Title:
VAPOR CHAMBER, VAPOR CHAMBER WICK SHEET, AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/168801
Kind Code:
A1
Abstract:
A vapor chamber (1) comprises: a first sheet (10); a second sheet (20); and a wick sheet (30). The wick sheet (30) includes: a first body surface (31a); a second body surface (31b); a vapor flowpath section (50) which extends from the first body surface (31a) to the second body surface (31b), and through which vapor (2a) of a working fluid passes; and a liquid flowpath section (60) which is provided in the second body surface (31b), and is communicated with the vapor flow path section (50) so as to allow a liquid-state working fluid (2b) to pass. The liquid flow path section (60) includes a plurality of fluid path main flow grooves (61a-61f) through which the liquid-state working fluid (2b) passes, and among the plurality of fluid path main flow grooves (61a-61f), the fluid path main flow grooves (61a, 61f) closest to the steam path section (50) have a width (w3a, w3f) greater than the width (w3b-w3e) of the other fluid path main flow grooves (61b-61e).
Inventors:
TAKAHASHI SHINICHIRO (JP)
ODA KAZUNORI (JP)
INOUE ISAO (JP)
ODA KAZUNORI (JP)
INOUE ISAO (JP)
Application Number:
PCT/JP2022/003623
Publication Date:
August 11, 2022
Filing Date:
January 31, 2022
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
F28D15/04; F28D15/02; H01L23/427; H05K7/20
Foreign References:
| JP2019039662A | 2019-03-14 | |||
| JP2019143960A | 2019-08-29 | |||
| JP2015121355A | 2015-07-02 |
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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