200944660 九、發明說明： 【發明所屬之技術領域】 本發明係關於—種風扇及其導流結構，侧是關於一種可改 變氣流流向之風扇及其導流結構。 【先前技術】 隨著電子裝置效能的補㈣，散鍊置或散熱系統已 ❹成為現行電子裝置巾不可或缺的配備之―，因為電子裝置所產生 之熱能若不加以適當地散逸，輕則造成效能變差，重則會導致電 子裝置的燒毁。散熱裝置對於微電子元件(例如積體電路，IC)而言 更是重要，因為隨著積集度的增加以及封裝技術的進步，使得積 體電路的面積不斷地縮小，同時每單位面積所累積的熱能亦相對 地會更高，故高散熱效能的散熱裝置一直是電子產業界所積極研 發的對象。 ^ 在現今之散熱裝置中，最廣泛被使用者係為風扇。而根據風 扇之入風與出風的方向關係’ 一般係可將風扇區分為轴流式風扇 與離心式風扇，如第1圖和第2圖所示’第1圖係習知之一種離 心式風扇之剖視圖，第2圖係習知之一種轴流式風扇之剖視圓。 在第1圖中’習知之軸流式風扇1之氣流係由入風口 10流入， 再由出風口 12流出，氣流由入風口 10流入時之方向與氣流由出 風口 12流出時之方向係相同。 在第2圖中，習知之離心式風扇2之氣流係由入風口 1〇流入， 5 200944660 再由出風口 22流出，氣流由 風嗔出時之方向Γ:Γ_之方向與氣流由出 向之流式風扇’離心式風扇雖可達到改變出風方 、有效率W、喊量較低、和噪音献等缺點。 【發明内容】 本發月之目的為提供—種風扇，藉、^ =職之流向並達到改變出風方向之目的 傳統轴流式風扇之高效率、出風量大、與低噪音等優點。 一為達上述目的’本發明提出一種風扇，其包括一導流结構、 ZZiTm 0 u —構之底部。該葉輪係設置於該導流結構上方，並具 Γ輪較與複數個麵，難«做置於該練之外環面。該 弓I晨係，&由至連結件連結於該導流結構，且該導引環之内 則環面與該些扇葉之外端緣之間係具有-預定距離，該導引環之 頂部係具有-入風口，該導引環之底緣與該導流結構底部之外環 面之間係形成-出風口。當該葉輪轉動時氣流係由該入風口流 入’再順著該導流結構之外環面流動而由該域口流出，且氣流 由出風口流出時之方向係不同於氣流由入風口流入時之方向。 一/達上述目的’本發明更提出-種風扇，其包括-導流結構、 葉輪和-導引環。該導流結構之外徑係自該導流結構之頂部漸 擴至該導流結構之底部。該葉輪係設置於該導流結構上方，並具 200944660 導_係連之外環:。該 ::::預定_，_環:=== ο 構之外環面流動而由該出^ .向係不同於氣流由人細狀時^由域口流出時之方 ο 軸目的’本發明再提出—種導流結構，其係應用於一 ===該轴流式風扇係包括—葉輪和—導引環，該葉輪係 触與複數個麟，該㈣賴設置於該餘之外環面， j流結構係設置於·輪下方，該導流結構之外徑係自該導流 L構之頂部漸擴至該導流結構之底部，該導弓_經由至少一連 結件連結於該導流結構，邮料環之_環面與該些扇葉之外 端緣之間係具有-狀距離，該導引環之頂部係具有—入風口， 該導引環之底緣與該導流結構底部之外環面之間係形成一出風 口’當該葉輪轉_氣流係由該人風口流人，再順著該導流結構 之外環面流動而由該出風口流出，且氣流由出風Π流出時之方向 係不同於氣流由入風口流入時之方向 為達上述目的，本發明又提出一種導流結構，其係應用於一 軸流式風扇’該轴流式風扇係包括一葉輪和一導引環，該葉輪係 具有-輪較與複數個扇葉，該些扇葉係設置於該輪數之外環面， 7 200944660 該導流結構係設置於該葉輪下方’該導流結構之外徑係自該導流 結構之頂部漸擴至該導流結構之底部，該判環係連結於一模組 殼體’且該導引環之内側環面與該些扇葉之外端緣之間係具有一 預定距離，該導引環之頂部係具有一入風σ，該導__ 該導流結構底部之外環面之間係形成—出風σ，當該葉輪轉動時 氣流係由該入風口流入，再順著該導流結構之外環面流動而由該 出風口流出’且氣流由出風Π流㈣之方向係不同於氣流由入風 口流入時之方向。 承上所述，本發明之風扇’由於其中之導流結構之朴係自 該導流結構之頂部漸擴至該導流結構之底部，使得氣流順著該導 流結構之外環面流動而被送出時改變了其流向。與習知技術相 較，本發明不僅能夠達到改變出風方向之目的，且可同時兼具古a 散熱效率、出風量大和噪音量小之優點。 ' m 【實施方式】 請同時參照第3圖及第4圖所示，第3圖係本發明之第一實 施例之立體圖，第4圖係沿第3圖中A_A，剖面線之剖視圖。如 所示’本發明之風扇3係包括一導流結構3〇、一葉輪& 圖 和一導引 環34。 導流結構3〇之外徑係自導流結構3〇之頂部漸擴至導流 30之底部，而使得導流結構30之外環面形成至少一 ^ 阳面。葉輪 32係設置於導流結構30上方，葉輪η係具有一輪轂伽與複數 200944660 個扇葉322。扇葉322係設置於輪較32〇之 中係設有卿t挪观32㈣_自^200944660 IX. Description of the Invention: [Technical Field] The present invention relates to a fan and a flow guiding structure thereof, and a side relates to a fan and a flow guiding structure thereof which can change the flow direction of the airflow. [Prior Art] With the complement of electronic device performance (4), the chain-linking or heat-dissipating system has become an indispensable device for the current electronic device, because the thermal energy generated by the electronic device is not properly dissipated. This can cause poor performance, which can lead to the burning of electronic devices. The heat sink is more important for microelectronic components (such as integrated circuits, ICs), because with the increase in the degree of integration and the advancement of packaging technology, the area of the integrated circuit is continuously reduced, and accumulated per unit area. The thermal energy is relatively higher, so the heat dissipation device with high heat dissipation performance has been actively developed by the electronics industry. ^ In today's heat sinks, the most widely used users are fans. According to the direction of the inlet and outlet of the fan, the fan can be divided into an axial fan and a centrifugal fan. As shown in Fig. 1 and Fig. 2, the first figure is a centrifugal fan. A cross-sectional view, and Fig. 2 is a cross-sectional view of a conventional axial flow fan. In Fig. 1, the airflow of the conventional axial flow fan 1 flows in from the air inlet 10 and then flows out through the air outlet 12, and the direction in which the airflow flows in from the air inlet 10 is the same as the direction in which the airflow flows out from the air outlet 12. . In Fig. 2, the airflow of the conventional centrifugal fan 2 flows in from the air inlet 1 , 5 200944660 and then flows out through the air outlet 22 , and the air flow is in the direction of the wind Γ: the direction of the Γ _ and the air flow The flow fan 'centrifugal fan can achieve the disadvantages of changing the wind side, the efficiency W, the low volume, and the noise. [Summary of the Invention] The purpose of this month is to provide a kind of fan, borrowing, ^= job flow and achieving the purpose of changing the direction of the wind. The traditional axial flow fan has the advantages of high efficiency, large air volume, and low noise. One for the above purposes' The present invention provides a fan comprising a flow guiding structure, a bottom portion of a ZZiTm0u structure. The impeller is disposed above the flow guiding structure, and has a plurality of faces of the wheel and is difficult to be placed outside the torus. The bowing system is coupled to the flow guiding structure by a connecting member, and the inside of the guiding ring has a predetermined distance between the annular surface and the outer edge of the plurality of blades. The guiding ring The top portion has an air inlet, and a bottom edge of the guiding ring forms an air outlet with the outer annular surface of the bottom of the flow guiding structure. When the impeller rotates, the airflow flows from the air inlet port and then flows out of the annular surface outside the guiding structure to flow out from the domain port, and the direction of the airflow flowing out of the air outlet is different from the airflow flowing in from the air inlet. The direction. One/to the above object' The present invention further proposes a fan comprising a flow guiding structure, an impeller and a -guide ring. The outer diameter of the flow guiding structure tapers from the top of the flow guiding structure to the bottom of the flow guiding structure. The impeller is disposed above the flow guiding structure and has an outer ring of 200944660. The ::::predetermined _,_ ring:=== ο The outer ring surface flows and the output is different from the airflow when the airflow is from the fineness of the human body. The invention further proposes a flow guiding structure, which is applied to a === the axial flow fan system comprises an impeller and a guiding ring, the impeller is in contact with a plurality of linings, and the (four) reliance is disposed outside the remainder a toroidal, j-flow structure is disposed under the wheel, the outer diameter of the flow guiding structure is gradually expanded from the top of the flow guiding structure L to the bottom of the flow guiding structure, and the guiding bow is coupled to the bottom of the guiding structure via at least one connecting member The guiding structure has a -shaped distance between the ring surface of the mail ring and the outer edge of the fan blades, and the top of the guiding ring has an air inlet, and the bottom edge of the guiding ring An air outlet is formed between the outer annular surfaces of the bottom of the diversion structure. When the impeller rotates, the airflow flows from the human air vent, and then flows outwardly along the outer surface of the diversion structure to flow out from the air outlet. The direction in which the airflow flows out of the air outlet is different from the direction in which the airflow flows in from the air inlet, and the present invention further proposes a flow guiding structure. The utility model relates to an axial flow fan, wherein the axial fan comprises an impeller and a guiding ring, wherein the impeller has a wheel and a plurality of blades, and the fan blades are arranged outside the wheel. , 7 200944660 The flow guiding structure is disposed under the impeller. The outer diameter of the flow guiding structure is gradually expanded from the top of the guiding structure to the bottom of the guiding structure, and the looping system is coupled to a module housing. And a predetermined distance between the inner annular surface of the guiding ring and the outer edge of the plurality of blades, the top of the guiding ring having an inflow σ, the bottom of the guiding structure An air outlet σ is formed between the outer annular surfaces. When the impeller rotates, the air flow flows in from the air inlet, and then flows out of the air outlet along the outer surface of the flow guiding structure to flow out from the air outlet. The direction of the flow (4) is different from the direction in which the airflow flows in from the air inlet. As described above, the fan of the present invention expands from the top of the flow guiding structure to the bottom of the flow guiding structure due to the flow guiding structure therein, so that the airflow flows along the outer surface of the guiding structure. When it was sent out, it changed its flow direction. Compared with the prior art, the present invention can not only achieve the purpose of changing the direction of the wind, but also has the advantages of the heat dissipation efficiency, the large air volume and the small noise amount. [M] Embodiments Referring to Figures 3 and 4, FIG. 3 is a perspective view of a first embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along line A-A of FIG. As shown, the fan 3 of the present invention includes a flow guiding structure 3, an impeller & and a guide ring 34. The outer diameter of the flow guiding structure 3〇 is gradually expanded from the top of the guiding structure 3〇 to the bottom of the guiding flow 30, so that the outer annular surface of the guiding structure 30 forms at least one positive surface. The impeller 32 is disposed above the flow guiding structure 30, and the impeller η has a hub gamma and a plurality of 200944660 blades 322. The fan blade 322 is set in the middle of the wheel 32. There is a clear t-view 32 (four) _ self ^
漸擴至輪轂320之中段部。較佳地，導流結構3〇 〇P 可為輪較320之底部之外㈣1.3〜3倍。 -狀外徑係 導引環34係經由複數個連結件％連結於導流結㈣ =34之内侧環面與扇葉奶之外端緣之間係具有_預定距離， 〇 〇 之獅係具有一入風口 341，導引環从之底緣與導流結 構3〇底部之外環面之間係形成—出風〇 342。導引環^直徑係 自導引環34之頂緣漸縮至導引環34鄰近於扇葉切之頂端之部 :，以導引更多氣流由入風π 341流人。_丨環34之頂緣至扇 葉似之頂端之間係具有—第一預定距離Dx，而扇葉322與輪數 32〇連結處之長度係為Dy，Dx/Dy之比值係可介於〇B之間。 由本=明風扇3之外形觀之，其亦可算為屬_流式之風扇。 當葉輪32被馬達驅動而轉動時(導引環％不轉動），氣流係由 入風口 34!流入，再順著導流結構3〇之外環面流動而由出風口如 流出，使得氣流由出風口 342流出時之方向不同於氣流由入風口 3M流入時之方向，亦即氣流由入風〇 341流入時之方向與氣流由 出風口 342流出時之方向係大致互相垂直，而達到如同傳統離心 式風扇之魏。皿’導流結構3G之職設計可使得氣流在改變 流向之過程中之壓損減至最低。 請參照第5圖所示，第5圖係本發明之第二實施例之剖視圖。 9 200944660 如圖所示’本發明之風扇4之結構設計大致上與前述之第一實施 例相同’故相同之構件乃標示以相同之元件編號，以資對應。其 差異在於導流結構3〇a之外徑係自導流結構撕之頂部漸擴至導 流結構30a之底部，而使得導流結構3〇a之外環面形成至少一斜 面。 請參照第6圖所示，第6圖係本發明之第三實施例之剖視圖。 如圖所示’本發明之風扇5之結構設計大致上與前述之第一實施― 例相同，故相同之構件乃標示以相同之元件編號，以資對應。其 差異在於導流結構30b之外徑係自導流結構娜之頂部漸擴至導〇 流結構30b之底部，而使得導流結構3〇b之外環面形成至少一斜 面和至少一曲面。 請參照第7圖所示，第7圖係本發明之第四實施例之剖視圖。 如圈所示，本發明之風扇6之結構設計大致上與前述之第一實施 例相同’故相同之構件乃標示以相同之元件編號，以資對應。其 差異在於輪較320a之外徑係自輪轂施之頂部漸擴至輪較遍❹ 之底和而使得輪較320a之外環面形成至少一曲面，以導引氣流 更順暢地流入。 。青參照第8圖所不’第8圖係本發明之第五實施例之剖視圖。 如圖所不’本發明之風扇7之結構設計大致上與前述之第一實施 例相同’故相同之構件乃標示以相同之元件編號 ，以資對應。其 異在於輪轂320b之外控係自輪較3識之頂部漸擴至輪較32此 10 200944660 之底部，而使得輪轂320b之外環面形成至少一斜面β 凊參照第9圖所示，第9圖係本發明之第六實施例之剖視囷。 如圖所示，本發明之風扇8之結構設計大致上與前述之第五實施 例相同’故相同之構件乃標示以相同之元件編號，以資對應。其 差異在於輪較320c之底部係具有一凹入部32卜以利開模，而導 結構30c之頂部係具有一突出部3〇1，突出部3〇1係對應於輪較 320c之凹入部321。 ❹ ❹ 清參照第10圖所示，第10圖係本發明之第七實施例之剖視 圖如圖所示，本發明之風扇9之結槪計大致上與前述之第-實川目同故相同之構件乃標示以相同之元件編號，以資對應。 其差異在於導引環34a係連結於一模組殼體38而設置於葉輪 之外圍鄰近位置。且導引環34a之底緣係鄰近於扇葉322之外侧 端之底緣转導引環34a之底緣係凸出於些扇葉322之外側端 之底緣’且導引環34a之底緣與些扇冑322之外侧端之底緣之間 係具2-第二預定距離仏，祕y之比值係可介於㈣5之間。 睛參照第11圖所示’帛u _本發明之第人實施例之立體 圖圖所不’本發明之風扇r之結構設計大致上與前述之第一 實施例相同，故相同之構件乃標示_同之元件峨，以資對應。 於第11圖之風扇3’之連結件他係連結於導流結構30 於:=二=::—係連結 11 200944660 綜上所述，本發明係藉由導流結構之形狀設計，亦即使導流 結構之物自導流結構之頂部漸擴至導流結構之底部，即可使軸 流式之風扇改_風方向，本發明不僅達到改變風向的目的， 更保有傳統滅式風扇高效率、出風量大、和低噪音之優點。 以上所述僅為舉例性，而非為限制性者。任何未脫離本發明 之=範缚，而對其進行之等效修改或變更，均應包含於後附 之申請專利範圍中。 【圖式簡單說明】 第1圖係習知之—種轴流式風扇之剖視圖》 第2圖係習知之一種離心式風扇之剖視圖。 第3圖係本發明之第-實施例之立體圖。 第4圖係沿第3圖中A-A，剖面線之剖視圖。 第5圖係本發明之第二實施例之剖視圖。 第6圖係本發明之第三實施例之剖視圖。 第7圖係本發明之第四實施例之剖視圖。 第8圖係本發明之第五實施例之剖視圖。 第9圖係本發明之第六實施例之剖視圖。 第10圖係本發明之第七實施例之剖視圖。 第11圖係本發明之第八實施例之立體圖。 12 200944660 【主要元件符號說明】Gradually expand to the middle of the hub 320. Preferably, the flow guiding structure 3 〇 〇P may be 1.3 to 3 times larger than the bottom of the wheel comparison 320 (four). - The outer diameter guide ring 34 is connected to the inner side of the flow guiding knot (4) = 34 via a plurality of joints, and has a predetermined distance between the inner annular surface of the blade and the outer edge of the fan milk. An air inlet 341 is formed between the bottom edge of the guiding ring and the outer surface of the bottom of the flow guiding structure 3, the air outlet 342. The guide ring has a diameter that tapers from the top edge of the self-guide ring 34 to a portion of the guide ring 34 that is adjacent to the tip end of the blade: to direct more airflow from the incoming air π 341. The top edge of the 丨 ring 34 has a first predetermined distance Dx between the top edges of the blade and the length of the blade 322 and the number of rounds 32 系 is Dy, and the ratio of Dx/Dy can be 〇B between. It can be regarded as a fan of the _flow type. When the impeller 32 is driven by the motor to rotate (the guide ring % does not rotate), the airflow flows in from the air inlet 34!, and then flows along the outer surface of the flow guiding structure 3, and flows out from the air outlet, so that the airflow is caused by The direction in which the air outlet 342 flows out is different from the direction in which the airflow flows in from the air inlet 3M, that is, the direction in which the airflow flows in from the air inlet 341 and the direction in which the airflow flows out from the air outlet 342 are substantially perpendicular to each other, and the conventional Wei of the centrifugal fan. The design of the vessel's diversion structure 3G minimizes the pressure loss of the gas stream during the process of changing the flow direction. Referring to Fig. 5, Fig. 5 is a cross-sectional view showing a second embodiment of the present invention. 9 200944660 As shown in the figure, the structural design of the fan 4 of the present invention is substantially the same as that of the first embodiment described above. Therefore, the same components are denoted by the same component numbers. The difference is that the outer diameter of the flow guiding structure 3〇a is gradually expanded from the top of the deflecting structure to the bottom of the guiding structure 30a, so that the outer surface of the guiding structure 3〇a forms at least one inclined surface. Please refer to Fig. 6, which is a cross-sectional view showing a third embodiment of the present invention. As shown in the figure, the structural design of the fan 5 of the present invention is substantially the same as that of the first embodiment described above, and the same components are denoted by the same component numbers. The difference is that the outer diameter of the flow guiding structure 30b is gradually extended from the top of the flow guiding structure Na to the bottom of the guiding turbulent flow structure 30b, so that the outer surface of the guiding structure 3〇b forms at least one inclined surface and at least one curved surface. Referring to Fig. 7, Fig. 7 is a cross-sectional view showing a fourth embodiment of the present invention. As shown in the circle, the structural design of the fan 6 of the present invention is substantially the same as that of the first embodiment described above. Therefore, the same components are denoted by the same component numbers. The difference is that the outer diameter of the wheel portion 320a is gradually expanded from the top of the hub to the bottom of the wheel and the outer surface of the wheel 320a forms at least one curved surface to guide the airflow to flow more smoothly. . Fig. 8 is a cross-sectional view showing a fifth embodiment of the present invention. The structural design of the fan 7 of the present invention is substantially the same as that of the first embodiment described above. Therefore, the same components are denoted by the same component numbers. The difference is that the outer control of the hub 320b is gradually expanded from the top of the wheel to the bottom of the wheel 32, and the outer surface of the wheel 320b is formed with at least one slope β. Referring to FIG. 9, the first Figure 9 is a cross-sectional view of a sixth embodiment of the present invention. As shown in the figure, the structural design of the fan 8 of the present invention is substantially the same as that of the fifth embodiment described above. Therefore, the same components are denoted by the same component numbers. The difference is that the bottom of the wheel set 320c has a concave portion 32 for opening the mold, and the top of the guiding structure 30c has a protruding portion 3〇1, and the protruding portion 3〇1 corresponds to the concave portion 321 of the wheel portion 320c. . BRIEF DESCRIPTION OF THE DRAWINGS FIG. 10 is a cross-sectional view showing a seventh embodiment of the present invention. As shown in the figure, the knot of the fan 9 of the present invention is substantially the same as that of the aforementioned Components are labeled with the same component number to correspond. The difference is that the guide ring 34a is coupled to a module housing 38 and disposed adjacent to the periphery of the impeller. The bottom edge of the guide ring 34a is adjacent to the outer edge of the blade 322. The bottom edge of the bottom guide ring 34a protrudes from the bottom edge of the outer end of the blade 322 and the bottom of the guide ring 34a. The edge has a second predetermined distance 仏 between the bottom edges of the outer ends of the fan 322, and the ratio of the secret y can be between (4) and 5. Referring to Fig. 11, the structure of the fan r of the present invention is substantially the same as that of the first embodiment described above, so that the same member is marked _ The same as the component 峨, to correspond. The connecting member of the fan 3' in FIG. 11 is connected to the flow guiding structure 30 at: ===::-linking 11 200944660 In summary, the present invention is designed by the shape of the guiding structure, even The material of the diversion structure is gradually expanded from the top of the diversion structure to the bottom of the diversion structure, so that the axial flow fan can be changed to the wind direction. The invention not only achieves the purpose of changing the wind direction, but also maintains the high efficiency of the traditional extinguishing fan. The advantages of large air volume and low noise. The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations of the present invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of a conventional type of axial fan. Fig. 2 is a cross-sectional view of a conventional centrifugal fan. Figure 3 is a perspective view of a first embodiment of the present invention. Fig. 4 is a cross-sectional view taken along line A-A of Fig. 3, taken along line. Figure 5 is a cross-sectional view showing a second embodiment of the present invention. Figure 6 is a cross-sectional view showing a third embodiment of the present invention. Figure 7 is a cross-sectional view showing a fourth embodiment of the present invention. Figure 8 is a cross-sectional view showing a fifth embodiment of the present invention. Figure 9 is a cross-sectional view showing a sixth embodiment of the present invention. Figure 10 is a cross-sectional view showing a seventh embodiment of the present invention. Figure 11 is a perspective view of an eighth embodiment of the present invention. 12 200944660 [Description of main component symbols]
1 :軸流式風扇 10、20 :入風口 12、22 :出風口 2:離心式風扇 3、3’ ：風扇 30、30a、30b、30c :導流 結構 301 :突出部 32 :葉輪 320、320a、320b、320c :輪轂 321 :凹入部 322 :扇葉 34、34a :導引環 341 :入風口 342 :出風口 36、36a :連結件 38 :模組殼體 4、5、6、7、8、9:風扇 Dx :第一預定距離 Dy :扇葉與輪轂連結處之長度 Dz :第二預定距離 131 : Axial fan 10, 20: air inlet 12, 22: air outlet 2: centrifugal fan 3, 3': fan 30, 30a, 30b, 30c: flow guiding structure 301: protruding portion 32: impeller 320, 320a , 320b, 320c: hub 321 : recessed portion 322 : blade 34 , 34a : guide ring 341 : air inlet 342 : air outlet 36 , 36a : link 38 : module housing 4 , 5 , 6 , 7 , 8 , 9: fan Dx: first predetermined distance Dy: length of the joint of the blade and the hub Dz: second predetermined distance 13