Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1985-01-09
1987-01-27
Budd, Mark O.
Electrical generator or motor structure
Dynamoelectric
Rotary
310247, 310268, 310237, H02K 1300
Patent
active
046396292
ABSTRACT:
The present invention relates to a brush-holder for flat-commutator electromechanical transducer.
The brush secured by screws (11) to the flange (2) of the transducer consisting in this case of a motor having a flat rotor (5) comprises a supporting ring (12) and guide sockets (13). The sockets (13) and the brushes (14) have the shape of a circular arc segment. The socket end opposite the end facing the commutator (6) is closed by a cover (16) screwed in the socket (13). The cover (18) is attached to a coil spring (19) secured in turn to the brush (14). Access to the end of a socket (13) closed by the cover (18) can be had by removing a plug (17) of the stator cage (16) of a device coupled to the motor. The shape of the sockets (13) permits on the one hand the replacement or adjustment of the brushes (14) without disassembling the stator cage (16) and on the other hand of preventing the pivotal movement of the brushes within the sockets (13) and the wear of their ends to a "screwdriver" configuration especially when the motor is operated with frequent changes in its direction of rotation, for example when it is used as a servo motor.
REFERENCES:
patent: 3144574 (1964-08-01), Baudot
patent: 3525008 (1970-08-01), Burr
Budd Mark O.
Mavilor Systemes S.A.
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