electric motors

With the continuous progress of science and technology, magnetic materials are more and more widely used in various fields. And in the field of electric motors, NdFeB magnets as a high-performance rare earth permanent magnet material, has an important role. This article will introduce the role and application of motor NdFeB magnets in detail. Basic Characteristics of NdFeB Magnet NdFeB magnet is a kind of rare earth permanent magnetic material composed of neodymium, iron, boron and other elements. It has high magnetic energy product, high coercivity, high remanence and other characteristics, these characteristics make NdFeB magnet in the motor can play an excellent performance. The role of motor NdFeB magnet 1. Improve the efficiency of the motor The application of motor NdFeB magnets can improve the efficiency of the motor. This is because in the operation of the motor, the strength of the magnetic field will have an impact on the efficiency of the motor. NdFeB magnets have high magnetic energy product and high coercivity, which can make the magnetic field strength of the motor has been significantly improved, so that the efficiency of the motor is also improved. 2. Enhanced motor torque The application of motor NdFeB magnets can also enhance the torque of the motor. This is because in the operation of the motor, the magnetic field strength and the size of the current will have an impact on the torque of the motor. The application of NdFeB magnets can make the magnetic field strength of the motor has been improved, but also can optimise the size of the current to improve the torque of the motor. 3. Realise the high efficiency and energy saving of the motor The application of motor NdFeB magnets can achieve high energy efficiency of the motor. This is because in the operation of the motor, if the size and timing of the current can be effectively controlled, it can make the efficiency of the motor to be further improved, but also reduce the waste of energy. And the application of NdFeB magnets can achieve precise control of the motor, which can make the efficiency of the motor be further improved.

Differences in magnetic properties. NdFeB magnets have a higher magnetic energy product and coercivity, which means they are able to produce higher magnetic field strengths and are more resistant to demagnetization. In contrast, ordinary magnets have lower magnetic properties. Stability difference. NdFeB magnets show better stability in high temperature, humidity and other environments, and are not easy to oxidize or corrode, while the performance of ordinary magnets in these conditions will decline rapidly. Applicable range difference. Due to their high magnetic properties and stability, NdFeB magnets are widely used in fields that require strong magnetic force, such as electric motors, hard disk drives, and medical imaging equipment. In contrast, ordinary magnets are typically used to attract lightweight items or low-precision electronic devices. Price Differences. Neodymium-iron-boron magnets are more costly, mainly due to their rare-earth metal composition and higher manufacturing difficulty. Ordinary magnets are relatively low cost. Processing Difficulty Differences. NdFeB magnets may exhibit brittleness during processing and require special attention to processing safety. In contrast, ordinary magnets are simpler and safer to process. Hardness Difference. NdFeB magnets are harder than regular magnets, which makes them more durable and less fragile during use. High temperature resistance difference. NdFeB magnets have better high temperature resistance than ordinary magnets and can work at higher temperatures. To summarize, compared with ordinary magnets, neodymium magnets have stronger magnetic force and longer service life, and are applicable to a wider range of fields. According to the specific application and demand, choose different kinds of magnets for application.

A stepper motor is a type of brushless synchronous DC motor that unlike many other standard types of electric motors, doesn’t just rotate continuously for an arbitrary number of spins until the DC voltage passing to it is shut off.Instead, stepper motors are a type of digital input-output device for precision starting and stopping. They’re constructed so that the current passing through it hits a series of coils arranged in phases, which can be powered on and off in quick sequence. This allows the motor to turn through a fraction of a rotation at a time - and these individual predetermined phases as what we refer to as ‘steps’. A stepper motor is designed to break up a single full rotation into a number of much smaller (and essentially equal) part rotations. For practical purposes, these can be used to instruct the stepper motor to move through set degrees or angles of rotation. The end result is that a stepper motor can be used to transfer minutely accurate movements to mechanical parts that require a high degree of precision.The stepper motors are very widely used in computer peripherals such as serial printers, floppy disc drives, etc.Another big application field for stepper motors is found in the numerical controls of machine tools and workpieces. Other applications include process control systems.facsimiles, space-crafts.watches, semi-automatic wiring machines for printed circuit boards. etc.