CN100592856C

CN100592856C - Heat radiator

Info

Publication number: CN100592856C
Application number: CN200610060801A
Authority: CN
Inventors: 龙俊; 钟勇; 李皓
Original assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2006-05-26
Filing date: 2006-05-26
Publication date: 2010-02-24
Anticipated expiration: 2026-05-26
Also published as: CN101080157A

Abstract

This invention relates to a radiation device including a radiator with several radiation fins and a fan set on the radiator, in which, several runners are formed among the radiation fins, air flows generated by the fan flow into the runners, an air-leading strip closely surrounds the radiation fins to form a closed ring to stop gas flows to diffuse outside and guarantee that most of the gas flow generated by the fan is wafted to the region of heat source.

Description

Heat abstractor

Technical field

The present invention relates to a kind of heat abstractor, particularly a kind of heat abstractor with air ducting.

Background technology

Along with the quickening of the speed of service of electronic component in the integrated circuit, the heat of its generation is also more and more, and the normal fan combination radiator of using comes heat-generating electronic elements is dispelled the heat in the prior art.Heat abstractor 90 as shown in Figure 1, wherein a radiator 92 is fixed on the heat-generating electronic elements (figure does not show), one fan 96 is installed in downward blow flow on the radiator 92 by a fan Fixture 94, to continue to take away the heat that produces when electronic component is worked, these radiator 92 bottoms are owing to becoming the zone that thermal source is comparatively concentrated from heat-generating electronic elements is nearer, yet, since the radiating fin 922 of this radiator 92 to around disperse, make most of air-flow distribute from radiator 92 tops, and can't reach the bottom that thermal source is concentrated, influence the auxiliary heat dissipation effect of 96 pairs of radiators 92 of fan, make that also the performance of entire heat dissipation device 90 is limited; If the downward extension in fan Fixture 94 bottoms can be formed an air-guiding aisle, descending in order to draw air-flow in, improve radiating efficiency, but this structure is difficult to adapt to the radiator 92 of different size, its shared property is poor, and the cost height.

Summary of the invention

In view of this, be necessary in fact to provide a kind of be used for effectively to improve on the electronic component radiating efficiency, simple in structure, adaptability is strong, cost is low heat abstractor.

A kind of heat abstractor, comprise that a radiator and with some radiating fins places the fan on this radiator, be formed with some runners between radiating fin, the air flow stream that fan produces is gone in the runner, one wind-guiding band is close to and is centered around the peripheral closed-loop that forms of radiating fin, to outdiffusion, this wind-guiding carrying material is adhesive tape or cloth with barrier air.

Pass through to install a wind-guiding band in the above-mentioned heat abstractor, can guarantee that most of airflow blow that fan produces arrives the thermal source concentrated area, effectively utilized air-flow, the radiating efficiency of entire heat dissipation device is promoted, cost simple in structure is low, and can be according to the fansink designs wind-guiding band of different size, adaptability is strong.

The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.

Description of drawings

Fig. 1 is the three-dimensional assembly diagram of a heat abstractor in the prior art.

Fig. 2 is the three-dimensional exploded view of heat abstractor one embodiment of the present invention.

Fig. 3 is the three-dimensional assembly diagram of heat abstractor one embodiment of the present invention.

Embodiment

Please refer to Fig. 2 and Fig. 3, the heat abstractor 100 of one embodiment of the invention mainly comprises a radiator 10, a fan 20, a fan Fixture 30 and a wind-guiding band 40.

This radiator 10 comprises that a cylindrical center body 110 and some outer peripheral face one from this central body 110 outwards are the radiating fin 120 of radiation bending extension, each radiating fin 120 comprise one directly therefrom heart body 110 extend the main part 122 that forms and from these main part 122 terminal extended two branching portions 125 of outside bifurcateds that continue.Each radiating fin 120 space is to form some runners 130, and these radiating fin 120 development lengths are identical, thereby makes entire radiator 10 cylindrical outward appearances, and it highly is h.One fastener 15 is installed in the bottom of radiating fin 120, in order to radiator 10 is fixed on the heat-generating electronic elements (figure does not show).

This fan 20 is installed on the radiator 10 by fan Fixture 30, and this fan 20 comprises a square framework 24, and these square framework 24 each corners respectively are provided with a location hole 26, one metal guards 28 and cover at fan 20 tops, are used for safe isolation.

This fan Fixture 30 comprises an annular framework 32, this framework 32 is buckled in radiating fin 120 top periphery by the centre bore 34 that it surrounds, extend outward four lugs 36 from framework 32 outer peripheral face top, this four lug 36 mutually evenly at interval, its with fan 20 corresponding four jiaos corresponding, each lug 36 is provided with a trip 362 and the alignment pin 364 through corresponding location hole 26 that is used for edge, buckle fan 20 corresponding corner, and this fan Fixture 30 is realized and the combining of fan 20 by trip 362 and alignment pin 364.

This wind-guiding band 40 is a continuous ring belt, can make by adhesive tape, elastoplast, sheet metal or cloth, this wind-guiding band 40 is close to be centered around and is adjoined framework 32 bottom margin places on radiating fin 120 outer peripheral faces and form a closed-loop, fan Fixture 30 is close in these wind-guiding band 40 upper ends, the width b of this wind-guiding band 40 designs according to different radiating fin 120 height h, can adapt to the radiating fin 120 of difformity size, so that reach best radiating effect.

During heat abstractor 100 work, the air-flow that is produced by fan 20 is blown into from the top of radiator 10, because stopping of wind-guiding band 40, air-flow can't be dispersed around direction on the radiating fin 120, and can only conduct downwards along runner 126, guarantee that thus most of air-flow is blown into radiating fin 120 lower zones that thermal source is concentrated, effectively utilized air-flow, thereby improve the radiating efficiency of entire heat dissipation device 100.Through test, under the same conditions, the heat abstractor 100 that wind-guiding band 40 has been installed with install before compare, its radiating effect obviously promotes, and can adjust the width b of wind-guiding band 40 optimums at the radiating fin 120 of difformity size, adaptability is strong.

Claims

1. heat abstractor, comprise that a radiator and with some radiating fins places the fan on this radiator, be formed with some runners between radiating fin, the air flow stream that fan produces is gone in the runner, it is characterized in that: a wind-guiding band is close to and is centered around the peripheral closed-loop that forms of radiating fin, to outdiffusion, this wind-guiding carrying material is adhesive tape or cloth with barrier air.

2. heat abstractor as claimed in claim 1 is characterized in that: described radiator also comprises a cylindrical center body, and described radiating fin extends from this central body outer peripheral face one, and its extending end forms a face of cylinder.

3. heat abstractor as claimed in claim 2 is characterized in that: described radiating fin comprises that a direct therefrom heart body extends the main part that forms and reaches from terminal extended two branching portions of outside bifurcated that continue of this main part.

4. heat abstractor as claimed in claim 2 is characterized in that: described wind-guiding band is a closed circular endless belt.

5. heat abstractor as claimed in claim 1 is characterized in that: described heat abstractor also comprises a fan Fixture, and this fan Fixture is buckled in the radiating fin top.

6. heat abstractor as claimed in claim 5 is characterized in that: one is extended some lugs on the outer peripheral face of this fan Fixture certainly, and this fan is fixed on the fan Fixture by these lugs.

7. heat abstractor as claimed in claim 5 is characterized in that: this fan Fixture bottom edge is close in above-mentioned wind-guiding band upper end.

8. heat abstractor as claimed in claim 1 is characterized in that: described heat abstractor comprises that also one is arranged on the fastener of radiator bottom, and this heat abstractor is installed on the heat-generating electronic elements by this fastener.

9. heat abstractor as claimed in claim 1 is characterized in that: this fan comprises that one covers at the metal guard at its top, is used for safe isolation.