Five-degree-of-freedom unilateral suspension-supported ball-disc flywheel integrated vehicle-mounted energy storage device

Abstract

The invention discloses a five-degree-of-freedom single-side suspension supported ball flywheel integrated vehicle-borne energy storage device for an electric vehicle. The middle part of a flywheel rotor is a main disc body, the upper part is a spherical ring, the lower part is an outer ring and an inner disc, a circular groove is formed between the inner disc and the outer ring, and an outer rotor motor is in the circular annular groove. A circular outer wall of the spherical ring is an outwardly convex spherical surface, and an inner wall is an inwardly convex spherical surface. The uppermost end of a radial stator of a five-degree-of-freedom magnetic bearing is an upper end ring of a ring body, a radial outer ring stator yoke extends downward from an outer side wall of an upper end ring, a radial inner ring stator yoke extends downward from an inner side wall, a spherical groove is formed between inner side walls of a radial outer ring stator pole extending inward from an inner sidewall of a lower end of the radial outer ring stator yoke, a spherical groove is formed between inner side walls of a radial inner ring stator pole extending outward from an outer side wall of a lowerend of the radial inner ring stator yoke, and the spherical ring sleeves the radial inner ring stator pole and the radial outer ring stator pole, the axial dimension is reduced, and the gyro effect is suppressed.

Description

technical field [0001] The invention relates to the field of a vehicle-mounted flywheel energy storage device (also called a flywheel battery) for electric vehicles, and specifically refers to a vehicle-mounted energy storage device that adopts five-degree-of-freedom unilateral suspension. Background technique [0002] Flywheel battery is a kind of mechanical energy storage battery. It has the advantages of high charging efficiency, high specific power, small mass, no pollution and long life. It is an ideal power battery for electric vehicles. At present, the main problems restricting the development of electric vehicles are the poor stability of the vehicle-mounted energy storage device, large space occupation rate and high price. The existing flywheel energy storage device has a long main shaft structure. When the energy storage device is disturbed by the outside world, it is prone to gyro effect and is not suitable for vehicle-mounted energy storage devices. Although the...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a five-degree-of-freedom single-side suspension-supported flywheel integration in order to solve the problems of serious gyro effect, large space occupation rate, high price and high energy consumption in the existing vehicle-mounted flywheel energy storage device. The vehicle-mounted energy storage device structurally reduces the gyroscopic effect of the flywheel rotor, reduces space occupancy, improves integration, reduces cost and energy consumption

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