Patent ID: 6492890
Filing Date: 2002-12-10
Classification: H01F

Abstract:
A method of manufacturing a transformer, comprising:providing a bobbin assembly having an integral heat sink, and winding a wire about the bobbin assembly to form a coil of the transformer wherein: the integral heat sink is configured to lie within a winding of the coil, and to extend beyond an area occupied by the coil, to facilitate a heat transfer from the inner winding of the coil when the transformer is mounted in its intended operational configuration, the integral heat sink is configured as an â€œLâ€  shaped device having two orthogonal surfaces, the bobbin assembly includes a bobbin having a core surface, a first surface of the two orthogonal surfaces of the integral heat sink being adjacent the core surface of the bobbin, and a second surface of the two orthogonal surfaces of the integral heat sink being configured to be adjacent a heat-conducting surface when the transformer is mounted in its intended operational configuration.