CN102208857A - Voice coil motor actuator and image capture apparatus - Google Patents
Voice coil motor actuator and image capture apparatus Download PDFInfo
- Publication number
- CN102208857A CN102208857A CN2010101340750A CN201010134075A CN102208857A CN 102208857 A CN102208857 A CN 102208857A CN 2010101340750 A CN2010101340750 A CN 2010101340750A CN 201010134075 A CN201010134075 A CN 201010134075A CN 102208857 A CN102208857 A CN 102208857A
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- voice coil
- coil motor
- motor actuator
- movable component
- shell fragment
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- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention relates to a voice coil motor actuator which comprises a movable component. The outer wall of the movable component is winded with a loop. The voice coil motor actuator further comprises a cylindrical housing and a magnet fixed on the inner wall of the cylindrical housing. The movable component is movably provided in the cylindrical housing. The magnet is arranged around the movable component so that an axial displacement happens to the movable component under the effect of the magnet and the loop when the loop is in an electrifying process. Compared to the prior art, the voice coil motor actuator in the invention omits a fixed cylinder, thereby simplifying the whole structure of the voice coil motor actuator. The structure of the voice coil motor actuator is more compact and the assembly efficiency is substantially improved. The invention also relates to an image capture image capture apparatus using the voice coil motor actuator.
Description
Technical field
The present invention relates to voice coil motor actuator and use the image-taking device of this voice coil motor actuator, relate in particular to a kind of compactness simple for structure and packaging efficiency high voice coil motor actuator and image-taking device.
Background technology
Voice coil motor actuator belongs to a kind of of linear DC motor, is the actuator with direct driving, fixed journey system characteristic that utilizes permanent magnet and coil to constitute.At present, the camera lens module with automatic focusing or zoom function that uses in portable electron devices such as mobile phone and notebook computer generally adopts voice coil motor actuator to be used as the power unit of its Optical devices displacement.
Existing voice coil motor actuator generally all includes a cylindrical case, and is positioned at the fixedly fitted tube of this cylindrical case and one and is installed in this fixedly movable component of fitted tube movably.This movable component outer periphery is equipped with coil, this fixedly the fitted tube inwall be provided with magnet.Under the situation of energising, this voice coil motor actuator drives this movable component by the interaction force between magnet and the hot-wire coil and moves reciprocatingly.
Yet, along with of the development of portable electron devices such as mobile phone and notebook computer towards miniaturization, its volume requirement to the power unit in the camera lens module is also more and more littler, and existing voice coil motor actuator is because its structure is too fat to move, the complicated efficient of assembling process is lower, it is difficult to towards the trend development of miniaturization more, and this has just limited its application in portable electronic installations such as mobile phone or notebook computer to a great extent.
Summary of the invention
In view of this, provide high voice coil motor actuator of a kind of compactness simple for structure and packaging efficiency and image-taking device real for necessary.
A kind of voice coil motor actuator, it comprises a movable component, be wound with coil on the outer wall of this movable component, this voice coil motor actuator further comprises a cylindrical case and is fixed in magnet on this cylindrical case inwall, this movable component is installed in this cylindrical case versatilely, in galvanization, axial displacement takes place to this magnet in this movable component under the effect of this magnet and coil around this movable component setting so that at this coil.
A kind of image-taking device, it comprises a set of lenses and an image sensor, this image sensor is arranged on the picture side of this set of lenses, this image-taking device further includes an aforesaid voice coil motor actuator, this set of lenses is housed in this movable component, this load bearing seat and this cylindrical case are sealed and matched mutually this movable component, magnet are accommodated wherein, and under the effect of this magnet and coil, this movable component drives this set of lenses generation axial displacement.
Compared with prior art, voice coil motor actuator provided by the present invention has omitted fixedly fitted tube, magnet is set directly on the inwall of cylindrical case, thereby simplified the structure of whole voice coil motor actuator, make the structure of voice coil motor actuator provided by the present invention compact more, packaging efficiency promotes greatly, and the volume of voice coil motor actuator is less.
Description of drawings
Fig. 1 is the stereogram of the voice coil motor actuator structure that provides of the embodiment of the invention.
Fig. 2 is the exploded view of the voice coil motor actuator structure that provides of the embodiment of the invention.
Fig. 3 is the profile along the III-III line cutting of Fig. 1.
Fig. 4 is that the cylindrical case and the magnet of voice coil motor actuator provided by the present invention is the schematic perspective view of circular configuration.
Fig. 5 is the structural representation of image-taking device provided by the present invention.
The main element symbol description
Voice coil motor actuator 100,240
Square top board 11
Fixed part 31
Movable component 60,241
Movable accommodating cylinder 61
Center through hole 611
Conductive coil 62,243
Following shell fragment 70
Part sheet 71 on the left side
Through hole 81
Image-taking device 200
Lens fitted tube 210
Set of lenses 220
Image sensor 230
Embodiment
See also Fig. 1 to Fig. 3, this voice coil motor actuator 100 that the embodiment of the invention provides, this voice coil motor actuator 100 are used for driving camera lens module (figure does not show) motion.
This voice coil motor actuator 100 comprises cylindrical case 10, last shell fragment 30, magnet 40, movable component 60, following shell fragment 70 and load bearing seat 80.
This cylindrical case 10 includes a square top board 11 and four side plates 12 that are arranged at square top board 11 4 limits, and this square top board 11 and four side plates 12 surround a receiving space and accommodate this movable component 60.Be respectively arranged with a bar magnet 40 on the inwall of these four side plates 12, these four bar magnets 40 are used for producing magnetic field in this cylindrical case 10.Geometric center at the square top board 11 of this cylindrical case 10 further is limited with one first light hole 13 so that ambient light enters in this cylindrical case 10 thus.
Understandable, should go up shell fragment 30 also can be fixed on this square top board 11 by other mode, for example the fixed part 31 that will go up shell fragment 30 by modes such as set screw or some glue are fixing is fixed on this square top board 11, certainly, on this, can also be provided with between shell fragment 30 and this square top board 11 pad make should on keep certain spacing between shell fragment 30 and this square top board 11.
This movable component 60 has a movable accommodating cylinder 61 and is wrapped in the conductive coil 62 of these movable accommodating cylinder 61 outer walls.Wherein, this movable accommodating cylinder 61 is a square structure, it has a roughly rounded center through hole with internal thread 611, this center through hole 611 is used for accommodating camera lens module (figure does not show), the external thread bolt connection of the internal thread of this movable accommodating cylinder 61 and camera lens module is to fix as one this camera lens module and this movable accommodating cylinder 61.
The structural similarity of the structure of following shell fragment 70 and last shell fragment 30, movable part and fixed part that it also has light hole and is provided with around this light hole, its difference is: this time shell fragment 70 is split-type design, it is made up of two parting sheet 71 on the left side and parting sheet 72 on the right side of being separated from each other, wherein this parts sheet 71 on the left side and has a left pin 711, and this parts sheet 72 on the right side and has a right pin 721.Two bursts 71,72 are electrically connected with the two ends of conductive coil 62 on this movable component 60 respectively about following shell fragment 70, be arranged on about this on two bursts left and right sides pin 711,721 respectively as electric current+/-to come be that this conductive coil 62 is carried electric currents to input terminal.
This movable component 60 by shell fragment on this 30 and down shell fragment about in the of 70 clamping and be contained in this cylindrical case 10, wherein the two ends of this movable component 60 respectively with this on the shell fragment 30 and movable part of shell fragment 70 is affixed mutually down, thereby make being contained in this cylindrical case 10 of this movable component 60 activities.
During use, by as electric current+/-left pin 711 of input terminal, right pin 721 carry electric currents to conductive coil 62, this moment, alive conductive coil 62 was subjected to the effect of power in the magnetic field that four bar magnets 40 around its setting form, and moved along its central axis direction thereby drive movable component 60.
Understandable, in the present invention, the cylindrical case 10 of this voice coil motor actuator 100 also can be other shape outside square, such as circle, and the magnet 40 that is fixed on the inwall of this cylindrical case 10 also is not limited to bar magnet 40, its quantity and shape also can be decided according to actual needs, for example, as shown in Figure 4, when cylindrical case 10 ' be is circular, a circular ring magnet of this magnet 40 ' can be set to be arranged on this rounded cylindrical shell 10 ' inwall on, certainly, with the load bearing seat 80 of this cylindrical case 10 ' match ' also can be circle.
As shown in Figure 5, the present invention also provides a kind of image-taking device 200, and this image-taking device 200 comprises lens fitted tube 210, set of lenses 220, image sensor 230 and aforesaid voice coil motor actuator 240.
This set of lenses 220 is contained in this lens fitted tube 210, and this lens fitted tube 210 is installed in the movable component 241 of this voice coil motor actuator 240.
Understandable, this set of lenses 220 can also directly be contained in this movable component 241.
This image sensor 230 is contained in this load bearing seat 244, and this load bearing seat 244 matches with this cylindrical case 245 this movable component 241, magnet 242 are accommodated wherein.Wherein this load bearing seat 244 and these cylindrical case 245 sealing and fixing.
During use, carry electric current to the conductive coil 243 that is wrapped on this movable component 241, under the effect of magnet 242 and conductive coil 243, this movable component 241 drives the set of lenses 220 that is contained in wherein axial displacement takes place.
Understandable, this image sensor 230 also can not be housed in this load bearing seat 244, the lens barrel that this image-taking device 200 may further include a microscope base and cooperatively interacts with this microscope base, wherein this microscope base is used for accommodating this image sensor 230, this lens barrel is used for accommodating this voice coil motor actuator, is sealed and matched mutually between this microscope base and this lens barrel.
In addition, those skilled in the art also can do other variation in spirit of the present invention.So the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (10)
1. voice coil motor actuator, it comprises a movable component, be wound with coil on the outer wall of this movable component, it is characterized in that: this voice coil motor actuator further comprises a cylindrical case and is attached at magnet on this cylindrical case inwall, this movable component is installed in this cylindrical case versatilely, in galvanization, axial displacement takes place to this magnet in this movable component under the effect of this magnet and coil around this movable component setting so that at this coil.
2. voice coil motor actuator as claimed in claim 1, it is characterized in that: this cylindrical case has a top board and is arranged at the side plate of this roof perimeter, this top board and side plate surround a receiving space and are used for accommodating this movable component, this magnet is fixed on this side plate, and the geometric center of this top board further is limited with one first light hole so that ambient light enters in this cylindrical case thus.
3. voice coil motor actuator as claimed in claim 2, it is characterized in that: this voice coil motor actuator comprises that further one is gone up shell fragment and a following shell fragment, should go up shell fragment and this time shell fragment is contained in this cylindrical case also with the clamping up and down of this movable component, upward shell fragment and this time shell fragment have fixed part and movable part respectively, wherein this fixed part and this cylindrical case are affixed mutually, and this movable part and this movable component are affixed mutually.
4. voice coil motor actuator as claimed in claim 3 is characterized in that: shell fragment is between this top board and this magnet on this, and the fixed part that this magnet will be gone up shell fragment is resisted against on this top board so that shell fragment on this is fixed.
5. voice coil motor actuator as claimed in claim 4 is characterized in that: further be provided with a pad on this between the fixed part of shell fragment and this top board.
6. as each described voice coil motor actuator of claim 3 to 5, it is characterized in that: this time shell fragment independently parts sheet on the left side by two and parts sheet on the right side and constitute, this part sheet on the left side and part on the right side sheet respectively as electric current+/-to come be that this conductive coil is carried electric current to input terminal.
7. voice coil motor actuator as claimed in claim 6, it is characterized in that: this voice coil motor actuator further includes a load bearing seat that matches with this cylindrical case, and this load bearing seat matches with this cylindrical case shell fragment, magnet, movable component and following shell fragment on this are contained in wherein.
8. voice coil motor actuator as claimed in claim 1 is characterized in that: this cylindrical case is made by magnetic shielding material.
9. image-taking device, it comprises a set of lenses and an image sensor, this image sensor is arranged on the picture side of this set of lenses, it is characterized in that: this image-taking device further includes a voice coil motor actuator as claimed in claim 7, this set of lenses is housed in this movable component, this load bearing seat and this tubular cylindrical case are sealed and matched mutually this movable component, magnet are accommodated wherein, and under the effect of this magnet and coil, this movable component drives this set of lenses generation axial displacement.
10. image-taking device as claimed in claim 9, it is characterized in that: this image-taking device further includes a microscope base and lens barrel, this microscope base is used for accommodating this image sensor, and this lens barrel is used for accommodating this voice coil motor actuator, and this microscope base and lens barrel are sealed and matched mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101340750A CN102208857A (en) | 2010-03-29 | 2010-03-29 | Voice coil motor actuator and image capture apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101340750A CN102208857A (en) | 2010-03-29 | 2010-03-29 | Voice coil motor actuator and image capture apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102208857A true CN102208857A (en) | 2011-10-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101340750A Pending CN102208857A (en) | 2010-03-29 | 2010-03-29 | Voice coil motor actuator and image capture apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102208857A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166417A (en) * | 2011-12-09 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor and camera module using the same |
| CN104820329A (en) * | 2015-05-25 | 2015-08-05 | 联想(北京)有限公司 | Camera motor and electronic device |
| 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 |
| CN108683318A (en) * | 2018-07-10 | 2018-10-19 | 厦门新鸿洲精密科技有限公司 | A kind of superposing type voice coil motor and its assemble method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2829242Y (en) * | 2005-10-14 | 2006-10-18 | 比亚迪股份有限公司 | Mobile phone camera lens medule set and mobile phone containing the mould set |
| CN101107769A (en) * | 2005-12-02 | 2008-01-16 | Lg伊诺特有限公司 | Lens driving motor and elastic member of the same |
| CN201018387Y (en) * | 2007-01-22 | 2008-02-06 | 泓记精密股份有限公司 | High-performance speech coil motor |
| CN101501330A (en) * | 2006-08-14 | 2009-08-05 | 罗斯蒙德公司 | Vibration power generation |
-
2010
- 2010-03-29 CN CN2010101340750A patent/CN102208857A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2829242Y (en) * | 2005-10-14 | 2006-10-18 | 比亚迪股份有限公司 | Mobile phone camera lens medule set and mobile phone containing the mould set |
| CN101107769A (en) * | 2005-12-02 | 2008-01-16 | Lg伊诺特有限公司 | Lens driving motor and elastic member of the same |
| CN101501330A (en) * | 2006-08-14 | 2009-08-05 | 罗斯蒙德公司 | Vibration power generation |
| CN201018387Y (en) * | 2007-01-22 | 2008-02-06 | 泓记精密股份有限公司 | High-performance speech coil motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166417A (en) * | 2011-12-09 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor and camera module using the same |
| CN104820329A (en) * | 2015-05-25 | 2015-08-05 | 联想(北京)有限公司 | Camera motor and electronic device |
| 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 |
| CN108683318A (en) * | 2018-07-10 | 2018-10-19 | 厦门新鸿洲精密科技有限公司 | A kind of superposing type voice coil motor and its assemble method |
| CN108683318B (en) * | 2018-07-10 | 2023-11-28 | 厦门新鸿洲精密科技有限公司 | Superimposed voice coil motor and assembly method thereof |
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Application publication date: 20111005 |