WO2022073421A1 - Light-guiding illuminated decorative apparatus - Google Patents

Light-guiding illuminated decorative apparatus Download PDF

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Publication number
WO2022073421A1
WO2022073421A1 PCT/CN2021/119934 CN2021119934W WO2022073421A1 WO 2022073421 A1 WO2022073421 A1 WO 2022073421A1 CN 2021119934 W CN2021119934 W CN 2021119934W WO 2022073421 A1 WO2022073421 A1 WO 2022073421A1
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WO
WIPO (PCT)
Prior art keywords
light
light guide
exit port
decoration device
lighting decoration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/119934
Other languages
French (fr)
Chinese (zh)
Inventor
胡安兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Keboda Technology Co Ltd
Original Assignee
Keboda Technology Co Ltd
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Filing date
Publication date
Application filed by Keboda Technology Co Ltd filed Critical Keboda Technology Co Ltd
Publication of WO2022073421A1 publication Critical patent/WO2022073421A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • B60Q3/78—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for generating luminous strips, e.g. for marking trim component edges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2106/00—Interior vehicle lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to lighting decoration technology.
  • the conventional lighting decoration device as an example includes a housing 1 , a light source 2 and a light guide element 3 .
  • the housing 1 has an inner cavity 11 and a light outlet 12, the light source 2 and the light guide element 3 are respectively arranged in the inner cavity 11, and the light guide element 3 has a light incident surface 3a for receiving the light incident from the light source 2 and a The light is emitted to the light exit surface 3 b of the light exit port 12 .
  • the housing 1 is composed of a first housing part 1a and a second housing part 1b, the first housing part 1a and the second housing part 1b are connected to each other and together form an inner cavity 11 .
  • the light source 2 includes one or more light-emitting units 21 , and the light-emitting units 21 are arranged on the circuit board 22 .
  • the light emitting unit 21 is usually an LED.
  • the light guide element 3 is composed of a transparent light guide portion 31a and a diffused light guide portion 32a. The light incident surface 3a is provided on the transparent light guide portion 31a, and the light exit surface 3b is provided on the diffuse light guide portion 32a.
  • the light guide element 3 is mainly used to meet the requirements of light output uniformity or multi-color light mixing, and is usually made of high molecular polymer material, and the material selection range is small and expensive.
  • the high molecular polymer has extremely high requirements on the forming mold (for example, high surface polishing is required), so as to achieve the purpose of reducing light loss. Even so, the loss of light in the process of transmission, especially in the diffused light-guiding part, is still large, the light efficiency is low, and the effective light utilization rate is only about 10%.
  • the new technical solution adopts a bowl-shaped concentrator 4 to replace the existing light guide element 3, as shown in FIG. 2 .
  • the bowl-shaped concentrator 4 is made of non-transparent material with a reflective metal layer on the surface, or directly made of white material with high reflectivity.
  • the bowl-shaped concentrator 4 uses air as the light-guiding medium, and the structure has a large opening and the shape of the reflecting bowl follows the parabola principle. When the required light-emitting area is long, several reflecting bowls are arranged along the length direction of the bowl-shaped concentrator 4 (the direction perpendicular to the paper surface of FIG. 2 ).
  • each reflecting bowl of the bowl-shaped concentrator 4 emits substantially parallel outgoing light, there will be a darker area between the illumination areas of the respective reflecting bowls in the length direction, that is, along the length direction A certain inhomogeneity, which is disadvantageous in some cases.
  • the bowl-shaped concentrator 4 needs to be integrally formed, in order to ensure the feasibility of mold processing and facilitate demolding, the height of the light exit port of the bowl-shaped concentrator 4 cannot be designed to be too small (generally the height of the light exit port 12 ). more than 3 times), which will lead to more waste of light at the opening and low light utilization.
  • the bowl-shaped concentrator 4 mainly uses the parabolic reflection area to reflect the light emitted by the light source.
  • the parabolic reflection area will also become smaller.
  • the light reflected from the parabolic reflective area to the light outlet decreases, and the planar reflective area connected to the parabolic reflective area may face the light source, causing a large amount of light to be reflected to the entrance of the bowl-shaped concentrator 4, so On the contrary, the brightness at the light exit port of the bowl-shaped concentrator 4 is not effectively improved.
  • the technical problem to be solved by the present invention is to provide a lighting decoration device with low manufacturing cost, small light loss, high light utilization efficiency, and capable of fully mixing the multicolor light emitted by the light source.
  • the light guide type lighting decoration device includes a housing, a light source and a light guide channel; the housing has an inner cavity and a light outlet, and the light source and the light guide channel are respectively arranged in the inner cavity.
  • the type lighting decoration device includes an opaque light guide cover plate and an opaque light guide base plate, the light guide channel is formed by the gap between the light guide cover plate and the light guide base plate, and the light guide medium of the light guide channel is air;
  • the channel has a light entrance port and a light exit port, and the light entrance port and the light exit port are respectively close to the light source and the light exit port; the light emitted by the light source enters the light guide channel through the light entrance port, and passes through the inner surface of the light guide cover and the inner surface of the light guide base plate. After reflection, it propagates to the light outlet.
  • the height of the light exit port is 0.8-2 times the height of the light exit port
  • the length of the light exit port is 0.8-1.2 times the length of the light exit port. times.
  • the height of the light exit port is 1 to 1.2 times the height of the light exit port
  • the length of the light exit port is 1 to 1.1 times the length of the light exit port
  • the light exit port completely surrounds the light exit port. Projection on the light exit port.
  • the light guide channel of the embodiment of the present invention uses low-cost air as the light guide medium. Compared with the existing high molecular polymer light guide element, the requirements for the precision of the mold are reduced, the manufacturing cost is reduced, and the assembly is not required. The requirement of tolerance is low, which simplifies the manufacturing and assembly process, and also avoids the waste of light caused by the optical refraction of the polymer medium, and reduces the light loss;
  • the light will not be limited to the front of the reflector, so the uniformity of the light along the length direction is higher;
  • the multi-color light is fully and uniformly mixed in it to achieve uniform light of any color, thereby achieving a good display effect;
  • the shape design of the light guide channel is flexible and changeable, and can be freely selected and matched according to the needs of the optical effect. At the same time, the size of the light entrance and the light exit port of the light guide channel can be changed, and the optical path distance from the light entrance to the light exit port is also variable. It can be flexibly designed according to the needs of optical effects, so as to adapt to different needs;
  • the light guide cover plate and the light guide base plate of the light guide channel are processed and formed separately, with low processing requirements for the mold and simple demoulding; the size of the light guide channel formed by the light guide cover plate and the light guide base plate can be adjusted arbitrarily, so that the The height of the light exit port of the control light guide channel is 0.8-2 times the height of the light exit port, and the length is within the range of 0.8-1.2 times the length of the light exit port, the light waste at the light exit port is less, and the light emitted by the light source is basically completely concentrated It is guided to the light exit port in the light guide channel, and there is no other exit, which greatly improves the utilization rate of LED light, and the light output from the light exit port has a strong light intensity.
  • FIG. 1 shows a schematic cross-sectional structure diagram of a conventional lighting decoration device.
  • FIG. 2 shows a schematic cross-sectional structure diagram of another conventional lighting decoration device.
  • FIG. 3 shows a schematic cross-sectional structure diagram of a light guide type lighting decoration device according to an embodiment of the present invention.
  • FIG. 4 shows a schematic structural diagram of a light guide cover plate and a light guide base plate according to an embodiment of the present invention.
  • FIG. 5 shows a schematic cross-sectional view of a light guide cover plate and a light guide base plate according to another embodiment of the present invention.
  • FIG. 3 shows a schematic cross-sectional structure diagram of the light guide type lighting decoration device according to the first embodiment of the present invention.
  • FIG. 4 shows a schematic structural diagram of a light guide cover plate and a light guide base plate according to an embodiment of the present invention. See Figures 3 and 4.
  • the light-guiding lighting decoration device according to the first embodiment of the present invention includes a casing 1 , a light source 2 , a non-transparent light-guiding cover plate 51 and an opaque light-guiding base plate 52 .
  • the housing 1 has an inner cavity 11 and a light outlet 12 .
  • the casing 1 is composed of a first casing part 1a and a second casing part 1b, the first casing part 1a and the second casing part 1b are connected to each other and together form an inner cavity 11 .
  • the first housing part 1a and the second housing part 1b may be connected by snap connection or heat riveting connection, or connected to each other by independent connecting elements (eg, screws).
  • the first casing part 1a and the second casing part 1b can be made of the same plastic, or can be made of different plastics.
  • the gap between the light guide cover plate 51 and the light guide base plate 52 forms the light guide channel 6 .
  • the light guide cover plate 51 and the light guide base plate 52 are processed and formed separately, and then combined to form the light guide channel 6 .
  • Both the light source 2 and the light guide channel 6 are arranged in the inner cavity 11 .
  • the light guide medium of the light guide channel 6 is air.
  • the light guide channel 6 has a light entrance port 61 and a light exit port 62 , and the light entrance port 61 and the light exit port 62 are respectively close to the light source 2 and the light exit port 12 .
  • the light emitted by the light source 2 enters the light guide channel 6 through the light incident port 61 , and is reflected by the inner surface 51 a of the light guide cover and the inner surface 52 a of the light guide base plate and then propagates to the light outlet 12 .
  • the light entering the light guide channel 6 will be emitted to the light outlet 12 only after at least one reflection on the inner surface 51a of the light guide cover and one reflection on the inner surface 52a of the light guide bottom plate (that is, at least two reflections in the light guide channel 6 ).
  • the dashed lines and arrows in FIG. 3 schematically show the directions of light propagation.
  • the inner wall of the light guide channel 6 (that is, the inner surface 51a of the light guide cover plate and the inner surface 52a of the light guide bottom plate) can be smooth or provided with optical patterns, and the inner wall of the light guide channel 6 can also be provided with a reflective layer.
  • a reflective layer For example, it is a sprayed or electroplated reflective metal layer, such as aluminum, chromium and other metal layers, so that the utilization rate and brightness of light can be improved.
  • the inside surface 51a of the light guide cover plate and the inside surface 52a of the light guide base plate located in the light guide channel 6 extend in the same trend.
  • the inner surface 52a of the light guide plate also extends along a straight line.
  • the inner surface 51a of the light guide cover is curved, the inner surface 52a of the light guide plate also bends, and the two can be parallel. , can also differ slightly in extension angle or curvature. In this way, it can be ensured that the optical paths of most of the lights are substantially the same, which is beneficial to improve the uniformity of the brightness at the light exit port.
  • the shape of the light guide channel 6 is an arc-shaped bending shape.
  • the arc-shaped bending light guide channel 6 includes an arc-shaped segment 6a and a straight-line segment 6b, one end of the arc-shaped segment 6a is connected with one end of the straight-line segment 6b; the light entrance 61 is located at the other end of the arc-shaped segment 6a, and the light exit port 62 at the other end of the straight line segment 6b.
  • the shape of the arc-shaped segment 6a may be a circular arc, a parabola, or the like. In other embodiments, the shape of the light guide channel 6 is a wave shape.
  • the effect of multi-color light mixing and uniformity can be improved, and the light can be prevented from directly reaching the light outlet 12 without being reflected.
  • the bending angle of the bent light guide channel 6 and the width and height of the light guide channel can be flexibly adjusted according to optical needs. If the shape of the light guide channel 6 is set as a straight line, at this time, the light guide channel 6 directly transmits the incident light of the light source 2 to the light outlet 12 , although the number of the light emitting units 21 can be adjusted or the optical fiber can be added to the inner and outer sides of the light outlet 7 . Pattern or skin pattern, but the uniformity of light and the effect of multi-color mixing will still be poor.
  • the light exit port 62 is facing the light exit port 12, and the height h1 of the light exit port 62 is 0.8-2 times the height of the light exit port 12, and the length is 0.8-1.2 times the length of the light exit port 12. It meets the requirements of uniformity and multi-color light mixing and can improve the utilization rate of light compared with the prior art.
  • the height h1 of the light exit port 62 is 1 ⁇ 1.2 times the height of the light exit port 12
  • the length L1 of the light exit port 62 is 1 ⁇ 1.1 times the length of the light exit port 12 .
  • the dotted line shows the projection 12 a of the light exit port 12 on the light exit port 62 .
  • the light exit opening 62 completely surrounds the projection of the light exit opening 12 on the light exit opening 62 . Since the light exit port 62 is larger than the light exit port 12, the requirements for assembly tolerance are reduced, the manufacturing and assembly process are simplified, and the side surface of the light guide channel 6 does not need to be closed, that is, the light guide cover plate 51 and the light guide base plate 52 are mutually compatible on the side surface. There is no connection relationship, which can further reduce the processing difficulty and cost.
  • the light guide cover plate 51 and the light guide base plate 52 can also be connected to each other.
  • one side of the light guide cover plate 51 is connected to one side of the light guide base plate 52 through a first side plate (not shown in the figure), and the other side of the light guide cover plate 51 is connected through a second side plate (not shown in the figure) (outlet) is connected to the other side of the light guide base plate 52 , so as to close both sides of the light guide channel 6 .
  • the light source, the light guide cover plate 51 and the light guide base plate 52 are respectively fixedly connected to the first housing part 1a and/or the second housing part 1b, and the fixed connection methods include but are not limited to snap connection or They are connected to each other by means of separate connecting elements (eg screws).
  • the light guide lighting decoration device is further provided with a positioning structure, which is used for fixing the light source 2. , The relative positional relationship between the light guide cover plate 51 and the light guide base plate 52 .
  • the light source, the light guide cover plate 51 and the light guide base plate 52 are all fixedly connected to the same one of the first casing part 1a or the second casing part 1b (for example, they are all fixedly connected to the second casing part 1b).
  • the light source 2 is directly positioned and fixed with the light guide cover plate 51 and the light guide base plate 52 through the positioning element or the positioning structure. If the light source 2, the light guide cover plate 51 and the light guide base plate 52 are respectively connected to the housing, due to assembly tolerances, the positional relationship between the light source 2 and the light guide channel 6 in different products will be different, which will lead to different products. There is a difference in glow effect.
  • the light guide cover plate 51 and/or the light guide bottom plate 52 are integrally formed with the housing 1 .
  • the light-guiding lighting decoration device further includes a light-exiting part 7, which is arranged between the light-exiting port 62 of the light-guiding channel and the light-exiting port 12, and passes through certain components, such as glue, mounting structure, etc. Connected to the second housing portion 1b.
  • the light exit portion 7 has a light incident surface 7 a for receiving light incident from the light exit port 62 and a light exit surface 7 b for exiting the incident light, and the light exit surface 7 b faces the light exit port 12 .
  • the light emitting part 7 can mix the incident light more uniformly, or display a specific pattern, so as to achieve a better optical effect.
  • the light-emitting part 7 is not necessary, and can be selected according to the light-emitting effect.
  • the second housing portion 1b and the light emitting portion 7 are integrally formed.
  • the second housing portion 1b and the light-emitting portion 7 are integrally formed by injection molding.
  • Both the first housing part 1a and the second housing part 1b are made of non-transparent plastic; the outer surfaces of the first housing part 1a and the second housing part 1b can be sprayed with different colors of liquid solvents according to requirements to meet the interior color , gloss and other requirements, the liquid solvent is a transparent solvent or a non-transparent colored solvent, and multiple layers of liquid solvent can be sprayed.
  • the light emitting part 7 is made of colorless transparent plastic, and has scattering particles, pores, dermatoglyphics, optical patterns, etc.
  • the light emitting part 7 can also be made of translucent plastic, such as diffusing plastic.
  • first housing portion 1a and the light exit portion 7 are connected to each other or integrally formed.
  • the light emitting portion 7 is connected to the light guide cover plate 51 or the light guide base plate 52, and then fixedly connected to the first housing portion 1a or the second housing portion 1b in the form of a sub-assembly.
  • the light source 2 includes several light-emitting units 21, and the light-emitting units 21 are arranged on a circuit board 22, and the circuit board 22 may be a rigid or flexible circuit board.
  • the above-mentioned "several" means one or more.
  • the light-emitting unit 21 is an LED, the number of LEDs is multiple, the multiple LEDs are arranged in a row, and the multiple LEDs are physically and electrically connected.
  • a plurality of LEDs can emit monochromatic light or polychromatic light, and when the emitting colors of the plurality of LEDs are different, mixed light, such as mixed white light, can be generated.
  • each light emitting unit 21 partially extends into the light entrance 61 of the light guide channel 6 .
  • the light guide type lighting decoration device of this embodiment can be arranged between the windshield and the instrument panel of the automobile.
  • the light guide channel of the embodiment of the present invention uses low-cost air as the light guide medium.
  • the requirements for the precision of the mold are reduced, the manufacturing cost is reduced, and the assembly tolerance is reduced.
  • the requirements are lower, the manufacturing and assembly processes are simplified, and the waste of light caused by the optical refraction of the polymer medium is avoided, and the light loss is reduced.
  • the manufacturing cost is reduced.
  • the light-guiding lighting decoration device can be arranged between the windshield and the instrument panel of the automobile, has low manufacturing cost, low light loss, high light utilization efficiency, and can fully mix the multicolor light emitted by the light source.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Planar Illumination Modules (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

Provided is a light-guiding illuminated decorative apparatus, comprising a housing (1), a light source (2), and a light-guiding channel (6); the housing (1) has an inner cavity (11) and a light outlet (12), the light source (2) and the light-guiding channel (6) being arranged in the inner cavity (11), respectively. The light-guiding channel (6) consists of a gap between a light-guiding cover panel (51) and a light-guiding base plate (52), the light-guiding medium of the light-guiding channel (6) being air; the light-guiding channel (6) has a light entrance opening (61) and a light exit opening (62), the light entrance opening (61) and light exit opening (62) being adjacent to the light source (1) and the light outlet (12), respectively; the light emitted from the light source (2) shines into the light-guiding channel (6) by means of the light entrance opening (61), and propagates to the light outlet (12) after being reflected from the inner side surface (51a) of the light-guiding cover panel (51) and the inner side surface (52a) of the light-guiding base plate (52). Such as light-guiding illuminated decorative apparatus has a low cost of manufacture and high efficiency of light utilization, and is capable of fully mixing multicolored light emitted by the light source (2).

Description

导光式照明装饰装置Light guide lighting decoration device 技术领域technical field

本发明涉及照明装饰技术。The present invention relates to lighting decoration technology.

背景技术Background technique

常见的用于车辆内部照明和装饰的部件(例如氛围灯)，通常包括用于发光的光源和带状导光元件。如图1所示，作为示例的现有照明装饰装置包括壳体1、光源2和导光元件3。壳体1具有内腔11和出光口12，光源2和导光元件3分别设置在内腔11中，导光元件3具有接受从光源2射入的光的入光面3a以及将射入的光射向出光口12的出光面3b。其中，壳体1由第一壳体部1a和第二壳体部1b组成，第一壳体部1a与第二壳体部1b彼此相连，并共同围成内腔11。光源2包括一个或多个发光单元21，发光单元21设置在电路板22上。发光单元21通常为LED。导光元件3由透明导光部31a和漫射导光部32a组成，入光面3a设置在透明导光部31a，出光面3b设置在漫射导光部32a。Common components used for vehicle interior lighting and decoration (such as ambient lighting) usually include light sources for lighting and strip light guide elements. As shown in FIG. 1 , the conventional lighting decoration device as an example includes a housing 1 , a light source 2 and a light guide element 3 . The housing 1 has an inner cavity 11 and a light outlet 12, the light source 2 and the light guide element 3 are respectively arranged in the inner cavity 11, and the light guide element 3 has a light incident surface 3a for receiving the light incident from the light source 2 and a The light is emitted to the light exit surface 3 b of the light exit port 12 . The housing 1 is composed of a first housing part 1a and a second housing part 1b, the first housing part 1a and the second housing part 1b are connected to each other and together form an inner cavity 11 . The light source 2 includes one or more light-emitting units 21 , and the light-emitting units 21 are arranged on the circuit board 22 . The light emitting unit 21 is usually an LED. The light guide element 3 is composed of a transparent light guide portion 31a and a diffused light guide portion 32a. The light incident surface 3a is provided on the transparent light guide portion 31a, and the light exit surface 3b is provided on the diffuse light guide portion 32a.

导光元件3主要用于满足出光均匀性或者多色混光的要求，通常由高分子聚合物材料制造，材料可选择的范围小且价格昂贵。同时该高分子聚合物对成型模具的要求极高(例如要求表面高抛光)，以达到降低光损的目的。即使如此，光在传导过程中尤其是在漫射导光部分损失仍较大，光效低，有效光利用率仅为10％左右。The light guide element 3 is mainly used to meet the requirements of light output uniformity or multi-color light mixing, and is usually made of high molecular polymer material, and the material selection range is small and expensive. At the same time, the high molecular polymer has extremely high requirements on the forming mold (for example, high surface polishing is required), so as to achieve the purpose of reducing light loss. Even so, the loss of light in the process of transmission, especially in the diffused light-guiding part, is still large, the light efficiency is low, and the effective light utilization rate is only about 10%.

为了克服上述缺陷，新的技术方案采用了碗状聚光器4来替代现有的导光元件3，如图2所示。碗状聚光器4由非透明材料制成，表面有反光金属层，或者直接由高反射率的白色材料制成。碗状聚光器4以空气作为导光介质，该结构开口较大且反射碗的形状遵循抛物线原则。当所需的发光区域较长时，沿着碗状聚光器4的长度方向(垂直于图2纸面的方向)设置若干个反射碗。但是，由于碗状聚光器4的每个反射碗射出的是基本平行的出射光，导致在长度方向上，各个反射碗的照明区域之间会存在较暗的区域，即沿长度方向上存在一定的不均匀性，在某些情况下这是不利的。其次，由于碗状聚光器4需要一 体成形，为保证模具加工的可行性以及便于脱模，碗状聚光器4的光出射口的高度无法设计得过小(一般为出光口12的高度的3倍以上)，这会导致在开口处光线浪费较多，光线利用率低。另外，碗状聚光器4主要利用抛物面形的反射区域反射光源发出的光，若减小碗状聚光器4的反射碗的光出射口的高度，还会导致抛物面形的反射区域变小、经抛物面形反射区域反射至出光口的光线变少，而连接着抛物面形反射区域的平面状反射区域可能会正对光源、导致大量光线被反射至碗状聚光器4的入口处，因而碗状聚光器4的光出射口处的亮度反而没有得到有效提升。In order to overcome the above-mentioned defects, the new technical solution adopts a bowl-shaped concentrator 4 to replace the existing light guide element 3, as shown in FIG. 2 . The bowl-shaped concentrator 4 is made of non-transparent material with a reflective metal layer on the surface, or directly made of white material with high reflectivity. The bowl-shaped concentrator 4 uses air as the light-guiding medium, and the structure has a large opening and the shape of the reflecting bowl follows the parabola principle. When the required light-emitting area is long, several reflecting bowls are arranged along the length direction of the bowl-shaped concentrator 4 (the direction perpendicular to the paper surface of FIG. 2 ). However, since each reflecting bowl of the bowl-shaped concentrator 4 emits substantially parallel outgoing light, there will be a darker area between the illumination areas of the respective reflecting bowls in the length direction, that is, along the length direction A certain inhomogeneity, which is disadvantageous in some cases. Secondly, since the bowl-shaped concentrator 4 needs to be integrally formed, in order to ensure the feasibility of mold processing and facilitate demolding, the height of the light exit port of the bowl-shaped concentrator 4 cannot be designed to be too small (generally the height of the light exit port 12 ). more than 3 times), which will lead to more waste of light at the opening and low light utilization. In addition, the bowl-shaped concentrator 4 mainly uses the parabolic reflection area to reflect the light emitted by the light source. If the height of the light exit port of the reflection bowl of the bowl-shaped condenser 4 is reduced, the parabolic reflection area will also become smaller. , The light reflected from the parabolic reflective area to the light outlet decreases, and the planar reflective area connected to the parabolic reflective area may face the light source, causing a large amount of light to be reflected to the entrance of the bowl-shaped concentrator 4, so On the contrary, the brightness at the light exit port of the bowl-shaped concentrator 4 is not effectively improved.

发明内容SUMMARY OF THE INVENTION

本发明所要解决的技术问题在于提供一种制造成本低、光损小、光线利用效率高、能够充分混合光源发出的多色光的照明装饰装置。The technical problem to be solved by the present invention is to provide a lighting decoration device with low manufacturing cost, small light loss, high light utilization efficiency, and capable of fully mixing the multicolor light emitted by the light source.

根据本发明实施例的导光式照明装饰装置，包括壳体、光源和导光通道；壳体具有内腔和出光口，光源和导光通道分别设置在内腔中，其特点在于，导光式照明装饰装置包括非透明的导光盖板和非透明的导光底板，导光通道由导光盖板与导光底板之间的间隙构成，导光通道的导光介质为空气；导光通道具有光入射口和光出射口，光入射口和光出射口分别靠近光源和出光口；光源发出的光通过光入射口射入导光通道，并经过导光盖板内侧表面和导光底板内侧表面的反射后传播至出光口。The light guide type lighting decoration device according to the embodiment of the present invention includes a housing, a light source and a light guide channel; the housing has an inner cavity and a light outlet, and the light source and the light guide channel are respectively arranged in the inner cavity. The type lighting decoration device includes an opaque light guide cover plate and an opaque light guide base plate, the light guide channel is formed by the gap between the light guide cover plate and the light guide base plate, and the light guide medium of the light guide channel is air; The channel has a light entrance port and a light exit port, and the light entrance port and the light exit port are respectively close to the light source and the light exit port; the light emitted by the light source enters the light guide channel through the light entrance port, and passes through the inner surface of the light guide cover and the inner surface of the light guide base plate. After reflection, it propagates to the light outlet.

上述的导光式照明装饰装置，其中，光出射口正对出光口，且光出射口的高度为出光口的高度的0.8～2倍，光出射口的长度为出光口的长度的0.8～1.2倍。In the above-mentioned light-guiding lighting decoration device, wherein the light exit port is facing the light exit port, the height of the light exit port is 0.8-2 times the height of the light exit port, and the length of the light exit port is 0.8-1.2 times the length of the light exit port. times.

上述的导光式照明装饰装置，其中，光出射口的高度为出光口的高度的1～1.2倍，光出射口的长度为出光口的长度的1～1.1倍，光出射口完全包围出光口在光出射口上的投影。In the above-mentioned light-guiding lighting decoration device, the height of the light exit port is 1 to 1.2 times the height of the light exit port, the length of the light exit port is 1 to 1.1 times the length of the light exit port, and the light exit port completely surrounds the light exit port. Projection on the light exit port.

本发明至少具有以下优点：The present invention has at least the following advantages:

1、本发明实施例的导光通道利用成本低廉的空气作为导光介质，与现有的高分子聚合物导光元件相比，减少了对模具精度的要求，降低了制造成本， 同时对装配公差的要求较低，简化了制造及装配工艺，此外也避免了高分子聚合物介质由于光学折射造成的光线浪费，降低了光线损失；1. The light guide channel of the embodiment of the present invention uses low-cost air as the light guide medium. Compared with the existing high molecular polymer light guide element, the requirements for the precision of the mold are reduced, the manufacturing cost is reduced, and the assembly is not required. The requirement of tolerance is low, which simplifies the manufacturing and assembly process, and also avoids the waste of light caused by the optical refraction of the polymer medium, and reduces the light loss;

2、本发明实施例的导光通道，光不会被局限在反光碗的正前方，因而沿着长度方向上的光的均匀性更高；并且可以让多色LED(例如RGB LED)发出的多色光在其中充分均匀混合，实现任意色均匀光，进而实现良好的显示效果；2. In the light guide channel of the embodiment of the present invention, the light will not be limited to the front of the reflector, so the uniformity of the light along the length direction is higher; The multi-color light is fully and uniformly mixed in it to achieve uniform light of any color, thereby achieving a good display effect;

3、导光通道的形状设计灵活多变，可根据光学效果需要自由选择、搭配，同时，导光通道的光入射口和光出射口尺寸可变，光入射口至光出射口的光程距离也可根据光学效果需求灵活设计，从而适应不同的需求；3. The shape design of the light guide channel is flexible and changeable, and can be freely selected and matched according to the needs of the optical effect. At the same time, the size of the light entrance and the light exit port of the light guide channel can be changed, and the optical path distance from the light entrance to the light exit port is also variable. It can be flexibly designed according to the needs of optical effects, so as to adapt to different needs;

4、导光通道的导光盖板和导光底板分别加工成型，对模具的加工要求低、脱模简单；导光盖板和导光底板形成的导光通道的尺寸可以任意调整，从而可控制导光通道的光出射口的高度为出光口高度的0.8-2倍、长度为出光口长度的0.8-1.2倍范围内，在光出射口处光线浪费少，并且光源射出的光线基本完全聚集在导光通道中并被引导至光出射口，且无其它出口，大大提升了LED光线利用率，从出光口输出的光线具有较强的光线强度。4. The light guide cover plate and the light guide base plate of the light guide channel are processed and formed separately, with low processing requirements for the mold and simple demoulding; the size of the light guide channel formed by the light guide cover plate and the light guide base plate can be adjusted arbitrarily, so that the The height of the light exit port of the control light guide channel is 0.8-2 times the height of the light exit port, and the length is within the range of 0.8-1.2 times the length of the light exit port, the light waste at the light exit port is less, and the light emitted by the light source is basically completely concentrated It is guided to the light exit port in the light guide channel, and there is no other exit, which greatly improves the utilization rate of LED light, and the light output from the light exit port has a strong light intensity.

附图概述BRIEF DESCRIPTION OF THE DRAWINGS

下面结合附图对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings.

图1示出了现有的一种照明装饰装置的剖面结构示意图。FIG. 1 shows a schematic cross-sectional structure diagram of a conventional lighting decoration device.

图2示出了现有的另一种照明装饰装置的剖面结构示意图。FIG. 2 shows a schematic cross-sectional structure diagram of another conventional lighting decoration device.

图3示出了根据本发明一实施例的导光式照明装饰装置的剖面结构示意图。FIG. 3 shows a schematic cross-sectional structure diagram of a light guide type lighting decoration device according to an embodiment of the present invention.

图4示出了根据本发明一实施例的导光盖板与导光底板的结构示意图。FIG. 4 shows a schematic structural diagram of a light guide cover plate and a light guide base plate according to an embodiment of the present invention.

图5示出了根据本发明另一实施例的导光盖板与导光底板的横截面示意图。FIG. 5 shows a schematic cross-sectional view of a light guide cover plate and a light guide base plate according to another embodiment of the present invention.

本发明的最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION

图3示出了根据本发明第一实施例的导光式照明装饰装置的剖面结构示意 图。图4示出了根据本发明一实施例的导光盖板与导光底板的结构示意图。请参阅图3和图4。根据本发明第一实施例的导光式照明装饰装置，包括壳体1、光源2、非透明的导光盖板51和非透明的导光底板52。Fig. 3 shows a schematic cross-sectional structure diagram of the light guide type lighting decoration device according to the first embodiment of the present invention. FIG. 4 shows a schematic structural diagram of a light guide cover plate and a light guide base plate according to an embodiment of the present invention. See Figures 3 and 4. The light-guiding lighting decoration device according to the first embodiment of the present invention includes a casing 1 , a light source 2 , a non-transparent light-guiding cover plate 51 and an opaque light-guiding base plate 52 .

壳体1具有内腔11和出光口12。在本实施例中，壳体1由第一壳体部1a和第二壳体部1b组成，第一壳体部1a与第二壳体部1b彼此相连，并共同围成内腔11。第一壳体部1a与第二壳体部1b连接的方式可以是卡扣连接或热铆连接、或者是通过独立的连接元件(例如螺丝)相互连接等。第一壳体部1a与第二壳体部1b可以由相同塑料制成，亦可由不同塑料制成。The housing 1 has an inner cavity 11 and a light outlet 12 . In this embodiment, the casing 1 is composed of a first casing part 1a and a second casing part 1b, the first casing part 1a and the second casing part 1b are connected to each other and together form an inner cavity 11 . The first housing part 1a and the second housing part 1b may be connected by snap connection or heat riveting connection, or connected to each other by independent connecting elements (eg, screws). The first casing part 1a and the second casing part 1b can be made of the same plastic, or can be made of different plastics.

导光盖板51与导光底板52之间的间隙形成导光通道6。导光盖板51与导光底板52分别加工形成，再组合形成导光通道6。光源2和导光通道6均设置在内腔11中。导光通道6的导光介质为空气。导光通道6具有光入射口61和光出射口62，光入射口61和光出射口62分别靠近光源2和出光口12。The gap between the light guide cover plate 51 and the light guide base plate 52 forms the light guide channel 6 . The light guide cover plate 51 and the light guide base plate 52 are processed and formed separately, and then combined to form the light guide channel 6 . Both the light source 2 and the light guide channel 6 are arranged in the inner cavity 11 . The light guide medium of the light guide channel 6 is air. The light guide channel 6 has a light entrance port 61 and a light exit port 62 , and the light entrance port 61 and the light exit port 62 are respectively close to the light source 2 and the light exit port 12 .

光源2发出的光通过光入射口61射入导光通道6，并经过导光盖板内侧表面51a和导光底板内侧表面52a的反射后传播至出光口12。射入导光通道6的光至少经过导光盖板内侧表面51a的一次反射和导光底板内侧表面52a的一次反射(即在导光通道6内至少反射两次)才会射到出光口12，这有利于多色光在其中充分均匀混合，以及使得光能够在导光通路的长度和高度方向进一步扩散从而使得在光出射口的长度和高度方向上亮度均匀性更高。图3中的虚线及箭头示意性地示出了光线传播的方向。The light emitted by the light source 2 enters the light guide channel 6 through the light incident port 61 , and is reflected by the inner surface 51 a of the light guide cover and the inner surface 52 a of the light guide base plate and then propagates to the light outlet 12 . The light entering the light guide channel 6 will be emitted to the light outlet 12 only after at least one reflection on the inner surface 51a of the light guide cover and one reflection on the inner surface 52a of the light guide bottom plate (that is, at least two reflections in the light guide channel 6 ). , which is beneficial for the polychromatic light to be sufficiently uniformly mixed therein, and enables the light to be further diffused in the length and height directions of the light guide path so that the brightness uniformity is higher in the length and height directions of the light exit port. The dashed lines and arrows in FIG. 3 schematically show the directions of light propagation.

根据需要，导光通道6的内壁(即导光盖板内侧表面51a和导光底板内侧表面52a)可以是光滑面或设置光学花纹，导光通道6的内壁还可以设置反光层，该反光层例如是喷涂或者电镀的反光金属层，如铝、铬等金属层，从而可以提高光的利用率和亮度。According to needs, the inner wall of the light guide channel 6 (that is, the inner surface 51a of the light guide cover plate and the inner surface 52a of the light guide bottom plate) can be smooth or provided with optical patterns, and the inner wall of the light guide channel 6 can also be provided with a reflective layer. For example, it is a sprayed or electroplated reflective metal layer, such as aluminum, chromium and other metal layers, so that the utilization rate and brightness of light can be improved.

可选地，位于导光通道6内的导光盖板内侧表面51a和导光底板内侧表面52a以相同的趋势延伸。例如，导光盖板内侧表面沿直线延伸，则导光底板内侧表面52a也沿着直线延伸，如导光盖板内侧表面51a弯曲，则导光底板内侧表面52a也跟着弯曲，二者可以平行，也可以在延伸角度或曲率方面略有区别。由此可保证大部分光的光程基本相同，从而有利于改善光出射口处的亮度的均 匀性。Optionally, the inside surface 51a of the light guide cover plate and the inside surface 52a of the light guide base plate located in the light guide channel 6 extend in the same trend. For example, if the inner surface of the light guide cover extends along a straight line, the inner surface 52a of the light guide plate also extends along a straight line. If the inner surface 51a of the light guide cover is curved, the inner surface 52a of the light guide plate also bends, and the two can be parallel. , can also differ slightly in extension angle or curvature. In this way, it can be ensured that the optical paths of most of the lights are substantially the same, which is beneficial to improve the uniformity of the brightness at the light exit port.

在本实施例中，导光通道6的形状为弧形折弯形。弧形折弯形导光通道6包括弧形段6a和直线段6b，弧形段6a的一端与直线段6b的一端相连；光入射口61位于弧形段6a的另一端，光出射口62位于直线段6b的另一端。弧形段6a的形状可以是圆弧形、抛物线形等等。在其它的实施例中，导光通道6的形状为波浪形。通过将导光通道6设置为非直线形状，可以提升多色混光及均匀性效果，并避免光线不经反射直接达到出光口12。折弯形导光通道6的折弯角度、以及导光通道的宽度和高度均可根据光学需要灵活调整。如将导光通道6的形状设为直线形，此时导光通道6将光源2的入射光直射传播至出光口12，虽然可调整发光单元21的数量或者在出光部7的内外侧增加光学花纹或者皮纹,但光的均匀性、多色混光的效果仍然会较差。In this embodiment, the shape of the light guide channel 6 is an arc-shaped bending shape. The arc-shaped bending light guide channel 6 includes an arc-shaped segment 6a and a straight-line segment 6b, one end of the arc-shaped segment 6a is connected with one end of the straight-line segment 6b; the light entrance 61 is located at the other end of the arc-shaped segment 6a, and the light exit port 62 at the other end of the straight line segment 6b. The shape of the arc-shaped segment 6a may be a circular arc, a parabola, or the like. In other embodiments, the shape of the light guide channel 6 is a wave shape. By setting the light guide channel 6 in a non-linear shape, the effect of multi-color light mixing and uniformity can be improved, and the light can be prevented from directly reaching the light outlet 12 without being reflected. The bending angle of the bent light guide channel 6 and the width and height of the light guide channel can be flexibly adjusted according to optical needs. If the shape of the light guide channel 6 is set as a straight line, at this time, the light guide channel 6 directly transmits the incident light of the light source 2 to the light outlet 12 , although the number of the light emitting units 21 can be adjusted or the optical fiber can be added to the inner and outer sides of the light outlet 7 . Pattern or skin pattern, but the uniformity of light and the effect of multi-color mixing will still be poor.

可选地，光出射口62正对出光口12，且光出射口62的高度h1为出光口12的高度的0.8-2倍、长度为出光口12的长度的0.8-1.2倍，此时可满足均匀性及多色混光的要求并且相比现有技术可提高光的利用率。较佳地，光出射口62的高度h1为出光口12的高度的1～1.2倍，光出射口62的长度L1为出光口12的长度的1～1.1倍。如图5所示，图中用虚线示出了出光口12在光出射口62上的投影12a。光出射口62完全包围出光口12在光出射口62上的投影。由于光出射口62大于出光口12，对装配公差的要求降低，简化了制造及装配工艺，并且导光通道6的侧面无需封闭，即导光盖板51与导光底板52在侧面上彼此可以没有连接关系，可进一步降低加工难度和成本。Optionally, the light exit port 62 is facing the light exit port 12, and the height h1 of the light exit port 62 is 0.8-2 times the height of the light exit port 12, and the length is 0.8-1.2 times the length of the light exit port 12. It meets the requirements of uniformity and multi-color light mixing and can improve the utilization rate of light compared with the prior art. Preferably, the height h1 of the light exit port 62 is 1˜1.2 times the height of the light exit port 12 , and the length L1 of the light exit port 62 is 1˜1.1 times the length of the light exit port 12 . As shown in FIG. 5 , the dotted line shows the projection 12 a of the light exit port 12 on the light exit port 62 . The light exit opening 62 completely surrounds the projection of the light exit opening 12 on the light exit opening 62 . Since the light exit port 62 is larger than the light exit port 12, the requirements for assembly tolerance are reduced, the manufacturing and assembly process are simplified, and the side surface of the light guide channel 6 does not need to be closed, that is, the light guide cover plate 51 and the light guide base plate 52 are mutually compatible on the side surface. There is no connection relationship, which can further reduce the processing difficulty and cost.

在其它实施例中，也可以使导光盖板51与导光底板52彼此相连。例如导光盖板51的一侧通过第一侧板(图中未示出)与导光底板52的一侧连接，导光盖板51的另一侧通过第二侧板(图中未示出)与导光底板52的另一侧连接，从而将导光通道6的两侧封闭。In other embodiments, the light guide cover plate 51 and the light guide base plate 52 can also be connected to each other. For example, one side of the light guide cover plate 51 is connected to one side of the light guide base plate 52 through a first side plate (not shown in the figure), and the other side of the light guide cover plate 51 is connected through a second side plate (not shown in the figure) (outlet) is connected to the other side of the light guide base plate 52 , so as to close both sides of the light guide channel 6 .

在本实施例中，光源、导光盖板51和导光底板52分别固定连接于第一壳体部1a和/或第二壳体部1b，固定连接的方式包括但不限于卡扣连接或者是通过独立的连接元件(例如螺丝)相互连接等。为避免光源2相对导光盖板51和导光底板52的移动或安装位置偏差导致发光效果的变化，进一步地，导光 式照明装饰装置还设有定位结构，该定位结构用于固定光源2、导光盖板51和导光底板52的相对位置关系。较佳地，光源、导光盖板51和导光底板52均固定连接于第一壳体部1a或第二壳体部1b中的同一个上(例如均固定连接于第二壳体部1b上)，且光源2通过定位元件或定位结构直接与导光盖板51和导光底板52定位、固定。如果光源2、导光盖板51和导光底板52分别与壳体相连，由于存在装配公差，不同产品中光源2与导光通道6之间的位置关系会存在差异，因而会导致不同的产品之间存在发光效果的差异。In this embodiment, the light source, the light guide cover plate 51 and the light guide base plate 52 are respectively fixedly connected to the first housing part 1a and/or the second housing part 1b, and the fixed connection methods include but are not limited to snap connection or They are connected to each other by means of separate connecting elements (eg screws). In order to prevent the light source 2 from moving relative to the light guide cover plate 51 and the light guide base plate 52 or the deviation of the installation position resulting in changes in the luminous effect, further, the light guide lighting decoration device is further provided with a positioning structure, which is used for fixing the light source 2. , The relative positional relationship between the light guide cover plate 51 and the light guide base plate 52 . Preferably, the light source, the light guide cover plate 51 and the light guide base plate 52 are all fixedly connected to the same one of the first casing part 1a or the second casing part 1b (for example, they are all fixedly connected to the second casing part 1b). above), and the light source 2 is directly positioned and fixed with the light guide cover plate 51 and the light guide base plate 52 through the positioning element or the positioning structure. If the light source 2, the light guide cover plate 51 and the light guide base plate 52 are respectively connected to the housing, due to assembly tolerances, the positional relationship between the light source 2 and the light guide channel 6 in different products will be different, which will lead to different products. There is a difference in glow effect.

在其它的实施方式中，导光盖板51和/或导光底板52与壳体1一体形成。In other embodiments, the light guide cover plate 51 and/or the light guide bottom plate 52 are integrally formed with the housing 1 .

在本实施例中，导光式照明装饰装置还包括出光部7，出光部7设置在导光通道的光出射口62与出光口12之间，并通过某种元件，例如胶、安装结构等与第二壳体部1b连接。出光部7具有接受从光出射口62射入的光的入光面7a以及将射入的光射出的出光面7b，出光面7b正对出光口12。出光部7可以将射入的光更均匀地混合，或显示特定的图案，从而达到更好的光学效果。出光部7并非是必须的，可以根据发光效果选择。In this embodiment, the light-guiding lighting decoration device further includes a light-exiting part 7, which is arranged between the light-exiting port 62 of the light-guiding channel and the light-exiting port 12, and passes through certain components, such as glue, mounting structure, etc. Connected to the second housing portion 1b. The light exit portion 7 has a light incident surface 7 a for receiving light incident from the light exit port 62 and a light exit surface 7 b for exiting the incident light, and the light exit surface 7 b faces the light exit port 12 . The light emitting part 7 can mix the incident light more uniformly, or display a specific pattern, so as to achieve a better optical effect. The light-emitting part 7 is not necessary, and can be selected according to the light-emitting effect.

在其它的实施方式中，第二壳体部1b与出光部7一体成形。作为一种具体的实施方式，第二壳体部1b和出光部7通过注塑一体成形。第一壳体部1a和第二壳体部1b均由非透明塑料制成；第一壳体部1a和第二壳体部1b的外表面根据要求可喷涂不同颜色液体溶剂以满足内饰颜色、光泽等要求，液体溶剂为透明溶剂或非透明有色溶剂，可喷涂多层的液体溶剂。出光部7由无色透明塑料制成，并且具有散射颗粒、气孔、皮纹、光学花纹等，出光部7也可由半透明塑料制成，例如漫射塑料。通过将出光部与壳体一体成形，简化了安装，减少了公差累计，从而达到了较好的光学效果。In other embodiments, the second housing portion 1b and the light emitting portion 7 are integrally formed. As a specific embodiment, the second housing portion 1b and the light-emitting portion 7 are integrally formed by injection molding. Both the first housing part 1a and the second housing part 1b are made of non-transparent plastic; the outer surfaces of the first housing part 1a and the second housing part 1b can be sprayed with different colors of liquid solvents according to requirements to meet the interior color , gloss and other requirements, the liquid solvent is a transparent solvent or a non-transparent colored solvent, and multiple layers of liquid solvent can be sprayed. The light emitting part 7 is made of colorless transparent plastic, and has scattering particles, pores, dermatoglyphics, optical patterns, etc. The light emitting part 7 can also be made of translucent plastic, such as diffusing plastic. By integrally forming the light emitting part and the casing, the installation is simplified and the accumulation of tolerances is reduced, thereby achieving a better optical effect.

在其它的实施方式中，第一壳体部1a与出光部7彼此连接或者一体成形。或者是，出光部7与导光盖板51或导光底板52连接，然后以分总成形式与第一壳体部1a或者第二壳体部1b固定连接。In other embodiments, the first housing portion 1a and the light exit portion 7 are connected to each other or integrally formed. Alternatively, the light emitting portion 7 is connected to the light guide cover plate 51 or the light guide base plate 52, and then fixedly connected to the first housing portion 1a or the second housing portion 1b in the form of a sub-assembly.

在本实施例中，光源2包括若干个发光单元21，发光单元21设置在电路板22上，电路板22可以是刚性或者柔性的电路板。上述的“若干个”的含义为一个或多个。本实施例中，发光单元21为LED，LED的数量为多个，多个 LED排列成一行，多个LED物理及电气相连。多个LED可发出单色光或多色光，当多个LED的发光颜色不同时，可产生混合光，例如混合白光。In this embodiment, the light source 2 includes several light-emitting units 21, and the light-emitting units 21 are arranged on a circuit board 22, and the circuit board 22 may be a rigid or flexible circuit board. The above-mentioned "several" means one or more. In this embodiment, the light-emitting unit 21 is an LED, the number of LEDs is multiple, the multiple LEDs are arranged in a row, and the multiple LEDs are physically and electrically connected. A plurality of LEDs can emit monochromatic light or polychromatic light, and when the emitting colors of the plurality of LEDs are different, mixed light, such as mixed white light, can be generated.

进一步地，各发光单元21部分地伸入导光通道6的光入射口61中。Further, each light emitting unit 21 partially extends into the light entrance 61 of the light guide channel 6 .

本实施例的导光式照明装饰装置可设置于汽车的挡风玻璃与仪表盘之间。The light guide type lighting decoration device of this embodiment can be arranged between the windshield and the instrument panel of the automobile.

本发明实施例的导光通道利用成本低廉的空气作为导光介质，与现有的高分子聚合物导光元件相比，减少了对模具精度的要求，降低了制造成本，同时对装配公差的要求较低，简化了制造及装配工艺，此外也避免了高分子聚合物介质由于光学折射造成的光线浪费，降低了光线损失，在达同等亮度的情况下光源可以采用更少数量的发光单元，从而降低了制造成本。The light guide channel of the embodiment of the present invention uses low-cost air as the light guide medium. Compared with the existing high molecular polymer light guide element, the requirements for the precision of the mold are reduced, the manufacturing cost is reduced, and the assembly tolerance is reduced. The requirements are lower, the manufacturing and assembly processes are simplified, and the waste of light caused by the optical refraction of the polymer medium is avoided, and the light loss is reduced. Thus, the manufacturing cost is reduced.

工业实用性Industrial Applicability

根据本发明实施例的导光式照明装饰装置可设置于汽车的挡风玻璃与仪表盘之间，其制造成本低，光损小，光线利用效率高，能够充分混合光源发出的多色光。The light-guiding lighting decoration device according to the embodiment of the present invention can be arranged between the windshield and the instrument panel of the automobile, has low manufacturing cost, low light loss, high light utilization efficiency, and can fully mix the multicolor light emitted by the light source.

Claims (13)

一种导光式照明装饰装置，包括壳体、光源和导光通道；所述壳体具有内腔和出光口，所述光源和所述导光通道分别设置在所述内腔中，其特征在于，所述导光式照明装饰装置包括非透明的导光盖板和非透明的导光底板，所述导光通道由所述导光盖板与所述导光底板之间的间隙构成，所述导光通道的导光介质为空气；所述导光通道具有光入射口和光出射口，所述光入射口和所述光出射口分别靠近所述光源和所述出光口；A light-guiding lighting decoration device includes a casing, a light source and a light-guiding channel; the casing has an inner cavity and a light outlet, the light source and the light-guiding channel are respectively arranged in the inner cavity, and the characteristics are: In this case, the light guide type lighting decoration device includes an opaque light guide cover plate and an opaque light guide base plate, and the light guide channel is formed by a gap between the light guide cover plate and the light guide base plate, The light guide medium of the light guide channel is air; the light guide channel has a light entrance port and a light exit port, and the light entrance port and the light exit port are respectively close to the light source and the light exit port; 所述光源发出的光通过所述光入射口射入导光通道，并经过导光盖板内侧表面和导光底板内侧表面的反射后传播至所述出光口。The light emitted by the light source enters the light guide channel through the light entrance port, and is reflected by the inner surface of the light guide cover plate and the inner surface of the light guide base plate and then propagates to the light exit port. 根据权利要求1所述的导光式照明装饰装置，其特征在于，所述光出射口正对所述出光口，且所述光出射口的高度为所述出光口的高度的0.8～2倍，所述光出射口的长度为所述出光口的长度的0.8～1.2倍。The light guide type lighting decoration device according to claim 1, wherein the light exit port is facing the light exit port, and the height of the light exit port is 0.8 to 2 times the height of the light exit port. , the length of the light exit port is 0.8 to 1.2 times the length of the light exit port. 根据权利要求1所述的导光式照明装饰装置，其特征在于，所述光出射口的高度为所述出光口的高度的1～1.2倍，所述光出射口的长度为所述出光口的长度的1～1.1倍，所述光出射口完全包围所述出光口在所述光出射口上的投影。The light guide type lighting decoration device according to claim 1, wherein the height of the light exit port is 1-1.2 times the height of the light exit port, and the length of the light exit port is the same as that of the light exit port. 1 to 1.1 times the length of the light exit port, the light exit port completely surrounds the projection of the light exit port on the light exit port. 根据权利要求1所述的导光式照明装饰装置，其特征在于，所述导光通道的形状为非直线形。The light guide type lighting decoration device according to claim 1, wherein the shape of the light guide channel is a non-linear shape. 根据权利要求1或4所述的导光式照明装饰装置，其特征在于，所述导光通道的形状为弧形折弯形或波浪形；The light-guiding lighting decoration device according to claim 1 or 4, wherein the shape of the light-guiding channel is an arc-shaped bending shape or a wavy shape; 弧形折弯形导光通道包括弧形段和直线段，所述弧形段的一端与所述直线段的一端相连；所述光入射口位于所述弧形段的另一端，所述光出射口位于所述直线段的另一端。The arc-shaped bending light guide channel includes an arc-shaped segment and a straight-line segment, one end of the arc-shaped segment is connected with one end of the straight-line segment; the light entrance is located at the other end of the arc-shaped segment, and the light The exit port is located at the other end of the straight line segment. 根据权利要求1所述的导光式照明装饰装置，其特征在于，所述导光通道的内壁为光滑面、或设有光学花纹、或设有反光层。The light guide type lighting decoration device according to claim 1, wherein the inner wall of the light guide channel is a smooth surface, or is provided with an optical pattern, or is provided with a reflective layer. 根据权利要求1所述的导光式照明装饰装置，其特征在于，所述导光式 照明装饰装置包括定位结构，所述定位结构用于固定所述光源、所述导光盖板和所述导光底板的相对位置关系。The light guide type lighting decoration device according to claim 1, wherein the light guide type lighting decoration device comprises a positioning structure, and the positioning structure is used for fixing the light source, the light guide cover and the The relative positional relationship of the light guide base plate. 根据权利要求1或7所述的导光式照明装饰装置，其特征在于，所述导光盖板和/或所述导光底板与所述壳体固定连接或者与所述壳体一体形成。The light guide type lighting decoration device according to claim 1 or 7, wherein the light guide cover plate and/or the light guide base plate are fixedly connected with the casing or formed integrally with the casing. 根据权利要求1所述的导光式照明装饰装置，其特征在于，所述导光式照明装饰装置包括出光部，所述出光部设置在所述导光通道的光出射口与所述出光口之间，并与所述壳体、所述导光盖板或所述导光底板连接或者与所述壳体一体形成；The light guide type lighting decoration device according to claim 1, wherein the light guide type lighting decoration device comprises a light exit part, and the light exit part is arranged at the light exit port of the light guide channel and the light exit port between, and is connected with the casing, the light guide cover or the light guide base plate, or is integrally formed with the casing; 所述出光部具有接受从所述光出射口射入的光的入光面以及将射入的所述光射出的出光面，所述出光面正对所述出光口。The light emitting portion has a light incident surface for receiving the light incident from the light emitting port and a light emitting surface for emitting the incident light, and the light emitting surface is facing the light emitting port. 根据权利要求9所述的导光式照明装饰装置，其特征在于，所述壳体由非透明塑料制成；所述出光部由无色透明材料或漫射材料制成。The light-guiding lighting decoration device according to claim 9, wherein the housing is made of non-transparent plastic; the light-emitting portion is made of a colorless transparent material or a diffusing material. 根据权利要求1所述的导光式照明装饰装置，其特征在于，所述壳体由第一壳体部和第二壳体部组成，所述第一壳体部与所述第二壳体部彼此相连，并共同围成所述的内腔。The light guide type lighting decoration device according to claim 1, wherein the casing is composed of a first casing part and a second casing part, the first casing part and the second casing The parts are connected to each other and together form the inner cavity. 根据权利要求1所述的导光式照明装饰装置，其特征在于，所述光源包括若干个发光单元；各所述发光单元部分地伸入所述导光通道的光入射口中。The light guide type lighting decoration device according to claim 1, wherein the light source comprises a plurality of light emitting units; and each light emitting unit partially extends into the light entrance of the light guide channel. 根据权利要求1所述的导光式照明装饰装置，其特征在于，位于所述导光通道内的导光盖板内侧表面和所述导光底板内侧表面以相同的趋势延伸。The light guide type lighting decoration device according to claim 1, wherein the inner side surface of the light guide cover plate and the inner side surface of the light guide base plate located in the light guide channel extend in the same trend.
PCT/CN2021/119934 2020-10-10 2021-09-23 Light-guiding illuminated decorative apparatus Ceased WO2022073421A1 (en)

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