Motor drive apparatus having a simplified assembling structure
AssigneeDenso Corporation
InventorsTakayuki Uchida, Hiroyuki Kawata, Yasuyoshi Toda
Life of this patent
Estimating the term…
Abstract
In an ECU attached to a motor assembly, inverter FETs, which generate outputs for driving a motor, are electrically connected to a substrate. A plurality of screw holes is formed in a heat sink thereby to fix the substrate. A resin member is provided between the heat sink and the substrate and has a plurality of motor terminals and a resin mold, which integrally fix the motor terminals by molding the motor terminals. The motor terminal has an embedded part, a L-shaped substrate-side exposed part and a motor-side exposed side including a curbed part. The resin member and the substrate are tightened together and fixed to the heat sink.
Claims12
A motor drive apparatus comprising:
- a substrate, to which power elements are electrically connected to generate outputs for driving a motor;
- a fixed member having a plurality of screw holes for fixing the substrate;
- and
- a resin member provided between the fixed member and the substrate and having a plurality of motor terminals and a resin mold, the motor terminals electrically connecting the motor and the substrate, and the resin mold integrally fixing the motor terminals by molding an intermediate part of each of the motor terminals,
- wherein each of the motor terminals has an embedded part molded in the resin member, a substrate-side exposed part exposed to a substrate side and a motor-side exposed part exposed to a motor side,
- wherein the resin member and the substrate have through holes in correspondence to the screw holes of the fixed member and are tightened together to be fixed to the fixed member, and
- wherein the fixed member and the substrate have an additional screw hole and an additional through hole, respectively, in correspondence to each other to be fixed to each other at a position separated from the resin member.
Dependencies are inferred from the claim text.