永磁直流电机是用永磁体建立磁场的一种直流电机。永磁直流电机广泛应用于各种便携式的电子设备或器具中，如录音机、VCD机、电唱机、电动按摩器及各种玩具，也广泛应用于汽车、摩托车、电动自行车、蓄电池车、船舶、航空、机械等行业，在一些高精尖产品中也有广泛应用，如录像机、复印机、照相机、手机、精密机床、银行点钞机、捆钞机等。

2014/08/08

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直流电机的特点及应用

直流电动机显示出交流电动机所不能比拟的良好的启动性能和调速性能，具有宽广的调速范围，平滑的无级调速特性，可实现频繁的无级快速启动、制动和反转；过载能力大，能承受频繁的冲击负载；能满足自动化生产系统中各种特殊运行的要求。

2014/08/07

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Characteristics and Application of DC Motor

DC motor shows AC motor can not match the good start performance and speed performance

2014/08/07

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电机修理知识——低转速时的冷却问题

目前中小型变频器，不少是采用PWM的控制方式。它的载波频率约为几千到十几千赫，这就使得电动机定子绕组要承受很高的电压上升率，相当于对电动机施加陡度很大的冲击电压，使电动机的匝间绝缘承受较为严酷的考验。

2014/08/06

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Motor Repair Knowledge - Cooling Problems at Low Speed

Ordinary asynchronous motor inverter power supply, will make the electromagnetic, mechanical

2014/08/06

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电动自行车电机故障的检修

电机的故障有机械故障与电气故障两大类，机械故障比较容易发现，而电气故障就要通过测量其电压或电流进行分析判断了。我们现在介绍电机常见故障的检测与排除方法。

2014/08/01

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Electric bike repair motor failure

Motor failure mechanical failure and electrical failure of two categories, mechanical failure is relatively easy to find

2014/08/01

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Avoid 6 motor maintenance burned in the technical maintenance measures

In the operation of the motor to avoid burning, in addition to the operation before taking the necessary technical protection measures, the most effective and practical way to prevent the correct tech

2014/07/31

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Permanent magnet DC motor used in what places

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