Light guide structure and audio equipment

Abstract

This utility model discloses a light guide structure and an audio device, relating to the field of light transmission technology. The light guide structure includes a housing, a light guide component, and a light-emitting element. The housing has a mounting groove. The light guide component is disposed in the mounting groove and has a light-emitting surface for light to be emitted. The light-emitting surface is exposed at the opening of the mounting groove. The end of the light guide component has an incident end face for light to be incident, and the incident end face has a focusing groove. The light-emitting element is disposed at the end of the light guide component and is arranged corresponding to the focusing groove.

Description

Technical Field

[0001] This utility model relates to the field of light transmission technology, and in particular to a light guiding structure and an audio device. Background Technology

[0002] With the continuous development of technology, audio equipment is being used more and more widely in people's lives. In order to enhance the visual effects and user experience of audio equipment, more and more audio equipment is beginning to use light guide technology to achieve lighting effects.

[0003] In related technologies, the speaker housing typically includes an outer shell, a light guide strip, and a lamp plate. The outer shell has a light-transmitting groove, and the light guide strip is embedded in the light-transmitting groove. The side of the light guide strip facing the outside of the outer shell has an emission surface for light to be emitted, and the end of the light guide strip has an incident end surface for light to be incident. The lamp plate has lamp beads, which are located at the end of the light guide strip and close to the incident end surface.

[0004] However, the light guide bar's light inlet design is relatively simple, usually just a plain planar structure, which makes the light incident effect less than ideal, unable to make full use of the light, resulting in insufficient brightness and uniformity of the light. Utility Model Content

[0005] The main purpose of this invention is to propose a light guide structure and an audio device, which aims to improve the incident efficiency and distribution uniformity of light.

[0006] To achieve the above objectives, the light guide structure proposed in this utility model includes:

[0007] A housing having a mounting groove;

[0008] A light guide, disposed within the mounting groove, having an emitting surface for light to be emitted, the emitting surface being exposed at the opening of the mounting groove, and an incident end face for light to be incident, the incident end face having a focusing groove; and

[0009] A light-emitting element is disposed at the end of the light guide and is arranged corresponding to the light-concentrating groove.

[0010] This utility model also proposes an audio device, including the light guide structure described in the above embodiments. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0012] Figure 1 A schematic diagram of an embodiment of the light guide structure provided by this utility model;

[0013] Figure 2 A first cross-sectional view of an embodiment of the light guide structure of this utility model;

[0014] Figure 3 A schematic diagram of a structure of an embodiment of the optical guide provided by this utility model;

[0015] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0016] Figure 5 A second cross-sectional view of an embodiment of the light guide structure of this utility model;

[0017] Figure 6 for Figure 5 Enlarged view of section B in the middle;

[0018] Figure 7 A third cross-sectional view of an embodiment of the light guide structure of this utility model;

[0019] Figure 8 for Figure 7 Enlarged view of section C in the middle;

[0020] Figure 9 A fourth cross-sectional view of an embodiment of the light guide structure of this utility model;

[0021] Figure 10 for Figure 9 A magnified view of a local area at point D.

[0022] Explanation of icon numbers:

[0023] 100. Light guide structure; 1. Housing; 11. Mounting groove; 12. Inner housing; 121. Connecting section; 121a. Positioning post; 121b. Snap-fit ​​part; 13. Outer housing; 131. Hook; 132. Light shielding part; 2. Light guide component; 21. Light emitting surface; 22. Incident end face; 221. Focusing groove; 222. Reflective surface; 23. Light guide section; 24. Textured surface; 25. Positioning section; 251. Positioning hole; 26. Positioning groove; 3. Light-emitting element; 31. Lamp bead; 32. Main board; 4. Iron mesh.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This utility model proposes a light guide structure 100.

[0029] Please see Figure 5 and Figure 6 In one embodiment of this utility model, the light guide structure 100 includes a housing 1, a light guide 2, and a light-emitting element 3. The housing 1 forms a mounting groove 11. The light guide 2 is disposed in the mounting groove 11 and has a light-emitting surface 21 for emitting light. The light-emitting surface 21 is exposed at the opening of the mounting groove 11. The end of the light guide 2 has an incident end face 22 for emitting light, and the incident end face 22 has a focusing groove 221. The light-emitting element 3 is disposed at the end of the light guide 2 and is disposed corresponding to the focusing groove 221.

[0030] In this utility model, the light emitted by the light-emitting element 3 (e.g., LED lamp bead 31) directly illuminates the light-concentrating groove 221 at the end of the light guide 2. The shape of the light-concentrating groove 221 (e.g., concave spherical or conical surface) can converge these dispersed light rays, making the light enter the interior of the light guide 2 more concentratedly. The light guide 2 is usually made of transparent or semi-transparent material, which can effectively conduct light. The light propagates forward in the interior of the light guide 2 by total internal reflection and is distributed along the length of the light guide 2. The outer side of the light guide 2 is provided with a light-emitting surface 21. During the propagation of light inside the light guide 2, some light rays will be emitted from the light-emitting surface 21. The design of the emission surface can be smooth or have a certain texture to achieve different light distribution effects. The light rays emitted from the light-emitting surface 21 finally reach the opening of the mounting groove 11 and are emitted outward from the opening to form a visible light band. The design of the focusing groove 221 can effectively concentrate light, so that the light emitted by the light-emitting element 3 enters the light guide 2 more concentratedly, thereby improving the utilization rate of light and enhancing the brightness of the light guide 2. The focusing groove 221 can guide the light into the light guide 2 evenly, making the distribution of light in the light guide 2 more uniform and avoiding local over-brightness or under-brightness. By directly setting the light-emitting element 3 at the end of the light guide 2 and corresponding to the focusing groove 221, the structural design is simplified, the loss of light during the propagation process is reduced, and it is also easy to install and maintain.

[0031] The housing 1 has a mounting groove 11 for accommodating the light guide 2. The size of the mounting groove 11 is adapted to the light guide 2 to ensure that the light guide 2 can be stably installed in the housing 1, and the light-emitting surface 21 is exposed at the opening of the mounting groove 11 so that light can be emitted from the light guide 2. The light guide 2 is disposed in the mounting groove 11, and its end has an incident end face 22 for light to enter. The incident end face 22 has a focusing groove 221. The design of the focusing groove 221 can effectively concentrate the light emitted by the light-emitting element 3, so that the light enters the light guide 2 more concentratedly. This focusing design can improve the utilization rate of light, enhance the brightness of the light guide 2, and also help to achieve a more uniform light distribution. The light-emitting element 3 is disposed at the end of the light guide 2 and corresponds to the focusing groove 221. The light emitted by the light-emitting element 3 directly illuminates the focusing groove 221. Through the focusing effect of the focusing groove 221, the light can enter the light guide 2 more efficiently. This design not only improves the incident efficiency of light but also reduces the scattering and loss of light during the incident process. In one embodiment, the light guide 2 is made of high-transparency plastic material, and 0.03% light diffusing agent is added to the high-transparency plastic. The high-transparency plastic material has high light transmittance and can efficiently conduct light, ensuring that the light loss is small during the propagation process in the light guide 2. The role of the light diffusing agent is to cause multiple refractions, reflections, and scattering of light during propagation through its different refractive index compared with the substrate, thereby achieving uniform light diffusion.

[0032] In one embodiment, the wall of the focusing groove 221 is a concave spherical surface. The concave spherical surface design can more effectively converge light, so that the light emitted by the light-emitting element 3 is uniformly focused before entering the light guide 2, thereby further improving the incident efficiency of light and the overall brightness of the light guide 2, while ensuring the uniform distribution of light within the light guide 2, enhancing the visual effect and user experience of the audio equipment.

[0033] Furthermore, in one embodiment, the radius of curvature of the concave spherical surface is R, where 5mm ≤ R ≤ 10mm. By precisely controlling the radius of curvature of the concave spherical surface, light can be converged more efficiently, ensuring that the light emitted by the light-emitting element 3 is uniformly focused before entering the light guide 2, thereby further improving the incident light efficiency and the overall brightness of the light guide 2, while ensuring the uniform distribution of light within the light guide 2, significantly enhancing the visual effect and user experience of the audio equipment. In another embodiment, the radius of curvature of the concave spherical surface is preferably set to 8.3mm, at which point the incident light efficiency and the overall brightness of the light guide 2 are even better.

[0034] Please see Figure 6In one embodiment, the light-emitting element 3 includes an LED bead 31 and a main board 32. The LED bead 31 is electrically connected to the main board 32. The LED bead 31 is positioned corresponding to the focusing groove 221, and the main board 32 is located on the side of the LED bead 31 facing away from the light guide 2. The LED bead 31 serves as a light source, emitting light. Its position corresponds to the focusing groove 221 of the light guide 2, ensuring that the light can directly illuminate the focusing groove 221. The LED bead 31 is electrically connected to the main board 32, which is located on the side of the LED bead 31 facing away from the light guide 2 and is used to control the light-emitting state of the LED bead 31.

[0035] Please see Figure 6 In one embodiment, the incident end face 22 also has a reflective surface 222. In addition to the focusing groove 221, the incident end face 22 is also designed with a reflective surface 222. The function of the reflective surface 222 is to reflect the light emitted from the side of the LED bead 31 onto the motherboard 32, and then, through the reflection of the motherboard 32, to refocus the light into the focusing groove 221. Through the synergistic effect of the reflective surface 222 and the motherboard 32, the light focusing effect is further enhanced, improving the incident efficiency of the light and the overall brightness of the light guide 2. In another embodiment, the angle between the reflective surface 222 and the incident end face 22 is between 40° and 60°, preferably 53°. The angle range between the reflective surface 222 and the incident end face 22 is optimized to ensure that the light emitted from the side of the LED bead 31, after being reflected on the reflective surface 222, can be efficiently focused into the focusing groove 221. Within this angle range, the preferred angle is 53°. This angle can maximize the reflection efficiency and focusing effect of light, further improving the brightness and light uniformity of the light guide 2.

[0036] Please refer to the diagram. Figure 2 and Figure 3In one embodiment, the light guide structure 100 includes two light-emitting elements 3, and the light guide 2 includes two connected light guide segments 23. Each light guide segment 23 has an incident end face 22 away from the other light guide segment 23, and each incident end face 22 has a focusing groove 221. Each light-emitting element 3 is provided with a focusing groove 221. The light guide 2 is composed of two connected light guide segments 23, forming an L-shaped structure, which is suitable for scenarios where uniform light distribution is required at right-angle bends, such as the right-angle edge of audio equipment. The two light guide segments 23 smoothly transition at the connection point, ensuring that light can propagate smoothly between the two light guide segments 23. The light guide structure 100 includes two light-emitting elements 3, each light-emitting element 3 including an LED bead 31 and a main board 32. The LED bead 31 is electrically connected to the main board 32, and each light-emitting element 3 is provided with a focusing groove 221, ensuring that light can enter the light guide 2 efficiently. The two light-emitting elements 3 each emit light from their respective LED beads 31. A portion of this light directly illuminates the corresponding focusing groove 221, while the other portion is emitted from the side of the LED bead 31 and illuminates the reflective surface 222. The reflective surface 222 reflects this light onto the main board 32, which then gathers the reflected light back into the focusing groove 221, further enhancing the light-gathering effect. After propagating inside the light guide 2, the light is emitted from the light-emitting surface 21, forming a uniform and soft light band. By employing an L-shaped light guide 2 and a dual light-emitting element 3 design, the light guide structure 100 of this invention can further improve the incident light efficiency and the overall brightness of the light guide 2. Furthermore, the L-shaped light guide 2 design is particularly suitable for scenarios requiring uniform light distribution at right-angle bends.

[0037] To improve the uniformity of light propagation within the light guide 2, please refer to... Figure 3 In one embodiment, the light guide 2 is provided with a textured surface 24, the texture of which gradually intensifies from near the incident end face 22 to the junction of the two light guide segments 23. The textured surface 24 is disposed inside or on the surface of the light guide 2 to control the propagation and distribution of light within the light guide 2. The texture starts near the incident end face 22 and gradually intensifies towards the junction of the two light guide segments 23. This gradual design aims to better control the scattering and distribution of light, making the propagation of light within the light guide 2 more uniform. Near the incident end face 22, the texture is shallower, which reduces scattering loss when light enters the light guide 2, ensuring that more light can enter the light guide 2 efficiently; at the junction of the two light guide segments 23, the texture is heavier, which increases the scattering and reflection of light, making the distribution of light within the light guide 2 more uniform and avoiding localized overly bright or dark areas.

[0038] Furthermore, please refer to Figure 2 , Figures 7 to 10In one embodiment, the housing 1 includes an inner shell 12 and an outer shell 13 connected together, forming the mounting groove 11. The light guide 2 includes a positioning section 25, and the inner shell 12 includes a connecting section 121. The positioning section 25 has multiple positioning holes 251. The connecting section 121 has multiple positioning posts 121a on the side facing the light guide, and each positioning post 121a is inserted into a positioning hole 251. The connecting section 121 has a snap-fit ​​portion 121b on the side facing away from the light guide 2. The outer shell 13 has a hook 131, which snaps into the snap-fit ​​portion 121b. The housing 1 is composed of an inner shell 12 and an outer shell 13, which are connected and form the mounting groove 11. This split design facilitates assembly and disassembly, and can also better adapt to light guides 2 of different shapes and sizes. The mounting groove 11 is used to accommodate the light guide 2, ensuring that the light guide 2 can be securely embedded therein, and that the light-emitting surface 21 of the light guide 2 can be partially or completely exposed in the groove of the mounting groove 11 so that light can be emitted smoothly. The light guide 2 includes a positioning section 25, on which multiple positioning holes 251 are formed. The inner shell 12 includes a connecting section 121, on which multiple positioning posts 121a are formed on the side facing the light guide 2. Each positioning post 121a is inserted into a positioning hole 251. Through this insertion and engagement, the light guide 2 can be precisely fixed on the inner shell 12, ensuring that the light guide 2 will not shift during use. A snap-fit ​​portion 121b is formed on the side of the connecting section 121 facing away from the light guide 2. The outer shell 13 is provided with a hook 131, which snaps into the snap-fit ​​portion 121b. Through the snap-fit ​​engagement of the snap-fit ​​portion 121b and the hook 131, the inner shell 12 and the outer shell 13 can be stably connected together to form an integral structure. This snap-fit ​​design not only facilitates assembly but also ensures the stability of the shell 1 during use. Align the positioning section 25 of the light guide 2 with the connecting section 121 of the inner shell 12, align the positioning hole 251 on the light guide 2 with the positioning post 121a on the inner shell 12, insert the positioning post 121a into the positioning hole 251 to fix the light guide 2 to the inner shell 12, then align the snap-fit ​​portion 121b of the inner shell 12 with the hook 131 of the outer shell 13, and snap the hook 131 into the snap-fit ​​portion 121b to complete the connection between the inner shell 12 and the outer shell 13. Through the insertion and engagement of the positioning hole 251 and the positioning post 121a, the light guide 2 can be precisely fixed on the inner shell 12, ensuring that the light guide 2 will not shift during use, thereby ensuring stable light output; the inner shell 12 and the outer shell 13 can be firmly connected together through the snap-fit ​​engagement of the snap-fit ​​part 121b and the hook 131, forming an integral structure, which enhances the stability of the shell 1; the split design and snap-fit ​​structure make the assembly and disassembly of the shell 1 more convenient, facilitating production and maintenance.

[0039] Please see Figure 4In one embodiment, a positioning groove 26 is formed on the side of the light guide 2 facing the housing 13, and a positioning protrusion is formed on the side of the housing 13 facing the light guide 2. The positioning protrusion is confined within the positioning groove 26. The positioning groove 26 on the side of the light guide 2 facing the housing 13 matches the shape and size of the positioning protrusion on the housing 13. The positioning protrusion on the side of the housing 13 facing the light guide 2 matches the shape and size of the positioning groove 26 on the light guide 2. This confined positioning fit ensures that the light guide 2 is precisely fixed within the housing 13, preventing displacement during use. The fit between the positioning groove 26 and the positioning protrusion ensures the precise position of the light guide 2 within the housing 13, preventing displacement during installation and ensuring stable light output. This confined positioning fit also strengthens the connection between the light guide 2 and the housing 13, enhancing the stability of the entire light guide structure 100 and enabling it to better adapt to various operating environments.

[0040] Please see Figure 1 and Figure 2 In one embodiment, the outer shell 13 has a light-shielding portion 132, which is disposed corresponding to the incident end face 22 of the light guide 2; the light guide structure 100 also includes an iron mesh 4, which is connected to the inner shell 12. The main function of the light-shielding portion 132 is to prevent bright glare spots from appearing at the incident end face 22. In actual use, the light emitted by the light-emitting element 3 may form glaring bright spots at the incident end face 22, affecting the visual effect. The light-shielding portion 132 makes the light softer by blocking part of the light, avoiding the appearance of glare spots and improving the visual effect of the product. The main function of the iron mesh 4 is to prevent foreign objects from entering the product. During use, the audio equipment may be exposed to dust, debris, and other environments. The iron mesh 4 can effectively block these foreign objects from entering, protecting the internal components from damage and extending the service life of the product.

[0041] This utility model also proposes an audio device, which includes a light guide structure 100. The specific structure of the light guide structure 100 is as described in the above embodiments. Since this audio device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The audio device of this utility model not only has a highly efficient light guiding function, but also improves the visual effect and user experience through optimized structural design, making it particularly suitable for audio devices that require high precision, high stability, and high reliability.

[0042] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A light guiding structure, characterized in that, include: A housing having a mounting groove; A light guide, disposed within the mounting groove, having an emitting surface for light to be emitted, the emitting surface being exposed at the opening of the mounting groove, and an incident end face for light to be incident, the incident end face having a focusing groove; and A light-emitting element is disposed at the end of the light guide and is arranged corresponding to the light-concentrating groove.

2. The light guide structure as described in claim 1, characterized in that, The wall of the focusing groove is a concave spherical surface.

3. The light guide structure as described in claim 2, characterized in that, The radius of curvature of the concave spherical surface is R, where 5mm ≤ R ≤ 10mm.

4. The light guide structure as described in any one of claims 1 to 3, characterized in that, The light-emitting element includes an LED chip and a main board. The LED chip is electrically connected to the main board and is positioned corresponding to the focusing groove. The main board is located on the side of the LED chip facing away from the light guide. The incident end face also has a reflective surface.

5. The light guide structure as described in any one of claims 1 to 3, characterized in that, The light guide structure includes two light-emitting elements, and the light guide includes two connected light guide segments. Each light guide segment has an incident end face away from the other light guide segment. Each incident end face has a focusing groove. Each light-emitting element is provided with a focusing groove corresponding to one of the focusing grooves.

6. The light guide structure as described in claim 5, characterized in that, The light guide is provided with a textured surface, and the texture of the textured surface gradually increases from near the incident end face to the connection between the two light guide segments.

7. The light guide structure as described in any one of claims 1 to 3, characterized in that, The housing includes an inner shell and an outer shell connected together, which enclose the mounting groove. The light guide includes a positioning section, and the inner shell includes a connecting section. The positioning section has multiple positioning holes, and the connecting section has multiple positioning posts on the side facing the light guide. Each positioning post is inserted into a positioning hole. The connecting section has a snap-fit ​​portion on the side facing away from the light guide, and the outer shell is provided with a hook, which snaps into the snap-fit ​​portion.

8. The light guide structure as described in claim 7, characterized in that, A positioning groove is formed on the side of the light guide facing the outer shell, and a positioning protrusion is formed on the side of the outer shell facing the light guide. The positioning protrusion is located within the positioning groove.

9. The light guide structure as described in claim 7, characterized in that, The outer casing has a light-shielding portion, which is disposed corresponding to the incident end face of the light guide; and / or The light guide structure also includes an iron mesh, which is connected to the inner shell.

10. An audio device, characterized in that, Includes the light guide structure as described in any one of claims 1 to 9.

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