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Shape memory alloy driving device

A technology of memory alloy and driving device, which is applied in the direction of machines/engines, mechanisms that generate mechanical power, mechanical equipment, etc., can solve the problems of low thermal conductivity of paraffin wax, long response time of the driver, etc., and achieve the effect of easy restoration of the original state

Inactive Publication Date: 2020-05-08
SUZHOU GUOJIA MEMORY ALLOY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The paraffin driver uses the paraffin with a large volume coefficient to undergo a liquid-solid phase transition accompanied by volume expansion and contraction. The displacement mode is mainly linear, and the liquid paraffin must be sealed in the container. The thermal conductivity of paraffin is low, and the response time of the driver is long.

Method used

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  • Shape memory alloy driving device
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Examples

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Embodiment Construction

[0013] Such as figure 1 , figure 2 As shown, a shape memory alloy driving device includes an output end 1, a TiNi shape memory alloy wire 2, a base 3, and a compression spring 4. A connecting rod is arranged at the bottom of the output end 1, and a compression spring 4 is set on the connecting rod, and the bottom end of the connecting rod is Inserted into the central socket of the base 3, the TiNi shape memory alloy wire 2 is an inverted U-shaped structure, the upper part of the TiNi shape memory alloy wire 2 is connected to the output end 1, and the lower two ends of the TiNi shape memory alloy wire 2 run through the base 3 Afterwards, they are respectively connected to the positive and negative poles of the power supply to form a closed loop. Two installation holes are symmetrically arranged on the base 3, and contacts 5 are respectively arranged on the installation holes. The two ends of the lower part of the wire 2 are connected, the lower part of the contact 5 is respec...

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Abstract

The invention discloses a shape memory alloy driving device. The shape memory alloy driving device comprises an output end, a TiNi shape memory alloy wire, a base and a compressed spring, a connectingrod is arranged at the bottom of the output end and sleeved with the compressed spring, the bottom end of the connecting rod is inserted into a center inserting hole of the base, and the TiNi shape memory alloy wire is of an inverted-U-shaped structure, the upper portion of the TiNi shape memory alloy wire is connected with the output end, and the two ends of the lower portion of the TiNi shape memory alloy wire penetrate through the base and then are connected with the positive electrode and the negative electrode of a power source correspondingly to form a closed loop. According to the shape memory alloy driving device, the problems that an existing driving device is small in displacement and the response time of a driver is long can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of micro drives, in particular to a shape memory alloy drive device. Background technique [0002] At present, common micro-drives include ordinary bimetallic and paraffin drivers. The bimetal is welded together by two or more metal sheets with different expansion coefficients. Bending occurs in the direction of the mating surface, and the displacement is small. The paraffin driver uses the paraffin with a large volume coefficient to undergo a liquid-solid phase transition accompanied by volume expansion and contraction. The displacement mode is mainly linear, and the liquid paraffin must be sealed in the container. The thermal conductivity of paraffin is low, and the response time of the driver is long. Contents of the invention [0003] In view of the above technical problems, the present invention provides a shape memory alloy driving device, which can avoid the problems of small displacement and long ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G7/06
CPCF03G7/065
Inventor 李景元韩步云聂永胜申光马悦辉陈友阳刘东史芳杰
Owner SUZHOU GUOJIA MEMORY ALLOY CO LTD
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