CN220770899U

CN220770899U - Luminous device capable of improving light efficiency

Info

Publication number: CN220770899U
Application number: CN202322535203.8U
Authority: CN
Inventors: 贾云杰; 韦欢亮
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2024-04-12
Anticipated expiration: 2033-09-18

Abstract

The disclosure relates to the technical field of illumination, in particular to car lamp illumination, and particularly relates to a light-emitting device with improved light efficiency, comprising a light source module and a reflecting piece, wherein the reflecting piece is used for reflecting light rays emitted by the light source module; the thick-wall member is arranged on one side of the reflecting member, the thick-wall member is provided with a light inlet surface, a light outlet surface and a light collecting surface, the directions of the light inlet surface and the light outlet surface are consistent with the light outlet direction of the reflecting member, the light inlet surface is close to the reflecting member, one side of the light collecting surface close to the light outlet surface is obliquely arranged towards the central line of the thick-wall member arranged along the light outlet direction of the reflecting member, and the light collecting surface reflects light entering the thick-wall member towards the light inlet surface. The light is reflected and utilized to the light through the light condensation surface on the thick-wall piece, and the overall light efficiency of the light-emitting device is improved.

Description

Luminous device capable of improving light efficiency

Technical Field

The disclosure relates to the technical field of illumination, in particular to illumination of a car lamp, and particularly relates to a light-emitting device capable of improving light efficiency.

Background

With the development of technology, vehicle lamps have not been available to meet the functional requirements of lighting indicators. The importance of automotive lights for the appearance of automobiles, just as the importance of human eyes for personal images, has been continuously improved in recent century in the development history of automobiles, in terms of industrial manufacturing ability and chemical ability, from the initial mere illumination to the current implantation for night vision, decoration and brand characteristics. More and more automobiles require diversified lamp models, compact space, attractive appearance and slender design.

In the signal lights of existing vehicles, thick-walled parts have been increasingly used. The light emitted by the light source can be emitted from the light emitting surface of the thick-wall member after being reflected. In order to improve the light efficiency of entering the thick-wall member, the reflecting member is arranged between the light source and the thick-wall member to reflect the light emitted by the light source into light rays propagating along the same direction, and in order to facilitate the connection between the thick-wall member and the reflecting member, the thick-wall member is arranged in a T shape, but after the thick-wall member is arranged in the T shape, part of the light entering the thick-wall member is easy to be blocked, so that the light is difficult to be emitted from the thick-wall member, and the light efficiency is reduced.

Disclosure of Invention

The utility model aims to solve the technical problems that: the existing automobile signal lamp has lower light effect.

To this end, the present utility model provides a light emitting device having improved light efficiency.

The technical scheme adopted for solving the technical problems is as follows:

a light emitting device with improved light efficiency, comprising:

light source module

The reflecting piece is used for reflecting light rays emitted by the light source module;

the thick-wall member is arranged on one side of the reflecting member, the thick-wall member is provided with a light inlet surface, a light outlet surface and a light collecting surface, the directions of the light inlet surface and the light outlet surface are consistent with the light outlet direction of the reflecting member, the light inlet surface is close to the reflecting member, one side of the light collecting surface close to the light outlet surface is obliquely arranged towards the central line of the thick-wall member arranged along the light outlet direction of the reflecting member, and the light collecting surface reflects light entering the thick-wall member towards the light inlet surface.

Through adopting above-mentioned technical scheme, the light that light source module sent gets into thick-walled piece through going into the plain noodles after the reflection of reflector, and partial light does not change the light propagation direction and directly follows out the plain noodles and jet out, and after the plain noodles was thrown to the condensing surface to partial light, through the reflection of condensing surface, on the reflection to going into the plain noodles, the light that is reflected back into the plain noodles can be returned into reflector through going into the plain noodles again, gets into thick-walled piece through going into the plain noodles through the reflection of reflector again for the light that light source module sent all can follow out the plain noodles after the reflection, and then improves the light efficiency.

Further, an anti-collision surface is arranged between the light incident surface and the light collecting surface.

Through adopting above-mentioned technical scheme, the setting of anticollision face makes and forms the chamfer between condensing face and the income plain noodles, compares and directly buckles the transition between income plain noodles and condensing face and forms sharp closed angle on the thick wall spare, and the setting of anticollision face has reduced the thick wall spare and has received the possibility that the striking produced the damage.

Further, the wall thickness member comprises a decorative frame, wherein the decorative frame is positioned on two sides of the thick-wall member along the direction of the light-emitting surface.

Further, the projection range of the orthographic projection of the decorative frame on the plane perpendicular to the light emitting direction of the thick-wall member exceeds the edges of the light incident surface and the reflecting member of the thick-wall member.

Further, the thick-wall member is provided with a mounting surface, the mounting surface is located between the light-emitting surface and the light-collecting surface, the mounting surface is opposite to the decorative frame, and one end of the decorative frame, which is close to the light-emitting surface, does not exceed the light-emitting surface along the direction of the light-emitting surface.

Further, along the direction of the light emitting surface, the projection length of the side wall, opposite to the mounting surface, on the mounting surface of the decorative frame is smaller than the length of the mounting surface.

Further, a gap is formed between the decorative frame and the mounting surface.

Further, the decorative frame is provided with a gap between the collecting surfaces.

Further, the light incident surface is provided with dermatoglyph for scattering incident light, and the area of the dermatoglyph is larger than that of the light emergent surface.

Further, a light homogenizing piece is arranged between the reflecting piece and the thick-wall piece.

The light-emitting device has the beneficial effects that through the arrangement of the collecting surface, after the light entering the thick-wall member irradiates on the collecting surface, the light can be reflected and utilized, so that the light returns to the reflecting member to be reflected again, and then enters the thick-wall member again and is emitted from the light-emitting surface, thereby improving the overall light efficiency of the light-emitting device and the structural strength of the thick-wall member.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of the thick-walled member of the present utility model.

In the figure: 1. a light source module; 2. a reflecting member; 3. a thick-walled member; 30. a light inlet part; 300. a light incident surface; 301. an anti-collision surface; 302. a condensing surface; 31. a light guide section; 310. a light-emitting surface; 311. a mounting surface; 4. a decorative frame; 5. a lamp housing; 6. and a light homogenizing part.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

A light emitting device having improved light efficiency, the light emitting device being disposed within a lamp housing 5, the light emitting device comprising: the light source module 1, the reflector 2 and the thick-wall member 3, wherein the reflector 2 is used for reflecting light rays emitted by the light source module 1; the thick-walled member 3 is provided on one side of the reflecting member 2. The thick-wall member 3 is provided with a light incident surface 300, a light emergent surface 310 and a light collecting surface 302, the thick-wall member 3 comprises a light incident portion 30 and a light guide portion 31 which are arranged along the light emergent direction of the reflecting member 2, the longitudinal section of the light incident portion 30 is arranged in a trapezoid shape, one end of the light incident portion 30 with a larger end surface area is arranged towards the reflecting member 2, two sides of the end of the light incident portion 30, which are far away from the light guide portion 31, are connected with the reflecting member 2, the light guide portion 31 is arranged in a rectangle shape, and one end of the light guide portion 31 is integrally connected with one end of the light incident portion 30 with a smaller end surface.

The light incident surface 300 is located at one end of the light incident portion 30 away from the light guide portion 31, the light emergent surface 310 is located at one end of the light guide portion 31 away from the light incident portion 30, that is, the light incident surface 300 and the light emergent surface 310 are respectively disposed at two ends of the thick-wall member 3, the directions of the light incident surface 300 and the light emergent surface 310 are consistent with the light emergent direction of the reflector 2, the area of the light emergent surface 310 is smaller than the area of the light incident surface 300, and the light incident surface 300 is disposed near the reflector 2.

The light incident surface 300 is provided with a leather pattern, and the orthographic projection area of the leather pattern of the light incident surface 300 in a plane perpendicular to the light emergent direction of the reflecting member 2 is larger than the orthographic projection area of the light emergent surface 310. Thus, the uniformity of the emergent light is improved.

The light collecting surface 302 is disposed between the light incident surface 300 and the light emitting surface 310, and the inclined surface of the light incident portion 30 is the light collecting surface 302, that is, the side of the light collecting surface 302 near the light emitting surface 310 is inclined toward the center line of the thick-walled material 3 disposed along the light emitting direction of the reflector 2, and the light collecting surface 302 can reflect the light entering the thick-walled material 3 toward the light incident surface 300.

The light emitted by the light source module 1 enters the thick-wall member 3 through the light incident surface 300 after being reflected by the reflecting member 2, part of the light is directly emitted from the light emergent surface 310 without changing the light propagation direction, after being projected onto the collecting surface 302, the part of the light is reflected onto the light incident surface 300 through the reflection of the collecting surface 302, the light reflected back to the light incident surface 300 can return into the reflecting member through the light incident surface 300, and the light enters the thick-wall member 3 through the light incident surface 300 through the reflection of the reflecting member again, so that the light emitted by the light source module 1 can be emitted from the light emergent surface 310 after being reflected, and the light efficiency is improved.

The current thick wall spare 3 is in order to be convenient for be connected with the reflector, set up to T shape generally, its vertical portion is the light-emitting direction, the one end that vertical portion was kept away from to its horizontal portion is the income plain noodles 300, the both ends of its horizontal portion are convenient for be connected with the reflector, the one end that horizontal portion was kept away from to vertical portion is the play plain noodles 310, when such setting makes thick wall spare 3 receive external force, easy rupture between its horizontal portion and the vertical portion, this application sets up into trapezium structure with income optical portion 30, the part of condensing area 302 is provided the support between the vertical portion and the horizontal portion of thick wall spare 3 promptly, the intensity of thick wall spare 3 has been improved.

Between the light collecting surface 302 and the light incident surface 300, an anti-collision surface 301 is disposed, the upper and lower side walls of the light guiding portion 31 are mounting surfaces 311, the anti-collision surface 301 and the mounting surfaces 311 are respectively located at two sides of the light collecting surface 302, the anti-collision surface 301 is disposed close to the side wall where the light incident surface 300 is located, the mounting surfaces 311 are disposed close to the side wall where the light emergent surface 310 is located, the mounting surfaces 311 are parallel to the light emergent surface 310, the direction of the light emergent surface 310 is along, and the length of the mounting surfaces 311 and the length of the light collecting surface 302 are both greater than the length of the anti-collision surface 301.

The anti-collision surface 301 forms a chamfer between the light incident surface 300 and the light collecting surface 302, and compared with the sharp angle formed on the thick-wall member 3 by direct bending transition between the light incident surface 300 and the light collecting surface 302, the arrangement of the anti-collision surface 301 reduces the possibility of damage to the thick-wall member 3 caused by collision.

The light-emitting device further comprises a decoration frame 4, the decoration frame 4 is connected with the lamp housing 5, two decoration frames 4 are arranged along the direction of the light-emitting surface 310, one decoration frame 4 is arranged on the upper side of the thick-wall member 3 and is called as an upper decoration frame 4, the other decoration frame 4 is arranged on the lower side of the thick-wall member 3 and is called as a lower decoration frame 4, the projection length of the side wall, opposite to the mounting surface 311, of the decoration frame 4 on the mounting surface 311 is smaller than the length of the mounting surface 311, so that the decoration frame 4 is movably arranged on the two sides of the thick-wall member 3 along the direction of the light-emitting surface 310, relative sliding is realized between the mounting surface 311 and the thick-wall member 3, one end, close to the light-emitting surface 310, of the decoration frame 4 does not exceed the light-emitting surface 310, and one end, close to the light-emitting surface 310, of the thick-wall member 3 is always exposed on the decoration frame 4. The projection range of the decorative frame 4 on the plane perpendicular to the light emitting direction of the thick-walled member 3 exceeds the edge of the light emitting surface 310 of the thick-walled member 3, namely, the connecting part of the reflective member 2 and the thick-walled member 3 can be connected by the upper decorative frame 4 and the lower decorative frame 4, and when the human eyes observe the connecting part, only one end, close to the light emitting surface 310, of the thick-walled member 3 can be seen by eyes. The decorative frame 4 is mostly dark in color, and the shielding effect is better.

The decorative frame 4 has gaps with the mounting surface 311 and the condensing surface 302. If the gap is too small, there is a machining tolerance between the decorative frame 4 and the mounting surface 311, which may cause the decorative frame 4 to contact with the mounting surface 311, so that during running of the vehicle, if the light emitting device shakes, abrasion may occur between the mounting surface 311 and the decorative frame 4; if the gap is too large, the shielding effect of the decorative frame 4 may be weakened, and more installation space is wasted, with the width of the gap between the decorative frame 4 and the installation surface 311 being between 0.5 and 1.5 mm.

The light source module 1 includes a circuit board and an LED light source provided on the circuit board. The light source module 1 is located below the reflecting piece 2, the lower side of the reflecting piece 2 is provided with a light inlet, and the LED light source is located right below the light inlet. The reflecting member 2 further comprises a reflecting portion, and light emitted by the LED light source can be reflected by the reflecting portion and then enter the thick-wall member 3.

The light emitting device further includes: light homogenizing member 6, light homogenizing member 6 is connected between reflector 2 and thick-wall member 3. At least one of the side walls of the light homogenizing member 6 opposite to the light emergent direction of the reflecting member 2 may be provided with a pattern. The light that the reflector 2 is launched towards thick-wall member 3 gets into thick-wall member 3 through dodging piece 6, can improve the homogeneity of the light distribution that gets into thick-wall member 3. The patterns on the light incident surface 300 or the light emergent surface 310 of the light homogenizing member 6 are additionally arranged, so that the light homogenizing effect of the light homogenizing inner lampshade can be improved.

In summary, by the arrangement of the light collecting surface 302, the light entering the thick-wall member 3 is reflected and utilized after being irradiated on the light collecting surface 302, and the light is returned to the reflective member to be reflected again, and then enters the thick-wall member 3 again to be emitted from the light emitting surface 310, and is emitted out of the lamp housing 5, so that the overall light efficiency of the light emitting device is improved, and the structural strength of the thick-wall member 3 is improved.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined as the scope of the claims.

Claims

1. A light emitting device having improved light efficiency, comprising:

light source module (1)

The reflecting piece (2), the said reflecting piece (2) is used for reflecting the light that the light source module (1) sends out;

thick-wall spare (3), thick-wall spare (3) set up in one side of reflector (2), be provided with income plain noodles (300), play plain noodles (310) and condensing area (302) on thick-wall spare (3), the orientation of income plain noodles (300), play plain noodles (310) all is unanimous with the light-emitting direction of reflector (2), it sets up near reflector (2) to go into plain noodles (300), one side that condensing area (302) is close to play plain noodles (310) is towards the central line slope setting of thick-wall spare (3) that set up along the light-emitting direction of reflector (2), condensing area (302) are with the light orientation income plain noodles (300) of getting into thick-wall spare (3).

2. The light-emitting device with improved light efficiency according to claim 1, wherein an anti-collision surface (301) is provided between the light entrance surface (300) and the light collection surface (302).

3. The lighting device with improved light efficiency according to claim 1, further comprising a decorative frame (4), the decorative frame (4) being located along the light exit surface (310) on both sides of the thick-walled member (3) facing.

4. A lighting device with improved light efficiency according to claim 3, characterized in that the projection range of the orthographic projection of the decorative frame (4) on a plane perpendicular to the light emitting direction of the thick-walled member (3) exceeds the edges of the light incident surface (300) and the reflecting member (2) of the thick-walled member (3).

5. The light-emitting device with improved light efficiency according to claim 3 or 4, wherein a mounting surface (311) is provided on the thick-wall member (3), the mounting surface (311) is located between the light-emitting surface (310) and the light-collecting surface (302), the mounting surface (311) is opposite to the decorative frame (4), and along the direction of the light-emitting surface (310), one end of the decorative frame (4) close to the light-emitting surface (310) does not exceed the light-emitting surface (310).

6. The light-emitting device with improved light efficiency according to claim 5, wherein a projected length of a side wall of the decorative frame (4) opposite to the mounting surface (311) on the mounting surface (311) is smaller than a length of the mounting surface (311) along an orientation of the light-emitting surface (310).

7. The light-emitting device with improved light efficiency according to claim 5, wherein a gap is provided between the decorative frame (4) and the mounting surface (311).

8. The lighting device with improved light efficiency according to claim 5, wherein a gap is provided between the decorative frame (4) and the light collecting surface (302).

9. The light emitting device with improved light efficiency according to claim 1, wherein the light entrance surface (300) has a dermatoglyph that scatters incident light, and wherein the dermatoglyph has an area larger than an area of the light exit surface (310).

10. A light emitting device with improved light efficiency according to claim 1, characterized in that a light homogenizing member (6) is arranged between the reflecting member (2) and the thick-walled member (3).