Title:
REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2021/208430
Kind Code:
A1
Abstract:
Provided is a refrigerator comprising a low-temperature storage compartment, a low-pressure storage unit positioned inside the low-temperature storage compartment, a vacuum pump, and an air leak prevention unit. The air leak prevention unit comprises: a vertical column having a first through hole in communication with the vacuum pump; an end cover sealing an end portion of the vertical column away from the vacuum pump and having a ventilation hole in communication with the low-pressure storage unit and the first through hole; a spring provided inside the first through hole, one end thereof close to the vacuum pump being fixed to the vertical column; and a suspension member having one end connected to the spring and the other end cooperating with the end cover to open or close the ventilation hole. A suspension column can perform reciprocating movement along the first through hole under the action of the spring and an air pressure so as to open or close the ventilation hole.
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Inventors:
YANG CHUN (CN)
Application Number:
PCT/CN2020/129907
Publication Date:
October 21, 2021
Filing Date:
November 18, 2020
Export Citation:
Assignee:
HISENSE SHANDONG REFRIGERATOR CO LTD (CN)
International Classes:
F25D11/00; F16K15/12
Foreign References:
| CN206269461U | 2017-06-20 | |||
| CN201028926Y | 2008-02-27 | |||
| CN103104436A | 2013-05-15 | |||
| CN105378284A | 2016-03-02 | |||
| CN108895748A | 2018-11-27 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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