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The brushless motor adopts electronic commutation, the coil does not move, and the magnetic pole rotates. The brushless motor uses a set of electronic equipment to sense the position of the magnetic pole of the permanent magnet through the Hall element. According to this perception, the electronic circuit is used to switch the direction of the current in the coil in time to ensure that the magnetic force in the correct direction is generated to drive the motor.
Today's talk is mainly about the temperature resistance and surface coating of brushless motor magnets. Xiaobian also met many friends who asked how much temperature resistance is required for brushless motor magnets?
Answer: The magnets used in brushless motors generally choose the ones with a temperature resistance of 120-180℃. NdFeB is classified according to temperature: M (80-100°C), H (100-120°C), SH (120-150°C), UH (150-180°C), EH (180-200°C).
What is the general surface treatment method for brushless motor magnets?
The arc segment neodymium magnets used in brushless motors generally choose nickel electroplating, and some customers also choose passivation, phosphating, epoxy, etc. Bonded neodymium magnets used in brushless motors are generally black epoxy coated.
Relevant brushless motor application magnet column;
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