A reinforced beam, a vehicle body pillar assembly, and a vehicle

Abstract

The embodiment of the application provides a reinforcing beam, a vehicle body pillar assembly and a vehicle, and relates to the technical field of vehicles. The reinforcing beam is used for being installed in a vehicle body pillar. The vehicle body pillar comprises an inner plate and an outer plate. The reinforcing beam has a buffer cavity. The reinforcing beam further has a first connecting position, a second connecting position and a third connecting position. The first connecting position, the second connecting position and the third connecting position are arranged in a triangle. The first connecting position and the third connecting position are both used for being connected with the outer plate, and the second connecting position is used for being connected with the inner plate. When the reinforcing beam is installed in the vehicle body pillar, the anti-collision performance of the vehicle body pillar can be improved through the double effects of the triangular connecting structure and the energy absorption of the buffer cavity.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a reinforcing beam, a body pillar assembly, and a vehicle. Background Technology

[0002] In the automotive body structure, the body pillars are longitudinal support components that connect the roof and the bottom of the body. Based on their location on the side of the body, they are mainly divided into A-pillars, B-pillars, and C-pillars. Some MPVs or SUVs, due to their longer body structure, will also have a D-pillar.

[0003] The B-pillar, or central pillar, is a longitudinal pillar located between the front and rear seats of the driver's cabin, between the front and rear doors on both sides. It connects upwards to the roof beam and extends downwards to the chassis frame at the bottom of the vehicle body.

[0004] In related technologies, the B-pillar has low structural strength, making occupants more susceptible to injury during a vehicle collision. Utility Model Content

[0005] This application provides a reinforced beam, a body pillar assembly, and a vehicle to address the problem in related technologies where the B-pillar has low structural strength, making occupants susceptible to injury during a vehicle collision.

[0006] In a first aspect, embodiments of this application provide a reinforcing beam for installation on a vehicle body pillar, the vehicle body pillar comprising an inner panel and an outer panel;

[0007] The reinforcing beam has a buffer cavity;

[0008] The reinforcing beam also has a first connecting position, a second connecting position, and a third connecting position, which are arranged in a triangular pattern. The first connecting position and the third connecting position are both used to connect with the outer plate, and the second connecting position is used to connect with the inner plate.

[0009] When the reinforcing beam is installed inside the vehicle body pillar, the collision resistance of the pillar can be improved through the dual effects of the triangular connection structure and the energy absorption of the buffer cavity: On the one hand, the first and third connection points form two-point support on the outer panel, and the second connection point forms a single-point support on the inner panel. These three connection points constitute a triangular force-bearing system. Relying on the geometric stability of the triangle, it can effectively disperse the lateral load during the collision (such as the impact force during a side collision), improve the collision resistance of the vehicle body pillar, and reduce the risk of bending and tearing of the vehicle body pillar due to insufficient structural load-bearing capacity; on the other hand, the buffer cavity can absorb the collision energy through its own compression deformation and wrinkling deformation during the collision, prolong the energy transfer path and time, reduce the intensity of the collision impact force transferred to the passenger compartment, and further alleviate the impact load on the passenger compartment.

[0010] In some possible implementations, the first connection position and the third connection position are spaced apart along a first direction; along a second direction perpendicular to the first direction, the projection of the second connection position on the outer plate is located between the first connection position and the third connection position.

[0011] In some possible implementations, the first connection position and the third connection position are spaced apart along a first direction; the reinforcing beam also has a fourth connection position for connecting with the outer plate, and along the first direction, the fourth connection position is located between the first connection position and the third connection position.

[0012] In some possible implementations, the reinforcing beam includes:

[0013] The first reinforcing member includes a main body, a first flange, and a second flange. Along a first direction, the first flange and the second flange are respectively connected to both sides of the main body, and the main body has a second connecting position.

[0014] The second reinforcing member is connected to the first flange and the second flange, and together with the main body, the first flange and the second flange, forms the buffer cavity; along the second direction, the area of ​​the second reinforcing member opposite to the first flange has the first connection position, and the area of ​​the second reinforcing member opposite to the second flange has the third connection position.

[0015] In some possible implementations, the subject includes:

[0016] The first connecting part is connected to the first flange and is set at an angle to the first flange;

[0017] The second connecting part is connected to the second flange and is set at an angle to the second flange. Along the first direction, the second connecting part is set opposite to the first connecting part.

[0018] The third connecting portion is arranged in a second direction perpendicular to the first direction, and is disposed opposite to the second reinforcing member. The third connecting portion is connected to the first connecting portion and the second connecting portion, and has the second connecting position.

[0019] In some possible implementations, the third connecting part has a connecting hole for mounting a connector, the connecting hole being located within the second connecting position, and the second reinforcing member has a clearance hole for avoiding the connector in the area opposite to the connecting hole.

[0020] In some possible implementations, the first reinforcing member and the second reinforcing member are integrally formed.

[0021] In some possible implementations, the cross-sectional area of ​​the buffer cavity increases along a third direction.

[0022] Secondly, embodiments of this application provide a vehicle body pillar assembly, including:

[0023] The vehicle body pillar includes an inner panel and an outer panel, which are connected and enclose a cavity.

[0024] The reinforcing beam described in the first aspect is disposed within the cavity, wherein the first and third connecting positions of the reinforcing beam are both connected to the outer plate, and the second connecting position of the reinforcing beam is connected to the inner plate.

[0025] During a collision, the cavities and buffer chambers of the body pillar assembly can absorb collision energy through their own compression deformation and wrinkling deformation, prolonging the energy transfer path and time, reducing the intensity of the collision impact force transferred to the passenger compartment, and mitigating the impact load on the passenger compartment.

[0026] In some possible implementations, both the cavity and the buffer cavity extend along a third direction; along the third direction, the cross-sectional area of ​​the buffer cavity of the reinforcing beam increases, and the large end of the buffer cavity is located in the middle of the cavity.

[0027] Thirdly, embodiments of this application provide a vehicle including the reinforcing beam described in the first aspect or the body pillar assembly described in the second aspect.

[0028] It should be understood that the second and third aspects of this application correspond to the technical solutions of the first aspect of this application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation are similar, and will not be repeated here. Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of a vehicle body pillar assembly provided in one or more embodiments of this application;

[0030] Figure 2 An exploded view of a vehicle body pillar assembly provided in one or more embodiments of this application;

[0031] Figure 3 A rear view of a vehicle body pillar assembly provided in one or more embodiments of this application;

[0032] Figure 4 For along Figure 3 A cross-sectional view along the AA direction;

[0033] Figure 5 For along Figure 3 Cross-sectional view along the BB direction;

[0034] Figure 6Structural schematic of the reinforcing beam provided in one or more embodiments of this application Figure 1 ;

[0035] Figure 7 Structural schematic of the reinforcing beam provided in one or more embodiments of this application Figure 2 ;

[0036] Figure 8 Structural schematic of the reinforcing beam provided in one or more embodiments of this application Figure 3 ;

[0037] Figure 9 Structural schematic of the reinforcing beam provided in one or more embodiments of this application Figure 4 .

[0038] Explanation of reference numerals in the attached figures:

[0039] 100-Reinforcing beam, 100a-Buffer cavity, 100b-First connecting position, 100c-Second connecting position, 100d-Third connecting position, 100e-Fourth connecting position, 110-First reinforcing member, 111-Main body, 112-First connecting part, 113-Second connecting part, 114-Third connecting part, 114a-Connecting hole, 115-First flange, 116-Second flange, 120-Second reinforcing member, 120a-Allowing hole, 200-Body pillar, 200a-Cavity, 210-Inner panel, 220-Outer panel, 300-Connecting member, 1000-Body pillar assembly. Detailed Implementation

[0040] In the automotive body structure, the body pillar 200 is a longitudinal support component that connects the roof and the bottom of the body. According to its position on the side of the body, it is mainly divided into A pillar, B pillar and C pillar. Some MPV or SUV models, due to their longer body structure, will also have a D pillar.

[0041] The B-pillar, or central pillar, is a longitudinal pillar located between the front and rear seats of the driver's cabin, between the front and rear doors on both sides. It connects upwards to the roof beam and extends downwards to the chassis frame at the bottom of the vehicle body.

[0042] With the development and progress of the automotive industry, frameless doors, which were originally exclusive to supercars, have begun to enter the lives of ordinary people. At the same time, with the increasing improvement of vehicle collision safety standards, the structural strength requirements for the B-pillar are becoming higher and higher. Because the outer cavity of the B-pillar of frameless doors is small and the structure is relatively weak, the upper part of the B-pillar is prone to bending and tearing during a vehicle collision, which can endanger the safety of occupants.

[0043] In view of this, this application designs a reinforcing beam 100, a body pillar assembly 1000, and a vehicle. The reinforcing beam 100, the body pillar assembly 1000, and the vehicle provided in the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0044] In the attached diagram, X represents the first direction, Y represents the second direction, and Z represents the third direction. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0045] like Figures 1 to 9 As shown, the reinforcing beam 100 is used to install on the vehicle body pillar 200, which includes an inner panel 210 and an outer panel 220. The reinforcing beam 100 has a buffer cavity 100a. The reinforcing beam 100 also has a first connecting position 100b, a second connecting position 100c, and a third connecting position 100d, which are arranged in a triangular pattern. The first connecting position 100b and the third connecting position 100d are both used to connect with the outer panel 220, and the second connecting position 100c is used to connect with the inner panel 210.

[0046] A reinforcing beam 100 is installed on the vehicle body pillar 200 to enhance the structural strength of the vehicle body pillar 200. The vehicle body pillar 200 can be an A-pillar, B-pillar, C-pillar, D-pillar, etc., and is not limited in this application. Specifically, the vehicle body pillar 200 includes an inner panel 210 and an outer panel 220, which are fixedly connected and form a cavity 200a. The reinforcing beam 100 is installed in the cavity 200a and is fixedly connected to both the inner panel 210 and the outer panel 220.

[0047] The reinforcing beam 100 has a buffer cavity 100a, which extends along the length of the reinforcing beam 100, that is, along the third direction Z. The cross-sectional shape and size of the buffer cavity 100a can be adaptively designed according to the shape and size of the cavity 200a, and are not limited in this application.

[0048] The reinforcing beam 100 includes, but is not limited to, having a first connecting position 100b, a second connecting position 100c, and a third connecting position 100d; it may also have other connecting positions. It should be noted that, for example... Figure 9 As shown, the first connection position 100b and the third connection position 100d are two independent connection areas on the reinforcing beam 100, both used for connection with the outer plate 220, and are distributed at intervals along the first direction X. Specifically, the connection of the first connection position 100b to the outer plate 220 means that the area of ​​the reinforcing beam 100 where the first connection position 100b is located is fixedly connected to the outer plate 220. Similarly, the connection of the third connection position 100d to the outer plate 220 also means that the area of ​​the reinforcing beam 100 where the third connection position 100d is located is fixedly connected to the outer plate 220. Figure 7 As shown, the second connection position 100c is a connection area on the reinforcing beam 100 that is used separately for connection with the inner plate 210. The connection between the second connection position 100c and the inner plate 210 specifically means that the area of ​​the reinforcing beam 100 where the second connection position 100c is located is fixedly connected to the inner plate 210.

[0049] The first connecting position 100b, the second connecting position 100c, and the third connecting position 100d are arranged in a triangle, that is, the lines connecting the first connecting position 100b, the second connecting position 100c, and the third connecting position 100d form a triangle. The first connecting position 100b and the third connecting position 100d are both used for fixed connection with the outer panel 220, and the second connecting position 100c is used for fixed connection with the inner panel 210. The fixed connection method can be welding, bolting, bonding, etc., and is not limited in this application.

[0050] With this design, when the reinforcing beam 100 is installed inside the body pillar 200, the collision resistance of the body pillar 200 can be improved through the dual effects of the triangular connection structure and the energy absorption of the buffer cavity 100a. On the one hand, the first connection position 100b and the third connection position 100d form two-point support on the outer plate 220, and the second connection position 100c forms a single-point support on the inner plate 210. These three connection positions constitute a triangular force-bearing system. Relying on the geometric stability of the triangle, it can effectively disperse the lateral load during the collision (such as the impact force during a side collision), improve the collision resistance of the body pillar 200, and reduce the risk of bending and tearing of the body pillar 200 due to insufficient structural load-bearing capacity. On the other hand, the buffer cavity 100a can absorb the collision energy through its own compression deformation and wrinkling deformation during the collision, prolong the energy transfer path and time, reduce the intensity of the collision impact force transferred to the passenger compartment, and further alleviate the impact load on the passenger compartment. In summary, the reinforcing beam 100 of this application enhances the collision resistance of the body pillar 200 through the dual effects of the triangular connection structure and the energy absorption of the buffer cavity 100a, thereby improving the overall vehicle collision safety level and meeting the current high requirements of the automotive industry for body structure strength and occupant safety.

[0051] like Figure 4 , Figure 7 and Figure 9 As shown, in some embodiments, the first connection position 100b and the third connection position 100d are spaced apart along a first direction; along a second direction perpendicular to the first direction, the projection of the second connection position 100c on the outer plate 220 is located between the first connection position 100b and the third connection position 100d.

[0052] With this design, when the outer panel 220 of the vehicle body pillar 200 bears a collision load along the second direction Y, because the projection of the second connecting position 100c in the Y direction is located between the first connecting position 100b and the third connecting position 100d, the load transmitted by the outer panel 220 can converge in the middle along the first direction X, and be evenly transmitted to the second connecting position 100c of the inner panel 210 through the first connecting position 100b and the third connecting position 100d, making the force on these three connecting positions more balanced. This layout can reduce the possibility of the first connecting position 100b or the third connecting position 100d breaking due to excessive load concentration, and at the same time reduce the risk of unbalanced force transmission path caused by the offset of the second connecting position 100c. At the same time, this layout allows the buffer cavity 100a to be more evenly distributed along the plane containing the first direction X and the second direction Y when absorbing energy during collision deformation, reducing the possibility of premature breakage due to local overload and improving the collision resistance stability of the vehicle body pillar 200.

[0053] like Figure 4 and Figure 9 As shown, in some embodiments, the first connection position 100b and the third connection position 100d are spaced apart along the first direction X; the reinforcing beam 100 also has a fourth connection position 100e, which is connected to the outer plate 220 and is located between the first connection position 100b and the third connection position 100d along the first direction X.

[0054] It should be noted that the fourth connection position 100e is an independent connection area on the reinforcing beam 100 for connecting with the outer panel 220, and along the first direction X, the fourth connection position 100e is located between the first connection position 100b and the third connection position 100d; the connection between the fourth connection position 100e and the outer panel 220 specifically refers to the fixed connection between the area of ​​the reinforcing beam 100 where the fourth connection position 100e is located and the outer panel 220. The above-mentioned fixed connection method can be welding, bolt connection, snap-fit, etc., which is determined according to the material of the body pillar 200 and the assembly process requirements, and this application does not limit it.

[0055] By adding a fourth connection point 100e between the outer panel 220 and the reinforcing beam 100, the number of connection points between the two increases and their distribution along the first direction X becomes denser, which helps to enhance the overall connection strength between the reinforcing beam 100 and the outer panel 220. When the outer panel 220 is subjected to a collision load along the second direction Y, the dispersed connection points can transfer the load to the reinforcing beam 100 more evenly, reducing the possibility of loosening or breaking of a single connection point due to concentrated force, thereby reducing the risk of relative displacement between the outer panel 220 and the reinforcing beam 100. At the same time, the distribution of multiple connection points allows the collision load to spread more smoothly to the entire reinforcing beam 100 during transmission. Combined with the deformation energy absorption effect of the buffer cavity 100a, it can reduce the possibility of excessive deformation of the body pillar 200 due to excessive force in some areas, thereby improving the collision resistance performance of the body pillar 200.

[0056] like Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, in some embodiments, the reinforcing beam 100 includes a first reinforcing member 110 and a second reinforcing member 120. The first reinforcing member 110 includes a main body 111, a first flange 115 and a second flange 116. Along the first direction X, the first flange 115 and the second flange 116 are respectively connected to both sides of the main body 111, and the main body 111 has a second connection position 100c. The second reinforcing member 120 is connected to the first flange 115 and the second flange 116, and together with the main body 111, forms a buffer cavity 100a. Along the second direction Y, the area of ​​the second reinforcing member 120 opposite to the first flange 115 has a first connection position 100b, and the area of ​​the second reinforcing member 120 opposite to the second flange 116 has a third connection position 100d.

[0057] The first flange 115 and the second flange 116 are both fixedly connected to the main body 111. Along the first direction X, the first flange 115 and the second flange 116 are respectively connected to both sides of the main body 111; that is, the first flange 115 is located on one side of the main body 111 along the first direction X, and the second flange 116 is located on the other side of the main body 111 along the first direction X. Figure 4 As shown, along the first direction X, the first flange 115 is located on the left side of the main body 111, and the second flange 116 is located on the right side of the main body 111. The main body 111 has an area that is fixedly connected to the inner plate 210, namely the second connection position 100c, and the main body 111 is fixedly connected to the inner plate 210.

[0058] The second reinforcing member 120 is fixedly connected to both the first flange 115 and the second flange 116. After the second reinforcing member 120 is connected to the first flange 115 and the second flange 116, the second reinforcing member 120 and the main body 111 together form a buffer cavity 100a. Along the second direction Y, the area of ​​the second reinforcing member 120 opposite to the first flange 115 has a first connection position 100b, that is, the side of the second reinforcing member 120 connected to the first flange 115 has a first connection position 100b; the area of ​​the second reinforcing member 120 opposite to the second flange 116 has a third connection position 100d, that is, the side of the second reinforcing member 120 connected to the second flange 116 has a third connection position 100d.

[0059] The first flange 115 and the second flange 116 are respectively disposed on both sides of the main body 111 along the first direction X and fixedly connected thereto, forming a lateral support structure for the main body 111, which helps to enhance the bending resistance of the main body 111 along the first direction X. When the main body 111 transmits the load of the inner plate 210 or bears the impact of a collision through the second connection position 100c, the flanges on both sides can disperse the lateral moment on the main body 111, reduce the situation where the main body 111 will dent or twist in the middle due to large force on one side, and improve the structural stability of the main body 111 as a connecting carrier of the inner plate 210.

[0060] In some embodiments, the main body 111 includes a first connecting portion 112, a second connecting portion 113, and a third connecting portion 114. The first connecting portion 112 is connected to a first flange 115 and is angled relative to the first flange 115. The second connecting portion 113 is connected to a second flange 116 and is angled relative to the second flange 116. Along a first direction X, the second connecting portion 113 is disposed opposite to the first connecting portion 112. Along a second direction Y, the third connecting portion 114 is disposed opposite to the second reinforcing member 120, and the third connecting portion 114 is connected to the first connecting portion 112 and the second connecting portion 113, and has a second connecting position 100c.

[0061] In these embodiments, the first flange 115 is disposed on the side of the first connecting portion 112 away from the second connecting portion 113, and the second flange 116 is disposed on the side of the second connecting portion 113 away from the first connecting portion 112. The first connecting portion 112 is fixedly connected to the first flange 115, the second connecting portion 113 is fixedly connected to the second flange 116, and the third connecting portion 114 is fixedly connected to both the first connecting portion 112 and the second connecting portion 113. The fixing method can be welding, integral molding, bolt connection, etc., and this application does not limit the method. The angle setting can be a right angle, an acute angle, or an obtuse angle, and the specific angle can be determined according to the internal space of the vehicle body pillar 200 and the load transmission requirements, and this application does not limit the method.

[0062] Along a cross section perpendicular to the third direction Z, the cross section after the first connecting part 112, the second connecting part 113, and the third connecting part 114 are connected forms a U-shape. Based on this, after the first connecting part 112, the second connecting part 113, and the third connecting part 114 are connected to the first flange 115 and the second flange 116, the cross section along the third direction Z forms a Z-shape. The Z-shaped structure is a hollow structure, and its internal hollow area reserves space for the subsequent molding of the buffer cavity 100a.

[0063] When the second reinforcing member 120 is fixedly connected to the first flange 115 and the second flange 116, the second reinforcing member 120 will cover the open end of the zigzag structure away from the third connecting part 114, thereby closing the hollow area of ​​the zigzag structure and finally forming a complete buffer cavity 100a. There is no need to design a complex splicing structure, which helps to reduce the manufacturing difficulty of the buffer cavity 100a, adapt to conventional stamping and welding processes, and reduce the risk of processing steps and dimensional errors. Meanwhile, the U-shaped main body 111 has good bending resistance. The first connecting parts 112 and the second connecting parts 113 on both sides can disperse the load on the third connecting part 114. The zigzag structure expands the connection area with the second reinforcing member 120 through the flange, so that the load on the outer plate 220 can be smoothly transferred to the first connecting part 112 and the second connecting part 113 after passing through the first connecting part 100b and the third connecting part 100d, and then transferred to the inner plate 210, reducing local stress concentration and enhancing the overall structural rigidity and load transfer stability. In addition, the first connecting part 112 and the first flange The angles of edge 115, second connecting part 113 and second flange 116 can be flexibly adjusted according to the internal space of the body pillar 200 to improve the structural fit. The closed design of the U-shaped hollow and buffer cavity 100a reduces the amount of material used while ensuring rigidity, which helps to meet the requirements of lightweight design. Moreover, the closed buffer cavity 100a can undergo controllable deformation to absorb energy during a collision, reducing the force transmission to the passenger compartment. At the same time, the rigidity of the U-shaped and U-shaped cross sections can, to a certain extent, avoid structural failure caused by excessive deformation, ensure the stability of the energy absorption process, and improve the collision resistance performance of the body pillar 200.

[0064] In some embodiments, the second reinforcing member 120, the first flange 115, the second flange 116, the first connecting portion 112, the second connecting portion 113, and the third connecting portion 114 are all plate-shaped structures.

[0065] like Figure 4 As shown, in some embodiments, the first flange 115 and the first connecting portion 112 are set at an acute angle, the second connecting portion 113 and the second flange 116 are set at an obtuse angle, the first connecting portion 112 and the third connecting portion 114 are set at an acute angle, and the second connecting portion 113 and the third connecting portion 114 are set at an obtuse angle.

[0066] like Figure 6 and Figure 8 As shown, in some embodiments, the third connecting part 114 is provided with a connecting hole 114a for mounting the connector 300. The connecting hole 114a is located in the second connecting position 100c. The second reinforcing member 120 is provided with a clearance hole 120a for avoiding the connector 300 in the area opposite to the connecting hole 114a.

[0067] The third connecting part 114 has a connecting hole 114a on its second connecting position 100c, which is used to install the connector 300. The connector 300 is used to fix the third connecting part 114 to the inner plate 210. Specifically, screws, rivets, etc., can be used. They are inserted into the connecting hole 114a and form a fixed connection with the inner plate 210. The clearance hole 120a is used to allow the connector 300 to pass through during the assembly process. It is opened on the second reinforcing member 120 in the area opposite to the connecting hole 114a along the second direction Y. The size and shape of the clearance hole 120a are adapted to the shape of the connector 300 to avoid structural interference with the connector 300. This design not only facilitates the connector 300 to pass through the second reinforcing member 120 and smoothly enter the connecting hole 114a to complete the assembly, but also provides operating space for the subsequent disassembly and maintenance of the connector 300.

[0068] To improve the stability of the connection between the third connecting part 114 and the inner panel 210, multiple connecting holes 114a can be opened on the third connecting part 114. Each connecting hole 114a is provided with a connector 300. These connectors 300 pass through the connecting holes 114a and are fixedly connected to the inner panel 210. This design can distribute the load on the second reinforcing member 120 to multiple connectors 300, reducing the possibility of loosening or breaking of a single connector 300 due to concentrated force. This helps to improve the overall firmness of the connection between the second reinforcing member 120 and the inner panel 210. When the vehicle vibrates or is subjected to collision loads, the connection between the two is more stable, and the assembly reliability of the reinforcing beam 100 and the body pillar 200 is strengthened.

[0069] like Figure 6 As shown, in some embodiments, along the third direction Z, four connecting holes 114a are provided at intervals on the third connecting portion 114, such as... Figure 8 As shown, the second reinforcing member 120 is provided with three clearance holes 120a.

[0070] The first reinforcing member 110 and the second reinforcing member 120 can be two independent components. After being processed independently, they can be assembled into a single unit through welding, bolting, snap-fitting, or other fixed connection methods to form the reinforcing beam 100. This split structure allows for the selection of different materials for the first reinforcing member 110 and the second reinforcing member 120 based on their different functional requirements. For example, the first reinforcing member 110 can use high-strength steel to improve load-bearing capacity, while the second reinforcing member 120 can use lightweight alloys to reduce weight. Alternatively, the complex structures of both components can be processed in different areas to reduce the molding difficulty of individual parts, thus balancing the performance requirements of different parts with the overall manufacturing flexibility.

[0071] In some embodiments, the first reinforcing member 110 and the second reinforcing member 120 are integrally formed.

[0072] Since the reinforcing beam 100 includes a first reinforcing member 110 and a second reinforcing member 120, the first reinforcing member 110 and the second reinforcing member 120 are integrally formed, that is, the reinforcing beam 100 has a single integral structure. The first reinforcing member 110 and the second reinforcing member 120 can be integrally formed through processes such as stamping and casting. The integral forming design can reduce the connection process between the first reinforcing member 110 and the second reinforcing member 120, reduce the risk of gaps or connection failures caused by splicing, and at the same time improve the overall structural integrity and deformation resistance of the reinforcing beam 100, making it suitable for scenarios with high rigidity requirements for the vehicle body pillar 200.

[0073] In some embodiments, the cross-sectional area of ​​the buffer cavity 100a increases along the third direction Z.

[0074] When the reinforcing beam 100 is installed on the vehicle body, its third direction Z is parallel to the vehicle height direction or forms a certain angle with it. For the vehicle pillar 200, the collision intensity varies across different height areas; specifically, the collision intensity is lower near the roof and relatively higher in the central area. The design of the buffer cavity 100a, with its cross-sectional area increasing along the third direction, allows the larger cross-sectional area of ​​the buffer cavity 100a to correspond to the central area of ​​the vehicle pillar 200 with higher collision intensity. This larger cross-section enhances the deformation resistance and energy absorption effect of this area, better handling collision loads. Simultaneously, this change in cross-sectional area also adapts to the shape of the cavity 200a inside the vehicle pillar 200, allowing the reinforcing beam 100 to smoothly embed into the vehicle pillar 200 and fit snugly against the inner wall of the vehicle pillar 200, improving the fit between the two and avoiding assembly gaps or wasted space due to mismatched structural dimensions.

[0075] like Figure 1 , Figure 2 and Figure 3 As shown, based on the same inventive concept, this application also provides a vehicle body pillar assembly 1000, including: a vehicle body pillar 200 and the aforementioned reinforcing beam 100. The vehicle body pillar 200 includes an inner panel 210 and an outer panel 220, which are connected and enclose a cavity 200a. The reinforcing beam 100 is disposed within the cavity 200a, and the first connecting position 100b and the third connecting position 100d of the reinforcing beam 100 are both connected to the outer panel 220, while the second connecting position 100c of the reinforcing beam 100 is connected to the inner panel 210.

[0076] The vehicle body pillar 200 can be an A-pillar, B-pillar, C-pillar, or D-pillar, etc., and is not limited in this application. The inner panel 210 and the outer panel 220 are fixedly connected, and the inner panel 210 and the outer panel 220 enclose a cavity 200a. The reinforcing beam 100 is installed in the cavity 200a and is fixedly connected to both the inner panel 210 and the outer panel 220. The cross-sectional shape and size of the buffer cavity 100a can be adaptively designed according to the shape and size of the cavity 200a. During a collision, the cavity 200a and the buffer cavity 100a of the vehicle body pillar assembly 1000 can absorb collision energy through their own compression deformation and wrinkling deformation, prolonging the energy transfer path and time, reducing the intensity of the collision impact force transmitted to the passenger compartment, and mitigating the impact load on the passenger compartment.

[0077] Since the body pillar assembly 1000 includes the aforementioned reinforcing beam 100, it naturally possesses all the beneficial effects of the reinforcing beam 100, which will not be elaborated upon here.

[0078] In some embodiments, both the cavity 200a and the buffer cavity 100a extend along the third direction Z; along the third direction Z, the cross-sectional area of ​​the buffer cavity 100a of the reinforcing beam 100 increases, and the large end of the buffer cavity 100a is located in the middle of the cavity 200a.

[0079] When the body pillar assembly 1000 is installed on the body, the third direction Z is parallel to the body height direction or at a certain angle to the body height direction. For the body pillar 200, the collision intensity varies in different height areas. Specifically, the collision intensity is lower in the area near the roof and relatively higher in the middle area. The design of increasing cross-sectional area of ​​the buffer cavity 100a along the third direction allows the larger area of ​​the buffer cavity 100a (i.e., the large end) to correspond to the middle area of ​​the body pillar 200 with higher collision intensity. The larger cross-section enhances the deformation resistance and energy absorption effect of this area, better coping with collision loads. At the same time, this change in cross-sectional area can also be adapted to the shape of the cavity 200a inside the body pillar 200, allowing the reinforcing beam 100 to be smoothly embedded in the body pillar 200 and fit against the inner wall of the body pillar 200, improving the fit of the two and avoiding assembly gaps or wasted space due to mismatch in structural dimensions.

[0080] like Figure 2 As shown, in some embodiments, the reinforcing beam 100 is disposed on the upper part of the cavity 200a.

[0081] Based on the same inventive concept, this application also provides a vehicle, including the aforementioned reinforcing beam 100 or body pillar assembly 1000.

[0082] Since the vehicle includes the aforementioned reinforcing beam 100, it naturally possesses all the beneficial effects of the reinforcing beam 100, which will not be elaborated upon here. The type of vehicle is diverse, including passenger cars, commercial vehicles, etc., and is not limited in this application.

[0083] The term "multiple" in this document refers to two or more. The term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the preceding and following related objects; in formulas, the character " / " indicates a "division" relationship between the preceding and following related objects. Additionally, it should be understood that in the description of the embodiments of this application, terms such as "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or order.

[0084] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0085] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

Claims

1. A reinforcing beam, characterized in that, For mounting on a vehicle body pillar (200), the vehicle body pillar (200) includes an inner panel (210) and an outer panel (220); The reinforcing beam (100) has a buffer cavity (100a); The reinforcing beam (100) also has a first connecting position (100b), a second connecting position (100c) and a third connecting position (100d), which are arranged in a triangular pattern. The first connecting position (100b) and the third connecting position (100d) are both used to connect with the outer plate (220), and the second connecting position (100c) is used to connect with the inner plate (210).

2. The reinforcing beam according to claim 1, characterized in that, The first connection position (100b) and the third connection position (100d) are spaced apart along a first direction; along a second direction perpendicular to the first direction, the projection of the second connection position (100c) on the outer plate (220) is located between the first connection position (100b) and the third connection position (100d).

3. The reinforcing beam according to claim 1, characterized in that, The first connecting position (100b) and the third connecting position (100d) are spaced apart along a first direction; the reinforcing beam (100) also has a fourth connecting position (100e), which is used to connect with the outer plate (220), and along the first direction, the fourth connecting position (100e) is located between the first connecting position (100b) and the third connecting position (100d).

4. The reinforcing beam according to any one of claims 1-3, characterized in that, The reinforcing beam (100) includes: The first reinforcing member (110) includes a main body (111), a first flange (115) and a second flange (116). Along a first direction, the first flange (115) and the second flange (116) are respectively connected to both sides of the main body (111), and the main body (111) has a second connection position (100c). The second reinforcing member (120) is connected to the first flange (115) and the second flange (116), and together with the main body (111) forms the buffer cavity (100a); along the second direction, the area of ​​the second reinforcing member (120) opposite to the first flange (115) has the first connection position (100b), and the area of ​​the second reinforcing member (120) opposite to the second flange (116) has the third connection position (100d).

5. The reinforcing beam according to claim 4, characterized in that, The main body (111) includes: The first connecting part (112) is connected to the first flange (115) and is set at an angle to the first flange (115); The second connecting part (113) is connected to the second flange (116) and is set at an angle to the second flange (116). Along the first direction, the second connecting part (113) is set opposite to the first connecting part (112). The third connecting part (114) is arranged in a second direction perpendicular to the first direction. The third connecting part (114) is disposed opposite to the second reinforcing member (120). The third connecting part (114) is connected to the first connecting part (112) and the second connecting part (113) and has the second connecting position (100c).

6. The reinforcing beam according to claim 5, characterized in that, The third connecting part (114) is provided with a connecting hole (114a) for installing the connector (300). The connecting hole (114a) is located in the second connecting position (100c). The second reinforcing member (120) is provided with a clearance hole (120a) in the area opposite to the connecting hole (114a) for avoiding the connector (300).

7. The reinforcing beam according to claim 4, characterized in that, The first reinforcing member (110) and the second reinforcing member (120) are integrally formed.

8. The reinforcing beam according to any one of claims 1-3, characterized in that, Along the third direction, the cross-sectional area of ​​the buffer cavity (100a) increases.

9. A vehicle body pillar assembly, characterized in that, include: The vehicle body pillar (200) includes an inner panel (210) and an outer panel (220), the inner panel (210) and the outer panel (220) are connected and enclose a cavity (200a). The reinforcing beam (100) according to any one of claims 1-8 is disposed in the cavity (200a), wherein the first connecting position (100b) and the third connecting position (100d) of the reinforcing beam (100) are both connected to the outer plate (220), and the second connecting position (100c) of the reinforcing beam (100) is connected to the inner plate (210).

10. The vehicle body pillar assembly according to claim 9, characterized in that, Both the cavity (200a) and the buffer cavity (100a) extend along a third direction; along the third direction, the cross-sectional area of ​​the buffer cavity (100a) of the reinforcing beam (100) increases, and the large end of the buffer cavity (100a) is located in the middle of the cavity (200a).

11. A vehicle, characterized in that, It includes the reinforcing beam (100) according to any one of claims 1-8 or the body pillar assembly (1000) according to any one of claims 9-10.

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