Centrifugal DC blowers are a special type of DC air supply equipment based on centrifugal aerodynamic principle, which is different from axial flow DC blowers. Axial flow fans push air to flow along the axial direction of the motor, while centrifugal DC blowers rely on the high-speed rotation of the impeller to generate centrifugal force, sucking air from the axial direction and throwing it out radially, realizing high-pressure and concentrated air output. With the characteristics of high wind pressure, concentrated air flow, strong wind resistance, and directional air supply, centrifugal DC blowers are widely used in scenarios requiring high-pressure air supply, targeted heat dissipation, and pipeline air delivery, and are one of the most important structural types in the DC blower industry.

The structural composition of centrifugal DC blowers is precise and professional, mainly including DC brushless motor, volute air duct, centrifugal impeller, air inlet and outlet, and shock absorption fixing bracket. The volute air duct is the core unique structure of the centrifugal blower. The spiral streamline design of the volute can gather the scattered air flow thrown out by the impeller, convert the kinetic energy of the air flow into pressure energy, and finally output high-pressure and stable air flow from the fixed air outlet. The centrifugal impeller adopts a forward-inclined multi-blade structure, with a large number of blades and a small spacing, which can efficiently capture air and generate strong centrifugal force during high-speed rotation. The built-in DC motor is fixedly installed in the center of the volute, with a compact structure and no redundant space occupation, realizing integrated integration of power and air supply structures.

The core performance advantages of centrifugal DC blowers are high static pressure and strong anti-resistance ability. In complex working environments with pipeline resistance, filter resistance, and narrow air ducts, ordinary axial flow DC blowers are prone to insufficient air output and air flow attenuation, while centrifugal DC blowers can maintain stable air volume output under high resistance conditions by virtue of high-pressure air supply characteristics. Their static pressure is far higher than that of axial flow blowers of the same power, which can meet the air supply demand of long-distance pipeline delivery and multi-layer filter penetration. At the same time, the directional air supply mode of fixed air outlets makes the air flow more concentrated, which can realize targeted heat dissipation and fixed-point air supply, greatly improving the utilization rate of air flow.

Centrifugal DC blowers have extremely high application value in industrial equipment, precision electronics, environmental protection purification, and pipeline ventilation. In the field of precision electronic equipment, they are used for targeted heat dissipation of high-power chips, industrial control modules, and communication base station equipment. The concentrated high-pressure air flow can accurately act on heat-generating components to solve the heat dissipation dead angle problem of traditional fans. In the environmental protection and purification industry, centrifugal DC blowers are the core power components of air purifiers, smoke exhaust equipment, and dust removal systems. They can penetrate multi-layer filter screens to realize efficient air filtration and purification. In pipeline ventilation systems, they are applied to small pipeline air supply, gas delivery, and negative pressure exhaust, realizing long-distance stable air circulation.

In addition, centrifugal DC blowers are also widely used in medical equipment, printing equipment, and new energy fields. Medical equipment such as oxygen concentrators and nebulizers relies on the high-pressure stable air supply of centrifugal DC blowers to ensure the stable operation of medical functions. Printing and packaging equipment uses its directional air supply to realize paper suction, leveling and dust removal. In the new energy industry, it is used for battery pack fixed