CN107124085A - A kind of magnetic structure of loop circuit voice coil motor - Google Patents
A kind of magnetic structure of loop circuit voice coil motor Download PDFInfo
- Publication number
- CN107124085A CN107124085A CN201710485629.3A CN201710485629A CN107124085A CN 107124085 A CN107124085 A CN 107124085A CN 201710485629 A CN201710485629 A CN 201710485629A CN 107124085 A CN107124085 A CN 107124085A
- Authority
- CN
- China
- Prior art keywords
- yoke
- magnet
- voice coil
- seat
- coil motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 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 claims abstract description 15
- 239000007769 metal material Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012407 engineering method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
Abstract
The invention discloses a kind of magnetic structure of loop circuit voice coil motor, the loop circuit voice coil motor includes shell, carries seat, yoke one, magnet, pedestal, yoke two, coil and circuit board；The magnetic structure includes the yoke one and the yoke two；Wherein, yoke one is arranged on the load seat, and yoke two is arranged on the pedestal；Yoke one and yoke two are located at the both sides of the magnet respectively.The yoke carried on seat is installed in the present invention magnet is drawn to yoke, magnet can assembled to when carrying on seat, allow magnet stably to bear against the reference plane carried on seat using the suction between yoke, instead of the action using tool pressure holding, simplify assembling engineering method and reduce assembly cost.Double yokes in the present invention can make magnetic density higher, and increase passes perpendicularly through the density of line of magnetic force and component of electric current direct of travel, reach the effect of increase motor drive power.
Description
Technical field
The present invention relates to a kind of magnetic structure of loop circuit voice coil motor.
Background technology
As mobile phone camera level turns into the important step of measurement mobile phone quality, each mobile phone brand is directed to the matter of camera
Amount requires also more and more higher.And voice coil motor is the heart of cell-phone camera in front, the quality of voice coil motor directly affects camera
Performance, and mobile phone be thinned trend under, mobile phone still must endure as various mechanical shocks；As shown in figure 1, conventional elastic piece
Formula voice coil motor include shell 1, upper cover plate 2, drive magnet 3, upper spring 4, circuit board 5, carry seat 6, induced magnet 7, coil 8,
Lower spring 9, the grade component of pedestal 10, its complicated and internal spring is easily deformed, so that camera appearance can not
The phenomenon of focusing.And spring-piece type voice coil motor is due to having a plurality of springs inside motor, when user is intended to quickly be moved
When optical lens is focused, it is difficult to the problem of avoiding the simple harmonic motion of spring and then cause focusing stabilization time time-consuming longer.
Because motor quality requirement is improved constantly, voice coil motor manufacturer proceeds by the research and development of no spring-piece type voice coil motor,
Such as Fig. 2, include shell 11 without spring-piece type voice coil motor in the prior art, carry seat 12, ball 13, magnet 14, pedestal 15, yoke 16
With the grade component of coil 17, it has placement single or a plurality of magnet 14 in the single side for carrying seat 12, the effect of magnet 14 be with
The coil of energization produces the reaction force of Lorentz force to promote magnet to move and magnet is assembled into load seat, therefore drives
The optical lens carried on making moves to realize the function of optical focusing together, and therefore, the size of this driving force can determine motor
The speed for speed of focusing.Another induced magnet acting as Hall original paper in the voice coil motor of loop circuit of magnet, therefore, sense
The intensity and the linearity for answering magnetic field can directly affect the precision of loop circuit voice coil motor.
In addition, have a yoke to be assembled on pedestal without spring-piece type voice coil motor in the prior art, its effect is to allow load
Magnet on seat is drawn to yoke and produces a lateral suction to ensure that load seat can stably set with pedestal during motion
The moving on rails counted.And the magnetic line of force is attracted on Hall original paper, raising is used and face normal direction is detected by Hall original paper
The density of line of magnetic force of amount, to increase the resolution ratio during control of loop circuit.
The content of the invention
For problems of the prior art, it is an object of the invention to provide a kind of magnetic circuit of loop circuit voice coil motor
Structure, it efficiently solves problems of the prior art.
To achieve the above object, the present invention uses following technical scheme：
A kind of magnetic structure of loop circuit voice coil motor, the loop circuit voice coil motor include shell, carry seat, yoke one,
Magnet, pedestal, yoke two, coil and circuit board；The magnetic structure includes the yoke one and the yoke two；Wherein, magnetic
Yoke one is arranged on the load seat, and yoke two is arranged on the pedestal；Yoke one and yoke two are respectively positioned at the magnet
Both sides.
Further, the yoke one and the yoke two are made by the metal material of magnetic conductivity.
Further, the yoke one and the yoke two at least respectively have a face parallel with the magnet surface.
Further, one or a plurality of yokes one are installed on the load seat.
Further, one or a plurality of yokes two are installed on the pedestal.
The present invention has following advantageous effects：
The yoke carried on seat is installed in the present invention magnet is drawn to yoke, when can be on assembling magnet to load seat,
Allow magnet stably to bear against the reference plane carried on seat using the suction between yoke, instead of using the dynamic of tool pressure holding
Make, simplify assembling engineering method and reduce assembly cost.
Double yokes in the present invention can make magnetic density higher, and increase passes perpendicularly through the density of line of magnetic force of electric current direct of travel
With component, the effect of increase motor drive power is reached.
Double yokes in the present invention can make magnetic density higher, and increase passes perpendicularly through the magnetic line of force that Hall original paper detects surface
Quantity, stable magnetic line of force distribution can make Hall original paper detect relatively linear magnetic field intensity change during magnet movement
Change, resolution ratio and the linearity that motor is controlled in loop circuit can be effectively improved, optimize the positional precision of loop circuit motor.
Brief description of the drawings
Fig. 1 is the Split type structure schematic diagram of spring-piece type voice coil motor in the prior art；
Fig. 2 is the Split type structure schematic diagram without spring-piece type voice coil motor in the prior art；
Fig. 3 is the Split type structure schematic diagram of loop circuit voice coil motor of the present invention；
Fig. 4 is structural representation of the magnetic structure in confined state of loop circuit voice coil motor of the present invention.
Embodiment
Below, refer to the attached drawing, is more fully illustrated to the present invention, shown in the drawings of the exemplary implementation of the present invention
Example.However, the present invention can be presented as a variety of multi-forms, the exemplary implementation for being confined to describe here is not construed as
Example.And these embodiments are to provide, so that the present invention is fully and completely, and it will fully convey the scope of the invention to this
The those of ordinary skill in field.
As shown in figure 3, the invention provides a kind of magnetic structure of loop circuit voice coil motor, loop circuit voice coil motor includes
Shell 18, load seat 19, yoke 1, magnet 21, pedestal 22, yoke 2 23, coil 24 and circuit board 25；Magnetic structure includes magnetic
Yoke 1 and yoke 2 23；Wherein, yoke 1, which is arranged on, is carried on seat 19, and yoke 2 23 is arranged on pedestal 22；Yoke 1
It is located at the both sides of magnet 21 respectively with yoke 2 23.
Yoke 1 and yoke 2 23 are made by the metal material of magnetic conductivity.
Yoke 1 and yoke 2 23 at least respectively have a face parallel with the surface of magnet 21.
Carry and one or a plurality of yokes 1 are installed on seat 19.
One or a plurality of yokes 2 23 are installed on pedestal 22.
The yoke 1 carried on seat 19 is installed in the present invention can make magnet 21 be drawn to yoke 1, can be in assembling magnet
21, to when carrying on seat 19, allow magnet 21 stably to bear against the reference plane carried on seat 19 using with the suction between yoke 1,
The action using tool pressure holding is instead of, assembling engineering method is simplified and reduces assembly cost.
It is described above simply to illustrate that of the invention, it is understood that the invention is not limited in above example, meet
The various variants of inventive concept are within protection scope of the present invention.
Claims (5)
1. a kind of magnetic structure of loop circuit voice coil motor, the loop circuit voice coil motor includes shell, carries seat, yoke one, magnetic
Iron, pedestal, yoke two, coil and circuit board；Characterized in that, the magnetic structure includes the yoke one and the yoke
Two；Wherein, yoke one is arranged on the load seat, and yoke two is arranged on the pedestal；Yoke one and yoke two are located at respectively
The both sides of the magnet.
2. the magnetic structure of loop circuit voice coil motor according to claim 1, it is characterised in that the yoke one and described
Yoke two is made by the metal material of magnetic conductivity.
3. the magnetic structure of loop circuit voice coil motor according to claim 1, it is characterised in that the yoke one and described
Yoke two at least respectively has a face parallel with the magnet surface.
4. the magnetic structure of loop circuit voice coil motor according to claim 1, it is characterised in that be provided with the load seat
One or a plurality of yokes one.
5. the magnetic structure of loop circuit voice coil motor according to claim 1, it is characterised in that be provided with the pedestal
One or a plurality of yokes two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485629.3A CN107124085A (en) | 2017-06-23 | 2017-06-23 | A kind of magnetic structure of loop circuit voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485629.3A CN107124085A (en) | 2017-06-23 | 2017-06-23 | A kind of magnetic structure of loop circuit voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107124085A true CN107124085A (en) | 2017-09-01 |
Family
ID=59719748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710485629.3A Pending CN107124085A (en) | 2017-06-23 | 2017-06-23 | A kind of magnetic structure of loop circuit voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107124085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707083A (en) * | 2017-09-30 | 2018-02-16 | 厦门新鸿洲精密科技有限公司 | A kind of structure for sensing voice coil motor movement locus |
| CN110138174A (en) * | 2019-05-13 | 2019-08-16 | 辽宁中蓝电子科技有限公司 | A kind of parallelogram principle closed loop motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0646555A (en) * | 1991-10-31 | 1994-02-18 | Hitachi Metals Ltd | Swing-action voice coil motor |
| CN1949640A (en) * | 2006-10-30 | 2007-04-18 | 磁晶科技股份有限公司 | Voice coil motor and method for controlling displacement by magnetic spring force |
| CN104734452A (en) * | 2013-12-23 | 2015-06-24 | 魏立鼎 | Voice coil motor and lens driving device |
-
2017
- 2017-06-23 CN CN201710485629.3A patent/CN107124085A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0646555A (en) * | 1991-10-31 | 1994-02-18 | Hitachi Metals Ltd | Swing-action voice coil motor |
| CN1949640A (en) * | 2006-10-30 | 2007-04-18 | 磁晶科技股份有限公司 | Voice coil motor and method for controlling displacement by magnetic spring force |
| CN104734452A (en) * | 2013-12-23 | 2015-06-24 | 魏立鼎 | Voice coil motor and lens driving device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707083A (en) * | 2017-09-30 | 2018-02-16 | 厦门新鸿洲精密科技有限公司 | A kind of structure for sensing voice coil motor movement locus |
| CN110138174A (en) * | 2019-05-13 | 2019-08-16 | 辽宁中蓝电子科技有限公司 | A kind of parallelogram principle closed loop motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180321 Address after: 214223 Yixing City, Wuxi, Jiangsu Province, Lake Father Town, Tang Province Road No. 1888 Applicant after: YIXING GUIXIN MAGNETOELECTRIC HI-TECH CO.,LTD. Address before: 214223 Yixing City, Wuxi, Jiangsu Province, Lake Father Town, Tang Province Road No. 1888 Applicant before: JIANGSU XINXINXING TECHNOLOGY CO.,LTD. |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170901 |
|
| RJ01 | Rejection of invention patent application after publication |