C column reinforcing structure and automobile
By combining the lower end of the automotive C-pillar reinforcement plate with the rear wheel bulging outer plate and the rear connecting plate of the side sill reinforcement member, a multi-cavity structure is formed, which solves the problem of insufficient stiffness at the lower end of the C-pillar connection and improves the torsional stiffness and bending stiffness, and optimize the overall stiffness and aesthetics of the body.
Patent Information
- Application Number
- CN202420347717.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-02-23
AI Technical Summary
The stiffness and strength at the lower end connection of the existing automotive C-pillar reinforcement structure are insufficient, resulting in poor torsional stiffness and bending stiffness when the automotive C-pillar is subjected to force.
The combination of C-column reinforcement plate, rear wheel bulging outer plate, side sill reinforcement rear connecting plate, rear floor side beam front section, etc. is adopted to form a multi-cavity structure through connection and welding to enhance the stiffness and strength of the lower end of C-column. The overall stiffness and aesthetics of the car body are optimized through the window overlapping flanges and weight reduction holes.
It significantly improves the stiffness and strength at the lower end of the car C-pillar, improves the torsional stiffness and bending stiffness, and optimizes the fatigue strength and aesthetics of the rear door frame and window area of the car body, and enhances the safety performance of side collisions.
Smart Images
Figure CN222329830U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile bodies, in particular to a C-pillar reinforcement structure and an automobile. Background Art
[0002] The C-pillar of a car is a pillar connecting the roof and the body of the car near the rear seats. It is an important structure that supports the rigidity and strength of the car body. In addition, the C-pillar of a car also has an important influence on the overall aesthetics and smoothness of the car body, especially the rear door frame and the triangular window area. The existing C-pillar reinforcement structure includes a C-pillar reinforcement plate. The connection structure strength at the lower end of the C-pillar reinforcement plate is insufficient, resulting in the defects of poor rigidity and strength at the lower end connection of the car C-pillar. Utility Model Content
[0003] One of the purposes of the utility model is to provide a C-pillar reinforcement structure to solve or partially solve the problem that the connection structure strength of the lower end of the C-pillar reinforcement plate in the prior art is insufficient, resulting in poor rigidity and strength at the lower end connection of the automobile C-pillar; the second purpose is to provide an automobile.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0005] A C-pillar reinforcement structure comprises a C-pillar reinforcement plate and a rear wheel bulge outer panel, the C-pillar reinforcement structure also comprises a rear wheel bulge outer panel connecting plate, a side sill reinforcement rear connecting plate and a rear floor side beam front section; the lower end of the C-pillar reinforcement plate is connected to the upper end of the side sill reinforcement rear connecting plate, the rear floor side beam front section, the rear wheel bulge outer panel and the rear wheel bulge outer panel connecting plate.
[0006] According to the above technical means, the lower end of the C-pillar reinforcement plate is connected with the upper end of the rear connecting plate of the side sill reinforcement, the front section of the rear floor side beam, the rear wheel bulge outer plate, and the rear wheel bulge outer plate connecting plate to form a reinforcement structure. The reinforcement structure has the advantages of high rigidity and strength, so that the C-pillar reinforcement structure can increase the rigidity and strength of the lower end connection of the automobile C-pillar. The force transmitted to the automobile C-pillar by the roof and the like can be transmitted to the lower body through the rear connecting plate of the side sill reinforcement and the front section of the rear floor side beam, thereby improving the torsional rigidity and bending rigidity of the automobile C-pillar.
[0007] Furthermore, the upper side of the lower end stop of the C-pillar reinforcement plate is connected to the upper end stop of the rear connecting plate of the side sill reinforcement, and the upper side of the lower end stop of the C-pillar reinforcement plate is connected to the outer side of the rear wheel bulge outer panel, and the inner side of the rear wheel bulge outer panel is connected to the front section of the rear floor side beam and the rear wheel bulge outer panel connecting plate; a first cavity is formed between the upper side of the lower end stop of the C-pillar reinforcement plate and the outer side of the rear wheel bulge outer panel.
[0008] According to the above technical means, at the upper side of the lower end stop of the C-pillar reinforcement plate, the upper side of the lower end stop of the C-pillar reinforcement plate, the upper end stop of the rear connecting plate of the side sill reinforcement, the rear wheel bulge outer panel, the front section of the rear floor side beam and the rear wheel bulge outer panel connecting plate are connected, and a first cavity is formed between the upper side of the lower end stop of the C-pillar reinforcement plate and the outer side of the rear wheel bulge outer panel. The above structure effectively improves the stiffness and strength of the lower connection of the automobile C-pillar.
[0009] Furthermore, the first cavity is an L-shaped cavity.
[0010] According to the above technical means, the rigidity and strength of the lower connection of the C-pillar of the automobile can be increased.
[0011] Furthermore, at the upper side of the lower end stop of the C-pillar reinforcement plate, the rear wheel bulge outer panel connecting plate and the front section of the rear floor side beam are connected; the rear wheel bulge outer panel, the rear wheel bulge outer panel connecting plate and the front section of the rear floor side beam together enclose a second cavity.
[0012] According to the above technical means, the connection structure of the rear wheel bulge outer panel, the rear wheel bulge outer panel connecting plate and the front section of the rear floor side beam, and the second cavity can increase the rigidity and strength of the lower connection of the automobile C-pillar.
[0013] Furthermore, the lower side of the lower end stop of the C-pillar reinforcement plate is connected to the outer side of the upper end stop of the rear connecting plate of the side sill reinforcement, and the inner side of the upper end stop of the rear connecting plate of the side sill reinforcement is connected to the rear wheel bulge outer panel, the front section of the rear floor side beam, and the rear wheel bulge outer panel connecting plate.
[0014] According to the above technical means, the lower end of the C-pillar reinforcement plate is connected to the upper end of the rear connecting plate of the side sill reinforcement, the front section of the rear floor side beam, the rear wheel bulge outer panel, and the rear wheel bulge outer panel connecting plate to form a reinforcement structure. The reinforcement structure has the advantages of high rigidity and strength, so that the C-pillar reinforcement structure can increase the rigidity and strength of the lower end connection of the C-pillar of the car.
[0015] Furthermore, the C-pillar reinforcement structure also includes a side panel rear lower inner panel connecting piece, and the upper end of the C-pillar reinforcement plate is connected to the upper end of the rear wheel bulge outer panel and the lower end of the side panel rear lower inner panel connecting piece.
[0016] According to the above technical means, after the upper end of the C-pillar reinforcement plate is connected to the upper end of the rear wheel bulge outer panel and the lower end of the side panel rear lower inner panel connecting piece, the stiffness and strength of the upper end connection of the automobile C-pillar can be increased, thereby improving the torsional stiffness and bending stiffness of the automobile C-pillar.
[0017] Furthermore, a window lap flange is provided on the upper rear side of the C-pillar reinforcement plate, a window is formed on the rear wheel bulge outer plate, and the window lap flange is connected to the rear wheel bulge outer plate at the periphery of the window.
[0018] According to the above technical means, the front side of the middle area of the C-pillar reinforcement plate and the rear wheel bulge outer panel are overlap-welded, and the C-pillar reinforcement plate is overlap-welded with the rear wheel bulge outer panel through the window overlap flange, thereby improving the rigidity and strength of the rear door frame area and the window area of the vehicle body, thereby improving the fatigue strength of the rear door frame area and the window area of the vehicle body and improving the cracking of the side outer panel.
[0019] Furthermore, the C-pillar reinforcement structure also includes a side enclosure rear lower inner panel reinforcement and a rear wheel bulge inner panel inner side reinforcement; the outer side of the rear wheel bulge outer panel is connected to the side enclosure rear lower inner panel reinforcement, the inner side of the rear wheel bulge outer panel is connected to the rear wheel bulge inner panel inner side reinforcement, the side enclosure rear lower inner panel reinforcement is located at the lower side of the window, and the rear wheel bulge inner panel inner side reinforcement is located at the lower side and rear side of the window.
[0020] According to the above technical means, the window lap flange is located at the front and lower sides of the window, the side rear lower inner plate reinforcement is located at the lower side of the window, and the rear wheel bulge inner plate inner side reinforcement is located at the lower and rear sides of the window. The C-pillar reinforcement plate, the side rear lower inner plate reinforcement, the rear wheel bulge inner plate inner side reinforcement, and the rear wheel bulge outer plate are overlapped and welded to form a reinforcement structure at the lower part of the window, which enhances the rigidity of the lower area of the window and is conducive to the force of the rear wheel bulge outer plate being transmitted to the lower vehicle body through the rear wheel bulge inner plate inner side reinforcement.
[0021] Furthermore, the C-pillar reinforcement plate also includes a weight-reducing hole, and the weight-reducing hole is located in the upper middle portion of the C-pillar reinforcement plate.
[0022] According to the above technical means, the weight-reducing holes effectively reduce the weight of the C-pillar reinforcement plate without reducing the strength and rigidity of the C-pillar reinforcement plate.
[0023] A car comprises a body, wherein the body is provided with the above-mentioned C-pillar reinforcement structure.
[0024] Beneficial effects of the utility model:
[0025] (1) The utility model uses a single C-pillar reinforcement plate, and overlaps and welds the upper end of the C-pillar reinforcement plate with the upper end of the rear wheel bulge outer plate and the lower end of the side panel rear lower inner plate connecting piece; overlaps and welds the front side of the middle part of the C-pillar reinforcement plate and the rear side of the middle part of the C-pillar reinforcement plate with the rear wheel bulge outer plate through a flange structure; overlaps and welds the lower end of the C-pillar reinforcement plate with the upper end of the rear connecting plate of the side panel sill reinforcement, the front section of the rear floor side beam, the rear wheel bulge outer plate, and the rear wheel bulge outer plate connecting plate. The C-pillar reinforcement plate is overlap-welded with the rear wheel bulge outer plate, the side panel rear lower inner plate connecting piece, the side panel sill reinforcement rear connecting plate, the front section of the rear floor side beam, and the rear wheel bulge outer plate connecting plate to form a three-section reinforcement structure. The three-section reinforcement structure can significantly increase the rigidity and strength of the C-pillar of the automobile, and improve the torsional rigidity and bending rigidity of the middle part of the C-pillar of the automobile.
[0026] (2) The upper rear part of the C-pillar reinforcement plate of the utility model has a triangular window arc-shaped structure, that is, a window lap flange, and the front side of the C-pillar reinforcement plate is bent downward along the rear door frame area, thereby optimizing the force transmission from the C-pillar and triangular window area of the automobile to the wheel hub outer panel and reducing the deformation of the rear door frame.
[0027] (3) A first cavity is formed between the upper side of the lower end stop of the C-pillar reinforcement plate and the outer side of the rear wheel bump outer panel; the rear wheel bump outer panel, the rear wheel bump outer panel connecting plate and the front section of the rear floor side beam together form a second cavity; an L-shaped cavity is formed between the middle area of the C-pillar reinforcement plate and the rear wheel bump outer panel; a trapezoidal cavity is formed after welding the overlapping flange of the upper end stop of the C-pillar reinforcement plate, the lower end stop of the side panel rear lower inner panel connecting piece, and the upper end extension of the wheel bump outer panel. The above cavity improves the overall stiffness and side collision safety performance of the C-pillar of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a structural schematic diagram of one side of the C-pillar reinforcement structure of the utility model;
[0029] Figure 2 It is a structural schematic diagram of the C-pillar reinforcement plate of the utility model;
[0030] Figure 3 It is a structural schematic diagram of the other side of the C-pillar reinforcement structure of the utility model;
[0031] Figure 4 It is a structural schematic diagram of the A-A cross-sectional view of the utility model;
[0032] Figure 5 It is a structural schematic diagram of a cross-sectional view of the connection between the middle portion of the C-pillar reinforcement plate and the outer plate of the rear wheel bulge of the utility model;
[0033] Figure 6It is a structural schematic diagram of the BB cross-section of the utility model;
[0034] Figure 7 This is a schematic diagram of the structure of the C-C cross-section of the utility model
[0035] Among them, 1-C-pillar reinforcement plate, 2-rear wheel bulge outer panel, 3-side panel rear lower inner panel connecting piece, 4-top cover rear crossbeam support plate, 5-rear wheel bulge outer panel connecting plate, 6-side panel door sill reinforcement rear connecting plate, 7-rear floor side beam front section, 8-side panel rear lower inner panel reinforcement, 9-rear wheel bulge inner panel inner reinforcement, 10-window, 11-door frame lap flange, 12-window lap flange, 13-wheel bulge support flange, 14-weight reduction hole, 15-glue extrusion groove, 16-electrophoresis hole, 17-positioning hole, 18-first expansion glue installation hole, 19-second expansion glue installation hole, 20-triangle window installation hole, 21-rear door lock installation hole. DETAILED DESCRIPTION
[0036] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.
[0037] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.
[0038] The present application embodiment proposes a C-pillar reinforcement structure, referring to Figure 1 , which shows a schematic diagram of the structure of the C-pillar reinforcement structure in the embodiment of the present application, and the C-pillar reinforcement structure can increase the rigidity and strength of the automobile C-pillar. Among them, the automobile C-pillar is the third pillar among the automobile side pillars that runs through the top cover and the lower body, and the automobile C-pillar plays an important role in the rigidity and strength of the vehicle body.
[0039] In the present application, refer to Figure 1As shown, the C-pillar reinforcement structure includes a C-pillar reinforcement plate 1, a rear wheel bulge outer panel 2, a side sill reinforcement rear connecting plate 6, a rear floor side beam front section 7, and a rear wheel bulge outer panel connecting plate 5; the lower end of the C-pillar reinforcement plate 1 is connected to the upper end of the side sill reinforcement rear connecting plate 6, the rear floor side beam front section 7, the rear wheel bulge outer panel 2, and the rear wheel bulge outer panel connecting plate 5.
[0040] The C-pillar reinforcement structure of the embodiment of the present application, the C-pillar reinforcement plate 1 is used to increase the rigidity and strength of the C-pillar of the automobile. The lower end of the C-pillar reinforcement plate 1 is connected with the upper end of the rear connecting plate 6 of the side sill reinforcement, the front section 7 of the rear floor side beam, the rear wheel bulge outer plate 2, and the rear wheel bulge outer plate connecting plate 5 to form a reinforcement structure. The reinforcement structure has the advantages of high rigidity and strength. Therefore, the C-pillar reinforcement structure can increase the rigidity and strength of the lower end connection of the automobile C-pillar. The force transmitted to the automobile C-pillar by the roof and the like can be transmitted to the lower body through the rear connecting plate 6 of the side sill reinforcement and the front section 7 of the rear floor side beam, thereby improving the torsional rigidity and bending rigidity of the automobile C-pillar.
[0041] In the embodiment of the present application, the upper side of the lower end stop of the C-pillar reinforcement plate 1 is connected to a portion of the upper end stop of the side sill reinforcement rear connecting plate 6, and the upper side of the lower end stop of the C-pillar reinforcement plate 1 is connected to the outer side of the rear wheel bulge outer panel 2, and the inner side of the rear wheel bulge outer panel 2 is connected to the front section of the rear floor side beam 7 and the rear wheel bulge outer panel connecting plate 5; a first cavity is formed between the upper side of the lower end stop of the C-pillar reinforcement plate 1 and the outer side of the rear wheel bulge outer panel 2.
[0042] Further reference is made to 1 and Figure 6 As shown, Figure 6 The cross-sectional view of the C-pillar reinforcement plate 1 overlapping with the rear wheel bump outer panel 2, the rear wheel bump outer panel connecting plate 5 and the front section 7 of the rear floor side beam is shown. At the lower end connection of the automobile C-pillar near the door sill, the front part of the upper side of the lower end stop of the C-pillar reinforcement plate 1 overlaps with the upper end stop part of the rear connecting plate 6 of the side sill reinforcement, and the inner side of the upper side of the lower end stop of the C-pillar reinforcement plate 1 overlaps with the outer side of the rear wheel bump outer panel 2, and the inner side of the rear wheel bump outer panel 2 overlaps with the front section 7 of the rear floor side beam and the rear wheel bump outer panel connecting plate 5. At the lower end connection of the automobile C-pillar near the door sill, a first cavity is formed between the upper side of the lower end stop of the C-pillar reinforcement plate 1 and the outer side of the rear wheel bump outer panel 2. The above structure of the embodiment of the present application effectively improves the rigidity and strength of the lower connection of the automobile C-pillar.
[0043] In the embodiment of the present application, the first cavity is an L-shaped cavity, and the L-shaped cavity can increase the rigidity and strength of the lower connection of the C-pillar of the automobile.
[0044] In the embodiment of the present application, at the upper side of the lower end stop of the C-pillar reinforcement plate 1, the inner side of the rear wheel bulge outer panel 2 is overlapped and connected with the front section 7 of the rear floor side beam and the rear wheel bulge outer panel connecting plate 5, and the rear wheel bulge outer panel connecting plate 5 is connected with the front section 7 of the rear floor side beam; the rear wheel bulge outer panel 2, the rear wheel bulge outer panel connecting plate 5 and the front section 7 of the rear floor side beam together enclose a second cavity.
[0045] Among them, the rear wheel bulge outer panel connecting plate 5 is overlapped with the rear wheel bulge outer panel 2 to extend the rear wheel bulge outer panel 2, the rear wheel bulge outer panel connecting plate 5 is overlapped with the front section 7 of the rear floor side beam, the front side of the front section 7 of the rear floor side beam is overlapped with the upper end stop of the side sill reinforcement rear connecting plate 6, and the rear wheel bulge outer panel connecting plate 5, the rear wheel bulge outer panel 2, the front section 7 of the rear floor side beam, and the side sill reinforcement rear connecting plate 6 are overlapped and welded to form a box-shaped second cavity, which is located inside the first cavity. The connection structure of the rear wheel bulge outer panel 2, the rear wheel bulge outer panel connecting plate 5 and the front section 7 of the rear floor side beam, and the second cavity can increase the rigidity and strength of the lower connection of the C-pillar of the automobile.
[0046] In the embodiment of the present application, the lower side of the lower end stop of the C-pillar reinforcement plate 1 is connected to the outer side of the upper end stop of the side sill reinforcement rear connecting plate 6, and the inner side of the upper end stop of the side sill reinforcement rear connecting plate 6 is connected to the rear wheel bulge outer panel 2, the front section of the rear floor side beam 7 and the rear wheel bulge outer panel connecting plate 5.
[0047] Specifically, refer to Figure 1 and Figure 7 As shown, Figure 7 The cross-sectional view shows the overlap of the C-pillar reinforcement plate 1, the side sill reinforcement rear connecting plate 6, the rear wheel bulge outer plate 2, the rear wheel bulge outer plate connecting plate 5 and the front section 7 of the rear floor side beam. The stopper end of the side sill reinforcement rear connecting plate 6 has a sunken flange structure, which is located on the inner side of the lower side of the lower stopper of the C-pillar reinforcement plate 1 and fits with the lower side of the lower stopper of the C-pillar reinforcement plate 1, which is conducive to keeping the surface of the side sill reinforcement rear connecting plate 6 and the surface of the C-pillar reinforcement plate 1 flush, ensuring the consistency of the surface of the side sill reinforcement rear connecting plate 6 and the C-pillar reinforcement plate 1. At the flange position close to the door frame, the front section 7 of the rear floor side beam has a sunken groove, and the rear wheel bulge outer panel 2 and the side sill reinforcement rear connecting plate 6 have sunken flanges facing inwardly of the vehicle body, which overlap with the flange at the lower end of the C-pillar reinforcement plate 1 to form an avoidance structure, thereby ensuring the consistency of the surface of the side sill reinforcement rear connecting plate 6 and the C-pillar reinforcement plate 1.
[0048] In the present application, refer to Figure 2 and Figure 5As shown, the front side of the middle area of the C-pillar reinforcement plate 1 and the rear side of the middle area of the C-pillar reinforcement plate 1 are overlap-welded with the rear wheel bulge outer panel 2 through a flange structure. After the middle area of the C-pillar reinforcement plate 1 is connected to the rear wheel bulge outer panel 2, an L-shaped cavity is formed between the middle area of the C-pillar reinforcement plate 1 and the rear wheel bulge outer panel 2, and the L-shaped cavity can effectively improve the rigidity of the middle part of the C-pillar of the automobile and the side collision safety performance.
[0049] In the embodiment of the present application, the C-pillar reinforcement structure also includes a side panel rear lower inner panel connecting piece 3, and the upper end of the C-pillar reinforcement plate 1 is connected to the upper end of the rear wheel bulge outer panel 2 and the lower end of the side panel rear lower inner panel connecting piece 3.
[0050] After the upper end of the C-pillar reinforcement plate 1 is connected to the upper end of the rear wheel bulge outer panel 2 and the lower end of the side panel rear lower inner panel connecting piece 3, the rigidity and strength of the upper end connection of the automobile C-pillar can be increased, thereby improving the torsional rigidity and bending rigidity of the automobile C-pillar.
[0051] Specifically, the upper end of the C-pillar reinforcement plate 1 is connected to the upper end of the rear wheel bulge outer panel 2 and the lower end of the side panel rear lower inner panel connecting piece 3 by lap welding.
[0052] In the embodiment of the present application, the upper end of the C-pillar reinforcement plate 1 is overlap-welded with the upper end of the rear wheel bulge outer panel 2 and the lower end of the side rear lower inner panel connector 3; the front side of the middle part of the C-pillar reinforcement plate 1 and the rear side of the middle part of the C-pillar reinforcement plate 1 are overlap-welded with the rear wheel bulge outer panel 2 through a flange structure; the lower end of the C-pillar reinforcement plate 1 is overlap-welded with the upper end of the side sill reinforcement rear connecting plate 6, the front section of the rear floor side beam 7, the rear wheel bulge outer panel 2, and the rear wheel bulge outer panel connecting plate 5. The C-pillar reinforcement plate 1 is overlap-welded with the rear wheel bulge outer panel 2, the side rear lower inner panel connector 3, the side sill reinforcement rear connecting plate 6, the front section of the rear floor side beam 7, and the rear wheel bulge outer panel connecting plate 5 to form a three-stage reinforcement structure. The three-stage reinforcement structure can significantly increase the rigidity and strength of the C-pillar of the automobile.
[0053] In the embodiment of the present application, the upper end stop of the C-pillar reinforcement plate 1 is welded to the lower end stop of the side panel rear lower inner panel connecting piece 3 .
[0054] Reference Figure 1 and Figure 4 As shown, Figure 4The cross-sectional view shows that the C-pillar reinforcement plate 1 is overlapped and welded with the side rear lower inner panel connector 3 and then overlapped with the rear wheel bulge outer panel 2. The upper end stop of the C-pillar reinforcement plate 1 has an overlap flange that sinks toward the inner side of the vehicle body, and the outer side of the upper end stop of the C-pillar reinforcement plate 1 fits with the inner side of the lower end stop of the side rear lower inner panel connector 3 at the middle section of the C-pillar near the window 10 of the automobile, and the inner side of the upper end stop of the C-pillar reinforcement plate 1 fits with the groove surface of the upper extension of the rear wheel bulge outer panel 2 at this location. At the middle section of the C-pillar of the automobile near the window window 10, the overlapping flange of the upper end stop of the C-pillar reinforcement plate 1, the lower end stop of the side rear lower inner panel connecting piece 3, and the groove surface of the upper end extension of the rear wheel bulge outer panel 2 are all U-shaped structures. After welding, the overlapping flange of the upper end stop of the C-pillar reinforcement plate 1, the lower end stop of the side rear lower inner panel connecting piece 3, and the upper end extension of the rear wheel bulge outer panel 2 form a trapezoidal cavity. The above structure and the trapezoidal cavity can effectively improve the structural strength of the upper part of the C-pillar near the window window 10. At the same time, the overlapping flange of the upper end stop of the C-pillar reinforcement plate 1 is a sunken step structure, which not only improves the connection strength and rigidity of the upper end stop of the C-pillar reinforcement plate 1, but also enables the upper end stop of the C-pillar reinforcement plate 1 to overlap the middle layer of the side rear lower inner panel connecting piece 3 and the rear wheel bulge outer panel 2. The C-pillar reinforcement plate 1 and the lower end stop part of the side rear lower inner panel connecting piece 3 remain flush, thereby improving the overall consistency and contributing to the aesthetics of the rear door frame and window area and the smoothness of the lines.
[0055] In the present application, refer to Figure 1 and Figure 3 As shown, the C-pillar reinforcement structure also includes a roof rear cross beam support plate 4, which is connected to the side rear lower inner plate connecting member 3, and the roof rear cross beam support plate 4 is connected to the upper end of the rear wheel bulge outer plate 2. The roof rear cross beam support plate 4 is connected to the side rear lower inner plate connecting member 3 and the rear wheel bulge outer plate 2, which can increase the rigidity and strength of the connection on the automobile C-pillar.
[0056] In the embodiment of the present application, a window lap flange 12 is provided on the upper rear side of the C-pillar reinforcement plate 1, a window 10 is formed on the rear wheel bulge outer panel 2, and the window lap flange 12 is connected to the rear wheel bulge outer panel 2 at the periphery of the window 10.
[0057] In the embodiment of the present application, the front side of the middle area of the C-pillar reinforcement plate 1 is overlapped and welded with the rear wheel bulge outer panel 2, and the C-pillar reinforcement plate 1 is overlapped and welded with the rear wheel bulge outer panel 2 through the window overlap flange 12, thereby improving the rigidity and strength of the rear door frame area and the window area of the vehicle body, thereby improving the fatigue strength of the rear door frame area and the window area of the vehicle body, and improving the cracking of the side outer panel. Among them, the side outer panel is arranged on the outside of the C-pillar reinforcement plate 1 and the rear wheel bulge outer panel 2, and is connected to the C-pillar reinforcement plate 1 and the rear wheel bulge outer panel 2.
[0058] Further, refer to Figure 1 and Figure 2 As shown, a window lap flange 12 is provided on the upper rear side of the C-pillar reinforcement plate 1, and the window lap flange 12 has a circular arc structure at the lower left corner of the triangular window. The C-pillar reinforcement plate 1 is overlap-welded with the triangular window area of the rear wheel bulge outer panel 2 through the window lap flange 12. The overlap welding of the C-pillar reinforcement plate 1 with the triangular window area of the rear wheel bulge outer panel 2 through the window lap flange 12 is beneficial to increase the rigidity of the automobile C-pillar and helps to transmit force to the rear wheel bulge outer panel 2.
[0059] In the embodiment of the present application, the C-pillar reinforcement structure also includes a side enclosure rear lower inner panel reinforcement 8 and a rear wheel bulge inner panel inner side reinforcement 9; the outer side of the rear wheel bulge outer panel 2 is connected to the side enclosure rear lower inner panel reinforcement 8, and the inner side of the rear wheel bulge outer panel 2 is connected to the rear wheel bulge inner panel inner side reinforcement 9; the side enclosure rear lower inner panel reinforcement 8 is located at the lower side of the window 10, and the rear wheel bulge inner panel inner side reinforcement 9 is located at the lower side and rear side of the window 10.
[0060] In the present application, refer to Figure 1 and Figure 3 As shown, the C-pillar reinforcement plate 1 is overlap-welded with the rear wheel bulge outer panel 2 near the window 10 through the window overlap flange 12, the outer side of the rear wheel bulge outer panel 2 is overlap-welded with the side rear lower inner panel reinforcement 8, and the inner side of the rear wheel bulge outer panel 2 is overlap-welded with the rear wheel bulge inner panel inner reinforcement 9. The window overlap flange 12 is located at the front and lower side of the window 10, the side rear lower inner panel reinforcement 8 is located at the lower side of the window 10, and the rear wheel bulge inner panel inner reinforcement 9 is located at the lower and rear side of the window 10. The C-pillar reinforcement plate 1, the side rear lower inner panel reinforcement 8, the rear wheel bulge inner panel inner reinforcement 9, and the rear wheel bulge outer panel 2 are overlap-welded to form a reinforcement structure at the lower part of the window 10, which enhances the rigidity of the lower area of the window 10 and is conducive to the force of the rear wheel bulge outer panel 2 being transmitted to the lower vehicle body through the rear wheel bulge inner panel inner reinforcement 9.
[0061] It is understandable that the embodiment of the present application does not specifically limit the shape of the window 10, as long as it meets the requirements of use and shape. Figure 1 As shown, the window 10 is in a triangular structure. For another example, the window 10 is in a quadrilateral structure.
[0062] In the embodiment of the present application, the C-pillar reinforcement plate 1 further includes a weight-reducing hole 14, and the weight-reducing hole 14 is located in the middle and upper part of the C-pillar reinforcement plate 1. The arrangement of the weight-reducing hole 14 effectively reduces the weight of the C-pillar reinforcement plate 1.
[0063] In the embodiment of the present application, the connections among the C-pillar reinforcement plate 1, the rear wheel bulge outer plate 2, the side panel rear lower inner plate connecting member 3, the roof rear cross beam support plate 4, the rear wheel bulge outer plate connecting plate 5, the side panel door sill reinforcement rear connecting plate 6, the rear floor side beam front section 7, the side panel rear lower inner plate reinforcement 8, and the rear wheel bulge inner plate inner reinforcement 9 can all be lap welded. Lap welding refers to welding using a lap joint, that is, welding in which two separate workpiece joints are overlapped together. Lap welding is widely used in the connection of components on the vehicle body.
[0064] In the embodiments of the present application, the front side and the rear side both refer to the front-to-back direction of the car, and the upper and lower sides also refer to the upper and lower directions of the car. The inner side refers to the inner side of the car, and the outer side refers to the outer side of the car. For example, in the front-to-back direction of the car, the front side of the middle area of the C-pillar reinforcement plate 1 is located in front of the rear side of the middle area of the C-pillar reinforcement plate 1. For example, in the front-to-back direction of the car and in the upper and lower directions of the car, the window lap flange 12 is located at the front and lower side of the window 10, the side rear lower inner panel reinforcement 8 is located at the lower side of the window 10, and the rear wheel bulge inner panel inner reinforcement 9 is located at the lower side and rear side of the window 10. For example, the inner side of the rear wheel bulge outer panel 2 faces the interior of the car, and the outer side of the rear wheel bulge outer panel 2 faces the outside of the car.
[0065] The C-pillar reinforcement plate 1 in the embodiment of the present application refers to Figure 2 , which shows a schematic structural diagram of a C-pillar reinforcement plate, which includes a door frame lap flange 11, a window lap flange 12, and a wheel bulge support flange 13; the C-pillar reinforcement plate also includes a plurality of holes, such as a weight reduction hole 14, a glue extrusion groove 15, an electrophoresis hole 16, a positioning hole 17, a first expansion glue installation hole 18, a second expansion glue installation hole 19, a triangular window installation hole 20, and a rear door lock installation hole 21.
[0066] Furthermore, the front side of the C-pillar reinforcement plate 1 is provided with a door frame lap flange 11, and the rear side of the C-pillar reinforcement plate 1 is provided with a window lap flange 12 and a wheel bulge support flange 13, and the window lap flange 12 is located on the upper side of the wheel bulge support flange 13. The front side of the C-pillar reinforcement plate 1 is welded to the rear wheel bulge outer plate 2 through the door frame lap flange 11. The rear side of the C-pillar reinforcement plate 1 is welded to the rear wheel bulge outer plate 2 through the window lap flange 12 and the wheel bulge support flange 13. An L-shaped cavity is formed between the C-pillar reinforcement plate 1 and the rear wheel bulge outer plate 2, which can effectively improve the rigidity and side collision safety performance of the middle part of the C-pillar of the automobile. Among them, after the C-pillar reinforcement plate 1 is overlap-welded with the rear wheel bulge outer plate 2 through the door frame lap flange 11 and the window lap flange 12, the rigidity and strength of the rear door frame area and the window area of the vehicle body are improved, thereby improving the fatigue strength of the rear door frame area and the window area of the vehicle body, and improving the cracking of the side outer plate. After the C-pillar reinforcement plate 1 is overlap-welded with the rear wheel bump outer plate 2 through the wheel bump support flange 13, the force in the direction of the body side and the top of the body is effectively transmitted to the wheel bump and the lower body, thereby improving the torsional rigidity and bending rigidity of the automobile C-pillar.
[0067] Optionally, in the embodiment of the present application, the wheel bulge support flange 13 of the C-pillar reinforcement plate 1 has a plurality of concave and convex platforms formed by stamping, and a plurality of reinforcing ribs are provided on the rear wheel bulge outer panel 2, and the reinforcing ribs can increase the rigidity and strength of the rear wheel bulge outer panel 2. The concave and convex platforms on the C-pillar reinforcement plate 1 are staggered and overlapped with the reinforcing ribs on the rear wheel bulge outer panel 2, and the concave and convex platforms on the C-pillar reinforcement plate 1 can form an avoidance space, which is conducive to the assembly of the C-pillar reinforcement plate 1 with the rear wheel bulge outer panel 2 through the wheel bulge support flange 13, and improves the tightness of the overlap and fit between the wheel bulge support flange 13 and the rear wheel bulge outer panel 2.
[0068] Further references Figure 2 As shown, a weight-reducing hole 14 is provided in the middle and upper part of the C-pillar reinforcement plate 1. The weight-reducing hole 14 effectively reduces the weight of the C-pillar reinforcement plate 1 without reducing the strength and rigidity of the C-pillar reinforcement plate 1. A plurality of electrophoresis holes 16 are provided in the C-pillar reinforcement plate 1 along the longitudinal direction of the rear door frame. Figure 2In the C-pillar reinforcement plate 1, the C-pillar reinforcement plate 1 has four electrophoretic holes 16. A positioning hole 17 is provided at the upper end of the C-pillar reinforcement plate 1, and another positioning hole 17 is provided at the lower end of the C-pillar reinforcement plate 1. The positioning hole 17 is used for positioning. The C-pillar reinforcement plate 1 can be positioned through the positioning hole 17 so that the C-pillar reinforcement plate 1 can be processed, manufactured, assembled, etc. The C-pillar reinforcement plate 1 is provided with a first expansion glue installation hole 18 and a triangular window installation through hole 20 at a position close to the window lap flange 12; expansion glue can be filled between the C-pillar reinforcement plate 1 and the cavity of the rear wheel bulge outer panel 2, and between the C-pillar reinforcement plate 1 and the entire side outer panel through the first expansion glue installation hole 18; the triangular window installation through hole 20 is used to ensure that employees can operate and install smoothly during the final assembly process. The C-pillar reinforcement plate 1 is provided with a rear door lock installation hole 21 and a glue extrusion groove 15 at the middle and lower rear door lock position. A second expansion glue installation hole 19 is opened below the rear door lock position. The second expansion glue installation hole 19 of the C-pillar reinforcement plate 1 is used to fill the cavity between the C-pillar reinforcement plate 1 and the rear wheel bulge outer panel 2, and between the C-pillar reinforcement plate 1 and the entire side outer panel with expansion glue. The expansion glue filled through the second expansion glue installation hole 19 and the expansion glue filled through the first expansion glue installation hole 18 form an upper and lower sound insulation structure, which isolates the through cavity formed by the overlap of the upper and lower ends of the C-pillar reinforcement plate 1 with other sheet metals, thereby preventing the propagation of noise.
[0069] The C-pillar reinforcement structure of this embodiment is overlap-welded with the upper end of the C-pillar reinforcement plate 1 and the upper end of the rear wheel bulge outer panel 2 and the lower end of the side rear lower inner panel connecting piece 3 through a single C-pillar reinforcement plate 1; the front side of the middle part of the C-pillar reinforcement plate 1 and the rear side of the middle part of the C-pillar reinforcement plate 1 are overlap-welded with the rear wheel bulge outer panel 2 through a flanging structure; the lower end of the C-pillar reinforcement plate 1 is overlap-welded with the upper end of the rear connecting plate 6 of the side sill reinforcement, the front section of the rear floor side beam 7, the rear wheel bulge outer panel 2, and the rear wheel bulge outer panel connecting plate 5. The C-pillar reinforcement plate 1 is overlap-welded with the rear wheel bulge outer panel 2, the side rear lower inner panel connecting piece 3, the side sill reinforcement rear connecting plate 6, the front section of the rear floor side beam 7, and the rear wheel bulge outer panel connecting plate 5 to form a three-stage reinforcement structure. The three-stage reinforcement structure can significantly increase the rigidity and strength of the automobile C-pillar, and improve the torsional rigidity and bending rigidity of the middle part of the automobile C-pillar. The upper rear part of the C-pillar reinforcement plate 1 has a triangular window arc-shaped structure, namely, a window lap flange 12. The front side of the C-pillar reinforcement plate 1 is bent downward along the rear door frame area, which optimizes the force transmission from the C-pillar and triangular window area of the car to the rear wheel bulge outer panel 2, and reduces the deformation of the rear door frame. Moreover, the lap structure of the C-pillar reinforcement structure is reasonable. The upper side of the lower end stop of the C-pillar reinforcement plate 1 and the outer side of the rear wheel bulge outer panel 2 form a first cavity; the rear wheel bulge outer panel 2, the rear wheel bulge outer panel connecting plate 5 and the front section 7 of the rear floor side beam are surrounded to form a second cavity; an L-shaped cavity is formed between the middle area of the C-pillar reinforcement plate 1 and the rear wheel bulge outer panel 2; the lap flange of the upper end stop of the C-pillar reinforcement plate 1, the lower end stop of the side rear lower inner panel connecting piece 3, and the upper end extension of the rear wheel bulge outer panel 2 are welded to form a trapezoidal cavity. The above cavity improves the overall rigidity and side collision safety performance of the C-pillar of the car.
[0070] This embodiment also provides a car, including a car body, on which a C-pillar reinforcement structure is provided. The C-pillar reinforcement structure can improve the torsional rigidity and bending rigidity of the car's C-pillar, as well as the side collision safety performance, thereby making the car safer.
[0071] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.
Claims
1. A C-pillar reinforcement structure, comprising a C-pillar reinforcement plate (1) and a rear wheel bulge outer plate (2), characterized in that: The C-pillar reinforcement structure also includes a rear wheel bulge outer panel connecting plate (5), a side sill reinforcement rear connecting plate (6) and a rear floor side beam front section (7); the lower end of the C-pillar reinforcement plate (1) is connected to the upper end of the side sill reinforcement rear connecting plate (6), the rear floor side beam front section (7), the rear wheel bulge outer panel (2) and the rear wheel bulge outer panel connecting plate (5).
2. The C-pillar reinforcement structure according to claim 1, characterized in that: The upper side of the lower end stop of the C-pillar reinforcement plate (1) is connected to the upper end stop of the rear connecting plate (6) of the side sill reinforcement, and the upper side of the lower end stop of the C-pillar reinforcement plate (1) is connected to the outer side of the rear wheel bulge outer plate (2), and the inner side of the rear wheel bulge outer plate (2) is connected to the front section of the rear floor side beam (7) and the rear wheel bulge outer plate connecting plate (5); a first cavity is formed between the upper side of the lower end stop of the C-pillar reinforcement plate (1) and the outer side of the rear wheel bulge outer plate (2).
3. The C-pillar reinforcement structure according to claim 2, characterized in that: The first cavity is an L-shaped cavity.
4. The C-pillar reinforcement structure according to claim 2, characterized in that: At the upper side of the lower end stop of the C-pillar reinforcement plate (1), the rear wheel bulge outer panel connecting plate (5) and the front section of the rear floor side beam (7) are connected; the rear wheel bulge outer panel (2), the rear wheel bulge outer panel connecting plate (5) and the front section of the rear floor side beam (7) together enclose a second cavity.
5. The C-pillar reinforcement structure according to claim 1, characterized in that: The lower side of the lower end stop of the C-pillar reinforcement plate (1) is connected to the outer side of the upper end stop of the side sill reinforcement rear connecting plate (6), and the inner side of the upper end stop of the side sill reinforcement rear connecting plate (6) is connected to the rear wheel bulge outer plate (2), the front section of the rear floor side beam (7), and the rear wheel bulge outer plate connecting plate (5).
6. The C-pillar reinforcement structure according to claim 1, characterized in that: The C-pillar reinforcement structure also includes a side enclosure rear lower inner plate connecting piece (3), and the upper end of the C-pillar reinforcement plate (1) is connected to the upper end of the rear wheel bulge outer plate (2) and the lower end of the side enclosure rear lower inner plate connecting piece (3).
7. The C-pillar reinforcement structure according to claim 1, characterized in that: A window lap flange (12) is provided on the upper rear side of the C-pillar reinforcement plate (1), a window (10) is formed on the rear wheel bulge outer plate (2), and the window lap flange (12) is connected to the rear wheel bulge outer plate (2) at the periphery of the window (10).
8. The C-pillar reinforcement structure according to claim 7, characterized in that: The C-pillar reinforcement structure also includes a side enclosure rear lower inner panel reinforcement (8) and a rear wheel bulge inner panel inner side reinforcement (9); the outer side of the rear wheel bulge outer panel (2) is connected to the side enclosure rear lower inner panel reinforcement (8), the inner side of the rear wheel bulge outer panel (2) is connected to the rear wheel bulge inner panel inner side reinforcement (9), the side enclosure rear lower inner panel reinforcement (8) is located on the lower side of the window (10), and the rear wheel bulge inner panel inner side reinforcement (9) is located on the lower side and rear side of the window (10).
9. The C-pillar reinforcement structure according to claim 1, characterized in that: The C-pillar reinforcement plate (1) further comprises a weight-reducing hole (14), wherein the weight-reducing hole (14) is located in the upper middle portion of the C-pillar reinforcement plate (1).
10. An automobile, comprising a vehicle body, characterized in that: The vehicle body is provided with a C-pillar reinforcement structure as described in any one of claims 1-9.