Sound absorption adjusting diffusion plate
By designing the diffusion cavity, sound insulation board and sound guide board structure in the sound-absorbing diffusion plate, the problem of uneven diffusion of the existing sound-absorbing diffusion plate is solved, and more uniform and clear sound diffusion is achieved, enhancing the spatial sense and effect of the sound.
Patent Information
- Application Number
- CN202421096948.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The existing sound-absorbing diffusion plates have uneven diffusion problems during sound reflection and diffusion, which affects the quality and spatial sense of sound.
A sound absorption adjustment diffusion plate is designed. By forming a diffusion cavity between the bottom plate and the top plate, multiple sound insulation plates and diffusion holes are installed, and combining the sound guide plate and the sound outlet holes are used to achieve multi-angle diffusion and clarity improvement of sound. It also has optional sound-absorbing cotton and damping bearings to adjust the sound direction.
It effectively improves the diffusion effect and sense of space of the sound, reduces echoes and noise, enhances the clarity and uniformity of the sound, and adapts to the audio needs of different spaces.
Smart Images
Figure CN222295539U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building engineering, in particular to a sound absorbing and regulating diffusion plate. Background Art
[0002] Sound-absorbing diffusion panels are generally used to eliminate echoes caused by sound obstruction by hard objects. They are usually installed on the walls of larger rooms or conference rooms. Sound-absorbing diffusion panels mainly reflect and diffuse sound waves in different directions to make the sound quality more delicate.
[0003] Existing sound-absorbing diffusion panels are usually structures with cylindrical grooves evenly opened on the front side of the density board and circular holes evenly opened on the back side of the density board, so that the sound is reflected multiple times in different directions and has different phase differences. When in use, the sound is reflected multiple times by different grooves and holes, which is easy to diffuse unevenly, affecting the diffusion effect of the sound. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a sound absorbing and adjusting diffusion plate to improve the diffusion effect of sound.
[0005] The technical solution adopted by the utility model is:
[0006] A sound absorption and adjustment diffusion plate comprises a bottom plate, a top plate, a first side plate arranged on both sides in the width direction of the bottom plate, and a second side plate arranged on both sides in the length direction of the bottom plate, wherein the bottom plate abuts against a wall, and the bottom plate, the top plate, the first side plate and the second side plate are arranged to form a diffusion cavity, wherein a plurality of sound inlet holes are provided on one of the first side plates, a plurality of sound insulation plates are provided in the diffusion cavity, and the plurality of sound insulation plates divide the diffusion cavity into a plurality of diffusion areas along the length direction of the bottom plate, a plurality of diffusion holes are provided on the sound insulation plates, a plurality of sound outlet holes are provided on the top plate, each of the diffusion areas is provided with at least one sound outlet hole, and a sound guide plate is provided at the outlet end of the sound outlet hole.
[0007] The sound enters the diffusion cavity through the sound inlet hole and passes through the diffusion holes on multiple sound insulation boards to reduce noise and improve the clarity of the sound. The sound in each diffusion area passes through the sound outlet hole and is diffused at multiple angles through the sound guide plate, making the sound diffusion more even, increasing the spatial sense of the sound and improving the diffusion effect of the sound.
[0008] Optionally, the plurality of diffusion holes are evenly spaced along the width direction of the bottom plate, and the diffusion holes on two adjacent sound insulation plates are staggered.
[0009] The staggered diffusion holes can disperse sound waves, reduce sound echoes and improve sound clarity.
[0010] Optionally, the sound outlet hole is extended along the width direction of the bottom plate, the sound guide plates are arranged on both sides of the length direction of the sound outlet hole, and the two sound guide plates in the same diffusion area are inclined in directions away from each other.
[0011] Optionally, sound-absorbing cotton is arranged on two sides away from each other of two sound guide plates in the same diffusion zone.
[0012] The sound-absorbing cotton arranged on the sound guide plate reduces the generation of noise between adjacent diffusion areas and further improves the clarity of sound diffusion.
[0013] Optionally, a damping bearing is provided between the sound guide plate and the top plate, and the sound guide plate is rotatably connected to the top plate via the damping bearing.
[0014] It is convenient for staff to adjust the sound diffusion direction according to the sound collection needs in the space, and further improve the sound diffusion effect.
[0015] Optionally, a plurality of baffles are arranged in the diffusion zone, and the plurality of baffles disperse the diffusion zone into a plurality of regions along the width direction of the bottom plate.
[0016] It reduces mutual interference in the sound propagation direction within the same diffusion area and further improves the clarity of sound diffusion.
[0017] Optionally, sound-absorbing cotton is arranged on the outer sides of the bottom plate, the top plate, the first side plate and the second side plate.
[0018] The beneficial effects of the utility model are as follows: the sound enters the diffusion cavity through the sound inlet hole and passes through the diffusion holes on the multiple sound insulation boards to reduce noise and improve the clarity of the sound; the sound in each diffusion area passes through the sound outlet hole and is diffused at multiple angles through the sound guide plate, making the sound diffusion more uniform, increasing the spatial sense of the sound, and improving the diffusion effect of the sound. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 The utility model hides the top plate and the sound guide plate;
[0021] Figure 3 It is a cross-sectional view of the overall structure of the utility model.
[0022] The numbers and names in the figure correspond to each other as follows: 1. bottom plate; 2. top plate; 21. sound outlet hole; 3. first side plate; 31. sound inlet hole; 4. second side plate; 5. sound insulation plate; 51. diffusion hole; 6. sound guide plate; 7. baffle. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-3 , the utility model provides a technical solution:
[0025] A sound absorbing and adjusting diffuser, referring to Figure 1 , including a bottom plate 1, a top plate 2, a first side plate 3 arranged on the left and right sides of the bottom plate 1, and a second side plate 4 arranged on the upper and lower sides of the bottom plate 1. The bottom plate 1, the top plate 2, the two first side plates 3 and the two second side plates 4 are fixedly connected and surrounded to form a diffusion cavity. A plurality of sound inlet holes 31 are opened on the first side plate 3 on the left side from top to bottom. Sound-absorbing cotton is pasted on the outer sides of the bottom plate 1, the top plate 2, the first side plate 3 on the right side and the two second side plates 4.
[0026] A plurality of sound insulation boards 5 are vertically fixedly connected in the diffusion cavity, and the plurality of sound insulation boards 5 disperse the diffusion cavity from left to right into a plurality of diffusion areas. A plurality of diffusion holes 51 are evenly spaced from top to bottom on the sound insulation boards 5. In order to reduce echo and improve the clarity of sound, the diffusion holes 51 on two adjacent sound insulation boards 5 are staggered. A plurality of rectangular sound outlet holes 21 are opened on the top plate 2, and the sound outlet holes 21 extend from top to bottom. A sound outlet hole 21 is set on each diffusion area. After the sound enters the diffusion cavity from the sound inlet hole 31, it enters each diffusion area along the diffusion hole 51, and is finally diffused by the plurality of sound outlet holes 21. A plurality of baffles 7 are fixedly connected in the diffusion area, and the baffles 7 evenly divide the bottom plate 1 into a plurality of areas from top to bottom, thereby improving the clarity of sound diffusion.
[0027] Sound guide plates 6 are arranged on the left and right sides of the outlet end of the sound outlet hole 21. The sound guide plates 6 extend along the length direction of the sound outlet hole 21. The two sound guide plates 6 in the same diffusion zone are inclined in the direction away from each other. A damping bearing is arranged between the sound guide plate 6 and the top plate 2. The sound guide plate 6 is rotatably connected to the top plate 2 through the damping bearing to facilitate the adjustment of the diffusion direction of the sound. In order to improve the clarity of the sound diffusion, sound-absorbing cotton is pasted on the two sides away from each other of the two sound guide plates 6 in the same diffusion zone to absorb the noise penetrating the sound guide plate 6.
[0028] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A sound absorbing and adjusting diffuser, characterized in that: The invention comprises a bottom plate (1), a top plate (2), a first side plate (3) arranged on both sides of the bottom plate (1) in the width direction, and a second side plate (4) arranged on both sides of the bottom plate (1) in the length direction. The bottom plate (1) is in contact with a wall. The bottom plate (1), the top plate (2), the first side plate (3) and the second side plate (4) are arranged to form a diffusion cavity. A plurality of sound inlet holes (31) are provided on the first side plate (3). A plurality of sound insulation plates (5) are provided in the diffusion cavity. The plurality of sound insulation plates (5) divide the diffusion cavity into a plurality of diffusion zones along the length direction of the bottom plate (1). A plurality of diffusion holes (51) are provided on the sound insulation plates (5). A plurality of sound outlet holes (21) are provided on the top plate (2). Each diffusion zone is provided with at least one sound outlet hole (21). A sound guide plate (6) is provided at the outlet end of the sound outlet hole (21).
2. The sound absorbing and adjusting diffuser according to claim 1, characterized in that: The plurality of diffusion holes (51) are evenly spaced apart along the width direction of the bottom plate (1), and the diffusion holes (51) on two adjacent sound insulation plates (5) are staggered.
3. The sound absorbing and adjusting diffuser according to claim 1, characterized in that: The sound outlet hole (21) is extended along the width direction of the bottom plate (1), and the sound guide plates (6) are arranged on both sides of the sound outlet hole (21) in the length direction. The two sound guide plates (6) in the same diffusion zone are inclined in directions away from each other.
4. The sound absorbing and adjusting diffuser according to claim 1, characterized in that: Sound-absorbing cotton is arranged on two sides of the two sound guide plates (6) in the same diffusion zone that are away from each other.
5. The sound absorbing and adjusting diffuser according to claim 1, characterized in that: A damping bearing is provided between the sound guide plate (6) and the top plate (2), and the sound guide plate (6) is rotatably connected to the top plate (2) via the damping bearing.
6. The sound absorbing and adjusting diffuser according to claim 1, characterized in that: A plurality of baffles (7) are arranged in the diffusion zone, and the plurality of baffles (7) disperse the diffusion zone into a plurality of regions along the width direction of the bottom plate (1).
7. The sound absorbing and adjusting diffuser according to claim 1, characterized in that: Sound-absorbing cotton is arranged on the outer sides of the bottom plate (1), the top plate (2), the first side plate (3) and the second side plate (4).