Floor fan, rotary fan fan / table fan, tower fan

These three are the most common types of bathroom ventilating fans, floor fan and table fan through the fan rotation to air circulation, and the tower fan through the internal wind wheel rotation, the wind through the cross flow fan will air "rejection" to form a gas flow. Floor fan is the most common, occupying a large area; Taiwan bath ventilator fans occupies a small, but can not turn around, covering the smaller area; tower fan occupies small, but the air volume is generally not easy to clean up.

Air-conditioning fan

Air conditioning electric industrial fans, also known as the cold fan, the principle is similar to the tower fan, tower fan directly to the wind out, and air conditioning fan sent by the wind after the water or ice after the discharge, the wind is slightly lower than the room temperature, but the basic temperature So that only air-conditioning electric room fan directly blown to the body will feel cooler than ordinary bathroom window fans, but because of the cooling through the water, resulting in blowing the cool air humidity is not recommended for a long time straight blow, but also do not recommend the southern wet areas to buy, Will blow more and more wet.

No leaf fan

No leaf bath ventilation fan was originally invented by DYSON (Dyson), that is no leaf, in fact, below the turbo exhaust window fans into the air into the hollow ring, through the ring to set the gap to send air. The circular cross section of the air doubling machine is similar to the shape of the aircraft wing, using the Coanda effect and the same effect as the wing lift to increase the air volume. As a result of patents and other issues, in addition to the current Dyson, the basic are some small factories doing, usually noisy.

Air circulation fan / convection fan

Circulation bath ventilator fan is widely concerned, a large part of the MUJI cycle fan so many people caused by grass. In fact, the air circulation fan and the fan in essence does not belong to the same kind of household electrical appliances, ordinary heater with fans through the air circulation, to speed up the body surface evaporation to reduce the body temperature, and the main role of the circulating bathroom ceiling fans is the formation of indoor air convection cycle to reasonable Of the air flow to achieve the effect of equilibrium temperature. Generally not directly used to cool, commonly used to meet the use of air conditioning.

Fan failure cause

1, poor maintenance, long-term lack of lubricants. bath ventilator fans shaft part is to ensure that there is lubricating oil, or the fan in the above motive can not drag. If you are at home, you can choose to turn off the power, and then toggle the fan, if the rotation is stiff, basically there is no oil.
2, with a long time caused by wear and tear. If a fan with a long time, the motor will be lost, the motor sleeve will be easy to burn after wear and tear.
3, overheating caused by the bathroom window fan does not turn. In the fan device is a motor, the motor will have a thermal circuit breaker, if the coil winding place short circuit, will let the heat increase within a short time, so the case the motor will "strike" fixed.
4, start the capacitor capacity becomes smaller. When the electric room fans with a long time, the capacitance will be reduced, resulting in the motor starting torque becomes smaller, can not drive the load.
5, electrical failure problems, such as line damage.