ac universal motor principle
Single-phase universal motor are commonly known as ac universal motor or general-purpose, and are named after the exciting windings and the exciting windings work in series. The single-phase universal motor is an AC and DC motor. It can work with AC power or DC power.
The single-phase universal motor has high speed, small size, light weight and convenient speed regulation, so it is used as a power source in most power tools. However, the single-phase universal motor used in the power tool starts frequently, the rotation speed is high, the vibration is large, the load is uneven, and it is easy to block and the armature temperature rise is sharply increased. Because of these characteristics, the single-phase universal motor has high requirements in terms of manufacturing quality. The single-phase universal motor is mainly composed of three parts: the stator, the armature and the casing, and has the highest requirements on the armature.
ac universal motor is a motor that is connected in series by a rotor winding and a stator winding. Once the two windings are fixed in series, the direction of rotation of the motor is fixed. The series motor can operate normally in both AC and DC modes, and the motor speed of this excitation mode is very high.
Main purpose of ac universal motor
The universal motor is widely used in power tools, kitchen supplies and floor care products due to its wide adjustable speed range and large starting torque.
