Vehicle body front frame and vehicle

Abstract

The application discloses a vehicle body front frame and a vehicle. The vehicle body front frame comprises a connecting beam, a cabin side beam, a cabin longitudinal beam, a front wall lower cross beam and a vehicle body A column. The front part of the cabin side beam is connected with the upper part of the connecting beam, and the rear part of the cabin side beam is connected with the upper part of the vehicle body A column. The front part of the cabin longitudinal beam is connected with the lower part of the connecting beam. The end part of the front wall lower cross beam is connected with the vehicle body A column, and the rear part of the cabin longitudinal beam is connected with the front wall lower cross beam. The vehicle body front frame of the embodiment of the application has multiple collision force conduction paths by arranging the connecting beam, the cabin side beam, the cabin longitudinal beam, the front wall lower cross beam and the vehicle body A column, thereby improving the force transition and conduction effect, ensuring the structural strength of the vehicle body front frame, improving the driving safety, and having simple structure, better use effect and wider application range.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and in particular to a front body frame and a vehicle having the front body frame. Background Technology

[0002] As people's living standards improve, automobiles have become an indispensable means of transportation. Vehicle safety has become a crucial factor in car selection. When a vehicle is impacted, the impact force is transmitted and dispersed through the internal longitudinal beam structure of the engine compartment to prevent severe damage and injury to passengers. Existing longitudinal beam force transmission structures often transfer the impact force to the sill beam via a torsion box. This torsion box is formed by welding together various sheet metal parts, resulting in complex overlapping layers. The sheet metal is mostly thin, with weak rigidity and poor force transmission. Furthermore, the linear force transmission design leads to high stress and severe damage after a collision, resulting in poor safety performance and room for improvement. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this invention is to propose a front vehicle frame that is simple in structure, can effectively transmit collision forces, and improve driving safety.

[0004] According to an embodiment of the present invention, a front frame of a vehicle body includes: a connecting beam; a cabin side beam, the front part of which is connected to the upper part of the connecting beam, and the rear part of which is connected to the upper part of the A-pillar of the vehicle body; a cabin longitudinal beam, the front part of which is connected to the lower part of the connecting beam; and a front lower crossbeam, the end of which is connected to the A-pillar of the vehicle body, and the rear part of which is connected to the front lower crossbeam.

[0005] According to an embodiment of the present invention, the front frame of the vehicle body, by setting longitudinal beam reinforcing plates and longitudinal beam support plates, and by setting connecting beams, engine compartment side beams, engine compartment longitudinal beams, front bulkhead lower crossbeams and vehicle body A-pillars, provides multiple transmission paths for collision forces, thereby improving the force transition and transmission effect, ensuring the structural strength of the front frame of the vehicle body, improving driving safety, and having a simple structure, better performance, and wider applicability.

[0006] According to some embodiments of the present invention, the front frame of the vehicle body includes a side beam of the engine compartment, which includes a front section and a rear section. The front part of the front section of the side beam is connected to the upper part of the connecting beam, the rear part of the front section of the side beam is connected to the front part of the rear section of the side beam, and the rear part of the rear section of the side beam is connected to the upper part of the A-pillar of the vehicle body. The front section of the side beam is configured to extend outward from front to back, and the rear section of the side beam is parallel and spaced apart from the longitudinal beam of the engine compartment.

[0007] According to some embodiments of the present invention, the front frame of the vehicle body further includes an upper force transmission beam, which is configured to extend from front to back and downward at an angle, the front part of the upper force transmission beam is connected to the rear section of the side beam, and the rear part of the upper force transmission beam is connected to the A-pillar of the vehicle body.

[0008] According to some embodiments of the present invention, the front frame of the vehicle body includes a longitudinal beam body and a longitudinal beam connecting seat. The front end of the longitudinal beam body is connected to the connecting beam, the rear end of the longitudinal beam body is connected to the front side of the lower crossbeam of the front bulkhead, the longitudinal beam connecting seat is connected to the lower rear end of the longitudinal beam body, and the longitudinal beam connecting seat is connected to the front crossbeam of the floor.

[0009] According to some embodiments of the present invention, the front frame of the vehicle body further includes an inner force transmission beam and an outer force transmission beam, wherein the inner force transmission beam is connected to the inner side of the longitudinal beam body and the lower crossbeam of the front bulkhead, respectively, and the outer force transmission beam is connected to the outer side of the longitudinal beam body and the lower crossbeam of the front bulkhead, respectively.

[0010] According to some embodiments of the present invention, the inner force transmission beam and the outer force transmission beam are both configured to extend obliquely from front to back in a direction away from the longitudinal beam body, and the rear ends of the inner force transmission beam and the outer force transmission beam are spaced apart from the longitudinal beam body.

[0011] According to some embodiments of the present invention, the front frame of the vehicle body further includes a bottom force transmission beam, which is connected to the outer side of the longitudinal beam connecting seat, and the outer end of the bottom force transmission beam is connected to the sill beam.

[0012] According to some embodiments of the present invention, the front frame of the vehicle body is formed by extrusion of profiles, the longitudinal beam body has a hollow cavity, and the hollow cavity is provided with reinforcing ribs, which divide the hollow cavity into multiple sub-cavities.

[0013] According to some embodiments of the present invention, in the front frame of the vehicle body, a plurality of the sub-cavities are spaced apart in the vertical direction, and the number of sub-cavities in the front section of the longitudinal beam body is less than the number of sub-cavities in the rear section of the longitudinal beam body.

[0014] According to some embodiments of the present invention, the front frame of the vehicle body further includes a connector disposed on the upper part of the A-pillar of the vehicle body, and the connector is used to connect with the upper side beam of the A-pillar, the connector being a cast aluminum part.

[0015] According to some embodiments of the present invention, at least one of the connecting beam, the engine compartment side beam, the engine compartment longitudinal beam, and the front bulkhead lower crossbeam is formed by profile extrusion.

[0016] The present invention also proposes a vehicle.

[0017] The vehicle according to an embodiment of the present invention is provided with a front body frame as described in any of the above claims.

[0018] The vehicle and the aforementioned front body frame have the same advantages over the prior art, which will not be repeated here.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of the front frame of the vehicle body according to an embodiment of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the front frame of the vehicle body according to an embodiment of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the structure of the front frame of the vehicle body according to an embodiment of the present invention. Figure 3 .

[0024] Figure label:

[0025] Front frame of the vehicle body 100,

[0026] Connecting beam 1, engine compartment side beam 2, front section of side beam 21, rear section of side beam 22, body A-pillar 3, engine compartment longitudinal beam 4, longitudinal beam body 41, longitudinal beam connecting seat 42, floor front crossbeam 5, front bulkhead lower crossbeam 6, upper force transmission beam 7, inner force transmission beam 8, outer force transmission beam 9, bottom force transmission beam 10, sill beam 11, connector 12, upper side beam of A-pillar 13, connecting longitudinal beam 14. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following is for reference. Figures 1-3 The front frame 100 of the vehicle body according to an embodiment of the present invention has a simple structure and can effectively transmit collision force, thereby improving driving safety.

[0029] like Figures 1-3As shown, the front frame 100 of the vehicle body according to an embodiment of the present invention includes: a connecting beam 1, a cabin side beam 2, a cabin longitudinal beam 4, and a front bulkhead lower crossbeam 6.

[0030] The front part of the cabin side beam 2 is connected to the upper part of the connecting beam 1, and the rear part of the cabin side beam 2 is connected to the upper part of the body A-pillar 3. The front part of the cabin longitudinal beam 4 is connected to the lower part of the connecting beam 1. The end of the front lower crossbeam 6 is connected to the body A-pillar 3, and the rear part of the cabin longitudinal beam 4 is connected to the front lower crossbeam 6.

[0031] The front frame of the vehicle body is located at the front of the vehicle body. It has a storage space inside, which can be used to place components such as the vehicle engine. The front frame is the main energy-absorbing component when the front of the vehicle is involved in a collision. Its main function is to reduce the deformation of the vehicle structure and the injury to the occupants in the passenger compartment when two vehicles collide head-on at high speeds, and to distribute the force evenly during the collision, thereby improving driving safety.

[0032] Specifically, the connecting beam 1 is configured as a column structure, which is set vertically along the vehicle body. The upper end of the connecting beam 1 is connected to the engine compartment side beam 2, which is also configured as a column structure, and is set longitudinally along the vehicle body. The lower end of the connecting beam 1 is connected to the engine compartment longitudinal beam 4, which is also configured as a column structure, and is set longitudinally along the vehicle body. The other end of the engine compartment side beam 2 is connected to the vehicle body A-pillar 3, which is also configured as a column structure, and is set vertically along the vehicle body. The other end of the engine compartment longitudinal beam 4 is connected to the front side of the front lower crossbeam 6, which is set transversely along the vehicle body. Both ends of the front lower crossbeam 6 are connected to the inner side of the vehicle body A-pillar 3. There are two connecting beams, engine compartment side beam 2, engine compartment longitudinal beam 4, and vehicle body A-pillar 3, which are symmetrically arranged along the longitudinal direction of the vehicle. The connecting beam 1 is perpendicular to the engine compartment longitudinal beam 4, the engine compartment longitudinal beam 4 is perpendicular to the front lower crossbeam 6, the front lower crossbeam 6 is perpendicular to the vehicle body A-pillar 3, and the rear section of the engine compartment side beam 2 is perpendicular to the vehicle body A-pillar 3.

[0033] Furthermore, when a frontal collision occurs, the engine compartment longitudinal beam 4 is the first to experience the impact force. The two engine compartment longitudinal beams 4 are symmetrically arranged, allowing the impact force to be evenly distributed along the longitudinal direction of the vehicle body. During this transmission, a portion of the force can be further transmitted through the engine compartment longitudinal beam 4 to the lower front crossbeam 6, while another portion can be transmitted upwards to the connecting beam 1. From there, the force is transmitted vertically along the vehicle body to the engine compartment side beam 2, and then through the side beam 2 to the A-pillar 3. The impact force transmitted to the A-pillar 3 can then be transmitted downwards to the lower front crossbeam 6, thus allowing the impact force to be transmitted laterally along the vehicle body. The design allows for multiple transmission paths of the collision force, thereby improving the transition and transmission effect of the force, ensuring the structural strength of the front frame 100 of the vehicle body. Furthermore, during the transmission of the collision force, its transmission direction changes multiple times to weaken the effect of the collision force, further improving the structural strength of the front frame 100 of the vehicle body and enhancing driving safety. In addition, the connecting beam 1, the engine compartment side beam 2, the engine compartment longitudinal beam 4, the body A-pillar 3, and the front lower crossbeam 6 are all designed as columnar structures, which simplifies the structure of the front frame 100 of the vehicle body and saves manufacturing costs.

[0034] According to an embodiment of the present invention, the front frame 100 of the vehicle body, by setting up a connecting beam 1, a side beam 2 of the engine compartment, a longitudinal beam 4 of the engine compartment, a lower crossbeam 6 of the front bulkhead, and a body A-pillar 3, enables multiple transmission paths for collision forces, thereby improving the transition and transmission effect of forces, ensuring the structural strength of the front frame 100 of the vehicle body, improving driving safety, and having a simple structure, better performance, and wider applicability.

[0035] In some embodiments, such as Figures 1-3 As shown, the cabin side beam 2 includes a front section 21 and a rear section 22. The front part of the front section 21 is connected to the upper part of the connecting beam 1, the rear part of the front section 21 is connected to the front part of the rear section 22, and the rear part of the rear section 22 is connected to the upper part of the A-pillar 3 of the vehicle body. The front section 21 is constructed to extend outward from front to back, and the rear section 22 is parallel and spaced apart from the cabin longitudinal beam 4.

[0036] Specifically, when a frontal collision occurs, the longitudinal beam 4 of the engine compartment is the first to be subjected to the impact force. During the transmission process, part of the force can be transmitted upward to the connecting beam 1, and then transmitted vertically along the vehicle body to the front section 21 of the side beam 2 of the engine compartment. The force is then transmitted from the front section 21 to the rear section 22 of the side beam 2 of the engine compartment, and then to the A-pillar 3 of the vehicle body. Finally, the impact force is transmitted downward to the lower crossbeam 6 of the front bulkhead through the A-pillar 3. This arrangement causes the direction of the impact force to change multiple times during the transmission process, thereby reducing the effect of the impact force, improving the structural strength of the front frame 100 of the vehicle body, and improving driving safety.

[0037] In some embodiments, such as Figures 2-3As shown, the front frame 100 of the vehicle body also includes an upper force transmission beam 7, which is configured to extend from front to back and downward. The front part of the upper force transmission beam 7 is connected to the rear section 22 of the side beam, and the rear part of the upper force transmission beam 7 is connected to the A-pillar 3 of the vehicle body.

[0038] Specifically, the upper end of the upper force transmission beam 7 is fitted and connected to the lower side of the rear section 22 of the side beam, and the lower end of the upper force transmission beam 7 is fitted and connected to the front side of the A-pillar 3 of the vehicle body. Along the vertical direction of the vehicle, one end of the upper force transmission beam 7 connected to the rear section 22 of the side beam protrudes beyond the other end of the upper force transmission beam 7 connected to the A-pillar 3 of the vehicle body. This forms a triangular structure between the upper force transmission beam 7, the rear section 22 of the side beam, and the A-pillar 3 of the vehicle body. Triangles have stability, which can improve the structural stability of the rear section 22 of the side beam, prevent the rear section 22 of the side beam from deforming, and increase driving safety. At the same time, the collision force is transmitted to the upper force transmission beam 7 through the rear section 22 of the side beam, and then dispersed and transmitted to the A-pillar 3 of the vehicle body through the upper force transmission beam 7, further dispersing the collision force, increasing the structural strength of the longitudinal beam connecting seat 42, and improving driving safety.

[0039] In some embodiments, such as Figures 2-3 As shown, the cabin longitudinal beam 4 includes a longitudinal beam body 41 and a longitudinal beam connecting seat 42. The front end of the longitudinal beam body 41 is connected to the connecting beam 1, and the rear end of the longitudinal beam body 41 is connected to the front side of the front lower crossbeam 6. The longitudinal beam connecting seat 42 is connected to the lower rear end of the longitudinal beam body 41 and is connected to the front floor crossbeam 5.

[0040] Specifically, the longitudinal beam connecting seat 42 is located below the longitudinal beam body 41, parallel to the longitudinal beam body 41, and connected to the lower surface of the longitudinal beam body 41. One end of the longitudinal beam connecting seat 42 is a free end, and the other end is connected to the front floor beam 5. The impact force is transmitted through the longitudinal beam body 41. When the force is transmitted to the rear end of the longitudinal beam body 41, it is dispersed and transmitted through the longitudinal beam body 41, the inner force transmission beam 8, the outer force transmission beam 9, and the longitudinal beam connecting seat 42. The impact force dispersed to the longitudinal beam connecting seat 42 can be transmitted to the front floor beam 5. Both ends of the crossbeam 5 are connected to the sill beam 11, so that the collision force can be transmitted to the sill beam 11. At the same time, the side of the floor front crossbeam 5 away from the longitudinal beam connecting seat 42 is connected to the connecting longitudinal beam 14, which can further transmit the collision force to the vehicle floor to reduce the damage to the vehicle body. The longitudinal beam connecting seat 42 and the sill beam 11 are spaced apart, and a bottom force transmission beam 10 is provided between the longitudinal beam connecting seat 42 and the sill beam 11 to improve the structural stability of the longitudinal beam connecting seat 42, prevent the longitudinal beam connecting seat 42 from deforming, and increase driving safety.

[0041] Meanwhile, the longitudinal beam connecting seat 42 is perpendicular to the front floor crossbeam 5, and the front floor crossbeam 5 is perpendicular to the sill beam 11. The direction of the collision force changes multiple times during the transmission process, further weakening the impact of the collision force on the vehicle body, improving the structural strength of the vehicle body, and enhancing driving safety.

[0042] In some embodiments, such as Figures 1-3 As shown, the front frame 100 of the vehicle body also includes an inner force transmission beam 8 and an outer force transmission beam 9. The inner force transmission beam 8 is connected to the inner side of the longitudinal beam body 41 and the lower crossbeam 6 of the front bulkhead, respectively. The outer force transmission beam 9 is connected to the outer side of the longitudinal beam body 41 and the lower crossbeam 6 of the front bulkhead, respectively. That is, both the inner force transmission beam 8 and the outer force transmission beam 9 are set to be inclined relative to the longitudinal beam body 41. One end of the inner force transmission beam 8 and the outer force transmission beam 9 is connected to the longitudinal beam body 41, and the other end is connected to the lower crossbeam 6 of the front bulkhead, so as to form a herringbone force transmission path.

[0043] Specifically, when a vehicle is involved in a frontal collision, the longitudinal beam body 41 is the first to be subjected to the impact force. The two longitudinal beam bodies 41 are symmetrically arranged, which can evenly distribute and transmit the impact force. When the impact force is transmitted to the rear end of the longitudinal beam body 41, part of the force can be transmitted to the lower crossbeam 6 of the front bulkhead through the longitudinal beam body 41, and another part of the force can be transmitted to the lower crossbeam 6 of the front bulkhead through the inner force transmission beam 8 and the outer force transmission beam 9. The inner force transmission beam 8 and the outer force transmission beam 9 are inclined, so that the inner force transmission beam 8 and the outer force transmission beam 9 form a triangular structure with the longitudinal beam body 41 and the lower crossbeam 6 of the front bulkhead, respectively. The stability of the triangle can improve the structural strength of the longitudinal beam body 41, and the impact force is dispersed and transmitted to the lower crossbeam 6 of the front bulkhead through the longitudinal beam body 41, the inner force transmission beam 8 and the outer force transmission beam 9, avoiding the deformation of the lower crossbeam 6 of the front bulkhead due to excessive local stress, thus increasing driving safety.

[0044] In some embodiments, both the inner force transmission beam 8 and the outer force transmission beam 9 are configured to extend obliquely from front to back in a direction away from the longitudinal beam body 41, and the rear ends of the inner force transmission beam 8 and the outer force transmission beam 9 are spaced apart from the longitudinal beam body 41.

[0045] Specifically, both the inner force transmission beam 8 and the outer force transmission beam 9 are set to be inclined relative to the longitudinal beam body 41. One end of the inner force transmission beam 8 and the outer force transmission beam 9 are connected to the longitudinal beam body 41, and the other end is connected to the lower front crossbeam 6 to form a herringbone force transmission path. The outer force transmission beam 9 is located on the outer side of the rear end of the longitudinal beam body 41, that is, the outer force transmission beam 9 is located on the rear end of the longitudinal beam body 41 near the sill beam 11. The front end of the outer force transmission beam 9 is attached to the outer side of the longitudinal beam body 41, and the rear end of the outer force transmission beam 9 is connected to the end of the lower front crossbeam 6. The outer force transmission beam 9 is set to be inclined relative to the longitudinal beam body 41, thereby forming a triangular structure with the longitudinal beam body 41, the outer force transmission beam 9 and the lower front crossbeam 6. The triangle has stability, which can improve the structural stability of the longitudinal beam body 41.

[0046] Meanwhile, the inner force transmission beam 8 is located on the inner side of the rear end of the longitudinal beam body 41, that is, the inner force transmission beam 8 is located on the rear end of the longitudinal beam body 41 away from the sill beam 11. The front end of the inner force transmission beam 8 is attached to the inner side of the longitudinal beam body 41, and the rear end of the inner force transmission beam 8 is connected to the middle of the lower crossbeam 6 of the front bulkhead. The inner force transmission beam 8 is inclined relative to the longitudinal beam body 41, thereby forming a triangular structure with the longitudinal beam body 41, the inner force transmission beam 8 and the lower crossbeam 6 of the front bulkhead. The triangle has stability, which can improve the structural stability of the longitudinal beam body 41, avoid the longitudinal beam body 41 from tilting and deforming, and increase driving safety. At the same time, the collision force is transmitted through the longitudinal beam body 41 and dispersed to the lower crossbeam 6 of the front bulkhead through the inner force transmission beam 8 and the outer force transmission beam 9. This avoids the collision force being too concentrated when transmitted to the lower crossbeam 6 of the front bulkhead, which could lead to deformation or breakage of the lower crossbeam 6 of the front bulkhead. This increases the structural strength of the lower crossbeam 6 of the front bulkhead and further improves driving safety.

[0047] In some embodiments, such as Figures 1-3 As shown, the front frame 100 of the vehicle body also includes a bottom force transmission beam 10, which is connected to the outer side of the longitudinal beam connecting seat 42, and the outer end of the bottom force transmission beam 10 is connected to the sill beam 11.

[0048] Specifically, the front end of the bottom force transmission beam 10 is fitted and connected to the outer side of the longitudinal beam connecting seat 42, and the rear end of the bottom force transmission beam 10 is fitted and connected to the inner side of the sill beam 11. Along the front-rear direction of the vehicle, one end of the bottom force transmission beam 10 connected to the longitudinal beam connecting seat 42 protrudes beyond the other end of the bottom force transmission beam 10 connected to the sill beam 11. That is, the bottom force transmission beam 10 is inclined relative to the longitudinal beam connecting seat 42, thereby forming a triangular structure between the bottom force transmission beam 10, the longitudinal beam connecting seat 42, and the front bulkhead reinforcing plate. Triangles have stability, which can improve the structural stability of the longitudinal beam connecting seat 42, prevent the longitudinal beam connecting seat 42 from deforming, and increase driving safety. At the same time, the collision force is transmitted to the longitudinal beam connecting seat 42 through the engine compartment longitudinal beam 4, and then dispersed to the sill beam 11 through the bottom force transmission beam 10, further dispersing the collision force, increasing the structural strength of the longitudinal beam connecting seat 42, and improving driving safety.

[0049] In some embodiments, the cabin longitudinal beam 4 is formed by profile extrusion. The longitudinal beam body 41 has a hollow cavity with reinforcing ribs inside. The reinforcing ribs divide the hollow cavity into multiple sub-cavities. The improved mechanical properties of the profile extrusion process and the full utilization of the material's plasticity are unmatched by other forging methods. This ensures the quality of the cabin longitudinal beam 4, while also reducing processing time and simplifying operation. It optimizes the manufacturing process and improves the force transmission effect.

[0050] Specifically, such as Figure 3As shown, a hollow cavity is formed inside the longitudinal beam body 41, and reinforcing ribs are provided inside the hollow cavity. In the event of a vehicle collision, the hollow cavity can act as a buffer, thereby reducing the impact of the collision force on the vehicle body and passengers. The reinforcing ribs inside the hollow cavity can improve the structural strength of the longitudinal beam body 41. At the same time, the reinforcing ribs divide the hollow cavity into multiple sub-cavities, which can disperse the collision force, thereby improving the safety of the vehicle in frontal collisions and reducing the risk of frontal deformation. The longitudinal beam body 41 can also adjust its structural strength by changing the thickness of the reinforcing ribs, thereby meeting different usage requirements.

[0051] In some embodiments, such as Figure 3 As shown, multiple sub-cavities are spaced apart in the vertical direction, and the number of sub-cavities in the front section of the longitudinal beam body 41 is less than the number of sub-cavities in the rear section of the longitudinal beam body 41. In this embodiment, two sub-cavities are arranged vertically in the front section of the longitudinal beam body 41, three sub-cavities are arranged vertically in the rear section of the longitudinal beam body 41, and two additional sub-cavities are arranged vertically below the sub-cavity at the very front end of the longitudinal beam body 41.

[0052] Specifically, the hollow cavity acts as a buffer and is divided into multiple sub-cavities. These sub-cavities can disperse the collision force, thereby improving the safety of the vehicle during a frontal collision. During a vehicle collision, the front end of the longitudinal beam body 41 bears the collision force first, and the collision force is the greatest at this time. Adding sub-cavities below can improve the structural strength at this point to ensure effective transmission of the collision force. Furthermore, the rear section of the longitudinal beam body 41 is connected to the lower front crossbeam 6. After the collision force is transmitted to the lower front crossbeam 6, the lower front crossbeam 6 will generate a reaction force on the rear section of the longitudinal beam body 41. Adding sub-cavities in the rear section of the longitudinal beam body 41 can improve the structural strength of the rear section of the longitudinal beam body 41, preventing the rear section of the longitudinal beam body 41 from bending due to excessive force, thus improving the vehicle's safety performance.

[0053] In some embodiments, such as Figure 2 As shown, the front frame 100 of the vehicle body also includes a connector 12, which is located on the upper part of the A-pillar 3 of the vehicle body and is used to connect with the upper side beam 13 of the A-pillar. The connector 12 is a cast aluminum part.

[0054] Specifically, the upper beam 13 of the A-pillar is connected to the upper part of the A-pillar 3 of the vehicle body through the connector 12, which can improve the reliability of the connection between the upper beam 13 of the A-pillar and the A-pillar 3 of the vehicle body. In this embodiment, the connector 12 can be made of aluminum alloy material. Aluminum alloy material is made of pure aluminum by adding some alloying elements. It has better physical and mechanical properties than pure aluminum: easy to process, high durability, wide range of applications, good decorative effect, rich colors, etc., and has the characteristics of being lighter and easier to process, thereby making the vehicle body lighter, saving vehicle energy consumption, making the vehicle accelerate faster, and reducing vehicle inertia, avoiding side tilting or increased impact force due to excessive vehicle weight, thus improving safety.

[0055] Furthermore, casting is a process that involves pouring molten metal into a mold and then cooling it to form a part of the desired shape. This process can produce parts with complex shapes without requiring large additional equipment, thus saving manufacturing costs and improving manufacturing efficiency.

[0056] In some embodiments, at least one of the connecting beam 1, the cabin side beam 2, the cabin longitudinal beam 4, and the front lower crossbeam 6 is formed by profile extrusion molding. It is understood that the improved mechanical properties and full utilization of the material's plasticity by the profile extrusion molding process are unmatched by other forging methods, thereby ensuring the quality after connection. Moreover, the time cost during processing is relatively small, the operation is simpler, the manufacturing process is optimized, and the force transmission effect is improved.

[0057] Specifically, in this embodiment, at least one of the connecting beam 1, the engine compartment side beam 2, the engine compartment longitudinal beam 4, and the front bulkhead lower crossbeam 6 can be made by profile extrusion molding, so that the front frame 100 of the vehicle body forms a cavity. This ensures that the formed front frame 100 of the vehicle body can form multiple force transmission channels, providing a force transmission effect, thereby improving the overall body strength and rigidity. In addition, the extrusion molding process can reduce the number of parts, making at least one of the connecting beam 1, the engine compartment side beam 2, the engine compartment longitudinal beam 4, and the front bulkhead lower crossbeam 6 an integrated design, reducing the design and development of molds and fixtures, and thus reducing manufacturing costs.

[0058] The present invention also proposes a vehicle.

[0059] According to an embodiment of the present invention, a vehicle body front frame 100 is provided with any of the above-mentioned features.

[0060] According to an embodiment of the present invention, the vehicle is provided with a front frame 100. The front frame 100 is provided with a connecting beam 1, a side beam 2 of the engine compartment, a longitudinal beam 4 of the engine compartment, a lower crossbeam 6 of the front bulkhead, and a body A-pillar 3, so that the collision force has multiple transmission paths, thereby improving the force transition and transmission effect, ensuring the structural strength of the front frame 100, improving driving safety, and having a simple structure, better performance, and wider applicability.

[0061] 1. In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0062] 2. In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0063] 3. In the description of this invention, "a plurality of" means two or more.

[0064] 4. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0065] 5. In the description of the present invention, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0067] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A front frame for a vehicle body, characterized in that, include: Connecting beams; The cabin side beam includes a front section and a rear section. The front part of the front section is connected to the upper part of the connecting beam, the rear part of the front section is connected to the front part of the rear section, and the rear part of the rear section is connected to the upper part of the A-pillar of the vehicle body. The front section of the side beam is constructed to extend outward from front to back. The engine compartment longitudinal beam and the front lower crossbeam are provided. The engine compartment longitudinal beam includes a longitudinal beam body and a longitudinal beam connecting seat. The front end of the longitudinal beam body is connected to the lower part of the connecting beam. The rear end of the longitudinal beam body is connected to the front side of the front lower crossbeam. The longitudinal beam connecting seat is connected to the lower rear end of the longitudinal beam body and is connected to the front floor crossbeam. The rear section of the side beam is parallel and spaced apart from the engine compartment longitudinal beam. The end of the front lower crossbeam is connected to the A-pillar of the vehicle body. The rear part of the engine compartment longitudinal beam is connected to the front lower crossbeam. The upper force transmission beam is configured to extend from front to back and downward at an incline. The front part of the upper force transmission beam is connected to the rear section of the side beam, and the rear part of the upper force transmission beam is connected to the A-pillar of the vehicle body. The inner force transmission beam and the outer force transmission beam are respectively connected to the inner side of the longitudinal beam body and the lower crossbeam of the front enclosure, and the outer force transmission beam is respectively connected to the outer side of the longitudinal beam body and the lower crossbeam of the front enclosure. The bottom force transmission beam is connected to the outer side of the longitudinal beam connecting seat, and the outer end of the bottom force transmission beam is connected to the sill beam.

2. The front frame of the vehicle body according to claim 1, characterized in that, Both the inner force transmission beam and the outer force transmission beam are configured to extend inclinedly from front to back in a direction away from the longitudinal beam body, and the rear ends of the inner force transmission beam and the outer force transmission beam are spaced apart from the longitudinal beam body.

3. The front frame of the vehicle body according to claim 1, characterized in that, The cabin longitudinal beam is formed by extrusion of profiles. The longitudinal beam body has a hollow cavity, and the hollow cavity is provided with reinforcing ribs, which divide the hollow cavity into multiple sub-cavities.

4. The front frame of the vehicle body according to claim 3, characterized in that, The multiple sub-cavities are spaced apart in the vertical direction, and the number of sub-cavities in the front section of the longitudinal beam body is less than the number of sub-cavities in the rear section of the longitudinal beam body.

5. The front frame of the vehicle body according to claim 1, characterized in that, It also includes a connector, which is located on the upper part of the A-pillar of the vehicle body and is used to connect with the upper side beam of the A-pillar. The connector is a cast aluminum part.

6. The front frame of the vehicle body according to claim 1, characterized in that, At least one of the connecting beam, the cabin side beam, the cabin longitudinal beam, and the front lower crossbeam is formed by profile extrusion.

7. A vehicle, characterized in that, The vehicle body front frame is provided as described in any one of claims 1-6.

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