Title:
METHOD AND DEVICE FOR ADJUSTING INITIAL OPENING DEGREE OF ELECTRONIC EXPANSION VALVE, AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2020/038113
Kind Code:
A1
Abstract:
The present invention provides a method and a device for adjusting an initial opening degree of an electronic expansion valve, and an air conditioner. Said method comprises: acquiring an initial opening degree of an electronic expansion valve when an air conditioner is powered on to operate, operation parameters when the air conditioner operates stably, and a stable opening degree of the electronic expansion valve when the air conditioner operates stably; determining a refrigerant filling level of the air conditioner according to the operation parameters; and obtaining, according to the refrigerant filling level and the stable opening degree, an initial opening degree adjustment value, so that the initial opening degree of the electronic expansion valve for the next startup is the initial opening degree adjustment value. The present application adjusts the initial opening degree according to the refrigerant filling level of the air conditioner, and the stable opening degree of the electronic expansion valve when the air conditioner operates stably, achieving the adaptation of the initial opening degree of the electronic expansion valve to the refrigerant filling amount; the initial opening degree no longer being a fixed value avoids the occurrence of liquid return caused by an excessively large initial opening degree of the electronic expansion valve when too much refrigerant is filled in, increasing the reliability of the air conditioner.
Inventors:
REN XIAOHUI (CN)
LIU HEXIN (CN)
HUANG CHUN (CN)
LIU HEXIN (CN)
HUANG CHUN (CN)
Application Number:
PCT/CN2019/093741
Publication Date:
February 27, 2020
Filing Date:
June 28, 2019
Export Citation:
Assignee:
NINGBO AUX ELECTRIC CO LTD (CN)
AUX AIR CONDITIONING LTD BY SHARE LTD (CN)
AUX AIR CONDITIONING LTD BY SHARE LTD (CN)
International Classes:
F24F11/84; F24F11/64; F24F11/89; F25B41/34
Foreign References:
| CN109084445A | 2018-12-25 | |||
| CN105783193A | 2016-07-20 | |||
| CN104676996A | 2015-06-03 | |||
| CN106322870A | 2017-01-11 | |||
| JP2018017479A | 2018-02-01 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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