CN101166406B - Fin group and heat radiation device with fin group - Google Patents
Fin group and heat radiation device with fin group Download PDFInfo
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- CN101166406B CN101166406B CN2006100631841A CN200610063184A CN101166406B CN 101166406 B CN101166406 B CN 101166406B CN 2006100631841 A CN2006100631841 A CN 2006100631841A CN 200610063184 A CN200610063184 A CN 200610063184A CN 101166406 B CN101166406 B CN 101166406B
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- fin
- fins group
- diversion division
- heat abstractor
- fins
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Abstract
The fin set includes thermal fins. The fin set includes first part, second part, and third part setup between first part and second part. Both of fins of first part and fins of second part include a main body part and a diversion part; third part of thermal fins includes a main body part, but does not include a diversion part. The diversion part of fins of first part and the main body part are located at same plane. The diversion part of fins of second part is inclined from the main body part to first part of fin set. The invention also discloses a heat sink combining the said fin set with a centrifugal fan in order to make cooling blast enter into fin set smoothly and swimmingly so as to reduce flow resistance of airflow and system noise.
Description
Technical field
The present invention relates to the electronic element radiating field, particularly about a kind of fins group of heat-generating electronic elements and heat abstractor of being applicable to this fins group.
Background technology
Along with improving constantly of central processing unit electronic devices and components power such as (CPU), heat dissipation problem more and more is subject to people's attention, all the more so in notebook computer (Notebook computer), in order in limited space, to take away the heat that system produces efficiently, industry mainly adopts the heat abstractor of being made up of fins group, heat pipe and fan at present, existing fins group generally includes some fin that be arranged in parallel, and each fin is arranged in a rectangle at the air outlet place of fan.During work, heat pipe absorbs the heat that heat-generating electronic elements produces, these heats are passed to fins group by heat pipe, and the heat of fins group then is distributed in the surrounding environment via the heat exchange between the forced draft of fins group and fan generation, realizes the heat radiation to electronic component.
In this heat radiation process, fan plays the important function of heat transferred outside system that system is produced, and the flow direction of the air-flow that the orientation of fins group and this fan produce has certain included angle, and the angle between each fin and this air-flow is also inequality, during the airflow passes fin, produce bump and bounce-back with fin, increase system noise and cause the flowed energy loss, cause the flow velocity of air-flow to reduce, the heat exchanger effectiveness of air-flow and fin and the utilance of air-flow descend, and finally influence the radiating efficiency of this heat abstractor.Therefore, the collocation of fan and fins group uses the performance to system that very large influence is arranged, and how to make both use of effectively arranging in pairs or groups, and then the heat exchanger effectiveness between raising fan and the fins group and reduce the fan flow resistance and noise just seems particularly important.
Summary of the invention
It is higher and can reach and reduce flow resistance and the fins group of noise and the heat abstractor with this fins group to the purpose of this invention is to provide a kind of radiating efficiency.
A kind of fins group, comprise some fin, this fins group comprises first, second portion and be located at first and second portion between third part, the fin of this first and second portion includes a body and a diversion division, the fin of this third part comprises a body but does not have diversion division, the diversion division of the fin of this first and body are positioned at same plane, the diversion division of the fin of second portion tilts to the first of fins group from body, the first of this fins group, the body equal and opposite in direction of the fin of second portion and third part, the diversion division equal and opposite in direction of the first of this fins group and the fin of second portion.
A kind of heat abstractor, comprise at least one heat pipe, with at least one fins group of this heat pipe thermo-contact and be used to produce cooling blast carries out forced heat radiation to this fins group a centrifugal fan, this fins group comprises some fin, this fins group comprises first, second portion and be located at first and second portion between third part, the fin of this first and second portion includes a body and a diversion division, the fin of this third part comprises a body but does not have diversion division, the diversion division of the fin of this first and body are positioned at same plane, the diversion division of the fin of second portion tilts to the first of fins group from body, the first of this fins group, the body equal and opposite in direction of the fin of second portion and third part, the diversion division equal and opposite in direction of the first of this fins group and the fin of second portion.
A kind of heat abstractor, be used to distribute the heat that electronic component produces, comprise a centrifugal fan and be located at the fins group at the air outlet place of centrifugal fan, this centrifugal fan produces cooling blast this fins group is carried out forced heat radiation, this fins group comprises some fin, comprise the first that is positioned at the air-flow front end and be positioned at the second portion of air-flow rear end along this fins group of airflow direction, the fin of this first and second portion includes a body and is positioned at a diversion division of body front end, wherein the diversion division of the fin of this first and its body are positioned at same plane, the diversion division of the fin of second portion tilts to the first of fins group from its body, the body equal and opposite in direction of the first of this fins group and the fin of second portion, the diversion division equal and opposite in direction of the first of this fins group and the fin of second portion.
Compared with prior art, setting by this diversion division and this body, make the flow direction transition gently of cooling blast, reduce the flow resistance and the noise of this fins group and increase the area of dissipation of this fins group, thereby make this heat abstractor have advantage of higher cooling efficiency.
Description of drawings
Be further described in conjunction with the embodiments with reference to the accompanying drawings:
Fig. 1 is the wherein three-dimensional exploded view of an embodiment of heat abstractor of the present invention;
Fig. 2 is the assembly drawing of heat abstractor among Fig. 1;
Fig. 3 is the stereogram of first fins group of heat abstractor among Fig. 1;
Fig. 4 removes behind the top board stereogram with fins group for the radiator fan of heat abstractor among Fig. 1.
Embodiment
As shown in Figures 1 and 2, this heat abstractor 10 comprises that one has the plate body 11 of thermal conductive resin, be located at two heat pipes 12,13 on these plate body 11 tops, with first, second fins group 14,15 of heat pipe 12,13 thermo-contacts, and be used for centrifugal fan 16 to this first and second fins group 14,15 heat radiations.
The rotor 162 that this fan 16 comprises a fan frame 161, be installed in the stator (scheming not show) in this fan frame 161 and can rotate relative to this stator.This fan frame 161 comprise a top board, a base plate and be connected in top board and base plate between side plate, for making things convenient for air-flow to pass in and out this fan frame 161, this fan 16 on fan top board of frame 161 and base plate over against the position of rotor 162, promptly roughly be respectively arranged with a circular hole in the middle position of top board and base plate, air inlet 163,164 as this fan 16, the side plate of fan frame 161 forms two air outlets 165,166 vertical with air inlet 163,164 respectively in its both sides, this two air outlet 165,166 is perpendicular.During these fan 16 runnings, produce negative pressure at air inlet 163,164 places, its ambient air is sucked in the fan frame 161 by air inlet 163,164, after pressurizeing, blow to first, second fins group 14,15 respectively, to cool off this first, second fins group 14,15 by air outlet 165,166.
First and second fins group 14,15 lays respectively at air outlet 165,166 places of fan 16.This first, second fins group 14,15 is arranged along a straight line by some fin 140,150 respectively and is formed.The two mutual parallel flangings 142,152 that this fin 140,150 includes a main part 141,151 and is bent to form respectively by the upper/lower terminal of these main parts 141,151, these flangings 142,152 lean and form the end face and the bottom surface of fins group 14,15, with the contact area of increase with heat pipe 12,13.In the present embodiment, the set-up mode of the fin 150 in the fin 140 in this first fins group 14 and second fins group 15 is identical, is that example is introduced with each fin 140 in first fins group 14 only below.
Please be simultaneously with reference to Fig. 3, fins group 14 is positioned to stretch out towards fan directional along the fin 140 of the 14a of first of airflow direction front end and forms diversion division 147, this diversion division 147 is in the same plane with the body 141 of fin 140, the body 141 of fin 140 that is positioned at the second portion 14c of airflow direction rear end has from the diversion division 143 of body 141 front ends towards the 14a of first of fins group 14 bending, this diversion division 147, the direction and the airflow direction almost parallel of 143 bendings, it highly is slightly less than the height of body 141, on, following two ends all with body 141 on, following two ends form certain distance, its difference in height is respectively the top board of fan frame 161 and the thickness of base plate, so that stretch in the fan frame 161 of fan 16, diversion division 147,143 upper end is to the diversion division 143 of lateral buckling formation with adjacent fin 140,147 flangings that lean 148 form an end face in the upper end of the diversion division 143 of first fins group 14.This diversion division 143,147 and main part 141 are one-body molded, all have certain spacing between each adjacent fin 140, form the gas channel that carries over flanging 148,142 directions between these fin 140, and the air-flow that produces for centrifugal fan 16 passes through.Wherein the quantity of the fin 140 of second portion 14c is much larger than the quantity of the fin 140 of the 14a of first, among this embodiment, the 14a of first only comprises four fin 140, its actual quantity is decided by the flow field situation of spacing size between the fin 140 and air-flow, such as can selecting more than three, but be no more than 1/3 being advisable of whole fin 140 quantity of fins group 14 with fin 140 quantity of the 14a of first.In addition, enter for ease of air-flow, form third part 14b between the 14a of first of this fins group 14 and the second portion 14c, the front end of the fin 140 of this third part 14b is not provided with diversion division, during with diversion division 143 bendings of the fin 140 of avoiding second portion 14c and the straight diversion division 147 of the fin 140 of the 14a of first inconsistent, runner is sealed.Third part 14b is made up of three fin 140 in this execution mode, and its actual quantity is decided by the angle of inclination of the diversion division 143 of second portion 14c, such as selecting one to three, not seal gas channel, to make things convenient for the air-flow inflow to be advisable.In addition, the angle of inclination of diversion division 143 is identical in this execution mode, is differed in the angle of inclination of each diversion division 143 and makes its flow direction with air-flow consistent, will more help the inflow of air-flow.When fins group 14 is installed on air outlet 165 places of fan 16, the lower end abutment of this diversion division 143,147 is on the base plate of fan frame 161, end face fits tightly with the inner surface of the top board of fan frame 161, diversion division 143,147 is contained in fan 16 air outlets 165 places fully, make that the top board of the end face of fins group 14 and this fan frame 161 is in the same plane, the bottom surface of fins group 14 is in the same plane with the base plate of fan frame 161, with this fins group 14 is located (ginseng Fig. 2).Equally, fins group 15 is arranged at air outlet 166 places, comprises that the 15a of first, the second portion 15c in the airflow direction rear end along the airflow direction front end reaches the third part 15b (ginseng Fig. 1) between 15a of first and second portion 15c.
This heat abstractor 10 is by heat pipe 12,13 from two heat-generating electronic elements (figure does not show) absorption heat, such as dispelling the heat at notebook computer, heat pipe 12 can be used for conducting the heat of central processing unit, and heat pipe 13 can be used for the heat transfer of display chip or south bridge and north bridge chipset, described heat pipe 12,13 are attached at first, second fins group 14, on 15 the end face, and with heat transferred to plate body 11 and first, second fins group 14,15, the air-flow that utilizes fan 16 running generations is with first, second fins group 14, the heat at 15 places is taken away, and reaches the purpose to the heater element heat radiation.
During the running of this fan 16 clockwise directions, the direction that produces air-flow as shown in Figure 4, the speed that air skims over fins group 14,15 surfaces is big more, then heat exchanger effectiveness is high more, helps system radiating more.The influence that the front end of air outlet 165,166 is fanned frame 161, air flow direction are roughly parallel with the fan frame, and the rear end air-flow is fanned the influence of frame 161 and reduced, and flows towards its radial direction gradually, and tilt along its direction of advancing.The 14a of first, 15a are arranged at air outlet 165,166 front end near airflow directions, gas channel between the fin 140,150 of the 14a of this first, 15a and air-flow flow to almost parallel.Second portion 14c, 15c are arranged at the rear end of air outlet 165,166, and the angle of inclination of air-flow increases, and the diversion division 143,153 of the fin 140,150 of this second portion 14c, 15c bends about 30 degree to airflow direction.The setting of angle between the diversion division 143,153 of the fin 140,150 by this second portion 14c, 15c and the body 141,151, make cooling blast to flow into rapidly, can be in this fins group 14, the 15 mild transition of the flow direction of cooling blast, the energy loss that reduces cooling blast to impact these fin 140,150 and cause, reduce the flow resistance of this fins group 14,15, and reduce system noise.On the other hand, the diversion division 143,153 of the diversion division 147,157 of the fin 140,150 by the 14a of this first, 15a, the fin 140,150 of second portion 14c, 15c and the setting of this body 141,151, increase the area of dissipation of fins group 14,15, improve the radiating efficiency of fins group 14,15.
By above narration as can be known, setting by this diversion division 143,153,147,157 and this body 141,151, air-flow and fins group 14,15 that fan 16 is produced are carried out reasonably combined, make that the bearing of trend of fin 140,150 is roughly consistent with the flow direction of cooling blast, thereby avoid airflow strikes fin 140,150 to produce eddy current, the loss flowed energy, reduce the flow resistance and the noise of this fins group 14,15, and increase the area of dissipation of this fins group 14,15, thereby make this heat abstractor 10 have higher radiating efficiency.
In the present embodiment, this fan 16 is provided with two air inlets 163,164 and enters with convenient more air-flow, the setting of two air outlets 165,166 can increase the discharge of air-flow, such as at notebook computer, the fan 16 of heat abstractor can be located at the corner location of casing, the air outlet 165,166 that makes fan 16 is respectively towards two sides of casing, so that heat is discharged from two sides respectively, more to help heat radiation.In the practical application, the air inlet 163,164 of fan 16 and quantity, position and the direction of air outlet 165,166 factually the border radiating requirements and adjust, as one or more, the quantity of the corresponding air outlet 165,166 of the number needs of fins group 14,15 is done corresponding the adjustment.The quantity of the fin 140,150 that each several part 14a, 14b, 14c, 15a, 15b, 15c comprise in the fins group 14,15 and the mode of arrangement also can be determined according to the airflow direction of the employed fan of reality, make that the bearing of trend of diversion division 143,153,147,157 of fins group 14,15 is roughly consistent with airflow direction, enter the air-flow velocity and the air quantity maximum of runner, thereby obtain preferable radiating effect.
Claims (14)
1. fins group, comprise some fin, it is characterized in that: this fins group comprises first, second portion and be located at first and second portion between third part, the fin of this first and second portion includes a body and a diversion division, the fin of this third part comprises a body but does not have diversion division, the diversion division of the fin of this first and body are positioned at same plane, the diversion division of the fin of second portion tilts to the first of fins group from body, the first of this fins group, the body equal and opposite in direction of the fin of second portion and third part, the diversion division equal and opposite in direction of the first of this fins group and the fin of second portion.
2. fins group according to claim 1 is characterized in that: the diversion division of each fin and body are integrated, and the quantity of the fin of first is less than the quantity of the fin of second portion.
3. fins group according to claim 2, it is characterized in that: the fin quantity of this first is at least three and be no more than 1/3 of the whole fin quantity of fins group, the quantity of the fin of this third part is one to three, and this second portion is made of all the other fin.
4. heat abstractor, comprise at least one heat pipe, with at least one fins group of this heat pipe thermo-contact and be used to produce cooling blast this fins group is carried out a centrifugal fan of forced heat radiation, it is characterized in that: described fins group is each described fins group in the claim 1 to 3.
5. heat abstractor according to claim 4 is characterized in that: the fin of this first is located at the front end of cooling blast direction, and the fin of this second portion is located at the rear end of cooling blast direction.
6. heat abstractor according to claim 4 is characterized in that: this centrifugal fan comprises a fan frame, and the diversion division of each fin stretches in the fan frame of centrifugal fan, and body is exposed to outside the fan frame.
7. heat abstractor according to claim 4 is characterized in that: this centrifugal fan comprises two orthogonal air outlets, and each air outlet is provided with described fins group.
8. heat abstractor, be used to distribute the heat that electronic component produces, comprise a centrifugal fan and be located at the fins group at the air outlet place of centrifugal fan, this centrifugal fan produces cooling blast this fins group is carried out forced heat radiation, this fins group comprises some fin, it is characterized in that: comprise the first that is positioned at the air-flow front end and be positioned at the second portion of air-flow rear end along this fins group of airflow direction, the fin of this first and second portion includes a body and is positioned at a diversion division of body front end, wherein the diversion division of the fin of this first and its body are positioned at same plane, the diversion division of the fin of second portion tilts to the first of fins group from its body, the body equal and opposite in direction of the first of this fins group and the fin of second portion, the diversion division equal and opposite in direction of the first of this fins group and the fin of second portion.
9. heat abstractor according to claim 8 is characterized in that: this fins group also comprises the third part of being located between above-mentioned first and the second portion, and the fin of this third part comprises a body but do not have diversion division in the front end of this body.
10. heat abstractor according to claim 8 is characterized in that: the body of each fin up and down two ends all protrudes in the diversion division of this fin, and diversion division is contained in the fan frame of centrifugal fan, and with the top board of fan frame and the base plate location that leans.
11. heat abstractor according to claim 8 is characterized in that: this centrifugal fan comprises two orthogonal air outlets, and each air outlet is provided with described fins group.
12. heat abstractor according to claim 8 is characterized in that: the diversion division of each fin and body are integrated.
13. heat abstractor according to claim 8 is characterized in that: the quantity of the fin of this first is less than the quantity of the fin of second portion.
14. heat abstractor according to claim 8 is characterized in that: the upper end of each diversion division is provided with flanging to lateral buckling extension, conflicts mutually by described flanging between the adjacent diversion division.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100631841A CN101166406B (en) | 2006-10-18 | 2006-10-18 | Fin group and heat radiation device with fin group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100631841A CN101166406B (en) | 2006-10-18 | 2006-10-18 | Fin group and heat radiation device with fin group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101166406A CN101166406A (en) | 2008-04-23 |
| CN101166406B true CN101166406B (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100631841A Expired - Fee Related CN101166406B (en) | 2006-10-18 | 2006-10-18 | Fin group and heat radiation device with fin group |
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| Country | Link |
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| CN (1) | CN101166406B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730444B (en) * | 2008-10-16 | 2013-04-24 | 富准精密工业(深圳)有限公司 | Heat radiation device |
| CN102421273B (en) * | 2010-09-27 | 2016-06-08 | 富瑞精密组件（昆山）有限公司 | Heat abstractor and use the electronic installation of this heat abstractor |
| CN102833982A (en) * | 2011-06-15 | 2012-12-19 | 英业达股份有限公司 | Radiating device and electronic device with same |
| CN104202949B (en) | 2014-08-28 | 2017-07-28 | 北京京东方茶谷电子有限公司 | A kind of heat abstractor and portable equipment |
| CN106020398A (en) * | 2016-06-17 | 2016-10-12 | 广东工业大学 | CPU cooling device |
| CN107102710A (en) * | 2017-06-28 | 2017-08-29 | 昆山特酷信息科技有限公司 | The cooling system of notebook computer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2333091Y (en) * | 1997-05-09 | 1999-08-11 | 邱明进 | Eddy cooling fin |
| US6111748A (en) * | 1997-05-15 | 2000-08-29 | Intel Corporation | Flat fan heat exchanger and use thereof in a computing device |
| CN2539126Y (en) * | 2002-04-17 | 2003-03-05 | 陈丽娟 | Improvement of radiating fin structure |
-
2006
- 2006-10-18 CN CN2006100631841A patent/CN101166406B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2333091Y (en) * | 1997-05-09 | 1999-08-11 | 邱明进 | Eddy cooling fin |
| US6111748A (en) * | 1997-05-15 | 2000-08-29 | Intel Corporation | Flat fan heat exchanger and use thereof in a computing device |
| CN2539126Y (en) * | 2002-04-17 | 2003-03-05 | 陈丽娟 | Improvement of radiating fin structure |
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| Publication number | Publication date |
|---|---|
| CN101166406A (en) | 2008-04-23 |
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