Cooling device and projection-type image display apparatus
US9915858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2017 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Jan 3, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cooling device cools down a wheel having a disc shape. The wheel is hermetically enclosed in an enclosure and rotationally driven about a rotation shaft. The cooling device includes blade members that are disposed on one surface of the wheel, a heat dissipater to which a gas heated by the wheel is blown by the blade members due to rotation of the wheel, and a gas flow definer that is located inside the enclosure, and separates a flow path along which the gas that has been cooled by the heat dissipater flows before being blown to the one surface and a flow path along which the gas that has been blown to the one surface and heated flows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.