US 11,685,044 B2
Actuator and active plate having the same
Sohyun Kim, Seoul (KR); and Youngsu Cha, Seoul (KR)
Assigned to Korea Institute of Science and Technology, Seoul (KR)
Filed by KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed on Sep. 14, 2021, as Appl. No. 17/474,384.
Claims priority of application No. 10-2020-0122324 (KR), filed on Sep. 22, 2020.
Prior Publication US 2022/0088774 A1, Mar. 24, 2022
Int. Cl. B25J 9/14 (2006.01); F15B 21/06 (2006.01); F15B 15/10 (2006.01); B25J 15/00 (2006.01)
CPC B25J 9/142 (2013.01) [B25J 15/0023 (2013.01); F15B 15/10 (2013.01); F15B 21/065 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An actuator, comprising:
a pouch which is sealed, and formed with an asymmetric structure;
a dielectric fluid which is filled in the pouch; and
electrodes which are attached respectively to one surface of the pouch and another surface opposite the one surface,
wherein the pouch includes:
a first part provided on one side and having a predetermined area; and
a second part provided on another side opposite the one side and having a smaller area than the first part,
wherein when power is applied to the electrodes, the first part or the second part of the pouch is expandable by movement of the dielectric fluid due to the asymmetric structure, and
wherein the electrodes include:
a first electrode attached to one surface of the first part and another surface opposite the one surface of the first part; and
a second electrode attached to one surface of the second part and another surface opposite the one surface of the second part.