Vehicle-mounted flywheel battery by adopting five-degree-of-freedom hybrid magnetic bearing

A technology of hybrid magnetic bearings and flywheel batteries, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of too long axial length of the rotor and low integration, and achieve quality reduction, high control precision, avoid deformation and even damage effect

Active Publication Date: 2017-12-01
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-mounted flywheel battery by adopting five-degree-of-freedom hybrid magnetic bearing
  • Vehicle-mounted flywheel battery by adopting five-degree-of-freedom hybrid magnetic bearing
  • Vehicle-mounted flywheel battery by adopting five-degree-of-freedom hybrid magnetic bearing

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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

The invention discloses a vehicle-mounted flywheel battery by adopting a five-degree-of-freedom hybrid magnetic bearing. The right middle inside a sealed vacuum chamber is provided with the five-degree-of-freedom hybrid magnetic bearing; the rotation shaft in the right middle of the magnetic bearing is coaxially and tightly sleeved with a magnetic bearing rotor; the right axial middle of the magnetic bearing rotor is tightly sleeved with a pulling force disc; the pulling force disc is fixedly sleeved with a flywheel; a stator pole is wound with a radial control coil; the axial stator is internally provided with an axial control coil; the right middle outside the top surface of an outer shell is a motor/generator, and the rotation shaft of the motor extends to the outer shell from top to bottom and is coaxially and fixedly connected onto the upper end of the rotation shaft of the magnetic bearing; the pulling force disc and the flywheel are integrated as a whole, the axial length of the flywheel battery is further shortened, gyroscopic effects can be effectively suppressed, two single three-degree-of-freedom hybrid magnetic bearings are integrated to form the five-degree-of-freedom hybrid magnetic bearing and are distributed at two sides of the pulling force disc in a mirror symmetry mode, and the control precision is high.

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 Applications(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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