CN101944816A - Voice coil motor and flat spring thereof - Google Patents
Voice coil motor and flat spring thereof Download PDFInfo
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- CN101944816A CN101944816A CN200910108581XA CN200910108581A CN101944816A CN 101944816 A CN101944816 A CN 101944816A CN 200910108581X A CN200910108581X A CN 200910108581XA CN 200910108581 A CN200910108581 A CN 200910108581A CN 101944816 A CN101944816 A CN 101944816A
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- 230000033001 locomotion Effects 0.000 claims description 57
- 238000010586 diagram Methods 0.000 description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention provides a voice coil motor and a flat spring thereof. The voice coil motor comprises a fixed part and a moving part; the flat spring comprises an upper spring and a lower spring; the front end and the back end of the moving part are connected with the fixed part respectively by the upper spring and the lower spring; the lower spring comprises a plurality of spring units, and each spring unit comprises a fixed part connecting end (321) used for connecting the fixed part, a moving part connection end (324) used for connecting the moving part, a straight elastic arm (322) and an arc-shaped connecting part (323); one end of the elastic arm is connected to the fixed part connecting end (321), and the other end of the elastic arm is connected to the moving part connection end (324) by the arc-shaped connecting part (323); and the elastic force, resisting the rotation of the moving part, of the lower spring is bigger than that of the upper spring. The flat spring has quite high torsional property, thereby avoiding the bigger deflection of the moving part when the moving part moves forward or backward.
Description
Technical field
The springs (leaf spring) that the present invention relates to a kind of voice coil motor and be used for voice coil motor.
Background technology
Voice coil motor is extensive use of fields such as camera system, loud speaker.Voice coil motor generally includes standing part, motion parts and upper spring and lower spring.Standing part generally includes pedestal, be installed to the yoke of pedestal, be installed to the magnet of yoke; And motion parts generally includes adjustable shelf (for example lens bracket), is sleeved on the coil of adjustable shelf periphery.Upper spring is used for connecting the upper end and the standing part of motion parts, and lower spring is used for connecting the lower end and the standing part of motion parts.Motion parts can either seesaw with respect to standing part under electromagnetic action, can be stabilized in the position of wanting again under the effect of spring.
Figure 12 is existing a kind of schematic diagram that is used for the spring of voice coil motor, and this spring is springs (leaf spring), the plurality of elastic arm 322 ' that comprises inner ring 325 ', outer ring 321 ' and be used to connect inner ring and outer ring.The inner ring 325 ' of spring is installed to the motion parts (for example lens bracket) of voice coil loudspeaker voice coil horse, and outer ring 321 ' is installed to the standing part of voice coil motor.Those skilled in the art will recognize, the elastic force of this spring is less, and motion parts is easily with respect to standing part generation beat, thereby has increased the difficulty of assembling voice coil motor, has influenced assembling speed.In addition, voice coil motor in use, motion parts also is easy to generate and rotates or rock during with respect to the linear movement of standing part fore-and-aft direction.If this voice coil motor is used to drive camera lens, will influence image quality.
Summary of the invention
An object of the present invention is to provide a kind of springs that is used for voice coil motor, this spring has the elastic force of the motion parts rotation of bigger anti-voice coil motor.
For this reason, the invention provides a kind of springs, be used to connect the standing part and the motion parts of voice coil motor, described spring comprises some spring units, and each spring unit comprises that a standing part link is used to connect described standing part, a motion parts link is used to connect described motion parts, a straight elastic arm and an arc connecting portion; Described elastic arm one end is connected to described standing part link, and the other end is connected to described motion parts link by described arc connecting portion.
Further improvement of the present invention is: the intensity of described arc connecting portion is greater than the intensity of described elastic arm,
Further improvement of the present invention is: the sheet thickness of described arc connecting portion is identical with the sheet thickness of described elastic arm, and the sheet width of described arc connecting portion is greater than the sheet width of described elastic arm.
Further improvement of the present invention is: described spring also comprises some fillets, the two ends of each fillet are connected respectively to the motion parts link of two corresponding spring units, and described fillet is basically parallel to the elastic arm of one of them spring unit and forms an angle with the elastic arm of another Flexible element.
The present invention also provides a kind of voice coil motor, comprise standing part, motion parts and upper spring and lower spring, upper spring connects the front end and the standing part of described motion parts, lower spring connects the rear end and the standing part of described motion parts, and described motion parts can seesaw with respect to standing part along an axis; Wherein: described lower spring is a springs, comprise some spring units, each spring unit comprises that a standing part link is used to connect described standing part, a motion parts link is used to connect described motion parts, a straight elastic arm and an arc connecting portion; Described elastic arm one end is connected to described standing part link, and the other end is connected to described motion parts link by described arc connecting portion; The anti-described motion parts of described lower spring around the elastic force of described rotational greater than the anti-described motion parts of described upper spring elastic force around described rotational.
Further improvement of the present invention is: described upper spring also comprises some described spring units; The intensity of the arc connecting portion of described lower spring is greater than the intensity of the arc connecting portion of described upper spring.
Further improvement of the present invention is: the intensity of the elastic arm of described lower spring is greater than the intensity of the elastic arm of described upper spring.
Further improvement of the present invention is: described motion parts is equipped with coil, and wherein two spring units of described lower spring are electrically connected the part as described coil power supply circuit with described coil.
Therefore compare with existing springs, springs of the present invention comprises some spring units, and spring unit has straight elastic edge and arc connecting portion, has the ability that the motion parts of bigger anti-voice coil motor twists.This spring can the steady sound coil motor motion parts, avoid motion parts undesired rotation when seesawing, to occur.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet institute's accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
In the accompanying drawing:
Fig. 1 is the exploded perspective view of the lens driving apparatus of one embodiment of the invention;
Fig. 2 is the partial schematic diagram of lens driving apparatus shown in Figure 1;
Fig. 3 is the cutaway view of lens driving apparatus shown in Figure 1;
Fig. 4 is the schematic diagram of the flux circuit of lens driving apparatus shown in Figure 1;
Fig. 5 is the schematic diagram of the lower spring of lens driving apparatus shown in Figure 1;
Fig. 6 is the upper spring of lens driving apparatus shown in Figure 1 and the schematic diagram of lower spring;
Fig. 7 is the schematic diagram that spring shown in Figure 5 is installed to lens bracket;
Fig. 8 is the schematic diagram of another kind of upper spring;
Fig. 9 is the schematic diagram of the yoke of lens driving apparatus shown in Figure 1;
Figure 10 is the cutaway view after lens driving apparatus shown in Figure 1 removes lens bracket;
Figure 11 is the schematic diagram of yoke of the lens driving apparatus of another kind of embodiment;
Figure 12 is the schematic diagram of the spring of existing a kind of lens driving apparatus use.
Embodiment
Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and other beneficial effects apparent by the specific embodiment of the present invention is described in detail.
In an embodiment of the present invention, voice coil motor is as a kind of lens driving apparatus, but voice coil motor of the present invention is not limited to as lens driving apparatus.
Fig. 1 and Fig. 2 are respectively the exploded perspective view and the partial schematic diagrams of lens driving apparatus among the embodiment.As depicted in figs. 1 and 2, lens driving apparatus comprises standing part 1, motion parts 2 and spring 31 and 32.Wherein, standing part 1 comprise pedestal 15, be installed to pedestal yoke 13, be installed to magnet 14, the protective cover 12 that is installed to pedestal and front shroud 11 in the yoke.The coil 22 that motion parts 2 comprises lens bracket 21 and is sleeved on the lens bracket outside.Lens bracket 21 is supported by pedestal 15, and lens bracket 21 is hollow prisms in the present embodiment, comprises the rib portion of some sidewalls and the adjacent sidewall of being separated by of some connections.In the lens bracket 21 optics former for example CCD (charge coupled device) camera lens or CMOS (complementary metal oxide semiconductors (CMOS)) camera lens can be installed.After lens driving apparatus assembled, coil 22 was positioned at yoke 13 and is in the magnetic field range of magnet 14, thereby the active force drive lens bracket 21 that is subjected to magnetic field after coil 22 energisings moves along the relative pedestal 15 of optical axis direction.Protective cover 12 and front shroud 11 are provided with through hole, so that the optics former is taken.Spring 31 connects the front end and the pedestal 15 of lens bracket 21, in this specification and claims spring 31 is called upper spring; Lower spring 32 connects the rear end and the pedestal 15 of lens bracket 21, in this specification and claims spring 32 is called lower spring.Upper spring 31 and lower spring 32 all are springs (leaf spring), be used for lens bracket is stabilized in the position of wanting, and lens bracket is returned to initial position.
In the present embodiment, lens bracket 21 has 4 sidewalls and 4 rib portions.Rib portion has fin 211, and fin 211 is the L type, and its bending place is used to support coil 22 as a shoulder.Coil 22 is fixed on the fin 211, thereby is sleeved on the periphery of lens bracket 21, and the upper end of fin 211 can be higher than the upper end of coil 22, and is perhaps concordant with the upper end of coil 22, perhaps is lower than the upper end of coil 22.In the present embodiment, coil 22 comprises 4 limit portions and 4 bights, and alternately arrange in limit portion and bight, and the bight connects adjacent two limit portions.Can the bight of coil 22 be fixed to fin 211 by using mode such as adhesive, because fin 211 is with respect to the outside protrusion of sidewall, so, to there be air gap between the sidewall of the limit portion of coil 22 and corresponding lens bracket 21, this air gap allows yoke 13 to pass, and will be elaborated below.
Fig. 3 and Fig. 4 are respectively the schematic cross-section and the field circuit schematic diagrames of lens driving apparatus.As shown in Figure 3 and Figure 4, the installation site of yoke 13 is corresponding with the limit portion of coil, each yoke 13 corresponding coil side portion.With reference to figure 3, yoke 13 cross sections are the U type, comprise outer wall 131, inwall 132 and the connecting wall 133 that is used to connect outer wall and inwall.Yoke 13 tips upside down on the pedestal 15, the outer wall 131 of yoke is positioned at outside the coil 22, inwall 132 extend in corresponding coil 22 limit portions and the air gap between lens bracket 21 sidewalls, make the limit portion of coil 22 be positioned at yoke 13 inside and and outer wall 131, inwall 132 between have air gap.As mentioned above, because have air gap between the limit portion of coil 22 and corresponding lens bracket 21 sidewalls, so, the motion that yoke 13 can the interference mirror headstock 21.Can increase the height of the inwall 132 of yoke 13 in the lens driving apparatus of the present invention, make the height of outer wall 131, inwall 132 equal substantially, this helps improving the magnetic field utilance, is further detailed below in conjunction with Fig. 4.
As shown in Figure 4, magnet 14 is installed in the inner surface of yoke 13, in the present embodiment, each yoke is equipped with a magnet 14, a side of magnet 14 clings to the inner surface of the outer wall 131 of yoke, another side of magnet 14 face coil 22 limit portion and and this limit portion between have air gap.Magnet and corresponding lens bracket sidewall, yoke inwall, yoke outer wall are substantially parallel.Magnet 14 is along the radial polarised of coil, and magnetic direction is shown in the arrow of Fig. 4, and under this design, from the magnetic flux that magnet 14 sends, the overwhelming majority can both enter yoke 13 and pass coil 22.Because the magnetic resistance of yoke 13 is less, therefore, the magnetic field of passing coil will be bigger, thereby can improve the utilance in magnetic field.As a kind of preferred version, the outer wall 131 of yoke 13 and the equal in length of inwall 132 or equal substantially, highly also equal or equal substantially, the axial dimension of the inwall of yoke is greater than or equal to the corresponding size of described magnet, makes most of flux circuit of magnet all pass through yoke.
Fig. 5 is the schematic diagram of lower spring 32 shown in Figure 1, and Fig. 7 is the schematic diagram that spring is installed to lens bracket.With reference to figure 1, Fig. 5 and Fig. 7, lower spring 32 is springs (leaf spring), and its plane, place was not basically perpendicular to the optical axis of lens bracket when deformation took place lower spring 32.Lower spring 32 comprises independently spring unit, and each spring unit all comprises a standing part link 321, straight elastic arm 322, an arc connecting portion 323 and a motion parts link 324.Elastic arm 322 1 ends are connected to standing part link 321, and the other end connects motion parts link 324 by arc connecting portion 323, and standing part link 321 is used for being installed to pedestal 15, and motion parts link 324 is used for being installed to lens bracket 21.Because the elastic arm of lower spring 322 is straight and is basically parallel to the sidewall of lens bracket 21, therefore, the spring of this structure has bigger elastic force, prevent that lens bracket 21 from undesired reversing or beat being taken place when seesawing, can more stably lens bracket 21 be remained on the position of wanting, thereby guarantee image quality.On the other hand, when assembling, the standing part link 321 of lower spring 32 is installed to pedestal 15, motion parts link 324 is installed to after the lens bracket 21, and lens bracket 21 is just more stable, thereby helps quick assembling.
For the ease of installing, lower spring 32 also comprises two fillets 325, the two ends of each fillet 325 are connected respectively to the motion parts link 324 of two corresponding spring units, thereby fillet 325 is basically parallel to elastic arm and this elastic arm formation U-shaped with one of them spring unit, this fillet 325 also with the elastic arm shape of another spring unit in an angle, this angle preferably equals the angle of the adjacent sidewall of being separated by of lens bracket.In the present embodiment, 4 spring units of lower spring 32 are divided into independently two groups, these two groups also are connected with corresponding connector 42 respectively and as the part of coil 22 power supply circuits, thereby no longer need the power supply circuits of extra lead as coil 22, simplify the structure.Alternatively, lower spring 32 can also have more fillet, thereby each motion parts link 324 is linked together, and perhaps each standing part link 321 is linked together.
For further strengthening the ability that lower spring 32 anti-lens brackets 21 reverse, the intensity of the arc connecting portion 323 of lower spring 32 is more preferably greater than the intensity of elastic arm 322, and this can be by realizing by the width or the thickness that change sheet material.In the present embodiment, the sheet thickness of arc connecting portion 323 is identical with the sheet thickness of elastic arm 322, and the sheet width of arc connecting portion 323 is greater than the sheet width of elastic arm 322.Alternatively, the sheet width of arc connecting portion 323 is identical with the sheet width of elastic arm 322, and the sheet thickness of arc connecting portion 323 is greater than the sheet thickness of elastic arm 322.
Refer again to Fig. 5 and Fig. 7, when lens bracket 21 when its initial position begins to seesaw with respect to pedestal 15, the motion parts link 324 of lower spring 32 will carry out certain seesawing with respect to standing part link 321, because elastic arm 322 is difficult to elongate, so, slight rotation will take place in lens bracket 21, and its rotation direction is shown in the arrow of Fig. 5.This rotation is subjected to lower spring 32 constraints, be not random, and amount of spin is not too large.
As shown in Figure 6 and Figure 7, in the present embodiment, the structure of upper spring 31 is identical with lower spring 32.During assembling, being flapped toward of the elastic arm 312 of upper spring 31 should be identical with being flapped toward of the elastic arm 322 of lower spring, and the torsional direction of front-end and back-end is identical when making lens bracket 21 motions.In addition, because this spring with straight elastic arm has bigger elastic force, therefore, the elastic force of upper spring 31 should be less than the elastic force of lower spring 32.Further, the elastic force of anti-lens bracket 21 rotations of lower spring 32 is greater than the elastic force of anti-lens bracket 21 rotations of upper spring 31.
In the present embodiment, the intensity of the arc connecting portion 323 of lower spring 32 is greater than the intensity of the arc connecting portion 313 of upper spring 31, and the intensity of the elastic arm 322 of lower spring 32 is greater than the intensity of the elastic arm 312 of upper spring 31.As mentioned above, can change intensity by sheet thickness, the sheet width that changes spring.
In addition, upper spring 31, lower spring 32 can have different structures.Fig. 8 is the schematic diagram of another upper spring.Each motion parts link of this upper spring all links together by fillet.
Fig. 9 is the schematic diagram of yoke.Yoke 13 is made up of the magnetic resistance materials with smaller, and in the present embodiment, magnetic resistance 13 is formed by the iron plate bending, can produce in batches apace, has reduced the cost of yoke.For the ease of yoke is installed, through hole 135 can be set on the outer wall of yoke be used for fastening with pedestal.Through hole 135 can be arranged on the lower edge of outer wall, also can be arranged on from the extended installation foot 136 of outer wall.
In addition, as Fig. 9 and shown in Figure 10, connecting wall 133 two ends of yoke 13 have outwardly directed projection 134.And pedestal 15 is provided with some support chips of holding up 151, corresponding two support chips of each yoke, and the upper end of two support chips is provided with the projection that groove is used to support the yoke two ends.
As a kind of yoke of replacement, can link together by inwall, outer wall or connecting wall between each yoke 13.For example, as shown in figure 11, each yoke 13 links together by outer wall.It is also comparatively convenient to make this yoke, dismisses unwanted part on the iron plate of strip, and bending is to form inner and outer wall then, and crooked then this iron plate gets final product.
In conjunction with the preferred embodiments the present invention is set forth above.Should recognize that the present invention is not limited to the scheme shown in the preferred embodiment.For example, lens bracket 21 can be hollow column type, perhaps hollow pentagonal prism type, six prismatics or the like, as long as the outer surface of lens bracket be provided with fin be used for fixing coil and make coil and the outer surface of lens bracket between have air gap.Fin can be arranged in all rib portions, also can be only in a part of rib portion.Similarly, can be in the corresponding yoke of installing of all coil side portion, also can be only yoke be installed in a part of coil side portion.The magnet number of installing in each yoke can be one, also can be polylith, and magnet can be installed in the outer wall or the inwall of yoke.Install under the situation of polylith magnet in each yoke, these magnet can be arranged in a row, and also can line up two rows or many rows.
Claims (12)
1. springs, be used to connect the standing part and the motion parts of voice coil motor, it is characterized in that, described spring (32) comprises some spring units, and each spring unit comprises that a standing part link (321) is used to connect described standing part, a motion parts link (324) is used to connect described motion parts, a straight elastic arm (322) and an arc connecting portion (323); Described elastic arm one end is connected to described standing part link (321), and the other end is connected to described motion parts link (324) by described arc connecting portion (323).
2. springs according to claim 1 is characterized in that, the intensity of described arc connecting portion (323) is greater than the intensity of described elastic arm (322).
3. springs as claimed in claim 2 is characterized in that, the sheet thickness of described arc connecting portion (323) is identical with the sheet thickness of described elastic arm (322), and the sheet width of described arc connecting portion is greater than the sheet width of described elastic arm; Perhaps
The sheet width of described arc connecting portion (323) is identical with the sheet width of described elastic arm (322), and the sheet thickness of described arc connecting portion is greater than the sheet thickness of described elastic arm.
4. as any described springs in the claim 1 to 3, it is characterized in that, described spring (32) also comprises some fillets (325), the two ends of each fillet are connected respectively to the motion parts link (324) of two corresponding spring units, and the elastic arm (322) of described fillet (325) and one of them spring unit forms the U shape and forms an angle with the elastic arm (322) of another Flexible element.
5. springs as claimed in claim 4, it is characterized in that, described spring (32) comprises four described spring units and two described fillets, a fillet connects the wherein motion parts link (324) of two spring units, and another fillet connects the motion parts link of two other spring unit.
6. springs as claimed in claim 4 is characterized in that, described spring (32) comprises four described spring units and four described fillets.
7. voice coil motor, comprise standing part (1), motion parts (2) and upper spring (31) and lower spring (32), the front end of described motion parts (2), rear end are connected to described standing part (1) by described upper spring and lower spring respectively, and described motion parts can seesaw with respect to described standing part along an axis; It is characterized in that:
Described lower spring is a springs, comprise some spring units, each spring unit comprises that a standing part link (321) is used to connect described standing part, a motion parts link (324) is used to connect described motion parts, a straight elastic arm (322) and an arc connecting portion (323); Described elastic arm one end is connected to described standing part link (321), and the other end is connected to described motion parts link (324) by described arc connecting portion (323);
The anti-described motion parts (2) of described lower spring around the elastic force of described rotational greater than the anti-described motion parts (2) of described upper spring elastic force around described rotational.
8. voice coil motor as claimed in claim 7 is characterized in that, the structure of described upper spring (31) is identical with described lower spring (32), and the intensity of the arc connecting portion of described lower spring (32) is greater than the intensity of the arc connecting portion of described upper spring (31).
9. voice coil motor as claimed in claim 8 is characterized in that:
The sheet thickness of the arc connecting portion of described lower spring (32) is identical with the sheet thickness of the arc connecting portion of described upper spring (31), and the sheet width of the arc connecting portion of described lower spring (32) is greater than the sheet width of the arc connecting portion of described upper spring (31); Perhaps
The sheet width of the arc connecting portion of described lower spring (32) is identical with the sheet width of the arc connecting portion of described upper spring (31), and the sheet thickness of the arc connecting portion of described lower spring (32) is greater than the sheet thickness of the arc connecting portion of described upper spring (31).
10. voice coil motor as claimed in claim 8 is characterized in that, the intensity of the elastic arm of described lower spring (32) is greater than the intensity of the elastic arm of described upper spring (31).
11. as voice coil motor as described in the claim 7 to 10 any, it is characterized in that, described lower spring (32) also comprises some fillets (325), and the two ends of each fillet are connected respectively to the motion parts link (324) of two spring units of lower spring (32).
12. as voice coil motor as described in the claim 7 to 10 any, it is characterized in that described motion parts is equipped with coil, wherein two spring units of described lower spring (32) are electrically connected the part as described coil power supply circuit with described coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910108581.XA CN101944816B (en) | 2009-07-03 | 2009-07-03 | Voice coil motor and flat spring thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910108581.XA CN101944816B (en) | 2009-07-03 | 2009-07-03 | Voice coil motor and flat spring thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101944816A true CN101944816A (en) | 2011-01-12 |
| CN101944816B CN101944816B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910108581.XA Expired - Fee Related CN101944816B (en) | 2009-07-03 | 2009-07-03 | Voice coil motor and flat spring thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102810967A (en) * | 2011-05-31 | 2012-12-05 | 鸿富锦精密工业（深圳）有限公司 | voice coil motor |
| CN104280853A (en) * | 2014-09-25 | 2015-01-14 | 南昌欧菲光电技术有限公司 | Focusing structure, lens module and camera module with said lens module |
| CN104849832A (en) * | 2015-05-19 | 2015-08-19 | 苏州久易光电科技有限公司 | High-stability voice coil motor used for lens driving |
| CN107040118A (en) * | 2016-02-04 | 2017-08-11 | 台湾东电化股份有限公司 | Electromagnetic driving module and lens driving device using same |
| CN107763126A (en) * | 2016-08-17 | 2018-03-06 | 东莞市东坑合利美电子电器有限公司 | Elastic grillage |
| CN108372369A (en) * | 2018-03-27 | 2018-08-07 | 苏州聚力电机有限公司 | A kind of typesetting design of the novel shrapnel of voice coil motor |
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| CN102810967A (en) * | 2011-05-31 | 2012-12-05 | 鸿富锦精密工业（深圳）有限公司 | voice coil motor |
| CN102810967B (en) * | 2011-05-31 | 2016-05-11 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
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| CN104849832A (en) * | 2015-05-19 | 2015-08-19 | 苏州久易光电科技有限公司 | High-stability voice coil motor used for lens driving |
| CN104849832B (en) * | 2015-05-19 | 2017-06-09 | 苏州久易光电科技有限公司 | A kind of high stability voice coil motor driven for lens |
| CN107040118A (en) * | 2016-02-04 | 2017-08-11 | 台湾东电化股份有限公司 | Electromagnetic driving module and lens driving device using same |
| CN107040118B (en) * | 2016-02-04 | 2020-06-05 | 台湾东电化股份有限公司 | Electromagnetic driving module and lens driving device using same |
| CN107763126A (en) * | 2016-08-17 | 2018-03-06 | 东莞市东坑合利美电子电器有限公司 | Elastic grillage |
| CN108372369A (en) * | 2018-03-27 | 2018-08-07 | 苏州聚力电机有限公司 | A kind of typesetting design of the novel shrapnel of voice coil motor |
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| CN101944816B (en) | 2015-01-07 |
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