THERMOELECTRIC ELEMENT EMBEDDED-TYPE ACTUATOR MODULE AND APPARATUS FOR DRIVING ACTUATOR

WIPO Patent Application WO/2021/153963

A1

The present invention relates to an actuator module formed of a shape-memory alloy spring and having a thermoelectric element embedded therein, and an actuator driving apparatus for driving the actuator module, the actuator module comprising: one or more actuators that have spring shapes and are manufactured by using wires of a shape-memory alloy material that contracts and relaxes in response to heat; a plurality of thermoelectric elements each including an acting surface facing the actuator and a reaction surface located opposite to the acting surface, wherein the acting surface and the reaction surface each act as a heat absorption surface or a heating surface according to a direction in which electric power is applied; heat transfer members located respectively on the acting surface and the reaction surface for transferring heat between the actuator and the thermoelectric elements and between the thermoelectric elements and air; an electrical heating member for applying heat to the reaction surface; one or more temperature sensors for sensing the peripheral temperature of the actuator; and a controller for contracting or relaxing the actuator by controlling the direction of electric power applied to the thermoelectric elements and controlling the contracting length or relaxing length of the actuator according to the sensed peripheral temperature of the actuator.

KO JUNG-CHAN (KR)
KO SEONG JUN (KR)

PCT/KR2021/000985

August 05, 2021

January 25, 2021

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KO JUNG CHAN (KR)

F03G7/06; H01L35/30

KR101738069B1	2017-05-22
JPH09133069A	1997-05-20
JP3988336B2	2007-10-10
JPH08165984A	1996-06-25
KR101922556B1	2018-11-28

KIM, Youn Gwon (KR)

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