The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2022
Filed:
Nov. 15, 2018
Qingdao Haier Co., Ltd., Qingdao, CN;
Lei Wang, Qingdao, CN;
Bo Jiang, Qingdao, CN;
Jianquan Chen, Qingdao, CN;
Chun Yang, Qingdao, CN;
Liyan Wang, Qingdao, CN;
QINGDAO HAIER CO., LTD., Qingdao, CN;
Abstract
Disclosed is an oxygen-control freshness preservation refrigerator, comprising a cabinet with a refrigerating compartment and a freezing compartment. A partition plate for separating the refrigerating compartment from the freezing compartment is arranged in the cabinet. The refrigerator further has a freshness preservation compartment arranged inside the refrigerating compartment and an oxygen control device for reducing the oxygen content inside the freshness preservation compartment, the oxygen control device comprises a gas-regulating membrane assembly and a gas extraction assembly. The gas-regulating membrane assembly has at least one gas-regulating membrane for selective gas permeation. The gas extraction assembly has a gas extraction pump arranged in the partition plate; and the gas extraction pump is provided with a gas intake pipe in communication with a gas discharge side of the gas-regulating membrane, and a gas discharge pipe for discharging gas from the gas discharge side of the gas-regulating membrane.