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E-type double-winding stator axial flux motor made of amorphous material

A technology of axial magnetic flux and amorphous materials, applied in the direction of synchronous motors with stationary armatures and rotating magnets, etc., can solve the problems that the power density cannot be further improved, the current density is difficult to increase, and the torque power density is small. Achieve the effects of increasing operational redundancy, good cooling effect, and improving motor efficiency

Active Publication Date: 2020-04-24
SOUTHEAST UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, new energy vehicle motors mostly use radial permanent magnet flux motors, which have lower torque power density than axial flux motors
In addition, the copper wire of the radial flux motor is wrapped in the stator core, which makes it difficult to dissipate heat and increase the current density, which also leads to the inability to further increase the power density.

Method used

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  • E-type double-winding stator axial flux motor made of amorphous material
  • E-type double-winding stator axial flux motor made of amorphous material
  • E-type double-winding stator axial flux motor made of amorphous material

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Embodiment Construction

[0022] The E-type double-winding stator axial flux motor of the amorphous material, its specific implementation is as follows figure 1 As shown, it mainly includes two parts: stator assembly part I and rotor part II.

[0023] Stator assembly parts such as image 3 , 4 As shown, the motor includes two parts: the stator combination I located on the outer periphery and the rotor combination II located in the middle; Double winding; stator double winding can use three-phase or multi-phase design, wound on the E-shaped iron core, the rotor combination II includes the rotor core 5 and the rotor permanent magnet 4, the rotor magnet label is attached to the upper and lower sides of the rotor core, It forms a magnetic circuit combination similar to a transformer with the E-type stator core; the stator combination I and the rotor combination II together form a three-phase or multi-phase axial flux permanent magnet synchronous motor.

[0024] Rotor part such as Figure 5 As shown, it...

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PUM

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Abstract

The invention discloses an E-type double-winding stator axial flux motor based on an amorphous material. The structure and the production process are simple and easy to realize, and the heat dissipation of winding copper wires is easier due to the special structure. The novel motor comprises a stator combination part and a rotor part, the stator combination part is composed of an E-shaped iron core and a double-winding copper wire, and the rotor part is composed of a rotor iron core and a magnet. The stator module adopts a double-winding E-shaped iron core design, the iron core is formed by shearing an amorphous material into E-shaped sheets and laminating the E-shaped sheets, the production process is simple, and the stator iron loss is greatly reduced compared with that of a traditionalsilicon steel sheet iron core. Meanwhile, due to the double-winding design, current distribution in the two windings can be flexibly adjusted, the redundancy and reliability of motor operation are improved, and under the condition that one winding fails, the motor can still depend on the other winding to achieve partial torque output.

Description

technical field [0001] The invention relates to an E-type double-winding stator axial magnetic flux motor of amorphous material, which realizes the design of a modular motor with low loss and high power density. Background technique [0002] The electric motors of electric and hybrid electric vehicles need to realize the design of low loss and high power density due to the limitation of space and weight. At present, new energy vehicle motors mostly use radial permanent magnet flux motors, which have lower torque power density than axial flux motors. In addition, the copper wire of the radial flux motor is wrapped in the stator core, which makes it difficult to dissipate heat and increase the current density, which also leads to the inability to further increase the power density. Therefore, in recent years, major companies and research institutions are also considering the design and application of axial flux motors to further improve the power density of motors for new ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/16
CPCH02K21/16
Inventor 徐炜
Owner SOUTHEAST UNIV
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