A-pillar sealing noise reduction assembly and automobile thereof

Abstract

This invention discloses an A-pillar sealing and noise reduction component and its automotive counterpart in the field of automotive door sealing technology. The component includes a triangular sealing strip shaped like a flag, which is mounted on the door guide rail between the front door and the A-pillar to constrain and support the sliding of the window glass. The triangular sealing strip includes a sealing corner portion, the lower edge of which is in contact with an outer water deflector mounted on the door sheet metal stop, and its upper edge abuts against a bubble tube of a side panel sealing strip arranged on the outer side panel of the vehicle when the door is closed. Multiple sets of support ribs are arranged on the inner wall of the sealing corner portion. This invention optimizes the matching relationship between the triangular sealing strip, the side panel sealing strip, and the outer water deflector, and provides multiple sets of support ribs on the inner wall of the sealing corner portion to support the triangular sealing strip mounted on the door, thereby reducing wind noise intrusion and improving the sealing performance of the A-pillar area.

Description

TECHNICAL FIELD

[0001] The application relates to an A-pillar sealing noise reduction assembly and a car thereof, and belongs to the technical field of car door sealing. BACKGROUND

[0002] With the rapid development of the new energy automobile industry, the appearance of the car is becoming more and more young, and the novel frameless door structure has become the direction of the efforts of many car enterprises. The sealing system on the front side of the door plays an important role in sound insulation and noise reduction in the A-pillar area. New energy vehicles have the advantages of high performance, low noise and low pollution, and have become a hot spot widely concerned by the international community. How to improve the noise reduction performance of the area is one of the important factors affecting the user's evaluation of the sound insulation quality of the whole vehicle.

[0003] The sealing strip in the A-pillar area of the traditional framed door is mainly composed of an inner and outer water cutting sealing strip and a triangular block sealing strip as the first noise reduction sealing piece. Since there is no upper door frame structure in the frameless door, the cooperation and lapping between the sealing strips in the A-pillar area need to be more precise. However, in the existing structure, the structure design of the sealing strip is limited, and the support rib inside the sealing strip is not reasonably designed. Especially during high-speed driving, the sealing performance of the A-pillar area will be greatly reduced, which seriously affects the driving experience of consumers. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art, and to provide an A-pillar sealing noise reduction assembly and a car thereof, which solves the problem of local deformation failure of the sealing strip in the A-pillar area during high-speed driving affecting the sealing performance of the whole vehicle through structure optimization.

[0005] To achieve the above-mentioned purpose, the application adopts the following technical scheme:

[0006] In a first aspect, the application provides an A-pillar sealing noise reduction assembly, comprising a triangular block sealing strip in the shape of a flag, which is assembled at the door guide rail between the front door and the A-pillar, and provides constraint support for the sliding of the window glass. The triangular block sealing strip comprises a sealing corner part, the lower edge of the sealing corner part is in close contact with the outer weather strip assembled on the door panel stop, and the upper edge is in abutting contact with the bubble tube of the side wall sealing strip arranged on the outer panel of the automobile side wall when the door is closed. The inner wall of the sealing corner part is provided with a plurality of support ribs.

[0007] Further, the sealing corner part is provided with a triangular protruding area downward along the side wall sealing strip in the lower area of the side wall sealing strip, the lower edge of the triangular protruding area is provided with a trapezoidal stepped surface for cooperation and installation with the outer weather strip, and the trapezoidal stepped surface is provided with a closed-cell sponge for plugging the contact gap between the sealing corner part and the outer weather strip.

[0008] Further, the lower edge of the sealing corner part is provided with two meat nails fixed to the automobile sheet metal, and a first group of support ribs is arranged between the two meat nails, the first group of support ribs includes multiple vertical bosses, and each boss has an arch structure with thin ends and a thick middle.

[0009] Further, the lower edge of the sealing corner part is provided with a circular arc transition area away from the meat nails, and a second group of support ribs is arranged at the circular arc transition area, the second group of support ribs includes multiple horizontal trapezoidal prisms, which support the sealing corner part in the vertical direction.

[0010] Further, the surface of the sealing corner part is provided with a through hole, and multiple groups of support ribs are distributed around the through hole.

[0011] Further, the sealing corner part is provided with a third group of support ribs towards the sharp corner area, the third group of support ribs includes multiple short bosses extending from the upper right edge of the sealing corner part to the through hole, which limits the deformation of the sealing corner part and the side wall sealing strip in the longitudinal direction, the third group of support ribs is provided with a fourth group of support ribs at the position extending in the opposite direction of the longitudinal direction, the fourth group of support ribs includes multiple square bosses, which provide support for the triangular block installed on the through hole.

[0012] Further, the fourth group of support ribs is provided with a fifth group of support ribs at the position extending in the transverse direction, the fifth group of support ribs includes three bosses arranged in steps along the ROOF segment, and each boss is spaced apart by 5mm, the right side of the fifth group of support ribs is provided with a sixth group of support ribs for limiting the longitudinal assembly of the sealing corner part.

[0013] Further, the sealing corner part extends downward in the vertical direction to generate a sealing straight section part for limiting the sliding of the glass, the sealing straight section part includes a U-shaped guide groove body, the guide groove body is matched with the shape of the door guide rail and is assembled on the door guide rail, an outer lip is arranged outwardly along the transverse direction above the guide groove body, and an inner lip is arranged in the opposite direction of the vertical direction on the outer lip, the inner lip and the outer lip form a sealing barrier in the shape of a herringbone.

[0014] Further, the contact surfaces of the outer lip and the inner lip with the glass are flocked and treated with wear-resistant paint.

[0015] In a second aspect, the application provides an automobile, including: an automobile body;

[0016] The aforementioned A-pillar sealing and noise reduction assembly is installed on the automobile body.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] One, the application optimizes the matching relationship of the triangular block sealing strip, the side wall sealing strip and the outer water blocking sealing strip, sets a plurality of support ribs on the inner wall of the sealing corner part, supports the triangular block sealing strip assembled on the door, reduces the invasion of wind noise in the process of high-speed driving, significantly reduces the collapse trend of the sealing body when coping with the impact of high-pressure rain, and prevents water from entering the vehicle interior along the collapsed gap.

[0019] Two, the sealing straight section part of the triangular block sealing strip in the application is innovatively provided with an inner sealing lip on the basis of the original outer sealing lip, the inner sealing lip is arranged along the outer side of the door glass, not only resists the leakage of wind noise along the glass surface into the vehicle, but also avoids the risk of rainwater penetration due to the failure of the first sealing. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application, serve to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0021] Figure 1 is a structure schematic view of a vehicle outer side of an A-pillar sealing noise reduction assembly provided by the first embodiment of the application;

[0022] Figure 2 is a partial schematic view of a sealing corner part structure of a triangular block sealing strip provided by the first embodiment of the application;

[0023] Figure 3 is a partial schematic view of a back surface structure of a sealing corner part facing the vehicle outer side provided by the first embodiment of the application;

[0024] Figure 4 is an A-A cross-sectional schematic view provided by the first embodiment of the application;

[0025] Figure 5 is a B-B cross-sectional schematic view provided by the first embodiment of the application;

[0026] Figure 6 is a C-C cross-sectional schematic view provided by the first embodiment of the application;

[0027] In the drawings: 1, triangular block sealing strip; 2, side wall sealing strip; 3, outer water blocking strip; 4, sealing corner part; 5, sealing straight section part; 8, meat nail; 9, via hole; 11, first group of support ribs; 12, second group of support ribs; 13, third group of support ribs; 14, fourth group of support ribs; 15, fifth group of support ribs; 16, sixth group of support ribs; 17, guide groove body; 18, outer lip; 19, inner lip; 20, glass; 21, closed-cell sponge. DETAILED DESCRIPTION

[0028] The present application will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0029] The X, Y and Z axes in the present application represent the assembly direction of the sealing assembly on the vehicle, i.e. represent the up-down (vertical) left-right front-back positions, the X axis represents the left-right direction of the sealing assembly, the arrow direction of the X axis is the positive direction of the view, and vice versa, which refers to the tail rear side, and vice versa, which refers to the front side of the vehicle body; the Y axis represents the front-back direction of the sealing assembly, the arrow direction of the Y axis is the positive direction of the view, which refers to the outside of the vehicle, and vice versa, which refers to the inside of the vehicle body; the Z axis represents the up-down (vertical) direction of the sealing assembly, the arrow direction of the Z axis is the positive direction of the view, which refers to the top side of the vehicle, and vice versa, which refers to the bottom side of the vehicle body; at the same time, it should be noted that the above-mentioned X axis, Y axis and Z axis represent the meaning only for the convenience of describing the present 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0030] In the description of the present application, the terms "first", "second", and the like in the specification and claims and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein.

[0031] The following detailed description is exemplary and is intended to provide further detail to the present application. Unless otherwise indicated, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the present application are only for the purpose of describing the specific embodiments and are not intended to limit the exemplary embodiments according to the present application.

[0032] Embodiment one:

[0033] Please refer to Figure 1The embodiment of the present application shows an A-pillar sealing noise reduction assembly which is assembled at the position of the front door and the A-pillar, and specifically comprises a triangular block sealing strip 1, a side wall sealing strip 2 and an outer water barrier strip 3. The side wall sealing strip 2 is arranged on the outer side wall panel, the outer water barrier strip 3 is located on the door together with the triangular block sealing strip 1, and the side wall sealing strip 2 and the triangular block sealing strip 1 are extruded and matched to be sealed when the door is closed. The triangular block sealing strip 1 comprises a sealing corner connecting part 4 and a sealing straight section part 5, wherein the sealing corner connecting part 4 is provided with a plurality of support ribs, the sealing corner connecting part 4 extends downward in the vertical direction to form the sealing straight section part 5, the sealing straight section part 5 is composed of a guide groove body 17, an inner side lip 19 and an outer side lip 18, the triangular block sealing strip 1 is assembled on the guide rail in a flag shape, the outer water barrier strip 3 is assembled on the door panel stop, and the outer water barrier strip 3 is zero-paste matched with the sealing corner connecting part 4.

[0034] The upper edge of the sealing corner connecting part 4 is abutted and matched with the bubble tube of the side wall sealing strip 2, and is used for filling the local sealing gap of the A-pillar ROOF section. The downward area of the sealing corner connecting part 4 along the side wall sealing strip 2 towards the outside of the vehicle is provided with a sharp-angle triangular protruding area, and three through holes 9 are arranged in the area for the installation of the triangular block. The lower edge of the triangular protruding area is provided with a trapezoidal step surface for the matched installation of the outer water barrier strip 3. The sealing corner connecting part 4 is provided with a first group of support ribs 11 downward along the front end of the outer water barrier strip 3, the first group of support ribs 11 comprises two long and one short trapezoidal prisms, and a meat nail 8 is arranged on the left and right sides of the first group of support ribs 11 respectively for the fixation of the lower edge on the panel. The sealing corner connecting part 4 is provided with a second group of support ribs 12 upward rightwards along the surface of the sealing corner connecting part, and the second group of support ribs 12 comprises four trapezoidal prisms. The back surface of the sealing corner connecting part 14 facing the outside of the vehicle body is provided with a plurality of support ribs, and a third group of support ribs 13 are arranged around the through hole 9 of the tip of the sealing corner connecting part 4, and the third group of support ribs 13 comprises four profile bosses. The third group of support ribs 13 is respectively provided with a fourth group of support ribs 14, a fifth group of support ribs 15 and a sixth group of support ribs 16 from left to right, the fourth group of support ribs comprises two long prisms and two short prisms, and the fifth group of support ribs 15 involves three step-arranged bosses. Two prisms are arranged on the right side of the fifth group of support ribs 15. The plurality of support ribs are distributed in the inner wall of the sealing corner connecting part 4, and the cross section of the sealing straight section part 5 of the sealing corner connecting part 4 in contact with the glass 20 is composed of the guide groove body 17, the inner side lip 19 and the outer side lip 18 interfering with the glass 20.

[0035] It should be noted that the triangular block sealing strip 1 is usually assembled on the door guide rail to replace the guide groove of the framed door A-pillar, and to constrain and support the sliding of the glass 20. Since the triangular window area of the door glass is the most sensitive area of wind noise, especially the triangular window area of the front door glass, if the upper and lower cavities of the door (i.e. the cavity where the door glass is located and the cavity below the door glass) are connected at the triangular window area, the door cavity noise will be transmitted to each other, even strengthened and enlarged, resulting in large door leakage wind noise. In combination with the above Figure 5As shown, the triangular block sealing strip 1 extends to the Z direction and is pressed against the side sealing strip 2 to form a Z-direction seal. The side sealing strip 2 covers the upper edge (referred to as the ROOF section) of the triangular block sealing strip 1. The side sealing strip 2 replaces the guide groove of the ROOF section of the framed door and is combined with the triangular block sealing strip 1 to form a sealing structure. Figure 1 As shown, the glass 20 is inserted into the triangular block sealing strip 1 in the opposite direction of the X direction, slides upward along the Z direction of the sealing straight section 5, and passes through the upper edge of the pressing sealing corner section 4. Generally, the pressing sealing corner section 4 is made of hard dense rubber material as a support on the guide rail. In the example of the present application, a gradually decreasing thickness processing method is used, so that the thickness at the sharp corner position in contact with the glass is only 0.5 mm. The gradually decreasing thickness structure provides strong support to the assembly part on the guide rail, prevents collapse and causes local sealing failure. The pressing sealing corner section 4 at the position in contact with the side sealing strip 2 and the glass 20 is too thin, so that the upper edge of the pressing sealing corner section 4 is more easily deformed with the type when the glass 20 presses the bubble tube of the side sealing strip 2, reducing the gap space at this position and avoiding wind noise from entering at this position.

[0036] Please refer to Figure 6 In particular, the sealing corner section 4 matches the outer weather strip 3 in the opposite direction of the Z axis downward. The outer weather strip 3 is assembled on the edge of the door panel and has a length-appropriate closed-cell sponge 21 on the stepped surface to block the gap between the sealing corner section 4 and the outer weather strip 3, further reducing the leakage of wind noise. In addition, in the direction of the outside of the vehicle, the Z-direction gap between the outer weather strip 3 and the sealing corner section 4 is 0.6 mm, greatly improving the appearance of the product quality in the A-pillar area. In the structure arrangement, the sealing corner section 4 and the outer weather strip 3 are embeddedly assembled, the matching gap of the external parts is reduced, the sealing and sound insulation of the triangular block area of the door glass are improved, the airflow on the outside of the door is prevented from flowing at this position, thereby effectively reducing the leakage of wind noise; and the design of the trapezoidal stepped assembly surface can effectively control the Z-direction assembly height of the outer weather strip 3, and improve the appearance quality of the vehicle.

[0037] Please refer to Figure 2, the corner part of the triangular block sealing strip 1 is the sealing corner part 4, the through hole 9 is the mounting hole of the triangular block, the triangular block is arranged on the triangular area of the sealing corner part 4 as an outer decorative part, the inside of the triangular block is provided with foam as a sound insulation sealing device to fill the gap between the triangular block and the sealing corner part 4. The meat nails 8 are arranged at the lower end of the corner respectively, are assembled to the inner panel of the door, play a fixing role, and are sprayed with water-based polyurethane on the surface to play a lubricating role, facilitate the assembly of the meat nails 8, and the first group of supporting ribs 11 is arranged on the upper side of the meat nails 8, the first group of supporting ribs 11 is composed of three convex platform structures, which presents an arch structure with thin ends and thick middle in the vertical direction, the two ends are about 1mm thick, and the thickest part in the middle is about 2.5mm. The simple structure design can facilitate the processing and forming of the parts, and the arched structure can effectively reduce the contact area with the sheet metal in the X direction, so that the vehicle body can avoid sticking and abnormal noise caused by the shaking of the vehicle body posture during the driving process. At the same time, it provides a reinforcing structure for the lower edge of the sealing corner part 4, and plays a supporting role. According to the cooperation relationship shown in the figure, the first group of supporting ribs 11 can prevent the sealing corner part 4 from collapsing after interfering with the corner part of the side sealing strip 2 in the door closing state, so as to form an unrecoverable pit defect in the appearance. Figure 1

[0038] The second group of supporting ribs 12 is arranged on the right upper side of the first group of supporting ribs 11, and is composed of four trapezoidal prisms. It is arranged in the circular arc transition area of the sealing corner part 4, and is arranged as a toothed reinforcing structure to ensure that there is strong contact with the guide rail. It can help the sealing corner part 4 to support and limit in the Y direction, avoid internal shock at this position due to excessive door closing force during door closing, help to reduce the noise caused by the extrusion contact between the door closing guide rail and the rubber strip, and reduce the shortening of the service life caused by the shaking of the glass.

[0039] Figure 3 The back of the sealing corner part 4 is shown, which is distributed with four groups of supporting ribs, and the third group of supporting ribs 13 is arranged along the Z direction sharp corner area and is composed of four short convex platforms. It extends along the right upper edge of the sealing corner part 4 to the through hole 9 as a reinforcing structure at this position, provides sufficient support, limits the extrusion of the sealing corner part 4 and the side sealing strip 2 in the Z direction, and causes the sealing to be not tight. On the one hand, under the action of air pressure during high-speed driving, local collapse occurs at this position to form a hollow gap, thereby providing a channel for air flow to enter the vehicle at the A-pillar position. On the other hand, when facing the scouring of high-pressure rain, this position can greatly avoid the defect type opening caused by the action of water pressure, so that water flows into the vehicle, causing a series of after-sales problems.

[0040] ​The fourth set of support ribs 14 is arranged at the position where the third set of support ribs 13 extends in the reverse direction of the Z axis, and is arranged on the back of the through hole 9 of the sealing corner 4, serving as an assembly support structure between the guide rail, and is composed of four square-shaped bosses. The advantage of this structure is that it can provide support for the installation of the triangular block on the through hole 9, preventing the formation of a collapsed cavity in this area after assembly, and thus preventing the appearance of the sealing corner 4 from being poor.

[0041] The fifth set of support ribs 15 is arranged at the position where the fourth set of support ribs 14 extends in the reverse direction of the X axis, and is composed of three bosses arranged in a step-like manner along the ROOF segment, with each boss spaced 5 mm apart to enable the sealing strip to maintain good sealing effect and structural stability. The sixth set of support ribs 16 is arranged to the right of the fifth set of support ribs 15, and assists in limiting the assembly of the sealing corner 4 in the Z direction, and provides strong support to the corner area. The boss with a thickness of 6 mm can constrain the Y direction of the sealing corner 4, so that the sealing corner 4 can be completely clamped on the guide rail sheet metal.

[0042] Figure 4 The sealing straight section 5 is used to limit the Y direction of the glass 20, so that the glass 20 only slides in the Z direction. The sealing straight section 5 is composed of a guide groove body 17, an outer lip 18, and an inner lip 19. The guide groove body 17 is U-shaped and is adapted to the shape of the guide rail, and is assembled on the guide rail. The material is usually a hard dense glue that provides a stable fitting state. The outer lip 18 and the inner lip 19 are made of micro-foamed dense glue material to provide clamping force for the glass 20. The contact surfaces of the outer lip 18 and the inner lip 19 with the glass 20 are flocked and coated with a wear-resistant coating. Within the effective range, it can be foreseen that the defects such as glass jamming and abnormal noise can be effectively avoided, and the wear of the glue strip caused by frequent lifting of the glass can be maximized, thereby prolonging the service life of the glue strip. The outer lip 18 is arranged outwardly along the X direction above the guide groove body 17, and the inner lip 19 is arranged in the reverse direction of the Y direction of the outer lip. Taking the Y direction of the glass surface as an example, the left outer lip 18 contacts the outer side of the door and serves as the first sealing function, acting as the first barrier to prevent noise and water and dust. In order to strengthen the sealing of the A-pillar and prevent the "whistling" sound caused by the leakage of wind noise at this position during high-speed driving, the inner lip 19 downwardly added to this structure forms a second sealing barrier with the left outer lip 18, which is shaped like a "herringbone".

[0043] The first sealing of the A-pillar area is realized by the cooperation between the sealing corner 4 and the outer weather strip 3 and the side wall sealing strip 2, which is different from the traditional structure that focuses on the cooperation sealing of the inner side of the door in this area. The matching gap of the outer weather strip 3 is optimized, so that the leakage of wind noise in the A-pillar area can be greatly reduced by the first sealing. Meanwhile, a plurality of supporting ribs are arranged on the inner wall of the sealing corner 4, which can support the sealing corner 4 assembled on the door at high speed wind noise, and can significantly reduce the collapse trend of the sealing body when dealing with high pressure rain impact, so as to prevent water from entering the vehicle interior along the collapsed gap. The inner lip 19 is arranged on the basis of the original outer lip 18 of the sealing straight section 5, and the inner lip 19 is arranged along the outer side of the door glass 20. The inner lip 19 not only resists the leakage of wind noise along the glass 20 into the vehicle, but also avoids the risk of rainwater infiltration due to the failure of the first sealing lip.

[0044] Embodiment two:

[0045] The embodiment provides an automobile.

[0046] In one embodiment, it comprises an automobile body and the A-pillar sealing noise reduction assembly of embodiment one, and the A-pillar sealing noise reduction assembly is mounted on the automobile body.

[0047] In the above exemplary description of the present application combined with the drawings, it is obvious that the specific design of the example of the present application is not limited to various non-essential improvements, as long as the concept and technical principles of the example of the present application are adopted, or the structure and features of the example of the present application are directly applied to other occasions without improvement, which belongs to the scope of the patent application of the example of the present application.

[0048] From the technical knowledge, the present application can be realized by other embodiments without departing from the spirit or essential characteristics thereof. Therefore, the above disclosed embodiments are only illustrative in all aspects, and are not the only ones. All changes within the scope of the present application or within the scope equivalent to the present application are included in the present application.

[0049] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application and not to limit it, although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the present application can be modified or replaced, and any modification or equivalent replacement without departing from the spirit and scope of the present application should be included in the protection scope of the claims of the present application.

Claims

1. An A-pillar sealing and noise reduction component, characterized in that, include: A triangular sealing strip in the shape of a flag is fitted on the door guide rail between the front door and the A-pillar to constrain and support the sliding of the window glass. The triangular sealing strip includes a sealing corner portion. The lower edge of the sealing corner portion fits flush with the outer water baffle strip fitted on the door sheet metal stop. Its upper edge abuts against the bubble tube of the side sealing strip arranged on the outer side panel of the car when the door is closed. The inner wall of the sealing corner portion is provided with multiple sets of support ribs. The sealing corner has a triangular protruding area along the side sealing strip on the outer side of the vehicle. The lower edge of the triangular protruding area has a trapezoidal step surface that is installed in conjunction with the outer water baffle. The trapezoidal step surface is provided with a closed-cell sponge to block the contact gap between the sealing corner and the outer water baffle. Two metal studs for fixing to the automotive sheet metal are provided on one side of the lower edge of the sealing corner, and a first set of support ribs is provided between the two metal studs. The first set of support ribs includes multiple protrusions along the vertical direction, and each protrusion has an arched structure that is thin at both ends and thick in the middle. The lower edge of the sealing corner is provided with an arc transition area on the side away from the meat nail, and a second set of support ribs is provided in the arc transition area. The second set of support ribs includes multiple trapezoidal truncated pyramids along the horizontal direction to support and limit the sealing corner in the vertical plane. The surface of the sealing corner is provided with a through hole, and multiple sets of supporting ribs are staggered around the periphery of the through hole; The sealing corner is provided with a third set of support ribs towards the sharp corner area. The third set of support ribs includes multiple short bosses extending from the upper right edge of the sealing corner towards the through hole, which restricts the deformation of the sealing corner and the side sealing strip in the longitudinal direction. A fourth set of support ribs is provided at the position where the third set of support ribs extends in the opposite direction of the longitudinal direction. The fourth set of support ribs includes multiple square bosses to provide support for the installation of triangular blocks on the through hole.

2. The A-pillar sealing and noise reduction assembly according to claim 1, characterized in that, The fourth set of support ribs is provided with a fifth set of support ribs at the position where it extends laterally. The fifth set of support ribs includes three bosses arranged in a stepped manner along the ROOF section, with each boss spaced 5mm apart. The right side of the fifth set of support ribs is provided with a sixth set of support ribs for longitudinal assembly of the auxiliary limiting and sealing corner part.

3. The A-pillar sealing and noise reduction assembly according to claim 1, characterized in that, The sealing corner extends vertically downward to form a sealing straight section that limits the sliding of the glass. The sealing straight section includes a U-shaped guide groove body. The guide groove body is adapted to the shape of the door guide rail and is fitted onto the door guide rail accordingly. An outer lip is arranged horizontally outward above the guide groove body, and an inner lip is arranged vertically in the opposite direction on the outer lip. The inner lip and the outer lip form a herringbone sealing barrier.

4. The A-pillar sealing and noise reduction assembly according to claim 3, characterized in that, The outer and inner lips are flocked on the contact surfaces with the glass and then coated with a wear-resistant paint.

5. A type of automobile, characterized in that, include: The main body of the car; The A-pillar sealing and noise reduction assembly according to any one of claims 1-4, wherein the A-pillar sealing and noise reduction assembly is installed on the vehicle body.

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