TWI555463B - Heat sink and manufacturing method thereof - Google Patents
Heat sink and manufacturing method thereof Download PDFInfo
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- TWI555463B TWI555463B TW099145974A TW99145974A TWI555463B TW I555463 B TWI555463 B TW I555463B TW 099145974 A TW099145974 A TW 099145974A TW 99145974 A TW99145974 A TW 99145974A TW I555463 B TWI555463 B TW I555463B
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Description
本發明涉及一種散熱器,特別涉及一種用於對電子元件散熱的散熱器及其製造方法。 The present invention relates to a heat sink, and more particularly to a heat sink for dissipating heat from an electronic component and a method of manufacturing the same.
隨著電子資訊業的迅速發展,微處理晶片等發熱電子元件產生的熱量愈來愈多,為了將該等熱量散發出去以保障電子元件的正常運行,業界通常採用在電子元件上貼設一散熱器以對該發熱電子元件進行散熱。 With the rapid development of the electronic information industry, the heat generated by the heat-generating electronic components such as micro-processing wafers is increasing. In order to dissipate the heat to ensure the normal operation of the electronic components, the industry usually uses a heat-dissipating component on the electronic components. The device dissipates heat from the heat-generating electronic component.
習知的散熱器通常包括一基板以及設於該基板上的複數散熱鰭片。每一散熱鰭片包括一本體及從該本體的兩側分別向同一方向彎折的折邊。所述散熱鰭片沿基板的縱向依次排列,每一散熱鰭片的折邊的末端與相鄰散熱鰭片的本體相互接觸,於該散熱器的頂端及底端分別形成一結合面。該基板與發熱電子元件接觸,所述散熱鰭片通過錫焊方式焊接至基板上,在錫焊過程中,需要添加焊料以及助焊劑,尤其在不同材料的焊接過程中,如鋁與銅焊接,還需進行鍍鎳或其他特殊處理,工序較為複雜且成本高。 A conventional heat sink generally includes a substrate and a plurality of heat dissipation fins disposed on the substrate. Each of the heat dissipation fins includes a body and a flange that is bent in the same direction from both sides of the body. The heat dissipating fins are sequentially arranged along the longitudinal direction of the substrate, and the ends of the folded edges of each of the heat dissipating fins are in contact with the body of the adjacent heat dissipating fins, and a joint surface is respectively formed at the top end and the bottom end of the heat sink. The substrate is in contact with the heat-generating electronic component, and the heat-dissipating fin is soldered to the substrate by soldering. In the soldering process, solder and flux are added, especially in the welding process of different materials, such as aluminum and copper. Nickel plating or other special treatments are also required, which are complicated and costly.
有鑒於此,實有必要提供一種具有較低成本且組裝方便的散熱器及其製造方法。 In view of this, it is necessary to provide a heat sink having a low cost and easy assembly and a method of manufacturing the same.
一種散熱器,其包括一基座及設於該基座上的一散熱鰭片組,所 述基座上設有兩個間隔設置的固定部,每一固定部包括由該基座向上延伸的一凸台及由該凸台於靠近另一凸台的一側向另一凸台的方向延伸的一抵靠部,該抵靠部與凸台及所述基座之間圍成一凹槽,所述抵靠部上設有一溝槽,所述散熱鰭片組的相對兩側各設有一突出部,該散熱鰭片組通過將所述突出部收容於該基座的凹槽內並抵壓該抵靠部的溝槽位置而裝設至該基座上。 A heat sink includes a base and a heat sink fin set on the base The base is provided with two spaced-apart fixing portions, each fixing portion includes a boss extending upward from the base and a direction from the side of the boss to the other boss toward the other boss An abutting portion, the abutting portion and the boss and the base form a groove, the abutting portion is provided with a groove, and the opposite sides of the heat dissipating fin group are respectively disposed There is a protruding portion, the heat dissipating fin set is mounted on the base by receiving the protruding portion in a recess of the base and pressing a groove position of the abutting portion.
一種散熱器的製造方法,包括如下步驟:提供一基座,該基座上設有兩個間隔設置的固定部,每一固定部包括由該基座向上延伸的一凸台及由該凸台於靠近另一凸台的一側向另一凸台的方向延伸的一抵靠部,該抵靠部與凸台及所述基座之間圍成一凹槽,所述抵靠部上設有一溝槽;提供一散熱鰭片組,所述散熱鰭片組的相對兩側各設有一突出部;將所述突出部收容於該基座的凹槽內並通過一治具施壓該抵靠部的溝槽位置而將該散熱鰭片組裝設至該基座上。 A method of manufacturing a heat sink, comprising the steps of: providing a pedestal having two spaced apart fixing portions, each fixing portion including a boss extending upward from the pedestal and the boss An abutting portion extending toward a direction of the other of the bosses, and abutting portion between the abutting portion and the boss and the base, the abutting portion is disposed a groove is provided; a heat dissipation fin group is provided, and a protrusion is disposed on each of opposite sides of the heat dissipation fin group; the protrusion is received in the groove of the base and pressed by a fixture The heat dissipating fins are assembled to the base by the groove position of the portion.
與習知技術相比,該散熱器的散熱鰭片組通過將所述突出部收容於該基座的凹槽內並抵壓該抵靠部的溝槽位置而裝設至該基座上,製作簡單,並可以使二者間無需塗設焊錫即可達成緊密而穩固的結合,從而節約成本且環保。 Compared with the prior art, the heat dissipation fin set of the heat sink is mounted on the base by receiving the protruding portion in the groove of the base and pressing the groove position of the abutting portion. It is easy to manufacture and allows for a tight and stable bond without the need for soldering between the two, resulting in cost savings and environmental friendliness.
10‧‧‧散熱器 10‧‧‧ radiator
12‧‧‧基座 12‧‧‧ Pedestal
16‧‧‧散熱鰭片組 16‧‧‧Fixing fin set
20‧‧‧治具 20‧‧‧ fixture
21‧‧‧基板 21‧‧‧Substrate
22‧‧‧沖頭 22‧‧‧ Punch
120‧‧‧下表面 120‧‧‧lower surface
121‧‧‧固定部 121‧‧‧Fixed Department
122‧‧‧上表面 122‧‧‧ upper surface
123‧‧‧凸台 123‧‧‧Boss
125‧‧‧抵靠部 125‧‧‧Abutment
126‧‧‧凹槽 126‧‧‧ Groove
128‧‧‧溝槽 128‧‧‧ trench
160‧‧‧散熱鰭片 160‧‧‧Heat fins
161‧‧‧本體部 161‧‧‧ Body Department
162‧‧‧第一折邊 162‧‧‧ first fold
163‧‧‧第二折邊 163‧‧‧second hem
164‧‧‧第三折邊 164‧‧‧ third hem
165‧‧‧第四折邊 165‧‧‧ fourth fold
166‧‧‧中間部 166‧‧‧ middle part
167‧‧‧延伸部 167‧‧‧Extension
168‧‧‧卡扣結構 168‧‧‧ buckle structure
169‧‧‧突出部 169‧‧‧Protruding
170‧‧‧承載面 170‧‧‧ bearing surface
172‧‧‧支撐面 172‧‧‧Support surface
221‧‧‧刀口 221‧‧‧ knife mouth
圖1為本發明一較佳實施例中的散熱器的立體組裝圖。 1 is an assembled, isometric view of a heat sink in accordance with a preferred embodiment of the present invention.
圖2為圖1所示散熱器的分解圖。 Figure 2 is an exploded view of the heat sink of Figure 1.
圖3為圖2所示散熱器中的一散熱鰭片的立體圖。 3 is a perspective view of a heat sink fin in the heat sink shown in FIG. 2.
圖4為圖1所示的散熱器通過一治具沖壓時的側面示意圖。 4 is a side view showing the heat sink shown in FIG. 1 stamped by a jig.
下面參照附圖結合實施例對本發明作進一步的描述。 The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.
如圖1所示,該散熱器10包括一基座12及設於該基座12上的一散熱鰭片組16。 As shown in FIG. 1 , the heat sink 10 includes a base 12 and a heat dissipation fin set 16 disposed on the base 12 .
請同時參閱圖2,該基座12大致為矩形板狀,其包括一平整的下表面120及與該下表面120相對的一上表面122。該下表面120用於與一發熱電子元件相貼合。該上表面122的相對兩側各設有一固定部121。該兩個固定部121相互平行間隔設置,其可通過擠壓或其他方式形成。每一固定部121包括由該基座12的上表面122向上延伸的一凸台123及由該凸台123的頂端於靠近另一凸台123的一側向另一凸台123的方向延伸的一抵靠部125,該抵靠部125與凸台123及該基座12的上表面122之間圍成一凹槽126。每一凸台123由該基座12的上表面122向上垂直延伸形成,其橫截面為矩形。每一抵靠部125由其所在的凸台123的一側向另一凸台123的方向水平延伸,其上表面上設有一溝槽128。該溝槽128沿該抵靠部125的縱向延伸並貫穿該基座12相對的前後兩側。 2, the base 12 is generally rectangular in shape and includes a flat lower surface 120 and an upper surface 122 opposite the lower surface 120. The lower surface 120 is for conforming to a heat generating electronic component. A fixing portion 121 is disposed on each of opposite sides of the upper surface 122. The two fixing portions 121 are spaced apart from each other in parallel, which may be formed by extrusion or other means. Each of the fixing portions 121 includes a boss 123 extending upward from the upper surface 122 of the base 12 and extending from a side of the boss 123 toward a side of the other boss 123 toward the other boss 123. An abutting portion 125 defines a recess 126 between the abutting portion 125 and the boss 123 and the upper surface 122 of the base 12. Each of the bosses 123 is formed vertically extending upward from the upper surface 122 of the base 12 and has a rectangular cross section. Each of the abutting portions 125 extends horizontally from one side of the boss 123 to the other of the bosses 123, and a groove 128 is formed on the upper surface thereof. The groove 128 extends in the longitudinal direction of the abutting portion 125 and penetrates the front and rear sides of the base 12 opposite to each other.
該散熱鰭片組16由複數平行的散熱鰭片160排列而成。請同時參閱圖3,每一散熱鰭片160包括一本體部161、由該本體部161的外緣同向彎折延伸的一第一折邊162、一第二折邊163、兩個第三折邊164及兩個第四折邊165。該本體部161大致為一倒“T”形結構,其包括一矩形板狀的中間部166及由該中間部166於靠近其底端位置的相對兩側向外延伸的兩個延伸部167。該兩延伸部167亦為矩形平板狀,其所在的平面與該本體部161所在的平面在同一平面內。該第一折邊162由該中間部166的頂端垂直彎折延伸而成。 該第二折邊163與第一折邊162相對,其由該中間部166及兩個延伸部167的底端垂直彎折延伸而成。該兩個第三折邊164分別由該兩個延伸部167的頂端垂直彎折延伸而成。該兩個第四折邊165分別連接設於該第三折邊164與該第二折邊163之間,其分別由該兩個延伸部167的遠離中間部166的一側垂直彎折延伸而成。每一散熱鰭片160的第一折邊162及第二折邊163上分別設有與其相鄰的散熱鰭片160的第一折邊162及第二折邊163配合的卡扣結構168,該散熱鰭片組16通過該等卡扣結構168相互扣合而組裝到一起,組裝後的各散熱鰭片160的延伸部167於該散熱鰭片組16的底端的相對兩側分別形成一突出部169。每一散熱鰭片160的第一折邊162、第二折邊163、第三及第四折邊164、165由該本體部161向外延伸的寬度相同,在該等散熱鰭片組裝到一起時,後組裝的一散熱鰭片160的第一折邊162、第二折邊163、第三及第四折邊164、165分別抵靠於前一散熱鰭片160的本體部161上,從而使該等第一折邊162及第二折邊163分別於該散熱鰭片組16的頂端及底端形成一平整的頂面及底面,該等第三折邊164於該兩個突出部169的頂端形成一承載面170,該等第四折邊165於該兩個突出部169的側端分別形成一支撐面172。 The heat dissipation fin group 16 is formed by arranging a plurality of parallel heat dissipation fins 160. Referring to FIG. 3 , each of the heat dissipation fins 160 includes a body portion 161 , a first flange 162 extending from the outer edge of the body portion 161 , a second flange 163 , and two third portions Folding edge 164 and two fourth folding edges 165. The body portion 161 is generally an inverted "T"-shaped structure including a rectangular plate-shaped intermediate portion 166 and two extending portions 167 extending outwardly from opposite sides of the intermediate portion 166 near the bottom end thereof. The two extensions 167 are also rectangular and have a plane lying in the same plane as the plane of the body portion 161. The first flange 162 is formed by vertically bending the top end of the intermediate portion 166. The second flange 163 is opposite to the first flange 162 and is formed by vertically bending the bottom portion of the intermediate portion 166 and the two extending portions 167. The two third flanges 164 are respectively formed by vertically bending the top ends of the two extension portions 167. The two fourth flanges 165 are respectively connected between the third flange 164 and the second flange 163, and are respectively bent and extended by a side of the two extension portions 167 away from the intermediate portion 166. to make. The first flange 162 and the second flange 163 of each of the heat dissipation fins 160 are respectively provided with a buckle structure 168 that is matched with the first flange 162 and the second flange 163 of the adjacent heat dissipation fins 160. The heat dissipating fins 16 are assembled by being fastened to each other by the fastening structures 168. The extended portions 167 of the assembled heat dissipating fins 160 respectively form a protrusion on opposite sides of the bottom end of the heat dissipating fin group 16 . 169. The first flange 162, the second flange 163, the third and fourth flanges 164, 165 of each of the heat dissipation fins 160 have the same width extending outward from the body portion 161, and the heat dissipation fins are assembled together. The first folded edge 162, the second folded edge 163, and the third and fourth folded edges 164 and 165 of the rear heat dissipating fins 160 respectively abut against the body portion 161 of the front heat dissipation fin 160, thereby The first flange 162 and the second flange 163 respectively form a flat top surface and a bottom surface at the top end and the bottom end of the heat dissipation fin group 16 , and the third flange 164 is opposite to the two protrusions 169 . The top end of the two protrusions 169 forms a support surface 172 at the side ends of the two protrusions 169.
請同時參閱圖4,提供一治具20,該治具20包括一基板21及由該基板21的相對兩側向下延伸的兩沖頭22,每一沖頭22呈板狀,其末側端設有一刀口221,該刀口221由該治具20的外側斜向內延伸。該兩沖頭22之間的距離略大於每一散熱鰭片160的中間部166沿其兩突出部169連線方向上的寬度。 Referring to FIG. 4 at the same time, a jig 20 is provided. The jig 20 includes a substrate 21 and two punches 22 extending downward from opposite sides of the substrate 21. Each punch 22 has a plate shape and a distal end thereof. The end is provided with a knife edge 221 which extends obliquely inwardly from the outside of the jig 20. The distance between the two punches 22 is slightly larger than the width of the intermediate portion 166 of each of the heat dissipation fins 160 along the direction in which the two protrusions 169 are connected.
組裝該散熱器10時,該散熱鰭片組16由該基座12的一側滑入裝設 在該基座12的上表面122上,使該兩個突出部169收容於該基座12的兩個凹槽126內。將該治具20跨設於該散熱鰭片組16上,並使該治具20的兩沖頭22的刀口221分別對準該基座12的兩個抵靠部125的溝槽128位置且同時向下施加壓力,使該兩個抵靠部125向下壓制該散熱鰭片組16的突出部169的承載面170,從而將該散熱鰭片組16穩固的組裝至該基座12上,製作簡單,並可以使二者間無需塗設焊錫即可達成緊密而穩固的結合,從而節約成本且環保。由於該兩個抵靠部125分別設有溝槽128,在治具20向下同時沖擊該兩個抵靠部125的溝槽128位置而使抵靠部125向下變形壓制該散熱鰭片組16的突出部169時,可使該抵靠部125不會帶動該基座12的凸台123的上表面變形,從而可防止通過設於該兩凸台123上的安裝件將該散熱器10組裝至一電子元件上時而影響其組裝。另外,該突出部169的兩個承載面170的設置,並通過治具20向下同時沖壓該散熱器10的兩個抵靠部125,可以使其使其受力更均勻,從而增強其可靠性。同時,該承載面170的下方分別設有支撐面172,該支撐面172可加強該承載面170的承載力,從而加強該兩承載面170對該抵靠部125的支撐,進而達成二者緊密的結合。其次,由於該治具的兩沖頭22均呈板狀,因此,每一沖頭22在向下沖壓該基座12對應的抵靠部125後,會使抵靠部125與該散熱鰭片組16的突出部169形成線性緊配合,有利於增加該基座12與散熱鰭片組16的接觸面積,提高散熱器10的結合的緊固程度與散熱效率。 When the heat sink 10 is assembled, the heat dissipation fin group 16 is slidably mounted on one side of the base 12 On the upper surface 122 of the base 12, the two protrusions 169 are received in the two recesses 126 of the base 12. The jig 20 is spanned on the heat dissipating fin set 16 , and the cutting edges 221 of the two punches 22 of the jig 20 are respectively aligned with the grooves 128 of the two abutting portions 125 of the base 12 and At the same time, the pressure is applied downwards, so that the two abutting portions 125 press down the bearing surface 170 of the protruding portion 169 of the heat dissipation fin group 16 to firmly fix the heat dissipation fin group 16 to the base 12 . It is easy to manufacture and allows for a tight and stable bond without the need for soldering between the two, resulting in cost savings and environmental friendliness. Since the two abutting portions 125 are respectively provided with the grooves 128, the position of the grooves 128 of the two abutting portions 125 is simultaneously impacted downward, and the abutting portion 125 is deformed downward to press the heat dissipating fin group. When the protruding portion 169 of the portion 16 is 169, the abutting portion 125 can be prevented from deforming the upper surface of the boss 123 of the base 12, thereby preventing the heat sink 10 from being passed through the mounting members provided on the two bosses 123. Assembly onto an electronic component affects its assembly. In addition, the two bearing surfaces 170 of the protruding portion 169 are disposed, and the two abutting portions 125 of the heat sink 10 are simultaneously punched downward by the jig 20, so that the force is more uniform, thereby enhancing the reliability. Sex. At the same time, the supporting surface 172 is respectively disposed under the bearing surface 170, and the supporting surface 172 can strengthen the bearing capacity of the bearing surface 170, thereby reinforcing the supporting of the abutting portion 125 by the two bearing surfaces 170, thereby achieving close cooperation between the two. Combination of. Secondly, since the two punches 22 of the jig are plate-shaped, each punch 22 presses the corresponding abutting portion 125 of the base 12 downward, and the abutting portion 125 and the heat radiating fin are obtained. The protruding portion 169 of the group 16 forms a linear tight fit, which is advantageous for increasing the contact area of the susceptor 12 with the heat dissipation fin group 16, and improving the fastening degree and heat dissipation efficiency of the heat sink 10.
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 之申請專利範圍內。 In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and those skilled in the art will be able to cover the following modifications or variations in accordance with the spirit of the present invention. Within the scope of the patent application.
12‧‧‧基座 12‧‧‧ Pedestal
20‧‧‧治具 20‧‧‧ fixture
21‧‧‧基板 21‧‧‧Substrate
22‧‧‧沖頭 22‧‧‧ Punch
128‧‧‧溝槽 128‧‧‧ trench
166‧‧‧中間部 166‧‧‧ middle part
169‧‧‧突出部 169‧‧‧Protruding
221‧‧‧刀口 221‧‧‧ knife mouth
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TW099145974A TWI555463B (en) | 2010-12-27 | 2010-12-27 | Heat sink and manufacturing method thereof |
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TW099145974A TWI555463B (en) | 2010-12-27 | 2010-12-27 | Heat sink and manufacturing method thereof |
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TWM257610U (en) * | 2004-04-16 | 2005-02-21 | Hon Hai Prec Ind Co Ltd | Heat sink |
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2010
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5542176A (en) * | 1992-09-21 | 1996-08-06 | Hideaki Serizawa | Radiation plate and method of producing the same |
US5558155A (en) * | 1993-08-06 | 1996-09-24 | Mitsubishi Denki Kabushiki Kaisha | Cooling apparatus and assembling method thereof |
TWM257610U (en) * | 2004-04-16 | 2005-02-21 | Hon Hai Prec Ind Co Ltd | Heat sink |
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TW201228578A (en) | 2012-07-01 |
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