Silencing structure of automobile air conditioner pipeline

Abstract

The utility model discloses a silencing structure of an automobile air conditioner pipeline, and relates to the technical field of air conditioner pipelines. The automobile air conditioner pipe noise reduction device comprises a noise reduction structure and an automobile air conditioner pipe, the noise reduction structure comprises two pieces of opposite sound absorption cotton, two opposite sound insulation plates, two opposite semicircular mounting plates, two opposite arc-shaped rings and a fixing plate, and the sound absorption cotton is arranged on the outer wall of the automobile air conditioner pipe in a sleeving mode. The sound-absorbing cotton and the sound-insulating plate on each same side are fixedly connected through glue, the sound-insulating plate on each same side is mounted on the semicircular mounting plate through glue, the arc-shaped rings are arranged on the outer side of the semicircular mounting plate, and the fixing plates are fixedly mounted at the upper ends and the lower ends of the two arc-shaped rings; noise generated by the automobile air conditioner pipe is absorbed through the sound-absorbing cotton, then the noise is further blocked from spreading through the sound-insulating plate, and the noise is prevented from spreading to the surrounding environment to affect conversation, rest, entertainment and accidents of people in an automobile.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning pipeline technology, specifically to a noise reduction structure for automotive air conditioning pipelines. Background Technology

[0002] Automotive air conditioning piping is an important component of the automotive air conditioning system. It is responsible for connecting the various components of the air conditioning system to form a closed system, allowing the refrigerant to circulate within the system, thereby achieving the cooling function of the air conditioner. The air conditioning piping mainly consists of aluminum pipes, connectors, air conditioning hoses, air conditioning corrugated pipes, aluminum sleeves, filling ports, sight glasses, pressure switches, O-rings, and plastic caps.

[0003] When a car's air conditioning system is operating, the refrigerant inside the pipes flows at high speed, causing friction and collisions with the inner walls of the pipes, resulting in vibration and noise. Furthermore, the operation of the compressor and the opening and closing of valves also cause pipe vibration, further exacerbating the noise. This noise not only interferes with conversation, rest, and entertainment for passengers, but also easily affects the driver's attention, potentially leading to safety accidents. Utility Model Content

[0004] To address the problem that car air conditioners generate noise during operation, interfering with conversations and rest for passengers, and potentially affecting the driver's attention and causing safety accidents, the purpose of this utility model is to provide a noise reduction structure for car air conditioning pipes.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a noise reduction structure for an automotive air conditioning pipe, comprising a noise reduction structure and an automotive air conditioning pipe. The noise reduction structure includes two sound-absorbing cottons facing each other, two sound insulation plates facing each other, two semi-circular mounting plates facing each other, two arc-shaped rings facing each other, and a fixing plate. The sound-absorbing cottons are sleeved on the outer wall of the automotive air conditioning pipe. The sound-absorbing cottons and sound insulation plates on the same side are fixedly connected by glue. The sound insulation plates on the same side are mounted on the semi-circular mounting plates by glue. The arc-shaped rings are located on the outer side of the semi-circular mounting plates. Fixing plates are fixedly installed at the upper and lower ends of the two arc-shaped rings. The fixing plates are located at the edges of the arc-shaped rings. Each fixing plate has a through bolt hole.

[0006] Preferably, each of the arc-shaped rings has several evenly distributed ring-shaped locking blocks fixedly installed on its inner wall, and each of the semi-circular mounting plates has a locking groove on the side away from the sound insulation plate that cooperates with the locking blocks.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. This application uses sound-absorbing cotton to absorb the noise generated by the car's air conditioning pipes, and then uses sound insulation panels to further block the transmission of noise, thus preventing the noise from spreading to the surrounding environment and affecting the conversation, rest, and entertainment of people in the car, and preventing accidents.

[0009] 2. This application facilitates the replacement of sound insulation panels, sound-absorbing cotton, and semi-circular mounting plates. It eliminates the need to remove the sound insulation panels from the semi-circular mounting plates and remove any remaining sound insulation panels before replacing them with new ones, thus improving replacement efficiency. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.

[0013] Figure 3 This utility model Figure 3 Enlarged view of point A in the middle.

[0014] In the diagram: 1. Noise-absorbing structure; 11. Sound-absorbing cotton; 12. Sound insulation board; 13. Semi-circular mounting plate; 14. Arc ring; 15. Fixing plate; 16. Bolt hole; 2. Car air conditioning pipe; 3. Clip; 31. Slot; 4. Threaded rod; 41. Rotary wheel; 5. Buffer structure; 50. Fixing seat; 51. Disc; 52. Buffer spring; 53. Mounting block; 6. Telescopic rod. Detailed Implementation

[0015] 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.

[0016] Example: Figure 1-3As shown, this utility model provides a noise reduction structure for an automotive air conditioning pipe, including a noise reduction structure 1 and an automotive air conditioning pipe 2. The noise reduction structure 1 includes two opposing sound-absorbing cotton 11s, two opposing sound insulation plates 12s, two opposing semi-circular mounting plates 13s, two opposing arc rings 14s, and a fixing plate 15. The sound-absorbing cotton 11s are fitted onto the outer wall of the automotive air conditioning pipe 2. The sound-absorbing cotton 11s and the sound insulation plates 12s on the same side are fixedly connected by adhesive. The sound insulation plates 12s on the same side are mounted on the semi-circular mounting plates 13s by adhesive. The arc rings 14s are located on the outer side of the semi-circular mounting plates 13s. Each arc ring 14 has a fixed plate 15 fixedly installed at both the upper and lower ends. The fixed plate 15 is located at the edge of the arc ring 14. Each fixed plate 15 has a bolt hole 16 through it. The sound-absorbing structure 1 can be installed on the pipeline near the compressor, the pipeline around the expansion valve, or other places. The appropriate installation location can be selected according to the actual situation. The sound insulation board 12 can be made of butyl rubber sound insulation board, high-density polyurethane foam sound insulation board, or other materials. The sound-absorbing cotton 11 can be made of polyester fiber sound-absorbing cotton or other materials. The materials of the sound insulation board 12 and the sound-absorbing cotton 11 can be selected according to the actual situation.

[0017] Each arc ring 14 has several evenly distributed ring-shaped locking blocks 3 fixedly installed on its inner wall, and each semi-circular mounting plate 13 has a slot 31 on the side away from the sound insulation plate 12 that is used to cooperate with the locking blocks 3.

[0018] The upper and lower fixing plates 15 are threaded with threaded rods 4 in the middle. The threaded rods 4 are threaded to the other upper and lower fixing plates 15. A rotating wheel 41 is fixedly installed at one end of the threaded rod 4. By setting the threaded rod 4, when it is necessary to install the sound-absorbing cotton 11, sound insulation board 12, semi-circular mounting plate 13, and arc ring 14 on the outside of the car air conditioning pipe 2, the sound-absorbing cotton 11 in opposite positions is first put on the outside of the car air conditioning pipe 2, and the two upper fixing plates 15 are in contact with each other, and the two lower fixing plates 15 are in contact with each other. Then, the upper rotating wheel 41 is rotated, which drives the threaded rod 4 to rotate. Since the threaded rod 4 is threaded to one of the upper fixing plates 15, the threaded rod 4 will slowly move closer to the other upper fixing plate 15. Then, because the threaded rod 4 is threaded to the other upper fixing plate 15, the two upper fixing plates 15 are initially fixed. The two lower fixing plates 15 are operated in the same way, which makes it easier to fix the bolts later.

[0019] The outside of the rotating wheel 41 is fixedly equipped with several annularly distributed anti-slip strips. By setting the anti-slip strips, the friction between the operator's hand and the rotating wheel 41 is increased, making it easier to rotate the rotating wheel 41 and drive the threaded rod 4 to rotate.

[0020] One of the arc rings 14 has a buffer structure 5 on the side away from the locking block 3. The buffer structure 5 includes a fixing seat 50, which is fixedly connected to the arc ring 14. A disc 51 is fixedly installed on the side of the fixing seat 50 away from the arc ring 14. A buffer spring 52 is fixedly installed on the side of the disc 51 away from the fixing seat 50. An mounting block 53 is fixedly installed on the side of the buffer spring 52 away from the disc 51. The mounting block 53 is connected to the vehicle body. By setting the buffer structure 5, when the car vibrates during driving, causing the car air conditioning pipe 2 to vibrate, the buffer spring 52 will undergo elastic deformation, absorbing part of the vibration energy, thereby reducing the additional noise generated by the vibration and further improving the noise reduction effect. The buffer structure 5 can be installed on both arc rings 14 or only one of them, depending on the actual situation. In addition, the number of buffer structures 5 can be selected according to the actual situation.

[0021] A telescopic rod 6 is fixedly installed between the disc 51 and the mounting block 53. The telescopic rod 6 is located inside the buffer spring 52. By setting the telescopic rod 6, when the buffer spring 52 is contracted, the telescopic rod 6 will also extend and retract accordingly, thereby making the buffer spring 52 more stable when it is contracted.

[0022] The adhesive between the sound-absorbing cotton 11 and the sound insulation board 12, as well as the adhesive between the semi-circular mounting plate 13 and the sound insulation board 12, can be neoprene rubber adhesive or epoxy resin adhesive, which have good adhesion and can firmly connect the sound-absorbing cotton 11, the sound insulation board 12, and the semi-circular mounting plate 13 together, ensuring that the components will not separate during long-term use. In addition to adhesive, other strong adhesives can also be selected to fix the sound-absorbing cotton 11 and the sound insulation board 12, as well as the semi-circular mounting plate 13 and the sound insulation board 12, between the sound-absorbing cotton 11 and the sound insulation board 12, and between the semi-circular mounting plate 13 and the sound insulation board 12.

[0023] Working principle: In actual use, during the operation of the car air conditioner, the flow of refrigerant in the car air conditioning pipe 2 and the operation of the compressor will generate noise. At this time, the sound-absorbing structure 1 begins to play its role. The sound-absorbing cotton 11, which is fitted on the outer wall of the car air conditioning pipe 2, can absorb some of the noise. Because the material of the sound-absorbing cotton 11 (such as polyester fiber sound-absorbing cotton) has a porous structure, after the noise wave enters the pores of the sound-absorbing cotton 11, it will be continuously reflected and rubbed in the pores, converting the sound energy into heat energy and other forms of energy, thereby consuming the noise energy and reducing the noise intensity. At the same time, the sound insulation board 12 also plays an important role. The sound insulation board 12 (such as butyl rubber sound insulation board, high-density polyurethane foam sound insulation board, etc.) has high density and damping characteristics, which can block the transmission of noise. It can block the noise that the sound-absorbing cotton 11 cannot completely absorb, reducing the diffusion of noise to the surrounding environment.

[0024] When the sound-absorbing structure 1 needs to be installed on the car air conditioning pipe 2, firstly, the sound-absorbing cotton 11 and the sound insulation board 12 on both sides are glued together. Then, the sound insulation board 12 is glued to the semi-circular mounting plate 13. Then, the slot 31 on the semi-circular mounting plate 13 is aligned with the block 3 on the inner wall of the arc ring 14, and the block 3 is inserted into the slot 31, thereby installing the arc ring 14 and the semi-circular mounting plate 13 together. After both sides are installed, the sound-absorbing cotton 11 on one side is attached to one side of the outer wall of the car air conditioning pipe 2. Then, the sound-absorbing cotton 11 on the other side is attached to the other side of the outer wall of the car air conditioning pipe 2. The two upper fixing plates 15 and the two lower fixing plates 15 are attached together. Then, the initial installation is achieved by rotating the threaded rod 4. Finally, it is reinforced by bolts.

[0025] When it is necessary to replace the sound-absorbing cotton 11 and the sound insulation board 12, rotate the bolts and threaded rods 4 in the opposite direction to separate the upper and lower fixing plates 15, and prevent the sound-absorbing cotton 11 from adhering to the car air conditioning pipe 2. Note that it is not necessary to completely remove the bolts and threaded rods 4 from the fixing plates 15. Then pull the semi-circular mounting plate 13 out of the arc ring 14 to replace the sound-absorbing cotton 11 and the sound insulation board 12. Note that the semi-circular mounting plate 13 also needs to be replaced. Later, the sound insulation board 12 can be removed from the semi-circular mounting plate 13. After cleaning the residual glue on the semi-circular mounting plate 13 and the sound insulation board 12, it can be reused.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A noise reduction structure for an automotive air conditioning pipe, comprising a noise reduction structure (1) and an automotive air conditioning pipe (2), characterized in that: The sound-absorbing structure (1) includes two sound-absorbing cotton (11) facing each other, two sound insulation plates (12) facing each other, two semi-circular mounting plates (13) facing each other, two arc rings (14) facing each other, and a fixing plate (15). The sound-absorbing cotton (11) is sleeved on the outer wall of the car air conditioning pipe (2). The sound-absorbing cotton (11) and the sound insulation plate (12) on the same side are fixedly connected by glue. The sound insulation plate (12) on the same side is installed on the semi-circular mounting plate (13) by glue. The arc ring (14) is set on the outside of the semi-circular mounting plate (13). The upper and lower ends of the two arc rings (14) are fixedly installed with fixing plates (15). The fixing plates (15) are located at the edge of the arc rings (14). Each fixing plate (15) has a bolt hole (16) through it.

2. The noise reduction structure for an automotive air conditioning pipe as described in claim 1, characterized in that, Each of the arc rings (14) has several evenly distributed ring-shaped locking blocks (3) fixedly installed on its inner wall. Each of the semicircular mounting plates (13) has a slot (31) on the side away from the sound insulation plate (12) that is used in conjunction with the locking blocks (3).

3. The noise reduction structure for an automotive air conditioning pipe as described in claim 1, characterized in that, The middle part of the upper and lower fixed plates (15) is threaded with threaded rods (4), which are threaded to the other upper and lower fixed plates (15). A rotating wheel (41) is fixedly installed at one end of the threaded rod (4).

4. The noise reduction structure for an automotive air conditioning pipe as described in claim 3, characterized in that, The wheel (41) is fixedly installed with several annularly distributed anti-slip strips.

5. The noise reduction structure for an automotive air conditioning pipe as described in claim 2, characterized in that, One of the arc rings (14) has a buffer structure (5) on the side away from the locking block (3). The buffer structure (5) includes a fixed seat (50), which is fixedly connected to the arc ring (14). A disc (51) is fixedly installed on the side of the fixed seat (50) away from the arc ring (14). A buffer spring (52) is fixedly installed on the side of the disc (51) away from the fixed seat (50). An mounting block (53) is fixedly installed on the side of the buffer spring (52) away from the disc (51). The mounting block (53) is connected to the vehicle body.

6. The noise reduction structure for an automotive air conditioning pipe as described in claim 5, characterized in that, A telescopic rod (6) is fixedly installed between the disc (51) and the mounting block (53), and the telescopic rod (6) is located inside the buffer spring (52).

7. The noise reduction structure for an automotive air conditioning pipe as described in claim 1, characterized in that, The adhesive between the sound-absorbing cotton (11) and the sound insulation board (12) and the adhesive between the sound-absorbing cotton (11) and the sound insulation board (12) can be made of neoprene rubber adhesive or epoxy resin adhesive.

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