M334886 八、新型說明： 【新型所屬之技術領域】 本創作係有關一種組合式微型軸流風扇，係為96年 月12日申請第096221087號案之分割申請案。 12 【先前技術】 習知的散熱模組，主要應用在電子、光電產品領域， •排除電子產品運作時所產生的廢熱。其型式大別為被動1 籲熱元件及主動散熱元件，前者為銅或鋁製的散熱鰭片，政 後者常為最經濟的微型轴流風扇，使電子產品周邊空氣2 制對流，降低運作環境的溫度。而習知的微型軸流風扇結 構’係包括一體成型的一輪轂10及周圍複數葉片2〇 (如第 六圖所示），透過馬達驅動輪轂10旋轉，即使葉片20產生 風壓’達成強制散熱目的。由於風扇葉片的三維曲度、角 度、數目、半徑等參數都會影響風壓、壓量、噪音等數值 •，其最佳的設計方案係使數片葉片在正視（正面）方向構 -成無空隙結構，亦即一葉片的前緣遮蔽在相鄰葉片的後緣 .前方。但此種結構的風扇設計，將因模具技術的瓶頸而無 法實施，因為一部分遮蔽的結構，在射出成型後，將發生 不月b脫模的窘困。因此，習知的軸流風扇結構，各葉片均 保邊^又工隙d (如第六圖所示）’讓射出成型的風扇得 以脫模，而此種有空隙d，的結構，正是風切聲噪音產生的 主要原因之一，且容易造成風壓不足，而無法完全滿足散 熱上的需求。 5 M334886 【新型内容】 使豆3::目的’在提供-種組合式微型軸流風扇， :轂各別成型’再藉由組裝結構相互組合 成^的^;IU”藉此種結構設計，能 瓶頸，使複數風4葉片可更緊密的組合在輪轂周圍，^ 可使一風扇葉片的前縿、舟朴 甚至 … 在相鄰另一風扇葉片的後緣上 ，3低運棘/形成風扇正面角度觀察係無空隙的結構 牛_，守的噪音，並獲致提升風壓、風量的效果。 ν 的本創作貫施方式，係由分離製造成型的 ^較及複數風扇葉片所組成；該輪轂的中央設有-轉軸 二部’純外壁沿相周等分設有複數個魏形的復槽 、轴向延伸’且嵌槽的開口位在輪轂後端；而該風扇葉 《糸在：緣耦合有1塊，該楔塊係與嵌槽相匹配的鳩尾 藉此使複數風扇葉片的楔塊插入輪較的嵌槽組接’ 即組成—個完整的組合式微型軸流風扇。 【實施方式】 兹依附圖實施例將本創作之結構特徵及其他之作用、 目的詳細說明如下： 如第一圖及第二圖所示，本創作組合式微型軸流風扇 十’其較佳貫施例係由分別射出成型再行組合的一輪轂 1及複數風扇葉片2所組成，提供應用成為電子相關產品 的主動散熱元件之一，其中： 介〜輪轂1’如第一圖至第三圖所示，係射出成型的一中 工冋’可為圓筒形或其他形狀，其中央設有—轉軸結合部 M334886 11 ’而周圍外側壁設有複數個嵌槽丨2，該欲槽12可以是鳩 尾形槽在外侧壁呈軸向延伸，使其開口 121朝後方而位在 輪轂1的後端13。 複數風扇葉片2，如第一圖及第二圖所示，係各別射 出成型且結構形狀相同的片形元件，包含有一前緣21、一 後緣22、一外緣23及一内緣24，其三維曲面及幾何形狀不 必限於特定，可依空氣力學修飾成最佳的結構形狀。而其 φ 特徵係各風扇葉片2的内緣24搞合有一楔塊25，該楔塊25 係為可呈與輪轂1圓周匹配的弧形狀的鳩尾形塊體。當風 扇葉片2的楔塊25插入輪轂1的嵌槽12組合，使複數風扇 葉片2在輪轂1的周圍形成等分的輻射狀，就組成一個完 整的組合式微型軸流風扇。 藉上述輪轂1及複數風扇葉片2的結構設計，如第二 圖所示，使複數葉片2在輪轂1的周圍組合形成等分的輻M334886 VIII. New Description: [New Technology Field] This creation is about a combined miniature axial fan. It is a split application for the application of No. 096221087 on January 12, 1996. 12 [Prior Art] Conventional heat dissipation modules are mainly used in the fields of electronics and optoelectronic products. • Exclude waste heat generated during the operation of electronic products. Its type is passive 1 heat-supplied component and active heat-dissipating component. The former is a heat-dissipating fin made of copper or aluminum. The latter is often the most economical micro-axial fan, which makes the air around the electronic product convective and reduces the operating environment. temperature. The conventional micro-axial fan structure includes an integrally formed hub 10 and a plurality of surrounding blades 2 (as shown in FIG. 6), which are rotated by the motor-driven hub 10, even if the blade 20 generates a wind pressure to achieve a forced heat dissipation. purpose. Since the three-dimensional curvature, angle, number, radius and other parameters of the fan blade will affect the values of wind pressure, pressure, noise, etc., the optimal design is to make several blades in the front (front) direction - no gap The structure, that is, the leading edge of a blade, is shielded from the trailing edge of the adjacent blade. However, the fan design of this structure will not be implemented due to the bottleneck of the mold technology, because a part of the shielded structure will be released after the injection molding. Therefore, the conventional axial flow fan structure, each blade has a margin and a working gap d (as shown in the sixth figure) 'to allow the injection molding fan to be demolded, and the structure with the gap d, One of the main causes of wind-cut noise is that it is easy to cause insufficient wind pressure, and it cannot fully meet the demand for heat dissipation. 5 M334886 [New content] Make the bean 3:: the purpose of 'providing a kind of combined micro-axial fan, the hub is molded separately' and then by assembling the structure into each other ^ IU" by this kind of structure design, Can bottleneck, so that the complex wind 4 blades can be more tightly combined around the hub, ^ can make a fan blade front, sho, even... On the trailing edge of another adjacent fan blade, 3 low-speed spines / form a fan The front angle observation is a structure with no voids, and the noise is maintained, and the effect of increasing the wind pressure and the air volume is obtained. The method of creating the ν is composed of a separate manufacturing and a plurality of fan blades; the hub The central part is provided with two parts of the rotating shaft. The pure outer wall is provided with a plurality of Wei-shaped complex grooves along the circumference of the phase, and the axial extension is extended, and the opening of the groove is located at the rear end of the hub; and the fan blade is in the edge of the hub. The coupling has a block, and the wedge is matched with the slot of the slot to thereby insert the wedge of the plurality of fan blades into the slot of the wheel. That is, a complete combined miniature axial fan is formed. 】 According to the embodiment of the drawing, the structure of the creation is And other functions and purposes are as follows: As shown in the first figure and the second figure, the preferred embodiment of the combined miniature axial fan 10 is a wheel hub 1 which is separately injection molded and recombined. The plurality of fan blades 2 are composed of one of the active heat dissipating components for use as an electronic related product, wherein: the medium-wheel hub 1' is as shown in the first to third figures, and the injection molding process is a circle. The cylindrical shape or other shape is provided at the center thereof with a shaft joint portion M334886 11 ', and the outer outer side wall is provided with a plurality of slotted grooves 2, and the groove 12 may be a tail-shaped groove extending axially on the outer side wall to open the opening 121 is located rearwardly at the rear end 13 of the hub 1. The plurality of fan blades 2, as shown in the first and second figures, are respectively formed into sheet-shaped elements having the same structural shape, including a leading edge 21 and a The three-dimensional curved surface and the geometric shape of the trailing edge 22, an outer edge 23 and an inner edge 24 are not necessarily limited to specific, and can be modified into an optimal structural shape by aerodynamics, and the φ characteristic is the inner edge 24 of each fan blade 2. Combined with a wedge 25, the wedge 2 5 is an arc-shaped dovetail block that can be matched with the circumference of the hub 1. When the wedge 25 of the fan blade 2 is inserted into the slot 12 of the hub 1, the plurality of fan blades 2 are equally divided around the hub 1. The radial shape constitutes a complete combined micro axial flow fan. By the structural design of the above-mentioned hub 1 and the plurality of fan blades 2, as shown in the second figure, the plurality of blades 2 are combined to form an aliquot around the hub 1. spoke
射狀，就組成一個完整的組合式微型軸流風扇，可在所述 轉軸結合部11連結習知馬達的轉軸，再組裝於風扇框架， 即能應甩成電腦等相關電子產品的主動散熱模組。/' 由於本創作組合式微型軸流風扇的輪轂1及複數風扇 葉片2係分別射出成型而後再組接的結構，故可掣成數二 風扇葉片2，再與相同的輪組合，組成多種^曲面 、形狀、數目*同_流風扇成品，就能靈活地因應 電子產品的散熱需求，降低重製整個模具的成本 的是，如第四圖及第五圖所示，因為風騎片2章 是採分別成料後組接的結構，可^裝成風量^壓又效 7 M334886 果較優，且降低噪音的軸流風扇成品，亦即使一風扇葉片 2的前缘21遮蔽在相鄰另一風扇葉片2的後緣22上呈上下 的高低位差，亦即從風扇正面觀察（如第五圖所示），各 風扇茱片2之間係呈無空隙的結構’但仍保有各風扇茱片 2所形成的風道D (如第四圖所示），而此種風扇結構正 是習知軸流風扇難以製成的瓶頸，在本創作結構改良設計 後，即能夠完全輕易的製成。 綜上所述，本創作組合式微型轴流風扇設計，已確具 實用性與創作性，其技術手段之運用亦出於新穎無疑，且 功效與設計目的誠然符合，已稱合理進步至明。為此，依 法提出新型專利申請，惟懇請鈞局惠予詳審，並賜准專 利為禱，至感德便。 【圖式簡單說明】 第一圖為本創作組合式微型軸流風扇之分解立體圖。 第二圖為本創作組合式微型軸流風扇之正視立體圖。 第三圖為本創作組合式微型軸流風扇輪轂之斷面圖。 第四圖為本創作組合式微型軸流風扇之半剖視圖。 第五圖為本創作組合式微型軸流風扇之正視圖。 第六圖為習知微型軸流風扇之正面示意圖。 8 M334886 【主要元件符號說明】 1 輪轂 12 嵌槽 2 風扇葉片 22 後緣 24 内緣 D 風道 11 轉軸結合部 13 後端 21 前緣 23 外緣 25 楔塊In the form of a jet, a complete combined micro-axial fan is formed, and the rotating shaft of the conventional motor can be coupled to the rotating shaft joint portion 11 and assembled to the fan frame, that is, the active heat-dissipating mold of the related electronic products such as a computer. group. Since the hub 1 and the plurality of fan blades 2 of the combined miniature axial fan are respectively formed by injection molding and then assembled, the fan blades 2 can be folded into two, and then combined with the same wheel to form a plurality of types. The surface, shape, and number of the same * _ flow fan products, can flexibly respond to the heat dissipation requirements of electronic products, reduce the cost of re-engineering the entire mold, as shown in the fourth and fifth figures, because the wind rides 2 chapter It is a structure that is assembled after being separately formed, and can be installed as a final product of the axial flow fan which is superior in air volume and effective, and which reduces noise, even if the leading edge 21 of a fan blade 2 is shielded adjacent to each other. The rear edge 22 of a fan blade 2 has an upper and lower height difference, that is, viewed from the front of the fan (as shown in FIG. 5), and the fan blades 2 have a gap-free structure between each other, but the fans are still retained. The air duct D formed by the cymbal 2 (as shown in the fourth figure), and this fan structure is a bottleneck that is difficult to manufacture by the conventional axial fan. After the improved design of the creation structure, it can be completely easily manufactured. to make. In summary, the design of the combined miniature axial fan has been practical and creative. The application of its technical means is also novel and undoubted, and the efficacy and design purpose are in line with the fact that it has been reasonably improved. To this end, a new type of patent application was filed in accordance with the law, but the bureau was requested to give a detailed examination and to grant a patent for prayer. [Simple description of the drawing] The first figure is an exploded perspective view of the creative combined miniature axial fan. The second figure is a front perspective view of the creative combined miniature axial fan. The third figure is a cross-sectional view of the creative combined miniature axial fan hub. The fourth figure is a half cross-sectional view of the creative combined miniature axial fan. The fifth figure is a front view of the creative combined miniature axial fan. The sixth figure is a front view of a conventional micro-axial fan. 8 M334886 [Description of main component symbols] 1 Hub 12 Insert slot 2 Fan blade 22 Rear edge 24 Inner edge D Air duct 11 Shaft coupling 13 Rear end 21 Leading edge 23 Outer edge 25 Wedge