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AC/DC three-degree-of-freedom axial monobrid magnetic bearing for vehicle-mounted flywheel battery

A hybrid magnetic bearing and flywheel battery technology, applied in the direction of shafts and bearings, bearings, engine components, etc., can solve the problems of increasing the volume and quality of magnetic bearings, and achieve the effects of improving equipment efficiency, simplifying the magnetic circuit, and reducing volume

Active Publication Date: 2017-11-24
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure undoubtedly increases the volume and quality of the magnetic bearing

Method used

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  • AC/DC three-degree-of-freedom axial monobrid magnetic bearing for vehicle-mounted flywheel battery
  • AC/DC three-degree-of-freedom axial monobrid magnetic bearing for vehicle-mounted flywheel battery
  • AC/DC three-degree-of-freedom axial monobrid magnetic bearing for vehicle-mounted flywheel battery

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Embodiment Construction

[0024] see figure 1 and figure 2 , in the middle of the present invention is the rotor 3, and outside the rotor 3, a radial stator 1, a permanent magnet 4, and a single-piece axial stator 6 are coaxially sleeved in sequence from top to bottom, and the axial stator 6 is covered with a tension disc 7, and the tension disc 7 is fixedly connected with the rotor 3 coaxially. The yoke of the radial stator 1 is a hollow cylinder, and the yoke of the radial stator 1 is uniformly arranged with three radial stator poles along the circumferential direction, which are respectively radial stator poles 11 , 12 , and 13 . The upper and lower end faces of the three radial stator poles 11 , 12 , and 13 are respectively flush with the upper and lower end faces of the yoke of the radial stator 1 . A radial control coil is wound on each radial stator pole, which are respectively radial control coils 21, 22, and 23. Three identical radial control coils are wound on the radial portion of the rad...

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Abstract

The invention discloses an AC / DC three-degree-of-freedom axial monobrid magnetic bearing for a vehicle-mounted flywheel battery. A rotor is coaxially sleeved with a radial stator, a permanent magnet and a single-chip axial stator from top to bottom in sequence. The axial stator is sleeved with a tension disk. The tension disk is coaxially and fixedly connected with the rotor. Three radial stator poles are uniformly arranged on the yoke part of the radial stator in the circumferential direction. A radial control coil is wound around each radial stator pole. The surfaces of the inner ends of the three radial stator poles are arc-shaped cylindrical surfaces. Radial air gaps are reserved between the cylindrical surfaces and the rotor. The axial stator is internally provided with an axial control coil which is attached to the inner wall of the axial stator. An axial air gap is reserved between the lower end face of the axial stator and the inner bottom surface of the tension disk. The annular permanent magnet conducts axial magnetization and is fixedly connected with the lower end of the radial stator and the upper end of the axial stator. The radial stator is of a single-chip structure. The structure of the magnetic bearing is simplified. The mass of the magnetic bearing is reduced. Power consumption is reduced.

Description

technical field [0001] The invention relates to a non-mechanical contact magnetic suspension bearing, in particular to a hybrid magnetic bearing used for suspension support of a vehicle-mounted flywheel battery. Background technique [0002] At present, the main problem restricting the development of electric vehicles is the performance of the on-board power battery. The on-board flywheel battery uses the magnetic suspension 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 and no pollution. . 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 flywheel battery. [0003] The traditional AC-DC hybrid magnetic bearing adopts a radial stator with a four-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/04
CPCF16C32/0465F16C32/0485F16C2361/55
Inventor 张维煜杨恒坤朱熀秋
Owner JIANGSU UNIV
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