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

Claim 0:
1. An ultra-thin vehicle-mounted magnetic suspension flywheel battery, comprising a shell, wherein
a motor bracket, an axial flux motor, a flywheel, and an inner stator, a coil, and a permanent magnet of a five-degree-of-freedom magnetic bearing are coaxially arranged in the shell from top to bottom,
the flywheel consists of an upper layer, a middle layer, and a lower layer which are continuous, wherein
the upper layer is a flywheel upper annular layer which is in a shape of a circular ring, an upper annular groove is formed in a middle of the flywheel upper annular layer, and the axial flux motor is placed in the upper annular groove;
the middle layer is a flywheel middle layer consisting of a flywheel disc layer and a flywheel double ring layer below the flywheel disc layer, wherein
the flywheel disc layer is in a shape of a solid disc,
the flywheel double ring layer consists of an annular flywheel rotor pole and a flywheel annular outer layer coaxially distributed with respect to a central axis,
the annular flywheel rotor pole is in a shape of a circular ring concentrically protruding downward from a middle of a lower surface of the flywheel disc layer,
an annular inner groove is formed in a middle of the annular flywheel rotor pole,
an outer circumference of the flywheel annular outer layer is a spherical envelope surface, and
a middle-layer annular cavity is formed between an inner wall of the flywheel annular outer layer and an outer wall of the annular flywheel rotor pole;

the lower layer is a flywheel lower annular layer which is in a shape of a circular ring, a lower annular groove is formed in a middle of the flywheel lower annular layer and the annular inner groove, the middle-layer annular cavity, and the lower annular groove are communicated with each other and jointly used for placing the inner stator, the coil, and the permanent magnet of the five-degree-of-freedom magnetic bearing.