How does the DC fan dissipate heat?

The cooling operation steps of the DC fan:

1. The DC cooling fan is mainly composed of rotor, stator, fan blades and other auxiliary components (such as bearings//buckles, etc.). There should be many semiconductor components in the control circuit, which are now stored in one or more ICs. Some manufacturers have specially designed and manufactured many types of control motor ICs for fan circuit design and use.

However, different types of IC control circuits are different, but their main purpose is to provide effective functions of the coil and related characteristics of DC cooling fans for more effective control and protection.

2. The speed signal output from the DC cooling fan circuit is usually in the form of pulses. Each wave head means that the fan has rotated one circle. Such signals can be directly provided to the host through the data bus for display. The speed signal output by some DC cooling fans is not the real speed of the fan, but a multiple of the speed. For example, every revolution generates 2, 4, or 6 pulses, so it must be processed to form a real speed signal reflecting the fan.

If you want to distinguish whether the speed is the real speed or a multiple, you can use the tachometer to measure the actual speed and compare it with the displayed data.

3. There are two types of monitoring methods of DC cooling fan: alarm sensor and speed sensor. The alarm sensor can give an alarm signal when the fan speed is lower than a certain threshold, and the speed signal output can realize the real-time fan speed. monitor. It can be seen that the higher the air volume, the higher the heat dissipation capacity of the DC cooling fan.

This is because the heat capacity ratio of the air is constant. The larger the air volume, that is, the more air can take away more heat per unit time. The heat dissipation effect is related to the flow of the wind under the same air volume.

Shenzhen Ruiapple Electronics Co., Ltd. is a professional fan manufacturer with 20 years of R&D, production and sales experience. Main business: cooling fan, DC fan, AC fan, silent fan, centrifugal fan, blower and other full range of heat dissipation and ventilation products as an integrity enterprise, the series of cooling fan products have obtained UL, CUL, CE, CCC, ROHS, etc. International Certification.

Shenzhen Ruiapple Electronics Co., Ltd. was established in 2000. For 20 years, it has focused on R&D, manufacturing and sales of DC AXIAL FAN, AC AXIAL FAN, CENTRIFUGAL FAN, and blower ( BLOWER), AC to DC fan (EC FAN), DC motor (DC MOTOR), AC to DC (EC MOTOR) motor and other full series of cooling and ventilation products as a whole series of integrity enterprises.

Shenzhen Ruiapple Electronics Co., Ltd. has its own brand "RUIAPPLE", which is registered as a patent trademark by the government. The company passed the ISO9001-2015 system certification in the early years. The series of heat dissipation fan products have obtained UL, CUL, CE, CCC, ROHS and other international certifications.

Shenzhen Ruiapple Electronics Co., Ltd. is a professional fan manufacturer (manufacturing factory Mianyang ANPU Electric Co., Ltd. was established in 2009 and China Electronic Technology City Mianyang Economic Development Zone, Sichuan), with 20 years of R&D, production and sales experience. Our R&D, quality control and production always pay close attention to new technologies and new methods to pursue the goal of zero defects, continuously improve product quality and stability, improve products, innovate products, and lean production. Our product quality and production technology have always been in the forefront of the industry, with complete product specifications and comprehensive market competitive advantages.

Shenzhen Ruiapple Electronics Co., Ltd. has a strong R&D team, which has been dedicated to product research and development for many years, providing customers with complete heat dissipation solutions, striving for perfection, improving processes, and optimizing performance. It is targeted at consumer goods, office equipment, aerospace industry, automotive electronics, Ventilation system, machinery equipment, communication equipment and other industries conduct special research and provide products for the industry characteristics of the application of heat dissipation and ventilation products.