SENSOR ARRANGEMENT AND ROLLING BEARING HAVING SUCH A SENSOR ARRANGEMENT

摘要

The invention relates to a sensor arrangement on a rotary bearing which has a stationary bearing part and a rotatable bearing part. A primary coil is arranged on the stationary bearing part and is connected to a supply unit in a wired manner. A sensor circuit and a secondary coil supplying said circuit with electrical energy are fitted to the rotatable bearing part. According to the invention, the primary coil and the secondary coil are part of an energy transmission unit which is constructed according to the Qi standard. At least the operating energy for the sensor circuit, preferably also the data for communication between the sensor circuit and the supply unit, are transmitted via the inductive coupling between the primary coil and the secondary coil.

主权项

1. A sensor arrangement comprising, a stationary part on which a primary coil is arranged that is connected with wires to a supply unit, a rotating part on which a sensor circuit and a secondary coil supplying said sensor circuit with electrical energy are mounted, the primary coil surrounds the rotating part with a ring-shape, the secondary coil is arranged concentrically within the primary coil, and the primary and secondary coils are part of an energy transmission unit that operates according to a Qi standard, and at least an operating energy for the sensor circuit is transmitted via an inductive coupling between the primary and secondary coils.