To provide a heat exchanger capable of preventing a coolant containing an oil from being stagnated in a liquid reservoir part of a liquid receiver in a heating mode in which a temperature control target fluid is heated, and a valve device.SOLUTION: An outdoor heat exchanger 16 is applied to a heat pump cycle switchable between a cooling mode and a heating mode by switching a circulation route of a coolant containing an oil. The outdoor heat exchanger 16 includes: a core part 17 which condenses the coolant in the cooling mode and evaporates the coolant in the heating mode; a liquid receiver in which the coolant flowing out of the core part 17 is temporarily stored; and a valve device 30 which is accommodated inside of the liquid receiver and switches the circulation route of the coolant within the cycle. In the valve device 30, a suction-side channel 306 is provided for guiding the coolant in a liquid reservoir part 184 of the liquid receiver to a coolant suction side of a compressor in the heating mode. The suction-side channel 306 then communicates to a lower-side portion 184c closer to the side of a lower end 184b in the liquid reservoir part 184.SELECTED DRAWING: Figure 2
【課題】温調対象流体を加熱する加熱モード時に受液器の液溜め部にオイルを含む冷媒が滞留してしまうことを抑制可能な熱交換器、および弁装置を提供する。【解決手段】室外熱交換器16は、オイルを含む冷媒の循環経路を切り替えることで冷却モードと加熱モードとを切替可能なヒートポンプサイクルに適用される。室外熱交換器16は、冷却モード時に冷媒を凝縮させ、加熱モード時に冷媒を蒸発させるコア部17、コア部17から流出した冷媒を一時的に貯留する受液器、受液器の内側に収容されてサイクル内の冷媒の循環経路を切り替える弁装置30を含んでいる。弁装置30には、加熱モード時に受液器の液溜め部184の冷媒を圧縮機の冷媒吸入側に導く吸入側流路306が設けられている。そして、吸入側流路306は、液溜め部184のうち下端部184b側に近い下方側部位184cに連通している。【選択図】図2
HEAT EXCHANGER, AND VALVE DEVICE
熱交換器、弁装置
2019-02-21
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 |
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