Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an A-column sealing noise reduction assembly and an automobile thereof, and the problem that the sealing strip local deformation failure of an A-column region in high-speed running influences the sealing performance of the whole automobile is solved through structural optimization.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
In a first aspect, the present invention provides an a-pillar seal noise reduction assembly comprising: the triangular block sealing strip is in a flag-leaning shape, the triangular block sealing strip is assembled at a door guide rail between a front door and an A column and is used for restraining and supporting sliding of window glass, the triangular block sealing strip comprises a sealing corner, the lower edge of the sealing corner is in zero-fitting fit with an outer water blocking strip assembled on a sheet metal seam allowance of the door, the upper edge of the sealing corner is in abutting fit with a foam tube of a side wall sealing strip arranged on an outer plate of an automobile side wall when the door is closed, and a plurality of groups of supporting ribs are distributed on the inner wall of the sealing corner.
Further, the sealing joint corner is provided with a triangular protruding area towards the vehicle outer side along the downward area of the side wall sealing strip, the lower edge of the triangular protruding area is provided with a trapezoid step surface which is matched with the outer water stop strip, and the trapezoid step surface is provided with a closed hole sponge for blocking a contact gap between the sealing joint corner and the outer water stop strip.
Further, two meat nails fixed with the automobile sheet metal are arranged on one side of the lower edge of the sealing corner, a first group of supporting ribs are arranged between the two meat nails, each first group of supporting ribs comprises a plurality of bosses along the vertical direction, and each boss presents an arch structure with two thin ends and a thick middle.
Further, one side of the lower edge of the sealing joint corner part far away from the meat nail is provided with an arc transition area, a second group of supporting ribs are distributed at the arc transition area, each second group of supporting ribs comprises a plurality of trapezoid prismatic tables along the horizontal direction, and the sealing joint corner part is supported and limited on the vertical surface.
Further, through holes are formed in the surfaces of the sealing joint corner portions, and a plurality of groups of supporting ribs are distributed on the periphery of the through holes in a staggered mode.
Further, the sealing joint corner is provided with a third group of supporting ribs towards the sharp corner area, the third group of supporting ribs comprises a plurality of short bosses extending towards the through holes along the upper right edge of the sealing joint corner, deformation of the sealing joint corner and the side wall sealing strips in the longitudinal direction is limited, the third group of supporting ribs are provided with a fourth group of supporting ribs at the position extending along the longitudinal opposite direction, and the fourth group of supporting ribs comprise a plurality of square bosses for supporting the triangular blocks installed on the through holes.
Further, a fifth group of supporting ribs are arranged at the position, extending transversely, of the fourth group of supporting ribs, each fifth group of supporting ribs comprises three bosses which are arranged in a stepped mode along the ROOF section, each boss is arranged at an interval of 5mm, and a sixth group of supporting ribs which assist in limiting sealing connection of corners in longitudinal assembly are arranged on the right side of each fifth group of supporting ribs.
Further, the sealing joint angle part downwards extends in the vertical direction to generate a sealing straight section part for limiting glass sliding, the sealing straight section part comprises a U-shaped guide groove body, the guide groove body is matched with the shape of a vehicle door guide rail and is assembled on the vehicle door guide rail along with the shape of the vehicle door guide rail, an outer side lip is outwards arranged above the guide groove body along the transverse direction, an inner side lip is arranged on the outer side lip along the vertical direction in a reverse mode, and the inner side lip and the outer side lip form a herringbone sealing barrier.
Further, contact surfaces of the outer lip and the inner lip with glass are flocked and are subjected to spraying and wear-resistant coating treatment.
In a second aspect, the present invention provides an automobile comprising: an automobile body;
The A column sealing noise reduction assembly is arranged on the automobile body.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, by optimizing the matching relation between the triangular block sealing strip and the side wall sealing strip and the outer water blocking sealing strip, a plurality of groups of supporting ribs are arranged on the inner wall of the sealing joint corner part, and the triangular block sealing strip assembled on the vehicle door plays a supporting role, so that the invasion of wind noise in the high-speed running process is reduced, the dumping trend of the sealing body is obviously reduced when the high-pressure rain impact is coped, and the running water is prevented from entering the vehicle body along the collapse gap;
2. The cross section of the sealing straight section of the triangular block sealing strip is creatively additionally provided with the inner sealing lip on the basis of the original outer sealing lip, and the inner sealing lip is arranged along the outer side of the door glass, so that wind noise is prevented from leaking into the automobile along the glass surface, the sealing straight section is used as a waterproof second sealing lip, and the risk brought by rainwater infiltration due to failure of the first sealing lip is avoided.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The X, Y, Z axis in the invention represents the assembly direction of the sealing component on the vehicle, namely, represents the up-down (vertical) left-right front-back position, the X axis represents the left-right direction of the sealing component, the arrow direction of the X axis is the forward direction of the view, the reverse direction is the reverse direction, the vehicle body is taken as an example, and the direction is toward the rear side, the reverse direction is the reverse direction, and the direction is toward 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 forward direction of the view, taking the car body as an example, and the direction of the Y-axis is the reverse direction, and the direction of the Y-axis is the inner side of the car 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, taking the car body as an example, and the direction of the Z axis is towards the upper side of the car, and the opposite direction is the opposite direction, and the arrow direction of the Z axis is towards the lower side of the car body; also, it should be noted that the foregoing X-axis, Y-axis, and Z-axis designations are for convenience of description and simplicity of description only, and are not intended to indicate or imply that the devices or elements referred to must have, be constructed and operated in a particular orientation and thus should not be construed as limiting the invention.
In the description of the present invention, the terms "first," "second," and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
The following detailed description is exemplary and is intended to provide further details of the invention. Unless defined otherwise, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
Embodiment one:
referring to fig. 1, an embodiment of the invention shows an a-pillar sealing noise reduction assembly, which is assembled at a front door and an a-pillar position, and specifically comprises a triangular block sealing strip 1, a side wall sealing strip 2 and an outer water blocking strip 3, wherein the side wall sealing strip 2 is arranged on a side wall outer plate, the outer water blocking strip 3 and the triangular block sealing strip 1 are positioned on the door, and the side wall sealing strip 2 and the triangular block sealing strip 1 are in extrusion fit sealing when the door is closed. The triangular block sealing strip 1 comprises a sealing corner 4 and a sealing straight section 5, wherein the sealing corner 4 is provided with a plurality of supporting ribs, the sealing corner 4 extends downwards in the vertical direction to form the sealing straight section 5, the sealing straight section 5 consists 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 a guide rail to form a leaning flag shape, the outer water baffle strip 3 is assembled on a sheet metal seam allowance of a vehicle door, and the outer water baffle strip 3 is in zero-fitting fit with the sealing corner 4.
The upper edge of the sealing corner 4 is in abutting fit with the bubble tube of the side wall sealing strip 2 and is used for filling the partial sealing gap of the A column ROOF section. The sealing corner 4 is provided with an acute triangular protruding area towards the vehicle outer side along the side wall sealing strip 2 and three through holes 9 are arranged in the area for the installation of triangular blocks. The lower edge of the triangular protruding area is provided with a trapezoid step surface for being matched with the outer water baffle strip 3. The sealing corner 4 is provided with a first group of supporting ribs 11 downwards along the front end of the outer water bar 3, the first group of supporting ribs 11 comprise two long and one short trapezoid prism tables, and meat nails 8 are respectively arranged on the left side and the right side of the first supporting rib 11 and used for fixing the lower edge of the joint corner on a metal plate. The first group of supporting ribs 11 are provided with a second group of supporting ribs 12 to the right and above along the surface of the sealing joint corner, and the second group of supporting ribs 12 comprise four trapezoid prism tables. The back of the sealing corner 14 facing the outer side of the vehicle body is provided with a plurality of groups of supporting ribs, a third group of supporting ribs 13 are distributed along the periphery of the through hole 9 at the tip end of the sealing corner 4, and the third group of supporting ribs 13 comprise four conformal bosses. The third group support muscle 13 downside is equipped with fourth group support muscle 14, fifth group support muscle 15 and sixth group support muscle 16 respectively in proper order from left to right, and fourth support muscle contains twice long terrace with edges and twice short terrace with edges, and fifth group support muscle 15 relates to the boss of three ladder arrangement. Two prismatic tables are arranged on the right side of the fifth group of supporting ribs 15. The multiple groups of supporting ribs are distributed on the inner wall of the sealing joint corner part 4 in a staggered manner, and the section of the sealing straight section 5 of the sealing joint corner part 4, which is in contact with the glass 20, consists of a guide groove body 17, an inner side lip 19 and an outer side lip 18 which interfere with the glass 20.
It should be noted that, the triangular block sealing strip 1 is usually assembled on a door rail to replace the guiding groove of the framed door a pillar to perform constraint support for sliding of the glass 20, and since the triangular window area of the door glass is the area where wind noise is most sensitive, especially the triangular window area of the front door glass, if the upper cavity and the lower cavity of the door (i.e. the cavity where the door glass is located and the cavity below the door glass) are penetrated at the triangular window area, the noise of the cavity of the door is mutually conducted, even amplified, and the wind leakage noise of the door is larger. In combination with fig. 5, the triangular block sealing strip 1 extends towards the Z direction and is matched with the side wall sealing strip 2 in an extrusion mode to be used as a Z-direction seal, the side wall sealing strip 2 covers the upper edge (can be called a ROOF section) of the triangular block sealing strip 1, the side wall sealing strip 2 replaces the guiding groove function of the ROOF section of a framed door, in combination with fig. 1, glass 20 is inserted into the triangular block sealing strip 1 towards the opposite direction of X, the upper edge of a sealing corner 4 is extruded along the Z direction (namely upwards) of a sealing straight section 5 in a sliding mode, the sealing corner 4 is generally made of harder compact rubber materials, the thickness of the sealing corner 4 is reduced in a gradual thickness mode, so that the thickness of the sealing corner at the position of a sharp corner contacted with the glass is only 0.5mm, the gradually thickness structure enables the assembling part on the guide rail to provide strong support, local sealing failure caused by collapse is prevented, and the sealing corner 4 at the position of the contact port of the side wall sealing strip 2 and the glass 20 is thicker than the sealing corner 4 because the sealing corner 4 is easy to form a noise-reducing gap along with the upper edge of the sealing corner 4 when the sealing corner 2 is extruded, and the wind channeling is avoided.
Referring to fig. 6, the specific sealing corner 4 is matched with the outer water stop strip 3 downwards along the opposite direction of the Z axis, the outer water stop strip 3 is assembled on the edge of the sheet metal seam allowance of the vehicle door, and a closed hole sponge 21 with moderate length is arranged on the step surface to block the gap between the sealing corner 4 and the outer water stop strip 3, so that the leakage of wind noise is further reduced. In addition, along the external direction of car, the Z direction clearance between outer water retaining strip 3 and the sealing joint bight 4 accomplishes 0.6mm, very big improvement the product quality outward appearance in A post region. In the arrangement of the structure, the sealing corner 4 and the outer water bar 3 are assembled in an embedded mode, the sealing performance and the sound insulation performance of a triangular block area at the glass of the vehicle door are improved by reducing the matching gap of external parts, and the ventilation of air flow at the outer side of the vehicle door at the position is prevented, so that the leakage of wind noise is effectively reduced; and the design of trapezoidal step assembly face can effectively control the Z to assembly height of outer breakwater 3, carries out the outward appearance quality to the whole car and promotes.
Referring to fig. 2 in combination, the joint corner portion of the triangular block sealing strip 1 is a sealing joint corner portion 4, wherein the via hole 9 is used as a mounting hole of the triangular block, the triangular block is used as an external decoration and arranged on a triangular area of the sealing joint corner portion 4, and foam is arranged on the inner side of the triangular block as a sound insulation sealing device to fill a gap between the triangular block and the sealing joint corner portion 4. Meat nail 8 is arranged in connecing the angle lower extreme respectively, assemble in the door inner panel, play the fixed action, and play the lubrication action at surface spraying waterborne polyurethane, be convenient for the assembly of meat nail 8, be equipped with first group brace rod 11 in the upside of meat nail 8, first group brace rod 11 comprises three boss structures, it presents the arch structure of two thickness in the middle of two along vertical direction, both ends are thick about 1mm, the thickest place in the middle is about 2.5mm, simple and easy structural design can be convenient for the machine-shaping of part, and the arch structure of well bulge can effectively reduce the area of contact with the panel beating in X direction, make the automobile body be in the twist road driving process, avoid leading to the fact the bonding abnormal sound because of the rocking of automobile body gesture, bordure under sealing corner 4 provides reinforced structure stability and play support action simultaneously, according to the cooperation relation that fig. 1 shows, first group brace rod 11 can furthest prevent under the door closing state, after sealing corner 4 and the interface corner portion of side wall sealing strip 2, cause the appearance to form unrecoverable defect.
The upper right side of first group brace rod 11 is equipped with second group brace rod 12, second group brace rod 12 comprises four trapezoidal terrace with edges, it sets up the circular arc transition district at sealed joint bight 4, make the tooth additional strengthening steady arrangement of grabbing, guarantee that this department exists strong contact with the guide rail, can help sealed bight 4 to do the support limiting displacement in Y to the face, avoid closing the door in-process, because of the door power is too big, and lead to taking place inside vibration in this position, help weakening the door and close the noise that guide rail and adhesive tape extrusion contact vibrations brought, can alleviate glass again and lead to life cycle's reduction because of rocking.
Fig. 3 shows that the back of the sealing corner 4 is provided with four groups of supporting ribs in a staggered manner, a third group of supporting ribs 13 is arranged along the Z-direction sharp corner region and is formed by four short bosses, the four short bosses extend towards the through holes 9 along the upper right edge of the sealing corner 4, and as a reinforcing structure of the position, sufficient support is provided, the sealing corner 4 and the side wall sealing strip 2 are limited to be extruded to deform in the Z direction, so that sealing is not tight, on one hand, under the action of air pressure in high-speed running, the position is locally collapsed to form a hollow gap, thereby providing a channel for air flow to enter a vehicle at the A column position, and on the other hand, when the air flow is flushed by high-pressure shower, the position can greatly avoid a defective opening caused by water flow entering the vehicle due to the action of water pressure, and a series of after-sales problems are brought.
The third group of support ribs 13 are provided with the fourth group of support ribs 14 at the positions extending along the Z-axis reverse direction, the fourth group of support ribs 14 are arranged on the back surface of the through hole 9 on the sealing joint corner 4 and serve as an assembly support structure between the guide rails, the assembly support structure is composed of four square bosses, the structure has the advantages of providing support for the installation of the triangular blocks on the through hole 9 and preventing poor appearance of the sealing joint corner 4 due to the fact that the subsidence holes of the area are formed after assembly.
The position that is located fourth group's supporting rib 14 along X axis opposite direction extension is equipped with fifth group's supporting rib 15, fifth group's supporting rib 15 is by three boss that arrange along ROOF section ladder, every boss interval 5mm sets up, make the sealing strip can keep good sealed effect and structural stability, be equipped with sixth group's supporting rib 16 on the right of fifth group's supporting rib 15, the assembly of limit seal bight 4 in the Z orientation is assisted to sixth group's supporting rib, and the bight region is strong support, thickness 6 mm's boss can be to the Y orientation constraint of seal bight 4, make seal bight 4 can the centre gripping on the guide rail panel beating completely.
Fig. 4 shows a cross section of the seal straight portion 5, which is used to limit the glass 20 in the Y direction and slide the glass 20 only in the Z direction, and the cross section of the seal straight portion 5 is composed of a channel body 17, an outer lip 18 and an inner lip 19. The guide slot body 17 is U-shaped, is matched with the shape of the guide rail, is assembled on the guide rail along with the shape, is made of harder compact glue to provide a stable matching state, the outer side lip 18 and the inner side lip 19 are made of micro-foaming compact glue materials to provide clamping force on the glass 20, flocking is carried out on the contact surfaces of the outer side lip 18 and the inner side lip 19 and the glass 20, spraying and wear-resistant coating treatment is carried out, the defects of glass clamping stagnation, abnormal sound and the like can be effectively avoided within an effective range, adhesive tape abrasion caused by frequent glass lifting is improved to the greatest extent, and the practical service life of the adhesive tape is prolonged. An outer lip 18 is arranged above the guide groove body 17 in an outward expanding manner along the X direction, an inner lip 19 is arranged on the outer lip along the Y reverse direction, the left outer lip 18 contacts with the outer side of a car door in the Y direction of a glass surface to play a role of first sealing, and the left outer lip 18 serves as a first barrier for isolating noise and preventing water and dust in a traditional structure.
The sealing corner 4 is matched with the outer water baffle 3 and the side wall sealing strip 2 to be used as a head sealing of the A column area, compared with the traditional structure that the inner side of the vehicle door is matched and sealed in the area, the matching surface gap of the outer water baffle 3 is optimized, so that the leakage of wind noise in the A column area can be greatly reduced by using the head sealing at the source. Meanwhile, a plurality of groups of supporting ribs are arranged on the inner wall of the sealing joint corner 4, so that the sealing joint corner 4 assembled on the vehicle door can be supported strongly under the high-speed wind noise state, and the dumping trend of the sealing body is obviously reduced and running water is prevented from entering the inside of the vehicle body along the collapsing gap when the impact of high-pressure rain is handled. The section of the sealing straight section part 5 is provided with an inner side lip 19 on the basis of the original outer side lip 18, and the inner side lip 19 is arranged along the outer side of the door glass 20, so that wind noise is prevented from leaking into the automobile along the glass 20 surface, and the sealing straight section part is used as a waterproof second sealing lip, and the risk caused by rainwater infiltration due to failure of the first sealing lip is avoided.
Embodiment two:
the present embodiment provides an automobile.
In one embodiment, the vehicle comprises a vehicle body and an A-pillar seal noise reduction assembly of example one mounted on the vehicle body.
In the above description of the exemplary embodiments of the present invention with reference to the accompanying drawings, it is apparent that the specific designs of the examples of the present invention are not limited to various insubstantial modifications, as long as the concepts and technical principles of the examples of the present invention are adopted or the structures and features of the examples of the present invention are directly applied to other occasions without improvement, which are all within the scope of the claims of the examples of the present invention.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.