HEATING MEDIUM HEATING MODULE OF BINARY HEAT PUMP DEVICE

PROBLEM TO BE SOLVED: To provide a heating medium heating module of a binary heat pump device which prevents further temperature rise of a first refrigerant discharged from a compressor due to heat absorption by the first refrigerant from a drive part, which makes a temperature difference between the drive part and a second refrigerant large, and which can cool the drive part.SOLUTION: A heating medium heating module for binary heat pump device which is connected to a second refrigeration circuit in which a second refrigerant circulates includes: a first refrigeration circuit 100 in which a compressor 41, a condenser 42 for exchanging heat between a heating medium and a first refrigerant, first throttle means 43, and an evaporator 44 for exchanging heat between the first refrigerant and the second refrigerant are connected by a refrigerant pipeline 45 in an annular manner, and in which the first refrigerant circulates; a connection pipe passage 103 connected to the second refrigeration circuit via the evaporator; and a drive part 200a for driving the compressor. The connection pipe passage includes an evaporator outflow pipeline 63 in which the second refrigerant flowing out from the evaporator flows, and the drive part is thermally connected with the evaporator outflow pipeline.SELECTED DRAWING: Figure 2 【課題】駆動部から第１冷媒への吸熱による、圧縮機から吐出される第１冷媒の更なる温度上昇を防止し、駆動部と第２冷媒との温度差を大きくして、駆動部を冷却することができる二元ヒートポンプ装置の熱媒体加熱モジュールを提供する。【解決手段】第２冷媒が循環する第２冷凍回路に接続される二元ヒートポンプ装置の熱媒体加熱モジュールであって、圧縮機４１、熱媒体と第１冷媒とを熱交換する凝縮器４２、第１絞り手段４３、第１冷媒と第２冷媒とを熱交換する蒸発器４４を冷媒配管４５で環状に接続し、第１冷媒が循環する第１冷凍回路１００と、蒸発器を介して第２冷凍回路に接続される接続管路１０３と、圧縮機を駆動させる駆動部２００ａと、を備え、接続管路は、蒸発器から流出する第２冷媒が流れる蒸発器流出配管６３を備え、駆動部は、蒸発器流出配管と熱的に接続した。【選択図】図２