CN201126130Y - Combined automobile back lamp - Google Patents

Abstract

The utility model discloses a combined automobile back lamp, including a bracket, wherein, light emitting diodes are equipped on the bracket, and consist of a display screen based on array distribution. The light emitting diodes in array distribution are color light-emitting diodes. The utility model adopts the light emitting diodes in array distribution to form a light-emitting diode display screen which can display steering signals, small light illumination, braking signals, reversing signals and the like, so that the display content expressed at different display areas of the vehicle tail respectively by a steering indicating light, brake lamp, back light and the like in the prior technology are independently or comprehensively displayed in time-sharing by the light emitting diode display screen of the utility model. In short, the entire back lamp display screen can be taken as a display of the vehicle traffic signals, which expands the display area, increases the display definition, so that the signals are easier to be identified by the driver, which will help to improve traffic safety.

Description

The combined vapor tail-light

Technical field

The utility model relates to a kind of automobile tail light, relates in particular to a kind of combined vapor tail-light.

Background technology

Present most of automobile tail light still uses conventional light source such as incandescent lamp, but, seriously restrict the automobile tail light industrial expansion because they have short, numerous shortcomings such as power consumption is high, luminous efficiency is low, easy fragmentation, reaction time slow, dash current is bigger when starting of life-span.Continuous maturation along with the LED technology, its advantage shows particularly evidently, have that mechanical strength is big, volume is little, in light weight, life-span up to 100,000 hours, low in energy consumption, the exciter response time is short, luminous efficiency is high and be difficult for producing series of advantages such as light decay phenomenon.Therefore, in recent years, be widely used in automotive field, adopt single big electric current embedded LED, navigation instrument backboard optical illumination, turn to clearing lamp etc. all to adopt led array such as ceiling light, map lamp and the exterior lighting of automobile are general.

Yet at the automobile tail light of present led array technology, combination has steering indicating light, brake lamp, Rear Fog Lamp, back-up lamp and side-marker lamp in limited zone, also can only utilize the viewing area of 20%-30% to important demonstration signal " brake lamp "; Referring to accompanying drawing one, the color of its various signals demonstrations only is two kinds of redness, yellow simultaneously, all is red usually as brake lamp, fog lamp, side-marker lamp, is easy to cause visual fatigue, also makes mistakes easily when judging simultaneously; Therefore, just brought inconvenience for various traffic and brought certain hidden danger for the appearance of traffic accident more than.

Summary of the invention

The utility model provides a kind of high combined vapor tail-light of service life and travel safety and reliability that improves.

The utility model adopts following technical scheme:

A kind of combined vapor tail-light comprises support, is provided with light emitting diode and light emitting diode is formed display screen by array distribution on support, and the automobile tail light display screen can show that various figures and literal are used for the illumination or the signal of vehicle rear.

Compared with prior art, the utlity model has following advantage:

The utility model adopts the light emitting diode by arrayed, form a light emitting diode (LED) display screen, display screen then can pass through existing control device, just can on light emitting diode (LED) display screen, demonstrate turn signal, the lampet illumination, brake signal, astern signal etc., thereby with in the prior art respectively by steering indicating light, brake lamp, the displaying contents that back-up lamp etc. are expressed in the different viewing areas of automobile tail is independent by the light emitting diode (LED) display screen timesharing that the utility model adopted, comprehensively show, like this, just can make display area of the present utility model cover and be extended to relatively steering indicating light in the prior art, brake lamp, shared automobile tail area such as back-up lamp sum, making the utility model can make full use of the less relatively automobile tail of area realizes turning to, illumination, the eye-catching demonstration of signals such as brake, and can increase displaying contents.In a word, whole taillight display screen can be used as a kind of demonstration of running signal, has enlarged the viewing area, has improved display resolution, makes the easier identification of driver, helps improving travel safety.Concrete advantage of the present utility model is as follows:

1. the light that traditional car light sends all is white light, cooperates one color and lampshade that can printing opacity are arranged, make light appear lampshade after, form different colors.Because light will appear coloured lampshade, so the brightness meeting descends.And the light that LED sent had color originally, so lampshade can be a clear, colorless, so brightness can significantly not reduce.Traditional car light is with prolong producing " light decay " phenomenon service time, and that LED sends the brightness of light is stronger, do not have " light decay " process, can shine farther distance, so more safe and reliable.

2. traditional taillight all be with a bulb as luminescence component, the shortcoming of this kind modulated structure is that lamp is spoilt, just no longer provide the demonstration effect, and LED is long as the taillight display screen life-span: reaching 100,000 hours service life, is tens of times of common bulb.It is reliable, and maintenance cost is low.Because of display screen is made up of several thousand light emitting diodes, even if damage several, still can differentiate train signal, affect the general situation, thereby its security, reliability are higher.

3. emission ultraviolet ray and infrared ray when traditional taillight is luminous, and produce heat, contaminated environment.And the light that LED display sends belongs to cold light, does not have ultraviolet ray and infrared ray in the spectrum, has not both had heat, does not also have radiation, belong to typical green light source, and it is recyclable not have discarded object, does not pollute environmental protection more.

4. traditional taillight light source power consumption is big, efficient is low, with respect to the power supply circuits of automobile storage battery load too heavy, and LED has realized the red, green, yellow production application that waits light LED through nearly more than 40 years effort, luminous efficiency has improved nearly thousand times.In October, 2003, U.S. cree company encapsulated out 1200lm, the white LED lamp of luminous efficiency 321lm/w, and these breakthroughs, LED compares traditional light source as the semiconductor light emitting lamp, and its power consumption only is equivalent to the latter's about 20%.

5.LED signal lamp obtains the favor of city traffic management department with characteristics such as its high brightness, high reliability, low use cost, long-lives.The conventional traffic signal lamp that uses is also being replaced by the LED signal lamp at present.Taillight adopts LED display, and the tone and the traffic lights of light source are complementary, and more favourable driver is to the adaptability and the habituation of traffic light source color.

6. adopt new LED taillight display screen have volume little, in light weight, thin thickness is installed, and have good seismic resistance, mechanical strength height, shock-resistant, not fragile, significantly reduce the maintenance rate of automobile consumable accessory-taillight.

7. " human eye is for the most responsive " these characteristics of mobile object in the utility model utilization, consistent the shape of a part of display graphics with the figure moving direction, turn to such as demonstration, the figure that constantly moves with three yellow arrows on display screen is than traditional blinking red lamp, obviously have effect more intuitively, distinguish wrong possibility thereby reduce the driver.

8. because red ratio is more dazzling, when " brake " signal, display screen uses the large tracts of land redness to look to show the police, and remaining train signal is all without the large tracts of land red display, shown in accompanying drawing four.This helps lowering driver's visual fatigue degree, thereby has improved the security of type car.

9. add up according to the study, the response time when LED is used as automobile main brake lamp can increase the safe distance of 4m-6m than the fast 80ns of traditional incandescent lamp at running on expressway.Adopt new LED taillight display screen to increase safety factor of travel beyond doubt.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

With reference to Fig. 1, a kind of combined vapor tail-light comprises support 1, is provided with light emitting diode 2 and light emitting diode 2 and forms display screen by array distribution on support 1, and the automobile tail light display screen can show that various figures and literal are used for the illumination or the signal of vehicle rear.Above-mentioned light emitting diode 2 by array distribution adopts the colorful light-emitting diode.In the present embodiment, the utility model can be made up of 16 dual base colors, 8 * 8 dot matrix led modules, and the module model is LSM-2388ASRG, each LED spacing 5mm, and the display screen profile is the rectangle of wide 32Cm, high 8Cm, the water white lucite of outer cover.

For the existing train signal of automobile tail light: these six kinds of signals of brake, left steering, right turn, reversing, side-marker lamp and fog lamp, six leads that will connect car light disconnect, and the taillight display screen replaces the position of original bulb.

The input that on behalf of the input of six kinds of train signals, these six leads will link priority encoder through two class level shifting circuits.The first kind is the right turn signal that connects J2, the left direction signal and the side-marker lamp signal that is connected J5 that connects J3, because these three signals all pass through flasher, signal level is by the high and low saltus step of certain frequency, signal is added to 8550 transistor bases through 10K resistance, and colelctor electrode connects the input that the bigger resistance of RC time constant, capacitor filtering are input to priority encoder then.Second class is the brake signal that connects J1, the astern signal and the fog lamp signal that is connected J6 that connects J4, it is without flasher, thereby resistance, electric capacity that transistor collector connects are less, play the filtering interference signals effect, are input to the input of priority encoder then.

J7-JI6 shows usefulness as expanding driving states information at LED display, and for example J7 connects " will reverse end for end ", and J8 connects " agreement is overtaken other vehicles ", and J9 connects " new hand ", and other J10-J16 expands more multirow car information as standby after retaining.Expand running information two kinds of methods of attachment are provided.A kind of is to increase a panel at driver's cabin several P cocks are installed, and an end of each switch is connected respectively to J7, J8, J9, an end ground connection of switch, and when certain switch pushed connection, train signal was effective.

This 16 signals input of J1-J16 is that different priority is arranged, and J1 and J2 weigh for highest priority first on an equal basis, be followed successively by J3, J4 ..., J16, train signal is arranged its priority level according to its importance.5 outputs of priority encoder connect the P3.0 of single-chip microcomputer respectively, and P1.7--P1.4, single-chip microcomputer P3.0, the binary code of P1.7-P1.4 are distinguishable various driving states signal.The function of driving states signal coding output correspondence is as shown in the table:

Input information end numbering and driving states signal	P3.0, the binary coding of P1.7--P1.4	Figure, civilian data are in the address of program storage	Express figure, literal and the color of driving states signal
				The J1 brake	11000H	1000H-10FFH	The red end, yellow Chinese character " Stop "
The J2 right turn	01000H	1100H-11FFH	Black matrix, 3 right arrow right of yellow move
				The J3 left steering	01001H	1200H-12FFH	Black matrix, 3 left arrows of yellow are moved to the left
The J4 reversing	01010H	1300H-13FFH	The yellow end, " the reversing of red Chinese character
				The J5 side-marker lamp	01011H	1400H-14FFH	Black matrix, red five-pointed star
The J6 fog lamp	01100H	1500H-15FFH	The yellow end, black Chinese character " mist "
				J7 will reverse end for end	01101H	1600H-16FFH	Black matrix, yellow Chinese character " will be reversed end for end
J8 agrees to overtake other vehicles	01110H	1700H-17FFH	Black matrix, green Chinese character " agreement overtake other vehicles "
				J9 new hand	00000H	1800H-18FFH	Black matrix, red Chinese character " new hand "
J10-J16	00001H- 00111H	1900H- 1FFFH	Undetermined
				The J1+J2 right turn of braking	11000H	2000H-20FFH	The red end,, 3 right arrow right of yellow move
The J1+J3 left steering that brakes	11001H	2100H-21FFH	The red end,, 3 left arrows of yellow are moved to the left

No information

11111H

No memory contents

Do not have and show

Concrete demonstration control procedure is described below:

When the driving states signal was imported, single-chip microcomputer was according to P3.0, and the coding of P1.7-P1.4 is deposited the 00H-FFH unit that the image, text and data of Flash memory corresponding stored address calls out to internal memory ERAM district.The columns certificate that will leave first row of ERAM district 00H-0FH earlier in is delivered on the system data bus from single-chip microcomputer P0 mouth in order one by one, single-chip microcomputer P2 mouth is given column decoder successively by the order of 00H-10H, column decoding is exported each latch of gating successively, and 16 byte datas are latched in 16 data latches successively.

Single-chip microcomputer P1.3-P1.0 sends source code 0000B to line decoder, row decoding output 1 is high level, drive the LED of first each row of row, the row driving time is to arrange like this, if per second scanning shows 50 screen images, because the vision bottom time of human eye just can not feel that image flashes, the one screen image time of scanning demonstration should be no more than 20ms like this, and the interval of the every row of turntable driving should be no more than 1.25ms.According to the working method of first row, carry out driving the 2nd row successively to the 16th row, finish a screen and show.So repetition one scans with shielding and shows that circulation stops up to the driving states signal.

About dynamically moving the realization of image.If show after the screen, all each moves 1 row to the left or to the right successively in order according to each unit to drive the columns of every row of red, green LED, and then scanning shows that after 1 screen, image will move past 1 to the left or to the right and be listed as; Scanning shows after 64 screens that image will move past a whole screen to the left or to the right, and promptly the image per second of Xian Shiing moves with the speed of 0.78 screen.

Claims (2)

1. a combined vapor tail-light is characterized in that comprising support (1), is provided with light emitting diode (2) and light emitting diode (2) and forms display screen by array distribution on support (1).

2. combined vapor tail-light according to claim 1 is characterized in that the light emitting diode (2) by array distribution adopts the colorful light-emitting diode.

Images