CN219909441U

CN219909441U - Broadband diffuser

Info

Publication number: CN219909441U
Application number: CN202223585826.8U
Authority: CN
Inventors: 何跃光
Original assignee: Guangzhou Winego Acoustic Materials Co ltd
Current assignee: Guangzhou Winego Acoustic Materials Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-10-27
Anticipated expiration: 2032-12-31

Abstract

The utility model relates to the technical field of diffusers, and discloses a broadband diffuser, which comprises a diffuser body, wherein the diffuser body specifically comprises a wooden outer frame, and a first groove, a second groove, a third groove, a fourth groove, a fifth groove, a sixth groove, a seventh groove and an eighth groove are formed in the wooden outer frame. The inside diffuser plate that all is provided with different degree of depth of recess, the diffuser plate degree of depth in the third recess is greater than the diffuser plate degree of depth in the fourth recess, the diffuser plate degree of depth in the fourth recess is greater than the diffuser plate degree of depth in the second recess. The diffusion plate diffuses high-frequency band sound energy sound through the grooves of different depths, and the diffusion body integrally diffuses low-frequency band sound energy sound, so that the diffusion plate diffuses sound energy sound waves of different frequencies, is a diffuser in the diffusion body, so that the sound diffusion is more uniform, the space sense of the sound is increased, and the fullness, the definition and the third dimension of the sound are improved.

Description

Broadband diffuser

Technical Field

The utility model relates to the technical field of diffusers, in particular to a broadband diffuser.

Background

In architectural acoustics, acoustic diffusion is indispensable, and on a wall surface or ceiling which is not subjected to diffusion treatment, repeated reflection sound and direct sound superposition phenomena can be formed in the vertical and horizontal directions, so that the indoor reverberation time is prolonged, the sound cannot be dissipated for a long time, and therefore the definition of the indoor sound is insufficient and the indoor sound is difficult to use.

Patent number CN203782919U discloses a plane diffuser, including bottom plate, two or more first reflecting plates and two or more second reflecting plates, the bottom plate has surface and interior bottom surface, the edge of second reflecting plate connect in the surface, and make adjacent second reflecting plate with all form the recess between the surface, all be equipped with in the recess first reflecting plate, first reflecting plate connects simultaneously in two lateral walls of adjacent second reflecting plate, just first reflecting plate with have the interval between the bottom plate, first reflecting plate in one of them recess is in two different planes at least with the first reflecting plate in other recesses. The planar diffuser can increase the space sense of sound, improve the definition of sound, meet the requirements of consumers to a great extent and has low cost.

The technical scheme can increase the space sense and definition of sound when in use, however, the technical scheme still has the following problems when in use: the sound wave is generally divided into three frequency bands of low, medium and high by us, and in the past, different sound diffusion is carried out by setting different acoustic materials in space, so that the construction difficulty is high, the work is complicated, and the cost is relatively high.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the broadband diffuser, so that the diffuser solves the problem of acoustic reflection of a plurality of frequency bands in one product, and greatly reduces the cost and the construction difficulty.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the broadband diffuser comprises a diffuser body, wherein the diffuser body comprises a wooden outer frame, a plurality of grooves are formed in the wooden outer frame, a plurality of low-frequency separators are fixedly arranged between the grooves, a first groove, a second groove, a third groove, a fourth groove, a fifth groove, a sixth groove, a seventh groove and an eighth groove are sequentially formed between the two low-frequency separators in the wooden outer frame, diffusion plates with different depths are arranged in the first groove, the second groove, the third groove, the fourth groove, the fifth groove, the sixth groove, the seventh groove and the eighth groove, diffusion plates with different depths are arranged in the grooves, the diffusion plate depth in the third groove is larger than the diffusion plate depth in the fourth groove, the diffusion plate depth in the fourth groove is larger than the diffusion plate depth in the second groove, the diffusion plate degree of depth in the second recess is greater than the diffusion plate degree of depth in the first recess, the diffusion plate degree of depth in the first recess is unanimous with the diffusion plate degree of depth of eighth recess, the diffusion plate degree of depth in the second recess is unanimous with the diffusion plate degree of depth in the seventh recess, the diffusion plate degree of depth in the third recess is unanimous with the diffusion plate degree of depth in the sixth recess, the diffuser body acts on the reflection of low frequency channel sound wave, the diffusion plate in the recess acts on the reflection of medium-high frequency channel sound wave, the diffusion of frequency band sound, the sound wave of this kind of diffuser diffusion of different frequency, make the diffusion of sound more even, the diffusion plate scatters the medium-high frequency channel sound energy through self different degree of depth recesses again, the diffuser body whole scattering low frequency channel sound energy, increase the spatial sense of sound, the plumpness of sound, definition and third dimension.

Preferably, the wooden outer frame is a flame retardant arrangement.

Preferably, the internal groove of the wooden outer frame is matched with the diffusion plate and the air nails, so that no nail holes exist, and the wooden outer frame is integral and attractive.

Preferably, the wood outer frame has a height of 1200mm, a width of 600mm and a thickness of 100mm.

Preferably, the inner groove of the wooden outer frame and the diffusion plate are of a composite structure.

Preferably, the diffusion plate is of a monolithic integral structure, and is not required to be spliced and integrally formed.

Compared with the prior art, the utility model has the following beneficial effects:

this kind of diffuser, by wooden frame, inside recess, low frequency baffle, diffuser plate combination for production efficiency, the tradition diffuser of the tattletale problem such as function singleness has been solved in a product to the combination, great reduction cost and the construction degree of difficulty.

Drawings

FIG. 1 is a schematic diagram of the assembly of the main structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the body of the present utility model;

in the figure: 1. a diffuser body; 2. a wooden outer frame; 3. a low frequency separator; 4. a diffusion plate; 5. a first groove; 6. a second groove; 7. a third groove; 8. a fourth groove; 9. a fifth groove; 10. a sixth groove; 11. a seventh groove; 12. eighth groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

The technical scheme of the utility model is further described below with reference to the attached drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present utility model are shown.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" of a second feature may include direct contact of the first and second features, it may also be included that the first and second features are not in direct contact but are in contact by additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1-2, a broadband diffuser includes a diffuser body 1, which is characterized in that: the diffuser body 1 specifically comprises a wooden outer frame 2, 8 grooves are arranged in the wooden outer frame 2, a plurality of low-frequency separators 3 are fixedly arranged between the grooves, a first groove 5, a second groove 6, a third groove 7, a fourth groove 8, a fifth groove 9, a sixth groove 10, a seventh groove 11 and an eighth groove 12 are sequentially formed between the two low-frequency separators 3 in the wooden outer frame 2, diffusion plates 4 with different depths are respectively arranged in the first groove 5, the second groove 6, the third groove 7, the fourth groove 8, the fifth groove 9, the sixth groove 10, the seventh groove 11 and the eighth groove 12, the diffusion plates in the first groove (5) are flat plates, and the depth is 6mm, the diffusion plate in the second groove (6) is 'wave-shaped' and the depth is 20mm, the diffusion plate in the third groove (7) is 'wave-shaped' and the depth is 60mm, the diffusion plate in the fourth groove (8) is 'wave-shaped' and the depth is 40mm, the diffusion plate in the fifth groove (9) is 'wave-shaped' and the depth is 40mm, the diffusion plate in the sixth groove (10) is 'wave-shaped' and the depth is 60mm, the diffusion plate in the seventh groove (11) is 'wave-shaped' and the depth is 20mm, the diffusion plate in the eighth groove (12) is flat plate, the depth is 6mm, the diffusion plate 4 depth in the third groove 7 is greater than the diffusion plate 4 depth in the fourth groove 8, the diffusion plate depth in the fourth groove 8 is greater than the diffusion plate 4 depth in the second groove 6, and the 4 depth in the second groove 6 is greater than the 4 depth in the first groove 5. The depth of the diffusion plate 4 in the first groove 5 is consistent with the depth of the diffusion plate 4 in the eighth groove 12, the depth of the diffusion plate 4 in the second groove 6 is consistent with the depth of the diffusion plate 4 in the seventh groove 11, the depth of the diffusion plate 4 in the third groove 7 is consistent with the depth of the diffusion plate 4 in the sixth groove 10, the diffusion body 1 acts on the reflection of low-frequency sound waves, the diffusion plate in the groove acts on the reflection of medium-high-frequency sound waves, the diffusion body 1 acts on the scattering of low-frequency sound energy, the diffusion plate in the groove acts on the scattering of medium-high-frequency sound energy, and the diffusion of sound energy of different frequencies of the diffusion body enables the diffusion of sound to be more uniform, and the fullness, the definition and the third dimension of sound are improved.

The broadband diffuser provided by the utility model has the main structure similar to that of a planar diffuser disclosed in patent number CN203782919U, and in the technical scheme, the high-frequency diffusion plate and the transverse diffusion plate are arranged in the wooden outer frame 2, so that the diffuser body 1 has better effect of diffusing sound in use, the problem of acoustic reflection of a plurality of frequency bands is solved in one product, and the cost and the construction difficulty are greatly reduced.

Further, as shown in fig. 1 and fig. 2, the cross section of the diffusion plate inside the wooden outer frame 2 is provided with a plurality of protrusions, the distances between the protrusions are equal, and the special shape of the tooth shape can enable the diffusion effect of the diffuser body 1 to be better when in use.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A broadband diffuser comprising a diffuser body (1), characterized in that: the diffuser body (1) specifically includes wooden frame (2), the inside of wooden frame (2) is equipped with 8 recesses, fixed mounting has a plurality of low frequency baffles (3) between groove and the groove, the inside of wooden frame (2) is located and forms first recess (5) in proper order between two low frequency baffles (3), second recess (6), third recess (7), fourth recess (8), fifth recess (9), sixth recess (10), seventh recess (11) and eighth recess (12), diffusion plate (4) of different degree of depth all are provided with in the inside of first recess (5), second recess (6), third recess (7), fourth recess (8), fifth recess (9), sixth recess (10), seventh recess (11) and eighth recess (12).

2. The broadband diffuser of claim 1, wherein: the depth of the diffusion plate (4) in the third groove (7) is larger than the depth of the diffusion plate (4) in the fourth groove (8), the depth of the diffusion plate (4) in the fourth groove (8) is larger than the depth of the diffusion plate (4) in the second groove (6), the depth of the diffusion plate (4) in the second groove (6) is larger than the depth of the diffusion plate (4) in the first groove (5), the depth of the diffusion plate (4) in the first groove (5) is consistent with the depth of the diffusion plate (4) in the eighth groove (12), the depth of the diffusion plate (4) in the second groove (6) is consistent with the depth of the diffusion plate (4) in the seventh groove (11), and the depth of the diffusion plate (4) in the third groove (7) is consistent with the depth of the diffusion plate (4) in the sixth groove (10).

3. The broadband diffuser of claim 1, wherein: the diffuser body (1) acts on reflection of low-frequency band sound waves, and the diffusion plate in the groove acts on reflection of medium-high frequency band sound waves.

4. The broadband diffuser of claim 1, wherein: and 8 grooves with equal height are arranged in the wooden outer frame (2).

5. The broadband diffuser of claim 1, wherein: the widths of the first groove (5) and the eighth groove (12) are 24mm, the depths of the first groove and the eighth groove are 88mm, the widths of the second groove (6), the third groove (7), the fourth groove (8), the fifth groove (9), the sixth groove (10) and the seventh groove (11) are 74mm, and the depths of the seventh groove and the eighth groove are 88mm.

6. The broadband diffuser of claim 2, wherein: the diffusion plate is flat plate in the first groove (5), and the depth is 6mm, the diffusion plate is 'wave shape' and the depth is 20mm in the second groove (6), the diffusion plate is 'wave shape' and the depth is 60mm in the third groove (7), the diffusion plate is 'wave shape' and the depth is 40mm in the fourth groove (8), the diffusion plate is 'wave shape' and the depth is 40mm in the fifth groove (9), the diffusion plate is 'wave shape' and the depth is 60mm in the sixth groove (10), the diffusion plate is 'wave shape' and the depth is 20mm in the seventh groove (11), the diffusion plate is flat plate in the eighth groove (12), and the depth is 6mm.