Magnetic shield
First Claim
1. An ICPT system including a transmitting coil and a receiving coil wherein at least one coil is at least partly shielded by a magnetic shield formed of a plurality of elongate insulated conductors wherein the shield has a surface which in use is exposed to an incident magnetic field and wherein the elongate insulated conductors are arranged to distribute eddy currents from said exposure along a path length that is long with respect to the size of the shield.
3 Assignments
0 Petitions
Accused Products
Abstract
A magnetic shield for shielding adjacent coils of an ICPT system. One or more conductors are configured to distribute induced eddy currents from the surface of the shield to below the surface and thus reduce heating due to eddy currents. The magnetic shield may be employed to transfer power over rotary couplings, such as the shaft of a wind turbine.
12 Citations
14 Claims
- 1. An ICPT system including a transmitting coil and a receiving coil wherein at least one coil is at least partly shielded by a magnetic shield formed of a plurality of elongate insulated conductors wherein the shield has a surface which in use is exposed to an incident magnetic field and wherein the elongate insulated conductors are arranged to distribute eddy currents from said exposure along a path length that is long with respect to the size of the shield.
Specification