Vehicle body

Abstract

A vehicle body of a vehicle includes a pair of side sill members extending in a length direction of the vehicle, a plurality of cross sill members connecting the pair of side sill members to each other in a width direction of the vehicle, a plurality of cross floor sill members coupled to upper ends of the pair of side sill members, extending in a lateral direction of the side sill members, and spaced apart from each other in a front-rear direction, and a plurality of side connecting sill members extending in the length direction of the vehicle and connecting end portions of the cross floor sill members to each other.

Description

TECHNICAL FIELD

[0001] The present invention relates to a vehicle body of a vehicle. BACKGROUND

[0002] Generally, a vehicle body of a vehicle should be designed such that various components in the vehicle are installed in the vehicle body, and when a collision impact is applied to the vehicle, the collision impact is effectively absorbed, thereby protecting passengers in the vehicle from the collision impact.

[0003] A conventional vehicle requires a space to install an engine or a battery and a space to install a wheel cover for installing a wheel of the vehicle, a suspension device provided at the wheel, a steering device connecting the wheels to each other, a driving device for transmitting a driving force, etc. Therefore, since the wheel cover for installing the wheel, the suspension device provided at the wheel, the steering device connecting the wheels to each other, the driving device for transmitting the driving force, etc. occupy a considerable space, the vehicle body should be designed to provide sufficient space to accommodate the components and absorb an impact applied to the vehicle. In addition, as the number of related components increases, the process of manufacturing and assembling the vehicle body of the vehicle becomes more complicated, and the time required to perform the process also increases.

[0004] In recent years, an in-wheel system in which a driving unit, a steering unit, a reduction gear, etc. are installed has been developed. In the in-wheel system, since each wheel does not need to be connected to each other, the vehicle body also has to be designed differently from the conventional vehicle. Therefore, when the vehicle adopts the in-wheel system, there is a need to develop a vehicle body capable of providing a space for a wheel housing, securing sufficient rigidity of the vehicle body, and simplifying the process of manufacturing and assembling the vehicle body.

[0005] The details of the background described herein are only for the purposes of enhancing an understanding of the present invention and should not be interpreted as an acknowledgement that the prior art known to those skilled in the art prior to the filing date of this application is accepted. SUMMARY

[0006] The present invention relates to a vehicle body of a vehicle. Particular embodiments of the present invention relate to a vehicle body of an in-wheel platform vehicle in which a side cross member, a cross cross member, a cross floor cross member, and a side connecting cross member are coupled to each other to define a floor of the vehicle and a space for accommodating a wheel of the vehicle, and are connected to at least two damper housings located above the wheel via a support member.

[0007] Therefore, embodiments of the present invention can solve the problems in the art, and embodiments of the present invention provide a vehicle body of an in-wheel platform vehicle in which a side cross member, a cross cross member, a cross floor cross member, and a side connecting cross member are coupled to each other to define a floor of the vehicle and a space for accommodating a wheel of the vehicle, and are connected to at least two damper housings located above the wheel via a support member.

[0008] Embodiments of the present application provide a vehicle body of a vehicle, including: a pair of side girder members extending in a length direction of the vehicle; at least two cross girder members connecting the pair of side girder members to each other in a width direction of the vehicle; at least two cross floor girder members coupled to upper ends of the pair of side girder members, extending in a lateral direction of the side girder members, and spaced apart from each other in a front-rear direction; and side connecting girder members each extending in the length direction of the vehicle and connecting end portions of the at least two cross floor girder members to each other.

[0009] Each of the side girder members, the cross girder members, the cross floor girder members, and the side connecting girder members can be configured to extend in the length direction and be closed at an end portion or a side wall thereof, such that the side girder members, the cross girder members, the cross floor girder members, and the side connecting girder members are coupled to each other in a state of surface contact between closed surfaces.

[0010] Each of the side girder members, the cross girder members, the cross floor girder members, and the side connecting girder members can be configured to have an internal space therein and extend in the length direction, and can be open at one surface thereof, such that the side girder members, the cross girder members, the cross floor girder members, and the side connecting girder members are coupled to each other by a tool introduced into the internal space.

[0011] Each of the cross girder members can be coupled to a side wall of one side girder member at one end thereof and to a side wall of the remaining one side girder member at the remaining end thereof to support the pair of side girder members at a position between the pair of side girder members.

[0012] Each of the cross floor girder members can be coupled to an upper surface of the side girder member at both end portions thereof, or can extend outward of the side girder member and can be coupled to the upper surface of the side girder member at a plurality of points between both ends thereof.

[0013] When each of the cross floor girder members extends outward of the side girder member, an end portion of the cross floor girder member can be coupled to an upper surface of the side connecting girder member.

[0014] Each of the side girder members can be longer than a corresponding side connecting girder member, such that a wheel of the vehicle is positioned in a space defined between an end portion of the side girder member and an end portion of the side connecting girder member.

[0015] The vehicle body can further include at least two damper housings supporting upper ends of dampers connected to wheels of the vehicle while covering the dampers, and each of the damper housings can provide a support member at a lower end thereof and can be supported by the at least two cross floor girder members via the support member.

[0016] The lower end of the support member can be coupled to the upper surface of the cross floor beam member at one end of the cross floor beam member or at a point of the cross floor beam member that is coupled to a corresponding one of the side beam members or a corresponding one of the side connecting beam members.

[0017] The upper end of the support member can be coupled to a corner of the shock absorber housing that faces the interior of the vehicle, and the support member extends downward while being inclined at a predetermined slope along the outer side of the shock absorber housing, and the lower end of the support member can be coupled to the upper surface of the cross floor beam member.

[0018] The front or rear of a pair of side beam members can be provided with a front lower beam member or a rear lower beam member connected thereto, the front lower beam member or the rear lower beam member being curved upward to the outer side of the side beam members, and coupled to the lower ends of the two shock absorber housings.

[0019] Two lateral sides of the at least two cross floor beam members can be respectively provided with a cross lower beam member, each cross lower beam member connecting the end portions of the at least two cross floor beam members to each other, each cross lower beam member being curved upward to the outer sides of the at least two cross floor beam members to be coupled to the side connecting beam members and the support member, and the lower end thereof being coupled to the lower ends of the two shock absorber housings located at the front and rear sides of the vehicle.

[0020] The length of the cross beam members or the cross floor beam members can vary according to the overall width of the vehicle, and the length of the side beam members or the side connecting beam members can vary according to the overall length of the vehicle.

[0021] The side beam members, the cross beam members, the cross floor beam members, and the side connecting beam members can be coupled to each other by bolts. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and other objects, features and other advantages of the embodiments of the present application will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0023] Figure 1 is a view showing a state in which various members in a vehicle body of a vehicle according to an embodiment of the present application are coupled to each other;

[0024] Figure 2 is a view showing an end portion of each member and a portion in which various members in a vehicle body of a vehicle according to an embodiment of the present application are coupled to each other;

[0025] Figure 3A and Figure 3B is a view showing a state in which various members in a vehicle body of a vehicle according to an embodiment of the present application are coupled to each other through an open surface;

[0026] Figure 4is a view showing a state in which various members in a vehicle body of a vehicle according to an embodiment of the present application are coupled to a damper housing; and

[0027] Figure 5 is a view showing a state in which various members in a vehicle body of a vehicle according to an embodiment of the present application are coupled to each other to form a floor of a finished vehicle body. DETAILED DESCRIPTION

[0028] Reference will now be made in detail embodiments of the application, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0029] Figure 1 is a view showing a state in which various members in a vehicle body of a vehicle according to an embodiment of the present application are coupled to each other. Figure 2 is a view showing a state in which various members in a vehicle body of a vehicle according to an embodiment of the present application are coupled to each other. Figure 3A and Figure 3B is a view showing a state in which various members in a vehicle body of a vehicle according to an embodiment of the present application are coupled to each other. Figure 4 is a view showing a state in which various members in a vehicle body of a vehicle according to an embodiment of the present application are coupled to each other. Figure 5 is a view showing a state in which various members in a vehicle body of a vehicle according to an embodiment of the present application are coupled to each other to form a floor of a finished vehicle body.

[0030] A vehicle body according to an embodiment of the present application includes a pair of side girder members 100 extending in a length direction of a vehicle, at least two cross girder members 200 connecting the pair of side girder members 100 to each other in a width direction of the vehicle, at least two cross floor girder members 300 coupled to upper ends of the pair of side girder members 100, extending in a transverse direction of the side girder members 100, and spaced apart from each other in a front-rear direction, and side connecting girder members 400 each extending in the length direction of the vehicle and connecting end portions of the at least two cross floor girder members 300 to each other.

[0031] Unlike a conventional vehicle, the vehicle body of the vehicle according to the embodiment of the present application is intended to be applied to a vehicle employing an in-wheel system, and does not require a drive shaft or a steering device to be connected between the respective wheels. Thus, the upper end of each wheel of the vehicle is provided with a damper and a damper housing, so that the damper housing protects the wheel of the vehicle and the damper located above the wheel. The respective members 100, 200, 300, and 400 are connected to each other to form a floor of the vehicle. Each side of the floor is coupled to the damper housing through a support member to increase the coupling rigidity between the floor and the damper housing, and to ensure the rigidity and proper load distribution of the vehicle when a collision occurs.

[0032] In particular, a pair of side beam members 100 is provided in the length direction of the vehicle to increase the collision rigidity when a front or rear collision of the vehicle occurs. At least two cross beam members 200 are provided between and connected to the pair of side beam members 100 to support the pair of side beam members 100 and to disperse an impact and increase the lateral collision rigidity of the vehicle when a lateral collision occurs. At least two cross floor members 300 are provided across the side beam members 100 at the upper end of the side beam members 100 and are coupled to the side beam members 100 to disperse an impact and increase the lateral collision rigidity of the vehicle when a lateral collision occurs. In addition, side connecting beam members 400 are also provided between and coupled to the cross floor members 300 to increase the collision rigidity of the vehicle when a front or rear collision occurs. As a result, since the respective members are coupled to each other to define a floor of the vehicle, the load of the vehicle can be supported, an impact applied to the vehicle can be effectively absorbed and dispersed, and the collision rigidity of the vehicle can be ensured.

[0033] Each of the side beam members 100, the cross beam members 200, the cross floor members 300, and the side connecting beam members 400 can be configured to extend in the length direction and can be closed at the end or the side wall thereof. Thus, the respective members can be coupled to each other in a state of surface contact through the closed surface thereof. Alternatively, each of the side beam members 100, the cross beam members 200, the cross floor members 300, and the side connecting beam members 400 can be configured to have an internal space and extend in the length direction, and can be open at one surface. Thus, the respective members can be coupled to each other using a tool introduced into the internal space.

[0034] In particular, each of the side beam members 100, the cross beam members 200, and the side connecting beam members 400 can be configured to have an open cross-section at one surface thereof, so that the members can be held in surface contact with and coupled to each other using a tool introduced through the open surface by a bolt or the like. Meanwhile, the cross floor beam members 300 serve to support a lateral load of the vehicle. Here, since the lateral side of the vehicle has a relatively small space to absorb an impact compared to the front or rear of the vehicle, each of the cross floor beam members 300 can be configured to have a closed cross-section rather than an open cross-section to increase a collision rigidity. Since each of the members is configured to have a closed surface at an end thereof to increase a rigidity of the member and to be easily held in surface contact with and coupled to each other by a bolt or the like, sufficient coupling rigidity can be secured. As a result, when the members are coupled to each other, sufficient coupling rigidity between the members can be secured while maintaining a rigidity of the vehicle itself, and a person or a robot is allowed to easily and conveniently assemble the members in the assembly process.

[0035] Each of the cross beam members 200 can be coupled to a side wall of one side beam member 100 at one end thereof and to a side wall of the other side beam member 100 at the other end thereof to support the two side beam members 100 at a position between the two side beam members 100. Referring to Figure 3A and Figure 3B , each of the cross beam members 200 is coupled to the two side beam members 100 in a manner shown in Figure 3A to connect the two side beam members 100 to each other, thereby distributing a load to the two side beam members 100 and increasing a collision rigidity at a lateral side collision.

[0036] Each of the cross floor beam members 300 can be coupled to an upper surface of the side beam member 100 at an end thereof, or can extend to an outer side of the side beam member 100 and can be coupled to the upper surface of the side beam member 100 at a plurality of points between the ends. When each of the cross floor beam members 300 extends to the outer side of the side beam member 100, an end of the cross floor beam member 300 can be coupled to an upper surface of the side connecting beam member 400. Each of the side beam members 100 is longer than the side connecting beam member 400, and a wheel can be located in a space between an end of the side beam member 100 and an end of the side connecting beam member 400.

[0037] Specifically, since the transverse floor truss member 300 is disposed on the upper surface of the side truss member 100, the connection rigidity and impact rigidity between the members can be increased, and the load can be distributed. In particular, since the transverse floor truss members 300 located at the front and rear sides of the vehicle are shorter, while the intermediate transverse floor truss member 300 is longer, a space is defined between the shorter transverse floor truss member 300 and the longer intermediate transverse floor truss member 300 for accommodating the wheel or wheel housing of a vehicle with an in-wheel system. The space must be large enough to allow the wheel of the in-wheel system to rotate 360 ​​degrees.

[0038] Reference Figure 3B When the transverse floor truss member 300 extends outward toward the side truss member 100 and connects to the open surface of the side truss member 100 at multiple points between its two ends, the member can be in the following manner: Figure 3B They are connected to each other in the manner shown. Here, the upper surface of the connecting portion of the transverse floor truss member 300 can be... Figure 3B The support member, which has an open cross-section, is connected to the housing of the vibration damper as shown.

[0039] Figure 4 This is a view illustrating the connection of various components in the vehicle body of a vehicle according to an embodiment of the present invention to shock absorber housings. The vehicle body of the vehicle according to an embodiment of the present invention further includes at least two shock absorber housings 600, which cover and support the upper ends of the shock absorbers connected to the wheels. The lower end of each shock absorber housing 600 may be provided with a support member 500, and may be supported by at least two transverse floor truss members 300 via the support member 500. The lower end of the support member 500 may be connected to the upper surface of the transverse floor truss member 300 at one end of the transverse floor truss member 300 or at the point where the transverse floor truss member 300 is connected to the side truss member 100 or the side connecting truss member 400.

[0040] In particular, the upper end of the support member 500 can be coupled to the corner of the damper housing 600 facing the interior of the vehicle among the four corners of the damper housing 600. The support member 500 can extend downward while being inclined in the outer side direction of the damper housing 600 at a predetermined slope, and the lower end thereof can be coupled to the upper surface of the cross floor beam member 300. Since the support member 500 secures the maximum space between the cross floor beam members 300 and the upper end thereof supports the damper housing 600, the wheels of the wheel-in system vehicle can normally rotate and move under the damper housing 600. In order for the support member 500 to stably support the damper housing 600, preferably, at least two cross floor beam members 300 are located in the same plane. Further, by standardizing the left-right or front-rear width (A or B) of the space defined by the at least two cross floor beam members 300 or changing the left-right or front-rear width (A or B), even when the same wheel is used for different kinds of vehicles, the vehicle body can be easily manufactured, and the vehicle bodies of various vehicles having various designs can be easily manufactured.

[0041] Figure 5 is a view showing that various members in the vehicle body of the vehicle according to an embodiment of the present application are coupled to each other to form a finished vehicle body. The front or rear of a pair of side beam members 100 is provided with a front or rear lower beam member 700 connected thereto. The front or rear lower beam member 700 can be bent upward to the outside of the side beam member 100, and can be coupled to the lower end of two damper housings 600. Through the front or rear lower beam member 700, the coupling rigidity between the side beam member 100 and the damper housing 600 can be increased, the collision rigidity of the vehicle body of the vehicle when a front, rear, or lateral side collision occurs can be increased, and the impact can be dispersed to the various members.

[0042] Both lateral sides of the at least two cross floor beam members 300 can be respectively provided with a lateral side lower beam member 800 each connecting the end portions of the at least two cross floor beam members 300 to each other. Each lateral side lower beam member 800 can be bent upward to the outside of the at least two cross floor beam members 300, and can be coupled to the side connection beam member 400 and the support member 500. The end portion of each lateral side lower beam member 800 can be coupled to the lower end of the front or rear damper housing 600. Through the lateral side lower beam member 800, the coupling rigidity between the at least two cross floor beam members 300, the side connection beam member 400, the support member 500, and the damper housing 600 can be increased, the collision rigidity of the vehicle body of the vehicle when a front, rear, or lateral side collision occurs can be increased, and the impact can be dispersed to the various members.

[0043] The length of the cross beam member 200 or the cross floor beam member 300 can vary according to the overall width of the vehicle, and the length of the side beam member 100 or the side connecting beam member 400 can vary according to the overall length of the vehicle. Accordingly, the vehicle body according to the embodiment of the present application is applicable to vehicles including various platforms by varying the length or shape of each member, so that vehicles having various designs can be easily and conveniently manufactured or assembled.

[0044] Further, the side beam member 100, the cross beam member 200, the cross floor beam member 300, and the side connecting beam member 400 can be fastened and coupled to each other by bolts. Accordingly, since each member is configured to have the same shape and to be assembled with each other rather than having a respective shape, there is an advantage in terms of assembly and production of the vehicle. Further, since each member is assembled with each other in a convenient manner such as a bolt by the open section or the closed section of the member, a vehicle having various shapes can be quickly assembled or manufactured in a short time.

[0045] As is apparent from the above description, the vehicle body of the vehicle according to the embodiment of the present application, in a wheel-in-platform vehicle, a side beam member, a cross beam member, a cross floor beam member, and a side connecting beam member are coupled to each other to form a floor of the vehicle and a space for accommodating wheels of the vehicle, and are connected to at least two damper housings located above the wheels via a support member.

[0046] Although the preferred embodiments of the present application have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the present application disclosed in the accompanying claims.

Claims

1. A vehicle body, comprising: A pair of side truss members extend along the length of the vehicle; Multiple transverse truss members connect the pair of side truss members to each other in the width direction of the vehicle; Multiple horizontal floor truss members are connected to the upper ends of the pair of side truss members, extend along the lateral direction of the side truss members, and are spaced apart from each other in the front-back direction. as well as Multiple side-connecting truss members extend along the length of the vehicle and connect the ends of the transverse floor truss members to each other. The horizontal floor truss member has a horizontal lower truss member on each of its two horizontal sides. Each horizontal lower truss member connects the ends of the horizontal floor truss member to each other and bends in the outward and upward directions of the horizontal floor truss member to connect to the side connecting truss member.

2. The vehicle body according to claim 1, wherein, Each of the side truss member, the cross truss member, the cross floor truss member, and the side connecting truss member extends in the length direction and closes at an end or sidewall, such that the side truss member, the cross truss member, the cross floor truss member, and the side connecting truss member are connected to each other in a surface contact state between the closed ends or sidewalls.

3. The vehicle body according to claim 1, wherein, Each of the side truss member, the cross truss member, the cross floor truss member, and the side connecting truss member includes an internal space extending in the length direction and open at a surface, such that the side truss member, the cross truss member, the cross floor truss member, and the side connecting truss member are connected to each other by means of introducing the internal space.

4. The vehicle body according to claim 1, wherein, Each of the transverse truss members is connected at a first end to the side wall of a first side truss member and at a second end to the side wall of a second side truss member, so as to support the pair of side truss members at a position between the pair of side truss members.

5. The vehicle body according to claim 1, wherein, Each of the horizontal floor truss members is connected at both ends to the upper surface of the side truss member, or each of the horizontal floor truss members extends outward from the side truss member and is connected to the upper surface of the side truss member at multiple points between its two ends.

6. The vehicle body according to claim 5, wherein, As each of the horizontal floor truss members extends outward toward the side truss member, the end of the horizontal floor truss member is connected to the upper surface of the side connecting truss member.

7. The vehicle body according to claim 1, wherein, Each of the side truss members is longer than the side connecting truss member, such that the wheels of the vehicle are located in the space defined between the ends of the side truss members and the ends of the side connecting truss members.

8. The vehicle body according to claim 1, wherein, The length of the transverse truss member or the transverse floor truss member varies according to the total width of the vehicle, and the length of the side truss member or the side connecting truss member varies according to the total length of the vehicle.

9. The vehicle body according to claim 1, wherein, The side truss members, the transverse truss members, the transverse floor truss members, and the side connecting truss members are connected to each other by bolts.

10. The body of a vehicle, comprising: A pair of side truss members extend along the length of the vehicle; Multiple transverse truss members connect the pair of side truss members to each other in the width direction of the vehicle; Multiple horizontal floor truss members are connected to the upper ends of the pair of side truss members, extend along the lateral direction of the side truss members, and are spaced apart from each other in the front-back direction. Multiple side-connecting truss members extend along the length of the vehicle and connect the ends of the transverse floor truss members to each other; as well as Multiple shock absorber housings cover and support the upper ends of the shock absorbers connected to the wheels of the vehicle, wherein the lower end of each shock absorber housing includes a support member and is supported by the transverse floor truss members via the support member. The horizontal floor truss member has a horizontal lower truss member on each of its two horizontal sides. Each horizontal lower truss member connects the ends of the horizontal floor truss member to each other and bends in the outward and upward directions of the horizontal floor truss member to connect to the side connecting truss member.

11. The vehicle body according to claim 10, wherein, The lower end of the support member is connected to the upper surface of the horizontal floor truss member at one end of the horizontal floor truss member or at a point where the horizontal floor truss member is connected to a corresponding side truss member or a corresponding side connecting truss member.

12. The vehicle body according to claim 10, wherein: The upper end of the support member is connected to one of the four corners of the shock absorber housing facing the vehicle interior; and The support member extends downward while tilting at a predetermined angle along the outside of the damper housing, and the lower end of the support member is connected to the upper surface of the transverse floor truss member.

13. The vehicle body according to claim 10, wherein, The front or rear part of the pair of side truss members is provided with a front lower truss member or a rear lower truss member connected thereto. The front lower truss member or the rear lower truss member bends outward and upward in the side truss members and is connected to the lower end of the two shock absorber housings.

14. The vehicle body according to claim 10, wherein, Each of the said transverse lower truss members is connected to the support member, and its lower end is connected to the lower end of two shock absorber housings located on the front and rear sides of the vehicle.

15. A vehicle comprising: Vehicle body; A pair of side truss members extend along the length of the vehicle and are connected to the vehicle body; Multiple transverse truss members connect the pair of side truss members to each other in the width direction of the vehicle; Multiple horizontal floor truss members are connected to the upper ends of the pair of side truss members, extend along the lateral direction of the side truss members, and are spaced apart from each other in the front-back direction. Multiple side-connecting truss members extend along the length of the vehicle and connect the ends of the transverse floor truss members to each other; Multiple vibration dampers; Multiple damper housings, each of which supports the upper end of a damper and covers the damper; as well as The wheel is connected to the shock absorber. The horizontal floor truss member has a horizontal lower truss member on each of its two horizontal sides. Each horizontal lower truss member connects the ends of the horizontal floor truss member to each other and bends in the outward and upward directions of the horizontal floor truss member to connect to the side connecting truss member.

16. The vehicle according to claim 15, wherein, Each of the side truss member, the cross truss member, the cross floor truss member, and the side connecting truss member extends in the length direction and closes at an end or sidewall, such that the side truss member, the cross truss member, the cross floor truss member, and the side connecting truss member are connected to each other in a surface contact state between the closed ends or sidewalls.

17. The vehicle according to claim 15, wherein, Each of the side truss member, the cross truss member, the cross floor truss member, and the side connecting truss member includes an internal space extending in the length direction and open on one surface, such that the side truss member, the cross truss member, the cross floor truss member, and the side connecting truss member are connected to each other by means of introducing the internal space.

18. The vehicle according to claim 15, wherein, Each of the transverse truss members is connected at a first end to the side wall of a first side truss member and at a second end to the side wall of a second side truss member to support the pair of side truss members at a location between the pair of side truss members.

19. The vehicle according to claim 15, wherein, Each of the side truss members is longer than the side connecting truss member, such that the wheels of the vehicle are located in the space defined between the ends of the side truss members and the ends of the side connecting truss members.

20. The vehicle according to claim 15, wherein, The side truss members, the transverse truss members, the transverse floor truss members, and the side connecting truss members are connected to each other by bolts.

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