Abstract: A linear motor includes a housing, a mover and a stator unit. The mover is movable relative to the housing, and includes a rod member, a plurality of first magnets mounted to the rod member, and a plurality of second magnets mounted to the rod member. The first and second magnets are arranged alternately in a circumferential direction of the rod member, and are partially overlapped circumferentially. The stator unit is disposed in the housing, surrounds the mover, and is able to be energized to drive reciprocal movement of the mover relative to the housing.

Abstract: A reciprocating electric motor includes a housing, a stator member disposed in the housing, a reciprocating armature movable relative to the housing, and. controller. The stator member includes first and second. electromagnet units opposite to each other in a longitudinal direction of the housing. The reciprocating armature includes first and second. elongated pole units each of which is moved into register with a corresponding one of the first and second electromagnet units when the corresponding one of the first and second electromagnet units is energized. The controller is configured to alternately energize the first and second electromagnet units to cause reciprocating movement of the reciprocating armature.