerator and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104329872A (en) * | 2014-10-24 | 2015-02-04 | 海信容声(广东)冰箱有限公司 | Refrigerator evaporator defrosting method |
| CN107062793A (en) * | 2017-03-27 | 2017-08-18 | 合肥华凌股份有限公司 | Refrigerate nature return air defrosting control method and control system |
| CN110108086A (en) * | 2019-05-21 | 2019-08-09 | 合肥美的电冰箱有限公司 | Single system refrigerator, the control system for it and control method and storage medium |
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2020
- 2020-03-25 CN CN202010218148.8A patent/CN111351310A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329872A (en) * | 2014-10-24 | 2015-02-04 | 海信容声(广东)冰箱有限公司 | Refrigerator evaporator defrosting method |
| CN107062793A (en) * | 2017-03-27 | 2017-08-18 | 合肥华凌股份有限公司 | Refrigerate nature return air defrosting control method and control system |
| CN110108086A (en) * | 2019-05-21 | 2019-08-09 | 合肥美的电冰箱有限公司 | Single system refrigerator, the control system for it and control method and storage medium |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061251A (en) * | 2020-07-31 | 2022-02-18 | 深圳Tcl新技术有限公司 | Refrigerator defrosting method, intelligent refrigerator and storage medium |
| CN114061251B (en) * | 2020-07-31 | 2023-08-01 | 深圳Tcl新技术有限公司 | Refrigerator defrosting method, intelligent refrigerator and storage medium |
| CN112944798A (en) * | 2021-03-09 | 2021-06-11 | 珠海格力电器股份有限公司 | Refrigerator control method, refrigerator and storage medium |
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