US 12,311,227 B2
Magnetic actuator and rehabilitation device having the same
Li-Wei Cheng, Hsinchu (TW); Zhi-Yong Chen, Hsinchu (TW); and Jen-Yuan Chang, Hsinchu (TW)
Assigned to National Tsing Hua University
Filed by National Tsing Hua University, Hsinchu (TW)
Filed on Aug. 23, 2023, as Appl. No. 18/454,577.
Claims priority of application No. 112124348 (TW), filed on Jun. 29, 2023.
Prior Publication US 2025/0001248 A1, Jan. 2, 2025
Int. Cl. A63B 23/14 (2006.01); A63B 21/00 (2006.01)
CPC A63B 23/14 (2013.01) [A63B 21/00192 (2013.01); A63B 21/4033 (2015.10)] 18 Claims
OG exemplary drawing
 
1. A magnetic actuator comprising:
a base seat;
a motor disposed on said base seat;
a rotating unit including a rotating shaft that is rotatably disposed on said base seat, a rotating member that is sleeved on said rotating shaft, and an angle position sensor that is sleeved on said rotating shaft; and
a magnetic coupling unit connected to said motor and drivable by said motor to rotate, said magnetic coupling unit including two magnetic coupling subunits that are respectively connected to said motor and said rotating shaft, each of said magnetic coupling subunits including a magnetic ring that has a plurality of N pole portions and a plurality of S pole portions which are alternately arranged about a center of said magnetic ring, said N pole portions of said magnetic ring of one of said magnetic coupling subunits respectively corresponding in position to said S pole portions of said magnetic ring of the other one of said magnetic coupling subunits, when one of said magnetic coupling subunits that is connected to said motor is driven by said motor to rotate, the other one of said magnetic coupling subunits that is connected to said rotating shaft being urged to rotate by attraction between said magnetic rings of said magnetic coupling subunits such that said rotating shaft and said rotating member rotate.