Patent ID: 7277291
Filing Date: 2007-10-02
Classification: F28F,H01L,H05K

Abstract:
1. A thermal conducting device for removing heat from a power dissipating device, wherein the power dissipating device is installed within a case having an external panel that includes a substantially flat inner surface, the thermal conducting device comprising: a base configured to be thermally coupled to the power dissipating device, the base including a lower surface for disposing over the power dissipating device; a translational portion that is movable with respect to the base in a vertical dimension, the translational portion including a substantially flat upper surface for coupling to the inner surface of the external panel; a cavity provided in one of the base and the translating portion and a piston disposed on the other one of the base and the translating portion, wherein the cavity provides a guide surface that is substantially vertical and substantially straight in a vertical dimension, and the piston provides a guide surface complementary to the guide surface of the cavity, the guide surfaces cooperating to constrain movement of the translational portion generally to the vertical dimension, further wherein the one of the base or the translating portion that includes the cavity further includes a port defining a first end and a second end and a channel communicating therebetween, wherein the first end opens into the cavity and the second end opens adjacent an external surface of the base or the translating portion, the port allowing air to pass into and out of the cavity; and a biasing element for urging the translational portion upward into contact with the inner surface of the external panel, whereby the substantially flat upper surface of the translational portion and the substantially flat inner surface of the external panel are in contact, and wherein the substantially flat surfaces provide for movement of the surfaces relative to one another.