| 摘要 |
PROBLEM TO BE SOLVED: To provide a power conversion device that can detect the occurrence of looseness in a fastening member for fixing a lid part of a refrigerant passage.SOLUTION: In a power conversion device 1, a channel part 21 is formed inside a case 20. A lid part 30 is disposed so as to cover the channel part 21. A refrigerant passage 40 is formed between the channel part 21 and the lid part 30 to conduct a refrigerant for cooling a power conversion section 3. A leakage detection section 60 is also disposed to detect leakage from a current path provided in the power conversion section 3 to the case 20. The lid part 30 is fixed to the case 20 by a conductive fastening member 32, and the power conversion section 3 is arranged on the side of the refrigerant passage 40 facing the lid part 30 and has at least part of the current path placed in a position 70 opposite to the fastening member 32. |
