| 摘要 |
PURPOSE: A heat exchanger for a heat pump is provided to effectively prevent the frosting by transferring the heat produced from a heat source to a fin through a heat medium circulating along a circulation pipe. CONSTITUTION: A heat exchanger for a heat pump comprises fins and coils. The coils pass through the fins. In the coils, refrigerant circulates. Circulating pipes(7a,7b,9a,9b,11a,11b,13) forming a closed loop pass through the pins. Heat medium is filled in the circulating pipes. Contact heaters(15a,15b) for heating the heat medium at the surface of each circulating pipe are installed at any point of the circulating pipes. The heat medium comprises any one or combination selected from water, silicon oil, alcohol and ethylene glycol. |
