| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve heat radiation of a control unit used for vehicle control with a simple structure, without using an air blowing device such as a fan. SOLUTION: A storage case 8 is constituted beneath a boarding step 7, and the bottom face of the storage case 8 excluding at least portions close to the side faces is upheaved to form a mounting face 9. A thin and broad heat radiating plate 11 of a control unit 10 is mounted so as to be in contact with the mounting face 9. Thus, generated heat of the control unit 10 itself is transferred to the bottom face of the storage case 8 and is accurately radiated to the outside without the use of a blower such as a fan or the like.</p> |
