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Title:
OUTDOOR UNIT, MULTI-SPLIT SYSTEM AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/179452
Kind Code:
A1
Abstract:
An outdoor unit (01), a multi-split system and a control method. The outdoor unit (01) is configured to connect to a plurality of indoor units (02, 02', 04) by means of a liquid pipe (201), a first gas pipe (202) and a second gas pipe (203) so as to form a multi-split system; the outdoor unit (01) comprises a compressor (1), an outdoor heat exchanger (2), a four-way valve (4), a first solenoid valve (5), and a second solenoid valve (6); a first end (A) of the four-way valve (4) is connected to an exhaust end of the compressor (1), a second end (B) of the four-way valve (4) is connected to one end of the outdoor heat exchanger (2), a third end (C) of the four-way valve (4) is connected to a suction end of the compressor (1), and a fourth end (D) of the four-way valve (4) is connected to the first gas pipe (202); the other end of the outdoor heat exchanger (2) is configured to connect to the liquid pipe (201); one end of the first solenoid valve (5) is connected to the first end (A) of the four-way valve (4), and the other end is connected to the second gas pipe (203); one end of the second solenoid valve (6) is connected to the third end (C) of the four-way valve (4), and the other end is connected to the second gas pipe (203).

Inventors:
LIU, Min (No. 218 Qianwangang Road, Economic And Technical Development ZoneQingdao, Shandong 5, 266555, CN)
LI, Yajun (No. 218 Qianwangang Road, Economic And Technical Development ZoneQingdao, Shandong 5, 266555, CN)
SONG, Xutong (No. 218 Qianwangang Road, Economic And Technical Development ZoneQingdao, Shandong 5, 266555, CN)
SUN, Long (No. 218 Qianwangang Road, Economic And Technical Development ZoneQingdao, Shandong 5, 266555, CN)
ZHU, Haibin (No. 218 Qianwangang Road, Economic And Technical Development ZoneQingdao, Shandong 5, 266555, CN)
HE, Mingshun (No. 218 Qianwangang Road, Economic And Technical Development ZoneQingdao, Shandong 5, 266555, CN)
Application Number:
CN2019/078807
Publication Date:
September 26, 2019
Filing Date:
March 20, 2019
Export Citation:
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Assignee:
QINGDAO HISENSE HITACHI AIR-CONDITIONING SYSTEMS CO., LTD. (No. 218 Qianwangang Road, Economic And Technical Development ZoneQingdao, Shandong 5, 266555, CN)
International Classes:
F24F1/06; F24F11/65; F24F11/84
Foreign References:
CN200979258Y2007-11-21
CN102878613A2013-01-16
CN203413735U2014-01-29
CN104296238A2015-01-21
JP3943104B22007-07-11
JPH11148681A1999-06-02
CN108895567A2018-11-27
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (8F Building 11, No. 31 Jiaoda East Road Haidian District, Beijing 4, 100044, CN)
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