| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve resistance to static electricity without increasing size. SOLUTION: A case side conductor part 8 is formed on the whole inner surface of a lower case part 2 including the inner surface near an opening part 5, the surface of a positioning projecting part 6 and the surface of a screw insert-through boss part 7 of the lower case part 2, and another case side conductor part is formed on the whole inner surface of an upper case part 3 including the inner surface near switches 11, 12 and the inner surface of a positioning hole part (not shown in the figure). An electronic circuit board 15 is formed with a board side conductor part 18 conductive with the case side conductor part 8. Grounding wiring 19 connected to vehicle grounding is connected to the board side conductor part 15.</p> |
