Commutatorless permanent magnet disc-type direct-current motor

• Main Authors: LI YIJUAN, XU YOUWU, ZHANG CHUNFU, YAN QIJIN
• Format: Patent
• Language: English
• Published: 21.01.2015
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The invention discloses a commutatorless permanent magnet disc-type direct-current motor. The commutatorless permanent magnet disc-type direct-current motor comprises a motor shell, an insulation wire spool (1) and permanent magnets (2), wherein the insulation wire spool (1) is installed inside the motor shell, and the permanent magnets (2) are installed on the periphery of the insulation wire spool (1). An inner side conductive groove (3) and an outer side conductive groove (4) are formed in one side of the insulation wire spool (1). Electric brushes (5) are installed inside the inner side conductive groove (3) and the outer side conductive groove (4). An axle hole (6) is formed in the center of the insulation wire spool (1). The electric brushes (5) between the inner side conductive groove (3) and the outer side conductive groove (4) are connected through rotating winding wires (7). Each rotating winding wire (7) makes sliding contact with a fixed winding wire (8) through the corresponding electric brush (5). The direct-current motor is reasonable in structural design, no commutator is needed, the motor is always in the powered-on state when the electric winding wires rotate, the winding wires can rotate continuously and smoothly by 360 degrees, no electric sparks are generated during motor commutation, the output torque or voltage ripples are small, and safety and stability are achieved.