Product name: KX1926 solar fan
Item no: KX1926 
Size: 180 * 60 * 172 mm
Weight: about 100g
Material: wood + motor + solar panel + plastic accessories + wood glue.
Color: wood
Whether to use batteries: solar energy
Packing: 500 PCS
Rules: 600 * 450 * 550 mm


Power shortages often occur in the summer, and solar fans generate electricity by harnessing natural resources -- sunlight. The working principle of the solar fan is that a solar panel, as long as there is a light, it will turn the light source into a voltage, timely transmission through the cable to the fan motor, through the gear drive to make the fan turn, do children need a small fan in summer? But the fan needs the battery, but the battery consumption is very fast, let's make a solar electric fan, let's take a look at the production process!

Experimental focus: understand the simple configuration principle of solar fan for hair washing.


Objective: 1. To understand the main components of solar fans   
         2. Know the role of each component in the solar washing fan


Experimental cognition:
Solar panel: Solar panel (Solar panel) is by absorbing sunlight, the Solar radiation through the photoelectric effect or photochemical effect directly or indirectly converted into electrical energy device, the main material of most of the Solar panel as the \"silicon\", but because of the production cost is very big, so much so that it can't be extensive and widespread use. Compared with ordinary batteries and rechargeable batteries, solar cells are more energy efficient and environmentally friendly green products.


Solar electric motors: solar electric motors include solar cells, using a concept designed to generate power from sunlight. The motor converts heat into electricity through a collection of solar panels, which can generate power very efficiently and economically.

Knowledge expansion: the sun shines on the semiconductor p-n junction and forms a new hole-electron pair. Under the action of the electric field of p-n junction, the hole flows from n region to p region, and the electron flows from p region to n region. When the circuit is connected, the current is formed. This is how photovoltaic solar cells work.