To reduce heat shock on a heat absorption unit and a heat dissipation unit occurring when defrosting the heat absorption unit.SOLUTION: A refrigeration cycle device comprises: heat absorption units 17 and 32 absorbing heat by vaporizing a decompressed cooling medium; heat utilization unit 22 utilizing heat of a heating medium heated by a heat dissipation unit 12; heat supply units 20c and 23 which are arranged in parallel to the heat utilization unit 22 in a flow of the heating medium and supply heat of the heating medium heated by the heat dissipation unit 12, to the heat absorption unit 32; a branching portion 20d branching the heating medium flown out from the heat dissipation unit 12, into a heat utilization unit 22 side and a heat supply unit 20c, 23 side; a confluent portion 20e causing the heating medium having flown in the heat utilization unit 22 and the heating medium having flown in the heat supply units 20c, 23 and 37, to be confluent and flow out to the heat dissipation unit 12 side; and a switching unit 26 switching a state between a first state in which the heating medium circulates between the heat dissipation unit 12 and the heat utilization unit 22, and a second state in which the heating medium circulates between the heat dissipation unit 12, the heat utilization unit 22 and the heat supply units 20c and 23.SELECTED DRAWING: Figure 1
【課題】吸熱部を除霜するときの吸熱部および放熱部のヒートショックを軽減する。【解決手段】減圧された冷媒を蒸発させることによって吸熱させる吸熱部17、32と、放熱部12で加熱された熱媒体の熱を利用する熱利用部22と、熱媒体の流れにおいて熱利用部22に対して並列に配置され、放熱部12で加熱された熱媒体の熱を吸熱部32に供給する熱供給部20c、23と、放熱部12から流出した熱媒体を熱利用部22側と熱供給部20c、23側とに分岐させる分岐部20dと、熱利用部22を流れた熱媒体と熱供給部20c、23、37を流れた熱媒体とを合流させて放熱部12側へ流出させる合流部20eと、放熱部12と熱利用部22との間で熱媒体が循環する第1状態と、放熱部12と熱利用部22および熱供給部20c、23との間で熱媒体が循環する第2状態とを切り替える切替部26とを備える。【選択図】図1
REFRIGERATION CYCLE DEVICE
冷凍サイクル装置
2020-12-17
Patent
Elektronische Ressource
Japanisch
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |