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Modular multi-disc type permanent magnet brushless motor

A permanent magnet brushless, multi-disk technology, applied in the shape/style/structure of electromechanical devices, electrical components, winding conductors, etc., can solve the problems of efficiency, power density and other adverse effects, and achieve enhanced reliability and improved rotation speed. Moment quality, the effect of reducing the end length

Inactive Publication Date: 2014-05-07
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of the above two winding structures have defects, which have adverse effects on efficiency and power density

Method used

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  • Modular multi-disc type permanent magnet brushless motor
  • Modular multi-disc type permanent magnet brushless motor
  • Modular multi-disc type permanent magnet brushless motor

Examples

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Embodiment Construction

[0018] 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.

[0019] Such as figure 1 As shown, the structure of the motor provided in this example is:

[0020] The casing 1, the left end cover 2, and the right end cover 3 constitute the outer casing of the motor, and the rotating shaft 4 is installed on the left end cover 2 and the right end cover 3 through the left bearing 5 and the right bearing 6 respectively, and at least two power modules are arranged in the casing 1 , each power module is composed of a rotor disk 7, a permanent magnet 8, a stator core 9 and a stator winding 10, the rotor disk 7 is fixed on the rotating shaft 4, the stator core 9 is fi...

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Abstract

The invention discloses a modular multi-disc type permanent magnet brushless motor, belonging to the technical field of motors. A casing, a left end cover and a right end cover constitute an outer shell of the motor, one end of a rotation shaft is arranged on the left end cover through a left bearing, the other end of the rotation shaft is arranged on the right end cover through a right bearing, the casing is internally provided with at least two power modules, each power module is composed of two rotor discs, permanent magnets, a stator iron core and a stator winding, the rotor discs are fixed on the rotation shaft, the stator iron cores are fixed on the casing, each stator winding is wound on the corresponding stator iron core and located between the two rotor discs, and each rotor disc is used for holding the corresponding permanent magnet. The stator winding of each power module can be of a fan-ring mixed winding structure, lead wires are led out independently, and the two rotor discs are of a bidirectional inclined electrode structure. The modular multi-disc type permanent magnet brushless motor has the advantages of increasing the light running efficiency of a system, simplifying a winding structure to increase the efficiency, weakening the torque of a tooth socket to increase the torque quality, and increasing the system reliability.

Description

technical field [0001] The invention belongs to the technical field of motors, and is a modular multi-disk permanent magnet brushless motor, which is especially suitable as a drive motor for electric vehicles. Background technique [0002] In order to meet the requirements of large torque output at base speed and limit acceleration time, and to adapt to complex working conditions such as vehicle start, acceleration, load climbing, frequent start and stop, the existing vehicle motor system is often designed with a large reserve power. The load rate of electric vehicles varies greatly during actual operation and is in a low load rate operating state for a long time, which leads to low system efficiency and short driving range. In order to improve the efficiency of the electric drive system, permanent magnet motors are widely used as the main drive motor of electric vehicles, but the problem that the system efficiency is greatly reduced due to low load rate has not been solved....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/00H02K3/28
Inventor 杨凯冯垚径高磊张浩
Owner HUAZHONG UNIV OF SCI & TECH
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