CN102820759B - Voice coil motor and taken module - Google Patents
Voice coil motor and taken module Download PDFInfo
- Publication number
- CN102820759B CN102820759B CN201110151823.0A CN201110151823A CN102820759B CN 102820759 B CN102820759 B CN 102820759B CN 201110151823 A CN201110151823 A CN 201110151823A CN 102820759 B CN102820759 B CN 102820759B
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- Prior art keywords
- accommodating cylinder
- movable accommodating
- shell fragment
- coil
- fixed
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Abstract
A kind of voice coil motor, it comprises a movable accommodating cylinder, and a coil is fixed on movable accommodating cylinder outer wall, and a fixed frame collecting movable accommodating cylinder and coil are in wherein, and a magnetic element is fixed on fixed frame and around coil, shell fragment and once shell fragment on one.Movable accommodating cylinder has projection towards the thing side end of thing to be captured.Upper shell fragment comprises central part and circumference, this central part one central through hole inwall offers the groove with the protrusions match of movable accommodating cylinder, and this circumference fixed position sets low than this centre and forms one with this central part when coil is not energized and put on movable accommodating cylinder from the elastic forepressure in direction, thing side direction image side.Lower shell fragment and movable accommodating cylinder and fixed frame are fixed, and when coil is not energized, lower shell fragment is in non-deformation state.One taken module comprises this voice coil motor and a camera lens module is contained in its movable accommodating cylinder.
Description
Technical field
The present invention relates to voice coil motor, particularly relate to the voice coil motor driving camera lens, and use the taken module of this voice coil motor.
Background technology
Voice coil motor is usually used in the electronic installation with shoot function, such as, drives camera lens module to move in camera and mobile phone and reaches focusing object.A kind of typical voice coil motor comprises moveable fitted tube for carrying camera lens, plays coil and the magnet of driving effect, fixed frame and at least one shell fragment.This at least one shell fragment is in non-deformation state usually when coil is not energized.When there being multiple shell fragment, the plurality of shell fragment is all in non-deformation state usually, or the predeformation state that is all in suspension support movable accommodating cylinder in this fixed frame.
But when being all in non-deformation state when shell fragment, owing to not having the precompression of shell fragment, when camera carries, movable accommodating cylinder may be rocked and be impacted together with camera lens module.And when all having predeformation amount when shell fragment, then movable accommodating cylinder has been applied in the precompression of many times.Need the precompression of carrying larger, then to the mould of movable accommodating cylinder and forming requirements higher, namely mould and the impact of shaping tolerance on movable accommodating cylinder larger.
Summary of the invention
In view of this, be necessary that providing a kind of can overcome the voice coil motor of above-mentioned shortcoming and use the taken module of this voice coil motor.
A kind of voice coil motor, it comprises the movable accommodating cylinder of a hollow, a coil, the fixed frame of a hollow, one group of magnetic element, shell fragment and once shell fragment on one.This movable accommodating cylinder is for accommodating a camera lens module to be driven, and this movable accommodating cylinder has many projections towards the thing side end of thing to be captured.This coil is fixed on this movable accommodating cylinder outer wall.This fixed frame accommodates this movable accommodating cylinder and coil in wherein.This group magnetic element is fixed on this fixed frame inwall, and around this coil, this group magnetic element and this coil produce magnetic action power and move in this fixed frame to drive this movable accommodating cylinder.On this, shell fragment comprises a central part and a circumference around this central part, this central part has a central through hole, this central through hole inwall offers the many grooves corresponding with many projections of this movable accommodating cylinder, this many projection embeds in this many groove, this circumference is fixed on this fixed frame inwall, and this circumference position sets low than this centre and forms one with this central part when this coil is not energized and put on this movable accommodating cylinder from the elastic forepressure in direction, thing side direction image side.And this lower shell fragment part is fixed with this movable accommodating cylinder, another part and this fixed frame are fixed, and when this coil is not energized, this lower shell fragment is in non-deformation state.
A kind of taken module, it comprises above-mentioned voice coil motor and is contained in the camera lens module in the movable accommodating cylinder of voice coil motor.
Relative to prior art, voice coil motor provided by the invention can avoid the movable accommodating cylinder when camera carries to be rocked together with camera lens module and impact owing to there being the precompression of upper shell fragment, lower shell fragment is not out of shape the precompression that movable accommodating cylinder can be made to carry when this coil is not energized less, thus make the mould of movable accommodating cylinder and shaping tolerance can be relatively large, namely movable accommodating cylinder by mould and shaping tolerances less.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the voice coil motor that the embodiment of the present invention provides.
Fig. 2 is the exploded perspective schematic diagram of the voice coil motor of Fig. 1.
Fig. 3 is the opposite angles schematic perspective view of Fig. 2.
Fig. 4 is Fig. 1 cut-away view diagonally.
Fig. 5 is the cut-away view of Fig. 1 along center line.
Main element symbol description
| Upper cover | 10 |
| Housing | 20 |
| Base | 30 |
| Lower shell fragment | 40 |
| Movable accommodating cylinder | 50 |
| Coil | 60 |
| Upper shell fragment | 70 |
| Magnetic element | 80 |
| Upper shell fragment buckling piece | 90 |
| Lappet | 21 |
| Through hole | 22 |
| Projection | 12 |
| Projection | 53 |
| Rib | 51 |
| Annular boss | 52 |
| Central part | 71 |
| Circumference | 72 |
| Central through hole | 74 |
| Groove | 73 |
| Bar shaped hole slot | 75 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1 to Fig. 3, the voice coil motor 100 that the embodiment of the present invention provides comprises upper cover 10, housing 20, base 30, shell fragment 40 once, movable accommodating cylinder 50, coil 60, shell fragment 70 on, shell fragment buckling piece 90 on one group of magnetic element 80 and.Upper cover 10, housing 20 and base 30 form the fixed frame of a hollow, the lower shell fragment 40 of collecting, movable accommodating cylinder 50, coil 60, upper shell fragment 70, and magnetic element 80 and upper shell fragment buckling piece 90 are in wherein.
See also Fig. 4 and Fig. 5, the lappet 21 of a L shape is extended in this corner, four, housing 20 upper edge respectively, the vertical portion bearing of trend of this lappet 21 each is identical with this housing 20 axial direction, and the vertical portion length of this lappet 21 each is less than this housing 20 and movable accommodating cylinder 50 height.The space that this lappet 21 each is identical with the horizontal component length that this housing 20 inwall forms a width and this lappet 21.The horizontal component of this lappet 21 each is provided with through hole 22, coordinates for inserting for the projection 12 of upper cover 10.
This movable accommodating cylinder 50 inwall has internal thread, for a camera lens module threaded engagement to be driven.This movable accommodating cylinder 50 has many projections 53 towards the thing side end of thing to be captured.This movable accommodating cylinder 50 outer wall is protruding with multiple length direction rib identical with movable accommodating cylinder 50 axial direction 51 and an annular boss 52 extended along movable accommodating cylinder 50 radial direction from this movable accommodating cylinder 50 outer wall and rib 51.This coil 60 is fixed on this annular boss 52, and this rib 51 makes to have space between this coil 60 and this movable accommodating cylinder 50 outer wall.This lappet 21 vertical portion each stretches into this space, and the vertical portion length of this lappet 21 each is less than this movable accommodating cylinder 50 highly makes this movable accommodating cylinder 50 have LAP space (see figure 4).
This magnetic element 80 each is inserted in the corresponding space between this lappet 21 and this housing 20.With this coil 60 through these spaces.This group magnetic element 80 is fixed on this housing 20 inwall, and around this coil 60.This group magnetic element 80 produces magnetic action power with this coil 60 and moves along housing 20 axial direction in this fixed frame to drive this movable accommodating cylinder 50.
On this, shell fragment 70 is annular, and it comprises a central part 71 and a circumference 72 around this central part 71.There is bar shaped hole slot 75 to provide elasticity between this central part 71 and circumference 72.This central part 71 has a central through hole 74, and this central through hole 74 inwall offers the many grooves 73 corresponding with many projections 53 of this movable accommodating cylinder 50.This buckling piece 90 is also annular, and it is placed in the horizontal component of this lappet 21, and the circumference 72 withholding shell fragment 70 on this is on this group magnetic element 80.On this, the central part 71 of shell fragment 70 can pass this buckling piece 90.Many projections 53 of this movable accommodating cylinder 50 embed in this many groove 73.The position of many projections 53 of this movable accommodating cylinder 50 sets high than circumference 72 fixed bit of shell fragment on this 70, makes the central part 71 of shell fragment 70 on this have an elastic forepressure and compresses this movable accommodating cylinder 50.The direction of this elastic forepressure is obviously from direction, thing side direction image side.
Above-mentioned configuration makes coil 60 when not being energized, and namely upper shell fragment 70 has predeformation formation precompression to compress this movable accommodating cylinder 50, and so can avoid when camera carries, movable accommodating cylinder 50 is rocked and impacted.On the other hand, when taking downwards, vertically downward, the upper shell fragment 70 precompression fitted tube 50 rounds gravity that can take in sail are drop-down for camera lens.
At coil 60 when not being energized, this movable accommodating cylinder 50 is in this base 30.This lower shell fragment 40 part is fixed with this movable accommodating cylinder 50, and another part and this base 30 are fixed, and when this coil is not energized, this lower shell fragment can be in non-deformation state.
Above-mentioned configuration makes at coil 60 when not being energized, and the precompression putting on movable accommodating cylinder 50 only comes from shell fragment 70.With shell fragment predeformation amount for △ Y, shell fragment stiffness coefficient is K meter, and this precompression F putting on movable accommodating cylinder 50 can be expressed as F=K △ Y.The precompression that this movable accommodating cylinder 50 need carry makes the mould of movable accommodating cylinder 50 and shaping tolerance can be relatively large compared with I, namely movable accommodating cylinder 50 by mould and shaping tolerances less.
When coil electricity, above-mentioned upper shell fragment 70 and lower shell fragment 40 all can have further distortion.
The camera lens module coordinated with movable accommodating cylinder 50 can comprise lens barrel and be placed in the camera lens (not shown) in lens barrel, and this lens barrel outer wall has external screw thread.This voice coil motor 100 can form a taken module being suitable for using in the electronic installation such as camera, mobile phone with this camera lens module.
Be understandable that, those skilled in the art also can do other change in spirit of the present invention, all should be included in the present invention's scope required for protection.
Claims (7)
1. a voice coil motor, it comprises:
The movable accommodating cylinder of one hollow, for accommodating a camera lens module to be driven, this movable accommodating cylinder has many projections towards the thing side end of thing to be captured;
One coil is fixed on this movable accommodating cylinder outer wall;
The fixed frame of one hollow, this fixed frame accommodates this movable accommodating cylinder and coil in wherein;
One group of magnetic element is fixed on this fixed frame inwall, and around this coil, this group magnetic element and this coil produce magnetic action power and move in this fixed frame to drive this movable accommodating cylinder;
Shell fragment on one, on this, shell fragment comprises a central part and a circumference around this central part, this central part has a central through hole, this central through hole inwall offers the many grooves corresponding with many projections of this movable accommodating cylinder, this many projection embeds in this many groove, this circumference is fixed on this fixed frame inwall, and this circumference position sets low than this centre and forms one with this central part when this coil is not energized and put on this movable accommodating cylinder from the elastic forepressure in direction, thing side direction image side; And
Shell fragment once, this lower shell fragment part is fixed with this movable accommodating cylinder, and another part and this fixed frame are fixed, and when this coil is not energized, this lower shell fragment is in non-deformation state; This fixed frame comprises the base cooperatively interacted, a housing and a upper cover, when coil is not energized, this movable accommodating cylinder seat is in this base, this housing inwall is formed with the lappet of multiple L shape, the vertical portion bearing of trend of this lappet each is identical with this housing axial direction, and this lappet vertical portion each stretches into the space between this coil and this movable accommodating cylinder outer wall, and the length of this lappet vertical portion each is less than this movable accommodating cylinder height makes this movable accommodating cylinder have LAP space.
2. voice coil motor as claimed in claim 1, it is characterized in that: this movable accommodating cylinder outer wall is protruding with multiple length direction rib identical with movable accommodating cylinder axial direction and an annular boss extended along movable accommodating cylinder radial direction from this movable accommodating cylinder outer wall and rib, this coil is fixed on this annular boss, and this rib makes to have space between this coil and this movable accommodating cylinder outer wall.
3. voice coil motor as claimed in claim 2, it is characterized in that: this lappet each and this housing inwall form the identical space of the horizontal component length of a width and this lappet, this magnetic element each is inserted in this corresponding space, and this coil is through this space each.
4. voice coil motor as claimed in claim 3, is characterized in that: comprise the horizontal component that a ring buckle casting die is placed in this lappet further, and to withhold on this shell fragment circumference on this group magnetic element.
5. voice coil motor as claimed in claim 1, is characterized in that: on this, shell fragment is annular, has bar shaped hole slot to provide elasticity between its central part and circumference.
6. voice coil motor as claimed in claim 1, is characterized in that: this movable accommodating cylinder inwall has internal thread, for camera lens module threaded engagement to be driven.
7. a taken module, it camera lens module comprising the voice coil motor according to any one of claim 1 ~ 6 and be contained in the movable accommodating cylinder of this voice coil motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110151823.0A CN102820759B (en) | 2011-06-08 | 2011-06-08 | Voice coil motor and taken module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110151823.0A CN102820759B (en) | 2011-06-08 | 2011-06-08 | Voice coil motor and taken module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102820759A CN102820759A (en) | 2012-12-12 |
| CN102820759B true CN102820759B (en) | 2016-01-06 |
Family
ID=47304675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110151823.0A Expired - Fee Related CN102820759B (en) | 2011-06-08 | 2011-06-08 | Voice coil motor and taken module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102820759B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868280B (en) * | 2011-07-08 | 2016-05-11 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| CN103227549B (en) * | 2013-04-15 | 2015-12-23 | 宜兴市贵鑫磁电高科技有限公司 | A kind of Subminiature voice coil motor |
| CA2950634C (en) * | 2014-05-30 | 2018-08-28 | Bolymedia Holdings Co. Ltd. | Zoom lens |
| CN104993668B (en) * | 2015-06-26 | 2018-02-09 | 爱佩仪光电技术（深圳）有限公司 | A kind of diamagnetic interference optical anti-vibration voice coil motor and its manufacture method |
| CN105676403B (en) * | 2016-04-18 | 2018-07-20 | 苏州久易光电科技有限公司 | A kind of ultra-thin voice coil motor for lens driver |
| CN106685123A (en) * | 2017-01-20 | 2017-05-17 | 宜兴市贵鑫磁电高科技有限公司 | Voice coil motor seat compatible to straightly wound coil and hollow coil |
| CN108336850A (en) * | 2018-03-27 | 2018-07-27 | 苏州聚力电机有限公司 | A kind of newly-designed voice coil motor upper cover component |
| CN108873230B (en) * | 2018-08-22 | 2024-01-05 | 惠州萨至德光电科技有限公司 | Thin lens motor |
| CN109613676A (en) * | 2019-01-21 | 2019-04-12 | 湖南新视电子技术有限公司 | A kind of double damping protection lens driving apparatus |
| CN112782902B (en) * | 2020-03-13 | 2022-09-02 | 北京可利尔福科技有限公司 | Optical element driving mechanism and optical module |
| CN113037045B (en) * | 2021-03-08 | 2022-09-09 | Oppo广东移动通信有限公司 | Voice coil motor, camera and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488698A (en) * | 2009-02-23 | 2009-07-22 | 李俊 | Voice coil type focus motor |
| CN101887157A (en) * | 2009-05-15 | 2010-11-17 | 东莞市盈聚电子科技有限公司 | Driving module for mobile phone lens |
| CN102025255A (en) * | 2009-09-09 | 2011-04-20 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor and camera module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI293130B (en) * | 2006-01-19 | 2008-02-01 | Asustek Comp Inc | Camera module and electric device using the same |
-
2011
- 2011-06-08 CN CN201110151823.0A patent/CN102820759B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488698A (en) * | 2009-02-23 | 2009-07-22 | 李俊 | Voice coil type focus motor |
| CN101887157A (en) * | 2009-05-15 | 2010-11-17 | 东莞市盈聚电子科技有限公司 | Driving module for mobile phone lens |
| CN102025255A (en) * | 2009-09-09 | 2011-04-20 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor and camera module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102820759A (en) | 2012-12-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160106 Termination date: 20160608 |