Equipment sound insulation, noise reduction and ventilation system

Abstract

The utility model discloses an equipment sound insulation noise reduction ventilation system which comprises a shell, one end of the shell is provided with an air inlet, the other end, away from the air inlet, of the shell is provided with an air outlet directly communicated with the air inlet, the inner side of the shell is provided with multiple layers of upper and lower sound absorption plates which are evenly overlapped, and an S-shaped ventilation channel is arranged between every two adjacent sound absorption plates. The distance between the air channels can be customized according to specific conditions, one end of the S-shaped ventilation channel is communicated with the air inlet, the other end of the S-shaped ventilation channel is communicated with the air outlet, high-speed circulating air flows into the S-shaped ventilation channel through the air inlet, airflow bypassing is guided, noise and sound energy attenuation is increased, friction is generated between the air and the surface of the acoustic panel in the flowing process, and full contact is formed. The sound-absorbing plate can convert sound energy into heat energy and absorb the heat energy, and the other part of noise can be reflected, scattered and the like for multiple times after entering the internal pores of the sound-absorbing plate, so that the outward scattering output of sound wave energy is reduced, and finally, the wind noise output from the air outlet can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to an equipment sound insulation and noise reduction ventilation system. Background Art

[0002] At the exhaust vents of many equipment, the friction between the high-speed wind and the metal of the exhaust vents generates considerable noise, which seriously affects the surrounding environment (residential, commercial, etc.); therefore, it is urgent and necessary to design a sound insulation and noise reduction ventilation system with a simple structure and economical application to reduce the noise of the equipment exhaust vents. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] Therefore, the purpose of the present invention is to provide a sound insulation and noise reduction ventilation system for equipment to solve the problem proposed in the above background technology that the existing ventilation equipment generates considerable noise due to friction between the high-speed flowing wind and the metal of the exhaust port, which seriously affects the surrounding environment.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sound insulation and noise reduction ventilation system for equipment, which includes a shell, one end of the shell has an air inlet and the other end away from the air inlet has an air outlet directly connected to the air inlet, the inner side of the shell is provided with multiple layers of upper and lower, evenly overlapped sound-absorbing panels, and an S-shaped ventilation duct is provided between adjacent sound-absorbing panels, one end of the S-shaped ventilation duct is connected to the air inlet and the other end is connected to the air outlet, the upper part of the shell has an inspection port, and the top of the shell is matched with a cover plate covering the inspection port.

[0006] As a preferred solution of the equipment sound insulation and noise reduction ventilation system described in the utility model, the cross-sectional profile of the sound absorbing panel and the S-shaped ventilation duct can be a single arc shape, a corrugated shape, a bent shape or a straight flat shape.

[0007] As a preferred solution of the equipment sound insulation and noise reduction ventilation system described in the utility model, auxiliary sound absorbing panels are fixed on both sides of the inner wall of the shell, and the side edges of the sound absorbing panels are fixed to the inner side surfaces of the auxiliary sound absorbing panels.

[0008] As a preferred solution of the equipment sound insulation and noise reduction ventilation system described in the utility model, the inner sides of the shell and the cover are also coated with a sound insulation coating.

[0009] As a preferred solution of the equipment sound insulation and noise reduction ventilation system described in the utility model, there are multiple positioning seats around the upper end of the inner side of the shell, and the cover plate is locked and connected to the positioning seats through multiple locking parts arranged around it.

[0010] As a preferred solution of the equipment sound insulation and noise reduction ventilation system described in the utility model, the shell and cover plate can be made of aluminum alloy, steel or plastic.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: when the sound insulation and noise reduction ventilation system of this equipment is in use, high-speed wind flows into the S-shaped ventilation duct through the air inlet, and the air duct spacing can be customized according to specific circumstances. The S-shaped ventilation duct can guide the airflow to bypass and increase the noise energy attenuation. During the flow, the wind generates friction with the surface of the sound-absorbing panel and forms full contact. In this process, the sound-absorbing panel can convert the sound energy into heat energy and absorb it, while the other part of the noise will be reflected and scattered multiple times after entering the internal pores of the sound-absorbing panel, thereby reducing the outward output of the sound wave energy, and finally the wind noise output from the air outlet will be greatly reduced. In summary, the sound insulation and noise reduction ventilation system of this equipment has a simple structure, is economical and applicable, and has a good sound insulation and noise reduction effect, and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the air outlet structure of the device of the utility model;

[0013] Figure 2 This is a schematic diagram of the air inlet structure of the device of the utility model;

[0014] Figure 3 This is a side view diagram of the distribution structure of the sound-absorbing panel of the utility model;

[0015] Figure 4 This is a schematic diagram of the inner structure of the shell of the utility model;

[0016] Figure 5 This is a schematic cross-sectional view of the housing and cover of the utility model.

[0017] In the figure: 100, outer shell; 110, air inlet; 120, air outlet; 130, positioning seat; 140, sound insulation coating; 200, sound-absorbing panel; 210, S-shaped ventilation duct; 300, cover plate; 310, locking piece; 400, auxiliary sound-absorbing panel. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0021] Figure 1-Figure 5 The figure shows the complete structure of the sound insulation and noise reduction ventilation system of the utility model. Figure 1-Figure 5 In this embodiment, a sound insulation and noise reduction ventilation system for equipment includes a shell 100. The shell 100 has an air inlet 110 at one end and an air outlet 120 directly connected to the air inlet 110 at the other end facing away from the air inlet 110. The inner side of the shell 100 is provided with multiple layers of sound-absorbing panels 200 that are evenly overlapped, and an S-shaped ventilation duct 210 is provided between adjacent sound-absorbing panels 200. One end of the S-shaped ventilation duct 210 is connected to the air inlet 110 and the other end is connected to the air outlet 120. The upper part of the shell 100 has an inspection port, and the top of the shell 100 is matched with a cover plate 300 covering the inspection port.

[0022] The cross-sectional profiles of the sound-absorbing panel 200 and the S-shaped ventilation duct 210 can be single-arc, corrugated, bent, or straight. It is understood that the shape of the S-shaped ventilation duct 210 depends on the structural shape of the sound-absorbing panel 200. In actual applications, the shape of the sound-absorbing panel 200 can be single-arc, corrugated, bent, or straight according to actual needs. In this embodiment, the sound-absorbing panel 200 preferably adopts a corrugated shape. On the one hand, the multi-curved corrugated S-shaped ventilation duct 210 can maximize the contact area and retention time of the wind with the sound-absorbing panel 200 during the circulation process. On the other hand, the corrugated S-shaped ventilation duct 210 has lower resistance to the wind than the bent S-shaped ventilation duct 210. The two functions can effectively absorb sound energy and reduce noise generation.

[0023] Auxiliary sound-absorbing panels 400 are also fixed on both sides of the inner wall of the housing 100. The side edges of the sound-absorbing panels 200 are fixed to the inner side surfaces of the auxiliary sound-absorbing panels 400. During ventilation, since both sides of the S-shaped ventilation duct 210 are in direct contact with the inner wall of the housing 100, especially when the wind speed is high, the wind and the housing, especially the metal material, will generate a lot of noise. To avoid this, auxiliary sound-absorbing panels 400 are respectively provided on both sides of the inner wall of the housing 100 to block the sides of the S-shaped ventilation duct 210. This can further improve the noise reduction effect and better sound insulation performance.

[0024] It is understandable that the sound absorbing panels 200 and the auxiliary sound absorbing panels 400 can be prefabricated and fixed before being placed in the housing 100, thereby simplifying the installation process and making assembly more convenient. Furthermore, the spacing between the sound absorbing panels 200 can be customized according to actual needs. The larger the spacing, the greater the ventilation volume of the single S-shaped ventilation duct 210, and vice versa.

[0025] Furthermore, the inner sides of the housing 100 and the cover plate 300 are also coated with a sound insulation coating 140 . By coating the inner sides of the housing 100 and the cover plate 300 with the sound insulation coating 140 , the sound insulation performance of the device is further improved.

[0026] Furthermore, a plurality of positioning seats 130 are provided around the inner upper end of the shell 100, and a plurality of locking members 310 are provided around the cover plate 300 to form a locking connection with the positioning seats 130. It can be understood that the locking members 310 and the positioning seats 130 can be threaded, snap-fitted, etc., as long as the disassembly and assembly between the cover plate 300 and the shell 100 is convenient. In actual use, when the sound-absorbing panel 200 needs to be replaced, the staff can remove the cover plate 300, and then remove and replace the sound-absorbing panel 200 and the auxiliary sound-absorbing panel 400. The operation is simple and easy to use.

[0027] Furthermore, the housing 100 and the cover 300 may be made of aluminum alloy, steel, or plastic. It is understood that the materials of the housing 100 and the cover 300 are not limited to traditional metal materials and can be set according to actual needs.

[0028] In summary, in the present embodiment, a device sound insulation and noise reduction ventilation system, when in use, high-speed wind flows into the S-shaped ventilation duct 210 through the air inlet 110, guiding the airflow to bypass and increase the noise energy attenuation. The wind generates friction with the surface of the sound-absorbing panel 200 during the flow and forms full contact. In this process, the sound-absorbing panel 200 can convert sound energy into heat energy and absorb it, while the other part of the noise will undergo multiple reflections and scattering after entering the internal pores of the sound-absorbing panel 200, thereby reducing the outward output of sound wave energy, and finally the wind noise output from the air outlet 120 will be greatly reduced, so that the device sound insulation and noise reduction ventilation system has a simple structure, is economical and applicable, and has a good sound insulation and noise reduction effect, and is suitable for promotion and application.

[0029] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A sound insulation and noise reduction ventilation system for equipment, characterized in that: The invention comprises a shell (100), wherein one end of the shell (100) has an air inlet (110) and the other end facing away from the air inlet (110) has an air outlet (120) directly connected to the air inlet (110), the inner side of the shell (100) is provided with multiple layers of sound-absorbing panels (200) that are evenly stacked, and an S-shaped ventilation duct (210) is provided between adjacent sound-absorbing panels (200), one end of the S-shaped ventilation duct (210) is connected to the air inlet (110) and the other end is connected to the air outlet (120), the upper part of the shell (100) has an inspection port, and the top of the shell (100) is matched with a cover plate (300) covering the inspection port.

2. The equipment sound insulation and noise reduction ventilation system according to claim 1, characterized in that: The cross-sectional profiles of the sound absorbing panel (200) and the S-shaped ventilation duct (210) may be single arc, corrugated, bent, or straight.

3. The equipment sound insulation and noise reduction ventilation system according to claim 1, characterized in that: Auxiliary sound absorbing panels (400) are also fixed on both sides of the inner wall of the shell (100), and the side edges of the sound absorbing panels (200) are fixed to the inner side surfaces of the auxiliary sound absorbing panels (400).

4. The equipment sound insulation and noise reduction ventilation system according to claim 1, characterized in that: The inner sides of the housing (100) and the cover plate (300) are also coated with a sound insulation coating (140).

5. The equipment sound insulation and noise reduction ventilation system according to claim 1, characterized in that: A plurality of positioning seats (130) are provided around the inner upper end of the housing (100), and a plurality of locking members (310) are provided around the cover plate (300) to form a locking connection with the positioning seats (130).

6. The equipment sound insulation and noise reduction ventilation system according to claim 1, characterized in that: The housing (100) and the cover plate (300) may be made of aluminum alloy, steel, or plastic.

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