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Professional manufacturing and production of radiator cooling fans, condenser fans and fan motors, etc.

In the process of using the fan in order to reduce the low noise must pay attention to the following points

A major part of the electric fan is: ac motor. Its working principle is: electric coil in the magnetic field force and rotation. Energy conversion form is: electricity mainly converted into mechanical energy, and because the coil resistance, so inevitably there is a part of the electrical energy into heat. Electric fan work ( Assume that the room without heat transfer with the outside world) Indoor temperature has not reduced, it will rise. Let us to analyze the reasons of temperature rise: electric fan is working, due to the current through the fan coil, wire is resistance, so will inevitably produce heat to heat, so the temperature will rise. But why do people feel wool-like fabric. Because the body's surface have a lot of sweat, when after the fan works, indoor air is flowing, so it can promote the rapid evaporation of sweat, combined with the 'need to absorb a large number of evaporation heat, so people will feel cool. 1, parallel fan: parallel double fan air pressure is constant, but the wind will rise. Air volume increase so the heat dissipation effect increased, and in the design if there is a cooling power is too small can consider to increase the fans to solve. System impedance: air flow resistance will cause air flow noise, air turbulence: due to the design of the runner caused by bad air turbulent flow high frequency noise will come, if you don't improve it is difficult to improve the quality flow, fan speed and size, the faster the speed of the fan cooling effect, the better, the bigger the size of the fan air volume, the greater the heat dissipation effect is better. The higher the speed of the fan noise, the greater the size, the greater the noise.

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