Patent ID: 7120030

Claim:
A housing structure of vehicle-mounted electronic equipment comprising: a connector housing into which a large number of contact pins are press-fitted and a counter-connector is inserted; a cover in which a canopy pan and an annular circumferential wall part are integrally formed by a fire retardant resin filled with glass filler; an electronic substrate temporarily fixed onto an inner wall of said annular circumferential wall part, and to which said contact pins are connected; and a highly conductive heat-transfer base that is disposed in contact with said electronic substrate so that a heat generated by the heating part mounted on said electronic substrate is transferred and dissipated, and which is provided with mounting lugs for mounting the base on a vehicle body; wherein said annular circumferential wall part is provided with an annular groove in which a sealant is inserted and plural screw holes located at the outside of said annular groove; said base is provided with an annular protrusion snapped into said annular groove and has plural through holes located at the outside of said annular protrusion; and by inserting fixing screws into said screw holes through said through holes, said electronic substrate is held between said annular circumferential wall part and said base.