Actuator mechanism

Patent metadata

Field	Value
Publication number	US-12201027-B2
Application number	US-202118015871-A
Country	US
Kind code	B2
Filing date	Apr 15, 2021
Priority date	Jul 23, 2020
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

An actuator mechanism for a body is disclosed. The actuator mechanism has at least one actuator produced from an electro-active polymer material that changes form due to electrical energy, thereby actuating the body The actuator mechanism also has at least two strengtheners allowing the actuator to change its form, each holding the actuator from a different side, and positioned oppositely on the body The actuator mechanism further has at least one retainer tip holding the actuator from at least one side thereof.

First claim

The invention claimed is:

1. An actuator mechanism ( 1 ) comprising:
a body ( 2 ),
at least one actuator ( 3 ) produced from an electro-active polymer material that changes form due to electrical energy, thereby actuating the body ( 2 ),
at least two strengtheners ( 4 ) allowing the actuator ( 3 ) to change its form, each holding the actuator ( 3 ) from a different side, and positioned oppositely on the body ( 2 ),
at least one retainer tip ( 5 ) holding the actuator ( 3 ) from at least one side thereof,
at least one retainer ( 6 ), which is mounted to two opposite strengtheners ( 4 ), to which the retainer tips ( 5 ) enabling to hold the actuator ( 3 ) are detachably attached, and to which the actuator ( 3 ) is secured by being tightened with more than one retaining tips ( 5 ) at intervals,
wherein the retainer ( 6 ) has a first position (I) such that when the actuator ( 3 ) is not energized, the actuator ( 3 ) is stretched via the retainer ( 6 ) by ensuring the side of the actuator ( 3 ) that is close to the retainer ( 6 ) is compatible with the geometry of the retainer ( 6 ) and
wherein the retainer ( 6 ) has a second position (II) such that it enables limitation of the form change of the actuator ( 3 ) coming from the first position (I) when the actuator ( 3 ) is energized.

2. An actuator mechanism ( 1 ) as claimed in claim 1 , wherein the retainer ( 6 ) extends between two oppositely positioned strengtheners ( 4 ), one end of the retainer being mounted to one strengthener ( 4 ) and the other end thereof to the other strengthener ( 4 ).

3. An actuator mechanism ( 1 ) as claimed in claim 1 wherein the retainer tip ( 5 ) which is located between the actuator ( 3 ) and the retainer ( 6 ), holds by pinching the side of the actuator ( 3 ) that is close to the retainer ( 6 ), is slidingly placed into the retainer ( 6 ) and slides in the retainer ( 6 ) with the actuator ( 3 ) changing its form as a function of electrical energy.

4. An actuator mechanism ( 1 ) according to claim 1 , comprising more than one retainer tip ( 5 ) which holds by pinching the actuator ( 3 ) at equal intervals and when the actuator ( 3 ) changes its form, enables the distance between them to remain equal by sliding in the retainer ( 6 ).

5. An actuator mechanism ( 1 ) according to claim 1 , comprising a flexible curved retainer ( 601 ) which has a concave or convex form and becomes almost flat when the actuator ( 3 ) is energized.

6. An actuator mechanism ( 1 ) according to claim 1 , comprising a telescopic retainer ( 602 ) that extends telescopically when the actuator ( 3 ) is energized.

7. An actuator mechanism ( 1 ) according to claim 1 , comprising a sliding retainer ( 603 ) sliding from the point where it is connected to the strengtheners ( 4 ) when the actuator ( 3 ) is energized.

8. An actuator mechanism ( 1 ) according to claim 1 , wherein the retainer ( 6 ) is produced from a shape memory alloy.

9. An actuator mechanism ( 1 ) according to claim 1 , wherein the retainer tip ( 5 ), which is located between the actuator ( 3 ) and the retainer ( 6 ), holds by pinching the side of the actuator ( 3 ) close to the retainer ( 6 ) along its length and has a flexible structure and is slidingly placed into the retainer ( 6 ).

10. An actuator mechanism ( 1 ) according to claim 1 , wherein the retainer tip ( 5 ) is produced from an elastic material.

11. An actuator mechanism ( 1 ) according to claim 1 , wherein the retainer tip ( 5 ) of which the surface holding the actuator ( 3 ) is serrated to increase its retaining strength.

12. An actuator mechanism ( 1 ) according to claim 1 , wherein the actuator ( 3 ) has at least one elastomeric film ( 7 ) with a dielectric structure and at least two conductive layers ( 8 ) coated on the elastomeric film ( 7 ) and enabling the elastomeric film ( 7 ) to change its shape under the electric field effect caused by a voltage applied to it by a control unit (K).

13. An actuator mechanism ( 1 ) as claimed in claim 12 , wherein the conductive layer ( 8 ) is at least one of silicone/graphite, carbon conductive grease, carbon-based or silver grease material that, while maintaining its conductivity property, changes its form together with the elastomeric film ( 7 ) when the elastomeric film ( 7 ) changes its form.

14. An actuator mechanism ( 1 ) according to claim 1 , comprising at least one control surface ( 9 ) located on a body ( 2 ) of an air vehicle and enabling control the air flow by making a relative movement with respect to the body ( 2 ) when the actuator ( 3 ) changes its form.

Assignees

• Tusas Turk Havacilik Ve Uzay Sanayii Anonim Sirketi

Inventors

• Camlica Fahri Bugra

Classifications

• B64C3/38

  Adjustment of complete wings or parts thereof · CPC title

• B64C13/50

  using electrical energy · CPC title

• H10N30/857

  Macromolecular compositions · CPC title

• F03G7/0121 Primary

  Electroactive polymers · CPC title

• H10N30/206 Primary

  using only longitudinal or thickness displacement, e.g. d33 or d31 type devices · CPC title