Electrical devices, particularly electrical shavers, having magnetically coupled drives, and adapters therefor

摘要

An electrical device includes a housing having an electrical drive motor and a drive magnet mechanically coupled thereto; a sealing end wall sealing the motor and magnet within the housing; and a load device including a driven magnet magnetically coupled to the drive magnet through the sealing end wall. The driven magnet is included within a separate magnetic coupling unit attachable to and detachable from one end of the housing and mechanically coupled to the load device. The invention is particularly useful in electrical shavers for driving cutter holders. It may be embodied as an adapter for use with existing electrical shavers or other electrical devices driving loads.