| 摘要 |
A motor unit intended to be mounted in a lock arrangement includes: an electric motor (52), a printed circuit board (53) which includes an electronic circuit arrangement (54) for controlling the motor, a sensor (57) mounted on the circuit board and connected electrically to the electronic circuit arrangement, and a mechanical follower coupling (55, 56). These components are housed in a housing (51), which constitutes a separate unit that can be mounted in a lock housing. The sensor and/or the mechanical coupling have at least two alternative placements to this end. The sensor is preferably mounted on a part (53a) of the circuit board that can be removed from the remainder of the circuit board. The arrangement of a separate motor unit enables the lock arrangement to be modularised, whereby a smaller number of parts need be stored and/or a greater variation of lock arrangements can be provided than was earlier possible. Greater electrical and mechanical reliability is also achieved.
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