CN103051144B - Voice coil motor - Google Patents
Voice coil motor Download PDFInfo
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- CN103051144B CN103051144B CN201210004186.9A CN201210004186A CN103051144B CN 103051144 B CN103051144 B CN 103051144B CN 201210004186 A CN201210004186 A CN 201210004186A CN 103051144 B CN103051144 B CN 103051144B
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- shell fragment
- guiding loop
- magnetite assembly
- magnetic
- yoke
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Abstract
The invention discloses a kind of voice coil motor, comprise housing, and arrange lens carrier, magnetite assembly, coil, yoke and magnetic guiding loop in the housing, described magnetite assembly, coil, yoke and magnetic guiding loop are all arranged on lens carrier periphery; The ring-type location division that described yoke comprises annular base and radially gives prominence to from annular base top, described magnetite assembly is positioned at yoke annular base periphery, and is positioned at immediately below yoke ring-type location division; Described magnetic guiding loop is positioned at immediately below magnetite assembly, leaves annular gap between described magnetic guiding loop inwall and yoke annular base outer wall, and described coil is all or part of is arranged in this annular gap.Structure of the present invention is comparatively rationally compact, and forms the comparatively uniform horizontal direction magnetic field that distributes in gap below magnetite assembly, between yoke annular base and magnetic guiding loop, thus the Linear Driving being conducive to lens controls.
Description
Technical field
The present invention relates to a kind of voice coil motor, specifically a kind of be applied to camera, video camera or on the equipment such as the mobile phone with camera function to drive lens moving thus the voice coil motor of focusing.
Background technology
Its drive unit of focusing of traditional camera generally includes stepping motor, gear, the component such as cam and connecting rod forms, as Chinese patent literature CN2938165Y discloses a kind of lens construction with stable automatic focusing function, comprise housing, motor, first gear, second gear, camera lens module and elastic parts, described motor is arranged in this housing, described first gear to arrange in this housing and is fixed on the axle center of this motor, described second gear to be arranged in this housing and vertically to mesh together with this first gear, the upper surface of described second gear has a helical ramp, described camera lens module is arranged in this housing, and camera lens module has a projection contacted with the helical ramp of the second gear.Wherein relate to motor, two gears, housing, screw inclined plane and projections and camera lens module, parts are numerous, and make the size of camera comparatively large, transmission is complicated, is therefore difficult to the trend adapting to camera miniaturization.
Summary of the invention
The object of this invention is to provide the voice coil motor that a kind of structure is comparatively reasonable, performance is comparatively excellent.
The technical scheme realizing the object of the invention is: a kind of voice coil motor, comprise housing, and the lens carrier, magnetite assembly, coil, yoke and the magnetic guiding loop that arrange in the housing, described magnetite assembly, coil, yoke and magnetic guiding loop are all arranged on lens carrier periphery; It is characterized in that: the ring-type location division that described yoke comprises annular base and radially gives prominence to from annular base top, described magnetite assembly is positioned at yoke annular base periphery, and is positioned at immediately below yoke ring-type location division; Described magnetic guiding loop is positioned at immediately below magnetite assembly, leaves annular gap between described magnetic guiding loop inwall and yoke annular base outer wall, and described coil is all or part of is arranged in this annular gap.
In such scheme, also comprise lower shell fragment, upper shell fragment, upper shell fragment support, pad; Described pad adopts insulating material to make; Described housing comprises the base and upper cover that insulating material makes, and covers the feet being provided with and protruding on described downwards; Described upper shell fragment is arranged on yoke location division, and described upper shell fragment Bracket setting is between upper shell fragment and upper lid top wall; Described lower shell fragment is arranged on base, and described pad is arranged between lower shell fragment and the feet of upper cover; Described lens carrier is arranged between shell fragment and lower shell fragment.
In such scheme, the neighboring of the neighboring of described magnetite assembly, the neighboring of described magnetic guiding loop and described pad is positioned on same periphery.
In such scheme, described magnetite assembly is an annular magnetite.
In such scheme, the top of described magnetite is S pole, and bottom is N pole.
The present invention has positive effect: (1) structure of the present invention is comparatively rationally compact, and form the comparatively uniform horizontal direction magnetic field that distributes in gap below magnetite assembly, between yoke annular base and magnetic guiding loop, thus the Linear Driving being conducive to lens controls.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present invention;
Fig. 2 is for voice coil motor shown in Fig. 1 is from a kind of perspective view during another angle views;
A kind of cutaway view that Fig. 3 is voice coil motor shown in Fig. 1;
A kind of explosive view that Fig. 4 is voice coil motor shown in Fig. 1.
Be labeled as shown in accompanying drawing: housing 1, base 11, upper cover 13, feet 131, lens carrier 2, magnetite assembly 3, coil 4, yoke 5, annular base 51, ring-type location division 52, magnetic guiding loop 6, annular gap 7, lower shell fragment 81, upper shell fragment 82, upper shell fragment support 83, pad 84.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 4 shows the first embodiment of the present invention, and wherein Fig. 1 is a kind of perspective view of the present invention; Fig. 2 is for voice coil motor shown in Fig. 1 is from a kind of perspective view during another angle views; A kind of cutaway view that Fig. 3 is voice coil motor shown in Fig. 1; A kind of explosive view that Fig. 4 is voice coil motor shown in Fig. 1.
The present embodiment is a kind of voice coil motor, see Fig. 1 to Fig. 4, comprise housing 1, and arrange lens carrier 2, magnetite assembly 3, coil 4, yoke 5 and magnetic guiding loop 6 within the case 1, described magnetite assembly 3, coil 4, yoke 5 and magnetic guiding loop 6 are all arranged on lens carrier 2 periphery; It is characterized in that: the ring-type location division 52 that described yoke 5 comprises annular base 51 and radially gives prominence to from annular base 51 top, described magnetite assembly 3 is positioned at yoke 5 annular base 51 periphery, and is positioned at immediately below yoke 5 ring-type location division 52; Described magnetic guiding loop 6 is positioned at immediately below magnetite assembly 3, leaves annular gap 7 between described magnetic guiding loop 6 inwall and yoke 5 annular base 51 outer wall, and described coil 4 is all or part of is arranged in this annular gap 7.
The present embodiment also comprises lower shell fragment 81, upper shell fragment 82, upper shell fragment support 83, pad 84; Described pad 84 adopts insulating material to make; Described housing 1 comprises the base 11 and upper cover 13 that insulating material makes, and described upper cover 13 is provided with the feet 131 protruded downwards; Described upper shell fragment 82 is arranged on yoke 5 location division 52, and described upper shell fragment support 83 is arranged between shell fragment 82 and upper cover 13 roof; Described lower shell fragment 81 arranges on the pedestal 11, and described pad 84 is arranged between lower shell fragment 81 and the feet 131 of upper cover 13; Described lens carrier 2 is arranged between shell fragment 82 and lower shell fragment 81.
The neighboring of the neighboring of described magnetite assembly 3, the neighboring of described magnetic guiding loop 6 and described pad 84 is positioned on same periphery.
Described magnetite assembly 3 is annular magnetites.
The top of described magnetite is S pole, and bottom is N pole.
The present embodiment structure is comparatively rationally compact, and forms the comparatively uniform horizontal direction magnetic field that distributes in gap below magnetite assembly, between yoke annular base and magnetic guiding loop, thus the Linear Driving being conducive to lens controls.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.
Claims (5)
1. a voice coil motor, comprise housing (1), and the lens carrier (2) be arranged in housing (1), magnetite assembly (3), coil (4), magnetic is gripped (5) and magnetic guiding loop (6), described magnetite assembly (3), coil (4), magnetic is gripped (5) and magnetic guiding loop (6) is all arranged on lens carrier (2) periphery; It is characterized in that: described magnetic grips the ring-type location division (52) that (5) comprise annular base (51) and radially give prominence to from annular base (51) top, described magnetite assembly (3) is positioned at magnetic and grips (5) annular base (51) periphery, and is positioned at magnetic and grips immediately below (5) ring-type location division (52); Described magnetic guiding loop (6) is positioned at immediately below magnetite assembly (3), described magnetic guiding loop (6) inwall and magnetic are gripped between (5) annular base (51) outer wall and are left annular gap (7), described coil (4) is all or part of is arranged in this annular gap (7), and is positioned at immediately below described magnetite assembly (3); The neighboring of magnetite assembly, ring-type location division, magnetic guiding loop is all positioned on same periphery; The lower surface of the corresponding described annular base of described lens carrier (2) and the installed position of coil (4) have two-stage step, wherein, high step in the corresponding two-stage step in lower surface of described annular base, the low step in the corresponding two-stage step of coil.
2. voice coil motor according to claim 1, is characterized in that: also comprise lower shell fragment (81), upper shell fragment (82), upper shell fragment support (83), pad (84); Described pad (84) adopts insulating material to make; Described housing (1) comprises the base (11) and upper cover (13) that insulating material makes, and described upper cover (13) is provided with the feet (131) protruded downwards; Described upper shell fragment (82) is arranged on magnetic and grips on (5) location division (52), and described upper shell fragment support (83) is arranged between shell fragment (82) and upper cover (13) roof; Described lower shell fragment (81) is arranged on base (11), and described pad (84) is arranged between the feet (131) of lower shell fragment (81) and upper cover (13); Described lens carrier (2) is arranged between shell fragment (82) and lower shell fragment (81).
3. voice coil motor according to claim 2, is characterized in that: the neighboring of the neighboring of described magnetite assembly (3), the neighboring of described magnetic guiding loop (6) and described pad (84) is positioned on same periphery.
4. voice coil motor according to claim 1, is characterized in that: described magnetite assembly (3) is an annular magnetite.
5. voice coil motor according to claim 1, is characterized in that: the top of described magnetite assembly is S pole, and bottom is N pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210004186.9A CN103051144B (en) | 2012-01-09 | 2012-01-09 | Voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210004186.9A CN103051144B (en) | 2012-01-09 | 2012-01-09 | Voice coil motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103051144A CN103051144A (en) | 2013-04-17 |
| CN103051144B true CN103051144B (en) | 2016-01-20 |
Family
ID=48063680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210004186.9A Active CN103051144B (en) | 2012-01-09 | 2012-01-09 | Voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103051144B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040120B (en) * | 2017-05-09 | 2020-12-22 | 厦门新鸿洲精密科技有限公司 | Voice coil motor |
| WO2019074290A2 (en) * | 2017-10-11 | 2019-04-18 | 엘지이노텍 주식회사 | Motor |
| CN113448076B (en) * | 2020-03-26 | 2024-02-02 | 米泽喜九子 | Binocular magnifier |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1831576A (en) * | 2005-03-11 | 2006-09-13 | 株式会社思考技研 | Lens drive apparatus |
| CN101068091A (en) * | 2007-06-13 | 2007-11-07 | 宜兴市贵鑫磁电高科技有限公司 | Ultrasmall type voice coil motor |
| CN201273956Y (en) * | 2008-08-25 | 2009-07-15 | 金龙控股集团有限公司 | Lens driver |
| CN101539653A (en) * | 2008-03-19 | 2009-09-23 | 德昌电机(深圳)有限公司 | Lens driving device |
| CN202455238U (en) * | 2012-01-09 | 2012-09-26 | 金龙机电股份有限公司 | Voice coil motor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7291942B2 (en) * | 2004-08-13 | 2007-11-06 | Mitsumi Electric Co., Ltd. | Autofocus actuator |
| JP2008032768A (en) * | 2006-07-26 | 2008-02-14 | Matsushita Electric Ind Co Ltd | Lens actuator |
| JP2009271204A (en) * | 2008-05-01 | 2009-11-19 | Minebea Co Ltd | Lens drive unit |
-
2012
- 2012-01-09 CN CN201210004186.9A patent/CN103051144B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1831576A (en) * | 2005-03-11 | 2006-09-13 | 株式会社思考技研 | Lens drive apparatus |
| CN101068091A (en) * | 2007-06-13 | 2007-11-07 | 宜兴市贵鑫磁电高科技有限公司 | Ultrasmall type voice coil motor |
| CN101539653A (en) * | 2008-03-19 | 2009-09-23 | 德昌电机(深圳)有限公司 | Lens driving device |
| CN201273956Y (en) * | 2008-08-25 | 2009-07-15 | 金龙控股集团有限公司 | Lens driver |
| CN202455238U (en) * | 2012-01-09 | 2012-09-26 | 金龙机电股份有限公司 | Voice coil motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103051144A (en) | 2013-04-17 |
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