Q:How to measure the quality of fan motors with digital multimeter?

The data is related to the material of the line and the power of the motor. And your motor is endless.

Q:What's the effect of the air circulation fan?

The volume is smaller than the ordinary fan Although more expensive than ordinary fans, but it is recommended to buy. Especially suitable for small Huxing commercial housing

Q:How to make the electric fan in the house to achieve the best results?

If the fan doesn't get into the wind outside the window, it doesn't seem very good to follow the direction of the wind.

Q:How to measure the speed of an electric fan conveniently and precisely?

Can be measured with a laser tachometer, affixed with reflective stickers, measured several times, the effect is good

Q:How was the electric fan invented?

In 1880, Americans for the first time Shule blade is directly mounted on the motor, and then connected to the power supply, the rapid rotation of blades, the cool breeze blowing, this is the world's first electric fan.

Q:What is the principle of a vaneless fan?

The base there is a similar air compressor device, the air is sucked in, after compressed by spraying out annular gap above the ejected air annular air flow driven device, has the wind.

Q:Where does the fan drip the oil?

After turning, the net cover is turned downwards, the shell of the back of the motor is removed, the rotating shaft and the swinging head mechanism of the tail of the motor are exposed, and 4-5 drops are dropped along the root of the rotating shaft, and the back shell is installed after the oil is penetrated

Q:What are the advantages and disadvantages of the vaneless fan?

From the mechanical principle, the suction air and blowing air must use the turbine blade structure, the current technology must be so

Q:Is the power consumption the same when the fan is used in different gears?

The maximum design speed is used as the design value, and the minimum speed deviates from the design value.Fan blade is also a sensitive load, the power of shaft and speed are three times, and the higher the speed, the greater the energy consumption

Q:What is the function of the fan blade?

The number of blades of a fan is often odd number, because it is easy to make the system resonance if the fan with even shape is used and the balance is not adjusted