Vehicle body B column assembly and vehicle

Abstract

The utility model relates to a vehicle body B column assembly and a vehicle, the vehicle body B column assembly is connected to one end of a roof side rail, the vehicle body B column assembly comprises a reinforcing plate, an inner plate and an outer reinforcing plate, the roof side rail is connected to one end of the reinforcing plate, the reinforcing plate and the inner plate are connected and define an assembling cavity, and the outer reinforcing plate is arranged in the assembling cavity; the end, close to the roof side rail, of the reinforcing plate is defined as an anti-bending section, the end, away from the roof side rail, of the reinforcing plate is defined as an energy absorption section, the outer reinforcing plate is connected to the anti-bending section, and the outer reinforcing plate and the inner plate are arranged at intervals. According to the vehicle body B-pillar assembly and the vehicle, the problem that an existing vehicle body B-pillar assembly is prone to breakage due to sudden huge impact stress is solved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle body B-pillar structures, and in particular to a vehicle body B-pillar assembly and a vehicle. Background Art

[0002] The B-pillar assembly, also known as the center pillar, is located between the front and rear doors, bearing the pressure from both the roof and the front and rear doors. Therefore, in side collisions and top compression, the B-pillar assembly is an essential and important load-bearing component that resists deformation.

[0003] However, in side collision and top pressure conditions, the existing vehicle body B-pillar assembly is prone to breakage due to sudden and huge impact stress, thus causing serious safety accidents. Utility Model Content

[0004] Based on this, it is necessary to provide a vehicle body B-pillar assembly and a vehicle to solve the problem that the existing vehicle body B-pillar assembly is prone to fracture due to sudden and huge impact stress.

[0005] The vehicle body B-pillar assembly provided in the present application is connected to one end of the upper side beam. The vehicle body B-pillar assembly includes a reinforcement plate, an inner plate and an outer patch plate. The upper side beam is connected to one end of the reinforcement plate. The reinforcement plate and the inner plate are connected and enclosed to form an assembly cavity. The outer patch plate is arranged in the assembly cavity. The end of the reinforcement plate close to the upper side beam is defined as the anti-bending section, the end of the reinforcement plate away from the upper side beam is defined as the energy absorption section, the outer patch plate is connected to the anti-bending section, and the outer patch plate and the inner plate are arranged at intervals.

[0006] In one embodiment, the vehicle body B-pillar assembly further includes an inner patch plate, which is disposed in the assembly cavity and connected to the inner plate, and the outer patch plate and the inner patch plate are spaced apart.

[0007] In one embodiment, the inner panel includes a third side panel, a fourth side panel, and a second connecting plate connecting the third side panel and the fourth side panel, the end of the third side panel away from the second connecting plate extends toward the direction close to the anti-bending section and is connected to the anti-bending section, and the end of the fourth side panel away from the second connecting plate extends toward the direction close to the anti-bending section and is connected to the anti-bending section.

[0008] In one embodiment, the inner patch plate includes a first split plate and a second split plate, the first split plate is arranged at the connection between the third side plate and the second connecting plate, and the first split plate is respectively connected to the third side plate and the second connecting plate, the second split plate is arranged at the connection between the fourth side plate and the second connecting plate, and the second split plate is respectively connected to the fourth side plate and the second connecting plate.

[0009] In one embodiment, the first split panel includes a first bending section and a second bending section connected in an L-shape, the first bending section and the second bending section are stamped and formed as one piece, and the first bending section is attached to and connected to the surface of the third side panel, and the second bending section is attached to and connected to the surface of the second connecting plate.

[0010] In one embodiment, the second split plate includes a third bending section and a fourth bending section connected in an L-shape, the third bending section and the fourth bending section are integrally stamped and formed, and the third bending section is attached to and connected to the surface of the fourth side plate, and the fourth bending section is attached to and connected to the surface of the second connecting plate.

[0011] In one embodiment, the outer patch extends from one end of the anti-bending section connected to the upper edge beam to one end of the anti-bending section connected to the energy absorbing section.

[0012] In one embodiment, the cross section of the outer patch is U-shaped.

[0013] In one embodiment, the inner plate is provided with a plurality of hollow holes extending through the inner plate along its thickness direction.

[0014] In one embodiment, the bending section is made of hot-formed steel, with a yield strength greater than 950 MPa and a tensile strength greater than 1300 MPa. The energy-absorbing section is also made of hot-formed steel, with a yield strength greater than 370 MPa and a tensile strength greater than 550 MPa.

[0015] The present application also provides a vehicle, which includes the vehicle body B-pillar assembly described in any one of the above embodiments.

[0016] Compared with the prior art, the vehicle body B-pillar assembly and vehicle provided in the present application, as can be seen from the above, firstly, by connecting and enclosing the reinforcing plate and the inner plate to form an assembly cavity, can effectively increase the structural strength of the vehicle body B-pillar assembly to resist deformation in side collisions and top pressure resistance conditions, thereby reducing the injuries to the occupants of the vehicle.

[0017] Furthermore, because the reinforcement plate is divided into a bending-resistant section and an energy-absorbing section, and the outer patch is only located in the bending-resistant section, when the top of the vehicle is subjected to a large impact force (or pressure), the energy-absorbing section of the reinforcement plate can quickly collapse, absorbing most of the top impact force through its own deformation. The bending-resistant structure formed by the connection between the bending-resistant section of the reinforcement plate and the outer patch then resists the remaining top impact force. Obviously, since a large amount of the top impact force has been absorbed by the energy-absorbing section, the probability of fracture of the vehicle body B-pillar assembly is greatly reduced.

[0018] Furthermore, because the outer patch and inner panel are spaced apart, when the side of the vehicle is subjected to a significant impact (or pressure), the reinforcement plate and outer patch can bend toward the inner panel until the outer patch directly contacts the inner panel. Clearly, the reinforcement plate and outer patch can absorb a significant amount of the side impact force during this bending process, and the remaining side impact force is unlikely to cause a fracture in the entire B-pillar assembly.

[0019] Furthermore, since the vehicle body B-pillar assembly in the present application is a composite structure formed by connecting multiple components (including but not limited to reinforcement plates, inner plates and outer patch plates), compared with the existing one-piece molded structure, the vehicle body B-pillar assembly in the present application can not only effectively improve the structural strength, but also significantly reduce its own weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic structural diagram of a vehicle body B-pillar assembly according to an embodiment of the present application;

[0022] Figure 2 This is an exploded view of the vehicle body B-pillar assembly according to an embodiment of the present application;

[0023] Figure 3 This is a schematic cross-sectional view of the B-pillar assembly of a vehicle body according to an embodiment of the present application.

[0024] 1 , a first side panel; a second side panel; a third side panel; a third side panel; a fourth side panel; a fourth side panel; a fourth side panel; a fourth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel; a fifth side panel DETAILED DESCRIPTION

[0025] The B-pillar assembly, also known as the center pillar, is located between the front and rear doors, bearing the pressure from both the roof and the front and rear doors. Therefore, in side collisions and top compression, the B-pillar assembly is an essential and important load-bearing component that resists deformation.

[0026] However, in side collision and top pressure conditions, the existing vehicle body B-pillar assembly is prone to breakage due to sudden and huge impact stress, thus causing serious safety accidents.

[0027] See also Figure 1-Figure 3 To address the aforementioned technical issues, the present application provides a vehicle body B-pillar assembly and a vehicle. Specifically, the vehicle body B-pillar assembly is connected to one end of a roof rail 100 . The vehicle body B-pillar assembly includes a reinforcement plate 200 , an inner plate 300 , and an outer patch plate 400 . The roof rail 100 is connected to one end of the reinforcement plate 200 .

[0028] Specifically, the reinforcing plate 200 is arranged longitudinally, and the roof side rail 100 is arranged transversely on the top of the reinforcing plate 200. In addition, the roof side rail 100 and the reinforcing plate 200 can be connected by various methods such as welding, riveting, integral die-casting or 3D printing.

[0029] The reinforcing plate 200 and the inner plate 300 are connected and enclosed to form an assembly cavity, and the outer patch plate 400 is arranged in the assembly cavity. The end of the reinforcing plate 200 close to the upper side beam 100 is defined as the anti-bending section 210, and the end of the reinforcing plate 200 away from the upper side beam 100 is defined as the energy absorption section 220. The outer patch plate 400 is connected to the side of the anti-bending section 210 close to the inner plate 300, and the outer patch plate 400 and the inner plate 300 are arranged at intervals.

[0030] Specifically, the reinforcing plate 200 and the inner plate 300 can be connected by various connection methods such as welding, riveting, integral die-casting or 3D printing.

[0031] Furthermore, in one embodiment, the bending section 210 is made of hot-formed steel with a yield strength greater than 950 MPa and a tensile strength greater than 1300 MPa, and the energy-absorbing section 220 is made of hot-formed steel with a yield strength greater than 370 MPa and a tensile strength greater than 550 MPa.

[0032] Specifically, the plate of the anti-bending section 210 and the plate of the energy-absorbing section 220 are first connected by welding (which can be laser welding or other welding methods), and then the entire reinforcement plate 200 is processed by integral die-casting.

[0033] Obviously, when the anti-bending section 210 and the energy-absorbing section 220 of the reinforcing plate 200 are made of materials with different strengths, it is more conducive for the anti-bending section 210 and the energy-absorbing section 220 to play their respective roles.

[0034] However, the present invention is not limited thereto. In other embodiments, the anti-bending section 210 and the energy-absorbing section 220 may be made of materials having exactly the same strength, and their respective functions may be achieved by increasing the thickness of the anti-bending section 210 and reducing the thickness of the energy-absorbing section 220 .

[0035] In order to better enhance the strength of the anti-bending section 210, in one embodiment, as shown in FIG. Figure 2 As shown, the outer patch 400 extends from one end of the anti-bending section 210 connected to the roof rail 100 to one end of the anti-bending section 210 connected to the energy absorbing section 220 , and the outer patch 400 is tightly fitted to the inner wall of the reinforcing plate 200 .

[0036] It should be noted that the outer patch 400 and the anti-bending section 210 can be connected by various connection methods such as welding, fastener connection, or a combination of the two.

[0037] Specifically, the outer patch plate 400 is a rolled differential thickness plate in order to achieve the goal of lightweighting.

[0038] In one embodiment, if Figure 2 As shown, the outer patch 400 has a U-shaped cross-section. Specifically, the outer patch 400 includes a first side panel 410, a second side panel 420, and a first connecting panel 430 connecting the first side panel 410 and the second side panel 420. The first side panel 410, the first connecting panel 430, and the second side panel 420 are sequentially connected and arranged to form the outer patch 400 having a U-shaped groove 440. The opening of the U-shaped groove 440 faces the inner panel 300, and the first connecting panel 430 is connected to the side wall of the anti-bending section 210 that faces the inner panel 300.

[0039] More specifically, the first side plate 410 , the first connecting plate 430 and the second side plate 420 are integrally formed by stamping or welding.

[0040] Such an arrangement significantly increases the overall structural strength of the outer patch plate 400 .

[0041] However, the present invention is not limited thereto. In other embodiments, the cross section of the outer patch plate 400 may also be in an I-shaped structure, etc., which are listed one by one.

[0042] From the above, it can be seen that, firstly, by connecting and enclosing the reinforcing plate 200 and the inner plate 300 to form an assembly cavity, the structural strength of the vehicle body B-pillar assembly can be effectively increased to resist deformation in side collisions and top compression conditions, thereby reducing the injuries to the occupants of the vehicle.

[0043] Furthermore, because the reinforcement plate 200 is divided into a bending-resistant section 210 and an energy-absorbing section 220, and the outer patch 400 is only provided on the bending-resistant section 210, when the top of the vehicle is subjected to a significant impact force (or pressure), the energy-absorbing section 220 of the reinforcement plate 200 can quickly collapse, absorbing most of the top impact force through its own deformation. The bending-resistant structure formed by the connection between the bending-resistant section 210 of the reinforcement plate 200 and the outer patch 400 then resists the remaining top impact force. Clearly, since a large amount of the top impact force has been absorbed by the energy-absorbing section 220, the probability of fracture of the vehicle body B-pillar assembly is greatly reduced.

[0044] Furthermore, because the outer patch 400 and the inner panel 300 are spaced apart, when the side of the vehicle is subjected to a significant impact force (or pressure), the reinforcing plate 200 and the outer patch 400 can bend and deform toward the inner panel 300 until the outer patch 400 directly contacts the inner panel 300. Clearly, the reinforcing plate 200 and the outer patch 400 can absorb a significant amount of the side impact force during this bending process, and the remaining side impact force is unlikely to cause fracture of the entire vehicle body B-pillar assembly.

[0045] Furthermore, since the vehicle body B-pillar assembly in the present application is a composite structure formed by connecting multiple components (including but not limited to the reinforcement plate 200, the inner plate 300 and the outer patch plate 400), compared with the existing one-piece molded structure, the vehicle body B-pillar assembly in the present application can not only effectively improve the structural strength but also significantly reduce its own weight.

[0046] Specifically, in one embodiment, Figure 2 As shown, the inner panel 300 is provided with a plurality of hollow holes 340 penetrating along the thickness direction thereof, so as to reduce the weight of the inner panel 300 , thereby contributing to the lightweighting of the entire vehicle body B-pillar assembly.

[0047] In one embodiment, if Figure 2 and Figure 3 As shown, the vehicle body B-pillar assembly further includes an inner patch plate, which is disposed in the assembly cavity and connected to a side of the inner plate 300 close to the anti-bending section 210 , and the outer patch plate 400 is spaced apart from the inner patch plate.

[0048] This arrangement increases the strength of the inner panel 300 in the area corresponding to the anti-bending section 210 , thereby enhancing the overall strength of the vehicle body B-pillar assembly on the side close to the roof rail 100 .

[0049] Furthermore, in one embodiment, Figure 2 and Figure 3As shown, the inner panel 300 includes a third side panel 310, a fourth side panel 320 and a second connecting panel 330 connecting the third side panel 310 and the fourth side panel 320, and one end of the third side panel 310 away from the second connecting panel 330 extends toward the direction close to the anti-bending section 210 and is connected to the anti-bending section 210, and one end of the fourth side panel 320 away from the second connecting panel 330 extends toward the direction close to the anti-bending section 210 and is connected to the anti-bending section 210.

[0050] Correspondingly, the reinforcing plate 200 includes a fifth side plate 230, a sixth side plate 240 and a third connecting plate 250 connecting the fifth side plate 230 and the sixth side plate 240. The end of the fifth side plate 230 away from the third connecting plate 250 extends toward the direction close to the inner plate 300 and is connected to the inner plate 300. The end of the sixth side plate 240 away from the third connecting plate 250 extends toward the direction close to the inner plate 300 and is connected to the inner plate 300.

[0051] It should be noted that the structure formed by connecting the fifth side panel 230 , the sixth side panel 240 and the third connecting panel 250 has an end close to the roof rail 100 as the anti-bending section 210 and an end away from the roof rail 100 as the energy absorbing section 220 .

[0052] In addition, the fifth side panel 230 and the sixth side panel 240 are both arranged at one end of the reinforcing plate 200 away from the upper side beam 100. Specifically, along the direction from the anti-bending section 210 to the energy-absorbing section 220, the third side panel 310 and the fifth side panel 230 are arranged in sequence and constitute one side wall of the assembly cavity, and the fourth side panel 320 and the sixth side panel 240 are arranged in sequence and constitute the other side wall of the assembly cavity.

[0053] More specifically, the first side panel 410 is attached to and connected to the inner wall of the fifth side panel 230 , the second side panel 420 is attached to and connected to the inner wall of the sixth side panel 240 , and the first connecting panel 430 is attached to and connected to the inner wall of the third connecting panel 250 .

[0054] Such an arrangement greatly enhances the structural strength of the reinforcing plate 200 and the inner plate 300 , and is beneficial to the assembly connection of the reinforcing plate 200 and the inner plate 300 .

[0055] Furthermore, in one embodiment, if Figure 2 and Figure 3 As shown, the inner patch plate includes a first split plate 510 and a second split plate 520. The first split plate 510 is arranged at the connection between the third side plate 310 and the second connecting plate 330, and the first split plate 510 is respectively connected to the third side plate 310 and the second connecting plate 330. The second split plate 520 is arranged at the connection between the fourth side plate 320 and the second connecting plate 330, and the second split plate 520 is respectively connected to the fourth side plate 320 and the second connecting plate 330.

[0056] It should be noted that the third side panel 310 and the second connecting panel 330 are directly connected, rather than being connected via the first split panel 510. The first split panel 510 strengthens the connection strength between the third side panel 310 and the second connecting panel 330. Similarly, the fourth side panel 320 and the second connecting panel 330 are also directly connected, rather than being connected via the second split panel 520. The second split panel 520 strengthens the connection strength between the fourth side panel 320 and the second connecting panel 330.

[0057] Such a configuration can enhance the structural strength of the entire inner panel 300 by strengthening the strength of the bending part of the inner panel 300 (that is, the connection between the third side panel 310 and the second connecting panel 330, and the connection between the fourth side panel 320 and the second connecting panel 330).

[0058] Furthermore, the thickness of the first sub-plate 510 and the thickness of the second sub-plate 520 are both about 2.0 mm, and the thickness of the inner plate 300 is about 1.4 mm, which improves the bending resistance while achieving lightweight parts.

[0059] Specifically, in one embodiment, Figure 2 and Figure 3 As shown, the first split plate 510 includes a first bending section 511 and a second bending section 512 connected in an L-shape. The first bending section 511 and the second bending section 512 are stamped and formed as one piece, and the first bending section 511 is attached to and connected to (including but not limited to welding and fastener connection) the surface of the third side plate 310, and the second bending section 512 is attached to and connected to (including but not limited to welding and fastener connection) the surface of the second connecting plate 330.

[0060] Such an arrangement can maximize the structural strength of the connection between the third side plate 310 and the second connecting plate 330 .

[0061] It should be noted that when the connection between the third side plate 310 and the second connecting plate 330 is a rounded structure, the connection between the first bending section 511 and the second bending section 512 is also a corresponding rounded structure.

[0062] However, the present invention is not limited thereto. In other embodiments, the first sub-plate 510 may also be in the shape of a flat plate, and two ends of the first sub-plate 510 are welded to the third side plate 310 and the second connecting plate 330 , respectively.

[0063] In one embodiment, if Figure 2 and Figure 3As shown, the second split plate 520 includes a third bending section 521 and a fourth bending section 522 connected in an L-shape, the third bending section 521 and the fourth bending section 522 are stamped and formed as one piece, and the third bending section 521 is affixed to and connected to (including but not limited to welding and fastener connection) the surface of the fourth side plate 320, and the fourth bending section 522 is affixed to and connected to (including but not limited to welding and fastener connection) the surface of the second connecting plate 330.

[0064] Such an arrangement can maximize the structural strength of the connection between the fourth side plate 320 and the second connecting plate 330 .

[0065] It should be noted that when the connection between the fourth side plate 320 and the second connecting plate 330 is a rounded structure, the connection between the third bending section 521 and the fourth bending section 522 is also a corresponding rounded structure.

[0066] However, the present invention is not limited thereto. In other embodiments, the second split plate 520 may also be in the shape of a flat plate, and both ends of the second split plate 520 are welded to the fourth side plate 320 and the second connecting plate 330 , respectively.

[0067] In one embodiment, if Figure 2 and Figure 3 As shown, first flanges 260 are respectively provided at both ends of the reinforcing plate 200 , and second flanges 350 are respectively provided at both ends of the inner plate 300 . The first flanges 260 are welded or connected to the second flanges 350 by fasteners.

[0068] In this way, the connection area between the reinforcing plate 200 and the inner plate 300 is increased, thereby improving the structural strength of the vehicle body B-pillar assembly.

[0069] The present application also provides a vehicle, which includes the vehicle body B-pillar assembly described in any one of the above embodiments.

[0070] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

[0072] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0074] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0075] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0076] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0077] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are intended only to describe specific embodiments and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

Claims

1. A vehicle body B-pillar assembly connected to one end of a roof rail (100), characterized in that: The vehicle body B-pillar assembly includes A reinforcing plate (200), the upper side beam (100) being connected to one end of the reinforcing plate (200); An inner plate (300), the reinforcing plate (200) and the inner plate (300) are connected and enclosed to form an assembly cavity; and, An outer patch plate (400) is arranged in the assembly cavity, and one end of the reinforcing plate (200) close to the upper side beam (100) is defined as an anti-bending section (210), and one end of the reinforcing plate (200) away from the upper side beam (100) is defined as an energy absorbing section (220). The outer patch plate (400) is connected to the anti-bending section (210), and the outer patch plate (400) and the inner plate (300) are arranged at intervals.

2. The vehicle body B-pillar assembly according to claim 1, characterized in that: It also includes an inner patching plate, which is arranged in the assembly cavity and connected to the inner plate (300), and the outer patching plate (400) and the inner patching plate are arranged at intervals.

3. The vehicle body B-pillar assembly according to claim 2, characterized in that: The inner plate (300) comprises a third side plate (310), a fourth side plate (320) and a second connecting plate (330) connecting the third side plate (310) and the fourth side plate (320), wherein one end of the third side plate (310) away from the second connecting plate (330) extends toward a direction close to the anti-bending section (210) and is connected to the anti-bending section (210), and one end of the fourth side plate (320) away from the second connecting plate (330) extends toward a direction close to the anti-bending section (210) and is connected to the anti-bending section (210).

4. The vehicle body B-pillar assembly according to claim 3, characterized in that: The inner patch plate comprises a first split plate (510) and a second split plate (520); the first split plate (510) is arranged at the connection between the third side plate (310) and the second connecting plate (330), and the first split plate (510) is respectively connected to the third side plate (310) and the second connecting plate (330); the second split plate (520) is arranged at the connection between the fourth side plate (320) and the second connecting plate (330), and the second split plate (520) is respectively connected to the fourth side plate (320) and the second connecting plate (330).

5. The vehicle body B-pillar assembly according to claim 4, characterized in that: The first split plate (510) comprises a first bending section (511) and a second bending section (512) connected in an L-shape, the first bending section (511) and the second bending section (512) being integrally stamped and formed, and the first bending section (511) is attached to and connected to the surface of the third side plate (310), and the second bending section (512) is attached to and connected to the surface of the second connecting plate (330); And / or, the second split plate (520) comprises a third bending section (521) and a fourth bending section (522) connected in an L-shape, the third bending section (521) and the fourth bending section (522) are integrally stamped and formed, and the third bending section (521) is attached to and connected to the surface of the fourth side plate (320), and the fourth bending section (522) is attached to and connected to the surface of the second connecting plate (330).

6. The vehicle body B-pillar assembly according to claim 1, characterized in that: The outer patch (400) extends from one end of the anti-bending section (210) connected to the upper side beam (100) to one end of the anti-bending section (210) connected to the energy absorbing section (220).

7. The vehicle body B-pillar assembly according to claim 1, characterized in that: The cross section of the outer patch plate (400) is U-shaped.

8. The vehicle body B-pillar assembly according to claim 1, characterized in that: The inner plate (300) is provided with a plurality of hollow holes (340) penetrating along the thickness direction of the inner plate (300).

9. The vehicle body B-pillar assembly according to claim 1, characterized in that: The anti-bending section (210) is made of hot-formed steel, and the yield strength of the anti-bending section (210) is greater than 950 MPa, and the tensile strength of the anti-bending section (210) is greater than 1300 MPa; The energy absorbing section (220) is made of hot-formed steel, the yield strength of the energy absorbing section (220) is greater than 370 MPa, and the tensile strength of the energy absorbing section (220) is greater than 550 MPa.

10. A vehicle, characterized in that: It comprises a vehicle body B-pillar assembly as described in any one of claims 1 to 9.

Images