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. 31, 2020
Filed:
Mar. 30, 2016
Qingdao Haier Washing Machine Co., Ltd., Qingdao, Shandong, CN;
Shilong Hao, Qingdao, CN;
Chunxu Wang, Qingdao, CN;
Jingjing Zhang, Qingdao, CN;
Yimin Li, Qingdao, CN;
Yongxin Wang, Qingdao, CN;
Haitao Hu, Qingdao, CN;
Chunfeng Lao, Qingdao, CN;
QINGDAO HAIER WASHING MACHINE CO., LTD., Qingdao, Shandong, CN;
Abstract
A washing machine including: a first drainage pump arranged between a washing drum and a filter membrane assembly. The first drainage pump pumps water in the washing drum into the filter membrane assembly for filtration and ensures that a water level in a water inlet cavity of the filter membrane assembly is not higher than a lower edge of a sewage outlet, so as to prevent reduce of the amount of washing water due to drainage of excessive washing water/rinsing water. Since the first drainage pump is a low-lift water pump, water in the filter membrane assembly moves continuously during filtration, so as to scour pollutants on a surface of a filter membrane/membrane filament, reduce an accumulation degree of the pollutants, effectively prevent blockage and achieve low noise.