ELECTRONIC CONTROL APPARATUS
First Claim
1. An electronic control apparatus comprising:
- a housing that is made of an insulating resin and has a pair of opening portions at opposite sides thereof, respectively;
a heat sink that is attached to one of said opening portions of said housing;
a power device that is mounted on said heat sink;
a circuit board that is arranged in opposition to said heat sink, and has an electronic circuit including a control circuit for controlling said power device;
a plurality of conductive plates that have their base portions held by said housing and electrically connect said circuit board and said power device to each other; and
a resilient member that urges said power device to said heat sink;
wherein said resilient member is engaged with said housing 3.
1 Assignment
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Accused Products
Abstract
An electronic control apparatus can be reduced in size and cost by removing a metal substrate part. The apparatus includes a housing having a pair of opening portions at its opposite sides, a heat sink attached to one of the opening portions of the housing, a pair of semiconductor switching elements mounted on the heat sink, a circuit board arranged in opposition to the heat sink, a plurality of conductive plates electrically connecting the circuit board and the semiconductor switching elements to each other, and a plate spring urging the semiconductor switching elements against the heat sink. The plate spring has engagement portions press-fitted to and engaged with inner sides of holding portions which are formed on the housing, and the housing has engagement portions engaged with protruded portions of the heat sink.
71 Citations
12 Claims
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1. An electronic control apparatus comprising:
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a housing that is made of an insulating resin and has a pair of opening portions at opposite sides thereof, respectively; a heat sink that is attached to one of said opening portions of said housing; a power device that is mounted on said heat sink; a circuit board that is arranged in opposition to said heat sink, and has an electronic circuit including a control circuit for controlling said power device; a plurality of conductive plates that have their base portions held by said housing and electrically connect said circuit board and said power device to each other; and a resilient member that urges said power device to said heat sink; wherein said resilient member is engaged with said housing 3. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification