Power conversion apparatus including wedge inserts
US9870974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2014 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Mar 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/13055
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A power conversion apparatus includes: a circuit body including a switching device; a base member forming a first concave portion and a cooling surface; and a wedge inserted in the first concave portion of the base member. The first concave portion of the base member is formed by a substrate portion forming the cooling surface, a first wall disposed on the opposite side of the substrate portion from the cooling surface, and an intermediate portion interconnecting the first wall and the substrate portion. The first wall forms an insertion space for insertion of the wedge, and a heat transfer plane forming a heat dissipating surface and a heat transfer path of the circuit body. The intermediate portion is plastically deformed by inserting the wedge into the insertion space, thus causing the first wall to be displaced toward the location of the circuit body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.