CN1310318C - Radiating fin structure - Google Patents
Radiating fin structure Download PDFInfo
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- CN1310318C CN1310318C CNB031385532A CN03138553A CN1310318C CN 1310318 C CN1310318 C CN 1310318C CN B031385532 A CNB031385532 A CN B031385532A CN 03138553 A CN03138553 A CN 03138553A CN 1310318 C CN1310318 C CN 1310318C
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- Prior art keywords
- fin
- respiring
- snake
- heat radiating
- heat
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- 230000005855 radiation Effects 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 abstract 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
本发明公开了一种散热片结构，其包含有一底座、数个鳍片及数个蛇行气流通道。其中鳍片呈波浪状/锯齿状，且可依等相位/不等相位/交错的方式而连续性/不连续性的凸设排列在底座上。蛇行气流通道延伸形成在各相邻二鳍片之间，且在同一延伸方向该蛇行气流通道的长度大于底座的长度；由于在鳍片与蛇行气流通道之间增加了总热交换面积，因此能提升散热片的整体散热效率。
The present invention discloses a heat sink structure, which includes a base, a plurality of fins and a plurality of serpentine airflow channels. The fins are wavy/serrated, and can be arranged on the base in a continuous/discontinuous manner in an equal phase/unequal phase/staggered manner. The serpentine airflow channel extends between each two adjacent fins, and the length of the serpentine airflow channel in the same extension direction is greater than the length of the base; since the total heat exchange area between the fins and the serpentine airflow channel is increased, the overall heat dissipation efficiency of the heat sink can be improved.
Description
Technical field
The present invention relates to a kind of heat radiating fin structure, more particularly, relate to and a kind ofly on cooling fin fin base, be convexly equipped with several and be wavy/jagged fin, and between two adjacent fins, form a serpentine flow path, promote the heat radiating fin structure of radiating efficiency whereby.
Background technology
Traditional heat emission fan and heat radiating fin structure, as shown in figure 12, wherein fin includes a base 10, several fins 11a and several heat dissipation channels 12a, this fin can be fixedly arranged on the top of heat-generating electronic elements (not shown), and the base 10 of fin can one-body moldedly be formed on the metal shell 101 of a heat emission fan 100.Heat emission fan 100 can be assembled with a loam cake 110, and the depressed part of metal shell 101 can be in conjunction with an impeller 102, fin is formed on an air outlet 103 sides of metal shell 101, impeller 102 is by several blade 104 rotation wind dispellings, so that cooling blast enters metal shell 101 from an air intake vent 111 of loam cake 110, and blow fin 11a toward fin by air outlet 103, so that fin 11a and heat dissipation channel 12a carry out heat exchange to the electronic component of below, though, integrated fin and heat emission fan 100 simple in structure and be applicable to ultra-thin short and small electronic installation, but air-flow but directly runs off from straight gas channel 12a easily, thereby can't carry out sufficient heat exchange action, because therefore the direct loss that fin can't slow down air-flow has reduced integral heat sink efficient.
The heat radiating fin structure that another is traditional, as No. the 524430th, Taiwan patent announcement, name is called the patent of " uneven radiating fin appends ", as shown in figure 13, it is to be convexly equipped with several fins 11a on a base 10, and forms several straight gas channels between each two fin 11a.Fin 11a can form different height, so that the top of each fin 11a forms the wavy structure of tool at least three crest 13a jointly, so, this fin can increase total heat exchange area of fin 11a relatively, prolongs the total heat height of each gas channel 12a.Though, when collocation one heat emission fan 20 is used, fin can borrow wavy structure to promote integral heat sink efficient, but this wavy structure has increased the height of fin also simultaneously relatively, and make fin be not suitable for being used in the ultra-thin short and small electronic installation, and air-flow equally still can directly run off from straight gas channel 12a, thereby can't carry out sufficient heat exchange action.Because the direct loss that fin can't slow down air-flow, therefore, it has reduced integral heat sink efficient.
In view of this, creator among the present invention relies on it to be engaged in the experience and the practice of relevant industries for many years, and through concentrating on studies and developing, create eventually a kind of can be under the height that does not increase fin, length or width, just can significantly increase total heat radiation length of gas channel and total heat exchange area of fin, and increase the probability that air-flow touches the fin surface, to promote the heat radiating fin structure of radiating efficiency.
Summary of the invention
Main purpose of the present invention is to provide a kind of heat radiating fin structure with radiating efficiency effect.
Secondary objective of the present invention is to provide a kind of heat radiating fin structure that also can reduce manufacturing cost when promoting radiating efficiency that has.
Heat radiating fin structure among the present invention includes:
One base, the bottom surface of this base can amplexiform on a heat-generating electronic elements;
Several fins, these several fins are wavy/zigzag, and according to equiphase/equiphase/staggered mode continuity/discontinuity is not arranged on the base; And
Several snake-respiring exercise circulation roads, this snake-respiring exercise circulation road extend to form between each adjacent two fin, and in the length of this snake-respiring exercise circulation road of the same bearing of trend length greater than base;
Between fin and snake-respiring exercise circulation road, increase total heat exchange area whereby, thereby promoted the integral heat sink efficient of fin.
In addition, described snake-respiring exercise circulation road is provided with several thermal columns, makes the snake-respiring exercise circulation road can slow down that air-flow directly runs off so that fully carry out heat exchange with radiating fin.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment among the present invention is described in further detail.
Fig. 1 is the basic structure schematic perspective view of heat radiating fin structure first embodiment among the present invention;
Fig. 2 is the perspective exploded view of fin shown in Fig. 1 when combining with heat emission fan;
Fig. 3 is a fin shown in Fig. 1 and part schematic top plan view after heat emission fan combines, the flow direction of air-flow shown in this figure;
Fig. 4 is the three-dimensional exploded view when heat radiating fin structure second embodiment combines with heat emission fan among the present invention;
Fig. 5 is the three-dimensional exploded view when heat radiating fin structure the 3rd embodiment combines with heat emission fan among the present invention;
Fig. 6 is the three-dimensional exploded view when heat radiating fin structure the 4th embodiment combines with heat emission fan among the present invention;
Fig. 7 is a heat radiating fin structure shown in Fig. 6 and part vertical view after heat emission fan combines, the flow direction of air-flow shown in this figure;
Fig. 8 is the three-dimensional exploded view when heat radiating fin structure the 5th embodiment combines with heat emission fan among the present invention;
Fig. 9 is a heat radiating fin structure shown in Fig. 8 and part vertical view after heat emission fan combines, the flow direction of air-flow shown in this figure;
Figure 10 is the three-dimensional exploded view when heat radiating fin structure the 6th embodiment combines with heat emission fan among the present invention;
Figure 11 is a heat radiating fin structure shown in Figure 10 and part vertical view after heat emission fan combines, the flow direction of air-flow shown in this figure;
Figure 12 is the three-dimensional exploded view of traditional heat-dissipating chip architecture when combining with heat emission fan;
Figure 13 is the three-dimensional exploded view of disclosed heat radiating fin structure and heat emission fan in No. the 524430th, the Taiwan patent announcement.
Embodiment
The partial component of heat radiating fin structure is identical with the member of traditional heat-dissipating sheet among the present invention, so both identical members adopt identical figure number to represent, and the structure of member with same reference numbers is no longer elaborated.
As shown in Figure 1, the heat radiating fin structure in the first embodiment of the invention includes a base 10, several fins 11 and several snake-respiring exercise circulation roads 12.This fin is made by heat-conductings such as copper or aluminium, and the heat-generating electronic elements (not shown) can be amplexiformed in the bottom surface of this base 10; Fin 11 is arranged on the base 10 along vertical or horizontal being convexly equipped with of fin, and this fin 11 is preferably and is wavy; Snake-respiring exercise circulation road 12 extends to form between two adjacent fins 11, and this snake-respiring exercise circulation road 12 can avoid air-flow directly to run off.Be preferably in the present embodiment by wavy fin 11 and form equiphase and continuous arrangement is arranged on the base 10, simultaneously, also can select to make the snake-respiring exercise circulation road 12 that forms between each two adjacent fin 11 to arrange on demand and be arranged to equidistantly (width) or unequal-interval, whereby, heat radiating fin structure in the first embodiment of the invention can not increase under fin height, length or the width, increase total heat exchange area of fin 11 relatively, the length that makes snake-respiring exercise circulation road 12 is in the length of same bearing of trend greater than cooling fin fin base 10.
As shown in Figures 2 and 3, when the fin among the embodiment one is one-body molded when being formed on air outlet 103 sides of heat emission fan 100, the base 10 of fin can be fixedly arranged on the top of a heat-generating electronic elements, so that electronic component is dispelled the heat.This heat emission fan 100 is provided with a housing 101, one impeller 102, one air outlet 103, this impeller 102 is combined in the depressed part of housing 101, and be provided with several blades 104, this heat emission fan 100 is preferably and is assembled with a loam cake 110, this loam cake 110 is provided with an air intake vent 111, and can be sealed on the top of heat emission fan 100 and fin, at this moment, when the blade 104 of heat emission fan 100 drives air-flows from air intake vent 111 toward air outlets 103 when flowing, air-flow can enter in the snake-respiring exercise circulation road 12 of fin, and it is outwards mobile along snake-respiring exercise circulation road 12, at this moment, the heat exchange that the present invention not only can utilize snake-respiring exercise circulation road 12 to increase between air-flow and the fin 11, and the bend of snake-respiring exercise circulation road 12 can delay air velocity relatively, makes its prolongation rest on time in the snake-respiring exercise circulation road 12, fully carries out heat exchange action, thereby can increase the heat exchanger effectiveness of unit air-flow really relatively, to promote the integral heat sink efficient of fin.Moreover, the first embodiment of the present invention also can select to shorten the length of air outlet 103 side part fins 11, so can make fin form several bigger air guide holes 121 of width, so that the air outlet 103 from heat emission fan 100 that air-flow can be more smooth enters snake-respiring exercise circulation road 12.
As shown in Figure 4, second embodiment of heat radiating fin structure of the present invention, compare with first embodiment, second embodiment is that the side upright at fin is provided with a heat emission fan 20, when a heat-generating electronic elements is dispelled the heat, the axial flow of heat emission fan 20 can be directly be urged to the other end from an end of fin 11, so that air-flow enters in the snake-respiring exercise circulation road 12 of fin, the heat exchange that so can utilize snake-respiring exercise circulation road 12 to increase between air-flow and the fin 11 equally, and the bend of this snake-respiring exercise circulation road 12 can delay air velocity relatively, make its prolongation rest on time in the snake-respiring exercise circulation road 12, fully carry out heat exchange action, therefore, can increase the heat exchanger effectiveness of unit air-flow really relatively, to promote the integral heat sink efficient of fin, moreover, second embodiment among the present invention can select to shorten the length of heat emission fan 20 side part fins 11 equally so that fin forms several bigger air guide holes of width so that air-flow more smooth enter snake-respiring exercise circulation road 12 from heat emission fan 20.
As shown in Figure 5, the 3rd embodiment among the present invention, with first, second embodiment compares, the 3rd embodiment is provided with a heat emission fan 20 above fin, when heat-generating electronic elements is dispelled the heat, heat emission fan 20 at first drives air-flow perpendicular flow from top to bottom, air-flow is entered in the snake-respiring exercise circulation road 12 of fin, then the air-flow of heat emission fan guides because of the base plate that is subjected to base 10, making air-flow change over horizontal direction flows in snake-respiring exercise circulation road 12, whereby, the heat exchange that the present invention not only can utilize snake-respiring exercise circulation road 12 to increase between air-flow and the fin 11, and the bend of snake-respiring exercise circulation road 12 can delay air velocity relatively, make its prolongation rest on time in the snake-respiring exercise circulation road 12, fully carry out heat exchange action, therefore, really can increase the rate of heat exchange of unit air-flow relatively, promote the integral heat sink efficient of fin.
As shown in Figure 6 and Figure 7, the 4th embodiment and first among the present invention, second, the 3rd embodiment compares, mainly be that fin among this embodiment selects to utilize wavy several fins 11 according to equiphase and successional arrangement are not arranged on the base 10, and between each adjacent two fin 11, form a snake-respiring exercise circulation road 12, if when fin 11 is considered as sinusoidal waveform, the phase difference of two adjacent row fins 11 preferably is 90 degree, simultaneously, in the snake-respiring exercise circulation road 12 of 11 formation of this two adjacent fin, have several broad positions, be used to be provided with several thermal columns 13, heat exchange area with relative lifting fin, and increase air-flow and the arc portion of fin 11 and the heat exchange of thermal column 13, with the integral heat sink efficient of further lifting fin.As shown in Figure 7, what this fin was preferable is one-body molded air outlet in heat emission fan 100 equally, and can select to shorten the length of air outlet 103 side part fins 11 equally, so that fin forms several bigger air guide holes 121 of width, so as air-flow more smooth enter snake-respiring exercise circulation road 12 from air outlet 103.Moreover the heat radiating fin structure among the 4th embodiment can be selected side upright assembling heat emission fan 20, also can assemble heat emission fan up, as shown in Figure 4 and Figure 5.
As Fig. 8 and shown in Figure 9, compare with the present invention first to fourth embodiment, to be several fins 11 of selecting wavy (arc) be arranged on the base 10 according to not equiphase and discontinuous arrangement the heat radiating fin structure of fifth embodiment of the invention, and be formed with a snake-respiring exercise circulation road 12 between two adjacent fins 11.If when fin 11 is considered as sine wave, the phase difference of two adjacent row fins 11 preferably is between 0 to 90 degree, and the overall alignment of this fin 11 formation deflection shape array, directly runs off to avoid air-flow.Though fin 11 is the arrangement of discontinuity, but it still can make the snake-respiring exercise circulation road 12 that is close form connection, and make air-flow simultaneously when the connection position of process snake-respiring exercise circulation road 12, increase the heat exchange of air-flow and fin 11 relatively, through further promoting the integral heat sink efficient of fin, as shown in Figure 9, preferably same one-body molded air outlet 103 places of fin in heat emission fan, and can select to shorten the length of air outlet 103 side part fins 11 equally, so that fin forms several bigger air guide holes 121 of width, so as air-flow more smooth enter snake-respiring exercise circulation road 12 from air outlet 103.Moreover the heat radiating fin structure among the 5th embodiment also can be chosen in side upright heat emission fan 20 is set, and also can assemble heat emission fan from the top, as shown in Figure 4 and Figure 5.
As shown in Figure 10 and Figure 11, the 6th embodiment among the present invention, compare with first to the 5th embodiment, heat radiating fin structure among the 6th embodiment is to utilize jagged several fins 11 to be arranged on the base 10 according to the discontinuous mode that is staggered, simultaneously between this two adjacent fin, be formed with a snake-respiring exercise circulation road 12, this snake-respiring exercise circulation road 12 preferably is staggered by several fin Unit 11 of W type and M type and forms, and the fin 11 of each unit can be selected jagged kink quantity on demand, to change the connection form of snake-respiring exercise circulation road 12, though and fin 11 is arranged for discontinuity, but it still can make adjacent snake-respiring exercise circulation road 12 form connection equally, and make air-flow when the connection position of process snake-respiring exercise circulation road 12, can increase the heat exchange of air-flow and fin 11 relatively, integral heat sink efficient with further lifting fin, as shown in figure 11, fin can be selected one-body molded air outlet 103 places that are formed on heat emission fan 100 equally, or by the upright heat emission fan 20 of side assembling, also can assemble up, as shown in Figure 4 and Figure 5.
Product among the present invention among second to the 6th embodiment can select to make fin 11 and snake-respiring exercise circulation road 12 to be arranged to equidistantly or unequal-interval on demand, in addition, the shape of fin 11 also can select to form zigzag among first to the 5th embodiment, and the fin among the 6th embodiment also may be selected to wavy, arc or V font.
In sum, heat radiating fin structure is to be convexly equipped with wavy/jagged fin 11 on base 10 among the present invention, by equiphase/equiphase/staggered arrangement mode does not form several snake-respiring exercise circulation roads 12 of continuity/discontinuity jointly, the present invention can not increase under heat radiating fin structure height, length or the width whereby, just can significantly increase total heat radiation length of snake-respiring exercise circulation road 12 and total heat exchange area of fin 11, and make air-flow arc portion easy and fin 11 carry out heat exchange, promote the radiating efficiency of fin integral body.
In addition; though above-mentioned a plurality of preferred embodiments among the present invention are described; but can not be as protection scope of the present invention; promptly should be understood that to those skilled in the art; do not breaking away from variation and the modification that to make equivalence under the design spirit of the present invention to it; therefore, every not breaking away from the equivalence variation of having done under the design spirit of the present invention and modification, all should think to fall into protection scope of the present invention.
Claims (13)
1. heat radiating fin structure is characterized in that including:
A base, the bottom surface of described base can amplexiform on a heat-generating electronic elements;
Several fins, one-body molded being convexly equipped with of described several fins is arranged on the base; And
Several snake-respiring exercise circulation roads, described snake-respiring exercise circulation road extend to form between each adjacent two fin, and in the length of this snake-respiring exercise circulation road of the same bearing of trend length greater than base, are provided with several thermal columns in the described snake-respiring exercise circulation road.
2. according to the heat radiating fin structure described in the claim 1, it is characterized in that: described fin is wavy.
3. according to the heat radiating fin structure described in the claim 1, it is characterized in that: described fin indentation.
4. according to the heat radiating fin structure described in the claim 1, it is characterized in that: described fin and snake-respiring exercise circulation road form equiphase and arrange.
5. according to the heat radiating fin structure described in the claim 1, it is characterized in that: described fin and snake-respiring exercise circulation road form not equiphase arrangement.
6. according to the heat radiating fin structure described in the claim 1, it is characterized in that: described fin and snake-respiring exercise circulation road form and are staggered.
7. according to the heat radiating fin structure described in the claim 1, it is characterized in that: described fin and snake-respiring exercise circulation road form the continuity form.
8. according to the heat radiating fin structure described in the claim 1, it is characterized in that: described fin and snake-respiring exercise circulation road form the discontinuity form.
9. according to the heat radiating fin structure described in the claim 1, it is characterized in that: described fin and snake-respiring exercise circulation road form equidistantly, unequal-interval distributes.
10. according to the heat radiating fin structure described in the claim 1, it is characterized in that: the one-body molded air-out oral-lateral that is formed on the housing of a heat emission fan of described fin, the housing of this heat emission fan and radiation fin cover are provided with a loam cake.
11. according to the heat radiating fin structure described in the claim 10, it is characterized in that: the part fin of described fin shortens length in the air outlet position near housing, form several bigger air guide holes of width, what make air-flow energy smoothness enters the snake-respiring exercise circulation road from the heat emission fan air outlet.
12. the heat radiating fin structure according to described in the claim 1 is characterized in that: assembling uprightly is provided with a heat emission fan to described fin in the side.
13. the heat radiating fin structure according to described in the claim 1 is characterized in that: described fin is organized above it and is established a heat emission fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031385532A CN1310318C (en) | 2003-05-27 | 2003-05-27 | Radiating fin structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031385532A CN1310318C (en) | 2003-05-27 | 2003-05-27 | Radiating fin structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1553502A CN1553502A (en) | 2004-12-08 |
| CN1310318C true CN1310318C (en) | 2007-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031385532A Expired - Fee Related CN1310318C (en) | 2003-05-27 | 2003-05-27 | Radiating fin structure |
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| Country | Link |
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| CN (1) | CN1310318C (en) |
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| CN104851854B (en) * | 2015-05-15 | 2018-04-20 | 东莞市闻誉实业有限公司 | chip radiating assembly |
| CN105161470A (en) * | 2015-07-15 | 2015-12-16 | 西安永电电气有限责任公司 | IGBT module heat-radiation apparatus |
| CN105431013B (en) * | 2015-12-15 | 2017-08-25 | 肥东凯利电子科技有限公司 | A kind of Turbulent Flow Type electric machine controller radiating bottom plate |
| CN107084377A (en) * | 2017-04-20 | 2017-08-22 | 杭州华电能源工程有限公司 | A kind of air-cooled LED heat abstractors |
| CN107426950A (en) * | 2017-07-21 | 2017-12-01 | 西安交通大学 | A kind of electronic device natural heat dissipation device |
| CN110121250B (en) * | 2018-02-07 | 2023-09-26 | 上海擎感智能科技有限公司 | Heat dissipation structure and navigation host box |
| JP7021013B2 (en) * | 2018-06-25 | 2022-02-16 | トヨタ自動車株式会社 | Cooler |
| CN115346937A (en) * | 2022-08-25 | 2022-11-15 | 西安交通大学 | Sinusoidal microchannel radiator based on phase change microcapsule/nanoparticle mixed suspension and provided with porous fins |
| CN119893927A (en) * | 2024-12-09 | 2025-04-25 | 苏州长风航空电子有限公司 | Air-cooled radiator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5625229A (en) * | 1994-10-03 | 1997-04-29 | Sumitomo Metal Industries, Ltd. | Heat sink fin assembly for cooling an LSI package |
| CN2271026Y (en) * | 1996-06-18 | 1997-12-17 | 叶元璋 | Heat dissipation structure of semiconductor circuit assembly |
| CN2525677Y (en) * | 2002-01-07 | 2002-12-11 | 英志企业股份有限公司 | Radiator of CPU radiator |
-
2003
- 2003-05-27 CN CNB031385532A patent/CN1310318C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5625229A (en) * | 1994-10-03 | 1997-04-29 | Sumitomo Metal Industries, Ltd. | Heat sink fin assembly for cooling an LSI package |
| CN2271026Y (en) * | 1996-06-18 | 1997-12-17 | 叶元璋 | Heat dissipation structure of semiconductor circuit assembly |
| CN2525677Y (en) * | 2002-01-07 | 2002-12-11 | 英志企业股份有限公司 | Radiator of CPU radiator |
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| Publication number | Publication date |
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| CN1553502A (en) | 2004-12-08 |
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