Before explaining the stator coils, it is necessary for us to first understand the magnetometer on the engine:

The magnetometer in a motorcycle is one of the key components of the motorcycle. It is sometimes also called a generator or an alternating current generator. This device is mainly responsible for providing power to the motorcycle and driving some important electrical systems.

The magnetometer consists of a stator and a rotor:

The rotor is a magnetic cylinder, composed of permanent magnets, which rotates at high speed with the engine's operation, generating a changing magnetic field.

The stator is a coil, formed by winding wires. When the rotor rotates, it generates an electric current through electromagnetic induction.

The stator coils of the magnetometer are usually simply referred to as the stator or the coil. They are usually made of copper wires, composite wires, or aluminum wires. They are wound around the iron core and can have different arrangements to form a complex coil system. Generally, the stator coils have two parts: a charging coil and a lighting coil.

Charging coil: A separate, thinner copper wire winding is specifically designed to provide energy for the AC igniter. It is usually covered and wrapped with masking tape. If it is a DC ignition motorcycle, the original stator does not have a charging winding.

Lighting coil: A winding made of thicker wire, which is rectified by a rectifier to supply power to the vehicle's electrical appliances, including headlights, brake lights, audio equipment, and battery charging, etc.

Now let's learn about the characteristics of the stator coils and how to distinguish the quality:

There are three types of stator coils: pure copper, copper-clad aluminum, and aluminum wire. Pure copper is of course the best, but it should also be recommended based on the customer's price tolerance. Generally, aluminum wire is not recommended, as its quality is unreliable.

All the pure copper coils have different iron cores, and their performance will also vary. There are standard iron cores, thickened iron cores, and other non-standard iron cores. The thickened iron core will make the copper wire wound less, resulting in a lower overall power.

The winding process of the coil is also an important factor affecting the quality of the product. Professional automated equipment is required to ensure product stability and consistency. When choosing a supplier, it is necessary to examine their equipment production management situation.

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