Automobile front cover rear sealing structure and automobile
Technical Field
The application relates to the technical field of automobiles, in particular to an automobile front cover rear sealing structure and an automobile.
Background
The automobile front cover rear sealing structure comprises a front cover metal plate and an engine room decorative plate arranged below the front cover metal plate, sealing strips are often arranged between the front cover metal plate and the engine room decorative plate for ensuring tightness and avoiding water flow from entering an engine room, and extend along the width direction of an automobile, so that the overall assembly posture of the sealing strips is C-shaped to adapt to the structure of a front cover rear side C line.
The sealing strip structure commonly used in the prior art is applicable to common conventional vehicle types, but is not applicable to non-conventional vehicle types with smaller front cover rear side C line corner R angle, because: the conventional sealing strip is made into an integral annular structure by adopting a single foaming adhesive material except for the parts assembled with the cabin decorative plate, so that the annular structure is in interference contact with the front cover sheet metal, and the gap between the front cover sheet metal and the cabin decorative plate is sealed. The integral annular structure made of the foaming adhesive material is easy to collapse at the corner R of the C line, so that the sealing performance is reduced.
Disclosure of Invention
The application aims to provide an automobile front cover rear sealing structure and an automobile, which are used for solving the technical problems that a conventional sealing strip structure in the related art cannot be suitable for the automobile front cover rear sealing structure with smaller C line corner at the rear side of the front cover, and is easy to collapse at the C line corner to reduce sealing performance.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
the utility model provides a seal structure behind car front shroud, its includes front shroud inner panel, arranges in front shroud inner panel below and with the cabin decorative board that has the clearance between the front shroud inner panel, and be located the sealing strip in the clearance, wherein, the sealing strip includes:
the foaming sponge colloid is in interference contact with the inner plate of the front cover;
the compact colloid is assembled on the cabin decorative plate, and both ends of the compact colloid extend upwards and are correspondingly connected with both ends of the foaming sponge colloid so as to form a closed-loop structure; among the two connection positions of the compact colloid and the foaming sponge colloid, the connection position near the front side of the automobile is lower than the connection position near the rear side of the automobile.
According to the technical means, the foam sponge colloid and the compact colloid which are distributed up and down are surrounded to form the sealing strip with a closed-loop structure, and the sealing strip is arranged in a gap between the inner plate of the front cover and the cabin decorative plate, so that the gap is sealed; meanwhile, the sealing strip is not made of foam rubber, but a foaming sponge colloid is adopted at the part which is in interference contact with the inner plate of the front cover, a compact colloid is adopted at the part which is connected and assembled with the cabin decorative plate, and meanwhile, the shape-following corner of the C line of the rear side of the front cover is a backward bending corner, so that the compact colloid is designed into an asymmetric structure with low front and high rear, the part of the sealing strip, which is close to the rear side of the automobile, has better strength and supporting performance, the probability that the whole sealing strip collapses at the corner of the C line in shape-following joint is effectively reduced, and the whole sealing performance of the sealing structure of the front cover of the automobile is improved.
Further, the automobile front cover rear sealing structure further includes:
the two convex ribs are positioned between the compact colloid and the cabin decorative plate and distributed along the front-back direction of the automobile; one end of the convex rib is connected with the compact colloid, and the other end of the convex rib abuts against the cabin decorative plate.
According to the technical means, the convex ribs can be in interference fit and seal with the cabin decorative plate, so that the sealing performance reduction caused by the rising of the edge of the sealing strip after the sealing strip is assembled is avoided.
Further, the foaming sponge colloid and the compact colloid are integrally extruded and molded.
According to the technical means, the whole processing technology of the sealing strip is simple, and the whole processing procedure of the sealing strip can be reduced, so that the processing difficulty is reduced, and the production efficiency is improved.
Further, the foam sponge colloid and the inner included angle of the inner plate of the front cover are arranged at intervals.
According to the technical means, the phenomenon that the sealing strip enters the inner included angle of the inner plate of the front cover after interference deformation to cause torsion friction abnormal sound is avoided.
Further, a bending part protruding downwards is arranged on the front cover inner plate, and the inner included angle of the bending part relative to the front cover inner plate is close to the rear side of the automobile; the bending part is in interference contact with the foaming sponge colloid.
According to the technical means, the bending part can provide an installation space for the sealing strip and can also increase the interference quantity of the sealing strip and the inner plate of the front cover, so that the sealing surface is widened, the sealing performance is improved, and the waterproof requirement of an automobile is met.
Further, a front cover luminous screen is arranged on the rear sides of the front cover inner plate and the cabin decorative plate, and corresponds to the gap; a gap is arranged between the sealing strip and the luminous screen of the front cover.
According to the technical means, the edge of the front cover luminous screen can keep a certain distance with the sealing strip, interference between the assembled front cover luminous screen and the sealing strip is avoided, and the problem of poor appearance effect caused by local explosion after the sealing strip is assembled in a real vehicle is avoided.
Further, a water flowing groove is arranged below the luminous screen of the front cover, and an opening of the water flowing groove is upwards arranged; one end of the cabin decorating plate, which is close to the rear side of the automobile, is bent downwards and corresponds to the opening of the water flowing groove; the bending position of the cabin decorative board is close to the rear side of the automobile relative to the sealing strip.
According to the technical means, the running water entering the lower part of the inner plate of the front cover can be guided to the opening of the running water tank by the part of the cabin decorative plate, which is close to the rear side of the automobile, before reaching the position of the sealing strip, so that the running water is effectively prevented from entering the cabin.
Further, a front cover outer plate is arranged above the front cover inner plate, and one end of the front cover outer plate, which is close to the rear side of the automobile, is bent downwards and forwards so as to clamp the front cover inner plate; a part of the front cover luminous screen extends to the lower part of the bending part of the front cover outer plate.
According to the technical means, the gap between the inner plate of the front cover and the cabin decorative plate can be partially shielded by the luminous screen of the front cover, so that the influence on the overall appearance effect caused by the exposure of the sealing strip in the gap is avoided; meanwhile, the end of the front cover outer plate, which is close to the rear side of the automobile, adopts a bent type edge wrapping structure, so that the front cover inner plate can be clamped and positioned, the end of the front cover inner plate, which is close to the rear side of the automobile, can be shielded, and the overall appearance effect of the rear side of the front cover is improved.
Further, the automobile front cover rear sealing structure further includes:
the edge folding adhesive tape is arranged at the end part of the front cover outer plate; the edge folding adhesive tape is positioned below the front cover inner plate and connected with the front cover inner plate;
the bottom surface of the bending part of the front cover outer plate is lower than the edge folding adhesive tape.
According to the technical means, a flanging process adopted at one end of the front cover outer plate, which is close to the rear side of the automobile, provides a glue extruding space for a flanging adhesive tape; simultaneously, the bottom surface of the department of bending of front shroud planking can shelter from the hem adhesive tape, effectively avoids the interior sight of car to see the hem adhesive tape to avoid the hem adhesive tape to influence visual effect.
An automobile comprising the front-back cover seal structure of any one of the above.
The application has the beneficial effects that:
(1) The compact colloid is designed into an asymmetric structure with low front and high rear, so that the part of the sealing strip, which is close to the rear side of the automobile, has better strength and supporting performance, the probability of collapse of the whole sealing strip at the corner of the C-line along with the shape of the clamping joint is effectively reduced, and the overall sealing performance of the rear sealing structure of the front cover of the automobile is improved.
(2) The convex ribs are arranged below the compact colloid, and can be used for interference assembly sealing with the cabin decorative plate, so that the sealing performance reduction caused by the rising of the edge of the sealing strip after assembly is avoided; and set up the kink that protrudes downwards on the front shroud inner panel, can provide installation space for the sealing strip, can also increase the interference volume of sealing strip and front shroud inner panel to widen sealed face, promote sealing performance, satisfy the waterproof demand of car.
Drawings
FIG. 1 is a schematic view of a part of a rear seal structure of an automobile front cover below an inner plate of the front cover according to an embodiment of the application;
FIG. 2 is an overall top view of an automobile front cover rear seal structure provided in accordance with an embodiment of the present application;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a partially enlarged schematic view at B in fig. 3.
Wherein, 1-a front cover inner plate; 11-an inner included angle; 12-bending part; 2-cabin decorative panels; 21-a mounting surface; 22-a first side elevation; 23-a second side elevation; 24-a second buckle; 3, sealing strips; 31-foaming sponge colloid; 32-compacting the colloid; 4-convex ribs; 5-a front cover luminous screen; 6-a water flowing groove; 61-water retaining teeth; 7-clamping buckles; 8-cabin cover plate; 81-grooves; 9-front cover outer plate; 91-bending part; 10-edge folding adhesive tape.
Detailed Description
Further advantages and effects of the present application will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present application by way of illustration, and only the components related to the present application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
The embodiment provides a sealing structure behind automobile front cover, as shown in fig. 1 and 4, the sealing structure behind the automobile front cover includes: a front cover inner plate 1, a cabin decorative plate 2 and a sealing strip 3; the front cover inner plate 1 and the cabin decorative plate 2 are arranged up and down, and a gap is reserved between the front cover inner plate 1 and the cabin decorative plate 2; the sealing strip 3 is arranged in the gap, and the upper portion of the sealing strip 3 is in interference contact with the front cover inner plate 1, and the lower portion of the sealing strip 3 is assembled with the cabin decorative plate 2 in a clamping manner, so that the gap is sealed.
In this embodiment, the sealing strip 3 is not made of foam rubber, but a portion interfering and contacting with the front cover inner plate 1 is made of foam sponge rubber 31, and a portion connecting and assembling with the cabin decorative plate 2 is made of compact rubber 32. Specifically, the sealing strip 3 includes a foaming sponge gel 31 and a dense gel 32 which are surrounded to form a closed loop structure; wherein, foaming sponge colloid 31 and closely knit colloid 32 distributes from top to bottom, foaming sponge colloid 31 and the interference contact of front shroud inner panel 1, closely knit colloid 32 and cabin decorative board 2 joint assembly. Both ends of the compact colloid 32 extend upwards, and both ends of the compact colloid 32 are respectively in one-to-one correspondence with both ends of the foaming sponge colloid 31 and are connected with each other, so that a closed loop structure is formed.
Since the conformal corner R (as shown in fig. 1) of the front cover rear side C line is a corner bent backward, in this embodiment: along the front and back direction of car, the two connecting positions of closely knit colloid 32 and foaming sponge colloid 31 are in tandem distribution to in two connecting positions, the connecting position that is close to the front side of car is less than the connecting position that is close to the rear side of car, makes closely knit colloid 32 design to back high front low asymmetric structure, and closely knit colloid 32's asymmetric structure more can adapt to the corner that front shroud rear side C line was bent backward, and the position that sealing strip 3 is close to the rear side of car has better intensity and supporting property, effectively reduces the whole probability that collapses appears at the corner of shape joint on the C line along with the shape of sealing strip 3, reaches the purpose of lifting the whole sealing performance of front shroud rear seal structure.
In this embodiment, as shown in fig. 4, the rear sealing structure of the automobile front cover further includes two ribs 4, and the two ribs 4 are located between the compact colloid 32 and the cabin decorative board 2 and are distributed in the front-rear direction of the automobile. One end of the convex rib 4 is connected with the compact colloid 32, and the other end abuts against the cabin decorative board 2.
By arranging the convex ribs 4 on the sealing strip 3, interference assembly between the sealing strip 3 and the cabin decorative plate 2 can be increased, and the sealing performance reduction caused by edge warping after the sealing strip 3 is assembled is avoided.
In this embodiment, foam sponge colloid 31 and closely knit colloid 32 integrated extrusion for sealing strip 3 whole processing technology is simple, can reduce the holistic processing procedure of sealing strip 3, thereby reduces the processing degree of difficulty, promotes production efficiency.
In this embodiment, the foam sponge gel 31 is disposed at an interval from the inner angle 11 of the front cover inner panel 1, and the foam sponge gel 31 is located near the rear side of the automobile with respect to the inner angle 11 of the front cover inner panel 1. The foam sponge gel 31 and the inner included angle 11 of the front cover inner plate 1 are arranged at intervals, so that the sealing strip 3 can be effectively prevented from entering the inner included angle 11 of the front cover inner plate 1 after interference deformation, and torsion friction abnormal sound generated at the inner included angle 11 of the front cover inner plate 1 by the sealing strip 3 is avoided.
In one implementation manner of this embodiment, as shown in fig. 3 and 4, a distance d1 between a boundary of the weather strip 3 near the front side of the vehicle and the inner included angle 11 of the front cover inner panel 1 is not less than 3mm, so that a sufficient deformation space is provided for the weather strip 3.
In this embodiment, as shown in fig. 4, a bending portion 12 is disposed on the front cover inner panel 1, the bending portion 12 protrudes downward, and the bending portion 12 is close to the rear side of the automobile with respect to the inner included angle 11 of the front cover inner panel 1. The bending part 12 is in interference contact with the foaming sponge gel 31, so that the bending part 12 provides an installation space for the sealing strip 3, and meanwhile, the interference quantity between the sealing strip 3 and the front cover inner plate 1 can be increased through the bending part 12, so that the sealing surface is widened, the sealing performance is improved, and the waterproof requirement of an automobile is met.
In the present embodiment, the front cover inner plate 1 and the cabin decorative plate 2 are provided with a front cover luminescent screen 5 on the rear side (as shown in fig. 1 to 4), the front cover luminescent screen 5 corresponding to the gap; the sealing strip 3 has the space with preceding protecgulum luminescent screen 5 for preceding protecgulum luminescent screen 5 border can keep certain distance with sealing strip 3, can not produce the interference between assurance assembly back protecgulum luminescent screen 5 and the sealing strip 3, avoids the sealing strip 3 to appear local explosion outward and lead to the poor problem production of outward appearance effect after the real car assembly.
In one implementation manner of this embodiment, as shown in fig. 3 and 4, a distance d2 between a boundary of the cabin decorative board 2 near the rear side of the automobile and a boundary of the front cover luminescent screen 5 near the front side of the automobile is not less than 5mm, so that interference abnormal sound is effectively avoided in the running process of the automobile.
In the present embodiment, as shown in fig. 1, 2 and 3, a gutter 6 is arranged below the front cover luminescent screen 5, and the opening of the gutter 6 is arranged upward; as shown in fig. 3 and 4, the end of the cabin trim panel 2 near the rear side of the automobile is bent downward to form a first side elevation 22, the first side elevation 22 corresponding to the opening of the gutter 6.
Specifically, the gutter 6 has water blocking teeth 61, and the water blocking teeth 61 are in close proximity to the opening of the gutter 6; the bending part of the cabin decorative panel 2 (i.e. the joint of the first side elevation 22 and the mounting surface 21) is close to the rear side of the automobile relative to the sealing strip 3; and the cabin decorative plate 2 is close to one end of the rear side of the automobile, namely, the tail end of the first side elevation 22 extends to the rear side of the water retaining tooth 61 and is opposite to the opening of the water flowing groove 6, so that the flowing water entering the lower part of the front cover inner plate 1 can be guided to the opening of the water flowing groove 6 by the position of the cabin decorative plate 2 close to the rear side of the automobile before reaching the position of the sealing strip 3, and the flowing water is effectively prevented from entering the cabin.
Meanwhile, the cabin decorative plate 2 can also play a certain shielding role on the water flowing groove 6, and the appearance of the front cover after being opened is clean.
In this embodiment, as shown in fig. 3, the cabin decorative board 2 has a mounting surface 21, and the mounting surface 21 is a compact colloid 32; both ribs 4 are abutted against the mounting surface 21. The automobile front cover rear sealing structure also comprises a buckle 7, and a clamping groove is formed in the mounting surface 21; the buckle 7 is arranged on the compact colloid 32 and is matched with the clamping groove in a clamping way, so that the assembly between the sealing strip 3 and the cabin decorative board 2 is realized.
As shown in fig. 3 and 4, the end of the cabin trim panel 2 near the front side of the car is bent downward to form a second side elevation 23. In this embodiment, the front-cover rear seal structure further includes a cabin cover 8, and the cabin cover 8 is located below the front-cover inner panel 1 and the cabin trim 2 and is close to the front side of the automobile with respect to the gutter 6. The cabin decorative board 2 is provided with a second buckle 24, and the second buckle 24 is matched with the cabin cover board 8 in a clamping way so as to realize assembly positioning between the cabin decorative board 2 and the cabin cover board 8. Simultaneously, be provided with recessed groove 81 on the cabin cover plate 8, this groove 81 is located the front side of second buckle 24, and the terminal downwardly extending of the second side elevation 23 of cabin decorative board 2 is in groove 81 to increase the interference between cabin decorative board 2 and the cabin cover plate 8 through the cooperation of groove 81 and second side elevation 23, promote the stability of assembly between cabin decorative board 2 and the cabin cover plate 8.
In this embodiment, as shown in fig. 2, 3 and 4, a front cover outer plate 9 is disposed above the front cover inner plate 1, and the front cover outer plate 9 and the front cover inner plate 1 are mounted in a matched manner and together form a front cover sheet metal. Specifically, the front cover outer plate 9 and the front cover inner plate 1 are formed by stamping metal plates, and one end of the front cover outer plate 9, which is close to the rear side of the automobile, is bent downwards and forwards, so that the front cover inner plate 1 can be clamped and positioned while the bending part 91 of the front cover outer plate 9 forms a hemming structure.
A part of the front cover luminescent screen 5 extends to the lower side of the bending part 91 of the front cover outer plate 9, so that a gap between the front cover inner plate 1 and the cabin decorative plate 2 can be shielded by the front cover luminescent screen 5, and the whole appearance effect is prevented from being influenced by the exposure of the sealing strip 3 in the gap. Meanwhile, the end of the front cover outer plate 9, which is close to the rear side of the automobile, adopts a bent type edge wrapping structure, so that the front cover inner plate 1 can be clamped and positioned, the end of the front cover inner plate 1, which is close to the rear side of the automobile, can be shielded, and the overall appearance effect of the rear side of the front cover is improved.
In this embodiment, as shown in fig. 4, the rear sealing structure of the front cover of the automobile further includes a hemming adhesive strip 10, and the hemming adhesive strip 10 is disposed at the end of the front cover outer plate 9; the hemming adhesive tape 10 is positioned below the front cover inner plate 1 and connected with the front cover inner plate 1.
The bent portion 91 of the front cover outer panel 9 adopts a drop-shaped hemming structure, and the bottom surface of the bent portion 91 of the front cover outer panel 9 is lower than the hemming adhesive tape 10. The edge folding process adopted at one end of the front cover outer plate 9, which is close to the rear side of the automobile, provides a glue extruding space for the edge folding adhesive tape 10; meanwhile, the bottom surface of the bending part 91 of the front cover outer plate 9 can shield the hemming adhesive tape 10, so that the hemming adhesive tape 10 is effectively prevented from being seen by the sight in the vehicle, and the hemming adhesive tape 10 is prevented from affecting the visual effect.
In addition, the automobile front cover rear sealing structure provided by the embodiment can simultaneously meet the large-area cabin sealing requirement of a pure electric automobile type and the design requirement of preventing water and engine hot gas from being discharged to cause fog of front windshield of a range-extended automobile type, enhances the universality of the structure of the sealing strip 3, does not need to newly develop parts such as the sealing strip 3 and cabin decorative plates in different states for an unconventional automobile type, and saves development cost and management cost.
The embodiment also provides an automobile, which comprises the front cover and the rear sealing structure of any automobile.
The above embodiments are merely preferred embodiments for fully explaining the present application, and the scope of the present application is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present application, and are intended to be within the scope of the present application.