Body structure for motorized vehicles

Abstract

The goal is to reduce the weight of the vehicle body structure while simultaneously meeting the requirements for load-bearing capacity in collision situations. [Solution] A vehicle body structure 10 for a motorized vehicle, including a vehicle body 20 made of metal, wherein the vehicle body structure 10 further includes an exterior part 30 made of synthetic resin, the vehicle body 20 having a first body joint range 22 and a second body joint range 24, and the exterior part 30 having a first joint range 32 and a second joint range 34, the first body joint range 22 being coupled to the first joint range 32 and the second body joint range 24 being coupled to the second joint range 34, such that a hollow chamber contour 40 is formed by the vehicle body 20 and the exterior part 30.

Description

Technical Field

[0001] The present invention relates to a vehicle body structure for a vehicle with a prime mover having the features of the preamble of claim 1.

Background Art

[0002] Basically, a vehicle body structure for a vehicle with a prime mover having a vehicle body main body made of metal is known. The vehicle body main body can be understood as the basic structure or base of the vehicle. Depending on the configuration, the vehicle body main body can also be understood as an independent vehicle body. Usually, the vehicle body main body is made of steel or aluminum and is the support structure of the vehicle. The vehicle body main body is formed so as to satisfy the requirements for load resistance in a collision situation and thus provide protection for the occupants in case of an accident. At the same time, the vehicle body main body is also used as a base for mounting vehicle body parts such as doors, bonnets and fenders.

[0003] The disadvantage of a known vehicle body structure having a vehicle body main body made of steel or aluminum is, firstly, its large weight. A light weight is desirable for improved fuel efficiency or a longer range in an electric vehicle. In particular, lightweight electric vehicles such as, for example, EC vehicle classifications L6e and L7e must not exceed certain dimensional and weight regulations.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Therefore, the problem underlying the present invention is to reduce the weight of the vehicle body structure while at the same time satisfying the requirements for load resistance in a collision situation.

Means for Solving the Problems

[0005] The solution to this problem according to the present invention is achieved by the features of claim 1. Advantageous developments of the present invention are apparent from the dependent claims.

[0006] The present invention relates to a vehicle body structure for a motorized vehicle, which includes a vehicle body made of metal, the vehicle body structure further includes an exterior part made of synthetic resin, the vehicle body having at least one first body joint area and at least one second body joint area, the exterior part having at least one first joint area and at least one second joint area, the first body joint area being coupled to the first joint area and the second body joint area being coupled to the second joint area, such that a hollow chamber contour is formed by the vehicle body and the exterior part.

[0007] Firstly, the weight of the vehicle body structure is reduced because the exterior is formed from synthetic resin. In addition, the required bonding of the exterior to the main body creates a closed contour composite in the form of a hollow chamber contour. Therefore, the exterior contributes to structural rigidity. In this way, less material needs to be used for the main body to meet requirements such as structural rigidity, thereby further reducing the weight of the vehicle body structure. Furthermore, the molding of the exterior area of ​​the motorized vehicle is simplified because the shape of the exterior can be realized more quickly and easily in synthetic resin material.

[0008] Therefore, it is particularly preferable to form and join the main structure of the vehicle body, which does not have an outer skin, especially the vehicle floor, inner side framework, and roof framework, using metal, such as steel or aluminum. Large outer skin parts (exterior parts) that have a significant impact on the total weight are formed using, for example, thermoplastic synthetic resin. In addition to the cost and weight advantages of thermoplastic resins compared to metals such as steel or aluminum, there are also advantages in molding. This is because such synthetic resins are easily moldable, which can be particularly important for the outer skin parts.

[0009] Preferably, the exterior portion is formed as an outer side frame and / or an outer roof. In this vehicle range, it is possible to form a hollow chamber contour particularly well. Similarly, it is conceivable that the hollow chamber contour can accommodate other elements, such as an antenna. In particular, the outer side frame is particularly well suited as such an integrating member.

[0010] In this case, it is conceivable that the first main body connection range, the second main body connection range, the first connection range, and / or the second connection range are formed flat. This achieves a flat connection between the vehicle body and the exterior, thereby improving the connection strength and the structural rigidity of the vehicle body structure.

[0011] In one preferred embodiment, the hollow chamber contour extends in a ring shape along the structure of the vehicle body. This ring-shaped extension improves the second moment of area and, consequently, the structural rigidity of the vehicle body structure.

[0012] Preferably, the structure of the vehicle body is formed by an A-pillar structure, a B-pillar structure, a C-pillar structure, an A-pillar roof arch structure, a B-pillar roof arch structure, a C-pillar roof arch structure, a roof longitudinal arch structure, and / or an outer sill contour structure. In this case, it is conceivable that the hollow chamber contour is formed along such a structure. Alternatively, or in addition to this, it is conceivable that the hollow chamber contour is formed along two or more such structures. In particular, this is conceivable when the hollow chamber contour is formed in a ring shape along the structure of the vehicle body. Therefore, by forming the hollow chamber contour, it is possible to improve the structural rigidity along one or more structures.

[0013] In all embodiments, it is conceivable that a joint connection is used to connect the first body portion to the first joint portion, and the second body portion to the second joint portion, with the joint connection being a clip connection, screw connection, riveting connection, welding connection, or adhesive connection. In particular, separable joint (joining) techniques such as clip connections or screw connections can be carried out particularly easily and quickly, and are therefore inexpensive. Non-separable joint (joining) techniques such as riveting connections, welding connections, or adhesive connections allow for particularly robust joining configurations.

[0014] In another embodiment, it is conceivable that the first or second coupling range of the exterior portion includes a fixing structure, which is formed inside the hollow chamber contour. As a result, the fixing structure is not visible from the outside. Therefore, the exterior portion can be omitted, thereby further reducing the weight. Furthermore, since the structural space inside the hollow chamber contour is used, it is possible to reduce the structural space outside the hollow chamber contour.

[0015] In principle, in all embodiments, it is conceivable that the exterior portion includes multiple synthetic resin parts. These multiple synthetic resin parts can be separable from each other or inseparably bonded to each other. This makes it possible to easily adapt the exterior portion to the shape of the vehicle body. The multiple synthetic resin parts further improve the structural rigidity of the exterior portion.

[0016] In this case, it is conceivable that the first synthetic resin portion, the second synthetic resin portion, and the vehicle body portion are molded in such a way that a double hollow chamber contour is formed. This further improves the structural rigidity of the vehicle body structure.

[0017] In this embodiment, the first synthetic resin portion is formed as a roof structure, and the second synthetic resin portion is formed as a side frame structure, with the side frame structure having a first bonding range and a second bonding range. This makes it possible to particularly improve the structural rigidity in the upper range of the vehicle body structure.

[0018] Preferably, in all embodiments, the vehicle body is formed to be watertight so as to prevent water from entering the internal space of the motorized vehicle from the outside. This makes it possible to configure the joint between the vehicle body and the exterior to be watertight. Preferably, for this purpose, separable joint technology such as clip joints or screw joints can be selected, which makes it possible to manufacture the vehicle body structure particularly easily and quickly and therefore inexpensively.

[0019] In all embodiments, it is conceivable that the vehicle body comprises a plurality of first body joint ranges and a plurality of second body joint ranges, each separated from the other, and the exterior comprises a plurality of first joint ranges and a plurality of second joint ranges, each separated from the other, and the first and second body joint ranges are coupled to the first and second joint ranges, respectively, so that a hollow chamber contour is formed by the vehicle body and the exterior. This makes it possible, firstly, to form the hollow chamber contour particularly easily in individual structures or through multiple structures of the vehicle body. Furthermore, it reduces material costs or joining effort compared to continuous body joint ranges or joint ranges. Furthermore, it is possible to easily connect the exterior to each structural shape of the vehicle body.

[0020] Furthermore, a motorized vehicle including the aforementioned body structure is provided.

[0021] In all embodiments, it is also possible to assume that the length of the motorized vehicle in the X direction is 3m or less. This makes it possible to provide a particularly compact motorized vehicle.

[0022] In a particularly preferred embodiment, the motor vehicle is formed as a lightweight electric vehicle. Since lightweight electric vehicles are subject to dimensional and weight regulations, the above-described advantageous effects of the present invention are particularly useful for meeting the dimensional and acceptance regulations. In particular, the motor vehicle can be formed as a lightweight electric vehicle of EC vehicle classification L6e or L7e according to EU Regulation 168 / 2013. It is also conceivable that the vehicle weight of the lightweight electric vehicle excluding the drive battery can be up to 450 kg. Similarly, it is also conceivable that the overall length of the lightweight electric vehicle in the X direction is limited to 3 m.

[0023] Very generally, the reduced structural space is also advantageous for all vehicle types. This is because the structural space leads to a desirable reduction in the traffic footprint in urban traffic.

[0024] Embodiments of the present invention will be described below based on the drawings.

Brief Description of the Drawings

[0025] [Figure 1] It is a schematic cross-sectional view of an embodiment of the vehicle body structure according to the present invention. [Figure 2] It is a schematic perspective view of an embodiment of the vehicle body structure according to the present invention. [Figure 3] It is a schematic cross-sectional view of an embodiment of the vehicle body structure according to the present invention from the roof area to the outer sill contour structure. [Figure 4] It is a detailed view of the outer sill contour structure based on FIG. 3.

Modes for Carrying Out the Invention

[0026] FIG. 1 shows a schematic cross-sectional view of an embodiment of a vehicle body structure 10 according to the present invention, and the vehicle body structure includes a vehicle body main body portion 20 made of metal and an exterior portion 30 made of synthetic resin.

[0027] In this case, the vehicle body portion 20 includes at least one first body portion connecting range 22 and at least one second body portion connecting range 24. Preferably, the vehicle body portion 20 is made of steel or aluminum.

[0028] Similar to the main body portion 20, the exterior portion 30 includes at least one first bonding area 32 and at least one second bonding area 34. Preferably, the exterior portion is made of thermoplastic resin.

[0029] At this time, the first main body coupling range 22 is coupled to the first coupling range 32 and the second main body coupling range 24 is coupled to the second coupling range 34, so that the hollow chamber contour 40 is formed by the vehicle body main body 20 and the exterior 30.

[0030] In the hollow chamber contour 40, the main body 20 and the exterior 30 face each other and form a hollow space. These are connected to each other via ranges 22, 24, 32, and 34. Here, the hollow chamber contour 40 may preferably extend along one or more structures of the main body 20. In this way, the contour structure is formed in the form of a closed contour composite. Generally, the contour can be understood as an elongated hollow structural element having a predetermined shape and cross-sectional geometry. In this way, the structural rigidity of the vehicle body structure 10 is simultaneously improved by the main body 20 and the exterior 30. Therefore, for example, less material can be used for the main body 20 to meet the requirements for structural rigidity, thereby further reducing the weight of the vehicle body structure 10.

[0031] In Figure 1, it can be seen that ranges 22, 24, 32, and 34 are located outside the hollow chamber contour 40. Alternatively, or in addition to this, it is also conceivable that ranges 22, 24, 32, and 34 are located inside the hollow chamber contour 40.

[0032] In this case, it is conceivable that ranges 22, 24, 32 and / or 34 are formed flat, as shown in the cross-sectional view of Figure 1. Alternatively, or in addition to this, it is conceivable that ranges 22, 24, 32 and / or 34 are formed only linearly, for example, in the form of adhesive joints or welded joints.

[0033] Generally, ranges 22, 24, 32, and 34 can be joined using joint connections, which may include clip connections, screw connections, riveted connections, welded connections, or adhesive connections.

[0034] The structure of the vehicle body portion 20, along which the hollow chamber contour portion 40 extends, can preferably be formed by an A-pillar structure 50, a B-pillar structure 52, a C-pillar structure 54, an A-pillar roof arch structure 60, a B-pillar roof arch structure 62, a C-pillar roof arch structure 64, a roof longitudinal arch structure 70, and / or an outer (side) sill contour portion structure 80, which can be seen in Figure 2.

[0035] Here, Figure 2 shows the vehicle body 20 with the exterior part 30 covering it in a hood-like manner. Preferably, the ranges 22, 24, 32, 34 are arranged along the A-pillar structure 50, B-pillar structure 52, C-pillar structure 54, A-pillar roof arch structure 60, B-pillar roof arch structure 62, C-pillar roof arch structure 64, roof longitudinal arch structure 70 and / or outer sill contour structure 80.

[0036] Preferably, the exterior portion 30 forms an outer left or right side frame 38.1 and / or an outer roof 38.2. Particularly preferably, the exterior portion 30 can be formed of three members, in which case the outer roof 38.2 includes a left outer side frame 38.1 and a right outer side frame 38.1.

[0037] Generally, colored pigments can be introduced particularly easily and permanently into the synthetic resin material of the exterior 30, especially the roof 38.2, thereby improving the stability of the color with respect to ambient (environmental) influences such as sunlight. Furthermore, in this way, it is possible to provide inexpensive and individual, specific coloring during the manufacture of motorized vehicles.

[0038] In this case, it is generally conceivable that ranges 22, 24, 32, and 34 are arranged along the individual structures of the main body 20. Alternatively, or in addition to this, it is also conceivable that ranges 22 and 32 are arranged along a first structure in the vehicle range, and ranges 24 and 34 are arranged along a second structure in the other vehicle range: for example, ranges 22 and 32 are arranged along the left-side roof longitudinal arch structure 70.1, and ranges 24 and 34 are arranged along the right-side roof longitudinal arch structure 70.2. In this case, the flat roof elements of the main body 20, together with the flat roof elements of the exterior 30, form the hollow chamber contour 40 described above. Similarly, for example, ranges 22 and 32 are arranged along the front A-pillar roof arch structure 60, and ranges 24 and 34 are arranged along the central B-pillar roof arch structure 62 and / or C-pillar roof arch structure 64. In this case, the flat roof element of the main body portion 20, together with the flat roof element of the exterior portion 30, forms the hollow chamber contour portion 40 described above. This configuration example is merely illustrative and refers only to the various configuration possibilities at all parts of the vehicle body structure 10 with respect to the arrangement of ranges 22, 24, 32, and 34.

[0039] Furthermore, particularly preferably, the hollow chamber contour 40 extends in a ring shape along the structure of the vehicle body 20. For example, the hollow chamber contour 40 can extend in a ring shape along the vehicle door 12, for example, along the A-pillar structure 50, the roof longitudinal arch structure 70, the B-pillar structure 52, and the outer sill contour structure 80. Similarly, it is conceivable that the hollow chamber contour 40 extends in a ring shape along the roof or other areas of the vehicle body structure 10. Here, “ring-shaped” should be understood not only as a circular shape, but generally as being enclosed in any shape.

[0040] Referring to Figure 3, it is also conceivable that the exterior portion 30 includes multiple synthetic resin portions. In this case, preferably, the first synthetic resin portion 30.1, the second synthetic resin portion 30.2 and the vehicle body portion 20 are molded so that double hollow chamber contour portions 40.1 and 40.2 are formed, thereby improving rigidity while reducing structural space. As can be seen in Figure 3, for example, the first synthetic resin portion 30.1 is formed as a roof structure and the second synthetic resin portion 30.2 is formed as a side frame structure within the range of the roof longitudinal arch structure 70, and the side frame structure or the second synthetic resin portion 30.2 has a first bonding range 32 and a second bonding range 34. In this case, preferably, the second synthetic resin portion 30.2 is formed in a wavy shape. As can be seen in Figure 3, preferably, the second synthetic resin portion 30.2 has bonding ranges 30.2.a and 30.2.b, which are bonded to the corresponding bonding ranges 30.1.a and 30.1.b of the first synthetic resin portion 30.1, respectively. In this case, it is basically possible to use the joint technology described above. In this case, it is particularly preferable that the inner side frame 20.1 of the vehicle body portion 20 be formed to be watertight in order to seal the internal space, as will be described later. For example, the vehicle body portion 20 does not have holes in this case.

[0041] In Figure 3, another hollow chamber contour 40 can also be seen within the range of the outer sill contour structure 80, which is shown in detail in Figure 4: here, preferably, the second coupling range 34 comprises a fixing structure 36, and the fixing structure 36 and coupling range 34 are formed inside the hollow chamber contour 40. In this case, the fixing structure 36 is preferably made of synthetic resin and can be sprayed onto the exterior 30 in this range inside, for example. Preferably, the fixing structure may include threads for screw coupling (e.g., a circlip nut) as illustrated in Figure 4.

[0042] In all embodiments, it is conceivable that the vehicle body 20 is formed to be watertight so as to prevent water from entering the internal space of the motorized vehicle from the outside. Therefore, basically, the vehicle body 20 can be formed as a structure that is sealed inward. In this case, it is conceivable that the vehicle body 20 is formed to be watertight in the body coupling ranges 22, 24 in order to intentionally prevent water from entering in the area of ​​coupling with the exterior 30. Therefore, preferably, other areas of the vehicle body 20 outside the coupling range of the exterior 30 can be formed to allow water to pass through, for example, by perforated elements to further reduce weight. Therefore, in coupling the vehicle body 20 with the exterior 30, clip couplings or screw couplings can be used as described above. Optionally, seal elements 16 shown exemplary in Figures 3 and 4 can also be provided. In this case, the seal elements 16 can be positioned in the coupling ranges 22, 32 or 24, 34. Preferably, the seal elements 16 can be formed as door seals or additional acoustic (sound-dampening) seals. Finally, Figure 3 can also be seen that water can flow from above to the side in the direction of the arrow. In this case, the vehicle door 12 may be provided with a known water passage having an edge protection seal at the door joint.

[0043] Furthermore, in all embodiments, it is conceivable that the vehicle body portion 20 comprises a plurality of first body portion connecting ranges 22 and a plurality of second body portion connecting ranges 24, which are separated from each other, and the exterior portion 30 comprises a plurality of first connecting ranges 32 and a plurality of second connecting ranges 34, which are separated from each other, and the first body portion connecting ranges 22 and the second body portion connecting ranges 24 are connected to the first connecting ranges 32 and the second connecting ranges 34, respectively, so that the hollow chamber contour portion 40 is formed by the vehicle body portion 20 and the exterior portion 30. In this case, it is conceivable that in areas where ranges 22, 24, 32, and 34 are not formed, the vehicle body portion 20 and the exterior portion 30 are either adjacent to each other or separated from each other, and thereby the hollow chamber contour portion 40 in the sense of the present invention is also formed. In this way, it is possible to form a particularly good ring-shaped contour of the hollow chamber portion 40 along the structure 50, 52, 54, 60, 62, 64, 70 and / or 80 of the vehicle body portion 20. At this time, it is conceivable that the joint node 14 does not have ranges 22, 24, 32, 34.

[0044] This is illustrated in Figure 2 in the lower vehicle range of the sill contour structure 80 and the lower range of the A-pillar structure 50; therefore, for example, multiple ranges 22, 32 in the sill contour structure 80 and multiple ranges 24, 34 in the A-pillar structure 50 are possible. Alternatively, or supplementing this, multiple ranges 24, 34 in the sill contour structure 80 and multiple ranges 22, 32 in the A-pillar structure 50 are also possible. This example configuration is merely illustrative and refers only to the various configuration possibilities at all locations of the vehicle body structure 10 with respect to the multiple ranges 22, 24, 32, 34. In Figure 2, it can also be seen that ranges 22, 24, 32, 34 may be located outside the connecting node 14.

[0045] However, alternatively or in addition to this, it is also conceivable that ranges 20, 24, 32, and 34 extend continuously along the structure of the main body 20 of the vehicle. Therefore, these ranges can also be located within the connecting node 14. As described above, for example, ranges 20, 24, 32, and 34 can extend continuously and in a ring shape along the vehicle door 12, for example, along the A-pillar structure 50, the roof longitudinal arch structure 70, the B-pillar structure 52, and the external sill contour structure 80. This also applies to similar structures of the main body 20 of the vehicle, such as the window structure or roof structure in Figure 2.

[0046] Basically, an embodiment in which the exterior portion 30 is formed only on the outer roof structure 38.2 is also conceivable. In this case, the exterior portion 30.1 may include a first synthetic resin portion 30.1 and a second synthetic resin portion 30.2, as shown in Figure 3. Alternatively, or in addition thereto, it is also conceivable that the exterior portion 30.1 includes only a first synthetic resin portion 30.1 having a first bonding range 32 and a second bonding range 34 or a plurality of ranges 32, 34.

[0047] Similarly, it is also conceivable that the hollow chamber contour 40 is formed only along individual structures 50, 52, 54, 60, 62, 64, 70 and / or 80 or other structures of the vehicle body 20. This makes it possible to intentionally form the ranges 22, 24, 32, 34 only in critical areas in order to reduce (reduce) material, weight, or installation effort.

[0048] Similarly, in order to facilitate the attachment of the exterior parts 30 to the vehicle body 20, it is conceivable that a hollow chamber contour portion 40 may not be formed in certain structures of the vehicle body 20, such as the front windshield cowl or tailgate closing portion.

[0049] The above-described embodiment of the vehicle body structure 10 is conceivable for all types of motorized vehicles. Particularly preferably, the motorized vehicle 10 is formed as a lightweight electric vehicle. In this case, preferably, the vehicle weight of the lightweight electric vehicle, excluding the energy storage unit / battery, is 450 kg or less. Similarly, it is conceivable that the overall length of the lightweight electric vehicle in the X direction is limited to 3 m.

[0050] In the compact size of such lightweight electric vehicles, an exterior part 30 made of synthetic resin is particularly advantageous. This allows for centering, for example, via a door flange fixed with bolts, which can then be covered, for example, by a door edge protective seal. Tolerances can preferably be corrected forward and backward toward functionally less important separation points. In particular, thermoplastic synthetic resins, due to their elasticity, allow for at least partial overlap determination (forced centering). [Explanation of symbols]

[0051] 10. Body structure 12 vehicle doors 14 Connection node 16 Seal elements 20 Main body of the vehicle 20.1 Inner side frame 22 First main body connection range 24 Second main body connection range 30 Exterior part 30.1 First synthetic resin portion 30.2 Second synthetic resin part 32 First joining range 34 Second joining range 36 Fixed structure 38.1 Outer side frame 38.2 Outer roof 40 Hollow chamber contour 50 A-pillar structure 52 B-pillar structure 54 C-pillar structure 60 A-pillar roof arch structure 62 B-pillar roof arch structure 64 C-pillar roof arch structure 70 Roof Longitudinal Arch Structure 80 Outer sill contour structure 90 Front glass cowl 92 Tailgate closing section

Claims

1. In a vehicle body structure (10) for a motorized vehicle, including a main body section (20) made of metal, The vehicle body structure (10) further includes an exterior part (30) made of synthetic resin, wherein the main body part (20) comprises at least one first main body coupling area (22) and at least one second main body coupling area (24), and the exterior part (30) comprises at least one first coupling area (32) and at least one second coupling area (34), wherein the first main body coupling area (22) is coupled to the first coupling area (32) and the second main body coupling area (24) is coupled to the second coupling area (34) such that the main body part (20) and the exterior part (30) form a hollow chamber contour (40).

2. The vehicle body structure (10) according to claim 1, characterized in that the exterior portion (30) is formed as an outer side frame (38.1) and / or as an outer roof (38.2).

3. The vehicle body structure (10) according to claim 1 or 2, characterized in that the hollow chamber contour portion (40) extends in a ring shape along the structure of the vehicle body main portion (20).

4. The vehicle body structure (10) according to claim 3, characterized in that the structure of the vehicle body main body (20) is formed by an A-pillar structure (50), a B-pillar structure (52), a C-pillar structure (54), an A-pillar roof arch structure (60), a B-pillar roof arch structure (62), a C-pillar roof arch structure (64), a roof longitudinal arch structure (70), and / or an outer sill contour structure (80).

5. The vehicle body structure (10) according to any one of claims 1 to 4, characterized in that the first main body coupling range (22) is coupled to the first coupling range (32) and the second main body coupling range (24) is coupled to the second coupling range (34) using a joint coupling, and the joint coupling is set to be a clip coupling, a screw coupling, a rivet coupling, a welded coupling or an adhesive coupling.

6. The vehicle body structure (10) according to any one of claims 1 to 5, characterized in that the first coupling range (32) or the second coupling range (34) of the exterior portion (30) is provided with a fixing structure (36), and the fixing structure (36) is formed inside the hollow chamber contour portion (40).

7. The vehicle body structure (10) according to any one of claims 1 to 6, characterized in that the exterior part (30) includes a plurality of synthetic resin parts.

8. The vehicle body structure (10) according to claim 7, characterized in that the first synthetic resin portion (30.1), the second synthetic resin portion (30.2), and the vehicle body main portion (20) are molded so as to form a double hollow chamber contour (40.1, 40.2).

9. The vehicle body structure (10) according to claim 7 or 8, characterized in that the first synthetic resin portion (30.1) is formed as a roof structure, the second synthetic resin (30.2) is formed as a side frame structure, and the side frame structure includes the first bonding range (32) and the second bonding range (34).

10. The vehicle body structure (10) according to any one of claims 1 to 9, characterized in that the vehicle body portion (20) is formed to be watertight so as to prevent water from entering the internal space of the motor vehicle from the outside.

11. The vehicle body structure (10) according to any one of claims 1 to 10, characterized in that the vehicle body main portion (20) comprises a plurality of first main portion coupling areas (22) and a plurality of second main portion coupling areas (24) that are separated from each other, the exterior portion (30) comprises a plurality of first coupling areas (32) and a plurality of second coupling areas (34) that are separated from each other, and the first main portion coupling areas (22) and the second main portion coupling areas (24) are coupled to the first coupling areas (32) and the second coupling areas (34), respectively, so that the hollow chamber contour portion (40) is formed by the vehicle body main portion (20) and the exterior portion (30).

12. A motorized vehicle comprising a vehicle body structure (10) according to any one of claims 1 to 11.

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