Automobile front cover rear sealing structure and automobile

Abstract

The application discloses a kind of automobile front cover rear sealing structure and automobile, it includes front cover inner plate, be arranged in the gap between the cabin trim panel below the front cover inner plate and with the front cover inner plate, and the sealing strip in the gap;The sealing strip includes: foamed sponge colloid, with the front cover inner plate interference contact;Compact colloid, assembled on the cabin trim panel, both ends are extended upwards and are connected with the both ends of the foamed sponge colloid corresponding, to enclose closed loop structure;In the two connecting positions of the compact colloid and the foamed sponge colloid, the connecting position close to the front side of automobile is lower than the connecting position close to the rear side of automobile, so that the part of sealing strip close to the rear side of automobile has better strength and support performance, effectively reduce the probability that sealing strip overall is collapsed at the corner of shape joint on C line, improve the overall sealing performance of automobile front cover rear sealing structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the automobile technical field, specifically relates to a kind of automobile front cover rear sealing structure and automobile. BACKGROUND

[0002] Automobile front cover rear sealing structure includes front cover sheet metal and the engine compartment trim panel being arranged below front cover sheet metal, to ensure sealing, avoid water flow into engine compartment, often arrange sealing strip between front cover sheet metal and engine compartment trim panel, sealing strip extends along the width direction of automobile, so that sealing strip overall assembly posture is C-shaped, to adapt to the C line structure of rear side of front cover.

[0003] And the sealing strip structure commonly used in prior art can be applicable to ordinary conventional vehicle, but it is not applicable to unconventional vehicle with small R angle of C line corner of rear side of front cover, the reason is that: in addition to the part of assembling with engine compartment trim panel, the rest part of conventional sealing strip is made of single foamed glue material into integral annular structure, so as to be sealed by the annular structure and front cover sheet metal and the gap between front cover sheet metal and engine compartment trim panel. And the integral annular structure made of foamed glue material is prone to collapse at C line corner R angle, so as to cause sealing performance to decline. SUMMARY

[0004] The purpose of the present application is to provide a kind of automobile front cover rear sealing structure and automobile, to solve the technical problem that conventional sealing strip structure in related art cannot be applied to automobile front cover rear sealing structure with small R angle of C line corner of rear side of front cover, prone to collapse at C line corner and reduce sealing performance.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0006] A kind of automobile front cover rear sealing structure, it includes front cover inner plate, engine compartment trim panel being arranged below front cover inner plate and having gap between front cover inner plate, and sealing strip in gap, wherein, sealing strip includes:

[0007] Foamed sponge glue body, interferes with the contact of front cover inner plate;

[0008] Compact glue body, assembled on engine compartment trim panel, both ends extend upwards and correspondingly connected with both ends of foamed sponge glue body, to enclose closed loop structure;In two connecting positions of compact glue body and foamed sponge glue body, the connecting position close to the front side of automobile is lower than the connecting position close to the rear side of automobile.

[0009] According to the above technical means, the foamed sponge colloid and the dense colloid distributed above and below form a closed loop structure of the sealing strip, and the sealing strip is arranged in the gap between the inner panel of the front cover and the cabin trim panel, thereby sealing the gap; at the same time, the sealing strip is not entirely made of foamed sponge material, but the part in interference contact with the inner panel of the front cover is made of foamed sponge colloid, and the part connected and assembled with the cabin trim panel is made of dense colloid; at the same time, since the conformal corner of the rear side C line of the front cover is a corner bent backward, the dense colloid is designed as an asymmetric structure with low front and high back, so that the part of the sealing strip close to the rear side of the automobile has better strength and support performance, effectively reducing the probability of collapse of the sealing strip at the corner of the conformal clamping on the C line, and improving the overall sealing performance of the rear sealing structure of the automobile front cover.

[0010] Further, the rear sealing structure of the automobile front cover further comprises:

[0011] Two convex ribs are located between the dense colloid and the cabin trim panel and are distributed along the front-rear direction of the automobile; one end of the convex rib is connected with the dense colloid, and the other end abuts against the cabin trim panel.

[0012] According to the above technical means, the convex rib can be interference assembled with the cabin trim panel to avoid the decline of sealing performance caused by the edge of the assembled sealing strip being raised.

[0013] Further, the foamed sponge colloid and the dense colloid are integrally extruded.

[0014] According to the above technical means, the overall processing technology of the sealing strip is simple, which can reduce the processing procedures of the overall sealing strip, thereby reducing the processing difficulty and improving the production efficiency.

[0015] Further, the foamed sponge colloid and the inner corner of the inner panel of the front cover are arranged with a spacing therebetween.

[0016] According to the above technical means, the sealing strip is prevented from being deformed and entering the inner corner of the inner panel of the front cover, thereby causing torsional friction noise.

[0017] Further, a bent portion protruding downward is arranged on the inner panel of the front cover, and the bent portion is close to the rear side of the automobile relative to the inner corner of the inner panel of the front cover; the bent portion is in interference contact with the foamed sponge colloid.

[0018] According to the above technical means, the bent portion can provide installation space for the sealing strip, and can also increase the interference amount of the sealing strip with the inner panel of the front cover, thereby widening the sealing surface and improving the sealing performance to meet the waterproof demand of the automobile.

[0019] Further, a front hood light screen is arranged on the rear side of the inner panel of the front cover and the cabin trim panel, and the front hood light screen corresponds to the gap; the sealing strip has a gap between the front hood light screen.

[0020] According to the technical means, the front cover light screen edge and the sealing strip can be kept at a distance, so that the front cover light screen and the sealing strip will not interfere with each other after assembly, and the problem of poor appearance effect caused by local explosion of the sealing strip after assembly of the vehicle is avoided.

[0021] Further, a water flow groove is arranged below the front cover light screen, and an opening of the water flow groove is arranged upward; one end of the engine compartment decorative plate close to the rear side of the vehicle is bent downward and corresponds to the opening of the water flow groove; and the bent portion of the engine compartment decorative plate is close to the rear side of the vehicle relative to the sealing strip.

[0022] According to the technical means, the water flowing into the lower part of the front cover inner plate can be guided to the opening of the water flow groove by the part of the engine compartment decorative plate close to the rear side of the vehicle before reaching the sealing strip position, effectively avoiding the water flowing into the engine compartment.

[0023] Further, a front cover outer plate is arranged above the front cover inner plate, one end of the front cover outer plate close to the rear side of the vehicle is bent downward and forward to clamp the front cover inner plate; and a part of the front cover light screen extends below the bent portion of the front cover outer plate.

[0024] According to the technical means, the gap between the front cover inner plate and the engine compartment decorative plate can be partially blocked by the front cover light screen, so as to avoid the sealing strip exposed in the gap affecting the overall appearance effect; at the same time, the end of the front cover outer plate close to the rear side of the vehicle adopts a bent edge structure, which can clamp and position the front cover inner plate and also can shield the end of the front cover inner plate close to the rear side of the vehicle, improving the overall appearance effect of the rear side of the front cover.

[0025] Further, the rear sealing structure of the vehicle front cover further comprises:

[0026] The edge folding adhesive strip is arranged at the end of the front cover outer plate; the edge folding adhesive strip is located below the front cover inner plate and connected with the front cover inner plate.

[0027] The bottom surface of the bent portion of the front cover outer plate is lower than the edge folding adhesive strip.

[0028] According to the technical means, the edge folding process adopted by the end of the front cover outer plate close to the rear side of the vehicle provides a space for the edge folding adhesive strip; at the same time, the bottom surface of the bent portion of the front cover outer plate can shield the edge folding adhesive strip, effectively avoiding the edge folding adhesive strip being seen from the inside of the vehicle, so as to avoid the edge folding adhesive strip affecting the visual effect.

[0029] A vehicle comprising any one of the rear sealing structure of the vehicle front cover.

[0030] The beneficial effects of the present application are:

[0031] (1) The compact colloid is designed as an asymmetric structure with low front and high back, so that the part of the sealing strip close to the rear side of the automobile has better strength and support performance, effectively reducing the probability of collapse of the overall sealing strip at the corner of the C-line random shape joint, and improving the overall sealing performance of the rear sealing structure of the automobile front cover.

[0032] (2) The lower part of the compact colloid is provided with a protruding rib, which can be assembled and sealed by interference with the cabin trim panel, avoiding the decline of sealing performance caused by the edge of the sealing strip after assembly; and a downward protruding bending part is arranged on the inner panel of the front cover, which can provide installation space for the sealing strip, and also increase the interference amount of the sealing strip and the inner panel of the front cover, thereby widening the sealing surface and improving the sealing performance to meet the waterproof demand of the automobile. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a partial structure schematic diagram of the rear sealing structure of the automobile front cover below the inner panel of the front cover according to the embodiment of the present application;

[0034] Figure 2 is a whole top view of the rear sealing structure of the automobile front cover according to the embodiment of the present application;

[0035] Figure 3 is Figure 2 A-A sectional view in the figure;

[0036] Figure 4 is Figure 3 a local enlarged schematic diagram at B.

[0037] In the figure, 1 is the inner panel of the front cover; 11 is the inner included angle; 12 is the bending part; 2 is the cabin trim panel; 21 is the mounting surface; 22 is the first side vertical surface; 23 is the second side vertical surface; 24 is the second buckle; 3 is the sealing strip; 31 is the foamed sponge colloid; 32 is the compact colloid; 4 is the protruding rib; 5 is the front engine cover light screen; 6 is the water channel; 61 is the water blocking tooth; 7 is the buckle; 8 is the cabin cover plate; 81 is the groove; 9 is the outer panel of the front cover; 91 is the bending part; and 10 is the edge sealing strip. DETAILED DESCRIPTION

[0038] The embodiments of the present application will be described below with reference to the accompanying drawings and preferred embodiments, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure in the specification. The present application can also be implemented or applied by means of other different specific embodiments, and various modifications or changes can be made to the details in the specification based on different views and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, but not for limiting the protection scope of the present application.

[0039] It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented. The actual implementation of each component may be a random change, and the component layout may be more complex.

[0040] The present embodiment provides a rear sealing structure of an automobile front cover, as shown in Figure 1 and Figure 4 , the rear sealing structure of the automobile front cover comprises a front cover inner plate 1, a cabin trim plate 2 and a sealing strip 3; the front cover inner plate 1 and the cabin trim plate 2 are arranged up and down, and there is a gap between the front cover inner plate 1 and the cabin trim plate 2; the sealing strip 3 is arranged in the gap, and the upper part of the sealing strip 3 is in interference contact with the front cover inner plate 1, and the lower part of the sealing strip 3 is connected and assembled with the cabin trim plate 2, thereby sealing the gap.

[0041] In the present embodiment, the sealing strip 3 is not entirely made of foamed rubber material, but the part in interference contact with the front cover inner plate 1 is made of foamed sponge rubber 31, and the part connected and assembled with the cabin trim plate 2 is made of dense rubber 32. Specifically, the sealing strip 3 comprises the foamed sponge rubber 31 and the dense rubber 32 which enclose a closed loop structure; wherein the foamed sponge rubber 31 and the dense rubber 32 are distributed up and down, the foamed sponge rubber 31 is in interference contact with the front cover inner plate 1, and the dense rubber 32 is connected and assembled with the cabin trim plate 2. Both ends of the dense rubber 32 extend upward, and the two ends of the dense rubber 32 correspond to and are connected with the two ends of the foamed sponge rubber 31 respectively, thereby enclosing a closed loop structure.

[0042] Since the conformal corner R of the rear side C line of the front cover (as shown in Figure 1 ) is a corner bent backward, in the present embodiment: along the front-rear direction of the automobile, the two connection positions of the dense rubber 32 and the foamed sponge rubber 31 are distributed in front of and behind each other, and among the two connection positions, the connection position close to the front side of the automobile is lower than the connection position close to the rear side of the automobile, so that the dense rubber 32 is designed as an asymmetric structure with higher rear and lower front, and the asymmetric structure of the dense rubber 32 can better adapt to the corner of the rear side C line of the front cover bent backward, and the part of the sealing strip 3 close to the rear side of the automobile has better strength and supporting performance, effectively reducing the probability of collapse of the sealing strip 3 as a whole at the corner of the conformal connection on the C line, and achieving the purpose of improving the overall sealing performance of the rear sealing structure of the automobile front cover.

[0043] In the present embodiment, as shown in Figure 4 , the rear sealing structure of the automobile front cover further comprises two protruding ribs 4, both of which are located between the dense rubber 32 and the cabin trim plate 2 and are distributed in front of and behind each other along the front-rear direction of the automobile. One end of the protruding rib 4 is connected with the dense rubber 32, and the other end abuts against the cabin trim plate 2.

[0044] By arranging the convex rib 4 on the sealing strip 3, the interference assembly between the sealing strip 3 and the cabin trim panel 2 can be increased, and the decline of the sealing performance caused by the edge of the sealing strip 3 after assembly is avoided.

[0045] In the embodiment, the foamed sponge colloid 31 and the dense colloid 32 are integrally extruded and molded, so that the overall processing process of the sealing strip 3 is simple, the overall processing procedure of the sealing strip 3 can be reduced, the processing difficulty is reduced, and the production efficiency is improved.

[0046] In the embodiment, the foamed sponge colloid 31 is arranged at intervals between the inner corner 11 of the front cover inner panel 1, and the foamed sponge colloid 31 is close to the rear side of the automobile relative to the inner corner 11 of the front cover inner panel 1. The foamed sponge colloid 31 is arranged at intervals between the inner corner 11 of the front cover inner panel 1, which can effectively avoid the sealing strip 3 from entering the inner corner 11 of the front cover inner panel 1 after interference deformation, thereby avoiding the torsional friction abnormal noise of the sealing strip 3 at the inner corner 11 of the front cover inner panel 1.

[0047] In one implementation manner of the embodiment, as shown in Figure 3 and Figure 4 , the spacing d1 between the boundary of the sealing strip 3 close to the front side of the automobile and the inner corner 11 of the front cover inner panel 1 is not less than 3 mm, thereby providing sufficient deformation space for the sealing strip 3.

[0048] In the embodiment, as shown in Figure 4 , the front cover inner panel 1 is provided with a bending portion 12, the bending portion 12 is arranged to protrude downward, and the bending portion 12 is close to the rear side of the automobile relative to the inner corner 11 of the front cover inner panel 1. The bending portion 12 interferes with the foamed sponge colloid 31, thereby providing installation space for the sealing strip 3 through the bending portion 12, and also increasing the interference amount of the sealing strip 3 with the front cover inner panel 1 through the bending portion 12, thereby widening the sealing surface and improving the sealing performance to meet the waterproof demand of the automobile.

[0049] In the embodiment, the rear side of the front cover inner panel 1 and the cabin trim panel 2 is arranged with a front hood light screen 5 (as shown in Figures 1-4 ), and the front hood light screen 5 corresponds to the gap; the sealing strip 3 has a gap with the front hood light screen 5, so that the edge of the front hood light screen 5 can keep a certain distance from the sealing strip 3, and it is ensured that the front hood light screen 5 and the sealing strip 3 will not interfere with each other after assembly, thereby avoiding the problem that the sealing strip 3 appears local outburst after real vehicle assembly and causes poor appearance effect.

[0050] In one implementation manner of the embodiment, as shown in Figure 3 and Figure 4As shown in the figures, the distance d2 between the boundary of the engine room decorative plate 2 close to the rear side of the automobile and the boundary of the front hood light-emitting screen 5 close to the front side of the automobile is not less than 5 mm, so as to effectively avoid interference noise during automobile driving.

[0051] In this embodiment, as shown in the figures, Figure 1 , Figure 2 and Figure 3 , a water flow groove 6 is arranged below the front hood light-emitting screen 5, and the opening of the water flow groove 6 is arranged upwardly. Figure 3 and Figure 4 , one end of the engine room decorative plate 2 close to the rear side of the automobile is bent downwardly to form a first side vertical surface 22, which corresponds to the opening of the water flow groove 6.

[0052] Specifically, the water flow groove 6 has a water blocking tooth 61, and the water blocking tooth 61 is adjacent to the opening of the water flow groove 6; the bent portion of the engine room decorative plate 2 (i.e. the joint between the first side vertical surface 22 and the mounting surface 21) is close to the rear side of the automobile relative to the sealing strip 3; and the end of the engine room decorative plate 2 close to the rear side of the automobile, i.e. the end of the first side vertical surface 22, extends to the rear side of the water blocking tooth 61 and is opposite to the opening of the water flow groove 6, so that the water flow entering below the front cover inner plate 1 can be guided to the opening of the water flow groove 6 by the portion of the engine room decorative plate 2 close to the rear side of the automobile before reaching the sealing strip 3, effectively avoiding the water flow entering the engine room.

[0053] Meanwhile, the engine room decorative plate 2 can also shield the water flow groove 6 to some extent, ensuring the appearance neatness after the front cover is opened.

[0054] In this embodiment, as shown in the figures, Figure 3 , the engine room decorative plate 2 has a mounting surface 21 for mounting the dense adhesive 32; and the two protruding ribs 4 are in abutment with the mounting surface 21. The automobile front cover rear sealing structure further comprises a buckle 7, and the mounting surface 21 is provided with a clamping groove; the buckle 7 is arranged on the dense adhesive 32 and is in clamping engagement with the clamping groove, so as to realize the assembly between the sealing strip 3 and the engine room decorative plate 2.

[0055] As shown in the figures, Figure 3 and Figure 4As shown, the end of the engine compartment decorative plate 2 close to the front side of the automobile is bent downward to form a second side vertical surface 23. In this embodiment, the automobile front cover rear sealing structure further comprises an engine cover plate 8, which is located below the front cover inner plate 1 and the engine compartment decorative plate 2 and close to the front side of the automobile relative to the water channel 6. The second buckle 24 is arranged on the engine compartment decorative plate 2, which is buckled with the engine cover plate 8 to realize the assembly positioning between the engine compartment decorative plate 2 and the engine cover plate 8. At the same time, the engine cover plate 8 is provided with a downward recessed groove 81, which is located in front of the second buckle 24, and the end of the second side vertical surface 23 of the engine compartment decorative plate 2 extends downward into the groove 81, so that the interference between the engine compartment decorative plate 2 and the engine cover plate 8 is increased through the cooperation of the groove 81 and the second side vertical surface 23, and the stability of the assembly between the engine compartment decorative plate 2 and the engine cover plate 8 is improved.

[0056] As shown in Figure 2 , Figure 3 and Figure 4 , the upper part of the front cover inner plate 1 is arranged with a front cover outer plate 9, which is installed in cooperation with the front cover inner plate 1 and together constitutes the front cover sheet metal. Specifically, the front cover outer plate 9 and the front cover inner plate 1 are stamped and formed by metal sheet metal, and the end of the front cover outer plate 9 close to the rear side of the automobile is bent downward and forward, so that the bent part 91 of the front cover outer plate 9 forms a wrapped edge structure while clamping and positioning the front cover inner plate 1.

[0057] Part of the front hood light screen 5 extends below the bent part 91 of the front cover outer plate 9, so that the gap between the front cover inner plate 1 and the engine compartment decorative plate 2 can be partially blocked by the front hood light screen 5, thereby avoiding the exposure of the seal strip 3 in the gap to affect the overall appearance effect. At the same time, the end of the front cover outer plate 9 close to the rear side of the automobile adopts a bent wrapping structure, which can clamp and position the front cover inner plate 1 and also can shield the end of the front cover inner plate 1 close to the rear side of the automobile, thereby improving the overall appearance effect of the rear side of the front cover.

[0058] As shown in Figure 4 , the automobile front cover rear sealing structure further comprises a folded edge rubber strip 10, which is arranged at the end of the front cover outer plate 9; the folded edge rubber strip 10 is located below the front cover inner plate 1 and connected with the front cover inner plate 1.

[0059] The bent part 91 of the front cover outer plate 9 adopts a water drop-shaped wrapping structure, and the bottom surface of the bent part 91 of the front cover outer plate 9 is lower than the folded edge rubber strip 10. The folding edge process adopted by the end of the front cover outer plate 9 close to the rear side of the automobile provides a rubber extrusion space for the folded edge rubber strip 10; at the same time, the bottom surface of the bent part 91 of the front cover outer plate 9 can shield the folded edge rubber strip 10, effectively avoiding the view inside the car from seeing the folded edge rubber strip 10, thereby avoiding the influence of the folded edge rubber strip 10 on the visual effect.

[0060] In addition, the automobile front cover rear sealing structure provided by the embodiment can simultaneously meet the large-area engine compartment sealing requirement of a pure electric vehicle type and the design requirement of preventing water and hot engine gas from jumping out to cause the front windshield to fog, and the universality of the sealing strip 3 structure is enhanced, without the need to newly develop sealing strips 3 and engine compartment decorative plates in different states and other components for unconventional vehicle types, thereby saving development costs and management costs.

[0061] The embodiment further provides an automobile, which comprises the automobile front cover rear sealing structure according to any one of the above.

[0062] The above embodiment is only a preferred embodiment for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent replacement or transformation made by a person skilled in the art on the basis of the present application is within the protection scope of the present application.

Claims

1. A front hood rear sealing structure for automobiles, comprising a front hood inner panel, a cabin trim panel disposed below the front hood inner panel and having a gap between the front hood inner panel and the front hood inner panel, and a sealing strip located within the gap, characterized in that, The sealing strip includes: The foamed sponge colloid makes interference contact with the inner panel of the front cover; A dense colloid is fitted onto the cabin trim panel, with both ends extending upwards and correspondingly connecting to the two ends of the foamed sponge colloid to form a closed loop structure; in the two connection positions between the dense colloid and the foamed sponge colloid, the connection position closer to the front of the car is lower than the connection position closer to the rear of the car. A hood light-emitting screen is arranged on the rear side of the inner front hood panel and the engine compartment trim panel, and the hood light-emitting screen corresponds to the gap; there is a gap between the sealing strip and the hood light-emitting screen; a water channel is arranged below the hood light-emitting screen, and the opening of the water channel is upward; the end of the engine compartment trim panel near the rear of the vehicle is bent downward to form a first side facade, and the first side facade corresponds to the opening of the water channel; the water channel has water-blocking teeth, and the water-blocking teeth are adjacent to the opening of the water channel; the bent part of the engine compartment trim panel is near the rear of the vehicle relative to the sealing strip, and the end of the first side facade extends to the rear side of the water-blocking teeth and is opposite to the opening of the water channel.

2. The rear sealing structure for a car front hood according to claim 1, characterized in that, It also includes: Two raised ribs are located between the solid colloid and the cabin trim panel, and are distributed along the front-rear direction of the vehicle; one end of the raised rib is connected to the solid colloid, and the other end abuts against the cabin trim panel.

3. The rear sealing structure for a car front hood according to claim 1, characterized in that, The foamed sponge colloid and the dense colloid are integrally extruded and molded.

4. The rear sealing structure for a car front hood according to claim 1, characterized in that, The foamed sponge colloid is arranged at intervals between the inner angle of the foamed sponge colloid and the inner angle of the front cover inner panel.

5. The automotive front hood rear sealing structure according to claim 4, characterized in that, The inner panel of the front cover has a downwardly protruding bent portion, and the included angle of the bent portion relative to the inner panel of the front cover is close to the rear side of the car; the bent portion makes interference contact with the foamed sponge colloid.

6. The rear sealing structure for a car front hood according to claim 1, characterized in that, A front hood outer panel is arranged above the inner front hood panel. The end of the outer front hood panel near the rear of the vehicle is bent downward and forward to clamp the inner front hood panel. A portion of the hood light-emitting screen extends below the bend of the outer front hood panel.

7. The rear sealing structure for a car front hood according to claim 6, characterized in that, It also includes: A folded edge adhesive strip is provided at the end of the outer panel of the front cover; the folded edge adhesive strip is located below the inner panel of the front cover and is connected to the inner panel of the front cover; The bottom surface of the bend in the outer front panel is lower than the edge rubber strip.

8. A car, characterized in that, It includes the rear sealing structure of the automotive front cover as described in any one of claims 1-7.

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