D-pillar and body rear section assembly

Abstract

The utility model discloses a kind of D column and car body rear section assembly, including D column joint and D column connecting plate, the D column connecting plate is connected in the bottom of D column joint;When using, D column joint is located at the top of D column and connects rear quarter window inner panel and back door frame inner panel;D column connecting plate is located at the bottom of D column and connects rear wheel cover, rear quarter window inner panel and back door frame inner panel;It can reduce the use of car body parts, and then shorten the assembly size chain of parts matching structure, beneficial to the control of product quality.

Description

Technical Field

[0001] This utility model relates to the field of vehicle body and its components, specifically to a D-pillar and rear body assembly. Background Technology

[0002] In the process of optimizing vehicle components in the existing technology, the main approach is to optimize the structure by adding corresponding structural reinforcements. After multiple iterations of the vehicle body, there are many parts in the vehicle body. Although the rigidity requirements of the body are met, the body weight increases accordingly, and the mold opening cost and production cost of the parts are increased accordingly. Furthermore, the long assembly dimension chain of the multi-part structure leads to poor body structure precision, which is not conducive to controlling product quality.

[0003] Therefore, to solve the above problems, a D-pillar and rear body assembly is needed that can reduce the use of body parts, thereby shortening the assembly dimension chain of the parts mating structure and facilitating product quality control. Utility Model Content

[0004] In view of this, the purpose of this utility model is to overcome the defects in the prior art and provide a D-pillar and rear body assembly that can reduce the use of body parts, thereby shortening the assembly dimension chain of the parts mating structure and facilitating product quality control.

[0005] The D-pillar of this utility model includes a D-pillar joint and a D-pillar connecting plate, wherein the D-pillar connecting plate is connected to the bottom of the D-pillar joint;

[0006] In use, the D-pillar connector is located at the top of the D-pillar to connect the inner panel of the rear triangular window and the inner panel of the rear door frame; the D-pillar connecting plate is located at the bottom of the D-pillar to connect the rear wheel arch, the inner panel of the rear triangular window, and the inner panel of the rear door frame.

[0007] Furthermore, the D-pillar connecting plate has an adhesive groove for setting the adhesive; in use, the D-pillar connecting plate is bonded and fixed to the side panel using the adhesive.

[0008] Furthermore, the D-pillar connecting plate has a tailgate support rod mounting position for setting the tailgate support rod; in use, the tailgate support rod is set at the tailgate support rod mounting position.

[0009] Furthermore, the D-pillar connecting plate has functional holes.

[0010] This solution also discloses a rear body assembly, including the D-pillar, and also including the rear quarter window inner panel, the tailgate frame inner panel and the rear wheel cover;

[0011] The inner panel of the rear triangular window is assembled on top of the rear wheel arch, and the inner panel of the rear door frame is assembled at a position behind the inner panel of the rear triangular window.

[0012] The D-pillar joint is located at the rear of the top corner of the rear triangular window, connecting the inner panel of the rear triangular window and the inner panel of the rear door frame; the D-pillar connecting plate is located at the lower rear corner of the rear triangular window, connecting the rear wheel arch, the inner panel of the rear triangular window, and the inner panel of the rear door frame.

[0013] Furthermore, the D-pillar joint and the D-pillar connecting plate are connected on the outside of the inner panel of the rear triangular window;

[0014] The D-pillar joint and the D-pillar connecting plate are each bent inwards, and respectively form the front section and rear section of the reinforcing cavity that are connected to the inner panel of the rear triangular window and the inner panel of the rear door frame.

[0015] Furthermore, the D-pillar connecting plate has a rear sealing portion that closes the rear port of the rear section of the reinforcing cavity.

[0016] Furthermore, the rear section assembly also includes a lower crossbeam for the rear quarter window, which connects the bottom of the rear quarter window to the top of the rear wheel arch.

[0017] Furthermore, the lower crossbeam of the rear triangular window is parallel to the bottom edge of the rear triangular window, the front end of the lower crossbeam of the rear triangular window is close to the lower front corner of the rear triangular window, and the rear end of the lower crossbeam of the rear triangular window is connected to the D-pillar connecting plate.

[0018] Furthermore, the top of the rear wheel cover protrudes upward to form a functional cover, and the top of the functional cover is connected to the inner panel of the rear triangular window through the lower crossbeam of the rear triangular window.

[0019] Furthermore, the rear section assembly also includes a rear wheel cover connecting plate located on the front side of the functional cover, which connects the rear wheel cover and the inner panel of the rear quarter window.

[0020] The beneficial effects of this utility model are as follows: The D-pillar and rear body assembly disclosed in this utility model, through the use of the D-pillar joint and D-pillar connecting plate, can improve the rigidity of the D-pillar area. After the D-pillar is applied to the rear body assembly, the rigidity of the rear body is also correspondingly improved, especially the rigidity in the height direction of the rear wheel arch. This improves the dynamic rigidity of the rear shock absorber mounting point located on the rear wheel arch. When the rear body assembly with this D-pillar is applied to a vehicle, vibration at the rear shock absorber location is suppressed, significantly reducing abnormal body sway on bumpy roads and improving body modal characteristics. This solution optimizes the overall vehicle NVH (noise, vibration, and harshness) performance. The integrated design of the D-pillar joint and connecting plate reduces the number of components used at the D-pillar, addressing the issues of numerous reinforcing components, high production costs, and complex assembly in existing technologies. It boasts advantages such as simple structure, significant weight reduction, and a shortened assembly dimension chain for components. Furthermore, it facilitates improved assembly precision of components in the rear-section assembly, enhancing product quality control. This solution also reduces weld points and fasteners, optimizing the collision force transmission path and improving safety performance. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the structure of the D-pillar connecting plate of this utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of the D-pillar connecting plate of this utility model. Figure 2 ;

[0024] Figure 3 This is a structural schematic diagram of the rear section assembly of the vehicle body according to this utility model;

[0025] Figure 4 This is an exploded view of the rear section assembly of the vehicle body of this utility model. Figure 1 (Outer side);

[0026] Figure 5 This is an exploded view of the rear section assembly of the vehicle body of this utility model. Figure 1 (Inner side).

[0027] Reference numerals: D-pillar connecting plate 1, glue groove 11, tailgate support rod mounting position 12, functional hole 13, rear sealing part 14, D-pillar joint 2, front sealing part 21, rear triangular window inner panel 3, rear triangular window 31, rear edge 32, tailgate frame inner panel 4, rear wheel cover 5, functional cover 51, through hole 52, rear triangular window lower crossbeam 6, rear wheel cover connecting plate 7. Detailed Implementation

[0028] Figures 1-5 This is a schematic diagram of the structure of the present invention, as shown below. Figures 1-5 As shown, the D-pillar in this embodiment includes a D-pillar connector 2 and a D-pillar connecting plate 1. The D-pillar connecting plate 1 is connected to the bottom of the D-pillar connector 2. In use, the D-pillar connector 2 is located at the top of the D-pillar and connects the inner panel 3 of the rear triangular window and the inner panel 4 of the rear door frame. The D-pillar connecting plate 1 is located at the bottom of the D-pillar and connects the rear wheel cover 5, the inner panel 3 of the rear triangular window, and the inner panel 4 of the rear door frame.

[0029] The use of D-pillar connector 2 and D-pillar connecting plate 1 enhances the rigidity of the D-pillar area. When the D-pillar is applied to the rear body assembly, the rigidity of the rear body is correspondingly improved, especially the rigidity in the height direction of the rear wheel arch 5. This increases the dynamic rigidity of the rear shock absorber mounting point located on the rear wheel arch 5. When the rear body assembly with this D-pillar is applied to the vehicle, vibration at the rear shock absorber location is suppressed, significantly reducing abnormal body sway on bumpy roads, improving body modality, and optimizing overall NVH (noise, vibration, and harshness) performance. The integrated design of D-pillar connector 2 and D-pillar connecting plate 1 also reduces the number of components used at the D-pillar, solving the problems of numerous reinforcing components, high production costs, and complex assembly in existing technologies. It offers advantages such as simple structure, significant weight reduction, and a shortened assembly dimension chain for components. Furthermore, it facilitates improved assembly precision of components in the rear body assembly, improving product quality control. This solution also reduces the number of weld points and fasteners, optimizing the collision force transmission path and enhancing safety performance.

[0030] This utility model also discloses a rear section assembly of the vehicle body, which includes a D-pillar, a rear quarter window inner panel 3, a tailgate frame inner panel 4, and a rear wheel arch 5. This solution is applied to the rear of the vehicle. The rear quarter window inner panel 3 is mounted on top of the rear wheel arch 5, and the tailgate frame inner panel 4 is mounted at a rear position of the rear quarter window inner panel 3. The D-pillar includes a D-pillar connector 2 and a D-pillar connecting plate 1. The D-pillar connector 2 is located at the rear side of the top corner of the rear quarter window 31 and connects the rear quarter window inner panel 3 and the tailgate frame inner panel 4. The D-pillar connecting plate 1 is located at the lower rear corner of the rear quarter window 31 and connects the rear wheel arch 5, the rear quarter window inner panel 3, and the tailgate frame inner panel 4. The D-pillar connector 2 and D-pillar connecting plate 1 assembled in this solution, after being applied to the rear section assembly of the vehicle body, connect the rear quarter window inner panel 3 and the tailgate frame inner panel 4 at the top of the D-pillar, and connect the rear quarter window inner panel 3, the tailgate frame inner panel 4 and the rear wheel arch 5 at the bottom of the D-pillar. This allows the D-pillar to achieve linkage between the tailgate frame inner panel 4, the rear quarter window inner panel 3 and the rear wheel arch 5 through the assembly of the integrated D-pillar connector 2 and D-pillar connecting plate 1. The structure of the rear section assembly of the vehicle body is more compact, the structural strength is higher, the force transmission path is clearer, the safety is better, and it is more conducive to improving the overall vehicle quality.

[0031] In this embodiment, the D-pillar connecting plate 1 has an adhesive groove 11 for setting the adhesive. In use, the D-pillar connecting plate 1 is bonded and fixed to the side outer panel by the adhesive. The setting of the adhesive groove 11 on the D-pillar connecting plate 1 further improves the connection strength between the D-pillar and the corresponding side outer panel. In particular, the D-pillar connecting plate 1 is used as an independent component on the D-pillar. Combined with the D-pillar connector 2, it connects the rear quarter window inner panel 3, the tailgate frame inner panel 4 and the rear wheel cover 5, which can further ensure the force transmission effect of the rear section of the vehicle body and improve the body modality and the local stiffness of the side outer panel.

[0032] In this embodiment, the D-pillar connecting plate 1 also has a tailgate support rod mounting position 12 for setting the tailgate support rod; the tailgate support rod mounting position 12 is located on the outside of the tailgate frame inner panel 4. In use, the tailgate support rod is installed on the tailgate support rod mounting position 12; the integration of the tailgate support rod mounting position 12 on the D-pillar connecting plate 1 can reduce the use of auxiliary assembly plates and ensure the rigidity and strength of the tailgate support rod mounting position 12; when the tailgate support rod mounting position 12 is subjected to force, the force is transmitted by the D-pillar connecting plate 1 to the D-pillar joint 2, the rear quarter window inner panel 3, the tailgate frame inner panel 4 and the rear wheel cover 5, so that the structural strength of the tailgate support rod after assembly on the rear section assembly of the vehicle body is guaranteed, and due to the reduction of component welding points and fastening points, its dynamic rigidity is better.

[0033] In this embodiment, a functional hole 13 is provided on the D-pillar connecting plate 1. In this solution, the functional hole 13 is used as either a welding through hole 52 or a weight reduction hole for weight reduction, so as to make the D-pillar connecting plate 1 lighter and facilitate the welding of parts, and ensure the overall structural reliability of the rear section of the vehicle body. The functional hole 13 is opened according to the actual situation, and will not be described in detail here.

[0034] In this embodiment, the rear triangular window inner panel 3 has a rear edge 32 located behind the rear triangular window 31, and the rear door frame inner panel 4 is located inside the rear triangular window inner panel 3 and connected to the rear edge 32; the D-pillar joint 2 and the D-pillar connecting plate 1 are located outside the rear triangular window inner panel 3 and connected to the rear edge 32. In use, the D-pillar joint 2 and the D-pillar connecting plate 1 are connected to the rear edge 32 respectively, and after the D-pillar joint 2 and the D-pillar connecting plate 1 are connected, they approximately cover the rear edge 32 of the rear triangular window inner panel 3, connecting the rear triangular window inner panel 3, the rear door frame inner panel 4 and the rear wheel cover 5, further improving the structural strength of the D-pillar and ensuring the reliability of force transmission.

[0035] In this embodiment, the joint connecting the D-pillar joint 2 and the D-pillar connecting plate 1 is approximately perpendicular to the joint connecting the inner panel of the tailgate frame 4 and the inner panel of the rear triangular window 3, which further enhances the torsional resistance of the structure and provides a certain support strength. When this solution is applied to a vehicle, it helps to improve the vehicle body modality and NVH performance.

[0036] In this embodiment, the D-pillar joint 2 and the D-pillar connecting plate 1 are each bent inwards, forming a front and rear section of a reinforcing cavity that are interconnected with the inner panel of the rear quarter window 3 and the inner panel of the tailgate frame 4, respectively. The bending structure enhances strength within a limited space through the cavity shape, reducing the need for additional reinforcing components, lowering weight, and avoiding encroachment on the vehicle's interior space. The inward bending of the D-pillar joint 2, together with the inner panel of the rear quarter window 3 and the inner panel of the tailgate frame 4, forms the front section of the reinforcing cavity, enhancing the rigidity of the upper part of the D-pillar and reducing the risk of deformation under vehicle stress. The inward bending of the D-pillar connecting plate 1, together with the inner panel of the rear quarter window 3 and the inner panel of the tailgate frame 4, forms the rear section of the reinforcing cavity, strengthening the support stability of the lower part of the D-pillar. Furthermore, the tailgate support rod is installed on the D-pillar connecting plate 1, providing higher torsional strength in scenarios involving frequent tailgate opening and closing or rear-end collisions. "Inner" refers to the direction facing the interior of the vehicle, while "outer" is the opposite direction and will not be elaborated further here.

[0037] The front and rear sections of the reinforced cavity constitute a reinforced chamber located in the D-pillar, which can improve the energy absorption effect of the D-pillar. In cross-section, the periphery of the reinforced chamber is a continuous closed ring, and the cross-section is the section perpendicular to the length of the reinforced chamber, so as to reduce wind noise and road noise entering the vehicle and improve sealing reliability. At the same time, the front and rear sections of the reinforced cavity are connected to form a continuous force transmission channel. The cavity through design of the reinforced chamber can avoid weak points at the interface caused by segmented reinforcement, further simplify the process and improve material utilization. It can also disperse the rear collision energy along the extension direction of the D-pillar and avoid local crushing caused by stress concentration.

[0038] In this embodiment, the D-pillar connecting plate 1 has a rear sealing portion 14 that closes the rear port of the rear section of the reinforcing cavity, and the rear sealing portion 14 is close to the lower rear corner of the rear triangular window 31; the D-pillar joint 2 has a front sealing portion 21 that closes the front port of the front section of the reinforcing cavity, and the front sealing portion 21 is close to the apex corner of the rear triangular window 31; more specifically, the rear sealing portion 14 is formed by bending inward from the rear edge of the D-pillar connecting plate 1, and the front sealing portion 21 is formed by bending inward from the front edge of the D-pillar joint 2; the arrangement of the front sealing portion 21 and the rear sealing portion 14 enables the through-through front section and rear section of the reinforcing cavity to form a strip-shaped closed cavity conforming to the shape of the D-pillar, making the structural strength of the D-pillar higher and its support and force transmission capabilities better.

[0039] In this embodiment, the rear section assembly of the vehicle body also includes a lower crossbeam 6 for the rear quarter window, which connects the bottom of the rear quarter window 31 and the top of the rear wheel arch 5. The lower crossbeam 6 further improves the connection reliability between the rear quarter window 31 and the rear wheel arch 5. Furthermore, the lower crossbeam 6 is parallel to the bottom edge of the rear quarter window 31, the front end of the lower crossbeam 6 is close to the lower front corner of the rear quarter window 31, and the rear end of the lower crossbeam 6 is connected to the D-pillar connecting plate 1. The D-pillar joint 2, the D-pillar connecting plate 1, and the lower crossbeam 6 together form a "C"-shaped structure with the opening facing the C-pillar, so that the force transmission path of the rear section of the vehicle body includes at least the path from the D-pillar upward to the roof crossbeam, the path from the D-pillar downward to the wheel arch, and the path from the D-pillar forward to the C-pillar, resulting in better force transmission capability, which is conducive to dispersing the force of a rear collision and improving safety.

[0040] In this embodiment, the top of the rear wheel cover 5 protrudes upward to form a functional cover 51. The top of the functional cover 51 is connected to the inner panel 3 of the rear quarter window through the lower crossbeam 6 of the rear quarter window. A through hole 52 is provided on the functional cover 51 to allow vehicle accessories to pass through the functional cover 51 and be assembled on the vehicle, such as a charging connector, etc., which will not be described in detail here.

[0041] In this embodiment, the rear section assembly of the vehicle body also includes a rear wheel cover connecting plate 7 located on the front side of the functional cover 51, connecting the rear wheel cover 5 and the inner panel of the rear quarter window 3. The top of the rear wheel cover connecting plate 7 is connected to the C-pillar near the lower front corner of the rear quarter window 31, and the front end of the lower crossbeam 6 of the rear quarter window is close to the top of the rear wheel cover connecting plate 7. This further improves the structural stability of the rear section assembly of the vehicle body and enhances the reliability of force transmission.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A D-pillar, characterized in that: It includes a D-pillar connector and a D-pillar connecting plate, wherein the D-pillar connecting plate is connected to the bottom of the D-pillar connector; In use, the D-pillar connector is located at the top of the D-pillar to connect the inner panel of the rear triangular window and the inner panel of the rear door frame; the D-pillar connecting plate is located at the bottom of the D-pillar to connect the rear wheel arch, the inner panel of the rear triangular window, and the inner panel of the rear door frame.

2. The D-pillar according to claim 1, characterized in that: The D-pillar connecting plate has a groove for setting the connecting adhesive; in use, the D-pillar connecting plate is bonded and fixed to the outer side panel by the connecting adhesive.

3. The D-pillar according to claim 1, characterized in that: The D-pillar connecting plate has a tailgate support rod mounting position for setting the tailgate support rod; in use, the tailgate support rod is set at the tailgate support rod mounting position.

4. The D-pillar according to claim 1, characterized in that: Functional holes are provided on the D-pillar connecting plate.

5. A rear section assembly of a vehicle body, characterized in that: Including the D-pillar as described in any one of claims 1-4, it further includes the inner panel of the rear triangular window, the inner panel of the rear door frame, and the rear wheel cover; The inner panel of the rear triangular window is assembled on top of the rear wheel arch, and the inner panel of the rear door frame is assembled at a position behind the inner panel of the rear triangular window. The D-pillar joint is located at the rear of the top corner of the rear triangular window, connecting the inner panel of the rear triangular window and the inner panel of the rear door frame; the D-pillar connecting plate is located at the lower rear corner of the rear triangular window, connecting the rear wheel arch, the inner panel of the rear triangular window, and the inner panel of the rear door frame.

6. The rear body assembly according to claim 5, characterized in that: The D-pillar joint and D-pillar connecting plate are connected on the outside of the inner panel of the rear triangular window. The D-pillar joint and the D-pillar connecting plate are each bent inwards, and respectively form the front section and rear section of the reinforcing cavity that are connected to the inner panel of the rear triangular window and the inner panel of the rear door frame.

7. The rear body assembly according to claim 6, characterized in that: The D-pillar connecting plate has a rear sealing section that closes the rear port of the rear section of the reinforcing cavity.

8. The rear body assembly according to claim 5, characterized in that: It also includes a lower crossbeam for the rear triangular window, which connects the bottom of the rear triangular window to the top of the rear wheel arch.

9. The rear body assembly according to claim 8, characterized in that: The lower crossbeam of the rear triangular window is parallel to the bottom edge of the rear triangular window. The front end of the lower crossbeam of the rear triangular window is close to the lower front corner of the rear triangular window, and the rear end of the lower crossbeam of the rear triangular window is connected to the D-pillar connecting plate.

10. The rear body assembly according to claim 8, characterized in that: The top of the rear wheel cover protrudes upward to form a functional cover, and the top of the functional cover is connected to the inner panel of the rear triangular window through the lower crossbeam of the rear triangular window; it also includes a rear wheel cover connecting plate located in front of the functional cover to connect the rear wheel cover and the inner panel of the rear triangular window.

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