CN210511494U

CN210511494U - Lampshade structure in automobile signal lamp and automobile lamp

Info

Publication number: CN210511494U
Application number: CN201921128084.1U
Authority: CN
Inventors: 姜思思
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-05-12
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to a lamp shade structure and car light in automotive signal lamp, interior lamp shade includes the base, the base is equipped with a plurality of boss seat, and is a plurality of along being equipped with on the direction of height the size of boss seat is followed the base is more and more littleer along the direction of height, the internal surface and the surface of base and boss seat all are equipped with the decorative pattern. This application adopts lamp shade in the boss formula design, utilizes the low molding of the high outer lane of inner circle, shortens the distance between outer lane light emitting area and the LED light source, has effectively improved the LED radiant light intensity that outer lane light emitting area received, has compensatied the outer lane light emitting area because skew LED light source normal direction and the defect of light intensity weak to the effect of lighting of the whole light emitting area of inner and outer lane has been guaranteed more evenly.

Description

Lampshade structure in automobile signal lamp and automobile lamp

Technical Field

The utility model relates to an automobile lamp technical field, specific field is a lamp shade structure and car light in car signal lamp.

Background

With the development of the automobile industry, the light source of the automobile tail signal lamp is from the traditional halogen bulb to the LED light source which is more and more popular nowadays, and the fashion trend of the signal lamp model is also developed from the original granular luminous surface to the luminous surface which is more and more pursuing uniformity. In order to reach even effect of lighting, except the reflection formula design that adopts the speculum, lamp shade is mostly thick wall formula structure in the car light of direct injection formula design, and the internal surface is the spotlight ware promptly, and the surface is the interior lamp shade structure of kernel of corn decorative pattern. However, the thick-wall inner lampshade structure generally needs a plurality of LEDs to complete a larger light emitting surface, and the distance between the LEDs cannot be too large, otherwise the light emitting surface has granular sensation. The thick-wall inner lampshade has the defects of large thickness, material waste, high cost and heavy weight, and increases difficulty for the injection molding process.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the poor problem of effect homogeneity of lighting, the utility model provides a lamp shade structure and car light in the automotive signal lamp, interior lamp shade includes the base, the base is equipped with a plurality of boss seat, a plurality of along the direction of height the size of boss seat is followed the base is along increasing littleer in the direction of height, the internal surface and the surface of base and boss seat all are equipped with the decorative pattern.

Preferably, the center line of the plurality of boss bases coincides with the center line of the base. Utilize the molding that the high outer lane of inner circle is low, form the interior lamp shade of boss formula, shorten the distance between outer lane light emitting area and the LED light source, effectively improve the LED radiant light intensity that outer lane light emitting area received, boss seat center and base center are on a central line, compensate the outer lane light emitting area because skew LED light source normal direction and the defect of light intensity weak, thereby guarantee that the effect of lighting of the whole light emitting area of interior outer lane is more even, the boss formula design has still reduced the wall thickness of interior lamp shade simultaneously, the requirement of the technology of moulding plastics has been reduced, the cost is reduced, the lamp weight is lightened.

Further, the shape of the boss seat is circular, square or rhombic.

Preferably, the inner surfaces of the base and the top of the boss base are provided with fresnel patterns. The Fresnel patterns of the inner surface of the inner lamp shade are respectively positioned on two inner surfaces with different heights of the inner lamp shade in the boss type, the Fresnel patterns on the inner surface with high height are of a refraction type, the Fresnel patterns on the inner surface with high height are of a total reflection type, and because the angle of the LED light received on the inner surface with small height of the outer ring deviates from the normal direction, the total reflection type Fresnel patterns can collect the LED light more efficiently, so that the optical efficiency is improved, and the better lighting uniformity is also obtained.

Furthermore, the outer surfaces of the top parts of the base and the boss base are provided with corn grain patterns or visual patterns. The parallel light that fresnel pattern produced is diffused away to kernel of corn decorative pattern through interior lamp shade surface, satisfies the light intensity distribution of signal lamp law requirement, and this kernel of corn decorative pattern is the array and distributes, can obtain better homogeneity of lighting. The visible angle patterns are used for carrying out total reflection on the parallel light generated by the Fresnel patterns to reach the visible angle position required by the regulation, and the visible angle patterns can be arranged in one row or multiple rows.

Preferably, the kernel pattern and the visible angle pattern are spaced apart on the outer surface of the top of the base and the pedestal.

Further, the wall thickness of the inner lampshade is 1-5 mm.

Preferably, the invention further provides the car lamp, wherein the inner lamp cover is arranged on the LED circuit board, and the LED circuit board is provided with the LED light source.

Has the advantages that: the LED lighting device can obtain a uniform lighting effect on a larger light-emitting surface by using only one LED light source, and the light source is simple; in order to better adapt to the radiation characteristics that the light intensity in the normal direction of the LED light source is the maximum, and the light intensity is smaller when the angle deviated from the normal direction is larger, the inner lampshade is designed in a boss type mode, the distance between the light emitting surface of the outer ring and the LED light source is shortened by utilizing the shape that the inner ring is higher and the outer ring is lower, the LED radiation light intensity received by the light emitting surface of the outer ring is effectively improved, the defect that the light intensity of the light emitting surface of the outer ring is weakened when the light emitting surface of the outer ring deviates from the normal direction of; another advantage of the lampshade in the boss type design is that the wall thickness is reduced to a great extent, the material cost is saved, the lamp weight is reduced, the process difficulty is also reduced, the undesirable phenomena of shrinkage and the like easily caused by thick-wall injection molding are avoided, and the quality problems that the lamp does not meet the optical requirements of regulations and the like are prevented.

Drawings

FIG. 1 is a light path diagram of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a top view of the present invention;

1. an LED light source; 2. an led circuit board; 3. fresnel patterns; 4. grain of corn decorative pattern;

5. visual pattern; 6. an inner lampshade; 7. a base; 8. boss seat

Detailed Description

Example 1

As shown in fig. 1, a lamp shade structure and car light in automotive signal lamp, interior lamp shade 6 includes base 7, base 7 is equipped with a plurality of boss seat 8 along the direction of height, and is a plurality of boss seat 8's size is followed base 7 is along the direction of height on more and more littleer, base 7 sets up on LED circuit board 2, be equipped with LED light source 1 on the LED circuit board 2, the internal surface and the surface of base 7 and boss seat 8 all are equipped with the decorative pattern. The LED light source 1 corresponds to the center position of the inner surface pattern of the inner lampshade 6. The wall thickness of the inner lampshade 6 is 1-5 mm. (the embodiment is explained by a convex pedestal 8), and the center lines of a plurality of convex pedestals 8 are coincident with the center line of the base 7. The light-emitting surface of the inner lampshade 6 is formed by two or more convex table surfaces with different heights, the distance between the light-emitting surface of the inner ring part and the LED light source 1 is large, and the distance between the light-emitting surface of the outer ring part and the LED light source 1 is small. The shape of the boss 8 is circular, square or diamond, the embodiment is described as circular, and the inner surfaces of the top of the base 7 and the boss 8 are provided with the fresnel patterns 3. The Fresnel patterns 3 on the inner surface with the large height of the inner ring are of a refraction type, the Fresnel patterns 3 on the inner surface with the small height of the outer ring are of a total reflection type, and because the angle of the LED light rays received on the inner surface with the small height of the outer ring deviating from the normal direction is large, the total reflection type Fresnel patterns 3 can collect the LED light rays more efficiently, the optical efficiency is improved, and the better lighting uniformity is obtained. The outer surface of the top of the base 7 and the convex pedestal 8 is provided with a corn grain pattern 4 or a visual pattern 5. The parallel light diffusion that fresnel pattern 3 produced is gone out to kernel of corn decorative pattern 4 through 6 surfaces of inner lamp covers, satisfies the light intensity distribution that signal lamp law required, and this kernel of corn decorative pattern 4 is the array and distributes, can obtain better homogeneity of lighting. The parallel light generated by the Fresnel patterns 3 is totally reflected to reach the visible angle position required by the regulation through the visible angle patterns 5 on the outer surface of the inner lampshade 6. The application has also introduced a car light, and this car light includes as above interior lamp shade 6 setting on LED circuit board 2, be equipped with LED light source 1 on the LED circuit board 2 and ensure to reach the interior lamp shade structure of car light of above technological effect, this car light can be followed and be used for on other motorcycle types.

Example 2

The only difference from example 1 is that: the corn kernel patterns 4 and the visible angle patterns 5 are arranged on the outer surfaces of the tops of the base 7 and the boss base 8 at intervals.

Claims

1. The utility model provides a lamp house structure in automotive signal lamp which characterized in that: interior lamp shade (6) are including base (7), be equipped with a plurality of boss seat (8) on base (7) along the direction of height, it is a plurality of the size of boss seat (8) is followed base (7) are along the direction of height on less and less, the internal surface and the surface of base (7) and boss seat (8) all are equipped with the decorative pattern.

2. The cover structure in a signal lamp of an automobile according to claim 1, characterized in that: the center line of the boss seat (8) is coincided with the center line of the base (7).

3. The cover structure in a signal lamp of an automobile according to claim 1, characterized in that: the shape of the boss seat (8) is round, square or diamond.

4. The cover structure in a signal lamp of an automobile according to claim 1, characterized in that: the inner surfaces of the tops of the base (7) and the boss base (8) are provided with Fresnel patterns (3).

5. The cover structure in a signal lamp of an automobile according to claim 1, characterized in that: the outer surface at base (7) and boss seat (8) top is equipped with kernel of corn decorative pattern (4) or visual pattern (5).

6. The cover structure in a signal lamp of an automobile according to claim 5, characterized in that: kernel of corn decorative pattern (4) and visual angle decorative pattern (5) interval set up and are in the surface at the top of base (7) and boss seat (8).

7. The cover structure in a signal lamp of an automobile according to claim 1, characterized in that: the wall thickness of the inner lampshade (6) is 1-5 mm.

8. A vehicle lamp, characterized in that: the inner lamp shade structure of the car lamp comprises the inner lamp shade structure as claimed in any one of claims 1 to 7, wherein the inner lamp shade (6) is arranged on the LED circuit board (2), and the LED light source (1) is arranged on the LED circuit board (2).