Title:
METHOD FOR MANUFACTURING ROTOR FOR ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/162056
Kind Code:
A1
Abstract:
Disclosed is a method for manufacturing a rotor for a rotating electric machine, said method comprising: a step of preparing a rotor core and a hollow rotor shaft; a hardness increasing step of more increasing the hardness of one of the radial direction inner side surface and radial direction outer side surface of a predetermined region that is a part of the rotor shaft than the hardness of the other thereof; a placement step of placing the rotor core and the rotor shaft in a manufacturing device and forming a state in which the rotor shaft is positioned on the inner side of the rotor core in the radial direction in the manufacturing device; a sealing step of sealing the hollow portion of the rotor shaft with respect to the outside by plastically deforming the end portion of rotor shaft in the axial direction from the other surface side by the manufacturing device after the hardness increasing step and after the placement step; and an integration step of fastening the rotor shaft and the rotor core to each other by increasing the internal pressure of the hollow portion of the rotor shaft while supporting the rotor shaft and the rotor core by the manufacturing device after the sealing step.
Inventors:
ADACHI TAKEHIKO (JP)
KAWASHIMA TAKAAKI (JP)
MIYOSHI KOKI (JP)
MAKIO SHIMPEI (JP)
SUGITA HIROAKI (JP)
SAITO MARIKO (JP)
KAWASHIMA TAKAAKI (JP)
MIYOSHI KOKI (JP)
MAKIO SHIMPEI (JP)
SUGITA HIROAKI (JP)
SAITO MARIKO (JP)
Application Number:
PCT/JP2022/007456
Publication Date:
August 31, 2023
Filing Date:
February 24, 2022
Export Citation:
Assignee:
AISIN CORP (JP)
International Classes:
H02K15/02; H02K1/28
Foreign References:
| JP2021087268A | 2021-06-03 | |||
| JP2021083189A | 2021-05-27 | |||
| JP2013158802A | 2013-08-19 | |||
| JP2021027735A | 2021-02-22 | |||
| US20100102649A1 | 2010-04-29 |
Attorney, Agent or Firm:
SAKAMOTO & PARTNERS (JP)
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