Control device and motor unit including the control device

摘要

A control device of a motor unit includes a housing, and a circuit board that is housed in the housing. The circuit board includes a first substrate portion which is fixed to a side wall and in which heat dissipation components are fitted onto a first main surface, a second substrate portion in which a second main surface faces the first main surface of the first substrate portion, and heating elements are fitted onto the second main surface, and a first connecting portion that connects an end portion of the first substrate portion with an end portion of the second substrate portion. The heating elements and the heat dissipation components face each other.

主权项

1. A control device including a circuit board and a housing, wherein
the housing has a supporting wall portion that supports the circuit board, and the circuit board includes:
a first substrate portion that is arranged on the supporting wall portion, has a first main surface, and has one of a heating element and a heat dissipation component;a second substrate portion that has a second main surface facing the first main surface of the first substrate portion, and has the other one of the heating element and the heat dissipation component, the heat dissipation component and the heating element facing each other; and a connecting portion that connects an end portion of the first substrate portion with an end portion of the second substrate portion.