Conductive ring assembly, conductive device and wind turbine

A conductive ring assembly, comprising:

• a sun gear,
• a ring gear, and
• one or more planetary gears,
• wherein the sun gear is located in the ring gear, and the sun gear is arranged coaxially with the ring gear, and the one or more planetary gears are located between the sun gear and the ring gear, and meshed with the sun gear and the ring gear, the planetary gears are electrically connected to both the sun gear and the ring gear, which allows electrical signals to be transmitted between the sun gear and the ring gear via the one or more planetary gears,
• wherein the tooth surfaces of the sun gear, the ring gear and the planetary gears are each provided with two or more conductive bands which are arranged around the gears or the ring gear in a circumferential direction of the gears or the ring gear, and adjacent two conductive bands are insulated from each other, and when the sun gear and the ring gear mesh with the planetary gears, the conductive bands on the planetary gears are connected in one-to-one correspondence to the conductive bands on the sun gear and the conductive bands on the ring gear,
• wherein an isolation band is provided between adjacent two conductive bands of each of the sun gear, the ring gear and the planetary gears to be arranged around the gears or the ring gear in a circumferential direction of the gears or the ring gear, and the isolation band is made of an insulation material, which insulates the adjacent two conductive bands from each other,
• wherein the isolation band of the sun gear and the isolation band of the planetary gears are fitted with each other in a one-to-one correspondence;
• and/or, the isolation band of the ring gear and the isolation band of the planetary gears are fitted with each other in a one-to-one correspondence.