CN206865337U - 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
- CN206865337U CN206865337U CN201720739113.2U CN201720739113U CN206865337U CN 206865337 U CN206865337 U CN 206865337U CN 201720739113 U CN201720739113 U CN 201720739113U CN 206865337 U CN206865337 U CN 206865337U
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- 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.)
- Expired - Fee Related
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- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model 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 utility model magnet is drawn to yoke, magnet can assembled to when carrying on seat, magnet is allowed stably to bear against the reference plane carried on seat using the suction between yoke, the action using tool pressure holding is instead of, assembling engineering method is simplified and reduces assembly cost.Double yokes in the utility model 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
It the utility model is related to a kind of magnetic structure of loop circuit voice coil motor.
Background technology
Turn into the important step for weighing mobile phone quality as mobile phone camera is horizontal, 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 slimming trend under, mobile phone still must endure as various mechanical shocks；As shown in figure 1, conventional elastic piece
Formula voice coil motor includes shell 1, upper cover plate 2, drive magnet 3, upper spring 4, circuit board 5, carries seat 6, induced magnet 7, coil 8,
Lower spring 9, the grade component of pedestal 10, its complicated and internal spring are easily deformed, so that camera appearance can not
The phenomenon of focusing.And spring-piece type voice coil motor is due to a plurality of springs being present 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 causing focusing stabilization time time-consuming longer.
Because motor quality requirement improves 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 in the single side for carrying seat 12 places single or a plurality of magnet 14, the effect of magnet 14 be with
The coil of energization produces the reaction force of Lorentz force to promote magnet mobile and magnet is assembled into and carried in 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 in magnetic field and the linearity is answered to 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.
Utility model content
For problems of the prior art, the purpose of this utility model is to provide a kind of loop circuit voice coil motor
Magnetic structure, it efficiently solves problems of the prior art.
To achieve the above object, the utility model 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 utility model has following advantageous effects：
The yoke carried on seat is installed in the utility model magnet is drawn to yoke, can be on assembling magnet to load seat
When, allow magnet stably to bear against the reference plane carried on seat using the suction between yoke, instead of using tool pressure holding
Action, simplify assembling engineering method and reduce assembly cost.
Double yokes in the utility model can make magnetic density higher, and increase passes perpendicularly through the magnetic line of force of electric current direct of travel
Density and component, reach the effect of increase motor drive power.
Double yokes in the utility model can make magnetic density higher, and increase passes perpendicularly through the magnetic on Hall original paper detecting surface
Line of force quantity, it is strong that the distribution of the stable magnetic line of force can make Hall original paper detect relatively linear magnetic field during magnet movement
Degree change, can effectively improve resolution ratio and the linearity that motor controls in loop circuit, 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 the utility model loop circuit voice coil motor；
Fig. 4 is structural representation of the magnetic structure in confined state of the utility model loop circuit voice coil motor.
Embodiment
Below, refer to the attached drawing, the utility model is more fully illustrated, shown shown in the drawings of of the present utility model
Example property embodiment.However, the utility model can be presented as a variety of multi-forms, it is not construed as being confined to what is described here
Exemplary embodiment.And these embodiments are to provide, so that the utility model is fully and completely, and will be of the present utility model
Scope is fully communicated to one of ordinary skill in the art.
As shown in figure 3, the utility model provides a kind of magnetic structure of loop circuit voice coil motor, loop circuit voice coil motor
Including shell 18, carry seat 19, yoke 1, magnet 21, pedestal 22, yoke 2 23, coil 24 and circuit board 25；Magnetic structure bag
Include 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 and yoke 2 23 respectively be located at magnet 21 both sides.
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 utility model can make magnet 21 be drawn to yoke 1, can assemble
Magnet 21 allows magnet 21 to utilize the benchmark for stably bearing against and being carried on seat 19 with the suction between yoke 1 to when carrying on seat 19
Face, the action using tool pressure holding is instead of, simplify assembling engineering method and reduce assembly cost.
It is described above simply to illustrate that the utility model, it is understood that the utility model be not limited to the above implementation
Example, meets the various variants of the utility model thought within the scope of protection of the utility model.
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 |
|---|---|---|---|
| CN201720739113.2U CN206865337U (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 |
|---|---|---|---|
| CN201720739113.2U CN206865337U (en) | 2017-06-23 | 2017-06-23 | A kind of magnetic structure of loop circuit voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206865337U true CN206865337U (en) | 2018-01-09 |
Family
ID=60827581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720739113.2U Expired - Fee Related CN206865337U (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) | CN206865337U (en) |
-
2017
- 2017-06-23 CN CN201720739113.2U patent/CN206865337U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180327 Address after: 214223 Yixing City, Wuxi, Jiangsu Province, Lake Father Town, Tang Province Road No. 1888 Patentee after: Gui Xin Magnetoelectric Hi-tech Co., Ltd. Address before: 214223 Yixing City, Wuxi, Jiangsu Province, Lake Father Town, Tang Province Road No. 1888 Patentee before: Jiangsu Xinxin Star Technology Co. Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20210623 |