Motor rotor magnetic steel fixing structure and motor with same
A motor rotor and fixed structure technology, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit rotating parts, etc., can solve problems such as increasing the air gap between the stator and the rotor, reducing the energy efficiency output of the motor, and complicating the manufacturing process of the motor. To achieve the effect of improving effective utilization, improving reliability and simple structure
Inactive Publication Date: 2015-03-18
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Problems solved by technology
[0002] Most of the existing surface-type permanent magnet motors use adhesives to directly paste the magnetic steel on the surface of the rotor core. This fixing method has the disadvantages that the magnetic steel is not firmly fixed and is not suitable for high-speed operation.
Another method is to cast an epoxy resin layer on the periphery of the magnetic steel or wind a strip coil to fix the magnetic steel, which will cause the motor manufacturing process to be more complicated, the heat dissipation is poor, and the stator and the motor are enlarged. Defects such as air gaps between rotors reduce the energy efficiency output of the motor
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[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0032] Such as figure 1 As shown, the fixed structure of the rotor magnet of the motor mainly includes the main shaft 1, the rotor core 2, the magnet 3, the fixing collar 4 and the fixing frame 5, and the magnet 3 is arranged according to different poles along the circumference of the outer diameter of the rotor core 2. The magnetic steel groove 30 is arranged on the outer arc surface of the magnetic steel 3, and the fixed collar 4 passes through the magnetic steel groove 30 on the magnetic steel 3 and the fixed f...
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The invention provides a motor rotor magnetic steel fixing structure for reliably fixing rotor magnetic steel and a motor with the fixing structure. The motor rotor magnetic steel fixing structure comprises a rotor iron core, magnetic steels, fixing frames and fixing lantern rings, a plurality of magnetic steels are alternatively distributed on the outer surface of the rotor iron core according to different polarities, and separated from each other through the fixing frames; the magnetic steels and the fixing frames are respectively provided magnetic steel grooves and fixing frame grooves for accommodating the fixing lantern rings, and the fixing lantern rings are used for fixing the magnetic steels on the outer surface of the rotor iron core. The motor rotor magnetic steel fixing structure provided by the invention can be used for firmly fixing the magnetic steels of the motor on the surface of the rotor iron core, and the reliability of the motor is improved, the air gap between a stator and the rotor of the motor is reduced, so that the motor efficiency is prompted and the magnetic steels can be effectively utilized; and the rotor surface layer attachment is reduced by using the structure, the motor is convenient for radiating; the structure is simple, the manufacturing process can be reduced, the time is shortened, and the cost is lowered.
Description
technical field [0001] The invention relates to the field of motors, in particular to a magnetic steel fixing structure for a motor rotor. Background technique [0002] Most of the existing surface-type permanent magnet motors use adhesives to directly paste the magnets on the surface of the rotor core. This fixing method has the disadvantages that the magnets are not fixed firmly and are not suitable for high-speed operation. Another method is to cast an epoxy resin layer on the periphery of the magnetic steel or wind a strip coil to fix the magnetic steel, which will cause the motor manufacturing process to be more complicated, the heat dissipation is poor, and the stator and the motor are enlarged. Defects such as air gaps between the rotors reduce the energy efficiency output of the motor. Contents of the invention [0003] In view of this, the object of the present invention is to provide a magnetic steel fixing structure that can effectively fix the magnetic steel o...
Claims
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Login to View More IPC IPC(8): H02K1/27H02K1/28
Inventor 唐成文陈彬肖勇陈东锁
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION