In a high temperature environment, we sometimes encounter the problem that the cooling fan cannot run, which poses a certain threat to the heat dissipation performance and stability of the device. We Chungfo as a more than ten years of experience in the ac exhaust fan wholesale manufacturers will lead you to explore the cooling fan in the high temperature environment can not operate several possible reasons.

1.Overheating protection: Many double ball bearing exhaust fans have overheating protection. That is to say, when the ambient temperature exceeds the fan's tolerance range, the fan will stop running to prevent overheating damage.

2.Lubricating oil failure: under high temperature environment, the lubrication effect of lubricating oil will be greatly reduced, which leads to the bearing wear of some high rpm exhaust fans, and the fan will stop operating at any time.

3.Thermal expansion and cold contraction lead to deformation: The plastic parts of the brushless exhaust fan will produce thermal expansion and cold contraction in a high temperature environment, resulting in component deformation and affecting the normal operation of the fan.

4. Frequency regulation: In high temperature environments, some bldc exhaust fans may control the temperature by reducing the operating frequency. This means that their rotational speed slows down, which reduces heat dissipation. If the temperature is too high, the fan may stop running to protect itself.

If you have the need to buy high quality mini axial cooling exhaust fans, please feel free to contact us!

Overlapping design refers to optimizing the space layout of the fan blades or multiple fan modules to overlap the air flow paths of multiple fans to improve the air flow or heat dissipation effect. This design is suitable for equipment that requires efficient heat dissipation, especially in the case of limited space can significantly improve cooling efficiency.

Chungfo Electronics focuses on manufacturing a variety of efficient cooling fans, although our fans do not currently use overlapping blade design, but we use advanced materials and technologies, such as metal cross flow fan, bldc exhaust fan, plastic centrifugal fan, to ensure that the product in a long time to maintain efficient and stable heat dissipation capacity. Our 110V and 220V cooling fans perform well in industrial, domestic and electronic devices.