Armature, manufacturing method of armature, and motor
AssigneeAsmo Co., Ltd.
InventorsToshio Yamamoto, Keiichi Uemura, Tomoyuki Kikuta, Masahiko Komoda, Masayuki Kuwano, Hideki Toida
Life of this patent
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Abstract
An armature includes a rotary shaft, a core, and a coupling member. The core is formed by using magnetic metal powder and has a tooth. A wire is wound about the tooth. The coupling member has a ductility that is higher than the ductility of the core. The coupling member is located between the core and the rotary shaft. The rotary shaft is press fitted in the coupling member, and the coupling member is press fitted in the core.
Claims19
An armature comprising:
- a rotary shaft;
- a core formed by using magnetic metal powder, wherein the core has a tooth, and wherein a wire is wound about the tooth;
- and
- a coupling member having a ductility that is higher than the ductility of the core, wherein the coupling member is located between the core and the rotary shaft, and wherein the rotary shaft is press fitted in the coupling member, and the coupling member is press fitted in the core.
A method for manufacturing an armature, the method comprising:
- preparing a rotary shaft;
- forming a core using magnetic metal powder, wherein the core has a tooth to which a wire is wound;
- press fitting a coupling member having a ductility that is higher than the ductility of the core to the core;
- and
- press fitting the rotary shaft to the coupling member, which is press fitted to the core.
A motor having an armature, the armature comprising:
- a rotary shaft;
- a core formed by using magnetic metal powder, wherein the core has a tooth, and wherein a wire is wound about the tooth;
- and
- a coupling member having a ductility that is higher than the ductility of the core, wherein the coupling member is located between the core and the rotary shaft, and wherein the rotary shaft is press fitted to the coupling member, and the coupling member is press fitted to the core.
Dependencies are inferred from the claim text.