A vehicle front structure and a vehicle

Abstract

The application provides a vehicle front wall structure and a vehicle, and relates to the technical field of vehicle manufacturing. The method comprises a front wall inner plate structure, a transverse U-shaped beam structure, a longitudinal torsion beam structure and a floor structure; the front wall inner plate structure comprises a front wall inner plate body made of an aluminum alloy material and an electrical appliance reinforcing plate fixedly connected with the front wall inner plate body; the transverse U-shaped beam structure comprises a transverse U-shaped beam body, a windshield wiper reinforcing plate and a framework outer plate, and the transverse U-shaped beam body is made of a steel material with a strength greater than or equal to a preset strength; the upper end of the longitudinal torsion beam structure is connected with the transverse U-shaped beam structure and forms a cavity, and the lower end of the longitudinal torsion beam structure is connected to the front wall inner plate structure and the floor structure and forms a cavity, and the longitudinal torsion beam structure is made of a steel material with a strength greater than or equal to a preset strength. The vehicle front wall structure of the application effectively improves the safety of the vehicle front wall assembly under the premise of weight reduction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle manufacturing, and in particular to a vehicle front wall structure and a vehicle. BACKGROUND

[0002] With the rapid development of the automobile industry, consumers' requirements for commercial vehicle safety and energy efficiency are constantly increasing, and they are increasingly concerned about the safety of vehicles in collision tests and actual scene applications. The front wall assembly is a component of the cab body. When the vehicle hits a hard object or a column, the ability of the front wall assembly to resist deformation is an important guarantee for the safety of the driver and passengers.

[0003] Currently, the front wall assembly of most commercial vehicles is designed in reverse and modified according to specific use environments. This design usually includes a front wall inner panel structure and a transverse U-beam structure, the latter being responsible for the transmission of lateral force. However, when facing high-strength frontal or lateral impact, the strength of the transverse U-beam structure is insufficient, which can easily cause the front wall assembly to deform, thereby compressing the interior space of the cab and seriously threatening the safety of the driver and passengers. In addition, the use of aluminum alloy materials in a large range can achieve weight reduction, but the safety is low. SUMMARY

[0004] The present application provides a vehicle front wall structure and a vehicle to solve the problem of how to effectively improve the safety of the vehicle front wall assembly while achieving weight reduction.

[0005] In a first aspect, the present application provides a vehicle front wall structure, comprising:

[0006] a front wall inner panel structure, a transverse U-beam structure, a longitudinal torsion beam structure, and a floor structure;

[0007] The front wall inner panel structure includes a front wall inner panel body of an aluminum alloy material and an electrical appliance reinforcement plate fixedly connected to the front wall inner panel body;

[0008] The transverse U-beam structure includes a transverse U-beam body, a wiper reinforcement plate, and a skeleton outer plate, and the transverse U-beam body is made of a steel material with a strength greater than or equal to a preset strength;

[0009] The upper end of the longitudinal torsion beam structure is connected to the transverse U-beam structure and forms a cavity, and the lower end of the longitudinal torsion beam structure is connected to the front wall inner panel structure and the floor structure and forms a cavity, and the longitudinal torsion beam structure is made of a steel material with a strength greater than or equal to a preset strength.

[0010] In one possible design, the longitudinal torsion beam structure includes: an outer longitudinal torsion beam located on the outer side of the front wall inner panel structure, and an inner longitudinal torsion beam located on the inner side of the front wall inner panel structure.

[0011] In one possible design, the upper and lower cross sections of the outer longitudinal torsion beam are both Z-shaped. The upper end of the outer longitudinal torsion beam is connected to the transverse U-shaped beam structure to form a cavity, and the lower end of the outer longitudinal torsion beam is connected to the front inner panel structure and the floor structure to form a cavity.

[0012] There are gaps in some areas between the outer longitudinal torsion beam and the inner front panel structure.

[0013] In one possible design, the longitudinal torsion beam structure includes: an inner longitudinal torsion beam, the upper end of which has an L-shaped cross-section, and the upper end of which is connected to the front inner panel structure and the transverse U-shaped beam structure to form a cavity.

[0014] The lower end of the inner longitudinal torsion beam has a Z-shaped cross-section, and the lower end of the inner longitudinal torsion beam is connected to the floor structure to form a cavity.

[0015] In one possible design, weight-reduction holes are provided on the inner longitudinal torsion beam.

[0016] In one possible design, the inner longitudinal torsion beam is welded to the floor structure using a MIG welding process.

[0017] In one possible design, the electrical reinforcement plate is made of steel with a strength less than or equal to a preset strength.

[0018] In one possible design, both the wiper reinforcement plate and the outer frame plate are made of steel with a strength less than or equal to the preset strength.

[0019] In one possible design, the front bulkhead inner panel body and the electrical reinforcement plate are fixedly connected by adhesive and self-piercing riveting (SPR).

[0020] The transverse U-shaped beam body, wiper reinforcement plate, and outer frame plate are connected by SPR.

[0021] Secondly, this application provides a vehicle, comprising:

[0022] Such as the vehicle front structure described in the first aspect of the invention.

[0023] The vehicle front wall structure and the vehicle provided by the application include a front wall inner plate structure, a transverse U-shaped beam structure, a longitudinal torsion beam structure and a floor structure; the front wall inner plate structure includes a front wall inner plate body made of an aluminum alloy material and an electrical appliance reinforcing plate fixedly connected to the front wall inner plate body; the transverse U-shaped beam structure includes a transverse U-shaped beam body, a windshield wiper reinforcing plate and a framework outer plate, and the transverse U-shaped beam body is made of a steel material with a strength greater than or equal to a preset strength; the upper end of the longitudinal torsion beam structure is connected to the transverse U-shaped beam structure and forms a cavity, and the lower end of the longitudinal torsion beam structure is connected to the front wall inner plate structure and the floor structure and forms a cavity, and the longitudinal torsion beam structure is made of a steel material with a strength greater than or equal to a preset strength. The following technical effects are achieved: the front wall inner plate structure is strengthened, the rigidity is improved and the environmental part vibration amplitude is reduced through the structural design of the front wall inner plate structure of the front wall inner plate made of an aluminum alloy material and the electrical appliance reinforcing plate; the rigidity and stability of the cross beam are improved by using the cross beam U-shaped beam structure made of a steel material with high strength; the longitudinal torsion beam structure and the transverse U-shaped beam are fixedly connected to form a cage-shaped structure with the body, so that the body and the strength are greatly improved, the interior space of the cab when the vehicle collides with a columnar object is ensured, and the life safety of the driver and the passenger is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0025] Figure 1 The scene schematic diagram of the vehicle front wall structure provided by the embodiment of the application;

[0026] Figure 2 The vehicle front wall structure schematic diagram provided by the embodiment of the application Figure 1 ;

[0027] Figure 3 The vehicle front wall structure schematic diagram provided by the embodiment of the application Figure 2 ;

[0028] Figure 4 The vehicle front wall structure schematic diagram provided by the embodiment of the application Figure 3 ;

[0029] Figure 4 The vehicle front wall structure schematic diagram provided by the embodiment of the application Figure 6 ;

[0030] Figure 7 The vehicle front wall structure A-A sectional view provided by the embodiment of the application;

[0031] Figure 8 A B-B sectional view of a vehicle front wall structure according to an embodiment of the present application is provided.

[0032] Figure 9 A C-C sectional view of a vehicle front wall structure according to an embodiment of the present application is provided.

[0033] Figure 10 A D-D sectional view of a vehicle front wall structure according to an embodiment of the present application is provided.

[0034] Figure 11 A E-E sectional view of a vehicle front wall structure according to an embodiment of the present application is provided.

[0035] Figure 1 A F-F sectional view of a vehicle front wall structure according to an embodiment of the present application is provided.

[0036] Reference Signs:

[0037] 100 - vehicle front wall structure; 200 - vehicle; 300 - obstacle

[0038] 110 - front wall inner panel structure; 120 - transverse U-beam structure; 130 - longitudinal torsion beam structure; 140 - floor structure; 111 - front wall inner panel body; 112 - electric appliance reinforcement plate; 121 - transverse U-beam body; 122 - wiper reinforcement plate; 123 - skeleton outer panel; 131 - outer longitudinal torsion beam; 132 - inner longitudinal torsion beam DETAILED DESCRIPTION

[0039] The exemplary embodiments will now be described in detail with reference to the accompanying drawings. The following description is made with reference to the accompanying drawings, in which like reference numerals are used to refer to like elements throughout. The following description is made with reference to the accompanying drawings, in which like reference numerals are used to refer to like elements throughout. The embodiments described in the following exemplary embodiments are not meant to represent all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0040] In the embodiments of the present application, the terms "first", "second", and the like are used to distinguish between items or similar items that have substantially the same function and effect. Those skilled in the art can understand that the terms "first", "second", and the like do not limit the quantity and execution order, and the terms "first", "second", and the like do not necessarily mean different. It should be noted that in the embodiments of the present application, the words "exemplary" or "for example" are used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of the words "exemplary" or "for example" is intended to present the relevant concept in a specific manner. In the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more.

[0041] It should be noted that "at the time" in the embodiments of the present application can be at the moment when a certain condition occurs, or within a certain period of time after the occurrence of a certain condition, which is not limited in the embodiments of the present application.

[0042] In order to clearly describe the technical solutions of the embodiments of the present application, the following briefly introduces some terms and technologies involved in the embodiments of the present application:

[0043] Vehicle front wall assembly: The vehicle front wall assembly is located in the front part of the automobile, and the specific position is between the engine compartment and the passenger compartment. It not only plays the role of isolating the engine compartment and the passenger compartment, but also has an important role in the rigidity, crash safety and other aspects of the whole vehicle. The front wall assembly usually includes a support structure for mounting the instrument panel, steering column, pedal and other components.

[0044] Transverse U-shaped beam: The transverse U-shaped beam (also known as transverse U-beam or cross beam) of the automobile is an important component in the vehicle structure, mainly used to enhance the rigidity and safety of the vehicle body. It is usually located in the front wall assembly or other key positions, and plays the role of transmitting and dispersing loads.

[0045] Longitudinal torsion beam: The longitudinal torsion beam of the automobile usually refers to a structural component installed on the chassis of the vehicle, mainly used to enhance the rigidity of the vehicle body, transmit and disperse loads, and in some cases, play a part of the suspension system.

[0046] Wiper reinforcement plate: The wiper reinforcement plate of the automobile, also known as the wiper reinforcement plate or the front windshield wiper support plate, is an important component in the vehicle front wall assembly. Its main role is to provide a solid support structure for the installation of the wiper system and enhance the overall rigidity of the front wall area.

[0047] Outer panel of frame: The outer panel of frame of a car, usually refers to the metal sheet that covers the exterior of the vehicle body, which constitutes the main part of the vehicle appearance. These outer panels not only play a role in appearance, but also have an important influence on the overall rigidity, safety and durability of the vehicle body.

[0048] Opposite hand tool: In the field of vehicle manufacturing and maintenance, opposite hand tool usually refers to the parts that appear in pairs and work together. These parts may have similar or complementary functions, and they work together to achieve a specific mechanical function or system operation.

[0049] With the rapid development of the automotive industry, consumers' attention to vehicle safety is increasing. Today, vehicles are not just a means of transportation, but also an important barrier to protect the lives of drivers and passengers. The progress of modern technology not only greatly improves the performance and comfort of cars, but also makes manufacturers pay more attention to safety in the design and manufacturing process.

[0050] Whether it is an active safety system (such as automatic emergency braking, lane keeping assistance, etc.) or a passive safety system (such as high-strength body structure, multi-airbag configuration, etc.), it is constantly improving the vehicle's ability to respond to various complex road conditions and unexpected situations.

[0051] The front end assembly of the vehicle is a crucial part of the vehicle body structure, which plays a key role in improving the overall safety of the vehicle. The front end assembly not only affects the performance of the vehicle in the frontal collision, but also plays an important protective role in the integrity of the passenger compartment and the safety of the driver and passenger.

[0052] The front end assembly of the existing commercial vehicle adopts reverse design, and the device is changed according to the environment. The front end panel structure installs the environmental component, and the transverse U-shaped beam structure transmits force horizontally. When facing high-intensity frontal or side impact, the structural strength of the transverse U-shaped beam is insufficient, which causes the deformation of the vehicle front end assembly, extruding the interior space of the cab and threatening the safety of the driver and passenger.

[0053] Under the concept of weight reduction, most vehicles use large-area aluminum alloy materials as the material of the vehicle front end assembly. Although this material achieves effective weight reduction, the use of aluminum alloy materials on a large scale makes it difficult to achieve collision safety.

[0054] Therefore, under the premise of effectively reducing the weight, it is necessary to effectively improve the safety of the vehicle front end assembly, which is a problem to be solved at present.

[0055] Based on this, the embodiment of the present application provides a vehicle front end structure and a vehicle, which can be used in the field of vehicle manufacturing technology, and aims to solve the above technical problems of the prior art.

[0056] Figure 1 The scene schematic diagram of the vehicle front end structure provided by the embodiment of the present application. It should be noted that,Figure 1 The examples shown are merely examples of scenarios in which the embodiments of this application can be applied, to help those skilled in the art understand the technical content of this application, but do not mean that the embodiments of this application cannot be used in other devices, systems, environments or scenarios.

[0057] like Figure 2 The diagram illustrates a scenario of a vehicle front structure, including: a vehicle front structure 100, a vehicle 200, and an obstacle 300.

[0058] The vehicle front bulkhead structure 100 is located between the engine compartment and the driver's compartment of the vehicle 200, serving to isolate the engine compartment and the driver's compartment and improve the overall rigidity and collision resistance of the vehicle. The vehicle front bulkhead structure 100 includes a front inner panel structure 110, a transverse U-shaped beam structure 120, a longitudinal torsion beam structure 130, and a floor structure 140. The longitudinal torsion beam structure 130 is fixedly connected to the front inner panel structure 110, its upper end forms a cavity with the transverse U-shaped beam structure 120 and is fixedly connected, and its lower end forms a cavity with the front inner panel structure 110 and the floor structure 140 and is fixedly connected. The longitudinal torsion beam 130 uses a U-shaped structure and high-strength steel. The longitudinal torsion beam structure 130, the transverse U-shaped beam structure 120, and the floor structure 140 form a cage-like structure. When the commercial vehicle is subjected to high-intensity forward or lateral forces, part of the force on the transverse U-shaped beam structure is transferred to the floor through the longitudinal torsion beam structure.

[0059] When vehicle 200 encounters obstacle 300 in front and cannot avoid it in time, vehicle 200 is subjected to a frontal impact. The longitudinal torsion beam structure 130 of the front structure 100, together with the transverse U-shaped beam structure 120 and the floor structure 140, forms a cage-like structure. When vehicle 200 is subjected to high-intensity forward or lateral forces, part of the force on the transverse U-shaped beam structure 120 is transferred to the floor structure 140 through the longitudinal torsion beam structure. This can resist front deformation, ensure the interior space of the driver's cab, and protect the lives of the occupants.

[0060] Figure 1 Schematic diagram of the vehicle front structure provided in the embodiments of this application Figure 3 , Figure 2 Schematic diagram of the vehicle front structure provided in the embodiments of this application Figure 4 , Figure 3 Schematic diagram of the vehicle front structure provided in the embodiments of this application Figure 5 , Figure 4 Schematic diagram of the vehicle front structure provided in the embodiments of this application Figure 5 .in, Figure 2 The longitudinal torsion beam structure 130 includes an outer longitudinal torsion beam 131 and an inner longitudinal torsion beam 132. Since this figure only shows the outer longitudinal torsion beam 131, the inner longitudinal torsion beam 132 is not shown. Figure 3 As shown in the image. Figure 4 andFigure 5 are respectively front view and rear view of the vehicle front wall structure. As shown in Figure 6 , Figure 6 , Figure 4 and Figure 5 , the front wall inner plate structure, the transverse U-shaped beam structure, the longitudinal torsion beam structure and the floor structure;

[0061] The front wall inner plate structure includes a front wall inner plate body of aluminum alloy material and an electrical appliance reinforcing plate fixedly connected with the front wall inner plate body;

[0062] The transverse U-shaped beam structure includes a transverse U-shaped beam body, a wiper reinforcing plate and a framework outer plate, and the transverse U-shaped beam body is made of steel material with a strength greater than or equal to a preset strength;

[0063] The upper end of the longitudinal torsion beam structure is connected with the transverse U-shaped beam structure and forms a cavity, and the lower end of the longitudinal torsion beam structure is connected to the front wall inner plate structure and the floor structure and forms a cavity, and the longitudinal torsion beam structure is made of steel material with a strength greater than or equal to a preset strength.

[0064] Specifically, the vehicle front wall structure 100 includes a front wall inner plate structure 110, a transverse U-shaped beam structure 120, a longitudinal torsion beam structure 130 and a floor structure 140.

[0065] The front wall inner plate structure 110 includes a front wall inner plate body 111 and an electrical appliance reinforcing plate 112. The front wall inner plate body 111 is made of aluminum alloy material, and the electrical appliance reinforcing plate 112 is made of ordinary steel material, wherein the steel material used by the electrical appliance reinforcing plate 112 needs to be less than or equal to a preset strength. The front wall inner plate body 111 and the electrical appliance reinforcing plate 112 are fixedly connected by connecting adhesive and self-piercing riveting (SPR), and the electrical appliance reinforcing plate 112 is fixedly connected with the front wall inner plate body 111.

[0066] Figure 2 The vehicle front wall structure A-A cross-sectional view provided by the embodiment of the present application, wherein Figure 2 is the cross section at the A-A structure based on Figure 3 The transverse U-shaped beam structure 120 includes a transverse U-shaped beam body 121, a wiper reinforcing plate 122 and a framework outer plate 123. The transverse U-shaped beam body 121 is made of high-strength steel, that is, made of steel material with a strength greater than or equal to a preset strength. The wiper reinforcing plate 122 and the framework outer plate 123 are made of steel material with a strength less than or equal to a preset strength. As shown in Figure 2 , the positional relationship between the transverse U-shaped beam body 121 and the framework outer plate 123. The transverse U-shaped beam body 121, the wiper reinforcing plate 122 and the framework outer plate 123 are fixedly connected by self-piercing riveting SPR.

[0067] The longitudinal torsion beam structure 130 includes an outer longitudinal torsion beam 131 and an inner longitudinal torsion beam 132. The upper end of the longitudinal torsion beam structure 130 is connected to the transverse U-shaped beam structure 120 to form a cavity, and the lower end of the longitudinal torsion beam structure 130 is connected to the front inner panel structure 110 and the floor structure 140 to form a cavity, thereby increasing the transmission path of longitudinal forces and dispersing the force on the front inner panel structure 110.

[0068] The outer longitudinal torsion beam 131 is located on the outer side of the inner front panel structure 110, such as... Figure 3 As shown, the inner longitudinal torsion beam 132 is located inside the front bulkhead inner panel structure 110.

[0069] like Figure 7 As shown, the upper and lower cross-sections of the outer longitudinal torsion beam 131 are both shaped like the letter "Z," so that the upper end of the outer longitudinal torsion beam 131 connects with the transverse U-shaped beam structure 120 to form a cavity, and the lower end of the outer longitudinal torsion beam 131 forms a cavity with the front inner panel structure 110 and the floor structure 140. One side of the narrower section of the outer longitudinal torsion beam 131 is fixed to the front inner panel structure 110, while a gap is reserved on the other side. Furthermore, the outer longitudinal torsion beam 131 is located outside the front inner panel structure 110, at a certain distance from the opponent, which can increase the cross-sectional area of ​​the cavity.

[0070] like Figure 7 As shown, the upper cross-section of the inner longitudinal torsion beam 132 is L-shaped. The upper end of the inner longitudinal torsion beam 132 is fixedly connected to the front inner panel structure 110 and the transverse U-shaped beam structure 120 to form a cavity. The lower end face of the inner longitudinal torsion beam 132 is Z-shaped and is fixedly connected to the floor structure 140 to form a cavity.

[0071] The inner longitudinal torsion beam 132 is located on the inner side of the front bulkhead inner panel structure 110 and is connected to the floor structure 140 by a double-shielded welding process, directly connecting the cavity surface to the floor to improve force transmission capacity. The inner longitudinal torsion beam 132 is also provided with weight reduction holes.

[0072] This application provides a vehicle front bulkhead structure, comprising a front bulkhead inner panel structure, a transverse U-shaped beam structure, a longitudinal torsion beam structure, and a floor structure. The front bulkhead inner panel structure includes an aluminum alloy front bulkhead inner panel body and an electrical reinforcement plate fixedly connected to the front bulkhead inner panel body. The transverse U-shaped beam structure includes a transverse U-shaped beam body, a wiper reinforcement plate, and a frame outer panel. The transverse U-shaped beam body is made of steel with a strength greater than or equal to a preset strength. The upper end of the longitudinal torsion beam structure is connected to the transverse U-shaped beam structure to form a cavity, and the lower end of the longitudinal torsion beam structure is connected to the front bulkhead inner panel structure and the floor structure to form a cavity. The longitudinal torsion beam structure is made of steel with a strength greater than or equal to a preset strength. The following technical effects were achieved: the structural design of the front inner panel, made of aluminum alloy and with electrical reinforcement plates, strengthens the front inner panel structure, increases rigidity, and reduces the vibration amplitude of environmental components; the use of a U-shaped beam structure made of high-strength steel improves the rigidity and stability of the beam; and the longitudinal torsion beam structure and the transverse U-shaped beam are fixedly connected to form a cage-like structure with the main body, which greatly improves the strength of the main body and ensures the interior space of the driver's cab when the vehicle rolls over after colliding with a column, thus ensuring the safety of the occupants.

[0073] In one possible design, the longitudinal torsion beam structure includes an outer longitudinal torsion beam and an inner longitudinal torsion beam, with the outer longitudinal torsion beam located on the outside of the front bulkhead inner panel structure and the inner longitudinal torsion beam located on the inside of the front bulkhead inner panel structure.

[0074] Specifically, the longitudinal torsion beam structure 130 includes an outer longitudinal torsion beam 131 and an inner longitudinal torsion beam 132.

[0075] The outer longitudinal torsion beam 131 is located on the outer side of the front inner panel structure 110, far from the position of the opposing component, and is fixedly connected to the front inner panel structure 110 to form a cavity, such as... Figure 4 As shown.

[0076] The inner longitudinal torsion beam 132 is located inside the front inner panel structure 110 and is fixedly connected to the front inner panel structure 110 to form a cavity, such as... Figure 8 As shown.

[0077] The technical effect provided by this embodiment is that the specific location of the outer longitudinal torsion beam can increase the cross-sectional area of ​​the cavity, increase the stiffness of the front assembly, and improve the ability of the side beam to resist pressure and torsion; the inner longitudinal torsion beam can improve the deformation resistance of the front assembly of the longitudinal torsion beam.

[0078] In one possible design, the upper and lower cross sections of the outer longitudinal torsion beam are both Z-shaped. The upper end of the outer longitudinal torsion beam is connected to the transverse U-shaped beam structure to form a cavity, and the lower end of the outer longitudinal torsion beam is connected to the front inner panel structure and the floor structure to form a cavity.

[0079] There is a gap between the outer longitudinal torsion beam and the inner panel of the front wall structure at some positions.

[0080] Specifically, Figure 8 The B-B cross-sectional view of the vehicle front wall structure provided by the embodiment of the present application, Figure 4 is based on Figure 9 the B-B cross-sectional view. Figure 9 The C-C cross-sectional view of the vehicle front wall structure provided by the embodiment of the present application, Figure 4 is based on Figure 7 the B-B cross-sectional view. Figure 8 The D-D cross-sectional view of the vehicle front wall structure provided by the embodiment of the present application, Figure 9 is based on Figure 10 the D-D cross-sectional view.

[0081] The upper end section and the lower end section of the outer longitudinal torsion beam 131 are both in the shape of a U.

[0082] The upper end of the outer longitudinal torsion beam 131 is fixedly connected with the transverse U-shaped beam body 121 of the transverse U-shaped beam structure 120 and the front wall inner panel body 111, and forms a cavity, as shown in Figure 10 and Figure 5 .

[0083] The lower end of the outer longitudinal torsion beam 131 is fixedly connected with the front wall inner panel structure 110 and the floor structure 140, and forms a cavity, as shown in Figure 11 .

[0084] In addition, the side of the outer longitudinal torsion beam 131 with a narrow cross section is fixedly connected with the front wall inner panel structure 110, and a certain gap is left on the other side.

[0085] The technical effect provided by the embodiment of the present application is that a gap is left on one side of the outer longitudinal torsion beam, the electrophoresis effect in the cavity of the longitudinal torsion beam structure 130 and the front wall inner panel structure 110 is improved, the weight of the body is reduced, and the effect of weight reduction is achieved.

[0086] In a possible design, the longitudinal torsion beam structure comprises: an inner longitudinal torsion beam, the upper end cross section of the inner longitudinal torsion beam is in the shape of L, the upper end of the inner longitudinal torsion beam is connected to the front wall inner panel structure and the transverse U-shaped beam structure and forms a cavity;

[0087] The lower end cross section of the inner longitudinal torsion beam is in the shape of U, and the lower end of the inner longitudinal torsion beam is connected to the floor structure and forms a cavity.

[0088] Specifically, Figure 11 The E-E cross-sectional view of the vehicle front wall structure provided by the embodiment of the present application, Figure 5 is based on Figure 10 the E-E cross-sectional view.Figure 3 A vehicle front wall structure F-F cross-sectional view provided by the embodiment of the present application, Figure 11 is based on ​ F-F cross-sectional view.

[0089] The upper end cross section of the inner side longitudinal torsion beam 132 is L-shaped, and the upper end is connected to the front wall inner plate body 111 of the front wall inner plate structure 110 and the transverse U-shaped beam structure 120 to form a cavity, as shown in ​ .

[0090] The lower end cross section of the inner side longitudinal torsion beam 132 is H-shaped, and the cavity is formed between the inner side longitudinal torsion beam 132 and the floor structure 140, as shown in ​ and ​ .

[0091] The technical effect provided by the embodiment is that the longitudinal torsion beam structure increases the conduction path of the longitudinal force, the cavity structure is fixedly connected to make the force conduction process not attenuate, and the force of the front wall inner plate structure is dispersed, the force of the transverse U-shaped beam is dispersed, the force is transmitted to the floor structure, and the deformation resistance of the front wall assembly during rollover is improved.

[0092] In a possible design, a weight reduction hole is arranged on the inner side longitudinal torsion beam.

[0093] Specifically, a weight reduction hole is arranged on the inner side longitudinal torsion beam 132, which achieves the purpose of reducing weight.

[0094] The technical effect provided by the embodiment is that the weight reduction hole is arranged on the inner side longitudinal torsion beam, which not only reduces the weight of the body, but also ensures the electrophoresis effect inside the longitudinal torsion beam and prevents rusting during use.

[0095] In a possible design, the inner side longitudinal torsion beam and the floor structure are welded by a two-protective welding process.

[0096] Specifically, a cavity structure is formed between the inner side longitudinal torsion beam 132 and the floor structure 140, and the inner side longitudinal torsion beam 132 and the floor structure 140 are welded by a two-protective welding process.

[0097] The full name of the two-protective welding process is carbon dioxide gas shielded welding, which is a fusion gas shielded arc welding method using an electric arc as a heat source, using a continuously fed welding wire as a filler metal, and using carbon dioxide gas or other mixed gas (such as a mixture of argon and carbon dioxide) as a protective medium.

[0098] The technical effect provided by the embodiment is that the inner side longitudinal torsion beam and the floor structure are welded by a two-protective welding process, the formed cavity can be directly connected to the floor structure, the force transmission capacity is improved, and the force conducted at the pedal is dispersed.

[0099] In a possible design, the electric appliance reinforcing plate adopts a steel material with a strength less than or equal to a preset strength.

[0100] Specifically, the electric appliance reinforcing plate 112 adopts a steel material with a strength not greater than a preset strength. The preset strength can be set by a technician according to experience.

[0101] The technical effect provided by the embodiment is that the electromagnetic reinforcing plate adopts a steel material with a certain strength, and the front inner plate adopts an aluminum alloy material, which can effectively reduce the weight and save the fuel consumption of the whole vehicle.

[0102] In a possible design, the wiper reinforcing plate and the skeleton outer plate both adopt a steel material with a strength less than or equal to a preset strength.

[0103] Specifically, the wiper reinforcing plate 122 and the skeleton outer plate 123 both adopt a steel material with a strength not greater than a preset strength, and the transverse U-shaped beam body 121 adopts a high-strength steel material.

[0104] The technical effect provided by the embodiment is that the transverse U-shaped beam with a high-strength steel material transmits force in the transverse direction, improves the strength, and reduces the degree of deformation of the front wall assembly; the wiper reinforcing plate and the skeleton outer plate both adopt a certain strength rigid material, which ensures the stability and durability of the automobile front wall structure.

[0105] In a possible design, the front wall inner plate body and the electric appliance reinforcing plate are fixedly connected through an adhesive and a self-piercing rivet (SPR).

[0106] The transverse U-shaped beam body, the wiper reinforcing plate, and the skeleton outer plate are connected through the SPR.

[0107] Specifically, the front wall inner plate body 111 and the electric appliance reinforcing plate 112 are fixedly connected through a connecting adhesive and a self-piercing rivet (SPR).

[0108] The transverse U-shaped beam body 121, the wiper reinforcing plate 122, and the skeleton outer plate 123 are all fixedly connected through a self-piercing rivet (SPR).

[0109] In a second aspect, the application provides a vehicle, comprising:

[0110] A vehicle front wall structure according to the above embodiment.

[0111] Specifically, the vehicle front wall structure 100 is located at the front end of the vehicle 200, between the engine compartment position and the driver cabin position of the vehicle 200, and is an important structural component of the vehicle 200.

[0112] It plays a role in isolating the engine compartment and the passenger compartment, and has an important effect on the rigidity and collision safety of the whole vehicle 200.

[0113] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle dash structure, characterized by, include: The front inner panel structure, the transverse U-shaped beam structure, the longitudinal torsion beam structure, and the floor structure; The front inner panel structure includes an aluminum alloy front inner panel body and an electrical reinforcement plate that is fixedly connected to the front inner panel body. The transverse U-shaped beam structure includes a transverse U-shaped beam body, a wiper reinforcement plate, and an outer frame plate. The transverse U-shaped beam body is made of steel with a strength greater than or equal to a preset strength. The upper end of the longitudinal torsion beam structure is connected to the transverse U-shaped beam structure to form a cavity, and the lower end of the longitudinal torsion beam structure is connected to the front inner panel structure and the floor structure to form a cavity. The longitudinal torsion beam structure is made of steel with a strength greater than or equal to a preset strength. The longitudinal torsion beam structure includes an outer longitudinal torsion beam and an inner longitudinal torsion beam. The outer longitudinal torsion beam is located on the outer side of the front inner panel structure, and the inner longitudinal torsion beam is located on the inner side of the front inner panel structure. The upper and lower cross-sections of the outer longitudinal torsion beam are both shaped like the letter "Z"; there is a gap between the outer longitudinal torsion beam and the inner front panel structure at some locations; The upper cross-section of the inner longitudinal torsion beam is L-shaped, and the lower cross-section of the inner longitudinal torsion beam is Z-shaped.

2. The vehicle dash structure according to claim 1, characterized by The upper end of the outer longitudinal torsion beam is connected to the transverse U-shaped beam structure to form a cavity, and the lower end of the outer longitudinal torsion beam is connected to the front inner panel structure and the floor structure to form a cavity.

3. The vehicle front structure according to claim 1, characterized by The upper end of the inner longitudinal torsion beam is connected to the front inner panel structure and the transverse U-shaped beam structure to form a cavity; The lower end of the inner longitudinal torsion beam is connected to the floor structure to form a cavity.

4. The vehicle dash structure of claim 3, wherein The inner longitudinal torsion beam is provided with weight reduction holes.

5. The vehicle dash structure of claim 1, wherein The inner longitudinal torsion beam is welded to the floor structure using a double-shielded welding process.

6. The vehicle front structure according to any one of claims 1 to 5, characterized by The electrical reinforcement plate is made of steel with a strength less than or equal to a preset strength.

7. The vehicle front structure according to any one of claims 1 to 5, characterized by Both the wiper reinforcement plate and the outer frame plate are made of steel with a strength less than or equal to a preset strength.

8. The vehicle front bulkhead structure according to any one of claims 1 to 5, characterized in that, The front inner panel body and the electrical reinforcement plate are fixedly connected by adhesive and self-piercing riveting (SPR). The transverse U-shaped beam body, the wiper reinforcement plate, and the outer frame plate are connected by SPR.

9. A vehicle characterized by comprising: Includes the vehicle front bulkhead structure as described in any one of claims 1 to 8.

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