Applications of neodymium magnets in electric motors

The use of Neodymium Magnets in electric motors has increased considerably, especially due to the growing demand that exists with the growing market share in the global automotive market.

Forecasts dictates that by 2030, the number of electric cars is expected to swell to 250 million, a massive growth in a relatively short time.

To describe the importance of Neodymium in EV vehicles, it is first important to describe why? To start off, electric vehicle motors performs best when they are small and light, compared to traditional motors. Neodymium magnets are important due to flexibility of sizes that does not affect the general requirement of magnetic power. What I mean by this is that size could be specifically cut without losing magnetic pull force. As Neodymium Magnet is the strongest magnetic assembly in the world, it is imperative that the best quality of magnet be used to create innovative mechanic functions.

Secondly, how does Neodymium work in EV Motors? Neodymium magnets act as the immutable stator in a traditional electric motor. The rotors act as a moving electromagnetic coupling that pulls the pods along the inside of the tube. It provides the rejection power to create a circular or linear motion. Therefore, it is the perfect finished good to use in such as the high-performance motors found in electric vehicles, the use of which has increased rapidly.

Due to necessary requirements regarding high temperature, Neodymium magnets are perfect due to its high degree of coercivity as it is developed to operate at temperatures up to 220°C, with little irreversible loss. Other magnets contain low degree of coercivity, due to loss of strength if heated to more than 80°C.

With continued innovation of both neodymium magnets and the potential use, current suppliers are working with car manufacturers to seek further improved performance by evaluating developments of products that work in hand with mass production technologies.

Lastly, some other applications in EV that use Neodymium magnets:

· Electric motors for windows.

· Electric motors for windscreen wipers.

· Door closing systems.