Bearing assembly with rotation sensing device
First Claim
1. A bearing assembly for the hub of a motor vehicle wheel, comprising:
- a bearing unit with at least one rotatable race, a stationary race, and rolling bodies radially interposed between the races;
a rotation sensing device withan impulse ring secured for rotation with the rotatable race by means of a rotatable annular carrier, anda magnetic/electric transducer mounted to the stationary race by means of a stationary annular carrier and operatively facing the impulse ring;
an electromagnetic inductive coupling, includinga stationary coil electrically connectable to a power supply means and carried by the stationary annular carrier, anda rotatable coil electrically connectable to at least one electric or electronic device mounted on the wheel, the rotatable coil being carried by the rotatable annular carrier and being electromagnetically linked to the stationary coil, wherein the rotatable coil is electrically connectable to said wheel-mounted electric or electronic device through electrically conductive means,wherein the assembly is mounted onto an axial tubular portion of a wheel hub having an end portion abutting a radial shoulder of a constant velocity joint, wherein the electrically conductive means pass through a radial passage formed at the interface between the constant velocity joint and the end portion of the hub.
1 Assignment
0 Petitions
Accused Products
Abstract
A bearing unit for a vehicle wheel hub is associated with a rotation sensing device and an electromagnetic inductive coupling. The rotation sensing device comprises an impulse ring (18) secured for rotation with the rotatable race (13) of the bearing unit by means of a rotatable annular carrier (19), and a magnetic/electric transducer (20) mounted to the stationary race (12) of the bearing unit by means of a stationary annular carrier (21) and operatively facing the impulse ring (18). The electromagnetic inductive coupling comprises a stationary coil (24) electrically connectable to a power supply (32) and carried by the stationary annular carrier (21), and a rotatable coil (25) electrically connectable (26) to an electric or electronic device mounted on the wheel. The rotatable coil (25) is carried by the rotatable annular carrier (19) and is electromagnetically linked to the stationary coil (24).
11 Citations
12 Claims
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1. A bearing assembly for the hub of a motor vehicle wheel, comprising:
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a bearing unit with at least one rotatable race, a stationary race, and rolling bodies radially interposed between the races; a rotation sensing device with an impulse ring secured for rotation with the rotatable race by means of a rotatable annular carrier, and a magnetic/electric transducer mounted to the stationary race by means of a stationary annular carrier and operatively facing the impulse ring; an electromagnetic inductive coupling, including a stationary coil electrically connectable to a power supply means and carried by the stationary annular carrier, and a rotatable coil electrically connectable to at least one electric or electronic device mounted on the wheel, the rotatable coil being carried by the rotatable annular carrier and being electromagnetically linked to the stationary coil, wherein the rotatable coil is electrically connectable to said wheel-mounted electric or electronic device through electrically conductive means, wherein the assembly is mounted onto an axial tubular portion of a wheel hub having an end portion abutting a radial shoulder of a constant velocity joint, wherein the electrically conductive means pass through a radial passage formed at the interface between the constant velocity joint and the end portion of the hub. - View Dependent Claims (2)
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3. A bearing assembly for the hub of a motor vehicle wheel, comprising:
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a bearing unit with at least one rotatable race, a stationary race, and rolling bodies radially interposed between the races; a rotation sensing device with an impulse ring secured for rotation with the rotatable race by means of a rotatable annular carrier, and at least one magnetic/electric transducer mounted to the stationary race by means of a stationary annular carrier and operatively facing the impulse ring; an electromagnetic inductive coupling, including a stationary coil electrically connectable to a power supply means and carried by the stationary annular carrier, and a rotatable coil electrically connectable to at least one electric or electronic device mounted on the wheel, the rotatable coil being carried by the rotatable annular carrier and being electromagnetically linked to the stationary coil, wherein the rotatable coil is electrically connectable to said wheel-mounted electric or electronic device through electrically conductive means, wherein the electrically conductive means pass through an axial slot formed at the cylindrical interface between an axial tubular hub portion and a constant velocity joint. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification