Air bin with silencing and filtering functions
By designing a sound-absorbing and filtering air chamber, and utilizing a structure of filter plates, sound-absorbing cotton, and baffles, the problems of high generator noise and impurity entry were solved, achieving noise reduction, equipment protection, and improved air intake and exhaust efficiency.
Patent Information
- Application Number
- CN202422704153.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Existing generator sets are noisy and prone to impurities, leading to noise pollution and equipment wear. Existing chassis have limited noise reduction effects.
Design a wind chamber with noise reduction and filtration function, including a shell, filter plate, first and second noise reduction cotton, guide plate and noise reduction cotton. The filtration and noise reduction structure reduces noise and impurities from entering, and the inclined design improves air intake and exhaust efficiency and is waterproof.
It effectively reduces generator noise, protects equipment lifespan, reduces the entry of impurities, improves air intake and exhaust efficiency, and prevents water from entering.
Smart Images
Figure CN223511029U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of generator technology, and more specifically, to a wind chamber with noise reduction and filtering function. Background Technology
[0002] Existing generator sets used for factory or residential power supply generally employ high-power diesel engines. Due to their large power output, these generators generate significant noise. The sources contributing to this noise include: generator noise, exhaust noise, mechanical noise, combustion noise, cooling fan and exhaust noise, and intake noise. Exhaust noise is the most significant source, reaching over 100 dB. This high decibel level of noise has a substantial impact on residents' physical and mental health, potentially causing harm. Existing generator set enclosures have limited noise reduction capabilities and cannot effectively control noise. Furthermore, existing enclosures rarely have structures to control the quality of incoming air. Impurities in the air entering the diesel engine also increase noise and cause wear and tear on engine components, reducing the engine's lifespan. Utility Model Content
[0003] This utility model discloses a wind chamber with a noise reduction and filtration function, which aims to improve the problems of high noise and easy entry of impurity-containing gas into existing generators.
[0004] The present invention adopts the following solution:
[0005] A sound-absorbing and filtering air chamber is installed at the air inlet and outlet of a generator chassis. It includes a housing that protrudes along the outer wall of the generator chassis and has a cavity communicating with the chassis air outlet. A filter plate is provided on the side wall facing the chassis air outlet. The filter plate has a plurality of first filter holes evenly distributed on it. First sound-absorbing cotton is disposed on the inner side of the filter plate, covering each of the first filter holes. A plurality of air guide plates are equidistantly arranged within the cavity along the vertical direction of the chassis air outlet. Each air guide plate is inclined upwards towards the chassis air outlet to form an airflow channel, and second sound-absorbing cotton is disposed within the airflow channel.
[0006] As a further improvement, the first sound-absorbing cotton is arranged on the inner wall of each side of the cavity.
[0007] As a further improvement, the bottom of the housing is provided as a downward sloping surface, and a plurality of second filter holes are provided through the sloping surface.
[0008] As a further improvement, a drainage hole is provided at the bottom of the housing.
[0009] As a further improvement, an assembly groove is formed on one side of the air guide plate along its length, and the second sound-absorbing cotton is configured to be limited by the groove wall of the assembly groove so as to be hung on the air guide plate.
[0010] As a further improvement, a positioning post is provided in the protrusion of the assembly groove, which is used to restrict the movement of the second sound-absorbing cotton along the length direction of the assembly groove.
[0011] As a further improvement, the air guide plate has mounting portions formed at both ends, and the mounting portions are provided with mounting holes, which are fixed to the inner wall of the housing by fasteners.
[0012] As a further improvement, the two ends of the air guide plate are connected to the assembly strip, and the assembly strip is fixed to the inner wall of the housing by welding or adhesive.
[0013] As a further improvement, two adjacent air guide plates are configured such that the bottom of the upper air guide plate is flush with the top of the lower air guide plate.
[0014] As a further improvement, an outwardly protruding drainage plate is provided along the top of the housing, and the drainage plate is configured to be inclined outward and downward.
[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:
[0016] 1. By incorporating a filter plate, a first sound-absorbing cotton, an air guide plate, and a second sound-absorbing cotton on the casing, airflow filtration and noise reduction are achieved, thereby reducing the noise generated by the generator. Specifically, during the intake process, air flows sequentially through the filter plate, the first sound-absorbing cotton, and the airflow channel. The filtration effect of the filter holes and the first sound-absorbing cotton reduces impurities, preventing them from entering the generator and causing wear on generator components, thus ensuring the generator's lifespan and reducing intake noise. During the exhaust process, gas flows sequentially from the outlet through the airflow channel, the cavity, the first sound-absorbing cotton, and the filter plate. The airflow channel is angled and contains a second sound-absorbing cotton that absorbs and reflects sound waves, preventing their propagation and reducing noise. When the airflow enters the cavity, the first sound-absorbing cotton provides a second level of noise reduction, further lowering the exhaust noise. Simultaneously, the exhaust airflow, after being filtered by the first sound-absorbing cotton and the filter plate, reduces its impact on the surrounding environment.
[0017] 2. First-level sound-absorbing cotton is installed on the inner walls of each side of the cavity to allow the airflow to undergo further noise reduction upon entering the cavity.
[0018] 3. The bottom of the casing is designed as a downward sloping surface, and multiple second filter holes are provided on the sloping surface to increase the air intake or exhaust area, improve the efficiency of air intake and exhaust, and ensure the normal operation of the generator.
[0019] 4. A drain hole is provided at the bottom of the casing so that the water inside the casing can be gathered at the drain hole along the bottom slope, thereby preventing water from entering the chassis.
[0020] 5. A protruding guide plate is provided at the top of the shell. The guide plate is designed to be inclined outward and downward so that rainwater and other water can flow outward along the guide plate, avoiding water flow directly washing the filter plate, thereby reducing the possibility of water flow entering the air chamber. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0022] Figure 1 and Figure 2 This is a schematic diagram of the structure of one embodiment of the present invention when it is assembled on a generator housing from different perspectives;
[0023] Figure 3 This is a schematic diagram of the structure of the wind turbine according to one embodiment of this utility model;
[0024] Figure 4 This is a cross-sectional view of one embodiment of the present invention;
[0025] Figure 5 This is a cross-sectional view of another embodiment of the present invention;
[0026] Figure 6 This is a schematic diagram of the air guide plate according to one embodiment of the present invention.
[0027] icon:
[0028] 1-Generator chassis;
[0029] 2-Shell; 21-Cavity; 22-Filter plate; 221-First filter hole; 23-Air guide plate; 231-Tunnel wall; 232-Positioning post; 233-Mounting part; 234-Assembly strip; 24-Second filter hole; 25-Drain hole; 26-Drain plate. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example
[0031] Combination Figures 1 to 6 This embodiment provides a wind chamber with a noise reduction and filtration function, which is installed in the air inlet and air outlet of the generator housing 1. It includes a housing 2. Specifically, the housing 2 is arranged to protrude along the outer wall of the generator housing 1. It has a cavity 21 that communicates with the air outlet of the housing. A filter plate 22 is provided on the side wall facing the air outlet of the housing. A plurality of first filter holes 221 are evenly arranged on the filter plate 22. A first noise reduction cotton is arranged on the inner side of the filter plate 22. The first noise reduction cotton is arranged to cover each of the first filter holes 221. A plurality of air guide plates 23 are evenly arranged in the cavity 21 along the vertical direction of the air outlet of the housing. Each air guide plate 23 is arranged to be inclined upward towards the air outlet of the housing to form an airflow channel. A second noise reduction cotton is arranged in the airflow channel.
[0032] For example, the generator housing 1 has an air inlet and an air outlet on its left and right sides, respectively. The housing 2 is positioned directly opposite the air outlet. External air enters from the housing 2 on the air inlet side, is processed inside the housing, and is discharged from the housing 2 on the air outlet side. During the air intake process, the air flows sequentially through the filter plate 22, the first sound-absorbing cotton, and the airflow channel. The air is filtered by the filter holes and the first sound-absorbing cotton, which reduces impurities and prevents them from entering the generator, causing wear on generator components and thus ensuring the generator's lifespan. It also reduces the noise of the air intake. During the exhaust process, the gas flows sequentially from the air outlet through the airflow channel, the cavity 21, the first sound-absorbing cotton, and the filter plate 22. The airflow channel is inclined and contains a second sound-absorbing cotton, which absorbs and reflects sound waves, thereby preventing sound wave propagation and reducing noise. When the airflow enters the cavity 21, it passes through the first sound-absorbing cotton, which also provides a second level of noise reduction, further reducing the exhaust noise. Meanwhile, the exhaust airflow, after being filtered by the first sound-absorbing cotton and the filter plate 22, can reduce the impact of the exhaust airflow on the surrounding environment.
[0033] It should be noted that this embodiment achieves airflow filtration and noise reduction by setting a filter plate 22, a first sound-absorbing cotton, an air guide plate 23, and a second sound-absorbing cotton on the housing 2, thereby reducing the noise generated by the generator. Compared with the prior art, the advantages of this embodiment are obvious. The sound-absorbing cotton can be sponge or other materials with sound absorption and noise reduction properties. Preferably, the two adjacent air guide plates 23 are configured such that the bottom of the upper air guide plate is flush with the top of the lower air guide plate, thereby ensuring a reflection effect on sound propagation and reducing external noise from the chassis.
[0034] In a preferred embodiment, first sound-absorbing cotton is disposed along each inner wall of the cavity 21. This allows the airflow to undergo further noise reduction upon entering the cavity 21. Each first sound-absorbing cotton can be fixed to the side wall of the cavity 21 by adhesive.
[0035] Furthermore, the bottom of the housing 2 is designed as a downward sloping surface, with multiple second filter holes 24 extending through the sloping surface. The sloping bottom with the second filter holes 24 increases the air intake or exhaust area, improves the efficiency of air intake and exhaust, and ensures the normal operation of the generator.
[0036] In a preferred embodiment, a drain hole 25 is provided at the bottom of the housing 2. Even if water enters the cavity 21 of the housing 2, it can flow along the inner wall of the housing 2 to the bottom and converge at the drain hole 25 from the bottom slope, thereby preventing water from entering the interior of the chassis.
[0037] Based on the above embodiments, in an optional embodiment of this utility model, an assembly groove is formed on one side of the air guide plate 23 along its length direction. The second sound-absorbing cotton is configured to be limited by the groove wall 231 of the assembly groove to be hung on the air guide plate 23. For example, the groove wall 231 is set at an acute angle, and after the second sound-absorbing cotton is inserted into the assembly groove, it can be limited by the action of the groove wall 231. Preferably, a positioning post 232 is provided in the assembly groove to restrict the movement of the second sound-absorbing cotton along the length direction of the assembly groove. During installation, the second sound-absorbing cotton is inserted into the assembly groove and then passes through the positioning post 232, so that the sound-absorbing cotton is positioned in the assembly groove and can avoid sliding under the action of the positioning post 232. This method facilitates the disassembly and assembly of the second sound-absorbing cotton, making it convenient for replacement and maintenance. In other embodiments, adhesive can also be used to fix the second sound-absorbing cotton.
[0038] There are two optional implementation methods for installing the air guide plate 23. The first method involves forming mounting portions 233 at both ends of the air guide plate 23, with mounting holes on each portion. These mounting holes are then fixed to the inner wall of the housing 2 via fasteners. The fasteners can be screws, allowing for easy assembly and disassembly by directly locking the air guide plate 23 to the housing 2. The second method involves first connecting both ends of the air guide plate 23 to the assembly strip 234, and then fixing the assembly strip 234 to the inner wall of the housing 2 by welding or adhesive. This avoids screw holes on the outer wall of the housing 2, preventing water from entering.
[0039] In other embodiments, a protruding guide plate 26 is provided along the top of the housing 2, and the guide plate 26 is configured to slope outward and downward. This allows rainwater and the like to flow outward along the guide plate 26, preventing water from directly washing over the filter plate 22, thereby reducing the possibility of water entering the air chamber.
[0040] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.
Claims
1. A duct with noise reduction and filtration function, used for installation at the air inlet and outlet of a generator housing, characterized in that, The device includes a housing that protrudes along the outer wall of the generator chassis. The housing has a cavity communicating with the chassis air vent. A filter plate is mounted on the side wall facing the chassis air vent. The filter plate has a plurality of first filter holes evenly distributed on it. First sound-absorbing cotton is disposed on the inner side of the filter plate, covering each of the first filter holes. A plurality of air guide plates are equidistantly arranged within the cavity along the vertical direction of the chassis air vent. Each air guide plate is inclined upwards towards the chassis air vent to form an airflow channel. Second sound-absorbing cotton is disposed within the airflow channel.
2. The air chamber with noise reduction and filtration function according to claim 1, characterized in that, The first sound-absorbing cotton is disposed on the inner wall of each side of the cavity.
3. The air chamber with noise reduction and filtration function according to claim 2, characterized in that, The bottom of the housing is configured as a downward sloping surface, and a plurality of second filter holes are provided through the sloping surface.
4. The air chamber with noise reduction and filtration function according to claim 2 or 3, characterized in that, The bottom of the housing is provided with a drainage hole.
5. The air chamber with noise reduction and filtration function according to claim 1, characterized in that, The air guide plate has an assembly groove formed on one side along its length, and the second sound-absorbing cotton is configured to be limited by the groove wall of the assembly groove so as to be hung on the air guide plate.
6. The air chamber with noise reduction and filtration function according to claim 5, characterized in that, The assembly groove has a protruding positioning post, which is used to restrict the movement of the second sound-absorbing cotton along the length of the assembly groove.
7. The air chamber with noise reduction and filtration function according to claim 5, characterized in that, The air guide plate has mounting portions formed at both ends, and mounting holes are provided on the mounting portions. The mounting holes are fixed to the inner wall of the housing by fasteners.
8. The air chamber with noise reduction and filtration function according to claim 5, characterized in that, The two ends of the air guide plate are connected to the assembly strip, and the assembly strip is fixed to the inner wall of the housing by welding or adhesive.
9. The air chamber with noise reduction and filtration function according to any one of claims 5-8, characterized in that, The two adjacent air guide plates are configured such that the bottom of the upper air guide plate is level with the top of the lower air guide plate.
10. The air chamber with noise reduction and filtration function according to claim 1, characterized in that, A flow guide plate protruding outward is provided along the top of the housing, and the flow guide plate is configured to tilt outward and downward.