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:
Dec. 08, 2020
Filed:
Mar. 13, 2017
Xiaoping Chen, Foshan, CN;
Foshan Viomi Electrical Technology Co., Ltd., Foshan, CN;
Xiaoping Chen, Foshan, CN;
Xiaoping Chen, Guangdong, CN;
Foshan Viomi Electrical Technology Co., Ltd., Guangdong, CN;
Abstract
An electric valve and a control method therefor are disclosed. The electric valve comprises a mechanical valve body, a motor (), a valve switch state detection apparatus, a control line () and a control circuit (). The motor and the mechanical valve body are in transmission connection; the control line is electrically connected to the control circuit; the control circuit comprises a drive module () and a power supply module (); and the motor, the valve switch state detection apparatus and the power supply module are respectively connected to the drive module. The control circuit further comprises a backup power supply () electrically connected thereto. Besides a power supply module which supplies power from the outside, the electric valve is additionally provided with a backup power supply; and after the power supply module has powered down, the backup power supply, in combination with a control circuit, can provide an operation power for the drive module and motor of the electric valve, thus automatically controlling the closing of the mechanical valve body.