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High Power Density Shaft Transverse Flux External Rotor Permanent Magnet Motor for Aerospace

A high power density, transverse magnetic flux technology, applied in the direction of magnetic circuit rotating parts, magnetic circuits, electric components, etc., can solve the problems of no permanent magnet motors, etc., and achieve the effects of light weight, increased output power, and small size

Active Publication Date: 2021-09-24
哈尔滨航威智能装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as the current technology and existing products are concerned, there is no permanent magnet motor with a high power density shaft transverse flux external rotor

Method used

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  • High Power Density Shaft Transverse Flux External Rotor Permanent Magnet Motor for Aerospace
  • High Power Density Shaft Transverse Flux External Rotor Permanent Magnet Motor for Aerospace
  • High Power Density Shaft Transverse Flux External Rotor Permanent Magnet Motor for Aerospace

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Experimental program
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Effect test

Embodiment

[0037] The maximum diameter of the permanent disk motor with the axial transverse magnetic flux structure designed in this embodiment is 200 mm, the radial length is 80 mm, and the air gap between the stator and rotor cores is 1 mm. At 6000rpm, the rated output torque of the motor is higher than 70Nm, the output power reaches 45kW, the core weight of the motor is about 11kg, and the power density is about 4.1kW / kg. Compared with the traditional axial flux disk motor of the same size, the output power is increased by more than 40%, the power density is increased by more than 30%, and the expected design effect is achieved. The output torque of the motor during power-on operation is as follows: Figure 4 shown.

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PUM

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Abstract

The invention discloses a permanent magnet motor with high power density shaft transverse magnetic flux external rotor used in the field of aerospace. Inner stator and air gap, in which: axial transverse magnetic flux compound outer rotor includes axial magnetic circuit rotor and transverse magnetic circuit rotor; axial magnetic circuit rotor is symmetrically distributed on both sides of "concave" shaped iron core composite inner stator; transverse magnetic circuit rotor Distributed along the outer circumference and located outside the "concave" shaped iron core composite inner stator; the "concave" shaped iron core composite inner stator includes a composite stator core and a concentrated stator winding; the composite stator core consists of multiple "concave" The iron core is assembled; the concentrated stator winding obliquely bypasses each "concave" shaped iron core, and the end of the concentrated stator winding is coupled with the transverse magnetic circuit to output torque. The motor has the advantages of small size and light weight, and can meet the performance requirements of aerospace and other fields.

Description

technical field [0001] The invention relates to a permanent magnet motor, in particular to a high power density shaft transverse magnetic flux outer rotor permanent magnet motor. Background technique [0002] In terms of magnetic circuit form, the permanent magnet motor with axial flux has the advantages of short axial length and large output torque, so it has advantages in power density; the permanent magnet motor with transverse flux has a special magnetic circuit and has electromagnetic load interaction. Features of decoupling and flexible winding arrangement. In terms of motor structure, the external rotor motor has the characteristics of large moment of inertia and high power density. Therefore, these types of motors have been widely used in aerospace fields that require high power density. However, with the further improvement of the power density requirements in the aerospace field, it is gradually difficult for the permanent magnet motors with several traditional s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/00H02K3/28H02K3/50H02K1/27H02K1/14
CPCH02K1/146H02K1/2786H02K3/28H02K3/50H02K16/00H02K2201/03H02K2201/12
Inventor 李勇马鹏程胡建辉王骞江善林刘承军赵猛尚静
Owner 哈尔滨航威智能装备有限公司