1321983 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種散熱器，尤指一種用於電子元件散 熱之散熱器。 【先前技術】1321983 IX. Description of the Invention: [Technical Field] The present invention relates to a heat sink, and more particularly to a heat sink for heat dissipation of electronic components. [Prior Art]
為有效地散發電子元件在運行過程中產生之熱 量，業界通常在發熱電子it件表面加裝-散熱器辅助其 散熱，從而使電子元件自身溫度保持在正常運行範圍 内。該散熱器通常包括一導熱基座和自基座向上延伸之 複數散熱鰭片。大陸專利第02248251.2號其揭露一散熱 器，該散熱器包括複數散熱鰭片，每一散熱鰭片之扣合 連接端面兩端分別設有一個“凸”字形扣合槽，平行端 面之内端部上延伸出扣合片’裝配時，每一散熱鰭片藉 由其扣合片插入相鄰一散熱鰭片之扣合槽中實現扣 合，進而構成一散熱體結構。然而，該設計有以下幾個 缺點：I每一散熱鰭片需加工扣合片和扣合槽，製程複 雜，成本高；2.相鄰散熱鰭片間僅靠凹凸配合卡扣，結 合不牢固，組裝出之散熱體結構鬆散，容易發生結構變 形，3.鰭片間隙無法調整。 【發明内容】 本發明提供一種製程簡單、結構穩固之散熱器。 μ本發明之散熱器包括複數散熱鰭片，每一散熱鰭片 上。又有至；一通孔，至少一連接銷穿過對應通孔，該連 6 1321983 接銷具有連續交替分佈之複數卡制部和配合部，其中該 等配合部容置於該等散熱鰭片通孔中，每一卡制部位於 兩相鄰散熱鰭片之間，每相鄰兩卡制部夾置一散熱鰭 片，從而使各散熱鰭片相對連接銷間隔定位。 本發明之散熱器藉由連接銷連接，各散熱鰭片之間 不需要相互卡扣，結構及製程簡單，由於連接銷上設有 用以卡制散熱鰭片之卡制部，每一散熱鰭片被定位在相 鄰兩卡制部之間，不會串動，故可使散熱鰭片牢固地固 定於連接銷上，確保整個散熱器結構之穩固。 【實施方式】 請參照圖1和圖2，本發明之散熱器10包括複數 散熱鰭片30及將各散熱鰭片30串接起來之三連接銷 20 ° 該每一散熱鰭片30具有一本體31和從本體31邊緣 垂直彎折延伸而出 之一折邊32。每一本體31設有三圓形通孔311、312、 313，用以供連接銷20穿設。該通孔313中心位於本體 31上與折邊32垂直之中心線上，另二通孔311、312設 在該通孔313上方並對稱位於該中心線兩側，三通孔 311、312、313之中心連接起來形成一三角形。該連接 銷20具有複數卡制部220與配合部230交替連接且連續 分佈之結構，該卡制部220與配合部230沿連接銷20 長度方向具有同一中心線S。其中，配合部230容置於 7 1321983 通孔311、312、313中，卡制部220位於兩相鄰本體31 之間。每一配合部230直徑和厚度分別與通孔311、312、 313直徑和厚度相同，每一卡制部220呈扁平狀，其具 有二相應的上下平面221和與二平面221相連之二對稱 弧面226、227，卡制部220上垂直於該中心線S之截面 係矩形，其中任一截面240之較長邊長度b均大於通孔 311、312、313直徑，卡制部220之平面221及兩對稱 弧面226、227之邊界線與其相鄰通孔311、312、313 * 之邊界發生干涉，因此，該卡制部220可防止散熱鰭片 30沿連接銷20長度方向移動，散熱鰭片30被卡制固定 在連接銷20上。如此以來，各散熱鰭片30便被連接銷 20牢固地連接在一起，形成一穩定結構。設相鄰散熱鰭 片30之間距為h，該間距h等於連接銷20卡制部220 沿中心線S方向之長度k。應用時，將散熱鰭片30之折 邊32焊接在一導熱板（圖未示）再與一發熱電子元件接 φ 觸進行散熱。 參照圖3和圖4，以下介紹散熱器10之裝配過程，裝 配前，該連接銷20為三根相同並與通孔311、312、313 相對應之縱長形圓柱銷21，該圓柱銷21直徑與通孔 311、312、313之直徑相同，可貫穿於通孔311、312、 313中，圓柱銷21長度大於散熱鰭片30排列之總長度L。 組裝時，各散熱鰭片30之本體31相互平行設置，且相鄰 本體31之間距等於折邊32之寬度，此時，各散熱鰭片30 之通孔311、312、313位置對應一致使得三圓柱銷21貫 8 1321983 穿其中。當圓柱銷21插入通孔311、312、313後，該圓 柱銷21便被散熱鰭片30各本體31分隔成了複數連續交 替分佈之分隔部210和容置於通孔311、312、313中之配 合部，接著對圓柱銷21施加一衝壓動作，將每一圓柱銷 21之分隔部210擠壓成扁平狀之卡制部220，圓柱銷21也 變為圖2所示之連接銷20，從而得到如圖1所示之散熱器 10 ° 值得注意的是，該通孔311、312、313也可係方形 或者其他形狀，相應地連接銷20在裝配前之形狀與通孔 311、312、313形狀對應相同。 綜上所述，本發明符合發明專利要件，爰依法提出 專利申請。惟，以上所述者僅為本發明之較佳實施例， 舉凡熟悉本案技藝之人士，在爰依本發明精神所作之等 效修飾或變化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 圖1係本發明散熱器之組合示意圖。 圖2係圖1之連接銷示意圖。 圖3係本發明散熱器裝配前分解圖，其中，散熱器包括 散熱鰭片和連接銷。 圖4係本發明連接銷變形前之散熱器之組合圖。 【主要元件符號說明】 散熱器 10 連接銷 20 圓柱銷 21 分隔部 210 9 1321983 卡制部 220 平面 221 弧面 226,227 配合部 230 截面 240 散熱鰭片 30 本體 31 通孔 311,312,313 折邊 32In order to effectively dissipate the heat generated by the electronic components during operation, the industry usually installs a heat sink on the surface of the heat-generating electronic component to assist the heat dissipation, so that the temperature of the electronic component itself is maintained within the normal operating range. The heat sink typically includes a thermally conductive base and a plurality of heat sink fins extending upwardly from the base. Continental Patent No. 02288251.2 discloses a heat sink comprising a plurality of heat dissipating fins, and each end of the fastening end face of each of the heat dissipating fins is respectively provided with a “convex” shaped snap groove, and the inner end of the parallel end face Each of the heat dissipating fins is inserted into the engaging groove of the adjacent one of the heat dissipating fins to form a heat dissipating structure. However, the design has the following disadvantages: I need to process the fastening piece and the fastening groove for each heat-dissipating fin, and the process is complicated and the cost is high; 2. The adjacent heat-dissipating fins only rely on the concave-convex and the buckle, and the combination is not strong. The assembled heat sink has a loose structure and is prone to structural deformation. 3. The fin gap cannot be adjusted. SUMMARY OF THE INVENTION The present invention provides a heat sink with a simple process and a stable structure. The heat sink of the present invention includes a plurality of heat sink fins on each of the heat sink fins. And a through hole, at least one connecting pin passes through the corresponding through hole, and the connecting 6 1321983 pin has a plurality of continuously distributed plurality of engaging portions and a mating portion, wherein the matching portions are accommodated in the heat radiating fins In the hole, each of the clamping portions is located between two adjacent heat dissipating fins, and a heat dissipating fin is interposed between each adjacent two clamping portions, so that the heat dissipating fins are spaced apart from each other with respect to the connecting pin. The heat sink of the present invention is connected by connecting pins, and the heat dissipating fins do not need to be buckled with each other, and the structure and the process are simple. Since the connecting pin is provided with a clamping portion for clamping the heat radiating fins, each heat radiating fin It is positioned between the adjacent two clamping parts and does not move in series, so that the heat dissipating fins can be firmly fixed on the connecting pins, ensuring the stability of the entire heat sink structure. [Embodiment] Referring to FIG. 1 and FIG. 2, the heat sink 10 of the present invention includes a plurality of heat dissipation fins 30 and three connection pins 20 that connect the heat dissipation fins 30 in series. Each of the heat dissipation fins 30 has a body. 31 and a folded edge 32 extending perpendicularly from the edge of the body 31. Each of the bodies 31 is provided with three circular through holes 311, 312, 313 for the connecting pins 20 to pass through. The center of the through hole 313 is located on the center line of the body 31 perpendicular to the flange 32. The other two through holes 311 and 312 are disposed above the through hole 313 and symmetrically located on both sides of the center line. The three through holes 311, 312, and 313 are The centers are joined to form a triangle. The connecting pin 20 has a structure in which the plurality of engaging portions 220 and the engaging portion 230 are alternately connected and continuously distributed, and the engaging portion 220 and the engaging portion 230 have the same center line S along the longitudinal direction of the connecting pin 20. The engaging portion 230 is received in the through hole 311, 312, 313 of the 7 1321983, and the locking portion 220 is located between the two adjacent bodies 31. Each of the engaging portions 230 has the same diameter and thickness as the through holes 311, 312, and 313, and each of the engaging portions 220 has a flat shape, and has two corresponding upper and lower planes 221 and two symmetric arcs connected to the two planes 221. The surface 226, 227, the section of the card portion 220 perpendicular to the center line S is rectangular, and the length b of the longer side of any of the sections 240 is larger than the diameter of the through holes 311, 312, 313, and the plane 221 of the card portion 220 The boundary line between the two symmetrical curved surfaces 226 and 227 interferes with the boundary between the adjacent through holes 311, 312, and 313*. Therefore, the locking portion 220 prevents the heat dissipation fins 30 from moving along the length of the connecting pin 20, and the heat dissipation fins The sheet 30 is snap-fitted to the joint pin 20. Thus, the heat radiating fins 30 are firmly joined together by the connecting pins 20 to form a stable structure. The distance between adjacent heat radiating fins 30 is h, which is equal to the length k of the connecting portion 220 of the connecting pin 20 in the direction of the center line S. In application, the folded edge 32 of the heat dissipation fin 30 is soldered to a heat conducting plate (not shown) and then contacted with a heat generating electronic component to dissipate heat. Referring to Figures 3 and 4, the assembly process of the heat sink 10 will be described below. Before assembly, the connecting pin 20 is three elongated cylindrical pins 21 which are identical and correspond to the through holes 311, 312, 313. The diameter of the cylindrical pin 21 The diameter of the through holes 311, 312, and 313 is the same as that of the through holes 311, 312, and 313. The length of the cylindrical pin 21 is greater than the total length L of the heat dissipating fins 30. When assembled, the main body 31 of each of the heat dissipation fins 30 is disposed in parallel with each other, and the distance between the adjacent bodies 31 is equal to the width of the flange 32. At this time, the positions of the through holes 311, 312, and 313 of the heat dissipation fins 30 are consistently matched. The cylindrical pin 21 is worn through 8 1321983. When the cylindrical pin 21 is inserted into the through holes 311, 312, 313, the cylindrical pin 21 is separated by the main body 31 of the heat dissipating fin 30 into a plurality of consecutively alternately spaced partitions 210 and received in the through holes 311, 312, 313. The fitting portion then applies a punching action to the cylindrical pin 21, and the partition portion 210 of each cylindrical pin 21 is pressed into a flat shaped locking portion 220, and the cylindrical pin 21 also becomes the connecting pin 20 shown in FIG. Thus, the heat sink 10° as shown in FIG. 1 is obtained. It should be noted that the through holes 311, 312, and 313 may also be square or other shapes, and the shape of the connecting pin 20 before the assembly and the through holes 311, 312, respectively. The 313 shapes correspond to the same. In summary, the present invention complies with the requirements of the invention patent, and proposes a patent application according to law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the combination of the heat sink of the present invention. Figure 2 is a schematic view of the connecting pin of Figure 1. Figure 3 is an exploded view of the heat sink of the present invention before assembly, wherein the heat sink includes heat sink fins and connecting pins. Figure 4 is a combination view of the heat sink before the deformation of the connecting pin of the present invention. [Main component symbol description] Heat sink 10 Connecting pin 20 Cylindrical pin 21 Separator 210 9 1321983 Carding part 220 Plane 221 Curved surface 226,227 Mating part 230 Section 240 Heat sink fin 30 Body 31 Through hole 311,312,313 Folding 32