EP 3736514 A1 20201111 - REFRIGERATION CYCLE DEVICE AND LIQUID HEATING DEVICE HAVING THE SAME
Title (en)
REFRIGERATION CYCLE DEVICE AND LIQUID HEATING DEVICE HAVING THE SAME
Title (de)
KÄLTEKREISLAUFVORRICHTUNG UND FLÜSSIGKEITSHEIZVORRICHTUNG DAMIT
Title (fr)
DISPOSITIF À CYCLE DE RÉFRIGÉRATION ET DISPOSITIF DE CHAUFFAGE DE LIQUIDE LE COMPRENANT
Publication
Application
Priority
JP 2019089181 A 20190509
Abstract (en)
The present invention provides a refrigeration cycle device and a liquid heating device having the same including a heating operation mode for heating usage-side heat medium in a usage-side heat exchanger 22 by refrigerant discharged from a compression mechanism 21, and a defrosting operation mode for removing frost of a heat source-side heat exchanger 24 by the refrigerant discharged from the compression mechanism 21. In the heating operation mode which is executed after the defrosting operation mode is completed, at least for a predetermined period during execution of the heating operation mode, the control device 4 sets opening degrees of a first expansion device 23 and the second expansion device 31 to such values that a flow rate of refrigerant flowing through the first expansion device 23 becomes greater than a flow rate of refrigerant flowing through the second expansion device 31, and a blowing device 29 which supplies air to the heat source-side heat exchanger 24 is operated. According to this, even when the heating operation is executed in the usage-side heat exchanger after the defrosting operation of the heat source-side heat exchanger is completed, it is possible to suppress deterioration of heating ability in the usage-side heat exchanger.
IPC 8 full level
F25B 49/02 (2006.01); F25B 1/10 (2006.01); F25B 9/00 (2006.01); F25B 40/00 (2006.01); F25B 40/02 (2006.01); F25B 41/04 (2006.01); F25B 47/02 (2006.01)
CPC (source: CN EP US)
F25B 1/10 (2013.01 - EP); F25B 9/008 (2013.01 - EP); F25B 13/00 (2013.01 - CN); F25B 29/003 (2013.01 - CN); F25B 40/00 (2013.01 - EP); F25B 40/02 (2013.01 - EP); F25B 47/025 (2013.01 - CN EP); F25B 49/02 (2013.01 - CN EP US); F25B 2313/02741 (2013.01 - CN); F25B 2339/047 (2013.01 - EP); F25B 2400/13 (2013.01 - EP); F25B 2400/19 (2013.01 - CN); F25B 2600/23 (2013.01 - EP); F25B 2600/2509 (2013.01 - EP); F25B 2600/2513 (2013.01 - EP); F25B 2700/1931 (2013.01 - EP); F25B 2700/1933 (2013.01 - EP); F25B 2700/21151 (2013.01 - EP); F25B 2700/21152 (2013.01 - EP); F25B 2700/21172 (2013.01 - EP)
Citation (applicant)
JP 2009133581 A 20090618 - DAIKIN IND LTD
Citation (search report)
- [I] US 2016273816 A1 20160922 - HORIUCHI NAOTO [JP]
- [A] EP 2230474 A1 20100922 - DAIKIN IND LTD [JP]
- [A] WO 2018097154 A1 20180531 - DAIKIN IND LTD [JP]
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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3736514 A1 20201111; CN 111912140 A 20201110; CN 111912140 B 20231013; JP 2020183850 A 20201112
DOCDB simple family (application)
EP 20156001 A 20200207; CN 202010092131 A 20200214; JP 2019089181 A 20190509