公开(公告)号：US4677328A

公开(公告)日：1987-06-30

申请号：US794904

申请日：1985-11-04

申请人： Kenkichi Kumakura

发明人： Kenkichi Kumakura

IPC分类号： B60Q1/02 ,  B62J6/10 ,  B62J6/12 ,  H02K7/18 ,  H02K21/22 ,  H02K7/00

CPC分类号： H02K21/227 ,  B62J6/10 ,  B62J6/12 ,  H02K7/1846 ,  H02K2201/12 ,  Y10S174/19

摘要： A generator has a rotor attached to one of a pair of spoke suspending hub flanges rotatably mounted on an axle of a bicycle and a stator fixedly mounted on the axle. The generator includes a hub drum having a disc portion and a rim portion, the disc portion being concentrically fixed on an outer surface of the one hub flange and formed at its central portion with a through hole through which the axle is rotatably inserted, the rim portion being integrally formed on an outer circumferential edge of the disc portion so as to project in the direction of an outer surface of the disc portion. An annular magnet assembly constituting the rotor is attached on an inner circumferential surface of the rim portion. A stationary drum constituted by a central portion fixed to the axle and a support rim portion integrally formed on a circumferential edge of the central portion supports a coil assembly constituting the stator such that an outer circumferential edge of the coil assembly is in opposition to an inner circumferential surface of the annular magnet assembly with a slight gap therebetween. Owing to this arrangement, the generator can be mounted on a bicycle without necessitating modification of a ready-made hub flange.

摘要翻译： 发电机具有转子，该转子附接到可旋转地安装在自行车的轴上的一对轮辐悬挂轮毂凸缘中的一个和固定地安装在轴上的定子。 发电机包括具有盘部分和轮缘部分的轮毂鼓，盘部分同心地固定在一个轮毂凸缘的外表面上，并在其中心部分形成有一个通孔，轴通过该通孔可旋转地插入，轮圈 所述部分一体地形成在所述盘部的外周缘上，以沿所述盘部的外表面的方向突出。 构成转子的环形磁体组件安装在轮辋部分的内周面上。 由固定在轴上的中心部分和一体地形成在中心部分的圆周边缘上的支撑边缘部分构成的固定鼓支撑构成定子的线圈组件，使得线圈组件的外圆周边缘与内部 环形磁体组件的圆周表面之间具有微小的间隙。 由于这种布置，发电机可以安装在自行车上，而不需要修改现成的轮毂凸缘。