The working principle of solar LED street lamp

The working principle of solar LED street lamp
  
  
1, the system introduced

1.1 Introduction fundamental component system

System consists of components in solar cells (including bracket), LED lamp, the control box (there are controllers, batteries), and the poles of several parts; luminous efficiency solar panels to achieve 127Wp/m2, higher efficiency of the system of anti - Wind design is very favorable; lamp parts, 1W white LED and 1W Yellow LED integrated in a printed circuit board arranged for a certain lattice spacing as a light source plane.

Control box cabinet with stainless steel material, beautiful and durable; control box placed on maintenance-free lead-acid batteries and charge-discharge controller. The system use valve-regulated lead-acid batteries, because of its maintenance very little, it is also known as "maintenance-free batteries" will help to reduce the cost of system maintenance; charge and discharge controller is designed to take into account a full-featured (with light control, time control, overcharge protection, over-discharge protection and reverse protection, etc.) and cost control, to achieve a very high price-performance ratio.

1.2 Work description

System works is simple in principle, the use of photovoltaic solar cells made of effect principle solar panels during the day to receive solar radiation and convert to electricity output, after a charge and discharge controller is stored in batteries at night when the illumination gradually reduced to 10lux about solar cells board open-circuit voltage of about 4.5V, charge-discharge controller, the voltage value detected after the action, battery discharge of the lamp. 8.5 hours after the discharge of batteries, charge-discharge controller movements, the end of battery discharge. Charge and discharge controller's main role is to protect the battery.

2, system design concepts

The design of solar lights solar lighting in general compared to the same basic principles, but the need to consider the link for more. The following will be Neo-Neon Holdings Limited Hong Kong, this solar power LED lights, for example, in several areas to analyze.