CN117889397A

CN117889397A - Integrated back light

Info

Publication number: CN117889397A
Application number: CN202410176451.4A
Authority: CN
Inventors: 庞洪兴; 舒红松; 邹朝龙; 李文成; 张孟霞; 任为杰; 任宇; 胡明超; 张愿; 舒江湖; 刘珈玮
Original assignee: Chongqing Guinuo Photoelectric Technology Co ltd
Current assignee: Chongqing Guinuo Photoelectric Technology Co ltd
Priority date: 2024-02-08
Filing date: 2024-02-08
Publication date: 2024-04-16

Abstract

The invention discloses an integrated backlight, comprising at least one first light source which is configured as an elongated illuminant and is configured to generate at least one first light beam; at least one second light source, which is configured as an elongated light emitter and is provided for generating at least one second light beam; a lamp shade having a convex-rib-shaped light emitting area; and a condenser disposed between the at least one first light source, the at least one second light source, and the bead-like light emitting region. The invention has the advantages of ingenious and reasonable structural design, convenience and practicability.

Description

Integrated back light

Technical Field

The invention relates to the technical field of automobile lamps, in particular to an integrated rear lamp.

Background

At present, in various automobiles, most of automobile rear combination lamps are formed by combining a brake lamp, a position lamp, a steering lamp and a reversing lamp, and the rear combination lamps are required to meet the requirements of light distribution performance, high and low temperature resistance, vibration resistance, salt fog resistance, water resistance, dust resistance and other environmental durability performances according to the national standard requirements, and simultaneously have the functions of electric dimming and the like.

The existing automobile lamp shade adopts the conventional wall thickness design, the optical scheme design is carried out in the lamp, and the lamp shade only has the function of sealing the lamp and has a single function.

Disclosure of Invention

Aiming at the problems in the related art, the invention provides an integrated back light with a compact structure.

For this purpose, the invention adopts the following specific technical scheme:

An integrated back light, comprising,

At least one first light source, which is configured as an elongated illuminant and is provided for generating at least one first light beam;

At least one second light source, which is configured as an elongated light emitter and is provided for generating at least one second light beam;

a lamp shade having a convex-rib-shaped light emitting area; and

A light concentrator disposed between the at least one first light source, the at least one second light source, and the rib-like light emitting region, the light concentrator configured to direct the at least one first light beam, the at least one second light beam, to the rib-like light emitting region such that the rib-like light emitting region emits light for forming a predetermined type of light distribution.

In a possible design, the first light source radiates light in a first spectral range and the second light source radiates light in a second spectral range, wherein the first spectral range does not overlap the second spectral range.

In a possible design, the first light source radiates light in a first spectral range and the second light source radiates light in a second spectral range, wherein the first spectral range at least partially overlaps the second spectral range.

In one possible design, the condenser is constructed integrally with the lamp housing.

In one possible design, the bead-type light emitting region includes a first light emitting section corresponding to the first light beam, and a second light emitting section corresponding to the second light beam.

In a possible embodiment, the first light source, the second light source, the first light-emitting section and the second light-emitting section are each provided in two, the two second light sources being located between the two first light sources, the two second light-emitting sections being located between the two first light-emitting sections.

In a possible design, the predetermined type of light distribution is a rear fog light distribution or a reverse light distribution.

In a possible design, the lamp housing further comprises a lamp housing forming a component together with the lamp housing, said lamp housing being configured for mounting said first light source, said second light source.

In one possible design, the lamp housing is made of aluminum or aluminum alloy.

In one possible design, the first light source and the second light source are both LED light sources.

Compared with the prior art, the invention has the beneficial effects that:

The first light source and the second light source can respectively play a role of radiating light beams, the maximum bright point of the invention is that the convex rib-shaped luminous area is integrally formed on the lampshade, the lamp is novel in shape and high in functionality, the light beams at the first light source and the second light source can be concentrated in the convex rib-shaped luminous area to be emitted, the integration of the first light source and the second light source is realized, the integration of the lampshade and the convex rib-shaped luminous area is realized, the condenser is also integrated on the inner side of the lampshade, the position corresponds to the convex rib-shaped luminous area, the condenser and the convex rib-shaped luminous area are integrally arranged, the setting of a part of a lens is reduced, meanwhile, the optimization on a die is realized, the die opening of the lens is not performed, the cost is saved, the lamp volume is reduced, more space is reserved for other parts of a vehicle body, the light beam conduction path is shortened, and the refraction of the light beam is avoided.

Preferably, the condenser and the lamp shade are integrally formed, and the condenser can directly transmit the light beams of the first light source and the second light source to the convex rib-shaped luminous area for emission after being gathered, so that the light beam conduction path is greatly simplified, the assembly is simplified, and the structure is compact.

The convex rib-shaped luminous area is more special, protrudes outwards from the lampshade to form a thickened area, so that the light beam can be fully emitted and reach a set distance, the convex rib-shaped luminous area can directly guide the light to meet the luminous intensity of each visual angle required by regulations, other optical patterns are not required to be made on the front surface to guide the light to spread, meanwhile, the processing flow of the optical element is simplified, and the manufacturing period is shortened.

The lamp has novel appearance, small size, light weight and low cost, is suitable for various automobile appearance models, and has strong universality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a B-B cross-sectional view of FIG. 2;

FIG. 5 is a cross-sectional view taken along the direction C-C of FIG. 2;

fig. 6 is a light distribution simulation test diagram of a rear fog lamp in an embodiment of the invention;

FIG. 7 is a diagram of a simulated test of the light distribution of a backup lamp in an embodiment of the invention;

Fig. 8 is a diagram of a backup lamp road illumination simulation test in an embodiment of the invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

For the purpose of further illustrating the various embodiments, the present invention provides the accompanying drawings, which are a part of the disclosure of the present invention, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present invention, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Reference numerals illustrate: rib 1, lamp shade 2, lamp body 3, spotlight ware 4, backup lamp 5, back fog lamp 6.

Referring to fig. 1-5, the present embodiment provides an integrated back light, comprising,

A lamp shade 2 having a convex-rib-shaped light emitting area; and

A light concentrator arranged between the at least one first light source, the at least one second light source and the rib-like light emitting area, the light concentrator 4 being arranged to direct the at least one first light beam, the at least one second light beam to the rib-like light emitting area, whereby the rib-like light emitting area emits light for forming a predetermined type of light distribution.

Specifically, the shape of the convex rib can be a strip shape or a cuboid, or the whole body is a cuboid, but the two ends are rounded; the joint of the convex edge-shaped luminous area and the lampshade main body is subjected to gradient transition or rounding treatment to form natural transition, so that light dissipation is reduced.

The outer side surface of the lampshade is provided with a convex rib 1 structure, and the inner side surface of the lampshade is provided with an optical function curved surface; the convex rib 1 structure is arranged on the outer side surface of the lampshade, and the optical function curved surface is arranged on the inner side surface of the lampshade, so that the requirements of the automobile lamp on regulation are met, and the lampshade has both a sealing function and an optical function.

The structure size of the lampshade rib is 58-65 mm long, the thickness of the lampshade rib is 5-8 mm, the thickness of the lampshade rib represents the width of the luminous surface of the lamp, the width of the luminous surface has an effect on luminous values of different visual angles meeting the requirements of regulations, and the thickness of the condenser is designed according to the luminous surface; the distance between the condenser and the light source can influence the use efficiency of the luminous flux of the light source, the light distribution value which cannot meet the requirement of regulations is caused by the fact that the light flux utilization rate is lower due to the fact that the distance is large, the heat generated by the light source is concentrated due to the fact that the distance is small, the temperature is increased, and the heat resistance of the material of the light distribution lens cannot be met.

In at least one embodiment, the first light source radiates light in a first spectral range and the second light source radiates light in a second spectral range, wherein the first spectral range does not overlap with the second spectral range.

In at least one embodiment, the first light source radiates light in a first spectral range and the second light source radiates light in a second spectral range, wherein the first spectral range at least partially overlaps the second spectral range.

In at least one embodiment, the concentrator is integrally constructed with the lamp housing.

In at least one embodiment, the bead shaped light emitting region includes a first light emitting section corresponding to a first light beam, a second light emitting section corresponding to a second light beam.

In at least one embodiment, the first light source, the second light source, the first light emitting section, and the second light emitting section are all provided in two, the two second light sources are located between the two first light sources, and the two second light emitting sections are located between the two first light emitting sections.

In at least one embodiment, the predetermined type of light distribution is a rear fog light 6 light distribution or a reverse 5 light distribution.

In at least one embodiment, the lamp housing 3 is further formed into a component together with the lamp housing, and the lamp housing 3 is configured to mount the first light source and the second light source.

In at least one embodiment, the material of the lamp housing 3 is aluminum or aluminum alloy, and the back of the lamp housing 3 is provided with a plurality of cooling fins, and the cooling fins are protruding and are arranged at intervals.

In at least one embodiment, the first light source and the second light source are both LED light sources. The lampshade is transparent white, the rear fog lamp 6 uses 2 red LEDs as light sources, and the backup lamp 5 uses 2 white LEDs as light sources. As shown in fig. 4 and 5, the two LEDs diffuse light to different geometric visible angles through different optical function curved surfaces on the inner side of the lampshade, the simulation values are as shown in fig. 6-8, the requirements of light distribution and road regulation are respectively realized, the rear fog lamp meets the requirements of GB11554 on the light distribution performance of the rear fog lamp of an automobile and a trailer, GB 4785-2019 on the mounting regulation of the external illumination and optical signal device of the automobile and the trailer, and the backup lamp meets the requirements of GB15235 on the light distribution performance of the backup lamp of the automobile and the trailer, and GB 4785-2019 on the mounting regulation of the external illumination and optical signal device of the automobile and the trailer; the LED module is structurally pressed by the lens, the lens is made of PC material, the lamp housing is made of cast aluminum material, the lamp housing plays a role in heat dissipation, the glass housing is connected in an adhesive mode, and two self-tapping screws are used for locking.

Claims

1. An integrated rear lamp, comprising,

a lamp shade having a convex-rib-shaped light emitting area; and

2. The integrated backlight of claim 1, wherein the first light source radiates light in a first spectral range and the second light source radiates light in a second spectral range, wherein the first spectral range does not overlap the second spectral range.

3. The integrated backlight of claim 1, wherein the first light source radiates light in a first spectral range and the second light source radiates light in a second spectral range, wherein the first spectral range at least partially overlaps the second spectral range.

4. An integrated backlight as claimed in any one of claims 1 to 3, wherein the condenser is constructed integrally with the lamp housing.

5. The integrated backlight of claim 4, wherein the bead light emitting region comprises a first light emitting section corresponding to a first light beam, a second light emitting section corresponding to a second light beam.

6. The integrated backlight of claim 5, wherein the first light source, the second light source, the first light emitting section, and the second light emitting section are each two, the two second light sources are located between the two first light sources, and the two second light emitting sections are located between the two first light emitting sections.

7. The integrated rear light of any one of claims 1-3, 5 or 6, wherein the predetermined type of light distribution is a rear fog light distribution or a reverse light distribution.

8. The integrated rear light of any one of claims 1-3, 5, or 6, further comprising a lamp housing that forms an assembly with the lamp housing, the lamp housing configured to mount the first light source and the second light source.

9. The integrated rear lamp as set forth in claim 8, wherein the lamp housing is made of aluminum or aluminum alloy.

10. The integrated backlight of any of claims 1-3, 5, 6, or 9, wherein the first light source and the second light source are both LED light sources.