Split type light guide structure, automotive trim structure with split type light guide structure and automobile with split type light guide structure

Abstract

The utility model provides a split type light guide structure, an automobile interior structure with the split type light guide structure and an automobile, and relates to the technical field of automobile atmosphere lamps. Comprising a first light source, a first light guide, a second light source and a second light guide, the first light guide and the second light guide are annularly arranged, the light outlet end of the first light guide is close to the light inlet end of the second light guide, the light outlet end of the second light guide is close to the light inlet end of the first light guide, and the first light guide and the second light guide are each internally provided with a plurality of light guide teeth. Light is supplemented to the light emitting end of the first light guide and the light incident end of the second light guide through the light guide teeth in the second light guide, and light is supplemented to the light emitting end of the second light guide and the light incident end of the first light guide through the light guide teeth in the first light guide, so that the whole structure is uniform in light transmission. The structure provided by the utility model is uniform in light emission, and bright spots and dark local positions are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive ambient lights, in particular to a split light guide structure, an automotive interior structure and an automobile having the same. Background Art

[0002] With the increasingly widespread application of ambient lights as interior configurations in the automotive industry, as a common type of ambient light, the annular ambient light is usually used at positions such as air-conditioning air outlets and interior door handle trims. Generally, the ambient light guide is arranged in combination with the light-transmitting panel of the interior fitting, and the diversity of the light-emitting effects of the ambient light is demonstrated through different styles of the surface shape and hollow patterns of the interior light-transmitting panel.

[0003] When the total length of the light-emitting surface of the interior is greater than 350 mm, generally, a double-lamp-head light-incoupling method is adopted to ensure the brightness of the ambient light. Currently, there are two common types of double-lamp-head annular ambient light guides: X-shaped cross and Y-shaped closed-loop. For the X-shaped cross light guide, there is a problem that bright spots are likely to appear in the overlapping area of the two light-incouplings. For the Y-shaped light guide structure, the two ends of the two light guides are respectively connected together, and the two light guides are respectively bent to form an annular light guide with two opposite ends in a "Y" shape. Due to the limitations of the mold size and the supplementary light brightness at the fork of this "Y" shape, the turning radius of the light guide is generally designed too small, and serious light leakage and uneven brightness and darkness will occur at the fork. Only one lamp head can be arranged at one fork of the ambient light of the light guide at the Y-shaped structure, that is, two Y-shaped cross light-incoupling points need to be arranged for the annular light guide with a longer light-emitting length, and the light homogenization difficulty is increased at the light guide intersection.

[0004] The above structures are all difficult to achieve uniform light emission of the ambient light, and bright spots or relatively dark light at some positions are likely to occur. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a split light guide structure, an automotive interior structure and an automobile having the same, which can uniformly emit light at the annular opening of the automotive interior without bright spots and relatively dark light at some positions.

[0006] The utility model provides a split light guide structure, which includes a first light guide unit and a second light guide unit. The first light guide unit includes a first light source and a first light guide with an incident end connected to the first light source. The second light guide unit includes a second light source and a second light guide with an incident end connected to the second light source;

[0007] The first light guide and the second light guide are arranged in a ring shape, and the light-emitting end of the first light guide is close to the light-incident end of the second light guide, and the light-emitting end of the second light guide is close to the light-incident end of the first light guide. A plurality of light guide teeth are arranged in both the first light guide and the second light guide. The light guide teeth in the second light guide are used to supplement light at the light-emitting end of the first light guide and the light-incident end of the second light guide, and the light guide teeth in the first light guide are used to supplement light at the light-emitting end of the second light guide and the light-incident end of the first light guide.

[0008] Optionally, protrusions are provided on the outer surfaces of the first light guide and the second light guide along the extending direction, and the protrusions and the light guide teeth are arranged oppositely on the first light guide and the second light guide.

[0009] Optionally, the protrusion is a cuboid, and the length direction of the protrusion is the extending direction of the first light guide or the second light guide.

[0010] Optionally, the first light guide and the second light guide include a connection section, a body section, and a light-transmitting section along their length directions. Both the connection section and the light-transmitting section form an angle with the body section. The connection section of the first light guide is connected to the first light source, and the light-transmitting section of the first light guide is close to the light-incident end of the second light guide. The connection section of the second light guide is connected to the second light source, and the light-transmitting section of the second light guide is close to the light-incident end of the first light guide.

[0011] Optionally, the multiple light guide teeth in the first light guide and the second light guide are arranged in sequence along the extending directions of the first light guide and the second light guide respectively.

[0012] Optionally, there is a spacing between multiple light guide teeth, and the spacing between the light guide teeth gradually decreases in the direction from the light-incident end to the light-emitting end of the first light guide or the second light guide.

[0013] Optionally, two rows of light guide teeth are arranged in both the first light guide and the second light guide.

[0014] Optionally, the two rows of light guide teeth are arranged at a certain angle.

[0015] The present utility model further provides an automotive interior structure, including a housing and the split light guide structure as described above. First grooves and second grooves that match the shapes of the first light guide and the second light guide are provided in the housing. The first grooves and the second grooves enclose a ring shape, and there is a gap between the two ends of the first grooves and the two ends of the second grooves. The light-incident end of the first light guide and the light-emitting end of the second light guide are located in one of the gaps, and the light-incident end of the second light guide and the light-emitting end of the first light guide are located in one of the gaps. The housing has a light-transmitting surface, and the light of the split light guide structure passes through the light-transmitting surface of the housing.

[0016] The present utility model further provides an automobile, comprising the automobile interior structure as described above. The automobile interior structure is installed at a position with an annular opening, and the first light guide and the second light guide are annularly distributed outside the annular opening.

[0017] In the split light guide structure, the automobile interior structure and the automobile provided by the embodiment of the present utility model, a first light source and a second light source respectively provide light sources for the first light guide and the second light guide. The first light guide and the second light guide are annularly distributed, and the light incident end of the first light guide and the light exit end of the second light guide are spaced apart and opposite to each other. The light guide teeth in the second light guide supplement light to the space between the light incident end of the first light guide and the light exit end of the second light guide, so as to achieve uniform overall light. The first light guide and the second light guide are both independently connected to the light source, and there will be no interference of the light from the two light sources in the first light guide and the second light guide, resulting in light spots or darker light in some positions. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a split light guide structure of the present utility model.

[0020] Figure 2 It is a schematic structural diagram of the first light guide in a split light guide structure of the present utility model.

[0021] Figure 3 It is a schematic structural diagram of the first light guide in a split light guide structure of the present utility model from another perspective.

[0022] Figure 4 For Figure 3 the structural diagram at A in

[0023] Figure 5 It is a schematic overall structural diagram of an automobile interior structure of the present utility model.

[0024] Figure 6 It is a schematic partial structural diagram of an automobile interior structure of the present utility model.

[0025] Figure 7 For Figure 6 the partial enlarged view at B in

[0026] In the figure:

[0027] The first light guide unit 10, the first light source 11, the first light guide 12, the first light incident end 121, and the first light output end 122;

[0028] The second light guide unit 20, the second light source 21, the second light guide 22, the second light incident end 221, and the second light output end 222;

[0029] The wire harness unit 30, the connector 31, and the wire harness 32;

[0030] The light guide teeth 40;

[0031] The protrusion 50;

[0032] The housing 60, the spacer 61, and the light transmissive surface 62. Specific embodiments

[0033] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the description of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0034] Unless otherwise clearly defined and limited, terms such as "arranged", "installed", "connected", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0036] Terms such as "first", "second", "third", etc. are only used to distinguish elements with similar attributes, rather than indicating or implying relative importance or a specific order.

[0037] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the listed elements, it may also include other elements not specifically listed.

[0038] Such as Figure 1 AndFigure 2 As shown, this embodiment provides a split optical waveguide structure, including a first optical waveguide unit 10, a second optical waveguide unit 20, and a wire harness unit 30. The first optical waveguide unit 10 includes a first light source 11 and a first optical waveguide 12 with an incident end connected to the first light source 11. The second optical waveguide unit 20 includes a second light source 21 and a second optical waveguide 22 with an incident end connected to the second light source 21. The two ends of the first optical waveguide 12 are respectively a first incident end 121 and a first output end 122, and the two ends of the second optical waveguide 22 are respectively a second incident end 221 and a second output end 222. The wire harness unit 30 includes a connector 31 and a wire harness 32. The connector 31 is used for electrical connection with the circuit of the vehicle body to supply power to the first light source 11 and the second light source 21. The two ends of the wire harness 32 are respectively connected to the connector 31, the first light source 11, and the second light source 21. The first light source 11 and the second light source 12 are LEDs. The materials of the first optical waveguide 12 and the second optical waveguide 22 are PMMA.

[0039] The first optical waveguide 12 and the second optical waveguide 22 are arranged in a ring shape, and the first output end 122 of the first optical waveguide 12 is located above or below the second incident end 221 of the second optical waveguide 22. The second output end 222 of the second optical waveguide 22 is located above or below the first incident end 121 of the first optical waveguide 12. A plurality of light guiding teeth 40 are arranged in both the first optical waveguide 12 and the second optical waveguide 22. The light guiding teeth 40 in the second optical waveguide 22 are used to supplement light at the first output end 122 of the first optical waveguide 12 and the second incident end 221 of the second optical waveguide 22, and the light guiding teeth 40 in the first optical waveguide 12 are used to supplement light at the second output end 222 of the second optical waveguide 22 and the first incident end 121 of the first optical waveguide 12, so that the overall structure has uniform light transmission.

[0040] In this embodiment, by adopting the split first optical waveguide 12 and second optical waveguide 22, the light provided by the first light source 11 and the second light source 21 for the first optical waveguide 12 and the second optical waveguide 22 respectively is separated. The light provided by the first light source 11 and the second light source 21 is respectively incident into the first optical waveguide 12 and the second optical waveguide 22 alone, and the light of the two light sources will not interfere in the first optical waveguide 12 and the second optical waveguide 22 to cause bright spots or relatively dark light at local positions. Since the first optical waveguide 12 and the second optical waveguide 22 are split, there will be a situation where the light is relatively dark at the interval, such as at the first incident end 121 of the first optical waveguide 12 and the second output end 222 of the second optical waveguide 22. In this embodiment, the light guiding teeth 40 at the second output end 222 of the second optical waveguide 22 are used to supplement light at this place, so that the overall presented light is uniform, avoiding the appearance of bright spots or relatively dark light at some positions.

[0041] The first light guide 12 and the second light guide 22 include a connecting section, a body section, and a light-transmitting section along their lengths. Both the connecting section and the light-transmitting section form an angle with the body section. The connecting section of the first light guide 12 is connected to the first light source 11, and the light-transmitting section of the first light guide 12 is close to the light-incident end of the second light guide 22. The connecting section of the second light guide 22 is connected to the second light source 21, and the light-transmitting section of the second light guide 22 is close to the light-incident end of the first light guide 12.

[0042] Among them, the light guide teeth 40 at the second light-emitting end 222 of the second light guide 22 should be specially adjusted according to the actual situation. For example, adjust the size, angle, and distribution of the light guide teeth 40 at this place, so that the light guide teeth 40 at the second light-emitting end 222 of the second light guide 22 can fully supplement the light for the first light-incident end 121 of the first light guide 12 and the second light-emitting end 222 of the second light guide 22, making the light of the overall structure uniform. The corresponding light guide teeth 40 at the first light-emitting end 122 of the first light guide 12 also need to be adjusted accordingly.

[0043] In addition, the multiple light guide teeth 40 in the first light guide 12 and the second light guide 22 are arranged in sequence along the extending directions of the first light guide 12 and the second light guide 22 respectively. There are intervals between the multiple light guide teeth 40, and in the direction from the first light-incident end 121 to the first light-emitting end 122 of the first light guide 12, the intervals between the light guide teeth 40 gradually decrease. In the direction from the second light-incident end 221 to the second light-emitting end 222 of the second light guide 22, the intervals between the light guide teeth 40 gradually decrease. Taking the first light guide 12 as an example, the first light-incident end 121 of the first light guide 12 is closer to the first light source 11 than the first light-emitting end 122. The light at the first light-incident end 121 of the first light guide 12 is the most sufficient. At this time, the light in the area near the first light-incident end 121 of the first light guide 12 is the brightest, while the light at the first light-emitting end 122 of the first light guide 12 is darker, resulting in uneven light. By designing the interval between the light guide teeth 40 at the first light-incident end 121 of the first light guide 12 to be larger, the light guide teeth 40 at the first light-incident end 121 of the first light guide 12 have a weaker light reflection ability at this time. Although the light received at the first light-emitting end 122 of the first light guide 12 is less than that at the first light-incident end 121 of the first light guide 12, the light guide teeth 40 at the first light-incident end 121 of the first light guide 12 are denser, providing sufficient light reflection, so as to balance the light at the first light-incident end 121 and the first light-emitting end 122 of the first light guide 12.

[0044] In the design of ambient lights, there is usually also a problem that due to space limitations, the irradiation angle of the light guide cannot cover the light-transmitting surface 62 of the automotive interior. For this reason, in this embodiment, two rows of light guide teeth 40 are arranged in both the first light guide 12 and the second light guide 22. The two rows of light guide teeth 40 are used to enhance the light reflection ability in the first light guide 12 and the second light guide 22. At the same time, the two rows of light guide teeth 40 are arranged at a certain angle, which can increase the light-transmitting angle and range between the light guide teeth 40. On the premise of ensuring that the light guide teeth 40 have sufficient reflection ability, by adjusting the included angle, tooth width, and tooth depth of the two rows of light guide teeth 40 structures in the first light guide 12 and the second light guide 22, part of the light is reflected out of the first light guide 12 or the second light guide 22 between the light guide teeth 40, so as to adjust the uniformity of light emission in multiple dimensions.

[0045] As Figure 3 and Figure 4 shown in, on the outer surfaces of the first light guide 12 and the second light guide 22, protrusions 50 are provided along the extending direction. The protrusions 50 and the light guide teeth 40 are arranged oppositely on the first light guide 10 and the second light guide 20, that is, the protrusion 50 and the light guide teeth 40 on the first light guide 10 are arranged oppositely on the first light guide 10, and the protrusion 50 and the light guide teeth 40 on the second light guide 20 are arranged oppositely on the second light guide 20. The protrusion 50 is a cuboid, and the length direction of the protrusion 50 is the extending direction of the first light guide 12 or the second light guide 22. By providing such protrusions 50, the length of the single reflection path of the light in the first light guide 12 and the second light guide 22 can be lengthened, thereby reducing the included angle when the light is reflected on the light guide teeth 40 and the protrusions 50 each time, making the light reflection path denser, and thus extending the irradiation distance of the first light guide 12 and the second light guide 22.

[0046] As described above, the split light guide structure provided in this embodiment has the characteristics of uniform light emission, a wide range of irradiation light, and high irradiation light intensity.

[0047] As Figures 4 to 6 shown in, this embodiment also provides an automotive interior structure, including a housing 60 and the split light guide structure as described above. In the housing 60, a first groove and a second groove that match the shapes of the first light guide 12 and the second light guide 22 are provided. The first groove and the second groove enclose a ring shape, and there is a gap 61 between the two ends of the first groove and the two ends of the second groove. The first light incident end 121 of the first light guide 12 and the second light output end 222 of the second light guide 22 are located in one of the gaps 61, and the second light incident end 221 of the second light guide 22 and the first light output end 122 of the first light guide 12 are located in one of the gaps 61. The housing 60 has a light-transmitting surface 62, and the light of the split light guide structure passes through the light-transmitting surface 62 of the housing 60.

[0048] This embodiment also provides an automobile, including the automobile interior structure described above. The automobile interior structure is installed at a position with an annular opening, and the first light guide 12 and the second light guide 22 are annularly distributed outside the annular opening.

[0049] As described above, the split light guide structure provided in this embodiment, the automobile interior structure having the same, and the automobile can transmit light evenly and have strong light irradiation, and the design is relatively flexible.

[0050] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A split light guide structure, characterized in that: Comprising a first light guide unit (10) and a second light guide unit (20), the first light guide unit (10) comprising a first light source (11) and a first light guide (12) whose light input end is connected to the first light source (11), and the second light guide unit (20) comprising a second light source (21) and a second light guide (22) whose light input end is connected to the second light source (21); The first light guide (12) and the second light guide (22) are arranged in a ring shape, and the light output end of the first light guide (12) is close to the light input end of the second light guide (22), and the light output end of the second light guide (22) is close to the light input end of the first light guide (12). The first light guide (12) and the second light guide (22) are both provided with a plurality of light guide teeth (40), and the light output end of the first light guide (12) and the light input end of the second light guide (22) are supplemented with light by the light guide teeth (40) in the second light guide (22), and the light output end of the second light guide (22) and the light input end of the first light guide (12) are supplemented with light by the light guide teeth (40) in the first light guide (12).

2. The split light guide structure according to claim 1, characterized in that: Protrusions (50) are provided on the outer surfaces of the first light guide (12) and the second light guide (22) along the extension direction, and the protrusions (50) and the light guide teeth (40) are arranged opposite to each other on the first light guide (12) and the second light guide (22).

3. The split light guide structure according to claim 2, characterized in that: The protrusion (50) is a rectangular parallelepiped, and the length direction of the protrusion (50) is the extension direction of the first light guide (12) or the second light guide (22).

4. The split light guide structure according to claim 1, wherein: The first light guide (12) and the second light guide (22) comprise a connecting section, a main body section and a light-transmitting section along their length direction, and both the connecting section and the light-transmitting section form an angle with the main body section; the connecting section of the first light guide (12) is connected to the first light source, and the light-transmitting section of the first light guide (12) is close to a light incident end of the second light guide (22); the connecting section of the second light guide (22) is connected to the second light source, and the light-transmitting section of the second light guide (22) is close to the light incident end of the first light guide (12).

5. The split light guide structure according to claim 1, wherein: The plurality of light guide teeth (40) in the first light guide (12) and the second light guide (22) are arranged in sequence along the extension direction of the first light guide (12) and the second light guide (22), respectively.

6. The split light guide structure according to claim 5, characterized in that: There is a spacing (61) between the plurality of light guide teeth (40), and in a direction from the light input end to the light output end of the first light guide (12) or the second light guide (22), the spacing between the light guide teeth (40) gradually decreases.

7. The split light guide structure according to claim 1, characterized in that: Two rows of light guide teeth (40) are arranged in each of the first light guide (12) and the second light guide (22).

8. The split light guide structure according to claim 7, characterized in that: The two rows of light guide teeth (40) are arranged at a certain angle.

9. An automobile interior structure, characterized in that: The invention comprises a shell (60) and a split light guide structure as claimed in any one of claims 1 to 8; the shell (60) is provided with a first groove and a second groove matching the shapes of the first light guide (12) and the second light guide (22); the first groove and the second groove are arranged in a ring shape and the two ends of the first groove and the two ends of the second groove are separated by a gap (61); the light input end of the first light guide (12) and the light output end of the second light guide (22) are located in one of the gaps (61); the light input end of the second light guide (22) and the light output end of the first light guide (12) are located in one of the gaps (61); the shell (60) has a light-transmitting surface (62); and the light of the split light guide structure passes through the light-transmitting surface (62) of the shell (60).

10. An automobile, characterized in that: The automobile interior structure comprises the automobile interior structure as claimed in claim 9, wherein the automobile interior structure is installed at a location having an annular opening, and the first light guide (12) and the second light guide (22) are distributed in an annular shape outside the annular opening.

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