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Voice coil motor, camera shooting module and mobile terminal

A voice coil motor and moving distance technology, applied in the field of communication, can solve the problems affecting the overall appearance and feel of the mobile terminal, and achieve the effect of reducing the overall thickness and ensuring normal work.

Active Publication Date: 2017-05-17
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, as the thickness of the mobile terminal becomes thinner and thinner, the overall thickness of the camera module will affect the overall appearance and feel of the mobile terminal.

Method used

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  • Voice coil motor, camera shooting module and mobile terminal
  • Voice coil motor, camera shooting module and mobile terminal
  • Voice coil motor, camera shooting module and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0019] like figure 1 As shown, a voice coil motor 10 includes a stator 1, a mover 2 and a base 3, the mover 2 is arranged opposite to the base 3, and the base 3 or the mover 2 is provided with a limiter for limiting the moving distance of the mover 2 body 4, the limiting body 4 has conductivity, the limiting body 4 is electrically connected to a power supply, and the height of the limiting body 4 in the first electrically connected state is smaller than that of the limiting body 4 in the second electrically connected state high.

[0020] The voice coil motor is a device that uses the interaction between the magnetic field of the magnet and the magnetic poles in the magnetic field generated by the energized coil to generate regular motion. One of them is used as a stator, and the other is used as a mover to realize the conversion of electrical energy to mechanical energy of the voice coil motor.

[0021] Among them, such as figure 1 As shown, the stator 1 of the voice coil mo...

no. 2 example

[0046] like Figure 2 to Figure 4 As shown, a camera module includes a lens 8, a photosensitive chip 9 and a voice coil motor 10, wherein the voice coil motor 10 includes a stator 1, a mover 2 and a base 3, the mover 2 is arranged opposite to the base 3, and the base 3 A limit body 4 for limiting the moving distance of the mover 2 is arranged on the top or the mover 2. The limit body 4 has conductivity, and the limit body 4 is electrically connected to a power supply. The limit body 4 is electrically connected to the first The height in the state is smaller than the height of the limiter 4 in the second electrical connection state; wherein, the lens 8 is clamped on the inner wall of the mover 2 of the voice coil motor 10 .

[0047] The specific structure of the voice coil motor 10 is the same as that of the first embodiment, and in order to avoid repetition, the embodiment of the present invention will not be repeated.

no. 3 example

[0049] like Figure 2 to Figure 4 As shown, a mobile terminal includes a camera module and a printed circuit board 11, the camera module is arranged on the printed circuit board 11 and is electrically connected to the printed circuit board 11, wherein the camera module includes a lens 8, a photosensitive chip 9 And the voice coil motor 10, the voice coil motor 10 includes a stator 1, a mover 2 and a base 3, the mover 2 is arranged opposite to the base 3, and the base 3 or the mover 2 is provided with a limiter for limiting the moving distance of the mover 2 body 4, the limiting body 4 has conductivity, the limiting body 4 is electrically connected to a power supply, and the height of the limiting body 4 in the first electrically connected state is smaller than that of the limiting body 4 in the second electrically connected state Height; the lens 8 is clamped on the inner wall of the mover 2 of the voice coil motor 10 .

[0050] The specific structure of the voice coil motor ...

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PUM

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Abstract

The invention provides a voice coil motor, a camera shooting module and a mobile terminal. The voice coil motor comprises a stator, a rotor and a base, wherein the rotor is opposite to the base, a conductive limit body for limiting the moving distance of the rotor is arranged on the base or the rotor, the limit body is electrically connected with a power supply, and the height of the limit body in a first electric connection state is smaller than the height of the limit body in a second electric connection state. The voice coil motor has the advantages that the rotor of the voice coil motor has large moving distance under a work state so as to the normal work of the voice coil motor; the rotor has small moving distance under a non-work state so as to limit the movements of the rotor when the voice coil motor is impacted by external force; the overall thickness of an existing voice coil motor can be lowered.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a voice coil motor, a camera module and a mobile terminal. Background technique [0002] Voice Coil Motor (Voice Coil Motor) is a device that uses the interaction between the magnetic field of the magnet and the magnetic poles in the magnetic field generated by the energized coil to generate regular motion. Voice coil motors are widely used in systems that require precise positioning, such as focusing of cameras, packaging of chips, detection of key switches, etc. [0003] In addition to providing sufficient moving distance for the mover, the voice coil motor also needs to ensure that the voice coil motor has a sufficient safety distance in the event of external impact or drop, which makes the overall thickness of the voice coil motor thick. Taking the camera module used by the voice coil motor in the mobile terminal as an example, in order to enable the camera module to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04M1/02
CPCH04M1/0264H04N23/57
Inventor 李文珍
Owner VIVO MOBILE COMM CO LTD
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