Cooling device and projector
US10877361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2019 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Aug 20, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/2099
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cooling device includes an evaporator configured to evaporate working fluid in a liquid phase due to a heat transferred from a cooling target, a condenser configured to condense the working fluid in the vapor phase, a vapor pipe through which the working fluid changed to the vapor phase in the evaporator flow into the condenser, and a liquid pipe through which the working fluid changed to the liquid phase in the condenser flow into the evaporator. The condenser has a phase change flow channel into which the working fluid in the vapor phase inflows via the vapor pipe, and through which the working fluid changed in phase from the vapor phase to the liquid phase flow out to the liquid pipe. The phase change flow channel has a reduced diameter part having a flow channel cross-sectional area decreasing in a direction from upstream toward downstream of the working fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.