CN216203112U

CN216203112U - Grading subassembly and car light

Info

Publication number: CN216203112U
Application number: CN202122406089.XU
Authority: CN
Inventors: 罗业键; 杨彬; 陈杰豪
Original assignee: Guangzhou Koito Car Light Co ltd
Current assignee: Guangzhou Koito Car Light Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a light distribution assembly and a vehicle lamp, wherein the light distribution assembly comprises light sources which are dispersedly arranged on different light emitting surfaces of the vehicle lamp: the light emitting surface of the thick-wall light guide plate is provided with a plurality of granular convex points which are uniformly distributed; the thin-wall light guide plate is provided with a light incident surface, a reflecting surface and a light emergent surface which is distributed opposite to the reflecting surface, and the reflecting surface is provided with a plurality of uniformly distributed light-emitting concave points. The scheme simultaneously comprises the thick-wall light guide plate and the thin-wall light guide plate which have different light emitting principles, and is applied to light distribution of different light emitting areas of the car lamp.

Description

Grading subassembly and car light

Technical Field

The utility model relates to the field of automobile illumination, in particular to a light distribution assembly and an automobile lamp.

Background

Due to the need for styling, the same lamp on a vehicle often has multiple separate light emitting surfaces, and the separate light emitting surfaces need to ensure the consistency of the appearance when functioning as the same function, i.e. the appearance described here, i.e. the visual perception of the human eye when lit and unlit. When the separated light-emitting surfaces cannot be designed to emit light according to the same optical principle due to the limitations of structural space, manufacturing process and the like, it is difficult to ensure that the separated light-emitting surfaces can achieve uniform appearance effect because the separated light-emitting surfaces adopt different optical principles.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a light distribution assembly and a vehicle lamp, which can realize the uniform appearance effect of different light emitting surfaces of the vehicle lamp during lighting and non-lighting.

According to a first aspect embodiment of the present invention, a light distribution module includes: the light emitting surface of the thick-wall light guide plate is provided with a plurality of granular convex points which are uniformly distributed; the thin-wall light guide plate is provided with a light incident surface, a reflecting surface and a light emergent surface which is distributed opposite to the reflecting surface, and the reflecting surface is provided with a plurality of uniformly distributed light-emitting concave points.

According to the light distribution assembly of the first embodiment of the utility model, at least the following beneficial effects are achieved: the scheme simultaneously comprises the thick-wall light guide plate and the thin-wall light guide plate which have different light emitting principles, and is applied to light distribution of different light emitting areas of the car lamp.

According to some embodiments of the first aspect of the present invention, a plurality of the luminescent pits form a luminescent lattice in the form of an array.

According to some embodiments of the first aspect of the present invention, the light emitting lattice has the same column pitch and row pitch.

According to some embodiments of the first aspect of the present invention, the column pitch and the row pitch of the luminescent dot matrix are both arranged 1.5mm from the center of the luminescent pits.

According to some embodiments of the first aspect of the present invention, the heights of the luminescent pits are distributed in a gradual manner from one side of the luminescent dot matrix to the other side.

According to some embodiments of the first aspect of the present invention, the light-emitting pits have a height varying interval of 0.3mm to 0.4 mm.

According to some embodiments of the first aspect of the present invention, the granular protrusions are in the shape of corn kernels.

According to some embodiments of the first aspect of the present invention, the thick-walled light guide plate is four, and the thin-walled light guide plate is one.

According to some embodiments of the first aspect of the present invention, the light incident surface of the thick-walled light guide plate is provided with a condenser lens and a tertiary reflector.

A vehicular lamp according to an embodiment of a second aspect of the utility model includes: the decorative frame with set up in LED base plate in the decorative frame and grading subassembly, be provided with a plurality of LED light sources on the LED base plate, the grading subassembly is used for being a plurality of the LED light source carries out secondary grading, be provided with on the decorative frame and be located the transparent protective housing in the grading subassembly outside.

According to the light distribution assembly of the second embodiment of the utility model, at least the following beneficial effects are achieved: the scheme simultaneously comprises the thick-wall light guide plate and the thin-wall light guide plate which have different light emitting principles, and is applied to light distribution of different light emitting areas of the car lamp.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of a vehicular lamp according to an embodiment of the present invention;

FIG. 2 is a diagram of an optical path of a thick-walled light guide plate according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a thick-walled light guide plate according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of a thick-walled light guide plate according to an embodiment of the present invention;

FIG. 5 is a light path diagram of a thin-walled light guide plate according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a thin-walled light guide plate according to an embodiment of the utility model.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 6, a light distribution assembly according to an embodiment of the present invention includes: the light guide plate comprises at least one thick-wall light guide plate 100, wherein a light emergent surface of the thick-wall light guide plate 100 is provided with a plurality of granular convex points 101 which are uniformly distributed; the thin-wall light guide plate 200 is provided with a light incident surface, a reflecting surface and a light emitting surface which is distributed opposite to the reflecting surface, wherein the reflecting surface is provided with a plurality of light emitting concave points 201 which are uniformly distributed.

As shown in fig. 2, the light emitting principle of the thick-walled light guide plate 100 is: after light emitted by an LED light source on the LED substrate 300 is incident from the condensing lens 110 at one end, the light is reflected for multiple times and then horizontally emitted, and then uniformly emitted from the plurality of granular bumps 101 on the light emitting surface of the thick-wall light guide plate 100; the light emitting principle of the thin-walled light guide plate 200 is that, as shown in fig. 5, light emitted from the LED light source on the LED substrate 300 enters from one end of the thin-walled light guide plate 200, is reflected once or more times, is scattered by the light emitting pits 201 of the reflection surface, and finally is emitted from the light emitting surface. It can be seen that the present solution includes the thick-wall light guide plate 100 and the thin-wall light guide plate 200 with different light emitting principles at the same time, and is applied to the light distribution of different light emitting areas of the vehicle lamp, and the uniform appearance effect of the different light emitting areas of the vehicle lamp is maintained when lighting or not lighting through the plurality of light emitting concave points 201 arranged on the thin-wall light guide plate 200.

In some embodiments of the first aspect of the present invention, a plurality of the light-emitting pits 201 form a light-emitting lattice in the form of an array, or a combined shape similar to the aforementioned granular bumps 101.

Preferably, in some embodiments of the first aspect of the present invention, the light emitting dot matrix has the same column pitch and the same row pitch, so as to match the uniformly distributed granular bumps 101 of the thick-wall light guide plate 100, and maintain the uniformity of the appearance.

Specifically, in some embodiments of the first aspect of the present invention, the column pitch and the row pitch of the light emitting dot matrix are both arranged at 1.5mm of the center of the light emitting concave 201, where 1.5mm is only an optimal choice for this embodiment, and can also be adaptively adjusted according to the car lights and the light emitting surfaces with different sizes.

In some embodiments of the first aspect of the present invention, the heights of the light-emitting pits 201 are distributed in a gradual manner from one side to the other side of the light-emitting lattice, and the height variation range of the light-emitting pits 201 is 0.3mm to 0.4 mm. Therefore, the uniformity of the light guide panel is ensured, and simultaneously, when the light guide panel is matched with a thick meat lighting/non-lighting part above, the appearance consistency with dot matrixes at the upper part and the lower part is presented to people.

In some embodiments of the first aspect of the present invention, the granular protrusions 101 are in the shape of corn grains, but other existing granular shapes may be substituted.

In some embodiments of the first aspect of the present invention, the thick-walled light guide plate 100 is four, and the thin-walled light guide plate 200 is one, and other numbers of thick-walled light guide plates 100 or thin-walled light guide plates 200 may be provided according to different configurations.

Further, in some embodiments of the first aspect of the present invention, the light incident surface of the thick-walled light guide plate 100 is provided with a condensing lens 110 and a third reflector 120, the condensing lens 110 can condense the divergent light emitted from the LED light source, so as to reduce light loss, and the third reflector 120 changes the direction of the incident light to the direction perpendicular to the light emergent surface, so as to save the front space of the vehicle lamp to the greatest extent.

As shown in fig. 1, 2 and 6, a vehicular lamp according to a second aspect of the present invention includes: dress escutcheon 400 with set up in LED base plate 300 in dress escutcheon 400 and the grading subassembly, be provided with a plurality of LED light sources on the LED base plate 300, the grading subassembly is used for being a plurality of the LED light source carries out secondary grading, be provided with on the dress escutcheon 400 and be located the transparent protective housing 500 in the grading subassembly outside.

As described above, the present solution includes the thick-wall light guide plate 100 and the thin-wall light guide plate 200 having different light emitting principles at the same time, and is applied to the light distribution of different light emitting surfaces of the vehicle lamp, and the plurality of light emitting concave points 201 arranged on the thin-wall light guide plate 200 achieve the uniform appearance effect of the different light emitting surfaces of the vehicle lamp when lighting or not lighting.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a light distribution assembly which characterized in that, including the dispersion set up in the different light emitting area of car light:

the light emitting surface of the thick-wall light guide plate is provided with a plurality of granular convex points which are uniformly distributed;

the thin-wall light guide plate is provided with a light incident surface, a reflecting surface and a light emergent surface which is distributed opposite to the reflecting surface, and the reflecting surface is provided with a plurality of uniformly distributed light-emitting concave points.

2. The light distribution assembly of claim 1, wherein: and a plurality of the luminous pits form a luminous lattice in an array form.

3. The light distribution assembly of claim 2, wherein: the column spacing and the row spacing of the light-emitting dot matrix are the same.

4. The light distribution assembly of claim 3, wherein: the row spacing and the line spacing of the light-emitting dot matrix are arranged in a way that the circle center of the light-emitting concave point is 1.5 mm.

5. The light distribution assembly according to any one of claims 2 to 4, wherein: the heights of the luminous concave points are distributed in a gradual change mode from one side to the other side of the luminous dot matrix.

6. The light distribution assembly of claim 5, wherein: the height change interval of the luminous concave points is 0.3mm to 0.4 mm.

7. The light distribution assembly of claim 1, wherein: the granular salient points are in the shape of corn grains.

8. The light distribution assembly of claim 1, wherein: the thick wall light guide plate is four, the thin wall light guide plate is one.

9. The light distribution assembly of claim 1, wherein: and the light incident surface of the thick-wall light guide plate is provided with a condensing lens and a tertiary reflector.

10. A vehicle lamp, characterized by comprising: the LED light distribution module comprises a decoration frame, an LED substrate arranged in the decoration frame and the light distribution module as claimed in any one of claims 1 to 9, wherein a plurality of LED light sources are arranged on the LED substrate, the light distribution module is used for carrying out secondary light distribution on the plurality of LED light sources, and a transparent protective shell positioned outside the light distribution module is arranged on the decoration frame.