Patent ID: 9480189
Filing Date: 2016-10-25
CPC Classification: H01L,H05K

Claim Text:
1. An electronic control apparatus accommodating, in a space inside an enclosure formed by connecting a plurality of enclosure members together, a circuit board on which a plurality of heat-generating electronic components that generate heat are mounted, comprising: a recessed portion formed in a position facing each heat-generating electronic component in the enclosure member that faces each heat-generating electronic component, and a component clearance being formed between an inner wall surface of the recessed portion and each heat-generating electronic component, a peripheral clearance, which is set with a distance from an opening edge of the recessed portion to the circuit board being a reference, being formed between the circuit board and the enclosure member on at least one peripheral edge side of each heat-generating electronic component, and hollows disposed between the plurality of heat-generating electronic components communicating with each other through the peripheral clearance.