Integrated air-cooled axial flux motor

Abstract

The invention discloses an integrated air-cooled axial magnetic flux motor and belongs to the technical field of motor cooling. The motor is characterized in that a casing for connecting a front rotorand a rear rotor is provided with blades which are obliquely arranged, a rotor disc of the front rotor and / or the rear rotor is provided with an air inlet, a stator comprises a stator support, two axial ends of the stator support are symmetrically provided with a plurality of support columns which are radially arranged, a plurality of support columns form a plurality of U-shaped grooves along thecircumferential direction, the supporting columns at two ends are connected through a circumferential bottom, ventilation openings and circumferentially-arranged heat dissipation ribs are arranged atthe circumferential bottom, the stator iron core wound with the stator coil is embedded in the U-shaped groove, the rotor magnetic steel adopts an oblique pole type structure, a U-shaped heat pipe isfurther arranged on the stator core, one end of the U-shaped heat pipe is inserted into the stator core in the axial direction, the other end of the U-shaped heat pipe is located on a circumferentialouter surface of the stator core and tightly attached to the stator coil, and the stator core and the U-shaped heat pipe are integrally formed. The motor is advantaged in that the temperature of thewinding and the iron core in the axial flux motor can be effectively reduced, and thermal performance of the motor is improved.

Description

technical field [0001] The invention belongs to the technical field of motor cooling, and more specifically relates to an integrated air-cooled axial flux motor. Background technique [0002] The axial flux permanent magnet motor has attracted extensive attention and research from scholars at home and abroad because of its flat and compact structure and high power (torque) density. As a promising high power (torque) density motor topology, the axial Flux motors have good application prospects in aerospace, ship propulsion, electric vehicles and other fields with limited weight and space. [0003] Among the axial flux motors, the single-stator double-rotor yokeless armature separation type (YASA type, Yokeless and Segmented Armature) axial flux motor saves the stator yoke, the stator iron loss is small, and the armature winding coil can be The use of modular winding has attracted a lot of attention, and there are many related research results, and because of its large power ...

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Problems solved by technology

[0004] However, due to the compact structure of the axial flux motor, it is difficult to cool it, especially for the YASA structure motor, because the stator has no yoke, the winding heat flow channel is reduced, which makes it difficult to dissipate heat from the motor winding. Therefore, it is necessary to design an efficient winding cooling method to reduce the winding temperature. To improve the thermal performance of the motor, it is very important to increase the power and torque of the motor

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