Device for inductively transmitting power
First Claim
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1. A system for inductive power transmission, the system comprising:
- a primary unit having a primary coil;
a secondary unit having a secondary coil;
a metal detector,wherein the primary coil generates a magnetic transmission field in a transmission area between the primary unit and the secondary unit,wherein the metal detector is configured to detect metallic objects in the transmission area,wherein the metal detector comprises;
a transmitter coil; and
a signal coil,wherein the transmitter coil generates a detector field which is superimposed on the magnetic transmission field and wherein the signal coil acquires a resulting superimposition field and not the detector field if a metallic object is disposed in the transmission area.
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Abstract
A system is provided for inductive power transmission. The system includes a primary unit having a primary coil and a secondary unit having a secondary coil. The primary coil generates a magnetic transmission field in a transmission area between the primary unit and the secondary unit. The system includes a metal detector, and the metal detector is suitable for the detection of a metallic object situated in the transmission area.
8 Citations
14 Claims
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1. A system for inductive power transmission, the system comprising:
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a primary unit having a primary coil; a secondary unit having a secondary coil; a metal detector, wherein the primary coil generates a magnetic transmission field in a transmission area between the primary unit and the secondary unit, wherein the metal detector is configured to detect metallic objects in the transmission area, wherein the metal detector comprises; a transmitter coil; and a signal coil, wherein the transmitter coil generates a detector field which is superimposed on the magnetic transmission field and wherein the signal coil acquires a resulting superimposition field and not the detector field if a metallic object is disposed in the transmission area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An arrangement for power transmission, the arrangement comprising:
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a vehicle; a power transmission system, the power system transmission comprising; a primary unit having a primary coil; a secondary unit having a secondary coil; a metal detector, wherein the primary coil generates a magnetic transmission field in a transmission area between the primary unit and the secondary unit, the metal detector is configured to detect metallic objects in the transmission area, the secondary unit is a part of the vehicle and is arranged in an area of an underbody of the vehicle, the primary unit is arranged externally with respect to the vehicle, electric power is inductively transmittable to the vehicle, the metal detector is a part of either the primary unit or the secondary unit, wherein the metal detector comprises; a transmitter coil; and a signal coil, wherein the transmitter coil generates a detector field which is superimposed on the magnetic transmission field and wherein the signal coil acquires a resulting superimposition field and not the detector field if a metallic object is disposed in the transmission area. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification