CN203811882U - Lens driving device of voice coil motor - Google Patents
Lens driving device of voice coil motor Download PDFInfo
- Publication number
- CN203811882U CN203811882U CN201420177308.9U CN201420177308U CN203811882U CN 203811882 U CN203811882 U CN 203811882U CN 201420177308 U CN201420177308 U CN 201420177308U CN 203811882 U CN203811882 U CN 203811882U
- Authority
- CN
- China
- Prior art keywords
- spring
- fixedly connected
- lens
- shell
- supporting body
- 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 - Lifetime
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- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 8
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract 6
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 1
Abstract
The utility model discloses a lens driving device of a voice coil motor. The lens driving device of the voice coil motor comprises a shell, a front gasket, a lens supporting body, a base, magnets matched with a coil, a front spring and a rear spring; the peripheral side of the front spring is fixedly connected with the front gasket; the magnets are uniformly distributed at four corners of at the inner side of the shell; the coil is fixed at the outer wall of the lens supporting body; the inner peripheral surface of the front gasket sleeves the outer wall of the lens supporting body; the upper end portion of the lens supporting body is fixedly connected with the inner peripheral side of the front spring; the outer peripheral side of the rear spring is fixedly connected with the upper end surface of the base; the inner peripheral side of the rear spring is fixedly connected with the lower end portion of the lens supporting body; the front gasket and the lens supporting body are arranged in the shell; and the shell is fixedly connected with the outer peripheral side of the base. Compared with the prior art, and according to the lens driving device of the utility model, the lens supporting body is suspended in the middle by means of pull forces of the front spring and the rear spring, wherein the pull forces are reverse pull forces, and therefore, the focusing speed of a camera module set can be improved, and energy consumption can be reduced.
Description
Technical field
The utility model relates to a kind of lens driver, a kind of lens driver of voice coil motor particularly, for the camera of automatic focusing function, be specifically applied to have the equipment such as mobile phone, camera, video camera or detecting sensor vision system, robotic vision system of camera function.
Background technology
The similar lens driver that existing domestic and international minisize pick-up head adopts adopts disclosed scheme in the disclosed lens driver of China Patent Publication No. CN1683946A more, stationary part is all comprised of iron-clad and four equiform magnetites, and described magnetite is assembled in respectively four corners of iron-clad; Coil and lens supports body are fixed together, be placed in stator interior, this lens supports body together with coil in the iron-clad of stator and magnetite inside along center position forwards, backwards mobile described lens driver also comprise that the place ahead is to spring and rear to spring, their peripheries are fixedly connected with iron-clad and fixed lens supporter, the place ahead also has a framework that the place ahead is fixed on iron-clad to spring, the electromagnetic force producing after coil electricity overcomes the precompressed elastic force that the place ahead produces to spring to spring and rear, orders about lens supports body and moves along optical axis direction.
This lens driver is fixed on carrier on base by front and back spring (pulling force in the same way), the electromagnetic force producing after coil electricity need to overcome the precompressed elastic force that the place ahead produces to spring to spring and rear simultaneously, camera module focusing speed is slow, has increased energy consumption simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, has improved the lens driver of the voice coil motor of camera module focusing speed.
For achieving the above object, the utility model is implemented according to following technical scheme:
A kind of lens driver of voice coil motor, comprise shell, front pad, lens supports body, base, the magnetite coordinating with coil, front spring, rear spring, the outer circumferential side of described front spring is fixedly connected with front pad, magnetite is uniformly distributed four bights inside the shell, coil is fixed on the external wall of lens supports, the inner ring surface of front pad is nested with at the external wall of lens supports, lens supports body upper end is fixedly connected with the inner circumferential side of front spring, the outer circumferential side of described rear spring is fixedly connected with the upper surface of base, the inner circumferential side of rear spring is fixedly connected with the bottom of lens supports body, described front pad and the setting of lens supports body are in the enclosure, shell is fixedly connected with base outer circumferential side.
Compared with prior art, before and after the utility model relies on, the pulling force (reversal interlocking relay) of two springs is unsettled in centre by lens supports body, has improved camera module focusing speed, reduces energy consumption simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described, in illustrative examples and the explanation of this utility model, is used for explaining the utility model, but not as to restriction of the present utility model.
The lens driver of a kind of voice coil motor as shown in Figure 1, comprise shell 1, front pad 3, lens supports body 6, base 8, the magnetite 4 coordinating with coil 5, front spring 2, rear spring 7, the outer circumferential side of described front spring 2 is fixedly connected with front pad 3, magnetite 4 is evenly distributed on bight, four of 1 inner sides of shell, coil 5 is fixed on lens supports body 6 outer walls, the inner ring surface of front pad 3 is nested with at lens supports body 6 outer walls, lens supports body 6 upper ends are fixedly connected with the inner circumferential side of front spring 2, the outer circumferential side of described rear spring 7 is fixedly connected with the upper surface of base 8, the inner circumferential side of rear spring 7 is fixedly connected with the bottom of lens supports body 6, described front pad 3 and lens supports body 6 are arranged in shell 1, shell 1 is fixedly connected with base 8 outer circumferential sides.
The utility model relies on the pulling force (reversal interlocking relay) of front front spring 2 and rear two springs 7 that lens supports body 6 is unsettled in centre, has improved camera module focusing speed, reduces energy consumption simultaneously.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model, within all falling into protection domain of the present utility model.
Claims (1)
1. the lens driver of a voice coil motor, comprise shell (1), front pad (3), lens supports body (6), base (8), the magnetite (4) coordinating with coil (5), front spring (2), rear spring (7), it is characterized in that: the outer circumferential side of described front spring (2) is fixedly connected with front pad (3), magnetite (4) is evenly distributed on four bights, shell (1) inner side, coil (5) is fixed on lens supports body (6) outer wall, the inner ring surface of front pad (3) is nested with at lens supports body (6) outer wall, lens supports body (6) upper end is fixedly connected with the inner circumferential side of front spring (2), the outer circumferential side of described rear spring (7) is fixedly connected with the upper surface of base (8), the inner circumferential side of rear spring (7) is fixedly connected with the bottom of lens supports body (6), described front pad (3) and lens supports body (6) are arranged in shell (1), shell (1) is fixedly connected with base (8) outer circumferential side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177308.9U CN203811882U (en) | 2014-04-14 | 2014-04-14 | Lens driving device of voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177308.9U CN203811882U (en) | 2014-04-14 | 2014-04-14 | Lens driving device of voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203811882U true CN203811882U (en) | 2014-09-03 |
Family
ID=51450615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420177308.9U Expired - Lifetime CN203811882U (en) | 2014-04-14 | 2014-04-14 | Lens driving device of voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203811882U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678531A (en) * | 2015-02-05 | 2015-06-03 | 新思考电机有限公司 | Lens driving device, camera device and electronic equipment |
| CN104834032A (en) * | 2015-04-29 | 2015-08-12 | 长春理工大学 | Liquid lens high-speed zoom system based on surface tension constraints |
| CN105093462A (en) * | 2015-08-12 | 2015-11-25 | 小米科技有限责任公司 | Camera module and electronic equipment |
-
2014
- 2014-04-14 CN CN201420177308.9U patent/CN203811882U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678531A (en) * | 2015-02-05 | 2015-06-03 | 新思考电机有限公司 | Lens driving device, camera device and electronic equipment |
| CN104834032A (en) * | 2015-04-29 | 2015-08-12 | 长春理工大学 | Liquid lens high-speed zoom system based on surface tension constraints |
| CN105093462A (en) * | 2015-08-12 | 2015-11-25 | 小米科技有限责任公司 | Camera module and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 454763 Jiaozuo City, Henan province Mengzhou Yao Yao Industrial Zone Henan Hao Ze Electronics Co., Ltd. Patentee after: Henan haoze Electronic Co., Ltd Address before: 454763 Jiaozuo City, Henan province Mengzhou Yao Yao Industrial Zone Henan Hao Ze Electronics Co., Ltd. Patentee before: HENAN HAOZE ELECTRONICS CO., LTD. |