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怎么看出来是有刷电机还是无刷电机?

来源:http://www.jnmcd.com 发布时间:2019-04-17 浏览:
方式一:看外观,通常无刷直流电机扁平形(小功率的也有圆形的),而有刷直流电机长度大于直径。
Way 1: Looking at the appearance, the brushless DC motor is usually flat (small power or round), and the length of the brushless DC motor is larger than the diameter.
方式二:电机的引出线,无刷直流电机的转子上不需求外接电源,所以就没有引出线;而有刷直流电机是需求外加电源的,因而有两根电源线,定子上的引出线是看不出区别的。
Mode 2: The lead-out wire of the motor, the rotor of the brushless DC motor does not need external power supply, so there is no lead-out wire; and the brushless DC motor needs external power supply, so there are two power lines, the lead-out wire of the stator is not different.
方式三:查看构造,拆开电机,看见碳刷的是有刷直流电机,否则是无刷直流电机。
Mode 3: Look at the structure, remove the motor, see the carbon brush is a brushless DC motor, otherwise it is a brushless DC motor.
山东无刷电机
方式四:查看铭牌,普通消费厂家都会在电机铭牌上标示各项参数值,而且无刷直流电机与有刷直流电机表示型号是不同,可从中分别出来。如有的无刷电机表示型号开头为字母BLD,而有刷直流电机是DK表示。
Way 4: Look at the nameplate, ordinary consumer manufacturers will mark the parameters on the motor nameplate, and the brushless DC motor and brushless DC motor are different models, which can be separated. For brushless motors, the letter BLD is used at the beginning of the model, while for brushless DC motors, the letter DK is used.
除了以上这几个从外观上区别两者的方式外,我们还能够经过一些实践操作来进一步确认其中的区别。例如:
In addition to the above several ways to distinguish the two from each other in appearance, we can further confirm the difference through some practical operations. For example:
一:发电法测试,用指针式万用表接在直流电机电源线上,万用表调理到低压电压档,用手渐渐转动电机轴,假如指针不动能够加快转动,指针偏转的是有刷直流电机,反之是无刷直流电机。
One: Power generation method test, using pointer multimeter connected to the DC motor power supply line, multimeter conditioned to low voltage, gradually rotate the motor shaft by hand, if the pointer can speed up the rotation, pointer deflection is the brushless DC motor, on the contrary, the brushless DC motor.
二:察看连续工作时长,相关于有刷电机来讲,无刷直流电机的连续工作时间会较长,由于无刷电机是不需求换碳刷的;而有刷电机的碳刷在运用一段时间后会磨损,需求改换才干正常运用。所以两者在连续工作时间上相差较大。但要留意:连续工作时间的长短并不是就代表电机的运用寿命!理论的连续工作时间长,并不一定就是该电机的寿命就长!不论是无刷电机还是有刷电机,它的运用寿命决议于电机内部主要部件单薄局部的正常运用时间。比方说,假如无刷电机的绕组制造过程质量不高,用料质量差,做工粗略,那么先坏的电机是无刷电机,而不是有刷电机。
Second: Look at the continuous working time, related to the brushless motor, the continuous working time of the brushless DC motor will be longer, because the brushless motor does not need to change the carbon brush; and the carbon brush of the brushless motor will wear and tear after a period of time, so it needs to be changed before it can be used normally. So there is a big difference between the two in continuous working hours. But it should be noted that the length of continuous working hours does not mean the service life of the motor! The long continuous working time of the theory does not necessarily mean the long life of the motor. Whether a brushless motor or a brushless motor, its service life is determined by the normal operation time of the thin parts of the main parts of the motor. For example, if the winding manufacturing process of brushless motor is not high quality, the quality of materials used is poor, and the workmanship is rough, then the first bad motor is brushless motor, not brushless motor.
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