Laminated core arrangement and electric machine with such a laminated core arrangement

Abstract

A laminated core arrangement for an electric machine includes a laminated core having at least two part cores which are arranged in an axial direction. Each of the part cores has a plurality of polygonal individual sheets, with at least one of the individual sheets being round and disposed between the part cores. The at least one round individual sheet has a diameter which is less than or equal to an inner circle of the polygonal individual sheets. Permanently-excited magnets are disposed around a circumference of the laminated core.

What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims and includes equivalents of the elements recited therein:  
     
         1 . A laminated core arrangement for an electric machine, comprising:
 a laminated core including at least two part cores arranged in an axial direction, each of the part cores having a plurality of polygonal individual sheets, with at least one of the individual sheets being round and disposed between the part cores, said at least one round individual sheet having a diameter which is less than or equal to an inner circle of the polygonal individual sheets; and   permanently-excited magnets disposed around a circumference of the laminated core.   
     
     
         2 . The laminated core arrangement of  claim 1 , wherein the magnets adjacent to the at least one round individual sheet touch each other. 
     
     
         3 . The laminated core arrangement of  claim 1 , wherein the magnets are sized to project beyond the part core at at least one end side of the laminated core. 
     
     
         4 . The laminated core arrangement of  claim 1 , wherein the part cores are rotated in relation to one another. 
     
     
         5 . An electric machine, comprising a laminated core arrangement which comprises a laminated core including at least two part cores arranged in an axial direction, each of the part cores having a plurality of polygonal individual sheets, with at least one of the individual sheets being round and disposed between the part cores, said at least one round individual sheet having a diameter which is less than or equal to an inner circle of the polygonal individual sheets, and permanently-excited magnets disposed around a circumference of the laminated core. 
     
     
         6 . The electric machine of  claim 5 , wherein the magnets adjacent to the at least one round individual sheet touch each other. 
     
     
         7 . The electric machine of  claim 5 , wherein the magnets are sized to project beyond the part core at at least one end side of the laminated core. 
     
     
         8 . The electric machine of  claim 5 , wherein the part cores are rotated in relation to one another.