Title:
ROTOR, ROTARY ELECTRIC MACHINE, AND ROTOR MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2023074853
Kind Code:
A
Abstract:
To provide a rotor capable of reducing oscillation.SOLUTION: A rotor 2 has a shaft 3, a cylindrical magnet 4 arranged to be away from the outside in a radial direction of the shaft, and a cylindrical first sleeve 5 and a second sleeve 6 surrounding the shaft between the shaft and the magnet. The magnet has a first housing part opening to one side in an axis direction and housing the first sleeve, and a second housing part opening to the other side in the axis direction and housing the second sleeve. In a first contact part contacting a first outer peripheral surface of the first sleeve and a first inner peripheral surface of the first housing part each other, at least one of the first outer peripheral surface and the inner peripheral surface has an annular first tapered surface whose diameter becomes smaller as forwarding to the other side of the axial direction. In a second contact part contacting a second outer peripheral surface of the second sleeve and a second inner peripheral surface of the second housing part each other, at least one of the second outer peripheral surface and the second inner peripheral surface has an annular second tapered surface whose diameter becomes smaller as forwarding to the one side of the axial direction.SELECTED DRAWING: Figure 2
Inventors:
MOMOSE YOSUKE
Application Number:
JP2021188007A
Publication Date:
May 30, 2023
Filing Date:
November 18, 2021
Export Citation:
Assignee:
NIDEC PREC CORP
International Classes:
H02K1/2733; H02K15/03; H02K37/14
Attorney, Agent or Firm:
Shu Oikawa
Yuki Narita
Masahisa Matsumoto
Ancient city Satoshi
Yuki Narita
Masahisa Matsumoto
Ancient city Satoshi
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