Body joint structure

Abstract

The present application discloses a vehicle body joint structure, comprising a lower panel disposed on a side surface of a floor assembly, an upper panel extending upward from the lower panel and connected to a roof assembly for a vehicle body roof, and a connecting pipe extending vertically to connect the floor assembly to the roof assembly, the connecting pipe being disposed to face the upper panel and coupled to the upper panel.

Description

Technical Field

[0001] The present disclosure relates to a vehicle body joint structure. Background Art

[0002] The pillars of a vehicle are divided into front pillars, center pillars and rear pillars according to the position of the pillars, and play an important role not only in supporting the roof of the vehicle but also in improving the rigidity and safety of the vehicle body.

[0003] In the type designed as a monocoque, a conventional pillar has a structure in which a plurality of mold parts are combined and has excellent rigidity, but it is almost impossible to be applied to vehicles of various designs or to share each section as a design part.

[0004] Alternatively, in the existing load-bearing structure, all front pillars can be designed as a drawing mold with an inner member and an outer member. However, the existing load-bearing structure with scalability is almost impossible to contact with other parts, and a new mold should be developed for each design.

[0005] That is, in small-batch production or production through a smart factory, a large number of design changes are required, and thus there is a problem in that the production cost inevitably increases due to the significant increase in the number of molds.

[0006] Therefore, there is a need for a vehicle body having a new structure or a pillar structure capable of ensuring rigidity and expandability for connection with other parts while overcoming the disadvantages.

[0007] The above is only intended to help understanding the background of the present disclosure and is not intended to make the present disclosure fall within the scope of the relevant art known to those skilled in the art. Summary of the invention

[0008] Therefore, the present disclosure has been made in consideration of the problems occurring in the prior art, and the present disclosure is directed to a vehicle body joint structure. An embodiment of the present disclosure provides a vehicle body joint structure capable of ensuring expandability for connection with other parts by changing the structure of a rear pillar.

[0009] According to one embodiment, a vehicle body joint structure is provided, including a lower panel disposed on a side surface of a floor assembly; an upper panel configured to extend upward from the lower panel and connected to a roof assembly constituting a roof of the vehicle body; and a connecting pipe configured to extend vertically to connect the floor assembly to the roof assembly and disposed to face the upper panel to be coupled thereto.

[0010] The floor assembly may include a floor having side beams on both sides and a wheel mounting portion disposed rearward from the side beams of the floor and to which the wheels are mounted, and the lower panel may be coupled to the wheel mounting portion.

[0011] The wheel mounting portion may include a rear side member configured to extend rearward from the side beam, a panel portion coupled to an upper side portion of the rear side member and formed to have a certain area, a horizontal member portion coupled to an upper end portion of the panel portion and extending in the same direction as the rear side member, and a vertical member portion configured to vertically extend to cross the panel portion and connect the rear side member to the horizontal member portion.

[0012] The lower panel may be formed in a shape in which an upper end portion of the lower panel is coupled to the upper panel, and a lower end portion of the lower panel surrounds a wheel to be mounted to the wheel mounting portion.

[0013] A support member configured to surround a lower portion of the connection pipe may be formed in an upper end portion of the lower panel.

[0014] The edge from the upper end portion to the lower end portion of the lower panel may mate with the edge of the wheel mounting portion to be coupled thereto.

[0015] The connection pipe may be formed in a polygonal shape having a closed cross-section, and an extended end portion configured to extend to an outer surface of the connection pipe to cover the connection pipe may be formed on the upper panel.

[0016] The facing surfaces of the upper panels may cooperate with the connection pipes to be coupled to each other.

[0017] The vehicle body joining structure may further include a bracket including one end portion coupled to the upper panel and another end portion coupled to the connection pipe, thereby connecting the upper panel to the connection pipe.

[0018] The connection pipe may be provided as a plurality of connection pipes, and the plurality of connection pipes may be provided in a direction facing the upper panel.

[0019] The vehicle body joint structure may further include a side outer member formed to surround the lower panel, the upper panel, and the connection pipe and coupled to the lower panel, the upper panel, and the connection pipe while surrounding the lower panel, the upper panel, and the connection pipe from the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and other advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 is a schematic diagram showing a vehicle body joining structure according to an embodiment of the present disclosure; and

[0022] Figures 2 to 8 Is used to describe Figure 1 Schematic diagram of the rear pillar structure of the vehicle body joint structure shown in FIG. DETAILED DESCRIPTION

[0023] Hereinafter, a vehicle body joining structure according to an exemplary embodiment of the present disclosure will be described with reference to the accompanying drawings.

[0024] Figure 1 is a schematic diagram showing a vehicle body joining structure according to an embodiment of the present disclosure; and Figures 2 to 8 Is used to describe Figure 1 Schematic diagram of the rear pillar structure of the vehicle body joint structure shown in FIG.

[0025] The present disclosure relates to a modular vehicle body. Figure 1 As shown, when constructing a modular vehicle body, the front fender assembly 11, the instrument panel assembly 12, the center floor assembly 13, and the rear floor assembly 14 constitute a floor assembly 10, and the front lower panel 21, the rear side assembly 23, the back assembly 22, and the roof assembly 24 constitute an upper assembly 20. In a state where the floor assembly 10 and the upper assembly 20 are assembled, when a skin assembly 30 including a fender 31, a side outer member 32, and a roof panel 33 can be coupled to the floor assembly 10 and the upper assembly 20, a modular vehicle body can be formed.

[0026] The above-mentioned modular vehicle body is an example, and this example is only used to help understand the modular vehicle body. When the vehicle body is actually formed, the assembly order and the configuration of each may be changed.

[0027] The embodiment of the present disclosure relates to a connection structure between a rear side assembly 23 and a roof assembly 24 (constituting an upper assembly). Figure 2 As shown, the embodiment of the present disclosure includes a lower panel 100, which is disposed on a side surface of a floor assembly 300; an upper panel 400, which extends upward from the lower panel 100 and is connected to a roof assembly 200 constituting a roof of a vehicle body; and a connecting pipe 500, which vertically extends to connect the floor assembly 300 to the roof assembly 200, and is disposed to face the upper panel 400 and is coupled to the upper panel 400. The lower panel 100 and the upper panel 400 correspond to the rear side assembly 23 in the aforementioned upper assembly 20.

[0028] Here, the floor assembly 300 includes a floor 310, constituting the bottom surface of the vehicle body, and the lower panel 100 is coupled to the side of the floor assembly 300. Specifically, the upper panel 400 is coupled above the lower panel 100 and extends upward from the lower panel 100 to be connected to the roof assembly 200. The upper panel 400 may be a C-shaped pillar, which is a rear pillar and formed as a C-shaped frame having a vertical surface extending vertically and side surfaces bent at both sides of the vertical surface. Therefore, the upper panel 400 may be extended or retracted in the length direction, making it easy to apply to vehicles of varying types and models.

[0029] The connecting pipe 500 extends vertically to connect the floor assembly 300 to the roof assembly 200, and is disposed to face the upper panel 400 to be coupled thereto. The connecting pipe 500 may have the same shape as the upper panel 400, or may be formed to have a polygonal shape. Further, the facing surface of the upper panel 400 cooperates with the connecting pipe 500 to be coupled to each other, thereby ensuring fixed support rigidity of the upper panel 400 and the connecting pipe 500. Therefore, the connecting pipe 500 may be extended or retracted in the length direction, making it easy to apply to vehicles of varying types and models.

[0030] As described above, due to the configuration for supporting the roof assembly 200 relative to the floor assembly 300, the upper portion of the upper panel 400 is coupled to the roof assembly 200, and the lower portion of the upper panel is coupled to the lower panel 100 coupled to the floor assembly 300, the upper portion of the connecting pipe 500 is coupled to the roof assembly 200, and the lower portion of the connecting pipe is coupled to the floor assembly 300, so that the supporting rigidity and stiffness of the roof assembly 200 are ensured due to the upper panel 400 and the connecting pipe 500. Further, the lengths of the upper panel 400 and the connecting pipe 500 are varied, making it easy to apply to vehicles of varying types and models.

[0031] When describing the embodiments of the present disclosure in detail, Figure 3 As shown, the floor assembly 300 may include a floor 310 having side beams 311 on both sides thereof, and a wheel mounting portion 320 extending rearward from the side beams 311 of the floor 310 , and the lower panel 100 may be coupled to the wheel mounting portion 320 .

[0032] As described above, the floor assembly 300 includes a floor 310 having side beams 311 on both sides thereof, and a wheel mounting portion 320 extending rearward from the floor 310. Here, in addition to the side beams 311, the floor 310 may include a cross member, etc., but it is not shown. The rear wheel mounting portion 320 is formed behind the side beams 311 of the floor 310. The wheel mounting portion 320 is formed to have a predetermined area so that a wheel can be mounted, and the rib portion 321 may be formed to strengthen the rigidity at the portion where the wheel is mounted. As described above, the floor 310 and the wheel mounting portion 320 may be integrally formed and manufactured, and since the floor 310 and the wheel mounting portion 320 are integrally formed, strength and rigidity are ensured.

[0033] The wheel mounting portion 320 may include a rear side member 325 extending rearward from the side beam 311, a panel portion 322 coupled to the rear side member 325 and formed to have an area, a horizontal member portion 323 coupled to an upper portion of the panel portion 322 and extending in the same direction as the rear side member 325, and a vertical member portion 324 extending to vertically span the panel portion 322 and configured to connect the rear side member 325 to the horizontal member portion 323.

[0034] like Figure 4 As shown, the wheel mounting portion 320 includes a rear side member 325, a panel portion 322, a horizontal member portion 323, and a vertical member portion 324. Here, the rear side member 325 may be coupled to the rear side portion of the side beam 311 and formed to have a closed cross section. The panel portion 322 is formed to have an area and partition the interior space and the exterior space of the vehicle, and the wheel is mounted to the panel portion 322. The horizontal member portion 323 is formed at the upper end portion of the panel portion 322. The horizontal member portion 323 extends in the extension direction of the rear side member 325 while forming a closed cross section.

[0035] Further, since the horizontal member portion 323 forms a closed cross section, the strength of the horizontal member portion 323 is ensured, and when the connection pipe 500 is coupled upward, the horizontal member portion 323 together with the connection pipe 500 can support the roof assembly 200 .

[0036] Further, since the horizontal member portion 323 and the rear side member 325 are connected by the vertical member portion 324 extending vertically to cross the panel portion 322, the support rigidity against the vertical load is increased. Therefore, the wheel mounting portion 320 ensures the support rigidity in the vertical direction to fixedly support the roof assembly 200, and since the strength of the wheel mounting portion 320 is ensured, the stability against shock is improved.

[0037] Meanwhile, an upper end portion of the lower panel 100 may be coupled to the upper panel 400 , and a lower end portion of the lower panel may be formed in a shape surrounding a wheel to be mounted to the wheel mounting portion 320 .

[0038] The upper panel 400 is coupled to the upper end portion of the lower panel 100 by welding or riveting, and the lower end portion of the lower panel 100 may be cut into a circular shape in consideration of the geometry of the wheel to be mounted to the wheel mounting portion 320. Further, since the lower panel 100 is configured as a separate compartment and coupled to the side of the base plate assembly 300, design freedom is ensured.

[0039] A supporter 110 for surrounding a lower portion of the connection pipe 500 may be formed on an upper end portion of the above-mentioned lower panel 100 , and the lower portion of the connection pipe 500 may be coupled to the supporter 110 .

[0040] like Figure 5 As shown, since the lower portion of the connection pipe 500 is surrounded by the support member 110 located at the upper end portion of the lower panel 100, a structure is formed in which the connection pipe 500 is supported by the support member 110 so that a rigid coupling structure can be formed. Here, since the support member 110 of the lower panel 100 is coupled to the connection pipe 500 in a state of surrounding the lower portion of the connection pipe 500, the coupling rigidity of the lower panel 100 is ensured, and the supporting strength of the connection pipe 500 is increased.

[0041] Further, since the support piece 110 of the lower panel 100 is fitted to the connection pipe 500, a fixed position is determined when the lower panel 100 is coupled to the base plate assembly 300, making manufacturing easier.

[0042] The edge from the upper end portion to the lower end portion of the lower panel 100 may be matched with the edge of the wheel mounting portion 320 to be coupled to the wheel mounting portion 320. That is, the lower panel 100 may be formed in a shape corresponding to the outer edge of the wheel mounting portion 320, and the edge of the lower panel 100 may be coupled and fixed to the edge of the wheel mounting portion 320 by welding or riveting. Here, the upper end portion of the lower panel 100 may include the upper panel 400 and the connection pipe 500, and may be coupled to the upper portion of the wheel mounting portion 320. One end portion of the lower panel 100 may be coupled to the front lower portion of the wheel mounting portion 320, and its end portion may be coupled to the rear end portion of the wheel mounting portion 320 in its upper portion. As described above, some points of the lower panel 100 are coupled to the wheel mounting portion 320, thereby preventing the deterioration of durability due to the excessive increase of the coupling portion, and avoiding the inclined or bent portion to ensure easy coupling work.

[0043] At the same time, if Figure 6 As shown, the connection pipe 500 may be formed in a polygonal shape having a closed cross-section, and an extended end portion 410 extending to the outer surface of the connection pipe 500 to cover the connection pipe 500 may be formed on the upper panel 400 .

[0044] As described above, since the connection pipe 500 is formed in a polygonal shape with a closed cross section, the rigidity of the connection pipe 500 is ensured. Alternatively, the connection pipe 500 may be formed in a "C" shape in which some surfaces are opened like the upper panel 400. However, since the connection pipe 500 should ensure the strength of the rod connected to the floor assembly 300 and the roof assembly 200, it is preferred that the connection pipe 500 is formed in a polygonal shape with a closed cross section.

[0045] Further, an extended end portion 410 extending to the outer surface of the connection pipe 500 is formed on the upper panel 400 and covers the connection pipe 500, thereby improving the coupling rigidity between the upper panel 400 and the connection pipe 500. Further, a structure is formed in which the connection pipe 500 is supported by the extended end portion 410 of the upper panel 400, so that solid support strength can be formed.

[0046] At the same time, if Figure 5 As shown, the bracket 430 may be provided so that one end portion of the bracket 430 is coupled to the upper panel 400, and the other end portion of the bracket is coupled to the connection pipe 500, thereby connecting the upper panel 400 to the connection pipe 500. The bracket 430 may be positioned at a middle portion of the upper panel 400 and the connection pipe 500. Since the bracket 430 connects the upper panel 400 to the connection pipe 500, the coupling rigidity between the upper panel 400 and the connection pipe 500 is ensured. Further, since the bracket 430 can be coupled to other parts in a state of being coupled to the upper panel 400 and the connection pipe 500, the coupling rigidity can be ensured when the outer member is coupled to the other parts.

[0047] Meanwhile, the connection pipe 500 may be provided as a plurality of connection pipes 500 , and the plurality of connection pipes are provided to face the direction of the upper panel 400 .

[0048] This is another example of the connection structure between the upper panel 400 and the connection pipe 500. Figure 7 As shown, the connection pipe 500 may be provided as a plurality of connection pipes 500 and coupled to the upper panel 400 in a state of being arranged in a direction facing the upper panel 400. Therefore, the degree of freedom of coupling between the upper panel 400 and the connection pipe 500 is improved, and additional rigidity can be easily ensured according to the number of connection pipes 500.

[0049] At the same time, if Figure 8 As shown, the side outer member 32 may be formed to surround the lower panel 100, the upper panel 400, and the connection pipe 500, and coupled to the lower panel 100, the upper panel 400, and the connection pipe 500 while surrounding the lower panel 100, the upper panel 400, and the connection pipe 500 from the outside. As described above, the lower panel 100 in a state of being coupled to the floor assembly 300 is coupled to the roof assembly 200 through the upper panel 400, and in a state where the connection pipe 500 is coupled to the floor assembly 300 and the roof assembly 200, the side outer member 32 is coupled to the lower panel 100, the upper panel 400, and the connection pipe 500 while surrounding the lower panel 100, the upper panel 400, and the connection pipe 500, so that a coupling structure with increased strength and rigidity can be formed. Further, the external shape of the vehicle is determined according to the design of the side outer member 32, so that the design can be easily changed.

[0050] The vehicle body joint structure formed in the above structure can be easily and universally used for various types of vehicles by simply constructing a pillar structure required for the vehicle while not requiring or minimizing the development of a separate new mold. Therefore, it is easy to develop a new type of vehicle and effective even in small-volume production. Further, the rigidity and assemblability of the roof are ensured.

[0051] Although preferred embodiments of the present disclosure have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the disclosure as disclosed in the accompanying claims.

Claims

1. A vehicle body joint structure, comprising: a floor assembly, the floor assembly comprising a floor, side beams on both sides of the floor, and a wheel mounting portion disposed rearwardly from the side beams of the floor; a lower panel disposed on a side surface of the base plate assembly and coupled to the wheel mounting portion; an upper panel extending upwardly from the lower panel and connected to a roof assembly for a roof of the vehicle body; a connecting pipe extending vertically to connect the floor assembly to the roof assembly, the connecting pipe being arranged to face the upper panel and coupled to the upper panel; as well as a wheel, mounted to the wheel mounting portion, Wherein, the wheel mounting part comprises: a rear side member configured to extend rearwardly from the side beam; a panel portion coupled to an upper side portion of the rear side member and having an area; a horizontal member portion coupled to an upper end portion of the panel portion and extending in the same direction as the rear side member; and A vertical member portion vertically extends to span across the panel portion and connects the rear side member to the horizontal member portion.

2. The vehicle body joint structure according to claim 1, wherein: The lower panel is formed in such a shape that an upper end portion of the lower panel is coupled to the upper panel and a lower end portion of the lower panel surrounds the wheel mounted to the wheel mounting portion. 3 . The vehicle body joint structure according to claim 1 , further comprising a support member formed in an upper end portion of the lower panel, the support member surrounding a lower portion of the connecting pipe.

4. The vehicle body joint structure according to claim 1, wherein: An edge extending from an upper end portion to a lower end portion of the lower panel mates with an edge of the wheel mounting portion, wherein the edge of the lower panel is coupled to the edge of the wheel mounting portion.

5. The vehicle body joint structure according to claim 1, wherein: The connection pipe has a polygonal shape having a closed cross-section, and an extended end portion extending to an outer surface of the connection pipe to cover the connection pipe is formed on the upper panel.

6. The vehicle body joint structure according to claim 1, wherein: The facing surface of the upper panel cooperates with the connection pipe to be coupled to each other. 7 . The vehicle body joint structure according to claim 1 , further comprising a bracket including a first end portion coupled to the upper panel and a second end portion coupled to the connection pipe, thereby connecting the upper panel to the connection pipe.

8. The vehicle body joint structure according to claim 1, wherein: The connection pipe includes a plurality of connection pipes, and each of the plurality of connection pipes is disposed in a direction facing the upper panel.

9. The vehicle body joint structure according to claim 1, further comprising: A side outer member surrounds the lower panel, the upper panel, and the connection pipe and is coupled to the lower panel, the upper panel, and the connection pipe from the outside.

10. A vehicle comprising: A floor assembly, comprising a floor, side beams on both sides of the floor, and a wheel mounting portion disposed rearwardly from the side beams; Roof assembly; an upper assembly having a lower panel coupled to a side portion of the floor assembly and an upper panel extending upward from the lower panel, wherein an upper portion of the upper panel is coupled to the roof assembly and a lower portion of the upper panel is coupled to the lower panel; and a vertically extending connecting tube, wherein an upper portion of the connecting tube is coupled to the roof assembly and a lower portion of the connecting tube is coupled to the floor assembly, Wherein, the wheel mounting part comprises: rib part; a rear side member extending rearwardly from the side beam; a panel portion coupled to the rear side member, wherein a wheel is mounted to the panel portion; a horizontal member portion coupled to an upper portion of the panel portion and extending in the same direction as the rear side member; and A vertical member portion vertically extends to span across the panel portion and connects the rear side member to the horizontal member portion.

11. The vehicle according to claim 10, wherein: The upper panel has a C-shaped frame having a vertical surface and side surfaces bent at both sides of the vertical surface.

12. The vehicle according to claim 10, wherein: The connecting pipe has a polygonal shape.

13. The vehicle according to claim 10, wherein: The facing surface of the upper panel cooperates with the connection pipe so that the upper panel is coupled to the connection pipe.

14. A vehicle body joint structure, comprising: A floor assembly, comprising a floor, side beams on both sides of the floor, and a wheel mounting portion disposed rearwardly from the side beams; a lower panel disposed on a side surface of the base plate assembly and coupled to the wheel mounting portion; an upper panel extending upwardly from the lower panel and connected to a roof assembly for a roof of the vehicle body; a connecting pipe extending vertically to connect the floor assembly to the roof assembly, the connecting pipe being arranged to face the upper panel and coupled to the upper panel; as well as A support member is located in the upper end portion of the lower panel, and the support member surrounds the lower portion of the connecting pipe.

15. The vehicle body joint structure according to claim 14, wherein: The wheel mounting portion comprises: a rear side member configured to extend rearwardly from the side beam; a panel portion coupled to the upper side portion of the rear side member and having an area; a horizontal member portion coupled to an upper end portion of the panel portion and extending in the same direction as the rear side member; and A vertical member portion vertically extends to span across the panel portion and connects the rear side member to the horizontal member portion. 16 . The vehicle body joint structure according to claim 14 , further comprising a bracket including a first end portion coupled to the upper panel and a second end portion coupled to the connecting pipe.

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