Wenling Tongchi's automotive air-conditioning products combine four super-high functions with 'extremely quietAchieve high-efficiency heat dissipation, and conform to the trend of energy saving and environmental protection. It is equipped with intelligent frequency conversion control and current-limiting maintenance circuit, active restart function after the cooling fan is stuck, and slow start function to reduce the starting noise and improve the life of the electronic circuit. It is also certified by relevant safety regulations for users. The heat dissipation of the system is strictly controlled. The super-functional products and enthusiastic service team cannot be underestimated, and they have repeatedly appeared in the indispensable main position in the heat dissipation market. In a system, the air volume required for cooling is inversely proportional to the allowable temperature rise. By allowing the temperature rise to advance slightly, the required air volume can be greatly reduced. Therefore, if the restrictions imposed on the allowable temperature rise are slightly relaxed, the required air volume will be reduced and the noise will also be reduced. When the weight of the entire system of the DC cooling fan manufacturer is very light, or the system must be operated in accordance with a certain demarcation method, it is particularly recommended to use soft blocking devices to prevent the transmission of vibration of the cooling fan. The planning of each part of the cooling fan will affect the noise level. The following planning considerations can achieve noise reduction: the scale of the winding core, the planning of the fan blades and the outer frame, and the accurate manufacturing and balance. In some situations, when the weight of the entire system is very light, or the system must be operated in accordance with a certain demarcation method, it is particularly recommended to use soft barrier devices to prevent the transmission of fan vibration. The larger the airflow, the higher the noise. The higher the system impedance, the greater the airflow required by the DC cooling fan manufacturer for cooling. Therefore, in order to minimize noise, the system impedance must be minimized. The turbulence formed by the obstacles encountered along the air flow path will cause noise. Therefore, any prevention, especially the size of the air inlet and outlet of the tie, must be prevented to reduce noise. Since high-speed cooling fans produce more noise than low-speed fans, you should try and choose low-speed cooling fans whenever possible. And a large-scale, low-speed cooling fan is generally quieter than a small-scale, high-speed cooling fan when carrying the same air volume.