4#

1. Plastic sealed motor or block concentrated winding motor is used to improve cogging torque and efficiency. 2. The purpose of traditional embedded stator is to repaint paint. I think the main reason is that the insulation is damaged when the wire is offline, so it is vacuum dipping. Is the gap and strength second? I dismantled a domestic stator and didn't dip it in paint. Now I have another stator made in China and another stator made in An Chuan. There seems to be no sign of being dipped in paint again. We'll know when we dismantle the stator next week. 4. The stator removed in China is 8J 12C, and the stator of 12 is obviously not dipped in paint, but we used special insulating plastic and insulating tape when we went offline. 5. The number of slots can only be an integer multiple of 3. If there is a clerical error upstairs, it must be continuous punching, and I am afraid that I will be spelled. When entering the casing, the stator inner circle is not round, the concentricity and rotor shaft are not good, and the high-speed hall sweeping is not good. I don't know how to solve this problem technically. What kind of fixture should be made to ensure that the stator enters the casing together?