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无刷电机与碳刷电机的区别是什么?

来源:http://www.jnmcd.com 发布时间:2020-06-19 浏览:

1.适用范围
1. Scope of application
无刷电机:通常被使用在控制要求比较高,转速比较高的设备上,如航模,精密仪器仪表等对电机转速控制严格,转速达到很高的设备商。
BLDCM: it is usually used in the equipment with high control requirements and high speed, such as aircraft model, precision instrument and so on, which strictly controls the motor speed and achieves high speed.
碳刷电机:通常动力设备使用的都是有刷电机,如吹风机,工厂的电动机,家用的抽油烟机等等,另外串激电机的转速也能达到很高,但是由于碳刷的磨损,使用寿命不如无刷电机。
Carbon brush motor: generally, the power equipment uses brush motor, such as blower, factory motor, household lampblack machine, etc. in addition, the speed of series motor can also reach very high, but due to the wear of carbon brush, the service life is not as good as that of non brush motor.
2.使用寿命
2. Service life
无刷电机:通常使用寿命在几万小时这个数量级,但是由于轴承的不同无刷电机使用寿命也有很大不同。
BLDCM: usually the service life is tens of thousands of hours, but the service life of BLDCM varies greatly due to different bearings.
碳刷电机:通常有刷电机的连续工作寿命在几百到1千多个小时,到达使用极限就需要更换碳刷,不然很容易造成轴承的磨损。
Carbon brush motor: generally, the continuous working life of brush motor is hundreds to more than 1000 hours. When it reaches the service limit, it needs to replace the carbon brush, otherwise it is easy to cause bearing wear.
3.使用效果
3. Application effect
无刷电机:通常是数字变频控制,可控性强,从每分钟几转,到每分钟几万转都可以很容易实现。
BLDCM: usually digital frequency conversion control, with strong controllability. It can be easily realized from several revolutions per minute to tens of thousands of revolutions per minute.
碳刷电机:无刷电机一般启动以后工作转速恒定,调速不是很容易,串激电机也能达到20000转/秒,但是使用寿命会比较短。
Carbon brush motor: generally, the working speed of the brushless motor is constant after starting, and the speed regulation is not easy. The series motor can also reach 20000 rpm, but its service life will be shorter.
4.节能方面:相对而言,无刷电机采用变频技术控制的会比串激电机节能很多,更典型的就是变频空调和冰箱。
4. In terms of energy saving: compared with series motor, the brushless motor controlled by frequency conversion technology can save a lot of energy, the most typical one is frequency conversion air conditioner and refrigerator.
5.日后维修方面,碳刷电机需要更换碳刷,如果更换不及时会造成电机的损坏,而无刷电机,使用寿命很长,通常是有刷电机的10倍以上,但是坏了就需要更换电机,但日常维护基本不需要。
5. In terms of future maintenance, the carbon brush motor needs to be replaced. If it is not replaced in time, it will cause damage to the motor. The service life of the brushless motor is very long, usually more than 10 times that of the brush motor, but if it is broken, it needs to be replaced, but the daily maintenance is basically unnecessary.
6.噪音方面与是否是有刷电机无关,主要是看轴承和点击内部组件的配合情况。
6. The noise is not related to whether there is a brush motor, but mainly depends on the coordination of the bearing and clicking on the internal components.
7.有刷电机是指电机是直流电输入,控制它的控制器只给它提供大小电流就可以调速了;而无刷电机其实就是个三相交流电机,靠控制器把直流电转换成三相交流电,并根据电机里的传感器霍尔元件进行换相使电机正常运转。直接来说,无刷电机比有刷电机寿命长、起步有劲省电,但是控制器却比有刷控制器成本高。
7. The brush motor refers to the DC input of the motor. The controller that controls it can regulate the speed only by providing it with large and small current. The brush motor is actually a three-phase AC motor, which converts the DC into three-phase AC by the controller, and changes the phase according to the sensor Hall element in the motor to make the motor operate normally. Directly speaking, the life of BLDCM is longer than that of BLDCM, the start is more powerful and power saving, but the cost of controller is higher than that of BLDCM.
目前,现在的都是无刷控制器,有刷的已经基本淘汰了。电动车控制器是用来控制电动车电机的启动、运行、进退、速度、停止以及电动车的其它电子器件的核心控制器件,它就象是电动车的大脑,是电动车上重要的部件。
At present, the current are all brushless controllers, the brush has been basically eliminated. Electric vehicle controller is the core control device used to control the start, operation, advance and retreat, speed, stop and other electronic devices of electric vehicle. It is just like the brain of electric vehicle, and it is an important part of electric vehicle.
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