Integrated inner door ring structure, side wall inner plate assembly and vehicle

Abstract

The utility model relates to an integrated inner door ring structure, a side wall inner plate assembly and a vehicle, and relates to the technical field of automobile bodies. The integrated inner door ring structure comprises an A-column inner plate, a B-column inner plate and a front doorsill beam, and the A-column inner plate, the B-column inner plate and the front doorsill beam are sequentially connected end to end and integrally formed. A lap joint part is arranged at the lower end of the inner door ring structure; the lap joint part is located on the side, away from the A-column inner plate, of the B-column inner plate. A connecting section connected with the rear doorsill beam is arranged on the lap joint part, and the rear doorsill beam can be connected with any position on the connecting section. According to the integrated inner door ring structure, the A-column inner plate, the B-column inner plate and the front doorsill beam are integrally formed, and the lap joint part is arranged at the lower end of the inner door ring structure, so that the rear doorsill beam can be selectively connected with any position on the lap joint part according to actual needs, the firmness of the whole inner door ring structure can be improved, and the service life of the inner door ring structure is prolonged. And the universality of the front section of the side wall inner plate can be improved, so that the requirements of different vehicle types are met.

Description

Technical Field

[0001] This application relates to the field of automotive body technology, and in particular to an integrated inner door ring structure, a side inner panel assembly, and a vehicle. Background Technology

[0002] The front section of the side inner panel is an important component of the front interior of the vehicle body. It plays a crucial reinforcing role in the vehicle's frame, effectively improving overall body rigidity and collision safety. It also provides installation support for internal components such as A / B pillar guards, seat belts, roof, armrests, and wiring harnesses. Its structural design and manufacturing process directly affect the vehicle's lightweight level, production efficiency, and overall vehicle performance.

[0003] However, the existing side panel inner section mostly adopts a split structure, with each part assembled by welding or bolting. This results in a large number of weld points and complex assembly processes, affecting production efficiency. In addition, the split structure has a large number of overlapping joints, which is not conducive to vehicle body lightweighting. Moreover, the commonality rate of parts is low. For models with similar shapes but different wheelbases and dimensions, each part needs to be redesigned and developed, which not only increases development costs but also increases the difficulty of production management.

[0004] Therefore, it is of great significance to design a front section of the side inner panel that can improve the versatility of parts while ensuring structural strength, so as to adapt to the needs of different vehicle models. Utility Model Content

[0005] This application addresses, to at least some extent, one of the technical problems in the related art.

[0006] Therefore, this application aims to provide an integrated inner door ring structure, a side panel assembly, and a vehicle. By integrally molding the A-pillar inner panel, B-pillar inner panel, and front sill beam, the front section of the side panel is designed as an integrated inner door ring structure. An overlapping part is provided at the lower end of the inner door ring structure, so that the rear sill beam can be connected to any position on the overlapping part according to actual needs, thereby improving the versatility of the front section of the side panel and adapting to the needs of different vehicle models.

[0007] To achieve the above objectives, in a first aspect, this application provides an integrated inner door ring structure, including an inner A-pillar panel, an inner B-pillar panel, and a front door sill beam, wherein the inner A-pillar panel, the inner B-pillar panel, and the front door sill beam are connected end to end and integrally formed.

[0008] The lower end of the inner door ring structure is provided with an overlapping part, which is located on the side of the inner panel of the B-pillar away from the inner panel of the A-pillar; the overlapping part is provided with a connecting section that connects to the rear door sill beam, and the rear door sill beam can be connected to any position on the connecting section.

[0009] In the technical solution, by designing the A-pillar inner panel, B-pillar inner panel, and front sill beam as a single-piece inner door ring structure, not only can the number of parts be reduced, but the robustness of the connection between the parts can also be increased. By setting an overlap part in the inner door ring structure and setting a connecting section in the overlap part, the rear sill beam can be connected to any position on the connecting section. This not only facilitates the connection between the rear sill beam and the inner door ring structure, but also allows the connection position of the rear sill beam with the overlap part to be adjusted according to actual needs, improving the versatility of the inner door ring structure and thus adapting to the needs of different vehicle models.

[0010] In some embodiments of this application, one end of the connecting segment is located at the lower end of the inner panel of the B-pillar, and the other end of the connecting segment is located in a direction away from the inner panel of the B-pillar; the length of the connecting segment can be cut according to the connection position of the rear door sill beam.

[0011] In the technical solution, by cutting and adjusting the length of the connecting section, the rear door sill beam and the inner door ring structure can be overlapped at different positions, thereby meeting the size and assembly requirements of different models, improving the versatility of the inner door ring structure and its adaptability to different models, and reducing the types of parts and development costs.

[0012] In some embodiments of this application, a boss is provided on the overlapping part, and the side of the boss away from the connecting section is on the same plane as the side of the rear door sill beam away from the inner door ring structure.

[0013] And / or, the overlapping part is provided with a mounting part, which is located at the top of the connecting section; the mounting part is used to install the door sill trim and / or the B-pillar inner panel trim.

[0014] In this technical solution, by setting up a boss, the components that mate with the inner door ring structure and the rear door sill beam no longer require special machining of the boss surface, reducing assembly difficulty and improving assembly efficiency. By setting up an installation section, installation positions are provided for the door sill trim and the B-pillar inner panel trim, making trim installation more standardized and convenient.

[0015] In some embodiments of this application, at least two bosses are provided, and the two bosses are arranged along the length direction of the connecting segment;

[0016] And / or, at least two mounting parts are provided, and the two mounting parts are arranged along the length of the connecting section.

[0017] In the technical solution, by arranging multiple bosses and mounting parts along the length of the connecting section, even after the connecting section is cut to meet the needs of different vehicle models, it is still possible to ensure that there are bosses flush with the rear door sill beam and mounting parts available for trim panel installation. This ensures the stability and feasibility of the connection and assembly of the inner door ring structure with other components under different conditions, further improving the versatility and adaptability of the structure.

[0018] In some embodiments of this application, the middle portion of the inner panel of the B-pillar is provided with a fault-prevention part, and an identification hole is opened in the fault-prevention part.

[0019] In the technical solution, by setting up a mistake-proofing part and opening an identification hole in the mistake-proofing part, the problem of easy confusion due to the similar structure of the inner door ring when producing multiple models on the same production line is effectively solved. The differentiated setting of the identification hole enables accurate differentiation, avoids the occurrence of misassembly, improves production accuracy and efficiency, and reduces rework costs caused by assembly errors.

[0020] In some embodiments of this application, the inner panel of the A-pillar includes an upper beam connecting section, a main body section, and a front sill beam connecting section, which are arranged sequentially from top to bottom;

[0021] The inner door ring structure is provided with a mating part, which is located on the upper beam connection section; the mating part is used to install the wire harness clip and / or handle bracket.

[0022] In the technical solution, a mating part is set up on the upper beam connection section of the A-pillar to facilitate the installation of wire harness clips and / or handle brackets.

[0023] Secondly, this application provides a side panel assembly, comprising:

[0024] The front section of the side panel is the aforementioned integrated inner door ring structure; the connecting section is provided with a first position and a second position, with the first position being closer to the B-pillar inner panel than the second position;

[0025] When the rear sill beam is connected to the connecting section in the first position, the length of the inner side panel assembly is L1. When the rear sill beam is connected to the connecting section in the second position, the length of the inner side panel assembly is L2, where L2 is greater than L1.

[0026] In the technical solution, by setting the front section of the side inner panel as an integrated inner door ring structure, the rear door sill beam can be connected to different positions of the connecting section. This allows for flexible adaptation to the different requirements of different vehicle models for the overall length of the side inner panel, improving the versatility of the side inner panel assembly. It also reduces the development cost and complexity of corresponding parts for different vehicle models, thereby improving production efficiency.

[0027] In some embodiments of this application, an inner plate of the upper beam is also included. The inner plate of the upper beam is located above the rear door sill beam, connected to the upper end of the inner door ring structure, and located on the side of the inner plate of the B-pillar away from the inner plate of the A-pillar.

[0028] In the technical solution, the upper side beam inner plate is set above the rear door sill beam and connected to the upper end of the inner door ring structure. It is located on the side of the B-pillar inner plate away from the A-pillar inner plate, so that the upper side beam inner plate can effectively disperse external forces to the inner door ring structure and the rear door sill beam, enhancing the vehicle's side impact resistance. At the same time, the compact layout optimizes the use of side space, allows each component to share the force collaboratively, reduces stress concentration, and improves the overall rigidity and durability of the vehicle, ensuring safety while ensuring the long-term stable operation of the vehicle.

[0029] In some embodiments of this application, a front crossbeam connecting plate for the roof is also included, which is connected to the inner panel of the A-pillar and located at the upper end of the inner door ring structure.

[0030] In the technical solution, the front crossbeam connecting plate of the roof provides a connecting component for the front crossbeam of the roof, which facilitates the installation and overlap of the front crossbeam of the roof. At the same time, it can effectively transmit the force from the front crossbeam of the roof, optimize the force transmission path of the vehicle roof, enhance the force transmission performance of the upper part of the A-pillar inner panel, and improve the mechanical performance and stability of the overall vehicle structure.

[0031] Thirdly, this application provides a vehicle including the aforementioned side panel assembly.

[0032] In the technical solution, the integrated inner door ring structure has a high degree of integration and good overall strength and mechanical properties, which helps to improve the stability and safety of the vehicle body structure; it reduces the development of stamping dies and welding processes, eliminates welding redundancy, and effectively reduces the vehicle production and manufacturing costs.

[0033] As can be seen from the above technical solutions, 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

[0034] Figure 1 This is a structural schematic diagram of an integrated inner door ring structure according to an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the integrated inner door ring structure according to the embodiments of this application when the connecting section is not cut off;

[0036] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0037] Figure 4 yes Figure 2 Enlarged view of a section at point B in the middle;

[0038] Figure 5 This is a schematic diagram of the integrated inner door ring structure according to an embodiment of this application after the connecting section has been cut off;

[0039] Figure 6 yes Figure 5 Enlarged view of a section at point C;

[0040] Figure 7 This is a schematic diagram of the structure when the inner door ring structure is connected to the long axis of the rear door sill beam according to the embodiment of this application;

[0041] Figure 8 yes Figure 7 Enlarged view of a section at point D;

[0042] Figure 9 yes Figure 7 Enlarged view of a section at point E in the middle;

[0043] Figure 10 This is a schematic diagram of the structure when the inner door ring structure is connected to the short axis of the rear door sill beam according to the embodiment of this application;

[0044] Figure 11 yes Figure 10 Enlarged view of a section at point F in the middle;

[0045] Figure 12 yes Figure 10 Enlarged view of a section at point G.

[0046] In the above diagrams: 1. Inner door ring structure; 2. Rear door sill beam;

[0047] 11. Inner panel of A-pillar; 12. Inner panel of B-pillar; 13. Front door sill beam; 14. Overlap joint;

[0048] 101. Connecting part; 102. Fitting part;

[0049] 111. Upper beam connection section; 112. Main body section; 113. Front sill beam connection section;

[0050] 141. Connecting section; 142. Boss; 143. Mounting part;

[0051] 121. Error-proofing part; 1211. Identification hole;

[0052] 1421. First boss; 1422. Second boss;

[0053] 1431. First installation section; 1432. Second installation section. Detailed Implementation

[0054] 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.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0059] The front section of the side panel is an important component of the front interior of the vehicle body. It typically includes the A-pillar inner panel, the front crossbeam connecting plate of the roof, the upper side beam inner panel, the B-pillar inner panel, the front sill beam, and other structures. The front section of the side panel plays an important reinforcing role in the vehicle body frame, effectively improving the overall rigidity of the vehicle body and collision safety. At the same time, it provides installation support for internal components such as A / B pillar guards, seat belts, roof, armrests, and wiring harnesses.

[0060] The A-pillar inner panel is a crucial supporting component at the front of the vehicle. Connecting to the windshield frame and engine compartment, it helps maintain the overall rigidity and stability of the vehicle body. In the event of a collision, it effectively disperses and absorbs impact forces, reducing injury to passengers. The A-pillar inner panel also provides mounting points for components such as door hinges, rearview mirrors, and seat belts, ensuring their secure installation and proper functioning.

[0061] The B-pillar inner panel, located in the center of the vehicle body, is a crucial component connecting the roof, floor, and doors. It enhances the side strength of the vehicle body, absorbing the forces of side impacts. The B-pillar inner panel provides support and anchor points for the doors, ensuring their installation precision and stability. Seatbelt anchor points and interior trim components such as interior trim panels and window control switches are typically installed on the B-pillar inner panel.

[0062] The front sill beam, typically located below the front door, is a crucial structural component connecting the lower sections of the A-pillar and B-pillar inner panels. It extends along the side of the vehicle from the front door towards the rear. In the event of a small offset frontal collision, the front sill beam works in conjunction with the lower sections of the A-pillar inner panels and other structures to effectively absorb and disperse collision energy, reducing wheel intrusion into the passenger compartment and protecting the safety of the occupants.

[0063] The main function of the roof front crossbeam connecting plate is to connect the roof to the front structure of the vehicle body, enhancing the strength and stability of the roof. The upper beam inner plate is an important structural component of the upper side of the vehicle body, connecting with components such as the A-pillar, B-pillar, C-pillar, and roof to form a closed ring structure. This effectively enhances the rigidity of the vehicle side, improves the vehicle's resistance to deformation during side collisions, and protects the safety of passengers inside the vehicle.

[0064] The upper beam inner panel provides installation support for the window glass, ensuring the installation accuracy and stability of the window glass. At the same time, it installs sealing strips to ensure the window's airtightness, preventing rainwater, dust, and other substances from entering the vehicle and improving the comfort of the interior.

[0065] Traditionally, the front section of the side panel inner section often adopts a split structure. Components such as the A-pillar inner panel, the front crossbeam connecting plate of the roof, the upper side beam inner panel, the B-pillar inner panel, and the sill beam are assembled by welding or bolting. This results in a large number of weld points and a complex assembly process, reducing production efficiency. Furthermore, this split design of the front section of the side panel inner section, due to the numerous overlapping joints, is not conducive to vehicle weight reduction. Moreover, due to structural limitations, some areas (such as the connections between the upper and lower sections of the A-pillar inner panel and the lower and upper sections of the B-pillar inner panel) are difficult to spot weld and require bolt fixing, which can easily lead to insufficient connection strength and uneven distribution of influence.

[0066] In existing technologies, although some side panel inner sections adopt an integrated door ring structure, making parts such as the A-pillar inner panel, the roof front crossbeam connecting plate, the upper side beam inner panel, the B-pillar inner panel, and the front sill beam integrally formed to reduce the number of parts and welding processes and improve assembly efficiency, the integrated door ring structure in existing technologies has a low commonality rate. For models with different wheelbases or sizes on the same platform, redesign is required, which not only increases development costs but also increases the difficulty of production management.

[0067] Based on this, this application proposes an integrated inner door ring structure 1, a side inner panel assembly, and a vehicle. By integrally molding the A-pillar inner panel 11, the B-pillar inner panel 12, and the front sill beam 13, the front section of the side inner panel is designed as an integrated inner door ring structure 1. An overlapping part 14 is provided at the lower end of the inner door ring structure 1, so that the rear sill beam 2 can be connected to any position on the overlapping part 14 according to actual needs, thereby improving the versatility of the front section of the side inner panel and adapting to the needs of different vehicle models.

[0068] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0069] As attached Figures 1 to 2 As shown in an illustrative embodiment of the integrated inner door ring structure 1 of this application, the integrated inner door ring structure 1 includes an A-pillar inner panel 11, a B-pillar inner panel 12, and a front door sill beam 13. The A-pillar inner panel 11, the B-pillar inner panel 12, and the front door sill beam 13 are connected end to end and integrally formed. The lower end of the inner door ring structure 1 is provided with an overlapping part 14. The overlapping part 14 is located on the side of the B-pillar inner panel 12 away from the A-pillar inner panel 11. The overlapping part 14 is provided with a connecting section 141 that connects to the rear door sill beam 2. The rear door sill beam 2 can be connected to any position on the connecting section 141.

[0070] In the aforementioned integrated inner door ring structure 1, by designing the A-pillar inner panel 11, B-pillar inner panel 12, and front sill beam 13 as an integrally formed inner door ring structure 1, not only can the number of parts be reduced, but the robustness of the connection between the parts can also be increased. By providing an overlapping part 14 in the inner door ring structure 1 and a connecting section 141 in the overlapping part 14, the rear sill beam 2 can be connected to any position on the connecting section 141. This not only facilitates the connection between the rear sill beam 2 and the inner door ring structure 1, but also allows the rear sill beam 2 to adjust its connection position with the overlapping part 14 according to actual needs, thereby improving the versatility of the inner door ring structure 1 and adapting to the needs of different vehicle models.

[0071] In some embodiments, the integrated inner door ring structure 1 adopts integrated thermoforming laser welding inner door ring technology.

[0072] It should be noted that the rear sill beam 2 is located below the rear door of the vehicle, connecting the rear door, rear fender, and floor. In the event of a rear or side collision, the rear sill beam 2 acts as a buffer and absorbs energy, reducing injury to rear passengers and providing them with safety protection. The rear sill beam 2 provides the mounting base for the rear door hinges, door locks, and other components.

[0073] like Figure 1 and Figure 2 As shown, the lower end of the inner panel 11 of the A-pillar is connected to one end of the front sill beam 13 along its length, the other end of the front sill beam 13 along its length is connected to the lower end of the inner panel 12 of the B-pillar, and the upper end of the inner panel 12 of the B-pillar is connected to the upper end of the inner panel 11 of the A-pillar; at least a portion of the inner panel 11 of the A-pillar and the inner panel 12 of the B-pillar are arranged opposite each other along the length of the front sill beam 13, and at least a portion of the upper end of the inner panel 11 of the A-pillar and the front sill beam 13 are arranged opposite each other along the setting direction of the inner panel 12 of the B-pillar.

[0074] like Figure 2 As shown, the inner panel 11 of the A-pillar includes an upper beam connecting section 111, a main body section 112, and a front sill beam connecting section 113, which are arranged sequentially from top to bottom. The end of the upper beam connecting section 111 away from the main body section 112 is connected to the upper beam, and the bottom of the upper end of the upper beam connecting section 111 is connected to the upper end of the inner panel 12 of the B-pillar. The front sill beam connecting section 113 is connected to the front sill beam 13. The main body section 112 and the inner panel 12 of the B-pillar are arranged opposite each other along the length direction of the front sill beam 13.

[0075] In this embodiment, for ease of description, the length direction of the front door sill beam 13 is referred to as the front-rear direction of the inner door ring structure 1, wherein the inner plate 11 of the A-pillar is located at the front end of the inner door ring structure 1, and the overlapping part 14 is located at the rear end of the inner door ring structure 1.

[0076] like Figure 1 and Figure 2As shown, the lower end of the inner panel 12 of the B-pillar has a rounded corner structure on the side away from the inner panel 11 of the A-pillar. The front door sill beam 13 is connected to the lower end of the inner panel 12 of the B-pillar facing the inner panel 11 of the A-pillar. One end of the connecting section 141 is located at the root of the rounded corner at the lower end of the inner panel 12 of the B-pillar, and the other end of the connecting section 141 is set in a direction away from the inner panel 12 of the B-pillar, so that the connecting section 141 is set in the front-back direction of the inner door ring structure 1.

[0077] The connecting section 141 is set along the direction from the inner panel 11 of the A-pillar to the inner panel 12 of the B-pillar, that is, the connecting section 141 is set along the front and rear direction of the inner door ring structure 1; the length of the connecting section 141 can be cut according to the connection position of the rear door sill beam 2 so that the size of the overlapping area between the connecting section 141 and the rear door sill beam 2 is within a suitable range, so as to avoid adverse consequences caused by the connecting section 141 being too long and the overlapping area between the connecting section 141 and the rear door sill beam 2 being too large.

[0078] In some embodiments, the rear sill beam 2 and the overlapping portion 14 are connected by welding. The rear sill beam 2 and the connecting section 141 need to overlap and be welded together within a certain range to meet the strength requirements of practical applications.

[0079] For ease of description, the overlapping area between the rear sill beam 2 and the connecting section 141 is referred to as the overlap area between the rear sill beam 2 and the connecting section 141, and the size of the overlap area is referred to as the overlap amount.

[0080] When the length of the connecting section 141 is too long, the overlap between the rear sill beam 2 and the connecting section 141 is too large, resulting in excessive overlap. This not only increases the welding workload, connection cost, and connection efficiency, but also easily affects the connection between the rear sill beam 2 and other components. Therefore, when the length of the connecting section 141 is too long, the excess connecting section 141 can be cut off, while ensuring the overlap between the connecting section 141 and the rear sill beam 2. This not only ensures the connection strength between the rear sill beam 2 and the inner door ring structure 1, but also avoids the increased welding difficulty and reduced welding efficiency caused by an excessively long connecting section 141.

[0081] like Figure 3 As shown, the connecting section 141 is provided with a boss 142. The side of the boss 142 away from the connecting section 141 and the side of the rear door sill beam 2 away from the inner door ring structure 1 are located on the same plane, so as to facilitate the overlap of other components with the boss 142 and / or the rear door sill beam 2.

[0082] For ease of description, the side of the boss 142 away from the connecting section 141 is called the boss plane, and the side of the rear door sill beam 2 away from the inner door ring structure 1 is called the rear door sill beam plane.

[0083] In practical applications, the boss 142 is usually overlapped with the floor, and the plane of the boss and the plane of the rear door sill beam are located on the same plane, so that the plane of the boss and the plane of the rear door sill beam are flush. This can absorb the thickness difference of the rear door sill beam 2, so that the edge of the floor is a straight line, thereby achieving a smooth connection between the boss 142 and the floor.

[0084] When the connecting section 141 is cut to meet actual needs, in order to ensure that the remaining connecting section 141 still has protrusions 142 that can be flush with the rear door sill beam 2, in some embodiments, at least two protrusions 142 are provided. At least two protrusions 142 are arranged along the setting direction of the connecting section 141, and the side of the two protrusions 142 away from the connecting section 141 is located on the same plane, so that the rear door sill beam 2 can be flush with the protrusions 142 provided on the remaining connecting section 141, thereby realizing the connection between the floor and the connecting section 141.

[0085] When the length of the connecting section 141 is large, the rear door sill beam 2 is flush with the top surface of the boss 142 away from the inner panel 12 of the B-pillar; when the length of the connecting section 141 is small, since the boss 142 away from the inner panel 12 of the B-pillar is cut off, the rear door sill beam 2 is flush with the side of the boss 142 near the inner panel 12 of the B-pillar away from the connecting section 141.

[0086] like Figure 3 As shown, the overlapping portion 14 is provided with a mounting portion 143, which is located at the top of the connecting section 141. The mounting portion 143 is used to install the door sill trim and / or the B-pillar inner panel trim. At least two mounting portions 143 are provided, and at least two mounting portions 143 are arranged along the setting direction of the connecting section 141. When the length of the connecting section 141 is long, the door sill trim and the B-pillar inner panel trim are respectively connected to different mounting portions 143. The door sill trim is connected to the mounting portion 143 away from the B-pillar inner panel 12, while the lower interior trim of the B-pillar inner panel 12 is connected to the mounting portion 143 close to the B-pillar inner panel 12. When the length of the connecting section 141 is shortened due to cutting, the mounting portion 143 away from the B-pillar inner panel 12 is cut off, and the door sill trim and the B-pillar inner panel trim are respectively connected to the mounting portion 143 close to the B-pillar inner panel 12.

[0087] like Figure 4 As shown, the inner door ring structure 1 is provided with a mating part 102, which is located on the upper beam connecting section 111. The mating part 102 is used to install the wire harness clip and / or the handle bracket. The mating part 102 is defined by forming a mating surface. The width of the mating surface S≥26mm, so that the mating surface can meet both the wire harness clip engagement and the width requirement of the handle bracket mounting surface. The length of the mating surface D≥45mm, so that the mating surface can simultaneously install the wire harness handle bracket and the wire harness clip.

[0088] In some embodiments, two mating parts 102 are provided, and the two mating parts 102 are arranged along the setting direction of the upper beam connecting section 111, and the mating surfaces of the two mating parts 102 are located on the same plane, so as to realize the commonality of the left and right handle brackets.

[0089] The mating part 102 is provided with mounting holes, which are set through the mating surface to facilitate the wiring harness to pass through the mounting holes for routing.

[0090] In some embodiments, the mounting holes are produced by laser cutting. Compared with traditional punching processes, laser-cut holes can eliminate the need for punch development and are more conducive to localized design differentiation.

[0091] In practical applications, the materials of the A-pillar inner panel 11, the B-pillar inner panel 12, and the front door sill beam 13 are not exactly the same. Therefore, when producing the inner door ring structure 1, the plates used to form the A-pillar inner panel 11, the plates used to form the B-pillar inner panel 12, and the plates used to form the front door sill beam 13 are first laser-welded together, and then the assembled plates are stamped to form an integrated inner door ring structure 1.

[0092] It should be noted that, due to mold limitations, the thickness of the inner door ring structure 1 after stamping cannot be adjusted. Since different vehicle models have different strength requirements for the inner door ring structure 1, in some embodiments of this application, when the thickness of the inner door ring structure 1 is the same, the material of each part of the sheet metal is adjusted to meet the strength requirements of different vehicle models. For example, for long-wheelbase models, the overall size and weight are large, and compared to smaller models, the body strength needs to be higher under the same performance requirements. In this case, differentiated design can be achieved by adjusting the material of each part of the sheet metal. Under the same top-pressure conditions, the material of the B-pillar inner panel 12 of a long-wheelbase model can be adjusted to a 1500MPa material to increase strength, while for a short-wheelbase model, due to its lighter body, the material of the B-pillar inner panel 12 can be adjusted to a 1000MPa material to save costs.

[0093] It should also be noted that when adjusting the material cannot meet the performance requirements of the inner door ring structure 1, a reinforcing plate can be installed at the weak point on the inner side of the inner door ring structure 1 to increase the strength of the inner door ring structure 1 and enable the inner door ring structure 1 to meet the performance requirements.

[0094] In some embodiments, the upper section of the inner B-pillar panel 12, the upper side beam connecting section 111, the main body section 112, and the front sill beam connecting section 113 are typically weak points of the inner door ring structure 1. Reinforcing plates can be provided at at least one of these locations to increase the overall strength of the inner door ring structure 1.

[0095] In addition, it should be noted that when some performance of the inner door ring structure 1 is excessive, the cost can be reduced by reducing the reinforcing plate, or the material thickness of the integrated inner door ring structure 1 and the reinforcing plate can be optimized simultaneously to achieve a balance between performance and cost, thereby enabling precise reinforcement design for different models and different performance indicators.

[0096] Since the inner door ring structure 1 can be applied to different car models, the main differences between the inner door ring structure 1 and the inner door ring structure 1 are the length of the connecting section 141 and / or the material of the inner door ring structure 1. The differences between different inner door ring structures 1 are relatively small. Moreover, in the actual production process, a single production line often produces multiple car models, and parts produced on the same production line are prone to confusion, leading to assembly errors.

[0097] Based on this, in some embodiments of this application, such as Figure 9 and Figure 12 As shown, by setting a mis-proof part 121 in the middle part of the inner panel 12 of the B-pillar, and by whether or not to open an identification hole 1211 in the mis-proof part 121 and changing the coordinate position of the identification hole 1211, the inner door ring structure 1 of different models can be distinguished, thereby achieving the purpose of mis-proofing.

[0098] In some embodiments, the error prevention part 121 is manufactured by stamping, and the identification hole 1211 is made by laser cutting. Compared with traditional stamping, laser cutting does not require mold adjustment or new punching, thus saving development costs to the greatest extent.

[0099] In some embodiments, the size of the error prevention part 121 is 25*45mm; the diameter of the identification hole 1211 is 8mm. If the diameter of the identification hole 1211 is too large, it may reduce the strength of the B-pillar inner panel 12; if the diameter of the identification hole 1211 is too small, it may make the identification hole 1211 difficult to be identified.

[0100] The following example illustrates two scenarios: the connection of the connecting section 141 to the rear sill beam 2 without cutting, and the connection of the connecting section 141 to the rear sill beam 2 after cutting.

[0101] For ease of description, in this embodiment, connecting the connecting segment 141 directly to the rear sill beam 2 without cutting is called a long axis connection, and connecting the connecting segment 141 to the rear sill beam 2 after cutting a portion is called a short axis connection. It should be noted that the overall length of the inner door ring structure 1 and the rear sill beam 2 after the short axis connection is less than the overall length of the inner door ring structure 1 and the rear sill beam 2 after the long axis connection is made.

[0102] like Figures 7-12As shown, the two protrusions 142 correspond to the first protrusion 1421 and the second protrusion 1422. The first protrusion 1421 is located away from the inner panel 12 of the B-pillar, and the second protrusion 1422 is located close to the inner panel 12 of the B-pillar. The side of the first protrusion 1421 away from the connecting section 141 and the side of the second protrusion 1422 away from the connecting section 141 are located on the same plane. The two mounting parts 143 correspond to the first mounting part 1431 and the second mounting part 1432. The first mounting part 1431 is located away from the inner panel 12 of the B-pillar, and the second mounting part 1432 is located close to the inner panel 12 of the B-pillar. The first protrusion 1421 and the first mounting part 1431 are located on the cut-off connecting section 141.

[0103] like Figure 7 and Figure 8 As shown, when the inner door ring structure 1 and the rear door sill beam 2 are connected by a long axis, the connecting section 141 does not need to be cut. After the rear door sill beam 2 and the connecting section 141 are welded, the connecting section 141 still has a 100mm margin. The side of the rear door sill beam 2 away from the inner door ring structure 1 is flush with the side of the first boss 1421 away from the connecting section 141. The door sill trim is installed in the first mounting part 1431, and the lower interior trim of the B-pillar inner panel 12 is installed in the second mounting part 1432.

[0104] like Figure 10 and Figure 11 As shown, when the inner door ring structure 1 and the rear sill beam 2 are connected by a short axis, the connecting section 141 is cut off. The remaining length of the connecting section 141 must be at least 40mm to ensure the overlap between the rear sill beam 2 and the connecting section 141. When the connecting section 141 is cut off, the first boss 1421 and the first mounting part 1431 are cut off. After the rear sill beam 2 is welded to the connecting section 141, the side of the rear sill beam 2 away from the inner door ring structure 1 is flush with the side of the second boss 1422 away from the connecting section 141. The sill trim and the lower interior trim of the B-pillar inner panel 12 are both installed on the second mounting part 1432.

[0105] It should be noted that, as Figure 9 As shown, no identification hole 1211 is provided on the inner plate 12 of the B-pillar of the inner door ring structure 1, which is connected to the rear door sill beam 2 along its long axis. Figure 12 As shown, an identification hole 1211 is opened on the inner plate 12 of the B-pillar of the inner door ring structure 1, which is connected to the rear door sill beam 2 by a short axis, to distinguish the two types of inner door ring structures 1.

[0106] It should also be noted that in this embodiment, when the inner door ring structure 1 and the rear door sill beam 2 are connected by a short axis, the connecting section 141 is cut off by 100mm; the distance between the first boss 1421 and the second boss 1422 is 100mm, and / or the distance between the first mounting part 1431 and the second mounting part 1432 is 100mm.

[0107] Based on the aforementioned integrated inner door ring structure 1, this application also provides a side panel assembly, including a front section of the side panel and a rear sill beam 2; the front section of the side panel is the aforementioned integrated inner door ring structure 1; the connecting section 141 is provided with a first position and a second position, the first position being closer to the B-pillar inner panel 12 than the second position; when the rear sill beam 2 is connected to the connecting section 141 at the first position, the length of the side panel assembly is L1, and when the rear sill beam 2 is connected to the connecting section 141 at the second position, the length of the side panel assembly is L2, wherein L2 is greater than L1.

[0108] The aforementioned side panel assembly, by setting the front section of the side panel as an integrated inner door ring structure 1, allows the rear door sill beam 2 to be connected to different positions of the connecting section 141. This enables flexible adaptation to the different requirements of different vehicle models for the length of the side panel assembly, improves the versatility of the side panel assembly, and also reduces the development cost and complexity of corresponding parts for different vehicle models, thereby improving production efficiency.

[0109] Since the first position is closer to the inner panel 12 of the B-pillar than the second position, the length of the side inner panel assembly when the rear sill beam 2 is connected in the second position is greater than the length of the side inner panel assembly when the rear sill beam 2 is connected in the first position.

[0110] The side panel assembly also includes an upper side beam inner panel, which is located above the rear sill beam 2. The upper side beam inner panel is connected to the upper end of the inner door ring structure 1, and is located on the side of the B-pillar inner panel 12 away from the A-pillar inner panel 11. This allows the upper side beam inner panel to effectively distribute external forces to the inner door ring structure 1 and the rear sill beam 2, enhancing the vehicle's side impact resistance. At the same time, the compact layout optimizes the use of side panel space, enabling each component to work together to reduce stress concentration, improve the overall rigidity and durability of the vehicle, and ensure long-term stable operation of the vehicle while ensuring safety.

[0111] In some embodiments, the inner door ring structure 1 is provided with a connecting part 101, which is located at one end of the upper side beam connecting section 111 connected to the inner plate of the B-pillar 12, and the connecting part 101 is connected to the inner plate of the upper side beam.

[0112] The side panel assembly also includes a front crossbeam connecting plate for the roof, which is connected to the inner panel 11 of the A-pillar and located at the upper end of the inner door ring structure 1.

[0113] In some embodiments, the front crossbeam connecting plate of the roof is connected to the upper side beam connecting section 111 and is located between the main body section 112 and the inner plate of the B-pillar 12.

[0114] The front crossbeam connecting plate of the roof is used to connect the front crossbeam of the roof so as to facilitate the overlapping installation of the front crossbeam of the roof. At the same time, the front crossbeam connecting plate of the roof can transmit the force from the front crossbeam of the roof to form a force transmission structure, thereby improving the force transmission performance of the upper part of the inner plate 11 of the A-pillar.

[0115] It should be noted that the inner door ring structure 1 does not only include the inner A-pillar panel 11, the inner B-pillar panel 12, and the front sill beam 13. In some embodiments, it also includes the side pedal mounting plate, etc. However, it is certain that the inner door ring structure 1 does not include the upper side beam inner panel and the rear sill beam 2.

[0116] Based on the aforementioned side panel assembly, this application also provides a vehicle that includes the aforementioned side panel assembly.

[0117] The aforementioned vehicles utilize an integrated inner door ring structure 1 for the side inner panel assembly. This integrated inner door ring structure 1 boasts high integration, excellent overall strength and mechanical properties, contributing to improved vehicle body structure stability and safety. It also reduces the need for stamping die development and welding processes, eliminating welding redundancy and effectively lowering vehicle manufacturing costs. The inner door ring structure 1 achieves parts sharing between long and short wheelbase models by altering the cutting position of the connecting section 141 and using laser cutting openings, meeting the differentiated application needs of various models. The error-proofing part 121 design prevents parts from being confused or incorrectly assembled, improving production efficiency. Simultaneously, through material adjustments and reinforcement plate optimization, precise reinforcement is achieved, enabling the vehicle to better adapt to different performance requirements and enhancing product competitiveness.

[0118] In some embodiments, the side inner panel assembly of the integrated inner door ring structure 1 can reduce the weight of the vehicle by 1.2 kg and reduce the production cost by approximately 32 yuan.

[0119] Through the description of several embodiments of the integrated inner door ring structure 1, the side inner panel assembly, and the vehicle of this application, it can be seen that the integrated inner door ring structure 1, the side inner panel assembly, and the vehicle embodiments of this application have at least one or more of the following advantages:

[0120] (1) The integrated inner door ring structure 1 used in the front section of the side inner panel is more integrated than the traditional structure formed by the overlapping of the A-pillar inner panel 11, the B-pillar inner panel 12 and the front door sill beam 13. This not only reduces the number of stamping dies and welding processes, but also enhances the overall strength and mechanical properties of the front section of the side inner panel due to the integrated molding. Moreover, the integrated inner door ring structure 1 can effectively avoid welding redundancy and achieve lightweight design.

[0121] (2) The integrated inner door ring structure 1 has a high degree of commonality. By cutting and adjusting the length of the connecting section 141, the rear door sill beam 2 and the inner door ring structure 1 can be overlapped at different positions, thereby realizing the commonality of parts for long and short wheelbase models. One mold can be adapted to the production of multiple models.

[0122] (3) Without altering the stamping die, differentiated material designs can be implemented for different vehicle models to meet the performance requirements of each model. By welding reinforcing plates to the integrated inner door ring structure 1, targeted reinforcement can be provided to weak parts; if necessary, the use of reinforcing plates can be reduced, thereby achieving overall vehicle weight reduction and cost reduction, and improving product cost-effectiveness.

[0123] (4) An anti-mistake part 121 is provided in the middle of the inner panel 12 of the B-pillar. The inner door ring structure 1 of different models can be distinguished by the presence or absence of the identification hole 1211 and by changing the coordinate position of the identification hole 1211. Even if multiple models are produced on the same production line, the confusion and misassembly caused by similar parts can be effectively avoided, and production efficiency and assembly accuracy can be significantly improved.

[0124] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An integrated interior door ring structure, characterized by, It includes an inner panel of A-pillar (11), an inner panel of B-pillar (12), and a front sill beam (13), wherein the inner panel of A-pillar (11), the inner panel of B-pillar (12), and the front sill beam (13) are connected end to end and integrally formed; The lower end of the inner door ring structure (1) is provided with an overlapping part (14), which is located on the side of the inner plate of the B-pillar (12) away from the inner plate of the A-pillar (11); the overlapping part (14) is provided with a connecting section (141) that connects to the rear door sill beam (2), and the rear door sill beam (2) can be connected to any position on the connecting section (141).

2. The one-piece interior door ring structure of claim 1, wherein, One end of the connecting section (141) is located at the lower end of the inner panel (12) of the B-pillar, and the other end of the connecting section (141) is located away from the inner panel (12) of the B-pillar; the length of the connecting section (141) can be cut according to the connection position of the rear door sill beam (2).

3. The one-piece interior door ring structure of claim 1, wherein, The overlapping part (14) is provided with a boss (142), and the side of the boss (142) away from the connecting section (141) and the side of the rear door sill beam (2) away from the inner door ring structure (1) are located on the same plane; And / or, the overlapping part (14) is provided with a mounting part (143), the mounting part (143) being located at the top of the connecting section (141); the mounting part (143) is used to install the door sill trim and / or the B-pillar inner panel trim.

4. The one-piece interior door ring structure of claim 3, wherein, At least two bosses (142) are provided, and the two bosses (142) are arranged along the length direction of the connecting segment (141); And / or, at least two mounting portions (143) are provided, and the two mounting portions (143) are arranged along the length direction of the connecting segment (141).

5. The one-piece interior door ring structure of claim 1, wherein, The middle part of the inner panel (12) of the B-pillar is provided with a fault prevention part (121), and an identification hole (1211) is opened in the fault prevention part (121).

6. The integrated inner door ring structure according to claim 1, characterized in that, The inner panel (11) of the A-pillar includes an upper side beam connecting section (111), a main body section (112), and a front sill beam connecting section (113), which are arranged sequentially from top to bottom. The inner door ring structure (1) is provided with a mating part (102), which is located on the upper side beam connecting section (111); the mating part (102) is used to install wire harness buckles and / or handle brackets.

7. A side wall inner panel assembly characterized by, include: The front section of the inner side panel is an integrated inner door ring structure as described in any one of claims 1-6; The connecting section (141) is provided with a first position and a second position, wherein the first position is located closer to the inner panel (12) of the B-pillar than the second position; When the rear sill beam (2) is connected to the connecting section (141) at the first position, the length of the inner side panel assembly is L1. When the rear sill beam (2) is connected to the connecting section (141) at the second position, the length of the inner side panel assembly is L2, wherein L2 is greater than L1.

8. The side wall inner panel assembly of claim 7, wherein, It also includes an inner plate of the upper beam, which is located above the rear door sill beam (2), and is connected to the upper end of the inner door ring structure (1), and is located on the side of the inner plate of the B pillar (12) away from the inner plate of the A pillar (11).

9. The side wall inner panel assembly of claim 7, wherein, It also includes a front crossbeam connecting plate for the top cover, which is connected to the inner plate (11) of the A-pillar and located at the upper end of the inner door ring structure (1).

10. A vehicle characterized by comprising: Including the car body; The vehicle body is provided with the side inner panel assembly as described in claim 7.

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