Title:
HEATSINK
Document Type and Number:
WIPO Patent Application WO/2020/213581
Kind Code:
A1
Abstract:
The present invention provides a heatsink which can increase the fin area of a heat radiation fin while sufficiently obtaining the volumes of a heat receiving part, a heat insulating part, and a heat radiating part even in an environment in which an installation space for the heatsink, particularly, an installation space for the heatsink in the height direction, is limited. The heatsink comprises: a heat transport member that has a heat receiving part thermally connected to a heating element; a tubular body connected to a heat radiating part of the heat transport member; and a heat radiating fin group which is thermally connected to the tubular body and in which a plurality of heat radiating fins are arranged, wherein the heat transport member has an integrated internal space that communicates from the heat receiving part to a connection part with the tubular body and is encapsulated with a working fluid, the internal space of the heat transport member communicates with an internal space of the tubular body, and the cross-sectional area of an internal space of the heat radiating part in a direction orthogonal to a heat transport direction of the heat transport member is smaller than the cross-sectional area of a heat insulating part between the heat receiving part and the heat radiating part.
Inventors:
WATANABE YOSUKE (JP)
KAWABATA KENYA (JP)
INAGAKI YOSHIKATSU (JP)
MIURA TATSURO (JP)
AOTANI KAZUAKI (JP)
NAKAMURA TOSHIAKI (JP)
KAWABATA KENYA (JP)
INAGAKI YOSHIKATSU (JP)
MIURA TATSURO (JP)
AOTANI KAZUAKI (JP)
NAKAMURA TOSHIAKI (JP)
Application Number:
PCT/JP2020/016355
Publication Date:
October 22, 2020
Filing Date:
April 14, 2020
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
H01L23/36; F28D15/02; H01L23/427; H05K7/20
Foreign References:
| JPS55102889A | 1980-08-06 | |||
| JPS61125590A | 1986-06-13 | |||
| JP2015161448A | 2015-09-07 | |||
| US20190049190A1 | 2019-02-14 | |||
| US20160003555A1 | 2016-01-07 | |||
| US20180066896A1 | 2018-03-08 | |||
| JP2011047593A | 2011-03-10 | |||
| JP2006313056A | 2006-11-16 | |||
| JP2009287821A | 2009-12-10 | |||
| JP2003110072A | 2003-04-11 |
Other References:
See also references of EP 3758057A4
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
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