Patent ID: 9608528
Date: 2017-03-28
CPC Classifications: H02M,H05K

Claim:
1. A DC-DC converter apparatus, comprising: a low-voltage side circuit board assembly: a transformer; a control circuit board assembly forming a control circuit for controlling a circuit connected to the transformer; a case housing the transformer and the control circuit board assembly; a metal frame placed in the case and placed between the transformer and the control circuit board assembly; and an elastic member interposed between the metal frame and the transformer, wherein: the transformer is pressed and fixed to a bottom portion side of the case by the elastic member interposed between the metal frame and the transformer, wherein the metal frame has a rectangular large area portion covering the low-voltage side circuit board assembly and the metal frame has a rectangular small area portion extended from the large area portion covering only the transformer, and wherein the metal frame has a heat-radiating abutting portion that is brought into contact with a busbar connected to a secondary winding of the transformer.