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How do DC Motors Work?

How do DC Motors Work?

2024-09-26
A ring-shaped permanent magnet is fixed in the DC motor, and the current passes through the coil on the rotor to generate an ampere force. When the coil on the rotor is parallel to the magnetic field, the direction of the magnetic field will change if it conti...
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When the 3 phase motor torque becomes large, will speed be slow?

When the 3 phase motor torque becomes large, will speed be slow?

2024-09-25
For the same power of the 3 phase motor, when the torque of the motor is small, the corresponding speed should be fast; When the torque of the motor is large, the corresponding speed is slow. As for the relationship between the two, we used to communicate theo...
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What are the possible effects of compressor motor current overload?

What are the possible effects of compressor motor current overload?

2024-09-24
Compressor motor current overload is a common but serious problem that can cause a range of adverse effects on a refrigeration or air conditioning system. I will discuss these effects in detail and explore how to effectively deal with this problem. First, let...
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Analysis of cold shut and resistance out-of-tolerance of cast aluminum rotor

Analysis of cold shut and resistance out-of-tolerance of cast aluminum rotor

2024-09-23

In batch production, we often encounter this situation: sometimes different defects appear due to seemingly the same cause, and sometimes the same defect occurs due to different causes. 

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The influence of motor back electromotive force on motor performance

The influence of motor back electromotive force on motor performance

2024-09-20

Back electromotive force is generated by opposing the tendency of the current in the winding to change. Back electromotive force is generated in the following situations: (1) when an alternating current is passed through the coil;

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Why is the power supply connected to the stator of the motor?

Why is the power supply connected to the stator of the motor?

2024-09-19

The characteristics of motor products are the relative stillness of the stator and the relative movement of the rotor during operation. Usually, we use the relatively still parts as the input or output of the power supply.

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The key to selecting vertical motor bearings

The key to selecting vertical motor bearings

2024-09-18

Deep groove ball bearings cannot bear heavy axial loads, so angular contact ball bearings (also known as thrust bearings) are mainly used as locating bearings in vertical motors.

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Commonly used annealing and quenching processes for motors

Commonly used annealing and quenching processes for motors

2024-09-14

In the production and manufacturing process of motors, in order to obtain some performance advantages of certain parts, thermal treatment processes are sometimes used. Different materials, different parts, 

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The relationship between variable frequency motor technology and asynchronous motor improvement

The relationship between variable frequency motor technology and asynchronous motor improvement

2024-09-13

If you have had the opportunity to participate in the test of motors, you may have a deeper understanding of frequency conversion technology. Especially those who have experienced old test equipment can better feel the advantages of frequency conversion technology.

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How much does bearing selection depend on motor load?

How much does bearing selection depend on motor load?

2024-09-12

As for the bearings of motors, whether we are motor manufacturers or motor users, we all know that for heavy-loaded motors, cylindrical roller bearings will be used at the shaft extension end of the motor, and for particularl

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