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:
Sep. 23, 2025
Filed:
Oct. 14, 2021
Qingdao Haier Laundry Electric Appliances Co., Ltd, Shandong, CN;
Haier Smart Home Co., Ltd., Shandong, CN;
QINGDAO HAIER LAUNDRY ELECTRIC APPLIANCES CO., LTD, Qingdao, CN;
HAIER SMART HOME CO., LTD., Qingdao, CN;
Abstract
A ventilation control method for a laundry device including: acquiring a present current of an air inflow fan when it is started; determining whether a water seal is formed by water in a water inflow pipe based on the present current, where when the present current reaches a preset current value, it indicates that the water seal is formed by water in the pipe, and when the present current does not reach the preset current value, it indicates that the water seal is not formed; if the preset current value is reached, releasing the water seal by injecting water into the pipe to allow the water level to rise until the siphoning height is reached to trigger the siphon device to discharge the water in the pipe, and then ventilating the drum assembly; and if the preset current value is not reached, directly ventilating the drum assembly.