201020671 九、發明說明： 【發明所屬之技術領域】 本發明涉及變焦鏡頭模組領域，尤其涉及一種用於變 焦鏡頭模組之音圈馬達及變焦鏡頭模組之組裝方法。 【先前技術】 音圈馬達具有體積小、用電量少及價格低廉等優點， 已廣泛用作電子產品如數位相機、手機、數位攝像機中鏡 © 頭之變焦驅動器，請參見文獻：Design of a voice coil motor used in the focusing system of a digital video camera， Magnetics, IEEE Transactions on Volume 41, Issue 20, Oct. 2005 Page(s):3979-3981 ° 常見之音圈馬達主要包括外殼、固定架、裝筒、彈片 及磁性件。該固定架通常為方體狀框架結構，其設有用於 容納裝筒之收容腔。該裝筒用以裝設鏡筒，其外侧壁纏繞 有線圈。該磁性件嵌設於固定架側壁，並環繞該裝筒且與 ®線圈相對。該彈片固定於固定架下表面，其用於施予裝筒 彈性回復力而防止裝筒受損。變焦時，該線圈與電流相通 而產生電磁場，該電磁場與磁性件之磁場相互作用’產生 可移動裝筒之驅動力驅動鏡筒相對影像感測器運動’從而 改變鏡筒内之鏡片與影像感測器之間距，進而達成變焦。 參見圖1，組裝鏡筒1至音圈馬達2内時’通常利用旋 轉件3卡合鏡筒1未設有鏍紋之一端’施予鏡筒1垂直向 下之作用力以及旋轉力矩而將鏡筒1旋入裝筒4内，然後 5 201020671 再蓋上外殼（@未示）等步驟。於組裝過程中，由於裝筒4 可活動’若不加以固定，其易隨著鏡筒1之旋入而旋轉， 故往往採用較大外力將其固定。這導致於旋入鏡筒丄前已 ^1固/<架（圖未示）下端面並與裝筒4下端面接觸之 彈片6會受到旋人裝筒之作用力及固定裳筒之作用力。而 彈片6 -般為塑膠薄片，一旦受力超出其能承受之最大值， 彈片6易產生永久變形或斷裂，造成音圈馬達報廢。 ⑩ 、有鑑於此，提供-種音圈馬達及變焦鏡頭模組組裝方 法以避免組裝鏡筒至裝筒内時彈片斷裂，從而提高生產良 率實為必要。 【發明内容】 以下將以實施例為例，說明一種音圈馬達及變焦鏡頭 模組之組裝方法。 … 該音圈馬達包括裝筒、外殼、固定架及彈片。該外殼 ❹包括設有入光孔及至少兩定位孔之頂板。該固定架具有一 容置腔及一端面。該裝筒收容於該固定架之容置腔内，其 具有上表面及與上表面相對之下表面，並自上表面向其内 部設有與該定位孔對應之定位槽。該彈片固定於該固定架 之端面，並緊鄰該裝筒之下表面。 該變焦鏡頭模組之組裝方法包括將裝設有鏡片之鏡筒 組入音圈馬達之裝筒。該將裝設有鏡片之鏡筒組入音圈馬 達之裝请包括：將彈片固定於固定架之端面，將裝筒收容 於該固疋架之谷置腔内，並使其下表面與彈片相對；採用 201020671 $殼籠罩固定架及裝筒，將定位件貫穿該定位孔並插入該 定位槽，從而將裝筒與外殼相連；施力於外殼，使外殼位 置固定，採用旋轉件將該鏡筒旋入裝筒。 與先前技術相比，本技術方案之音圈馬達之外殼設置 有至兩疋位孔，其裝筒設置與該定位孔對應之定位槽。 於組裝鏡筒至裝筒時，採用外殼籠罩固定架及裝筒，及採 用疋位件將裝筒連接於外殼之方式可避免裝筒隨旋轉產生 轉動，而大大減小將鏡筒旋入裝筒之作用力。並且，採用 施加外力於外殼，使其位置固定之方式可不必直接施加外 力於裝筒，由此進一步減小彈片承受之作用力，從而有效 避免了彈片因受到較大外力而發生塑性形變甚至斷裂。 【實施方式】 以下結合實施例及附圖對本技術方案提供之音圈馬達 及變焦鏡頭模組之組裝方法進行詳細說明。 瘳 請參見圖2與圖3,本技術方案實施例提供之音圈馬達 100包括外殼20、固定元件3〇、活動元件4〇、彈片5〇及 基座60。 外殼20包括頂板21及四個侧板22。侧板22與頂板 21連接於頂板21邊緣，由此與頂板21配合形成用於容置 固定元件30、活動元件40及彈片50之容置空間。頂板2ι 設有均貫通其相對兩表面之入光孔222及兩個定位孔 221。該兩定位孔221位於頂板21之相對兩侧。定位孔 之個數不限於兩個，其相對於頂板21之位置可根據實際需 7 201020671 要開設。外殼20用於遮罩音圈馬達100與外部之間之電磁 幹擾，其可由鎳鐵合金、導電塑膠、表面導電材料或導電 玻璃等磁遮罩材料製成。 固定組件30呈方形筒狀體，其包括固定架31及嵌設 於固定架31各侧壁之四塊磁鐵32。固定元件30設有用於 收容活動組件40之第一容置腔301。固定組件30可由鈥鐵 棚合金、彭姑合金或紹鎳钻合金等永磁材料製成。固定組 件30之形狀不限於方形，其還可為圓形、三角形、五邊形 ® 或六邊形等其他幾何形狀結構，只要其具有容置活動元件 40之第一容置腔301即可。固定架30具有端面302。該端 面302固定有彈片50。 活動組件40裝設於第一容置腔301中，其包括裝筒41 及繞於裝筒41外側壁並與磁性件32相對之線圈42。裝筒 41具有大致呈圓柱形之第二容置腔414,且其内壁設有内 螺紋411。第二容置腔414用於收容鏡頭模組中之鏡筒（圖 ©未示）。裝筒41具有上表面410及與上表面410相對之下 表面412。裝筒41自上表面410向靠近下表面412之方向 開設有兩個定位槽413。該兩個定位槽413與兩定位孔221 ——對應，且其橫截面形狀及尺寸與定位孔221之橫截面 形狀及尺寸匹配。當需將鏡筒組入裝筒41之第一容置腔 301時，定位槽413與定位孔221分別收容定位件之一端 部，以達成將活動組件40固定於頂板21。 彈片50為方形平板狀結構，其幾何中心開設有通孔 520，該通孔520用於光線射入鏡筒。彈片50固定於固定 201020671 架31之端面302，並緊鄰裝筒41之下表面412，當受外力 作用且於其可承受之範圍内時，彈片5〇發生彈性，由此給 予農筒41彈性回復力而避免裝筒41受損。彈片5〇之形狀 還可呈圓形、三角形、五邊形或六邊形等其他幾何形狀， 只要其具有彈性形變能力即可。 基座60呈方形，其與外殼20相配合形成一個用來收 谷固定元件30、活動元件4〇及兩彈片5〇之收容空間。 下面以將鏡筒組入音圈馬達100之裝筒41為例，說明 本技術方案提供之變焦鏡頭模組之組裝方法。 睛一併參閱圖3及圖4,本實施例提供之變焦鏡頭模組 之組裝方法包括以下步驟。 首先，提供定位件70、組裝有鏡片之鏡筒8〇、旋轉件 90及音圈馬達1〇〇。 定位件70包括兩定位柱71。各定位柱71橫截面之形 狀及尺寸與疋位孔221及^位槽413之形狀及尺寸匹配。 ❹鏡筒80包括第-端部81及與第一端部⑴目對之第二端部 82°其中’第一端部81開設有光通孔811，第二端部82之 外侧壁設有外螺、铁821。鏡冑8〇可藉由外螺紋821與裝筒 41之内螺紋411喃合而旋入震筒41。旋轉件9q具有㈣ 筒80之第一端部81配合之形狀，當其與第一端㈣完全 接觸後’可藉由該旋轉件9G對鏡筒⑽施加作用力，而使 鏡沿與外螺紋821唾合之方向做旋轉運動，直至到達 預疋該預定位置最佳位於鏡筒如内鏡片之焦平面處。 八次，將彈片50固定於固定架31之端面3〇2，將裝筒 9 201020671 41置於固定架31之第一容置腔301内，並使其下表面412 與彈片50相對。 彈片50可直接黏貼於固定架31之端面302,亦可藉由 本領域常見之其他方法加以固定。待固定架31固定有彈片 50後，將其固定於基座60。 再次，採用外殼20籠罩固定架31及裝筒41，並採用 定位件70將裝筒41與外殼20相連。 由於外殼20之頂板21設有定位孔221，裝筒41設有 ❿相應之定位槽413。因此，直接將定位件70之定位柱71 貫穿定位孔221並插入定位槽413即可將裝筒41連接於外 殼20。 將裝筒41置於固定架31之第一容置腔301内後，可 採用點膠或其他本領域常用之手段將磁性件32嵌設於固定 架31之側壁。 最後，施力於外殼20，使其位置固定，採用旋轉件90 离將鏡筒80旋入裝筒41之預定位置。 由於彈片50收容於外殼20内，裝筒41藉由定位件70 連接於外殼20,因此，於將鏡筒80旋入裝筒41之過程中， 只需施加外力於外殼20，使外殼20不動，然後將鏡筒80 旋入裝筒41即可。亦即，該固定外殼20之外力並不會作 用於彈片50，並且，一旦外殼20保持不動、與外殼20相 連之裝筒41亦將相對於外殼20不動，由此可避免裝筒41 隨旋轉產生轉動，而大大減小將鏡筒80旋入裝筒41之作 用力，進而減小彈片50承受之作用力，避免彈片50因受 201020671 到較大外力而發生塑性形變甚至斷裂。待將鏡筒80組入裝 筒41後，移除旋轉件90及定位件70，封閉外殼20及基座 60即可完成組裝。 綜上所述，本發明確已符合發明專利之要件，遂依法 提出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 ® 【圖式簡單說明】 圖1係先前技術將鏡筒旋轉入音圈馬達裝筒之示意圖。 圖2係本技術方案實施例提供之音圈馬達之示意圖。 圖3係圖2所示之音圈馬達之分解示意圖。 圖4係採用本技術方案提供之變焦鏡頭模組組裝方法 將鏡筒旋入裝筒之示意圖。 【主要元件符號說明】 鏡闾 1 ' 80 彈片 6、 50 音圈馬達 2、 100 裝筒 4、 41 固定組件 30 活動組件 40 基座 60 外殼 20 11 21 21201020671 IX. Description of the Invention: The present invention relates to the field of zoom lens modules, and more particularly to a method for assembling a voice coil motor and a zoom lens module for a zoom lens module. [Prior Art] The voice coil motor has the advantages of small size, low power consumption and low price. It has been widely used as a zoom driver for electronic products such as digital cameras, mobile phones, and digital cameras. Please refer to the literature: Design of a Voice coil motor used in the focusing system of a digital video camera, Magnetics, IEEE Transactions on Volume 41, Issue 20, Oct. 2005 Page(s):3979-3981 ° Common voice coil motors mainly include housing, mounting bracket, and mounting Cartridges, shrapnel and magnetic parts. The holder is generally a square frame structure provided with a receiving cavity for receiving the cartridge. The barrel is used to mount a lens barrel, and a coil is wound around the outer side wall. The magnetic member is embedded in the side wall of the holder and surrounds the barrel and is opposite to the ® coil. The elastic piece is fixed to the lower surface of the fixing frame for applying elastic recovery force of the charging cylinder to prevent damage to the loading cylinder. When zooming, the coil communicates with the current to generate an electromagnetic field, and the electromagnetic field interacts with the magnetic field of the magnetic member to generate a driving force of the movable cartridge to drive the lens barrel relative to the image sensor to change the lens and image sense in the lens barrel. The distance between the detectors is used to achieve zooming. Referring to FIG. 1, when the lens barrel 1 is assembled into the voice coil motor 2, 'the rotation of the lens barrel 1 is usually not provided with one end of the cymbal 1' to apply the vertical downward force of the lens barrel 1 and the rotational moment. The lens barrel 1 is screwed into the barrel 4, and then 5 201020671 is then covered with a casing (@ not shown). In the assembly process, since the cartridge 4 is movable, if it is not fixed, it is easily rotated as the lens barrel 1 is screwed in, so that it is often fixed by a large external force. This causes the elastic piece 6 which has been screwed into the lower end of the lens barrel and is in contact with the lower end surface of the holder 4 and is in contact with the lower end surface of the barrel 4 to be subjected to the force of the rotation cylinder and the action of the fixed tube. force. The shrapnel 6 is generally a plastic sheet. Once the force exceeds the maximum value that can be withstood, the shrapnel 6 is prone to permanent deformation or breakage, causing the voice coil motor to be scrapped. 10. In view of this, it is necessary to provide a method of assembling a voice coil motor and a zoom lens module to avoid breakage of the shrapnel when assembling the lens barrel into the barrel, thereby increasing production yield. SUMMARY OF THE INVENTION Hereinafter, an embodiment of a voice coil motor and a zoom lens module will be described by taking an embodiment as an example. ... The voice coil motor includes a barrel, a housing, a holder and a spring. The housing ❹ includes a top plate having a light entrance hole and at least two positioning holes. The holder has a receiving cavity and an end surface. The loading cylinder is received in the receiving cavity of the fixing frame, and has an upper surface and a lower surface opposite to the upper surface, and a positioning groove corresponding to the positioning hole is provided from the upper surface to the inner portion thereof. The elastic piece is fixed to the end surface of the fixing frame and is adjacent to the lower surface of the loading cylinder. The method of assembling the zoom lens module includes assembling a lens barrel equipped with a lens into a barrel of a voice coil motor. The assembly of the lens barrel with the lens into the voice coil motor includes: fixing the elastic piece to the end surface of the fixing frame, and accommodating the charging tube in the valley cavity of the fixing frame, and the lower surface thereof and the elastic piece Relatively; adopting the 201020671 $shell cage fixing bracket and the loading cylinder, the positioning member is inserted through the positioning hole and inserted into the positioning groove, thereby connecting the charging cylinder to the outer casing; applying force to the outer casing to fix the outer casing position, and rotating the mirror The barrel is screwed into the barrel. Compared with the prior art, the outer casing of the voice coil motor of the present technical solution is provided with two clamping holes, and the charging cylinder is provided with a positioning groove corresponding to the positioning hole. When assembling the lens barrel to the loading cylinder, the outer casing is used to cover the fixing frame and the loading cylinder, and the clamping member is connected to the outer casing by means of the clamping member, thereby avoiding the rotation of the loading cylinder with the rotation, and greatly reducing the rotation of the lens barrel. The force of the cylinder. Moreover, by applying an external force to the outer casing to fix the position, it is not necessary to directly apply an external force to the loading cylinder, thereby further reducing the force applied by the elastic piece, thereby effectively preventing the elastic piece from being plastically deformed or even broken due to a large external force. . [Embodiment] Hereinafter, a method of assembling a voice coil motor and a zoom lens module provided by the present technical solution will be described in detail with reference to the embodiments and the accompanying drawings. Referring to FIG. 2 and FIG. 3, the voice coil motor 100 provided by the embodiment of the present technical solution includes a housing 20, a fixing component 3, a movable component 4, a spring 5, and a base 60. The outer casing 20 includes a top plate 21 and four side plates 22. The side plate 22 and the top plate 21 are coupled to the edge of the top plate 21, thereby cooperating with the top plate 21 to form an accommodation space for accommodating the fixing member 30, the movable member 40, and the elastic piece 50. The top plate 2i is provided with a light entrance hole 222 and two positioning holes 221 each passing through opposite surfaces thereof. The two positioning holes 221 are located on opposite sides of the top plate 21. The number of positioning holes is not limited to two, and its position relative to the top plate 21 can be opened according to actual needs 7 201020671. The outer casing 20 is used to shield electromagnetic interference between the voice coil motor 100 and the outside, and may be made of a magnetic mask material such as a nickel-iron alloy, a conductive plastic, a surface conductive material, or a conductive glass. The fixing assembly 30 has a square cylindrical body including a fixing frame 31 and four magnets 32 embedded in the respective side walls of the fixing frame 31. The fixing member 30 is provided with a first accommodating cavity 301 for accommodating the movable assembly 40. The fixing assembly 30 can be made of a permanent magnet material such as a stellite alloy, a Pengu alloy or a sinter nickel alloy. The shape of the fixing member 30 is not limited to a square shape, and may be other geometric structures such as a circle, a triangle, a pentagon, or a hexagon as long as it has the first accommodating cavity 301 accommodating the movable member 40. The holder 30 has an end face 302. The end face 302 is fixed with a resilient piece 50. The movable component 40 is mounted in the first accommodating cavity 301, and includes a loading cylinder 41 and a coil 42 wound around the outer side wall of the loading cylinder 41 and opposite to the magnetic member 32. The cartridge 41 has a second cylindrical receiving cavity 414 and an inner wall thereof is provided with an internal thread 411. The second accommodating cavity 414 is configured to receive a lens barrel in the lens module (FIG. © not shown). The cartridge 41 has an upper surface 410 and a lower surface 412 opposite the upper surface 410. The loading cylinder 41 is provided with two positioning grooves 413 from the upper surface 410 toward the lower surface 412. The two positioning slots 413 correspond to the two positioning holes 221, and the cross-sectional shape and size thereof match the cross-sectional shape and size of the positioning holes 221. When the lens barrel is assembled into the first accommodating cavity 301 of the loading cylinder 41, the positioning groove 413 and the positioning hole 221 respectively receive one end of the positioning member to fix the movable component 40 to the top plate 21. The elastic piece 50 is a square flat plate structure, and its geometric center is provided with a through hole 520 for light to enter the lens barrel. The elastic piece 50 is fixed to the end surface 302 of the frame 201012671 and is adjacent to the lower surface 412 of the loading cylinder 41. When subjected to an external force and within a range that can be withstood, the elastic piece 5〇 is elasticized, thereby giving the agricultural tube 41 an elastic recovery. Force to avoid damage to the cartridge 41. The shape of the elastic piece 5 还可 can also be other geometric shapes such as a circle, a triangle, a pentagon or a hexagon, as long as it has an elastic deformation ability. The base 60 has a square shape and cooperates with the outer casing 20 to form a receiving space for the valley fixing member 30, the movable member 4'', and the two elastic pieces 5''. The assembly method of the zoom lens module provided by the present technical solution will be described below by taking the cartridge 41 of the voice coil motor 100 as an example. Referring to FIG. 3 and FIG. 4 together, the assembling method of the zoom lens module provided in this embodiment includes the following steps. First, a positioning member 70, a lens barrel 8A incorporating a lens, a rotating member 90, and a voice coil motor 1A are provided. The positioning member 70 includes two positioning posts 71. The shape and size of the cross section of each positioning post 71 match the shape and size of the clamping hole 221 and the positioning groove 413. The cymbal cylinder 80 includes a first end portion 81 and a second end portion 82 opposite to the first end portion (1). The first end portion 81 defines an optical through hole 811, and the second end portion 82 has an outer side wall. External snail, iron 821. The mirror 8 can be screwed into the shock cylinder 41 by the external thread 821 and the internal thread 411 of the cartridge 41. The rotating member 9q has a shape in which the first end portion 81 of the (four) cylinder 80 is fitted. When it is in full contact with the first end (4), the rotating member 9G can apply a force to the lens barrel (10) to make the mirror edge and the external thread. The 821 is rotated in the direction of rotation until the predetermined position is reached, preferably at the focal plane of the lens barrel, such as the inner lens. Eight times, the elastic piece 50 is fixed to the end surface 3〇2 of the fixing frame 31, and the loading cylinder 9 201020671 41 is placed in the first accommodating cavity 301 of the fixing frame 31, and the lower surface 412 is opposed to the elastic piece 50. The elastic piece 50 can be directly adhered to the end surface 302 of the fixing frame 31, and can also be fixed by other methods commonly used in the art. After the elastic piece 50 is fixed to the fixing frame 31, it is fixed to the base 60. Again, the housing 31 and the cartridge 41 are covered by the outer casing 20, and the cartridge 41 is attached to the outer casing 20 by means of a positioning member 70. Since the top plate 21 of the outer casing 20 is provided with a positioning hole 221, the charging cylinder 41 is provided with a corresponding positioning groove 413. Therefore, the cartridge 41 can be attached to the outer casing 20 by directly inserting the positioning post 71 of the positioning member 70 through the positioning hole 221 and inserting into the positioning groove 413. After the loading cylinder 41 is placed in the first accommodating cavity 301 of the fixing frame 31, the magnetic member 32 can be embedded in the side wall of the fixing frame 31 by dispensing or other means commonly used in the art. Finally, the outer casing 20 is biased to a fixed position, and the rotating member 90 is used to rotate the lens barrel 80 into a predetermined position of the loading cylinder 41. Since the elastic piece 50 is received in the outer casing 20, the loading cylinder 41 is connected to the outer casing 20 by the positioning member 70. Therefore, in the process of screwing the lens barrel 80 into the charging cylinder 41, only an external force is applied to the outer casing 20, so that the outer casing 20 does not move. Then, the lens barrel 80 is screwed into the barrel 41. That is, the external force of the fixed outer casing 20 does not act on the elastic piece 50, and once the outer casing 20 is held still, the charging cylinder 41 connected to the outer casing 20 will also be stationary with respect to the outer casing 20, thereby preventing the loading cylinder 41 from rotating. The rotation is generated to greatly reduce the force of screwing the lens barrel 80 into the loading cylinder 41, thereby reducing the force applied by the elastic piece 50, and preventing the elastic piece 50 from being plastically deformed or even broken due to the large external force of 201020671. After the lens barrel 80 is assembled into the loading cylinder 41, the rotating member 90 and the positioning member 70 are removed, and the outer casing 20 and the base 60 are closed to complete the assembly. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the present invention are intended to be included within the scope of the following claims. ® [Simple Description of the Drawings] Figure 1 is a schematic view of a prior art technique of rotating a lens barrel into a voice coil motor package. 2 is a schematic diagram of a voice coil motor provided by an embodiment of the present technical solution. Figure 3 is an exploded perspective view of the voice coil motor shown in Figure 2. FIG. 4 is a schematic view showing the assembly method of the zoom lens module provided by the technical solution. [Main component symbol description] Mirror 1 ' 80 shrapnel 6, 50 voice coil motor 2, 100 cartridge 4, 41 fixing assembly 30 movable assembly 40 base 60 housing 20 11 21 21
201020671 頂板 侧板 入光孔 定位孔 固定架 磁性件 第一容置腔 端面 ®線圈 第二容置腔 内螺紋 上表面 下表面 定位槽 通孔 定位件 旋轉件 定位柱 第一端部 第二端部 光通孔 外螺紋 22 222 221 31 32 301 302 42 414 411 410 412 413 520 70 3 > 90 71 81 82 811 821 12201020671 Top plate side plate light hole positioning hole holder magnetic part first accommodating cavity end surface □ coil second accommodating cavity internal thread upper surface lower surface positioning groove through hole locating piece rotating part positioning column first end second end Optical through hole external thread 22 222 221 31 32 301 302 42 414 411 410 412 413 520 70 3 > 90 71 81 82 811 821 12