Phase-change heat dissipation device and lamp
US9581393B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 5, 2015 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Sep 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8586
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A phase-change heat dissipating device includes a heat absorbing body, a heat dissipation body and two tubes. The heat absorbing body is filled with a working fluid. A light source and the heat dissipation body are disposed on a same side of the heat absorbing body. The heat dissipation body has a light transmitting space which is corresponding to the light source. The tubes connect the heat absorbing body and the heat dissipation body. When the heat dissipation body is located higher than the heat absorbing body and the working fluid absorbs the heat energy generated from the light source, the working fluid is evaporated from liquid phase to gas phase and flows into the heat dissipation body through the tubes. The working fluid locating in the heat dissipation body is condensed from gas phase into liquid phase and flows to the heat absorbing body through the tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.