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Maglev motor

A motor and maglev technology, applied in the direction of magnetic attraction or thrust holding devices, electrical components, electromechanical devices, etc., can solve the problems of elastic fatigue of shrapnel, low reliability of voice coil motor, coil damage, etc., and achieve high reliability Effect

Inactive Publication Date: 2018-02-02
SCIENBIZIP CONSULTINGSHENZHENCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the coil moves up and down with the lens, the coil is sometimes damaged, causing distortion when focusing or zooming, resulting in low reliability of the voice coil motor; in addition, the elastic fatigue of the shrapnel will permanently cause distortion.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0013] see figure 1 , figure 2 and image 3 , the magnetic levitation motor 100 provided by the embodiment of the present invention is used to drive a lens module (not shown in the figure) to realize a focusing or zooming function, and the lens module has an optical axis.

[0014] The magnetic levitation motor 100 includes a housing 10 , a fixed unit 20 , a movable unit 30 , a shrapnel 40 and a carrier 50 .

[0015] The casing 10 is used to accommodate the fixed unit 20 , the movable unit 30 , the elastic piece 40 and the carrier 50 to prevent external interference to the above components and to have the function of preventing electromagnetic interference.

[0016] The fixing unit 20 includes a fixing frame 21 and four first magnetic field generating components 22 . The fixing frame 21 includes a hollow square bottom plate 210 , four corners of the bottom plate 210 are respectively provided with guide posts 211 of the same height in the same direction, and the extension di...

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PUM

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Abstract

A magnetic levitation motor used to drive a lens module, the magnetic levitation motor includes a fixed unit and a movable unit, the movable unit is movably arranged in the fixed unit, the fixed unit includes a fixed frame and a first magnetic field generating assembly, the first magnetic field The generating assembly is fixed on the fixed frame, the fixed frame has a guide post, the movable unit includes a movable frame and a second magnetic field generating assembly, the second magnetic field generating assembly is fixed on the movable frame, the movable frame is used to accommodate the lens module, and the movable frame has Corresponding to the notch of the guide post, at least one of the first magnetic field generating assembly and the second magnetic field generating assembly is an electromagnet comprising a coil and an iron core, and the movable unit generates Under the action of the magnetic field, the guide pillar moves along the optical axis in the fixed unit.

Description

technical field [0001] The invention relates to a magnetic levitation motor. Background technique [0002] The main principle of the voice coil motor (VCM) is to control the stretching position of the shrapnel by changing the current of the inner coil of the voice coil motor in the permanent magnetic field, so that the coil receives different magnetic force, so as to control the stretching position of the shrapnel, thereby driving the lens Move up and down to achieve the movement function of the lens. [0003] Since the coil moves up and down with the lens, the coil is sometimes damaged, causing distortion during focusing or zooming, resulting in low reliability of the voice coil motor; in addition, the elastic fatigue of the shrapnel will permanently cause distortion. Contents of the invention [0004] In view of this, it is necessary to provide a magnetic levitation motor with high reliability. [0005] A magnetic levitation motor used to drive a lens module, the magne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K33/18H02N15/00
Inventor 吴尚峰
Owner SCIENBIZIP CONSULTINGSHENZHENCO
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