TRANSFORMER FOR POWER CONVERSION, ON-VEHICLE POWER CONVERTER INCLUDING TRANSFORMER FOR POWER CONVERSION, AND METHOD OF MANUFACTURING TRANSFORMER FOR POWER CONVERSION

摘要

PROBLEM TO BE SOLVED: To provide a small and low profile transformer for power conversion having a small number of component while maintaining insulation.;SOLUTION: A transformer for power conversion includes a transformer winding formed integrally by superposing primary windings 210, 220 and secondary windings 240, 260 while providing a gap in the winding axis direction, and then filling the gap with an insulating resin 290 material, and transformer cores 300a, 300b fitted to the transformer winding and constituting a magnetic circuit. In a region where the transformer winding and transformer cores 300a, 300b overlap, when viewing from the winding axis direction, the primary windings 210, 220 are covered with the resin 290 material and not exposed to the outside, and the secondary windings 240, 260 are not covered with the resin 290 material but the metal surface is exposed to the outside.;SELECTED DRAWING: Figure 5A;COPYRIGHT: (C)2016,JPO&INPIT