Alternate pole hybrid excitation direct-drive vernier motor
A hybrid excitation and vernier motor technology, applied to synchronous motors with stationary armatures and rotating magnets, magnetic circuits, synchronous machines, etc., can solve the problem of reducing the utilization rate of the stator slots of the armature winding and the negative impact of the motor electromagnetic performance, etc. Problems, to achieve the effect of high-speed operation, improve space utilization, and reduce the difficulty of offline
Inactive Publication Date: 2017-05-31
SOUTHEAST UNIV
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However, the common disadvantage of the above structures is that the field winding and the armature winding are placed in the stator slot together, which reduces the utilization rate of the armature winding to the stator slot and has a negative impact on the electromagnetic performance of the motor
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[0016] The present invention will be further explained below in conjunction with the accompanying drawings.
[0017] Such as figure 1 As shown, the alternating pole hybrid excitation direct-drive vernier motor includes an outer rotor I and a stator II. Such as figure 2 As shown, the outer rotor includes an outer rotor core 1 made of laminated magnetically permeable materials, such as ten-gauge steel or silicon steel sheets. Slots of equal width are opened at equal distances on the inner side of the outer rotor core 1, and the formed outer rotor teeth are core poles 2, and radially magnetized permanent magnets 3 are embedded in the slots. The permanent magnets 3 are equal in width to the core poles 2, along the inner surface of the outer rotor The iron core poles 2 and the permanent magnets 3 arranged in a uniform array in the circumferential direction form alternating poles of the rotor. In this embodiment, 17 permanent magnets 3 and 17 core poles 2 are arranged on the out...
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The invention discloses an alternate pole hybrid excitation direct-drive vernier motor which comprises a stator and an outer rotor. The outer rotor comprises a rotor iron core and alternate poles, and the alternate poles comprise permanent magnets and iron core poles. Stator slots are peripherally uniformly formed and are open slots; an armature winding is wound on each stator tooth, and the armature windings are distributed in a centralized manner; an end of each stator tooth is divided into three regulating magnetic poles, and direct-current excitation windings which are distributed in a centralized manner sleeve the magnetic regulating poles positioned in the middles of the ends of the stator teeth and are used for adjusting air gap magnetic flux density, so that effective flux-weakening speed regulation can be carried out on the alternate pole hybrid excitation direct-drive vernier motor. Slots with equal widths are equidistantly formed in the inner side of the outer rotor iron core, the radially magnetized permanent magnets are embedded in the slots of the outer rotor, and the permanent magnets and the iron core poles are alternately arrayed on the inner surface of the outer rotor to form the alternate poles of the rotor. The alternate pole hybrid excitation direct-drive vernier motor has the advantages that the direct-current magnetic regulating windings are arranged among the magnetic regulating poles and are close to air gaps between the stator and the rotor, the rotor is provided with the alternate poles, accordingly, internal spaces of the alternate pole hybrid excitation direct-drive vernier motor can be sufficiently utilized, the air gap magnetic flux density of the stator and the rotor can be effectively regulated, and the usage of the permanent magnets can be reduced.
Description
technical field [0001] The invention relates to an alternating pole hybrid excitation direct-drive vernier motor, which is used in occasions with large motion requirements of constant power operation range. Background technique [0002] In recent years, the direct drive drive system that can save the mechanical gear transmission has become a research hotspot in the industry. Although the traditional direct drive motor has the characteristics of reducing mechanical loss, noise, and improving efficiency, it is generally large in size in order to obtain a large torque, so it is not suitable for some special requirements. [0003] The permanent magnet vernier motor based on the "magnetic gear effect" introduces the magnetic pole into the stator teeth of the permanent magnet motor to act as the magnetic ring in the magnetic gear motor, adjusts the air gap magnetic field, and modulates the magnetic field with a low speed into a high speed magnetic field. Realize self-growth. The...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K21/04H02K21/22H02K3/28H02K1/27
CPCH02K21/046H02K1/2786H02K3/28H02K21/22H02K2201/03H02K2213/03
Inventor 房淑华王海涛阳辉林鹤云秦岭李毅搏
Owner SOUTHEAST UNIV