Magnetizing device and radial magnetizing method of permanent magnet motor arc-shaped magnetic shoe
A technology for magnetizing devices and permanent magnet motors, applied in the direction of electromechanical devices, manufacturing motor generators, circuits, etc., to achieve the effects of large magnetic force line paths, improved motor performance, and high magnetization efficiency
Active Publication Date: 2021-03-02
SUMEC HARDWARE & TOOLS
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Problems solved by technology
Therefore, in practical applications, if the motor magnetic tiles with thickness magnetization can be replaced with radial magnetization tiles, the performance of the motor will be improved. However, the production efficiency of radial magnetization has always been a problem in practical applications. Constraints of the magnetic method
Method used
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Embodiment
[0032] like figure 1 In the shown embodiment, the magnetizing device includes an inner magnetic pole 2, an outer magnetic pole 3, a yoke ring 4, an exciting coil 5, a magnetizing power supply 7, and a cylinder 6 respectively arranged corresponding to each outer magnetic pole, and the free end of the cylinder piston rod faces The outer magnetic pole is capable of driving the outer magnetic pole to move toward the end of the inner magnetic pole.
[0033] The air cylinder is located outside the yoke ring, and the end of the outer magnetic pole away from the inner magnetic pole is connected to the inner ring of the yoke ring. When the piston rod of the cylinder is extended, it directly pushes the yoke ring of the section connected by the outer magnetic pole, and then drives the outer magnetic pole inside the yoke ring to move to the magnetization space, so that the outer magnetic pole, the magnetic tile and the inner magnetic pole can be connected to each other during magnetizati...
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The invention provides a magnetizing device and a radial magnetizing method for an arc-shaped magnetic shoe of a permanent magnet motor. The magnetizing device comprises an inner magnetic pole, an outer magnetic pole, a magnet yoke ring, an exciting coil and a magnetizing power supply; the inner magnetic pole comprises a cylindrical middle part, the exciting coil is wound on the periphery of the cylindrical middle part of the inner magnetic pole, and two ends of the exciting coil are electrically connected with the magnetizing power supply; two ends of the inner magnetic pole respectively faceone outer magnetic pole, and a magnetizing space for placing a magnetic shoe to be magnetized is arranged between the end surface of the inner magnetic pole and the opposite end surface of the outermagnetic pole; one end, deviating from the inner magnetic pole, of the outer magnetic pole is connected with the magnet yoke ring. During magnetizing, the magnetic shoe is placed in the magnetizing space and attached to the outer magnetic pole and the inner magnetic pole, a strong excitation magnetic field can be generated by starting the magnetizing power source to discharge instantly, and magnetizing is completed. According to the invention, radial magnetization can be conveniently carried out on the arc-shaped magnetic shoe, so that the motor magnetic shoe after subassembly can provide a magnetic field with more reasonable distribution in a motor air gap, and the motor performance is improved.
Description
technical field [0001] The invention relates to the technical field of processing and manufacturing permanent magnet motors and parts thereof, in particular to a magnetizing device and a radial magnetizing method for arc-shaped magnetic tiles of permanent magnet motors. Background technique [0002] In permanent magnet motors, the magnetization method generally has thickness magnetization (see Figure 5 ), radial magnetization (see Image 6 ) and axial magnetization, among which axial magnetization is rarely used in motors, and thickness magnetization is relatively simple. The magnetic sheets or magnetic tiles are stacked together, and the sheets are separated by plastic plates. Wrap it into a long strip, put it into the magnetizing tunnel of the magnetizer, and the magnetizer will discharge instantly. Compared with radial magnetization, it is relatively cumbersome. Basically, it is assembled into parts for overall magnetization, and the production efficiency is low. [00...
Claims
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IPC IPC(8): H02K15/03H01F13/00
CPCH02K15/03H01F13/003
Inventor 刘楷林有余周建辉汪洋陈伟
Owner SUMEC HARDWARE & TOOLS