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Time：2022-01-10Views：0
The DC straight-floating hot fan actually rotates the DC motor by inputting DC power, mobilizes the fan impeller to rotate, and realizes the conversion process of DC power to machine energy. The fan is called a DC fan. The biggest feature of the DC direct floating hot fan is the selection of a DC motor. What are the benefits of DC direct floating hot fans in detail?
1. Low consumption and high efficiency: Because the fan adopts permanent magnet excitation, it eliminates the consumption caused by the excitation current of the motor; at the same time, the permanent magnet brushless DC motor runs synchronously, eliminating the frequency consumption of the rotor core of the motor. These two aspects make the operating efficiency of the permanent magnet brushless DC motor much higher than that of the felt motor, and the efficiency improvement of the small-capacity motor is more obvious.
2. High power factor: Since the excitation magnetic field of the brushless DC motor does not require the reactive current of the grid, its power factor is much higher than that of the felt motor. The brushless DC motor can run at a power factor of 1, which is extremely beneficial for low-power motors. Compared with felt motors, brushless motors not only have higher efficiency and power factor under rated load, but also have advantages under light load.
3. The speed control function is good, and the control is simple: Compared with the frequency conversion speed control of the motor, the speed control of the brushless DC motor is not only simple, but also has a better speed control function.
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