Title:
NOISE REDUCTION STRUCTURE OF ON-VEHICLE DC MOTOR AND MOTOR-DRIVEN VALVE DEVICE
Document Type and Number:
Japanese Patent JP2019120218
Kind Code:
A
Abstract:
To provide a noise reduction structure of an on-vehicle DC motor which can improve productivity and can reduce a manufacturing cost, and a motor-driven valve device.SOLUTION: An EGR valve 1 for driving a valve body 14 by a DC motor 21 so as to be openable and closable, and controlling an opening of the valve body 14 to a target opening while detecting the opening of the valve body 14 by an opening sensor 45 comprises: a valve housing 41 in which the valve body 14 and the DC motor 21 are arranged; a cover 42 in which a connector 43 for connecting the EGR valve 1 and the ECU to each other is arranged, and which is attached to the valve housing 41; and coils 50a, 50b having spring functions. The coils 50a, 50b are arranged between motor terminals 21a, 21b arranged at the DC motor 21, and connector terminals 43a, 43b arranged at the connector 43 in series in compressed state.SELECTED DRAWING: Figure 4
Inventors:
MASE MAKOTO
Application Number:
JP2018001666A
Publication Date:
July 22, 2019
Filing Date:
January 10, 2018
Export Citation:
Assignee:
AISAN IND
International Classes:
F02D11/10
Attorney, Agent or Firm:
Cosmos International Patent and Trademark Office