Diffusers, light-emitting components, speakers, and vehicles

Abstract

This application relates to a diffuser plate, a light-emitting component, a speaker, and a vehicle. The diffuser plate includes a diffuser plate body and has at least one through-hole for sound guidance. The wall of the sound guidance hole forms a horn structure. By adopting the above technical solution, a horn structure is provided on the light-guiding diffuser plate to improve acoustic performance. In addition, the diffuser plate can guide light, enabling it to simultaneously achieve good acoustic performance and optical effects.

Description

Technical Field

[0001] This application relates to the field of loudspeaker technology, and more particularly to a diffuser plate, a light-emitting component, a loudspeaker, and a vehicle. Background Technology

[0002] Currently, in related technologies, the diffuser plate of a light-emitting speaker can be used to guide light, but the diffuser plate is not designed for acoustics, which causes the diffuser plate to affect the propagation of sound waves and reduce acoustic performance. Therefore, it is necessary to improve the existing diffuser plate to enhance the acoustic performance of the speaker.

[0003] Therefore, a technical solution is needed to address the above problems. Utility Model Content

[0004] This application provides a diffuser, a light-emitting component, a speaker, and a vehicle. The diffuser improves the acoustic performance of the speaker and simultaneously provides good lighting effects, thereby at least partially solving the aforementioned technical problems.

[0005] To achieve the above objectives, a first aspect of this application provides a diffuser plate configured for guiding light, comprising:

[0006] The diffuser plate body has at least one through-hole, and the hole wall of the through-hole forms a horn structure; the horn structure includes a sound inlet and a sound outlet, and its diameter increases from the sound inlet to the sound outlet. The sound inlet is used to receive the sound emitted by the sound-emitting body so that the sound passes through the horn structure and is emitted from the sound outlet.

[0007] In some embodiments, the sound guide hole is a tapered hole with one end having a larger diameter than the other. The end with the smaller diameter is the sound inlet, and the end with the larger diameter is the sound outlet.

[0008] In some embodiments, the horn angle of the horn structure is 20° to 30°.

[0009] In some embodiments, the diffuser plate is configured to have a light transmittance of at least 30%.

[0010] A second aspect of this application provides a light-emitting component, including the aforementioned diffuser plate.

[0011] In some embodiments, a light-emitting element is included, which is disposed on one side of the diffuser plate and away from the wall of the sound guide hole, with the light-emitting side of the light-emitting element facing the diffuser plate.

[0012] In some embodiments, the light-emitting element is annular and is disposed along the outer periphery of the sound guide hole on the diffuser plate body.

[0013] In some embodiments, a first light-diffusing element is also included, wherein the light-emitting element and the first light-diffusing element are respectively disposed on opposite sides of the diffuser plate.

[0014] In some embodiments, the first diffuser includes an annular diffuser portion and a light guide portion. The diffuser portion is an annular and transparent structure and is disposed along the outer periphery of the sound guide hole; and / or, the light guide portion is a transparent hollow structure and is disposed in the middle of the diffuser portion, and the light guide portion is used to emit at least a portion of the light from the diffuser portion along the light guide portion.

[0015] In some embodiments, an annular light-shielding member is provided on the side of the diffuser opposite to the diffuser plate to block at least part of the light from escaping from the diffuser.

[0016] In some embodiments, an annular seal is included, wherein the light-shielding member is provided on the side opposite to the light-diffusing portion, and the seal and the light-diffusing portion are provided on opposite sides of the light-shielding member, and the seal is used for sealing with the vehicle body during assembly.

[0017] In some embodiments, the light-emitting element is disposed on the side of the diffuser plate with a smaller aperture of the sound-guiding hole, and the first light-diffusing element is disposed on the side of the diffuser plate with a larger aperture of the sound-guiding hole.

[0018] In some embodiments, a second light-diffusing element is provided between the light-emitting element and the diffuser plate. The second light-diffusing element has a U-shaped cross-section, covers the light-emitting side of the light-emitting element, and the inner sidewall of the second light-diffusing element is spaced apart from the light-emitting side of the light-emitting element.

[0019] In some embodiments, the second scattering element and the diffuser plate are at least partially structurally spaced apart.

[0020] In some embodiments, the diffuser plate has a protruding ring that is at least partially embedded in the second diffuser, the protruding ring being embedded in the second diffuser on the side near the horn structure.

[0021] In some embodiments, a mounting bracket is included, which is configured to mount the light-emitting element and the diffuser plate.

[0022] In some embodiments, the mounting bracket includes a first cavity and a second cavity mounted on the first cavity;

[0023] The first cavity has a U-shaped cross-section and a light-emitting element is installed inside it. The diffuser plate covers the U-shaped opening of the first cavity and abuts against the cavity wall of the second cavity on the side away from the sound guide hole.

[0024] In some embodiments, a second diffuser with a U-shaped cross-section is included, which is installed within the first cavity and covers the light-emitting side of the light-emitting element.

[0025] In some embodiments, a first light-diffusing element and a light-shielding element are included, wherein the first light-diffusing element and the light-shielding element are stacked sequentially on the diffuser plate, and one side of the first light-diffusing element and the light-shielding element respectively abuts against the cavity wall of the second cavity segment.

[0026] In some embodiments, the mounting bracket is provided with a third cavity, which is located inside the first cavity and is used to accommodate the sound-emitting body.

[0027] A third aspect of this application provides a loudspeaker including the aforementioned light-emitting component.

[0028] In some embodiments, a sound-emitting element is included, which is mounted on the mounting bracket of the light-emitting element and is installed in conjunction with the horn structure.

[0029] A fourth aspect of this application provides a vehicle including the aforementioned speaker.

[0030] In this embodiment of the application, by providing a horn structure on the light-guiding diffuser plate, the horn structure can improve the acoustic performance of the sound passing through it. In addition, the diffuser plate can guide light, so that the diffuser plate can simultaneously meet the requirements of good acoustic performance and optical effect.

[0031] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0034] Figure 1 This is a cross-sectional view of a loudspeaker provided in an exemplary embodiment of this application;

[0035] Figure 2 This is another cross-sectional view of a loudspeaker provided in an exemplary embodiment of this application;

[0036] Figure 3 This is a test diagram of the acoustic performance of the horn structure of the diffuser provided in an exemplary embodiment of this application;

[0037] Figure 4 This is a test diagram of the acoustic performance of the horn structure of the diffuser provided in an exemplary embodiment of this application;

[0038] Figure 5 This is a schematic diagram of the horn angle of the horn structure of the diffuser plate provided in an exemplary embodiment of this application;

[0039] Figure 6 This is a cross-sectional view of a speaker in an existing design.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1-Diffuser plate body, 11-Sound guide hole, 12-Horn structure, 121-Sound inlet, 122-Sound outlet, 13-Protruding ring;

[0042] 2-Light-emitting components;

[0043] 3-First diffuser, 31-Diffuser section, 311-Mounting groove, 32-Light guide section;

[0044] 4-Second diffuser, 41-Annular groove;

[0045] 5-Light-shielding components;

[0046] 6-Seals;

[0047] 7-Mounting bracket, 71-First cavity section, 711-Inner ring section, 712-Outer ring section, 713-Bottom ring surface, 72-Second cavity section, 73-Third cavity section;

[0048] 8-Sound-generating body, 81-Magnetic circuit system, 82-Vibration system, 821-Diaphragm. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0050] In a first aspect, this application provides a diffusion plate; please refer to [reference needed]. Figure 1 and Figure 2The diffuser plate is configured for guiding light and includes a diffuser plate body 1 with at least one through-hole 11. The wall of the through-hole 11 forms a horn structure 12, which includes an inlet 121 and an outlet 122. The diameter of the inlet increases from the inlet 121 to the outlet 122, with the diameter gradually increasing. The inlet 121 receives sound emitted by a sound source, allowing the sound to pass through the horn structure 12 and be emitted from the outlet 122. The diffuser plate is configured for guiding light and is a light diffuser plate used to uniformly scatter and soften light, eliminating glare and eye strain. It can transform light emitted from point or line light sources into a surface light source with uniform brightness and no obvious bright spots or dark areas. When light enters the light diffuser plate, it encounters special structures inside or on the surface of the plate (such as microbeads, microprisms, etched textures, added diffusion particles, etc.) or the inherent properties of the material itself. These structures or particles continuously refract, reflect, and scatter the light, thereby disrupting its original propagation direction and causing it to diffuse in all directions. Ultimately, this results in the light being transmitted evenly and softly from the plate surface, forming a large-area luminous surface without strong contrast between light and dark. The horn structure 12 is a device that utilizes the principle of acoustic impedance matching to enhance sound propagation efficiency, achieving more effective radiation of sound energy. It is typically a cavity structure with a narrow throat and a gradually widening opening. The horn structure 12 has a sound inlet 121 equipped with a sound generator 8. The sound emitted by the sound generator 8 enters through the sound inlet 121. Since the sound inlet 121 is smaller than the sound outlet 122, it has a higher acoustic impedance. The acoustic impedance gradually decreases from the sound inlet 121 to the sound outlet 122. The gradual impedance transformation allows the sound energy to be transmitted into free space efficiently and with low loss, thereby improving the acoustic performance.

[0051] It is understood that the diffuser plate body 1 is provided with at least one sound guide hole 11, the number of which depends on the configuration of the loudspeaker. For example, one sound guide hole 11 is provided, the size of which is at least able to accommodate the sound emitter 8. The hole wall of the sound guide hole 11 forms a horn structure 12, relative to... Figure 6 The existing design of the diffuser plate in the design facilitates the propagation of sound.

[0052] In some embodiments, the sound guide hole 11 is a conical hole with one end larger than the other. The end with the smaller diameter is the sound inlet 121, and the end with the larger diameter is the sound outlet 122. It can be understood that the horn structure 12 is conical, and its horn angle is the taper of the sound guide hole 11; in other words, the horn angle is the angle between the wall of the sound guide hole 11 and the axis of the cone. Compared to existing technologies that do not acoustically design light diffusion elements, this conical horn structure 12 on the diffuser plate can reduce high-frequency sound attenuation and improve light refraction, enabling the diffuser plate to simultaneously achieve good acoustic performance and optical effects. The light refracted by the conical horn structure 12 is emitted from the conical surface of the conical hole, thus enhancing the optical effect.

[0053] In some embodiments, the horn angle of the horn structure 12 is 20° to 30°. By using a diffuser plate set at this horn angle, optical refraction effects can be achieved without affecting the frequency response curve of the tweeter, minimizing high-frequency radiation attenuation and effectively improving the tweeter audio performance. It can be understood that the core of designing the tweeter horn angle (profile) lies in selecting a suitable basic profile (exponential, hyperbolic / CD) to meet sound quality or directivity requirements. Then, through detailed acoustic calculations, simulations, and tests, the profile curve and mouth shape are precisely optimized to ultimately achieve the required directivity coverage angle, frequency response, efficiency, and distortion performance. Therefore, the horn angle of a conical tweeter horn is crucial. Please refer to... Figure 3 and Figure 5 Through theoretical design and experimental testing, it was determined that the optimal horn angle for the diffuser plate is 20° to 30°, which satisfies the acoustic performance requirements for reducing high-frequency attenuation. Figure 3 and Figure 4 In the mid-to-high frequency range, the 20° horn design corresponds to the lowest high-frequency attenuation. At 25°±5°, optical refraction is also optimal, with no ghosting or shadows. However, when the horn angle exceeds 30°, high-frequency attenuation is significant, reducing high-frequency acoustic performance, and the optical effect is also poor. Figure 5 The diagram illustrates multiple horn angles. Sound is emitted from the diaphragm 821 and diffuses in all directions. However, the diffuser plate installed around the diaphragm 821 affects the direction of sound emission, easily creating resonance and causing attenuation. Furthermore, when the horn angle of the conical horn structure 12 is less than 20°, the refracted light is reflected within the horn structure 12 due to the small cone angle, resulting in poor light refraction and preventing light from being effectively refracted from the cone surface and exiting from the larger end of the horn structure 12. Therefore, designing the horn angle of the diffuser plate to be between 20° and 30°, exemplarily including 20°, 22°, 24°, 26°, 28°, and 30°, can significantly reduce high-frequency radiation attenuation, improve the sound cavity's radiated sound waves, solve the problem of excessive high-frequency sound wave attenuation, improve audio quality, and enhance optical performance, eliminating scattering, ghosting, and shadows, thus improving the user experience.

[0054] Please see Figures 3-6 , Figure 6 The exhibition showcased existing light-emitting loudspeakers, and their acoustic tests were conducted in [location missing]. Figure 3 and Figure 4 The middle section shows the performance curve of the "original solution". Figure 3 The acoustic performance of the horn was demonstrated at horn angles of 10°, 20°, 30°, 45°, 60°, and 75°. Figure 4 The acoustic performance of horn angles of 10°, 15°, 20°, 25°, 30°, 35°, 40°, and 45° was demonstrated, with a focus on the acoustic performance of horn angles between 10° and 45°, using the existing loudspeaker structure ( Figure 6 As shown in the figure, setting the horn structure 12 of the loudspeaker with a conical through hole to be greater than 30° or less than 20° does not achieve good acoustic performance. Therefore, the horn angle of the diffuser plate is designed to be 20° to 30°.

[0055] In some embodiments, the light transmittance of the diffuser plate is at least 30%. It is understood that in the prior art, the use of a transparent material for the diaphragm to guide light increases its weight, thus affecting the acoustic characteristics of the speaker. By making the diffuser plate a transparent structure, dynamic light efficiency can be improved, the visual effect is better, and the acoustic frequency response is not affected. Light transmittance represents the ability of light to pass through a medium; it is the percentage of luminous flux passing through a transparent or translucent body relative to the incident luminous flux. The light transmittance of the diffuser plate is typically set to 30% or higher; for example, transmittance values ​​are 30%, 40%, 60%, etc. The diffuser plate can be made of transparent plastic.

[0056] In a second aspect, this application provides a light-emitting component including the aforementioned diffuser plate. Therefore, the light-emitting component according to the embodiments of this utility model also has the technical effects of the aforementioned diffuser plate.

[0057] In some implementations, please refer to Figure 1 and Figure 2The system includes a light-emitting element 2, which is disposed on one side of the diffuser plate and away from the wall of the sound guide hole 11. The light-emitting side of the light-emitting element 2 faces the diffuser plate. It can be understood that the light-emitting element 2 serves as a light source. Since the light-emitting side of the light-emitting element 2 faces the diffuser plate, the emitted light needs to enter the diffuser plate. Therefore, the light is emitted through the diffuser plate so that the light is evenly and softly transmitted from the surface of the diffuser plate, forming a large-area luminous surface without strong light-dark contrast. The light-emitting element 2 is equipped with LED beads that emit light towards the diffuser plate. The diffuser plate is annular, and the light-emitting element 2 is adapted to the diffuser plate. The placement of the light-emitting element 2 should not affect the propagation of sound. Therefore, the light-emitting element 2 can be arranged on the upper, lower, or outer side of the diffuser plate. In one example, the light-emitting element 2 is arranged on the lower side of the diffuser plate.

[0058] In some implementations, please refer to Figure 1 and Figure 2 The light-emitting element 2 is annular and is arranged along the outer periphery of the sound guide hole 11. It can be understood that the annular light-emitting element 2 provides light sources in more locations, thereby improving the lighting effect. The light-emitting element 2 is arranged along the outer periphery of the sound guide hole 11 on the diffuser plate body 1 so that it does not affect the sound propagation of the horn structure 12 on the wall of the sound guide hole 11. Typically, the light-emitting element 2 is arranged along the outer periphery of the sound guide hole 11 and is positioned below the diffuser plate body 1.

[0059] In some embodiments, a first diffuser 3 is also included, with the light-emitting element 2 and the first diffuser 3 respectively disposed on opposite sides of the diffuser plate. It can be understood that the first diffuser 3 is provided to improve the lighting effect. The light emitted by the light-emitting element 2 first enters the diffuser plate, then passes through the diffuser plate to the first diffuser 3. Both the first diffuser 3 and the diffuser plate emit light outwards, increasing the diffused area. The first diffuser 3 is made of transparent plastic and is typically mounted tightly against the diffuser plate. The light-emitting element 2 is disposed below the diffuser plate, and the first diffuser 3 is disposed above the diffuser plate.

[0060] In some embodiments, the first light-diffusing element 3 includes a light-diffusing portion 31 and a light-guiding portion 32. The light-diffusing portion 31 is configured as an annular and transparent structure and is disposed along the outer periphery of the sound guide hole 11. In some embodiments, the light guide portion 32 is configured as a transparent hollow structure and is disposed in the middle of the light-diffusing portion 31. The light guide portion 32 is used to emit at least a portion of the light from the light-diffusing portion 31 along the light guide portion 32. It can be understood that the first light-diffusing element 3 can emit light outward through the light-diffusing portion 31 and the light guide portion 32, and refract the light onto the light guide portion 32 through the light-diffusing portion 31 to improve the lighting effect and the light emission area. In addition, the light-diffusing portion 31 is disposed along the outer periphery of the sound guide hole 11 to avoid affecting the acoustic performance of the horn structure 12, and the hollow structure of the light guide portion 32 can transmit sound and create a better lighting atmosphere.

[0061] In some embodiments, an annular light-shielding member 5 is provided on the side of the light-diffusing part 31 opposite to the diffuser plate to block at least part of the light from escaping from the light-diffusing part 31. It is understood that the light-shielding member 5 is made of an opaque material and has a certain thickness to block light in a designated area, thereby creating a desired lighting effect, allowing light to escape through the unblocked portion. Specifically, both the light-shielding member 5 and the light-diffusing part 31 are annular. A mounting groove 311 for mounting the light-shielding plate is provided on the side of the light-diffusing part 31 away from the diffuser plate, and the light-shielding member 5 is mounted on the mounting groove 311. The mounting groove 311 is located at the outer edge of the light-diffusing part 31, so that at least part of the side of the light-diffusing part 31 opposite to the diffuser plate is not blocked by the light-shielding member 5. In other words, the diffuser plate and the light-shielding member 5 are located on opposite sides of the light-diffusing part 31.

[0062] In some embodiments, an annular seal 6 is included. The seal 6 and the light-diffusing portion 31 are disposed on opposite sides of the light-shielding member 5. The seal 6 is used for sealing during assembly with the vehicle body. That is, the annular seal 6 is provided on the side of the light-shielding member 5 opposite to the light-diffusing portion 31 for sealing during assembly with the vehicle body. It can be understood that the light-diffusing portion 31 and the seal 6 are disposed on opposite sides of the light-shielding member 5, and the seal 6 cooperates with the vehicle body to provide a seal. Specifically, the seal 6 is made of foam material. One side of the seal 6 is fitted to the top surface of the light-shielding member 5, and the width of its cross-section is exactly the same as the width of the cross-section of the light-diffusing portion 31.

[0063] In some embodiments, the light-emitting element 2 is disposed on the side of the diffuser plate with the smaller aperture of the sound-guiding hole 11, and the first light-diffusing element 3 is disposed on the side of the diffuser plate with the larger aperture of the sound-guiding hole 11. It can be understood that the diffuser plate is horn-shaped, and sound propagates from the side of the diffuser plate with the smaller aperture of the sound-guiding hole 11 towards the side with the larger aperture. Therefore, the side of the diffuser plate with the larger aperture of the sound-guiding hole 11 is used for audiovisual purposes. Thus, the light-emitting element 2 is disposed on the side of the diffuser plate with the smaller aperture of the sound-guiding hole 11 to facilitate the emission of light through the diffuser plate and the first light-diffusing element 3. The light-emitting element 2 and the first light-diffusing element 3 are annular, and their inner diameters are both larger than the diameters of adjacent sound-guiding holes 11 to avoid obstructing light or sound. Multiple light-emitting units (lamp) are evenly spaced on the light-emitting element 2 to provide light.

[0064] In some embodiments, a second light-diffusing element 4 is further provided between the light-emitting element 2 and the diffuser plate. The second light-diffusing element 4 has a U-shaped cross-section, covers the light-emitting side of the light-emitting element 2, and its inner wall is spaced apart from the light-emitting side of the light-emitting element 2. It can be understood that the U-shaped second light-diffusing element 4 collects the light emitted by the light-emitting element 2, thereby improving the uniformity of light transmission. The spaced-apart arrangement of the inner wall of the second light-diffusing element 4 with the light-emitting side of the light-emitting element 2 creates a light diffusion space, improving the uniformity of light transmission and preventing the light from being too bright or too dark. The width of the U-shaped opening of the second light-diffusing element 4 is greater than the width of the light-emitting element 2 to cover it. The shape of the second light-diffusing element 4 is adapted to the shape of the light-emitting element 2; for example, both the light-emitting element 2 and the second light-diffusing element 4 are annular.

[0065] In some embodiments, the second light-diffusing element 4 is at least partially spaced from the diffuser plate. It is understood that the alternating arrangement of the second light-diffusing element 4 and the diffuser plate further creates a light diffusion space between them, improving the uniformity of light transmission.

[0066] In some embodiments, the diffuser plate has a protruding ring 13 that is at least partially embedded in the second diffuser 4. The protruding ring 13 is embedded in the side of the second diffuser 4 near the horn structure 12. It can be understood that the protruding ring 13 on the diffuser plate is embedded in the second diffuser 4 to position and install the diffuser plate and the second diffuser 4. Furthermore, the protruding ring 13 is embedded in the side of the second diffuser 4 near the horn structure 12; in other words, the protruding ring 13 is embedded in the side of the second diffuser 4 near the inner ring surface. Specifically, the protruding ring 13 is disposed on the side of the diffuser plate near the second diffuser 4. The second diffuser 4 is annular, including a top surface near the diffuser plate, an inner ring surface inside the top surface, and an outer ring surface outside the top surface. The top surface of the diffuser plate near the inner ring surface has an annular groove 41, and the protruding ring 13 is configured to be embedded in the annular groove 41. The area formed by the protruding ring 13 and the surface of the diffuser plate near the second diffuser 4 can collect light emitted from the second diffuser 4.

[0067] In some embodiments, a mounting frame 7 is included, which is configured to mount the light-emitting element 2 and the diffuser plate. It is understood that the light-emitting element 2 and the diffuser plate are mounted on the mounting frame 7 to provide support for them, and the mounting frame 7 is made of an opaque material to limit the direction of light propagation emitted by the light-emitting element 2.

[0068] In some embodiments, the mounting frame 7 includes a first cavity segment 71 and a second cavity segment 72 disposed on the first cavity segment 71. The first cavity segment 71 has a U-shaped cross-section and a light-emitting element 2 is installed inside it. The diffuser plate covers the U-shaped opening of the first cavity segment 71, and the side away from the wall of the sound guide hole 11 abuts against the cavity wall of the second cavity segment 72. Both the first cavity segment 71 and the second cavity segment 72 are annular. The first cavity segment 71 includes an inner ring portion 711, an outer ring portion 712, and a bottom ring surface 713. The inner ring portion 711 and the outer ring portion 712 are respectively disposed on the inner and outer sides of the bottom ring surface 713 to form a U-shaped structure. The second cavity segment 72 is disposed on the outer ring portion 712 of the first cavity segment 71. It can be understood that the light-emitting element 2 is installed inside the first cavity segment 71 of the U-shape to restrict the direction of light transmission from the light-emitting element 2, allowing it to only emit light from the U-shaped opening. Furthermore, a diffuser plate covers the U-shaped opening of the first cavity segment 71, so that most of the light emitted from the light-emitting element 2 illuminates the diffuser plate, which then disperses the light. Specifically, the cross-sectional width of the diffuser plate is greater than the cross-sectional width of the U-shaped opening.

[0069] In some embodiments, a second diffuser 4 with a U-shaped cross-section is installed within the first cavity 71 and covers the light-emitting side of the light-emitting element 2. It can be understood that the second diffuser 4 within the first cavity 71 is used to improve the uniformity of the light emitted by the light-emitting element 2. The cross-sectional width of the U-shaped opening of the second diffuser 4 is greater than the cross-sectional width of the light-emitting element 2, so that the second diffuser 4 can accommodate the light-emitting element 2. The height of the second diffuser 4 is approximately the same as the depth of its U-shaped structure.

[0070] In some embodiments, the first light-diffusing element 3 and the light-shielding element 5 are stacked sequentially on the diffuser plate, with one side of each abutting against the cavity wall of the second cavity segment 72. It can be understood that the first light-diffusing element 3 and the light-shielding element 5 are stacked sequentially on the diffuser plate for support by the mounting bracket 7. One side of each of the first light-diffusing element 3 and the light-shielding element 5 abuts against the cavity wall of the second cavity segment 72 to limit their radial movement. Furthermore, the cavity wall of the second cavity segment 72 also blocks light from the first light-diffusing element 3, and the light-shielding element 5 abuts against the cavity wall of the second cavity segment 72, so that the mounting bracket 7 and the light-shielding element 5 cooperate to limit light emission.

[0071] In some embodiments, the mounting bracket 7 is provided with a third cavity 73, which is located inside the first cavity 71 and is used to mount the sound generator 8. It can be understood that the third cavity 73 is provided on the inner ring portion 711 of the first cavity 71, and the area of ​​the inner circumferential surface of the inner ring portion 711 is the third cavity 73. The third cavity 73 is a cylindrical shape with both ends open, and is used to mount the sound generator 8. The sound emitted by the sound generator 8 will not have its high-frequency frequencies significantly reduced due to the installation of the diffuser plate.

[0072] For the third aspect of this application, please refer to Figure 1 and Figure 2 A loudspeaker is provided, including the aforementioned light-emitting component. Since the loudspeaker has all the technical features of the light-emitting component, the loudspeaker according to the present invention also has all the technical effects of the aforementioned light-emitting component.

[0073] In some embodiments, a sound-emitting element 8 is included, which is mounted on the mounting bracket 7 of the light-emitting element 2 and is installed in conjunction with the horn structure 12. It can be understood that the sound emitted by the sound-emitting element 8, through the horn structure 12 it cooperates with, can greatly reduce the attenuation of high-frequency sounds, improve the audio effect, and at the same time improve the optical effect, without scattering light, ghosting, or shadows.

[0074] In a fourth aspect, this application provides a vehicle that includes the aforementioned speaker. Since the vehicle possesses all the technical features of the speaker, the vehicle according to the present invention also possesses all the technical effects of the aforementioned speaker.

[0075] The connectors and other components and operations of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0076] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0077] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0078] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0079] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A diffusion plate, characterized in that, Configured for light guiding, including: The diffuser plate body (1) is provided with at least one through-hole (11), and the hole wall of the through-hole (11) forms a horn structure (12); The horn structure includes a sound inlet and a sound outlet, with the aperture increasing from the sound inlet to the sound outlet. The sound inlet is used to receive the sound emitted by the sound-emitting body, so that the sound passes through the horn structure and is emitted from the sound outlet.

2. The diffuser plate according to claim 1, characterized in that, The sound guide hole (11) is a conical hole with one end larger than the other. The end with the smaller diameter is the sound inlet, and the end with the larger diameter is the sound outlet.

3. The diffuser plate according to claim 2, characterized in that, The horn angle of the horn structure (12) is 20° to 30°.

4. The diffuser plate according to claim 1, characterized in that, The light transmittance of the diffuser plate is at least 30%.

5. A light-emitting component, characterized in that, Includes the diffusion plate according to any one of claims 1-4.

6. The light-emitting component according to claim 5, characterized in that, Includes a light-emitting element (2), which is disposed on one side of the diffuser plate and away from the hole wall of the sound guide hole (11), with the light-emitting side of the light-emitting element (2) facing the diffuser plate.

7. The light-emitting component according to claim 6, characterized in that, The light-emitting element (2) is ring-shaped and is arranged along the outer periphery of the sound guide hole (11) on the diffuser plate body (1).

8. The light-emitting component according to claim 6, characterized in that, It also includes a first diffuser (3), wherein the light-emitting element (2) and the first diffuser (3) are respectively disposed on opposite sides of the diffuser plate.

9. The light-emitting component according to claim 8, characterized in that, The first light-diffusing element (3) includes a light-diffusing part (31) and a light-guiding part (32). The light-diffusing part (31) is configured as an annular and transparent structure and is disposed along the outer periphery of the sound guide hole (11); and / or, the light-guiding part (32) is configured as a transparent hollow structure and is disposed in the middle of the light-diffusing part (31). The light-guiding part (32) is used to emit at least a portion of the light from the light-diffusing part (31) along the light-guiding part (32).

10. The light-emitting component according to claim 9, characterized in that, The diffuser (31) has an annular light-shielding member (5) on the side opposite to the diffuser plate, which is used to block at least part of the light from escaping from the diffuser (31).

11. The light-emitting component according to claim 10, characterized in that, It includes an annular seal (6), which is disposed on both sides opposite to the light-diffusing part (31) of the light-shielding part (5), and the seal (6) is used to seal with the vehicle body during assembly.

12. The light-emitting component according to claim 8, characterized in that, The light-emitting element (2) is disposed on the side of the sound-guiding hole (11) of the diffuser plate with a smaller aperture, and the first light-diffusing element (3) is disposed on the side of the sound-guiding hole (11) of the diffuser plate with a larger aperture.

13. The light-emitting component according to claim 6, characterized in that, A second light-diffusing element (4) is provided between the light-emitting element (2) and the diffuser plate. The second light-diffusing element (4) has a U-shaped cross section and covers the light-emitting side of the light-emitting element (2). The inner wall of the second light-diffusing element (4) is spaced apart from the light-emitting side of the light-emitting element (2).

14. The light-emitting component according to claim 13, characterized in that, The second scattering element (4) is structurally spaced from the diffuser plate at least partially.

15. The light-emitting component according to claim 14, characterized in that, The diffuser plate is provided with a protruding ring (13) that is at least partially embedded in the second diffuser (4), and the protruding ring (13) is embedded in the second diffuser (4) on the side close to the horn structure (12).

16. The light-emitting component according to claim 6, characterized in that, Includes a mounting bracket (7) configured for mounting the light-emitting element (2) and the diffuser plate.

17. The light-emitting component according to claim 16, characterized in that, The mounting bracket (7) includes a first cavity (71) and a second cavity (72) mounted on the first cavity (71); The first cavity segment (71) has a U-shaped cross section and a light-emitting element (2) is installed inside it. The diffuser plate covers the U-shaped opening of the first cavity segment (71) and the side away from the sound guide hole (11) abuts against the cavity wall of the second cavity segment (72).

18. The light-emitting component according to claim 17, characterized in that, It includes a second diffuser (4) with a U-shaped cross section, which is installed in the first cavity (71) and covers the light-emitting side of the light-emitting element (2).

19. The light-emitting component according to claim 17, characterized in that, It includes a first light diffuser (3) and a light shield (5), which are stacked on the diffuser plate in sequence, and one side of the first light diffuser (3) and the light shield (5) respectively abuts against the cavity wall of the second cavity segment (72).

20. The light-emitting component according to claim 17, characterized in that, The mounting bracket (7) is provided with a third cavity section (73), which is located inside the first cavity section (71) and is used to accommodate the sound-generating body (8).

21. A loudspeaker, characterized in that, Includes the light-emitting component as described in any one of claims 5 to 20.

22. The loudspeaker according to claim 21, characterized in that, It includes a sound-emitting body (8), which is mounted on the mounting bracket (7) of the light-emitting element (2) and is installed in conjunction with the horn structure (12).

23. A vehicle, characterized in that, Includes the loudspeaker as described in any one of claims 21-22.

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