Power generation wheel hub

Abstract

The invention relates to a power generation wheel hub which comprises a mandrel, a winding frame, two magnet yoke discs, a plurality of magnet yoke claws, a shell and a magnetic unit, wherein the winding frame has magnetic conductivity and comprises two side walls, a cylinder wall connected between the two side walls, a winding groove arranged between the side walls and the cylinder wall, and a coil wound on the winding groove; each magnet yoke disc comprises a plurality of convex blocks extending along the radial direction and a plurality of pole bolt slots formed among the convex blocks; themagnet yoke discs are respectively connected with the side walls, and the pole bolt slots of the magnet yoke discs are staggered with each other; the magnet yoke claws are respectively inserted intothe pole bolt slots and respectively comprise an axial section extending to the outer side of the winding groove; and the magnetic unit is arranged on the circumferential surface inside the shell andis provided with a plurality of pieces of magnets corresponding to the magnet yoke claws.

Description

technical field [0001] The invention relates to a wheel hub for bicycles, in particular to a generator hub. Background technique [0002] U.S. Patent No. 7002880 and Chinese Taiwan Patent Application No. 92107400 and No. 94215996 disclose a generator hub, a bobbin used is used to provide a coil winding, and to provide the insertion of a plurality of yoke claws Positioning is used so that there are multiple slots distributed around the periphery of the bobbin. When manufacturing, the first disadvantage is that the groove-like structure around the bobbin is adjacent to the winding area, because it is easy to hook the thread. Therefore, it will hinder the winding work. The second disadvantage is that the winding frame is usually made of plastic material, which is easily deformed after winding and hinders the positioning of the yoke claws. The third disadvantage is that the slot on the winding frame determines the As for the number of poles of the power generation hub, since th...

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Problems solved by technology

[0002] U.S. Patent No. 7002880 and Chinese Taiwan Patent Application No. 92107400 and No. 94215996 disclose a generator hub, a bobbin used is used to provide a coil winding, and to provide the insertion of a plurality of yoke claws Positioning is used so that there are multiple slots distributed around the periphery of the bobbin. When manufacturing, the first disadvantage is that the groove-like structure around the bobbin is adjacent to the winding area, because it is easy to hook the thread. Therefore, it will hinder the winding work. The second disadvantage is that the winding frame is usually made of plastic material, which is easily deformed after winding and hinders the positioning of the yoke claws. The third disadvantage is that the slot on the winding frame determines the The number of poles of the power generation hub, because the slots have been fixed and formed on the winding frame, so the number of poles cannot be adjusted to meet different power generation requirements, and the mold must be re-manufactured, thus increasing the cost

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