Seat mounting structure for vehicle

Abstract

The seat mounting structure may include: a floor panel covering an upper side of the battery accommodating space and provided with a top wall and a bottom wall spaced apart from each other in a vertical direction of the vehicle; and a plurality of partition walls configured to connect the top wall and the bottom wall. The seat mounting structure further includes: a seat mounting reinforcement bracket configured to be inserted into a space formed by the top wall, the bottom wall, and the partition wall; a seat mounted in the upper direction of the floor panel; and a fastening member configured to be fastened by penetrating through the top wall such that the seat is fixed to the floor panel.

Description

Technical Field

[0001] The present disclosure relates to a seat mounting structure for a vehicle. Background Art

[0002] An electric vehicle operates by propelling an electric motor using electricity supplied from a battery installed in the vehicle.

[0003] Therefore, the range of a vehicle depends largely on the energy storage capacity of the battery installed in the vehicle.

[0004] A key challenge in the development of electric vehicles is to ensure a wide range of crash responses while equipping the vehicle with a battery that can store as much electrical energy as possible.

[0005] Recently, in order to increase the number of battery cells mounted on a vehicle, a cell-to-body (CTB) vehicle structure has been developed in which the battery cells are directly mounted on the vehicle body.

[0006] In this case, the battery cells may be located directly beneath a floor panel on which various components, such as vehicle seats, are mounted.

[0007] The law requires that the seat be prevented from falling off even when a certain load is applied while the seat is mounted on the floor panel. Therefore, during seat assembly, it is required that the seat does not affect the battery cells on the lower side (e.g., under the seat) while also ensuring that the seat is securely fixed to the floor panel with sufficient rigidity.

[0008] The foregoing content is only intended to help understanding the background of the present disclosure and is not intended to imply that the background information falls within the scope of the relevant technology known to one of ordinary skill in the art. Summary of the invention

[0009] The present disclosure has been made in consideration of the above-mentioned problems occurring in the related art, and provides a seat mounting structure for a vehicle, which securely fixes a seat to the upper side of a floor panel accommodating a battery storage space at the lower side with sufficient rigidity, thereby ensuring that in the event of a vehicle collision or the like, the seat remains securely supported without being separated from the floor panel. As a result, the vehicle complies with the requirements of various laws and regulations regarding seat mounting and improving passenger safety.

[0010] In order to achieve the above-mentioned purpose, according to the present disclosure, a seat mounting structure for a vehicle can be provided. The seat mounting structure includes: a floor panel covering the upper side of the battery accommodating space and provided with a top wall and a bottom wall, and the top wall and the bottom wall are spaced apart from each other in the up-down direction of the vehicle. The seat mounting structure also includes: a plurality of partition walls configured to connect the top wall and the bottom wall in the up-down direction; a seat mounting reinforcement bracket configured to be inserted into a space defined by the top wall, the bottom wall and the partition wall; a seat mounted in the upper direction of the floor panel; and a fastening member configured to fasten by penetrating the top wall so that the seat is fixed to the floor panel.

[0011] The seat-mounted reinforcement bracket may be provided with a welding nut to which the fastening member is fastened.

[0012] The seat mounting reinforcement bracket may be provided with an upper portion configured to contact the top wall of the floor panel and side portions configured to contact the opposing two partition walls, respectively.

[0013] The partition wall may be integrally provided with a locking rib protruding toward the seat-mounting reinforcement bracket.

[0014] A side portion of the seat-mounted reinforcement bracket may be provided with a curved bent portion configured to contact a lower side of the locking rib.

[0015] The partition wall may extend in the lateral direction of the vehicle body. The seat may be fixed to the floor panel using a seat rail configured to extend in the longitudinal direction of the vehicle body, and the seat mounting reinforcement bracket may extend in the lateral direction of the vehicle body.

[0016] The seat mounting reinforcement bracket may be configured to have a length greater than a lateral width of the seat rail.

[0017] The floor panel may include: a basic floor portion including a top wall; and a mounting floor portion having a top wall configured to have a height higher than that of the top wall of the basic floor portion. In particular, the seat mounting reinforcement bracket is configured to be inserted into the lower side of the top wall of the mounting floor portion.

[0018] In another embodiment of the present disclosure, a seat mounting structure for a vehicle includes: a floor panel, which is made of an extruded material that is constant along the lateral direction of the vehicle body and includes a plurality of closed cross sections. The floor panel surrounds the upper side of the battery accommodating space. The seat mounting structure also includes: a seat mounted in an upper direction of the floor panel; a seat mounting reinforcement bracket configured to be inserted into at least one closed cross section of the floor panel; and a fastening member configured to fix the seat to the seat mounting reinforcement bracket.

[0019] The seat mounting reinforcement bracket may include: side portions extending downwardly along opposite two partition walls constituting a closed cross-section of the floor panel, respectively; and an upper portion connecting the opposite two side portions to each other.

[0020] An upper portion of the seat mounting reinforcement bracket may be provided with a welding nut to which the fastening member is fastened.

[0021] The partition wall of the floor panel may be integrally provided with a locking rib protruding toward the seat mounting reinforcement bracket.

[0022] A curved bent portion may be provided on each side portion of the seat-mounted reinforcement bracket so that when the seat-mounted reinforcement bracket is pulled in the upper direction, movement in the upper direction is restricted by being caught by the locking rib.

[0023] The seat may be fixed to the floor panel using a seat rail that guides the seat to slide in the longitudinal direction relative to the floor panel, and the fastening member may be fastened in a manner that fixes the seat rail to the seat mounting reinforcement bracket.

[0024] The length of the seat mounting reinforcement bracket along the lateral direction of the vehicle body may be greater than the width of the seat rail.

[0025] The floor panel may be formed by connecting a plurality of extruded panels to each other in the front-rear direction of the vehicle body (i.e., the front-rear direction). A closed cross section of the floor panel may form a structure in which a mounting floor portion and a basic floor portion exist simultaneously in an upper direction. The height of the basic floor portion is smaller than the height of the mounting floor portion.

[0026] The seat mounting reinforcement bracket may be configured to be inserted into a closed cross section constituting the mounting floor portion in an upper direction; and the seat rail may be configured to be fixed to the mounting floor portion of the floor panel.

[0027] As described above, the present disclosure provides a seat mounting structure for a vehicle, which is capable of firmly fixing the seat to a floor panel containing a battery storage space underneath with sufficient rigidity, thereby ensuring that in the event of a vehicle collision or similar accident, the seat can remain firmly supported and not separated from the floor panel, thereby complying with the requirements of various laws and regulations regarding seat installation and enhancing passenger safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other objects, features and other advantages of the present disclosure will be more clearly understood from the following detailed description when considered in conjunction with the accompanying drawings, in which:

[0029] Figure 1 is a view showing a seat mounting structure of a vehicle according to an embodiment of the present disclosure;

[0030] Figure 2It is shown in detail Figure 1 Detailed views of the floor panels and seat rails;

[0031] Figure 3 It is shown from Figure 2 The view of the state of the floor panels is omitted;

[0032] Figure 4 It's from below. Figure 2 's view;

[0033] Figure 5 It is shown from Figure 4 The view of the state of the floor panels is omitted;

[0034] Figure 6 It is along Figure 1 A cross-sectional view taken along line VI-VI of ;

[0035] Figure 7 yes Figure 6 A detailed view of component VII; and

[0036] Figure 8 It is along Figure 1 A cross-sectional view taken along line VIII-VIII. DETAILED DESCRIPTION

[0037] Hereinafter, the embodiments disclosed in the present specification are described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of the reference numerals and repeated descriptions thereof are omitted.

[0038] The terms “module” and “part” for components used in the following description are merely given or mixed in consideration of easiness in writing the specification, and they themselves do not have different meanings or roles.

[0039] When describing the embodiments disclosed in the present disclosure, when it is determined that the detailed description of the related known technology may confuse the main points of the embodiments disclosed in the present disclosure, its detailed description has been omitted. In addition, the drawings are only helpful for understanding the embodiments disclosed in the present disclosure, and the technical ideas disclosed herein are not limited by the drawings, and all changes included in the spirit and scope of the present disclosure should be understood to include equivalents or substitutes.

[0040] Terms including ordinal numbers such as first, second, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are only used to distinguish one component from another.

[0041] When a component is referred to as being "connected" or "coupled" to another component, the component may be directly connected or coupled to the other component, but it should be understood that other components may exist between them. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there are no other components between them.

[0042] Unless the context clearly dictates otherwise, singular expressions include plural expressions. When a part, device, element, etc. of the present disclosure is described as having a purpose or performing an operation, function, etc., the part, device, or element should be considered to be "configured to" satisfy the purpose or perform the operation or function.

[0043] In the present specification, terms such as “include” or “have” are intended to indicate the presence of features, quantities, steps, operations, components, parts, or a combination thereof described in the specification, and it should be understood that the possibility of adding or existing one or more other features, quantities, steps, operations, components, parts, or a combination thereof is not excluded.

[0044] In the embodiments of the present disclosure, reference Figures 1 to 8 , the seat mounting structure of the vehicle includes: a floor panel 7, which is located in the upper direction of the battery accommodating space 1 and is provided with a top wall 3 and a bottom wall 5 spaced apart from each other in the upper and lower directions of the vehicle. The seat mounting structure also includes: a plurality of partition walls 9, which are configured to connect the top wall 3 and the bottom wall 5; and a seat mounting reinforcement bracket 11, which is configured to be inserted into the space formed by the top wall 3, the bottom wall 5 and the partition walls 9. The seat mounting structure may also include a seat 13 mounted on the floor panel 7 in the upper direction. The seat mounting structure may also include a fastening member 15, which is configured to be fastened by penetrating the top wall 3 so as to fix the seat 13 to the floor panel 7.

[0045] In other words, the present disclosure is configured to install the seat 13 in the upper direction of the floor panel 7 located in the upper direction of the battery accommodation space 1. Specifically, the seat 13 is fixed to the installation reinforcement bracket 11 inserted into the floor panel 7 using the fastening member 15.

[0046] The battery accommodation space 1 refers to a space that directly accommodates a battery module or a battery cell, and the floor panel 7 is a structure configured to be fastened to the side beams 17 on opposite sides of the vehicle body, thereby constituting the battery accommodation space 1 together with the side beams 17. In this regard, the structure of the present embodiment can be regarded as basically realizing a CTB type vehicle structure in which the battery cell is directly installed inside the vehicle body.

[0047] For reference, here, the lower side of the battery receiving space 1 has a structure surrounded by a separate battery tray 19 .

[0048] This is different from the conventional method of attaching a battery pack containing individual battery cells to the vehicle body.

[0049] Naturally, as mentioned above, the CTB type vehicle structure does not require a battery pack housing, which is a component of a traditional battery pack, etc. Therefore, this not only reduces the weight of the vehicle, but also increases the load capacity of the battery pack, which is conducive to extending the driving range.

[0050] As described above, the floor panel 7 includes a structure having the top wall 3 and the bottom wall 5, which are spaced apart from each other in the up-down direction of the vehicle. Therefore, even when the fastening member 15 for mounting a component such as the seat 13 is fastened to the upper direction of the floor panel 7, it is structurally advantageous to prevent the fastening member 15 from intruding into the lower battery accommodation space 1.

[0051] For reference, the fastening member 15 may be a bolt, a screw, or the like.

[0052] Furthermore, the structure in which the gap between the top wall 3 and the bottom wall 5 is connected by a plurality of partition walls 9 as described above enhances the rigidity of the floor panel 7 itself. As a result, even when a heavy object such as a seat 13 is installed, the structure helps to achieve a strong and stable supporting state. This in turn allows the battery cells accommodated in the lower battery accommodation space 1 to be more safely protected from external influences.

[0053] For reference, the floor panel 7 as described above may be constructed by arranging a plurality of extruded panels to be connected in the front-rear direction of the vehicle body.

[0054] The seat-mounted reinforcement bracket 11 is provided with a welding nut 21 to which the fastening member 15 is fastened.

[0055] The seat-mounted reinforcement bracket 11 has an upper portion 23 in contact with the top wall 3 of the floor panel 7 and side portions 25 , each of the side portions 25 being in contact with a corresponding one of the opposing two partition walls 9 adjacent thereto.

[0056] Therefore, the weld nut 21 is located between the two opposing side portions 25 , and the force applied by the fastening member 15 may be transmitted to the two opposing side portions 25 through the weld nut 21 .

[0057] The partition wall 9 is integrally provided with a locking rib 27 that protrudes toward the seat-mounting reinforcement bracket 11 .

[0058] Furthermore, the side portion 25 of the seat-mounted reinforcement bracket is configured to be provided with a curved bent portion 29 which is configured to be in contact with the lower side of the locking rib 27 .

[0059] Therefore, when the fastening member 15 receives a load pulling in the upward direction, the load is transmitted to the side portion 25 through the weld nut 21 and the upper portion 23 of the seat mounting reinforcement bracket 11. Then, the load is transmitted to the locking rib 27 through the bent portion 29 again.

[0060] Therefore, as described above, the load acting on the fastening member 15 can be dispersed to the upper portion 23 and the opposite two side portions 25 of the seat-mounting reinforcement bracket 11 so as to be supported very firmly and stably.

[0061] For reference, Figure 7 The arrows in illustrative figures show that the load acting on the fastening member 15 in the upper direction is dispersed to the opposite two side portions 25 through the upper portion 23 of the seat-mounting reinforcement bracket 11 .

[0062] The partition walls 9 each extend in the lateral direction of the vehicle body, the seats 13 are each fixed to the floor panel 7 via seat rails 31 extending in the longitudinal direction of the vehicle body, and the seat mounting reinforcement brackets 11 each extend in the lateral direction of the vehicle body.

[0063] Furthermore, the seat-mounted reinforcement bracket 11 has a length greater than the lateral width of the seat rail 31 .

[0064] Therefore, the seat 13 located in the upper direction of the floor panel 7 is firmly fixed to and supported on the floor panel 7 through the seat rails 31 and the fastening members 15. In particular, the fastening members 15 penetrate the top wall 3 of the floor panel 7 and are fastened to the welding nuts 21 of the seat mounting reinforcement brackets 11.

[0065] In one embodiment, the floor panel 7 includes: a basic floor portion 33 in which the top wall 3 has a relatively low height; and a mounting floor portion 35 in which the height of the top wall 3 is set relatively high with respect to the basic floor portion 33. The seat mounting reinforcement bracket 11 is inserted into the lower side of the top wall 3 of the mounting floor portion 35.

[0066] The mounting floor portion 35 is characterized by a relatively high top wall 3, thereby allowing easy insertion of the seat mounting reinforcement bracket 11. Therefore, the seat mounting reinforcement bracket 11 is inserted into the lower side of the top wall 3 of the mounting floor portion 35, thereby improving assemblability and at the same time increasing the section modulus of the portion directly supporting the seat rail 31 and the seat 13. Therefore, this can ensure a more robust mounting state of the seat 13.

[0067] The present disclosure as described above can be expressed as follows.

[0068] In other words, the seat mounting structure of the vehicle of the present disclosure includes: a floor panel 7, which is made of an extruded material that is constant in the lateral direction of the vehicle body, and the cross-sectional shape of the floor panel 7 includes a plurality of closed cross sections. The floor panel 7 surrounds the upper side of the battery accommodating space 1. The seat mounting structure also includes: a seat 13 mounted in the upper direction of the floor panel 7; a seat mounting reinforcement bracket 11, which is configured to be inserted into at least one closed cross section of the floor panel 7; and a fastening member 15, which is configured to fix the seat 13 to the seat mounting reinforcement bracket 11.

[0069] The seat-mounted reinforcement bracket 11 includes: side portions 25 extending downwardly respectively along the opposite two partition walls 9 constituting the closed cross section of the floor panel 7 ; and an upper portion 23 connecting the opposite two side portions 25 .

[0070] The upper portion 23 of the seat-mounted reinforcement bracket 11 is provided with a welding nut 21 to which the fastening member 15 is fastened.

[0071] The partition wall 9 of the floor panel 7 is integrally provided with a locking rib 27 protruding toward the seat-mounting reinforcement bracket 11 .

[0072] A bent kink 29 is provided on each side portion 25 of the seat-mounted reinforcement bracket 11 so that when the seat-mounted reinforcement bracket 11 is pulled in the upper direction, movement in the upper direction is restricted by being caught by the locking rib 27 .

[0073] The seat 13 is configured to be fixed to the floor panel 7 using seat rails 31 that guide the seat 13 to slide in the longitudinal direction relative to the floor panel 7 , and the fastening member 15 is configured to be fastened in a manner that fixes the seat rails to the seat-mounting reinforcement bracket 11 .

[0074] The length of the seat mounting reinforcement bracket 11 in the lateral direction of the vehicle body is set to be larger than the width of the seat rail 31 .

[0075] Therefore, the seat mounting reinforcement bracket 11 can contact the floor panel 7 over a larger area, thereby providing more robust support.

[0076] The floor panel 7 is formed by connecting a plurality of extruded panels in the front-rear direction of the vehicle body, and a closed cross section of the floor panel 7 is a structure in which a mounting floor portion 35 relatively high in the up-down direction and a basic floor portion 33 relatively low in the up-down direction exist simultaneously in the upper direction.

[0077] The seat mounting reinforcement bracket 11 is inserted into a closed cross section constituting the mounting floor portion 35 in the upper direction, and the seat rail 31 is fixed to the mounting floor portion 35 of the floor panel 7 .

[0078] While the present disclosure has been shown and described with respect to the specific embodiments, it will be apparent to those skilled in the art that the present disclosure can be modified and altered in various ways without departing from the technical spirit of the present disclosure provided by the following claims.

Claims

1. A seat mounting structure for a vehicle, the seat mounting structure comprising: a floor panel configured to cover an upper side of the battery accommodation space and including: a top wall and a bottom wall spaced apart from the top wall in an up-down direction of the vehicle; a plurality of partition walls configured to connect the top wall and the bottom wall in the up-down direction; a seat-mounted reinforcement bracket configured to be inserted into a space defined by the top wall, the bottom wall, and the partition wall; a seat mounted above the floor panel; and A fastening member is configured to be fastened by penetrating the top wall so that the seat is fixed to the floor panel.

2. The seat mounting structure according to claim 1, wherein: The seat mounting reinforcement bracket is provided with a welding nut to which the fastening member is fastened.

3. The seat mounting structure according to claim 1, wherein: The seat mounting reinforcement bracket comprises: an upper portion configured to contact a top wall of the floor panel; and The side portions are configured to be in contact with two opposing partition walls, respectively.

4. The seat mounting structure according to claim 3, wherein: The partition wall is integrally provided with a locking rib protruding toward the seat mounting reinforcement bracket.

5. The seat mounting structure according to claim 4, wherein: Side portions of the seat-mounted reinforcement bracket are respectively provided with bent portions configured to contact with lower sides of the locking ribs.

6. The seat mounting structure according to claim 4, wherein: The partition wall extends in the lateral direction of the vehicle body. The seat is fixed to the floor panel using a seat rail configured to extend in the longitudinal direction of the vehicle body, and The seat mounting reinforcement bracket is arranged to extend in the lateral direction of the vehicle body.

7. The seat mounting structure according to claim 6, wherein: The seat mounting reinforcement bracket is configured to have a length greater than a lateral width of the seat rail.

8. The seat mounting structure according to claim 1, wherein: The floor panel comprises: a substantially floor portion including a top wall; and an installation floor portion including a top wall, the top wall of the installation floor portion being configured to have a height higher than that of the top wall of the basic floor portion, Wherein, the seat mounting reinforcement bracket is configured to be inserted into the lower side of the top wall of the mounting floor portion.

9. A seat mounting structure for a vehicle, the seat mounting structure comprising: a floor panel member made of a constant extruded material in a lateral direction of the vehicle body and including a plurality of closed cross sections, the floor panel member being configured to surround an upper side of the battery accommodation space; a seat mounted in an upper direction of the floor panel; a seat-mounted reinforcement bracket configured to be inserted into at least one of the plurality of closed cross-sections of the floor panel; and A fastening member is configured to secure the seat to the seat-mounting reinforcement bracket.

10. The seat mounting structure according to claim 9, wherein: The seat mounting reinforcement bracket comprises: Side portions extending downwardly along two opposing partition walls respectively constituting the plurality of closed cross-sections of the floor panel; and An upper portion connects the side portions to each other.

11. The seat mounting structure according to claim 10, wherein: An upper portion of the seat mounting reinforcement bracket is provided with a welding nut to which the fastening member is fastened.

12. The seat mounting structure according to claim 10, wherein: The partition wall of the floor panel is integrally provided with a locking rib protruding toward the seat mounting reinforcement bracket.

13. The seat mounting structure according to claim 12, wherein: A bent portion is provided on each side of the seat-mounted reinforcement bracket, so that when the seat-mounted reinforcement bracket is pulled in an upward direction, it is restricted from moving in the upward direction by being caught by the locking rib.

14. The seat mounting structure according to claim 9, wherein: The seat is fixed to the floor panel using seat rails that guide the seat to slide in a longitudinal direction relative to the floor panel, and The fastening member is fastened in such a manner as to fix the seat rail to the seat mounting reinforcement bracket.

15. The seat mounting structure according to claim 14, wherein: The length of the seat mounting reinforcement bracket along the lateral direction of the vehicle body is greater than the seat rail width of the seat rail.

16. The seat mounting structure according to claim 14, wherein: The floor panel is formed by connecting a plurality of extruded panels to each other in a front-rear direction of the vehicle body; and The plurality of closed cross sections of the floor panel form a structure in which a mounting floor portion and a basic floor portion exist simultaneously in an upper direction, wherein a height of the basic floor portion is smaller than a height of the mounting floor portion.

17. The seat mounting structure according to claim 16, wherein: The seat mounting reinforcement bracket is configured to be inserted into the closed cross section constituting the mounting floor portion in an upper direction; and The seat rail is configured to be fixed to a mounting floor portion of the floor panel.

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