201221039 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種液冷式散熱系統，特別涉及一種用於冷 卻電子元件的液冷式散熱系統。 [0002] 【先前技術】 液冷式散熱系統原理是利用液體的循環流動將電子元件 ，如中央處理器等產生的熱量轉移到散熱元件上，進而 將熱量散發。 〇 _] 通常，該液冷式散熱系統包括一驅動泵、用於吸收電子 元件所產生熱量的一吸熱元件、一散熱元件、一入水管 及一出水管。該吸熱元件上分別設有一與入水管連接的 入水口及一與出水管連接的出水口。所述入水管及出水 管將驅動栗、吸熱元件及散熱元件依次連接，從而形成 一封閉的液體循環路徑。該吸熱元件内設有容納液體的 空腔，使用時，吸熱元件吸收電子元件產生的熱量，並 將其内的液體加熱，被加熱液體在驅動泵的作用下沿出 ❹ 水管流向散熱元件，將攜帶的熱量傳遞給散熱元件後而 冷卻，通過散熱元件將熱量散發到周圍環境中，同時， 冷卻液體沿入水管流回吸熱元件内，如此往復循壞，從 而實現對電子元件散熱的目的。 [0004] 該液冷式散熱系統中，吸熱元件的加熱區域（即吸熱元 件與電子元件的接觸區域）的面積較小，使得熱量容易 集中在該加熱區域，而入水口及出水口分別位於該加熱 區域的正上方的左、右兩侧，該液體經由入水管及入水 口注入吸熱元件，並流經加熱區域，然後再由出水口流 099138451 表單編號A0101 第3頁/共17頁 0992067011-0 201221039 回出水管，其中流經吸熱元件的過程中，液體大部分經 由從入水口至出水口之間的最短距離，使得加熱區域其 他部分區域形成流路的死角，從而減小吸熱元件内液體 與電子元件之間的熱交換效率，甚至導致位於加熱區域 下方的電子元件產生過熱的現象，影響該液冷式散熱系 統的散熱效率。 【發明内容】 [0005] 鑒於此，有必要提供一種具有較高散熱效率的液冷式散 熱系統。 [0006] 一種液冷式散熱系統，包括吸熱元件、驅動泵、散熱元 件、及將所述吸熱元件、驅動泵及散熱元件連接的入水 管及出水管，該吸熱元件内設有用於容納冷卻液體的密 封的腔室，該吸熱元件的底部的中央形成用於與電子元 件貼設的加熱區域，該吸熱元件的頂部設有與入水管連 接且與該加熱區域正對的一入水口及與出水管連接且位 於該入水口周圍的多個出水口。 [0007] 相較於習知技術，所述液冷式散熱系統的吸熱元件包括 多個出水口，且入水口位於加熱區域中心位置的上方， 工作時，在散熱元件處被冷卻的液體經入水口回流至吸 熱元件内時，可被吸熱元件的加熱區域迅速加熱而流向 加熱區域的周圍區域，再經由出水口流向散熱元件，因 此，該吸熱元件内冷卻液體被加熱後流向出水口的流動 路徑更為均勻順暢並減少流路的死角，冷卻液體可最大 程度與加熱區域進行熱交換，有效地避免了位於加熱區 域下方的電子元件過熱的可能性，同時提升該液冷式散 099138451 表單編號A0101 第4頁/共17頁 0992067011-0 201221039 熱系統的散熱效率。 【實施方式】 [0008] [0009] Ο [0010]201221039 VI. Description of the Invention: [Technical Field] The present invention relates to a liquid-cooled heat dissipation system, and more particularly to a liquid-cooled heat dissipation system for cooling electronic components. [0002] [Previous Technology] The principle of the liquid-cooled heat-dissipating system is to transfer heat generated by an electronic component such as a central processing unit to a heat-dissipating component by circulating flow of the liquid, thereby dissipating heat. _ _] Generally, the liquid-cooled heat dissipating system includes a driving pump, a heat absorbing member for absorbing heat generated by the electronic component, a heat dissipating member, a water inlet pipe, and an outlet pipe. The heat absorbing element is respectively provided with a water inlet connected to the water inlet pipe and a water outlet connected to the water outlet pipe. The inlet and outlet pipes connect the drive pump, the heat absorbing element and the heat dissipating member in sequence to form a closed liquid circulation path. The heat absorbing element is provided with a cavity for accommodating a liquid. In use, the heat absorbing element absorbs heat generated by the electronic component and heats the liquid therein, and the heated liquid flows along the water outlet pipe to the heat dissipating component under the action of the driving pump. The carried heat is transferred to the heat dissipating component and then cooled, and the heat is dissipated to the surrounding environment through the heat dissipating component. At the same time, the cooling liquid flows back into the heat absorbing component along the water pipe, so that the reciprocating cycle is performed, thereby achieving the purpose of dissipating heat to the electronic component. [0004] In the liquid cooling type heat dissipating system, the heating area of the heat absorbing element (ie, the contact area of the heat absorbing element and the electronic component) has a small area, so that heat is easily concentrated in the heating area, and the water inlet and the water outlet are located respectively. On the left and right sides directly above the heating zone, the liquid is injected into the heat absorbing element through the water inlet pipe and the water inlet, and flows through the heating zone, and then flows through the water outlet 099138451 Form No. A0101 Page 3 of 17 0992067011-0 201221039 The water pipe is returned, wherein during the process of flowing through the heat absorbing element, most of the liquid passes through the shortest distance from the water inlet to the water outlet, so that other parts of the heating area form a dead angle of the flow path, thereby reducing the liquid in the heat absorbing element. The heat exchange efficiency between the electronic components even causes overheating of the electronic components located under the heating region, affecting the heat dissipation efficiency of the liquid cooling heat dissipation system. SUMMARY OF THE INVENTION [0005] In view of the above, it is necessary to provide a liquid-cooled heat dissipation system having a high heat dissipation efficiency. [0006] A liquid-cooled heat dissipation system includes a heat absorbing element, a driving pump, a heat dissipating component, and an inlet pipe and an outlet pipe connecting the heat absorbing component, the driving pump and the heat dissipating component, wherein the heat absorbing component is provided with a cooling liquid a sealed chamber, a central portion of the bottom of the heat absorbing member is formed with a heating region for attaching to the electronic component, and a top portion of the heat absorbing member is provided with a water inlet and a water inlet connected to the water inlet pipe and facing the heating region A water outlet is connected to the plurality of water outlets around the water inlet. [0007] Compared with the prior art, the heat absorbing element of the liquid cooling heat dissipating system includes a plurality of water outlets, and the water inlet is located above the center of the heating area, and the liquid that is cooled at the heat dissipating component passes through during operation. When the nozzle is returned to the heat absorbing element, the heating area of the heat absorbing element can be rapidly heated to flow to the surrounding area of the heating area, and then flows to the heat dissipating element via the water outlet. Therefore, the cooling liquid in the heat absorbing element is heated and flows to the water outlet. More even and smooth and reduce the dead angle of the flow path, the cooling liquid can exchange heat with the heating area to the greatest extent, effectively avoiding the possibility of overheating of the electronic components located under the heating area, and at the same time raising the liquid-cooled dispersion 099138451 Form No. A0101 Page 4 of 17 0992067011-0 201221039 Thermal efficiency of the thermal system. [Embodiment] [0009] [0009] [0010]
請參照圖1，所示為本發明一實施例中的液冷式散熱系統 100，該液冷式散熱系統100包括一散熱元件20、一吸熱 元件30、一驅動泵40、將吸熱元件30與散熱元件20連接 的一入水管60及一出水管70。 該吸熱元件30與發熱電子元件80 (圖4) ’如中央處理器 緊密接觸’以及時吸收電子元件80所產生的熱量°請同 時參閱圖2及圖3，該吸熱元件30參括一底板31、一散熱 器32、一密封圈33、一蓋體34及三個連接件35。 該底板31通常由導熱性能較好的材科r如銅製成。該蓋 體34包括一圓形的頂壁341、從頂壁341的周緣向下延伸 的一侧壁342及從該侧壁342向外突出的四個定位部343 。該頂壁341上設有一個位於中部的入水口 345及分別位 於該入水口 345兩側的兩個出水口 346。所述入水口 345 及出水口 346排列於同一直線上，所述入水口 345及出水 口 346的内周緣分別設有内螺紋，以分別連接所述連接件 35。該散熱器32包括複數並排設置的散熱片，所述散熱 器32焊接固定於底板31的上表面上。使用時，該吸熱元 件30通過底板31與散熱器32正對的區域與電子元件8〇貼 設而形成加熱區域310。該蓋體34罩設於底板31上，其中 ，該蓋體34的入水口 345位於該加熱區域31〇的正上方， 蓋體34的側壁342的底端與底板31的上表面接觸，複數固 定件36分別穿設蓋體34的定位部343後螺合於底板31内 ’從而將該蓋體34與底板31相互連接形成所述吸熱元件 099138451 表單編號A0101 第5頁/共17頁 0992067011-0 201221039 30。請同時參閱圖4，密封圈33夾設於蓋體34的側壁342 的底端與底板31之間的連接處，以消除蓋體34與底板3ι 連接時的間隙，從而在蓋體34與底板31之間形成一密封 的腔室348。腔室348内用於填充冷卻液體，如純水該 散熱器32收容於該腔室348内。 [0011] 每一連接件35包括一螺釘37、一螺帽39及一密封圈38。 該螺釘37包括一圓筒狀的螺杆部371、環設於該螺杆部 371中部的一環形突起372及位於螺杆部371頂端的一頭 部373。該螺釘37的中央設有一择徑向貫穿該頭部373和 螺杆部3 71的通孔3 7 0>該螺杆部3 7丨於突起3 7 2以下的底 &部分的外表面設有第一外螺紋，所述第一外螺紋與蓋 體34上入水口 345及出水口 346的内螺紋相互匹配，該螺 杆部371於突起372以上的頂端部分的外表面設有第二外 螺紋。每一螺帽39呈圓環形柱體狀，該螺帽39的内圓周 表面上設有與螺釘37的第二外螺紋相匹配的内螺紋。該 螺帽39的高度大於螺杆部371的頂端部夯的高度，且螺帽 39的内徑大於頭部373的外徑，組裝時，所述螺釘37分別 通過螺杆部371的底端部分螺合於吸熱元件3〇的入水口 345及出水口 346内’其突起372分別與蓋體34的頂壁341 的上表面抵觸，所述螺帽39分別螺合於對應螺杆部371的 頂端部分，每一螺帽39的頂端的内表面與對應螺釘37的 頭部371的外表面之間形成一環形間隔374。該密封圈38 夾設於螺帽39與螺釘37之間，以消除該螺釘37與螺帽39 連接時產生的間隙。該環形間隔374的寬度與所述入水管 60及出水管70的管壁的厚度大致相等。 099138451 表單編號A0101 第6頁/共17頁 0992067011-0 201221039 [0012] 該散熱元件20包括一水箱21、與該水箱21連通的複數管 道22、焊接固定於所述管道22外表面的複數散熱片23及 位於所述散熱片23上方的兩個散熱風扇24。該水箱21的 一側設有一出口 211及一入口 212，所述管道22與該水箱 21的另一侧連通。 [0013] 請再次參閱圖1，該入水管6〇呈縱長狀’其一端通過緊配 合方式插入對應連接件35的環形間隔374内，通過該連接 件35與吸熱元件30的入水口 345連接，另一端與散熱元件 Ο 20的出口 211連接。該驅動泵4〇設於該入水管60上《該 出水管70包括一縱長的第一管體71、一分水器72及兩個 第二管體73。該分水器70大致呈“γ”字形，其包括分別 位於該Υ”字最末端的一個第一管口 710及兩個第二管 口 730。該第一管體71連接於分水器72的第一管口71〇與 水箱21的入口 212之間，每一第二管體73的一端與分水器 72-對應的第二管口 73〇連接，另一端通過緊配合方式插 入對應的連接件35的環形間隔374内，通過連接件35與吸 ο [0014] …元件30的出水0 346連接。該出水管7〇整體也呈“γ，， 字形。 作時Λ吸熱元件30通過力〇熱區域31〇與電子元件8〇接 觸而吸收料，熱量經由底她及位於底板31上的散熱 器32傳遞給腔室348㈣冷卻液體而將該冷卻液體加熱， 被加熱的液體料妓侧作用下沿賴元件30的兩個 出水進人^水管70的兩個第二管體73内，並從分 水器了2的兩個第二管口 73〇進入後在第一管口 7 ’從分水㈣的第-管口川流入出水管㈣第一管體 099138451 表單編號Α0101 第7頁/共Π頁 0992067011-0 201221039 71，再經由第一管體71流向散熱元件20 ;在散熱元件20 處，被加熱液體在管道22内流動時將攜帶的熱量傳遞給 散熱片23後而冷卻，通過散熱片23將熱量散熱到周圍空 氣中，所述散熱風扇24運轉而產生氣流，以加速散熱片 23的散熱效率；同時，在散熱元件20處冷卻的液體從散 熱元件2 0的出口 211流向入水管6 0，經由入水管6 0回流 至吸熱元件30内；如此往復循壞，從而實現對電子元件 80散熱的目的。 [0015] 由於該吸熱元件30包括位於入水口 345兩側的兩個出水口 346，且入水口 345與吸熱元件30的加熱區域310正對， 因此，如圖4中箭頭所示，在散熱元件20冷卻後的液體經 由入水口 345直接向下衝擊該加熱區域310，被迅速加熱 後再流向加熱區域310的周圍區域、即流向兩個出水口 346所正對的區域，並從兩個出水口 346迅速流向散熱元 件20。因此，該吸熱元件30内冷卻液體被加熱後流向出 水口 346的流動路徑更為順暢，冷卻液體直接衝擊該吸熱 元件30的加熱區域310可使冷卻液體最大程度與位於底板 31下方的電子元件80進行熱交換，有效地避免了電子元 件80過熱的可能性，並且能夠更加均衡吸熱元件30的底 板31上的熱分佈，提升該液冷式散熱系統100的散熱效率 。由於該出水管70呈“Y”字形，從吸熱元件30流出的被 加熱液體從兩個出水口 70進入出水管70的兩個第二管體 73，並在出水管70内匯合後流向散熱元件20，從而在一 定程度上增加被加熱液體在出水管70内的流動速度，進 而增加該液冷式散熱系統100内冷卻液體的循環速度，提 099138451 表單編號A0101 第8頁/共17頁 0992067011-0 201221039 升該液冷式散熱系統100的整體散熱效率。 [0016] 在上述實施例中，吸熱元件30上出水口 346的數量為兩個 ，出水管70的數量為一個，然而，具體實施時，該出水 口 346的數量還可以為三個、四個或者其他多個，均勻地 分佈於該入水口 345的周圍，同時該出水管70或者出水管 70中第二管體73的數量相應的增加。 [0017] 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 0 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】 [0018] 圖1是本發明的一實施例中液冷式散熱系統的立體組裝圖 [0019] 圖2是圖1中吸熱元件的立體組裝圖。 [0020] 圖3是圖2中吸熱元件的分解圖。 [0021] 圖4是圖2中吸熱元件沿IV-IV線的剖視圖。 【主要元件符號說明】 [0022] 液冷式散熱系統：100 [0023] 散熱元件：20 [0024] 水箱：21 [0025]出口 ： 211 [0026]入口 ： 212 0992067011-0 099138451 表單編號A0101 第9頁/共17頁 201221039 [0027] 管道： 22 [0028] 散熱片 ：23 [0029] 散熱風扇：2 4 [0030] 吸熱元件：30 [0031] 底板： 31 [0032] 加熱區域：310 [0033] 散熱器 ：32 [0034] 密封圈 ：33 [0035] 蓋體： 34 [0036] 頂壁： 341 [0037] 側壁： 342 [0038] 定位部 ：343 [0039] 入水口 ：345 [0040] 出水口 ：346 [0041] 腔室： 348 [0042] 連接件 ：35 [0043] 固定件 ：36 [0044] 螺釘： 37 [0045] 通孔： 370 099138451 表單編號A0101 第10頁/共17頁 0992067011-0 201221039 [0046] 螺杆部：371 [0047] 突起：372 [0048] 頭部：373 [0049] 環形間隔：374 [0050] 密封圈：38 [0051] 螺帽：39 [0052] 驅動泵：40 θ [0053] 入水管：60 [0054] 出水管：70 [0055] 第一管體：71 [0056] 第一管口 ： 710 [0057] 分水器：72 [0058] 第二管體：73 ❹ [0059] 第二管口 ： 730 [0060] 電子元件：80 099138451 表單編號Α0101 第11頁/共17頁 0992067011-0Referring to FIG. 1 , a liquid cooling heat dissipation system 100 according to an embodiment of the present invention includes a heat dissipating component 20 , a heat absorbing component 30 , a driving pump 40 , and a heat absorbing component 30 . An inlet pipe 60 and an outlet pipe 70 are connected to the heat dissipating component 20. The heat absorbing element 30 is in close contact with the heat generating electronic component 80 (FIG. 4), such as the central processing unit, and absorbs the heat generated by the electronic component 80. Please refer to FIG. 2 and FIG. 3 together, and the heat absorbing component 30 includes a bottom plate 31. A heat sink 32, a sealing ring 33, a cover 34 and three connecting members 35. The bottom plate 31 is usually made of a material such as copper which has a good thermal conductivity. The cover body 34 includes a circular top wall 341, a side wall 342 extending downward from the periphery of the top wall 341, and four positioning portions 343 projecting outwardly from the side wall 342. The top wall 341 is provided with a water inlet 345 at the middle and two water outlets 346 respectively located at two sides of the water inlet 345. The water inlet 345 and the water outlet 346 are arranged on the same straight line, and the inner circumferences of the water inlet 345 and the water outlet 346 are respectively provided with internal threads to respectively connect the connecting members 35. The heat sink 32 includes a plurality of fins arranged side by side, and the heat sink 32 is welded and fixed to the upper surface of the bottom plate 31. In use, the heat absorbing member 30 is attached to the electronic component 8 through the region where the bottom plate 31 faces the heat sink 32 to form the heating region 310. The cover body 34 is disposed on the bottom plate 31. The water inlet 345 of the cover body 34 is located directly above the heating area 31〇, and the bottom end of the side wall 342 of the cover body 34 is in contact with the upper surface of the bottom plate 31. The member 36 is respectively inserted into the positioning portion 343 of the cover body 34 and screwed into the bottom plate 31 to interconnect the cover body 34 and the bottom plate 31 to form the heat absorbing member 099138451. Form No. A0101 Page 5 / Total 17 Page 0992067011-0 201221039 30. Referring to FIG. 4 at the same time, the sealing ring 33 is sandwiched between the bottom end of the side wall 342 of the cover 34 and the bottom plate 31 to eliminate the gap between the cover 34 and the bottom plate 3, so that the cover 34 and the bottom plate are A sealed chamber 348 is formed between 31. The chamber 348 is for filling a cooling liquid such as pure water, and the heat sink 32 is housed in the chamber 348. [0011] Each of the connecting members 35 includes a screw 37, a nut 39 and a sealing ring 38. The screw 37 includes a cylindrical screw portion 371, an annular projection 372 which is disposed at the center of the screw portion 371, and a head portion 373 at the top end of the screw portion 371. The center of the screw 37 is provided with a through hole 3 7 0> which penetrates the head portion 373 and the screw portion 3 71 in a radial direction; the screw portion 37 is disposed on the outer surface of the bottom portion of the protrusion 373 An external thread is matched with the internal thread of the water inlet 345 and the water outlet 346 of the lid body 34. The screw portion 371 is provided with a second external thread on the outer surface of the tip end portion above the protrusion 372. Each nut 39 has a circular cylindrical shape, and the inner circumferential surface of the nut 39 is provided with an internal thread matching the second external thread of the screw 37. The height of the nut 39 is greater than the height of the top end portion of the screw portion 371, and the inner diameter of the nut 39 is larger than the outer diameter of the head 373. When assembled, the screws 37 are respectively screwed through the bottom end portion of the screw portion 371. In the water inlet 345 and the water outlet 346 of the heat absorbing element 3', the protrusions 372 respectively abut against the upper surface of the top wall 341 of the cover body 34, and the nut 39 is screwed to the top end portion of the corresponding screw portion 371, respectively. An annular space 374 is formed between the inner surface of the top end of a nut 39 and the outer surface of the head 371 of the corresponding screw 37. The seal ring 38 is interposed between the nut 39 and the screw 37 to eliminate the gap generated when the screw 37 is connected to the nut 39. The width of the annular space 374 is substantially equal to the thickness of the wall of the water inlet pipe 60 and the water outlet pipe 70. 099138451 Form No. A0101 Page 6 of 17 0992067011-0 201221039 [0012] The heat dissipating component 20 includes a water tank 21, a plurality of pipes 22 communicating with the water tank 21, and a plurality of heat sinks welded and fixed to the outer surface of the pipe 22. 23 and two cooling fans 24 located above the heat sink 23. One side of the water tank 21 is provided with an outlet 211 and an inlet 212, and the duct 22 communicates with the other side of the water tank 21. [0013] Referring again to FIG. 1, the inlet pipe 6〇 is vertically elongated, and one end thereof is inserted into the annular space 374 of the corresponding connecting member 35 by a tight fitting manner, and is connected to the water inlet 345 of the heat absorbing element 30 through the connecting member 35. The other end is connected to the outlet 211 of the heat dissipating member 20 . The drive pump 4 is disposed on the water inlet pipe 60. The water outlet pipe 70 includes an elongated first pipe body 71, a water separator 72, and two second pipe bodies 73. The water trap 70 has a substantially "gamma" shape, and includes a first nozzle 710 and two second nozzles 730 respectively located at the extreme end of the Υ" word. The first tube 71 is connected to the water separator 72. Between the first nozzle 71 〇 and the inlet 212 of the water tank 21, one end of each second tube 73 is connected to the second nozzle 73 corresponding to the water separator 72, and the other end is inserted into the corresponding by a tight fit. The annular gap 374 of the connecting member 35 is connected to the water outlet 0 346 of the member 30 through the connecting member 35. The water outlet tube 7 is also generally "γ," shaped. When the heat absorbing element 30 is in contact with the electronic component 8 通过 through the force heat absorbing region 31 吸收, the heat is absorbed, and the heat is transferred to the chamber 348 (4) to cool the liquid through the bottom and the heat sink 32 located on the bottom plate 31 to heat the cooling liquid. The heated liquid material is applied to the two second pipes 73 of the water pipe 70 along the two outlets of the water-receiving member 30, and enters from the two second nozzles 73 of the water separator 2 In the first nozzle 7' from the water-distributing (four) of the first-tube mouth into the outlet pipe (four) first pipe body 099138451 Form No. Α0101 Page 7 / Total 09 page 0992067011-0 201221039 71, and then flow through the first pipe body 71 The heat dissipating component 20; at the heat dissipating component 20, the heat carried by the heated liquid in the pipe 22 is transmitted to the heat sink 23 and then cooled, and the heat is dissipated into the surrounding air through the heat sink 23, and the heat radiating fan 24 operates. The air flow is generated to accelerate the heat dissipation efficiency of the heat sink 23; at the same time, the liquid cooled at the heat dissipating component 20 flows from the outlet 211 of the heat dissipating component 20 to the water inlet pipe 60, and flows back into the heat absorbing component 30 via the water inlet pipe 60; Reciprocating cycle For the purposes of cooling electronic components 80. [0015] Since the heat absorbing element 30 includes two water outlets 346 on both sides of the water inlet 345, and the water inlet 345 is opposite to the heating area 310 of the heat absorbing element 30, therefore, as shown by the arrow in FIG. The cooled liquid 20 directly impacts the heating zone 310 downward through the water inlet 345, is rapidly heated, and then flows to the surrounding area of the heating zone 310, that is, to the area directly opposite the two water outlets 346, and from the two water outlets. 346 flows rapidly to the heat dissipating component 20. Therefore, the flow path of the cooling liquid in the heat absorbing element 30 to the water outlet 346 after being heated is more smooth, and the cooling liquid directly impacts the heating area 310 of the heat absorbing element 30 to maximize the cooling liquid and the electronic component 80 located under the bottom plate 31. The heat exchange is performed, the possibility of overheating of the electronic component 80 is effectively avoided, and the heat distribution on the bottom plate 31 of the heat absorbing component 30 can be more balanced, and the heat dissipation efficiency of the liquid cooling heat dissipation system 100 can be improved. Since the water outlet pipe 70 has a "Y" shape, the heated liquid flowing out of the heat absorbing element 30 enters the two second pipe bodies 73 of the water outlet pipe 70 from the two water outlets 70, and merges in the water outlet pipe 70 to flow to the heat radiating element. 20, thereby increasing the flow speed of the heated liquid in the outlet pipe 70 to a certain extent, thereby increasing the circulation speed of the cooling liquid in the liquid-cooled heat dissipation system 100, providing 099138451 Form No. A0101 Page 8 of 17 0992067011- 0 201221039 l The overall cooling efficiency of the liquid cooling system 100 is increased. [0016] In the above embodiment, the number of the water outlets 346 of the heat absorbing element 30 is two, and the number of the water outlet pipes 70 is one. However, in specific implementation, the number of the water outlets 346 may also be three or four. Or a plurality of other ones are evenly distributed around the water inlet 345, and the number of the second tubes 73 in the outlet pipe 70 or the outlet pipe 70 is correspondingly increased. [0017] 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 equivalent modifications or variations made by those skilled in the art will be covered by the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0018] FIG. 1 is a perspective assembled view of a liquid-cooling heat dissipating system according to an embodiment of the present invention. [0019] FIG. 2 is an assembled, isometric view of the heat absorbing element of FIG. 3 is an exploded view of the heat absorbing element of FIG. 2. 4 is a cross-sectional view of the heat absorbing element of FIG. 2 taken along line IV-IV. [Main component symbol description] [0022] Liquid-cooled heat dissipation system: 100 [0023] Heat dissipating component: 20 [0024] Water tank: 21 [0025] Exit: 211 [0026] Entrance: 212 0992067011-0 099138451 Form No. A0101 No. 9 Page / Total 17 pages 201221039 [0027] Pipe: 22 [0028] Heat sink: 23 [0029] Cooling fan: 2 4 [0030] Heat absorbing element: 30 [0031] Base plate: 31 [0032] Heating area: 310 [0033] Radiator: 32 [0034] Seal: 33 [0035] Cover: 34 [0036] Top wall: 341 [0037] Side wall: 342 [0038] Positioning: 343 [0039] Inlet: 345 [0040] Outlet :346 [0041] Chamber: 348 [0042] Connector: 35 [0043] Fixing member: 36 [0044] Screw: 37 [0045] Through hole: 370 099138451 Form number A0101 Page 10 of 17 0992067011-0 201221039 [0046] Screw portion: 371 [0047] Protrusion: 372 [0048] Head: 373 [0049] Annular spacing: 374 [0050] Sealing ring: 38 [0051] Nut: 39 [0052] Drive pump: 40 θ [0053] Inlet pipe: 60 [0054] Outlet pipe: 70 [0055] First pipe body: 71 [0056] First pipe port: 710 [0 057] Water separator: 72 [0058] Second pipe: 73 ❹ [0059] Second nozzle: 730 [0060] Electronic components: 80 099138451 Form number Α 0101 Page 11 of 17 0992067011-0