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Patent Searching and Data


Title:
ELECTRIC VALVE AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/162065
Kind Code:
A1
Abstract:
An electric valve and a control method therefor. The electric valve comprises a mechanical valve body, a motor (1), a valve switch state detection apparatus, a control line (9) and a control circuit (80). 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 (2) and a power supply module (5); 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 (90) 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.

Inventors:
CHEN XIAOPING (CN)
Application Number:
PCT/CN2017/076448
Publication Date:
September 28, 2017
Filing Date:
March 13, 2017
Export Citation:
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Assignee:
FOSHAN VIOMI ELECTRICAL TECH CO LTD (CN)
CHEN XIAOPING (CN)
International Classes:
F16K31/04; F16K37/00
Foreign References:
CN103791140A2014-05-14
US7059338B12006-06-13
JP2001289343A2001-10-19
CN204756085U2015-11-11
CN105351558A2016-02-24
CN102052500A2011-05-11
CN104315245A2015-01-28
CN105626929A2016-06-01
Attorney, Agent or Firm:
FOSHAN MINGCHENG PATENT & TRADEMARK OFFICE (CN)
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