▎ 摘　　要

NOVELTY - The device has a transmitting circuit (12) provided with a first coil (N1). An emitting module (13) is provided with a laser (132), a focusing lens (134) and a first loop including an emitting end electrode (131) and a second coil (N2). An emitting end electrode (131) is formed with a through hole. A radiation beam emitted by the laser passes through the focusing lens. The first coil and the second coil are coupled, where a number of turns of the first coil is less than the number of turns of the second coil. A receiving circuit (22) is provided with a third coil (N3). A receiving module (23) is provided with a second loop with a receiving end electrode (231) and a fourth coil (N4). The third coil and the fourth coil are coupled, where the number of turns of the third coil is less than the number of turns of the fourth coil. The emitting end electrode and the receiving end electrode are made of titanium or graphene material. USE - Long-distance wireless power transmission device for realizing space transmission of electric energy from a power supply side to a power supply device by non-physical contact. ADVANTAGE - The device ensures resistance of a plasma conductive channel is small, so that consumption is reduced in transmission process, and transmission efficiency is improved. The device does not need photoelectric conversion device, and reduces energy loss caused by conversion, and ensures optical conversion transmission, and power of a radiation beam emitted by the laser is greater than self-focusing critical power. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a long-distance wireless power transmission device. 11Power supply 12Transmitting circuit 13Emitting module 21Load 22Receiving circuit 23Receiving module 121Rectifier transformer 122Inverter 123Transmitting end compensation network 130Plasma-based conductive channel 131Emitting end electrode 132Laser 133First metal body 134Focusing lens 221Filter 222Direct current converter 223Receiving end compensation network 231Receiving end electrode 233Second metal body N1First coil N2Second coil N3Third coil N4Fourth coil