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Q:What is the principle of a vaneless fan?
No leaf fan operation, the motor base in the first air inhaled from many hole edge, then the air pushed upward into the hollow pipe ring, the pipe on the side of the thick, with a ring of narrow slit, the air ejected from the slot; at the Bainuliding law, these the air flow will produce a lower pressure in the middle ring, thus driving the rear ring, on the surrounding air flows toward the front of the ring together, blowing.
Q:What are your misunderstanding blowing ？
The electric fan to blow away from the body should not be put in place very close to the near side if the strong winds, and only the wind blowing body, make the skin sweat evaporates quickly, the temperature decreased significantly, but not with the wind blowing side, slow evaporation of sweat, sweat and blood circulation causes the body to both sides of the discharge gap is too large. The nerve center will lose balance, once for a long time, each organ will feel terribly fatigued, and malaise
Q:Is the power consumption the same when the fan is used in different gears?
Asynchronous motor efficiency is a very delicate thing, when the speed is similar to the design speed, the efficiency is very high, when the deviation is large, the efficiency is very low. Therefore, the speed range of the general fan is also very small
Q:What are the common faults of electric fans?
The fan shaft part is to make sure that there is grease, or that the fan cannot drive on it
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
Q:How should an electric fan be used?
Turn on the fan too long, the body will cause discomfort. Body temperature will decrease with the evaporation of large amounts of sweat, over time, it is easy to cause cold, abdominal pain, diarrhea and other symptoms, to properly open, it is recommended to open for about 1 hours is appropriate.
Q:What is the principle of an automatic fan head swing back and forth?
The other end of the pendulum button is a gear, and when it goes down, it coincides with the gear that rotates under the fan, so the gear below will push the fan to swing
Q:Where does the wind from the electric fan come from?
At the same time, the air velocity of the diagonal line must be faster than that of the straight line, causing the air pressure on both sides to vary. The air flowing along the straight line flows to the side of the air where the wind is formed
Q:How was the electric fan invented?
The mechanical fan originated in 1830, an American named James Byron inspired by the structure of clocks and watches, invented a mechanical fan that can be fixed on the ceiling and driven by a spring
Q:How to pick an electric fan?
The fan leaves of a bamboo, streamlined appearance.