Patent ID: 8686823

Claim:
An electronic unit, comprising: a double-sided substrate having an insulation substrate, a first coil bonded on one side of the insulation substrate, and a second coil bonded on another side of the insulation substrate; a core on which the first coil and the second coil are wound; and a heat radiation member for releasing heat from the double-sided substrate, the heat radiation member comprising: a case of a plate shape having a recess in which the core is disposed; surfaces that are horizontally spaced apart from each other such that the core is located between the surfaces; and substrate mountings having the surfaces, wherein the surfaces of the heat radiation member are provided on one of the first coil and the second coil that generates a larger amount of heat than another of the first coil and the second coil such that the one of the first coil and the second coil is electrically insulated from the heat radiation member.