201228585 六、發明說明： 【發明所屬之技彳标領域】 本發明主要關於一種散熱器 之散熱器。 尤指一 種具有疊置風扇 【先前技術】 统現維動晝或是電玩等技術快速發展，電腦, •，先而要更向效能之顯示卡才能處理魔 電月以 得顯示卡產生龐大的熱量。為 卡’’也因此孩 通常會裝設散熱模組於顯示卡上。、』不卡的放熱問題， 請參閱第1目’為習知之顯 置U包括-顯示卡2a盘 裝置之立肢圖。顯示裝 於顯示卡。上，散熱模組3a設置 用離、、4' n ^ 内设有一離心式風扇4a，利 用離〜式風扇4a快逮旋轉以沿 利 氣，之德办今士姑, 虱抓方向D1吸入空 % 3a内： 式風扇心之周圍流出，並吹向散敎模 、'且3a内部之散埶鳑片f 人丨彳舣…衩 然而，由於現::未不），以幫助顯示卡2a散熱。 要提古||、·ν π 7，、、討2a所產生之熱量過大，因此需 耷知回離心式風扇4a 而 散熱效能〜„ 才b相顯不卡2a所需之 屬知所產心式風扇^之轉速提高後，離心式風 擾。 *音會急劇增加’會對使用者造成噪音干 201228585 【發明内容】 當習知之離心式風扇轉速很高時，離心式風扇會無法 吸入足夠之空氣，造成了離心式風扇内部之氣壓較低，進 而影響了離心式風扇的出風量。也由於高轉速時之出風量 無法有效的提升，因此離心式風扇需要進一步增加轉速以 增加出風量，但這會使得嗓音量一併提昇。 為了解決上述習知技術之缺失，本發明之目的係提供 一種具有疊置風扇之散熱器，其包括一離心式風扇與一軸 鲁流式風扇，軸流式風扇疊置於離心式風扇之一側，以使軸 流式風扇所吹出之氣流吹向離心式風扇，以增加離心式風 扇内部之氣壓，使得離心式風扇能於不進一步提高轉速下 提高出風量。因此本發明能以較低的轉速運作離心式風扇 與軸流式風扇，進而降低整體散熱器所產生之噪音。 為了達到上述之目的，本發明係提供一種具有疊置風 扇之散熱器，包括一離心式風扇、與一軸流式風扇，也可 進一步包括一外殼體，其内部設有一容置空間。離心式風 ® 扇設置於外殼體内部之容置空間，並設有一進風側。軸流 式風扇樞接於外殼體之外侧以及離心式風扇之進風側。其 中軸流式風扇可選擇性地被驅動，當軸流式風扇被驅動 時，轴流式風扇所吹出之氣流吹向離心式風扇之進風側， 離心式風扇與軸流式風扇均沿一旋轉轴旋轉。 為了達到上述之目的，本發明另提供一種顯示裝置， 包括一顯示卡、一離心式風扇、與一轴流式風扇。顯示卡 具有一發熱元件’離心式風扇具有一進風侧’且離心式風 201228585 扇設置於顯示卡具有發熱元件之一侧，該離心式風扇產生 之氣流由進風側進入後導向顯示卡對顯示卡上之晶片散 熱。軸流式風扇設置於離心式風扇之進風侧，其中軸流式 風扇所吹出之氣流吹向離心式風扇之進風侧。 綜上所述，由於離心式風扇内部之氣壓可被軸流式風 扇所增加，因此離心式風扇可相較於習知技術，於相同之 轉速下，更容易吸入空氣，進而產生更多之出風量。因此 本發明之軸流式風扇與離心式風扇可採用較小的轉速，達 到較佳之散熱效果，進而有效的降低整體散熱器所產生之 噪音，以減少對使用者之。喿音干擾。 【實施方式】 請參閱第2圖與第3圖，第2圖為本發明之顯示裝置 100之立體圖，第3圖為本發明之顯示裝置100之分解圖。 顯示裝置100包括一顯示卡1與一具有疊置風扇之散熱器 2。顯示卡1包括一發熱元件11，發熱元件11可為一處理 晶片。具有疊置風扇之散熱器2設置於顯示卡1具有處理 晶片11之一側，散熱器2包括一外殼體3、一離心式風扇 4、與一軸流式風扇5。 外殼體3可進一步包括一第一殼體31與一第二殼體 32，第一殼體31設置於顯示卡1之一側。第一殼體31設 有一第一安裝部311與一第二安裝部312。第二殼體32蓋 合於第一殼體31，並於第一殼體31與第二殼體32之間形 成一容置空間S1。換句話說，外殼體内部具有容置空間 201228585 SI，第一安裝部311與第二安裝部312位於容置空間SI 内。於另一實施例中，第一殼體31與第二殼體32係可一 體成形。 於本實施例中，可將一鰭片單元33設置於第一安裝部 311，並容置於容置空間S1内，其中鰭片單元33，可由複 數個鰭片331所組成，鰭片331彼此平行與間隔排列。 第二殼體32設有一外側面321與一内側面322，外側 面321與内側面322分別設置於第二殼體32之兩相反側。 φ 外側面321凹設有一容置槽323，由容置槽323之底部開 設一通風口 324與一樞接槽325。通風口 324係對應於離 心式風扇4與轴流式風扇5。樞接槽325之侧壁設有--^ 合結構3251。第二殼體32之内側面322設有一開口 326， 開口 326與容置空間S1相互連通。 離心式風扇4設置於外殼體3内部之容置空間S1與第 二安裝部312，以設置於該顯示卡1具有發熱元件11之一 側，並相鄰於鰭片單元33。離心式風扇4設有一進風側41 • 與一安裝側42，進風侧41與安裝側42分別設置於離心式 風扇4之兩相反侧，進風側41對應於通風口 324，安裝側 42設置於第二安裝部312，離心式風扇4產生之氣流由進 風側41往發熱元件11方向流動。離心式風扇4包括一離 心式輪轂43與複數個離心式扇葉44。離心式扇葉44相互 間隔地設置於離心式輪轂43周圍。離心式輪穀43與離心 式扇葉44均可沿一旋轉轴AX旋轉，並由進風側41吸入 空氣，並由離心式扇葉44之侧邊吹出。進風侧41與安裝 201228585 側本上垂直於旋轉轴Ax延伸β 扇5可樞接於外殼體3，而設置於第二殼體 =谷置槽323内，並位於離心風扇4之進風側41。轴 以有-人風面51與—出風面52，入風面51與 出風面52分s丨丨机$ 垂 & j叹置於軸流式風扇5之兩相反側，並可分別 於方疋轉轴AX ’出風面52對應於通風口 324與離心式 風屬4之進風側41。 元5^凌式風扇5可包括一風扇殼體53與一軸流式風扇單 323 。風扇殼體53可設置於第二殼體32外側之容置槽 風肩I殼體53亦可包括一樞接部531，樞接部531可 由出風而π 532，。 延伸出。樞接部531之側邊設有一扣合結構 構5樞接部531係可轉動地設置於枢接槽325内，扣合結 可係可轉動地扣合於卡合結構3251，因此風扇殼體53 '、、由樞接部531樞接於第二殼體32。 使用者^流式風扇5可輕易地安裝或拆卸於外殼體3 , 風扇求選擇是否安裝軸流式風扇5。惟軸流式 式風屬4 式不以此為限’軸流式風扇5亦可與離心 可為卡扣了::裝於殼體内’固定方式亦不限於樞設，亦 扇5相對齙、、 饤可將軸流式風 風扇4安裝之方式皆適用本發明。 是離可將轴流式？5相對於第二殼㈣或 可吹“扇斜，以使軸式風扇5所吹出之… D畋熱器2附近之區域與離心式 工米， 強散熱哭） 風扇4，進而一併加 °。2附近區域的散熱效能。 201228585 由第2圖亦可看出，風扇殼體53之入風面51與第二 殼體32之外側面321位於同一平面上，換句話說，風扇殼 體53並不凸出於第二殼體32，可增加散熱器2整體之美 觀。 軸流式風扇單元54設置於風扇殼體53内並可沿旋轉 軸AX旋轉。軸流式風扇單元54包括一軸流式輪轂541與 複數個軸流式扇葉542。軸流式輪轂541可沿旋轉軸AX 旋轉，軸流式扇葉542可由軸流式輪轂541之側壁輻射狀 φ 地延伸出。當軸流式風扇單元54旋轉時可由入風面51吸 入空氣，並由出風面52排出。 另請一併參考第4圖，第4圖為本發明之顯示裝置100 之剖視示意圖。當離心式風扇4與軸流式風扇5沿旋轉軸 AX旋轉時，軸流式風扇5可沿平行於旋轉軸AX之第一氣 流方向D1吸入空氣，以產生第一氣流F1。第一氣流F1 由入風面51進入軸流式風扇5，並由出風面52吹出至軸 流式風扇5。最後，第一氣流F1由離心式風扇4之進風側 • 41進入離心式風扇4之内部，進而增加離心式風扇4内部 之氣壓。 之後，離心式風扇4可沿一第二氣流方向D2，產生第 二氣流F2，第二氣流F2由離心式風扇4之侧邊吹出，吹 向鰭片單元33，以幫助鰭片單元33散熱。其中第二氣流 方向D2垂直於第一氣流方向D1。 此外，於本實施例中，軸流式風扇5可選擇性地被驅 動，以節省耗電量。舉例而言，當顯示卡1之處於低負載 201228585 時，由於發熱元件η之發熱量不高，因此離 本身之轉速不高，進而不會產生過大之噪音’因此 前述之條件下不驅動轴流式風扇-以達到節;= 綜上所述，由於離心式風扇内部之氣壓可 扇所增因此離心式風扇可和f知技術於相同 下’更容易吸入空氣’進而產生更多之出風量。因此本 明之轴流式風扇與離心式風扇可採用較小的轉速，達躲 :之散熱效果，進而有效的降低整體散熱器所產生之‘ ® ’以減少對使用者之噪音干擾。 木 本發明雖以各種實施例揭露如上，然而其僅為 考而非用以限定本發明的範圍，任何熟習此項技蔽者’在 不脱離本發明之精神和範#可做些許的更動與潤 。▲因此上述實施例並非用錄定本發明之範圍，本發明 之保遵视圍當視後附之申請專利範圍所界定者為準。201228585 VI. Description of the invention: [Technical target field to which the invention pertains] The present invention relates to a heat sink of a heat sink. Especially for a kind of superimposed fan [previous technology] technology such as video game or video game, rapid development, computer, •, first, more effective performance of the graphics card to deal with the magic electricity month to get a huge amount of heat generated by the display card . Therefore, the card is usually installed on the display card. For the problem of exothermic heat of the card, please refer to the first item's display of the conventional U-included display device 2a disk device. The display is attached to the display card. On the upper side, the heat dissipation module 3a is provided with a centrifugal fan 4a disposed within 4' n ^, and the fan 4a is quickly caught by the fan 4a to take advantage of the gas, and the German Sergeant is in the direction of the D1. Within % 3a: The fan is flowing around the heart and blows to the stencil, 'and the inside of the 3a f f 丨彳舣 衩 衩 衩 衩 衩 衩 衩 衩 由于 由于 由于 由于 由于 由于 由于 由于 由于 由于 由于 由于 由于 由于 由于 由于 以 以 以 以 以 以 以 以 以. To increase the heat generated by the ancient ||, · ν π 7, and 2a, it is necessary to know the heat of the centrifugal fan 4a and the heat dissipation performance ~ „ After the speed of the fan is increased, the centrifugal wind disturbance will be increased. * The sound will increase sharply, which will cause noise to the user. 201228585 [Invention content] When the centrifugal speed of the conventional centrifugal fan is high, the centrifugal fan will not be able to inhale enough. The air causes the air pressure inside the centrifugal fan to be low, which affects the air volume of the centrifugal fan. Also, since the air volume at high speed cannot be effectively increased, the centrifugal fan needs to further increase the rotational speed to increase the air volume, but This will increase the volume of the cymbal. In order to solve the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a radiator with a stacked fan, which comprises a centrifugal fan and a shaft Luliu fan, an axial fan stack Placed on one side of the centrifugal fan to blow the airflow from the axial fan to the centrifugal fan to increase the air pressure inside the centrifugal fan, so that the centrifugal fan The airflow is increased without further increasing the rotational speed. Therefore, the present invention can operate the centrifugal fan and the axial flow fan at a lower rotational speed, thereby reducing the noise generated by the integral heat sink. In order to achieve the above object, the present invention provides a The heat sink with the stacked fan includes a centrifugal fan and an axial fan, and may further include an outer casing, and an accommodating space is disposed therein. The centrifugal wind fan is disposed inside the outer casing. The space is provided with an air inlet side. The axial flow fan is pivotally connected to the outer side of the outer casing and the air inlet side of the centrifugal fan. The axial flow fan is selectively driven when the axial flow fan is driven. The airflow blown by the axial fan blows toward the air inlet side of the centrifugal fan, and both the centrifugal fan and the axial fan rotate along a rotating shaft. To achieve the above object, the present invention further provides a display device including a display Card, a centrifugal fan, and an axial fan. The display card has a heating element 'centrifugal fan has an air inlet side' and centrifugal wind 201228585 The display card has one side of the heating element, and the airflow generated by the centrifugal fan enters the air inlet side to guide the display card to dissipate heat to the wafer on the display card. The axial flow fan is disposed on the air inlet side of the centrifugal fan, wherein The airflow blown by the axial fan blows toward the air inlet side of the centrifugal fan. In summary, since the air pressure inside the centrifugal fan can be increased by the axial fan, the centrifugal fan can be compared with the conventional technology. At the same speed, it is easier to take in air and generate more air output. Therefore, the axial flow fan and the centrifugal fan of the present invention can adopt a smaller rotation speed to achieve better heat dissipation effect, thereby effectively reducing the overall efficiency. The noise generated by the heat sink is used to reduce the noise of the user. [Embodiment] Please refer to FIG. 2 and FIG. 3, and FIG. 2 is a perspective view of the display device 100 of the present invention, and FIG. An exploded view of the inventive display device 100. The display device 100 includes a display card 1 and a heat sink 2 having a stacked fan. The display card 1 includes a heat generating component 11 which can be a processing wafer. The heat sink 2 having a stacked fan is disposed on one side of the display card 1 having the processing wafer 11, and the heat sink 2 includes an outer casing 3, a centrifugal fan 4, and an axial fan 5. The outer casing 3 may further include a first casing 31 and a second casing 32. The first casing 31 is disposed on one side of the display card 1. The first housing 31 is provided with a first mounting portion 311 and a second mounting portion 312. The second housing 32 covers the first housing 31 and forms an accommodation space S1 between the first housing 31 and the second housing 32. In other words, the inside of the outer casing has an accommodation space 201228585 SI, and the first mounting portion 311 and the second mounting portion 312 are located in the accommodating space SI. In another embodiment, the first housing 31 and the second housing 32 can be integrally formed. In this embodiment, a fin unit 33 can be disposed in the first mounting portion 311 and accommodated in the accommodating space S1. The fin unit 33 can be composed of a plurality of fins 331, and the fins 331 are mutually Parallel and spaced. The second housing 32 is provided with an outer side surface 321 and an inner side surface 322. The outer side surface 321 and the inner side surface 322 are respectively disposed on opposite sides of the second housing 32. A venting groove 323 is defined in the outer surface 321 of the φ, and a vent 324 and a pivoting groove 325 are defined in the bottom of the accommodating groove 323. The vent 324 corresponds to the centrifugal fan 4 and the axial fan 5. The side wall of the pivoting groove 325 is provided with a structure 3251. The inner side surface 322 of the second casing 32 is provided with an opening 326, and the opening 326 communicates with the accommodating space S1. The centrifugal fan 4 is disposed in the accommodating space S1 and the second mounting portion 312 inside the outer casing 3 to be disposed on one side of the display card 1 having the heat generating component 11 and adjacent to the fin unit 33. The centrifugal fan 4 is provided with an air inlet side 41 and a mounting side 42, the air inlet side 41 and the mounting side 42 are respectively disposed on opposite sides of the centrifugal fan 4, and the air inlet side 41 corresponds to the vent 324, and the installation side 42 Provided in the second mounting portion 312, the airflow generated by the centrifugal fan 4 flows from the air inlet side 41 toward the heat generating element 11. The centrifugal fan 4 includes a centrifugal hub 43 and a plurality of centrifugal blades 44. The centrifugal blades 44 are disposed around the centrifugal hub 43 at intervals. Both the centrifugal volute 43 and the centrifugal fan blade 44 are rotatable along a rotation axis AX, and the air is taken in by the air inlet side 41 and blown out by the side of the centrifugal fan blade 44. The air inlet side 41 and the installation 201228585 side are perpendicular to the rotation axis Ax, and the β fan 5 is pivotally connected to the outer casing 3, and is disposed in the second casing=valley groove 323, and is located on the air inlet side of the centrifugal fan 4. 41. The shaft has a wind surface 51 and an air outlet surface 52, and the air inlet surface 51 and the air outlet surface 52 are divided into two parts: the lower side and the opposite side of the axial flow fan 5, and respectively The Fangfang shaft AX 'air exit surface 52 corresponds to the vent 324 and the inlet side 41 of the centrifugal wind. The fan 5 can include a fan housing 53 and an axial fan unit 323. The fan housing 53 can be disposed on the outer side of the second housing 32. The air bearing pocket 1 can also include a pivoting portion 531. The pivoting portion 531 can be ventilated by π 532. Extend out. The pivoting portion 531 is provided with a fastening structure 5 pivoting portion 531 is rotatably disposed in the pivoting slot 325, and the fastening knot can be rotatably fastened to the engaging structure 3251, so the fan housing 53 ', is pivotally connected to the second housing 32 by the pivoting portion 531. The user's flow fan 5 can be easily mounted or detached to the outer casing 3, and the fan selects whether or not to install the axial fan 5. However, the axial flow type 4 is not limited to this. 'The axial flow fan 5 can also be buckled with the centrifugal:: It is installed in the housing. The fixing method is not limited to the pivoting, and the fan 5 is opposite. The method of installing the axial flow fan 4 can be applied to the present invention. Is it possible to flow axially? 5 relative to the second shell (four) or can be blown "fan oblique, so that the shaft fan 5 blows out ... D heat exchanger 2 near the area and centrifugal work rice, strong heat to cry" fan 4, and then add ° 2. The heat dissipation performance of the vicinity of the area. 201228585 It can also be seen from Fig. 2 that the wind inlet surface 51 of the fan casing 53 and the outer side surface 321 of the second casing 32 are on the same plane, in other words, the fan casing 53 Not extending from the second housing 32, the overall appearance of the heat sink 2 can be increased. The axial fan unit 54 is disposed in the fan housing 53 and rotatable along the rotation axis AX. The axial fan unit 54 includes an axis. The flow hub 541 and the plurality of axial flow fans 542. The axial flow hub 541 is rotatable along a rotation axis AX, and the axial flow fan blades 542 can be extended by the sidewalls of the axial flow hub 541. When the fan unit 54 rotates, the air can be taken in by the air inlet surface 51 and discharged from the air outlet surface 52. Please also refer to FIG. 4, which is a cross-sectional view of the display device 100 of the present invention. 4 When the axial fan 5 rotates along the rotation axis AX, the axial fan 5 can be rotated in parallel The first airflow direction D1 of AX takes in air to generate a first airflow F1. The first airflow F1 enters the axial fan 5 from the wind inlet surface 51, and is blown out by the air outlet surface 52 to the axial fan 5. Finally, A flow F1 enters the interior of the centrifugal fan 4 by the air inlet side 41 of the centrifugal fan 4, thereby increasing the air pressure inside the centrifugal fan 4. Thereafter, the centrifugal fan 4 can generate a second along a second airflow direction D2. The airflow F2 and the second airflow F2 are blown by the side of the centrifugal fan 4 and blown toward the fin unit 33 to help the fin unit 33 to dissipate heat. The second airflow direction D2 is perpendicular to the first airflow direction D1. In an embodiment, the axial fan 5 can be selectively driven to save power. For example, when the display card 1 is at a low load 201228585, since the heat generated by the heating element η is not high, it is away from itself. The speed is not high, so there is no excessive noise. Therefore, the axial fan is not driven under the above conditions to reach the knot; = In summary, since the air pressure inside the centrifugal fan can be increased, the centrifugal fan Can know and know The same as 'more easy to inhale the air' and then generate more air volume. Therefore, the axial flow fan and the centrifugal fan of the present invention can adopt a small rotation speed to achieve the heat dissipation effect, thereby effectively reducing the overall heat sink generated. ' ® ' to reduce the noise interference to the user. The present invention is disclosed above in various embodiments, but it is only for the purpose of testing, and is not intended to limit the scope of the present invention. The above-described embodiments are not intended to limit the scope of the invention, and the scope of the invention is defined by the scope of the appended claims.
10 201228585 【圖式簡單說明】 第1圖為習知之顯示裝置之立體圖； 第2圖為本發明之顯示裝置之立體圖； 第3圖為本發明之顯示裝置之分解圖；以及 第4圖為本發明之顯示裝置之剖視示意圖。 【主要元件符號說明】 [習知技術] 顯示裝置1a 顯示卡2a 外殼體3a 離心式風扇4a 第一氣流方向D1 [本發明] 顯示裝置100 顯示卡1 發熱元件11 具有疊置風扇之散熱器2 外殼體3 第一殼體31 第一安裝部311 第二安裝部312 第二殼體32 20122858510 201228585 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a conventional display device; FIG. 2 is a perspective view of a display device of the present invention; FIG. 3 is an exploded view of the display device of the present invention; A schematic cross-sectional view of a display device of the invention. [Description of main component symbols] [Prior Art] Display device 1a Display card 2a Outer casing 3a Centrifugal fan 4a First airflow direction D1 [Invention] Display device 100 Display card 1 Heating element 11 Heat sink 2 with stacked fans 2 Outer casing 3 first casing 31 first mounting portion 311 second mounting portion 312 second casing 32 201228585
外側面321 内側面322 容置槽323 通風口 324 樞接槽325 卡合結構3251 開口 326 鰭片單元33 鰭片331 離心式風扇4 進風側41 安裝側42 離心式輪穀43 離心式扇葉44 軸流式風扇5 入風面51 出風面52 風扇殼體53 樞接部531 扣合結構532 軸流式風扇單元54 軸流式輪轂541 軸流式扇葉542 旋轉軸AX 201228585Outer side 321 inner side 322 receiving groove 323 vent 324 pivoting groove 325 engaging structure 3251 opening 326 fin unit 33 fin 331 centrifugal fan 4 air inlet side 41 mounting side 42 centrifugal trough 43 centrifugal fan blade 44 Axial fan 5 Air inlet surface 51 Air outlet surface 52 Fan housing 53 Pivot part 531 Fastening structure 532 Axial fan unit 54 Axial flow hub 541 Axial fan blade 542 Rotary axis AX 201228585
第一氣流方向D1 第二氣流方向D2 第一氣流F1 第二氣流F2 容置空間S1 I?First airflow direction D1 Second airflow direction D2 First airflow F1 Second airflow F2 accommodating space S1 I?