Threshold beam, frame, vehicle body structure and vehicle

Abstract

The utility model relates to a doorsill beam, a frame, a vehicle body structure and a vehicle, the doorsill beam comprises an inner plate, an outer plate and a doorsill beam reinforcer, the inner plate and the outer plate are mutually connected to form a containing cavity, and the doorsill beam reinforcer is installed in the containing cavity and connected with the inner plate and / or the outer plate; the doorsill beam reinforcer is arranged in the doorsill beam, and the doorsill beam reinforcer is provided with at least one reinforcing cavity, so that the strength and flexural rigidity of the doorsill beam are improved, and high structural strength and light weight of the doorsill beam are both considered.

Description

Technical Field

[0001] This application relates to the field of vehicles, and more particularly to a door sill beam, a frame, a body structure, and a vehicle. Background Technology

[0002] In related technologies, the sill beam of the vehicle frame has insufficient structural strength in lightweight solutions. Reinforcing ribs are usually used in the sill beam to improve its structural strength. However, reinforcing ribs not only increase the complexity of the process, leading to a decrease in production efficiency and an increase in process costs, but also sacrifice the lightweight nature of the sill beam structure. Therefore, it is difficult to guarantee the strength of the sill beam structure while achieving low cost and lightweight.

[0003] Based on the characteristics of relevant technologies, it is deduced that existing door sill beams have a technical problem of being unable to simultaneously achieve high structural strength and lightweight design. Summary of the Invention

[0004] This application provides a door sill beam, frame, body structure, and vehicle that achieves both high structural strength and lightweight design, thereby at least partially solving the aforementioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a door sill beam is provided, the door sill beam extending along the length direction of the vehicle body, the door sill beam comprising:

[0006] The inner and outer plates are connected to form a receiving cavity; and

[0007] Threshold beam reinforcement;

[0008] The threshold beam reinforcement is installed inside the receiving cavity and is connected to the inner plate and / or the outer plate.

[0009] Optionally, the sill beam reinforcement includes an inner sill reinforcement plate, which abuts against the inner plate and has an inner reinforcement cavity.

[0010] Optionally, the edge of the inner reinforcing cavity is arc-shaped.

[0011] Optionally, the inner sill reinforcement plate protrudes in a direction away from the inner plate to form the inner reinforcement cavity.

[0012] Optionally, the sill beam reinforcement includes at least one outer sill reinforcement plate, each of the outer sill reinforcement plates abutting against the outer plate and having an outer reinforcement cavity.

[0013] Optionally, the edge of the outer reinforcing cavity is arc-shaped.

[0014] Optionally, the outer sill reinforcement plate protrudes in a direction away from the outer plate to form the outer reinforcement cavity.

[0015] Optionally, the sill beam reinforcement includes an inner sill reinforcement plate that abuts against the inner plate and has an inner reinforcement cavity; the sill beam reinforcement also includes at least one outer sill reinforcement plate that abuts against the outer plate and has an outer reinforcement cavity; wherein the inner reinforcement cavity and at least one outer reinforcement cavity are staggered in the extension direction of the sill beam reinforcement.

[0016] Optionally, the sill beam reinforcement includes an inner sill support plate, which abuts against the inner plate.

[0017] Optionally, the inner sill support plate is provided with a second weight-reducing hole.

[0018] Optionally, the ratio of the second weight-reducing hole to the area of ​​the inner sill support plate ranges from 3% to 7%.

[0019] Optionally, the sill beam reinforcement further includes an inner sill reinforcement plate, which has an inner reinforcement cavity; wherein the inner sill support plate is located between the inner sill reinforcement plate and the inner plate.

[0020] Optionally, the sill beam reinforcement includes an outer sill support plate, which abuts against the outer plate.

[0021] Optionally, the outer sill support plate is provided with a second weight-reducing hole.

[0022] Optionally, the ratio of the second weight-reducing hole to the area of ​​the outer sill support plate ranges from 3% to 7%.

[0023] Optionally, the sill beam reinforcement further includes an outer sill reinforcement plate, which has an outer reinforcement cavity; wherein the outer sill support plate is located between the outer sill reinforcement plate and the outer plate.

[0024] According to a second aspect of this application, a vehicle frame is provided, including a sill beam as described in any of the above embodiments.

[0025] Optionally, it also includes a seat mounting beam, the seat mounting beam including a main body and at least one connecting part, each of the connecting parts being connected to a corresponding side of the main body; wherein the main body is connected to the sill beam through the connecting part.

[0026] Optionally, the frame includes two opposing sill beams, and the seat mounting crossbeam includes two connecting portions connected to opposite sides of the main body; wherein the main body is connected to the two sill beams via the two connecting portions.

[0027] Optionally, the seat mounting beam is also provided with a plurality of first weight-reducing holes.

[0028] Optionally, the strength of the main body is greater than the strength of at least one of the connecting parts.

[0029] Optionally, the stiffness of the main body is greater than the stiffness of at least one of the connecting parts.

[0030] Optionally, the main body is provided with a reinforcing part, which is used to enhance the bending stiffness of the cross section of the main body.

[0031] Optionally, the reinforcing part includes a wavy groove.

[0032] Optionally, the main body is provided with fixing holes, which correspond to the bends of the reinforcing part; wherein, the fixing holes are used to fix the battery pack mounting beam.

[0033] Optionally, the seat mounting beam further includes a variable cross-section located on at least one side of the reinforcement, wherein the seat mounting beam is bent at the variable cross-section to form a step, wherein the height of the reinforcement is greater than the height of the variable cross-section.

[0034] Optionally, it also includes a battery pack mounting beam for mounting the battery pack; wherein the battery pack mounting beam is mounted on the seat mounting beam so that the battery pack is mounted on the seat mounting beam via the battery pack mounting beam.

[0035] Optionally, the frame is used for a vehicle, wherein, in the height direction of the vehicle, the battery pack mounting beam is mounted between the seat mounting beam and the battery pack.

[0036] Optionally, the battery pack includes an upper cover and a lower cover that are connected to each other; wherein the battery pack mounting beam is mounted on the upper surface of the upper cover.

[0037] Optionally, the battery pack mounting beam includes a seat connection part and an upper cover plate connection part, wherein the upper cover plate connection part is fixed to the upper cover plate connection part of the seat mounting beam.

[0038] Optionally, at least one upper cover plate connecting portion, each of the upper cover plate connecting portions being bent and connected to the corresponding side of the seat connecting portion and extending in a direction away from the seat connecting portion, the upper cover plate connecting portion being fixed to the upper cover plate.

[0039] Optionally, at least one of the upper cover plate connecting portions includes two upper cover plate connecting portions, and the two upper cover plate connecting portions are respectively disposed on opposite sides of the seat connecting portion.

[0040] Optionally, the battery pack includes an energy-absorbing element for absorbing impact forces received by the battery pack.

[0041] Optionally, the energy-absorbing element includes a first energy-absorbing section;

[0042] The battery pack also includes an upper cover plate and a lower protective plate that are connected to each other, and the upper cover plate and the lower protective plate have an overlapping area;

[0043] The first energy-absorbing part is located between the upper cover plate and the lower guard plate, and is disposed in the overlapping area.

[0044] Optionally, the energy-absorbing element includes a second energy-absorbing section;

[0045] The battery pack also includes an upper cover plate, a lower protective plate, and a cold plate. The upper cover plate and the lower protective plate are connected to each other and form a mounting cavity. The cold plate is installed in the mounting cavity.

[0046] The second energy-absorbing part is located between the lower guard plate and the cold plate.

[0047] Optionally, the energy-absorbing element includes a fin portion, and the fin portion is provided with a plurality of recesses arranged side by side.

[0048] According to a third aspect of this application, a vehicle body structure is provided, including a sill beam as described in any of the above embodiments, or a vehicle frame as described in any of the above embodiments.

[0049] According to a fourth aspect of this application, a vehicle is provided, including a sill beam as described in any of the above embodiments, and / or a frame as described in any of the above embodiments, or a body structure as described in the above embodiments.

[0050] In the vehicle frame of this application embodiment, by providing the sill beam reinforcement inside the sill beam, the sill beam reinforcement having at least one reinforcement cavity, the strength and bending stiffness of the sill beam are improved, thereby balancing the high structural strength and lightweight of the sill beam.

[0051] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0054] Figure 1This is a schematic diagram of the structure of the threshold beam after removing the outer plate in an exemplary embodiment of this disclosure;

[0055] Figure 2 This is a side view of the sill beam reinforcement in the sill beam provided in an exemplary embodiment of this disclosure;

[0056] Figure 3 This is a schematic diagram of the structure of the sill beam reinforcement in the sill beam provided in the exemplary embodiment of this disclosure;

[0057] Figure 4 This is a schematic diagram of the internal structure of the sill beam reinforcement member in the sill beam provided in the exemplary embodiment of this disclosure after the outer sill support plate has been removed;

[0058] Figure 5 This is a schematic diagram of the structure of the outer sill reinforcing plate and the outer reinforcing cavity of the sill beam reinforcement member provided in the exemplary embodiment of this disclosure;

[0059] Figure 6 This is a schematic diagram of the structure of the inner sill reinforcing plate and the inner reinforcing cavity of the sill beam reinforcement member provided in the exemplary embodiment of this disclosure;

[0060] Figure 7 This is a schematic diagram of the overall structure of the vehicle frame provided in an exemplary embodiment of this disclosure;

[0061] Figure 8 This is an exploded schematic diagram of the battery pack anti-collision structure in the vehicle frame provided in an exemplary embodiment of this disclosure;

[0062] Figure 9 This is a schematic diagram of the structure of the energy-absorbing component in the vehicle frame provided in an exemplary embodiment of this disclosure;

[0063] Figure 10 This is a schematic diagram of the structure of the seat mounting beam in the vehicle frame provided in an exemplary embodiment of this disclosure;

[0064] Figure 11 This is a top view of the seat mounting beam in the vehicle frame provided in an exemplary embodiment of this disclosure.

[0065] Explanation of reference numerals in the attached figures:

[0066] 1. Seat mounting beam; 11. Main body; 12. Connecting part; 13. First weight reduction hole; 14. Reinforcing part; 15. Groove; 16. Fixing hole; 17. Variable cross section;

[0067] 2. Battery pack anti-collision structure; 21. Battery pack; 22. Battery pack mounting beam; 23. Top cover plate; 24. Lower guard plate; 25. Seat connection part; 26. Top cover plate connection part; 27. Energy-absorbing component; 201. First energy-absorbing part; 202. Second energy-absorbing part; 203. Fin part; 204. Recessed part;

[0068] 3. Sill beam reinforcement; 31. Inner sill support plate; 32. Inner sill reinforcement plate; 33. Inner reinforcement cavity; 34. Outer sill support plate; 35. Outer sill reinforcement plate; 36. Outer reinforcement cavity; 37. Second weight reduction hole;

[0069] 4. Threshold beam; 41. Outer panel; 42. Inner panel. Detailed Implementation

[0070] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0071] According to the first aspect of this application, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The sill beam 4 provided in this disclosure extends along the length of the vehicle body. The sill beam 4 includes an inner plate 42, an outer plate 41, and a sill beam reinforcement 3. The inner plate 42 and the outer plate 41 are connected to each other to form a receiving cavity. The sill beam reinforcement 3 is installed in the receiving cavity and is connected to the inner plate 42 and / or the outer plate 41.

[0072] In this embodiment, by providing a threshold beam reinforcement 3 inside the threshold beam 4, the threshold beam reinforcement 3 is provided with at least one reinforcement cavity to improve the strength and bending stiffness of the threshold beam 4, thereby taking into account both the high structural strength and lightweight of the threshold beam 4.

[0073] In one embodiment, please refer to Figure 4 and Figure 6 The door sill beam reinforcement includes an inner door sill reinforcement plate, which abuts against the inner plate and has an inner reinforcement cavity.

[0074] The sill beam reinforcement 3 also includes an inner sill support plate 31, and an inner sill reinforcement plate 32 is installed on the side of the inner sill support plate 31 away from the inner plate 42.

[0075] The inner sill reinforcement plate 32 is installed on the side of the inner sill support plate 31 away from the inner plate 42. The inner sill reinforcement plate 32 is provided with at least one inner reinforcement cavity 33. The inner reinforcement cavity 33 can also be formed by the inner sill reinforcement plate 32 and the inner sill support plate 31 surrounding each other.

[0076] The inner reinforcing cavity 33 may include four first sub-cavities arranged along the length of the vehicle.

[0077] Understandably, the inner reinforcing cavity 33 has good impact absorption performance, which can efficiently disperse and absorb collision energy, thereby improving the stability and load-bearing capacity of the sill beam 4.

[0078] In one embodiment, the edge of the inner reinforcing cavity is arc-shaped.

[0079] Understandably, the curved edge of the inner reinforcing cavity can improve the space utilization within the inner sill reinforcing plate 32, allowing for a larger inner reinforcing cavity and providing impact absorption performance to the inner reinforcing cavity 33.

[0080] In one embodiment, the inner sill reinforcement plate protrudes in a direction away from the inner plate to form an inner reinforcement cavity.

[0081] Understandably, the inner reinforcing cavity and the inner sill reinforcing plate are integrally molded to simplify the process and thus reduce costs.

[0082] In one embodiment, please refer to Figure 4 and Figure 5 The sill beam reinforcement includes at least one outer sill reinforcement plate, each outer sill reinforcement plate abutting against the outer plate and having an outer reinforcement cavity.

[0083] The outer reinforcing cavity 36 may include three second sub-cavities arranged along the length of the vehicle.

[0084] The shapes of the first and second sub-cavities can complement each other to achieve a larger combined volume of the inner reinforcing cavity 33 and the outer reinforcing cavity 36, thus better mitigating the impact of side collisions.

[0085] Understandably, the outer reinforcing cavity 36 has good impact absorption performance, which can efficiently disperse and absorb collision energy, thereby improving the stability and load-bearing capacity of the sill beam 4.

[0086] In one embodiment, the edge of the outer reinforcing cavity is arc-shaped.

[0087] Understandably, the curved edge of the outer reinforcing cavity can improve the space utilization within the outer sill reinforcing plate 35, allowing for a larger area of ​​outer reinforcing cavity and providing impact absorption performance for the outer reinforcing cavity 36.

[0088] In one embodiment, the outer sill reinforcement plate protrudes in a direction away from the outer plate to form an outer reinforcement cavity.

[0089] Understandably, the outer reinforcing cavity and the outer sill reinforcing plate are integrally molded to simplify the process and thus reduce costs.

[0090] In one embodiment, the sill beam reinforcement includes an inner sill reinforcement plate that abuts against an inner plate and has an inner reinforcement cavity; the sill beam reinforcement also includes at least one outer sill reinforcement plate that abuts against an outer plate and has an outer reinforcement cavity; wherein the inner reinforcement cavity and at least one outer reinforcement cavity are staggered in the extending direction of the sill beam reinforcement.

[0091] Understandably, the inner reinforcing cavity 33 and the outer reinforcing cavity 36 are arranged in an alternating manner. When the sill beam 4 is deformed by an impact, the inner reinforcing cavity 33 and the outer reinforcing cavity 36 are interlocked, which can more stably complete the dispersion and absorption of collision energy, thereby reducing the damage to the vehicle body.

[0092] In one embodiment, please refer to Figure 6 The door sill beam reinforcement includes an inner door sill support plate, which abuts against the inner plate.

[0093] Understandably, the inner sill support plate 31 is close to the inner plate 42 of the sill beam 4, which directly strengthens the bending and torsional stiffness of the inner plate 42 of the sill beam 4.

[0094] In one embodiment, the inner sill support plate is provided with a second weight-reducing hole.

[0095] Understandably, the second weight-reducing hole 37 is used to reduce the weight of the sill beam reinforcement 3 in order to meet the requirements of lightweighting.

[0096] It should be noted that the second weight-reducing hole 37 is provided on the inner sill support plate 31, which can reduce the weight of the sill beam reinforcement 3.

[0097] In one embodiment, the ratio of the second weight-reducing hole 37 to the area of ​​the inner sill support plate 31 ranges from 3% to 7%.

[0098] The ratio is any one of 3%, 4%, 5%, 6%, or 7%.

[0099] It is understandable that when the ratio of the second weight-reducing hole 37 to the area of ​​the inner sill support plate 31 is less than 3%, the weight-reducing effect will be poor; when the ratio of the second weight-reducing hole 37 to the area of ​​the inner sill support plate 31 is greater than 7%, it is easy to affect the strength of the inner sill support plate 31, resulting in poor support effect of the inner sill support plate 31 on the sill beam 4.

[0100] In this embodiment, the ratio of the area of ​​the second weight-reducing hole 37 to the area of ​​the inner sill support plate 31 is in the range of 3% to 7%, which can meet the requirements of lightweight frame while taking into account the support effect on sill beam 4.

[0101] In one embodiment, the sill beam reinforcement further includes an inner sill reinforcement plate, which has an inner reinforcement cavity; wherein, the inner sill support plate is located between the inner sill reinforcement plate and the inner plate.

[0102] In one embodiment, please refer to Figure 4 and Figure 5 The threshold beam reinforcement 3 also includes an outer threshold support plate 34, which is set to abut against the outer plate 41.

[0103] Understandably, the outer sill support plate 34 abuts against the inner plate 42 of the sill beam 4, directly strengthening the bending and torsional stiffness of the inner plate 42 of the outer sill beam.

[0104] In one embodiment, the outer sill support plate is provided with a second weight-reducing hole.

[0105] Understandably, the second weight-reducing hole 37 is used to reduce the weight of the sill beam reinforcement 3 in order to meet the requirements of lightweighting.

[0106] It should be noted that the second weight-reducing hole 37 is provided on the outer sill support plate, which can reduce the weight of the sill beam reinforcement 3.

[0107] In one embodiment, the ratio of the second weight-reducing hole to the area of ​​the outer sill support plate ranges from 3% to 7%.

[0108] In this embodiment, the ratio of the second weight-reducing hole 37 to the area of ​​the outer sill support plate is in the range of 3% to 7%, which can meet the requirements of lightweight frame while taking into account the support effect on sill beam 4.

[0109] In one embodiment, the sill beam reinforcement further includes an outer sill reinforcement plate, which has an outer reinforcement cavity; wherein, the outer sill support plate is located between the outer sill reinforcement plate and the outer plate.

[0110] Understandably, the outer sill support plate 34 is located between the outer sill reinforcement plate and the outer plate, directly enhancing the bending and torsional stiffness of the sill beam 4.

[0111] In one embodiment, the inner reinforcing cavity 33 and / or the outer reinforcing cavity 36 are hemispherical hollow structures.

[0112] Understandably, the hemispherical hollow structure allows for a larger volume of the inner reinforcing cavity 33 and / or the outer reinforcing cavity 36, thus better reducing the damage to the vehicle body during a collision.

[0113] According to the second aspect of this application, please refer to Figure 7 A vehicle frame is provided, including the sill beam 4 of any of the above embodiments.

[0114] In one embodiment, a threshold beam reinforcement 3 is provided inside the threshold beam 4.

[0115] It is understandable that by setting the sill beam reinforcement 3, which is directly or indirectly connected to the sill beam 4, the rigidity of the sill beam 4 is improved.

[0116] In this embodiment, by providing a sill beam reinforcement 3 inside the sill beam 4, the sill beam reinforcement 3 is provided with at least one reinforcement cavity to improve the strength and bending stiffness of the sill beam, thereby taking into account both the high structural strength and lightweight of the sill beam 4 and improving the side impact protection performance of the vehicle.

[0117] In one embodiment, the vehicle frame includes a seat mounting crossbeam 1 and a battery pack anti-collision structure 2. The battery pack anti-collision structure 2 includes a battery pack mounting crossbeam 22 for mounting a battery pack 21. The battery pack mounting crossbeam 22 is mounted on the seat mounting crossbeam 1 so that the battery pack 21 is mounted on the seat mounting crossbeam 1 via the battery pack mounting crossbeam 22. By providing a sill beam reinforcement within the sill beam, the sill beam reinforcement having at least one reinforcing cavity, the strength and bending stiffness of the sill beam are improved, thereby balancing high structural strength and lightweight design of the sill beam and improving the vehicle's side impact resistance.

[0118] The battery pack mounting beam 22 can be fixedly connected to the seat mounting beam 1.

[0119] Understandably, by mounting the battery pack mounting beam 22 onto the seat mounting beam 1, the strength and bending stiffness of the seat mounting beam 1 are enhanced, thereby improving the vehicle's side impact resistance.

[0120] In one embodiment, the frame is used for a vehicle, wherein, in the height direction of the vehicle, a battery pack mounting beam 22 is mounted between a seat mounting beam 1 and a battery pack 21.

[0121] The battery pack mounting beam 22 can be installed between the seat mounting beam 1 and the battery pack 21 by means of bolts and screw holes.

[0122] In the height direction of the vehicle, the battery pack mounting beam 22 and the seat mounting beam 1 are at least partially overlapped, and the battery pack mounting beam 22 and the seat mounting beam 1 are fixedly connected at the overlap.

[0123] It is understandable that by having the battery pack mounting beam 22 and the seat mounting beam 1 overlap at least partially in the height direction of the vehicle, it is beneficial to reduce the occupancy of the lateral space inside the vehicle.

[0124] In this embodiment, the battery pack mounting beam 22 is installed between the seat mounting beam 1 and the battery pack 21, which can reduce the space occupied by the battery pack mounting beam 22 and the seat mounting beam 1 in the vehicle interior and improve the utilization rate of the vehicle interior space.

[0125] In one embodiment, please refer to Figure 8 The battery pack 21 includes an upper cover plate 23 and a lower guard plate 24 that are connected to each other; wherein, the battery pack mounting beam 22 is mounted on the upper surface of the upper cover plate 23.

[0126] The battery pack mounting beam 22 can be fixed to the upper cover plate 23 by means of bolts and screw holes.

[0127] The battery pack mounting beam 22 has evenly spaced connection holes, with one connection hole corresponding to another connection hole on the upper cover plate 23, and both are fixed by the same bolt.

[0128] Understandably, by evenly opening connection holes on the battery pack mounting beam 22, the stability of the connection between the battery pack mounting beam 22 and the upper cover plate 23 is improved.

[0129] In one embodiment, please refer to Figure 8 The battery pack mounting beam 22 includes a seat connection portion 25 and at least one upper cover plate connection portion 26. Each upper cover plate connection portion 26 is bent and connected to the corresponding side of the seat connection portion 25 and extends in a direction away from the seat connection portion 25. The seat connection portion 25 is fixed to the seat mounting beam 1, and the upper cover plate connection portion 26 is fixed to the upper cover plate 23.

[0130] The seat connecting part 25 and the upper cover connecting part 26 are integrally formed.

[0131] Understandably, the seat connecting part 25 and at least one upper cover connecting part 26 are used to fix the battery pack 21 to the seat mounting crossbeam 1 and the upper cover 23 respectively.

[0132] In one embodiment, please refer to Figure 8 At least one upper cover plate connecting part 26 includes two upper cover plate connecting parts 26, which are respectively disposed on opposite sides of the seat connecting part 25.

[0133] Understandably, by symmetrically arranging the upper cover connecting portion 26 on opposite sides of the seat connecting portion 25, the stability of the connection between the battery pack mounting beam 22 and the upper cover 23 is improved.

[0134] In one embodiment, please refer to Figure 9 The battery pack 21 includes an energy-absorbing element 27, which is used to absorb the impact force received by the battery pack 21.

[0135] Understandably, when dealing with side-pole impact conditions, the energy-absorbing component 27 can effectively disperse and absorb energy, preventing direct damage to the battery cell.

[0136] In one embodiment, please refer to Figure 8 and Figure 9 The energy-absorbing component 27 includes a first energy-absorbing part 201; the battery pack 21 also includes an upper cover plate 23 and a lower guard plate 24 that are connected to each other, and the upper cover plate 23 and the lower guard plate 24 have an overlapping area; wherein, the first energy-absorbing part 201 is located between the upper cover plate 23 and the lower guard plate 24 and is disposed in the overlapping area.

[0137] Understandably, the first energy-absorbing part 201 is located in the overlapping area between the upper cover plate 23 and the lower guard plate 24, and is used to prevent the upper cover plate 23 and the lower guard plate 24 from colliding and damaging each other.

[0138] In one embodiment, please refer to Figure 8 and Figure 9 The energy-absorbing component 27 includes a second energy-absorbing part 202; the battery pack 21 also includes an upper cover plate 23, a lower guard plate 24, a battery cell and a cold plate. The upper cover plate 23 and the lower guard plate 24 are connected to each other and form a mounting cavity. The battery cell and the cold plate are installed in the mounting cavity, and the cold plate is thermally connected to the battery cell. The second energy-absorbing part 202 is located between the lower guard plate 24 and the cold plate.

[0139] Understandably, the second energy-absorbing part 202 is located between the lower guard plate 24 and the cold plate to prevent the lower guard plate 24 and the cold plate from colliding and damaging each other.

[0140] In one embodiment, please refer to Figure 9 The energy-absorbing component 27 includes a fin portion 203, which has a plurality of recesses 204 arranged side by side.

[0141] Among them, the energy-absorbing component 27 can be a structure made of duplex steel, which has the characteristics of high strength, high rigidity, high ductility and impact toughness.

[0142] Among them, multiple recesses 204 arranged side by side are arranged at equal intervals.

[0143] Understandably, the recess 204 can enhance the energy absorption performance of the energy-absorbing component 27 in absorbing impact forces, thereby preventing the battery pack 21 from being damaged due to impact.

[0144] In one embodiment, the seat mounting beam 1 includes a main body 11 and at least one connecting part 12, each connecting part 12 being connected to a corresponding side of the main body 11; the frame also includes a sill beam 4; wherein the main body 11 is connected to the sill beam 4 via the connecting part 12.

[0145] The connecting part 12 includes a connecting body and a concave-convex surface located on the side of the connecting body away from the main body 11. The concave-convex surface is used for the connecting part 12 to be fixedly connected to the corresponding sill beam 4.

[0146] It is understandable that the concave part of the uneven surface is the spot welding position, and the convex part is the reinforcing rib. This can strengthen the strength of the overlap with the sill beam 4 to a certain extent, thereby improving the connection strength between the connecting part 12 and the sill beam 4.

[0147] In one embodiment, please refer to Figure 10 and Figure 11 The seat mounting beam 1 is also provided with multiple first weight reduction holes 13.

[0148] The first weight-reducing hole 13 can be a round hole, an elliptical hole, or a polygonal hole.

[0149] It is understandable that, while taking into account the load-bearing capacity of the seat mounting beam 1, the weight of the seat mounting beam 1 is reduced by opening the first weight-reducing hole 13 on the seat mounting beam 1, so as to meet the requirements of lightweight frame.

[0150] In one embodiment, the strength of the main body 11 is greater than the strength of at least one connecting part 12.

[0151] The strength of the material used to prepare the main body 11 is greater than the strength of the material used to prepare the connecting part 12.

[0152] It is understandable that, due to the difference in material properties between the connecting part 12 and the main body 11, the strength of the main body 11 is greater than that of the connecting part 12, causing the connecting part 12 to deform before the main body 11. This controls the collapse of the seat mounting beam 1 to occur first at the connecting part 12, which helps to reduce the amount of collapse intrusion into the passenger compartment and ensure the safety of the occupants.

[0153] In one embodiment, the stiffness of the main body 11 is greater than the stiffness of at least one connecting part 12.

[0154] It is understandable that the stiffness of the main body 11 is greater than that of the connecting part 12, so that the connecting part 12 deforms before the main body 11, which is beneficial to ensuring the safety of the occupants inside the vehicle.

[0155] It is understandable that the seat mounting beam 1 includes a main body 11 and two connecting parts 12. One end of the connecting part 12 is connected to the sill 4, and the other end is connected to the seat beam. The strength of the connecting part 12 is much lower than that of the main body 11. The overlapping position of the main body 11 and the connecting part 12 is a structure of variable cross section 17. During a collision, the middle of the main body 11 will not bend due to its high material strength and greater height relative to the variable cross section 17. This allows the area where the collision causes deformation to be controlled at the variable cross section 17 at the overlapping position, thus ensuring the stability of the deformation energy absorption area.

[0156] In one embodiment, please refer to Figure 10 and Figure 11 The main body 11 is provided with a reinforcing part 14, which is used to enhance the bending stiffness of the cross section of the main body 11.

[0157] Understandably, by setting up the reinforcement 14, the bending stiffness of the main body 11 section is improved, which further enhances the vehicle's side impact resistance and ensures the safety of the occupants.

[0158] In one embodiment, the reinforcement 14 extends in a meandering manner.

[0159] Among them, the reinforcing part 14 can be a curved structure.

[0160] The reinforcing part 14 can also be a stepped structure.

[0161] Understandably, by making the reinforcing part 14 meander and extend, the bending stiffness of the cross section of the main body part 11 is further improved.

[0162] In one embodiment, please refer to Figure 10 and Figure 11 The reinforcing part 14 includes a wavy groove 15.

[0163] The reinforcing part 14 includes a plurality of grooves 15, and adjacent grooves 15 may have the same size and dimensions.

[0164] Understandably, the wavy groove 15 can improve the cross-sectional stiffness and stability of the main body 11.

[0165] In one embodiment, please refer to Figure 10 and Figure 11 The main body 11 is provided with a fixing hole 16, which corresponds to the bend of the reinforcing part 14; wherein, the fixing hole 16 is used to fix the battery pack mounting beam 22.

[0166] The fixing hole 16 is located between the two crests of two adjacent wavy grooves 15.

[0167] Understandably, the mounting hole 16 is used to fix the battery pack mounting beam 22 with bolts. By aligning the mounting hole 16 with the bend of the reinforcement 14, space utilization can be enhanced.

[0168] In one embodiment, please refer to Figure 10 and Figure 11 The seat mounting beam 1 also includes a variable cross section 17 located on at least one side of the reinforcement 14, and the seat mounting beam 1 is bent at the variable cross section 17 to form a step.

[0169] Understandably, the step difference at the variable cross section 17 of the seat mounting beam 1 is used to increase the energy absorption space, so that when a side pole impact occurs, the variable cross section 17 deforms first to buffer part of the impact force, thereby controlling the crumple zone of the seat mounting beam 1. This helps to reduce the amount of intrusion into the passenger compartment and ensure the safety of the occupants.

[0170] In one embodiment, the two connecting portions 12 are symmetrically arranged about the main body portion 11.

[0171] Understandably, the symmetrical arrangement of the connecting parts 12 reduces costs while improving the stability of the connection between the connecting parts 12 and the sill beam 4.

[0172] In one embodiment, the battery pack anti-collision structure 2 includes an upper cover plate 23, on which three battery pack mounting beams 22 are provided, and the upper cover plate 23 can serve as the floor of the vehicle.

[0173] Among them, the three battery pack mounting beams 22 correspond to the three seat mounting beams 1, and the three seat mounting beams 1 surround to form the front and rear seat areas.

[0174] The thickness of the upper cover plate 23 ranges from 1 mm to 1.4 mm.

[0175] The thickness of the top cover plate 23 can be any one of 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, or 1.4 mm.

[0176] Understandably, when the thickness is reduced, the material strength of the top cover plate 23 needs to be increased to ensure the integrity and stability of the internal module structure when the upper part of the battery pack 21 is subjected to pressure.

[0177] Understandably, eliminating the traditional floor and using the top cover 23 directly as the floor of the entire vehicle is beneficial for reducing the weight of the vehicle body.

[0178] It should be noted that the battery pack mounting beam 22 and the seat mounting beam 1 partially overlap in the height direction, saving space in the vehicle. The saved space can be used to install a larger volume and capacity battery pack 21, thereby improving the vehicle's range performance.

[0179] In one embodiment, the frame also includes a side frame, and the lower guard plate 24 is integrated with the side frame.

[0180] Understandably, the integrated design of the lower guard plate 24 and the frame facilitates manufacturing and simplifies the structure.

[0181] According to a third aspect of this application, a vehicle body structure is provided, including a sill beam as described in any of the above embodiments, or a vehicle frame as described in any of the above embodiments.

[0182] According to a fourth aspect of this application, a vehicle is provided, including a sill beam as described in any of the above embodiments, and / or a frame as described in any of the above embodiments, or a body structure as described in the above embodiments.

[0183] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0184] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0185] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0186] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A threshold beam (4), characterized in that, The sill beam (4) extends along the length of the vehicle body, and the sill beam (4) includes: Inner plate (42) and outer plate (41) are connected to each other to form a receiving cavity; and Threshold beam reinforcement (3); The threshold beam reinforcement (3) is installed in the receiving cavity and connected to the inner plate (42) and / or the outer plate (41). The door sill beam reinforcement includes an inner door sill reinforcement plate (32), which abuts against the inner plate (42) and has an inner reinforcement cavity (33). The inner sill reinforcement plate (32) protrudes in a direction away from the inner plate (42) to form the inner reinforcement cavity (33).

2. The threshold beam (4) according to claim 1, characterized in that, The edge of the inner reinforcing cavity (33) is arc-shaped.

3. The threshold beam (4) according to claim 1, characterized in that, The threshold beam reinforcement (3) includes at least one outer threshold reinforcement plate (35), each of the outer threshold reinforcement plates (35) abuts against the outer plate (41) and is provided with an outer reinforcement cavity (36).

4. The threshold beam (4) according to claim 3, characterized in that, The edge of the outer reinforcing cavity (36) is arc-shaped.

5. The threshold beam (4) according to claim 3, characterized in that, The outer sill reinforcement plate (35) protrudes in a direction away from the outer plate (41) to form the outer reinforcement cavity (36).

6. The threshold beam (4) according to claim 1, characterized in that, The threshold beam reinforcement (3) further includes at least one outer threshold reinforcement plate (35), each of the outer threshold reinforcement plates (35) abutting against the outer plate (41) and having an outer reinforcement cavity (36); wherein the inner reinforcement cavity (33) and at least one of the outer reinforcement cavities (36) are staggered in the extension direction of the threshold beam reinforcement (3).

7. The threshold beam (4) according to claim 1, characterized in that, The sill beam reinforcement (3) includes an inner sill support plate (31), which abuts against the inner plate (42).

8. The threshold beam (4) according to claim 7, characterized in that, The inner sill support plate (31) is provided with a second weight reduction hole (37).

9. The threshold beam (4) according to claim 8, characterized in that, The ratio of the area of ​​the second weight-reducing hole (37) to the area of ​​the inner sill support plate (31) ranges from 3% to 7%.

10. The threshold beam (4) according to claim 7, characterized in that, The inner sill support plate (31) is located between the inner sill reinforcement plate (32) and the inner plate (42).

11. The threshold beam (4) according to claim 1, characterized in that, The threshold beam reinforcement (3) includes an outer threshold support plate (34), which abuts against the outer plate (41).

12. The threshold beam (4) according to claim 11, characterized in that, The outer sill support plate (34) is provided with a second weight reduction hole (37).

13. The threshold beam (4) according to claim 12, characterized in that, The ratio of the area of ​​the second weight-reducing hole (37) to the area of ​​the outer sill support plate (34) ranges from 3% to 7%.

14. The threshold beam (4) according to claim 11, characterized in that, The threshold beam reinforcement (3) also includes an outer threshold reinforcement plate (35), which has an outer reinforcement cavity (36); wherein the outer threshold support plate (34) is located between the outer threshold reinforcement plate (35) and the outer plate (41).

15. A vehicle frame, characterized in that, Includes the threshold beam (4) as described in any one of claims 1 to 14.

16. The frame according to claim 15, characterized in that, It also includes a seat mounting beam (1), which includes a main body (11) and at least one connecting part (12), each of the connecting parts (12) being connected to a corresponding side of the main body (11); wherein the main body (11) is connected to the sill beam (4) through the connecting part (12).

17. The frame according to claim 16, characterized in that, The frame includes two opposing sill beams (4), and the seat mounting crossbeam (1) includes two connecting portions (12) connected to opposite sides of the main body (11); wherein the main body (11) is connected to the two sill beams (4) through the two connecting portions (12).

18. The frame according to claim 16, characterized in that, The seat mounting beam (1) is also provided with a plurality of first weight-reducing holes (13).

19. The frame according to claim 16, characterized in that, The strength of the main body (11) is greater than the strength of at least one of the connecting parts (12).

20. The frame according to claim 16, characterized in that, The stiffness of the main body (11) is greater than the stiffness of at least one of the connecting parts (12).

21. The frame according to claim 16, characterized in that, The main body (11) is provided with a reinforcing part (14), which is used to enhance the bending stiffness of the cross section of the main body (11).

22. The frame according to claim 21, characterized in that, The reinforcing part (14) includes a wavy groove (15).

23. The frame according to claim 21, characterized in that, The main body (11) is provided with a fixing hole (16), which corresponds to the bend of the reinforcing part (14); wherein the fixing hole (16) is used to fix the battery pack mounting beam (22).

24. The frame according to claim 21, characterized in that, The seat mounting beam (1) further includes a variable cross section (17) located on at least one side of the reinforcement (14), the seat mounting beam (1) being bent at the variable cross section (17) to form a step, wherein the height of the reinforcement (14) is greater than the height of the variable cross section (17).

25. The frame according to claim 16, characterized in that, It also includes a battery pack mounting beam (22) for mounting a battery pack (21); wherein the battery pack mounting beam (22) is mounted on the seat mounting beam (1) so that the battery pack (21) is mounted on the seat mounting beam (1) via the battery pack mounting beam (22).

26. The frame according to claim 25, characterized in that, The frame is used for a vehicle, wherein, in the height direction of the vehicle, the battery pack mounting beam (22) is mounted between the seat mounting beam (1) and the battery pack (21).

27. The frame according to claim 25, characterized in that, The battery pack (21) includes an upper cover plate (23) and a lower guard plate (24) connected to each other; wherein the battery pack mounting beam (22) is mounted on the upper surface of the upper cover plate (23).

28. The frame according to claim 27, characterized in that, The battery pack mounting beam (22) includes a seat connection part (25) and an upper cover plate connection part (26), the upper cover plate connection part (26) of which is fixed to the seat mounting beam (1) and the upper cover plate connection part (26).

29. The frame according to claim 28, characterized in that, At least one upper cover plate connecting part (26), each of the upper cover plate connecting parts (26) is bent and connected to the corresponding side of the seat connecting part (25) and extends in a direction away from the seat connecting part (25), the upper cover plate connecting part (26) being fixed to the upper cover plate (23).

30. The frame according to claim 29, characterized in that, At least one of the upper cover plate connecting portions (26) includes two upper cover plate connecting portions (26), which are respectively disposed on opposite sides of the seat connecting portion (25).

31. The frame according to claim 25, characterized in that, The battery pack (21) includes an energy-absorbing element (27) for absorbing the impact force received by the battery pack (21).

32. The frame according to claim 31, characterized in that, The energy-absorbing component (27) includes a first energy-absorbing part (201); The battery pack (21) also includes an upper cover plate (23) and a lower cover plate (24) that are connected to each other, and the upper cover plate (23) and the lower cover plate (24) have an overlapping area; The first energy-absorbing part (201) is located between the upper cover plate (23) and the lower guard plate (24) and is disposed in the overlapping area.

33. The frame according to claim 31, characterized in that, The energy-absorbing component (27) includes a second energy-absorbing part (202); The battery pack (21) also includes an upper cover plate (23), a lower guard plate (24) and a cold plate. The upper cover plate (23) and the lower guard plate (24) are connected to each other and form a mounting cavity. The cold plate is installed in the mounting cavity. The second energy-absorbing part (202) is located between the lower guard plate (24) and the cold plate.

34. The frame according to claim 31, characterized in that, The energy-absorbing component (27) includes a fin portion (203), and the fin portion (203) is provided with a plurality of recesses (204) arranged side by side.

35. A vehicle body structure, characterized in that, Includes the sill beam (4) as described in any one of claims 1 to 14, and / or the frame as described in any one of claims 15 to 34.

36. A vehicle, characterized in that, This includes the door sill beam (4) as described in any one of claims 1 to 14, or the frame as described in any one of claims 15 to 34, or the body structure as described in claim 35.

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