Title:
SELF-EXCITED VIBRATION HEAT PIPE COOLING DEVICE, AND RAILWAY VEHICLE ON WHICH COOLING DEVICE IS MOUNTED
Document Type and Number:
WIPO Patent Application WO/2020/225981
Kind Code:
A1
Abstract:
In order to provide a self-excited vibration heat pipe cooling device in which self-excited vibration is generated even when the initial distribution of liquid slag and vapor plug in the heat pipe is uniform, whereby an excellent startability is obtained, the present invention provides a self-excited vibration heat pipe cooling device, equipped with: a heat pipe having a structure in which heat-receiving parts and heat dissipation parts are alternately disposed, the heat pipe being constituted by communicating, in the thickness direction in a rectangular wavy shape, pipes that are made to enclose a working fluid and sealed, so as to form a wave shape; a heat-receiving member joined to the heat-receiving parts; and a heating body disposed on the surface of the heat-receiving member on the opposite side from the surface to which the heat-receiving parts are joined. At least one of the disposition of the heating body, the configuration of the heat dissipation parts, the configuration of the heat-receiving parts, and the configuration of the heat-receiving member is changed, and the temperature distribution of the heat-receiving parts with respect to the longitudinal direction of the heat pipe is made asymmetrical about the center part with respect to the longitudinal direction, whereby self-excited vibration is generated.
Inventors:
ENDOH KAZUHIRO (JP)
YASUDA YOSUKE (JP)
NABESHIMA FUMIKA (JP)
YASUDA YOSUKE (JP)
NABESHIMA FUMIKA (JP)
Application Number:
PCT/JP2020/011670
Publication Date:
November 12, 2020
Filing Date:
March 17, 2020
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
F28D1/047; B60L3/00; F28D15/02; F28F1/02; F28F13/10; H01L23/427; H05K7/20
Foreign References:
| JP2014157007A | 2014-08-28 | |||
| JP2018088744A | 2018-06-07 | |||
| JP2013088051A | 2013-05-13 | |||
| JP2013160420A | 2013-08-19 | |||
| JP2012220160A | 2012-11-12 | |||
| JP2014055698A | 2014-03-27 | |||
| US20150060019A1 | 2015-03-05 | |||
| US20190051809A1 | 2019-02-14 |
Attorney, Agent or Firm:
PATENT CORPORATE BODY DAI-ICHI KOKUSAI TOKKYO JIMUSHO (JP)
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