Frame structure, vehicle body and vehicle

Abstract

The invention discloses a vehicle frame structure, a vehicle body and a vehicle, the vehicle frame structure comprises a longitudinal structure assembly, the longitudinal structure assembly comprises a longitudinal beam assembly, the longitudinal beam assembly comprises a first longitudinal beam and a second longitudinal beam located on the lower side of the first longitudinal beam, and the first longitudinal beam and the second longitudinal beam extend in the first direction; the supporting piece is arranged between the first longitudinal beam and the second longitudinal beam, and at least one of the first longitudinal beam and the second longitudinal beam is connected with the supporting piece through a detachable structure. According to the technical scheme, due to the fact that the longitudinal beam assembly forms the double-longitudinal-beam structure, and the first longitudinal beam, the second longitudinal beam and the supporting piece form the I-shaped structure, the stability and the reliability of the longitudinal structure assembly are good, and therefore the strength and the rigidity of the frame structure can be improved, the overall dynamic stiffness of the frame structure can be improved, and then the overall dynamic stiffness of the frame structure can be improved. The first longitudinal beams and / or the second longitudinal beams can be separated from the supporting pieces to unload force, and therefore a good energy absorption effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle frames, and in particular to a vehicle frame structure, a vehicle body and a vehicle. Background Art

[0002] As the entire vehicle skeleton, the frame is one of the important components of the vehicle. When the vehicle is hit, the frame will bear a large impact force and cause deformation. If the frame is severely deformed, it will affect the safety of the door members. To ensure the safety of the passengers in the car, the frame should have appropriate strength and rigidity, and also have a good energy absorption effect. Therefore, how to further improve the rigidity of the frame structure and take into account the energy absorption effect has become one of the problems that need to be solved in current vehicle design. Summary of the invention

[0003] The embodiments of the present application provide a frame structure, a vehicle body and a vehicle, which can effectively improve the overall strength and rigidity of the frame structure and have a relatively good energy absorption effect, thereby improving the rigidity of the front cabin structure of the vehicle.

[0004] In a first aspect, an embodiment of the present application provides a frame structure, comprising: a longitudinal structure component, the longitudinal structure component comprising: a longitudinal beam component, the longitudinal beam component comprising a first longitudinal beam and a second longitudinal beam located at the lower side of the first longitudinal beam, the first longitudinal beam and the second longitudinal beam extending along a first direction; a support member, the support member is arranged between the first longitudinal beam and the second longitudinal beam, and at least one of the first longitudinal beam and the second longitudinal beam is connected to the support member via a detachable structure.

[0005] In the above technical solution, since the longitudinal beam assembly includes a first longitudinal beam and a second longitudinal beam located at the lower side of the first longitudinal beam, the longitudinal beam assembly constitutes a double longitudinal beam structure. When the frame structure is hit, the first longitudinal beam and the second longitudinal beam can bear the collision force respectively, and the collision force can be dispersed on the first longitudinal beam and the second longitudinal beam, reducing the damage probability of the longitudinal beam assembly, making the frame structure less likely to deform, and the frame structure has better collision performance. In addition, the first longitudinal beam and the second longitudinal beam are rigidly connected by a support member, and the first longitudinal beam, the second longitudinal beam and the support member form an I-shaped structure. When the first longitudinal beam and the second longitudinal beam are subjected to the collision force and tend to move away from each other in the up and down directions, the support member can play a role in restraining the first longitudinal beam and the second longitudinal beam, effectively inhibiting the first longitudinal beam and the second longitudinal beam from moving away from each other, thereby making the stability and reliability of the longitudinal structure assembly better. It can be seen that the above method can not only improve the strength and stiffness of the frame structure, but also improve the overall dynamic stiffness of the frame structure. Secondly, at least one of the first longitudinal beam and the second longitudinal beam is connected to the support member through a detachable structure. When the collision force applied to the first longitudinal beam and the second longitudinal beam reaches a certain value, the first longitudinal beam and / or the second longitudinal beam can be detached from the support member to unload the force, thereby bringing about a better energy absorption effect.

[0006] In some embodiments of the present application, the support member is fixedly connected to the second longitudinal beam, and the support member is connected to the first longitudinal beam through a detachable structure. In the above technical solution, the support member is fixedly connected to the second longitudinal beam, and is connected to the first longitudinal beam through a detachable structure. In this way, the support member can be connected and detached from the first longitudinal beam, and can also have a relatively good connection reliability with the second longitudinal beam, thereby taking into account the connection strength between the support member, the second longitudinal beam and the first longitudinal beam, and can be detached to absorb energy.

[0007] In some embodiments of the present application, the detachable structure includes a connecting portion and a detachable portion, the connecting portion is arranged on the detachable portion, one of the connecting portion and the detachable portion is arranged on the support member, and the other is arranged on the corresponding first longitudinal beam and / or second longitudinal beam. In the above technical scheme, when a detachable structure is provided between the support member and the first longitudinal beam, one of the connecting portion and the detachable portion may be provided on the first longitudinal beam, and the other is provided on the support member; when a detachable structure is provided between the support member and the second longitudinal beam, one of the connecting portion and the detachable portion may be provided on the second longitudinal beam, and the other is provided on the support member; when a detachable structure is provided between the support member and the first longitudinal beam and between the support member and the second longitudinal beam, one of the connecting portion and the detachable portion is provided on the support member, and the other is provided on the corresponding first longitudinal beam and second longitudinal beam.

[0008] In some embodiments of the present application, the detachable portion includes a mounting hole and a connecting groove, one end of the connecting groove is connected to the mounting hole, and the connecting portion is inserted into the mounting hole. In the above technical solution, when the support member is subjected to a large force, the connecting portion can act in the mounting hole. Due to the existence of the connecting groove, the connecting portion can drive the mounting hole to deform, so that the connecting portion can be detached from the mounting hole to complete the detachment. This structure is relatively simple, convenient for processing, and conducive to reducing costs.

[0009] In some embodiments of the present application, the support member includes a first component and a second component, one of the first component and the first longitudinal beam is provided with a mounting hole and a connecting groove, and the other is provided with a connecting portion, and the second component is fixedly connected to the second longitudinal beam and is detachably connected to the first component through a fastener.

[0010] In the above technical solution, by configuring the support member to include the first component and the second component, the support member forms a split structural design, which can reduce the difficulty of manufacturing the support member, facilitate the installation of the support member on the first longitudinal beam and the second longitudinal beam, and compared with the support member being an integrated structure, in the later maintenance, one of the first component and the second component can be replaced, thereby effectively reducing the maintenance cost and improving the maintenance economy. Secondly, since the first component can be detached between the second component and the first longitudinal beam, it can unload force and absorb energy when the force is large, which is convenient for maintenance and replacement on the one hand, and on the other hand, the first component can be disassembled or installed later when there is assembly interference with some parts, thereby reducing the occurrence of installation interference problems and facilitating the assembly of the whole vehicle.

[0011] In some embodiments of the present application, a mounting hole and a connecting groove are provided on the first component, and the other end of the connecting groove away from the mounting hole is connected to the side edge of the first component. In this technical solution, one end of the connecting groove is connected to the mounting hole, and the other end is connected to the side edge of the first component, so that when the force applied to the support reaches a certain value, the connecting part can be easily separated from the mounting hole, thereby improving the success rate of separation.

[0012] In some embodiments of the present application, a lower swing arm fixing portion is provided on the second longitudinal beam, and the orthographic projection of the lower swing arm fixing portion on the horizontal plane and the orthographic projection of the support member on the horizontal plane at least partially overlap.

[0013] In the above technical solution, it can be understood that the distance between the support member and the lower control arm fixing portion is relatively close, that is, the lower control arm fixing portion and the support member are arranged in the vertical direction as much as possible. Since the support member can enhance the strength and rigidity of the second longitudinal beam, the lower control arm fixing portion is close to the support member, and the strength and rigidity of the surrounding area of ​​the lower control arm fixing portion on the second longitudinal beam are better, which is beneficial to improving the dynamic rigidity of the position where the lower control arm fixing portion is located.

[0014] In some embodiments of the present application, the longitudinal structural assembly further includes: a vibration-damping tower, which is located on the upper side of the first longitudinal beam and connected to the first longitudinal beam, and the orthographic projection of the vibration-damping tower on the horizontal plane and the orthographic projection of the support member on the horizontal plane at least partially overlap.

[0015] In the above technical solution, the distance between the vibration-damping tower and the support member can be relatively close, that is, the vibration-damping tower and the support member are arranged in the vertical direction as much as possible. Since the support member can enhance the strength and rigidity of the first longitudinal beam, the vibration-damping tower is close to the support member, and the strength and rigidity of the surrounding area of ​​the vibration-damping tower on the first longitudinal beam are better. This is beneficial to improving the dynamic stiffness of the position where the vibration-damping tower is located, so that the vibration-damping tower can be more reliably connected to the connection between the shock absorber and the vehicle body.

[0016] In some embodiments of the present application, the first component includes: a first plate portion; a second plate portion and a third plate portion, the second plate portion and the third plate portion are arranged at both ends of the first plate portion along the first direction; a fourth plate portion, the fourth plate portion is located on the upper side of the first plate portion, and connects the first plate portion, the second plate portion and the third plate portion, and the fourth plate portion is provided with an installation hole and a weakened groove.

[0017] In the above technical solution, by configuring the first component to include the first plate portion, the second plate portion, the third plate portion and the fourth plate portion, the first component can form a hollow frame structure. This method can not only make the first component have relatively high strength and rigidity, but also reduce the material consumption and manufacturing cost. On the other hand, by adopting this frame structure, the weight of the first component is relatively light, which is conducive to reducing the weight of the frame structure, and can save labor during assembly, which is conducive to the assembly of the frame structure.

[0018] In some embodiments of the present application, a first avoidance surface is provided at one end of the second plate portion and the third plate portion away from the first plate portion, and the distance between the first avoidance surface and the first plate portion gradually decreases in a direction from the first longitudinal beam toward the second longitudinal beam.

[0019] In the above technical solution, the first avoidance surface is configured to gradually reduce the distance between the first plate portion and the first longitudinal beam in the direction from the first longitudinal beam to the second longitudinal beam, so that the first component can form a frame structure that is narrow at the bottom and wide at the top, and a relatively large space can be reserved at the bottom of the first component. When some parts are assembled from the outside to the inside of the frame structure, the probability of contact with the first component when passing through the bottom of the first component is reduced, which can reduce the occurrence of installation interference. The first component can form a frame structure that is narrow at the bottom and wide at the top, which can further reduce materials and thus further reduce costs.

[0020] In some embodiments of the present application, the second component includes: a main body portion, which is connected to the first component via a fastener; and a flange portion, which is connected to the main body portion and fixedly connected to the second longitudinal beam.

[0021] In the above technical solution, the flange portion may refer to a component of a sheet-like structure, and the main body portion is connected to the second longitudinal beam through the flange portion, which can increase the contact area with the second longitudinal beam, so that the joining effect between the second component and the second longitudinal beam is better, thereby improving the connection reliability and stability between the second component and the second longitudinal beam, and reducing the probability of separation between the second component and the second longitudinal beam.

[0022] In some embodiments of the present application, the main body includes: a fifth plate portion, the fifth plate portion is connected to the first component via a fastener; and a sixth plate portion, the sixth plate portion is connected to the fifth plate portion.

[0023] In the above technical solution, the fifth plate portion and the sixth plate portion can form a V-shaped structure or an L-shaped structure. The strength and rigidity of the main body of this structure are relatively good, and the impact resistance and deformation resistance are relatively good. Secondly, by setting the main body to include the fifth plate portion and the sixth plate portion, less material is required, which is conducive to reducing weight and saving more effort when assembling the main body with the second longitudinal beam. Secondly, one side of the main body formed by the fifth plate portion and the sixth plate portion is open, which can form an avoidance space to reduce the occurrence of assembly interference with some parts during the assembly of the whole vehicle.

[0024] In some embodiments of the present application, a second avoidance surface is provided at one end of the fifth plate portion away from the sixth plate portion, and the distance between the second avoidance surface and the sixth plate portion gradually decreases in a direction from the first longitudinal beam toward the second longitudinal beam.

[0025] In some embodiments of the present application, there are two longitudinal structural components, and the two longitudinal structural components are spaced apart along the second direction.

[0026] In the above technical solution, since the longitudinal beam assembly in the longitudinal structure assembly constitutes a double longitudinal beam structure, and the first longitudinal beam and the second longitudinal beam are rigidly connected by the support member, the first longitudinal beam, the second longitudinal beam and the support member form an I-shaped structure, and the strength and rigidity of the longitudinal structure assembly are relatively good. On this basis, by setting the frame structure to include two longitudinal structure assemblies, the strength and rigidity of the two ends of the second direction of the vehicle connection structure are relatively good, which is beneficial to improving the overall strength and rigidity of the vehicle connection structure.

[0027] In some embodiments of the present application, there are two longitudinal structural components, and the two longitudinal structural components are arranged spaced apart along the second direction. The frame structure also includes: a first cross beam and a second cross beam, the first cross beam is connected to the two vibration damping towers, and the second cross beam is connected to the two second longitudinal beams.

[0028] In the above technical solution, the first cross beam, two vibration-damping towers, the second cross beam, and the two second longitudinal beams can form a rectangular frame structure, which can improve the rigidity and strength of the lower part of the frame structure. When the frame structure collides and the collision force is transmitted to the second longitudinal beams, the collision force can be dispersed on the first cross beam, the second cross beam and the two second longitudinal beams, reducing the force on the second longitudinal beams, thereby reducing the probability of damage to the second longitudinal beams. Since the second longitudinal beams are the main load-bearing components in the frame structure, the reliability of the frame structure can be improved by reducing the damage to the second longitudinal beams.

[0029] In some embodiments of the present application, the first crossbeam has a central axis parallel to the second direction, and an extension line of a projection line of the central axis on a horizontal plane passes through a direct projection of the support member on the horizontal plane.

[0030] In the above technical solution, it can be understood that the distance between the first cross beam and the support member is relatively close, that is, the first cross beam, the support member, the second cross beam and the two vibration damping towers are arranged in the vertical direction as much as possible, so that the rectangular frame structure formed by the first cross beam, the two vibration damping towers, the second cross beam and the two second longitudinal beams is a vertically placed frame structure, which can improve the strength and rigidity of the rear side of the frame structure.

[0031] In some embodiments of the present application, the orthographic projection of the vibration-damping tower on the horizontal plane and the orthographic projection of the second beam on the horizontal plane at least partially overlap.

[0032] In the above technical solution, it can be understood that the distances between the vibration-damping tower, the second crossbeam and the support are relatively close. On the one hand, the first crossbeam, the support, the second crossbeam and the two vibration-damping towers are arranged in the vertical direction as much as possible, so that the rectangular frame structure formed by the first crossbeam, the two vibration-damping towers, the second crossbeam and the two second longitudinal beams is a vertically placed frame structure, which can improve the strength and rigidity of the rear side of the frame structure. On the other hand, the second crossbeam and the support are relatively close, which can increase the supporting effect of the support.

[0033] In some embodiments of the present application, the frame structure further includes: a third cross beam, the third cross beam connects the two second longitudinal beams, and the third cross beam is spaced apart from the second cross beams along the first direction.

[0034] In the above technical solution, the third cross beam, the second cross beam and the two second longitudinal beams constitute a rectangular frame structure, which can improve the rigidity and strength of the lower part of the frame structure. When the frame structure collides and the collision force is transmitted to the second longitudinal beams, the collision force can be dispersed on the third cross beam, the second cross beam and the two second longitudinal beams, reducing the force on the second longitudinal beams, thereby reducing the probability of damage to the second longitudinal beams. Since the second longitudinal beams are the main load-bearing components in the frame structure, the reliability of the frame structure can be improved by reducing the damage to the second longitudinal beams.

[0035] In some embodiments of the present application, an EDU rear suspension fixing portion is provided on the second crossbeam and the third crossbeam.

[0036] In the above technical solution, since the EDU rear suspension is generally connected to the front sub-frame, it can be seen that the second cross beam and the third cross beam can integrate the function of the front sub-frame. Compared with the related art that requires an independent front sub-frame to be connected to the frame, the second cross beam and the third cross beam integrate part of the front sub-frame function, which can reduce the number of parts. Moreover, since the second cross beam and the third cross beam are directly connected to the second longitudinal beam, the size of the frame in vertical height can be reduced, which is beneficial to reduce the volume of the frame structure, reduce the weight of the frame structure, and thus reduce costs.

[0037] In a second aspect, an embodiment of the present application further provides a vehicle body, comprising the aforementioned frame structure.

[0038] In the above technical solution, since the longitudinal beam assembly in the frame structure constitutes a double longitudinal beam structure, and the first longitudinal beam, the second longitudinal beam and the support member form an I-shaped structure, the stability and reliability of the frame structure are better, and the overall dynamic stiffness can be improved. When the vehicle body adopts this frame structure, the stiffness and strength of the front suspension structure of the vehicle body are improved, and it has a certain energy absorption effect.

[0039] In a third aspect, an embodiment of the present application further provides a vehicle, comprising the frame structure or body as described above.

[0040] In the above technical solution, since the longitudinal beam components in the vehicle body and the frame structure form a double longitudinal beam structure, the frame structure is not easy to deform, and the frame structure has better collision performance. In addition, the first longitudinal beam, the second longitudinal beam and the support member form an I-shaped structure, so that the stability and reliability of the longitudinal structure components are better. It can be seen that the above method can not only improve the strength and rigidity of the frame structure, but also improve the overall dynamic rigidity of the frame structure, and bring a certain energy absorption effect. The vehicle adopts the above frame structure or body, which can effectively improve the safety of the front cabin structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 A schematic diagram of a frame structure provided in some embodiments of the present application;

[0043] Figure 2 A schematic diagram of the structure of a support member provided in some embodiments of the present application;

[0044] Figure 3 An assembly diagram of a second component and a second longitudinal beam provided for some embodiments of the present application;

[0045] Figure 4 An assembly diagram of a first component and a first longitudinal beam provided for some embodiments of the present application;

[0046] Figure 5 A schematic diagram of a three-dimensional structure of a support member provided in some embodiments of the present application;

[0047] Figure 6 A schematic diagram of the three-dimensional structure of a vehicle body provided in some embodiments of the present application.

[0048] Icons: 1000, vehicle body; 100, vehicle frame structure; 10, longitudinal structural assembly; 1, longitudinal beam assembly; 101, first longitudinal beam; 102, second longitudinal beam; 1021, lower arm fixing portion; 2, support member; 21, first component; 211, first plate portion; 212, second plate portion; 213, third plate portion; 214, fourth plate portion; 21a, mounting hole; 21b, connecting groove; 21c, first avoidance surface; 21d, first hole; 21e, side edge; 22, second component; 22a, second hole; 221, main body; 2211, fifth plate; 2212, sixth plate; 221a, second avoidance surface; 222, flange portion; 3, connecting portion; 4, fastener; 5, vibration damping tower; 5a, third hole; 6, first beam; 7, second beam; 8, third beam; 300, vehicle body frame; X, second direction; Y, first direction; Z, third direction. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0051] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0052] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0054] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0055] The term "plurality" used in the present application refers to two or more (including two).

[0056] The frame is the skeleton of the vehicle and one of its important components. When the vehicle is hit, the frame will bear a large impact force and cause deformation. If the frame is severely deformed, it will affect the safety of the door members. To ensure the safety of the passengers in the car, the frame should have appropriate strength and rigidity. Therefore, how to further improve the rigidity of the frame structure has become one of the problems that need to be solved in current vehicle design.

[0057] In a general vehicle frame structure, the frame structure mainly includes longitudinal beams and cross beams, among which the longitudinal beams can improve the overall strength and rigidity of the frame, and can withstand the collision force when the vehicle collides. However, the longitudinal beams in most vehicle frame structures are generally arranged on both sides of the length direction of the vehicle body, and each side is a separate longitudinal beam. Therefore, the strength and rigidity of the frame structure depend on the strength and rigidity of the longitudinal beams on each side, but the overall strength and rigidity of the frame in this structure are limited, and the strength and rigidity effect is not good.

[0058] Based on the above considerations, in order to solve the problem of poor strength and rigidity of the frame structure, the inventor has designed a frame structure, including a longitudinal structure assembly, the longitudinal structure assembly including a longitudinal beam assembly and a support member. The longitudinal beam assembly includes a first longitudinal beam and a second longitudinal beam located below the first longitudinal beam, the first longitudinal beam and the second longitudinal beam extending along a first direction. The support member is arranged between the first longitudinal beam and the second longitudinal beam, and at least one of the first longitudinal beam and the second longitudinal beam is connected to the support member through a detachable structure.

[0059] In the above frame structure, the longitudinal structural component is arranged along the longitudinal direction of the frame structure, and the longitudinal direction may refer to the length direction of the vehicle body, and plays a longitudinal supporting role. Since the longitudinal beam component includes a first longitudinal beam and a second longitudinal beam located at the lower side of the first longitudinal beam, the longitudinal beam component constitutes a double longitudinal beam structure. When the frame structure is hit, the first longitudinal beam and the second longitudinal beam can bear the collision force respectively, and the collision force can be dispersed on the first longitudinal beam and the second longitudinal beam, reducing the damage probability of the longitudinal beam component, making the frame structure less likely to deform, and the frame structure has better collision performance. In addition, the first longitudinal beam and the second longitudinal beam are rigidly connected by a support member, and the first longitudinal beam, the second longitudinal beam and the support member form an I-shaped structure. The stability and reliability of the longitudinal structural component are good, which can improve the strength and rigidity of the frame structure and the dynamic rigidity of the frame structure as a whole. Secondly, at least one of the first longitudinal beam and the second longitudinal beam is connected to the support member through a detachable structure. When the collision force received by the first longitudinal beam and the second longitudinal beam reaches a certain value, the first longitudinal beam and / or the second longitudinal beam can be separated from the support member to unload the force, thereby bringing a better energy absorption effect.

[0060] The frame structure disclosed in the embodiment of the present application can be used for, but not limited to, fuel vehicles and new energy vehicles, where the vehicles can include, but are not limited to, vans, trucks, sedans, SUVs, etc. The vehicle using this frame structure is conducive to improving the structural strength and rigidity of the vehicle body and improving the safety of the vehicle.

[0061] According to some embodiments of the present application, referring to Figure 1 , Figure 1 A vehicle frame structure 100 provided for some embodiments of the present application includes: a longitudinal structure assembly 10, wherein the longitudinal structure assembly 10 includes a longitudinal beam assembly 1 and a support member 2. The longitudinal beam assembly 1 includes a first longitudinal beam 101 and a second longitudinal beam 102 located below the first longitudinal beam 101, and the first longitudinal beam 101 and the second longitudinal beam 102 extend along a first direction Y. The support member 2 is disposed between the first longitudinal beam 101 and the second longitudinal beam 102, and at least one of the first longitudinal beam 101 and the second longitudinal beam 102 is connected to the support member 2 through a detachable structure.

[0062] The first direction Y may refer to the longitudinal direction of the vehicle body 1000, that is, the length direction of the vehicle body 1000. That is, the longitudinal structural assembly 10 is disposed along the longitudinal direction of the vehicle frame structure 100 to play a longitudinal supporting role.

[0063] The first longitudinal beam 101 and the second longitudinal beam 102 may be, but are not limited to, a tubular component, a plate component, or a columnar component.

[0064] The support member 2 may refer to a component that plays a supporting role between the first longitudinal beam 101 and the second longitudinal beam 102. The support member 2 may be, but is not limited to, a tubular component, a plate component, or a columnar component.

[0065] At least one of the first longitudinal beam 101 and the second longitudinal beam 102 is connected to the support member 2 via a detachable structure. It can be understood that the first longitudinal beam 101 is connected to the support member 2 via a detachable structure, or the second longitudinal beam 102 is connected to the support member 2 via a detachable structure; or alternatively, the first longitudinal beam 101 is connected to the support member 2 via a detachable structure, and the second longitudinal beam 102 is connected to the support member 2 via a detachable structure.

[0066] In the above technical solution, when the collision force applied to the frame structure 100 is relatively large, the first longitudinal beam 101 and the second longitudinal beam 102 tend to be relatively displaced from each other, and the force acting on the first longitudinal beam 101 and the second longitudinal beam 102 may far exceed the limits of their own strength and rigidity. Therefore, the first longitudinal beam 101 and the second longitudinal beam 102 tend to be deformed more. At this time, under the action of the detachable structure, when the collision force exceeds a certain value, the support member 2 is detached from at least one of the first longitudinal beam 101 and the second longitudinal beam 102. At this time, the support member 2 can release the restraint on the first longitudinal beam 101 and the second longitudinal beam 102, so that the first longitudinal beam 101 and the second longitudinal beam 102 can unload the force through rapid displacement, thereby achieving an energy absorption effect.

[0067] In the above technical solution, since the longitudinal beam assembly 1 includes the first longitudinal beam 101 and the second longitudinal beam 102 located at the lower side of the first longitudinal beam 101, the longitudinal beam assembly 1 constitutes a double longitudinal beam structure. When the frame structure 100 is hit, the first longitudinal beam 101 and the second longitudinal beam 102 can bear the collision force respectively, and the collision force can be dispersed on the first longitudinal beam 101 and the second longitudinal beam 102, thereby reducing the damage probability of the longitudinal beam assembly 1, making the frame structure 100 less likely to be deformed, and the frame structure 100 has better collision performance. In addition, the first longitudinal beam 101 and the second longitudinal beam 102 are rigidly connected through the support member 2, and the first longitudinal beam 101, the second longitudinal beam 102 and the support member 2 form an I-shaped structure. When the first longitudinal beam 101 and the second longitudinal beam 102 are subjected to the collision force and tend to move away from each other in the vertical direction, the support member 2 can play the role of restraining the first longitudinal beam 101 and the second longitudinal beam 102, effectively inhibiting the first longitudinal beam 101 and the second longitudinal beam 102 from moving away from each other, thereby making the stability and reliability of the longitudinal structural assembly 10 better. It can be seen that the above method can not only improve the strength and rigidity of the frame structure 100, but also improve the overall dynamic rigidity of the frame structure 100. Secondly, at least one of the first longitudinal beam 101 and the second longitudinal beam 102 is connected to the support member 2 through a detachable structure. When the collision force on the first longitudinal beam 101 and the second longitudinal beam 102 reaches a certain value, the first longitudinal beam 101 and / or the second longitudinal beam 102 can be separated from the support member 2 to unload the force, thereby bringing a better energy absorption effect.

[0068] In some embodiments of the present application, the support member 2 is fixedly connected to the second longitudinal beam 102, and the support member 2 is connected to the first longitudinal beam 101 through a detachable structure. In the above technical solution, the support member 2 is fixedly connected to the second longitudinal beam 102, and is connected to the first longitudinal beam 101 through a detachable structure. In this way, the support member 2 can be connected and detached from the first longitudinal beam 101, and can also have a relatively good connection reliability with the second longitudinal beam 102, thereby taking into account the connection strength between the support member 2, the second longitudinal beam 102 and the first longitudinal beam 101, and can be detached to absorb energy.

[0069] In some embodiments of the present application, the detachable structure includes a connecting portion 3 and a detachable portion, the connecting portion 3 is arranged on the detachable portion, one of the connecting portion 3 and the detachable portion is arranged on the support member 2, and the other is arranged on the corresponding first longitudinal beam 101 and / or second longitudinal beam 102.

[0070] In the above technical scheme, when a detachable structure is provided between the support member 2 and the first longitudinal beam 101, one of the connecting portion 3 and the detachable portion may be provided on the first longitudinal beam 101, and the other may be provided on the support member 2; when a detachable structure is provided between the support member 2 and the second longitudinal beam 102, one of the connecting portion 3 and the detachable portion may be provided on the second longitudinal beam 102, and the other may be provided on the support member 2; when a detachable structure is provided between the support member 2 and the first longitudinal beam 101 and between the support member 2 and the second longitudinal beam 102, one of the connecting portion 3 and the detachable portion is provided on the support member 2, and the other may be provided on the corresponding first longitudinal beam 101 and second longitudinal beam 102.

[0071] In some embodiments of the present application, the detachable portion includes a mounting hole 21a and a connecting groove 21b, one end of the connecting groove 21b is connected to the mounting hole 21a, and the connecting portion 3 is inserted into the mounting hole 21a.

[0072] It can be understood that the connection part 3 may include but is not limited to bolts, rivets or connection columns.

[0073] In the above technical solution, when the support member 2 is subjected to a large force, the connecting portion 3 can act in the mounting hole 21a. Due to the existence of the connecting groove 21b, the connecting portion 3 can drive the mounting hole 21a to deform, so that the connecting portion 3 can detach from the mounting hole 21a to complete the detachment. This structure is relatively simple, convenient to process, and conducive to reducing costs.

[0074] In some embodiments of the present application, Figure 1 As shown, the support member 2 includes a first component 21 and a second component 22. One of the first component 21 and the first longitudinal beam 101 is provided with a mounting hole 21a and a connecting groove 21b, and the other is provided with a connecting portion 3. The second component 22 is fixedly connected to the second longitudinal beam 102 and is detachably connected to the first component 21 via a fastener 4.

[0075] The first component 21 and the second component 22 may be, but are not limited to, a tubular component, a plate component, and a columnar component.

[0076] The fastener 4 may be, but is not limited to, a bolt and a rivet. Figure 3 and Figure 4 The first component 21 may be provided with a first hole 21d, the second component 22 may be provided with a second hole 22a, and the fastener 4 may be inserted into the first hole 21d and the second hole 22a, so as to fix the first component 21 and the second component 22. Optionally, the number of the first hole 21d, the second hole 22a, and the fastener 4 may be, but not limited to, one, two, three, and the like.

[0077] It can be understood that by configuring the support member 2 to include the first component 21 and the second component 22, rather than a single component, the support member 2 forms a split structure. In this way, on the one hand, the volume of the first component 21 and the second component 22 can be made relatively small, and they can be assembled into the support member 2 after assembly, which is conducive to reducing the difficulty of manufacturing the support member 2 and facilitating the installation of the support member 2. On the other hand, when one of the first component 21 and the second component 22 is damaged, only the damaged component can be replaced and the undamaged component can be retained. Moreover, since the first component 21 can be detached from the second component 22 and the first longitudinal beam 101, on the one hand, it can unload force and absorb energy when the force is large, and on the other hand, the first component 21 is convenient for repair or replacement during later maintenance. It can be seen that the support member 2 using the above structure is conducive to reducing maintenance costs.

[0078] Secondly, during the assembly of the whole vehicle, some parts need to pass through the frame structure 100 during assembly, and these parts may include but are not limited to the steering mechanism and the electric drive unit (EDU). For example, when assembling the steering mechanism and the electric drive unit (EDU), they need to be assembled from the outside to the inside of the frame structure 100. Since the second component 22 is fixedly connected to the second longitudinal beam 102, the first component 21 and the second component 22 and the first longitudinal beam 101 are detachable, when some parts need to pass through the frame structure 100 during assembly, some parts can be assembled first, and then the first component 21 is connected to the first longitudinal beam 101 through the connecting part 3, and then connected to the second component 22 through the fastener 4, so that the support member 2 can reduce the installation interference with other parts during the assembly of the whole vehicle.

[0079] In the above technical solution, by configuring the support member 2 to include the first component 21 and the second component 22, the support member 2 forms a split structural design, which can reduce the difficulty of manufacturing the support member 2, facilitate the installation of the support member 2 on the first longitudinal beam 101 and the second longitudinal beam 102, and compared with the support member 2 being an integrated structure, when performing later maintenance, one of the first component 21 and the second component 22 can be replaced, thereby effectively reducing the maintenance cost and improving the maintenance economy. Secondly, since the first component 21 is detachable between the second component 22 and the first longitudinal beam 101, on the one hand, it is convenient for maintenance and replacement, and on the other hand, the first component 21 can be disassembled or installed later when there is assembly interference with some parts, thereby reducing the occurrence of installation interference problems, which is beneficial to the assembly of the whole vehicle.

[0080] In some embodiments of the present application, Figure 2 and Figure 5As shown, the first component 21 is provided with a mounting hole 21a and a connecting groove 21b, and the other end of the connecting groove 21b away from the mounting hole 21a is connected to the side edge 21e of the first component 21. In this technical solution, one end of the connecting groove 21b is connected to the mounting hole 21a, and the other end is connected to the side edge 21e of the first component 21, so that when the force applied to the support member 2 reaches a certain value, the connecting portion can be easily separated from the mounting hole 21a, thereby improving the success rate of separation.

[0081] The mounting hole 21a of the connection part 3 may be, but is not limited to, a round hole or a square hole. The mounting hole 21a may be used to mount the connection part 3, thereby fixing the first component 21 on the first longitudinal beam 101. The connecting groove 21b may play a role in weakening the strength of the region where the mounting hole 21a is located on the first component 21. Specifically, the connecting groove 21b may refer to a narrow slit or a notch connecting the mounting hole 21a and the connecting groove 21b.

[0082] In the above technical solution, when the frame structure 100 is subjected to a large collision force, the first longitudinal beam 101 and the second longitudinal beam 102 tend to be relatively displaced from each other, and the force acting on the first longitudinal beam 101 and the second longitudinal beam 102 may far exceed the limits of their own strength and rigidity. Therefore, the first longitudinal beam 101 and the second longitudinal beam 102 tend to be deformed more. At this time, since a connecting groove 21b is provided between the side edge 21e of the first component 21 and the mounting hole 21a, when the collision force exceeds a certain value, the connecting portion 3 can act on the connecting groove 21b. This makes the area near the connecting groove 21b on the first component 21 easy to deform and crack, so that the connecting part 3 can be separated from the mounting hole 21a. At this time, the support member 2 can release the restraint on the first longitudinal beam 101 and the second longitudinal beam 102, so that the first longitudinal beam 101 and the second longitudinal beam 102 can unload the force through rapid displacement, thereby achieving an energy absorption effect, reducing the probability of the first longitudinal beam 101 and the second longitudinal beam 102 being seriously damaged, and can reduce the collision force transmitted from the first longitudinal beam 101 and the second longitudinal beam 102 to the passenger compartment, thereby improving the safety of the passenger compartment.

[0083] For example, under certain working conditions, the collision force applied to the frame structure 100 may be greater than 30 KN. Under the action of the 30 KN collision force, the connecting portion 3 may act on the connecting groove 21 b to cause the first component 21 to crack, thereby causing the connecting portion 3 to detach from the mounting hole 21 a.

[0084] In some embodiments of the present application, Figure 1 As shown, a lower swing arm fixing portion 1021 is provided on the second longitudinal beam 102 , and the orthographic projection of the lower swing arm fixing portion 1021 on the horizontal plane and the orthographic projection of the support member 2 on the horizontal plane at least partially overlap.

[0085] The lower swing arm fixing portion 1021 can be used to connect the lower swing arm. The lower swing arm fixing portion 1021 can be, but is not limited to, a fixing hole or a mounting bracket.

[0086] The orthographic projection of the lower swing arm fixing portion 1021 on the horizontal plane and the orthographic projection of the support member 2 on the horizontal plane at least partially overlap. It can be understood that on the horizontal plane, the orthographic projection of the lower swing arm fixing portion 1021 and the orthographic projection of the support member 2 can be partially overlapped or completely overlapped.

[0087] In the above technical solution, it can be understood that the distance between the support member 2 and the lower swing arm fixing portion 1021 is relatively close, that is, the lower swing arm fixing portion 1021 and the support member 2 are arranged in the vertical direction as much as possible. Since the support member 2 can enhance the strength and rigidity of the second longitudinal beam 102, the lower swing arm fixing portion 1021 is close to the support member 2, and the strength and rigidity of the surrounding area of ​​the lower swing arm fixing portion 1021 on the second longitudinal beam 102 are better, which is beneficial to improving the dynamic rigidity of the position where the lower swing arm fixing portion 1021 is located.

[0088] In some embodiments of the present application, Figure 1 As shown, the longitudinal structural assembly 10 further includes a vibration-damping tower 5, which is located on the upper side of the first longitudinal beam 101 and connected to the first longitudinal beam 101, and the orthographic projection of the vibration-damping tower 5 on the horizontal plane at least partially overlaps with the orthographic projection of the support member 2 on the horizontal plane.

[0089] The vibration-damping tower 5 may refer to a key component connecting the shock absorber and the vehicle body, and is used to withstand the transmission of collision force and the transmission of the torsional force of the vehicle body when the left and right wheels are subjected to uneven force, so as to ensure the driving stability and safety of the vehicle. It can be seen that the vibration-damping tower 5 may be provided with a connection structure connected to the shock absorber and the vehicle body, and specifically, the connection structure may be the third hole 5a. On the horizontal plane, the orthographic projection of the vibration-damping tower 5 and the orthographic projection of the support member 2 may be partially overlapped or completely overlapped.

[0090] In the above technical solution, the distance between the vibration-damping tower 5 and the support member 2 can be relatively close, that is, the vibration-damping tower 5 and the support member 2 are arranged in the vertical direction as much as possible. Since the support member 2 can enhance the strength and rigidity of the first longitudinal beam 101, the vibration-damping tower 5 is close to the support member 2, and the strength and rigidity of the surrounding area of ​​the vibration-damping tower 5 on the first longitudinal beam 101 are relatively good. This is conducive to improving the dynamic rigidity of the position where the vibration-damping tower 5 is located, so that the vibration-damping tower 5 can be connected to the connection between the shock absorber and the vehicle body more reliably.

[0091] In some embodiments of the present application, Figure 2As shown, the first component 21 includes a first plate portion 211, a second plate portion 212, a third plate portion 213 and a fourth plate portion 214, and the second plate portion 212 and the third plate portion 213 are arranged at both ends of the first plate portion 211 along the first direction; the fourth plate portion 214 is located on the upper side of the first plate portion 211, and connects the first plate portion 211, the second plate portion 212 and the third plate portion 213, and the fourth plate portion 214 is provided with a mounting hole 21a and a connecting groove 21b.

[0092] In the above technical solution, by configuring the first component 21 to include the first plate portion 211, the second plate portion 212, the third plate portion 213 and the fourth plate portion 214, the first component 21 can form a hollow frame structure. This method can not only make the first component 21 have relatively high strength and rigidity, but also reduce the material consumption and manufacturing cost. On the other hand, by adopting this frame structure, the weight of the first component 21 is relatively light, which is conducive to reducing the weight of the frame structure 100, and can save labor during assembly, which is conducive to the assembly of the frame structure 100.

[0093] In some embodiments of the present application, Figure 2 As shown, the second plate portion 212 and the third plate portion 213 are provided with a first avoidance surface 21c at one end away from the first plate portion 211 , and the distance between the first avoidance surface 21c and the first plate portion 211 gradually decreases in the direction from the first longitudinal beam 101 toward the second longitudinal beam 102 .

[0094] Referring to the above, when the vehicle is assembled, some parts need to pass through the frame structure 100. One end of the frame structure composed of the first plate portion 211, the second plate portion 212, the third plate portion 213 and the fourth plate portion 214 is open. Figure 1 The direction from the first longitudinal beam 101 toward the second longitudinal beam 102 can refer to the third direction Z, and the distance between the first avoidance surface 21c and the first plate portion 211 can refer to the dimension along the second direction Y, which can also be understood as the width dimension of the second plate portion 212 and the third plate portion 213. That is to say, the width of the second plate portion 212 and the third plate portion 213 is narrow at the bottom and wide at the top, so the lower part of the first component 21 can form a larger avoidance space, which is convenient for avoiding some parts during the assembly of the whole vehicle.

[0095] Optionally, the first avoidance surface 21c may be, but is not limited to, an inclined surface and a curved surface.

[0096] In the above technical solution, the distance between the first avoidance surface 21c and the first plate portion 211 is gradually reduced in the direction from the first longitudinal beam 101 to the second longitudinal beam 102, so that the first component 21 can form a frame structure that is narrow at the bottom and wide at the top, and a relatively large space can be reserved at the bottom of the first component 21. When some parts are assembled from the outside to the inside of the frame structure 100, the probability of contact with the first component 21 when passing through the bottom of the first component 21 is reduced, which can reduce the occurrence of installation interference. Secondly, the first component 21 can form a frame structure that is narrow at the bottom and wide at the top, which can further reduce materials and thus further reduce costs.

[0097] In some embodiments of the present application, Figure 2 , Figure 3 and Figure 5 As shown, the second component 22 includes a main body 221 and a flange 222 . The main body 221 is connected to the first component 21 via a fastener 4 . The flange 222 is connected to the main body 221 , and the flange 222 is fixedly connected to the second longitudinal beam 102 .

[0098] In the above technical solution, the flange portion 222 may refer to a component of a sheet-like structure. The main body 221 is connected to the second longitudinal beam 102 through the flange portion 222, which can increase the contact area with the second longitudinal beam 102, so that the joining effect between the second component 22 and the second longitudinal beam 102 is better, thereby improving the connection reliability and stability of the second component 22 and the second longitudinal beam 102, and reducing the probability of separation between the second component 22 and the second longitudinal beam 102.

[0099] In some embodiments of the present application, Figure 2 As shown, the main body 221 includes a fifth plate portion 2211 and a sixth plate portion 2212 . The fifth plate portion 2211 is connected to the first component 21 via a fastener 4 ; the sixth plate portion 2212 is connected to the fifth plate portion 2211 .

[0100] In the above technical solution, the fifth plate portion 2211 and the sixth plate portion 2212 can form a V-shaped structure or an L-shaped structure. The strength and rigidity of the main body portion 221 with such a structure are relatively good, and the impact resistance and deformation resistance are relatively good. Secondly, by setting the main body portion 221 to include the fifth plate portion 2211 and the sixth plate portion 2212, less material is required, which is conducive to reducing weight, and it is more labor-saving when the main body portion 221 is assembled with the second longitudinal beam 102. Secondly, one side of the main body portion 221 formed by the fifth plate portion 2211 and the sixth plate portion 2212 is open, which can form an avoidance space to reduce the occurrence of assembly interference with some parts during the assembly of the whole vehicle.

[0101] In some embodiments of the present application, Figure 2As shown, a second avoidance surface 221 a is provided at one end of the fifth plate portion 2211 away from the sixth plate portion 2212 , and the distance between the second avoidance surface 221 a and the sixth plate portion 2212 gradually decreases in a direction from the first longitudinal beam 101 toward the second longitudinal beam 102 .

[0102] refer to Figure 1 The direction from the first longitudinal beam 101 toward the second longitudinal beam 102 can refer to the third direction Z, and the distance between the second avoidance surface 221a and the sixth plate portion 2212 can refer to the dimension along the first direction X, which can also be understood as the width dimension of the fifth plate portion 2211. That is to say, the width of the fifth plate portion 2211 is narrow at the top and wide at the bottom, so the upper part of the fifth plate portion 2211 can form a larger avoidance space, which is convenient for avoiding some parts during the assembly of the whole vehicle.

[0103] Optionally, the second avoidance surface 221 a may be, but is not limited to, an inclined surface and an arc surface.

[0104] In the above technical solution, the distance between the second avoidance surface 221a and the sixth plate portion 2212 is gradually reduced in the direction from the first longitudinal beam 101 to the second longitudinal beam 102, so that the fifth plate portion 2211 can form a frame structure that is narrow at the bottom and wide at the top, and a relatively large space can be reserved on the upper side of the fifth plate portion 2211. When some parts are assembled from the outside to the inside of the frame structure 100, the probability of contact with the fifth plate portion 2211 when passing through the upper side of the fifth plate portion 2211 is reduced, which can reduce the occurrence of installation interference. Secondly, the fifth plate portion 2211 can form a frame structure that is narrow at the bottom and wide at the top, which can further reduce materials, thereby further reducing costs.

[0105] In some embodiments of the present application, there are two longitudinal structural components 10 , and the two longitudinal structural components 10 are arranged along the second direction Y at an interval.

[0106] The second direction Y may refer to the length direction of the vehicle body 1000 , and may also refer to the left and right sides of the vehicle body 1000 , that is, the frame structure 100 includes two longitudinal structural components 10 , and the two longitudinal structural components 10 are located at both ends of the second direction Y of the frame structure 100 .

[0107] In the above technical solution, since the longitudinal beam assembly 1 in the longitudinal structure assembly 10 constitutes a double longitudinal beam structure, and the first longitudinal beam 101 and the second longitudinal beam 102 are rigidly connected by the support member 2, the first longitudinal beam 101, the second longitudinal beam 102 and the support member 2 form an I-shaped structure, and the strength and rigidity of the longitudinal structure assembly 10 are relatively good. On this basis, by configuring the frame structure 100 to include two longitudinal structure assemblies 10, the strength and rigidity of the frame structure 100 at both ends of the second direction Y are relatively good, which is beneficial to improving the overall strength and rigidity of the frame structure 100.

[0108] In some embodiments of the present application, Figure 1 As shown, there are two longitudinal structural components 10 , which are spaced apart along the second direction. The frame structure 100 also includes a first cross beam 6 and a second cross beam 7 . The first cross beam 6 is connected to the two vibration damping towers 5 , and the second cross beam 7 is connected to the two second longitudinal beams 102 .

[0109] The first cross beam 6 and the second cross beam 7 may be, but are not limited to, tubular components, plate components, and columnar components. The connection methods among the first cross beam 6, the second cross beam 7, the second longitudinal beam 102, and the vibration reduction tower 5 may include, but are not limited to, welding, bolt connection, and riveting.

[0110] The first cross beam 6 enables the two vibration-damping towers 5 to be rigidly connected, thereby improving the connection stability and reliability between the vibration-damping towers 5 and the first longitudinal beam 101. When one of the two vibration-damping towers 5 is hit, the vibration-damping tower 5 can transmit the collision force to the other vibration-damping tower 5 through the first cross beam 6, thereby dispersing the collision force, which is beneficial to reducing the force on each vibration-damping tower 5 and the degree of deformation of each vibration-damping tower 5, thereby reducing the probability of damage to the vibration-damping tower 5 and reducing the maintenance cost.

[0111] In the above technical solution, the first cross beam 6, the two vibration-damping towers 5, the second cross beam 7, and the two second longitudinal beams 102 can form a rectangular frame structure, which can improve the rigidity and strength of the lower part of the frame structure 100. When the frame structure 100 collides and the collision force is transmitted to the second longitudinal beams 102, the collision force can be dispersed on the first cross beam 6, the second cross beam 7 and the two second longitudinal beams 102, reducing the force on the second longitudinal beams 102, thereby reducing the probability of damage to the second longitudinal beams 102. Since the second longitudinal beams 102 are the main load-bearing components in the frame structure 100, the reliability of the frame structure 100 can be improved by reducing the damage to the second longitudinal beams 102.

[0112] In some embodiments of the present application, the first crossbeam 6 has a central axis parallel to the second direction, and an extension line of a projection line of the central axis on a horizontal plane passes through a direct projection of the support member 2 on the horizontal plane.

[0113] In the above technical solution, it can be understood that the distance between the first cross beam 6 and the support member 2 is relatively close, that is, the first cross beam 6, the support member 2, the second cross beam 7 and the two vibration damping towers 5 are arranged in the vertical direction as much as possible, so that the rectangular frame structure formed by the first cross beam 6, the two vibration damping towers 5, the second cross beam 7, and the two second longitudinal beams 102 is a vertically placed frame structure, which can improve the strength and rigidity of the rear side of the frame structure 100.

[0114] In some embodiments of the present application, the orthographic projection of the vibration-damping tower 5 on the horizontal plane and the orthographic projection of the second cross beam 7 on the horizontal plane at least partially overlap.

[0115] It can be understood that, on the horizontal plane, the orthographic projection of the vibration-damping tower 5 and the orthographic projection of the second cross beam 7 can be partially overlapped or completely overlapped. In the above technical solution, it can be understood that the distance between the vibration-damping tower 5, the second cross beam 7 and the support member 2 is relatively close. On the one hand, the first cross beam 6, the support member 2, the second cross beam 7 and the two vibration-damping towers 5 are arranged in the vertical direction as much as possible, so that the rectangular frame structure formed by the first cross beam 6, the two vibration-damping towers 5, the second cross beam 7 and the two second longitudinal beams 102 is a vertically placed frame structure, which can improve the strength and rigidity of the rear side of the frame structure 100. On the other hand, the second cross beam 7 and the support member 2 are relatively close, which can increase the support effect of the support member 2.

[0116] In some embodiments of the present application, Figure 1 As shown, the frame structure 100 further includes a third cross beam 8 , which connects the two second longitudinal beams 102 , and the third cross beam 8 is spaced apart from the second cross beam 7 along the first direction.

[0117] The third cross beam 8 may be, but is not limited to, a tubular component, a plate component, and a columnar component. The connection method between the third cross beam 8 and the second longitudinal beam 102 may include, but is not limited to, welding, bolt connection, and hot riveting connection.

[0118] In the above technical solution, the third cross beam 8, the second cross beam 7 and the two second longitudinal beams 102 constitute a rectangular frame structure, which can improve the rigidity and strength of the lower part of the frame structure 100. When the frame structure 100 collides and the collision force is transmitted to the second longitudinal beams 102, the collision force can be dispersed on the third cross beam 8, the second cross beam 7 and the two second longitudinal beams 102, reducing the force on the second longitudinal beams 102, thereby reducing the probability of damage to the second longitudinal beams 102. Since the second longitudinal beams 102 are the main load-bearing components in the frame structure 100, the reliability of the frame structure 100 can be improved by reducing the damage to the second longitudinal beams 102.

[0119] In some embodiments of the present application, an EDU rear suspension fixing portion (not shown) is provided on the second cross beam 7 and the third cross beam 8 .

[0120] The EDU rear suspension fixing part may refer to a structure for installing the EDU rear suspension, for example, the EDU rear suspension fixing part may be but is not limited to a mounting hole and a connecting bolt, etc. When the EDU rear suspension fixing part is a mounting hole, the bolt on the EDU rear suspension may be installed in the mounting hole, thereby fixing the EDU rear suspension on the second cross beam 7 and the third cross beam 8; when the EDU rear suspension fixing part is a bolt, the bolt may directly cooperate with the hole on the EDU rear suspension.

[0121] In the above technical solution, since the EDU rear suspension is generally connected to the front sub-frame, it can be seen that the second cross beam 7 and the third cross beam 8 can integrate the function of the front sub-frame. Compared with the related art that requires an independent front sub-frame to be connected to the frame, the second cross beam 7 and the third cross beam 8 integrate part of the front sub-frame function, which can reduce the number of parts. Moreover, since the second cross beam 7 and the third cross beam 8 are directly connected to the second longitudinal beam 102, the size of the frame in vertical height can be reduced, which is beneficial to reduce the volume of the frame structure 100, reduce the weight of the frame structure 100, and thus reduce the cost.

[0122] Second, as Figure 6 As shown, the embodiment of the present application also provides a vehicle body 1000, including the frame structure 100 mentioned above. The vehicle body 1000 may be a load-bearing vehicle body. The vehicle body 1000 may also include a vehicle body frame 300, and the frame structure 100 is connected to the front side of the vehicle body frame 300. Other structures and operations of the load-bearing vehicle body 1000 are known to those skilled in the art and will not be described in detail here.

[0123] In the above technical solution, since the longitudinal beam assembly 1 in the frame structure 100 constitutes a double longitudinal beam structure, and the first longitudinal beam 101, the second longitudinal beam 102 and the support member 2 form an I-shaped structure, the stability and reliability of the frame structure 100 are better, and the overall dynamic stiffness can be improved. The vehicle body 1000 adopts this frame structure 100, and the stiffness and strength of the front suspension structure of the vehicle body 1000 are improved.

[0124] In a third aspect, an embodiment of the present application further provides a vehicle, comprising the frame structure 100 or the vehicle body 1000 as described above.

[0125] In the above technical solution, since the longitudinal beam assembly 1 in the vehicle body 1000 and the frame structure 100 constitutes a double longitudinal beam structure, the frame structure 100 is not easily deformed, and the frame structure 100 has better collision performance. In addition, the first longitudinal beam 101, the second longitudinal beam 102 and the support member 2 form an I-shaped structure, so that the stability and reliability of the longitudinal structure assembly 10 are better. It can be seen that the above method can improve the strength and rigidity of the frame structure 100, and can also improve the overall dynamic rigidity of the frame structure 100. The vehicle adopts the above frame structure 100 or the vehicle body 1000, which can effectively improve the safety of the front cabin structure.

[0126] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0127] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A frame structure, characterized in that: include: A longitudinal structural component, the longitudinal structural component comprising: A longitudinal beam assembly, the longitudinal beam assembly comprising a first longitudinal beam and a second longitudinal beam located below the first longitudinal beam, the first longitudinal beam and the second longitudinal beam extending along a first direction; A support member is provided between the first longitudinal beam and the second longitudinal beam, and at least one of the first longitudinal beam and the second longitudinal beam is connected to the support member through a detachable structure.

2. The frame structure according to claim 1, characterized in that: The support member is fixedly connected to the second longitudinal beam, and the support member is connected to the first longitudinal beam via the detachable structure.

3. The frame structure according to claim 1 or 2, characterized in that: The detachable structure includes a connecting portion and a detachable portion, wherein the connecting portion is arranged on the detachable portion, one of the connecting portion and the detachable portion is arranged on the supporting member, and the other is arranged on the corresponding first longitudinal beam and / or the second longitudinal beam.

4. The frame structure according to claim 3, characterized in that: The detachable portion comprises a mounting hole and a connecting groove, one end of the connecting groove is connected to the mounting hole, and the connecting portion is penetrated through the mounting hole.

5. The frame structure according to claim 4, characterized in that: The support member includes a first component and a second component, one of the first component and the first longitudinal beam is provided with the mounting hole and the connecting groove, and the other is provided with the connecting portion, and the second component is fixedly connected to the second longitudinal beam and is detachably connected to the first component via a fastener.

6. The frame structure according to claim 5, characterized in that: The first component is provided with the mounting hole and the connecting groove, and the other end of the connecting groove away from the mounting hole is connected to the side edge of the first component.

7. The vehicle frame structure according to any one of claims 1 to 6, characterized in that: The second longitudinal beam is provided with a lower swing arm fixing portion, and the orthographic projection of the lower swing arm fixing portion on the horizontal plane and the orthographic projection of the support member on the horizontal plane at least partially overlap.

8. The vehicle frame structure according to any one of claims 1 to 7, characterized in that: The longitudinal structural assembly further includes: a vibration-damping tower, which is located on the upper side of the first longitudinal beam and connected to the first longitudinal beam, and the orthographic projection of the vibration-damping tower on the horizontal plane and the orthographic projection of the support member on the horizontal plane at least partially overlap.

9. The vehicle frame structure according to claim 5 or 6, characterized in that: The first component comprises: first plate portion; a second plate portion and a third plate portion, wherein the second plate portion and the third plate portion are arranged at two ends of the first plate portion along the first direction; The fourth plate portion is located on the upper side of the first plate portion and connects the first plate portion, the second plate portion and the third plate portion, and the fourth plate portion is provided with the mounting hole and the connecting groove.

10. The vehicle frame structure according to claim 9, characterized in that: A first avoidance surface is provided at one end of the second plate portion and the third plate portion away from the first plate portion, and a distance between the first avoidance surface and the first plate portion gradually decreases in a direction from the first longitudinal beam toward the second longitudinal beam.

11. The vehicle frame structure according to claim 5 or 6, characterized in that: The second component comprises: a main body portion, the main body portion being connected to the first component via the fastener; A flange portion, wherein the flange portion is connected to the main body portion, and the flange portion is fixedly connected to the second longitudinal beam.

12. The vehicle frame structure according to claim 11, characterized in that: The main body comprises: a fifth plate portion, the fifth plate portion being connected to the first component via the fastener; The sixth plate portion is connected to the fifth plate portion.

13. The vehicle frame structure according to claim 12, characterized in that: A second avoidance surface is provided at one end of the fifth plate portion away from the sixth plate portion, and a distance between the second avoidance surface and the sixth plate portion gradually decreases in a direction from the first longitudinal beam toward the second longitudinal beam.

14. The vehicle frame structure according to any one of claims 1 to 13, characterized in that: There are two longitudinal structural components, and the two longitudinal structural components are spaced apart along the second direction.

15. The vehicle frame structure according to claim 8, characterized in that: There are two longitudinal structural components, which are spaced apart along the second direction. The frame structure also includes: a first cross beam and a second cross beam, wherein the first cross beam is connected to the two vibration damping towers, and the second cross beam is connected to the two second longitudinal beams.

16. The vehicle frame structure according to claim 15, characterized in that: The first crossbeam has a central axis parallel to the second direction, and an extension line of a projection line of the central axis on a horizontal plane passes through the orthographic projection of the support member on the horizontal plane.

17. The vehicle frame structure according to claim 15 or 16, characterized in that: The orthographic projection of the vibration-damping tower on the horizontal plane and the orthographic projection of the second cross beam on the horizontal plane at least partially overlap.

18. The vehicle frame structure according to any one of claims 15 to 17, characterized in that: The frame structure further includes: a third cross beam, the third cross beam connects the two second longitudinal beams, and the third cross beam is spaced apart from the second cross beams along the first direction.

19. The vehicle frame structure according to claim 18, characterized in that: The second cross beam and the third cross beam are provided with EDU rear suspension fixing parts.

20. A vehicle body, characterized in that: The vehicle frame comprises the frame structure as claimed in any one of claims 1 to 19.

21. A vehicle, characterized in that: It comprises the frame structure as claimed in any one of claims 1 to 19, or the vehicle body as claimed in claim 20.

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