Claw pole comprising a centering point
AssigneeRobert Bosch GmbH
InventorsRolf Eckert, Horst Fees
Life of this patent
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Abstract
An electrical machine (10), especially a three-phase generator for vehicles, that comprises a stator (16) and a rotor (20). The rotor (20) comprises a first and a second claw pole (22, 23) from which claw pole fingers (24) respectively extend in the axial direction from claw pole roots (60). A centering point (74) for a tool is located on a rear radius (72) of the claw pole roots (60).
Claims6
A method for producing an electrical machine (10) comprising a stator (16) which is of annular design and a rotor (20), wherein the rotor (20), as a result of a forming process, includes a first claw pole (22) and a second claw pole (23) from which claw pole fingers (24, 25) that originate at claw pole roots (60) respectively extend in an axial direction, wherein a claw pole root (60) has a rear radius (72), the method comprising providing a centering point (74) for a tool on a rear radius (72) of one of the claw pole roots (60) at a location, subsequently centering the tool in the centering point (74), and using the tool to produce a balancing hole (76) at this location.
Dependencies are inferred from the claim text.