CN209184460U - A kind of voice coil motor with double position limiting structures - Google Patents
A kind of voice coil motor with double position limiting structures Download PDFInfo
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- CN209184460U CN209184460U CN201821954575.7U CN201821954575U CN209184460U CN 209184460 U CN209184460 U CN 209184460U CN 201821954575 U CN201821954575 U CN 201821954575U CN 209184460 U CN209184460 U CN 209184460U
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- camera lens
- seat
- shell
- voice coil
- coil motor
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Abstract
The utility model discloses a kind of voice coil motor with double position limiting structures, voice coil motor includes that shell and camera lens carry seat；Shell is hood-like structure, including top plate and side plate, has the first aperture on top plate, extends downwardly multiple claws to bend inwards at the edge of first aperture；Camera lens, which carries seat tool, the second aperture, is provided with multiple first boss upwardly extended on the upper surface of camera lens load seat；There is the first spacing between first boss and the top plate inner wall of the shell；Stating camera lens and carrying also has card slot corresponding with the claw on seat, claw is located in card slot and claw and card slot have the second spacing in the up-down direction.The embodiment of the present application increases the contact-impact point and collision area between shell and camera lens load seat in above-below direction by double position limiting structures, when reducing camera lens load seat up and down motion, clast with generating when the severity and collision of collision surface damage when shell localized bumps, reduces and camera module is even avoided to generate stain in imaging.
Description
Technical field
The utility model relates to micro machine technical field, a kind of particularly voice coil motor with double position limiting structures.
Background technique
Auto-focusing mobile phone camera module requires the image quality taken pictures higher and higher at present, and Mobile phone automatic focusing mechanism is micro-
Type motor can all cause contact, the collision of internal limiting component in auto-focusing or external impact.It reaches and is working in voice coil electricity
Or when reliability test, camera lens, which carries seat, can generate movement, and constantly can hit and collide with the shell of voice coil motor, hit
It is easy dust when hitting, generates material clast, and these clasts can fall into mould group imaging area with work or test, finally make
Mirror surface stain when being imaged at camera module.Therefore, when how to reduce camera lens carrier and the base boss collision in voice coil motor
Dust problem generates the technical issues of stain is those skilled in the art's urgent need to resolve when camera module being avoided to be imaged.
Utility model content
The purpose of the utility model embodiment is in view of the above problems, providing a kind of voice coil horse with double position limiting structures
It reaches.
A kind of voice coil motor with double position limiting structures provided by the embodiment of the utility model, the voice coil motor include outer
Shell and camera lens carry seat；The shell is hood-like structure, including top plate and side plate, has the first aperture on the top plate, described
The edge of first aperture extends downwardly multiple claws to bend inwards；The camera lens, which carries seat tool, the second aperture, the camera lens
It carries and is provided with multiple first boss upwardly extended on the upper surface of seat；The top plate inner wall of the first boss and the shell it
Between have the first spacing；The camera lens, which carries, also has card slot corresponding with the claw on seat, the claw be located at card slot it is interior,
And claw and card slot have the second spacing in the up-down direction.
Preferably, first spacing is 0.05mm ~ 0.5mm；First spacing is 0.05mm ~ 0.5mm.
Preferably, first spacing is equal to the second spacing.
Preferably, the shell is metal shell.
Preferably, the top surface of the first boss is plane, and parallel with the top plate inner wall of shell.
Preferably, the lower end of the claw also has bent over arms, and the bent over arms is parallel with the bottom surface of card slot.
Preferably, the voice coil motor further includes pedestal, upper elastic slice and lower elastic slice, and the upper elastic slice setting carries seat in camera lens
Between upper surface and shell, the lower elastic slice is arranged between camera lens carrier lower end surface and pedestal.
Preferably, the upper surface that the camera lens carries seat also has multiple second boss, is provided on the upper elastic slice and institute
State the corresponding location hole of second boss.
Compared with the background art, the beneficial effects of the utility model are as follows:
Technical solution provided by the embodiments of the present application carries the collision between seat in above-below direction for shell and camera lens, leads to
Improvement is crossed, carrying shell and camera lens between seat has double position limiting structures: the fit structure of the top plate inner wall of first boss and shell
For the first position limiting structure, it is the second position limiting structure that camera lens, which carries the card slot of seat and the fit structure of the claw of shell,.Pass through double limits
Structure increases shell and camera lens carries the contact-impact point between seat in above-below direction and collides area, reduces camera lens and carries on seat
Lower movement and the severity and dust risk that surface damage is collided when shell localized bumps, even avoid camera module to reduce
Stain is generated in imaging.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of explosive view of voice coil motor provided by the utility model embodiment one；
Fig. 2 is a kind of top view of voice coil motor provided by the utility model embodiment one；
Fig. 3 is cross-sectional view at A-A in Fig. 2；
Fig. 4 is a kind of camera lens load seat perspective view of voice coil motor provided by the utility model embodiment two；
Fig. 5 is a kind of camera lens load seat top view of voice coil motor provided by the utility model embodiment two；Fig. 6 is this reality
A kind of top view of voice coil motor provided by new embodiment two；
Fig. 7 is cross-sectional view at B-B in Fig. 6；
Fig. 8 is a kind of camera lens load seat perspective view of voice coil motor provided by the utility model embodiment three；
Fig. 9 is a kind of camera lens load seat bottom view of voice coil motor provided by the utility model embodiment three；
Figure 10 is a kind of pedestal perspective view of voice coil motor provided by the utility model embodiment three；
Figure 11 is a kind of cross-sectional view of voice coil motor provided by the utility model embodiment three.
Appended drawing reference:
1- shell, 2- camera lens carry seat, 3- pedestal, 11- top plate, 12- side plate, the first aperture of 13-, 14- claw, 21- first
Boss, the first lateral Displacement of 22- boss, the second side 23- are to the top of positive stop lug boss, 24- card slot, 22a- the first lateral Displacement boss
Face, 22b- the first lateral Displacement boss lateral surface, 31- limited block.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
With reference to the accompanying drawings and examples, the structurally and functionally principle of the utility model is described further:
Embodiment one
Shell 1 and camera lens, which carry between seat 2, has collision in multiple directions.Such as Z-direction (the i.e. upper and lower in space
To) and horizontal plane direction (i.e. X, Y direction) have collision.
The collision that the present embodiment carries between seat 2 in above-below direction for shell 1 and camera lens improves.
As shown in Fig. 1 ~ Fig. 3, the utility model embodiment provides a kind of voice coil motor with double position limiting structures.Voice coil
Motor includes shell 1, camera lens load seat 2 and pedestal 3.
Shell 1 is hood-like structure, and lower part is open, and hood-like inside configuration is the space for accommodating camera lens and carrying seat 2, for assembling mirror
Head carries seat 2.Shell 1 includes top plate 11 and side plate 12, has the first aperture 13 on top plate 11, at the edge of first aperture 13
Extend downwardly multiple claws 14 to bend inwards.More specifically, claw 14 is with top plate 11 in substantially vertical.Preferably, shell 1
For metal shell, shell 1 is Sheet Metal Part, the top plate 11 of shell 1, side plate 12 and from 11 first aperture 13 of top plate inwardly
The claw 14 of extension is metal plate integral structure.
Camera lens carries seat 2 between shell 1 and pedestal 3, and camera lens, which carries seat 2, has the second aperture, and the second aperture is hollow
Cylindrical shape is for accommodate simultaneously fixed lens, camera lens to carry seat 2 and camera lens is driven to move together.Second aperture and the first aperture 13 are general
For coaxial arrangement.Multiple first boss 21 upwardly extended are provided on the upper surface that camera lens carries seat 2；First boss 21 and institute
Stating has the first gap between 11 inner wall of top plate of shell 1.First boss 21 is on the upper surface that camera lens carries seat 2 in uniform row
Cloth.
The fit structure of 11 inner wall of top plate of first boss 21 and shell 1 is the first position limiting structure, in collision to camera lens
Seat 2 is carried to be limited.There is the first spacing L1 between the top surface of first boss 21 and 11 inner wall of top plate of shell 1.
Preferably, the top surface of first boss 21 is plane, and, multiple first boss parallel with 11 inner wall of the top plate of shell 1
The sum of 21 top surface area is the collision area of the first position limiting structure.
Carrying in camera lens also has card slot 24 corresponding with the claw 14 of shell 1 on seat 2, claw 14 is located in card slot 24.
It is the second position limiting structure that camera lens, which carries the card slot 24 of seat 2 and the fit structure of the claw 14 of shell 1, carries seat 2 to camera lens in collision
It is limited.Claw 14 and card slot 24 have the second spacing L2 in the up-down direction.Specifically, the second spacing L2 is claw 14
Lower end surface carries the distance of the bottom surface of the card slot 24 of seat 2 to camera lens.
First spacing L1 is 0.05mm ~ 0.5mm.
The second spacing L2 is 0.05mm ~ 0.5mm.Preferably, the first spacing L1 is equal to the second spacing L2.
Preferably, the bottom surface for the card slot 24 that the lower end surface of claw 14 carries seat 2 with camera lens is parallel face；And to claw 14
Polishing deburring processing has been made in lower end surface, to prevent the lower end surface of claw 14 to have the structures such as spine.In addition, claw 14 and card slot
24 cooperation plays antitorque effect on the direction of horizontal plane, on horizontal plane direction and outer for limiting camera lens load seat 2
The collision of shell 1.
Further, in order to increase the contact area of claw 14 Yu card slot 24, the lower end of claw 14 also has bent over arms
(not shown), bent over arms are parallel with the bottom surface of card slot 24.Claw 14 is collided by bent over arms and the bottom surface of card slot 24
Limit.Since 14 thickness of claw of shell 1 is generally relatively thin, the lower end surface area of claw 14 is smaller.And claw 14 passes through bent over arms
Collision limit is carried out with the bottom surface of card slot 24, collision area is larger, and dust risk is lower.
Voice coil motor further includes upper elastic slice and lower elastic slice (not shown), and the upper elastic slice setting carries on seat 2 in camera lens
Between end face and shell 1, the lower elastic slice is arranged between camera lens carrier lower end surface and pedestal 3.Upper elastic slice outer ring is mounted on outer
On shell 1, upper elastic slice inner ring is mounted on the upper surface that camera lens carries seat 2.Lower elastic slice outer ring is installed on the base 3, the inner ring of lower elastic slice
It is mounted on camera lens and carries 2 lower end surface of seat.Upper elastic slice, lower elastic slice are respectively that camera lens carries the offer resilient support of seat 2.Camera lens carries the upper of seat 2
End face also has multiple second boss, and location hole corresponding with the second boss is provided on the upper elastic slice.Upper elastic slice is logical
It crosses location hole to be positioned with camera lens load seat 2, and further, be adhesively fixed by glue.
Voice coil motor further includes coil, at least one drive magnet and pcb board (not shown).
Coil is fixed on camera lens and carries the periphery of seat 2, and is generally fixed to the side wall that camera lens carries seat 2.Drive magnet is located at mirror
Head carries between the side wall of seat 2 and the side plate 12 of shell 1.Coil and drive magnet can make after coil energization as actuator
Camera lens carries seat 2 and moves up and down.Upper elastic slice and lower elastic slice are respectively that camera lens carries the offer resilient support of seat 2.
Technical solution provided by the embodiments of the present application carries the collision between seat in above-below direction for shell and camera lens, leads to
Improvement is crossed, carrying shell and camera lens between seat has double position limiting structures: the fit structure of the top plate inner wall of first boss and shell
For the first position limiting structure, it is the second position limiting structure that camera lens, which carries the card slot of seat and the fit structure of the claw of shell,.Pass through double limits
Structure increases shell and camera lens carries the contact-impact point between seat in above-below direction and collides area, reduces camera lens and carries on seat
Lower movement and the severity and dust risk that surface damage is collided when shell localized bumps, even avoid camera module to reduce
Stain is generated in imaging.
Embodiment two
The present embodiment is to carry collision of the seat 2 at horizontal plane direction (i.e. X, Y direction) for camera lens to improve.
Embodiment one using claw 14 and card slot cooperation, for limit camera lens carry seat 2 on horizontal plane direction with shell 1
Collision.But claw 14 is usually the shell 1 of sheet metal structural by bending forming, due to sheet-metal formed technique, in edge
General flash that all can be jagged or sharp, certainly will be easy to have an impact collision, lead to clast.Therefore, in technique
It needs to increase post-processing, its end face is made to meet certain roughness requirements, edge carries out polishing deburring processing.This undoubtedly increases
Corresponding process is added.
What is different from the first embodiment is that in the present embodiment, shell 1 and camera lens carry the collision in the horizontal direction of seat 2 and limit
It is not the limit by claw 14 and card slot.
As shown in Fig. 4 ~ Fig. 7, the side wall that camera lens carries seat 2 has to multiple first sides that the side plate 12 of shell 1 extends to limit
Position boss 22.There is third spacing L3 between the lateral surface 22b of multiple first lateral Displacement boss and the side plate 12 of shell 1, the
Three spacing L3 are 0.05mm ~ 0.5mm.Camera lens carry seat 2 occur horizontal plane both direction movement when, by multiple first sides to
Positive stop lug boss 22 and the cooperation of the side plate 12 of shell 1 are limited.Preferably, the lateral surface 22b of the first lateral Displacement boss with
The side plate 12 of shell 1 is parallel.
Preferably, multiple first lateral Displacement boss 22 include carrying the side wall arrangement of seat 2 in camera lens and being located at X-direction
On the first configured left boss and the first right boss, be used to carry seat 2 to shell 1 and camera lens and limited in the collision of X-direction
It is fixed.Multiple first lateral Displacement boss 22 further include the side wall arrangement in camera lens load seat 2 and first in Y direction
Front boss and the first rear boss are used to be defined shell 1 and camera lens load seat 2 in the collision of Y direction.First left side is convex
Platform, the first right boss, the first front boss, the first rear boss quantity can be one, be also possible to multiple, Fig. 5 only illustrates
Their quantity is respectively one out.
And for shell 1 and camera lens carry between seat 2 space Z-direction (i.e. up and down direction) collision position limiting structure,
The fit structure of 2 first boss 21 and 11 inner wall of top plate of shell 1 of seat can be carried using the camera lens in embodiment one: being carried in camera lens
Multiple first boss 21 upwardly extended are provided on the upper surface of seat 2；Between first boss 21 and 11 inner wall of top plate of shell 1
With the first spacing.The fit structure of 11 inner wall of top plate of first boss 21 and shell 1 is the first position limiting structure, in collision pair
Camera lens carries seat 2 and carries out Z-direction limit.There is the first spacing between the top surface of first boss 21 and 11 inner wall of top plate of shell 1.
First lateral Displacement boss 22 can be the different boss structures carried on seat 2 positioned at camera lens from first boss 21.But
More preferred scheme is: in order to keep structure simpler, camera lens carries multiple first lateral Displacement boss 22 of the side wall of seat 2,
11 inner wall of top plate of shell 1 also while upwards extends.The top surface 22a of first lateral Displacement boss exceeds camera lens and carries seat 2
Upper surface, and act as the position-limiting action of first boss 21.The top surface 22a of first lateral Displacement boss and the top plate 11 of shell 1
The fit structure of inner wall is the first position limiting structure, carries seat 2 to camera lens in collision and carries out Z-direction limit.Seat 2 is carried in camera lens to send out
When the movement of unboiled water plane both direction, pass through the side plate 12 of the lateral surface and shell 1 of multiple first lateral Displacement boss 22
Cooperation is limited.
The present embodiment is arranged multiple first lateral Displacement boss in the side wall that camera lens carries seat, passes through the side plate and mirror of shell
The first lateral Displacement boss that head carries seat collides limit, carries the collision between seat card slot instead of the claw and camera lens of shell and limits
Position.Since the impingement area of the side plate of shell does not have sharp flash, the limit relative to claw and card slot has advantage, and saves
The aftertreatment technology additional to claw has been saved, by improving the voice coil motor optimization of inside structure point of impingement and collision mode, thus
Reduce the risk that camera module generates stain.
Embodiment three
The present embodiment is also to carry collision of the seat 2 at horizontal plane direction (i.e. X, Y direction) for camera lens to improve.With reality
It applies unlike example two, embodiment with camera lens second is that carry the first lateral Displacement boss 22 of seat 2 by 12 inside of side plate of shell 1
Collision limit.The present embodiment limits third is that being collided by the second side that pedestal 3 and camera lens carry seat 2 to positive stop lug boss 23.
As shown in Fig. 8 ~ Figure 11, in the present embodiment, there are the multiple limited blocks 31 upwardly extended on pedestal 3, camera lens carries
The side wall of seat 2 has multiple second sides to positive stop lug boss 23.
Preferably, the second side includes carrying the side wall of seat 2, and second be located in X-direction in camera lens to positive stop lug boss 23
Configured left boss and the second right boss, they are used to carry seat 2 to shell 1 and camera lens and be defined in the collision of X-direction.Second
Lateral Displacement boss 23 further include camera lens carry seat 2 side wall, and be located at Y direction on the second front boss and the second rear boss,
They are used to carry seat 2 to shell 1 and camera lens and be defined in the collision of Y direction.
Multiple limited blocks 31 on pedestal 3 are corresponding with the position of multiple second side to positive stop lug boss 23 on camera lens load seat 2.
Limited block 31 and the second side carry the movement that horizontal plane both direction occurs for seat 2 in camera lens to having gap between positive stop lug boss 23
When, it is limited by multiple second sides to positive stop lug boss 23 and the cooperation of the limited block 31 on pedestal 3.Preferably, second side
It is parallel with the mating surface of limited block 31 on pedestal 3 to positive stop lug boss 23.
Camera lens carry seat 2 the second side between positive stop lug boss 23 and the limited block 31 of pedestal 3 have the 4th spacing L4, the 4th
The minimum value of spacing L4 is 0.1mm, to avoid assembling interference.4th spacing L4 preferably range is 0.1mm ~ 0.5mm.
When camera lens carries seat 2 by external loads, so that it may carry seat 2 in horizontal plane XY both direction by pedestal 3 and camera lens
It is limited, carries generation material clast caused by friction of the seat 2 here between two plastic parts to reduce pedestal 3 and camera lens
The risk of (dust).In addition the structure process is simple, is easily assembled, and has certain dust-proof effect.
In the side wall that camera lens carries seat multiple second sides are arranged to positive stop lug boss in the present embodiment, by the limited block of pedestal with
The second side that camera lens carries seat is collided to positive stop lug boss to be limited, and is carried the collision between seat card slot instead of the claw and camera lens of shell and is limited
Position.Due to limited block and the second side flash all not sharp to the impingement area of positive stop lug boss, relative to claw and card slot
Limit has advantage, and saves the aftertreatment technology additional to claw, by improving the collision of voice coil motor optimization of inside structure
Point and collision mode, to reduce the risk that camera module generates stain.
Example IV
As further embodiment, in order to carry seat 2 in the collision of horizontal plane direction (i.e. X, Y direction) to camera lens
It improves, reduces the risk for generating material clast (dust).
In the present embodiment, while implementing the solution in above embodiments two and embodiment three.Simultaneously in pedestal 3
Between camera lens load seat 2 and horizontal plane XY both direction is carried out between shell 1 and camera lens load seat 2 to be limited.
The side wall that camera lens carries seat 2 has the first lateral Displacement boss 22 and the second side to positive stop lug boss 23, the first side simultaneously
It is located on the side wall different height that camera lens carries seat 2 to positive stop lug boss 22 and the second side to positive stop lug boss 23.Camera lens carries seat 2
There is gap, third spacing L3 is 0.05mm ~ 0.5mm between multiple first lateral Displacement boss 22 and the side plate 12 of shell 1.Mirror
The second side that head carries seat 2 is with the 4th spacing L4, the 4th spacing L4 between positive stop lug boss 23 and the limited block 31 of pedestal 3
0.1mm~0.5mm。
The present embodiment, while horizontal plane XY is carried out between pedestal and camera lens load seat and between shell and camera lens load seat
Both direction is limited.It carries seat in camera lens to be subjected to displacement and when with pedestal and cover attack, collision area is larger, therefore unit
The stress of area becomes smaller, and increases the contact-impact point between camera lens load seat in horizontal plane XY both direction by double position limiting structures
With collision area, the severity and dust risk of collision surface damage are reduced.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (8)
1. a kind of voice coil motor with double position limiting structures, which is characterized in that the voice coil motor includes that shell and camera lens carry seat；
The shell is hood-like structure, including top plate and side plate, has the first aperture on the top plate, in first aperture
Edge extends downwardly multiple claws to bend inwards；
The camera lens, which carries seat tool, the second aperture, the camera lens carry be provided on the upper surface of seat it is multiple upwardly extend it is first convex
Platform；There is the first spacing between the first boss and the top plate inner wall of the shell；
The camera lens, which carries, also has card slot corresponding with the claw on seat, the claw is located at interior card slot and claw and card
Slot has the second spacing in the up-down direction.
2. voice coil motor according to claim 1, which is characterized in that first spacing is 0.05mm ~ 0.5mm.
3. voice coil motor according to claim 1, which is characterized in that first spacing is equal to the second spacing.
4. voice coil motor according to claim 1, which is characterized in that the shell is metal shell.
5. voice coil motor according to claim 1, which is characterized in that the top surface of the first boss be plane, and with it is outer
The top plate inner wall of shell is parallel.
6. voice coil motor according to claim 1, which is characterized in that the lower end of the claw also has bent over arms, described
Bent over arms is parallel with the bottom surface of card slot.
7. voice coil motor according to claim 1, which is characterized in that the voice coil motor further includes upper elastic slice and lower bullet
Piece, the upper elastic slice setting carry between seat upper surface and shell in camera lens, the lower elastic slice setting in camera lens carrier lower end surface and
Between pedestal.
8. voice coil motor according to claim 7, which is characterized in that the upper surface that the camera lens carries seat also has multiple the
Two boss are provided with location hole corresponding with the second boss on the upper elastic slice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821954575.7U CN209184460U (en) | 2018-11-26 | 2018-11-26 | A kind of voice coil motor with double position limiting structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821954575.7U CN209184460U (en) | 2018-11-26 | 2018-11-26 | A kind of voice coil motor with double position limiting structures |
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| Publication Number | Publication Date |
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| CN209184460U true CN209184460U (en) | 2019-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821954575.7U Active CN209184460U (en) | 2018-11-26 | 2018-11-26 | A kind of voice coil motor with double position limiting structures |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410974A (en) * | 2021-07-23 | 2021-09-17 | 辽宁中蓝光电科技有限公司 | Triaxial OIS closed-loop motor and control method thereof |
| WO2023216969A1 (en) * | 2022-05-09 | 2023-11-16 | 维沃移动通信有限公司 | Camera motor and electronic device |
-
2018
- 2018-11-26 CN CN201821954575.7U patent/CN209184460U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410974A (en) * | 2021-07-23 | 2021-09-17 | 辽宁中蓝光电科技有限公司 | Triaxial OIS closed-loop motor and control method thereof |
| WO2023216969A1 (en) * | 2022-05-09 | 2023-11-16 | 维沃移动通信有限公司 | Camera motor and electronic device |
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