Control apparatus especially a surface mounted power element has power component in a housing with both upper and lower heat dissipating surfaces

摘要

A control apparatus comprises a circuit board (7) on a heat-dissipating section (10) of a housing base (1) and at least one power element (4) having a lower heat-dissipating surface (50) mounted on the board. The housing cover (2) thermally contacts a face of the element above the board through a heat-conductive section (20).