Encoder system and method of assembling an encoder system
First Claim
1. An encoder system comprising a timing disc and a circuit board with a U-shaped sensor/emitter unit and a plug-in connector, wherein:
- the circuit board with circuit components including the sensor/emitter unit and U-shaped connector is configured as an assembly unit that can be fastened to a flange end of an electric motor by at least one of a mechanical, thermal, and adhesive means of attachment;
the timing disc is configured to be slipped onto a motor shaft at the flange end of the electric motor;
the motor is configured for connection to a power source by means of contact elements;
the circuit board has connections for the U-shaped sensor-emitter unit;
the sensor-emitter unit is operable to receive position signals, embraces an edge portion of the timing disc, and is adjustable in all three spatial directions;
the plug-in connector has connecting leads forming electrically conductive connections to said circuit components;
said flange end of the electric motor faces the timing disc and is equipped with a centering collar which, in a plan view, is approximately circular but has a flattened portion on at least one side, said flattened portion together with an opposed edge of the centering collar presenting an insertion width (W) that is reduced relative to a circle diameter of the centering collar;
the circuit board has a recess which receives the centering collar in a form-fitting way allowing the centering collar to be fixated in a defined position; and
the recess is open towards a side of the circuit board, with a width (L) of the opening corresponding to said reduced insertion width (W) of the centering collar.
1 Assignment
0 Petitions
Accused Products
Abstract
An encoder system with a timing disc includes a preassembled circuit board with a U-shaped sensor/emitter embracing the edge of the timing disc. The timing disc is configured to be slipped onto a motor shaft at the flange end of an electric motor, and the circuit board is designed to be mounted on the flange of the motor by mechanical, thermal, and/or adhesive means of attachment. The motor flange is equipped with a centering collar that has a flattened portion on its otherwise circular circumference. The circuit board has a cutout opening that receives the centering collar in a form-fitting way when the circuit board is slid onto the flange of the motor. By rotating the circuit board 90° about the centering collar, the circuit board is secured in a defined position on the motor flange.
35 Citations
10 Claims
-
1. An encoder system comprising a timing disc and a circuit board with a U-shaped sensor/emitter unit and a plug-in connector, wherein:
-
the circuit board with circuit components including the sensor/emitter unit and U-shaped connector is configured as an assembly unit that can be fastened to a flange end of an electric motor by at least one of a mechanical, thermal, and adhesive means of attachment;
the timing disc is configured to be slipped onto a motor shaft at the flange end of the electric motor;
the motor is configured for connection to a power source by means of contact elements;
the circuit board has connections for the U-shaped sensor-emitter unit;
the sensor-emitter unit is operable to receive position signals, embraces an edge portion of the timing disc, and is adjustable in all three spatial directions;
the plug-in connector has connecting leads forming electrically conductive connections to said circuit components;
said flange end of the electric motor faces the timing disc and is equipped with a centering collar which, in a plan view, is approximately circular but has a flattened portion on at least one side, said flattened portion together with an opposed edge of the centering collar presenting an insertion width (W) that is reduced relative to a circle diameter of the centering collar;
the circuit board has a recess which receives the centering collar in a form-fitting way allowing the centering collar to be fixated in a defined position; and
the recess is open towards a side of the circuit board, with a width (L) of the opening corresponding to said reduced insertion width (W) of the centering collar. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of installing an encoder system on an electric motor, said encoder system comprising a timing disc and a circuit board with a U-shaped sensor/emitter unit and a plug-in connector, wherein:
-
the circuit board with circuit components including the sensor/emitter unit and U-shaped connector is configured as an assembly unit that can be fastened to a flange end of an electric motor by at least one of a mechanical, thermal, and adhesive means of attachment;
the motor is configured for connection to a power source by means of contact elements;
the circuit board has connections for the U-shaped sensor-emitter unit;
the sensor-emitter unit is operable to receive position signals, embraces an edge portion of the timing disc, and is adjustable in all three spatial directions;
the plug-in connector has connecting leads forming electrically conductive connections to said circuit components;
said flange end of the electric motor faces the timing disc and is equipped with a centering collar which, in a plan view, is approximately circular but has a flattened portion on at least one side, said flattened portion together with an opposed edge of the circular centering collar presenting an insertion width (W) that is reduced relative to a circle diameter of the centering collar;
the circuit board has a recess which receives the circular centering collar in a form-fitting way allowing the centering collar to be fixated in a defined position; and
the recess is open towards a side of the circuit board, with a width (L) of the opening corresponding to said reduced insertion width (W) of the centering collar;
the method comprising the steps of;
A. slipping the timing disc onto the motor shaft;
B. sliding the circuit board, which has been pre-assembled with said circuit elements, into a flange plane of the electric motor from a direction where the centering collar presents said reduced insertion width, thereby bringing the circuit board into an adjusting position, and C. rotating the circuit board to secure it in place. - View Dependent Claims (9, 10)
-
Specification