Patent ID: 9705368
Date: 2017-07-11
CPC Classifications: H02K

Claim:
1. An electrical motor having a rotor, the rotor comprising: a laminated core made up of a stacked plurality of laminating sheets each having an external ring and a core area; each laminating sheet having at least two tangentially extending slots, in each of which at least one permanent magnet is accommodated; and at least one of the laminating sheets has at least one elastic arm which is arranged between the at least two permanent magnets and lies against a permanent magnet and acts resiliently upon the permanent magnet in an essentially tangential direction, wherein the elastic arm of the one laminating sheet, with a first area of its axial surface, makes two-dimensional contact with a contact area of a connecting rod connected to and defined between the external ring and the core area of a further adjacent laminating sheet and is guided by the contact area of the connecting rod essentially tangentially in a manner that resists torsion and/or bending, that the elastic arm with a further area of the same axial surface cannot make contact on the same further laminating sheet thus defining a non-adjacent area, and that the elastic arm is substantially deformed by the permanent magnet in the tangential direction and rests elastically against the permanent magnet.