Water cooled inverter
US6621701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2002 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Jul 16, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/1627
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to the invention, there is provided a water cooled inverter structure forming a plurality of shallow cavities and deep cavities in a housing, fixing a bottom surface of power semiconductor modules to shallow cavities to form a shallow water channel and directly cooling the power semiconductor modules using this shallow water channel. Since cooling water flows fast in the shallow water channel, it is possible to improve a cooling efficiency and also reduce pressure loss using a deep water channel with deep cavities. Furthermore, providing a plurality of cavities makes it possible to reduce a size of the power semiconductor modules and provide a plurality of power semiconductor modules, thus improving reliability. It is possible to place a control board below the water channel to thermally cut off the control board from the power semiconductor modules, which makes it possible to reduce temperature of a control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.