Brushless dual-mechanical-port permanent magnet motor based on magnetic field modulation principle

A dual mechanical port, permanent magnet motor technology, which is applied to electromechanical devices, magnetic circuits, electrical components, etc., can solve the problems of complex manufacturing process, high production cost, and high process requirements for manufacturing and processing, and achieves reduced manufacturing difficulty and compact structure. , the effect of large torque density

Active Publication Date: 2017-02-01
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0005] But the double-mechanical-port double-electric-port permanent magnet motor disclosed in the patent document CN105375714A also has the following deficiencies. First, the structure proposed in the patent document has two stators and two rotors with three layers of air gaps between them. The process requirements are high, and the manufactu

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  • Brushless dual-mechanical-port permanent magnet motor based on magnetic field modulation principle
  • Brushless dual-mechanical-port permanent magnet motor based on magnetic field modulation principle
  • Brushless dual-mechanical-port permanent magnet motor based on magnetic field modulation principle

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0036] figure 1 It is a dual electromechanical port motor with an outer stator structure based on the magnetic field modulation principle of the embodiment of the present invention, and the permanent magnet rotor is placed between the stator and the modulation rotor; as figure 1 As shown, the permanent magnet motor includes a single stator 1, a modulation rotor 4 and a permanent magnet rotor 5;...

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Abstract

The invention discloses a brushless dual-mechanical-port permanent magnet motor based on a magnetic field modulation principle. The brushless dual-mechanical-port permanent magnet motor comprises a single stator (1), modulation rotors (4) and permanent magnet rotors (5), wherein a closing slot is formed in the surface of the stator (1); two sets of windings with different numbers of pole pairs are placed in the slot; one set of the winding is a modulation winding while the other set of the winding is a permanent magnet winding; the pole pair number PAI of the permanent magnet winding is equal to the pole pair number Pm of the permanent magnet rotors, so that the stator and the permanent magnet rotors can form a permanent magnet motor structure; and meanwhile, the pole pair number PA of the modulation winding is equal to an absolute value of a sum value or a difference value of a salient pole number Pf of the modulation rotors and the pole pair number Pm of the permanent magnet rotors, so that the stator, the modulation rotors and the permanent magnet rotors can form a magnetic field modulation motor structure. The brushless dual-mechanical-port permanent magnet motor is complex in structure, and the manufacturing difficulty is greatly lowered; and in addition, a single-stator and double-air-gap structure of the motor is more compact, so that relatively high torque density can be realized.

Description

technical field [0001] The invention belongs to the field of permanent magnet motors, and more specifically relates to a brushless dual mechanical port permanent magnet motor based on the principle of magnetic field modulation. Background technique [0002] In various fields, transmission devices that change the speed and torque of rotating parts are used. For example, the gear commonly used in industry is a device with a fixed speed and torque transmission ratio. With the development of industry, people's requirements for transmission devices are constantly increasing, and devices with variable transmission ratios are also required, that is, continuously variable transmissions. However, the transmission of this device is constrained by the power relationship, and the output power must be the same as the input power when the loss is not considered, which also limits its use. For example, in a hybrid vehicle, in order to ensure the maximum efficiency of the engine, the engin...

Claims

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Application Information

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IPC IPC(8): H02K16/02H02K1/16H02K3/28
CPCH02K1/165H02K3/28H02K16/02
Inventor 李大伟曲荣海任翔
Owner HUAZHONG UNIV OF SCI & TECH
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