EP 1978315 A2 20081008 - Outdoor Unit for Multi-Air Conditioner
Title (en)
Outdoor Unit for Multi-Air Conditioner
Title (de)
Außeneinheit für eine Mehrzonenklimaanlage
Title (fr)
Unité extérieure pour climatiseur multiple
Publication
Application
Priority
KR 20070034425 A 20070406
Abstract (en)
An outdoor unit (10) applicable to not only a multi-air conditioner to perform heating and cooling operations simultaneously, but also a multi-air conditioner to perform a heating operation and a cooling operation separately. The outdoor unit (10) includes a compressor (11), an outdoor heat exchanger (12), first to third connecting valves (21-23) connected to pipes of a plurality of indoor units, respectively, a first 4-way valve (15) connected to a discharge side of the compressor for conversion of heating and cooling operations, a high-pressure gas pipe (26) to connect the first 4-way valve with the first connecting valve (21), a high-pressure liquid pipe (28) to connect the second connecting valve (22) with the outdoor heat exchanger (12), a first connecting pipe (24) to connect the outdoor heat exchanger (12) with the first 4-way valve (15), a second connecting pipe (25) to connect the first 4-way valve to a suction side of the compressor, and a low-pressure gas pipe (27) to guide a low-pressure gas refrigerant returned to the third connecting valve to the suction side of the compressor, and further includes a second 4-way valve (16) to convert a flow path so as to communicate the high-pressure gas pipe (26) with the third connecting valve (23) or to communicate the low-pressure gas pipe (27) with the third connecting valve (23).
IPC 8 full level
F25B 13/00 (2006.01); F25B 29/00 (2006.01)
CPC (source: EP KR)
F25B 13/00 (2013.01 - EP KR); F25B 2313/007 (2013.01 - EP KR); F25B 2313/023 (2013.01 - KR); F25B 2313/0231 (2013.01 - EP KR); F25B 2313/02742 (2013.01 - EP KR); F25B 2400/04 (2013.01 - EP KR)
Designated contracting state (EPC)
DE FR GB
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1978315 A2 20081008; EP 1978315 A3 20141231; CN 100587351 C 20100203; CN 101280949 A 20081008; KR 100791930 B1 20080104
DOCDB simple family (application)
EP 07120875 A 20071116; CN 200710186493 A 20071122; KR 20070034425 A 20070406