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无刷直流电机与有刷电机怎么区分?

来源:http://www.jnmcd.com 发布时间:2019-01-22 浏览:
无刷直流电机与有刷电机在外形、形状上长着十分的相似,不仔细区分的话,很有可能出乱子。那么,如何从外观上区别是无刷直流电机仍是有刷直流电机呢?小编教你以下几招:
Brushless DC motor and brushless motor are very similar in shape and shape. If they are not carefully distinguished, they may cause trouble. So, how to distinguish from the appearance is the brushless DC motor or the brushless DC motor? Xiaobian teaches you the following tactics:
方法一:看外观,一般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。
Method 1: Looking at the appearance, the brushless DC motor is generally flat (small power or circular), and the length of the brushless DC motor is larger than the diameter.
方法二:电机的引出线,无刷直流电机的转子上不需要外接电源,所以就没有引出线;而有刷直流电机是需要外加电源的,因此有两根电源线,定子上的引出线是看不出区别的。
Method 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 can not be distinguished.
方法三:检查结构,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。
Method 3: Check the structure, remove the motor, see the carbon brush is a brushless DC motor, otherwise it is a brushless DC motor.
方法四:检查铭牌,一般生产厂家都会在电机铭牌上标示各项参数值,并且无刷直流电机与有刷直流电机表示型号是不同,可从平分别出来。如藤尺的无刷电机表示型号最初为字母BLD,而有刷直流电机是DK表示。
Method 4: Check the nameplate. Generally, the manufacturer will mark the parameters on the motor nameplate, and the model of brushless DC motor is different from that of brushless DC motor, which can be separated from the level. For example, the brushless motor of rattan ruler is initially represented by the letter BLD, while the brushless DC motor is represented by DK.
除了以上这几个从外观上区别两者的方法外,我们还能够经过一些实际操作来进一步承认其中的区别。例如:
In addition to the above methods of distinguishing the two from each other in appearance, we can go through some practical operations to further recognize the difference. 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,用手慢慢滚动电机轴,假如指针不动能够加速滚动,指针偏转的是有刷直流电机,反之是无刷直流电机。
One: Generation method test, using pointer multimeter connected to DC motor power supply line, multimeter adjusted to low voltage, slowly rolling motor shaft with hand, if the pointer can accelerate the rolling, pointer deflection is brushless DC motor, and vice versa is brushless DC motor.
二:观察接连作业时长,相对于有刷电机来讲,无刷直流电机的接连作业时间会较长,由于无刷电机是不需要换碳刷的;而有刷电机的碳刷在运用一段时间后会磨损,需要更换才能正常运用。
Second: Observing the continuous operation time, compared with the brushless motor, the brushless DC motor will have a longer connection operation time, because the brushless motor does not need to replace the carbon brush; and the carbon brush with the brush motor will wear out after a period of time, and need to be replaced in order to operate normally.
所以两者在接连作业时间上相差较大,但要留意:接连作业时间的长短并不是就代表电机的运用寿命!理论的接连作业时间长,并不一定就是该电机的寿命就长!不管是无刷电机仍是有刷电机,它的运用寿命决定于电机内部主要部件最薄弱部分的正常运用时间。
So there is a big difference between them in continuous operation time, but we should pay attention to: the length of continuous operation time does not mean the service life of the motor! The theory of long continuous operation time does not necessarily mean the long service life of the motor! Whether the brushless motor or the brushless motor, its service life depends on the normal operation time of the weakest part of the main parts of the motor.
比如说,假如无刷电机的绕组制造进程质量不高,用料质量差,做工粗略,那么最先坏的电机是无刷电机,而不是有刷电机。
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 worst motor is brushless motor, not brushless motor.
以上信息是我们山东微型电机整理发布希望对大家有所帮助我们的网站是:http://www.jnmcd.com
The above information is our Shandong micro-motor sorting and publishing hope to help you all on our website is: http://www.jnmcd.com!
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