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1. (WO2018198350) VAPOR CHAMBER

Pub. No.:    WO/2018/198350    International Application No.:    PCT/JP2017/017035
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 29 01:59:59 CEST 2017
IPC: F28D 15/02
Applicants: MURATA MANUFACTURING CO., LTD.
株式会社村田製作所
Inventors: KISHIMOTO, Atsushi
岸本 敦司
KUME, Norikazu
久米 宗一
IKEDA, Haruhiko
池田 治彦
WAKAOKA, Takuo
若岡 拓生
CHIKAGAWA, Osamu
近川 修
Title: VAPOR CHAMBER
Abstract:
This vapor chamber (1) has a casing comprising a first sheet (2) and a second sheet (3) facing one another, with the outer edges thereof bonded to one another, a column (5) provided between the first sheet (2) and the second sheet (3) to support the same from the inside, and operating fluid sealed within the casing (4). The first sheet (2) and the second sheet (3) do not have corners with angles less than 90°C between the junction (6) and the closest column (5) to the junction (6), and satisfy formulae 1 to 3 below. Formula 1: c≥1.8×b/a+0.270, Formula 2: 0.016≤b/a≤0.125, Formula 3: b≤0.500 [In the formulae, a is the distance (in mm) from the position at which deformation of the sheet starts to the end of the junction, b is the distance (in mm) between the first sheet and the second sheet at the position at which deformation of the sheet starts, and c is the width (in mm) of the junction.]