EP 4215847 A1 20230726 - HEAT PUMP SYSTEM AND CONTROL METHOD THEREOF
Title (en)
HEAT PUMP SYSTEM AND CONTROL METHOD THEREOF
Title (de)
WÄRMEPUMPENSYSTEM UND STEUERUNGSVERFAHREN DAFÜR
Title (fr)
SYSTÈME DE POMPE À CHALEUR ET SON PROCÉDÉ DE COMMANDE
Publication
Application
Priority
CN 202210079670 A 20220124
Abstract (en)
The present invention provides a heat pump system (100) and a control method thereof. The heat pump system (100) comprises: a compressor (110); an indoor heat exchanger (120); an outdoor heat exchanger (130) configured as an interlaced heat exchanger having at least two refrigerant flow paths (130a, 130b); a plurality of throttling elements (141, 142, 143); and a first type four-way valve (151) and a second type four-way valve (152); wherein, in a local defrosting mode, refrigerant flows sequentially from the exhaust port (110b) of the compressor (110) through at least one of the at least two refrigerant flow paths (130a, 130b) of the outdoor heat exchanger (130), the throttling element (141, 142), at least another of the at least two refrigerant flow paths (130a, 130b) of the outdoor heat exchanger (130) and the suction port (110a) of the compressor (110). According to the heat pump system (100) and the control method thereof of the present invention, pointing defrosting operations can be performed on some heat exchangers with more severe frosting in outdoor units, which improves the indoor heating comfort during defrosting.
IPC 8 full level
F25B 47/02 (2006.01); F25B 13/00 (2006.01); F25B 39/00 (2006.01); F28D 1/02 (2006.01); F28D 1/04 (2006.01); F28D 1/047 (2006.01)
CPC (source: CN EP US)
F24F 5/001 (2013.01 - CN); F24F 11/42 (2017.12 - CN); F24F 11/65 (2017.12 - CN); F24F 11/67 (2017.12 - CN); F25B 13/00 (2013.01 - EP US); F25B 30/02 (2013.01 - CN); F25B 39/00 (2013.01 - EP); F25B 41/20 (2021.01 - CN US); F25B 41/30 (2021.01 - CN); F25B 47/02 (2013.01 - CN); F25B 47/022 (2013.01 - EP); F25B 47/025 (2013.01 - EP); F25B 49/02 (2013.01 - CN); F25D 21/004 (2013.01 - US); F28D 1/024 (2013.01 - EP); F28D 1/0408 (2013.01 - EP); F28D 1/0477 (2013.01 - EP); F25B 2313/02742 (2013.01 - EP); F25B 2600/2515 (2013.01 - US)
Citation (search report)
- [XI] CN 213841110 U 20210730 - QINGDAO HISENSE HITACHI AIR CONDITIONING SYSTEM CO LTD
- [A] EP 2884205 A1 20150617 - DAIKIN IND LTD [JP], et al
- [A] WO 2018208539 A1 20181115 - CARRIER CORP [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4215847 A1 20230726; CN 116518476 A 20230801; US 2023235943 A1 20230727
DOCDB simple family (application)
EP 23153139 A 20230124; CN 202210079670 A 20220124; US 202318158568 A 20230124