| 摘要 |
The present invention relates to a dual force voice coil linear actuator which realizes a small voice coil linear actuator, multiply forms the magnetic flux of a permanent magnet, and outputs several times forces compared to an existing actuator with the same size. The present invention includes: an outermost core which functions as a unit which moves a magnetic flux smoothly; a main magnet which is formed in the outermost core and generates a main magnetic flux; a first armature coil which generates a force by interacting with the main magnetic flux of the main permanent magnet according to a current supplied; an auxiliary permanent magnet which is installed in the lower part of the outermost core and generates auxiliary magnetic flux; a second armature coil which generates a force by interacting with the sub magnetic flux of the sub permanent magnet; and a moving unit which is moved by a force generated by the first armature coil and the second armature coil. |
