What does the energy efficiency of fans mean? The energy efficiency of wind turbines refers to the ratio of services provided by wind turbines to the total amount of electricity consumed. The so-called "improving energy efficiency" means giving the same energy system through lower electric energy input. The energy efficiency grade represents the classification of energy efficiency of electrical products. According to the relevant standards of China, China's energy efficiency is divided into five grades, such as 1-5. The higher the level, the smaller the energy consumption and the better the energy-saving effect.
How to choose a fan First, look at the fan blades.
The greater the number of fan blades, the more concentrated the cutting wind, the milder the effect of wind and the longer the exhaust air volume. Generally, the nominal diameter of five leaves is larger than that of three leaves, and the torsion angle of three leaves is larger than that of five leaves, so the wind speed of five leaves is large, the wind effect is mild, and the wind effect of three leaves is large and hard.
Second, look at the motor materials.
The core technology of motor is movement, and there are many kinds of raw materials for movement. At present, the most widely used materials on the market are: all-copper movement, copper-clad aluminum movement and aluminum wire and cable movement. All-copper movement has high magnetization, small transmission coefficient, the longest life and the most expensive engineering cost; Followed by copper-clad aluminum, followed by aluminum wire cable motor.
Third, look at the capacitance.
As the main component of electric fan, capacitor can reflect the quality of motor. The lower the capacity of the general household electric fan, the lower the starting current of the motor, the more environmentally friendly and energy-saving, and the more stable the motor performance. In addition, the higher the rated current, the higher the voltage surge resistance level of the capacitor, and the longer the relativity of motor characteristics.
Fourth, look at the gear setting and maneuverability.
When purchasing, customers also need to consider the gear setting of the electric fan. Multi-gear can provide a variety of exhaust air volume and a variety of mode options. In terms of safety performance, many devices are equipped with a remote control or can be connected to a mobile phone for operation, which is relatively convenient to operate while lying in bed. Modern fans are very versatile and look a bit fancy, but they are really fragrant to use.
Five, look at the electric fan shaking his head.
The head shaking of an electric fan depends on its exhaust category. The general electric fan's shaking head can be divided into left and right, manual, reclining, up and down, 360-degree shaking head, O-shaped shaking head and its figure-eight shaking head. The way to shake your head can be chosen according to your own needs. If you use a wide group, you need to choose the function of shaking your head up and down first. If necessary, adjust the indoor temperature and promote air circulation. You should choose to shake your head 360 degrees or O-shape.