Linear motor for e.g. drilling hammer, has rotor comprising two magnets and movably supported between two cores and two air gaps in filled manner, where two air gaps comprise plane that comprises rotor movement axis

摘要

The motor (100) has a stator (50) comprising two cores (52, 54), where two air gaps (60, 70) are formed between the two cores such that magnetic flux (90) passes through the two cores of the stator and the air gaps. A rotor (10) comprises two magnets that exhibit two magnetic alignments in two regions of the air gaps, respectively. The two air gaps comprise a plane that comprises a rotor movement axis (20). The rotor is movably supported between the two cores and the two air gaps in a filled manner. Surfaces of the two cores are spaced from each other.