Bearing assembly with integrated generator
First Claim
1. A spherical roller bearing comprising:
- at least one inner ring;
an outer ring;
a first roller set and a second roller set disposed between the at least one inner ring and the outer ring;
a guide element for guiding the rollers of the first set of rollers, the guide element comprising a bearing cage or a floating guide ring,a generator for harvesting electrical energy from rotation of the inner ring or the outer ring, the generator being arranged between the first roller set and the second roller set and including a magnetic rotor with alternating polarities in a circumferential direction and a stator having at least one stator coil,wherein,the magnetic rotor is mounted to the guide element,the stator comprises an annular band mounted to a common outer raceway of the outer ring, radially opposite from the magnetic rotor, andthe at least one stator coil is formed by a flat conductor provided on a flexible printed circuit board.
1 Assignment
0 Petitions
Accused Products
Abstract
A spherical roller bearing having an inner ring, an outer ring, first and second roller sets disposed therebetween, and a guide element for guiding the rollers of at least one roller set. The guide element is rotational about a bearing axis of rotation during bearing operation. The bearing further includes a generator, arranged between the first and second roller sets, which includes a magnetic rotor with alternating polarities in circumferential direction and a stator having at least one stator coil. The magnetic rotor is mounted to the guide element, while the stator is mounted to a common outer raceway of the outer ring, radially opposite from the magnetic rotor. In accordance with the invention, the stator has the form of an annular band. The at least one stator coil is formed by a flat conductor provided on a flexible printed circuit board.
33 Citations
15 Claims
-
1. A spherical roller bearing comprising:
-
at least one inner ring; an outer ring; a first roller set and a second roller set disposed between the at least one inner ring and the outer ring; a guide element for guiding the rollers of the first set of rollers, the guide element comprising a bearing cage or a floating guide ring, a generator for harvesting electrical energy from rotation of the inner ring or the outer ring, the generator being arranged between the first roller set and the second roller set and including a magnetic rotor with alternating polarities in a circumferential direction and a stator having at least one stator coil, wherein, the magnetic rotor is mounted to the guide element, the stator comprises an annular band mounted to a common outer raceway of the outer ring, radially opposite from the magnetic rotor, and the at least one stator coil is formed by a flat conductor provided on a flexible printed circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A spherical roller bearing comprising:
-
at least one inner ring; an outer ring; a first roller set and a second roller set disposed between the at least one inner ring and the outer ring; a guide element for guiding the rollers of the first set of rollers, the guide element comprising a bearing cage or a floating guide ring, a generator for harvesting electrical energy from rotation of the inner ring or the outer ring, the generator being arranged between the first roller set and the second roller set and including a magnetic rotor with alternating polarities in a circumferential direction and a stator having at least one stator coil, wherein, the magnetic rotor is mounted to the guide element, the stator comprises an annular band mounted to a common outer raceway of the outer ring, radially opposite from the magnetic rotor, the at least one stator coil is formed by a flat conductor provided on a flexible printed circuit board, and the guide element is the bearing cage.
-
-
9. A spherical roller bearing comprising:
-
at least one inner ring; an outer ring; a first roller set and a second roller set disposed between the at least one inner ring and the outer ring; a bearing cage configured to guide the first roller set; a floating guide ring configured to guide the first roller set; and a generator for harvesting electrical energy from rotation of the inner ring or the outer ring, the generator being arranged between the first roller set and the second roller set and including a magnetic rotor with alternating polarities in a circumferential direction and a stator having at least one stator coil, wherein, the magnetic rotor is mounted on the bearing cage or on the floating guide ring, the stator comprises an annular band mounted to a common outer raceway of the outer ring, radially opposite from the magnetic rotor, and the at least one stator coil is formed by a flat conductor provided on a flexible printed circuit board. - View Dependent Claims (10, 11, 12, 13, 14, 15)
-
Specification