Vehicle body connection structure

Abstract

Vehicle body connection structure comprising: a lower plate (100) arranged on a side surface of a floor assembly (300); an upper plate (400) extending upwards from the lower plate (100) and connected to a roof assembly (200) for a roof of a vehicle body; characterized in that the vehicle body connection structure comprises: a connecting tube (500) extending vertically such that it connects the floor assembly (300) to the roof assembly (200) and is arranged such that it points towards the upper plate (400) and is coupled to the upper plate (400).

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a vehicle body connection structure. BACKGROUND

[0002] A pillar of a vehicle is divided into an A-pillar, a B-pillar and a C-pillar according to a position of the pillar and plays an important role not only in supporting a roof of the vehicle but also in improving the rigidity and safety of a vehicle body.

[0003] When designed as a monocoque type, a conventional pillar has a structure that combines multiple moldings and has excellent rigidity, but it is almost impossible to implement it as a structural part in vehicles of different designs or to replace each segment.

[0004] Alternatively, the entire A-pillar can be constructed within the existing monocoque structure using an inner element and a deep-drawn mold of an outer element. However, the existing monocoque structure has an extensibility that makes it almost impossible to connect with other parts, and a new mold would have to be developed for each design.

[0005] This means that when manufacturing small batches or through a smart factory, a large number of design changes are required, and thus there is the problem that production costs inevitably increase due to a significant increase in the number of molds.

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

[0007] The foregoing is merely intended to provide a better understanding of the background of the present disclosure and is not intended to imply that the present disclosure falls within the scope of the prior art already known to a person skilled in the art. SUMMARY OF THE INVENTION

[0008] Accordingly, the present disclosure has been made in consideration of problems encountered in the related art, and the present disclosure relates to a vehicle body connection structure. Embodiments of the present disclosure provide a vehicle body connection structure capable of ensuring rigidity and extensibility for connection to other parts by changing a structure of a C-pillar.

[0009] According to one embodiment, there is provided a vehicle body connecting structure comprising a lower plate arranged on a side surface of a floor assembly, an upper plate configured to extend upward from the lower plate and connected to the roof assembly forming a roof of a vehicle body, and a connecting pipe configured to extend vertically to connect the floor assembly to the roof assembly and arranged to face the upper plate to be coupled thereto.

[0010] The floor assembly may include a floor having side sills on both sides and a wheel attachment portion disposed behind the side sill of the floor and to which a wheel is attached, and the lower plate may be coupled to the wheel attachment portion.

[0011] The wheel attachment part may include a rear side member configured to extend rearward from the side sill, a plate part coupled to an upper side of the rear side member and formed to have a surface, a horizontal member part coupled to an upper end of the plate part and extending in the same direction as the rear side member, and a vertical member part configured to extend vertically so as to cross the plate part and connect the rear side member to the horizontal member part.

[0012] The lower plate may be formed in a shape in which an upper end portion of the lower plate is coupled to the upper plate, and a lower end portion thereof surrounds the wheel fixed to the wheel fixing member.

[0013] A support may be formed in an upper end portion of the lower plate, which support is configured to surround a lower portion of the connecting pipe.

[0014] An edge from an upper end portion to a lower end portion of the lower plate may be adapted along an edge of the wheel attachment part to be coupled therewith.

[0015] The connecting pipe may be formed in a polygonal shape having a closed cross section, and an extension end portion configured to extend to an outer surface of the connecting pipe so as to overlap the connecting pipe may be formed on the upper plate.

[0016] Facing surfaces of the top plate and the connecting tube can be adjusted to be coupled.

[0017] The vehicle body connecting structure may further include a bracket having one end portion coupled to the upper plate and the other end portion coupled to the connecting pipe to connect the upper plate to the connecting pipe.

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

[0019] The vehicle body connecting structure may further include an outer side formed to surround the lower plate, the upper plate, and the connecting pipe and coupled to the lower plate, the upper plate, and the connecting pipe while surrounding the lower plate, the upper plate, and the connecting pipe from the outside. Character list

[0020] The above and other objects, features, and further advantages of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: Fig. 1 is a diagram showing a vehicle body connection structure according to embodiments of the present disclosure; and Fig. 2 to Fig. 8 graphics describing a C-pillar structure according to the Fig. 1 shown vehicle body connection structure. DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

[0021] Hereinafter, a vehicle body connection structure according to embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0022] Fig. 1 is a diagram showing a vehicle body connection structure according to embodiments of the present disclosure, and Fig. 2 to Fig. 8 are graphics describing a C-pillar structure according to the Fig. 1 shown vehicle body connection structure.

[0023] The present disclosure relates to a modularized vehicle body. As in Fig. 1, form, for example, a front apron arrangement in the design of the modularized vehicle body 11 , a dashboard arrangement 12 , a medium floor arrangement 13 and a rear floor arrangement 14 a floor arrangement 10 , and a front lower plate 21 , a rear side arrangement 23 , a rear arrangement 22 and a roof arrangement 24 form an upper arrangement 20 . In a condition where the floor arrangement 10 and the upper arrangement 20 assembled, the modularized vehicle body can be formed if a skin arrangement 30that have a fender 31 , an outside 32 and a roof panel 33 with the floor arrangement 10 and the upper arrangement 20 can be coupled.

[0024] The modularized vehicle body described above is an example, and this example is only intended to provide a better understanding of the modularized vehicle body. In the actual formation of a vehicle body, an assembly sequence and any configuration may be changed.

[0025] Embodiments of the present disclosure relate to a connecting structure between the rear side assembly 23 and the roof arrangement 24 that form the upper arrangement. As shown in Fig. 2, an embodiment of the present disclosure includes a bottom plate 100 which are attached to a side surface of a floor arrangement 300 is arranged, an upper plate 400which extends from the lower plate 100 extends upwards and with a roof arrangement 200 which forms a vehicle body roof, and a connecting pipe 500 which extends vertically in such a way that it covers the floor arrangement 300 with the roof arrangement 200 and is arranged in such a way that it is connected to the upper plate 400 and with the upper plate 400 is coupled. The lower plate 100 and the upper plate 400 correspond to the upper arrangement described above 20 the rear side arrangement 23 .

[0026] The floor arrangement 300 a floor 310 which forms a floor surface of the vehicle body, and the lower plate 100 is connected to one side of the floor arrangement 300 In particular, the upper plate 400 above the lower plate 100coupled and extends from the lower plate 100 upwards to start with the roof arrangement 200 to be connected. The upper plate 400 may be a C-pillar, which is a rear pillar and is formed as a "C"-shaped frame having a vertical surface extending vertically and side surfaces curved on both sides of the vertical surface. Accordingly, the upper plate 400 expand or contract in a longitudinal direction to be easily used in a variety of vehicle types and models.

[0027] The connecting pipe 500 extends vertically in such a way that it covers the floor arrangement 300 with the roof arrangement 200 and is arranged in such a way that it is connected to the upper plate 400 to be coupled with it. The connecting pipe 500 can have the same shape as the upper plate 400or may be formed in such a way that it has a polygonal shape. Furthermore, mutually facing surfaces of the upper plate 400 and the connecting pipe 500 to be coupled together so that a secure supporting stiffness of the upper plate 400 and the connecting pipe 500 Accordingly, the connecting pipe can 500 expand or contract in a longitudinal direction to be easily used in a variety of vehicle types and models.

[0028] As described above, as a configuration for supporting the roof arrangement 200 in terms of floor layout 300 an upper section of the upper plate 400 with the roof arrangement 200 coupled, and a lower portion thereof is connected to the lower plate 100 coupled with the floor arrangement 300is coupled, an upper section of the connecting pipe 500 is with the roof arrangement 200 coupled and a lower section thereof is connected to the floor assembly 300 coupled so that the support stiffness and rigidity of the roof arrangement 200 through the upper plate 400 and the connecting pipe 500 Furthermore, lengths of the upper plate 400 and the connecting pipe 500 varied to be easily used in a variety of vehicle types.

[0029] In describing in detail the embodiments of the present disclosure, as in Fig. 3, the floor arrangement 300 a floor 310 , which has side skirts on both sides 311 and a wheel fastening part 320 which extends from the side skirts 311 of the soil 310extends backwards, and the lower plate 100 can be used with the wheel attachment 320 be coupled.

[0030] As described above, the floor arrangement 300 the ground 310 , which has the side skirts on both sides 311 and the wheel fastening part 320 which is located on the ground 310 extends backwards. The floor can 310 in addition to the side skirts 311 a cross member and the like, which is not shown. The rear wheel attachment part 320 is behind the side skirts 311 of the soil 310 formed. The wheel fastening part 320 is formed in such a way that it has a predetermined area so that a wheel can be attached, and it can have a rib part 321be formed to increase the rigidity of a section to which the wheel is attached. As described above, the floor 310 and the wheel fastening part 320 be formed and manufactured in one piece or integrally, and since the floor 310 and the wheel fastening part 320 are formed in one piece, strength and rigidity are ensured.

[0031] The wheel fastening part described above 320 may have: a rear side element 325 , which extends from the side skirts 311 extends backwards, a plate part 322 , which is attached to the rear side element 325 and is formed such that it has a surface, a horizontal element part 323 , which is connected to an upper section of the plate part 322 coupled and extends in the same direction as the rear side element 325, and a vertical element part 324 which extends in such a way that it covers the plate part 322 vertically and is designed in such a way that it crosses the rear side element 325 with the horizontal element part 323 connects.

[0032] As in Fig. 4, the wheel fastening part 320 the rear side element 325 , the plate part 322 , the horizontal element part 323 and the vertical element part 324 The rear side element can 325 with a rear side of the side skirts 311 be coupled and formed in such a way that it has a closed cross-section. The plate part 322 is formed to have a surface and divides an interior and an exterior of the vehicle, and the wheel is fixed to the plate part 322 The horizontal element part 323is at an upper end of the plate part 322 formed. The horizontal element part 323 extends in an extension direction of the rear side element 325 while forming a closed cross-section.

[0033] Furthermore, the horizontal element part 323 together with the connecting pipe 500 the roof arrangement 200 support, since the horizontal element part 323 forms a closed cross-section, so that the strength of the horizontal element part 323 is ensured if the connecting pipe 500 is coupled upwards.

[0034] Furthermore, the support stiffness against a vertical load is increased because the horizontal element part 323 and the rear side element 325 from the vertical element part 324 which extends vertically in such a way that it covers the plate part 322Consequently, the wheel attachment part 320 the support stiffness in a vertical direction to ensure the roof arrangement 200 firmly supported, and since the strength of the wheel attachment part 320 If this is ensured, stability against a collision is improved.

[0035] Meanwhile, an upper end portion of the lower plate 100 with the upper plate 400 be coupled, and a lower end portion thereof may be formed in a shape surrounding a wheel attached to the wheel attachment part 320 is attached.

[0036] The upper plate 400 is connected by welding or riveting to the upper end section of the lower plate 100 coupled, and the lower end portion of the lower plate 100 can be determined taking into account the geometry of the wheel that is attached to the wheel attachment 320be cut in a circle. Furthermore, a degree of design freedom is ensured, since the lower plate 100 is designed as a separate component and is connected to one side of the floor assembly 300 is coupled.

[0037] At the upper end portion of the lower plate described above 100 can be a support 110 for surrounding a lower section of the connecting pipe 500 be formed, and the lower section of the connecting pipe 500 can be used with the support 110 be coupled.

[0038] Since the lower section of the connecting pipe 500 at the upper end section of the lower plate 100 from the support 110 is surrounded, is like in Fig. 5 shown a structure is formed in which the connecting pipe 500 through the support 110supported so that a rigid coupling structure can be formed. Since the support 110 the lower plate 100 in a state with the connecting pipe 500 by connecting the lower section of the connecting pipe 500 surrounds, the coupling stiffness of the lower plate 100 ensured and the support strength of the connecting pipe 500 is increased.

[0039] Since the support 110 the lower plate 100 to the connecting pipe 500 is adjusted when the lower plate 100 with the floor arrangement 300 is coupled, a fixed position is determined, thus simplifying production.

[0040] An edge from the upper end portion to the lower end portion of the lower plate 100 can be placed along one edge of the wheel attachment part 320 be adapted to the wheel attachment part 320To be more precise, the lower plate 100 be formed in such a way that it corresponds to the shape of an outer edge of the wheel fastening part 320 corresponds, and the edge of the lower plate 100 can be welded or riveted to the edge of the wheel attachment part 320 coupled and fixed to it. The upper end section of the lower plate can 100 the upper plate 400 and the connecting pipe 500 and can be connected to an upper section of the wheel attachment part 320 be coupled. One end section of the lower plate 100 can be fitted with a front lower section of the wheel attachment 320 be coupled, and the end portion thereof may be connected to a rear end portion of the wheel attachment part 320 in the upper section thereof. As described above, some points of the lower plate 100 with the wheel attachment part 320coupled so that deterioration of stability due to excessive enlargement of the coupling section is prevented and an inclined or curved section is avoided to ensure the simplicity of coupling work.

[0041] However, as in Fig. 6 shown, the connecting pipe 500 be formed in polygonal shape with a closed cross-section, and in the upper plate 400 an extension end section 410 which extends to an outer surface of the connecting pipe 500 extends so that it connects the pipe 500 overlaps.

[0042] As described above, the stiffness of the connecting tube 500 ensured because the connecting pipe 500 in polygonal shape with a closed cross-section. Alternatively, the connecting pipe 500 like the upper plate 400be formed in a "C" shape, in which some surfaces are open. Since the connecting pipe 500 However, the strength should be ensured, as it is related to the floor arrangement 300 and a rod of the roof arrangement 200 is connected, the connecting pipe 500 preferably formed in a polygonal shape with a closed cross-section.

[0043] Furthermore, the upper plate 400 the extension end section 410 formed, which extends to the outer surface of the connecting pipe 500 extends and overlaps the connecting pipe 500 , so that the coupling stiffness between the upper plate 400 and the connecting pipe 500 Furthermore, a structure is formed in which the connecting pipe 500 through the extension end section 410 the upper plate 400 supported so that solid support strength can be formed.

[0044] However, as in Fig. 5 shown, a bracket 430 be provided in such a way that an end section of the clamp 430 with the upper plate 400 and the other end portion thereof is connected to the connecting pipe 500 is coupled, whereby the upper plate 400 with the connecting pipe 500 The bracket 430 can be attached to an intermediate section of the upper plate 400 and the connecting pipe 500 Since the bracket 430 the upper plate 400 with the connecting pipe 500 connects, the coupling stiffness between the upper plate 400 and the connecting pipe 500 ensured. Since the bracket 430 in a state where they are connected to the upper plate 400 and the connecting pipe 500coupled is capable of being coupled with other parts, coupling rigidity can also be ensured when an outer side is coupled with another part.

[0045] However, the connecting pipe 500 as a variety of connecting pipes 500 be provided in such a way that they are arranged in a direction that is directed towards the upper plate 400 points.

[0046] This is another example according to the connection structure between the top plate 400 and the connecting pipe 500 . As in Fig. 7, the connecting pipes 500 as a variety of connecting pipes 500 and in a state in which they are arranged in the direction leading to the upper plate 400 with the upper plate 400 Consequently, a degree of coupling freedom between the upper plate 400and the connecting pipe 500 improved, and additional rigidity can be added according to the number of connecting tubes 500 can be ensured in a simple way.

[0047] However, as in Fig. 8 shown, the outside 32 be formed in such a way that they support the lower plate 100 , the upper plate 400 and the connecting pipe 500 surrounds and with the lower plate 100 , the upper plate 400 and the connecting pipe 500 is coupled, while the lower plate 100 , the upper plate 400 and the connecting pipe 500 from the outside. As described above, the lower plate 100 in a state in which they are incompatible with the floor arrangement 300 is coupled through the upper plate 400 with the roof arrangement 200 coupled, and in a state where the connecting pipe 500 with the floor arrangement 300and the roof arrangement 200 is coupled, the outside 32 with the lower plate 100 , the upper plate 400 and the connecting pipe 500 coupled while the lower plate 100 , the upper plate 400 and the connecting pipe 500 so that a coupling structure can be formed to which strength and rigidity are added. Furthermore, an exterior shape of the vehicle is determined according to a design of the exterior 32 so that the design can be easily changed.

[0048] The vehicle body joint structure formed in the above-described structure can be easily and commonly used in various vehicle types by simply designing a required pillar structure of the vehicle, while eliminating or minimizing the development of a separate new mold. Consequently, it is easy to develop a new vehicle type and is efficient even in small-batch production. Furthermore, the rigidity and assemblability of the roof are ensured.

[0049] Although preferred embodiments of the present disclosure have been described for illustrative purposes, it will be apparent to those skilled in the art that various modifications, additions, and substitutions are possible without departing from the scope and spirit of the present disclosure as disclosed in the appended claims.

Claims

[1] A vehicle body connection structure comprising: a lower plate disposed on a side surface of a floor assembly; an upper panel extending upwardly from the lower panel and connected to a roof assembly for a roof of a vehicle body; and a connecting pipe extending vertically to connect the floor assembly to the roof assembly and arranged to face the top plate and be coupled to the top plate. [2] A vehicle body connecting structure according to claim 1, wherein: the floor assembly includes a floor having side sills on both sides and a wheel attachment member disposed rearward of the side sills of the floor; a wheel is attached to the wheel attachment part; and the lower plate is coupled to the wheel attachment part. [3] A vehicle body connection structure according to claim 2, wherein the wheel attachment part comprises: a rear side member configured to extend rearwardly from the side sills; a plate member coupled to an upper side of the rear side member and having a surface; a horizontal element part coupled to an upper end of the plate part and extending in a same direction as the rear side element; and a vertical element part extending vertically to cross the plate part and connect the rear side element to the horizontal element part. [4] The vehicle body connecting structure according to claim 2, wherein the lower plate is formed in a shape in which an upper end portion of the lower plate is coupled to the upper plate, and a lower end portion of the lower plate surrounds the wheel fixed to the wheel fixing member. [5] The vehicle body connecting structure according to claim 2, further comprising a stay formed in an upper end portion of the lower plate, the stay surrounding a lower portion of the connecting pipe. [6] The vehicle body connecting structure according to claim 2, wherein an edge extending from an upper end portion to a lower end portion of the lower plate is fitted along an edge of the wheel attachment part, the edge of the lower plate being coupled to the edge of the wheel attachment part. [7] A vehicle body connecting structure according to any preceding claim, wherein the connecting pipe has a polygonal shape with a closed cross section, and an extension end portion is formed on the upper plate, which extends to an outer surface of the connecting pipe so as to overlap the connecting pipe. [8] A vehicle body connecting structure according to any preceding claim, wherein facing surfaces of the upper plate and the connecting pipe are fitted to each other to be coupled. [9] The vehicle body connecting structure according to any one of the preceding claims, further comprising a bracket having a first end portion coupled to the upper plate and a second end portion coupled to the connecting pipe for connecting the upper plate to the connecting pipe. [10] A vehicle body connecting structure according to any preceding claim, wherein the connecting pipe comprises a plurality of connecting pipes, and each of the plurality of connecting pipes is arranged in a direction facing the upper plate. [11] A vehicle body connection structure according to any one of the preceding claims, further comprising: an outer side surrounding the lower plate, the upper plate and the connecting pipe and coupled externally to the lower plate, the upper plate and the connecting pipe. [12] Vehicle comprising: a floor arrangement; a roof arrangement; an upper assembly having a lower plate coupled to a side of the floor assembly and an upper plate extending upwardly from the lower plate, an upper portion of the upper plate coupled to the roof assembly and a lower portion of the upper plate coupled to the lower plate; and a connecting pipe extending vertically, wherein an upper portion of the connecting pipe is coupled to the roof assembly and a lower portion of the connecting pipe is coupled to the floor assembly. [13] A vehicle according to claim 12, wherein the upper plate comprises a C-shaped frame having a vertical surface and side surfaces curved on both sides of the vertical surface. [14] A vehicle according to claim 12 or 13, wherein the connecting pipe has a polygonal shape. [15] A vehicle according to any one of claims 12 to 14, wherein facing surfaces of the upper plate and the connecting pipe are fitted to each other to couple the upper plate and the connecting pipe. [16] A vehicle according to any one of claims 12 to 15, wherein the floor assembly comprises: a floor; Side skirts on both sides of the floor; and a wheel mounting part that extends rearward from the side skirts. [17] A vehicle according to claim 16, wherein the wheel attachment part comprises: a rib part; a rear side element extending rearward from the side sills; a plate member coupled to the rear side member, a wheel being attached to the plate member; a horizontal element part coupled to an upper portion of the plate part and extending in a same direction as the rear side element; and a vertical element part extending to vertically cross the plate part and connect the rear side element to the horizontal element part. [18] Vehicle body connection structure, comprising: a floor assembly comprising a floor, side sills on both sides of the floor, and a wheel mounting portion extending rearwardly from the side sills; a lower plate disposed on a side surface of the floor assembly and coupled to the wheel attachment portion; an upper panel extending upwardly from the lower panel and connected to a roof assembly for a roof of a vehicle body; a connecting pipe extending vertically to connect the floor assembly to the roof assembly is arranged such that that it faces the upper plate and is coupled to the upper plate; and a support in an upper end portion of the lower plate, the support surrounding a lower portion of the connecting tube. [19] A vehicle body connection structure according to claim 18, wherein the wheel attachment part comprises: a rear side member configured to extend rearwardly from the side sills; a plate member coupled to an upper side of the rear side member and having a surface; a horizontal element part coupled to an upper end of the plate part and extending in a same direction as the rear side element; and a vertical element part extending vertically to cross the plate part and connect the rear side element to the horizontal element part. [20] The vehicle body connecting structure according to claim 18 or 19, further comprising a bracket having a first end portion coupled to the upper plate and a second end portion coupled to the connecting pipe.

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