Grounding mechanism for electric motor with encoder

Details Grounding mechanism for electric motor with encoder Grounding mechanism for electric motor with encoder

2006-03-14

2006-03-14

Hyeon, Hae Moon (Department: 2839)

Electrical connectors

Metallic clamp-type connector for storage battery terminal

With reinforcing insert

C439S095000, C439S098000

Reexamination Certificate

active

07011554

ABSTRACT:
An assembly of electric motor with encoder, including an electric motor having a motor housing, and an encoder for detecting the rotation angle of the output shaft of the electric motor. The encoder includes a frame member attached to the motor housing in a conductive manner, a circuit board supported on the frame member and a detection circuit provided in the circuit board. The assembly of electric motor with encoder further includes an output signal cable connected to the circuit board of the encoder and including a signal wire and a shield member, and a grounding mechanism electrically connecting the shield member of the output signal cable to the motor housing for grounding purposes. The grounding mechanism includes a conductor patterned on the circuit board, a first connecting structure mutually connecting the conductor to the shield member, and a second connecting structure mutually connecting the conductor to the frame member. The second connecting structure includes a through-hole plating provided in the circuit board to be connected to the conductor, and a fastening element inserted into a through hole having the through-hole plating and securing the circuit board onto the frame member. When the fastening member is fastened, the through-hole plating comes into conductive contact with the frame member.

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Japan Patent Office, Abstract of JP7255148.
The Patent Office of the People's Republic of China, Notification of the First Office Action, Oct. 14, 2005.

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