What are the differences between these 2 type motors?

Posted by Jayson shawn on

We all are not strange about the magnet plate inside of hub motor,they are necessary and are one of the key points in the electric bike motor.With the help of them electricity go through copper wires motor will rotate.


However there are two types of the magnet plate on the market not everyone is very clear or notice them:

1st is the tile type magnet plate.

2nd is the straight panel magnet plate.

Here are how they are used inside of electric bike motor.

As you can see,first one is the tile plate type and another is the straight plate type.

What are the differences?

There are two differences here i would like to discuss with you.

First is the air gap different,below is the picture as you can see the difference very easily.

The 1st is tile type plate magnet,the air gap between magnet and stator(silicion sheet) is same distance and smooth we can measure as L=δ

2nd is the straight plate magnet,the air gap between magnet and stator is not smooth and different distance,we can hardly measure the distance, we can only call as L=,there are many round space between magnet&magnet and 2 matching magnet with stator.

With the smooth distance between magnet and stator motor will running in a better condition,the starting toruqe is higher,the efficiency is higher,as well as longer using life.

Second difference is the magnetic induction lines.A tile type magnet will concentrateion induction lines and which will focus on the stator.Because the stator is tile type as well,the induction lines thus will perfectly go through the stator.To concentrate the induction lines will be much better both on motor efficiency as well as decrease the hot.The motor using life would be much longer in a healther way.

However the straight type plate magnet,the magnetic induction lines are all parallel,as you can see the induction lines will not match stator very well.Which will lead to magnetic induction lines loses,decrease the efficiency as well as rise higher temparature.

Above are the difference between two types of magnet plate.A green transportation will need a better motor to save electricity and increase efficiency.Make a better wheel.From technical,let's discuss if you have adifferent opinion about these points.


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