201009414 九、發明說明： 【發明所屬之技術領域】 ' 本發明涉及一種音圈馬達。 【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， 適合作為電子產品（如數位相機、手機、數位攝像機等） 中之致動器（請參見 Design of a voice coil motor used in the © focusing system of a digital video camera，Magnetics, IEEE Transactions on Volume 41， Issue 10, Oct. 2005 Page(s):3979 - 3981)。 先前音圈馬達於組裝中，為保證組裝精度，多採用定 位柱與對應之定位孔相配合之方式對音圈馬達内鏡頭裝筒 及彈片進行預定位，預定位結束後，於彈片容置有該定位 柱之定位孔内點膠，從而固定相應之組件。 通常，組裝好之音圈馬達需要經過摔落測試，測試合 格之音圈馬達才能進入市場。於該測試過程中，由於音圈 馬達之微型化，造成彈片與鏡頭裝筒之間點膠空間不足， 因此於摔落測試時，常由於彈片與鏡頭裝筒之結合力不 足，導致彈片脫落，進而導致該音圈馬達之穩定性較差。 【發明内容】 有鑒於此，提供一種穩定性較佳之音圈馬達實為必要。 一種音圈馬達，該音圈馬達包括一個兩端開口之鏡筒 201009414 $載座，兩個分職於該鏡筒承餘 彳外框以及連接該内框與該外框且 分別設置有定位柱’”板=亥鏡同承载座之兩端 誃定η 1 板彈片之内框設置有定位單元， ^ ^ ^ Γ70'肖心位柱配合之表面，該定位單元與 二疋主配合將該平㈣片分別定位於該 ^ ❹ =定位單元與該定位柱配合之表面為嶋== 疋位柱通過點膠方式固定。 -伽相ΐ於先前技術，由於該音圈馬達平板彈片之定位單 70二该ΐ位柱配合之表面為粗輪表面，所以，該平板彈片 與該鏡筒承載座之定位柱點膠固定時，該膠水 β入進該粗録面之㈣巾並存儲於該孔隙巾，使該 2牛，地附著於該定位單元之表面，如此則使該平板彈片 、k定位柱之間之黏結更加牢固，使該平板彈片固定於該 鏡筒承載座上。於摔落測試以及平常之使用過程中，由= ❹该平板彈片與該鏡筒承载座結合牢固，該平板彈片不' 從該鏡筒承載座脫落，因此，該音圈馬達之穩定性較佳。 【實施方式】 下面將結合附圖對本發明作進一步之詳細說明。 «月參閱圖1 ’其為本發明實施例所提供之音圈馬達， 可供一鏡頭模組（圖未示）使用。該音圈馬達1〇包括：一 個：端開口之固定裝組30、-個收容於該固定裝組30内且 兩鳊開口之活動裝組4〇、兩個分別位於該固定裝組之兩 201009414 端之平板彈片50。 加該固定裝組30具有一個固定架32及四塊裝設於固定 木32中之磁鐵34。該固定举θ » .胁疋架32疋一個呈長方體筒狀之架 體。5亥固定架32之四個方开彡相，丨辟m』、 方形側壁圍成一個第一容置腔 ，以一谷置腔321用來收容活動裝組4〇。相鄰側壁之 相交處形成一條棱柱323，從而使得該固定架32具有四條 棱柱奶。該固定架32之四條棱柱323沿與固定架32中心 軸平订之方向分別向固定架32之底部延伸形成四個第一定 位柱324,向固定架32之頂部延伸形成四個第一定位柱 324’該第位柱324為圓柱體，該第—定位柱324用來 將平板彈片50相對於固定架32定位。 可以理解’該第一定位柱324也可單獨成型，再通過 黏結、螺紋連接等其他固接方法與固定架％固接為— 該活動裝組40裝設於固定裝組3〇之第一容置腔321 ❹ u活動裝組4〇可相對於該固定裝組沿該固定裝 :30之中心軸方向移動。該活動裝組4〇具有一個鏡筒承 ，座及繞於該鏡筒承載座41外壁之_ 42。該鏡筒承 〜座41之中心開設有一圓柱形之第二容置腔々η。該第二 今置腔412用來收容鏡頭模組中之鏡筒（圖未示）。該鏡筒 =载座=具有相對之頂部以及底部4ιι，於該頂部· /口第一谷置腔412之圓周方向等角度分佈有四個第二定位 柱413’同樣，於該底部411沿第二容置腔412之圓周方向 等角度分佈有四個第二定位柱413(圖未示），該第二定位 201009414 ί 413是徑向截面為半圓形之半圓柱體。該第二定位柱413 用於將平板料50相對於鏡筒承载座41定位。 膠八：::Τ該第二定位柱413也可單獨成型，再通過 觀連料其_接方法錢料餘41固接 為一體。 ^閱圖1及圖2 ’圖2為本發明實施例提供之音 *、、、之-種平板彈片之結構示意圖。該平板彈片具有 内框53、一外框52、連接該内框53與該外框％且 好該内框53與該外框5?夕pq々趣丄_ Μ 52之間之彈力部54、以及設置於該外 匡52之接線端子55。該平板彈片％之内框53限定一通孔 5^1 ’該通孔51使得光線能通過該平板彈片5卜該兩個平板 彈片50之結構除了接線端？ 55之長度不同之夕卜，其他结 構完全相同。 該外框52之四個角部分別設置有與第一定位柱324配 =使用之定位孔521。該定位孔521與第一定位柱324相配 ❹，將平板彈片50之外框52相對於固定架32定位，且於該 疋位孔521内壁與第一定位柱324之間通過點膠將平板彈 片50固定於固定架32上。 口該内框53設置有定位單元531，在本實施例中，該定 位單元531為定位槽，該定位槽之開口朝向通孔51且與通 孔51連通。該定位槽具有一底面532，該底面532為粗糙 表面，該粗輪表面為多孔狀結構，該粗縫表面可通過濺擊 餘刻、離子束蝕刻、電漿蝕刻和反應性離子束蝕刻等姓刻 方法中之一種形成。該粗糙表面之輪廓算術平均偏差Ra之 201009414 數值範圍為5微米至25微米。該定位槽與第二定 相配合好板W 5G㈣域料_41 .=1 第二定位柱413之間通過點膠將平板彈片-二 於鏡#承載座41上。 由於較位槽之底面532為_表面 所^當膠水滴人料位槽之底面说與該第1 該谬水滲入進該粗糙表面之多孔 於該多孔狀結構之孔隙φ，你#棚， 上什締 ❹π 1 更牢固地附著於定位 =!::則使該底面532與該第二定位柱化 固’使該平板彈片50牢固地固定於該鏡 =载座41上。於摔落測試以及平常之使用過程中，由於 "千板彈>5 50與該㈣承魅41結合㈣ 如不容易從該鏡筒承載座41脫落，因 板彈片 之穩定性較佳。 X S圈馬違10 ❹圈馬3,圖3為本發明實施例提供之音 •構與上述:板圖步^的結 之内据η目士 W ’更進一步’該平板彈片50 奶，筒承載座41之頂部410接觸之表面 =狄表二533為㈣表面。該錄表面為多孔狀結構， 通祖链表面可通過淹盤 應性離子_,|==^子_、_刻和反 |Λ. r_ ^ X方法中之一種形成。該粗糙表面之 二==二數值範圍為5微米至Μ微米。該 承载座41定位，且科定2合將平板彈片％相對於鏡筒 亥疋位槽之底面532與第二定位柱413 201009414 之間點膠，於該内框53之表面533與該鏡筒承載座4i之 頂部410之間點膠，將該平板彈片5〇固定於鏡筒承載座μ •上。 . 由於該定位槽之底面532為粗糙表面，且該平板彈片 50之内框53與該鏡筒承載座41接觸之表面為粗糙表 面’該粗链表面是多孔狀結構。所以，當膠水滴入該定位 槽之底面532與該第二定位柱413之間，該平板彈片刈之 内框53與該鏡筒承載座41之間時，該膠水滲人進該粗輪 罾表面之多孔狀結構中並存儲於該多孔狀結構之孔隙中，使 該膠水更牢固地附著於定位槽之底面532以及表面533，如 此則使該底面532與該第二定位柱413之間之黏結更加牢 固丄使内框53之表面533與該鏡筒承載座41之間黏結更 加牢固’使該平板彈片5〇牢固地固定於該鏡筒承載座竹 上。於摔落測試以及平常之使用過程中，由於該平板彈片 50與該鏡筒承載座41、结合牢固，該平板彈片％不容易從 ❹該鏡筒承載座41脫落’因此，該音圈馬達1〇之穩定性較 佳。 當然’設置於該鏡筒承載座41之第二定位柱413也可 為，柱體’那麼與該第二定位柱413之配合之平板彈片％ 之疋位單兀531應為定位孔。該相互配合之鏡筒承載座“ 之第二定位柱413與該平板彈片5〇之定位單元531之數量 不限，也可為兩個、三個或五個等。 可以理解，該平板彈片5〇之外框52之定位孔52ι之 面也可5又叶成粗輪表面，通過於該定位孔521與固定架 201009414 32之第一定位柱324之間點膠，將該平板彈片5〇固定於該 固定架32上。 另外，該音圈馬達10也可僅包括一個平板彈片5〇。該 平板彈片50之外框52之形狀也可為五邊形或 他之幾何形狀。 料等，、 將線圈42與外部電路連通，使線圈42通電，該通電 線圈42於固定裝組3〇產生之磁場中受到力之作用，Λ帶動 ❹=承魅41沿該铺承載座41之中1方向移動，當 3 42斷電時’平板彈片5〇之彈性回復力帶動該鏡筒承 载座乜目到初始位置。且該平板彈片5〇可於音圈馬達仞 =側向受到外力撞擊時為該音圈馬達1G提供—個緩衝力， 從而保護音圈馬達10,使其具有較長之使用壽命。 'n述，树日料已符合發料狀要件，遂依法 出，财請。惟，以上所述者僅為本發明之較佳實施方 =自不能以此限制本案之申請專利範圍。舉凡熟悉本案 β Ϊ 人士援依本發明之精神所作之等效修#或變化，比 應涵蓋於以下申請專利範圍内。 白 【圖式簡單說明】 圖1為本發明實施例提供之音圈馬達之分解示音圖。 之結本靖施例提供之音圈馬達之-㈣彈片 片之讀施顺供之音圈馬叙另—種平板彈 11 201009414 【主要元件符號說明】 音圈馬達 10 • 固定裝組 30 固定架 32 磁鐵 34 活動裝組 40 鏡筒承載座 41 ❿線圈 42 平板彈片 50 通孔 51 外框 52 内框 53 彈力部 54 接線端子 55 ❿ 第一容置腔 321 棱柱 323 第一定位柱 324 頂部 410 底部 411 第二容置腔 412 第二定位柱 413 定位孔 521 定位單元 531 12 201009414 底面 532 表面 533201009414 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a voice coil motor. [Prior Art] The voice coil motor has the advantages of small size, low power consumption, and low price, and is suitable as an actuator in electronic products (such as digital cameras, mobile phones, digital cameras, etc.) (see Design of a voice coil motor). Used in the © focusing system of a digital video camera, Magnetics, IEEE Transactions on Volume 41, Issue 10, Oct. 2005 Page(s): 3979-3981). In the assembly of the previous voice coil motor, in order to ensure the assembly accuracy, the positioning cylinder and the corresponding positioning hole are used to pre-position the lens barrel and the elastic piece in the voice coil motor. After the pre-positioning, the elastic piece is accommodated. The positioning hole of the positioning post is dispensed to fix the corresponding component. Usually, the assembled voice coil motor needs to pass the drop test to test the qualified voice coil motor to enter the market. During the test, due to the miniaturization of the voice coil motor, the dispensing space between the elastic piece and the lens barrel is insufficient. Therefore, in the fall test, the elastic piece often loses due to the insufficient binding force between the elastic piece and the lens loading tube, and the elastic piece falls off. This in turn results in poor stability of the voice coil motor. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a voice coil motor with better stability. A voice coil motor, the voice coil motor includes a lens barrel 201009414 for two ends, two seats are assigned to the outer frame of the lens barrel, and the inner frame and the outer frame are connected and respectively provided with positioning posts ''plate=Heil mirror and the two ends of the carrier are fixed η 1 The inner frame of the plate shrapnel is provided with a positioning unit, ^ ^ ^ Γ70' the surface of the xiong heart column, the positioning unit cooperates with the two 疋 main unit (4) The pieces are respectively positioned on the ^ ❹ = the surface of the positioning unit and the positioning column is 嶋 == The 疋 position column is fixed by the dispensing method. - The gamma phase is in the prior art, because the voice coil motor flat piece is positioned 70 The surface of the clamping column is a rough wheel surface. Therefore, when the flat elastic piece is fixed with the positioning column of the lens holder, the glue β is inserted into the (four) towel of the rough recording surface and stored in the aperture towel. Therefore, the 2 cows are grounded on the surface of the positioning unit, so that the bonding between the flat elastic piece and the k positioning column is more firm, and the flat elastic piece is fixed on the lens barrel carrier. During normal use, the flat shrapnel by = ❹ The barrel carrier is firmly coupled, and the plate spring does not fall off from the barrel carrier. Therefore, the stability of the voice coil motor is better. [Embodiment] The present invention will be further described in detail below with reference to the accompanying drawings. «Monthly referring to FIG. 1 ' is a voice coil motor provided by an embodiment of the present invention, which can be used by a lens module (not shown). The voice coil motor 1 includes: a fixed assembly 30 with an open end, a movable assembly 4, which is accommodated in the fixed assembly 30 and has two openings, and two flat elastic sheets 50 respectively located at the end of the 201009414 end of the fixed assembly. The fixed assembly 30 has a fixing frame 32 and Four magnets 34 are mounted on the fixed wood 32. The fixed θ » . 疋 疋 32 疋 疋 呈 呈 呈 呈 呈 呈 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 The square side wall encloses a first accommodating cavity, and a valley 321 is used for accommodating the movable assembly 4. The intersection of the adjacent side walls forms a prism 323, so that the fixing frame 32 has four prismatic milk. The four prisms 323 of the fixing frame 32 are along the fixing frame 32 The direction of the shaft flattening respectively extends to the bottom of the fixing frame 32 to form four first positioning posts 324, and extends to the top of the fixing frame 32 to form four first positioning posts 324'. The first column 324 is a cylinder, and the first The positioning post 324 is used to position the flat elastic piece 50 relative to the fixing frame 32. It can be understood that the first positioning post 324 can also be separately formed, and then fixed to the fixing frame by other fixing methods such as bonding, screwing, etc. The movable assembly 40 is mounted on the first accommodating cavity 321 of the fixed assembly 3 ❹ 活动 the movable assembly 4 〇 is movable relative to the fixed assembly along the central axis of the fixed assembly 30. The movable assembly 4 The crucible has a lens holder, a seat and a _ 42 around the outer wall of the barrel carrier 41. A cylindrical second accommodating chamber 开设 is formed in the center of the lens holder 41. The second chamber 412 is used to receive a lens barrel (not shown) in the lens module. The lens barrel = carrier = has a top portion and a bottom portion 4, and a plurality of second positioning posts 413' are equally distributed in the circumferential direction of the top/cavity first valley 412. Similarly, at the bottom 411 The second accommodating cavity 412 is equiangularly distributed with four second positioning posts 413 (not shown), and the second positioning 201009414 ί 413 is a semi-cylindrical with a semi-circular radial cross section. The second positioning post 413 is used to position the plate 50 relative to the barrel carrier 41. Glue eight::: Τ The second positioning post 413 can also be separately formed, and then the splicing method is used to fix the splicing method. 1 and FIG. 2 FIG. 2 is a schematic structural view of a flat plate shrapnel of the sounds *, , and the like according to an embodiment of the present invention. The flat elastic piece has an inner frame 53, an outer frame 52, and an elastic portion 54 connecting the inner frame 53 and the outer frame and preferably the inner frame 53 and the outer frame 5, the outer frame 5, and the outer frame 5, And a terminal 55 disposed on the outer casing 52. The inner frame 53 of the flat elastic piece defines a through hole 5^1'. The through hole 51 allows light to pass through the flat plate 5 and the structure of the two flat pieces 50 except the terminal. The length of 55 is different, and the other structures are identical. The four corners of the outer frame 52 are respectively provided with positioning holes 521 for use with the first positioning post 324. The positioning hole 521 is matched with the first positioning post 324, and the outer frame 52 of the flat elastic piece 50 is positioned relative to the fixing frame 32, and the flat elastic piece is glued between the inner wall of the clamping hole 521 and the first positioning post 324. 50 is fixed to the fixing frame 32. The inner frame 53 is provided with a positioning unit 531. In the embodiment, the positioning unit 531 is a positioning groove, and the opening of the positioning groove faces the through hole 51 and communicates with the through hole 51. The positioning groove has a bottom surface 532 which is a rough surface, and the surface of the coarse wheel is a porous structure, and the rough surface can be surnamed by splashing, ion beam etching, plasma etching and reactive ion beam etching. One of the engraving methods is formed. The contour of the rough surface has an arithmetic mean deviation Ra of 201009414. The value ranges from 5 microns to 25 microns. The positioning groove cooperates with the second phase to form a plate W 5G (four) domain material _41 . = 1 between the second positioning column 413 and the flat plate spring - by the mirror # bearing seat 41. Since the bottom surface 532 of the bit groove is the surface of the groove, the bottom surface of the groove is said to be infiltrated into the rough surface of the porous structure. The ❹ ❹ π 1 is more firmly attached to the positioning =!:: the bottom surface 532 and the second positioning post are solidified to securely fix the flat elastic piece 50 to the mirror=carrier 41. In the fall test and the usual use process, since the "Thousand Plates&> 5 50 is combined with the (4) enchantment 41 (4), if it is not easily detached from the lens holder 41, the stability of the plate spring is better. The XS circle is in violation of the 10th circle horse 3, and FIG. 3 is the sound structure of the embodiment of the present invention and the above: the figure of the board step ^ ^ according to the n mesher W 'further further' the flat plate spring 50 milk, cylinder bearing The surface of the top 410 of the seat 41 contacts the surface = Di Table 2 533 is the surface of (4). The surface of the recording is a porous structure, and the surface of the ancestral chain can be formed by one of the methods of flooding ions _, |==^ _, _ engraving and anti- Λ. r_ ^ X. The two surfaces of the rough surface == two values ranging from 5 microns to Μ microns. The carrier 41 is positioned, and the plate spring 2 is dispensed with respect to the bottom surface 532 of the lens barrel and the second positioning column 413 201009414, and the surface 533 of the inner frame 53 and the lens barrel Dispense between the tops 410 of the carrier 4i, and fix the flat plate 5 〇 to the lens holder μ. Since the bottom surface 532 of the positioning groove is a rough surface, and the surface of the inner frame 53 of the flat plate elastic piece 50 in contact with the lens barrel bearing seat 41 is a rough surface, the thick chain surface is a porous structure. Therefore, when the glue drops between the bottom surface 532 of the positioning groove and the second positioning post 413, between the inner frame 53 of the flat plate and the lens holder 41, the glue penetrates into the thick rim. The porous structure of the surface is stored in the pores of the porous structure, so that the glue adheres more firmly to the bottom surface 532 of the positioning groove and the surface 533, so that the bottom surface 532 and the second positioning post 413 are The bonding is more secure, so that the surface 533 of the inner frame 53 and the lens holder 41 are more firmly bonded, so that the flat elastic piece 5 is firmly fixed to the lens holder. During the fall test and the usual use, since the flat elastic piece 50 is firmly coupled with the lens barrel carrier 41, the flat elastic piece % is not easily detached from the lens barrel carrier 41. Therefore, the voice coil motor 1 The stability of 〇 is better. Of course, the second positioning post 413 disposed on the lens holder 41 may be such that the cylindrical body 531 of the plate springs and the second positioning post 413 should be a positioning hole. The number of the positioning cylinders 413 of the mutually cooperating cylinder carrier "the second positioning post 413 and the flat elastic piece 5" is not limited, and may be two, three or five, etc. It can be understood that the flat elastic piece 5 The surface of the positioning hole 52 of the outer frame 52 of the frame 52 can also be turned into a rough wheel surface, and the flat plate is fixed by the glue between the positioning hole 521 and the first positioning post 324 of the fixing frame 201009414 32. In addition, the voice coil motor 10 may also include only one flat elastic piece 5. The shape of the outer frame 52 of the flat elastic piece 50 may also be a pentagon or a geometric shape thereof. The coil 42 is connected to an external circuit to energize the coil 42. The energized coil 42 is subjected to a force in a magnetic field generated by the fixed assembly 3, and the ❹= 承 承 承 承 承 承 承 承 承 承 承 41 41 41 When the 3 42 is de-energized, the elastic restoring force of the flat elastic piece drives the lens holder to the initial position, and the flat elastic piece 5〇 can be used when the voice coil motor 仞= laterally impacted by an external force. The ring motor 1G provides a buffering force to protect the voice coil motor 10 so that It has a long service life. 'n said, the tree material has met the requirements of the material, and it is legally issued. The above is only the preferred embodiment of the invention. The scope of the patent application is the same as the equivalent of the invention in the present invention. The equivalent of the invention is not limited to the scope of the following patent application. The sounding motor diagram of the voice coil motor is provided. The sound coil motor provided by the Jing Shi example is - (4) The shrapnel film is read by Shi Shun for the voice coil Ma Xuan another - kind of flat bomb 11 201009414 [Main component symbol description] Voice coil motor 10 • Fixed assembly 30 Fixed frame 32 Magnet 34 Active assembly 40 Tube carrier 41 ❿ Coil 42 Plate ejector 50 Through hole 51 Outer frame 52 Inner frame 53 Elastic part 54 Terminal 55 ❿ First accommodating chamber 321 prism 323 first positioning post 324 top 410 bottom 411 second accommodating cavity 412 second positioning post 413 positioning hole 521 positioning unit 531 12 201009414 bottom surface 532 surface 533
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