Patent ID: 8836459

Claim:
A power module, comprising: a metal housing comprising a metal case and a metal cover plate covering said metal case, said metal case defining an accommodation chamber therein and a bottom opening in communication between said accommodation chamber and the surrounding, said metal cover plate being affixed to said metal case to cover said bottom opening and defining with said metal case, a plurality of insertion slots at two opposite sides of said bottom opening; a transformer module accommodated in said accommodation chamber inside said metal housing, said transformer module comprising a base member, said base member comprising a center opening, an iron core holder block connected between two opposite side walls of said center opening and suspending in said center opening, a winding groove extending around the periphery of said iron core holder block, two connection blocks disposed at two opposite sides thereof, an insertion slot defined in each said connection block, a plurality of metal conducting terminals arranged in two sets and respectively mounted in said two connection blocks of said base member and along the respective said insertion slots, each said metal conducting terminal comprising a vertical contact end vertically upwardly protruded over a top side of said connection block and a horizontal mating end horizontally outwardly extended out of said connection block and one said insertion slot of said metal housing, a winding mounted in said winding groove around said iron core holder block of said base member, said winding comprising two opposing connection terminals respectively suspending above said insertion slots of said base member, two iron cores respectively attached to opposing top and bottom sides of said iron core holder block of said base member, and two circuit boards respectively inserted into said insertion slots of said base member and electrically coupled with said two opposing connection terminals of said winding, each said circuit board comprising a plurality of metal contacts respectively kept in positive contact with the vertical contact ends of the metal conducting terminals in the associating said connection block of said base member; and a thermo-conductive insulating glue filled in said accommodation chamber of said metal case to package said transformer module.