Vehicle body side wall rear reinforcing structure and vehicle
By designing a seamless connection between the C-pillar, D-pillar and rear wheel arch outer panel in the rear body side reinforcement structure, the problem of unsatisfactory NVH performance at the rear body side was solved, and the overall structural strength and NVH performance were improved.
Patent Information
- Application Number
- CN202511126407.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2025-10-17
AI Technical Summary
The NVH performance of the existing body side rear reinforcement structure is not ideal, especially the opening structure in the connection area between the C-pillar and the D-pillar, which affects the NVH performance of the entire vehicle.
A rear body side reinforcement structure is designed, including a rear wheel arch outer panel, a C-pillar, a D-pillar, and a CD-pillar connecting body. By overlapping the C-pillar upper connecting plate, the C-pillar lower connecting plate, and the rear retractor mounting plate, a seamless connection is formed to increase the force transmission path, and the overall strength is improved through the structural cross-section and overlap design.
It significantly improves the NVH performance, reduces the risk of cracking of the CD column connection body, and improves the overall stiffness and durability of the structure to meet the needs of production and manufacturing.
Smart Images
Figure CN120792964A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of vehicles, and more particularly to a rear body side reinforcement structure and vehicle. BACKGROUND
[0002] With the increasing demand of consumers for the NVH (Noise, Vibration and Harshness) performance of automobiles, improving the NVH performance of the vehicle can not only improve the driving comfort and the quality of the vehicle, but also reduce the energy consumption. Therefore, the NVH technology is a high-end field in automobile manufacturing, and its complexity and importance are self-evident.
[0003] The C-pillar and the D-pillar at the rear of the vehicle body are key positions for improving the NVH performance of the vehicle body. The connection area of the C-pillar and the D-pillar of some vehicle models cannot be directly closed, and there is a large opening structure, and the NVH performance needs to be further improved.
[0004] Therefore, there is a need for a rear body side reinforcement structure and vehicle to solve the above problems. SUMMARY
[0005] Therefore, the purpose of the present application is to provide a rear body side reinforcement structure and vehicle to solve the problem of unsatisfactory NVH performance of the existing rear body side reinforcement structure.
[0006] To achieve the above purpose, the present application provides a rear body side reinforcement structure, which comprises:
[0007] a rear wheel cover outer panel;
[0008] a C-pillar, the C-pillar comprising a C-pillar main body;
[0009] a D-pillar, the D-pillar comprising a D-pillar main body;
[0010] a CD-pillar connecting main body, the C-pillar, the D-pillar and the rear wheel cover outer panel are connected with the CD-pillar connecting main body; the CD-pillar connecting main body comprises a C-pillar upper connecting panel, a C-pillar lower connecting panel and a rear roller retractor mounting panel lapped on the C-pillar lower connecting panel, the C-pillar upper connecting panel and the C-pillar lower connecting panel are connected and located on the outer side of the CD-pillar connecting main body, the C-pillar lower connecting panel is used for connecting the C-pillar upper connecting panel and the rear wheel cover outer panel; the rear roller retractor mounting panel is located on the inner side of the CD-pillar connecting main body and is used for connecting the C-pillar main body and the D-pillar main body.
[0011] Optionally, the C-pillar main body comprises a C-pillar inner panel and a C-pillar reinforcing panel, the C-pillar inner panel is seamlessly connected with the C-pillar upper connecting panel, the rear roller retractor mounting panel and the D-pillar main body; the C-pillar reinforcing panel is arranged on the C-pillar inner panel.
[0012] Optionally, the D-pillar body comprises a D-pillar reinforcement plate, an upper rear roof cross beam connecting plate, a lower rear roof cross beam connecting plate and a D-pillar lower connecting plate; the upper rear roof cross beam connecting plate and the D-pillar reinforcement plate are connected and both are located at the outer side of the D-pillar body, the upper rear roof cross beam connecting plate is seamlessly connected with the C-pillar inner plate, and the D-pillar reinforcement plate is connected with the C-pillar upper connecting plate; the lower rear roof cross beam connecting plate and the D-pillar lower connecting plate are connected and both are located at the inner side of the D-pillar body, the lower rear roof cross beam connecting plate is seamlessly connected with the C-pillar inner plate; and the D-pillar lower connecting plate is connected with the rear roll-up device mounting plate.
[0013] Optionally, the C-pillar upper connecting plate comprises a first main plate body and a first welding edge, a second welding edge, a third welding edge, a fourth welding edge and a fifth welding edge connected in sequence along the circumferential edge of the first main plate body; the first main plate body and the third welding edge are both provided with a first process hole, and at least one side edge of the first process hole is provided with a first reinforcing rib; the first welding edge, the fourth welding edge and the fifth welding edge are all connected with the C-pillar inner plate, the second welding edge is connected with the D-pillar reinforcement plate, and the third welding edge is connected with the C-pillar lower connecting plate and the rear wheel cover outer plate.
[0014] Optionally, the first main plate body comprises a first side face, a first step face and a second side face connected in sequence, the first side face and the second side face both extend towards the same side direction, and the free ends of the first side face and the second side face are connected together with the first welding edge and the third welding edge respectively; the first step face overlaps with the C-pillar lower connecting plate, and the first reinforcing rib is arranged on the first step face.
[0015] Optionally, the C-pillar lower connecting plate comprises a second main plate body and a sixth welding edge, a seventh welding edge, an eighth welding edge and a ninth welding edge connected in sequence along the circumferential edge of the second main plate body; the second main plate body is provided with a second process hole, and opposite side edges of the second process hole are respectively provided with a second reinforcing rib and a third reinforcing rib; the seventh welding edge, and the opposite lower parts of the sixth welding edge and the eighth welding edge are all connected with the rear wheel cover outer plate, and the ninth welding edge, and the opposite upper parts of the sixth welding edge and the eighth welding edge are all connected with the C-pillar upper connecting plate.
[0016] Optionally, the second main plate body comprises a fourth side face, a third flat face and a fifth side face connected in sequence, the fourth side face and the fifth side face both extend towards the same side direction, and the free ends of the fourth side face and the fifth side face are connected together with the sixth welding edge and the eighth welding edge respectively; the second reinforcing rib and the third reinforcing rib are arranged on the sixth welding edge and the eighth welding edge respectively.
[0017] Optionally, the rear roll-up mounting plate comprises a third main plate body and a tenth welding edge, an eleventh welding edge and a twelfth welding edge connected in sequence along the circumferential edge of the third main plate body; the third main plate body is provided with a third process hole and a rear roll-up mounting hole, and opposite sides of the third process hole and / or the rear roll-up mounting hole are respectively provided with a fourth reinforcing rib; the tenth welding edge is connected with the C-column inner plate, and the eleventh welding edge and the twelfth welding edge are both connected with the D-column lower connecting plate.
[0018] Optionally, the third main plate body comprises a sixth side surface and a fourth plane connected in sequence, and free ends of the sixth side surface and the fourth plane are connected together with the tenth welding edge and the twelfth welding edge respectively; the third process hole and the rear roll-up mounting hole are arranged on the sixth side surface and the fourth plane respectively, and the fourth reinforcing rib is arranged on the tenth welding edge and the twelfth welding edge.
[0019] The application also provides a vehicle, which comprises the vehicle body side wall rear reinforcing structure as described above.
[0020] As can be seen from the above, the vehicle body side wall rear reinforcing structure and the vehicle provided by the application have the following advantages compared with the prior art: the C-column lower connecting plate can connect the rear wheel cover outer plate and the C-column upper connecting plate by adopting the vehicle body side wall rear reinforcing structure. The lap joint edge of the C-column lower connecting plate and the rear roll-up mounting plate is close enough, the rear roll-up mounting plate plays a supporting role, the force transmission path is increased, the problem of insufficient Y-direction support of the CD-column connecting main body is solved, and the risk of cracking of the CD-column connecting main body is greatly reduced. By adopting the above structure, there is no opening in the CD-column connecting area, and the overall structural strength and rigidity are high through the structure section and lap joint design; the rear wheel cover outer plate, the C-column and the D-column no longer need additional reinforcing plates to transmit load and vibration, the generality is strong, the durability is good, the NVH performance is obviously improved, and the requirements of structural durability and production and manufacturing are met. BRIEF DESCRIPTION OF DRAWINGS
[0021] The above features and technical advantages of the application will become more apparent and easier to understand from the following description of its embodiments with reference to the drawings.
[0022] Figure 1 It is a schematic view of the side wall rear reinforcing structure adopted in the specific embodiments of the application.
[0023] Figure 2 It is a schematic view of the side wall rear reinforcing structure. Figure 1 It is a side view of the side wall rear reinforcing structure.
[0024] Figure 3 It is a schematic view of the connection state of the C-column lower connecting plate and the rear roll-up mounting plate. Figure 1 It is a schematic view of the connection state of the C-column lower connecting plate and the rear roll-up mounting plate.
[0025] Figure 4 Fig. 1 is a schematic view of a C-pillar upper connecting plate. Figure 1 Fig. 2 is a schematic view of a C-pillar lower connecting plate and a rear wheel cover outer plate structure.
[0026] Figure 5 Fig. 3 is a schematic view of a C-pillar upper connecting plate. Figure 1 Fig. 4 is a schematic view of a C-pillar upper connecting plate.
[0027] Figure 6 Fig. 5 is an A-A sectional view of a C-pillar upper connecting plate. Figure 5 Fig. 6 is a schematic view of a C-pillar lower connecting plate.
[0028] Figure 7 Fig. 7 is a schematic view of a C-pillar lower connecting plate. Figure 1 Fig. 8 is a B-B sectional view of a C-pillar lower connecting plate.
[0029] Figure 8 Fig. 9 is a schematic view of a rear roller collector mounting plate. Figure 7 Fig. 10 is a C-C sectional view of a rear roller collector mounting plate.
[0030] Figure 9 Fig. 11 is a schematic view of a rear roller collector mounting plate. Figure 1 Fig. 12 is a schematic view of a rear roller collector mounting plate.
[0031] Figure 10 Fig. 13 is a C-C sectional view of a rear roller collector mounting plate. Figure 8 Fig. 14 is a schematic view of a rear roller collector mounting plate.
[0032] Wherein the reference signs:
[0033] 1, C-pillar lower connecting plate; 1-1, third plane; 1-2, sixth welding edge; 1-3, eighth welding edge; 1-4, fourth side face; 1-5, fifth side face; 1-6, seventh welding edge; 1-7, ninth welding edge; 1-8, second process hole; 1-9, second reinforcing rib; 1-10, third reinforcing rib; 2, rear wheel cover outer plate; 3, C-pillar upper connecting plate; 3-1, first welding edge; 3-2, first side face; 3-3, first plane; 3-4, third side face; 3-5, second plane; 3-6, second side face; 3-7, third welding edge; 3-8, second welding edge; 3-9, fifth welding edge; 3-10, fourth welding edge; 3-11, first process hole; 3-12, weight-reducing hole; 3-13, first reinforcing rib; 4, C-pillar inner plate; 5, C-pillar reinforcing plate; 6, D-pillar reinforcing plate; 7, rear roof cross beam upper connecting plate; 8, rear roller collector mounting plate; 8-1, tenth welding edge; 8-2, sixth side face; 8-3, fourth plane; 8-4, twelfth welding edge; 8-5, eleventh welding edge; 8-6, rear roller collector mounting hole; 8-7, third process hole; 8-8, fourth reinforcing rib; 9, rear roof cross beam lower connecting plate; 10, D-pillar lower connecting plate. DETAILED DESCRIPTION
[0034] For the purpose, technical solutions and advantages of the present application to be more clearly understood, the present application is further described in detail below with reference to specific embodiments and with reference to the accompanying drawings. Identical parts are denoted by identical reference numerals in the following description. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings. The words "inner" and "outer" are used to refer to the directions towards or away from the geometric center of a particular component.
[0035] Figure 1 A schematic view of a side wall rear reinforcement structure used in the embodiments of the present application. Figure 2 A Figure 1 A side view of the schematic view of the side wall rear reinforcement structure. Figure 3 A Figure 1 A schematic view of the connection state of the C-pillar lower connecting plate and the rear roll-up receiver mounting plate. Figure 4 A Figure 1 A schematic view of the connection state of the C-pillar upper connecting plate, the C-pillar lower connecting plate and the rear wheel cover outer plate structure. As Figures 1 to 4 shown, the body side wall rear reinforcement structure includes a rear wheel cover outer plate 2, a C-pillar, a D-pillar and a CD-pillar connecting body.
[0036] The body side wall rear reinforcement structure includes a rear wheel cover outer plate 2, a C-pillar, a D-pillar and a CD-pillar connecting body; the C-pillar includes a C-pillar body; the D-pillar includes a D-pillar body; the C-pillar, the D-pillar and the rear wheel cover outer plate 2 are all connected with the CD-pillar connecting body; the CD-pillar connecting body includes a C-pillar upper connecting plate 3, a C-pillar lower connecting plate 1 and a rear roll-up receiver mounting plate 8 lapping on the C-pillar lower connecting plate; the C-pillar upper connecting plate 3 and the C-pillar lower connecting plate 1 are connected and are both located on the outer side of the CD-pillar connecting body, and the C-pillar lower connecting plate 1 is used to connect the C-pillar upper connecting plate 3 and the rear wheel cover outer plate 2; the rear roll-up receiver mounting plate 8 is located on the inner side of the CD-pillar connecting body and is used to connect the C-pillar body and the D-pillar body.
[0037] The C-pillar upper connecting plate 3, the C-pillar lower connecting plate 1 and the rear roll-up receiver mounting plate 8 constitute a CD-pillar connecting area, which is an important component in the force transmission path of the CD-pillar connecting area. During driving of the vehicle, the load and vibration transmitted from the ground through the rear shock absorber are partially transmitted according to the following path: front shock absorber seat → rear wheel cover outer plate 2 → C-pillar lower connecting plate 1 → C-pillar upper connecting plate 3, rear roll-up receiver mounting plate 8 → C-pillar, D-pillar.
[0038] The C-pillar lower connecting plate can connect the rear wheel cover outer plate and the C-pillar upper connecting plate. The C-pillar lower connecting plate and the rear roll-up device mounting plate have a lap joint edge close to each other, the rear roll-up device mounting plate plays a supporting role, increases the force transmission path, solves the problem of insufficient Y-direction support of the CD-pillar connecting main body, and greatly reduces the risk of cracking of the CD-pillar connecting main body. By adopting the above structure, there is no opening in the CD-pillar connecting area, and through the design of the cross section and the lap joint, the overall structural strength and rigidity are high; the rear wheel cover outer plate, the C-pillar and the D-pillar no longer need additional reinforcing plates to transmit loads and vibrations, have strong versatility, good durability, significantly improve the NVH performance, and meet the requirements of structural durability and production and manufacturing.
[0039] In an embodiment of the present application, the C-pillar further includes C-pillar upper and lower protective plates, a sealing element, a vehicle window glass and other components capable of realizing the basic functions of the C-pillar. Since they are not closely related to the technical problems solved by the present application, they are omitted.
[0040] In an embodiment of the present application, the D-pillar further includes a rear windshield glass, a side wall sheet metal and other components capable of realizing the basic functions of the D-pillar. Since they are not closely related to the technical problems solved by the present application, they are omitted.
[0041] Optionally, the C-pillar main body includes a C-pillar inner plate 4 and a C-pillar reinforcing plate 5, the C-pillar inner plate 4 is seamlessly connected with the C-pillar upper connecting plate 3, the rear roll-up device mounting plate 8 and the D-pillar main body, and the C-pillar reinforcing plate 5 is arranged on the C-pillar inner plate 4. The C-pillar inner plate 4 is effectively connected through the C-pillar upper connecting plate 3, the rear roll-up device mounting plate 8 and the D-pillar main body, so as to avoid affecting the structural rigidity due to the existence of gaps. Moreover, the C-pillar reinforcing plate 5 can further improve the structural rigidity of the C-pillar inner plate 4. By adopting the above C-pillar main body structure, the structural strength and rigidity are high, and the loads and vibrations can be effectively transmitted.
[0042] Optionally, the D-pillar main body includes a D-pillar reinforcing plate 6, a rear top cross beam upper connecting plate 7, a rear top cross beam lower connecting plate 9 and a D-pillar lower connecting plate 10; the rear top cross beam upper connecting plate 7 is connected with the D-pillar reinforcing plate 6 and located on the outer side of the D-pillar main body, the rear top cross beam upper connecting plate 7 is seamlessly connected with the C-pillar inner plate 4, and the D-pillar reinforcing plate 6 is connected with the C-pillar upper connecting plate 3; the rear top cross beam lower connecting plate 9 is connected with the D-pillar lower connecting plate 10 and located on the inner side of the D-pillar main body, the rear top cross beam lower connecting plate 9 is seamlessly connected with the C-pillar inner plate 4, and the D-pillar lower connecting plate 10 is connected with the rear roll-up device mounting plate 8. The D-pillar lower connecting plate 10 is connected with the rear roll-up device mounting plate 8, the rear top cross beam upper connecting plate 7 and the rear top cross beam lower connecting plate 9 are seamlessly connected with the C-pillar inner plate 4, so that the loads and vibrations of the rear roll-up device mounting plate 8 can be effectively transmitted to the C-pillar and the D-pillar; moreover, the D-pillar reinforcing plate 6 enhances the rigidity of the D-pillar main body and improves the durability. By adopting the above D-pillar main body structure, the structural strength and rigidity are high, and the loads and vibrations can be effectively transmitted.
[0043] Figure 5 As shown in the schematic view of the C-pillar upper connecting plate. Figure 1 As shown in the schematic view of the C-pillar upper connecting plate. Figure 6 As shown in the schematic view of the C-pillar upper connecting plate. Figure 5 As shown in the A-A sectional view of the C-pillar upper connecting plate. Figure 5 As shown in the A-A sectional view of the C-pillar upper connecting plate. Figure 6 As shown in the A-A sectional view of the C-pillar upper connecting plate, the C-pillar upper connecting plate 3 comprises a first main plate body, a first welding edge 3-1, a second welding edge 3-8, a third welding edge 3-7, a fourth welding edge 3-10, and a fifth welding edge 3-9.
[0044] Optionally, the C-pillar upper connecting plate 3 comprises a first main plate body and a first welding edge 3-1, a second welding edge 3-8, a third welding edge 3-7, a fourth welding edge 3-10, and a fifth welding edge 3-9 connected in sequence along the circumferential edge of the first main plate body; the first main plate body is substantially L-shaped, and the first welding edge 3-1, the second welding edge 3-8, the third welding edge 3-7, the fourth welding edge 3-10, and the fifth welding edge 3-9 form a closed structure on the edge of the first main plate body; wherein the first welding edge 3-1 is arranged on the vertical top end face of the first main plate body, the second welding edge 3-8 is arranged on the vertical left end face of the first main plate body, the third welding edge 3-7 is arranged on the vertical and horizontal bottom end face of the first main plate body, the fourth welding edge 3-10 is arranged on the horizontal right end face of the first main plate body, and the fifth welding edge 3-9 is arranged on the horizontal top end face of the first main plate body.
[0045] The first main plate body and the third welding edge 3-7 are both provided with a first process hole 3-11, which includes but is not limited to a welding through hole, and which can ensure sufficient welding tong access space during the body welding process and can be plugged with a corresponding metal plug.
[0046] The number of the first process hole 3-11 is multiple, one is arranged on the first main plate body and has a relatively large size; three first process holes 3-11 are arranged on the side of the third welding edge 3-7 close to the first main plate body, and the three first process holes 3-11 are sequentially and spacedly distributed along the length direction of the third welding edge and have a relatively small size.
[0047] In addition, in order to meet the lightweight requirement, multiple weight reduction holes 3-12, such as four, are arranged on the first main plate body and sequentially and spacedly distributed along the length direction of the first main plate body. The periphery of the weight reduction hole 3-12 is provided with a reinforcing structure.
[0048] At least one side of the first process hole 3-11 is provided with a first reinforcing rib 3-13; the setting position and number of the first reinforcing rib 3-13 are set according to the position and number of the first process hole 3-11 and the weight-reducing hole 3-12, and the first reinforcing rib 3-13 can enhance the structural strength of the C-pillar upper connecting plate 3 and improve the durability. For example, three first reinforcing ribs 3-13 are provided on the side of the third welding edge 3-7 away from the first main plate body, and each first reinforcing rib 3-13 can be provided one-to-one with the first process hole 3-11.
[0049] The first welding edge 3-1, the fourth welding edge 3-10 and the fifth welding edge 3-9 are all connected with the C-pillar inner plate 4, that is, the upper end and the right end of the first main plate body are welded and connected with the C-pillar inner plate 4, and the C-pillar upper connecting plate 3 and the C-pillar inner plate 4 enclose a closed window; the second welding edge 3-8 is connected with the D-pillar reinforcing plate 6, that is, the left end of the first main plate body is welded and connected with the D-pillar reinforcing plate 6; and the third welding edge 3-7 is connected with the C-pillar lower connecting plate 1 and the rear wheel cover outer plate 2, that is, the lower end of the first main plate body is welded and connected with the C-pillar lower connecting plate 1 and the rear wheel cover outer plate 2.
[0050] By using the above-mentioned C-pillar upper connecting plate 3, the first welding edge 3-1, the second welding edge 3-8, the third welding edge 3-7, the fourth welding edge 3-10 and the fifth welding edge 3-9 are welded and connected with the surrounding cooperating pieces, so that the C-pillar main body and the D-pillar main body can be seamlessly connected, and the C-pillar main body and the rear wheel cover outer plate 2 can be seamlessly connected.
[0051] Optionally, the first main plate body comprises a first side surface 3-2, a first step surface and a second side surface 3-6 connected in sequence, the first side surface 3-2 and the second side surface 3-6 both extend towards the same side direction, and the free ends of the two are connected together with the first welding edge 3-1 and the third welding edge 3-7 respectively; the first step surface overlaps the C-pillar lower connecting plate 1; the first main plate body comprises the first side surface 3-2, the first step surface and the second side surface 3-6 connected in sequence from the first welding edge 3-1 to the third welding edge 3-7, the first welding edge 3-1 and the third welding edge 3-7 are substantially level in height, the cross section of the first side surface 3-2, the first step surface and the second side surface 3-6 is approximately an inverted bowl-shaped structure, forming a cavity structure, the first step surface protrudes towards the side of the first welding edge 3-1 and the third welding edge 3-7, the support height of the first side surface 3-2 to the first step surface is less than the support height of the second side surface 3-6 to the first step surface, and each connection is a smooth transition.
[0052] The first reinforcing rib 3-13 is arranged on the first step surface. The first process hole 3-11 is arranged on the first step surface, and the plurality of lightening holes 3-12 are arranged in sequence along the length direction of the first step surface. In order to enhance the structural strength of the first step surface, the plurality of first reinforcing ribs 3-13 are arranged in sequence along the length direction of the first step surface. The first main plate body with the cavity structure can enhance the overall rigidity, and is overlapped with the C-pillar lower connecting plate 1 to increase the local connection rigidity.
[0053] Preferably, the first step surface comprises a first plane 3-3, a third side surface 3-4 and a second plane 3-5 connected in sequence, the free end of the first plane 3-3 is connected with the first side surface 3-2 in a smooth transition, the free end of the second plane 3-5 is connected with the second side surface 3-6 in a smooth transition, the first plane 3-3 has a gradually changing width, which gradually increases from the first welding edge 3-1 to the third side surface 3-4, and the third side surface 3-4 realizes the smooth transition of the first plane 3-3 and the second plane 3-5; the second plane 3-5 is overlapped with the C-pillar lower connecting plate 1 to increase the local connection rigidity; and the first reinforcing rib 3-13 is arranged on the second plane 3-5. The first process hole 3-11 is arranged on the second plane 3-5, and the plurality of lightening holes 3-12 are arranged in sequence along the length direction of the second plane 3-5. In order to enhance the structural strength of the second plane 3-5, the plurality of first reinforcing ribs 3-13 are arranged in sequence along the length direction of the second plane 3-5. The first step surface can increase the local connection rigidity by overlapping the second plane 3-5 with the C-pillar lower connecting plate 1.
[0054] Figure 7 For Figure 1 the schematic view of the C-pillar lower connecting plate. Figure 8 For Figure 7 the B-B sectional view of the C-pillar lower connecting plate. As Figure 7 and Figure 8 shown, the C-pillar lower connecting plate 1 comprises a second main plate body, a sixth welding edge 1-2, a seventh welding edge 1-6, an eighth welding edge 1-3 and a ninth welding edge 1-7.
[0055] Optionally, the C-pillar lower connecting plate 1 comprises: a second main plate body and a sixth welding edge 1-2, a seventh welding edge 1-6, an eighth welding edge 1-3 and a ninth welding edge 1-7 connected in sequence along the circumferential edge of the second main plate body; the second main plate body is substantially linear, and the sixth welding edge 1-2, the seventh welding edge 1-6, the eighth welding edge 1-3 and the ninth welding edge 1-7 form a closed structure on the edge of the second main plate body; wherein the sixth welding edge 1-2 is arranged on the vertical bottom end face of the second main plate body, the seventh welding edge 1-6 is arranged on the horizontal right end face of the second main plate body, a notch is formed on the seventh welding edge 1-6 to meet the stamping process requirement, the eighth welding edge 1-3 is arranged on the vertical top end face of the second main plate body, and the ninth welding edge 1-7 is arranged on the horizontal left end face of the first main plate body.
[0056] The second main plate body is provided with a second process hole 1-8, such as an oval hole, which includes but is not limited to a welding through hole. During the body welding process, sufficient welding tong access space can be ensured, and the second process hole 1-8 can be plugged with a corresponding metal plug.
[0057] The second process hole 1-8 is provided with a second reinforcing rib 1-9 and a third reinforcing rib 1-10 near the opposite two side edges thereof; the positions and number of the second reinforcing rib 1-9 and the third reinforcing rib 1-10 are set according to the position and size of the second process hole 1-8, and the second reinforcing rib 1-9 and the third reinforcing rib 1-10 can enhance the structural strength of the C-pillar lower connecting plate 1 and improve the durability.
[0058] The seventh welding edge 1-6, and the opposite lower parts of the sixth welding edge 1-2 and the eighth welding edge 1-3 are connected with the rear wheel cover outer plate 2, i.e., the opposite middle and lower parts of the second main plate body are welded and connected with the rear wheel cover outer plate 2; the ninth welding edge 1-7, and the opposite upper parts of the sixth welding edge 1-2 and the eighth welding edge 1-3 are connected with the C-pillar upper connecting plate 3, i.e., the opposite middle and upper parts of the second main plate body are welded and connected with the C-pillar upper connecting plate 3.
[0059] The above C-pillar lower connecting plate 1 is welded and connected with the C-pillar upper connecting plate 3 and the rear wheel cover outer plate 2 through the sixth welding edge 1-2, the seventh welding edge 1-6, the eighth welding edge 1-3 and the ninth welding edge 1-7, thereby enhancing the connection stiffness of the C-pillar upper connecting plate 3 and the rear wheel cover outer plate 2.
[0060] Optionally, the second main plate body comprises a fourth side surface 1-4, a third plane surface 1-1 and a fifth side surface 1-5 connected in sequence, the fourth side surface 1-4 and the fifth side surface 1-5 both extend to the same side, and the free ends of the fourth side surface 1-4 and the fifth side surface 1-5 are connected together with the sixth welding edge 1-2 and the eighth welding edge 1-3 respectively; the second main plate body comprises the fourth side surface 1-4, the third plane surface 1-1 and the fifth side surface 1-5 connected in sequence from the sixth welding edge 1-2 to the eighth welding edge 1-3, the sixth welding edge 1-2 and the eighth welding edge 1-3 are substantially level in height, the cross sections of the fourth side surface 1-4, the third plane surface 1-1 and the fifth side surface 1-5 are approximately bowl-shaped structures, forming a cavity structure, the third plane surface 1-1 protrudes to the side lower than the sixth welding edge 1-2 and the eighth welding edge 1-3, the fourth side surface 1-4 and the fifth side surface 1-5 support the third plane surface 1-1 at substantially level height, and each connection is a smooth transition.
[0061] The second reinforcing rib 1-9 and the third reinforcing rib 1-10 are arranged on the sixth welding edge 1-2 and the eighth welding edge 1-3 respectively. The second process hole 1-8 is arranged on the third plane surface 1-1, in order to enhance the structural strength of the second main plate body, at least one second reinforcing rib 1-9 is arranged on the sixth welding edge 1-2, if the second reinforcing rib 1-9 is multiple, then it is arranged in sequence and interval along the length direction of the sixth welding edge 1-2; at least one third reinforcing rib 1-10 is arranged on the eighth welding edge 1-3, if the third reinforcing rib 1-10 is multiple, then the third reinforcing rib 1-10 is arranged in sequence and interval along the length direction of the eighth welding edge 1-3. The above-mentioned second main plate body has a cavity structure, which can enhance the overall rigidity; and the connecting rigidity of the C-pillar upper connecting plate 3 and the rear wheel cover outer plate 2 is enhanced.
[0062] Figure 9 For Figure 1 the schematic view of the rear roll-up device mounting plate. Figure 10 For Figure 8 the C-C plane section view of the rear roll-up device mounting plate. As Figure 9 and Figure 10 shown, the rear roll-up device mounting plate 8 comprises a third main plate body, a tenth welding edge 8-1, an eleventh welding edge 8-5 and a twelfth welding edge 8-4.
[0063] Optionally, the rear roll-up device mounting plate 8 comprises a third main plate body and the tenth welding edge 8-1, the eleventh welding edge 8-5 and the twelfth welding edge 8-4 connected in sequence along the circumferential edge of the third main plate body; the third main plate body is substantially obtuse-angled, the tenth welding edge 8-1 and the twelfth welding edge 8-4 are arranged on the opposite sides of the third main plate body respectively, and the eleventh welding edge 8-5 is arranged on the bottom end surface of the third main plate body, for realizing the smooth transition of the tenth welding edge 8-1 and the twelfth welding edge 8-4.
[0064] The third main plate body is provided with a plurality of third process holes 8-7, such as two, which include but are not limited to welding through holes. During the welding process of the vehicle body, sufficient welding tong access space can be ensured, and the third process holes 8-7 can be plugged with corresponding metal plugs.
[0065] The third main plate body is provided with a rear roller installation hole 8-6, such as one, which can assist the installation of the rear roller.
[0066] The fourth reinforcing ribs 8-8 are respectively arranged near the opposite two side edges of the third process hole 8-7 and / or the rear roller installation hole 8-6. The arrangement position and number of the fourth reinforcing ribs 8-8 are set according to the position and size of the third process hole 8-7 and the rear roller installation hole 8-6. The fourth reinforcing ribs 8-8 can enhance the structural strength of the rear roller installation plate 8 and improve the durability.
[0067] The tenth welding edge 8-1 is connected with the C-pillar inner plate 4, that is, the left end of the third main plate body is welded and connected with the C-pillar inner plate 4. The eleventh welding edge 8-5 and the twelfth welding edge 8-4 are both connected with the D-pillar lower connecting plate 10, that is, the right end and the bottom end of the third main plate body are both welded and connected with the D-pillar lower connecting plate 10.
[0068] The above rear roller installation plate 8 provides a mounting position for the rear roller. The tenth welding edge 8-1, the eleventh welding edge 8-5 and the twelfth welding edge 8-4 are welded and connected with the C-pillar inner plate 4 and the D-pillar lower connecting plate 10, thereby enhancing the connection stiffness of the C-pillar inner plate 4 and the D-pillar lower connecting plate 10. Moreover, the rear roller installation plate 8 connects the C-pillar and the D-pillar, thereby playing a supporting and strengthening role.
[0069] Optionally, the third main plate body comprises a sixth side surface 8-2 and a fourth plane 8-3 connected in sequence, and the free ends of the two are connected together with the tenth welding edge 8-1 and the twelfth welding edge 8-4, respectively. The cross section of the tenth welding edge 8-1, the sixth side surface 8-2, the fourth plane 8-3 and the twelfth welding edge 8-4 is approximately a stepped structure. The horizontal position of the tenth welding edge 8-1 is lower than that of the twelfth welding edge 8-4, and each connection is a smooth transition, which has the advantage of high overall rigidity.
[0070] A plurality of third process holes 8-7 are arranged on the sixth side surface 8-2, such as two, which include but are not limited to welding through holes. During the welding process of the vehicle body, sufficient welding tong access space can be ensured, and the third process holes 8-7 can be plugged with corresponding metal plugs.
[0071] The rear roller installation hole 8-6 is arranged on the fourth plane 8-3 to assist the installation of the rear roller.
[0072] The fourth reinforcing ribs 8-8 are arranged on the tenth welding edge 8-1 and the twelfth welding edge 8-4. The arrangement positions and the number of the fourth reinforcing ribs 8-8 are set according to the arrangement positions and the number of the third process holes 8-7 and the rear roll-up device mounting holes 8-6, and the fourth reinforcing ribs 8-8 can enhance the structural strength of the rear roll-up device mounting plate 8 and improve the durability. For example, a plurality of fourth reinforcing ribs 8-8 are arranged on the tenth welding edge 8-1 in sequence and at intervals, and a plurality of fourth reinforcing ribs 8-8 are arranged on the twelfth welding edge 8-4 in sequence and at intervals.
[0073] The application also provides a vehicle, which comprises the rear body side reinforcement structure as described above. The vehicle can adopt any of the above-mentioned rear body side reinforcement structures, which will not be described here again.
[0074] As can be seen from the above description and practice, the rear body side reinforcement structure and the vehicle provided by the application have the following advantages compared with the prior art: the C-pillar lower connecting plate can connect the rear wheel cover outer plate and the C-pillar upper connecting plate by adopting the above-mentioned rear body side reinforcement structure. The C-pillar lower connecting plate and the rear roll-up device mounting plate have a lap joint edge close enough, the rear roll-up device mounting plate plays a supporting role, increases the force transmission path, solves the problem of insufficient Y-direction support of the CD-pillar connecting body, and greatly reduces the risk of cracking of the CD-pillar connecting body. By adopting the above-mentioned structure, there is no opening in the CD-pillar connecting area, and the overall structural strength and rigidity are high through the design of the cross section and the lap joint. The rear wheel cover outer plate, the C-pillar and the D-pillar no longer need additional reinforcing plates to transmit loads and vibrations, have strong versatility, good durability, significantly improve the NVH performance, and meet the requirements of structural durability and production and manufacturing.
[0075] It should be understood by those skilled in the art that the above description is only a specific embodiment of the application, and is not used to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit of the application shall be included in the protection scope of the application.
Claims
1. A vehicle body side rear reinforcement structure, characterized in that: include: rear wheel arch outer panel; a C-pillar, the C-pillar comprising a C-pillar body; A D-pillar, the D-pillar comprising a D-pillar body; A CD-pillar connecting body, the C-pillar, the D-pillar and the rear wheelhouse outer panel are all connected to the CD-pillar connecting body; the CD-pillar connecting body includes: a C-pillar upper connecting plate, a C-pillar lower connecting plate and a rear retractor mounting plate overlapped on the C-pillar lower connecting plate, the C-pillar upper connecting plate and the C-pillar lower connecting plate are connected and located on the outside of the CD-pillar connecting body, the C-pillar lower connecting plate is used to connect the C-pillar upper connecting plate to the rear wheelhouse outer panel; the rear retractor mounting plate is located on the inside of the CD-pillar connecting body and is used to connect the C-pillar body and the D-pillar body.
2. The vehicle body side rear reinforcement structure according to claim 1, characterized in that: The C-pillar body includes: a C-pillar inner plate and a C-pillar reinforcement plate. The C-pillar inner plate is seamlessly connected to the C-pillar upper connecting plate, the rear retractor mounting plate and the D-pillar body; the C-pillar reinforcement plate is arranged on the C-pillar inner plate.
3. The vehicle body side rear reinforcement structure according to claim 2, characterized in that: The D-pillar body includes: a D-pillar reinforcement plate, a rear top cross beam upper connecting plate, a rear top cross beam lower connecting plate and a D-pillar lower connecting plate; the rear top cross beam upper connecting plate and the D-pillar reinforcement plate are connected, and both are located on the outside of the D-pillar body, the rear top cross beam upper connecting plate is seamlessly connected to the C-pillar inner plate, and the D-pillar reinforcement plate is connected to the C-pillar upper connecting plate; the rear top cross beam lower connecting plate and the D-pillar lower connecting plate are connected, and both are located on the inside of the D-pillar body, the rear top cross beam lower connecting plate is seamlessly connected to the C-pillar inner plate; the D-pillar lower connecting plate is connected to the rear retractor mounting plate.
4. The vehicle body side rear reinforcement structure according to any one of claims 1 to 3, characterized in that: The C-pillar upper connecting plate includes: a first main plate body and a first welding edge, a second welding edge, a third welding edge, a fourth welding edge and a fifth welding edge connected in sequence along the circumferential edge of the first main plate body; a first process hole is provided on the first main plate body and the third welding edge, and a first reinforcing rib is provided near at least one side edge of the first process hole; the first welding edge, the fourth welding edge and the fifth welding edge are all connected to the C-pillar inner plate, the second welding edge is connected to the D-pillar reinforcement plate, and the third welding edge is connected to the C-pillar lower connecting plate and the rear wheelhouse outer plate.
5. The vehicle body side rear reinforcement structure according to claim 4, characterized in that: The first main board body includes a first side surface, a first step surface and a second side surface connected in sequence, the first side surface and the second side surface extend in the same side direction, and the free ends of the two are respectively connected to the first welding edge and the third welding edge; the first step surface overlaps the lower connecting plate of the C-pillar, and the first reinforcing rib is arranged on the first step surface.
6. The vehicle body side rear reinforcement structure according to any one of claims 1 to 3, characterized in that: The C-pillar lower connecting plate includes: a second main plate body and a sixth welding edge, a seventh welding edge, an eighth welding edge and a ninth welding edge connected in sequence along the circumferential edge of the second main plate body; a second process hole is provided on the second main plate body, and a second reinforcing rib and a third reinforcing rib are respectively provided near the edges on opposite sides of the second process hole; the seventh welding edge and the relative lower parts of the sixth welding edge and the eighth welding edge are all connected to the rear wheelhouse outer panel, and the ninth welding edge and the relative upper parts of the sixth welding edge and the eighth welding edge are all connected to the C-pillar upper connecting plate.
7. The vehicle body side rear reinforcement structure according to claim 6, characterized in that: The second main board body includes a fourth side surface, a third plane and a fifth side surface connected in sequence, the fourth side surface and the fifth side surface both extend toward the same side, and the free ends of the two are respectively connected to the sixth welding edge and the eighth welding edge; the second reinforcing rib and the third reinforcing rib are respectively arranged on the sixth welding edge and the eighth welding edge.
8. The vehicle body side rear reinforcement structure according to any one of claims 1 to 3, characterized in that: The rear retractor mounting plate includes: a third main plate body and a tenth welding edge, an eleventh welding edge, and a twelfth welding edge connected in sequence along the circumferential edge of the third main plate body; a third process hole and a rear retractor mounting hole are provided on the third main plate body, and fourth reinforcing ribs are respectively provided near the opposite side edges of the third process hole and / or the rear retractor mounting hole; the tenth welding edge is connected to the C-pillar inner panel, and the eleventh welding edge and the twelfth welding edge are both connected to the D-pillar lower connecting plate.
9. The vehicle body side rear reinforcement structure according to claim 8, characterized in that: The third main board body includes a sixth side surface and a fourth plane connected in sequence, and the free ends of the two are respectively connected to the tenth welding edge and the twelfth welding edge; the third process hole and the rear retractor mounting hole are respectively arranged on the sixth side surface and the fourth plane, and the tenth welding edge and the twelfth welding edge are both provided with the fourth reinforcing rib.
10. A vehicle, characterized in that: The vehicle comprises: the vehicle body side rear reinforcement structure according to any one of claims 1 to 9.