Steering column sealing assembly and vehicle with same

Abstract

The embodiment of the invention provides a steering column sealing assembly and a vehicle with the same, and relates to the technical field of automobile parts. The steering column seal assembly includes: a steering column; an intermediate shaft via hole is formed in the front baffle, and the steering column penetrates through the intermediate shaft via hole to extend; the first sealing mechanism comprises a sealing cover and a sealing convex lip, the sealing cover is provided with a containing space with two through ends, part of the steering column is located in the containing space, one end of the sealing cover is connected with the steering gear, and the other end of the sealing cover is arranged towards the front baffle; at least part of the sealing convex lip extends in the axial direction of the steering column, one end of the sealing convex lip is connected with the sealing cover, and the other end of the sealing convex lip penetrates through the middle shaft via hole, extends to the side, away from the sealing cover, of the front baffle and is connected with the front baffle. The technical problem that in the prior art, a sealing protective cover of a steering column is poor in noise reduction effect is solved.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and more specifically, to a steering column sealing assembly and a vehicle having the same. Background Technology

[0002] The steering column assembly of an automobile requires the installation of a sealing cover and protective sleeve assembly. The main function of the sealing cover and protective sleeve assembly is to block the passage holes on the front baffle to prevent dust, sand, mud, noise, or other substances from entering the cab through the front baffle holes at the bottom of the cab and affecting the driver's normal operation.

[0003] However, with economic development and improved living standards, people's demands for cars are also increasing. They not only require spacious interiors and aesthetically pleasing exteriors and interiors, but also comfort, low noise levels, and even no noise at all. A significant portion of in-car noise originates from the tires and engine, and tire and engine noise can enter the cabin through poorly sealed or poorly noise-reducing areas. If the steering column's sealing cover is ineffective at reducing noise, noise will enter the cabin through the front panel openings, affecting the interior environment. The sealing cover impacts the car's NVH performance (Noise, Vibration, Harshness), causing sensory discomfort for users, affecting user evaluation, leaving a negative impression of product quality, and lowering users' overall perception of the vehicle's quality.

[0004] There is currently no good solution to the above problems. Summary of the Invention

[0005] This application provides a steering column sealing assembly and a vehicle having the same, to at least solve the technical problem of poor noise reduction effect of the steering column sealing cover in the prior art.

[0006] According to one aspect of the embodiments of this application, a steering column sealing assembly is provided, comprising: a steering column; a front baffle having an intermediate shaft through hole, through which the steering column extends; and a first sealing mechanism including a sealing cover and a sealing lip, the sealing cover having a receiving space through which both ends are disposed, a portion of the steering column being located within the receiving space, one end of the sealing cover being connected to a steering gear, and the other end of the sealing cover being disposed towards the front baffle; wherein at least a portion of the sealing lip extends axially along the steering column, one end of the sealing lip being connected to the sealing cover, and the other end of the sealing lip extending through the intermediate shaft through hole to the side of the front baffle away from the sealing cover and being connected to the front baffle.

[0007] Furthermore, at least one of the sealing cover and the sealing lip is made of rubber.

[0008] Furthermore, the end of the sealing lip that connects to the front baffle forms an annular protrusion structure. The annular protrusion structure extends circumferentially along the sealing lip and is multi-layered. The multi-layered annular protrusion structures are arranged at intervals along the radial direction of the sealing lip.

[0009] Furthermore, the inner wall of the sealing cover is positioned at a distance from the steering column.

[0010] Furthermore, the steering column sealing assembly also includes a second sealing mechanism, which includes a sealing sleeve connected to the side of the front baffle away from the sealing cover. The sealing sleeve and the front baffle form a sound insulation cavity. An avoidance hole is provided on the sealing sleeve, and a portion of the steering column passes through the avoidance hole and is located in the sound insulation cavity. The sealing sleeve is used to block the noise generated by the steering column in the sound insulation cavity.

[0011] Furthermore, the sealing sleeve is disposed in contact with at least a portion of the surface of the front baffle, or the sealing sleeve is disposed protruding from the surface of the front baffle.

[0012] Furthermore, the second sealing mechanism also includes a connector that is connected to the sealing sleeve. The connector is positioned at a distance along the circumference of the sealing sleeve and is used to connect and fix the sealing sleeve to the front baffle.

[0013] Furthermore, along the circumference of the sealing sleeve, the sealing sleeve has at least two connection positions, each connection position having a connector, the connector including a metal connector and a polymer connector, with some connection positions having a metal connector and others having a polymer connector, wherein the metal connector is used to provide torque.

[0014] Furthermore, the steering column sealing assembly also includes a third sealing mechanism, which includes a sealing gasket connected to the side of the front baffle away from the sealing cover. The sealing gasket is connected to the front baffle via a polymer connector.

[0015] According to another aspect of the embodiments of this application, a vehicle is also provided, the vehicle having a steering column sealing assembly, the steering column sealing assembly being the aforementioned steering column sealing assembly.

[0016] In this embodiment, a sealing cover is used to enclose a receiving space, within which the steering column is located. One end of the sealing cover is connected to the connection end between the steering column and the steering gear, thus blocking one end of the receiving space. The other end of the sealing cover is connected to the front baffle via a sealing lip. The other end of the receiving space is then connected to the edge of the intermediate shaft through-hole via the sealing lip, allowing the receiving space to communicate with the other side of the front baffle through the intermediate shaft through-hole. The first sealing mechanism, through the cooperation of the sealing cover and the sealing flange, prevents frictional noise between components located on the outside of the front baffle at the bottom of the driver's compartment, as well as dust and mud from outside the driver's compartment, from entering the driver's compartment through the intermediate shaft through-hole, thus improving the NVH performance and enhancing the user experience. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of an optional steering column sealing assembly according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of an optional second sealing mechanism according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of an optional steering column sealing assembly according to an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of an optional third sealing mechanism according to an embodiment of this application;

[0022] Figure 5 This is a schematic diagram of an optional first sealing mechanism according to an embodiment of this application;

[0023] Figure 6 This is a schematic diagram of an optional first sealing mechanism according to an embodiment of this application.

[0024] The above figures include the following reference numerals:

[0025] 10. Steering column;

[0026] 20. Front fender;

[0027] 30. First sealing mechanism;

[0028] 31. Sealing cover;

[0029] 310. Accommodation space;

[0030] 32. Sealing lip;

[0031] 321. Annular protrusion structure;

[0032] 40. Steering gear;

[0033] 50. Second sealing mechanism;

[0034] 51. Sealing sleeve;

[0035] 510. Clearance hole;

[0036] 52. Connecting parts;

[0037] 520, Connection bit;

[0038] 521. Metal connectors;

[0039] 522. Polymer connectors;

[0040] 60. Third sealing mechanism;

[0041] 61. Sealing gasket. Detailed Implementation

[0042] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0043] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0044] According to an embodiment of this application, a steering column sealing assembly is provided.

[0045] Specifically, such as Figure 1 , Figure 3 , Figure 5 , Figure 6 As shown, the steering column sealing assembly includes a steering column 10, a front baffle 20, and a first sealing mechanism 30. The front baffle 20 has an intermediate shaft through hole, through which the steering column 10 extends. The first sealing mechanism 30 includes a sealing cover 31 and a sealing lip 32. The sealing cover 31 has a receiving space 310 through which both ends are provided. A portion of the steering column 10 is located in the receiving space 310. One end of the sealing cover 31 is connected to the steering gear 40, and the other end of the sealing cover 31 is disposed towards the front baffle 20. At least a portion of the sealing lip 32 extends axially along the steering column 10. One end of the sealing lip 32 is connected to the sealing cover 31, and the other end of the sealing lip 32 extends through the intermediate shaft through hole to the side of the front baffle 20 away from the sealing cover 31 and is connected to the front baffle 20.

[0046] Applying the technical solution of this embodiment, a receiving space 310 is formed by a sealing cover 31, with the steering column 10 located within the receiving space 310. One end of the sealing cover 31 is connected to the connection end between the steering column 10 and the steering gear 40, at which point the steering gear 40 blocks one end of the receiving space 310. The other end of the sealing cover 31 is connected to the front baffle 20 through a sealing lip 32. At this time, the other end of the receiving space 310 is connected to the edge of the intermediate shaft through hole through the sealing lip 32, so that the receiving space 310 and the other side of the front baffle 20 are connected through the intermediate shaft through hole. The first sealing mechanism 30, through the cooperation of the sealing cover 31 and the sealing lip 32, can prevent friction noise between components located on the outside of the front baffle 20 at the bottom of the driver's cabin and prevent dust and mud from the outside of the driver's cabin from entering the driver's cabin through the intermediate shaft through hole, thus affecting the in-vehicle environment, thereby improving NVH performance and enhancing the user experience.

[0047] It should be noted that the first sealing mechanism 30 can also be applied to other through holes opened on the front baffle 20, or to other through holes connecting the vehicle body and the cab, in order to ensure the sealing of the cab and improve the overall NVH performance.

[0048] In one embodiment of this application, both the sealing cover 31 and the sealing lip 32 are made of polymer materials, wherein at least one of the sealing cover 31 and the sealing lip 32 is made of rubber. The polymer material provides an effective sealing effect, reducing noise from entering the cab through the intermediate shaft through-hole. Preferably, the sealing cover 31 is made of PP plastic (polypropylene), and the sealing lip 32 is made of rubber. PP plastic has high strength, rigidity, and chemical corrosion resistance, while being relatively inexpensive and easy to process and mold. Using PP plastic to make the sealing cover 31 ensures the stability and durability of this part of the structure, resisting the erosion of external environmental factors such as oil, water vapor, and ultraviolet rays. At the same time, the rigidity of PP plastic also helps to maintain the shape of the sealing cover and prevent deformation during vehicle operation. The sealing lip 32 is made of rubber because rubber has excellent elasticity, wear resistance, and sealing performance. When the steering column 10 is working, the sealing lip 32 will continuously rub against the front fender 20 of the vehicle body or other contact surfaces. The elasticity of rubber can ensure good contact under dynamic conditions. Even if there is a small displacement or vibration during steering, it can maintain the sealing state through deformation recovery, effectively blocking external noise and dust from entering the cab. At the same time, the wear resistance of rubber can extend the service life of the seals and reduce the problems of seal failure and increased noise caused by wear.

[0049] In one embodiment of this application, the sealing lip 32 is made of rubber material. During the installation of the first sealing mechanism 30, it is only necessary to align the sealing lip 32 with the intermediate shaft through hole or other hole that needs to be sealed, apply pressure to the sealing lip 32 from the other side, and press or press the sealing lip 32 against the front baffle 20. The sealing of the intermediate shaft through hole can be achieved by the deformation of the rubber material.

[0050] Furthermore, such as Figure 5 , Figure 6 As shown, the end of the sealing lip 32 connected to the front baffle 20 forms an annular protrusion structure 321. The annular protrusion structure 321 extends circumferentially along the sealing lip 32, and is multi-layered. These multi-layered annular protrusion structures 321 are spaced apart radially along the sealing lip 32. Designing the annular protrusion structure 321 as multi-layered, with these layers spaced apart radially along the sealing lip 32, is based on a multi-layered sealing principle to further improve sound insulation and sealing performance. Each layer of the annular protrusion structure 321 deforms under pressure, tightly fitting against the front baffle 20 to form multiple sealing points. Even if the sealing effect of one layer decreases due to wear or aging, the other layers can still maintain a seal, thus ensuring long-term sound insulation.

[0051] It should be noted that one end of the sealing lip 32 is provided with a multi-layered annular protrusion structure 321. This allows for effective sealing with the required through-hole, regardless of its size. When the sealing lip 32 is connected to the intermediate shaft through-hole or other shaft holes on the front baffle 20, the multi-layered annular protrusion structure 321 of the sealing lip 32 forms a seal by abutting against the edge of the shaft hole with a corresponding layer of annular protrusion structure 321, based on the diameter of the shaft hole. Simultaneously, the multiple annular protrusion structures 321 increase the contact area between the sealing lip 32 and the front baffle 20, improving sealing reliability, effectively dispersing pressure, reducing the load on individual sealing points, extending the service life of the seal, and preventing seal failure during long-term use.

[0052] Furthermore, the inner wall of the sealing cover 31 is positioned at a distance from the steering column 10. Maintaining space between the sealing cover 31 and the steering column 10 reduces the effect of noise transmission through the solid structure. Since the steering column 10 rotates during operation, direct contact between the sealing cover 31 and the steering column 10 would generate friction and additional noise (i.e., this arrangement avoids friction between metal and non-metal contact), and would also affect the steering capability of the steering column 10.

[0053] Furthermore, such as Figure 1 , Figure 2 As shown, the steering column sealing assembly also includes a second sealing mechanism 50, which includes a sealing sleeve 51. The sealing sleeve 51 is connected to the side of the front baffle 20 away from the sealing cover 31. The sealing sleeve 51 and the front baffle 20 enclose a sound insulation cavity. A clearance hole 510 is provided on the sealing sleeve 51, and a portion of the steering column 10 passes through the clearance hole 510 and is located inside the sound insulation cavity. The sealing sleeve 51 is used to block the noise generated by the steering column 10 inside the sound insulation cavity. The connection between the sealing sleeve 51 and the front baffle 20, together forming a sound insulation cavity, can capture and reduce the noise emitted by the internal components of the steering column 10 during steering operations. The sound insulation cavity can be regarded as a closed or semi-closed acoustic isolation space. Sound can undergo multimodal reflections inside the sound insulation cavity, which greatly attenuates the noise inside the sound insulation cavity and reduces its energy that directly penetrates into the driver's cabin. The clearance hole 510 provided on the sealing sleeve 51 allows the steering column 10 to pass through the sound insulation cavity while partially blocking it. By adding a second sealing mechanism 50 on top of the first sealing mechanism 30, sealing mechanisms are provided on both sides of the front baffle 20, achieving a double-layer sealing and sound insulation effect. This further improves the NVH performance of the cab and reduces the noise generated by the steering column 10 during operation.

[0054] In one embodiment of this application, the sealing sleeve 51 is disposed in close contact with at least a portion of the surface of the front baffle 20. When the sealing sleeve 51 is disposed in close contact with at least a portion of the surface of the front baffle 20, a continuous sealing interface can be formed through their close contact (at which point the connection between the two is flush), which can minimize the intrusion of noise and external environmental factors (such as dust and moisture). This arrangement ensures that there is no obvious gap between the sealing sleeve 51 and the front baffle 20, and good sealing performance can be maintained even when the steering column 10 vibrates during operation. It should be noted that the close contact arrangement is suitable for scenarios with sufficient space (and where the front baffle 20 itself can form a sound insulation cavity) and where high-strength sealing and sound insulation are required. In this embodiment, a recess is formed on the side of the front baffle 20 facing the first sealing mechanism 30, and the recess itself forms a sound insulation cavity. The sealing sleeve 51 is in close contact with the other parts of the front baffle 20 except for the recess to form a good seal.

[0055] In another embodiment of this application, the sealing sleeve 51 protrudes from the surface of the front baffle 20. This protrusion of the sealing sleeve 51 forms a three-dimensional sound-insulating cavity sealing structure, providing an additional sealing layer in the narrow space between the steering column 10 and the front baffle 20. Even during steering operations or vehicle bumps, the sealing sleeve 51 remains in contact with the front baffle 20, preventing noise from entering the cab through the gap. The protrusion also provides a buffering effect, reducing direct hard contact between the steering column 10 and the front baffle 20, thereby further reducing noise generation.

[0056] Furthermore, such as Figure 1 , Figure 2 As shown, the second sealing mechanism 50 also includes a connector 52, which is connected to the sealing sleeve 51. The connector 52 is spaced apart along the circumference of the sealing sleeve 51 and is used to connect and fix the sealing sleeve 51 to the front baffle 20. The connector 52 ensures that the sealing sleeve 51 is firmly fixed to the front baffle 20, preventing displacement or loosening due to vibration or bumps during vehicle operation. The connectors 52 are evenly distributed along the circumference of the sealing sleeve 51, and the sealing sleeve 51 can be connected to the front baffle 20 by setting the connectors 52 at key points, which can reduce the number of connectors 52 and reduce weight.

[0057] Specifically, such as Figure 1 , Figure 2As shown, along the circumference of the sealing sleeve 51, the sealing sleeve 51 has at least two connection positions 520, and each connection position 520 is provided with a connector 52. The connector 52 includes a metal connector 521 and a polymer connector 522. Some connection positions 520 are provided with metal connectors 521, and other connection positions 520 are provided with polymer connectors 522. The metal connector 521 is used to provide torque. Each connection position 520 is used to provide one connector 52. The connection positions 520 are arranged along the circumference of the sealing sleeve 51, so that the connectors 52 can be provided only in key locations as needed to satisfy the function of fixing the sealing sleeve 51. The connectors 52 are divided into metal connectors 521 and polymer connectors 522. The metal connectors 521 can provide high strength and high robustness, and can provide the necessary torque. Therefore, the metal connectors 521 can be provided at the points where the sealing sleeve 51 requires high-strength connection to ensure that the sealing sleeve 51 can still be firmly fixed to the front baffle 20 when vibration and impact occur during vehicle operation. At other fixed points, only lightweight polymer connectors 522 are installed. These polymer connectors 522 possess good elasticity and toughness, which can mitigate or absorb vibration and impact. They can also fill the gap between the sealing sleeve 51 and the front baffle 20 to improve the sealing performance of the sealing sleeve 51 and provide auxiliary fixing force. By using a combination of metal connectors 521 and polymer connectors 522, the advantages of both are combined. The metal connector 521 provides rigid fixation and torque transmission, while the polymer connector 522 provides flexibility and vibration absorption. This combination not only enhances the fixing effect of the sealing sleeve 51 but also optimizes sound insulation performance, reduces the generation of structurally transmitted noise, and further improves the vehicle's NVH performance.

[0058] In one embodiment of this application, the metal connector 521 uses screws to fix the sealing sleeve 51 to the high-strength connection position 520. The polymer connector 522 can be a plastic clip (or screw), an elastic clamp, or an adhesive. The polymer connector 522 can be used to bond or snap other parts of the sealing sleeve 51 to the front baffle 20.

[0059] Furthermore, such as Figure 4As shown, the steering column sealing assembly also includes a third sealing mechanism 60, which includes a sealing gasket 61. The sealing gasket 61 is connected to the side of the front baffle 20 away from the sealing cover 31. The sealing gasket 61 is connected to the front baffle 20 via a polymer connector 522. The sealing gasket 61 provides additional sealing and sound insulation on another plane, forming another layer of isolation, which can better block the intrusion of noise, dust and other external environmental elements, especially at the joint between the steering column 10 and the front baffle 20, which can significantly improve NVH performance. The sealing gasket 61 is also connected to the front baffle 20 using a polymer connector 522, which not only increases its sealing performance but also improves the adaptability of the sealing gasket 61, that is, the sealing gasket 61 can be flexibly assembled under different vehicle models and different front baffle 20 structures. The third sealing mechanism 60, together with the first sealing mechanism 30 and the second sealing mechanism 50, is installed on the front baffle 20 to form a three-layer sealing sound insulation system. When the three sealing mechanisms work together, they can significantly improve the sound insulation effect and dustproof and waterproof performance of the entire steering column sealing assembly, creating a quieter and cleaner environment for the cab.

[0060] According to another specific embodiment of this application, a vehicle is provided, which has a steering column sealing assembly, the same steering column sealing assembly as described in the above embodiment. By applying the aforementioned steering column sealing assembly to a vehicle, and integrating a three-layer sealing structure, the vehicle's sound insulation, dustproofing, and waterproofing effects are ensured. Through the synergistic action of the first, second, and third sealing mechanisms, the steering column sealing assembly forms an effective sound barrier, reducing the impact of engine noise, wind noise, and road noise on the cab. This significantly improves the vehicle's driving comfort and NVH performance, providing users with a quieter and more comfortable driving experience.

[0061] This application also provides a preferred embodiment of a steering column sealing assembly, which can reduce engine and other front cabin noise transmitted to the driver's cab and also prevent other sealing covers 31 from directly contacting the steering column 10.

[0062] Specifically, the sealing cover 31 of the first sealing mechanism 30 is made of PP plastic, and the sealing lip 32 is made of rubber. The sealing sleeve 51 of the second sealing mechanism 50 is made of PP-T20 (polyester propylene). The sealing cover 31 and the sealing lip 32 are sequentially mounted on the steering gear 40 and the front baffle 20. Pressure is used to deform the rubber of the sealing lip 32 of the first sealing mechanism 30, forming the first layer of sound insulation seal. The sealing gasket 61 of the third sealing mechanism 60 is connected to the front baffle 20 for the second layer of sound insulation seal. The sealing sleeve 51 of the second sealing mechanism 50 is fixed to the front baffle 20 by studs using metal connectors 521 and polymer connectors 522. Simultaneously, polymer connectors 522 are adhered to the sealing gasket 61 for the third layer of sound insulation seal. The overall design provides dust protection and a more aesthetically pleasing appearance.

[0063] The assembly steps for the steering column seal assembly are as follows:

[0064] First, the sealing cover 31 of the first sealing mechanism 30 is assembled onto the steering column 10. Then, the sealing lip 32 is fixed onto the front baffle 20, and the rubber on the sealing lip 32 is deformed by pressure to form the first layer of sound insulation sealing structure. The sealing gasket 61 is connected to the front baffle 20 through the polymer connector 522 to form the second layer of sound insulation sealing structure. The accelerator pedal bracket is assembled onto the sealing gasket 61, and then the sealing sleeve 51 of the second sealing mechanism 50 is assembled onto the sealing gasket 61 through the connector 52. It is then fixed with metal nuts and plastic nuts using the welding bolts on the front baffle 20. At the same time, the sealing sleeve 51 is glued and fixed to the polymer connector 522 on the sealing gasket 61 through the polymer connector 522 to form the third layer of sound insulation sealing. Sound insulation is achieved through the three-layer sealing structure to meet NVH requirements.

[0065] Specifically, the first sealing mechanism 30 and the third sealing mechanism 60 are used to absorb the sound leakage from the intermediate shaft through hole and the body sheet metal joint, with a sound leakage amount ≤15dB, so as to reduce the engine and other front cabin noise transmitted to the cab and effectively improve the NVH comfort of the cab; the second sealing mechanism 50 absorbs the sound leakage from the intermediate shaft through hole and the body sheet metal joint through the sealing sleeve 51 structure, with a sound leakage amount ≤3dB.

[0066] As can be seen from the above description, the steering column sealing assembly in the above embodiments has the following beneficial effects:

[0067] 1) It achieves a three-layer sealing structure for sound insulation, dustproofing, and waterproofing, with excellent sealing performance.

[0068] 2) Solve the problem of poor contact between the seal and the steering column with intermediate shaft assembly, which causes friction noise during rotation.

[0069] 3) Solve the problem of abnormal noise from the internal sealing ring of the protective cover after its durability deteriorates due to aging.

[0070] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0071] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0072] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A steering column sealing assembly, characterized in that, include: Steering column (10); A front baffle (20) is provided with an intermediate shaft through hole, and the steering column (10) extends through the intermediate shaft through hole; The first sealing mechanism (30) includes a sealing cover (31) and a sealing lip (32). The sealing cover (31) has a receiving space (310) through both ends. A portion of the steering column (10) is located in the receiving space (310). One end of the sealing cover (31) is connected to the steering gear (40), and the other end of the sealing cover (31) is disposed towards the front baffle (20). At least a portion of the sealing lip (32) extends axially along the steering column (10), one end of the sealing lip (32) is connected to the sealing cover (31), and the other end of the sealing lip (32) extends through the intermediate shaft through hole to the side of the front baffle (20) away from the sealing cover (31) and is connected to the front baffle (20).

2. The steering column sealing assembly according to claim 1, characterized in that, At least one of the sealing cover (31) and the sealing lip (32) is made of rubber.

3. The steering column sealing assembly according to claim 2, characterized in that, The sealing lip (32) is connected to the front baffle (20) at one end to form an annular protrusion structure (321). The annular protrusion structure (321) extends circumferentially along the sealing lip (32). The annular protrusion structure (321) is multi-layered, and the multi-layered annular protrusion structures (321) are arranged at a distance along the radial direction of the sealing lip (32).

4. The steering column sealing assembly according to any one of claims 1 to 3, characterized in that, The inner wall of the sealing cover (31) is positioned at a distance from the steering column (10).

5. The steering column sealing assembly according to claim 1, characterized in that, The steering column sealing assembly further includes a second sealing mechanism (50), which includes a sealing sleeve (51). The sealing sleeve (51) is connected to the side of the front baffle (20) away from the sealing cover (31). The sealing sleeve (51) and the front baffle (20) form a sound insulation cavity. The sealing sleeve (51) has a clearance hole (510). A portion of the steering column (10) passes through the clearance hole (510) and is located in the sound insulation cavity. The sealing sleeve (51) is used to block the noise generated by the steering column (10) in the sound insulation cavity.

6. The steering column sealing assembly according to claim 5, characterized in that, The sealing sleeve (51) is disposed in contact with at least a portion of the surface of the front baffle (20), or the sealing sleeve (51) is disposed protruding from the surface of the front baffle (20).

7. The steering column sealing assembly according to claim 5 or 6, characterized in that, The second sealing mechanism (50) further includes a connector (52) connected to the sealing sleeve (51). The connector (52) is arranged at a distance along the circumference of the sealing sleeve (51) and is used to connect and fix the sealing sleeve (51) to the front baffle (20).

8. The steering column sealing assembly according to claim 7, characterized in that, Along the circumference of the sealing sleeve (51), the sealing sleeve (51) has at least two connection positions (520), and each connection position (520) is provided with a connector (52), the connector (52) including a metal connector (521) and a polymer connector (522), a portion of the connection positions (520) is provided with the metal connector (521) and another portion of the connection positions (520) is provided with the polymer connector (522), wherein the metal connector (521) is used to provide torque.

9. The steering column sealing assembly according to claim 8, characterized in that, The steering column sealing assembly further includes a third sealing mechanism (60), which includes a sealing gasket (61) connected to the side of the front baffle (20) away from the sealing cover (31). The sealing gasket (61) is connected to the front baffle (20) via the polymer connector (522).

10. A vehicle, characterized in that, The vehicle has a steering column sealing assembly, which is the steering column sealing assembly according to any one of claims 1-9.

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