Title:
CONTROL METHOD FOR AIR CONDITIONER AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2021/190121
Kind Code:
A1
Abstract:
An air conditioner and a control method for the air conditioner. The control method comprises: the air conditioner starts up; within a first configuration cycle, sample a first high voltage measurement value of an air discharge end of a compressor, and sample a first low voltage measurement value of an air return end of the compressor; calculate a first pressure ratio; within a second configuration cycle in succession to the first configuration cycle, sample a second high voltage measurement value of the air discharge end of the compressor, and sample a second low voltage measurement value of the air return end of the compressor; calculate a second pressure ratio; and determine a compressor frequency change speed according to the first pressure ratio and the second pressure ratio, and control operation of the compressor according to the compressor frequency change speed. By means of continuous monitoring for two cycles, whether the current working state of the compressor adapts to a system pressure ratio can be accurately determined, and the compressor frequency change speed in the next cycle is determined according to an adaption state, thereby ensuring that an air conditioner system can remain stable and safe even if there is no open valve.
Inventors:
XIONG CHANGYOU (CN)
SUN CHAO (CN)
LIU SHOUYU (CN)
LIU DESHUAI (CN)
YANG KUN (CN)
CAO ZHIGAO (CN)
SUN CHAO (CN)
LIU SHOUYU (CN)
LIU DESHUAI (CN)
YANG KUN (CN)
CAO ZHIGAO (CN)
Application Number:
PCT/CN2021/073902
Publication Date:
September 30, 2021
Filing Date:
January 27, 2021
Export Citation:
Assignee:
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F24F11/38
Foreign References:
| CN108954669A | 2018-12-07 | |||
| CN110360734A | 2019-10-22 | |||
| CN101484761A | 2009-07-15 | |||
| CN202126056U | 2012-01-25 | |||
| CN101614432A | 2009-12-30 | |||
| JP2019085905A | 2019-06-06 | |||
| JP2016183817A | 2016-10-20 |
Attorney, Agent or Firm:
QINGDAO LZ PATENT AND TRADEMARK OFFICE CO., LTD. (CN)
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