Body

Abstract

The present invention provides a vehicle body. In one embodiment, the body includes a sill beam; a rigid member disposed within the sill beam and extending longitudinally along the sill beam; a support bracket disposed within the sill beam, wherein one end of the support bracket is connected to the rigid member and the other end is connected to the sill beam; and fasteners configured to secure a lower housing of a battery pack to the sill beam.

Description

Technical Field

[0001] This disclosure relates to a vehicle body including fasteners configured to secure the lower housing edge of a battery pack to a sill beam, a rigid member disposed within the sill beam to extend longitudinally along the vehicle, and a support bracket disposed within the sill beam, one end of the support bracket being connected to the rigid member and the other end being connected to the sill beam to support the rigid member. Background Technology

[0002] To address environmental issues such as abnormal temperatures in recent years, technologies for reducing carbon emissions are being actively developed. To reduce carbon emissions, energy should be produced in environmentally friendly ways that do not use fossil fuels. The produced energy is stored as electricity, which is then used in vehicles, various industrial sectors, and homes.

[0003] Improving the driving range of electric vehicles related to batteries is the most important performance development goal. To this end, a method is being developed that can accommodate a large number of batteries by maximizing and efficiently utilizing the limited space of the vehicle. In particular, the "battery-to-vehicle" (CTV) structure, which integrates the central floor of the vehicle body with the upper battery casing, is attracting attention.

[0004] However, by omitting the battery casing, there are many challenges in ensuring side-impact safety and noise, vibration, and harshness (NVH) performance.

[0005] The above disclosures in this section are intended only to enhance understanding of the general context of this disclosure and should not be construed as an admission or in any way implying that such content constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] Embodiments of this disclosure provide a vehicle body including fasteners for securing the lower housing edge of a battery pack to a sill beam, a rigid member disposed within the sill beam to extend longitudinally along the vehicle, and a support bracket disposed within the sill beam, one end of the support bracket being connected to the rigid member and the other end being connected to the sill beam to support the rigid member.

[0007] The embodiments disclosed herein are not limited to the embodiments described above. Those skilled in the art will more clearly understand other embodiments not mentioned in this disclosure through the following detailed description.

[0008] According to embodiments of this disclosure, the above and other embodiments can be implemented by providing a vehicle body comprising: fasteners for fixing the edge of the lower housing of the battery pack to a sill beam; a rigid member disposed within the sill beam and extending longitudinally along the vehicle; and a support bracket disposed within the sill beam, one end of the support bracket being connected to the rigid member and the other end being connected to the sill beam to support the rigid member.

[0009] The vehicle body may also include a floor whose lateral ends are connected to the door sill beams to form the bottom of the vehicle interior space, and the floor is connected to the lower housing of the battery pack to cover the battery pack above it.

[0010] Flooring can be formed using a deep drawing process.

[0011] The floor may include: an upper surface portion configured to cover the upper part of the battery pack; a side surface portion extending downward after bending from the lateral end of the upper surface; and a flange portion extending outward after bending from the end of the side surface portion.

[0012] The side surface portion can contact the side surface of the sill beam, and the flange portion can contact the lower surface of the sill beam.

[0013] The first reinforcing member may be disposed on the inside of the floor to cover the area where the upper surface portion and the side surface portion of the floor intersect.

[0014] The first reinforcing member can form a structure with a closed cross section together with the upper and side surface portions of the floor.

[0015] The second reinforcing member can be set on the outer perimeter of the floor and in the area between the upper surface of the floor and the side surface of the threshold beam, such that its opposite ends contact the upper surface of the floor and the side surface of the threshold beam, respectively.

[0016] The second reinforcing member can form a structure with a closed cross section together with the upper surface of the floor and the side surface of the threshold beam.

[0017] The outermost components can be positioned along the edge of the lower housing of the battery pack.

[0018] Fasteners may be mounting bolts, which extend through the lower housing of the battery pack, the outermost components, and the sill beam before being secured.

[0019] The sealing component can be installed between the sill beam and the outermost component.

[0020] A cavity may be formed inside the rigid member, and a rigid member rib may be formed within the cavity, the rigid member rib extending in the same direction as the rigid member.

[0021] The interior space of the threshold beam may include an upper space and a lower space. Rigid components may be installed in the upper space, and support brackets may be installed in the lower space.

[0022] The fixed bracket can be positioned above the rigid member, so that the fixed bracket is connected to the upper surface of the rigid member and the inner surface of the sill beam.

[0023] The support frame can be columnar and connected to the sill beam and rigid members to form a closed cross section.

[0024] The edge portion of the support bracket can contact the sill beam and the surface of the rigid component.

[0025] A reinforcing member may be disposed within a support bracket, and the reinforcing member comprises: a surface contact portion configured to contact the surface of the support bracket; and an extension portion extending toward the side surface of the sill beam after bending from the end of the surface contact portion. A pipe nut may be disposed within the support bracket, one end of which is connected to the extension portion of the reinforcing member, and the other end of which is connected to the sill beam.

[0026] Fasteners can be inserted into the pipe nut and extend through the lower surface of the sill beam.

[0027] An embodiment provides a vehicle including a body according to an embodiment of the present disclosure. Attached Figure Description

[0028] The above and other objects, features and advantages of the embodiments of this disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, wherein:

[0029] Figure 1 This is a schematic diagram of a vehicle body according to an embodiment;

[0030] Figure 2 This is a schematic diagram of the internal space of the threshold beam according to an embodiment;

[0031] Figure 3 for Figure 2 Enlarged view of section A;

[0032] Figure 4 This is a schematic diagram of a vehicle body cross-section according to this embodiment;

[0033] Figure 5 This is a schematic diagram of the floor according to an embodiment;

[0034] Figure 6 This is a schematic diagram of a battery pack according to an embodiment. Detailed Implementation

[0035] In the following description of embodiments of this disclosure, detailed descriptions of known technologies introduced herein will be omitted where such detailed descriptions may obscure the subject matter of the embodiments of this disclosure. Furthermore, embodiments of this disclosure will be more clearly understood in conjunction with the accompanying drawings, and should not be limited to the drawings. It should be understood that all variations, equivalents, and alternatives without departing from the spirit and scope of this disclosure are included herein. The following description is not intended to limit this disclosure to the precise forms disclosed or a particular field of use. Therefore, various alternative embodiments and / or modifications to this disclosure are possible, whether explicitly described or implied herein, in light of its content. Those skilled in the art will recognize that changes in form and detail may be made without departing from the scope of this disclosure.

[0036] This disclosure will be described with reference to specific embodiments. However, as those skilled in the art will understand, the various embodiments disclosed herein can be modified or otherwise implemented in various other ways without departing from the spirit and scope of this disclosure. Therefore, the following description should be considered illustrative, and its purpose is to teach those skilled in the art how to make and use the various embodiments. It should be understood that the forms of disclosure shown and described herein should be considered representative embodiments. Equivalent elements, materials, processes, or steps may be substituted for those representatively shown and described herein. Expressions such as “comprising,” “including,” “incorporated,” “consisting of,” “having,” and “are” used to describe this disclosure are intended to be interpreted in a non-exclusive manner, that is, in a way that allows for the presence of items, components, or elements not explicitly described. Unless explicitly used otherwise, singular expressions should be construed as including the plural meaning.

[0037] Furthermore, the various embodiments disclosed herein should be considered illustrative and explanatory, and should in no way be construed as limiting the scope of this disclosure. All references to connections (e.g., attachment, fixation, coupling, connection, etc.) are used only to aid in understanding this disclosure and should not constitute limitations, particularly regarding the location, orientation, or purpose of the constructions or methods disclosed herein. Therefore, references to connections (if any) should be interpreted broadly. Moreover, such references to connections do not necessarily imply that two elements are directly connected to each other. Additionally, all numerical terms, such as, but not limited to, “first,” “second,” “third,” “primary,” “secondary,” “main,” or any other ordinal or numerical terms, should also be considered merely as identifiers to aid in understanding the various elements, embodiments, variations, or modifications of this disclosure, and should not imply any limitation on the embodiments, variations, or modifications of any element, or any limitation on their order or priority. That is, although these expressions may be used to describe various constituent elements, these constituent elements are not limited by the expressions associated with them. These expressions are only used to distinguish one constituent element from another.

[0038] The suffixes “module” and “unit” used in this article are for descriptive convenience and are therefore interchangeable, without any distinguishing meaning or function.

[0039] When a component is “connected” or “linked” to another component, it should be understood that the component can be directly connected to or linked to the other component, or that another component may exist between them. Conversely, when a component is “directly connected” or “directly linked” to another component, it should be understood that no other component exists between them.

[0040] Any number or variety of components of any construction disclosed in this disclosure may be included in this disclosure. These components may include any combination of the feature elements disclosed in this disclosure and may be arranged to constitute any of the various constructions disclosed in this disclosure. Not only the structure and arrangement of the components of this disclosure, but also the concepts of their use and operation, may be applied not only to the specific embodiments discussed in this disclosure, but also to any number and combination of embodiments. In the following description, embodiments including various feature elements having various arrangements will be described with reference to the accompanying drawings.

[0041] The various embodiments disclosed herein will now be described in detail with reference to the accompanying drawings, and identical or similar elements will be indicated by the same reference numerals regardless of the numbers in the drawings, and redundant descriptions thereof will be omitted.

[0042] As mentioned above, the "battery-to-vehicle" (CTV) structure, which integrates the central floor of the vehicle body with the battery top casing, is gaining attention. However, by omitting the battery top casing, there are many difficulties in ensuring side-impact stability and noise, vibration, and harshness (NVH) performance.

[0043] Therefore, embodiments of this disclosure are intended to provide a vehicle body configured to ensure vehicle safety and driving performance by enhancing side-impact safety and NVH performance while achieving weight reduction and increased battery cell installation space.

[0044] Furthermore, although the CTV structure, in which the floor portion serves as the upper housing of the battery pack, has been described as an example of a vehicle body, this is for ease of description only, and the scope of this disclosure should not be construed as limited to the CTV structure. It should be understood that various vehicle bodies configured to accommodate battery mounting fall within the scope of this disclosure.

[0045] Furthermore, the embodiments of this disclosure are applicable to various vehicles, such as electric vehicles connected to batteries, fuel cell vehicles, hybrid vehicles, etc. That is to say, it should be understood that various structures and systems capable of storing and supplying electrical energy in a vehicle, regardless of the type of vehicle, fall within the scope of this disclosure.

[0046] Furthermore, the embodiments of this disclosure are applicable to various fields related to industrial energy storage systems (ESS), residential ESS, small battery packs, etc.

[0047] The vehicle body according to an embodiment of the present disclosure may include: a fastener 100 configured to fix the edge of the lower housing 510 of the battery pack 500 to the sill beam 10; a rigid member 200 disposed within the sill beam 10 to extend longitudinally along the vehicle; and a support bracket 300 disposed within the sill beam 10, one end of which is connected to the rigid member 200 and the other end of which is connected to the sill beam 10 to support the rigid member 200.

[0048] refer to Figure 1 The sill beams 10 can be arranged in pairs, such that the pair of sill beams 10 are respectively arranged at opposite lateral ends of the vehicle body, spaced apart from each other in the width direction of the vehicle while extending longitudinally along the vehicle body. A front side beam 20 can be connected to the front of the sill beams 10, and a rear side beam 30 can be connected to the rear of the sill beams 10 to form the main frame of the vehicle body. A battery pack 500 can be connected to the vehicle body below the vehicle body, such that the battery pack 500 is arranged between the pair of sill beams 10.

[0049] refer to Figure 4 The sill beam 10 may include an outer portion 11 disposed on the outer surface of the vehicle body and an inner portion 12 disposed on the inner surface of the vehicle body. The connection between the outer portion 11 and the inner portion 12 forms the internal space of the sill beam 10. The internal space of the sill beam 10 may be divided into an upper space V1 and a lower space V2, wherein a rigid member 200 is disposed in the upper space V1 and a support bracket 300 is disposed in the lower space V2. Furthermore, the inner portion 12 may be bent at the boundary between the upper space V1 and the lower space V2.

[0050] In one embodiment, a rigid member 200 is disposed within the internal space of each of the pair of sill beams 10 to protect the battery pack 500 arranged between the pair of sill beams 10. Furthermore, a load path resistant to external impacts can be formed by a support bracket 300 configured to support the rigid member 200. Therefore, when an external impact occurs, the rigid member 200 can rotate, thereby preventing it from penetrating the battery pack 500.

[0051] In one embodiment, the lateral end of the floor 400 may be connected to the door sill beam 10 to form the bottom of the vehicle interior space, and may be connected to the lower housing 510 of the battery pack 500 to cover the battery pack 500 above it.

[0052] In one embodiment, the floor 400 may be made of a relatively rigid material because it needs to form the bottom of the vehicle's interior space and cover and protect the upper part of the battery pack 500. Specifically, in the event of a fire within the battery pack 500, it is necessary to prevent the fire from spreading to the vehicle's interior space; therefore, the floor 400 may be formed of a metallic material. For example, when formability and lightweight are important, the floor 400 may be made of aluminum. On the other hand, when stability and protective performance are important, the floor 400 may be made of stainless steel. Of course, these are merely examples, and the material of the floor 400 is not limited to the examples described above.

[0053] In one embodiment, the floor 400 has a centrally projecting panel shape, thus effectively covering the upper part of the battery pack 500 when connected to the lower housing 510 of the battery pack 500. Various processes can be used to form the floor 400. For example, the floor 400 can be formed by a deep drawing process. In this case, the floor 400 can be formed with a uniform overall thickness, while reducing its forming time and forming cost.

[0054] refer to Figure 5 The floor 400 may include: an upper surface portion 401 for covering the upper part of the battery pack 500; a side surface portion 402 extending downward after bending from the lateral end of the upper surface portion 401; and a flange portion 403 extending outward after bending from the end of the side surface portion 402.

[0055] refer to Figure 4 The side surface portion 402 of the floor 400 contacts the side surface of the sill beam 10, and the flange portion 403 contacts the lower surface of the sill beam 10. Therefore, a load path is formed extending from the sill beam 10 through the side surface portion 402 of the floor 400 to the upper surface portion 401 of the floor 400, thereby ensuring impact resistance against external impacts.

[0056] In one embodiment, a cross member 430 may be provided at the upper surface portion 401 of the floor 400 to span the floor 400.

[0057] refer to Figure 4 The crossbeam 430 connects to the corresponding sill beams 10 at both ends and extends along the width of the vehicle, thus providing more effective support for the sill beams 10. Furthermore, the crossbeam 430 forms a load path extending from the sill beams 10 to the floor 400, thereby ensuring impact resistance against external shocks.

[0058] In one embodiment, the first reinforcing member 410 may be disposed on the inner side of the floor 400. The first reinforcing member 410 may be disposed in the connection area between the upper surface portion 401 and the side surface portion 402 of the floor 400.

[0059] refer to Figure 4 Since the first reinforcing member 410 is disposed in the area where the upper surface portion 401 and the side surface portion 402 of the floor 400 connect, the first reinforcing member 410 can form a structure with a closed cross-section together with the upper surface portion 401 and the side surface portion 402 of the floor 400. For example, the first reinforcing member 410 can protrude toward the battery pack 500, and its opposite ends can respectively contact the upper surface portion 401 and the side surface portion 402 of the floor 400, thereby forming a closed cross-section. With this structure, the first reinforcing member 410 can strengthen the area between the upper surface portion 401 and the side surface portion 402 of the floor 400 and form a load path that resists external impact, thereby ensuring impact performance.

[0060] In one embodiment, the second reinforcing member 420 may be disposed on the periphery of the floor 400. The second reinforcing member 420 may be disposed in the region between the upper surface portion 401 of the floor 400 and the side surface of the sill beam 10, such that its opposite ends respectively contact the upper surface portion 401 and the side surface of the sill beam 10.

[0061] refer to Figure 4 The second reinforcing member 420 can form a structure with a closed cross-section together with the upper surface portion 401 of the floor 400 and the side surface of the sill beam 10. For example, one end of the second reinforcing member 420 is in surface contact with the upper surface portion 401 of the floor 400, and the other end is in surface contact with the side surface of the sill beam 10, thereby forming a closed cross-section. With this structure, the second reinforcing member 420 can support the floor 400 and the sill beam 10 and form a load path that resists external impacts, thereby ensuring impact performance.

[0062] In one embodiment, a first reinforcing member 410 may be disposed on the side of the lower space V2 of the sill beam 10, and a second reinforcing member 420 may be disposed on the side of the upper space V1 of the sill beam 10. Compared to disposing of only one of the first reinforcing member 410 and the second reinforcing member 420, the sill beam 10 and the floor 400 can be supported more effectively, and a load path resisting external impacts can be formed, thereby ensuring impact performance.

[0063] refer to Figure 6 In one embodiment, the outermost member 520 may be disposed along the edge of the lower housing 510 of the battery pack 500, and an installation space surrounded by the outermost member 520 may be formed above the lower housing 510 of the battery pack 500. The upper part of the battery pack 500 may be open, and a floor 400 may be connected to the lower housing 510 of the battery pack 500 to cover the battery pack 500 above it.

[0064] Multiple battery cells can be installed within the mounting space of the battery pack 500 in an intermediate form, either as modules or battery cell module assemblies (CMA). Figure 5 In this case, multiple battery cells are assembled to form a battery module B, and multiple battery modules B can be installed within the mounting space of the battery pack 500. Furthermore, a crossbeam 540 spanning the lower housing 510 of the battery pack 500 can be provided between the multiple battery modules B installed within the mounting space to form a load path resisting external impacts, thereby ensuring impact performance.

[0065] In one embodiment, the outermost member 520 may include a longitudinal member 521 extending longitudinally along the vehicle and a transverse member extending in the vehicle width direction.

[0066] refer to Figure 4 The outermost member 520 may have a closed cross-sectional shape with an internal cavity. Various processes can be used to form the outermost member 520. For example, the outermost member 520 may be formed by an extrusion process to have a closed cross-sectional shape with an internal cavity. The extrusion directions of the longitudinal member 521 and the transverse member 522 constituting the outermost member 520 may intersect each other perpendicularly.

[0067] In one embodiment, the lower housing 510 of the battery pack 500 may be connected to the lower surface of the sill beam 10, and the outermost member 520 may be disposed between the lower housing 510 of the battery pack 500 and the lower surface of the sill beam 10.

[0068] In one embodiment, the fastener 100 may be a mounting bolt extending through the lower surface of the lower housing 510, the outermost member 520, and the sill beam 10 of the battery pack 500, and may be inserted into and tightened into a tube nut 310, which will be described later. Additionally, a sealing member 110 may be disposed between the sill beam 10 and the outermost member 520 to seal the battery pack 500. For example, the sealing member 100 may include a washer.

[0069] In one embodiment, a cooling channel 530 may be formed at the lower housing 510 of the battery pack 500, through which a cooling medium flows.

[0070] In one embodiment, the rigid member 200 may be disposed within the sill beam 10 to extend longitudinally along the vehicle.

[0071] refer to Figure 4 The rigid member 200 may have a cavity inside, and a rigid member rib 210 may be formed within the cavity of the rigid member 200, the rigid member rib 210 extending in the same direction as the rigid member 200. Therefore, both lightweight and enhanced stiffness can be ensured simultaneously.

[0072] In one embodiment, the rigid member rib 210 may include: a vertical rib 211 for supporting the upper and lower surfaces of the rigid member 200; and a horizontal rib 212 for supporting the side surfaces of the rigid member 200 and the vertical rib 211.

[0073] In one embodiment, the rigid member 200 may be arranged in the upper space V1 of the sill beam 10, and the support bracket 300 may be arranged in the lower space V2 of the sill beam 10. The fixing bracket 220 may be disposed above the rigid member 200, such that the fixing bracket 220 is connected to the upper surface of the rigid member 200 and the inner surface of the sill beam 10.

[0074] refer to Figure 2 The fixing bracket 220 can be arranged in the area between the upper surface of the rigid member 200 and the inner surface of the sill beam 10, and can be bent in the center so that its opposite ends contact the upper surface of the rigid member 200 and the inner surface of the sill beam 10, respectively. Furthermore, multiple fixing brackets 220 can be provided, such that the multiple fixing brackets 220 are spaced apart from each other in the longitudinal direction of the vehicle. The fixing bracket 220 secures the rigid member 200 to the sill beam 10, thus preventing the rigid member 200 from rotating in the event of an external impact.

[0075] In one embodiment, the support bracket 300 may be disposed within the sill beam 10, with one end connected to the rigid member 200 and the other end connected to the sill beam 10, thereby supporting the rigid member 200.

[0076] refer to Figure 2 and Figure 3 The support bracket 300 can be arranged below the rigid member 200 to support the rigid member 200, and multiple support brackets 300 can be provided such that the multiple support brackets 300 are spaced apart from each other in the longitudinal direction of the vehicle.

[0077] refer to Figure 4 The support bracket 300 can be arranged in the lower space V2 of the sill beam 10 and can be connected to the sill beam 10 and the rigid member 200 to form a column, thereby forming a closed section.

[0078] In one embodiment, the support bracket 300 may be formed with a columnar portion 301 extending in the height direction to effectively support the rigid member 200. Furthermore, the support bracket 300 may be formed with an edge portion 302 that extends after bending at the end of the columnar portion 301 to contact the sill beam 10 or the rigid member 200. The edge portion 302 may contact the inner surface of the sill beam 10 and the lower surface of the rigid member 200.

[0079] In one embodiment, a reinforcing member 320 may be disposed within a support bracket 300. The reinforcing member 320 may have: a surface contact portion 321 for surface contact with the support bracket 300; and an extension portion 322 extending from the end of the surface contact portion 321 toward the side surface of the sill beam 10. Furthermore, a pipe nut 310 may be disposed within the support bracket 300, one end of which is connected to the extension portion 322 of the reinforcing member 320, and the other end of which is connected to the sill beam 10.

[0080] In one embodiment, the face contact portion 321 of the reinforcing member 320 may extend along the height direction to make face contact with the inner surface of the columnar portion 301 of the support bracket 300, and the extension portion 322 may be bent from the end of the face contact portion 321 and extend toward the side surface of the sill beam 10. Therefore, deformation of the support bracket 300 can be prevented when an external impact occurs.

[0081] In one embodiment, one end of the tube nut 310 may be connected to the extension 322 of the reinforcing member 320, and the other end may be connected to the lower surface of the sill beam 10. Furthermore, the tube nut 310 has a tubular shape extending along the height direction, thus assisting in the support of the bracket 300 on the rigid member 200.

[0082] Furthermore, fastener 100 can be connected to pipe nut 310. For example, fastener 100 can be a mounting bolt. In this case, fastener 100 extends through the lower part of sill beam 10 and is inserted into pipe nut 310 and tightened. Therefore, compared to the case where fastener 100 is simply connected to the lower surface of sill beam 10, floor 400 and battery pack 500 can be more securely fixed to sill beam 10.

[0083] As is evident from the above description, the vehicle body according to the embodiments of this disclosure can ensure the safety and driving performance of the vehicle by enhancing side collision safety and NVH performance while achieving weight reduction and increased battery cell installation space.

[0084] The effects achievable by this disclosure are not limited to those described above, and those skilled in the art will understand more clearly from the above detailed description other effects not mentioned in this disclosure.

[0085] Although preferred embodiments of the present disclosure have been disclosed for illustrative purposes, those skilled in the art will understand that various modifications, additions, and substitutions are possible without departing from the scope and spirit of the present disclosure as disclosed in the appended claims.

Claims

1. A vehicle body, comprising: Threshold beam; A rigid member is arranged within the sill beam and extends longitudinally along the sill beam. A support bracket is arranged inside the sill beam, wherein one end of the support bracket is connected to the rigid member and the other end is connected to the sill beam; as well as Fasteners are configured to secure the lower housing of the battery pack to the sill beam.

2. The vehicle body according to claim 1, further comprising: The floor forms the bottom of the vehicle's interior space. The lateral end of the floor is connected to the threshold beam, and The lateral end of the floor is connected to the lower housing of the battery pack.

3. The vehicle body according to claim 2, wherein the floor is formed by a deep drawing process.

4. The vehicle body according to claim 2, wherein the floor comprises: The upper surface is configured to cover the upper part of the battery pack; The side surface extends downward from the lateral end of the upper surface; as well as The flange extends outward from the end of the side surface.

5. The vehicle body according to claim 4, wherein the side surface directly contacts the side surface of the sill beam, and the flange directly contacts the lower surface of the sill beam.

6. The vehicle body according to claim 4, further comprising a first reinforcing member located inside the floor and covering the area where the upper surface and side surface of the floor are connected.

7. The vehicle body according to claim 6, wherein the first reinforcing member, together with the upper surface and side surface of the floor, forms a structure having a closed cross section.

8. The vehicle body according to claim 6, further comprising a second reinforcing member located on the periphery of the floor and disposed in the region between the upper surface of the floor and the side surface of the sill beam, wherein opposite ends of the second reinforcing member respectively contact the upper surface of the floor and the side surface of the sill beam.

9. The vehicle body according to claim 8, wherein the second reinforcement, together with the upper surface of the floor and the side surface of the sill beam, forms a structure having a closed cross section.

10. The vehicle body of claim 1, further comprising a seal, wherein the battery pack includes an outermost member arranged along the lower housing edge of the battery pack, and the fastener is a mounting bolt for securing the outermost member and the seal to the sill beam.

11. The vehicle body according to claim 1, wherein the rigid member includes a cavity and a rigid member rib, the rigid member rib extending in the same direction as the rigid member.

12. The vehicle body according to claim 1, The threshold beam includes an internal space. The internal space is divided into an upper space and a lower space, and The rigid member is located in the upper space, and the support bracket is located in the lower space.

13. The vehicle body according to claim 12, further comprising a fixing bracket, wherein the fixing bracket connects the upper surface of the rigid member to the inner surface of the sill beam.

14. The vehicle body according to claim 1, wherein the support bracket is columnar and connected to the sill beam and the rigid member to form a closed section.

15. The vehicle body according to claim 14, wherein the edge of the support bracket is in surface contact with the sill beam and the rigid member.

16. The vehicle body of claim 14, wherein the support bracket includes a reinforcing member and a tube nut: the reinforcing member includes a face contact portion and an extension portion, the face contact portion being configured to face the support bracket, the extension portion being bent from an end of the face contact portion and extending toward a side surface of the sill beam; one end of the tube nut is connected to the extension portion of the reinforcing member, and the other end is connected to the sill beam.

17. The vehicle body of claim 16, wherein the fastener is inserted into the tube nut and extends through the lower surface of the sill beam.

18. A vehicle body, comprising: A sill beam, comprising a rigid member disposed within the sill beam and extending longitudinally therein, and a support bracket disposed within the sill beam. The floor inside the vehicle; Battery pack, The floor is connected to the threshold beam, and One end of the support bracket is connected to the rigid member and the other end is connected to the threshold beam; and Fasteners that secure the battery pack to the sill beam.

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