Electrical machine
OwnerGerhardt Pflueger, Hans-Peter Groeterinventors
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Abstract
The invention concerns an electrical machine, in particular an alternator, having a stator situated in a housing and carrying a stator winding, and having a claw-pole rotor system that is supported on a shaft and has two pole rings designed as pole pieces that extend outward to form claws that mesh into each other, and having a field coil enclosed by the claw-pole rotor system, in particular situated on the shaft. It is provided that the claw poles (15, 15′) are permanently connected to each other by way of a ring-shaped claw connecting band (30) situated on the shaft side and produced as a single part out of non-magnetic sheet metal, whereby the claw connecting band is designed with shaped connecting elements (31) that fill the spaces between the claws (19).
Claims6
Electrical machine, in particular an alternator, having a stator situated in a housing and carrying a stator winding, and having a claw-pole rotor system that is supported on a shaft and has two pole rings designed as pole pieces that extend outward to form claws that mutually mesh into each other, and having a field coil enclosed by the claw-pole rotor system, in particular situated on the shaft, characterized in that the claw poles (15, 15′) are permanently connected to each other by way of a ring-shaped claw connecting band (30) situated on the shaft side and produced as a single part out of non-magnetic sheet metal, whereby the claw connecting band is designed with shaped connecting elements (31) that fill the spaces between the claws (19).
Electrical machine according to one of the preceding claims, characterized in that the claw connecting band (30) is welded together with the flanks (18) of the claw poles (15) in the region of the connecting elements (31).
Electrical machine according to one of the preceding claims, characterized in that the claw connecting band (30) comprises bevelled tabs (34) that abut against the claw bases (16) of the pole pieces (13).
Electrical machine according to one of the preceding claims, characterized in that the claw connecting band (30) is welded together with the claw bases (16) in the region of the tabs (34).
Dependencies are inferred from the claim text.