Cooling device and projector
US10838287B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2019 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Sep 3, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cooling device includes an evaporator, a condenser, a vapor pipe, and a liquid pipe. The evaporator includes a housing having a reservoir, a wick disposed in the housing and retaining the working fluid in the liquid phase, and a groove member having a plurality of flow channels through which the working fluid in the vapor phase flows. The wick has first, second and third layers. The first layer has a plurality of first apertures, and is higher in thermal conductivity than both the second and third layers. The third layer transports the working fluid in the liquid phase in the reservoir to the second layer. The second layer has a plurality of second apertures corresponding to the first apertures, the second apertures having aperture area larger than corresponding one of the first apertures. The second layer transports the working fluid in the liquid phase to the first layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.