Waterproof and breathable silencing bag for air supply unit of air suspension

Abstract

The utility model provides a waterproof breathable air suspension air supply unit silencing bag which comprises a first shell set, a second shell set and a waterproof breathable valve arranged on the first shell set or the second shell set, and the first shell set and the second shell set are in butt joint to form an installation space for containing an air suspension air supply unit. The waterproof ventilation valve achieves ventilation between the installation space and the outside and prevents water from entering the installation space, and the air suspension air supply unit is fixedly connected with the first shell set or the second shell set. The waterproof ventilation valve is arranged on the silencing bag, the effects of isolating moisture and keeping ventilation can be achieved, compared with an existing silencing bag provided with small ventilation holes, the silencing bag has the better ventilation, ventilation and waterproof effects, the situation that the interior of the silencing bag is moist and mildewed is prevented, and then the NVH performance is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive air suspension systems, specifically to a waterproof and breathable air suspension supply unit noise reduction package. Background Technology

[0002] The air suspension air supply unit is arranged as follows: the air compressor assembly is installed in a metal or plastic housing (usually called a soundproof enclosure) through a damping unit (usually called a primary damping unit). The housing is then connected to the vehicle body through another damping unit (usually called a secondary damping unit). The primary and secondary damping units are mainly used to isolate the vibration of the air compressor assembly during operation.

[0003] Traditional sound mufflers typically have holes in their housings for ventilation. However, after the air suspension air supply unit has been in operation for a long time, moisture in the air and water seepage during vehicle operation can cause the inside of the sound muffler to become damp and moldy, thus affecting the NVH performance of the sound muffler.

[0004] In summary, there is an urgent need for a waterproof and breathable air suspension air supply unit noise reduction package to solve the problems existing in the current technology. Utility Model Content

[0005] The purpose of this utility model is to provide a waterproof and breathable air suspension air supply unit noise muffler, aiming to solve the problem of existing noise mufflers where moisture seeps into the interior, leading to dampness and mold, which affects the NVH performance of the noise muffler. The specific technical solution is as follows:

[0006] A waterproof and breathable air suspension supply unit noise reduction package includes a first shell assembly, a second shell assembly, and a waterproof and breathable valve disposed on the first or second shell assembly. The first and second shell assemblies are connected to form an installation space for accommodating the air suspension supply unit. The waterproof and breathable valve enables air circulation between the installation space and the outside air and prevents moisture from entering the installation space. The air suspension supply unit is fixedly connected to the first or second shell assembly.

[0007] The preferred embodiment of the above technical solution also includes a mounting bracket; the air suspension air supply unit is installed on the inner side of the second shell group or the first shell group via a vibration damping bolt assembly one, and the mounting bracket is installed on the outer side of the second shell group or the first shell group via a vibration damping bolt assembly two.

[0008] In the preferred embodiment of the above technical solution, the first shell assembly includes a first shell and a first inner liner disposed on the inner wall of the first shell, the second shell assembly includes a second shell and a second inner liner disposed on the inner wall of the second shell, and the mating end of the first shell and the mating end of the second shell are connected by bolts.

[0009] In the preferred embodiment of the above technical solution, between the mating end of the first housing and the mating end of the second housing, the outer mating end is provided with multiple mounting holes along the circumference, and the inner mating end is provided with multiple internal threaded connection parts along the circumference; after the two mating ends are mated, a bolt is passed through the mounting holes and threadedly connected to the internal threaded connection parts.

[0010] In the preferred embodiment of the above technical solutions, the internal thread connection part is an internal thread hole, or a through hole and a fixing nut arranged on the same axis.

[0011] In the preferred embodiment of the above technical solutions, both the first inner liner and the second inner liner are made of polyester foam material.

[0012] In the preferred embodiment of the above technical solution, the first or second shell assembly is provided with a locking hole. The waterproof and breathable valve includes a valve seat, a waterproof and breathable membrane, and a locking post. The locking post is disposed on the valve seat, and the two together form a valve body with a T-shaped structure. After the locking post is inserted into the locking hole, it is limited by the locking foot at the lower end of the locking post. The valve body is provided with a connecting channel. One end of the connecting channel is connected to the interior of the installation space, and the other end is connected to the outside. The waterproof and breathable membrane is disposed in the connecting channel.

[0013] In a preferred embodiment of the above technical solutions, the waterproof and breathable valve further includes a sealing ring, which is fitted onto the retaining post; after the retaining post is limited, the sealing ring seals the valve seat with respect to the first housing assembly or the second housing assembly.

[0014] In a preferred embodiment of the above technical solutions, the first or second housing assembly is provided with a mounting cavity, the locking hole is disposed in the mounting cavity, and the mounting cavity is used to accommodate the valve seat.

[0015] In the preferred embodiment of the above technical solution, the connecting channel includes a venting cavity and a venting channel. The valve seat is provided with the venting cavity, and the valve seat is provided with multiple vents in the circumferential direction that connect the venting cavity and the outside. The locking post is provided with a venting channel. One end of the venting channel is connected to the installation space, and the other end is connected to the venting cavity. The waterproof and breathable membrane is disposed at the junction of the venting cavity and the venting channel.

[0016] The application of the technical solution of this utility model has the following beneficial effects:

[0017] This invention features a waterproof and breathable valve on the sound-absorbing enclosure, which effectively isolates moisture while maintaining breathability. Compared to existing sound-absorbing enclosures with ventilation holes, this invention provides better ventilation, breathability, and waterproofing, preventing dampness and mold growth inside the enclosure and thus improving NVH (Noise, Vibration, Harshness) performance.

[0018] The waterproof and breathable valve of this utility model includes a sealing ring. After the locking pin is limited, the sealing ring is pressed between the first shell assembly or the second shell assembly and the valve seat, thereby sealing the valve seat with the first shell assembly or the second shell assembly and preventing moisture from seeping into the sound-absorbing bag. At the same time, since the sealing ring is in a compressed state, it can generate an elastic force on the valve seat, so that the locking pin tightly abuts against the shell around the locking hole, ensuring that the waterproof and breathable valve will not loosen after installation.

[0019] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 This is a first-view axonometric view of the sound-absorbing package of the waterproof and breathable air suspension supply unit of this utility model.

[0022] Figure 2 yes Figure 1 A schematic diagram of the structure hidden behind the first shell assembly;

[0023] Figure 3 yes Figure 1 Schematic diagram of the structure of the first shell group in the middle;

[0024] Figure 4 This is a schematic diagram showing the installation between the waterproof and breathable valve and the first housing assembly;

[0025] Figure 5 This is a second-view axonometric drawing of the sound-absorbing package of the waterproof and breathable air suspension supply unit of this utility model.

[0026] Among them, 1. Waterproof and breathable valve, 1.1. Valve seat, 1.2. Waterproof and breathable membrane, 1.3. Breathable cavity, 1.4. Breathable port, 1.5. Sealing ring, 1.6. Locking post, 1.7. Breathable channel, 1.8. Locking foot, 2. First housing, 2.1. Mounting cavity, 2.2. Locking hole, 3. Second housing, 4. Mounting bracket, 5. Second inner liner, 6. Air suspension air supply unit, 7. Vibration damping bolt assembly one, 8. Vibration damping bolt assembly two, 9. First inner liner, 10. Internal threaded connection part, 11. Mounting hole. Detailed Implementation

[0027] To facilitate understanding of this invention, a more comprehensive description is provided below, along with preferred embodiments. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0029] Example:

[0030] See Figures 1-5 This embodiment provides a waterproof and breathable air suspension air supply unit noise reduction package, including a first shell group, a second shell group, and a waterproof and breathable valve 1 disposed on the first shell group or the second shell group. The first shell group and the second shell group are connected to form an installation space for accommodating the air suspension air supply unit 6. That is, the first shell group and the second shell group enclose the air suspension air supply unit 6 in the installation space. The waterproof and breathable valve 1 enables the installation space to circulate with the outside air and prevents moisture from entering the installation space. The air suspension air supply unit 6 is fixedly connected to the first shell group or the second shell group.

[0031] Furthermore, the muffler package also includes a mounting bracket 4, which is used to mount the muffler package onto the vehicle chassis. The air suspension supply unit 6 is mounted on the inner side of the second housing or the first housing via a damping bolt assembly 7, and the mounting bracket 4 is mounted on the outer side of the second housing or the first housing via a damping bolt assembly 8. Both the damping bolt assembly 7 and the damping bolt assembly 8 are existing technologies and can be purchased directly; therefore, they are not described in detail in this embodiment. The damping bolt assembly 7 is the primary damping, and the damping bolt assembly 8 is the secondary damping. The primary and secondary damping effectively buffer the vibrations generated by the air suspension supply unit during operation.

[0032] Specifically, in this embodiment, the air suspension air supply unit 6 is mounted on the inner side of the second housing assembly via a damping bolt assembly 7, and the mounting bracket 4 is mounted on the outer side of the second housing assembly via a damping bolt assembly 8. In some cases, the air suspension air supply unit 6 and the mounting bracket 4 may be mounted on different housing assemblies. Those skilled in the art can adjust them according to design requirements, and this embodiment will not list them one by one.

[0033] See Figure 2 and Figure 3The first shell assembly includes a first shell 2 and a first inner liner 9 disposed on the inner wall of the first shell 2. The second shell assembly includes a second shell 3 and a second inner liner 5 disposed on the inner wall of the second shell 3. The mating end of the first shell 2 and the mating end of the second shell 3 are connected by bolts.

[0034] Specifically, between the docking end of the first housing 2 and the docking end of the second housing 3, one docking end is inserted into the other docking end to achieve docking. The docking end located on the outer side is provided with multiple mounting holes 11 along the circumference, and the docking end located on the inner side is provided with multiple internal threaded connection parts 10 along the circumference. After the two docking ends are docked, a bolt is passed through the mounting holes 11 and threadedly connected to the internal threaded connection parts 10.

[0035] Preferably, in order to achieve smooth docking of the two docking ends, a clearance fit should be set between the inner diameter of one docking end and the outer diameter of the other docking end to allow one docking end to be smoothly embedded (inserted) into the interior of the other docking end.

[0036] See Figure 2 and Figure 3 In this embodiment, the first housing 2 is provided with an internal threaded connection part 10, and the second housing 3 is provided with a mounting hole 11. After the mating end of the first housing 2 is embedded in the mating end of the second housing 3, the first housing 2 and the second housing 3 are fixed together by bolts.

[0037] Preferably, the internally threaded connection part is an internally threaded hole, or a through hole and a fixing nut arranged coaxially. Specifically, when the internally threaded connection part is an internally threaded hole, the internally threaded hole can be directly formed on the mating end of the housing; when the internally threaded connection part is a through hole and a fixing nut arranged coaxially, the through hole is first formed on the mating end of the housing, and then the fixing nut is welded to the inner side of the mating end of the housing, thus achieving a threaded connection with the bolt.

[0038] Preferably, the first inner liner 9 and the second inner liner 5 are both made of polyester foam material, which can effectively reduce working noise.

[0039] Furthermore, the first or second shell assembly is provided with a locking hole 2.2, such as... Figure 4 As shown, Figure 4The illustration shows a locking hole 2.2 on the first housing assembly. The waterproof and breathable valve 1 includes a valve seat 1.1, a waterproof and breathable membrane 1.2, and a locking post 1.6. The locking post 1.6 is disposed on the valve seat 1.1, and the two together form a valve body with a T-shaped cross-section along the axis of the locking post. After the locking post 1.6 is inserted into the locking hole 2.2, it is limited by the locking foot 1.8 at the lower end of the locking post 1.6. The valve body has a communicating channel, one end of which connects to the interior of the installation space, and the other end connects to the outside. The waterproof and breathable membrane 1.2 is disposed in the communicating channel. Specifically, the waterproof and breathable membrane 1.2 itself has waterproof and breathable effects, which can realize the airflow between the installation space and the outside and prevent moisture from the outside from entering the installation space. The waterproof and breathable membrane 1.2 is prior art, and will not be described in detail in this embodiment.

[0040] Preferably, the waterproof and breathable valve 1 further includes a sealing ring 1.5, which is sleeved on the retaining post 1.6; after the retaining post 1.6 is limited, the sealing ring 1.5 is pressed between the first shell assembly or the second shell assembly and the valve seat 1.1, thereby achieving a seal between the valve seat 1.1 and the first shell assembly or the second shell assembly.

[0041] Preferably, the first or second housing assembly is provided with a mounting cavity 2.1, and the locking hole 2.2 is disposed in the mounting cavity 2.1. The mounting cavity 2.1 is used to accommodate the valve seat 1.1 to prevent the valve seat 1.1 from protruding relative to the surface of the housing assembly.

[0042] Preferably, the communication channel includes a venting cavity 1.3 and a venting channel 1.7. The valve seat 1.1 is provided with the venting cavity 1.3, and the valve seat 1.1 is provided with a plurality of vents 1.4 in the circumferential direction to connect the venting cavity 1.3 and the outside. The locking post 1.6 is provided with a venting channel 1.7. One end of the venting channel 1.7 is connected to the installation space, and the other end is connected to the venting cavity 1.3. The waterproof and breathable membrane 1.2 is disposed at the junction of the venting cavity 1.3 and the venting channel 1.7.

[0043] Specifically, in this embodiment, the waterproof and breathable valve 1 is disposed on the first housing 2 of the first housing assembly. The first housing 2 is provided with an installation cavity 2.1 and a locking hole 2.2. The sealing ring 1.5 is pressed between the bottom of the installation cavity 2.1 and the valve seat 1.1 to achieve a sealing effect. In addition, since the sealing ring 1.5 is elastic, it provides an elastic force on the valve seat 1.1 after being pressed, so that the locking foot 1.8 tightly abuts against the housing around the locking hole 2.2, ensuring that the waterproof and breathable valve will not loosen after installation.

[0044] Preferably, the outer diameter of the locking foot 1.8 is larger than the diameter of the locking hole 2.2, and the locking foot 1.8 can undergo elastic deformation. On the one hand, the locking foot 1.8 can pass through the locking hole 2.2, and on the other hand, after the locking foot 1.8 deforms and recovers, it abuts against the shell around the locking hole 2.2 to achieve the effect of limiting the position.

[0045] Preferably, the outer diameter of the locking post 1.6 and the diameter of the locking hole 2.2 can be achieved by an interference fit or a transition fit, which can make the locking post 1.6 and the locking hole 2.2 relatively secure and prevent the waterproof and breathable valve from loosening after installation.

[0046] Preferably, in some embodiments, two or more waterproof and breathable valves 1 may be provided on the first shell group or the second shell group; similarly, in some embodiments, waterproof and breathable valves may be provided on both the first shell group and the second shell group, thereby increasing the airflow inside the sound-absorbing bag.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waterproof and breathable air suspension air supply unit noise reduction package, characterized in that, It includes a first shell group, a second shell group, and a waterproof and breathable valve (1) disposed on the first shell group or the second shell group. The first shell group and the second shell group are connected to form an installation space for accommodating the air suspension supply unit (6). The waterproof and breathable valve (1) enables the installation space to circulate with the outside air and prevents moisture from entering the installation space. The air suspension supply unit (6) is fixedly connected to the first shell group or the second shell group.

2. The waterproof and breathable air suspension air supply unit noise reduction package according to claim 1, characterized in that, It also includes a mounting bracket (4); the air suspension air supply unit (6) is installed on the inner side of the second shell group or the first shell group through a vibration damping bolt assembly one (7), and the mounting bracket (4) is installed on the outer side of the second shell group or the first shell group through a vibration damping bolt assembly two (8).

3. The waterproof and breathable air suspension air supply unit noise reduction package according to claim 1, characterized in that, The first shell assembly includes a first shell (2) and a first inner liner (9) disposed on the inner wall of the first shell (2). The second shell assembly includes a second shell (3) and a second inner liner (5) disposed on the inner wall of the second shell (3). The mating end of the first shell (2) and the mating end of the second shell (3) are connected by bolts.

4. The waterproof and breathable air suspension air supply unit noise reduction package according to claim 3, characterized in that, Between the mating end of the first housing (2) and the mating end of the second housing (3), the outer mating end is provided with a plurality of mounting holes (11) along the circumferential direction, and the inner mating end is provided with a plurality of internal threaded connecting parts (10) along the circumferential direction; after the two mating ends are mated, bolts are threadedly connected to the internal threaded connecting parts (10) by passing through the mounting holes (11).

5. The waterproof and breathable air suspension air supply unit noise reduction package according to claim 4, characterized in that, The internal thread connection part is an internal threaded hole, or a through hole and a fixing nut arranged on the same axis.

6. The waterproof and breathable air suspension air supply unit noise reduction package according to claim 3, characterized in that, The first inner liner (9) and the second inner liner (5) are both made of polyester foam material.

7. The waterproof and breathable air suspension air supply unit noise reduction package according to claim 1, characterized in that, The first or second housing assembly is provided with a locking hole (2.2). The waterproof and breathable valve (1) includes a valve seat (1.1), a waterproof and breathable membrane (1.2), and a locking post (1.6). The locking post (1.6) is disposed on the valve seat (1.1) and the two together form a valve body with a T-shaped structure. After the locking post (1.6) is inserted into the locking hole (2.2), it is limited by the locking foot (1.8) at the lower end of the locking post (1.6). The valve body is provided with a connecting channel. One end of the connecting channel is connected to the interior of the installation space, and the other end is connected to the outside. The waterproof and breathable membrane (1.2) is disposed in the connecting channel.

8. The waterproof and breathable air suspension air supply unit noise reduction package according to claim 7, characterized in that, The waterproof and breathable valve (1) also includes a sealing ring (1.5), which is sleeved on the locking post (1.6); after the locking post (1.6) is limited, the sealing ring (1.5) seals the valve seat (1.1) with the first shell assembly or the second shell assembly.

9. The waterproof and breathable air suspension air supply unit noise reduction package according to claim 7, characterized in that, The first or second housing assembly is provided with a mounting cavity (2.1), and the locking hole (2.2) is disposed in the mounting cavity (2.1). The mounting cavity (2.1) is used to accommodate the valve seat (1.1).

10. The waterproof and breathable air suspension air supply unit noise reduction package according to claim 7, characterized in that, The connecting channel includes a venting cavity (1.3) and a venting channel (1.7). The valve seat (1.1) is provided with the venting cavity (1.3), and the valve seat (1.1) is provided with a plurality of vents (1.4) in the circumferential direction connecting the venting cavity (1.3) and the outside. The locking post (1.6) is provided with a venting channel (1.7). One end of the venting channel (1.7) is connected to the installation space, and the other end is connected to the venting cavity (1.3). The waterproof and breathable membrane (1.2) is disposed at the junction of the venting cavity (1.3) and the venting channel (1.7).

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