| 摘要 |
PROBLEM TO BE SOLVED: To provide a power conversion device that stably fixes a control circuit board by effectively suppressing vibrations thereof.SOLUTION: A power conversion device 1 has a semiconductor unit 2, a control circuit board 3 and a case 4. The case 4 has a wall part 42, peripheral fixing parts 45, and a partition part 43 separating a first housing space 401 and a second housing space 402. The control circuit board 3 is arranged in the first housing space 401, and the semiconductor unit 2 is arranged in the second housing space 402. The partition part 43 has a unit side communication hole 431 through which control terminals 212 are passed, an inner fixing boss 44 fixing the control circuit board 3 inside of the peripheral fixing parts 45 when viewed from a normal direction Z, and ribs formed so as to protrude in the normal direction Z. The ribs are each formed so as to connect the inner fixing boss 44 to the wall part 42. |
