ASFN84371

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DC Fans are electromechanical devices used to generate an airflow for purposes such as cooling or ventilation. They are a sub-category of fans, and contain a motor that runs on direct current (DC), as opposed to alternating current (AC). DC fans generally have higher efficiency, longer life span, and less noise than AC fans. The ASFN84371 is a DC fan, designed for a wide range of applications and configured to meet customer needs. This article will discuss the application field and working principle of the ASFN84371.

Application Field

The ASFN84371 DC fan is designed for high-performance cooling in audio/visual, computing, lighting, medical, networking, storage, and telecommunications equipment. It is suitable for use in a variety of environments, including humidity levels up to 95%, temperatures up to 40°C (104°F), and altitudes up to 2,000 m (6,500 ft.). It can also be used in harsh industrial environments, such as those found in HVAC systems.

The ASFN84371 is a low-profile DC fan with a wide range of operating speeds. It’s capable of minimal noise levels of 25 dBA and airflow rates of 30 ± 10% CFM (cubic feet/minute). The fan can be used for high static-pressure applications, such as those in server racks, gaming consoles, and desktops. It is designed to be compatible with a wide range of power supplies, connectors, and controllers. The fan is also backward-compatible with previous versions of the ASFN84371, enabling an easy transition to the new model.

The ASFN84371 DC fan is designed to be both energy-efficient and durable. It has a service life of up to 50,000 hours at room temperature and 70,000 hours at high temperatures. In addition, it is designed with an internal temperature-sensing circuit that can be used to accurately monitor air temperatures and adjust its operating speed accordingly.

Working Principle

The ASFN84371 DC fan is powered by a DC motor, which is capable of operating at speeds ranging from 1000 to 4800 RPM. The motor is driven by a single-phase permanent magnet brushless synchronous motor, operated via a 5-pin connector. The fan contains a backward-curved impeller mounted to the front of the motor, which is responsible for generating airflow from the inlet. The impeller is designed to provide a maximum airflow rate of 30 ± 10% CFM.

The fan is capable of variable speed operation, which is controlled by proportional-integral-derivative (PID) feedback loop. This loop can be used to adjust the fan\'s speed to match environmental conditions, such as air temperature and humidity levels. This reduces power consumption, noise levels, and thermal output. The ASFN84371 features an overload protection circuit, which will automatically shut off the fan in the case of an overcurrent or overvoltage. This feature helps to ensure the fan\'s safety and protect it from damage.

In addition to variable speed operation, the ASFN84371 DC fan also features an internal lateral vibration damper. This reduces the noisy vibrations caused by the spinning impeller blade, resulting in quieter operation. The fan also contains a noise-canceling filter, which helps to reduce noise levels even further. This filter is designed to reduce background noise, such as air movement, without negatively affecting airflow.

The ASFN84371 DC fan is designed to be reliable and efficient, providing consistent performance even in extreme conditions. The fan is also designed to be cost-effective, featuring a low purchase price and minimal maintenance costs. This makes it ideal for a wide range of applications, from consumer electronics to industrial environments.

Conclusion

The ASFN84371 DC fan is a reliable and efficient cooling solution for a variety of applications. It features an internal temperature-sensing circuit that can be used to accurately monitor air temperatures and adjust its operating speed accordingly. The fan also contains a vibration damper, a noise-canceling filter, and an overload protection circuit. These features make the ASFN84371 an ideal choice for high-performance cooling and maximum efficiency.

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