TWI479086B - Cooling fan - Google Patents
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- TWI479086B TWI479086B TW101139112A TW101139112A TWI479086B TW I479086 B TWI479086 B TW I479086B TW 101139112 A TW101139112 A TW 101139112A TW 101139112 A TW101139112 A TW 101139112A TW I479086 B TWI479086 B TW I479086B
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Description
本發明係關於一種散熱風扇及其扇輪，尤其是一種適用於薄型化設計的散熱風扇及其扇輪。The invention relates to a heat dissipation fan and a fan wheel thereof, in particular to a heat dissipation fan and a fan wheel thereof suitable for a thin design.
現今電子產品普遍已朝向微型化趨勢等方向研發設計；其中裝設於各式電子產品中，用以提供預定散熱作用的散熱風扇，則同樣必須配合設計為更輕薄短小化，方可順利應用於微型化之電子裝置或電子儀器。Today's electronic products are generally designed and developed in the direction of miniaturization. The cooling fans installed in various electronic products to provide a predetermined heat dissipation must also be designed to be lighter, thinner and shorter. Miniaturized electronic devices or electronic instruments.
請參照第1圖所示，為中華民國第M350746號「薄型化風扇轉子」新型專利案，該專利案揭示一種習知薄型扇輪9。其中該薄型扇輪9具有一金屬殼體91，該金屬殼體91中央結合一軸心92，且該金屬殼體91之周壁一體向外形成一金屬扇葉支架93，該金屬扇葉支架93結合固定一塑膠扇葉部94，並於該金屬殼體91內側結合一永久磁鐵環95；藉此，該習知薄型扇輪9為薄型化設計，可供裝設於各式微型化電子產品中。Please refer to FIG. 1 for a new patent of the "Low-type fan rotor" of the Republic of China No. M350746, which discloses a conventional thin-type fan wheel 9. The thin fan wheel 9 has a metal casing 91. The metal casing 91 is centrally coupled with a shaft center 92, and a peripheral wall of the metal casing 91 integrally forms a metal blade bracket 93. The metal blade bracket 93 is formed. A plastic fan blade portion 94 is fixedly coupled to the inner side of the metal casing 91 to form a permanent magnet ring 95. The thin fan wheel 9 is thinned and can be installed in various miniaturized electronic products. in.
一般而言，在進行習知薄型扇輪9之組裝作業時，必須使該永久磁鐵環95的中心與該軸心92的中心確實對應，如此當該習知薄型扇輪9應用於散熱風扇(包含有馬達及線圈組等必要構件)時，方可確保習知薄型扇輪9具有較佳的運轉品質；然而，由於習知薄型扇輪9之金屬殼體91未設置在組裝時能夠將該永久磁鐵環95定位於正確中心位置的結構設計，因此，導致進行習知薄型扇輪9之 組裝作業的過程中，必須額外調校該永久磁鐵環95之組裝位置，且仍可能無法有效確保該永久磁鐵環95的中心與該軸心92的中心相互對應，造成組裝作業上之諸多不便；再者，亦會導致該永久磁鐵環95無法與散熱風扇之線圈組對應而失焦，造成散熱風扇之馬達感應不良，而降低散熱風扇之使用壽命，以及產生較大之噪音，故仍有加以改善之必要。In general, when performing the assembly work of the conventional thin fan wheel 9, the center of the permanent magnet ring 95 must be surely corresponding to the center of the shaft center 92, so that the conventional thin fan wheel 9 is applied to a heat dissipation fan ( When the necessary components such as a motor and a coil set are included, the conventional thin fan 9 can be ensured to have better running quality; however, since the metal casing 91 of the conventional thin fan 9 is not provided for assembly, the The structural design of the permanent magnet ring 95 is positioned at the correct center position, thus resulting in the implementation of the conventional thin fan wheel 9 During the assembly work, the assembly position of the permanent magnet ring 95 must be additionally adjusted, and the center of the permanent magnet ring 95 and the center of the shaft center 92 may not be effectively ensured to correspond to each other, resulting in many inconveniences in assembly work; Moreover, the permanent magnet ring 95 can not be defocused with the coil set of the heat dissipation fan, which causes the motor of the heat dissipation fan to be poorly sensed, reduces the service life of the heat dissipation fan, and generates a large noise, so it is still The need for improvement.
本發明主要目的係提供一種散熱風扇，該散熱風扇具有能夠有效縮減整體軸向高度的金屬基板，以供應用於各式微型化電子產品內部，並兼可確保扇輪具有較佳運轉品質者。The main object of the present invention is to provide a heat dissipating fan having a metal substrate capable of effectively reducing the overall axial height for supplying the interior of various miniaturized electronic products and ensuring better running quality of the fan wheel.
本發明次一目的係提供一種散熱風扇之扇輪，該扇輪之金屬基板可於組裝時將永久磁鐵環定位於正確中心位置者。A second object of the present invention is to provide a fan wheel for a heat dissipating fan, the metal substrate of which can position the permanent magnet ring at a correct center position during assembly.
本發明散熱風扇較佳包含一扇框、一馬達及一扇輪；該扇框設有一進風口及一出風口；該馬達設置於該扇框內部；該扇輪可旋轉地結合該馬達。其中該扇輪包含一金屬基板、一中心軸及一永久磁鐵環；該金屬基板具有一軸接部及遠離該軸接部的一結合部，該結合部設有數個葉片，該軸接部及該結合部之間設有至少一定位部，該至少一定位部具有一第一抵接緣；該中心軸設有一固接端，該固接端結合該金屬基板之軸接部，該中心軸具有一中心軸線，該中心軸線至該定位部之第一抵接緣具有一第一徑向 距離；該永久磁鐵環結合於該金屬基板，該永久磁鐵環具有一第二抵接緣，該第二抵接緣抵接該定位部之第一抵接緣，且該第二抵接緣至該永久磁鐵環之中心點具有一第二徑向距離，該第二徑向距離等於該第一徑向距離。或者，基於相同技術概念下，該至少一定位部亦可為該葉片朝向該軸接部之一側緣。The heat dissipation fan of the present invention preferably includes a frame, a motor and a wheel; the fan frame is provided with an air inlet and an air outlet; the motor is disposed inside the frame; the fan wheel rotatably couples the motor. The fan wheel includes a metal substrate, a central shaft and a permanent magnet ring. The metal substrate has a shaft joint and a joint portion away from the shaft joint. The joint portion is provided with a plurality of blades, the shaft joint portion and the joint portion. At least one positioning portion is disposed between the joint portions, the at least one positioning portion has a first abutting edge; the central shaft is provided with a fixing end, and the fixing end is coupled to the shaft joint portion of the metal substrate, the central shaft has a central axis, the first abutment edge of the central axis to the positioning portion has a first radial direction The permanent magnet ring is coupled to the metal substrate, the permanent magnet ring has a second abutting edge, the second abutting edge abuts the first abutting edge of the positioning portion, and the second abutting edge is The center point of the permanent magnet ring has a second radial distance equal to the first radial distance. Alternatively, based on the same technical concept, the at least one positioning portion may also be a side edge of the blade facing the shaft joint.
所述金屬基板具有呈相對的一第一表面及一第二表面，該永久磁鐵環結合於該第二表面，該定位部較佳為自該第一表面朝該第二表面呈***狀之凸狀結構。The metal substrate has a first surface and a second surface, and the permanent magnet ring is coupled to the second surface. The positioning portion preferably has a convex shape from the first surface toward the second surface. Structure.
所述金屬基板之第一表面較佳設有數個沖壓凹穴，該定位部為分別對應該數個沖壓凹穴的數個凸粒。Preferably, the first surface of the metal substrate is provided with a plurality of stamping pockets, and the positioning portions are a plurality of bumps respectively corresponding to the plurality of stamping pockets.
所述金屬基板較佳設有貫穿該第一表面及該第二表面的數個沖壓孔，該定位部為形成於該沖壓孔周緣的凸片。Preferably, the metal substrate is provided with a plurality of punching holes penetrating the first surface and the second surface, and the positioning portion is a tab formed on a periphery of the punching hole.
所述金屬基板的第一表面及該第二表面之間較佳形成一彎折段，該定位部為該彎折段朝向於該中心軸方向的內側壁。Preferably, a bent portion is formed between the first surface of the metal substrate and the second surface, and the positioning portion is an inner sidewall of the bent portion facing the central axis.
所述馬達包含一軸座及一線圈組，該扇輪可旋轉地結合該軸座，該線圈組設置於該軸座外周邊，該永久磁鐵環與該馬達的線圈組之間較佳具有一軸向氣隙。The motor includes a shaft seat and a coil set, the fan wheel rotatably coupling the shaft seat, the coil set is disposed at an outer periphery of the shaft seat, and preferably has a shaft between the permanent magnet ring and the coil set of the motor To the air gap.
所述扇輪之數個葉片為塑膠葉片，該塑膠葉片較佳係一體結合於該金屬基板之結合部。The plurality of blades of the fan wheel are plastic blades, and the plastic blades are preferably integrally coupled to the joint portion of the metal substrate.
所述永久磁鐵環之第二抵接緣為該永久磁鐵環之內側周緣或外側周緣。The second abutting edge of the permanent magnet ring is an inner circumference or an outer circumference of the permanent magnet ring.
所述扇框包含一基板部及一蓋板部，該基板部及該 蓋板部之間設置一側牆部，該蓋板部設有該進風口，該側牆部則設有該出風口，該馬達位於該基板部及該蓋板部之間，以構成離心式扇框結構。The fan frame includes a substrate portion and a cover portion, the substrate portion and the A side wall portion is disposed between the cover portions, the cover portion is provided with the air inlet, the side wall portion is provided with the air outlet, and the motor is located between the substrate portion and the cover portion to form a centrifugal type Fan frame structure.
為讓本發明之上述及其他目的、特徵及優點能更明顯易懂，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：請參照第2圖所示，本發明散熱風扇包含一扇框1、一馬達2及一扇輪3a。該扇框1可為軸流式扇框結構或離心式扇框結構等，本發明較佳實施例之扇框1為能夠軸向導入及徑向導出氣流的離心式扇框結構；該馬達2係結合於該扇框1內部；該扇輪3a係可旋轉地結合於該馬達2，以便藉由該馬達2驅動該扇輪3a旋轉作動。The above and other objects, features and advantages of the present invention will become more <RTIgt; The cooling fan of the present invention comprises a frame 1, a motor 2 and a fan wheel 3a. The fan frame 1 can be an axial fan frame structure or a centrifugal fan frame structure. The fan frame 1 of the preferred embodiment of the present invention is a centrifugal fan frame structure capable of axially introducing and radially extracting airflow; the motor 2 It is coupled to the inside of the fan frame 1; the fan wheel 3a is rotatably coupled to the motor 2 to drive the fan wheel 3a to rotate by the motor 2.
該扇框1可為各種幾何形狀之結構設計，例如多角形、圓形或橢圓形等；本較佳實施例中，係揭示該扇框1為四方形之框體結構。The frame 1 can be a structural design of various geometric shapes, such as a polygon, a circle or an ellipse. In the preferred embodiment, the frame 1 is a square frame structure.
本發明較佳實施例之扇框1包含一基板部11及一蓋板部12，該基板部11及該蓋板部12之間具有一間距，以供該基板部11及蓋板部12之間設置一側牆部13；其中該基板部11、蓋板部12及側牆部13彼此之間的結合及成型方式不作限制，本實施例中，該側牆部13係一體射出成型結合於該基板部11的外周緣，該蓋板部12係為一蓋板，該蓋板可拆裝地結合於該側牆部13。再者，該扇框1之蓋板部12設有一進風口121，該側牆部13則設 有一出風口131；其中該進風口121及出風口131之設置位置及數量可配合不同需求作改變。The fan frame 1 of the preferred embodiment of the present invention includes a substrate portion 11 and a cover portion 12, and a spacing between the substrate portion 11 and the cover portion 12 for the substrate portion 11 and the cover portion 12 The side wall portion 13 is disposed between the substrate portion 11, the cover portion 12 and the side wall portion 13 without limitation. In the embodiment, the side wall portion 13 is integrally molded and bonded. The cover portion 12 is an outer peripheral edge of the substrate portion 11, and the cover portion 12 is detachably coupled to the side wall portion 13. Furthermore, the cover portion 12 of the fan frame 1 is provided with an air inlet 121, and the side wall portion 13 is provided. There is an air outlet 131; wherein the position and number of the air inlet 121 and the air outlet 131 can be changed according to different needs.
本發明較佳實施例之馬達2係設置於該扇框1內部，且位於該基板部11及該蓋板部12之間；其中該馬達2為各種可供該扇輪3a結合後，用以驅動該扇輪3a旋轉作動的結構設計。如第2圖所示，本實施例中，該馬達2包含一軸座21及一線圈組22。該軸座21可一體或能夠拆裝地結合於該扇框1之基板部11，以供該扇輪3a可旋轉地結合；該線圈組22(可包含如矽鋼片、線圈或絕緣套等構件)係設置於該軸座21外周邊，用以電性連接一驅動電路(未繪示)，以便配合該線圈組22驅動該扇輪3a旋轉作動；其中該馬達2驅動扇輪3a旋轉作動的詳細結構組成及運作原理為本領域技術人員可以理解，容不贅述。The motor 2 of the preferred embodiment of the present invention is disposed inside the fan frame 1 and located between the substrate portion 11 and the cover portion 12; wherein the motor 2 is used for combining the fan wheels 3a. The structural design that drives the rotation of the fan wheel 3a. As shown in FIG. 2, in the present embodiment, the motor 2 includes a shaft seat 21 and a coil assembly 22. The axle seat 21 can be integrally or detachably coupled to the base plate portion 11 of the fan frame 1 for rotatably coupling the fan wheel 3a; the coil assembly 22 (which may include components such as a silicon steel sheet, a coil or an insulating sleeve) The motor is connected to the outer periphery of the shaft base 21 for electrically connecting a driving circuit (not shown) to drive the rotation of the fan wheel 3a in cooperation with the coil assembly 22; wherein the motor 2 drives the fan wheel 3a to rotate. The detailed structural composition and operation principle can be understood by those skilled in the art and will not be described.
本發明較佳實施例之扇輪大致可區分為以下數種實施方式：如第2及3圖所示，係揭示第一種實施例之扇輪3a，該扇輪3a包含一金屬基板31、一中心軸32及一永久磁鐵環33。該中心軸32結合於該金屬基板31之中央部位，該永久磁鐵環33結合於該金屬基板31之內側。The fan wheel of the preferred embodiment of the present invention can be roughly divided into the following embodiments: as shown in FIGS. 2 and 3, the first embodiment of the fan wheel 3a is disclosed. The fan wheel 3a includes a metal substrate 31. A central shaft 32 and a permanent magnet ring 33. The center shaft 32 is coupled to a central portion of the metal substrate 31, and the permanent magnet ring 33 is coupled to the inner side of the metal substrate 31.
該金屬基板31設有一軸接部311及遠離該軸接部311的一結合部312。該軸接部311為各種可以用以固定該中心軸32的結構設計，本實施例中，該軸接部311係為可供該中心軸32固接的固定孔；該結合部312為用以供數個葉片313設置的部位，例如：穿孔或鋸齒狀凸緣等 ，該數個葉片313較佳為塑膠葉片，該塑膠葉片可利用射出成型方式一體包覆結合於該結合部312。The metal substrate 31 is provided with a shaft connecting portion 311 and a joint portion 312 away from the shaft connecting portion 311. The shaft portion 311 is designed to fix the center shaft 32. In the embodiment, the shaft portion 311 is a fixing hole for fixing the center shaft 32. The joint portion 312 is used for the fixing portion 312. a portion where a plurality of blades 313 are provided, for example, a perforated or serrated flange The plurality of blades 313 are preferably plastic blades, and the plastic blades can be integrally bonded to the joint portion 312 by injection molding.
該金屬基板31於該軸接部311及該結合部312之間設有至少一定位部314，用以定位該永久磁鐵環33，且該至少一定位部314具有一第一抵接緣314a，該第一抵接緣314a為該定位部314抵接於該永久磁鐵環33之部位。The metal substrate 31 is provided with at least one positioning portion 314 between the shaft portion 311 and the joint portion 312 for positioning the permanent magnet ring 33, and the at least one positioning portion 314 has a first abutting edge 314a. The first abutting edge 314 a is a portion where the positioning portion 314 abuts against the permanent magnet ring 33 .
本實施例之該金屬基板31具有呈相對的一第一表面315及一第二表面316，其中該第二表面316可供結合該永久磁鐵環33，該定位部314為自該第一表面315朝該第二表面316呈***狀之凸狀結構；又，該金屬基板31之第一表面315可利用金屬沖壓加工方式設有數個沖壓凹穴H1，該定位部314為分別對應該數個沖壓凹穴H1的數個凸粒。The metal substrate 31 of the embodiment has a first surface 315 and a second surface 316 opposite to each other, wherein the second surface 316 is adapted to be coupled to the permanent magnet ring 33. The positioning portion 314 is from the first surface 315. The first surface 315 of the metal substrate 31 can be provided with a plurality of stamping pockets H1 by means of metal stamping, and the positioning portions 314 are respectively corresponding to a plurality of stampings. Several bumps of the pocket H1.
該中心軸32設有一固接端321，該固接端321係結合於該金屬基板31之軸接部311，該中心軸32之固接端321與該金屬基板31之軸接部311的固定結合方式係可以採用如射出成型包覆、卡扣、鎖固、焊接、緊配合、黏固、......等。其中該中心軸32具有一中心軸線X，該中心軸線X至該定位部314之第一抵接緣314a具有一第一徑向距離D1。The center shaft 32 is provided with a fixing end 321 which is coupled to the shaft portion 311 of the metal substrate 31. The fixing end 321 of the center shaft 32 and the shaft portion 311 of the metal substrate 31 are fixed. The bonding method can be, for example, injection molding, snapping, locking, welding, tight fitting, bonding, and the like. The central shaft 32 has a central axis X, and the first abutting edge 314a of the central portion X to the positioning portion 314 has a first radial distance D1.
該永久磁鐵環33具有一第二抵接緣331，該第二抵接緣331為該永久磁鐵環33抵接於該定位部314之部位；如第3圖所示之實施例中，該永久磁鐵環33結合於該金屬基板31之第二表面316，該永久磁鐵環33之內側周緣抵接該定位部314，因此，該第二抵接緣331即為該永 久磁鐵環33之內側周緣，其中該第二抵接緣331至該永久磁鐵環33之中心點(即為如圖所示之永久磁鐵環所圍繞形成之中心孔的中心位置)具有一第二徑向距離D2，該第二徑向距離D2等於該第一徑向距離D1；或者，如第4圖所示之實施例中，該永久磁鐵環33之外側周緣抵接該定位部314，因此，該第二抵接緣331即為該永久磁鐵環33之外側周緣，其中該第二抵接緣331至該永久磁鐵環33之中心點同樣具有該第二徑向距離D2，該第二徑向距離D2等於該第一徑向距離D1。The permanent magnet ring 33 has a second abutting edge 331. The second abutting edge 331 is a portion where the permanent magnet ring 33 abuts the positioning portion 314. In the embodiment shown in FIG. 3, the permanent The magnet ring 33 is coupled to the second surface 316 of the metal substrate 31. The inner peripheral edge of the permanent magnet ring 33 abuts the positioning portion 314. Therefore, the second abutting edge 331 is the permanent The inner peripheral edge of the permanent magnet ring 33, wherein the second abutting edge 331 to the center point of the permanent magnet ring 33 (ie, the center position of the central hole formed by the permanent magnet ring as shown) has a second a radial distance D2, the second radial distance D2 being equal to the first radial distance D1; or, in the embodiment shown in FIG. 4, the outer peripheral edge of the permanent magnet ring 33 abuts the positioning portion 314, The second abutting edge 331 is the outer peripheral edge of the permanent magnet ring 33, wherein the second abutting edge 331 to the center point of the permanent magnet ring 33 also has the second radial distance D2, the second diameter The distance D2 is equal to the first radial distance D1.
藉此，當該永久磁鐵環33結合該金屬基板31後，即可利用該定位部314將該永久磁鐵環33定位於正確中心位置，使該永久磁鐵環33的中心與該中心軸32的中心軸線X能夠確實對應，以提供較佳的組裝便利性；又，本發明較佳實施例之永久磁鐵環33與該馬達2的線圈組22之間較佳具有一軸向氣隙，相較於具有徑向氣隙之散熱風扇，係更適合應用於微型化之電子裝置或電子儀器。Thereby, after the permanent magnet ring 33 is coupled to the metal substrate 31, the permanent magnet ring 33 can be positioned at the correct center position by the positioning portion 314, and the center of the permanent magnet ring 33 and the center of the central shaft 32 can be The axis X can be surely corresponding to provide better assembly convenience; further, the permanent magnet ring 33 of the preferred embodiment of the present invention preferably has an axial air gap between the coil assembly 22 of the motor 2, as compared to A cooling fan with a radial air gap is more suitable for miniaturized electronic devices or electronic instruments.
如第5圖所示，係揭示第二種實施例之扇輪3b，該扇輪3b與第一實施方式之扇輪3a的差異在於；該金屬基板31可利用金屬沖壓加工方式設有貫穿該第一表面315及該第二表面316的數個沖壓孔H2，該定位部314為形成於該沖壓孔H2周緣的凸片。另外，如第6圖所示，係揭示該永久磁鐵環33之內側周緣抵接該定位部314，該第二抵接緣331即為該永久磁鐵環33之內側周緣；又如第7圖所示，則揭示該永久磁鐵環33之外側周緣抵接該定位部314，該第二抵接緣331亦可為該永久磁鐵環33 之外側周緣。藉此，當該永久磁鐵環33結合該金屬基板31後，同樣可利用該定位部314將該永久磁鐵環33定位於正確中心位置。As shown in FIG. 5, the fan wheel 3b of the second embodiment is disclosed. The difference between the fan wheel 3b and the fan wheel 3a of the first embodiment is that the metal substrate 31 can be provided through the metal stamping process. The first surface 315 and the plurality of punching holes H2 of the second surface 316 are the protrusions formed on the periphery of the punching hole H2. In addition, as shown in FIG. 6, it is revealed that the inner peripheral edge of the permanent magnet ring 33 abuts against the positioning portion 314, and the second abutting edge 331 is the inner peripheral edge of the permanent magnet ring 33; The outer peripheral edge of the permanent magnet ring 33 abuts the positioning portion 314, and the second abutting edge 331 can also be the permanent magnet ring 33. The outer circumference. Thereby, after the permanent magnet ring 33 is coupled to the metal substrate 31, the positioning portion 314 can also be used to position the permanent magnet ring 33 at the correct center position.
如第8及9圖所示，係揭示第三種實施例之扇輪3c，該扇輪3c與第一實施方式之扇輪3a的差異在於；該金屬基板31的第一表面315及該第二表面316之間形成一彎折段H3，該定位部314為該彎折段H3朝向於該中心軸32方向的內側壁；又，本實施例中，該永久磁鐵環33之外側周緣抵接該定位部314，因此，該第二抵接緣331則為該永久磁鐵環33之外側周緣。藉此，當該永久磁鐵環33結合該金屬基板31後，同樣可利用該定位部314將該永久磁鐵環33定位於正確中心位置。As shown in FIGS. 8 and 9, the fan wheel 3c of the third embodiment is disclosed. The difference between the fan wheel 3c and the fan wheel 3a of the first embodiment is that the first surface 315 of the metal substrate 31 and the first A bending portion H3 is formed between the two surfaces 316. The positioning portion 314 is an inner side wall of the bending portion H3 facing the central axis 32. In this embodiment, the outer peripheral edge of the permanent magnet ring 33 abuts. The positioning portion 314 is therefore the second abutting edge 331 which is the outer peripheral edge of the permanent magnet ring 33. Thereby, after the permanent magnet ring 33 is coupled to the metal substrate 31, the positioning portion 314 can also be used to position the permanent magnet ring 33 at the correct center position.
如第10圖所示，係揭示第四種實施例之扇輪3d，該扇輪3d之定位部314為前述第二及第三實施方式之定位部314的組合，其中本實施例所界定之該第二徑向距離D2等於該第一徑向距離D1的技術特徵，可以為第一及第二實施方式的第一徑向距離D1及第二徑向距離D2之定義方式的其中至少一種，以提供更佳的定位效果；藉由該第四種實施例之扇輪3d的教示，本發明散熱風扇之定位部314更可為前述各實施例之適當排列組合，其係為本領域技術人員可以理解，本文容不贅述。As shown in FIG. 10, the fan wheel 3d of the fourth embodiment is disclosed. The positioning portion 314 of the fan wheel 3d is a combination of the positioning portions 314 of the second and third embodiments, which is defined by the embodiment. The second radial distance D2 is equal to the technical feature of the first radial distance D1, and may be at least one of the definitions of the first radial distance D1 and the second radial distance D2 of the first and second embodiments, In order to provide a better positioning effect, the positioning portion 314 of the cooling fan of the present invention can be appropriately arranged and combined in the foregoing embodiments, which is a person skilled in the art, by the teaching of the fan wheel 3d of the fourth embodiment. It can be understood that this article is not described here.
如第11圖所示，係揭示第五種實施例之扇輪3e，該扇輪3e與第一實施方式之扇輪3a的差異在於：該至少一定位部314為該葉片313朝向該軸接部311之一側緣，其中該至少一定位部314同樣具有一第一抵接緣314a，該 中心軸32具有一中心軸線X，該中心軸線X至該定位部314之第一抵接緣314a具有一第一徑向距離D1；又，該永久磁鐵環33之外側周緣抵接該定位部314，因此，該第二抵接緣331則為該永久磁鐵環33之外側周緣，該第二抵接緣331至該永久磁鐵環33之中心點具有一第二徑向距離D2，該第二徑向距離D2等於該第一徑向距離D1。藉此，當該永久磁鐵環33結合該金屬基板31後，同樣可利用該定位部314將該永久磁鐵環33定位於正確中心位置。As shown in Fig. 11, the fan wheel 3e of the fifth embodiment is disclosed. The difference between the fan wheel 3e and the fan wheel 3a of the first embodiment is that the at least one positioning portion 314 is the blade 313 facing the shaft. a side edge of the portion 311, wherein the at least one positioning portion 314 also has a first abutting edge 314a, The central shaft 32 has a central axis X, and the first abutting edge 314a of the positioning portion 314 has a first radial distance D1. Further, the outer peripheral edge of the permanent magnet ring 33 abuts the positioning portion 314. Therefore, the second abutting edge 331 is the outer peripheral edge of the permanent magnet ring 33, and the second abutting edge 331 to the center point of the permanent magnet ring 33 has a second radial distance D2, the second diameter The distance D2 is equal to the first radial distance D1. Thereby, after the permanent magnet ring 33 is coupled to the metal substrate 31, the positioning portion 314 can also be used to position the permanent magnet ring 33 at the correct center position.
本發明散熱風扇可藉由該扇輪3a、3b、3c、3d、3e之金屬基板31設計，以有效縮減該扇輪3a、3b、3c、3d、3e的整體軸向高度，使本發明散熱風扇更適合應用於薄型化電子產品；又當該永久磁鐵環33欲結合該金屬基板31時，更可利用該定位部314將該永久磁鐵環33定位於正確中心位置，使該扇輪3a、3b、3c、3d、3e應用於散熱風扇時具有提升運轉品質之功效。The heat dissipating fan of the present invention can be designed by the metal substrate 31 of the fan wheels 3a, 3b, 3c, 3d, and 3e to effectively reduce the overall axial height of the fan wheels 3a, 3b, 3c, 3d, and 3e, so that the heat dissipation of the present invention The fan is more suitable for the thinned electronic product; when the permanent magnet ring 33 is to be combined with the metal substrate 31, the positioning portion 314 can be used to position the permanent magnet ring 33 at the correct center position, so that the fan wheel 3a, 3b, 3c, 3d, and 3e have the effect of improving the running quality when applied to a cooling fan.
本發明散熱風扇之扇輪3a、3b、3c、3d、3e在利用該金屬基板31之定位部314將該永久磁鐵環33定位於正確中心位置後，即能夠確保該永久磁鐵環33的中心與該中心軸32的中心軸線X相互對應，因此，在進行該扇輪3a、3b、3c、3d、3e之組裝作業的過程中，無須額外調校該永久磁鐵環33之組裝位置，可達到提升組裝便利性之功效；另外，亦能夠確保該永久磁鐵環33與該線圈組22相互對應，使該馬達2具有更佳之感應功能，進而達到提升使用壽命及降低噪音等諸多功效。The fan wheels 3a, 3b, 3c, 3d, and 3e of the heat radiating fan of the present invention can secure the center of the permanent magnet ring 33 after the permanent magnet ring 33 is positioned at the correct center position by the positioning portion 314 of the metal substrate 31. The central axis X of the central shaft 32 corresponds to each other. Therefore, during the assembly work of the fan wheels 3a, 3b, 3c, 3d, and 3e, the assembly position of the permanent magnet ring 33 is not required to be adjusted, and the lifting can be achieved. The utility model has the advantages of assembling convenience; in addition, it can also ensure that the permanent magnet ring 33 and the coil group 22 correspond to each other, so that the motor 2 has better sensing function, thereby achieving many functions such as improving the service life and reducing noise.
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內，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。While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.
〔本發明〕〔this invention〕
1‧‧‧扇框1‧‧‧Fan frame
11‧‧‧基板部11‧‧‧Parts Department
12‧‧‧蓋板部12‧‧‧ Covering Department
121‧‧‧進風口121‧‧‧Air inlet
13‧‧‧側牆部13‧‧‧ Side wall
131‧‧‧出風口131‧‧‧air outlet
2‧‧‧馬達2‧‧‧Motor
21‧‧‧軸座21‧‧‧ shaft seat
22‧‧‧線圈22‧‧‧ coil
3a、3b、3c、3d、3e‧‧‧扇輪3a, 3b, 3c, 3d, 3e‧‧‧fan wheel
31‧‧‧金屬基板31‧‧‧Metal substrate
311‧‧‧軸接部311‧‧‧Axis joint
312‧‧‧結合部312‧‧‧Combination Department
313‧‧‧葉片313‧‧‧ leaves
314‧‧‧定位部314‧‧‧ Positioning Department
314a‧‧‧第一抵接緣314a‧‧‧first arrival
315‧‧‧第一表面315‧‧‧ first surface
316‧‧‧第二表面316‧‧‧ second surface
32‧‧‧中心軸32‧‧‧ center axis
321‧‧‧固接端321‧‧‧ fixed end
33‧‧‧永久磁鐵環33‧‧‧Permanent magnet ring
331‧‧‧第二抵接緣331‧‧‧Secondary
D1‧‧‧第一徑向距離D1‧‧‧first radial distance
D2‧‧‧第二徑向距離D2‧‧‧second radial distance
H1‧‧‧沖壓凹穴H1‧‧‧ stamping pocket
H2‧‧‧沖壓孔H2‧‧‧ punching hole
H3‧‧‧彎折段H3‧‧‧Bend section
X‧‧‧中心軸線X‧‧‧ central axis
〔習知〕[study]
9‧‧‧薄型扇輪9‧‧‧Thin fan wheel
91‧‧‧金屬殼體91‧‧‧Metal housing
92‧‧‧軸心92‧‧‧Axis
93‧‧‧金屬扇葉支架93‧‧‧Metal leaf bracket
94‧‧‧塑膠扇葉部94‧‧‧Plastic fan blade
95‧‧‧永久磁鐵環95‧‧‧Permanent magnet ring
第1圖：習知薄型扇輪的組合剖視圖。Figure 1: A cross-sectional view of a conventional thin fan wheel.
第2圖：本發明第一實施例散熱風扇的立體分解圖。Fig. 2 is an exploded perspective view showing the heat dissipation fan of the first embodiment of the present invention.
第3圖：本發明第一實施例散熱風扇的組合剖視圖(一)。Fig. 3 is a sectional view (1) of a combination of a heat dissipating fan according to a first embodiment of the present invention.
第4圖：本發明第一實施例散熱風扇的組合剖視圖(二)。Fig. 4 is a sectional view showing the combination of the heat radiating fan of the first embodiment of the present invention (2).
第5圖：本發明第二實施例散熱風扇的立體分解圖。Fig. 5 is an exploded perspective view showing the heat radiating fan of the second embodiment of the present invention.
第6圖：本發明第二實施例散熱風扇的組合剖視圖(一)。Fig. 6 is a sectional view (1) of a combination of a heat dissipating fan according to a second embodiment of the present invention.
第7圖：本發明第二實施例散熱風扇的組合剖視圖(二)。Figure 7 is a sectional view showing the combination of the heat radiating fan of the second embodiment of the present invention (2).
第8圖：本發明第三實施例散熱風扇的立體分解圖。Fig. 8 is an exploded perspective view showing a heat dissipating fan according to a third embodiment of the present invention.
第9圖：本發明第三實施例散熱風扇的組合剖視圖。Fig. 9 is a sectional view showing the assembly of a heat radiating fan according to a third embodiment of the present invention.
第10圖：本發明第四實施例散熱風扇的組合剖視圖。Fig. 10 is a sectional view showing the assembly of a heat dissipation fan according to a fourth embodiment of the present invention.
第11圖：本發明第五實施例散熱風扇的組合剖視圖。Figure 11 is a sectional view showing the assembly of a heat dissipation fan according to a fifth embodiment of the present invention.
1‧‧‧扇框1‧‧‧Fan frame
11‧‧‧基板部11‧‧‧Parts Department
12‧‧‧蓋板部12‧‧‧ Covering Department
121‧‧‧進風口121‧‧‧Air inlet
13‧‧‧側牆部13‧‧‧ Side wall
131‧‧‧出風口131‧‧‧air outlet
2‧‧‧馬達2‧‧‧Motor
21‧‧‧軸座21‧‧‧ shaft seat
22‧‧‧線圈22‧‧‧ coil
3a‧‧‧扇輪3a‧‧‧fan wheel
31‧‧‧金屬基板31‧‧‧Metal substrate
311‧‧‧軸接部311‧‧‧Axis joint
312‧‧‧結合部312‧‧‧Combination Department
313‧‧‧葉片313‧‧‧ leaves
314‧‧‧定位部314‧‧‧ Positioning Department
314a‧‧‧第一抵接緣314a‧‧‧first arrival
315‧‧‧第一表面315‧‧‧ first surface
316‧‧‧第二表面316‧‧‧ second surface
32‧‧‧中心軸32‧‧‧ center axis
321‧‧‧固接端321‧‧‧ fixed end
33‧‧‧永久磁鐵環33‧‧‧Permanent magnet ring
331‧‧‧第二抵接緣331‧‧‧Secondary
D1‧‧‧第一徑向距離D1‧‧‧first radial distance
D2‧‧‧第二徑向距離D2‧‧‧second radial distance
H1‧‧‧沖壓凹穴H1‧‧‧ stamping pocket
X‧‧‧中心軸線X‧‧‧ central axis
Claims (10)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101139112A TWI479086B (en) | 2012-10-23 | 2012-10-23 | Cooling fan |
| CN201210428538.3A CN103775360A (en) | 2012-10-23 | 2012-10-31 | Heat dissipation fan and fan wheel thereof |
| CN201220565865.9U CN202955001U (en) | 2012-10-23 | 2012-10-31 | Heat dissipation fan and fan wheel thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101139112A TWI479086B (en) | 2012-10-23 | 2012-10-23 | Cooling fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201416562A TW201416562A (en) | 2014-05-01 |
| TWI479086B true TWI479086B (en) | 2015-04-01 |
Family
ID=48460577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101139112A TWI479086B (en) | 2012-10-23 | 2012-10-23 | Cooling fan |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN202955001U (en) |
| TW (1) | TWI479086B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295530A (en) * | 2013-07-18 | 2015-01-21 | 日本电产株式会社 | Blower fan and electronic device |
| JP2015021427A (en) | 2013-07-18 | 2015-02-02 | 日本電産株式会社 | Blower fan |
| JP2015031254A (en) | 2013-08-07 | 2015-02-16 | 日本電産株式会社 | Blower fan, and electronic apparatus |
| TWI623179B (en) * | 2016-10-05 | 2018-05-01 | 昆山廣興電子有限公司 | Miniaturized motor and rotor thereof |
| TWI674737B (en) * | 2018-12-28 | 2019-10-11 | 建準電機工業股份有限公司 | Motor and ceiling fan including the same |
| JP7074707B2 (en) * | 2019-03-20 | 2022-05-24 | 京セラ株式会社 | Electronic devices, imaging devices, and moving objects |
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| JP3504827B2 (en) * | 1997-06-16 | 2004-03-08 | 東京パーツ工業株式会社 | Axial air fan motor |
| CN200985889Y (en) * | 2006-08-14 | 2007-12-05 | 建凖电机工业股份有限公司 | Small-sized blowing fan |
| TWM350746U (en) * | 2008-10-13 | 2009-02-11 | Forcecon Technology Co Ltd | Thin-type fan rotor |
| TWM379924U (en) * | 2009-09-30 | 2010-05-01 | Asia Vital Components Co Ltd | Stator structure and composition of motor and fan thereof |
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2012
- 2012-10-23 TW TW101139112A patent/TWI479086B/en active
- 2012-10-31 CN CN201220565865.9U patent/CN202955001U/en not_active Expired - Fee Related
- 2012-10-31 CN CN201210428538.3A patent/CN103775360A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3504827B2 (en) * | 1997-06-16 | 2004-03-08 | 東京パーツ工業株式会社 | Axial air fan motor |
| CN200985889Y (en) * | 2006-08-14 | 2007-12-05 | 建凖电机工业股份有限公司 | Small-sized blowing fan |
| TWM350746U (en) * | 2008-10-13 | 2009-02-11 | Forcecon Technology Co Ltd | Thin-type fan rotor |
| TWM379924U (en) * | 2009-09-30 | 2010-05-01 | Asia Vital Components Co Ltd | Stator structure and composition of motor and fan thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103775360A (en) | 2014-05-07 |
| TW201416562A (en) | 2014-05-01 |
| CN202955001U (en) | 2013-05-29 |
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