Method of using sma wire to drive moving parts

A technology of moving parts and line drive, which is applied to the parts of color TV, parts of TV system, electrical components, etc. It can solve the problems such as difficulty in improving efficiency and achieve the effect of improving work efficiency

Active Publication Date: 2021-10-08
NINGBO SUNNY OPOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of heating the SMA wire takes a certain amount of time, and when the SMA wire reaches the expected stroke, due to the elastic characteristics of the SMA wire itself, it takes a long time for the SMA wire to stabilize at the expected stroke position. It is difficult to improve the efficiency of driving lens movement

Method used

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  • Method of using sma wire to drive moving parts
  • Method of using sma wire to drive moving parts
  • Method of using sma wire to drive moving parts

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Embodiment Construction

[0022] For a better understanding of the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are descriptions of exemplary embodiments of the application only, and are not intended to limit the scope of the application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] It should be noted that in this specification, expressions of first, second, etc. are only used to distinguish one feature from another, and do not represent any limitation on the features. Accordingly, a first body discussed hereinafter may also be referred to as a second body without departing from the teachings of the present application.

[0024] In the drawings, the thickness, size and shape of objects have been slight...

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Abstract

The present application discloses a method for using SMA wires to drive the movement of movable parts, including: raising the temperature of the first SMA wire to a first temperature, and raising the temperature of the second SMA wire to a second temperature, wherein the first temperature is higher than that of the SMA wire The deformation critical temperature, the second temperature is lower than or equal to the deformation critical temperature, the first SMA line at the first temperature and the second SMA line at the second temperature are respectively in the first contraction position and the second stretching position after stabilization, so The movable part is driven by the first SMA wire and the second SMA wire to move to a desired position corresponding to the first retracted position and the second stretched position.

Description

technical field [0001] The present application relates to a method of using SMA wires to actuate the movement of moving parts. Background technique [0002] Shape memory alloys (Shape Memory Alloys, referred to as SMA) is an alloy material that can eliminate its deformation at a lower temperature after heating and restore its original shape before deformation, that is, an alloy with a "memory" effect. The SMA wire can be used in the camera module to replace the motor to drive the lens to move, so as to realize optical functions such as focusing. Compared with the traditional motor, the SMA wire has a smaller volume, which can effectively reduce the overall size of the module and facilitate the miniaturization of the module. [0003] The use of SMA wires to drive the lens movement is realized through the contraction of the SMA wires at higher temperatures. During the movement, when part of the SMA wires shrink, the other part of the SMA wires is in a stretched state to match...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/04H04N5/225
CPCG02B7/04H04N23/50H04N23/55
Inventor 陈振宇方银丽涂洪德张建龙丁海灵
Owner NINGBO SUNNY OPOTECH CO LTD
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