Everyone must be curious about how the solar lamp works. As a kind of clean energy, solar energy does everyone want to own one? Do you feel that the solar lamp purchased online is not bright enough and does not light up long enough at night? The food does not light up. Read this article and I will teach you step by step how to buy a solar street light for 1 yuan. For
1 and solar panels , we chose a second-hand solar panel from a certain fish (one or both of the wiring pads fell off, and they need to be polished to find the electrodes for welding), and the cost is about 1.7 yuan/piece. Netizens with weak hands-on skills can choose to buy second-hand solar panels with wires to avoid soldering wires.
Second-hand disassembled solar cell 6V 0.8A
2, use Lichuang EDA to draw circuits and printed boards, generate manufacturing files, use free online proofing of printed boards to make small street light control printed boards and light panels, and self-solder the small street light control plate.
Small street light circuit principle
Circuit board 3D model
15 Lamp bead lamp board physical welding
3. Remove the 3.7V lithium battery from old toys such as toy cars and toy pistols as the light board power supply. Insert or weld the positive electrode of the lithium battery to the positive terminal of the round hole pad of the BAT socket on the circuit board, and insert or weld the negative electrode of the lithium battery to the negative terminal of the square hole pad of the BAT socket on the circuit board. Then insert or weld the positive electrode of the solar cell to the positive terminal of the round hole pad of the SOLAR socket on the circuit board, and insert or weld the negative electrode of the solar cell to the negative terminal of the square hole pad of the SOLAR socket on the circuit board.
3.7V 2800mah lithium battery
4. Disassemble the scrap LED bulb , use the shell of the scrap LED bulb, assemble the battery and light board in the bulb shell, use hot melt glue or glue to fix the light board circuit board, and then The lampshade is installed and a solar street light is completed.
Solar street light
Above, a solar street light is completed. It can automatically charge during the day and light up automatically at night. The solar panel is installed in a position exposed to direct sunlight and forms a certain angle with the sun's rays. This article will be small Street lights are installed in corridors and other lanes, and solar cells are connected to the street lights through extended wire harnesses.
