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:
Jan. 10, 2023
Filed:
Dec. 12, 2018
Haier Smart Home Co., Ltd., Shandong, CN;
HAIER SMART HOME CO., LTD., Qingdao, CN;
Abstract
A refrigerating and freezing device, the refrigerating and freezing device including: a casing, including an inner container, a housing, and a heat preservation layer, wherein a storage space is disposed in the inner container, a storage container is disposed in the storage space, and the storage container has a controlled atmosphere fresh-keeping space therein; and a controlled atmosphere membrane component, configured to allow more oxygen gas in an airflow in a space around the controlled atmosphere membrane component than nitrogen gas in the airflow in the space around the controlled atmosphere membrane component to pass through a controlled atmosphere membrane to enter an oxygen gas-enriched collecting cavity. The storage space is composed of a top cover and a bottom box, a lower surface of the top cover is provided with a concave cavity, and the controlled atmosphere membrane component is disposed in the concave cavity.