Title:
JUNCTION STRUCTURE FOR SHAFT AND MAGNET, MOTOR AND LEAD SCREW DEVICE
Document Type and Number:
Japanese Patent JP2019017140
Kind Code:
A
Abstract:
To improve accuracy in assembly of a magnet and a shaft.SOLUTION: The present invention relates to a junction structure for a magnet 10 and a shaft 20 that is inserted through the magnet 10. In one member of the shaft 20 and the magnet 10, multiple pressure-welding parts 11a1 that protrude in a radial direction and are pressure-welded to the other member are provided while being spaced in a circumferential direction. Between two pressure-welding parts 11a1 that are adjacent in the circumferential direction, a separation portion S in which an outer peripheral surface of the shaft 20 and an inner peripheral surface of the magnet 10 are separated in the radial direction is secured, and the separation portion S is filled with an adhesive 30.SELECTED DRAWING: Figure 2
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Inventors:
MOMOSE YOSUKE
Application Number:
JP2017130932A
Publication Date:
January 31, 2019
Filing Date:
July 04, 2017
Export Citation:
Assignee:
NIDEC COPAL CORP
International Classes:
H02K37/14
Attorney, Agent or Firm:
Eichi International Patent Office