1：What is it?
A DC electric motor is a motor that receives electrical energy in the form of direct current (DC) from a battery through a converter. It is commonly used in entry-level electric vehicles.
2：Classification
DC electric motors are classified into brushed DC motors and brushless DC motors. Brushed DC motors are less commonly used due to maintenance issues and are often replaced by brushless DC motors.
3：Advantages
Simple structure and mature technology.
Strong overload capability, able to withstand frequent impact loads.
Simple control and excellent speed control performance.
4：Disadvantages
Large size and weight, which can impact overall vehicle design.
Lower rotational speeds, making it difficult to meet the operational requirements of electric vehicles.
Requires frequent maintenance, resulting in higher maintenance costs.
5：Principle:
The structure of a DC motor consists of two main parts: the stator and the rotor. The stator, which remains stationary during motor operation, generates the magnetic field. It is composed of the motor housing, main poles, commutator segments, end caps, bearings, and brush assembly. The rotor, which rotates during operation, generates the electromagnetic torque and induced electromotive force. It is the central component for energy conversion in a DC motor and is also known as the armature. The rotor consists of the shaft, armature core, armature windings, commutator, and cooling fan.
