Patent ID: 8998454
Filing Date: 2015-04-07
Classification: F21K,F21S,F21V,H05K,Y10T

Abstract:
1. A flexible circuit assembly for accommodating a plurality of power electronic devices, comprising: an insulating cover layer having first openings, the first openings configured to receive the plurality of power electronic devices at least partially inside the first openings; a flexible conductive layer arranged under the insulating cover layer and attached with a first adhesive to the insulating cover layer, the flexible conductive layer having a plurality of islands and conductive traces, the first openings arranged above the islands; an intermediate insulating layer arranged under the flexible conductive layer and attached with a second adhesive to the flexible conductive layer, the intermediate insulating layer having second openings, the second openings arranged below the islands; a plurality of heat-conductive elements arranged inside the second openings; a first thin heat sink layer, the heat-conductive elements arranged to be in contact with an upper surface of the thin heat sink layer and the lower surface of the islands via heat-conductive material; and a second thin heat sink layer, upper surfaces of the power electronic devices arranged to be in contact with a lower surface of the thin heat sink layer and the lower surface of the islands via heat-conductive material, wherein the flexible circuit assembly is bendable to a bending radius of 3 cm without cracking the insulating cover layer, the flexible conductive layer, the intermediate insulating layer.