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A Composite Magnetic Field Modulation Magnetic Coupling

A magnetic coupling and composite technology, applied in the direction of permanent magnet clutch/brake, electric brake/clutch, electromechanical device, etc. Magnetic field strength, the effect of improving torque transmission capacity

Active Publication Date: 2021-06-11
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to provide a composite magnetic field modulation magnetic coupling, aiming at solving the problem that the higher the speed-up ratio of the existing magnetic field modulation magnetic coupling, the more significant the unstable factors are. defect

Method used

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  • A Composite Magnetic Field Modulation Magnetic Coupling
  • A Composite Magnetic Field Modulation Magnetic Coupling
  • A Composite Magnetic Field Modulation Magnetic Coupling

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

[0029] figure 1 It is a structural schematic diagram of a traditional magnetic field modulation magnetic coupling, including an outer rotor 2 , an inner stator 4 , an inner rotor 5 , and a rotating shaft 6 . All stator and rotor structures are coaxial. The outer rotor 2 is made of magnetically conductive material, and its inner surface is equipped with radially magnetized permanent magnets. The...

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Abstract

The invention discloses a composite magnetic field modulation type magnetic coupling, which includes two structures, radial and axial. It is an outer stator, an outer rotor, an intermediate rotor, an inner stator and an inner rotor; a permanent magnet is embedded in the inner surface of the outer stator; a copper ring is placed on the inner rotor surface. The basic working principle of the axial structure is the same as that of the radial direction, the only difference is that the direction of the magnetic field changes from the radial distribution to the axial distribution. The invention can realize the conversion of fluctuating low-speed and high-torque input into constant high-speed and low-torque output. The difference from the existing structure is that this structure not only ensures a high speed-up ratio but also has a faster dynamic response. Prospects for applications in power generation systems.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet motors, and more specifically relates to a composite magnetic field modulation magnetic coupling. Background technique [0002] With the gradual consumption of non-renewable energy, the development of new energy technology has received more and more attention. Wind power, due to its abundant global wind energy reserves, cleanliness and renewability, has been valued by the power industry and applied to the link of power production. In a traditional wind power generation system, a mechanical gearbox is often required to convert the high-torque and low-speed of the wind blades into a high-speed, low-torque output, and then act on the generator; due to the instability of the wind speed, the generator's The speed will fluctuate, which will affect the stability of the power generation frequency. The inverter is required to perform rectification and inversion to obtain electric energy with the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K49/10
CPCH02K49/106
Inventor 李大伟房莉曲荣海
Owner HUAZHONG UNIV OF SCI & TECH
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