WO2018227388A1 - 一种五轴音圈马达 - Google Patents

一种五轴音圈马达 Download PDF

Info

Publication number
WO2018227388A1
WO2018227388A1 PCT/CN2017/088088 CN2017088088W WO2018227388A1 WO 2018227388 A1 WO2018227388 A1 WO 2018227388A1 CN 2017088088 W CN2017088088 W CN 2017088088W WO 2018227388 A1 WO2018227388 A1 WO 2018227388A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
carrier
spring
translation
coils
Prior art date
Application number
PCT/CN2017/088088
Other languages
English (en)
French (fr)
Inventor
刘志远
洪航庆
Original Assignee
东莞佩斯讯光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 东莞佩斯讯光电技术有限公司 filed Critical 东莞佩斯讯光电技术有限公司
Priority to PCT/CN2017/088088 priority Critical patent/WO2018227388A1/zh
Publication of WO2018227388A1 publication Critical patent/WO2018227388A1/zh

Links

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
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets

Definitions

  • the invention belongs to the field of image driving equipment, and in particular relates to a five-axis voice coil motor.
  • the current optical anti-shake motor has a complicated structure and cannot simultaneously use two motors with optical anti-shake function on the dual camera, that is, the dual-camera dual optical anti-shake module cannot be realized.
  • the current optical image stabilization motor moves in three dimensions, namely Z-directed autofocus and translation in the X and Y planes or deflection around the X/Y axis.
  • Z-directed autofocus and translation in the X and Y planes or deflection around the X/Y axis when the X, Y plane is translated, since the distribution of the magnetic field is not absolutely uniform, a deflection along the Z axis is generated; the deflection around the X/Y axis also causes deflection along the Z axis.
  • the error in the assembly process of the module also causes the lens to form a certain angle with the image sensor, resulting in the image of the camera module being unclear at the four corners and the edge.
  • the technical problem to be solved by the present invention is to provide a five-axis voice coil motor, which aims to achieve a focus on the lens, anti-shake and optical axis correction functions, reduce production costs, and simplify the processing process.
  • a five-axis voice coil motor including a metal yoke, a plurality of magnets, an upper cover terminal, a lower cover terminal, an upper spring, a lower spring, a first carrier, and a second a carrier and a bracket
  • a circumference of the first carrier is provided with a plurality of first translation coils
  • a circumference of the second carrier is provided with a plurality of second translation coils
  • a circumference of the bracket is wound with a focus coil
  • the focus coil a plane in which the winding is located is perpendicular to a plane in which the windings of the first translational coil and the second translational coil are located, and the number of the first translational coil, the second translational coil, and the magnet is the same
  • the upper spring is disposed at The upper cover is connected to the upper spring, the lower spring is disposed on the lower cover terminal, and the second carrier is coupled to the lower spring, the first carrier and The second carrier is movably embedded
  • the number of the first translation coil, the second translation coil, and the magnet are all four, and the first translation coil and the second translation coil corresponding to the same magnet are aligned in the vertical direction.
  • first translation coils are respectively connected to the upper spring
  • second translation coils are respectively connected to the lower spring
  • the two diagonal coils of the four first translation coils are connected in parallel or in series with each other, and the two diagonal coils of the four second translation coils are connected in parallel or in series with each other, and the four The first translation coil and the coils of the same diagonal position of the four second translation coils are connected in series or in parallel with each other to form a first coil group and a second coil group, and the first coil group is connected to the upper spring, the first The second coil set is coupled to the lower spring.
  • the bracket is a square frame, and the four corners of the square frame are respectively provided with a baffle, and the two ends of the baffle respectively protrude from the top and bottom of the frame to form an upper limit portion and a lower limit portion.
  • the first carrier is movably embedded in a space surrounded by the upper limit portion
  • the second carrier is movably embedded in a space surrounded by the lower limit portion .
  • the first carrier has a first protrusion
  • the first translation coil is disposed on the first protrusion
  • the first carrier is movably embedded on the top of the square frame.
  • the first translation coil is located between two adjacent baffles.
  • the second carrier has a second protrusion
  • the second translation coil is disposed on the second protrusion
  • the second carrier is movably embedded at the bottom of the square frame.
  • the second translation coil is located between two adjacent baffles.
  • the upper spring includes four upper spring independent units including an upper spring inner arm, an intermediate arm and an upper spring outer arm connected to each other, the upper spring inner arm of the four independent units,
  • the intermediate arm and the upper spring outer arm are respectively defined as an upper spring inner ring, an upper spring intermediate ring and an upper spring outer ring, and the upper spring inner ring is fitted and fixed on the upper end of the first carrier, the upper spring intermediate ring A fitting is fixed to an upper end of the bracket, and the upper spring outer ring is fitted and fixed between the upper cover terminal and the top of the magnet.
  • the lower spring comprises eight lower spring independent units
  • the lower spring independent unit comprises a lower spring inner arm and a lower spring outer arm
  • a spring is connected between the lower spring inner arm and the lower spring outer arm
  • the lower inner inner arm, the spring wire and the lower spring outer arm of the eight lower spring independent units are respectively arranged as a lower spring inner ring, a lower spring intermediate ring and a lower spring outer ring, and the lower spring inner ring is fitted
  • the lower spring intermediate ring is fixedly fixed to the lower end of the bracket, and the lower spring outer ring is fitted and fixed between the lower cover terminal and the bottom of the magnet.
  • the bottom of the upper cover terminal has a plurality of pins
  • a top of the lower cover terminal is provided with a plurality of through holes at a position corresponding to the pins, and the upper cover terminal is fastened to the lower cover terminal And the plurality of pins respectively pass through the plurality of through holes.
  • the present invention has the beneficial effects of: a five-axis voice coil motor of the present invention, by fixing a plurality of magnets of the same polarity to the focus coil and the first and second translation coils, so that each block The magnets sequentially correspond to a first translating coil, a focusing coil and a second translating coil from top to bottom.
  • the focus coil When the focus coil is energized, the magnet generates a force parallel to the optical axis to the bracket and the focus coil, so that the bracket moves back and forth along the optical axis direction to achieve autofocus.
  • the magnet When one of the first translational coils on the first carrier is energized, the magnet produces a force that is controllable to the first carrier and the first translational coil perpendicular to the optical axis but of a magnitude and direction, thus, when the first carrier When a plurality of first translational coils are energized simultaneously, a force in any direction perpendicular to the plane of the optical axis can be generated to move the first carrier and the plurality of first translational coils in a plane perpendicular to the optical axis. Similarly, the second carrier and the plurality of second translational coils can also move in a plane perpendicular to the optical axis.
  • the first carrier and the second carrier respectively carry upper and lower ends of the lens, and the first carrier, the second carrier and the bracket are connected together by upper and lower springs.
  • the first and second carriers and the brackets can be moved together in a plane perpendicular to the optical axis to implement an optical anti-shake function.
  • the plurality of first translational coils and the plurality of second translational coils generate forces of different magnitudes or directions
  • the first and second carriers and the brackets can be moved together in a plane perpendicular to the optical axis, and The optical axis deflection can compensate the angle between the lens and the image sensor to realize the function of correcting the optical axis.
  • the moving parts of the motor are the first and second carriers, the bracket and the coil, wherein the first and second carriers,
  • the bracket can be made of plastic, so there is no magnet for the moving parts.
  • the motor carries the two ends of the lens through the two carriers respectively, and the first and second carriers and the bracket are configured in a body structure without interference of motion, and only a few magnets are used through the new magnetic circuit.
  • the coil can realize the focus, anti-shake and optical axis correction functions of the motor, which is not only small in size, low in cost, but also capable of preventing magnetic interference, and the production process is relatively simple, and is suitable for mass production.
  • FIG. 1 is a schematic overall structural view of a five-axis voice coil motor according to an embodiment of the present invention
  • Figure 2 is a schematic exploded view of Figure 1;
  • Figure 3 is a schematic structural view of the bracket of Figure 2;
  • FIG. 4 is a schematic structural view of the first carrier and the first translation coil of FIG. 2;
  • Figure 5 is a schematic structural view of the second carrier and the second translation coil of Figure 2;
  • Figure 6 is a schematic structural view of the upper spring of Figure 2;
  • Figure 7 is a schematic structural view of the lower spring of Figure 2;
  • FIG. 8 is a schematic structural view of the lower cover terminal of FIG. 2.
  • FIG. 8 is a schematic structural view of the lower cover terminal of FIG. 2.
  • a five-axis voice coil motor 100 includes a metal yoke 1, an upper cover terminal 2, a plurality of magnets 3, an upper spring 4, and a first carrier 5.
  • the circumference of the first carrier 5 is evenly distributed with a plurality of first translating coils 51.
  • the periphery of the second carrier 6 is evenly distributed with a plurality of second translating coils 61.
  • the periphery of the bracket 7 is surrounded by a focusing coil 71, and The plane in which the winding of the focus coil 71 is located is perpendicular to the plane in which the windings of the first translation coil 51 and the second translation coil 61 are located.
  • the number of the first translational coils 51, the second translational coils 61, and the magnets 3 are the same. In the embodiment of the present invention, the first translational coils 51, the second translational coils 61, and the magnets 3 are all four, but not Limit the number of coils and magnets.
  • the upper spring 4 is disposed on the upper cover terminal 2, the first carrier 5 is coupled to the upper spring 4; the lower spring 9 is disposed on the lower cover terminal 8, the second carrier 6 It is connected to the lower spring 9.
  • the first carrier 5 and the second carrier 6 are movably embedded at upper and lower ends of the bracket 7, respectively, and the first translation coil 51 and the second translation coil 61 are located on the same straight line.
  • the upper cover terminal 2 is fastened to the lower cover terminal 8.
  • the metal yoke 1 is disposed on the outer side of the upper cover terminal 2 for shielding an external magnetic field and preventing external magnetic interference.
  • the plurality of magnets 3 are fixed between the upper cover terminal 2 and the lower cover terminal 8, so that the moving parts are only coils and plastic parts, thereby avoiding magnetic interference of other motors to the motor.
  • Each of the magnets 3 corresponds to the first translation coil 51, the focus coil 71 and the second translation coil 61 in order from top to bottom, and the plurality of magnets 3 correspond to the first translation coil 51, the focus coil 71 and the second translation.
  • the inner side faces of the coil 61 have the same polarity.
  • the four first translating coils 51 may be respectively connected to the upper spring 4, or the two diagonally opposite first translating coils 51 may be connected in parallel or in series with each other, and then connected to the upper spring 4.
  • the four first translation coils 51 can be independently moved within the magnetic field generated by the magnets 3, respectively.
  • the four second translation coils 61 can also move independently within the magnetic field generated by the magnets 3, so that the movement of the focus coil 71 can achieve five degrees of freedom of the lens (not shown).
  • the two diagonal first translation coils 51 and the second translation coils 61 of the same diagonal position are connected in parallel or in series with each other, only three degrees of freedom of movement of the lens can be achieved by the focus coil 71.
  • the bracket 7 is a square frame, and the four corners of the square frame 7 are respectively provided with a baffle 72, and two ends of the baffle 72 respectively protrude from the top and bottom of the frame 7, forming The upper limit portion and the lower limit portion.
  • the first carrier 5 is movably embedded in a space surrounded by the upper limit portion
  • the second carrier 6 is movably embedded in a space surrounded by the lower limit portion.
  • the first carrier 5 has a first protrusion 52 thereon, the first translation coil 51 is disposed on the first protrusion 52, and the first carrier 5 is movably embedded. Placed on top of the square frame 7, and the first translation coil 51 is located between two adjacent baffles 72.
  • the second carrier 6 has a second protrusion 62 thereon, the second translation coil 61 is disposed on the second protrusion 62, and the second carrier 6 is movably embedded in the square frame 7
  • the bottom of the second translation coil 61 is located between two adjacent baffles 72.
  • the upper spring 4 comprises four upper spring independent units 41.
  • the upper spring independent unit 41 includes an upper spring inner arm 411, an intermediate arm 412 and an upper spring outer arm 413 which are connected to each other, and the upper spring inner arm 411, the middle arm 412 and the upper spring outer arm 413 of the four independent units respectively It is surrounded by an upper inner ring, an upper spring middle ring and an upper spring outer ring.
  • the upper spring inner ring is fixedly fixed to the upper end of the first carrier 5, the upper spring intermediate ring is fixedly fixed to the upper end of the bracket 7, and the upper spring outer ring is fixedly fixed to the upper cover.
  • the terminal 2 is between the top of the magnet 3.
  • the lower spring 9 includes eight lower spring independent units 91, and the lower spring independent unit 91 includes a lower spring inner arm 911 and a lower spring outer arm 912.
  • a spring wire 913 is connected between the lower spring inner arm 911 and the lower spring outer arm 912, and the lower spring inner arm 911, the spring wire 913 and the lower spring outer arm 912 of the eight lower spring independent units are respectively arranged
  • the lower inner ring, the lower middle ring and the lower outer ring are formed.
  • the lower spring inner ring is fixedly fixed to the lower end of the second carrier 6, the lower spring intermediate ring is fixedly fixed to the lower end of the bracket 7, and the lower spring outer ring is fixedly fixed to the lower cover
  • the terminal 8 is between the bottom of the magnet 3.
  • the bottom of the upper cover terminal 2 has a plurality of pins 21
  • a top portion of the lower cover terminal 8 is provided with a plurality of through holes 81 at positions corresponding to the pins 21 .
  • the cover terminal 2 is fastened to the lower cover terminal 8 , and the plurality of pins 21 respectively pass through the plurality of through holes 81
  • the lower cover terminal 8 also has a plurality of pins 82 through the upper and lower terminals Pins 21 and pins 82 can be connected to the respective coils.
  • the upper and lower ends of the lens are respectively carried on the first carrier 5 and the second carrier 6, and the power is turned on by the pins 21 and the pins 82.
  • the focus coil 71 When the focus coil 71 is energized, the magnet 3 generates a force parallel to the optical axis for the bracket 7 and the focus coil 71, and moves the bracket 7 back and forth in the optical axis direction to realize autofocus.
  • the magnet 3 When one of the first translation coils 51 on the first carrier 5 is energized, the magnet 3 produces a force that is controllable to the first carrier 5 and the first translational coil 51 perpendicular to the optical axis but of a magnitude and direction, thus When a plurality of first translation coils 51 on the first carrier 5 are simultaneously energized, a force in any direction perpendicular to the plane of the optical axis may be generated such that the first carrier 5 and the plurality of first translation coils 51 are perpendicular to The in-plane movement of the optical axis. Similarly, the second carrier 6 and the plurality of second translational coils 61 can also move in a plane perpendicular to the optical axis.
  • the first carrier 5, the second carrier 6, and the bracket 7 are coupled together by upper and lower springs. Therefore, when the plurality of first translation coils 51 and the plurality of second translation coils 61 generate the same magnitude and direction of force, the first carrier 5, the second carrier 6, and the bracket 7 can be driven together in a plane perpendicular to the optical axis. Exercise to achieve optical image stabilization.
  • the plurality of first translational coils 51 and the plurality of second translational coils 61 generate forces of different magnitudes or directions
  • the first carrier 5, the second carrier 6, and the bracket 7 can be driven to move together in a plane perpendicular to the optical axis. At the same time, it will also deflect along the optical axis, which can compensate the angle between the lens and the image sensor, and realize the function of optical axis correction.
  • a five-axis voice coil motor 100 carries the two ends of the lens through the first carrier 5 and the second carrier 6, and the first carrier 5,
  • the two carriers 6 and the bracket 7 are in a component structure, and there is no interference of motion.
  • only four magnets can be used with the focus coil and the translation coil to realize the focus, anti-shake and optical axis correction functions of the motor.
  • the volume is small, the cost is low, and the moving parts are the first and second carriers.
  • the bracket and the coil, wherein the first and second carriers and the bracket are made of plastic, so that the moving part has no magnet, thereby avoiding magnetic interference of the other motor in the dual camera module to the motor, and using the metal yoke 1
  • the external magnetic field is shielded to prevent external magnetic interference, and the production process is relatively simple, which is suitable for mass production.

Abstract

一种五轴音圈马达（100），包括金属磁轭（1）、若干个磁铁（3）、上盖端子（2）、下盖端子（8）、上弹簧（4）、下弹簧（9）、第一载体（5）、第二载体（6）以及支架（7），第一载体（5）的周缘均布有若干第一平移线圈（51），第二载体（6）的周缘均布有若干第二平移线圈（61），支架（7）的周缘绕置有对焦线圈（71），上、下弹簧（4、9）分别设置在上、下盖端子（2、8）上，第一、第二载体（5、6）分别与上、下盖端子（2、8）连接，并可移动地嵌置在支架（7）的上下两端，若干磁铁（3）固定在上、下盖端子（2、8）之间，每一块磁铁（3）从上到下依次对应一个第一平移线圈（51）、对焦线圈（71）和一个第二平移线圈（61），且各磁铁（3）的内侧面极性相同。该马达（100）通过全新的磁路实现对焦、防抖和光轴矫正功能，不仅体积小、成本低，而且生产工艺简单。

Description

一种五轴音圈马达 技术领域
本发明属于摄像驱动设备领域，尤其涉及一种五轴音圈马达。
背景技术
手机摄像头像素一直在升级，现已达到2000万像素，功能要求更加多样化。目前，高端手机已经具备了光学防抖的功能，其中市场上的TDK、MITSUMI和ALPS已经生产出带OIS功能的音圈马达。
然而，目前的光学防抖马达由于其本身的设计，结构复杂且不能在双摄像头上同时采用两颗具备光学防抖功能的马达，即不能实现双摄双光学防抖模组。目前的光学防抖马达的运动多为三个维度，分别为Z向的自动对焦和在X、Y平面内的平移或者绕着X/Y轴的偏转。但是，在X、Y平面平移时，由于磁场的分布不是绝对均匀，会产生沿着Z轴的偏转；绕X/Y轴的偏转也会带来沿着Z轴方向的偏转。此外，在模组组装过程中的误差也会引起镜头与图像传感器产生一定的夹角，从而导致摄像头模组的图像在四角及边缘处不清晰。
目前，也有一些能够实现镜头五个自由度的控制的马达，但需要多块不同极性的磁铁，导致马达的制作成本偏高，磁铁与线圈的磁路较为复杂，生产工艺较为繁琐。
 技术问题
本发明所要解决的技术问题为提供一种五轴音圈马达，旨在实现对镜头的对焦、防抖和光轴矫正功能的基础上，降低生产成本，简化加工工艺。
 技术解决方案
为解决上述技术问题，本发明是这样实现的，一种五轴音圈马达，包括金属磁轭、若干个磁铁、上盖端子、下盖端子、上弹簧、下弹簧、第一载体、第二载体以及支架，所述第一载体的周缘设置有若干第一平移线圈，所述第二载体的周缘设置有若干第二平移线圈，所述支架的周缘绕置有对焦线圈，且所述对焦线圈的绕线所在的平面与所述第一平移线圈和第二平移线圈的绕线所在的平面相互垂直，所述第一平移线圈、第二平移线圈以及磁铁的数量相同，所述上弹簧设置在所述上盖端子上，所述第一载体与所述上弹簧连接，所述下弹簧设置在所述下盖端子上，所述第二载体与所述下弹簧连接，所述第一载体和第二载体分别可移动地嵌置在所述支架的上下两端，所述上盖端子扣盖在所述下盖端子上，所述金属磁轭罩设在所述上盖端子外侧，所述若干磁铁固定在所述上盖端子与下盖端子之间，每一块磁铁从上到下依次对应一个第一平移线圈、对焦线圈和一个第二平移线圈，且所述若干磁铁对应所述第一平移线圈、对焦线圈和第二平移线圈的内侧面极性相同。
进一步地，所述第一平移线圈、第二平移线圈以及磁铁的数量均为四个，与同一块磁铁对应的第一平移线圈和第二平移线圈在竖直方向上对齐。
进一步地，所述四个第一平移线圈分别与所述上弹簧连接，所述四个第二平移线圈分别与所述下弹簧连接。
进一步地，所述四个第一平移线圈中对角的两个线圈相互并联或相互串联，所述四个第二平移线圈中对角的两个线圈相互并联或相互串联，且所述四个第一平移线圈与四个第二平移线圈中相同对角位置的线圈相互串联或相互并联形成第一线圈组和第二线圈组，所述第一线圈组与所述上弹簧连接，所述第二线圈组与所述下弹簧连接。
进一步地，所述支架为方形框架，所述方形框架的四角均设有一块挡板，且所述挡板的两端分别凸伸出所述框架的顶部和底部形成上限位部以及下限位部，所述第一载体可移动地嵌置于所述上限位部所围设而成的空间内，所述第二载体可移动地嵌置于所述下限位部所围设而成的空间内。
进一步地，所述第一载体上具有第一凸起，所述第一平移线圈穿设在所述第一凸起上，所述第一载体可移动地嵌置在所述方形框架的顶部，且所述第一平移线圈位于相邻两块挡板之间。
进一步地，所述第二载体上具有第二凸起，所述第二平移线圈穿设在所述第二凸起上，所述第二载体可移动地嵌置在所述方形框架的底部，且所述第二平移线圈位于相邻两块挡板之间。
进一步地，所述上弹簧包括四个上弹簧独立单元，所述上弹簧独立单元包括相互连接的上弹簧内臂、中间臂和上弹簧外臂，所述四个独立单元的上弹簧内臂、中间臂和上弹簧外臂分别围设成上弹簧内圈、上弹簧中间圈以及上弹簧外圈，所述上弹簧内圈贴合固定在所述第一载体的上端，所述上弹簧中间圈贴合固定在所述支架的上端，所述上弹簧外圈贴合固定在所述上盖端子与所述磁铁的顶部之间。
进一步地，所述下弹簧包括八个下弹簧独立单元，所述下弹簧独立单元包括下弹簧内臂和下弹簧外臂，所述下弹簧内臂与所述下弹簧外臂之间连接有弹簧丝，所述八个下弹簧独立单元的下弹簧内臂、弹簧丝和下弹簧外臂分别围设成下弹簧内圈、下弹簧中间圈以及下弹簧外圈，所述下弹簧内圈贴合固定在所述第二载体的下端，所述下弹簧中间圈贴合固定在所述支架的下端，所述下弹簧外圈贴合固定在所述下盖端子与所述磁铁的底部之间。
进一步地，所述上盖端子的底部具有若干插脚，所述下盖端子的顶部与所述插脚相对应的位置处开设有若干通孔，所述上盖端子扣合在所述下盖端子上，且所述若干插脚分别穿过所述若干通孔。
 有益效果
本发明与现有技术相比，有益效果在于：本发明的一种五轴音圈马达，通过将若干个极性相同的磁铁固定在对焦线圈以及第一、第二平移线圈周围，使得每一块磁铁从上到下依次对应一个第一平移线圈、对焦线圈和一个第二平移线圈。当对焦线圈通电时，所述磁铁对支架和对焦线圈产生平行于光轴的作用力，使支架沿光轴方向前后移动，实现自动对焦。当第一载体上的其中一个第一平移线圈通电时，所述磁铁对第一载体和第一平移线圈产生垂直于光轴但大小和方向可控的作用力，因此，当所述第一载体上的若干个第一平移线圈同时通电时，可以产生垂直于光轴的平面内任意方向的力，使第一载体和若干第一平移线圈在垂直于光轴的平面内移动。同理，第二载体和若干第二平移线圈也可以在垂直于光轴的平面内移动。所述第一载体和第二载体分别承载镜头的上端和下端，且所述第一载体、第二载体和支架通过上、下弹簧连接在一起。当所述若干第一平移线圈和若干第二平移线圈产生大小和方向相同的力时，可以带动第一、第二载体以及支架一起在垂直于光轴的平面内运动，实现光学防抖功能。当所述若干第一平移线圈和若干第二平移线圈产生大小或方向不相同的力时，可带动第一、第二载体以及支架一起在垂直于光轴的平面内运动的同时，还会沿着光轴偏转，可以补偿镜头和图像传感器之间的夹角，实现光轴矫正的功能，该马达的运动部件为第一、第二载体、支架以及线圈，其中，第一、第二载体、支架可采用塑料制作，所以，运动部件没有磁铁，在双摄像头模组中不存在马达的磁干扰问题，而且金属磁轭能够屏蔽外界磁场，防止外界的磁干扰。该马达通过两个载体分别承载镜头的两端，并将所述第一、第二载体与支架做成分体式结构，不会产生运动的干扰，而且，通过全新的磁路仅采用很少的磁铁和线圈即可实现马达的对焦、防抖和光轴矫正功能，不仅体积小、成本低，而且能够防止磁干扰，生产工艺较为简单，适于大批量生产。
附图说明
图1是本发明实施例提供的一种五轴音圈马达的整体结构示意图；
图2是图1的分解结构示意图；
图3是图2中支架的结构示意图；
图4是图2中第一载体和第一平移线圈的结构示意图；
图5是图2中第二载体和第二平移线圈的结构示意图；
图6是图2中上弹簧的结构示意图；
图7是图2中下弹簧的结构示意图；
图8是图2中下盖端子的结构示意图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
如图1和图2所示，为本发明实施例提供的一种五轴音圈马达100，其包括金属磁轭1、上盖端子2、若干个磁铁3、上弹簧4、第一载体5、第二载体6、支架7、下盖端子8和下弹簧9。
所述第一载体5的周缘均布有若干第一平移线圈51，所述第二载体6的周缘均布有若干第二平移线圈61，所述支架7的周缘绕置有对焦线圈71，且所述对焦线圈71的绕线所在的平面与所述第一平移线圈51和第二平移线圈61的绕线所在的平面相互垂直。所述第一平移线圈51、第二平移线圈61以及磁铁3的数量相同，在本发明实施例中，所述第一平移线圈51、第二平移线圈61以及磁铁3均为四个，但不限定各线圈及磁铁的数量。
所述上弹簧4设置在所述上盖端子2上，所述第一载体5与所述上弹簧4连接；所述下弹簧9设置在所述下盖端子8上，所述第二载体6与所述下弹簧9连接。所述第一载体5和第二载体6分别可移动地嵌置在所述支架7的上下两端，且所述第一平移线圈51和第二平移线圈61位于同一条直线上。所述上盖端子2扣盖在所述下盖端子8上，所述金属磁轭1罩设在所述上盖端子2的外侧，用于屏蔽外界磁场，防止外界磁干扰。所述若干磁铁3固定在所述上盖端子2与下盖端子8之间，使得运动部件仅为线圈和塑胶件，从而避免了其他马达对本颗马达的磁干扰。每一块磁铁3从上到下依次对应所述第一平移线圈51、对焦线圈71和第二平移线圈61，且所述若干磁铁3对应所述第一平移线圈51、对焦线圈71和第二平移线圈61的内侧面极性相同。
所述四个第一平移线圈51可分别与所述上弹簧4连接，也可对角的两个第一平移线圈51相互并联或相互串联后，再与所述上弹簧4连接。当所述四个第一平移线圈51分别与所述上弹簧4连接时，则所述四个第一平移线圈51可分别在所述磁铁3产生的磁场内独立运动。同理，所述四个第二平移线圈61也可在所述磁铁3产生的磁场内独立运动，从而配合所述对焦线圈71可实现镜头（未图示）五个自由度的运动。而当所述两个对角第一平移线圈51与同一对角位置的第二平移线圈61相互并联或相互串联后，配合所述对焦线圈71只能实现镜头三个自由度的运动。
参照图3，所述支架7为方形框架，所述方形框架7的四角均设有一块挡板72，且所述挡板72的两端分别凸伸出所述框架7的顶部和底部，形成上限位部以及下限位部。所述第一载体5可移动地嵌置于所述上限位部所围设而成的空间内，所述第二载体6可移动地嵌置于所述下限位部所围设而成的空间内。
参照图4和图5，所述第一载体5上具有第一凸起52，所述第一平移线圈51穿设在所述第一凸起52上，所述第一载体5可移动地嵌置在所述方形框架7的顶部，且所述第一平移线圈51位于相邻两块挡板72之间。所述第二载体6上具有第二凸起62，所述第二平移线圈61穿设在所述第二凸起62上，所述第二载体6可移动地嵌置在所述方形框架7的底部，且所述第二平移线圈61位于相邻两块挡板72之间。从而使得所述第一平移线圈51和第二平移线圈61位于同一条直线上，进而与所述磁铁3相对应。
具体连接时，参照图2、图6和图7，所述上弹簧4包括四个上弹簧独立单元41。所述上弹簧独立单元41包括相互连接的上弹簧内臂411、中间臂412和上弹簧外臂413，所述四个独立单元的上弹簧内臂411、中间臂412和上弹簧外臂413分别围设成上弹簧内圈、上弹簧中间圈以及上弹簧外圈。所述上弹簧内圈贴合固定在所述第一载体5的上端，所述上弹簧中间圈贴合固定在所述支架7的上端，所述上弹簧外圈贴合固定在所述上盖端子2与所述磁铁3的顶部之间。
所述下弹簧9包括八个下弹簧独立单元91，所述下弹簧独立单元91包括下弹簧内臂911和下弹簧外臂912。所述下弹簧内臂911与所述下弹簧外臂912之间连接有弹簧丝913，所述八个下弹簧独立单元的下弹簧内臂911、弹簧丝913和下弹簧外臂912分别围设成下弹簧内圈、下弹簧中间圈以及下弹簧外圈。所述下弹簧内圈贴合固定在所述第二载体6的下端，所述下弹簧中间圈贴合固定在所述支架7的下端，所述下弹簧外圈贴合固定在所述下盖端子8与所述磁铁3的底部之间。
同时，参照图2和图8，所述上盖端子2的底部具有若干插脚21，所述下盖端子8的顶部与所述插脚21相对应的位置处开设有若干通孔81，所述上盖端子2扣合在所述下盖端子8上，且所述若干插脚21分别穿过所述若干通孔81，所述下盖端子8上也具有若干插脚82，通过所述上、下端子的插脚21和插脚82可接通各个线圈。
具体工作时，将镜头的上下端分别承载在所述第一载体5和第二载体6上，利用所述插脚21和插脚82接通电源。当所述对焦线圈71通电时，所述磁铁3对支架7和对焦线圈71产生平行于光轴的作用力，使支架7沿光轴方向前后移动，实现自动对焦。当所述第一载体5上的其中一个第一平移线圈51通电时，所述磁铁3对第一载体5和第一平移线圈51产生垂直于光轴但大小和方向可控的作用力，因此，当所述第一载体5上的若干个第一平移线圈51同时通电时，可以产生垂直于光轴的平面内任意方向的力，使第一载体5和若干第一平移线圈51在垂直于光轴的平面内移动。同理，第二载体6和若干第二平移线圈61也可以在垂直于光轴的平面内移动。由于所述第一载体5和第二载体6分别承载镜头的上端和下端，且所述第一载体5、第二载体6和支架7通过上、下弹簧连接在一起。因此，当所述若干第一平移线圈51和若干第二平移线圈61产生大小和方向相同的力时，可以带动第一载体5、第二载体6以及支架7一起在垂直于光轴的平面内运动，实现光学防抖功能。当所述若干第一平移线圈51和若干第二平移线圈61产生大小或方向不相同的力时，可带动第一载体5、第二载体6以及支架7一起在垂直于光轴的平面内运动的同时，还会沿着光轴偏转，可以补偿镜头和图像传感器之间的夹角，实现光轴矫正的功能。
综上所述，本发明实施例提供的一种五轴音圈马达100，其通过所述第一载体5、第二载体6分别承载镜头的两端，并将所述第一载体5、第二载体6与支架7做成分体式结构，不会产生运动的干扰。而且，通过全新的磁路仅采用四块磁铁配合对焦线圈和平移线圈即可实现马达的对焦、防抖和光轴矫正功能，不仅体积小、成本低，而且运动部件为第一、第二载体、支架以及线圈，其中，第一、第二载体、支架可采用塑料制作，所以，运动部件没有磁铁，从而避免了双摄像头模组中的其他马达对本颗马达的磁干扰，并利用金属磁轭1屏蔽外界磁场，防止外界磁干扰，生产工艺较为简单，适于大批量生产。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种五轴音圈马达，其特征在于，包括金属磁轭、若干个磁铁、上盖端子、下盖端子、上弹簧、下弹簧、第一载体、第二载体以及支架，所述第一载体的周缘设置有若干第一平移线圈，所述第二载体的周缘设置有若干第二平移线圈，所述支架的周缘绕置有对焦线圈，且所述对焦线圈的绕线所在的平面与所述防抖线圈的绕线所在的平面相互垂直，所述第一平移线圈、第二平移线圈以及磁铁的数量相同，所述上弹簧设置在所述上盖端子上，所述第一载体与所述上弹簧连接，所述下弹簧设置在所述下盖端子上，所述第二载体与所述下弹簧连接，所述第一载体和第二载体分别可移动地嵌置在所述支架的上下两端，所述上盖端子扣盖在所述下盖端子上，所述金属磁轭罩设在所述上盖端子外侧，所述若干磁铁固定在所述上盖端子与下盖端子之间，每一块磁铁从上到下依次对应一个第一平移线圈、对焦线圈和一个第二平移线圈，且所述若干磁铁对应所述第一平移线圈、对焦线圈和第二平移线圈的内侧面极性相同。
  2. 如权利要求1所述的五轴音圈马达，其特征在于，所述第一平移线圈、第二平移线圈以及磁铁的数量均为四个，与同一块磁铁对应的第一平移线圈和第二平移线圈在竖直方向上对齐。
  3. 如权利要求2所述的五轴音圈马达，其特征在于，所述四个第一平移线圈分别与所述上弹簧连接，所述四个第二平移线圈分别与所述下弹簧连接。
  4. 如权利要求2所述的五轴音圈马达，其特征在于，所述四个第一平移线圈中对角的两个线圈相互并联或相互串联，所述四个第二平移线圈中对角的两个线圈相互并联或相互串联，且所述四个第一平移线圈与四个第二平移线圈中相同对角位置的线圈相互串联或相互并联形成第一线圈组和第二线圈组，所述第一线圈组与所述上弹簧连接，所述第二线圈组与所述下弹簧连接。
  5. 如权利要求2所述的五轴音圈马达，其特征在于，所述支架为方形框架，所述方形框架的四角均设有一块挡板，且所述挡板的两端分别凸伸出所述框架的顶部和底部形成上限位部以及下限位部，所述第一载体可移动地嵌置于所述上限位部所围设而成的空间内，所述第二载体可移动地嵌置于所述下限位部所围设而成的空间内。
  6. 如权利要求5所述的五轴音圈马达，其特征在于，所述第一载体上具有第一凸起，所述第一平移线圈穿设在所述第一凸起上，所述第一载体可移动地嵌置在所述方形框架的顶部，且所述第一平移线圈位于相邻两块挡板之间。
  7. 如权利要求5所述的五轴音圈马达，其特征在于，所述第二载体上具有第二凸起，所述第二平移线圈穿设在所述第二凸起上，所述第二载体可移动地嵌置在所述方形框架的底部，且所述第二平移线圈位于相邻两块挡板之间。
  8. 如权利要求2所述的五轴音圈马达，其特征在于，所述上弹簧包括四个上弹簧独立单元，所述上弹簧独立单元包括相互连接的上弹簧内臂、中间臂和上弹簧外臂，所述四个独立单元的上弹簧内臂、中间臂和上弹簧外臂分别围设成上弹簧内圈、上弹簧中间圈以及上弹簧外圈，所述上弹簧内圈贴合固定在所述第一载体的上端，所述上弹簧中间圈贴合固定在所述支架的上端，所述上弹簧外圈贴合固定在所述上盖端子与所述磁铁的顶部之间。
  9. 如权利要求2所述的五轴音圈马达，其特征在于，所述下弹簧包括八个下弹簧独立单元，所述下弹簧独立单元包括下弹簧内臂和下弹簧外臂，所述下弹簧内臂与所述下弹簧外臂之间连接有弹簧丝，所述八个下弹簧独立单元的下弹簧内臂、弹簧丝和下弹簧外臂分别围设成下弹簧内圈、下弹簧中间圈以及下弹簧外圈，所述下弹簧内圈贴合固定在所述第二载体的下端，所述下弹簧中间圈贴合固定在所述支架的下端，所述下弹簧外圈贴合固定在所述下盖端子与所述磁铁的底部之间。
  10. 如权利要求1至9中任意一项所述的五轴音圈马达，其特征在于，所述上盖端子的底部具有若干插脚，所述下盖端子的顶部与所述插脚相对应的位置处开设有若干通孔，所述上盖端子扣合在所述下盖端子上，且所述若干插脚分别穿过所述若干通孔。
PCT/CN2017/088088 2017-06-13 2017-06-13 一种五轴音圈马达 WO2018227388A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/088088 WO2018227388A1 (zh) 2017-06-13 2017-06-13 一种五轴音圈马达

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/088088 WO2018227388A1 (zh) 2017-06-13 2017-06-13 一种五轴音圈马达

Publications (1)

Publication Number Publication Date
WO2018227388A1 true WO2018227388A1 (zh) 2018-12-20

Family

ID=64659813

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/088088 WO2018227388A1 (zh) 2017-06-13 2017-06-13 一种五轴音圈马达

Country Status (1)

Country Link
WO (1) WO2018227388A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130170040A1 (en) * 2011-12-29 2013-07-04 Hon Hai Precision Industry Co., Ltd. Lens module including voice coil motor and image sensor module
US20140205274A1 (en) * 2010-10-22 2014-07-24 Tdk Taiwan Corporation Tilt-type anti-shake compensation structure for auto-focus
CN103986300A (zh) * 2014-05-20 2014-08-13 深圳市世尊科技有限公司 一种控制镜头运动的3轴音圈马达
CN104283396A (zh) * 2014-10-21 2015-01-14 深圳市世尊科技有限公司 一种通过平移运动实现光学防抖的音圈马达
CN105099119A (zh) * 2015-09-25 2015-11-25 爱佩仪光电技术（深圳）有限公司 一种能改变移轴中心的光学防抖音圈马达及其装配方法
CN205539654U (zh) * 2016-03-23 2016-08-31 宁波金诚泰电子有限公司 一种光学防抖音圈马达
CN206039113U (zh) * 2016-08-15 2017-03-22 深圳市世尊科技有限公司 一种可分体控制的光学防抖音圈马达

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140205274A1 (en) * 2010-10-22 2014-07-24 Tdk Taiwan Corporation Tilt-type anti-shake compensation structure for auto-focus
US20130170040A1 (en) * 2011-12-29 2013-07-04 Hon Hai Precision Industry Co., Ltd. Lens module including voice coil motor and image sensor module
CN103986300A (zh) * 2014-05-20 2014-08-13 深圳市世尊科技有限公司 一种控制镜头运动的3轴音圈马达
CN104283396A (zh) * 2014-10-21 2015-01-14 深圳市世尊科技有限公司 一种通过平移运动实现光学防抖的音圈马达
CN105099119A (zh) * 2015-09-25 2015-11-25 爱佩仪光电技术（深圳）有限公司 一种能改变移轴中心的光学防抖音圈马达及其装配方法
CN205539654U (zh) * 2016-03-23 2016-08-31 宁波金诚泰电子有限公司 一种光学防抖音圈马达
CN206039113U (zh) * 2016-08-15 2017-03-22 深圳市世尊科技有限公司 一种可分体控制的光学防抖音圈马达

Similar Documents

Publication Publication Date Title
WO2018155964A1 (ko) Ois 카메라 모듈
CN102798959B (zh) 一种可实现镜头可控倾斜的音圈马达结构
CN110784629B (zh) 摄像单元、摄像头模组及移动终端
WO2014137102A1 (ko) 휴대 단말기의 카메라 렌즈 모듈
WO2015147385A1 (ko) 자동 초점 및 손떨림 보정기능을 구비한 카메라 모듈
WO2014157998A1 (en) Camera lens module
WO2021147280A1 (zh) 一种五轴ois结构的音圈马达、照相装置及电子设备
WO2015176590A1 (zh) 一种控制镜头运动的3轴音圈马达
CN207114991U (zh) 一种多轴音圈马达
US10156733B2 (en) Lens device
WO2016206077A1 (zh) 一种抗磁干扰光学防抖音圈马达
WO2016206074A1 (zh) 一种抗磁干扰光学防抖音圈马达及其制造方法
US10690996B2 (en) Magnetic interference-resistant translation-type optical image stabilization voice coil motor and its method of assembling
CN210666282U (zh) 防抖结构、防抖系统及摄像装置
US11683587B2 (en) Camera device with optical image stabilization
WO2018227388A1 (zh) 一种五轴音圈马达
WO2018227589A1 (zh) 一种多轴音圈马达
WO2023125306A1 (zh) 摄像头结构及电子设备
WO2013000429A1 (zh) 一种电磁驱动装置及电磁镜头驱动装置
WO2015141943A1 (ko) 휴대단말기용 카메라 액추에이터
CN214751042U (zh) 致动器、镜头模组和电子设备
WO2018227588A1 (zh) 一种三轴光学防抖音圈马达
WO2013104162A1 (zh) 一种透镜驱动装置
CN208210102U (zh) Ois音圈马达、摄像模组及电子产品
WO2018227586A1 (zh) 一种三轴平移光学防抖音圈马达以及双摄双光学防抖模组

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: 17913612

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: 17913612

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 13/05/2020)

122 Ep: pct application non-entry in european phase

Ref document number: 17913612

Country of ref document: EP

Kind code of ref document: A1