| 摘要 |
PROBLEM TO BE SOLVED: To improve fixing and removal of rectifier elements and easily position the fixing member. SOLUTION: A rectifier 45 has a positive pole side cooling fin 51 which fixes a positive pole side rectifier element 61, a negative pole side cooling fin 52 which fixes a negative pole side rectifier element 62, and a terminal block 53 which connects these cooling fins 51, 52 lapping each other with a predetermined space. The positive pole side and the negative side rectifier elements 61, 62 are each individually accommodated in the respective fixing members 54, 55 which form each an approximately cylindrical shape having a bottom. Tapered screw holes 65, 66 are respectively provided on the cooling fins 51, 52 by screwing the respective male threaded part of the outer periphery of the fixing members 54, 55 into the screw holes 65, 66. The tapered screw holes 65, 66 are each constituted by having a smaller diameter on the side the lead is drawn out and a large diameter on the opposite side. |
