CN219261405U

CN219261405U - Acoustic diffusion plate

Info

Publication number: CN219261405U
Application number: CN202122432804.7U
Authority: CN
Inventors: 叶清锐
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2023-06-27
Anticipated expiration: 2031-10-09

Abstract

The utility model relates to an acoustic diffusion plate, which comprises a plate body and is characterized in that: the plate body is provided with a diffuser, and the diffuser comprises a first groove well, a second groove well, a third groove well, a fourth groove well and a fifth groove well which are arranged in depth according to the proportion of secondary remainder; the third groove well is folded towards the bottom space of the second groove well, and the fourth groove well is folded towards the bottom space of the fifth groove well; the third groove well is provided with a first guiding part at a corner for guiding sound to enter the bottom space, and correspondingly, the fourth groove well is provided with a second guiding part at the corner; compared with the prior art, the utility model has the advantages that: the third groove well and the fourth groove well are folded towards the bottom space, so that the depth of the diffuser is ensured to follow the proportion arrangement of secondary remainder, the thickness of the diffusion plate is reduced, and the space occupied by the diffusion plate is reduced; and set up first guiding part and second guiding part in the corner department of third slot well and fourth slot well and make sound can lead to get into the bottom space, avoided the sound directly reflected.

Description

Acoustic diffusion plate

Technical Field

The utility model relates to the technical field of building acoustics, in particular to an acoustic diffusion plate.

Background

In building acoustics, diffusion is indispensable, and a diffuser uniformly diffuses sound in multiple directions on the basis of not reducing indoor acoustic energy, so that the space sense of the sound is increased, the reverberation time is reduced, the definition is increased, standing waves are reduced, when the traditional diffuser diffuses low frequency, the diffuser is required to have great depth, occupies great indoor space, and increases the manufacturing and transportation cost; for this reason, a chinese patent No. zl201821756835.X, folding well full frequency acoustic diffuser, discloses a diffuser, which includes a diffusion main body, an upper end cover and a lower end cover, wherein the diffusion main body is a cuboid, the upper end cover is covered at the upper end of the diffusion main body, the lower end cover is covered at the lower end of the diffusion main body, the front of the diffusion main body is provided with a first diffusion groove well, a second diffusion groove well, a third diffusion groove well and a fourth diffusion groove well, and the first diffusion groove well, the second diffusion groove well, the third diffusion groove well and the fourth diffusion groove well are arranged according to a secondary remainder depth ratio; although the depth of the diffuser is reduced by folding the groove well, in practical use, as the turning part of the groove well is right-angled, part of sound can be directly reflected and can not turn, so that the diffusion effect of the diffuser is rigid; for this reason, further improvements are needed in the art.

Disclosure of Invention

The present utility model is directed to providing an acoustic diffuser plate that can prevent sound from being directly reflected in a folding groove well.

The technical scheme adopted for solving the technical problems is as follows: this acoustic diffusion board, including the plate body, its characterized in that: the plate body is provided with a diffuser for diffusing sound, and the diffuser comprises a first groove well, a second groove well, a third groove well, a fourth groove well and a fifth groove well, wherein the depths of the first groove well, the second groove well, the third groove well, the fourth groove well and the fifth groove well are arranged according to the proportion of secondary remainder; the third groove well is folded towards the bottom space of the second groove well, and the fourth groove well is folded towards the bottom space of the fifth groove well; the third well is provided with a first guide portion for guiding sound into the bottom space at a corner, and correspondingly, the fourth well is provided with a second guide portion at a corner.

As an improvement, the first guide part and the second guide part are circular arc-shaped guide plates.

As an improvement, the first guide part and the second guide part are straight-face guide plates which are obliquely arranged.

As an improvement, the first groove well, the second groove well, the third groove well, the fourth groove well, and the fifth groove well are disposed parallel to each other.

In order to reflect the sound while diffusing the sound, the plate body is further provided with a reflecting plate for reflecting the sound.

As an improvement, the reflecting plate comprises at least one triangular reflecting surface. The triangular reflecting surface can better scatter sound and reflect the sound more uniformly.

In order to better diffuse sound, as an improvement, the plate body is provided with two groups of diffusers which are symmetrically arranged on two sides of the reflecting plate.

Compared with the prior art, the utility model has the advantages that: folding the third groove well with deeper depth to the bottom space of the second groove well and folding the fourth groove well to the fifth groove well, thereby ensuring that the depth of the diffuser follows the proportion arrangement of secondary remainder, reducing the thickness of the whole diffusion plate and reducing the space occupied by the diffusion plate; and set up first guiding part and second guiding part in the corner of third slot well and fourth slot well and make sound can lead to get into the bottom space, avoided the sound directly reflected, and simple structure easily carries out.

Drawings

FIG. 1 is a schematic view of an overall structure of an acoustic diffuser plate according to an embodiment of the present utility model;

fig. 2 is a partial cross-sectional view of fig. 1 in an embodiment of the utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1-2, is a preferred embodiment of the present utility model. The acoustic diffusion plate of the embodiment comprises a plate body 1, a diffuser 2 and a reflecting plate 3; in this embodiment, taking a fifth-order diffuser 2 as an example, the diffuser 2 is disposed on the plate body 1 and is used for diffusing sound, two groups of diffusers 2 are symmetrically disposed on two sides of the reflecting plate 3, and the diffusers 2 include a first slot well 21, a second slot well 22, a third slot well 23, a fourth slot well 24 and a fifth slot well 25, which are arranged in depth according to the proportion of the secondary remainder and are disposed in parallel with each other; the third well 23 is folded toward the bottom space of the second well 22, and the fourth well 24 is folded toward the bottom space of the fifth well 25; the third well 23 is provided with a first guide portion 231 for guiding sound into the bottom space at a corner, correspondingly, the fourth well 24 is provided with a second guide portion 241 at a corner, and the first guide portion 231 and the second guide portion 241 may be circular arc guide plates or straight guide plates arranged obliquely, in this embodiment, circular arc guide plates are taken as an example; the plate body 1 is further provided with a reflection plate 3 for reflecting sound, and the reflection plate 3 is provided with a plurality of triangular reflection surfaces 31. Wherein, set up the reflection board 3 on plate body 1 and can give consideration to and reflect the sound, and the reflecting surface of triangle can better break up the sound to it is more even to reflect the sound.

In summary, the use process of the acoustic diffusion plate is as follows: the acoustic diffusion plate is arranged on the wall surface or the ceiling of a room, and when sound is transmitted to the acoustic diffusion plate, part of the sound is diffused by the diffusion body, and part of the sound is reflected to other spaces in the room by the reflection body.

Claims

1. An acoustic diffuser plate comprising a plate body (1), characterized in that: a diffuser (2) for diffusing sound is arranged on the plate body (1), and the diffuser (2) comprises a first groove well (21), a second groove well (22), a third groove well (23), a fourth groove well (24) and a fifth groove well (25) which are arranged in depth according to the proportion of secondary remainder; the third well (23) is folded towards the bottom space of the second well (22), and the fourth well (24) is folded towards the bottom space of the fifth well (25); the third well (23) is provided with a first guide (231) at the corner for guiding sound into the bottom space, and correspondingly the fourth well (24) is provided with a second guide (241) at the corner.

2. The acoustic diffuser plate of claim 1, wherein: the first guide part (231) and the second guide part (241) are arc-shaped guide plates.

3. The acoustic diffuser plate of claim 1, wherein: the first guide part (231) and the second guide part (241) are straight-face guide plates which are obliquely arranged.

4. The acoustic diffuser plate of claim 1, wherein: the first groove well (21), the second groove well (22), the third groove well (23), the fourth groove well (24) and the fifth groove well (25) are arranged in parallel.

5. The acoustic diffuser plate of any one of claims 1-4, wherein: the plate body (1) is also provided with a reflecting plate (3) for reflecting sound.

6. The acoustic diffuser plate of claim 5, wherein: the reflector plate (3) comprises at least one triangular reflecting surface (31).

7. The acoustic diffuser plate of claim 5, wherein: two groups of diffusers (2) are arranged on the plate body (1), and the two groups of diffusers (2) are symmetrically arranged on two sides of the reflecting plate (3).