WO2013104163A1 - Voice coil motor - Google Patents
Voice coil motor Download PDFInfo
- Publication number
- WO2013104163A1 WO2013104163A1 PCT/CN2012/074943 CN2012074943W WO2013104163A1 WO 2013104163 A1 WO2013104163 A1 WO 2013104163A1 CN 2012074943 W CN2012074943 W CN 2012074943W WO 2013104163 A1 WO2013104163 A1 WO 2013104163A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lens carrier
- elastic piece
- magnets
- voice coil
- coil motor
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
Definitions
- the present invention relates to a voice coil motor, and more particularly to a voice coil motor applied to a camera, a video camera or a mobile phone having a camera function to drive the lens to move to adjust the focal length.
- the voice coil motor has a structure in which a plurality of permanent magnets are used to form a magnet assembly, and a gap is left between the permanent magnets, and the assembly manner is mainly through a reserved position in the casing and by gluing. Fixed.
- the assembly operation is required to be high and cumbersome, and the fixing effect is still unsatisfactory.
- the impact resistance needs to be improved, especially the impact force transmitted from the outer peripheral side wall of the casing often leads to The magnet assembly is displaced, and this displacement causes the repulsive force between the magnets to no longer balance, thereby further increasing the eccentricity of the lens carrier, resulting in greater control errors and even scrapping it.
- a technical solution for achieving the object of the present invention is: a voice coil motor comprising a base, a lower elastic piece, a lens carrier, a magnetic conductive ring, a magnet assembly, a coil, a resilient piece and an upper cover; the base and the upper cover constitute an internal capacity a housing of the chamber; the upper elastic piece and the lower elastic piece are located in the accommodating cavity, the lens carrier is disposed between the upper elastic piece and the lower elastic piece; the coil is fixedly disposed on the outer circumference of the lens carrier; and the magnet assembly is disposed on the coil Upper, the magnet assembly includes a plurality of magnets disposed on an outer circumference of the lens carrier, and a gap is left between two adjacent magnets; the magnetic flux ring includes an annular base and a plurality of positions protruding upward from a top end of the annular base The annular base is disposed under each of the magnets and between the coil and the lens carrier, and the positioning portion is located in the gap between the adjacent two magnets and is clamped by the two magnet
- the outer wall of the lens carrier is provided with a positioning boss protruding in the radial direction, and the coil is placed on the positioning boss.
- the coil is disposed adjacent to the outer wall of the lens carrier.
- the positioning portion of the magnetic flux ring extends obliquely upward and in a direction away from the central axis of the lens carrier.
- an upper elastic piece bracket is disposed between the upper elastic piece and the upper cover, and the upper elastic piece bracket is provided with an inner hole corresponding to the outer peripheral shape of the upper elastic piece, and the upper elastic piece is located at the inner hole of the upper elastic piece bracket.
- the upper cover is a magnetizer made of a magnetic conductive material.
- one end of each magnet adjacent to the outer wall of the lens carrier has a concentric arc shape, and the other end edges are linear.
- the invention provides a plurality of protruding positioning portions at the top end of the annular base of the magnetic flux ring, and at the same time, the positioning portion is disposed in the gap between the adjacent two magnets, and is clamped by the two magnets;
- the use of such a structure to position a plurality of separate magnets makes the installation operation of the magnet assembly more simplified, and the positioning is more stable and precise; in addition, since the positioning portion is fixed by a plurality of magnets and pressed against each other, the motor as a whole When the outer wall, especially the side wall of the upper cover, is subjected to an impact force, the magnets are not displaced under the fixing action of the magnetic conductive ring, thereby effectively improving the impact resistance.
- Figure 1 is a schematic perspective view of the present invention
- Figure 2 is a perspective view of the voice coil motor of Figure 1 when viewed from another angle;
- Figure 3 is a cross-sectional view of the voice coil motor of Figure 1;
- Figure 4 is an exploded view of the voice coil motor of Figure 1.
- the drawings are labeled as: base 1, lower elastic piece 2, lens carrier 3, positioning boss 31, magnetic flux ring 4, annular base portion 41, positioning portion 42, magnet assembly 5, magnet 51, gap 52, coil 6,
- the upper elastic piece 7, the upper cover 8, the upper elastic piece bracket 9, and the inner hole 91 accommodate the cavity 100.
- FIG. 1 is a schematic perspective view of the present invention
- FIG. 2 is a perspective view of the voice coil motor of FIG. 1 when viewed from another angle
- 3 is a cross-sectional view of the voice coil motor shown in FIG. 1
- FIG. 4 is an exploded view of the voice coil motor shown in FIG. 1.
- the present embodiment is a voice coil motor, as shown in FIGS. 1 to 4, including a base 1, a lower elastic piece 2, a lens carrier 3, a magnetic conductive ring 4, a magnet assembly 5, a coil 6, a spring elastic piece 7, and an upper cover 8;
- the base 1 and the upper cover 8 form a housing with a receiving cavity 100;
- the upper elastic piece 7 and the lower elastic piece 2 are located in the accommodating cavity 100, and the lens carrier 3 is disposed on the upper elastic piece 7 and the lower elastic piece 2
- the coil 6 is fixedly disposed on the outer circumference of the lens carrier 3;
- the magnet assembly 5 is disposed above the coil 6, and the magnet assembly 5 includes four magnets 51 arranged in an annular shape disposed on the outer periphery of the lens carrier 3, adjacent A gap 52 is left between the two magnets 51;
- the magnetic flux ring 4 includes an annular base portion 41 and four positioning portions 42 projecting upward from the top end of the annular base portion 41, and an annular base portion 41 is disposed under each of the magnet
- the lens carrier 3 has a tubular shape and is made of a resinous material.
- the outer wall is provided with a positioning boss 31 which protrudes in the radial direction.
- the bottom end of the coil 6 is placed on the positioning boss 31.
- the coil 6 is a cylindrical shape formed by hot pressing after winding, is disposed adjacent to the outer wall of the lens carrier 3, and is fixed to the outer wall of the lens carrier 3 by glue bonding.
- the positioning portion 42 of the magnetic flux ring 4 extends obliquely upward and in a direction away from the central axis of the lens carrier 3.
- An upper elastic piece bracket 9 is disposed between the upper elastic piece 7 and the upper cover 8, and the upper elastic piece bracket 9 is provided with an inner hole 91 corresponding to the outer peripheral shape of the upper elastic piece 7, and the upper elastic piece 7 is located on the upper elastic piece bracket 9 In the inner hole 91.
- the upper cover 8 is a magnetizer made of a magnetically permeable material, for example, made of a material such as iron, cobalt, nickel, or an alloy thereof.
- Each of the magnets 51 is made of a permanent magnet material, and one end adjacent to the outer wall of the lens carrier 3 has a concentric arc shape, and the other end edges are linear.
- the positioning portion is disposed in the gap between the adjacent two magnets, and is clamped by the two magnets.
- the installation operation of the magnet assembly is simplified, the positioning is more stable and precise; in addition, since the positioning portion is fixed by the four magnets and pressed against each other, the motor When the outer outer wall, especially the side wall of the upper cover, is subjected to an impact force, the magnets are not displaced under the fixing action of the magnetic conductive ring, thereby effectively improving the impact resistance.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Lens Barrels (AREA)
Abstract
A voice coil motor comprising a base (1), a lower flexible piece (2), a lens carrier (3), a magnetic ring (4), a magnet component (5), a coil (6), an upper flexible piece (7), and a cover (8). The base (1) and the cover (8) constitute a housing provided therein with an accommodation cavity (100). The upper flexible piece (7) and the lower flexible piece (2) are arranged within the accommodation cavity (100). The lens carrier (3) is arranged between the upper flexible piece (7) and the lower flexible piece (2). The coil (6) is fixedly arranged around the periphery of the lens carrier (3). The magnet component (5) is arranged above the coil (6). The magnet component (5) comprises multiple magnets (51) arranged around the periphery of the lens carrier (3). Every two adjacent magnets (51) are provided therebetween with a gap (52). The magnetic ring (4) comprises an annular base part (41) and multiple positioning parts protruding upwards from the top-end of the annular base part (41). The annular base part (41) is arranged below the magnets (51) and between the coil (6) and the lens carrier (3). The positioning parts (42) respectively are arranged in the gaps (52) between every two adjacent magnets (51) and are clamped by the two magnets (51). The present invention allows for further simplification of an installation operation for the magnet component, for further stabilized and precise positioning, and additionally, for improved shock resistance.
Description
本发明涉及一种音圈马达，具体来说是一种应用于照相机、摄像机或具有拍照功能的手机等设备上以驱动镜头移动从而调节焦距的音圈马达。
The present invention relates to a voice coil motor, and more particularly to a voice coil motor applied to a camera, a video camera or a mobile phone having a camera function to drive the lens to move to adjust the focal length.
目前的音圈马达，其结构多采用分体的多个永磁体组成磁石组件，各永磁体之间留有间隙，其装配方式主要通过在壳体中预留容置位置并通过胶粘等方式加以固定 。
At present, the voice coil motor has a structure in which a plurality of permanent magnets are used to form a magnet assembly, and a gap is left between the permanent magnets, and the assembly manner is mainly through a reserved position in the casing and by gluing. Fixed.
由于所需装配精度较高，对其装配操作要求较高并较为繁琐，且其固定效果仍不慎理想，抗冲击能力有待提高，尤其是从壳体外周侧壁传来的冲击力，常会导致磁石组件发生移位，而这种移位又使得各磁石之间的斥力不再平衡，从而进一步增大透镜载体的偏心程度，导致更大的控制误差，甚至使其报废。
Due to the high assembly precision required, the assembly operation is required to be high and cumbersome, and the fixing effect is still unsatisfactory. The impact resistance needs to be improved, especially the impact force transmitted from the outer peripheral side wall of the casing often leads to The magnet assembly is displaced, and this displacement causes the repulsive force between the magnets to no longer balance, thereby further increasing the eccentricity of the lens carrier, resulting in greater control errors and even scrapping it.
本发明的目的是提供一种结构较为合理，有效保证磁石组件的稳固性，从而提高抗冲击性能的音圈马达。SUMMARY OF THE INVENTION It is an object of the present invention to provide a voice coil motor which is relatively reasonable in structure and which effectively ensures the stability of the magnet assembly and thereby improves the impact resistance.
实现本发明目的的技术方案是：一种音圈马达，包括底座、下弹片、透镜载体、导磁环、磁石组件、线圈、上弹片和上盖；所述底座和上盖组成一个内设容置腔的壳体；所述上弹片和下弹片位于容置腔中，所述透镜载体设置在上弹片和下弹片之间；所述线圈固定设置在透镜载体外周；所述磁石组件设置在线圈上方，所述磁石组件包括设置在透镜载体外周的多个磁石，相邻两个磁石之间留有间隙；所述导磁环包括环状基部和从环状基部顶端向上凸出的多个定位部，其环状基部设置在各磁石下方、并位于线圈与透镜载体之间，其定位部位于相邻的两个磁石之间的间隙中、并被该两个磁石所夹紧。A technical solution for achieving the object of the present invention is: a voice coil motor comprising a base, a lower elastic piece, a lens carrier, a magnetic conductive ring, a magnet assembly, a coil, a resilient piece and an upper cover; the base and the upper cover constitute an internal capacity a housing of the chamber; the upper elastic piece and the lower elastic piece are located in the accommodating cavity, the lens carrier is disposed between the upper elastic piece and the lower elastic piece; the coil is fixedly disposed on the outer circumference of the lens carrier; and the magnet assembly is disposed on the coil Upper, the magnet assembly includes a plurality of magnets disposed on an outer circumference of the lens carrier, and a gap is left between two adjacent magnets; the magnetic flux ring includes an annular base and a plurality of positions protruding upward from a top end of the annular base The annular base is disposed under each of the magnets and between the coil and the lens carrier, and the positioning portion is located in the gap between the adjacent two magnets and is clamped by the two magnets.
上述技术方案中，所述透镜载体外壁设有沿径向凸出的定位凸台，所述线圈置放于该定位凸台上。In the above technical solution, the outer wall of the lens carrier is provided with a positioning boss protruding in the radial direction, and the coil is placed on the positioning boss.
上述技术方案中，所述线圈邻接透镜载体外壁设置。In the above technical solution, the coil is disposed adjacent to the outer wall of the lens carrier.
上述技术方案中，所述导磁环的定位部向上并朝着远离透镜载体中轴线的方向倾斜延伸。In the above technical solution, the positioning portion of the magnetic flux ring extends obliquely upward and in a direction away from the central axis of the lens carrier.
上述技术方案中，所述上弹片与上盖之间设有上弹片支架，所述上弹片支架上设有与上弹片外周形状相一致的内孔，所述上弹片位于上弹片支架的内孔中。In the above technical solution, an upper elastic piece bracket is disposed between the upper elastic piece and the upper cover, and the upper elastic piece bracket is provided with an inner hole corresponding to the outer peripheral shape of the upper elastic piece, and the upper elastic piece is located at the inner hole of the upper elastic piece bracket. in.
上述技术方案中，所述上盖是由导磁材料制成的导磁体。In the above technical solution, the upper cover is a magnetizer made of a magnetic conductive material.
上述技术方案中，各磁石与透镜载体外壁邻接的一端为同心的圆弧状，其余各端边缘为直线状。In the above technical solution, one end of each magnet adjacent to the outer wall of the lens carrier has a concentric arc shape, and the other end edges are linear.
本发明通过在导磁环的环状基部的顶端设置凸出的多个定位部，同时把定位部设置在相邻的两个磁石之间的间隙中，并被该两个磁石所夹紧；利用这种结构对多个分体的磁石进行定位，使得磁石组件的安装操作更为简化，定位也更加稳固精确；此外，由于定位部被多个磁石共同固定，相互抵压，所以当马达整体外壁尤其是上盖侧壁受到冲击力时，在导磁环的固定作用下，各磁石也不会移位，有效提高了抗冲击能力。
The invention provides a plurality of protruding positioning portions at the top end of the annular base of the magnetic flux ring, and at the same time, the positioning portion is disposed in the gap between the adjacent two magnets, and is clamped by the two magnets; The use of such a structure to position a plurality of separate magnets makes the installation operation of the magnet assembly more simplified, and the positioning is more stable and precise; in addition, since the positioning portion is fixed by a plurality of magnets and pressed against each other, the motor as a whole When the outer wall, especially the side wall of the upper cover, is subjected to an impact force, the magnets are not displaced under the fixing action of the magnetic conductive ring, thereby effectively improving the impact resistance.
图1为本发明的一种立体结构示意图；Figure 1 is a schematic perspective view of the present invention;
图2为图1所示音圈马达从另一角度观察时的一种立体结构示意图；Figure 2 is a perspective view of the voice coil motor of Figure 1 when viewed from another angle;
图3为图1所示音圈马达的一种剖视图；Figure 3 is a cross-sectional view of the voice coil motor of Figure 1;
图4为图1所示音圈马达的一种***图。Figure 4 is an exploded view of the voice coil motor of Figure 1.
附图所示标记为:底座1，下弹片2，透镜载体3，定位凸台31，导磁环4，环状基部41，定位部42，磁石组件5，磁石51，间隙52，线圈6，上弹片7，上盖8，上弹片支架9，内孔91，容置腔100。The drawings are labeled as: base 1, lower elastic piece 2, lens carrier 3, positioning boss 31, magnetic flux ring 4, annular base portion 41, positioning portion 42, magnet assembly 5, magnet 51, gap 52, coil 6, The upper elastic piece 7, the upper cover 8, the upper elastic piece bracket 9, and the inner hole 91 accommodate the cavity 100.
图1至图4显示了本发明的第一种具体实施方式，其中图1为本发明的一种立体结构示意图；图2为图1所示音圈马达从另一角度观察时的一种立体结构示意图；图3为图1所示音圈马达的一种剖视图；图4为图1所示音圈马达的一种***图。1 to 4 show a first embodiment of the present invention, wherein FIG. 1 is a schematic perspective view of the present invention; FIG. 2 is a perspective view of the voice coil motor of FIG. 1 when viewed from another angle. 3 is a cross-sectional view of the voice coil motor shown in FIG. 1; and FIG. 4 is an exploded view of the voice coil motor shown in FIG. 1.
本实施例是一种音圈马达，见图1至图4，包括底座1、下弹片2、透镜载体3、导磁环4、磁石组件5、线圈6、上弹片7和上盖8；所述底座1和上盖8组成一个内设容置腔100的壳体；所述上弹片7和下弹片2位于容置腔100中，所述透镜载体3设置在上弹片7和下弹片2之间；所述线圈6固定设置在透镜载体3外周；所述磁石组件5设置在线圈6上方，所述磁石组件5包括设置在透镜载体3外周的四个呈环状排列的磁石51，相邻两个磁石51之间留有间隙52；所述导磁环4包括环状基部41和从环状基部41顶端向上凸出的四个定位部42，其环状基部41设置在各磁石51下方、并位于线圈6与透镜载体3之间，其定位部42位于相邻的两个磁石51之间的间隙52中、并被该两个磁石51所夹紧。The present embodiment is a voice coil motor, as shown in FIGS. 1 to 4, including a base 1, a lower elastic piece 2, a lens carrier 3, a magnetic conductive ring 4, a magnet assembly 5, a coil 6, a spring elastic piece 7, and an upper cover 8; The base 1 and the upper cover 8 form a housing with a receiving cavity 100; the upper elastic piece 7 and the lower elastic piece 2 are located in the accommodating cavity 100, and the lens carrier 3 is disposed on the upper elastic piece 7 and the lower elastic piece 2 The coil 6 is fixedly disposed on the outer circumference of the lens carrier 3; the magnet assembly 5 is disposed above the coil 6, and the magnet assembly 5 includes four magnets 51 arranged in an annular shape disposed on the outer periphery of the lens carrier 3, adjacent A gap 52 is left between the two magnets 51; the magnetic flux ring 4 includes an annular base portion 41 and four positioning portions 42 projecting upward from the top end of the annular base portion 41, and an annular base portion 41 is disposed under each of the magnets 51. And located between the coil 6 and the lens carrier 3, the positioning portion 42 is located in the gap 52 between the adjacent two magnets 51, and is clamped by the two magnets 51.
所述透镜载体3的基本形状为管状，采用树脂性材料制成，其外壁设有沿径向凸出的定位凸台31，所述线圈6的底端置放于该定位凸台31上。The lens carrier 3 has a tubular shape and is made of a resinous material. The outer wall is provided with a positioning boss 31 which protrudes in the radial direction. The bottom end of the coil 6 is placed on the positioning boss 31.
所述线圈6是才绕线后通过热压形成的圆筒形状，邻接透镜载体3外壁设置，并通过胶水粘结固定在透镜载体3的外壁上。The coil 6 is a cylindrical shape formed by hot pressing after winding, is disposed adjacent to the outer wall of the lens carrier 3, and is fixed to the outer wall of the lens carrier 3 by glue bonding.
所述导磁环4的定位部42向上并朝着远离透镜载体3中轴线的方向倾斜延伸。The positioning portion 42 of the magnetic flux ring 4 extends obliquely upward and in a direction away from the central axis of the lens carrier 3.
所述上弹片7与上盖8之间设有上弹片支架9，所述上弹片支架9上设有与上弹片7外周形状相一致的内孔91，所述上弹片7位于上弹片支架9的内孔91中。An upper elastic piece bracket 9 is disposed between the upper elastic piece 7 and the upper cover 8, and the upper elastic piece bracket 9 is provided with an inner hole 91 corresponding to the outer peripheral shape of the upper elastic piece 7, and the upper elastic piece 7 is located on the upper elastic piece bracket 9 In the inner hole 91.
所述上盖8是由导磁材料制成的导磁体，例如以铁、钴、镍及其合金等材料制成。The upper cover 8 is a magnetizer made of a magnetically permeable material, for example, made of a material such as iron, cobalt, nickel, or an alloy thereof.
各磁石51采用永磁材料制成，其与透镜载体3外壁邻接的一端为同心的圆弧状，其余各端边缘为直线状。Each of the magnets 51 is made of a permanent magnet material, and one end adjacent to the outer wall of the lens carrier 3 has a concentric arc shape, and the other end edges are linear.
本实施例通过在导磁环的环状基部的顶端设置凸出的四个定位部，同时把定位部设置在相邻的两个磁石之间的间隙中，并被该两个磁石所夹紧；利用这种结构对四个分体的磁石进行定位，使得磁石组件的安装操作更为简化，定位也更加稳固精确；此外，由于定位部被四个磁石共同固定，相互抵压，所以当马达整体外壁尤其是上盖侧壁受到冲击力时，在导磁环的固定作用下，各磁石也不会移位，有效提高了抗冲击能力。In this embodiment, by arranging four protruding positioning portions at the top end of the annular base portion of the magnetic flux ring, the positioning portion is disposed in the gap between the adjacent two magnets, and is clamped by the two magnets. Using this structure to position the four separate magnets, the installation operation of the magnet assembly is simplified, the positioning is more stable and precise; in addition, since the positioning portion is fixed by the four magnets and pressed against each other, the motor When the outer outer wall, especially the side wall of the upper cover, is subjected to an impact force, the magnets are not displaced under the fixing action of the magnetic conductive ring, thereby effectively improving the impact resistance.
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而这些属于本发明的实质精神所引伸出的显而易见的变化或变动仍属于本发明的保护范围。It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Obvious changes or variations that come within the spirit of the invention are still within the scope of the invention.
Claims (7)
- 一种音圈马达，包括底座（1）、下弹片（2）、透镜载体（3）、导磁环（4）、磁石组件（5）、线圈（6）、上弹片（7）和上盖（8）；所述底座（1）和上盖（8）组成一个内设容置腔（100）的壳体；所述上弹片（7）和下弹片（2）位于容置腔（100）中，所述透镜载体（3）设置在上弹片（7）和下弹片（2）之间；所述线圈（6）固定设置在透镜载体（3）外周；其特征在于：所述磁石组件（5）设置在线圈（6）上方，所述磁石组件（5）包括设置在透镜载体（3）外周的多个磁石（51），相邻两个磁石（51）之间留有间隙（52）；所述导磁环（4）包括环状基部（41）和从环状基部（41）顶端向上凸出的多个定位部（42），其环状基部（41）设置在各磁石（51）下方、并位于线圈（6）与透镜载体（3）之间，其定位部（42）位于相邻的两个磁石（51）之间的间隙（52）中、并被该两个磁石（51）所夹紧。 A voice coil motor comprising a base (1), a lower elastic piece (2), a lens carrier (3), a magnetic conductive ring (4), a magnet assembly (5), a coil (6), a spring piece (7) and an upper cover (8); the base (1) and the upper cover (8) constitute a housing with a receiving cavity (100); the upper elastic piece (7) and the lower elastic piece (2) are located in the receiving cavity (100) The lens carrier (3) is disposed between the upper elastic piece (7) and the lower elastic piece (2); the coil (6) is fixedly disposed on the outer periphery of the lens carrier (3); characterized in that: the magnet assembly ( 5) disposed above the coil (6), the magnet assembly (5) comprising a plurality of magnets (51) disposed on the outer circumference of the lens carrier (3), leaving a gap (52) between two adjacent magnets (51) The magnetic conductive ring (4) includes an annular base portion (41) and a plurality of positioning portions (42) projecting upward from a top end of the annular base portion (41), the annular base portion (41) being disposed on each of the magnets (51) ) is located below and between the coil (6) and the lens carrier (3), and its positioning portion (42) is located in the gap between the adjacent two magnets (51) (5) 2) Medium and clamped by the two magnets (51).
- 根据权利要求1所述的音圈马达，其特征在于：所述透镜载体（3）外壁设有沿径向凸出的定位凸台（31），所述线圈（6）置放于该定位凸台（31）上。The voice coil motor according to claim 1, characterized in that: the outer wall of the lens carrier (3) is provided with a positioning boss (31) protruding in the radial direction, and the coil (6) is placed on the positioning convex On the platform (31).
- 根据权利要求1所述的音圈马达，其特征在于：所述线圈（6）邻接透镜载体（3）外壁设置。A voice coil motor according to claim 1, characterized in that said coil (6) is arranged adjacent to the outer wall of the lens carrier (3).
- 根据权利要求1所述的音圈马达，其特征在于：所述导磁环（4）的定位部（42）向上并朝着远离透镜载体（3）中轴线的方向倾斜延伸。A voice coil motor according to claim 1, characterized in that the positioning portion (42) of the magnetic conductive ring (4) extends obliquely upward and in a direction away from the central axis of the lens carrier (3).
- 根据权利要求1所述的音圈马达，其特征在于：所述上弹片（7）与上盖（8）之间设有上弹片支架（9），所述上弹片支架（9）上设有与上弹片（7）外周形状相一致的内孔（91），所述上弹片（7）位于上弹片支架（9）的内孔（91）中。The voice coil motor according to claim 1, wherein an upper elastic piece bracket (9) is disposed between the upper elastic piece (7) and the upper cover (8), and the upper elastic piece bracket (9) is provided An inner hole (91) conforming to the outer peripheral shape of the upper elastic piece (7), and the upper elastic piece (7) is located in the inner hole (91) of the upper elastic piece holder (9).
- 根据权利要求1所述的音圈马达，其特征在于：所述上盖（8）是由导磁材料制成的导磁体。A voice coil motor according to claim 1, wherein said upper cover (8) is a magnetizer made of a magnetically permeable material.
- 根据权利要求1所述的音圈马达，其特征在于：各磁石（51）与透镜载体（3）外壁邻接的一端为同心的圆弧状，其余各端边缘为直线状。The voice coil motor according to claim 1, wherein one end of each of the magnets (51) adjacent to the outer wall of the lens carrier (3) has a concentric arc shape, and the other end edges are linear.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100041873A CN102710091A (en) | 2012-01-09 | 2012-01-09 | Voice coil motor |
| CN201210004187.3 | 2012-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013104163A1 true WO2013104163A1 (en) | 2013-07-18 |
Family
ID=46902700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/074943 WO2013104163A1 (en) | 2012-01-09 | 2012-04-28 | Voice coil motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102710091A (en) |
| WO (1) | WO2013104163A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070091199A1 (en) * | 2005-10-21 | 2007-04-26 | Manabu Shiraki | Lens driving apparatus |
| CN101114042A (en) * | 2006-07-26 | 2008-01-30 | 松下电器产业株式会社 | Lens actuator |
| EP1906395A1 (en) * | 2006-09-28 | 2008-04-02 | Mitsumi Electric Co., Ltd. | Camera module |
| CN101231373A (en) * | 2007-04-27 | 2008-07-30 | 金仁召 | Lens drive unit |
| CN101656457A (en) * | 2008-08-20 | 2010-02-24 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| CN201523305U (en) * | 2009-09-18 | 2010-07-07 | 亚洲光学股份有限公司 | Voice coil motor capable of preventing spring plate from being deformed |
| CN102263472A (en) * | 2010-05-31 | 2011-11-30 | Lg伊诺特有限公司 | Voice coil motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202713110U (en) * | 2012-01-09 | 2013-01-30 | 金龙机电股份有限公司 | Voice-coil motor |
-
2012
- 2012-01-09 CN CN2012100041873A patent/CN102710091A/en active Pending
- 2012-04-28 WO PCT/CN2012/074943 patent/WO2013104163A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070091199A1 (en) * | 2005-10-21 | 2007-04-26 | Manabu Shiraki | Lens driving apparatus |
| CN101114042A (en) * | 2006-07-26 | 2008-01-30 | 松下电器产业株式会社 | Lens actuator |
| EP1906395A1 (en) * | 2006-09-28 | 2008-04-02 | Mitsumi Electric Co., Ltd. | Camera module |
| CN101231373A (en) * | 2007-04-27 | 2008-07-30 | 金仁召 | Lens drive unit |
| CN101656457A (en) * | 2008-08-20 | 2010-02-24 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| CN201523305U (en) * | 2009-09-18 | 2010-07-07 | 亚洲光学股份有限公司 | Voice coil motor capable of preventing spring plate from being deformed |
| CN102263472A (en) * | 2010-05-31 | 2011-11-30 | Lg伊诺特有限公司 | Voice coil motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102710091A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6667403B2 (en) | Vibration motor | |
| US10622877B2 (en) | Linear vibration generator | |
| CN103516119B (en) | Linear vibration electric motor | |
| US9025796B2 (en) | Vibration generator | |
| US9030058B2 (en) | Vibration generator | |
| US20110309691A1 (en) | Linear vibrator and electronic device having the same | |
| JP2006251728A (en) | Actuator for automatic focusing | |
| JP2008112003A (en) | Lens actuator | |
| TWM325524U (en) | Improvement of driving and positing assignment for focusing actuator | |
| JP2009033864A (en) | Vibration generator | |
| CN105744447A (en) | Speaker and vibration control unit | |
| CN111130254A (en) | Electric machine | |
| JP2009251474A (en) | Lens unit and imaging apparatus | |
| TW200807860A (en) | Actuator | |
| CN215420039U (en) | Vibration exciter and electronic device | |
| WO2013104163A1 (en) | Voice coil motor | |
| JP3182689U (en) | Lens drive device | |
| JP2006186517A (en) | Speaker | |
| JP2003251278A (en) | Multifunction vibration actuator | |
| JP2011022366A (en) | Lens driving device | |
| JP7366585B2 (en) | linear motor | |
| CN112701743B (en) | Magnetic attraction mechanism and wireless charging seat | |
| US7791827B2 (en) | Miniature actuator and optical apparatus | |
| CN209170185U (en) | A kind of Hall built-in type direct current permanent magnetic brushless for medical class | |
| CN103052014A (en) | Embedded bone conduction receiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12864849 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 12864849 Country of ref document: EP Kind code of ref document: A1 |