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无刷电机的基本概念是什么

来源:http://www.jnmcd.com 发布时间:2020-06-15 浏览:
  根据电机的结构和工作原理,可以将电机分为无刷电机、内转子无刷电机和外转子无刷电机。
  According to the structure and working principle of the motor, the motor can be divided into three parts: the brushless motor, the inner rotor and the outer rotor.
  电刷电机:又称直流电机或电刷电机,是目前更古老、数量更多的电机类型。电机工作时线圈和换向器在旋转,磁钢和碳刷不旋转。线圈电流方向的交流变化是由换向器和电刷与电机旋转完成的。这种电机成本较低,转矩大,结构简单,维修方便。但是,由于结构的局限性,所以缺点也更加明显:1、机械换向器产生的火花与电刷摩擦,电磁干扰,噪声大,寿命短。2. 结构复杂,可靠性差,故障多,需要经常维护。3.由于换向器的存在,限制了转子惯量的进一步下降,影响了转子的动态性能。所以在模具边界主要用于速度较慢且对振动不敏感的车模、船模以上,很少使用电刷电机。
山东无刷电机
  Brush motor: also known as DC motor or brush motor, it is the oldest and most numerous motor type at present. When the motor is working, the coil and commutator are rotating, and the magnet steel and carbon brush are not rotating. The AC change of coil current direction is completed by the rotation of commutator, brush and motor. The motor has the advantages of low cost, large torque, simple structure and convenient maintenance. However, due to the limitations of the structure, the disadvantages are more obvious: 1. The sparks generated by mechanical commutator and brush friction, electromagnetic interference, noise, short life. 2. It has complex structure, poor reliability, many faults and needs frequent maintenance. 3. Due to the existence of commutator, the further decline of rotor inertia is limited, which affects the dynamic performance of rotor. Therefore, brush motor is rarely used in the mold boundary, which is mainly used for the vehicle model and ship model with slow speed and insensitive to vibration.
  无刷电机:这是一个刷马达模具行业,除了外部使用的电机,无刷直流电机无机械电刷装置的使用,使用方波自控式永磁同步电动机,与霍尔传感器更换碳刷和换向器转子在钕铁硼永磁材料的性能有很大的优势比一般传统的直流电机。具有效率高、能耗低、噪音低、寿命长、可靠性高、采用伺服控制、无级变频调速等优点。它比毛刷昂贵,不易保养,广泛应用于航模、高速汽车模型和船模。
  BLDCM: This is a brush motor mold industry. In addition to the use of external motors, the use of mechanical brush free devices for BLDCM, the use of square wave self-control permanent magnet synchronous motor, and the replacement of carbon brushes and commutator rotors with Hall sensors in NdFeB permanent magnet materials have a great advantage over the general traditional DC motor. It has the advantages of high efficiency, low energy consumption, low noise, long service life, high reliability, servo control, stepless frequency control, etc. It is more expensive than brush, not easy to maintain, widely used in navigation model, high-speed car model and ship model.
  然而,单台无刷电机并不是一个完整的电力系统,必须由无刷控制器控制无刷电机,即电动调节,才能实现连续运行。普通无刷电机旋转与绕组,而无刷电机旋转与外部和内部的磁铁旋转。所以任何电动机都是由定子和转子组成的。
  However, a single BLDCM is not a complete power system, so the BLDCM must be controlled by the BLDCM controller, that is, electric regulation, in order to achieve continuous operation. The general BLDCM rotates with the winding, while the BLDCM rotates with the external and internal magnets. So any motor is composed of stator and rotor.
  无刷电机的定子是产生旋转磁场并支撑转子旋转的部分。主要由硅钢片、漆包线、轴承及配套部件组成。转子采用粘结钕铁硼磁铁。它是在定子旋转磁场作用下的旋转部件。它主要由转轴、磁铁和支承部件组成。此外,由定子和转子组成的极数也会影响电机的转速和转矩。
  The stator of the BLDCM is the part that generates the rotating magnetic field and supports the rotor. It is mainly composed of silicon steel sheet, enameled wire, bearing and supporting parts. The rotor adopts bonded NdFeB magnet. It is a rotating part under the action of stator rotating magnetic field. It is mainly composed of shaft, magnet and supporting parts. In addition, the number of poles composed of stator and rotor will also affect the speed and torque of the motor.
  以上是山东无刷电机小编为大家介绍的无刷电机的基本概念,想要了解更多产品信息,欢迎访问网站:http://www.jnmcd.com
  The above is the basic concept of BLDCM introduced by Shandong BLDCM. For more product information, please visit the website: http://www.jnmcd.com
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