TWM403686U - Heat dissipation device - Google Patents

Heat dissipation device Download PDF

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Publication number
TWM403686U
TWM403686U TW99223079U TW99223079U TWM403686U TW M403686 U TWM403686 U TW M403686U TW 99223079 U TW99223079 U TW 99223079U TW 99223079 U TW99223079 U TW 99223079U TW M403686 U TWM403686 U TW M403686U
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TW
Taiwan
Prior art keywords
fin
distance
convex portion
protrusion
heat
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TW99223079U
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Chinese (zh)
Inventor
ling-ling Zhang
li-ping Ji
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Inventec Corp
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Priority to TW99223079U priority Critical patent/TWM403686U/en
Publication of TWM403686U publication Critical patent/TWM403686U/en

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  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

Disclosed is a heat-dissipation device, comprising a base, a fm set perpendicularly extending from the base and the fin set consisting of at least a first fm and a second fm, wherein the first fin has adjacent and alternately formed first protrusion and first recess portion whereas the second fm has adjacent and alternately formed second protrusion and recess portion opposing the first protrusion and recess portions, thereby allowing gas to flow through the fm set and generate disturbance flow to thin the border layer and thus reduce the resistance of heat conduction thereof, thereby improving the heat-dissipation coefficient and function by spacing apart the first and second fins.

Description

M403686 因此’如何避免上述習知技術的問題,使氣體經過散 熱裝置的鰭片之間産生渦流或變爲紊流以强化其熱量逸散 效果,實已成目前亟欲解決的課題。 【新型内容】 鑑於上述習知技術的缺失,本創作提供 置,包括.基座;以及鰭片組,係垂直延伸於該基座,包 含成對設置且彼此隔開的至少一對第一鰭片與第二鰭片, 該第一鰭片具有相鄰接地交替形成的第一凸部與第一凹 部,該第二鰭片具有相鄰接地交替形成的第二凹部與第二 凸。卩該第一凹。卩與該第二凸部分別面對於該第一凸部與 第凹。p,該第-凸部的下表面係與該第二凹部的上表面 隔開第-距離’該第一由部的下表面係與該第二凸部的上 表面隔開第二距離,該第一距離不等於該第二距離。 於,述的散熱裝置中,復可包括連接件,係設於背離 該基座的一端側,並連接該第一鰭片與第二籍片。 餘裝置巾,射⑽,減_成 ==下:該相鄰鰭片組的第-凸部的上表面係與 传開第三距離,該、-凹部的上表面 I、該第-凸部的下表面隔開第 於該第四距離。 适弟一距離不等 於前述的散熱裝置中, 凹部係可分別等同於該苐二丄^=凸部與第- 尺寸。該第,與苐二韓片可具有7=二凹部的 凸部、第二凸部、筮 /、啕3予形斷面。該第— 凹部與第二凹部係可呈多角形狀或 M403686 圓弧形狀。 由上可知,本創作的散熱裝置,包括:基座、以及垂 直延伸於該基座的縛片組,該鰭片組係至少由-對第^M403686 Therefore, how to avoid the above-mentioned problems of the prior art, causing eddy currents or turbulence between the fins of the heat radiating device to enhance the heat dissipation effect thereof has become a problem to be solved at present. [New content] In view of the above-mentioned shortcomings of the prior art, the present invention provides a base, and a fin set extending vertically to the base, including at least one pair of first fins disposed in pairs and spaced apart from each other And a second fin having a first protrusion and a first recess alternately formed by adjacent ground, the second fin having a second recess and a second protrusion alternately formed by adjacent ground.卩 The first concave. The second convex portion and the second convex portion face the first convex portion and the first concave portion, respectively. The lower surface of the first protrusion is spaced apart from the upper surface of the second recess by a first distance. The lower surface of the first portion is spaced apart from the upper surface of the second protrusion by a second distance. The first distance is not equal to the second distance. In the heat dissipating device, the connecting member may be disposed on one end side away from the base and connected to the first fin and the second piece. Remaining device, shot (10), minus_===: the upper surface of the first convex portion of the adjacent fin group is separated from the third distance, the upper surface I of the concave portion, the first convex portion The lower surface is spaced apart from the fourth distance. The suitable distance of the suitable one is not equal to the above-mentioned heat dissipating device, and the concave portion can be equivalent to the 凸2丄^= convex portion and the first size, respectively. The first and second Korean sheets may have a convex portion, a second convex portion, and a 筮/, 啕3 pre-shaped section of 7=two recesses. The first recess and the second recess may have a polygonal shape or an M403686 circular arc shape. As can be seen from the above, the heat sink of the present invention comprises: a base, and a set of tabs extending perpendicularly to the base, the fin set being at least by -

片與第二續片所構成’該第—鰭片具有相鄰接地交替形成 的第凸σ[5與第㈣’料二轉片具有相鄰接地交替形 成的第二凹部與第二凸部,該第二凹部與該第二凸部分別 面對於該第-凸部與第一凹部,藉由將該第一鳍片盘第二 鰭片不同的部位關不同的距離,俾令氣體流過賴片組 産生擾流而使邊界層M,錢少邊界層傳熱的阻力,而 增强其熱量逸散储,故可有效增加其本身的熱量逸散性 能。 【實施方式】 以下藉由特定的具體實施形態說明本創作的實施方 式’熟悉此技術領域的人士可由本說明書所揭示的内容輕 易地瞭解本創作的其他優點及功效。 須知,本說明書所附圖式所繪示的結構、比例、大小 等’均僅用以配合說明書所揭示的内容,以供熟悉此技蔽 的人士的瞭解與閱讀,並非用以限定本創作可實施的限定 条件故不具技街上的貫質意義,彳壬何結構的修飾、比例 關係的改變或大小的調整,在不影響本創作所能產生的功 能達成的目的Τ,均應落在本創作所揭示的技術内 谷得能涵蓋的範圍内。同時,本說明書中所引用如“上方”、 “下方”、“前”、“後”、“左”、“右,,等的用語,亦僅為便於 敘述上的明瞭,而非用以限定本創作可實施的範圍,其相 5 M403686 對關係的改變或調整,在無實質變更技術内容下,當亦視 — 為本創作權利要求的範缚。 請參閱第2及3圖,第2圖係為本創作之一實施形態 的鰭片式散熱裝置,第3圖係為第2圖中j區域的局部= 大圖。如圖所示,散熱裝置2係覆設於如為中央處理器的 發熱元件3上,以吸收該發熱元件3所產生的熱量,該散 熱裝置2包括有基座20、以及設於該基座2〇上方並排成、 三列直線的複數鰭片組21。 所述的鰭片組21 ’係由沖壓或擠壓等製程所製成,係鲁 垂直延伸於該基座20,該鰭片組21包含成對設置且彼此 隔開的至少一對第一鰭片211與第二鰭片212,該第一鰭 片211具有相鄰接地交替形成的第一凸部2111與第一凹部 2112,該第二鰭片212具有分別面對於該第一凸部 與弟凹。卩2112且相鄰接地交替形成的第二凹部2121與 第二凸部2122。因為該些凸部2111、2122與凹部2ιΐ2、 2121分別使得該第一鰭片211與第二鰭片212具有弓字形 斷面。該第一凸部2111的下表面係與該第二凹部2121的鲁 ^表面隔開第一距離H卜該第一凹部2112的下表面係與· 該第二々凸部2122的上表面隔開第二距離扣,該第一距離 H1不等於該第二距離H2,於實際使用時當氣體經過各 該鰭片組21時,由於該第一轉片211與第二韓片212的不 ,的部位隔開不同的距離,以形成非等寬度的風道,而使 氣體産生擾"俾使邊界層變薄或使邊界層的生長受到周 期性的破壞,而産生複雜的流型。 6 M403686 更具體而言,當氣體經過該鰭片組21時,由於該鰭 片組21具有非等寬度的風道,得產生旋轉方向相反的旋 渦,以形成螺旋狀前進的流型,進而引起局部流體分離, 而使經過各該鰭片組21氣體的擾動更為紊亂,且流體邊界 層隻薄,故可减少邊界層傳熱的熱阻,而增强其熱量逸散 係數,故可有效增加其本身的熱量逸散性 •SC. 月t* ^於本實施形態中,該第一凸部2m、第二凸部2122、 第凹4 2112與第二凹部2121係呈多角形狀,俾令該第 韓片211與第二鰭片212呈現弓字形斷面或波浪形斷 面’但5亥第一凸部2111、第二凸部2122、第一凹部2112 與第二凹部2121亦可呈其它幾何形狀,例如圓孤形狀,使 该第:鰭片2"與第二鰭片212呈現波浪形斷面。 八,第一鰭片211的第一凸部2111與第一凹部2112係 等同於該第二鰭片212的第二凸部2122與第二凹部 的尺寸,但仍可依熱量逸散的效果適度調整該第一鰭 一該第一鰭片212的尺寸關係,而非以上述者為限。 212 ^者’應說明的是,由於該第一縛片211與第二鰭片 觸的^有弓字形斷面,故可大幅增加單位體積中與大氣接 較於習知呈平直狀的散熱續片更具有較為 、如了篁逸散性能,以滿足客戶嚴苛的散熱要求。 斑坌如第3圖所示,各該鰭片組21相鄰的第一凸部2111 鰭^凹部2121的上、下表面係隔開第三距離h 四距 碣第四距離Ή4,該第三距離H3不等於該第 7 M403686 該相鄰鰭片組21的氣體產生擾流,使 複雜二:卩層的生長受到周期性的破壞,而産生 f置4圖係為本創作之另—實施形態的散熱 =如® — ’散熱裝置2復包括連接件22,該連接件 妹係復說鰭片組21㈣基錢的-端側,係連接第一 續片叫與第二續片212,以增加各該讀片211212之間 的熱傳導,進而提升整體的熱量逸散效能,且可提高韓片 頂部的承縣力’以避免運輸中或其它不t碰撞時造成各 6亥韓片211、212彎曲變形。 綜上所述,本創作的散熱裝置透過具有至少由包括相 鄰接地交替形成的第一凸部與第一凹部的第— 括分別面對於該第-凸部與第—凹部且相鄰接地交替形= 的第二凹部與第二凸部的第二鰭片所構成之鰭片組,藉由 將該第一鰭片與第二鰭片不同的部位隔開不同的距離,俾 令氣體流過該鰭片組産生擾流而使邊界層變薄,以减少邊 界層傳熱的阻力,而增强其熱量逸散係數,故可有效增加 其本身的熱量逸散性能。 上述實施形態用以例示性說明本創作的原理及其功 效,而非用於限制本創作。任何熟習此項技術的人士均可 在不違背本創作的精神及範疇下,對上述實施形態進行修 改。因此本創作的權利保護範圍,應如後述的申請專利範 圍所列。 【圖式簡單說明】 M403686 第1圖為習知鰭片式散熱裝置示意圖; 第2圖為本創作之一實施形態的散熱裝置示意圖; 第3圖為第2圖中I區域的局部放大圖;以及 第4圖為本創作之另一實施形態的散熱裝置示意圖。 【主要元件符號說明】 I 散熱裝置 II 散熱鰭片 、2 散熱裝置 * 20基座 21 鰭片組 211 第一鰭片 2111 第一凸部 2112 第一凹部 212 第二鰭片 2121 第二凹部 φ 2122 第二凸部 22 連接件 3 發熱元件 9The first and second fins have a second concave portion and a second convex portion which are alternately formed by adjacent grounds. The second concave portion and the second convex portion face the first convex portion and the first concave portion respectively, and the gas is passed through the different portions of the second fin of the first fin disk at different distances. The chip group generates a spoiler to make the boundary layer M, the heat of the boundary layer heat transfer resistance, and enhances its heat dissipation, so it can effectively increase its own heat dissipation performance. [Embodiment] The following describes the implementation of the present invention by a specific embodiment. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in the present specification. It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to cope with the contents disclosed in the specification for understanding and reading by those skilled in the art, and are not intended to limit the creation. The limited conditions of implementation do not have the pertinent meaning of the technical street. Any modification of the structure, change of the proportional relationship or adjustment of the size should not fall in the purpose of achieving the function that can be produced by this creation. The scope of the technology revealed by the creation can be covered. In the meantime, terms such as "above", "below", "before", "after", "left", "right", etc., as used in this specification, are merely for convenience of description, and are not intended to be limiting. The scope of the creation of this creation, the change or adjustment of the relationship of 5 M403686, in the absence of substantial changes in the technical content, is also considered as the scope of this creative claim. Please refer to Figures 2 and 3, Figure 2 A fin-type heat sink according to one embodiment of the present invention, and FIG. 3 is a partial=large view of the j region in FIG. 2. As shown, the heat sink 2 is disposed on a central processor. The heat generating element 3 absorbs heat generated by the heat generating element 3. The heat sink 2 includes a susceptor 20 and a plurality of fin sets 21 arranged in the three rows of straight lines disposed above the pedestal 2 。. The fin set 21' is made by a process such as stamping or extrusion, and the ribs extend vertically to the pedestal 20, and the fin set 21 includes at least one pair of first fins disposed in pairs and spaced apart from each other. 211 and the second fin 212, the first fin 211 has a first protrusion alternately formed by adjacent ground 2111 and a first recess 2112, the second fin 212 has a second recess 2121 and a second protrusion 2122 which are respectively formed alternately with respect to the first protrusion and the ridge 2112 and adjacent to the ground. Because of the protrusions The portions 2111, 2122 and the recesses 2 ι 2, 2121 respectively have the first fin 211 and the second fin 212 having a bow-shaped cross section. The lower surface of the first protrusion 2111 is separated from the surface of the second recess 2121. Opening a first distance H, the lower surface of the first recess 2112 is separated from the upper surface of the second protrusion 2122 by a second distance buckle, and the first distance H1 is not equal to the second distance H2, and is actually used. When the gas passes through each of the fin sets 21, since the first rotating piece 211 and the second portion of the second Korean piece 212 are separated by different distances to form a non-equal width air passage, the gas is disturbed. "俾 Thinning the boundary layer or subjecting the growth of the boundary layer to periodic damage, resulting in a complex flow pattern. 6 M403686 More specifically, when the gas passes through the fin set 21, due to the fin set 21 A duct having a non-equal width may have a vortex that rotates in the opposite direction to form The swirling forward flow pattern, which in turn causes local fluid separation, makes the disturbance of the gas passing through each fin group 21 more turbulent, and the fluid boundary layer is only thin, so the heat resistance of the boundary layer heat transfer can be reduced, and the heat resistance is enhanced. The heat dissipation coefficient can effectively increase the heat dissipation property of the body. SC. Month t* ^ In the embodiment, the first convex portion 2m, the second convex portion 2122, the first concave portion 4 2112 and the second concave portion The 2121 has a polygonal shape, and the second and second fins 212 and 212 have a bow-shaped cross section or a wave-shaped cross section, but the first convex portion 2111, the second convex portion 2122, and the first concave portion 2112 are The second recess 2121 can also have other geometric shapes, such as a circular shape, such that the first fin 2 " and the second fin 212 exhibit a wave-shaped cross section. The first convex portion 2111 and the first concave portion 2112 of the first fin 211 are equivalent to the second convex portion 2122 and the second concave portion of the second fin 212, but the effect of heat dissipation is moderate. The size relationship of the first fin to the first fin 212 is adjusted, not limited to the above. 212 ^ ' should be explained that because the first tab 211 and the second fin touch the bow-shaped section, it can greatly increase the unit volume to the atmosphere compared to the conventional flat heat dissipation The sequel is more versatile and has the same performance as the sturdy heat dissipation requirements. As shown in FIG. 3, the upper and lower surfaces of the first convex portion 2111 fins and recesses 2121 adjacent to each of the fin groups 21 are separated by a third distance h, a fourth distance, and a fourth distance Ή4, the third The distance H3 is not equal to the gas generated by the adjacent fin group 21 of the 7th M403686, so that the growth of the complex two layer is periodically broken, and the image of the f is set to be the other embodiment of the creation. The heat dissipation = such as ® - 'The heat sink 2 includes the connector 22, the connector is said to be the fin group 21 (four) of the money-end side, the first sequel is connected with the second slab 212 to increase The heat conduction between each of the reading sheets 211212, thereby improving the overall heat dissipation performance, and improving the bearing capacity of the top of the Korean film to avoid bending of each of the 6-Han 211, 212 during transportation or other non-t collisions. Deformation. In summary, the heat dissipating device of the present invention has a plurality of first and second concave portions alternately formed by alternating adjacent grounds, and the first and second concave portions are alternately connected to each other. The fin group formed by the second recess of the shape== the second fin of the second protrusion is separated from the second fin by a different distance, and the gas flows through The fin group generates a turbulent flow to thin the boundary layer, thereby reducing the resistance of the boundary layer heat transfer and enhancing the heat dissipation coefficient, so that the heat dissipation performance of the ring fin can be effectively increased. The above embodiments are used to exemplify the principles of the present invention and their effects, and are not intended to limit the present invention. Anyone who is familiar with the technology can modify the above embodiments without violating the spirit and scope of this creation. Therefore, the scope of protection of this creation should be as listed in the patent application scope described later. BRIEF DESCRIPTION OF THE DRAWINGS M403686 FIG. 1 is a schematic view of a conventional fin-type heat sink; FIG. 2 is a schematic diagram of a heat sink according to an embodiment of the present invention; FIG. 3 is a partial enlarged view of a region I in FIG. And FIG. 4 is a schematic diagram of a heat sink according to another embodiment of the present invention. [Main component symbol description] I heat sink II heat sink fins, 2 heat sinks * 20 base 21 fin set 211 first fin 2111 first convex portion 2112 first concave portion 212 second fin 2121 second concave portion φ 2122 Second convex portion 22 connecting member 3 heating element 9

Claims (1)

M403686 六、申請專利範圍: 1. 種放熱裝置,其特徵在於,該散熱裝置包括: 基座;以及 鰭片組,係垂直延伸於該基座,包含成對設置且彼 此隔開的至少一對第一鰭片與第二鰭片,該第一鰭片具 有相鄰接地交替形成的第一凸部與第一凹部,該第二鰭 片具有相鄰接地交替形成的第二凹部與第二凸部,該第M403686 VI. Patent Application Range: 1. A heat releasing device, characterized in that: the heat dissipating device comprises: a base; and a fin group extending perpendicularly to the base, comprising at least one pair arranged in pairs and spaced apart from each other a first fin and a second fin, the first fin having a first protrusion and a first recess alternately formed by adjacent ground, the second fin having a second recess and a second protrusion alternately formed by adjacent ground Department, the first 一凹部與该第二凸部分別面對於該第一凸部與第一凹 部,該第一凸部的下表面係與該第二凹部的上表面隔開 第一距離,該第一凹部的下表面係與該第二凸部的上表 面隔開第二距離,該第一距離不等於該第二距離。 2. 如申請專利範圍帛i項所述的散熱震置,其特徵在於 還包括連接件,設於該縛片組背離該基座的一端側,j 連接該第一鰭片與第二鰭片。 3. 如申請專利範圍第i項所述的散熱裝置,其特徵在於a concave portion and the second convex portion face the first convex portion and the first concave portion, respectively, the lower surface of the first convex portion is spaced apart from the upper surface of the second concave portion by a first distance, the lower portion of the first concave portion The surface system is spaced apart from the upper surface of the second protrusion by a second distance, the first distance being not equal to the second distance. 2. The heat sinking device according to the scope of claim 帛i, further comprising a connecting member disposed on an end side of the tab group facing away from the base, j connecting the first fin and the second fin . 3. The heat sink according to claim i, characterized in that 该第- ϋ片的第—凸部與第1部分別等同於該第」 續片的第二凸部與第二凹部的尺寸。 4. 如申請專利範圍第1項所述的散熱裝置,其特徵在於 該第一鰭片與該第二鰭片具有弓字形斷面。 5. 如申請專利範圍第i項所述的散熱裝置,其特徵在於 該第一凸部、第二凸部、第-凹部與第二、 狀或圓弧形狀。 夕再子 6·如申請專利_第丨項所賴散熱裝置,其特徵在於 還包括多個排列成直線的鰭片組。 ' 如_清專利|g園第、 各該鰭片紐相鄰的第一凸::二:裝二’其特徵在於, 丨興及弟一凹部的上、下表面 隔開第三距離,該第一凹部與該第二凸部的上、下表面 隔開第四距離,且該第三距離不等於該第四距離。The first convex portion and the first portion of the first cymbal are respectively equivalent to the sizes of the second convex portion and the second concave portion of the first continuation sheet. 4. The heat sink according to claim 1, wherein the first fin and the second fin have a bow-shaped cross section. 5. The heat sink according to claim i, characterized in that the first convex portion, the second convex portion, the first concave portion and the second, circular or circular arc shape. Further, the heat sink of the present invention is characterized in that it further comprises a plurality of fin groups arranged in a line. '如_清专利|g园第, each of the fins adjacent to the first convex:: two: loaded two' is characterized in that the upper and lower surfaces of the recess of the Zhaoxing and the younger are separated by a third distance, The first recess is spaced apart from the upper and lower surfaces of the second protrusion by a fourth distance, and the third distance is not equal to the fourth distance.
TW99223079U 2010-11-29 2010-11-29 Heat dissipation device TWM403686U (en)

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