CN105276895A - Air-cooling refrigerator - Google Patents
Air-cooling refrigerator Download PDFInfo
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- CN105276895A CN105276895A CN201410350041.3A CN201410350041A CN105276895A CN 105276895 A CN105276895 A CN 105276895A CN 201410350041 A CN201410350041 A CN 201410350041A CN 105276895 A CN105276895 A CN 105276895A
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Abstract
The invention discloses an air-cooling refrigerator. The air-cooling refrigerator comprises a refrigerating chamber, a freezing chamber and a cavity where an evaporator is installed. An air inlet of the refrigerating chamber is communicated with an air outlet of the cavity where the evaporator is installed, and an air return port of the refrigerating chamber is communicated with an air inlet of the cavity where the evaporator is installed. An air inlet of the freezing chamber is communicated with the air outlet of the cavity where the evaporator is installed, and an air return port of the freezing chamber is communicated with the air inlet of the cavity where the evaporator is installed. The air inlet of the refrigerating chamber is communicated with the air outlet of the cavity where the evaporator is installed through a first air duct, and the air inlet of the freezing chamber is communicated with the first air duct through a second air duct. The air inlet of the refrigerating chamber is provided with a first fan and a first mechanical door which can be opened or closed automatically under the action of pressure difference, and the first fan is communicated with the air inlet of the refrigerating chamber. The air inlet of the freezing chamber is provided with a second fan and a second mechanical door which can be opened or closed automatically under the action of pressure difference, and the second fan is communicated with the air inlet of the freezing chamber. The second fan and the first fan are arranged in a linked mode.
Description
Technical field
The present invention relates to refrigeration technology field, particularly relate to a kind of wind cooling refrigerator.
Background technology
Along with the raising day by day of people's living standard, refrigerator has become a kind of conventional electrical equipment.Wind cooling refrigerator be a kind of utilize fan forcing vaporiser inside cold air and refrigerator in the refrigerator of indirect refrigeration compared with hot-air convection circulation.
Existing wind cooling refrigerator generally comprises the refrigerating chamber and refrigerating chamber that are provided with air inlet and return air inlet, the air inlet of refrigerating chamber and the air inlet of refrigerating chamber are all connected with the air outlet of the cavity installing evaporimeter, the return air inlet of refrigerating chamber is all connected with the air inlet of this cavity with the return air inlet of refrigerating chamber, the low-temperature cold wind that evaporimeter like this produces can enter refrigerating chamber and refrigerating chamber respectively via being attached thereto logical air channel, freezes to refrigerating chamber and refrigerating chamber.
But due to the effect of blower fan, cold wind can be made to carry a large amount of moisture, when cold wind is via evaporimeter, entrained moisture can be condensed in the surface of evaporimeter and form frost layer.Along with the continuous thickening of frost layer, air circuit resistance can be caused to continue to increase, and the coefficient of heat transfer of air side constantly reduces, and the refrigeration performance of refrigerator entirety will reduce.Therefore, in order to ensure the refrigeration performance of refrigerator, need to carry out defrost process to evaporimeter.Existing refrigeration modes is mainly heated evaporimeter by the start and stop controlling the heaters such as heater strip.
Adopt heater to carry out defrosting to evaporimeter and belong to pressure Defrost mode, simultaneously when heating evaporimeter, need to ensure that air inlet is in closed condition, therefore, in order to control the opening and closing of air inlet, need to arrange the electric-controlled switch such as electrically operated valve in air inlet position.But, motor switch the energy consumption that can increase refrigerator is set.
Therefore, how arranging a kind of refrigerator that can reduce energy consumption is the art technology people technical issues that need to address.
Summary of the invention
The object of this invention is to provide a kind of wind cooling refrigerator, can naturally defrost, reduce energy consumption.
The invention provides a kind of wind cooling refrigerator, comprise refrigerating chamber, refrigerating chamber and the cavity for installing evaporimeter, the air inlet of described refrigerating chamber is connected with the air outlet of the cavity of described evaporimeter, and the return air inlet of described refrigerating chamber is connected with the air inlet of the cavity of described evaporimeter; The air inlet of described refrigerating chamber is connected with the air outlet of the cavity of described evaporimeter, the return air inlet of described refrigerating chamber is connected with the air inlet of the cavity of described evaporimeter, also comprise the first air channel and the second air channel, the air inlet of wherein said refrigerating chamber is connected by described first air channel with the air outlet of the cavity of described evaporimeter; The air inlet of described refrigerating chamber is connected with described first air channel by described second air channel; The air inlet of described refrigerating chamber is provided with the first blower fan and can in the first machine door of automatic shutter under differential pressure action, and described first blower fan is connected with the air inlet of described refrigerating chamber; The air inlet of described refrigerating chamber is provided with the second blower fan and can in the second machine door of automatic shutter under differential pressure action, and described second blower fan is connected with the air inlet of described refrigerating chamber, and described second blower fan and described first blower fan are connected and arrange.
Preferably, described first machine door and the second machine door include framework and are installed on the baffle plate of described framework, described baffle plate can under the effect of pressure reduction automatic shutter; Described baffle plate is arranged at the side of described framework towards described refrigerating chamber or described refrigerating chamber, and the end that described baffle plate is connected with described framework is provided with keeper.
Preferably, described framework is provided with ventilating opening, the ventilating opening being arranged at the framework of described first machine door is connected with the air inlet of described refrigerating chamber, and the ventilating opening being arranged at the framework of described second machine door is connected with the air inlet of described refrigerating chamber, and described baffle plate is arranged at described ventilating opening.
Preferably, the maximum opening angle of described first machine door is 30 °, and the maximum opening angle of described second machine door is 45 °.
Preferably, the end face that described keeper is used for contacting with described baffle plate is curved end.
Preferably, the cavity of described evaporimeter is arranged at described refrigerating chamber and described refrigerating chamber is arranged at the below of described refrigerating chamber, and the thickness of the foaming layer of described refrigerating chamber is at least 70mm.
Preferably, the return air inlet place of described refrigerating chamber is provided with temperature and humidity sensor, and the cavity of described evaporimeter is also provided with assisted heating device, and described assisted heating device and described temperature and humidity sensor are electrically connected.
Preferably, described baffle plate is rigid plastics baffle plate.
A kind of wind cooling refrigerator provided by the present invention, comprise refrigerating chamber, refrigerating chamber and the cavity for installing evaporimeter, the air inlet of refrigerating chamber is connected with the air outlet of the cavity of evaporimeter, and the return air inlet of refrigerating chamber is connected with the air inlet of the cavity of evaporimeter; The air inlet of refrigerating chamber is connected with the air outlet of the cavity of evaporimeter, the return air inlet of refrigerating chamber is connected with the air inlet of the cavity of evaporimeter, also comprise the first air channel and the second air channel, wherein the air inlet of refrigerating chamber is connected by the first air channel with the air outlet of the cavity of evaporimeter; The air inlet of refrigerating chamber is connected with the first air channel by the second air channel; The air inlet of refrigerating chamber is provided with the first blower fan and can in the first machine door of automatic shutter under differential pressure action, and the first blower fan is connected with the air inlet of refrigerating chamber; The air inlet of refrigerating chamber is provided with the second blower fan and can in the second machine door of automatic shutter under differential pressure action, and the second blower fan is connected with the air inlet of refrigerating chamber, and the second blower fan and described first blower fan are connected and arrange.By the second machine door of automatic shutter under being arranged on differential pressure action at the air inlet of refrigerating chamber with arrange the first machine door at the air inlet of refrigerating chamber, can ensure when cooling refrigerating chamber or refrigerating chamber, under the effect of pressure reduction, first machine door and the action respectively of the second machine door, ensure to cool refrigerating chamber or refrigerating chamber separately; Meanwhile, when cooling refrigerating chamber, can realize the natural defrost to evaporimeter, compared with prior art, due to the opening and closing utilizing pressure reduction to ensure machine door, structure is simple, can reduce electric component and arrange, and then can reduce the power consumption of wind cooling refrigerator.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of wind cooling refrigerator provided by the present invention;
Wherein, in Fig. 1:
Air channel 5, first, cavity 3, first air channel 4, second blower fan 6, first machine door 7, second blower fan 8, second machine door 9 of refrigerating chamber 1, refrigerating chamber 2, evaporimeter.
Detailed description of the invention
Core of the present invention is to provide a kind of wind cooling refrigerator, can naturally defrost, and reduces energy consumption.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of wind cooling refrigerator provided by the present invention.
In this embodiment, wind cooling refrigerator comprises refrigerating chamber 1, refrigerating chamber 2 and installs the cavity 3 of evaporimeter, and wherein the air inlet of refrigerating chamber 1 is connected by the air outlet of the first air channel 4 with the cavity 3 of evaporimeter; The air inlet of refrigerating chamber 2 is connected with the first air channel 4 by the second air channel 5.The air inlet of refrigerating chamber 1 is arranged at the first blower fan 6 and the first machine door 7, first blower fan 6 and the first machine door 7 and links and arrange; The air inlet of refrigerating chamber 2 is provided with the second blower fan 8 and the second machine door 9, second blower fan 8 and the second machine door 9 and links and arrange, and the first machine door 7 and the second machine door 9 all can automatic shutters.
Setting like this, when compressor is opened, when second blower fan 8 is opened, low-temperature cold wind can flow through via the air outlet of the cavity 3 of evaporimeter the air inlet that the first air channel 4 and the second air channel 5 arrive refrigerating chamber 2, under the effect of the second blower fan 8, refrigerating chamber 2 air inlet is greater than the pressure of refrigerating chamber 2 inside towards the pressure of the second blower fan 8, second machine door 9 is opened automatically, the air inlet of refrigerating chamber 2 is opened, cold wind enters refrigerating chamber 2 via the air inlet of refrigerating chamber 2, refrigerating chamber 2 is cooled, simultaneously because the second air channel 5 is connected with the first air channel 4, therefore when the second blower fan 8 is opened, gas in first air channel 4 can flow to the second air channel 5 via the first air channel 4 under the effect of the second blower fan 8, therefore the air inlet of refrigerating chamber 1 air inlet that can form local decompression and refrigerating chamber 1 is less than the pressure of refrigerating chamber 1 inside towards the pressure of the side of the first blower fan 6, therefore, under the effect of pressure reduction, first machine door 7 is closed, low-temperature cold wind can be avoided to enter refrigerating chamber 1,
When compressor shutdown, the first blower fan 6 start, second blower fan 8 cuts out, cold wind can enter the first air channel 4 via the air outlet of the cavity 3 of evaporimeter, under the effect of the first blower fan 6, refrigerating chamber 1 air inlet is greater than the pressure of refrigerating chamber 1 inside towards the pressure of the first blower fan 6, and the first machine door 7 is opened automatically, and the air inlet of refrigerating chamber 1 is opened, cold wind enters refrigerating chamber 1 via the air inlet of refrigerating chamber 1, cools refrigerating chamber 1; Because the second air channel 5 is connected with the first air channel 4, therefore when the first blower fan 6 is opened, gas in second air channel 5 can flow to the first air channel 4 via the second air channel 5 under the effect of the first blower fan 6, therefore the air inlet of refrigerating chamber 2 air inlet that can form local decompression and refrigerating chamber 2 is less than the pressure of refrigerating chamber 2 inside towards the pressure of the side of the second blower fan 8, therefore, under the effect of pressure reduction, second machine door 9 is closed, and the high temperature cold wind (being generally 5 DEG C) that make use of refrigerating chamber 1 carries out nature defrosting to evaporimeter (temperature of evaporimeter is generally-30 DEG C).Circulation like this cools, and can ensure evaporator non-frost.
So, by the second machine door 9 of automatic shutter under being arranged on differential pressure action at the air inlet of refrigerating chamber 2 with arrange the first machine door 7 at the air inlet of refrigerating chamber 1, can ensure when cooling refrigerating chamber 2 or refrigerating chamber 1, under the effect of pressure reduction, first machine door 7 and the action respectively of the second machine door 9, ensure to cool refrigerating chamber 1 or refrigerating chamber 2 separately; Meanwhile, when cooling refrigerating chamber 1, can realize the natural defrost to evaporimeter, compared with prior art, due to the opening and closing utilizing pressure reduction to ensure machine door, structure is simple, can reduce electric component and arrange, and then can reduce the power consumption of wind cooling refrigerator.
It should be noted that, in this embodiment, the first blower fan 6 and the interlock of the second blower fan 8 refer to that the second blower fan 8 stops operating when the first blower fan 6 operates; When the second blower fan 8 operates, the first blower fan 6 stops operating.So, can ensure to cool refrigerating chamber 1 and refrigerating chamber 2 separately.
Also it should be noted that, in this embodiment, rename just for the ease of being described to machine door and blower fan, the blower fan being arranged at the air inlet of refrigerating chamber 1 is the first blower fan 6, its machine door is the first machine door 7, the blower fan that the air inlet being arranged at refrigerating chamber 2 goes out is the second blower fan 8, and its machine door is the second machine door 9.
In addition, the first machine door 7 and the second machine door 9 include framework and are installed on the baffle plate of framework, baffle plate can under the effect of pressure reduction automatic shutter, the end that baffle plate is connected with framework is provided with keeper.The baffle plate of the first machine door 7 is arranged at the side of framework towards refrigerating chamber 1 of the first machine door 7, and the baffle plate of the second machine door 9 is arranged at the side of framework towards refrigerating chamber 2 of the second machine door 9.Setting like this, for the first machine door 7: when the first blower fan 6 starts, effect due to pressure reduction can make this baffle plate be opening towards the direction of refrigerating chamber 1, the space that baffle plate needs in opening process is larger, therefore baffle plate is arranged at the smooth opening and closing that can ensure baffle plate towards the side of refrigerating chamber 1, is convenient to the installation of baffle plate.Meanwhile, keeper is set, the opening angle of baffle plate can be ensured, make the opening angle of baffle plate meet the demand of air intake, be convenient to the diffusion of cold wind at refrigerating chamber 1 or refrigerating chamber 2.
It should be noted that, in order to ensure that baffle plate can realize automatic open-close under the effect of pressure reduction, in this embodiment, baffle plate is hard plastic board, for the first machine door 7, when the first blower fan 6 starts, under positive differential pressure effect, hard plastic board can be opened by the air inlet blowing afloat i.e. refrigerating chamber 1; When the first blower fan 6 stops, the second blower fan 8 starts, and now under the effect of Negative Pressure Difference and rigid plastics self inertia, the air inlet that hard plastic board is in closure state and refrigerating chamber 1 is closed, and ensures the isolated operation of refrigerating chamber 2 refrigeration system.
Also it should be noted that, in this embodiment, baffle plate is hard plastic board, is certainly meeting under cryoprotective condition, does not also get rid of the baffle plate adopting other materials.
Moreover, in this embodiment, the framework of the first machine door 7 is provided with the ventilating opening be connected with the air inlet of refrigerating chamber 1, the framework of the second machine door 9 is provided with the ventilating opening be connected with the air inlet of refrigerating chamber 2, baffle plate is arranged at ventilating opening, for the first machine door 7, when baffle plate is in opening, ventilating opening is in open mode, and cold wind can spread to refrigerating chamber 1 via ventilating opening; When baffle plate is in closure state, can ensure that ventilating opening is in closed condition, the cold wind flowing to refrigerating chamber 2 so can be avoided to impact refrigerating chamber 1.
It should be noted that, in this embodiment, framework is provided with four ventilating openings, and four ventilating openings are uniformly distributed along framework, and four ventilating openings are matrix form distribution.So can ensure that cold wind evenly enters refrigerating chamber 1 or refrigerating chamber 2, avoid local wind rate excessive, and cause the inhomogeneities of refrigeration.Certainly, do not get rid of the ventilating opening that other quantity are set according to framework, as two, four etc. yet.
Further in scheme, according to the air intake requirement of refrigerating chamber 1 and refrigerating chamber 2, the maximum opening angle of the first machine door 7 is 30 °, and the maximum opening angle of the second machine door 9 is 45 °.The opening angle of the first machine door 7 and the second machine door 9 all refers to the angle between baffle plate and ventilating opening place plane.So, by controlling the opening angle of machine door, can avoid because opening angle is too small and be not easy to the diffusion of cold wind.
In addition, in order to ensure that the opening angle of machine door meets air intake requirement, in this embodiment, the end face that keeper contacts with baffle plate is curved end, so can contact area between enlarged baffle and keeper, ensure that the opening angle of baffle plate reaches its maximum opening angle.
The main structure to machine door and set-up mode are introduced hereinbefore, are introduced hereinafter by arranging structure to other of refrigerating chamber 1 and refrigerating chamber 2,
In this embodiment, the cavity 3 of evaporimeter is installed and is arranged at refrigerating chamber 1 and refrigerating chamber 1 is arranged at the below of refrigerating chamber 2, in order to avoid when the compressor is operated, cold diffusion is there is in the low-temperature cold wind that evaporimeter is formed in transmitting procedure, the thickness of the foaming layer of refrigerating chamber 1 is at least 70mm, the cold wind in the return air duct of the first air channel 4 and refrigerating chamber 2 so can be avoided to spread to other positions, avoid refrigerating loss.
Also be provided with the assisted heating devices such as electrical heating, the return air inlet of refrigerating chamber 1 is provided with temperature and humidity sensor, can monitor the temperature of refrigerating chamber 1 return air, humidity with this, when the load of refrigerating chamber 2 is larger, according to the temperature of refrigerating chamber 1 return air, the start and stop of humidity rate of change control assisted heating device, evaporimeter can be avoided to have the generation of residual white phenomenon, and then the effect of defrost can be ensured.Meanwhile, by the start and stop utilizing the rate of change of temperature, humidity to control assisted heating device, the start-stop time of assisted heating device can be reduced, and then reach energy-conservation object.
Carry out a kind of wind cooling refrigerator introduced in detail provided by the present invention above.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (8)
1. a wind cooling refrigerator, comprise refrigerating chamber (1), refrigerating chamber (2) and the cavity (3) for installing evaporimeter, the air inlet of described refrigerating chamber (1) is connected with the air outlet of the cavity (3) of described evaporimeter, and the return air inlet of described refrigerating chamber (1) is connected with the air inlet of the cavity (3) of described evaporimeter; The air inlet of described refrigerating chamber (2) is connected with the air outlet of the cavity (3) of described evaporimeter, the return air inlet of described refrigerating chamber (2) is connected with the air inlet of the cavity (3) of described evaporimeter, it is characterized in that, also comprise the first air channel 4 and the second air channel (5), the air inlet of wherein said refrigerating chamber (1) is connected by described first air channel 4 with the air outlet of the cavity (3) of described evaporimeter; The air inlet of described refrigerating chamber (2) is connected with described first air channel 4 by described second air channel (5); The air inlet of described refrigerating chamber (1) is provided with the first blower fan (6) and can in first machine door (7) of automatic shutter under differential pressure action, and described first blower fan (6) is connected with the air inlet of described refrigerating chamber (1); The air inlet of described refrigerating chamber (2) is provided with the second blower fan (8) and can in second machine door (9) of automatic shutter under differential pressure action, described second blower fan (8) is connected with the air inlet of described refrigerating chamber (2), and described second blower fan (8) and described first blower fan (6) are connected and arrange.
2. wind cooling refrigerator according to claim 1, it is characterized in that, described first machine door (7) and the second machine door (9) include framework and are installed on the baffle plate of described framework, described baffle plate can under the effect of pressure reduction automatic shutter; Described baffle plate is arranged at the side of described framework towards described refrigerating chamber (1) or described refrigerating chamber (2), and the end that described baffle plate is connected with described framework is provided with keeper.
3. wind cooling refrigerator according to claim 4, it is characterized in that, described framework is provided with ventilating opening, the ventilating opening being arranged at the framework of described first machine door (7) is connected with the air inlet of described refrigerating chamber (1), the ventilating opening being arranged at the framework of described second machine door (9) is connected with the air inlet of described refrigerating chamber (2), and described baffle plate is arranged at described ventilating opening.
4. wind cooling refrigerator according to claim 1, is characterized in that, the maximum opening angle of described first machine door (7) is 30 °, and the maximum opening angle of described second machine door (9) is 45 °.
5. wind cooling refrigerator according to claim 2, is characterized in that, the end face that described keeper is used for contacting with described baffle plate is curved end.
6. the wind cooling refrigerator according to claim 1 to 5 arbitrary, it is characterized in that, the cavity (3) of described evaporimeter is arranged at described refrigerating chamber (1) and described refrigerating chamber (1) is arranged at the below of described refrigerating chamber (2), and the thickness of the foaming layer of described refrigerating chamber (1) is at least 70mm.
7. wind cooling refrigerator according to claim 6, it is characterized in that, the return air inlet place of described refrigerating chamber (1) is provided with temperature and humidity sensor, the cavity (3) of described evaporimeter is also provided with assisted heating device, and described assisted heating device and described temperature and humidity sensor are electrically connected.
8. wind cooling refrigerator according to claim 7, is characterized in that, described baffle plate is rigid plastics baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350041.3A CN105276895B (en) | 2014-07-22 | 2014-07-22 | A kind of wind cooling refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350041.3A CN105276895B (en) | 2014-07-22 | 2014-07-22 | A kind of wind cooling refrigerator |
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| Publication Number | Publication Date |
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| CN105276895A true CN105276895A (en) | 2016-01-27 |
| CN105276895B CN105276895B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410350041.3A Active CN105276895B (en) | 2014-07-22 | 2014-07-22 | A kind of wind cooling refrigerator |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642971A (en) * | 2016-12-08 | 2017-05-10 | 青岛海尔股份有限公司 | Refrigerator and defrosting control method for refrigerator |
| WO2017166443A1 (en) * | 2016-03-31 | 2017-10-05 | 青岛海尔特种电冰箱有限公司 | Refrigerating and freezing device |
| WO2017166575A1 (en) * | 2016-03-31 | 2017-10-05 | 合肥海尔电冰箱有限公司 | Refrigerating and freezing device |
| CN109631459A (en) * | 2018-12-05 | 2019-04-16 | 尹杰 | Household refrigerator capable of preventing cold air from leaking |
| CN109696005A (en) * | 2018-02-24 | 2019-04-30 | 青岛海尔股份有限公司 | Refrigerator and its conduit assembly |
| CN109696004A (en) * | 2018-02-24 | 2019-04-30 | 青岛海尔股份有限公司 | Refrigerator and its conduit assembly |
| CN112696860A (en) * | 2020-12-18 | 2021-04-23 | 合肥朗驰工业设计有限公司 | Refrigerator freezing return air duct and defrosting control method thereof |
| CN113375410A (en) * | 2020-02-25 | 2021-09-10 | 合肥华凌股份有限公司 | Return air temperature control mechanism, return air temperature control method, operation control device and refrigerator |
| CN113375414A (en) * | 2020-02-25 | 2021-09-10 | 合肥华凌股份有限公司 | Return air temperature control mechanism, return air temperature control method, operation control device and refrigerator |
| WO2022252772A1 (en) * | 2021-05-31 | 2022-12-08 | 重庆海尔制冷电器有限公司 | Air duct assembly, refrigerator and control method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017166443A1 (en) * | 2016-03-31 | 2017-10-05 | 青岛海尔特种电冰箱有限公司 | Refrigerating and freezing device |
| WO2017166575A1 (en) * | 2016-03-31 | 2017-10-05 | 合肥海尔电冰箱有限公司 | Refrigerating and freezing device |
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| CN109696005A (en) * | 2018-02-24 | 2019-04-30 | 青岛海尔股份有限公司 | Refrigerator and its conduit assembly |
| CN109631459B (en) * | 2018-12-05 | 2020-11-10 | 苏师大半导体材料与设备研究院(邳州)有限公司 | Household refrigerator capable of preventing cold air from leaking |
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| CN113375410A (en) * | 2020-02-25 | 2021-09-10 | 合肥华凌股份有限公司 | Return air temperature control mechanism, return air temperature control method, operation control device and refrigerator |
| CN113375414A (en) * | 2020-02-25 | 2021-09-10 | 合肥华凌股份有限公司 | Return air temperature control mechanism, return air temperature control method, operation control device and refrigerator |
| CN113375414B (en) * | 2020-02-25 | 2022-09-27 | 合肥华凌股份有限公司 | Return air temperature control mechanism, return air temperature control method, operation control device and refrigerator |
| CN113375410B (en) * | 2020-02-25 | 2022-09-30 | 合肥华凌股份有限公司 | Return air temperature control mechanism, return air temperature control method, operation control device and refrigerator |
| CN112696860A (en) * | 2020-12-18 | 2021-04-23 | 合肥朗驰工业设计有限公司 | Refrigerator freezing return air duct and defrosting control method thereof |
| WO2022252772A1 (en) * | 2021-05-31 | 2022-12-08 | 重庆海尔制冷电器有限公司 | Air duct assembly, refrigerator and control method therefor |
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