CN114383359B - Refrigerator with a refrigerator body - Google Patents
Refrigerator with a refrigerator body Download PDFInfo
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- CN114383359B CN114383359B CN202011134227.7A CN202011134227A CN114383359B CN 114383359 B CN114383359 B CN 114383359B CN 202011134227 A CN202011134227 A CN 202011134227A CN 114383359 B CN114383359 B CN 114383359B
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- Prior art keywords
- fresh
- vacuum pump
- keeping
- refrigerator
- time
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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
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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
- F25D17/042—Air treating means within refrigerated spaces
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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
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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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
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/04—Doors; Covers with special compartments, e.g. butter conditioners
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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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers
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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
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/043—Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment
Abstract
The invention discloses a refrigerator, wherein a fresh-keeping device is arranged in the refrigerator, a vacuum pump is used for vacuumizing the fresh-keeping device, a flow detection device is used for detecting the exhaust flow of the vacuum pump, a controller receives the exhaust flow data fed back by the flow detection device, and when the exhaust flow of the vacuum pump is lower than a set value, the controller controls the vacuum pump to stop. The stopping action of the vacuum pump is related to the exhaust flow of the vacuum pump, so that the problem that in the prior art, the pressure sensor is inaccurate in detection due to the internal structure of the pressure sensor is avoided. In the negative pressure maintaining process of the fresh-keeping device, the vacuum pump can keep the fresh at intervals of time T 0 Starting and working for a period of time T, and automatically adjusting the interval time T by the controller according to the vacuumizing time of the adjacent vacuum pumps 0 The service life of the vacuum pump is prolonged, and the negative pressure maintaining effect of the fresh-keeping device is improved.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator with a vacuum fresh-keeping device.
Background
In recent years, health awareness of people is gradually improved, and demands for food preservation are also improved, so that the refrigerator is used as a household appliance for storing food, and the food preservation and storage become technical demands to be solved in the field of refrigerators. At present, different preservation technologies are provided by various manufacturers aiming at the food preservation and storage problems. For example, vacuum preservation techniques, in which conditions for spoilage of food are changed in a vacuum state. Firstly, in a vacuum environment, microorganisms and various enzymes are difficult to survive, and the requirement of microorganism breeding can be met for a long time; in addition, in the vacuum state, the oxygen in the container is greatly reduced, various chemical reactions cannot be completed, the food cannot be oxidized, and the food can be kept fresh for a long time.
The vacuum fresh-keeping system applied to the refrigerator mainly comprises a fresh-keeping drawer accommodated in a refrigerating chamber and a vacuumizing assembly for vacuumizing the fresh-keeping drawer. The vacuum pumping assembly comprises a vacuum pump and a vacuum pumping pipeline, wherein the vacuum pump is communicated with the fresh-keeping drawer through the vacuum pumping pipeline and can be used for vacuumizing the fresh-keeping drawer. After the fresh-keeping drawer is vacuumized, the fresh-keeping drawer is affected by factors such as sealing performance of the fresh-keeping drawer in a subsequent negative pressure maintaining state, and the negative pressure in the fresh-keeping drawer can change along with the time. In order to ensure the negative pressure effect in the fresh-keeping drawer, the fresh-keeping drawer needs to be vacuumized again according to the pressure in the fresh-keeping drawer after a certain time interval.
The pressure in the fresh-keeping drawer is detected by a pressure sensor in the prior art, when the pressure is lower than a set value, the vacuum pump is started, and when the pressure reaches the set value, the vacuum pump is stopped. The internal structure of the sensor generally comprises a spring and a rubber sheet, and the detection precision of the sensor cannot be very accurate due to factors such as poor consistency of the spring when leaving the factory, nonlinear large deformation of rubber materials and the like.
In addition, when the fresh-keeping drawers are continuously vacuumized, the interval starting time of the vacuum pump is usually set to be a fixed interval time value for the fresh-keeping drawers of the same specification configured by the refrigerators of the same product type, and the sealing performance of different fresh-keeping drawers is different due to non-uniformity of delivery (such as non-uniformity of shrinkage deformation of plastic parts or geometric nonlinearity of sealing parts caused by silica gel materials). This results in that for those fresh-keeping drawers which have a better sealing performance, the pressure in the fresh-keeping drawer may still meet the negative pressure requirement when the vacuum pump is restarted, resulting in unnecessary operation of the vacuum pump, reducing the service life of the vacuum pump, and increasing the energy consumption of the system.
The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
Aiming at the problems pointed out in the background art, the invention provides the refrigerator, wherein the controller controls the stopping of the vacuum pump according to the exhaust flow of the vacuum pump, and adjusts the interval starting time of the vacuum pump in the negative pressure maintaining process of the fresh-keeping device so as to prolong the service life of the vacuum pump.
In order to achieve the aim of the invention, the invention is realized by adopting the following technical scheme:
in some embodiments of the present application, there is provided a refrigerator including:
the fresh-keeping device is arranged in the refrigerator;
the vacuum pump is used for vacuumizing the fresh-keeping device;
a flow rate detection device for detecting an exhaust flow rate of the vacuum pump;
the controller receives the exhaust flow data fed back by the flow detection device, and when the exhaust flow of the vacuum pump is lower than a set value, the controller controls the vacuum pump to stop;
wherein, the vacuum pump can keep fresh at intervals of time T in the process of maintaining the negative pressure 0 Starting and working for a period of time T, when the exhaust flow of the vacuum pump is lower than a set value, the controller controls the vacuum pump to stop, and the controller automatically adjusts the interval time T according to the vacuumizing time of the vacuum pump in two adjacent times 0 。
In some embodiments of the present application, in the negative pressure maintaining process of the fresh-keeping device, the time of two adjacent vacuum pumps is respectively T1 and T2, and if T2 is less than T1, the controller prolongs the interval time T 0 。
In some embodiments of the present application, the controller extends the interval to 2T if t2 < 0.5t1 0 。
In some embodiments of the present application, in the negative pressure maintaining process of the fresh-keeping device, the time of two adjacent vacuum pumps is respectively T1 and T2, and if T2 is greater than T1, the controller shortens the interval time T 0 。
In some embodiments of the present application, the controller shortens the interval time to 0.5T if T2 > 2T1 0 。
In some embodiments of the present application, the flow detection device is disposed at an exhaust port of the vacuum pump.
In some embodiments of the present application, the fresh-keeping device is a fresh-keeping drawer, and the fresh-keeping drawer is disposed in a refrigerating chamber of the refrigerator.
In some embodiments of the present application, the fresh-keeping drawer is a fresh-keeping box, and the fresh-keeping box is disposed on a door body of the refrigerator.
Compared with the prior art, the invention has the advantages and positive effects that:
the refrigerator in this application is correlated with the exhaust flow of vacuum pump with the stop action of vacuum pump, and when the exhaust flow of vacuum pump was less than the setting value, the controller controlled vacuum pump stopped, avoided among the prior art pressure sensor to lead to detecting inaccurate problem because of self inner structure.
The application also focuses on optimizing the control of the vacuum pump of the fresh-keeping device in the negative pressure maintaining process, and specifically, the vacuum pump can control the vacuum pump at intervals of time T 0 Starting and working for a period of time T, and automatically adjusting the interval time T by the controller according to the vacuumizing time of the adjacent vacuum pumps 0 . Through the control, the fresh-keeping device with different sealing performances keeps the negative pressure in the middle, and the vacuum pump is started at intervals for a certain time T 0 Will be different, let T 0 Is suitable for the negative pressure condition in the fresh-keeping device. Under the condition of better sealing performance of the fresh-keeping device, the frequent starting of the vacuum pump can be avoided, and the service life of the vacuum pump can be prolonged. Under the condition of poor sealing performance of the fresh-keeping device, the fresh-keeping device can be vacuumized in time to improve the negative pressure effect of the fresh-keeping pumping device.
Other features and advantages of the present invention will become apparent upon review of the detailed description of the invention in conjunction with the drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic diagram of a control principle of a refrigerator according to an embodiment;
fig. 2 is a schematic and simplified schematic view of a structural principle of a refrigerator according to an embodiment.
Reference numerals:
10-fresh-keeping device, 20-vacuum pump, 30-flow detection device and 40-controller.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Referring to fig. 2, the refrigerator in the present application includes a fresh keeping device 10, a vacuum pump 20, a flow rate detecting device 30, and a controller 40.
The fresh-keeping device 10 is arranged in the refrigerator, and the fresh-keeping device 10 is used for providing a negative pressure storage environment for food materials.
The vacuum pump 20 is connected with the fresh-keeping device 10 through a pipeline to vacuumize the fresh-keeping device 10, so that the internal pressure of the fresh-keeping device 10 reaches the negative pressure required by food storage, and the fresh keeping of the food is improved.
The flow rate detection device 30 is used for detecting the exhaust flow rate of the vacuum pump 20 and feeding back data to the controller 40.
The controller 40 controls the start and stop of the vacuum pump 20 according to the received exhaust flow data. When the exhaust flow rate of the vacuum pump 20 is lower than the set value, the controller 40 controls the vacuum pump 20 to stop.
Referring to fig. 1, in use, the food to be stored is first placed into the fresh-keeping device 10, the fresh-keeping device 10 is turned off, and the vacuum pump 20 starts to operate to vacuumize the fresh-keeping device 10. When the exhaust flow rate of the vacuum pump 20 is lower than the set value, the vacuum pump 20 is stopped, and then the fresh-keeping apparatus 10 enters a negative pressure maintaining state.
The stopping action of the vacuum pump 20 is related to the exhaust flow of the vacuum pump 20, and the problem that in the prior art, the pressure sensor is inaccurate in detection due to the internal structure of the pressure sensor is avoided.
The exhaust flow rate when the vacuum pump 20 is stopped is different for the fresh-keeping device 10 with different volumes, and the exhaust flow rate is also related to the volume of the vacuum pump 20. Specific numerical values are known to those of skill in the art from numerous experiments and are not described in detail herein.
In the negative pressure maintaining process of the fresh-keeping device 10, the negative pressure in the fresh-keeping device 10 changes with the lapse of time due to factors such as the sealing property of the fresh-keeping device 10. In order to ensure the negative pressure effect in the fresh-keeping device 10, it is necessary to perform the vacuum pumping operation again on the fresh-keeping device 10 according to the pressure in the fresh-keeping device 10 after a certain time interval.
The present application focuses on optimizing the control of the vacuum pump 20 during the negative pressure maintenance of the fresh keeping apparatus 10, and in particular, with continued reference to FIG. 1, the vacuum pump 20 may be operated at intervals T 0 Starting and working for a period of time T, when the exhaust flow of the vacuum pump 20 is lower than a set value, the controller 40 controls the vacuum pump 20 to stop, and the controller automatically adjusts the interval time T according to the vacuumizing time of the adjacent two vacuum pumps 0 。
By the control, the fresh-keeping device 10 with different sealing performance keeps the negative pressure in the middle, and the vacuum pump 20 is started at intervals of time T 0 Will be different, let T 0 Is compatible with the negative pressure conditions within the fresh keeping apparatus 10. Under the condition that the sealing performance of the fresh-keeping device 10 is good, the frequent starting of the vacuum pump 20 can be avoided, and the service life of the vacuum pump 20 can be prolonged. Under the condition that the sealing performance of the fresh-keeping device 10 is poor, the fresh-keeping device 10 can be vacuumized in time, so that the negative pressure effect of the fresh-keeping device 10 is improved.
Specifically, in the negative pressure maintaining process of the fresh-keeping device 10, the time of two adjacent vacuum pumps 20 is T1 and T2 respectively, if T2 is smaller than T1, which indicates that the sealing performance of the fresh-keeping device 10 is better, the controller 40 prolongs the interval time T 0 In turn, the frequent start times of the vacuum pump 20 are reduced, and the service life of the vacuum pump 20 is prolonged.
If T2 > T1, indicating that the sealing performance of the preservation apparatus 10 is not good, the controller 40 shortens the interval time T 0 Thus, the fresh-keeping device 10 is vacuumized in time, and the negative pressure effect of the fresh-keeping device 10 is improved.
In one embodiment, if T2 < 0.5t1, the controller 40 extends the interval to 2T 0 。
In one embodiment, if T2 > 2T1, the controller 40 shortens the interval time to 0.5T 0 。
In some embodiments of the present application, the flow sensing device 30 is provided at the exhaust port of the vacuum pump 20.
In some embodiments of the present application, the fresh food apparatus 10 is a fresh food drawer that is disposed within a fresh food compartment of a refrigerator.
In some embodiments of the present application, the preservation apparatus 10 is a preservation box, and the preservation box is disposed on a door of a refrigerator.
In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (6)
1. A refrigerator, comprising:
the fresh-keeping device is arranged in the refrigerator;
characterized by further comprising:
the vacuum pump is used for vacuumizing the fresh-keeping device;
a flow rate detection device for detecting an exhaust flow rate of the vacuum pump;
the controller receives the exhaust flow data fed back by the flow detection device, and when the exhaust flow of the vacuum pump is lower than a set value, the controller controls the vacuum pump to stop;
wherein, the vacuum pump can keep fresh at intervals of time T in the process of maintaining the negative pressure 0 Starting and working for a period of time T, when the exhaust flow of the vacuum pump is lower than a set value, the controller controls the vacuum pump to stop, and the controller automatically adjusts the interval time T according to the vacuumizing time of the vacuum pump in two adjacent times 0 ；
In the negative pressure maintaining process of the fresh-keeping device, the time of two adjacent times of vacuumizing of the vacuum pump is respectively T1 and T2, and if T2 is smaller than T1, the controller prolongs the interval time T 0 If T2 > T1, the controller shortens the interval time T 0 。
2. The refrigerator according to claim 1, wherein,
if t2 < 0.5t1, the controller extends the interval to 2T 0 。
3. The refrigerator according to claim 1, wherein,
if T2 > 2T1, the controller shortens the interval time to 0.5T 0 。
4. A refrigerator according to any one of claims 1 to 3, wherein,
the flow detection device is arranged at the exhaust port of the vacuum pump.
5. A refrigerator according to any one of claims 1 to 3, wherein,
the fresh-keeping device is a fresh-keeping drawer which is arranged in the refrigerating chamber of the refrigerator.
6. A refrigerator according to any one of claims 1 to 3, wherein,
the fresh-keeping drawer is a fresh-keeping box, and the fresh-keeping box is arranged on the door body of the refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011134227.7A CN114383359B (en) | 2020-10-21 | 2020-10-21 | Refrigerator with a refrigerator body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011134227.7A CN114383359B (en) | 2020-10-21 | 2020-10-21 | Refrigerator with a refrigerator body |
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| Publication Number | Publication Date |
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| CN114383359A CN114383359A (en) | 2022-04-22 |
| CN114383359B true CN114383359B (en) | 2023-05-23 |
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| CN202011134227.7A Active CN114383359B (en) | 2020-10-21 | 2020-10-21 | Refrigerator with a refrigerator body |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20130138583A (en) * | 2012-06-11 | 2013-12-19 | 엘지전자 주식회사 | A vegitable keeping structure of a refrigerator crisper by a light voccum algorithm and the method thereof |
| CN107270617A (en) * | 2017-06-27 | 2017-10-20 | 合肥市老海新材料有限公司 | A kind of fruits and vegetables anti-mildew fresh-keeping device and its application method |
| CN111578587A (en) * | 2020-04-26 | 2020-08-25 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
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| JPH07103628A (en) * | 1993-10-07 | 1995-04-18 | Hitachi Bill Shisetsu Eng Kk | Method and device for judging leakage of absorption cold and hot water machine |
| CN102295107B (en) * | 2011-05-11 | 2013-07-17 | 宁波泰尔斯电子实业有限公司 | Constant-pressure vacuum preservation box |
| CN103466203B (en) * | 2013-06-21 | 2015-11-25 | 苏州盟通利机电设备有限公司 | Full-automatic vacuum preservation box and control method thereof |
| CN105806004A (en) * | 2014-12-31 | 2016-07-27 | 青岛海尔股份有限公司 | Modified atmosphere fresh-keeping device, control method thereof and refrigerator comprising modified atmosphere fresh-keeping device |
| CN105054773B (en) * | 2015-09-06 | 2017-10-17 | 岭南师范学院 | A kind of pumping control method of fresh-keeping electric pressure cooking saucepan |
| CN107367126B (en) * | 2017-07-06 | 2020-03-31 | 青岛海尔股份有限公司 | Control method of refrigerator and computer storage medium |
| JP6789896B2 (en) * | 2017-08-02 | 2020-11-25 | 日立グローバルライフソリューションズ株式会社 | refrigerator |
| CN109737671B (en) * | 2018-12-28 | 2021-08-24 | 海尔智家股份有限公司 | Refrigerating and freezing device and control method thereof |
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2020
- 2020-10-21 CN CN202011134227.7A patent/CN114383359B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130138583A (en) * | 2012-06-11 | 2013-12-19 | 엘지전자 주식회사 | A vegitable keeping structure of a refrigerator crisper by a light voccum algorithm and the method thereof |
| CN107270617A (en) * | 2017-06-27 | 2017-10-20 | 合肥市老海新材料有限公司 | A kind of fruits and vegetables anti-mildew fresh-keeping device and its application method |
| CN111578587A (en) * | 2020-04-26 | 2020-08-25 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
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Address after: 266000 No.399, Songling Road, Laoshan District, Qingdao City, Shandong Province Applicant after: Hisense refrigerator Co.,Ltd. Address before: 266000 No.399, Songling Road, Laoshan District, Qingdao City, Shandong Province Applicant before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
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