CN108775763B - Refrigerator and control method thereof - Google Patents
Refrigerator and control method thereof Download PDFInfo
- Publication number
- CN108775763B CN108775763B CN201810514702.XA CN201810514702A CN108775763B CN 108775763 B CN108775763 B CN 108775763B CN 201810514702 A CN201810514702 A CN 201810514702A CN 108775763 B CN108775763 B CN 108775763B
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- unit
- control unit
- box body
- way valve
- refrigerator
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 56
- 238000001514 detection method Methods 0.000 claims description 18
- 238000005286 illumination Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
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
-
- 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
- F25D17/047—Pressure equalising devices
-
- 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
- F25D23/006—General constructional features for mounting refrigerating machinery components
-
- 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
- F25D27/00—Lighting arrangements
- F25D27/005—Lighting arrangements combined with control means
-
- 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
-
- 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
- F25D29/005—Mounting of control devices
-
- 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
- F25D2600/02—Timing
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 provides a refrigerator and a control method thereof, wherein the refrigerator comprises a refrigerator body; the door body opens or closes the box body; the one-way valve is arranged on the box body or the door body; the control unit is in communication connection with the one-way valve to control the opening and closing of the one-way valve; the timing unit is in communication connection with the control unit and is internally preset with a first time period; the monitoring unit is in communication connection with the timing unit and is used for monitoring whether the box body is closed or not; after the monitoring unit monitors that the box body is converted from a non-closed state to a closed state for a first time period, the timing unit sends an opening signal to the control unit, the control unit opens the one-way valve according to the opening signal to be communicated with the inside and the outside of the box body, the one-way valve is opened through the timing unit and the monitoring unit to be communicated with the inside and the outside of the box body, gas is supplemented into the box body, the gas pressure difference inside and outside the box body is reduced, the force required by door opening is reduced, and therefore the user can easily open the door.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator and a control method thereof, wherein the refrigerator solves the problem of air pressure difference between inside and outside of a refrigerator body so as to realize easy door opening of a user.
Background
The existing refrigerator cools and cools the inner space of the refrigerator for a certain time after the door is closed, the internal temperature of the refrigerator tends to be stable, and the air pressure in the refrigerator is lower than the air pressure outside the refrigerator, so that the air pressure difference exists inside and outside the refrigerator, a user can open the refrigerator by applying a large force when opening the door, even the refrigerator cannot be opened, the door is opened inconveniently, and the use of the user is influenced.
In view of the above, it is desirable to provide an improved refrigerator and a control method thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide a refrigerator and a control method thereof, which can avoid the difficulty of opening a door due to overlarge air pressure difference between the inside and the outside of the refrigerator.
In order to achieve the above object, the present invention provides a refrigerator, comprising a cabinet; the door body opens or closes the box body; the one-way valve is arranged on the box body or the door body; the control unit is in communication connection with the one-way valve to control the opening and closing of the one-way valve; the timing unit is in communication connection with the control unit and is internally preset with a first time period; the monitoring unit is in communication connection with the timing unit and is used for monitoring whether the box body is closed or not; after the monitoring unit monitors that the box body is converted from a non-closed state to a closed state for a first time period, the timing unit sends an opening signal to the control unit, and the control unit opens the one-way valve to communicate the inside and the outside of the box body according to the opening signal.
As a further improvement of the invention, the one-way valve is mounted on the top of the box body.
As a further improvement of the present invention, the refrigerator further includes a pre-cooling unit located at one end of the one-way valve close to the inner side of the refrigerator body.
As a further improvement of the invention, the monitoring unit is mounted inside the box body.
As a further improvement of the present invention, the refrigerator further includes an illumination lamp installed in the refrigerator body, the monitoring unit includes a lamp for monitoring an open/close state of the door body, when the monitoring unit monitors that the door body is switched from a closed state to an open state, the illumination lamp is turned on, and when the monitoring unit monitors that the door body is switched from the open state to the closed state, the illumination lamp is turned off.
As a further improvement of the present invention, a second time period is preset in the timing unit, after the one-way valve is opened for the second time period, the timing unit sends a closing signal to the control unit, and the control unit closes the one-way valve according to the closing signal.
As a further improvement of the present invention, the refrigerator further includes a pressure difference detection unit in communication connection with the control unit, the pressure difference detection unit is configured to detect a pressure difference between the inside and the outside of the refrigerator body, when the check valve is opened, the pressure difference detection unit is opened, and when the pressure difference detected by the pressure difference detection unit is zero, the pressure difference detection unit sends a closing signal to the control unit, and the control unit closes the check valve according to the closing signal.
As a further improvement of the present invention, the pressure difference detecting unit includes a first pressure sensor located inside the tank to detect a pressure inside the tank, a second pressure sensor located on an outer surface of the tank to detect a pressure outside the tank, and a processor connected to the first pressure sensor and the second pressure sensor, the processor calculating a pressure difference according to the pressures detected by the first pressure sensor and the second pressure sensor, and the processor being connected to the control unit in communication.
In order to achieve the above object, the present invention further provides a control method applied to the above refrigerator, the control method comprising the steps of: starting a monitoring unit, a control unit and a timing unit; after the monitoring unit monitors that the box body is converted from a non-closed state to a closed state for a first time period, the timing unit sends an opening signal to the control unit, and the control unit opens the one-way valve; and after the one-way valve is opened for a second time period, the timing unit sends a closing signal to the control unit, and the control unit closes the one-way valve.
In order to achieve the above object, the present invention further provides a control method applied to the above refrigerator, the control method comprising the steps of: starting a monitoring unit, a control unit and a timing unit; after the monitoring unit monitors that the box body is converted from a non-closed state to a closed state for a first time period, the timing unit sends an opening signal to the control unit, and the control unit opens the one-way valve and simultaneously opens the differential pressure detection unit; when the pressure difference detected by the pressure difference detection unit is zero, the pressure difference monitoring unit sends a closing signal to the control unit, and the control unit closes the one-way valve.
The invention has the beneficial effects that: according to the refrigerator, the one-way valve is opened through the timing unit and the monitoring unit, the inside and the outside of the refrigerator body are communicated, gas is supplemented into the refrigerator body, the pressure difference between the inside and the outside of the refrigerator body is reduced, the force required by door opening is reduced, the user can easily open the door, and the refrigerator is simple to operate and convenient to use.
Drawings
FIG. 1 is a schematic structural view of a refrigerator according to the present invention;
FIG. 2 is a schematic diagram of a control method of an embodiment of a refrigerator according to the present invention;
fig. 3 is a schematic view of a control method of another embodiment of the refrigerator of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, the refrigerator 100 of the present invention includes a refrigerator body 11, a door body 12, a check valve 2, a control unit, a timing unit, and a monitoring unit.
The door 12 is used for opening or closing the cabinet 11. The check valve 2 is mounted on the box body 11 or the door body 12. Specifically, the check valve 2 is installed on the top of the box body 11. When the door body 12 and the one-way valve 2 are both closed, the box body 11 is in a closed state. When any one of the door body 12 and the one-way valve 2 is opened, the box body 11 is in a non-closed state.
The control unit is in communication connection with the one-way valve 2 to control the opening and closing of the one-way valve 2. Specifically, the control unit is mounted on the outer side of the box body 11.
The timing unit is in communication connection with the control unit and is preset with a first time period.
The monitoring unit is installed inside the box body 11. The monitoring unit is used for monitoring whether the box body 11 is closed or not, and the monitoring unit is in communication connection with the timing unit. Specifically, the monitoring unit monitors the opening and closing state of the door body 12 and monitors the opening and closing state of the check valve 2. The monitoring unit may be a sensor structure.
After the monitoring unit monitors that the box body 11 is converted from a non-closed state to a closed state for a first time period, the timing unit sends an opening signal to the control unit, and the control unit opens the one-way valve 2 according to the opening signal to communicate the inside and the outside of the box body 11, so that the external gas enters the box body 11 to increase the amount of the gas in the box body 11 to increase the gas pressure in the box body 11. Open check valve 2 through timing unit and monitoring unit promptly, inside and outside the intercommunication box 11, to the supplementary gas in the box 11, reduce the inside and outside atmospheric pressure difference of box 11, reduce the power that opens the door and realize that the user easily opens the door, easy operation, convenient to use.
Specifically, when the check valve 2 is in a closed state, after the monitoring unit monitors that the door body 12 is switched from an open state to a closed state for a first time period, the control unit opens the check valve 2; or when the door body 12 is in the closed state, the monitoring unit monitors that the one-way valve 2 is switched from the open state to the closed state for a first time period, and the control unit opens the one-way valve 2.
Preferably, the refrigerator 100 further includes an illumination lamp installed in the refrigerator body 11, when the monitoring unit monitors that the door 12 is switched from the closed state to the open state, the illumination lamp is turned on, and when the monitoring unit monitors that the door 12 is switched from the open state to the closed state, the illumination lamp is turned off, so that the monitoring unit is multipurpose, and the cost of the refrigerator 100 is saved.
In an embodiment, a second time period is preset in the timing unit, after the one-way valve 2 is opened for the second time period, the timing unit sends a closing signal to the control unit, and the control unit closes the one-way valve 2 according to the closing signal. The refrigerator 100 closes the one-way valve 2 in time through the timing unit, so as to ensure the refrigerating or freezing effect of the refrigerator 100.
The control method of the refrigerator 100 includes the steps of:
starting a monitoring unit, a control unit and a timing unit;
after the monitoring unit monitors that the box body 11 is converted from a non-closed state to a closed state for a first time period, the timing unit sends an opening signal to the control unit, and the control unit opens the one-way valve 2;
and after the one-way valve 2 is opened for a second time period, the timing unit sends a closing signal to the control unit, and the control unit closes the one-way valve 2.
The step of converting the non-closed state of the box body 11 into the closed state specifically includes that when the one-way valve 2 is in the closed state, the monitoring unit monitors that the door body 12 is converted from the open state into the closed state; and when the door body 12 is in a closed state, the monitoring unit monitors that the one-way valve 2 is switched from an open state to a closed state.
In another embodiment, the refrigerator 100 further includes a pressure difference detecting unit in communication connection with the control unit, the pressure difference detecting unit is configured to detect a pressure difference between the inside and the outside of the refrigerator body 11, when the check valve 2 is opened, the pressure difference detecting unit is opened, and when the pressure difference detected by the pressure difference detecting unit is zero, the pressure difference detecting unit sends a closing signal to the control unit, and the control unit closes the check valve 2 according to the closing signal. Specifically, the pressure difference detection unit includes a first pressure sensor located inside the box body 11 to detect the pressure inside the box body 11, a second pressure sensor located on the outer surface of the box body 11 to detect the pressure outside the box body 11, and a processor connected to the first pressure sensor and the second pressure sensor, the processor calculates the pressure difference according to the pressures detected by the first pressure sensor and the second pressure sensor, and the processor is in communication connection with the control unit.
The control method of the refrigerator 100 includes the steps of:
starting a monitoring unit, a control unit and a timing unit;
after the monitoring unit monitors that the box body 11 is converted from a non-closed state to a closed state for a first time period, the timing unit sends an opening signal to the control unit, and the control unit opens the one-way valve 2 and simultaneously opens the differential pressure detection unit;
when the pressure difference detected by the pressure difference detection unit is zero, the pressure difference monitoring unit sends a closing signal to the control unit, and the control unit closes the check valve 2. The pressure inside and outside the box body 11 is accurately mastered through the pressure difference monitoring unit, so that the air pressure inside the box body 11 is accurately regulated and controlled.
The step of converting the non-closed state of the box body 11 into the closed state specifically includes that when the one-way valve 2 is in the closed state, the monitoring unit monitors that the door body 12 is converted from the open state into the closed state; and when the door body 12 is in a closed state, the monitoring unit monitors that the one-way valve 2 is switched from an open state to a closed state.
In summary, in the refrigerator 100 of the present invention, the timing unit and the monitoring unit open the check valve 2 to communicate the inside and the outside of the box 11, and supplement gas into the box 11, so as to reduce the pressure difference between the inside and the outside of the box 11, reduce the force required for opening the door, so as to allow a user to open the door easily, and have the advantages of simple operation and convenient use.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. A refrigerator, characterized in that: comprises that
A box body;
the door body opens or closes the box body;
the one-way valve is arranged on the box body or the door body;
the control unit is in communication connection with the one-way valve to control the opening and closing of the one-way valve;
the timing unit is in communication connection with the control unit and is internally preset with a first time period;
the monitoring unit is in communication connection with the timing unit and is used for monitoring whether the box body is closed or not;
after the monitoring unit monitors that the box body is converted from a non-closed state to a closed state for a first time period, the timing unit sends an opening signal to the control unit, and the control unit opens the one-way valve to communicate the inside and the outside of the box body according to the opening signal.
2. The refrigerator according to claim 1, wherein: the check valve is installed at the top of the box body.
3. The refrigerator according to claim 1, wherein: the refrigerator also comprises a precooling unit which is positioned at one end of the one-way valve close to the inner side of the refrigerator body.
4. The refrigerator according to claim 1, wherein: the monitoring unit is installed inside the box body.
5. The refrigerator according to claim 1, wherein: the refrigerator is still including installing the light in the box, monitoring unit is including the monitoring the switching state of the door body, works as monitoring unit monitors the door body is when the open mode is converted into by the closed mode, the light is lighted, works as monitoring unit monitors the door body is when the closed mode is converted into by the open mode, the light is closed.
6. The refrigerator according to claim 1, wherein: and a second time period is also preset in the timing unit, after the one-way valve is opened for the second time period, the timing unit sends a closing signal to the control unit, and the control unit closes the one-way valve according to the closing signal.
7. The refrigerator according to claim 1, wherein: the refrigerator also comprises a pressure difference detection unit which is in communication connection with the control unit, the pressure difference detection unit is used for detecting the pressure difference between the inside and the outside of the refrigerator body, when the one-way valve is opened, the pressure difference detection unit is opened, when the pressure difference detected by the pressure difference detection unit is zero, the pressure difference detection unit sends a closing signal to the control unit, and the control unit closes the one-way valve according to the closing signal.
8. The refrigerator according to claim 7, wherein: the pressure difference detection unit comprises a first pressure sensor, a second pressure sensor and a processor, wherein the first pressure sensor is located inside the box body and used for detecting the pressure inside the box body, the second pressure sensor is located on the outer surface of the box body and used for detecting the pressure outside the box body, the processor is connected with the first pressure sensor and the second pressure sensor, the processor calculates the pressure difference according to the pressures detected by the first pressure sensor and the second pressure sensor, and the processor is in communication connection with the control unit.
9. A control method applied to the refrigerator of claim 6, characterized in that: the control method comprises the following steps: starting a monitoring unit, a control unit and a timing unit;
after the monitoring unit monitors that the box body is converted from a non-closed state to a closed state for a first time period, the timing unit sends an opening signal to the control unit, and the control unit opens the one-way valve;
and after the one-way valve is opened for a second time period, the timing unit sends a closing signal to the control unit, and the control unit closes the one-way valve.
10. A control method applied to the refrigerator of claim 7, characterized in that: the control method comprises the following steps: starting a monitoring unit, a control unit and a timing unit;
after the monitoring unit monitors that the box body is converted from a non-closed state to a closed state for a first time period, the timing unit sends an opening signal to the control unit, and the control unit opens the one-way valve and simultaneously opens the differential pressure detection unit;
when the pressure difference detected by the pressure difference detection unit is zero, the pressure difference monitoring unit sends a closing signal to the control unit, and the control unit closes the one-way valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110726998.3A CN113503671A (en) | 2018-05-25 | 2018-05-25 | Refrigerator with a door |
| CN201810514702.XA CN108775763B (en) | 2018-05-25 | 2018-05-25 | Refrigerator and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810514702.XA CN108775763B (en) | 2018-05-25 | 2018-05-25 | Refrigerator and control method thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110726998.3A Division CN113503671A (en) | 2018-05-25 | 2018-05-25 | Refrigerator with a door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108775763A CN108775763A (en) | 2018-11-09 |
| CN108775763B true CN108775763B (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810514702.XA Active CN108775763B (en) | 2018-05-25 | 2018-05-25 | Refrigerator and control method thereof |
| CN202110726998.3A Pending CN113503671A (en) | 2018-05-25 | 2018-05-25 | Refrigerator with a door |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110726998.3A Pending CN113503671A (en) | 2018-05-25 | 2018-05-25 | Refrigerator with a door |
Country Status (1)
| Country | Link |
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| CN (2) | CN108775763B (en) |
Citations (7)
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|---|---|---|---|---|
| KR20000019752A (en) * | 1998-09-15 | 2000-04-15 | 전주범 | Control method for opening refrigerator door |
| CN101280991A (en) * | 2007-04-05 | 2008-10-08 | 深圳清华大学研究院 | Device and method for automatically regulating refrigerated container body inside and outside air pressure balance |
| CN201828101U (en) * | 2010-09-30 | 2011-05-11 | 青岛营上电器有限公司 | Air pressure balance valve of freezer door body |
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| CN202902742U (en) * | 2012-10-24 | 2013-04-24 | 海尔集团公司 | Balance valve used for opening and closing of door of refrigerator and refrigerator provided with balance valve |
| CN203478783U (en) * | 2013-09-12 | 2014-03-12 | 合肥美的电冰箱有限公司 | Refrigerator |
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| CH37124A (en) * | 1906-08-06 | 1907-04-30 | Lange & Cie L | Refrigerator for domestic and commercial use |
| JP3114892B2 (en) * | 1992-02-19 | 2000-12-04 | 株式会社日立製作所 | Heating load cooling method in thermo-hygrostat and thermo-hygrostat |
| KR19980052935A (en) * | 1996-12-26 | 1998-09-25 | 배순훈 | Negative pressure balancer in the freezer |
| KR100595433B1 (en) * | 1999-11-18 | 2006-07-03 | 삼성전자주식회사 | Refrigerator and Control Method Thereof |
| WO2010039800A2 (en) * | 2008-09-30 | 2010-04-08 | Thermo Fisher Scientific (Asheville) Llc | Frost reduction by active circulation |
| CN204165314U (en) * | 2014-10-10 | 2015-02-18 | 澳柯玛股份有限公司 | A kind of refrigerator drain assembly |
| CN106839603A (en) * | 2017-02-13 | 2017-06-13 | 合肥华凌股份有限公司 | For the air pressure balance structure and refrigeration device of refrigeration device |
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2018
- 2018-05-25 CN CN201810514702.XA patent/CN108775763B/en active Active
- 2018-05-25 CN CN202110726998.3A patent/CN113503671A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000019752A (en) * | 1998-09-15 | 2000-04-15 | 전주범 | Control method for opening refrigerator door |
| CN101280991A (en) * | 2007-04-05 | 2008-10-08 | 深圳清华大学研究院 | Device and method for automatically regulating refrigerated container body inside and outside air pressure balance |
| CN201828101U (en) * | 2010-09-30 | 2011-05-11 | 青岛营上电器有限公司 | Air pressure balance valve of freezer door body |
| KR20120107165A (en) * | 2011-03-21 | 2012-10-02 | 대동하이렉스 주식회사 | Room pressure adjusting method for vehicle |
| CN102252487A (en) * | 2011-08-23 | 2011-11-23 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN202902742U (en) * | 2012-10-24 | 2013-04-24 | 海尔集团公司 | Balance valve used for opening and closing of door of refrigerator and refrigerator provided with balance valve |
| CN203478783U (en) * | 2013-09-12 | 2014-03-12 | 合肥美的电冰箱有限公司 | Refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108775763A (en) | 2018-11-09 |
| CN113503671A (en) | 2021-10-15 |
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Address after: 266101 Haier Road, Laoshan District, Qingdao, Qingdao, Shandong Province, No. 1 Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: Qingdao Haier Joint Stock Co.,Ltd. |
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