DC Fans

DC fans is a type of cooling fan commonly used to cool electronic equipment and components in a wide range of applications. They are usually powered by DC motors and stand in contrast to traditional AC fans which rely on alternating current. There are a variety of DC fans, each type having its own areas of use and applications. This article focuses on the 9CRB0412P5S201 DC fan, its application fields and working principle.

What is a 9CRB0412P5S201 DC Fan?

The 9CRB0412P5S201 DC fan is a permanent magnet brushless DC cooling fan that is primarily used in industrial and automotive applications. It is a 40mm x 40mm x 28mm fan with a side mounted 12V brushless DC motor. It is equipped with two-speed operation via a Pulse Width Modulated (PWM) signal and uses a brushless fourth winding motor with a sine wave drive. The fan has been designed to be both reliable and stylish and can be used in a variety of applications.

Application Fields

The 9CRB0412P5S201 DC fan is primarily used in industrial and automotive applications. It is often used in machines and devices that require cooling and ventilation, such as medical and laboratory equipment, computer servers, air conditioners, and automotive components. In automotive applications, the fan is used to cool engine components such as radiators, oil coolers, alternators, and air conditioning systems. In industrial applications, the fan is used to cool electric motors, servo drives, pumps, and other industrial machinery.

Working Principle

The 9CRB0412P5S201 DC fan is powered by a 12V brushless DC motor that uses a sine wave drive. The motor is equipped with a rotor that has two electromagnets which are perpendicular to each other. When voltage is applied to one of the electromagnets, it causes the rotor to rotate in one direction and when voltage is applied to the other electromagnet, it causes the rotor to rotate in the opposite direction. The rate at which the rotor rotates is determined by the frequency at which the voltage is applied. The fan also utilizes Pulse Width Modulation (PWM) signaling which allows the speed of the motor to be controlled.

The 9CRB0412P5S201 DC fan works by drawing in outside air through the fan blades and pushing it out the other side. As the fan blades rotate, they create an area of low pressure inside the fan housing which causes the air to be drawn into the fan. As the air is drawn in, it is then pushed out by the rotating blades and the air pressure is increased. By changing the speed of the blades, the speed of the airflow can be adjusted.

Conclusion

The 9CRB0412P5S201 DC fan is a reliable and stylish fan that is primarily used in industrial and automotive applications. It is powered by a 12V brushless DC motor utilizing a sine wave drive and Pulse Width Modulation (PWM) signaling. It is designed to draw in outside air and increase the air pressure when the blades rotate, allowing the speed of the airflow to be adjusted according to the needs of the application.