To suppress mutual interference in driving states of objects to be controlled to improve comfort of a user.SOLUTION: A vehicular air conditioner is provided with a refrigerant circuit including a compressor, an indoor heat exchange part and an external heat exchange part, and a control device that controls the refrigerant circuit. The refrigerant circuit has a hot gas bypass that decompresses at least some of refrigerants compressed by the compressor and returns the refrigerants to the compressor, without going through the indoor heat exchange part and the external heat exchange part, and a flow volume adjusting part that adjusts flow volumes of the refrigerants flowing through the hot gas bypass. The control device can execute a hot gas heating mode in which some of the refrigerants compressed by the compressor are flown to the indoor heat exchange part and the remainder is flown to the hot gas bypass. In the hot gas heating mode, when pressure of the refrigerant at a high pressure-side in the refrigerant circuit becomes equal to a predetermined threshold or lower, control of either or both of an air blower that blows air to the indoor heat exchange part and the flow volume adjusting part is restricted.SELECTED DRAWING: Figure 1
【課題】各制御対象の駆動状態の相互干渉を抑制し、ユーザの快適性を向上させる。【解決手段】圧縮機、室内熱交換部、及び、外部熱交換部を含む冷媒回路と、前記冷媒回路を制御する制御装置と、を備えた車両用空調装置において、冷媒回路は、圧縮機で圧縮した冷媒の少なくとも一部を、室内熱交換部及び外部熱交換部を経由することなく減圧して圧縮機に戻すホットガスバイパスと、ホットガスバイパスを流れる冷媒の流量を調整する流量調整部と、を有し、制御装置は、圧縮機で圧縮した冷媒の一部を室内熱交換部に流し、残りをホットガスバイパスに流すホットガス暖房モードを実行可能であり、ホットガス暖房モードにおいて、冷媒回路の高圧側冷媒圧力が所定の閾値以下となる場合に、室内熱交換部に空気を送風する送風機及び流量調整部の何れか一方又は両方に対する制御を制限する、車両用空調装置を提供する。【選択図】図1
VEHICULAR AIR CONDITIONER
車両用空調装置
2025-01-08
Patent
Electronic Resource
Japanese
IPC: | F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / 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 |
VEHICULAR AIR CONDITIONER AND VEHICLE HAVING VEHICULAR AIR CONDITIONER
European Patent Office | 2019
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