CN114383355B - Refrigerator with a refrigerator body - Google Patents
Refrigerator with a refrigerator body Download PDFInfo
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- CN114383355B CN114383355B CN202011119415.2A CN202011119415A CN114383355B CN 114383355 B CN114383355 B CN 114383355B CN 202011119415 A CN202011119415 A CN 202011119415A CN 114383355 B CN114383355 B CN 114383355B
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- Prior art keywords
- fresh
- pressure
- drawer
- vacuum pump
- keeping
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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
- 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
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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
Landscapes
- 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 refrigerator, which comprises a fresh-keeping drawer, a vacuum pump and a control system, wherein the vacuum pump can keep the negative pressure in the fresh-keeping drawer at intervals of time T 0 Starting and working for a period of time t1 to enable the pressure in the fresh-keeping drawer to reach a preset system pressure value P 0 The control system automatically adjusts the interval time T according to T1 0 . The fresh-keeping drawers with different sealing performances are kept in the negative pressure, and the vacuum pump is started at intervals of time T 0 Will be different, let T 0 Is suitable for the negative pressure condition in the fresh-keeping drawer. Under the condition of better sealing performance of the fresh-keeping drawer, 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 drawer, the fresh-keeping drawer can be vacuumized in time to improve the negative pressure effect of the fresh-keeping drawer.
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.
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 which adjusts the interval starting time of the vacuum pump of the fresh-keeping drawer in the negative pressure maintaining process 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 drawer is arranged in the refrigerator;
the vacuum pump is used for vacuumizing the fresh-keeping drawer;
the control system can control the start and stop of the vacuum pump, and the vacuum pump can keep the vacuum in the negative pressure maintaining process at intervals of time T 0 Activating and operating for a period of time t1 to enable the fresh-keeping drawer to be usedThe internal pressure reaches the preset value P of the system pressure 0 The control system automatically adjusts the interval time T according to T1 0 。
In some embodiments of the present application, the control system is provided with a preset interval working time t 0 If t1 is less than t 0 The control system extends the interval time T 0 。
In some embodiments of the present application, the control system is provided with a preset interval working time t 0 If t1 > t 0 The control system shortens the interval time T 0 。
In some embodiments of the present application, the refrigerator further includes a pressure monitoring device, where the pressure monitoring device is configured to detect a pressure in the fresh-keeping drawer, and when the pressure in the fresh-keeping drawer reaches the system pressure preset value P 0 And when the vacuum pump is stopped, the control system controls the vacuum pump to stop.
In some embodiments of the present application, the refrigerator further includes a pressure monitoring device, when the fresh-keeping drawer is vacuumized, after the vacuum pump works for a first time, the pressure monitoring device detects the pressure in the fresh-keeping drawer, if the pressure data in the fresh-keeping drawer reaches the system pressure preset value P 0 The control system controls the vacuum pump to stop; if the pressure data in the fresh-keeping drawer is smaller than the system pressure preset value P 0 The control system controls the vacuum pump to continue to operate for a second time and then stop.
In some embodiments of the present application, the pressure monitoring device is disposed within the fresh food drawer.
In some embodiments of the present application, the system pressure preset value P 0 75-80KPa.
In some embodiments of the present application, the refrigerator includes a refrigeration compartment, and the fresh food drawer is disposed within the refrigeration compartment.
Compared with the prior art, the invention has the advantages and positive effects that:
the refrigerator disclosed by the application focuses on optimizing the control of the vacuum pump of the fresh-keeping drawer in the process of maintaining the negative pressure,specifically, in the negative pressure maintaining process of the fresh-keeping drawer, the vacuum pump can keep the fresh at intervals of time T 0 Starting and working for a period of time t1 to enable the pressure in the fresh-keeping drawer to reach a preset system pressure value P 0 The control system automatically adjusts the interval time T according to T1 0 . Through the control, the fresh-keeping drawers with different sealing performances are kept in the middle of negative pressure, 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 drawer. Under the condition of better sealing performance of the fresh-keeping drawer, 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 drawer, the fresh-keeping drawer can be vacuumized in time to improve the negative pressure effect of the fresh-keeping drawer.
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 view of a vacuum process of a refrigerator according to an embodiment;
fig. 2 is a schematic view of a vacuum process of a refrigerator according to another embodiment;
fig. 3 is a schematic view of a refrigerator according to an embodiment.
Reference numerals:
10-fresh-keeping drawer, 20-vacuum pump, 30-pressure monitoring device, 40-control system.
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. 3, the refrigerator of the present application includes a fresh food drawer 10, a vacuum pump 20, and a control system 40.
The fresh-keeping drawer 10 is arranged in the refrigerator, and the fresh-keeping drawer 10 is used for providing a negative pressure storage environment for food materials.
The vacuum pump 20 is used for vacuumizing the fresh-keeping drawer 10, so that the internal pressure of the fresh-keeping drawer 10 reaches the negative pressure required by food storage, and the fresh keeping of the food is improved.
The control system 40 may control the start and stop of the vacuum pump 20.
When the vacuum preservation drawer 10 is used, food materials to be stored are placed into the preservation drawer 10, the preservation drawer 10 is closed, the vacuum pump 20 starts to operate to vacuumize the preservation drawer 10, when the pressure in the preservation drawer 10 reaches the system requirement condition, the vacuum pump 20 stops, and then the preservation drawer 10 enters a negative pressure maintaining state. In fig. 1 and 2, this process is represented as an initial stage of evacuation.
In the negative pressure maintaining process of the fresh-keeping drawer 10, the negative pressure in the fresh-keeping drawer 10 is changed along with the time due to the influence of factors such as the sealing performance of the fresh-keeping drawer 10. In order to ensure the negative pressure effect in the fresh-keeping drawer 10, the fresh-keeping drawer 10 needs to be vacuumized again according to the pressure in the fresh-keeping drawer 10 after a certain time interval.
The present application focuses on optimizing the control of the vacuum pump 20 during the negative pressure maintaining process of the fresh keeping drawer 10, specifically, referring to fig. 1 and 2, the vacuum pump 20 will perform the following operation at intervals of time T during the negative pressure maintaining process of the fresh keeping drawer 10 0 Starting and operating for a period of time t1 to enable the pressure in the fresh food drawer 10 to reach the preset system pressure value P 0 The control system 40 automatically adjusts the interval time T according to T1 0 。
Through the control, the fresh-keeping drawers 10 with different sealing performances keep in the process of negative pressure, and the vacuum pump 20 is started at intervals of time T 0 Will be different, let T 0 Is suitable for the negative pressure condition in the fresh-keeping drawer 10. Under the condition that the sealing performance of the fresh-keeping drawer 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 drawer 0 is poor, the fresh-keeping drawer 10 can be vacuumized in time, so that the negative pressure effect of the fresh-keeping drawer 10 is improved.
Specifically, the control system 40 is provided with a preset interval of operation time t 0 If t1 is less than t 0 Indicating that the fresh drawer 10 has better sealing performance, the control system 40 extends the interval time T 0 Thereby reducing the frequent start times of the vacuum pump 20 and prolonging the service life of the vacuum pump 20.
If t1 > t 0 Indicating that the sealing performance of the fresh food drawer 10 is not good, the control system 40 shortens the interval time T 0 Thus, the fresh-keeping drawer 10 is vacuumized in time, and the negative pressure effect of the fresh-keeping drawer 10 is improved.
The pressure in the fresh food drawer 10 is detected by the pressure monitoring device 30, and the pressure monitoring device 30 is arranged in the fresh food drawer 10.
The fresh food drawer 10 is provided with two embodiments for when the vacuum pump 20 is activated and deactivated during the initial stage of evacuation.
First, referring to fig. 1, a vacuum pump 20 vacuums the fresh food drawer 10, when the pressure in the fresh food drawer 10 reaches a preset system pressure value P 0 When the vacuum pump is stopped, the control system 40 controls the vacuum pump.
Second, referring to fig. 2, when the fresh food drawer 10 is vacuumized, after the vacuum pump 20 is operated for a first time, the pressure monitoring device 30 detects the pressure in the fresh food drawer 10, and if the pressure data in the fresh food drawer 10 reaches the preset system pressure value P 0 The control system 30 controls the vacuum pump 20 to stop, and at the moment, the pressure in the fresh-keeping drawer 10 reaches the negative pressure requirement required by the system; if the pressure data in the fresh food drawer 10 is less than the system pressure preset value P 0 The control system 40 controls the vacuum pump 20 to continue to operate for a second time and then stop, at which time the pressure monitoring device 30 does not repeatedly detect the pressure in the fresh food drawer 10.
In the process of the initial stage of vacuumizing in the second embodiment, the pressure monitoring device 30 only performs one-time pressure detection on the fresh-keeping drawer 10, the pressure monitoring device 30 is not always in a working state, the pressure monitoring device 30 is prevented from being in a working state for a long time, the service life and the detection reliability of the pressure monitoring device 30 are improved, the reliability of the whole vacuumizing fresh-keeping system is improved, and the energy consumption of a refrigerator is reduced.
In some embodiments of the present application, the system pressure preset value P 0 75-80KPa.
In some embodiments of the present application, the refrigerator includes a refrigeration compartment, and the fresh food drawer 10 is disposed within the refrigeration compartment.
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 drawer is arranged in the refrigerator;
the vacuum pump is used for vacuumizing the fresh-keeping drawer;
the refrigerator is characterized by further comprising:
the control system can control the start and stop of the vacuum pump, and the vacuum pump can keep the vacuum in the negative pressure maintaining process at intervals of time T 0 Starting and working for a period of time t1 to enable the pressure in the fresh-keeping drawer to reach a preset system pressure value P 0 The control system automatically adjusts the interval time T according to T1 0 ；
The control system is provided with a preset interval working time t 0 If t1 is less than t 0 The control system extends the interval time T 0 ；
The control system is provided with a preset interval working time t 0 If t1 > t 0 The control system shortens the interval time T 0 。
2. The refrigerator according to claim 1, wherein,
the refrigerator further comprises a pressure monitoring device, wherein the pressure monitoring device is used for detecting the pressure in the fresh-keeping drawer when the fresh keeping drawer is freshThe pressure in the drawer reaches the preset system pressure value P 0 And when the vacuum pump is stopped, the control system controls the vacuum pump to stop.
3. The refrigerator according to claim 1, wherein,
the refrigerator further comprises a pressure monitoring device, when the fresh-keeping drawer is vacuumized, after the vacuum pump works for the first time, the pressure monitoring device detects the pressure in the fresh-keeping drawer, and if the pressure data in the fresh-keeping drawer reaches the preset system pressure value P 0 The control system controls the vacuum pump to stop; if the pressure data in the fresh-keeping drawer is smaller than the system pressure preset value P 0 The control system controls the vacuum pump to continue to operate for a second time and then stop.
4. A refrigerator according to claim 2 or 3, wherein,
the pressure monitoring device is arranged in the fresh-keeping drawer.
5. A refrigerator according to any one of claims 1 to 3, wherein,
the system pressure preset value P 0 75-80KPa.
6. A refrigerator according to any one of claims 1 to 3, wherein,
the refrigerator comprises a refrigerating chamber, and the fresh-keeping drawer is arranged in the refrigerating chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011119415.2A CN114383355B (en) | 2020-10-19 | 2020-10-19 | Refrigerator with a refrigerator body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011119415.2A CN114383355B (en) | 2020-10-19 | 2020-10-19 | Refrigerator with a refrigerator body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114383355A CN114383355A (en) | 2022-04-22 |
| CN114383355B true CN114383355B (en) | 2023-06-16 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011119415.2A Active CN114383355B (en) | 2020-10-19 | 2020-10-19 | Refrigerator with a refrigerator body |
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| Country | Link |
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| CN (1) | CN114383355B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH640943A5 (en) * | 1978-10-02 | 1984-01-31 | Walter Nicolai | Method for monitoring the liquid-tightness of a storage vessel |
| JPH07280398A (en) * | 1994-04-04 | 1995-10-27 | Hitachi Bill Shisetsu Eng Kk | Method and apparatus for determining air infiltration of refrigerator |
| JP2006091127A (en) * | 2004-09-21 | 2006-04-06 | Shibaura Mechatronics Corp | Vacuum apparatus, and apparatus and method for sticking substrate |
| CN101948029A (en) * | 2010-07-13 | 2011-01-19 | 海尔集团公司 | Vacuum preservation device, refrigerator and control method of vacuum preservation device |
| CN103466203A (en) * | 2013-06-21 | 2013-12-25 | 苏州盟通利机电设备有限公司 | Full-automatic vacuum preservation box and control method thereof |
| CN205332651U (en) * | 2016-01-22 | 2016-06-22 | 魏笑予 | Vacuum fresh -keeping refrigerator |
| CN107752720A (en) * | 2017-07-14 | 2018-03-06 | 浙江苏泊尔家电制造有限公司 | Method, cooking apparatus and the computer-readable storage medium of food fresh-keeping |
| CN108799598A (en) * | 2018-06-15 | 2018-11-13 | 北京空间机电研究所 | A kind of time computational methods, solenoid valve controller, solution vacuum system and method |
-
2020
- 2020-10-19 CN CN202011119415.2A patent/CN114383355B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH640943A5 (en) * | 1978-10-02 | 1984-01-31 | Walter Nicolai | Method for monitoring the liquid-tightness of a storage vessel |
| JPH07280398A (en) * | 1994-04-04 | 1995-10-27 | Hitachi Bill Shisetsu Eng Kk | Method and apparatus for determining air infiltration of refrigerator |
| JP2006091127A (en) * | 2004-09-21 | 2006-04-06 | Shibaura Mechatronics Corp | Vacuum apparatus, and apparatus and method for sticking substrate |
| CN101948029A (en) * | 2010-07-13 | 2011-01-19 | 海尔集团公司 | Vacuum preservation device, refrigerator and control method of vacuum preservation device |
| CN103466203A (en) * | 2013-06-21 | 2013-12-25 | 苏州盟通利机电设备有限公司 | Full-automatic vacuum preservation box and control method thereof |
| CN205332651U (en) * | 2016-01-22 | 2016-06-22 | 魏笑予 | Vacuum fresh -keeping refrigerator |
| CN107752720A (en) * | 2017-07-14 | 2018-03-06 | 浙江苏泊尔家电制造有限公司 | Method, cooking apparatus and the computer-readable storage medium of food fresh-keeping |
| CN108799598A (en) * | 2018-06-15 | 2018-11-13 | 北京空间机电研究所 | A kind of time computational methods, solenoid valve controller, solution vacuum system and method |
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| Publication number | Publication date |
|---|---|
| CN114383355A (en) | 2022-04-22 |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 266000 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant after: Hisense refrigerator Co.,Ltd. Address before: 266000 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
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