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Miniature driving motor

A micro-drive and motor technology, applied in electrical components, electromechanical devices, etc., can solve problems affecting linear movement effects and changes, and achieve the effects of improving linear driving effects, simplifying structure, and improving production efficiency and yield.

Inactive Publication Date: 2013-03-27
深圳市光控数码光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional micro-drive motor generally includes an upper cover, an upper gasket, an upper spring piece, a lens carrier, a magnet assembly, a coil assembly, a lower gasket, a lower spring assembly and a base; the traditional upper cover is made of a magnetically conductive material, and the magnet The assembly is located under the top wall of the upper cover, and there is no magnetically conductive material under the magnet assembly, so most of the magnetic force lines of each magnet in the magnet assembly enter the top wall of the upper cover upward after passing through the coil assembly, and return to the magnet from the side wall of the upper cover , forming a closed magnetic circuit; thus, the magnetic force lines of each magnet near the top wall of the upper cover are relatively dense, while the magnetic force lines away from the top wall of the upper cover are relatively sparse, resulting in the coil assembly moving up and down with the carrier. The magnetic field at the place changes, affecting its linear movement effect

Method used

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  • Miniature driving motor
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Examples

Experimental program
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Embodiment 1

[0018] (Embodiment 1, micro drive motor)

[0019] Figure 1 to Figure 5 A specific embodiment of the micro drive motor in the present invention is shown, wherein, figure 1 It is a schematic diagram of a three-dimensional structure of the present invention; figure 2 yes figure 1 A schematic diagram of the three-dimensional structure of the micro-drive motor when viewed from another angle; image 3 yes figure 1 A front view of the micro drive motor shown; Figure 4 yes image 3 The sectional view of the shown micro drive motor along line A-A; Figure 5 yes figure 1 An exploded view of the micro drive motor shown.

[0020] Present embodiment is a kind of miniature drive motor that drives miniature camera lens assembly, see Figure 1 to Figure 5 As shown, it includes an upper cover 1 , an upper gasket 120 , an upper spring piece 2 , a carrier 3 , a coil assembly 4 , a magnet assembly 5 , a lower spring assembly 6 , a base 7 and a lower gasket 9 . In this embodiment, the...

Embodiment 2

[0032] (Embodiment 2, micro drive motor)

[0033] This embodiment is basically the same as Embodiment 1, except that: the upper cover 1 is made of a magnetically permeable material; a side of the magnet assembly 5 close to the coil assembly 4 and the top wall 11 of the upper cover also form a pass through The magnetic path of the coil assembly 4. This structure can effectively improve the utilization efficiency of the magnetic field of the magnet assembly, and can provide a more constant magnetic field for the coil assembly when the coil assembly moves with the carrier, thereby effectively improving the linear driving effect.

[0034] It can be seen from the above embodiment 1 and embodiment 2 that the present invention has the following advantages in use by improving the material and structure of the base: when the upper cover is made of non-magnetic material, the coil assembly can still use the magnet assembly The magnetic path through the coil assembly formed with the base...

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Abstract

The invention discloses a miniature driving motor which comprises an upper cover, an upper gasket, an upper spring strip, a carrier, a coil assembly, a magnet assembly, a lower spring assembly, a base and a lower gasket. The base is made of magnetically permeable materials and comprises a magnetically permeable body in the shape of a straight plate basically, a central hole is arranged in the center of the magnetically permeable body, peripheral edges of the magnetically permeable body are upwardly protruded to form connecting walls, and the connecting walls are fixedly connected with side walls of the upper cover. The miniature driving motor has the advantages that the structure of the base is modified, so that the structure of the traditional miniature driving motor is greatly simplified, the production efficiency is effectively improved, and the yield is effectively increased.

Description

technical field [0001] The invention belongs to the technical field of micro-motor structure design, and in particular relates to a micro-drive motor. Background technique [0002] Micro camera devices have been widely used in mobile phones and notebook computers, and the micro drive motors (also called lens drive motors) are getting smaller and smaller. [0003] The traditional micro-drive motor generally includes an upper cover, an upper gasket, an upper spring piece, a lens carrier, a magnet assembly, a coil assembly, a lower gasket, a lower spring assembly and a base; the traditional upper cover is made of a magnetically conductive material, and the magnet The assembly is located under the top wall of the upper cover, and there is no magnetically conductive material under the magnet assembly, so most of the magnetic force lines of each magnet in the magnet assembly enter the top wall of the upper cover upward after passing through the coil assembly, and return to the mag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/18
Inventor 胡小青
Owner 深圳市光控数码光电有限公司