Color wheel device and projector
US10663845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Apr 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a color wheel device and a projector, wherein the color wheel device comprises: a color wheel chamber used for accommodating a color wheel module and provided with an air inlet and an air outlet; a heat exchanger having a heat-exchange core, the heat-exchange core being provided with a first channel for air in the color wheel chamber passing, the air outlet of the color wheel chamber being communicated with a heat-exchange inlet of the first channel, and a heat-exchange outlet of the first channel being communicated with the air inlet of the color wheel chamber to form a closed circulating air duct, wherein the first channel has multiple layers spaced apart from one another, and the space between two adjacent layers of the first channel forms a second channel for outside air passing; and an air propulsion device used for accelerating air flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.