METHOD FOR CONTROLLING MULTI-SPLIT AIR CONDITIONING SYSTEM - QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD

Title:

METHOD FOR CONTROLLING MULTI-SPLIT AIR CONDITIONING SYSTEM

Document Type and Number:

WIPO Patent Application WO/2021/228020

Kind Code:

A1

Abstract:

A method for controlling a multi-split air conditioning system, comprising: acquiring an indoor environmental temperature (S101); calculating the difference between the indoor environmental temperature and a set temperature (S103); and selectively controlling the degree of opening of a first electronic expansion valve/a second electronic expansion valve according to the difference, and/or switching a working state of a first four-way valve/a second four-way valve (S105). By controlling the degree of opening of the first electronic expansion valve/the second electronic expansion valve and switching the working state of the first four-way valve/the second four-way valve, a first indoor heat exchanger and a second indoor heat exchanger can be in a same operating state or different operating states, output of the cooling capacity or the heating capacity of an indoor unit is adjusted, and thus the environmental temperature of an indoor space can be adjusted without halting a compressor.

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Inventors:

GAO QIANG (CN)
ZHANG MING (CN)
ZHANG XIAODI (CN)
WANG HAISHENG (CN)
SONG DEYUE (CN)
ZHOU MINGJIE (CN)
XU LEI (CN)
DIAO HONGFU (CN)
ZHANG DONG (CN)

Application Number:

PCT/CN2021/092654

Publication Date:

November 18, 2021

Filing Date:

May 10, 2021

Export Citation:

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Assignee:

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
HAIER SMART HOME CO LTD (CN)

International Classes:

F24F1/0003; F24F11/64; F24F11/65; F24F11/84; F25B13/00; F25B41/20; F25B49/02

Foreign References:

CN105588362A	2016-05-18
CN1609527A	2005-04-27
CN105987456A	2016-10-05
JPH08110117A	1996-04-30
JPH02223755A	1990-09-06
JP2006078026A	2006-03-23
CN109028413A	2018-12-18
CN105509362A	2016-04-20
CN112032912A	2020-12-04

Attorney, Agent or Firm:

HANRAY LAW FIRM (CN)

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