HEAT RADIATION STRUCTURE FOR TRANSFORMER OF DC/DC CONVERTER

摘要

A transformer heat radiation structure of a DC/DC converter is provided to reduce a manufacturing cost and increase an output density per a unit volume of the DC/DC converter. A transformer heat radiation structure of a DC/DC converter includes a core(110), a heat sink(200), and an aluminum heat radiation member(130a). A low voltage coil and a high voltage coil are wound around the core. The heat sink of a housing is contacted with a side of the core. The aluminum heat radiation member is contacted with an opposite side to the core. A heat generated from the core is radiated through the aluminum heat radiation member. An insulation material is attached to the low voltage side and the high voltage side coupled to an external part from the core. A cap pad for transferring a heat is installed on the coil having the insulation material. The aluminum heat radiation member is installed to contact with a rear plane of the cap pad. The heat generated from the coil of the low voltage side and the high voltage side is transferred to the aluminum heat radiation unit through the insulation material and the cap pad.