A vehicle body door ring structure and vehicle

Abstract

The application discloses a vehicle body door ring structure and a vehicle, and solves the technical problem that an A column and an upper side beam are prone to being bent in the prior art. The vehicle body door ring structure comprises a door ring body and a first pipe beam. The door ring body comprises an upper side beam, a lower side beam and at least two columns. The at least two columns are distributed at intervals along the length direction of the vehicle body, and the two ends of the columns are connected to the upper side beam and the lower side beam respectively to form a ring structure. The upper side beam is provided with a cavity, and the cavity extends from the first column to the last column along the axial direction of the upper side beam. The first pipe beam is located in the cavity and connected to the upper side beam and each column. The first pipe beam is arranged in the original cavity of the upper side beam of the door ring body, and the strength of the door ring body and the upper side beam is effectively improved without increasing the size of the cavity of the upper side beam. The first pipe beam is connected to the upper side beam and each column, and the bending resistance of the door ring in the A column area is improved, the impact when the vehicle is subjected to a frontal collision or a rollover is effectively resisted, and the safety of the passenger cabin is protected.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of door rings, and particularly relates to a vehicle body door ring structure and a vehicle. BACKGROUND

[0002] At present, automobiles are developing towards electrification, networking and intelligence, which has brought qualitative improvement to people's travel mode. Although various active safety technologies equipped in vehicles are continuously reducing the probability of automobile accidents, passive structural safety is still the most basic requirement of vehicles, especially the last line of defense of vehicle body safety for protecting drivers and passengers. In the process of electrification of automobiles, lightweight is an important factor to improve the endurance of vehicles, but lightweight of the vehicle body is not simply weight reduction, and must be based on the premise of ensuring the strength and safety performance of the vehicle body. Under the demand of vehicle body safety and lightweight, an integrated hot forming door ring emerges as the times require.

[0003] However, in order to improve the comfort and safety of the driver's front view, the smaller the A-pillar obstacle angle is, the better, that is, the thinner the vehicle body door ring is needed in the A-pillar area. However, when the vehicle is in a frontal collision, the A-pillar is a key component of the frontal force transmission, which protects the passenger compartment from deformation and the passengers from injury. Especially for off-road vehicles, the A-pillar is more upright, and the effect of frontal collision force transmission is not good, and the position of the A-pillar and the upper rail is easy to bend. SUMMARY

[0004] To solve the technical problem that the A-pillar and the upper rail are easy to bend, the application provides a vehicle body door ring structure and a vehicle.

[0005] In the first aspect of the application, a vehicle body door ring structure is provided, comprising:

[0006] A door ring body comprising an upper rail, a lower rail and at least two columns, the at least two columns are spaced apart along the length direction of the vehicle body, and the two ends of the columns are connected to the upper rail and the lower rail respectively to form a ring structure, the upper rail is provided with a cavity, the cavity extends from the first column to the last column along the axial direction of the upper rail;

[0007] A first pipe beam located in the cavity and connected to the upper rail and each column.

[0008] In some embodiments, the first pipe beam comprises a first pipe segment attached to the upper rail and a second pipe segment spaced apart from the upper rail;

[0009] The vehicle body door ring structure further comprises a bracket connected to the second pipe segment, and the second pipe segment is connected to the upper rail through the bracket.

[0010] In some embodiments, the bracket comprises an upper bracket and a lower bracket, the upper bracket and the lower bracket enclosing a first mounting cavity, the upper bracket and the lower bracket partially overlapping and connected.

[0011] In some embodiments, the cross section of the first tube beam is an irregularly shaped closed structure; the Z direction dimension of the cross section of the first tube beam is the largest.

[0012] In some embodiments, the first tube beam is provided with a plurality of avoiding holes and / or electrophoresis holes.

[0013] In some embodiments, the number of the columns is three, which are A column, B column and C column respectively; the first tube beam and the upper side beam are welded by two protective welding;

[0014] The upper side beam is provided with three groups of plug welding holes, which are first group of plug welding holes, second group of plug welding holes and third group of plug welding holes respectively, the first group of plug welding holes is located near the A column, the second group of plug welding holes is located near the front of the B column, and the third group of plug welding holes is located between the B column and the C column.

[0015] The two plug welding holes in each group of plug welding holes are arranged in an up-down staggered manner.

[0016] In the second aspect of the present application, a vehicle is provided, the side wall of the vehicle comprising:

[0017] The vehicle body door ring structure described above, the first tube beam is provided with a first connecting part;

[0018] A second tube beam is connected to the rear end of the first tube beam, and the second tube beam is provided with a second connecting part corresponding to the first connecting part.

[0019] In some embodiments, the C column further comprises a C column inner panel and a C column reinforcing plate, the C column inner panel and the C column reinforcing plate enclosing a second mounting cavity; the C column inner panel is connected with the second tube beam and the first tube beam;

[0020] The side wall further comprises one or more roof cross beams, which are distributed in the length direction of the vehicle body and connected with the upper side beam of the door ring body.

[0021] In some embodiments, the number of the roof cross beams is three, which are first roof cross beam, second roof cross beam and third roof cross beam respectively.

[0022] The side wall further comprises a first connecting plate, wherein a part of the first connecting plate is connected with the second roof cross beam, and another part is connected with the A column inner panel, the B column inner panel and the first tube beam.

[0023] In some embodiments, the side wall further comprises a second connecting plate, one part of the second connecting plate is connected with the third roof cross beam, and the other part is connected with the C-pillar inner panel and the second tube beam.

[0024] According to one or more embodiments of the present application, a vehicle body door ring structure and a vehicle are provided. The vehicle body door ring structure comprises a door ring body and a first tube beam. The door ring body comprises an upper edge beam, a lower edge beam, and at least two upright columns. The at least two upright columns are spaced apart along the length direction of the vehicle body, and the two ends of the upright columns are connected with the upper edge beam and the lower edge beam respectively to form a ring structure. The upper edge beam is provided with a cavity extending along the axial direction of the upper edge beam from the first upright column to the last upright column. The first tube beam is located in the cavity and connected with the upper edge beam and each upright column. The first tube beam is arranged inside the original cavity of the upper edge beam of the door ring body, which effectively improves the strength of the door ring body and the upper edge beam without increasing the size of the cavity of the upper edge beam. The first tube beam is connected with the upper edge beam and each upright column, which can improve the bending resistance of the door ring in the A-pillar area, effectively resist the impact when the vehicle is in a frontal collision or rollover, and protect the safety of the passenger compartment.

[0025] Therefore, when the vehicle receives a collision, the first tube beam arranged inside the cavity of the upper edge beam can bear part of the collision load, thereby reducing the collision load transmitted to the upper edge beam and reducing the deformation amount of the upper edge beam bending into the passenger compartment, so that the deformation amount of the A-pillar and the upper edge beam meets the requirements of the collision, further improves the strength and bending resistance of the A-pillar and the upper edge beam, and ensures the space of the passenger compartment and the safety of the passengers inside the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A schematic diagram of a vehicle body door ring structure in one or more embodiments of the present application is shown.

[0027] Figure 2 A schematic diagram of the structure of the door ring body and the first tube beam in the present application is shown.

[0028] Figure 3 A partial enlarged view of the M part in the present application is shown. Figure 2

[0029] Figure 4 A partial enlarged view of the N part in the present application is shown. Figure 2

[0030] A partial enlarged view of the N part in the present application is shown. Figure 5 Figure 2 A schematic diagram of the welding assembly of the door ring body and the first tube beam in the present application is shown.

[0031] Figure 6 A partial enlarged view of the A part in the present application is shown. Figure 5

[0032] ​​​Figure 7 A cross-sectional view taken at D-D in the present application is shown. Figure 6 A cross-sectional view taken at D-D in the present application is shown.

[0033] Figure 8 A cross-sectional view taken at D-D in the present application is shown. Figure 5 A cross-sectional view taken at D-D in the present application is shown.

[0034] Figure 9 A cross-sectional view taken at D-D in the present application is shown. Figure 8 A cross-sectional view taken at D-D in the present application is shown.

[0035] Figure 10 A cross-sectional view taken at D-D in the present application is shown. Figure 5 A cross-sectional view taken at D-D in the present application is shown.

[0036] Figure 11 A cross-sectional view taken at D-D in the present application is shown. Figure 10 A cross-sectional view taken at D-D in the present application is shown.

[0037] Figure 12 A cross-sectional view taken at D-D in the present application is shown.

[0038] Figure 13 A cross-sectional view taken at D-D in the present application is shown. Figure 12 A cross-sectional view taken at D-D in the present application is shown.

[0039] Figure 14 A cross-sectional view taken at D-D in the present application is shown. Figure 13 A cross-sectional view taken at D-D in the present application is shown.

[0040] Figure 15 A cross-sectional view taken at D-D in the present application is shown. Figure 12 A cross-sectional view taken at D-D in the present application is shown.

[0041] Figure 16 A cross-sectional view taken at D-D in the present application is shown. Figure 15 A cross-sectional view taken at D-D in the present application is shown.

[0042] BRIEF DESCRIPTION OF DRAWINGS 100 - body door ring structure, 110 - door ring body, 111 - upper side beam, 112 - lower side beam, 113 - A pillar, 1131 - A pillar inner panel upper portion, 114 - B pillar, 1141 - B pillar inner panel, 115 - C pillar, 1151 - C pillar inner panel, 1152 - C pillar reinforcement panel, 116 - first group of plug weld holes, 117 - second group of plug weld holes, 118 - third group of plug weld holes, 119 - spot weld, 120 - first tube beam, 121 - avoidance hole, 130 - bracket, 131 - upper bracket, 132 - lower bracket; 200 - side wall, 210 - second tube beam, 220 - first roof cross beam, 230 - second roof cross beam, 231 - first connecting plate, 232 - first nut, 233 - second bolt, 240 - third roof cross beam, 241 - second connecting plate, 242 - second nut, 243 - second bolt. DETAILED DESCRIPTION

[0043] In order for those skilled in the art to which the present application pertains to more clearly understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0044] In the prior art, due to the slimness of the upper side beam, when the vehicle is subjected to a collision, the upper side beam close to the A-pillar bears a large collision load, so that the upper side beam close to the A-pillar is prone to a large deformation, the upper side beam close to the A-pillar is bent towards the vehicle interior, a large amount of space in the vehicle interior is occupied, and the safety of the occupants in the vehicle interior is affected.

[0045] In order to solve the above technical problems, the present application provides a vehicle body door ring structure and a vehicle. It should be noted that in the art, the length direction of the vehicle is usually referred to as X direction or longitudinal direction, the width direction of the vehicle is usually referred to as Y direction or transverse direction, and the height direction of the vehicle is usually referred to as Z direction or vertical direction. The interpretation of the relevant orientation expressions in the following embodiments can be referred to the above content.

[0046] Please refer to Figure 1 and Figure 2 The first aspect embodiment of the present application provides a vehicle body door ring structure 100, which comprises a door ring body 110 and a first pipe beam 120. The door ring body 110 comprises an upper side beam 111, a lower side beam 112 and at least two upright columns. The at least two upright columns are spaced apart along the length direction of the vehicle body, and the two ends of the upright columns are connected to the upper side beam 111 and the lower side beam 112 respectively to form a ring structure. The upper side beam 111 is provided with a cavity, and the cavity extends along the axial direction of the upper side beam 111 from the first upright column to the last upright column. The first pipe beam 120 is located in the cavity and connected to the upper side beam 111 and each upright column.

[0047] The present application arranges the first pipe beam 120 inside the cavity of the upper side beam 111, which effectively improves the conditions of the A-pillar 113 and the upper side beam 111 without increasing the size of the cavity. When the vehicle is subjected to a collision, the first pipe beam 120 arranged inside the cavity of the upper side beam 111 can bear a part of the collision load, thereby reducing the collision load transmitted to the upper side beam 111 and reducing the deformation amount of the upper side beam 111 bent into the passenger compartment. In this way, the deformation amount of the A-pillar 113 and the upper side beam 111 meets the requirements of the collision, and the strength and the bending resistance of the A-pillar 113 and the upper side beam 111 are further improved, so as to ensure the space of the passenger compartment and the safety of the passengers in the vehicle interior.

[0048] As shown in the accompanying Figure 1 and the accompanyingFigure 12 As shown, in some embodiments, the number of pillars is three, namely A-pillar 113, B-pillar 114 and C-pillar 115, which are spaced along the length of the vehicle body, and the two ends of the A-pillar 113, B-pillar 114 and C-pillar 115 are connected to the upper side beam 111 and the lower side beam 112 to form a ring structure.

[0049] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 12 As shown, the upper side beam 111 of the present application is provided with a cavity for arranging the first tube beam 120 in the cavity, wherein the first tube beam 120 extends along the A-pillar 113 to the C-pillar 115 and penetrates the entire upper side beam 111. The first tube beam 120 extends along the A-pillar 113 to the C-pillar 115, that is, it can improve the bending strength of the upper side beam 111, A-pillar 113, B-pillar 114 and C-pillar 115, rather than only improving the strength of the local part of the upper side beam 111. In some embodiments, the first tube beam 120 can be made of hot-formed high-strength steel with a tensile strength of 1500MPa-2000MPa, which can well meet the strength requirements of the vehicle in the event of a frontal collision or rollover. In other embodiments, the first tube beam 120 can be made by hot gas expansion process, and the cross-sectional size is designed according to the shape of the door ring cavity, and the shape is designed from front to back. That is, without increasing the size of the cavity of the upper side beam 111, the first tube beam 120 can be arranged inside the cavity of the upper side beam 111, thereby improving the bending strength of the upper side beam 111. The first tube beam 120 can disperse a part of the impact force under the impact force, and can better disperse the sudden impact force; in addition, the first tube beam 120 can also absorb part of the energy, and when subjected to a severe impact, the first tube beam 120 can disperse the impact force more evenly, thereby reducing the impact force of the upper side beam 111.

[0050] Thus, by arranging the first tube beam 120 inside the cavity of the upper side beam 111, without increasing the size of the cavity, the present application effectively improves the condition of the door ring A-pillar 113 and the upper side beam 111, in addition, the tube beam is designed with the shape, which can well fit the inner cavity of the door ring, and the cross-sectional shape and size can be optimized, further improving the bending resistance of the door ring in the A-pillar 113 area.

[0051] As shown in the accompanying drawings Figure 11 and the accompanying drawings Figure 14As shown, in some embodiments, the first pipe beam 120 includes a first pipe segment that fits against the upper beam 111 and a second pipe segment spaced apart from the upper beam 111. Because the first pipe beam 120 needs to be designed to conform to the shape of the upper beam 111, it must fit snugly against the cavity of the upper beam 111. The cross-sectional area of ​​the upper beam 111 cavity is larger in some areas and smaller in others. Therefore, to ensure that the first pipe beam 120 is placed within the cavity of the upper beam 111, the cross-sectional area of ​​the first pipe beam 120 is smaller than the cross-sectional area of ​​the upper beam 111 cavity. Furthermore, to ensure that the cross-sectional area of ​​the first pipe beam 120 does not vary excessively, the first pipe beam 120 will fit snugly against the upper beam 111 in some areas, while gaps will exist between the first pipe beam 120 and the upper beam 111 in others.

[0052] As attached Figure 1 As shown, in some embodiments, along the length of the vehicle, the perimeter of the cross-section of the first tube beam 120 varies from 0% to 15% from the front to the rear of the vehicle, conforming to the cavity design of the upper beam 111. This ensures that the first tube beam 120 can be installed within the cavity of the upper beam 111, while also improving the strength of the first tube beam 120. If the perimeter variation of the cross-section at the first and second ends of the first tube beam 120 is large, the strength of the first tube beam 120 will be weakened, which is not conducive to improving the overall strength. Therefore, the perimeter variation of the cross-section at the first and second ends of the first tube beam 120 is small, which ensures the strength of the first tube beam 120.

[0053] In some embodiments, the first tube beam 120 has an internal hollow structure. The first tube beam 120 can better conform to the cavity design of the upper beam 111, which can reduce weight while ensuring strength.

[0054] As attached Figure 14 As shown, since there is still a gap between the second segment of the second tube beam 210 and the upper side beam 111, in some embodiments, the vehicle body door ring structure 100 also includes a bracket 130 connected to the second tube segment, and the second tube segment is connected to the upper side beam 111 through the bracket 130. That is, it can ensure that the first tube beam 120 can be designed to conform to the shape and ensure the strength of the first tube beam 120, while in areas where the first tube beam 120 cannot be directly connected to the upper side beam 111, it is connected through the bracket 130, thereby increasing the strength of the upper side beam 111.

[0055] As attached Figure 2 Appendix Figure 4 and attached Figure 14As shown, in some embodiments, the bracket 130 includes an upper bracket 131 and a lower bracket 132, which together form a first mounting cavity. The upper bracket 131 and the lower bracket 132 partially overlap and are connected, and the overlapping area is connected to the column. The overlapping area of ​​the upper bracket 131 and the lower bracket 132 can be connected by welding to ensure its connection strength. The upper bracket 131 and the lower bracket 132 forming the first mounting cavity achieves the purpose of weight reduction while ensuring that the second pipe section of the first pipe beam 120 can be connected to the upper side beam 111. One end of the upper bracket 131 is connected to the first pipe beam 120 by welding, and the other end of the upper bracket 131 is bent toward the lower bracket 132. One end of the lower bracket 132 is connected to the first pipe beam 120 by welding, and the other end of the lower bracket 132 is bent toward the upper bracket 131, thus overlapping with a section of the bent upper bracket 131. It can be understood that the upper bracket 131 and the lower bracket 132 are mounted on the first pipe beam 120. The first mounting cavity formed by the upper bracket 131 and the lower bracket 132 facilitates the connection of the first pipe beam 120 to other surrounding parts through the bracket 130, which plays a role in force transmission and thus improves strength.

[0056] As attached Figure 5 Appendix Figure 6 Appendix Figure 7 Appendix Figure 8 Appendix Figure 9 Appendix Figure 10 Appendix Figure 11 As shown, in some embodiments, the cross-section of the first tube beam 120 is an irregularly shaped closed structure, which can better fit the cavity and improve strength; in other embodiments, the Z-direction dimension of the cross-section of the first tube beam 120 is the largest. The cross-section of the first tube beam 120 of this application is irregular. Compared with regular tube beams such as circles and squares, the first tube beam 120 of this application can not only better fit the cavity of the upper beam 111, but also achieve the largest Z-direction dimension of the cross-section of the first tube beam 120, further improving the tensile strength in the Z direction and increasing strength.

[0057] As attached Figure 7 As shown, in some embodiments, the first tube beam 120 is provided with a plurality of clearance holes 121 and / or electrophoresis holes. Electrophoresis holes can provide channels for electrophoretic liquid to pass through between sheet metal parts, improving electrophoretic performance; clearance holes 121 can locally prevent interference between components in position.

[0058] As attached Figure 5 Appendix Figure 6 Appendix Figure 7 Appendix Figure 8 Appendix Figure 9 Appendix Figure 10 Appendix Figure 11As shown in some embodiments, the number of columns is three, namely A column 113, B column 114 and C column 115; the first tube beam 120 is welded to the upper cross beam 111 by two-heat welding 119; the upper cross beam 111 is provided with three groups of plug welding holes, namely first group of plug welding holes 116, second group of plug welding holes 117 and third group of plug welding holes 118, the first group of plug welding holes 116 is located near the A column 113, the second group of plug welding holes 117 is located near the front of the B column 114, and the third group of plug welding holes 118 is located between the B column 114 and the C column 115.

[0059] As shown in the accompanying drawings Figure 5 , the accompanying drawings Figure 6 and the accompanying drawings Figure 7 , in some embodiments, the first group of plug welding holes 116 can include at least two plug welding holes, which can be two plug welding holes, three plug welding holes, four plug welding holes or five plug welding holes. In the area of the first group of plug welding holes 116, the first tube beam 120 can be welded to the upper cross beam 111 by two-heat welding 119. The first group of plug welding holes 116 is distributed between the A column 113 and the B column 114 and close to the A column 113. Since the outer surface of the upper cross beam 111 is not in the same plane but has a three-dimensional shape, in order to ensure the stability of the welding of the first tube beam 120 and the upper cross beam 111, the plug welding holes can be staggered on the side vertical surface and the upper surface of the upper cross beam 111, so as to ensure that the first tube beam 120 has welding points on the side vertical surface and the upper surface of the upper cross beam 111, making the connection of the first tube beam 120 and the upper cross beam 111 more stable. In some embodiments, the first group of plug welding holes 116 can include four plug welding holes, and the adjacent two plug welding holes are staggered up and down. It is ensured that the first tube beam 120 is connected to the side vertical surface and the upper surface of the upper cross beam 111.

[0060] As shown in the accompanying drawings Figure 5 , the accompanying drawings Figure 8 and the accompanying drawings Figure 9As shown, in some embodiments, the second set of plug weld holes 117 may include at least two plug weld holes, specifically two, three, four, or five plug weld holes. In the area of ​​the second set of plug weld holes 117, the first pipe beam 120 and the upper beam 111 can be welded using MIG weld 119. The second set of plug weld holes 117 is distributed between and close to column A 113 and column B 114. Since the outer surfaces of the upper beam 111 are not on the same plane but are three-dimensional, to ensure the stability of the weld between the first pipe beam 120 and the upper beam 111, the plug weld holes can be staggered on the side and top surfaces of the upper beam 111, thereby ensuring that there are weld points on both the side and top surfaces of the first pipe beam 120 and the upper beam 111, making the connection between the first pipe beam 120 and the upper beam 111 more stable. In some embodiments, the second set of plug weld holes 117 may include three plug weld holes, with adjacent plug weld holes staggered vertically. Ensure that the first pipe beam 120 is connected to the side elevation and the upper surface of the upper beam 111.

[0061] As attached Figure 5 Appendix Figure 10 and attached Figure 11 As shown, in some embodiments, the third group of plug weld holes 118 may include at least two plug weld holes, specifically two, three, four, or five plug weld holes. Within the area of ​​the third group of plug weld holes 118, the first pipe beam 120 and the upper side beam 111 can be welded using MIG welding 119. The third group of plug weld holes 118 is distributed between and close to the B-pillar 114 and the C-pillar 115. Since the outer surfaces of the upper side beam 111 are not on the same plane but are three-dimensional, to ensure the stability of the weld between the first pipe beam 120 and the upper side beam 111, the plug weld holes can be staggered on the side and top surfaces of the upper side beam 111, thereby ensuring that there are weld points on both the side and top surfaces of the first pipe beam 120 and the upper side beam 111, making the connection between the first pipe beam 120 and the upper side beam 111 more stable. In some embodiments, the third group of plug weld holes 118 may include three plug weld holes, with adjacent plug weld holes staggered vertically. Ensure that the first pipe beam 120 is connected to the side elevation and the upper surface of the upper beam 111.

[0062] Therefore, the two adjacent plug weld holes in each group are staggered vertically, distributed on the side and top surfaces of the upper beam 111, making the connection between the first pipe beam 120 and the upper beam 111 more stable. The first pipe beam 120 and the upper beam 111 are connected by staggered plug welds. The multi-faceted staggered welding results in a stronger and more stable connection, making the first pipe beam 120 and the upper beam 111, i.e., the upper beam 111 and the door ring body 110, form a whole, with better bending resistance.

[0063] A second aspect of this application provides a vehicle, as shown in the attached... Figure 12As shown, the side wall 200 of the vehicle comprises the door ring structure 100 and the second tube beam 210, the first tube beam 120 is provided with a first connecting part, the second tube beam 210 is connected to the rear end of the first tube beam 120, the second tube beam 210 is provided with a second connecting part corresponding to the first connecting part, and the first connecting part and the second connecting part are overlapped and connected. That is, the first tube beam 120 and the second tube beam 210 can be connected.

[0064] As shown in the accompanying drawings, Figure 16 In some embodiments, the second tube beam 210 and the first tube beam 120 are both hollow structures, the second tube beam 210 is provided with a second connecting part, and the first connecting part and the second connecting part are overlapped and connected. The inner diameter of the second tube beam 210 is larger than that of the first tube beam 120 at the position close to the first tube beam 120. The abutment of the first tube beam 120 and the second tube beam 210 is ensured, so that the first tube beam 120 located in the front part of the roof rail 111 and the second tube beam 210 located in the rear part of the roof rail 111 are connected in series.

[0065] In some embodiments, as shown in the accompanying drawings, Figure 1 , the accompanying drawings Figure 2 , and the accompanying drawings Figure 3 , the first connecting part of the first tube beam 120 is provided with a screw joint r, and the screw joint of the second connecting part of the second tube beam 210 corresponds to the screw joint r of the first connecting part, so as to facilitate the connection of the first tube beam 120 and the second tube beam 210. The first tube beam 120 and the second tube beam 210 are connected by bolts at the position of the screw joint, so that the first tube beam 120 and the second tube beam 210 pass through the entire roof rail 111 cavity, improving the roof pressure performance.

[0066] As shown in the accompanying drawings, Figure 16 In some embodiments, the C pillar 115 further comprises a C pillar inner plate 1151 and a C pillar reinforcing plate 1152, the C pillar inner plate 1151 and the C pillar reinforcing plate 1152 enclose a second mounting cavity; the second tube beam 210 and the first tube beam 120 are located in the second mounting cavity, and the C pillar inner plate 1151 is connected with the second tube beam 210 and the first tube beam 120; the side wall 200 further comprises one or more roof cross beams, which are distributed along the length direction of the vehicle body and are connected with the roof rail 111 of the door ring body 110.

[0067] As shown in the accompanying drawings, Figure 12As shown, in some embodiments, there are three roof beams: a first roof beam 220, a second roof beam 230, and a third roof beam 240. The first roof beam 220 corresponds to the position of the A-pillar 113, the second roof beam 230 corresponds to the position of the B-pillar 114, and the third roof beam 240 corresponds to the position of the C-pillar 115. In some embodiments, the upper beam 111 is located at the front of the vehicle side panel 200, and the upper beam 111 of the door ring body 110 is laterally connected to the first roof beam 220, the second roof beam 230, and the third roof beam 240, respectively, ensuring overall strength.

[0068] In some embodiments, the side panel 200 further includes a first connecting plate 231, wherein a portion of the first connecting plate 231 is connected to the second top cover beam 230, and another portion is connected to the inner plate of the A-pillar 113, the inner plate of the B-pillar 1141, and the first tube beam 120.

[0069] In some embodiments, the first tube beam 120 is located at the B-pillar 114. The first tube beam 120 can be connected to the second roof crossbeam 230 by bolts, so that the upper beam 111, the second roof crossbeam 230 and the B-pillar 114 can be connected into a whole, which is beneficial to the force transmission effect during the side collision and rollover process of the vehicle body.

[0070] As attached Figure 12 Appendix Figure 13 and attached Figure 14 As shown, in some embodiments, the first connecting plate 231 is inclined or a diagonal support. The first connecting plate 231 is located at the joint between the upper beam 111 and the second roof beam 230, and can be connected by threads, for example, by two threaded connections s. At the second section of the first pipe beam 120, that is, at the position where the first pipe beam 120 and the upper beam 111 are spaced apart, the second section of the first pipe beam 120 is welded with an upper bracket 131 and a lower bracket 132. The cavity formed by the upper bracket 131 and the lower bracket 132 is welded with a first nut 232. The upper part of the A-pillar inner plate 1131, the B-pillar inner plate 1141 and the first pipe beam 120 are connected by a first bolt, so that the upper beam 111, the second roof beam 230 and the B-pillar 114 are connected into a whole, which is beneficial to the force transmission effect during the side collision and rollover process of the vehicle body.

[0071] As attached Figure 12 Appendix Figure 15 and attached Figure 16 As shown, in some embodiments, the side panel 200 also includes a second connecting plate 241, a portion of which is connected to the third top cover beam 240 corresponding to the C-pillar 115; the other portion is connected to both the C-pillar inner plate 1151 and the second tube beam 210.

[0072] As attached Figure 1, attached Figure 2 , attached Figure 3 , attached Figure 15 and attached Figure 16 As shown in the attached , in some embodiments, the first tube beam 120 is connected to the second tube beam 210 at the joint position of the upper side beam 111 and the C-pillar 115 through four screw joints r. In some embodiments, a second nut 242 can be welded in the cavity of the first tube beam 120, and the C-pillar inner panel 1151, the second tube beam 210 and the first tube beam 120 are connected by tightening the second bolt 243, so that the first tube beam 120, the second tube beam 210 and the inner and outer panels are connected as a whole.

[0073] As shown in the attached Figure 15 , in some embodiments, the second connecting plate 241 is an inclined support connecting plate or an inclined support, which is located at the joint position of the upper side beam 111 and the third roof cross beam 240, and can be connected by screwing, for example, two screw joints s, and connected to the C-pillar inner panel 1151 and the second tube beam 210 by two bolts.

[0074] Through the above embodiments, the present application has the following advantages or benefits:

[0075] 1. The first tube beam 120 of the present application is arranged inside the original cavity of the upper side beam 111, which effectively improves the strength of the A-pillar 113 and the upper side beam 111 without increasing the size of the cavity.

[0076] 2. The first tube beam 120 of the present application is designed to fit well with the inner cavity of the upper side beam 111, and the cross-sectional shape and size can be optimized to further improve the bending resistance of the door ring body 110 in the A-pillar 113 area.

[0077] 3. The first tube beam 120 of the present application is connected to the second roof cross beam 230 and the B-pillar 114, which is beneficial to the force transmission effect during side collision and rollover of the vehicle body.

[0078] 4. The first tube beam 120 of the present application is connected to the second tube beam 210 by bolts, so that the first tube beam 120 and the second tube beam 210 penetrate through the entire side wall 200 upper side beam 111 cavity from front to back, improving the roof pressure performance.

[0079] 5. The door ring structure and the first tube beam 120 of the present application can be made of hot-formed high-strength steel material, which can effectively resist the impact when the vehicle is involved in a head-on collision or rollover, and protect the safety of the passenger compartment.

[0080] In the present application, unless specifically defined and limited otherwise, the "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "on", "above" and "under" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The "under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0081] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0082] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be broadly understood, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be internal connection of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0083] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically defined.

[0084] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A vehicle body door ring structure, characterized in that, The door ring body comprises an upper edge beam, a lower edge beam and at least two upright columns, the at least two upright columns are spaced along the length direction of the vehicle body, and the two ends of the upright columns are connected with the upper edge beam and the lower edge beam respectively to form a ring structure, the upper edge beam is provided with a cavity, and the cavity extends from the first upright column to the last upright column along the axial direction of the upper edge beam; The first pipe beam is located in the cavity and connected with the upper edge beam and each upright column, and the first pipe beam comprises a first pipe segment attached to the upper edge beam and a second pipe segment spaced from the upper edge beam; The bracket is connected with the second pipe segment, and the second pipe segment is connected with the upper edge beam through the bracket; the bracket comprises an upper bracket and a lower bracket, the upper bracket and the lower bracket form a first mounting cavity, the upper bracket and the lower bracket are partially overlapped and connected, and the overlapping area is connected with the upright column; one end of the upper bracket is connected with the first pipe beam, and the other end of the upper bracket is bent towards the lower bracket; one end of the lower bracket is connected with the first pipe beam, and the other end of the lower bracket is bent towards the upper bracket and partially overlaps with the bent part of the upper bracket; the upper bracket and the lower bracket are assembled on the first pipe beam. The cross section of the first pipe beam is an irregular closed structure, and the Z direction dimension of the cross section of the first pipe beam is the largest.

2. The body door ring structure of claim 1, wherein The first pipe beam is provided with a plurality of avoiding holes and / or electrophoresis holes.

3. The body door ring structure of claim 1, wherein The number of the upright columns is three, which are A column, B column and C column respectively; the first pipe beam is welded with the upper edge beam through two-arc welding; 4. A door ring structure according to any one of claims 1-3, characterized in that The upper edge beam is provided with three groups of plug welding holes, which are first group of plug welding holes, second group of plug welding holes and third group of plug welding holes respectively, the first group of plug welding holes is located close to the A column, the second group of plug welding holes is located close to the front of the B column, and the third group of plug welding holes is located between the B column and the C column; The two plug welding holes in each group of plug welding holes are arranged in an up-down staggered manner. The side wall of the vehicle comprises:

5. A vehicle characterized by comprising: The vehicle body door ring structure of any one of claims 1-4, the first pipe beam is provided with a first connecting part; A second pipe beam is connected to the rear end of the first pipe beam, and the second pipe beam is provided with a second connecting part corresponding to the first connecting part. The C column further comprises a C column inner panel and a C column reinforcing plate, and the C column inner panel and the C column reinforcing plate form a second mounting cavity; the C column inner panel is connected with the second pipe beam and the first pipe beam; 6. The vehicle of claim 5, wherein The side wall further comprises one or more roof cross beams, which are spaced along the length direction of the vehicle body and connected with the upper edge beam of the door ring body. The number of the roof cross beams is three, which are a first roof cross beam, a second roof cross beam and a third roof cross beam respectively; 7. The vehicle of claim 6, wherein The side wall further comprises a first connecting plate, wherein a part of the first connecting plate is connected with the second roof cross beam, and another part of the first connecting plate is connected with the A column inner panel, the B column inner panel and the first pipe beam. The side wall further comprises a second connecting plate, a part of the second connecting plate is connected with the third roof cross beam, and another part of the second connecting plate is connected with the C column inner panel and the second pipe beam.

8. The vehicle of claim 7, wherein, ​

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