CN206564247U - A kind of new ceramics heat abstractor - Google Patents

Abstract

The utility model provides a kind of new ceramics heat abstractor, including pedestal and fins group；Pedestal is provided with least one fins group；Fins group is made up of multiple fins being vertically arranged；Multiple fin formation pyramids；Pedestal and fin are made of ceramic materials.The novel radiating device that the utility model is provided constitutes pyramidal fins group by being set on pedestal by multiple fins of different shapes, in semiconductor and LED technology, is used as heat abstractor, and area of dissipation is big, good heat conductivity, light weight.

Description

A kind of new ceramics heat abstractor

Technical field

The utility model embodiment is related to radiator field, more particularly to a kind of new ceramics heat abstractor.

Background technology

The structure of heat abstractor can be divided into Two part of pedestal and radiating fin, and its function is heat conduction and radiating.It is most common Heat abstractor be metal material, such as copper or aluminium, the heat abstractor of metal material it is general with punching press, almag squeeze Pressure into The modes such as type, electro-discharge machining are manufactured, and because the mechanical strength of these aluminium or copper system metal is not high, the thickness of radiating fin just can not It is too thin, while in order to obtain enough area of dissipations, the area of radiating fin must be very big, therefore the volume phase of metal cooling device When huge.On the other hand, the pedestal of metal cooling device and radiating fin can be because San Hot Wind fan the windage that air-flow is caused And electrostatic is produced, the electrostatic of accumulation is easily destroyed neighbouring sensitive electron part, and such case becomes apparent in dry environments, In addition, the dust adsorption in air can be also deposited on radiating fin by the electrostatic on radiating fin, the dirt of operating environment is caused Dye source or reduction radiating effect.

To avoid the variety of problems of metal cooling device, just have tried to apply ceramic material on heat abstractor, example Such as first it is coated with one layer of following layer or glue layer on metal base and radiating fin, then by the ceramic powder with high heat conduction characteristic Last spray attachment is coated on metal base and radiating fin.Although the metal cooling device of this coating ceramic powder can be avoided The influence that electrostatic is caused, but still have the shortcomings that metal cooling device is bulky, and it is hot swollen due to metal and ceramics Swollen coefficient is different, after temperature rise, and ceramic powders just easily drop because of the expansion modification of metal material.

Utility model content

To solve the above problems, the utility model provides a kind of new ceramics heat abstractor, including pedestal and fins group；

The pedestal is provided with least one described fins group；The fins group is made up of multiple fins being vertically arranged； The height of multiple fins is different；Multiple fin formation pyramids；The pedestal and the fin are by ceramic material Material is made.

Further, the fin is shaped as quadrangle, and top is inclined plane.

Further, the two sides of the fin are uneven surface.

Further, the cross section on the uneven surface is by multiple triangles, square or semicircular wherein one Plant composition.

Further, the pedestal and the fins group are formed in one.

Further, the thickness of the fin is not more than 200 μm；Spacing between the fin and fin is not more than 100 μ m。

Further, the pedestal and the fin are made up of a kind of material in aluminium nitride, carborundum or silicon nitride.

The novel radiating device that the utility model is provided is made up of by being set on pedestal multiple fins of different shapes Pyramidal fins group, in semiconductor and LED technology, is used as heat abstractor, and area of dissipation is big, good heat conductivity, Light weight.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are Some embodiments of the present utility model, for those of ordinary skill in the art, are not paying the premise of creative labor Under, other accompanying drawings can also be obtained according to these accompanying drawings.

The novel radiating device structural representation that Fig. 1 provides for the utility model；

Fig. 2 is fin group construction schematic diagram in Fig. 1；

Fig. 3 is fin preferred embodiment structural representation.

Reference：

The fin of 10 pedestal, 20 fins group 21

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to The scope of the utility model protection.

The novel radiating device structural representation that Fig. 1 provides for the utility model, as shown in Figure 1：New ceramics radiating dress Put, including pedestal 10 and fins group 20；The pedestal 10 is provided with least one described fins group 20；The fins group 20 is by more The individual fin 21 being vertically arranged is constituted；The height of multiple fins 21 is different；The multiple formation of the fin 21 pyramids；Institute State pedestal 10 and the fin 21 is made of ceramic materials.

Preferably, the fin 21 is shaped as quadrangle, and top is inclined plane.

When it is implemented, as shown in Figure 2：Fins group 20 is made up of multiple fins 21, the fin in the end of fins group 20 21 height are minimum；Set in the middle of toward fins group 20, the height of fin 21 gradually increases；Fin in the middle both sides of fin 21 21 is mutually symmetrical.The top of fin 21 is inclined plane, and the inclined plane at the top of fin 21 makes the formation pyramid of fins group 20, i.e., Taper.The highly different radiating effects of fin 21 is than the highly consistent good heat dissipation effect of fin 21.

The novel radiating device that the utility model is provided is made up of by being set on pedestal multiple fins of different shapes Pyramidal fins group, these fins have fine construction, in appearance such as feather, can reach small volume but radiating The big purpose of area.In semiconductor and LED technology, used as heat abstractor, area of dissipation is big, good heat conductivity, quality Gently.

Preferably, the two sides of the fin 21 are uneven surface.

When it is implemented, as shown in Figure 3：Fin 21 in the horizontal direction be provided with uneven surface so that fin 21 dissipate Hot area is bigger.It is preferred that the cross section on uneven surface is by multiple triangles, square or semicircular one of which group Into.

It is preferred that the pedestal 10 and the fins group 20 are formed in one.

When it is implemented, pedestal 10 and the use of fins group 20 are integrally formed mode and are processed, and it is convenient for production, after production, It can be used, it is easy for installation when heat abstractor is installed on into the electronic components such as semiconductor or LED.

Preferably, the thickness of the fin 21 is not more than 200 μm；Spacing between the fin 21 and fin 21 is not more than 100μm。

Preferably, the pedestal 10 and the fin 21 are by a kind of material system in aluminium nitride, carborundum or silicon nitride Into.

When it is implemented, the mechanical strength of aluminium nitride, three kinds of ceramic materials of carborundum or silicon nitride is close to steel, heat conduction Coefficient and aluminium and copper are close, and thermal coefficient of expansion is low, will not be ruptured when rapidly heating up or cooling, while will not cause contact surface Modification.On the other hand, these three ceramic materials are the good insulator of electricity and have stable chemical and physical properties, no Electrostatic can be produced because of windage, therefore without absorption dust or accumulates the problems such as electrostatic causes damage nearby electron part.

Although more herein used such as pedestal, fins group, the term such as fin is not precluded from using other arts The possibility of language.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；They are solved Any additional limitation is interpreted into all to disagree with the utility model spirit.

Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims (7)

1. a kind of new ceramics heat abstractor, it is characterised in that：Including pedestal (10) and fins group (20)；

The pedestal (10) is provided with least one described fins group (20)；The fins group (20) is by multiple fins being vertically arranged Piece (21) is constituted；The height of multiple fins (21) is different；Multiple fins (21) form pyramid；The pedestal (10) it is made of ceramic materials with the fin (21).

2. new ceramics heat abstractor according to claim 1, it is characterised in that：The fin (21) is shaped as four sides Shape, top is inclined plane.

3. new ceramics heat abstractor according to claim 1, it is characterised in that：The two sides of the fin (21) are recessed Convex not flat surface.

4. new ceramics heat abstractor according to claim 3, it is characterised in that：The cross section on the uneven surface By multiple triangles, square or semicircular one of which composition.

5. new ceramics heat abstractor according to claim 1, it is characterised in that：The pedestal (10) and the fins group (20) it is formed in one.

6. new ceramics heat abstractor according to claim 1, it is characterised in that：The thickness of the fin (21) is not more than 200μm；Spacing between the fin (21) and fin (21) is not more than 100 μm.

7. new ceramics heat abstractor according to claim 1, it is characterised in that：The pedestal (10) and the fin (21) it is made up of a kind of material in aluminium nitride, carborundum or silicon nitride.