CN207557555U - A kind of lens driver - Google Patents
A kind of lens driver Download PDFInfo
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- CN207557555U CN207557555U CN201721832813.2U CN201721832813U CN207557555U CN 207557555 U CN207557555 U CN 207557555U CN 201721832813 U CN201721832813 U CN 201721832813U CN 207557555 U CN207557555 U CN 207557555U
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Abstract
A kind of lens driver, including：Lens carrier；It is arranged on the fixed part of lens carrier periphery；It is fixed on the driving coil of lens carrier lateral wall；Be fixed on the inside of the fixed part and with driving coil every Kongxiang pair multiple drive magnets；For movable part suspension to be supported on to the spring element on the inside of fixed part；The sensing element being fixed on the inside of fixed part；And it is fixed on lens carrier and with sensing element every empty opposed sensing magnet；Further include at least a piece of magnetic conduction sheet；A piece of at least a piece of magnetic conduction sheet is arranged between the drive magnet of sensing magnet and sensing magnet.The lens driver of the utility model sets magnetic conduction sheet between drive magnet and sensing magnet, the magnetic direction of drive magnet is oriented to, so as to avoid drive magnet and sense the magnetic interference of magnet, improve the driving of lens driver and the precision of sensing, and drive magnet and sensing magnet may be provided at closer distance, can further reduce the volume of lens driver.
Description
Technical field
The utility model is related to lens used in a kind of camera being loaded into the electronic products such as mobile phone to drive
Device.
Background technology
In recent years, it is equipped with the production of the portable electronics such as the smart mobile phone, tablet computer and wearable device of small-sized image pickup head
Product have obtained widely popularizing, and present camera has all had been provided with the function of auto-focusing.Auto-focusing is usually logical
Cross motor（Lens driver）The mobile realization of camera lens is driven, principle is that the coil after energization is produced by drive magnet
Raw Lorentz force, so as to which lens be made to be moved in its optical axis direction.For focusing accurately and quickly, present lens driver
The device of position detection is all provided with, by magnetic inductor and sensing magnet come enclosing to so as to more where detector lens
It is accurately controlled the movement of camera lens.As electronic product increasingly minimizes, lens driver is also towards the smaller trend of volume
Development.However, lens driver volume reduce, easily make drive magnet and sensing magnet because too close to due to mutually by
Magnetic interference influences the driveability of lens driver and the precision of sensing.
Invention content
It avoids drive magnet the purpose of this utility model is to provide a kind of and senses the magnetic interference between magnet
Lens driver.
A kind of lens driver, for driving a lens, definition subject is located at the optical axis direction of the lens
Front, the lens driver include：For keeping the lens carrier of lens；The fixed part of lens carrier periphery is arranged on,
It is formed with opening in the direction of the optical axis；It is fixed on the driving coil of the lens carrier lateral wall；It is fixed on the fixed part
Inside and with driving coil every Kongxiang pair multiple drive magnets；It is connected between fixed part and movable part, movable for inciting somebody to action
Portion's suspension is supported on the spring element on the inside of fixed part；The sensing element being fixed on the inside of the fixed part；And it is fixed on
Every empty opposed sensing magnet on mirror support and with the sensing element；Further include at least a piece of magnetic conduction sheet；It is described at least a piece of
A piece of in magnetic conduction sheet is arranged between the drive magnet of the sensing magnet and sensing magnet.
As a kind of embodiment, the fixed part includes pedestal, the front shroud being fastened on pedestal and is arranged on front shroud
The magnet holder of inside；The magnet holder includes middle part and is formed with substrate that opening and shape be substantially square and from substrate
Four supporting parts that four corners are extended towards optical axis direction rear vertical；The quantity of the multiple drive magnet is two, point
It is not fixed between two supporting parts and is divided into lens carrier both sides, the sensing magnet is arranged on other the two of lens carrier
At least side in side；In at least a piece of magnetic conduction sheet it is a piece of positioned at it is described sensing magnet with closer to sensing magnet its
In a drive magnet end between, and be fixed on the supporting part of sensing magnet, which is equipped with for receiving
Hold the slot of magnetic conduction sheet.
As another embodiment, before the fixed part includes pedestal, the front shroud being fastened on pedestal and is arranged on
Cover the magnet holder of inside；The magnet holder includes middle part and is formed with substrate that opening and shape be substantially square and from base
Four supporting parts that plate four corners are extended towards optical axis direction rear vertical are equipped on each supporting part and are led for accommodating
The slot of magnetic sheet；The quantity of the multiple drive magnet is two, is separately fixed between two supporting parts and is divided into lens branch
Frame both sides, the sensing magnet are arranged on at least side in the other both sides of lens carrier；The quantity of the magnetic conduction sheet is four
Piece is plugged in respectively in the slot of corresponding supporting part.
As another embodiment, before the fixed part includes pedestal, the front shroud being fastened on pedestal and is arranged on
Cover the magnet holder of inside；The side wall that the pedestal includes substrate and front extends from substrate to optical axis direction；The multiple drive
The quantity of moving magnet is two, is separately fixed between two supporting parts and is divided into lens carrier both sides, and the sensing magnet is set
Put at least side in the other both sides of lens carrier；It is a piece of positioned at the sensing magnet in at least a piece of magnetic conduction sheet
Between the end of one of drive magnet closer to sensing magnet, and it is fixed on the side wall of the pedestal close to sensing magnet
On.
Further, from the direction of lens axis, the center of the magnetic conduction sheet or at the center with corresponding drive
The end of moving magnet is opposite, and magnetic conduction sheet is more than the height of corresponding drive magnet in the height of optical axis direction.
As another embodiment, the lens carrier is substantially in octagonal tubular, and sensing is equipped on one group opposite side
Magnet；The driving coil is four, winds and is fixed on and sensing magnetic rotating around the direction of the optical axis perpendicular to the lens
Lateral surface of the ferropexy when adjacent；The drive magnet is four, be fixed on the inside of the fixed part and with the driving
Coil is opposed one by one；The magnetic conduction sheet is four, is set respectively close to a drive magnet, and positioned at the drive magnet and sensing
Between magnet.
Further, from the direction of lens axis, each drive magnet is generally trapezoidal shaped, and pair of drive magnet
It should be oppositely arranged in the one side of trapezoidal bottom with driving coil；Correspond to trapezoidal bottom and the corner of waist for defining drive magnet are
The end of drive magnet, then magnetic conduction sheet is close to the end set closer to sensing magnet of corresponding drive magnet.
Further, from the direction of lens axis, the center of the magnetic conduction sheet or at the center with corresponding drive
The end of moving magnet is opposite, and magnetic conduction sheet is more than the height of corresponding drive magnet in the height of optical axis direction.
Further, the sensing element is fixed on a circuit board, and the circuit board uses flexible PCB.
Further, the spring element is flat spring, and the flat spring is used to the lens carrier suspension being supported in
On the fixed part, and lens carrier is supported to move along the optical axis direction of the lens.
The lens driver of the utility model sets magnetic conduction sheet between drive magnet and sensing magnet, to drive magnet
Magnetic direction be oriented to, so as to avoid drive magnet and sense magnet between magnetic interference, on the one hand improve lens drive
The sensing precision to lens position of the driving precision of dynamic device, on the other hand because magnetic interference can be avoided by, drives magnetic
Iron and sensing magnet may be provided at closer distance, so as to further reduce the volume of lens driver, meet electronic unit
The requirement of miniaturization.
Description of the drawings
Fig. 1 is the explosive view of the first embodiment of the lens driver of the utility model.
Fig. 2 is the vertical view of the first embodiment of the lens driver of the utility model.
Fig. 3 is the structure diagram of flat spring in Fig. 1.
Fig. 4 is the structure diagram of magnet holder in Fig. 1.
Fig. 5 is the explosive view of the second embodiment of the lens driver of the utility model.
Fig. 6 is the vertical view of the second embodiment of the lens driver of the utility model.
Fig. 7 is the explosive view of the 3rd embodiment of the lens driver of the utility model.
Specific embodiment
Hereinafter, saying the utility model in detail by embodiment, following embodiment does not limit claims institute
The utility model stated, moreover, the whole features not limited illustrated in embodiment are combined as the solution of utility model
It is necessary.
In the present specification, for convenience of description, the front that subject is located at the optical axis direction of lens is defined.It is related to below
Component in, front/front surface/top/upper table of the component is known as positioned at one end/surface in the front of the optical axis direction
Face is known as rear/rear surface/lower section/lower surface of the component positioned at one end/surface at the rear of the optical axis direction.
As shown in Figures 1 to 4, the first embodiment of the utility model mainly includes：Fixed part, lens carrier 1, driving line
Circle 4, drive magnet 2, circuit board 6, sensing magnet 5, flat spring and magnetic conduction sheet 3.
Lens carrier 1 is substantially square column, and central portion is formed with through-hole along the optical axis direction of lens, which is used for
Lens (not shown) are installed.The peripheral side of lens carrier 1 is wherein equipped with groove on one side, and sensing magnet 5 is fixedly mounted on groove
It is interior.Driving coil 4 with perpendicular to the optical axis direction of lens wound on the peripheral side of lens carrier 1, that is, driving coil 4 is around flat
Row is wound in light transmission optical axis direction.In terms of optical axis direction, sensing magnet 5 is located at the inner circumferential side of driving coil 4.4 He of driving coil
Circuit board 6 is equipped between fixed part, circuit board 6 is equipped with sensing element 6a, and sensing element 6a is opposed with sensing magnet 5（Part
Or all across driving coil）, the magnetic field energy that sensing magnet 5 generates is sensed element 6a and detects.When lens carrier 1 is along optical axis
When direction is moved, sensing element 6a senses the changes of magnetic field of magnet 5 by sensing, so that it is determined that lens are in the specific of optical axis direction
Position, and then determine whether lens focus accurately.
Fixed part mainly covers on the conduct yoke on pedestal 8 including pedestal 8 made of resin material, from 8 front side of pedestal
Front shroud 7 and be fixed on the magnet holder made of resin material 9 of the inside of front shroud 7.Pedestal 8 is substantially square, middle part shape
Into there is circular open；Front shroud 7 mainly includes a panel being substantially square, and the central portion of panel is formed with circular open, panel
Periphery be formed with and extend and enclose cricoid side wall straight down.
Magnet holder 9 is made of resin material, hangs down including substrate 9a and from substrate 9a four corners towards optical axis rear
The supporting part 9b that four directly extended are substantially in the form of a column.Substrate 9a is formed with the square frame of opening, the opening for centre
Shape and the shape of the outer periphery of lens carrier 1 match and bigger, make magnet holder 9 that can be set in the outer of lens carrier 1
Side, and lens carrier 1 can be moved relative in optical axis direction.After magnet holder 9 is connect with pedestal 8, two neighboring supporting part 9b
Surround the fixed frame for fixing drive magnet 2 together with substrate 9a, pedestal 8.In the present embodiment, drive magnet 2 is two panels, is put down
Row is fixed in one group of opposite side of magnet holder 9, and be sticked to the madial wall of front shroud 7, and driving coil 4 is made to be in magnetic field.Circuit
Plate 6 is fixed on the madial wall of front shroud 7, and between two panels drive magnet 2.During specific works, it is powered to driving coil 4,
Under the magnetic fields of drive magnet 2, driving coil 4 generates the Lorentz force along lens axis direction, so as to drive lens carrier 1
It is moved to precalculated position.
Magnetic conduction sheet 3 is square sheet, and the upper surface of each supporting part 9b is equipped with the slot 9c for accommodating magnetic conduction sheet 3,
It is parallel with optical axis direction after the insertion slot of magnetic conduction sheet 3 9c.In terms of optical axis direction, magnetic conduction sheet 3 is located at sensing magnet 5 and drive magnet
It is opposite with the end of corresponding drive magnet 2 at the center of magnetic conduction sheet 3 or close center between 2, and closer to（Even closely）
The end of drive magnet 2, and magnetic conduction sheet 3 is more than the height of corresponding drive magnet 2 in the height of optical axis direction.Magnetic conduction sheet 3 can
The excessive magnetic field of drive magnet 2 is guided, so as to avoid drive magnet 2 and sense interfering with each other for magnetic field between magnet 5, improves and drives
Dynamic and sensing accuracy.Specifically, magnetic conduction sheet 3 can be set in the following manner：Mode one, magnetic conduction sheet 3 are four, are plugged respectively
In four slot 9c of corresponding supporting part 9b；Mode two, magnetic conduction sheet 3 be two panels, be plugged in respectively distance sensing magnet 5 compared with
In the slot 9c of two near supporting part 9b；Mode three, magnetic conduction sheet 3 are a piece of, are plugged in 5 nearest supporting part of distance sensing magnet
In the slot of 9b.Employing mode one in the present embodiment, there is provided 4 magnetic conduction sheets 3.The side of can be used in the variation of the utility model
Formula two or mode three.Mode two and mode three can equally reach avoid drive magnet 2 and sense magnet 5 between magnetic field it is mutual
Interference.
Flat spring is used to 1 suspension of lens carrier is supported in fixed part, and make lens carrier 1 that can move along optical axis direction
It is dynamic.In the present embodiment, flat spring is two panels, including upper leaf spring 10 and lower leaf spring 11.Upper leaf spring 10 and lower leaf spring 11 include big
The first connecting portion 12b that body is square, from the outwardly extending flexible sinuous portion 12a in the corner of first connecting portion 12b, with
The second connecting portion of the other end connection of sinuous portion 12a.Wherein, the first connecting portion 12b of upper leaf spring 10 and lens carrier 1 is upper
End face connects, and second connecting portion is connect with the lower face of front shroud 7 or magnet holder 9；The first connecting portion 12b of lower leaf spring 11 with thoroughly
The lower face connection of mirror support 1, second connecting portion are connect with pedestal 8.Lens carrier 1 is suspended in by upper leaf spring 10 and lower leaf spring 11
In fixed part, when lens carrier 1 receives Lorentz force driving, upper leaf spring 10 and lower leaf spring 11 can generate and Lorentz force direction
Opposite restoring force makes lens carrier 1 be moved to the position in dynamic balance.
As shown in Figure 5 and Figure 6, the second embodiment of the lens driver of the utility model, in present embodiment, thoroughly
Mirror support 1 is substantially in octagonal tubular, and central portion is formed with through-hole along the optical axis direction of lens, and the through-hole is not shown for installing
Lens.Formed on one group of opposite side of lens carrier 1 it is fluted, in each groove be inserted with sensing magnet 5.Driving coil 4
It is four, is wound rotating around the direction of the optical axis perpendicular to lens and be fixed on the outer of the side adjacent with sensing 5 fixed edge of magnet
Side（Namely lateral wall）.
Magnet holder 9 is arranged on the peripheral side of lens carrier 1, including substrate 9a and from substrate 9a four corners vertically downward
The four column supporting part 9b extended.Drive magnet 2 is four, and from optical axis direction, drive magnet 2 is substantially in ladder
Shape is individually fixed on four supporting part 9b of magnet holder 9, and the one side corresponding to trapezoidal bottom of drive magnet 2 and drive
Moving winding 4 is one by one every empty opposed.It during specific works, is powered to driving coil 4, under the magnetic fields of drive magnet 2, drives line
Circle 4 generates the Lorentz force along lens axis direction, so as to which lens carrier 1 be driven to be moved to precalculated position.
Define drive magnet 2 correspond to it is trapezoidal bottom and waist corner be drive magnet 2 end, supporting part 9b by
Nearly every drive magnet 2 is equipped with slot close to the end of sensing magnet 5, and magnetic conduction sheet 3 is inserted in slot.It is seen from optical axis direction
It examines, it is opposite with the end of corresponding drive magnet 2 at the center of magnetic conduction sheet 3 or close center, and closer to（Even closely）It drives
Moving magnet, and magnetic conduction sheet 3 is more than the height of corresponding drive magnet 2 in the height of optical axis direction.3 bootable driving magnetic of magnetic conduction sheet
Driving and sensing so as to which magnetic field interferes with each other between avoiding drive magnet 2 and sensing magnet 5, are improved in iron 2 excessive magnetic field
Accuracy.In other embodiment, magnetic conduction sheet could be secured on 7 madial wall of front shroud.
In the present embodiment, circuit board 6 is fixed on pedestal 8, and circuit board 6 is equipped with sensing magnet 5 every empty opposed sense
Element 6a is surveyed, in terms of optical axis direction, sensing magnet 5 is overlapped with sensing element 6a.When lens carrier 1 is moved along optical axis direction,
Sensing element 6a senses the changes of magnetic field of magnet 5 by sensing, so that it is determined that specific location of the lens in optical axis direction, and then really
Whether fix-focus lens focuses accurately.
Flat spring is used to 1 suspension of lens carrier is supported in fixed part, and make lens carrier 1 that can move along optical axis direction
It is dynamic.In the present embodiment, flat spring is two panels, including upper leaf spring 10 and lower leaf spring 11.Upper leaf spring 10 and lower leaf spring 11 are by four
Mutually independent plate spring sheet 12 encloses.Plate spring sheet 12, which includes wriggling, portion 12a and is connected to the of sinuous portion 12a both ends
One connecting portion 12b and second connecting portion 12b.Wherein, the first connecting portion 12b of upper leaf spring 10 and the upper surface of lens carrier 1 connect
It connects, second connecting portion 12c is connect with the lower face of the substrate 9a of magnet holder 9；The first connecting portion 12b and lens of lower leaf spring 11
The lower face connection of stent 1, second connecting portion 12c are connect with the upper surface of pedestal 8.Upper leaf spring 10 and lower leaf spring 11 are by lens branch
Frame 1 is suspended in fixed part, when lens carrier 1 receives Lorentz force driving, upper leaf spring 10 and lower leaf spring 11 can generate and Lip river
The human relations hereby opposite restoring force of force direction, makes lens carrier 1 be moved to the position in dynamic balance.
As shown in fig. 7, the third embodiment of the lens driver of the utility model, lens carrier 1 are substantially square
Column, the optical axis direction of central portion along lens are formed with the through-hole for installing lens not shown.The peripheral side of lens carrier 1
Wherein on one side be equipped with groove, sensing magnet 5 be fixedly mounted in groove.Driving coil 4 is two, rotating around perpendicular to lens
The direction of optical axis wind and be fixed on the lateral surface with the adjacent side of sensing 5 fixed edge of magnet（Namely lateral wall）.
Fixed part mainly includes pedestal 8 made of resin material and the conduct yoke on pedestal 8 is covered on from 8 front side of pedestal
Front shroud 7.Pedestal 8 is substantially square, and one including substrate and from substrate group opposite side extends to form the first side wall 8a straight up
With second sidewall 8b.Wherein, the first side wall 8a is corresponding with 5 fixed edge of sensing magnet of lens carrier 1, and circuit board 6 is fixed on
The outside of one side wall 8a, the sensing element on circuit board 6 are opposed with sensing magnet 5.
In the present embodiment, drive magnet 2 is four, and using two panels as one group, parallel to be fixed on pedestal 8 corresponding with driving coil 4
One group of opposite side（One group of i.e. vertical with the first side wall 8a and second sidewall 8b opposite side）On.Drive magnet 2 and 4 phase of driving coil
It is opposed, driving coil 4 is made to be in magnetic field.After driving coil 4 is powered, under the magnetic fields of drive magnet 2, driving coil 4
The Lorentz force along lens axis direction is generated, so as to which lens carrier 1 be driven to be moved to precalculated position.
The both ends of the first side wall 8a and second sidewall 8b are each formed with magnetic-conductance portion 8c.Magnetic-conductance portion 8c is hollow structure, in
Portion's embedment has magnetic conduction sheet (not shown).From optical axis direction, magnetic-conductance portion 8c is vertical with the first side wall 8a and second sidewall 8b, position
In on 2 fixed edge of drive magnet of pedestal 8, the center of magnetic-conductance portion 8c or the end at center with corresponding drive magnet 2
Relatively, and closer to（Even closely）The end of drive magnet 2, and magnetic-conductance portion 8c is more than corresponding drive in the height of optical axis direction
The height of moving magnet 2.The present embodiment, which can equally reach, to be avoided drive magnet and senses interfering with each other for magnetic field between magnet
Effect.
In the present embodiment, flat spring is two panels, including upper leaf spring 10 and lower leaf spring.Upper leaf spring 10 includes sinuous portion 10a, connects
It is connected to the first connecting portion 10b on the inside of sinuous portion 10a and the second connecting portion 10c being connected on the outside of sinuous portion 10a.Lower leaf spring by
The mutually independent plate spring sheet 12 of two panels encloses, and plate spring sheet 12 includes wriggling portion 12a and is connected to sinuous portion 12a both ends
First connecting portion 12b and second connecting portion 12c.Wherein, the upper end of the first connecting portion 10b of upper leaf spring 10 and lens carrier 1
Face connects, and second connecting portion 10c is connect with the lower face of front shroud 7；Under the first connecting portion 12b of lower leaf spring and lens carrier 1
End face connects, and second connecting portion 12c is connect with pedestal 8.
Although the description combination embodiments above to the utility model carries out, it is familiar with the art
Personnel many replacements can be carried out according to above-mentioned content, modifications and variations, are obvious.Therefore, it is all such
It substitutes, improve and changes and be included in the spirit and scope of appended claims.
Claims (10)
1. a kind of lens driver, before a lens, definition subject is driven to be located at the optical axis direction of the lens
Side, the lens driver include：
For keeping the lens carrier of lens；
The fixed part of lens carrier periphery is arranged on, is formed with opening in the direction of the optical axis；
It is fixed on the driving coil of the lens carrier lateral wall；
Be fixed on the fixed part and with driving coil every Kongxiang pair multiple drive magnets；
Be connected to it is between fixed part and movable part, for movable part suspension to be supported on to the spring element on the inside of fixed part；
The sensing element being fixed on the inside of the fixed part；And
It is fixed on lens carrier and with the sensing element every empty opposed sensing magnet；
It is characterized in that, further include at least a piece of magnetic conduction sheet；
A piece of in at least a piece of magnetic conduction sheet be arranged near the sensing magnet drive magnet and sensing magnet it
Between.
2. lens driver according to claim 1, which is characterized in that the fixed part includes pedestal, is fastened on base
Front shroud on seat and the magnet holder being arranged on the inside of front shroud；The magnet holder is formed with opening including middle part and shape is big
The substrate that body is square and four supporting parts extended from substrate four corners towards optical axis direction rear vertical；It is described more
The quantity of a drive magnet is two, is separately fixed between two supporting parts and is divided into lens carrier both sides, the sensing magnetic
Iron is arranged on at least side in the other both sides of lens carrier；It is a piece of positioned at the sensing in at least a piece of magnetic conduction sheet
Magnet and closer to sensing magnet one of drive magnet end between, and be fixed on close to sensing magnet supporting part
On, which is equipped with the slot for accommodating magnetic conduction sheet.
3. lens driver according to claim 1, which is characterized in that the fixed part includes pedestal, is fastened on base
Front shroud on seat and the magnet holder being arranged on the inside of front shroud；The magnet holder is formed with opening including middle part and shape is big
The substrate that body is square and four supporting parts extended from substrate four corners towards optical axis direction rear vertical, Mei Gecheng
The slot for accommodating magnetic conduction sheet is equipped in load portion；The quantity of the multiple drive magnet is two, is separately fixed at two and holds
Between load portion and lens carrier both sides are divided into, the sensing magnet is arranged at least one in the other both sides of lens carrier
Side；The quantity of the magnetic conduction sheet is four, is plugged in respectively in the slot of corresponding supporting part.
4. lens driver according to claim 1, which is characterized in that the fixed part includes pedestal, is fastened on base
Front shroud on seat and the magnet holder being arranged on the inside of front shroud；The pedestal includes substrate and the front from substrate to optical axis direction
The side wall of extension；The quantity of the multiple drive magnet is two, is separately fixed between two supporting parts and is divided into lens branch
Frame both sides, the sensing magnet are arranged on at least side in the other both sides of lens carrier；In at least a piece of magnetic conduction sheet
A piece of one of drive magnet positioned at the sensing magnet and closer to sensing magnet end between, and be fixed on and lean on
On the side wall of the pedestal of nearly sensing magnet.
5. according to the lens driver described in Claims 2 or 3 or 4, which is characterized in that from the direction of lens axis,
It is opposite with the end of corresponding drive magnet at the center of the magnetic conduction sheet or close center, and magnetic conduction sheet is in the height of optical axis direction
Degree is more than the height of corresponding drive magnet.
6. lens driver according to claim 1, which is characterized in that the lens carrier is substantially in octagonal tubular,
Sensing magnet is equipped on one group opposite side；The driving coil is four, rotating around the side of the optical axis perpendicular to the lens
To the lateral surface for winding and being fixed on the side adjacent with sensing magnet fixed edge；The drive magnet is four, is fixed on described
It is on the inside of fixed part and opposed one by one with the driving coil；The magnetic conduction sheet is four, is set respectively close to a drive magnet,
And between the drive magnet and sensing magnet.
7. lens driver according to claim 6, which is characterized in that each to drive from the direction of lens axis
Moving magnet is generally trapezoidal shaped, and the one side corresponding to trapezoidal bottom of drive magnet is oppositely arranged with driving coil；Definition is driven
End of the corner for corresponding to trapezoidal bottom and waist of moving magnet for drive magnet, then magnetic conduction sheet is close to corresponding drive magnet
Closer to the end set of sensing magnet.
8. lens driver according to claim 7, which is characterized in that described to lead from the direction of lens axis
It is opposite with the end of corresponding drive magnet at the center of magnetic sheet or close center, and magnetic conduction sheet is more than in the height of optical axis direction
The height of corresponding drive magnet.
9. according to the lens driver described in Claims 2 or 3 or 6, which is characterized in that the sensing element is fixed on an electricity
On the plate of road, the circuit board uses flexible PCB.
10. lens driver according to claim 9, it is characterised in that：The spring element be flat spring, the plate
Spring is used to the lens carrier suspension being supported in the fixed part, and lens carrier is supported as can be along the lens
Optical axis direction movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721832813.2U CN207557555U (en) | 2017-12-25 | 2017-12-25 | A kind of lens driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721832813.2U CN207557555U (en) | 2017-12-25 | 2017-12-25 | A kind of lens driver |
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| Publication Number | Publication Date |
|---|---|
| CN207557555U true CN207557555U (en) | 2018-06-29 |
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ID=62660670
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721832813.2U Active CN207557555U (en) | 2017-12-25 | 2017-12-25 | A kind of lens driver |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109960003A (en) * | 2017-12-25 | 2019-07-02 | 惠州大亚湾三美达光学技术有限公司 | A kind of lens driver |
| CN109975943A (en) * | 2019-03-12 | 2019-07-05 | 惠州大亚湾三美达光学技术有限公司 | Low magnetic disturbance lens driver and dual camera motor |
-
2017
- 2017-12-25 CN CN201721832813.2U patent/CN207557555U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109960003A (en) * | 2017-12-25 | 2019-07-02 | 惠州大亚湾三美达光学技术有限公司 | A kind of lens driver |
| CN109975943A (en) * | 2019-03-12 | 2019-07-05 | 惠州大亚湾三美达光学技术有限公司 | Low magnetic disturbance lens driver and dual camera motor |
| CN109975943B (en) * | 2019-03-12 | 2024-02-02 | 惠州萨至德光电科技有限公司 | Low magnetic interference lens driving device and double-camera motor |
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| TR01 | Transfer of patent right |
Effective date of registration: 20211216 Address after: Xiangshuihe Industrial Park, Dayawan Economic and Technological Development Zone, Huizhou City, Guangdong Province Patentee after: Huizhou Sazhide Optoelectronics Technology Co.,Ltd. Address before: 516083 4th floor, No.6 workshop, Yongchang electronics company, Xiangshuihe Industrial Park, Daya Bay, Huizhou City, Guangdong Province Patentee before: HUIZHOU DAYA BAY JSS OPTICAL TECHNOLOGY Co.,Ltd. Patentee before: HUIZHOU DAYA BAY EVER BRIGHT ELECTRONICS & INDUSTRIAL Co.,Ltd. Patentee before: JSS OPTICAL TECHNOLOGY Co.,Ltd. |