CN2867590Y

CN2867590Y - Radiating device

Info

Publication number: CN2867590Y
Application number: CN 200520130043
Authority: CN
Inventors: 林世仁; 庄馥荫
Original assignee: KESHENG TECHNOLOGY CO LTD
Current assignee: KESHENG TECHNOLOGY CO LTD
Priority date: 2005-11-02
Filing date: 2005-11-02
Publication date: 2007-02-07
Anticipated expiration: 2015-11-02

Abstract

A heat dissipation device is provided. A contact surface is disposed at the bottom of the heat collection pedestal of the radiation fin and used for supporting the surface of the heating component, a plurality of radialized fins are disposed above the heat collection pedestal, the fan is fixed on one side of the radiation fin, the fan leaf of the fan is just toward to the fin of the radiation fin, so that an included angle is formed between the extension direction of the fin of the radiation fin and the inverse direction of the fan leaf rotation direction. When the fan blows cold blast to the radiation fin, the cold blast can be centralized at the center of the heat collection pedestal, and the cold blast pressure can be increased. So that the heat source of the fins can be removed in one time, thereby achieving uniform heat dissipation of pins, centralized blast pressure and long blast distance.

Description

Heat abstractor

Technical field:

The utility model relates to a kind of heat abstractor, relate in particular to a kind of heat build-up pedestal that utilizes to being affixed on the heat generating component surface, and by the rapid uniform heat conduction of fin, the bearing of trend that sees through the fin of heat build-up pedestal again tilts to be an angle for the direction of rotation against flabellum, and then reaches fin Homogeneouslly-radiating, the concentrated blowing distance that reaches of blast.

Background technology:

Along with high-tech flourish, the volume of electronic building brick is tending towards microminiaturization, and the closeness on the unit are is also more and more high, its usefulness constantly strengthens especially, under these factors, the gross calorific power of electronic building brick then almost raises year by year, do not get rid of the heat that electronic building brick produces if there is good radiating mode, these too high temperature will cause electronic building brick to produce that electronics is free to cause whole stability to reduce with phenomenon such as thermal stress, and the life-span that shortens electronic building brick itself, therefore how to get rid of these heats to avoid the overheated of electronic building brick, be always can not be ignored problem.

Because personal computer has been popularized in the society in modern times, and the life cycle in computer generations is shorter, central processing unit (CPU) mortality also and then raises, and the usefulness of central processing unit increases, processing speed is faster, the relative heat that it gave off also constantly increases, and under the too not big variation of the surface area of central processing unit, the working temperature of central processing unit is about about 60-95 ℃ at present, with this situation continued development, the wattage of heating will continue to raise, if there is not perfect heat abstractor, will have a strong impact on the normal operation of central processing unit, be considerable work so how to improve the heat dissipation of radiator; Yet, under the ordering about of above-mentioned various reasons, the nuance of its fin, promptly can directly influence the radiating efficiency of fin, as shown in Figure 8, three-dimensional structure diagram for prior art, find out by knowing among the figure, its fin A is upwards stood by bottom substrate A1 the fin of plural number A2, and fan B promptly is installed in the upper surface of fin A2, yet when fan B rotates transmission cold wind, its cooling air is that basipetal mode blows to bottom substrate A1 surface and dispelled the heat, continuous by the heat dissipation channel A3 between fin A2 hot blast is distributed to around, yet, with this structural design, its stacking mode can make whole height increase, and the chip C1 that circuit board C goes up also can't directly obtain blowing of cooling air, after thermal source is entered by bottom substrate A1, can fast thermal source be transmitted towards top fin A2, blow down via cooling air again, but, general fan B rotates by flabellum B1 to form ventilation state, therefore make the central point of fan B be not calm be exactly that wind-force is faint, very easily form the dead angle of heat radiation, with the bottom substrate A1 of fin A, because hot focus effect, often bottom substrate A1 center is exactly the highest place of heat energy, makes that so the radiating effect of fin integral body is not high, will cause chip C overheated so that computer down even data damage.

The utility model content:

Main purpose of the present utility model is: heat build-up pedestal side is provided with fan, the bearing of trend of the fin of its heat build-up pedestal tilts to be an angle for the direction of rotation against flabellum, the fan that sees through the pedestal side blows cold wind, making cold wind concentrate on heat build-up pedestal center is dispelled the heat, the blast of the cold wind that fan blows out is increased, can once the thermal source of fin be got rid of, and be aided with the fin outer rim that wind scooper coats the heat build-up pedestal, can form an air circulation to stream mode, to reach the fin Homogeneouslly-radiating, prevent that cold wind from overflowing, blast is concentrated the effect that reaches the blowing distance.

The utility model is achieved in that a kind of heat abstractor, includes fin and fan is formed; Wherein: this fin is for having a heat build-up pedestal, and is provided with and can supports the contact-making surface that pastes for default heat generating component surface in the heat build-up base bottom, and heat build-up pedestal top then is provided with plural radial fin; This fan is for being arranged on fin one side, and the flabellum of fan is the fin place that is right against fin, makes the bearing of trend of the fin of fin tilt to be an angle for the direction of rotation against flabellum.Wherein the fin outer rim of fin is for further being coated with wind scooper, and wind scooper two sides then have opening respectively and are provided with fixing for fan.This fin top one side is extended with the bifurcated sheet in addition, and the bifurcated sheet angle that can tilt against the direction of rotation of flabellum.These fin two sides can be provided with fan simultaneously.This fin can be good and material light weight of aluminium, copper, aluminium copper or conductive coefficient and constitutes.The electronic building brick that this heat generating component can be chip, adapter chip, central processing unit or tool heating effect constitutes.Can further be provided with the preferable heat-conducting block of conductive coefficient in the heat build-up pedestal of this fin.This heat-conducting block can be good and material light weight of aluminium, copper, aluminium copper or conductive coefficient and constitutes.Described this heat build-up base bottom is for can be further combined with there being heat-conducting seat, and the contact-making surface of heat-conducting seat bottom is for to contact with heat generating component, and is embedded with heat pipe between heat build-up pedestal and heat-conducting seat.

Advantage of the present utility model is: the utility model is a kind of heat abstractor, heat build-up base bottom at fin is provided with and can supports the contact-making surface that pastes for the heat generating component surface, and above the heat build-up pedestal, be provided with plural radial fin, fan then is fixed on fin one side, and the flabellum of fan is the fin place that is right against fin, make the bearing of trend of the fin of fin tilt to be an angle for direction of rotation against flabellum, when fan blows cold wind to fin, cold wind is concentrated toward heat build-up pedestal center, the blast of the cold wind that fan blows out is increased, can once the thermal source of fin be got rid of, and then be reached the fin Homogeneouslly-radiating, blast is concentrated the effect that reaches the blowing distance.

Description of drawings:

Fig. 1 is a stereochemical structure exploded view of the present utility model.

Fig. 2 is the local constitutional diagram of stereochemical structure of the present utility model.

Fig. 3 is a stereochemical structure outside drawing of the present utility model.

Fig. 4 is the utility model side-looking section of structure in use.

Fig. 5 is the side-looking section of structure of another preferred embodiment of the present utility model.

Fig. 6 is the three-dimensional structure diagram of a preferred embodiment more of the present utility model.

Fig. 7 is the stereochemical structure exploded view of another preferred embodiment of the present utility model.

Fig. 8 is the three-dimensional structure diagram of the utility model prior art.

Embodiment:

Shown in Fig. 1-4, be stereochemical structure exploded view of the present utility model, three-dimensional partial structurtes constitutional diagram, three-dimensional structure diagram and side-looking section of structure in use, find out that by knowing among the figure heat abstractor of the present utility model includes fin 1 and fan 2 is formed; Wherein: this fin 1 is for having a heat build-up pedestal 11, and be provided with in heat build-up pedestal 11 bottoms and can support the contact-making surfaces 111 that paste for heat generating component 4 surfaces, heat build-up pedestal 11 tops then are provided with plural radial fin 12, and fin 12 is an angle of inclination, and be formed with gap 121 12 of adjacent fins, and fin 12 tops one side is extended with bifurcated sheet 122 in addition, and makes bifurcated sheet 121 be bent with an angle.This fan 2 is for being arranged on fin 1 one sides, and the flabellum 21 of fan 2 is for being right against fin 12 places of fin 1.By above-mentioned member in group during structure, earlier fan 2 is arranged on fin 1 one sides, and make the bearing of trend of the fin 12 of fin 1 be the angle that tilts of the direction of rotation against the flabellum 21 of fan 2, and then make fin 12 and flabellum 21 form an angle, fin 12 outer rims at fin 1 further are coated with wind scooper 3 again, and wind scooper 3 two sides are for having opening 31 respectively, but a wherein side opening 31 places of wind scooper 3 then air feed fan 2 be provided with fixing.The utility model in use, elder generation closely overlays the contact-making surface 111 of the heat build-up pedestal 11 of fin 1 mutually with heat generating component 4 surfaces, its fin 1 can be good and material light weight of aluminium, copper, aluminium copper or conductive coefficient and constitutes, the electronic building brick that heat generating component 4 then can be chip, adapter chip, central processing unit or tool heating effect constitutes, wind scooper 3 can be coated on fin 12 outer rims of fin 1, and make fan 2 be arranged on the side of fin 1, and the direction of rotation of the flabellum 21 of fan 2 is formed with angle for the incline direction with fin 12.When heat generating component 4 at adstante febre, the contact-making surface 111 of its heat build-up pedestal 11 can and conduct to fin 12 places with the thermal source fast Absorption, when fan 2 blowed cold wind, the blast position of its flabellum 21 rotations just in time can be over against 121 places, gap and heat build-up pedestal 1 bottom of fin 12.Can directly blow cold wind between heat build-up pedestal 1 and the heat generating component 4, in addition, flabellum 21 is formation dislocation wind-guiding with fin 12, make cold wind towards heat build-up pedestal 1 assemble and in the gap 121 places flow and dispelled the heat, and the bifurcated sheet 122 of fin 12 is mainly at concentrated blast, because of fin 12 is radially, so the gap 121 of fin 12 is by the interior flaring shape that is outward, and make cold wind distribute easily at 121 places, gap of broad, so needing to see through being provided with of bifurcated sheet 122 concentrates cold wind toward heat build-up pedestal 1 center, so that the blast of the cold wind that fan 3 is blown out increases, also increase the area of dissipation of fin 12, and simultaneously prevent that by wind scooper 3 cold wind from outwards overflowing and distribute in 12 places in the gap, just can increase and distinguished and admirablely again the thermal source of fin 12 be got rid of, and then reach the effective Homogeneouslly-radiating of fin, prevent that cold wind from overflowing, blast is concentrated the effect that reaches the blowing distance.

As shown in Figure 5, it is the side-looking section of structure of another preferred embodiment of the present utility model, can find out by knowing among the figure, can further be provided with heat-conducting block 13 in the heat build-up pedestal 11 of fin 1 of the present utility model, its heat-conducting block 13 can be aluminium, copper, the material (as heat pipe or plume etc.) of the good and light weight of aluminium copper or conductive coefficient formation, can avoid because of fin 1 overweight, so that heat generating component 4 can't bear the weight of fin 1 and damage, seeing through heat-conducting block 13 can make the thermal source fast Absorption and conduct in the fin 12, allow fin 12 uniform heat conduction, make thermal source can not hoard always, and then improve whole radiating effect in heat build-up pedestal 11 bottoms.The demand that visual user is set of above-mentioned heat-conducting block 13 or the difference of design and be provided with one or more, and heat-conducting block 13 can be set directly at heat build-up pedestal 11 bottoms or central authorities, only need make heat build-up pedestal 11 and heat-conducting block 13 made for unlike material, simple and easy modification of this kind and equivalent structure change.

As shown in Figure 6, it is the three-dimensional structure diagram of a preferred embodiment more of the present utility model, can find out by knowing among the figure, fan 2 of the present utility model also can be arranged on fin 1 dual side-edge simultaneously, and one of them fan 2 is for utilizing the mode of blowing, another fan 2 then utilizes the exhausting mode, when blowing blows cold wind when fin 12 is dispelled the heat at fan 2, the fan 2 of its exhausting also can be drawn to the external world with the hot blast of heat radiation back, this kind structural design, for the fan 2 that only makes fin 1 two sides carries out the air circulation heat loss through convection easily in wind scooper 3, and then strengthen the cross-ventilation effect.

As shown in Figure 7, it is the stereochemical structure exploded view of another preferred embodiment of the present utility model, can find out by knowing among the figure, heat build-up pedestal of the present utility model 11 bottoms are can be further combined with heat-conducting seat 5 is arranged, and contact-making surface 51 areas of heat-conducting seat 5 bottoms are for to conform to heat generating component 4, and between heat build-up pedestal 11 and heat-conducting seat 5, be embedded with heat pipe 52, and heat pipe 52 length are identical with heat build-up pedestal 11 length, so, when heat generating component 4 at adstante febre, its heat-conducting seat 5 can and conduct in the heat pipe 52 the thermal source fast Absorption, utilize heat pipe 5 that thermal source is on average conducted to heat build-up pedestal 11 lower surface, allow heat build-up pedestal 11 thermally equivalents, then again thermal source is on average conducted to fin 12 places, and then make thermal source can not hoard specific location at heat build-up pedestal 11 always, and then can improve the radiating effect of integral body, above-mentioned heat pipe 52 can be according to the shape of fin 1, size is bent to wind scooper 3 places, or be bent to the intersection end face of heat build-up pedestal 11 and fin 12, for only making heat pipe 52 thermal source is conducted to the temperature lower.

Claims

1. heat abstractor, be made up of fin and fan: it is characterized in that: this fin has a heat build-up pedestal, and is provided with and can supports the contact-making surface that pastes for default heat generating component surface in the heat build-up base bottom, and heat build-up pedestal top is provided with plural radial fin; And this fan is arranged on fin one side, and the flabellum of fan is the fin place that is right against fin, makes the bearing of trend of the fin of fin tilt to be an angle for the direction of rotation against flabellum.

2. heat abstractor as claimed in claim 1 is characterized in that: the fin outer rim of its fin further is coated with wind scooper, is provided with fixing for fan and wind scooper two sides have opening respectively.

3. heat abstractor as claimed in claim 1 is characterized in that: its this fin top one side is extended with the bifurcated sheet in addition, and the bifurcated sheet angle that can tilt against the direction of rotation of flabellum.

4. heat abstractor as claimed in claim 1 is characterized in that: its these fin two sides are provided with fan simultaneously.

5. heat abstractor as claimed in claim 1 is characterized in that: its this fin is constituted by the material of aluminium, copper, aluminium copper.

6. heat abstractor as claimed in claim 1 is characterized in that: its this heat generating component is constituted by the electronic building brick of chip, adapter chip, central processing unit or tool heating effect.

7. heat abstractor as claimed in claim 1 is characterized in that: further be provided with the preferable heat-conducting block of conductive coefficient in the heat build-up pedestal of its this fin.

8. heat abstractor as claimed in claim 7 is characterized in that: its this heat-conducting block is constituted by the material of aluminium, copper, aluminium copper.

9. heat abstractor as claimed in claim 1 is characterized in that: its this heat build-up base bottom can be further combined with there being heat-conducting seat, and the contact-making surface of heat-conducting seat bottom is for to contact with heat generating component, and be embedded with heat pipe between heat build-up pedestal and heat-conducting seat.