DF-3-180W Torque Motor Cooling Fan

Everything in the world relies on air cooling. Today, we are introducing the DF-3-180W torque motor cooling fan. This mechanical and electrical product is a common cooling method: it directly fixes the casing on the mechanical equipment and blows air for cooling, with no extra steps in between, thus achieving the purpose of directly cooling the equipment. This method is simple and effective, so it is widely used by customers. For low-power equipment, self-cooling is sufficient. For high-power mechanical and electrical products, a large amount of heat is generated during operation, and relying solely on the equipment's own cooling is difficult to achieve the desired cooling effect. The 180W model is generally the most commonly used, and customers can choose a higher power according to their actual needs. As long as the equipment can operate smoothly, that is the best. If you have needs in model selection, you can consult us, and we will wholeheartedly provide you with thoughtful service.

Working Principle
The main working component of the DF-3-180W torque motor cooling fan is the impeller. When the prime mover drives the impeller to rotate, the blades in the impeller force the fluid to rotate, that is, the blades do work on the fluid along its direction of motion, thereby increasing the pressure energy and kinetic energy of the fluid.
At the same time, under the action of inertial force, the fluid flows from the center to the edge of the impeller, flows out of the impeller at a high speed and enters the volute, and is then discharged through the exhaust hole. This process is called the compression process. Meanwhile, since the fluid in the center of the impeller flows to the edge, a low-pressure area is formed in the center of the impeller. When there is sufficient vacuum, under the action of the pressure at the suction end (generally atmospheric pressure), the fluid enters the impeller through the suction pipe. This process is called the suction process.
Due to the continuous rotation of the impeller, the fluid is continuously discharged and sucked, forming the continuous operation of the fan.
It is worth noting that the energy of the fluid increases when it flows through the rotating impeller because the blades do work on the fluid along the circumferential tangential direction, not because of the action of centrifugal inertial force.
Structural Form
The structure of the DF-3-180W torque motor cooling fan is relatively simple and easy to manufacture. Both the impeller and the volute are generally made of steel plates.
Rotation Mode
Centrifugal fans can be designed in two rotation directions: right-handed and left-handed. When viewed from the side of the prime mover, an impeller rotating clockwise is called right-handed, and one rotating counterclockwise is called left-handed. It should be noted that the impeller can only rotate along the unfolding direction of the volute's spiral line; otherwise, if the impeller rotates in reverse, the flow rate will suddenly drop.
Air Intake Mode
The air intake modes of centrifugal fans are divided into two types: single-side intake and double-side intake.
Air Outlet Position
The position of the air outlet of a centrifugal fan can be designed in various ways according to usage requirements, such as upward, downward, horizontal, leftward, rightward, and inclined in various directions.
Transmission Mode of DF-3-180W Torque Motor Cooling Fan
There are multiple transmission modes for centrifugal fans depending on usage conditions.
When the fan speed is the same as the motor speed, large fans can use a coupling to directly drive the fan and the motor, which makes the structure simple and compact. For small fans, the impeller can be directly mounted on the motor shaft, making the structure even simpler and more compact. When the fan speed is different from the motor speed, a transmission mode with a pulley for speed change can be adopted.
Usually, the impeller is mounted at one end of the main shaft. This structure is called a cantilever type, and its advantage is that it is easy to disassemble. For large double-suction fans, the impeller is generally placed between two bearings. This structure is called a double-support type, and its advantage is that it operates more smoothly.