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1. (WO2018043442) COOLING DEVICE AND ELECTRONIC EQUIPMENT USING SAME

Pub. No.:    WO/2018/043442    International Application No.:    PCT/JP2017/030826
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Aug 30 01:59:59 CEST 2017
IPC: F28D 15/02
H01L 23/473
H05K 7/20
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: SATOU Kaoru
佐藤 郁
SUZUKI Ayaka
鈴木 彩加
Title: COOLING DEVICE AND ELECTRONIC EQUIPMENT USING SAME
Abstract:
A cooling device: that comprises a heat receiving unit (4) that transfers heat from a heat-generating element to refrigerant, a heat dissipating unit that is connected to the heat receiving unit (4) via a heat dissipating path (6), and a return path (7) that connects the heat dissipating unit and the heat receiving unit (4); and that cools the heat-generating element by circulating the refrigerant, accompanied by a gas-liquid two-phase change, through the heat receiving unit (4), the heat dissipating path (6), the heat dissipating unit, and the return path (7), in order. The heat receiving unit (4) comprises a heat receiving plate (11) that is in contact with the heat-generating element and absorbs heat, and a heat receiving cover (14) that covers the surface of the heat receiving plate (11) and forms a heat receiving space (13). In addition, a check valve (18) that opens when the pressure in the return path (7) is greater than the pressure in the heat receiving space (13) is provided between the return path (7) and the heat receiving unit (4), and a hydrophilic surface treated membrane (22) is formed in a recess (24) provided on the surface of the heat receiving plate (11).