CN216195609U

CN216195609U - Sound diffuser that inhales of curved surface shape

Info

Publication number: CN216195609U
Application number: CN202122676919.0U
Authority: CN
Inventors: 魏祥淇; 王加夏; 詹詒皓; 罗泽君
Original assignee: Shenzhen Db Acoustic Technology Co ltd
Current assignee: Shenzhen Db Acoustic Technology Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-05
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses a curved sound-absorbing diffuser which comprises a diffuser body, a sound-absorbing layer and a substrate, wherein a closed cavity is formed between the diffuser body and the substrate, and the sound-absorbing layer is filled in the closed cavity; wherein, the diffusion body has packing surface and diffusion surface, base plate and sound absorbing layer set gradually in the packing surface, be equipped with a plurality of beads on the diffusion surface, the bead is the wavy form setting of undulation along its length direction, adjacent two form between the bead and inhale the sound passageway, make sound can inhale the sound passageway and reflect and the diffuse reflection.

Description

Sound diffuser that inhales of curved surface shape

Technical Field

The utility model relates to the technical field of acoustic material structures, in particular to a curved sound-absorbing diffuser.

Background

Sound makes a round trip to reflect the stack between indoor wall, can form the standing wave, leads to reverberation time overlength, and sound is muddy, influences the sound quality, and especially the sound wave is through smooth surface reflection back, and all sonic energy will all follow same direction reflection, makes indoor reverberation time extension, and sound can not dissipate for a long time to the definition that leads to indoor sound is not enough, is difficult to use.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sound absorption diffuser in a curved surface shape, which can change sound diffusion effect and sound absorption effect on different frequency bands through a plurality of convex edges arranged in a wavy shape, thereby achieving more balanced sound effect.

The utility model provides a curved sound absorption diffuser which comprises a diffuser body, a sound absorption layer and a substrate, wherein a closed cavity is formed between the diffuser body and the substrate, and the sound absorption layer is filled in the closed cavity;

wherein, the diffusion body has packing surface and diffusion surface, base plate and sound absorbing layer set gradually in the packing surface, be equipped with a plurality of beads on the diffusion surface, the bead is the wavy form setting of undulation along its length direction, adjacent two form between the bead and inhale the sound passageway, make sound can inhale the sound passageway and reflect and the diffuse reflection.

In the diffuser according to an embodiment of the present invention, the diffusing surface is provided with a plurality of curved surface structures in a wave shape having a concave-convex shape, and the plurality of ribs are provided on the curved surface structures.

In the diffuser according to an embodiment of the present invention, the curved surface structure has a rhombus shape.

In the diffuser according to an embodiment of the present invention, the rib has a planar structure at a junction of each of the curved structures.

In the diffuser according to an embodiment of the present invention, each of the ribs is provided with a plurality of hole structures.

In the diffuser of an embodiment of the present invention, the hole structures have a rhomboid shape, and a plurality of the hole structures form a plurality of parallelogram patterns.

In the diffuser according to an embodiment of the present invention, the plurality of ribs have the same thickness, and the interval between every two adjacent ribs is equal.

In the diffuser according to an embodiment of the present invention, the substrate is a polyester fiber sheet.

In the diffuser according to an embodiment of the present invention, the sound absorbing layer is made of sound absorbing cotton.

In the diffuser of an embodiment of the present invention, the diffuser body has a skirt surrounding the periphery of the diffuser body, and the skirt is provided with a mounting hole for fixing the diffuser.

The technical scheme provided by the embodiment of the application can have the following beneficial effects: the application designs a curved surface shape inhale sound diffuser, including the diffusion body, inhale sound layer and base plate, wherein, the diffusion body has filling surface and diffusion surface, base plate and sound layer set gradually in the filling surface, be equipped with a plurality of beads on the diffusion surface, the bead is the wave form setting of undulation along its length direction, form between two adjacent beads and inhale the sound passageway, make sound can reflect and the diffuse reflection inhaling the sound passageway, with the sound diffusion effect and the sound effect of inhaling of change to different frequency channels, thereby reach more balanced sound effect.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a diffuser provided in an embodiment of the present application;

FIG. 2 is a schematic view of the diffuser of FIG. 1 at another angle;

FIG. 3 is a schematic cross-sectional view of the diffuser of FIG. 1;

FIG. 4 is an exploded schematic view of the diffuser of FIG. 1;

FIG. 5 is a schematic structural view of the diffusion body of FIG. 1;

FIG. 6 is a schematic view of the diffuser body of FIG. 1 at another angle;

FIG. 7 is a schematic view of the structure of the sound-absorbing layer of FIG. 1;

fig. 8 is a schematic structural view of the substrate in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only, and it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description only, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

As shown in fig. 1 to 8, the present application provides a curved sound absorption diffuser, including diffusion body 10, sound absorbing layer 20 and base plate 30, wherein, form airtight cavity 12 between diffusion body 10 and the base plate 30, sound absorbing layer 20 fills in airtight cavity 12, make diffusion body 10, sound absorbing layer 30 and base plate 20 three constitute unified whole, sound can be absorbed by sound absorbing layer 30 through diffusion body 10, the manufacturing process of diffuser has been simplified, also can carry out deep processing to low frequency noise effectively simultaneously, make the user can enjoy better high frequency tone quality.

In this embodiment, diffusion body 10 has packing face and diffusion face, and base plate 30 and sound absorbing layer 20 set gradually in the packing face, and wherein, be equipped with a plurality of beads 11 on the diffusion face, bead 11 is the wave form setting along its length direction, forms between two adjacent beads 11 and inhales the sound passageway for sound can be being inhaled the sound passageway and is being reflected and diffuse reflection, also can form omnidirectional diffusion to sound simultaneously, and is both pleasing to the eye and practical.

After the technical scheme is adopted, the convex edges 11 are arranged on the diffusion surface in a wavy and undulating mode, so that the sound diffusion effect and the sound absorption effect of different frequency bands can be changed, a more balanced sound effect is achieved, and the sound diffusion device has good practicability and market popularization value. In addition, by changing the depth and width of the groove formed between the rib 11 and the rib 11, the diffusion effect on sounds of different frequency bands can be changed.

The diffuser with different structures has the advantage of effectively avoiding sound aggregation compared with the smoother surface of the traditional indoor building. When sound waves pass through a smooth surface, sound energy is reflected out at the same angle, and after the sound waves are reflected by the surfaces with different structures, the sound is scattered and reflected to different directions, the sound energy is uniformly scattered to all places in space and transmitted to human ears, a space feeling is subjectively generated, and the brightness of the sound is improved when the sound energy is applied to medium-high frequency diffusion.

In an alternative embodiment, the diffusion surface is provided with a plurality of curved structures in a concave-convex wavy shape, and the plurality of convex ribs are arranged on the curved structures at intervals. Wherein, the thickness of every curved surface structure keeps the same, and a plurality of beads are alternate arrangement to change the sound diffusion effect and the sound absorbing effect to different frequency channels, thereby reach more balanced sound effect.

In an alternative embodiment, the curved structures are diamond shaped.

Illustratively, the diffusion body 10 is a rectangular plate, and the upper surface of the diffusion body is provided with a plurality of wavy curved structures with concave-convex undulations, the curved structures are in the shape of a diamond, and the diffusion body 10 is filled with the substrate 30 and the sound absorption layer 20 which are regular in shape. When the cavities are formed between the diffusion body 10 and the sound absorption layer 20, the cavities may be refilled with sound absorption materials, and the sound absorption materials may be sound absorption cotton. In the present embodiment, the substrate 30 may be a polyester fiber sheet.

For example, after the diffuser is applied to buildings such as a recording studio, a viewing room or a miniature KTV room, when the sound source emits corresponding sound, part of low-frequency sound is transmitted to the diffuser in the form of sound waves, because the corrugated rib 11 is arranged on the diffuser, the sound can be gradually consumed in the sound absorption channel formed by the rib 11, the sound absorption effect is achieved, and the body is positioned in a user formed by assembling a plurality of diffusers, so that more high-frequency sound of the sound source can be heard, namely, the high-frequency sound can become clearer and the positioning of the user to the sound source is more accurate.

In an alternative embodiment, the diffusion body 10, the sound absorption layer 30 and the substrate 20 are connected to form an integrally formed structure, and in the manufacturing process, the diffusion body, the sound absorption layer 30 and the substrate can be integrally formed by injection molding through a mold design, so that precision errors caused by connection after independent manufacturing can be avoided, and the production and manufacturing process is simplified.

At the same time, spacers or reinforcing ribs may be provided between the diffuser body 10 and the substrate 20 to improve the overall structural strength of the diffuser.

It should be noted that the protruding rib 11 disposed on the surface of the diffusion body 10 is formed by an integral structure, so as to ensure the structural strength of the protruding rib 11, and at the same time, save the subsequent processing time and improve the production efficiency.

In an alternative embodiment, the rib 11 is a planar structure at the junction of each curved structure.

In an alternative embodiment, each rib 11 is provided with a plurality of hole structures 111, so that sound can pass through the hole structures 111 and enter the sound absorption layer 20 to be absorbed.

In an alternative embodiment, the aperture structures 111 are diamond shaped and the plurality of aperture structures 111 form a plurality of parallelogram patterns. Wherein, by changing the area and number of the hole structures 111, and matching with the sound absorption layer 20 and the substrate 30, a small amount of sound can be absorbed, thereby achieving more uniform sound effect

In an alternative embodiment, the ribs 11 have the same thickness, and the interval between every two adjacent ribs 11 is equal.

In an alternative embodiment, the substrate 30 is a polyester fiber board.

In an alternative embodiment, the sound absorbing layer 20 is sound absorbing cotton.

In an alternative embodiment, the diffuser body 10 has a skirt surrounding the periphery of the diffuser body, the skirt being provided with mounting holes for fixing the diffuser.

In an alternative embodiment, the diffuser body 10 is made of a material with a low sound absorption coefficient, which may increase the sound diffusing effect.

In an alternative embodiment of the method according to the utility model,

after the technical scheme is adopted, the curved surface shape is adopted, and the plurality of convex edges 11 which are wavy along the length direction of the curved surface shape are arranged on the curved surface shape, so that compared with the traditional sound absorption plate or diffuser, the sound diffusion effect on different frequency bands can be changed, the sound absorption effect on the different frequency bands can also be changed by matching the sound absorption layer 20 and the base plate 30, the uniform and omnidirectional scattering of the sounds in the different frequency bands is realized, the more balanced sound effect is achieved, and the sound absorption plate has good practicability and market popularization value.

In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

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

Claims

1. The sound absorption diffuser in the shape of the curved surface is characterized by comprising a diffusion body, a sound absorption layer and a substrate, wherein a closed cavity is formed between the diffusion body and the substrate, and the sound absorption layer is filled in the closed cavity;

2. The diffuser of claim 1 wherein said diffusing surface has a plurality of curved structures in the form of concave-convex waves, and a plurality of said ribs are disposed on said curved structures.

3. The diffuser of claim 2 wherein the curved structures are diamond shaped.

4. A diffuser as set forth in claim 3 wherein said ribs are planar at the junction of each of said curved structures.

5. The diffuser of claim 1 wherein each of said ribs is provided with a plurality of hole formations.

6. The diffuser of claim 5 wherein said pore structures are diamond shaped and a plurality of said pore structures form a plurality of parallelogram patterns.

7. The diffuser of claim 1 wherein a plurality of said ribs are all of the same thickness and are equally spaced between each adjacent two of said ribs.

8. The diffuser of claim 1, wherein the substrate is a polyester fiber sheet.

9. The diffuser of claim 1, wherein the sound absorbing layer is sound absorbing cotton.

10. The diffuser of claim 1 wherein said diffuser body has a skirt around the periphery of said diffuser body, said skirt having mounting holes for diffuser attachment.