201008088 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種於遭受撞擊時不易損壞之彈片及一種 具有該彈片之音圈馬達。 【先前技術】 音圈馬達致動器具有體積小、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、行動電話、數位 攝像機等）中之致動器（請參見Design of a voice coil motor ❹ used in the focusing system of a digital video camera， Magnetics, IEEE Transactions on Volume 41, Issue 10, Oct. 2005 Page(s):3979 - 3981)° 常見之音圈馬達主要包括一固定架及一可活動地裝設 於該固定架内之裝筒及至少一彈片’該彈片具有一通孔、 一靠近該通孔之内框及一遠離該通孔之外框’該彈片之外 框與固定架相固接，其内框與裝筒相固接。該彈片具有可 撓性，可用來保護音圈馬達。 ❹ 惟，常見之音圈馬達中之彈片於垂直於裝筒中心軸方 向（本發明稱其為側向）之可撓性不佳’從而使得具有該 彈片之音圈馬達遭受侧向撞擊時，該彈片容易因其側向上 之可撓性不佳而損壞，進而縮短了該音圈馬達之使用壽命。 【發明内容】 有鑒於此，提供一種侧向上之可撓性較佳之彈片及一 種具有該彈片之音圈馬達實為必要。 一種音圈馬達之彈片，該彈片具有一平板’該平板之 201008088 内框及四個圍 、 — ❹ 中央設置有一通孔，該平板具有一外框 繞該通孔中心對稱分佈、且位於該外框與該内框之間 力部’該外框具有四個外側連接部，該彈力部具有 部、-與該管折部相對之弧形部及一位於該彎折部血 • t部之間之延伸部，料折部之—端錢㈣連接部相 .連，另-端與該延伸部之一端相連，該弧形部之一端盘該 ，内框相連，另-端與該延伸部之另一端相連，該彈力部: 延伸部跨越與該彈力部之彎折部相連之外側連 鄰之另-外側連接部之連線之中垂線，該延伸部相= ::::侧邊，且該延伸部之侧邊平行於其相對應之該外 —;種曰圈馬達’其包括一兩端開口之固定裝組及一收 二：：定裝組内之兩端開口之活動裝組，該音圈馬達進 步包括兩個分別位於該活動裝組兩端之彈片 ❿ ;一平板，該平板之中央設置有-通孔，該平板具二 框、-内框及四個圍繞該通孔中心對稱分佈、且位於 内框之間之彈力部，該外框具有四個外側連接；， 具有一彎折部、一與該彎折部相對之狐形部及-於該f折部與該_部1之延伸部 侧連接部相連，另-端與該延伸部之-二： 内框相連，另一端與該延伸部之另-端 相連雜力部之延伸部跨越與該彈力部之f 外側連接部及其相鄰之另-外側連接部之連線之；垂：， 該延伸部具有相互平行之兩側邊，且該延伸部之=:行 8 201008088 於其相對應之該外框之側邊。 與先前技術相比，本發明實施例所提供之 部具有彎折部、連接部及弧形部，該彎折 .形部降低了該彈片側向上之岸力隼 連接錢弧 .ί 可撓性較佳’採用該彈片之音圈馬達致較耐 進而使侍該音圈馬達具有較長之使用壽命。 【實施方式】 β可/卜其為本發时施例所提供之音圈馬達10, β 鏡頭模組（圖未示）使用。該音圈馬達Η)包括：- 兩知間口之固定虞細 疋裝、、且30、一活動地收容於該固定裝組3Θ 内、且兩端開口之活動萝έ 3〇之兩端之彈片50 兩個分別位於該固定裝組 32中m裝：3:具有一固定架32及四塊裝設於固定架 以τ之磁鐵34。該固宕起π你 σ 該固定牟W夕/ 架 方體筒狀之架體。 2之四個方形側壁圍成一第一容置腔321，該第 ❹二 容活動裝組4〇。兩兩侧壁之相交處形 d :而使得該固定架32具有四條棱323。該 固二^之四條棱323沿固定架％中心轴方向向固定架 2之底。卩延伸形成四個第一 - 疋位早兀324,向固定架32之 頂4延伸形成四個第—枝單元324。該第位單元324 用來將固定架32與彈片5〇〜^ 後 ^ 〇疋位並固定。本實施例中，該 第一定位單元324為定位柱。 田然’遠第-疋位單元324亦可為定位孔，該第一定 ^ 324之個數亦可為兩個、三個或更多個。 201008088 固定架32亦可沒有第-定位單元二 動裝筒41外壁之線圈42。該活 “ 3 === =容鏡頭模組中之鏡筒（圖未示)。該第二容置請： =;=於活動裝筒41之中心軸方向延伸形成八個第二 動^ 41 it個第二定位柱413中，四個均勻分佈於活 =二=及^ 可理解’該第二定位柱413亦可單獨成型 合黏結、螺接等其他固接方法與活動裝筒41固接為:體: 明參閱圖2,該彈片50具有一方形平板51。該平板51 ❿有^孔51〜該通孔510使得光線能穿過 該平板51具有一遠離該通孔510之外框52、一靠近該 通孔训之内框53及四個圍繞該通孔训中心對稱分佈°、 且位於該外框52及内框53之間之彈力部54。 該外框52為具有依次相連之第一側邊521、第二側邊 522、第三側邊523及第四側邊524之方形結構。其中，嗜 第一侧邊52!與第三側邊523平行，第二側邊切與第四〆 側邊524平行。 201008088 該外框52具有四個分別與該四個彈力部54之一端相 連之外側連接部525、526、527及528。其中，該外侧連接 部525與外侧連接部526相鄰，與外侧連接部528相鄰， 與外側連接部527相對。 外側連接部525與外侧連接部526之間之連線之中垂 線X與外側連接部525與外側連接部528之間之連線之中 垂線Y將該平板51分為第一區域61、第二區域62、第三 區域63及第四區域64。其中，該第一區域61與該第二區 ❿域62相鄰，與該第三區域63相對，與該第四區域64相鄰。 該外框52還具有四個與第一定位單元324配合使用之 定位孔529。該定位孔529與第一定位單元324相配合將彈 片50與固定架32定位並固定。為了使得與固定架32固定 之更牢，亦可於定位孔529與第一定位單元324之間點膠。 該内框53開設有四個開口朝向通孔510、且與通孔510 連通之凹口 531。該凹口 531與第二定位柱413相配合將彈 片50與活動裝筒41定位並固定。為了使得與活動裝筒41 固定之更牢，亦可於凹口 531與第二定位柱413之間點膠。 當然，該凹口 531亦可為不與通孔510連通之通孔。 該彈力部54具有一位於該平板51之第一區域61中之 彎折部541、一與該彎折部541相對之弧形部542及一位於 該彎折部541及弧形部542之間之延伸部543。 該彎折部541具有一開始段5411、兩個沿通孔510之 圓周方向延伸之第一伸長段5412、第二伸長段5413及一位 於該第一伸長段5412、第二伸長段5413之間之弧形折返段 11 201008088 5415。其中，該第一伸長段5412之長度小於該第二伸長段 5413之長度。 該開始段5411平行於該通孔510之徑向，且其一端與 該外側連接部525相連，另一端與該第一伸長段5412之一 端相連。該第一伸長段5412之另一端與該折返段5415之 一端相連。該折返段5415之另一端與該第二伸長段5413 之一端相連，以使該第一伸長段5412、折返段5415及第二 伸長段5413形成一開口方向朝向第一侧邊521之U形結 ©構。本實施例中，該第一伸長段5412及該第二伸長段5413 均為直線結構。 當然，該第一伸長段5412及該第二伸長段5413亦可 為弧形結構。 該延伸部543具有靠近通孔510之内侧邊5431及遠離 通孔510、且與該内側邊5413相平行之外側邊5433，且該 外側邊5433平行於第一側邊521。該延伸部543之一端連 ^接於該第二伸長段5413之另一端，另一端連接於該弧形部 542之遠離該内框53之端部，即，該延伸部543跨越中垂 線Y。 該弧形部542位於該平板51之第二區域62中，且其 遠離延伸部543之端部與該内框53相連。 當然，該音圈馬達10亦可只有一彈片50。 由於該彈力部54具有一位於該平板51之第一區域61 中之彎折部541、一與該彎折部541相對之弧形部542及一 位於該彎折部541及弧形部542之間之延伸部543,該彎折 12 201008088 部541、延伸部543及弧形部542降低了該彈片50側向上 之應力集中之程度’從而使得該彈片％側向上之可挽性較 =，採㈣彈片50之音圈馬達1Q致較耐震，進而使得該 ，曰圈馬達10具有較長之使用壽命。 •將線圈42與外部電路連通，使線圈42内有電流流動， 而通有電流之線圈42於固定裝組30產生之磁場中受到力 =作用’帶動活動裝筒41沿其中心軸方向移動，當線圈U ，有電流流動時’彈片5()中之彈性回復力帶動該 〇 =回到初始位置，且該彈片5〇可於音圈馬達1〇之側向 :圈=擊時為該音圈馬達10提供一緩衝力，從而保護 θ圈^達10,使其具有較長之使用壽命。 喷參關3’其為本發明第二實施例之音圈馬達（圖未 彈片50a，其與彈片術基本相同，具有—平板％， =板，之幾何中心開設有一通孔51〇a，該平板&還 二有一退離該通孔遍之外框52a、一靠近該通孔池之 ❹内框53a及四個圍繞該通孔5術中心對稱分佈、且位於該 2框❿及内框53a之間之彈力部％，該外框仏為具有 =相連之第一侧邊521a、第二側邊5瓜、第三側邊523a ^四㈣524a之方形結構’該外框仏還具有四個分別 f個彈力部543之—端相連之外側連接部525a、526a、 527a及5施，且外側連接部如與外側連接部$施之間 之連線之中垂線XI與外側連接部525a與外側連接部现 ^間之連線之中垂線Y1將該平板％分為第-區域61a、 ’ 一區域62a、第三區域63a及第四區域⑷，該彈力部5知 13 201008088 具有一與外侧連接部525a相連之彎折部541a、一與該彎折 部541a相對之弧形部542a及一位於該彎折部541a及弧形 部542a之間之延伸部543a，該延伸部543a具有相互平行 之内側邊5431a及外侧邊5433a，不同之處在於：該彎折部 ψ 541a具有一開始段5411a、三個沿通孔510a之圓周方向延 Λ 伸之第一伸長段5412a、第二伸長段5413a與第三伸長段 5414a及兩個折返段5415a，其中，一折返段5415a位於第 一伸長段5412a與第二伸長段5413a之間，且與第一伸長 ❹段5412a與第二伸長段5413a形成一 U形結構，另一折返 段5415a位於第二伸長段5413a與第三伸長段5414a之間， 且與第二伸長段5413a與第三伸長段5414a形成一 U形結 構，第一伸長段5412a之長度小於該第二伸長段5413a之 長度，第二伸長段5413a之長度小於第三伸長段5414a之 長度，該弧形部542a與該内框53a相連之端部位於該平板 51a之第四區域64a，該延伸部543a之外側邊5433a平行於 第四侧邊524a，且該延伸部543a跨越中垂線XI。 ◎ 請參閱圖4,其為本發明第三實施例之音圈馬達（圖未 示）之彈片50b。該彈片50b具有一平板51b。該平板51b 之幾何中心開設有一通孔510b。該平板51b還具有一遠離 該通孔510b之外框52b、一靠近該通孔510b之内框53b 及四個圍繞該通孔510b中心對稱分佈、且位於該外框52b 及内框53b之間之彈力部54b。 該外框52b呈圓形，它具有四個分別與該四個彈力部 54b之一端相連之外側連接部525b、526b、527b及528b。 14 201008088 其中，該外側連接部525b與外側連接部526b相鄰，與外 側連接部528b相鄰，與外侧連接部527b相對。 該外側連接部525b與外侧連接部526b之間之連線之 中垂線X2與外側連接部525b與外侧連接部528b之間之連 線之中垂線Y2將該平板51b分為第一區域61b、第二區域 62b、第三區域63b及第四區域64b。其中，該第一區域61b 與該第二區域62b相鄰，與該第三區域63b相對，與該第 四區域64b相鄰。 ❿ 該彈力部54b具有一位於該平板51b之第一區域61b 中之彎折部541b、一與該彎折部541b相對之弧形部542b 及一位於該彎折部541b及弧形部542b之間之延伸部 543b。其中，該延伸部543b具有内侧邊5431b及與内側邊 5431b相平行之外側邊5433b，且該延伸部543b平行於與 其相對應之外框52b之側邊。 該彎折部541b之一端與外側連接部525b相連，另一 ©端與該延伸部543b之一端相連，且該彎折部541b之開始 段5411b與該通孔510b之徑向之間之夾角為30度。該延 伸部543b之另一端與該弧形部542b之一端相連，該弧形 部542b之另一端與該内框53b相連，即，該延伸部543b 跨越中垂線X2。 當然，該彎折部541b之開始段5411b與該通孔510b 之徑向之間之夾角亦可為20度或10度等其他度數，應根 據實際情況來設定。 當然，該伸長段之個數還可為四個或五個或更多個， 15 201008088 應根據實際需要來設計。 形等其它結 當然’該外框之形狀亦可為五邊形或六邊 構之幾何形狀。 付〇赞明專利之要件 絲上所述，本發明確 請1，以上所述者僅為本發明:較佳；= 二制本案之申請專利範圍。舉凡熟悉本案 ❹ 應；蓋於精神所作之等效修飾或變化，皆 叫盈歹、Μ下甲凊專利範圍内。 【圖式簡單說明】 圖1係本發明第—實施 圈馬達具有彈片。 中之日圈馬達示意圖’該音 圖 圖 ❹ 圖 圖2係本發明第—實施例中之音圈馬達之彈片之示意 圖3係本發明第二實施例中之音圈馬達之彈片之示意 圖4係本發明第三實施例中之音圈馬達之彈片之示意 10 30 40 50 > 50a ' 50b 32 【主要元件符號說明】 音圈馬達 固定裝組 活動裝組 彈片 固定架 磁鐵 34 16 321 201008088 第一容置腔 棱 第一定位單元 活動裝筒201008088 IX. Description of the Invention: [Technical Field] The present invention relates to a shrapnel that is not easily damaged when subjected to an impact and a voice coil motor having the shrapnel. [Prior Art] The voice coil motor actuator 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 ❹ used in the focusing system of a digital video camera, Magnetics, IEEE Transactions on Volume 41, Issue 10, Oct. 2005 Page(s): 3979 - 3981) ° Common voice coil motors mainly include a fixed And a cartridge that is movably mounted in the holder and at least one elastic piece. The elastic piece has a through hole, an inner frame adjacent to the through hole, and a frame away from the through hole. It is fixed to the fixing frame, and the inner frame is fixed to the charging cylinder. The shrapnel is flexible and can be used to protect the voice coil motor.惟 only, the elastic piece in the common voice coil motor is in a direction perpendicular to the central axis of the loading cylinder (referred to as the lateral direction in the present invention), so that the voice coil motor having the elastic piece is subjected to lateral impact. The shrapnel is easily damaged by its laterally poor flexibility, thereby shortening the service life of the voice coil motor. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a shrapnel having a laterally superior flexibility and a voice coil motor having the shrapnel. A shrapnel of a voice coil motor, the shrapnel having a flat plate of the 201008088 inner frame and four walls, a central portion of the flat plate, a through hole is disposed in the center, the flat plate has an outer frame symmetrically distributed around the center of the through hole, and is located outside the outer hole a force portion between the frame and the inner frame, the outer frame has four outer connecting portions, the elastic portion has a portion, an arc portion opposite to the tube folded portion, and a portion between the blood portion and the bent portion The extension portion, the end portion of the material folding portion (four) is connected, and the other end is connected to one end of the extension portion, and one end of the curved portion is connected to the inner frame, and the other end is connected to the extension portion. The other end is connected to the elastic portion: the extension portion spans a line connecting the other side of the outer side of the elastic portion connected to the bent portion, and the extension portion is the ::::: side edge, and The side of the extension is parallel to the corresponding one of the outer; the ring motor 包括 includes a fixed assembly with a two-end opening and a movable assembly of: two ends of the assembly group; The voice coil motor advancement includes two shrapnels respectively located at opposite ends of the movable assembly; a flat plate, The center of the flat plate is provided with a through hole, the flat plate has two frames, an inner frame and four elastic portions symmetrically distributed around the center of the through hole and located between the inner frames, the outer frame having four outer connections; a bent portion, a fox-shaped portion opposite to the bent portion, and the f-folded portion is connected to the extended-side connecting portion of the _ portion 1, and the other end is connected to the second portion of the extending portion And extending at the other end to the other end of the extension portion, the extension portion of the hybrid portion spans the connection between the outer connection portion of the elastic portion and the adjacent outer-outer connection portion; and the extension portion has The two sides parallel to each other, and the extension == row 8 201008088 on its corresponding side of the outer frame. Compared with the prior art, the portion provided by the embodiment of the present invention has a bending portion, a connecting portion and an arc portion, and the bending portion reduces the lateral force of the elastic piece to connect the money arc. Preferably, the voice coil motor using the shrapnel is more resistant and thus has a longer service life for the voice coil motor. [Embodiment] β can be used in the voice coil motor 10 and the β lens module (not shown) provided in the embodiment of the present invention. The voice coil motor Η) comprises: - a fixed 虞 两 两 30 、 、 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 50 two are respectively located in the fixed assembly 32, m: 3: has a fixed frame 32 and four magnets 34 mounted on the fixed frame with τ. The solid 宕 π you σ the fixed 牟 W 夕 / frame square tubular frame. The four square side walls of the two enclose a first accommodating cavity 321 which is a movable attire set. The intersection of the two side walls is d: such that the holder 32 has four ribs 323. The four ribs 323 of the solid two are oriented toward the bottom of the holder 2 along the central axis of the holder. The crucible extends to form four first-slots 324 which extend toward the top 4 of the holder 32 to form four first branch units 324. The position unit 324 is used to clamp and fix the fixing frame 32 and the elastic piece 5〇~^. In this embodiment, the first positioning unit 324 is a positioning post. The Tianran's far-clamping unit 324 may also be a positioning hole, and the number of the first predetermined ^324 may also be two, three or more. 201008088 The holder 32 may also have no coil 42 of the outer wall of the second positioning unit 41 of the first positioning unit. The live "3 === = lens barrel in the lens module (not shown). The second housing: =; = extending in the direction of the central axis of the movable cylinder 41 to form eight second movements 41 In the second positioning post 413, four are evenly distributed in the living = two = and ^ can be understood 'the second positioning post 413 can also be separately molded and bonded, screwed and other fixing methods are fixed to the movable loading cylinder 41 As shown in Fig. 2, the elastic piece 50 has a square flat plate 51. The flat plate 51 has a hole 51 to the through hole 510, so that light can pass through the flat plate 51 and have a frame 52 away from the through hole 510. An inner frame 53 adjacent to the through hole training and four elastic portions 54 symmetrically distributed around the through hole training center and located between the outer frame 52 and the inner frame 53. The outer frame 52 is sequentially connected a square structure of the first side 521, the second side 522, the third side 523, and the fourth side 524. The first side 52! is parallel to the third side 523, and the second side is cut. The fourth side 524 is parallel. The outer frame 52 has four outer connecting portions 525, 526, 527 and 528 respectively connected to one end of the four elastic portions 54. The outer connecting portion 525 is adjacent to the outer connecting portion 526 and adjacent to the outer connecting portion 528 and opposed to the outer connecting portion 527. The connecting line between the outer connecting portion 525 and the outer connecting portion 526 has a vertical line X and an outer connecting portion 525. The vertical line Y between the line connecting the outer connecting portion 528 divides the flat plate 51 into a first area 61, a second area 62, a third area 63, and a fourth area 64. The first area 61 and the first area The second region 62 is adjacent to the third region 63 and adjacent to the fourth region 64. The outer frame 52 further has four positioning holes 529 for use with the first positioning unit 324. The positioning hole 529 The elastic piece 50 and the fixing frame 32 are positioned and fixed in cooperation with the first positioning unit 324. In order to make the fixing to the fixing frame 32, the positioning hole 529 and the first positioning unit 324 can be dispensed. 53 is provided with four notches 531 which are open toward the through hole 510 and communicate with the through hole 510. The notch 531 cooperates with the second positioning post 413 to position and fix the elastic piece 50 and the movable charging cylinder 41. The cartridge 41 is fixed more firmly, and can also be used in the recess 531 and the second positioning post. The notch 531 may be a through hole that does not communicate with the through hole 510. The elastic portion 54 has a bent portion 541 located in the first region 61 of the flat plate 51, and the same The curved portion 541 is opposite to the curved portion 542 and an extending portion 543 between the bent portion 541 and the curved portion 542. The bent portion 541 has a starting portion 5411 and two circumferential directions along the through hole 510. An extended first extension section 5412, a second extension section 5413, and an arcuate folded-back section 11 201008088 5415 between the first extension section 5412 and the second extension section 5413. Wherein the length of the first elongate section 5412 is less than the length of the second elongate section 5413. The starting section 5411 is parallel to the radial direction of the through hole 510, and has one end connected to the outer connecting portion 525 and the other end connected to one end of the first elongated section 5412. The other end of the first elongate section 5412 is coupled to one end of the folded-back section 5415. The other end of the folded-back section 5415 is connected to one end of the second elongated section 5413 such that the first elongated section 5412, the folded-back section 5415 and the second elongated section 5413 form a U-shaped opening with an opening direction toward the first side 521. © Construction. In this embodiment, the first elongated section 5412 and the second elongated section 5413 are both linear structures. Of course, the first elongate section 5412 and the second elongate section 5413 can also be curved. The extending portion 543 has an inner side 5431 adjacent to the through hole 510 and a side edge 5433 away from the through hole 510 and parallel to the inner side 5413, and the outer side 5433 is parallel to the first side 521. One end of the extending portion 543 is connected to the other end of the second elongated portion 5413, and the other end is connected to the end of the curved portion 542 away from the inner frame 53, that is, the extending portion 543 spans the mid-vertical line Y. The curved portion 542 is located in the second region 62 of the flat plate 51, and its end portion away from the extending portion 543 is connected to the inner frame 53. Of course, the voice coil motor 10 can also have only one elastic piece 50. The elastic portion 54 has a bent portion 541 located in the first region 61 of the flat plate 51, an arcuate portion 542 opposite to the bent portion 541, and a curved portion 541 and the curved portion 542. The extension portion 543, the bending portion 12201008088 portion 541, the extending portion 543, and the curved portion 542 reduce the degree of stress concentration of the elastic piece 50 in the lateral direction, thereby making the elastic side of the elastic piece more adjustable. (4) The voice coil motor 1Q of the shrapnel 50 is more shock-resistant, so that the loop motor 10 has a longer service life. • The coil 42 is connected to an external circuit such that a current flows in the coil 42 and the current-carrying coil 42 is subjected to a force in the magnetic field generated by the fixed assembly 30 to cause the movable cartridge 41 to move along its central axis. When the coil U has a current flowing, the elastic restoring force in the 'spring 5' drives the 〇 = back to the initial position, and the elastic piece 5 〇 can be lateral to the voice coil motor 1 : the ring = the sound is the sound The ring motor 10 provides a cushioning force to protect the θ circle up to 10, resulting in a longer service life. The spray ring 3' is the voice coil motor of the second embodiment of the present invention (the unbounced piece 50a is substantially the same as the shrapnel, and has a plate %, = plate, and a geometric hole has a through hole 51〇a, The flat plate & further has a frame 52a that is retracted from the through hole, a frame 53a adjacent to the through hole pool, and four symmetry distributions around the center of the through hole 5, and located in the frame 2 and the inner frame 53a Between the elastic portion %, the outer frame 仏 has a square structure of the first side 521a, the second side 5, the third side 523a ^ four (four) 524a of the connection ‘the outer frame 仏 also has four respectively The ends of the f elastic portions 543 are connected to the outer side connecting portions 525a, 526a, 527a, and 5, and the outer connecting portions are connected to the outer connecting portion 525a and the outer connecting portion 525a. The vertical line Y1 of the connection between the parts is divided into a first region 61a, a region 62a, a third region 63a, and a fourth region (4). The elastic portion 5 knows that 13 201008088 has an outer connection portion. a bent portion 541a connected to the 525a, an arcuate portion 542a opposite to the bent portion 541a, and a bend at the bend The extending portion 543a between the portion 541a and the curved portion 542a has an inner side 5431a and an outer side 5433a which are parallel to each other, except that the bent portion 541a has a beginning portion 5411a and three a first elongated section 5412a, a second elongated section 5413a and a third elongated section 5414a and two folded-back sections 5415a extending in a circumferential direction of the through hole 510a, wherein a folded-back section 5415a is located at the first elongated section 5412a and the second elongated portion Between segments 5413a, and forming a U-shaped structure with the first elongate segment 5412a and the second elongate segment 5413a, the other retracting segment 5415a is located between the second elongate segment 5413a and the third elongate segment 5414a, and with the second elongation The segment 5413a and the third elongate segment 5414a form a U-shaped structure, the length of the first elongate segment 5412a is less than the length of the second elongate segment 5413a, and the length of the second elongate segment 5413a is less than the length of the third elongate segment 5414a. The end portion of the portion 542a connected to the inner frame 53a is located in the fourth region 64a of the flat plate 51a. The outer side edge 5433a of the extending portion 543a is parallel to the fourth side edge 524a, and the extending portion 543a spans the vertical line XI. See Figure 4, which is this issue. The elastic piece 50b of the voice coil motor (not shown) of the third embodiment. The elastic piece 50b has a flat plate 51b. The geometric center of the flat plate 51b defines a through hole 510b. The flat plate 51b further has a distance away from the through hole 510b. The frame 52b has an inner frame 53b adjacent to the through hole 510b and four elastic portions 54b symmetrically distributed around the center of the through hole 510b and located between the outer frame 52b and the inner frame 53b. The outer frame 52b has a circular shape and has four outer connecting portions 525b, 526b, 527b and 528b which are respectively connected to one end of the four elastic portions 54b. 14 201008088 Here, the outer connecting portion 525b is adjacent to the outer connecting portion 526b, adjacent to the outer connecting portion 528b, and facing the outer connecting portion 527b. The vertical line Y2 between the outer connecting portion 525b and the outer connecting portion 526b and the vertical line Y2 between the outer connecting portion 525b and the outer connecting portion 528b divide the flat plate 51b into the first region 61b, The second region 62b, the third region 63b, and the fourth region 64b. The first region 61b is adjacent to the second region 62b, opposed to the third region 63b, and adjacent to the fourth region 64b. The elastic portion 54b has a bent portion 541b located in the first region 61b of the flat plate 51b, an arcuate portion 542b opposite to the bent portion 541b, and a curved portion 541b and an arcuate portion 542b. The extension portion 543b. The extension portion 543b has an inner side edge 5431b and a side edge 5433b parallel to the inner side edge 5431b, and the extension portion 543b is parallel to a side edge of the outer frame 52b corresponding thereto. One end of the bent portion 541b is connected to the outer connecting portion 525b, and the other end is connected to one end of the extending portion 543b, and the angle between the starting portion 5411b of the bent portion 541b and the radial direction of the through hole 510b is 30 degrees. The other end of the extending portion 543b is connected to one end of the curved portion 542b, and the other end of the curved portion 542b is connected to the inner frame 53b, that is, the extending portion 543b spans the vertical line X2. Of course, the angle between the beginning portion 5411b of the bent portion 541b and the radial direction of the through hole 510b may be other degrees such as 20 degrees or 10 degrees, and should be set according to actual conditions. Of course, the number of extensions can also be four or five or more, 15 201008088 should be designed according to actual needs. Shapes and other knots Of course, the shape of the outer frame may also be a pentagon or a hexagonal geometry. 〇 〇 〇 专利 专利 专利 专利 专利 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝 丝Those who are familiar with the case should be included; the equivalent modifications or changes made in the spirit are called the patents of Yingying and His Majesty. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a first embodiment of the motor of the present invention having a spring piece. FIG. 2 is a schematic view of a shrapnel of a voice coil motor in a first embodiment of the present invention. FIG. 2 is a schematic view of a shrapnel of a voice coil motor in a second embodiment of the present invention. Description of the shrapnel of the voice coil motor in the third embodiment of the present invention 10 30 40 50 > 50a ' 50b 32 [Key element symbol description] Voice coil motor fixed assembly movable assembly group spring holder magnet 34 16 321 201008088 First Locating cavity edge first positioning unit movable loading tube
W 線圈 第二容置腔 第二定位柱 平板 ❹ 通孔 外框 内框 彈力部 第一側邊 第二側邊 第三侧邊 0 第四側邊 外側連接部 第一區域 第二區域 第三區域 第四區域 定位孔 323 324 41 42 412 413 51 、 51a 、 51b 510、510a、510b 52、52a、52b 53 > 53a ' 53b 54、54a、54b 521 ' 521a 522、522a 523 、 523a 524、524a 525 、 526 、 527 、 528 、 525a、526a、527a、528a、 525b、526b、527b、528b 61、61a、61b 62 、 62a 、 62b 63 、 63a ' 63b 64 、 64a ' 64b 529 17 201008088 凹口 531 彎折部 541 ^ 541a、541b 弧形部 542、 542a、542b 延伸部 • 543、 543a 、 543b 開始段 5411 、5411a 、 5411b 第一伸長段 5412 、5412a 第二伸長段 5413 、5413a 折返段 5415 、5415a ❹ 内侧邊 5431 、5431a、5431b 外側邊 5433 、5433a、5433b 第三伸長段 5414aW coil second accommodating cavity second positioning column plate ❹ through hole outer frame inner frame elastic portion first side second side third side 0 fourth side outer connecting portion first region second region third region Fourth area positioning hole 323 324 41 42 412 413 51 , 51a , 51b 510 , 510a , 510b 52 , 52a , 52b 53 > 53a ' 53b 54 , 54a , 54b 521 ' 521a 522 , 522a 523 , 523a 524 , 524a 525 , 526 , 527 , 528 , 525a , 526a , 527a , 528a , 525b , 526b , 527b , 528b 61 , 61a , 61b 62 , 62a , 62b 63 , 63a ' 63b 64 , 64a ' 64b 529 17 201008088 notch 531 bending 541 ^ 541a, 541b curved portions 542, 542a, 542b extensions 543, 543a, 543b starting segments 5411, 5411a, 5411b first elongated segments 5412, 5412a second elongated segments 5413, 5413a folded segments 5415, 5415a 内侧 inner Side 5431, 5431a, 5431b outer side 5433, 5433a, 5433b third extension 5414a
1818