TWI333607B - Heat dissipation device - Google Patents

Heat dissipation device Download PDF

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TWI333607B
TWI333607B TW96118705A TW96118705A TWI333607B TW I333607 B TWI333607 B TW I333607B TW 96118705 A TW96118705 A TW 96118705A TW 96118705 A TW96118705 A TW 96118705A TW I333607 B TWI333607 B TW I333607B
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Taiwan
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heat sink
heat
positioning
base
fan
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TW96118705A
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Chinese (zh)
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TW200846883A (en
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Jun Cao
Peng Liu
Shi-Wen Zhou
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Foxconn Tech Co Ltd
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1333607 卜 99 年 六、發明說明: 【發明所屬之技術領域】 [0001] 本發明涉及一種散熱裝置及其風扇固定架,尤係一種裝 拆便捷、扣持牢固之散熱裝置及其風扇固定架。 【先前技術】 [〇〇〇2] 隨著資訊技術之飛速發展,電腦中央處理器之運算速度 越來越快,其產生之熱量亦越來越多’若不及時排除過 多之熱量,將嚴重影響十央處理器之正常運作。因此, 業界通常在中央處理器上裝設一具有良好導熱性能之熱 管散熱器,並在散熱器侧壁設置一風扇’通過風扇與散 熱器之組合來協助排除熱量。然,要將專扇快速穩固地 裝設在散熱器上並非易事。已有之風扇固芩方法很多, 大多先將風扇固定在風扇固定架上’再昶角螺絲將風扇 固定架固定在散熱器上,以達成風扇與散熱器之結合。 惟,這種風扇固定方法在安裝及拆卸風扇固定架時都需 要借助工具來完成,過程繁續,不便於安裝及更換。 【發明内容】 [0003] —種散熱裝置,包括一散熱器、一風扇及一風扇固定架 ,風扇固定架包括一本體及設於本體兩側之一第一延伸 部及垂直於該第一延伸部之一第二延伸部,該散熱器上 包括一第二定位部及一第二卡扣部,該第一延伸部與該 第二卡扣部卡扣配合,而該第二延伸部與該第二定位部 配合從而將風扇固定架組裝於散熱器上。 [0004] 與習知技術相比,第一延伸部與第二卡扣部卡扣配合、 第二延伸部與第二定位部配合從而將風扇固定架組裝於 096118705 表單編號A0101 第3頁/共15頁 0993250114-0 1333607 __ 099年07月13日修正替換頁 散熱器上,無需借助工具就可以達到很好之定位效果, 且安裝及更換都很方便。 【實施方式】 [0005] 請參閱第1圖至第5圖,係本發明散熱裝置之一實施例。 本發明散熱裴置包括一散熱器10、一風扇30及一風扇固 定架50,該風扇固定架50可將風扇30固定在散熱器10之 一側。 [0006] 散熱器10包括二間隔設置之導熱塊18、罩設於該二導熱 塊18上之一底座16、形成於底座16上方且平行於底座16 之複數散熱片11、安裝於散熱片11外部之一導風罩40及 兩組U形熱管12。每支熱管12具有一水平蒸發段及二豎直 冷凝段,且其蒸發段夾設於導熱塊18與底座16之間,而 其冷凝段穿過該底座16後,再穿設並固定於散熱片11内 。其中,該熱導熱塊18之下表面與電子元件接觸,上表 面開設有與熱管12配合之凹槽,可以將熱管12之蒸發段 緊密地固定於導熱塊18與底座16之間。 [0007] 該底座16大致為一中間設有通孔13之板體,其兩端對稱 開設有二U形缺口 17,並在通孔13與U形缺口 17之間分別 形成一連接部15,二連接部15之下表面分別開設有與熱 管12配合之平行凹槽。每支熱管12彎曲後穿過通孔13及U 形缺口 17形成一水平蒸發段及二豎直冷凝段,其水平蒸 發段容置於連接部15與導熱塊18之凹槽中,其豎直冷凝 段穿設於散熱片11中,並通過焊接或粘接等方法將散熱 片11與熱管12固定。使用時,該二導熱塊18之下表面分 別與發熱電子元件接觸,使電子元件產生之熱量由導熱 096118705 表單編號A0101 第4頁/共15頁 0993250114-0 1333.607 - 099年07月13日修正替換頁 塊18經熱管12傳送到散熱片11上,以將熱量散發到周圍 空氣中。 [0008] 此外,在底座16上臨近連接部15處分別設有二第二定位 部14,且當散熱片11組裝在熱管12上之後,該二第二定 位部14位於散熱片11之外部,在本實施例中該第二定位 部14為與散熱片11同側之二定位槽。另外,在底座16之 相對兩側壁上分別形成二固定孔19,該固定孔19用於固 定導風罩40。 [0009] 導風罩40為大致呈η形之彈性體,其包括一上板41及由上 板41相對兩側垂直向下延伸形成之二側板4 3、4 5。上板 41可劃分為兩對稱之矩形片:嫜及中間一稍微向下凹陷之 凹陷部組成。在凹陷部上設有一第二卡扣鄭4 7,在本實 施例中,該第二卡扣部47為一定位槽。側板43、45下端 向内彎折而分別形成階梯部431、451,在階梯部431、 451之最下端分別對稱開設有二螺孔44,該四螺孔44與底 座16側壁上之固定孔19相對應。將導風罩40組裝於底座 16上時,先將導風罩40兩侧邊之二側板43、45向外扳開 ,使散熱片11收容在導風罩40之上板41、側板43、45形 , 成之空間中,並使最上端之散熱片11與上板41留有一定 距離;再慢慢鬆開二側板43、45,則二側板43、45分別 與散熱片11兩側相貼合,且階梯部431、451與最下端之 散熱片11之下端相抵,然後令四個螺釘20通過四螺孔44 旋入底座16之四固定孔19中,從而將導風罩40卡固在底 座16上,進而組成上述散熱器10 »該導風罩40可將風扇 30產生之氣流導向散熱片11,加速兩者之間之熱交換效 096118705 表單編號Α0101 第5頁/共15頁 0993250114-0 1333607 099年07月13日俊正替换百 果。 [0010] 風扇30包括一大致呈橢圓狀之環狀本體,在其本體之一 側均勻開有三個定位孔34,在另一側對應中間位置開有 一第四個定位孔34。 [0011] 風扇固定架50包括一大致呈橢圓狀之環狀本體51、從本 體51—側沿垂直於本體51方向延伸而出、平直之一第一 延伸部55及從本體51相對另一側沿平行於本體51方向延 伸而出之一第二延伸部53。 [0012] 該第一延伸部55上形成有一第一卡扣部57,在本實施例 中,該第一卡扣部57為倒勾結構,該第一卡扣部5 7可與 導風罩40之第二卡扣部47卡扣配合。第二延伸部53垂直 於該第一延伸部55,且該第二延伸部53上形成有第一定 位部54,在本實施例中,第一定位部54為對稱設置之二 定位片。 [0013] 此外,在風扇固定架50上設有與風扇30之四個定位孔34 分別對應之四個螺孔52,該四個定位孔34及相應之螺孔 52通過螺釘36連接,從而將風扇30固定在風扇固定架50 〇 [0014] 將風扇固定架50及其上之風扇30組裝于散熱器10時,風 扇固定架50—端之第一延伸部55滑入導風罩40上板41之 凹陷部内,並令第一卡扣部57與導風罩40上板41之第二 卡扣部47卡扣並與散熱片11相抵,風扇固定架50另一端 之第一定位部54插入並收容於底座16之第二定位部14中 ,從而將風扇30、風扇固定架50及散熱器10穩固結合在 096118705 表單編號Α0101 第6頁/共15頁 0993250114-0 1333607 一起0 099年07月13日 [0015] 拆卸時’輕輕拿起 ⑼屬固定架50本體51 —端之第一延伸 部5 5,使其第一卡l r 夺。P57從導風罩4〇上板41之第二卡扣 部47中脫離,然後& ^ * 1无同上輕移風扇固定架50之本體51,使 八第疋位口P54從底座16之第二定位部“中分離從而 [0016] 實現風扇3G及其固定架與散熱器1D之拆卸。 ,不上所述本發明散熱器裝置中,在底板16下之二導熱 塊18分別與發熱電子元件相接觸,可同時對兩個電子元 件進行散熱。風細定架5Q通過其_端之第一卡扣部57 與位於散熱sio頂部之第三卡扣部47卡扣固定,並令其 另一端之第一定位部5 4收容於散熱器丨〇底部之第二定位 414中’可便捷的將風扇3〇固定於散熱器:1〇上;拆卸時 ,不需借助任何工具,而僅需令第一卡扣部57與第二卡 扣部47分離即可將散熱器1〇與風扇固定架5〇分離,這樣 ,既方便安裝又便於更換,適合大量_產。 [0017] 可以理解地,上述實施例中之第二卡扣部47係設於導風 罩40上板41之定位槽結構:當然,第二卡扣部47也可以 係設在臨近導風罩40上板41之一散熱片11上之溝槽結構 [0018] 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 倚或變化,皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 096118705 表單編號A0101 第7頁/共15頁 0993250114-0 1333607 099年07月13日修正替换頁 [0019] 第1圖係散熱裝置及其風扇固定架之立體組裝圖。 [0020] 第2圖係第1圖之分解圖。 [0021] 第3圖係第2圖中風扇與固定架之組裝圖。 [0022] 第4圖係風扇固定架之立體圖。 [0023] 第5圖係第1圖散熱器分解圖。 【主要元件符號說明】 [0024] 散熱器:10 [0025] 熱管:12 [0026] 第二定位部: 14 [0027] 底座:16 [0028] 導熱塊:18 [0029] 螺釘:20 [0030] 定位孔:34 [0031] 上板:41 [0032] 階梯部:431 、451 [0033] 第二卡扣部: 47 [0034] 螺孔:52 [0035] 風扇固定架本體:51 [0036] 第一延神部: 55 [0037] 散熱片:11 表單編號A0101 096118705 第8頁/共15頁 0993250114-0 1333.607 [0038] 通孔: 13 [0039] 連接部 :15 [0040] 缺口: 17 [0041] 固定孔 :19 [0042] 風扇: 30 [0043] 導風罩 :40 [0044] 側板: 43 ' 45 [0045] 螺孔: 44 [0046] 風扇固定架 :50 [0047] 第二延伸部 :53 [0048] 第一定位部 :54 [0049] 第--^扣部 :57 096118705 表單编號A0101 第9頁/共15頁 099年07月13日核正替换頁 0993250114-01333607 卜99年六的发明说明: [Technical Field] [0001] The present invention relates to a heat dissipating device and a fan fixing frame thereof, and more particularly to a heat dissipating device which is convenient to assemble and disassemble and securely fastened, and a fan fixing frame thereof. [Prior Art] [〇〇〇2] With the rapid development of information technology, the computing speed of computer central processing units is getting faster and faster, and the heat generated by them is increasing. 'If you do not eliminate excessive heat in time, it will be serious. Affect the normal operation of the Ten Central Processor. Therefore, the industry usually installs a heat pipe heat sink with good thermal conductivity on the central processing unit, and a fan is disposed on the side wall of the heat sink to assist in the elimination of heat through a combination of a fan and a heat sink. However, it is not easy to install the fan on the radiator quickly and steadily. There are many methods for fixing the fan. Most of the fans are fixed on the fan holder. The corner screws are used to fix the fan holder to the heat sink to achieve the combination of the fan and the heat sink. However, this fan fixing method requires tools to complete the installation and removal of the fan holder. The process is complicated and it is not easy to install and replace. [0003] A heat sink device includes a heat sink, a fan, and a fan holder. The fan holder includes a body and a first extension portion disposed on one side of the body and perpendicular to the first extension. a second extension portion, the heat sink includes a second positioning portion and a second fastening portion, the first extension portion is snap-fitted with the second fastening portion, and the second extension portion is coupled to the second extension portion The second positioning portion cooperates to assemble the fan holder to the heat sink. [0004] Compared with the prior art, the first extension portion and the second buckle portion are snap-fitted, and the second extension portion is engaged with the second positioning portion to assemble the fan holder to the 096118705 Form No. A0101 Page 3 / Total Page 15 0993250114-0 1333607 __ On July 13, 2008, the replacement page heatsink can be used to achieve good positioning without tools, and it is easy to install and replace. [Embodiment] [0005] Referring to Figures 1 to 5, an embodiment of a heat sink of the present invention is shown. The heat dissipation device of the present invention comprises a heat sink 10, a fan 30 and a fan fixing frame 50. The fan holder 50 can fix the fan 30 on one side of the heat sink 10. The heat sink 10 includes two spaced apart heat conducting blocks 18, a base 16 disposed on the two heat conducting blocks 18, a plurality of heat sinks 11 formed above the base 16 and parallel to the base 16, and mounted on the heat sink 11 One of the outer air hoods 40 and two sets of U-shaped heat pipes 12. Each heat pipe 12 has a horizontal evaporation section and two vertical condensation sections, and the evaporation section is sandwiched between the heat conduction block 18 and the base 16, and the condensation section passes through the base 16, and is then disposed and fixed to the heat dissipation. Inside the film 11. The lower surface of the thermal block 18 is in contact with the electronic component, and the upper surface is provided with a groove for cooperating with the heat pipe 12, so that the evaporation section of the heat pipe 12 can be tightly fixed between the heat conducting block 18 and the base 16. The base 16 is substantially a plate body having a through hole 13 in the middle thereof, and two U-shaped notches 17 are symmetrically opened at two ends thereof, and a connecting portion 15 is formed between the through hole 13 and the U-shaped notch 17 respectively. The lower surfaces of the two connecting portions 15 are respectively provided with parallel grooves that cooperate with the heat pipes 12. Each of the heat pipes 12 is bent to form a horizontal evaporation section and two vertical condensation sections through the through holes 13 and the U-shaped notches 17, and the horizontal evaporation section is accommodated in the grooves of the connecting portion 15 and the heat conducting block 18, and the vertical portion thereof is vertical The condensation section is bored in the heat sink 11, and the heat sink 11 and the heat pipe 12 are fixed by welding or bonding. In use, the lower surface of the two heat-conducting blocks 18 are respectively in contact with the heat-generating electronic components, so that the heat generated by the electronic components is replaced by heat-transfer 096118705 Form No. A0101 Page 4/15 pages 0993250114-0 1333.607 - July 13, 2004 The page block 18 is transferred to the heat sink 11 via the heat pipe 12 to dissipate heat into the surrounding air. In addition, two second positioning portions 14 are respectively disposed on the base 16 adjacent to the connecting portion 15 , and after the heat sink 11 is assembled on the heat pipe 12 , the second positioning portions 14 are located outside the heat sink 11 . In the embodiment, the second positioning portion 14 is a positioning groove on the same side of the heat sink 11 . Further, two fixing holes 19 are formed on the opposite side walls of the base 16, and the fixing holes 19 are for fixing the air guiding cover 40. [0009] The air hood 40 is a substantially n-shaped elastic body including an upper plate 41 and two side plates 43 and 45 extending vertically from opposite sides of the upper plate 41. The upper plate 41 can be divided into two symmetrical rectangular pieces: a ridge and a depression in the middle which is slightly recessed downward. A second buckle Zheng 47 is provided on the recessed portion. In the embodiment, the second latching portion 47 is a positioning groove. The lower ends of the side plates 43 and 45 are bent inwardly to form step portions 431 and 451, respectively. Two screw holes 44 are symmetrically opened at the lowermost ends of the step portions 431 and 451, and the four screw holes 44 and the fixing holes 19 on the side walls of the base 16 are respectively provided. Corresponding. When the windshield 40 is assembled on the base 16, the two side plates 43 and 45 on both sides of the air guiding cover 40 are outwardly opened, so that the heat sink 11 is received on the upper surface 41 and the side plate 43 of the air guiding cover 40. 45-shaped, in the space, and the uppermost heat sink 11 and the upper plate 41 are left at a certain distance; and then slowly loosen the two side plates 43, 45, the two side plates 43, 45 respectively and the two sides of the heat sink 11 Fitted, and the stepped portions 431, 451 are in contact with the lower end of the lowermost fins 11, and then the four screws 20 are screwed into the four fixing holes 19 of the base 16 through the four screw holes 44, thereby clamping the air guiding cover 40. On the base 16, the heat sink 10 is further formed. The air deflector 40 guides the airflow generated by the fan 30 to the heat sink 11 to accelerate the heat exchange between the two. 096118705 Form No. 1010101 Page 5 / Total 15 Page 0993250114 -0 1333607 On July 13, 099, Junzheng replaced the fruit. [0010] The fan 30 includes a substantially elliptical annular body having three positioning holes 34 uniformly on one side of the body and a fourth positioning hole 34 on the other side corresponding to the intermediate position. [0011] The fan holder 50 includes a substantially elliptical annular body 51 extending from the side of the body 51 in a direction perpendicular to the body 51, one of the straight first extensions 55 and the other from the body 51 The side edges extend parallel to the direction of the body 51 to form a second extension 53. A first latching portion 57 is formed on the first extending portion 55. In the embodiment, the first latching portion 57 is a barb structure, and the first latching portion 57 can be coupled to the air guiding cover. The second latching portion 47 of the 40 is snap-fitted. The second extending portion 53 is perpendicular to the first extending portion 55, and the second extending portion 53 is formed with a first positioning portion 54. In the embodiment, the first positioning portion 54 is a symmetrically disposed two positioning piece. [0013] In addition, four screw holes 52 corresponding to the four positioning holes 34 of the fan 30 are respectively disposed on the fan fixing frame 50, and the four positioning holes 34 and the corresponding screw holes 52 are connected by screws 36, thereby The fan 30 is fixed to the fan holder 50. [0014] When the fan holder 50 and the fan 30 thereon are assembled to the heat sink 10, the first extension 55 of the fan holder 50 is slid into the upper cover of the air hood 40. The first latching portion 57 is engaged with the second latching portion 47 of the upper cover 41 of the air guiding cover 40 and abuts against the heat sink 11 , and the first positioning portion 54 of the other end of the fan mounting bracket 50 is inserted. And is received in the second positioning portion 14 of the base 16, so that the fan 30, the fan holder 50 and the heat sink 10 are firmly combined at 096118705 Form No. 1010101 Page 6 / Total 15 Page 0993250114-0 1333607 Together 0 099 July 13th [0015] When disassembling, 'slightly pick up (9) the first extension 5 5 of the body 51 of the holder 50 to make the first card lr. The P57 is disengaged from the second buckle portion 47 of the upper hood 4 of the air hood 4, and then & ^ * 1 is the same as the body 51 of the fan holder 50, so that the occupant position P54 is from the base 16 The second positioning portion is "separated and thus [0016] realizes the disassembly of the fan 3G and its fixing frame and the heat sink 1D. In the heat sink device of the present invention, the two heat conducting blocks 18 under the bottom plate 16 respectively and the heat generating electronic components When the two contacts are in contact with each other, the two electronic components can be dissipated at the same time. The air cooling frame 5Q is fastened by the first fastening portion 57 at the _ end thereof and the third fastening portion 47 at the top of the heat dissipation sio, and the other end is fixed. The first positioning portion 514 is received in the second positioning 414 at the bottom of the heat sink ' 'the fan 3 便捷 can be conveniently fixed to the heat sink: 1 ;; when disassembling, no tools are needed, but only need to be The first latching portion 57 is separated from the second latching portion 47 to separate the heat sink 1〇 from the fan holder 5〇, which is convenient for installation and easy to replace, and is suitable for mass production. [0017] It is understood that The second fastening portion 47 of the above embodiment is disposed on the positioning groove structure of the upper 41 of the air hood 40: However, the second fastening portion 47 can also be disposed on the groove structure adjacent to the heat sink 11 of the upper cover 41 of the air hood 40. [0018] In summary, the present invention conforms to the patent requirements of the invention, and is patented according to law. The above is only the preferred embodiment of the present invention, and those skilled in the art will be able to cover the equivalent of the invention in the spirit of the present invention. [Simple description of the drawing] 096118705 Form No. A0101 Page 7 of 15 0993250114-0 1333607 Correction replacement page of July 13, 099 [0019] Fig. 1 is an assembled view of the heat sink and its fan holder. 2 is an exploded view of Fig. 1. [0021] Fig. 3 is an assembled view of a fan and a holder in Fig. 2. [0022] Fig. 4 is a perspective view of a fan holder. Figure 5 is an exploded view of the heat sink of Figure 1. [Main component symbol description] [0024] Heat sink: 10 [0025] Heat pipe: 12 [0026] Second positioning part: 14 [0027] Base: 16 [0028] Thermal block :18 [0029] Screw: 20 [0030] Positioning hole: 34 [0031] Upper plate: 41 Steps: 431, 451 [0033] Second snap: 47 [0034] Screw hole: 52 [0035] Fan holder body: 51 [0036] First extension: 55 [0037] Heat sink :11 Form No. A0101 096118705 Page 8 of 15 0993250114-0 1333.607 [0038] Through hole: 13 [0039] Connection: 15 [0040] Notch: 17 [0041] Fixing hole: 19 [0042] Fan: 30 [0043] Air hood: 40 [0044] Side panel: 43 '45 [0045] Screw hole: 44 [0046] Fan holder: 50 [0047] Second extension: 53 [0048] First positioning part: 54 [ 0049] The first --- button part: 57 096118705 Form number A0101 Page 9 / a total of 15 pages 099 July 13 nuclear replacement page 0993250114-0

Claims (1)

1333607 _ 099年07月13日俊正番換頁 七、申請專利範圍: 1 . 一種散熱裝置,包括一散熱器、一風扇、一風扇固定架及 一導風罩,其改良在於:該風扇固定架包括一本體,設於 該本體兩側之一第一延伸部及垂直於該第一延伸部之一第 二延伸部,該第一延伸部上設有一第一卡扣部,該第二延 伸部上設有第一定位部,該散熱器包括位於其底部之一底 座,該底座上設有一第二定位部,該導風罩包括一上板, 該上板上有一第二卡扣部,其中,該第一卡扣部為倒勾結 構、第二卡扣部為一定位槽,該第一定位部為至少一定位 片、第二定位部為至少一定位槽,該第一卡扣部與該第二 卡扣部卡扣配合,而該第一定位部與該第二定位部配合從 而將風扇固定架組裝於散熱器上。 2.如申請專利範圍第1項所述之散熱裝置,其中該第一延伸 部係從本體一側沿垂直於本體方向延伸而出;而第二延伸 部係從本體.另一側沿平行於本體方向延伸而出。 3 .如申請專利範圍第1項所述之散熱裝置,其中該上板上設 有一向下凹陷之凹陷部,第二卡扣部設於凹陷部内。 4. 如申請專利範圍第3項所述之散熱裝置,其中該導風罩還 包括從上板兩側垂直向下延伸形成之二側板,該側板下端 分別設有向内彎曲而形成之階梯部,該階梯部抵接散熱片 之最下端,於二階梯部最下端分別對稱開設有二螺孔,螺 釘通過階梯部之螺孔及散熱器底座上之定位孔將導風罩固 定於散熱器上。 5. 如申請專利範圍第1項所述之散熱裝置,其中該散熱器之 底座大致為一中間開有通孔之板體,且其兩端對稱的開設 096118705 表單編號A0101 第10頁/共15頁 0993250114-0 1333607 099年07月13日按正替换頁 有二U形缺口,並在通孔與U形缺口之間分別形成一連接部 ,該散熱器還包括至少兩熱管,每一熱管包括位於底座下 方之一水平段及分別穿過底座之通孔及一端之凹槽之二豎 直段。 6.如申請專利範圍第5項所述之散熱裝置,其中該散熱器還 包括位於底座下之二導熱塊,熱管之水平段夾設於連接部 與導熱塊之間。 096118705 表單編號A0101 第11頁/共15頁 0993250114-01333607 _ July 13, 1999, Jun Zheng Fan page 7, the scope of application for patents: 1. A heat sink, including a radiator, a fan, a fan holder and an air hood, the improvement is that the fan holder includes a first extension portion disposed on one side of the main body and a second extension portion perpendicular to the first extension portion, wherein the first extension portion is provided with a first fastening portion, and the second extension portion is disposed on the second extension portion a first positioning portion is disposed, the heat sink includes a base at a bottom thereof, and the base is provided with a second positioning portion, the air guiding cover includes an upper plate, and the upper plate has a second locking portion, wherein The first fastening portion is a hooking structure, and the second fastening portion is a positioning slot. The first positioning portion is at least one positioning piece, and the second positioning portion is at least one positioning slot, and the first fastening portion is The second fastening portion is snap-fitted, and the first positioning portion cooperates with the second positioning portion to assemble the fan holder to the heat sink. 2. The heat sink of claim 1, wherein the first extension extends from a side of the body along a direction perpendicular to the body; and the second extension is from the body. The other side is parallel to The body direction extends out. 3. The heat dissipating device of claim 1, wherein the upper plate is provided with a downwardly recessed recess, and the second snap portion is disposed in the recess. 4. The heat dissipating device of claim 3, wherein the air guiding cover further comprises two side plates extending vertically downward from both sides of the upper plate, and the lower ends of the side plates are respectively provided with steps formed by inward bending The step portion abuts the lowermost end of the heat sink, and two screw holes are symmetrically opened at the lowermost ends of the two step portions, and the screw fixes the air guiding cover to the heat sink through the screw holes of the step portion and the positioning holes on the heat sink base . 5. The heat sink according to claim 1, wherein the base of the heat sink is substantially a plate body having a through hole in the middle thereof, and the two ends thereof are symmetrically opened 096118705 Form No. A0101 Page 10 of 15 Page 0993250114-0 1333607 On July 13, 099, there is a U-shaped notch according to the replacement page, and a connection portion is formed between the through hole and the U-shaped notch respectively. The heat sink further includes at least two heat pipes, and each heat pipe includes A horizontal section located below the base and two vertical sections respectively passing through the through hole of the base and the groove of one end. 6. The heat sink of claim 5, wherein the heat sink further comprises two heat conducting blocks under the base, and the horizontal section of the heat pipe is sandwiched between the connecting portion and the heat conducting block. 096118705 Form No. A0101 Page 11 of 15 0993250114-0
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