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The magnet in the brushless motor is installed on the rotor and is one of the important parts of the brushless motor. So what requirements does the brushless motor have for the magnet? For example, magnetic performance requirements, shape, number of poles, etc., let me introduce to you today.
Where are the brushless motor magnets located?
Magnet performance requirements for brushless motors
The brushless motor mainly uses high-performance rare earth NdFeB magnets. Because the power of the motor is closely related to the performance of the magnet, it can be basically understood that the volume and grade of the neodymium magnet determine the maximum power of the motor.
Magnet Shape Requirements for Brushless Motors
The shapes of brushless motor magnets mainly include square magnets, tile-shaped (arc) magnets, ring magnets, and bread-shaped magnets.
Advantages of square-shaped magnets: simple processing, relatively cheap price, and a good choice for motors that pursue cost.
Advantages of arc magnets: The arc can ensure that the air gap between the magnet and the silicon steel sheet is always consistent, and it seems that the power and efficiency are better than the square magnet.
Advantages of bread-shaped magnets: According to professionals, they believe that this type of magnet is more effective than arc-shaped magnets.
Ring magnet advantages: easy installation, superior performance, high-end general use ring!
Number of magnet poles required for brushless motors
Common magnet types of brushless motor magnet;
This product is a convex neodymium magnet with holes, which is a non-standard customized special-shaped magnet. It is provided by the Karich magnet manufacturer in China. You can determine the size, grade, coating, and resistance of the convex magnet according to the needs of your own products. Wen, we are very much looking forward to your inquiry....
This product is a round ceramic magnet with a diameter of 5mm and a thickness of 3mm. It is a small round magnet. It is provided by the Karich magnet manufacturer in China. It is suitable for electronic components, sensors, instruments, and electronic products. Corrosion, cheap and other characteristics....
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This is a small neodymium round magnet with 3 small holes, like the buttons on our clothes, with galvanized surface, these holes on the top of the magnet are usually used for mounting or fixing the magnet,...
Most of the epoxy magnets we have seen are black, that is, black epoxy magnets. In fact, it can also have other colors, such as gray, red, blue, green, etc. If you like this kind of magnet, please give us feedback. The size and performance grade can be customized....
This is a kind of heterosexual ferrite magnet provided by Chinese Carici magnet factory, black, the size is 13.8mm in diameter, 4.9mm in thickness, the direction of thickness magnetization, one side of the magnet has a concave point for filling glue, mainly used for magnetic clamp, customers interested in this product welcome to email to consult....
Customers from the United States, the United Kingdom, Australia, Japan, Poland and other customers are looking for ferrite cylindrical magnets. Welcome to contact the Courage magnet manufacturer. Our company is located in Dongguan, China. There are many ready-made sizes and low prices. Like the main picture...
This is a single-sided multi-pole magnetized ring magnet, only one side is magnetic, there are 4 poles on the surface, 2 N-pole, 2 S-pole, the material is injection molded ferrite, the outer diameter size of 17mm, the thickness of 4.5mm...