Reinforcing member assembly for side rail of vehicle

Abstract

A reinforcement member assembly for a side rail of a vehicle includes an upper reinforcement member formed in a longitudinal direction of the vehicle and disposed inside the side rail of the vehicle, a lower reinforcement member, and an inner reinforcement member; a lower reinforcing member located below the upper reinforcing member, including a side in a width direction of the vehicle connected to the upper reinforcing member in a longitudinal direction of the vehicle, the lower reinforcing member being disposed inside the side rail; an inner reinforcement member is connected to the bottom surface of the upper reinforcement member and the upper surface of the lower reinforcement member, respectively, which reduces the weight of the vehicle and improves the strength of the vehicle against a side impact.

Description

Technical Field

[0001] The present invention relates to a reinforcing member assembly for a side member of a vehicle, which can reduce weight and improve side collision performance. Background Art

[0002] Reference Figure 1-Figure 3 , the side member 110 is provided at a lower portion of a side surface of the vehicle along a longitudinal direction of the vehicle.

[0003] The side member 110 is formed by combining a side member inner member 111 formed to protrude toward the interior of the vehicle and a side member outer member 112 formed to protrude toward the exterior of the vehicle. The upper and lower ends of the side member inner member 111 and the side member outer member 112 are connected to each other to form a hollow structure in the longitudinal direction of the vehicle, thereby forming a lower structure of the vehicle.

[0004] Meanwhile, a reinforcement member 120 is provided inside the side beam 110 to reinforce the rigidity of the side beam 110. For example, the reinforcement member 120 is manufactured by extruding an aluminum alloy. Since the reinforcement member 120 is made of a different material than the side beam inner member 111 and the side beam outer member 112 (which are typically made of steel plates), the reinforcement member 120 does not need to be connected to the side beam inner member 111 or the side beam outer member 112 by welding.

[0005] In order to fasten the reinforcement member 120 to the side rail inner member 111 or the side rail outer member 112, brackets 121 and 122 are connected to the reinforcement member 120 using screws 123 by a flow drill screw (FDS) method, and then the brackets 121 and 122 are connected to the side rail inner member 111 or the side rail outer member 112 by welding, etc., so that the reinforcement member 120 can be set inside the side rail 110.

[0006] However, reinforcing member 120 is manufactured by extruding an expensive aluminum alloy, which increases vehicle manufacturing costs. Furthermore, to install reinforcing member 120, the process of fastening brackets 121 and 122 using the FDS method and the process of welding brackets 121 and 122 to the side sill inner member 111 or side sill outer member 112 are performed separately, requiring the provision of an additional production line, thereby increasing workload and vehicle production costs. For example, brackets 121 and 122 are first attached to reinforcing member 120, then to the vehicle's inner panel 113 components, such as the center pillar inner panel and the side sill inner member 111, and finally to the side sill outer member 112, which is attached to the outer side of the components.

[0007] In addition, since the reinforcing member 120 is manufactured by an extrusion process, the thickness of the cross section of the reinforcing member 120 will inevitably become thicker, and therefore, the gap between the outer periphery of the reinforcing member 120 and the side beam inner member 111 or the side beam outer member 112 will become narrower. This will hinder the smooth flow of the electrodeposition solution during the coating process, causing the electrodeposition solution to gather together in certain areas, thereby resulting in over-coating or causing coating defects such as the electrodeposition solution not being applied to certain areas. That is, due to the gap between the reinforcing member 120, the side beam inner member 111 and the side beam outer member 112, as shown in FIG. Figure 3 As shown in FIG, the gaps between the reinforcing member 120 and the side member inner member 111 and the side member outer member 112 at both sides and the lower portion of the reinforcing member 120 are as shown in FIG. Figure 4 As shown, the electrodeposition solution may not flow smoothly, and thus the electrodeposition solution may not be applied uniformly, resulting in coating defects.

[0008] Furthermore, in vehicles such as multi-purpose vehicles (MPVs), batteries are installed within the vehicle. The inclusion of batteries increases the vehicle's weight, and therefore the load the vehicle must support in the event of a side collision. However, since vehicles such as MPVs are typically equipped with sliding doors, the cross-sectional area of ​​the side sills 110 is reduced to accommodate the rails used to open and close the sliding doors. This makes it difficult to use a reinforcement member 120 made of extruded aluminum alloy, resulting in a reduced load-bearing capacity against side collisions.

[0009] As described above, when the load-bearing capacity against a side collision is weakened, there is a problem in that a battery provided for electrification is damaged due to the side collision.

[0010] The information included in this Background of the Invention section is only intended to enhance understanding of the overall background of the invention and should not be taken as an acknowledgment or any form of suggestion that this information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0011] Various aspects of the present invention are directed to providing a reinforcement member assembly for a side sill of a vehicle that can reduce weight and exhibit comparable crash performance compared to a reinforcement member of an aluminum extrusion material.

[0012] Exemplary embodiments of the present invention are also directed to providing a reinforcing member assembly for a side sill of a vehicle that is easily disposed inside the side sill to reduce manufacturing costs and does not hinder the flow of an electrodeposition solution during a coating process.

[0013] Other purposes and advantages of the present invention can be understood by the following description and become clear with reference to exemplary embodiments of the present invention. Likewise, it is obvious to those skilled in the art that the purposes and advantages of the present invention can be achieved by the claimed method or its combination.

[0014] According to an exemplary embodiment of the present invention, a reinforcement member assembly for a side beam of a vehicle is provided, which includes an upper reinforcement member, a lower reinforcement member and an inner reinforcement member, wherein the upper reinforcement member is formed along the longitudinal direction of the vehicle and is arranged inside the side beam of the vehicle; the lower reinforcement member is located below the upper reinforcement member and includes one side in the width direction of the vehicle, which side is connected to the upper reinforcement member along the longitudinal direction of the vehicle, and the lower reinforcement member is arranged inside the side beam; the inner reinforcement member is respectively connected to the bottom surface of the upper reinforcement member and the upper surface of the lower reinforcement member.

[0015] The upper reinforcement member may include an upper surface and a side surface bent downward from the upper surface, and the lower reinforcement member may include a lower surface located below the upper surface of the upper reinforcement member and a side surface bent upward from the lower surface and connected to the side surface of the upper reinforcement member.

[0016] The upper reinforcement member may include a plurality of rib portions formed on the upper surface in a width direction of the vehicle to be higher than the upper surface, and the plurality of rib portions may be formed at intervals in a longitudinal direction of the vehicle.

[0017] A through hole may be formed in the rib portion so as to pass through the rib portion.

[0018] The lower reinforcement member may include a plurality of rib portions formed on the lower surface in a width direction of the vehicle to be lower than the lower surface, and the plurality of rib portions may be formed at intervals in a longitudinal direction of the vehicle.

[0019] A through hole may be formed on each of a lower surface and a side surface of the lower reinforcement member.

[0020] The inner reinforcement member may be provided in plural numbers and arranged at regular intervals in the longitudinal direction of the vehicle.

[0021] The inner reinforcement member may include an upper combining portion, a lower combining portion, and a connecting portion, wherein the upper combining portion is connected to the bottom surface of the upper reinforcement member, the lower combining portion is provided at both ends of the upper combining portion in the longitudinal direction of the vehicle and is connected to the upper surface of the lower reinforcement member, and the connecting portion connects the upper combining portion and the lower combining portion.

[0022] The rib portion may be formed in the upper coupling portion in a width direction of the vehicle to be lower than the upper coupling portion.

[0023] A rib portion may be formed on an upper surface of the upper reinforcement member in a width direction of the vehicle to be higher than the upper surface, and the rib portion of the inner reinforcement member may be located below the rib portion.

[0024] A through hole may be formed in the rib portion.

[0025] The reinforcement member assembly may further include a connecting member having front and rear end portions connected to a plurality of inner reinforcement members adjacent to each other in a longitudinal direction of the vehicle.

[0026] A rib portion may be formed in the connecting member along a width direction of the vehicle.

[0027] The rib portion may be formed on an upper surface of the upper reinforcement member in a width direction of the vehicle to be higher than the upper surface, and the rib portion of the connection member may be located below the rib portion of the upper reinforcement member.

[0028] The connection member may be disposed between and connected to the upper reinforcement member and the inner reinforcement member.

[0029] The internal reinforcement member may include a first internal reinforcement member and a second internal reinforcement member, wherein the first internal reinforcement member is arranged as a plurality of first internal reinforcement members spaced apart along the longitudinal direction of the vehicle, and the second internal reinforcement member is spaced apart from the first internal reinforcement member among the first internal reinforcement members that is arranged at the frontmost or rearmost position in the longitudinal direction of the vehicle.

[0030] The upper reinforcement member and the lower reinforcement member may be connected to the side member inner member of the side member.

[0031] The reinforcement member assembly may further include an extending member connected to a front end portion or a rear end portion of the lower reinforcement member.

[0032] The second connection member connects the first inner reinforcement member and the second inner reinforcement member, and the second connection member may be formed to have a different length from that of the first connection member.

[0033] The extension member may be formed to have substantially the same cross-sectional shape as the lower reinforcement member.

[0034] By incorporation into this document of the accompanying drawings and Figure 1 Other features and advantages of the methods and apparatus of the present invention will become more clearly apparent or elucidated with reference to specific embodiments that illustrate certain principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The figure is a perspective view exemplarily showing a state in which a reinforcement member is arranged inside a side member according to the prior art.

[0036] Figure 2 The figure is a perspective view exemplarily showing a state in which a bracket is arranged on a reinforcing member according to the prior art.

[0037] Figure 3 The figure is a cross-sectional view exemplarily showing a vehicle center pillar portion in a side member according to the prior art.

[0038] Figure 4 FIG1 is a cross-sectional view exemplarily showing a center pillar of a vehicle in a side sill according to the related art when viewed from the rear.

[0039] Figure 5 It is a partial perspective view exemplarily showing a state in which a reinforcement member assembly for a side sill according to an exemplary embodiment of the present invention is provided at a side sill inner member.

[0040] Figure 6 FIG. 1 is a diagram showing a state in which a reinforcement member assembly for a side sill is separated from a side sill inner member according to an exemplary embodiment of the present invention. Figure 5 Exploded three-dimensional diagram.

[0041] Figure 7 FIG. 1 is a perspective view exemplarily illustrating a reinforcement member assembly for a side sill according to an exemplary embodiment of the present invention.

[0042] Figure 8 FIG. 1 is a diagram showing a reinforcing member assembly for a side member according to an exemplary embodiment of the present invention. Figure 7 Exploded three-dimensional diagram.

[0043] Figure 9 FIG. 1 is a diagram showing a reinforcing member assembly for a side member according to an exemplary embodiment of the present invention. Figure 5 Bottom perspective view.

[0044] Figure 10 FIG. 1 is a diagram showing a reinforcing member assembly for a side member according to an exemplary embodiment of the present invention. Figure 5 side view.

[0045] Figure 11 To follow Figure 10 A cross-sectional view taken along line II.

[0046] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather show a somewhat simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the present invention as included herein, including, for example, specific dimensions, orientations, locations, and shapes will be determined in part by the specific intended application and use environment.

[0047] In the figures, like reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. DETAILED DESCRIPTION

[0048] Reference will now be made in detail to various specific embodiments of the present invention, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments thereof, it should be appreciated that this description is not intended to limit the present invention to those exemplary embodiments thereof. On the other hand, the present invention is intended to cover not only the exemplary embodiments thereof, but also various alternative forms, modifications, equivalent forms, and other embodiments that may be included within the spirit and scope of the present invention as defined by the appended claims.

[0049] Hereinafter, a reinforcement member assembly for a side sill according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0050] The reinforcement member assembly 20 for a side sill according to an exemplary embodiment of the present invention may be provided inside a side sill 10 of a vehicle to improve the rigidity of the side sill 10 .

[0051] The side sill 10 may be formed by combining a side sill inner member 11 formed to protrude toward the vehicle interior and a side sill outer member 12 formed to protrude toward the vehicle exterior.

[0052] The reinforcement member assembly 20 for the side sill may be disposed inside the side sill 10 to improve the rigidity of the side sill 10 .

[0053] According to an exemplary embodiment of the present invention, a reinforcement member assembly 20 for a side beam may include an upper reinforcement member 21, a lower reinforcement member 22, and inner reinforcement members 23 and 24, wherein the upper reinforcement member 21 is formed along the longitudinal direction of the vehicle and is arranged inside the side beam 10 of the vehicle; the lower reinforcement member 22 is located below the upper reinforcement member 21, includes one side in the width direction of the vehicle, and the side is connected to the upper reinforcement member 21 along the longitudinal direction of the vehicle, and the lower reinforcement member 22 is arranged inside the side beam 10; the inner reinforcement members 23 and 24 are respectively connected to the bottom surface of the upper reinforcement member 21 and the upper surface of the lower reinforcement member 22.

[0054] The upper reinforcement member 21 may be formed along the longitudinal direction of the vehicle.

[0055] The upper reinforcement member 21 may include an upper surface 21 a formed in the longitudinal direction of the vehicle and a side surface 21 b extending downward from a side of the upper surface 21 a. The upper reinforcement member 21 may include a curved cross-section formed by the upper surface 21 a and the side surface 21 b, the curved cross-section being continuously formed in the longitudinal direction of the vehicle, thereby forming a cross-section of the upper side of the reinforcement member assembly 20 for the side sill.

[0056] The rib portion 21aa may be formed on the upper surface 21a so as to be higher than the upper surface 21a. Since the rib portion 21aa is formed higher than the upper surface 21a in the vehicle width direction, the rib portion 21aa mitigates the side impact load that the upper surface 21aa may experience in the event of a side impact. The rib portion 21aa may be formed as a plurality of rib portions 21aa at regular intervals on the upper surface 21a in the longitudinal direction of the vehicle. Since the rib portions 21aa formed on the upper surface 21a are formed higher than the upper surface 21a, the rib portions 21aa may include a shape that protrudes upward from the upper surface 21a. Since the rib portions 21aa support the impact load input to the upper surface 21a in the vehicle width direction, the rigidity of the reinforcement member assembly 20 for the side sill can be improved. The rib portions 21aa can increase the section modulus of the upper surface 21a, thereby improving rigidity. The rib portions 21 aa may be formed substantially in the width direction of the vehicle, and alternatively, some rib portions 21 aa may be additionally formed to protrude in the longitudinal direction of the vehicle.

[0057] Through-holes 21ab may be formed in the rib portion 21aa. Since the through-holes 21ab are formed through the rib portion 21aa, when the vehicle body is subjected to electrodeposition coating, the electrodeposition solution can freely flow through the through-holes 21ab to facilitate application of the electrodeposition solution and prevent the electrodeposition solution from accumulating in certain areas or being unable to flow.

[0058] The lower reinforcement member 22 may be located below the upper reinforcement member 21 , and one side of the lower reinforcement member 22 may be connected to the upper reinforcement member 21 in a longitudinal direction of the vehicle.

[0059] The lower reinforcement member 22 may be disposed inside the side member 10 in a state of being connected to the upper reinforcement member 21 , and thus an assembly of the upper reinforcement member 21 and the lower reinforcement member 22 may form an integrated structure.

[0060] The lower reinforcement member 22 may include a lower surface 22a located below the upper surface 21a and a side surface 22b bent upward from the lower surface 22a and connected to the side surface 21b of the upper reinforcement member 21. By forming a curved cross section with the lower surface 22a and the side surface 22b, the lower reinforcement member 22 may form a cross section of a lower portion for side sealing in the reinforcement member assembly 20.

[0061] The lower reinforcing member 22 can be connected to the upper reinforcing member 21 so that the assembly thereof becomes a U-shaped state rotated 90 degrees. Therefore, the rigidity of the side member 10 can be enhanced by the cross-sectional structure formed by the upper reinforcing member 21 and the lower reinforcing member 22. By rotating the "U"-shaped cross-section, the assembly of the lower reinforcing member 22 and the upper reinforcing member 21 can include an open cross-section facing the outside of the vehicle, thereby supporting the side collision load input along the width direction of the vehicle. The side surface 22b of the lower reinforcing member 22 can be connected to the side surface 21b of the upper reinforcing member 21 by welding (e.g., spot welding).

[0062] Rib portions 22aa may be formed on the lower surface 22a of the lower reinforcement member 22. The rib portions 22aa may be formed on the lower surface 22a along the width direction of the vehicle so as to be lower than the lower surface 22a. The rib portions 22aa may be formed on the lower surface 22a at regular intervals in the longitudinal direction of the vehicle to increase the impact load that the lower surface 22a can support in the event of a side collision of the vehicle, thereby improving the rigidity of the lower surface 22a. The rib portions 22aa may be formed to extend to the side surface 22b.

[0063] A through hole 22ab passing through the lower surface 22a may be formed on the lower surface 22a of the lower reinforcing member 22. Furthermore, a through hole 22ba passing through the side surface 22b may also be formed on the side surface 22b. The through holes 22ab and 22ba formed on the lower surface 22a and the side surface 22b, respectively, can allow the electrodeposition solution to flow smoothly during the coating process and ensure that the electrodeposition solution is uniformly applied.

[0064] The inner reinforcement members 23 and 24 may be connected to the bottom surface of the upper reinforcement member 21 and the upper surface of the lower reinforcement member 22, respectively. A plurality of the inner reinforcement members 23 and 24 may be provided at regular intervals in the longitudinal direction of the vehicle. Because the upper reinforcement member 21 and the lower reinforcement member 22 are connected to each other via the inner reinforcement members 23 and 24, the upper reinforcement member 21 and the lower reinforcement member 22 are configured to prevent separation in the event of a side collision. In other words, because the upper reinforcement member 21 and the lower reinforcement member 22 are connected in the longitudinal direction of the vehicle via the inner reinforcement members 23 and 24, separation of the upper reinforcement member 21 and the lower reinforcement member 22 can be prevented in the event of a side collision.

[0065] Furthermore, the inner reinforcement members 23 and 24 may also be configured to directly support the side collision load. Since the inner reinforcement members 23 and 24 are formed as open cross sections in the width direction of the vehicle, the inner reinforcement members 23 and 24 may also support the side collision load.

[0066] The inner reinforcement members 23 and 24 may include a plurality of first inner reinforcement members 23 disposed in the longitudinal direction of the vehicle and a plurality of second inner reinforcement members 24 disposed in front of or behind the first inner reinforcement members 23 .

[0067] The first inner reinforcement member 23 may include: an upper joining portion 23a, a lower joining portion 23b, and a connecting portion 23c, wherein the upper joining portion 23a is connected to the bottom surface of the upper reinforcement member 21, the lower joining portion 23b is provided at both ends of the upper joining portion 23a in the longitudinal direction of the vehicle and is connected to the upper surface of the lower reinforcement member 22, and the connecting portion 23c connects the upper joining portion 23a and the lower joining portion 23b.

[0068] The upper coupling portion 23a may be connected to the bottom surface of the upper reinforcement member 21, that is, the bottom surface of the upper surface 21a. The upper coupling portion 23a may be formed to have a predetermined length in the longitudinal direction of the vehicle and may be connected to the upper surface 21a, thereby fastening the first inner reinforcement member 23 to the upper reinforcement member 21.

[0069] The rib portion 23aa may be formed in the upper joining portion 23a in the width direction of the vehicle so as to be lower than the upper joining portion 23a. When the first inner reinforcement member 23 is connected to the upper reinforcement member 21, the rib portion 23aa formed in the upper joining portion 23a may be located below the rib portion 21aa formed in the upper reinforcement member 21 (see FIG. Figure 9 The rib portion 21aa of the upper reinforcement member 21 includes a convex shape, and the rib portion 23aa of the upper coupling portion 23a includes a concave shape, so that when the upper coupling portion 23a is connected to the upper reinforcement member 21, the rib portions 21aa and 23a can form a cylindrical structure in the width direction of the vehicle. This can support the side collision load in the event of a side collision.

[0070] In the first inner reinforcement member 23 , through holes 23 ab may be formed in the rib portion 23 aa to allow the electrodeposition solution to smoothly flow during the coating process.

[0071] Similar to the first internal reinforcement member 23, the second internal reinforcement member 24 may include: an upper joining portion 24a, a lower joining portion 24b and a connecting portion 24c, wherein the upper joining portion 24a is connected to the bottom surface of the upper reinforcement member 21, the lower joining portion 24b is arranged at both ends of the upper joining portion 24a in the longitudinal direction of the vehicle and is connected to the upper surface of the lower reinforcement member 22, and the connecting portion 24c connects the upper joining portion 24a and the lower joining portion 24b.

[0072] The second inner reinforcement member 24 may be connected to the upper reinforcement member 21 and the lower reinforcement member 22 by welding, and similar to the first inner reinforcement member 23 , the second inner reinforcement member 24 may prevent the upper reinforcement member 21 and the lower reinforcement member 22 from being separated in the event of a side collision.

[0073] The second inner reinforcement member 24 is configured to connect the upper reinforcement member 21 and the lower reinforcement member 22 on the front side or the rear side of the first inner reinforcement member 23, which is provided as a plurality of first inner reinforcement members 23. That is, the second inner reinforcement member 24 may be located in front of the first inner reinforcement member 23 located at the frontmost position among the first inner reinforcement members 23 in the longitudinal direction of the vehicle, or the second inner reinforcement member 24 may be located behind the first inner reinforcement member 23 located at the rearmost position among the first inner reinforcement members 23 in the longitudinal direction of the vehicle.

[0074] The connection members 25 and 26 may be disposed in the longitudinal direction of the vehicle, and front and rear end portions of the connection members 25 and 26 may be connected to the upper coupling portions 23 a and 24 a of the inner reinforcement members 23 and 24 .

[0075] In the inner reinforcement members 23 and 24 , the upper coupling portions 23 a and 24 a may be connected to the bottom surface of the upper reinforcement member 21 , and thus the connection members 25 and 26 may be provided between the upper reinforcement member 21 and the inner reinforcement members 23 and 24 .

[0076] The connecting members 25 and 26 may include a first connecting member 25 connecting two first inner reinforcement members 23 positioned adjacent to each other in the longitudinal direction of the vehicle and a second connecting member 26 connecting the first inner reinforcement member 23 and the second inner reinforcement member 24 .

[0077] The first connecting member 25 can connect the two inner reinforcement members 23 and 24 arranged in the longitudinal direction of the vehicle, and can prevent the inner reinforcement members 23 and 24 from rotating or deforming in the event of a side collision of the vehicle, thereby preventing the inner reinforcement members 23 and 24 from separating from the upper reinforcement member 21 and the lower reinforcement member 22.

[0078] The first connection member 25 may be disposed between the upper reinforcement member 21 and the first inner reinforcement member 23 to connect the two inner reinforcement members 23 and 24 disposed adjacent to each other in the longitudinal direction of the vehicle.

[0079] The first connection member 25 may be connected to the upper reinforcement member 21 and the first inner reinforcement member 23 by welding.

[0080] The rib portion 25a may be formed in the first connection member 25 along the width direction of the vehicle. The rib portion 25a may be formed to be concave downward and may be located below the rib portion 21aa formed in the upper reinforcement member 21 (see FIG. Figure 9 When the first connection member 25 is connected to the upper reinforcement member 21, the rib portions 21aa and 25a formed in the upper reinforcement member 21 and the first connection member 25 may form a cylindrical structure in the width direction of the vehicle, thereby supporting a side collision load in the event of a side collision.

[0081] A through hole 25 b may be formed in the first connection member 25 to facilitate the flow of the electrodeposition solution during the coating process.

[0082] The second connecting member 26 may be formed in a similar shape to the first connecting member 25. The second connecting member 26 may be formed to have a different length from the first connecting member 25. Since the second inner reinforcement member 24 is formed in a different form from the first inner reinforcement member 23, and the distance between the second inner reinforcement member 24 and the first inner reinforcement member 23 adjacent thereto may be different from the distance provided by the first inner reinforcement member 23, the second connecting member 26 may be formed to have a different length from the first connecting member 25.

[0083] Similar to the first connecting member 25, a rib portion 26a may be formed in the second connecting member 26 along the width direction of the vehicle. Since the rib portion 26a is also located below the rib portion 21aa formed in the upper reinforcement member 21 and is formed to be concave downward, the rib portion 21aa and the rib portion 26a may also form a cylindrical structure in the width direction of the vehicle, thereby supporting the side collision load in the event of a side collision.

[0084] A through-hole 26 b may be formed through the second connection member 26 to facilitate flow of the electrodeposition solution during the coating process.

[0085] The second connection member 26 may also be connected to the bottom surface of the upper reinforcement member 21, and the upper coupling portion 23a of the first inner reinforcement member 23 and the upper coupling portion 24a of the second inner reinforcement member 24 may be connected to the bottom surface of the second connection member 26. Therefore, the second connection member 26 may be provided between the upper reinforcement member 21 and the upper coupling portion 23a, or may be provided between the upper reinforcement member 21 and the upper coupling portion 24a.

[0086] The second connection member 26 may be connected to the upper reinforcement member 21 , the first inner reinforcement member 23 , and the second inner reinforcement member 24 by welding.

[0087] The extension member 27 may be connected to the front end portion or the rear end portion of the lower reinforcement member 22. The extension member 27 may be formed to have substantially the same cross-sectional shape as the lower reinforcement member 22 and configured to extend the lower reinforcement member 22.

[0088] A side sill reinforcement member assembly 20 according to an exemplary embodiment of the present invention can be disposed within a side sill 10 of a vehicle. An upper reinforcement member 21 and a lower reinforcement member 22 can be connected to the side sill inner member 11 of the side sill 10 by welding. The side sill reinforcement member assembly 20 can be pre-assembled and then connected to the side sill inner member 11 and the inner panel 13 of the vehicle body during the assembly process of the side sill 10.

[0089] The side member reinforcement member assembly 20 may be connected to the side member inner member 11, and then the side member outer member 12 may be connected to the outer side of the assembly of the side member inner member 11 and the reinforcement member assembly 20. Thus, the side member 10 having the side member reinforcement member assembly 20 provided therein may be formed.

[0090] Since the side sill reinforcement member assembly 20 is connected to the side sill inner member 11 by welding, the required amount of work can be reduced compared to when the reinforcement member 120 made of an aluminum extruded material is applied, thereby reducing the time and cost required for vehicle production.

[0091] Furthermore, since each member of the reinforcement member assembly 20 forming the side sill is manufactured by welding metal plates such as steel plates, weight can be reduced compared to conventional thick aluminum extrusion materials, and flow of the electrodeposition solution inside can be made smoother.

[0092] The operation of the reinforcement member assembly 20 including the side sill configured as described above according to the exemplary embodiment of the present invention will be described below.

[0093] The reinforcement member assembly 20 for a side sill according to an exemplary embodiment of the present invention may be provided inside the side sill 10 .

[0094] When the vehicle is involved in a side collision, collision load may be applied to the side sill outer member 12 .

[0095] The collision load input to the side sill outer member 12 may be transferred to the reinforcement member assembly 20 for the side sill 10 .

[0096] Since the upper brace member 21 and the lower brace member 22 are connected to each other and their cross sections can be formed to face outward in the width direction of the vehicle, the upper surface 21a of the upper brace member 21 and the lower surface 22a of the lower brace member 22 can support the collision load applied thereto.

[0097] Furthermore, in the event of a side collision, since the first and second inner reinforcement members 23 and 24 prevent the upper and lower reinforcement members 21 and 22 from opening or separating, the upper and lower reinforcement members 21 and 22 can firmly support the collision load.

[0098] In addition, since the rib portions 21aa, 22aa, 23aa, 25a and 26a are respectively formed in the upper reinforcement member 21, the lower reinforcement member 22, the first inner reinforcement member 23, the first connecting member 25 and the second connecting member 26, the rib portions 21aa, 22aa, 23aa, 25a and 26a can firmly support the load from the side collision.

[0099] According to the present invention, the reinforcing member assembly for the vehicle side sill includes the above configuration and can support the collision load input through the side of the vehicle, thereby preventing the side sill from being excessively deformed.

[0100] Since the deformation of the side beam is reduced in the event of a side collision, the deformation of the vehicle compartment caused by the side collision can be reduced, thereby expanding the survival space of the occupants.

[0101] Furthermore, in an environmentally friendly vehicle such as an electric vehicle, in which a battery is provided under the floor of the vehicle, the load-bearing capacity against a side collision can be improved, thereby preventing damage to the battery due to the side collision.

[0102] When a sliding door is installed in a vehicle such as a multi-purpose vehicle (MVP) to which a sliding door is applied, the collision load can be sufficiently supported even when the cross-sectional size of the side member becomes small.

[0103] Since a thin metal sheet is used inside the side sill instead of a thick aluminum extrusion, a weight reduction of the reinforcement member assembly for the side sill can be achieved compared to a reinforcement member of an aluminum extrusion.

[0104] Furthermore, the increased gaps between the side sill reinforcement member assembly, the side sill inner member, and the side sill outer member facilitate the flow of the electrodeposition solution. Furthermore, the formation of through-holes through which the electrodeposition solution flows prevents the electrodeposition solution from accumulating or not being applied during the coating process, thereby improving coating quality and enhancing corrosion resistance.

[0105] Furthermore, since the reinforcement member assembly for the side sill is connected to the side sill inner member in a single process, the required amount of work can be reduced, and there may be no need to use expensive aluminum material for the reinforcement member, so that production costs can be reduced.

[0106] In an exemplary embodiment of the present invention, a vehicle may be referred to as a concept based on various means of transportation. In some cases, a vehicle may be interpreted as a concept based on a concept that includes not only various land vehicles traveling on roads, such as cars, motorcycles, trucks, and buses, but also various means of transportation such as airplanes, drones, ships, and the like.

[0107] For ease of explanation and precise definition in the appended claims, the terms "upper," "lower," "inner," "outer," "above," "below," "upward," "downward," "front," "back," "inside," "outside," "inwardly," "outwardly," "interior," "exterior," "inner," "exterior," "forward," and "rearward" are used to describe features of the exemplary embodiments with reference to the positions of such features as shown in the accompanying drawings. It will be further understood that the term "connect" or its derivatives refers to both direct and indirect connections.

[0108] The term "and / or" may include any combination of a plurality of related listed items or any one of a plurality of related listed items. For example, "A and / or B" includes all three cases, such as "A", "B" and "A and B".

[0109] In an exemplary embodiment of the present invention, “at least one of A and B” may mean “at least one of A or B” or “at least one of a combination of at least one of A and B.” Furthermore, “one or more of A and B” may mean “one or more of A or B” or “one or more of a combination of one or more of A and B.”

[0110] In this specification, unless otherwise stated, a singular expression includes a plural expression unless the context clearly indicates otherwise.

[0111] In exemplary embodiments of the present invention, it should be understood that terms such as “including” or “having” are intended to specify the presence of features, values, steps, operations, elements, parts, or combinations thereof described in the specification, and do not exclude the possibility of adding or existing one or more other features, values, steps, operations, elements, parts, or combinations thereof.

[0112] According to the exemplary embodiment of the present invention, components may be combined with each other to be implemented as one, or some components may be omitted.

Claims

1. A reinforcing member assembly for a side member of a vehicle, the reinforcing member assembly comprising: an upper reinforcement member formed in a longitudinal direction of the vehicle and disposed inside a side member of the vehicle; a lower reinforcement member located below the upper reinforcement member and including one side in the width direction of the vehicle connected to the upper reinforcement member in the longitudinal direction of the vehicle, the lower reinforcement member being provided inside the side sill; as well as Internal reinforcement members are connected to the bottom surface of the upper reinforcement member and the upper surface of the lower reinforcement member, respectively.

2. The reinforcing member assembly for a side member of a vehicle according to claim 1, wherein: The upper reinforcement member includes an upper surface and a side surface bent downward from the upper surface, The lower reinforcement member includes a lower surface located below an upper surface of the upper reinforcement member and a side surface, the lower surface of the lower reinforcement member being bent upward from the lower surface and connected to the side surface of the upper reinforcement member.

3. The reinforcing member assembly for a side sill of a vehicle according to claim 2, wherein: The upper reinforcement member includes a plurality of rib portions formed on an upper surface of the upper reinforcement member in a width direction of the vehicle so as to be higher than the upper surface of the upper reinforcement member, The plurality of rib portions of the upper reinforcement member are formed at intervals in a longitudinal direction of the vehicle.

4. The reinforcing member assembly for a side member of a vehicle according to claim 3, wherein: A through hole is formed in each rib portion of the upper reinforcement member so as to pass through the corresponding rib portion.

5. The reinforcing member assembly for a side sill of a vehicle according to claim 2, wherein: The lower reinforcement member includes a plurality of rib portions formed on a lower surface of the lower reinforcement member in a width direction of the vehicle so as to be lower than the lower surface of the lower reinforcement member, The plurality of rib portions of the lower reinforcement member are formed at intervals in a longitudinal direction of the vehicle.

6. The reinforcing member assembly for a side member of a vehicle according to claim 5, wherein: A through hole is formed on each of a lower surface of the lower reinforcement member and a side surface of the lower reinforcement member.

7. The reinforcing member assembly for a side member of a vehicle according to claim 1, wherein The inner reinforcement member is provided in a plurality and is arranged at regular intervals in the longitudinal direction of the vehicle.

8. The reinforcing member assembly for a side sill of a vehicle according to claim 1, wherein the inner reinforcing member comprises: an upper coupling portion connected to a bottom surface of the upper reinforcing member; a lower joining portion provided at a first end portion and a second end portion of the upper joining portion in the longitudinal direction of the vehicle and connected to an upper surface of the lower reinforcement member; as well as A connecting portion connects the upper coupling portion and the lower coupling portion.

9. The reinforcing member assembly for a side sill of a vehicle according to claim 8, wherein: The rib portion of the inner reinforcement member is formed in the upper joining portion in the width direction of the vehicle so as to be lower than the upper joining portion.

10. The reinforcing member assembly for a side sill of a vehicle according to claim 9, wherein: The rib portion of the upper reinforcement member is formed on an upper surface of the upper reinforcement member in a width direction of the vehicle so as to be higher than an upper surface of the upper reinforcement member, The rib portion of the inner reinforcement member is located below the rib portion of the upper reinforcement member.

11. The reinforcing member assembly for a side sill of a vehicle according to claim 9, wherein: A through hole is formed in the rib portion of the upper reinforcement member.

12. The reinforcing member assembly for a side sill of a vehicle according to claim 1, wherein: There are multiple internal reinforcement members. The reinforcement member assembly further comprises: A first connecting member has front and rear end portions connected to a plurality of inner reinforcing members adjacent to each other in a longitudinal direction of the vehicle.

13. The reinforcing member assembly for a side member of a vehicle according to claim 12, wherein: A rib portion is formed in the first connecting member along a width direction of the vehicle.

14. The reinforcing member assembly for a side sill of a vehicle according to claim 13, wherein: The rib portion is formed on the upper surface of the upper reinforcement member in the width direction of the vehicle so as to be higher than the upper surface of the upper reinforcement member, The rib portion of the first connection member is located below the rib portion of the upper reinforcement member.

15. The reinforcing member assembly for a side sill of a vehicle according to claim 12, wherein: The first connection member is disposed between and connected to the upper reinforcement member and the inner reinforcement member.

16. The reinforcing member assembly for a side sill of a vehicle according to claim 15, wherein: The internal reinforcement member comprises: a plurality of first inner reinforcement members spaced apart in the longitudinal direction of the vehicle; The second inner reinforcing member is disposed spaced apart from the first inner reinforcing member disposed at the frontmost or rearmost position in the longitudinal direction of the vehicle among the first inner reinforcing members.

17. The reinforcing member assembly for a side sill of a vehicle according to claim 1, wherein The upper reinforcement member and the lower reinforcement member are connected to a side member inner member of a side member.

18. The reinforcing member assembly for a side sill of a vehicle according to claim 1, further comprising: An extension member is connected to the front end portion or the rear end portion of the lower reinforcement member.

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