WO2015176590A1 - Moteur à bobine mobile à trois axes pour commander le mouvement d'une lentille - Google Patents

Moteur à bobine mobile à trois axes pour commander le mouvement d'une lentille Download PDF

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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
Authority
WO
WIPO (PCT)
Prior art keywords
lens
coil
voice coil
lens holder
translation
Prior art date
Application number
PCT/CN2015/076773
Other languages
English (en)
Chinese (zh)
Inventor
钞晨
Original Assignee
深圳市世尊科技有限公司
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 深圳市世尊科技有限公司 filed Critical 深圳市世尊科技有限公司
Publication of WO2015176590A1 publication Critical patent/WO2015176590A1/fr

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Classifications

    • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Lens Barrels (AREA)

Abstract

L'invention concerne un moteur à bobine mobile à trois axes pour commander le mouvement d'une lentille. Le moteur à bobine mobile à trois axes comprend : une coque qui est composée d'un carter inférieur (6) et d'une culasse magnétique (1); une monture de lentille (7) disposée dans la coque; au moins deux bobines de translation (4) disposées sur la périphérie de la monture de lentille; et au moins une pièce à ressort (2) qui relie la partie d'extrémité de la monture de lentille à la partie d'extrémité de la coque. Une bobine de concentration (5) est manchonnée sur la périphérie d'une extrémité de la monture de lentille, et des aimants (3) qui interagissent avec la bobine de translation et la bobine de concentration sont disposés sur des parois internes de la culasse magnétique. Le moteur à bobine mobile présente une structure simple, permet d'obtenir une fonction anti-tremblement d'une lentille, coopère facilement avec un circuit d'attaque, est approprié pour divers téléphones mobiles et est commode pour une production à grande échelle.
PCT/CN2015/076773 2014-05-20 2015-04-16 Moteur à bobine mobile à trois axes pour commander le mouvement d'une lentille WO2015176590A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410212945.X 2014-05-20
CN201410212945.XA CN103986300A (zh) 2014-05-20 2014-05-20 一种控制镜头运动的3轴音圈马达

Publications (1)

Publication Number Publication Date
WO2015176590A1 true WO2015176590A1 (fr) 2015-11-26

Family

ID=51278158

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/076773 WO2015176590A1 (fr) 2014-05-20 2015-04-16 Moteur à bobine mobile à trois axes pour commander le mouvement d'une lentille

Country Status (2)

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CN (1) CN103986300A (fr)
WO (1) WO2015176590A1 (fr)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
TWI686038B (zh) * 2018-03-02 2020-02-21 同泰電子科技股份有限公司 音圈馬達
CN114089583A (zh) * 2021-11-30 2022-02-25 新思考电机有限公司 透镜驱动装置、摄像头模组及电子设备
CN114545582A (zh) * 2020-11-18 2022-05-27 河源友华微机电科技有限公司 微型相机的压电式弹片式驱动装置

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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
CN104317032B (zh) * 2014-11-05 2017-07-14 爱佩仪光电技术（深圳）有限公司 一种有利于生产的微型移轴式光学防抖音圈马达结构及装配方法
CN104460180B (zh) * 2014-12-19 2017-05-10 深圳市世尊科技有限公司 一种开环平移实现光学防抖的音圈马达
WO2016206077A1 (fr) * 2015-06-26 2016-12-29 爱佩仪光电技术（深圳）有限公司 Moteur à bobine acoustique antivibratoire optique anti-interférences magnétiques
CN105182655B (zh) * 2015-08-13 2018-07-20 爱佩仪光电技术（深圳）有限公司 抗磁干扰平移式光学防抖音圈马达及其装配方法
WO2017024584A1 (fr) * 2015-08-13 2017-02-16 爱佩仪光电技术（深圳）有限公司 Moteur de bobine vocale anti-vibration optique de type à translation anti-interférence magnétique et procédé d'assemblage associé
CN107462964A (zh) * 2016-06-06 2017-12-12 新科实业有限公司 Sma组件及ois装置的组装方法
CN106443950A (zh) * 2016-09-30 2017-02-22 东莞佩斯讯光电技术有限公司 超薄移轴中置式光学防抖音圈马达
WO2018227388A1 (fr) * 2017-06-13 2018-12-20 东莞佩斯讯光电技术有限公司 Moteur à bobine acoustique à cinq axes
WO2023246553A1 (fr) * 2022-06-20 2023-12-28 宁波舜宇光电信息有限公司 Dispositif d'entraînement et module de caméra

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JP2006087282A (ja) * 2004-09-16 2006-03-30 Vasstek Internatl Corp ボイスコイルモーター定位装置
CN203350575U (zh) * 2013-07-08 2013-12-18 李炜 一种控制镜头运动的音圈马达
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
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Publication number Priority date Publication date Assignee Title
TWI686038B (zh) * 2018-03-02 2020-02-21 同泰電子科技股份有限公司 音圈馬達
CN114545582A (zh) * 2020-11-18 2022-05-27 河源友华微机电科技有限公司 微型相机的压电式弹片式驱动装置
CN114545582B (zh) * 2020-11-18 2023-11-14 河源友华微机电科技有限公司 微型相机的压电式弹片式驱动装置
CN114089583A (zh) * 2021-11-30 2022-02-25 新思考电机有限公司 透镜驱动装置、摄像头模组及电子设备
CN114089583B (zh) * 2021-11-30 2023-09-19 新思考电机有限公司 透镜驱动装置、摄像头模组及电子设备

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