Title:
ROTOR, MOTOR EQUIPPED WITH SAME, AND ROTOR MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/034218
Kind Code:
A1
Abstract:
This rotor comprises: a columnar rotor core having a plurality of core sheets and a magnet insertion hole; and a magnet inserted into the magnet insertion hole. The plurality of core sheets have first core sheets and second core sheets that are laminated adjacent to the first core sheets in a magnet insertion direction and have an insertion portion constituting part of the magnet insertion hole. The first core sheets constitute part of the inner surface of the magnet insertion hole and have a projection portion that projects toward the inside of the insertion portion when viewing the rotor from the axial direction and makes contact with the magnet. The rotor has: a housing portion that is positioned, in the first core sheets or the second core sheets, in a direction opposite to the projection direction of the projection portion with respect to the projection portion when viewing the rotor from the axial direction; and a restriction member that is housed in the housing portion at a position in the opposite direction to the projection portion and restricts the displacement of the projection portion in the opposite direction.
Inventors:
TANAKA YOSUKE (JP)
HONDA TAKESHI (JP)
MUTO HIROFUMI (JP)
DANJO YUYA (JP)
TSUJI HIDEKI (JP)
HONDA TAKESHI (JP)
MUTO HIROFUMI (JP)
DANJO YUYA (JP)
TSUJI HIDEKI (JP)
Application Number:
PCT/JP2023/019019
Publication Date:
February 15, 2024
Filing Date:
May 22, 2023
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K1/276
Foreign References:
| JP2021164174A | 2021-10-11 | |||
| JP2000184638A | 2000-06-30 |
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