Title:
VAPOR CHAMBER AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/213391
Kind Code:
A1
Abstract:
Provided in the embodiments of the present application are a vapor chamber (VC) and an electronic device. The vapor chamber comprises a housing having an accommodating cavity, wherein the accommodating cavity is internally provided with a second capillary structure and a first capillary structure; a first end and a second end of the first capillary structure abut against the inner bottom wall and the inner top wall of the accommodating cavity, respectively; and after absorbing heat, a working liquid in the first capillary structure is vaporized from the side surface of the first capillary structure, such that the thickness of the vapor chamber is reduced without the need to reserve a cavity for vapor circulation in the vertical direction. The second capillary structure at least covers a heat source region corresponding to a heating device, and a gap is provided between the side of the second capillary structure away from the heat source and the inner top wall of the accommodating cavity, such that the working liquid absorbing the heat can be evaporated from the side surfaces of the first capillary structure and the second capillary structure, and can be evaporated from the side of the second capillary structure away from the heat source region, thereby increasing the evaporation area, and improving the temperature equalization and heat dissipation performance of the vapor chamber.
Inventors:
SUN ZHEN (CN)
YANG JIE (CN)
SHI JIAN (CN)
YANG JIE (CN)
SHI JIAN (CN)
Application Number:
PCT/CN2021/088437
Publication Date:
October 28, 2021
Filing Date:
April 20, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
F28D15/04
Foreign References:
| US20110024085A1 | 2011-02-03 | |||
| CN110573821A | 2019-12-13 | |||
| CN109737783A | 2019-05-10 | |||
| CN101782342A | 2010-07-21 | |||
| US20130025829A1 | 2013-01-31 | |||
| CN201964812U | 2011-09-07 | |||
| CN101309573A | 2008-11-19 | |||
| JP2002062067A | 2002-02-28 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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