Exhaust air intake integrated device and air suspension air supply module

Abstract

The utility model provides an integrated device of air intake and exhaust and air suspension gas supply module relates to gas exchange device technical field. The utility model discloses through setting up the filter assembly with the aperture structure of gradient change along the thickness direction in the same housing assembly, forms the airflow channel of two -way through between public port and air intake interface and air outlet, realizes the function unity of air intake filtration and exhaust self -cleaning, and gradient aperture structure can enhance the damping effect to sound wave when airflow passes, reduces gas noise. The scheme completes the unified arrangement of air intake and exhaust path through single device, avoids the pipeline complexity and space occupation caused by the separation of traditional air intake and exhaust module, improves the integration, reliability and maintenance convenience of device. The utility model also provides an air suspension gas supply module, including above integrated device of air intake and exhaust, and has its corresponding beneficial effect.

Description

Technical Field

[0001] This utility model relates to the field of gas exchange device technology, and in particular to an integrated intake and exhaust device and an air suspension air supply module. Background Technology

[0002] In integrated air suspension systems, to ensure the normal operation of internal motors, dryers, and other components and to extend their service life, the air entering the system must be filtered during gas exchange to prevent external pollutants such as dust and solid particles from entering.

[0003] Currently, the intake and exhaust systems of existing air suspension air supply modules in the industry have significant limitations: air filters are mostly connected separately to the air compressor intake port, while the exhaust port requires an additional rubber hose for exhaust. This decentralized arrangement not only leads to a complex overall pipeline layout and occupies a large amount of space, but also makes it difficult to solve the aerodynamic noise problem during exhaust. At the same time, although some models use expansion chamber type mufflers, their noise reduction effect on high-speed airflow is limited; other mufflers mostly rely on multi-cavity structures or complex resonant cavity designs, which are not only cumbersome in structure, but also prone to generating their own structural noise, and cannot simultaneously achieve self-cleaning of the filter components during intake and exhaust, resulting in a significant decrease in filtration efficiency over time. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an integrated intake and exhaust device and an air suspension air supply module to solve the relevant problems in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides an integrated intake and exhaust device, comprising:

[0006] The housing assembly is equipped with an air inlet, an air outlet, and a common port for connecting to the atmosphere;

[0007] A filter assembly is disposed within the housing assembly, the filter assembly having a pore structure that varies in gradient along its thickness direction;

[0008] Wherein, the common port forms a bidirectional airflow channel with the air inlet and the air outlet respectively through the filter component, such that:

[0009] During the intake process, the intake airflow enters through the common port, passes through the filter assembly, and is input from the intake interface;

[0010] During the exhaust process, the exhaust airflow is output from the outlet port, passes through the filter assembly in the reverse direction, and is discharged from the common port.

[0011] Furthermore, the filter assembly includes multiple layers of filter paper, which have multiple uniformly distributed pore structures to allow airflow to pass through in both directions, and the multiple layers of filter paper are stacked and assembled along the thickness direction of the filter assembly.

[0012] Furthermore, the filter assembly includes a first filter layer and a second filter layer;

[0013] The first filter layer has a first pore structure formed on the filter paper near the common port.

[0014] The second filter layer is located near the air inlet and air outlet, and a second pore structure is formed on the filter paper of the second filter layer.

[0015] The pore diameter of the first pore structure is larger than that of the second pore structure.

[0016] Furthermore, the housing assembly includes an upper housing and a lower housing connected to each other, with a first cavity formed between the upper housing and the lower housing;

[0017] The common port is located on the upper housing, the air inlet and the air outlet are located on the lower housing, and the filter assembly is located in the first cavity.

[0018] Furthermore, the lower housing has an independent second cavity inside, one end of which is connected to the first cavity, and the other end is connected to the air inlet and the air outlet respectively.

[0019] Furthermore, the lower housing is provided with a guide tube extending from the second cavity into the interior of the first cavity. The second cavity and the first cavity are connected through the guide tube to guide the airflow through the filter assembly during the intake or exhaust process.

[0020] Furthermore, the upper housing is provided with a support bracket inside, which is located in the first cavity and forms a support portion for supporting the filter assembly.

[0021] Furthermore, the first cavity is provided with an upper end cover and a lower end cover, which are respectively disposed at the upper and lower ends of the filter assembly to clamp and fix the filter assembly in the housing assembly. The upper end cover is supported by the support frame, and the lower end cover is provided with holes and is fixed with the guide tube by interference fit.

[0022] Furthermore, the common port, the air inlet, and the air outlet are all equipped with pagoda connectors.

[0023] This application also provides an air suspension air supply module, including any of the above-described intake and exhaust integrated devices.

[0024] As described above, the integrated intake and exhaust device and air suspension air supply module of this utility model have at least the following beneficial effects, including but not limited to:

[0025] This invention achieves a unified function of intake filtration and exhaust self-cleaning by incorporating a filter assembly with a gradient pore structure along its thickness within a single housing component. This creates a bidirectional airflow channel between the common port and the intake and exhaust ports. During intake, the airflow passes sequentially through pore regions with progressively smaller apertures, first trapping larger particles and then filtering out finer impurities to ensure the cleanliness of the air entering the supply module. During exhaust, the airflow passes through the filter assembly in the opposite direction, utilizing the airflow disturbance and scouring effect created by the pore structure gradient to effectively strip and remove dust particles adhering to the filter assembly surface, thus achieving a self-cleaning effect. Simultaneously, the gradient pore structure enhances the damping effect on sound waves as airflow passes through, reducing gas noise. This solution unifies the intake and exhaust paths with a single device, avoiding the complexity and space occupation caused by separate intake and exhaust modules in traditional methods, and improving the device's integration, reliability, and ease of maintenance. Attached Figure Description

[0026] Figure 1 The diagram shown is a structural schematic of an integrated intake and exhaust device according to an embodiment of the application.

[0027] Figure 2 The diagram shows the internal structure of the integrated intake and exhaust device in the intake state in the embodiment of this application.

[0028] Figure 3 The diagram shows the internal structure of the integrated intake and exhaust device in the exhaust state in the embodiment of this application.

[0029] Figure 4 The diagram shown is a structural schematic of the intake and exhaust integrated device mounted on the air suspension air supply module in an embodiment of this application.

[0030] Icons: 1. Housing assembly, 2. Inlet port, 3. Outlet port, 4. Common port, 5. Filter assembly, 6. First filter layer, 7. Second filter layer, 8. Upper housing, 9. Lower housing, 10. Second cavity, 11. Guide pipe, 12. Pagoda connector, 13. Inlet and exhaust integrated device. Detailed Implementation

[0031] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0032] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0033] Please refer to Figures 1-3 This application discloses an integrated intake and exhaust device 13, including a housing assembly 1 and a filter assembly 5. The housing assembly 1 is provided with an intake port 2, an exhaust port 3, and a common port 4 communicating with the atmosphere. The filter assembly 5 is disposed inside the housing assembly 1 and has a pore structure that varies in gradient along its thickness direction. The common port 4 forms a bidirectional airflow channel with the intake port 2 and the exhaust port 3 through the filter assembly 5, such that: during the intake process, the intake airflow enters through the common port 4, passes through the filter assembly 5, and is input from the intake port 2; during the exhaust process, the exhaust airflow is output from the exhaust port 3, passes through the filter assembly 5 in the reverse direction, and is discharged from the common port 4.

[0034] It is worth noting that this application achieves a unified function of intake filtration and exhaust self-cleaning by setting a filter component 5 with a pore structure that varies in thickness along the same housing component 1, thereby forming a bidirectional airflow channel between the common port 4 and the intake port 2 and exhaust port 3. One-way valves can be installed at the intake port 2 and exhaust port 3 to ensure unidirectional airflow. During intake, the airflow passes sequentially through pore regions with progressively smaller apertures, first trapping larger particles and then filtering finer impurities to ensure the cleanliness of the air entering the air supply module. During exhaust, the airflow passes through the filter component 5 in the opposite direction, utilizing the airflow disturbance and scouring effect brought about by the pore structure gradient to effectively peel off and carry away dust particles attached to the surface of the filter component 5, thus achieving a self-cleaning effect. Simultaneously, the gradient pore structure enhances the damping effect on sound waves as airflow passes through, reducing gas noise. This solution achieves a unified arrangement of intake and exhaust paths through a single device, avoiding the complexity of piping and space occupation caused by the separation of traditional intake and exhaust modules, and improving the integration, reliability, and ease of maintenance of the device.

[0035] In some embodiments, please refer to Figure 2 and Figure 3 The filter assembly 5 includes multiple layers of filter paper, which have multiple evenly distributed pore structures to allow airflow to pass through in both directions. The multiple layers of filter paper are stacked and assembled along the thickness direction of the filter assembly 5.

[0036] Specifically, the filter assembly 5 is assembled from multiple layers of filter paper stacked together. Each layer of filter paper has multiple evenly distributed pore structures to ensure that gas can pass through in both the inlet and outlet directions. The number of filter paper layers can be determined according to requirements, and they are fixed inside the housing assembly 1 by pressing or bonding during assembly. It should be noted that the multi-layer filter paper structure significantly increases the filtration area, improves the overall dust holding capacity and filtration efficiency, and avoids rapid clogging of a single layer. At the same time, the evenly distributed pores ensure smooth airflow, reduce air resistance, and help extend the service life of the device and reduce maintenance frequency.

[0037] In some embodiments, please refer to Figure 2 and Figure 3 The filter assembly 5 includes a first filter layer 6 and a second filter layer 7; the first filter layer 6 is located near the common port 4, and a first pore structure is formed on the filter paper of the first filter layer 6; the second filter layer 7 is located near the air inlet 2 and the air outlet 2, and a second pore structure is formed on the filter paper of the second filter layer 7; wherein the pore size of the first pore structure is larger than the pore size of the second pore structure.

[0038] Specifically, the first filter layer 6 is located near the common port 4, forming a first pore structure with a larger pore size to trap large particulate impurities. The second filter layer 7 is located near the air inlet 2 and the air outlet 2, forming a second pore structure with a smaller pore size to capture fine particles. This gradient distribution of pore size achieves graded filtration; large particles are intercepted in the first filter layer 6, while fine particles are captured in the second filter layer 7, effectively improving air cleanliness. This structure reduces the burden on the finer layers, extends component life, and facilitates the removal of large dust particles during exhaust backflushing, improving self-cleaning performance. In practical applications, the filter paper of the first filter layer 6 can be made of long-fiber material with a larger pore size, primarily serving to hold dust and retain it within the housing, preventing it from entering the interior. The filter paper of the second filter layer 7, located closer to the inside, is composed more of short fibers, with a corresponding smaller pore size. This strengthens the overall structural strength of the filter paper while ensuring overall filtration efficiency with smaller gaps.

[0039] It is worth noting that during the exhaust process, the high-pressure gas released first enters the cavity and then the filter paper. Since the filter paper itself has a porous structure, sound waves propagating through this structure cause air molecules within the pores to vibrate. Due to the friction of the pores, sound energy is converted into heat energy, causing sound wave attenuation. Simultaneously, the frequency of sound attenuation is related to the pore size. The different fiber lengths of the filter paper in the first filter layer 6 and the second filter layer 7 create pores of varying sizes, thus broadening the sound absorption frequency range. When the gas passes through the inner second filter layer 7 and contacts the outer first filter layer 6, the gas flow rate increases, blowing the dust accumulated on the outer surface of the filter paper back into the atmosphere, thus providing a certain degree of self-cleaning and increasing the filter paper's lifespan.

[0040] In some embodiments, please refer to Figures 1-3 The housing assembly 1 includes an upper housing 8 and a lower housing 9 connected to each other, forming a first cavity between the upper housing 8 and the lower housing 9; the common port 4 is opened on the upper housing 8, the air inlet 2 and the air outlet 3 are opened on the lower housing 9, and the filter assembly 5 is disposed in the first cavity.

[0041] Specifically, the housing assembly 1 includes an upper housing 8 and a lower housing 9 connected to each other, forming a first cavity, within which the filter assembly 5 is disposed. A common port 4 is located on the upper housing 8 for easy communication with the atmosphere; an air inlet 2 and an air outlet 2 are located on the lower housing 9 and connected to the required air supply module. This structure encapsulates the filter assembly 5 within an independent cavity between the upper and lower housings 9, ensuring that airflow can only pass through the filter assembly 5, avoiding bypass flow and improving filtration efficiency. Optionally, the upper housing 8 and the lower housing 9 can be detachably or non-detachably connected. When detachably connected, the modular design of the upper and lower housings 9 facilitates assembly and disassembly, saving installation time and improving maintenance convenience; alternatively, a welded connection can be used to achieve a non-detachable connection.

[0042] In some embodiments, please refer to Figure 2 and Figure 3 The lower housing 9 has an independent second cavity 10 inside. One end of the second cavity 10 is connected to the first cavity, and the other end is connected to the air inlet 2 and the air outlet 3 respectively.

[0043] It should be noted that the independently designed second chamber 10 guides the intake and exhaust channels to the first chamber in an orderly manner, effectively avoiding airflow turbulence and mutual interference, and improving airtightness and airflow guidance. This arrangement ensures the stability of intake and exhaust, reduces energy loss, and improves system operating efficiency.

[0044] In some embodiments, please refer to Figure 2 and Figure 3The lower housing 9 is provided with a guide pipe 11 extending from the second cavity 10 into the interior of the first cavity. The second cavity 10 and the first cavity are connected through the guide pipe 11 to guide the airflow through the filter assembly 5 during the intake or exhaust process.

[0045] Specifically, the guide pipe 11 extends from the second cavity 10 into the first cavity, with its end facing the inner cavity of the filter assembly 5, ensuring that the airflow can directly penetrate the filter assembly 5 when entering or exiting. Optionally, the guide pipe 11 can be integrally formed or fixed to the lower housing 9 by welding. The guide pipe 11 avoids the airflow bypassing the first cavity, allowing the gas to flow concentratedly through the central area of ​​the filter assembly 5, improving filtration uniformity and efficiency. During exhaust, the guide pipe 11 guides the reverse airflow, enhancing the self-cleaning effect and reducing deposits on the filter material surface.

[0046] In some embodiments, the upper housing 8 is provided with a support bracket inside, which is located in the first cavity and forms a support portion for supporting the filter assembly 5.

[0047] Specifically, a support bracket is provided inside the upper housing 8, forming a support portion within the first cavity to support the filter assembly 5. Optionally, the support bracket can be made of ribs, annular frames, or a mesh structure, and can be located at the bend of the inner cavity of the first cavity, integrally formed with the upper housing 8 or fixed by an embedding method. The support bracket effectively prevents the filter assembly 5 from deforming or shifting during high-pressure air intake or exhaust, ensuring that the filter assembly 5 remains sealed and stable with the housing, thereby improving the system reliability and durability.

[0048] In some embodiments, the first cavity is provided with an upper end cover and a lower end cover, respectively disposed at the upper and lower ends of the filter assembly 5, to clamp and fix the filter assembly 5 within the housing assembly 1. The upper end cover is supported by the support frame, and the lower end cover has a hole and is fixed with the guide tube 11 by an interference fit. The upper and lower end covers firmly clamp the filter assembly 5, ensuring sealing and positioning accuracy. Optionally, the upper and lower ends of the filter assembly 5 are fixed by adhesive after being clamped by the upper and lower end covers. The support of the upper end cover and the interference fit of the lower end cover work together to prevent airflow bypass and loosening of the filter material, further improving airflow guidance and self-cleaning effect.

[0049] Specifically, the first chamber is equipped with an upper end cover and a lower end cover, located at the upper and lower ends of the filter assembly 5, respectively. The upper end cover is supported by a support frame, and the lower end cover has holes and is fixed with an interference fit to the guide tube 11. Optionally, the end covers can be made of plastic or metal and fixed by bonding or press-fitting. The upper and lower end covers firmly clamp the filter assembly 5, ensuring sealing and positioning accuracy. The support of the upper end cover and the interference fit of the lower end cover work together to prevent airflow bypass and loosening of the filter assembly 5, further improving airflow guidance and self-cleaning effect.

[0050] In some embodiments, please refer to Figures 1-3 The common port 4, the air inlet 2 and the air outlet 3 are all equipped with pagoda connectors 12.

[0051] Specifically, the common port 4, the air inlet 2, and the air outlet are all equipped with a pagoda connector 12. The pagoda connector 12 is stepped, which facilitates the insertion of the hose and fixation with clamps. The pagoda connector 12 improves the connection between the interface and the hose, reduces the risk of loosening or leakage caused by vibration or airflow impact, and ensures that the intake and exhaust system operates stably for a long time in its operating environment.

[0052] Please see Figure 4 This application also provides an air suspension air supply module, including the above-mentioned intake and exhaust integrated device 13, which has corresponding beneficial effects. At the same time, the application of the intake and exhaust integrated device 13 in the air suspension air supply module can significantly reduce the number of pipelines and related accessories, reduce assembly complexity and layout space requirements, and improve system reliability and maintenance convenience, which meets the needs of modern vehicles for modularity and compactness.

[0053] In summary, this application achieves a unified function of intake filtration and exhaust self-cleaning by incorporating a filter assembly with a gradient pore structure along the thickness direction within the same housing component. This creates a bidirectional airflow channel between the common port and the intake and exhaust ports. During intake, the airflow passes sequentially through pore regions with progressively smaller apertures, first trapping larger particles and then filtering finer impurities to ensure the cleanliness of the air entering the supply module. During exhaust, the airflow passes through the filter assembly in the opposite direction, utilizing the airflow disturbance and scouring effect brought about by the pore structure gradient to effectively strip and remove dust particles adhering to the surface of the filter assembly, thus achieving a self-cleaning effect. Simultaneously, the gradient pore structure enhances the damping effect on sound waves as airflow passes through, reducing gas noise. This solution unifies the intake and exhaust paths with a single device, avoiding the complexity of piping and space occupation caused by the separation of traditional intake and exhaust modules, and improving the integration, reliability, and ease of maintenance of the device.

[0054] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0055] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of this application. However, those skilled in the art will recognize that embodiments of this invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of this application.

[0056] Throughout this specification, references to "an embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the present invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments described herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0057] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0058] Furthermore, unless otherwise expressly stated, any arrows in the accompanying drawings should be considered illustrative only and not limiting. Additionally, unless otherwise stated, the term "or" as used herein is generally intended to mean "and / or". Where a term is anticipated to provide a separation or combination capability that is unclear, a combination of components or steps will also be considered as indicated.

[0059] As used herein and throughout the claims below, unless otherwise specified, “a” and “the” include the plural references. Similarly, as used herein and throughout the claims below, unless otherwise specified, “in” means “in” and “on”.

[0060] The above description of the embodiments shown in this utility model (including the content in the abstract of the specification) is not intended to be an exhaustive enumeration or to limit the utility model to the precise forms disclosed herein. Although specific embodiments and examples of the utility model have been described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the utility model, as will be recognized and understood by those skilled in the art. As indicated, these modifications can be made to the utility model in accordance with the above description of the embodiments of this application, and such modifications will be within the spirit and scope of the utility model.

[0061] This document has generally described the systems and methods in detail to aid in understanding the present invention. Furthermore, various specific details have been set forth to provide a general understanding of the embodiments of this application. However, those skilled in the art will recognize that embodiments of the present invention can be practiced without one or more specific details, or using other devices, systems, accessories, methods, components, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been specifically shown or described in detail to avoid obscuring various aspects of the embodiments of this application.

Claims

1. An integrated intake and exhaust device, characterized in that, include: The housing assembly is equipped with an air inlet, an air outlet, and a common port for connecting to the atmosphere; A filter assembly is disposed within the housing assembly, the filter assembly having a pore structure that varies in gradient along its thickness direction; Wherein, the common port forms a bidirectional airflow channel with the air inlet and the air outlet respectively through the filter component, such that: During the intake process, the intake airflow enters through the common port, passes through the filter assembly, and is input from the intake interface; During the exhaust process, the exhaust airflow is output from the outlet port, passes through the filter assembly in the reverse direction, and is discharged from the common port.

2. The integrated intake and exhaust device according to claim 1, characterized in that: The filter assembly includes multiple layers of filter paper, which have multiple evenly distributed pore structures to allow airflow to pass through in both directions. The multiple layers of filter paper are stacked and assembled along the thickness direction of the filter assembly.

3. The integrated intake and exhaust device according to claim 2, characterized in that: The filtration assembly includes a first filtration layer and a second filtration layer; The first filter layer has a first pore structure formed on the filter paper near the common port. The second filter layer is located near the air inlet and air outlet, and a second pore structure is formed on the filter paper of the second filter layer. The pore diameter of the first pore structure is larger than that of the second pore structure.

4. The integrated intake and exhaust device according to claim 1, characterized in that: The housing assembly includes an upper housing and a lower housing that are connected to each other, and a first cavity is formed between the upper housing and the lower housing; The common port is located on the upper housing, the air inlet and the air outlet are located on the lower housing, and the filter assembly is located in the first cavity.

5. The integrated intake and exhaust device according to claim 4, characterized in that: The lower housing has an independent second cavity inside. One end of the second cavity is connected to the first cavity, and the other end is connected to the air inlet and the air outlet respectively.

6. The integrated intake and exhaust device according to claim 5, characterized in that: The lower housing is provided with a guide tube extending from the second cavity into the interior of the first cavity. The second cavity and the first cavity are connected through the guide tube to guide airflow through the filter assembly during the intake or exhaust process.

7. The integrated intake and exhaust device according to claim 6, characterized in that: The upper housing has a support bracket inside, which is located in the first cavity and forms a support portion for supporting the filter assembly.

8. The integrated intake and exhaust device according to claim 7, characterized in that: The first cavity is provided with an upper end cover and a lower end cover, which are respectively disposed at the upper and lower ends of the filter assembly to clamp and fix the filter assembly in the housing assembly. The upper end cover is supported by the support frame, and the lower end cover is provided with holes and is fixed with the guide tube by interference fit.

9. An integrated intake and exhaust device according to any one of claims 1-8, characterized in that: The common port, the air inlet, and the air outlet are all equipped with pagoda connectors.

10. An air suspension air supply module, characterized in that, Includes an integrated intake and exhaust device as described in any one of claims 1-9.

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