THERMALLY CONTROLLED ACTIVE HEAT SWITCH SYSTEM

摘要

A heat transfer changeover switch capable of effecting or cutting off positively heat transfer, requiring no contact or separation of a solid contact of a switch piece, easily being incorporated in a fine electronic device and generating no heat or vibration during a switch operation, wherein a heat pipe having a pipe for storing a beating medium therein is disposed between a hot heat source and a cold heat source and a heating medium supplying/discharging device for supplying/discharging the heating medium to and from the pipe is provided, whereby heat transfer between the hot heat source and the cold heat source via the heat pipe is effected or cut off by using the heating medium supplying/discharging device that changes over between supply and discharge of the heating medium to and from the pipe.