A reinforced structure for a double-layer sealed front bulkhead of an automobile and an automobile

Abstract

This invention discloses a reinforced structure for a double-layer sealed front bulkhead of an automobile and the automobile itself. The front bulkhead assembly is aligned and fixedly connected to the front bulkhead crossbeam assembly. Each front shock absorber tower is respectively fixedly connected to the rear fender of the front wheel arch, the front longitudinal beam assembly, and the connecting beam on the front wheel arch. The water tank front plate is respectively aligned and detachably fixedly connected to the front bulkhead crossbeam assembly and a pair of water tank side connecting plates on both sides. Each rear fender of the front wheel arch is respectively aligned and fixedly connected to the front bulkhead crossbeam assembly and the water tank side connecting plate. The two ends of each front shock absorber tower support rod are respectively aligned and detachably fixedly connected to the front bulkhead assembly and the front shock absorber tower. The two ends of each side strut are respectively aligned and detachably fixedly connected to a front shock absorber tower support rod and a side front pillar plate. This invention can achieve a reinforced structure, which can improve the NVH performance, safety performance, and rigidity of the automobile, and meet the requirements of lightweighting the front engine compartment while reducing production costs.

Description

Technical Field

[0001] This invention relates to the field of vehicle body structure technology, and in particular to a reinforced structure for a double-layer sealed front fascia of an automobile and the automobile thereof. Background Technology

[0002] The front bulkhead of a car is located between the driver's compartment and the engine compartment, and serves to insulate heat, transmit force, and protect the passenger compartment space. However, in related technologies, the rigidity and strength of the front bulkhead of a car are generally low, and it is easily excited by the car's powertrain, causing resonance and thus producing a roaring sound inside the car.

[0003] To address this, some cars add a layer of metal structure to form a "double-layer sealed wall" with the front bulkhead to strengthen the connection between the engine compartment and the passenger compartment; however, this structure is usually unable to be effectively strengthened due to space and other structural limitations, resulting in low strength and insufficient rigidity of the front bulkhead. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides a reinforced structure for a double-layer sealed front bulkhead of an automobile. This structure enables reinforcement, improving the vehicle's NVH (Noise, Vibration, Harshness) performance, safety performance, and rigidity, while simultaneously reducing production costs and achieving lightweighting of the vehicle's front engine compartment.

[0005] This invention proposes a reinforced structure for a double-layer sealed front bulkhead of an automobile, including a front bulkhead assembly, a front bulkhead crossbeam assembly, a pair of front shock absorber towers, a pair of front longitudinal beam assemblies, a pair of front wheel arch upper connecting beams, a pair of water tank side connecting plates, a pair of front shock absorber tower support rods, a pair of side struts, a water tank front plate, a pair of side bulkhead front pillar plates, and a pair of front wheel arch rear mudguards.

[0006] The front bulkhead assembly is aligned and fixedly connected to the front bulkhead crossbeam assembly; each front shock absorber tower is respectively fixedly connected to the aligned front wheel arch rear mudguard, front longitudinal beam assembly, and front wheel arch upper connecting beam; the water tank front plate is respectively aligned and detachably fixedly connected to the front bulkhead crossbeam assembly and a pair of water tank side connecting plates on both sides; each front wheel arch rear mudguard is respectively aligned and fixedly connected to the front bulkhead crossbeam assembly and water tank side connecting plate; both ends of each front shock absorber tower support rod are respectively aligned and detachably fixedly connected to the front bulkhead assembly and the front shock absorber tower; both ends of each side strut are respectively aligned and detachably fixedly connected to a front shock absorber tower support rod and a side bulkhead front pillar plate.

[0007] The lower part of the front bulkhead assembly overlaps with the front bulkhead crossbeam assembly and is fixedly connected by spot welding. A welding stud protrudes forward from the front end of the front bulkhead crossbeam assembly, and the water tank front panel is aligned and fixed to the front bulkhead crossbeam assembly by the welding stud. A water tank front panel connector is provided on the upper part of the front bulkhead crossbeam assembly. The overall cross-section of the water tank front panel connector is "L"-shaped, formed by the horizontal plane and vertical plane of the water tank front panel. The horizontal plane of the water tank front panel is connected to the front bulkhead crossbeam assembly by spot welding. The front panel is fixedly connected by welding, with the vertical surface of the front panel overlapping the front panel of the water tank. The two end faces of the upper surface of the front beam assembly are respectively connected to the upper horizontal surfaces of the two front wheel arch rear mudguards by spot welding. The middle end face of the upper surface of the front beam assembly is connected to the horizontal surface of the front panel of the water tank by spot welding. The rear mudguard of the front wheel arch is generally L-shaped, with the lower vertical surface of the rear mudguard of the front wheel arch and the vertical surface of the front panel of the water tank respectively aligned and overlapping with the front panel of the water tank.

[0008] Each of the aforementioned 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 structural adhesive is applied between the two to ensure connection strength. The upper area of ​​the front shock absorber tower is fixedly connected to the connecting beam on the front wheel arch by riveting, and structural adhesive is applied between the two to ensure connection strength. The rear end face of the front shock absorber tower is fixedly connected to the rear fender of the front wheel arch by riveting, and structural adhesive is applied between the two to ensure connection strength. The inner end face of the front shock absorber tower is... The side connecting plates of the water tank are fixedly connected by riveting, and structural adhesive is applied between them to ensure the connection strength. A U-shaped notch is provided in the middle of the overlap 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 steel wire thread sleeve is provided inside the upper surface of the front shock absorber tower for fixing and connecting the front shock absorber tower support rod. An "L"-shaped reinforcing rib is provided on the front shock absorber tower, running through the upper surface and the side to enhance the overall strength of the parts.

[0009] Each of the aforementioned water tank side connecting plates is an L-shaped structure. Welded nuts are installed on the water tank side edge of the connecting plate near the front bulkhead assembly. The water tank front plate is aligned and fixed to the water tank side connecting plate via these welded nuts. The edge of the water tank side connecting plate adjacent to the front shock absorber tower is riveted to the tower. The lower edge of the water tank side connecting plate is spot-welded to the rear mudguard of the front wheel arch. The upper edge of the water tank side connecting plate is flush with the upper surface of the water tank front plate to ensure a sealing overlap with the water tank cover. "U"-shaped sealing strips are circumferentially provided on the left, lower, and right ends of the water tank front plate to ensure connection between the water tank front plate and the water tank side plates on both sides. After the front panel and water tank panel connectors overlap, the metal parts can be effectively sealed to prevent gas and water from flowing into the passenger compartment from the front engine compartment. A pair of limiting flanges are symmetrically arranged on the lower end face of the water tank panel, with main and auxiliary positioning holes on them. The left and right end faces of the water tank panel are respectively provided with mounting holes for corresponding welding nuts. During installation, the main and auxiliary positioning holes on the pair of limiting flanges are first pre-hung on the welding studs of the front beam assembly to ensure that the water tank panel is stable in the correct installation position and facilitates the operation of the workers. Then, the mounting holes on the left and right end faces of the water tank panel are aligned with the welding nuts on the water tank side connecting plate, and the fastening bolts are installed.

[0010] Each of the aforementioned front shock absorber tower support rods is disposed between the front shock absorber tower and the front bulkhead assembly, with the rear end of the front shock absorber tower support rod aligned and connected to the front bulkhead assembly, and the front end of the front shock absorber tower support rod aligned and connected to the front shock absorber tower; each of the aforementioned side struts is disposed between the water tank side connecting plate and the side bulkhead front pillar plate, with the front end of the side strut aligned and connected to the front part of the front shock absorber tower support rod, and the rear end of the side strut connected to the side bulkhead front pillar plate.

[0011] The front shock absorber tower support rod is an extruded cylindrical hollow aluminum tube structure. To achieve lightweight requirements, the two ends of the cylindrical hollow aluminum tube structure are pressed together to form the rear and front ends of the front shock absorber tower support rod, meeting connection requirements. The pressed-together mounting surfaces at both ends of the cylindrical hollow aluminum tube structure can effectively prevent torque attenuation of the fastening bolts and increase connection reliability. Raised ribs are provided on both sides of the pressing surfaces at the rear and front ends of the front shock absorber tower support rod to enhance the strength of the parts. A first mounting hole and a second mounting hole are respectively provided on the pressing surfaces at the rear and front ends of the front shock absorber tower support rod. The front bulkhead assembly also has a pair of front shock absorber support rod mounting brackets corresponding to the positions of the front shock absorber support rods. These brackets have welded nuts inside and are connected to the front shock absorber support rods via fastening bolts and the first mounting hole. The second mounting hole is connected to the wire threaded sleeve inside the upper surface of the front shock absorber via bolts. The third mounting hole is fixedly connected to the front end of the side strut. The front shock absorber is designed as a vacuum high-pressure cast aluminum part, the front shock absorber support rod is designed as an extruded aluminum tube, and other parts are designed as steel parts, together forming a steel-aluminum hybrid reinforced structure in the front engine compartment. This effectively reduces the overall vehicle weight and ensures the overall vehicle rigidity.

[0012] The side strut has a U-shaped cross-section and is made of steel plate, which increases the overall rigidity and strength. The front end of the side strut overlaps below the front end of the front shock absorber tower support rod, and the front mounting hole of the side strut is aligned with the third mounting hole and fixedly connected by fastening bolts. The rear end of the side strut is aligned and fixedly connected to the front column plate of the side wall by fastening bolts. The side strut has a weight reduction hole in the middle to improve the lightweight level.

[0013] Each front shock absorber tower support rod connects to the front bulkhead assembly and the front shock absorber tower at both ends, and each side strut connects to the side front pillar plate and the front shock absorber tower support rod at both ends. The "V"-shaped tubular beam support structure formed by the front shock absorber tower support rod and the side struts on both sides of the engine compartment, together with the front bulkhead assembly, forms a triangular area, which can effectively enhance the overall rigidity of the front section of the engine compartment, improve the overall stability of the engine compartment, and enhance the NVH performance of the whole vehicle; at the same time, it reduces the intrusion of the front bulkhead during a collision, improving collision performance and the load-bearing capacity of the engine compartment.

[0014] The front panel of the water tank is connected to the side connecting plates of the water tank on the left and right sides, and together with the front shock absorber tower, the front pillar plate of the side wall, the rear mudguard of the front wheel arch, and the front wall assembly, it forms a "U"-shaped cavity structure with the bottom and the four sides closed. This can effectively reduce the noise and gas generated by the engine, transmission, etc. in the front engine compartment to the passenger compartment, and improve the NVH performance of the whole vehicle.

[0015] An automobile includes a vehicle sheet metal and a reinforcing structure for a double-sealed front fascia, the reinforcing structure being disposed at the front of the vehicle sheet metal.

[0016] Beneficial effects

[0017] This invention enables a reinforced structure, which can improve the NVH performance, safety performance and rigidity of automobiles, and reduce production costs while achieving lightweighting of the front engine compartment. Attached Figure Description

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

[0019] Figure 2 This is an enlarged structural schematic diagram of the front crossbeam assembly of the present invention.

[0020] Figure 3 This is an enlarged structural schematic diagram of the front panel connector of the water tank of the present invention.

[0021] Figure 4 This is a partially enlarged structural diagram of the present invention. Figure 1 .

[0022] Figure 5 This is an enlarged structural schematic diagram of the front shock absorber tower of the present invention.

[0023] Figure 6 This is an enlarged structural schematic diagram of the water tank side connecting plate of the present invention.

[0024] Figure 7 This is a partially enlarged structural diagram of the present invention. Figure 2 .

[0025] Figure 8 This is an enlarged schematic diagram of the front shock absorber tower support rod of the present invention.

[0026] Figure 9 This is an enlarged schematic diagram of the side support rod structure of the present invention.

[0027] Figure 10 This is a schematic diagram of the "V"-shaped tube beam support structure and the "U"-shaped cavity structure of the present invention.

[0028] Figure 11 This is an enlarged structural schematic diagram of the mounting bracket for the front shock absorber tower support rod of the present invention.

[0029] Figure 12 This is a schematic diagram of the connection structure between the side connecting plate and the front plate of the water tank in this invention.

[0030] In the picture:

[0031] 1.1 Front bulkhead assembly; 1.1.1 Front shock absorber tower support rod mounting bracket;

[0032] 1.2 Front beam assembly; 1.2.1 Welded studs; 1.2.2 Water tank front panel connector; 1.2.2.1 Horizontal surface of water tank front panel; 1.2.2.2 Vertical surface of water tank front panel;

[0033] 1.3 Front damper tower; 1.3.1 Lower surface of the front damper tower; 1.3.2 Upper area of ​​the front damper tower; 1.3.3 Rear end face of the front damper tower; 1.3.4 Inner end face of the front damper tower; 1.3.5 Upper surface of the front damper tower; 1.3.6 “L” shaped reinforcing rib;

[0034] 1.4 Front longitudinal beam assembly;

[0035] 1.5. Connecting beam on the front wheel arch;

[0036] 1.6 Water tank side connecting plate; 1.6.1 Water tank side edge; 1.6.2 Welded nut; 1.6.3 Edge adjacent to the front shock absorber tower; 1.6.4 Lower edge; 1.6.5 Upper edge;

[0037] 1.7 Front shock absorber tower support rod; 1.7.1 Rear end of front shock absorber tower support rod; 1.7.2 Front end of front shock absorber tower support rod; 1.7.3 Protruding 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. Front panel of the sink; 1.9.1. Left end face of the front panel of the sink; 1.9.2. Lower end face of the front panel of the sink; 1.9.3. Right end face of the front panel of the sink; 1.9.4. "U" shaped sealing strip; 1.9.5. Limiting fold;

[0040] 1.10. Side panel front pillars;

[0041] 1.11, Front wheel arch and rear mudguard; 1.11.1, Upper horizontal plane; 1.11.2, Lower vertical plane. Detailed Implementation

[0042] To make the technical problems solved by this invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of this invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to this invention are shown in the accompanying drawings, not all of them.

[0043] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0045] Example 1

[0046] See Figures 1-12 As shown, a reinforced structure for a double-layer sealed front bulkhead of an automobile includes a bulkhead assembly 1.1, a front bulkhead crossbeam assembly 1.2, a pair of front shock absorber towers 1.3, a pair of front longitudinal beam assemblies 1.4, a pair of front wheel arch upper connecting beams 1.5, a pair of water tank side connecting plates 1.6, a pair of front shock absorber tower support rods 1.7, a pair of side struts 1.8, a water tank front plate 1.9, a pair of side front pillar plates 1.10, and a pair of front wheel arch rear mudguards 1.11.

[0047] The front bulkhead assembly 1.1 is aligned and fixedly connected to the front bulkhead crossbeam assembly 1.2; each front shock absorber tower 1.3 is respectively fixedly connected to the aligned front wheel arch rear mudguard 1.11, front longitudinal beam assembly 1.4, and front wheel arch upper connecting beam 1.5; the water tank front plate 1.9 is respectively aligned and detachably fixedly connected to the front bulkhead crossbeam assembly 1.2 and a pair of water tank side connecting plates 1.6 on both sides; each front wheel arch rear mudguard 1.11 is respectively aligned and fixedly connected to the front bulkhead crossbeam assembly 1.2 and water tank side connecting plate 1.6; both ends of each front shock absorber tower support rod 1.7 are respectively aligned and detachably fixedly connected to the front bulkhead assembly 1.1 and front shock absorber tower 1.3; both ends of each side strut 1.8 are respectively aligned and detachably fixedly connected to a front shock absorber tower support rod 1.7 and a side bulkhead front pillar plate 1.10.

[0048] The lower part of the front bulkhead assembly 1.1 overlaps with the front bulkhead crossbeam assembly 1.2 and is fixedly connected by spot welding. The front end of the front bulkhead crossbeam assembly 1.2 has a welded stud 1.2.1 protruding forward. The water tank front plate 1.9 is aligned and fixed to the front bulkhead crossbeam assembly 1.2 by the welded stud 1.2.1. The upper part of the front bulkhead crossbeam assembly 1.2 has a water tank front plate connector 1.2.2. The overall cross-section of the water tank front plate connector 1.2.2 is "L"-shaped, formed by the horizontal surface 1.2.2.1 and the vertical surface 1.2.2.2 of the water tank front plate. The horizontal surface 1.2.2.1 of the water tank front plate is connected to the front bulkhead crossbeam assembly 1.2 by spot welding. The front panel of the water tank is fixedly connected by welding. The vertical surface 1.2.2.2 of the front panel overlaps with the front panel 1.9. The two end faces of the upper surface of the front beam assembly 1.2 are respectively connected to the upper horizontal surface 1.11.1 of the two front wheel arch rear mudguards 1.11 by spot welding. The middle end face of the upper surface of the front beam assembly 1.2 is connected to the horizontal surface 1.2.2.1 of the front panel of the water tank of the front panel connector 1.2.2 by spot welding. The rear mudguard 1.11 of the front wheel arch is generally L-shaped. The lower vertical surface 1.11.2 of the rear mudguard 1.11 and the vertical surface 1.2.2.2 of the front panel overlap with the front panel 1.9.

[0049] Each of the aforementioned 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 adhesive is applied between the two. The upper area 1.3.2 of the front shock absorber tower is fixedly connected to the connecting beam 1.5 on the front wheel arch by riveting, and structural adhesive is applied between the two. The rear end face 1.3.3 of the front shock absorber tower is fixedly connected to the rear mudguard 1.11 of the front wheel arch by riveting, and structural adhesive is applied between the two. The inner end face 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 adhesive is applied between the two. A U-shaped notch is provided 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 steel wire thread sleeve is provided inside the upper surface 1.3.5 of the front shock absorber tower. An "L"-shaped reinforcing rib 1.3.6 is provided on the front shock absorber tower 1.3, penetrating the upper surface and the side.

[0050] Each of the water tank side connecting plates 1.6 is generally L-shaped. The water tank side connecting plate 1.6 is provided with a welding nut 1.6.2 at the water tank side edge 1.6.1 near the front bulkhead assembly 1.1. The water tank front plate 1.9 is aligned and fixed to the water tank side connecting plate 1.6 by the welding nut 1.6.2. The water tank side connecting plate 1.6 is riveted to the front shock absorber tower 1.3 at the 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 mudguard 1.11 of the front wheel arch. The upper edge 1.6.5 of the side connecting plate 1.6 of the water tank is on the same plane as the upper end face of the front plate 1.9 of the water tank; the left end face 1.9.1, the lower end face 1.9.2 and the right end face 1.9.3 of the front plate of the water tank are provided with "U"-shaped sealing strips 1.9.4 around the perimeter; a pair of limiting flanges 1.9.5 are symmetrically provided on the lower end face 1.9.2 of the front plate of the water tank, and main and auxiliary positioning holes are provided on them; the left end face 1.9.1 and the right end face 1.9.3 of the front plate of the water tank are respectively provided with mounting holes for the corresponding welding nuts 1.6.2.

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

[0052] The front damper tower support rod 1.7 is an extruded cylindrical hollow aluminum tube structure. The two ends of the cylindrical hollow aluminum tube structure are pressed together to form the rear end 1.7.1 and the front end 1.7.2 of the front damper tower support rod. Raised ribs 1.7.3 are provided on both sides of the pressing surfaces of the rear end 1.7.1 and the front end 1.7.2 of the front damper tower support rod. First mounting holes 1.7.4 are respectively provided on the pressing surfaces of the rear end 1.7.1 and the front end 1.7.2 of the front damper tower support rod. The front assembly 1.1 has a second mounting hole 1.7.5 and a third mounting hole 1.7.6. A pair of front shock absorber support rod mounting brackets 1.1.1 are also provided at the positions of a pair of front shock absorber support rods 1.7. The brackets are equipped with welded nuts and are connected to the front shock absorber support rods 1.7 through fastening bolts and the first mounting hole 1.7.4. The second mounting hole 1.7.5 is connected to the wire threaded sleeve inside the upper surface 1.3.5 of the front shock absorber through bolts. The third mounting hole 1.7.6 is fixedly connected to the front end of the side support rod 1.8.

[0053] The side support rod 1.8 has a U-shaped cross-section and is made of 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 absorber tower support rod. 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 fixedly connected by fastening bolts. The rear end 1.8.2 of the side support rod is aligned with and fixedly connected to the front side column plate 1.10 by fastening bolts. A weight reduction hole 1.8.3 is provided in the middle of the side support rod 1.8.

[0054] Each front shock absorber tower support rod 1.7 is connected to the front bulkhead assembly 1.1 and the front shock absorber tower 1.3 at both ends, and each side strut 1.8 is connected to the side bulkhead front pillar plate 1.10 and the front shock absorber tower support rod 1.7 at both ends. The "V"-shaped tubular beam support structure formed by the front shock absorber tower support rod 1.7 and the side strut 1.8 on both sides of the nacelle, together with the front bulkhead assembly, forms a triangular area.

[0055] The front panel 1.9 of the water tank is connected to the side connecting plates 1.6 of the water tank on the left and right sides, and together with the front shock absorber tower 1.3, the side front pillar plate 1.10, the front wheel arch rear mudguard 1.11 and the front assembly 1.1, they form a "U"-shaped cavity structure with the bottom surface and the four sides closed.

[0056] Example 2

[0057] An automobile includes a vehicle sheet metal and a reinforcing structure for a double-sealed front fascia, the reinforcing structure being disposed at the front of the vehicle sheet metal.

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

Claims

1. A reinforcing structure for a double-layer sealed front bulkhead of an automobile, characterized in that: It includes a front bulkhead assembly (1.1), a front bulkhead crossbeam assembly (1.2), a pair of front shock absorber towers (1.3), a pair of front longitudinal beam assemblies (1.4), a pair of front wheel arch upper connecting beams (1.5), a pair of water tank side connecting plates (1.6), a pair of front shock absorber tower support rods (1.7), a pair of side struts (1.8), a water tank front plate (1.9), a pair of side front pillar plates (1.10), and a pair of front wheel arch rear mudguards (1.11). The front bulkhead assembly (1.1) and the front bulkhead crossbeam assembly (1.2) are aligned and fixedly connected; each of the front shock absorber towers (1.3) is respectively fixedly connected to the aligned front wheel arch rear fender (1.11), the front longitudinal beam assembly (1.4), and the front wheel arch upper connecting beam (1.5); the water tank front plate (1.9) is respectively aligned and detachably fixedly connected to the front bulkhead crossbeam assembly (1.2) and a pair of water tank side connecting plates (1.6) on both sides; each of the front... The rear fender (1.11) of the wheel arch is respectively aligned and fixedly connected to the front beam assembly (1.2) and the water tank side connecting plate (1.6); the two ends of each of the front shock absorber tower support rods (1.7) are respectively aligned and detachably fixedly connected to the front assembly (1.1) and the front shock absorber tower (1.3); the two ends of each of the side struts (1.8) are respectively aligned and detachably fixedly connected to a front shock absorber tower support rod (1.7) and a side front pillar plate (1.10); The front panel (1.9) of the water tank is connected to the side connecting plates (1.6) of the water tank on the left and right sides, and together with the front shock absorber tower (1.3), the side front pillar plate (1.10), the front wheel arch rear mudguard (1.11) and the front assembly (1.1) form a "U" shaped cavity structure with the bottom surface and the four sides closed.

2. The reinforcing structure of a double-layer sealed front bulkhead for automobiles according to claim 1, characterized in that: The lower part of the front bulkhead assembly (1.1) overlaps with the front bulkhead crossbeam assembly (1.2) and is fixedly connected by spot welding; the front end of the front bulkhead 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 fixed to the front bulkhead crossbeam assembly (1.2) by the welding stud (1.2.1); the upper part of the front bulkhead crossbeam assembly (1.2) is provided with a water tank front plate connector (1.2.2), the overall cross section of the water tank front plate connector (1.2.2) is "L" shaped, and is composed of the horizontal surface (1.2.2.1) and the vertical surface (1.2.2.2) of the water tank front plate; wherein the horizontal surface (1.2.2.1) of the water tank front plate and the front bulkhead crossbeam assembly (1.2) are connected by spot welding. The front panel of the water tank is fixedly connected by spot welding. The vertical surface (1.2.2.2) of the front panel overlaps with the front panel of the water tank (1.9). The two end faces of the upper surface of the front beam assembly (1.2) are respectively connected to the upper horizontal surface (1.11.1) of the two front wheel arch rear mudguards (1.11) by spot welding. The middle end face of the upper surface of the front beam assembly (1.2) is connected to the horizontal surface (1.2.2.1) of the front panel of the water tank of the front panel connector (1.2.2) by spot welding. The front wheel arch rear mudguard (1.11) is generally "L" shaped. The lower vertical surface (1.11.2) of the front wheel arch rear mudguard (1.11) and the vertical surface (1.2.2.2) of the front panel of the water tank are respectively aligned and overlapped with the front panel of the water tank (1.9).

3. The reinforcing structure of a double-layer sealed front bulkhead for automobiles according to claim 2, characterized in that: Each of the aforementioned 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 adhesive is applied between the two. The upper area (1.3.2) of the front shock absorber tower is fixedly connected to the connecting beam (1.5) on the front wheel arch by riveting, and structural adhesive is applied between the two. The rear end face (1.3.3) of the front shock absorber tower is fixedly connected to the rear mudguard (1.11) of the front wheel arch 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 adhesive is placed between them; a U-shaped notch is provided 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 steel wire thread sleeve is provided inside the upper surface (1.3.5) of the front shock absorber tower; and an "L"-shaped reinforcing rib (1.3.6) is provided on the front shock absorber tower (1.3) that runs through the upper surface and the side.

4. The reinforcing structure of a double-layer sealed front bulkhead for automobiles according to claim 3, characterized in that: Each of the aforementioned water tank side connecting plates (1.6) is an L-shaped structure. A welding nut (1.6.2) is provided on the water tank side edge (1.6.1) of the water tank side connecting plate (1.6) near the front bulkhead assembly (1.1). The water tank front plate (1.9) is aligned and fixed to the water tank side connecting plate (1.6) via the welding nut (1.6.2). The water tank side connecting plate (1.6) is riveted to the front shock absorber tower (1.3) near its adjacent front shock absorber tower edge (1.6.3). The lower edge (1.6.4) of the water tank side connecting plate (1.6) is spot-welded to the rear mudguard (1.11) of the front wheel arch. Connection; the upper edge (1.6.5) of the side connecting plate (1.6) of the water tank is on the same plane as the upper end face of the front plate (1.9) of the water tank; a "U"-shaped sealing strip (1.9.4) is provided circumferentially on the left end face (1.9.1), the lower end face (1.9.2) and the right end face (1.9.3) of the front plate of the water tank; a pair of limiting flanges (1.9.5) are symmetrically provided on the lower end face (1.9.2) of the front plate of the water tank, and main and auxiliary positioning holes are provided on them; corresponding welding nut (1.6.2) mounting holes are provided on the left end face (1.9.1) and the right end face (1.9.3) of the front plate of the water tank.

5. The reinforcing structure of a double-layer sealed front bulkhead for automobiles according to claim 4, characterized in that: Each of the aforementioned front shock absorber tower support rods (1.7) is disposed between the front shock absorber tower (1.3) and the front bulkhead assembly (1.1), with the rear end (1.7.1) of the front shock absorber tower support rod aligned and connected to the front bulkhead assembly (1.1) and the front end (1.7.2) of the front shock absorber tower support rod aligned and connected to the front shock absorber tower (1.3); each of the aforementioned side struts (1.8) is disposed between the water tank side connecting plate (1.6) and the side bulkhead front column plate (1.10), with the front end (1.8.1) of the side strut aligned 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 strut connected to the side bulkhead front column plate (1.10).

6. The reinforcing structure of a double-layer sealed front bulkhead for automobiles according to claim 5, characterized in that: The front shock absorber tower support rod (1.7) is an integral extruded cylindrical hollow aluminum tube structure. The two ends of the cylindrical hollow aluminum tube structure are pressed together to form the rear end (1.7.1) and front end (1.7.2) of the front shock absorber tower support rod. Raised ribs (1.7.3) are provided on both sides of the pressing surfaces of the rear end (1.7.1) and front end (1.7.2) of the front shock absorber tower support rod. A first mounting hole (1.7.4) and a second mounting hole (1.7.2) are respectively provided on the pressing surfaces of the rear end (1.7.1) and front end (1.7.2) of the front shock absorber tower support rod. Mounting holes (1.7.5) and third mounting holes (1.7.6) are provided on the front assembly (1.1) corresponding to a pair of front shock absorber tower support rods (1.7). A pair of front shock absorber tower support rod mounting brackets (1.1.1) are also provided on the front assembly (1.1) at the position of a pair of front shock absorber tower support rods (1.7). Welded nuts are provided inside the brackets and they are connected to the front shock absorber tower support rods (1.7) through fastening bolts and the first mounting hole (1.7.4). The second mounting hole (1.7.5) is connected to the wire threaded sleeve inside the upper surface (1.3.5) of the front shock absorber tower through bolts. The third mounting hole (1.7.6) is fixedly connected to the front end of the side support rod (1.8).

7. The reinforcing structure of a double-layer sealed front bulkhead for automobiles according to claim 6, characterized in that: The side support rod (1.8) has a "U" shaped cross-section and is made of 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 absorber tower support rod. 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 fixedly connected by fastening bolts. The rear end (1.8.2) of the side support rod is aligned with the front side column plate (1.10) and 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 reinforcing structure of a double-layer sealed front bulkhead for automobiles according to claim 7, characterized in that: Each front shock absorber tower support rod (1.7) is connected to the front bulkhead assembly (1.1) and the front shock absorber tower (1.3) at both ends, and each side strut (1.8) is connected to the side bulkhead front pillar plate (1.10) and the front shock absorber tower support rod (1.7) at both ends. The "V"-shaped tube beam support structure formed by the front shock absorber tower support rod (1.7) and the side strut (1.8) on both sides of the cabin, together with the front bulkhead assembly, forms a triangular area.

9. An automobile, comprising vehicle sheet metal, characterized in that: It also includes a reinforcing structure for a double-sealed front fascia of an automobile as described in any one of claims 1-8, the reinforcing structure for the double-sealed front fascia of the automobile being disposed at the front of the vehicle sheet metal.

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