COMBINED SUPERCONDUCTING MAGNETIC BEARING Russian patent published in 2024 - IPC H10N60/00 F16C39/06 

FIELD: elements of electrical equipment.

SUBSTANCE: use for electrical devices. Essence of the invention consists in the fact that the combined superconducting magnetic bearing consists of a stator in the form of a hollow tube made of a non-magnetic material with high heat conductivity, on the outer side of which superconducting windings are made, each of which is an HTS tape wound in layers, cooling system of HTS tapes and rotor made of non-magnetic material, on which permanent magnets are located in slots, wherein geometrical centres of every winding of HTS tapes and every row of rotor magnets are located opposite each other. Besides, rotor and stator axes of symmetry coincide. On one of the stator edges on its outer surface around the pipe there are stacks of HTS tapes, consisting of 1–100 layers, wherein the stacks of HTS tapes are overlapped to form a hollow superconducting prism with a wall thickness of 12 mm, at the base of which lies a regular polygon, wherein the number of sides of the polygon is determined by the diameter of the above pipe, further from the hollow superconducting prism at a distance of up to 20 mm on the outer surface of the above pipe are installed one after another along the vertical axis of pipe 5+4 n, where n=0, 1.2n, windings of HTS tapes with width of 12 mm, wherein each winding of HTS tapes consists of 1 to 70 layers and is coated with a layer of heat-insulating material, around the stator opposite to the HTS tapes windings at a distance of not more than 30 mm from the winding upper layer there is a cylindrical rotor made of non-magnetic material, on the inner side of which 5+4 n are fixed, where n=0, 1, 2…n, rows of permanent magnets with dimensions of 10×10×10 mm, in addition, rows of magnets are located at distance of 2 mm from each other in vertical direction with formation of Halbach magnetic assembly, wherein geometrical centres of each winding of HTS tapes and each row of magnets are located opposite each other and in each row all magnets are oriented in one direction.

EFFECT: increase of constant magnetic field and improvement of device stabilization at external actions, which tend to cause relative translational displacement of rotor and stator.

1 cl, 3 dwg