Title:
REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2021/114961
Kind Code:
A1
Abstract:
A refrigerator (1), which comprises a low-pressure storage unit (15), a pressure detection unit (9) and an air extraction device, wherein the pressure detection unit (9) comprises an upright post (91), which is formed on the low-pressure storage unit (15) and is provided with a first through hole (91a) in communication with the low-pressure storage unit (15); an end portion of the upright post (91) is provided with a rubber sealing member (92) for sealing the first through hole (91a), and a pressure switch (93) abutting against the rubber sealing member (92); and the first through hole (91a) is internally provided with a spring (94), one end of which spring is fixed to the low-pressure storage unit (15), and the other end of which spring is connected to a floating block (95) abutting against the rubber sealing member (92). The pressure detection unit (9) and the low-pressure storage unit (15) are integrated, such that the detection accuracy of the pressure detection unit (9) is improved; and the pressure detection unit (9) monitors the pressure in the low-pressure storage unit (15) in real time, and when the pressure in the low-pressure storage unit (15) is higher than a preset value and the vacuum refrigeration function is lost, an evacuation signal is sent to the air extraction device in a timely manner, and the air extraction device works to ensure the vacuum degree of the low-pressure storage unit (15), such that the food preservation effect is ensured.
Inventors:
ZHANG QIUJU (CN)
XU JINCHAO (CN)
ZHANG SHUDONG (CN)
SHEN NAIYU (CN)
XU JINCHAO (CN)
ZHANG SHUDONG (CN)
SHEN NAIYU (CN)
Application Number:
PCT/CN2020/126298
Publication Date:
June 17, 2021
Filing Date:
November 03, 2020
Export Citation:
Assignee:
HISENSE SHANDONG REFRIGERATOR CO LTD (CN)
International Classes:
F25D11/02; F25D17/04; F25D23/12; F25D29/00
Foreign References:
| CN211204585U | 2020-08-07 | |||
| KR20150047363A | 2015-05-04 | |||
| CN207572311U | 2018-07-03 | |||
| CN101948029A | 2011-01-19 | |||
| CN203413916U | 2014-01-29 | |||
| CN103644699A | 2014-03-19 | |||
| CN204242944U | 2015-04-01 | |||
| JP2005351580A | 2005-12-22 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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