Electronic controller for vehicle

摘要

An electronic controller for a vehicle includes a circuit board on which an electronic component is mounted and a metal housing accommodating the circuit board therein. The housing includes an inner face and an outer face, at least one of the inner face and the outer face being subjected to surface treatment facilitating heat absorption and dissipation. The inner face of the housing further includes a protruding portion extending to a heating portion of the circuit board so as to be close to the heating portion, or includes concavities and convexities at at least a part thereof opposed to a surface of the circuit board on which the electronic component is mounted so as to increase a surface area of the inner face.

主权项

1. An electronic controller for a vehicle, comprising:
a circuit board on which an electronic component is mounted; and a housing made of metal which accommodates the circuit board therein, the housing including at least one of an inner face and an outer face having an applied or electro-deposited alumite surface treatment thereon, facilitating heat absorption and dissipation, and the inner face including a protruding portion extending to a heat-generating portion of the circuit board so as to be close to the heat-generating portion; wherein: the housing includes: a main body including a recessed portion to accommodate the circuit board; and a lid to close an opening of the main body; the heat-generating portion is a heat-generating element mounted on the circuit board; and the protruding portion is integral with an extending portion extending toward the heat-generating element so as to cover at least a part of a side wall of the heat-generating element.