Magnetic materials are widely used in fields such as new-energy vehicles and charging stations, smart homes and intelligent appliances, and communication power supplies.
In the field of new-energy vehicles, magnetic materials are ubiquitous—particularly permanent magnets and soft magnetic materials, which have already become a critical cornerstone supporting the growth of the industry.
In the field of new-energy vehicles, magnetic materials are ubiquitous—especially permanent magnet materials and soft magnetic materials, which have already become a critical cornerstone supporting the growth of this industry. Represented by neodymium-iron-boron (NdFeB) permanent magnets, these materials stand out due to their exceptional properties, such as high remanence and high coercivity. As a result, they play a pivotal role in the drive motors of new-energy vehicles, significantly boosting motor efficiency while minimizing energy losses. According to relevant data, each new-energy vehicle typically requires about 2.5 kg of NdFeB permanent magnet material. Moreover, permanent magnets are also widely used in other automotive components, such as the Anti-lock Braking System (ABS) and Electric Power Steering (EPS). For instance, in ABS systems, permanent magnets are integrated into sensors that precisely monitor wheel speed and slip rate, enabling the system to effectively regulate braking force and prevent wheel lockup—thus ensuring safer driving conditions. Meanwhile, in EPS systems, permanent magnets assist both the motor and sensors, making steering operations smoother, more precise, and responsive. Additionally, they allow the system to automatically adjust the level of power assistance based on factors like vehicle speed, further enhancing driving comfort and safety.
In the onboard electronic devices of new-energy vehicles, permanent magnet materials are equally indispensable. Car speakers utilize permanent magnet materials to create a magnetic circuit system, generating a stable magnetic field that causes the voice coil to vibrate and produce sound. Compared to traditional electromagnetic speakers, this design offers significant advantages such as superior sound quality, smaller size, and lighter weight. Additionally, various sensors—like position sensors, speed sensors, and temperature sensors—also commonly rely on permanent magnet materials. These sensors precisely monitor key vehicle parameters and transmit signals to the control systems, playing a crucial role in advancing the automotive industry's drive toward greater intelligence.
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