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AssigneeJohnson Electric International AG
InventorsJing Chao Zheng, Chi Man Law, Xiu Xian Wang
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The invention relates to a commutator, comprising an insulating base and a plurality of commutator segments arranged on the insulating base, wherein each commutator segment comprises a metal layer, a transition layer and a graphite layer arranged on the base in sequence. The transition layer contains a material identical to that of the graphite layer and a material identical to that of the metal layer. The invention further relates to a motor comprising the commutator and a method for manufacturing the commutator. As the transition layer contains the material identical to that of the graphite layer and the metal layer, the problem that the graphite layer and the metal layer are cracked during high temperature sintering is resolved. The service life of the commutator is prolonged. The method for manufacturing the commutator reduces chemical contamination and production cost caused by electroplating and brazing used in a traditional technology.
A commutator, comprising an insulating base and a plurality of commutator segments arranged on the insulating base, wherein each of the commutator segment comprises a metal layer, a transition layer and a graphite layer all arranged in sequence, the transition layer containing a material identical to that of the graphite layer and a material identical to that of the metal layer.
A motor, comprising a housing, and a rotor and an electric brush installed in the housing, further comprising the commutator for being in sliding contact with the electric brush, wherein the commutator comprises:
A method of manufacturing a commutator, comprising the following steps of:
Dependencies are inferred from the claim text.