CN107040121A - A kind of voice coil motor - Google Patents
A kind of voice coil motor Download PDFInfo
- Publication number
- CN107040121A CN107040121A CN201710322096.7A CN201710322096A CN107040121A CN 107040121 A CN107040121 A CN 107040121A CN 201710322096 A CN201710322096 A CN 201710322096A CN 107040121 A CN107040121 A CN 107040121A
- Authority
- CN
- China
- Prior art keywords
- coil
- mover
- stator
- magnetite
- pedestal
- 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.)
- Granted
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses a kind of voice coil motor, it includes：At least two movers that one pedestal, a yoke plate, a support, at least two stators and correspondence stator are set, pedestal is combined together with yoke plate above and below, the support, stator and mover are arranged in pedestal and yoke plate, the periphery of the support is equidistantly fixed with the mover, each stator is fixed on the pedestal immediately below each mover, one of stator and mover are coil, and another is magnetite, and the magnetic pole of the magnetic induction line direction after each coil electricity and corresponding magnetite is on same longitudinal axis.Stator is correspondingly set up and down by the present invention with mover, one of stator and mover are coil, another is magnetite, according to Ampere's law, the sense of current after coil electricity determines the N poles of coil upper or under, and the magnetic pole of the coil and the magnetite thereon or under it is attracting or repels each other, and drive support is upwardly or downwardly acted, supporting band index glass head is moved up and down change focal length, realize the purpose of sharp image.
Description
Technical field
The present invention relates to a kind of voice coil motor.
Background technology
Voice coil motor has high frequency sound, high-precision feature.Its cardinal principle is in a permanent-magnetic field, by changing
The DC current of motor interior loop, to control the stretch position of spring leaf, so as to drive up and down motion, realizes focusing.Mobile phone is taken the photograph
As head widely realizes automatic focusing function using VCM, the position of camera lens can be adjusted by VCM, clearly image is presented.
Existing voice coil motor is all the side that coil is wound on to support, and coil periphery set magnetite, i.e. magnetite with
Coil forms horizontal setting, and the coil after energization is surrounded to form magnetic field by magnetite, according to left hand rule, and the coil of energization passes through magnetic
When, the sense of current produced after the power perpendicular to magnetic field line, i.e. coil electricity can be produced, can make support formed to
Upper or downward power, makes supporting band index glass head move up and down change focal length, realizes the purpose of sharp image.
The present inventor is in line with constantly bringing forth new ideas and improveing to product, deeply design, and actively research has a fling at and develops design
Go out the present invention.
The content of the invention
It is an object of the invention to provide a kind of entirely different with existing voice coil motor design principle, but it can reach identical effect
The voice coil motor of fruit.
In order to reach above-mentioned purpose, solution of the invention is：
A kind of voice coil motor, it includes：One pedestal, a yoke plate, a support, at least two stators and correspondence stator set at least two
Mover, pedestal with yoke plate in being combined together up and down, and the support, stator and mover are arranged in pedestal and yoke plate, the support
Periphery be equidistantly fixed with the mover, each stator is fixed on the pedestal immediately below each mover, and stator and mover are wherein
One of be coil, another is magnetite, and the magnetic pole of the magnetic induction line direction after each coil electricity and corresponding magnetite is in same longitudinal axis
On.
Shell fragment is additionally provided between the cradle top surface and the inner top surface of yoke plate, is also set between cradle bottom surface and base top surface
There is lower shell fragment.
The periphery spaced set of the support has at least two baffle plates of corresponding mover, and each mover is correspondingly arranged at gear respectively
The bottom surface of plate.
The mover is coil, and the coil is runway type coil, and the top surface of coil is fixed on the bottom surface of baffle plate, described fixed
Son is magnetite, and a wherein magnetic pole for magnetite is fixed on pedestal, and another magnetic pole is towards the bottom surface of runway type coil.
The bottom surface of the baffle plate is down arranged at intervals with two projections, and the coil is wrapped in formation runway molded line on two projections
Circle.
The coil of racetrack is molded using printing, and its top surface is affixed to the bottom surface of baffle plate.
The mover is magnetite, and a wherein magnetic pole for each magnetite is fixed on the bottom surface of baffle plate, and the stator is runway molded line
Circle, coil is longitudinally wound, and the bottom surface of coil is fixed on pedestal.
Groove of the top surface of the pedestal provided with each stator of correspondence, each stator corresponding matching is fixed in each groove.
After said structure, stator is correspondingly set up and down by voice coil motor of the present invention with mover, stator and mover
One of them is coil, and another is magnetic induction line direction after magnetite, and each coil electricity with the magnetic pole of corresponding magnetite same
On longitudinal axis, so, according to Ampere's law, the sense of current after each coil electricity determines that the N poles of coil, should upper or under
Coil and corresponding magnetite thereon or under it be attracting or the effect of repelling each other, and drives support downwards or action upwards, makes support
Drive camera lens to move up and down change focal length, realize the purpose of sharp image.It is of the invention complete with existing voice coil motor design principle
Complete different, existing voice coil motor is, according to left hand rule, by coil and magnetite in horizontally disposed, to pass through coil and the long-range navigation of magnet
Hereby the effect of power (Lorentz Force) makes support do axial movement.
Brief description of the drawings
Fig. 1 is the exploded view of first embodiment of the invention.
Fig. 2 is the constitutional diagram of first embodiment of the invention.
Fig. 3 is the top view of first embodiment of the invention.
Fig. 4 is the sectional view of first embodiment of the invention.
Fig. 5 is the exploded view of second embodiment of the invention.
Embodiment
In order to which technical scheme is explained further, the present invention is explained in detail below by specific embodiment
State.
As shown in Figures 1 to 5, present invention is disclosed a kind of voice coil motor, it includes the yoke plate set gradually from top to down
1st, upper shell fragment 2, support 3, lower shell fragment 4 and pedestal 5, pedestal 5 and yoke plate 1 in being combined together up and down, upper shell fragment 2, support 3 and under
Shell fragment 4 is arranged in pedestal 5 and yoke plate 1, support 3 can in being slided in yoke plate 1, the inner top surface of the top surface of support 3 and yoke plate 1 it
Between upper shell fragment 2 is set, lower shell fragment 4 is set between the bottom surface of support 3 and the top surface of pedestal 5.The outer ring spaced set of the support 3 have to
Few two movers 6, the pedestal 5 is provided with least two stators 7 just to mover 6, and one of stator 7 and mover 6 are coil
A, another is magnetite B, each loop A be powered after magnetic induction line direction and corresponding magnetite B magnetic pole on same longitudinal axis.It is described
The periphery spaced set of support 3 has at least two baffle plates 31 of corresponding mover 6, and each mover 6 is correspondingly arranged at baffle plate 31 respectively
Bottom surface.
As shown in Figures 1 to 4, it is the first embodiment of the present invention, wherein the mover 6 is loop A, the loop A is
Runway type coil, the top surface of loop A is fixed on the bottom surface of baffle plate 31, and loop A can have many with the mode that the bottom surface of baffle plate 31 is combined
Kind, two projections are down for example arranged at intervals with the bottom surface of baffle plate 31, loop A is wrapped in formation runway molded line on two projections
Circle.Or the coil of racetrack is directly printed into shaping, then top surface is affixed to the bottom surface of baffle plate.The stator 7 is magnetite B,
A magnetite B wherein magnetic pole is fixed on pedestal 5, groove 51 of the pedestal 5 provided with the correspondence magnetite B, magnetite B secure fits
In the groove 51, magnetite B N poles or S one of extremely towards loop A, the present embodiment by magnetite B N poles upward exemplified by
Explanation.
When loop A is powered, according to Ampere's law, if controlling the electric current of each loop A in clockwise direction, the coil
Down, the N poles of each loop A are repelled each other with the N poles of corresponding magnetite B below for A N poles, make loop A drive support 3 to move up；If
Control the electric current of each loop A in counterclockwise, then the N poles of the loop A upward, the S poles of the loop A and magnetite B N poles phase
Inhale, loop A can be made to drive support 3 down to move, upper shell fragment 2 provides reaction force with lower shell fragment 4, comes balance coil A and magnetic
The interaction force produced between stone B, makes support 3 be moved to predetermined position, the camera lens on support 3 is reached the mesh of focusing
's.If controlling the sense of current of each loop A to differ, each loop A can drive the formation of support 3 to rock, and can play camera lens stabilization
Effect.
As shown in figure 5, being the second embodiment of the present invention, wherein the mover 6 is magnetite B, each magnetite B a wherein magnetic
Pole is fixed on the bottom surface of baffle plate 31, and the present embodiment is fixed on the bottom surface of baffle plate 31 with each magnetite B N poles, S poles down exemplified by explanation.
The stator 7 is runway type coil, and coil 7 is longitudinally wound, and the bottom surface of loop A is fixed on pedestal 5, and pedestal 5 is provided with
The groove 51 of the correspondence loop A, the bottom surface secure fit of loop A is in the groove 51, the side of the combination of loop A and pedestal 5
Formula can have a variety of, for example, be up arranged at intervals with two projections in the groove 51 of pedestal 5, loop A is wrapped on two projections
Form runway type coil.Or the coil of racetrack is directly printed into shaping, then the groove 51 that bottom surface is affixed into pedestal 5 is pushed up
Face.
When loop A is powered, according to Ampere's law, if controlling the electric current of each loop A in clockwise direction, the coil
Down, upward, the S poles and surface magnetite B S poles of the loop A are repelled each other for S poles for A N poles, magnetite B is driven support 3 to moving up
It is dynamic；If controlling the electric current of each loop A in counterclockwise, the N poles of the loop A upward, the N poles of the loop A and surface
Magnetite B S is extremely attracting, and magnetite B can be made to drive support 3 down to move, and upper shell fragment 2 provides reaction force with lower shell fragment 4, comes
The interaction force produced between balance coil A and magnetite B, makes support 3 be moved to predetermined position, so that on support 3
Camera lens reaches the purpose of focusing.If controlling the sense of current of each loop A to differ, each loop A can drive the formation of support 3 to rock,
Camera lens stabilization can be played a part of.
Stator 7 is correspondingly set up and down by voice coil motor of the present invention with mover 6, and stator 7 is fixed on pedestal 5, and mover 6
It is fixed together with support 3, one of stator 7 and mover 6 are loop A, another is magnetite B, according to Ampere's law profit
It is mutually exclusive or attract each other with two magnetic poles of magnetite B opposite ends in the magnetic field produced with hot-wire coil A（Magnetic pole of the same name is mutually arranged
Reprimand, synonyms pole mutually attract）Move up the support 3 being combined together with mover 6, support 3 is driven on camera lens
Lower mobile change focal length, realizes the purpose of sharp image.
Above-described embodiment and schema and non-limiting product form of the invention and style, any art it is common
Appropriate change or modification that technical staff is done to it, all should be regarded as not departing from the patent category of the present invention.
Claims (8)
1. a kind of voice coil motor, it is characterised in that including：One pedestal, a yoke plate, a support, at least two stators and correspondence stator
At least two movers set, pedestal with yoke plate in being combined together up and down, and the support, stator and mover are arranged on pedestal and yoke
In plate, the periphery of the support is equidistantly fixed with the mover, and each stator is fixed on the pedestal immediately below each mover, stator and
One of mover is coil, and another is magnetite, and the magnetic induction line direction after each coil electricity exists with the magnetic pole of corresponding magnetite
On same longitudinal axis.
2. a kind of voice coil motor as claimed in claim 1, it is characterised in that：Between the cradle top surface and the inner top surface of yoke plate
Shell fragment is additionally provided with, lower shell fragment is additionally provided between cradle bottom surface and base top surface.
3. a kind of voice coil motor as claimed in claim 1 or 2, it is characterised in that：The periphery spaced set of the support has
At least two baffle plates of correspondence mover, each mover is correspondingly arranged at the bottom surface of baffle plate respectively.
4. a kind of voice coil motor as claimed in claim 3, it is characterised in that：The mover is coil, and the coil is runway
Type coil, the top surface of coil is fixed on the bottom surface of baffle plate, and the stator is magnetite, and a wherein magnetic pole for magnetite is fixed on pedestal
On, another magnetic pole is towards the bottom surface of runway type coil.
5. a kind of voice coil motor as claimed in claim 4, it is characterised in that：The bottom surface of the baffle plate is down arranged at intervals with two
Projection, the coil is wrapped in formation runway type coil on two projections.
6. a kind of voice coil motor as claimed in claim 4, it is characterised in that：The coil of racetrack is molded using printing, and it is pushed up
Face is affixed to the bottom surface of baffle plate.
7. a kind of voice coil motor as claimed in claim 3, it is characterised in that：The mover is magnetite, wherein the one of each magnetite
Magnetic pole is fixed on the bottom surface of baffle plate, and the stator is runway type coil, and coil is longitudinally wound, and the bottom surface of coil is fixed on base
On seat.
8. a kind of voice coil motor as claimed in claim 3, it is characterised in that：The top surface of the pedestal is provided with each stator of correspondence
Groove, each stator corresponding matching is fixed in each groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710322096.7A CN107040121B (en) | 2017-05-09 | 2017-05-09 | Voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710322096.7A CN107040121B (en) | 2017-05-09 | 2017-05-09 | Voice coil motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107040121A true CN107040121A (en) | 2017-08-11 |
| CN107040121B CN107040121B (en) | 2021-02-05 |
Family
ID=59537597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710322096.7A Active CN107040121B (en) | 2017-05-09 | 2017-05-09 | Voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107040121B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283396A (en) * | 2014-10-21 | 2015-01-14 | 深圳市世尊科技有限公司 | Voice coil motor for achieving optical vibration prevention through transverse movement |
| CN104362826A (en) * | 2014-10-31 | 2015-02-18 | 厦门新鸿洲精密科技有限公司 | Superposition type voice coil motor and process for manufacturing same |
| CN106505823A (en) * | 2016-11-01 | 2017-03-15 | 厦门新鸿洲精密科技有限公司 | Dual camera voice coil motor |
| CN206820629U (en) * | 2017-05-09 | 2017-12-29 | 厦门新鸿洲精密科技有限公司 | A kind of voice coil motor |
-
2017
- 2017-05-09 CN CN201710322096.7A patent/CN107040121B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283396A (en) * | 2014-10-21 | 2015-01-14 | 深圳市世尊科技有限公司 | Voice coil motor for achieving optical vibration prevention through transverse movement |
| CN104362826A (en) * | 2014-10-31 | 2015-02-18 | 厦门新鸿洲精密科技有限公司 | Superposition type voice coil motor and process for manufacturing same |
| CN106505823A (en) * | 2016-11-01 | 2017-03-15 | 厦门新鸿洲精密科技有限公司 | Dual camera voice coil motor |
| CN206820629U (en) * | 2017-05-09 | 2017-12-29 | 厦门新鸿洲精密科技有限公司 | A kind of voice coil motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107040121B (en) | 2021-02-05 |
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