Electrical machine with magnetic brake directly on the rotor

Details Electrical machine with magnetic brake directly on the rotor Electrical machine with magnetic brake directly on the rotor

2011-05-17

2011-05-17

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S07500D, C310S076000, C310S078000, C310S093000

Reexamination Certificate

active

07944102

ABSTRACT:
An electrical machine includes a stator having circumferentially arranged winding heads, with a winding head space being defined radially beneath the winding heads. Interacting with the stator is a rotor which has a rotatable laminated core. A magnetic brake is received in the winding head space and includes a magnet module having at least one permanent magnet which is axially resiliently fixed and constraint against rotation and which is magnetized in an axial direction, and an electromagnet which is arranged axially adjacent to the permanent magnet and securely fixed thereto. The electromagnet produces a magnetic field with a main direction oriented in an axial direction. Interacting with the at least one permanent magnet and the electromagnet is a ring-shaped armature which is secured directly and rigidly to the rotor so as to establish a fixed rotative engagement between the armature and the rotor.

REFERENCES:
patent: 2489365 (1949-11-01), Broussouse
patent: 4643282 (1987-02-01), Edl
patent: 0005212 (1979-11-01), None
patent: 1 564 868 (2005-08-01), None
patent: 1564868 (2005-08-01), None
patent: 08266009 (1996-10-01), None
patent: 9 028056 (1997-01-01), None
patent: 2005 080329 (2005-03-01), None
Machine Translation EP1564868 A1 (2005).
Machine Translation JP08266009 (1996).
Machine Translation EP0005212 (1979).

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