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Vehicle Flywheel Batteries Using Hybrid Magnetic Bearings with Five Degrees of Freedom

A hybrid magnetic bearing and flywheel battery technology, applied in electromechanical devices, electrical components, electric components, etc., can solve the problems of low integration and long axial length of the rotor, and achieve high control accuracy, reduce quality, and eliminate losses. Effect

Active Publication Date: 2020-02-21
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structural design is not highly integrated, resulting in too long axial length of the rotor and more obvious gyro effect

Method used

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  • Vehicle Flywheel Batteries Using Hybrid Magnetic Bearings with Five Degrees of Freedom
  • Vehicle Flywheel Batteries Using Hybrid Magnetic Bearings with Five Degrees of Freedom
  • Vehicle Flywheel Batteries Using Hybrid Magnetic Bearings with Five Degrees of Freedom

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Embodiment Construction

[0025] see figure 1 and figure 2 Shown, the outermost of the present invention is a casing 16, and casing 16 is a hollow cylinder, and the top of casing 16 seals and connects upper end cap 15, and the bottom seal connects lower end cap 17, and the shape of upper end cap 15 and lower end cap 17 is identical, is Conical end cover with a through hole in the center to install an auxiliary bearing, wherein the center through hole of the upper end cover 15 is installed with the upper auxiliary bearing 12 through interference fit, and the center through hole of the lower end cover 17 is through interference fit The lower auxiliary bearing 13 is installed, and the upper auxiliary bearing 12 is identical in shape and size with the lower auxiliary bearing 13, and its outer diameter is equal to the inner diameter of the central through hole. A closed vacuum chamber is formed between the shell 16 , the upper end cover 15 and the lower end cover 17 .

[0026] There is a five-degree-of-f...

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Abstract

Disclosed by the present invention is a vehicle-mounted flywheel battery using a five-degree-of-freedom hybrid magnetic bearing as a magnetic suspension support; the five-degree-of-freedom hybrid magnetic bearing is arranged at the exact middle of an inner portion of a sealed vacuum chamber; a magnetic bearing rotor is coaxially and tightly sleeved outside of a rotating shaft of the magnetic bearing at the exact middle of the magnetic bearing; a tension disk is tightly sleeved outside of the exact center of the magnetic bearing rotor in the axial direction, and a flywheel is fixedly sleeved outside of the tension disk; a stator pole is wound with a radial control coil, and an axial stator is internally provided with an axial control coil; at the exact center outside of a top surface of an outer casing is a motor / generator, a rotating shaft of the motor extending from top to bottom into the outer casing and being coaxially and fixedly connected to an upper end of the rotating shaft of the magnetic bearing; by integrating the tension disk and the flywheel into one unit, the axial length of the flywheel battery is further shortened, and the gyroscopic effect is effectively suppressed; the five-degree-of-freedom hybrid magnetic bearing integrates two single-piece three-degree-of-freedom hybrid magnetic bearings together, and is distributed on two sides of the tension disk by using a manner of mirror-symmetry, having high control precision.

Description

technical field [0001] The invention relates to the field of a vehicle-mounted flywheel battery (also called a flywheel energy storage device) for electric vehicles, in particular to a vehicle-mounted flywheel battery using a five-degree-of-freedom hybrid magnetic bearing as a magnetic suspension support. Background technique [0002] At present, the main problem restricting the development of electric vehicles is the performance of vehicle power batteries. The vehicle flywheel battery uses the magnetic levitation support and the rotational inertia of the flywheel to realize energy storage. It has high charging efficiency, high specific energy, high specific power, small mass, no pollution and long service life. Due to the limited space of electric vehicles, the requirements for the volume of the flywheel battery are relatively high, and the magnetic suspension bearing is a key component for supporting the flywheel battery, and its volume directly affects the volume of the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/02H02K7/09
CPCH02K7/025H02K7/09Y02E60/16
Inventor 张维煜杨恒坤朱熀秋陈涛程玲
Owner JIANGSU UNIV
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