Patent ID: 8884481

Claim:
A stator for a bicycle generator hub, the stator comprising: a coil bobbin including a tubular section having a first axial end, a second axial end, an internal circumferential surface disposed between the first and second axial ends and an external circumferential surface disposed between the first and second axial ends; a plurality of first yokes radially arranged on the first axial end of the coil bobbin, each of the first yokes including a first magnetic pole section extending along an axial direction of the coil bobbin and facing the external circumferential surface of the coil bobbin, a first insertion section extending along the axial direction of the coil bobbin and facing the internal circumferential surface of the coil bobbin, and a first connecting section extending radial direction of the coil bobbin and connecting the first magnetic pole section and the first insertion section together; and a plurality of second yokes radially arranged on the second axial end of the coil bobbin, each of the second yokes including a second magnetic pole section extending along an axial direction of the coil bobbin and facing the external circumferential surface of the coil bobbin, a second insertion section extending along the axial direction of the coil bobbin and facing the internal circumferential surface of the coil bobbin, and a second connecting section extending radial direction of the coil bobbin and connecting the second magnetic pole section and the second insertion section together; each of the first insertion sections having a first end portion, each of the second insertion sections having a second end portion, each of the first end portions of the first insertion sections contacting two corresponding ones of the second end portions of the second insertion sections.