WO2015176590A1 - Three-axis voice coil motor for controlling motion of lens - Google Patents
Three-axis voice coil motor for controlling motion of lens Download PDFInfo
- Publication number
- WO2015176590A1 WO2015176590A1 PCT/CN2015/076773 CN2015076773W WO2015176590A1 WO 2015176590 A1 WO2015176590 A1 WO 2015176590A1 CN 2015076773 W CN2015076773 W CN 2015076773W WO 2015176590 A1 WO2015176590 A1 WO 2015176590A1
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- WIPO (PCT)
- Prior art keywords
- lens
- coil
- voice coil
- lens holder
- translation
- Prior art date
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- 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 present invention relates to a motor device, and more particularly to a voice coil motor that can control lens motion.
- OIS VCM OIS VCM
- the corresponding driving structure is added at the outer four sides of the structure to realize the OIS function, resulting in the overall outer dimensions of the OIS VCM reaching about 10 mm x 10 mm. It is too large to conform to the ultra-light and ultra-thin trend of smartphones, so most mobile phones cannot install such auto-focus motors.
- the existing OIS VCM is generally controlled by three sets of coils, and the pins are generally 6 One or more, therefore, the required control chip has relatively high requirements, the control process is complicated, and the control cost is high.
- the shaft voice coil motor includes a casing composed of a bottom cover and a yoke, a lens holder disposed in the casing, at least two translating coils disposed at a periphery of the lens holder, at least one end connecting the lens holder end and the outer casing end
- a spring piece is disposed on one end of the lens holder with a focusing coil, and the inner wall of the yoke is provided with a magnet that interacts with the translating coil and the focusing coil.
- the invention can drive the lens in multiple directions by the combination of the focus coil and the plurality of translation coils and the corresponding magnets, and can realize the anti-shake function. Due to the small volume of the invention, the driving part constituting the motor has multiple Common components, so the structure is relatively simple and simple, the required number of pins is small, so that the chip structure is relatively simple, easy to drive circuit to match, installation and assembly is also convenient, the overall power consumption is lower, more Suitable for mass production and extensive promotion.
- Figure 1 is an exploded view of a first embodiment of the present invention
- Figure 2 is a cross-sectional view showing a first embodiment of the present invention
- FIG. 3 is a schematic structural view of a spring piece according to a first embodiment of the present invention.
- Figure 4 is an exploded view of a second embodiment of the present invention.
- Figure 5 is a cross-sectional view showing a second embodiment of the present invention.
- the 3-axis voice coil motor for controlling lens movement mainly comprises a casing, a lens holder 7, a translation coil 4, and a focusing coil 5 , magnet 3, spring piece 2 .
- the outer casing is composed of a bottom cover 6 and a yoke 1 in which the yoke 1 Made of metal, it can effectively isolate the internal and external magnetic fields of the shell.
- the shape of the shell is not fixed. It can be made into cylindrical, square or polygonal columns as needed.
- a lens mount 7 matching the shape thereof is provided in the outer casing, and the lens mount 7
- the spring piece 2 is elastically connected to the outer casing.
- the end of the lens holder can be connected to the bottom cover or the yoke top through a spring piece 2, and both are connected by two spring pieces.
- Translation coil 4 The symmetry is set on the periphery of the lens holder 7, and the number of the translation coils 4 can be set to two, or two or more, for example, four, etc., can be set according to the situation.
- a focus coil is provided on one end of the lens holder 7 Used to achieve lens focus.
- the inner wall of the yoke 1 is provided with a magnet 3 interacting with the translating coil 4 and the focusing coil 5, and the magnet 3 needs at least 3 It is also possible to set a plurality of coils according to the number of coils.
- the combination of the above coil and the magnet constitutes a plurality of sets of motor drives.
- the magnet 3 faces the translation coil 4 and the focus coil 5
- the sides can be of the same polarity, and the direction of the current of the translation coil 4 and the focus coil 5 is the same.
- the magnet 3 faces the translation coil 4 and the side of the focus coil 5 can also be planar two-stage magnetization, corresponding to the translation coil
- the part of 4 is a polarity
- the part corresponding to the focus coil is the other polarity, at this time, the translation coil 4 and the focus coil 5
- the current is in the opposite direction.
- control of the voice coil motor requires a minimum of 4 pins, and 3 pins correspond to 2 translation coils, 1 One pin corresponds to the focus coil and the other pin is the common ground of all coils. Due to the small number of pins required, the control chip structure used by the control unit is better than the existing OIS VCM. The chip used in the lens is much simpler.
- FIG. 1 to 3 show a first embodiment of the present invention, in which the outer casing and the lens mount are square posts, and the lens mount 7
- the upper lens is coaxial with and parallel to the optical axis, and four magnets are evenly arranged on the inner wall of the yoke.
- the four sides of the lens holder are provided with a corresponding number of translation coils 4 on the four sides of the lens relative to the magnet, and the focusing coil 5 It is located at one end of the lens holder. Therefore, the plane of the four flat push coils is perpendicular to the plane of the focus coil, and the side of the magnet 3 facing the focus coil is of the same polarity and is set to the S pole.
- Lens mount 7 The upper and lower ends are provided with a spring piece 2, and the spring piece 2 includes a movable block 21 fixed to the end of the lens holder 7, and a plurality of fixing blocks uniformly attached to the outer end of the movable block at the periphery of the movable block 22
- the movable block 21 and the fixed block 22 are connected by a plurality of elastic connecting strips 23.
- the connection point of the elastic connecting strip 23 connecting the movable block 21 is away from the connecting fixed block 22
- the connecting points are separated by a certain distance, so that the elastic connecting strip is long enough to support the movement of the lens mount.
- each coil is used 1 A common ground terminal, so that the control device used with the voice coil motor only needs to set 6 pins, 5 of which are corresponding to the coil, and 1
- the structure of the voice coil motor having the same function as in the prior art is much simpler, and the structure of the corresponding control chip is also simpler.
- FIGS. 4 to 5 show a second embodiment of the present invention, in which the housing and the lens holder of the yoke 1 ' and the bottom cover 6' are formed.
- the housing and the lens holder of the yoke 1 ' and the bottom cover 6' are formed.
- the inner wall of the yoke is evenly provided with 3 magnets 3 ', and 2 translation coils are arranged on the lens holder relative to the position of 2 magnets 4 ', the end of the lens holder 7' is surrounded by a circular focusing coil 5'.
- Bottom cover 6 A spring piece 2' is connected between the lens holder 7'.
- This embodiment is identical to the working principle of the first embodiment, and is another variation of the present invention.
- This embodiment only needs to use 3 magnets, 1 spring piece, 4 With one pin (or six), the existing OIS VCM lens can be realized, which not only greatly reduces the production cost, but also reduces the complexity of product assembly.
- the plurality of sets of motors of the present invention drive common parts, such as pins, magnets, springs, etc., so that the number of parts is greatly reduced, thereby reducing production difficulty, and the voice coil motor of the present invention can control the size at 8.5*8.5mm, the area is very small, on the basis of the required functions, it can be the same size as the traditional motor, suitable for various models.
Abstract
A three-axis voice coil motor for controlling the motion of a lens. The three-axis voice coil motor comprises: a shell which is composed of a bottom cover (6) and a magnetic yoke (1); a lens mount (7) arranged in the shell; at least two translating coils (4) arranged on the periphery of the lens mount; and at least one spring piece (2) which connects the end part of the lens mount with the end part of the shell. A focusing coil (5) is sheathed on the periphery of one end of the lens mount, and magnets (3) which interact with the translation coil and the focusing coil are provided on inner walls of the magnetic yoke. The voice coil motor has a simple structure, can achieve an anti-shake function of a lens, cooperates easily with a drive circuit, is suitable for various mobile phones and is convenient for volume production.
Description
本发明涉及马达设备，尤其涉及一种可以对镜头运动进行控制的音圈马达。 The present invention relates to a motor device, and more particularly to a voice coil motor that can control lens motion.
随着智能手机的普及，人们对智能手机的功能要求也越来越高，例如，很多用户都希望时刻随身携带的智能手机可以同数码相机一样，拍摄出完美的照片。可是数码相机能够实现光学防抖（
OIS ）和移轴摄影的技术，是需要相对复杂的机械结构控制镜头的多维度运动，虽然智能手机的厂商也一直致力于此方面的研发，其中以 TDK, Mistumi
，富士康，为代表，已经研发出了带 OIS 功能的音圈马达（ VCM
），但是上述各厂商生产的音圈马达都存在各自的缺点，例如量产难度大，不易于马达驱动电路匹配，功耗大，体积略大等。
With the popularity of smart phones, people have higher and higher requirements for the functions of smart phones. For example, many users hope that the smart phones that they carry with them can take the same photos as digital cameras. However, digital cameras can achieve optical image stabilization (
OIS and shift-axis photography are multi-dimensional motions that require relatively complex mechanical structures to control the lens, although smartphone manufacturers have been working on this aspect of development, including TDK, Mistumi.
, Foxconn, as a representative, has developed a voice coil motor with OIS function (VCM
However, the voice coil motors produced by the above-mentioned various manufacturers all have their own shortcomings, such as mass production difficulty, not easy to match the motor drive circuit, large power consumption, and slightly larger volume.
例如，有的厂商生产的 OIS VCM
在现有的自动对焦马达的基础上，在其结构的外侧四边位置增加相应的驱动结构，实现 OIS 功能，导致 OIS VCM 的整体外形尺寸达到了约 10mmx10mm
，体积较大，无法顺应智能手机超轻超薄的流行趋势，因而大部分手机都无法安装这种自动对焦马达。 For example, some manufacturers produce OIS VCM
On the basis of the existing autofocus motor, the corresponding driving structure is added at the outer four sides of the structure to realize the OIS function, resulting in the overall outer dimensions of the OIS VCM reaching about 10 mm x 10 mm.
It is too large to conform to the ultra-light and ultra-thin trend of smartphones, so most mobile phones cannot install such auto-focus motors.
并且，现有 OIS VCM
由于其原理性，采用多组马达驱动，且相应零部件无法公用，导致其零部件较多，比如磁石数量需要 6-8 块，弹簧（旋簧）数量需要 4-6
个，结构复杂，组装过程也比较麻烦耗时，整体生产成本较高。 And existing OIS VCM
Due to its principle, multiple sets of motors are used, and the corresponding parts cannot be used together, resulting in more parts, such as 6-8 magnets and 4-6 springs.
The structure is complicated, the assembly process is also troublesome and time consuming, and the overall production cost is high.
再者，现有 OIS VCM 一般采用 3 组线圈单独控制，其引脚一般为 6
个或以上，因此所需控制芯片相对要求较高，控制过程复杂，且控制成本较高。 Furthermore, the existing OIS VCM is generally controlled by three sets of coils, and the pins are generally 6
One or more, therefore, the required control chip has relatively high requirements, the control process is complicated, and the control cost is high.
因此，如何提供一种体积较小的、方便控制、结构简洁的音圈马达是业界亟待解决的技术问题。 Therefore, how to provide a voice coil motor with a small volume, convenient control and simple structure is an urgent technical problem to be solved in the industry.
本发明为了解决上述现有技术中存在的技术问题，提出一种控制镜头运动的 3
轴音圈马达，包括由底盖和磁轭构成的外壳、设于外壳内的镜头座、设于所述镜头座外围的至少 2 个平移线圈、连接镜头座端部和外壳端部的至少 1
个弹簧片，镜头座的一端外围套有对焦线圈，所述磁轭内壁上设有与所述平移线圈和对焦线圈相互作用的磁石。 In order to solve the above technical problems existing in the prior art, the present invention proposes a control lens movement 3
The shaft voice coil motor includes a casing composed of a bottom cover and a yoke, a lens holder disposed in the casing, at least two translating coils disposed at a periphery of the lens holder, at least one end connecting the lens holder end and the outer casing end
A spring piece is disposed on one end of the lens holder with a focusing coil, and the inner wall of the yoke is provided with a magnet that interacts with the translating coil and the focusing coil.
本技术方案的平移线圈和对焦线圈有多种组合方式，弹簧片的数量也可以根据实际情况进行变更。本发明通过对焦线圈和若干个平移线圈以及对应磁铁的组合，可以对镜头进行多个方向上的驱动，并且可以实现防抖功能，由于本发明的体积较小，构成马达的驱动部分有多个可公用部件，因此结构也相对更加简洁简单，所需的引脚个数少，使之适配的芯片结构也相对简单，易于驱动电路进行匹配，安装组装也方便，整体功耗更低，更适合量产和广泛推广。
There are various combinations of the translation coil and the focus coil of the present technical solution, and the number of the spring pieces can also be changed according to actual conditions. The invention can drive the lens in multiple directions by the combination of the focus coil and the plurality of translation coils and the corresponding magnets, and can realize the anti-shake function. Due to the small volume of the invention, the driving part constituting the motor has multiple Common components, so the structure is relatively simple and simple, the required number of pins is small, so that the chip structure is relatively simple, easy to drive circuit to match, installation and assembly is also convenient, the overall power consumption is lower, more Suitable for mass production and extensive promotion.
图 1 为本发明第一实施例的爆炸图； Figure 1 is an exploded view of a first embodiment of the present invention;
图 2 为本发明第一实施例的剖视图； Figure 2 is a cross-sectional view showing a first embodiment of the present invention;
图 3 为本发明第一实施例弹簧片的结构示意图； 3 is a schematic structural view of a spring piece according to a first embodiment of the present invention;
图 4 为本发明第二实施例的爆炸图； Figure 4 is an exploded view of a second embodiment of the present invention;
图 5 为本发明第二实施例的剖视图。 Figure 5 is a cross-sectional view showing a second embodiment of the present invention.
本发明提供的控制镜头运动的 3 轴音圈马达，主要包括外壳、镜头座 7 、平移线圈 4 、对焦线圈 5
、磁石 3 、弹簧片 2 。 The 3-axis voice coil motor for controlling lens movement provided by the invention mainly comprises a casing, a lens holder 7, a translation coil 4, and a focusing coil 5
, magnet 3, spring piece 2 .
外壳由底盖 6 和磁轭 1 组成，其中磁轭 1
采用金属制成，可以有效隔离壳体的内外磁场，外壳的形状不定，可以根据需要做成圆柱、方形柱或者多边形柱。外壳内设有与其形状相匹配的镜头座 7 ，镜头座 7
通过弹簧片 2 与外壳弹性连接，例如，可以将镜头座的端部通过 1 个弹簧片 2 与底盖或磁轭顶部连接，通过 2 个弹簧片与它们都进行连接。平移线圈 4
对称设在镜头座 7 的外围上，平移线圈 4 的数量可以设置为 2 个，也可以根据情况设置 2 个以上，例如 4 个等。镜头座 7 的一端外围套有一对焦线圈 5
，用来实现镜头对焦。磁轭 1 的内壁上设有与平移线圈 4 以及对焦线圈 5 相互作用的磁石 3 ，磁石 3 至少需要设置 3
个，也可以根据线圈的数量对应设置多个。 The outer casing is composed of a bottom cover 6 and a yoke 1 in which the yoke 1
Made of metal, it can effectively isolate the internal and external magnetic fields of the shell. The shape of the shell is not fixed. It can be made into cylindrical, square or polygonal columns as needed. A lens mount 7 matching the shape thereof is provided in the outer casing, and the lens mount 7
The spring piece 2 is elastically connected to the outer casing. For example, the end of the lens holder can be connected to the bottom cover or the yoke top through a spring piece 2, and both are connected by two spring pieces. Translation coil 4
The symmetry is set on the periphery of the lens holder 7, and the number of the translation coils 4 can be set to two, or two or more, for example, four, etc., can be set according to the situation. A focus coil is provided on one end of the lens holder 7
Used to achieve lens focus. The inner wall of the yoke 1 is provided with a magnet 3 interacting with the translating coil 4 and the focusing coil 5, and the magnet 3 needs at least 3
It is also possible to set a plurality of coils according to the number of coils.
上述线圈和磁石组合构成多组马达驱动。其中，磁石 3 朝向平移线圈 4 和对焦线圈 5
的侧面可以为同一极性，这时平移线圈 4 与对焦线圈 5 的电流方向相同。磁石 3 朝向平移线圈 4 和对焦线圈 5 的侧面也可以是平面两级充磁，对应平移线圈
4 的部分为一种极性，对应对焦线圈的部分为另一极性，此时平移线圈 4 与对焦线圈 5
的电流方向相反。这些线圈的接地极都是公用的，因此，使得音圈马达的控制装置最少只需要设置 4 个引脚， 3 个引脚分别对应 2 个平移线圈， 1
个引脚对应对焦线圈，另一个引脚为所有线圈的公共接地端。由于所需引脚数量少，使得控制装置所采用的控制芯片结构比现有的 OIS VCM
镜头所采用的芯片要相对简单得多。 The combination of the above coil and the magnet constitutes a plurality of sets of motor drives. Wherein the magnet 3 faces the translation coil 4 and the focus coil 5
The sides can be of the same polarity, and the direction of the current of the translation coil 4 and the focus coil 5 is the same. The magnet 3 faces the translation coil 4 and the side of the focus coil 5 can also be planar two-stage magnetization, corresponding to the translation coil
The part of 4 is a polarity, and the part corresponding to the focus coil is the other polarity, at this time, the translation coil 4 and the focus coil 5
The current is in the opposite direction. The grounding poles of these coils are common, so the control of the voice coil motor requires a minimum of 4 pins, and 3 pins correspond to 2 translation coils, 1
One pin corresponds to the focus coil and the other pin is the common ground of all coils. Due to the small number of pins required, the control chip structure used by the control unit is better than the existing OIS VCM.
The chip used in the lens is much simpler.
下面结合附图对本发明的两个具体实施例进行详细说明。 Two specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
图 1 至图 3 给出了本发明的第一实施例，在该实施例中，外壳和镜头座均为方形柱，镜头座 7
上的镜头与其同轴且平行于光轴，磁轭内壁均匀设置了 4 块磁石 3 ，镜头座外围的四个侧面上相对于磁石的位置设有相应数量的平移线圈 4 ，对焦线圈 5
设在镜头座的一端，因此， 4 个平推线圈所在平面垂直于对焦线圈所在平面，且磁石 3 面向对焦线圈的侧面为同一极性，均设为 S 极。镜头座 7
上下两端均设有弹簧片 2 ，弹簧片 2 包括一与镜头座 7 端部相固接的活动块 21 ，以及均布在活动块外围与外壳端部相固接的多块固定块 22
，通过多根弹性连接条 23 连接活动块 21 与固定块 22 。在本实施例中弹性连接条 23 连接活动块 21 的连接点距离连接固定块 22
的连接点之间间隔了一定的距离，使得弹性连接条够长，可以支持镜头座的运动。在本实施例中，由于各线圈采用 1
个公共接地端，使得与音圈马达配合使用的控制装置只需要设置 6 个引脚，其中 5 个分别对应线圈，另外 1
个为公共接地端，与现有技术中相同功能的音圈马达的结构要简单得多，相应的控制芯片结构也更加简单。 1 to 3 show a first embodiment of the present invention, in which the outer casing and the lens mount are square posts, and the lens mount 7
The upper lens is coaxial with and parallel to the optical axis, and four magnets are evenly arranged on the inner wall of the yoke. The four sides of the lens holder are provided with a corresponding number of translation coils 4 on the four sides of the lens relative to the magnet, and the focusing coil 5
It is located at one end of the lens holder. Therefore, the plane of the four flat push coils is perpendicular to the plane of the focus coil, and the side of the magnet 3 facing the focus coil is of the same polarity and is set to the S pole. Lens mount 7
The upper and lower ends are provided with a spring piece 2, and the spring piece 2 includes a movable block 21 fixed to the end of the lens holder 7, and a plurality of fixing blocks uniformly attached to the outer end of the movable block at the periphery of the movable block 22
The movable block 21 and the fixed block 22 are connected by a plurality of elastic connecting strips 23. In the present embodiment, the connection point of the elastic connecting strip 23 connecting the movable block 21 is away from the connecting fixed block 22
The connecting points are separated by a certain distance, so that the elastic connecting strip is long enough to support the movement of the lens mount. In this embodiment, since each coil is used 1
A common ground terminal, so that the control device used with the voice coil motor only needs to set 6 pins, 5 of which are corresponding to the coil, and 1
The structure of the voice coil motor having the same function as in the prior art is much simpler, and the structure of the corresponding control chip is also simpler.
当对焦线圈 5 通电时， 4 块磁石 3
对镜头座产生一个平行光轴的作用力，使镜头座眼光轴方向前后移动，从而实现镜头的对焦；当镜头座上两个向对面的平推线圈通电时，会与它们相对应的磁石相互作用，对镜头座
7 产生一个垂直于光轴的推力，并作用在镜头座的一个侧面是，使镜头座 7 发生相对于对焦线圈 11 所在平面平行的移动以及偏转。 4
个平推线圈可以控制镜头在两个正交方向上产生水平移动和相对与光轴的倾斜运动，从而 5 个线圈控制镜头在三个及以上自由度运动。本实施例通过 5
个线圈配合装设与线圈周围的 4 块磁石，可实现对镜头的对焦和可控平移和偏转，且产品整体体积小、易于与驱动电路相匹配。 When the focus coil 5 is energized, 4 magnets 3
A force of a parallel optical axis is generated on the lens holder, so that the optical axis of the lens holder moves forward and backward to achieve focusing of the lens; when two oppositely-pushed flat coils are energized on the lens holder, the magnets corresponding to them are mutually Role, on the lens mount
7 Produces a thrust perpendicular to the optical axis and acts on one side of the lens mount to cause the lens mount 7 to move and deflect parallel to the plane of the focus coil 11. 4
A flat push coil can control the horizontal movement of the lens in two orthogonal directions and the tilting motion relative to the optical axis, so that the five coils control the lens to move in three or more degrees of freedom. This embodiment passes 5
The coils are fitted with 4 magnets around the coil to achieve focus and controllable translation and deflection of the lens, and the overall size of the product is small and easy to match the drive circuit.
图 4 至图 5 给出了本发明的第二实施例，在该实施例中，磁轭 1 ＇和底盖6＇构成的 外壳和镜头座 7
＇ 均为圆柱形，磁轭内壁均匀设有 3 块磁石 3 ＇ ，镜头座上相对于其中 2 块磁石的位置设有 2 个平移线圈 4
＇，镜头座7＇的端部外围套有圆环形的对焦线圈5＇ 。底盖 6
＇与镜头座7＇之间连接了一弹簧片2＇。本实施例与第一实施例的工作原理相同，为本发明的另一种变形，该实施例只需 使用 3 块磁石、 1 个弹簧片、 4
个引脚（也可以为 6 个），就可以实现现有的 OIS VCM 镜头的功能，不仅大大降低了生产成本，并且也降低了产品的组装的复杂程度。 4 to 5 show a second embodiment of the present invention, in which the housing and the lens holder of the yoke 1 ' and the bottom cover 6' are formed.
'There are cylindrical shapes, and the inner wall of the yoke is evenly provided with 3 magnets 3 ', and 2 translation coils are arranged on the lens holder relative to the position of 2 magnets 4
', the end of the lens holder 7' is surrounded by a circular focusing coil 5'. Bottom cover 6
A spring piece 2' is connected between the lens holder 7'. This embodiment is identical to the working principle of the first embodiment, and is another variation of the present invention. This embodiment only needs to use 3 magnets, 1 spring piece, 4
With one pin (or six), the existing OIS VCM lens can be realized, which not only greatly reduces the production cost, but also reduces the complexity of product assembly.
本发明的多组马达驱动共用部分零部件，例如引脚、磁铁、弹簧片等，使得零部件的数量大大减少，从而降低了生产难度，并且本发明的音圈马达能够将尺寸控制在
8.5*8.5mm ，面积很小，在实现所需功能的基础上，能够做到与传统马达相同的尺寸，适用于各种机型。
The plurality of sets of motors of the present invention drive common parts, such as pins, magnets, springs, etc., so that the number of parts is greatly reduced, thereby reducing production difficulty, and the voice coil motor of the present invention can control the size at
8.5*8.5mm, the area is very small, on the basis of the required functions, it can be the same size as the traditional motor, suitable for various models.
以上具体实施例仅用以举例说明本发明的结构，本领域的普通技术人员在本发明的构思下可以做出多种变形和变化，这些变形和变化均包括在本发明的保护范围之内。
The above specific embodiments are only intended to exemplify the structure of the present invention, and those skilled in the art can make various modifications and changes within the scope of the present invention.
Claims (8)
- 一种控制镜头运动的 3 轴音圈马达，包括由底盖（ 6 ）和磁轭（ 1 ）构成的外壳、设于外壳内的镜头座（ 7 ）、设于所述镜头座（ 7 ）外围的至少 2 个平移线圈（ 4 ）、连接镜头座端部和外壳端部的至少 1 个弹簧片（ 2 ），其特征在于：所述镜头座（ 7 ）的一端外围套有对焦线圈（ 5 ），所述磁轭（ 1 ）内壁上设有与所述平移线圈（ 4 ）和对焦线圈（ 5 ）相互作用的磁石（ 3 ）。 A 3-axis voice coil motor for controlling lens movement, comprising an outer casing composed of a bottom cover (6) and a yoke (1), and a lens mount provided in the outer casing (7) At least two translating coils (4) disposed on the periphery of the lens holder (7), at least one spring piece (2) connecting the end portions of the lens holder and the end of the casing, characterized in that: the lens holder ( 7 One end of the ferrule is sleeved with a focusing coil (5), and the inner wall of the yoke (1) is provided with a magnet (3) interacting with the translating coil (4) and the focusing coil (5).
- 如权利要求 1 所述的控制镜头运动的 3 轴音圈马达，其特征在于：所述平移线圈（ 4 ）和对焦线圈（ 5 ）之间共用一接地端。 A 3-axis voice coil motor for controlling lens movement according to claim 1, wherein said translation coil (4) and focus coil (5) ) share a ground terminal.
- 如权利要求 2 所述的控制镜头运动的 3 轴音圈马达，其特征在于：所述弹簧片（ 2 ）设有 2 个，分别位于镜头座（ 7 ）的两端。 A 3-axis voice coil motor for controlling movement of a lens according to claim 2, wherein said spring piece (2) is provided with two, respectively located in the lens holder (7). Both ends.
- 如权利要求 3 所述的控制镜头运动的 3 轴音圈马达，其特征在于：所述弹簧片（ 2 ）包括一与镜头座（ 7 ）端部相固接的活动块（ 21 ）、均布在活动圈外围与外壳端部相固接的多块固定块（ 22 ）、连接所述活动块（ 21 ）与固定块（ 22 ）的弹性连接条（ 23 ）。 A 3-axis voice coil motor for controlling movement of a lens according to claim 3, wherein said spring piece (2) comprises a lens holder (7). a movable block (21) fixed at the end, a plurality of fixed blocks (22) uniformly attached to the outer end of the outer ring at the periphery of the movable ring, and the movable block (21) and the fixed block (22) Flexible connecting strip ( 23 ).
- 如权利要求 4 所述的控制镜头运动的 3 轴音圈马达，其特征在于：所述磁石（ 3 ）朝向平移线圈（ 4 ）和对焦线圈（ 5 ）的侧面为同一极性，所述平移线圈（ 4 ）与对焦线圈（ 5 ）的电流方向相同。 A 3-axis voice coil motor for controlling lens movement according to claim 4, wherein said magnet (3) faces the translation coil (4) and the focus coil ( The sides of 5) are of the same polarity, and the translation coil (4) has the same current direction as the focus coil (5).
- 如权利要求 4 所述的控制镜头运动的 3 轴音圈马达，其特征在于：所述磁石（ 3 ）朝向平移线圈（ 4 ）和对焦线圈（ 5 ）的侧面为平面两级充磁，所述平移线圈（ 4 ）与对焦线圈（ 5 ）的电流方向相反。 A 3-axis voice coil motor for controlling lens movement according to claim 4, wherein said magnet (3) faces the translation coil (4) and the focus coil ( The side of 5) is two-stage magnetization, and the translation coil (4) is opposite to the current of the focus coil (5).
- 如权利要求 1 至 6 任意一项权利要求所述的控制镜头运动的 3 轴音圈马达，其特征在于：所述外壳和镜头座为圆柱形，所述磁轭内壁均匀设有 3 块磁石（ 3 ），所述镜头座上相对于其中 2 块磁石的位置设有 2 个平移线圈（ 4 ）。 Controlling lens motion as claimed in any one of claims 1 to 6 The shaft voice coil motor is characterized in that: the outer casing and the lens holder are cylindrical, and the inner wall of the yoke is uniformly provided with three magnets (3), and the lens holder is provided with two positions relative to two magnets. Translation coil 4).
- 如权利要求 1 至 6 任意一项权利要求所述的控制镜头运动的 3 轴音圈马达，其特征在于：所述外壳和镜头座为方形柱，所述磁轭内壁均匀设有 4 块磁石（ 3 ），所述镜头座上相对于所述磁石的位置设有相应数量的平移线圈（ 4 ）。 Controlling lens motion as claimed in any one of claims 1 to 6 The shaft voice coil motor is characterized in that: the outer casing and the lens holder are square pillars, and the inner wall of the yoke is uniformly provided with four magnets (3), and the lens holder is provided with a corresponding number of positions relative to the magnet Translation coil (4 ).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212945.X | 2014-05-20 | ||
| CN201410212945.XA CN103986300A (en) | 2014-05-20 | 2014-05-20 | Three-axis voice coil motor for controlling camera movement |
Publications (1)
| Publication Number | Publication Date |
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| WO2015176590A1 true WO2015176590A1 (en) | 2015-11-26 |
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ID=51278158
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2015/076773 WO2015176590A1 (en) | 2014-05-20 | 2015-04-16 | Three-axis voice coil motor for controlling motion of lens |
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| Country | Link |
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| CN (1) | CN103986300A (en) |
| WO (1) | WO2015176590A1 (en) |
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| TWI686038B (en) * | 2018-03-02 | 2020-02-21 | 同泰電子科技股份有限公司 | Voice coil motor |
| CN114089583A (en) * | 2021-11-30 | 2022-02-25 | 新思考电机有限公司 | Lens driving device, camera module and electronic equipment |
| CN114545582A (en) * | 2020-11-18 | 2022-05-27 | 河源友华微机电科技有限公司 | Piezoelectric elastic sheet type driving device for miniature camera |
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| CN103986300A (en) * | 2014-05-20 | 2014-08-13 | 深圳市世尊科技有限公司 | Three-axis voice coil motor for controlling camera movement |
| CN104317032B (en) * | 2014-11-05 | 2017-07-14 | 爱佩仪光电技术（深圳）有限公司 | A kind of miniature shift shaft type optical anti-vibration voice coil motor structure and assembly method for being conducive to producing |
| CN104460180B (en) * | 2014-12-19 | 2017-05-10 | 深圳市世尊科技有限公司 | Open-loop voice coil motor achieving optical anti-vibration in horizontal moving mode |
| WO2016206077A1 (en) * | 2015-06-26 | 2016-12-29 | 爱佩仪光电技术（深圳）有限公司 | Anti-magnetic-interference optical anti-vibration voice coil motor |
| WO2017024584A1 (en) * | 2015-08-13 | 2017-02-16 | 爱佩仪光电技术（深圳）有限公司 | Anti-magnetic-interference translational type optical anti-shake voice coil motor and assembly method therefor |
| CN105182655B (en) * | 2015-08-13 | 2018-07-20 | 爱佩仪光电技术（深圳）有限公司 | Diamagnetic interference parallel-moving type optical anti-vibration voice coil motor and its assembly method |
| CN107462964A (en) * | 2016-06-06 | 2017-12-12 | 新科实业有限公司 | The assemble method of SMA components and OIS devices |
| CN106443950A (en) * | 2016-09-30 | 2017-02-22 | 东莞佩斯讯光电技术有限公司 | Ultra-thin shaft-shift mid-set-type optical anti-shake voice coil motor |
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| CN103986300A (en) | 2014-08-13 |
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