CN205174251U

CN205174251U - Car light thick wall light guide structure

Info

Publication number: CN205174251U
Application number: CN201520997287.XU
Authority: CN
Inventors: 沈煜琦; 项叶
Original assignee: Shanghai Koito Automotive Lamp Co Ltd
Current assignee: Hasco Vision Technology Co Ltd
Priority date: 2015-12-03
Filing date: 2015-12-03
Publication date: 2016-04-20
Anticipated expiration: 2025-12-03

Abstract

The utility model relates to a car light thick wall light guide structure belongs to car car light design technical field. A car light thick wall light guide structure which characterized in that: including LED circuit board (1), LED (2), thick wall light pipe (4), install under LED circuit board (1) LED (2), the paraboloidal upper portion of thick wall light pipe (4) reflection, with LED (2) just right position department, be equipped with step (4a), the position that all diffusion decorative patterns (4b) were gone up in thick wall light pipe (4) all is located the below of step (4a). The utility model discloses a change the structure of thick wall light pipe, according to LED's luminous angle, arrange at the thick wall light pipe that one side of LED increases the step of corresponding height, make sending out a light zone territory and can both getting to the direct light of thick wall light pipe, eliminate the dark space, improve the function homogeneity of lighting a lamp.

Description

A kind of car light heavy wall guide structure

Technical field

The utility model relates to a kind of car light heavy wall guide structure, belongs to automobile lamp design field.

Background technology

In the Design of Luminaires in modern times, moulding is more and more diversified, and the utilization of heavy wall light pipe is also more and more general, and position lamp, steering indicating light, Brake lamp, Rear Fog Lamp etc., various function can see the figure of heavy wall light pipe.But for the light fixture that structure comparison is compact, LED is usually arranged in above light pipe or below, but not dead astern, due to the limitation of the lower scope of LED scattering, often produce dark space near LED side, cause lighting uneven, affect the modeling effect during lighting of function.Under the prerequisite meeting regulation, uniform lighting effect is the target that current Ge great main engine plants are pursued.

Be arranged in above heavy wall light pipe for LED, in accompanying drawing 1, accompanying drawing 2,1 is LED circuit board, and 2 is LED, and 3 is heavy wall light pipe, and S1 represents light-emitting zone.

Can find in Fig. 1-2, the optical principle of this form is: the light beam of LED is downward, and the parabola below it can receive the light of LED injection, and the direction of changing section LED light, the light portion penetrated from LED is reflexed to horizontal front to realize.

Suppose that the angle of flare of LED light bundle is 90 degree, namely monolateral 45 degree, be not difficult to find from Fig. 2, due to LED light bundle range of scatter, front has four to spread decorative pattern from top to bottom, and the top a slice spreads the LED light line that decorative pattern does not have to reflect back from rear reflection face substantially, namely this sheet diffusion decorative pattern is dark, light-emitting zone S1 has only covered 3 diffusion decorative patterns, now just to occur above mentioned, the dark space occurred near LED side.

Summary of the invention

The utility model technical issues that need to address are: existing car light heavy wall guide structure, due to the limitation of the lower scope of LED scattering, often produce dark space, cause lighting uneven, affect the modeling effect during lighting of function near LED side.

The utility model takes following technical scheme:

A kind of car light heavy wall guide structure, comprises LED circuit board 1, LED2, heavy wall light pipe 4; Described LED2 is installed on immediately below LED circuit board 1, the topmost of described heavy wall light pipe 4 reflection paraboloid, the position just right with LED2, be provided with step 4a, the position of diffusion decorative pattern 4b all on described heavy wall light pipe 4 is all positioned at the below of described step 4a.

At heavy wall light pipe, the technical program, by changing the structure of heavy wall light pipe, according to the lighting angle of LED, is arranged that side of LED increases the step of corresponding height, is made the light-emitting zone of heavy wall light pipe get to direct light.

Further, the scope of the luminescence diffusion of described LED is ± 45 °.

Further, described heavy wall light pipe 4 is provided with four diffusion decorative pattern 4b.

Further, described car light is any one in position lamp, steering indicating light, Brake lamp, Rear Fog Lamp.

The beneficial effects of the utility model are:

1) according to the lighting angle of LED, arrange that side of LED increases the step of corresponding height at heavy wall light pipe, make the light-emitting zone of heavy wall light pipe get to direct light.

2) avoid the dark space of heavy wall guide structure near LED side, lighting evenly, modeling effect is more.

3) smart structural design, realizes easily, obviously not increasing cost.

4) there is the prospect of wide popularization and application.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of heavy wall guide structure in prior art.

Fig. 2 is in background technology, and the heavy wall guide structure of introduction and LED spread the schematic diagram of range of exposures.

Fig. 3 is the schematic diagram of the utility model heavy wall guide structure.

In figure, 1.LED wiring board, 2.LED, the heavy wall light pipe 3. in background technology, 4. heavy wall light pipe of the present utility model; 4a. step, 4b. spreads decorative pattern.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.

See Fig. 3, a kind of car light heavy wall guide structure, comprises LED circuit board 1, LED2, heavy wall light pipe 4; Described LED2 is installed on immediately below LED circuit board 1, the topmost of described heavy wall light pipe 4 reflection paraboloid, the position just right with LED2, be provided with step 4a, the position of diffusion decorative pattern 4b all on described heavy wall light pipe 4 is all positioned at the below of described step 4a.

See Fig. 3, the scope of the luminescence diffusion of described LED is ± 45 °.

See Fig. 3, described heavy wall light pipe 4 is provided with four diffusion decorative pattern 4b.

Described car light is any one in position lamp, steering indicating light, Brake lamp, Rear Fog Lamp.

Find from Fig. 3, after the heavy wall light pipe immediately below LED increases step, 4 decorative patterns in front have received the LED light line reflected back from rear reflection face, 4 decorative patterns are all beaten bright by light, light-emitting zone is S2, compared with the S1 in Fig. 2, S2 has covered 4 diffusion decorative patterns, and such dark space just eliminates.

The utility model is by changing the structure of heavy wall light pipe, according to the lighting angle of LED, arrange that side of LED increases the step of corresponding height at heavy wall light pipe, make the light-emitting zone of heavy wall light pipe get to direct light, eliminate dark space, improve function lighting uniformity.

Claims

1. a car light heavy wall guide structure, is characterized in that:

Comprise LED circuit board (1), LED (2), heavy wall light pipe (4);

Described LED (2) is installed on immediately below LED circuit board (1), the topmost of described heavy wall light pipe (4) reflection paraboloid, the position just right with LED (2), be provided with step (4a), the position of the upper all diffusion decorative patterns (4b) of described heavy wall light pipe (4) is all positioned at the below of described step (4a).

2. car light heavy wall guide structure as claimed in claim 1, is characterized in that: the scope of the luminescence diffusion of described LED is ± 45 °.

3. car light heavy wall guide structure as claimed in claim 1, is characterized in that: described heavy wall light pipe (4) is provided with four diffusions decorative pattern (4b).

4. car light heavy wall guide structure as claimed in claim 1, is characterized in that: described car light is any one in position lamp, steering indicating light, Brake lamp, Rear Fog Lamp.