ELECTRONIC CONTROL UNIT

摘要

An electronic control unit includes a substrate, an electronic component, a heat sink, a cover, a heat accumulator, and a screw. A wiring pattern is formed on the substrate. The electronic component is mounted on the substrate and generates heat upon energization thereof. The heat sink is provided on one side of the substrate in its thickness direction. The cover is made of resin and is provided on the other side of the substrate in its thickness direction. The heat accumulator is fixed to a part of the cover on the substrate-side and is in contact with a surface of the substrate on the cover-side. One end of the screw is connected to the heat sink. A central portion of the screw is inserted through a hole passing through the substrate in its thickness direction. The other end of the screw is connected to the heat accumulator.

主权项

1. An electronic control unit comprising:
a substrate on which a wiring pattern is formed; an electronic component that is mounted on the substrate and generates heat upon energization of the electronic component; a heat sink that is provided on one side of the substrate in a thickness direction of the substrate; a cover that is made of resin and is provided on the other side of the substrate in the thickness direction of the substrate; a heat accumulator that is fixed to a part of the cover on the substrate-side and is in contact with a surface of the substrate on the cover-side; and a screw, wherein:
one end of the screw is connected to the heat sink;a central portion of the screw is inserted through a hole passing through the substrate in its thickness direction; andthe other end of the screw is connected to the heat accumulator.