Main circuit wiring member and power conversion device
AssigneeMitsubishi Electric Corporation
InventorYuhei Usui
Life of this patent
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Abstract
A busbar includes an opening, a first terminal, and a second terminal. The first terminal includes a first terminal piece with a step-like bent shape, in which the first terminal piece is bent from a conductor along a bending line, and a plurality of hole portions formed on the first terminal piece and arrayed in a direction parallel to the bending line. The second terminal includes a second terminal piece with a step-like bent shape, in which the second terminal piece is bent from a conductor along a bending line, and a plurality of hole portions formed on the second terminal piece and arrayed in a direction parallel to the bending line. The busbar balances the current sharing in a current that flows through a plurality of fastening points.
Claims10
A main circuit wiring member including a first main surface on which a first semiconductor module is mounted, a second main surface that is a surface opposite to the first main surface, and a plurality of flat conductors layered through insulators, the main circuit wiring member comprising:
- a first flat conductor located on a first layer and applied with a first potential;
- a second flat conductor located on a second layer and applied with a second potential;
- a first opening passing through between the first main surface and the second main surface;
- a first terminal including a first terminal piece with a step-like bent shape, in which the first terminal piece is bent from the first flat conductor along a first side that is one of sides of the first opening, and a plurality of first hole portions formed on the first terminal piece and arrayed in a direction parallel to the first side;
- and
- a second terminal including a second terminal piece with a step-like bent shape, in which the second terminal piece is bent from the second flat conductor along a second side that is one of sides of the first opening and opposed to the first side, and a plurality of second hole portions formed on the second terminal piece and arrayed in a direction parallel to the second side, wherein
- the first terminal is fastened to a first module terminal of the first semiconductor module through the first hole portions, and the second terminal is fastened to a second module terminal of the first semiconductor module through the second hole portions.
Dependencies are inferred from the claim text.