Forward load-bearing structure of the cabin and vehicle

Abstract

This invention provides a front-end force transmission structure for the engine compartment and a vehicle. The front-end force transmission structure includes a central front load-bearing ring and side load-bearing rings on the left and right sides. The front end of each side load-bearing ring is connected to the front load-bearing ring, and the rear end of each side load-bearing ring is connected to the front wheel arch side beam on the same side. The front load-bearing ring contains a load-bearing structure, which has a longitudinal portion arranged along the vertical direction of the vehicle and a transverse portion arranged along the horizontal direction of the vehicle. The load-bearing structure is further divided into multiple annular structures within the front load-bearing ring. Based on the front and side load-bearing rings, this invention further incorporates a load-bearing structure with both longitudinal and transverse portions, increasing the structural strength at the front of the engine compartment and aiding in the distribution and transmission of collision forces at the front of the engine compartment, thereby improving the overall vehicle collision safety.

Description

Technical Field

[0001] This invention relates to the field of vehicle body technology, and particularly to a force transmission structure at the front of the engine compartment. This invention also relates to a vehicle equipped with the aforementioned force transmission structure at the front of the engine compartment. Background Technology

[0002] In the vehicle body, the front load-bearing structure of the engine compartment is an important component of the body frame. Its main function is to connect the two main load-bearing channels of the engine compartment longitudinal beam and the engine compartment side beam, transmit and disperse collision forces, resist external collision impacts, and also provide mounting points for engine compartment accessories. It is an important load-bearing and load-bearing area in the entire vehicle structure.

[0003] Currently, the front load-bearing structure of the engine compartment typically consists of a front bumper beam assembly, a front frame, engine compartment longitudinal beam assemblies, engine compartment side beam assemblies, front wheel arch assemblies, and connecting brackets. The engine compartment longitudinal beam assemblies, engine compartment side beam assemblies, front wheel arch assemblies, and connecting brackets are designed symmetrically. The front frame connects to the left and right engine compartment longitudinal beam assemblies in the Y-direction (left-right direction of the vehicle) and to the front bumper beam assembly in the X-direction (front-rear direction of the vehicle). The connecting brackets connect the front frame to the engine compartment side beam assemblies on both sides.

[0004] While existing front-end force transmission structures in the engine compartment can absorb and distribute collision impacts, they still suffer from structural simplicity and weak overall strength. In frontal or offset collisions, the front of the vehicle body suffers significant damage, which is detrimental to improving overall vehicle collision safety. Furthermore, the large size, complex structure, and high cost of existing front-end force transmission structures make them unsuitable for use in compact or low-cost vehicle bodies. Summary of the Invention

[0005] In view of this, the present invention aims to propose a force transmission structure at the front of the engine compartment to improve the overall vehicle collision safety.

[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0007] A force transmission structure at the front of the cabin includes a front load-bearing ring located in the middle and side load-bearing rings located on the left and right sides respectively.

[0008] The front end of each side bearing ring is connected to the front bearing ring, and the rear end of each side bearing ring is connected to the front wheel arch side beam on the same side.

[0009] The front load-bearing ring is provided with a load-bearing structure, which has a longitudinal portion arranged along the vertical direction of the vehicle and a transverse portion arranged along the horizontal direction of the vehicle. The load-bearing structure is divided into multiple ring structures within the front load-bearing ring.

[0010] Furthermore, the front load-bearing ring includes an upper front crossbeam and a lower front crossbeam arranged vertically, as well as headlight mounting plates disposed on the left and right sides respectively.

[0011] The longitudinal portion connects between the upper front crossbeam and the lower front crossbeam, and the transverse portion connects between the headlight mounting plates on both sides.

[0012] Furthermore, the longitudinal portion includes an intermediate connecting beam connecting the upper front crossbeam and the lower front crossbeam, and the transverse portion includes a front middle crossbeam connecting the headlight mounting plates on both sides.

[0013] The intermediate connecting beam is located in the middle of the vehicle in the left-right direction, the front middle crossbeam is arranged close to the front lower crossbeam, and the intermediate connecting beam and the front middle crossbeam are connected together.

[0014] Furthermore, the intermediate connecting beam and the front crossbeam are connected by an intermediate beam connecting plate;

[0015] The bottom end of the intermediate beam connecting plate is fixed to the front crossbeam, and the top end of the intermediate beam connecting plate is connected to the intermediate connecting beam by a single connector.

[0016] An energy-absorbing cavity with an open bottom is formed between the intermediate beam connecting plate and the intermediate connecting beam.

[0017] Furthermore, both ends of the front crossbeam are connected to the headlight mounting plates on both sides via crossbeam connecting plates.

[0018] Both sides of the middle crossbeam connecting plate extend along the front-rear direction of the vehicle, and the front end of each side of the middle crossbeam connecting plate is connected to the front middle crossbeam. The rear end of each side of the middle crossbeam connecting plate is provided with a connecting flange, and the connecting flange is connected to the headlight connecting plate.

[0019] Furthermore, the middle part of the front lower crossbeam is recessed along the vertical direction of the whole vehicle, and the front lower crossbeam includes a lower crossbeam outer plate and a lower crossbeam inner plate that are fastened together.

[0020] An outer cavity is formed between the outer plate of the lower crossbeam and the inner plate of the lower crossbeam, and an inner cavity is formed between the inner plate of the lower crossbeam and the headlight mounting plates on both sides. The inner cavities on both sides are superimposed on the outer cavity in the front-rear direction of the vehicle.

[0021] Furthermore, each of the side bearing rings includes the headlight mounting plate, a front connecting beam connecting the headlight mounting plate and the front wheel arch side beam, and a headlight connecting plate connecting the headlight mounting plate and the front wheel arch side beam.

[0022] The front connecting beam and the headlight mounting plate are connected together with the front upper crossbeam, and the headlight connecting plate and the front connecting beam are connected together with the front wheel arch side beam.

[0023] Furthermore, along the direction pointing to the front wheel arch side beam, the width of the front connecting beam gradually decreases along the left-right direction of the entire vehicle; and / or,

[0024] A cavity is formed between the headlight mounting plate on each side and the front connecting beam on the same side. A headlight mounting reinforcement plate is connected to one side of each headlight mounting plate, and a cavity is formed between the headlight mounting plate and the headlight mounting reinforcement plate.

[0025] Furthermore, a U-shaped overlapping portion is formed between the front upper crossbeam and the front connecting beams on each side; and / or,

[0026] The front end of each of the front wheel arch side beams has a box-shaped corner structure. The rear end of the front connecting beam and the upper end of the headlight connecting plate are connected to the corner structure. The rear end of the front connecting beam and the upper end of the headlight connecting plate respectively form an "L"-shaped connection section that matches the corner structure.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] The front load-bearing structure of the engine compartment described in this invention forms a front load-bearing ring and a side load-bearing ring at the front end of the engine compartment. Based on the front load-bearing ring and the side load-bearing ring, a load-bearing structure including transverse and longitudinal parts is further provided. This not only utilizes the high strength of the ring structure, as well as the load-bearing and strengthening properties of the load-bearing structure, to increase the structural strength of the front end of the engine compartment, but also helps to disperse the transmission of collision forces at the front end of the engine compartment, thereby improving the collision safety of the entire vehicle.

[0029] In addition, the front load-bearing ring consists of the front upper crossbeam, the front lower crossbeam, and the headlight mounting plates on both sides. This allows the ring structure formed by the front crossbeam and the headlight mounting plates to replace the front frame, which occupies a large amount of space. This effectively saves layout space, facilitates the arrangement of accessories in the engine compartment, simplifies structural design, and reduces costs, making it suitable for use in compact and low-cost vehicle bodies.

[0030] The longitudinal and transverse sections are respectively composed of the intermediate connecting beam and the front crossbeam, making the load-bearing structure a cross-shaped interactive structure. This not only strengthens the load-bearing structure and enhances its load-bearing capacity, but also simplifies its structure, which is beneficial for the design, fabrication and assembly of the load-bearing structure.

[0031] Secondly, the bottom end of the intermediate beam connecting plate is connected to the front crossbeam, and the top end is connected to the intermediate connecting beam through a single connector. An energy-absorbing cavity is formed between the intermediate beam connecting plate and the intermediate connecting beam. By utilizing the single-point connection of the single connector to achieve structural weakening at a fixed position, and in conjunction with the energy-absorbing cavity below, a better collapse energy absorption capacity can be achieved, which helps the load-bearing structure absorb collision energy.

[0032] The two ends of the front crossbeam are connected to the headlight mounting plate through the crossbeam connecting plate, and the rear end of the crossbeam connecting plate is connected to the headlight mounting plate through the connecting flange. The single-plate connection structure of the crossbeam connecting plate and the flange-type docking between it and the headlight mounting plate make the overall connection structure formed by the crossbeam connecting plate have the characteristics of easy deformation. In the event of a collision, the crossbeam connecting plate, especially the crumple energy absorption of the connecting flange, can be used to improve the energy absorption capacity of the collision.

[0033] In addition, the recessed design in the middle of the front lower crossbeam improves its overall rigidity and helps increase the Z-axis (vertical direction of the vehicle) dimensions and layout space at the front of the engine compartment. The front lower crossbeam is formed by the interlocking of the outer and inner lower crossbeam panels, creating overlapping outer and inner cavities between the outer and inner lower crossbeam panels and the headlight mounting plate. This high-strength cavity stacking structure ensures the connection strength between the front lower crossbeam and the headlight mounting plate, facilitating the transfer of impact forces borne by the front lower crossbeam to the side headlight mounting plate.

[0034] The side load-bearing rings are composed of headlight mounting plates, front connecting beams, and headlight connecting plates, which simplifies the structure of the side load-bearing rings and facilitates their design and fabrication. The front connecting beam and headlight mounting plates are connected to the front upper crossbeam, and the headlight connecting plates and front connecting beams are connected to the front wheel arch side beams. This multi-sheet metal overlapping connection method ensures the reliability of the connection between the front load-bearing rings, side load-bearing rings, and front wheel arch side beams, thus improving the collision force transmission performance of the collision force transmission channel formed by these three components.

[0035] Furthermore, by making the width of the front connecting beam gradually decrease along the left and right direction of the vehicle, the front connecting beam can become a "trumpet-shaped" connection structure. The large section of the front connecting beam can be matched and connected with the intersection of the front load-bearing ring and the side load-bearing ring, while the small section can be connected with the front wheel arch side beam. On the one hand, this can increase the structural strength at the intersection of the front of the side load-bearing ring and the front load-bearing ring, ensuring the load-bearing performance of the front of the side load-bearing ring. On the other hand, it can also achieve a gradual change in the load-bearing strength of the front connecting beam, improving its crumple energy absorption effect during a collision.

[0036] By constructing cavities between the headlight mounting plate and the front connecting beam, and between the headlight mounting plate and the headlight mounting reinforcement plate, the high structural strength of these cavities ensures the structural strength of the headlight mounting plate and the connection strength between the headlight mounting plate and surrounding components such as the front connecting beam. A U-shaped overlapping section between the front upper crossbeam and the front connecting beam further enhances the structural strength of both the front upper crossbeam and the front connecting beam, as well as the connection strength between them. The front end of the front wheel arch side beam features a box-shaped corner structure, creating an L-shaped connection section between the rear end of the front connecting beam and the upper end of the headlight connecting plate that matches the corner structure. This facilitates multi-dimensional matching connections between the front connecting beam, the headlight connecting plate, and the front wheel arch side beam, improving the overall connection strength and ensuring effective transmission of collision forces to the front wheel arch side beam.

[0037] Another object of the present invention is to provide a vehicle having a front engine compartment force transmission structure as described above.

[0038] The vehicle described in this invention, by setting the aforementioned front force transmission structure of the engine compartment, can increase the structural strength of the front end of the engine compartment, which helps to distribute the collision force at the front end of the engine compartment, thereby improving the overall vehicle collision safety. Attached Figure Description

[0039] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0040] Figure 1 This is a schematic diagram of the forward force transmission structure of the cabin according to an embodiment of the present invention;

[0041] Figure 2 for Figure 1 Schematic diagrams of the structure shown from other perspectives;

[0042] Figure 3 for Figure 1 A schematic diagram of the structure shown from another perspective;

[0043] Figure 4 for Figure 3 Enlarged view of section A;

[0044] Figure 5 This is a schematic diagram of the load-bearing structure described in an embodiment of the present invention;

[0045] Figure 6 for Figure 5 Cross-sectional view of the BB position in the middle;

[0046] Figure 7 for Figure 5Cross-sectional view at position CC;

[0047] Figure 8 This is a schematic diagram of a portion of the force transmission structure at the front of the cabin as described in an embodiment of the present invention;

[0048] Figure 9 This is a schematic diagram of the front lower crossbeam structure according to an embodiment of the present invention;

[0049] Figure 10 for Figure 8 Cross-sectional view of the DD position in the middle;

[0050] Figure 11 for Figure 8 Cross-sectional view of the EE location;

[0051] Figure 12 This is a schematic diagram of the front-end connecting beam according to an embodiment of the present invention;

[0052] Figure 13 This is a schematic diagram of the intersection of the front upper crossbeam, headlight mounting plate, and front connecting beam as described in an embodiment of the present invention;

[0053] Figure 14 for Figure 13 Cross-sectional view of the FF position;

[0054] Figure 15 for Figure 13 Cross-sectional view of the GG location;

[0055] Figure 16 This is a schematic diagram of the intersection of the front connecting beam, the headlight connecting plate, and the front wheel arch side beam as described in an embodiment of the present invention;

[0056] Figure 17 This is a schematic diagram of the front wheel arch side beam according to an embodiment of the present invention;

[0057] Figure 18 for Figure 16 Cross-sectional view of the HH position;

[0058] Figure 19 for Figure 16 Cross-sectional view at position II;

[0059] Figure 20 This is a schematic diagram of the collision force transmission of the forward force transmission structure of the cabin according to an embodiment of the present invention;

[0060] Explanation of reference numerals in the attached figures:

[0061] 100. Front load-bearing ring; 200. Side load-bearing ring; 300. Load-bearing structure;

[0062] 1. Front upper crossbeam; 2. Front lower crossbeam; 3. Front middle crossbeam; 4. Middle connecting beam; 5. Middle beam connecting plate; 6. Middle crossbeam connecting plate; 7. Headlight mounting plate; 8. Headlight connecting plate; 9. Front connecting beam; 10. Front wheel arch side beam; 11. Connecting parts; 12. Headlight reinforcement plate; 13. Headlight reinforcement plate;

[0063] 2a. Lower crossbeam outer plate; 2b. Lower crossbeam inner plate; 2c. Recessed portion; 6a. Connecting flange; 7a. Lower portion; 7b. Side portion; 10a. Corner structure;

[0064] Q, energy absorption cavity; M, outer cavity; N, inner cavity; K, first cavity; L, second cavity; S, superimposed part; t, width of the front wheel arch side beam. Detailed Implementation

[0065] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0066] In the description of this invention, it should be noted that the use of terms such as "upper," "lower," "inner," and "outer," indicating orientation or positional relationship, is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the use of terms such as "first" and "second" is also for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0067] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0068] Furthermore, in the description of this invention, the X, Y, and Z directions are all based on the vehicle coordinate system. Specifically, the X direction is the front-to-back direction of the vehicle, the Y direction is the left-to-right direction of the vehicle, and the Z direction is the up-to-down direction of the vehicle.

[0069] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0070] Example 1

[0071] This embodiment relates to a front-end force transmission structure for the engine compartment, which can improve the collision safety of the entire vehicle and contribute to the improvement of the overall quality of the vehicle.

[0072] In existing vehicle bodies, the front load-bearing structure of the engine compartment typically consists of a front bumper beam assembly, a front end frame, engine compartment longitudinal beam assemblies, engine compartment side beam assemblies, front wheel arch assemblies, and connecting brackets. The engine compartment longitudinal beam assemblies, engine compartment side beam assemblies, front wheel arch assemblies, and connecting brackets are usually designed symmetrically from left to right. The front end frame connects to the left and right engine compartment longitudinal beam assemblies in the Y direction and to the front bumper beam assembly in the X direction. The connecting brackets connect the front end frame to the engine compartment side beam assemblies on both sides.

[0073] The aforementioned existing frontal force transmission structure of the engine compartment can transmit the collision force from the front anti-collision particle assembly to the engine compartment longitudinal beam assembly, engine compartment side beam assembly, and front wheel arch assembly through the front frame and connecting brackets when a vehicle collision occurs, especially a frontal or offset collision, so as to receive and disperse the collision impact.

[0074] However, in practical applications, especially as people place increasing emphasis on vehicle collision safety, existing front engine compartment force transmission structures still suffer from drawbacks such as simple structure, weak overall strength, and significant damage to the front of the vehicle body in frontal or offset collisions, which is detrimental to improving overall vehicle collision safety. At the same time, the large size, complex structure, and high cost of the front-end frame make existing front engine compartment force transmission structures unsuitable for compact or low-cost vehicle bodies, requiring redevelopment and increasing overall vehicle development costs.

[0075] In view of the shortcomings of the existing cabin front force transmission structure, in the cabin front force transmission structure of this embodiment, in terms of overall structure, combined with Figure 1 As shown, it mainly includes a front bearing ring 100 located in the middle, and side bearing rings 200 located on the left and right sides respectively.

[0076] The front end of each side bearing ring 200 is connected to the front bearing ring 100, and the rear end of each side bearing ring 200 is connected to the front wheel arch side beam 10 on the same side. Simultaneously, a bearing structure 300 is also provided within the front bearing ring 100. This bearing structure 300 has a longitudinal portion arranged along the vertical direction of the vehicle and a transverse portion arranged along the horizontal direction of the vehicle. Furthermore, the arrangement of the bearing structure 300 also divides the front bearing ring 100 into multiple annular structures.

[0077] At this point, as described above, by forming a front load-bearing ring 100 and a side load-bearing ring 200 at the front end of the engine compartment, and further providing a load-bearing structure 300 including transverse and longitudinal portions on the basis of having the front load-bearing ring 100 and the side load-bearing ring 200, this embodiment can utilize the high strength of the ring structure, as well as the load-bearing and strengthening properties of the load-bearing structure 300, to increase the structural strength at the front end of the engine compartment, and help to transmit and disperse the collision force at the front end of the engine compartment, thereby improving the collision safety of the entire vehicle.

[0078] Based on the above general introduction, specifically, in a vehicle, the aforementioned engine compartment is also the front engine compartment located at the front of the vehicle body, and therefore, the force transmission structure at the front of the engine compartment in this embodiment is also the force transmission structure located at the front of the vehicle body.

[0079] In addition, continue as Figures 2 to 4 As shown in the figure, in a preferred embodiment, the front load-bearing ring 100 of this embodiment includes an upper front crossbeam 1 and a lower front crossbeam 2 arranged vertically, and headlight mounting plates 7 disposed on the left and right sides respectively. At this time, the longitudinal part of the load-bearing structure 300 is connected between the upper front crossbeam 1 and the lower front crossbeam 2, and the transverse part is connected between the headlight mounting plates 7 on both sides.

[0080] At this point, by making the front load-bearing ring 100 mainly composed of the front upper crossbeam 1, the front lower crossbeam 2, and the headlight mounting plates 7 on both sides, the ring structure formed by the front crossbeam and the headlight mounting plates 7 can replace the existing front frame with a large space occupation, which can effectively save layout space, provide convenience for the layout of accessories in the engine compartment, and also simplify the structural design and reduce costs. Thus, the front load-bearing structure of the engine compartment in this embodiment is suitable for application in compact and low-cost vehicle bodies.

[0081] In this embodiment, the front load-bearing ring 100 is composed of a front upper crossbeam 1, a front lower crossbeam 2, and headlight mounting plates 7 on both sides. As a preferred embodiment, the longitudinal portion of the load-bearing structure 300 specifically includes an intermediate connecting beam 4 connecting the front upper crossbeam 1 and the front lower crossbeam 2, while the transverse portion includes a front middle crossbeam 3 connecting the headlight mounting plates 7 on both sides. Furthermore, in terms of specific arrangement, please refer to... Figure 1 As shown, the intermediate connecting beam 4 is located in the middle of the vehicle in the left-right direction, and the front middle crossbeam 3 is arranged close to the front lower crossbeam 2. At the same time, the intermediate connecting beam 4 and the front middle crossbeam 3 are also connected together.

[0082] It is understandable that by making the longitudinal and transverse parts of the load-bearing structure 300 consist of the intermediate connecting beam 4 and the front crossbeam 3 respectively, the load-bearing structure 300 of this embodiment can become a cross-shaped interactive structure. This not only makes the load-bearing structure 300 have better reinforcement and load-bearing function, but also helps to simplify its structure, which in turn facilitates the design, preparation and assembly of the load-bearing structure 300.

[0083] It should be noted that, in specific implementation, the front upper crossbeam 1, front lower crossbeam 2, and headlight mounting plates 7 on both sides that together constitute the front load-bearing ring 100, as well as the front middle crossbeam 3 and intermediate connecting beam 4 that constitute the load-bearing structure 300, can all be made of sheet metal. This facilitates the fabrication of each beam or plate structure and also reduces material costs. Furthermore, the beams can be connected to each other, or to each plate, by welding. This ensures reliable connections while also helping to reduce connection costs.

[0084] In this embodiment, the connection between the front crossbeam 3 and the intermediate connecting beam 4 in the load-bearing structure 300 is, as a preferred implementation, continued as follows: Figure 5 and Figure 6 As shown, the intermediate connecting beam 4 and the front crossbeam 3 can be connected, for example, by an intermediate beam connecting plate 5. The bottom end of the intermediate beam connecting plate 5 is fixed to the front crossbeam 3, and its top end is connected to the intermediate connecting beam 4 by a single connector 11. Based on the connection of the connector 11, an energy-absorbing cavity Q with an open bottom is also formed between the intermediate beam connecting plate 5 and the intermediate connecting beam 4.

[0085] At this point, by using the intermediate beam connecting plate 5, with the bottom end of the intermediate beam connecting plate 5 connected to the front crossbeam 3 and the top end connected to the intermediate connecting beam 4 via a single connector 11, and forming an energy-absorbing cavity Q between the intermediate beam connecting plate 5 and the intermediate connecting beam 4, this embodiment can further strengthen the fixed position structure between the intermediate beam connecting plate 5 and the intermediate connecting beam 4 by utilizing the single-point connection of the single connector 11, and further cooperate with the energy-absorbing cavity Q below, so that the load-bearing structure 300 as a whole can achieve better collapse energy absorption capacity, thereby helping the load-bearing structure 300 to absorb collision energy and reduce the damage caused by collision impact.

[0086] It is worth noting that, in specific implementation, the aforementioned intermediate beam connecting plate 5 can also be made of sheet metal, and its bottom end can be connected to the front intermediate crossbeam 3 by welding. Furthermore, the aforementioned connecting member 11 is preferably made of bolts, and to achieve the connection, for example, threaded connection holes can be formed on the intermediate connecting beam 3, or projection-welded nuts can be provided on the intermediate connecting beam 3, as... Figure 6As shown, the top of the intermediate beam connecting plate 5 and the intermediate connecting beam 4 are connected together by a bolted connector 11.

[0087] In this embodiment, the front crossbeam 3 and the intermediate connecting beam 4, which are arranged in a cross shape, are connected by an intermediate beam connecting plate 5. Of course, in specific implementations, the front crossbeam 3 and the intermediate connecting beam 4 can also be directly fixed together by welding or screwing. However, in order to ensure that the load-bearing structure 300 has good collision energy absorption performance while achieving the connection between the front crossbeam 3 and the intermediate connecting beam 4, it is preferable that the front crossbeam 3 and the intermediate connecting beam 4 are indirectly connected by the aforementioned intermediate beam connecting plate 5.

[0088] Still by Figure 5 and continue to combine Figure 7 As shown in the diagram, in a preferred embodiment, the two ends of the front crossbeam 3 are connected to the headlight mounting plates 7 on both sides via crossbeam connecting plates 6. Both crossbeam connecting plates 6 extend along the longitudinal direction of the vehicle, with the front end of each connecting plate 6 connected to the front crossbeam 3, and the rear end of each connecting plate 6 having a connecting flange 6a. Each connecting flange 6a connects to the headlight connecting plate 8 on the same side, thus achieving the connection between the front crossbeam 3 and the headlight mounting plates 7 on both sides.

[0089] At this point, by connecting both ends of the front crossbeam 3 to the headlight mounting plates 7 on both sides via the crossbeam connecting plate 6, and specifically connecting the rear end of the crossbeam connecting plate 6 to the headlight mounting plate 7 via the connecting flange 6a, it can be understood that the single-plate connection structure of the crossbeam connecting plate 6, and the flanged connection between it and the headlight mounting plate 7, makes the overall connection structure formed by the crossbeam connecting plate 6 easily deformable. Thus, this embodiment can utilize the crumple zone energy absorption of the crossbeam connecting plate 6, especially the connecting flange 6a at its end, during a collision, thereby enhancing the ability to absorb collision energy and further improving collision safety.

[0090] In practical implementation, it is worth noting that the connecting plates 6 of the middle crossbeams on each side can also be made of sheet metal, and the connecting flange 6a at the rear end can be formed by stamping. At the same time, the front end of the connecting plate 6 and the front middle crossbeam 3, as well as the connecting flange 6a at the rear end and the headlight mounting plate 7, can all be connected by welding.

[0091] In this embodiment, continue as follows Figure 8 and Figure 9As shown in the diagram, in a preferred embodiment, the middle portion of the front lower crossbeam 2 is also recessed along the vertical direction of the vehicle, thereby forming a recessed portion 2c in the middle of the front lower crossbeam 2. By having a recessed portion 2c in the middle of the front lower crossbeam 2, the overall rigidity of the front lower crossbeam 2 can be improved. At the same time, it also helps to increase the Z-axis dimension and arrangement space at the front of the engine compartment, which is beneficial for the installation of related accessories located at the front of the engine compartment.

[0092] Continue as Figure 10 and Figure 11 As shown, based on the concave middle section, preferably, the front lower crossbeam 2 of this embodiment also specifically includes a lower crossbeam outer plate 2a and a lower crossbeam inner plate 2b that are fastened together. Furthermore, based on the fact that the front lower crossbeam 2 is composed of fastened inner and outer plates, an outer cavity M is formed between the lower crossbeam outer plate 2a and the lower crossbeam inner plate 2b, while an inner cavity N is also formed between the lower crossbeam inner plate 2b and the headlight mounting plates 7 on both sides. At the same time, the inner cavities N on both sides are superimposed on the outer cavity M in the front-rear direction of the vehicle.

[0093] It is understandable that by making the front lower crossbeam 2 consist of a lower crossbeam outer plate 2a and a lower crossbeam inner plate 2b fastened together, and by forming an outer cavity M and an inner cavity N superimposed between the lower crossbeam outer plate 2a, the lower crossbeam inner plate 2b and the headlight mounting plate 7, this embodiment can utilize a high-strength cavity superposition structure to ensure the connection strength between the front lower crossbeam 2 and the headlight mounting plate 7, thereby helping to transfer the collision force borne by the front lower crossbeam 2 to the headlight mounting plate 7 on the side, so as to achieve the same effect of improving collision safety.

[0094] In this embodiment, it is still by Figures 1 to 4 As shown, in a preferred embodiment, the side bearing rings 200 on both sides each include a headlight mounting plate 7 on the same side, a front connecting beam 9 connecting the headlight mounting plate 7 and the front wheel arch side beam 10 on the same side, and a headlight connecting plate 8 connecting the headlight mounting plate 7 and the front wheel arch side beam 10 on the same side.

[0095] At this point, the side load-bearing rings 200 on both sides are composed of headlight mounting plate 7, front connecting beam 9 and headlight connecting plate 8. It can be understood that this makes the structure of the side load-bearing rings 200 relatively simple and helps in the design and fabrication of the side load-bearing rings 200.

[0096] The interior of the side load-bearing ring 200, which consists of the headlight mounting plate 7, the front connecting beam 9, and the headlight connecting plate 8, is the mounting space for the vehicle's headlights. Furthermore, in practice, in addition to the headlight mounting plate 7, the headlight connecting plate 8 and the front connecting beam 9, which constitute the side load-bearing ring 200, can also be made of sheet metal, and they can be welded together with the headlight mounting plate 7 and the front wheel arch side beam 10.

[0097] Based on the fact that each side bearing ring 200 is composed of a headlight mounting plate 7, a front connecting beam 9, and a headlight connecting plate 8, preferably, in this embodiment, the front connecting beam 9 and the headlight mounting plate 7 can be connected to the front upper crossbeam 1, while the headlight connecting plate 8 and the front connecting beam 9 can be connected to the front wheel arch side beam 10.

[0098] This allows the front connecting beam 9 and the headlight mounting plate 7 to intersect and connect with the front upper crossbeam 1, and also allows the headlight connecting plate 8 and the front connecting beam 9 to intersect and connect with the front wheel arch side beam 10. This multi-sheet metal overlapping connection method can also ensure the connection reliability between the front load-bearing ring 100, the side load-bearing ring 200 and the front wheel arch side beam 10, which helps to improve the collision force transmission performance of the collision force transmission channel formed by the above three.

[0099] Furthermore, it should be noted that, given that the headlight mounting plate 7 serves as a component of both the front load-bearing ring 100 and the side load-bearing ring 200, structurally, see [reference needed]. Figure 4 As shown, the headlight mounting plate 7 in this embodiment is generally L-shaped and mainly includes a lower part 7a and a side part 7b.

[0100] In this embodiment, the lower front crossbeam 2 and the middle crossbeam connecting plate 6 located at the end of the middle front crossbeam 3 are mainly connected to the intersection between the lower part 7a and the side part 7b. The upper front crossbeam 1 and the front connecting beam 9 are connected to the top of the side part 7b, and the headlight connecting plate 8 is connected to the lower part 7a. Thus, this embodiment can organically connect the front load-bearing ring 100 and the side load-bearing rings 200 on both sides mainly through the connecting function of the headlight mounting plate 7, so as to form the front force transmission structure of this embodiment.

[0101] Additionally, it is worth noting that at the intersection of the lower portion 7a and the side portion 7b of the headlight mounting plates 7 on each side, the front side of this intersection is generally connected to the energy-absorbing box in the overall vehicle body to realize the setting of the front anti-collision beam, while the rear side of this intersection is usually connected to the front end of the engine compartment longitudinal beam. In this way, not only can the connection reliability between the engine compartment longitudinal beam and the front anti-collision beam assembly be guaranteed, but the front anti-collision beam assembly and the engine compartment longitudinal beam can also be effectively connected to form an X-direction collision force transmission channel.

[0102] Continue as Figure 12 As shown, in a preferred embodiment, along the direction pointing to the front wheel arch side beam 10, the width t of the front connecting beams 9 on each side gradually decreases in the left-right direction of the vehicle. In this case, by making the width t of the front connecting beams 9 gradually decrease in the left-right direction of the vehicle, the front connecting beams 9 on both sides can form a "trumpet-shaped" connection structure that is wider at the front and narrower at the rear.

[0103] Furthermore, by utilizing the "trumpet-shaped" structural design of the front connecting beam 9, this embodiment achieves a connection where the large cross-section of the front connecting beam 9 is matched with the intersection of the front load-bearing ring 100 and the side load-bearing ring 200, and the small cross-section of the front connecting beam 9 is connected with the front wheel arch side beam 10. On one hand, this increases the structural strength at the intersection of the front of the side load-bearing ring 200 and the front load-bearing ring 100, ensuring the load-bearing performance of the front of the side load-bearing ring 200; on the other hand, it also enables a gradual change in the load-bearing strength of the front connecting beam 9, which is beneficial to improving the crumple energy absorption effect of the front connecting beam 9 during a collision.

[0104] In this embodiment, based on the intersection and connection of the front connecting beam 9 and the headlight mounting plate 7 on each side with the front upper crossbeam 1, the following continues... Figures 13 to 15 As shown, in a preferred embodiment, a cavity is formed between the headlight mounting plate 7 on each side and the front connecting beam 9 on the same side. At the same time, a headlight mounting reinforcement plate 13 is also connected to one side of each headlight mounting plate 7, and a cavity is also formed between the headlight mounting plate 7 and the headlight mounting reinforcement plate 13.

[0105] At this time, the cavity formed between the headlight mounting plate 7 and the front connecting beam 9 is also Figure 14 The first cavity K, the cavity formed between the headlight mounting plate 7 and the headlight mounting reinforcement plate 13 is... Figure 15 The second cavity L is located within the headlight mounting plate 7. The aforementioned headlight mounting reinforcement plate 13 is also made of sheet metal and is fixed to one side of the headlight mounting plate 7 by welding.

[0106] Understandably, by setting the headlight mounting reinforcement plate 13, the structural strength at the headlight mounting plate 7 location can be increased, thereby improving the stability of the vehicle's headlights after installation. Furthermore, in specific implementation, in addition to setting the headlight mounting reinforcement plate 13 at each side of the headlight mounting plate 7, of course, as... Figure 11 As shown, headlight reinforcement plates 12 can be further provided at each headlight mounting plate 7. The headlight reinforcement plates 12 are also made of sheet metal and can be arranged by welding. Mounting points for mounting accessories at the front of the cabin can also be provided on the headlight reinforcement plates 12.

[0107] Furthermore, it is also understandable that by constructing cavities between the headlight mounting plate 7 and the front connecting beam 9, and between the headlight mounting plate 7 and the headlight mounting reinforcement plate 13, this embodiment can utilize the high structural strength of the cavities to ensure the structural strength of the headlight mounting plate 7 and the connection strength between the headlight mounting plate 7 and the front connecting beam 9 and other peripheral components, thereby helping to improve the overall stability of the forward force transmission structure of the cabin.

[0108] Still Figure 15 As shown in the figure, in a preferred embodiment, this embodiment has a U-shaped overlapping part S between the front upper crossbeam 1, the front connecting beam 9, and the headlight mounting plate 7, based on the intersection and connection of the front upper crossbeam 1, the front connecting beam 9 on each side, and the front upper crossbeam 1.

[0109] In the aforementioned superimposed portion S, the overlapping parts of the front upper crossbeam 1 and the front connecting beam 9 both have a "U"-shaped structure, and the superimposed portions can be connected by welding. By forming a "U"-shaped superimposed portion S between the front upper crossbeam 1 and the front connecting beam 9, it is understandable that this obviously helps to increase the structural strength of the front upper crossbeam 1 and the front connecting beam 9 themselves, as well as the connection strength between them.

[0110] In this embodiment, continue as follows Figure 16 and Figure 17 As shown, in a preferred embodiment, the front end of each side front wheel arch side beam 10 has a box-shaped corner structure 10a, and this corner structure 10a is specifically a semi-box-shaped box structure. Meanwhile, the rear end of each side front connecting beam 9 and the upper end of the headlight connecting plate 8 are connected to the corner structure 10a on the same side front wheel arch side beam 10, and combined with… Figure 18 and Figure 19 As shown, the rear end of the front connecting beam 9 and the upper end of the headlight connecting plate 8 also have "L"-shaped connecting sections that match the corner structure 10a.

[0111] At this time, by setting a box-shaped corner structure 10a at the front end of the front wheel arch side beam 10, and making the rear end of the front connecting plate 9 and the upper end of the headlight connecting plate 8 form an "L"-shaped connection section that matches the corner structure 10a, it helps to achieve multi-dimensional matching connection between the front connecting plate 9 and the headlight connecting plate 8 and the front wheel arch side beam 10, which can improve the connection strength between the three, thereby helping to ensure that the collision force at the side bearing ring 200 is effectively transmitted to the front wheel arch side beam 10.

[0112] The front load-bearing structure of the cabin in this embodiment adopts the above structure, which forms a front load-bearing ring 100 at the front of the cabin, consisting of front upper and lower crossbeams and headlight mounting plates 7 on both sides, and a side load-bearing ring 200 consisting of headlight mounting plates 7 on each side, headlight connecting plates 8 and front connecting beams 9. Furthermore, a load-bearing structure 300 is provided in the front load-bearing ring 100, which includes a transversely arranged front middle crossbeam 3 and a longitudinally arranged middle connecting beam 4.

[0113] Therefore, this embodiment not only utilizes the high strength of the ring structure and the load-bearing and strengthening properties of the load-bearing structure 300 to increase the structural strength of the front end of the engine compartment, but also utilizes the force transmission channels formed by each load-bearing ring and the load-bearing structure 300 to help distribute the collision force at the front end of the engine compartment, which can help improve the collision safety of the whole vehicle and thus help improve the overall quality of the vehicle.

[0114] Moreover, as Figure 20 As shown, in the event of a vehicle collision, particularly a frontal or offset collision, the impact force is transmitted via the front lower crossbeam 2 and the front middle crossbeam 3, and further through the front load-bearing ring 100 to the side load-bearing rings 200 on both sides, and then through the side load-bearing rings 200 to the rear front wheel arch side beam 10. Simultaneously, in addition to dispersing the impact force rearward, energy is absorbed through the crumple zones at locations such as the middle beam connecting plate 5 and the side middle crossbeam connecting plates 6. This embodiment can also absorb impact energy to reduce the damage caused by the collision.

[0115] Example 2

[0116] This embodiment relates to a vehicle, which is equipped with the front engine compartment force transmission structure as described in Embodiment 1.

[0117] In the vehicle of this embodiment, apart from the aforementioned front engine compartment force transmission structure, other structures in the vehicle body can be referred to the relevant structures in existing vehicle bodies.

[0118] Moreover, by incorporating the front engine compartment force transmission structure as described in Embodiment 1, the vehicle in this embodiment can increase the structural strength of the front engine compartment, which helps to disperse the collision force at the front engine compartment, thereby improving the overall collision safety of the vehicle and contributing to the improvement of the overall quality of the vehicle.

[0119] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A force transmission structure at the front of an aircraft cabin, characterized in that: It includes a front bearing ring (100) located in the middle, and side bearing rings (200) located on the left and right sides respectively. The front end of each side bearing ring (200) is connected to the front bearing ring (100), and the rear end of each side bearing ring (200) is connected to the front wheel arch side beam (10) on the same side. The front load-bearing ring (100) is provided with a load-bearing structure (300), the load-bearing structure (300) has a longitudinal part arranged along the vertical direction of the whole vehicle and a transverse part arranged along the horizontal direction of the whole vehicle, and the load-bearing structure (300) divides the front load-bearing ring (100) into multiple ring structures. The front load-bearing ring (100) includes an upper front crossbeam (1) and a lower front crossbeam (2) arranged vertically, as well as headlight mounting plates (7) on the left and right sides respectively. The longitudinal portion is connected between the upper front crossbeam (1) and the lower front crossbeam (2), and the transverse portion is connected between the headlight mounting plates (7) on both sides. The longitudinal portion includes an intermediate connecting beam (4) connecting the upper front crossbeam (1) and the lower front crossbeam (2), and the transverse portion includes a front middle crossbeam (3) connecting the headlight mounting plates (7) on both sides. The intermediate connecting beam (4) is located in the middle of the vehicle in the left-right direction. The front middle crossbeam (3) is arranged close to the front lower crossbeam (2), and the intermediate connecting beam (4) and the front middle crossbeam (3) are connected together.

2. The forward force transmission structure of the cabin according to claim 1, characterized in that: The intermediate connecting beam (4) and the front crossbeam (3) are connected by an intermediate beam connecting plate (5); The bottom end of the intermediate beam connecting plate (5) is fixed to the front crossbeam (3), and the top end of the intermediate beam connecting plate (5) is connected to the intermediate connecting beam (4) by a single connector (11). An energy-absorbing cavity (Q) with an open bottom is formed between the intermediate beam connecting plate (5) and the intermediate connecting beam (4).

3. The forward force transmission structure of the cabin according to claim 1, characterized in that: The two ends of the front crossbeam (3) are connected to the headlight mounting plates (7) on both sides through the crossbeam connecting plate (6); Both sides of the middle crossbeam connecting plate (6) extend along the front and rear direction of the whole vehicle, and the front end of each side of the middle crossbeam connecting plate (6) is connected to the front middle crossbeam (3). The rear end of each side of the middle crossbeam connecting plate (6) is provided with a connecting flange (6a), and the connecting flange (6a) is connected to the headlight connecting plate (8).

4. The forward force transmission structure of the cabin according to claim 1, characterized in that: The middle part of the front lower crossbeam (2) is recessed along the vertical direction of the whole vehicle, and the front lower crossbeam (2) includes a lower crossbeam outer plate (2a) and a lower crossbeam inner plate (2b) that are fastened together. The lower crossbeam outer plate (2a) and the lower crossbeam inner plate (2b) form an outer cavity (M), and the lower crossbeam inner plate (2b) and the headlight mounting plates (7) on both sides form inner cavities (N). The inner cavities (N) on both sides are superimposed on the outer cavity (M) in the front-rear direction of the vehicle.

5. The forward force transmission structure of the cabin according to any one of claims 1 to 4, characterized in that: Each of the side bearing rings (200) includes the headlight mounting plate (7), the front connecting beam (9) connecting the headlight mounting plate (7) and the front wheel arch side beam (10), and the headlight connecting plate (8) connecting the headlight mounting plate (7) and the front wheel arch side beam (10). The front connecting beam (9) and the headlight mounting plate (7) are connected together with the front upper crossbeam (1), and the headlight connecting plate (8) and the front connecting beam (9) are connected together with the front wheel arch side beam (10).

6. The forward force transmission structure of the cabin according to claim 5, characterized in that: Along the direction pointing to the front wheel arch side beam (10), the width (t) of the front connecting beam (9) gradually decreases along the left-right direction of the entire vehicle; and / or, A cavity is formed between the headlight mounting plate (7) on each side and the front connecting beam (9) on the same side. A headlight mounting reinforcement plate (13) is connected to one side of the headlight mounting plate (7) on each side, and a cavity is formed between the headlight mounting plate (7) and the headlight mounting reinforcement plate (13).

7. The forward force transmission structure of the cabin according to claim 5, characterized in that: A U-shaped overlapping portion (S) is formed between the upper front crossbeam (1) and the front connecting beams (9) on each side; and / or, The front end of each of the front wheel arch side beams (10) has a box-shaped corner structure (10a). The rear end of the front connecting beam (9) and the upper end of the headlight connecting plate (8) are connected to the corner structure (10a). The rear end of the front connecting beam (9) and the upper end of the headlight connecting plate (8) respectively form an "L"-shaped connection section that matches the corner structure (10a).

8. A vehicle, characterized in that: The vehicle is provided with a front engine compartment force transmission structure as described in any one of claims 1 to 7.

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