CN103454750A - Optical anti-vibration motor - Google Patents
Optical anti-vibration motor Download PDFInfo
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- CN103454750A CN103454750A CN2013103842740A CN201310384274A CN103454750A CN 103454750 A CN103454750 A CN 103454750A CN 2013103842740 A CN2013103842740 A CN 2013103842740A CN 201310384274 A CN201310384274 A CN 201310384274A CN 103454750 A CN103454750 A CN 103454750A
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- yoke iron
- lens
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- coil
- magnetite
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Abstract
The invention discloses an optical anti-vibration motor. The optical anti-vibration motor comprises a base and a magnet yoke iron shell which is arranged with the base in a matching mode. Magnets and a lens carrier are arranged inside the magnet yoke iron shell, wherein coils are wound around the lens carrier. A rear spring piece is arranged between the lens carrier and the base and the magnet yoke iron shell is of a square structure. The optical anti-vibration motor is characterized in that four sets of magnets are symmetrically arranged on the magnet yoke iron shell of the square structure, the four coils are symmetrically arranged outside the lens carrier and each coil corresponds to one set of magnet. A PCB is further arranged inside the base, the PCB is provided with four control ends, each control end is electrically connected with one coil and the PCB is further provided with external pins. The optical anti-vibration motor has the advantages that the anti-vibration performance is good and the motion reliability of the lens carrier is improved.
Description
Technical field
The present invention relates to lens driver, thereby be specifically related to a kind of mobile phone that is applied to camera, video camera or there is camera function, step on the anti-shake motor of optics to drive lens moving to focus on equipment.
Background technology
Along with the functional diversities of digital product, the digital equipment of video camera or camera is equipped with, as mobile phone, multimedia player etc., obtain high speed development and widespread use.Above-mentioned video camera or camera, can adopt the camera lens of the adjustable or automatic focusing of focal length usually, and the process of regulating is the position that changes camera lens, for driving lens moving, normally uses CD-ROM drive motor.
Its drive unit of focusing of traditional camera generally includes stepper motor, gear, the member such as cam and connecting rod forms, a kind of lens construction with stable automatic focusing function as disclosed as Chinese patent literature CN2938165Y, comprise housing, motor, the first gear, the second gear, camera lens module and elastic parts, described motor is arranged in this housing, described the first gear is arranged in this housing and is fixed on the axle center of this motor, described the second gear is arranged in this housing and vertically meshes together with this first gear, the upper surface of described the second gear has a helical ramp, described camera lens module is arranged in this housing, and camera lens module has a projection contacted with the helical ramp of the second gear.Wherein relate to numerous parts such as motor, two gears, housing, screw inclined plane, projection, camera lens module, make the size of camera larger, driven loads, therefore be difficult to adapt to the trend of miniaturization.
In order to adapt to the requirement of camera miniaturization, adopt more and more a kind of drive unit that utilizes magnetic field to produce power.In a kind of lens driver that is ZL200410017724.3 at Chinese invention patent number in disclosed scheme, comprise that one is arranged on the tubular magnet yoke ring on base, be mounted with magnetite and coil in this magnet yoke ring, this coil inner circumferential side is provided with the lens with the lens supports body, described magnetite and coil are placed in this magnet yoke ring inside, this coil is fixed on the periphery of lens supports body of this magnet yoke ring inner circumferential side, this lens supports body stretches in described tubular magnet yoke ring and can move in this magnet yoke ring, described lens driver also comprises annular front side reed and rear side reed, their outer circumferential side end is fixedly connected with the front side of described magnet yoke ring, also has a small cap, this small cap is fixed on end, reed inner circumferential side, described front side on described lens supports body front side, also has a framework, this framework is fixed on reed outer circumferential side end, described front side on the front side of described magnet yoke ring.
The said lens drive unit utilizes the electromagnetic induction effect of magnetite, make to be placed in the middle lens supports body of magnet yoke ring and be subject to parallel electromagnetic force generation displacement, the front side reed and the rear side reed that are placed in the lens supports body produce reacting force simultaneously, when the electromagnetic force on acting on the lens supports body and reed elastic force reach balance, this lens supports body remains on certain position; Be that the electromagnetic force produced after described coil electricity resists mutually in the acting force of described front side reed and rear side reed, order about described lens supports body and move to optical axis direction.
Although the said lens drive unit can move by both sides reed restriction lens supports body before and after it, make it to have anti-jolting and impact property, but because magnetite and coil are all an integral body, because the thrust that the otherness of magnetite and coil itself causes conductive coil to produce in magnetic field is inhomogeneous, therefore can cause shake, affect image quality.
Summary of the invention
The purpose of this invention is to provide the anti-shake motor of optics that a kind of anti-shudder performance is good.
To achieve these goals, technical scheme of the present invention is: the anti-shake motor of a kind of optics, comprise base, with the yoke iron-clad that base is equipped with, be provided with magnetite and the lens carrier that is arranged with coil in the yoke iron-clad, be provided with rear reed between lens carrier and base, described yoke iron-clad is square structure, the yoke iron-clad that it is characterized in that described square structure is arranged with four groups of magnetites, and the lens carrier external symmetry is provided with four coils, and each coil is corresponding with one group of magnetite position.Also be provided with a pcb board in base, this pcb board is provided with four control ends, and each control end is electrically connected to a coil, and this pcb board also is provided with external pin.The front end of yoke iron-clad also is provided with a framework, is provided with front reed between yoke iron-clad and framework.
According to a particular embodiment of the invention, the gap between described coil and magnetite is not more than 0.1mm, in order to overcome the requirement of concentricity and the requirement of modern mechanical processing, reduces the thrust loss that magnetic resistance causes.
The principle of the anti-shake motor of optics is by the principle of faraday's lefft-hand rule, and electrified wire is generation power in magnetic field, utilizes this displacing force to complete the promotion to the camera lens carrier.The present invention is respectively equipped with one group of magnetite in four angles of the yoke iron-clad of described square structure, and outside lens carrier, four coils corresponding with described four groups of magnetites is set, and four coils are connected with external control module by a control end of pcb board respectively.External like this control module passes into four coils by electric current, makes generation power in its magnetic field produced at each self-corresponding magnetite, makes four coils produce four equal-sized power, because four coils are symmetrical arranged, therefore promotes camera lens carrier balance and moves.Therefore the invention has the advantages that anti-shudder performance is good, improved the stability of lens carrier motion.
The accompanying drawing explanation
The explosion figure that Fig. 1 is one embodiment of the invention.
Fig. 2 is that magnetite is arranged on the schematic diagram in the yoke iron-clad.
Fig. 3 arranges the schematic diagram of front reed in framework.
The scheme of installation that Fig. 4 is base and carrier.
Embodiment
Below in conjunction with accompanying drawing and example, the present invention is elaborated.
As shown in the figure, the anti-shake motor of a kind of optics, comprise base 1, with the yoke iron-clad 6 that base 1 is equipped with, be provided with magnetite 5 and the lens carrier 4 that is arranged with coil 3 in yoke iron-clad 6, be provided with rear reed 2 between lens carrier 4 and base 1, described yoke iron-clad 6 is square structure, the yoke iron-clad 6 that it is characterized in that described square structure is arranged with four groups of magnetites 5, and lens carrier 4 external symmetrys are provided with four coils 3, and each coil 3 is corresponding with one group of magnetite 5 position.As shown in the figure, this coil is between magnetite and lens carrier 4, and coil and magnetite arrange in vertical direction.Also be provided with a pcb board 9 in base 1, this pcb board 9 is provided with four control ends, and each control end is electrically connected to a coil 3, and this pcb board 9 also is provided with external pin 10.The front end of yoke iron-clad also is provided with a framework 8, is provided with front reed 7 between yoke iron-clad 6 and framework 8.Be provided with insulating trip between pcb board 9 and yoke iron-clad 6.Described four groups of magnetites divide on four angles that are located at described yoke iron-clad, and every group of magnetite comprises upper and lower two magnetites, and four magnetites that are positioned at top are a certain polarity, and four magnetites that are positioned at below are opposite polarity.
According to a preferred embodiment of the invention, described four groups of magnetites are arranged in four angles of yoke iron-clad, two blocks of magnetites that arrange before and after every group of magnetite comprises.Also can be designed as the same magnetite between two blocks of magnetites, be designed to the two poles of the earth and magnetize.The present invention is divided into two-layer by eight blocks of magnetites of four jiaos, the polarity of the magnetic field of ground floor is all by the coil sides N utmost point, by the yoke side, is the S utmost point, and the polarity of the magnetic field of the second layer is all by the coil sides S utmost point, by the yoke side, be the N utmost point, the two ends of the U-shaped structure of coil the are corresponding respectively N utmost point and the S utmost point of magnetite.Because in the time of the U-shaped coil electricity, the direction of current at two ends is contrary, so need corresponding different polarity.
The present invention is respectively equipped with a magnetite in four angles of the yoke iron-clad of described square structure, and outside lens carrier, four coils corresponding with described four groups of magnetites is set, and four coils are connected with external control module by a control end of pcb board respectively.External like this control module passes into four coils by electric current, make generation power in its magnetic field produced at each self-corresponding magnetite, by regulating four size of current in coil, make four coils produce four equal-sized power, because four coils are symmetrical arranged, therefore promote camera lens carrier balance and move.Therefore the invention has the advantages that anti-shudder performance is good, improved the stability of lens carrier motion.
Motor in the present invention has four groups of coils, 8 blocks of magnetites, and the magnetite that the polarity of magnetite is sustained height is one group of polarity, four groups of magnetites of another height are opposite polarity.In theory four groups of coils impedance phase with, electric current is identical, in the identical situation in magnetic field, the thrust that four groups of coils produce is also consistent, also just means that the power of carrier in motion process is also consistent, thereby the direction of carrier movement and be highly also consistent.When the optics anti-trembling function is opened,, due to the shooting in motion process, there is certain shake in four groups of coils, in order to eliminate shake, can carry out four groups of coil electricities and carry out Current Control, reach the remedial action in dither process.For example, at the center of four coils, Hall element is set respectively and is detected, test the position relationship of itself and magnetite, in order to regulate respectively the electric current of four groups of coils according to the actual motion situation, make the motor stable action, eliminate shake.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that the concrete enforcement of the present invention is confined to above-mentioned these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. the anti-shake motor of optics, comprise base, the yoke iron-clad be equipped with base, be provided with magnetite and the lens carrier that is arranged with coil in the yoke iron-clad, be provided with rear reed between lens carrier and base, described yoke iron-clad is square structure, it is characterized in that the yoke iron-clad of described square structure is arranged with four groups of magnetites, the lens carrier external symmetry is provided with four coils, and each coil is corresponding with one group of magnetite position.
2. by lens CD-ROM drive motor claimed in claim 1, it is characterized in that: the gap between described coil and magnetite is not more than 0.1mm.
3. by lens CD-ROM drive motor claimed in claim 1, it is characterized in that in base also being provided with a pcb board, this pcb board is provided with four control ends, and each control end is electrically connected to a coil, and this pcb board also is provided with external pin.
4. by lens CD-ROM drive motor claimed in claim 1, it is characterized in that: the front end of yoke iron-clad also is provided with a framework, is provided with front reed between yoke iron-clad and framework.
5. by lens CD-ROM drive motor claimed in claim 1, it is characterized in that: described four groups of magnetites divide on four angles that are located at described yoke iron-clad, every group of magnetite comprises upper and lower two magnetites, and four magnetites that are positioned at top are a certain polarity, and four magnetites that are positioned at below are opposite polarity.
6. by lens CD-ROM drive motor claimed in claim 1, it is characterized in that: between pcb board and yoke iron-clad, be provided with insulating trip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103842740A CN103454750A (en) | 2013-08-29 | 2013-08-29 | Optical anti-vibration motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103842740A CN103454750A (en) | 2013-08-29 | 2013-08-29 | Optical anti-vibration motor |
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| CN103454750A true CN103454750A (en) | 2013-12-18 |
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| CN2013103842740A Pending CN103454750A (en) | 2013-08-29 | 2013-08-29 | Optical anti-vibration motor |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283396A (en) * | 2014-10-21 | 2015-01-14 | 深圳市世尊科技有限公司 | Voice coil motor for achieving optical vibration prevention through transverse movement |
| CN104993668A (en) * | 2015-06-26 | 2015-10-21 | 爱佩仪光电技术（深圳）有限公司 | Anti-magnetic-interference optical anti-vibration voice coil motor and manufacturing method therefor |
| CN105071627A (en) * | 2015-08-26 | 2015-11-18 | 安徽锋德兴泰电子科技有限公司 | Novel anti-vibration motor |
| CN105099119A (en) * | 2015-09-25 | 2015-11-25 | 爱佩仪光电技术（深圳）有限公司 | Optical anti-vibration voice coil motor capable of changing tilt shift centre and assembly method thereof |
| WO2016033772A1 (en) * | 2014-09-04 | 2016-03-10 | 厦门新鸿洲精密科技有限公司 | Ois coil structure of anti-shake voice coil motor and machining process for ois coil structure |
| CN105446053A (en) * | 2014-09-23 | 2016-03-30 | 三星电子株式会社 | Camera lens module |
| CN105511048A (en) * | 2015-12-29 | 2016-04-20 | 上海比路电子有限公司 | Optical anti-shake driver |
| CN105739052A (en) * | 2016-03-23 | 2016-07-06 | 宁波金诚泰电子有限公司 | Optical image stabilization voice coil motor |
| US9703068B2 (en) | 2013-04-19 | 2017-07-11 | Hong Kong Applied Science and Technology Research Institute, Co., Ltd. | Lens moving apparatus |
| CN107092066A (en) * | 2016-02-17 | 2017-08-25 | 日本电产三协株式会社 | Optical unit with shake correcting function |
| WO2017152385A1 (en) * | 2016-03-09 | 2017-09-14 | 东莞佩斯讯光电技术有限公司 | Miniature five-axis optical anti-vibration voice coil motor structure with resistance to magnetic interference |
| CN107707097A (en) * | 2017-10-23 | 2018-02-16 | 信利光电股份有限公司 | Voice coil motor and its camera device applied |
| US9910241B2 (en) | 2013-04-19 | 2018-03-06 | Hong Kong Applied Science & Technology Research Institute Co., Ltd. | Lens moving apparatus |
| US10225475B2 (en) | 2015-06-26 | 2019-03-05 | Ap Photonices (Shenzhen) Limited | Magnetic interference-resistant optical image stabilization voice coil motor and its method of manufacturing |
| CN112965317A (en) * | 2021-02-26 | 2021-06-15 | 北京可利尔福科技有限公司 | Optical anti-shake motor and camera module |
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| CN102629815A (en) * | 2011-02-07 | 2012-08-08 | Lg伊诺特有限公司 | Multifunctional voice coil motor |
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| CN201107449Y (en) * | 2007-10-26 | 2008-08-27 | 德昌电机(深圳)有限公司 | Camera lens drive apparatus |
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| CN101216589A (en) * | 2008-01-16 | 2008-07-09 | 张超 | Lens actuating device |
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| CN101997390A (en) * | 2009-08-25 | 2011-03-30 | 大立光电股份有限公司 | Actuator |
| CN102043226A (en) * | 2009-10-20 | 2011-05-04 | 思考电机（上海）有限公司 | Lens driving device, automatic focusing camera function unit and mobile phone |
| CN102062926A (en) * | 2009-11-17 | 2011-05-18 | 台湾东电化股份有限公司 | Lens driving device |
| CN102375292A (en) * | 2010-08-20 | 2012-03-14 | 林小军 | Device and actuator for controlling inclination or rotation center of optical system |
| CN102629815A (en) * | 2011-02-07 | 2012-08-08 | Lg伊诺特有限公司 | Multifunctional voice coil motor |
| CN203502646U (en) * | 2013-08-29 | 2014-03-26 | 上海比路电子有限公司 | Optical anti-vibration motor |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9910241B2 (en) | 2013-04-19 | 2018-03-06 | Hong Kong Applied Science & Technology Research Institute Co., Ltd. | Lens moving apparatus |
| US9703068B2 (en) | 2013-04-19 | 2017-07-11 | Hong Kong Applied Science and Technology Research Institute, Co., Ltd. | Lens moving apparatus |
| WO2016033772A1 (en) * | 2014-09-04 | 2016-03-10 | 厦门新鸿洲精密科技有限公司 | Ois coil structure of anti-shake voice coil motor and machining process for ois coil structure |
| CN105446053A (en) * | 2014-09-23 | 2016-03-30 | 三星电子株式会社 | Camera lens module |
| CN104283396A (en) * | 2014-10-21 | 2015-01-14 | 深圳市世尊科技有限公司 | Voice coil motor for achieving optical vibration prevention through transverse movement |
| CN104993668A (en) * | 2015-06-26 | 2015-10-21 | 爱佩仪光电技术（深圳）有限公司 | Anti-magnetic-interference optical anti-vibration voice coil motor and manufacturing method therefor |
| US10225475B2 (en) | 2015-06-26 | 2019-03-05 | Ap Photonices (Shenzhen) Limited | Magnetic interference-resistant optical image stabilization voice coil motor and its method of manufacturing |
| CN105071627A (en) * | 2015-08-26 | 2015-11-18 | 安徽锋德兴泰电子科技有限公司 | Novel anti-vibration motor |
| CN105099119A (en) * | 2015-09-25 | 2015-11-25 | 爱佩仪光电技术（深圳）有限公司 | Optical anti-vibration voice coil motor capable of changing tilt shift centre and assembly method thereof |
| CN105099119B (en) * | 2015-09-25 | 2018-06-26 | 爱佩仪光电技术（深圳）有限公司 | It is a kind of to change the optical anti-vibration voice coil motor and its assembly method for moving axis center |
| CN105511048A (en) * | 2015-12-29 | 2016-04-20 | 上海比路电子有限公司 | Optical anti-shake driver |
| CN107092066A (en) * | 2016-02-17 | 2017-08-25 | 日本电产三协株式会社 | Optical unit with shake correcting function |
| WO2017152385A1 (en) * | 2016-03-09 | 2017-09-14 | 东莞佩斯讯光电技术有限公司 | Miniature five-axis optical anti-vibration voice coil motor structure with resistance to magnetic interference |
| CN105739052A (en) * | 2016-03-23 | 2016-07-06 | 宁波金诚泰电子有限公司 | Optical image stabilization voice coil motor |
| CN107707097A (en) * | 2017-10-23 | 2018-02-16 | 信利光电股份有限公司 | Voice coil motor and its camera device applied |
| CN112965317A (en) * | 2021-02-26 | 2021-06-15 | 北京可利尔福科技有限公司 | Optical anti-shake motor and camera module |
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Address after: Tianchen road Qingpu Industrial Park Qingpu District of Shanghai City, No. 2009, 201799 Applicant after: Cyprus Shanghai electronic Limited by Share Ltd Address before: 201706 Shanghai city Qingpu district Song Ying Songze Avenue Road No. 6658 Applicant before: Shanghai Bilu Electronic Co., Ltd. |
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