Permanent magnetic circuit with oscillating coil arrangement and flow dynamic cooling e.g. for magnetoelectrodynamic coaxial drive systems

摘要

The circuit consists of a permanent magnetic drive system (1.1-1.9), a weakly magnetic reverse flux sleeve (1.12), a system carrier (1.10) and a coil carrier with one or more oscillation coils. The components are arranged with flow channels which enable flow dynamic cooling of the coils and magnets during dynamic operation of the coaxial drive system via the acoustic membrane. Three coils (1.13-1.15) are arranged to generate a mechanical force with a common direction. The coils are arranged mechanically in series and electrically in series or in parallel, equidistant and centrally symmetrical to the air gaps so that either all coils generate mechanical forces simultaneously or individually. Adjustment enables optimum compensation of manufacturing tolerances.