CN102770003A - Heat radiator - Google Patents

Heat radiator Download PDF

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Publication number
CN102770003A
CN102770003A CN2011101167855A CN201110116785A CN102770003A CN 102770003 A CN102770003 A CN 102770003A CN 2011101167855 A CN2011101167855 A CN 2011101167855A CN 201110116785 A CN201110116785 A CN 201110116785A CN 102770003 A CN102770003 A CN 102770003A
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CN
China
Prior art keywords
radiating fin
kink
flap
heat abstractor
heat radiation
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2011101167855A
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Chinese (zh)
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CN102770003B (en
Inventor
徐伟杭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furui Precise Component Kunshan Co Ltd
Hon Hai Precision Industry Co Ltd
Original Assignee
Furui Precise Component Kunshan Co Ltd
Hon Hai Precision Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Furui Precise Component Kunshan Co Ltd, Hon Hai Precision Industry Co Ltd filed Critical Furui Precise Component Kunshan Co Ltd
Priority to CN201110116785.5A priority Critical patent/CN102770003B/en
Publication of CN102770003A publication Critical patent/CN102770003A/en
Application granted granted Critical
Publication of CN102770003B publication Critical patent/CN102770003B/en
Expired - Fee Related legal-status Critical Current
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Abstract

A heat radiator comprises a plurality of heat radiation fins. Each heat radiation fin comprises a body. The surface of the body of each heat radiation fin extends to form a folded plate. The folded plate firstly extends towards the body of each heat radiation fin and then is bent backwards the body. The folded plates are abutted with the adjacent bodies of the heat radiation fins to assemble the heat radiation fins, therefore, heat radiation areas of the heat radiation fins can be enlarged, and function of turbulent flow can be realized. Besides, time of air flow staying among the heat radiation fins can be prolonged, so that convection coefficient of the air flow is increased, and heat transfer effect is improved. Further, the heat radiation fins are more compactly combined due to the fact that the folded plates and the heat radiation fins are abutted, and stability of the heat radiator is improved.

Description

Heat abstractor
Technical field
The present invention relates to a kind of heat abstractor, particularly a kind of heat abstractor that is used for the electronic product heat radiation.
Background technology
To reach response frequency more and more sooner increasingly high along with the processing speed of integrated circuit component; The heat of its generation is also more and more; And too high temperature can have a strong impact on the normal operation of integrated circuit, even damages electronic component wherein, therefore need come cooling integrated circuit with heat abstractor.Traditional heat abstractor generally includes some radiating fins.Radiating fin distributes the heat that electronic component produced through the gas channel that forms between the fin.As shown in Figure 1, traditional radiating fin group is interconnected to form by some plane fins of monolithic that are.Yet, because the area of fin is less, can cause the area of dissipation of fins group less, be unfavorable for and the air exchange heat.And, have only the gas channel of straight line shape between per two radiating fins, it is shorter to cause air-flow and radiating fin to carry out time of heat exchange, and the coefficient of heat convection of heat abstractor is less, and it is not good enough that heat passes effect.
Summary of the invention
Therefore, be necessary to provide a kind of heat to pass the preferable heat abstractor of effect.
A kind of heat abstractor; Comprise some radiating fins; Each radiating fin comprises a body; The body surface of each radiating fin extends flap, this flap earlier dorsad the body of radiating fin extend and back bend towards body again, the body of the radiating fin that each flap butt is adjacent and each radiating fin winding.
The flap that the radiating fin of this heat abstractor extends through bending back; Both can increase the area of dissipation of radiating fin, can play the flow-disturbing effect again, and prolong air-flow and be stranded in the time between the radiating fin; Make that the convection coefficient of air-flow is bigger, promote heat and pass effect.In addition and since between flap and the fin against, make each radiating fin combine closelyr, increase the stability of heat abstractor.
With reference to the accompanying drawings, in conjunction with concrete preferred embodiment the present invention is done further description.
Description of drawings
Fig. 1 shows traditional heat abstractor.
Fig. 2 shows the stereogram of heat abstractor among the present invention.
Fig. 3 shows among Fig. 2 the wherein enlarged drawing of a slice fin of heat abstractor.
Fig. 4 shows among Fig. 3 the wherein front view of a slice fin of heat abstractor.
Fig. 5 shows the front view of heat abstractor among Fig. 2.
Fig. 6 shows the heat abstractor front view of a slice fin wherein in the second embodiment of the invention.
Fig. 7 shows the heat abstractor front view of a slice fin wherein in the third embodiment of the invention.
The main element symbol description
10 Heat abstractor
20、20a、20b Radiating fin
210、210a、210b Last flap
211、211a First kink
212、212a Second kink
213、213a The 3rd kink
220、220a、220b Lower flap portion
221、221a、231b First bent sheet
222、222a、232b Second bent sheet
223、223a、233b The 3rd bent sheet
30、30a、30b Body
301、301a Fillet
310 Hypotenuse
311 The obtuse angle
312 The coboundary
313 Lower boundary
314 Preceding border
315 Back border
41、41a、42、42a、43、43a Gas channel
Following embodiment will combine above-mentioned accompanying drawing to further specify the present invention.
Embodiment
See also Fig. 2, show the stereogram of heat abstractor 10 of the present invention, it comprises some radiating fins 20.This heat abstractor also can further comprise the base plate (figure does not show) that carries radiating fin 20, is used for contacting with corresponding electronic component (figure does not show), so that it is dispelled the heat.Each sheet radiating fin 20 is parallel to each other against forming heat abstractor 10 along same direction.
Please consult 3-4 again, the heat abstractor 10 wherein enlarged drawing and the front view of a slice radiating fin 20 are shown.Radiating fin 20 comprises flap 210, a lower flap portion 220 on the body 30.This body 30, go up flap 210 and lower flap portion 220 is made for separating, and then be fixed together through welding or other modes.Body 30 is a pentagon metallic plate, and it roughly is one and cuts one jiao rectangle.The coboundary 312 of body 30 is shorter than lower boundary 313, and preceding border 314 is than back border 315 weak points.Coboundary 312 is connected through hypotenuse 310 with preceding border 314.Hypotenuse 310 forms an obtuse angle 311 with preceding border 314.Preceding border 314 is connected by fillet 301 with lower boundary 313.Body 30 border 312 above that extends flap 210 on, extends a lower flap portion 220 at its lower boundary 313.Last flap 210 all aligns with the back border 315 of body 30 with the rear end of lower flap portion 220, and the three is on same vertical plane.
Should go up that flap 210 deviates from from body 30 tops that body 30 extends and towards body 30 downward back bending.Last flap 210 comprises that first kink 211, second kink 212 and the 3rd kink 213, the first kinks 211 go out from the coboundary of body 30 312 vertical extent.First kink 211 is a rectangular slab, and its left side is shorter than coboundary 312 slightly, and the front end of the kink 211 of winning is not contacted with the contact of hypotenuse 310 with coboundary 312.Second kink 212 is extended on the right side of first kink 211 downward vertically.Second kink 212 is a rectangular slab parallel with body 30.Second kink, 212 to the first kinks 211 are short, and the front end of the front end of second kink 212 and first kink 211 staggers.The lower end of second kink 212 vertically extends three kink 213 isometric with this second kink 212 to body 30.The 3rd kink 213 is vertical with body 30, and is parallel with first kink 211.The 3rd kink 213 butt bodies 30 surfaces, thus constitute gas channels 41 with first kink 211, second kink 212 and body 30 are common.
Lower flap portion 220 deviates from from body 30 bottoms that body 30 extends and towards body 30 upwards back bending.Lower flap portion 220 comprises first bent sheet 221, second bent sheet 222 and the 3rd bent sheet 223.First bent sheet 221 is from lower boundary 313 vertical extent of body 30.First bent sheet 221 is a rectangular slab, and it is shorter than lower boundary 313 a little, but longer than coboundary 312.Extend and its second isometric bent sheet 222 of long limit vertically upward on the right side of first bent sheet 221.This second bent sheet 222 is a rectangular slab.This second bent sheet 222 and body 30 parallel and with second kink 212 at grade.Second bent sheet, 222 tops vertically extend the 3rd bent sheet 223 to body 30.The 3rd bent sheet 223 is a rectangular slab, and it is perpendicular to body 30.The 3rd bent sheet 223 butt bodies 30 surfaces.This first bent sheet 221, second bent sheet 222, the 3rd bent sheet 223 are isometric.The lower flap portion 220 that said three bent sheet 221,222,223 constitute constitutes a gas channel 42 with body 30.
Please consult Fig. 5 again, show the front view of heat abstractor 10.Each sheet radiating fin 20 is against forming heat abstractor 10.The body 30 of the gas channel 41 of every radiating fin 20 and the space between the gas channel 42 and adjacent radiating fin 20 is formed gas channels 43.Air-flow can flow out through radiating fin 20 from above-mentioned three gas channels 41,42,43 respectively.Like this, air-flow just can contact with radiating fin 20 better.Again since the body 30 of radiating fin 20 be one cut one jiao rectangular-shaped and go up lower flap portion 210,220 all slightly short than the up-and-down boundary 312,313 of correspondence; Make the front end of body 30 will protrude, thereby each gas channel 41,42,43 is widened at the front position place near body 30 than last lower flap portion 210,220.When air-flow after gas channel 41,42,43 is flow through in the rear end of radiating fin 20; Position near body 30 front ends crosses and formation flow-disturbing interfering with each other; Thereby carry out heat exchange with radiating fin 20 more fully, the radiating efficiency of heat abstractor 10 is improved.And the gas channel 41,42,43 that this kind widened suddenly endways also can further play transitional function to the guiding of air-flow, makes the circulation of air-flow more smooth and easy.
Fig. 6 shows the second embodiment of the present invention, and the difference of itself and the foregoing description only is that the combination of lower flap portion 210a, 220a and body 30a is different.The body 30a of this second embodiment is the same with body 30 shapes of first embodiment, and its preceding border (figure is mark not) is connected through fillet 301a with lower boundary (figure is mark not).Last lower flap portion 210a, 220a and the body 30a of this second embodiment are the one bending forming; Last flap 210a comprises the first kink 211a, the second kink 212a and the 3rd kink 213a; First kink 211 among said three kink 211a, 212a, 213a and first embodiment, second kink 212, the 3rd kink 213 positions are corresponding, separate and do not contact through the gap but the 3rd kink 213a is slightly narrow with between the body 30a.Lower flap portion 220a comprises the first bent sheet 221a, the second bent sheet 222a, the 3rd bent sheet 223a; The position of first bent sheet 221 among said three bent sheet and first embodiment, second bent sheet 222, the 3rd bent sheet 223 is corresponding, separates and does not contact through the gap but the 3rd bent sheet 223a is slightly narrow with between the body 30.The gas channel 42a that forms between the gas channel 43a of the gas channel 41a that forms between last flap 210a and the body 30a through the centre and lower flap portion 220a and the body 30a is communicated with.
Be appreciated that ground; Body 30a among second embodiment and flap 210a, 220a one bending forming can be used for first embodiment, separate and do not contact also through the gap between the 3rd kink 213a among second embodiment, the 3rd bent sheet 223a and the body 30a to be used for first embodiment.
Please consult Fig. 7 again, show the third embodiment of the present invention.Body 30, the 30a of two embodiment of the body 30b of the 3rd embodiment and front are the same, and the main distinction is that the position of flap 210b, 220b, 230b and shape are different.In the present embodiment, each one of two ends bends out vertically extending flap 210b of going up and lower flap portion 220b about the body 30b.The fixing last flap 230b of the welding of body 30 medium positions or other modes of passing through.This flap 230b comprises the first bent sheet 231b, the second bent sheet 232b, the 3rd bent sheet 233b.The first bent sheet 231b of this flap 230b deviates from body 30b and extends, and the second bent sheet 232b bends downwards from the first bent sheet 231b, the 3rd bent sheet 233b from the second bent sheet 232b towards body 30b back bending.Be appreciated that ground, this flap 230b also can be considered to the 3rd bent sheet 233b and deviate from body 30b and extend, and the second bent sheet 232b is from upwards bending of the 3rd bent sheet 233b, the first bent sheet 231b from the second bent sheet 232b towards body 30b back bending.The first bent sheet 231b is perpendicular to body 30b, and the second bent sheet 232b is parallel to body 30b, and the 3rd bent sheet 233b is perpendicular to the second bent sheet 232b, and is parallel to first bent sheet 231.Said three bent sheet 231b, 232b, 233b, go up flap 210b and lower flap portion 220b is rectangular slab, wherein the first bent sheet 231b, the 3rd bent sheet 233b are identical with the width of last flap 210b, lower flap portion 220b.These three bent sheet 231b, 232b, 233b and body 30b together constitute a gas channel 43b.In the present embodiment; Some radiating fin 20b are after winding; The body 30b of the last flap 210b of each radiating fin 20b, the first bent sheet 231b and adjacent another sheet radiating fin 20b forms gas channel 41b, the body 30 formation gas channel 42b of lower flap portion 220b, the 3rd bent sheet 233b and adjacent another sheet radiating fin 20b.Thus, after some radiating fin 20b combinations, form three gas channel 41b, 42b, 43b between per two radiating fin 20b.Simultaneously, because the existence of said two flap 210b, 220b and three bent sheet 231b, 232b, 233b, increased the area of dissipation of radiating fin 20b.Therefore, lower flap portion 210b, 220b and this three bent sheet 231b, 232b, 233b have effectively improved the radiating efficiency of heat abstractor 10 on this.
Through forming flap 210,210a, 210b, 220,220a, 220b, 230b, can increase the pathway of heat on fin, it can be conducted from a plurality of different approach, thereby promote the heat transfer efficiency of radiating fin 20,20a, 20b.Flap 210,210a, 210b, 220,220a, 220b, 230b also can play the flow-disturbing effect to air-flow; Promote the coefficient of heat convection of heat abstractor 10; Air-flow is stranded between radiating fin 20,20a, the 20b, and the time of carrying out heat exchange with radiating fin 20,20a, 20b obtains prolonging.And; Because every radiating fin 20,20a, 20b all have flap 210,210a, 220,220a, the 230b of back bending; Therefore, the area of dissipation of every radiating fin 20,20a, 20b is all bigger, thereby makes the radiating efficiency of heat abstractor 10 get a promotion.And; Because every radiating fin 20,20a, the flap 210 of 20b, 210a, 210b, 220,220a, 220b, 230b all lean with adjacent another radiating fin 20,20a20b; Therefore also increased the stability of heat abstractor 10, made it be not easy to deform.
Be appreciated that ground; Above-mentioned flap 210,210a, 210b, 220,220a, 220b, 230b can also be the tabs of other shapes; Gas channel 41,41a, 41b, 42,42a, 42b, 43,43a, the 43b that forms also can become corresponding other shapes; For example, trapezoidal, hexagon or the like.

Claims (10)

1. heat abstractor; Comprise some radiating fins; Each radiating fin comprises body; It is characterized in that: the body surface of each radiating fin extends flap, this flap earlier dorsad body extend and back bend towards body again, the body of the radiating fin that the flap butt of each radiating fin is adjacent and each radiating fin winding.
2. heat abstractor as claimed in claim 1 is characterized in that: flap extends from the end of the body of radiating fin.
3. heat abstractor as claimed in claim 1 is characterized in that: flap extends from the middle part of the body of radiating fin.
4. heat abstractor as claimed in claim 3 is characterized in that: the body of this radiating fin respectively extends another flap in both ends up and down, and this flap is between two another flaps.
5. like each described heat abstractor of claim 1 to 4; It is characterized in that: this flap extends first kink from the radiating fin body surface; First kink is bent to form second kink along the direction of parallel body, and the end of second kink is bent to form the 3rd kink to the body of radiating fin.
6. heat abstractor as claimed in claim 5 is characterized in that: first kink of this flap, second kink and the 3rd kink and body form gas channel.
7. heat abstractor as claimed in claim 5 is characterized in that: the terminal butt body surface of the 3rd kink.
8. heat abstractor as claimed in claim 5 is characterized in that: the end and the body surface of the 3rd kink separate the gap.
9. heat abstractor as claimed in claim 5 is characterized in that: the body of this radiating fin and this flap are the one bending forming.
10. heat abstractor as claimed in claim 6 is characterized in that: gas channel is widened at the end near body.
CN201110116785.5A 2011-05-06 2011-05-06 Heat abstractor Expired - Fee Related CN102770003B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110116785.5A CN102770003B (en) 2011-05-06 2011-05-06 Heat abstractor

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Application Number Priority Date Filing Date Title
CN201110116785.5A CN102770003B (en) 2011-05-06 2011-05-06 Heat abstractor

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CN102770003A true CN102770003A (en) 2012-11-07
CN102770003B CN102770003B (en) 2016-09-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109243942A (en) * 2018-09-10 2019-01-18 广东美的厨房电器制造有限公司 Radiating subassembly for magnetron and the magnetron with it
CN111902001A (en) * 2020-08-24 2020-11-06 东莞市阳耀电子技术有限公司 Hardware plate structure
TWI728499B (en) * 2019-10-09 2021-05-21 立端科技股份有限公司 Heat dissipation device having layered structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893161A (en) * 1974-02-04 1975-07-01 Jr Albert Pesak Frictionally engageable heat sink for solid state devices
CN1105120A (en) * 1993-08-06 1995-07-12 三菱电机株式会社 Cooling apparatusm and assembling method thereof
US20030213582A1 (en) * 2002-05-16 2003-11-20 Hai-Ching Lin Radiator with heat dissipation pieces connected in series
CN201267083Y (en) * 2008-08-27 2009-07-01 国格金属科技股份有限公司 Radiating module
CN201336785Y (en) * 2008-12-30 2009-10-28 索士亚科技股份有限公司 Radiator
CN201638805U (en) * 2010-04-23 2010-11-17 锘威科技(深圳)有限公司 Radiator fin set and radiator using the same
CN101998809A (en) * 2009-08-26 2011-03-30 富瑞精密组件(昆山)有限公司 Radiation device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195687A (en) * 1977-12-12 1980-04-01 Taziker Robert E Space heating panels
CN101368713B (en) * 2007-08-17 2010-11-10 富准精密工业(深圳)有限公司 Heat radiator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893161A (en) * 1974-02-04 1975-07-01 Jr Albert Pesak Frictionally engageable heat sink for solid state devices
CN1105120A (en) * 1993-08-06 1995-07-12 三菱电机株式会社 Cooling apparatusm and assembling method thereof
US20030213582A1 (en) * 2002-05-16 2003-11-20 Hai-Ching Lin Radiator with heat dissipation pieces connected in series
CN201267083Y (en) * 2008-08-27 2009-07-01 国格金属科技股份有限公司 Radiating module
CN201336785Y (en) * 2008-12-30 2009-10-28 索士亚科技股份有限公司 Radiator
CN101998809A (en) * 2009-08-26 2011-03-30 富瑞精密组件(昆山)有限公司 Radiation device
CN201638805U (en) * 2010-04-23 2010-11-17 锘威科技(深圳)有限公司 Radiator fin set and radiator using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109243942A (en) * 2018-09-10 2019-01-18 广东美的厨房电器制造有限公司 Radiating subassembly for magnetron and the magnetron with it
TWI728499B (en) * 2019-10-09 2021-05-21 立端科技股份有限公司 Heat dissipation device having layered structure
CN111902001A (en) * 2020-08-24 2020-11-06 东莞市阳耀电子技术有限公司 Hardware plate structure

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