Vehicle front wall structure and vehicle

Abstract

The invention provides a vehicle front wall structure and a vehicle, and relates to the technical field of vehicle manufacturing. According to the method, a front wall inner plate structure, a transverse U-shaped beam structure, a longitudinal torsion beam structure and a floor structure are included; the front wall inner plate structure comprises a front wall inner plate body made of aluminum alloy and an electric 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 windscreen wiper reinforcing plate and a framework outer plate. The transverse U-shaped beam body is made of a steel material with the strength larger than or equal to the preset strength. The upper end of the longitudinal torsion beam structure is connected with the transverse U-shaped beam structure to form a cavity, the lower end of the longitudinal torsion beam structure is connected to the front wall inner plate structure and the floor structure to form a cavity, and the longitudinal torsion beam structure is made of a steel material with the strength larger than or equal to the preset strength. According to the vehicle front wall structure, the safety of a vehicle front wall assembly is effectively improved on the premise that weight reduction is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle manufacturing, and particularly to a vehicle front panel structure and a vehicle. Background Art

[0002] With the rapid development of the automotive industry, consumers' requirements for the safety and energy efficiency of commercial vehicles are constantly increasing, and they are also increasingly concerned about the safety of vehicles in crash tests and actual scenario applications. The front panel assembly is a part of the cab body. When the vehicle hits a hard object or a pillar or rolls over, the ability of the front panel assembly to resist deformation is an important guarantee for the life safety of the driver and passengers.

[0003] Currently, most commercial vehicle front panel assemblies adopt reverse design and are adaptively modified according to specific usage environments. This design usually includes a front panel inner structure and a transverse U-beam structure, and the latter is responsible for the transmission of transverse forces. However, in the face of high-intensity frontal or lateral impacts, the strength of the transverse U-beam structure is insufficient, which is likely to cause deformation of the front panel assembly, thereby compressing the internal space of the cab and seriously threatening the safety of the driver and passengers. In addition, a large-scale use of aluminum alloy materials can achieve weight reduction, but the safety is relatively low. Summary of the Invention

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

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

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

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

[0008] The transverse U-shaped beam structure includes a transverse U-shaped beam body, a wiper reinforcement plate, and a skeleton outer plate. The transverse U-shaped 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-shaped beam structure to form a cavity, and the lower end of the longitudinal torsion beam structure is connected to the front panel inner structure and the floor structure to form a cavity. The longitudinal torsion beam structure is made of a steel material with a strength greater than or equal to a preset strength.

[0010] In a possible design, the longitudinal torsion beam structure includes: an outer longitudinal torsion beam and an inner longitudinal torsion beam. The outer longitudinal torsion beam is located outside the front panel inner structure, and the inner longitudinal torsion beam is located inside the front panel inner structure.

[0011] In a possible design, the upper cross-section and the lower cross-section of the outer longitudinal torsion beam are both in a shape like the Chinese character 'ji', 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 inner front panel structure and the floor structure to form a cavity;

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

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

[0014] The lower cross-section of the inner longitudinal torsion beam is in a shape like the Chinese character 'ji', and the lower end of the inner longitudinal torsion beam is connected to the floor structure to form a cavity.

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

[0016] In a possible design, the inner longitudinal torsion beam and the floor structure are welded and connected by the CO2 shielded arc welding process.

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

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

[0019] In a possible design, the inner front panel body and the electrical reinforcement plate are fixedly connected by an adhesive and self-piercing riveting SPR;

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

[0021] In a second aspect, the present application provides a vehicle, including:

[0022] A vehicle front panel structure as described in the invention content of the first aspect.

[0023] A vehicle front panel structure and a vehicle provided by the present application, including a front panel inner structure, a transverse U-shaped beam structure, a longitudinal torsion beam structure, and a floor structure; the front panel inner structure includes a front panel inner body made of aluminum alloy material and an electrical reinforcement plate fixedly connected to the front panel inner body; the transverse U-shaped beam structure includes a transverse U-shaped beam body, a wiper reinforcement plate, and an outer frame plate, and the transverse U-shaped beam body is made of 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 to form a cavity, and the lower end of the longitudinal torsion beam structure is connected to the front panel inner structure and the floor structure to form a cavity, and the longitudinal torsion beam structure is made of steel material with a strength greater than or equal to a preset strength. The following technical effects are achieved: through the structural design of the front panel inner structure of the aluminum alloy material and the electrical reinforcement plate, the front panel inner structure can be strengthened, the stiffness can be improved, and the vibration amplitude of the environmental components can be reduced; by using the crossbeam U-shaped beam structure of high-strength steel material, the stiffness and stability of the crossbeam are improved; the longitudinal torsion beam structure and the transverse U-shaped beam are fixedly connected to form a cage structure with the body, so that the strength of the body is greatly improved, the internal space of the cab is ensured when the vehicle hits a column and rolls over, and the safety of the driver and passengers is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic view of the scenario of the vehicle front panel structure provided by the embodiment of the present application;

[0026] Figure 2 It is a schematic diagram of the vehicle front panel structure provided by the embodiment of the present application Figure 1 ;

[0027] Figure 3 It is a schematic diagram of the vehicle front panel structure provided by the embodiment of the present application Figure 2 ;

[0028] Figure 4 It is a schematic diagram of the vehicle front panel structure provided by the embodiment of the present application Figure 3 ;

[0029] Figure 5 It is a schematic diagram of the vehicle front panel structure provided by the embodiment of the present application Figure 4 ;

[0030] Figure 6 It is a sectional view taken along line A-A of the vehicle front panel structure provided by the embodiment of the present application;

[0031] Figure 7 The B-B sectional view of the vehicle front panel structure provided by the embodiment of the present application;

[0032] Figure 8 The C-C sectional view of the vehicle front panel structure provided by the embodiment of the present application;

[0033] Figure 9 The D-D sectional view of the vehicle front panel structure provided by the embodiment of the present application;

[0034] Figure 10 The E-E sectional view of the vehicle front panel structure provided by the embodiment of the present application;

[0035] Figure 11 The F-F sectional view of the vehicle front panel structure provided by the embodiment of the present application.

[0036] Reference numerals:

[0037] 100 - Vehicle front panel structure; 200 - Vehicle; 300 - Obstacle;

[0038] 110 - Inner front panel structure; 120 - Transverse U-shaped beam structure; 130 - Longitudinal torsion beam structure; 140 - Floor structure; 111 - Inner front panel body; 112 - Electrical reinforcement plate; 121 - Transverse U-shaped beam body; 122 - Wiper reinforcement plate; 123 - Skeleton outer plate; 131 - Outer longitudinal torsion beam; 132 - Inner longitudinal torsion beam. Detailed implementation manners

[0039] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0040] In the embodiments of the present application, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and execution order, and "first", "second", etc. do not necessarily mean different. It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner. In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more.

[0041] It should be noted that "when... " in the embodiments of the present application can be at the instant when a certain situation occurs, or within a period of time after a certain situation occurs. The embodiments of the present application do not make specific limitations in this regard.

[0042] To facilitate a clear description of 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 end assembly: The vehicle front end assembly is located at the front of the vehicle, specifically 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 aspects such as the rigidity and collision safety of the whole vehicle. The front end assembly usually includes a support structure for installing components such as the instrument panel, steering column, and pedals.

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

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

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

[0047] Skeleton outer panel: The skeleton outer panels of a vehicle generally refer to the metal plates covering the exterior of the vehicle body, which constitute the main part of the vehicle's appearance. These outer panels not only play an aesthetic role but also have an important impact on the overall rigidity, safety, and durability of the vehicle body.

[0048] Counterpart parts: In the field of vehicle manufacturing and maintenance, counterpart parts usually refer to parts that appear in pairs and work in cooperation with each other. These parts may have similar or complementary functions, and they work together to achieve specific mechanical functions or system operations.

[0049] With the rapid development of the automotive industry, consumers' attention to vehicle safety has been increasing day by day. Nowadays, a vehicle is not only a means of transportation but also an important barrier to ensure the safety of the driver and passengers. The progress of modern technology has not only greatly improved the performance and comfort of automobiles but also prompted manufacturers to pay more attention to safety in the design and manufacturing process.

[0050] Whether it is active safety systems (such as automatic emergency braking, lane keeping assist, etc.) or passive safety systems (such as high-strength body structures, multi-airbag configurations, etc.), they are constantly improving the vehicle's ability to handle various complex road conditions and emergencies.

[0051] The front panel assembly of a vehicle is a crucial part of the vehicle body structure, and it plays a key role in enhancing the overall safety of the vehicle. The front panel assembly not only affects the vehicle's performance in a frontal collision but also plays an important role in protecting the integrity of the passenger compartment and the safety of the driver and passengers.

[0052] In existing commercial vehicles, the front panel assembly of the vehicle adopts reverse design, changes the adaptation device according to the environment, installs environmental components on the inner panel structure of the front panel, and the transverse U-shaped beam structure transmits force horizontally. When facing high-intensity frontal or side impacts, the structural strength of the transverse U-shaped beam is insufficient, resulting in the deformation of the vehicle's front panel assembly, squeezing the internal space of the cab, and threatening the lives of the driver and passengers.

[0053] Under the concept of weight reduction, most vehicles use a large area of aluminum alloy materials as the materials for the front panel assembly of the vehicle. Although this material achieves effective weight reduction, it is difficult to achieve collision safety when using a large range of aluminum alloy materials.

[0054] Therefore, on the premise of achieving effective weight reduction, it is an urgent problem to effectively improve the safety of the vehicle's front panel assembly.

[0055] Based on this, the embodiments of the present application provide a vehicle front panel structure and a vehicle, which can be used in the field of vehicle manufacturing technology, aiming to solve the above technical problems of the existing technology.

[0056] Figure 1 This is a schematic diagram of the scenario of the vehicle front panel structure provided by the embodiments of the present application. It should be noted thatFigure 1 The figure shown is only an example of the scenario where the embodiments of the present application can be applied, to help those skilled in the art understand the technical content of the present application, but it does not mean that the embodiments of the present application cannot be used in other devices, systems, environments or scenarios.

[0057] As Figure 1 shown, a schematic diagram of a vehicle front panel structure scenario is shown, including: a vehicle front panel structure 100, a vehicle 200, and an obstacle 300.

[0058] The vehicle front panel structure 100 is located between the engine compartment and the cockpit of the vehicle 200, plays a role in isolating the engine compartment and the cockpit, and improves the stiffness and crashworthiness of the whole vehicle. The vehicle front panel structure 100 includes an inner front 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 inner front panel structure 110, forms a cavity with the transverse U-shaped beam structure 120 at the upper end and is fixedly connected, and forms a cavity with the inner front panel structure 110 and the floor structure 140 at the lower end and is fixedly connected. The longitudinal torsion beam 130 uses a U-shaped structure and high-strength steel material. The longitudinal torsion beam structure 130 forms a cage-like structure with the transverse U-shaped beam structure 120 and the floor structure 140. When the commercial vehicle is subjected to high-strength forward or lateral forces, part of the force received by the transverse U-shaped beam structure is transmitted to the floor through the longitudinal torsion beam structure.

[0059] When the vehicle 200 encounters an obstacle 300 in front and cannot avoid it in time, the whole vehicle of the vehicle 200 is impacted head-on. The longitudinal torsion beam structure 130 of the vehicle front panel structure 100 forms a cage-like structure with the transverse U-shaped beam structure 120 and the floor structure 140. When the vehicle 200 is subjected to high-strength forward or lateral forces, part of the force received by the transverse U-shaped beam structure 120 is transmitted to the floor structure 140 through the longitudinal torsion beam structure, which can resist the deformation of the front panel and ensure the internal space of the cab to protect the lives and safety of the driver and passengers.

[0060] Figure 2 Schematic diagram of the vehicle front panel structure provided by the embodiments of the present application Figure 1 , Figure 3 Schematic diagram of the vehicle front panel structure provided by the embodiments of the present application Figure 2 , Figure 4 Schematic diagram of the vehicle front panel structure provided by the embodiments of the present application Figure 3 , Figure 5 Schematic diagram of the vehicle front panel structure provided by the embodiments of the present application Figure 4 . Among them, Figure 2 the longitudinal torsion beam structure 130 in includes an outer longitudinal torsion beam 131 and an inner longitudinal torsion beam 132. Since only the outer longitudinal torsion beam 131 can be shown in this figure, the inner longitudinal torsion beam 132 is shown in Figure 3 . Figure 4 andFigure 5 are the front view and the rear view of the vehicle front end structure respectively. As Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, the inner front panel structure, the transverse U-shaped beam structure, the longitudinal torsion beam structure and the floor structure;

[0061] The inner front panel structure includes an inner front panel body made of aluminum alloy material and an electrical reinforcement plate fixedly connected to the inner front panel body;

[0062] The transverse U-shaped beam structure includes a transverse U-shaped beam body, a wiper reinforcement plate and an outer frame panel. 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 to the transverse U-shaped beam structure to form a cavity. The lower end of the longitudinal torsion beam structure is connected to the inner front panel structure and the floor structure to form a cavity. 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 end structure 100 includes an inner front panel structure 110, a transverse U-shaped beam structure 120, a longitudinal torsion beam structure 130 and a floor structure 140.

[0065] The inner front panel structure 110 includes an inner front panel body 111 and an electrical reinforcement plate 112. The inner front panel body 111 is made of aluminum alloy material, and the electrical reinforcement plate 112 is made of ordinary steel material. Among them, the steel material used for the electrical reinforcement plate 112 needs to be less than or equal to the preset strength. The inner front panel body 111 and the electrical reinforcement plate 112 are fixedly connected by connecting adhesives and self-piercing riveting (Self-Piercing Riveting, abbreviated as SPR), and the electrical reinforcement plate 112 is fixedly connected to the inner front panel body 111.

[0066] Figure 6 is the A-A sectional view of the vehicle front end structure provided by the embodiment of the present application, in which Figure 6 is based on Figure 4 the section at the A-A structure. The transverse U-shaped beam structure 120 includes a transverse U-shaped beam body 121, a wiper reinforcement plate 122 and an outer frame panel 123. The transverse U-shaped beam body 121 is all made of high-strength steel, that is, steel material with a strength greater than or equal to a preset strength. The wiper reinforcement plate 122 and the outer frame panel 123 are both made of steel material with a strength less than or equal to a preset strength. As Figure 5 shown, the positional relationship between the transverse U-shaped beam body 121 and the outer frame panel 123. The transverse U-shaped beam body 121, the wiper reinforcement plate 122 and the outer frame panel 123 are fixedly connected by the method of 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 inner front panel structure 110 and the floor structure 140 to form a cavity, so as to increase the conduction path of the longitudinal force and disperse the force on the inner front panel structure 110.

[0068] The outer longitudinal torsion beam 131 is located on the outer side of the inner front panel structure 110, as Figure 2 shown, and the inner longitudinal torsion beam 132 is located on the inner side of the inner front panel structure 110.

[0069] As Figure 2 shown, the cross-sections of the upper end and the lower end of the outer longitudinal torsion beam 131 are both in a C shape, so that the upper end of the outer longitudinal torsion beam 131 is connected to 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 inner front panel structure 110 and the floor structure 140. One side of the narrower part of the cross-section of the outer longitudinal torsion beam 131 is fixed to the inner front panel structure 110, and there is a gap on the other side. Moreover, the outer longitudinal torsion beam 131 is located outside the inner front panel structure 110 and has a certain position from the opposing part, which can increase the cross-sectional area of the cavity.

[0070] As Figure 3 shown, the cross-section of the upper end of the inner longitudinal torsion beam 132 is in an L shape, and the upper end of the inner longitudinal torsion beam 132 is fixedly connected to the inner front panel structure 110 and the transverse U-shaped beam structure 120 to form a cavity. The lower end surface of the inner longitudinal torsion beam 132 is in a C shape and is fixedly connected to the floor structure 140 to form a cavity.

[0071] The inner longitudinal torsion beam 132 is located at the inner side of the inner front panel structure 110. The gas shielded arc welding process is adopted between the inner longitudinal torsion beam 132 and the floor structure 140 to directly connect the cavity surface to the floor, improving the force transmission capacity. The inner longitudinal torsion beam 132 is also provided with weight-reducing holes.

[0072] A vehicle front panel structure provided by the present application includes an inner front panel structure, a transverse U-shaped beam structure, a longitudinal torsion beam structure, and a floor structure; the inner front panel structure includes an inner front panel body made of aluminum alloy material and an electrical reinforcement plate fixedly connected to the inner front panel body; the transverse U-shaped beam structure includes a transverse U-shaped beam body, a wiper reinforcement plate, and an outer frame plate, and the transverse U-shaped beam body is made of 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 to form a cavity, and the lower end of the longitudinal torsion beam structure is connected to the inner front panel structure and the floor structure to form a cavity, and the longitudinal torsion beam structure is made of steel material with a strength greater than or equal to a preset strength. The following technical effects are achieved: through the structural design of the inner front panel structure of the inner front panel made of aluminum alloy material and the electrical reinforcement plate, the inner front panel structure can be strengthened, the stiffness can be improved, and the vibration amplitude of environmental components can be reduced; the transverse U-shaped beam structure made of steel material with higher strength improves the stiffness and stability of the cross beam; the longitudinal torsion beam structure and the transverse U-shaped beam are fixedly connected to form a cage-like structure with the body, so that the strength of the body and the strength are greatly improved, the internal space of the cab is guaranteed when the vehicle hits a column and rolls over, and the life safety of the driver and passengers is guaranteed.

[0073] In a possible design, the longitudinal torsion beam structure includes: an outer longitudinal torsion beam and an inner longitudinal torsion beam, the outer longitudinal torsion beam is located outside the inner front panel structure, and the inner longitudinal torsion beam is located inside the inner front 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] Among them, the outer longitudinal torsion beam 131 is located outside the inner front panel structure 110, far from the position of the opposing part, and is fixedly connected to the inner front panel structure 110 to form a cavity, as Figure 2 shown.

[0076] The inner longitudinal torsion beam 132 is located inside the inner front panel structure 110 and is fixedly connected to the inner front panel structure 110 to form a cavity, as Figure 3 shown.

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

[0078] In a possible design, the upper cross-section and the lower cross-section of the outer longitudinal torsion beam are both in a shape of a capital "J", 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 inner front panel structure and the floor structure to form a cavity;

[0079] There are gaps at some positions between the outer longitudinal torsion beam and the inner panel structure of the front end enclosure.

[0080] Specifically, Figure 7 This is the B-B sectional view of the vehicle front end enclosure structure provided by the embodiment of the present application. Figure 7 It is based on Figure 4 the B-B sectional schematic. Figure 8 This is the C-C sectional view of the vehicle front end enclosure structure provided by the embodiment of the present application. Figure 8 It is based on Figure 4 the B-B sectional schematic. Figure 9 This is the D-D sectional view of the vehicle front end enclosure structure provided by the embodiment of the present application. Figure 9 It is based on Figure 4 the D-D sectional schematic.

[0081] The upper and lower cross-sections of the outer longitudinal torsion beam 131 are both in a C shape.

[0082] The upper end of the outer longitudinal torsion beam 131 is fixedly connected to the transverse U-shaped beam body 121 of the transverse U-shaped beam structure 120 and the inner panel body 111 of the front end enclosure, and a cavity is formed, as Figure 7 and Figure 8 shown.

[0083] The lower end of the outer longitudinal torsion beam 131 is fixedly connected to the front end enclosure structure 110 and the floor structure 140 to form a cavity, as Figure 9 shown.

[0084] Moreover, the narrower side of the cross-section of the outer longitudinal torsion beam 131 is fixedly connected to the front end enclosure structure 110, and there is a certain gap on one side.

[0085] The technical effect provided by the embodiment of the present application is that there is a gap on one side of the outer longitudinal torsion beam, which improves the electrocoating effect in the cavities of the longitudinal torsion beam structure 130 and the front end enclosure structure 110, reduces the weight of the body, and achieves the effect of weight reduction.

[0086] In a possible design, the longitudinal torsion beam structure includes: an inner longitudinal torsion beam. The upper cross-section of the inner longitudinal torsion beam is in an L shape. The upper end of the inner longitudinal torsion beam is connected to the front end enclosure structure and the transverse U-shaped beam structure to form a cavity.

[0087] The lower cross-section of the inner longitudinal torsion beam is in a C shape. The lower end of the inner longitudinal torsion beam is connected to the floor structure to form a cavity.

[0088] Specifically, Figure 10 This is the E-E sectional view of the vehicle front end enclosure structure provided by the embodiment of the present application. Figure 10 It is based on Figure 5 the E-E sectional schematic.Figure 11 The F-F sectional view of the vehicle front panel structure provided by the embodiment of the present application Figure 11 is based on Figure 5 the F-F sectional schematic diagram

[0089] The upper cross-section of the inner longitudinal torsion beam 132 presents an L shape. The upper end forms a cavity with the front panel inner plate body 111 of the front panel inner plate structure 110 and the transverse U-shaped beam structure 120 and is fixedly connected, as Figure 10 shown

[0090] The lower cross-section of the inner longitudinal torsion beam 132 is in a U shape, forms a cavity with the floor structure 140 and is fixedly connected, as Figure 3 and Figure 11 shown

[0091] The technical effect provided by this embodiment is that the longitudinal torsion beam structure increases the conduction path of the longitudinal force. The fixedly connected cavity structure enables the force conduction process not to decay, disperses the force on the front panel inner plate structure, disperses the force on the transverse U-shaped beam, conducts the force to the floor structure, and improves the anti-deformation ability of the front panel assembly during rollover

[0092] In a possible design, weight-reducing holes are provided on the inner longitudinal torsion beam

[0093] Specifically, weight-reducing holes are provided on the inner longitudinal torsion beam 132 to achieve the purpose of reducing weight

[0094] The technical effect provided by this embodiment is that weight-reducing holes are provided on the inner longitudinal torsion beam, which not only reduces the weight of the body but also ensures the electrocoating effect inside the longitudinal torsion beam and prevents rusting during use

[0095] In a possible design, the inner longitudinal torsion beam and the floor structure are welded and connected by the CO2 shielded welding process

[0096] Specifically, a cavity structure is formed between the inner longitudinal torsion beam 132 and the floor structure 140, and the inner longitudinal torsion beam 132 and the floor structure 140 are welded and connected by the CO2 shielded welding process

[0097] The full name of the CO2 shielded welding process is carbon dioxide gas shielded welding. It is a gas metal arc welding method that uses an electric arc as the heat source, a continuously fed welding wire as the filler metal, and carbon dioxide gas or other mixed gases (such as a mixture of argon and carbon dioxide) as the shielding medium

[0098] The technical effect provided by this embodiment is that by using the CO2 shielded welding process to weld the inner longitudinal torsion beam and the floor structure, the formed cavity can be directly connected to the floor structure, improving the force transmission ability and dispersing the force conducted at the pedal

[0099] In a possible design, the electrical appliance reinforcement plate is made of a steel material with a strength less than or equal to a preset strength.

[0100] Specifically, the material used for the electrical appliance reinforcement plate 112 is a steel material with a strength not greater than the preset strength. Among them, the preset strength can be set by technicians based on experience.

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

[0102] In a possible design, both the wiper reinforcement plate and the outer panel of the frame are made of a steel material with a strength less than or equal to a preset strength.

[0103] Specifically, both the wiper reinforcement plate 122 and the outer panel of the frame 123 are made of a steel material with a strength not greater than the preset strength, while the transverse U-shaped beam body 121 is made of a high-strength steel material.

[0104] The technical effect provided by this embodiment is that the transverse U-shaped beam made of high-strength steel material transmits force horizontally, improves the strength, and reduces the degree of deformation of the front-end assembly; both the wiper reinforcement plate and the outer panel of the frame are made of a steel material with a certain strength, ensuring the stability and durability of the vehicle front-end structure.

[0105] In a possible design, the front inner panel body and the electrical appliance reinforcement plate are fixedly connected by an adhesive and self-piercing riveting SPR;

[0106] The transverse U-shaped beam body, the wiper reinforcement plate and the outer panel of the frame are connected by SPR.

[0107] Specifically, between the front inner panel body 111 and the electrical appliance reinforcement plate 112, they are fixedly connected by a connecting adhesive and self-piercing riveting SPR.

[0108] Between the transverse U-shaped beam body 121, the wiper reinforcement plate 122, and the outer panel of the frame 123, they are all fixedly connected by the method of self-piercing riveting SPR.

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

[0110] A vehicle front-end structure as described in the above embodiment.

[0111] Specifically, the vehicle front-end structure 100 is located at the front end of the vehicle 200, between the engine compartment position and the cockpit 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 role in the rigidity and collision safety of the entire vehicle 200.

[0113] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application.

Claims

1. A vehicle front wall structure, characterized in that: 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 comprises a front inner panel body made of aluminum alloy and an electrical reinforcement plate 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 a frame 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-beam structure to form a cavity, 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, and the longitudinal torsion beam structure is made of steel material with a strength greater than or equal to a preset strength.

2. The vehicle front wall structure according to claim 1, characterized in that: 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.

3. The vehicle front wall structure according to claim 2, characterized in that: The cross-sections of the upper end and the lower end of the outer longitudinal torsion beam are both in the shape of a "X", 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; There is a gap at some positions between the outer longitudinal torsion beam and the front inner panel structure.

4. The vehicle front wall structure according to claim 2, characterized in that: The longitudinal torsion beam structure comprises: an inner longitudinal torsion beam, the upper end cross section of the inner longitudinal torsion beam is L-shaped, 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 to form a cavity; The cross section of the lower end of the inner longitudinal torsion beam is in the shape of a "X", and the lower end of the inner longitudinal torsion beam is connected to the floor structure to form a cavity.

5. The vehicle front wall structure according to claim 4, characterized in that: The inner longitudinal torsion beam is provided with weight-reducing holes.

6. The vehicle front wall structure according to claim 2, characterized in that: The inner longitudinal torsion beam is welded to the floor structure through a two-way welding process.

7. The vehicle front wall structure according to any one of claims 1 to 6, characterized in that: The electrical appliance reinforcement plate is made of steel material with a strength less than or equal to a preset strength.

8. The vehicle front wall structure according to any one of claims 1 to 6, characterized in that: The wiper reinforcement plate and the frame outer plate are both made of steel material with a strength less than or equal to a preset strength.

9. The vehicle front wall structure according to any one of claims 1 to 6, 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 frame outer plate are connected by SPR.

10. A vehicle, characterized in that: The vehicle front wall structure comprises the vehicle front wall structure as claimed in any one of claims 1 to 9.

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