Through this period of understanding, I believe that everyone is no stranger to high-power DC motors, but for customers who want to know more about this product, these contents are not enough. Today, Xiaobian will share the knowledge about magnetization of high-power DC motors with everyone, hoping to attract everyone's attention and let everyone have a deep understanding of high-power DC motors. In this way, everyone can know what to buy when using high-power DC motors. Don't panic, I hope to inspire and help everyone. 中，换向器配以电刷，能将外加直流电源转换为电枢线圈中的交变电流，使电磁转矩的方向恒定不变，是目前使用广泛的一种电机，那么，它是如何进行充磁的呢？ In high-power DC motors
, the commutator is equipped with brushes, which can convert the external DC power into the alternating current in the armature coil, so that the direction of the electromagnetic torque is constant. It is a widely used motor at present. So how does it magnetize? Let's take a look:
Different applications require different performances, and different performances depend on the electromagnetic structure parameters inside the motor. In terms of magnetic parameters, different air-gap magnetic field distribution shapes are required. For high-power DC motors for pure output driving, their performance High output power and efficiency are required, so the air-gap magnetic field distribution in this type of motor should use a flat top wave equal to or slightly larger than 2/3 pole pitch, so as to provide as much magnetic flux as possible and make the motor have a large electromagnetic torque. .
For another example, for high-power DC motors with low vibration, low noise and small sparks, but with low output power and efficiency requirements, the internal air gap magnetic field distribution should use a flat top wave or sine wave with less than 1/3 pole pitch. To ensure the suitability of such motors. The desire to obtain air-gap magnetic field waveforms with different distribution shapes is not only related to the rational design of the magnetic structure shape and the selection of the magnetic orientation of the magnet, but also to the magnetization method of the magnet, that is, the design of the magnetization technology.
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