Electric motor

Details Electric motor Electric motor

2006-01-24

2006-01-24

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S089000, C310S164000, C310S06700R

Reexamination Certificate

active

06989620

ABSTRACT:
The invention relates to an electric motor, in particular for high speed operation, comprising a motor housing (4); inside the housing (4), a stator (2) having a core (8) and windings (9) toroidally wound on the core (8); and a rotor (1) inside the stator (2). The motor comprises an inductance controlling ring (3) in soft-magnetic material around the stator core (8), increasing for each phase the leakage inductance and forming for each phase an integrated filter inducatnce (L1, L2, L3) outside the core (8) of the stator (2) but still inside the motor housing (4).

REFERENCES:
patent: 4373148 (1983-02-01), Gutz
patent: 6570275 (2003-05-01), Kim et al.

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