Unlock instant, AI-driven research and patent intelligence for your innovation.

Voice coil motor and imaging module

A voice coil motor, lens module technology, applied in installation, optics, instruments, etc., can solve the problems of shaking and impact of the movable tube lens module

Inactive Publication Date: 2016-01-06
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the shrapnel is all in an undeformed state, since there is no pre-pressure of the shrapnel, the movable barrel and the lens module may be shaken and impacted when the camera is carried.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Voice coil motor and imaging module
  • Voice coil motor and imaging module
  • Voice coil motor and imaging module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] see Figure 1 to Figure 3 , the voice coil motor 100 provided by the embodiment of the present invention includes an upper cover 10, an outer frame 20, a base 30, a lower shrapnel 40, a movable barrel 50, a coil 60, an upper shrapnel 70, and a set of magnetic elements 80 And an upper shrapnel fastening part 90. The upper cover 10, the outer frame 20 and the base 30 form a hollow fixed frame, which accommodates the lower elastic piece 40, the movable tube 50, the coil 60, the upper elastic piece 70, the magnetic element 80 and the upper elastic piece holding part 90 therein.

[0017] Please also refer to Figure 4 and Figure 5 An L-shaped tab 21 is respectively extended from the four corners of the outer frame 20, the vertical part of each of the tabs 21 extends in the same direction as the axial direction of the outer frame 20, and each of the tabs 21 The length of the vertical portion is less than the height of the outer frame 20 and the movable tube 50. Each of t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A voice coil motor comprises a movable barrel, a coil, a fixed framework, a magnetic element, an upper elastic piece and a lower elastic piece, the coil is fixed on the outer wall of the movable barrel, the fixed framework stores the movable barrel and the coil, the magnetic element is fixed on the fixed framework and surrounds the coil, an object side end portion of the movable barrel, which faces to an object to be shot, is provided with a protrusion, the upper elastic piece includes a center portion and a periphery portion, the inner wall of a central through hole of the center portion is provided with a groove which is matched with the protrusion of the movable barrel, and the fixed position of the periphery portion is lower than the position of the center portion, so that when the coil is not powered on, the center portion can form an elastic pre-pressure force in a direction from an object side to an image side, and the elastic pre-pressure force is exerted on the movable barrel. The lower elastic piece, the movable barrel and the fixed framework are fixed, and when the coil is not powered on, the lower elastic piece is in a non-deformation state. An image capture module comprises the voice coil motor and a lens module which is stored in the movable barrel.

Description

technical field [0001] The invention relates to a voice coil motor, in particular to a voice coil motor for driving a lens, and an imaging module using the voice coil motor. Background technique [0002] Voice coil motors are often used in electronic devices with shooting functions, such as cameras and mobile phones, to drive lens modules to move for focusing purposes. A typical voice coil motor includes a movable movable tube for carrying a lens, a driving coil and a magnet, a fixed frame and at least one shrapnel. The at least one elastic piece is usually in an undeformed state when the coil is not energized. When there are multiple shrapnels, the shrapnels are usually all in an undeformed state, or all in a pre-deformed state so as to be suspended and supported and movable to be installed in the fixed frame. [0003] However, when the shrapnel is all in an undeformed state, since there is no pre-pressure of the shrapnel, the movable barrel and the lens module may be sha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02K33/18G02B7/04
Inventor 王毓斌柯朝元
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD