Reinforcing structure of double-layer sealing front wall of automobile and automobile

Abstract

The invention discloses a reinforcing structure of an automobile double-layer sealing front wall and an automobile. A front wall assembly is fixedly connected with a front wall cross beam assembly in an aligned mode. Each front shock absorption tower is fixedly connected with the corresponding front wheel cover rear fender, the corresponding front longitudinal beam assembly and the corresponding front wheel cover upper connecting beam. The water tank front plate is detachably and fixedly connected with the front wall cross beam assembly and the pair of water tank side connecting plates on the two sides. Each front wheel cover rear fender is fixedly connected with the front wall beam assembly and the water tank side connecting plate in an aligned mode. The two ends of each front shock absorption tower supporting rod are detachably and fixedly connected with the front wall assembly and the front shock absorption tower in an aligned mode. The two ends of each side supporting rod are detachably and fixedly connected with one front shock absorption tower supporting rod and one side wall front column plate correspondingly in an aligned mode. A reinforcing structure can be achieved in the structure, the NVH performance, the safety performance and the rigidity of an automobile can be improved, and the production cost is reduced while the requirement for light weight of an automobile front cabin is met.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle body structures, and in particular to a reinforcement structure of a double-layer sealed front wall of an automobile and the automobile. Background Art

[0002] The dash panel of a car is located between the cockpit and the engine compartment, and plays the role of heat insulation, force transmission and protection of the cockpit space; however, in the related art, the stiffness and strength of the dash panel of a car are generally low, and it is easy to be excited by the powertrain of the car to cause resonance, thereby producing a roaring phenomenon in the car.

[0003] For this reason, some cars take the approach of adding a layer of metal structure to form a "double-layer sealed wall" with the front panel to strengthen the connection between the cabin and the passenger compartment; however, this structure is usually unable to be effectively strengthened due to structural limitations such as space, resulting in lower strength and insufficient rigidity of the front panel. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a reinforcement structure of a double-layer sealed front panel of an automobile, in which a reinforcement structure can be realized, which can improve the NVH (Noise, Vibration, Harshness) performance, safety performance and rigidity of the automobile, meet the lightweight requirements of the front engine compartment of the automobile while reducing production costs.

[0005] The invention provides a reinforcement structure of a double-layer sealed front wall of an automobile, comprising a front wall assembly, a front wall crossbeam assembly, a pair of front shock towers, a pair of front longitudinal beam assemblies, a pair of front wheel cover upper connecting beams, a pair of water tank side connecting plates, a pair of front shock tower support rods, a pair of side support rods, a water tank front plate, a pair of side wall front pillar plates and a pair of front wheel cover rear fenders;

[0006] The front enclosure assembly is aligned and fixedly connected to the front enclosure crossbeam assembly; each of the front shock absorber towers is respectively fixedly connected to the aligned rear fender of the front wheel cover, the front longitudinal beam assembly and the upper connecting beam of the front wheel cover; the front trough plate is respectively aligned and fixedly connected to the front enclosure crossbeam assembly and a pair of trough side connecting plates on both sides; each of the rear fenders of the front wheel cover is respectively aligned and fixedly connected to the front enclosure crossbeam assembly and the trough side connecting plates; each of the two ends of the front shock absorber tower support rod is respectively aligned and fixedly connected to the front enclosure assembly and the front shock absorber tower; each of the two ends of the side support rod is respectively aligned and fixedly connected to a front shock absorber tower support rod and a side enclosure front pillar plate.

[0007] The lower part of the front enclosure assembly is overlapped with the front enclosure crossbeam assembly and fixedly connected by spot welding; the front end of the front enclosure crossbeam assembly is provided with a welding stud protruding forward, and the water tank front plate is aligned and fixed with the front enclosure crossbeam assembly by screwing the welding stud; the upper part of the front enclosure crossbeam assembly is provided with a water tank front plate connecting piece, and the overall cross section of the water tank front plate connecting piece is "L" shaped, consisting of the horizontal surface of the water tank front plate and the vertical surface of the water tank front plate; the horizontal surface of the water tank front plate and the front enclosure crossbeam assembly are fixedly connected by spot welding; the front end of the front enclosure crossbeam assembly is provided with a welding stud protruding forward, and the water tank front plate is fixedly connected with the front enclosure crossbeam assembly by screwing the welding stud; the upper part of the front enclosure crossbeam assembly is provided with a water tank front plate connecting piece, and the overall cross section of the water tank front plate connecting piece is "L" shaped, and consists of the horizontal surface of the water tank front plate and the vertical surface of the water tank front plate; the horizontal surface of the water tank front plate and the front enclosure crossbeam assembly are fixedly connected by spot welding. The two ends of the upper surface of the front wall crossbeam assembly are respectively connected to the upper horizontal surfaces of the two rear fenders of the front wheel housings by spot welding; the middle end surface of the upper surface of the front wall crossbeam assembly is connected to the horizontal surface of the front plate of the water tank of the water tank front plate connecting part by spot welding; the rear fender of the front wheel housing is "L" shaped as a whole, and the lower end vertical surface of the front wheel housing rear fender and the vertical surface of the water tank front plate are respectively overlapped with the front plate of the water tank.

[0008] Each of the front shock absorber towers is made of vacuum high-pressure cast aluminum. The lower surface of the front shock absorber tower is fixedly connected to the front longitudinal beam assembly by riveting, and a structural adhesive is arranged between the two to ensure the connection strength. The upper area of ​​the front shock absorber tower is fixedly connected to the upper connecting beam of the front wheel cover by riveting, and a structural adhesive is arranged between the two to ensure the connection strength. The rear end surface of the front shock absorber tower is fixedly connected to the rear fender of the front wheel cover by riveting, and a structural adhesive is arranged between the two to ensure the connection strength. The inner end surface of the front shock absorber tower is fixedly connected to the The connecting plate on the water tank side is fixedly connected by riveting, and structural adhesive is arranged between the two to ensure the connection strength; a U-shaped notch is arranged in the middle of the overlapping area between the lower part of the front shock absorber tower and the front longitudinal beam assembly to ensure the matching accuracy of the front shock absorber tower and the front longitudinal beam assembly, while reducing the weight of the front shock absorber tower and improving the lightweight level; a wire screw sleeve is arranged inside the upper surface of the front shock absorber tower for fixing and connecting the front shock absorber tower support rod; the front shock absorber tower is provided with "L"-shaped reinforcement ribs running through the upper surface and the side to enhance the overall strength of the part.

[0009] Each of the sink side connecting plates is an L-shaped structure as a whole, and a welding nut is provided on the sink side connecting plate at the edge of the sink side close to the front enclosure assembly, and the sink front plate is aligned and fixed to the sink side connecting plate by welding nuts; the sink side connecting plate is riveted to the front shock absorber tower at the edge adjacent to the front shock absorber tower; the lower edge of the sink side connecting plate is spot-welded to the rear fender of the front wheel cover; the upper edge of the sink side connecting plate is in the same plane as the upper end surface of the sink front plate to ensure the overlap and seal with the sink cover plate; the left end surface of the sink front plate, the lower end surface of the sink front plate and the right end surface of the sink front plate are circumferentially provided with a "U"-shaped sealing strip to ensure that the sink front plate is connected to the sink sides on both sides After the plate and the sink front plate connecting parts are overlapped, the metals can be effectively sealed to prevent the gas and water inside the front cabin from flowing into the passenger compartment; a pair of limiting folded edges are symmetrically arranged on the lower end surface of the sink front plate, and main and auxiliary positioning holes are arranged on them; the left end surface of the sink front plate and the right end surface of the sink front plate are respectively provided with mounting holes corresponding to the welding nuts; during installation, the main and auxiliary positioning holes on a pair of limiting folded edges are first pre-hung on the welding studs of the front surround crossbeam assembly to ensure that the sink front plate is stable in the correct installation position and facilitate workers' operation; then, the mounting holes on the left end surface and the right end surface of the sink front plate are aligned with the welding nuts on the sink side connecting plate in turn, and the fastening bolts are installed.

[0010] Each of the front shock absorber tower support rods is arranged between the front shock absorber tower and the front enclosure assembly, the rear end of the front shock absorber tower support rod is aligned and connected to the front enclosure assembly, and the front end of the front shock absorber tower support rod is aligned and connected to the front shock absorber tower; each of the side support rods is arranged between the water tank side connecting plate and the side enclosure front pillar plate, the front end of the side support rod is aligned and connected to the front of the front shock absorber tower support rod, and the rear end of the side support rod is connected to the side enclosure front pillar plate.

[0011] The front shock absorber tower support rod is an extruded cylindrical hollow aluminum tube structure as a whole. In order to achieve the lightweight requirement, the two ends of the cylindrical hollow aluminum tube structure are pressed together to form the rear end of the front shock absorber tower support rod and the front end of the front shock absorber tower support rod to meet the connection requirements. The mounting surface pressing structure at both ends of the cylindrical hollow aluminum tube structure can effectively prevent the torque attenuation of the fastening bolts and increase the connection reliability; both sides of the pressing surface of the rear end of the front shock absorber tower support rod and the front end of the front shock absorber tower support rod are provided with raised ribs to enhance the strength of the parts; the first mounting hole and the second mounting hole are respectively provided on the pressing surface of the rear end of the front shock absorber tower support rod and the front end of the front shock absorber tower support rod. A hole and a third mounting hole, the front enclosure assembly is also respectively provided with a pair of front shock absorber tower support rod mounting brackets corresponding to the positions of the pair of front shock absorber tower support rods, and welding nuts are arranged inside the brackets, which are connected to the front shock absorber tower support rods through fastening bolts and the first mounting hole; the second mounting hole is connected to the wire screw sleeve inside the upper surface of the front shock absorber tower by bolts; the third mounting hole is fixedly connected to the front end of the side support rod; the front shock absorber tower is designed as a vacuum high-pressure cast aluminum part, the front shock absorber tower support rod is designed as an extruded aluminum tube, and other parts are designed as steel parts, which together form a steel-aluminum mixed reinforced structure of the front engine compartment, which can effectively reduce the weight of the whole vehicle and ensure the rigidity of the whole vehicle.

[0012] The cross-section of the side strut is a "U"-shaped structure, and its material is a steel plate, which can increase the overall stiffness and strength; the front end of the side strut is overlapped under the front end of the front shock tower support rod, and the front end mounting hole of the side strut is aligned with the third mounting hole, and is fixedly connected by fastening bolts; the rear end of the side strut is aligned with the side panel front pillar and is fixedly connected by fastening bolts; a weight-reducing hole is provided in the middle of the side strut to improve the lightweight level.

[0013] The two ends of each front shock tower support rod are respectively connected to the front panel assembly and the front shock tower, and the two ends of each side support rod are respectively connected to the side panel front pillar plate and the front shock tower support rod; the "V"-shaped tubular beam support structure formed by the front shock tower support rod and the side support rod on both sides of the cabin, together with the front panel assembly, forms a triangular area, which can effectively enhance the overall stiffness of the front section of the front cabin, improve the overall stability of the front cabin, and enhance the NVH performance of the whole vehicle; at the same time, it reduces the intrusion into the front panel when the car collides, and improves the collision performance and the carrying capacity of the front cabin.

[0014] The front plate of the water tank is connected to the water tank side connecting plates on the left and right sides, and together with the front shock tower, the front pillar panel of the side panel, the rear fender of the front wheel cover and the front panel assembly, it forms a "concave"-shaped cavity structure with a closed bottom and all sides. It can effectively reduce the noise and gas generated by the engine, gearbox, etc. inside the front cabin from being transmitted to the passenger compartment, thereby improving the NVH performance of the entire vehicle.

[0015] A car comprises a vehicle sheet metal and a reinforcement structure of a double-layer sealed front wall of the car. The reinforcement structure of the double-layer sealed front wall of the car is arranged at the front part of the vehicle sheet metal.

[0016] Beneficial Effects

[0017] The present invention can achieve a reinforced structure in this structure, which can improve the NVH performance, safety performance and rigidity of the automobile, meet the lightweight requirements of the front engine room of the automobile and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is an enlarged structural schematic diagram of the front wall cross beam assembly of the present invention.

[0020] Figure 3 It is an enlarged structural schematic diagram of the sink front plate connecting piece of the present invention.

[0021] Figure 4 This is a partial enlarged structure schematic diagram of the present invention Figure 1 .

[0022] Figure 5 It is a schematic diagram of the enlarged structure of the front shock tower of the present invention.

[0023] Figure 6 It is an enlarged structural schematic diagram of the sink side connecting plate of the present invention.

[0024] Figure 7 This is a partial enlarged structure schematic diagram of the present invention Figure 2 .

[0025] Figure 8 It is a schematic diagram of the enlarged structure of the front shock tower support rod of the present invention.

[0026] Fig. 9 It is a schematic diagram of the enlarged structure of the side support rod of the present invention.

[0027] Fig.10 It is a schematic diagram of the "V"-shaped tube beam support structure and the "concave"-shaped cavity structure of the present invention.

[0028] Fig.11 It is a schematic diagram of the enlarged structure of the front shock tower support rod mounting bracket of the present invention.

[0029] Fig.12 It is a schematic diagram of the connection structure between the side connecting plate of the water tank and the front plate of the water tank of the present invention.

[0030] In the figure:

[0031] 1.1. Front enclosure assembly; 1.1.1. Front shock tower support rod mounting bracket;

[0032] 1.2. Front wall crossbeam assembly; 1.2.1. Welding studs; 1.2.2. Connectors of front plate of water tank; 1.2.2.1. Horizontal surface of front plate of water tank; 1.2.2.2. Vertical surface of front plate of water tank;

[0033] 1.3, front shock absorber tower; 1.3.1, lower surface of front shock absorber tower; 1.3.2, upper area of ​​front shock absorber tower; 1.3.3, rear end surface of front shock absorber tower; 1.3.4, inner end surface of front shock absorber tower; 1.3.5, upper surface of front shock absorber tower; 1.3.6, "L" type reinforcement rib;

[0034] 1.4, front longitudinal beam assembly;

[0035] 1.5. Connecting beam on front wheel housing;

[0036] 1.6, water tank side connecting plate; 1.6.1, water tank side edge; 1.6.2, welding nut; 1.6.3, edge of the front shock tower; 1.6.4, lower edge; 1.6.5, upper edge;

[0037] 1.7, front shock tower support rod; 1.7.1, rear end of the front shock tower support rod; 1.7.2, front end of the front shock tower support rod; 1.7.3, raised rib; 1.7.4, first mounting hole; 1.7.5, second mounting hole; 1.7.6, third mounting hole;

[0038] 1.8, side support rod; 1.8.1, front end of side support rod; 1.8.2, rear end of side support rod; 1.8.3, weight reduction hole;

[0039] 1.9, sink front plate; 1.9.1, left end surface of sink front plate; 1.9.2, lower end surface of sink front plate; 1.9.3, right end surface of sink front plate; 1.9.4, "U"-shaped sealing strip; 1.9.5, limit folding edge;

[0040] 1.10, side panel front pillar;

[0041] 1.11, front wheel housing and rear fender; 1.11.1, upper horizontal surface; 1.11.2, lower vertical surface. DETAILED DESCRIPTION

[0042] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0043] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Example 1

[0046] See also Figure 1-Figure 12 As shown, a reinforcement structure of a double-layer sealed front wall of an automobile comprises a front wall assembly 1.1, a front wall cross beam assembly 1.2, a pair of front shock towers 1.3, a pair of front longitudinal beam assemblies 1.4, a pair of front wheel cover upper connecting beams 1.5, a pair of water tank side connecting plates 1.6, a pair of front shock tower support rods 1.7, a pair of side support rods 1.8, a water tank front plate 1.9, a pair of side wall front pillar plates 1.10 and a pair of front wheel cover rear fenders 1.11;

[0047] The front enclosure assembly 1.1 is aligned and fixedly connected to the front enclosure crossbeam assembly 1.2; each of the front shock towers 1.3 is respectively fixedly connected to the aligned front wheel cover rear fender 1.11, the front longitudinal beam assembly 1.4 and the front wheel cover upper connecting beam 1.5; the water tank front plate 1.9 is respectively aligned and fixedly connected to the front enclosure crossbeam assembly 1.2 and a pair of water tank side connecting plates 1.6 on both sides; each of the front wheel cover rear fenders 1.11 is respectively aligned and fixedly connected to the front enclosure crossbeam assembly 1.2 and the water tank side connecting plates 1.6; each of the front shock tower support rods 1.7 has two ends aligned and fixedly connected to the front enclosure assembly 1.1 and the front shock tower 1.3; each of the side support rods 1.8 has two ends aligned and fixedly connected to a front shock tower support rod 1.7 and a side enclosure front pillar plate 1.10.

[0048] The lower part of the front enclosure assembly 1.1 is overlapped with the front enclosure crossbeam assembly 1.2 and fixedly connected by spot welding; the front end of the front enclosure crossbeam assembly 1.2 is provided with a welding stud 1.2.1, and the water tank front plate 1.9 is aligned and fixed to the front enclosure crossbeam assembly 1.2 by screwing through the welding stud 1.2.1; the upper part of the front enclosure crossbeam assembly 1.2 is provided with a water tank front plate connecting piece 1.2.2, and the overall cross section of the water tank front plate connecting piece 1.2.2 is "L" shaped, and is composed of a water tank front plate horizontal surface 1.2.2.1 and a water tank front plate vertical surface 1.2.2.2; wherein the water tank front plate horizontal surface 1.2.2.1 and the front enclosure crossbeam assembly 1.2 are spot welded. The two trough front plates are fixedly connected by welding, and the vertical surface 1.2.2.2 of the trough front plate overlaps the trough front plate 1.9; the end surfaces at both ends of the upper surface of the front enclosure crossbeam assembly 1.2 are respectively connected to the upper horizontal surfaces 1.11.1 of the two front wheel housing rear fenders 1.11 by spot welding; the end surface in the middle position of the upper surface of the front enclosure crossbeam assembly 1.2 is connected to the horizontal surface 1.2.2.1 of the trough front plate connecting piece 1.2.2 by spot welding; the front wheel housing rear fender 1.11 is "L"-shaped as a whole, and the lower end vertical surface 1.11.2 of the front wheel housing rear fender 1.11 and the vertical surface 1.2.2.2 of the trough front plate are respectively overlapped with the trough front plate 1.9.

[0049] Each of the front shock absorber towers 1.3 is made of vacuum high-pressure cast aluminum. The lower surface 1.3.1 of the front shock absorber tower is fixedly connected to the front longitudinal beam assembly 1.4 by riveting, and structural glue is arranged between the two. The upper area 1.3.2 of the front shock absorber tower is fixedly connected to the upper connecting beam 1.5 of the front wheel cover by riveting, and structural glue is arranged between the two. The rear end surface 1.3.3 of the front shock absorber tower is fixedly connected to the rear fender 1.11 of the front wheel cover by riveting, and structural glue is arranged between the two. The inner end surface 1.3.4 of the front shock absorber tower is fixedly connected to the water tank side connecting plate 1.6 by riveting, and structural glue is arranged between the two. A U-shaped notch is arranged in the middle of the overlapping area between the lower part of the front shock absorber tower 1.3 and the front longitudinal beam assembly 1.4; a wire screw sleeve is arranged inside the upper surface 1.3.5 of the front shock absorber tower; and an "L"-shaped reinforcing rib 1.3.6 penetrating the upper surface and the side is arranged on the front shock absorber tower 1.3.

[0050] Each of the water tank side connecting plates 1.6 is an L-shaped structure as a whole. The water tank side connecting plate 1.6 is provided with a welding nut 1.6.2 at a water tank side edge 1.6.1 near the front enclosure assembly 1.1. The water tank front plate 1.9 is aligned and connected and fixed to the water tank side connecting plate 1.6 through the welding nut 1.6.2; the water tank side connecting plate 1.6 is connected to the front shock absorber tower 1.3 by riveting at an edge 1.6.3 adjacent to the front shock absorber tower 1.3; the lower edge 1.6.4 of the water tank side connecting plate 1.6 is spot-welded to the rear fender 1.11 of the front wheel cover; The upper edge 1.6.5 of the sink side connecting plate 1.6 is in the same plane as the upper end surface of the sink front plate 1.9; the left end surface 1.9.1 of the sink front plate, the lower end surface 1.9.2 of the sink front plate and the right end surface 1.9.3 of the sink front plate are circumferentially provided with a "U"-shaped sealing strip 1.9.4; a pair of limiting folded edges 1.9.5 are symmetrically provided on the lower end surface 1.9.2 of the sink front plate, and main and auxiliary positioning holes are provided on them; mounting holes corresponding to the welding nuts 1.6.2 are respectively provided on the left end surface 1.9.1 of the sink front plate and the right end surface 1.9.3 of the sink front plate.

[0051] Each of the front shock absorber tower support rods 1.7 is arranged between the front shock absorber tower 1.3 and the front enclosure assembly 1.1, the rear end 1.7.1 of the front shock absorber tower support rod is aligned with and connected to the front enclosure assembly 1.1, and the front end 1.7.2 of the front shock absorber tower support rod is aligned with and connected to the front shock absorber tower 1.3; each of the side support rods 1.8 is arranged between the water tank side connecting plate 1.6 and the side enclosure front pillar plate 1.10, the front end 1.8.1 of the side support rod is aligned with and connected to the front of the front shock absorber tower support rod 1.7, and the rear end 1.8.2 of the side support rod is connected to the side enclosure front pillar plate 1.10.

[0052] The front shock absorber tower support rod 1.7 is an extruded cylindrical hollow aluminum tube structure, and the two ends of the cylindrical hollow aluminum tube structure are pressed together to form a rear end 1.7.1 of the front shock absorber tower support rod and a front end 1.7.2 of the front shock absorber tower support rod; raised ribs 1.7.3 are arranged on both sides of the pressed surfaces of the rear end 1.7.1 of the front shock absorber tower support rod and the front end 1.7.2 of the front shock absorber tower support rod; the first mounting holes 1.7.4, The second mounting hole 1.7.5 and the third mounting hole 1.7.6, the front enclosure assembly 1.1 is also respectively provided with a pair of front shock absorber tower support rod mounting brackets 1.1.1 corresponding to the positions of a pair of front shock absorber tower support rods 1.7, wherein welding nuts are arranged inside the brackets, which are connected to the front shock absorber tower support rods 1.7 by fastening bolts and the first mounting hole 1.7.4; the second mounting hole 1.7.5 is connected to the wire thread sleeve inside the upper surface 1.3.5 of the front shock absorber tower by bolts; the third mounting hole 1.7.6 is fixedly connected to the front end of the side support rod 1.8.

[0053] The cross-section of the side strut 1.8 is a "U"-shaped structure, and its material is a steel plate; the front end 1.8.1 of the side strut is overlapped below the front end 1.7.2 of the front shock absorber tower support rod, and the mounting hole of the front end 1.8.1 of the side strut is aligned with the third mounting hole 1.7.6 and fixedly connected by fastening bolts; the rear end 1.8.2 of the side strut is aligned with the side panel front pillar 1.10 and fixedly connected by fastening bolts; a weight reduction hole 1.8.3 is provided in the middle of the side strut 1.8.

[0054] The two ends of each front shock absorber tower support rod 1.7 are respectively connected to the front enclosure assembly 1.1 and the front shock absorber tower 1.3, and the two ends of each side support rod 1.8 are respectively connected to the side enclosure front pillar plate 1.10 and the front shock absorber tower support rod 1.7; the "V"-shaped tubular beam support structure formed by the front shock absorber tower support rod 1.7 and the side support rod 1.8 on both sides of the cabin forms a triangle area with the front enclosure assembly.

[0055] The water tank front plate 1.9 is connected to the water tank side connecting plates 1.6 on the left and right sides, and together with the front shock tower 1.3, the side wall front pillar plate 1.10, the front wheel cover rear fender 1.11 and the front wall assembly 1.1, forms a "concave"-shaped cavity structure with a bottom surface and closed surroundings.

[0056] Example 2

[0057] A car comprises a vehicle sheet metal and a reinforcement structure of a double-layer sealed front wall of the car. The reinforcement structure of the double-layer sealed front wall of the car is arranged at the front part of the vehicle sheet metal.

[0058] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A reinforced structure of a double-layer sealed front wall of an automobile, characterized in that: It comprises a front enclosure assembly (1.1), a front enclosure crossbeam assembly (1.2), a pair of front shock towers (1.3), a pair of front longitudinal beam assemblies (1.4), a pair of front wheel cover upper connecting beams (1.5), a pair of water tank side connecting plates (1.6), a pair of front shock tower support rods (1.7), a pair of side support rods (1.8), a water tank front plate (1.9), a pair of side enclosure front pillar plates (1.10) and a pair of front wheel cover rear fenders (1.11); The front enclosure assembly (1.1) is fixedly connected to the front enclosure crossbeam assembly (1.2); each of the front shock absorber towers (1.3) is fixedly connected to the corresponding front wheel cover rear fender (1.11), the front longitudinal beam assembly (1.4) and the front wheel cover upper connecting beam (1.5); the water tank front plate (1.9) is fixedly connected to the front enclosure crossbeam assembly (1.2) and a pair of water tank side connecting plates (1.6) on both sides in a detachable manner; each of the front The rear fender (1.11) of the wheel housing is respectively aligned with the front enclosure crossbeam assembly (1.2) and the water tank side connecting plate (1.6) and fixedly connected; the two ends of each front shock absorber tower support rod (1.7) are respectively aligned with the front enclosure assembly (1.1) and the front shock absorber tower (1.3) and are detachably fixedly connected; the two ends of each side support rod (1.8) are respectively aligned with a front shock absorber tower support rod (1.7) and a side enclosure front pillar plate (1.10) and are detachably fixedly connected.

2. The reinforced structure of the double-layer sealed front wall of an automobile according to claim 1, characterized in that: The lower part of the front enclosure assembly (1.1) is overlapped with the front enclosure crossbeam assembly (1.2) and fixedly connected by spot welding; the front end of the front enclosure crossbeam assembly (1.2) is provided with a welding stud (1.2.1) protruding forward, and the water tank front plate (1.9) is aligned and fixedly connected to the front enclosure crossbeam assembly (1.2) by screwing the welding stud (1.2.1); the upper part of the front enclosure crossbeam assembly (1.2) is provided with a water tank front plate connecting piece (1.2.2), and the overall cross section of the water tank front plate connecting piece (1.2.2) is "L" shaped, and is composed of a water tank front plate horizontal surface (1.2.2.1) and a water tank front plate vertical surface (1.2.2.2); wherein the water tank front plate horizontal surface (1.2.2.1) and the front enclosure crossbeam assembly (1.2) are connected by The front plate (1.2.2.2) and the front plate (1.9) are fixedly connected by spot welding, and the vertical surface (1.2.2.2) of the water tank is overlapped with the front plate (1.9); the end surfaces at both ends of the upper surface of the front wall cross beam assembly (1.2) are respectively connected to the upper horizontal surfaces (1.11.1) of the two front wheel housing rear fenders (1.11) by spot welding; the end surface at the middle position of the upper surface of the front wall cross beam assembly (1.2) is connected to the horizontal surface (1.2.2.1) of the front plate connecting piece (1.2.2) of the water tank by spot welding; the rear fender (1.11) of the front wheel housing is in an "L" shape as a whole, and the lower vertical surface (1.11.2) of the front wheel housing rear fender (1.11) and the vertical surface (1.2.2.2) of the water tank are respectively overlapped with the front plate (1.9) by alignment.

3. The reinforced structure of the double-layer sealed front wall of an automobile according to claim 2, characterized in that: Each of the front shock absorber towers (1.3) is made of vacuum high-pressure cast aluminum. The lower surface (1.3.1) of the front shock absorber tower is fixedly connected to the front longitudinal beam assembly (1.4) by riveting, and a structural adhesive is arranged between the two. The upper area (1.3.2) of the front shock absorber tower is fixedly connected to the upper connecting beam (1.5) of the front wheel cover by riveting, and a structural adhesive is arranged between the two. The rear end surface (1.3.3) of the front shock absorber tower is fixedly connected to the rear fender (1.11) of the front wheel cover by riveting. The front shock absorber tower (1.3.4) and the water tank side connecting plate (1.6) are fixedly connected by riveting, and structural glue is arranged between the two. A U-shaped notch is arranged in the middle of the overlap area between the lower part of the front shock absorber tower (1.3) and the front longitudinal beam assembly (1.4). A wire screw sleeve is arranged inside the upper surface (1.3.5) of the front shock absorber tower. The front shock absorber tower (1.3) is provided with an "L"-shaped reinforcing rib (1.3.6) that passes through the upper surface and the side.

4. The reinforced structure of the double-layer sealed front wall of an automobile according to claim 3, characterized in that: Each of the water tank side connecting plates (1.6) is an L-shaped structure as a whole. A welding nut (1.6.2) is provided on the water tank side connecting plate (1.6) at a position of a water tank side edge (1.6.1) close to the front enclosure assembly (1.1). The water tank front plate (1.9) is aligned and connected and fixed to the water tank side connecting plate (1.6) through the welding nut (1.6.2); the water tank side connecting plate (1.6) is connected to the front shock absorber tower (1.3) by riveting at an edge (1.6.3) adjacent to the front shock absorber tower (1.3); the lower edge (1.6.4) of the water tank side connecting plate (1.6) is spot welded to the rear fender (1.11) of the front wheel housing. connection; the upper edge (1.6.5) of the sink side connection plate (1.6) and the upper end surface of the sink front plate (1.9) are in the same plane; the left end surface (1.9.1) of the sink front plate, the lower end surface (1.9.2) of the sink front plate and the right end surface (1.9.3) of the sink front plate are circumferentially provided with a "U"-shaped sealing strip (1.9.4); a pair of limit folding edges (1.9.5) are symmetrically provided on the lower end surface (1.9.2) of the sink front plate, and main and auxiliary positioning holes are provided on them; the left end surface (1.9.1) of the sink front plate and the right end surface (1.9.3) of the sink front plate are respectively provided with mounting holes corresponding to the welding nuts (1.6.2).

5. The reinforced structure of the double-layer sealed front wall of an automobile according to claim 4, characterized in that: Each of the front shock tower support rods (1.7) is arranged between the front shock tower (1.3) and the front enclosure assembly (1.1); the rear end (1.7.1) of the front shock tower support rod is aligned and connected to the front enclosure assembly (1.1); the front end (1.7.2) of the front shock tower support rod is aligned and connected to the front shock tower (1.3); each of the side support rods (1.8) is arranged between the water tank side connecting plate (1.6) and the side enclosure front pillar plate (1.10); the front end (1.8.1) of the side support rod is aligned and connected to the front of the front shock tower support rod (1.7); and the rear end (1.8.2) of the side support rod is connected to the side enclosure front pillar plate (1.10).

6. The reinforced structure of the double-layer sealed front wall of an automobile according to claim 5, characterized in that: The front shock absorber tower support rod (1.7) is an extruded cylindrical hollow aluminum tube structure as a whole, and the two ends of the cylindrical hollow aluminum tube structure are pressed together to form a front shock absorber tower support rod rear end (1.7.1) and a front shock absorber tower support rod front end (1.7.2); raised ribs (1.7.3) are provided on both sides of the pressed surfaces of the front shock absorber tower support rod rear end (1.7.1) and the front shock absorber tower support rod front end (1.7.2); a first mounting hole (1.7.4), a second mounting hole (1.7.5) and a second mounting hole (1.7.6) are provided on the pressed surfaces of the front shock absorber tower support rod rear end (1.7.1) and the front shock absorber tower support rod front end (1.7.2). The front enclosure assembly (1.1) is provided with a pair of front shock tower support rod mounting brackets (1.1.1) at positions corresponding to the pair of front shock tower support rods (1.7), wherein welding nuts are arranged inside the brackets and connected to the front shock tower support rods (1.7) via fastening bolts and the first mounting holes (1.7.4); the second mounting holes (1.7.5) are connected to the wire screw sleeve inside the upper surface (1.3.5) of the front shock tower via bolts; and the third mounting holes (1.7.6) are fixedly connected to the front end of the side support rod (1.8).

7. The reinforced structure of the double-layer sealed front wall of an automobile according to claim 6, characterized in that: The side support rod (1.8) has a "U"-shaped cross-section and is made of a steel plate. The front end (1.8.1) of the side support rod overlaps below the front end (1.7.2) of the front shock tower support rod, and the mounting hole of the front end (1.8.1) of the side support rod is aligned with the third mounting hole (1.7.6) and is fixedly connected by fastening bolts. The rear end (1.8.2) of the side support rod is aligned with the side enclosure front pillar plate (1.10) and is fixedly connected by fastening bolts. A weight reduction hole (1.8.3) is provided in the middle of the side support rod (1.8).

8. The reinforced structure of the double-layer sealed front wall of an automobile according to claim 7, characterized in that: The two ends of each front shock tower support rod (1.7) are respectively connected to the front enclosure assembly (1.1) and the front shock tower (1.3), and the two ends of each side support rod (1.8) are respectively connected to the side enclosure front pillar plate (1.10) and the front shock tower support rod (1.7); the "V"-shaped tube beam support structure formed by the front shock tower support rod (1.7) and the side support rod (1.8) on both sides of the cabin forms a triangular area with the front enclosure assembly.

9. The reinforced structure of the double-layer sealed front wall of an automobile according to claim 8, characterized in that: The water tank front plate (1.9) is connected to the water tank side connecting plates (1.6) on the left and right sides, and together with the front shock tower (1.3), the side wall front pillar plate (1.10), the front wheel cover rear fender (1.11) and the front wall assembly (1.1) form a "concave"-shaped cavity structure with a bottom surface and closed surroundings.

10. An automobile, comprising a vehicle sheet metal, characterized in that: It also includes a reinforcement structure for a double-layer sealed front enclosure of an automobile as described in any one of claims 1 to 9, wherein the reinforcement structure for a double-layer sealed front enclosure of an automobile is arranged at the front part of the vehicle sheet metal.

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