A noise-reducing air duct structure and a car seat pneumatic system

Abstract

This application discloses a noise-reducing air duct structure and an automotive seat pneumatic system, relating to the field of vehicle component technology. The noise-reducing air duct structure includes an air duct body disposed inside the automotive seat. The air duct body comprises at least two nested and concentrically arranged tube walls, with multiple partially hollow wall structures between at least one group of adjacent tube walls. The extending direction of the partially hollow wall structures is the same as the extending direction of the air duct body. This application designs partially hollow wall structures between adjacent tube walls. When noise propagates along the tube walls, because the partially hollow wall structures are hollow, the noise passes through different media during propagation, and its vibration frequency is reduced, thereby achieving the purpose of noise reduction.

Description

Technical Field

[0001] This application generally relates to the field of vehicle component technology, and specifically to a noise reduction air pipe structure and an automotive seat pneumatic system. Background Technology

[0002] Most existing air ducts used in car seats are made of flexible materials with smooth outer surfaces and no supporting walls. These ducts are relatively soft, easily bent, and generate significant airflow noise, which can affect the overall airflow and noise levels in the seat, resulting in a poor passenger experience and impacting the driving experience. Therefore, we propose a noise-reducing air duct structure and a pneumatic system for car seats to address these issues. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a noise-reducing air duct structure and a car seat pneumatic system that avoids sudden drops in airflow, reduces in-vehicle noise, and improves the driving experience.

[0004] In a first aspect, this application provides a noise-reducing tracheal structure, comprising:

[0005] The trachea body is disposed inside a car seat; the trachea body includes at least two nested and concentrically arranged tube walls, and at least one group of adjacent tube walls are provided with multiple partial hollow wall structures, the extension direction of the partial hollow wall structures being the same as the extension direction of the trachea body.

[0006] According to the technical solution provided in the embodiments of this application, the total cross-sectional area of ​​all the said local hollow wall structures is 15%-50% of the total cross-sectional area of ​​all the pipe walls on the same cross section.

[0007] According to the technical solution provided in the embodiments of this application, when the number of pipe walls is two or more and at least two groups of adjacent pipe walls are provided with the local empty wall structure, the local empty wall structures in different groups are staggered, and the end of at least one group of the local empty wall structures intersects the radial extension line of the tracheal body with the longitudinal section of at least another group of the local empty wall structures.

[0008] According to the technical solution provided in the embodiments of this application, when the number of pipe walls is two or more and at least two groups of adjacent pipe walls are provided with the local empty wall structure, the local empty wall structures in different groups are arranged in an aligned manner.

[0009] According to the technical solution provided in the embodiments of this application, the outer wall of the trachea body is provided with a plurality of protruding ridges, which are distributed circumferentially along the outer wall of the trachea body.

[0010] According to the technical solution provided in the embodiments of this application, the material of the trachea body is polyester, polyurethane, polyether, PVC, rubber and plastic, polyethylene or silicone.

[0011] Secondly, this application provides a pneumatic system for an automotive seat, including: a pneumatic component, an air source, a controller, and the aforementioned noise-reducing air pipe structure.

[0012] According to the technical solution provided in the embodiments of this application, the air source has an air outlet, and the air outlet and the air inlet of the controller are connected through the noise reduction air pipe.

[0013] According to the technical solution provided in the embodiments of this application, the air outlet of the controller is connected to the air-using component through the noise-reducing air pipe structure.

[0014] According to the technical solution provided in the embodiments of this application, the end of the noise reduction air tube structure and the outlet end of the air source, the inlet end of the air source, the inlet of the controller, the outlet of the controller, or the quick-connect structure are connected by plugging or welding to seal the local hollow wall structure.

[0015] As can be seen from the above technical solution, this application has at least the following beneficial effects:

[0016] This application discloses a noise-reducing trachea structure, which includes: a trachea body disposed inside a car seat; the trachea body includes at least two nested and concentrically arranged tube walls, and at least one group of adjacent tube walls are provided with multiple local hollow wall structures, the extension direction of the local hollow wall structures being the same as the extension direction of the trachea body.

[0017] This application designs a partial hollow wall structure between adjacent pipe walls. When noise propagates along the pipe wall, because the partial hollow wall structure is a hollow structure, the noise will pass through different media (pipe wall, air) during propagation, and its vibration frequency will be reduced, thereby achieving the purpose of reducing noise. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the noise reduction trachea.

[0020] Figure 2 for Figure 1 Enlarged view of section A.

[0021] Figure 3 This is a schematic diagram of a three-layered pipe wall structure.

[0022] Figure 4This is a schematic diagram of the first type of structure where the local hollow wall structure is a strip-shaped hole.

[0023] Figure 5 This is a schematic diagram of the second type of structure, where the local hollow wall structure is a strip-shaped hole.

[0024] Figure 6 This is a schematic diagram of a structure where the local hollow wall structure is a circular hole.

[0025] Figure 7 This is a schematic diagram of a structure with densely distributed localized hollow walls.

[0026] Figure 8 This is a cross-sectional view of the first noise-reducing tracheal structure with raised ridges.

[0027] Figure 9 This is a schematic diagram of the noise reduction air pipe structure during installation.

[0028] Figure 10 for Figure 9 Enlarged view of section B.

[0029] Figure 11 for Figure 10 Cross-sectional view of the noise reduction tracheal structure.

[0030] Figure 12 This is a schematic diagram of the structure during tracheal tube installation in the existing technology.

[0031] Figure 13 for Figure 12 Enlarged view of section C.

[0032] Figure 14 for Figure 13 Cross-sectional view of the middle trachea.

[0033] Figure 15 This is a cross-sectional view of the second type of noise-reducing tracheal structure with raised ridges.

[0034] Figure 16 for Figure 9 Enlarged view of section E in the middle.

[0035] Figure 17 This is a schematic diagram of the structure when the noise reduction trachea is inserted.

[0036] Figure 18 for Figure 17 Enlarged view of section F in the middle.

[0037] The diagram is labeled as follows: 1. Trachea body; 2. Tube wall; 3. Partial hollow wall structure; 4. Controller; 5. Raised ridge; 6. Back plate; 7. Back spring; 8. Air supply component; 9. Air source; 10. Quick-connect structure. Detailed Implementation

[0038] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] To ensure clarity and conciseness in the description of the following embodiments, a brief introduction to the related technologies is given first:

[0041] In existing technologies, such as Figure 12 As shown, the car seat includes at least: a back spring 7 and an air source 9. A backrest 6 is mounted on the back spring 7, and a controller 10 and an air-using component 8 are mounted on the backrest 6. The controller 10 has an air inlet and an air outlet. The air inlet is connected to the air source 9 via an existing air pipe structure D, and the air outlet is connected to the air-using component 8 via an existing air pipe structure D. The controller 10 is used to control the air intake and exhaust of the air-using component 8; however, as... Figure 13 and Figure 14 As shown, the existing tracheal structure D is prone to large-angle bends after assembly, resulting in significant airflow noise that easily propagates outside the tracheal tube. Therefore, a noise-reducing tracheal structure was designed to address these issues.

[0042] To make the noise-reducing tracheal structure provided in this application embodiment clearer and easier to understand, the structure is described below with reference to the accompanying drawings. Figure 1 As shown in the figure, this is a schematic diagram of the overall structure of the noise-reducing trachea structure provided in an embodiment of this application. The structure includes:

[0043] The trachea body 1 is installed inside the car seat. The trachea body 1 includes at least two nested and concentrically arranged tube walls 2, and at least one set of adjacent tube walls 2 are provided with multiple local hollow wall structures 3. The extension direction of the local hollow wall structures 3 is the same as the extension direction of the trachea body 1.

[0044] It should be noted that the trachea body 1 is hollow inside to allow gas to pass through. The material of the trachea body 1 is, for example, polyester, polyurethane, polyether, PVC, rubber, polyethylene, or silicone. The trachea body 1 includes at least two layers of walls 2, such as... Figure 3As shown, the trachea body 1 is composed of two layers of pipe walls 2, which are nested and concentrically arranged. The two layers of pipe walls 2 can be integrally formed, making the entire trachea body 1 structure more stable. There are multiple local hollow wall structures 3 between the two layers of pipe walls 2. When noise propagates along the pipe wall, since the local hollow wall structures are hollow, the noise will pass through different media (pipe wall, air) during propagation, and its vibration frequency will be reduced, thereby achieving the purpose of reducing noise and improving the driving experience.

[0045] Furthermore, when the number of pipe walls 2 is two or more layers and at least two groups of adjacent pipe walls 2 are provided with local hollow wall structures 3, the local hollow wall structures 3 in different groups are staggered, and the ends of at least one group of local hollow wall structures 3 intersect the longitudinal section of at least another group of local hollow wall structures 3 along the radial extension line of the tracheal body 1. Figure 3 As shown, the local hollow wall structure 3 located on the outer layer can cover the position of the inner layer where no local hollow wall structure 3 is set, which can better block the transmission of noise.

[0046] When there are two or more layers of pipe wall 2 and at least two groups of adjacent pipe wall 2 are provided with local hollow wall structures 3, the local hollow wall structures 3 in different groups are arranged in an aligned manner. That is, the center line connecting the local hollow wall structures 3 in the same position between adjacent groups intersects with and is perpendicular to the central axis of the tracheal body 1, which can also better block the transmission of noise.

[0047] Furthermore, the local empty wall structures 3 within the same group are either uniformly or non-uniformly distributed.

[0048] Specifically, such as Figure 4 , Figure 5 and Figure 6 As shown, the local hollow wall structures 3 in the same group are evenly distributed, which can better block the transmission of noise.

[0049] When the local empty wall structures 3 in the same group are not uniformly distributed, the effect of blocking noise transmission can be enhanced.

[0050] Based on the above, it can be seen that regardless of whether the distribution is uniform or non-uniform, the local hollow wall structure 3 can be designed to be densely distributed or non-densely distributed. This can enhance the effect of the local hollow wall structure 3 in blocking noise transmission and improve the driving experience of the vehicle.

[0051] Furthermore, the cross-section of the local hollow wall structure 3 can be either regular or irregular. Here, a regular shape is, for example: Figure 4 The bar shape shown or Figure 6 The circular shape shown; it should be noted that the specifications of the partial hollow wall structure 3 are not limited, such as Figure 4 and Figure 5As shown, the cross-sectional area of ​​the strip-shaped local hollow wall structure 3 can be large or small, but it should be noted that the total cross-sectional area of ​​all local hollow wall structures 3 is 15%-50% of the total cross-sectional area of ​​all tube walls 2 on the same cross section. This design can give the trachea body good bending resistance and also achieve noise reduction.

[0052] Furthermore, the outer wall of the trachea body 1 is provided with a plurality of raised ridges 5, which are distributed circumferentially along the outer wall of the trachea body 1.

[0053] Specifically, the raised ridges 5 provide support to the outer wall of the trachea body 1; under the same bending force, the raised ridges 5 contact each other, thereby making the trachea body 1 less prone to bending, so that there is a gap between the outer walls of the trachea body 1, avoiding abnormal phenomena such as the trachea body 1 becoming stuck, the reduction of gas flow due to bending, or the friction between the outer wall of the trachea body 1 and other internal structures of the seat causing abnormal noise, thereby enhancing the service life of the trachea and the driving experience.

[0054] like Figure 15 As shown, multiple raised ridges 5 can also be provided on the inner wall of the trachea body 1, which are distributed circumferentially along the inner wall of the trachea body 1. These ridges help to prevent the trachea body 1 from bending, ensuring that there is always a gap inside the trachea body 1. This prevents abnormal phenomena such as the trachea body 1 becoming stuck, reduced airflow due to bending, or abnormal noise caused by friction between the outer wall of the trachea body 1 and other structures inside the seat, thereby enhancing the service life of the trachea and the driving experience. Furthermore, the raised ridges 5 inside the trachea body 1 can also guide the airflow, smoothing out turbulent airflow and reducing noise.

[0055] In addition, the cross-section of the raised ridge 5 can be a regular shape or an irregular shape. Here, a regular shape is, for example, a conical shape, a trapezoidal shape, or a rectangular shape; an irregular shape is, for example, a wavy shape.

[0056] Furthermore, the raised ridges 5 are evenly or non-uniformly distributed along the outer wall of the trachea body 1.

[0057] Specifically, when the protruding ridges 5 are evenly distributed along the outer wall of the trachea body 1, the trachea body 1 is not easily bent at any position, ensuring that no matter which direction or angle the trachea body 1 bends, there is always a certain gap between the outer walls of the trachea body 1, thereby ensuring that the inside of the trachea body 1 can always be ventilated, and avoiding abnormal phenomena such as the trachea body 1 being stuck, the gas flow being reduced due to bending, or the outer wall of the trachea body 1 rubbing against other structures inside the seat and causing abnormal noise.

[0058] When the raised ridges 5 are not uniformly distributed along the outer wall of the trachea body 1, the bending habits can be known according to the actual application environment of the trachea body 1. Based on the bending habits, more dense raised ridges 5 are designed on both sides of the bending position, so that the trachea body 1 has a strong resistance to bending and minimizes the probability of the trachea body 1 breaking.

[0059] This application also provides a pneumatic system for an automotive seat, including: a pneumatic component 8, an air source 9, a controller 4, and the aforementioned noise-reducing air pipe structure;

[0060] like Figure 9 As shown, a back plate 6 is provided on the back spring 7, and an air-using component 8 and a controller 4 are provided on the back plate 6. The controller 4 has an air inlet and an air outlet. The air inlet is connected to the air outlet of the air source 9 through a noise-reducing air pipe structure, and the air outlet is connected to the air-using component 8 through a noise-reducing air pipe structure. The controller 4 is used to control the air inlet and outlet of the air-using component 8.

[0061] The ends of the noise-reducing air tube structure and the outlet end of the air source 9, the inlet end of the air source 9, the inlet of the controller 4, the outlet of the controller 4, or the quick-connect structure 10 are connected by plugging or welding to seal the local hollow wall structure 3.

[0062] like Figure 16 As shown, the outlet end of the air source 9 and the end of the noise-reducing air pipe structure are connected by an air nozzle or a quick-connect structure 10, as follows. Figure 17 and Figure 18 As shown, the end of the noise reduction air tube structure and the air inlet or outlet of the controller 4 are connected by an air nozzle or a quick-connect structure 10.

[0063] If the noise-reducing air tube structure and the air nozzle or quick-connect structure 10 are connected by a plug-in method, the end face of the noise-reducing air tube structure will abut against the end face of the air nozzle or quick-connect structure 10, sealing the local hollow wall structure 3, thereby improving the noise reduction performance; if the connection is made by welding, the end face will melt, which can also seal the local hollow wall structure 3, thus improving the noise reduction performance as well.

[0064] It should be noted that the air-using component 8 is, for example, an airbag; the air source 9 is, for example, an air pump; Figure 9 , Figure 10 and Figure 11 As shown, the car seat has the functions and advantages of the aforementioned noise reduction air duct structure, which will not be elaborated further here.

[0065] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A noise-reducing tracheal structure, characterized in that, include: The trachea body (1) is installed inside the car seat; the trachea body (1) includes at least two nested and concentrically arranged tube walls (2), and at least one set of adjacent tube walls (2) is provided with multiple local hollow wall structures (3), the extension direction of the local hollow wall structures (3) is the same as the extension direction of the trachea body (1).

2. The noise-reducing tracheal structure according to claim 1, characterized in that, The total cross-sectional area of ​​all the aforementioned local hollow wall structures (3) is 15%-50% of the total cross-sectional area of ​​all the aforementioned pipe walls (2) on the same cross section.

3. The noise-reducing tracheal structure according to claim 1, characterized in that, When the number of pipe walls (2) is two or more and at least two groups of adjacent pipe walls (2) are provided with the local empty wall structure (3), the local empty wall structures (3) in different groups are staggered, and the end of at least one group of local empty wall structures (3) intersects the radial extension line of the tracheal body (1) with the longitudinal section of at least another group of local empty wall structures (3).

4. The noise-reducing tracheal structure according to claim 1, characterized in that, When the number of pipe walls (2) is two or more and at least two groups of adjacent pipe walls (2) are provided with the local empty wall structure (3), the local empty wall structures (3) in different groups are aligned and arranged.

5. The noise-reducing tracheal structure according to claim 1, characterized in that, The outer wall of the tracheal body (1) is provided with a plurality of protruding ridges (5), which are distributed circumferentially along the outer wall of the tracheal body (1).

6. The noise-reducing tracheal structure according to claim 1, characterized in that, The material of the tracheal tube body (1) is polyester, polyurethane, polyether, PVC, rubber and plastic, polyethylene or silicone.

7. A pneumatic system for an automobile seat, characterized in that, include: The gas-using component (8), the gas source (9), the controller (4), and a noise-reducing airway structure as described in any one of claims 1-6.

8. A pneumatic system for an automobile seat according to claim 7, characterized in that, The air source (9) has an air outlet, and the air outlet and the air inlet of the controller (4) are connected through the noise reduction air pipe.

9. A pneumatic system for an automobile seat according to claim 7, characterized in that, The air outlet of the controller (4) is connected to the air-using component (8) through the noise-reducing air pipe structure.

10. A pneumatic system for an automobile seat according to claim 7, characterized in that, The end of the noise reduction air tube structure and the outlet end of the air source (9), the inlet end of the air source (9), the inlet of the controller (4), the outlet of the controller (4), or the quick-connect structure (10) are connected by plugging or welding to seal the local hollow wall structure (3).

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