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Birotor four-drive rare-earth permanent-magnetism direct-current (dc) brushless motor

A technology of DC motors and rare earth permanent magnets, which is applied to motors, electric vehicles, electrical components, etc., can solve problems such as design and configuration difficulties, and achieve the effects of reducing configuration and use costs, increasing specific power, and reducing volume.

Inactive Publication Date: 2011-10-19
杨中兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For example, a motor that needs 240A current to work at a certain voltage, if a winding is designed, then the cross section of the single strand wire needs to be 35mm 2 ;The power supply must also have an 800Ah storage battery configuration; such a design and configuration is very difficult

Method used

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  • Birotor four-drive rare-earth permanent-magnetism direct-current (dc) brushless motor
  • Birotor four-drive rare-earth permanent-magnetism direct-current (dc) brushless motor
  • Birotor four-drive rare-earth permanent-magnetism direct-current (dc) brushless motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Stator core embedding wires, welding, shaping, and binding winding lead wires (8) to form a stator (4);

[0033] Riveting the magnetizer (5-3) and the inner and outer magnetic isolation rings (5-1) and (5-2) into a rigid body with a naked thick wire (5-5), and the rare earth magnet (5-4) inside And fix it in the magnetizer (5-3) with set screws (5-6) to form the rotor (5);

[0034] Such as figure 1 As shown, according to a certain process sequence, fix the two stators (4) in the middle of the casing (6); penetrate the motor shaft (1), and assemble the two rotors (5) on the motor shaft (1) respectively. The two sides of the middle two stators (4); the other two stators (4) are fixed on the front end cover (2) and the rear end cover (3), and the bearings (9) are respectively pressed into the bearing chambers of the two end covers; The front and rear end covers (2) and (3) that have assembled the stator (4) and the bearing (9) are respectively assembled from the two ends...

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Abstract

A birotor four-drive rare-earth permanent-magnetism direct-current brushless motor comprises a chassis (6), front and rear end caps (2) (3), a motor shaft (1), stators (4), rotors (5), a motor control signal device(12), fasteners (7) and the like. One chassis is provided with four stators (4) and two rotors (5); Four set dc sources correspondingly supply power for stator (4) windings; Electricity work of every stator (4) winding can drive rotors (5) to rotate so as to output mechanical power; The four stators (4) can be simultaneously loaded, be respectively loaded and be respectively unloaded; In the structure of the invention, a rotating external diameter of the motor is increased, a magnetic circuit cross section is increased, path is shortened, and power and torque are greatly raised; The motor is in small size, has light weight and large specific power; The motor is specially designed for electric cars; The motor structure changes power storage battery configuration. A high capacity is changed into a low capacity. In the prior art, a set of power storage battery supplies power uninterruptedly. But in the motor structure of the invention, there are four set of the power storage batteries with low capacities to supply power by turns. Therefore, usage safety and service life of the storage batteries can be raised. Configuration costs are reduced. The motor of the invention is a first choice in the new generation driving motors for the electric cars.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a high-power dual-rotor four-drive rare-earth permanent-magnet brushless DC motor dedicated to electric vehicles. Background technique [0002] This technology was born out of the development of electric vehicles. At present, pure electric vehicles at home and abroad generally use conventional cylindrical rare earth permanent magnet brushless DC motors, a rotor, a stator, and a set of batteries to energize a winding; [0003] The working current of high-power DC motor is very large, the cross-sectional area of ​​the current-carrying wire is large, and the cross-sectional area of ​​the iron core wire groove must also be correspondingly large, which causes great difficulties to the winding arrangement and motor design, and some high-current designs are even impossible. achieved; [0004] High-power motors require high-current support; high-current discharge requires matching large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K29/00H02K16/00
CPCY02T10/64
Inventor 杨中兴蔡书峰王耀坪张建修
Owner 杨中兴
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