A high torque density coreless motor and its dynamic balance adjustment method

A hollow cup, high torque technology, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems of low utilization rate of magnets and small torque density of motors, so as to improve the utilization rate of magnets and increase torque Density, the effect of increasing the air gap magnetic flux density

Active Publication Date: 2021-04-09
XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of low utilization rate of magnet steel and small motor torque density existing in the prior art, and to provide a high torque density hollow cup motor, aiming at the high torque density hollow cup motor

Method used

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  • A high torque density coreless motor and its dynamic balance adjustment method
  • A high torque density coreless motor and its dynamic balance adjustment method
  • A high torque density coreless motor and its dynamic balance adjustment method

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Embodiment Construction

[0036] In order to make the purpose, advantages and features of the present invention more clear, a hollow cup motor with high torque density and its dynamic balance adjustment method proposed by the present invention will be further described in detail below with reference to the drawings and specific embodiments. The advantages and features of the present invention will be more clear from the following specific embodiments. It should be noted that: the drawings are all in a very simplified form and use inaccurate proportions, which are only used to facilitate and clearly illustrate the purpose of the embodiments of the present invention; secondly, the structures shown in the drawings are often actual structures part.

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] In this embodiment, a hollow cup motor with high torque density, such as Figure 1~3 As shown, including the casin...

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Abstract

The invention relates to a hollow cup motor with high torque density and a dynamic balance adjustment method thereof, aiming to solve the problems of low utilization rate of magnetic steel and low torque density of the motor in the prior art. A hollow cup motor with high torque density of the present invention comprises a casing, a front end cover, a motor shaft, an armature winding, and a winding support. The installation cylinder, the motor shaft passes through the front end cover, the installation cylinder and the center of the winding bracket in turn, and the winding bracket is used to install the armature winding; it also includes inner and outer magnets with the same magnetization direction; the inner magnet is fixed on the The outer wall of the installation cylinder; the outer magnetic steel is fixedly set on the inner wall of the casing; the armature winding is set between the inner magnetic steel and the outer magnetic steel. Based on the above-mentioned hollow cup motor with high torque density, the present invention also provides a method for adjusting dynamic balance of the hollow cup motor with high torque density.

Description

technical field [0001] The invention relates to a hollow cup motor, in particular to a high torque density hollow cup motor and a dynamic balance adjustment method thereof. Background technique [0002] The structure of the coreless motor breaks through the rotor structure of the traditional motor, and uses an ironless rotor, that is, a coreless rotor. This new rotor structure completely eliminates the eddy current loss caused by the eddy current formed by the iron core. Its weight and moment of inertia are greatly reduced, thereby reducing the mechanical losses of the rotor itself. The hollow cup motor has small starting torque, fast speed adjustment, small rotation fluctuation and good control performance. [0003] However, the existing coreless motor still has the following two problems: [0004] First, the existing coreless motor adopts a single magnetic steel structure, that is, only the magnetic steel on the inner stator, the magnetic field is emitted from the inner...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/04H02K1/17H02K3/46H02K3/52
CPCH02K1/17H02K3/46H02K3/522H02K16/04H02K2201/03
Inventor 张岩刘彪郭小杭曹宽付豪刘晋杰段晓妮
Owner XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST
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