Encoder unit and process of assembling same

Details Encoder unit and process of assembling same Encoder unit and process of assembling same

2008-07-01

2008-07-01

Ip, Paul (Department: 2837)

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

C318S652000, C250S231130

Reexamination Certificate

active

11193039

ABSTRACT:
An encoder unit releasably secured to the flange end of a motor with a form-fitting and positive connection comprises an encoder housing with guide grooves for receiving a printed circuit board (PCB), a recess for receiving the motor shaft, and at least one moveable side wall. A timing disc and hub are positioned on the motor shaft within the encoder housing beneath the PCB. The PCB, a sensor unit fixed, and the movable side wall are slid into the guiding grooves to press an abutment against the hub. The pre-assembled encoder housing can be placed onto a base plate at the flange end of the motor. Pressure movement fully insert the PCB into the housing cover so that the sensor unit records the code markings of the timing disc and so that an abutment is removed from a region of contact with the timing disc hub.

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