CN1967438B - Heat sink - Google Patents
Heat sink Download PDFInfo
- Publication number
- CN1967438B CN1967438B CN2005101015005A CN200510101500A CN1967438B CN 1967438 B CN1967438 B CN 1967438B CN 2005101015005 A CN2005101015005 A CN 2005101015005A CN 200510101500 A CN200510101500 A CN 200510101500A CN 1967438 B CN1967438 B CN 1967438B
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- fan
- heating radiator
- air
- radiator
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Abstract
A heat-radiating device comprises a heating-radiator, and the first-level fans inside it, and the second-level fans, and a shield-body covering the heating-radiator and the both-level fans. Air stream is generated by the said first-level fans, and enters the shield-body to boast to the heating-radiator, and the said second-level fans expel the air stream from the heating-radiator. In the invention, the air stream generated by the said first-level fans flow directly to the heating-radiator, and after the heat conduction between the air steam and the heating-radiator, the second-level fans expel the air steam in time from the heating-radiator, to quicken air circulation and enhance the heat conduction between the heating-radiator and the surrounding air.
Description
[technical field]
The present invention relates to a kind of heat abstractor, particularly a kind of heat abstractor that is used to distribute electronic component heat on the circuit board.
[background technology]
Along with computer industry constantly develops, electronic component (especially central processing unit) running frequency and speed constantly promote, and thermal value is increasing, if untimely eliminating, accumulation of heat causes that temperature raises, and influences the normal operation of heat-generating electronic elements.
Usually industry is installed heating radiator on circuit board, in order to being arranged on the electronic element radiating on the circuit board, often a fan is arranged on the top of heating radiator for the reinforcement radiating effect.This heating radiator comprises a base and by the some heat radiator that extend along this base, the air-flow that this fan produces during work directly blows to the bottom by the top of heat radiator, carries out heat interchange with heat radiator simultaneously.Air-flow is being heated along heat radiator heat owing to the absorption heat radiator in its bottom flow process, and gas velocity is more and more slower simultaneously, and flow is fewer and feweri, and heated air stream and heat radiator bottom have a narrow range of temperature, and the heat-sinking capability of heat radiator bottom dies down.Under the situation that does not have other cooling elements to assist, a large amount of heated air stream are stagnated in the heat radiator bottom and can't in time be discharged.The heat radiator bottom is not obvious with the heat exchange effect of surrounding air, and the radiating efficiency of entire radiator has much room for improvement.When especially dispelling the heat for heat-generating electronic elements on the video card, because video card narrow space of living in, the air quantity that fan can suck is less, and the situation that a large amount of heated air stream concentrate on the difficult discharge in heat radiator bottom is more outstanding.Therefore, be badly in need of a kind of heat abstractor that can fast the thermal current that concentrates on the heat radiator bottom be discharged rapidly.
[summary of the invention]
In view of this, be necessary to provide a kind of heat abstractor that can quicken heat radiator and surrounding air exchange heat.
A kind of heat abstractor comprises that a heating radiator and is arranged on first fan of heating radiator, also comprise one second fan and be covered with above-mentioned heating radiator and the cover body of two fans, above-mentioned first fan produces the air-flow that enters cover body and blow to heating radiator, above-mentioned second fan is discharged this heating radiator with air-flow, the part of this second fan be placed in above-mentioned heating radiator directly over, its another part exceeds heating radiator.
Compared to prior art, the air-flow that described first fan produces directly blows to heating radiator, this airflow passes heating radiator and with its heat interchange after, second fan is in time discharged heating radiator with air-flow, accelerates the air-flow circulation, strengthens the heat interchange of heating radiator and surrounding air.
With reference to the accompanying drawings, the invention will be further described in conjunction with the embodiments.
[description of drawings]
Fig. 1 is the three-dimensional combination figure of a heat abstractor of the present invention and a circuit board.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is the inversion synoptic diagram of cover body among Fig. 2.
Fig. 4 is along the sectional view of IV-IV line among Fig. 1.
[embodiment]
See also Fig. 1, heat abstractor of the present invention, in order to distribute the heat-generating electronic elements 12 on the circuit board 10, these circuit board 10 1 sides are provided with a location card, and this positioning cards is provided with a vent port 14.
As shown in Figures 2 and 3, this heat abstractor comprises a heating radiator 22, is arranged side by side first fan 24, second fan 26 and a cover body 30 in heating radiator 22 tops.This heating radiator 22 comprises that a base that directly contacts with heat-generating electronic elements 12 (figure does not show) reaches by the vertically extending some heat radiator 220 of base.This second fan 26 is an air exhauster, and its bottom has suction opeing (figure does not show), and a side of second fan 26 is provided with air outlet 260, and this air outlet 260 is over against above-mentioned vent port 14.This cover body 30 shrouds above-mentioned heating radiator 22 and two fans 24,26 in it.This cover body 30 comprise a body 32, a pair of along the vertically extending longer baffle plate 34 of body 32 dual-sides and be connected with baffle plate 34, perpendicular to body 32 than short shutter 36.This body is provided with one corresponding to the opening 320 of first fan 24 and corresponding to the circular hole 322 of second fan 26.These cover body 30 inside also are provided with a dividing plate 38, and these dividing plate 38 1 sides contact with body 32, and the edge of opposite side is provided with a breach 380 relatively.Aforementioned barriers 38 is divided into first chamber 340 and second chamber 342 with cover body 30 inside, and above-mentioned first chamber 340 is corresponding to opening 320 and hold first fan 24, and above-mentioned second chamber 342 is corresponding to circular hole 322 and hold second fan 26.Above-mentioned breach 380 is communicated with first chamber 340 and second chamber 342.
See also Fig. 4, during this heat abstractor work, the base that the heat that above-mentioned heat-generating electronic elements 12 produces reaches heating radiator 22 earlier passes to heat radiator 220 again, first fan 24 produces air-flow and blows to bottom (shown in the direction of arrow among the figure) by heat radiator 220 tops, carries out heat interchange with heat radiator 220 simultaneously.Mass air flow heats up because of heat absorption and concentrates on heat radiator 220 bottoms at this moment, under 26 effects of second fan, air communication is crossed breach 380 and is sucked second chamber 342 and enter second fan 26 from first chamber 340, blows to vent port 14 through air outlet 260, and final a large amount of thermal currents are discharged through vent port 14.
The thermal current that is stuck in heat radiator 220 bottoms in the heat abstractor of the present invention is in a large number in time discharged under 26 effects of second fan fast, quickening blows to heating radiator 22 than cold air once more by first fan 24, quicken heat radiator 220 and surrounding air exchange heat, improve the radiating efficiency of heating radiator 22.
Claims (5)
1. heat abstractor, comprise that a heating radiator and is arranged on first fan on the heating radiator, this heat abstractor also comprises one second fan and is covered with above-mentioned heating radiator and the cover body of two fans, above-mentioned first fan produces the air-flow that enters cover body and blow to heating radiator, above-mentioned second fan is discharged this heating radiator with this air-flow, it is characterized in that: above-mentioned cover body is provided with a body, extend two baffle plates along the relative dual-side of body, this baffle plate is arranged at the heating radiator dual-side, extend and interconnective another baffle plate of above-mentioned two baffle plates along another side of body, this another baffle plate is vertical with body, two baffle plates of above-mentioned cover body and another baffle plate all contact with a circuit board, be provided with a dividing plate that connects body and above-mentioned two baffle plates in the above-mentioned cover body, aforementioned barriers, two baffle plates, another baffle plate and circuit board surround first chamber jointly, aforementioned barriers, two baffle plates and circuit board surround second chamber jointly, aforementioned barriers one side contacts with body, the opposite side edge has a breach relatively, this breach is communicated with first chamber and second chamber, and the above-mentioned air-flow that enters first fan of cover body enters second chamber by first chamber through the breach of dividing plate.
2. heat abstractor as claimed in claim 1 is characterized in that: above-mentioned second fan is an air exhauster.
3. heat abstractor as claimed in claim 1 is characterized in that: above-mentioned second fan and first fan are arranged side by side at the heating radiator top.
4. heat abstractor as claimed in claim 1 is characterized in that: the corresponding first fan place of above-mentioned body is provided with an opening.
5. heat abstractor as claimed in claim 1, it is characterized in that: above-mentioned heating radiator contacts with the heat-generating electronic elements that is attached at a circuit board, this circuit board one side is provided with a location card, this positioning cards is provided with a vent port, above-mentioned second fan is provided with an air outlet, and this air outlet is over against vent port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101015005A CN1967438B (en) | 2005-11-16 | 2005-11-16 | Heat sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101015005A CN1967438B (en) | 2005-11-16 | 2005-11-16 | Heat sink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1967438A CN1967438A (en) | 2007-05-23 |
| CN1967438B true CN1967438B (en) | 2010-12-01 |
Family
ID=38076244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101015005A Expired - Fee Related CN1967438B (en) | 2005-11-16 | 2005-11-16 | Heat sink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1967438B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108702855A (en) * | 2017-12-19 | 2018-10-23 | 深圳市大疆创新科技有限公司 | A kind of radiator structure, remote control equipment, unmanned plane suit |
| CN111200901B (en) * | 2020-02-10 | 2021-04-23 | 永捷电子（始兴）有限公司 | Printed circuit board |
| CN113407015A (en) * | 2020-03-17 | 2021-09-17 | 辉达公司 | Ventilation axial fan for graphic processing unit |
| CN115988790B (en) * | 2022-11-14 | 2024-02-20 | 江苏联成开拓集团有限公司 | Intelligent driving domain controller shell |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577018Y (en) * | 2002-07-10 | 2003-10-01 | 林三原 | Double-layer independent air duct radiator |
| CN2604550Y (en) * | 2003-03-17 | 2004-02-25 | 微星科技股份有限公司 | heat sink |
| CN2685962Y (en) * | 2004-02-26 | 2005-03-16 | 吴南发 | Cooling device for CPU |
-
2005
- 2005-11-16 CN CN2005101015005A patent/CN1967438B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577018Y (en) * | 2002-07-10 | 2003-10-01 | 林三原 | Double-layer independent air duct radiator |
| CN2604550Y (en) * | 2003-03-17 | 2004-02-25 | 微星科技股份有限公司 | heat sink |
| CN2685962Y (en) * | 2004-02-26 | 2005-03-16 | 吴南发 | Cooling device for CPU |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1967438A (en) | 2007-05-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20131116 |