Due to its excellent physical properties, excellent chemical properties and good process properties, magnetic materials are widely used in automotive precision parts, which greatly improves the efficiency of automotive parts. Magnetic material is the core material of the driving motor of new energy vehicles. Electrification has become the development direction of the global automotive industry, and the magnetic material market has a huge space. In addition, China has the largest reserves of rare earth resources in the world. China has large reserves of rare earth resources, large output and cost and resource advantages. With the development of China’s new energy automobile industry, the high-end automotive magnetic materials and the arrival of demand outlets will become a new growth point of the industry in the future.
In the downstream consumption distribution of magnetic materials, China’s total consumption accounts for about 50%. In the global demand structure of high-performance magnetic materials, automotive accounts for 52%.
The drive motor is one of the three core components of new energy vehicles. The magnetic material is the main raw material for the stator and rotor of the drive motor. According to the data of the Ministry of industry and information technology of China, by December 2019, the installed capacity of domestic drive motors in China had reached 1.24 million, of which permanent magnet synchronous motors accounted for 99% of the market share. Permanent magnet synchronous motor is mainly composed of stator, rotor and winding, end cover and other mechanical structures. The quality and performance of magnetic materials directly determine the key indicators such as energy efficiency and stability of permanent magnet drive motor.
Automotive magnetic materials are applied to drive motors of new energy vehicles. The driving motor of new energy vehicles is a traveling electromagnetic machine operating on the principle of electromagnetic induction. It is used to convert electrical energy to mechanical energy and absorb electrical power from the electrical system during operation. Output mechanical power to mechanical system. Permanent magnet stepping back motor is mainly composed of stator, rotor and winding, end cover and other mechanical structures. Among them, the quality and performance of stator and rotor cores directly determine the value of key indicators such as energy efficiency and stability of the drive motor, accounting for 19% and 11% of the total value of permanent magnet synchronous motor respectively. Magnetic materials are mainly used in automobile motor rotors. From the material side, magnetic materials and silicon steel sheets are the key materials that determine the value of permanent magnet synchronous motor, accounting for 30% and 20% of the total cost respectively.
At present, the types of drive motors used in new energy vehicles are mainly AC asynchronous motors and permanent magnet synchronous motors. It shows an increasing trend year by year. As the power source of new energy vehicles, permanent magnet synchronous motor (PMSM) has the characteristics of high energy density, reliable operation and adjustable speed performance, compared with other types of motors. It can provide greater power output under the same mass and volume, and is an ideal motor type for new energy vehicles. Among them, Japan and South Korea adopt permanent magnet synchronous machine, and Europe adopts AC asynchronous machine. The permanent magnet synchronous motor (PMSM) has become the most widely used vending machine in China’s new energy vehicles by virtue of its high power, low energy, small size and weight.
Post time: May-30-2022