Title:
SYSTEM AND METHOD FOR BALANCING INTERNAL AND EXTERNAL AIR PRESSURE OF REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2023/060760
Kind Code:
A1
Abstract:
Provided are a system and method for balancing the internal and external air pressure of a refrigerator. The system comprises an air compartment (1), wherein mounting pieces (2) are fixedly connected to a surface of the air compartment (1) at equal intervals; screws (3) are inserted into surfaces of the mounting pieces (2) in a penetrating manner by means of bearings; an air output valve (4) is hinged to the top face of the air compartment (1), a flow guide pipeline (6) is sleeved on the top end of the air compartment (1), and a control chip (7) is mounted on the bottom face of the air compartment (1); an electric wire (8) is mounted on one side of the control chip (7); a fixing bracket (9) is fixedly connected to the bottom face of the air compartment (1); an electric motor (10) is mounted inside the fixing bracket (9); the control chip (7) is connected to the electric motor (10) by means of the electric wire (8); and an output end of the electric motor (10) is fixedly connected to a transmission rod (11). An intelligent air pressure balance means is provided, such that in a process where a user opens and closes a refrigerator door during use of a refrigerator, negative pressure in the refrigerator caused by cold air loss and sealed operation of the refrigerator is avoided, so as to avoid difficulties in opening the refrigerator door.
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Inventors:
HAI HUA (CN)
LI SHIYING (CN)
CHEN QINGXIAO (CN)
GE JIANWEI (CN)
LI SHIYING (CN)
CHEN QINGXIAO (CN)
GE JIANWEI (CN)
Application Number:
PCT/CN2021/139515
Publication Date:
April 20, 2023
Filing Date:
December 20, 2021
Export Citation:
Assignee:
ZHEJIANG XINGXING REFRIGERATION CO LTD (CN)
International Classes:
F25D23/02
Domestic Patent References:
| WO2020221636A1 | 2020-11-05 | |||
| WO2018121202A1 | 2018-07-05 |
Foreign References:
| CN113803931A | 2021-12-17 | |||
| JP2012247138A | 2012-12-13 | |||
| CN209310329U | 2019-08-27 | |||
| CN204254963U | 2015-04-08 | |||
| JP2001116433A | 2001-04-27 | |||
| JP2021135022A | 2021-09-13 | |||
| JP2002267345A | 2002-09-18 | |||
| KR19980053170A | 1998-09-25 | |||
| JP2014134348A | 2014-07-24 | |||
| CN208025934U | 2018-10-30 | |||
| CN106705544A | 2017-05-24 |
Attorney, Agent or Firm:
NANJING PRUIYISI INTELLECTUAL PROPERTY AGENCY OFFICE (GENERAL PARTNERSHIP) (CN)
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