Electric machine, method for producing a mechanical magnetic-field-attenuating mechanism, mechanical magnetic-field-attenuating mechanism, and kit of parts

A mechanical field-attenuating mechanism for a rotor of an electric machine, wherein the rotor has at least one first rotor body and a second rotor body, wherein the first rotor body and the second rotor body are rotatable relative to each other about a common rotational axis against an effect of a first torsional stiffness,

• wherein the first torsional stiffness is designed as a first leg spring arrangement having a first leg spring, which is arranged coaxially to the rotational axis and between the first rotor body and the second rotor body or between one of the rotor bodies and a rotor shaft in such a way that rotation of one of the rotor bodies, which begins when the field-attenuating mechanism is adjusted, causes the first leg spring to open or close, and
• wherein a first spring leg of the first leg spring is held in a first receiving shoe, which in turn is received in a first receiving pocket of the first rotor body and is fixed to the first rotor body in such a way that the first spring leg of the first leg spring is coupled to the first rotor body in a play-free manner in an axial direction as well as in a circumferential direction relative to the first rotor body.

A kit of parts for producing a mechanical field-attenuating mechanism for a rotor of an electric machine, the kit comprising:

• a first rotor body, having a first receiving pocket, and a second rotor body, wherein the first rotor body and the second rotor body can be rotated relative to each other about a common rotational axis against an effect of a first torsional stiffness,
• a first torsional stiffness, which is configured as a first leg spring arrangement having a first leg spring which is positioned coaxially to the rotational axis and between the first rotor body and the second rotor body or between one of the rotor bodies and a rotor shaft in such a way that rotation of one of the rotor bodies which begins when the field-attenuating mechanism is adjusted, causes the first leg spring to open or close, and the first leg spring has a first spring leg, and
• a first receiving shoe in which the first spring leg is positioned and the receiving shoe in turn is received in the first receiving pocket of the first rotor body and is fixed to the first rotor body in such a way that the first spring leg of the first leg spring is coupled to the first rotor body in a play-free manner in an axial direction as well as in a circumferential direction relative to the first rotor body.