Rotor, actuator, and method for manufacturing rotor
AssigneeAisin Corporation
InventorsKeita NAKASHIMA, Takemitsu Sumiya
Life of this patent
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Abstract
A rotor of the present disclosure is a rotor of a motor, and the rotor includes: a magnet body having a cylindrical shape; a rotor shaft provided on a radially inner side of the magnet body to be separated from the magnet body; and a coupling member that couples the magnet body and the rotor shaft, wherein the coupling member is a disk-shaped member including: an outer peripheral portion located in the magnet body; and an intermediate portion provided on a radially inner side from the outer peripheral portion.
Claims12
A rotor of a motor, the rotor comprising:
- a magnet body having a cylindrical shape;
- a rotor shaft provided on a radially inner side of the magnet body to be separated from the magnet body;
- and
- a coupling member that couples the magnet body and the rotor shaft,
- wherein the coupling member is a disk-shaped member including:
- an outer peripheral portion located in the magnet body;
- and
- an intermediate portion provided on a radially inner side from the outer peripheral portion.
A method for manufacturing a rotor of a motor, the method comprising:
- a first step of manufacturing a coupling member that couples a magnet body having a cylindrical shape and a rotor shaft;
- and
- a second step of integrally providing the magnet body on the coupling member;
- wherein the first step includes:
- a pressing step of forming a disk-shaped plate member having an opening portion in a central portion of the disk-shaped plate member by press working;
- and
- a burring step of performing burring processing on the opening portion to form a cylindrical wall portion that rises on one side and in which the rotor shaft is inserted.
Dependencies are inferred from the claim text.