公开(公告)号：US06490780B1

公开(公告)日：2002-12-10

申请号：US09831158

申请日：2001-05-07

申请人： Chul Kim ,  Yong-woon Han ,  Seong-deog Jang ,  Han-jun Sung

发明人： Chul Kim ,  Yong-woon Han ,  Seong-deog Jang ,  Han-jun Sung

IPC分类号： H01R4310

CPC分类号： H01R43/06 ,  Y10T29/49011

摘要： A method for making a commutator comprising steps of arranging at least one pair of commutator members to be spaced apart from each other, and molding a product by injecting an insulating resin; shaping the product to the product having a real circular sectional cross section; heating the product to a predetermined temperature; cutting protruding resin portions between the commutator members, to the align outer circumference of the commutator body with the outer surfaces of the commutator members. The predetermined temperature is that which rises when the commutator is rotated, and accordingly the predetermined temperature ranges from sixty to eighty degrees Centigrade (60° C.-80° C.). The finished commutator has grooves on the commutator body between the commutator members. The grooves undergo thermal expansion when the commutator is rotated and the temperature rises to a predetermined degree, so that the commutator has a real circular sectional cross section. Accordingly, the contact between the commutator and the input and output brushes is properly performed, and no noise occurs.

摘要翻译： 一种制造换向器的方法，包括以下步骤：将至少一对换向器构件彼此间隔开，并通过注入绝缘树脂来模制产品; 将产品成型为具有实际圆形横截面的产品; 将产品加热至预定温度; 将换向器构件之间的突出树脂部分切割到换向器本体的对准外周与换向器构件的外表面。 预定温度是当换向器旋转时升高的温度，因此预定温度范围为六十到八十摄氏度（60℃-80℃）。 完成的换向器在换向器构件之间的换向器主体上具有凹槽。 当换向器旋转并且温度升高到预定的程度时，槽经历热膨胀，使得换向器具有实际的圆形截面。 因此，可以适当地进行换向器与输入输出电刷之间的接触，不发生噪声。