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Shape memory alloy actuator

A memory alloy and memory alloy spring technology, which is applied to machines/engines, mechanisms that generate mechanical power, mechanical equipment, etc., can solve problems such as overheating of shape memory alloy materials, and achieve the effects of cost saving, simple structure and fewer components.

Pending Publication Date: 2022-04-12
HEFEI MIDEA REFRIGERATOR CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This application provides a shape memory alloy actuator to solve the technical problem of overheating of shape memory alloy materials

Method used

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  • Shape memory alloy actuator
  • Shape memory alloy actuator
  • Shape memory alloy actuator

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Embodiment Construction

[0019] Next, the technical solutions in the present application embodiment will be described in the present application embodiment, and it is clear that the described embodiments are intended to be a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, one of ordinary skill in the art is in the scope of the present application without making creative labor premistence.

[0020] The "Embodiment" mentioned herein means that the specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the present application. This phrase is not necessarily a separate or alternative embodiment of the same embodiment in each position in the specification. Those skilled in the art is, and the embodiments described herein may be combined with other embodiments.

[0021] See Figure 1 to 3 , figure 1 It is a general schematic diagram of an embod...

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Abstract

The invention discloses a shape memory alloy actuator, which comprises a shell in which a first position and a second position are arranged; the moving part is movably arranged on the shell and moves between a first position and a second position; the first elastic piece is arranged in the shell and abuts against one side of the moving piece; the second elastic piece is arranged in the shell and abuts against the other side of the moving piece; the second elastic piece is a shape memory alloy; under the condition that the second elastic piece is not influenced by the temperature, the first elastic piece and the second elastic piece act on the moving piece, so that the moving piece is located at the first position; under the condition that the second elastic piece deforms due to the influence of the temperature, the first elastic piece acts on the moving piece, so that the moving piece moves from the first position to the second position, the second elastic piece is separated from the moving piece, and the influence of the temperature is suspended. The shape memory alloy actuator has the self-protection and self-recovery functions, the shape memory alloy is prevented from being damaged, the structure of the actuator is simple, cost is saved, and the size is small.

Description

Technical field [0001] The present application belongs to the technical field of actuator, and is specifically related to a shape memory alloy actuator. Background technique [0002] The shape memory alloy (SMA) actuator performs a different shape by higher than or below its transition temperature. This allows the shape memory alloy to withstand the phase change from the martensite to the austenite state, wherein the material is contracted or a length and is used in the process. Typically, the shape memory alloy actuator is higher than its transition temperature by means of heating through the shaped memory alloy. The problem is that overheating (ie, the shape memory alloy material has not stopped after the expected transition). The overheating causes a longer cooling time, and the wire can be damaged in some cases. Therefore, there is an urgent need to prevent the effective stability of the shape memory alloy material overheating. Inventive content [0003] This application pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G7/06
Inventor 尹焘
Owner HEFEI MIDEA REFRIGERATOR CO LTD
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