| 摘要 |
The invention relates to an electrodynamic linear oscillating motor characterised by high power densities in the magnet gap, magnetic return of the oscillating system to the centre position and a comparatively low weight of the oscillating system. The linear oscillating motor comprises a stator system, which is provided with at least one magnet (4) and an oscillating system which is supported such that it is able to move in the magnetic field of the stator. The oscillating system comprises at least one core (1) made of a magnetically soft material, e.g. a ferrite, and at least one driving coil (2, 3). The oscillating system is designed such that, if at least one driving coil (2,3) is de-energised, it is returned to the centre position by way of a reluctance force acting on the oscillating system. The electrodynamic linear motor in accordance with the present invention essentially combines the advantages of the known MC and MM linear motors, enabling electrodynamic conversion rates of up to 99% to be achieved. The linear oscillating motor is particularly suited as a drive for refrigeration and air-conditioning systems with low power ratings, as well as for pump, injection and shock absorber systems in automobile engineering.
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