Automobile front wall plate via hole sealing assembly and vehicle

Abstract

The application provides a sealing assembly of a front wall hole of an automobile and a vehicle, and belongs to the technical field of automobile sealing accessories. The sealing assembly comprises a front wall, a front wall sound insulation layer and a hole sound insulation structure. The front wall has an installation hole penetrating through the inside and outside of the front wall, and the installation hole is used for penetrating a connecting piece. The front wall sound insulation layer covers the inside of the front wall and has a clearance hole opposite to the position of the installation hole, and the radial dimension of the clearance hole is greater than the dimension of the installation hole. The hole sound insulation structure covers the clearance hole in a ring shape and has a thickness extending into the vehicle cabin. The radial inner edge of the hole sound insulation structure abuts against the connecting piece, and the radial outer edge of the hole sound insulation structure is integrally connected with the front wall sound insulation layer. The sealing assembly of the front wall hole of the automobile and the vehicle can effectively attenuate the noise intensity of the engine compartment noise entering the vehicle cabin, improve the comfort of the whole vehicle, and save the production and assembly costs.

Description

Technical Field

[0001] This application belongs to the field of automotive sealing components technology, and more specifically, relates to a sealing assembly for a through hole in an automotive front bulkhead and a vehicle. Background Technology

[0002] The front bulkhead of a car refers to the partition between the engine compartment and the passenger compartment. It connects to the floor and front pillars. The bulkhead has numerous perforations for the passage of control cables, levers, pipes, and wiring harnesses, and also serves as the mounting location for components such as pedals and steering column. To prevent exhaust fumes, high temperatures, and noise from the engine compartment from entering the passenger compartment, the perforations on the front bulkhead typically require sealing measures.

[0003] In the existing technology, in order to effectively block the transmission of engine compartment noise into the vehicle, separate sealing accessories are often set on the inside or outside of the through-hole, and a safety cover is also set. However, the actual sealing effect is not good, and the size and shape of each through-hole are different. Therefore, a large variety and quantity of sealing accessories are required, resulting in high production costs. Utility Model Content

[0004] The purpose of this application is to provide a sealing assembly and vehicle for a through hole in a car front bulkhead, aiming to solve the technical problems of poor sealing effect, large variety and quantity, and high production cost of existing sealing structures for through holes in car front bulkheads.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, a sealing assembly for a through hole in a car front bulkhead is provided, comprising: The front panel has an internally and externally connected mounting hole, through which a connector is inserted; A front bulkhead sound insulation layer covers the inner side of the front bulkhead panel and has a clearance hole opposite to the mounting through hole, the diameter of the clearance hole being larger than the diameter of the mounting through hole; and The perforated sound insulation structure is ring-shaped and covers the clearance hole, and has a thickness that extends into the carriage. The radial annular inner edge of the perforated sound insulation structure abuts against the connector; the radial annular outer edge of the perforated sound insulation structure is integrally connected to the front sound insulation layer.

[0006] Compared with the prior art, the solution shown in this application embodiment achieves a sealed connection between the through-hole sound insulation structure and the connector by having the radial annular inner edge of the through-hole sound insulation structure abut against the connector. Furthermore, the through-hole sound insulation structure has a thickness extending into the vehicle compartment, which can extend the effective protection distance of the through-hole sound insulation structure in the inward and outward directions, increase the sound insulation coverage area, enhance the NVH sound insulation and absorption performance of the turning through-hole area, and enhance the sealing effect. In addition, the sound insulation structure with holes in this application is an integrally connected structure with the front sound insulation layer, which eliminates the need for separate sealing rings or sealing layer structures for each hole, and also eliminates the need for a steering shield structure, which can reduce the cost of separate processing, production and assembly, and is conducive to improving the integration of the automotive front assembly. Therefore, the sealing assembly for the through holes of the automotive front bulkhead provided in this application can effectively improve the sealing effect at the through holes of the front bulkhead, effectively reduce the noise intensity of engine compartment noise entering the passenger compartment, effectively block the transmission of powertrain noise into the vehicle, and improve the overall vehicle comfort; moreover, it has a high degree of integration, which can reduce the number and types of various sealing accessories and reduce production and assembly costs, meeting the overall vehicle cost reduction requirements.

[0007] In conjunction with the first aspect, in one possible implementation, a cutting edge is cut at the connection between the perforated sound insulation structure and the front sound insulation layer, the cutting edge being semi-circular; and a first connecting portion is left between the two ends of the cutting edge to ensure an integral connection between the perforated sound insulation structure and the front sound insulation layer.

[0008] By setting a cutting edge, the perforated sound insulation structure and the front sound insulation layer can be separated. However, due to the presence of a first connecting part, the perforated sound insulation structure and the front sound insulation layer can still be integrated. By setting a cutting edge, the perforated sound insulation structure can be opened at the cutting edge when installing the connector, forming an opening that facilitates installation and thus improves the convenience of installation.

[0009] In some embodiments, both ends of the cut edge are provided with extended edge seams, which extend away from the sound insulation structure of the through hole; the two extended edge seams are sandwiched on both sides of the first connecting portion, so that the first connecting portion forms a structure that extends radially along the mounting through hole.

[0010] By setting an extended edge seam, the separation line between the perforated sound insulation structure and the front sound insulation layer is further increased, which facilitates further enlarging the opening of the perforated sound insulation structure and enhances the ease of installation. Furthermore, the extension of the extended edge seam further extends the length of the first connecting part, which can enhance the opening and closing toughness of the first connecting part when the perforated sound insulation structure is opened and closed, and avoid the problem of excessive bending and damage to the first connecting part.

[0011] For example, the through-hole sound insulation structure is further provided with a separation seam; one end of the separation seam is connected to the cutting seam, and the other end extends to the radial annular inner edge of the through-hole sound insulation structure.

[0012] By setting a separation seam, an opening can be formed in the perforated sound insulation structure, making it convenient to install connectors at the opening of the perforated sound insulation structure; and since one end of the perforated sound insulation structure is connected to the cut seam, the cut seam, the extension seam and the separation seam can be connected to form a larger overall opening, which facilitates the installation of connectors.

[0013] In some embodiments, the separation seam is distributed opposite to the first connecting portion at both radial ends of the mounting through hole.

[0014] By distributing the separation seam and the first connecting part opposite each other at the radial ends of the mounting hole, the sound insulation structure of the hole can be made into two equal parts, which facilitates the centering of the sound insulation structure of the hole and makes it easy to make the two parts of the sound insulation structure open to the same degree at the opening, thereby ensuring the convenience of installation.

[0015] In conjunction with the first aspect, in one possible implementation, the through-hole sound insulation structure includes: The second connecting part is located at the mounting hole and is integrally connected with the front sound insulation layer; The extension is integrally connected to the second connecting part and extends into the carriage. Both the second connecting portion and the extension portion are annular structures, and the radial annular inner edge of the second connecting portion abuts against the connector.

[0016] By providing a second connecting part, a sealed connection between the through-hole sound insulation structure and the connector can be achieved. By providing an extension part, the sealing length in the inner and outer directions can be enhanced, thereby improving the sealing effect.

[0017] For example, the connection between the extension and the second connecting portion is a bottomless bowl-shaped structure.

[0018] By setting the extension and the second connecting part as a bowl-shaped structure, a transitional connection between the second connecting part and the extension part can be achieved; and the bowl-shaped structure has a large bowl mouth cross-sectional size and a small bowl bottom interface size. Therefore, the bowl-shaped structure formed by the second connecting part and the extension part can achieve a change in cross-sectional size from large to small, which is beneficial to improving the sound insulation and sealing effect.

[0019] In some embodiments, the axis of the connector is inclined to the surface of the front bulkhead; Defined in the inclined direction of the connector, the side of the connector that extends into the carriage and is close to the front bulkhead is the first side, and the side opposite to the first side is the second side; The extension extends into the vehicle compartment along the axial direction of the connector, and the thickness of the extension in the direction inward and outward of the vehicle body gradually increases from the first side to the second side.

[0020] By extending the extension along the axial direction of the connector, the through-hole sound insulation structure can be adapted to connectors with different extension directions; this can effectively improve the sealing effect of the through-hole sound insulation structure in the axial direction of the connector.

[0021] Furthermore, since the connector extends at an angle, the gap between the connector and the first and second sides of the mounting hole is not equal. In this application, by gradually increasing the extension thickness of the extension from the second side to the first side, the sound insulation and sealing effect at the mounting hole can be further improved.

[0022] In conjunction with the first aspect, in one possible implementation, the through-hole sound insulation structure is provided with an inner and outer through-hole, and a fastener is inserted through the through-hole; and the wall of the through-hole abuts against the outer peripheral wall of the fastener.

[0023] By setting clearance holes, it is convenient to install fasteners, thereby achieving the fixation of the corresponding connectors; and the wall of the clearance hole abuts against the outer peripheral wall of the fastener, which can ensure the sealing effect at the clearance hole and improve the sound insulation and noise reduction effect.

[0024] Secondly, embodiments of this application also provide a vehicle that includes the sealing assembly for the aforementioned automotive front bulkhead through-hole.

[0025] The vehicle provided in this application, having included the aforementioned sealing assembly for the through-hole of the automotive front bulkhead, possesses all the beneficial effects of the aforementioned sealing assembly for the through-hole of the automotive front bulkhead. It can effectively improve the sealing effect at the through-hole of the front bulkhead, reduce the noise intensity of engine compartment noise entering the passenger compartment, effectively block the transmission of powertrain noise into the vehicle, and improve the overall vehicle comfort. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the sealing assembly for the through hole in the front bulkhead of an automobile provided in an embodiment of this application; Figure 2 This is an enlarged structural diagram of the through-hole sound insulation structure provided in the embodiments of this application; Figure 3 This is a cross-sectional schematic diagram of the sound insulation structure with perforations provided in an embodiment of this application.

[0028] In the diagram: 1. Front bulkhead; 11. Connector; 12. First side; 13. Second side; 14. Mounting through hole; 2. Front bulkhead sound insulation layer; 21. Clearance hole; 3. Through hole sound insulation structure; 31. Second connecting part; 32. Extension part; 33. Clearance hole; 34. First sound insulation layer; 35. Second sound insulation layer; 4. Cut edge seam; 5. First connecting part; 6. Separation edge seam; 7. Extension edge seam. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] It should be noted that the orientation or positional relationship indicated by "inner", "outer", "upper", and "lower" in this embodiment is based on the orientation of the vehicle itself. The top of the vehicle represents "upper", the bottom of the vehicle represents "lower", the "inner" side refers to the side facing the driver's cab, which can also be understood as the side facing the inside of the passenger compartment, and the "outer" side refers to the side facing the outside of the driver's cab, which can also be understood as the side facing the outside of the passenger compartment.

[0033] It should be noted that the sealing assembly for the through-holes in the automotive front bulkhead provided in this application is used to improve the NVH performance at the mounting holes 14 on the front bulkhead 1; NVH is an abbreviation for Noise, Vibration, and Harshness. NVH is a comprehensive issue that measures the quality of automotive manufacturing, and it is the most direct and superficial impression given to automotive users.

[0034] In existing technologies, such as steering column mounting structures, sound insulation rings or sound insulation rings can be set separately and fixed to the body panel. However, since the thickness and radial dimensions of various mounting holes 14 are different, it is necessary to identify the matching type and assemble them during installation, which increases the processing and assembly costs.

[0035] In addition, to ensure the sealing of the mounting hole 14, some models also have a steering guard on the steering column, and a steering dust cover is also installed on the steering column. However, the steering guard itself has insufficient NVH sound insulation and absorption performance, and the steering guard is fastened to the mounting hole 14, which will also increase the overall vehicle cost.

[0036] It should be understood that, for a ring structure, in the radial direction, the ring structure has an inner edge and an outer edge, which can also be understood as the inner ring surface and the outer ring surface of the ring structure. In this application, the radial inner ring edge is used to refer to the inner ring surface of the ring structure that is close to the axis in the radial direction, and the radial outer ring edge is used to refer to the outer ring surface of the ring structure that is far away from the axis in the radial direction.

[0037] Please refer to the following: Figures 1 to 3 The sealing assembly for the through-hole in the automotive front bulkhead and the vehicle provided in this application are described below. The sealing assembly for the through-hole in the automotive front bulkhead includes a front bulkhead 1, a sound insulation layer for the front bulkhead 1, and a through-hole sound insulation structure 3. The front bulkhead 1 has an internally and externally through-hole 14, through which a connector 11 is inserted. The front bulkhead sound insulation layer 2 covers the inner side of the front bulkhead 1 and has a clearance hole 21 opposite to the position of the through-hole 14, the diameter of the clearance hole 21 being larger than the diameter of the through-hole 14. The through-hole sound insulation structure 3 is annularly covered at the clearance hole 21 and has a thickness extending into the vehicle compartment. The radial annular inner edge of the through-hole sound insulation structure 3 abuts against the connector 11. The radial annular outer edge of the through-hole sound insulation structure 3 is integrally connected to the front bulkhead sound insulation layer 2.

[0038] It should be understood that the mounting holes 14 on the front bulkhead 1 of the vehicle are usually used to pass through various connectors 11, such as steering column, air conditioning pipe, throttle pull wire and connecting harness. When the connectors 11 are passed through the mounting holes 14, gaps are easily left between the outer peripheral wall of the connector 11 and the hole wall of the mounting hole 14. Exhaust gas, high temperature and noise in the engine compartment can enter the passenger compartment through the gaps, causing noise or exhaust pollution and affecting the comfort of the passengers.

[0039] The through-hole sound insulation structure 3 in this application is configured in a one-to-one correspondence with the corresponding connecting member 11. The through-hole sound insulation structure 3 is used to seal and soundproof the mounting through-hole 14 at the corresponding connecting member 11, so as to prevent exhaust gas, high temperature and noise from entering the carriage through the gap, thereby improving the comfort of riding.

[0040] It should be noted that the through-hole sound insulation structure 3 and the front sound insulation layer 2 are integrated connection structures in this application. It can be understood that the through-hole sound insulation structure 3 in this application is an extension of the structure at the relief hole 21 of the original front sound insulation layer 2. That is, the through-hole sound insulation structure 3 is added at the relief hole 21, which increases the coverage area of ​​the sound insulation layer, can enhance the NVH sound insulation and absorption performance of the installation through-hole 14, and improve the sound insulation and noise reduction effect.

[0041] Therefore, the perforated sound insulation structure 3 provided in this application can be integrally manufactured with the front sound insulation layer 2 without separate preparation and processing, and there is no need to separately set a steering guard or other sound insulation ring, resulting in a lower actual manufacturing cost.

[0042] For example, when the mounting hole 14 is used to install a steering column, a dust cover is usually provided on the steering column. The radial annular inner edge of the through hole sound insulation structure 3 in this application abuts against the dust cover. Specifically, the dust cover extends radially along the steering column and forms a stepped surface, and the annular inner edge of the through hole sound insulation structure 3 abuts against the stepped surface of the dust cover to press against the stepped surface of the dust cover in the inward and outward directions.

[0043] For example, the front bulkhead sound insulation layer 2 includes a first sound insulation layer 34 and a second sound insulation layer 35; and the first sound insulation layer 34 and the second sound insulation layer 35 are stacked sequentially along the inside and outside direction of the vehicle compartment, and the first sound insulation layer 34 abuts against the inner wall of the front bulkhead 1; optionally, the first sound insulation layer 34 is made of foam material, and the second sound insulation layer 35 is made of EVA material or POE material.

[0044] It should be noted that the foaming material is PU foam, which is polyurethane foam, mainly including polyurethane and polyolefins. Polyurethane foam is lightweight, heat-insulating, cold-insulating, and sound-insulating. EVA material is ethylene-vinyl acetate copolymer; POE is a polyolefin elastomer, and all of the above materials are existing technologies. In addition, the materials of the first sound insulation layer 34 and the second sound insulation layer 35 can also be selected according to actual needs.

[0045] It should be noted that the perforated sound insulation structure 3 and the front sound insulation layer 2 are an integral structure. The perforated sound insulation structure 3 and the front sound insulation layer 2 have the same material and number of layers. Similarly, the perforated sound insulation structure 3 also includes a first sound insulation layer 34 and a second sound insulation layer 35 stacked sequentially in the inner and outer directions. The materials of the first sound insulation layer 34 and the second sound insulation layer 35 can also be selected according to actual needs.

[0046] It should be understood that the radial dimension of the relief hole 21 is larger than the dimension of the mounting through hole 14. Therefore, the front panel 1 can expose an annular area at the relief hole 21, which facilitates the extension of the through hole sound insulation structure 3 to the annular area.

[0047] Specifically, when the through-hole sound insulation structure 3 extends to the annular area, it can ensure that the radial outer edge of the through-hole sound insulation structure 3 covers the gap in the hole wall of the mounting through-hole 14, thereby ensuring the sound insulation effect at the mounting through-hole 14.

[0048] Compared with the prior art, the sealing assembly for the through hole of the automotive front bulkhead provided in this application achieves a sealed connection between the through hole sound insulation structure 3 and the connector 11 by having the radial annular inner edge of the through hole sound insulation structure 3 abut against the connector 11. Furthermore, the through hole sound insulation structure 3 has a thickness extending into the vehicle compartment, which can extend the effective protection distance of the through hole sound insulation structure 3 in the inward and outward directions, increase the sound insulation coverage area, enhance the NVH sound insulation and absorption performance of the steering through hole, and enhance the sealing effect.

[0049] In addition, the through-hole sound insulation structure 3 and the front sound insulation layer 2 in this application are integrally connected, eliminating the need for separate sealing rings or sealing layer structures for each through hole, and eliminating the need for a steering shield structure. This reduces the cost of separate processing, production and assembly, and also helps to improve the integration of the automotive front assembly.

[0050] Therefore, the sealing assembly for the through hole of the automotive front bulkhead provided in this application can effectively improve the sealing effect at the mounting through hole 14 of the front bulkhead 1, effectively reduce the noise intensity of engine compartment noise entering the passenger compartment, effectively block the transmission of powertrain noise into the vehicle, and improve the overall vehicle comfort; moreover, it has a high degree of integration, which can reduce the number and types of various sealing accessories and reduce production and assembly costs, meeting the overall vehicle cost reduction requirements.

[0051] Please see Figure 2 In some possible embodiments, a cutting edge 4 is cut at the connection between the perforated sound insulation structure 3 and the front sound insulation layer 2, and the cutting edge 4 is semi-circular; and a first connecting part 5 is left between the two ends of the cutting edge 4 to ensure the integral connection between the perforated sound insulation structure 3 and the front sound insulation layer 2.

[0052] Specifically, the above-mentioned cut edge 4 is formed by cutting the integrated connection structure composed of the through-hole sound insulation structure 3 and the front sound insulation layer 2. When cutting, the integrated connection structure is not directly divided into two parts. Instead, the cutting line is made into a semi-circular shape, thereby forming the cut edge 4 at the cutting line. The cut edge 4 surrounds the through-hole sound insulation structure 3. The two unclosed ends on the semi-circular shape form a first connection part 5 to maintain the connection between the through-hole sound insulation structure 3 and the front sound insulation layer 2.

[0053] By setting the cutting edge 4, the perforated sound insulation structure 3 and the front sound insulation layer 2 can be separated. However, due to the first connecting part 5, the perforated sound insulation structure 3 and the front sound insulation layer 2 can still be integrated. By setting the cutting edge 4, the perforated sound insulation structure 3 can be opened at the cutting edge 4 when installing the connector 11, forming an opening that is easy to install, thereby improving the convenience of installation.

[0054] It should be understood that the perforated sound insulation structure 3 and the front sound insulation layer 2 are an integral connection structure. Therefore, when installing the small connector 11, the connector 11 can be directly inserted from the inside of the carriage into the annular inner hole of the installation perforation 14 and the perforated sound insulation structure 3, and the connector 11 and the radial inner edge of the perforated sound insulation structure 3 can be abutted.

[0055] However, for large connectors 11, the radial dimension of their installation location is small, or they are not suitable for direct insertion into the mounting through hole 14 and the annular inner hole of the through hole sound insulation structure 3. In this case, the above-mentioned cutting edge 4 can be provided in this application. By opening the through hole sound insulation structure 3 at the cutting edge 4, the through hole sound insulation structure 3 can be made into a flip-top structure. When installing, the through hole sound insulation structure 3 can be flipped open, and then one end of the connector 11 can be inserted into the mounting through hole 14, and the other end can be inserted into the annular inner hole of the through hole sound insulation structure 3.

[0056] Preferably, the central angle of the semi-circular structure formed by the cutting seam 4 is not less than 270°. Specifically, the specific size of the central angle of the semi-circular structure can be selectively set according to actual needs.

[0057] Please see Figure 2 In some embodiments, both ends of the cut edge 4 are provided with extended edge 7, which extend away from the sound insulation structure 3 through the hole; the two extended edge 7 are sandwiched on both sides of the first connecting part 5 so that the first connecting part 5 forms a structure that extends radially along the mounting through hole 14.

[0058] Specifically, the extension length of the extended seam 7 can be selectively set according to actual needs; preferably, the extension length of the extended seam 7 is not less than 5cm.

[0059] It should be understood that the aforementioned first connecting part 5 is sandwiched between the two extending seams 7; since the extending seams 7 extend away from the sound insulation structure 3, the extending direction of the first connecting part 5 is also intended to extend away from the sound insulation structure 3.

[0060] It should be noted that the direction away from the sound insulation structure 3 of the through hole can be simply understood as the radial direction away from the sound insulation structure 3 of the through hole 14.

[0061] By setting an extended edge seam 7, the separation line between the through-hole sound insulation structure 3 and the front sound insulation layer 2 is further increased, which facilitates further enlarging the opening of the through-hole sound insulation structure 3 and enhances the convenience of installation. In addition, the extension of the extended edge seam 7 further extends the length of the first connecting part 5, which can enhance the opening and closing toughness of the first connecting part 5 when the through-hole sound insulation structure 3 is opened and closed, and avoid the problem of excessive bending and damage to the first connecting part 5.

[0062] For example, the relative extension directions of the two extension seams 7 can be selectively set according to actual needs; the two extension seams 7 are set in parallel, or the two extension seams 7 gradually move away from each other in their extension directions.

[0063] Optionally, the two extended seams 7 are arranged in parallel so that the two sides of the formed first connecting portion 5 are parallel.

[0064] Optionally, the two extended seams 7 are inclined, and the distance between the two extended seams 7 gradually increases in the direction away from the sound insulation structure 3. At this time, the two sides of the first connecting part 5 formed are also inclined to each other.

[0065] Optionally, the two extended seams 7 are inclined, and the distance between the two extended seams 7 gradually decreases in the direction away from the sound insulation structure 3. At this time, the two sides of the first connecting part 5 formed are also inclined to each other.

[0066] Please see Figure 2 For example, the through-hole sound insulation structure 3 is also provided with a separation seam 6; one end of the separation seam 6 is connected to the cutting seam 4, and the other end extends to the radial annular inner edge of the through-hole sound insulation structure 3.

[0067] By setting the separation seam 6, an opening can be formed on the through-hole sound insulation structure 3, which facilitates the installation of the connector 11 at the opening of the through-hole sound insulation structure 3; and since one end of the through-hole sound insulation structure 3 is connected to the cutting seam 4, the cutting seam 4, the extension seam 7 and the separation seam 6 can be connected to form a larger overall opening, which facilitates the installation of the connector 11.

[0068] It should be understood that, in this application, by setting the separation seam 6, the through-hole sound insulation structure 3 is separated at the separation seam 6. When installing the connector 11, the connector 11 can be inserted into the annular inner hole of the through-hole sound insulation structure 3 from the separation seam 6.

[0069] The cutting seam 4, separating seam 6 and extending seam 7 in this application make the through-hole sound insulation structure 3 into a flip-top structure, which can increase the convenience of assembly.

[0070] Specifically, since one end of the separating seam 6 is connected to the cutting seam 4, the separating seam 6 divides the cutting seam 4 into two sub-seams, and the end of each sub-seam is connected to an extension seam 7.

[0071] As attached to this application Figure 3 As shown, when the connector 11 is a steering column, it is inconvenient to directly install the steering column into the perforated sound insulation structure 3 by inserting it. Therefore, the perforated sound insulation structure 3 can be opened from the separation seam 6, and the perforated sound insulation structure 3 can be further opened along the two end seams and the extension seam 7 until the entire perforated sound insulation structure 3 is lifted up. The perforated sound insulation structure is still connected to the front sound insulation layer 2 through the first connecting part 5.

[0072] At this time, the connector 11 can be inserted into the mounting hole 14 and fixed to the front panel 1; then the above-mentioned opened hole sound insulation structure 3 can be lowered so that the hole sound insulation structure 3 covers the mounting hole 14 and the annular inner edge of the hole sound insulation structure 3 abuts against the corresponding part of the connector 11.

[0073] Please see Figure 2 In some embodiments, the separation seam 6 and the first connecting portion 5 are distributed opposite to each other at the radial ends of the mounting through hole 14.

[0074] The separation seam 6 and the first connecting part 5 are symmetrically distributed at both ends of the radial direction of the mounting hole 14, which helps to balance the structural stress and improve the sound insulation performance.

[0075] Specifically, by symmetrically distributing the separation seam 6 and the first connecting part 5 at both ends of the mounting hole 14, the sound insulation structure 3 of the hole can be formed into two equal parts, which facilitates the enhancement of the symmetry of the sound insulation structure 3 of the hole and makes it easier to ensure that the two parts of the sound insulation structure 3 of the hole open to the same degree at the opening, thereby ensuring the convenience of installation.

[0076] It should be understood that when the sound insulation structure 3 of the through hole is lifted, the first connecting part 5 is bent and pressed into an arc shape by the sound insulation structure 3 of the through hole. Since the sound insulation structure 3 of the through hole is separated at the separation seam 6, both separated parts will press down on the first connecting part 5. When the separation seam 6 and the first connecting part 5 are symmetrically distributed at both ends of the radial direction of the mounting hole 14, the weight and size of the two separated parts can be made to be basically the same, so that the force on both sides of the first connecting part 5 is symmetrical and uniform, avoiding the problem of cracking or damage to the first connecting part 5 due to uneven force.

[0077] It should be understood that in this application, the cutting seam 4, the extension seam 7, and the separation seam 6 are formed by cutting, and the cutting seam 4, the extension seam 7, and the separation seam 6 are all provided through the vehicle body in the direction of the inside and outside, forming a cutting seam.

[0078] Please see Figure 3In some possible embodiments, the through-hole sound insulation structure 3 includes a second connecting portion 31 and an extension portion 32; the second connecting portion 31 is disposed at the mounting through-hole 14 and is integrally connected to the front sound insulation layer 2; the extension portion 32 is integrally connected to the second connecting portion 31 and extends into the carriage; wherein, the second connecting portion 31 and the extension portion 32 are both annular structures, and the radial annular inner edge of the second connecting portion 31 abuts against the connector 11.

[0079] By providing a second connecting part 31, a sealed connection between the through-hole sound insulation structure 3 and the connector 11 can be achieved. By providing an extension part 32, the sealing length in the inner and outer directions can be enhanced, thereby improving the sealing effect.

[0080] The second connecting part 31 is annular and is located near the front panel 1. It is used to abut against the outer peripheral wall of the connector 11 or against the mounting step surface of the connector 11.

[0081] It should be understood that the connector 11 typically needs to be fixed to the front bulkhead 1. Therefore, a stepped structure is provided on some connectors 11 to allow for the installation of fixing bolts. Consequently, a portion of the second connecting part 31 can abut against the stepped surface of its stepped structure to achieve a sealing and sound insulation effect. It should also be understood that the stepped structure of the connector 11 often extends between the second connecting part 31 and the front bulkhead 1, thus facilitating the abutment of the second connecting part 31 against the stepped surface of the stepped structure.

[0082] Please see Figure 1 and Figure 3 In some possible embodiments, for example, the extension 32 and the second connecting portion 31 are connected in a bottomless bowl-shaped structure.

[0083] By setting the extension 32 and the second connecting part 31 as a bowl-shaped structure, a transitional connection between the second connecting part 31 and the extension 32 can be achieved; and the bowl-shaped structure has a large bowl mouth cross-sectional size and a small bowl bottom interface size. Therefore, the bowl-shaped structure formed by the second connecting part 31 and the extension 32 can achieve a change in cross-sectional size from large to small, which is beneficial to improving the sound insulation and sealing effect.

[0084] It should be understood that the extension 32 and the second connecting part 31 form a bowl-shaped structure, which can form an arc transition between the extension 32 and the second connecting part 31. On the one hand, it can facilitate processing, and on the other hand, it can also ensure the connection strength at the connection point.

[0085] The bowl-shaped structure requires the aforementioned connector 11 to be inserted inside; therefore, the bowl-shaped structure is a bottomless structure.

[0086] Optionally, the end of the extension 32 facing the inside of the carriage is positioned as close as possible to the connector 11; preferably, the end of the extension 32 facing the inside of the carriage has an arc that bends and extends toward the connector 11.

[0087] For example, the axis of the connector 11 is arranged perpendicular to the surface of the front bulkhead 1; at this time, the extension 32 extends into the carriage along the axis of the connector 11, and the extension thickness of the extension 32 is equal in the direction of the vehicle body inside and outside.

[0088] By making the extension thickness of the extension portion 32 equal in the direction of the vehicle body inside and outside, the consistency of the sealing in the circumferential direction of the through hole sound insulation structure 3 can be improved, and the sealing effect of the through hole sound insulation structure 3 in the circumferential direction of the connector 11 can be effectively improved.

[0089] Please see Figure 3 In some possible embodiments, the axis of the connector 11 is inclined to the surface of the front bulkhead 1; defined in the inclined direction of the connector 11, the side of the connector 11 that extends into the vehicle compartment and is close to the front bulkhead 1 is the first side 12, and the other side opposite to the first side 12 is the second side 13; the extension 32 extends into the vehicle compartment along the axial direction of the connector 11, and the extension thickness of the extension 32 in the direction in and out of the vehicle body gradually increases from the second side 13 to the first side 12.

[0090] It should be understood that when the connector 11 is tilted relative to the surface of the front panel 1, the risk of sound and air leakage on the second side 13 is often greater, while the risk of sound and air leakage on the first side 12 is relatively smaller. Therefore, in this application, by reasonably setting the extension thickness of the extension 32 in the inner and outer directions, the protective consistency of the through-hole sound insulation structure 3 in the circumferential direction can be improved.

[0091] It should be understood that after the connector 11 extends into the carriage, it has a side closer to the front bulkhead 1, namely the first side 12, and a side relatively farther away from the front bulkhead 1, namely the second side 13. The description of the first side 12 and the second side 13 is a relative concept. For ease of understanding, please refer to the appendix of this application for details. Figure 3 The markings on the first side 12 and the second side 13 are in the middle.

[0092] By extending the extension 32 along the axial direction of the connector 11, the through-hole sound insulation structure 3 can be adapted to the connector 11 in different extension directions; the sealing effect of the through-hole sound insulation structure 3 in the axial direction of the connector 11 can be effectively improved.

[0093] Furthermore, since the connector 11 extends at an angle, the gap between the connector 11 and the first side 12 and the second side 13 of the mounting hole 14 is not equal. In this application, by making the extension thickness of the extension portion 32 gradually increase from the second side 13 to the first side 12, the sound insulation and sealing effect at the mounting hole 14 can be further improved.

[0094] Please see Figure 2 In some possible embodiments, the through-hole sound insulation structure 3 is provided with an inner and outer through-hole 33, and a fastener is inserted into the through-hole 33; and the wall of the through-hole 33 abuts against the outer peripheral wall of the fastener.

[0095] Specifically, the number of clearance holes 33 can be selectively set according to actual needs.

[0096] By setting the clearance hole 33, it is convenient to install the fastener, thereby realizing the fixation of the corresponding connector 11; and the hole wall of the clearance hole 33 abuts against the outer peripheral wall of the fastener, which can ensure the sealing effect at the clearance hole 33 and improve the sound insulation and noise reduction effect.

[0097] It should be understood that the clearance hole 33 is used to insert and fix the corresponding fastener, which can be a fixing bolt, fixing screw or locating pin, etc.

[0098] Specifically, the positions of the cutting edge 4, the extended edge 7, and the clearance hole 33 do not affect each other and can be selectively set according to actual needs. Optionally, when setting the cutting edge 4 and the extended edge 7, the cutting edge 4 and the extended edge 7 can be arranged to bypass the position of the clearance hole 33. Optionally, when setting the cutting edge 4 and the extended edge 7, the cutting edge 4 and the extended edge 7 can also be arranged to pass through the position of the clearance hole 33.

[0099] It should be understood that even if the cutting seam 4 and the extended seam 7 pass through the aforementioned clearance hole 33, they will not affect the fixing strength and connection strength of the fastener to the connector 11.

[0100] Based on the same inventive concept, this application also provides a vehicle that includes the sealing assembly for the above-mentioned automobile front bulkhead through hole.

[0101] The vehicle provided in this application, having the sealing assembly for the aforementioned automotive front panel through hole, possesses all the beneficial effects of the aforementioned automotive front panel through hole sealing assembly. It can effectively improve the sealing effect at the mounting through hole 14 of the front panel 1, reduce the noise intensity of engine compartment noise entering the passenger compartment, effectively block the transmission of powertrain noise into the vehicle, and improve the overall vehicle comfort.

[0102] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sealing assembly for a through hole in a car front bulkhead, characterized in that, include: The front panel (1) has an internally and externally through mounting hole (14), in which a connector (11) is inserted; A front sound insulation layer (2) covers the inner side of the front panel (1) and has a clearance hole (21) opposite to the mounting through hole (14), wherein the diameter of the clearance hole (21) is larger than the diameter of the mounting through hole (14). as well as The through-hole sound insulation structure (3) covers the relief hole (21) in a ring shape and has a thickness that extends into the carriage. The radial annular inner edge of the perforated sound insulation structure (3) abuts against the connector (11); the radial annular outer edge of the perforated sound insulation structure (3) is integrally connected with the front sound insulation layer (2).

2. The sealing assembly for the through-hole in the automotive front bulkhead as described in claim 1, characterized in that, The connection between the perforated sound insulation structure (3) and the front sound insulation layer (2) is cut with a slit (4), which is semi-circular; and a first connection part (5) is left between the two ends of the slit (4) to ensure the integral connection between the perforated sound insulation structure (3) and the front sound insulation layer (2).

3. The sealing assembly for the through-hole in the automotive front bulkhead as described in claim 2, characterized in that, Both ends of the cut edge (4) are provided with extension edge (7), and the extension edge (7) extends away from the through hole sound insulation structure (3); the two extension edge (7) are sandwiched on both sides of the first connecting part (5) so that the first connecting part (5) forms a structure that extends radially along the mounting through hole (14).

4. The sealing assembly for the through-hole in the automotive front bulkhead as described in claim 2 or 3, characterized in that, The perforated sound insulation structure (3) is also provided with a separation seam (6); one end of the separation seam (6) is connected to the cutting seam (4), and the other end extends to the radial annular inner edge of the perforated sound insulation structure (3).

5. The sealing assembly for the through hole in the automotive front bulkhead as described in claim 4, characterized in that, The separation seam (6) is distributed at both ends of the mounting through hole (14) opposite to the first connecting part (5).

6. The sealing assembly for the through-hole in the automotive front bulkhead as described in claim 1, characterized in that, The through-hole sound insulation structure (3) includes: The second connecting part (31) is provided at the mounting hole (14) and is integrally connected with the front sound insulation layer (2); The extension (32) is integrally connected to the second connecting part (31) and extends into the carriage; The second connecting part (31) and the extension part (32) are both annular structures, and the radial annular inner edge of the second connecting part (31) abuts against the connector (11).

7. The sealing assembly for the through-hole in the automotive front bulkhead as described in claim 6, characterized in that, The extension (32) and the second connecting part (31) are connected in a bottomless bowl-shaped structure.

8. The sealing assembly for the through-hole in the automotive front bulkhead as described in claim 7, characterized in that, The axis of the connector (11) is inclined to the surface of the front panel (1); Defined in the inclined direction of the connector (11), the side of the connector (11) that extends into the carriage and is close to the front panel (1) is the first side (12), and the other side opposite to the first side (12) is the second side (13). The extension (32) extends into the carriage along the axial direction of the connector (11); the extension thickness of the extension (32) in the direction inward and outward of the vehicle body gradually increases from the first side (12) to the second side (13).

9. The sealing assembly for the through-hole in the automotive front bulkhead as described in claim 1, characterized in that, The through-hole sound insulation structure (3) is provided with an inner and outer through-hole (33), and a fastener is inserted in the through-hole (33); and the wall of the through-hole (33) abuts against the outer peripheral wall of the fastener.

10. A vehicle, characterized in that, Includes a sealing assembly for a through hole in a vehicle front bulkhead as described in any one of claims 1-9.

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