Description

INGCO ED50028-SP-13, Electric Drill-Rotor( ED50028-SP-13)

product details:

The rotor, also known as the armature, is the heart of the electric motor that powers your hand drill. It’s a rotating component that interacts with the stator (stationary component) to generate torque and spin the drill chuck. Here’s a detailed breakdown of its parts and functions:

Components:

• Shaft: A central metal shaft made of high-strength steel. It provides a mounting point for the drill chuck and transmits the rotational force.
• Laminations: Stacked layers of thin, electrically conductive steel rings. These laminations are used to reduce eddy current losses, which are electrical currents induced within the rotor that can cause heat and inefficiency.
• Windings: Coils of insulated copper wire wrapped around the rotor laminations. When electricity passes through these windings, it creates a magnetic field.
• Commutator (AC drills) or Collector (DC drills): A cylindrical component made of copper segments with insulating separators. It reverses the current direction in the windings as the rotor spins, allowing for continuous rotation in AC drills. In DC drills, the collector transfers current from the brushes to the windings.
• Brushes: Spring-loaded contacts made of carbon or graphite that ride on the commutator or collector. They transfer electrical current from the power source to the windings in the rotor.

Function:

1. Magnetic Field Generation: When electricity flows through the windings, it creates a magnetic field around the rotor.
2. Interaction with Stator: The stator also has a magnetic field generated by its windings. These two magnetic fields interact, repelling and attracting each other.
3. Rotational Force: This interaction of magnetic fields creates a force that tries to rotate the rotor. As the rotor starts to spin, the commutator or collector ensures the current continues to flow in the correct direction, maintaining the magnetic field interaction and continuous rotation.