IN-VEHICLE ELECTRONIC CONTROL UNIT

摘要

An in-vehicle electronic control unit includes a circuit board equipped with a coil and a power supply circuit, a resin member covering the circuit board, and a metal bracket fixed to the resin member for attaching the circuit board to a vehicle. The metal bracket includes a first shield portion and a second shield portion. The first shield portion is arranged to only a part of an upper surface of the resin member so that when projected in a winding axis direction of the coil, the first shield portion overlaps at least a part of the coil. The second shield portion extends from the first shield portion in the winding axis direction of the coil and is arranged to only a part of a side surface of the resin member.

主权项

1. An in-vehicle electronic control unit comprising:
a circuit board having a front surface and a rear surface opposite to the front surface and equipped with a power supply circuit that performs voltage conversion, wherein a coil constituting the power supply circuit is mounted on the front surface of the circuit board; a resin member covering the circuit board to protect the circuit board, wherein an outer surface of the resin member has an upper surface and a lower surface opposite to the upper surface, wherein the upper surface of the resin member is located on a front surface side of the circuit board and the lower surface of the resin member is located on a rear surface side of the circuit board, wherein the outer surface of the resin member further has a side surface that connects the upper surface and the lower surface; and a metal bracket for attaching the circuit board to a vehicle, wherein the metal bracket is fixed to the resin member, wherein the metal bracket includes: a first shield portion arranged to only a part of the upper surface of the resin member so that when projected in a winding axis direction of the coil, the first shield portion overlaps at least a part of the coil; and a second shield portion extending from the first shield portion in the winding axis direction of the coil and arranged to only a part of the side surface of the resin member, wherein the metal bracket is to be electrically connected to a body of the vehicle.