A b-pillar assembly, vehicle body and vehicle

Abstract

The embodiment of the application provides a B column assembly, a vehicle body and a vehicle, and the B column assembly comprises: an outer plate comprising an outer plate body extending along a second direction; a first inner plate connected to the outer plate body and provided with a recessed portion recessed towards the outer plate; and a second inner plate provided on a side of the first inner plate away from the outer plate along a first direction and connected with the outer plate, wherein the second inner plate and the recessed portion enclose an installation cavity with an opening, and the installation cavity is used for installing a roll-up device. The structural strength and rigidity of the B column assembly in the application are effectively guaranteed, the B column assembly is not prone to breaking in the case that the vehicle is subjected to side collision, and the reliability and safety of the vehicle are ensured.

Description

Technical Field

[0001] This application belongs to the field of vehicle technology, specifically relating to a B-pillar assembly, a vehicle body, and a vehicle. Background Technology

[0002] When a vehicle is subjected to a side collision, the B-pillar, as the main lateral load-bearing structure, needs to bear most of the impact force. Therefore, the structural strength of the B-pillar has a significant impact on the overall safety and reliability of the vehicle.

[0003] In related technologies, the retractors for the driver's and passenger's seat belts are typically installed on the inner panel of the B-pillar. The inner panel of the B-pillar needs to have clearance holes to expose the retractors for seat belt retraction. However, with the increasing intelligence of vehicles, the retractors are gradually increasing in size due to the integration of intelligent functions such as pre-tensioning, force limiting, and reversible tensioning. To accommodate the installation of larger retractors, the clearance holes on the inner panel of the B-pillar need to be enlarged. This reduces the structural strength of the inner panel of the B-pillar, making it more susceptible to fracture during a collision, significantly reducing the vehicle's safety performance. Utility Model Content

[0004] This application aims to provide a B-pillar assembly, body, and vehicle to solve the problem that the structural strength of existing B-pillar assemblies is reduced due to the installation of a retractor.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] Firstly, this application discloses a B-pillar assembly, comprising:

[0007] The outer panel includes an outer panel body extending along the second direction;

[0008] The first inner plate is connected to the inner side of the outer plate body and is provided with a recessed portion that is recessed towards the outer plate.

[0009] And a second inner plate, which is disposed along a first direction on the side of the first inner plate away from the outer plate and connected to the outer plate, the second inner plate and the recess forming an open mounting cavity, the mounting cavity being used to mount a retractor.

[0010] Optionally, the outer panel body of the outer panel is provided with a first connecting portion, the first inner panel includes a second connecting portion, at least a portion of the second connecting portion is relatively attached to at least a portion of the first connecting portion along the first direction, and the second connecting portion is welded to the first connecting portion.

[0011] Optionally, the outer panel body is provided with a mating part, at least a portion of which is in contact with at least a portion of the recessed part.

[0012] Optionally, the second inner plate is provided with a clearance hole, which is disposed opposite to at least a portion of the first connecting portion along the first direction.

[0013] Optionally, the number of clearance holes is multiple, and the multiple clearance holes are spaced apart on the second inner plate.

[0014] Optionally, the second inner panel includes a third connecting portion and a fourth connecting portion, the third connecting portion being connected to the outer panel, and the fourth connecting portion being used to connect to the sill beam.

[0015] Optionally, the first inner panel includes an upper inner panel and a lower inner panel connected to each other along a second direction. The upper inner panel is connected to the outer panel body of the outer panel. At least a portion of the lower inner panel is spaced apart from the outer panel body of the outer panel. The recessed portion is disposed on the lower inner panel.

[0016] Optionally, the lower inner plate further includes a lower inner plate body, the recessed portion includes a first arc-shaped portion and two extension portions, the two extension portions are arranged at an included angle and are respectively arranged on the upper and lower sides of the first arc-shaped portion, and the side of the extension portion away from the first arc-shaped portion is connected to the lower inner plate body.

[0017] Optionally, the B-pillar assembly further includes a retractor, the first inner panel is provided with a first mounting portion, the second inner panel is provided with a second mounting portion, and the retractor is fixedly connected to the first mounting portion and the second mounting portion.

[0018] Secondly, this application also discloses a vehicle body, including an upper side beam, a door sill beam, and a B-pillar assembly in any of the above embodiments;

[0019] The outer panel includes an upper connecting end and a lower connecting end that are opposite to each other along a second direction. The upper connecting end of the outer panel is connected to the upper side beam, and the lower connecting end of the outer panel is connected to the sill beam. The first inner panel and the second inner panel are disposed near the lower connecting end of the outer panel, and the second inner panel is connected to the sill beam.

[0020] Thirdly, this application also discloses a vehicle, including the B-pillar assembly or body as described in any of the above embodiments.

[0021] In this embodiment, the B-pillar assembly includes a first inner panel and a second inner panel disposed on the outer panel body. Since the first inner panel has a recessed portion facing the outer panel, when the second inner panel is connected to the outer panel, the second inner panel and the recessed portion enclose a mounting cavity for installing a retractor. Since the mounting cavity has an opening, the first inner panel does not need to have a hole. When the retractor is installed in the mounting cavity, the seat belt in the retractor can be retracted through the opening, avoiding the impact of a hole on the structural strength of the first inner panel. At the same time, when the second inner panel is connected to the outer panel, the overall rigidity of the B-pillar assembly is enhanced, ensuring the structural strength and rigidity of the B-pillar assembly. In the event of a side collision, the B-pillar assembly is less likely to break, ensuring the reliability and safety of the vehicle.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a partial schematic diagram of the B-pillar assembly in an embodiment of this application;

[0025] Figure 2 This is an exploded structural diagram of the B-pillar assembly in the embodiments of this application;

[0026] Figure 3 This is a schematic diagram of the outer panel and the first inner panel in an embodiment of this application.

[0027] Reference numerals: 10 - outer plate, 11 - outer plate body, 111 - first connecting part, 12 - mating part, 13 - upper connecting end of outer plate, 14 - lower connecting end of outer plate, 20 - first inner plate, 21 - recessed part, 211 - first arc-shaped part, 212 - extension part, 213 - second arc-shaped part, 22 - second connecting part, 23 - lower inner plate body, 24 - first mounting part, 201 - upper inner plate, 202 - lower inner plate, 30 - second inner plate, 31 - clearance hole, 32 - third connecting part, 33 - fourth connecting part, 34 - second mounting part, 40 - mounting cavity, 50 - retractor, 51 - first mounting hole, 52 - second mounting hole, Y - first direction, Z - second direction, X - third direction. Detailed Implementation

[0028] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] As the fundamental framework for ensuring occupant safety, the vehicle body's design rationality and the structural strength of its components directly determine the vehicle's safety performance under various collision conditions. The B-pillar, located between the front and rear doors, serves as the primary lateral load-bearing structure in the event of a side collision. It must withstand most of the impact force and absorb collision energy through its own deformation, while transferring the remaining energy to other body structures, such as the upper side beams and sill beams, thereby minimizing intrusion into the passenger compartment. Therefore, the structural strength of the B-pillar has a significant impact on the overall vehicle safety and reliability.

[0033] In vehicles, the retractor, as a core component of the seatbelt system, functions to retract the seatbelt to keep it neat during normal driving and, in emergencies such as collisions, to secure the seatbelt through a locking mechanism, preventing occupants from being thrown forward and protecting their safety. In related technologies, the retractors for the driver's and passenger's seatbelts are typically installed on the B-pillar inner panel, which requires clearance holes to expose the retractor for retraction. However, with advancements in vehicle safety technology and increased intelligence, the functions of retractors have become increasingly complex, integrating intelligent functions such as pre-tensioning, force limiting, and reversible tensioning to achieve more precise occupant protection. These complex functions have led to a gradual increase in the size of the retractor. To accommodate the installation of larger retractors, the clearance holes on the B-pillar inner panel need to be enlarged. Since the dimensions of the B-pillar in the length direction of the vehicle are usually limited to a certain extent to ensure the ease of vehicle entry and exit, increasing the size of the clearance hole will compress the sheet metal dimensions on both sides of the clearance hole of the B-pillar. This will reduce the structural strength of the inner panel of the B-pillar, making the inner panel of the B-pillar more prone to fracture failure during a collision, which will greatly reduce the safety performance of the vehicle.

[0034] Therefore, in order to improve the structural strength and rigidity of the B-pillar to ensure the side safety performance of the entire vehicle, this application provides a B-pillar assembly. For example... Figure 1 and Figure 2 As shown, the B-pillar assembly provided in this application embodiment includes: an outer panel 10, a first inner panel 20, and a second inner panel 30. The outer panel 10 includes an outer panel body 11 extending along a second direction Z. The first inner panel 20 is connected to the inner side of the outer panel body 11 and has a recessed portion 21 recessed toward the outer panel 10. The second inner panel 30 is disposed along a first direction Y on the side of the first inner panel 20 away from the outer panel 10 and is connected to the outer panel 10. The second inner panel 30 and the recessed portion 21 enclose a mounting cavity 40 with an opening, and the mounting cavity 40 is used to mount a retractor 50.

[0035] In this embodiment, the B-pillar assembly includes a first inner plate 20 and a second inner plate 30 disposed on the outer plate body 11 of the outer plate 10. Since the first inner plate 20 is provided with a recessed portion 21 that is recessed toward the outer plate 10, when the second inner plate 30 is connected to the outer plate 10, the second inner plate 30 and the recessed portion 21 enclose a mounting cavity 40 for mounting a retractor 50. Since the mounting cavity 40 has an opening, the first inner plate 20 does not need to have a hole. When the retractor 50 is installed in the mounting cavity 40, the seat belt in the retractor 50 can be retracted through the opening, avoiding the impact of the hole on the first inner plate 20 on its structural strength. At the same time, when the second inner plate 30 is connected to the outer plate 10, it enhances the overall rigidity of the B-pillar assembly, ensuring the structural strength and rigidity of the B-pillar assembly. In the event of a side collision, the B-pillar assembly is less likely to break, ensuring the reliability and safety of the vehicle.

[0036] In practical applications, the connection method between the second inner panel 30 and the first inner panel 20 and outer panel 10 can be one or more of the following, including but not limited to welding, bolting, and riveting. Among these, welding or riveting the second inner panel 30 to the first inner panel 20 and outer panel 10 provides higher stability and ensures the structural stability of the B-pillar assembly. Bolting the second inner panel 30 to the first inner panel 20 and outer panel 10 facilitates disassembly and adjustment, and this application does not impose specific limitations on this.

[0037] It should be noted that, in Figure 1 In the B-pillar assembly shown, the first direction Y is the width direction of the vehicle, the second direction Z is the height direction of the vehicle, and the third direction X is the length direction of the vehicle. Furthermore, it should be understood that the internal / external relationship between the outer panel 10 and the first inner panel 20 is determined based on the position of the vehicle's passenger compartment. In this embodiment, the outer panel body 11 has an inner side and an outer side that are opposite to each other along the first direction Y. The inner side is the side of the outer panel body 11 facing the passenger compartment, and the outer side is the side of the outer panel body 11 away from the passenger compartment. The first inner panel 20 is connected to the inner side of the outer panel body 11, meaning the first inner panel 20 is connected to the side of the outer panel body 11 facing the passenger compartment.

[0038] Optionally, the outer panel body 11 of the outer panel 10 is provided with a first connecting portion 111, and the first inner panel 20 includes a second connecting portion 22. At least a portion of the second connecting portion 22 is relatively fitted to at least a portion of the first connecting portion 111 along the first direction Y, and the second connecting portion 22 is welded to the first connecting portion 111. It can be understood that when the first inner panel 20 and the outer panel 10 are welded together, the connection strength between the two can be effectively guaranteed, and the connection stability between the first inner panel 20 and the outer panel 10 can be improved. This avoids abnormal noise or structural failure caused by loose connection between the first inner panel 20 and the outer panel 10, and avoids unexpected displacement or deformation of the recessed portion 21 caused by loose connection. It ensures the structural stability of the recessed portion 21 and the stability of the mounting cavity 40 formed by the recessed portion 21 and the second inner panel 30, and ensures that the retractor 50 in the mounting cavity 40 can operate stably and reliably.

[0039] Optionally, the second inner plate 30 is provided with a clearance hole 31, which is disposed opposite to at least a portion of the first connecting portion 111 along the first direction Y. The design of the clearance hole 31 facilitates the welding operation between the first inner plate 20 and the outer plate 10, and reduces the impact of assembly errors on the accuracy of the connection point.

[0040] In practical applications, the outer panel 10, the first inner panel 20, and the second inner panel 30 are independent structural components. During assembly, since the first inner panel 20 is connected to the outer panel 10, and the second inner panel 30 is connected to the side of the first inner panel 20 away from the outer panel 10, the first inner panel 20 needs to be assembled with the outer panel 10 first. During assembly, the first inner panel 20 and the outer panel 10 can be welded together first to form a whole, and then the second inner panel 30 can be connected to the first inner panel 20 and the outer panel 10. However, it should be understood that due to issues with processing and welding precision, each component... Errors between independent assembly steps are difficult to completely avoid. If the first inner plate 20 and the outer plate 10 are welded together as a whole, the relative positions between the first inner plate 20 and the outer plate 10 are fixed. When the second inner plate 30 is then connected to the outer plate 10 and the first inner plate 20, processing errors between components or operational errors in the first welding operation may cause the second inner plate 30 to be difficult to fully fit its preset position, thus affecting the assembly accuracy of the overall structure. In severe cases, the internal space of the mounting cavity 40 may not be able to fit the retractor 50. Therefore, in this embodiment, an avoidance hole 31 is provided on the second inner plate 30, which allows the outer plate 10 and the first inner plate 20 to be pre-assembled into their preset positions to achieve preliminary positioning. Figure 3As shown, the second inner plate 30 is then connected to the outer plate 10 and the first inner plate 20, and then the first inner plate 20 and the outer plate 10 are welded. During this process, at least a portion of the clearance hole 31 and the first connecting part 111 are opposite each other along the first direction Y. The clearance hole 31 can provide clearance space for components such as the electrode head of the welding clamp so that they can pass through and perform the welding operation between the second connecting part 22 of the first inner plate 20 and the first connecting part 111 of the outer plate 10, ensuring the accuracy of the welding position.

[0041] Optionally, there are multiple clearance holes 31, which are spaced apart on the second inner plate 30. Multiple clearance holes 31 can provide multiple welding points. Furthermore, the spaced arrangement of the clearance holes 31 allows for a smaller diameter of each individual clearance hole 31, thereby reducing the adverse effects of the opening on the structural strength and rigidity of the second inner plate 30. When designing the size of the clearance holes 31, while ensuring the electrode head can pass through, a certain amount of space can be reserved for the displacement of the electrode head in the third direction X, ensuring the convenience of the welding operation. In addition, the spacing also ensures the structural strength of the second inner plate 30 to a certain extent. For example, in the embodiments of this application, such as... Figure 1 , Figure 2 As shown, there are two clearance holes 31, which are spaced apart along the third direction X.

[0042] Optionally, the second inner panel 30 includes a third connecting part 32 and a fourth connecting part 33, the third connecting part 32 being connected to the outer panel 10, and the fourth connecting part 33 being used to connect to the sill beam.

[0043] In this embodiment, the second inner panel 30 is connected to both the outer panel 10 and the sill beam simultaneously via a third connecting part 32 and a fourth connecting part 33, ensuring the overall rigidity of the B-pillar assembly and its connection strength with the vehicle body. In specific applications, the sill beam, as part of the vehicle body structure, has a certain dimension in the third direction X. Since the B-pillar inner panel is a split structure including the first inner panel 20 and the second inner panel 30, its overall structural strength depends not only on the structural strength of individual components but also on the rigid connection between different components. Therefore, with the second inner panel 30 also connected to the sill beam via the fourth connecting part 33, the stability of the second inner panel 30 is higher. This multi-point connection structure improves the rigidity of the entire B-pillar assembly, optimizes the overall integrity of the B-pillar assembly and the vehicle body, and enhances the impact resistance and safety of the B-pillar assembly and the vehicle body.

[0044] In specific applications, the connection between the third connecting part 32 of the second inner plate 30 and the outer plate 10 includes, but is not limited to, one or more of welding, bolting, riveting, etc. Similarly, the connection between the fourth connecting part 33 and the sill beam also includes, but is not limited to, one or more of welding, bolting, riveting, etc.

[0045] Optionally, the first inner panel 20 includes an upper inner panel 201 and a lower inner panel 202 connected to each other along the second direction Z. The upper inner panel 201 is connected to the outer panel body 11 of the outer panel 10, and at least a portion of the lower inner panel 202 is spaced apart from the outer panel body 11 of the outer panel 10. A recess 21 is provided in the lower inner panel 202. In this way, at least a portion of the lower inner panel 202 is spaced apart from the outer panel 10, thereby providing space for the recess 21. This structure can meet the lightweight design requirements of the structure.

[0046] Specifically, the upper inner panel 201 has a higher degree of flatness than the lower inner panel 202, so as to form a better fit with the outer panel 10. The lower inner panel 202 is an irregularly shaped structure with concave and convex designs. In this way, the first inner panel 20 as a whole is an irregularly shaped plate structure with a relatively small thickness. Compared with the method of carving out a pit to form a recess 21 in a solid structure, this plate structure reduces the thickness and weight of the first inner panel 20, thereby reducing the weight of the B-pillar assembly and improving the overall vehicle lightweighting.

[0047] Optionally, the outer panel 10 is provided with a mating portion 12, at least a portion of which is in contact with at least a portion of the recessed portion 21. In this embodiment, the outer panel 10 is provided with a mating portion 12, and at least a portion of the mating portion 12 is in contact with the recessed portion 21. When the B-pillar is impacted, the two can support each other, improving the impact resistance of the B-pillar assembly. In specific applications, the mating portion 12 is provided on the outer panel body 11 of the outer panel 10. The design of the mating portion 12 makes the outer panel body 11 form an uneven irregular surface, thereby adapting to the structure of the recessed portion 21. In this way, the contact area between the outer panel 10 and the recessed portion 21 of the first inner panel 20 can be guaranteed.

[0048] like Figure 2 As shown, the lower inner panel 202 also includes a lower inner panel body 23. The recessed portion 21 includes a first arcuate portion 211 and two extension portions 212. The two extension portions 212 are arranged at an included angle and are respectively disposed on the upper and lower sides of the first arcuate portion 211. The side of the extension portion 212 away from the first arcuate portion 211 is connected to the lower inner panel body 23. The design of the first arcuate portion 211 reduces the stress concentration of the recessed portion 21, improves the reliability of the first inner panel 20, extends the service life of the first inner panel 20, and also reduces the risk of stress concentration and damage to the outer panel 10.

[0049] In the embodiments of this application, such as Figure 2As shown, two extensions 212 are arranged opposite each other along the second direction Z, and each extension 212 has a certain angle with the horizontal plane. The two extensions 212 are connected by a first arc-shaped part 211 to form an angle, thereby forming a cavity with a certain recessed space on the side of the first inner plate 20 away from the outer plate 10. This allows the second inner plate 30, after being connected to the outer plate 10 and the first inner plate 20, to form a mounting cavity 40 for mounting the retractor 50 together with this cavity. It should be noted that the presence of the first arc-shaped part 211 allows the first inner plate 20 to disperse the impact force along the arc direction when subjected to lateral impact, avoiding local stress concentration, improving the structural safety of the first inner plate 20, and extending its service life. Furthermore, it should be understood that since the B-pillar assembly is the main load-bearing structure when a vehicle is subjected to a side impact, the impact force from the side of the vehicle will first act on the outer panel 10 and then be transmitted to the first inner panel 20. If there are sharp corners between the two extensions 212 of the first inner panel 20, stress concentration can easily occur in the outer panel 10 upon impact, causing damage and affecting the structural strength of the outer panel 10, thus reducing its impact resistance. Therefore, by designing the first arc-shaped portion 211, the stress concentration problem caused by the first inner panel 20 to the outer panel 10 can be reduced, avoiding damage to the outer panel 10.

[0050] Furthermore, the protrusion also includes a second arcuate portion 213, which connects the extension 212 and the lower inner plate body 23. It is understood that, similar to the first arcuate portion 211, the presence of the second arcuate portion 213 reduces stress concentration at the connection point between the protrusion and the lower inner plate body 23, improving the structural safety and reliability of the first inner plate 20. In the event of a lateral impact, the impact force on the protrusion can be dispersed to the lower inner plate body 23.

[0051] Optionally, the B-pillar assembly also includes a retractor 50, such as Figures 1 to 2 As shown, the first inner panel 20 is provided with a first mounting portion 24, and the second inner panel 30 is provided with a second mounting portion 34. The retractor 50 is fixedly connected to the first mounting portion 24 and the second mounting portion 34. In this way, the retractor 50 is simultaneously connected to the first mounting portion 24 and the second mounting portion 34, so as to connect with both the first inner panel 20 and the second inner panel 30 at the same time. This ensures the connection stability between the retractor 50 and the B-pillar assembly and reduces the risk of connection failure due to loosening of the connection on one side.

[0052] In specific applications, the retractor 50 is connected to the first inner plate 20 and the second inner plate 30 by bolts. Bolt holes can be provided on both the first mounting part 24 and the second mounting part 34. The retractor 50 is provided with a first mounting hole 51 and a second mounting hole 52. One bolt passes through the first mounting hole 51 and is fixed to the bolt hole on the first mounting part 24, and another bolt passes through the second mounting hole 52 and is fixed to the bolt hole on the second mounting part 34. This bolt connection method allows the retractor 50 to be detachably connected to the mounting cavity 40, thereby facilitating disassembly and replacement and improving the convenience of maintenance operations during the later use of the retractor 50.

[0053] In summary, the B-pillar assembly provided in this application embodiment may include at least the following advantages:

[0054] In this embodiment, the B-pillar assembly includes a first inner panel and a second inner panel disposed on the outer panel body. Since the first inner panel has a recessed portion facing the outer panel, when the second inner panel is connected to the outer panel, the second inner panel and the recessed portion enclose a mounting cavity for installing a retractor. Furthermore, since the mounting cavity has an opening, the first inner panel does not need to have a hole. When the retractor is installed in the mounting cavity, the seat belt in the retractor can be wound up through the opening, avoiding the impact of a hole on the structural strength of the first inner panel. At the same time, when the second inner panel is connected to the outer panel, the overall rigidity of the B-pillar assembly is enhanced, ensuring the structural strength and rigidity of the B-pillar assembly. In the event of a side collision, the B-pillar assembly is less likely to break, ensuring the reliability and safety of the vehicle.

[0055] This application embodiment also provides a vehicle body, including an upper side beam, a sill beam, and a B-pillar assembly as described in any of the above embodiments; the outer panel 10 includes an upper connecting end 13 and a lower connecting end 14 of the outer panel that are opposite to each other along the second direction Z, the upper connecting end 13 of the outer panel is connected to the upper side beam, the lower connecting end 14 of the outer panel is connected to the sill beam, the first inner panel 20 and the second inner panel 30 are disposed near the lower connecting end 14 of the outer panel, and the second inner panel 30 is connected to the sill beam.

[0056] The upper beam is the top structure of the vehicle body, and the sill beam is the bottom structure of the vehicle body. The sill beam has a certain size in the third direction X. Since the inner panel of the B-pillar in this embodiment is a split structure and includes a first inner panel 20 and a second inner panel 30, its overall structural strength is not only related to the structural strength of individual components, but also to the rigid connection between different components. Therefore, when the second inner panel 30 is also connected to the sill beam, the stability of the second inner panel 30 is higher. This multi-point connection structure improves the rigidity of the entire B-pillar assembly, optimizes the integrity of the B-pillar assembly and the vehicle body, and improves the impact resistance and safety of the B-pillar assembly and the vehicle body.

[0057] This application also provides a vehicle, including the B-pillar assembly or body as described in any of the above embodiments.

[0058] It should be noted that in the embodiments of this application, the structure of the B-pillar assembly or the body is the same as that of the B-pillar assembly or the body in any of the above embodiments, and its beneficial effects are also similar, so it will not be described in detail here.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A B-pillar assembly, characterized in that, include: The outer panel (10) includes an outer panel body (11) extending along a second direction (Z); The first inner plate (20) is connected to the inner side of the outer plate body (11) and is provided with a recessed portion (21) that is recessed toward the outer plate (10); And a second inner plate (30) is disposed along the first direction (Y) on the side of the first inner plate (20) away from the outer plate (10) and connected to the outer plate (10). The second inner plate (30) and the recess (21) enclose to form an installation cavity (40) with an opening. The installation cavity (40) is used to install the retractor (50).

2. The B-pillar assembly according to claim 1, characterized in that, The outer panel body (11) of the outer panel (10) is provided with a first connecting part (111), and the first inner panel (20) includes a second connecting part (22). At least a portion of the second connecting part (22) is in contact with at least a portion of the first connecting part (111) along the first direction (Y), and the second connecting part (22) is welded to the first connecting part (111).

3. The B-pillar assembly according to claim 2, characterized in that, The outer panel body (11) is provided with a mating part (12), at least a portion of which is in contact with at least a portion of the recess (21).

4. The B-pillar assembly according to claim 2, characterized in that, The second inner plate (30) is provided with a clearance hole (31), which is disposed opposite to at least a portion of the first connecting part (111) along the first direction (Y).

5. The B-pillar assembly according to claim 1, characterized in that, The second inner plate (30) includes a third connecting part (32) and a fourth connecting part (33), the third connecting part (32) being connected to the outer plate (10), and the fourth connecting part (33) being used to connect to the sill beam.

6. The B-pillar assembly according to any one of claims 1 to 5, characterized in that, The first inner plate (20) includes an upper inner plate (201) and a lower inner plate (202) connected to each other along a second direction (Z). The upper inner plate (201) is connected to the outer plate body (11) of the outer plate (10). At least a portion of the lower inner plate (202) is spaced apart from the outer plate body (11) of the outer plate (10). The recess (21) is provided on the lower inner plate (202).

7. The B-pillar assembly according to claim 6, characterized in that, The lower inner plate (202) includes a lower inner plate body (23), and the recessed portion (21) includes a first arc-shaped portion (211) and two extension portions (212). The two extension portions (212) are arranged at an included angle and are respectively arranged on the upper and lower sides of the first arc-shaped portion (211). The side of the extension portion (212) away from the first arc-shaped portion (211) is connected to the lower inner plate body (23).

8. The B-pillar assembly according to claim 1, characterized in that, The B-pillar assembly also includes a retractor (50), the first inner panel (20) is provided with a first mounting part (24), the second inner panel (30) is provided with a second mounting part (34), and the retractor (50) is fixedly connected to the first mounting part (24) and the second mounting part (34).

9. A vehicle body, characterized in that, Includes the top beam, the sill beam, and the B-pillar assembly as described in any one of claims 1 to 8; The outer panel (10) includes an upper connecting end (13) and a lower connecting end (14) of the outer panel that are opposite to each other along the second direction (Z). The upper connecting end (13) of the outer panel is connected to the upper side beam, and the lower connecting end (14) of the outer panel is connected to the sill beam. The first inner panel (20) and the second inner panel (30) are disposed close to the lower connecting end (14) of the outer panel, and the second inner panel (30) is connected to the sill beam.

10. A vehicle, characterized in that, Includes the B-pillar assembly as described in any one of claims 1 to 8, or the vehicle body as described in claim 9.

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