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微型电机所用换向器材料需要哪些材料?

来源:http://www.jnmcd.com 发布时间:2019-03-31 浏览:
制造微型电机(引荐:微型电机)换向器(引荐:易顺减速器)所用的塑料, 普通有热固性塑料和热塑性塑料两种, 关于运用条件 同的各微型电机, 选择时还要思索到运用上的特殊请求, 如耐温性、耐油 性、防霉性等 等特殊性能. 最常用的热固性塑料是酚醛 玻璃纤维压塑料, 这种塑料以玻璃纤维 (紊乱的 或定向的)浸以改性的酚醛树脂 (碳酸甲醛树脂), 经枯燥后而制成的纤维塑料, 它是目前应用最广的一 种塑料, 它的特性如下:
There are two kinds of plastics used in making mini-motor commutator (recommendation: mini-motor) which are thermosetting plastics and thermoplastic plastics. When choosing the mini-motors with the same operating conditions, special requirements for application should be considered, such as temperature resistance, oil resistance, mildew resistance and so on. The most commonly used thermosetting plastics are phenolic glass fiber compression plastics. This plastic is made of glass fibre (disordered or directional) impregnated with modified phenolic resin (formaldehyde carbonate resin) and dried. It is the most widely used plastic at present. Its characteristics are as follows:
a) 冲击强度: 纤维质填料 70% 时为最高值, 若再增加填料反而使强度降低.
(a) Impact strength: 70% of the fibre filler is the highest value, if the filler is increased, the strength will be reduced.
b) 弯曲强度: 纤维质填料为 50-70% 时最大, 再大或再小都降低弯曲强度.
山东微型电机
B) Bending Strength: When the fibre filler is 50-70%, the maximum bending strength will be reduced if it is larger or smaller.
c) 紧缩强度: 填料量 40-60% 时紧缩强度最大.
C) Compression strength: when the filler content is 40-60%, the compression strength is the largest.
d) 吸水量: 随填料量增大而稍有增加.
D) Water absorption: slightly increased with the increase of filler content.
e) 电气绝缘性好.
E) Good electrical insulation.
c) 弯曲强度 23300 PSI. d) 吸水量 0.1% MAX.
C) Bending strength 23300 PSI. d) Water absorption 0.1% MAX.
e) 电气绝缘性好.
E) Good electrical insulation.
换向器的作用是:
The function of the commutator is:
l  1. 将转子各线圈抽头至换向器耳仔, 构成一个闭合回路.
1. The coil taps of the rotor are connected to the commutator ears to form a closed loop.
l  2. 与碳刷分离, 构成一个经过滑动摩擦接触面传送电流的动态传导系统. 提供电流给处于某些位置的转子线圈, 使之产生转矩旋转和在转子转动中 使处于某一位置的线圈中的电流改动方向, 以产生转矩, 使转子持续的运转, 从而使电动机输出持续的转矩动力.
L 2. Separated from the carbon brush, a dynamic conduction system is formed, which transmits current through sliding friction contact surface. The current is supplied to the rotor coil at certain position, which generates torque rotation and changes the direction of current in the coil at a certain position during rotor rotation to generate torque and make the rotor run continuously, so that the motor can output continuous torque power.
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This article is written by Shandong Micromotor. For more products and more details, please pay attention to our official website: http://www.jnmcd.com. Your patronage is a great support to us.
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