Circuit for enhancing anti-lightning surge impact of LED street lamp

Abstract

The invention relates to a circuit for enhancing the anti-lightning surge impact of an LED (Light-Emitting Diode) street lamp and belongs to the technical field of LED lighting. The circuit is characterized by comprising an aluminum base copper-clad plate, a heat sink substrate, an LED integrated light source, a first diode D1, a second diode D2 and a pressure-sensitive resistor R1, wherein the LED integrated light source is installed on the aluminum base copper-clad plate through the heat sink substrate; the first diode D1, the second diode D2 and the pressure-sensitive resistor R1 are also installed on the aluminum base copper-clad plate; a positive electrode of the LED integrated light source is connected with one end of the pressure-sensitive resistor R1 and a negative electrode of the first diode D1; the other end of the pressure-sensitive resistor R1 is connected with a positive electrode of the second diode D2 and a negative electrode of the LED integrated light source; and a positive electrode of the first diode D1 and a negative electrode of the second diode D2 are connected with the heat sink substrate through a copper foil on the aluminum base copper-clad plate. The circuit has the advantages that the problems of light attenuation and dead light generated as the LED street lamp suffers from anti-lightning surge impact in the outdoor environment are solved; the circuit has the advantages of energy conservation, long service life and environment friendliness; and the maintenance cost is reduced, and the large-scale production is facilitated.

Description

technical field [0001] The invention belongs to the technical field of LED lighting, and in particular relates to a circuit for strengthening LED street lamps against lightning and surge impacts. Background technique [0002] At the beginning of 2009, in order to expand domestic demand, promote the development of China's LED industry, and reduce energy consumption, the Ministry of Science and Technology of China launched the "Ten Cities, Ten Thousand Lamps" semiconductor lighting application demonstration city plan, which injected a strong impetus into the development of LED lighting. As a solid-state semiconductor cold light source, LED (light-emitting diode) has the advantages of high efficiency, energy saving, long life, green environmental protection, rich colors and high safety factor. It has become one of the most popular semiconductor light sources at present, greatly replacing traditional light sources. momentum of development. The current LED lamps, as emerging lam...

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Problems solved by technology

[0004] Therefore, how to overcome the problems of light failure and dead lights caused by lightning surges in outdoor LED street lights, and improve the stability and reliability of their work is Technical problem to be solved by the present invention

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