C-pillar structure, side wall panel assembly, and vehicle having the same

Abstract

The application discloses a C-column structure, a side wall plate assembly and a vehicle with the same, the C-column structure comprising: a C-column structure, a front side profile of the C-column structure is a front profile line, the front profile line extends in a curve in the up-down direction, the front profile line comprises a plurality of front profile line segments connected in sequence from top to bottom, one of the two adjacent front profile line segments protrudes forward and the other one is recessed backward, the height-width ratio of the two adjacent front profile line segments is different, the sag of the front profile line segment is d, the chord length of the front profile line segment is L, the height-width ratio is the ratio of d and L, the C-column structure comprises: a C-column outer plate; a C-column inner plate, the C-column inner plate is arranged on the inner side of the C-column outer plate, the front end part of the C-column inner plate is formed with a folded edge cover, the folded edge cover covers the front edge of the C-column outer plate and covers the outer side surface of the C-column outer plate. According to the C-column structure, the vibration energy can be effectively attenuated, the structural strength can be improved, and the impact resistance and deformation resistance of the C-column structure can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a C-pillar structure, a side wall panel assembly and a vehicle with the same. BACKGROUND

[0002] For the vehicle body structure, the side wall panel assembly where the C-pillar structure is located is an important part. However, the existing side wall panel assembly still has the problem of insufficient strength, which has an important influence on the safety performance of the vehicle. SUMMARY

[0003] The present application aims to at least solve one of the problems in the prior art. To this end, the present application proposes a C-pillar structure which can attenuate vibration energy and has high structural strength.

[0004] The present application also proposes a side wall panel assembly with the above-mentioned C-pillar structure.

[0005] The present application also proposes a vehicle with the above-mentioned side wall panel assembly.

[0006] According to the C-pillar structure of the first aspect of the present application, the C-pillar structure has a front side profile which is a front profile line extending in a curved manner in the up-down direction, the front profile line comprises a plurality of front profile line segments connected in sequence from top to bottom, one of the two adjacent front profile line segments protrudes forward and the other one is recessed backward, the height-width ratio of the two adjacent front profile line segments is different, the sag of the front profile line segment is d, the chord length of the front profile line segment is L, and the height-width ratio is the ratio of d to L, the C-pillar structure comprises a C-pillar outer panel and a C-pillar inner panel arranged inside the C-pillar outer panel, the front end of the C-pillar inner panel is formed with a folded edge cover which covers the front edge of the C-pillar outer panel and covers the outer side surface of the C-pillar outer panel.

[0007] According to the C-pillar structure of the present application, by making the front profile line thereof comprise a plurality of front profile line segments connected in sequence from top to bottom, and one of the two adjacent front profile line segments protrudes forward and the other one is recessed backward, the C-pillar structure is formed as a high-strength structure composed of a plurality of arch-shaped structures, in addition, since the height-width ratio of each front profile line segment is different, the C-pillar structure satisfies the frequency avoidance principle, i.e. avoiding the vibration energy of the vehicle from exciting the C-pillar structure to resonate, which helps to strengthen the vibration energy attenuation ability of the C-pillar structure on the road surface and the powertrain excitation path, effectively attenuating the vibration energy at this position. By covering the front edge of the C-pillar outer panel with the folded edge cover of the C-pillar inner panel and covering the outer side surface of the C-pillar outer panel, the connection strength of the C-pillar inner panel and the C-pillar outer panel can be further improved, thereby improving the structural strength of the C-pillar structure and the impact resistance and deformation resistance of the C-pillar structure, which is beneficial to improving the safety of the vehicle.

[0008] According to some embodiments of the present application, the height-width ratio of two adjacent segments of the front profile line is different, and the absolute value of the difference of the height-width ratio of two adjacent segments of the front profile line is not less than 0.1.

[0009] In some embodiments, the plurality of segments of the front profile line comprises a first front profile line segment, a second front profile line segment and a third front profile line segment connected in sequence from top to bottom, the second front profile line segment is convex forward, and the first front profile line segment and the third front profile line segment are both concave backward, wherein the height-width ratio of the second front profile line segment is the smallest, and the folding hem is formed on the second front profile line segment.

[0010] According to the side wall panel assembly of the second aspect of the present application, the C-pillar structure is the C-pillar structure according to the first aspect of the present application, the front end of the D-pillar structure is connected to the upper end of the C-pillar structure, the rear wheel cover is connected to the C-pillar structure, and the reinforcing connecting structure is arranged in the space surrounded by the C-pillar structure, the D-pillar structure and the rear wheel cover, and the reinforcing connecting structure is connected to the D-pillar structure, the rear wheel cover and the C-pillar structure, so that the D-pillar structure, the reinforcing connecting structure, the rear wheel cover and the C-pillar structure form a closed structure.

[0011] According to the side wall panel assembly of the present application, the reinforcing connecting structure is arranged in the space surrounded by the C-pillar structure, the D-pillar structure and the rear wheel cover, and the reinforcing connecting structure is connected to the D-pillar structure, the rear wheel cover and the C-pillar structure, so that the structure strength of the side wall panel assembly composed of the D-pillar structure, the reinforcing connecting structure, the rear wheel cover and the C-pillar structure is higher, which is beneficial to improve the safety of the vehicle.

[0012] Further, the reinforcing connecting structure comprises a first connecting end, a second connecting end and a third connecting end, the first connecting end is connected to the D-pillar structure, the second connecting end is connected to the rear wheel cover, and the third connecting end is connected to the C-pillar structure, and the first connecting end, the second connecting end and the third connecting end are connected in sequence to form a triangle.

[0013] Further, the D-pillar structure, the reinforcing connecting structure, the rear wheel cover and the C-pillar structure form a closed "LY" type structure.

[0014] In some embodiments, the reinforced connection structure includes a first reinforced connection plate and a second reinforced connection plate. The first reinforced connection plate extends in a vertical direction, and the second reinforced connection plate extends in a front-back direction. The second reinforced connection plate is located in front of the first reinforced connection plate and is connected to the first reinforced connection plate. The upper end of the first reinforced connection plate constitutes the first connection end, the lower end of the first reinforced connection plate constitutes the second connection end, and the front end of the second reinforced connection plate constitutes the third connection end.

[0015] According to some embodiments of the present invention, a portion of the reinforcing connection structure arches outward to form a reinforcing bulge, and / or, a weight-reducing hole is formed on the reinforcing connection structure.

[0016] According to some embodiments of the present invention, the plurality of said front contour segments include a first front contour segment, a second front contour segment, and a third front contour segment connected sequentially from top to bottom. The second front contour segment protrudes forward, and the first and third front contour segments are both recessed backward. The second front contour segment has the smallest aspect ratio. The side panel assembly further includes a rear seat mounting structure connected to the rear side of the C-pillar structure. The rear seat mounting structure has a mounting protrusion adapted to connect with a rear seat, and the mounting protrusion is adjacent to the portion of the C-pillar structure containing the second front contour segment.

[0017] A vehicle according to a third aspect of the present invention includes: a side panel assembly according to a second aspect of the present invention.

[0018] According to the vehicle of the present invention, by providing the side panel assembly in the above embodiments, the overall strength of the vehicle body structure can be improved, thereby improving safety performance.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of a C-pillar structure at one angle according to an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of the C-pillar structure shown from another angle;

[0023] Figure 3 yes Figure 1 A schematic diagram of the C-pillar structure from another angle;

[0024] Figure 4 is Figure 1 a further perspective view of the C-pillar structure shown in Fig. 1 ;

[0025] Figure 5 is a perspective view of a C-pillar structure according to an embodiment of the present application.

[0026] Reference Signs:

[0027] side wall panel assembly 100:

[0028] C-pillar structure 1,

[0029] C-pillar front part 10,

[0030] front contour line 11, first front contour line segment 111, second front contour line segment 112, third front contour line segment 113,

[0031] C-pillar rear part 20, first reinforcement zone 21, weight reduction hole 211, second reinforcement zone 22,

[0032] C-pillar inner panel 30, turned-over hem 31, protrusion 32,

[0033] C-pillar outer panel 40, C-pillar outer panel body 41, front edge part 42, step part 43,

[0034] D-pillar structure 2,

[0035] rear wheelhouse 3,

[0036] rear seat mounting structure 4,

[0037] reinforcement connection structure 5, first reinforcement connection panel 51, second reinforcement connection panel 52. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or like reference numerals refer to the same or like elements throughout. The embodiments described below are exemplary only, and are not to be taken in a limiting sense, but are merely for the purpose of explanation of the present application.

[0039] Reference is made below to Figures 1-5 The C-pillar structure 1 according to the first aspect of the present application is described below.

[0040] Reference is made below to Figure 1 and Figure 5According to the C-pillar structure 1, a front side profile of the C-pillar structure 1 is a front profile line 11, where the front-rear direction is taken as a reference in the front-rear direction of the vehicle, the front profile line 11 extends in a curve in the up-down direction, the front profile line 11 comprises a plurality of front profile line segments connected in sequence from top to bottom, one of the adjacent two front profile line segments is convex forward and the other is concave backward, the height-width ratio of the adjacent two front profile line segments is different, the front profile line segment has a height d and a chord length L, and the height-width ratio of the front profile line segment is the ratio of the height d to the chord length L, where the chord length refers to the length of the chord line connecting the two end points of the front profile line segment in the extension direction, and the height refers to the distance between the peak point or the valley point of the front profile line segment and the chord line.

[0041] For example Figure 5 As shown in the figure, in the direction from top to bottom, the plurality of front profile line segments comprises a first front profile line segment 111, a second front profile line segment 112 and a third front profile line segment 113 connected in sequence from top to bottom, where the first front profile line segment 111 and the third front profile line segment 113 can be convex forward, and the second front profile line segment 112 is concave backward, or the first front profile line segment 111 and the third front profile line segment 113 can be concave backward, and the second front profile line segment 112 is convex forward, where the chord length of the first front profile line segment 111 is L1, the height is d1, the chord length of the second front profile line segment 112 is L2, the height is d2, the chord length of the third front profile line segment 113 is L3, and the height is d3, and the three height-width ratios d1 / L1, d2 / L2 and d3 / L3 are all different from each other.

[0042] Optionally, the first front profile line segment 111, the second front profile line segment 112 and the third front profile line segment 113 are each a part of a circular arc segment of a respective circular arc, and the circular arcs of the first front profile line segment 111 and the third front profile line segment 113 are spaced apart from each other and tangent to the circular arc of the second front profile line segment 112, so that the plurality of connected arch-shaped structures collectively form the C-pillar structure 1, the strength of the arch-shaped structure can be utilized to improve the front strength of the C-pillar structure 1, and because the height-width ratios of the front profile line segments are different, the C-pillar structure 1 satisfies the frequency avoidance principle, i.e., the vibration energy of the vehicle does not excite the C-pillar structure 1 to resonate, which helps to strengthen the road excitation path attenuation capability of the C-pillar structure 1 and effectively attenuate the vibration energy at this position.

[0043] According to the C-pillar structure 1 of the embodiment of the present application, by making the front profile line 11 thereof include a plurality of front profile line segments connected in sequence from top to bottom, and one of the adjacent two front profile line segments protrudes forward and the other one is recessed backward, the C-pillar structure 1 is formed as a high-strength structure composed of a plurality of arched structures, and in addition, due to the different height-width ratios of the respective front profile line segments, the C-pillar structure 1 meets the frequency avoidance principle, i.e. avoiding the vibration energy of the vehicle from exciting the C-pillar structure 1 to resonate, which helps to strengthen the road surface and powertrain excitation path attenuation capability of the C-pillar structure 1 and effectively attenuate the vibration energy at this position.

[0044] In some embodiments, the absolute value of the difference between the height-width ratios of the adjacent two front profile line segments is not less than 0.1, for example, the difference between the height-width ratios of the adjacent two front profile line segments can be 0.1, 0.15, 0.2, etc., and of course, the difference between the height-width ratios of the adjacent two front profile line segments can be reasonably selected according to actual conditions on the premise of not less than 0.1.

[0045] Further, referring to Figure 5 , the plurality of front profile line segments include a first front profile line segment 111, a second front profile line segment 112 and a third front profile line segment 113, which are connected in sequence from top to bottom, wherein the second front profile line segment 112 protrudes forward, and the first front profile line segment 111 and the third front profile line segment 113 are both recessed backward, the height-width ratio d1 / L1 of the first front profile line segment 111 is in the range of 0.2-0.35, for example, the height-width ratio of the first front profile line segment 111 can be 0.2, 0.25, 0.3 or 0.35, the height-width ratio d2 / L2 of the second front profile line segment 112 is in the range of 0.02-0.08, for example, the height-width ratio of the second front profile line segment 112 can be 0.02, 0.04, 0.06 or 0.08, and the height-width ratio d3 / L3 of the third front profile line segment 113 is in the range of 0.1-0.21, for example, the height-width ratio of the third front profile line segment 113 can be 0.1, 0.13, 0.16, 0.2 or 0.21, and the height-width ratio of the first front profile line segment 111, the height-width ratio of the second front profile line segment 112 and the height-width ratio of the third front profile line segment 113 can be reasonably selected within the respective height-width ratio value ranges, which can effectively avoid the vibration energy of the vehicle from exciting the C-pillar structure 1 to resonate, and helps to strengthen the road surface and powertrain excitation path attenuation capability of the C-pillar structure 1 and effectively attenuate the vibration energy at this position.

[0046] Further, the height-width ratio of the first front profile segment 111 is 0.28, the height-width ratio of the second front profile segment 112 is 0.05, and the height-width ratio of the third front profile segment 113 is 0.16, so that the vibration energy of the vehicle can be further prevented from exciting the C-pillar structure 1 to resonate, the attenuation capability of the C-pillar structure 1 to the road surface and power assembly excitation path can be strengthened, and the effect of attenuating the vibration energy at this position can be strengthened.

[0047] According to some embodiments of the present application, referring to Figure 1 , the C-pillar structure 1 can include a C-pillar front portion 10 and a C-pillar rear portion 20. The front side profile of the C-pillar front portion 10 is a front profile line 11, and the C-pillar rear portion 20 is connected to the rear side of the C-pillar front portion 10. The C-pillar rear portion 20 can include a first reinforcing area 21, at least a portion of the first reinforcing area 21 being located at the middle of the C-pillar front portion 10 in the up-down direction, and the first reinforcing area 21 being connected to the C-pillar front portion 10. In this way, the first reinforcing area 21 can increase the support effect on the middle-upper portion of the C-pillar front portion 10, improve the impact resistance and deformation resistance of the middle-upper portion of the C-pillar front portion 10, and further improve the structural strength of the entire C-pillar structure 1.

[0048] Further, referring to Figure 1 , the first reinforcing area 21 is triangular. Here, the first reinforcing area 21 can be a triangular structure or can be approximately triangular. The triangular structure is beneficial to enhancing the structural strength of the first reinforcing area 21 and improving the impact resistance and deformation resistance thereof. The longest side of the first reinforcing area 21 is connected to the C-pillar front portion 10, which can improve the overall support force of the first reinforcing area 21 on the C-pillar front portion 10. Of course, the present application is not limited thereto, and the shape of the first reinforcing area 21 can be reasonably selected according to actual needs.

[0049] In some embodiments, the first reinforcing area 21 is formed with a weight-reducing hole 211, so as to be beneficial to reducing the weight of the C-pillar structure 1, thereby reducing the overall vehicle weight and improving the economy.

[0050] According to some embodiments of the present application, referring to Figure 1 , the C-pillar rear portion 20 further includes a second reinforcing area 22, the second reinforcing area 22 being connected to the lower portion of the C-pillar front portion 10, and the second reinforcing area 22 can be triangular. Here, the second reinforcing area 22 can be a triangular structure or can be approximately triangular. In this way, the second reinforcing area 22 can support the lower portion of the C-pillar front portion 10 and further improve the impact resistance and deformation resistance of the lower portion of the C-pillar front portion 10. The second reinforcing area 22 and the first reinforcing area 21 can cooperate to improve the structural strength of the entire C-pillar structure 1. Of course, the present application is not limited thereto, and the shape of the second reinforcing area 22 can be reasonably selected according to actual needs.

[0051] Further, the plurality of front profile line segments include a first front profile line segment 111, a second front profile line segment 112, and a third front profile line segment 113, which are sequentially connected from top to bottom, the second front profile line segment 112 is protruded forward, and the first front profile line segment 111 and the third front profile line segment 113 are both recessed backward, the first reinforcing area 21 is connected with the part of the C-pillar front portion 10 having the first front profile line segment 111 and the second front profile line segment 112, and the second reinforcing area 22 is connected with the part of the C-pillar front portion 10 having the third front profile line segment 113, so that the first reinforcing area 21 and the second reinforcing area 22 can cooperate with each other to jointly support the C-pillar front portion 10, so as to improve the overall structural strength of the C-pillar structure 1, and further improve the vehicle safety.

[0052] According to some embodiments of the present application, with reference to Figures 1-4 , the C-pillar structure 1 can further include a C-pillar outer panel 40 and a C-pillar inner panel 30 in the inner-outer direction. The C-pillar inner panel 30 and the C-pillar outer panel 40 are arranged opposite to each other in the inner-outer direction, the C-pillar inner panel 30 is arranged on the inner side of the C-pillar outer panel 40, i.e. the side of the C-pillar outer panel 40 facing the vehicle interior space, and the front end portion of the C-pillar inner panel 30 is formed with a folded edge 31, where the front end portion refers to the area of the C-pillar inner panel 30 adjacent to the front edge, and the folded edge 31 covers the front edge of the C-pillar outer panel 40 and covers the outer side surface of the C-pillar outer panel 40, where the outer side surface of the C-pillar outer panel 40 refers to the side surface of the C-pillar outer panel 40 facing the vehicle exterior space. In other words, the C-pillar inner panel 30 and the C-pillar outer panel 40 can jointly form the C-pillar structure 1, the front end portion of the C-pillar inner panel 30 is formed with the folded edge 31, the part of the C-pillar inner panel 30 other than the folded edge 31 is located on the inner side of the C-pillar outer panel 40, and the folded edge 31 is reversely folded from the front edge of the C-pillar outer panel 40 to cover the part of the C-pillar outer panel 40 adjacent to the front edge. Optionally, the length of the folded edge 31 can be reasonably selected according to actual needs.

[0053] According to the C-pillar structure 1 of the embodiments of the present application, by covering the front edge of the C-pillar outer panel 40 with the folded edge 31 of the C-pillar inner panel 30 and covering the outer side surface of the C-pillar outer panel 40, the connection strength of the C-pillar inner panel 30 and the C-pillar outer panel 40 can be further improved, and thus the structural strength of the C-pillar structure 1 is improved, and the impact resistance and deformation resistance of the C-pillar structure 1 are improved, which is beneficial to improving the overall vehicle safety.

[0054] According to some embodiments of the present application, the folded edge 31 can be welded to the C-pillar outer panel 40, so that the connection strength of the C-pillar outer panel 40 and the C-pillar inner panel 30 can be further improved.

[0055] In some embodiments, the aspect ratio of the second front profile segment 112 is minimum, and the folded edge 31 is formed at the portion of the C-pillar inner panel 30 corresponding to the second front profile segment 112, at this time, the folded edge 31 can cover the portion of the C-pillar outer panel 40 corresponding to the second front profile segment 112, thereby improving the structural strength of the portion of the C-pillar structure 1 corresponding to the second front profile segment 112.

[0056] Optionally, a plurality of folded edges 31 can be provided, and the plurality of folded edges 31 are arranged at intervals along the extension direction of the second front profile segment 112 of the C-pillar inner panel 30, and the plurality of folded edges 31 can be formed as a ladder-shaped structure, in this way, the connection strength of the C-pillar inner panel 30 and the C-pillar outer panel 40 at each part in the front edge extension direction can be more balanced, thereby improving the overall structural strength of the C-pillar structure 1.

[0057] Further, in combination with Figure 1 and Figure 2 , the front end portion of the C-pillar inner panel 30 is further formed with a protrusion 32, the protrusion 32 is formed by the front end portion of the C-pillar inner panel 30 protruding inward (towards the side away from the C-pillar outer panel 40), that is, the protrusion 32 can be formed by the front end portion of the C-pillar inner panel 30 protruding towards the side of the vehicle interior space, the protrusion 32 can be a plurality of protrusions 32, and the plurality of protrusions 32 are arranged at intervals along the extension direction of the front edge of the C-pillar inner panel 30, and the use of the protrusion 32 can improve the strength of the portion of the C-pillar inner panel 30 corresponding to the second front profile segment 112, thereby improving the overall structural strength of the C-pillar structure 1 to a certain extent.

[0058] Optionally, the protrusion 32 is formed as an arch shape, in this way, the high-strength arch-shaped protrusion 32 can further improve the strength of the portion of the C-pillar inner panel 30 corresponding to the second front profile segment 112, thereby improving the overall structural strength of the C-pillar structure 1 to a certain extent.

[0059] In a specific example, in combination with Figure 1 and Figure 2 , the protrusion 32 and the folded edge 31 can be arranged alternately along the extension direction of the front edge of the C-pillar structure 1, thereby making the structural strength of each part of the C-pillar structure 1 in the extension direction more uniform, preventing the collapse of a certain part due to stress concentration when the vehicle is hit, and improving the passenger's riding safety.

[0060] Further, the protrusion height of the protrusion 32 ranges from 0.3 mm to 0.5 mm, for example, the protrusion height of the protrusion 32 can be 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm or 0.5 mm, the protrusion height of the protrusion 32 can be reasonably selected within the above range, in this way, the height of the protrusion 32 can be too small, for example, less than 0.3 mm, the reinforcing effect on the structural strength of the C-pillar inner panel 30 is not obvious, and the height of the protrusion 32 can be too large, for example, greater than 0.5 mm, which affects the assembly of other parts of the vehicle body structure inside the C-pillar inner panel 30.

[0061] According to some embodiments of the present application, with reference to Figure 1 , the C-pillar outer panel 40 can include a C-pillar outer panel body 41, a front edge portion 42 and a stepped portion 43, wherein the front edge portion 42 is connected to the front edge of the C-pillar outer panel body 41, and the front edge portion 42 and the C-pillar outer panel body 41 are connected by the stepped portion 43. The folded edge 31 can include a folded portion and a support portion connected thereto, wherein the folded portion covers the outer side of the front edge portion 42, and the support portion is supported on the stepped portion 43, so that the connection and cooperation of the folded edge 31 and the front edge portion 42 are more stable, and the structure is simple, facilitating manufacturing and assembly.

[0062] Further, the folded edge 31 can further include a reinforcing rib, the reinforcing rib being arranged on opposite sides of the folded portion in the extension direction of the front edge portion 42, so that the structural strength of the folded edge 31 itself and the connection strength of the folded edge 31 and the C-pillar outer panel 40 can be improved.

[0063] Hereinafter, with reference to Figures 1-5 , a side wall panel assembly 100 according to an embodiment of the second aspect of the present application is described.

[0064] In combination with Figure 1 and Figure 2 , the side wall panel assembly 100 according to the embodiment of the present application comprises a C-pillar structure 1 and a rear seat mounting structure 4. The C-pillar structure 1 is the C-pillar structure 1 in the above embodiment. The rear seat mounting structure 4 is connected to the rear side of the C-pillar structure 1, and the rear seat mounting structure 4 has a mounting convexity adapted to be connected with a rear seat, and the mounting convexity is adjacent to the C-pillar structure 1. In this way, since the C-pillar structure 1 has high strength, when the mounting convexity is connected with the C-pillar structure 1, the connection stability of the mounting convexity and the C-pillar structure 1 can be improved, and the mounting stability of the rear seat can be improved.

[0065] The side wall panel assembly 100 according to the embodiment of the present application can improve the connection stability of the mounting convexity and the C-pillar structure 1 by arranging the C-pillar structure 1 in the above embodiment and arranging the mounting convexity of the rear seat mounting structure 4 adjacent to the C-pillar structure 1, and can improve the mounting stability of the rear seat.

[0066] Further, with reference toFigure 2 The mounting convexity is adjacent to the portion of the C-pillar structure 1 having the second front contour line segment 112, so that the mounting convexity can further improve the structural strength of the portion of the C-pillar structure 1 having the second front contour line segment 112.

[0067] According to some embodiments of the present application, with reference to Figures 1-3 The side wall panel assembly 100 further comprises a D-pillar structure 2, a rear wheel cover 3, and a reinforcing connecting structure 5. Specifically, the front end of the D-pillar structure 2 can be connected to the upper end of the C-pillar structure 1, and the rear wheel cover 3 can be connected to the C-pillar structure 1. The reinforcing connecting structure 5 is arranged in the space jointly defined by the C-pillar structure 1, the D-pillar structure 2, and the rear wheel cover 3, and is connected to the D-pillar structure 2, the wheel cover, and the C-pillar structure 1, so that the D-pillar structure 2, the reinforcing connecting structure 5, the rear wheel cover 3, and the C-pillar structure 1 jointly form a closed structure. The side wall panel assembly 100 of the present embodiment has a higher structural strength, which is beneficial to improving the safety of the vehicle.

[0068] Further, with reference to Figure 1 The reinforcing connecting structure 5 can comprise a first connecting end, a second connecting end, and a third connecting end, wherein the first connecting end is connected to the D-pillar structure 2, the second connecting end is connected to the rear wheel cover 3, and the third connecting end is connected to the C-pillar structure 1. The first connecting end, the second connecting end, and the third connecting end are sequentially connected end to end to form a triangle, so that the reinforcing connecting structure 5 has a higher strength and can more effectively support the C-pillar structure 1, the D-pillar structure 2, and the rear wheel cover 3.

[0069] Further, the D-pillar structure 2, the reinforcing connecting structure 5, the rear wheel cover 3, and the C-pillar structure 1 jointly form a closed "LY" shaped structure. Thus, the "LY" shaped structure can improve the overall strength of the C-pillar structure 1, the D-pillar structure 2, and the rear wheel cover 3, and further improve the overall strength of the rear part of the vehicle, thereby strengthening the ability of the vehicle body to attenuate the excitation path of the road and the powertrain, and effectively attenuating the vibration energy at the corresponding position.

[0070] In some embodiments, with reference to Figure 1The reinforcing connection structure 5 can include a first reinforcing connecting plate 51 and a second reinforcing connecting plate 52, wherein the first reinforcing connecting plate 51 extends in the up-down direction, the second reinforcing connecting plate 52 extends in the front-rear direction, the second reinforcing connecting plate 52 is located at the front side of the first reinforcing connecting plate 51, the rear end of the second reinforcing connecting plate 52 is connected with the first reinforcing connecting plate 51, the upper end of the first reinforcing connecting plate 51 constitutes a first connecting end, the lower end of the first reinforcing connecting plate 51 constitutes a second connecting end, and the front end of the second reinforcing connecting plate 52 constitutes a third connecting end. In this way, the first reinforcing connecting plate 51, the second reinforcing connecting plate 52, the D-pillar structure 2, the rear wheel cover 3 and the C-pillar structure 1 jointly form a closed "LY" shaped structure. The "LY" shaped structure has high strength, which can improve the overall strength of the C-pillar structure 1, the D-pillar structure 2 and the rear wheel cover 3, further improve the overall strength of the rear part of the vehicle, and effectively attenuate the vibration energy at the corresponding position.

[0071] According to some embodiments of the present application, with reference to Figure 1 Part of the reinforcing connection structure 5 is outwardly arched to form a reinforcing convex, where the outward arching refers to the arching towards the side of the vehicle outer space. For example, the first reinforcing connecting plate 51 can be arched towards the side of the vehicle outer space, in which case the cross section of the first reinforcing connecting plate 51 forms a U shape. Alternatively, the second reinforcing connecting plate 52 can be arched towards the side of the vehicle outer space, in which case the cross section of the second reinforcing connecting plate 52 forms a U shape. Preferably, the first reinforcing connecting plate 51 and the second reinforcing connecting plate 52 both form arched plates with U-shaped cross sections. In this way, the first reinforcing connecting plate 51 and the second reinforcing connecting plate 52 can both form closed buffer cavities with the corresponding plate members on their inner sides, thereby further improving the overall structural strength of the reinforcing connection structure 5.

[0072] According to some embodiments of the present application, the reinforcing connection structure 5 is provided with a weight-reducing hole 211. In this way, the structural strength of the reinforcing connection structure 5 can be ensured while reducing the weight, which is beneficial to reducing the overall weight of the vehicle and improving the economy.

[0073] A vehicle according to the third aspect of the present application will be described below.

[0074] The vehicle according to the embodiments of the present application comprises the side wall panel assembly 100 in the above embodiments.

[0075] The vehicle according to the embodiments of the present application is provided with the side wall panel assembly 100 in the above embodiments, and the side wall panel assembly 100 adopts the C-pillar structure 1 in the above embodiments. In this way, the vibration of the vehicle during driving can be effectively reduced, and the noise can be reduced. At the same time, the safety of the vehicle is further improved due to the high structural strength of the C-pillar structure 1.

[0076] In the description of the specification, reference to "one embodiment", "some embodiments", "an exemplary embodiment", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "in some embodiments", "in an exemplary embodiment", "an example", "a specific example", or "some examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0077] Although embodiments of the application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made hereto without departing from the principles and the scope of the application, which is defined by the claims and their equivalents.

Claims

1. A C-pillar structure, characterized by The application relates to a C-pillar structure, which comprises: a C-pillar structure, a front side profile of the C-pillar structure being a front profile line, the front profile line extending in a curve in the up-down direction, the front profile line comprising a plurality of front profile line segments connected in sequence from top to bottom, one of the adjacent two front profile line segments being convex to the front and the other being concave to the rear, the height-width ratios of the adjacent two front profile line segments being different, the front profile line segment having a sag of d and a chord length of L, the height-width ratio being the ratio of the d to the L, the C-pillar structure comprising: a C-pillar outer plate; a C-pillar inner plate, the C-pillar inner plate being arranged at the inner side of the C-pillar outer plate, a front end portion of the C-pillar inner plate being formed with a turned-over edge cover, the turned-over edge cover covering the front edge of the C-pillar outer plate and covering the outer side surface of the C-pillar outer plate; the height-width ratios of the adjacent two front profile line segments being different, the absolute value of the difference between the height-width ratios of the adjacent two front profile line segments being not less than 0.

1.

2. The C-pillar structure according to claim 1, characterized in that the plurality of front profile line segments comprising a first front profile line segment, a second front profile line segment and a third front profile line segment connected in sequence from top to bottom, the second front profile line segment being convex to the front, the first front profile line segment and the third front profile line segment being concave to the rear, wherein the height-width ratio of the second front profile line segment is the smallest, and the turned-over edge cover is formed on the second front profile line segment.

3. A side wall panel assembly characterized by, The application relates to a C-pillar structure, which comprises: a C-pillar structure, the C-pillar structure being the C-pillar structure according to any one of claims 1-2; a D-pillar structure, a front end of the D-pillar structure being connected with an upper end of the C-pillar structure; a rear wheel cover, the rear wheel cover being connected with the C-pillar structure; a reinforcing connecting structure, the reinforcing connecting structure being arranged in a space jointly arranged by the C-pillar structure, the D-pillar structure and the rear wheel cover, the reinforcing connecting structure being connected with the D-pillar structure, the wheel cover and the C-pillar structure, so that the D-pillar structure, the reinforcing connecting structure, the rear wheel cover and the C-pillar structure jointly form a closed structure.

4. The side panel assembly of claim 3, wherein, the reinforcing connecting structure comprising a first connecting end, a second connecting end and a third connecting end, the first connecting end being connected with the D-pillar structure, the second connecting end being connected with the wheel cover, and the third connecting end being connected with the C-pillar structure, the first connecting end, the second connecting end and the third connecting end being connected in sequence to form a triangle.

5. The side panel assembly of claim 4, wherein, the D-pillar structure, the reinforcing connecting structure, the rear wheel cover and the C-pillar structure jointly forming a closed "LY" type structure.

6. The side panel assembly of claim 4, wherein, the reinforcing connecting structure comprising a first reinforcing connecting plate and a second reinforcing connecting plate, the first reinforcing connecting plate extending in the up-down direction, the second reinforcing connecting plate extending in the front-rear direction, the second reinforcing connecting plate being located at the front side of the first reinforcing connecting plate and connected with the first reinforcing connecting plate, the upper end of the first reinforcing connecting plate constituting the first connecting end, the lower end of the first reinforcing connecting plate constituting the second connecting end, and the front end of the second reinforcing connecting plate constituting the third connecting end.

7. The side panel assembly of claim 3, wherein, part of the reinforcing connecting structure being convex to the outside to form a reinforcing convex package, and / or the reinforcing connecting structure being formed with a weight-reducing hole.

8. The side panel assembly of claim 3, wherein, The plurality of the front profile line segments comprises a first front profile line segment, a second front profile line segment and a third front profile line segment connected in sequence from top to bottom, the second front profile line segment is convex towards front, and the first front profile line segment and the third front profile line segment are both concave towards rear, wherein the second front profile line segment has the smallest aspect ratio; The side wall panel assembly further comprises a rear seat mounting structure connected at a rear side of the C-pillar structure, the rear seat mounting structure has a mounting convex adapted to be connected with a rear seat, and the mounting convex is adjacent to the portion of the C-pillar structure having the second front profile line segment.

9. A vehicle characterized by comprising: Comprising: The side wall panel assembly according to any one of claims 3-8.

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