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Cylindrical-type linear magnetic-gear composite permanent magnet motor

A permanent magnet motor, linear motor technology, applied in electrical components, electromechanical devices, electric components, etc., can solve problems such as thrust fluctuations

Inactive Publication Date: 2015-09-02
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the thrust fluctuation problem of the existing magnetic gear compound motor, especially in the process of load disturbance or motor starting and braking, to improve the running stability of the motor

Method used

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  • Cylindrical-type linear magnetic-gear composite permanent magnet motor
  • Cylindrical-type linear magnetic-gear composite permanent magnet motor
  • Cylindrical-type linear magnetic-gear composite permanent magnet motor

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Embodiment Construction

[0007] Such as figure 1 As shown, the cylindrical linear magnetic gear compound permanent magnet motor includes a brushless DC linear motor and a linear magnetic gear. The compound permanent magnet motor has double mechanical ports and a three-layer air gap structure, including the main armature winding and The auxiliary damping winding can realize the bidirectional transmission of electromechanical energy; the brushless DC linear motor and the linear magnetic gear are coaxially integrated in a cylindrical structure, that is, the low-speed mover 17 and the inner stator 14 that constitute the magnetic gear and the The high-speed mover 5 and the outer stator 6 of the brushless DC linear motor form a double-stator double-move structure.

[0008] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the low-speed mover 17 leads to the low-speed mover connecting rod 23; the high-speed mover 5 leads to the high-speed mover link 24; the inner stator 14 is made of high mag...

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Abstract

The invention discloses a cylindrical-type linear magnetic-gear composite permanent magnet motor, and aims at solving a problem of thrust ripple of a conventional magnetic-gear composite motor. Especially for load disturbance or the starting or braking of a motor, the motor improves the operation stability. The motor comprises a brushless DC linear motor and a linear magnetic gear. The motor is also provided with double mechanical ports, and is in a three-layer gap structure. The motor comprises a main armature winding and an auxiliary damping winding, and can achieve the bidirectional transmission of electromechanical energy. The brushless DC linear motor and the linear magnetic gear respectively employ a cylindrical-type structure for coaxial integration. In other words, a double-stator double-rotor structure is formed through a low-speed rotor (17) and an inner stator (14) which form the magnetic gear, and a high-speed rotor (5) and an outer stator (6) which form the brushless DC linear motor.

Description

technical field [0001] The invention belongs to the technical field of electric motors and linear transmission, and in particular relates to a cylindrical brushless DC linear motor, which has the characteristics of high thrust density and high power factor, and is suitable for low-speed, high-power direct-drive electric transmission systems, and can also be used for Systems such as Stirling power generation and ocean wave power generation. Background technique [0002] High-thrust density linear motors are increasingly used in the field of electric power transmission. Because the intermediate conversion mechanism that converts rotary motion into linear motion is omitted, the volume of the device is reduced and the system cost is saved. Because there is no influence of inertia and resistance of the intermediate transmission mechanism, the dynamic and static performance of the linear transmission system is significantly improved. Modern electric drive systems have always tend...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/02H02K7/10
Inventor 包广清刘美钧李树豹常勇杨巧玲任冰段晓燕张贝
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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