Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2023/060882
Kind Code:
A1
Abstract:
The present invention relates to an air conditioner, which comprises: a compressor, having an air intake opening and an exhaust opening; an outdoor heat exchanger, having a first connecting pipe in communication with an upper portion or a top portion of the outdoor heat exchanger, and a second connecting pipe in communication with a lower portion or a bottom portion of the outdoor heat exchanger; a first four-way valve having a first port in communication with the air intake opening, a second port in communication with the exhaust opening, a third port that can be put in communication with an indoor heat exchanger of the air conditioner, and a fourth port; and a second four-way valve having a first port in communication with the fourth port of the first four-way valve, a second port in communication with the first connecting pipe, a third port in communication with the second connecting pipe, and a fourth port in communication with an outdoor expansion valve of the air conditioner. The first four-way valve and the second four-way valve are configured to be reversible when the air conditioner enters a defrost mode, such that the gaseous refrigerant discharged from the exhaust opening flows into the outdoor heat exchanger from the second connecting pipe. This air conditioner configuration can ensure that the frosted water on the upper part of the outdoor heat exchanger does not accumulate at the bottom. Therefore, defrosting time is shortened and defrosting is complete.
Inventors:
LIU ZHIMENG (CN)
ZHANG QIJUN (CN)
SONG LONG (CN)
ZHANG QIJUN (CN)
SONG LONG (CN)
Application Number:
PCT/CN2022/091416
Publication Date:
April 20, 2023
Filing Date:
May 07, 2022
Export Citation:
Assignee:
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD (CN)
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F24F3/00; F25B47/02
Foreign References:
| CN113932506A | 2022-01-14 | |||
| CN104990321A | 2015-10-21 | |||
| CN103644680A | 2014-03-19 | |||
| CN104089427A | 2014-10-08 | |||
| CN111322784A | 2020-06-23 | |||
| CN101403539A | 2009-04-08 |
Attorney, Agent or Firm:
HANRAY LAW FIRM (CN)
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