Title:
RADIATION COOLING DEVICE FOR HIGH-HEAT-FLUX HEAT GENERATING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2021/259385
Kind Code:
A1
Abstract:
A radiation cooling device for a high-heat-flux heat generating element. The device is composed of a cold plate, a first thermal conductive silica gel layer, a graphene thermal conduction layer, a second thermal conductive silica gel layer and a heat generating element, wherein the graphene thermal conduction layer is composed of a metal housing, several pieces of graphene and several metal sheets; the graphene and the metal sheets are successively stacked from left to right, and are all vertically arranged between the cold plate and the heat generating element; and thermal conductive silica gel is filled between the cold plate and the graphene thermal conduction layer, and between the graphene thermal conduction layer and the heat generating element. Heat generated by the heat generating element is conducted, by using the ultrahigh thermal conductivity of the graphene in the plane direction, from the heat generating element, which has a very small surface area, to the cold plate, which has a relatively large area, and the thermal conductive silica gel layers can also effectively reduce thermal contact resistance during a heat transfer process, such that the heat generated by the heat generating element can be rapidly dissipated to the external environment by means of a cooling medium inside the cold plate, thereby greatly improving the radiation efficiency.
Inventors:
DONG KAIJUN (CN)
SHAO ZHENHUA (CN)
SU LIN (CN)
SHAO ZHENHUA (CN)
SU LIN (CN)
Application Number:
PCT/CN2021/109088
Publication Date:
December 30, 2021
Filing Date:
July 29, 2021
Export Citation:
Assignee:
GUANGZHOU INST ENERGY CONVERSION CAS (CN)
International Classes:
H05K7/20
Foreign References:
| CN112040741A | 2020-12-04 | |||
| CN210607227U | 2020-05-22 | |||
| CN206341549U | 2017-07-18 | |||
| CN109986866A | 2019-07-09 | |||
| CN107645893A | 2018-01-30 | |||
| CN210630126U | 2020-05-26 | |||
| US20130167897A1 | 2013-07-04 |
Other References:
ZHANG YONG, LIU JIANYING: "Applications of Graphene in Heat Dissipation and Thermal Management", ELECTRONIC COMPONENTS AND MATERIALS, CHENGDU HONGMING DIANZHI GUFEN YOUXIAN GONGSI, CN, vol. 36, no. 9, 30 September 2017 (2017-09-30), CN , pages 88 - 93, XP055882977, ISSN: 1001-2028, DOI: 10.14106/j.cnki.1001-2028.2017.09.019
Attorney, Agent or Firm:
GUANGZHOU KEYUE I.P. LAW OFFICE (CN)
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