Floating heat sink power control device

Abstract

Power control device comprising: an electronic card to which power electronic components are soldered; a housing delimiting an internal housing capable of housing said electronic card, said housing comprising a wall having: an external surface capable of dissipating heat towards the outside of the housing, an internal surface; means for securing said card to said housing; a heat sink secured to said housing, said heat sink comprising at least a first contact surface intended to be thermally connected to said internal surface of said housing, and at least a second contact surface intended to bear against at least one contact surface of said power electronic components; said heat sink being mounted free in translation relative to said electronic card along the plane of said second surface of said heat sink. Fig. 1