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Optical actuator, camera module and electronic equipment

A technology of optical actuators and driving components, applied in optics, optical components, instruments, etc., can solve the problems of V-shaped guide groove injection shrinkage, insufficient plastic strength, and poor performance, so as to improve the surface accuracy of slideways and product performance Improve and improve the effect of poor performance

Pending Publication Date: 2022-07-29
北京可利尔福科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the ball matching V-shaped groove disclosed in CN112596193A requires injection molding of the V-shaped groove. The strength of the plastic itself is not enough, and it is easy to produce pits when it is transported or dropped, resulting in poor performance. High precision and injection molding process requirements, because of the characteristics of the plastic itself, the V-shaped guide groove injection molding will shrink, which will affect the performance

Method used

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  • Optical actuator, camera module and electronic equipment
  • Optical actuator, camera module and electronic equipment
  • Optical actuator, camera module and electronic equipment

Examples

Experimental program
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Effect test

no. 1 example

[0060] refer to Figure 6-Figure 7 , the guide part and the support part can be respectively arranged on the side of the fixed member 20 and the moving member 10 where the driving member is installed, and the guide part and the support part are arranged on both sides of the driving member, the first magnet 71 and the first magnetic conductive sheet The magnetic attraction force of 81 makes the moving member 10 have a tendency to move linearly (that is, the moving member 10 is pressed toward the fixed member 20 by the support portion and the guide portion along the direction of arrow A in the figure). It should be noted that, in addition to the support portion, the guide portion also plays a certain supporting role.

[0061] It should be noted that the present disclosure does not limit the shapes of the moving member 10 and the fixing member 20. For example, when the moving member 10 and the fixing member 20 are configured as polygons, the side where the guide portion and the s...

no. 2 example

[0063] refer to Figure 8 , in this embodiment, the difference from the first embodiment is the relative position of the support part and the guide part.

[0064]Specifically, the guide portion may be arranged on the sides of the fixed member 20 and the moving member 10 on which the driving member is installed, and the support portion is arranged on the adjacent or opposite sides of the moving member 10 and the side of the fixed member 20 on which the driving member is installed On the other hand, the magnetic attraction force of the first magnet 71 and the first magnetic conductive sheet 81 makes the moving member 10 have a tendency to rotate. Similar to the first embodiment, when the moving member 10 and the fixing member 20 are configured as conventional polygons, the adjacent sides of the sides may refer to the adjacent sides of the polygon, and the opposite sides of the sides may refer to other non-opposite sides. Adjacent sides, of course, in the case of a large number ...

no. 3 example

[0067] refer to Figure 9 and Figure 10 , the optical actuator is also provided with at least a set of magnetic attraction components including a permanent magnet block 72 and a magnetic piece 82, one of the permanent magnet block 72 and the magnetic piece 82 is set on the fixed member 20, and the other is set on the moving member 20. On the member 10, the magnetic attraction assembly is arranged on the adjacent or opposite side of the side of the moving member 10 and the fixed member 20 where the driving member is installed, and the magnetic attraction force generated by the permanent magnet block 72 and the magnetic piece 82 is the same as that of the first magnet 71. Working together with the magnetic attraction force generated by the first magnetic conductive sheet 81, the moving member 10 has a tendency to rotate in the direction indicated by the arrow C in the figure.

[0068] The guide portion is arranged on the sides of the fixed member 20 and the moving member 10 on...

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PUM

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Abstract

The invention relates to an optical actuator, a camera module and an electronic device, the optical actuator comprises a moving member (10), a fixed member (20) and an abutting member arranged between the moving member (10) and the fixed member (20), the abutting member comprises at least one group of sliding shaft pair fixed on the moving member and / or the fixed member, the sliding shaft pair comprises two sliding shafts (31) extending in parallel, and the two sliding shafts (31) are fixed on the moving member and / or the fixed member. The extending direction of the sliding shaft is the same as the moving direction of the moving component; the rolling balls (32) are arranged between the sliding shafts of the at least one sliding shaft pair in an abutting mode, and in each sliding shaft pair, the radial gap between the two sliding shafts is smaller than the diameter of the rolling balls. The parallel sliding shafts replace injection molding V-shaped groove design, on one hand, the phenomenon of V-shaped groove pits caused by ball impact can be improved, on the other hand, the surface precision of the sliding way can be improved, the movement friction force is small, and the product performance is improved.

Description

technical field [0001] The present disclosure relates to the field of electronic device imaging, and in particular, to an optical actuator, a camera module and an electronic device. Background technique [0002] With the wider application of optical systems, users are more and more in pursuit of high-definition optical systems for imaging. For this reason, the application of autofocus function and automatic anti-shake function is favored by consumers. The process of auto-focusing and automatic anti-shake requires relative movement of components inside the optical system. In order to ensure the effect of focusing and anti-shake, it is necessary to provide reliable guidance and support for the relative movement between components. To solve this problem, some related technologies have proposed In order to arrange guide rails and balls between two relatively moving components for support and guidance, for example, Chinese patent CN112596193A discloses a driver, which includes in...

Claims

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Application Information

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IPC IPC(8): G02B7/09G03B5/00G03B13/36G02B27/64H02K33/18G03B30/00
CPCG02B7/09G03B5/00G03B13/36G02B27/646H02K33/18G03B30/00
Inventor 黄晓敏董怿
Owner 北京可利尔福科技有限公司