| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress increase in cost by detecting the attached states of relays by using already existing parts. SOLUTION: A cover 16 is slidably provided along the direction parallel to parts attaching surface 13a of a main body 13 of a case. A height h1 from the parts attaching surface 13a to the interior surface of the cover 16 is made slightly higher than a height h2 from the parts attaching surface 13a to the front end faces of relays 15, when the relays 15 are attached completely. When the relays 15 are not completely attached, the lower end section of the cover 16 can be made to interfere with the front end sections of the relays 15. Therefore, the attached states of the relays 15 can be detected by using the cover 16, which is an already existing part.</p> |
