Connection structure for vehicle body

Abstract

An embodiment of a connection structure of a vehicle body includes: a front vehicle body module fixed to a front portion of a center floor member of a bottom vehicle body of the vehicle body, where the front vehicle body module is a fixed portion; a rear vehicle body module detachably fixed to a rear portion of the center floor member and a rear portion of the front vehicle body module in a set shape, in which the rear vehicle body module is a variable portion; a plurality of center floor member coupling modules provided to a center floor member at the rear of the front vehicle body module; and a plurality of variable part coupling modules disposed on a lower side of the rear vehicle body module and configured to be coupled to the center floor member coupling module by electromagnetic force.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of Korean Patent Application No. 10-2023-0125390, filed on September 20, 2023, which is incorporated herein by reference. Technical Field

[0003] The present disclosure relates to a connection structure of a vehicle body. Background Art

[0004] In recent years, the automotive industry has introduced new concepts for future mobility visions to realize people-centric, vibrant future cities. One of these future mobility solutions is the customized purpose-built vehicle (PBV) as a purpose-based mode of travel.

[0005] PBV may be an example of an environmentally friendly mobile vehicle based on an electric vehicle (EV). When a user travels from a departure point to a destination in an unmanned or manned autonomous driving manner, PBV may provide a variety of customized services to the user.

[0006] The body of the PBV includes a bottom body (also referred to as a chassis frame, a rolling chassis or a skateboard chassis by those skilled in the art) and an upper body mounted to the bottom body.

[0007] Here, the upper body can be configured in various forms according to the customized service type of the PBV. For example, the PBV can be used as a hailing type vehicle in which the cabins are respectively configured at the front and rear of the upper body. In addition, the PBV can also be used as a cab type vehicle in which the cabin is configured only at the front of the upper body. In addition, the PBV can be used as a delivery type vehicle in which the cabin is configured at the front of the upper body and the luggage room is configured at the rear.

[0008] According to the prior art, according to the various customized services of the above-mentioned PBV, the cost of changing the upper body structure increases. Therefore, it is necessary to develop a body connection structure that can be changed into various types of bodies according to the type of customized services of the PBV. Summary of the invention

[0010] The present disclosure relates to a connection structure of a vehicle body. Certain embodiments relate to a connection structure of a vehicle body in a PBV including a fixed portion and a variable portion.

[0011] An embodiment of the present disclosure provides a connection structure of a vehicle body, in which the front and rear portions of an upper vehicle body are configured to be detachable, and rigidity and vibration isolation are ensured at the detachable portions.

[0012] According to one embodiment of the present disclosure, a vehicle body connection structure includes a front vehicle body module as a fixed portion, which is fixed to the front portion of a central floor member of a bottom vehicle body of a vehicle; a rear vehicle body module as a variable portion, which is detachably fixed to the rear portion of the central floor member and the rear portion of the front vehicle body module in a set shape; a plurality of central floor member coupling modules, which are mounted on the central floor member at the rear portion of the front vehicle body module; and a plurality of variable portion coupling modules, which are mounted on the lower side of the rear vehicle body module and coupled to the central floor member coupling modules by electromagnetic force.

[0013] The central floor member may include a central floor lower member and a central floor upper member coupled to an upper portion of the central floor lower member.

[0014] The plurality of central floor member combining modules may include a pair of partitions installed on the inner side of the central floor lower member and arranged to be spaced apart along the length direction of the central floor lower member, and the central floor upper member may be combined in a manner of covering the upper portion of the central floor lower member to form an accommodation space between the pair of partitions.

[0015] The partition may be made of steel material.

[0016] The plurality of center floor member combination modules may include a magnetic member inserted into the receiving space.

[0017] The magnetic member may be formed with a coupling groove into which the variable part magnetic members provided in the plurality of variable part coupling modules are inserted and coupled.

[0018] The magnetic member may not be inserted into the accommodation space, and may have a pair of wing parts extending along an upper surface of the member on the center base plate.

[0019] The magnetic member may be bolted to an inner side surface of the center floor upper member and a lower surface of the center floor lower member within the accommodation space, and the pair of wing members may be bolted to an upper surface of the center floor upper member.

[0020] The magnetic member may be bolted to the inner side of the member on the center floor only on the side of the magnetic member facing the outer side of the vehicle.

[0021] The plurality of center floor member combination modules may further include a magnetic bushing inserted into the accommodation space and supported by the pair of partitions, and the magnetic member may be disposed to be inserted into the magnetic bushing.

[0022] The inner side surface of the magnetic bushing and the outer side surface of the magnetic member may be fixed by a male-female connection between the groove and the valley.

[0023] The grooves and valleys may form a cross shape.

[0024] The magnetic bushing may be made of a rubber material.

[0025] The magnetic bushing may be formed with a pair of protrusions formed to be higher than the height of the magnetic member inserted into the magnetic bushing and the center floor member, and extending in a length direction of the center floor member.

[0026] According to one embodiment of the present disclosure, it is possible to reduce the cost incurred by changing the upper structure of a vehicle body to accommodate various customized services of a PBV.

[0027] Furthermore, it is possible to ensure the bonding rigidity and the skeleton rigidity of the front vehicle body module and the rear vehicle body module which are detachable relative to each other, and to ensure the mounting rigidity of the magnetic connection structure.

[0028] Furthermore, by applying the magnetic bushing, it is possible to absorb vibration of the magnetic connection structure and shield electromagnetic waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a perspective view showing a connection structure of a vehicle body according to an embodiment of the present disclosure.

[0030] Figure 2 is a perspective view showing a central floor member coupling module according to an embodiment of the present disclosure.

[0031] Figure 3 1 is a perspective view showing a state in which a bulk head of a center floor member combined with a module is mounted to the center floor member according to an embodiment of the present disclosure.

[0032] Figure 4 is along Figure 3 Cross-sectional view taken along line AA.

[0033] Figure 5 1 is a perspective view showing a state in which a spacer and a magnetic member of a central floor member combined module according to an embodiment of the present disclosure are mounted to the central floor member.

[0034] Figure 6 is along Figure 5 Cross-sectional view taken along line BB.

[0035] Figure 7 is along Figure 5 Cross-sectional view taken along line CC.

[0036] Figure 8 1 is a perspective view showing a state in which a spacer, a magnetic member, and a magnetic bushing of a center floor member combined module according to an embodiment of the present disclosure are mounted to the center floor member.

[0037] Fig. 9 1 is a perspective view showing a state before a magnetic member and a magnetic bushing of a central floor member combination module are combined according to an embodiment of the present disclosure.

[0038] Fig.10 1 is a perspective view showing a state in which a magnetic member and a magnetic bushing of a central floor member combined module according to an embodiment of the present disclosure are combined.

[0039] Fig.11 1 is a perspective view showing a state in which a magnetic member, a partition plate, and a magnetic bushing of a central floor member and a module are combined according to an embodiment of the present disclosure.

[0040] Fig.12 is along Figure 8 Cross-sectional view taken along line DD.

[0041] Fig.13 The variable part is combined with the module to Fig.12 A cross-sectional view showing a state where the central floor member is combined with a module. DETAILED DESCRIPTION

[0042] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings so that those skilled in the art can easily implement the embodiments of the present disclosure. However, the present disclosure can be implemented in various different forms and is not limited to the embodiments provided herein.

[0043] Furthermore, among the multiple embodiments, components having the same configuration will be representatively described using the same reference numerals in one embodiment, and only components different from one embodiment will be described in other embodiments.

[0044] It should be noted that the drawings are schematic and not drawn to scale. For clarity and convenience in the drawings, the relative dimensions and proportions of the components in the drawings are exaggerated or reduced in size, and any dimensions are illustrative and not restrictive. In addition, the same reference numerals are used to indicate similar features of the same structure, element or component that appear in two or more drawings. When a component is referred to as being "on another component," it may be directly on the other component, or it may be accompanied by another component in between.

[0045] The embodiments of the present disclosure specifically represent exemplary embodiments of the present disclosure. Therefore, various variations of the drawings are expected. Therefore, the embodiments are not limited to the specific forms of the regions shown, and include variations in form caused by, for example, manufacturing.

[0046] Hereinafter, a connection structure of a vehicle body according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

[0047] Figure 1 is a perspective view showing a joint structure of a vehicle body according to an embodiment of the present disclosure.

[0048] refer to Figure 1 The connection structure of the vehicle body according to the embodiment of the present disclosure may be applied to, for example, the vehicle body of a purpose-built vehicle (hereinafter referred to as “PBV”).

[0049] PBV can be used as a living module vehicle based on an electric vehicle, providing users with various customized services during the trip from the departure point to the destination.

[0050] In one embodiment, the PBV can be manufactured as a single box design with a large interior space. In addition, the PBV can also apply facing seats to the interior space.

[0051] The bodies of these PBVs are suitable for small-scale production of multiple models with a small number of parts and can be made in a variety of shapes and sizes.

[0052] In addition, the body of the PBV includes a skateboard-type bottom body (generally referred to as a "rolling chassis" or "chassis frame" by those skilled in the art) and an upper body mounted on the bottom body.

[0053] Components such as a battery assembly and a drive motor may be mounted on the bottom body. In addition, the upper body is a body-in-white (BIW) coupled to the bottom body, and it may include a cab and a luggage room with a large interior space.

[0054] The connection structure of the vehicle body according to the embodiment of the present disclosure has a structure in which an upper vehicle body of various shapes and uses can be applied to a lower vehicle body according to the type of PBV customization service.

[0055] To this end, in the connection structure of the vehicle body according to the embodiment of the present disclosure, as the upper vehicle body, a front vehicle body module 1000 and a rear vehicle body module 2000 are included.

[0056] In one embodiment, the front body module 1000 includes a cab-type front compartment. The front body module 1000 may be fixed to the front portion of the bottom body.

[0057] In one embodiment of the present disclosure, the rear body module 2000 includes a rear compartment or a luggage room. The rear body module 2000 is detachably provided at the rear of the bottom body and at the rear of the front body module 1000.

[0058] Here, the rear body module 2000 can be removed from the rear of the bottom body in a vertical direction. In addition, the rear body module 2000 can be removed from the rear of the front body module 1000 in the front-rear direction of the body. The rear body module 2000 can be manufactured in various shapes according to the purpose of the PBV.

[0059] The front body module 1000 may be fixed to a front portion of a center floor member 10 of a floor vehicle body, and the rear body module 2000 may be detachably fixed to a rear portion of the center floor member 10 of the floor vehicle body.

[0060] The rear vehicle body module 2000 and the center floor member 10 may be combined together through vertical combination between a plurality of center floor member combining modules 100 and a plurality of variable portion combining modules 200 .

[0061] The central floor member combining module 100 may be provided at the central floor member 10. The variable portion combining module 200 may be provided at the lower portion of the variable portion to face the central floor member combining module 100 at a position corresponding to the central floor member combining module 100. These central floor member combining module 100 and the variable portion combining module 200 may be combined by electromagnetic force.

[0062] Figure 2 is a perspective view showing a central floor member combining module according to an embodiment of the present disclosure.

[0063] refer to Figure 2 The center floor member 10 may include a center floor lower member 13 mounted to the bottom vehicle body, and a center floor upper member 15 coupled to an upper portion of the center floor lower member 13 .

[0064] The central floor member 10 may be arranged in pairs at two parts of the bottom body along the length direction of the body. The central floor member combination module 100 may be installed on the central floor members 10 on both sides, respectively. That is, the central floor lower member 13 and the central floor upper member 15 form a magnetic installation through hole H when combined (see FIG. Figure 3 ), and the central floor member combining module 100 may be inserted and mounted in the magnetic mounting through hole H. The central floor member combining module 100 may be bolted and fixed to the central floor lower member 13 and the central floor upper member 15 by bolts 45 , 47 and 49 .

[0065] Figure 3 1 is a perspective view showing a state in which a partition plate of a center floor member combined with a module is mounted to the center floor member according to an embodiment of the present disclosure. Figure 4 is along Figure 3 Cross-sectional view taken along line AA.

[0066] refer to Figure 3 and Figure 4, the central floor member combined module 100 may include a bulk head 30. A pair of bulk heads 30 may be installed at the inner side of the central floor lower member 13, spaced apart at a certain interval along the length direction of the central floor lower member 13. The pair of bulk heads 30 are installed at both sides of the magnetic mounting through hole H to form a receiving space, and the central floor member combined module 100 may be inserted into the receiving space. The central floor upper member 15 is combined in a manner of covering the upper portion of the central floor lower member 13, thereby forming a receiving space between the pair of bulk heads 30.

[0067] The partition 30 may be made of steel and may support the lower surface and side surfaces of the center floor lower member 13 and the upper surface and side surfaces of the center floor upper member 15 to ensure the rigidity of the center floor member 10 and maintain the shape of the accommodation space.

[0068] Figure 5 1 is a perspective view showing a state in which a spacer and a magnetic member of a central floor member combined module according to an embodiment of the present disclosure are mounted to the central floor member. Figure 6 is along Figure 5 Cross-sectional view taken along line BB. Figure 7 is along Figure 5 Cross-sectional view taken along line CC.

[0069] refer to Figure 5 , the central floor member combination module 100 may further include a magnetic member 40. The magnetic member 40 may be inserted and installed in a receiving space formed by the central floor lower member 13, the central floor upper member 15, and the pair of partitions 30.

[0070] The coupling groove may be formed at the central portion of the magnetic member 40, that is, the portion corresponding to the accommodation space. The variable part magnetic member 50 included in the variable part coupling module 200 disposed at the lower portion of the rear body module 2000 is inserted into the coupling groove so that the rear body module 2000 and the central floor member 10 can be coupled.

[0071] A pair of wing members extending along the upper surface of the upper member 15 on the central bottom plate may be provided on both sides of the magnetic member 40. The wing members are not inserted into the accommodation space, but are coupled to the upper surface of the upper member 15 on the central bottom plate by bolts 45. The paired wing members may be formed to have different lengths and shapes according to the shape of the upper member 15 on the central bottom plate. For example, the wing member on one side may be formed to have a shorter length than the wing member on the other side, the wing member on one side may be coupled to the upper member 15 on the central bottom plate by two bolts 45, and the wing member on the other side may be coupled to the upper member 15 on the central bottom plate by four bolts 45.

[0072] like Figure 6As shown, the bolts 45 are arranged side by side in a direction perpendicular to the length direction of the center floor member 10 to couple the wing parts and the center floor member 10 .

[0073] In addition, if Figure 7 As shown, the central portion of the magnetic member 40 inserted into the accommodation space can be coupled to the inner side and lower surface of the central floor upper member 15 by bolts 47 and 49. The side of the central portion of the magnetic member 40 can be fixed to the inner side of the central floor upper member 15 by two bolts 47. The side opposite to the fixed portion of the magnetic member 40 may not be fixed. The lower surface of the central portion of the magnetic member 40 can be coupled to the central floor lower member 13 by four bolts 49.

[0074] Figure 8 1 is a perspective view showing a state in which a spacer, a magnetic member, and a magnetic bushing of a center floor member combined module according to an embodiment of the present disclosure are mounted to the center floor member.

[0075] refer to Figure 8 , the central floor member combined module 100 may further include a magnetic bushing 20 inserted into the accommodation space and supported by a pair of partitions 30. The magnetic member 40 may be provided to be inserted into the magnetic bushing 20. A space may be formed in the central portion of the magnetic bushing 20 so that the central portion of the magnetic member 40 may be inserted therein, and the magnetic member 40 may be inserted into the magnetic bushing 20 and fitted.

[0076] The magnetic bushing 20 may be made of a rubber material. The magnetic bushing 20 may absorb vibration of the magnetic member 40 and shield electromagnetic waves.

[0077] Fig. 9 1 is a perspective view showing a state before a magnetic member and a magnetic bushing of a central floor member combination module are combined according to an embodiment of the present disclosure. Fig.10 1 is a perspective view showing a state in which a magnetic member and a magnetic bushing of a central floor member combined module according to an embodiment of the present disclosure are combined. Fig.11 1 is a perspective view showing a state in which a magnetic member, a partition plate, and a magnetic bushing of a central floor member and a module are combined according to an embodiment of the present disclosure.

[0078] like Fig. 9 As shown, the central portion of the magnetic member 40 is inserted into the space of the central portion of the magnetic bushing 20, and when inserted, the inner side of the magnetic bushing 20 and the outer side of the magnetic member 40 can be fixed by the male-female connection between the groove 42 and the valley 22. The groove 42 and the valley 22 can be formed in a cross shape to prevent the magnetic bushing 20 and the magnetic member 40 from shaking up and down and left and right relative to each other.

[0079] like Fig.10As shown, when the magnetic member 40 and the magnetic bushing 20 are combined, an opening may be formed at the side of the magnetic bushing 20 so that the portion of the magnetic member 40 bolted to the center base plate upper member 15 is exposed.

[0080] like Fig.11 As shown, the magnetic bushing 20 may be supported on both sides by the partition 30 , and the central floor member combining module 100 in which the magnetic member 40 , the magnetic bushing 20 and the partition 30 are combined is inserted into the receiving space of the central floor member 10 .

[0081] Fig.12 is along Figure 8 Cross-sectional view taken along line DD. Fig.13 The variable part is combined with the module to Fig.12 A cross-sectional view showing a state where the central floor member is combined with a module.

[0082] like Fig.11 and Fig.12 As shown, the magnetic bushing 20 has a pair of protrusions 24 , and when the central floor member combining module 100 is inserted into the central floor member 10 , the height of the protrusions 24 is higher than the height of the magnetic member 40 and the central floor member 15 .

[0083] In addition, if Fig.13 As shown, when the rear vehicle body module 2000 is coupled to the central floor member 10, the magnetic member 50 of the variable part coupling module 200 mounted on the rear vehicle body module 2000 is inserted and coupled to the magnetic member 40 of the central floor member coupling module 100. The magnetic member 50 of the variable part coupling module 200 is coupled to the lower surface of the variable part floor panel 55, the variable part floor panel 55 is coupled to the lower portion of the variable part floor member 57, and the variable part floor panel 55 contacts the upper surface of the central floor upper member 15.

[0084] The magnetic component 50 of the variable part combination module 200 and the magnetic component 40 of the central base plate component combination module 100 are male-female coupled, and the protrusion 24 of the magnetic bushing 20 can absorb the change of the magnetic component 50 of the variable part combination module 200 and can be used to shield electromagnetic waves.

[0085] As described above, according to the embodiments of the present disclosure, it is possible to reduce the cost incurred by changing the upper structure of the vehicle body to accommodate various customized services of the PBV.

[0086] Furthermore, it is possible to ensure the bonding rigidity and the skeleton rigidity of the front vehicle body module and the rear vehicle body module which are detachable relative to each other, and to ensure the mounting rigidity of the magnetic connection structure.

[0087] Furthermore, by applying the magnetic bushing, it is possible to absorb vibration of the magnetic connection structure and shield electromagnetic waves.

[0088] Although the present disclosure has been described in conjunction with what are currently considered to be practical embodiments, it should be understood that the present disclosure is not limited to the disclosed embodiments. On the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the present disclosure.

[0089] The following reference numerals may be used in conjunction with the drawings to describe various features of embodiments of the present disclosure.

[0090] 1000: front body module 2000: rear body module

[0091] 100: Central floor member combination module 200: Variable portion combination module

[0092] 10: Central floor member 13: Central floor lower member

[0093] 15: Central bottom plate upper member 20: Magnetic bushing

[0094] 22: Valley 24: Protrusion

[0095] 30: partition 40, 50: magnetic member

[0096] 42: Groove 45, 47, 49: Bolt

[0097] H: Magnetic mounting through hole 55: Variable component bottom plate panel

[0098] 57: Variable component bottom plate member.

Claims

1. A vehicle body connection structure, the connection structure comprising: a front body module fixed to a front portion of a center floor member of a bottom body of the vehicle body, wherein the front body module is a fixed portion; a rear body module detachably fixed to a rear portion of the center floor member and a rear portion of the front body module in a set shape, wherein the rear body module is a variable portion; a plurality of center floor member combination modules disposed on the center floor member at the rear of the front vehicle body module; and A plurality of variable portion coupling modules are provided at a lower side of the rear vehicle body module and are configured to be coupled to the central floor member coupling module by an electromagnetic force.

2. The connection structure according to claim 1, wherein: The central floor member comprises: a central floor lower member; and A central floor upper member is coupled to an upper portion of the central floor lower member.

3. The connection structure according to claim 2, wherein: The plurality of central floor member combining modules include a pair of partitions, the pair of partitions are arranged at the inner side of the central floor lower member and are arranged to be spaced apart along the length direction of the central floor lower member; and The center floor upper member is coupled in such a manner as to cover an upper portion of the center floor lower member and define a receiving space between the pair of partitions.

4. The connection structure according to claim 3, wherein: The pair of partitions includes a steel material.

5. The connection structure according to claim 3, wherein: The plurality of center floor member combining modules further include a magnetic member insertable into the accommodation space.

6. The connection structure according to claim 5, wherein: The plurality of central floor member combination modules further include a magnetic bushing inserted into the accommodation space and supported by the pair of partitions; and The magnetic member is configured to be inserted into the magnetic bushing.

7. The connection structure according to claim 6, wherein: The inner side surface of the magnetic bushing and the outer side surface of the magnetic component are fixed by a male-female connection between the groove and the valley.

8. The connection structure according to claim 7, wherein: The groove and the valley each include a cross shape.

9. The connection structure according to claim 6, wherein: The magnetic bushing includes a rubber material.

10. The connection structure according to claim 6, wherein: The magnetic bushing includes a pair of protrusions extending to a height greater than the height of the magnetic member inserted into the magnetic bushing and the center floor member, and extending in a length direction of the center floor member.

11. A vehicle body connection structure, the connection structure comprising: a front vehicle body module fixed to a front portion of a center floor member of a bottom vehicle body of the vehicle body, wherein the front vehicle body module is a fixed portion, and wherein the center floor member includes a center floor lower member and a center floor upper member joined to an upper portion of the center floor lower member; a rear body module detachably fixed to a rear portion of the center floor member and a rear portion of the front body module in a set shape, wherein the rear body module is a variable portion; a plurality of central floor member combining modules disposed on the central floor member at the rear of the front vehicle body module, wherein the plurality of central floor member combining modules include a pair of partitions disposed at the inner side of the central floor lower member and arranged to be spaced apart along the length direction of the central floor lower member, wherein the central floor upper member is combined in a manner of covering the upper portion of the central floor lower member and defining an accommodation space between the pair of partitions, and wherein the plurality of central floor member combining modules further include a magnetic member capable of being inserted into the accommodation space, the magnetic member including a combining groove; as well as A plurality of variable part combining modules are arranged at the lower side of the rear body module and are configured to be combined to the central floor member combining module by electromagnetic force, wherein the variable part magnetic members in the plurality of variable part combining modules can be inserted into the combining grooves of the magnetic members and combined therewith.

12. The connection structure according to claim 11, wherein: The entirety of the magnetic member is not inserted into the accommodation space, and the magnetic member includes a pair of wing parts extending along an upper surface of the upper member of the center floor.

13. The connection structure according to claim 12, wherein: The magnetic member is coupled to the inner side surface of the upper member of the central floor and the lower surface of the lower member of the central floor in the accommodation space by a first bolt; and The pair of wing members are coupled to the upper surface of the center floor upper member by second bolts.

14. The connection structure according to claim 13, wherein: The magnetic member is bonded to the inner side surface of the center floor upper member only at the side surface of the magnetic member facing the outer side of the vehicle body.

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