CN201973630U

CN201973630U - Self-adaptive headlamp device based on LED (light-emitting diode)

Info

Publication number: CN201973630U
Application number: CN201120021276XU
Authority: CN
Inventors: 朱向冰; 陈春; 庞士焕; 陈瑾; 倪建; 武汉; 朱骞
Original assignee: Anhui Normal University
Current assignee: Anhui Normal University
Priority date: 2011-01-11
Filing date: 2011-01-11
Publication date: 2011-09-14
Anticipated expiration: 2021-01-11

Abstract

The utility model relates to a self-adaptive headlamp device based on an LED (light-emitting diode). The whole device comprises 18 similar components, cooling pipes and circuits; each component comprises a cooling fin, an aluminium substrate, the high power LED, a light shading ring and a lens; the cooling fin is internally provided with the cooling pipe; the cooling pipes are internally filled with cooling liquid; the aluminium substrate is arranged in the front of the cooling fin; the LED is welded on the aluminium substrate; a gap between the LED and the aluminium substrate is filled with a heat conducting material; the light shading ring is arranged at the outer side of the LED; the lens is arranged at the front end of the light shading ring; a lead wire of the LED is led out from both sides of the aluminium substrate; the circuits comprise single-chip microcomputers and driving integrated blocks; the single single-chip microcomputer is at least electrically connected with one driving integrated block; and the single driving integrate block is at least electrically connected with one LED. The device has a simple optical scheme, multiple functions and strong reliability and is suitable for large-scale production.

Description

A kind of LED-based adaptive front lamp device

Technical field

The utility model relates to the automotive lighting technical field, especially a kind of LED-based adaptive front lamp device.

Background technology

Car headlamp is the vitals that ensures safety and travel.Adaptive front lamp is the main flow direction of car light development, it can greatly improve the active safety of running car, Europe and Japan begin to develop the head lamp system of this automatic adaptation vehicle running state in succession, but existing adaptive front lamp can not be realized multiple function, optical texture is too complicated, causes cost height, poor reliability, is difficult to make.Therefore press for a kind of new adaptive front lamp.

Summary of the invention

In order to solve above-mentioned technical barrier, the utility model provides a kind of LED-based adaptive front lamp device.

The utility model solves the problems referred to above by following technical proposals:

Single adaptive front lamp device is made up of 18 similar assemblies, cooling tube and circuit, each assembly comprises fin, aluminium base, great power LED, shade, lens, cooling tube is equipped with in fin inside, be filled with cooling liquid in the cooling tube, fin the place ahead is an aluminium base, is welded with LED on the aluminium base, LED and place, aluminium base slit are filled by Heat Conduction Material, shade is equipped with in the outside at LED, and the shade front end is equipped with lens, and the lead-in wire of LED is drawn by the aluminium base both sides; Circuit comprises single-chip microcomputer, drives integrated package, and single single-chip microcomputer is electrically connected with a driving integrated package at least, and single driving integrated package is electrically connected with a LED at least.

The power of every LEDs is all smaller or equal to 3W.

The model of LED is NS6W183, and the model of single-chip microcomputer is MSP430.

18 high-power LED illuminations are adopted in the design of this device, and good reliability can be worked by system under the situation that any LEDs damages; Because the power of every LEDs all is no more than 3W, cost is low, and heat dissipation problem solves easily, is easy on the structure realize; The position of interior all elements of each assembly is all fixed in the utility model, realizes different lighting systems by regulating LED power, makes control circuit fairly simple, is easy to realize, is applicable to large-scale production.

Description of drawings

Fig. 1 is the optical texture schematic diagram of single optical module;

Fig. 2 is a car light overall structure schematic diagram;

Fig. 3 is the circuit theory diagrams of system;

Fig. 4 is the LED combination that realizes dipped beam;

Fig. 5 is the combination that realizes the LED of distance light;

Fig. 6 is the combination that realizes the super expressway illumination;

Fig. 7 is the combination that realizes city illumination;

1.LED light source among the figure, 2. lens, 3. shade, 4. aluminium base, 5.LED lead-in wire, 6. cooling tube, 7. fin, 8. single-chip microcomputer, 9.LED it is more high-power that on behalf of LED power, drive circuit, A be adjusted to, on behalf of LED power, B be adjusted to mid power, and on behalf of LED power, C be adjusted to smaller power.

The specific embodiment:

Tell about specific embodiments below in conjunction with accompanying drawing and example.

The utility model adopts 18 groups of optical elements, and each optical texture forms a rectangular light spot on photometric screen, by the illumination functions of dipped beam, distance light, super expressway and urban road in the cooperation realization standard of many groups optical element.

Each assembly comprises fin, aluminium base, great power LED, shade, lens as shown in Figure 1, fin adopts aluminium alloy to make, there is cooling tube fin inside, is filled with cooling water in the cooling tube, and fin the place ahead is an aluminium base, be welded with led light source on the aluminium base, the LED model is NS6W183, and led light source and place, aluminium base slit are filled by heat-conducting silicone grease, in the outside of led light source shade are housed, the shade front end is equipped with plastic lens, and the lead-in wire of led light source is drawn by the aluminium base both sides;

Fig. 2 is the structural representation of car lamp device, with 18 groups of optical modules by from top to bottom, from left to right order is fixed on the fin successively, and gives every LEDs numbering in this order.

As shown in Figure 3, circuit comprises single-chip microcomputer, drives integrated package, and the single-chip microcomputer model is MSP430, and single single-chip microcomputer is electrically connected with a driving integrated package at least, and single driving integrated package is electrically connected with a LED at least.

In Fig. 4, Fig. 5, Fig. 6, Fig. 7, A represents LED with high power work, and B represents with mid power work, the C representative is with small-power work, and in the present embodiment, high-power expression LED power is 2-3 watt, mid power represents that LED power is 1-2 watt, and small-power represents that LED power is less than 1.5 watts.

As shown in Figure 4, three LEDs are with high power work, and seven with mid power work, and remaining LED does not work, dipped beam type on filament shield satisfies the illumination requirement of national standard to each district and each test point, and the luminous intensity distribution zone does not have tangible saltus step in the horizontal direction.

As shown in Figure 5, four LEDs are with high power work, and four LEDs are with mid power work, and remaining LED does not work, and the upper beam type on filament shield satisfies the illumination requirement in the national standard.

As shown in Figure 6, seven LEDs are with high power work, and three LEDs are with mid power work, and remaining LED does not work, and the brightness value that records each point on filament shield satisfies the requirement of throwing light on about super expressway in the ECE standard.

As shown in Figure 7, three LEDs are with high power work, and seven LEDs are with mid power work, and four LEDs are with small-power work, and remaining LED does not work, and the brightness value that records each point on filament shield satisfies in the ECE standard requirement about city illumination.

The foregoing description is illustrative principle of the present utility model and effect only; and the embodiment of part; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims

1. LED-based adaptive front lamp device, it is characterized in that: single adaptive front lamp device is made up of 18 similar assemblies, cooling tube and circuit, each assembly comprises fin, aluminium base, great power LED, shade, lens, cooling tube is equipped with in fin inside, be filled with cooling liquid in the cooling tube, fin the place ahead is an aluminium base, be welded with LED on the aluminium base, LED and place, aluminium base slit are filled by Heat Conduction Material, shade is equipped with in the outside at LED, the shade front end is equipped with lens, and the lead-in wire of LED is drawn by the aluminium base both sides; Circuit comprises single-chip microcomputer, drives integrated package, and single single-chip microcomputer is electrically connected with a driving integrated package at least, and single driving integrated package is electrically connected with a LED at least.

2. a kind of LED-based adaptive front lamp device according to claim 1, it is characterized in that: the power of every LEDs all is less than or equal to 3W.

3. a kind of LED-based adaptive front lamp device according to claim 1, it is characterized in that: the model of LED is NS6W183, the model of single-chip microcomputer is MSP430.