200906282 九、發明說明： 【發明所屬之技術領域】200906282 IX. Description of the invention: [Technical field to which the invention belongs]
本發明係關於一種扇輪構iiL 出成形方式製作一扇輪之數個部^) ’特別是關於藉由射 其軸心位置之該部位的實且縮減該扇輪越遠離 輪構造。 予又以提昇平衡精確度之扇 【先前技術】 fk著電子裝置效能不斷 度亦越來越高，過高的環境溫度容，易生的溫 穩定性，因此散熱單元已成為現行置效能及 必要配備之_。—如 免子4置中不可或缺的 子裝置中之命 二二^政熱單元大部分係對應該電 子凡件的體積選用搞也 3為了降低該散熱風扇之整體重旦:尺寸之散熱風扇，且 藉由塑性材料利用射出成形方=制=散熱風扇之扇輪大多 現今利用射出成形方式擎:。 例如：輪數、環板或扇苹梦Γ屬輪’其各部位構件〔 實質厚度，以雜柱姑Θ 4大邹分均設計成具有相同之 然而，上述習用戶二羽輪之平衡精確性及整體結構強度。 PK10393 07/07/24 點’例如：成形過程中實質上具有下列缺 融之塑性材料細—化之過私中係利用-射料喷嘴將該炫 内，由於注入診'主料口，主入—成形模具之一成形空間 一反向壓力 ，之塑性材料進人該成形空間時會產生 亦越大，以及社左^之5亥塑性材料的體積越多該反向麗力 ，導敎料口對應之成形空間的軸向厚度不小於 仏融之雖材•質上難以均勻的填入該 200906282 料口之空隙内。如此-來，造成該扇輪 遠離該注料口之位置〕之部分構件〔例 成幵彡咖門夕織把〃、疋該熔岫之塑性材料在流經該 使得兮戶於二处後谷易產生質量分布不均勻之現象，而 :該扇輪“之各部位實質上报難具有均勻之質量分布 :有=降低該扇輪之整體平衡精確度。基於上述原因 有確貫有必要進—步改良上述習_輪構造。 :鑑減’本發明改良上述之缺點，其中一扇輪形 個雜〔例如：頂蓋部、環牆部及環板部等部位〕 =料部，該彎折部設置於各該部位間之交界處，其 ==該扇輪軸心之該雜的實f厚度大於該其他部位 貝貝厚度以便越运離該扇輪軸心之該部位的實質厚 =j此減輕該扇輪之整體重量，且同時提昇該扇輪成 夕4¾1分布之均勻性，以增加平衡精密度。 【發明内容】 二本發明之主要目的係提供一種扇輪構造(二），其中— f輪形成有數個部位及數個彎折部，該彎折部設置於各該 T位間之交界處’其巾最接近該扇輪軸, '^之該部位的實質 厚度大於該其他部位之實質厚度，使越遠離該扇輪軸心之 及其餘部位的實質厚度越小，藉此本發明具有提升減輕扇 輪整體重量及提昇平衡精密度之功效。 根據本發明之扇輪構造(二），其藉由射出成形方式形 成數個部位、數個彎折部及數個扇葉，其中最接近該扇輪 轴心之該部位的實質厚度大於該其他部位之實質厚度，且 PK10393 07/07/24 200906282 餘部位的實質厚度越小；該數個 二斤成於各該相鄰二部位之間，·該數個扇葉形成 輪之輪軸心之該部位的外周緣。藉此，減輕該扇 增加;ί度且同時提昇_質量分布之均勻性，以 【實施方式】 為讓本發明之上収其他目的、特徵及優點能更明 、重下文特舉本發明之較佳實施例，並配合所附圖式 ，作詳細說明如下： 間式 一—般而言’由於利用射出成形方式製作-散熱風扇 之取f輪，故該扇輪之材質較佳係選用一塑性材料〔例如 ♦笨硫醚、聚丙烯、樹脂及聚醚醚酮等〕，該塑性材料 在炫融狀悲下具有較佳之流動性。該熔融之塑性材料經由 ―射料=嘴對應—扇輪模具之—注料口注入該扇輪模具之 成开^二間内，以成形該扇輪之輪轂、環板及扇葉等主要 $件部位；其中該注料口之位置通常對應位於該扇輪之軸 位置以便位於該扇輪模具之塑性材料可均勻的埴 該成形空_之各間隙。 '、n 睛茶照第！及2圖所示，本發明第—實施例之 有數個部位及數個f折部，其中該數個部位依照 二:η輪1之一軸心座10距離的遠近依序分別為 问又之頂盖部11〔即該扇輪1之一第—部位〕、 輪穀之—環牆# 12〔即該扇輪1之-第二部位〕及; 板^ 13〔即δ亥屬輪1之一第二部位〕，該軸心座10設置 ΡΚ10393 07/07/24 200906282 於該扇輪i之轴心办 周緣直接祕^ 該頂蓋部11係由轴心座ίο之外 緣直接辦—延伸形成； ^川之外 U之外周緣軸向朝下彎折_ # = 12 #'由該頂蓋部 共同圍繞形成—内部空ml'盖部11及環牆部12 之-端徑向朝外彎折，f；f。⑴係由該環牆部12 ，一板部==二=葉： 該扇葉Η之間形成等間距排列。草月牧伸而成，且各 請參照第2圖所示，其係本發明第一 之數個彎折部至少包含-二= 及環牆部心15形成於該頂蓋部π 及環板…間二於該環_ , 弟弓折邛15相對具有一央角^ 〔亦即該頂盍則！與該環牆部12間之央角〕， 】 角h較佳係介於9〇度至 :中"夾 且古一 + η /又·^间’这弟一寫.、折部16 备、:2〔亦即該環牆部12與該環板部13間之夾 t二物圭係介於3。度至15°度之間。另外， 11係由該軸心座1Q之外周緣直接勸朝外 !ΐ:該頂蓋部11之實質細大於該環牆部12之 Τ2;該環牆部12之實質厚度Τ2大於該環板部13 之貝貝=度丁3 ;本實施例之各扇葉]4的實質厚度選擇相 同於該環板部13之實質厚度丁3。 請再參照第1 A 2圖所示，在利用射出成形方式形 成該扇輪1之過程中，該射料喷嘴會提供適當之射出壓力 迫使該炼融之塑性材料輸送且充填入該扇輪模具之成形空 PK10393 07/07/24 200906282 間内’然而實際上相對於該成形空間内越遠 位置’則需要更大之射出壓力來擠壓迫使該口之 料填滿該位置之空隙，但過大之射出壓力容易：戶』性材 產生變形而造成品質不良，且會導致過多之=扇輪構造 點。本發明第-實施例藉由在該溶融之=費等缺 該彎折部後其所成形之該扇輪！之-部位〔=母經過各 例之環牆部12‘〕的厚度小於未經過該彎折‘:：本實施 塑性材料所成形之該扇輪1的另-部位〔相;融之 之頂蓋部11〕的厚度，使得兮戶^田於本貫施例 軸心座10之心越祕該騎1之 心貝貝知度T2小於該頂蓋部u實 心，成形方式形成該扇…之各該部位越二 之成形_少，籍 費之材枓，同日守減輕該扇輪丨 由於在射出成形過程中，若射_力^1° 扇輪構造在成形時產 ^ 1 *易導致 維持較小之射出壓力可唯持^ 貝不良之情況，故 避免原料之扇輪構造之品質穩定性，且 射出璧力的°因此’本發明在該射料嘴嘴提供相同之 需之成形‘=1越遠離其轴心位置之部位所 需之成形材料目力於習用扇輪遠離其轴心位置之部位所 經過夂且本發明之各雜的實質厚度在每 時不二::嶋目對縮減其實質厚度，故在射出成形 實該她間==溶融之塑性材料更加容易填 、「省主枓口之各空隙，藉此該扇輪1成 PK10393 07707/24 200906282 佳之均勾厚度及質量分布’使得本發明確 貝 ；汁該扇輪1之整體平衡精確度’並減少該扇_ 1後續之難平_s之日相。 輪 請來昭筮1 n Λ — /'、、、弟及4圖所示，其揭示本發明第二實施例 之扇輪構造㈡。相較於第-實施例，第二實施例之數個 扇葉14係軸向朝上彎折延伸形成於該扇輪〗之環板部u 的外周緣’且各㈣葉Μ顧自—弧形構造丨各該扇葉 14係相互等間距環設排列於該環板部13之外周緣；該扇 輪1，頂蓋部11的實質厚度Τ1自該軸心座10徑向朝二 m咸但該頂盍部π之最小厚度仍大於該環牆部η ^實質厚度Τ2，藉此提昇該頂蓋部u之結構強度，並同 日1該扇輪1之其他部位在成形後具有較佳之均勻厚度及 質量分布。 '飞 如上所述，相較於習用扇輪構造欲在射出成形之過 程中使其各部位具有相同之厚度，反而導致雜融之塑= 材料不易填實該成形空間之韻，造成該習 其轴心位置之部位容易產生厚度及f量分布不均勻 ’第2圖之本發簡由射出成形方式軸_輪丨之數個 部位及該數個彎折部，該彎折部設置於各該部位間之交界 處，其中最接近該扇輪轴心之頂蓋部u的實質厚度丁】大 於該其他部位之實質厚度，且越遠離該扇輪'丨'轴予=之該其 餘°卩位的貫質厚度越小，藉此減輕該扇輪】之整體重量， 且同時提昇該扇輪丨之質量分布之均勻性，以增：平：精 密度。 PK10393 07/07/24 10 200906282 雖然本發明已利用上述較佳實施例揭示，然其並非 用以限定本發明，任何熟習此技藝者在不脫離本發明之精 神和範圍之内，相對上述實施例進行各種更動與修改仍屬 本發明所保護之技術範疇，因此本發明之保護範圍當視後 附之申請專利範圍所界定者為準。SUMMARY OF THE INVENTION The present invention relates to a plurality of portions of a fan wheel that is formed by a fan wheel iiL forming method, particularly with respect to the portion of the wheel position by which the axis position is projected, and which is farther away from the wheel structure. Fans to improve the balance accuracy [previous technology] fk electronic devices continue to be more and more efficient, too high ambient temperature capacity, easy temperature stability, so the heat dissipation unit has become the current performance and necessary Equipped with _. - For example, in the sub-devices that are indispensable for the 4th position, the second part of the political unit is the size of the electronic unit. 3 In order to reduce the overall weight of the cooling fan: the size of the cooling fan And the use of plastic material by injection molding = system = fan of the cooling fan is mostly used today by injection molding. For example: the number of rounds, the ring plate or the fan-shaped nightmare wheel's parts of the body [the thickness of the body, the four columns of the abundance of the axillary column are designed to have the same. However, the balance accuracy of the above two users of the two feathers And overall structural strength. PK10393 07/07/24 Point 'Example: The plastic material that has the following defects in the forming process is fine---------------------------------------------------------------- - one of the forming molds has a forming space, a back pressure, and the plastic material enters the forming space, and the larger the volume, and the more the volume of the 5th plastic material of the company, the more the reverse force, the guiding port The axial thickness of the corresponding forming space is not less than that of the molten material. It is difficult to uniformly fill the gap of the 200906282 material port. In this way, some of the components that cause the fan wheel to move away from the position of the injection port are exemplified by the 塑性 门 夕 夕 〃 〃 〃 〃 〃 〃 〃 〃 〃 〃 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性 塑性It is easy to produce a phenomenon of uneven mass distribution, and: the various parts of the fan wheel are substantially difficult to report and have a uniform mass distribution: there is = reducing the overall balance accuracy of the fan wheel. For the above reasons, it is necessary to proceed. The above-mentioned _ wheel structure is improved. The present invention improves the above-mentioned disadvantages, wherein one of the wheel-shaped pieces (for example, a top cover portion, a ring wall portion, and a ring plate portion) is a material portion, and the bending portion is provided. At the junction between the parts, the == the thickness of the miscellaneous real f of the fan wheel axis is greater than the thickness of the other part of the shell so that the substantial thickness of the portion away from the axis of the fan wheel is reduced. The overall weight of the wheel, and at the same time, enhances the uniformity of the distribution of the fan wheel to increase the balance precision. [The invention] The main object of the invention is to provide a fan wheel structure (2), wherein - f wheel formation There are several parts and several bends, the bend The folding portion is disposed at a boundary between the T positions, wherein the towel is closest to the fan wheel axis, and the substantial thickness of the portion of the '^ is greater than the substantial thickness of the other portion, so that the farther away from the axis of the fan wheel and the rest of the body The smaller the thickness, the better the effect of reducing the overall weight of the fan wheel and improving the balance precision. The fan wheel structure (2) according to the present invention forms several parts and several bending parts by injection molding. And a plurality of blades, wherein the substantial thickness of the portion closest to the axis of the fan wheel is greater than the substantial thickness of the other portion, and the substantial thickness of the remaining portion of PK10393 07/07/24 200906282 is smaller; Between each of the two adjacent portions, the plurality of blades form an outer circumference of the portion of the wheel axis of the wheel. Thereby, the increase of the fan is reduced; and the uniformity of the mass distribution is simultaneously improved. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION The present invention will be described in detail with reference to the preferred embodiments of the invention, Words The injection molding method is adopted - the heat sink fan takes the f wheel, so the material of the fan wheel is preferably a plastic material (such as ♦ stupid thioether, polypropylene, resin, polyetheretherketone, etc.), the plastic material is in the dark It has better fluidity under the sorrow. The molten plastic material is injected into the opening and closing of the fan wheel mold through the injection port of the “shooting material=mouth corresponding-fan wheel mold” to form the wheel hub of the fan wheel. The main part of the ring plate and the fan blade; wherein the position of the injection port generally corresponds to the axis position of the fan wheel so that the plastic material located in the fan wheel mold can be evenly distributed in the gap of the forming air. In the first embodiment of the present invention, there are several parts and a plurality of f-folds, wherein the plurality of parts are in accordance with the distance of one of the two: η wheel 1 In order, the top cover portion 11 (that is, the first portion of the fan wheel 1), the wheel valley-the ring wall #12 (that is, the second portion of the fan wheel 1) and the plate ^ 13 [ That is, the second part of the δHai wheel 1], the shaft seat 10 is set to ΡΚ10393 07/07/24 200906282 on the fan wheel i The axis of the circumference of the axis is directly secret ^ The top cover part 11 is directly formed by the outer edge of the shaft center ίο—the outer edge of the outer edge of the U-axis is bent downwards _ # = 12 #' from the top The cover portion is integrally bent around the end of the inner air ml' cover portion 11 and the annular wall portion 12, f; f. (1) The ring wall portion 12, a plate portion == two = leaves: The blade blades are arranged at equal intervals. The grass and the moon are stretched out, and as shown in Fig. 2, the first plurality of bent portions of the present invention include at least - two = and the ring wall portion 15 is formed on the top cover portion π and the ring plate ... between the two in the ring _, the brother bow 邛 15 has a central angle ^ [that is, the top 盍! With the corner of the ring wall 12, 】 angle h is better between 9 至 to: 中中"夹和古一+ η /又·^间' this brother writes. , 2: that is, the gap between the ring wall portion 12 and the ring plate portion 13 is between three. Degree to between 15 ° degrees. In addition, the 11 series is directly urged outward by the outer periphery of the shaft seat 1Q! ΐ: the substantially thin portion of the top cover portion 11 is larger than the Τ2 of the annular wall portion 12; the substantial thickness Τ2 of the annular wall portion 12 is larger than the annular plate The shell portion of the portion 13 is 3; the substantial thickness of each of the blades 4 of the present embodiment is selected to be the same as the substantial thickness of the ring portion 13. Referring again to FIG. 1A, in the process of forming the fan wheel 1 by injection molding, the injection nozzle will provide appropriate injection pressure to force the refining plastic material to be transported and filled into the fan wheel mold. Forming the void PK10393 07/07/24 200906282 'but actually the farther position in the forming space' requires a larger injection pressure to squeeze the gap that forces the material to fill the position, but too large The injection pressure is easy: the household material is deformed to cause poor quality, and it will lead to excessive = fan wheel construction points. The first embodiment of the present invention is formed by the fan wheel formed after the bending portion is missing in the melt. The thickness of the portion of the wall portion 12' of the case is less than that of the portion of the fan wheel 1': the other part of the fan wheel 1 formed by the plastic material of the present embodiment The thickness of the portion 11] makes the heart of the 兮 ^ 田 于 于 本 本 本 本 该 该 该 该 该 该 骑 骑 骑 骑 骑 骑 骑 骑 骑 骑 骑 贝 贝 贝 贝 贝 贝 贝 贝 贝 贝 贝 知 知 知 知 知 知 知 知 知The second part of the part is formed _ less, the material of the fee is 枓, the same day to reduce the fan rim due to the injection molding process, if the injection _ force ^ 1 ° fan wheel structure during the formation of the production of 1 * easy to maintain The injection pressure of the small one can only maintain the bad condition of the shell, so the quality stability of the fan wheel structure of the raw material is avoided, and the force of the force is emitted. Therefore, the present invention provides the same required shape in the nozzle of the injection nozzle. The shape of the forming material required to be farther from the position of the axial center is passed through the portion of the conventional fan wheel away from its axial center, and the substantial thickness of the present invention is different at every moment: Thickness, so it is easier to fill in the plastic material in the injection molding. Each of the gaps, whereby the fan wheel 1 is PK10393 07707/24 200906282, and the uniform thickness and mass distribution 'to make the present invention clear; the overall balance accuracy of the fan wheel 1' and reduce the difficulty of the fan _ 1 The present invention discloses a fan wheel structure (2) according to a second embodiment of the present invention, as shown in the figure, which is similar to the first embodiment. The plurality of blades 14 of the second embodiment are formed by bending upward in the axial direction and formed on the outer periphery of the ring plate portion u of the fan wheel, and each of the four (four) blades is configured by the arc-shaped structure. The outer circumferences of the annular plate portion 13 are arranged at equal intervals; the substantial thickness Τ1 of the top cover portion 11 of the fan wheel 1 is radially from the axial center 10 to be salty but the minimum of the top portion π The thickness is still greater than η ^ substantial thickness Τ 2 of the annular wall portion, thereby increasing the structural strength of the top cover portion u, and the other portions of the fan wheel 1 have a better uniform thickness and mass distribution after forming on the same day. According to the conventional fan wheel structure, the parts have the same thickness during the injection molding process, which causes the miscellaneous Plastic = material is not easy to fill the rhyme of the forming space, resulting in the location of the axial position of the device is easy to produce thickness and uneven distribution of the amount of f. The second figure of the original figure from the injection molding axis _ rim of several parts And the plurality of bending portions, the bending portion is disposed at a boundary between the respective portions, wherein a substantial thickness of the top cover portion u closest to the axis of the fan wheel is greater than a substantial thickness of the other portion, and the Keeping away from the fan wheel '丨' axis = the smaller the thickness of the remaining 卩 position, thereby reducing the overall weight of the fan wheel, and at the same time improving the uniformity of the mass distribution of the fan rim, 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The various modifications and changes to the above-described embodiments are still within the technical scope of the present invention. The scope of the present invention is defined by the scope of the appended claims.
PK10393 07/07/24 200906282 【圖式簡單說明】 第1圖：本發明第一實施例之扇輪構造(二)之立體圖。 第2圖：本發明第一實施例之扇輪構造(二)之整體剖視 及扇葉之局部剖視圖。 第3圖：本發明第二實施例之扇輪構造(二)之立體圖。 第4圖：本發明第二實施例之扇輪構造(二)之整體剖視 及扇葉之局部剖視圖。 【主要元件符號說明】PK10393 07/07/24 200906282 [Simplified description of the drawings] Fig. 1 is a perspective view of a fan wheel structure (2) according to a first embodiment of the present invention. Fig. 2 is a cross-sectional view showing a whole of a fan wheel structure (2) according to a first embodiment of the present invention and a partial cross-sectional view of the blade. Fig. 3 is a perspective view showing the structure (2) of the fan wheel of the second embodiment of the present invention. Fig. 4 is a cross-sectional view showing a whole of a fan wheel structure (2) according to a second embodiment of the present invention and a partial cross-sectional view of the blade. [Main component symbol description]
1 扇輪 10 軸心座 11 頂蓋部 12 環牆部 13 環板部 14 扇葉 a 内部空間 T1 頂蓋部之實質厚度 T2 環牆部之實質厚度 T3 環板部之實質厚度 夾角 θ2 夾角 PK10393 07/07/24 - I 2 ——1 Fan wheel 10 Shaft seat 11 Top cover part 12 Ring wall part 13 Ring plate part 14 Fan blade a Internal space T1 The thickness of the top cover part T2 The thickness of the ring part T3 The thickness of the ring part is the angle θ2 Angle PK10393 07/07/24 - I 2 ——