Robert Boschgmbh

Seg Automotive Germany Gmbh

Guenter Rademacher

Martin Schulz

Ngoc-Thach Nguyen

Klaus Herbold

Hans-Joachim Lutz

Christa Bauch

Vincent Riou

Gianna Nario-Rivera

Reinhard Meyer

Christian Dayan

Roberto Carlos Retana Hernandez

Guillermo Saiz

Paola Zapico Fanjul

A holding element () for attaching magnets () to a rotor () of an electrical machine (). This electrical machine is, in particular, designed as an AC generator and comprises intermediate spaces () between the individual poles (). The holding element () comprises a top side () and spring lugs () which axially fix the magnets (). The holding element () has claw-like projections () which bear against flanks () of the poles () when the holding element () is in the fitted state.

Holding means for electrical machines

A claw-pole rotor for an electrical machine, in particular a rotary current generator, having two pole wheels (), which each carry claw poles (and, respectively), which each originate in a plate region () and have a pole root (), and on a circumference of the claw-pole rotor (), claw poles () of the pole wheels () are located in alternation, and located between the claw poles or interstices (), and a claw pole () has a radially outward-oriented cylindrical-jacketlike surface (), by which a pivot axis () is defined, and a chamfer () extends on the one hand in a circumferential direction and on the other in an edge direction of a claw pole (and, respectively), wherein the chamfer () has a center portion m in the edge direction that intersects a transition plane () which demarcates the pole root () and the freely projecting part of the claw pole (and, respectively), and the center portion m amounts to 8/10 of the length, oriented in the edge direction, of the chamfer (); and that the claw pole () has a width B, oriented in the circumferential direction, and a half width Bon the cylindrical surface (), in a plane of the claw pole () that is vertical to the pivot axis (), defines a point (P), and a tangent (T) can be inscribed into this point (P), and an angle of inclination &#x3b1; which has a magnitude of between 15&#xb0; and 25&#xb0; is enclosed between the tangent (T) and the chamfer () in the plane that is vertical to the pivot axis ().

Claw-pole rotor for an electrical machine

Growing community of inventors

Filderstadt-Harthausen, Germany

Guenter Rademacher