Siemens Aktiengesellschaft

Flender Gmbh

Martin Junge

Ulrich Hartmann

Andreas Jöckel

Oliver Memminger

Klaus Schifferer

Axel Möhle

Karsten Brach

Georg Walberer

Joachim Mucha

Christoph Rogginger

Günther Winkler

Friederike Richter

Gordon Trogisch

Martin Kristl

Daniel Kermas

Bernhard Urlhart

Wilfried Luchs

Johannes Germishuizen

Michael Weidemann

Arne Grüning

Robert Schwengber-Walter

Kornel Feher

Andreas Joeckel

Axel Mohle

Andreas Jockel

A dynamo-electrical machine includes a stator and a rotor rotatable relative to the stator about an axis of rotation, the stator and/or the rotor having a plurality of segments arranged one after another in a rotational direction of the rotor, the segments each having opposing ends facing in opposite rotational directions, and being provided with flanges on the opposing ends, with respective flanges of neighboring ones of the segments in confronting relationship, each of the flanges having at least one hole oriented in the rotational direction, the at least one hole of at least one of the respective confronting flanges having an internal thread and threadably receiving a sleeve having an external thread, the respective confronting flanges being spaced apart by the sleeve, wherein a screw is received through the at least one hole of the one of the respective confronting flanges and through the sleeve and engages in the at least one hole of the other one of the respective confronting flanges, thereby exerting a force on the one of the respective confronting flanges, and connects the respective confronting flanges to each other via the sleeve.

Dynamo-electrical machine with segmented stator structure and/or rotor structure

A rotor for an electric machine has a surface with projections. Each projection protrudes from the rotor in an essentially axial direction and is configured to define a groove between the projection and the surface. The groove of one projection of two adjacent projections and the groove of the other one projection of the two adjacent projections is open towards a region between the adjacent two projections. A cover engages in the grooves of the adjacent two projections, and a sealing compound is applied in the form of a fillet seam between the cover and the adjacent two projections. Received in an intermediate space between the cover and the surface is a permanent magnet, and a pouring compound is received in a remaining hollow space defined between the permanent magnet and the cover and/or the permanent magnet and the surface.

Mounting of permanent magnets on a rotor of an electric machine

In a method an inner segment is first pre-assembled on each of a number of outer segments by at least one fixing element, so as to produce a plurality of segment modules having each a predetermined air gap between the inner segment and the outer segment. The inner segments and the outer segments are assigned to the rotor or stator of the electrical machine. The inner segments of the plurality of segment modules are fastened to an inner assembly device (for example a hub). The outer segments of the plurality of segment modules are fastened to an outer assembly device (for example a supporting structure). Finally, the fixing elements between the inner segments and the outer segments are removed.

Method for assembling a segmented electrical machine while maintaining gaps between segments

The invention relates to an annular rotor having a hollow shaft for an electric machine. In order to allow transport of such a machine, particularly for a very large model, the rotor is divided in the circumferential direction into a plurality of partial annular rotor segments (). The rotor further comprises a hollow shaft, wherein the closed ring shape of the rotor can be broken by separating the rotor segments () from each other.

Annular rotor for an electric machine

The invention relates to an end turn arrangement in a stator of a dynamoelectric machine. In order to reduce, in a simple fashion, the volume required for the end turns of the form-wound coils, the stator is formed of segments () that have a substantially circular arc-shaped cross-section and can be combined into a stator by adding one or more other segments () having the same design. Each segment () has recesses (), within which at least one first form-wound coil (), which is bent outward in the radial direction of the stator in the region of the end turns, and at least one second form-wound coil (), which is bent inward in the radial direction of the stator in the region of the end turns, are arranged in the form of a tiered winding.

End turn arrangement

Growing community of inventors

Grafenau, Germany

Martin Junge