9WF0424H702

DC Fans

DC fans are electric machines that convert electrical energy into mechanical energy. They are used to circulate air to provide ventilation, cooling and energy efficiency in many different device types, including industrial and commercial products. The 9WF0424H702 is a DC fan designed specifically to handle more demanding applications. In this article, we\'ll explore the application field and working principle of the 9WF0424H702 DC fan.

Application Field

The 9WF0424H702 DC fan is perfect for industrial applications that require extremely low sound levels and long life expectancy. This version of DC fans is available with an 80mm, 92mm, and 120mm size motor and is capable of producing up to 102 CFM. Additionally, the fan features a PPTC (polymeric positive temperature coefficient) thermistor with a self-resetting circuit, which allows the unit to neatly shut down during excessive high temperatures. This makes it perfect for anti-mosquito machines, medical equipment, and server cooling.

Working Principle

The 9WF0424H702 uses an electric motor that is powered by direct current (DC). This motor transforms electrical energy into mechanical energy by creating a magnetic field around the rotor. The magnetic flux also induces an electrical force, called back EMF, in the rotor windings, which produces a torque. The torque will cause the rotor to rotate, establishing the rotation of the fan blades.

This DC fan has a low-inertia design, which optimizes both air performance and noise levels. The motor features a dual-coil design, with two sets of windings that are connected in parallel. This design creates a higher starting force, thus allowing the fan to start quickly and reliably in any voltage range. Additionally, due to the energy efficiency of the motor, the 9WF0424H702 can provide a low static pressure.

Conclusion

The 9WF0424H702 DC fan was designed to be a reliable and energy efficient cooling solution, perfect for the more demanding applications. It features a low noise and vibration output along with a long life expectancy, making it a perfect fit for medical equipment, anti-mosquito machines, and server cooling. The DC fan boasts a dual-coil motor with two sets of windings and a PPTC (polymeric positive temperature coefficient) thermistor with a self-resetting circuit. With this combination of features, the 9WF0424H702 is able to accommodate the most complex and demanding cooling applications.