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Patent Searching and Data


Title:
DC ELECTRIC MOTOR
Document Type and Number:
Japanese Patent JPH06351207
Kind Code:
A
Abstract:

PURPOSE: To obtain DC electric motor in which the gap between an N-pole and an S-pole made small, whose magnetic flux can be obtained with good efficiency, which can obtain a large turning force because a conductor in any position is at right angles to the magnetic flux and which does not require a commutator.

CONSTITUTION: A cylindrical magnet 1 is installed in the center and a drum- shaped magnet 2 is installed so as to surround it in such a way that N-poles 3 and S-poles 4 for the cylindrical magnet 1 are arranged alternately. Then, a DC electric motor is constituted in such a way that a drum-shaped rotor 5 which is formed of a conductor is inserted between the cylindrical magnet 1 and the drum-shaped magnet 2. Positive-pole brushes 6 are in contact with both ends of the rotor and a negative-pole brush 7 is in contact with its central part.


Inventors:
Yamashita, Hiroshi
Application Number:
JP1993000179737
Publication Date:
December 22, 1994
Filing Date:
June 10, 1993
Export Citation:
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Assignee:
YAMASHITA HIROSHI
International Classes:
H02K3/04; H02K23/04; H02K23/58; (IPC1-7): H02K23/04; H02K3/04; H02K23/58