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Title:
DEFROSTING CONTROL METHOD AND APPARATUS FOR AIR CONDITIONING SYSTEM, AND AIR CONDITIONING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/160767
Kind Code:
A1
Abstract:
A defrosting control method and apparatus for an air conditioning system, and the air conditioning system. The method comprises: when the air conditioning system runs in a heating mode, determining to trigger and enter a defrosting mode, wherein the heating mode comprises: a first refrigerant circulation loop delivering a refrigerant according to a heating refrigerant flow direction, and a second refrigerant circulation loop being in a blocking state; and controlling the second refrigerant circulation loop to be in an ON state, so that the air conditioner runs in the defrosting mode. According to the method, on the basis of a set of newly added refrigerant circulation loops, heat of the refrigerant is emitted to an ambient environment of a newly added outdoor heat exchanger by using the outdoor heat exchanger when the air conditioning system enters the defrosting mode, so that congealed frost can be heated and melted; and at the same time, an original refrigerant circulation loop of the air conditioning system can normally heat an indoor environment.

Inventors:
WANG YADONG (CN)
WANG RUOFENG (CN)
ZHANG MEIJIAO (CN)
Application Number:
PCT/CN2021/121636
Publication Date:
August 04, 2022
Filing Date:
September 29, 2021
Export Citation:
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Assignee:
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD (CN)
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F24F11/42; F25B47/02
Attorney, Agent or Firm:
QINGDAO ZHONGJIA STANDARD PATENT AGENCY CO., LTD (CN)
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