| 摘要 |
A linear motor includes a tubular housing (10), a driving member (40), and a magnetic unit (20). The driving member (40) is movably disposed in the tubular housing (10) and includes a permanent magnet/electromagnet (41). The magnetic unit (20) includes first and second magnets/electromagnets (21, 22), each of which covers a respective one of first and second open ends (101, 102) of the tubular housing (10). Alternate reversal of a polarity of a magnetic field of the magnet (41) of the driving member (40) or alternatively reversal of polarity of magnetic units 20 cause reciprocating movement. Contact areas 30,70 are associated with contacts 44 to appropriately energize the mover or a sensor 60 caused the coils 22 to be appropriately energized. Drive member 5 may drive a crank mechanism to obtain rotary movement. |
