| 摘要 |
<p>In order to reduce parts count as much as possible to facilitate assembling, and to protect an electronic control unit (16) from water droplets with a simple structure, the ECU (16) includes a base (16a), an ECU board (16b) fixed to the base (16a) and controlling the driving of a motor (4), and a cover (16c) attached to the base (16a). The base (16a) has a guide wall (16a 4 ) that guides entered water droplets to the right and left side rims and drops the water droplets thereafter. The ECU board (16b) has at the lower end an ECU connector (16b 1 ) integrated thereto. The ECU board (16b) and the ECU connector (16b 1 ) are electrically connected. Furthermore, the cover (16c) has a downward opening (16c 1 ) at the lower end. With the ECU (16) assembled, the lower end of the interior of the ECU (16) is open downward through the opening (16c 1 ).</p> |
