Direct current brushless motor

摘要

A motor includes a frame, a shaft rotatably mounted onto the frame, and at least one disc mounted onto the shaft. At least one permanent magnet is mounted on the disc, and at least one electromagnet and at least one coil are mounted to the frame in rotational magnetic proximity to the permanent magnet. A battery is connectable to the electromagnet and the coil for energizing the electromagnet and for receiving electrical current from the coil for charging the battery. A relay switch controls the transmission of electrical power from the battery to the electromagnet. A sensor generates a signal to the relay switch to activate electrical power to the electromagnet upon sensing that the permanent magnet is positioned with respect to the electromagnet such that a magnetic force generated by the electromagnet would be effective for inducing movement of the permanent magnet and consequent rotation of the disc.

主权项

1. A motor comprising:
a frame; a shaft rotatably mounted onto the frame; at least one disc mounted onto the shaft; at least one permanent magnet mounted on the at least one disc off-center from the at least one disc; at least one electromagnet mounted to the frame in rotational magnetic proximity to the at least one permanent magnet, the at least one electromagnet and the at least one permanent magnet being substantially radially equidistant from the shaft; at least one coil mounted to the frame in rotational magnetic proximity to the at least one permanent magnet, the at least one coil and the at least one permanent magnet being substantially radially equidistant from the shaft so that when the at least one disc is rotated, the at least one permanent magnet moves relative to the at least one coil with the result that the at least one coil generates alternating current; a battery connectable to the at least one electromagnet and the at least one coil for energizing the at least one electromagnet and for receiving alternating current from the at least one coil for charging the battery; at least one relay switch coupled between the battery and the at least one electromagnet for controlling the transmission of electrical power between the battery and the at least one electromagnet; and at least one sensor coupled to the at least one relay switch for generating a signal to the at least one relay switch to activate electrical power to the at least one electromagnet upon sensing that the at least one permanent magnet is positioned with respect to the at least one electromagnet such that a magnetic force generated by the electromagnet with respect to the at least one permanent magnet would be effective for inducing movement of the permanent magnet and consequent rotation of the at least one disc.