CN105022205A - Ultrathin optical anti-shake voice coil motor - Google Patents
Ultrathin optical anti-shake voice coil motor Download PDFInfo
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- CN105022205A CN105022205A CN201510479939.5A CN201510479939A CN105022205A CN 105022205 A CN105022205 A CN 105022205A CN 201510479939 A CN201510479939 A CN 201510479939A CN 105022205 A CN105022205 A CN 105022205A
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- coil motor
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- 230000003287 optical effect Effects 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 21
- 241000676840 Elater Species 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000011889 copper foil Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 206010044565 Tremor Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The invention discloses an ultrathin optical anti-shake voice coil motor. The ultrathin optical anti-shake voice coil motor comprises a shell, a lens base, a plurality of magnets, a focusing coil and a translation coil, wherein the shell is composed of a lower cover and a metal magnetic yoke; the lens base is arranged in the shell; the plurality of magnets are arranged on the inner wall of the shell; the focusing coil is interacted with the magnets so as to control the lens base to focus; the translation coil is interacted with the magnets so as to control the lens base to move in a plane vertical to the optical axis of a lens; the translation coil is arranged on a flexible circuit board; a through hole for the lens base to freely pass is arranged in the centre of the flexible circuit board; the flexible circuit board is supported over the lens base through a plurality of elastic columns fixed with the lower cover; the outer ring of an upper spring piece is fixed with the flexible circuit board; the inner ring of the upper spring piece is fixed with the lens base; and the outer ring and the inner ring are connected through an elastic filament. Because of being small in volume and thin in thickness, the ultrathin optical anti-shake voice coil motor disclosed by the invention is applicable to conventional ordinary electronic products and particularly applicable to ultrathin electronic products.
Description
Technical field
The present invention relates to the voice coil motor for camera module.
Background technology
Emerging in an endless stream of current all kinds mobile terminal product, respective function is also in continuous evolution, the requirement of people to various mobile terminal hardware facility is also improving constantly, such as, the pixel of current panel computer, smart mobile phone also can reach the level of digital camera, and thus people more gladly use panel computer or smart mobile phone to go to realize camera function.
But the effect of taking pictures of existing panel computer, smart mobile phone is more inferior than digital camera all the time, because digital camera overall volume is more much larger than smart mobile phone, its advantage is that inside can be provided with the physical construction of relative complex, for control camera lens various dimensions motion, make digital camera can realize optical anti-vibration (OIS) and move axle photograph technology.And panel computer, smart mobile phone are limited to its size, the extending space of camera module is limited, unlikely goes the physical construction arranging some complexity to realize the various dimensions motion of camera lens.
Therefore, some manufacturer adds the function such as auto-focusing and even optical anti-vibration in cell-phone camera module, to realize best effect of taking pictures.But current all kinds of motor all exists respective shortcoming, as volume production difficulty is large, be not easy to motor drive circuit coupling, power consumption is large, and volume is bigger, excessive height etc.
Summary of the invention
The present invention is in order to solve the problem of above-mentioned prior art, a kind of ultra thin optical stabilization voice coil motor is proposed, comprise the housing become with metallic magnetic yoke piece by lower cover, be located at the lens mount in housing, be located at the multiple magnetites in inner walls, interact with magnetite and control the focusing coil that lens mount focuses, interact with magnetite and control the translation coil of lens mount at the move in plane perpendicular to camera lens optical axis, described translation coil is arranged on one piece of flexible PCB, described flexible PCB center is provided with and can supplies the freely through through hole of lens mount, flexible PCB is supported on the top of lens mount by the elastic that many are fixed with lower cover, outer ring and the described flexible PCB of one piece of upper spring leaf are fixed, inner ring and lens mount are fixed, outer ring is connected by elater with inner ring.On this, spring leaf needs larger horizontal direction elasticity coefficient.
When focusing coil electricity, described magnetite produces the acting force of a parallel optical axis to lens mount, makes lens mount realize automatic focusing function along optical axis direction is movable; When translation coil electricity on flexible PCB, described magnetite produces a horizontal thrust to translation coil together with upper spring leaf and lens mount and camera lens, makes lens mount mobile perpendicular to the plane of optical axis produces.
The number of described magnetite is four, the corresponding described focusing coils of four magnetites interior pendant polar identical, metal yoke can shield shell inner and outer magnetic field, and lens mount lower end can be provided with lower spring sheet, lower spring sheet needs less horizontal direction elasticity coefficient, also can not need lower spring sheet.
The present invention not only can realize focusing, the anti-trembling function of camera lens, and due to the ingenious setting of its structure, the size of this voice coil motor is accomplished minimum, reached the dimensions of the ultrathin electronic product such as existing ultra thin handset, ultra-thin notebook.And be easy to mate with driving circuit, low in energy consumption, volume production preferably.
Accompanying drawing explanation
Fig. 1 is the explosive view of invention;
Fig. 2 is cut-open view of the present invention.
Embodiment
Below in conjunction with drawings and Examples, structural principle of the present invention is described.
Fig. 1, Fig. 2 give a preferred embodiment of the present invention, and the voice coil motor in figure comprises lower cover 6, metal yoke 1, and the lens mount 8 of camera lens is housed, focusing coil 4, translation coil 3 and four magnet, 5, four elastics 7, upper spring leaf 2.
Wherein lower cover 6 and metal yoke 1 constitute the housing of voice coil motor, lens mount 8 is arranged in housing, it is peripheral that focusing coil 4 is sleeved on lens mount 8, magnetite 5 is arranged in inner walls, focusing coil 4 and magnetite 5 interact and control lens mount 8 and realize focusing, translation coil 3 is positioned at above lens mount 8, and interacting with magnetite 5 controls lens mount 8 at the move in plane perpendicular to camera lens optical axis.
Translation coil 3 of the present invention is arranged on one piece of flexible PCB, very thin thickness, volume is very little, translation coil 3 is provided with 4, be arranged on evenly and at intervals on flexible PCB, the center of flexible PCB is provided with and can supplies the freely through through hole of lens mount, and such flexible PCB can not affect the motion of lens mount.Flexible PCB is supported on the top of lens mount 8 by the elastic 7 that many are fixed with lower cover, in interval between below metal yoke 1 and above magnetite, outer ring and the flexible PCB of upper spring leaf 2 are fixed, inner ring and lens mount 8 are fixed, outer ring is connected by elater with inner ring, flexible PCB is supported by flexible column, then by upper spring leaf, lens mount is suspended in housing, the flexible column of the present embodiment is provided with 4, employing metal is made, therefore flexible column does not have any ductility in stretching, but can free folding/reduction, or with the tie point with lower cover for point of fixity, the one end be connected with flexible PCB is deflected around this point of fixity.When coil electricity on flexible PCB, can produce and promote lens mount perpendicular to the acting force produced in the plane of optical axis in all directions, realize anti-trembling function.
Above-mentioned translation coil can adopt PCB coil, it can also be the PCB coil utilizing flexible PCB itself to be formed, shaping structure is made of one with flexible PCB, because PCB inherently multilayer, it is the structure stacked up by Copper Foil and insulation course, Copper Foil can be etched into arbitrary shape, can be etched to coil shape.By via hole conducting between two-layer Copper Foil, multilayer copper foil is added up and to be communicated with by via hole, just can use as coil, is finally formed and PCB coil that flexible PCB is integrated, and PCB coil can reduce the volume of voice coil motor further.
In the present embodiment, metal yoke 1 and lower cover are square, the housing of composition is a cube cylindricality, therefore, flexible PCB is also roughly square, and four translation coils 3 lay respectively on four angles of flexible PCB, magnetite 5 is also arranged on inside four seamed edges of cube rod accordingly, be positioned at immediately below translation coil 3, magnetite 5 is all identical towards the one side polarity of translation coil 3, is all set to S pole.In order to fix magnetite 5 on four angles, four support columns are extended towards metal yoke in four angles of the present embodiment lower cover, two support columns facing each other are respectively equipped with an opposite face, are used for fixing magnetite 5.The position relationship of this coil and magnetite 5, can accomplish minimum by the size of voice coil motor, minimum dimension is approximately 8.5mm*8.5mm*2.8mm, realizes the structural design of ultrathin motor.
The present embodiment can also have other to be out of shape, and be arranged on by magnetite 5 on four inwalls of metal yoke 1, then translation coil 3 is also arranged on the four edges of flexible PCB accordingly, and such volume can be relatively larger.
In other embodiments, housing can also be cylindrical, now, flexible PCB also best relative set becomes annular, four translation coils 3 are distributed on the flexible PCB of annular, and in 90 degree separately, magnetite 5 is also correspondingly distributed on the inwall of metal yoke 1.
Translation coil in above-mentioned several embodiment is separate, be positioned at two translation coils connected in series on diagonal line, and electric current during energising to flow through direction contrary, so PCB translation coil 3 has two groups of coils, when PCB translation coil 3 is energized, under the magnetic fields of magnetite 5, the thrust perpendicular to optical axis is produced to lens mount 8, lens mount 8 planar can be moved being parallel to focusing coil 11.Two groups of translation coils 3 can control camera lens and produce in 2 orthogonal directions and move horizontally, and in conjunction with the power being parallel to optical axis that diagonal angle coil produces lens mount, after comprehensive, voice coil motor of the present invention can control camera lens and moves on three degree of freedom.
The present invention can also bottom lens mount with one piece of lower spring sheet is set between lower cover to be connected them, also can not arrange.
The present invention is assemblied in four magnetites around coil by focusing coil and PCB translation fitting coils, can realize moving the focusing of camera lens and controllable levels, realize auto-focusing and optical anti-vibration function, and the volume of this voice coil motor very little, highly low, be easy to match with driving circuit.
Should be understood that, the above-mentioned description for specific embodiment is comparatively detailed, and therefore can not think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (9)
1. a ultra thin optical stabilization voice coil motor, comprise the housing become with metallic magnetic yoke piece by lower cover, be located at the lens mount in housing, be located at the multiple magnetites in inner walls, interact with magnetite and control the focusing coil that lens mount focuses, interact with magnetite and control the translation coil of lens mount at the move in plane perpendicular to camera lens optical axis, it is characterized in that: described translation coil is arranged on one piece of flexible PCB, described flexible PCB center is provided with and can supplies the freely through through hole of lens mount, flexible PCB is supported on the top of lens mount by the elastic that many are fixed with lower cover, outer ring and the described flexible PCB of one piece of upper spring leaf are fixed, inner ring and lens mount are fixed, outer ring is connected by elater with inner ring.
2. voice coil motor as claimed in claim 1, is characterized in that: described flexible PCB is provided with four uniform translation coils in interval, and described magnetite is provided with 4 pieces, and lay respectively at below each translation coil, the one side polarity that each magnetite faces translation coil is identical.
3. voice coil motor as claimed in claim 2, is characterized in that: described housing is cube cylindricality, and described translation coil and magnet lay respectively at inside four seamed edges of cube rod.
4. voice coil motor as claimed in claim 2, is characterized in that: described housing is cube cylindricality, and described translation coil and magnet lay respectively at inside four sides of cube rod.
5. the voice coil motor as described in claim 3 or 4, is characterized in that: four translation coils are separate, and is positioned at two translation coils connected in series on diagonal line.
6. voice coil motor as claimed in claim 2, is characterized in that: described housing is cylindrical.
7. the voice coil motor as described in claim 3 or 4, is characterized in that: be connected by one piece of lower spring sheet bottom described lens mount with between lower cover.
8. voice coil motor as claimed in claim 1, is characterized in that: described elastic adopts metal or plastics to make.
9. voice coil motor as claimed in claim 2, is characterized in that: described translation coil is PCB coil, or described translation coil is the PCB coil adopting described flexible PCB itself to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510479939.5A CN105022205B (en) | 2015-08-07 | 2015-08-07 | A kind of ultra thin optical stabilization voice coil motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510479939.5A CN105022205B (en) | 2015-08-07 | 2015-08-07 | A kind of ultra thin optical stabilization voice coil motor |
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| Publication Number | Publication Date |
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| CN105022205A true CN105022205A (en) | 2015-11-04 |
| CN105022205B CN105022205B (en) | 2018-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510479939.5A Active CN105022205B (en) | 2015-08-07 | 2015-08-07 | A kind of ultra thin optical stabilization voice coil motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101509A (en) * | 2016-08-08 | 2016-11-09 | 成都为帆斯通科技有限公司 | A kind of Anti-seismic supervising device |
| WO2021047609A1 (en) * | 2019-09-11 | 2021-03-18 | 常州市瑞泰光电有限公司 | Lens module and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604063A (en) * | 2008-06-13 | 2009-12-16 | 富准精密工业(深圳)有限公司 | Camera structure |
| CN102819086A (en) * | 2011-06-09 | 2012-12-12 | 松下电器产业株式会社 | Lens actuator |
| CN103792758A (en) * | 2012-10-26 | 2014-05-14 | 阿尔卑斯电气株式会社 | Lens driving device |
| CN103901701A (en) * | 2012-12-26 | 2014-07-02 | 三美电机株式会社 | Lens driving apparatus, camera module, and camera-equipped mobile terminal |
| CN104020546A (en) * | 2014-06-19 | 2014-09-03 | 深圳市世尊科技有限公司 | Focusing motor capable of achieving optical zooming and optical vibration prevention at the same time |
| CN104133282A (en) * | 2013-05-02 | 2014-11-05 | 闳晖实业股份有限公司 | Auto-focusing actuator driving structure |
| CN104204934A (en) * | 2012-02-14 | 2014-12-10 | 三美电机株式会社 | Lens driving device and camera |
| CN104238069A (en) * | 2013-06-17 | 2014-12-24 | 台湾东电化股份有限公司 | Lens driving device with 3d elastic support structure |
| CN204856001U (en) * | 2015-08-07 | 2015-12-09 | 深圳市世尊科技有限公司 | Ultra -thin optics anti -shake voice coil motor |
-
2015
- 2015-08-07 CN CN201510479939.5A patent/CN105022205B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604063A (en) * | 2008-06-13 | 2009-12-16 | 富准精密工业(深圳)有限公司 | Camera structure |
| CN102819086A (en) * | 2011-06-09 | 2012-12-12 | 松下电器产业株式会社 | Lens actuator |
| CN104204934A (en) * | 2012-02-14 | 2014-12-10 | 三美电机株式会社 | Lens driving device and camera |
| CN103792758A (en) * | 2012-10-26 | 2014-05-14 | 阿尔卑斯电气株式会社 | Lens driving device |
| CN103901701A (en) * | 2012-12-26 | 2014-07-02 | 三美电机株式会社 | Lens driving apparatus, camera module, and camera-equipped mobile terminal |
| CN104133282A (en) * | 2013-05-02 | 2014-11-05 | 闳晖实业股份有限公司 | Auto-focusing actuator driving structure |
| CN104238069A (en) * | 2013-06-17 | 2014-12-24 | 台湾东电化股份有限公司 | Lens driving device with 3d elastic support structure |
| CN104020546A (en) * | 2014-06-19 | 2014-09-03 | 深圳市世尊科技有限公司 | Focusing motor capable of achieving optical zooming and optical vibration prevention at the same time |
| CN204856001U (en) * | 2015-08-07 | 2015-12-09 | 深圳市世尊科技有限公司 | Ultra -thin optics anti -shake voice coil motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101509A (en) * | 2016-08-08 | 2016-11-09 | 成都为帆斯通科技有限公司 | A kind of Anti-seismic supervising device |
| WO2021047609A1 (en) * | 2019-09-11 | 2021-03-18 | 常州市瑞泰光电有限公司 | Lens module and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105022205B (en) | 2018-09-07 |
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Effective date of registration: 20191031 Address after: 610000 No.2, Qingyun North Road, Jinhua Town, Xinjin County, Chengdu City, Sichuan Province Patentee after: Chengdu 100 billion Photoelectric Technology Co.,Ltd. Address before: Dragon Street Longgang Huangge Road District of Shenzhen City, Guangdong province 518000 No. 441 Longgang Tian An Digital Innovation Park Building 1 B1403-2 Patentee before: SHENZHEN STR TECHNO Ltd. |
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Effective date of registration: 20210113 Address after: 611435 a3-1 / a3-2 / a3-5 / a3-6, 518 Qingyun North Road, Jinhua Town, Xinjin County, Chengdu City, Sichuan Province Patentee after: Chengdu Yixun Photoelectric Technology Co.,Ltd. Address before: No.2, Qingyun North Road, Jinhua Town, Xinjin County, Chengdu, Sichuan 610000 Patentee before: Chengdu 100 billion Photoelectric Technology Co.,Ltd. |
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Effective date of registration: 20240117 Address after: Room 301, Building 2, No. 88 Shengtong Street, Chengdu High tech Zone, China (Sichuan) Pilot Free Trade Zone, Chengdu City, Sichuan Province, 610000 Patentee after: Guoxing Chaogan (Chengdu) Optoelectronic Technology Co.,Ltd. Address before: 611435 a3-1 / a3-2 / a3-5 / a3-6, 518 Qingyun North Road, Jinhua Town, Xinjin County, Chengdu City, Sichuan Province Patentee before: Chengdu Yixun Photoelectric Technology Co.,Ltd. |
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