NingBo BeiLun Meank Magnetics Co., Ltd
NingBo BeiLun Meank Magnetics Co., Ltd

Application of Neodymium Cube Magnets in the Automotive Electronics Industry

Neodymium cube magnets are key components in automotive electronic technology, widely used in safety and information systems, electronic control units, in-car multimedia systems, energy transmission systems, etc.

As new energy vehicles and autonomous driving technology develop, various safety control systems such as safety driving assistance system and collision prediction system will be developed and widely applied. The global automotive electronics industry is entering a golden period of development.

In this market, innovation is highly valued, and new products and applications are constantly emerging, changing the overall appearance of the automobile thanks to automotive electronics technology.

The magnetic components mainly used in automotive electronic technology are neodymium cube magnets, soft ferrite materials, and metal soft magnetic materials.

With the development of automotive lightweighting, intelligence and electrification, the requirements for magnetic materials are also increasing. High-performance neodymium iron boron is mainly used in EPS and micro motors in traditional vehicles.

Permanent magnet neodymium segment magnets material in EPS power-assisted motor

EPS requires high performance, light weight and small volume for permanent motors, so the permanent magnet materials used in EPS are mainly high-performance Nd-Fe-B magnets, which are mainly sintered Nd-Fe-B magnets.

In the EPS system, hot-pressed neodymium iron boron is expected to replace sintered neodymium iron boron. This is because hot-pressed neodymium iron boron has high magnetic performance and can only be made into a ring, with a high yield rate.

Micro motor replacement of ferrite magnets with huge space by neodymium segment magnets

Micro motors are widely used in automobiles. In addition to the starter for starting the car engine, the other motors distributed throughout the car are miniature motors. Previously, automotive micro motors were only used as power sources for components such as windshield wipers, windshield washer, electric oil pump, and automatic antenna, with a relatively small number.

Today, as automobiles pursue comfort and automatic control, micro motors have become an indispensable part of modern cars. These include sunroof motors, seat adjustment motors, seatbelt motors, electric antenna motors, starter motors, shutter cleaning motors, air conditioning fan motors, top lamp motors, air conditioning motors, steering linkage fog lamp motors, electric water pumps, electric oil pumps, electronic air conditioning, speakers, sensors (position, speed, pressure, etc.).

According to estimates in the automotive industry, each luxury car should be equipped with around 100 micro motors, at least 60 of which are for high-end cars and at least 20 for economy cars.

Currently, bonded neodymium iron boron magnets are mainly used in micro motors and sensors in mid-to-high-end cars. As cars move towards comfort, energy-saving, and automation, the use of bonded neodymium cube magnets in automotive motors will become more and more popular.

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