Title:
COMMUTATOR, ELECTRIC MOTOR, AND COMMUTATOR MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2023015425
Kind Code:
A
Abstract:
To provide a commutator, etc. capable of inhibiting a commutator piece from floating when the commutator is rotating, while inhibiting occurrence of another problem.SOLUTION: A commutator 14 includes a resin formed body 20, and a plurality of commutator pieces 30 fixed to the resin formed body 20. Each of the commutator pieces 30 includes a contact surface that comes into contact with an outer peripheral surface of the resin formed body 20, and a facing surface that is exposed from the resin formed body 20 and faces an adjacent commutator piece among the plurality of commutator pieces 30. The maximum depth of a fine recess in the contact surface is greater than the maximum depth of a fine recess in the facing surface.SELECTED DRAWING: Figure 4
Inventors:
YORINO TOMOKO
NAKANO KEISAKU
TOYA KAZUO
YOSHIOKA YUKI
FUJITA KATSUTOSHI
NAKANO KEISAKU
TOYA KAZUO
YOSHIOKA YUKI
FUJITA KATSUTOSHI
Application Number:
JP2020007003A
Publication Date:
February 01, 2023
Filing Date:
January 20, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H02K13/00; H01R39/04; H02K15/02
Attorney, Agent or Firm:
Hiroi Arai
Teraya Eisaku
Shinichi Michizaka
Teraya Eisaku
Shinichi Michizaka