LINEAR MOTOR AND COMPRESSOR HAVING THE SAME

摘要

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.

主权项

1. A linear motor comprising:
a housing; a mover movable relative to said housing along an axis and having a portion that is disposed in said housing, said mover including a rod member that extends along the axis, a plurality of first magnets that are mounted to said rod member, and a plurality of second magnets that are mounted to said rod member, each of said first magnets having an overlapping portion and an extending portion, each of said second magnets having an overlapping portion and an extending portion, said overlapping portions of said first magnets and said overlapping portions of said second magnets being arranged alternately in a circumferential direction of said rod member, said extending portions of said first magnets extending respectively from said overlapping portions of said first magnets in a first direction of the axis, said extending portions of said second magnets extending respectively from said overlapping portions of said second magnets in a second direction of the axis opposite to the first direction; and a stator unit disposed in said housing and surrounding said mover, said stator unit being able to be energized to drive reciprocal movement of said mover relative to said housing.