CN204160826U

CN204160826U - A kind of Novel heat-conducting material structure

Info

Publication number: CN204160826U
Application number: CN201420502516.1U
Authority: CN
Inventors: 王泽勇; 龙婷婷
Original assignee: SUZHOU ENBRIGHTECH Co Ltd
Current assignee: SUZHOU ENBRIGHTECH Co Ltd
Priority date: 2014-09-02
Filing date: 2014-09-02
Publication date: 2015-02-18
Anticipated expiration: 2024-09-02

Abstract

The utility model discloses a kind of Novel heat-conducting material structure, comprise three layers, ground floor is thermal dispersant coatings graphite, proportioning is the acrylic acid of the graphite powder of mass ratio 40%-60%, the Graphene of 0%-5%, ALN, 0%-5% of 10%-20%, the second layer is that metal base adopts Copper Foil or aluminium foil, third layer is foamed heat absorbing coating, and proportioning is the high-purity SIC powder of 0.3um of mass ratio 90%-95%, the Al of 0%-5% ₂o ₃, 0%-5% Y ₂o ₃.The thermal source of heat absorbing coating face of the present utility model directly and in backlight module is close to, can fast endothermic at short notice, and then be transmitted on thermal dispersant coatings by metal base, thermal dispersant coatings is again by the mode with air exchange heat and radiation, heat is distributed, owing to absorbing heat fast by heat absorbing coating, then conducted by metal base and thermal dispersant coatings, the speed of dispelling the heat than the mode of traditional use heat-conducting glue adhensive layer improves 2-3 doubly, the problem of heat radiation can better be solved, extend the life-span of lamp pearl and even whole module.

Description

A kind of Novel heat-conducting material structure

Technical field

The utility model belongs to Heat Conduction Material technical field, particularly relates to a kind of Novel heat-conducting material structure.

Background technology

Backlight module is widely used in the various display unit such as notebook, panel computer, TV, mobile phone, outdoor indoor advertisement machine, and display panels itself can not be luminous, needs backlight module to provide backlight to show for it.General backlight module, as the brightness provided for the backlight module of notebook computer, though enough supply user in indoor environment work, in outdoor environment, surround lighting then causes the deficiency of display unit brightness.Be applicable to open air for improving the producible brightness of display unit to make display unit, one of method is the light source density increasing backlight module; But the heat energy increasing light source density generation but may cause light source module temperature to raise to be affected the lamp pearl life-span or makes blooming piece be subject to warpage, or affects the rotation of liquid crystal molecule.

The heat sink material that existing backlight module uses is generally three-decker:

Ground floor: the heat-radiation coating bed of material (thermal conductivity factor 600-1500w/ (m.k))

The second layer: metal base (thermal conductivity factor 200-300w/ (m.k))

Third layer: heat-conducting glue adhensive layer (thermal conductivity factor 1.0-2.8w/ (m.k)).

Its defect is:

1) due to the restriction of the thermal conductivity factor of metal base own, the thermal conductivity factor of this heat sink material entirety is caused not reach the cooling requirements of modern highly integrated electronic device.

2) metal base uses the simple metal of sheet material, and manufacturing cost is high

Utility model content

The purpose of this utility model is to provide a kind of Novel heat-conducting material structure, be intended to solve the restriction of existing backlight module due to the thermal conductivity factor of metal base own, the thermal conductivity factor of heat sink material entirety is caused not reach the cooling requirements of modern highly integrated electronic device, metal base uses the simple metal of sheet material, the problem that manufacturing cost is high.

The utility model realizes like this, a kind of Novel heat-conducting material structure comprises three layers, ground floor is thermal dispersant coatings graphite, proportioning is the acrylic acid of the graphite powder of mass ratio 40%-60%, the Graphene of 0%-5%, ALN, 0%-5% of 10%-20%, the second layer is that metal base adopts Copper Foil or aluminium foil, third layer is foamed heat absorbing coating, and proportioning is the high-purity SIC powder of 0.3um of mass ratio 90%-95%, the Al of 0%-5% ₂o ₃, 0%-5% Y ₂o ₃.

Further, described foamed ceramics has good three-dimensional network connectivity structure, the guarantee of good air permeability, and foam aperture between 8-60ppi, can be beneficial to being uniformly distributed of air stream.

effect gathers

The thermal source of heat absorbing coating face of the present utility model directly and in backlight module is close to, can fast endothermic at short notice, and then be transmitted on thermal dispersant coatings by metal base, thermal dispersant coatings is again by the mode with air exchange heat and radiation, heat is distributed, owing to absorbing heat fast by heat absorbing coating, then conducted by metal base and thermal dispersant coatings, the speed of dispelling the heat than the mode of traditional use heat-conducting glue adhensive layer improves 2-3 doubly, the problem of heat radiation can better be solved, extend the life-span of lamp pearl and even whole module.

Accompanying drawing explanation

Fig. 1 is the structural representation of the Novel heat-conducting material structure that the utility model embodiment provides;

In figure: 1, thermal dispersant coatings graphite; 2, metal base; 3, heat absorbing coating.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.

Fig. 1 shows the structure of Novel heat-conducting material structure of the present utility model, as shown in the figure, the utility model realizes like this, a kind of Novel heat-conducting material structure comprises three layers, ground floor is thermal dispersant coatings graphite 1, proportioning is the acrylic acid of the graphite powder of mass ratio 40%-60%, the Graphene of 0%-5%, ALN, 0%-5% of 10%-20%, the second layer is that metal base 2 adopts Copper Foil or aluminium foil, third layer is foamed heat absorbing coating 3, and proportioning is the high-purity SIC powder of 0.3um of mass ratio 90%-95%, the Al of 0%-5% ₂o ₃, 0%-5% Y ₂o ₃.

By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that performing creative labour can make still within protection domain of the present utility model.

Claims

1. a Novel heat-conducting material structure, is characterized in that, described Novel heat-conducting material structure comprises three layers, and ground floor is thermal dispersant coatings graphite, and the second layer is that metal base adopts Copper Foil or aluminium foil, and third layer is foamed heat absorbing coating; Described foamed heat absorbing coating has good three-dimensional network connectivity structure, and foam aperture is between 8-60ppi.