CN201072056Y - Third brake lamp structure - Google Patents

Abstract

The utility model provides a third brake lamp structure, which comprises a light pipe, a shell and a light emitting diode; the side of the light pipe is provided with inorganic light guide coating, two ends of the light pipe are respectively provided with a light emitting diode, the shell covers the light pipe and is provided with a reflecting layer, the reflecting layer is arranged along the periphery of the light pipe and is positioned on the back of the inorganic light guide coating, and the light of the light emitting diode is scattered or reflected by the light pipe, the inorganic light guide coating and the reflecting layer to enable the light pipe to uniformly emit light, so that the quantity of the used light emitting diodes can be reduced, the electricity consumption is saved, the service life of the light emitting diode is prolonged, and the.

Description

Structure of the third brake light

technical field

The utility model relates to a vehicle light device, in particular to an economical and high-efficiency third brake light structure.

Background technique

Light Emitting Diode (LED), without the use of glass, mercury or toxic gases, is not only environmentally friendly but also fast in response, long in life and high in reliability. Highmounted stop lamp (CHMSL) can not only improve driving safety but also reduce car maintenance costs, but because LED is a point light source, its first-generation technology requires 76 red light-emitting diodes to obtain performance equivalent to 2 or 3 incandescent lamps. The use of light-emitting diodes has no cost advantage. The number of light-emitting diodes required by the second-generation technology has been reduced to 48, and the current technology can further reduce this number to 10-20. Figure 1 shows the third-generation LEDs currently on the market. The brake light structure 10 uses more than 10 light emitting diodes (14, 16) as light sources, but if the first light emitting diode 14 is not on, only the second light emitting diode 16 is left to emit light, which will make the third brake light structure 10 emit light Uneven, and compared with incandescent lamps, LEDs do not generate high heat when they emit light, but they cannot withstand heat. If the temperature of LEDs increases, their lifespan will be reduced. Therefore, if the number of LEDs used in the third brake light is large or the density Higher, still inevitably reduce its service life.

In view of this, the utility model proposes a third brake light structure to overcome the above-mentioned defects.

Utility model content

The purpose of the utility model is to propose a third brake light structure which can emit light evenly by using less light-emitting diodes.

In order to achieve the above-mentioned purpose, the utility model proposes a third brake light structure, which includes a light guide tube with light-emitting diodes at both ends and a shell covering the light guide tube. The side of the light guide tube has an inorganic light guide coating, the housing has a light-reflecting layer and is connected to both ends of the light-guiding pipe, and the light-reflecting layer is arranged along the periphery of the light-guiding pipe and is located on the back of the inorganic light-guiding paint, so that the light of the light-emitting diode can be diffused by the light-guiding pipe or It is the reflection of the inorganic light-guiding coating and the reflective layer.

Preferably, the casing is long.

Preferably, the light pipe is long.

The utility model uses a small number of light-emitting diode light sources to cooperate with light-guiding pipes with inorganic light-guiding paint and a housing with a light-reflecting layer to emit light evenly, which can reduce the number of light-emitting diode light sources used, prolong the service life of light-emitting diodes and save energy. Improve economic efficiency.

Description of drawings

Below, specific embodiments will be described in detail in conjunction with the accompanying drawings, so that it is easier to understand the purpose, technical content, features and effects of the present utility model.

Fig. 1 is a three-dimensional structure diagram of a conventional third brake light.

Fig. 2 is a three-dimensional structure diagram of the utility model.

Fig. 3 is an exploded view of the three-dimensional structure of the utility model.

Fig. 4 is a sectional view of the side structure of the utility model.

10 Existing third brake light structure

12 Shell

14 First LED

16 Second LED

20 The third brake light structure of the utility model

22 Shell

221 Cover

221a light-transmitting surface

222 lower cover

222a opening

222b reflective layer

24 light pipe

24a Scarf

24b Inorganic light guide coating

26 LEDs

26a pin

Detailed ways

The third brake light structure proposed by the utility model utilizes a housing with a light-reflecting layer and a light-guiding tube with inorganic light-guiding paint on the side and light-emitting diodes at both ends, and makes full use of the light emitted by the light-emitting diodes to emit light evenly.

As shown in Fig. 2, Fig. 3 and Fig. 4, the third brake light structure 20 of the present invention includes a housing 22, a light guide tube 24 and a light emitting diode 26, and the housing 22 and the light guide tube 24 are elongated; and The casing 22 is composed of an upper cover 221 and a lower cover 222, and the light guide tube 24 is made of transparent plastic material, which is located inside the casing 22 and its two ends are respectively connected and fixed to both sides of the lower cover 222; Both ends of the light pipe 24 are provided with embedding portions 24a for embedding the LEDs 26, and the openings 222a at both ends of the lower cover 222 allow the pins 26a of the LEDs 26 to pass through and be connected to a power supply (not shown in the figure). In addition, the side of the light guide pipe 24 is coated with an inorganic light guide paint 24b, and the inner side of the lower cover 222 has a reflective layer 222b. The front side has a transparent surface 221a.

Therefore, the light emitted by the light-emitting diode 26 is scattered by the light guide 24 and reflected by the inorganic light guide coating 24b, so that the light guide 24 emits light evenly, and then the light emitted by the light guide 24 is collected and reflected by the light-transmitting layer 222b. The surface 221a emits light, so that the third brake light structure 20 can emit light uniformly only by using a small number of light emitting diodes 26, reducing the number of light emitting diodes 26 used and saving power consumption.

The third brake light is generally arranged at the center of the rear of the car, such as on the rear compartment cover, and it will be activated when the driver steps on the brakes to ensure driving safety. The present invention is the same as the existing third brake light using light-emitting diodes , besides the advantage of being able to start quickly, the light guide tube of the third brake light can be evenly illuminated by using only a small amount of light-emitting diodes, which can solve the problem of light emitted when some light-emitting diodes of the existing third brake light are not on. In order to reduce the probability of misjudgment by other drivers.

The features of the present utility model are described above by means of the embodiments, the purpose of which is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly, rather than to limit the protection scope of the present utility model, so all others do not depart from the utility model Equivalent modifications or modifications accomplished with the disclosed spirit should still be included in the protection scope of the present application.

Claims (3)

1. brake lamp structure is characterized in that comprising:

One light pipe, its side have inorganic leaded light coating;

At least two light emitting diodes are arranged at this light pipe two ends respectively; And

One housing coats this light pipe and is connected with its two ends, and this housing has a reflector layer, and described reflector layer is along this light pipe periphery setting and be positioned at this inorganic leaded light coating back side.

2. the 3rd brake lamp structure as claimed in claim 1 is characterized in that: this housing is a strip.

3. the 3rd brake lamp structure as claimed in claim 1 is characterized in that: this light pipe is a strip.

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