Heat sink device for power modules of power converter assembly
US9279625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2013 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Sep 6, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D2021/0029
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat sink for power modules can be incorporated into a power module of a machine. In embodiments, an alloy is extruded to form a body with a plurality of divider webs integral thereto and defining a plurality of longitudinal passage segments inside the body. The body is machined to remove alternating end portions of the divider webs to define a fitting end turn area and a return end turn area disposed in opposing relationship with each other, thereby forming a serpentine fluid passage. A fitting end cap is welded to the body. A fluid inlet and a fluid outlet of the fitting end cap are respectively in fluid communication with a passage inlet and a passage outlet of the serpentine fluid passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.