Electric Fan Assembling Plant

Abstract

In many places including an ordinary house, factory, resting place and the like where men spend part of their time, an electric fan makes them feel cool and refreshed. It is primarily used for controlling the air in a room or ventilating. In particular, during the season of high temperature, it is an important appliance men cannot do without in daily life. The electric fan consists of four main parts; fan, guard, motor and stand. The fan is usually of plastic screw type but sirocco fans are also used. The motor is usually of induction type but a condenser motor is also used. The electric fan is characterized by the rotation of a swinging device, which is converted to the reciprocating motion by a worm gear and crank rod, making the entire fanning device to swing from one side to the other with a fulcrum located in the stand. Though electric fans are limited in use depending upon regions and seasons, they are most suitable for small and medium businesses which can be established relatively easily with small investments on the foothold of universal technology.