COLD AIR SUPPLY DEVICE

To improve stability of operation of a supply air blower for blowing outdoor air into a chamber.SOLUTION: A cold air supply device 30 is provided in a heat pump comprising an evaporator for evaporating a refrigerant by exchanging heat between outdoor air and the refrigerant, and an outdoor unit fan 22 for supplying the outdoor air to the evaporator. The cold air supply device 30 comprises: an introduction duct 31 comprising an upper end opening 33 opened to the atmosphere, and a lower end opening 34 for introducing the outdoor air heat-exchanged by the evaporator; and a cold air duct 32 connected between the upper end opening 33 and the lower end opening 34 of the introduction duct 31, and for guiding the outdoor air in the introduction duct 31 to a utilization place.SELECTED DRAWING: Figure 2 【課題】チャンバ内に外気を送風する供給送風機の運転の安定性を向上させることを目的とする。【解決手段】冷風供給装置３０は、外気と冷媒とを熱交換させることで冷媒を蒸発させる蒸発器と、蒸発器へ外気を供給する室外機ファン２２と、を有するヒートポンプに設けられる。冷風供給装置３０は、大気に開口する上端開口３３と、蒸発器で熱交換した外気を導入する下端開口３４と、を有する導入ダクト３１と、導入ダクト３１の上端開口３３と下端開口３４との間に接続され、導入ダクト３１の外気を利用先へ導く冷風ダクト３２と、を備える。【選択図】図２