| 摘要 |
An electric power converter has a semiconductor stacked unit, auxiliary electronic components, a pressing member, and a case for accommodating these components. The case has a front wall in a stacking direction, a rear wall, a pair of side walls, and inner walls. The inner walls include a partition wall that is disposed opposing the front wall, and a support wall that is formed so as to extend toward the rear wall from a rear end surface of the partition wall. A unit accommodation space for accommodating the semiconductor stacked unit and the pressing member is formed between the partition wall and the front wall. Auxiliary accommodation spaces for accommodating the auxiliary electronic components are formed between the partition wall and the rear wall. |
| 主权项 |
1. An electric power converter comprising:
a semiconductor stacked unit formed by stacking alternately a plurality of semiconductor modules with built-in semiconductor element therein and a plurality of cooling pipes for cooling the plurality of semiconductor module; auxiliary electronic components that form a power conversion circuit together with the semiconductor modules; a pressing member that presses the semiconductor stacked unit in a stacking direction; and a case that accommodates the semiconductor stacked unit, the auxiliary electronic components and the pressing member; wherein, the case has a front wall disposed on a front side in the stacking direction and a rear wall disposed on a rear side in the stacking direction, a pair of side walls that connect both ends in a lateral direction, which is normal to the stacking direction, of the front wall and the rear wall, and inner walls disposed inside the front wall, the rear wall, and the pair of side walls; the inner walls include a partition wall that is disposed opposing the front wall, and a support wall that is formed so as to extend toward the rear wall from a rear end surface of the partition wall; wherein, a unit accommodation space for accommodating the semiconductor stacked unit and the pressing member is formed between the partition wall and the front wall; and auxiliary accommodation spaces for accommodating the auxiliary electronic components are formed between the partition wall and the rear wall. |
