Instrumented antifriction bearing and electrical motor equipped therewith
First Claim
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1. An instrumented antifriction bearing device comprising:
- a rotating portion;
a nonrotating portion; and
an assembly configured to detect rotation parameters, wherein the assembly comprises;
an encoder;
a sensor, wherein the sensor is integrated with the nonrotating portion, and wherein the sensor comprises;
a sensor unit;
at least one reception microcoil and at least one transmission microcoil, each microcoil being a substantially flat winding,wherein said microcoils are positioned on a support of a circuit that is coupled to the sensor unit of the nonrotating portion, and wherein said microcoils are configured to be positioned axially opposite the encoder.
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Abstract
An instrumented ball-bearing includes a rotating part, a non-rotating part, and an assembly for detecting rotation parameters. The assembly for detecting rotation parameters includes an encoder and a sensor. The sensor is integrated with the non-rotating part. The sensor includes a sensor unit and at least a microcoil. The microcoil has a substantially planar winding. The microcoil is positioned in the sensor unit of the non-rotating part such that the microcoil is positioned axially opposite the encoder.
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Citations
18 Claims
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1. An instrumented antifriction bearing device comprising:
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a rotating portion; a nonrotating portion; and an assembly configured to detect rotation parameters, wherein the assembly comprises; an encoder; a sensor, wherein the sensor is integrated with the nonrotating portion, and wherein the sensor comprises; a sensor unit; at least one reception microcoil and at least one transmission microcoil, each microcoil being a substantially flat winding, wherein said microcoils are positioned on a support of a circuit that is coupled to the sensor unit of the nonrotating portion, and wherein said microcoils are configured to be positioned axially opposite the encoder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An electric motor comprising:
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a rotor; a stator; at least one antifriction bearing, wherein an antifriction bearing is configured to support the rotor; and a sensor assembly comprising; an encoder; and a sensor, integrated with the stator, wherein the sensor comprises; at least one reception microcoil and at least one transmission microcoil, wherein each microcoil comprises an essentially flat winding, and wherein said microcoils are positioned on a support of a circuit coupled to the sensor such that said microcoils are positionable axially opposite the encoder.
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15. An instrumented antifriction bearing device comprising:
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a rotating portion; a nonrotating portion; and an assembly configured to detect rotation parameters, wherein the assembly comprises; an encoder; a sensor, wherein the sensor is integrated with the nonrotating portion, and wherein the sensor comprises; at least one transmission coil; at least one reception coil; and a data processing circuit;
wherein a transmission coil, a reception coil, anda date processing circuit are positioned on a support; wherein a reception coil is a substantially flat microcoil winding and said reception coil is configured to be positioned axially opposite the encoder. - View Dependent Claims (16, 17, 18)
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Specification