CN2901196Y - Electric refrigerator with vacuum freshness preserving system - Google Patents

Electric refrigerator with vacuum freshness preserving system Download PDF

Info

Publication number
CN2901196Y
CN2901196Y CNU200620071501XU CN200620071501U CN2901196Y CN 2901196 Y CN2901196 Y CN 2901196Y CN U200620071501X U CNU200620071501X U CN U200620071501XU CN 200620071501 U CN200620071501 U CN 200620071501U CN 2901196 Y CN2901196 Y CN 2901196Y
Authority
CN
China
Prior art keywords
vacuum
refrigerator
crisper
fresh
vavuum pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU200620071501XU
Other languages
Chinese (zh)
Inventor
周小天
冯骏洪
隽宗权
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Electrical Appliances Jiangsu Co Ltd
Original Assignee
BSH Electrical Appliances Jiangsu Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Electrical Appliances Jiangsu Co Ltd filed Critical BSH Electrical Appliances Jiangsu Co Ltd
Priority to CNU200620071501XU priority Critical patent/CN2901196Y/en
Application granted granted Critical
Priority to EP07729194A priority patent/EP2024695A1/en
Priority to PCT/EP2007/054746 priority patent/WO2007135048A1/en
Priority to RU2008148161/21A priority patent/RU2427768C2/en
Publication of CN2901196Y publication Critical patent/CN2901196Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details 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
    • F25D2317/04Treating air flowing to refrigeration compartments
    • F25D2317/043Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment

Abstract

Disclosed is a refrigerator with a vacuum fresh-keeping system, comprises at least one vacuum fresh-keeping tube with an aerating device and a vapor extraction device, an abstract pipe connected with the vacuum fresh-keeping tube, a vacuum air pump connected to the abstract pipe, a generator that drives the vacuum air pump, and a control device for controlling the on-off of the abstract pipe. Via the control device, the on-off control of the vacuum lead of the vacuum fresh-keeping tube and the selective switch system can be achieved.

Description

Refrigerator with vacuum fresh-keeping system
[technical field]
The utility model relates to a kind of refrigerator, refers in particular to a kind of refrigerator with vacuum fresh-keeping system.
[background technology]
As everyone knows, food can the long period under refrigeration or freezing low temperature storage, the length of food storage time not only is subjected to the influence of temperature and humidity, also be subjected to factor affecting such as the oxygen content of food storage environmental air and bacterium, for the time that food is preserved longer, people are desirable to provide the food storage environment of a hypoxemia, low bacterium, as vacuum crisper.
European patent EP 0405680A2 has disclosed the vacuum crisper in a kind of refrigerating chamber that is arranged on refrigerator, as shown in Figure 1, this vacuum crisper comprises that a box body 17 and one are connected to openable lid 19 on the box body, rear side at box body is provided with a suction nozzle 25, this suction nozzle aligns with interface 27 on the cold storage chamber of refrigerator rear wall, close and vavuum pump when starting when door of refrigerator 12, this suction nozzle and interface are closely drawn together, and vacuum crisper is evacuated; When door of refrigerator 12 was opened, because door 12 links together with box body 18, suction nozzle 25 was dragged away from interface 27, and vacuum crisper is inflated automatically by suction nozzle 25.The defective of this design is: if open door of refrigerator 12, then vacuum crisper necessarily is inflated release, and the user does not have other selection, if the user only wants to open refrigerator doors and do not want to discharge vacuum crisper, then this design can not reach requirement.
Chinese patent ZL03245813.4 has disclosed the vacuum fresh-keeping system in the another kind of refrigerating chamber that is arranged on refrigerator, and as shown in Figure 2, the vacuum crisper and the door of refrigerator of this vacuum fresh-keeping system are separate, overcome the defective of European patent EP 0405680A2.But its design defect is: the inflation ball valve of this vacuum crisper is arranged in the capping, and the user needs the at first inside and outside air pressure of twisting inflation ball valve balance vacuum box if will open vacuum box, just can open capping then; Promptly opening vacuum box needs two steps, and this design is not easy to operator's use.And comprise in this vacuum fresh-keeping system that two are connected to the vacuum crisper that the different branches of pipeline are extracted in control, owing to there is not special control to extract the device of pipeline break-make, refrigerator can't be realized separately one in two vacuum crispers being vacuumized.
[summary of the invention]
The purpose of this utility model is to provide a kind of refrigerator with vacuum fresh-keeping system, and this vacuum fresh-keeping system is convenient to user's Selective Control.
For achieving the above object, the utility model provides a kind of refrigerator with vacuum fresh-keeping system, this vacuum fresh-keeping system comprises that at least one has the vacuum crisper of aerating device and air extractor, the extraction pipeline that is connected with this at least one vacuum crisper, be connected to vavuum pump that extracts pipeline and the motor that drives vavuum pump, and the control device of pipeline break-make is extracted in control.The control device that the pipeline break-make is extracted in wherein said control can be a magnetic valve, for example: as check valve, two-way valve, two-position three-way valve, 3-position-3-way valve, or three-position four-way valve.
As further improvement of the utility model, this vacuum fresh-keeping system also comprises the checkout gear of detection system vacuum, the checkout gear of described detection system vacuum can be the vacuum transducer that is arranged on the vacuum crisper, also can be the vacuum transducer that is arranged at the porch of vavuum pump.
As further improvement of the utility model, described aerating device and air extractor are the check valves that is installed in respectively on the vacuum crisper.
As further improvement of the utility model, described vacuum fresh-keeping system comprises two separate vacuum crispers, the aerating device of described two vacuum crispers is separate, the control device that extracts the pipeline break-make by described control can independently carry out vacuum drawn to arbitrary vacuum crisper, described control device can be one and be arranged on the ducted three-position four-way valve of extraction, this vacuum fresh-keeping system also comprises the checkout gear of detection system vacuum, for example is arranged on the vacuum crisper or the vacuum transducer of the porch of empty pump.
Described vacuum crisper can be arranged in the refrigerating chamber of refrigerator, installs on the inwall of described refrigerating chamber and extracts pipeline to the joint that is connected, and the air extractor of this joint and vacuum crisper connects.
As further improvement of the utility model, on the described vavuum pump noise absorber is set.
The beneficial effect of refrigerator of the present utility model is: owing to be provided with the control device that the pipeline break-make is extracted in control in the extraction pipeline of vacuum insurance system, realized the selective switch control to vacuum box.
[Brief Description Of Drawings]
Fig. 1 is a kind of existing schematic diagram with refrigerator of vacuum fresh-keeping system;
Fig. 2 is another kind of existing schematic diagram with vacuum fresh-keeping system;
Fig. 3 is the systematic schematic diagram of vacuum fresh-keeping system of the present utility model;
Fig. 4 is the schematic diagram of first embodiment of the present utility model;
Fig. 5 is the schematic diagram of second embodiment of the present utility model;
Fig. 6 is the schematic diagram of the 3rd embodiment of the present utility model;
Fig. 7 is the schematic diagram of the 4th embodiment of the present utility model;
Fig. 8 is the schematic diagram of the 5th embodiment of the present utility model;
Fig. 9 is the schematic diagram of the 6th embodiment of the present utility model.
[specific embodiment]
Referring to Fig. 3, vacuum fresh-keeping system of the present utility model comprises vavuum pump 1, drives the motor 2 of vavuum pump, the extraction pipeline 3 that is connected with vavuum pump 1, and extraction pipeline 3 extends two branches and is connected respectively on two vacuum crispers 7.One end of vacuum crisper 7 is provided with the air extractor 6 of extracting vacuum, and it is separate that the other end is provided with the aerating device 8 of 8, two vacuum crispers of aerating device that discharge vacuum.The air extractor 6 that the end of extraction pipeline 3 is provided with on a joint 5 and the vacuum crisper 7 connects.In two branches that extract pipeline 3, also be provided with the control device 4 that pipeline 3 break-makes are extracted in control, can optionally close or open arbitrary branch, thereby realize the selectivity of two vacuum crispers 7 is vacuumized control by this control device 4.Need to prove, the system that disclosed among Fig. 3 has the schematic diagram of two vacuum boxs 7, if vacuum fresh-keeping system only have a vacuum crisper or have three and above branch be connected to three and on vacuum crispers, be useful in equally to extract and control is set in the pipeline extracts the control device of pipeline break-make and realize the control that vacuumizes vacuum box.In addition, the noise in the time of can on vavuum pump 1, adding silencing means 10 with 1 running of reduction vavuum pump.
Referring to Fig. 4, the vacuum fresh-keeping system of first embodiment of the present utility model comprises vavuum pump 1, drive the motor (not indicating among the figure) of vavuum pump, extract pipeline 3, extract two check valve 4a of the control device of pipeline 3 break-makes as control, interface 5a is arranged on the vacuum crisper 7 as the check valve 6a of air extractor with as the check valve 8a of aerating device.After vacuum crisper 7 is evacuated, rely on check valve 4a that vacuum box is carried out pressurize.
Referring to Fig. 5, the vacuum fresh-keeping system of second embodiment of the present utility model comprises vavuum pump 1, drive the motor (not indicating among the figure) of vavuum pump, extract pipeline 3, extract two 2/2-way valve 4b of the control device of pipeline 3 break-makes as control, interface 5b is arranged on the vacuum crisper 7 the check valve 8b as aerating device.After vacuum crisper 7 is evacuated, rely on 2/2-way valve 4b that vacuum box is carried out pressurize.In addition, a device 9b who detects vacuum is set on vacuum crisper 7,,, when the vacuum of system reaches the maximum of setting, control system is sent the signal that stops pump work to detect the vacuum of vacuum box as the negative-pressure vacuum sensor.
Referring to Fig. 6, the vacuum fresh-keeping system of the 3rd embodiment of the present utility model comprises vavuum pump 1, drive the motor 2 of vavuum pump, extract pipeline 3, extract two two-position three-way valve 4c of the control device of pipeline 3 break-makes as control, interface 5c is arranged on the vacuum crisper 7 as the check valve 6c of air extractor with as the check valve 8c of aerating device.After vacuum crisper 7 is evacuated, rely on two-position three-way valve 4c that vacuum box is carried out pressurize.Referring to Fig. 3, the system of first embodiment extracts pipeline 3 and also is pumped into vacuum when vacuum box 7 is vacuumized, thus finish vacuumize after with vacuum box 7 from interface 5 take off need be bigger power.Not being both of the present embodiment and first embodiment: owing to adopted two-position three-way valve 4c, after system was evacuated, the extraction pipeline 3 that is connected with vacuum box 4 became the pressure of atmosphere automatically, was convenient to vacuum box 7 and took off from interface 5.
Referring to Fig. 7, the vacuum fresh-keeping system of the 4th embodiment of the present utility model is close with the 3rd embodiment shown in Figure 6, and difference is that the 4th embodiment replaces two two-position three-way valve 4c extract pipeline 3 break-makes as control control device with a three-position four-way valve 4d.Referring to Fig. 8, the vacuum fresh-keeping system of the 5th embodiment of the present utility model is close with the 4th embodiment shown in Figure 7, difference is that the 5th embodiment is provided with a device 9e who detects vacuum in the porch of vavuum pump 1, as a negative vacuum pressure sensor with continuous process amount.Referring to Fig. 9, the vacuum fresh-keeping system of the 6th embodiment of the present utility model is close with the 5th embodiment shown in Figure 8, difference is that the 6th embodiment is provided with two device 9f that detect vacuum in the porch of vavuum pump 1, as two negative vacuum pressure sensors with switching value output.Noise when in addition, the 3rd embodiment to the six embodiments of the present utility model are all installed silencing means 10 with 1 running of reduction vavuum pump on vavuum pump 1.
The vacuum fresh-keeping system that first embodiment to the, six embodiments of the present utility model are disclosed all can be installed in the household electric refrigerator, and wherein vacuum box 7 can be arranged in the refrigerating chamber of refrigerator, and interface 5 can be arranged on the inwall of refrigerating chamber.Vacuum box 7 can be independently takes out in the refrigerator and preserves after being evacuated.And when from system, taking out a certain vacuum box, do not influence the function of the extracting vacuum of another vacuum box.

Claims (12)

1. refrigerator with vacuum fresh-keeping system, this vacuum fresh-keeping system comprises that at least one has the vacuum crisper of aerating device and air extractor, the extraction pipeline that is connected with this at least one vacuum crisper, and the vavuum pump and the motor that drives vavuum pump that are connected to the extraction pipeline, it is characterized in that this vacuum fresh-keeping system also comprises the control device of control extraction pipeline break-make.
2. refrigerator as claimed in claim 1 is characterized in that, the control device that the pipeline break-make is extracted in described control is a magnetic valve, for example: check valve, two-way valve, two-position three-way valve, 3-position-3-way valve, or three-position four-way valve.
3. refrigerator as claimed in claim 1 or 2 is characterized in that this vacuum fresh-keeping system also comprises the checkout gear of detection system vacuum.
4. refrigerator as claimed in claim 3 is characterized in that, the checkout gear of described detection system vacuum is the vacuum pressure sensor that is arranged on the vacuum crisper.
5. refrigerator as claimed in claim 3 is characterized in that, the checkout gear of described detection system vacuum is the vacuum pressure sensor that is arranged at the porch of vavuum pump.
6. refrigerator as claimed in claim 3 is characterized in that, described aerating device and air extractor are the check valves that is installed in respectively on the vacuum crisper.
7. refrigerator as claimed in claim 1 is characterized in that, described vacuum fresh-keeping system comprises two separate vacuum crispers, and the control device that extracts the pipeline break-make by described control can independently carry out vacuum drawn to arbitrary vacuum crisper.
8. refrigerator as claimed in claim 7 is characterized in that, described control device is one and is arranged on the ducted three-position four-way valve of extraction.
9. refrigerator as claimed in claim 8 is characterized in that this vacuum fresh-keeping system also comprises the checkout gear of detection system vacuum, for example is arranged on the vacuum crisper or the vacuum transducer of the porch of vavuum pump.
10. as claim 1 or 2 or 7 or 8 or 9 described refrigerators, it is characterized in that, described vacuum crisper is arranged in the refrigerating chamber of refrigerator, installs on the inwall of described refrigerating chamber and extracts pipeline to the joint that is connected, and the air extractor of this joint and vacuum crisper connects.
11., it is characterized in that the aerating device of described two vacuum crispers is separate as claim 7 or 8 or 9 described refrigerators.
12. as claim 1 or 2 or 7 or 8 or 9 described refrigerators, it is characterized in that, on the described vavuum pump noise absorber be set.
CNU200620071501XU 2006-05-19 2006-05-19 Electric refrigerator with vacuum freshness preserving system Expired - Lifetime CN2901196Y (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CNU200620071501XU CN2901196Y (en) 2006-05-19 2006-05-19 Electric refrigerator with vacuum freshness preserving system
EP07729194A EP2024695A1 (en) 2006-05-19 2007-05-16 Electric refrigerator comprising a vacuum-sealed system
PCT/EP2007/054746 WO2007135048A1 (en) 2006-05-19 2007-05-16 Electric refrigerator comprising a vacuum-sealed system
RU2008148161/21A RU2427768C2 (en) 2006-05-19 2007-05-16 Electric refrigerator with vacuum freshness preserving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU200620071501XU CN2901196Y (en) 2006-05-19 2006-05-19 Electric refrigerator with vacuum freshness preserving system

Publications (1)

Publication Number Publication Date
CN2901196Y true CN2901196Y (en) 2007-05-16

Family

ID=38085361

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU200620071501XU Expired - Lifetime CN2901196Y (en) 2006-05-19 2006-05-19 Electric refrigerator with vacuum freshness preserving system

Country Status (4)

Country Link
EP (1) EP2024695A1 (en)
CN (1) CN2901196Y (en)
RU (1) RU2427768C2 (en)
WO (1) WO2007135048A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000724A1 (en) * 2007-06-28 2008-12-31 BSH Bosch und Siemens Hausgeräte GmbH Vacuum sealing system with a control method
CN106642962A (en) * 2016-12-09 2017-05-10 青岛海尔股份有限公司 Refrigerating and freezing device and control method thereof
CN111508773A (en) * 2019-01-30 2020-08-07 宁波方太厨具有限公司 Door opening and closing electric control system and method for household negative-pressure fresh-keeping cavity
CN111829262A (en) * 2020-07-30 2020-10-27 宣昌黎 Vacuum air-conditioning fresh-keeping refrigerator
CN114061222A (en) * 2020-08-04 2022-02-18 海信容声(广东)冷柜有限公司 Refrigerator

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203231607U (en) * 2012-12-20 2013-10-09 博西华电器(江苏)有限公司 Refrigerator with vacuum system
CN103712408B (en) * 2013-12-31 2016-01-13 海信容声(广东)冰箱有限公司 A kind of vacuum fresh-keeping system and control method thereof
CN105506730B (en) * 2015-12-15 2019-02-12 上海汉虹精密机械有限公司 A kind of main vacuum line structure of single crystal growing furnace
CN106524645A (en) * 2016-12-02 2017-03-22 青岛海尔股份有限公司 Refrigerating and freezing device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB389535A (en) * 1931-12-19 1933-03-23 James Anstruther Hughes Bowman Improved heat-insulated storage chambers particularly for preserving foodstuffs
FR911026A (en) * 1944-06-19 1946-06-26 Perishable material preservation device
US2894845A (en) * 1955-04-18 1959-07-14 Gen Electric Methods of preserving fresh foods
DE3212753A1 (en) * 1982-04-06 1983-12-01 Heinz 8500 Nürnberg Rothberg Vacuum cabinet for preservation by atmospheric sterility
DE58905528D1 (en) * 1988-11-09 1993-10-14 Sm Vacuum Solich & Mayer Wien Process for storing biological substances, and device for carrying out this process.
JPH03175251A (en) * 1989-12-01 1991-07-30 Makoto Watanabe Electric refrigerator
DE19931920A1 (en) * 1999-07-08 2001-01-18 Alois Scheidter Container with inner chamber for refrigerator is sealed with door or flap to be airtight for preventing leakage from refrigerator inner chamber
US6090422A (en) * 1999-08-11 2000-07-18 Taragan; Arie Refrigerator with automatic vacuum compartment and method of preserving fresh food items using the same
US20020083724A1 (en) * 2000-12-28 2002-07-04 Tarlow Kenneth A. Food storage and preservation system
JP2004121156A (en) * 2002-10-04 2004-04-22 Shinagawa Kogyosho:Kk Vacuum cooling apparatus of food and method for carrying out cooling control of the same food
DE10248510A1 (en) * 2002-10-17 2004-04-29 BSH Bosch und Siemens Hausgeräte GmbH Refrigerator with an evacuable storage compartment
CN2624137Y (en) * 2003-05-14 2004-07-07 河南新飞电器有限公司 Vacuum fresh-keeping refrigerator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000724A1 (en) * 2007-06-28 2008-12-31 BSH Bosch und Siemens Hausgeräte GmbH Vacuum sealing system with a control method
RU2470239C2 (en) * 2007-06-28 2012-12-20 Бсх Бош Унд Сименс Хаусгерете Гмбх Vacuum storage system, and system control method
CN106642962A (en) * 2016-12-09 2017-05-10 青岛海尔股份有限公司 Refrigerating and freezing device and control method thereof
CN106642962B (en) * 2016-12-09 2018-12-14 青岛海尔股份有限公司 Refrigerating device and its control method
CN111508773A (en) * 2019-01-30 2020-08-07 宁波方太厨具有限公司 Door opening and closing electric control system and method for household negative-pressure fresh-keeping cavity
CN111508773B (en) * 2019-01-30 2021-08-20 宁波方太厨具有限公司 Door opening and closing electric control system and method for household negative-pressure fresh-keeping cavity
CN111829262A (en) * 2020-07-30 2020-10-27 宣昌黎 Vacuum air-conditioning fresh-keeping refrigerator
CN114061222A (en) * 2020-08-04 2022-02-18 海信容声(广东)冷柜有限公司 Refrigerator

Also Published As

Publication number Publication date
RU2427768C2 (en) 2011-08-27
EP2024695A1 (en) 2009-02-18
WO2007135048A1 (en) 2007-11-29
RU2008148161A (en) 2010-06-27

Similar Documents

Publication Publication Date Title
CN2901196Y (en) Electric refrigerator with vacuum freshness preserving system
CN100582612C (en) Refrigerator with vacuum fresh-keeping system and controlling method thereof
CN102116553B (en) Refrigerator with temperature varying and/or vacuum preservation system and control method thereof
CN106705566B (en) Fresh-keeping control method and device for refrigerating and freezing equipment
CN201233145Y (en) Air-adjusting refrigerator by employing nitrogen making device by using pressure swing adsorption process
CN103017441B (en) Refrigerator with vacuumizing device and control method thereof
CN202175311U (en) Movable vacuum fresh-keeping box and vacuum fresh-keeping refrigerator
CN105806004A (en) Modified atmosphere fresh-keeping device, control method thereof and refrigerator comprising modified atmosphere fresh-keeping device
CN101774451A (en) Vacuum freshness preservation box and refrigerator with the same
CN101957119B (en) Electric refrigerator with vacuum refreshing system and vacuum refreshing box
CN101331970B (en) Vacuum preserving system and control method thereof
CN108895748A (en) A kind of high-efficiency vacuum refrigerator
CN1967110A (en) Long-term storage device and method for food in refrigerator
CN208744326U (en) A kind of anti-oxidant placement cabinet of cnc machining center
CN206511394U (en) A kind of food preservation unit
CN102954642A (en) Refrigerator
CN214710070U (en) Oxygen remover for air-conditioned cold store
CN2295971Y (en) Vacuum preserving box for electric refrigerator
CN211983569U (en) Air conditioning system
CN106642968A (en) Nitrogen production control method for refrigerating and freezing equipment and refrigerating and freezing equipment
CN114061216B (en) Refrigerator and vacuumizing control method thereof
CN202254583U (en) Air extracting device of vacuum fresh-keeping cabin of compact refrigerator
CN2356963Y (en) Vacuum food preserving box
CN204227807U (en) With the refrigerator air extraction structure of air pressure automatic control function
CN200953822Y (en) Vacuum sealed fresh-preservation cabinet

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Boxihua Household Electrical Appliances Co., Ltd.

Assignor: BSH Electrical Appliances (Jiangsu) Co., Ltd.

Contract fulfillment period: 2008.9.8 to 2013.9.30

Contract record no.: 2008320001109

Denomination of utility model: Refrigerator with vacuum fresh-keeping system and controlling method thereof

Granted publication date: 20070516

License type: Exclusive license

Record date: 20081128

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.8 TO 2013.9.30; CHANGE OF CONTRACT

Name of requester: BOXIHUA FAMILY ELECTRICAL APPLIANCES CO., LTD.

Effective date: 20081128

CX01 Expiry of patent term

Granted publication date: 20070516

EXPY Termination of patent right or utility model