200944929 九、發明說明· 【發明所，技術領域】 頭驅動裝置。於攝像技術領域’具體而言有關於一種鏡 【先前技術】 隨著科學技術的發展 ❹ Φ 機、手機攝像機或金兄項驅動裝置已應用到數位相 動階段，線圈中通電流後像機等自動對焦系統。鏡頭在啓 動力，使鏡頭立即運動U ，不管電流的大小，都會産生驅 要歸零，回復到初始位置此外，鏡頭調焦過程中，鏡頭需 反向的拉力。因錢_=要魏祕加—個與驅動力 【發明内容】 動裴置需要提供一個預緊模塊。 本發明要解决的技術 能够使鏡頭架與基座之間產。種鏡祕動裝置’ 曼，術叫，本㈣提供—觀頭驅動裝 m動部分㈣定部分，軸部分餅蚊部分内， 運動^滅職’固定部分包祕座，辆架位於基 座上’鏡頭架和基座其巾―遍件上固定有導磁體，另一 組件上固定有磁鐵。 由於鏡頭架和基座其巾—個輯上固定有導磁體，另 一組件上固定有磁鐵，因此，通過導磁體和磁體之間相互 吸引産生的磁力，使基座和鏡頭架之間産生預緊力，從而 實現固定在鏡頭架上的鏡頭在啓動階段，當電流達到一定 的大小後’線圈中的電磁驅動力大於預緊力時才能移動，· 6 200944929 / / ov/pif 而鏡頭調焦回零階段，當線圈中的電磁㈣力小於預緊力 時’預緊力可以拉動鏡頭，使鏡頭回復到初始位置。 . 【實施方式】 爲了使本發明所要解决的技術問題、技術方案及有益 六果更加π楚明白，以下結合附圖及實施例，對本發明進 行進一步詳細說明。應當理解，此處所描述的具體實施例 僅僅用以解釋本發明，並不用於限定本發明。 ❹ 。結合圖1、圖2和圖3，本發明實施例提供的一種鏡頭 驅動裝置1 ’包括運動部分21和固定部分22，運動部分 21位於固定部分22内’運動部分21包括鏡頭架211，固 疋邛分22包括基座223，鏡頭架211位於基座223上，鏡 頭架211和基座223其中一個組件上固定有導磁體^，另 一組件上固定有磁體12。 導磁鐵11可以是鐵塊或鐵球，磁體丨2可以是磁柱， 至少兩對鐵塊或鐵球和磁柱均勻布置在鏡頭架211和基座 223上。作爲本發明的較佳實施例，鏡頭架的底部對 稱设置有兩個凹槽Πΐ，該導磁鐵η爲鐵球，其固定在凹 槽111内。基座223上與鏡頭架211上凹槽111相對的位 置’也相應對稱設置有兩個通孔121，該磁體12爲磁柱， 其固定在通孔121内。 • 基座223和鏡頭架211上分別固定導磁體11和磁體 12 ’通過導磁體π和磁體12之間相互吸引産生的磁力， 使基座223和鏡頭架211之間産生預緊力，從而實現固定 在鏡頭架211上的鏡頭213在啓動階段，當電流達到一定 7 200944929 的大小後，線圈中的電磁驅動力大於預緊力時，才能移動； 而鏡頭213調焦回零階段’當線圈中的電磁驅動力小於預 緊力日^ ’預緊力可以拉動鏡頭，使鏡頭213回復到初始位 置。 導磁體11和磁體12還可以是呈環形或其他形狀，導 磁體11和磁體12的數量無論多少’只要分別固定在鏡頭 架211和基座223中的一個組件上，使導磁體u與磁體 ❹200944929 IX. INSTRUCTIONS · [Invention, Technical Field] Head drive device. In the field of camera technology, there is a specific mirror [previous technology] With the development of science and technology, Φ machine, mobile phone camera or Jinxiong item drive device has been applied to the digital phase, the current in the coil, the camera, etc. Autofocus system. When the lens is powered, the lens moves U immediately. Regardless of the current, it will drive back to zero and return to the initial position. In addition, during the lens focusing process, the lens needs a reverse pulling force. Because of the money _= to Wei Wei plus - and the driving force [Invention content] The dynamic device needs to provide a pre-tightening module. The technique to be solved by the present invention enables the production of the lens holder and the base. The kind of mirror secret device 'Man, the technique is called, this (4) provides - the head drive to install the m moving part (four) fixed part, the shaft part of the cake mosquito part, the movement ^ destroy the 'fixed part of the bag seat, the frame is located on the base 'The lens holder and the base are provided with a magnetizer on the towel--one member, and a magnet is fixed on the other component. Since the lens holder and the base have a magnet to which the magnet is fixed, and the other component is fixed with a magnet, the magnetic force generated by the mutual attraction between the magnet and the magnet causes a pre-prediction between the base and the lens frame. Tightening force, so that the lens fixed on the lens frame can be moved when the current reaches a certain level, and the electromagnetic driving force in the coil is greater than the pre-tightening force. 6 200944929 / / ov/pif and the lens is adjusted In the zero return phase, when the electromagnetic (four) force in the coil is less than the pre-tightening force, the pre-tightening force can pull the lens to return the lens to the initial position. [Embodiment] In order to make the technical problems, technical solutions, and benefits of the present invention more comprehensible, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Oh. 1 , 2 and 3, a lens driving device 1' according to an embodiment of the present invention includes a moving portion 21 and a fixed portion 22, and the moving portion 21 is located in the fixed portion 22. The moving portion 21 includes a lens frame 211, which is fixed. The split 22 includes a base 223, and the lens mount 211 is located on the base 223. One of the lens mount 211 and the base 223 is fixed with a magnetizer ^, and the other assembly is fixed with a magnet 12. The magnets 11 may be iron or iron balls, the magnets 2 may be magnetic columns, and at least two pairs of iron or iron balls and magnetic columns are evenly arranged on the lens frame 211 and the base 223. As a preferred embodiment of the present invention, the bottom of the lens holder is symmetrically provided with two recesses Πΐ, which are iron balls which are fixed in the recess 111. The position θ of the base 223 opposite to the groove 111 on the lens frame 211 is also symmetrically disposed with two through holes 121. The magnet 12 is a magnetic column which is fixed in the through hole 121. • The base 223 and the lens frame 211 respectively fix the magnetic force generated by the magnetizer 11 and the magnet 12' by attracting each other between the magnetizer π and the magnet 12, so that a pre-tightening force is generated between the base 223 and the lens frame 211, thereby realizing The lens 213 fixed on the lens frame 211 can be moved when the current reaches a certain value of 7 200944929, and the electromagnetic driving force in the coil is greater than the pre-tightening force; and the lens 213 is adjusted to return to the zero phase 'in the coil The electromagnetic driving force is less than the pre-tightening force day. 'The pre-tightening force can pull the lens to return the lens 213 to the initial position. The magnetizer 11 and the magnet 12 may also be in a ring shape or other shape, and the number of the magnets 11 and the magnets 12 may be fixed to one of the lens holder 211 and the base 223, respectively, so that the magnetizer u and the magnet ❹
12間能够産生預緊力，均在本發明的保護範圍之内。 ^如圖1和圖3所示，運動部分21還包括線圈212和鐵 環214 ’線圈212固定在鏡頭架211上。固定部分22包括 磁組221和鐵殼222’鐵殼222包括外圈2221和由外圈頂 ^向内彎折延伸的輛部2222，輛部助上設有與鏡頭架 211相對應的通孔’磁組221固定在鐵殼222外圈的内侧， ，環2H貼靠在鏡頭架211上，且與鐵殼222 #輛部之間 存在間隙’鐵環2U與鐵殼222共同組成勵磁組件。 擦，定部分22運動時，爲了减小摩 “有門隙’而鐵产214 1之間、磁鐵221和線圈212之間 留有間隙而鐵3衣214與鏡頭架21!緊 因此鐵環214與鏡頭架222之間’、、夂/又有間隙， 動裝置2的體積縮小 的間隙可以使鏡頭驅 線圈212除了與鏡頭架211固 … 214固定連接，這樣，鐵環214位於铲 還可以與鐵環 之間，進一步消除了線圈212與鐵兄’ 211和線圈212 鏡頭驅動裝置1的體積可以進一步减】11之間的間隙，使 8 200944929 zi /βυριτ 如圖4所示，鏡頭驅動裝置1還包括上彈箬片232和 下，簧片233,上彈黄片232和下彈簧片233的内圈分別 與線圈212的兩端引線連接，上彈簧片232和下 ％ 的外圈上都有接觸片234’上彈簧片232和簧 通過接觸片234與基座223連接。當給上彈簧片说和下 彈簧片233通電時’電流會通過兩彈簧片的外圈導入内圈 中，從而給線圈212通電，起到導線的作用。此 圈2i2通電帶動鏡_ 211運動時，兩彈菩片况 發生變形，産生彈力，線圈212中的電磁力和兩彈菁片 232、233産生的彈力平衡時，運動部分21將停止，因此 該裝置可以通過控制電流大小，來控制運動部分21的位 移。 磁組211的個數可以有若干個或是磁組2η呈環形， 鐵殼222周向可以呈圓形、長方形或其他形狀，鐵殼222 =部的__可从方形或其他祕容_環^的= 狀。 φ =上所祕爲本發_健實闕而已，並不用 制本發明，凡在本發明的# ^ 改、等同替換和改之内所作的任何修 内。 > 句應包含在本發明的保護範圍之 【圖式簡單說明】 在圖通過在詳細示範實施射描述，本發明的上 這些附圖中：‘“對於本領域技術人胃將更為顯見，在 9 200944929 圖1是本發明實施例提供的鏡頭驅動裝置結構分解示 意圖。 圖2是本發明實施例提供的鏡頭驅動裝置的俯視示意 圖。 圖3是本發明實施例提供的鏡頭驅動裝置沿圖2中 A-A線的剖視示意圖。 圖4是本發明實施例提供的鏡頭驅動裝置運動部分立 體示意圖。 【主要元件符號說明】 1 : 鏡頭驅動裝置 11 ： 導磁體 12 ： 磁體 21 ： 運動部分 22 ： 固定部分 111 凹槽 121 ： 通孔 φ 211 鏡頭架 212 線圈 213 鏡頭 - 214 ML· 鐵％ 221 ： 磁組 — 222 鐵殼 223 232 基座 上彈簧片 10 200944929 ///5upir 233 ： 下彈簧片 234 ： 接觸片 2222 ： 輛部 2221 ： 外圈 A-A ： 剖視線The 12 pre-tightening forces are all within the scope of the present invention. As shown in Figs. 1 and 3, the moving portion 21 further includes a coil 212 and an iron ring 214' coil 212 fixed to the lens frame 211. The fixing portion 22 includes a magnetic group 221 and an iron casing 222'. The iron casing 222 includes an outer ring 2221 and a vehicle portion 2222 extending inwardly from the outer ring top. The vehicle portion is provided with a through hole corresponding to the lens frame 211. The magnetic group 221 is fixed on the inner side of the outer ring of the iron shell 222, and the ring 2H abuts against the lens frame 211, and there is a gap between the iron shell 222 and the vehicle portion. The iron ring 2U and the iron shell 222 together constitute an exciting component. . When the fixed portion 22 is moved, in order to reduce the "gate gap", there is a gap between the iron 214 1 and between the magnet 221 and the coil 212, and the iron 3 214 and the lens frame 21 are tight! Therefore, the iron ring 214 There is a gap between the lens frame 222 and the lens frame 222. The gap of the moving device 2 is reduced. The lens drive coil 212 can be fixedly connected to the lens frame 211, so that the iron ring 214 can be located in the shovel. Between the iron rings, the gap between the coil 212 and the iron brother '211 and the coil 212 lens driving device 1 can be further reduced by 11, so that 8 200944929 zi /βυριτ as shown in FIG. 4, the lens driving device 1 The upper cymbal 232 and the lower reed 233 are further included, and the inner rings of the upper yoke 232 and the lower spring 233 are respectively connected to the two ends of the coil 212, and the upper spring 232 and the lower outer ring are in contact with each other. The spring piece 232 and the spring on the piece 234' are connected to the base 223 through the contact piece 234. When the upper spring piece is said to be energized with the lower spring piece 233, 'current will be introduced into the inner ring through the outer ring of the two spring pieces, thereby giving the coil 212 power, play the role of the wire. This ring 2i2 power When the mirror _ 211 is moved, the two bullets are deformed to generate elastic force. When the electromagnetic force in the coil 212 and the elastic force generated by the two elastic crystal pieces 232 and 233 are balanced, the moving portion 21 will stop, so the device can be controlled. The magnitude of the current is used to control the displacement of the moving portion 21. The number of the magnetic group 211 may be several or the magnetic group 2n may be annular, and the iron shell 222 may have a circular, rectangular or other shape in the circumferential direction, and the iron shell 222 = part __ can be from the square or other secrets _ ring ^ = shape. φ = on the secret of the hair _ health 阙 only, do not use the invention, where the # ^ change, equivalent replacement and change in the invention The following is a description of the present invention. The human stomach will be more apparent. At 9 200944929, FIG. 1 is a schematic exploded view showing the structure of a lens driving device according to an embodiment of the present invention. Fig. 2 is a top plan view of a lens driving device according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of the lens driving device according to the embodiment of the present invention taken along line A-A of FIG. 2. 4 is a schematic perspective view of a moving portion of a lens driving device according to an embodiment of the present invention. [Main component symbol description] 1 : Lens drive unit 11 : Magnetizer 12 : Magnet 21 : Moving part 22 : Fixed part 111 Groove 121 : Through hole φ 211 Lens mount 212 Coil 213 Lens - 214 ML · Iron % 221 : Magnetic Group — 222 Iron shell 223 232 Base spring plate 10 200944929 ///5upir 233 : Lower spring piece 234 : Contact piece 2222 : Car section 2221 : Outer ring AA : Section line
1111