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LED (light emitting diode) front car lamp

A technology for LED lights and headlights, which is applied to point light sources, lighting and heating equipment, fixed lighting devices, etc. High efficiency and beautiful appearance

Inactive Publication Date: 2012-03-28
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, a lot of manpower and material resources have been invested in the research of LED headlights at home and abroad, but there are still many problems, such as the light effect of the reflector cup is not good, so it is necessary to use multiple or high-power LED lights, and this brings a lot of problems. Here comes the headlights that generate a lot of waste heat, how to better deal with the problem of LED heat dissipation

Method used

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  • LED (light emitting diode) front car lamp
  • LED (light emitting diode) front car lamp
  • LED (light emitting diode) front car lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of LED headlamp, comprises low beam lamp group 1, high beam lamp group 2, PCB board 3, radiator 4; Described low beam lamp group 1 and high beam lamp group 2 are installed on the PCB board 3, described A radiator 4 is installed at the rear of the PCB board 3; the low beam group 1 includes an LED lamp and a low beam cup; the high beam group 2 includes an LED lamp and a high beam cup; The inner surface of the optical cup and the high beam cup is a mirror surface, and the mirror surface is divided into several irregular free-form surfaces along the axial direction; the cup bodies of the low beam cup and the high beam cup are divided into at least 3 sections along the axial direction, and each section Different areas are illuminated to achieve a relatively uniform light spot and a clear cut-off line.

[0026] When the front lamp works, the waste heat emitted by the LED lamp is quickly transferred to the radiator 4 by the PCB board, so as to achieve the effect of heat...

Embodiment 2

[0028] A kind of LED headlamp, comprises low beam lamp group 1, high beam lamp group 2, PCB board 3, radiator 4; Described low beam lamp group 1 and high beam lamp group 2 are installed on the PCB board 3, described A radiator 4 is installed at the rear of the PCB board 3; the low beam group 1 includes an LED lamp and a low beam cup; the high beam group 2 includes an LED lamp and a high beam cup; The inner surface of the optical cup and the high beam cup is a mirror surface, and the mirror surface is divided into several irregular free-form surfaces along the axial direction; the cup bodies of the low beam cup and the high beam cup are divided into at least 3 sections along the axial direction, and each section Different areas are illuminated, and each segment illuminates different areas, so as to achieve a relatively uniform spot and a clear cut-off line.

[0029] The divergence angle of the cup body in the horizontal direction is 11°, and the divergence angle of each segment...

Embodiment 3

[0033] A kind of LED headlamp, comprises low beam lamp group 1, high beam lamp group 2, PCB board 3, radiator 4; Described low beam lamp group 1 and high beam lamp group 2 are installed on the PCB board 3, described The low beam lamp group 1 is connected with the PCB board through the positioning column one 101 provided on it and the positioning hole one 301 provided on the PCB board; the high beam lamp group 2 is connected with the PCB board through the positioning column two 201 provided on it and the PCB The positioning hole 301 provided on the board is connected with the PCB board; the heat sink 4 is installed at the rear of the PCB board 3; the PCB board 3 is connected with the positioning hole three 401 through the positioning hole two 302 provided thereon; The low beam group 1 includes an LED lamp and a low beam cup; the high beam group 2 includes an LED lamp and a high beam cup; the inner surface of the low beam cup and the high beam cup is a mirror surface, and the mir...

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Abstract

The invention discloses an LED (light emitting diode) front car lamp, belonging to the field of illumination devices. The front car lamp comprises a lower beam lamp set, a higher beam lamp set, a PCB (printed circuit board) and a heat radiator, wherein the lower beam lamp set and the higher beam lamp set are installed on the PCB; the rear part of the PCB is provided with the heat radiator; the lower beam lamp set comprises an LED lamp and a lower beam cup; the higher beam lamp set comprises an LED lamp and a higher beam cup; the inner surfaces of the lower beam cup and the higher beam cup are mirror surfaces, and the mirror surfaces are divided into a plurality of irregular free-form surfaces axially; and the cup bodies of the lower beam cup and the higher beam cup are both divided into at least three sections axially, and each section is used for illuminating different areas. The lower beam cup and the higher beam cup of the front car lamp have high light efficiency, the amount of applied LEDs is less, and the heat radiation issue of the LED lamp is solved, thus the full LED of the front car lamp is realized; also the front car lamp provided by the invention is simple in structure, does not need excessive optical accessories the light energy loss is reduced, simultaneously the cost is lowered, and the front car lamp can be widely popularized and applied.

Description

technical field [0001] The invention relates to an illuminating device, in particular to an LED front lamp. Background technique [0002] The front lighting system is mainly used for road lighting at night or in harsh environments. According to statistics, the traffic volume at night accounts for 25% of the total traffic volume, while the traffic accidents at night account for 47% of the total traffic accidents. There are many reasons for the frequent occurrence of traffic accidents at night, among which the decline of headlight performance One main reason. Traditional headlight sources include incandescent lamps, halogen lamps and high-intensity discharge lamps (High Intensity Discharge Lamps, HID). Among them, the service life of incandescent lamps and halogen lamps is generally only a few hundred hours, and the service life of HID is only a few thousand hours. Therefore, seeking a new and durable light source to replace the traditional light source has a positive effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/10F21V7/22F21V29/00F21W101/10F21Y101/02F21V29/74
Inventor 郭康贤彭超陈斌
Owner GUANGZHOU UNIVERSITY
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