Heat pipe and sealing method thereof
US10107562B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2016 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Sep 17, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L23/427
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A heat pipe and a sealing method thereof; the sealing method for a heat pipe includes the steps of: providing a metal pipe member, the metal pipe member including one end having a sealed end portion formed thereon and another end thereof having a narrowing neck section extended therefrom. The narrowing neck section includes a channel. A compression mold compresses the narrowing neck section and moves away from the metal pipe member in order to compress and elongate the narrowing neck section into a compression elongated column and to seal the channel. Finally, spot welding process is performed on the compression elongated column to form a sealed block thereon. The present invention is of the merits of improved work efficiency for heat pipe bending, compression and testing and increased length of the metal pipe member with enhanced thermal transfer performance of the heat pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.