Electric drive motor

An electric drive motor, comprising:

• a stator having pole shoes and at least one electrically actuatable stator winding having a field;
• a permanent-magnet rotor rotatably and drivably mounted in the field of said stator winding and defining an annular gap between said rotor and said stator, said rotor having a tensioning device;
• a motor shaft;
• an injection-molded magnet carrier disposed on said motor shaft, said magnet carrier having a circumference and an injection mold with a cavity defining an inner wall;
• and
• a plurality of separate permanent magnets disposed on said magnet carrier and distributed over said circumference of said magnet carrier, said plurality of permanent magnets being pushed in radial directions outwardly against said inner wall by said tensioning device during injection molding of said magnet carrier.

A method for producing an electric drive motor, the method comprising the following steps:

• injection-molding a magnet carrier in an injection mold having a cavity defining an inner wall;
• distributing a plurality of separate permanent magnets over a circumference of the magnet carrier;
• using a tensioning device of a permanent-magnet rotor to push the plurality of permanent magnets in radial directions outwardly against the inner wall during the injection molding of the magnet carrier;
• placing the magnet carrier on a motor shaft;
• providing a stator having pole shoes and at least one electrically actuatable stator winding having a field;
• and
• rotatably and drivably mounting the permanent-magnet rotor in the field of the stator winding and defining an annular gap between the rotor and the stator.