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山东无刷电机的选型在乎的是哪些方面?

来源:http://www.jnmcd.com 发布时间:2019-05-29 浏览:
无刷电机的本钱主要在驱动板,因而单相的价钱远比三相的要低。外转子无刷电机只所以廉价,主要是外转子电机能够运用单相驱动。单相的优势是价钱低,缺陷是扭力小,功率低。单相外转子要做到三相相同的扭力,电机的尺寸要做大。一些对扭力请求不高的场所,比方带动扇叶等,用外转子就足够了。
The cost of brushless motor is mainly in the drive board, so the price of single-phase is much lower than that of three-phase. External rotor brushless motor is cheap, mainly because it can be driven by single-phase. The advantage of single phase is low price, but the disadvantage is low torque and low power. To achieve the same three-phase torsion of single-phase external rotor, the size of the motor should be large. In some places where the requirement for torsion is not high, such as driving the fan blade, it is enough to use the external rotor.
内转子无刷电机的价钱高,其转速快,扭力大。比方车载吸尘器的无刷电机运用的是内转子,其转速高达三万多转!内转子通常是三相的,但是内转子的产能低,内转子绕线方式比外转子复杂,产能要低的多,大批量消费考验工厂的产能。内转子无刷电机价钱普通都是数十元一台,功率大的价钱更高,普通高端场所才干运用。
Inner rotor brushless motor has high price, fast speed and high torque. For example, the brushless motor of the vehicle vacuum cleaner uses the inner rotor, and its speed is as high as 30,000 revolutions! The inner rotor is usually three-phase, but its output is low. The winding mode of the inner rotor is more complex than that of the outer rotor. The output of the inner rotor is much lower than that of the outer rotor. Large-scale consumption tests the production capacity of the factory. The price of inner rotor brushless motor is usually tens of yuan a set, the price of high power is higher, ordinary high-end places can use.
山东无刷电机
再说说无刷减速电机。无刷电机目前以小功率为主,大功率的超越1千瓦的无刷电机的价钱很高。因而,在大扭力的条件下,普通的无刷电机通常加上要加上减速箱运用,此时,减速箱成了短板。性能好的减速箱,如行星减速箱价钱很高,其寿命能够到达8千小时,而普通的减速箱价钱低,但是寿命只要2000小时。那种以为无刷减速电机的寿命高达数万小时的观念,是疏忽了减速箱的短板。碳刷电机带减速箱的价钱通常只需十几元,但是运用寿命只要几十小时到数百小时。无刷电机带行星减速箱,价钱在一百几十元一台,运用寿命进步了十几倍,但是本钱也增加了十倍!一台行星减速箱的价钱都要60元以上了。用无刷电机配普通减速箱,价钱明显要低很多,但是个人觉得有点糜费电机的性能。
Besides, brushless speed reduction motor. At present, brushless motors are mainly low-power, and high-power brushless motors over 1 kilowatt cost a lot. Therefore, under the condition of large torsion, the ordinary brushless motor is usually used with a reducer, at this time, the reducer becomes a short plate. Good performance gearboxes, such as planetary gearboxes, cost a lot of money, and their life can reach 8,000 hours, while ordinary gearboxes cost less, but their life is only 2,000 hours. The idea that the life of the brushless speed reducer is tens of thousands of hours is to neglect the short plate of the gear reducer. Carbon brush motor with reducer usually costs only a dozen yuan, but the service life is only tens of hours to hundreds of hours. Brushless motor with planetary gear reducer, the price is more than a hundred yuan a set, the use of life has improved more than ten times, but the cost has also increased ten times! A planetary gearbox costs more than 60 yuan. Using brushless motor with ordinary reducer, the price is obviously much lower, but I feel a little wasteful of motor performance.
关于请求转速很低和转动能够准确控制的,不倡议运用普通无刷电机。这时能够选用步进电机。步进电机是无刷电机的一种,也需求驱动。微型步进电机价钱低,但是扭力也低,当然转角能够准确控制,微型步进电机由于扭力太低,通常配合减速箱运用。大功率的步进电机价钱高。
As for the request speed is very low and the rotation can be accurately controlled, it is not advisable to use ordinary brushless motor. Stepper motor can be selected at this time. Stepping motor is a kind of brushless motor, and also needs to be driven. Miniature stepper motors are inexpensive, but also have low torsion. Of course, the angle can be accurately controlled. Because of the low torsion, miniature stepper motors are usually used with reducer. High-power stepper motors are expensive.
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