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SMA actuating mechanism, camera module and electronic equipment

The technology of an actuating mechanism and a camera module is applied in the direction of cameras, camera focusing devices, and projector focusing devices, etc., which can solve the problems of high manufacturing difficulty, large occupied volume, and large volume of SMA actuating mechanisms, and achieve compact structure, The effect of simplifying the circuit structure

Pending Publication Date: 2020-02-18
SEADEC TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical defect of the camera module provided with the SMA actuation mechanism in the prior art is that the structure of the SMA actuation mechanism is relatively complicated, resulting in a larger volume occupied by the SMA actuation mechanism and higher manufacturing difficulty
In addition, in order to realize the focus and anti-shake of the camera module, multiple sets of SMA actuating mechanisms are usually required in the camera module, which leads to more obvious problems of occupying a large volume and making it difficult to manufacture.

Method used

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  • SMA actuating mechanism, camera module and electronic equipment
  • SMA actuating mechanism, camera module and electronic equipment
  • SMA actuating mechanism, camera module and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This part will describe the specific embodiment of the present invention in detail, and the preferred embodiment of the present invention is shown in the accompanying drawings. Each technical feature and overall technical solution of the invention, but it should not be understood as a limitation on the protection scope of the present invention.

[0038]In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0039] In...

Embodiment 2

[0066] refer to Figure 10 and 11The difference between this embodiment and Embodiment 1 is that the two sections of SMA wires 110 are separated, and the driven part 130 is a conductor, and the driven part 130 makes the two separated sections of SMA wires 110 form an electrical connection. The two sections of SMA wires 110 are arranged separately, so that the lengths of the two sections of SMA wires 110 can be adjusted separately, so that the two sections of SMA wires 110 can be calibrated independently, which is beneficial to improve the motion accuracy of the SMA actuator mechanism.

[0067] Regarding the SMA wire 110, the SMA wire 110 and the first contact plate 120 can be fixed by welding, and the SMA wire 110 and the driven part 130 can also be fixed by welding, so that the SMA wire 110 and the first contact plate 120 and the driven part 130 can be fixed by welding. An electrical connection may be formed between the driving elements 130 .

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Abstract

The invention discloses an SMA actuating mechanism, a camera module and electronic equipment. The SMA actuating mechanism comprises two first contact plates being conductors, two sections of SMA wires, and a driven member. The one end of each of the two sections of SMA wires is connected with each of the two first contact plates electrically. The two sections of SMA wires are connected in series between the two first contact plates to form electric connection; and the included angle between the two sections of SMA wires is larger than zero. One end of each of the two sections of SMA wires is intersected with the driven member and the two sections of SMA wires are arranged symmetrically relative to the driven member. The SMA actuating mechanism has the beneficial effects that: the two sections of SMA wires are connected in series between the two first contact plates to form electric connection, so that the contraction of the two sections of SMA wires is synchronous; the circuit structure between the two sections of SMA wires can be simplified and the structure of the SMA actuating mechanism is compact. The invention relates to electronic equipment.

Description

technical field [0001] The invention relates to electronic equipment, in particular to an SMA actuating mechanism, a camera module and electronic equipment. Background technique [0002] An actuator (actuating device) is a commonly used driving mechanism in the electronic field, and can be used to drive a camera. SMA stands for shape memory alloy, which is a type of drive element in an actuator. SMA is a material composed of two or more metal elements that has a shape memory effect (SME) through thermoelasticity and martensitic phase transformation and its inversion. SMA can be deformed at a lower temperature, and can recover the shape before deformation after being heated by electricity, so as to realize electronically controllable shrinkage. [0003] The Insert Molding Bottom includes an insert set and an injection molded body. The injection molded body is generally made of plastic, and the insert set is generally made of different materials other than plastic. Injectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/04G02B27/64G03B13/34G03B5/00G03B30/00
CPCG02B7/04G02B27/646G03B13/34G03B5/00
Inventor 刘述伦陈林耿新龙
Owner SEADEC TECH LTD