Automobile engine compartment assembly structure and automobile

Abstract

The present invention discloses an engine compartment assembly structure for an automobile, which includes a front longitudinal beam assembly, a front baffle body, an upper cross beam of the front baffle, and a lower cross beam of the front baffle connected to the upper cross beam of the front baffle. The upper cross beam of the front baffle has a first contact surface and a second contact surface connected to the front baffle body. A first cavity penetrating along the length direction of the upper cross beam of the front baffle is formed at the connection between the first contact surface and the second contact surface and the front baffle body. The lower cross beam of the front baffle has a third contact surface connected to the upper cross beam of the front baffle and a fourth contact surface connected to the front baffle body. A second cavity penetrating along the length direction of the lower cross beam of the front baffle is formed at the connection between the third contact surface and the fourth contact surface and the front baffle body. The engine compartment assembly structure of the present invention realizes a through structure of double closed-section cross beams, improves the overall torsional stiffness and mode of the automobile body, and at the same time can also improve the anti-intrusion strength of collision safety. The present invention also discloses an automobile.

Description

Technical Field

[0001] The present invention belongs to the technical field of the front structure of an automobile body. Specifically, the present invention relates to a structure of an engine compartment assembly of an automobile and an automobile. Background Art

[0002] With the development of automobile technology, consumers' demands for the NVH and safety performance of automobiles are increasing day by day. Automobile safety has become a reference factor for consumers to purchase vehicles. Therefore, good safety performance can improve the purchase rate and selling price of the whole vehicle.

[0003] When an automobile is impacted frontally, the engine compartment structure of the vehicle body absorbs a certain amount of impact energy while reducing the movement degree of the vehicle occupants. At the same time, the engine compartment structure needs to be strong enough and have anti-deformation ability, which is very important for ensuring sufficient survival space for the occupants in the later stage of the collision process.

[0004] The engine compartment assembly of a load-bearing body-in-white is very important. The structure of the engine compartment assembly mainly serves as the installation carrier for the engine (or motor drive) system, the chassis suspension system, the transmission system, the radiator, etc., and bears various severe load effects. At the same time, it is the installation carrier for accessories such as water tanks, batteries, and fluid pots. The existing engine compartment assembly mainly consists of a headlight crossbeam, a radiator crossbeam, an outer panel of the front wheel housing, inner and outer panels of the left and right front longitudinal beams and reinforcing plates, a crash crossbeam, an energy-absorbing box, a front baffle assembly, and various small brackets. The engine compartment assembly needs to absorb collision energy at the front and ensure the transfer of the collision force value to the occupant compartment.

[0005] The front baffle assembly of the vehicle body, also called the firewall assembly, is the dividing surface between the occupant compartment and the engine compartment. At the same time, the front baffle assembly of the vehicle body is the connecting part that connects the engine compartment assembly, the floor assembly, and the sidewall assembly, and is the installation carrier for air-conditioning accessories, steering gear accessories, the front windshield, windshield wipers, foot pedals, and the middle instrument panel crossbeam. The existing front baffle assembly mainly consists of a front baffle body, a front baffle crossbeam, a steering column mounting bracket, inner and outer panels of the water chute, etc. The front baffle is very important for the torsional stiffness, mode, and collision energy transfer of the whole vehicle.

[0006] In the existing engine compartment assembly, the collision path design is unreasonable, and it cannot absorb more energy during the collision energy transfer process, which will cause greater harm to the passengers in the occupant compartment of the automobile. The anti-deformation ability of the longitudinal beam is poor, especially the connection stiffness between some parts is low, resulting in a low overall torsional stiffness and mode of the automobile body, and uncomfortable problems such as noise and vibration will occur. Summary of the Invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention provides a structure of an engine compartment assembly of an automobile, aiming to improve the anti-intrusion strength of collision safety and at the same time improve the overall torsional stiffness and mode of the automobile body.

[0008] To solve the above technical problems, the technical solution adopted by the present invention is: an engine compartment assembly structure of an automobile, including a front longitudinal beam assembly, a front baffle body connected to the front longitudinal beam assembly, a front baffle upper cross beam connected to the front longitudinal beam assembly, and a front baffle lower cross beam connected to the front baffle upper cross beam and located below the front baffle upper cross beam. The front baffle upper cross beam has a first contact surface and a second contact surface connected to the front baffle body. A first cavity is formed at the connection of the first contact surface and the second contact surface with the front baffle body and runs through along the length direction of the front baffle upper cross beam. The front baffle lower cross beam has a third contact surface and a fourth contact surface. A second cavity is formed at the connection of the third contact surface and the fourth contact surface with the front baffle body and runs through along the length direction of the front baffle lower cross beam.

[0009] The third contact surface is located below the second contact surface, and the first contact surface is located above the second contact surface.

[0010] The front baffle body includes an upper front baffle body and a lower front baffle body. The lower end of the upper front baffle body is connected to the upper end of the lower front baffle body. The lower end of the lower front baffle body is connected to the front baffle lower cross beam. The first contact surface is connected to the lower end of the upper front baffle body.

[0011] The lower front baffle body is a structure with an L-shaped cross section. The lower front baffle body includes a first baffle body and a second baffle body connected to each other. The first baffle body is connected to the lower end of the upper front baffle body and the second contact surface. The second baffle body is connected to the fourth contact surface. The first cavity is formed by the first baffle body and the front baffle upper cross beam surrounding it.

[0012] The front baffle lower cross beam includes an upper part of the front baffle lower cross beam body and a lower part of the front baffle lower cross beam body. The upper end of the upper part of the front baffle lower cross beam body is connected to the front baffle upper cross beam or the front baffle body. The lower end of the upper part of the front baffle lower cross beam body is connected to the lower part of the front baffle lower cross beam body. The lower part of the front baffle lower cross beam body is connected to the lower front baffle body. The second cavity is formed by the lower front baffle body, the upper part of the front baffle lower cross beam body, and the lower part of the front baffle lower cross beam body surrounding it.

[0013] The front longitudinal beam assembly includes a first front longitudinal beam support plate. The first front longitudinal beam support plate has a fifth contact surface and a sixth contact surface connected to the front baffle body. A third cavity is formed at the connection of the fifth contact surface and the sixth contact surface with the front baffle body and runs through along the length direction of the first front longitudinal beam support plate.

[0014] The front longitudinal beam assembly further includes a second front longitudinal beam support plate and a sill connection plate connected to the second front longitudinal beam support plate and the front baffle body. The second front longitudinal beam support plate is located below the first front longitudinal beam support plate. The front baffle body, the sill connection plate, and the second front longitudinal beam support plate enclose a fourth cavity that runs through in the length direction of the second front longitudinal beam support plate. The fourth cavity is located below the third cavity.

[0015] The front longitudinal beam assembly further includes a front baffle support plate. The front baffle support plate and the first front longitudinal beam support plate are located on opposite sides of the front baffle body. The front baffle support plate has a seventh contact surface and an eighth contact surface connected to the front baffle body. A fifth cavity that runs through in the length direction of the first front longitudinal beam support plate is formed at the connection of the seventh contact surface and the eighth contact surface with the front baffle body.

[0016] The front baffle support plate and the first front longitudinal beam support plate are connected to the second baffle body. The second front longitudinal beam support plate and the sill connection plate are connected to the second baffle body.

[0017] The front longitudinal beam assembly further includes a first front subframe rear mounting seat and a second front subframe rear mounting seat connected to the front baffle body. The front baffle body, the first front subframe rear mounting seat, and the second front subframe rear mounting seat enclose a sixth cavity. The first front subframe rear mounting seat and the second front subframe rear mounting seat are connected.

[0018] The first front longitudinal beam support plate, the second front longitudinal beam support plate, and the sill connection plate are connected to the first front subframe rear mounting seat. The first front longitudinal beam support plate, the second front longitudinal beam support plate, and the sill connection plate are located on the same side of the first front subframe rear mounting seat.

[0019] The front longitudinal beam assembly further includes a front subframe rear mounting seat reinforcement plate. The front subframe rear mounting seat reinforcement plate is located between the first front subframe rear mounting seat and the second front subframe rear mounting seat and is connected to the first front subframe rear mounting seat and the second front subframe rear mounting seat. The front subframe rear mounting seat reinforcement plate is located in the sixth cavity.

[0020] The front longitudinal beam assembly further includes a front longitudinal beam body and a front longitudinal beam cover plate connected to the front longitudinal beam body. The front longitudinal beam body is connected to the front baffle upper crossbeam, the front baffle body, the first front subframe rear mounting seat, and the second front subframe rear mounting seat. The front longitudinal beam cover plate is connected to the first front longitudinal beam support plate and the second front longitudinal beam support plate.

[0021] The described automobile engine compartment assembly structure further includes a front baffle longitudinal beam reinforcement plate, which has a ninth contact surface and a tenth contact surface connected to the front baffle body. A seventh cavity is formed at the connection between the ninth contact surface and the tenth contact surface and the front baffle body.

[0022] The described automobile engine compartment assembly structure includes multiple components, and the adjacent two components are connected by welding, riveting or bolting.

[0023] The components are metal plate-like parts, and the optimal solution is sheet metal parts formed by stamping with a steel plate stamping die.

[0024] Two front longitudinal beam assemblies are provided and the two front longitudinal beam assemblies are symmetrically arranged.

[0025] Mounting point structures and mounting point reinforcement structures are provided on the front longitudinal beam assembly and / or the front baffle body.

[0026] Reinforcing ribs are provided on the front longitudinal beam assembly and / or the front baffle body.

[0027] The upper cross beam of the front baffle is fixedly connected to the first front longitudinal beam support plate integrally. The upper cross beam of the front baffle and the first front longitudinal beam support plate are integrally formed, and the first cavity and the third cavity are communicated.

[0028] The first front subframe rear mounting seat and the second front subframe rear mounting seat are fixedly connected to form an integral body.

[0029] The present invention also provides an automobile, including the described automobile engine compartment assembly structure.

[0030] The automobile engine compartment assembly structure of the present invention realizes a double-closed cross-section beam penetration structure, improves the overall torsional stiffness and modal of the automobile body, and at the same time can also improve the anti-intrusion strength of collision safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the front structure of the engine compartment assembly;

[0032] Figure 2 It is a schematic diagram of the rear structure of the engine compartment assembly;

[0033] Figure 3 It is a schematic diagram of the A-A cross-section of the engine compartment assembly;

[0034] Figure 4 It is a schematic diagram of the B-B cross-section of the engine compartment assembly;

[0035] Figure 5 It is a schematic diagram of the C-C cross-section of the engine compartment assembly;

[0036] Figure 6 It is a schematic diagram of the structure of the left front longitudinal beam body;

[0037] Figure 7 It is a schematic diagram of the left front longitudinal beam cover plate structure;

[0038] Figure 8 It is a schematic diagram of the left mounting seat structure of the first front subframe;

[0039] Figure 9 It is a schematic diagram of the left mounting seat structure of the second front subframe;

[0040] Figure 10 It is a schematic diagram of the first front longitudinal beam support plate structure;

[0041] Figure 11 It is a schematic diagram of the second front longitudinal beam support plate structure;

[0042] Figure 12 It is a schematic diagram of the front baffle triangular beam connection bracket structure;

[0043] Figure 13 It is a schematic diagram of the sill connecting plate structure;

[0044] Figure 14 It is a schematic diagram of the left rear mounting seat reinforcement plate structure of the subframe;

[0045] Figure 15 It is a schematic diagram of the front longitudinal beam rear reinforcement plate structure;

[0046] Figure 16 It is a schematic diagram of the front longitudinal beam assembly structure;

[0047] Figure 17 It is a schematic diagram of the front longitudinal beam assembly structure;

[0048] Figure 18 It is a front view of the front longitudinal beam assembly;

[0049] Figure 19 It is a top view of the front longitudinal beam assembly;

[0050] Figure 20 It is a left view of the front longitudinal beam assembly;

[0051] Figure 21 It is a schematic diagram of the lower body structure of the front baffle;

[0052] Figure 22 It is a schematic diagram of the upper cross beam structure of the front baffle;

[0053] Figure 23 It is a schematic diagram of the lower body structure of the lower cross beam of the front baffle;

[0054] Figure 24 It is a schematic diagram of the upper body structure of the lower cross beam of the front baffle;

[0055] Figure 25It is a schematic structural diagram of the front baffle support plate;

[0056] Figure 26 It is a schematic structural diagram of the front baffle longitudinal beam reinforcement plate;

[0057] The markings in the above figures are all: 1. Front longitudinal beam body; 2. Front longitudinal beam cover plate; 3. First rear mounting seat of the front subframe; 4. Second rear mounting seat of the front subframe; 5. First front longitudinal beam support plate; 6. Second front longitudinal beam support plate; 7. Front baffle triangular beam connection bracket; 8. Threshold connection plate; 9. Reinforcement plate for the rear mounting seat of the front subframe; 10. Rear reinforcement plate of the front longitudinal beam; 11. Lower body of the front baffle; 12. Upper body of the front baffle; 13. Upper cross beam of the front baffle; 14. Lower body of the lower cross beam of the front baffle; 15. Upper body of the lower cross beam of the front baffle; 16. Front baffle support plate; 17. Front baffle longitudinal beam reinforcement plate; 18. First baffle body; 19. Second baffle body. Detailed implementation manners

[0058] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0059] It should be noted that in the following embodiments, the "first", "second", "third", "fourth", "fifth", "sixth" and "seventh" do not represent an absolute distinction relationship in terms of structure and / or function, nor do they represent the execution order. They are only for the convenience of description.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0061] Such as Figures 1 to 26As shown in the figure, the present invention provides an engine compartment assembly structure for an automobile, which includes a front longitudinal beam assembly, a front baffle body connected to the front longitudinal beam assembly, a front baffle upper cross beam 13 connected to the front longitudinal beam assembly, and a front baffle lower cross beam connected to the front baffle upper cross beam 13 and located below the front baffle upper cross beam 13. The front baffle upper cross beam 13 has a first contact surface and a second contact surface connected to the front baffle body. A first cavity is formed at the connection between the first contact surface and the second contact surface and the front baffle body, and the first cavity runs through along the length direction of the front baffle upper cross beam 13. The front baffle lower cross beam has a third contact surface connected to the front baffle upper cross beam 13 and a fourth contact surface connected to the front baffle body. A second cavity is formed at the connection between the third contact surface and the fourth contact surface and the front baffle body, and the second cavity runs through along the length direction of the front baffle lower cross beam.

[0062] Specifically, as Figure 1 and Figure 2 shown, two front longitudinal beam assemblies are provided and the two front longitudinal beam assemblies are symmetrically arranged. The length direction of the front longitudinal beam assembly is parallel to the first direction or there is an included angle between the length direction of the front longitudinal beam assembly and the first direction. The two front longitudinal beam assemblies are on the same straight line parallel to the second direction. Both the first direction and the second direction are horizontal directions and the first direction and the second direction are perpendicular to each other. The first direction is parallel to the length direction of the automobile body, and the second direction is parallel to the width direction of the automobile body. The length direction of the front baffle body is parallel to the second direction, and one end in the length direction of the front longitudinal beam assembly is fixedly connected to the front baffle body. The length direction of the front baffle upper cross beam 13 is parallel to the second direction or there is an included angle between the length direction of the front baffle upper cross beam 13 and the second direction. The length direction of the front baffle lower cross beam is parallel to the second direction or there is an included angle between the length direction of the front baffle lower cross beam and the second direction. The front longitudinal beam assembly, the front baffle upper cross beam 13 and the front baffle lower cross beam are located on the same side of the front baffle body. The front baffle upper cross beam 13 is located between the two front longitudinal beam assemblies, and both ends of the front baffle upper cross beam 13 are fixedly connected to the two front longitudinal beam assemblies respectively. The front baffle lower cross beam is also located between the two front longitudinal beam assemblies, and both ends of the front baffle lower cross beam are fixedly connected to the two front longitudinal beam assemblies respectively. The length of the front baffle body is greater than the lengths of the front baffle upper cross beam 13 and the front baffle lower cross beam, and the front baffle upper cross beam 13 and the front baffle lower cross beam are fixedly connected to the front baffle body at the middle position in the length direction of the front baffle body.

[0063] As Figures 1 to 3As shown, the third contact surface is located below the second contact surface, and the first contact surface is located above the second contact surface. The front baffle body includes an upper front baffle body 12 and a lower front baffle body 11. The lower end of the upper front baffle body 12 is fixedly connected to the upper end of the lower front baffle body 11. The lower end of the lower front baffle body 11 is fixedly connected to the lower cross beam of the front baffle. The first contact surface is fixedly connected to the lower end of the upper front baffle body 12. The lower front baffle body 11 is a plate structure with an L-shaped cross section. The lower front baffle body 11 includes a connected first baffle body 18 and a second baffle body 19. The first baffle body 18 is fixedly connected to the lower end of the upper front baffle body 12 and the second contact surface. The second baffle body 19 is fixedly connected to the fourth contact surface. The first cavity is formed by the first baffle body 18 and the upper cross beam 13 of the front baffle. The upper cross beam 13 of the front baffle is a beam structure with a U-shaped cross section. Flanges are provided at both ends of the side opening of the upper cross beam 13 of the front baffle. The first contact surface and the second contact surface are the outer surfaces of the two flanges. The first contact surface and the second contact surface are planes parallel to the length direction of the upper cross beam 13 of the front baffle. The lower end of the upper front baffle body 12 is sandwiched between the upper end of the first baffle body 18 and the first contact surface. The upper end of the first baffle body 18 is fixedly connected to the lower end of the upper front baffle body 12 and the first contact surface. The lower end of the first baffle body 18 is fixedly connected to one end of the second baffle body 19. The other end of the second baffle body 19 is fixedly connected to the fourth contact surface. There is an included angle between the first baffle body 18 and the second baffle body 19. Between the first contact surface and the second contact surface is the U-shaped inner cavity of the upper cross beam 13 of the front baffle. The first baffle body 18 closes the side opening of the upper cross beam 13 of the front baffle, thus forming the first cavity, and the first cavity extends along the entire length direction of the upper cross beam 13 of the front baffle.

[0064] As Figures 1 to 3As shown, the lower cross beam of the front baffle includes the upper body 15 of the lower cross beam of the front baffle and the lower body 14 of the lower cross beam of the front baffle. The upper end of the upper body 15 of the lower cross beam of the front baffle is connected to the upper cross beam 13 of the front baffle. The lower end of the upper body 15 of the lower cross beam of the front baffle is connected to the lower body 14 of the lower cross beam of the front baffle. The lower body 14 of the lower cross beam of the front baffle is connected to the lower body 11 of the front baffle. The second cavity is formed by being surrounded by the lower body 11 of the front baffle, the upper body 15 of the lower cross beam of the front baffle, and the lower body 14 of the lower cross beam of the front baffle. The upper body 15 of the lower cross beam of the front baffle and the lower body 14 of the lower cross beam of the front baffle are located below the second baffle body 19. The upper ends of the upper cross beam 13 of the front baffle and the upper body 15 of the lower cross beam of the front baffle are fixedly connected to the second baffle body 19 at the same part of the second baffle body 19. The third contact surface is the end face of the upper end of the upper body 15 of the lower cross beam of the front baffle. The lower end of the upper body 15 of the lower cross beam of the front baffle is fixedly connected to one end of the lower body 14 of the lower cross beam of the front baffle. The other end of the lower body 14 of the lower cross beam of the front baffle is fixedly connected to the second baffle body 19. The end face of this end of the lower body 14 of the lower cross beam of the front baffle is the fourth contact surface. The third contact surface and the fourth contact surface are planes parallel to the second direction, or there is an included angle between the third contact surface and the fourth contact surface and the second direction. The lengths of the upper body 15 of the lower cross beam of the front baffle and the lower body 14 of the lower cross beam of the front baffle are the same or different. The length directions of the upper body 15 of the lower cross beam of the front baffle and the lower body 14 of the lower cross beam of the front baffle are parallel to the second direction, or there is an included angle between the length directions of the upper body 15 of the lower cross beam of the front baffle and the lower body 14 of the lower cross beam of the front baffle and the second direction. The lower cross beam of the front baffle is a beam structure with a hollow interior. The second baffle body 19 closes the side opening of the lower cross beam of the front baffle, thereby forming the second cavity, and the second cavity extends in the entire length direction of the lower cross beam of the front baffle.

[0065] As Figures 1 to 3As shown in the figure, in the present invention, through the connection of the upper cross beam 13 of the front baffle, the lower body 14 of the lower cross beam of the front baffle, and the upper body 15 of the lower cross beam of the front baffle at the cross section A-A, two cavity bodies are formed, realizing that the double-closed cross-section cross beam penetrates the structure to connect two front longitudinal beam assemblies, the upper body 12 of the front baffle, and the lower body 11 of the front baffle, and further connecting the two A-pillar assembly structures on the vehicle body side. The two parts, the first front longitudinal beam support plate 5 and the second front longitudinal beam support plate 6, are extensions of this cavity structure and are indirectly connected to the A-pillar structure, greatly improving the connection stiffness and mode here, as well as the torsional stiffness and mode of the entire vehicle body. At the same time, the anti-intrusion strength of collision safety is improved. It is equivalent to adding two cavity strengthening structures running through the left and right on the upper body 12 of the front baffle and the lower body 11 of the front baffle, improving the anti-deformation ability and structural stiffness of the upper body 12 of the front baffle and the lower body 11 of the front baffle, and can resist the intrusion of other parts such as the engine and transmission into the upper body 12 of the front baffle and the lower body 11 of the front baffle during vehicle collision, resulting in deformation of the passenger compartment and reduction of the passenger survival space, thus improving the anti-deformation ability of the upper body 12 of the front baffle and the lower body 11 of the front baffle; in addition, the double-cavity cross beam is equivalent to adding two cross beams to improve the stiffness of the upper body 12 of the front baffle and the lower body 11 of the front baffle, increasing the overall structural stiffness, reducing the vibration of the engine and chassis, reducing the body twist caused by the vehicle passing over uneven roads, and reducing the noise transmission to the passenger compartment, thus improving the comfort of the passenger compartment.

[0066] As Figure 1 , Figure 2 and Figure 4 shown, the front longitudinal beam assembly includes a front longitudinal beam body 1 and a first front longitudinal beam support plate 5. The first front longitudinal beam support plate 5 has a fifth contact surface and a sixth contact surface for connecting with the front baffle body. The connection between the fifth contact surface and the sixth contact surface and the front baffle body forms a third cavity running through along the length direction of the first front longitudinal beam support plate 5. The first front longitudinal beam support plate 5 is located below the upper body 12 of the front baffle. The first front longitudinal beam support plate 5 is a beam body structure with a U-shaped cross section. Flanges are provided at both ends of the side opening of the first front longitudinal beam support plate 5. The fifth contact surface and the sixth contact surface are the outer surfaces of the two flanges. The U-shaped inner cavity of the first front longitudinal beam support plate 5 is between the fifth contact surface and the sixth contact surface. The first baffle body 18 closes the side opening of the first front longitudinal beam support plate 5, thereby forming the third cavity, and the third cavity extends along the entire length direction of the first front longitudinal beam support plate 5. The first front longitudinal beam support plate 5 is fixedly connected to the first baffle body 18. The length direction of the front longitudinal beam body 1 is parallel to the first direction or there is an included angle between the length direction of the front longitudinal beam body 1 and the first direction. The front longitudinal beam body 1 and the front longitudinal beam cover plate 2 are located between the first cavity and the third cavity, and the first cavity and the third cavity are communicated. Both the first cavity and the third cavity are box-shaped cavities.

[0067] AsFigure 1 , Figure 2 , and Figure 4 Figure 16 As shown in Figure 4 and Figure 16 , the front longitudinal beam assembly further includes a second front longitudinal beam support plate 6 and a sill connecting plate 8 connected to the second front longitudinal beam support plate 6 and the front baffle body. The second front longitudinal beam support plate 6 is located below the first front longitudinal beam support plate 5. The front baffle body, the sill connecting plate 8, and the second front longitudinal beam support plate 6 enclose a fourth cavity penetrating along the length direction of the second front longitudinal beam support plate 6. The fourth cavity is located below the third cavity. The front longitudinal beam body 1 and the front longitudinal beam cover plate 2 are also located between the second cavity and the fourth cavity. The second cavity and the fourth cavity are on the same straight line parallel to the second direction, and the second cavity and the fourth cavity are connected. The fourth cavity is a cavity formed by enclosing the sill connecting plate 8, the second front longitudinal beam support plate 6, and the lower part of the front baffle body 11. The upper end of the second front longitudinal beam support plate 6 is fixedly connected to the first baffle body 18 at the same position as the first front longitudinal beam support plate 5 on the first baffle body 18. The lower end of the second front longitudinal beam support plate 6 is located below the second baffle body 19, and the lower end of the second front longitudinal beam support plate 6 is fixedly connected to one end of the sill connecting plate 8. The other end of the sill connecting plate 8 is fixedly connected to the second baffle body 19. The sill connecting plate 8 is located below the second baffle body 19.

[0068] As Figure 4 shown in Figure 4 , in the present invention, through the connection of two front longitudinal beam support plates, the sill connecting plate 8 and the front baffle body at the cross-section B-B, two cavity bodies are formed, realizing the connection of the double-closed cross-section crossbeam to connect two front longitudinal beam assemblies, the upper part of the front baffle body 12, and the lower part of the front baffle body 11. Further, it connects the upper crossbeam of the front baffle 13, the lower part of the lower crossbeam of the front baffle 14, and the upper part of the lower crossbeam of the front baffle 15. The first front longitudinal beam support plate 5 and the second front longitudinal beam support plate 6 are connected to the body side wall A-pillar assembly, greatly improving the connection stiffness and mode here, also improving the torsional stiffness and mode of the overall automobile body, and at the same time improving the anti-intrusion strength of collision safety.

[0069] As Figure 1 , Figure 2 , Figure 4 and Figure 16As shown, the front longitudinal beam assembly further includes a front baffle support plate 16. The front baffle support plate 16 and the first front longitudinal beam support plate 5 are located on opposite sides of the front baffle body. The front baffle support plate 16 has a seventh contact surface and an eighth contact surface connected to the front baffle body. At the connection of the seventh contact surface and the eighth contact surface with the front baffle body, a fifth cavity is formed that runs through along the length direction of the first front longitudinal beam support plate 5. The front baffle support plate 16 is located below the upper part of the front baffle body 12. The front baffle support plate 16 is a beam structure with a U-shaped cross-section. Flanges are provided at both ends of the side opening of the front baffle support plate 16. The seventh contact surface and the eighth contact surface are the outer surfaces of the two flanges. The U-shaped inner cavity of the front baffle support plate 16 is between the seventh contact surface and the eighth contact surface. The first baffle body 18 closes the side opening of the front baffle support plate 16, thereby forming the fifth cavity. The fifth cavity extends along the entire length direction of the front baffle support plate 16, and the fifth cavity is a box-shaped cavity. The front baffle support plate 16 is fixedly connected to the first baffle body 18. Two front baffle support plates 16 are provided and are symmetrically arranged. The two front baffle support plates 16 are respectively fixedly connected to both ends in the length direction of the first baffle body 18. The front baffle support plate 16 and the first front longitudinal beam support plate 5 are connected to the first baffle body 18, and the second front longitudinal beam support plate 6 and the sill connecting plate 8 are connected to the second baffle body 19. The upper end of the front baffle upper crossbeam 13 is clamped between the upper part of the front baffle body 12 and the first front longitudinal beam support plate 5. By providing the front baffle support plate 16 to form the fifth cavity, the anti-deformation ability and structural stiffness of the lower part of the front baffle body 11 and the upper part of the front baffle body 12 are further improved, which can resist the intrusion of other parts such as the engine and transmission into the lower part of the front baffle body 11 and the upper part of the front baffle body 12 during a vehicle collision, resulting in the deformation of the passenger compartment and the reduction of the passenger's living space, thus improving the anti-deformation ability of the lower part of the front baffle body 11 and the upper part of the front baffle body 12; in addition, adding the crossbeam 16 to form the fifth cavity is equivalent to adding one crossbeam, which improves the stiffness of the lower part of the front baffle body 11 and the upper part of the front baffle body 12, increases the overall structural stiffness, reduces the vibration of the engine and the chassis, reduces the body twist caused by the vehicle passing over uneven roads, and reduces the noise transmission to the passenger compartment, thereby improving the comfort of the passenger compartment. Here, the crossbeam 16 can be selected to be added or deleted according to the body's different configuration requirements. For example, the high-configured version needs to meet the 5-star collision requirement and add this part, while the basic low-configured version can cancel this part to reduce costs and selling prices.

[0070] As Figure 1 , Figure 2 , Figure 5 and Figure 16As shown in the figure, the front longitudinal beam assembly further includes a first front subframe rear mounting seat 3 and a second front subframe rear mounting seat 4 connected to the front baffle body. The front baffle body, the first front subframe rear mounting seat 3, and the second front subframe rear mounting seat 4 enclose a sixth cavity, which is a box-shaped cavity. The first front subframe rear mounting seat 3 and the second front subframe rear mounting seat 4 are connected. The first front subframe rear mounting seat 3 and the second front subframe rear mounting seat 4 are fixedly connected to the same end of the front longitudinal beam body 1, and the first front subframe rear mounting seat 3 and the second front subframe rear mounting seat 4 are vertically arranged.

[0071] As Figure 1 , Figure 2 , Figure 5 and Figure 16 shown in the figure, the first front longitudinal beam support plate 5, the second front longitudinal beam support plate 6, and the sill connecting plate 8 are fixedly connected to the first front subframe rear mounting seat 3. The first front longitudinal beam support plate 5, the second front longitudinal beam support plate 6, and the sill connecting plate 8 are located on the same side of the first front subframe rear mounting seat 3. The first front subframe rear mounting seat 3 is located between the sill connecting plate 8 and the second front subframe rear mounting seat 4. The first front longitudinal beam support plate 5, the second front longitudinal beam support plate 6, and the sill connecting plate 8 extend towards the outside of the first front subframe rear mounting seat 3. The first front longitudinal beam support plate 5, the second front longitudinal beam support plate 6, and the sill connecting plate 8 of the two front longitudinal beam assemblies respectively extend to the two ends of the front baffle lower body 11 along the length direction. The front baffle upper cross beam 13 and the front baffle lower cross beam are located between the second front subframe rear mounting seats 4 of the two front longitudinal beam assemblies. The two ends of the front baffle upper cross beam 13 in the length direction are respectively fixedly connected to the second front subframe rear mounting seats 4 of the two front longitudinal beam assemblies, and the two ends of the front baffle lower cross beam in the length direction are also respectively fixedly connected to the second front subframe rear mounting seats 4 of the two front longitudinal beam assemblies.

[0072] In the present invention, through the front baffle longitudinal beam reinforcement plate 17, the front baffle lower body 11, the first front subframe rear mounting seat 3, and the second front subframe rear mounting seat 4 at the cross-section C-C, a complete closed cavity or cross-section is formed on the two front longitudinal beam assemblies, greatly enhancing the anti-deformation ability and the function of transmitting collision energy of the left and right front longitudinal beams in terms of collision safety.

[0073] As Figure 1 , Figure 2 , Figure 5 and Figure 16As shown, the front longitudinal beam assembly further includes a reinforcement plate 9 for the rear mounting seat of the front subframe. The reinforcement plate 9 for the rear mounting seat of the front subframe is located between the first rear mounting seat 3 of the front subframe and the second rear mounting seat 4 of the front subframe, and the reinforcement plate 9 for the rear mounting seat of the front subframe is fixedly connected to the first rear mounting seat 3 of the front subframe and the second rear mounting seat 4 of the front subframe. The reinforcement plate 9 for the rear mounting seat of the front subframe is located in the sixth cavity. The reinforcement plate 9 for the rear mounting seat of the front subframe is located below the front longitudinal beam body 1. The reinforcement plate 9 for the rear mounting seat of the front subframe is of a Z-shaped structure. The setting of the reinforcement plate 9 for the rear mounting seat of the front subframe improves the stiffness and strength of the mounting points of the rear mounting seat of the front subframe.

[0074] As Figure 1 , Figure 2 and Figure 16 As shown, the front longitudinal beam assembly further includes a front longitudinal beam cover plate 2 connected to the front longitudinal beam body 1. The front longitudinal beam body 1 is fixedly connected to the front baffle upper cross beam 13, the front baffle body (the upper front baffle body 12 and the lower front baffle body 11), the first rear mounting seat 3 of the front subframe and the second rear mounting seat 4 of the front subframe. The front longitudinal beam cover plate 2 is fixedly connected to the first front longitudinal beam support plate 5 and the second front longitudinal beam support plate 6. The front longitudinal beam body 1 is a beam body structure with a U-shaped cross section. The front longitudinal beam cover plate 2 closes the side opening of the front longitudinal beam body 1. The length direction of the front longitudinal beam cover plate 2 is consistent with the length direction of the front longitudinal beam body 1, and the front end of the front longitudinal beam cover plate 2 is aligned with the front end of the front longitudinal beam body 1.

[0075] As Figure 1 , Figure 2 and Figure 5As shown in the figure, the structure of the engine compartment assembly of the present invention further includes a front baffle longitudinal beam reinforcement plate 17. The front baffle longitudinal beam reinforcement plate 17 has a ninth contact surface and a tenth contact surface connected to the front baffle body. A seventh cavity is formed at the connection between the ninth contact surface and the tenth contact surface and the front baffle body. The front baffle longitudinal beam reinforcement plate 17 is located below the upper body 12 of the front baffle. The front baffle longitudinal beam reinforcement plate 17 and the front baffle support plate 16 are on the same side of the lower body 11 of the front baffle. The front baffle longitudinal beam reinforcement plate 17 is a beam structure with a U-shaped cross-section. Flanges are provided at both ends of the side opening of the front baffle longitudinal beam reinforcement plate 17. The ninth contact surface and the tenth contact surface are the outer surfaces of the two flanges. The U-shaped inner cavity of the front baffle longitudinal beam reinforcement plate 17 is between the ninth contact surface and the tenth contact surface. The second baffle body 19 closes the side opening of the front baffle longitudinal beam reinforcement plate 17, thereby forming the seventh cavity. The seventh cavity extends along the length direction of the front baffle longitudinal beam reinforcement plate 17, and the seventh cavity is a box-shaped cavity. The front baffle longitudinal beam reinforcement plate 17 is fixedly connected to the second baffle body 19. There are two front baffle longitudinal beam reinforcement plates 17, and the two front baffle longitudinal beam reinforcement plates 17 are symmetrically arranged. The two front baffle longitudinal beam reinforcement plates 17 are respectively fixedly connected to both ends in the length direction of the second baffle body 19. Each front baffle longitudinal beam reinforcement plate 17 is respectively located below a front baffle support plate 16. By providing the front baffle longitudinal beam reinforcement plate 17, the collision resistance and deformation ability of the front longitudinal beam assembly can be improved, and the role of bearing and decomposing the collision force during a collision can be played. Here, the front baffle longitudinal beam reinforcement plate 17 can be selected to be added or deleted according to different configuration requirements of the vehicle body. For example, in the high configuration version, this part needs to be added to meet the 5-star collision requirement, and in the basic low configuration, this part can be cancelled to reduce costs and selling prices.

[0076] As Figure 1 、 Figure 2 and Figure 16 shown, the front longitudinal beam assembly further includes a front baffle triangular beam connection bracket 7. The front baffle triangular beam connection bracket 7 is located outside the rear mounting seat 4 of the second front subframe. The front baffle triangular beam connection bracket 7 is fixedly connected to the rear mounting seat 4 of the second front subframe. The front baffle triangular beam connection bracket 7 is also fixedly connected to the front baffle lower crossbeam. By providing the front baffle triangular beam connection bracket 7, the cavity structures of the upper body 15 of the front baffle lower crossbeam and the front baffle support plate 16 are respectively connected and penetrated with the front longitudinal beam assembly on the left and right, and further penetrated with the cavity structure formed by the second front longitudinal beam support plate 6, and are connected and strengthened with the A-pillar, which improves the connection stiffness and strength of the entire left and right front longitudinal beams, improves the anti-collision deformation ability of the front baffle body, the lower body 11 of the front baffle, and the upper body 12 of the front baffle, and improves the collision safety performance.

[0077] As Figure 1 and Figure 2As shown in the figure, the structure of the engine compartment assembly of the vehicle includes the above-mentioned multiple components. The adjacent two components are connected by welding, riveting, bolts or other means, and the adjacent two components can be connected by spot welding or brazing. For example, components such as the front longitudinal beam body 1, the front longitudinal beam cover plate 2, the first rear mounting seat of the front subframe 3, the second rear mounting seat of the front subframe 4, the first front longitudinal beam support plate 5, the second front longitudinal beam support plate 6, the left connecting bracket of the front baffle triangular beam, the sill connecting plate 8, the reinforcement plate of the rear mounting seat of the front subframe 9, and the rear reinforcement plate of the front longitudinal beam 10 are connected together by spot welding, riveting, bolts or other means to form the front longitudinal beam assembly. For example, the two front longitudinal beam assemblies are welded to the lower body 11 of the front baffle, the upper body 12 of the front baffle, the upper cross beam 13 of the front baffle, the lower body 14 of the lower cross beam of the front baffle, the upper body 15 of the upper cross beam of the front baffle, the two front baffle support plates 16, and the two front baffle longitudinal beam reinforcement plates 17. They can also be connected together by other processes such as spot welding, brazing, riveting, bolts, etc., and spot welding and brazing are preferred.

[0078] As Figure 1 and Figure 2 As shown in the figure, the structure of the engine compartment assembly of the vehicle includes the above-mentioned multiple components, and the components are sheet metal parts formed by stamping with a steel plate stamping die. Components such as the front longitudinal beam body 1, the front longitudinal beam cover plate 2, the first rear mounting seat of the front subframe 3, the second rear mounting seat of the front subframe 4, the first front longitudinal beam support plate 5, the second front longitudinal beam support plate 6, the left connecting bracket of the front baffle triangular beam, the sill connecting plate 8, the reinforcement plate of the rear mounting seat of the front subframe 9, and the rear reinforcement plate of the left front longitudinal beam 10 are respectively formed by stamping with a steel plate stamping die. The materials and thicknesses of each component can be designed with different specifications according to the strength requirements, and low-carbon steel plates are preferred.

[0079] The above structure is the frame structure design of the front compartment. Installation point structures and installation point reinforcement structures can be added in areas such as the front longitudinal beam assembly and the front baffle body according to the installation requirements of different vehicle models. Also, according to different regulatory collision conditions, stiffeners, gussets, patch plates can be appropriately added, or the vehicle can be strengthened by using higher-strength steel plates. All of these are within the protection scope of the present invention.

[0080] The engine compartment assembly structure of the above structure has the following advantages:

[0081] 1. The structure of the engine compartment assembly of the present invention is composed of about 29 steel plates welded together. The engine compartment assembly connected by welding, bolts or rivets can meet different safety collision requirements for vehicles with different safety performance requirements by adjusting the thickness of the sheet metal or the material strength of the steel plate or aluminum plate. It can also be locally strengthened by adding patch plates or gussets in the form to cope with the collision conditions of different vehicle models. At the same time, the parts are designed to be of the same specification to achieve the common use of platform vehicle models;

[0082] 2. The new structure of the engine compartment assembly of the present invention significantly improves the torsional stiffness, mode, and dynamic stiffness of the body-in-white skeleton assembly, and greatly enhances the anti-collision deformation ability of the front compartment. Taking a certain compact car as an example, the engine compartment assembly with this structure has achieved a 10% increase in the torsional stiffness of the body-in-white skeleton assembly, a 2 Hz increase in mode, and a 20% increase in the safety collision performance, significantly improving the frontal collision safety performance, being able to well transmit the collision energy, and effectively protecting the occupant compartment and the battery pack. At the same time, it reduces the high-speed noise of the whole vehicle. After analysis, the noise in the cockpit is reduced on a rough asphalt road at 80 km / h. In addition, the process of this front compartment structure is simple and easy to implement;

[0083] 3. The structure is simple, with a light weight and low cost;

[0084] 4. The connection process of welding, bolts, or rivets is simple and can be easily realized in the process;

[0085] 5. The local stiffness and mode are significantly improved. Especially, the collision force transmission path is reasonably designed, which can significantly improve the collision safety performance;

[0086] 6. The structural framework of the present invention can be developed as a platform and can be applied to different vehicle models. For different working conditions, the collision safety requirements or installation requirements can be achieved by slightly strengthening the local part.

[0087] The present invention also provides an automobile, including the engine compartment assembly structure of the above structure. The specific structure of this engine compartment assembly structure can be referred to Figures 1 to 26 , which will not be elaborated here. Since the automobile of the present invention includes the engine compartment assembly structure in the above embodiment, it has all the advantages of the above engine compartment assembly structure.

[0088] The present invention has been described exemplarily above in conjunction with the drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. Structure of an automotive engine compartment assembly, including a front longitudinal beam assembly and a front baffle body connected to the front longitudinal beam assembly, characterized in that: It further includes a front baffle upper crossbeam connected to the front longitudinal beam assembly, and a front baffle lower crossbeam connected to the front baffle upper crossbeam and located below the front baffle upper crossbeam. The front baffle upper crossbeam has a first contact surface and a second contact surface connected to the front baffle body. A first cavity is formed at the connection of the first contact surface and the second contact surface with the front baffle body, and the first cavity runs through along the length direction of the front baffle upper crossbeam. The front baffle lower crossbeam has a third contact surface and a fourth contact surface. A second cavity is formed at the connection of the third contact surface and the fourth contact surface with the front baffle body, and the second cavity runs through along the length direction of the front baffle lower crossbeam; The front longitudinal beam assembly includes a first front longitudinal beam support plate, and the first front longitudinal beam support plate has a fifth contact surface and a sixth contact surface connected to the front baffle body. A third cavity is formed at the connection of the fifth contact surface and the sixth contact surface with the front baffle body, and the third cavity runs through along the length direction of the first front longitudinal beam support plate; The front longitudinal beam assembly further includes a first front subframe rear mounting seat and a second front subframe rear mounting seat connected to the front baffle body. The front baffle body, the first front subframe rear mounting seat and the second front subframe rear mounting seat enclose a sixth cavity, and the first front subframe rear mounting seat and the second front subframe rear mounting seat are connected; The front longitudinal beam assembly further includes a front longitudinal beam body and a front longitudinal beam cover plate connected to the front longitudinal beam body. The front longitudinal beam body is connected to the front baffle upper crossbeam, the front baffle body, the first front subframe rear mounting seat and the second front subframe rear mounting seat; The front longitudinal beam assembly further includes a second front longitudinal beam support plate, and the second front longitudinal beam support plate is located below the first front longitudinal beam support plate. The front longitudinal beam cover plate is connected to the first front longitudinal beam support plate and the second front longitudinal beam support plate.

2. The structure of the engine compartment assembly of an automobile according to claim 1, characterized in that: The third contact surface is located below the second contact surface, and the first contact surface is located above the second contact surface.

3. The structure of the engine compartment assembly of an automobile according to claim 1, wherein: The front baffle body includes a front baffle upper part body and a front baffle lower part body. The lower end of the front baffle upper part body is connected to the upper end of the front baffle lower part body. The lower end of the front baffle lower part body is connected to the front baffle lower crossbeam, and the first contact surface is connected to the lower end of the front baffle upper part body.

4. The structure of the engine compartment assembly of an automobile according to claim 3, characterized in that: The front baffle lower part body is a structure with an L-shaped cross-section. The front baffle lower part body includes a first baffle body and a second baffle body connected to each other. The first baffle body is connected to the lower end of the front baffle upper part body and the second contact surface, and the second baffle body is connected to the fourth contact surface. The first cavity is formed by the first baffle body and the front baffle upper crossbeam enclosing each other.

5. The structure of the engine compartment assembly of an automobile according to claim 3, characterized in that: The front baffle lower crossbeam includes a front baffle lower crossbeam upper part body and a front baffle lower crossbeam lower part body. The upper end of the front baffle lower crossbeam upper part body is connected to the front baffle upper crossbeam or the front baffle body. The lower end of the front baffle lower crossbeam upper part body is connected to the front baffle lower crossbeam lower part body. The front baffle lower crossbeam lower part body is connected to the front baffle lower part body. The second cavity is formed by the front baffle lower part body, the front baffle lower crossbeam upper part body and the front baffle lower crossbeam lower part body enclosing each other.

6. The structure of the engine compartment assembly of an automobile according to claim 5, characterized in that: The upper body of the lower crossbeam of the front baffle and the lower body of the lower crossbeam of the front baffle are located below the second baffle body. The upper ends of the upper crossbeam of the front baffle and the upper body of the lower crossbeam of the front baffle are fixedly connected to the second baffle body at the same part of the second baffle body. The third contact surface is the upper end face of the upper body of the lower crossbeam of the front baffle. The lower end of the upper body of the lower crossbeam of the front baffle is fixedly connected to one end of the lower body of the lower crossbeam of the front baffle. The other end of the lower body of the lower crossbeam of the front baffle is fixedly connected to the second baffle body. The end face of this end of the lower body of the lower crossbeam of the front baffle is the fourth contact surface. The third contact surface and the fourth contact surface are planes parallel to the second direction, or there is an included angle between the third contact surface and the fourth contact surface and the second direction.

7. The structure of the engine compartment assembly of an automobile according to claim 4, characterized in that: The front longitudinal beam assembly further includes a sill connecting plate connected to the second front longitudinal beam support plate and the front baffle body. The front baffle body, the sill connecting plate, and the second front longitudinal beam support plate enclose a fourth cavity that runs through in the length direction of the second front longitudinal beam support plate. The fourth cavity is located below the third cavity.

8. The structure of the engine compartment assembly of an automobile according to claim 7, characterized in that: The front longitudinal beam assembly further includes a front baffle support plate. The front baffle support plate and the first front longitudinal beam support plate are located on opposite sides of the front baffle body. The front baffle support plate has a seventh contact surface and an eighth contact surface connected to the front baffle body. A fifth cavity that runs through in the length direction of the first front longitudinal beam support plate is formed at the connection of the seventh contact surface and the eighth contact surface with the front baffle body.

9. The structure of the engine compartment assembly of an automobile according to claim 8, characterized in that: The front baffle support plate and the first front longitudinal beam support plate are connected to the second baffle body, and the second front longitudinal beam support plate and the sill connecting plate are connected to the second baffle body.

10. The structure of the engine compartment assembly of an automobile according to claim 9, characterized in that: The first front longitudinal beam support plate is located below the upper body of the front baffle. The first front longitudinal beam support plate is a beam structure with a U-shaped cross-section. Flanges are provided at both ends of the side opening of the first front longitudinal beam support plate. The fifth contact surface and the sixth contact surface are the outer surfaces of the two flanges. The U-shaped inner cavity of the first front longitudinal beam support plate is between the fifth contact surface and the sixth contact surface. The first baffle body closes the side opening of the first front longitudinal beam support, thereby forming a third cavity. The third cavity extends in the entire length direction of the first front longitudinal beam support plate.

11. The structure of the engine compartment assembly of an automobile according to any one of claims 1 to 10, characterized in that: The first front longitudinal beam support plate, the second front longitudinal beam support plate, and the sill connecting plate are connected to the first rear mounting seat of the front subframe. The first front longitudinal beam support plate, the second front longitudinal beam support plate, and the sill connecting plate are located on the same side of the first rear mounting seat of the front subframe.

12. The structure of the engine compartment assembly of an automobile according to claim 10, wherein: The front longitudinal beam assembly further includes a reinforcement plate for the rear mounting seat of the front subframe. The reinforcement plate for the rear mounting seat of the front subframe is located between the first rear mounting seat of the front subframe and the second rear mounting seat of the front subframe and is connected to the first rear mounting seat of the front subframe and the second rear mounting seat of the front subframe. The reinforcement plate for the rear mounting seat of the front subframe is located in the sixth cavity.

13. The structure of the engine compartment assembly of an automobile according to claim 10, characterized in that: The reinforcement plate for the rear mounting seat of the front subframe is located below the front longitudinal beam body. The reinforcement plate for the rear mounting seat of the front subframe is a Z-shaped structure.

14. The structure of the engine compartment assembly of an automobile according to any one of claims 1 to 10, characterized in that: It further includes a reinforcement plate for the front baffle longitudinal beam. The reinforcement plate for the front baffle longitudinal beam has a ninth contact surface and a tenth contact surface connected to the front baffle body. A seventh cavity is formed at the connection of the ninth contact surface and the tenth contact surface with the front baffle body.

15. The structure of the engine compartment assembly of an automobile according to claim 1, wherein: The structure of the vehicle engine compartment assembly includes multiple components, and two adjacent components are connected by welding, riveting or bolting.

16. The structure of the engine compartment assembly of an automobile according to claim 15, characterized in that: The components are metal plate-like parts.

17. The structure of the engine compartment assembly of an automobile according to any one of claims 1 to 10, characterized in that: Two front longitudinal beam assemblies are provided and the two front longitudinal beam assemblies are symmetrically arranged.

18. The structure of the engine compartment assembly of an automobile according to any one of claims 1 to 10, characterized in that: Mounting point structures and mounting point strengthening structures are provided on the front longitudinal beam assembly and / or the front baffle body.

19. The structure of the engine compartment assembly of an automobile according to any one of claims 1 to 10, characterized in that: Reinforcing ribs are provided on the front longitudinal beam assembly and / or the front baffle body.

20. The structure of the engine compartment assembly of an automobile according to any one of claims 1 to 10, characterized in that: The upper cross beam of the front baffle is fixedly connected to the first front longitudinal beam support plate integrally, the upper cross beam of the front baffle and the first front longitudinal beam support plate are integrally formed, and the first cavity and the third cavity communicate with each other.

21. The structure of the engine compartment assembly of an automobile according to claim 10, characterized in that: The first rear mounting seat of the front subframe and the second rear mounting seat of the front subframe are fixedly connected to form an integral body.

22. An automobile, characterized in that: It includes the structure of the vehicle engine compartment assembly according to any one of claims 1 to 21.

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