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Lens driving motor

A lens driving and motor technology, applied in the field of lens driving devices, can solve problems such as insufficient stability of the lens driving device

Inactive Publication Date: 2013-04-24
SHANGHAI BILLU ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the lens driving device is still not stable enough during operation

Method used

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  • Lens driving motor
  • Lens driving motor
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Examples

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0024] Such as figure 1 As shown, a lens driving motor includes a base 1 , a rear reed 2 , an insulating sheet 3 , a lens carrier 4 , a coil 5 , a yoke iron shell 6 , a front reed 7 , a front cover 8 and a shielding case 9 .

[0025] Such as figure 2 and image 3 As shown, the yoke iron shell 6 is provided with a magnet 10 and a lens carrier 4 wound with a coil 5, and the front side and the rear side of the lens carrier 4 are respectively provided with a front reed 7 and a rear reed 2, wherein the front The side reed 7 is arranged between the front end of the lens carrier 4 and the front end of the yoke iron shell 6, and the rear reed 2 is arranged between the rear end of the lens carrier 4 and the rear end of the yoke iron shell 6 to limit the movement of the lens carrier , making it resistant to bumps and impacts. The lens driving motor is provide...

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PUM

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Abstract

The invention discloses a lens driving motor which comprises a base and a magnet yoke iron shell, wherein the magnet yoke iron shell is matched with the base, a magnet and a lens supporter are arranged in the magnet yoke iron shell, a front side spring leaf is arranged at the front side of the lens supporter, and a back side spring leaf is arranged at the back side of the lens supporter. The lens driving motor is characterized in that a plurality of bosses are arranged on the inner side surface of the base and the surface of each boss contacts with the back side spring leaf and generates pre-load stress to the back side spring leaf. In the process of installation, a certain pre-load stress generated by the difference of level between the bosses and the inner side surface of the base to the back side spring leaf enables the motor to be stable in the process of the movement, and plays a good role in controlling the starting current of the motor.

Description

technical field [0001] The invention relates to a lens driving device, in particular to a lens driving motor applied to a camera, a video camera or a mobile phone with a camera function to drive the lens to move and adjust the focal length. Background technique [0002] With the diversification of functions of digital products, digital devices equipped with video cameras or cameras, such as mobile phones, multimedia players, etc., have been developed rapidly and widely used. The above-mentioned video cameras or cameras usually adopt lenses with adjustable focal length or auto-focus, and the adjustment process is to change the position of the lens, and a drive motor is usually used to drive the lens to move. [0003] The driving device for adjusting the focal length of a traditional camera usually includes stepping motors, gears, cams, and connecting rods. A lens structure with a stable autofocus function disclosed in Chinese patent document CN2938165Y includes a housing, a m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/04G03B13/34H02K33/18
Inventor 王建华
Owner SHANGHAI BILLU ELECTRONICS CO LTD
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