Heat sink assembly
US7472742B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2005 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jan 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a cooling system for cooling power electronics on a locomotive where the cooling system includes a finned heat sink that has air passing therethrough an airway passage to reach a plurality of fins where reducing airborne debris clogging of the plurality of fins is preferred, the heat sink includes at least one of a by-pass area having no fins located at an area where debris is expected to pass through the plurality of fins, a turning guide directing air between the plurality of fins at a specific location, a blockage reduction fin structure on at least one fin of the plurality of fins, and fins proximate within the inlet airway passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.