Method of manufacturing rotor of electric motor and electric motor
AssigneeFanuc Corporation
InventorsTakashi Okamoto, Tsuyoshi Furuya
Life of this patent
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Abstract
A method of manufacturing a rotor of an electric motor, the rotor including a laminated core of multi-layer structure formed from electromagnetic thin plates laminated in an axial direction of a rotational shaft, and a pair of end plates disposed on opposite sides in the axial direction of the laminated core, and the rotor being rotatably disposed in an inside of a stator, the method including: fitting the rotational shaft into an insertion hole formed in a center region of the end plates having elasticity in a direction of plate thickness; positioning the end plates at specified position on the rotational shaft; and abutting either one of the end plates in elastically deformed state to at least one end of the laminated core.
Claims10
A method of manufacturing a rotor of an electric motor, said rotor including a laminated core of multi-layer structure formed from electromagnetic thin plates laminated in an axial direction of a rotational shaft, and a pair of end plates disposed on opposite sides in the axial direction of said laminated core, and said rotor being rotatably disposed in an inside of a stator, said method comprising:
- fitting said rotational shaft into an insertion hole formed in a center region of said end plates having elasticity in a direction of plate thickness of said end plates;
- positioning said end plates at specified position on said rotational shaft;
- and
- abutting either one of said end plates in an elastically deformed state to at least one end of said laminated core.
An electric motor comprising a stator and a rotor of an electric motor disposed in an inside of said stator, said rotor comprising:
- a laminated core of multi-layer structure formed from electromagnetic thin plates laminated in a axial direction of a rotational shaft, and a pair of end plates disposed on opposite sides in an axial direction of said laminated core;
- wherein said end plates have elasticity in a direction of plate thickness of said end plates, and either one of said end plates is abutted to at least one end of said laminated core with elastic force.
Dependencies are inferred from the claim text.