CN209101875U - A kind of graphene ceramic heat sink - Google Patents

Abstract

The utility model discloses a kind of graphene ceramic heat sink, including substrate, radiating fin with outward extension on the substrate, adjacent radiating fin will be formed with radiating groove, and the radiating fin includes high radiating fin and low heat emission fin.Compared to the prior art the utility model most has the advantages that heat dissipation effect much higher than common graphite alkene modified polymer material radiator, once sintered molding, technological forming is simple, the screw thread pillar lock screw of sintering can directly be passed through, stability of characteristics after sintering, it is fire-retardant, insulate, be easily assembled and lock, performance temperature is not influenced by environment such as extraneous ultraviolet lights, ceternally immutable.And color is white, it is beautiful, it is particularly suitable for open air use, there is very strong practical application value, be worthy of popularization.

Description

A kind of graphene ceramic heat sink

Technical field

The utility model belongs to heat sink technology field, specifically designs a kind of graphene ceramic heat sink.

Background technique

Graphene is widely used due to excellent property itself, and it is exactly one such for being applied to radiator.But It is that existing graphene radiator material is brittle, poor toughness is easily broken off after colliding with, and screw locking is easy sliding teeth, at present can only For non-bearing non-stress position inside finished product, and screw locking position needs pre-buried screw thread copper post, and it is numerous not only to increase technique Trivial, cost performance is low, and properties of product are unable to reach engineering service performance.In addition, high molecular material addition graphene is modified Although tens times of heating conduction increases, since high molecule plastic substrate heating conduction is low, only less than 1.0W/mK or so, institute Still there was only 20 W/mK or so with modified whole heat conduction and heat radiation effect, is far below same specification Aluminium Radiator；Third, high score Sub- plastics can only be outdoors black using aging under ultraviolet light, anti-flammability problem, and color is deposited, and see that lamp sees scape Town road influences beautiful.

Utility model content

The purpose of this utility model is to provide a kind of graphene ceramic heat sinks, to solve to propose in above-mentioned background technique The problem of.

To achieve the above object, the utility model provides the following technical solutions: a kind of graphene ceramic heat sink, including base Plate, radiating fin with outward extension on the substrate, adjacent radiating fin will be formed with radiating groove, the radiating fin Including high radiating fin and low heat emission fin；The high radiating fin and low heat emission fin are spaced；The high heat radiating fin The distance between piece and low heat emission fin are 5mm；The height of the high radiating fin is 12.5 ~ 25mm；The low heat emission fin Height is 10 ~ 20mm.

Preferably, the high radiating fin is in isosceles trapezoid.

Preferably, the low heat emission fin bottom width is 1 ~ 4mm；The low heat emission fin top width is 1 ~ 2mm.

Preferably, the substrate is made of high heat-conducting ceramic and graphene mixed sintering.

Preferably, the radiating fin is made of high heat-conducting ceramic and graphene mixed sintering.

Preferably, the radiating fin and the substrate are equipped with one layer of graphene thermal dispersant coatings.

Compared with prior art, the technical solution of the utility model has the advantage that the utility model graphene radiates Device, heat dissipation effect are much higher than common graphite alkene modified polymer material radiator, and once sintered molding, technological forming is simple, can With directly by the screw thread pillar lock screw of sintering, stability of characteristics after sintering is fire-retardant, insulate, be easily assembled and lock, performance temperature Degree is not influenced by environment such as extraneous ultraviolet lights, ceternally immutable.And color is white, it is beautiful, it is particularly suitable for open air use, tool There is very strong practical application value, is worthy of popularization.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It please refers to shown in attached drawing 1: a kind of graphene ceramic heat sink, including substrate 1, it is with outward extension on the substrate Radiating fin 2, adjacent radiating fin 2 will be formed with radiating groove 3, and the heat radiating fin 2 include high radiating fin 21 and low Radiating fin 22；The high radiating fin 21 and low heat emission fin 22 are spaced.

Further, the utility model is fabricated by modified ceramic material addition graphene, since graphene has Superpower heating conduction, single-layer graphene thermal coefficient 5000W/mK, and substrate ceramic itself is also highly heat-conductive material, the two Not only material thermal conductivity can achieve 200W/mK or so in conjunction with after, suitable with high thermal conductivity extrusion aluminium, compound considerably beyond modification Material radiator；Modified ceramic radiator true qualities are white, other colors can be added, than modified high-molecular radiator in product Appearance has a clear superiority；Modified graphene ceramic heat sink, stability of characteristics after sintering are fire-retardant, insulate, be easily assembled lock Attached, performance temperature is not influenced by environment such as extraneous ultraviolet lights, ceternally immutable.And the utility model is sinter molding, is not required to Carry out secondary operation.And be insulating materials, it is non-conductive, increase safety in utilization.

Other the utility model spreader surface is equipped with graphene thermal dispersant coatings, heat radiation device specific surface area and radiation Ability is conducive to heat dissipation effect and is promoted.

Specific 21 height of high heat radiating fin are 25mm, and 22 height of low heat emission fin is 12.5mm, two adjacent heat dissipations Fin spacing 5mm, the thickness root tail portion 2mm 1.2mm natural taper shrink molding, are made into circular cone in corresponding screw locking position Shape, root diameter (RD) 4mm, the direct 2mm in tail portion, natural taper shrink molding, this design is not only able to satisfy the fixed requirement of screw locking, And since conical surface product is larger, heat dissipation area can be increased, using radiator integral heat sink effect, radiating efficiency after use Up to 96.3%, good heat dissipation effect.

Simultaneously can be designed by national standard version modularity, can also be designed by other specification modularities, back side fin how much with Size according to actual design demand reasonable Arrangement, principle be using heat dissipation, using installation, using technological forming subject to.

Further the utility model graphene radiator, middle position are provided with threading hole, match waterproof connector, and electrical connection makes With.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (2)

1. a kind of graphene ceramic heat sink, it is characterised in that: including substrate, heat radiating fin with outward extension on the substrate Piece, adjacent radiating fin will be formed with radiating groove, and the radiating fin includes high radiating fin and low heat emission fin；It is described High radiating fin and low heat emission fin are spaced；The distance between the high radiating fin and low heat emission fin are 5mm；Institute The height for stating high radiating fin is 12.5 ~ 25mm；The low heat emission fin height is 10 ~ 20mm；The radiating fin and institute Substrate is stated equipped with one layer of graphene thermal dispersant coatings；The low heat emission fin bottom width is 1 ~ 4mm；Low heat emission fin top Portion's width is 1 ~ 2mm；Threading hole is equipped on the substrate between two parties；The threading hole is equipped with waterproof connector.

2. a kind of graphene ceramic heat sink according to claim 1, it is characterised in that the high radiating fin is in isosceles It is trapezoidal.