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Installation of the rotor magnet for the cooling fan motor

Cooling fan rotor magnet is one of the key components in the composition of the fan motor, especially in brushless DC motors and permanent magnet synchronous motors are more common, cooling fan rotor loading magnet can be manually loaded, you can also use the equipment to load, The following are specific installation methods, precautions regarding cooling fan motor rotor magnets.


1. Environmental control

When loading magnets, you should ensure that the operating environment is clean and dust-free. Because tiny particles or impurities may affect the fitting effect between the magnet and the rotor core, or even lead to uneven magnetic field distribution. Therefore, it is recommended that the magnet loading operation be carried out in a dust-free workshop or clean room.


2. Equipment Maintenance

Both embedded magnetic steel equipment and surface mounted magnet equipment require regular maintenance and upkeep. This includes cleaning, lubrication, and inspection of fasteners to ensure the accuracy and stability of the equipment. At the same time, it is also very important to regularly calibrate the equipment to ensure the accuracy and consistency of filling.


The picture shows a ferrite arc magnets with strong inner arc magnetism

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3. Personnel training

Although modern equipment has greatly simplified the complexity of magnet loading, the skills and experience of operators still have a significant impact on loading quality. Therefore, it is recommended that regular skills training and safety education be provided to operators to enable them to master the operation of the equipment, understand the precautions in the loading process, and improve the safety and standardization of operation.


4. Quality Control

In addition to the magnet testing and flux measurement mentioned above, a complete quality control system should be established to monitor and record all aspects of the loading process. For example, a loading record sheet can be established to record the loading time, quantity, personnel and other information of each batch for traceability and analysis. At the same time, regular sampling and testing of the filling quality to ensure that the product quality meets the requirements.


Very important to pay attention to the place is the arc section of the magnet pole direction to get reversed, the wrong polarity will lead to the motor can not work properly or performance degradation, you can let the magnet manufacturer to do the logo, used to distinguish the NS pole of the magnet.


At present, the main magnets for the cooling fan rotor are neodymium and high-performance ferrite. According to different application scenarios, the size, shape, and magnetic performance of the cooling fan rotor magnet can be customized to meet specific cooling needs and space limitations.


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