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Light-emitting diode (LED) street lamp

A technology for LED street lamps and housings, which is applied in the cooling/heating devices of lighting devices, outdoor lighting, sustainable buildings, etc., can solve the problems of fixed light distribution angle, inability to adjust differently, and difficulty in reaching the light spot standard. Improve the heat dissipation effect and ensure the effect of normal work

Inactive Publication Date: 2013-05-08
SUZHOU JINGLEI PHOTOELECTRIC LIGHTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still problems with traditional LED street lights: the light distribution angle is fixed, and it is difficult for the light spots projected on the road to meet the relevant light spot standards, and it is impossible to make different adjustments according to different road conditions.

Method used

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  • Light-emitting diode (LED) street lamp
  • Light-emitting diode (LED) street lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0012] As shown in the drawings, an LED street lamp includes a housing 10, and also includes a plurality of LED street lamp units 30 with adjustable angles and independent power supply arranged in the housing. Each LED street lamp unit includes a driving power supply, a heat sink 20, The substrate 50 attached to the heat sink, the PCB board 41 arranged on the substrate 50, the LED lamp bead 40 and the transparent lampshade 31 arranged on the PCB board 41, the rotating shaft 61 of the LED street lamp unit is arranged on the housing and passed through the connecting sheet 60 Connected to heat sink 20. The transparent lampshade 31 can be made of plastic, and each LED street lamp unit can independently lead out a power line directly connected to the power grid. The heat sink 20 protrudes into multiple pieces like a palm to ensure heat dissipation.

[0013] During the working process, the LED street lamp unit may cause the lampshade to break due to thermal expansion and contraction...

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Abstract

A light-emitting diode (LED) street lamp comprises a shell body and a plurality of LED street lamp units which are arranged in the shell body and adjustable in angle and are independently powered. Each LED street lamp unit comprises a driving power supply, a cooling piece, a base board attached on the cooling piece, a printed circuit board (PCB) board arranged on the base board, LED lamp beads and a transparent lamp cover, the LED lamp beads and the transparent lamp cover are arranged on the PCB board, a rotating shaft of each LED street lamp is arranged on the shell body and connected with the cooling piece through connecting pieces. The LED street lamp changes a traditional LED centralized arrangement mode, can combine street lamp power to meet requirements of illumination with different luminance by arranging the LED street lamp units which are adjustable in angle and are independently powered, and can adjust angles of rays to meet light distribution requirements of different illumination areas. Each LED street lamp comprises the independent cooling piece, accordingly cooling effect is improved, and long normal work of the lamp is guaranteed.

Description

Technical field [0001] The invention involves a LED street light. Background technique [0002] The structure of the common LED street lights is to set up LED lights on the front of the substrate, heat sinks on the back, a transparent cover on the front cover, and the housing of the rear.Although a single LED work is very small during work, a large amount of LED will still generate a certain amount of calories when working.The working temperature of LED should generally be less than 50 ° C.According to data, when the working temperature of LED reaches 55 ° C, its life span is reduced by half.The current heat dissipation system of LED street lights is very imperfect. It has become a stumbling block in its promotion and application process. This situation is more serious for medium and high -power LED street lights.Because the street lights are in the outdoor environment for a long time, the structure requires waterproof, dustproof, and insects. The lampshade must be a closed cavit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V29/00F21V19/02F21W131/103F21Y101/02F21V29/503F21V29/76
CPCY02B20/72
Inventor 董春保
Owner SUZHOU JINGLEI PHOTOELECTRIC LIGHTING TECH
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