CN205248304U

CN205248304U - LED car light light source

Info

Publication number: CN205248304U
Application number: CN201521089856.7U
Authority: CN
Inventors: 黄增颖; 曾昭烩; 毛卡斯; 黄巍; 石超
Original assignee: Guangzhou Hongli Tronic Co Ltd
Current assignee: Hongli Zhihui Group Co Ltd
Priority date: 2015-12-24
Filing date: 2015-12-24
Publication date: 2016-05-18
Anticipated expiration: 2025-12-24

Abstract

The utility model provides a LED car light light source, includes the base plate, be equipped with functional areas on the base plate, be equipped with a plurality of LED chips on the functional areas, functional areas are rectangle, and the periphery of functional areas is equipped with the cofferdam and encloses the LED chip and close, every the top surface of LED chip goes out the plain noodles and all covers independent fluorescent layer. The utility model discloses a cofferdam is rectangular framework, restricts through the appearance of cofferdam with the LED chip, makes the car light can form clear cut line with the short -distance beam of catching, in addition, every LED chip is furnished with the fluorescent layer, and the fluorescent layer carries out the grading to the light -emitting of LED chip, therefore the light -emitting effect of every LED chip obtains the reinforcing, can form obvious clear cut line when making the car light short -distance beam. (U /)

Description

A kind of LED vehicle lamp light source

Technical field

The utility model relates to LED car light, especially the light source of car headlamp.

Background technology

Along with the rise of LED, the application of LED is more and more wider, and LED had been applied in automobile lamp illumination in recent years. For car headlamp, because it to the requirement of optics is: in the time of dipped beam, need to have "cut-off"line. There is the requirement of "cut-off"line for meeting car light dipped beam, on market, there is a kind of fairly simple car headlamp, if China Patent Publication No. is 204,313,175 1 kinds of LED car lights, comprise substrate, limit light frame and chip, substrate has functional areas, in functional areas, be fixed with described chip by die bond technique, in limit light frame, be filled with fluorescent glue or glue; On substrate, be positioned at outside functional areas and be provided with locating slot, the bottom holding of limit light frame, in locating slot, is provided with viscose glue between locating slot and limit light frame. The chip that this car light is arranged by limit light frame and yi word pattern coordinates, and (linear beam spot that the light sending forms, by simple secondary optical design), makes the dipped beam light type that car light is up to have "cut-off"line, thereby meet the demands. Although above-mentioned car light can barely meet the illumination requirement of headlamp, due to LED chip substrate manufacture difficulty, cost is higher, and white light is encapsulated as organosilicon encapsulation, temperature tolerance is poor, light-emitting area is larger simultaneously, linear beam spot is fuzzy.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of LED vehicle lamp light source, light source white light is encapsulated as inorganic fluorescent glass, heat resistance is good, light source luminescent area approaches chip area and light-emitting area is less, can form linear beam spot clearly, the light sending can form "cut-off"line clearly after simple secondary optics.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of LED vehicle lamp light source, comprises substrate, described substrate is provided with functional areas, described functional areas are provided with some LED chips, and described functional areas are rectangle, and the outer cofferdam that is arranged with of functional areas encloses LED chip; The end face exiting surface of each described LED chip is all coated with independently fluorescence coating. Cofferdam of the present utility model is rectangular framework, by cofferdam, the appearance of LED chip is limited, and forms linear beam spot clearly, makes car light that the dipped beam of getting can be formed to "cut-off"line; In addition, each LED chip is furnished with fluorescence coating, the light-emitting area of each LED light source approaches chip area, and the light-emitting area of each light source is less, therefore the bright dipping of the vertical light-emitting face direction of each LED chip strengthens, form linear beam spot more clearly, while making car light dipped beam, can form obvious "cut-off"line.

As improvement, described fluorescence coating is fluorescent glass. Fluorescent glass is heat-resisting, and technique is simple, can complete the fixing of LED chip and fluorescent glass by die bond machine.

As improvement, the area of described fluorescence coating is similar to the shape of the end face exiting surface of LED chip.

As improvement, in described cofferdam, be provided with the glue that is in the light, described in the glue that is in the light hide the side of LED chip. The glue that is in the light can be white glue, for the bright dipping of LED chip side is blocked, removes unnecessary veiling glare.

As improvement, described LED chip is yi word pattern to be arranged, and makes linear beam spot more clear.

As improvement, described fluorescent glass is bonded on the end face exiting surface of LED chip by heat-resistant adhesive.

The beneficial effect that the utility model compared with prior art brought is:

Each LED chip is furnished with fluorescence coating, the bright dipping of LED chip fluorescence excitation layer, therefore the bright dipping of the vertical light-emitting face direction of each LED chip strengthens, form linear beam spot more clearly, while making car light dipped beam, can form obvious "cut-off"line, and fluorescence coating adopts fluorescent glass to have better heat resistance.

Brief description of the drawings

Fig. 1 is the arrange schematic diagram of LED chip in cofferdam.

Fig. 2 is the cutaway view of the utility model car light.

Detailed description of the invention

Below in conjunction with Figure of description, the utility model is described in further detail.

As shown in Figure 1, 2, a kind of LED vehicle lamp light source, comprises rectangular substrate 1, described substrate 1 is provided with functional areas 4, described functional areas 4 are rectangle, and described functional areas 4 are provided with some LED chips 3 that yi word pattern is arranged that are, and LED chip 3 is positioned at the centre position of functional areas 4 substantially. The outer cofferdam 2 arranging along 4 edges, functional areas that is arranged with of functional areas 4, cofferdam 2 is rectangular frame structure, the end face of the aspect ratio LED chip 3 in cofferdam 2 is high, and LED chip 3 can be enclosed in a rectangular space. The end face exiting surface of each described LED chip 3 is all coated with independently fluorescence coating, the area of described fluorescence coating is similar to the shape of the end face exiting surface of LED chip 3, the fluorescence coating of the present embodiment is fluorescent glass 5, fluorescent glass 5 is heat-resisting, and construction technology is simple, can complete the fixing of LED chip 3 and fluorescent glass 5 by die bond machine. In described cofferdam 2, be filled with the glue 6 that is in the light, described in the glue 6 that is in the light hide the side of LED chip 3; The glue 6 that is in the light can be white glue, for the bright dipping of LED chip 3 sides is blocked, removes unnecessary veiling glare.

Cofferdam 2 of the present utility model is rectangular framework, by cofferdam 2, the appearance of LED chip 3 is limited, and forms linear beam spot clearly, makes car light that the dipped beam of getting can be formed to "cut-off"line; In addition, each LED chip 3 is furnished with fluorescence coating, and fluorescence coating carries out luminous intensity distribution to the bright dipping of LED chip 3, and therefore the bright dipping of the vertical light-emitting face direction of each LED chip 3 strengthens, form linear beam spot more clearly, while making car light dipped beam, can form obvious "cut-off"line.

Claims

1.A kind of LED vehicle lamp light source, comprises substrate, and described substrate is provided with functional areas, and described functional areas are provided with some LED chips, and described functional areas are rectangle, and the outer cofferdam that is arranged with of functional areas encloses LED chip; It is characterized in that: the end face exiting surface of each described LED chip is all coated with independently fluorescence coating.

2.A kind of LED vehicle lamp light source according to claim 1, is characterized in that: described fluorescence coating is fluorescent glass or fluorescence ceramics sheet.

3.A kind of LED vehicle lamp light source according to claim 1, is characterized in that: the shape of described fluorescence coating is similar to the shape of the end face exiting surface of LED chip.

4.A kind of LED vehicle lamp light source according to claim 1, is characterized in that: in described cofferdam, be provided with the glue that is in the light, described in the glue that is in the light hide the side of LED chip.

5.A kind of LED vehicle lamp light source according to claim 1, is characterized in that: described LED chip is yi word pattern and arranges.

6.A kind of LED vehicle lamp light source according to claim 2, is characterized in that: described fluorescent glass is bonded on the end face exiting surface of LED chip by heat-resistant adhesive.

7.A kind of LED vehicle lamp light source according to claim 1, is characterized in that: described LED chip is flip-chip.