CN204287688U - A kind of voice coil motor being realized optical anti-vibration by pure translational movement - Google Patents
A kind of voice coil motor being realized optical anti-vibration by pure translational movement Download PDFInfo
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- CN204287688U CN204287688U CN201420808799.2U CN201420808799U CN204287688U CN 204287688 U CN204287688 U CN 204287688U CN 201420808799 U CN201420808799 U CN 201420808799U CN 204287688 U CN204287688 U CN 204287688U
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- lens mount
- stationary installation
- voice coil
- magnetite
- coil motor
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Abstract
The utility model discloses a kind of voice coil motor being realized optical anti-vibration by pure translational movement, comprise the housing become with metallic magnetic yoke piece by lower cover, be located at the lens mount in housing, be located at multiple magnetites of yoke inwall, 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, further comprises stationary installation, lens mount can move back and forth along optical axis relative to stationary installation, and lens mount is fixed on perpendicular to the stop means in a plane of optical axis, by the cooperation of stationary installation and stop means, the translation motion of auto-focusing part can be made can to carry out in a plane, any drift angle can not be produced, stabilization effect is very good.
Description
Technical field
The utility model relates to for the voice coil motor in electronic equipment accessory.
Background technology
Day by day universal along with smart mobile phone, the technical requirement of people to taking photograph of intelligent mobile phone is also more and more higher, expects that the effect of taking pictures of mobile phone can reach the level of digital camera.And digital camera can realize optical anti-vibration (OIS) and the function of moving axle photography is because it physical construction possessing relative complex is to control the various dimensions motion of camera lens, and the physical construction of this complexity cannot be applied on mobile phone, because the hardware of mobile phone itself and basis of software limit further developing of its camera.
And in order on the hardware and basis of software of mobile phone itself, how to improve the ability of taking pictures of its camera, be also the problem that the manufacturer of smart mobile phone is endeavouring to research and develop always, the manufacturer such as TDK, Mistumid all can produce the motor of band OIS function in the market.But the motor optical anti-vibration effect that they produce is all not ideal enough, such as when motor carries out translation motion, the impact of spring leaf and other acting forces can be subject to, the plane of its translation motion can not realize completely perpendicular to the optical axis of camera lens, capital produces certain drift angle, thus the effect that causes taking pictures is influenced, and existing motor also to there is pin too much, be not easy to carry out the defect such as mating with mobile phone circuit.
Summary of the invention
The purpose of this utility model is to solve Problems existing in above-mentioned technology, propose a kind of voice coil motor being realized optical anti-vibration by pure translational movement, comprise the housing become with metallic magnetic yoke piece by lower cover, the lens mount be located in housing, be located at yoke inwall multiple magnetites, with magnetite interacts control focusing coil that lens mount focuses, and magnetite interact and control the translation coil of lens mount at the move in plane perpendicular to camera lens optical axis.
Voice coil motor of the present utility model also comprises the stationary installation being arranged on lens mount periphery, and described lens mount can move back and forth along optical axis relative to stationary installation; Stationary installation comprises the Upper gasket and spring leaf of being located at lens mount two ends respectively, multiple inner spring blocks that inner ring is located at by described spring leaf are connected with lens mount, multiple outer spring blocks that outer ring is located at by described spring leaf are connected with Upper gasket respectively, are provided with the elater that lens mount can be made to move back and forth along optical axis relative to stationary installation between described inner spring sheet and outer spring sheet.Upper gasket comprises a square frame, and described square frame extends many support columns towards the direction of spring leaf, and described support column is connected respectively with the outer spring block of spring leaf.
The utility model also comprises and described stationary installation and metal yoke being fixed in the plane perpendicular to optical axis, makes this stationary installation and metal yoke in this plane, only drive lens mount and magnetite to carry out the stop means of the translation motion in all directions.Stop means comprises the iron plate being fixed on down and covering, and the multiple balls be supported between iron plate and spring leaf, described iron plate and magnetite attract each other, the acting force of one day to lower cover direction is applied to lens mount and stationary installation, the position that described lower cover is relative with support column is provided with the orthogonal bar-shaped trough for limiting ball moving direction, and what described outer spring block was corresponding on iron plate is provided with orthogonal bar hole.
Voice coil motor of the present utility model is OIS motor, four magnetites around coil are assemblied in by five fitting coils, can realize moving the focusing of camera lens and controllable levels, and the utility model is by stationary installation and stop means, and the translation motion to stabilization controls, translation motion is carried out in a plane, can not produce any drift angle, therefore stabilization effect is very good, and pin number reduces in a large number, be extremely easy to mate with mobile phone circuit.
Accompanying drawing explanation
Below, contrast accompanying drawing and preferred embodiment are described in detail to the utility model, wherein:
Fig. 1 is explosive view of the present utility model;
Fig. 2 is cut-open view of the present utility model;
Fig. 3 is the structural representation of spring leaf;
Fig. 4 is the structural representation of Upper gasket.
Embodiment
Below in conjunction with drawings and Examples, utility model is described in detail.Should be appreciated that to the explanation of specific embodiment only in order to explain the technical scheme that the utility model proposes, and non-limiting the utility model.
Fig. 1, Fig. 2 gives an embodiment of the present utility model, in this embodiment, the voice coil motor of optical anti-vibration is realized by pure translational movement, comprise: the housing be made up of lower cover 10 and metal yoke 2, the lens mount 5 that camera lens is housed is provided with in housing, lens mount 5 outer race focusing coil, four blocks of magnetites 4 are fixed on the four sides inwall of yoke evenly and at intervals, and four blocks of magnetites 4 are all identical towards the polarity of focusing coil side, four translation coils 9 are separately fixed on the lower cover 10 below magnetite 4, wherein two, diagonal angle translation coil 9 can be connected, or four translation coils 9 are separate, four translation coil 9 place plane orthogonal are in optical axis, focusing coil and magnetite 4 interact and control lens mount 5 and move back and forth along optical axis direction, realize the focusing of camera lens, four translation coils 9 interact with magnetite 4, control lens mount 5 perpendicular to the motion carried out in the plane of optical axis in all directions, realize anti-trembling function.
Also be provided with stationary installation in the periphery of lens mount 5, there is the through hole that lens mount 5 can be allowed to pass through at the two ends of stationary installation, and lens mount 5, under the effect of focus coil and magnetite 4, can move around along optical axis relative to holder.Stationary installation comprises the Upper gasket 3 and spring leaf 6 of being located at lens mount 5 two ends respectively, spring leaf 6 is by the inner spring block 61 being arranged on inner ring, be arranged on the outer spring block 62 of outer ring, in connection, the elater 63 of outer spring block forms, Upper gasket 3 comprises the square frame 31 be positioned at above lens mount 5, many support columns 32 are extended towards the direction of spring leaf 6 in the corner of this square frame 31, these support columns are connected with the outer spring block of spring leaf 6 respectively, multiple inner spring blocks that inner ring is located at by spring leaf 6 are then connected with lens mount 5, when focusing coil electricity, magnetite 4 pairs of lens mounts 5 produce the acting force of a parallel optical axis, lens mount 5 is moved forward and backward along optical axis direction, lens mount 5 is by the elater of spring leaf 6, lens mount 5 can be made to move back and forth along optical axis relative to stationary installation.
The utility model is also provided with a stop means, stationary installation and metal yoke 2 can be fixed in the plane perpendicular to optical axis by this stop means, make the translation motion that this stationary installation and metal yoke 2 only drive lens mount 5 and magnetite 4 to carry out in all directions in this plane.Stop means comprises the iron plate 7 be fixed on lower cover 10, and the multiple balls be supported between iron plate 7 and spring leaf 6, iron plate 7 and magnetite 4 attract each other, metal yoke 2 is also had to apply the acting force of one day to lower cover 10 direction to lens mount 5 and stationary installation, and lower cover 10 position relative with support column is provided with the orthogonal bar-shaped trough for limiting ball moving direction, what outer spring block was corresponding on iron plate is provided with orthogonal bar hole, and the diameter of bar-shaped trough and bar hole is all less than the diameter of ball.By lens mount 5, stationary installation, metal yoke 2 and each parts be fixed on above them constitute auto-focusing part, this auto-focusing part is subject to the power to lower cover 10 direction by magnetite 4 and attracting each other of iron plate 7, be limited in the plane perpendicular to optical axis, ball is clamped in iron plate 7 and the orthogonal bar hole of outer spring block by auto-focusing part and lower cover 10, when translation coil 9 is energized, translation coil 9 produces the acting force perpendicular to optical axis place plane to above-mentioned auto-focusing channel floor, this ball rolls in the groove of iron plate 7 and outer spring block, thus drive auto-focusing channel floor to do pure translational movement in this plane, namely any drift angle can not be produced in translation motion, only in this plane, carry out translation motion, make panning effect error less, more accurate.
What deserves to be explained is that the utility model adopts ball to realize the horizontal translating movement of auto-focusing channel floor, friction force is little, thus greatly save the power consumption moved horizontally, and evaded the tilt quantity that existing product produces in translation motion simultaneously, simultaneously, the utility model is also fixed wtih and controls translation coil 9 electric current respectively and the motor driving 8 detecting its translational movement on lower cover 10, this motor drive 8 be integrated with Hall element can accurately detect auto-focusing part perpendicular to lens mount 5 optical axis amount of exercise planar, and for the size of current of FEEDBACK CONTROL translation coil 9.And the pin that optical anti-vibration motor pin is in the market Hall element controls separately, cause motor pin be 14 or more than, and motor pin of the present utility model only has 4, be respectively earth terminal, common port, the input end of IIC and output terminal, be connected with the wiring board of motor internal by above-mentioned four pins, independently can control the information feed back of the focusing coil of motor, translation coil and Hall element, thus realize, on the basis of motor auto-focusing and optical anti-vibration function, enormously simplify the structure of optical anti-vibration motor completely.In order to protect auto-focusing part and stop means; outside the housing that metal yoke 2 and lower cover 10 are formed; also be provided with the shell be made up of enclosing cover 11 and outer metal yoke 1; prevent auto-focusing part and stop means from sustaining damage in motion process, and isolate the impact of external magnetic field on voice coil motor further.
Above specific embodiment is only in order to illustrate structure of the present utility model, and those of ordinary skill in the art can make various deformation and change under design of the present utility model, and these distortion and change include within protection domain of the present utility model.
Claims (8)
1. one kind realizes the voice coil motor of optical anti-vibration by pure translational movement, comprise the housing become with metallic magnetic yoke piece by lower cover, the lens mount be located in housing, be located at yoke inwall multiple magnetites, with magnetite interacts control focusing coil that lens mount focuses, and magnetite interact and control the translation coil of lens mount at the move in plane perpendicular to camera lens optical axis, it is characterized in that:
Also comprise the stationary installation being arranged on lens mount periphery, described lens mount can move back and forth along optical axis relative to stationary installation;
Also comprise and described stationary installation and metal yoke are fixed in the plane perpendicular to optical axis, make this stationary installation and metal yoke in this plane, only drive lens mount and magnetite to carry out the stop means of the translation motion in all directions.
2. voice coil motor as claimed in claim 1, it is characterized in that, described stationary installation comprises the Upper gasket and spring leaf of being located at lens mount two ends respectively, multiple inner spring blocks that inner ring is located at by described spring leaf are connected with lens mount, multiple outer spring blocks that outer ring is located at by described spring leaf are connected with Upper gasket respectively, are provided with the elater that lens mount can be made to move back and forth along optical axis relative to stationary installation between described inner spring sheet and outer spring sheet.
3. voice coil motor as claimed in claim 2, it is characterized in that, described Upper gasket comprises a square frame, and described square frame extends many support columns towards the direction of spring leaf, and described support column is connected respectively with the outer spring block of spring leaf.
4. voice coil motor as claimed in claim 3, it is characterized in that, described stop means comprises the iron plate being fixed on down and covering, and the multiple balls be supported between iron plate and spring leaf, described iron plate and magnetite attract each other, apply the acting force of one day to lower cover direction to lens mount and stationary installation, the position that described lower cover is relative with support column is provided with the orthogonal bar-shaped trough for limiting ball moving direction, and what described outer spring block was corresponding on iron plate is provided with orthogonal bar hole.
5. the voice coil motor as described in Claims 1-4 any one, it is characterized in that, described magnetite is 4 pieces, be fixed on four inwalls of yoke evenly and at intervals, its polarity towards focusing coil side is identical, described focusing mounting coil is in the periphery of lens mount, and described translation coil is provided with four, is separately fixed under below magnetite and covers.
6. voice coil motor as claimed in claim 5, is characterized in that, covers to be fixed wtih to control described translated line loop current respectively and the motor driving detecting its translational movement under described, and described motor drives and is integrated with Hall element.
7. voice coil motor as claimed in claim 5, is characterized in that, be positioned at two translation coils connected in series on diagonal line or each translation coil separate.
8. as Claims 1-4,6, voice coil motor as described in 7 any one, it is characterized in that, also comprise and be located at the outer shell become by enclosing cover and outer metallic magnetic yoke piece of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420808799.2U CN204287688U (en) | 2014-12-19 | 2014-12-19 | A kind of voice coil motor being realized optical anti-vibration by pure translational movement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420808799.2U CN204287688U (en) | 2014-12-19 | 2014-12-19 | A kind of voice coil motor being realized optical anti-vibration by pure translational movement |
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| CN204287688U true CN204287688U (en) | 2015-04-22 |
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| CN201420808799.2U Active CN204287688U (en) | 2014-12-19 | 2014-12-19 | A kind of voice coil motor being realized optical anti-vibration by pure translational movement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950419A (en) * | 2015-07-06 | 2015-09-30 | 南昌欧菲光电技术有限公司 | Camera module |
| 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 |
| CN106254758A (en) * | 2015-06-03 | 2016-12-21 | 安讯士有限公司 | Mechanism and method for optical image stabilization |
| CN110971054A (en) * | 2019-11-30 | 2020-04-07 | 捷开通讯(深圳)有限公司 | Optical anti-shake voice coil motor, camera module and electronic product |
-
2014
- 2014-12-19 CN CN201420808799.2U patent/CN204287688U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106254758A (en) * | 2015-06-03 | 2016-12-21 | 安讯士有限公司 | Mechanism and method for optical image stabilization |
| CN106254758B (en) * | 2015-06-03 | 2020-03-13 | 安讯士有限公司 | Mechanism and method for optical image stabilization |
| 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 |
| CN104950419A (en) * | 2015-07-06 | 2015-09-30 | 南昌欧菲光电技术有限公司 | Camera module |
| CN110971054A (en) * | 2019-11-30 | 2020-04-07 | 捷开通讯(深圳)有限公司 | Optical anti-shake voice coil motor, camera module and electronic product |
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