Noise reduction device for heat supply ventilation air conditioning system

Abstract

The utility model relates to the technical field of heat supply ventilation and air conditioning engineering, and discloses a noise reduction device for a heat supply ventilation air conditioning system, which comprises an outdoor unit heat dissipation shell, the front surface of the outdoor unit heat dissipation shell is open and is in contact with a sound insulation plate, the front surface of the sound insulation plate is provided with a heat dissipation opening, and the inner wall of the heat dissipation opening is fixedly connected with a heat dissipation plate. A sealing compensation assembly is arranged between the outdoor unit heat dissipation shell and the sound insulation plate and comprises a sealing strip, a movable groove is formed in the back face of the sound insulation plate, the sealing strip is arranged on the inner wall of the movable groove, and a guide rod is fixedly connected to the front face of the sealing strip. According to the sealing compensation assembly, sealing strip sawteeth and outdoor unit heat dissipation shell sawteeth are attached and sealed, when the sealing compensation assembly is abraded, the spring pushes the sealing strip to move, gaps are automatically compensated, it is ensured that the connecting position of the sound insulation plate and the outdoor unit heat dissipation shell is tight, the good sound insulation effect is kept for a long time, the sealing performance of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning engineering technology, and in particular to a noise reduction device for heating, ventilation and air conditioning systems. Background Technology

[0002] Currently, in heating, ventilation, and air conditioning systems, common noise reduction devices mainly consist of an outdoor unit heat sink casing, sound insulation panels, and sealing strips. The outdoor unit heat sink casing, as the main structure, is used to house and protect the outdoor unit and provide a mounting base for other components.

[0003] In existing noise reduction devices for heating, ventilation, and air conditioning systems, sound insulation panels are typically installed on the surface of the outdoor unit's heat exchange casing. A simple sealing strip seals the panel to the casing. During installation, the panel is placed directly at the opening of the heat exchange casing, ensuring the sealing strip contacts the casing, and then secured with bolts or other fasteners to block noise. While this method provides some initial noise reduction, problems gradually emerge with prolonged use.

[0004] Due to vibrations generated during the long-term operation of air conditioning systems and the influence of external environmental factors, the sealing strip between the sound insulation panel and the outdoor unit's heat dissipation casing gradually wears down, increasing the sealing gap. Existing noise reduction devices lack an effective sealing compensation mechanism and cannot automatically adjust and repair the sealing gaps caused by wear, making it easy for noise to leak through the gaps, significantly reducing the noise reduction effect, deteriorating the device's sealing performance, and shortening its service life. Therefore, a noise reduction device for heating, ventilation, and air conditioning systems is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a noise reduction device for heating, ventilation and air conditioning systems, which aims to improve the problems of easy wear and tear of sealing strips leading to sealing failure, poor noise reduction effect and short device life in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a noise reduction device for a heating, ventilation and air conditioning system, comprising an outdoor unit heat dissipation shell, the front of the outdoor unit heat dissipation shell being open and in contact with a sound insulation board, the front of the sound insulation board being provided with a heat dissipation vent, the inner wall of the heat dissipation vent being fixedly connected with a heat dissipation plate, and a sealing compensation component being provided between the outdoor unit heat dissipation shell and the sound insulation board.

[0007] The sealing compensation component includes a sealing strip. An activity groove is formed on the back surface of the sound insulation board. The inner wall of the activity groove is provided with a sealing strip. A guide rod is fixedly connected to the front surface of the sealing strip. The front surface of the guide rod movably penetrates through the inner wall of the activity groove and extends outward. A spring A is sleeved on the surface of the guide rod. One end of the spring A is fixedly connected to the back surface of the sealing strip, and the other end of the spring A is fixedly connected to the inner wall of the activity groove. A sawtooth B is formed on the back surface of the sealing strip, and a sawtooth A is formed at the front opening of the external machine heat dissipation shell. The sawtooth A and the sawtooth B are fitted. An installation component is arranged between the sound insulation boards.

[0008] As a further description of the above technical solution: The installation component includes a moving block. A limiting block is fixedly connected to the side surface of the moving block. Sliding grooves are respectively formed on both sides of the external machine heat dissipation shell. The limiting block is located inside the inner wall of the sliding groove. A spring B is fixedly connected to the inner wall of the limiting groove. One end of the spring B is fixedly connected to the inner wall of the limiting groove, and the other end of the spring B is fixedly connected to the back surface of the limiting block. Extension blocks are respectively fixedly connected to both sides of the external machine heat dissipation shell. A stud is threadedly connected to the inner walls of both the moving block and the extension block.

[0009] As a further description of the above technical solution: A knob is fixedly connected to the back surface of the stud.

[0010] As a further description of the above technical solution: Both the limiting block and the limiting groove are in a "T" shape, and the side surface of the moving block is slidably connected to the inner wall of the limiting groove through the limiting block.

[0011] As a further description of the above technical solution: A stop block is fixedly connected to the front surface of the guide rod, and the stop block is circular.

[0012] As a further description of the above technical solution: A sliding groove is formed on the front surface of the external machine heat dissipation shell. Sliding blocks are respectively fixedly connected to the top and bottom of the sound insulation board. The sound insulation board is slidably connected to the inner wall of the sliding groove through the sliding blocks.

[0013] As a further description of the above technical solution: A sound insulation pad is fixedly connected to the inner wall of the external machine heat dissipation shell.

[0014] As a further description of the above technical solution: Both the sealing strip and the activity groove are in a "hui" shape, and the outer wall of the sealing strip is slidably connected to the inner wall of the activity groove.

[0015] The utility model has the following beneficial effects:

[0016] 1. In this utility model, the sealing strip teeth are fitted and sealed with the outdoor unit heat dissipation shell teeth by the sealing compensation component. When wear occurs, the spring pushes the sealing strip to move, automatically compensating for the gap, ensuring that the connection between the sound insulation board and the outdoor unit heat dissipation shell is tight, maintaining a good sound insulation effect for a long time, and improving the sealing performance and service life of the device.

[0017] 2. In this utility model, the installation components are designed and a stable installation is achieved by using the elastic potential energy of a spring through the cooperation of knobs, studs, etc. During disassembly, the studs separate and the spring pushes the sound insulation plate to pop out. The operation is simple, no complicated tools are required, which facilitates equipment maintenance, improves the efficiency of installation and disassembly, and reduces maintenance costs. Attached Figure Description

[0018] Figure 1 This is a front view of a noise reduction device for a heating, ventilation and air conditioning system proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a sound insulation panel for a noise reduction device in a heating, ventilation and air conditioning system proposed in this utility model;

[0020] Figure 3 This is a side sectional view of a sound insulation panel for a noise reduction device used in a heating, ventilation and air conditioning system according to the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of the heat dissipation shell of the outdoor unit of a noise reduction device for a heating, ventilation and air conditioning system proposed in this utility model;

[0022] Figure 5 This is an enlarged view of point A of a noise reduction device for a heating, ventilation and air conditioning system proposed in this utility model;

[0023] Figure 6 This is a partial top sectional view of the heat dissipation shell of the outdoor unit of a noise reduction device for a heating, ventilation and air conditioning system proposed in this utility model.

[0024] Legend:

[0025] 1. Outdoor unit heat dissipation shell; 2. Sound insulation board; 3. Heat dissipation vent; 4. Slide groove; 5. Extension block; 6. Moving block; 7. Sawtooth A; 8. Slider; 9. Sawtooth B; 10. Sealing strip; 11. Movable groove; 12. Guide rod; 13. Spring A; 14. Stop block; 15. Sound insulation pad; 16. Limiting groove; 17. Spring B; 18. Limiting block; 19. Knob; 20. Stud. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1 , Figure 2 , Figure 4 This utility model provides an embodiment of a noise reduction device for a heating, ventilation, and air conditioning system, comprising an outdoor unit heat dissipation shell 1. The outdoor unit heat dissipation shell 1 serves as the main outer shell of the device, providing installation support for the internal structure. A sound insulation pad 15, made of sound-absorbing material, is fixedly connected to its inner wall, effectively absorbing noise generated during air conditioning operation and reducing noise transmission. The outdoor unit heat dissipation shell 1 has an opening on its front side that contacts a sound insulation board 2. The sound insulation board 2 can seal the opening to further block noise. A heat dissipation vent 3 is provided on the front side of the sound insulation board 2, ensuring sufficient heat dissipation during air conditioning operation. The heat dissipation is smooth, avoiding the impact of poor heat dissipation on the air conditioner's performance. A heat dissipation plate is fixedly connected to the inner wall of the heat dissipation port 3. The heat dissipation plate can enhance the heat dissipation effect and accelerate the heat dissipation speed. A sliding groove 4 is opened on the front of the outdoor unit heat dissipation shell 1. The sliding groove 4 provides a track for the sliding of the sound insulation plate 2. A slider 8 is fixedly connected to the top and bottom of the sound insulation plate 2. The slider 8 cooperates with the sliding groove 4 to allow the sound insulation plate 2 to slide smoothly on the outdoor unit heat dissipation shell 1, which is convenient for installation and disassembly. The sound insulation plate 2 is slidably connected to the inner wall of the sliding groove 4 through the slider 8. A sealing compensation component is provided between the outdoor unit heat dissipation shell 1 and the sound insulation plate 2.

[0028] Reference Figure 3 - Figure 5, the sealing compensation component includes a sealing strip 10 made of an elastic material, which can closely fit with the external machine heat dissipation shell 1 to play a sealing role. An activity groove 11 is opened on the back of the sound insulation board 2. The activity groove 11 provides space for the movement of the sealing strip 10, enabling the sealing strip 10 to expand and contract therein. A sealing strip 10 is provided on the inner wall of the activity groove 11. A guide rod 12 is fixedly connected to the front of the sealing strip 10. The guide rod 12 can guide the sealing strip 10 to move linearly in the activity groove 11, ensuring the stability of the expansion and contraction of the sealing strip 10. The front of the guide rod 12 movably penetrates the inner wall of the activity groove 11 and extends outward. A stop block 14 is fixedly connected to the front of the guide rod 12. The stop block 14 is circular, which can prevent the guide rod 12 from detaching from the activity groove 11 and limit the movement range of the guide rod 12. A spring A13 is sleeved on the surface of the guide rod 12. The spring A13 stores elastic potential energy when being compressed and releases the potential energy to push the sealing strip 10 to compensate for displacement after the sealing strip 10 is worn. One end of the spring A13 is fixedly connected to the back of the sealing strip 10, and the other end of the spring A13 is fixedly connected to the inner wall of the activity groove 11. Saw teeth B9 are opened on the back of the sealing strip 10, and the saw teeth B9 are engaged with the saw teeth A7 on the external machine heat dissipation shell 1 to enhance the sealing effect and prevent the sealing strip 10 from sliding. Saw teeth A7 are opened at the front opening of the external machine heat dissipation shell 1, and the saw teeth A7 are in contact with the saw teeth B9. Both the sealing strip 10 and the activity groove 11 are in the shape of a "hui" character, enabling the sealing strip 10 to seal the connection between the sound insulation board 2 and the external machine heat dissipation shell 1 in all directions. The outer wall of the sealing strip 10 is slidably connected to the inner wall of the activity groove 11. An installation component is provided between the sound insulation board 2 and the sound insulation board 2.

[0029] Refer to Figure 1 , Figure 6The installation components include a movable block 6, which assists in the installation and fixation of the sound insulation panel 2. It cooperates with the extension block 5 to secure the sound insulation panel 2 to the outdoor unit heat sink 1. A limiting block 18 is fixedly connected to the side of the movable block 6. The limiting block 18 cooperates with the limiting groove 16 to restrict the movement direction of the movable block 6 and ensure stable sliding. Limiting grooves 16 are respectively opened on both sides of the outdoor unit heat sink 1. The limiting grooves 16 provide sliding tracks for the limiting block 18, allowing the movable block 6 to move smoothly on the outdoor unit heat sink 1. The limiting block 18 is located on the inner wall of the limiting groove 16. Both the limiting block 18 and the limiting groove 16 are "T"-shaped to prevent the limiting block 18 from coming out of the limiting groove 16 and ensure connection stability. The side of the movable block 6 is slidably connected to the inner wall of the limiting groove 16 through the limiting block 18. The inner wall of the device is equipped with a spring B17. When the spring B17 is compressed during installation, the elastic force generated can make the moving block 6 press tightly against the sound insulation plate 2, thereby enhancing the stability of the installation. One end of the spring B17 is fixedly connected to the inner wall of the limiting groove 16, and the other end of the spring B17 is fixedly connected to the back of the limiting block 18. Extension blocks 5 are fixedly connected to both sides of the outdoor unit heat sink 1. The extension blocks 5 provide an installation position for the studs 20. By cooperating with the moving block 6, the sound insulation plate 2 is fastened. The inner walls of the moving block 6 and the extension blocks 5 are threaded with studs 20. The studs 20 tighten the moving block 6 and the extension blocks 5 through the threaded connection, thereby fixing the sound insulation plate 2. A knob 19 is fixedly connected to the back of the studs 20. The knob 19 makes it convenient for the operator to rotate the studs 20 to realize the installation and removal of the sound insulation plate 2.

[0030] Working principle: When using this noise reduction device, the installation operation is performed. First, align the slider 8 of the sound insulation plate 2 with the slide groove 4 of the outdoor unit heat sink 1, and push the sound insulation plate 2 along the direction of the slide groove 4 so that the sound insulation plate 2 gradually approaches the front opening of the outdoor unit heat sink 1. During the pushing process, the serrations B9 on the sealing strip 10 gradually come into contact with the serrations A7 at the opening of the outdoor unit heat sink 1. As the sound insulation plate 2 continues to be pushed forward, the sealing strip 10 enters the movable groove 11 and compresses the spring A13. At the same time, the guide rod 12 slides in the movable groove 11, providing guidance and limiting for the movement of the sealing strip 10. After the sound insulation plate 2 is installed in place, the knob 19 is turned, and the knob 19 drives the stud 20 to rotate. The stud 20 moves on the inner wall of the extension block 5 and the moving block 6, gradually pulling the moving block 6 closer to the extension block 5. Since the spring B17 is in a taut state, under the action of the lateral elastic potential energy of the spring B17, the moving block 6 is pulled. The moving block 6 slides in the limiting groove 16 through the limiting block 18 and is continuously taut by the spring B17, making the sound insulation pad 15 fit more tightly with the outdoor unit heat sink 1, further enhancing the sound insulation effect.

[0031] At the same time, the elastic potential energy generated by the compression of spring A13 pushes the sealing strip 10 to fit tightly against the opening of the outdoor unit heat sink 1, playing a secondary sealing compensation role and effectively preventing noise from leaking from the connection between the sound insulation plate 2 and the outdoor unit heat sink 1.

[0032] When the noise reduction device needs to be disassembled, turn knob 19. Knob 19 drives stud 20 to rotate, and stud 20 moves along the inner walls of extension block 5 and moving block 6 until stud 20 separates from the internal threads of extension block 5. At this time, because spring A13 is in a compressed state, under the action of the lateral elastic potential energy of spring A13, the sound insulation plate 2 and slider 8 are pushed outward from the slide groove 4, realizing the quick disassembly of sound insulation plate 2, which facilitates the maintenance of the air conditioner outdoor unit or the repair of the noise reduction device.

[0033] 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 noise reduction device for a heating, ventilation and air conditioning system, comprising an outdoor unit heat dissipation shell (1), characterized in that: The front of the external machine heat dissipation shell (1) is open and contacts a sound insulation board (2). A heat dissipation port (3) is opened on the front of the sound insulation board (2). A heat dissipation plate is fixedly connected to the inner wall of the heat dissipation port (3). A sealing compensation component is arranged between the external machine heat dissipation shell (1) and the sound insulation board (2); The sealing compensation component includes a sealing strip (10). A movable groove (11) is opened on the back of the sound insulation board (2). The sealing strip (10) is arranged on the inner wall of the movable groove (11). A guide rod (12) is fixedly connected to the front of the sealing strip (10). The front of the guide rod (12) movably penetrates through the inner wall of the movable groove (11) and extends outwards. A spring A (13) is sleeved on the surface of the guide rod (12). One end of the spring A (13) is fixedly connected to the back of the sealing strip (10). The other end of the spring A (13) is fixedly connected to the inner wall of the movable groove (11). A sawtooth B (9) is opened on the back of the sealing strip (10). A sawtooth A (7) is opened at the front opening of the external machine heat dissipation shell (1). The sawtooth A (7) is in fit with the sawtooth B (9). An installation component is arranged between the sound insulation board (2) and the sound insulation board (2).

2. The noise reduction device for a heating, ventilation and air conditioning system according to claim 1, characterized in that: The installation component includes a moving block (6). A limiting block (18) is fixedly connected to the side of the moving block (6). Limiting grooves (16) are respectively opened on both sides of the external machine heat dissipation shell (1). The limiting block (18) is located in the inner wall of the limiting groove (16). A spring B (17) is arranged on the inner wall of the limiting groove (16). One end of the spring B (17) is fixedly connected to the inner wall of the limiting groove (16). The other end of the spring B (17) is fixedly connected to the back of the limiting block (18). Extension blocks (5) are respectively fixedly connected to both sides of the external machine heat dissipation shell (1). A stud (20) is threadedly connected to the inner walls of both the moving block (6) and the extension block (5).

3. A noise reduction device for a heating, ventilation, and air conditioning system according to claim 2, characterized in that: A knob (19) is fixedly connected to the back of the stud (20).

4. A noise reduction device for a heating, ventilation and air conditioning system according to claim 2, characterized in that: Both the limiting block (18) and the limiting groove (16) are in a "T" shape. The side of the moving block (6) is slidably connected to the inner wall of the limiting groove (16) through the limiting block (18).

5. A noise reduction device for a heating, ventilation, and air conditioning system according to claim 1, characterized in that: A stop block (14) is fixedly connected to the front of the guide rod (12). The stop block (14) is circular.

6. A noise reduction device for a heating, ventilation and air conditioning system according to claim 1, characterized in that: A sliding groove (4) is opened on the front of the external machine heat dissipation shell (1). Sliding blocks (8) are respectively fixedly connected to the top and bottom of the sound insulation board (2). The sound insulation board (2) is slidably connected to the inner wall of the sliding groove (4) through the sliding blocks (8).

7. A noise reduction device for a heating, ventilation and air conditioning system according to claim 1, characterized in that: A sound insulation pad (15) is fixedly connected to the inner wall of the external machine heat dissipation shell (1).

8. A noise reduction device for a heating, ventilation and air conditioning system according to claim 1, characterized in that: Both the sealing strip (10) and the movable groove (11) are in a "hui" shape. The outer wall of the sealing strip (10) is slidably connected to the inner wall of the movable groove (11).

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