Frame structure and vehicle

Abstract

The utility model discloses a frame structure and a vehicle, and relates to the technical field of automobile bodies. The reinforcing structure comprises three connecting limbs which are distributed in a radial mode, one ends of the three connecting limbs are connected to form a structure center, one connecting limb is a first connecting limb used for being connected with the front longitudinal beam, and the other connecting limb is a second connecting limb used for being connected with the lower end of the A column and the front end of the threshold beam. The other connecting limb is a third connecting limb used for being connected with the middle channel piece. According to the vehicle frame structure, the adopted reinforcing structure is stable in force transmission and capable of dispersing loads.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile bodies, in particular to a frame structure and a vehicle. Background Art

[0002] In some traditional vehicles, the kickdown structure is mostly a single-layer long plate design, which is not only simple in shape but also has a single force transmission direction when subjected to impact loads. This design has limited strengthening effect when dealing with complex driving conditions. The single-layer long plate structure is prone to deformation or damage when subjected to mechanical stress caused by high torque, which in turn affects the overall performance and safety of the vehicle.

[0003] In recent years, extended-range vehicles have attracted much attention. Such vehicles require additional battery packs, but the existing kickdown structure often cannot fully meet the needs of such vehicles in terms of design and performance.

[0004] Therefore, there is room for improvement in kickdown. Summary of the invention

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the first aspect of the utility model aims to provide a frame structure, the reinforcement structure adopted has stable force transmission and can disperse the load.

[0006] A second aspect of the present invention aims to provide a vehicle.

[0007] According to the vehicle frame structure of the first embodiment of the utility model, the vehicle frame structure comprises: a front longitudinal beam, a door sill beam, an A-pillar, a middle channel member and a reinforcement structure. The reinforcement structure comprises three connecting limbs, the three connecting limbs are radially distributed, and one end of the three connecting limbs is connected to form a structural center, wherein one of the connecting limbs is a first connecting limb connecting the front longitudinal beam, another connecting limb is a second connecting limb connecting the lower end of the A-pillar and the front end of the door sill beam, and another connecting limb is a third connecting limb connecting the middle channel member.

[0008] According to the reinforcement structure of the first embodiment of the utility model, the purpose of stable force transmission and effective load dispersion is achieved through three radially distributed connecting limbs. Specifically, this structural design not only enhances the overall rigidity and strength of the device, but also optimizes the force transmission path, so that the impact force generated during the forced downshift process can be more evenly distributed and absorbed.

[0009] The strengthening structure according to some embodiments of the present utility model includes: a main body member; an upper member, the upper member being an integral part, the upper member including a first bent section and a second bent section, the first bent section being connected to the main body member; a part of the main body member is located on the first connecting limb, the first bent section and a part of the main body member are located on the second connecting limb, and the second bent section is located on the third connecting limb.

[0010] In some embodiments, the strengthening structure further includes: a middle channel overlapping member, the middle channel overlapping member being connected to the bottom of the second bent section, the edge of the middle channel overlapping member being connected to the edge of the main body member, and a first energy absorption cavity being formed between the middle channel overlapping member and the second bent section.

[0011] The strengthening structure according to some embodiments of the present utility model further includes: a strengthening member, the strengthening member being provided on the main body member, a part of the strengthening member being located between the main body member and the upper member, a second energy absorption cavity being formed between the main body member and the strengthening member, and a third energy absorption cavity being formed between the strengthening member and the upper member.

[0012] In some embodiments, the strengthening member includes: a first strengthening plate, the first strengthening plate being connected to the main body member, the first strengthening plate and a part of the main body member constituting the first connecting limb, and one end of the first strengthening plate being located at the center of the structure; a second strengthening plate, the second strengthening plate being connected to the main body member, one end of the second strengthening plate being located at the center of the structure and being sandwiched between the first strengthening plate and the main body member, a part of the second strengthening plate being sandwiched between the first bent section and the main body member, and the second strengthening plate, the first bent section and a part of the main body member constituting the second connecting limb.

[0013] In some embodiments, a raised first convex ridge is provided on the second strengthening plate, the first convex ridge extending from the center of the structure to the end of the second connecting limb; the first convex ridge is horizontally located between the edge of the main body member away from the third connecting limb and the edge of the first bent section away from the third connecting limb.

[0014] In some embodiments, raised second and third convex ridges are further provided on the second strengthening plate, one ends of the second and third convex ridges being connected to the first convex ridge, and the other ends extending respectively towards the ends of the first and third connecting limbs; the second convex ridge is connected below the first strengthening plate, and the third convex ridge is connected below the upper member; a raised fourth convex ridge is provided on the first strengthening plate, the fourth convex ridge extending along the end of the first strengthening plate towards the center of the structure, and the part of the fourth convex ridge located at the center of the structure being connected below the upper member.

[0015] In some embodiments, on the first connecting limb, above the first reinforcing plate, at the edge of the first reinforcing plate away from the third connecting limb, and at the edge of the main body member away from the third connecting limb, a first connecting portion for connecting the front longitudinal beam is formed; on the second connecting limb, at the edge of the first bent segment away from the third connecting limb, a second connecting portion for connecting the front longitudinal beam is formed; on the second connecting limb, at the first bent segment and at the edge of the main body member away from the structural center, a third connecting portion for connecting the lower end of the A-pillar and the front end of the sill beam is formed; on the third connecting limb, at the edge of the second bent segment away from the structural center, a fourth connecting portion for connecting the middle channel member is formed.

[0016] According to some embodiments of the present invention, the reinforcing structure is formed by laminating multiple layers of plates, and flanges for welding are provided at the edges of the three connecting limbs.

[0017] According to some embodiments of the present invention, a vehicle frame structure further includes: a battery bracket, the lateral sides of which are respectively connected to the sill beam and the middle channel member; the front end of the battery bracket is connected to the reinforcing structure.

[0018] According to a vehicle of some embodiments of the second aspect of the present invention, it includes the vehicle frame structure described in this application.

[0019] The additional aspects and advantages of the present invention will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0020] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0021] Figure 1 It is a schematic diagram of the position of the reinforcing structure of the embodiment of the present invention in the vehicle frame structure;

[0022] Figure 2 It is a schematic diagram of the forced shifting device structure and its components of the embodiment of the present invention;

[0023] Figure 3 It is a schematic diagram of the positions of the first connecting portion and the second connecting portion in the forced shifting device structure of the embodiment of the present invention;

[0024] Figure 4 It is a schematic diagram of the position of the third connecting portion in the forced shifting device structure of the embodiment of the present invention;

[0025] Figure 5Schematic diagram of the position of the fourth connecting part in the forced gear shifting device structure of the embodiment of the present utility model;

[0026] Figure 6 A force transmission path diagram of the forced gear shifting device structure of the embodiment of the present utility model;

[0027] Figure 7 Another force transmission path diagram of the forced gear shifting device structure of the embodiment of the present utility model;

[0028] Figure 8 Another force transmission path diagram of the forced gear shifting device structure of the embodiment of the present utility model;

[0029] Figure 9 Connection schematic diagram of the forced gear shifting device structure and the battery bracket in the embodiment of the present utility model.

[0030] Reference numerals:

[0031] Reinforcement structure 100, connecting limb 10, first connecting limb 1, second connecting limb 2, third connecting limb 3, structure center 4, main body member 11, upper member 12, first bending section 121, second bending section 122, middle channel overlapping member 13, reinforcing member 14, first reinforcing plate 141, second reinforcing plate 142, first ridge 1421, second ridge 1422, third ridge 1423, fourth ridge 1411, first connecting part 15, second connecting part 16, third connecting part 17, fourth connecting part 18, flanging 19,

[0032] Frame structure 200, front longitudinal beam 201, A-pillar 202, sill beam 203, middle channel member 204, battery bracket 205, battery pack 300. Detailed description of the specific implementation

[0033] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation and be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] It should be noted that in the description of the present application, the meaning of "and / or" includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously.

[0037] The following refers to Figures 1 - 9 Describe the frame structure 200 according to an embodiment of the present utility model.

[0038] It is worth noting that the vehicle types applicable to the reinforcement structure 100 adopted in the frame structure 200 according to the embodiments of the present application are not limited, and it can be a vehicle with left-hand drive or a vehicle with right-hand drive. After the cab position of the vehicle is determined, the distribution position of the reinforcement structure 100 can be adaptively designed.

[0039] In an embodiment of the present utility model, as Figure 1 shown, taking the reinforcement structure 100 being arranged at the left front part of the vehicle as an example for description. It is easy for those skilled in the art to understand that when the reinforcement structure 100 is arranged at the right front part of the vehicle, it has the same beneficial effects.

[0040] In an embodiment of the present utility model, the frame structure 200 includes: a front longitudinal beam 201, a sill beam 203, an A-pillar 202, a center tunnel member 204, and a reinforcement structure 100.

[0041] As Figures 2 - 5As shown, the strengthening structure 100 includes three connecting limbs 10. The three connecting limbs 10 are radially distributed, and one end of the three connecting limbs 10 is connected to form the structure center 4.

[0042] By integrating the three connecting limbs 10, the strengthening structure 100 enables the three connecting limbs 10 to jointly form an efficient and stable force transmission system. Among them, one connecting limb 10 is the main force-bearing point, and the other two connecting limbs 10 form the extension of the force transmission path, thereby improving the force transmission stability of the forced downshift device.

[0043] One of the connecting limbs 10 is the first connecting limb 1 for connecting the front longitudinal beam 201, another connecting limb 10 is the second connecting limb 2 for connecting the lower end of the A-pillar 202 and the front end of the sill beam 203, and another connecting limb 10 is the third connecting limb 3 for connecting the middle channel member 204.

[0044] First, combined with Figures 6 - 7 , the first connecting limb 1, as the connection point with the front longitudinal beam 201, undertakes the task of transmitting power to the entire strengthening structure 100. Its design fully considers the matching degree and connection strength with the front longitudinal beam 201, ensuring a stable connection state under various working conditions and preventing power loss or safety hazards caused by loose or broken connections.

[0045] Second, combined with Figure 1 、 Figure 7 , the second connecting limb 2 connects the lower end of the A-pillar 202 and the front end of the sill beam 203, thus integrating the second connecting limb 2 into the vehicle body structure. When the vehicle performs a forced downshift operation, through the second connecting limb 2, the lateral force generated due to the instantaneous increase in power can be effectively dispersed and transmitted to the entire vehicle body structure quickly and smoothly through the lower end of the A-pillar 202, which is a side weighing structure of the vehicle body, and the front end of the sill beam 203, which is a main transverse strengthening member 14. Through such force transmission, the stability of the strengthening structure 100 under force is enhanced, and the risk of deformation or damage to the strengthening structure 100 caused by excessive local force is reduced.

[0046] Finally, combined with Figure 1 、 Figure 7 , the connection of the third connecting limb 3 with the middle channel member 204 realizes the dual support of the strengthening structure 100 in the longitudinal and transverse directions of the vehicle. The middle channel member 204, as an important structural member in the center of the vehicle body, undertakes the functions of transmitting and distributing loads and is also related to the handling stability of the vehicle. By closely connecting the forced shifting device with the middle channel member 204, the entire strengthening structure 100 can maintain a more stable posture during vehicle driving, reducing performance fluctuations caused by vibration or bump.

[0047] Such as Figure 2As shown, the reinforcement structure 100 according to some embodiments of the present utility model includes: a main body member 11 and an upper member 12.

[0048] The main body member 11 serves as the main component of the reinforcement structure 100, bearing the main mechanical functions and structural strength. The upper member 12 is disposed above the main body member 11. In this way, an efficient force transmission path is formed between the main body member 11 and the upper member 12.

[0049] Specifically, the external force received by the main body member 11 can be transmitted through the upper member 12, or the external force received by the upper member 12 can be transmitted through the main body member 11 to ensure the overall stability and reliability of the vehicle under various complex conditions.

[0050] It is known that the reinforcement structure 100 further includes a trigger member (not shown in the figure). The trigger member is disposed above the upper member 12 and below the accelerator pedal. When the driver deeply steps on the accelerator pedal for sudden acceleration or overtaking, the trigger member in the reinforcement structure 100 can immediately sense and respond, and quickly improve the power output of the vehicle by forced downshifting.

[0051] Therefore, the upper member 12 not only forms a transition in the frame structure 200 as a force transmission medium, but also directly bears the force from the driver.

[0052] To improve the strength of the upper member 12, the upper member 12 is a one-piece member. It is formed by integral machining or integral casting, without additional joints or welds, which can improve the strength of the upper member 12, and further enhance the integrity and strength of the reinforcement structure 100.

[0053] As Figures 2 - 5 shown, the upper member 12 includes a first bending section 121 and a second bending section 122.

[0054] By setting the first bending section 121 and the second bending section 122, the force transmission path of the upper member 12 in the reinforcement structure 100 is optimized.

[0055] First, the first bending section 121 is connected to the main body member 11. This ensures the close fit and reliable force transmission between the upper member 12 and the main body member 11.

[0056] Part of the main body member 11 is located in the first connecting limb 1. After part of the main body member 11 is connected to the first connecting limb 1, it helps the force transmission between the upper member 12 and the main body member 11 to be more smooth, ensuring the force transmission efficiency.

[0057] The first bending section 121 and part of the main body member 11 are located in the second connecting limb 2, and the second bending section 122 is located in the third connecting limb 3.

[0058] During the vehicle's driving process, the front longitudinal beam 201 is subjected to various external forces from the road surface, the engine, and the vehicle's dynamic changes. These external forces are initially transmitted through a part of the main body member 11, that is, the part of the main body member 11 directly connected to or close to the longitudinal beam.

[0059] Then, these external forces are transmitted along the main body member 11 to the first connecting limb 1 and are ready to be further transmitted to other parts of the device.

[0060] Combined with Figures 6 - 8 , during the force transmission process, the first connecting limb 1 causes the force to change direction and distributes the force. A part of the distributed force is transmitted along the second connecting limb 2 in the left direction of the frame structure 200. On this path, the force passes through the first bending section 121 of the upper component 12. This bending section not only serves as a force transmission medium but also fine-tunes the direction of the force through its specific bending angle to ensure a smooth transition of the force. At the same time, the force also passes along another part of the main body member 11 on the second connecting limb 2 and finally reaches the lower end of the A-pillar 202 of the frame structure 200 and the front end of the sill beam 203. In this process, the second connecting limb 2 and the components on it together serve as a force transition bridge, effectively changing the direction of the force and optimizing the distribution of the external force, significantly reducing the risk of stress concentration and component deformation.

[0061] As Figure 8 shown, at the same time, another part of the force is transmitted along a path opposite to the left direction, that is, in the right direction of the frame structure 200. When the force is transmitted to the third connecting limb 3, the second bending section 122 enables the force to be transmitted smoothly and efficiently to the corresponding part of the right frame structure 200. In this way, the second bending section 122 not only ensures the effective transmission of the force but also further improves the stability and durability of the entire device through its structural design. Combined with Figures 3 - 9 , in this article, the left and right are distinguished by the vehicle's forward direction.

[0062] As Figures 2 - 5 shown, in some embodiments, the strengthening structure 100 further includes: a middle channel lap joint 13. The middle channel lap joint 13 is connected to the bottom of the second bending section 122. The edge of the middle channel lap joint 13 is connected to the edge of the main body member 11. A first energy absorption cavity is formed between the middle channel lap joint 13 and the second bending section 122 (due to the viewing angle, the first energy absorption cavity is on the other side).

[0063] The edge of the middle channel lap joint 13 is closely connected to the edge of the main body member 11. This connection method ensures the structural stability and also provides a stable path for force transmission.

[0064] Since a first energy absorption cavity is formed between the middle channel lap joint 13 and the second bending section 122. Combined with Figure 5When an external force acts on the reinforcement structure 100, the first energy absorption cavity can respond quickly and absorb a part of the external force energy through the collapse of its structure. This collapse energy absorption mechanism effectively reduces the direct impact of the external force on the reinforcement structure 100 and the connected components, thus protecting the integrity of the surrounding structures. At the same time, the middle channel overlapping part 13 does not completely block the force transmission path, but allows the remaining external force to continue to be transmitted to other parts of the reinforcement structure 100 under control.

[0065] Therefore, the middle channel overlapping part 13 and the first energy absorption cavity formed thereby provide double protection in the forced downshift device: on the one hand, the impact of the external force is reduced through collapse energy absorption; on the other hand, the necessary force transmission is ensured to proceed. This design not only improves the safety performance of the reinforcement structure 100 but also maintains the integrity of its function.

[0066] As Figure 2 shown, the reinforcement structure 100 according to some embodiments of the present invention further includes: a reinforcing member 14. The reinforcing member 14 is provided on the main body member 11, and a part of the reinforcing member 14 is located between the main body member 11 and the upper member 12.

[0067] By arranging in this way, the connection between the main body member 11 and the upper member 12 is further stabilized, providing additional support between the two and improving the force transmission efficiency. At the same time, the reinforcing member 14 arranged in this position also forms two important energy absorption cavities: the second energy absorption cavity and the third energy absorption cavity (the second energy absorption cavity and the third energy absorption cavity are inside due to the viewing angle).

[0068] Combined with Figure 3 , wherein, a second energy absorption cavity is formed between the main body member 11 and the reinforcing member 14. When the reinforcement structure 100 is subjected to an external force impact, the first energy absorption cavity can first absorb and disperse a part of the energy, thereby reducing the direct impact on the main body member 11 and the upper member 12. This energy absorption mechanism helps to protect the structural integrity of the main body member 11 and the upper member 12 and prevent them from being damaged due to excessive stress.

[0069] A third energy absorption cavity is formed between the reinforcing member 14 and the upper member 12. The third energy absorption cavity is similar to the second energy absorption cavity. When subjected to an external force, the third energy absorption cavity can absorb energy through the deformation and collapse of its structure, thereby further reducing the impact on the upper member 12. Thus, through this double energy absorption cavity, not only the impact resistance of the overall structure is improved, but also the force transmission becomes more stable and controllable.

[0070] In some embodiments, as Figure 2 shown, the reinforcing member 14 includes: a first reinforcing plate 141 and a second reinforcing plate 142.

[0071] As Figures 3 - 5As shown, the first reinforcing plate 141 is connected to the main body member 11. The first reinforcing plate 141 and a part of the main body member 11 form the first connecting limb 1. One end of the first reinforcing plate 141 is located at the structural center 4. The first reinforcing plate 141 is directly connected to the main body member 11, which improves the strength of the main body member 11 and also takes into account the overall balance of the structure.

[0072] And one end of the first reinforcing plate 141 is located at the structural center 4. Such a layout helps to evenly disperse the external force to the entire device and reduce local stress concentration.

[0073] The second reinforcing plate 142 is connected to the main body member 11. One end of the second reinforcing plate 142 is located at the structural center 4 and is sandwiched between the first reinforcing plate 141 and the main body member 11. A part of the second reinforcing plate 142 is sandwiched between the first bending section 121 and the main body member 11. The second reinforcing plate 142, the first bending section 121 and a part of the main body member 11 form the second connecting limb 2.

[0074] With this setting, not only the strength of the structural center 4 area is enhanced by the second reinforcing plate 142, but also a stable triangular support structure is formed through the interaction of the three. In addition, a part of the second reinforcing plate 142 is sandwiched between the first bending section 121 and the main body member 11, which can also limit the deformation range of the first bending section 121 and improve the overall stability of the structure.

[0075] The second reinforcing plate 142, the first bending section 121 and a part of the main body member 11 jointly form the second connecting limb 2. This structure can not only bear the forces from multiple directions, but also realize the transmission in different directions through it, so as to optimize the force distribution of the entire device.

[0076] In some embodiments, in combination Figure 2 , there is a raised first ridge 1421 on the second reinforcing plate 142. The first ridge 1421 extends from the structural center 4 to the end of the second connecting limb 2. The first ridge 1421 is horizontally located between the edge of the main body member 11 far from the third connecting limb 3 and the edge of the first bending section 121 far from the third connecting limb 3.

[0077] With this setting, it is ensured that the first ridge 1421 does not interfere with the functions of other components while being able to play its reinforcement role.

[0078] At least part of a second energy absorption cavity is formed between the first ridge 1421 and the main body member 11. When an external force acts on the device, the second energy absorption cavity allows the first ridge 1421 and its surrounding structures to deform and collapse inward to a certain extent, so as to absorb and disperse the impact energy. This energy absorption mechanism effectively reduces the direct impact of the external force on the reinforcing structure 100 and improves the overall load-bearing capacity and stability.

[0079] In some embodiments, in combination with Figure 2 , on the second reinforcing plate 142, there are also provided raised second ridges 1422 and third ridges 1423. One end of the second ridge 1422 and the third ridge 1423 is connected to the first ridge 1421, and the other ends extend towards the ends of the first connecting limb 1 and the third connecting limb 3 respectively.

[0080] By providing the second ridge 1422 and the third ridge 1423 on the second reinforcing plate 142, the overall structural strength is further enhanced.

[0081] The second ridge 1422 is connected below the first reinforcing plate 141, and the third ridge 1423 is connected below the upper member 12. This not only enhances the connection stability between the three connecting limbs 10, but also enables the second reinforcing plate 142 to more effectively disperse the force throughout the structure, avoiding excessive concentration of stress at the center 4 of the structure.

[0082] On the first reinforcing plate 141, there is provided a raised fourth ridge 1411. The fourth ridge 1411 extends from the end of the first reinforcing plate 141 towards the center 4 of the structure, and the part of the fourth ridge 1411 located at the center 4 of the structure is connected below the upper member 12.

[0083] In combination with Figure 6 , through the fourth ridge 1411, not only can the external force be guided to the center 4 of the structure to facilitate the subsequent dispersion of the force. In combination with Figure 7 , when the fourth ridge 1411 extends to the center 4 of the structure, after the external force is transmitted to the center 4 of the structure, it does not simply terminate, but is dispersed to the second connecting limb 2 and the third connecting limb 3 through the main body member 11 and the middle channel overlapping member 13.

[0084] It is connected below the upper member 12. This connection method not only provides additional support for the upper member 12, but also enhances the connection strength between the upper member 12 and the first reinforcing plate 141. When bearing an external load, the upper member 12 can transmit part of the force to the first reinforcing plate 141 through the fourth ridge 1411, and then disperse it throughout the structure, effectively reducing the concentration of local stress and improving the load-bearing capacity and durability of the overall structure.

[0085] In combination with Figure 8 , a third energy absorption cavity is formed between the fourth ridge 1411 and the upper member 12. Through the third energy absorption cavity, not only the energy absorption capacity of the reinforcing structure 100 is enhanced, but also the force transmission path is optimized, providing a strong guarantee for the stable use of the reinforcing structure 100.

[0086] In some embodiments, such as Figure 3As shown, on the first connecting limb 1, above the first reinforcing plate 141, at the edge of the first reinforcing plate 141 away from the third connecting limb 3, and at the edge of the main body member 11 away from the third connecting limb 3, a first connecting portion 15 for connecting the front longitudinal beam 201 is formed.

[0087] The function of the first connecting portion 15 is to ensure the smooth transmission of external forces and optimize the overall force transmission effect of the frame structure 200. In particular, when the vehicle is subjected to a frontal or side impact, the front longitudinal beam 201 will bear the impact force first. At this time, the force is dispersed and transmitted to the reinforcing structure 100 through the first connecting portion 15, and then dispersed to the entire frame structure 200. It is through the transmission of the first connecting portion 15 that the energy absorption capacity of the frame structure 200 is improved, and accordingly the safety of the passenger compartment is protected.

[0088] In some embodiments, the first connecting portion 15 is used to connect the front longitudinal beam 201. This enables the force on the front longitudinal beam 201 to be reasonably transmitted, avoiding structural damage or deformation caused by single-point force or unsmooth force transmission paths.

[0089] Optionally, the first connecting portion 15 is connected to the front longitudinal beam 201 by welding or riveting. In some embodiments, the first connecting portion 15 is connected to the front longitudinal beam 201 by welding, and the first connecting portion 15 is a weld point. Since weld points have the advantages of high connection strength, good stability, and relatively low cost, they are very suitable for the high requirements for structural strength and durability in automobile manufacturing. Or, in some embodiments, the first connecting portion 15 is connected to the front longitudinal beam 201 by riveting, and the first connecting portion 15 is a rivet. Then, the deformation of the rivet is just used to generate a clamping force, thus achieving a firm connection between components. The advantages of riveting are its high connection strength, good corrosion resistance, and the ability to resist vibration and fatigue damage.

[0090] As Figure 3 shown, on the second connecting limb 2, at the edge of the first bending section 121 away from the third connecting limb 3, a second connecting portion 16 for connecting the front longitudinal beam 201 is formed.

[0091] Since the second connecting portion 16 is located at the edge of the first bending section 121, this position enables the impact force borne by the front longitudinal beam 201 to be smoothly transmitted to the second connecting limb 2 through the second connecting portion 16 during a vehicle impact, and further dispersed to the entire frame structure 200, thereby optimizing the force transmission path and improving the stability and safety of the whole vehicle.

[0092] To achieve a firm connection between the second connecting portion 16 and the front longitudinal beam 201, we can adopt various connection methods, such as welding connection, bolt connection, riveting, etc. Which connection method to choose specifically needs to be comprehensively evaluated according to actual application scenarios, costs and other factors.

[0093] As shown Figure 4 in the figure, on the second connecting limb 2, at the edges of the first bending section 121 and the main body member 11 away from the structural center 4, third connecting portions 17 for connecting the lower end of the A-pillar 202 and the front end of the sill beam 203 are formed.

[0094] The second connecting limb 2 realizes the connection between the A-pillar 202, the sill beam 203 and the second connecting limb 2 through the third connecting portions 17, thereby forming a force transmission path.

[0095] Specifically, if the front longitudinal beam 201 is subjected to an impact force from the front, this force can be quickly and stably transmitted to the A-pillar 202 and / or the sill beam 203 through the second connecting limb 2, and thus dispersed to the entire vehicle frame structure 200.

[0096] Conversely, when the A-pillar 202 or the sill beam 203 is subjected to an external force from the side, these forces can also smoothly pass through the third connecting portions 17 and be transmitted to the reinforcing structure 100, and then dispersed to the entire vehicle frame system. This two-way force transmission mechanism ensures the stability and reliability of the vehicle frame under complex loading conditions and improves the overall safety of the vehicle.

[0097] As shown Figure 5 in the figure, on the third connecting limb 3, at the edge of the second bending section 122 away from the structural center 4, a fourth connecting portion 18 for connecting the middle channel member 204 is formed.

[0098] The middle channel member 204 is a part of the vehicle frame structure 200, and it may play roles such as connecting the front longitudinal beam 201 and the rear longitudinal beam, transmitting lateral forces, and supporting the vehicle body floor. Therefore, the setting of the fourth connecting portion 18 is crucial for ensuring the firm connection between the middle channel member 204 and the third connecting limb 3.

[0099] The fourth connecting portion 18 is located at the edge of the second bending section 122, and such a layout is beneficial to effectively transmit the force borne by the middle channel member 204 to the third connecting limb 3. Or, the force borne by the reinforcing structure 100 is effectively transmitted to the middle channel member 204 through the connection of the fourth connecting portion 18, thereby improving the anti-deformation ability of the vehicle frame structure 200.

[0100] The reinforcing structure 100 according to some embodiments of the present invention is formed by laminating multiple layers of plates. The structural strength and compactness of the forced downshift device are improved by laminating multiple layers of plates.

[0101] Flanges 19 for welding are provided at the edges of the three connecting limbs 10. The stability of the reinforcing structure 100 in the vehicle frame structure 200 is further enhanced by providing the flanges 19.

[0102] In summary, in the specific connection layout of the vehicle frame, the front longitudinal beam 201, as the main component to bear the frontal collision impact, is connected to the first connecting limb 1 of the reinforcement structure 100 at its rear end. This connection method ensures that when the front longitudinal beam 201 is impacted, the force can be effectively transmitted to the reinforcement structure 100 and then dispersed to the entire vehicle frame, improving the collision safety of the whole vehicle.

[0103] At the same time, the A-pillar 202, as an important structure to support the side of the vehicle body, is connected to the front end of the sill beam 203 and the second connecting limb 2 of the reinforcement structure 100 together at its lower end. This design not only enhances the connection strength between the A-pillar 202 and the sill beam 203, but also tightly connects the two with other parts of the vehicle frame through the reinforcement structure 100, improving the stability of the vehicle under extreme working conditions.

[0104] In addition, the center tunnel member 204, as a key component to connect the front and rear longitudinal beams, transmit lateral forces and support the vehicle body floor, is directly connected to the third connecting limb 3 of the reinforcement structure 100. This layout optimizes the force transmission path of the center tunnel member 204, improves its working efficiency and stability, and also enhances the overall rigidity of the vehicle frame.

[0105] In some alternative embodiments, when the upper member 12 extends to the rear cross beam of the front seat, the force transmitted from the front longitudinal beam 201 can also be dispersed to the rear cross beam of the front seat through the upper member 12, forming further dispersion.

[0106] In some embodiments, in combination with Figure 9 , the vehicle frame structure 200 further includes: a battery bracket 205.

[0107] The lateral sides of the battery bracket 205 are connected to the sill beam 203 and the center tunnel member 204. This layout enables the battery pack 300 to be stably fixed at a predetermined position during vehicle driving, reducing the risk of displacement caused by vibration or impact. At the same time, the sill beam 203 and the center tunnel member 204, as important load-bearing components in the vehicle frame structure 200, their high strength and high rigidity provide a solid support for the battery bracket 205, further ensuring the safety of the battery pack 300.

[0108] In addition, the front end of the battery bracket 205 is closely connected to the reinforcement structure 100. This design enables the external force received by the battery pack 300 in the event of an emergency such as a vehicle collision to be quickly transmitted to the reinforcement structure 100 through the battery bracket 205 and further dispersed to the entire vehicle frame system. This multi-path force transmission mechanism greatly improves the survivability of the battery pack 300 during a collision and reduces the safety risk caused by battery damage.

[0109] By introducing a battery bracket 205 into the vehicle frame structure 200 and connecting it to the sill beam 203, the middle channel member 204, and the reinforcement structure 100 itself, a more comprehensive protection solution for the battery pack 300 is provided for the vehicle frame structure 200 of the range-extended vehicle model.

[0110] A vehicle according to an embodiment of the second aspect of the present invention includes the above vehicle frame structure 200 in this application. Through this vehicle frame structure 200, the safety and stability of the vehicle can be improved.

[0111] The following refers to Figure 2 - Figure 8 The reinforcement structure 100 according to the embodiment of the present invention will be described in detail with a specific embodiment. It should be understood that the following description is only an exemplary illustration and not a specific limitation of the invention.

[0112] Refer to Figure 2 , Figures 6 - 8 , the reinforcement structure 100 includes: three connecting limbs 10. The three connecting limbs 10 are respectively a first connecting limb 1, a second connecting limb 2, and a third connecting limb 3.

[0113] Refer to Figure 2 , Figures 6 - 8 , the three connecting limbs 10 are radially distributed, and one end of the three connecting limbs 10 is connected to form a structure center 4.

[0114] The first connecting limb 1 is connected to the front longitudinal beam 201. The second connecting limb 2 is connected to the lower end of the A-pillar 202 and the front end of the sill beam 203. The third connecting limb 3 is connected to the middle channel member 204.

[0115] Refer to Figure 2 , the reinforcement structure 100 further includes: a main body member 11, an upper member 12, a middle channel overlapping member 13, a reinforcing member 14, a first connecting portion 15, a second connecting portion 16, a third connecting portion 17, a fourth connecting portion 18, and a flange 19.

[0116] Refer to Figures 2 - 5 , the upper member 12 is an integral part, and the upper member 12 includes: a first bent section 121 and a second bent section 122.

[0117] Refer to Figure 3 , the first bent section 121 is connected to the main body member 11.

[0118] A part of the main body member 11 is located on the first connecting limb 1, the first bent section 121, another part of the main body member 11 is located on the second connecting limb 2, and the second bent section 122 is located on the third connecting limb 3.

[0119] The middle channel lap joint 13 is connected to the bottom of the second bent section 122. The edge of the middle channel lap joint 13 is connected to the edge of the main body part 11. A first energy absorption cavity is formed between the middle channel lap joint 13 and the second bent section 122.

[0120] Referring to Figures 3 - 5 , the reinforcing member 14 is arranged on the main body part 11. A part of the reinforcing member 14 is located between the main body part 11 and the upper part 12. A second energy absorption cavity is formed between the main body part 11 and the reinforcing member 14, and a third energy absorption cavity is formed between the reinforcing member 14 and the upper part 12.

[0121] The reinforcing member 14 includes: a first reinforcing plate 141 and a second reinforcing plate 142.

[0122] The first reinforcing plate 141 is connected to the main body part 11. The first reinforcing plate 141 and a part of the main body part 11 form a first connecting limb 1. One end of the first reinforcing plate 141 is located at the structural center 4.

[0123] The second reinforcing plate 142 is connected to the main body part 11. One end of the second reinforcing plate 142 is located at the structural center 4 and is clamped between the first reinforcing plate 141 and the main body part 11. A part of the second reinforcing plate 142 is clamped between the first bent section 121 and the main body part 11. The second reinforcing plate 142, the first bent section 121 and another part of the main body part 11 form a second connecting limb 2.

[0124] Referring to Figure 2 , the second reinforcing plate 142 includes: a first ridge 1421, a second ridge 1422 and a third ridge 1423.

[0125] The first ridge 1421 is convex. The first ridge 1421 extends from the structural center 4 to the end of the second connecting limb 2. The first ridge 1421 is located horizontally between the edge of the main body part 11 far from the third connecting limb 3 and the edge of the first bent section 121 far from the third connecting limb 3.

[0126] One end of the second ridge 1422 and the third ridge 1423 is connected to the first ridge 1421, and the other ends extend respectively towards the ends of the first connecting limb 1 and the third connecting limb 3.

[0127] The second ridge 1422 is connected below the first reinforcing plate 141, and the third ridge 1423 is connected below the upper part 12.

[0128] Referring to Figures 3 - 8 , the first reinforcing plate 141 includes a convex fourth ridge 1411. The fourth ridge 1411 extends along the end of the first reinforcing plate 141 towards the structural center 4. The part of the fourth ridge 1411 located at the structural center 4 is connected below the upper part 12.

[0129] Referring toFigure 3 On the first connecting limb 1, above the first reinforcing plate 141, at the edge of the first reinforcing plate 141 away from the third connecting limb 3, and at the edge of the main body member 11 away from the third connecting limb 3, a first connecting portion 15 for connecting the front longitudinal beam 201 is formed.

[0130] Refer to Figure 3 On the second connecting limb 2, at the edge of the first bent segment 121 away from the third connecting limb 3, a second connecting portion 16 for connecting the front longitudinal beam 201 is formed.

[0131] Refer to Figure 4 On the second connecting limb 2, at the first bent segment 121 and at the edge of the main body member 11 away from the structural center 4, a third connecting portion 17 for connecting the lower end of the A-pillar 202 and the front end of the sill beam 203 is formed.

[0132] Refer to Figure 5 On the third connecting limb 3, at the edge of the second bent segment 122 away from the structural center 4, a fourth connecting portion 18 for connecting the middle channel member 204 is formed.

[0133] Refer to Figures 2 - 5 On the edges of the three connecting limbs 10, flanges 19 for welding are provided.

[0134] Other components of the reinforcing structure 100 according to the embodiments of the present invention, such as the vehicle frame structure 200 and the vehicle, etc., and the operations are known to those of ordinary skill in the art and will not be described in detail here.

[0135] In the description of this specification, the descriptions referring to the terms "embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0136] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A frame structure, characterized in that, The frame structure includes: a front longitudinal beam, a sill beam, an A-pillar, a center tunnel member, and a reinforcing structure; The reinforcing structure includes three connecting limbs. The three connecting limbs are radially distributed, and one end of the three connecting limbs is connected to form a structural center. One of the connecting limbs is a first connecting limb connecting the rear end of the front longitudinal beam, another connecting limb is a second connecting limb connecting the lower end of the A-pillar and the front end of the sill beam, and the other connecting limb is a third connecting limb connecting the center tunnel member.

2. The frame structure according to claim 1, characterized in that, The reinforcing structure includes: A main body member; An upper member, the upper member is an integral part, and the upper member includes a first bent section and a second bent section. The first bent section is connected to the main body member; Part of the main body member is located in the first connecting limb, the first bent section and part of the main body member are located in the second connecting limb, and the second bent section is located in the third connecting limb.

3. The frame structure according to claim 2, characterized in that, It further includes: A center tunnel overlapping member, the center tunnel overlapping member is connected to the bottom of the second bent section. The edge of the center tunnel overlapping member is connected to the edge of the main body member, and a first energy absorption cavity is formed between the center tunnel overlapping member and the second bent section.

4. The frame structure according to claim 2, wherein It further includes: A reinforcing member, the reinforcing member is provided on the main body member. A part of the reinforcing member is located between the main body member and the upper member. A second energy absorption cavity is formed between the main body member and the reinforcing member, and a third energy absorption cavity is formed between the reinforcing member and the upper member.

5. The frame structure according to claim 4, characterized in that The reinforcing member includes: A first reinforcing plate, the first reinforcing plate is connected to the main body member. The first reinforcing plate and part of the main body member form the first connecting limb, and one end of the first reinforcing plate is located at the structural center; A second reinforcing plate, the second reinforcing plate is connected to the main body member. One end of the second reinforcing plate is located at the structural center and is sandwiched between the first reinforcing plate and the main body member. A part of the second reinforcing plate is sandwiched between the first bent section and the main body member. The second reinforcing plate, the first bent section and part of the main body member form the second connecting limb.

6. The frame structure according to claim 5, characterized in that, A first ridge protruding upward is provided on the second reinforcing plate. The first ridge extends from the structural center to the end of the second connecting limb; The first ridge is horizontally located between the edge of the main body member far from the third connecting limb and the edge of the first bent section far from the third connecting limb.

7. The frame structure according to claim 6, characterized in that, A second ridge and a third ridge protruding are further provided on the second reinforcing plate. One end of the second ridge and the third ridge is connected to the first ridge, and the other end extends respectively toward the ends of the first connecting limb and the third connecting limb; The second ridge is connected below the first reinforcing plate, and the third ridge is connected below the upper member; A fourth ridge protruding is provided on the first reinforcing plate. The fourth ridge extends from the end of the first reinforcing plate toward the structural center. The part of the fourth ridge located at the structural center is connected below the upper member.

8. The frame structure according to claim 5, characterized in that, On the first connecting limb, above the first reinforcing plate, at the edge of the first reinforcing plate away from the third connection, and at the edge of the main body member away from the third connecting limb, a first connecting portion for connecting the front longitudinal beam is formed; On the second connecting limb, at the edge of the first bent section away from the third connecting limb, a second connecting portion for connecting the front longitudinal beam is formed; on the second connecting limb, at the first bent section and at the edge of the main body member away from the structural center, a third connecting portion for connecting the lower end of the A-pillar and the front end of the sill beam is formed; On the third connecting limb, at the edge of the second bent section away from the structural center, a fourth connecting portion for connecting the middle channel member is formed.

9. The frame structure according to any one of claims 1-8, characterized in that, The reinforcing structure is formed by laminating multiple layers of plates, and flanges for welding are provided at the edges of the three connecting limbs.

10. The frame structure according to any one of claims 1-8, characterized in that, Further comprising: A battery bracket, the lateral sides of which are respectively connected to the sill beam and the middle channel member; The front end of the battery bracket is connected to the reinforcing structure.

11. A vehicle, characterized in that, Including the vehicle frame structure according to any one of claims 1-10.

Images