Modular street lamp

Abstract

The invention provides a modular street lamp, which comprises a lamp cap, wherein the lamp cap comprises at least one group of street lamp modules and dustproof covers, and the dustproof covers cover the street lamp modules; wiring ducts and cover plates of the dustproof covers are arranged on the dustproof covers, and the dustproof covers and the cover plates of the dustproof covers form cavities to accommodate cables. The invention has wide application range, adopts modular design, facilitates maintenance and replacement, can prevent the accumulation of large-particle dust, falling leaves, wastepaper, fabrics, droppings and the like on the heat dissipating body of the lamp, and ensures that the LED street lamp has long service life and normally works in outdoor harsh environments.

Description

technical field [0001] The invention relates to the technical field of semiconductor lighting, and relates to a module street lamp, in particular to a lamp cap structure of an LED (Light Emitting Diode) module street lamp. Background technique [0002] The light source commonly used in the current road lamps is a high-pressure sodium lamp or a metal halide lamp, but there are certain deficiencies in the illuminance of the road surface and the uniformity of the illuminance. The industry has gradually begun to use LEDs as street light sources. In the field of semiconductor lighting technology, LED, as the fourth generation of energy, has the following advantages: high luminous efficiency, low reflection loss of lamps, energy saving, no need for high voltage, high safety, and long life, etc. [0003] However, heat dissipation has always been one of the key problems to be solved for LED street lights. Due to the high brightness requirements and high heat generation of LED stree...

AI Technical Summary

Problems solved by technology

However, at present, most manufacturers only consider the heat dissipation surface area required by the LED light source when designing LED street lamps, and do not consider the environmental factors in the actual application of LED street lamps. This will cause large particles of dust, Leaves, paper scraps, woven fabrics, bird droppings, etc. accumulate on the heat sink of the lamp body in large quantities, and it is difficult to wash away even if there is rain. This will cause the heat generated by the LED light source to not be dissipated in time, so that the junction temperature of the LED light source will rapidly increase. increase, the luminous decay is accelerated, and the luminous flux drops sharply, which not only affects the illumination requirements of the road surface, but also greatly reduces the service life of LED lamps.

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