Electro-magnetic flux switching two-phase square-wave motor
A magnetic flux switching and electric excitation technology, applied in the direction of magnetic circuits, electric components, electrical components, etc., can solve the problems of high hardware costs such as position sensors and control chips, complex control algorithms, etc., to achieve cost performance, reduce complexity, good start effect
Active Publication Date: 2016-02-24
浙江恒熙国铁能源科技有限公司
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Problems solved by technology
[0005] In addition, conventional flux switching motors (such as Figure 1-Figure 8 ) is generally designed as a sine wave back EMF winding. Although the sine wave brushless motor control has superior performance, the hardware costs such as position sensors and control chips are high, and the control algorithm is complicated. In many cases, the brushless control method using square wave back EMF has better high cost performance
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[0040] The specific embodiments of the present invention will be described in detail below in conjunction with the drawings.
[0041] Such as Figure 9-10 As shown, this embodiment provides a specific embodiment of a two-phase square wave motor with electric excitation flux switching, such as Picture 9 It is a schematic structural diagram of the motor of the present invention. The electrically excited magnetic flux switching two-phase square wave motor includes a secondary rotor 5 and an armature 3 surrounding the secondary rotor 5. The armature 3 is laminated by a single piece of silicon steel sheet, which can be used as a stator or an outer rotor. The motor only has a coil on the armature 3 stator, which is divided into two types: excitation winding and driving winding.
[0042] The armature 3 is provided with 8 equally spaced armature protruding teeth 4, among the 8 armature recesses 2 formed by two adjacent armature protruding teeth 4: 4 alternate armature recesses 2 are plac...
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The invention belongs to the field of manufacture and application of motors and provides an electro-magnetic flux switching two-phase square-wave motor. The electro-magnetic flux switching two-phase square-wave motor comprises a secondary rotor and an armature surrounding the secondary rotor, wherein 8 convex armature teeth are arranged in the armature at equal intervals; in 8 armature grooves formed between the adjacent convex armature teeth, excitation windings for generating excitation fields are arranged in 4 alternate armature grooves, and A-phase drive windings and B-phase drive windings are arranged in the other 4 armature grooves and arranged oppositely. The motor windings also have square-wave counter electromotive force, and control with higher cost performance can be realized. The two-phase windings are adopted, so that better advantages of start and rapid steering are realized while the complexity of the windings is reduced, and the cost performance of the motor is improved. The motor has all the advantages of a flux switching motor, can perform short-time large-multiple overload running in short-time duty and is particularly applicable to load variation occasions.
Description
Technical field [0001] The invention belongs to the field of motor manufacturing and its applications, and particularly relates to an electrically excited magnetic flux switching two-phase square wave motor. Background technique [0002] The magnetic flux switching (switching flux linkage) motor, the rotor is only composed of iron core, the structure is simple and reliable, and it is easy to run at high speed. Under the appropriate control algorithm, it can achieve high-efficiency speed control and low cost. The current winding and permanent magnets are both on the stator side for easy cooling. With permanent magnets, the thrust density is high, and it is generally designed as a sine wave back electromotive force, which is suitable for servo control. [0003] Conventional flux switching motors such as figure 1 As shown, permanent magnets are used as the excitation magnetic field. Or use as figure 2 , image 3 The structure shown is a hybrid excitation method with a DC coil and a ...
Claims
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IPC IPC(8): H02K29/00H02K1/16H02K1/24H02K29/08
CPCH02K1/165H02K1/24H02K29/00H02K29/08H02K2213/03
Inventor 蔡炯炯任嘉祺吴慧伶王子辉
Owner 浙江恒熙国铁能源科技有限公司