Vehicle body anti-overturning reinforced connection structure and vehicle
By setting bending-resistant reinforcing brackets and transverse extension beam grooves on the T-shaped connection structure of the vehicle body to form a local hollow cavity, the problem of insufficient bending moment resistance of the vehicle body connection structure is solved, thereby improving stiffness and bending performance, while reducing cost and weight.
Patent Information
- Application Number
- CN202423179876.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The existing T-shaped connection area of the body connection structure has insufficient bending moment resistance, which affects the overall stiffness and bending performance of the body. Existing reinforcement solutions are costly and may affect production cycle time.
A bending-strengthening bracket and a transverse extension beam groove are set on the T-shaped connection structure of the vehicle body to form a local hollow cavity, thereby improving rigidity and bending moment resistance.
It effectively improves the bending resistance of the T-shaped area, avoids structural instability, reduces weight increase, reduces costs, and simplifies process complexity.
Smart Images
Figure CN223750955U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle technical field, provide a kind of vehicle body anti overturning reinforcing connection structure and vehicle specifically. BACKGROUND
[0002] In the automobile cage body constructed by high-strength steel material, the "T" type connection area in the vehicle body connection structure has been the design weakness of the automobile cage body. The insufficient bending moment of the "T" type connection area will directly affect the overall stiffness and bending resistance of the vehicle body, and it needs to be compensated by very inefficient solutions in other places. For example, the B column in the vehicle body stand plays a crucial role, but due to the complex structure of the B column, the number of overlapping levels is large, and the Y-direction cavity space is limited, so the "T" type area connecting the upper end of the B column and the upper side beam is weak. Some OEMs spare no effort to use bolts to strengthen the "T" type overlapping area in order to improve its stiffness, which is costly and affects production rhythm. How to improve the bending resistance of the "T" type overlapping area of the vehicle body connection structure at low cost and low weight has been a difficult problem for vehicle body structure research and development of various OEMs.
[0003] Correspondingly, there is a need for a new vehicle body anti overturning reinforcing connection structure to solve the problem of insufficient bending moment of the T type connection area of the existing vehicle body connection structure. SUMMARY
[0004] The utility model aims at solving the above technical problem, i.e. solving the problem of insufficient bending moment of the T type connection area of the existing vehicle body connection structure.
[0005] In the first aspect, the utility model provides a vehicle body anti overturning reinforcing connection structure, which comprises a longitudinal extension beam, a transverse extension beam and a reinforcing bracket. One end of the longitudinal extension beam is connected with the transverse extension beam, and the transverse extension beam is connected with a groove. The upper side of the reinforcing bracket is connected with the side wall of the groove, and the lower side of the reinforcing bracket is connected with the longitudinal extension beam, so as to form a local hollow cavity between the reinforcing bracket and the groove, thereby improving the bending moment performance of the connection area between the longitudinal extension beam and the transverse extension beam.
[0006] In the technical scheme, the anti-bending reinforcing bracket and the transversely extending beam groove form a local hollow cavity, so that the rigidity and the bending moment performance of the T-shaped area are improved.
[0007] In the optional technical scheme of the vehicle body anti-overturning reinforcing connection structure, the reinforcing bracket is provided with a reinforcing groove structure.
[0008] In the technical scheme, the reinforcing groove structure further optimizes the bending moment performance of the reinforcing bracket.
[0009] In the optional technical scheme of the vehicle body anti-overturning reinforcing connection structure, the longitudinally extending beam and the transversely extending beam are integrally formed.
[0010] In the technical scheme, the longitudinally extending beam and the transversely extending beam are integrally formed, so that the process complexity is reduced and the strength is improved.
[0011] In the optional technical scheme of the vehicle body anti-overturning reinforcing connection structure, the upper side of the reinforcing bracket is provided with a bent first connecting portion, and the first connecting portion is connected with the side wall of the groove.
[0012] In the technical scheme, the reinforcing bracket and the transversely extending beam are connected.
[0013] In the optional technical scheme of the vehicle body anti-overturning reinforcing connection structure, the first connecting portion is provided with a plurality of notches, and the notches separate the first connecting portion into a plurality of connecting sub-portions, and each connecting sub-portion is connected with the side wall of the groove.
[0014] In the technical scheme, the first connecting portion is formed in the form of a plurality of connecting sub-portions, so that when an external force is applied, the stress can be uniformly dispersed to a plurality of small units which are relatively independent, and compared with a single integral structure, the external force borne by each small unit is significantly reduced, so that the carrying capacity of the overall structure is effectively improved, and the structural stability and reliability of the connecting portion of the transversely extending beam and the reinforcing bracket under complex stress working conditions are enhanced.
[0015] In the optional technical scheme of the vehicle body anti-rollover reinforcing connection structure, the lower side of the reinforcing bracket is formed with a bent second connecting portion, and the second connecting portion is connected with the longitudinally extending beam.
[0016] In the case of adopting the above technical scheme, the reinforcing bracket and the longitudinally extending beam are connected conveniently.
[0017] In the optional technical scheme of the vehicle body anti-rollover reinforcing connection structure, the left and right sides of the reinforcing bracket are respectively formed with flanges.
[0018] In the case of adopting the above technical scheme, in actual working conditions, when the reinforcing bracket bears a large amount of pressure and has a large deformation, the left and right sides are prone to tearing, thereby causing the bending moment to lose effect. By arranging the flanges on the left and right sides of the reinforcing bracket, the stability of the reinforcing bracket is improved significantly, and the risk of tearing in the middle of the reinforcing bracket due to a large deformation after being pressed is reduced.
[0019] In the optional technical scheme of the vehicle body anti-rollover reinforcing connection structure, the longitudinally extending beam is a vehicle body pillar.
[0020] In the case of adopting the above technical scheme, the rigidity and bending resistance of the T-shaped area at the top end of the vehicle body pillar are improved.
[0021] In the optional technical scheme of the vehicle body anti-rollover reinforcing connection structure, the vehicle body pillar is a B pillar of a vehicle body, and the transversely extending beam is an upper side beam of the vehicle body.
[0022] In the case of adopting the above technical scheme, the rigidity and bending resistance of the T-shaped area at the top end of the B pillar are improved effectively.
[0023] The utility model also provides a vehicle, the vehicle includes the vehicle body anti-rollover reinforcing connection structure of any one of the above technical scheme.
[0024] Those skilled in the art can understand that the vehicle body anti-rollover reinforcing connection structure comprises a longitudinally extending beam, a reinforcing bracket and a transversely extending beam, one end of the longitudinally extending beam is connected with the transversely extending beam, the transversely extending beam is formed with a groove, the upper side of the reinforcing bracket is connected with one side wall of the groove, the lower side of the reinforcing bracket is connected with the longitudinally extending beam, and a local hollow cavity is formed between the reinforcing bracket and the groove, so that the bending moment performance of the connection region of the longitudinally extending beam and the transversely extending beam is improved.
[0025] In the adoption of the above technical scheme, the vehicle body anti-overturning reinforcing connection structure sets the bending-resistant reinforcing support on the vehicle body T-shaped connection structure, and the reinforcing support and the transversely extending beam groove construct a local hollow cavity, thereby improving the rigidity and bending moment performance of the T-shaped area. BRIEF DESCRIPTION OF DRAWINGS
[0026] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:
[0027] Figure 1 is a perspective view of the vehicle body anti-overturning reinforcing connection structure of the present application;
[0028] Figure 2 is Figure 1 is an enlarged view of I in Fig.
[0029] Figure 3 is a right side view of the vehicle body anti-overturning reinforcing connection structure of the present application;
[0030] Figure 4 is a perspective view of the reinforcing support of the present application;
[0031] Figure 5 is Figure 4 is a sectional view of A-A in Fig.
[0032] Figure 6 is a right side view of the reinforcing support of the present application.
[0033] LIST OF REFERENCE NUMERALS
[0034] 1. Longitudinally extending beam
[0035] 2. Transversely extending beam; 21. Groove
[0036] 3. Reinforcing support; 31. Reinforcing groove structure; 32. First connecting portion; 321. Notch; 322. Connecting sub-portion; 33. Second connecting portion; 34. Flange
[0037] 4. Hollow cavity DETAILED DESCRIPTION
[0038] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. Those skilled in the art can make adjustments according to the needs in order to adapt to specific application occasions. For example, the vehicle body anti-overturning reinforcing connection structure of the present application can be applied to new energy vehicles, and can also be applied to fuel vehicles, and even can be applied to engineering vehicles, etc.
[0039] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0040] The longitudinal extending beam 1 and the transverse extending beam 2 each have a specific extending direction, although the extending direction of the longitudinal extending beam 1 is defined as "longitudinal" and the extending direction of the transverse extending beam 2 is defined as "transverse", it should be clear that "longitudinal" and "transverse" here are not defined according to their absolute extending direction in the overall layout of the actual vehicle body, but are determined by the relative direction concept based on the positional relationship between the longitudinal extending beam 1 and the transverse extending beam 2.
[0041] In addition, it should also be noted that in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0042] In order to solve the problem of insufficient bending moment resistance in the T-shaped connection area of the existing vehicle body connection structure, the present application provides a vehicle body anti-overturning reinforcing connection structure.
[0043] Referring to Figure 1 The vehicle body anti-overturning reinforcing connection structure of the present application comprises a longitudinal extending beam 1, a transverse extending beam 2 and a reinforcing bracket 3. Referring to Figure 2 and Figure 3, one end of the longitudinal extending beam 1 and the transverse extending beam 2 are connected, the transverse extending beam 2 is formed with a groove 21 along the length direction, the upper side of the reinforcing support 3 and one side wall of the groove 21 are connected, the lower side of the reinforcing support 3 is connected on the longitudinal extending beam 1, and the local hollow cavity 4 is formed between the reinforcing support 3 and the groove 21. Under the action of the local hollow cavity 4, the rigidity and the bending moment performance of the T-shaped region are improved, so that the T-shaped connection region of the longitudinal extending beam 1 and the transverse extending beam 2 is prevented from overturning to the outside of the vehicle body.
[0044] The advantage of the above arrangement is that the vehicle body anti-overturning reinforcing connection structure of the utility model sets the torsion resisting reinforcing support 3 in the T-shaped connection region, so that the local hollow cavity 4 is constructed between the reinforcing support 3 and the beam groove 21, thereby improving the rigidity and the bending moment performance of the T-shaped region, resisting the crushing risk when the transverse extending beam 2 is compressed, and effectively avoiding the structural instability condition of the connection region of the longitudinal extending beam 1 and the transverse extending beam 2 from overturning to the outside of the vehicle body.
[0045] The person skilled in the art can set the specific structure of the longitudinal extending beam 1 and the transverse extending beam 2 and the corresponding action according to actual design requirements, functional requirements and the layout of the overall vehicle body structure and the like, and all fall within the protection scope of the utility model.
[0046] As a possible implementation, the longitudinal extending beam 1 is a vehicle body pillar. The vehicle body pillar covers various types of A-pillar, B-pillar, C-pillar, D-pillar and the like on the vehicle body. In the actual application scenario, the person skilled in the art can set the vehicle body pillar according to actual needs. For example, if the vehicle body pillar is set as the A-pillar of the vehicle body, the transverse extending beam 2 can be selected as the front roof cross beam, if the vehicle body pillar is set as the B-pillar of the vehicle body, the transverse extending beam 2 can be the upper side beam at the top of the vehicle body. For example, if the vehicle body pillar is set as the C-pillar of the vehicle body, the transverse extending beam 2 can be the rear roof cross beam, if the vehicle body pillar is the D-pillar of the vehicle body, the transverse extending beam 2 can be the rear roof cross beam or the roof side wall reinforcing beam and the like. The person skilled in the art can set the vehicle body pillar and the cross beam connected therewith according to actual needs, and all fall within the protection scope of the utility model.
[0047] In a possible implementation, the vehicle body pillar is the B-pillar of the vehicle body, and the transverse extending beam 2 is the upper side beam. The upper side beam is mainly located at the two side edge positions of the top of the vehicle body. The upper side beam extends along the length direction of the vehicle body from the front part to the rear part, is closely connected with the roof, and constitutes the side frame of the roof.
[0048] Specifically, the B-pillar further comprises a B-pillar outer panel and a B-pillar inner panel (not shown in the figure) connected together. The roof rail comprises a roof rail outer panel and a roof rail inner panel (not shown in the figure) connected together. The reinforcement bracket 3 is located between the roof rail outer panel and the roof rail inner panel in the vehicle body width direction.
[0049] With reference to Figure 2 , Figure 3 and Figure 4 , the roof rail outer panel is formed with a groove 21 in the vehicle body length direction, the upper side of the reinforcement bracket 3 is formed with a bent first connecting portion 32, three notches 321 are formed on the first connecting portion 32, and the first connecting portion 32 is divided into three connecting sub-portions 322 by the notches 321, each of which is connected to the side wall of the groove 21 by steel spot welding.
[0050] The first connecting portion 32 is configured in the form of multiple connecting sub-portions 322, so that when subjected to external force, the stress can be uniformly dispersed to relatively independent multiple small units, and compared with a single integral structure, the external force borne by each small unit is significantly reduced, thereby effectively improving the carrying capacity of the overall structure and enhancing the structural stability and reliability of the connecting portion between the roof rail outer panel and the reinforcement bracket 3 under complex stress working conditions. Of course, those skilled in the art can also set different shapes for the first connecting portion 32 according to actual needs, such as a complete plate, etc., and all fall within the protection scope of the present application.
[0051] Further, with reference to Figure 4 , the lower side of the reinforcement bracket 3 is formed with a bent second connecting portion 33, and the second connecting portion 33 is connected to the B-pillar outer panel by steel spot welding. The lower side and the left and right side edges of the second connecting portion 33 are inwardly offset by a certain distance and are connected to the B-pillar outer panel by steel spot welding, so that the closed scheme is adopted between the lower part of the reinforcement bracket 3 and the B-pillar outer panel, the lap area of the welding points is increased, and thus the connection strength is increased. Further, the width between the left and right sides of the second connecting portion 33 gradually decreases, which design makes the stress gradually transition when subjected to external force, effectively avoiding the problem of stress concentration. Not only can the fatigue resistance of the connecting structure be effectively improved, but also the weight of the bracket can be reduced to some extent, and the connection with the B-pillar outer panel is more convenient in actual assembly.
[0052] Among them, the left and right sides of the reinforcement bracket 3 are the length direction of the vehicle body, and the upper and lower sides of the reinforcement bracket 3 are the height direction of the vehicle body.
[0053] Further, with reference to Figure 4The reinforcing bracket 3 is formed with a reinforcing groove structure 31. The reinforcing groove structure 31 further optimizes the bending moment resistance of the reinforcing bracket 3. With the reinforcing groove structure 31, the bending moment resistance of the upper end of the vehicle body pillar can be improved at a lower cost, achieving lightweight and economy. It provides an efficient and practical solution for optimizing the vehicle body anti-overturning reinforcing connection structure. When the top of the vehicle is under pressure, the B-pillar outer plate and the upper rail outer plate are effectively prevented from overturning and crushing to the outside of the vehicle body, solving the problem of difficult efficient improvement of the Z-direction (vehicle height direction) stiffness of this area. The structure is small and flexible, and the compression resistance of the vehicle body B-pillar is significantly improved. The bending moment structure of the reinforcing bracket 3 is simple, effectively reducing the weight and cost of the vehicle.
[0054] Further, with reference to Figure 5 The reinforcing bracket 3 is formed with two long circular reinforcing groove structures 31, so that the cross section intersecting the stress direction is similar to a W shape. By adopting the design strategy of the W-shaped cross section, the available space in the T-shaped area cavity can be fully utilized, simplifying the process and ensuring the bending performance of the area. However, it should be noted that the specific shape of the reinforcing groove structure 31 is not limited in any way, and it can also be rectangular or circular, etc. The skilled person can set it according to actual needs, and it falls within the scope of protection of the present application.
[0055] Further, with reference to Figure 4 The reinforcing bracket 3 is formed with two long circular reinforcing groove structures 31, so that the cross section intersecting the stress direction is similar to a W shape. By adopting the design strategy of the W-shaped cross section, the available space in the T-shaped area cavity can be fully utilized, simplifying the process and ensuring the bending performance of the area. However, it should be noted that the specific shape of the reinforcing groove structure 31 is not limited in any way, and it can also be rectangular or circular, etc. The skilled person can set it according to actual needs, and it falls within the scope of protection of the present application.
[0056] In order to effectively improve the stiffness of the T-shaped area at the upper end of the vehicle body B-pillar, the B-pillar outer plate and the upper rail outer plate are integrally formed. At the same time, the reinforcing bracket 3 is also integrally formed to reduce the complexity of the process, provide strength, and reduce cost. The specific type of the integrally formed process can be set by the skilled person according to the actual situation, for example, the B-pillar outer plate and the upper rail outer plate can be integrally formed by stamping process, or other processes such as die casting or 3D printing can be used. Similarly, the reinforcing bracket 3 can also be made by using the above-mentioned various integrally formed processes, and no matter which integrally formed process is used to build the T-shaped area connection structure at the upper end of the vehicle body pillar, it falls within the scope of protection of the present application.
[0057] However, it should be noted that although the connection structure of the B-pillar and the roof rail in the embodiment is described by connecting the B-pillar outer plate and the roof rail outer plate by the reinforcing bracket 3, the connection object of the reinforcing bracket 3 can be adjusted according to actual needs by those skilled in the art, such as the reinforcing bracket 3 can also be connected with the B-pillar inner plate, the roof rail inner plate, and various change forms, and no matter how the connection object of the reinforcing bracket 3 is adjusted, it falls within the protection scope of the utility model.
[0058] In summary, the body anti-overturning reinforcing connection structure of the utility model realizes the significant improvement of the stiffness and the bending moment capacity of the T-shaped connection area of the vehicle body by setting the reinforcing bracket 3. In the actual vehicle operation process, the structure can effectively resist the distortion deformation generated by various complex working conditions, greatly reduces the possibility of the T-shaped area of the vehicle body collapsing and overturning to the outside of the vehicle body when suffering the top collision impact force, so as to ensure the safety of vehicle driving.
[0059] As described in the first paragraph of this section, the above-mentioned embodiments are only used to illustrate the principle of the utility model, and are not intended to limit the protection scope of the utility model, and those skilled in the art can adjust the above-mentioned structure without deviating from the principle of the utility model, so that the utility model can be applied to more specific application scenarios.
[0060] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principle of the utility model, those skilled in the art can make equivalent changes or replacements to the related technical features, and the technical scheme after the changes or replacements will fall within the protection scope of the utility model.
Claims
1. A vehicle body anti-rollover reinforced connection structure, characterized in that, The vehicle body anti-overturning reinforcing connecting structure comprises a longitudinal extending beam (1), a transverse extending beam (2) and a reinforcing support (3), one end of the longitudinal extending beam (1) is connected with the transverse extending beam (2), and a groove (21) is formed on the upper end of the transverse extending beam (2); the upper side of the reinforcing support (3) is connected with the side wall of the groove (21), and the lower side of the reinforcing support (3) is connected on the longitudinal extending beam (1), so that a local hollow cavity (4) is formed between the reinforcing support (3) and the groove (21), thereby improving the bending moment resistance of the connecting area of the longitudinal extending beam (1) and the transverse extending beam (2).
2. The roll-over resistant reinforcement connection structure of claim 1, wherein A reinforcing groove structure (31) is formed on the reinforcing support (3).
3. The roll-over resistant reinforcement connection structure of claim 2, wherein The longitudinal extending beam (1) and the transverse extending beam (2) are integrally formed.
4. The roll-over resistant reinforcement connection structure of claim 1, wherein A bent first connecting part (32) is formed on the upper side of the reinforcing support (3), and the first connecting part (32) is connected with the side wall of the groove (21).
5. The roll-over resistant reinforcement connection structure of claim 4, wherein A plurality of notches (321) are formed on the first connecting part (32), the notches (321) separate the first connecting part (32) into a plurality of connecting parts (322), and each connecting part (322) is connected with the side wall of the groove (21).
6. The roll-over resistant reinforcement connection structure of claim 1, wherein A bent second connecting part (33) is formed on the lower side of the reinforcing support (3), and the second connecting part (33) is connected with the longitudinal extending beam (1).
7. The roll-over resistant reinforcement connection structure of claim 1, wherein Flanges (34) are respectively formed on the left and right sides of the reinforcing support (3).
8. The roll-over resistant reinforcement connection structure of claim 1, wherein The longitudinal extending beam (1) is a vehicle body pillar.
9. The roll-over resistant reinforcement connection structure of claim 8, wherein The vehicle body pillar is a vehicle body B pillar, and the transverse extending beam (2) is a vehicle body upper side beam.
10. A vehicle characterized by comprising: The vehicle comprises the vehicle body anti-overturning reinforcing connecting structure according to any one of claims 1-9.