Automobile body and automobile

Abstract

The automobile body comprises an upper automobile body part, a lower automobile body part and an automobile body reinforcing part, the upper automobile body part comprises a first butt joint part and a reinforcing connecting part, the lower automobile body part comprises a second butt joint part, and the first butt joint part and the second butt joint part are matched and fixedly connected. The upper vehicle body part and the lower vehicle body part are encircled to form a vehicle cabin assembly, and the vehicle body reinforcing part comprises an upper reinforcing part which is mounted on a reinforcing connecting part on the vehicle cabin assembly. According to the automobile body, an assembling and connecting process different from the prior art is adopted, the upper automobile body part is not influenced and limited by the upper reinforcing part when being connected with the lower automobile body part, so that a material reducing groove or a material reducing avoiding hole formed in the upper reinforcing part can be omitted, the rigidity and the strength of the upper reinforcing part are improved, and the cost is reduced. And finally, the rigidity and strength of the whole automobile body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation tools, in particular to an automobile body and a vehicle. Background Art

[0002] Vehicle body rigidity and strength are crucial to vehicle safety. These factors are related to both the rigidity and strength of the vehicle components themselves and the way they are assembled and connected.

[0003] Some existing technologies have to sacrifice the rigidity and strength of multiple body parts in order to achieve specific connections between them. Therefore, there is still much room for improvement in the existing technologies in terms of improving the overall rigidity and strength of the body. For example:

[0004] The upper body parts and upper reinforcements are usually pre-connected to form an upper body assembly, and then the upper body assembly as an assembly is connected to the lower body parts through the upper body parts. However, the tooling equipment used to connect the upper body parts to the lower body parts will have difficulty functioning due to interference and obstruction from the upper reinforcements. Therefore, it is necessary to provide material reduction grooves and material reduction avoidance holes in the upper reinforcements to avoid the tooling equipment. Utility Model Content

[0005] In view of this, the present invention provides an automobile body with higher rigidity and strength, and also provides a vehicle including the automobile body.

[0006] The automobile body of the present invention includes an upper body part, a lower body part and a body reinforcement part. The upper body part includes a first docking portion and a reinforcement connection portion, and the lower body part includes a second docking portion. The first docking portion and the second docking portion are adapted and fixedly connected, and the upper body part and the lower body part are surrounded to form a cabin assembly. The body reinforcement part includes an upper reinforcement part, and the upper reinforcement part is installed on the reinforcement connection portion on the cabin assembly.

[0007] In some embodiments, the first docking portion and the second docking portion are fixed by riveting.

[0008] In some embodiments, the first docking portion and the second docking portion are connected by a self-piercing rivet.

[0009] In some embodiments, the reinforcing connection portion is fixed to the upper reinforcement member by welding.

[0010] In some embodiments, the reinforced connection portion is fixed to the upper reinforcement member by spot welding.

[0011] In some embodiments, the upper reinforcement includes an extended cover portion, and at least a portion of the first docking portion, at least a portion of the second docking portion, and at least a portion of the extended cover portion are stacked.

[0012] In some embodiments, the extended cover portion is fixedly connected to the lower body member.

[0013] In some embodiments, the first docking portion and the second docking portion are located on an inner side of the extended covering portion, and the inner side of the extended covering portion is a side of the extended covering portion that is relatively close to the vehicle cabin space.

[0014] In some embodiments, the upper body member comprises a trunk inner panel, the lower body member comprises a trunk floor panel, and the upper reinforcement member comprises a trunk reinforcement panel;

[0015] The first docking portion is protruding from the lower edge of the trunk inner panel, the peripheral edge of the trunk inner panel is fixedly connected to the trunk reinforcement plate as a reinforcing connection portion, and the second docking portion is bent and connected to the side edge of the trunk bottom panel. The cabin space includes the trunk space formed by the trunk inner panel and the trunk bottom panel.

[0016] In some embodiments, the trunk reinforcement plate is welded to the periphery of the trunk inner panel, and the trunk reinforcement plate covers a side of the trunk inner panel away from the trunk space; and / or,

[0017] The upper reinforcement also includes an extended covering portion protruding from the lower edge of the trunk reinforcement plate, and the extended covering portion, the first docking portion and the second docking portion are stacked.

[0018] The vehicle provided by the utility model comprises the above automobile body.

[0019] The automobile body of the present invention adopts an assembly and connection process different from that of the prior art. The upper body assembly, which was originally connected to the lower body part as an assembly, is split into an upper body part and an upper reinforcement. The upper body part, which was originally separated from the upper reinforcement, is first connected to the lower body part separately to pre-form a cabin assembly. The cabin assembly is an assembly, and then the upper reinforcement is connected to the upper body part to improve the rigidity and strength of the upper body part. That is, the upper body part is connected to the lower body part separately, and the connection between the upper body part and the lower body part is completed before the connection between the upper reinforcement and the upper body part. This means that the upper body part is not affected or restricted by the upper reinforcement when being connected to the lower body part. Therefore, the material reduction groove or material reduction avoidance hole opened on the upper reinforcement can be omitted, thereby improving the rigidity and strength of the upper reinforcement itself, and ultimately improving the rigidity and strength of the entire automobile body, so that the automobile body can withstand greater torsional and bending forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an exploded view of the local structure of a car body according to one embodiment of the present invention.

[0021] Explanation of the accompanying drawings: 10, upper body part; 11, trunk inner panel; 12, first docking portion; 13, reinforced connection portion; 20, lower body part; 21, trunk floor; 22, second docking portion; 30, upper reinforcement; 31, trunk reinforcement plate; 32, extended covering portion. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] The present invention provides an automobile body and a vehicle including the same. The automobile body can be used for conventional fuel vehicles, hybrid vehicles, or pure electric vehicles. An automobile body is typically formed by assembling and connecting numerous body parts, which are connected by welding, splicing, and fasteners. Based on their mechanical properties and functions, each body part can be divided into structural components, reinforcement components, and exterior body panels. The following describes existing body parts and their structural features.

[0025] A traditional automobile body includes a lower body part 20, and an upper body assembly consisting of an upper body part 10 and an upper reinforcement 30. The lower body part 20 includes an engine compartment partition, a cab floor and a trunk floor 21. The upper body part 10 is also called an upper body inner panel. The upper body part 10 is used to be spliced and enclosed with the lower body part 20 to form a cabin space. The cabin space includes the engine compartment space, the cockpit space and the trunk space. The upper reinforcement 30 usually covers the outer side of the upper body part 10, that is, covers the side of the upper body part 10 facing away from the cabin space.

[0026] The traditional automobile body assembly process involves pre-welding the upper body member 10 and the upper reinforcement member 30 to form the upper body assembly. The upper body assembly is then assembled as a single unit, and the upper body member 10 is riveted to the lower body member 20 to create the aforementioned cabin space. To rivet the upper body member 10 to the lower body member 20 using riveting equipment, such as a self-piercing riveting device (also known as an SPR gun) to rivet the first riveted portion of the upper body member 10 and the second riveted portion of the lower body member 20, the upper reinforcement member 30 is pre-formed with a material reduction groove and a material reduction avoidance hole, allowing the riveting equipment to pass through the groove / material reduction avoidance hole and then act on the first riveted portion.

[0027] Clearly, the prior art practice of pre-designing a material reduction groove / reduction avoidance hole in the upper reinforcement 30 compromises the rigidity and strength of the upper reinforcement 30 itself in exchange for the feasibility of riveting the upper and lower body sections 10 and 20. The mechanical properties of the upper reinforcement 30 weakened by the material reduction groove / reduction avoidance hole inevitably negatively impact the mechanical properties of the entire vehicle body, such as torsional stiffness.

[0028] In view of this, the present invention provides an automobile body that can overcome the above-mentioned defects. On the one hand, the automobile body of the present invention can follow the body component connection method of the existing technology to ensure the connection strength between the various body components. On the other hand, it can take into account the mechanical properties of the body components themselves, thereby taking the overall mechanical properties of the automobile body to a higher level.

[0029] See Figure 1 The automobile body of the present invention includes a cabin assembly and a body reinforcement. The cabin assembly includes an upper body part 10 and a lower body part 20. The upper body part 10 includes a first docking portion 12 and a reinforcement connection portion 13. The lower body part 20 includes a second docking portion 22. The first docking portion 12 and the second docking portion 22 are adapted and fixedly connected. Through the adaptation and connection of the first docking portion 12 and the second docking portion 22, the upper body part 10 and the lower body part 20 are surrounded to form a cabin space. The body reinforcement includes an upper reinforcement 30 fixedly installed on the reinforcement connection portion 13. The upper reinforcement 30 is used to compensate for the insufficient mechanical properties of the upper body part 10, thereby improving the rigidity and strength of the cabin assembly.

[0030] It should be noted that the upper body part 10 and the upper reinforcement 30 do not specifically refer to specific body parts at a certain local position on the car body. The scope of the upper body part 10 is broad, including the inner panel of the cockpit pillar, the front fender, the side panel, the trunk inner panel 11, etc. The upper reinforcement 30 is also a collection of various reinforcements used to be installed on the above-mentioned upper body part 10 to compensate for the mechanical properties of the above-mentioned upper body part 10.

[0031] In some embodiments, the underbody member 20 is a one-piece casting, meaning that both the cab floor and the trunk floor 21 are formed from a single, integral casting. The underbody member 20 may be a die-casting. Compared to conventional underbody members 20 formed by assembling and connecting multiple underbody components, the underbody member 20 of the present invention has greater overall rigidity, making it more suitable for harsh road conditions and extreme driving conditions. Therefore, the vehicle body of the present invention does not require a reinforcing structure to enhance the rigidity of the underbody member 20.

[0032] In some embodiments, the first docking portion 12 and the second docking portion 22 are both plate-like structures, riveted together to form the vehicle cabin space between the upper body member 10 and the lower body member 20. Specifically, the first docking portion 12 and the second docking portion 22 are connected by self-piercing rivets. Before riveting, the upper body member 10 and the lower body member 20 are first clamped together using a vehicle body fixture to stack the first docking portion 12 and the second docking portion 22. Then, an SPR gun is used to apply force to the side of the first docking portion 12 facing away from the second docking portion 22 and the side of the second docking portion 22 facing away from the first docking portion 12, respectively, so that the rivets squeeze the first docking portion 12 and the second docking portion 22.

[0033] It should be noted that when the first docking portion 12 and the second docking portion 22 are riveted and fixed, the upper body member 10 and the upper reinforcement 30 are in a separated state, that is, the upper body member 10 is first riveted to the lower body member 20 alone. When the SPR gun applies force to the first docking portion 12, there is no upper reinforcement 30 on the outside of the first docking portion 12 to block or interfere. The cabin assembly is formed at the moment when the upper body member 10 and the lower body member 20 are riveted and fixed to form the cabin space.

[0034] It is understandable that in other embodiments, the first docking portion 12 and the second docking portion 22 may also be fixed by other riveting methods, or by other connection methods other than riveting.

[0035] In some embodiments, the reinforcing connection portion 13 is welded to the upper reinforcement member 30, and the two can be spot-welded using a spot welding gun. As a preferred embodiment, after the upper reinforcement member 30 and the reinforcing connection portion 13 are welded, the upper reinforcement member 30 is located outside the upper body member 10, that is, on the side of the upper body member 10 facing away from the vehicle cabin. It should be noted that when the reinforcing connection portion 13 is welded to the upper reinforcement member 30, the upper body member 10 and the lower body member 20 are already fixedly connected by riveting or other connection methods to form the vehicle cabin assembly. In other words, the upper reinforcement member 30 is now welded separately to the reinforcing connection portion 13.

[0036] It is understandable that in other embodiments, the upper reinforcement 30 and the reinforcement connection portion 13 may also be fixed by other welding methods, or by other connection methods other than welding.

[0037] In some embodiments, the upper reinforcement 30 includes a reinforcement body and an extended cover portion 32. The reinforcement body covers the outer side of the upper body member 10. The shape and profile of the reinforcement body match the shape and profile of the upper body member 10, thereby better protecting the upper body member 10 and improving the mechanical properties of the upper body member 10. The extended cover portion 32 protrudes from the reinforcement body and extends outward. At least a portion of the first docking portion 12, at least a portion of the second docking portion 22, and at least a portion of the extended cover portion 32 are stacked.

[0038] The extended covering portion 32 is used to improve the mechanical properties of the first and second docking portions 12, 22. This prevents the torsional or bending stress from concentrating on the first and second docking portions 12, 22 when the vehicle body is subjected to large bending or twisting forces, causing fatigue damage and subsequent connection failure. This allows the first and second docking portions 12, 22 to be designed to be thinner and lighter, allowing riveting equipment to quickly and easily rivet the first and second docking portions 12, 22 together.

[0039] To further enhance the mechanical performance of the entire vehicle body, the extended cover portion 32 extends to the lower body member 20 and is fixedly connected thereto, specifically by welding, riveting, threading, or a splice-fit connection. This arrangement secures the upper reinforcement 30 and lower body member 20 to form a single unit with high rigidity and strength. When the vehicle body is subjected to significant bending or torsional forces, the upper reinforcement 30 and lower body member 20 help maintain the relative position between the upper and lower body members 10, 20, preventing relative movement between the first and second docking portions 12, 22, which could result in fatigue damage or connection failure.

[0040] Optionally, the first docking portion 12 and the second docking portion 22 are located on a side of the extended covering portion 32 relatively close to the cabin space, that is, the extended covering portion 32 is on the outside of the first docking portion 12 and the second docking portion 22, and along the orientation away from the cabin space, the first docking portion 12-the second docking portion 22-the extended covering portion 32 are arranged in sequence. Of course, the second docking portion 22-the first docking portion 12-the extended covering portion 32 can also be arranged in sequence along the orientation away from the cabin space.

[0041] Figure 1 The car body shown is a car trunk area body component, the upper body part 10 is the trunk inner panel 11, the lower body part 20 is the trunk floor 21 part of the integrally cast lower body part 20, Figure 1The upper reinforcement member 30 shown in the figure is a trunk reinforcement plate 31. The first docking portion 12 protrudes from the lower edge of the trunk inner panel 11, which is close to the edge of the rear wheel arch. The outer edge of the trunk inner panel 11 serves as a reinforcing connection portion 13 fixedly connected to the trunk reinforcement plate 31. The second docking portion 22 is bent and connected to the lateral edge of the trunk floor 21. After the first and second docking portions 12, 22 are adapted and fixedly connected, the trunk inner panel 11 and the trunk floor 21 enclose each other to form a trunk space.

[0042] Figure 1 In the automobile body shown, the trunk reinforcement plate 31 is welded and fixed to the outer edge of the trunk inner panel 11. The trunk reinforcement plate 31 includes a trunk reinforcement body covering the outer side of the trunk inner panel 11, that is, the trunk reinforcement body covers the side of the trunk inner panel 11 facing away from the trunk space. The trunk reinforcement plate 31 also includes an extended covering portion 32 protruding from the lower edge of the trunk reinforcement body. The lower edge of the trunk reinforcement body matches the lower edge of the trunk inner panel 11. The extended covering portion 32, the first docking portion 12 and the second docking portion 22 are stacked. The extended covering portion 32 is located at the outermost side of the first docking portion 12 and the second docking portion 22. Along the orientation away from the cabin space, the first docking portion 12-the second docking portion 22-the extended covering portion 32 are arranged in sequence, or the second docking portion 22-the first docking portion 12-the extended covering portion 32 are arranged in sequence.

[0043] The automobile body of the present invention adopts an assembly connection process different from that of the prior art. The upper body assembly, which was originally connected to the lower body part 20 as an assembly, is split into the upper body part 10 and the upper reinforcement 30. The upper body part 10, which was originally separated from the upper reinforcement 30, is first riveted to the lower body part 20 separately to form a cabin assembly. The cabin assembly is then assembled as a whole. The upper reinforcement 30 is then welded to the upper body part 10 separately to improve the rigidity and strength of the upper body part 10. That is, the upper body part 10 is riveted to the lower body part 20 separately, and the upper body part 10 is riveted to the lower body part 20 before the upper reinforcement 30 is welded. The connection to the upper body part 10 is completed, which means that the upper body part 10 is not affected or restricted by the upper reinforcement 30 when riveting the lower body part 20. When using riveting equipment to rivet the upper body part 10 and the lower body part 20, the riveting equipment will not be interfered with or obstructed by the upper reinforcement 30. Therefore, the material reduction groove or material reduction avoidance hole opened on the upper reinforcement 30 can be omitted, and there is no need to pass the riveting equipment through the upper reinforcement 30 through the material reduction groove / material reduction avoidance hole according to the existing technology. As a result, the rigidity and strength of the upper reinforcement 30 itself are improved, and ultimately the rigidity and strength of the entire automobile body can be improved, and the automobile body can withstand greater torsional and bending forces.

[0044] The various technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments fall within the scope of protection claimed by the present invention.

Claims

1. An automobile body, characterized in that: The vehicle body comprises an upper body part (10), a lower body part (20) and a vehicle body reinforcement part, wherein the upper body part (10) comprises a first docking portion (12) and a reinforcement connection portion (13), and the lower body part (20) comprises a second docking portion (22), wherein the first docking portion (12) and the second docking portion (22) are adapted and fixedly connected, and the upper body part (10) and the lower body part (20) are surrounded to form a vehicle cabin assembly and a vehicle cabin space, and the vehicle body reinforcement part comprises an upper reinforcement part (30), and the upper reinforcement part (30) is mounted on the reinforcement connection portion (13) on the vehicle cabin assembly.

2. The automobile body according to claim 1, wherein: The first butt joint portion (12) and the second butt joint portion (22) are fixed by riveting.

3. The automobile body according to claim 2, wherein: The first docking portion (12) and the second docking portion (22) are connected via self-piercing rivets.

4. The automobile body according to claim 1, wherein: The reinforcing connection portion (13) is fixed to the upper reinforcing member (30) by welding.

5. The automobile body according to claim 4, wherein: The reinforcing connection portion (13) is fixed to the upper reinforcing member (30) by spot welding.

6. The automobile body according to claim 1, wherein: The upper reinforcement (30) includes an extended covering portion (32), and at least a portion of the first docking portion (12), at least a portion of the second docking portion (22), and at least a portion of the extended covering portion (32) are stacked.

7. The automobile body according to claim 6, wherein: The extended cover portion (32) is fixedly connected to the lower vehicle body member (20); and / or, The first docking portion (12) and the second docking portion (22) are located on a side of the extended covering portion (32) that is relatively close to the vehicle cabin space.

8. The automobile body according to claim 1, wherein: The upper vehicle body (10) includes a trunk inner panel (11), the lower vehicle body (20) includes a trunk bottom panel (21), and the upper reinforcement (30) includes a trunk reinforcement panel (31); The first docking portion (12) is protruding from the lower edge of the trunk inner panel (11), the peripheral edge of the trunk inner panel (11) serves as the reinforcing connection portion (13) and is fixedly connected to the trunk reinforcing plate (31), the second docking portion (22) is bent and connected to the side edge of the trunk bottom panel (21), and the cabin space includes a trunk space formed by the trunk inner panel (11) and the trunk bottom panel (21).

9. The automobile body according to claim 8, wherein: The trunk reinforcement plate (31) is welded and fixed to the periphery of the trunk inner plate (11), and the trunk reinforcement plate (31) covers the side of the trunk inner plate (11) away from the trunk space; and / or, The upper reinforcement (30) further includes an extended covering portion (32) protruding from the lower edge of the tail box reinforcement plate (31); the extended covering portion (32), the first docking portion (12) and the second docking portion (22) are stacked.

10. A vehicle, characterized in that: The invention comprises the automobile body according to any one of claims 1 to 9.

Images