MONITORING AN APPARATUS FOR INDUCTIVE ENERGY TRANSMISSION - APPARATUS AND METHOD

摘要

The invention relates to a monitoring apparatus (10) for at least one electrical apparatus designed for inductive energy transmission, having a sensor device (12) with a coil arrangement comprising at least one coil (14) and an evaluation device (20) for detecting whether at least one measured physical variable differs from at least one predefined normal range of values, wherein the at least one coil (14) of the coil arrangement is wound, designed and/or attached to at least one filter in such a manner that currents and/or voltages induced in the at least one coil (14) of the coil arrangement can be at least partially averaged and/or filtered out. The invention also relates to electrical apparatuses equipped with the monitoring apparatus (10) and to corresponding methods.

主权项

1. A monitoring apparatus (10) for at least one electrical apparatus designed for inductive energy transmission, the monitoring apparatus comprising:
a sensor device (12) with a coil arrangement comprising at least one coil (14, 14a), wherein the coil arrangement including the at least one coil (14, 14a) is configured to be disposed at, on and/or in the electrical apparatus, and the single coil (14, 14a) or at least one of the coils (14, 14a) of the coil arrangement is integrated into at least one electronic circuit (18); and an evaluation device (20), which is designed to perform one or more of the following acts: to detect whether at least one physical variable (Δf1 to Δfn, ΔA1 to ΔAn), which is measured by means of the at least one electronic circuit (18) or appears in the at least one electronic circuit, differs from at least one predefined normal range of values, and, provided that the at least one determined physical variable (Δf1 to Δfn, ΔA1 to ΔAn) differs from the at least one predefined normal range of values, to output at least one control signal (36) to the electrical apparatus, a further electrical apparatus designed for inductive energy transmission, or both, by means of which control signal the electrical apparatus, the further electrical apparatus, or both can be directed into a predefined foreign object protection mode at least for a predefined period of time, to output at least one foreign object information signal (32) to at least one information output electronics (34), by means of which the at least one information output electronics (34) can be actuated to output at least one foreign object warning signal, and wherein, the at least one coil (14, 14a) of the coil arrangement is wound, designed, attached, or a combination of wound, designed, or attached to at least one filter (52) in such a manner that currents (I1, I2), voltages, or both induced in the at least one coil (14, 14a) of the coil arrangement can be at least partially averaged, filtered out, or both averaged and filtered out.