Patent ID: 9502849
Filing Date: 2016-11-22
CPC Classification: H01R,H02K,Y10T

Claim Text:
1. A commutator, comprising: a first body and a second body which are separately made of electrically insulating material, the first body being a hollow cylinder with first and second axial ends; a plurality of commutator segments disposed on an outer surface of the first body, each commutator segment having a commutator surface for making slide contact with brushes of a brush motor, the commutator surface being exposed to air and axially extending a majority of the distance between the first and second axial ends of the first body; and a plurality of commutator terminals, each commutator terminal having a contact area for contacting a corresponding one of the commutator segments; wherein the second body has a base and a ring wall extending from the base, and the first end of the first body is received in a space defined by the base and the ring wall, with the contact area of each commutator terminal being in tight contact with the corresponding commutator segment at the radially inner side of the ring wall, the ring wall being parallel to the commutator surface.