CN105222516A - Refrigerator and control method thereof - Google Patents
Refrigerator and control method thereof Download PDFInfo
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- CN105222516A CN105222516A CN201510719179.0A CN201510719179A CN105222516A CN 105222516 A CN105222516 A CN 105222516A CN 201510719179 A CN201510719179 A CN 201510719179A CN 105222516 A CN105222516 A CN 105222516A
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Abstract
The present invention relates to refrigerator and control method thereof.Particularly, the invention provides a kind of refrigerator, the temperature compensation means comprising in it refrigerating chamber being provided with cryogenic temperature sensor, the refrigerating chamber being provided with refrigerated storage temperature sensor in it, refrigeration system and be arranged in refrigerating chamber.Temperature compensation means is configured to controllably open more than during a variations in temperature threshold value in the temperature change value of refrigerating chamber within a thermometric cycle.Refrigerant system configuration becomes to start when the temperature in refrigerating chamber is increased to the first refrigeration system start-up temperature threshold value.The present invention also provides a kind of control method of refrigerator, comprising: under refrigeration system is in halted state, obtains the temperature change value of refrigerating chamber within a thermometric cycle; When the temperature rising in refrigerating chamber makes temperature change value more than a variations in temperature threshold value, open temperature compensation means; When the temperature in refrigerating chamber is increased to the first refrigeration system start-up temperature threshold value, starts refrigeration system, make it provide cold to refrigerating chamber and refrigerating chamber.
Description
Technical field
The present invention relates to household electrical appliance, particularly relate to a kind of refrigerator and control method thereof.
Background technology
Usually, the refrigerating circuit of single system refrigerator all adopts single cycle mode, and namely refrigerating chamber and refrigerating chamber arrange an evaporimeter respectively, itself and the refrigerating circuit in series such as compressor, condenser.The temperature in refrigerating chamber is depended in the start and stop of compressor, and when the temperature namely in refrigerating chamber is higher than its design temperature, compressor operating, the temperature in refrigerating chamber and refrigerating chamber declines simultaneously, until the temperature in it is lower than setting shutdown temperature.Because the temperature in refrigerating chamber does not control the startup of compressor, when refrigerating chamber is disposable insert a large amount of warm article time, temperature in refrigerating chamber raises instantaneously, and refrigerating chamber still remains in the temperature range of defined, compressor can not start, refrigerating chamber is not lowered the temperature, and is unfavorable for the freezing of food, reduces the refrigerating capacity of refrigerating chamber.
In order to solve the problems of the technologies described above, control the start and stop of compressor in prior art according to the temperature of refrigerating chamber, and a temperature compensation means is set in refrigerating chamber, when making its temperature in refrigerating chamber too low, in refrigerating chamber, provide heat.But this mode can only avoid the food in refrigerating chamber to be damaged by frost to a certain extent, the short time after can not putting into article in refrigerating chamber reduces the temperature of refrigerating chamber rapidly, affects the refrigerating capacity of refrigerating chamber.
Summary of the invention
An object of first aspect present invention is intended to overcome at least one defect of the prior art, provides a kind of controlling method for refrigerator that can reduce freezer temperature fast, improve refrigerator freezing ability.
Another object of first aspect present invention reduces the energy consumption of refrigerator.
The object of second aspect present invention is to provide a kind of refrigerator.
According to a first aspect of the invention, the invention provides a kind of control method of refrigerator, described refrigerator comprises refrigerating chamber, have the refrigerating chamber of temperature compensation means and for providing the refrigeration system of cold for described refrigerating chamber and described refrigerating chamber, described control method comprises:
Under described refrigeration system is in halted state, obtain the temperature change value of described refrigerating chamber within a thermometric cycle;
When the temperature rising in described refrigerating chamber makes described temperature change value more than a variations in temperature threshold value, open described temperature compensation means, make it provide heat to described refrigerating chamber, raise to make the temperature in described refrigerating chamber; With
When the temperature in described refrigerating chamber is increased to the first refrigeration system start-up temperature threshold value, start described refrigeration system, make it provide cold to described refrigerating chamber and described refrigerating chamber.
Alternatively, when the temperature in described refrigerating chamber is increased to the first refrigeration system start-up temperature threshold value, also comprise after starting described refrigeration system:
Close described temperature compensation means.
Alternatively, also comprise after the described refrigeration system of startup:
Obtain the temperature in described refrigerating chamber and/or described refrigerating chamber; With
When the temperature in described refrigerating chamber is reduced to below the first refrigeration system stopping temperature threshold, and/or when the temperature in described refrigerating chamber is reduced to below the second refrigeration system stopping temperature threshold, make described refrigeration system out of service.
Alternatively, also comprise after the described refrigeration system of startup:
Calculate described refrigeration system time of continuous service after this starts, and time of described continuous service more than a continuous working period threshold value after make described refrigeration system out of service.
Alternatively, described control method also comprises:
When the temperature change value of described refrigerating chamber within the thermometric cycle is less than described variations in temperature threshold value, obtain the temperature in described refrigerating chamber and described refrigerating chamber; With
When the temperature in described refrigerating chamber higher than temperature during the second refrigeration system start-up temperature threshold value or in described refrigerating chamber higher than described first refrigeration system start-up temperature threshold value time, start described refrigeration system.
Alternatively, described temperature compensation means comprise in electrical heating wire, illuminating lamp and PTC heat generating member any one or multiple.
Alternatively, the described thermometric cycle is the preset value of scope between 5 ~ 15 minutes, described variations in temperature threshold value is the preset value of scope between 5 ~ 10 degrees Celsius, and described first refrigeration system start-up temperature threshold value is the preset value of scope between 7 ~ 10 degrees Celsius.
Alternatively, described first refrigeration system stops temperature threshold to be the preset value of scope between 2 ~ 5 degrees Celsius, and described second refrigeration system stops temperature threshold to be the preset value of scope between-18 ~-12 degrees Celsius.
According to a second aspect of the invention, the present invention also provides a kind of refrigerator, comprising:
Refrigerating chamber, is provided with cryogenic temperature sensor in it, to detect the temperature in described refrigerating chamber;
Refrigerating chamber, is provided with refrigerated storage temperature sensor in it, to detect the temperature in described refrigerating chamber;
Temperature compensation means, is arranged in described refrigerating chamber, and is configured to controllably open more than during a variations in temperature threshold value in the temperature change value of described refrigerating chamber within a thermometric cycle, to provide heat to described refrigerating chamber, the temperature in it is raised; With
Refrigeration system, is configured to start when the temperature in described refrigerating chamber is increased to the first refrigeration system start-up temperature threshold value, to provide cold to described refrigerating chamber and described refrigerating chamber.
Alternatively, described temperature compensation means is also configured to controllably cut out after described refrigeration system starts.
When refrigerating chamber inserts warm article (temperature is lower than the article of freezing indoor temperature), the temperature in refrigerating chamber can sharply raise at short notice.Controlling method for refrigerator of the present invention is by judging whether the temperature change value of refrigerating chamber within a thermometric cycle carrys out opening or closing of control temperature compensation arrangement more than a variations in temperature threshold value, temperature compensation means can be opened in short time after warm article inserted by refrigerating chamber, the temperature in refrigerating chamber is made to raise rapidly pre-cooling refrigeration system, thus extend the running time of refrigeration system, the temperature in refrigerating chamber is declined rapidly.Meanwhile, under the effect of temperature compensation means, the temperature in refrigerating chamber can not drop to very low, both ensure that the normal fresh-keeping function of refrigerating chamber, has turn improved the refrigerating capacity of refrigerating chamber.
Further, in controlling method for refrigerator of the present invention, close temperature compensation means after starting refrigeration system, temperature compensation means continuous firing can be avoided to cause the temperature in refrigerating chamber to remain high, thus avoid refrigeration system continuous firing to cause the technical problem that the energy consumption of refrigerator is larger.
According to hereafter by reference to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present invention more.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present invention with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is the schematic block diagram of refrigerator according to an embodiment of the invention;
Fig. 2 is the indicative flowchart of the control method of refrigerator according to an embodiment of the invention;
Fig. 3 is the indicative flowchart of the control method of refrigerator in accordance with another embodiment of the present invention.
Detailed description of the invention
The embodiment of the present invention relates to a kind of refrigerator, and Fig. 1 is the schematic block diagram of refrigerator according to an embodiment of the invention, and refrigerator 10 can comprise refrigerating chamber 100, refrigerating chamber 200, temperature compensation means 300 and refrigeration system 400.Cryogenic temperature sensor 110 is provided with, to detect the temperature in refrigerating chamber 100 in refrigerating chamber 100.Refrigerated storage temperature sensor 210 is provided with, to detect the temperature in refrigerating chamber 200 in refrigerating chamber 200.Temperature compensation means 300 is arranged in refrigerating chamber 200, and is configured to controllably open more than during a variations in temperature threshold value in the temperature change value of refrigerating chamber 100 within a thermometric cycle, to provide heat to refrigerating chamber 200, the temperature in it is raised.Refrigeration system 400 is configured to start when the temperature in refrigerating chamber 200 is increased to the first refrigeration system start-up temperature threshold value, to provide cold to refrigerating chamber 100 and refrigerating chamber 200.
Further, see Fig. 1, refrigerator 10 can comprise control device 600, and it is electrically connected with cryogenic temperature sensor 110, refrigerated storage temperature sensor 210, temperature compensation means 300 and refrigeration system 400.The internal preset of control device 600 has a thermometric cycle, a variations in temperature threshold value and the first refrigeration system start-up temperature threshold value, and the freezer temperature of cryogenic temperature sensor 110 acquisition can be received in real time or periodically, to judge whether the temperature change value of refrigerating chamber 100 within this thermometric cycle exceedes this variations in temperature threshold value.When control device 600 determines that the temperature change value of refrigerating chamber 100 within this thermometric cycle exceedes this variations in temperature threshold value, control device 600 can send to temperature compensation means 300 control signal making it open.Control device 600 also can receive the temperature of refrigerating chamber that refrigerated storage temperature sensor 210 obtains simultaneously, to judge that refrigerating chamber 200 carries out in the process of temperature-compensating at temperature compensation means 300 to it, whether the temperature in refrigerating chamber 200 is increased to the first refrigeration system start-up temperature threshold value.When the temperature that control device 600 is determined in refrigerating chamber 200 is increased to the first refrigeration system start-up temperature threshold value, control device 600 can send to refrigeration system 400 control signal making its startup optimization.
Particularly, control device 600 can be the master control borad of refrigerator 10, can also be the extra control circuit arranged separately.Refrigeration system 400 is specifically as follows compression refrigerating system, semiconductor refrigeration system or other refrigeration systems.For refrigeration system 200 for compression refrigerating system, refrigeration system 400 can comprise compressor, condenser, evaporimeter and restricting element.Particularly, in embodiments of the present invention, evaporimeter can comprise the refrigerating evaporator be arranged in refrigerating chamber 100 and the refrigeration evaporator be arranged in refrigerating chamber 200, and refrigerating evaporator, refrigeration evaporator, compressor, condenser and restricting element are arranged in series.Namely during compressor start, refrigerating chamber 100 and refrigerating chamber 200 can carry out refrigeration work simultaneously, temperature in it declines simultaneously.Temperature compensation means 300 can be arranged at the position of the contiguous refrigeration evaporator in refrigerating chamber 200.
Further, temperature compensation means 300 is also configured to controllably cut out after refrigeration system 400 starts.That is to say, after sending at control device 600 control signal making refrigeration system 400 startup optimization, the control signal that temperature compensation means 300 cuts out can be sent immediately.Or control device can send the control signal making the control signal of refrigeration system 400 startup optimization He make temperature compensation means 300 cut out simultaneously.
In some embodiments of the invention, temperature compensation means 300 can comprise in electrical heating wire, illuminating lamp and PTC heat generating member any one or multiple.Namely temperature compensation means 300 can be independent electrical heating wire or illuminating lamp or PTC heat generating member, any two kinds of combinations in electrical heating wire, illuminating lamp and PTC heat generating member can also be comprised or three kinds have.Such as, temperature compensation means 300 can comprise electrical heating wire and PTC heat generating member, and electrical heating wire is arranged at above refrigeration evaporator, and PTC heat generating member is arranged on the refrigerating chamber diapire below refrigeration evaporator.
The embodiment of the present invention also provides a kind of control method of refrigerator, is applicable to control any one refrigerator 10 in above embodiment.
Fig. 2 is the indicative flowchart of the control method of refrigerator according to an embodiment of the invention.In embodiments of the present invention, the control method of refrigerator 10 comprises:
Under refrigeration system 400 is in halted state, obtain the temperature change value of refrigerating chamber 100 within a thermometric cycle;
When the temperature rising in refrigerating chamber 100 makes this temperature change value more than a variations in temperature threshold value, open the temperature compensation means 300 in refrigerating chamber 200, make it provide heat to refrigerating chamber 200, raise to make the temperature in refrigerating chamber 200; With
When the temperature in refrigerating chamber 200 is increased to the first refrigeration system start-up temperature threshold value, starts refrigeration system 400, make it provide cold to refrigerating chamber 200 and refrigerating chamber 100.
That is, see Fig. 2, the control method of refrigerator 10 comprises:
Step S510, judges whether refrigeration system 400 is in halted state;
Step S520, if so, then obtains the temperature change value of refrigerating chamber 100 within a thermometric cycle;
Step S530, judges that whether temperature change value in refrigerating chamber 100 is more than a variations in temperature threshold value;
Step S540, if so, then opens the temperature compensation means 300 in refrigerating chamber 200, makes it provide heat to refrigerating chamber 200, raises to make the temperature in refrigerating chamber 200;
Step S550, judges whether the temperature in refrigerating chamber 200 reaches the first refrigeration system start-up temperature threshold value;
Step S560, if so, then starts refrigeration system 400, makes it provide cold to refrigerating chamber 200 and refrigerating chamber 100.
It will be appreciated by persons skilled in the art that in refrigerating chamber 100 that when inserting warm article (temperature is lower than the article of temperature in refrigerating chamber 100), the temperature in refrigerating chamber 100 can sharply raise at short notice.The control method of the embodiment of the present invention is by judging whether the temperature change value of refrigerating chamber 100 within a thermometric cycle carrys out opening or closing of control temperature compensation arrangement 300 more than a variations in temperature threshold value, temperature compensation means 300 can be opened in short time after warm article inserted by refrigerating chamber 100, the temperature in refrigerating chamber 200 is made to raise rapidly pre-cooling refrigeration system 400, thus extend the running time of refrigeration system 400, the temperature in refrigerating chamber 100 is declined rapidly.Meanwhile, under the effect of temperature compensation means 300, the temperature in refrigerating chamber 200 can not drop to very low, both ensure that the normal fresh-keeping function of refrigerating chamber 200, has turn improved the refrigerating capacity of refrigerating chamber 100.
Thermometric cycle, variations in temperature threshold value and the first refrigeration system start-up temperature threshold value can be value that is that set in refrigerator 10 system or user oneself setting.The established standards of thermometric cycle and variations in temperature threshold value accurately to react in refrigerating chamber 100 temperature rate-of-rise after inserting warm article as much as possible.Variations in temperature threshold value corresponding to different thermometric periodic quantities may be different.The established standards of the first refrigeration system start-up temperature threshold value is the cold storage effect not affecting refrigerating chamber 200.
Particularly, in some embodiments of the invention, the thermometric cycle can be the preset value of scope between 5 ~ 15 minutes, variations in temperature threshold value can be the preset value of scope between 5 ~ 10 degrees Celsius, and the first refrigeration system start-up temperature threshold value can be the preset value of scope between 7 ~ 10 degrees Celsius.The thermometric cycle can be preferably 10 minutes.
Fig. 3 is the indicative flowchart of the control method of refrigerator in accordance with another embodiment of the present invention.In other embodiments of the present invention, when the temperature in refrigerating chamber 200 is increased to the first refrigeration system start-up temperature threshold value, also comprise after starting refrigeration system 400:
Step S570, closing temperature compensation arrangement 300.
That is, after refrigeration system 400 starts, can closing temperature compensation arrangement 300 at once.Thus, temperature compensation means 300 continuous firing can be avoided to cause the temperature in refrigerating chamber 200 to remain high, thus avoid refrigeration system 400 continuous firing to cause the technical problem that the energy consumption of refrigerator 10 is larger.
In other embodiment of the present invention, also can comprise after starting refrigeration system 400:
Obtain the temperature in refrigerating chamber 100 and/or refrigerating chamber 200; With
When the temperature in refrigerating chamber 100 is reduced to below the first refrigeration system stopping temperature threshold, and/or when the temperature in refrigerating chamber is reduced to below the second refrigeration system stopping temperature threshold, make refrigeration system 400 out of service.
That is, can out of service according to the temperature controlled refrigerating system 400 in refrigerating chamber 100 or refrigerating chamber 200.Can also out of service according to the temperature controlled refrigerating system 400 in refrigerating chamber 100 and refrigerating chamber 200, namely below temperature threshold is stopped when the temperature in refrigerating chamber 100 is reduced to the first refrigeration system, and when the temperature in refrigerating chamber 200 is reduced to below the second refrigeration system stopping temperature threshold, refrigeration system 400 just can be out of service.
Further, the first refrigeration system stops the established standards of temperature threshold to be to make refrigerating chamber obtain good refrigerating effect, and the energy consumption of refrigerator 10 can not be made again too high.Second refrigeration system stops the established standards of temperature threshold to be to make refrigerating chamber obtain good cold storage effect, and the article in refrigerating chamber can be avoided again to be damaged by frost.Particularly, in some embodiments of the invention, the first refrigeration system stops temperature threshold can be the preset value of scope between 2 ~ 5 degrees Celsius, and the second refrigeration system stops temperature threshold can be the preset value of scope between-18 ~-12 degrees Celsius.
In some embodiments more of the present invention, also can comprise after starting refrigeration system 400:
Calculate refrigeration system 400 time of continuous service after this starts, and time of its continuous service more than a continuous working period threshold value after make refrigeration system 400 out of service.
That is, the stopping of refrigeration system 400 can be controlled according to the continuous working period of each startup optimization of refrigeration system 400.The continuous working period of each startup optimization of refrigeration system 400 can be determined according to the refrigerating capacity of refrigeration system 40, and that is, this continuous working period can be determined with the power of compressor in refrigeration system 400.
In some embodiments of the invention, the control method of refrigerator 10 also comprises:
When the temperature change value of refrigerating chamber 100 within the thermometric cycle is less than variations in temperature threshold value, obtain the temperature in refrigerating chamber 100 and refrigerating chamber 200; With
When the temperature in refrigerating chamber 100 higher than temperature during the second refrigeration system start-up temperature threshold value or in refrigerating chamber 200 higher than the first refrigeration system start-up temperature threshold value time, start refrigeration system 400.
It will be understood by those skilled in the art that, when the temperature change value of refrigerating chamber 100 within the thermometric cycle is less than variations in temperature threshold value, roughly can conclude in refrigerating chamber 100 and not have new warm article to insert, or the temperature inserting article is enough low, does not cause the larger fluctuation of temperature in refrigerating chamber 100.Now, refrigerator 10 is by the unlatching of the temperature controlled refrigerating system 400 in refrigerating chamber 100 or refrigerating chamber 200, and namely refrigerator 10 can normally run.
Particularly, the second refrigeration system start-up temperature threshold value can be the preset value of scope between-8 ~-12 degrees Celsius.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present invention is illustrate and described herein detailed, but, without departing from the spirit and scope of the present invention, still can directly determine or derive other modification many or amendment of meeting the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or amendments.
Claims (10)
1. a control method for refrigerator, described refrigerator comprises refrigerating chamber, have the refrigerating chamber of temperature compensation means and for providing the refrigeration system of cold for described refrigerating chamber and described refrigerating chamber, described control method comprises:
Under described refrigeration system is in halted state, obtain the temperature change value of described refrigerating chamber within a thermometric cycle;
When the temperature rising in described refrigerating chamber makes described temperature change value more than a variations in temperature threshold value, open described temperature compensation means, make it provide heat to described refrigerating chamber, raise to make the temperature in described refrigerating chamber; With
When the temperature in described refrigerating chamber is increased to the first refrigeration system start-up temperature threshold value, start described refrigeration system, make it provide cold to described refrigerating chamber and described refrigerating chamber.
2. control method according to claim 1, wherein,
When the temperature in described refrigerating chamber is increased to the first refrigeration system start-up temperature threshold value, also comprise after starting described refrigeration system:
Close described temperature compensation means.
3. control method according to claim 1, wherein,
Also comprise after the described refrigeration system of startup:
Obtain the temperature in described refrigerating chamber and/or described refrigerating chamber; With
When the temperature in described refrigerating chamber is reduced to below the first refrigeration system stopping temperature threshold, and/or when the temperature in described refrigerating chamber is reduced to below the second refrigeration system stopping temperature threshold, make described refrigeration system out of service.
4. control method according to claim 1, wherein,
Also comprise after the described refrigeration system of startup:
Calculate described refrigeration system time of continuous service after this starts, and time of described continuous service more than a continuous working period threshold value after make described refrigeration system out of service.
5. control method according to claim 1, also comprises:
When the temperature change value of described refrigerating chamber within the thermometric cycle is less than described variations in temperature threshold value, obtain the temperature in described refrigerating chamber and described refrigerating chamber; With
When the temperature in described refrigerating chamber higher than temperature during the second refrigeration system start-up temperature threshold value or in described refrigerating chamber higher than described first refrigeration system start-up temperature threshold value time, start described refrigeration system.
6. control method according to claim 1, wherein,
Described temperature compensation means comprise in electrical heating wire, illuminating lamp and PTC heat generating member any one or multiple.
7. control method according to claim 1, wherein,
The described thermometric cycle is the preset value of scope between 5 ~ 15 minutes, and described variations in temperature threshold value is the preset value of scope between 5 ~ 10 degrees Celsius, and described first refrigeration system start-up temperature threshold value is the preset value of scope between 7 ~ 10 degrees Celsius.
8. control method according to claim 3, wherein,
Described first refrigeration system stops temperature threshold to be the preset value of scope between 2 ~ 5 degrees Celsius, and described second refrigeration system stops temperature threshold to be the preset value of scope between-18 ~-12 degrees Celsius.
9. a refrigerator, comprising:
Refrigerating chamber, is provided with cryogenic temperature sensor in it, to detect the temperature in described refrigerating chamber;
Refrigerating chamber, is provided with refrigerated storage temperature sensor in it, to detect the temperature in described refrigerating chamber;
Temperature compensation means, is arranged in described refrigerating chamber, and is configured to controllably open more than during a variations in temperature threshold value in the temperature change value of described refrigerating chamber within a thermometric cycle, to provide heat to described refrigerating chamber, the temperature in it is raised; With
Refrigeration system, is configured to start when the temperature in described refrigerating chamber is increased to the first refrigeration system start-up temperature threshold value, to provide cold to described refrigerating chamber and described refrigerating chamber.
10. refrigerator according to claim 9, wherein,
Described temperature compensation means is also configured to controllably cut out after described refrigeration system starts.
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| CN201510719179.0A CN105222516A (en) | 2015-10-29 | 2015-10-29 | Refrigerator and control method thereof |
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| CN201510719179.0A CN105222516A (en) | 2015-10-29 | 2015-10-29 | Refrigerator and control method thereof |
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| CN105588395A (en) * | 2016-02-25 | 2016-05-18 | 合肥美菱股份有限公司 | Air-cooling refrigerator air flue heating system and control method thereof |
| CN105953496B (en) * | 2016-05-16 | 2018-10-30 | 合肥晶弘电器有限公司 | A kind of temprature control method and single cycle refrigerator of single cycle refrigerator |
| CN110832262A (en) * | 2017-07-05 | 2020-02-21 | Lg电子株式会社 | Refrigerator and control method thereof |
| CN114018427A (en) * | 2021-11-02 | 2022-02-08 | 合肥华凌股份有限公司 | Temperature detection device, storage equipment, refrigerator and storage chamber temperature control method |
| CN114562847A (en) * | 2020-11-27 | 2022-05-31 | 海信容声(广东)冰箱有限公司 | Refrigerator with a door |
| CN114646175A (en) * | 2022-03-23 | 2022-06-21 | 创维电器股份有限公司 | Direct-cooling type single-system double-temperature-control refrigeration method |
| CN115468372A (en) * | 2022-08-31 | 2022-12-13 | 湖北美的电冰箱有限公司 | Refrigerator temperature control method and single-temperature-control air-cooled refrigerator |
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| CN115468372A (en) * | 2022-08-31 | 2022-12-13 | 湖北美的电冰箱有限公司 | Refrigerator temperature control method and single-temperature-control air-cooled refrigerator |
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