A vehicle D-pillar under-connector and D-pillar

Abstract

This application discloses a lower connector for a vehicle D-pillar and a D-pillar, belonging to the technical field of vehicle D-pillar fixing structures. The lower connector for the vehicle D-pillar of this application includes an inner panel, an outer panel, and a reinforcing plate. The inner panel and outer panel are fixedly connected and form a first cavity. The reinforcing plate is located within the first cavity and has a second cavity, the opening of which faces the outer panel. The reinforcing plate is fixedly connected to the outer panel on both sides along a first direction, and the reinforcing plate is located between the inner panel and the outer panel on both sides along a second direction, so that the inner panel and the outer panel clamp the reinforcing plate. The first direction and the second direction are angled. The side of the reinforcing plate facing the inner panel is also fixedly connected to the inner panel. The lower connector for the vehicle D-pillar of this application has good torsional mode and torsional stiffness. Furthermore, it includes fewer components and has a simple structure, which helps to reduce the production cost of the lower connector for the vehicle D-pillar.

Description

Technical Field

[0001] This application belongs to the technical field of vehicle D-pillar fixing structure, and particularly relates to a vehicle D-pillar lower connector and D-pillar. Background Technology

[0002] SUVs and MPVs typically have A-pillars, B-pillars, C-pillars, and D-pillars. These pillars are not merely metal supports that hold up the roof of the passenger compartment; they also play a vital role in protecting the occupants from being crushed or deformed during a rollover or overturning incident.

[0003] In the development of hatchback models, especially SUVs with a large wheelbase, it is difficult to achieve a relatively good level of torsional mode and torsional stiffness performance of the body. This often leads to abnormal noises in the body or tailgate later on. The lower joint of the D-pillar is a key system component that affects the torsional stiffness and mode of the body. Its design directly affects the overall torsional stiffness and torsional mode of the body.

[0004] Among related technologies, the torsional mode and torsional stiffness performance of the D-pillar under-joint are relatively poor. Summary of the Invention

[0005] This application aims to at least partially solve the technical problem of poor torsional mode and torsional stiffness performance of D-pillar underjoints in related technologies. To this end, this application provides a vehicle D-pillar underjoint and a D-pillar.

[0006] In a first aspect, an embodiment of this application provides a vehicle D-pillar under-connector, comprising: an inner panel and an outer panel, the inner panel and the outer panel being fixedly connected and forming a first cavity; a reinforcing plate located within the first cavity, the reinforcing plate having a second cavity, the opening of the second cavity facing the outer panel; wherein, the reinforcing plate is fixedly connected to the outer panel on both sides along a first direction; the reinforcing plate is located between the inner panel and the outer panel on both sides along a second direction, such that the inner panel and the outer panel clamp the reinforcing plate, the first direction and the second direction being angled; the side of the reinforcing plate facing the inner panel is fixedly connected to the inner panel.

[0007] In some embodiments, the reinforcing plate includes a first bottom wall, a first side wall, a plurality of first flanges, and a plurality of second flanges; the first bottom wall and the first side wall are fixedly connected and enclose a second cavity; the first flanges are fixedly connected to the first side wall or the first bottom wall; the second flanges are fixedly connected to the first side wall or the first bottom wall; the plurality of first flanges are disposed on both sides of the reinforcing plate along a first direction and are fixedly connected to the outer plate; the plurality of second flanges are disposed on both sides of the reinforcing plate along a second direction and are located between the inner plate and the outer plate, such that the inner plate and the outer plate clamp the second flanges.

[0008] In some embodiments, the outer plate includes a second bottom wall and a second side wall fixedly connected; the inner plate includes a third bottom wall and a third side wall fixedly connected; the second bottom wall and the third bottom wall are disposed opposite to each other, and the second side wall and the third side wall are disposed opposite to each other; the second bottom wall has a first stop on the side away from the second side wall, and the second side wall has a second stop on the side away from the second bottom wall; the third bottom wall has a third stop on the side away from the third side wall, and the third side wall has a fourth stop on the side away from the third bottom wall; a second flange near the third bottom wall is disposed on the first side wall of the reinforcing plate and is located between the second stop and the third stop, so that the second stop and the third stop clamp the second flange; the second flange near the second bottom wall is disposed on the first bottom wall of the reinforcing plate and is located between the first stop and the fourth stop, so that the first stop and the fourth stop clamp the second flange.

[0009] In some embodiments, the second flange, the second stop, and the third stop are welded together in three layers, and the second flange, the first stop, and the fourth stop are welded together in three layers.

[0010] In some embodiments, a plurality of the first flanges are disposed on the first sidewall of the reinforcing plate, some of the first flanges are fixedly connected to the second bottom wall, and other first flanges are fixedly connected to the second sidewall.

[0011] In some embodiments, the reinforcing plate is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are located outside the second cavity.

[0012] In some embodiments, some of the reinforcing ribs are located on both the first bottom wall and the first side wall.

[0013] In some embodiments, the surface of the reinforcing rib located on the first bottom wall facing the inner plate is an adhesive plane, and the adhesive plane is adhesively bonded to the inner plate so that the side of the reinforcing plate facing the inner plate is fixedly connected to the inner plate.

[0014] In some embodiments, the reinforcing plate is welded and fixed to the outer plate on both sides along the first direction.

[0015] Secondly, embodiments of this application also provide a D-pillar, including a D-pillar body and the vehicle D-pillar under-connector provided in the first aspect above.

[0016] The present invention has at least the following beneficial effects:

[0017] The lower connector of the D-pillar of the vehicle in this application includes an inner panel and an outer panel. The inner panel and the outer panel are fixedly connected and form a first cavity. A reinforcing plate is provided in the first cavity of the inner panel and the outer panel. The reinforcing plate has a second cavity. The reinforcing plate is fixedly connected to the outer panel on both sides along a first direction. The reinforcing plate is located on both sides of the inner panel and the outer panel support along a second direction. The inner panel and the outer panel clamp the reinforcing plate. The side of the reinforcing plate facing the inner panel is also fixedly connected to the inner panel.

[0018] The reinforcing plate is fixedly connected to the outer panel on both sides along the first direction; it is also fixedly connected to the inner panel on the side facing the inner panel. Simultaneously, the reinforcing plate is located between the inner and outer panels on both sides along the second direction, and is clamped and fixed by the inner and outer panels, ensuring the reinforcing plate is securely fixed to them. This strengthens the rigidity of the first cavity, thereby increasing the overall rigidity of the D-pillar lower connector of the vehicle. The reinforcing plate, located between the inner and outer panels on both sides along the second direction and clamped and fixed by them, forms a three-layer structure with the inner and outer panels on both sides along the second direction. This connects the reinforcing plate along the second direction within the overall structure of the inner and outer panels, ensuring a reliable connection while facilitating force transmission and strengthening the overall rigidity of the D-pillar lower connector structure. Furthermore, the design of the second cavity on the reinforcing plate, forming a cavity-within-a-cavity structure with the first cavity, facilitates force dispersion, thus improving the torsional mode and torsional stiffness of the D-pillar lower connector of the vehicle. Meanwhile, the D-pillar under-connector of this application has a small number of components and a simple structure, which helps to reduce the production cost of the D-pillar under-connector. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This application illustrates the structural schematic of the vehicle D-pillar under-pillar connector in one or more embodiments. Figure 1 .

[0021] Figure 2 It shows Figure 1 The diagram shows the structure of the vehicle after the inner panel of the lower D-pillar connector has been removed. Figure 1 .

[0022] Figure 3 It shows Figure 1 The diagram shows the structure of the vehicle after the inner panel of the lower D-pillar connector has been removed. Figure 2 .

[0023] Figure 4This application illustrates a schematic diagram of the structure of a vehicle D-pillar under-pillar connector in one or more embodiments. Figure 2 .

[0024] Figure 5 A schematic diagram of the reinforcing plate in the lower joint of the D-pillar of a vehicle is shown in one or more embodiments of the application.

[0025] Reference numerals: 100-Vehicle D-pillar under-joint, 100a-First cavity, 110-Inner panel, 111-Third bottom wall, 1111-Third stop, 112-Third side wall, 1121-Fourth stop, 120-Outer panel, 121-Second bottom wall, 1211-First stop, 122-Second side wall, 1221-Second stop, 130-Reinforcing plate, 130a-Second cavity, 131-First bottom wall, 132-First side wall, 133-First flange, 134-Second flange, 135-Reinforcing rib, 135a-Adhesive bonding plane. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0030] SUVs and MPVs typically have A-pillars, B-pillars, C-pillars, and D-pillars. These pillars are not merely metal supports that hold up the roof of the passenger compartment; they also play a vital role in protecting the occupants from being crushed or deformed during a rollover or overturning incident.

[0031] In the development of hatchback models, especially SUVs with a large wheelbase, it is difficult to achieve a relatively good level of torsional mode and torsional stiffness performance of the body. This often leads to abnormal noises in the body or tailgate later on. The lower joint of the D-pillar is a key system component that affects the torsional stiffness and mode of the body. Its design directly affects the overall torsional stiffness and torsional mode of the body.

[0032] In related technologies, the lower joint of the D-pillar is usually a cavity with a baffle inside. The cross-section of the baffle is simple, and the connection between the baffle and the cavity is relatively strong in some places. It does not strengthen the overall rigidity of the lower joint, and the torsional mode and torsional stiffness performance of the lower joint of the D-pillar are poor.

[0033] Therefore, in related technologies, the D-pillar under-pillar joint suffers from poor performance in torsional mode and torsional stiffness. This application provides a vehicle D-pillar under-pillar joint that can at least partially solve the aforementioned technical problems.

[0034] This application is described below with reference to the accompanying drawings and specific embodiments:

[0035] This application provides a vehicle D-pillar under-joint 100. The vehicle D-pillar under-joint 100 provided in this application embodiment can improve the torsional mode and torsional stiffness of the vehicle D-pillar under-joint 100 by setting the inner plate 110, the outer plate 120 and the reinforcing plate 130.

[0036] like Figure 1 and Figure 2As shown, the vehicle D-pillar under-pillar connector 100 provided in this embodiment includes an inner panel 110, an outer panel 120, and a reinforcing plate 130. The inner panel 110 and the outer panel 120 are fixedly connected and form a first cavity 100a. The reinforcing plate 130 is located within the first cavity 100a, and a second cavity 130a is provided on the reinforcing plate 130, with the opening of the second cavity 130a facing the outer panel 120. The reinforcing plate 130 is fixedly connected to the outer panel 120 on both sides along a first direction; the reinforcing plate 130 is located between the inner panel 110 and the outer panel 120 on both sides along a second direction, so that the inner panel 110 and the outer panel 120 clamp the reinforcing plate 130; the side of the reinforcing plate 130 facing the inner panel 110 is fixedly connected to the inner panel 110. The first direction and the second direction are angled together.

[0037] The reinforcing plate 130 is fixedly connected to the outer plate 120 on both sides along the first direction; the reinforcing plate 130 is fixedly connected to the inner plate 110 on the side facing the inner plate 110; at the same time, the reinforcing plate 130 is located between the inner plate 110 and the outer plate 120 on both sides along the second direction, and is clamped and fixed by the inner plate 110 and the outer plate 120, so that the reinforcing plate 130 is firmly fixed on the inner plate 110 and the outer plate 120, thereby strengthening the rigidity of the first cavity 100a and increasing the overall rigidity of the D-pillar lower connector 100 of the vehicle of this application. The reinforcing plate 130 is located between the inner plate 110 and the outer plate 120 on both sides along the second direction, and is clamped and fixed by the inner plate 110 and the outer plate 120. This design forms a three-layer structure with the inner plate 110 and the outer plate 120 on both sides along the second direction, connecting the reinforcing plate 130 to the overall structure of the inner plate 110 and the outer plate 120. This ensures a reliable connection, facilitates force transmission, and enhances the overall rigidity of the vehicle D-pillar lower connector 100. Furthermore, the design of the second cavity 130a on the reinforcing plate 130, forming a cavity-within-a-cavity structure with the first cavity 100a, facilitates force dispersion, thereby improving the torsional mode and torsional stiffness of the vehicle D-pillar lower connector 100. Simultaneously, the vehicle D-pillar lower connector 100 includes fewer components and has a simpler structure, which helps reduce the production cost of the vehicle D-pillar lower connector 100.

[0038] In some embodiments, the D-pillar under-mount connector 100 of this application can improve the overall body modality by 0.3 Hz and the body torsional stiffness by 300 Nm / rad. It can be seen that the D-pillar under-mount connector 100 of this application can effectively improve the overall body modality and body torsional stiffness.

[0039] The angle between the first and second directions can be set to a right angle, an acute angle, or an obtuse angle, such as... Figure 2As shown, in some embodiments, they are arranged at right angles. The reinforcing plate 130 is fixedly connected to the inner plate 110 and the outer plate 120 in different directions, which helps to make the reinforcing plate 130 bear force evenly and improves the torsional mode and torsional stiffness of the D-pillar joint of this application to a certain extent.

[0040] The methods of fixing the inner panel 110 and the outer panel 120 are varied, including welding, threaded connection, riveting, bonding, etc., and are not limited in this application.

[0041] The methods of fixing the reinforcing plate 130 to the inner plate 110 and the outer plate 120 are also diverse, including welding, threaded connection, riveting, bonding, etc., and are not limited in this application.

[0042] In some embodiments, the reinforcing plate 130 includes a first bottom wall 131, a first side wall 132, a plurality of first flanges 133, and a plurality of second flanges 134. The first bottom wall 131 and the first side wall 132 are fixedly connected and enclose a second cavity 130a. The first flanges 133 are fixedly connected to the first side wall 132 or the first bottom wall 131, and the second flanges 134 are fixedly connected to the first side wall 132 or the first bottom wall 131. The plurality of first flanges 133 are disposed on both sides of the reinforcing plate 130 along a first direction and are fixedly connected to the outer plate 120; the plurality of second flanges 134 are disposed on both sides of the reinforcing plate 130 along a second direction and are located between the inner plate 110 and the outer plate 120, such that the inner plate 110 and the outer plate 120 clamp the second flanges 134.

[0043] With this design, the reinforcing plate 130 is fixedly connected to the outer plate 120 along both sides of the first direction via the first flange 133, and the reinforcing plate 130 is clamped and fixed between the inner plate 110 and the outer plate 120 along both sides of the second direction via the second flange 134. The first bottom wall 131, the first side wall 132, the first flange 133, and the second flange 134 can be integrally formed by stamping, casting, etc., or they can be processed separately and then fixedly connected by welding, etc. The material of the reinforcing plate 130 is diverse; it can be a metal material such as aluminum alloy, or a high-strength plastic, etc. In these embodiments, the first bottom wall 131 and the first side wall 132 together form the second cavity 130a, and the number of second side walls 122 can be one arranged in a ring, or as shown in the figure. Figure 2 The multiple shown Figure 2The reinforcing plate 130 shown has three first sidewalls 132. The first flange 133 can be located on the first bottom wall 131 or the first sidewall 132, and similarly, the second flange 134 can also be located on the first bottom wall 131 or the first sidewall 132; this application does not limit the location. The reinforcing plate 130 is formed by the first bottom wall 131, the first sidewalls 132, the first flange 133, and the second flange 134, which facilitates the integral forming of the reinforcing plate 130 by casting, stamping, or other methods, improving the forming speed. Simultaneously, the presence of the first flange 133 and the second flange 134 facilitates the fixed connection of the reinforcing plate 130 to the outer plate 120 along both sides in the first direction, and facilitates the clamping and fixing of the reinforcing plate 130 between the inner plate 110 and the outer plate 120 along both sides in the second direction.

[0044] like Figure 3 and Figure 4 As shown, in some embodiments, the outer panel 120 includes a second bottom wall 121 and a second side wall 122 fixedly connected; the inner panel 110 includes a third bottom wall 111 and a third side wall 112 fixedly connected; the second bottom wall 121 and the third bottom wall 111 are disposed opposite to each other, and the second side wall 122 and the third side wall 112 are disposed opposite to each other. A first stop 1211 is provided on the side of the second bottom wall 121 away from the second side wall 122, and a second stop 1221 is provided on the side of the second side wall 122 away from the second bottom wall 121. A third stop 1111 is provided on the side of the third bottom wall 111 away from the third side wall 112, and a fourth stop 1121 is provided on the side of the third side wall 112 away from the third bottom wall 111. The second flange 134 near the third bottom wall 111 is disposed on the first side wall 132 of the reinforcing plate 130 and is located between the second stop 1221 and the third stop 1111, so that the second stop 1221 and the third stop 1111 clamp the second flange 134; the second flange 134 near the second bottom wall 121 is disposed on the first bottom wall 131 of the reinforcing plate 130 and is located between the first stop 1211 and the fourth stop 1121, so that the first stop 1211 and the fourth stop 1121 clamp the second flange 134.

[0045] With this design, the inner plate 110 and the outer plate 120 can be fixedly connected together by fixing the first stop 1211 and the fourth stop 1121, and the second stop 1221 and the third stop 1111, making the connection between the inner plate 110 and the outer plate 120 more convenient. The second flange 134, located near the second bottom wall 121, is set on the first bottom wall 131 of the reinforcing plate 130. With this design, the first side wall 132 is not required on the side of the reinforcing plate 130 near the second bottom wall 121. The reinforcing plate 130 can use the second bottom wall 121 to form the second cavity 130a, which helps simplify the structure of the reinforcing plate 130 and facilitates its processing.

[0046] The second bottom wall 121 and the second side wall 122, the third bottom wall 111 and the third side wall 112 can be integrally formed and fixedly connected by stamping, casting or other methods, or they can be fixedly connected by separate processing and welding or other methods.

[0047] In some embodiments, the second flange 134, the second stop 1221, and the third stop 1111 are fixed by three-layer welding, and the second flange 134, the first stop 1211, and the fourth stop 1121 are also fixed by three-layer welding. That is, the second flange 134, which is closer to the second stop 1221, is not only located between and held by the second and third stops 1111, but also forms a three-layer welded fixation with the second and third stops 1111. Similarly, the second flange 134, which is closer to the first stop 1211, is not only located between and held by the first and fourth stops 1121, but also forms a three-layer welded fixation with the first and fourth stops 1121. With this design, the overall connection strength between the reinforcing plate 130 and the inner plate 110 and the outer plate 120 along both sides of the second direction is greatly increased, which helps to improve the overall rigidity of the lower D-pillar joint 100 of the vehicle of this application, thereby improving the torsional mode and torsional stiffness of the lower D-pillar joint 100 of the vehicle of this application.

[0048] In some embodiments, multiple first flanges 133 are disposed on the first sidewall 132 of the reinforcing plate 130. Some first flanges 133 are fixedly connected to the second bottom wall 121, and others are fixedly connected to the second sidewall 122. With this design, among the first flanges 133 on both sides along the first direction, some first flanges 133 are fixedly connected to the second bottom wall 121, and others are fixedly connected to the second sidewall 122. This allows different parts of the reinforcing plate 130 to connect with the outer plate 120, enhancing the connection strength between the reinforcing plate 130 and the outer plate 120, and helping to improve the torsional mode and torsional stiffness of the D-pillar under-joint 100 of the vehicle in this application.

[0049] In some embodiments, such as Figure 3 As shown, four first flanges 133 are provided, two on each side along the first direction. One first flange 133 is fixedly connected to the second side wall 122, and the other first flange 133 is fixedly connected to the second bottom wall 121. Two second flanges 134 are provided, one on each side along the second direction. One second flange 134 is located between the second stop 1221 and the third stop 1111, and the other second flange 134 is located between the first stop 1211 and the fourth stop 1121.

[0050] In some embodiments, such as Figure 3 and Figure 5As shown, the reinforcing plate 130 is provided with a plurality of reinforcing ribs 135, which are located outside the second cavity 130a. The stiffness of the reinforcing plate 130 is increased by the setting of the reinforcing ribs 135, which in turn helps to improve the stiffness of the lower D-pillar connector 100 of the vehicle of this application, and ensures the torsional mode and torsional stiffness of the lower D-pillar connector 100 of the vehicle of this application.

[0051] In some embodiments, such as Figure 5 As shown, some of the reinforcing ribs 135 are located on both the first bottom wall 131 and the first side wall 132. That is, some of the reinforcing ribs 135 penetrate through the first bottom wall 131 and the first side wall 132. This structural design strengthens the rigidity of the connection between the first bottom wall 131 and the second side wall 122, and ensures the connection rigidity between the various areas on the reinforcing plate 130.

[0052] In some embodiments, such as Figure 5 As shown, three reinforcing ribs 135 are provided, one of which is located on the first side wall 132 of the reinforcing plate 135 facing the third bottom wall 111, and the other two reinforcing ribs 135 are located on the first bottom wall 131 and extend to the two first side walls 132 of the reinforcing plate 130 along the second direction.

[0053] In some embodiments, such as Figure 5 As shown, the surface of the reinforcing rib 135 located on the first bottom wall 131 facing the inner plate 110 is the adhesive bonding plane 135a, and the adhesive bonding plane 135a is bonded to the inner plate 110. In these embodiments, by bonding the adhesive bonding plane 135a to the inner plate 110, the side of the reinforcing plate 130 facing the inner plate 110 is fixedly connected to the inner plate 110, thereby simplifying the structure of the reinforcing plate 130. The adhesive bonding method is convenient to operate. Of course, the reinforcing plate 130 and the inner plate 110 can also be fixedly connected by welding, bolting, riveting, etc.

[0054] In some embodiments, the reinforcing plate 130 is welded to the outer plate 120 on both sides along a first direction. The welding connection method is easy to operate and helps to ensure the connection strength between the reinforcing plate 130 and the outer plate 120.

[0055] In summary, the lower D-pillar connector 100 of the vehicle in this application is fixedly connected to the outer panel 120 on both sides along the first direction by the reinforcing plate 130; it is also fixedly connected to the inner panel 110 on the side facing the inner panel 110 by the reinforcing plate 130; at the same time, the reinforcing plate 130 is located between the inner panel 110 and the outer panel 120 on both sides along the second direction and is clamped and fixed by the inner panel 110 and the outer panel 120, so that the reinforcing plate 130 is firmly fixed on the inner panel 110 and the outer panel 120, thereby strengthening the rigidity of the first cavity 100a and increasing the overall rigidity of the lower D-pillar connector 100 of the vehicle in this application. The reinforcing plate 130 is located between the inner plate 110 and the outer plate 120 on both sides along the second direction, and is clamped and fixed by the inner plate 110 and the outer plate 120. This design forms a three-layer structure with the inner plate 110 and the outer plate 120 along both sides of the second direction, connecting the reinforcing plate 130 to the overall structure of the inner plate 110 and the outer plate 120. This ensures a reliable connection, facilitates force transmission, and enhances the overall rigidity of the vehicle D-pillar lower connector 100. Furthermore, the design of the second cavity 130a on the reinforcing plate 130, forming a cavity-within-a-cavity structure with the first cavity 100a, facilitates force dispersion, thereby improving the torsional mode and torsional stiffness of the vehicle D-pillar lower connector 100. Simultaneously, the vehicle D-pillar lower connector 100 includes fewer components and has a simpler structure, which helps reduce the production cost of the vehicle D-pillar lower connector 100. The reinforcing plate 130 is formed by the first bottom wall 131, the first side wall 132, the first flange 133, and the second flange 134, which facilitates the integral forming of the reinforcing plate 130 by casting, stamping, or other methods, thereby improving the forming speed. The first flange 133 and the second flange 134 facilitate the fixed connection of the reinforcing plate 130 to the outer plate 120 along both sides of the first direction, and facilitate the clamping and fixing of the reinforcing plate 130 between the inner plate 110 and the outer plate 120 along both sides of the second direction. The design of the first stop 1211, the second stop 1221, the third stop 1111, and the fourth stop 1121 facilitates the fixed connection between the inner plate 110 and the outer plate 120. The second flange 134 near the second bottom wall 121 is set on the first bottom wall 131 of the reinforcing plate 130, so that the side of the reinforcing plate 130 near the second bottom wall 121 does not need to be provided with the first side wall 132. The reinforcing plate 130 can be enclosed by the second bottom wall 121 to form the second cavity 130a, which helps to simplify the structure of the reinforcing plate 130 and facilitates the processing of the reinforcing plate 130. The second flange 134, the second stop 1221, and the third stop 1111 are welded together in three layers. The second flange 134, the first stop 1211, and the fourth stop 1121 are also welded together in three layers. This greatly increases the overall connection strength between the reinforcing plate 130 and the inner plate 110 and the outer plate 120 along both sides of the second direction. This helps to improve the overall rigidity of the lower D-pillar joint 100 of the vehicle in this application, and thus improves the torsional mode and torsional stiffness of the lower D-pillar joint 100 of the vehicle in this application.The stiffness of the reinforcing plate 130 is increased by setting the reinforcing rib 135, and the reinforcing plate 130 is fixedly connected to the inner plate 110 on the side facing the inner plate 110 by bonding the reinforcing rib 135 and the inner plate 110, which helps to simplify the structure of the reinforcing plate 130.

[0056] Based on the same inventive concept, this application also provides a D-pillar, including a D-pillar body and the vehicle D-pillar lower connector 100 provided above. The D-pillar body is fixedly connected to the vehicle D-pillar lower connector 100 along one side of its length. The fixed connection between the D-pillar body and the vehicle D-pillar lower connector 100 can be varied, including bolting, welding, riveting, etc. Since this D-pillar uses the vehicle D-pillar lower connector 100 provided in this application, it naturally possesses all the beneficial effects of the vehicle D-pillar lower connector 100 of this application, which will not be elaborated upon here.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0058] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0059] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations 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 vehicle D-pillar under-mount connector, characterized in that, include: An inner plate and an outer plate, wherein the inner plate and the outer plate are fixedly connected and form a first cavity; A reinforcing plate is located inside the first cavity, and the reinforcing plate has a second cavity with the opening of the second cavity facing the outer plate; Wherein, the reinforcing plate is fixedly connected to the outer plate on both sides along the first direction; the reinforcing plate is located between the inner plate and the outer plate on both sides along the second direction, so that the inner plate and the outer plate clamp the reinforcing plate (130), and the first direction and the second direction are set at an angle; the side of the reinforcing plate facing the inner plate is fixedly connected to the inner plate; The reinforcing plate includes a first bottom wall, a first side wall, a plurality of first flanges, and a plurality of second flanges; the first bottom wall and the first side wall are fixedly connected and enclose the second cavity; the first flanges are fixedly connected to the first side wall or the first bottom wall; the second flanges are fixedly connected to the first side wall or the first bottom wall. Multiple first flanges are disposed on both sides of the reinforcing plate along a first direction and are fixedly connected to the outer plate; multiple second flanges are disposed on both sides of the reinforcing plate along a second direction and are located between the inner plate and the outer plate, so that the inner plate and the outer plate clamp the second flanges. The outer panel includes a second bottom wall and a second side wall that are fixedly connected; the inner panel includes a third bottom wall and a third side wall that are fixedly connected; the second bottom wall and the third bottom wall are arranged opposite to each other, and the second side wall and the third side wall are arranged opposite to each other; The second bottom wall has a first stop on the side away from the second side wall, and the second side wall has a second stop on the side away from the second bottom wall; the third bottom wall has a third stop on the side away from the third side wall, and the third side wall has a fourth stop on the side away from the third bottom wall. The second flange near the third bottom wall is disposed on the first side wall of the reinforcing plate and is located between the second stop and the third stop, so that the second stop and the third stop clamp the second flange; The second flange, located near the second bottom wall, is disposed on the first bottom wall of the reinforcing plate and is situated between the first stop and the fourth stop, such that the first stop and the fourth stop clamp the second flange.

2. The vehicle D-pillar under-joint according to claim 1, characterized in that, The second flange (134), the second stop (1221) and the third stop (1111) are fixed by welding in three layers, and the second flange (134), the first stop (1211) and the fourth stop (1121) are fixed by welding in three layers.

3. The vehicle D-pillar under-joint according to claim 1, characterized in that, Multiple first flanges (133) are provided on the first sidewall (132) of the reinforcing plate (130). Some of the first flanges (133) are fixedly connected to the second bottom wall (121), and other first flanges (133) are fixedly connected to the second sidewall (122).

4. The vehicle D-pillar under-joint according to claim 1, characterized in that, The reinforcing plate (130) is provided with a plurality of reinforcing ribs (135), and the plurality of reinforcing ribs (135) are located outside the second cavity (130a).

5. The vehicle D-pillar under-joint according to claim 4, characterized in that, Some of the reinforcing ribs (135) are located on both the first bottom wall (131) and the first side wall (132).

6. The vehicle D-pillar under-joint according to claim 5, characterized in that, The reinforcing rib (135) located on the first bottom wall (131) has a bonding plane (135a) facing the inner plate (110). The bonding plane (135a) and the inner plate (110) are bonded and fixed, so that the side of the reinforcing plate (130) facing the inner plate (110) is fixedly connected to the inner plate (110).

7. The vehicle D-pillar under-joint according to any one of claims 1-6, characterized in that, The reinforcing plate (130) is welded and fixed to the outer plate (120) on both sides along the first direction.

8. A D-pillar, characterized in that, The device includes a D-pillar body and a vehicle D-pillar lower connector as described in any one of claims 1-7, wherein the D-pillar body is fixedly connected to the vehicle D-pillar lower connector on one side along its length direction.

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