Transverse flux machine

Abstract

In known transverse flux machines, the losses in the soft magnetic body prevent an increase in efficiency. While the production of the winding is remarkable owing to its simplicity, the production of the laminated iron body conveying the magnetic flux incurs high costs. In addition to the saturation in the iron, the use of air gaps restricts any increase in power density. In accordance with the invention, the two air gaps (21) are arranged radially externally of the winding (15) and the magnetically hard and/or soft magnetic rotor parts (19, 20) which periodically close the magnetic circuit are arranged axially within the ends of the soft magnetic stator body (18). This air gap arrangement gives rise to an air gap surface which is large relative to the external dimensions and the mass of the machine, and also relieves the load on the housing. Owing to the segmentation of this u-shaped stator body, material waste during production is minimized and grain-oriented metal sheets can be used which, owing to their favorable properties, enable the efficiency and power density to be increased. Segments of identical construction can be used in machines having different dimensions and power data. The type of construction according to the invention simultaneously reduces costs, weight, and losses in transverse flux machines.

Dependencies are inferred from the claim text.