CN105486001A - Refrigerator with double air doors and control method for refrigerator with double air doors - Google Patents
Refrigerator with double air doors and control method for refrigerator with double air doors Download PDFInfo
- Publication number
- CN105486001A CN105486001A CN201510974639.4A CN201510974639A CN105486001A CN 105486001 A CN105486001 A CN 105486001A CN 201510974639 A CN201510974639 A CN 201510974639A CN 105486001 A CN105486001 A CN 105486001A
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- Prior art keywords
- air
- air door
- freezing
- shutter
- refrigerating chamber
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/001—Arrangement or mounting of control or safety devices for cryogenic fluid systems
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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
- F25D2600/04—Controlling heat transfer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a refrigerator with double air doors and a control method for the refrigerator with the double air doors. The refrigerator comprises a box body, an air flue assembly mounted in the box body and a control device connected to the air flue assembly, wherein the air flue assembly comprises a thermal insulation cavity, an evaporator and a fan mounted in the thermal insulation cavity, and an air inlet and an air outlet formed in the two ends of the thermal insulation cavity; and a refrigerating air outlet door and a freezing air outlet door which are adjacent to each other and are independent from each other are arranged in the air outlet. Compared with the prior art, the evaporator and the fan are arranged in the thermal insulation cavity, and the refrigerating air outlet door and the freezing air outlet door which can be independently opened or closed are arranged in the air outlet of the thermal insulation cavity for independently supplying cold to a refrigerating chamber and a freezing chamber, so that the purpose of reasonably distributing cooling capacity is realized; and a heating tube is not required to be additionally arranged for defrosting, so that the safety is higher.
Description
Technical field
The present invention relates to refrigerator technical field, particularly relate to a kind of two air door refrigerator and control method thereof.
Background technology
At present, air cooling refrigerator evaporator is made up of evaporation section, defrost heating tube part, a few part of sensor mostly, and fan, air door etc. are then all arranged on casing, and general only at the one-sided installation air door of the air outlet of refrigerating chamber, temperature-changing chamber.When carrying out defrost to evaporimeter; the air inlet of usual meeting closing cold room, temperature-changing chamber; then utilize heating tube to heat and carry out defrost; although air inlet is closed; but still can not effectively stop the heat of heating tube to be propagated to refrigerating chamber by return air inlet; and due to heating tube self-temperature high, be easy to cause the temperature of each room such as refrigerating chamber, refrigerating chamber to raise.In addition, will fire be probably caused to occur if inner container of icebox is encountered in heating tube installation accidentally.In addition, in process of refrigerastion, described refrigerating chamber, refrigerating chamber cannot separately freeze, namely time to refrigeration chamber, refrigerating chamber also can synchronously freeze, the evaporating temperature needed due to freezing, springhouse is not identical, if refrigeration adopts and freezing identical evaporating temperature, is easy to the waste causing compression mechanism cold efficiency.Therefore, if by refrigeration, freezing separately refrigeration, the refrigerating efficiency of refrigerator can certainly will will be improved.
Summary of the invention
The object of the present invention is to provide a kind of two air door refrigerator and control method thereof, it can improve the problem that in prior art, refrigeration, freezing refrigeration influence each other, cannot carry out separately.
One of for achieving the above object, an embodiment of the present invention provides a kind of two air door refrigerator, the control device comprising casing, be installed on the ducting assembly in casing and be connected with described ducting assembly, described ducting assembly comprises heat-insulated cavity, be installed on evaporimeter in described heat-insulated cavity and blower fan and be located at air inlet and the air outlet at described heat-insulated cavity two ends, be provided with in described air outlet be disposed adjacent and independent of each other refrigerate out air door and freezing go out air door.
As the further improvement of an embodiment of the present invention, the compressor being provided with refrigerating chamber, refrigerating chamber in described casing and being connected with described control device, described refrigerating chamber be equipped with the temperature sensor be connected with described control device in refrigerating chamber.
As the further improvement of an embodiment of the present invention, described control device connects described temperature sensor, and the temperature data recorded according to temperature sensor control described refrigerate out air door and freezing go out the unlatching of air door or closedown.
As the further improvement of an embodiment of the present invention, described heat-insulated cavity is provided with pair of sidewalls and the container cavity between sidewall, described evaporimeter is in described container cavity and between described air outlet and air inlet, described air inlet is communicated with described container cavity with described air outlet, is provided with and is disposed adjacent and refrigeration shutter independent of each other and freezing shutter in described air inlet.
As the further improvement of an embodiment of the present invention, described refrigeration shutter and the described mutual correspondence of air door that refrigerates out are arranged, described freezing shutter and described freezing go out air door is mutually corresponding arranges, described refrigeration shutter is connected with described control device with described freezing shutter.
As the further improvement of an embodiment of the present invention, described blower fan is positioned at described container cavity, and between described air outlet and described evaporimeter.
As the further improvement of an embodiment of the present invention, described air inlet establishes forked two air intake passages, and described refrigeration shutter and freezing shutter are installed in described two air intake passages respectively.
As the further improvement of an embodiment of the present invention, described heat-insulated cavity is also provided with the arcwall extended from the inward at both ends of described sidewall, and described air inlet and air outlet are all formed between two arcwalls.
One of for achieving the above object, another embodiment of the present invention provides the control method of a kind of pair of air door refrigerator, comprising:
Monitor the temperature in refrigerating chamber and refrigerating chamber, and control air inlet and the air outlet of blower fan and this heat-insulated cavity defaulted in heat-insulated cavity according to monitoring result;
When the temperature of refrigerating chamber, refrigerating chamber reaches default turn-on temperature value, start compressor cooling and open separately preset in the freezing shutter and air outlet preset in air inlet freezing go out air door, and make compressor keep high-frequency running;
When freezer temperature reaches default shutoff temperature value, close described freezing shutter and freezing go out air door, and open the refrigeration preset in the refrigeration shutter and air outlet preset in air inlet and go out air door, make compressor keep low frequency running;
When temperature of refrigerating chamber reaches default shutoff temperature value, close compressor and described refrigeration shutter and refrigerate out air door.
As the further improvement of an embodiment of the present invention, when compressor keeps high-frequency to operate, control evaporating temperature≤-18 DEG C of the evaporimeter in described heat-insulated cavity, and utilize the running of described blower fan that the cold at evaporimeter place is sent to refrigerating chamber.
Compared with prior art, beneficial effect of the present invention is: by being arranged in heat-insulated cavity by evaporimeter, blower fan, and the air outlet of heat-insulated cavity arrange the refrigeration that can open separately or close go out air door and freezing go out air door, can respectively to refrigerating chamber and the independent cooling of refrigerating chamber, achieve the object of cold reasonable distribution, and defrost without the need to arranging heating tube, security is higher.
Accompanying drawing explanation
Fig. 1 is the ducting assembly front view of two air door refrigerators of an embodiment of the present invention;
Fig. 2 is the ducting assembly side view of two air door refrigerators of an embodiment of the present invention;
Fig. 3 is the control principle drawing of two air door refrigerators of an embodiment of the present invention;
Fig. 4 is the structural representation of two air door refrigerators of an embodiment of the present invention.
Detailed description of the invention
Describe the present invention below with reference to detailed description of the invention shown in the drawings.But these embodiments do not limit the present invention, the structure that those of ordinary skill in the art makes according to these embodiments, method or conversion functionally are all included in protection scope of the present invention.
In each diagram of the application, for the ease of diagram, some size of structure or part can be exaggerated, therefore, only for illustrating the basic structure of the theme of the application relative to other structure or part.
In addition, used herein such as " on ", " top ", D score, the representation space relative position such as " below " term be describe a unit as shown in the drawings or the feature relation relative to another unit or feature for the object being convenient to illustrate.The term of relative space position can be intended to comprise equipment in the different azimuth used or in work except orientation shown in figure.Such as, if by the equipment upset in figure, be then described to be positioned at other unit or feature " below " or " under " unit will be positioned at other unit or feature " top ".Therefore, exemplary term " below " can include above and below these two kinds of orientation.Equipment can otherwise be directed (90-degree rotation or other towards), and correspondingly herein interpreted use with the description language of space correlation.
As shown in Figures 1 to 4, the invention provides a kind of two air door refrigerator, it control device comprising casing 10, be installed on the ducting assembly 20 in casing 10 and control described ducting assembly 20.
Described ducting assembly 20 comprises heat-insulated cavity 21, be installed on evaporimeter 22 in described heat-insulated cavity 21 and blower fan 23 and be located at air inlet 24 and the air outlet 25 at described heat-insulated cavity 21 two ends.
Described heat-insulated cavity 21 is made up of heat preserving and insulating material, it is provided with the sidewall 210 be parallel to each other for a pair and the arcwall 211 extended from the inward at both ends of sidewall 210, described sidewall 210 and arcwall 211 form the container cavity 212 holding described evaporimeter 22 and blower fan 23 jointly, and the air inlet 24 at described heat-insulated cavity 21 two ends is communicated with described container cavity 212 respectively with air outlet 25, as shown in Figure 1, be provided with in described air inlet 24 and be disposed adjacent and refrigeration shutter 241 independent of each other and freezing shutter 242, and described refrigeration shutter 241 can independently be opened with described freezing shutter 242 or close, in present pre-ferred embodiments, described air inlet 24 establishes forked two air intake passage A, B, described refrigeration shutter 241 and freezing shutter 242 are installed on described two air intake passage A respectively, in B.Be provided with in described air outlet 25 be disposed adjacent and independent of each other refrigerate out air door 251 and freezing go out air door 252, describedly refrigerate out that air door 251 and described refrigeration shutter 241 in the vertical direction are mutually corresponding to be arranged, described freezing go out air door 252 and described freezing shutter 242 in the vertical direction is mutually corresponding arranges.
Described evaporimeter 22 is positioned at the central authorities of described container cavity 212, and between described air inlet 24 and air outlet 25, and the both sides of evaporimeter 22 are by described sidewall 210 enclosing, described evaporimeter 22 is positioned at the top of described air inlet 24 and is positioned at the below of described air outlet 25.Described blower fan 23 is between described air outlet 25 and evaporimeter 22, and the both sides of blower fan 23 are provided with described arcwall 211.During operation, under the drive of blower fan 23, air-flow in described heat-insulated cavity 21 will flow to air outlet 25 from air inlet 24, and from the refrigeration of air outlet 25 go out air door 251 and freezing go out air door 252 flow out, described refrigerate out air door 251 and freezing go out air door 252 be respectively used to the cold that controls to lead to refrigerating chamber R1 and refrigerating chamber R2.
As shown in Figure 3, described control device connect and control the compressor R3 of described refrigerator, described blower fan 23, described refrigeration shutter 241, described freezing shutter 242, described refrigerate out air door 251 and described freezing go out air door 252, and described control device is connected with the temperature sensor in refrigerating chamber R1 and refrigerating chamber R2 respectively, can temperature data in Real-time Obtaining refrigerating chamber R1 and refrigerating chamber R2, and startup and the closedown of compressor R3 is controlled according to this temperature data.
In addition, the present invention also provides the control method of a kind of pair of air door refrigerator, comprising:
Temperature in monitoring refrigerating chamber R2 and refrigerating chamber R1, and air inlet 24 and the air outlet 25 of blower fan and this heat-insulated cavity defaulted in heat-insulated cavity is controlled according to monitoring result, wherein, by monitors temperature, controlled the opening and closing of blower fan 23, air inlet 24 and air outlet 25 by control device;
When the temperature of refrigerating chamber R2, refrigerating chamber R1 reaches default turn-on temperature value, by control device control described compressor R3 start with refrigeration, and in the freezing shutter 242 opened separately in described air inlet and described air outlet 25 freezing go out air door 252, now, compressor R3 keeps upper frequency running (making evaporating temperature≤-18 DEG C), by the running of described blower fan 23, the cold at evaporimeter 22 place is delivered to refrigerating chamber R2;
When refrigerating chamber R2 temperature reaches default shutoff temperature value, by control device close described freezing shutter 242 and freezing go out air door 252, and open the refrigeration shutter 241 in described air inlet 24 and the refrigeration in described air outlet 25 goes out air door 251 simultaneously, now, compressor R3 keeps lower frequency running, make evaporating temperature close to refrigeration design temperature, increase during the more freezing refrigeration of the refrigerating efficiency of described compressor R3.
When the temperature of refrigerating chamber R1 reaches default shutoff temperature value, close described compressor R3 and described refrigeration shutter 241 by control device and refrigerate out air door 251, completing a kind of refrigeration cycle thus.
Therefrom visible, the process of refrigerastion of refrigerating chamber R2 of the present invention and refrigerating chamber R1 can independently separately carry out, during refrigeration, only need open separately described refrigeration shutter 241 and refrigerate out air door 251, and only need during freezing refrigeration to open separately described freezing shutter 242 and freezing go out air door 252, two processes do not interfere with each other each other, independently control by control device, achieve and distribute reasonable, the science of cold.
Simultaneously, because described evaporimeter 22 and blower fan 23 are all located in described heat-insulated cavity 21, soundproof effect promotes to some extent, and open refrigeration shutter 241 and refrigerate out air door 251 carry out separately refrigeration time, cold is delivered to via refrigerating out air door 251 in refrigerating chamber R1 to replace out the air-flow that in refrigerating chamber R1, temperature is higher, now just and compressor R3 low frequency is run time evaporimeter 22 carry out cold and hot exchange, realize the defrost carried out evaporimeter 22, this kind of defrost mode all can be carried out in the process of each refrigeration, frost layer thick and heavy on traditional air cooling refrigerator evaporator 22 can not be formed, improve heat exchanger effectiveness, and without the need to installing heating tube additional, thus high-temperature gas can not be produced in defrost process, also the temperature of each chamber of refrigerator can not be caused to raise, the security performance of refrigerator is also better.In addition, because refrigeration and defrost are carried out simultaneously, in white melting process, humidity is comparatively large, can also increase air humidity.
In sum, the present invention is by being placed in evaporimeter 22, blower fan 23 heat-insulated cavity 21 made by insulation material, and two air doors are installed respectively additional in the upper and lower air outlet 25 of cavity and air inlet 24, for distributing cold, refrigerating chamber R1, refrigerating chamber R2 air intake and return air are all by airdoor control, and evaporimeter 22 place is without the need to arranging heating defrosting device, reach in the process of cryogenic temperature closedown at refrigerating chamber R1, cold air and pressure in case can be kept, improve refrigerating efficiency, be beneficial to energy-conservation.
Be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present invention; they are also not used to limit the scope of the invention, all do not depart from the skill of the present invention equivalent implementations done of spirit or change all should be included within protection scope of the present invention.
Claims (10)
1. a two air door refrigerator, the control device comprising casing, be installed on the ducting assembly in casing and be connected with described ducting assembly, it is characterized in that, described ducting assembly comprises heat-insulated cavity, be installed on evaporimeter in described heat-insulated cavity and blower fan and be located at air inlet and the air outlet at described heat-insulated cavity two ends, be provided with in described air outlet be disposed adjacent and independent of each other refrigerate out air door and freezing go out air door.
2. according to claim 1 pair of air door refrigerator, it is characterized in that, the compressor being provided with refrigerating chamber, refrigerating chamber in described casing and being connected with described control device, described refrigerating chamber be equipped with the temperature sensor be connected with described control device in refrigerating chamber.
3. according to claim 2 pair of air door refrigerator, is characterized in that, described control device connects described temperature sensor, and the temperature data recorded according to temperature sensor control described refrigerate out air door and freezing go out the unlatching of air door or closedown.
4. according to claim 1 pair of air door refrigerator, it is characterized in that, described heat-insulated cavity is provided with pair of sidewalls and the container cavity between sidewall, described evaporimeter is in described container cavity and between described air outlet and air inlet, described air inlet is communicated with described container cavity with described air outlet, is provided with and is disposed adjacent and refrigeration shutter independent of each other and freezing shutter in described air inlet.
5. according to claim 4 pair of air door refrigerator, it is characterized in that, described refrigeration shutter and describedly refrigerate out that air door is mutually corresponding to be arranged, described freezing shutter and described freezing go out air door is mutually corresponding arranges, described refrigeration shutter is connected with described control device with described freezing shutter.
6. according to claim 5 pair of air door refrigerator, is characterized in that, described blower fan is positioned at described container cavity, and between described air outlet and described evaporimeter.
7. according to claim 6 pair of air door refrigerator, is characterized in that, described air inlet establishes forked two air intake passages, and described refrigeration shutter and freezing shutter are installed in described two air intake passages respectively.
8. the two air door refrigerators according to any one in claim 4 to 7, it is characterized in that, described heat-insulated cavity is also provided with the arcwall extended from the inward at both ends of described sidewall, and described air inlet and air outlet are all formed between two arcwalls.
9. a control method for two air door refrigerator, comprising:
Monitor the temperature in refrigerating chamber and refrigerating chamber, and control air inlet and the air outlet of blower fan and this heat-insulated cavity defaulted in heat-insulated cavity according to monitoring result;
When the temperature of refrigerating chamber, refrigerating chamber reaches default turn-on temperature value, start compressor cooling and open separately preset in the freezing shutter and air outlet preset in air inlet freezing go out air door, and make compressor keep high-frequency running;
When freezer temperature reaches default shutoff temperature value, close described freezing shutter and freezing go out air door, and open the refrigeration preset in the refrigeration shutter and air outlet preset in air inlet and go out air door, make compressor keep low frequency running;
When temperature of refrigerating chamber reaches default shutoff temperature value, close compressor and described refrigeration shutter and refrigerate out air door.
10. control method according to claim 9, is characterized in that, when compressor keeps high-frequency to operate, controls evaporating temperature≤-18 DEG C of the evaporimeter in described heat-insulated cavity, and utilizes the running of described blower fan that the cold at evaporimeter place is sent to refrigerating chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974639.4A CN105486001B (en) | 2015-12-22 | 2015-12-22 | Double air door refrigerators and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974639.4A CN105486001B (en) | 2015-12-22 | 2015-12-22 | Double air door refrigerators and its control method |
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| Publication Number | Publication Date |
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| CN105486001A true CN105486001A (en) | 2016-04-13 |
| CN105486001B CN105486001B (en) | 2018-05-11 |
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| CN201510974639.4A Active CN105486001B (en) | 2015-12-22 | 2015-12-22 | Double air door refrigerators and its control method |
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Cited By (8)
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| CN106322883A (en) * | 2016-08-19 | 2017-01-11 | 海信容声(广东)冰箱有限公司 | Air-cooled refrigerator and control method thereof |
| CN106642920A (en) * | 2016-12-26 | 2017-05-10 | 青岛海尔股份有限公司 | Air-cooled refrigerator and operation control method thereof |
| CN107504756A (en) * | 2017-09-29 | 2017-12-22 | 合肥华凌股份有限公司 | Reduce defrost time digital control method, control system and refrigerator and readable storage medium storing program for executing |
| CN107763941A (en) * | 2017-10-31 | 2018-03-06 | 青岛海尔股份有限公司 | The control method and control system of refrigerator with one drag two air door |
| CN108626951A (en) * | 2018-05-30 | 2018-10-09 | 合肥美菱股份有限公司 | A kind of air-duct apparatus of double airdoor control wind directions and air quantity |
| WO2019137090A1 (en) * | 2018-01-12 | 2019-07-18 | 青岛海尔股份有限公司 | Air duct assembly for use with refrigerator and refrigerator |
| WO2019137091A1 (en) * | 2018-01-12 | 2019-07-18 | 青岛海尔股份有限公司 | Air duct assembly for refrigerator and refrigerator |
| CN113945045A (en) * | 2021-02-25 | 2022-01-18 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106322883A (en) * | 2016-08-19 | 2017-01-11 | 海信容声(广东)冰箱有限公司 | Air-cooled refrigerator and control method thereof |
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| WO2019137091A1 (en) * | 2018-01-12 | 2019-07-18 | 青岛海尔股份有限公司 | Air duct assembly for refrigerator and refrigerator |
| CN108626951A (en) * | 2018-05-30 | 2018-10-09 | 合肥美菱股份有限公司 | A kind of air-duct apparatus of double airdoor control wind directions and air quantity |
| CN113945045A (en) * | 2021-02-25 | 2022-01-18 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
| CN113945045B (en) * | 2021-02-25 | 2023-04-18 | 海信冰箱有限公司 | Refrigerator with a door |
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| CN105486001B (en) | 2018-05-11 |
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