Title:
MOTOR AND MOTOR MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2020092477
Kind Code:
A
Abstract:
To provide a motor in which adhesion of a grease to a circuit board can be inhibited.SOLUTION: A gear housing 31 houses a worm 42 and a worm wheel 43. Rotation of the worm wheel 43 is transmitted to an output shaft 44. An opening portion 33c of the gear housing 31 is closed with an outer cover 61. A circuit board 95 is fixed to the inner side of the outer cover 61. An inner cover 101 is disposed at a position to sandwich the circuit board 95 between the outer cover 61 and the inner cover 101, and overlaps with the entire circuit board 95 in an axis direction D1 of the output shaft 44. Contact brushes 91 and 92 are in sliding contact with a contact plate 51 that rotates integrally with the worm wheel 43, and are switched, in accordance with rotation of the contact plate 51, between a conduction state and a non-conduction state to the contact plate 51. The contact brushes 91 and 92 at least partially overlap with the inner cover 101 in the axis direction D1 between the worm wheel 43 and the inner cover 101.SELECTED DRAWING: Figure 3
Inventors:
YOSHIMOTO TAKAO
Application Number:
JP2018226499A
Publication Date:
June 11, 2020
Filing Date:
December 03, 2018
Export Citation:
Assignee:
DENSO CORP
International Classes:
H02K5/10; B60S1/08; F16H1/16; H02K5/22; H02K7/116; H02K11/33; H02K15/14
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda