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Patent Searching and Data


Title:
AIR CONDITIONING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/012608
Kind Code:
A1
Abstract:
Provided is an air conditioning system, intended to solve the problems of the high cost, complicated structure, and inconvenient maintenance of existing air conditioning systems using a two-stage compressor or an air injection enthalpy-increasing compressor. The air conditioning system comprises an indoor heat exchanger (1), an outdoor heat exchanger (2), a compressor (3), a throttling device (4), a four-way valve (5) and an injection device (6), wherein the indoor heat exchanger (1), the outdoor heat exchanger (2), the compressor (3) and the throttling device (4) form a closed-loop refrigerant circulation loop; the four-way valve (5) is used for switching the air conditioning system between a refrigeration mode and a heating mode; and the injection device (6) is configured to be connected to an exhaust side of the compressor (3) when the air conditioning system executes the heating mode so as to improve the heating effect of the air conditioning system. The air conditioning system has reduced cost and a simple structure, and is convenient for checking, maintenance and replacement by maintenance personnel. The energy efficiency ratio of the air conditioning system is increased, such that the heating effect can be improved when the air conditioning system executes the heating mode.

Inventors:
MENG QINGLIANG (CN)
SONG QIANG (CN)
LIU JIANGBIN (CN)
LIU JINGSHENG (CN)
Application Number:
PCT/CN2019/128657
Publication Date:
January 28, 2021
Filing Date:
December 26, 2019
Export Citation:
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Assignee:
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F25B13/00; F25B7/00; F25B41/00
Foreign References:
CN105928265A2016-09-07
CN105972773A2016-09-28
CN106016809A2016-10-12
CN104976813A2015-10-14
CN203964434U2014-11-26
CN105805981A2016-07-27
JP2007101159A2007-04-19
Attorney, Agent or Firm:
HANRAY LAW FIRM (CN)
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