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Actuator and camera module with the same

A camera module and actuator technology, applied in cameras, camera bodies, piezoelectric effect/electrostrictive or magnetostrictive motors, etc., can solve problems such as reducing assembly efficiency and improving assembly difficulty.

Inactive Publication Date: 2015-10-14
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the flexibility of the flexible circuit board, it needs to be assembled in a bending manner so that the piezoelectric motor and the driven rod can be aligned accurately, and the displacement sensor can detect the position of the sensed unit, which undoubtedly improves the assembly process. Difficulty, thereby reducing assembly efficiency

Method used

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  • Actuator and camera module with the same
  • Actuator and camera module with the same
  • Actuator and camera module with the same

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0068] see Figure 1 to Figure 3 , is the actuator 100 according to the first embodiment of the present invention. The actuator 100 includes a base 10, a fixed frame 12, a movable frame 14, a flexible circuit board 16, a piezoelectric motor 18, a driven rod 20, a displacement sensor 22, a sensed unit 24, a drive circuit 26, and a guide rod. 28 and magnetic assembly 29.

[0069] The base 10 includes a substantially rectangular body portion 102 and a substantially rectangular bearing portion 104 . A square receiving groove 1020 and a square receiving hole 1022 communicating with the receiving groove 1020 are defined at the center of the main body 102 . The body portion 102 includes a first body surface 1024 and a second body surface 1026 opposite to the first body surface 1024 . Two fixing protrusions 1028 protrude from two opposite corne...

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Abstract

The invention relates to an actuator comprising a fixed mount, a movable frame, a pedestal, a flexible circuit board, a piezoelectric motor, a follower lever, a displacement sensor and a sensed unit. The fixed mount is fixedly arranged on the pedestal. The movable frame is accommodated in the fixed mount and is carried on the pedestal. The follower lever and the sensed unit are fixedly arranged on one side surface of the movable frame, wherein the follower lever and the sensed unit are mutually arranged at an interval. The piezoelectric motor and the displacement sensor are fixedly arranged on the flexible circuit board in a mutual interval mode. And the flexible circuit board is fixedly arranged on one side wall of the fixed mount as well as the piezoelectric motor and the follower lever are cooperated and the displacement sensor can detect the position of the sensed unit. Besides, the invention also relates to a camera module group having the actuator.

Description

technical field [0001] The invention relates to the field of imaging, in particular to an actuator capable of realizing automatic focusing and a camera module with the actuator. Background technique [0002] At present, the actuator in the camera module that drives the lens module to move for autofocus usually includes a fixed frame, a movable frame accommodated in the fixed frame, a piezoelectric motor, a driven rod, a displacement sensor, and a sensed unit. , a drive circuit and a flexible circuit board on which the piezoelectric motor and the displacement sensor are installed. [0003] In order to meet the current demand for actuator miniaturization, the driven rod and the sensed unit are generally fixed on the two side walls of the fixed frame, and then the flexible circuit equipped with the piezoelectric motor and the displacement sensor The plate is assembled on the fixed frame in a bent manner, and the piezoelectric motor is matched with the driven rod, and the displ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/06G03B17/12
Inventor 丘祺纬吴松青
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD