Solar modular LED street lamp

Abstract

The present invention discloses a solar modular LED street lamp. A bottom surface of a heat radiator is provided with a thin plate. The central part of the upper end of the bottom surface of the thin plate is provided with a lamp stand hole for mounting the lamp stand, and the two ends are provided with arc-shaped fins which are bent to the lamp stand hole. An LED module is composed of the following components: a plurality of large-power LEDs, an aluminum base circuit board which fixes and electrically connects each LED, a constant-current power supply which is fixed and electrically connected with the aluminum base circuit board, a reflection cup and a flat transparent cover. A front baffle plate and a back baffle plate are respectively fixed at two ends of the heat radiator. The front baffle plate is provided with mounting holes for mounting the lamp stand. The solar modular LED street lamp has the following advantages: small volume of the radiator, high heat radiation effect, small weight, reduced aluminum material, low cost, high convenience in outdoor overhead mounting, low strength requirement for the lamp stand; small light decay of the LED lamp, long service life and high light emitting efficiency of the LED lamp; high self-cleaning capability, high sealing effect and high protection performance. Particularly a variable-power control controller is adopted for furthermore prolonging service life and improving light emitting efficiency of the LED lamp.

Description

technical field [0001] The invention belongs to the field of LED lighting and relates to a solar LED street lamp. Background technique [0002] Existing solar LED street lamps are provided with a constant current power supply and a fixed LED circuit board separately, and the constant current power supply is arranged in the constant current power supply receiving groove of the radiator. There are many materials, high cost, inconvenient outdoor high-altitude installation, and high requirements for the strength of the light pole. In order to increase the heat dissipation effect of the radiator, the radiator adopts a radiator with straight fins. Since the street lamp is used outdoors, the outdoor environment is poor, especially there is a lot of dust, and the dust falls between the straight fins of the radiator. The LED street light is installed at a slight inclination, so the dust is not easy to fall automatically. When it rains, part of the dust will flow down with the rain, ...

AI Technical Summary

Problems solved by technology

[0002] Existing solar LED street lamps are provided with a constant current power supply and a fixed LED circuit board separately, and the constant current power supply is arranged in the constant current power supply receiving groove of the radiator. There are many materials, high cost, inconvenient outdoor high-altitude installation, and high requirements for the strength of the light pole

In order to increase the heat dissipation effect of the radiator, the radiator adopts a radiator with straight fins. Since the street lamp is used outdoors, the outdoor environment is poor, especially there is a lot of dust, and the dust falls between the straight fins of the radiator. The LED street light is installed at a slight inclination, so the dust is not easy to fall automatically. When it rains, part of the dust will flow down with the rain, and some will remain between the ribs. It is difficult to achieve the purpose of self-cleaning, and the dust will accumulate more and more , leading to poor heat dissipation effect of the radiator and large light decay of the LED, which reduces the service life of the LED street lamp

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