An onboarding body, vehicle body and vehicle

Abstract

The embodiment of the application provides a vehicle body, a vehicle body and a vehicle. The vehicle body comprises a side wall upper pipe beam and a reinforcing structure. The length direction of the vehicle body is a first direction. Along the first direction, the side wall upper pipe beam extends from an A-pillar area to a B-pillar area or a C-pillar area of the vehicle. The reinforcing structure is connected with the side wall upper pipe beam, and the reinforcing structure is located outside the inner cavity of the side wall upper pipe beam. The vehicle body provided by the embodiment of the application can reduce the weight on the basis of meeting the small offset collision deformation requirement.

Description

Technical Field

[0001] This application relates to the field of vehicle body technology, and more particularly to a vehicle body, vehicle body, and vehicle. Background Technology

[0002] As vehicle crash test requirements become increasingly stringent and curb weight increases significantly due to extended battery range, the bending of the upper body beam has become a key focus in small overlap frontal crash tests. If the upper body beam is bent, the side curtain airbags will deploy less effectively to protect occupants, negatively impacting user evaluation of the vehicle as a whole.

[0003] In related technologies, the upper beam is usually welded together from inner and outer plates, with reinforcing plates placed between them. This results in a heavy weight and high cost, leading to reduced overall vehicle economy. How to reduce its weight while meeting the deformation requirements in small offset collisions is a pressing issue that needs to be addressed. Utility Model Content

[0004] This application provides an upper body, a vehicle body, and a vehicle, which aims to reduce the weight of the upper body while meeting the requirements for deformation in a small offset collision.

[0005] In a first aspect, embodiments of this application provide a vehicle body, including a side upper tube beam and a reinforcing structure; With the length direction of the upper body as the first direction, along the first direction, the side wall upper tube beam extends from the A-pillar area of ​​the vehicle to the B-pillar area or the C-pillar area. The reinforcing structure is connected to the upper tube beam of the side wall, and the reinforcing structure is located outside the inner cavity of the upper tube beam of the side wall.

[0006] Based on the aforementioned technical methods, the upper side panel tube beam is the main body of the upper side panel beam structure. The reinforcing structure connected to the upper side panel tube beam enhances the overall strength of the upper side panel beam structure, meeting the requirements for small offset collision deformation without needing to reinforce the vehicle body or add auxiliary installation configurations, thus ensuring structural integrity after a collision. Furthermore, replacing the original welded inner and outer panels with the upper side panel tube beam, and strengthening the overall strength of the upper side panel beam structure through partial connections to the upper side panel tube beam, reduces the weight of the upper body, ensuring fuel economy.

[0007] Optionally, the reinforcing structure includes a reinforcing member, the length direction of which is consistent with the length direction of the side wall upper tube beam; The upper body also includes an A-pillar reinforcing plate, one end of which is connected to the A-pillar reinforcing plate, and the other end of which extends to the B-pillar or C-pillar area of ​​the vehicle. With the width direction of the upper body as the second direction, along the second direction, the A-pillar reinforcing plate and the reinforcing member are connected to the outside of the side wall upper tube beam.

[0008] Based on the aforementioned technical means, the A-pillar reinforcing plate and reinforcing components are connected together to the outside of the side wall upper tube beam, thereby reinforcing the entire outside of the side wall upper tube beam, resulting in a good reinforcement effect.

[0009] Optionally, the reinforcing member includes a first reinforcing member and a second reinforcing member, the length directions of the first reinforcing member and the second reinforcing member are both consistent with the length direction of the upper tube beam of the side wall; From the first end of the upper body to the second end, the A-pillar reinforcing plate, the first reinforcing member, and the second reinforcing member are connected in sequence.

[0010] Based on the aforementioned technical means, the reinforcing component includes two reinforcing components, which are flexible in manufacturing and assembly, and easy to maintain and replace later.

[0011] Optionally, the reinforcing structure further includes a third reinforcing member, the length direction of which is consistent with the length direction of the side wall upper tube beam; The upper body also includes an inner A-pillar panel, which is connected to the inner side of the upper tube beam of the side wall along the second direction; The third reinforcing member is connected to the inner panel of the A-pillar. Taking the height direction of the upper vehicle body as the third direction, the third reinforcing member is connected to the lower side of the upper tube beam of the side wall along the third direction.

[0012] Based on the above technical means, the A-pillar reinforcing plate and reinforcing member reinforce the outer side of the entire side upper tube beam, the A-pillar inner plate reinforces the inner front section of the side upper tube beam, and the third reinforcing member locally reinforces the lower side of the side upper tube beam. The reinforcement effect is good, and the upper body has good modal and dynamic stiffness.

[0013] Optionally, one end of the reinforcing member is spot-welded to the A-pillar reinforcing plate; And / or, the third reinforcing member is spot-welded to the inner plate of the A-pillar.

[0014] Based on the above technical means, the connection performance between the reinforcing member and the A-pillar reinforcing plate, and between the third reinforcing member and the A-pillar inner plate, can be guaranteed.

[0015] Optionally, the side wall upper tube beam is welded to the reinforcing structure by arc welding or gas welding.

[0016] The above-mentioned technical means can improve the reliability of the connection between the side wall upper tube beam and the reinforcing structure.

[0017] Optionally, the side panel upper tube beam extends from the A-pillar area of ​​the vehicle to the B-pillar area; The upper body also includes a B-pillar connector, which is an aluminum alloy casting and is connected to the side wall upper tube beam by threaded fasteners.

[0018] The above-mentioned technical means can improve the connection reliability between the side wall upper tube beam and the B-pillar connector, and also help to reduce weight.

[0019] Optionally, the material of the upper tube beam of the side wall is steel, and / or the wall thickness of the upper tube beam of the side wall is 1.2mm-2mm; And / or, the reinforcing structure is made of steel.

[0020] The above-mentioned technical means can ensure the strength of the side wall upper tube beam and the reinforcing structure.

[0021] Secondly, embodiments of this application provide a vehicle body, including the upper body as described above.

[0022] Thirdly, embodiments of this application provide a vehicle, including the body as described above. Attached Figure Description

[0023] Figure 1 A three-dimensional schematic diagram of the upper body provided in the embodiments of this application. Figure 1 ; Figure 2 This is a top view of the upper body provided in an embodiment of this application; Figure 3 This is a structural schematic diagram of the upper tube beam of the side wall of the upper body provided in the embodiments of this application; Figure 4 This is a front view of the upper body provided in an embodiment of this application; Figure 5 A partial schematic diagram of the upper body provided in the embodiments of this application. Figure 1 ; Figure 6 This is a structural schematic diagram of the first reinforcing member in the upper body provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the second reinforcing member in the upper body provided in an embodiment of this application; Figure 8 This is a structural schematic diagram of the B-pillar connector in the upper body provided in an embodiment of this application; Figure 9 A three-dimensional schematic diagram of the upper body provided in the embodiments of this application. Figure 2 ; Figure 10 A three-dimensional schematic diagram of the upper body provided in the embodiments of this application. Figure 3 ; Figure 11 A partial schematic diagram of the upper body provided in the embodiments of this application. Figure 2 ; Figure 12 A schematic diagram of the structure of the upper side wall upper tube beam and the third reinforcing member of the upper body provided in the embodiments of this application. Figure 2 ; Figure 13 This is a schematic diagram of the reinforcing structure in the upper body provided in an embodiment of this application; Figure 14 A schematic diagram of the structure of the third reinforcing member in the upper body provided in an embodiment of this application; Figure 15 This is a schematic diagram showing the performance test results of the upper body provided in an embodiment of this application.

[0024] Explanation of reference numerals in the attached figures: 1-Side upper tube beam, 101-Outer panel, 102-Inner panel, 103-Lower panel, 2-Reinforcing structure, 201-First reinforcing member, 202-Second reinforcing member, 203-Third reinforcing member, 3-A-pillar reinforcing plate, 4-A-pillar inner panel, 5-Extension plate, 6-Front crossbeam connecting plate of roof, 7-Front crossbeam reinforcing plate assembly of roof, 8-Rear crossbeam reinforcing plate assembly of roof, 9-B-pillar connector, 10-First B-pillar reinforcing member, 11-Second B-pillar reinforcing member. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] Reference Figures 1 to 3 The vehicle body provided in this application embodiment includes a side upper tube beam 1 and a reinforcing structure 2; the length direction of the vehicle body is the first direction, and along the first direction, the side upper tube beam 1 extends from the A-pillar area of ​​the vehicle to the B-pillar area or the C-pillar area; the reinforcing structure 2 is connected to the side upper tube beam 1, and the reinforcing structure 2 is located outside the inner cavity of the side upper tube beam 1.

[0027] The first direction can be referenced. Figure 1 and Figure 2 The X-shaped arrow indicates the direction. The A-pillar area is the area where the vehicle's A-pillar is located, the B-pillar area is the area where the vehicle's B-pillar is located, and the C-pillar area is the area where the vehicle's C-pillar is located.

[0028] For vehicles with a B-pillar but no C-pillar, the upper side panel beam 1 extends from the A-pillar area to the B-pillar area. For example, in a small vehicle with only two doors, which has both A and B pillars, the upper side panel beam 1 extends from the A-pillar area to the B-pillar area. For vehicles with both B and C pillars, the upper side panel beam 1 extends from the A-pillar area to the C-pillar area. For example, in a vehicle with two front doors and two rear doors, which has A, B, and C pillars, the upper side panel beam 1 extends from the A-pillar area to the C-pillar area.

[0029] The side upper tube beam 1 has an inner cavity. The cross-sectional shape of the side upper tube beam 1 can be set according to actual needs. For example, the cross-sectional shape can be set to resemble a triangle with rounded corners. The material of the side upper tube beam 1 can be steel. The side upper tube beam 1 can be formed by roll forming or by hot air expansion molding. This embodiment does not limit this.

[0030] The reinforcing structure 2 is connected to the upper tube beam 1 of the side wall to enhance the overall strength of the upper structure of the side wall. The reinforcing structure 2 may include one reinforcing member or multiple reinforcing members. Along the first direction, the length of the reinforcing structure 2 is less than the length of the upper tube beam 1 of the side wall.

[0031] In this embodiment, the upper side panel tube beam 1 is the main body of the upper side panel beam structure. The reinforcing structure 2, connected to the upper side panel tube beam 1, strengthens the overall strength of the upper side panel beam structure. This allows it to meet the small offset collision deformation requirements without needing to reinforce the vehicle body or add auxiliary installation configurations, thus ensuring structural integrity after a collision. Furthermore, replacing the original welded inner and outer panels with the upper side panel tube beam 1, and strengthening the overall strength of the upper side panel beam structure through the reinforcing structure 2 partially connected to the upper side panel tube beam 1, reduces the weight of the upper vehicle body, ensuring economy. The upper side panel beam structure refers to the upper beam structure extending from the A-pillar area to the B-pillar area or C-pillar area of ​​the vehicle, and it includes at least the upper side panel tube beam 1 and the reinforcing structure 2.

[0032] In some embodiments, refer to Figure 1 and Figure 4 The reinforcing structure 2 includes a reinforcing member whose length direction is consistent with the length direction of the side upper tube beam 1; the upper body also includes an A-pillar reinforcing plate 3, one end of the reinforcing member is connected to the A-pillar reinforcing plate 3, and the other end of the reinforcing member extends to the B-pillar area or C-pillar area of ​​the vehicle; the width direction of the upper body is the second direction, and along the second direction, the A-pillar reinforcing plate 3 and the reinforcing member are connected to the outside of the side upper tube beam 1.

[0033] Along the first direction, the length of the reinforcing member is less than the length of the upper tube beam 1 of the side wall. (Refer to...) Figure 1 and Figure 4The side upper tube beam 1 extends from the A-pillar area of ​​the vehicle to the B-pillar area. Correspondingly, one end of the reinforcing member is connected to the A-pillar reinforcing plate 3, and the other end of the reinforcing member extends to the B-pillar area of ​​the vehicle.

[0034] The second direction can be referred to Figure 1 The direction indicated by the Y-arrow. The upper body also includes a front crossbeam reinforcement plate assembly 7 and a rear crossbeam reinforcement plate assembly 8, with the front crossbeam reinforcement plate assembly 7 located in front of the rear crossbeam reinforcement plate assembly 8. The outer side of the side wall upper tube beam 1 is also the side of the side wall upper tube beam 1 that faces away from the front crossbeam reinforcement plate assembly 7. (Refer to...) Figure 3 and Figure 5 The side upper tube beam 1 includes an outer plate 101, and the reinforcing member is specifically connected to the outer plate 101, which can be done by welding. The A-pillar reinforcing plate 3 is at least connected to the outer plate 101 of the side upper tube beam 1, which can also be done by welding.

[0035] In this embodiment, the A-pillar reinforcing plate 3 and the reinforcing member are connected to the outside of the side wall upper tube beam 1 to reinforce the outside of the entire side wall upper tube beam 1, resulting in a good reinforcement effect.

[0036] In some embodiments, refer to Figures 4 to 7 The reinforcing members include a first reinforcing member 201 and a second reinforcing member 202. The length direction of the first reinforcing member 201 and the second reinforcing member 202 is consistent with the length direction of the side upper tube beam 1. From the first end of the upper body to the second end, the A-pillar reinforcing plate 3, the first reinforcing member 201 and the second reinforcing member 202 are connected in sequence.

[0037] The first end of the upper body is its front end, and the second end is its rear end. Along the first direction, the lengths of the first reinforcing member 201 and the second reinforcing member 202 are both less than the length of the side upper tube beam 1. Both the first reinforcing member 201 and the second reinforcing member 202 are connected to the outer plate 101 of the side upper tube beam 1, and the connection method can be welding. The A-pillar reinforcing plate 3, the first reinforcing member 201, and the second reinforcing member 202 are connected sequentially by welding. In this embodiment, the reinforcing members include two reinforcing members, which are flexible in manufacturing and assembly, and easy to maintain and replace later.

[0038] In some embodiments, refer to Figure 1 , Figure 4 , Figure 5 and Figure 8 The side upper tube beam 1 extends from the A-pillar area to the B-pillar area of ​​the vehicle. The upper body also includes a B-pillar connector 9. The end of the second reinforcing member 202 that is away from the first reinforcing member 201 extends to the B-pillar connector 9.

[0039] In some embodiments, refer to Figures 9 to 14The reinforcing structure 2 also includes a third reinforcing member 203, the length direction of which is consistent with the length direction of the side upper tube beam 1; the upper body also includes an A-pillar inner panel 4, which is connected to the inner side of the side upper tube beam 1 along the second direction; the third reinforcing member 203 is connected to the A-pillar inner panel, and taking the height direction of the upper body as the third direction, the third reinforcing member 203 is connected to the lower side of the side upper tube beam 1 along the third direction. The third direction can be referred to Figure 1 The direction indicated by the Z-arrow.

[0040] The inner side of the side upper tube beam 1 is the side facing the front crossbeam reinforcement plate assembly 7 of the roof, and the lower side of the side upper tube beam 1 is the side facing downwards. The cross-sectional shape of the side upper tube beam 1 can be similar to a triangle with rounded corners. The side upper tube beam 1 includes an outer plate 101, an inner plate 102, and a lower plate 103. The A-pillar inner plate 4 is connected to the inner plate 102 of the side upper tube beam 1 and also to the lower plate 103 of the side upper tube beam 1, and the connection method can be welding. The third reinforcement member 203 is specifically connected to the lower plate 103 of the side upper tube beam 1, and the connection method can be welding.

[0041] The upper side beam structure also includes the portion of the A-pillar reinforcing plate 3 connected to the upper side tube beam 1 and the portion of the A-pillar inner plate 4 connected to the upper side tube beam 1. In this embodiment, the A-pillar reinforcing plate 3 and the reinforcing member reinforce the outer side of the entire upper side tube beam 1, the A-pillar inner plate 4 reinforces the inner front section of the upper side tube beam 1, and the third reinforcing member 203 partially reinforces the lower side of the upper side tube beam 1. The reinforcement effect is good, and the upper vehicle body has good modal and dynamic stiffness.

[0042] The upper body also includes an extension plate 5, a front crossbeam connecting plate 6, a front crossbeam reinforcing plate assembly 7, and a rear crossbeam reinforcing plate assembly 8. The extension plate 5 and the front crossbeam connecting plate 6 are both connected to the side upper tube beam 1, and the connection method can be welding, arc welding, or gas welding. The front crossbeam connecting plate 6 is connected to the front crossbeam reinforcing plate assembly 7, and the connection method can be spot welding, bolt connection, etc. The B-pillar connector 9 is also connected to the rear crossbeam reinforcing plate assembly 8, and the connection method can be spot welding, bolt connection, etc.

[0043] It should be noted that, Figure 1 , Figure 2 , Figure 4 , Figure 9 and Figure 10 Only the upper tube beam 1 and reinforcing structure 2 on the left side of the upper body are shown in the diagram. The upper tube beam 1 and reinforcing structure 2 on the right side are arranged symmetrically with those on the left.

[0044] In some embodiments, the side wall upper tube beam 1 and the reinforcing structure 2 are welded together by arc welding, that is, the side wall upper tube beam 1 and the reinforcing structure 2 are welded together by arc welding or gas welding. The A-pillar reinforcing plate 3 and the A-pillar inner plate 4 are also welded to the side wall upper tube beam 1 by arc welding, that is, by arc welding or gas welding.

[0045] When the reinforcing structure 2 includes a first reinforcing member 201, a second reinforcing member 202, and a third reinforcing member 203, the side upper tube beam 1 and the first reinforcing member 201, the second reinforcing member 202, and the third reinforcing member 203 are all welded together. Compared with spot welding, the reliability of welding is higher, thereby improving the connection reliability between the side upper tube beam 1 and the reinforcing structure 2.

[0046] In some embodiments, one end of the reinforcing member is spot-welded to the A-pillar reinforcing plate 3 to ensure connection performance. When the reinforcing member includes a first reinforcing member 201 and a second reinforcing member 202, the A-pillar reinforcing plate 3, the first reinforcing member 201, and the second reinforcing member 202 are spot-welded sequentially.

[0047] In some embodiments, the third reinforcing member 203 is spot-welded to the rear end of the inner A-pillar panel 4 to ensure connection performance.

[0048] In some embodiments, the side upper tube beam 1 extends from the A-pillar region to the B-pillar region of the vehicle; the upper body also includes a B-pillar connector 9, which is an aluminum alloy casting and is connected to the side upper tube beam 1 by threaded fasteners. This arrangement improves the connection reliability between the side upper tube beam 1 and the B-pillar connector 9 and helps to reduce weight.

[0049] The B-pillar connector 9 includes a connecting portion for connecting to the upper side tube beam 1, and the cross-sectional shape of the connecting portion can be V-shaped. The connecting portion connects to the inner plate 102 of the upper side tube beam 1 and to the lower plate 103 of the upper side tube beam 1. The threaded fastener can be a bolt.

[0050] The upper body also includes a first B-pillar reinforcement 10 and a second B-pillar reinforcement 11. The B-pillar connector 9 can be connected to the first B-pillar reinforcement 10 by bolts, and the B-pillar connector 9 can also be connected to the second B-pillar reinforcement 11 by bolts.

[0051] In some embodiments, the side upper tube beam 1 is made of steel, such as high-strength steel or hot-formed steel, and the strength of the steel can be greater than or equal to 1000 MPa to ensure the strength of the side upper tube beam 1. The steel used for the side upper tube beam 1 may have a coating, which may be an aluminum-silicon coating.

[0052] The wall thickness of the upper tube beam 1 of the side wall is 1.2mm-2mm, for example, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 2mm, etc., to ensure the strength of the upper tube beam 1 of the side wall.

[0053] In some embodiments, the reinforcing structure 2 is made of steel, such as high-strength steel or hot-formed steel, and the strength of the steel can be greater than or equal to 800 MPa to ensure the strength of the reinforcing structure 2.

[0054] The upper body provided in this application embodiment can meet the small offset collision deformation requirements without reinforcing the vehicle body or adding auxiliary installation configurations. Compared with the existing solution where the upper beam is usually welded together by inner and outer plates and reinforced plates are arranged between the inner and outer plates, it can achieve a weight reduction of about 25%-30%. In addition, the upper body also has good modal and dynamic stiffness and good overall performance.

[0055] Cross-sectional force tests were conducted on both the existing scheme and the scheme of this application. Under the same displacement conditions, the cross-sectional forces of both were evaluated, with reference to... Figure 15 The test results are presented as curves. Curve A represents the existing solution, and curve B represents the solution of this application. The horizontal axis represents time, and the vertical axis represents the cross-sectional force. The test results show that, under the same displacement conditions, the cross-sectional force of the solution of this application is relatively smaller. The smaller cross-sectional force reflects that this solution can reduce weight while achieving the same performance objectives.

[0056] It should be noted that the aforementioned front-back, up-down, left-right, and inside-out directions are consistent with the front-back, up-down, left-right, and inside-out directions of the vehicle.

[0057] This application also provides a vehicle body, including the aforementioned upper body. Since the vehicle body includes the aforementioned upper body, it also possesses the beneficial effects of the aforementioned upper body, which will not be elaborated further here.

[0058] This application also provides a vehicle including the aforementioned vehicle body.

[0059] The vehicle can be a sedan, commercial vehicle, SUV, sports utility vehicle, etc. It can also be a new energy vehicle, such as a pure electric vehicle or a hybrid vehicle.

[0060] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0061] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0062] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0063] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A vehicle body, characterized in that, It includes the side upper tube beam (1) and the reinforcing structure (2); With the length direction of the upper body as the first direction, along the first direction, the side wall upper tube beam (1) extends from the A-pillar area of ​​the vehicle to the B-pillar area or the C-pillar area; The reinforcing structure (2) is connected to the side wall upper tube beam (1), and the reinforcing structure (2) is located outside the inner cavity of the side wall upper tube beam (1).

2. The upper body according to claim 1, characterized in that, The reinforcing structure (2) includes a reinforcing member, the length direction of which is consistent with the length direction of the side wall upper tube beam (1); The upper body also includes an A-pillar reinforcing plate (3), one end of which is connected to the A-pillar reinforcing plate (3), and the other end of which extends to the B-pillar area or C-pillar area of ​​the vehicle; With the width direction of the upper body as the second direction, along the second direction, the A-pillar reinforcing plate (3) and the reinforcing member are connected to the outside of the side wall upper tube beam (1).

3. The upper body according to claim 2, characterized in that, The reinforcing member includes a first reinforcing member (201) and a second reinforcing member (202), the length directions of the first reinforcing member (201) and the second reinforcing member (202) are both consistent with the length direction of the side wall upper tube beam (1); From the first end of the upper body to the second end, the A-pillar reinforcing plate (3), the first reinforcing member (201) and the second reinforcing member (202) are connected in sequence.

4. The upper body according to claim 2, characterized in that, The reinforcing structure (2) also includes a third reinforcing member (203), the length direction of which is consistent with the length direction of the side wall upper tube beam (1); The upper body also includes an inner A-pillar panel (4), which is connected to the inner side of the side wall upper tube beam (1) along the second direction; The third reinforcing member (203) is connected to the inner panel of the A-pillar. Taking the height direction of the upper body as the third direction, the third reinforcing member (203) is connected to the lower side of the upper tube beam (1) of the side wall along the third direction.

5. The upper body according to claim 4, characterized in that, One end of the reinforcing member is spot welded to the A-pillar reinforcing plate (3); And / or, the third reinforcing member (203) is spot welded to the inner plate of the A-pillar (4).

6. The upper body according to any one of claims 1 to 5, characterized in that, The side upper tube beam (1) and the reinforcing structure (2) are welded together by electric arc welding or gas welding.

7. The upper body according to any one of claims 1 to 5, characterized in that, The side wall upper tube beam (1) extends from the A-pillar area of ​​the vehicle to the B-pillar area; The upper body also includes a B-pillar connector (9), which is an aluminum alloy casting, and the B-pillar connector (9) is connected to the side wall upper tube beam (1) by threaded fasteners.

8. The upper body according to any one of claims 1 to 5, characterized in that, The material of the upper tube beam (1) of the side wall is steel, and / or the wall thickness of the upper tube beam (1) of the side wall is 1.2mm-2mm; And / or, the reinforcing structure (2) is made of steel.

9. A vehicle body, characterized in that, Includes the upper body as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Including the vehicle body as described in claim 9.

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