201022619 九、發明說明： 【發明所屬之技術領域】 . 本發明涉及一種散熱器，特別涉及一種由複數散熱鰭 片相互扣合而成的散熱器及其散熱鰭片的製造方法。 【先前技術】 隨著電腦產業的迅速發展，微處理晶片等發熱電子元 件產生的熱量愈來愈多，為了將這些熱量散發出去以保障 ❹電子元件的正常運行，業界採用在電子元件上貼設散熱器 以對發熱電子元件進行散熱。 目前常用的散熱器有鋁擠型、壓鑄型及堆疊型。現今 電子元件的發熱量越來越高，鋁擠型及壓鑄型散熱器的製 造因受限於機械加工能力’在滿足高的散熱性能的同時， 其體積或重量必隨之增加，難以符合現今電子產品輕薄小 巧的趨勢。然而，堆疊型散熱器則以具有較大的散熱面積 ❹及較強的散熱功能，成為散熱器的發展趨勢。 習知的堆疊型散熱器的扣合結構大多從散熱鰭片的本 體向外侧突出形成’圖1揭示了 一種習知的堆叠式散熱器結 構’該散熱器由多數散熱片堆疊而成，每一散熱片90包括 一本體91及形成於本體91兩側的折邊92，該折邊92上設有 扣接機構93 ’該扣接機構93包括扣片94和扣接部95，扣接 部95上設有扣接孔96。該扣片94形成於該折邊92與本體91 的相交處’該扣接部95設於折邊92前緣並向外凸出，因而 201022619 在成型該扣接部95時需要截去折邊⑽侧 材料浪費。 付w成 « 【發明内容】 二有必要提供一種可有效提高材料利用率的散 …、器及其散熱鰭片的製造方法。 了種散熱器’包括複數散熱鰭片’每_散熱 =少:側料形成有折邊，每_散減心靠近折邊的 把、息土“ η万式延伸出扣合片，母-散熱鰭片的 邊邊緣的位置以形成缺口的方式延伸出扣鉤，該扣 又有二扣釣相對應的卡槽，該扣合片與扣鉤的延伸 1向相反母一散熱韓片的扣鉤卡扣於相鄰散熱韓片的扣 合片的卡槽内。 :種散熱鰭片的製造方法，包括以下步驟：提供一片 =坯料」在坯料上界定形成本體的區域與形成折邊的區 _ ’在每&料的本體與折邊的連接處以形成缺口的方式 成型扣合片並朝向枉料的一側面凸出，相應 邊緣以形成缺口的方式赤奶甘士 罪向 、 幻万式成型扣鉤，其中，該扣合片中部形 、卡槽，將赵料上形成折邊的區域朝向链料另一側面 該放熱鰭>{上的扣合片和扣釣直接自本體和折邊上以 I成缺π的方式成型，無須在折邊外側預留邊料，與習知 技術相比節省了大量材料，降低了成本。 201022619 【實施方式】 - 圖2和圖3所示為本發明散熱器的較佳實施方式，該散 *熱器由複數散熱鰭片11相互扣合而成。每一散熱鰭片11 包括一本體12及自本體12的兩相對侧邊同向垂直彎折形成 的兩折邊13。 每一散熱鰭片11的本體12的兩侧與折邊13連接處形成 四個扣合片122，這些扣合片122在本體12上以形成缺口的 ❹#式比如衝 壓向外延伸形成。扣合片122與折邊13 —體連接 並與折邊13位於同一平面。該扣合片122朝遠離折邊13的方 向延伸形成“凸”字形，包括一靠近該折邊13的寬部和一遠 離折邊13的窄部。該扣合片122的中部設有--^槽123。 折邊13的邊緣對應扣合片122的位置處形成一扣釣 132’該扣鉤132與該扣合片122的延伸方向相反。該扣鉤132 自該折邊13以形成缺口的方式形成，比如衝壓。形成在該 _扣鉤132外圍的缺口 134與相鄰散熱鰭片η的扣合片122相 配合，該缺口 134的外圍輪廓與扣合片122的“凸，，字形外圍 輪廓相對應’從而該缺口 134可將扣合片122收容於其中。 該扣釣132自該缺口 134的内緣向外延伸。該扣釣132呈“l，， 形’包括自折邊13上平行延伸的一延伸部及自該延伸部的 自由端遠離本體12的方向彎曲形成的鉤部，該延伸部相對 折邊13向本體12下沉一定距離，該鉤部延伸突出折邊13平 201022619 請一併參閱圖6,組裝時，各散熱鰭片1;1並行排列，使 '其相互平行，施力於後一散熱鰭片11，後一散熱鰭片1:1的 扣合片122擠壓前一散熱鰭片n的扣鉤132，使扣鉤132的鉤 部發生彈性變形向其内侧傾斜，從而使後一散熱鰭片^的 扣合片122前端的窄部滑過該扣鉤132,而該鉤部遇到該扣 合片122上的卡槽123而恢復形變，向上彈起而扣合於該卡 槽123内並與卡槽123的内緣相抵靠。另外，該扣合片122的 ❹寬部抵靠於該缺口 134的侧緣上，從而使後一散熱鰭片1：1在 折邊13平面的自由度受到限制。而四個扣鉤132在本體12的 上下兩侧進;行扣合，從而該後一散熱鰭片n在本體12平面 的自由度也受到限制，進而將在後散熱韓片Η牢固地連接 於前散熱鰭片11上。依此法，便可將複數散熱鰭片u扣合 於一體，組成如圖2所示的散熱器10。且組裝過程簡單，操 作方便。 Φ 請一併參閱圖7,本實施方式中的散熱鰭片11可由以下 步驟製成：在一塊長方形的片狀坯料上界定形成本體12的 區域與形成折邊13的區域，圖中位於坯料兩侧邊的兩相鄰 虛線為本體12與折邊13之間的彎折部分，即該兩相鄰虛線 為本體12與折邊13的分界線。在本體12與折邊13連接處以 形成缺口的方式比如衝壓等形成一扣合片122，使該扣合片 122與折邊13—體連接並朝向链料的一侧面凸出。其中，該 扣合片122的中部形成一“凸，，字型卡槽123 ;相應的折邊13 9 201022619 靠向邊緣以形成缺口的方式比如衝壓成型扣鉤132,成型扣 鉤132時，先衝壓形成扣鉤132外圍的缺口 ι34並保留缺口 134中部預定形成扣鉤132的材料，然後將該處材料折彎成 “L”形扣鉤132，最後將形成折邊13的區域朝向坯料的另一 側面彎折，如此便製成上述實施方式中的散熱鰭片U。 上述製造流程為：衝壓成型扣合片122—衝壓成型扣鉤 132—►彎折折邊13。事實上，該散熱鰭片η的制程還可按以 ❹下順序進行：衝壓成型扣鉤132—衝壓成型扣合片122—►彎折 折邊13。即在坯料上界定形成本體12的區域和形成折邊13 的區域後，在折邊13的邊緣衝壓形成扣鉤132，然後相應的 本體12上靠近折邊13處衝壓形成扣合片122，使扣合片122 與折邊13—體相連並朝向坯料的一侧面凸出，最後將形成 折邊13的區域朝向坯料的另一侧面彎折，如此也可製成上 述實施方式所述的散熱鰭片11。 ❹ 圖7所示的實施例中，該散熱鰭片11所需坯料的長度為 131.5mm，寬為13mm’ 面積為 1709.5mm2。 請一併參閱圖8，圖8為成型圖1所示一散熱片90的步 驟’由於該散熱片90的扣接部95自折邊92向外侧凸出形 成’因而該坯料需在折邊92的外側預留邊料以供沖裁該扣 接部95。該圖顯示’當製成與圖7中所示的實施例具有同樣 大小的本體91的散熱片90時，習知技術的方案所需坯料的 寬度增加到18.1mm ’該坯料的面積達2380.15mm2。 201022619 由以上資料的對比可知，在製成一片本體尺寸為 131.5mm*13mm的散熱鰭片時，本發明的這一實施例較習知 技術所需材料減少了 67〇。65mm，節約了 的邊料。 大幅降低了成本。 綜上所述，本發明確已符合發明專利之要件，遂依法 提出專利申請。惟’以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 ❹技藝之人士援依本發明之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1為習知散熱器的立體分解圖。 圖2為本發明散熱器較佳實施方式的立體組合圖。 圖3為圖2的部分分解圖。 圖4為圖3中一散熱鰭片的另一角度的立體圖。 ❹ 圖5為圖3中圈V所示結構的放大圖。 圖6為圖2中圈VI所示結構的放大圖。 圖7為圖4所示散熱鰭片一實施例的成型示意圖。 圖8為圖1所示散熱器中散熱片的一實施例的成型示意 圖。 【主要元件符號說明】 散熱器 1〇 本體 12、91 散熱鰭片 11 扣合片 122 11 201022619 卡槽 123 折邊 13、92 扣鉤 132 缺口 134 散熱片 90 扣接機構 93 扣片 94 扣接部 95 參 12201022619 IX. Description of the Invention: [Technical Field] The present invention relates to a heat sink, and more particularly to a heat sink and a heat sink fin manufacturing method thereof, in which a plurality of heat radiating fins are mutually coupled. [Prior Art] With the rapid development of the computer industry, heat generated by heat-generating electronic components such as micro-processed wafers is increasing. In order to dissipate this heat to protect the normal operation of electronic components, the industry uses electronic components. The heat sink dissipates heat from the heating electronic components. At present, the commonly used radiators are aluminum extrusion type, die casting type and stacked type. Nowadays, the heat generation of electronic components is getting higher and higher. The manufacture of aluminum extrusion and die-casting heat sinks is limited by the machining ability. While meeting the high heat dissipation performance, the volume or weight must increase, which is difficult to meet the present requirements. The trend of thin and light electronic products. However, stacked heat sinks have a large heat dissipation area and a strong heat dissipation function, which has become a trend of heat sinks. Conventional stacked heat sinks are mostly formed by protruding from the body of the heat dissipating fins. FIG. 1 discloses a conventional stacked heat sink structure. The heat sink is formed by stacking a plurality of heat sinks. The heat sink 90 includes a body 91 and a flange 92 formed on two sides of the body 91. The flange 92 is provided with a fastening mechanism 93. The fastening mechanism 93 includes a buckle 94 and a fastening portion 95. The fastening portion 95 A fastening hole 96 is provided on the upper portion. The buckle piece 94 is formed at the intersection of the flange 92 and the body 91. The fastening portion 95 is disposed at the front edge of the flange 92 and protrudes outward. Therefore, the 201022619 needs to cut off the flange when forming the fastening portion 95. (10) Waste of side materials.付w成 « [Summary of the Invention] It is necessary to provide a method for manufacturing a device and a heat dissipating fin thereof which can effectively improve the material utilization rate. A kind of radiator 'includes a plurality of heat-dissipating fins'. Each _ heat dissipation = less: the side material is formed with a hem, each _ scatters the heart closer to the hem, the shovel " η 10,000 extends out of the buckle, the mother - heat The position of the edge of the fin extends out of the hook in a manner of forming a notch, and the buckle has a corresponding slot of the buckle, and the extension of the buckle and the hook is opposite to the female and the hook of the heat sink is removed. The buckle is inserted into the slot of the fastening piece of the adjacent heat-dissipating piece. The method for manufacturing the heat-dissipating fin includes the following steps: providing a piece of material = blanking to define a region forming the body and a region forming the hem on the blank _ 'At the joint of the body and the hem of each & material, the fastening piece is formed in a manner of forming a notch and protrudes toward one side of the material, and the corresponding edge is formed into a notch manner, and the sin is formed by the sin. a buckle, wherein the fastening piece has a middle shape and a card slot, and the area on the Zhao material forming the hemming edge faces the other side of the chain material; the heat-dissipating fins on the upper side of the chain and the buckle fishing directly from the body and the folding edge It is formed by the method of forming the π into the π, without the need to reserve the edge material on the outside of the hem, and the conventional knowledge Compared with technology, it saves a lot of materials and reduces costs. 201022619 [Embodiment] - FIG. 2 and FIG. 3 show a preferred embodiment of a heat sink according to the present invention. The heat sink is formed by interlocking a plurality of heat radiating fins 11. Each of the heat dissipation fins 11 includes a body 12 and two folded edges 13 formed by vertically bending the opposite sides of the body 12. The two sides of the body 12 of each of the heat dissipation fins 11 are joined to the flanges 13 to form four fastening pieces 122. The fastening pieces 122 are formed on the body 12 to form a notch, for example, outwardly. The fastening piece 122 is integrally connected to the flange 13 and is in the same plane as the flange 13. The fastening tab 122 extends away from the flange 13 to form a "convex" shape, including a wide portion adjacent the flange 13 and a narrow portion away from the flange 13. The middle portion of the fastening piece 122 is provided with a slot 123. The edge of the flange 13 is formed at a position corresponding to the fastening piece 122 to form a buckle 132'. The hook 132 is opposite to the extending direction of the fastening piece 122. The clasp 132 is formed from the flange 13 in a manner to form a notch, such as stamping. The notch 134 formed on the periphery of the yoke 132 cooperates with the fastening piece 122 of the adjacent heat dissipation fin η. The outer contour of the notch 134 corresponds to the “convex, zigzag peripheral contour” of the fastening piece 122. The cutout 134 can receive the fastening piece 122 therein. The buckle 132 extends outward from the inner edge of the notch 134. The buckle 132 is "1," and includes an extension extending parallel from the folded edge 13. And a hook portion bent from a direction in which the free end of the extending portion is away from the body 12, the extending portion sinks a certain distance from the flange 13 toward the body 12, and the hook portion extends the protruding flange 13 flat 201022619. Please refer to FIG. 6 together. When assembled, the heat dissipating fins 1; 1 are arranged in parallel so that they are parallel to each other, and are applied to the rear heat sink fins 11, and the rear heat sink fins 1:1 of the fastening fins 122 are pressed to the front heat sink fins. The hook 132 of the n is elastically deformed by the hook portion of the hook 132 to be inclined toward the inner side thereof, so that the narrow portion of the front end of the fastening piece 122 of the rear heat dissipation fin is slid over the hook 132, and the hook portion is encountered. The card slot 123 on the fastening piece 122 is restored to deform, and is bucked up to be engaged in the card slot 123 and Groove 123 abuts against the inner edge. In addition, the wide portion of the fastening piece 122 abuts against the side edge of the notch 134, so that the degree of freedom of the rear heat dissipation fin 1:1 in the plane of the flange 13 is limited. The four hooks 132 are inserted on the upper and lower sides of the body 12; the rows are fastened, so that the degree of freedom of the rear fins n in the plane of the body 12 is also limited, and the rear heat sinks are firmly connected to the rear. Front heat sink fins 11. According to this method, the plurality of heat radiating fins u can be snap-fitted together to form the heat sink 10 as shown in FIG. The assembly process is simple and easy to operate. Φ Referring to FIG. 7 together, the heat dissipation fin 11 of the present embodiment can be made by dividing the area forming the body 12 and the area forming the flange 13 on a rectangular sheet-like blank, which is located in the blank two. The two adjacent dashed lines on the side are the bent portions between the body 12 and the flanges 13, that is, the two adjacent broken lines are the boundary lines between the body 12 and the flanges 13. A fastening piece 122 is formed at a joint between the body 12 and the flange 13 by forming a notch, such as punching, so that the fastening piece 122 is integrally connected with the flange 13 and protrudes toward one side of the chain. Wherein, the middle portion of the fastening piece 122 forms a "convex, font-shaped card slot 123; the corresponding flange 13 9 201022619 leans toward the edge to form a notch, such as a stamped buckle 132, when the buckle 132 is formed, Stamping forms a notch ι 34 around the periphery of the clasp 132 and retains the material of the notch 134 that is intended to form the clasp 132, and then bends the material into an "L" shaped clasp 132, and finally the area forming the hem 13 is directed toward the blank. One side is bent, so that the heat dissipation fins U in the above embodiment are formed. The above manufacturing process is: press forming the fastening piece 122 - the press forming buckle 132 - ► bending the folded edge 13. In fact, the heat dissipation fin The process of the sheet η can also be carried out in the order of the underarm: a stamped forming clasp 132 - a stamped forming clasp 122 - a bent flap 13 . That is, a region defining the body 12 and a region forming the flange 13 are defined on the billet Thereafter, a hook 132 is stamped at the edge of the flange 13 , and then the corresponding body 12 is stamped to form a fastening piece 122 near the flange 13 , so that the fastening piece 122 is connected to the flange 13 and faces one side of the blank. Protruding, finally forming a fold 13 The area is bent toward the other side of the blank, so that the heat dissipation fin 11 of the above embodiment can also be formed. ❹ In the embodiment shown in FIG. 7, the length of the blank required for the heat dissipation fin 11 is 131.5 mm. The width is 13 mm' and the area is 1709.5 mm 2. Please refer to FIG. 8 together. FIG. 8 is a step of forming a heat sink 90 shown in FIG. 1 because the fastening portion 95 of the heat sink 90 protrudes outward from the folded edge 92. Thus, the blank is required to have a trim on the outside of the flange 92 for punching the fastener 95. The figure shows 'a heat sink when the body 91 having the same size as the embodiment shown in Fig. 7 is made. At 90 o'clock, the width of the blank required by the conventional technology solution is increased to 18.1 mm 'the area of the blank is 2381.15 mm 2 . 201022619 From the comparison of the above data, it is known that when a heat sink fin having a body size of 131.5 mm * 13 mm is formed The embodiment of the present invention reduces the material required by the prior art by 67 〇 65 mm, and saves the edge material. The cost is greatly reduced. In summary, the present invention has indeed met the requirements of the invention patent, File a patent application. Only the ones mentioned above are only The preferred embodiment of the present invention is not intended to limit the scope of the patent application of the present invention. Any equivalent modifications or variations made by those skilled in the art to the present invention should be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective exploded view of a conventional heat sink. Figure 2 is a perspective assembled view of a preferred embodiment of the heat sink of the present invention. Figure 3 is a partially exploded view of Figure 2. Figure 4 is a schematic view of Figure 3. Fig. 5 is an enlarged view of the structure shown by circle V in Fig. 3. Fig. 6 is an enlarged view of the structure shown by circle VI in Fig. 2. FIG. 7 is a schematic view showing the molding of an embodiment of the heat dissipation fin shown in FIG. 4. FIG. Figure 8 is a schematic illustration of the formation of an embodiment of a heat sink in the heat sink of Figure 1. [Main component symbol description] Heat sink 1〇 body 12, 91 Heat sink fin 11 Fastener piece 122 11 201022619 Card slot 123 Folding edge 13, 92 Clasp 132 Notch 134 Heat sink 90 Fastening mechanism 93 Clasp 94 Fastening part 95 Reference 12