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July 15, 2020

Application of Amorphous and Nanocrystalline Alloys in Automobile Vehicles

With the development of the automobile industry in the direction of automobile and intelligence, electric drive has become the main driving method of automobile vehicles compared with traditional mechanical drive methods. Therefore, the challenge for the development of automobile vehicles lies in the battery, electric drive and electric drive. control. In the three-electric system, a large number of magnetic materials and devices are used, such as:

1.  For battery monitoring, measurement and protection in the battery management system, magnetic materials directly affect the monitoring and measurement accuracy;

2.  The motor and inverter in the electric drive system, and the performance of magnetic materials directly determine the performance and efficiency of automobile vehicles;

3.  In the electronic control system, the dynamic performance of magnetic materials is very important for magnetic materials and devices that require multiple functions such as filtering, energy storage, voltage transformation, and measurement.

The development of automobile vehicles provides development opportunities for the development of magnetic materials and devices. In order to improve the conversion and utilization efficiency of electric energy, high energy density, high frequency and low loss can significantly improve the performance of the motor. Therefore, materials are required to have high saturation magnetic induction and low loss at high frequencies. On the other hand, the circuit design must achieve the goal of high efficiency and miniaturization, so magnetic materials are required to have excellent broadband characteristics to meet the high and low frequency requirements of electric drives; low loss to extend the cruising range; high curie temperature to improve temperature stability; common mode high impedance characteristics to meet the demanding EMC requirements of high frequency and intelligentization.

Amorphous and nanocrystalline alloys are currently the most ideal soft magnetic materials for electric vehicles

Amorphous and nanocrystalline materials have special structures and excellent comprehensive properties, especially in soft magnetic properties. Therefore, they are ideal materials for manufacturing high-performance inductors, filters, high-precision electromagnetic measurement and sensors, and high-performance electromagnetic shielding and absorbing equipment. Amorphous and nanocrystalline alloys are currently the most ideal materials for electric drive, electric control and charging systems which can provide for automobile vehicles:

1.  Products such as high frequency filter inductors, reactors and PFC;

2.  Provide EMC overall solutions for charging systems;

3.  Amorphous motor is especially suitable for automobile vehicles. It has outstanding advantages such as low current start and output large torque, high-speed torque without attenuation and high-speed energy saving.

In addition, amorphous and nanocrystalline material are widely used in power transmission and distribution, electric power, industrial power, automotive, consumer electronics, aerospace, rail transit and other fields.

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