Q:Have you been driving the fan, more electricity or more air conditioning?

The average family uses a power 150W fan for 15 hours per day (4 p.m. to 7 a.m.), with a power consumption of 2.25 degrees，The use of 1.5HP air conditioning, unit per hour power consumption of about 1.5 degrees, the daily use of 5 hours (6 to 11 points in the evening), then the power consumption is 7.5 degrees

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

In the multimeter stalls placed in the 20M file, measuring winding (using the motor three lines in any one) and the motor stator core insulation resistance, the resistance should be above 2M, can determine the motor only problem

Q:What are the types of electric fans?

Household electric fan: a fan, fan, fan, wall fan, ceiling fan, fan, fan, air conditioning fan (i.e. cooling fan); Taishan and shook his head and shook his head: some fan; fan in the head and turn the page

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

It's also the smallest wind. It's really smaller than the tower fan at the same price. The biggest sound is still big

Q:Why does the fan turn?

The working principle is that the energized coil rotates under the force of the magnetic field.

Q:Where does the wind from the electric fan come from?

The Bernoulli principle. Just like an airplane has wings,

Q:How was the electric fan invented?

In 1872, a Frenchman named Joseph has developed a wind turbine start-up by using mechanical device, fan gear chain transmission, the fan than mechanical fan Byron invented more refined than, use convenient.

Q:Why do most fans only have 3 blades?

We usually use the fan for axial fan, the blade is odd, this is because if the even shape symmetrical blades, and no adjustment of balance, it is easy to make the system resonance occurs, if the blade material is unable to resist fatigue due to vibration, will cause the blade or the spindle is broken, so odd pieces of the fan blade design on asymmetric multi axis design

Q:Why does the fan seem to spin backwards when it spins?

Because the human eye to object displacement to distinguish between 0.1s, and 0.1s when the fan turn fast may turn 350 degrees, looks like reversal of 10 degrees, so add up, like upside down

Q:Does the fan blow the door open or closed?

Conditional doors should be opened against the door to form an air duct for the air convection.