Title:
AIR CONDITIONING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/220581
Kind Code:
A1
Abstract:
Disclosed is an air conditioning system, comprising: a high-pressure pipe, a low-pressure pipe, an indoor heat exchanger (10), an outdoor heat exchanger (20), a leakage-free thermal expansion valve (30), and a variable capacity compressor (40). The high-pressure pipe and the low-pressure pipe can be connected in an on-off manner for allowing circulation of high and low pressure refrigerants. The leakage-free thermal expansion valve (30) is connected between the indoor heat exchanger (10) and the outdoor heat exchanger (20), the indoor heat exchanger (10) is onnected to one of the high pressure pipe and the low pressure pipe and the outdoor heat exchanger (20) is to c the other one thereof. The variable capacity compressor (40) comprises a housing (43), a first cylinder (44) and a second cylinder (45). The housing (43) is provided with an intake port and an exhaust port (433). The first cylinder (44) is provided with a first suction hole (441) communicating with the suction port, and a first exhaust hole (442) communicating with the exhaust port (433). The second cylinder (45) is provided with a second suction hole (451) communicating with the suction port, a second exhaust hole (452) communicating with the exhaust port (433), and a pressure relief hole (443) connected with the high-pressure pipe and the low-pressure pipe in an on-off manner. Before the variable capacity compressor (40) is started, the high-pressure pipe is communicated with the low-pressure pipe, and disconnected after a first preset time period.
Inventors:
YANG YUFEI (CN)
LIAO SIQING (CN)
OU YONGDONG (CN)
LIAO SIQING (CN)
OU YONGDONG (CN)
Application Number:
PCT/CN2019/109651
Publication Date:
November 05, 2020
Filing Date:
September 30, 2019
Export Citation:
Assignee:
GUANGDONG MEIZHI PREC MFG CO (CN)
International Classes:
F25B13/00; F24F11/00; F25B41/04
Domestic Patent References:
| WO2015194020A1 | 2015-12-23 |
Foreign References:
| CN107356006A | 2017-11-17 | |||
| CN107726661A | 2018-02-23 | |||
| CN207230987U | 2018-04-13 | |||
| CN207815765U | 2018-09-04 | |||
| CN208349616U | 2019-01-08 | |||
| CN101592388A | 2009-12-02 | |||
| CN1187583A | 1998-07-15 | |||
| CN104912795A | 2015-09-16 |
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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