MAGNETIC BEARING AND TURBO EQUIPMENT

摘要

The present invention relates to a magnetic bearing structure having a permanent magnet, capable of facilitating the magnetization of a permanent magnet while rotating a rotor without a separate deflection current. The magnetic bearing structure according to the present invention comprises: a ring-shaped permanent magnet placed at the lateral surface of a rotating shaft to be in parallel with the direction of the rotating shaft; a coil provided at one side of the permanent magnet, and a conductor provided at the outer side of the coil to be involved with the formation of a magnetic field path. According to this configuration, the rotor rotates by the magnetic field of the permanent magnet without necessarily supplying a separate deflection current to the coil that is provided at the magnetic bearing, and the magnetization direction of the permanent magnet and the shaft direction of the rotating shaft become parallel to each other, thereby facilitating the magnetization and further increasing the productivity of magnetic bearings.