Electrical control unit
An electronic control unit (ECU) includes onboard type electronic components and non-onboard type electronic components inside an aluminum case. The ECU has a circuit board for mounting the onboard type electronic component in a first portion of a bottom surface, and a concavity for installing the non-onboard type electronic components in a second portion of the bottom surface. A resinous frame is provided in the concavity to house and hold the non-onboard type electronic components.
1. An electronic control unit, comprising:
a case that is made of a thermally conductive metallic and has a first portion of a bottom surface and a second portion of the bottom surface, and a concavity disposed in the second portion of the bottom surface;
a circuit board disposed in the first portion of the bottom surface;
an onboard type electronic component disposed on the circuit board;
a resinous frame disposed in the concavity; and
a non-onboard type electronic component housed in the resinous frame.
2. The electronic control unit according to claim 1 , wherein the circuit board is electrically connected to the non-onboard type electronic component via a metallic foil.
3. The electronic control unit according to claim 1 , further comprising a conjunctive pin that is electrically connected to the circuit board.