INDUCTIVE ROTARY JOINT WITH U-SHAPED FERRITE CORES

摘要

A rotating power transformer comprises a primary magnetic core with a primary winding and a secondary magnetic core with a secondary winding. The magnetic cores preferably comprise a ferrite material and are U-shaped, and have a base connecting two legs. The width of the legs is significantly larger than the height of the base, resulting in a better magnetic coupling and a significantly improved tolerance to mechanical deviations.

主权项

1. A rotating power transformer comprising
a primary magnetic core having at least one primary winding, a secondary magnetic core having at least one secondary winding, wherein the primary magnetic core being in close proximity to the secondary magnetic core separated therefrom by an air gap, wherein the primary magnetic core and the secondary magnetic core are rotatable against each other around a rotation axis, wherein the primary and secondary magnetic cores comprise U-shaped cores with a base connecting two legs, the base having a base height, the two legs having a leg width, wherein the leg width is more than 1.5-times larger than the base height, and wherein at least one of the primary magnetic core and the secondary magnetic core comprises at least one of a ferrite material and an iron powder material.