Vehicle body of vehicle and vehicle body connection joint

Abstract

To provide a connection joint of a vehicle making it possible to ensure the rigidity of a vehicle body and cope with various vehicle specifications.SOLUTION: A vehicle body connection joint 200 of a vehicle includes: a support body configured with a roof side part 210 extending along a roof side, a pillar part 220 extending along a pillar, and a roof cross part 230 extending along a roof cross bar; and a body part formed to encircle the roof side part 210, pillar part 220, and roof cross part 230. Roof side members of a vehicle body are connected to both ends of the roof side part 210. A pillar member of the vehicle body is connected to a lower end of the pillar part 220. A roof cross member of the vehicle body is connected to an end of the roof cross part 230.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a vehicle body and a vehicle body connection joint that ensures the rigidity of the vehicle body and is adaptable to various vehicle specifications by changing the method of connecting each member of the connection joint and the shape of the connection joint. [Background technology]

[0002] A PBV (Purpose Built Vehicle) consists of a Life Module, which forms various types of boarding and loading space in response to market needs, and a Drive Module, which is related to the actual running of the vehicle. By combining a common Drive Module with a Life Module that meets various needs, it is possible to easily produce various vehicle models, which makes it possible to respond very effectively to the market trend of small-lot production of a wide variety of products.

[0003] On the other hand, among the members included in the body of a vehicle, the roof side members of the body provided on the roof side of the vehicle, the pillar members of the body provided on the pillar side, and the roof cross members of the body provided on the roof cross side not only play a role in supporting the roof of the vehicle, but also play an important role in improving the rigidity and safety of the vehicle body. In addition, the connection joints are provided at the branching points of the roof side members, the pillar members, and the roof cross members, and can connect each member to each other.

[0004] Conventionally, each member has generally been connected to each other by flange connection or CO2 welding, or by forming a die-cast joint. However, the flange connection or CO2 welding connection method has a problem that it is difficult to connect to the outer panel because it is formed in a rectangular tubular structure, and the number of parts required for connection increases, and the die-cast joint connection method has a problem that the cost of the joint itself is high, which is disadvantageous in terms of cost competitiveness.

[0005] WeldingTherefore, there is a demand for a vehicle connection joint that ensures the rigidity of the vehicle body and is compatible with various vehicle specifications without increasing the number of parts required to connect each member to each other.

[0006] The matters described above as the background art are intended to facilitate understanding of the background of the present invention, and should not be accepted as admitting that they constitute prior art known to those having ordinary skill in the art. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] KR10-2021-0072522A Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention aims to provide a vehicle body and vehicle body connection joint in a vehicle body connection joint structure that ensures the rigidity of the vehicle body and is compatible with various vehicle specifications by changing the method in which the connection joint is connected to each member and the shape of the connection joint.

[0009] The technical problems to be solved by the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by a person having ordinary skill in the art to which the present invention pertains from the following description. [Means for solving the problem]

[0010] As a means for solving the above technical problems, the present invention provides a vehicle body connection joint including a support member consisting of a roof side portion extending along the roof side, a pillar portion extending along the pillar, and a roof cross portion extending along the roof cross, and a body portion formed to surround the roof side portion, the pillar portion, and the roof cross portion, wherein roof side members of the vehicle body are connected to both ends of the roof side portion, a pillar member of the vehicle body is connected to the lower end of the pillar portion, and a roof cross member of the vehicle body is connected to the end of the roof cross portion.

[0011] For example, the roof side portion, pillar portion, and roof cross portion of the support body may be arranged so as to be perpendicular to one another, and the ends of the pillar portion and roof cross portion may be formed so as to be in surface contact with one surface of the roof side portion.

[0012] For example, both ends of the roof side portion, the lower end of the pillar portion, and the end of the roof cross portion may be formed to protrude outward relative to the respective end portions projected onto the surfaces of the roof side portion, pillar portion, and roof cross portion of the body portion.

[0013] For example, the roof side portion and the pillar portion may be connected to each member by being inserted into a roof side member of the vehicle body and a pillar member of the vehicle body, respectively.

[0014] For example, adhesive may be applied to the locations where the roof side portion and the pillar portion are inserted and coupled to the roof side member and the pillar member of the vehicle body, respectively.

[0015] For example, both ends of the roof side portion and the ends of the roof cross portion may be fixed in the vertical direction to the roof side members and roof cross members of the vehicle body, respectively, by bolting, and the lower end of the pillar portion may be fixed in the width direction of the vehicle body to the pillar member of the vehicle body by bolting.

[0016] For example, the body portion may be formed in a curved shape that bends inward so that the ends projected onto the surfaces of the roof side portion, the pillar portion, and the roof cross portion are connected to each other.

[0017] For example, the body portion may be comprised of a plurality of reinforcing ribs, each of which may have a plurality of through holes formed at regular intervals to define an internal pattern.

[0018] For example, a downwardly recessed accommodation groove may be formed in the upper surface of the body portion, and the roof cross member may be supported in the accommodation groove and connected to the body portion by bolts fastened in the vertical direction.

[0019] For example, the support may be secured to a surface of the support with the surface being laser textured and the body portion surrounding the support.

[0020] A vehicle body is constructed as claimed in claim 1, characterized in that a plurality of vehicle body connection joints are provided, each connection joint being arranged along the roof side of the vehicle and connecting to the roof side member, pillar member, and roof cross member of the vehicle body.

[0021] For example, the vehicle may further include an outer panel that is provided on the outside of the roof side member, pillar member, and roof cross member of the vehicle body and covers the outside of the vehicle body, and the outer panel may be joined and fixed to the roof side member by an adhesive applied to the point where it joins with the roof side member of the vehicle body.

[0022] For example, the outer panel may be formed with a fixing portion protruding inward, and the fixing portion may be inserted into one side of the pillar verb of the vehicle body to fix the outer panel to the pillar verb. Effect of the Invention

[0023] According to the vehicle body and vehicle body connection joint of the present invention, by changing the manner in which the connection joint is connected to each member and the shape of the connection joint in the vehicle body connection joint structure, it is possible to provide a vehicle body and vehicle body connection joint that ensures the rigidity of the vehicle body and is capable of accommodating a variety of vehicle specifications.

[0024] The effects obtained by the present invention are not limited to those described above, and other effects not mentioned will be clearly understood by a person having ordinary knowledge in the technical field to which the present invention pertains from the following description. [Brief description of the drawings]

[0025] [Figure 1] 1 is a diagram showing a vehicle body according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a diagram showing in detail each component of the vehicle body of the vehicle according to the embodiment of the present invention. [Diagram 3] FIG. 2 illustrates a vehicle body connection joint according to one embodiment of the present invention. [Figure 4] 3 is a diagram showing a connection structure between a connection joint and a roof side member in region C of FIG. 2. [Diagram 5] 3 is a diagram showing a connection structure between a connection joint and a roof side member in region C of FIG. 2. [Figure 6] 3 is a diagram showing a connection structure between a connection joint and a pillar member in region D of FIG. 2. [Figure 7] 3 is a diagram showing a connection structure between a connection joint and a pillar member in region D of FIG. 2. [Figure 8] 3 is a diagram showing a connection structure between a lower joint and a pillar member in region E of FIG. 2. [Figure 9] 3 is a diagram showing a connection structure between a lower joint and a pillar member in region E of FIG. 2. [Figure 10] 1 is a diagram showing a fixing structure between a pillar member and an outer panel according to one embodiment of the present invention. FIG. [Figure 11]FIG. 2 shows that the surface of a support according to one embodiment of the present invention has been laser textured. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. Regardless of the drawing numbers, the same or similar components are designated by the same reference numbers, and duplicate descriptions thereof will be omitted.

[0027] The suffixes "module" and "section" for components used in the following description are given or mixed together only to facilitate the writing of the specification, and do not have any distinct meanings or roles in themselves.

[0028] In describing the embodiments disclosed herein, if it is determined that a detailed description of related known technologies may obscure the gist of the embodiments disclosed herein, the detailed description will be omitted. In addition, the attached drawings are provided for easy understanding of the embodiments disclosed herein, and the technical ideas disclosed herein are not limited by the attached drawings, but should be understood to include all modifications, equivalents, or alternatives within the ideas and technical scope of the present invention. Terms including ordinal numbers such as first, second, etc. may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another.

[0029] When a component is referred to as being "coupled" or "connected" to another component, it should be understood that it may be directly coupled or connected to the other component, but that there may also be other components between them. On the other hand, when a component is referred to as being "directly coupled" or "directly connected" to another component, it should be understood that there are no other components between them.

[0030] The singular expression includes the plural expression unless the context clearly dictates otherwise.

[0031] As used herein, terms such as "comprise" or "have" are intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are to be understood as not precluding the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0032] According to an embodiment of the present invention, in a vehicle body connecting joint structure, it is proposed to change the manner in which the connecting joint is connected to each member and the shape of the connecting joint.

[0033] Before describing a vehicle body connection joint according to the present invention, a vehicle body including a connection joint will be described.

[0034] 1 and 2 are diagrams showing a vehicle body according to an embodiment of the present invention. Fig. 1 and Fig. 2 mainly show components related to this embodiment, and it goes without saying that an actual vehicle body may include fewer or more components than those shown.

[0035] 1 and 2, the vehicle body may include a roof side member 110, a pillar member 120, and a roof cross member 130. The roof side member 110 extends in the length direction of the vehicle along the roof side, and the pillar member 120 extends in the up-down direction of the vehicle along the pillar of the vehicle. The roof cross member 130 extends in the width direction of the vehicle along the roof cross. Each member may be provided in a plurality of members so that the left and right sides of the vehicle body are symmetrical and connected to each other, and the members may be arranged at right angles to each other via a connection joint 200 at the upper part of the vehicle body. The pillar member 120 extending in the up-down direction of the vehicle may be connected to the lower frame via a lower joint 300 at the lower part of the vehicle body. The vehicle body connection joint 200 described later is configured to be adjustable by cutting the length of each member in a shared state, so that it can respond to different specifications of the vehicle. In the present invention, the description will be given based on the A region, which is one side of the symmetrical regions.

[0036] The vehicle body connection joint 200 will now be described with reference to FIG.

[0037] FIG. 3 is a diagram illustrating a vehicle body connection joint 200 according to one embodiment of the present invention.

[0038] Referring to FIG. 3, the vehicle body connection joint 200 may be composed of a support and a body part. The support may also be composed of a roof side part 210, a pillar part 220, and a roof cross part 230. The roof side part 210 may extend along the roof side, the pillar part 220 may extend along the pillar, and the roof cross part 230 may extend along the roof cross. The roof side part 210, the pillar part 220, and the roof cross part 230 constituting the support may be connected to each other at their ends to form one support structure, and each component may be arranged to be perpendicular to each other. In this case, the ends of the pillar part 220 and the roof cross part 230 are formed to be in surface contact with one surface of the roof side part 210, thereby ensuring the rigidity of the support.

[0039] Also, the body part is formed to surround the support body composed of the roof side part 210, the pillar part 220, and the roof cross part 230. At this time, in order to ensure the rigidity of the connection joint 200, the support body and the body part may be formed of a metal material or a composite material. Here, the composite material may be a 3D printing material such as a plastic material, an aluminum material, and a polyethylene (PE) material, but these are merely examples and are not necessarily limited to these.

[0040] Regarding the shape of the body part, the body part may be formed in a curved shape that is bent inward so that each end projected on the surface of the roof side part 210, the pillar part 220 and the roof cross part 230 is connected to each other. In this way, the curved shape that protrudes and bends inward of the connection joint 200 can reinforce the step when each member is connected to the connection joint 200 and improve the transmission of the load. In addition, the body part may be composed of a plurality of reinforcing ribs. Each reinforcing rib that constitutes the body part may have a plurality of through holes formed at regular intervals to form an internal pattern. With such a structure, it is possible to achieve cost reduction and weight reduction of the body part.

[0041] An accommodation groove B may be formed at the extended end of the upper surface of the body part connected to the roof cross member 130 side in Fig. 3. The accommodation groove B is formed in a shape that is concave downward on the upper surface of the body part, and the roof cross member 130 can be connected to the body part by being bolted in the vertical direction while being supported by the accommodation groove B. The flange part 203 can restrict lateral movement on the inner surface of the accommodation groove B while seated in the accommodation groove B of the roof cross member 130, thereby increasing the roof strength against a collision in the front-rear direction of the vehicle.

[0042] In addition, both ends of the roof side portion 210, the lower end of the pillar portion 220, and the end of the roof cross portion 230 may be formed to protrude outward from the respective ends extending by being projected onto the surfaces of the roof side portion 210, the pillar portion 220, and the roof cross portion 230 of the body portion. This allows the roof side portion 210, the pillar portion 220, and the roof cross portion 230 to be connected to the respective ends so as to be combined and fastened to the roof side member 110, the pillar member 120, and the roof cross member 130, respectively.

[0043] The connection method between each member and the connection joint 200 will be described with reference to FIGS.

[0044] 4 and 5 are diagrams showing the connection structure between the connection joint 200 and the roof side member 110 in area C of FIG. 2, and FIGS. 6 and 7 are diagrams showing the connection structure between the connection joint 200 and the pillar member 120 in area D of FIG. 2.

[0045] 4 and 5, the roof side portion 210 may be connected to the roof side member 110 of the vehicle body. More specifically, both ends of the roof side portion 210 may be fixed by bolt fastening in a state where they are inserted and connected to the roof side member 110 of the vehicle body. An overlapping portion may be formed between the roof side member 110 and the roof side portion 210, and the roof side portion 210 may be fastened in the vertical direction of the overlapping portion. A nut 252 is fastened to the lower surface of the roof side member 110, and a bolt 251 is fastened downward to the upper surface of the roof side member 110, and the roof side portion 210 is fastened in the vertical direction of the vehicle body. In addition, the outer panel 400 may be formed with a recessed region E bent inward, and the recessed region E may be connected to the roof side member 110 by an adhesive containing an epoxy 241 material or a urethane 242 material.

[0046] At this time, epoxy 241 or urethane 242 is applied to the portion between the roof side member 110 and the roof side portion 210 where they are plugged together, thereby further increasing the connection rigidity. Unlike the epoxy 241 material, the urethane 242 material has elasticity, so the urethane 242 may be applied to the portion where the tolerance is applied, and the epoxy 241 may be applied to the portion where the roof side member 110 and the roof side portion 210 contact each other. In addition, the structure in which the roof cross portion 230 and the roof cross member 130 of the vehicle body are connected by bolt fastening is the same as the connection structure of the roof side portion 210 and the roof side member 110 of the vehicle body. By such a plug-in connection and bolt fastening structure, the impact force in the side collision of the vehicle is transmitted to multiple members, thereby increasing the bending rigidity of the vehicle body.

[0047] 6 and 7, the pillar part 220 may be connected to the pillar member 120 of the vehicle body. More specifically, the lower end of the pillar part 220 may be fixed to the pillar member 120 of the vehicle body by bolt fastening. A hollow part 121 is formed on the outer side of the pillar member 120, and a first fastening hole 122 is formed penetrating the hollow part 121 and the pillar member 120. A bolt 251 is fastened to the outer surface of the pillar member 120, and a nut 252 is fastened to the inner surface to connect the pillar member 120 and the pillar member 220, penetrating the pillar member 220 in the width direction of the vehicle body.

[0048] An overlapping portion may be formed between the pillar member 120 and the pillar portion 220, and the pillar member 120 and the pillar portion 220 may be fastened in the vertical direction of the overlapping portion. At this time, the connection rigidity can be further increased by applying an adhesive to the portion between the pillar member 120 and the pillar portion 220 where they are plugged together. By applying the adhesive to at least two of the four surfaces where the pillar member 120 and the pillar portion 220 contact each other, rigidity against deformation can be ensured. Such plugging and bolt fastening structure allows the impact force in a side collision of the vehicle to be transmitted to multiple members, thereby increasing the rigidity of the vehicle body. The above-mentioned hollow portions 111 and 121 are formed with multiple through holes and are formed to cover the outer sides of the roof side member 110 and the pillar member 120, thereby increasing the durability of each member against external impact.

[0049] 8 and 9 are diagrams showing a connection structure between the lower joint 300 and the pillar member 120 in the region E of FIG.

[0050] 8 and 9, the lower part of the pillar member 120 may be inserted into the lower joint 300 and bolted in the width direction of the vehicle body. The lower joint 300 is formed with a second fastening hole 301 penetrating the hollow part 121 and the pillar member 120, and a bolt 251 is inserted into the first fastening hole 122 and a nut 252 is fastened to the inner surface thereof to penetrate and fasten the pillar part 220. This bolt fastening structure allows the impact force in the event of a side collision of the vehicle to be transmitted to multiple members, thereby improving the connectivity between the roof part of the vehicle body and the lower frame.

[0051] FIG. 10 is a diagram showing a fixing structure between the pillar member 120 and the outer panel 400 according to one embodiment of the present invention.

[0052] 10, the pillar member 120 and the outer panel 400 may be fixed to each other by plug-in connection. The outer panel 400 is formed with a fixing portion 410 protruding inward, and the fixing portion 410 is matched with a space between the plug-in portions 125 recessed inwardly of the pillar member 120 of the vehicle body, and the fixing portion 410 and the plug-in portion 125 may be fixed to the pillar member 120 by applying urethane 242 or epoxy 241 to the portion where the fixing portion 410 and the plug-in portion 125 come into contact with each other in a state where the fixing portion 410 and the plug-in portion 125 are matched. With this plug-in connection structure, when an impact force is applied to the outer panel 400, the impact force for a side collision can be transmitted to multiple members, and the connection rigidity between the pillar member 120 and the outer panel 400 can be improved.

[0053] FIG. 11 is a diagram showing a surface of a support according to one embodiment of the present invention that has been laser textured.

[0054] 11, the surface of the support may be laser textured. This is configured so that the body part and the surface of the support can be easily fixed to each other while surrounding the support. In this case, the surface of the support may maintain a certain distance in consideration of deformation due to heat during the laser texture treatment.

[0055] According to the embodiment of the present invention described above, by changing the manner in which the connection joint is connected to each member in the vehicle body connection joint structure and the shape of the connection joint, it is possible to provide a vehicle body and vehicle body connection joint that ensures the rigidity of the vehicle body and is compatible with a variety of vehicle specifications.

[0056] While particular embodiments of the present invention have been illustrated and described, it will be obvious to those skilled in the art that various modifications and variations of the present invention can be made without departing from the spirit and scope of the present invention as defined by the following claims. [Explanation of symbols]

[0057] 110: Roof side member 111, 121: Hollow part 120: Pillar Menba 122: 1st fastening hole 125: Insertion part 130: Roof cross member 200: Connection joint 203: Flange part 210: Roof side part 220: Pillar section 230: Roof cloth section 241:Epoxy 242: Urethane 251: Bolt 252: Nut 300: Lower joint 301:Second fastening hole 400: Outer panel 410: Fixed part

Claims

1. A support body including a roof side portion extending along the roof side, a pillar portion extending along the pillar, and a roof cross portion extending along the roof cross; a body portion formed so as to surround the roof side portion, the pillar portion, and the roof cross portion; A vehicle body connection joint, characterized in that a roof side member of the vehicle body is connected to each end of the roof side portion, a pillar member of the vehicle body is connected to the lower end of the pillar portion, and a roof cross member of the vehicle body is connected to the end of the roof cross portion.

2. The vehicle body connection joint of claim 1, characterized in that the roof side portion, pillar portion, and roof cross portion of the support body are arranged perpendicular to each other, and the ends of the pillar portion and the roof cross portion are formed so as to be in surface contact with one surface of the roof side portion.

3. The vehicle body connection joint of claim 1, characterized in that both ends of the roof side portion, the lower end of the pillar portion, and the end of the roof cross portion are formed to protrude outward from each end projected onto the surface of the roof side portion, pillar portion, and roof cross portion of the body portion.

4. 2. The vehicle body connection joint according to claim 1, wherein the roof side portion and the pillar portion are connected to the roof side member and the pillar member of the vehicle body by being inserted into the roof side member and the pillar member of the vehicle body, respectively.

5. 5. The vehicle body connection joint according to claim 4, wherein an adhesive is applied to the portions between where the roof side portion and the pillar portion are inserted and connected to the roof side member and the pillar member of the vehicle body, respectively.

6. A vehicle body connection joint as described in claim 1, characterized in that both ends of the roof side portion and the ends of the roof cross portion are fixed to roof side members and roof cross members of the vehicle body in the vertical direction by bolts, respectively, and the lower end of the pillar portion is fixed to the pillar member of the vehicle body in the width direction of the vehicle body by bolts.

7. The vehicle body connection joint of claim 1, wherein the body portion is formed in a curved shape bent inward so that each end portion projected onto the surface of the roof side portion, the pillar portion, and the roof cross portion is connected to each other.

8. 2. The vehicle body connection joint according to claim 1, wherein the body portion is composed of a plurality of reinforcing ribs, each reinforcing rib having a plurality of through holes formed at regular intervals to form an internal pattern.

9. The vehicle body connection joint of claim 1, characterized in that a downwardly recessed accommodating groove is formed on the upper surface of the body portion, and the roof cross member is supported in the accommodating groove and bolted in the vertical direction to connect to the body portion.

10. 2. The vehicle body connection joint according to claim 1, wherein the support has a surface that is laser textured, and the body portion is fixed to the surface of the support with the body portion surrounding the support.

11. A vehicle body comprising a plurality of vehicle body connection joints as described in claim 1, each connection joint being arranged along the roof side of the vehicle and connecting to a roof side member, a pillar member, and a roof cross member of the vehicle body.

12. The vehicle further includes an outer panel provided on the outer side of the roof side member, pillar member, and roof cross member of the vehicle body to cover the outer side of the vehicle body, 12. The vehicle body according to claim 11, wherein the outer panel is joined and fixed to the roof side member by an adhesive applied to a portion of the vehicle body where the outer panel is joined to the roof side member.

13. The vehicle body according to claim 11, wherein the outer panel is formed with a fixing portion protruding inward, and the fixing portion is inserted into one side of the pillar verb of the vehicle body, thereby fixing the outer panel to the pillar verb.

Images