| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power conversion system which reduces influences of an AC magnetic field generated from a magnetic component on control circuit boards and further reduces noise current occurring in a connector.SOLUTION: An electric power conversion system includes: a pair of control circuit boards 3 composed of a first control circuit board 3a and a second control circuit board 3b; a semiconductor module 2; a magnetic component 6 which generates an AC magnetic field by energization; and a case 5 for storing these components. The magnetic component 6 is provided on the first control circuit board 3a. A substrate fixing frame 4 which fixes the pair of control circuit boards 3a, 3b is disposed between the pair of control circuit boards 3a, 3b. A connector insertion hole 50 is formed on a wall part 51 of the case 5. A metal shield plate 40 is provided at the substrate fixing frame 4. A through hole 41 which penetrates through the substrate fixing frame 4 in a thickness direction of the control circuit board 3 is formed between the shield plate 40 and the connector insertion hole 50. |
