Novel noise elimination static pressure box of heating ventilation air conditioner

Abstract

The utility model relates to the technical field of plenum chambers, and discloses a novel heating ventilation air conditioner noise elimination plenum chamber which comprises a chamber body, a baffle is connected in the chamber body in a sliding mode, a clamping plate is fixedly connected to one side of the chamber body, a handle is fixedly connected to one side of the clamping plate, a thick hole is formed in the baffle, a thin hole is formed in the baffle, and the handle is fixedly connected to the other side of the clamping plate. A guide assembly is arranged in the box body, the guide assembly is used for guiding airflow, the guide assembly comprises a guide plate, the outer wall of the guide plate is fixedly connected to the interior of the box body, a noise reduction layer is arranged on the outer wall of the guide plate, and an air inlet is formed in the box body. According to the static pressure box, air-conditioning air enters the box body from the two different air inlets, when the air enters the box body from the specific air inlets and makes contact with the guide plates and the silencing layers on the outer walls of the guide plates, due to the special inclined face structures of the guide plates, the air can be exhausted from the thick holes or the thin holes of the clamping plates so as to achieve concentration or diffusion of the air quantity, and therefore the practicability of the static pressure box is improved.

Description

Technical Field

[0001] This utility model relates to the field of static pressure box technology, and in particular to a novel HVAC silencer static pressure box. Background Technology

[0002] In modern building HVAC systems, the airflow noise and uneven air volume distribution generated during the operation of air conditioning equipment have always been key factors affecting indoor environmental comfort and the energy-efficient operation of air conditioning systems. With people's increasing requirements for indoor acoustic environment and the need for refined control of air conditioning systems, air conditioning silencer plenum boxes can not only effectively reduce the noise generated by the air conditioning system, but also flexibly adjust the air volume range according to actual needs, thereby optimizing the performance of the air conditioning system, improving the quality of indoor space, and creating a quieter, more comfortable and energy-efficient indoor environment for people.

[0003] Traditional HVAC static pressure boxes typically employ a relatively simple box structure, and may only contain some basic sound-absorbing materials, such as ordinary glass wool felt. Their technical principle is mainly based on the deceleration and diffusion process of airflow within the box. By increasing the cross-sectional area, the airflow velocity is reduced, thereby reducing the noise generated by the collision between the airflow and the inner wall and internal structure of the box.

[0004] However, due to the limitations of traditional HVAC plenum boxes in their structural design, they cannot accurately and effectively adjust the air volume range. In practical applications, different air conditioning usage scenarios have significantly different air volume requirements, and traditional plenum boxes cannot meet these diverse needs. This can easily lead to excessive air volume in some areas, resulting in energy waste, while insufficient air volume in other areas affects the air conditioning effect. Therefore, a new type of HVAC silencer plenum box is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a novel HVAC silencer plenum chamber, which aims to improve the problem that traditional HVAC plenum chambers in the prior art cannot accurately and effectively adjust the air volume range due to the limitations of their structural design.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel HVAC silencer static pressure box includes a box body, a baffle slidably connected inside the box body, a clamping plate fixedly connected to one side of the box body, a handle fixedly connected to one side of the clamping plate, coarse holes and fine holes inside the baffle, and a guide component inside the box body for guiding airflow.

[0008] The guiding assembly includes a guide plate, the outer wall of which is fixedly connected to the inside of the housing. The outer wall of the guide plate is provided with a sound-absorbing layer. An air inlet is provided inside the housing. A connecting assembly is provided on the side wall of the housing. The connecting assembly is used to connect the housing and the card plate.

[0009] As a further description of the above technical solution:

[0010] The connecting component includes a hollow column, one end of which is fixedly connected to the side wall of the box, and a through hole is provided inside the box;

[0011] As a further description of the above technical solution:

[0012] A connecting post is fixedly connected to the side wall of the card plate, and the connecting post is slidably connected inside the through hole;

[0013] As a further description of the above technical solution:

[0014] The hollow column has a slot inside, and the connecting column has a sliding groove inside;

[0015] As a further description of the above technical solution:

[0016] A fixed column is fixedly connected inside the connecting column, and a sliding column is slidably connected inside the fixed column;

[0017] As a further description of the above technical solution:

[0018] One end of the sliding column is fixedly connected to a limiting plate, and the limiting plate is slidably connected inside the sliding groove.

[0019] As a further description of the above technical solution:

[0020] A locking block is fixedly connected to one side of the limiting plate, and the locking block is slidably connected inside the slot.

[0021] As a further description of the above technical solution:

[0022] A spring is fitted on the outer wall of the fixed column, and the two ends of the spring are respectively fixedly connected to the inside of the connecting column and the limiting plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, air conditioning air enters the box from two different air inlets. When the air enters through a specific air inlet and comes into contact with the guide plate and its outer wall sound-absorbing layer, due to the special inclined structure of the guide plate, the air will be discharged from the coarse or fine holes of the plate to achieve the concentration or diffusion of air volume. This solves the problem that traditional HVAC static pressure boxes cannot accurately and effectively adjust the air volume range due to the limitations of structural design, thereby improving the practicality of the static pressure box.

[0025] 2. In this utility model, a connecting column passes through the through hole of the box body and is inserted into a hollow column. The inner wall of the hollow column presses against the locking block inside the connecting column, causing the locking block to drive the limiting plate to slide within the slide groove and compress the spring. The spring rebounds, causing the limiting plate and the locking block to reset. The locking block then engages with the slot to complete the fixation, achieving quick disassembly of the locking plate for easy maintenance of internal components. This solves the problem of low maintenance efficiency caused by the fixed structure and difficulty in disassembling internal components in traditional static pressure boxes, thereby improving the flexibility of the static pressure box. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the novel HVAC silencer static pressure box proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the novel HVAC silencer static pressure box proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the exploded structure of the novel HVAC silencer static pressure box proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the hollow column structure of the novel HVAC silencer static pressure box proposed in this utility model.

[0030] Legend:

[0031] 1. Housing; 2. Plate; 3. Baffle; 4. Coarse hole; 5. Fine hole; 6. Guide plate; 7. Sound-absorbing layer; 8. Handle; 9. Connecting column; 10. Hollow column; 11. Slot; 12. Sliding groove; 13. Fixing column; 14. Sliding column; 15. Limiting plate; 16. Block; 17. Spring; 18. Air inlet. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3 An embodiment of this utility model is provided: a novel HVAC silencer static pressure box, including a box body 1, a baffle 3 slidably connected inside the box body 1, a clamping plate 2 fixedly connected to one side of the box body 1, and a handle 8 fixedly connected to one side of the clamping plate 2 for easy adjustment by the operator as needed. The baffle 3 has coarse holes 4 and fine holes 5 inside. A guide component is provided inside the box body 1 for guiding airflow.

[0034] The guiding assembly includes a guide plate 6, the outer wall of which is fixedly connected to the inside of the housing 1. One side is an upper slope and the other side is a lower slope to ensure that the airflow flows out stably and evenly after the noise reduction treatment. The outer wall of the guide plate 6 is provided with a sound-absorbing layer 7, which is made of sound-absorbing cotton and can effectively reduce the noise generated when the airflow passes through. An air inlet 18 is provided inside the housing 1 to introduce the air conditioning airflow into the housing 1. A connecting assembly is provided on the side wall of the housing 1 to connect the housing 1 and the card plate 2.

[0035] Specifically, during the use of this plenum chamber, the airflow direction and volume of the air conditioning can be flexibly adjusted according to needs. Through two air inlets 18, users can introduce air conditioning air into the chamber 1. When the air conditioning air enters the chamber 1 through one of the air inlets 18, it first comes into contact with the guide plate 6 inside the chamber 1. The outer wall of the guide plate 6 is covered with a sound-absorbing layer 7, which effectively reduces the noise generated by the incoming airflow. The sound-absorbing layer 7 is made of sound-absorbing cotton, which can reduce noise caused by changes in wind speed over a wide frequency range. The guide plate 6 has an upward sloping side on one side and a downward sloping side on the other, ensuring good control over the direction and speed of airflow. When the air enters the chamber 1 from the air inlet 18, it first comes into contact with the upward sloping surface of the guide plate 6, which helps to smoothly guide the airflow to different areas within the chamber 1. When the wind comes into contact with the lower slope of the guide plate 6, it is guided through the coarse holes 4 inside the card plate 2, thereby forming a concentrated airflow, improving the efficiency and flow of air volume, ensuring that the air volume is concentrated and smoothly discharged, avoiding the dispersion of airflow, thereby improving the air pressure and static pressure effect. When the wind enters the housing 1 from another air inlet 18, the airflow will come into contact with the lower slope of the sound-absorbing layer 7, and further pass through the fine holes 5 inside the card plate 2 for discharge. The design of the fine holes 5 allows the airflow to diffuse, thereby making the air volume stable and dispersed, avoiding the phenomenon of excessively high or low local pressure, achieving an adjustable air volume effect, and being able to adapt to different environments and usage needs.

[0036] Reference Figure 1 , Figure 3 and Figure 4The connecting assembly includes a hollow column 10, one end of which is fixedly connected to the side wall of the housing 1. A through hole is provided inside the housing 1. A connecting column 9 is fixedly connected to the side wall of the card plate 2. The connecting column 9 is slidably connected inside the through hole. A slot 11 is provided inside the hollow column 10. A sliding groove 12 is provided inside the connecting column 9. A fixing column 13 is fixedly connected inside the connecting column 9. A sliding column 14 is slidably connected inside the fixing column 13. A limiting plate 15 is fixedly connected to one end of the sliding column 14. The limiting plate 15 is slidably connected inside the sliding groove 12. A locking block 16 is fixedly connected to one side of the limiting plate 15. The locking block 16 can slide inside the slot 11, thereby achieving a firm connection between the card plate 2 and the housing 1. The locking block 16 is slidably connected inside the slot 11. A spring 17 is sleeved on the outer wall of the fixing column 13. The function of the spring 17 is to ensure a tight fit between the connecting column 9 and the limiting plate 15 by adjusting the elastic force. The two ends of the spring 17 are fixedly connected inside the connecting column 9 and the limiting plate 15, respectively.

[0037] Specifically, when the card plate 2 needs to be disassembled or assembled, the user only needs to tightly attach the card plate 2 to one side of the housing 1. At this time, the connecting post 9 on the side wall of the card plate 2 will pass through the through hole inside the housing 1 and insert into the hollow post 10. The locking block 16 inside the connecting post 9 will be squeezed by the inner wall of the hollow post 10, causing the locking block 16 to move in conjunction with the limiting plate 15. The limiting plate 15 is located in the slide groove 12. The design of the slide groove 12 ensures that the limiting plate 15 can slide within a certain trajectory range. When the limiting plate 15 is squeezed, it will apply pressure to the spring 17 on one side, so that the spring 17 provides a certain elastic force in the compressed state to assist the movement of the limiting plate 15. When the connecting post 9 slides completely into the hollow post 10, the spring 17 will release the force and return to its original state, pushing the limiting plate 15 and the locking block 16 to reset. At this time, the locking block 16 will be firmly locked into the locking groove 11 inside the hollow column 10, thereby fixing the position of the locking plate 2, ensuring that the locking plate 2 is stably installed, effectively reducing the difficulty of disassembling the locking plate 2, improving maintenance efficiency, and ensuring the sealing and stability of the box 1.

[0038] Working Principle: During the use of this static pressure box, air conditioning air can be introduced into the box 1 from two different air inlets 18 as needed. When the air conditioning air enters the box 1 from one of the air inlets 18, it will come into contact with the guide plate 6 inside the box 1. The sound-absorbing layer 7 on the outer wall of the guide plate 6 will reduce the noise of the air. At the same time, since the guide plate 6 is shaped with an upward slope on one side and a downward slope on the other side, the air will be discharged from the coarse holes 4 inside the clamping plate 2 when it comes into contact with the downward slope of the guide plate 6, making the air volume more concentrated. At the same time, when the air enters the box 1 from the other air inlet 18, it will come into contact with the downward slope of the sound-absorbing layer 7, and the air will be discharged from the fine holes 5 inside the clamping plate 2, causing the air volume to diffuse. This allows for effective adjustment of the air volume range. The effect is that when the card plate 2 needs to be disassembled or assembled, the card plate 2 is first attached to one side of the box 1. During this process, the connecting post 9 on the side wall of the card plate 2 will pass through the through hole inside the box 1 and be inserted into the hollow post 10. The inner wall of the hollow post 10 will press the locking block 16 inside the connecting post 9, so that the locking block 16 will drive the limiting plate 15 on one side to slide inside the slide groove 12. At the same time, the limiting plate 15 will be pressed against the spring 17 connected on one side. When the connecting post 9 is completely slid into the hollow post 10, the spring 17 will release the force and rebound, thereby driving the limiting plate 15 and the locking block 16 to reset, so that the locking block 16 will be locked into the locking groove 11 inside the hollow post 10 for fixation. This achieves the effect of quick disassembly of the card plate 2 for easy maintenance of the internal components.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 novel HVAC silencer plenum chamber, comprising a chamber body (1), characterized in that: The box (1) has a baffle (3) slidably connected inside, a card plate (2) is fixedly connected to one side of the box (1), a handle (8) is fixedly connected to one side of the card plate (2), a coarse hole (4) is opened inside the baffle (3), a fine hole (5) is opened inside the baffle (3), and a guide component is provided inside the box (1) for guiding the airflow. The guiding component includes a guide plate (6), the outer wall of which is fixedly connected to the inside of the housing (1). The outer wall of the guide plate (6) is provided with a sound-absorbing layer (7). An air inlet (18) is provided inside the housing (1). A connecting component is provided on the side wall of the housing (1). The connecting component is used to connect the housing (1) and the card plate (2).

2. The novel HVAC silencer plenum chamber according to claim 1, characterized in that: The connecting assembly includes a hollow column (10), one end of which is fixedly connected to the side wall of the box (1), and a through hole is provided inside the box (1).

3. The novel HVAC silencer plenum chamber according to claim 2, characterized in that: The side wall of the card plate (2) is fixedly connected to a connecting post (9), which is slidably connected inside the through hole.

4. The novel HVAC silencer and static pressure box according to claim 3, characterized in that: The hollow column (10) has a slot (11) inside, and the connecting column (9) has a sliding groove (12) inside.

5. The novel HVAC silencer plenum chamber according to claim 4, characterized in that: The connecting column (9) is fixedly connected to a fixed column (13), and the fixed column (13) is slidably connected to a sliding column (14).

6. The novel HVAC silencer static pressure box according to claim 5, characterized in that: One end of the sliding column (14) is fixedly connected to a limiting plate (15), and the limiting plate (15) is slidably connected inside the sliding groove (12).

7. The novel HVAC silencer plenum chamber according to claim 6, characterized in that: A locking block (16) is fixedly connected to one side of the limiting plate (15), and the locking block (16) is slidably connected inside the locking groove (11).

8. The novel HVAC silencer plenum chamber according to claim 7, characterized in that: A spring (17) is fitted on the outer wall of the fixed column (13), and the two ends of the spring (17) are fixedly connected to the inside of the connecting column (9) and the limiting plate (15), respectively.

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