Title:
VAPOR CHAMBER CAVITY SEALING PROCESS AND VAPOR CHAMBER
Document Type and Number:
WIPO Patent Application WO/2024/016408
Kind Code:
A1
Abstract:
A vapor chamber cavity sealing process and a vapor chamber. The cavity sealing process comprises: providing a bottom cover (1) having a recess (11), a cover plate (2), and a capillary structure (3); placing the capillary structure (3) between the cover plate (2) and the bottom cover (1), and then enabling the cover plate (2) to cover an opening of the recess (11), the cover plate (2) and the bottom cover (1) defining an inner cavity; and performing laser soldering on a contact region between the cover plate (2) and the bottom cover (1) to seal the inner cavity so as to obtain a vapor chamber having the sealed cavity. Compared with vapor chambers in the prior art using braze soldering for sealing and fixing, the vapor chamber uses laser soldering for sealing, the cover plate (2) and the bottom cover (1) are directly fused and soldered in the soldering process without adding other soldering flux, and therefore the cavity of the vapor chamber is not polluted and the sealing reliability of the cavity of the vapor chamber is improved; moreover, due to the concentrated energy and small soldered seams of laser soldering, sealing of smaller sealing edges can be achieved, the soldered seam penetration depth is higher than that of braze soldering, and the sealing performance is better.
Inventors:
DAI SHENGLIANG (CN)
CHEN ZHOUZHOU (CN)
CHEN YONGLI (CN)
CHEN ZHOUZHOU (CN)
CHEN YONGLI (CN)
Application Number:
PCT/CN2022/112151
Publication Date:
January 25, 2024
Filing Date:
August 12, 2022
Export Citation:
Assignee:
RAYTECH PRECISION TECH SHUYANG CO LTD (CN)
International Classes:
B23K1/005
Foreign References:
| CN112648870A | 2021-04-13 | |||
| CN113894504A | 2022-01-07 | |||
| CN111220013A | 2020-06-02 | |||
| CN111174617A | 2020-05-19 | |||
| CN112254560A | 2021-01-22 | |||
| CN112082413A | 2020-12-15 | |||
| CN211823993U | 2020-10-30 | |||
| CN110779370A | 2020-02-11 | |||
| CN106541210A | 2017-03-29 | |||
| CN111043885A | 2020-04-21 | |||
| CN110763059A | 2020-02-07 | |||
| CN211429838U | 2020-09-04 | |||
| CN110014202A | 2019-07-16 | |||
| SG95798A1 | ||||
| JP2012529026A | 2012-11-15 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
Download PDF: