| 摘要 |
PROBLEM TO BE SOLVED: To new electrically-driven driving device and electric power steering device which suppress enlarging of a housing accommodating an electronic control device therein in a radial direction, and reduce the number of parts such as a relay connector as much as possible and have a simple heat dissipation structure.SOLUTION: An electronic control assembly is divided into a power source circuit portion 14 mounted on a metal substrate 17, a power conversion circuit portion 15 mounted on a metal substrate 18, and a control circuit portion 16 mounted on a resin substrate, a power supply connector wiring portion which supplies electric power from the power source circuit portion to the power conversion circuit portion and the control circuit portion, a signal transmission connector wiring portion for transmitting input/output signals to/from the control circuit portion are embedded in a connector terminal assembly formed of a synthetic resin and are arranged in the outer peripheral side of the metal substrate, and a power supply connector wiring portion exposed from the connector terminal assembly and a connector terminal of the signal transmission connector wiring portion are directly connected to connectors of the corresponding power source circuit portion, power conversion circuit portion and control circuit portion.SELECTED DRAWING: Figure 3 |
