CN108344230A - Anti-condensation refrigerator and its operation method - Google Patents
Anti-condensation refrigerator and its operation method Download PDFInfo
- Publication number
- CN108344230A CN108344230A CN201711408642.5A CN201711408642A CN108344230A CN 108344230 A CN108344230 A CN 108344230A CN 201711408642 A CN201711408642 A CN 201711408642A CN 108344230 A CN108344230 A CN 108344230A
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- Prior art keywords
- air
- freezing
- air duct
- cold
- door
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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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
-
- 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
- F25D21/04—Preventing the formation of frost or condensate
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a kind of anti-condensation refrigerator and its operation methods,Involved refrigerator includes refrigerating chamber,Freezing chamber,The refrigeration air duct of cold air is provided to the refrigerating chamber,The freezing air duct of cold air is provided to the freezing chamber,The connecting pipe in the refrigeration air duct is flowed to by the freezing air duct or freezing chamber for cold air,First return airway in the freezing air duct is back to by the refrigerating chamber for cold air and is set to the wind turbine for driving cold air flow in the freezing air duct,The refrigerator also has the first air door for opening and closing the connecting pipe and opens and closes the second air door of first return airway,When refrigerating chamber is in keeping warm mode,First air door is closed with the second air door,To make refrigerating chamber form the space of an autonomous closure,Even if wind turbine continues to run at this time,It also can not cause negative pressure to cooling compartment,It can effectively avoid the problem that hot outside enters cooling compartment and forms condensation inside courage top.
Description
Technical field
The present invention relates to household appliance technical field more particularly to a kind of anti-condensation refrigerators and its operation method.
Background technology
Condensation be high temperature, high humidity gas when encountering cryogenic object in body surface liquefaction be liquid the phenomenon that.Refrigerator
The place for being susceptible to condensation is concentrated mainly at the positions such as courage top, vertical beam, door seal.
The refrigerating chamber of single system wind cooling refrigerator has the air door that control cold air flows into and the reflux to flow back for internal cold air
Air duct；In refrigeration for refrigerator, fan operation drives cold air to be flowed in air duct to realize the internal cooling of refrigerating chamber and freezing chamber.
In the process, if cooling compartment temperature reaches preset temperature, the air door of refrigerating chamber be automatically closed to avoid cold air continue into
Enter；And wind turbine continues to run with and only cools down to freezing chamber.So due to the presence of return airway, the wind turbine of operation can make cold
The certain negative pressure of indoor formation is hidden, due to the effect of negative pressure, the hot-air outside refrigerating chamber can enter inside by door body gap
And condensation is formed at the top of liner.
It is to reinforce the leakproofness of door body and babinet, such as improve door seal effect to be directed to this solution to the problem at present；But
It is that during the refrigerator mfg of mass, such mode can not prevent to cause inner container of icebox top since gap exists completely
The dew condensation phenomenon in portion.
In view of this, it is necessary to provide a kind of reliable anti-condensation refrigerators to solve the above problems.
Invention content
The present invention is directed at least solve one of technical problem of the existing technology, for achieving the above object, this hair
Bright to provide a kind of anti-condensation refrigerator, specific design method is as follows.
A kind of anti-condensation refrigerator, including refrigerating chamber, freezing chamber, provide to the refrigerating chamber refrigeration air duct of cold air, to institute
State the connection that freezing chamber provides the freezing air duct of cold air, flows to the refrigeration air duct by the freezing air duct or freezing chamber for cold air
Pipeline is back to first return airway in the freezing air duct by the refrigerating chamber for cold air and is set to the freezing air duct
Inside drive the wind turbine of cold air flow；The refrigerator also has the first air door for opening and closing the connecting pipe and keying described first
Second air door of return airway, the refrigerating chamber has refrigerating state and keeping warm mode, and is configured to：The refrigerating chamber is in system
When cold state, first air door is opened with second air door, and the freezing air duct or the indoor cold air of freezing are via institute
State connecting pipe and flow to the refrigeration air duct, and the indoor cold air of refrigeration be back to via first return airway it is described
Freeze air duct；When the refrigerating chamber is in keeping warm mode, first air door is closed with second air door to terminate cold air
It is circulated by the connecting pipe and first return airway.
Further, it is described freezing air duct by every be set as two connections first freezing air duct and second freezing air duct and cold air by
First freezing air duct flows to second freezing air duct, and first return airway is connected to the refrigerating chamber and described first
Air duct is freezed, the connecting pipe is connected to the refrigeration air duct and freezes air duct, second freezing air duct connection with described second
To the freezing chamber to provide cold air to the freezing chamber.
Further, the first freezing air duct is connected to second freezing air duct by communication port, and the wind turbine is in institute
State at communication port position or at the communication port position setting to drive cold air to flow to described the by first freezing chamber
Two freezing chambers.
Further, the evaporator for its inside cold air cooling is provided in first freezing air duct.
Further, the refrigerator also has be back to first freezing air duct by the freezing chamber for cold air second time
Wind air duct.
Further, first air door and second air door are electric flap.
Further, first air door is respectively arranged on the connecting pipe and the first return air wind with second air door
The cold air inlet end in road.
The present invention also provides the operation methods of more than one involved anti-condensation refrigerators comprising following steps：
The refrigerating chamber enters refrigerating state, first air door and second door opening, the refrigeration air duct to
Whether the refrigerating chamber provides cold wind, persistently detect and judge the temperature of the cooling compartment higher than refrigeration set by user temperature
Degree,
If so, first air door is kept it turned on second air door, in the freezing air duct or freezing chamber
Cold air the refrigeration air duct is flowed to cool down to the cooling compartment, in the refrigerating chamber by the connecting pipe
Cold air the freezing air duct is flow back by first return airway；
If it is not, then first air door is closed with second air door, it is cold to terminate that the refrigerating chamber enters keeping warm mode
Gas is circulated by the connecting pipe and first return airway.
The beneficial effects of the invention are as follows：Refrigerator based on the present invention has the first air door for opening and closing connecting pipe and keying
Second air door of the first return airway, when refrigerating chamber is in keeping warm mode, the first air door is closed with the second air door, to make
Also cooling compartment can not be caused to bear even if wind turbine continues to run at this time in the space that refrigerating chamber forms an autonomous closure
Pressure can effectively avoid the problem that hot outside enters cooling compartment and forms condensation inside courage top.
Description of the drawings
Fig. 1 is that refrigerator of the present invention removes the first angle schematic diagram after shell；
Fig. 2 show in Fig. 1 the section general diagram at the positions A-A '；
Fig. 3 show the enlarged diagram in the regions a in Fig. 2；
Fig. 4 show status diagram when the second air door is closed in Fig. 2；
Fig. 5 show in Fig. 1 the section general diagram at the positions B-B '；
Fig. 6 show the enlarged diagram in the regions b in Fig. 5；
Fig. 7 show status diagram when the first air door is closed in Fig. 6；
Fig. 8 is that refrigerator of the present invention removes the second angle schematic diagram after shell
Specific implementation mode
Below with reference to embodiment shown in the drawings, the present invention will be described in detail, please refers to shown in Fig. 1 to Fig. 8,
It is a better embodiment of the invention.
With reference to shown in figure 1, Fig. 8, anti-condensation refrigerator according to the present invention includes refrigerating chamber 11 and freezing chamber 12.In conjunction with figure
Shown in 2- Fig. 7, in specific implementation process, to realize that the normal refrigeration work of refrigerator, refrigerator of the invention also have to refrigeration
Room 11 provides the refrigeration air duct 21 of cold air, the freezing air duct 22 of cold air is provided to freezing chamber 12, is flowed for cold air by freezing air duct 22
First return airway in freezing air duct 22 is back to by refrigerating chamber 11 to the connecting pipe 23 in refrigeration air duct 21 and for cold air
24, to realize refrigeration of the cold air to refrigerating chamber 11 and freezing chamber 12, refrigerator according to the present invention, which also has, is set to freezing wind
The wind turbine 3 of cold air flow is driven in road 2.
Specifically, in refrigerator operational process, wind turbine 3 starts, and drives the cold air flow in freezing air duct 22, in conjunction with Fig. 5,
Shown in Fig. 6, most of cold air flows directly into freezing chamber 12 so as to cooling down inside freezing chamber 12, fraction cold air is through communicating pipe
Road 23 enters refrigeration air duct 21, and flows to refrigerating chamber 11 from the gas outlet 210 in refrigeration air duct 21 to be carried out to 11 inside of refrigerating chamber
Cooling.In conjunction with shown in Fig. 2, Fig. 3, for refrigerating chamber 11, to ensure its internal air pressure balance, internal part cold air into
Enter the first return airway 24 and is back to inside freezing air duct 22.
In the specific implementation process of the present invention, refrigerator also has is back to freezing air duct 22 for cold air by freezing chamber 12
Second return airway 25.For freezing chamber 12, wind turbine 3 is during the work time, flat for the air pressure inside guarantee freezing chamber 12
It weighs, the part cold air inside freezing chamber 12 is also back to via the second return airway 25 inside freezing air duct 22.
In other embodiments of the invention, connecting pipe 23 can also be arranged to be connected to freezing chamber 12 and refrigerate air duct
21 so that cold air is entered by freezing chamber 12 in refrigeration air duct 21, is not shown in specific figure.
During the carrying out practically of refrigerator, due to the set temperature of the set temperature refrigerating chamber 11 relatively of freezing chamber 12
It is low, for example, 5 DEG C of refrigerated storage temperature, -18 DEG C of cryogenic temperature.In this way, in refrigerator operational process, the cooling time of freezing chamber 12 is often
It is longer than the cooling time of refrigerating chamber 11, i.e., after refrigerating chamber 11 reaches target temperature set by user, without being further continued for refrigerating chamber
11 inside provide cold air, and are also needed at this time to continuing to provide cold air inside freezing chamber 12.
It is based on this, the first air door 51 for opening and closing connecting pipe 23 is provided in the present invention, with reference to shown in figure 6, Fig. 7,
In this specific embodiment, the first air door 51 is set at 230 position of the first cold air inlet end of connecting pipe 23；It is of course possible to manage
Solution, in other embodiments of the invention, the first air door 51 may also set up in the inside of connecting pipe 23 or air opening end
At equal positions.When first air door 51 is opened, the cold air freezed in air duct 22 flows to freezing air duct 22 by connecting pipe 23；First
When air door 51 is closed, refrigerates and separate between air duct 21 and freezing air duct 22, the refrigeration air duct 21 to make is no longer to refrigerating chamber 11
Cold air is provided.
In specific implementation process, after the first air door 51 is closed, freezing air duct 22 needs to continue to carrying inside freezing chamber 12
For cold air with to continuing to cool down in freezing chamber 12.If at this point, passing through the first return airway between refrigerating chamber 11 and freezing air duct 22
24 conductings, then can have the following problems：The wind turbine 3 of operation can cause 11 inside of refrigerating chamber to generate certain negative pressure, due to negative pressure
Effect, the hot-air outside refrigerating chamber 11 can be entered inside by door body gap and form condensation at 11 top of refrigerating chamber, and
Due to the entrance of hot-air, the problem of temperature in refrigerating chamber 11 also will appear quick raising.
In consideration of it, the present invention also has following design in specific implementation process：Refrigerator, which also has, opens and closes the first return air wind
Second air door 52 in road 24, in conjunction with shown in Fig. 3, Fig. 4, in this specific embodiment, the second air door 52 is set to the first return airway
24 close to one end of refrigerating chamber 11, i.e., at 240 position of the second cold air inlet as shown in the figure end.With reference to the design side of the first air door 51
The installation position of formula, the second air door 52 may be alternatively located at 24 inside of the first return airway or outlet end (does not make exhibition specifically in figure
Show).
In summary, the refrigerating chamber involved by refrigerator of the present invention has refrigerating state and keeping warm mode.Work as refrigerating chamber
11 be in refrigerating state when, the first air door 51 is opened with the second air door 52, freeze air duct 22 cold air pass through connecting pipe 23
Flow direction refrigeration air duct 21, and the cold air in refrigerating chamber 11 is back to freezing air duct 22 by the first return airway 24；Work as refrigerating chamber
11 be in keeping warm mode when, the first air door 51 and the second air door 52 are closed and pass through connecting pipe 23 and first time to terminate cold air
It circulates in wind air duct 24.
Due in the present invention simultaneously be provided with the first air door 51 and the second air door 52, can guarantee cold compartment of refrigerator 11,
While freezing chamber 12 normally realizes refrigeration, 11 top of effective solution refrigerating chamber leads to the problem of condensation；And it can slow down cold
The rise speed for hiding 11 internal temperature of room, reduces the energy consumption of refrigerator.
In conjunction with shown in Fig. 2 to Fig. 7, the freezing air duct 22 in this specific embodiment is by every the first freezing wind for being set as two connections
Road 221 and second freezes air duct 222.In the process of running, cold air flows to second to the wind turbine 3 of refrigerator by the first freezing air duct 221
Air duct 222 is freezed, the first return airway 24 is connected to refrigerating chamber 11 and first and freezes air duct 221, the connection refrigeration wind of connecting pipe 23
Road 21 and second freeze air duct 222, second freezing air duct 222 be connected to freezing chamber 12 with to freezing chamber 12 provide cold air, second
Return airway 25 is connected to freezing chamber 12 and first and freezes air duct 221.
Based on the set-up mode, the first freezing air duct 221 is the equal of the return air collecting region of refrigerating chamber 11 and freezing chamber 12
Domain, i.e. refrigerating chamber 11 are back to the first freezing air duct 221 with the cold air inside freezing chamber 12, and pass through the first freezing air duct
221 flow to the second freezing air duct 222, then enter back into freezing chamber 12 or enter refrigerating chamber 11 through refrigerating air duct 21.
In this embodiment, in conjunction with shown in Fig. 5, Fig. 6, Fig. 7, the first freezing air duct 221 and second freezes air duct 222
It is connected to by communication port (not indicated in figure), wind turbine 3 is arranged at communication port position to drive cold air to be flowed by the first freezing chamber 221
To the second freezing chamber 222.In the cyclic process of cold air, wind turbine 3 is used to drive the flowing of cold air.In other implementations of the present invention
In example, wind turbine 3 is not limited to be arranged at communication port position, can also be disposed in proximity to communication port or other can drive cold airflow
At dynamic position.
Refrigerator involved in the present invention is additionally provided with the evaporator 4 to cool down for cold air, in this embodiment, evaporator 4
It is set in the first freezing air duct 221.Specifically, when the first air door 51 and the second air door 52 are opened, by refrigerating chamber 11
The cold air being back in the first freezing air duct 221 with freezing chamber 12 blows to refrigerating chamber after the cooling of evaporator 4 again by wind turbine 3
11 and freezing chamber 12 cool down；When the first air door 51 and the second air door 52 are closed, only the cold air inside freezing chamber 12 returns
It flow in the first freezing air duct 221, and freezing chamber 12 is blowed to cool down by wind turbine 3 again after the cooling of evaporator 4.
It is automatically controlled for ease of realizing, the first involved air door 51 and the second air door 52 are electronic wind in the present invention
Door.Specifically, the control of the first air door 51 and the second air door 52 is controlled automatically by the electric signal in refrigerator operational process
System, is mainly controlled by the signal of refrigerating chamber 11 " whether needing to freeze ", in specific control mode can refer to and be hereinafter described
Hold.In addition, electric flap shown in the present embodiment is not limited to rotary opening and closing mode as shown in the figure, can also be it
The design method that it can realize pipeline conducting or be closed, specifically refers to some existing air door design structures, does not make herein
Expansion.
Based on the design structure of the above anti-condensation refrigerator, the present invention also provides the operation methods of the refrigerator comprising with
Lower step：
Refrigerating chamber enters refrigerating state, and the first air door 51 and the second air door 52 are opened, and refrigeration air duct 21 is carried to refrigerating chamber 12
Supply cold wind persistently detects and judges whether the temperature inside refrigerating chamber 11 is higher than refrigerated storage temperature set by user.Specifically implementing
In the process, refrigerating chamber 11 is internally provided with the temperature sensor (not shown) for incuding Current Temperatures.
If the temperature inside refrigerating chamber 11 is higher than refrigerated storage temperature set by user, need that refrigerating chamber 11 is continued to drop at this time
Temperature, then the first air door 51 kept it turned on the second air door 52, the cold air freezed in air duct 22 or freezing chamber 12 passes through connection
The flow direction refrigeration of pipeline 23 air duct 21 is with to cooling down inside refrigerating chamber 12, the cold air in refrigerating chamber 12 passes through the first return airway
24 flow back into freezing air duct 22；
If the temperature inside refrigerating chamber 11 is not higher than refrigerated storage temperature set by user, it is not necessarily at this time further to refrigerating chamber 11
Cooling, then the first air door 51 and the second air door 52 closure, refrigerating chamber 11 pass through connecting pipe into keeping warm mode to terminate cold air
23 and first return airway 24 circulate.During this, freezes the cold air inside air duct 22 and only flow to inside freezing chamber 12；Certainly,
In some cases, for example, after the temperature inside refrigerating chamber 11 and freezing chamber 12 reaches target temperature, wind turbine 3 can stop
Operating avoids unnecessary energy consumption.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiment of understanding.
The series of detailed descriptions listed above only for the present invention feasible embodiment specifically
Bright, they are all without departing from equivalent implementations made by technical spirit of the present invention not to limit the scope of the invention
Or change should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of anti-condensation refrigerator, including refrigerating chamber, freezing chamber, the refrigeration air duct that cold air is provided to the refrigerating chamber, to described
Freezing chamber provides the freezing air duct of cold air, flows to the communicating pipe in the refrigeration air duct by the freezing air duct or freezing chamber for cold air
Road is back to first return airway in the freezing air duct by the refrigerating chamber for cold air and is set in the freezing air duct
Drive the wind turbine of cold air flow；It is characterized in that, the refrigerator also has the first air door for opening and closing the connecting pipe and opens
The second air door of first return airway is closed, the refrigerating chamber has refrigerating state and keeping warm mode, and is configured to：It is described cold
When Tibetan room is in refrigerating state, first air door is opened with second air door, and the freezing air duct or freezing are indoor
Cold air flows to the refrigeration air duct via the connecting pipe, and the indoor cold air of refrigeration is via first return airway
It is back to the freezing air duct；When the refrigerating chamber is in keeping warm mode, first air door is closed with second air door
It is circulated by the connecting pipe and first return airway with terminating cold air.
2. anti-condensation refrigerator according to claim 1, which is characterized in that the freezing air duct is by every being set as the of two connections
One freezing air duct and second freezing air duct and cold air by it is described first freeze air duct flow to it is described second freezing air duct, described first
Return airway is connected to the refrigerating chamber and freezes air duct with described first, and the connecting pipe is connected to the refrigeration air duct and described the
Two freezing air ducts, second freezing air duct are connected to the freezing chamber to provide cold air to the freezing chamber.
3. anti-condensation refrigerator according to claim 2, which is characterized in that the first freezing air duct is freezed with described second
Air duct is connected to by communication port, and the wind turbine is arranged at the communication port position or at the communication port position to drive
Cold air flows to second freezing chamber by first freezing chamber.
4. anti-condensation refrigerator according to claim 3, which is characterized in that first freezing is provided in air duct in it
The evaporator of portion's cold air cooling.
5. according to the anti-condensation refrigerator described in claim 2-4 any one, which is characterized in that the refrigerator also has for cold air
Second return airway in first freezing air duct is back to by the freezing chamber.
6. anti-condensation refrigerator according to claim 1, which is characterized in that first air door is with second air door
Electric flap.
7. anti-condensation refrigerator according to claim 6, which is characterized in that first air door is distinguished with second air door
Set on the cold air inlet end of the connecting pipe and first return airway.
8. a kind of operation method of the anti-condensation refrigerator as described in claim 1-7 any one, which is characterized in that including following step
Suddenly：
The refrigerating chamber enters refrigerating state, first air door and second door opening, and the refrigeration air duct is to described
Refrigerating chamber provides cold wind, persistently detects and judges whether the temperature of the cooling compartment is higher than refrigerated storage temperature set by user,
If so, first air door is kept it turned on second air door, the freezing air duct or freezing are indoor cold
Gas flows to the refrigeration air duct to cool down to the cooling compartment by the connecting pipe, and the refrigeration is indoor cold
Gas flows back into the freezing air duct by first return airway；
If it is not, then first air door is closed with second air door, it is logical to terminate cold air that the refrigerating chamber enters keeping warm mode
Cross the connecting pipe and first return airway circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711408642.5A CN108344230A (en) | 2017-12-23 | 2017-12-23 | Anti-condensation refrigerator and its operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711408642.5A CN108344230A (en) | 2017-12-23 | 2017-12-23 | Anti-condensation refrigerator and its operation method |
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| Publication Number | Publication Date |
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| CN108344230A true CN108344230A (en) | 2018-07-31 |
Family
ID=62963294
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711408642.5A Pending CN108344230A (en) | 2017-12-23 | 2017-12-23 | Anti-condensation refrigerator and its operation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373672A (en) * | 2018-11-06 | 2019-02-22 | 青岛海尔股份有限公司 | Refrigerator |
| CN109373673A (en) * | 2018-11-06 | 2019-02-22 | 青岛海尔股份有限公司 | Refrigerator |
| CN110579059A (en) * | 2019-09-12 | 2019-12-17 | 合肥华凌股份有限公司 | Refrigerator and control method and device thereof |
| CN110579059B (en) * | 2019-09-12 | 2021-06-18 | 合肥华凌股份有限公司 | Refrigerator and control method and device thereof |
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Application publication date: 20180731 |