| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve strength against breakdown due to external discharge by laminating a plurality of cylindrical insulators that are different one another, and by forming a recessed part for mounting fittings for high-voltage connection to the cylinder at the highest stage. SOLUTION: A cylindrical terminal block 3 that partially has a recessed part formed in one piece with a high-voltage rheostat case (case) 1a is composed of a recessed part 3a that inserts a high-voltage connection fitting 2, a plurality of cylindrical parts 3b that are connected to the case 1a and have a different diameter one another, and a pedestal 3c of each cylinder part. Furthermore, two terminal blocks 3, where a high-voltage capacitor connection part terminal block 3d and a high-voltage rheostat connection part terminal block 3e are close each other as one set, are arranged in an orthogonal direction. Then, in the one set of the two terminal blocks 3, a retention part 2d of the high- voltage connection fitting 2 is inserted into the recessed part 3a arranged in line. The high-voltage connection fitting 2 is provided with a projection part 2c for connecting to groove 2a, groove 2b, and an FBT body, and the projection part 2c is inserted into the insertion part of the terminal block 3.</p> |
