Configurable components for shape memory alloy (SMA) actuators

By designing a configurable shape memory alloy actuator, using a variable bracket and a customized SMA wire length, the problem of mismatch between wire length and bracket size is solved, improving the actuator's flexibility and reliability, and adapting it to various application scenarios.

CN122249639APending Publication Date: 2026-06-19HUTCHINSON TECH INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUTCHINSON TECH INC
Filing Date
2024-11-26
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing shape memory alloy (SMA) actuators suffer from mismatches between wire length and bracket size in different systems, resulting in reduced elasticity and poor reliability, making them difficult to adapt to various application scenarios.

Method used

A configurable shape memory alloy actuator was designed, employing a variable bracket and a custom SMA wire length, combined with a universal base and free end, and achieving electrical isolation and mechanical connection through etched grooves and mechanical shearing sections to adapt to different system requirements.

Benefits of technology

It improves the flexibility and reliability of the actuator, enhances the applicability of welding wire length, reduces energy consumption, and maintains versatility in different orientations.

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Abstract

This embodiment relates to shape memory alloy (SMA) actuator designs that may have custom-sized SMA filament lengths and / or brackets specific to different systems (e.g., optical image stabilization systems, autofocus systems). The actuator may include a universal base (or fixed end) and a universal end portion (or free end), both of which are interchangeable in different SMA designs.
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