Shape Metal Alloy (SMA) Bimorph Actuators And Methods For Manufacturing The Same
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United States of America Patent
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Issued Date -
Oct 17, 2024
app pub date -
Apr 12, 2023
filing date -
Apr 12, 2023
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Abstract
The present embodiments relate to a shape memory alloy (SMA) actuator with a reduced number of materials for manufacturing the actuator. In some instances, elements of the SMA actuator can comprise a dielectric material disposed on the actuator via an injection molding process. In other instances, the SMA actuator can dispose SMA wires above a base of the SMA actuator without the use of any dielectric material. In a first example, an SMA actuator can include a carriage and a base. The base can include a fixed end fixed to the carriage, a free end, a beam connecting the fixed end and the free end, and at least one SMA wire. The SMA actuator can also include an insulator comprising a dielectric material electrically isolating a set of electrical contacts at the fixed end.
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