Analysis of working principle of solar LED street lamp battery

1. Basic composition of solar LED street lamp system The solar LED street lamp lighting system consists of solar cell module parts (including brackets), LED light source, control box (with controller, battery) and lamp pole; solar panel light The efficiency can reach 127Wp/m2, the efficiency is high, and it has very good wind resistance. The lamp part is integrated with a 1W white LED and 1W yellow LED integrated on the circuit board as a plane light source.

The control box body is made of stainless steel, beautiful and durable. The maintenance-free lead-acid battery and charge and discharge controller are placed in the control box. The solar LED street lamp lighting system uses a valve-regulated sealed lead-acid battery, which is It is called maintenance-free battery, which is beneficial to reduce maintenance costs. The charge and discharge controller is designed with proper functions (with light control, time control, over charge protection, over discharge protection and reverse connection protection) and cost control. High cost performance.

2. Simple working principle The solar cell module system is simple in operation, and the solar panel is made by using the photovoltaic effect principle. During the day, the solar panel receives solar radiation energy and is converted into electric energy output, and is stored in the battery through the charge and discharge controller. At night, the illuminance gradually decreases to about 10 lux, and the solar panel open circuit voltage is about 4.5 V. The charge and discharge controller detects this voltage value and then operates. The battery discharges to the lamp cap. After the battery discharges for 8.5 hours, the charge and discharge controller operates. At the end of the discharge, the main function of the charge and discharge controller is to protect the battery.

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