Patent ID: 11870323
Assignee: JIANGSU UNIVERSITY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  F  H

Claim 2:
3. The ultra-thin vehicle-mounted magnetic suspension flywheel battery according to claim 2, wherein
the axial magnetic bearing comprises an axial magnetic bearing stator, an axial permanent magnet, and an axial coil, the axial magnetic bearing stator is coaxially sheathed in the axial permanent magnet, the axial permanent magnet is magnetized radially and has an inner side as an N pole and an outer side as an S pole, an upper section of the axial magnetic bearing stator is an axial stator pole, the axial coil which is in a shape of a circular ring is wound on the axial stator pole, and the axial stator pole and the axial magnetic bearing stator are configured to be assembled to form a complete cylindrical shape; the axial permanent magnet is in a shape of a ring, and is tightly sheathed in the annular inner groove;
the repulsive magnetic bearing comprises a repulsive magnetic bearing stator, and first and second repulsive permanent magnets distributed coaxially, the repulsive magnetic bearing stator is in a shape of a ring and is fixedly sleeved outside the axial magnetic bearing stator, an upper surface of the repulsive magnetic bearing stator is provided with an annular groove configured for mounting the second repulsive permanent magnet therebelow, the first repulsive permanent magnet is located exactly above and not in contact with the second repulsive permanent magnet, the first repulsive permanent magnet and the second repulsive permanent magnet are both magnetized axially, and N poles of the first repulsive permanent magnet and the second repulsive permanent magnet are opposite to each other; an upper end surface of the first repulsive permanent magnet is closely attached to a lower end surface of the annular flywheel rotor pole;
the torsional magnetic bearing comprises a torsional magnetic bearing stator, first to third torsional control coils, and first to sixth torsional permanent magnets, the first to sixth torsional permanent magnets are all magnetized radially, and the first to third permanent magnets on an outer side have a same magnetization direction and each have an inner side as an N pole and an outer side as an S pole; the fourth to sixth torsional permanent magnets on an inner side have a same magnetization direction and each have an inner side as an S pole and an outer side as an N pole, the torsional magnetic bearing stator is in a shape of a circular ring and is fixedly sleeved outside the repulsive magnetic bearing stator, first to third identical fan-shaped torsional stator poles are evenly arranged on an upper surface of the torsional magnetic bearing stator along a circumferential direction, the first to third torsional control coils are respectively wound on the first to third identical fan-shaped torsional stator poles, and one of the first to third identical fan-shaped torsional stator poles is arranged between each of the fourth to sixth torsional permanent magnets on the inner side and the first to third torsional permanent magnet on the outer side that is radially opposite to the each of the fourth to sixth torsional permanent magnet the first to third torsional permanent magnets on the outer side are closely attached to an outer sidewall of the middle-layer annular cavity, and an inner ring of each of the fourth to sixth torsional permanent magnets on the inner side is closely attached to an outer ring of the annular flywheel rotor pole;
the radial spherical magnetic bearing comprises a radial magnetic bearing stator and first to third radial control coils, the radial magnetic bearing stator which is in a shape of a ring is fixedly sleeved outside the magnetic bearing stator, first to third identical radial stator poles, extending radially outward are evenly arranged on an outer sidewall of the radial magnetic bearing stator along a circumferential direction, an outer sidewall of each of the first to third identical radial stator poles is a part of a spherical surface, and the first to third radial control coils are connected in series and are respectively wound on the first to third identical radial stator poles in one-to-one correspondence.