Two questions about DC motors
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I’m just starting to learn about the structure of electric motors, and there are two things I don’t understand: 1. When two windings are placed in the same stator slot, how is insulation achieved? The model is shown in Figure 1. 2. How is the number of brushes determined? I saw a statement saying that since there are two main magnetic poles, there are two brush sets, with each brush set consisting of two brushes. The model is shown in Figure 2: http://www.pengky.cn/dianji*lie022/2-kjdh-zhiliujimo*ng/zhiliujimo*ng06.jpg http://www.pengky.cn/dianji*lie022/3-kjdh-zhiliujijiegou/zhiliujijiegou08.jpg
1. No special treatment is generally applied to the insulation between the electromagnetic wires in the slot, as the insulation of these wires has a certain voltage resistance. (The paint film of ordinary polyester enameled wire can withstand a voltage of over 100 volts.) 2. The number of brushes is generally consistent with the number of pole pairs.
2nd floor: Why must the number of brushes be equal to the number of pole pairs? 2# Thunder God