200944930τ 九、發明說明： 【發明所屬之技術領域】 尤其涉及一種鏡頭驅動裝 本發明屬於攝像技術領域 置。 【先前技術】 隨著科技的不斷發展，翁200944930τ IX. Description of the invention: [Technical field to which the invention pertains] In particular, the invention relates to a lens driving device. [Prior Art] With the continuous development of technology, Weng
❹ 機攝像機或數碼攝像機等產品領，碼相機、手 高，在保證高晝質的影像同時，對&隹聚焦的要求越來越 要求也越來越嚴格，變焦、平 ，、、、、聚焦裝置的體積 發展。 Α…裝置正在朝著微型化方向 兄在市场上鏡頭驅動裝置如 1包括鏡頭架η、鐵殼12、 厅不，鏡頭驅動裝置 固定在鏡職η上，並與鏡頭線圈14 賴殼12呈一圓環狀的爲運動部分。 内的内圈以及連接於外圈頂 二、，外圈、位於外圈 鐵13固定在鐵殼12外圈的内表面，鐵殼in 圈Η與鏡頭架η之間。當線圈14==_圈位於線 12和磁鐵13運動時，@ 見碩木11相對鐵殼 内圈之間、鏡頭架_和鐵殼12 間隙’這樣就限制了鏡頭驅動内圈之間必、須保證一定的 【發明内容】 勒裝置的體積不能進一步縮小。 驅動裝ί月要解決的技術問題是提供—種體積較小的鏡頭 爲瞭解決上述技術問題，本發明提供—種鏡頭驅動裝 6Products such as camera or digital video camera, code camera and hand height, while ensuring high-quality images, the requirements for & focus are increasingly demanding and stricter, zoom, flat,,,,, The volume of the focusing device develops. Α...The device is moving toward miniaturization. In the market, the lens driving device, such as 1 includes the lens frame η, the iron case 12, and the hall. The lens driving device is fixed on the mirror η and is rounded with the lens coil 14 The ring is the moving part. The inner ring and the outer ring are connected to the top of the outer ring. The outer ring and the outer ring iron 13 are fixed on the inner surface of the outer ring of the iron shell 12, and the iron shell is between the ring and the lens frame η. When the coil 14==_circle is in the movement of the line 12 and the magnet 13, @ see the gap between the old wood 11 and the inner ring of the iron shell, the gap between the lens frame _ and the iron shell 12, which limits the between the lens driving inner ring, It must be ensured that the content of the device cannot be further reduced. The technical problem to be solved by the driver is to provide a lens with a smaller volume. In order to solve the above technical problem, the present invention provides a lens driving device.
200944930 z/ /oipn 置，包括運動部分和園定部分，運動部分位於固定部分内， 且固定部分和運動部分之間有間隙。運動部分包括線圈和 鏡頭架，線圈固定在镜頭架上。固定部分包括磁鐵和鐵殼， 鐵殼包括外圈和由外圈頂端向内彎折延伸的輛部，輛部上 設有與鏡頭架相對應的通孔，磁鐵固定在鐵殼外圈的内 側。運動部分還包括鐵環，鐵環貼靠在鏡頭架的外侧，鐵 環與鐵殼共同組成勵磁組件。 鏡頭架與鐵環、線圈固定連接作爲運動部分，鐵殼與 磁鐵固定連接作爲固定部分，固定部分和運動部分之間有 間隙，其中鐵環與鐵殼組成一個整體成爲勵磁組件。當鏡 頭運動部相對固定部分運動時’爲了減小摩擦'鐵殼和鐵 環之間、磁鐵和線圈之間留有間隙，而鐵環與鏡頭架緊貼 固定沒有_。因此鐵環與鏡頭架之間減小的_可以使 鏡頭驅動裝置的體積縮小。 【實施方式】 爲了使本發明的所要解決的技術問題、技術方案及有 益效果更加清楚明白，以下結合關及實施例，對 進行進-步詳細制。應當轉，此處所贿的具體實施 例僅僅用以解釋本發明，並不用於限定本發明。 、 結合圖2、圖3和圖4,本發明實施例鏡頭驅 包括運動部分21和岐部分22，運動部分21位於固 分22内，且運動部分21和固定部分22之間有間隙 部分21包括鏡頭架2U、線圈212、鐵環214和鏡頭動 鏡頭2U固定在鏡頭架2心，鐵環214和線圈212都與 7200944930 z / /oipn, including the moving part and the gardening part, the moving part is located in the fixed part, and there is a gap between the fixed part and the moving part. The moving part includes a coil and a lens holder, and the coil is fixed to the lens frame. The fixing portion comprises a magnet and an iron shell, and the iron shell comprises an outer ring and a vehicle portion bent inwardly from the top end of the outer ring, the vehicle portion is provided with a through hole corresponding to the lens frame, and the magnet is fixed on the inner side of the outer ring of the iron shell . The moving part also includes a hoop, which rests on the outside of the lens frame, and the iron ring and the iron case together form an excitation component. The lens frame is fixedly connected with the iron ring and the coil as a moving part, and the iron shell and the magnet are fixedly connected as a fixed part, and there is a gap between the fixed part and the moving part, wherein the iron ring and the iron shell are integrally formed as an excitation component. When the moving portion of the lens moves relative to the fixed portion, in order to reduce the friction, there is a gap between the iron shell and the iron ring, and between the magnet and the coil, and the iron ring is tightly attached to the lens frame without _. Therefore, the reduced _ between the hoop and the lens frame can reduce the size of the lens drive. [Embodiment] In order to clarify the technical problems, technical solutions, and advantageous effects of the present invention, the following detailed description will be made in conjunction with the embodiments. The specific embodiments of the present invention are intended to be illustrative only and not to limit the invention. 2, 3 and 4, the lens drive of the embodiment of the present invention includes a moving portion 21 and a weir portion 22, the moving portion 21 is located in the solid portion 22, and the gap portion 21 is included between the moving portion 21 and the fixed portion 22. The lens frame 2U, the coil 212, the iron ring 214 and the lens moving lens 2U are fixed to the center of the lens frame 2, and the iron ring 214 and the coil 212 are both 7
I 200944930 鏡頭71? 211貼养連接’且鐵環2]4位於線圈和鏡頭架 211之間固疋。卩分22包括磁鐵221和鐵殼222，鐵殼222 ' &括外圈和由外圈頂端向内彎折延伸_部，輛部上設有 -'、鏡頭#211相對應的通孔，磁鐵221 m定在鐵殼222外 圈的内側，且鐵環214與鐵殼222共同址成勵磁組件。 鏡碩架211與鐵環214、線圈212固定連接作爲運動 部分21，鐵殼222與磁鐵221固定連接作爲固定部分22， 其中鐵環214與鐵殼222組成-個整體成爲勵磁組件。當 運動部分21相對固定部分22運動時，爲了減小摩擦，鐵 殼222和鐵環214之間、磁鐵221和線圈212之間留有間 而鐵環214與鏡頭架211f貼固定沒有間隙，因此鐵 % 214與鏡頭架222之間減小的間隙可以使鏡頭驅動裝置 2的體積縮小。 如圖4所示，本發明實施例中，線圈212除了與鏡頭 架211固定連接，還可以與鐵環214貼靠連接這樣，鐵 環214位於鏡頭架211和線圈212之間，進一步消除了線 Ο 圈212與鐵環214之間的間隙，使鏡頭驅動裝置2的體積 可以進一步減小。 本發明中鐵殼222周向可以呈圓形、長方形或其他形 狀’鐵叙222頂部的圓形孔還可以是方形或其他能夠容納 - 鐵環212的形狀。鐵環212的橫截面還可以呈方形戋其它 - 能夠容納鏡頭架211的形狀。 '、 如圖2和圖5所示，鏡頭驅動裝置2還白枯茸# 上彈菁片232和下彈簧片233，上彈簧片 8 200944930. z / /Oipil 233的内圈分別與線圈212的兩端引線連接，上彈黃片232 和下彈簧片233的外圈上都有接觸片234，上彈簧片232 和下彈簧片233通過接觸片234與基座231連接。當給上 • 彈簧片232和下彈簧片233通電時，電流會通過兩彈簧片 232、233的外圈導入内圈中，從而給線圈212通電，起到 導線的作用。此外，當線圈212通電帶動鏡頭架211運動 時，兩彈簧片232、233發生變形，産生彈力，線圈212 ❹ 中的電磁力和兩彈簧片232、233産生的彈力平衡時，運動I 200944930 Lens 71? 211 affixing connection' and hoop 2]4 is located between the coil and the lens frame 211. The split 22 includes a magnet 221 and an iron shell 222. The iron shell 222 ' & includes an outer ring and an inwardly bent portion extending from the top end of the outer ring. The vehicle portion is provided with a through hole corresponding to -' and lens #211. The magnet 221 m is positioned inside the outer ring of the iron shell 222, and the iron ring 214 and the iron shell 222 are co-located as an excitation component. The mirror frame 211 is fixedly coupled to the iron ring 214 and the coil 212 as a moving portion 21, and the iron shell 222 is fixedly coupled to the magnet 221 as a fixed portion 22, wherein the iron ring 214 and the iron shell 222 are integrally formed as an excitation component. When the moving portion 21 moves relative to the fixed portion 22, in order to reduce the friction, a space is left between the iron shell 222 and the iron ring 214, between the magnet 221 and the coil 212, and the iron ring 214 is fixed to the lens frame 211f without a gap, so The reduced clearance between the iron % 214 and the lens frame 222 can reduce the volume of the lens driving device 2. As shown in FIG. 4, in the embodiment of the present invention, the coil 212 is fixedly connected to the lens frame 211, and can also be connected to the iron ring 214. The iron ring 214 is located between the lens frame 211 and the coil 212, thereby further eliminating the line. The gap between the ring 212 and the iron ring 214 allows the volume of the lens driving device 2 to be further reduced. In the present invention, the iron shell 222 may have a circular, rectangular or other shape in the circumferential direction. The circular hole at the top of the iron 222 may also be square or other shape capable of accommodating the iron ring 212. The cross section of the hoop 212 may also be square 戋 other - capable of accommodating the shape of the lens frame 211. As shown in FIG. 2 and FIG. 5, the lens driving device 2 is also white velvet #Upper 243 and lower spring 233, upper spring 8 200944930. z / /Oipil 233 inner ring and coil 212 respectively The lead wires are connected at both ends, and the outer ring of the upper spring piece 232 and the lower spring piece 233 are provided with contact pieces 234, and the upper spring piece 232 and the lower spring piece 233 are connected to the base 231 through the contact piece 234. When the upper leaf spring 232 and the lower spring piece 233 are energized, current is introduced into the inner ring through the outer rings of the two spring pieces 232, 233, thereby energizing the coil 212 to function as a wire. In addition, when the coil 212 is energized to drive the lens frame 211 to move, the two spring pieces 232, 233 are deformed to generate an elastic force, and the electromagnetic force in the coil 212 ❹ and the elastic force generated by the two spring pieces 232, 233 are balanced.
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。 I 如圖2所示，鏡頭驅動裝置2的基座231上有凸起 241，鏡頭架211上有凹槽242,凸起241和凹槽242相匹 配，且可以在鏡頭架基座231和鏡頭架211上均布設置， 本實施例中對稱設置有兩對凸起241和凹槽242，也可以 有其他的佈置方式。通過凸起241和凹槽242相對滑動匹 配，可以防止鏡頭架211轉動，並防止鏡頭架211傾斜。 ©鐵殼222的上表面與上彈簧片232之間有上絕緣片 252，鐵殼222的下表面與下彈簧片233之間有下絕緣片 251，上絕緣片252和下絕緣片251可以防止當上彈簧片 232和下彈簧片233通電時，鐵殼222與兩彈箬片232、233 接觸導電。 ~ 作爲本發明的較佳實施例，鏡頭驅動裝置2中固定部 分22有4個磁鐵221 ’鐵殼222的截面呈倒直角的方形， 4個磁鐵221分別固定在方形鐵殼222的4個導角位置。 9The portion 21 will stop, so the device can control the displacement of the moving portion 21 by controlling the magnitude of the current. As shown in FIG. 2, the base 231 of the lens driving device 2 has a protrusion 241, and the lens frame 211 has a groove 242, and the protrusion 241 and the groove 242 are matched, and can be mounted on the lens frame base 231 and the lens. The frame 211 is evenly arranged. In this embodiment, two pairs of protrusions 241 and grooves 242 are symmetrically disposed, and other arrangements are also possible. By the relative sliding of the projection 241 and the recess 242, the lens frame 211 can be prevented from rotating and the lens frame 211 can be prevented from tilting. The upper surface of the iron shell 222 and the upper spring piece 232 have an upper insulating sheet 252. The lower surface of the iron shell 222 and the lower spring piece 233 have a lower insulating sheet 251. The upper insulating sheet 252 and the lower insulating sheet 251 can be prevented. When the upper spring piece 232 and the lower spring piece 233 are energized, the iron case 222 is in contact with the two elastic pieces 232, 233 to conduct electricity. As a preferred embodiment of the present invention, the fixing portion 22 of the lens driving device 2 has four magnets 221 'the iron shell 222 has a square shape with a right angle in section, and the four magnets 221 are respectively fixed to the four guides of the square iron shell 222. Corner position. 9
Ο 200944930 磁鐵221的個數可以有若干個或是磁鐵221呈環形， 磁鐵221㈣殼222㈤置也可以有其他佈置方<，只要 使鏡頭架211與鐵殼222之間的間隙減小，都在本發 保護範圍之内。 "的 以上所述僅爲本發明的較佳實施例而已，並不用以限 制本，明，凡在本發_精神和原則之⑽作的任何^ 改等同替換和改進等，均應包含在本發明的保 内。 叫〜 【圖式簡單說明】 圖圖1是現有技術提供的鏡頭驅動裝置結構剖視示意 意圖圖2疋本發明實施例提供的鏡頭驅動装置結構分解示 圖；圖3疋本發明實施例提供的鏡頭驅動裝置的俯視示意 - ^ λ 疋本發明實施例提供的鏡頭驅動裝置沿圖3中 線的剖視示意圖； 體示^ 5是本發明實施例提供的鏡頭驅動裝置運動部分立 叫、'落圖。 【主要元件符號說明】 ’鏡碩驅動裝置 11 ·鏡頭架 200944930 z / /οιριιΟ 200944930 There may be several magnets 221 or the magnets 221 in a ring shape. The magnets 221 (four) shells 222 (five) may also have other arrangements. As long as the gap between the lens frame 211 and the iron shell 222 is reduced, Within the scope of this protection. The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modifications, improvements, etc., which are made in the present invention, should be included in The warranty of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view of a lens driving device provided by the prior art. FIG. 1 is an exploded perspective view of a lens driving device according to an embodiment of the present invention. FIG. The top view of the lens driving device is a cross-sectional view of the lens driving device according to the embodiment of the present invention. The body is shown in the embodiment of the present invention. Figure. [Main component symbol description] ‘Mirror master drive unit 11 · Lens mount 200944930 z / /οιριι
14 : 線圈 2 ： 鏡頭驅動裝 21 : 運動部分 22 ： 固定部分 211 ： 鏡頭架 212 : 線圈 213 ： 鏡頭 214 ： 鐵環 221 ： 磁鐵 222 ： 鐵殼 231 ： 基座 232 ： 上彈簧片 233 : 下彈簧片 234 ： 接觸片 241 ： 凸起 242 ： 凹槽 251 ： 上絕緣片 252 ： 下絕緣片14 : Coil 2 : Lens drive unit 21 : Moving part 22 : Fixed part 211 : Lens mount 212 : Coil 213 : Lens 214 : Iron ring 221 : Magnet 222 : Iron case 231 : Base 232 : Upper spring piece 233 : Lower spring Sheet 234 : Contact piece 241 : Bump 242 : Groove 251 : Upper insulating sheet 252 : Lower insulating sheet