Patent ID: 8358506

Claim:
A mechanical arrangement for implementing a micro-inverter, the arrangement comprising: a circuitry assembly having: a transformer comprised of top and bottom abutting core halves; and a first compressive thermally-conductive pad situated along and in abutting thermal contact with a top surface of the top core half; a chopper device assembly having: a thermally conductive plate situated in abutting thermal contact with both a bottom surface of the bottom core half and with a plurality of chopper devices so as to conduct heat away from both the bottom core half and the chopper devices, the chopper devices being mechanically mounted to the conductive plate; and a second compressive thermally-conductive pad situated along and in abutting thermal contact with a bottom surface of the conductive plate; and a single enclosure, formed of top and base portions having corresponding first and second internal cavities, for housing both the circuitry and the chopper device assemblies; and wherein each of the first and second internal cavities has a corresponding predefined depth and the conductive plate has a predefined thickness such that, when the top and base portions of the enclosure are secured together to form the single enclosure containing the circuitry and chopper device assemblies, the first and second conductive pads contact and abut against opposing inner surfaces of respectively the enclosure top and base portions so as to passively conduct heat away from both the top core half and the chopper assembly to, respectively, the inner surfaces of the enclosure top and base portions, and the top and base portions of the enclosure collectively exert a sufficient mechanical force on abutting portions of the first and second core halves to drive the core halves together so as to substantially eliminate any air gap that would otherwise form there between.