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Lens driving device, camera device and mobile terminal

A technology of a lens driving device and a mobile terminal, applied in the field of cameras, can solve problems such as insufficient motor thrust

Inactive Publication Date: 2021-04-09
上海源路电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a lens driving device, an imaging device and a mobile terminal to solve the problem of insufficient motor thrust caused by the limited housing space of the existing motor

Method used

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  • Lens driving device, camera device and mobile terminal
  • Lens driving device, camera device and mobile terminal
  • Lens driving device, camera device and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] refer to Figure 1 to Figure 6 , a lens driving device, including a housing 1, a base 2, a winding carrier 4, a driving coil 7, a driving magnet 8, an upper spring 5, a lower spring 6, a frame 3 and a flanging magnet 10; the housing 1 is coupled to the base 2 The frame 3 is set in the shell 1; the outer circumference of the upper spring 5 is fixed on the frame 3, and the inner ring surface is connected to the upper end surface of the winding carrier 4; the four corners of the lower spring 6 are fixed on the base 2, and the inner ring surface is connected and fixed to the winding The lower end surface of the wire carrier 4; the drive coil 7 is wound on the outside of the winding carrier 4; the drive magnet 8 is bent, and several drive magnets 8 are symmetrically distributed on the outside of the drive coil 7; The notches on the line carrier 4 are inserted into the matching iron shell flange 9; the flange magnet 10 is arranged inside the iron shell flange 9.

[0028] In ...

Embodiment 2

[0044] refer to Figure 7 The difference between this embodiment and Embodiment 1 is that the thicknesses of both sides of the driving magnet 8 are different, and the side opposite to the flanging magnet 10 is thicker. That is, the shorter side of the driving magnet 8 is thicker than the longer side. Because the corner arc of the short side of the driving coil 7 is larger, compared with the square shape of the frame 3 and the housing 1, the space reserved by the frame 3 outside the short side of the driving coil 7 is larger, and the short side of the driving magnet 8 Therefore, it can also be made thicker, thereby increasing the driving force generated by the interaction between the driving magnet 8 and the driving coil 7 .

Embodiment 3

[0046] refer to Figure 8 , The difference between this embodiment and Embodiment 1 is that Embodiment 1 uses two bent drive magnets 8 , while this embodiment uses four bent drive magnets 8 . Therefore, the number of driving magnets 8 can be adjusted according to the specific structure of the driving coil 7 , and the present invention does not limit the driving coil 7 to only have an octagonal structure. Compared with the first embodiment, this embodiment adds two driving magnets 8, so the driving force generated by the interaction between the driving magnets 8 and the driving coil 7 is doubled.

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Abstract

The invention discloses a lens driving device which comprises a shell, a base, a winding carrier, a driving coil, a driving magnet, an upper spring, a lower spring, a frame and a flanging magnet. The shell is coupled to the base; the frame is arranged in the shell; the periphery of the upper spring is fixed on the frame, and the inner ring surface is connected to the upper end surface of the winding carrier; four corners of the lower spring are fixed on the base; the inner ring surface is fixedly connected to the lower end surface of the winding carrier; the driving coil is wound on the outer side of the winding carrier; the driving magnets are bent, and the plurality of driving magnets are symmetrically distributed on the outer side of the driving coil; the shell is provided with an iron shell flange which is inserted and matched with the notch on the opposite winding carrier; and the flanging magnet is arranged on the inner side of the flanging of the iron shell. The invention further provides a camera device with the lens driving device and a mobile terminal with the camera device. The motor driving force is improved, and the size of the driving mechanism does not need to be increased.

Description

technical field [0001] The invention relates to the field of camera technology, in particular to a lens driving device, a camera device and a mobile terminal. Background technique [0002] The driving of a conventional motor is to interact with the driving magnet after energizing the driving coil, and generate a certain magnetic force according to the left-handed Fleming's law to drive the lens module (the winding carrier carrying the lens) to the ideal target position to achieve Focus to take a clear picture of the effect of the picture. Existing mobile phones tend to pursue miniaturization and thinning, so that the housing space of the motor mounted in the mobile phone is extremely limited, and there is a problem of insufficient thrust, which makes it difficult for the lens to reach the target travel position. In order to solve the above problems, it is necessary to develop a motor with a large thrust and a longer stroke on the basis of the limited space of the existing m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/09G03B13/36
CPCG02B7/09G03B13/36
Inventor 龚高峰王建华朱春明唐利新
Owner 上海源路电子有限公司