公开(公告)号：US20050275500A1

公开(公告)日：2005-12-15

申请号：US10866224

申请日：2004-06-10

申请人： Douglas Dietz ,  Louis Moe ,  Leah Valmidiano ,  Mark Franklin ,  Tony Chiang ,  Dominic Nuccitelli

发明人： Douglas Dietz ,  Louis Moe ,  Leah Valmidiano ,  Mark Franklin ,  Tony Chiang ,  Dominic Nuccitelli

IPC分类号： F25D19/00 ,  F28F13/00 ,  H01H37/00

CPC分类号： F28F13/00 ,  F25D19/006 ,  F28F2013/008

摘要： A thermal switch selectively couples a heat source to a pair of heat sinks. The thermal switch includes a shunt that is thermally coupled to the heat source. The shunt has a pair of posts. End portions of the posts are at least partially radially surrounded by respective cups. The cups in turn are thermally coupled to respective of the heat sinks. The cups are made of a material with a larger coefficient of thermal expansion than the material of the posts. Activation of one of the heat sinks causes the cup corresponding to that heat sink to contract, bringing it into contact with the corresponding post of the shunt. This opens a heat path through the switch from the heat source to the activated heat sink. Thermal isolation of the second cup is facilitated by an axial isolator of high thermal impedance, facilitating isolation of the inactive heat sink.

摘要翻译： 热开关选择性地将热源连接到一对散热器。 热开关包括热耦合到热源的分流器。 分流器有一对柱子。 柱的端部至少部分地由相应的杯径向包围。 杯依次热耦合到相应的散热器。 杯子由具有比柱的材料更大的热膨胀系数的材料制成。 激活其中一个散热器使得与该散热器对应的杯子收缩，使其与相应的分流器柱接触。 这将打开通过开关从热源到激活的散热器的热路径。 通过具有高热阻抗的轴向隔离器促进第二杯的热隔离，便于非活性散热器的隔离。