D.C MotorModify Date : 2018-11-22 14:18:31

It is composed of permanent magnet as stator and coil as rotor (armature). It converts the direction of current flowing in the armature to generate rotational force by repulsion of magnetic force and suction force. Starting torque, linear rotation characteristics against voltage changes, and thrust efficiency are good.
 

Classification of DC Motor

1.Shunt Motor

Decentralized motors are motors in which the armature windings and the field windings are connected in parallel and have a constant speed characteristic and are motors with little change in load. This motor is suitable for alternator input and precision machine driving requiring constant frequency.

2.Series Motor

A series winding motor is a motor in which the armature winding and the field winding are connected in series. The load current and the field current are the same, so when the load current decreases, the field current decreases and the speed increases. This series motor is a motor with a static power characteristic, suitable for heavy-duty operation and used in electric locomotives.

3.Compound Motor

The lottery motor is a motor with decentralized and series quantum windings that has the intermediate characteristics of a decentralized motor and a series motor. Differential lottery motors are rarely used except for special conditions, and Huadong lottery motors are widely used today. Hwadong lottery motors are used to drive all industrial machines by coordinating the excitation current according to the load fluctuations. The speed is slightly slower at heavy loads and slightly faster at light loads.

4.Separately Excited Motor

Other excitation motors are used separately for armature windings and field windings and are used for decentralized and lottery motors. Previous motors can perform voltage control and field current control separately or simultaneously, enabling a wide range of speed control and are widely used in industrial machine tools. In addition, the motor can be freely adjusted for voltage control and field control, enabling constant torque control and constant output control.

DC motor features

High reliability

The electric circuit which is the life of DC motor is made of class F and heat-resistant insulation material. It is rich in temperature resistance, oil resistance, chemical resistance and shockproof by vacuum impregnating the armature and field coil with special epoxy, and it has high reliability by adopting effective ventilation cooling method. Long life is guaranteed.

Improved control response performance

By using high heat-resistance class H insulation material, the armature diameter can be made small, resulting in better control response as GD2 (Inertia Efficiency) is added.

Improvement of rectification performance

Ideally designed armature slot and pole to obtain good rectification effect under the power of THYRISTOR, and it is designed to be suitable for harsh operating conditions by showing stable transient rectification even under rapid acceleration / deceleration, forward and reverse operation, and load sudden change. It is. In addition, the commutator uses silver copper material, and the brush material determined by long experience and research and development has good sliding characteristics and abrasion resistance, and the brush holder adopts the quartz pressure spring method, which significantly extends the life of the brush.

Maintenance and Inspection

The commutator side bracket is a through-winding type, so it is easy to deform the structure, and the inspection window of the brush and commutator is large enough for easy maintenance and inspection. In addition, it is easy to check the commutation status without opening the commutator inspection cover. The mounting position of the terminal box with a spinning structure is mounted on the right side from the commutator side for easy wiring and inspection work.

Low price and delivery guarantee

Thanks to the constant research and development of our own technicians and the introduction of the latest mechanical equipment and advanced technologies such as computer systems, we have a mass production system and repay our supporters with prompt delivery and low prices.