Mounting beam assembly, floor assembly and vehicle

Abstract

The utility model relates to the field of carrier, disclose installation beam subassembly, floor assembly and carrier. Installation beam subassembly, include: beam body, the inside of beam body has the cavity, the side of beam body is equipped with the opening with the cavity intercommunication, the side of beam body is equipped with opening is used for connecting with floor, the reinforcing beam is set up in the cavity, and is connected with the beam body, and the side of reinforcing beam is used for connecting with floor close to the opening, and reinforcing beam is the composite material beam. Reinforcing beam of composite material, its density is far lower than steel, can reduce the weight of reinforcing part under the premise of providing equivalent or even higher specific strength, thereby providing direct support for the weight reduction of carrier, reducing energy consumption and improving endurance. Meanwhile, the reinforcing beam is built-in in the cavity of the beam body, can make full use of the space inside the beam body, that is, utilize the original structure space of the beam body, will not increase the volume outside the beam body additionally, is favorable for the compact design of the driving space, and avoids the excessive occupancy of the driving space by installation beam subassembly.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to mounting beam assemblies, floor assemblies, and vehicles. Background Technology

[0002] As a crucial safety component of a vehicle, the strength and stability of the seat's mounting structure directly affect the safety and comfort of the occupants. Seats are typically fixed to the vehicle floor via seat mounting beams, which not only provide support for the seat but also effectively transfer and bear loads in the event of a collision.

[0003] In related technologies, to improve the structural strength of the seat mounting beam, a common method is to weld reinforcing plates onto the beam itself. While this method can improve overall rigidity to some extent, it also significantly increases the weight of the beam, which is detrimental to lightweight vehicle design. Utility Model Content

[0004] In view of this, the present invention provides an installation beam assembly, a floor assembly, and a carrier to solve or improve the problem of excessive weight of the installation beam caused by welding reinforcing plates in related technologies.

[0005] In a first aspect, this utility model provides a mounting beam assembly for connection to the floor of a vehicle, comprising: The beam has a cavity inside, and one side of the beam has an opening that communicates with the cavity. The side of the beam with the opening is used to connect with the floor. A reinforcing beam is disposed in the cavity and connected to the beam body. The side of the reinforcing beam near the opening is used to connect to the floor. The reinforcing beam is a composite material beam.

[0006] In one optional embodiment, the beam includes a connecting plate and a support plate. The support plate is provided on both opposite sides of the connecting plate, and the connecting plate and the support plates on both sides form a trough-shaped structure. The support plates are used to connect to the floor. The reinforcing beam is disposed inside the trough-shaped structure and connected to the connecting plate.

[0007] In one alternative embodiment, the reinforcing beam is bonded to the beam body; And / or, the reinforcing beam is screwed or riveted to the beam body.

[0008] In one optional embodiment, the inner wall of the beam is provided with a recess, and a protrusion is formed at a corresponding position on the outer wall of the beam. The protrusion is located on the side of the beam away from the opening and is spaced apart from both ends of the beam.

[0009] In one optional embodiment, the reinforcing beam includes a first beam segment, a second beam segment, and a third beam segment connected sequentially along the axial direction of the beam body, and at least one of the first beam segment, the second beam segment, and the third beam segment is connected to the beam body.

[0010] In one alternative embodiment, the sidewall of the second beam segment facing away from the opening protrudes beyond the sidewall of the first beam segment facing away from the opening, and the sidewall of the second beam segment facing away from the opening protrudes beyond the sidewall of the third beam segment facing away from the opening. And / or, both the first beam segment and the third beam segment are configured as hollow beams, and the two ends of the second beam segment are respectively inserted into the first beam segment and the third beam segment; And / or, the second beam segment includes an end plate, a support beam, and a connecting protrusion. There are two end plates. The support beam is connected between the two end plates and to the beam body. The connecting protrusion is connected to the outer side of each end plate. The two connecting protrusions are respectively connected to the first beam segment and the third beam segment. And / or, at least one of the first beam segment and the third beam segment is configured as a resin beam, wherein the matrix of the resin beam is provided with continuous fibers extending in the axial direction. And / or, the second beam segment is an injection-molded beam.

[0011] In one alternative embodiment, at least one of the first beam segment and the third beam segment is bonded to the second beam segment; And / or, at least one of the first beam segment and the third beam segment is screwed or riveted to the second beam segment.

[0012] In one alternative embodiment, at least one of the first beam segment and the third beam segment has a receiving groove on its sidewall near and away from the opening, the receiving groove being used to receive adhesive. And / or, the second beam segment has a receiving groove on its sidewall opposite to the opening, the receiving groove being used to receive adhesive.

[0013] Secondly, this utility model also provides a floor assembly, comprising: floor; And, as described above, the mounting beam assembly.

[0014] Thirdly, this utility model also provides a carrier, including the mounting beam assembly as described above or the floor assembly as described above.

[0015] The mounting beam assembly provided by this utility model adopts a reinforced beam made of composite materials, which has a density much lower than that of steel. Under the premise of providing the same or even higher specific strength, the weight of the reinforced part can be reduced, thereby providing direct support for vehicle weight reduction, energy consumption reduction and improved range.

[0016] Meanwhile, the reinforcement beam is built into the cavity of the beam body, which can make full use of the space inside the beam body, that is, utilize the original structural space of the beam body, without adding extra volume to the outside of the beam body. This is conducive to the compact design of the passenger space and avoids the installation of beam components taking up too much passenger space.

[0017] In addition, the reinforcing beam can be connected to the beam body to enhance the beam body's bending and torsional resistance, and it can also be connected to the floor through openings to form a force transmission path from the beam body and the reinforcing beam to the floor. This allows the load borne by the beam body or seat to be transferred to the floor structure more efficiently and evenly, avoiding stress concentration problems caused by local weaknesses.

[0018] The floor assembly and carrier provided by this utility model, since they include the mounting beam assembly provided by this utility model, also include all the above-mentioned advantages of the mounting beam assembly. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A top view of a mounting beam assembly provided for an embodiment of this utility model; Figure 2 for Figure 1 Sectional view of AA; Figure 3 for Figure 1 Sectional view of BB; Figure 4 for Figure 3 A magnified view of part A in the image; Figure 5 for Figure 1 Sectional view of CC; Figure 6 for Figure 5 A magnified view of part B in the image; Figure 7 This is a structural schematic diagram of the beam provided in an embodiment of the present utility model; Figure 8 A schematic diagram of the reinforcing beam provided in an embodiment of this utility model; Figure 9 An exploded view of the assembly of the reinforcing beam provided in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures: 1. Beam body; 101. Cavity; 102. Opening; 103. Connecting plate; 1031. Boss; 104. Support plate; 1041. Flanged edge; 2. Reinforcing beam; 201. First beam segment; 202. Second beam segment; 2021. End plate; 2022. Grid structure; 2023. Connecting protrusion; 2024. Side structure; 203. Third beam segment; 204. Receiving groove; 3. Rivets; 4. Bolts; 5. Nuts; 6. Structural adhesive. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In related technologies, to improve the structural strength of the seat mounting beam, a common method is to weld reinforcing plates onto the beam itself. While this method can improve overall rigidity to some extent, it also significantly increases the weight of the beam, which is detrimental to lightweight vehicle design.

[0024] To address or improve the problem of excessive weight of the mounting beam caused by welding reinforcing plates in related technologies, this utility model provides a mounting beam assembly, a floor assembly, and a carrier.

[0025] The following is combined Figures 1 to 9 This describes the mounting beam assembly provided in the embodiments of the present invention.

[0026] Specifically, the mounting beam assembly is used to connect to the floor of a vehicle, including but not limited to vehicles, ships, and aircraft. The mounting beam assembly includes a beam body 1 and a reinforcing beam 2.

[0027] The beam 1 has an internal cavity 101, and one side of the beam 1 has an opening 102 communicating with the cavity 101. The side of the beam 1 with the opening 102 is used to connect with the floor. Optionally, the beam 1 is configured as a channel-shaped structure, with the channel opening serving as the opening 102. Alternatively, the beam 1 can be a hollow beam, with the opening 102 located on the side wall near the floor. Optionally, the beam 1 is a metal beam, such as a steel beam or an aluminum beam.

[0028] A reinforcing beam 2 is disposed in the cavity 101 and is connected to the beam body 1, for example, by bonding, riveting, or screwing the reinforcing beam 2 to the beam body 1. The side of the reinforcing beam 2 closest to the opening 102 is used to connect to the floor; that is, the side of the reinforcing beam 2 closest to the opening 102 passes through the opening 102 and connects to the floor, for example, by bonding, screwing, or riveting the reinforcing beam 2 to the floor. The reinforcing beam 2 is a composite material beam.

[0029] In this embodiment, the reinforcing beam 2, made of composite material, has a density much lower than that of steel. While providing the same or even higher specific strength, it can reduce the weight of the reinforcing part, thereby providing direct support for vehicle weight reduction, energy consumption reduction and improved range.

[0030] Meanwhile, the reinforcing beam 2 is built into the cavity 101 of the beam body 1, which can make full use of the internal space of the beam body 1, that is, utilize the original structural space of the beam body 1, without adding extra external volume to the beam body 1. This is conducive to the compact design of the passenger space and avoids excessive occupation of passenger space by installing beam components.

[0031] In addition, the reinforcing beam 2 can be connected to the beam 1 to enhance the bending and torsional resistance of the beam 1, and can also be connected to the floor through the opening 102 to form a force transmission path from the beam 1, the reinforcing beam 2 to the floor, so that the load borne by the beam 1 or the seat can be transmitted to the floor structure more efficiently and evenly, avoiding stress concentration problems caused by local weakness.

[0032] In some embodiments provided by this utility model, the beam 1 includes a connecting plate 103 and a supporting plate 104.

[0033] The connecting plate 103 has support plates 104 on both opposite sides, and the connecting plate 103 and the support plates 104 on both sides form a groove-shaped structure, with the groove opening 102. The support plates 104 are used to connect to the floor, for example, by welding the support plates 104 to the floor. The reinforcing beam 2 is set inside the groove-shaped structure and connected to the connecting plate 103.

[0034] In this embodiment, the connecting plate 103 and the two side support plates 104 form a U-shaped or channel-shaped cross-section beam with the opening 102 facing the floor. This beam structure 1 has good bending stiffness and torsional stability. In addition, the slot, as an open end, facilitates the installation and positioning of the internal reinforcing beam 2.

[0035] In addition, the connecting plate 103 is the core load-bearing surface. For example, the load of the seat can easily cause this area to bend. The reinforcing beam 2 is directly connected to the connecting plate 103, which can effectively share the tensile and compressive stress, accurately strengthen the bending stiffness and local strength of the connecting plate 103, and prevent it from deforming or cracking due to excessive stress at a single point.

[0036] In some embodiments provided by this utility model, the support plate 104 is provided with a flange 1041 at one end away from the connecting plate 103. The flange 1041 is folded and extended toward the outside of the support plate 104 and is used for welding with the floor.

[0037] In this embodiment, the flange 1041 folds outward toward the support plate 104, which increases the contact area with the floor, resulting in a more stable connection during welding and preventing weld cracking caused by long-term vibration. At the same time, the flange 1041 transfers the load of the support plate 104 to the floor over a larger area, preventing local deformation of the floor due to excessive stress at a single point, protecting the structural integrity of the floor, and reducing the risk of stress concentration at the connection point.

[0038] Optionally, the connecting plate 103, the support plate 104, and the flange 1041 are configured as a single sheet metal structure. In this embodiment, the integral molding of the beam 1 can avoid welding or splicing between the connecting plate 103, the support plate 104, and the flange 1041, eliminating stress concentration and cracking risk at the splice points, thereby improving the overall torsional and bending resistance of the beam 1.

[0039] In some embodiments provided by this utility model, the reinforcing beam 2 is bonded to the beam body 1. For example, the reinforcing beam 2 and the beam body 1 are bonded together using structural adhesive 6.

[0040] In this embodiment, bonding enables a large-area, continuous interface connection between the reinforcing beam 2 and the beam body 1, allowing the load to be uniformly transferred between the reinforcing beam 2 and the beam body 1, avoiding stress concentration problems, and improving the overall structure's load-bearing capacity and fatigue life.

[0041] Furthermore, structural adhesive 6 possesses inherent elasticity and damping properties, which help absorb vibration and impact energy, improve the durability of the mounting beam assembly under dynamic loads, and enhance the overall vehicle's NVH performance. Simultaneously, the bonding process facilitates automated application and assembly, is compatible with complex shapes, and is particularly suitable for joining dissimilar materials such as composites and metals.

[0042] Of course, the connection between the reinforcing beam 2 and the beam body 1 is not limited to bonding. For example, in some embodiments provided by this utility model, the reinforcing beam 2 and the beam body 1 are screwed together. Optionally, during the forming process of the reinforcing beam 2, a nut 5 can be provided in the base of the reinforcing beam 2, or a nut can be glued onto the reinforcing beam 2. When connecting the beam body 1 and the reinforcing beam 2, a bolt 4 can be used to pass through the beam body 1 and threadedly engage with the nut 5 on the reinforcing beam 2, thereby connecting the beam body 1 and the reinforcing beam 2.

[0043] Alternatively, the reinforcing beam 2 can be riveted to the beam body 1, that is, the reinforcing beam 2 can be riveted to the beam body 1 using rivets 3.

[0044] Alternatively, provided that the reinforcing beam 2 is bonded to the beam body 1, the reinforcing beam 2 can also be screwed or riveted to the beam body 1.

[0045] In this embodiment, before the structural adhesive 6 cures, the reinforcing beam 2 and the beam body 1 are temporarily fixed by screwing or riveting, which can effectively maintain the accurate position and tight fit between the two, prevent misalignment caused by gravity, vibration or assembly movement, and ensure stable connection quality.

[0046] Meanwhile, mechanical connections serve to position the components during assembly and prevent incorrect assembly, improving assembly efficiency and consistency. After the structural adhesive 6 has fully cured, bonding becomes the primary load-bearing method, providing a uniform stress distribution, while bolts or rivets 3 act as auxiliary connections, enhancing peel resistance and impact resistance, forming a dual guarantee.

[0047] refer to Figure 7 As shown, in some embodiments provided by this utility model, the inner wall of the beam 1 is provided with a recess, and a boss 1031 is formed at a corresponding position on the outer wall of the beam 1. The boss 1031 is provided on the side of the beam 1 away from the opening 102, and is spaced from both ends of the beam 1. For example, the boss 1031 is provided in the middle or center of the beam 1.

[0048] When installing the beam assembly as the rear crossbeam of the front seats, there is no central channel in the middle of beam 1, and the middle area of ​​beam 1 needs to be raised to meet actual needs. In this embodiment, the boss 1031 on the outer wall of beam 1 can achieve local raising and reinforcement, which not only meets the height requirements of the passenger space, but also improves the structural rigidity and load-bearing capacity of the middle part of beam 1.

[0049] Meanwhile, the corresponding recesses on the inner wall provide space for the boss 1031, avoiding overall thickness increase and balancing lightweight and strength.

[0050] In some embodiments provided by this utility model, the reinforcing beam 2 includes a first beam segment 201, a second beam segment 202, and a third beam segment 203 connected sequentially along the axial direction of the beam body 1. At least one of the first beam segment 201, the second beam segment 202, and the third beam segment 203 is connected to the beam body 1.

[0051] In this embodiment, the reinforcing beam 2 is designed in segments, which facilitates the adjustment of each segment of the reinforcing beam 2 according to the actual size of the cavity 101 of the beam body 1. For example, it is particularly suitable for structures with a boss 1031 in the middle of the beam body 1, eliminating the need for overall customization of the reinforcing beam 2, thus reducing processing difficulty and cost.

[0052] refer to Figure 8 and Figure 9As shown, in some embodiments provided by this utility model, the sidewall of the second beam segment 202 facing away from the opening 102 protrudes beyond the sidewall of the first beam segment 201 facing away from the opening 102, and the sidewall of the second beam segment 202 facing away from the opening 102 protrudes beyond the sidewall of the third beam segment 203 facing away from the opening 102. For example, the second beam segment 202 is configured as an arched structure.

[0053] In this embodiment, the second beam segment 202 is designed to protrude and fit precisely with the recess in the inner wall of the beam body 1, increasing the contact area between the two and making the connection between the reinforcing beam 2 and the beam body 1 tighter, avoiding uneven load transfer caused by gaps. It is especially suitable for structures with a boss 1031 in the middle of the beam body 1, making the reinforcement more precise.

[0054] Optionally, in some embodiments provided by this utility model, the first beam segment 201, the second beam segment 202 and the third beam segment 203 are all bonded to the beam body 1, and the first beam segment 201 and the third beam segment 203 are screwed or riveted to the beam body 1.

[0055] In this embodiment, all three beam segments of the reinforcing beam 2 are bonded to the beam body 1, achieving a large-area continuous connection, ensuring uniform load transfer, and effectively improving overall stiffness and fatigue resistance. Simultaneously, the adhesive layer also acts as a sealant and buffer, improving the structure's durability and vibration reduction performance.

[0056] Based on the above, the first beam segment 201 and the third beam segment 203 are also screwed or riveted to the beam body 1. On the one hand, they can provide temporary fixation when the adhesive has not cured, prevent the reinforcing beam 2 from shifting and ensure assembly accuracy. On the other hand, they can provide mechanical redundancy and enhance the reliability of the connection, especially when subjected to complex working conditions such as impact and vibration, to avoid the whole body from detaching due to adhesive failure.

[0057] refer to Figure 8 and Figure 9 As shown, in some embodiments provided by this utility model, the first beam segment 201 and the third beam segment 203 are both set as hollow beams, and the two ends of the second beam segment 202 are respectively inserted into the first beam segment 201 and the third beam segment 203.

[0058] In this embodiment, the hollow beam possesses excellent bending and torsional resistance, while also being lightweight and having high material utilization. The first beam segment 201 and the third beam segment 203, as hollow beams, can not only bear the main load-bearing function but also provide matching connection interfaces for the insertion of the second beam segment 202.

[0059] Simultaneously, the two ends of the second beam segment 202 are inserted into the first beam segment 201 and the third beam segment 203, forming a socketed connection. The insertion process completes centering and limiting, ensuring accurate radial alignment of the three beam segments and providing a stable foundation for subsequent connections. Furthermore, the increased contact area through the socketing allows for more even load distribution between the beam segments, avoiding stress concentration. For example, the socketed structure effectively resists shear and bending moments. At the same time, the socketed area forms a "thickened section," equivalent to local reinforcement, which improves the deformation resistance of the connection.

[0060] In some embodiments provided by this utility model, the second beam segment 202 includes an end plate 2021, a support beam, and a connecting protrusion 2023.

[0061] There are two end plates 2021. The support beam is connected between the two end plates 2021 and connected to the beam body 1. For example, the support beam is bonded to the beam body 1, that is, the support beam protrudes from the first beam segment 201 and the third beam segment 203.

[0062] Furthermore, the outer side of the end plate 2021 is connected with a connecting protrusion 2023. The two connecting protrusions 2023 are respectively connected to the first beam segment 201 and the third beam segment 203, that is, the connecting protrusion 2023 is inserted into the first beam segment 201 or the second beam segment 202.

[0063] In this embodiment, the support beam connects the two end plates 2021 and serves as the main load-bearing structure. The support beam is bonded to the beam body 1, for example, through a recess in the inner wall of the beam body 1, which can effectively transfer loads and enhance local stiffness. The large-area bonding between the support beam and the beam body 1 ensures the integrity and stability of the structure.

[0064] In addition, a connecting protrusion 2023 is provided on the outer side of the end plate 2021, which is inserted into the hollow structure of the first beam segment 201 and the third beam segment 203 respectively. With the planar positioning of the end plate 2021, the three beam segments are aligned coaxially to avoid assembly deviation.

[0065] In addition, the support beam can be designed as an arch shape as needed, for example, to fit the concave beam 1. The end plate 2021 and the connecting protrusion 2023 maintain a standardized plug-in structure, thereby taking into account the special reinforcement needs in the middle and the universality of the connection at both ends, reducing the difficulty of customization.

[0066] In some embodiments provided by this utility model, the support beam includes a grid structure 2022 and a side structure 2024.

[0067] The grid structure 2022 is connected between two end plates 2021, and at least one side of the grid structure 2022 is connected to a side wall structure 2024. The side wall structure 2024 is connected between the two end plates 2021 and is bonded to the beam 1. The side wall structure 2024 can be a side plate.

[0068] In this embodiment, the mesh structure 2022 can reduce weight through its hollow design, while the polygons such as triangles, quadrilaterals or hexagons of the mesh can be used to stably distribute the load, avoid stress concentration, and improve the load-bearing capacity; the side structure 2024 can provide a flat bonding surface and transmit the force evenly to the beam 1 through surface contact, ensuring a reliable connection with the beam 1. The combination of the two can achieve the effect of bearing greater stress with less material.

[0069] Furthermore, the second beam segment 202 is an injection-molded beam; for example, the grid structure 2022, side structure 2024, end plate 2021, and connecting protrusion 2023 are configured as an integral injection-molded structure. The material of the two ends 202 can be nylon, such as composite nylon material.

[0070] In this embodiment, injection molding can complete the mesh structure 2022, side panel, end plate 2021, and connecting protrusion 2023 in one step without subsequent assembly. The production efficiency is much higher than that of separate splicing, and it is suitable for large-scale mass production, which can significantly reduce the manufacturing cost of a single part.

[0071] Meanwhile, injection molding, relying on the high-precision replication capability of the mold, allows the shape of the second beam segment 202 to conform to the concave contour of the beam body 1, achieving a close fit between surfaces. This increases the contact area between the second beam segment 202 and the beam body 1, enhancing bonding reliability and load transfer efficiency. Furthermore, this conformal fitting helps achieve precise positioning and uniform stress distribution, avoiding local gaps or stress concentrations, and improving the overall structural stiffness and durability.

[0072] In some embodiments provided by this utility model, at least one of the first beam segment 201 and the third beam segment 203 is configured as a resin beam, and the matrix of the resin beam is provided with continuous fibers extending along the axial direction. The continuous fibers include, but are not limited to, carbon fiber or glass fiber. It is understood that the matrix of the resin beam can be a thermoplastic matrix, such as nylon, or a thermosetting matrix, such as polyurethane.

[0073] In this embodiment, the continuous fibers are arranged axially, which fully utilizes their high strength and high modulus characteristics, significantly improving the tensile, bending, and fatigue resistance of the beam segment in the main stress directions. The resin matrix serves to fix the fibers, transfer stress, and protect the fibers, forming a high-performance fiber-reinforced composite material structure. This ensures the load-bearing capacity of the reinforced beam 2 while reducing its weight.

[0074] Based on the above-mentioned plug-in structure, the resin beam is set as a hollow section, which makes it easy to form and facilitates precise plug-in assembly with the connecting protrusion 2023 of the second beam segment 202.

[0075] Optionally, at least one of the first beam segment 201 and the third beam segment 203 is a pultruded structure.

[0076] In this embodiment, pultrusion is a process that can continuously produce composite profiles. For example, by impregnating fibers with resin and then introducing them into a heated mold for curing through a preforming mold, a long strip component with a constant cross-section is finally drawn out. This allows for efficient axial arrangement of continuous fibers, fully utilizing fiber strength, and is more suitable for producing hollow profiles with regular cross-sections and consistent length directions.

[0077] In some embodiments provided by this utility model, at least one of the first beam segment 201 and the third beam segment 203 is bonded to the second beam segment 202. For example, the first beam segment 201 or the third beam segment 203 is bonded to the second beam segment 202 by structural adhesive 6.

[0078] In this embodiment, bonding can achieve a large-area, continuous interface connection between the first beam segment 201 or the third beam segment 203 and the second beam segment 202, so that the load is uniformly transferred between the first beam segment 201 or the third beam segment 203 and the second beam segment 202, avoiding stress concentration problems and improving the load-bearing capacity and fatigue life of the overall structure.

[0079] Furthermore, structural adhesive 6 possesses inherent elasticity and damping properties, which help absorb vibration and impact energy, improve the durability of the mounting beam assembly under dynamic loads, and enhance the overall vehicle's NVH performance. Simultaneously, the bonding process facilitates automated application and assembly, is compatible with complex shapes, and is particularly suitable for joining dissimilar materials such as composites and metals.

[0080] Optionally, the connecting protrusions 2023 at both ends are inserted into the first beam segment 201 or the second beam segment 202 and bonded to the first beam segment 201 or the second beam segment 202.

[0081] In this embodiment, the plug-in joint provides structural restraint, while the adhesive joint enables large-area continuous bonding. Together, these two technologies significantly improve shear, tensile, and fatigue resistance. Simultaneously, the adhesive layer disperses stress, preventing localized concentrations and enhancing joint durability.

[0082] Of course, the first beam segment 201 or the third beam segment 203 is not limited to being bonded to the second beam segment 202. For example, in some embodiments provided by this utility model, at least one of the first beam segment 201 and the third beam segment 203 is screwed to the second beam segment 202.

[0083] Optionally, during the molding process, a nut 5 can be provided in the base of the second beam segment 202, for example, by pre-embedding the nut 5 in the connecting protrusion 2023 of the second beam segment 202, or by bonding the nut 5 to the second beam segment 202. When connecting the second beam segment 202 to the first beam segment 201 or the third beam segment 203, a bolt 4 can be used to pass through the first beam segment 201 or the third beam segment 203 and thread-fit with the nut 5 on the second beam segment 202, thereby connecting the second beam segment 202 to the first beam segment 201 or the third beam segment 203.

[0084] Alternatively, the first beam segment 201 or the third beam segment 203 can be riveted to the second beam segment 202, that is, the connecting protrusion 2023 of the first beam segment 201 or the third beam segment 203 and the second beam segment 202 can be riveted together using rivets 3.

[0085] Alternatively, provided that the first beam segment 201 or the third beam segment 203 is bonded to the second beam segment 202, the first beam segment 201 or the third beam segment 203 can also be screwed or riveted to the second beam segment 202.

[0086] In this embodiment, before the structural adhesive 6 cures, the first beam segment 201 or the third beam segment 203 is temporarily fixed to the second beam segment 202 by screwing or riveting. This can effectively maintain the accurate position and tight fit between the two, prevent misalignment caused by gravity, vibration or assembly movement, and ensure stable connection quality.

[0087] Meanwhile, mechanical connections serve to position the components during assembly and prevent incorrect assembly, improving assembly efficiency and consistency. After the structural adhesive 6 has fully cured, bonding becomes the primary load-bearing method, providing a uniform stress distribution, while bolts or rivets 3 act as auxiliary connections, enhancing peel resistance and impact resistance, forming a dual guarantee.

[0088] In some embodiments provided by this utility model, at least one of the first beam segment 201 and the third beam segment 203 has a receiving groove 204 on its sidewall near and away from the opening 102. The receiving groove 204 is used to receive adhesive, which may be structural adhesive 6. The adhesive near the opening 102 of the first beam segment 201 or the third beam segment 203 is used to bond to the floor, and the adhesive away from the opening 102 is used to bond to the connecting plate 103 of the beam body 1.

[0089] In this embodiment, the receiving groove 204 is specifically designed to store the structural adhesive 6, which can prevent the adhesive from flowing and being lost during the assembly process, ensuring that there is sufficient amount of adhesive between the first beam segment 201 and the third beam segment 203 and the floor or connecting plate 103, forming a uniform and continuous adhesive layer, and improving the bonding strength.

[0090] In some embodiments of this utility model, the second beam segment 202 has a receiving groove 204 on its side wall away from the opening 102. The receiving groove 204 is used to receive adhesive, which may be structural adhesive 6. Specifically, the receiving groove 204 is provided on the side wall structure 2024 of the second beam segment 202.

[0091] In this embodiment, the receiving groove 204 is specifically designed to store the structural adhesive 6, which can prevent the adhesive from flowing and being lost during the assembly process, ensuring that there is sufficient amount of adhesive between the second beam segment 202 and the connecting plate 103, forming a uniform and continuous adhesive layer, and improving the bonding strength.

[0092] Furthermore, the connecting protrusion 2023 is also provided with a receiving groove 204, for example, the receiving groove 204 is arranged circumferentially around the connecting protrusion 2023. Similarly, the receiving groove 204 is specifically designed to store structural adhesive 6, which can prevent the adhesive from flowing and being lost during assembly, ensuring that there is sufficient amount of adhesive between the connecting protrusion 2023 of the second beam segment 202 and the first beam segment 201 or the third beam segment 203, forming a uniform and continuous adhesive layer, and improving the bonding strength.

[0093] This utility model embodiment also provides a floor assembly.

[0094] Specifically, the floor assembly includes the floor and the mounting beam assembly as described above.

[0095] It should be noted that the floor assembly includes the mounting beam assembly, and therefore includes all the advantages of the mounting beam assembly mentioned above.

[0096] This utility model embodiment also provides a vehicle, including but not limited to vehicles, aircraft and ships.

[0097] Specifically, the vehicle includes the mounting beam assembly as described above or the floor assembly as described above.

[0098] It should be noted that the vehicle includes the mounting beam assembly, and therefore includes all the advantages of the mounting beam assembly mentioned above.

[0099] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A mounting beam assembly, characterized in that, For connection to the floor of the vehicle, including: The beam (1) has a cavity (101) inside, and one side of the beam (1) is provided with an opening (102) communicating with the cavity (101). The side of the beam (1) with the opening (102) is used to connect with the floor. A reinforcing beam (2) is provided in the cavity (101) and connected to the beam body (1). The side of the reinforcing beam (2) near the opening (102) is used to connect to the floor. The reinforcing beam (2) is a composite material beam.

2. The mounting beam assembly according to claim 1, characterized in that, The beam (1) includes a connecting plate (103) and a support plate (104). The support plate (104) is provided on both sides of the connecting plate (103), and the connecting plate (103) and the support plates (104) on both sides form a trough structure. The support plates (104) are used to connect to the floor. The reinforcing beam (2) is located inside the trough structure and is connected to the connecting plate (103).

3. The mounting beam assembly according to claim 1, characterized in that, The reinforcing beam (2) is bonded to the beam body (1); And / or, the reinforcing beam (2) is screwed or riveted to the beam body (1).

4. The mounting beam assembly according to claim 1, characterized in that, The inner wall of the beam (1) is provided with a recess, and a boss (1031) is formed at the corresponding position on the outer wall of the beam (1). The boss (1031) is located on the side of the beam (1) away from the opening (102) and has a distance from both ends of the beam (1).

5. The mounting beam assembly according to any one of claims 1-4, characterized in that, The reinforcing beam (2) includes a first beam segment (201), a second beam segment (202) and a third beam segment (203) connected sequentially along the axial direction of the beam body (1), and at least one of the first beam segment (201), the second beam segment (202) and the third beam segment (203) is connected to the beam body (1).

6. The mounting beam assembly according to claim 5, characterized in that, The side wall of the second beam segment (202) opposite to the opening (102) protrudes beyond the side wall of the first beam segment (201) opposite to the opening (102), and the side wall of the second beam segment (202) opposite to the opening (102) protrudes beyond the side wall of the third beam segment (203) opposite to the opening (102); And / or, both the first beam segment (201) and the third beam segment (203) are configured as hollow beams, and the two ends of the second beam segment (202) are respectively inserted into the first beam segment (201) and the third beam segment (203). And / or, the second beam segment (202) includes an end plate (2021), a support beam and a connecting protrusion (2023), there are two end plates (2021), the support beam is connected between the two end plates (2021) and connected to the beam body (1), the connecting protrusion (2023) is connected to the outer side of each end plate (2021), and the two connecting protrusions (2023) are respectively connected to the first beam segment (201) and the third beam segment (203); And / or, at least one of the first beam segment (201) and the third beam segment (203) is configured as a resin beam, wherein the matrix of the resin beam is provided with continuous fibers extending in the axial direction. And / or, the second beam segment (202) is an injection-molded beam.

7. The mounting beam assembly according to claim 5, characterized in that, At least one of the first beam segment (201) and the third beam segment (203) is bonded to the second beam segment (202); And / or, at least one of the first beam segment (201) and the third beam segment (203) is screwed or riveted to the second beam segment (202).

8. The mounting beam assembly according to claim 5, characterized in that, At least one of the first beam segment (201) and the third beam segment (203) has a receiving groove (204) on its sidewall near and away from the opening (102), the receiving groove (204) being used to receive adhesive; And / or, the second beam segment (202) has a receiving groove (204) on the side wall opposite to the opening (102), the receiving groove (204) being used to receive adhesive.

9. A floor assembly, characterized in that, include; floor; And, the mounting beam assembly as described in any one of claims 1-8.

10. A vehicle, characterized in that, Includes the mounting beam assembly as described in any one of claims 1-8 or the floor assembly as described in claim 9.

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