Patent ID: 6548921
Filing Date: 2003-04-15
Classification: H02K

Abstract:
A linear actuator comprising:a linear output unit; a supporting unit with a stopper, said supporting unit having a first pipe, said stopper being attached to one end of said first pipe, and a part of said linear output unit being slidably accommodated in said first pipe; a movable unit having elasticity connected to said stopper at one end of said movable unit and to said linear output unit at the other end thereof; and a magnetic flux generating unit for generating first magnetic fluxes; wherein said movable unit generates second magnetic fluxes in a direction orthogonal to said first magnetic fluxes, said movable unit expands or contracts based on interaction between said first magnetic fluxes and said second magnetic fluxes, and said linear output unit moves linearly in response to expansion or contraction of said movable unit.