CONTROL SYSTEM AND METHOD FOR ELECTRONIC EXPANSION VALVE

WIPO Patent Application WO/2022/062128

A1

A control system and method for an electronic expansion valve. An electronic expansion valve (10) comprises a valve component (11) and a motor (13, 110, 210, 310, 410). The valve component (11) comprises a valve body (11a) and a valve core (11b) that can move with respect to the valve body (11a); the motor (13, 110, 210, 310, 410) is configured to be capable of making the valve core (11b) move so as to turn on or off the electronic expansion valve (10). The control system comprises a power supply device (120, 220, 320, 420), the power supply device (120, 220, 320, 420) being configured to supply power for the motor (13, 110, 210, 310, 410); and a control device (130, 230, 330, 430). The modes in which the control device (130, 230, 330, 430) drives the motor (13, 110, 210, 310, 410) comprise a first mode and a second mode, wherein current required for driving the motor (13, 110, 210, 310, 410) in the first mode is less than current required for driving the motor (13, 110, 210, 310, 410) in the second mode. The control device (130, 230, 330, 430) is configured to selectively drive the motor (13, 110, 210, 310, 410) in the first mode or the second mode according to a preset motor driving association parameter when the electronic expansion valve (10) is started.

YAN BING (CN)
FAN CHUNLI (CN)
HE JIFU (CN)

PCT/CN2020/128912

March 31, 2022

November 16, 2020

Click for automatic bibliography generation  

EMERSON CLIMATE TECH SUZHOU CO LTD (CN)

F16K31/04; F16K1/00; F16K31/02

CN111365509A	2020-07-03
CN103968132A	2014-08-06
CN101989077A	2011-03-23
CN110260462A	2019-09-20
CN204493833U	2015-07-22
JP2001324043A	2001-11-22
EP3672030A1	2020-06-24

UNITALEN ATTORNEYS AT LAW (CN)

View/Download PDF      PDF Help

Previous Patent: ANTENNA SYSTEM AND COMMUNICATION TERMINAL

Next Patent: MULTI-PASS RADIAL REACTOR