The application of powerful magnets in the motor
NdFeB magnet, which has the advantages of large magnetic force, stable and long-lasting magnetic properties, smaller volume and lighter weight. If a large number of high-performance powerful magnets are used in the motor, it can generate stable magnetic field force and make the motor play more. A good function, a motor that uses such a magnet is also known as a permanent magnet motor.
Generally speaking, permanent magnet motors are divided into ferrite excitation motors and rare earth permanent magnet motors. The latter has more advantages than the former, and it is currently replacing the former as the mainstream.
A rare earth permanent magnet motor with a strong magnet has a relatively simple structure, a smaller volume, and a lighter weight, but the running performance is very reliable and stable, and the operating efficiency is also very high, and the loss of the machine is relatively It is much smaller. In terms of design, these permanent magnet motors can be designed to be more flexible and smaller in size. In the industry, such permanent magnet motors are considered to be energy-efficient products, which can save nearly 10% of the electricity in the average operating cycle, and the better the performance of the powerful magnets, the more energy can be saved.
At present, the permanent magnet motor with such a powerful magnet has a wide application range, and has been popularized in the fields of aerospace, defense, and equipment manufacturing. Even in the fields of agriculture and daily life, the motor capacity used is also involved. Sizes range from a few watts to megawatts. With the expansion of the scope of use, the status of such permanent magnet motors is becoming more and more important. The relevant national R&D departments and private independent R&D departments are investing a large amount of manpower and material resources to develop better products in this respect.