Patent ID: 6853108
Filing Date: 2005-02-08
Classification: H01R,H02K,Y10T

Abstract:
1. A method of manufacturing a rotor for a small-sized motor having a plurality of rotor magnetic poles and a commutator on a rotor shaft, both ends of a wire of each winding of said rotor magnetic poles tying up with commutator legs which are connected to the corresponding commutator piece end of the commutator, respectively, and said both ends of a wire being heated by welding to be connected, the said method comprising the steps of: preparing a copper-based base material; attaching a clad material with a lower melting point and higher electric resistance than that of said base material and a high electric resistance to said base material at least at a portion of the surface part with which the wire of said winding comes into contact for welding; and forming said commutator leg by the base material to which the clad material is attached.