Title:
VAPOR CHAMBER
Document Type and Number:
WIPO Patent Application WO/2022/210838
Kind Code:
A1
Abstract:
Provided is a vapor chamber in which a thermal resistance when a liquid-phase working fluid changes to a gas phase is reduced and dryout of the liquid-phase working fluid in an evaporating portion is prevented, thereby providing excellent heat transport characteristics. The vapor chamber comprises: a container having a hollow portion formed therein and having a first surface and a second surface opposing the first surface; and a vapor flow path through which a working fluid sealed in the hollow portion and a gas phase of the working fluid are circulated and which is provided in the hollow portion. On the inner surface of the first surface, a container inner-surface-area-increasing portion having protrusions is formed. A first wick structure is provided on an upper surface of the protrusions.
Inventors:
KAWABATA KENYA (JP)
INAGAKI YOSHIKATSU (JP)
AOKI HIROFUMI (JP)
OKADA HIROSHI (JP)
WATANABE YOSUKE (JP)
KAWABATA HIDEAKI (JP)
INAGAKI YOSHIKATSU (JP)
AOKI HIROFUMI (JP)
OKADA HIROSHI (JP)
WATANABE YOSUKE (JP)
KAWABATA HIDEAKI (JP)
Application Number:
PCT/JP2022/015837
Publication Date:
October 06, 2022
Filing Date:
March 30, 2022
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
H01L23/427; F28D15/02; F28D15/04; H05K7/20
Domestic Patent References:
| WO2019065728A1 | 2019-04-04 |
Foreign References:
| JP2018189349A | 2018-11-29 | |||
| US6997245B2 | 2006-02-14 | |||
| US3598180A | 1971-08-10 | |||
| JP2019082264A | 2019-05-30 | |||
| JP2015132399A | 2015-07-23 | |||
| US20090159242A1 | 2009-06-25 |
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
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