Multistage inner rotor switch reluctance motor
A technology of switched reluctance motors and rotor cores, applied to electrical components, electromechanical devices, electric components, etc., can solve problems such as troublesome coil winding process, large motor vibration, and large noise
Active Publication Date: 2015-01-21
王国仁 +1
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Problems solved by technology
[0003] The coil winding process of the motor with this structure is troublesome, and it is difficult to manufacture a high-power, high-torque switched reluctance motor. The magnetic pulling force received on the pole shoes of the stator and rotor cores is not evenly distributed on the core circle, so that When the motor is running, the iron core deforms a lot due to the action of the force and magnetic pull, and then the motor vibrates and makes a lot of noise
This is the common and difficult technical problem of this type of motor at present, and it is also the fundamental reason that affects its promotion and popularization.
Method used
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Embodiment Construction
[0025] Such as Figure 1-Figure 12 Said, a multi-stage switched reluctance motor, comprising a stator core (1), an excitation coil (2), a rotor core (3), a casing (4), an end cover (5), a bearing (6), The rotating shaft (7), the stator core connecting piece (8), the rotor core connecting piece (9), the position sensing encoder (16), etc.
[0026] The stator core (1) is fixed in the casing (4), the excitation coil (2) is placed in the groove (11) of the stator core (1), and the rotating shaft (7) is fixed on the rotor core (3). In the central hole (13), the rotor iron core (3) is placed in the inner garden (14) of the stator iron core (1) to form an inner rotor structure; a single set of stator iron core (1), rotor iron core (3) and excitation coil (2) have just constituted a "unit independent magnetic circuit closed body" ( image 3 ), its magnetic circuit is similar to the spiral tube magnetic circuit system or similar to the transformer magnetic circuit system.
[0027] M...
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A multistage inner rotor switch reluctance motor comprises a shell, stators, rotor cores, a shaft, a bearing, an end cover and the like. Each stator comprises a stator core and an exciting coil, wherein the stator core is provided with a plurality of pole shoes, the middle of the stator core is provided with a groove for placement of the exciting coil, and the pole shoes are arranged on the two sides of the groove in a staggered mode. The outer peripheries of the rotor cores are correspondingly provided with pole shoes the same with the stator cores in number. A set of stator and rotor cores form a unit independent magnetic circuit closed body, multiple unit independent magnetic circuit closed bodies are connected in series organically (shown in the figure 1), and the multistage switch reluctance motor is formed. When program controlled current passes through the exciting coils, a corresponding magnetic field is generated, and an independent closed magnetic circuit is formed. According to the reluctance principle, the magnetic field generates magnetic pull between the pole shoes of the stators and rotors, and the rotors are pulled to rotate. The multistage inner rotor switch reluctance motor can achieve high-power, large-torque and stepless smooth speed regulation operation. Meanwhile, the multistage inner rotor switch reluctance motor is high in efficiency, simple in structure, low in vibration and noise and convenient to produce and manufacture.
Description
technical field [0001] The invention relates to the field of rotating electric machines, in particular to a multi-stage switched reluctance electric machine. Background technique [0002] The pole shoes on the stator and rotor cores of the existing switched reluctance motor are arranged in a straight line, and the excitation coil is wound on each pole shoe of the stator core. The shoe coil is not energized, that is, only a part of the pole shoe generates a magnetic pull. After the stator pole shoe coil of such a motor is circulated through the program-controlled cycle wheel and the power is cut off, the motor is rotated by the magnetic pulling force between the stator and rotor iron core pole shoes, and the load is driven to work. [0003] The coil winding process of the motor with this structure is troublesome, and it is difficult to manufacture a high-power, high-torque switched reluctance motor. The magnetic pulling force received on the pole shoes of the stator and roto...
Claims
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IPC IPC(8): H02K16/00
CPCH02K7/20
Inventor 王国仁其他发明人请求不公开姓名
Owner 王国仁