To provide a vehicular air-conditioning system and a vehicular air-conditioning method which can improve heating performance while recovering exhaust heat from an on-vehicle instrument.SOLUTION: A vehicular air-conditioning system comprises: a refrigerant circuit; heat medium circuits including a high-temperature medium circuit and a low-temperature medium circuit; a vehicle internal side heat exchanger that exchanges heat between a heat medium and air; a vehicle external side heat exchanger that exchanges heat between the heat medium and outer air; an exhaust heat recovering circuit; and a switching part, which further comprises as operation modes: an exhaust heat recovering/heating mode in which the heat medium having exhaust heat recovered therefrom and then radiated into a refrigerant is supplied to the vehicle external side heat exchanger, while supplying a heat medium in the high-temperature medium circuit to the vehicle internal side heat exchanger and recovering the exhaust heat from an on-vehicle instrument into a heat medium in the low-temperature medium circuit; and an exhaust heat main heat source heating mode in which the heat medium having the exhaust heat recovered therefrom and then radiated into the refrigerant is detoured from the vehicle external side heat exchanger, while supplying the heat medium in the high-temperature medium circuit to the vehicle internal side heat exchanger and recovering the exhaust heat from the on-vehicle instrument into the heat medium in the low-temperature medium circuit.SELECTED DRAWING: Figure 4
【課題】車載機器からの排熱を回収しつつ暖房性能を向上させることが可能な車両用空調システムおよび車両用空調方法を提供すること。【解決手段】車両用の空調システムは、冷媒回路と、高温媒体回路および低温媒体回路を含む熱媒体回路と、熱媒体と空気とを熱交換させる車内側熱交換器と、熱媒体と外気とを熱交換させる車外側熱交換器と、排熱回収回路と、切替部とを備える。運転モードとして、車内側熱交換器に高温媒体回路の熱媒体を供給するとともに、低温媒体回路の熱媒体に車載機器からの排熱を回収しつつ、排熱を回収し冷媒へと放熱した熱媒体を車外側熱交換器に供給する排熱回収暖房モードと、車内側熱交換器に高温媒体回路の熱媒体を供給するとともに、低温媒体回路の熱媒体に車載機器からの排熱を回収しつつ、排熱を回収し冷媒へと放熱した熱媒体を車外側熱交換器から迂回させる排熱主熱源暖房モードと、を備える。【選択図】図4
VEHICULAR AIRCONDITIONING SYSTEM AND VEHICULAR AIRCONDITIONING METHOD
車両用空調システムおよび車両用空調方法
2023-02-22
Patent
Electronic Resource
Japanese
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 |
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