Title:
ADJUSTMENT AND CONTROL METHOD AND APPARATUS FOR ELECTRONIC EXPANSION VALVE, AND HEAT PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/127126
Kind Code:
A1
Abstract:
The present application relates to the technical field of electronic expansion valve adjustment and control, and relates to an adjustment and control method and apparatus for an electronic expansion valve, and a heat pump device. The present application comprises: according to a present voltage difference and a present current of a compressor, obtaining a present optimal opening degree fitting coefficient by means of a voltage difference and a current of the compressor in a preset standard working condition; according to the present optimal opening degree fitting coefficient, obtaining a present optimal opening degree by means of an optimal opening degree of an electronic expansion valve in the standard working condition; and adjusting the present opening degree of the electronic expansion valve according to the present optimal opening degree. The present application is beneficial to improving the stability of adjustment and control of electronic expansion valves, and shortening the time required for stabilization of refrigerant systems.
Inventors:
ZHANG ZHIPING (CN)
LUO ZHILIANG (CN)
ZHANG BING (CN)
ZHAO MINGZHI (CN)
LUO ZHILIANG (CN)
ZHANG BING (CN)
ZHAO MINGZHI (CN)
Application Number:
PCT/CN2021/109742
Publication Date:
June 23, 2022
Filing Date:
July 30, 2021
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F25B49/02
Domestic Patent References:
| WO2016046876A1 | 2016-03-31 |
Foreign References:
| CN112665246A | 2021-04-16 | |||
| CN104457072A | 2015-03-25 | |||
| CN111322801A | 2020-06-23 | |||
| CN105509387A | 2016-04-20 | |||
| CN105423667A | 2016-03-23 | |||
| EP3719418A1 | 2020-10-07 |
Other References:
ZHENG BIN, ET AL.: "Process Control for Falling-Film Screw Chiller", REFRIGERATION AND AIR-CONDITIONING, vol. 16, no. 7, 24 June 2016 (2016-06-24), XP055942875
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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