| 摘要 |
A magnetic force based automatic power generation device includes a ring body, which has an inner circumference along which spaced permanent magnets are arranged and an outer circumference along which spaced electric magnets are arranged. A driving element is coupled to a top of the ring body. A speed reduction device is coupled to a bottom of the ring body. The speed reduction device is coupled to a power generation element. By starting the ring body by means of the electric magnets and the permanent magnets, the ring body is allowed to be continuously driven by alternating magnetic attractive and repulsive forces induced between magnetic poles of the permanent magnets and the electric magnets and a driving force generated by the driving element for fast rotation, which in turn drives the speed reduction device and the power generation element, so that the power generation device is caused to generate electricity.
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