Power distribution room with noise reduction function

Abstract

The utility model discloses a power distribution room with noise reduction function, including power distribution room body, the one side of power distribution room body is provided with the air inlet, the inside of sealed frame is provided with a plurality of staggered partition, the partition is opposite direction and is formed into continuous S type airflow channel with the inclination setting, the outside of partition is provided with louver, the louver includes a plurality of parallel arrangement's arc blade, the both ends of arc blade are through pivot and are rotatoryly connected with the lateral wall of louver. Through setting the continuous S type airflow channel of adjacent partition staggered formation, make airflow change direction constantly to lengthen the flow path of airflow, and cooperate the arc blade structure of louver, thereby double lengthen airflow path and increase the reflection number of sound wave, play good noise reduction effect to power distribution room, the louver adopts pivot drive blade opening and closing design, guarantees the ventilation demand while maximum limit reduces the noise spread.

Description

Technical Field

[0001] This utility model relates to the field of power distribution room technology, and in particular to a power distribution room with noise reduction function. Background Technology

[0002] With the acceleration of urbanization and the increase in population density, power distribution rooms are usually built near residential or commercial areas. Power distribution rooms contain a large number of devices, such as transformers, distribution cabinets, and switching equipment, which generate electromagnetic noise, mechanical noise, and ventilation noise during operation. These noises interfere with and harm the quality of life, working environment, and physical and mental health of the surrounding residents, thus causing many noise pollution complaints.

[0003] Good ventilation and heat dissipation are essential to ensure the stable and normal operation of equipment in a power distribution room. However, ventilation openings often become major channels for noise propagation, allowing noise generated during equipment operation to easily spread to the outside. Currently, existing power distribution rooms still use traditional straight-through ventilation opening designs. This design, lacking effective noise reduction measures, cannot block or reduce noise, resulting in a large amount of noise leaking directly into the surrounding environment. Therefore, a power distribution room with noise reduction capabilities has been invented to address the shortcomings of power distribution rooms in terms of ventilation and noise reduction. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a power distribution room with noise reduction function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A power distribution room with noise reduction function includes a power distribution room body. An air inlet is provided on one side of the power distribution room body. A sealing frame is installed on the air inlet. Several staggered partitions are arranged inside the sealing frame. The partitions are inclined in opposite directions to form a continuous S-shaped airflow channel. Louvers are provided on the outside of the partitions. The louvers include multiple parallel arc-shaped blades. The two ends of the arc-shaped blades are rotatably connected to the side wall of the louvers through a pivot. The arc-shaped blades rotate around the pivot axis.

[0007] Preferably, the louvers are slidably connected to the main body of the power distribution room via a slide rail, and the slide rail drives the louvers to slide up and down along the main body of the power distribution room. A limit lock is provided at the lower end of the slide rail.

[0008] Preferably, sealing strips are provided on both sides of the sealing frame, and the sealing strips are fitted to both ends of the arc-shaped blade.

[0009] Preferably, a sound-absorbing strip is provided on one side of the partition, and a sound-absorbing hole is provided on the other side of the partition.

[0010] Preferably, a filter screen is installed between the partition and the louvers, and the filter screen is connected to the sealing frame by a snap fastener.

[0011] Preferably, the inner wall of the sealing frame is equipped with a vibration isolation pad.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up a continuous S-shaped airflow channel formed by the staggered arrangement of adjacent partitions, the airflow direction is constantly changed to extend the airflow path, thereby reducing the airflow speed. In addition, the curved blade structure of the louvers causes sound waves to undergo multiple reflections and refractions during propagation, increasing the propagation path of sound waves within the louvers. This doubly extends the airflow path and increases the number of sound wave reflections, resulting in a good noise reduction effect for the power distribution room. The louvers adopt a rotating shaft-driven blade opening and closing design, which minimizes noise propagation while ensuring ventilation requirements, thus effectively achieving a dynamic balance between ventilation and noise reduction.

[0014] 2. By employing a composite sound-absorbing design of sound-absorbing strips and sound-absorbing holes on the partition, the sound-absorbing strips can reduce low-frequency and mid-frequency noise, while the sound-absorbing holes have a good absorption effect on mid-frequency and high-frequency noise. The combination of sound-absorbing strips and sound-absorbing holes enables the entire structure to effectively absorb sound waves across the entire frequency range. The design of the sliding rail and limit lock not only enables the louvers to have an overall lifting function, facilitating the cleaning and maintenance of the louvers, but also prevents the louvers from exceeding the predetermined range during sliding, avoiding the louvers from falling off or being damaged, thereby improving the safety of the power distribution room. Attached Figure Description

[0015] Figure 1 The three-dimensional representation of this utility model Figure 1 ;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 The three-dimensional representation of this utility model Figure 2 ;

[0018] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0019] Figure 5 This is a schematic diagram of the structure of the louver of this utility model;

[0020] Figure 6 This is a schematic diagram of the air inlet structure of this utility model.

[0021] In the diagram: 1. Power distribution room body; 2. Air inlet; 3. Sealing frame; 31. Vibration isolation pad; 4. Partition; 41. Sound absorption strip; 42. Sound absorption hole; 5. S-shaped airflow channel; 6. Louver; 61. Blade; 62. Rotating shaft; 63. Sealing strip; 7. Slide rail; 71. Limit lock; 8. Filter screen; 81. Buckle. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] like Figures 1-6 As shown, a power distribution room with noise reduction function includes a power distribution room body 1. An air inlet 2 is provided on one side of the power distribution room body 1. A sealing frame 3 is installed on the air inlet 2. A plurality of staggered partitions 4 are arranged inside the sealing frame 3. The partitions 4 are inclinedly arranged on the sealing frame 3. Vibration isolation pads 31 are installed on the inner wall of the sealing frame 3.

[0027] Since the sealing frame 3 is equipped with a partition 4, the airflow will cause the partition 4 to shake when it passes through it. The vibration isolation pad 31 can buffer the shaking of the partition 4, thereby reducing the collision and impact between the partition 4 and the sealing frame 3. Furthermore, the partition 4 will generate friction with the sealing frame 3 during the shaking process, which will generate noise. The presence of the vibration isolation pad 31 can reduce the direct friction between the two, thereby reducing the generated noise.

[0028] Furthermore, the sealing frame 3 can effectively seal the air inlet 2 and guide the airflow entering the air inlet 2 to flow along the designed path; in addition, the sealing frame 3 provides stable support and fixation for the partition 4, filter screen 8, and louver 6 installed at the air inlet 2.

[0029] refer to Figure 6 As shown, the partition 4 is inclined in opposite directions to form a continuous S-shaped airflow channel 5. When the air passes through, it forms an S-shaped flow path. This path design can extend the airflow path and make the airflow continuously change its flow direction in the channel, effectively reducing the airflow speed, thereby reducing the noise generated by airflow impacting the equipment and air vibration. In addition, this design can make the airflow evenly distributed in the channel, avoiding excessive local airflow concentration or vortex phenomenon, thereby improving the ventilation efficiency and facilitating the heat dissipation of the equipment in the power distribution room body 1.

[0030] Furthermore, a sound-absorbing strip 41 is provided on one side of the partition 4, and a sound-absorbing hole 42 is provided on the other side of the partition 4. The S-shaped airflow channel 5 increases the contact time between the air and the sound-absorbing strip 41 and the sound-absorbing hole 42 on the partition 4. Under the same air inlet 2 area, compared with a straight channel, the S-shaped airflow channel 5 can increase the residence time of the air in the channel, so that the air can come into more full contact with the sound-absorbing strip 41 and the sound-absorbing hole 42, thereby achieving a better noise reduction effect.

[0031] Furthermore, the sound-absorbing strip 41 is combined with the sound-absorbing hole 42. Low-frequency noise is first absorbed by the sound-absorbing strip 41, while mid-frequency noise is simultaneously absorbed by both the sound-absorbing strip 41 and the sound-absorbing hole 42. High-frequency noise is mainly absorbed by the sound-absorbing hole 42. This synergistic effect allows the entire structure to effectively absorb sound waves across the entire frequency range, avoiding the problem of poor sound absorption performance of a single sound-absorbing material in certain frequency bands.

[0032] refer to Figure 1 , Figure 2As shown, the outer side of the partition 4 is provided with louvers. The louvers 6 include multiple parallel arc-shaped blades 61. The arc-shaped blades 61 can reflect and absorb noise to a certain extent. When noise propagates to the louvers, the surface of the arc-shaped blades 61 will reflect some of the noise. At the same time, the shape and arrangement of the arc-shaped blades 61 will also interfere with the propagation of noise, thereby reducing the noise from the air inlet 2 to the outside.

[0033] Furthermore, the arc-shaped blade 61 has good structural strength and stability, and can evenly distribute the force to various parts of the arc-shaped blade 6 when subjected to a certain wind pressure and external impact force, thereby reducing excessive local stress on the louver 61.

[0034] refer to Figure 5 As shown, the two ends of the arc-shaped blade 61 are rotatably connected to the side wall of the louver 6 via a rotating shaft 62. The arc-shaped blade 61 rotates around the axis of the rotating shaft 62 to open or close. By opening or closing the arc-shaped blade 61, the ventilation area of ​​the louver 6 can be flexibly adjusted, thereby controlling the airflow entering the power distribution room 1. When the equipment operating load is large and more ventilation and heat dissipation are required, the blade can be opened to a larger angle; while when the equipment load is small, the blade opening angle can be appropriately reduced to maintain the stability of indoor temperature and humidity.

[0035] Furthermore, the louvers 6 can adjust their opening and closing status according to external climate conditions (such as wind speed, wind direction, temperature, humidity, etc.). For example, in windy weather, the opening angle of the louvers can be appropriately reduced to prevent strong winds from directly impacting the interior of the power distribution room; in hot weather, the opening angle of the louvers can be increased to increase ventilation and reduce indoor temperature.

[0036] Furthermore, sealing strips 63 are provided on both sides of the sealing frame 3. The sealing strips 63 fit snugly against the two ends of the arc-shaped blades 61. When closed, the arc-shaped blades 61 can be tightly arranged to form a relatively closed barrier, effectively preventing external dust, rainwater, and other contaminants from entering the interior of the power distribution room 1. This is of great significance for protecting the equipment inside the power distribution room 1 from dust accumulation and moisture corrosion, and is especially suitable for outdoor or harsh environments.

[0037] refer to Figure 3 As shown, the louver 6 is slidably connected to the power distribution room body 1 via a slide rail 7. The slide rail 7 drives the louver 6 to slide up and down along the power distribution room body 1. The slide rail 7 makes the cleaning and maintenance of the louver 6 more convenient. When cleaning or maintenance is required, the louver 6 can be slid along the slide rail 7 to an easy-to-operate position without disassembling the entire louver 6.

[0038] Furthermore, a limit lock 71 is provided at the lower end of the slide rail 7. This limit lock 71 prevents the louver 6 from exceeding a predetermined range during sliding, thus avoiding detachment or damage and improving the safety of the power distribution room body 1. Simultaneously, the limit lock 71 ensures that the louver 6 is fixed in place after being adjusted to a suitable position, preventing displacement due to external factors. In addition, bolt holes are provided on both sides of the louver 6, which connect to bolts at the upper end of the slide rail 7, allowing the louver 6 to be fixed on the upper side after sliding upwards, preventing it from sliding downwards.

[0039] refer to Figure 3 , Figure 4 As shown, a filter screen 8 is installed between the partition 4 and the louver 6. The filter screen 8 can effectively intercept dust, debris, and other impurities in the air, preventing them from entering the interior of the power distribution room body 1. The filter screen 8 is connected to the sealing frame 3 by a buckle 81. The buckle 81 can fix the position of the filter screen 8, preventing it from shifting or loosening under airflow impact and equipment vibration. In addition, when the filter screen 8 needs to be cleaned or replaced, simply loosen the buckle 81 and slide the louver 6 downward to easily remove the filter screen 8, thereby reducing the workload and time cost of maintenance.

[0040] refer to Figure 5 , Figure 6 As shown, the S-shaped airflow channel 5 and the louver 6 together form a multi-layered sound barrier. Through this multi-layered barrier design, noise needs to undergo multiple reflections, absorptions and isolations during propagation, which greatly reduces the noise of the power distribution room 1.

[0041] In addition, while reducing the noise of the main body 1 of the power distribution room, the design of the S-shaped airflow channel 5 combined with the louver 6 can also meet the ventilation requirements of the main body 1 of the power distribution room. The louver 6 can control the ventilation volume by adjusting the opening angle of the arc blade 61, while the partition 4, through its special airflow channel design, minimizes the transmission of noise while ensuring the ventilation effect, thus achieving a balance between ventilation and noise reduction.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power distribution room with noise reduction function, comprising a power distribution room body (1), characterized in that: An air inlet (2) is provided on one side of the main body (1) of the power distribution room. A sealing frame (3) is installed on the air inlet (2). Several staggered partitions (4) are provided inside the sealing frame (3). The partitions (4) are inclined in opposite directions to form a continuous S-shaped airflow channel (5). A louver (6) is provided on the outside of the partition (4). The louver (6) includes multiple parallel arc-shaped blades (61). The two ends of the arc-shaped blades (61) are rotatably connected to the side wall of the louver (6) through a rotating shaft (62). The arc-shaped blades (61) rotate around the axis of the rotating shaft (62).

2. A power distribution room with noise reduction function as described in claim 1, characterized in that, The louver (6) is slidably connected to the main body (1) of the power distribution room via a slide rail (7). The slide rail (7) drives the louver (6) to slide up and down along the main body (1) of the power distribution room. A limit lock (71) is provided at the lower end of the slide rail (7).

3. A power distribution room with noise reduction function as described in claim 1, characterized in that, The sealing frame (3) is provided with sealing strips (63) on both sides, and the sealing strips (63) are attached to the two ends of the arc blade (61).

4. A power distribution room with noise reduction function as described in claim 1, characterized in that, A sound-absorbing strip (41) is provided on one side of the partition (4), and a sound-absorbing hole (42) is provided on the other side of the partition (4).

5. A power distribution room with noise reduction function as described in claim 1, characterized in that, A filter screen (8) is installed between the partition (4) and the louver (6), and the filter screen (8) is connected to the sealing frame (3) by a buckle (81).

6. A power distribution room with noise reduction function as described in claim 1, characterized in that, The inner wall of the sealing frame (3) is equipped with a vibration isolation pad (31).

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