Vehicle floor structure, vehicle body, battery and vehicle

Abstract

The utility model provides a vehicle floor structure, a vehicle body, a battery and a vehicle. The threshold beams are arranged on the two opposite sides of the floor body; the first beam body is arranged on the floor body, and an angle is formed between the length direction of the first beam body and the length direction of the doorsill beam; the reinforcing piece is arranged between the first beam body and the doorsill beam, one side of the reinforcing piece is connected to the doorsill beam, and the other side of the reinforcing piece is connected to the first beam body; according to the vehicle floor structure, the doorsill beam and the first beam body are connected into a whole through the reinforcing piece, and the overall strength of the vehicle floor structure is improved; meanwhile, under the condition that one side of the vehicle is collided, the reinforcing piece can further deform before the floor body and the first beam body and absorb energy generated by collision in the deformation process, so that structures such as a seat and a battery are protected, and the effect of protecting passengers is achieved.

Description

Technical Field

[0001] The present application belongs to the field of vehicle technology, and in particular relates to a vehicle floor structure, a vehicle body, a battery and a vehicle. Background Art

[0002] The vehicle body structure includes a vehicle body floor, on which seats may be arranged, including front seats and rear seats, etc. In an electric vehicle, a battery may be arranged below the vehicle body floor.

[0003] The vehicle body floor needs to have a certain strength to protect the seats, batteries and other structures. The existing vehicle body floor lacks a force transmission structure during a side collision, and the overall strength is relatively poor. It is easy to deform when subjected to a side collision and has low safety performance. Utility Model Content

[0004] In view of the above problems, the present application provides a vehicle floor structure, a vehicle body, a battery and a vehicle, which can alleviate the problem of poor overall strength of the current vehicle floor structure.

[0005] In a first aspect, some embodiments of the present application provide a vehicle floor structure, comprising:

[0006] Floor body;

[0007] A threshold beam is arranged at opposite sides of the floor body along the width direction of the floor body;

[0008] A first beam body is arranged on the floor body, and a length direction of the first beam body is arranged at an angle to a length direction of the threshold beam;

[0009] The reinforcement member is arranged between the first beam body and the threshold beam, one side of the reinforcement member is connected to the threshold beam, and the other side of the reinforcement member is connected to the first beam body.

[0010] In the technical solution of this embodiment, a reinforcement is arranged between the first beam and the threshold beam, and one side of the reinforcement is connected to the threshold beam, and the other side of the reinforcement is connected to the first beam. In the width direction of the floor body, the threshold beam and the first beam are connected as a whole through the reinforcement, thereby increasing the overall strength of the vehicle floor structure; when one side of the vehicle is hit, the force of the collision can be transmitted to the first beam through the threshold beam and the reinforcement on the corresponding side, and then transmitted to the other threshold beam on the opposite side through the first beam, so that the entire vehicle floor structure can participate in buffering the collision energy, thereby improving the overall strength of the vehicle floor structure, and can better protect structures such as seats and batteries, and can also play a role in protecting occupants; at the same time, when one side of the vehicle is hit, the reinforcement can also be deformed before the floor body and the first beam, and absorb the energy generated by the collision during the deformation process, thereby further protecting structures such as seats and batteries, and better playing a role in protecting occupants.

[0011] In some embodiments, the reinforcement member has a crumple space therein.

[0012] In the technical solution of this embodiment, a crumple space is provided in the reinforcement to make the reinforcement more easily deformed, thereby facilitating the absorption of energy generated by the collision through the deformation of the reinforcement and reducing the collision energy transmitted to the floor body and the first beam, thereby better protecting structures such as seats and batteries and occupants.

[0013] In some embodiments, the reinforcement includes a first connection portion and a second connection portion connected to the first connection portion, the first connection portion is connected to the threshold beam, the second connection portion is connected to the first beam body, and a collapse space is formed between the first connection portion and the second connection portion.

[0014] The technical solution of this embodiment provides some specific structures of reinforcements, so that the reinforcements can be connected to the door sill beam and the first beam body, and a crumple space can be formed; when one side of the vehicle is hit and the door sill beam is deformed, the first connecting part can deform along with the door sill beam and deform into the crumple space. At this time, part of the energy generated by the collision can be absorbed by the deformation of the first connecting part, and the remaining energy can be transmitted to the first beam body through the second connecting part, and then transmitted to the floor body through the door sill beam, thereby reducing the damage of the collision energy to structures such as seats and batteries and to occupants.

[0015] In some embodiments, there are at least two first beams, and the at least two first beams are arranged at intervals along the length direction of the floor body;

[0016] The number of the second connection parts is the same as that of the first beam bodies, and each second connection part is respectively connected to one first beam body.

[0017] In the technical solution of this embodiment, there are multiple first beams and they are arranged at intervals, so that the collision energy transmitted from the reinforcement can be dispersed to the multiple first beams and the energy borne by a single first beam is reduced, thereby making the first beam less likely to deform and enabling the first beam to better protect structures such as seats and batteries and occupants; the reinforcement includes multiple second connecting parts, so that the first connecting part can disperse and transmit the energy generated by the collision to the multiple first beams through the multiple second connecting parts, thereby reducing the energy borne by each first beam.

[0018] In some embodiments, the reinforcement member is made of metal.

[0019] The technical solution of this embodiment provides some specific materials for the reinforcements, so that the reinforcements are made of metal, so that the reinforcements have a certain strength and are not easily deformed when the vehicle is subjected to a slight collision, thereby improving the stability of the reinforcements.

[0020] In some embodiments, the material of the reinforcement member includes iron-carbon alloy and / or aluminum.

[0021] The technical solution of this embodiment further provides some specific materials for the reinforcements so that the reinforcements can have higher strength, thereby improving the stability of the reinforcements; at the same time, the materials of the sill beam and the first beam body generally also include iron-carbon alloy and / or aluminum. This arrangement also facilitates better connection of the reinforcements to the sill beam and the first beam body.

[0022] In some embodiments, the reinforcement is formed by an extrusion process.

[0023] In the technical solution of this embodiment, the reinforcement is formed by an extrusion molding process. Since the extrusion molding process can harden the reinforcement during molding, the mechanical properties of the reinforcement can be improved. At the same time, the extrusion molding process has a high molding efficiency and a low manufacturing cost.

[0024] In some embodiments, in the width direction of the first beam body, the first beam body includes two third connection parts that are spaced apart, and the two third connection parts are respectively connected to the floor body;

[0025] An intermediate portion is provided between the two third connecting portions, and the intermediate portion is spaced apart from the floor body along the height direction of the first beam body.

[0026] The technical solution of this embodiment provides some specific structures of the first beam body. Through the spacing between the middle part and the floor body, a cavity structure is formed in the first beam body, thereby reducing the weight of the first beam body and reducing the production cost of the first beam body.

[0027] In some embodiments, the first beam body further includes a reinforcement portion, the reinforcement portion is formed by bending a portion of the middle portion toward the floor body, and the reinforcement portion is connected to the floor body;

[0028] In the width direction of the first beam body, the reinforcing portion and the two third connecting portions are arranged at intervals.

[0029] The technical solution of this embodiment further provides some specific structures of the first beam body, so that the first beam body can be connected to the floor body through two connecting parts and a reinforcement part, thereby improving the connection stability between the first beam body and the floor body; at the same time, this arrangement can also reduce the volume of the cavity in the first beam body, thereby enhancing the strength of the first beam body and its ability to withstand collision energy.

[0030] In some embodiments, the vehicle floor structure further includes a second beam body, which is disposed on the other side of the floor body and opposite to the first beam body.

[0031] In the technical solution of this embodiment, the energy borne by the floor body is further dispersed through the second beam body to increase the strength of the floor body and reduce the deformation of the floor body when the vehicle is hit, thereby reducing the damage caused by the collision energy to structures such as batteries and to occupants.

[0032] In some embodiments, opposite ends of the second beam body are respectively connected to the door sill beam.

[0033] In the technical solution of this embodiment, the collision energy borne by the sill beam can be directly transferred to the second beam body, and then transferred to the other opposite sill beam through the second beam body, so as to further disperse the collision energy borne by the sill beam and further improve the overall strength of the vehicle floor structure.

[0034] In some embodiments, in the thickness direction of the floor body, a projection of the second beam on the floor body at least partially overlaps with a projection of the first beam on the floor body.

[0035] In the technical solution of this embodiment, at least a portion of the second beam body is able to be opposite to the first beam body in the thickness direction of the floor body, so as to further strengthen the strength of the floor body at the position where the first beam body and the second beam body are located, and can also reduce the deformation of the floor body at the position where the first beam body and the second beam body are located in the event of a side collision, thereby improving the overall strength of the vehicle floor structure and improving the impact and collision resistance of the vehicle floor structure.

[0036] In some embodiments, the second beam is bonded to the floor body.

[0037] In the technical solution of this embodiment, the second beam is bonded to the floor body. Since the second beam and the battery cell are on the same side of the floor body, this arrangement can reduce the negative impact that the connection structure between the second beam and the floor body may have on the battery cell.

[0038] In a second aspect, some embodiments of the present application further provide a vehicle body, comprising the vehicle floor structure provided by some embodiments of the first aspect.

[0039] In a third aspect, some embodiments of the present application further provide a battery, comprising:

[0040] A box body, the box body including a top plate, the top plate being used as at least a part of a floor body in a vehicle floor structure;

[0041] The first beam body is arranged on the top plate;

[0042] The reinforcement member is arranged at opposite ends of the first beam body along the width direction of the top plate, one side of the reinforcement member is connected to the first beam body, and the other side of the reinforcement member is used to be connected to the threshold beam.

[0043] The technical solution of this embodiment increases the overall strength of the battery box; when one side of the vehicle is hit, the force of the collision can be transmitted to the first beam body through the sill beam and the reinforcement on the corresponding side, and then transmitted to the other sill beam on the opposite side through the first beam body, so that the entire box can participate in buffering the collision energy, thereby improving the overall strength of the vehicle floor structure and better protecting structures such as batteries.

[0044] In some embodiments, the battery further includes a second beam body, which is disposed on the other side of the top plate and opposite to the first beam body, and is used to support the battery cells in the box body.

[0045] In the technical solution of this embodiment, the energy borne by the top plate is further dispersed through the second beam body to increase the strength of the top plate and reduce the deformation of the top plate when the vehicle is hit, thereby reducing the damage caused by the collision energy to structures such as the battery and to the occupants; at the same time, the second beam body can also play a role in suppressing the expansion and deformation of the battery cell, reducing the deformation of the battery cell during use, and improving the safety performance of the battery cell.

[0046] In some embodiments, opposite ends of the second beam body are respectively connected to the side walls of the box body, or opposite ends of the second beam body are used to be connected to the threshold beam.

[0047] In the technical solution of this embodiment, the collision energy borne by the sill beam or the box side wall can be directly transmitted to the second beam body, and then transmitted to the opposite sill beam or box side wall through the second beam body, so as to further disperse the collision energy borne by the sill beam and the box side wall, and further improve the overall strength of the vehicle floor structure.

[0048] In a fourth aspect, some embodiments of the present application further provide a vehicle, comprising the vehicle body provided by some embodiments of the second aspect, or the battery provided by some embodiments of the third aspect.

[0049] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0051] Figure 1 A schematic diagram of the structure of a vehicle provided for some embodiments of the present application.

[0052] Figure 2 Schematic diagram of the exploded structure of a battery provided in some embodiments of the present application.

[0053] Figure 3 A three-dimensional schematic diagram of a vehicle floor structure provided in some embodiments of the present application.

[0054] Figure 4 A schematic three-dimensional diagram of a reinforcement member in a vehicle floor structure provided in some embodiments of the present application.

[0055] Figure 5 for Figure 3 A local enlarged schematic diagram of point A in the middle.

[0056] Figure 6 A schematic top view of a vehicle floor structure provided in some embodiments of the present application.

[0057] Figure 7 for Figure 6 Schematic cross-sectional view at the middle BB.

[0058] Figure 8 A bottom view schematically showing a vehicle floor structure provided in some embodiments of the present application.

[0059] Fig. 9 A schematic side view of a vehicle floor structure provided in accordance with some embodiments of the present application.

[0060] The meanings of the marks in the figure are:

[0061] 1000. Vehicles;

[0062] 100. Vehicle floor structure;

[0063] 10. Floor body;

[0064] 20. Threshold beam;

[0065] 30. first beam body; 31. third connecting portion; 32. middle portion; 33. reinforcement portion;

[0066] 40. reinforcement member; 401. collapse space; 41. first connection portion; 42. second connection portion;

[0067] 50. The second beam;

[0068] 200. Battery;

[0069] 60, box body; 61, upper box body; 611, top plate; 62, lower box body;

[0070] 70. Battery cells;

[0071] 300, motor;

[0072] 400. Controller. DETAILED DESCRIPTION

[0073] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0074] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0075] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0076] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0077] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0078] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0079] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0080] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0081] In electric vehicles, the vehicle's floor structure is used not only to provide a fixed foundation for seats and to carry passengers and cargo, but also to protect the batteries in the vehicle.

[0082] At present, the collision safety performance of vehicles is mostly focused on the working conditions of frontal collision (for example, by setting energy absorption boxes, front longitudinal beams and other structures at the front of the vehicle to enhance the frontal collision safety performance), while ignoring the safety performance of the vehicle in the case of side collision. In the case of a side collision of the vehicle, the vehicle floor structure is prone to deformation, which can easily cause damage to structures such as seats and batteries. Damaged seats are prone to deformation and easily cause injuries to occupants, while damaged batteries are prone to fire or even explosion.

[0083] According to the above analysis, the strength of the vehicle floor structure is very important for the side impact safety performance of the vehicle. In order to improve the side impact safety performance of the vehicle floor structure, the thickness of the floor can be increased or a reinforcing beam can be added, but this design will increase the weight of the vehicle floor structure and lead to an increase in the weight of the entire vehicle, thereby increasing the energy consumption of the vehicle and increasing the cost of the vehicle.

[0084] At present, there are some vehicle floor structures that separate the floor and the door sill beam and set an energy-absorbing structure between the two. Although this setting can absorb part of the energy generated by the side collision through the energy-absorbing structure, the integrity of the vehicle floor structure is low. The energy not absorbed by the energy-absorbing structure will directly act on the adjacent floor, which can easily cause a large deformation of the floor, and then cause damage to the seats, batteries and occupants.

[0085] Based on the above considerations, in order to improve the overall strength of the vehicle floor structure to improve its side impact performance, an embodiment of the present application provides a vehicle floor structure, in which a sill beam is connected to opposite sides of a floor body, and a first beam body is arranged on the floor body; at the same time, a reinforcement member is arranged between the sill beam and the first beam body, so that the sill beam and the first beam body are connected as one through the reinforcement member.

[0086] In such a vehicle floor structure, the floor body, the door sill beam, the reinforcement and the first beam are all interconnected. When a collision occurs on one side of the vehicle floor structure, the energy generated by the collision can be dispersed to various parts of the vehicle floor structure, so that each structure of the vehicle floor structure can participate in the absorption of the collision energy, thereby improving the integrity of the vehicle floor structure and the overall strength of the vehicle floor structure. When a collision occurs on one side of the vehicle, the reinforcement can also deform before the floor body and the first beam, and absorb the energy generated by the collision during the deformation process, thereby further protecting structures such as seats and batteries, and better protecting occupants. At the same time, the first beam can also be used as a seat beam to install seats, and the floor body can also be used as a partial box for the battery, thereby reducing the negative impact of the reinforcement on the vehicle weight.

[0087] The vehicle floor structure 100 disclosed in the embodiment of the present application may be a floor structure of a front body of the vehicle 1000 , and may also be applied to other positions of the vehicle 1000 .

[0088] refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 200 is provided inside the vehicle 1000, and the battery 200 may be provided at the bottom, head or tail of the vehicle 1000. The battery 200 may be used to power the vehicle 1000, for example, the battery 200 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 400 and a motor 300, and the controller 400 is used to control the battery 200 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0089] In some embodiments of the present application, the battery 200 can not only serve as the operating power source of the vehicle 1000, but also serve as the driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0090] refer to Figure 2 , Figure 2An exploded view of a battery 200 provided in some embodiments of the present application. The battery 200 includes a box 60 and a battery cell 70, and the battery cell 70 is contained in the box 60. Among them, the box 60 is used to provide a storage space for the battery cell 70, and the box 60 can adopt a variety of structures. In some embodiments, the box 60 may include an upper box 61 and a lower box 62, and the upper box 61 and the lower box 62 cover each other, and the upper box 61 and the lower box 62 jointly define a storage space for accommodating the battery cell 70. The lower box 62 can be a hollow structure with one end open, and the upper box 61 can be a plate-like structure. The upper box 61 covers the open side of the lower box 62, so that the upper box 61 and the lower box 62 jointly define a storage space; the upper box 61 and the lower box 62 can also be hollow structures with one side open, and the open side of the upper box 61 covers the open side of the lower box 62. Of course, the box body 60 formed by the upper box body 61 and the lower box body 62 can be in various shapes, such as a cylinder, a cuboid, etc.

[0091] In the battery 200, there may be multiple battery cells 70, and the multiple battery cells 70 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 70 are both connected in series and in parallel. The multiple battery cells 70 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 70 is accommodated in the box 60; of course, the battery 200 may also be a battery 200 module formed by connecting multiple battery cells 70 in series, in parallel, or in a mixed connection, and then the multiple battery 200 modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 60. The battery 200 may also include other structures, for example, the battery 200 may also include a converging component for realizing electrical connection between the multiple battery cells 70.

[0092] Each battery cell 70 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 70 may be cylindrical, flat, rectangular, or in other shapes.

[0093] refer to Figure 3 In the first aspect, some embodiments of the present application provide a vehicle floor structure 100. In the figure, the direction of the X-axis is the length direction of the vehicle floor structure 100, the direction of the Y-axis is the width direction of the vehicle floor structure 100, and the direction of the Z-axis is the thickness direction of the vehicle floor structure 100.

[0094] The vehicle floor structure 100 includes a floor body 10, a threshold beam 20, a first beam body 30 and a reinforcement member 40. The floor body 10 can be used as a part of a battery 200 housing 60; the threshold beam 20 is arranged on opposite sides of the floor body 10 along the width direction (Y) of the floor body 10; the first beam body 30 is arranged on the floor body 10, and the length direction of the first beam body 30 is arranged at an angle to the length direction of the threshold beam 20; the reinforcement member 40 is arranged between the first beam body 30 and the threshold beam 20, one side of the reinforcement member 40 is connected to the threshold beam 20, and the other side of the reinforcement member 40 is connected to the first beam body 30.

[0095] The floor body 10 refers to a structure in the vehicle floor structure 100 that is used to provide a fixed foundation for other structures. Structures such as the door sill beam 20 and the first beam body 30 can be connected to the floor body 10. At the same time, the floor body 10 is also used to carry passengers, cargo, etc.; the shape of the floor body 10 can be rectangular, hexagonal or other shapes; the material of the floor body 10 can include metal or non-metallic materials.

[0096] The floor body 10 can be used as a part of the box 60 of the battery 200. For example, the floor body 10 can be used as the top plate 611 of the box 60. In this case, the battery 200 and the vehicle floor structure 100 are integrated, thereby reducing the number of parts and reducing the overall weight of the vehicle 1000. In some embodiments, the floor body 10 can be used as the upper box 61 of the box 60. In this case, the lower box 62 is connected to the floor body 10 and encloses the internal space of the box 60 with the floor body 10 to accommodate the battery cells 70.

[0097] The floor body 10 may also be used only to provide a fixed foundation for the battery 200 box 60 , seats and other structures. For example, the battery 200 box 60 is a complete independent structure, and its upper box 61 is connected to the floor body 10 .

[0098] The threshold beam 20 refers to a beam structure in the vehicle floor structure 100 used as a beam structure under the door of the vehicle 1000. The threshold beam 20 can be a square beam, a circular beam or a beam structure of other shapes. The threshold beam 20 can also be a beam structure of an irregular shape. The material of the threshold beam 20 can include metal or non-metal materials.

[0099] The threshold beam 20 is disposed on opposite sides of the floor body 10 along the width direction (Y) thereof. The threshold beam 20 can be fixedly connected to the floor body 10 by welding, bonding, etc., or can be detachably connected to the floor body 10 by snapping, screwing, etc.

[0100] The first beam body 30 refers to the beam structure in the vehicle floor structure 100, and the first beam body 30 is used to increase the strength of the floor body 10; the first beam body 30 can also be used for seat installation, and at this time the first beam body 30 should be above the floor body 10; the shape of the first beam body 30 can be a rectangular parallelepiped, a trapezoidal prism or other shapes, and the shape of the first beam body 30 can also be an irregular shape; the material of the first beam body 30 can include metal or non-metallic materials; there can be one first beam body 30, or there can be two or more.

[0101] The first beam body 30 is disposed on the floor body 10 . The first beam body 30 can be fixedly connected to the floor body 10 by welding, gluing, etc., or can be detachably connected to the floor body 10 by screwing, clamping, etc.

[0102] The first beam 30 is arranged at an angle to the sill beam 20, so that when the vehicle 1000 is hit from the side, the first beam 30 can better strengthen the floor body 10 and suppress the deformation of the floor body 10. In the case where the first beam 30 is a seat beam, the first beam 30 and the sill beam 20 are arranged at an angle to adapt to the arrangement of seats in the vehicle 1000 and reduce the occupation of the first beam 30 on the passenger space of the vehicle 1000. At this time, the seats installed on the first beam 30 can be arranged along the width direction (Y) of the floor body 10, and the first beam 30 can be blocked by the seats and will not be exposed in the passenger space, thereby reducing the interference with the passenger's driving.

[0103] For example, the length direction of the first beam body 30 is parallel to the width direction (Y) of the floor body 10, that is, the length direction of the first beam body 30 is perpendicular to the length direction of the threshold beam 20, so that the first beam body 30 can better provide support for the threshold beam 20 and facilitate the installation of seats. At the same time, after the seats are installed, the first beam body 30 is not easily exposed in the passenger compartment, so it is not easy to cause interference to the passengers.

[0104] The reinforcement 40 is arranged between the first beam body 30 and the threshold beam 20, one side of the reinforcement 40 is connected to the threshold beam 20, and the other side is connected to the first beam body 30, that is, the reinforcement 40 is used to connect the threshold beam 20 and the first beam body 30; the reinforcement 40 can be a square beam structure, a trapezoidal beam structure or a long strip beam structure of other shapes, or a block structure of a tetrahedron, a cube or other shapes; the reinforcement 40 can be a solid structure, or a cavity can be set inside the reinforcement 40; the material of the reinforcement 40 can include metal or non-metallic materials; the reinforcement 40 can be fixedly connected to the threshold beam 20 and the first beam body 30 by welding, gluing, etc., and can also be detachably connected to the threshold beam 20 and the first beam body 30 by screwing, clamping, etc.

[0105] It is understandable that the reinforcement 40 can also be connected to the floor body 10. For example, the reinforcement 40 is connected to the threshold beam 20 and the first beam body 30 on opposite sides along the width direction (Y) of the floor body 10, and the side of the reinforcement 40 facing the floor body 10 is connected to the floor body 10.

[0106] The reinforcement 40 connected to the sill beam 20 can increase the strength of the sill beam 20, that is, the sill beam 20 can have higher strength at the position where the reinforcement 40 is located. When the vehicle 1000 is hit from the side, the sill beam 20 is less likely to deform at the position where the reinforcement 40 is located.

[0107] The reinforcement 40 is connected to the threshold beam 20 and the first beam body 30, and the threshold beam 20 is connected to the floor body 10. This arrangement can increase the overall performance of the vehicle floor structure 100. When the vehicle 1000 is subjected to a side collision, the collision energy received by the threshold beam 20 can be transmitted to the reinforcement 40 and the floor body 10, and the energy received by the reinforcement 40 can be further transmitted to the first beam body 30, and then transmitted to the threshold beam 20 on the other side via the first beam body 30. That is, under the transmission of the reinforcement 40 and the first beam body 30, the energy generated by the collision can be better dispersed to the entire vehicle floor structure 100, thereby reducing the damage to structures such as seats and batteries 200 and to occupants caused by local large-scale deformation of the vehicle floor structure 100.

[0108] When the vehicle 1000 is hit from the side, the hit threshold beam 20 first bears the energy of the collision. At this time, the threshold beam 20 can be deformed to absorb part of the collision energy and transfer the remaining energy to the reinforcement 40 and the floor body 10; the reinforcement 40 can be deformed to absorb part of the collision energy and transfer the remaining energy to the first beam body 30, and then to the threshold beam 20 on the other side. In such an energy transfer path, each structure in the vehicle floor structure 100 can participate in the energy absorption, thereby reducing the damage of the collision energy to the structures such as the seat and the battery 200 and to the occupants; at the same time, it can also reduce the situation where a large amount of collision energy is concentrated on some structures, causing significant deformation of the structure or even fracture failure.

[0109] In this embodiment, a reinforcement 40 is provided between the first beam body 30 and the sill beam 20. In the width direction of the floor body 10, the sill beam 20 and the first beam body 30 are connected as a whole through the reinforcement 40, thereby increasing the overall strength of the vehicle floor structure 100. When one side of the vehicle 1000 is hit, the force of the collision can be transmitted to the first beam body 30 through the sill beam 20 and the reinforcement 40 on the corresponding side, and then transmitted to the other sill beam 20 on the opposite side through the first beam body 30, so that the entire vehicle floor structure 100 can participate in buffering the collision energy, thereby improving the overall strength of the vehicle floor structure 100, and better protecting structures such as seats and batteries 200, and also protecting passengers. At the same time, when one side of the vehicle 1000 is hit, the reinforcement 40 can also be deformed before the floor body 10 and the first beam body 30, and absorb the energy generated by the collision during the deformation process, thereby further protecting structures such as seats and batteries 200, and better protecting passengers.

[0110] refer to Figure 3 , Figure 4 In some embodiments, the reinforcement member 40 has a crush space 401 therein.

[0111] The collapse space 401 refers to a hollow structure formed in the reinforcement 40. The collapse space 401 may be connected to the space outside the reinforcement 40, or may be a closed space. The collapse space 401 may be a rectangular space, a spherical space, or other space structures of regular shapes, or may be an irregular space structure. According to the structure of the reinforcement 40, the collapse space 401 may be formed by enclosing different parts of the reinforcement 40, or may be formed by drilling holes, hollowing out, etc. in the reinforcement 40.

[0112] When one side of the vehicle 1000 is hit, the setting of the crumple space 401 can make the reinforcement 40 more likely to deform when subjected to the collision energy, so that the reinforcement 40 can absorb more energy and reduce the collision energy transmitted to the floor body 10 and the first beam 30, thereby better protecting structures such as seats and batteries 200 and occupants.

[0113] At the same time, the provision of the crumple space 401 can also reduce the weight of the reinforcement 40 , thereby reducing the negative impact that the reinforcement 40 may have on the overall weight of the vehicle 1000 .

[0114] It is understandable that when the vehicle 1000 is subjected to a slight collision, the reinforcement 40 should not be easily deformed, but when the vehicle 1000 is subjected to a severe collision, the reinforcement 40 should be more easily deformed. Accordingly, the energy threshold generated by the impact corresponding to the deformation of the reinforcement 40 can be set according to requirements, and accordingly, the ratio of the volume of the crumple space 401 to the overall volume of the reinforcement 40 can be set according to requirements, so that the reinforcement 40 can have a certain strength and can be more easily deformed when subjected to a severe collision.

[0115] refer to Figure 4 In some embodiments, the reinforcement 40 includes a first connection portion 41 and a second connection portion 42 connected to the first connection portion 41 , the first connection portion 41 is connected to the threshold beam 20 , the second connection portion 42 is connected to the first beam body 30 , and a collapse space 401 is formed between the first connection portion 41 and the second connection portion 42 .

[0116] The first connection portion 41 refers to a structure in the reinforcement 40 used to connect with the threshold beam 20. The first connection portion 41 can also be used to provide a fixing basis for structures such as the second connection portion 42; the shape of the first connection portion 41 can be a flat plate, and the shape of the first connection portion 41 can also be L-shaped, door-shaped or other regular or irregular shapes; the material of the first connection portion 41 can include metal or non-metallic materials; the first connection portion 41 can be fixedly connected to the threshold beam 20 by welding, gluing, etc., and can also be detachably connected to the threshold beam 20 by screwing, clamping, etc.

[0117] It is understandable that the first connection portion 41 may also be connected to the floor body 10 to further improve the integrity of the vehicle floor structure 100 .

[0118] The second connection portion 42 refers to a structure in the reinforcement 40 used to connect to the first beam body 30. The shape of the second connection portion 42 can be a flat plate, or an L-shape, a gate shape, or other regular or irregular shapes; the material of the second connection portion 42 can include metal or non-metallic materials; the second connection portion 42 can be fixedly connected to the first beam body 30 by welding, gluing, etc., or can be detachably connected to the first beam body 30 by screwing, clamping, etc. The second connection portion 42 can be connected to the first connection portion 41 by welding, gluing, etc., or can be integrally formed with the first connection portion 41.

[0119] There may be one or more second connection parts 42; depending on the number of first beam bodies 30, the second connection parts 42 may be connected to the first beam bodies 30 one by one, or two or more second connection parts 42 may be connected to the same first beam body 30, or multiple first beam bodies 30 may be connected to the same second connection part 42.

[0120] A collapse space 401 can be formed between the first connection part 41 and the second connection part 42. According to the structure of the first connection part 41 and the second connection part 42, the collapse space 401 can be connected to the outside or can be a closed space, and the collapse space 401 can also have different shapes. For example, the first connection part 41 and the second connection part 42 can be arranged at intervals to form a collapse space 401 that is connected to the space outside the reinforcement 40 between the first connection part 41 and the second connection part 42; for another example, the first connection part 41 and the second connection part 42 can also be a box-shaped structure with an open end and a cavity, so that the first connection part 41 can be buckled with the second connection part 42, and the closed collapse space 401 is formed through the cavities of the two.

[0121] In some embodiments, the first connection portion 41 is a Z-shaped structure, the first connection portion 41 has two side surfaces connected to the threshold beam 20, and the two side surfaces are respectively connected to different sides of the threshold beam 20, and the first connection portion 41 also has a side surface facing the floor body 10 and connected to the floor body 10; the second connection portion 42 is an L-shaped structure, the second connection portion 42 is connected to the side of the first connection portion 41 away from the threshold beam 20; the second connection portion 42 and the first connection portion 41 enclose a rectangular collapse space 401, and both ends of the collapse space 401 along the length direction (X) of the floor body 10 are connected to the space outside the reinforcement 40.

[0122] In this embodiment, the reinforcement 40 can be connected to the rocker beam 20 and the first beam body 30, and a crumple space 401 can be formed; when one side of the vehicle 1000 is hit and the rocker beam 20 is deformed, the first connecting portion 41 can deform along with the rocker beam 20 and deform into the crumple space 401. At this time, part of the energy generated by the collision can be absorbed by the deformation of the first connecting portion 41, and the remaining energy can be transmitted to the first beam body 30 through the second connecting portion 42, and then transmitted to the floor body 10 through the rocker beam 20, thereby reducing the damage of the collision energy to structures such as the seat and the battery 200 and to the occupants.

[0123] refer to Figure 3 In some embodiments, there are at least two first beam bodies 30 , and the at least two first beam bodies 30 are arranged at intervals along the length direction (X) of the floor body 10 .

[0124] There may be two, three or more first beam bodies 30; multiple first beam bodies 30 can better disperse the collision energy transmitted by the reinforcement 40 to reduce the energy borne by a single first beam body 30; at least two first beam bodies 30 are arranged at intervals to facilitate the installation of seats and to better disperse the collision energy transmitted by the reinforcement 40.

[0125] In this embodiment, there are multiple first beam bodies 30 and they are arranged at intervals, so that the collision energy transmitted from the reinforcement 40 can be dispersed to the multiple first beam bodies 30 and the energy borne by a single first beam body 30 is reduced, thereby making the first beam body 30 less likely to deform and enabling the first beam body 30 to better protect structures such as seats and batteries 200 and occupants.

[0126] refer to Figure 3 , Figure 4 In some embodiments, the number of the second connection portions 42 is the same as the number of the first beam bodies 30 , and each second connection portion 42 is connected to one first beam body 30 .

[0127] Each second connection portion 42 is respectively connected to a first beam body 30, which means that the second connection portion 42 is connected to the first beam body 30 in a one-to-one correspondence, and there is a crumple space 401 surrounded by the second connection portion 42 and the first connection portion 41 at one end of each first beam body 30. When the vehicle 1000 is subjected to a side collision, the first connection portion 41 and the reinforcement 40 on one side of each first beam body 30 will first deform to absorb part of the energy, thereby reducing the energy borne by each first beam body 30.

[0128] At the same time, connecting the second connecting portions 42 to the first beam bodies 30 in a one-to-one correspondence also enables the reinforcement member 40 to better disperse and transfer energy to each first beam body 30 through each second connecting portion 42 , thereby reducing the energy borne by each first beam body 30 .

[0129] In this embodiment, the reinforcement member 40 includes a plurality of second connection portions 42 , so that the first connection portion 41 can disperse and transfer the energy generated by the collision to the plurality of first beams 30 through the plurality of second connection portions 42 , thereby reducing the energy borne by each first beam 30 .

[0130] In some embodiments, the material of the reinforcement 40 is metal, that is, the material of the first connecting part 41 and the second connecting part 42 are both metal; for example, the material of the reinforcement 40 can include pure metal elements such as aluminum and titanium, and can also include alloys such as iron-carbon alloys (such as steel) and aluminum alloys.

[0131] Since the reinforcement 40 is connected to the threshold beam 20, the first beam body 30 and the floor body 10, and the material of the threshold beam 20, the first beam body 30 and the floor body 10 is usually metal, when the temperature changes, making the reinforcement 40 made of metal can reduce the difference in deformation between the reinforcement 40 and the threshold beam 20, the first beam body 30 and the floor body 10, so as to reduce the force on the connection parts of the reinforcement 40, the threshold beam 20, the first beam body 30 and the floor body 10, thereby increasing the stability of the connection of the reinforcement 40.

[0132] At the same time, making the reinforcement member 40 of metal can also make the reinforcement member 40 have higher strength and stability.

[0133] In this embodiment, the reinforcement member 40 is made of metal, so that the reinforcement member 40 has a certain strength and is not easily deformed when the vehicle 1000 is slightly collided, thereby improving the stability of the reinforcement member 40 .

[0134] In some embodiments, the material of the reinforcement member 40 includes iron-carbon alloy and / or aluminum.

[0135] Iron-carbon alloy refers to a binary alloy with iron and carbon as the main components, such as carbon steel, cast iron, etc.; iron-carbon alloy has the advantages of high strength, wear resistance, corrosion resistance, good machinability and low cost.

[0136] Aluminum has a lower density and is lighter in weight for the same volume; it has better ductility and is easier to process; a dense oxide protective film is easily formed on the surface of aluminum, making it less susceptible to corrosion.

[0137] This embodiment provides some specific materials for the reinforcement 40 so that the reinforcement 40 can have higher strength, thereby improving the stability of the reinforcement 40; at the same time, the material of the threshold beam 20 and the first beam body 30 also generally includes iron-carbon alloy and / or aluminum. This arrangement also facilitates better connection of the reinforcement 40 to the threshold beam 20 and the first beam body 30.

[0138] In some embodiments, the reinforcement member 40 is formed by an extrusion process.

[0139] The reinforcement member 40 is formed by an extrusion molding process, that is, the first connection portion 41 and the second connection portion 42 are integrally formed, and the first connection portion 41 and the second connection portion 42 are made of the same material.

[0140] In this embodiment, the reinforcement 40 is formed by an extrusion molding process. Since the extrusion molding process can harden the reinforcement 40 during molding, the mechanical properties of the reinforcement 40 can be improved. At the same time, the extrusion molding process has a high molding efficiency and a low manufacturing cost.

[0141] refer to Figure 6 , Figure 7 In some embodiments, in the width direction (X) of the first beam body 30, the first beam body 30 includes two spaced third connection parts 31, and the two third connection parts 31 are respectively connected to the floor body 10; an intermediate part 32 is provided between the two third connection parts 31, and the intermediate part 32 is spaced from the floor body 10 along the height direction of the first beam body 30.

[0142] In the figure, the direction of the X-axis is the length direction of the floor body 10, which is also the width direction of the first beam body 30; the direction of the Y-axis is the width direction of the floor body 10, which is also the length direction of the first beam body 30; the direction of the Z-axis is the thickness direction of the floor body 10, which is also the thickness direction of the first beam body 30.

[0143] The third connection part 31 refers to the part of the first beam body 30 connected to the floor body 10. The third connection part 31 can be a flat plate structure, or an L-shaped structure, a Z-shaped structure or other regular or irregular structures. For example, in the length direction (Y) of the first beam body 30, the third connection part 31 can have a plurality of protruding structures protruding from the third connection part 31 along the width direction (X) of the first beam body 30, and these protruding structures are connected to the floor body 10, so as to connect the first beam body 30 to the floor body 10 through these protruding structures.

[0144] The third connection part 31 can be fixedly connected to the floor body 10 by welding, bonding, etc., and can also be detachably connected to the floor body 10 by screwing, clamping, etc.; for example, the third connection part 31 is welded to the floor body 10 by a spot welding process, and the welding forms a plurality of welded structures arranged at intervals along the length direction (Y) of the first beam body 30.

[0145] In the width direction (X) of the first beam body 30, there are two third connection parts 31 and they are distributed at intervals. An intermediate part 32 is provided between the two third connection parts 31. The intermediate part 32 can be directly connected to the third connection part 31 or indirectly connected to the third connection part 31 through an intermediate structure. For example, the intermediate part 32 is respectively connected to the two third connection parts 31 at both ends along the width direction (X) of the first beam body 30.

[0146] The middle portion 32 is spaced apart from the floor body 10. At this time, the middle portion 32, the two third connecting portions 31 and the floor body 10 form a cavity. This arrangement can reduce the weight of the first beam body 30, thereby reducing the overall weight of the vehicle floor structure 100, and can reduce the cost of the first beam body 30. At the same time, because the two third connecting portions 31 and the middle portion 32 are arranged along the length direction (X) of the floor body 10, and the force of the side collision of the vehicle 1000 is usually applied to the first beam body 30 from the width direction (Y) of the floor body 10, this arrangement can also make the first beam body 30 not easy to deform when the vehicle 1000 is subjected to a slight side collision. When the vehicle 1000 is subjected to a severe side collision, the first beam body 30 can also deform to absorb energy, thereby reducing the damage of the collision energy to the battery 200, the seat and other structures and to the occupants.

[0147] refer to Figure 6 , Figure 7In some embodiments, the first beam body 30 further includes a reinforcing portion 33, which is formed by bending a portion of the middle portion 32 toward the floor body 10, and the reinforcing portion 33 is connected to the floor body 10; in the width direction (X) of the first beam body 30, the reinforcing portion 33 and the two third connecting portions 31 are spaced apart.

[0148] The reinforcing portion 33 refers to a structure formed by bending part of the middle portion 32 toward the floor body 10, that is, the reinforcing portion 33 can be regarded as a part of the middle portion 32; the reinforcing portion 33 is connected to the floor body 10, and the reinforcing portion 33 can be fixedly connected to the floor body 10 by welding, bonding, etc., and can also be detachably connected to the floor body 10 by screwing, clamping, etc.

[0149] Example, reference Figure 7 Since the reinforcement portion 33 is formed by bending the middle portion 32 and connected to the floor body 10, the reinforcement portion 33 should include two vertical walls that are perpendicular or approximately perpendicular to the floor body 10 and a transverse wall that is connected to the floor body 10. The two vertical walls and one transverse wall form a U-shaped reinforcement portion 33.

[0150] In the width direction (X) of the first beam body 30, the reinforcing portion 33 and the two third connecting portions 31 are spaced apart, that is, the reinforcing portion 33 divides a large cavity inside the first beam body 30 into two small cavities arranged along the width direction (X) of the first beam body 30; for example, the transverse wall portion of the reinforcing portion 33 is connected to the floor structure, and the two vertical wall portions of the reinforcing portion 33 are spaced apart from the two adjacent third connecting portions 31, respectively.

[0151] In this embodiment, the first beam body 30 is connected to the floor body 10 through two third connecting parts 31 and the middle part 32, which increases the area of ​​the first beam body 30 connected to the floor body 10, thereby increasing the stability of the first beam body 30 connected to the floor body 10, and also increasing the structural strength of the first beam body 30 on the floor body 10; at the same time, because the reinforcement part 33 is formed by bending the middle part 32, and it can still form a cavity in the first beam body 30, the weight of the first beam body 30 will not increase significantly. On the premise of increasing the strength and connection stability of the first beam body 30, this arrangement can also reduce the negative impact of the first beam body 30 on the weight of the vehicle floor structure 100.

[0152] refer to Figure 8 , Fig. 9 In some embodiments, the vehicle floor structure 100 further includes a second beam body 50 , which is disposed on the other side of the floor body 10 and opposite to the first beam body 30 .

[0153] The second beam body 50 refers to a beam structure in the vehicle floor structure 100 that is arranged on the floor body 10. The shape of the second beam body 50 can be a rectangular parallelepiped, a trapezoidal prism or other shapes, and the shape of the second beam body 50 can be an irregular shape; the material of the second beam body 50 can include metal or non-metallic materials; there can be one second beam body 50, or there can be two or more second beam bodies 50; the second beam body 50 can be fixedly connected to the floor body 10 by welding, gluing, etc., and can also be detachably connected to the floor body 10 by screwing, clamping, etc.

[0154] The second beam 50 is arranged on the side of the floor body 10 opposite to the first beam 30, so as to enhance the strength of the floor body 10 from both sides of the floor body 10, thereby further enhancing the strength of the floor body 10. At the same time, the first beam 30 and the second beam 50 can also suppress the deformation of the floor body 10 from different directions; when the floor body 10 is subjected to collision energy, part of the energy can also be dispersed to the second beam 50, thereby reducing the collision energy borne by the floor body 10 and playing a role in strengthening the strength of the floor body 10.

[0155] When the floor body 10 is used as the battery 200 box 60 and the first beam 30 is used for seat installation, the second beam 50 can be located inside the battery 200 box 60 , and the second beam 50 can also be used to support the battery cells 70 in the battery 200 box 60 .

[0156] The battery cell 70 is prone to generate a large expansion force during the charge and discharge process, which can easily cause the box body 60 to deform, and thus easily lead to safety problems. Accordingly, the second beam 50 is supported against the battery cell 70 to suppress the expansion of the battery cell 70 through the second beam 50.

[0157] In this embodiment, the frame structure is formed by the second beam body 50, the threshold beam 20, the floor body 10, and the first beam body 30, so that the overall strength of the vehicle floor structure 100 is improved, the impact resistance and collision resistance are improved, and the deformation of the floor body 10 when the vehicle 1000 is hit is reduced, thereby reducing the damage of the collision energy to the battery 200 and other structures and to the occupants; at the same time, the second beam body 50 can also play a role in suppressing the expansion and deformation of the battery cell 70, reducing the deformation of the battery cell 70 during use, and improving the safety performance of the battery cell 70.

[0158] refer to Figure 8 , Fig. 9 In some embodiments, opposite ends of the second beam body 50 are respectively connected to the door sill beam 20 .

[0159] The second beam body 50 can be directly connected to the threshold beam 20, or indirectly connected to the threshold beam 20 through an intermediate structure; the second beam body 50 can be fixedly connected to the threshold beam 20 by welding, gluing, etc., or detachably connected to the threshold beam 20 by screwing, clamping, etc.

[0160] When the vehicle 1000 is hit from the side, the collision energy received by the rocker beam 20 can be partially transferred to the second beam body 50, and then transferred to the rocker beam 20 on the other side through the second beam body 50, so that the energy generated by the collision can be better dispersed to the entire vehicle floor structure 100, thereby reducing the damage to structures such as seats and batteries 200 and to occupants caused by large-scale local deformation of the vehicle floor structure 100.

[0161] In this embodiment, the collision energy borne by the sill beam 20 can be directly transferred to the second beam body 50 and then transferred to the other opposite sill beam 20 via the second beam body 50 to further disperse the collision energy borne by the sill beam 20 and further improve the overall strength of the vehicle floor structure 100.

[0162] refer to Figure 3 , Figure 6 , Figure 8 , Fig. 9 In some embodiments, in the thickness direction (Z) of the floor body 10 , the projection of the second beam 50 on the floor body 10 at least partially overlaps with the projection of the first beam 30 on the floor body 10 .

[0163] The projection of the second beam 50 on the floor body 10 in the thickness direction (Z) of the floor body 10 refers to the area covered by the second beam 50 on the floor body 10, which is also the area of ​​the portion where the second beam 50 is connected to the floor body 10; the projection of the first beam 30 on the floor body 10 in the thickness direction (Z) of the floor body 10 refers to the area covered by the first beam 30 on the floor body 10, which is also the area of ​​the portion where the first beam 30 is connected to the floor body 10.

[0164] The projection of the second beam 50 on the floor body 10 at least partially overlaps with the projection of the first beam 30 on the floor body 10, which means that the second beam 50 and the first beam 30 are at least partially opposite to each other in the thickness direction (Z) of the floor body 10, that is, the second beam 50 and the first beam 30 can jointly strengthen the strength of the floor body 10 at the relative position between the two, so that the floor body 10 has a higher strength at the relative position between the second beam 50 and the first beam 30, thereby better suppressing the deformation of the floor body 10 at the relative position between the second beam 50 and the first beam 30, and at the same time, the second beam 50 and the first beam 30 can also support each other and suppress deformation of each other.

[0165] In this embodiment, at least a portion of the second beam body 50 is able to be opposite to the first beam body 30 in the thickness direction of the floor body 10, so as to further strengthen the strength of the floor body 10 at the position where the first beam body 30 and the second beam body 50 are located, and can also reduce the deformation of the floor body 10 at the position where the first beam body 30 and the second beam body 50 are located when the vehicle 1000 is subjected to a side collision, thereby improving the overall strength of the vehicle floor structure 100 and improving the impact and collision resistance of the vehicle floor structure 100.

[0166] In some embodiments, the second beam 50 is bonded to the floor body 10 .

[0167] Compared with the welding method, bonding the second beam body 50 to the floor body 10 can simplify the installation process of the second beam body 50 and improve production efficiency.

[0168] Since the second beam 50 and the battery cell 70 are on the same side of the floor body 10, if welding is adopted, the welding slag generated by welding is easy to fall and damage the battery cell 70, and it is also easy to cause a short circuit between the battery cells 70; bonding the second beam 50 to the floor body 10 can reduce the negative impact that the connection structure between the second beam 50 and the floor body 10 may have on the battery cell 70.

[0169] In some embodiments, the vehicle floor structure 100 includes a floor body 10, a sill beam 20, a first beam body 30, a reinforcement member 40, and a second beam body 50. The sill beam 20 is connected to the floor body 10 and disposed at opposite sides of the floor body 10 along its width direction (Y), and the length direction of the sill beam 20 is parallel to the length direction (X) of the floor body 10.

[0170] There are two first beam bodies 30 and they are arranged at intervals along the length direction (X) of the floor body 10. The length direction of the first beam body 30 is perpendicular to the length direction of the threshold beam 20. The first beam body 30 includes two third connecting parts 31 arranged at intervals along the width direction (X) of the first beam body 30. An intermediate part 32 is provided between the two third connecting parts 31. The intermediate part 32 is bent toward the floor body 10 to form a reinforcing part 33 connected to the floor body 10. The two third connecting parts 31 and the reinforcing part 33 are connected to the floor body 10 by a spot welding process.

[0171] The reinforcement 40 is made by an extrusion molding process, and includes a first connection portion 41 and four second connection portions 42. The four second connection portions 42 are connected to the first connection portion 41 at intervals along the length direction (X) of the floor body 10. Two of the four second connection portions 42 are connected to the same first beam body 30, and the other two are connected to another first beam body 30. The first connection portion 41 is connected to the adjacent two sides of the door sill beam 20, and the first connection portion 41 and the second connection portion 42 enclose a collapse space 401.

[0172] The second beam body 50 is disposed on a side of the floor body 10 opposite to the first beam body 30 , and both ends of the second beam body 50 are respectively connected to the two threshold beams 20 . The second beam body 50 is fixedly connected to the floor body 10 by gluing.

[0173] In a second aspect, some embodiments of the present application further provide a vehicle body, including the vehicle body floor structure provided by some embodiments of the first aspect.

[0174] In addition to the vehicle body floor structure, the vehicle body may also include side panels, a top and other structures, and a battery 200 may be provided on the lower side of the vehicle body floor structure.

[0175] In a third aspect, some embodiments of the present application further provide a battery 200 , which includes a box body 60 , a first beam body 30 and a reinforcement member 40 .

[0176] The box body 60 includes a top plate 611, which refers to the structure of the box body 60 facing the vehicle body. For example, the top plate 611 is a plate-like structure located above the battery cell 70 in the battery 200; the material of the top plate 611 may include metal or non-metallic material; the shape of the top plate 611 may be directional, circular or other shapes.

[0177] The top plate 611 is used as at least a part of the floor body 10 in the vehicle floor structure 100 , that is, the top plate 611 can be used as a partial structure of the floor body 10 . In this case, the floor body 10 also includes other structures, and the top plate 611 can also be used as the entire floor body 10 .

[0178] Similar to some embodiments of the first aspect, the first beam body 30 is disposed on the top plate 611 , and the reinforcement 40 is disposed at opposite ends of the first beam body 30 ; one side of the reinforcement 40 is connected to the first beam body 30 , and the other side of the reinforcement 40 is used to connect to the threshold beam 20 .

[0179] When one side of the vehicle 1000 is hit by a collision, the force of the collision can be transmitted to the first beam body 30 through the rocker beam 20 and the reinforcement 40 on the corresponding side, and then transmitted to the other rocker beam 20 on the opposite side through the first beam body 30, so that the entire box body 60 can participate in buffering the collision energy, thereby improving the overall strength of the vehicle floor structure 100 and better protecting structures such as the battery 200.

[0180] In some embodiments, the battery 200 further includes a second beam 50 , which is disposed on the other side of the top plate 611 and opposite to the first beam 30 . The second beam 50 is used to support the battery cells 70 in the box 60 .

[0181] Similar to some embodiments of the first aspect, the second beam body 50 refers to the beam structure in the battery 200. The shape of the second beam body 50 can be a rectangular parallelepiped, a trapezoidal prism or other shapes. The shape of the second beam body 50 can be an irregular shape; the material of the second beam body 50 can include metal or non-metallic materials; the second beam body 50 can be one, or there can be two or more.

[0182] The second beam body 50 is arranged on the side of the top plate 611 opposite to the first beam body 30, so as to enhance the strength of the top plate 611 from both sides of the top plate 611, thereby further enhancing the strength of the floor structure 100. At the same time, the first beam body 30 and the second beam body 50 can also suppress the deformation of the top plate 611 from different directions; when the top plate 611 is subjected to collision energy, part of the energy can also be dispersed to the second beam body 50, thereby reducing the collision energy borne by the top plate 611 and playing a role in strengthening the strength of the floor structure 100.

[0183] Since the battery cell 70 is prone to generate a large expansion force during the charge and discharge process, the expansion force is likely to cause the box body 60 to deform, which in turn is likely to cause safety problems. Therefore, the second beam 50 is supported against the battery cell 70 to suppress the expansion of the battery cell 70 through the second beam 50.

[0184] In this embodiment, the energy borne by the top plate 611 is further dispersed by the second beam body 50 to increase the strength of the top plate 611 and reduce the deformation of the top plate 611 when the vehicle 1000 is hit, thereby reducing the damage caused by the collision energy to the battery 200 and other structures and to the occupants; at the same time, the second beam body 50 can also play a role in suppressing the expansion and deformation of the battery cell 70, reducing the deformation of the battery cell 70 during use, and improving the safety performance of the battery cell 70.

[0185] In some embodiments, opposite ends of the second beam body 50 are respectively connected to the side walls of the box body 60 , or opposite ends of the second beam body 50 are used to be connected to the door sill beam 20 .

[0186] Similar to some embodiments of the first aspect, both ends of the second beam body 50 can be connected to the threshold beam 20. Specifically, the second beam body 50 can be directly connected to the threshold beam 20, or indirectly connected to the threshold beam 20 through an intermediate structure; the second beam body 50 can be fixedly connected to the threshold beam 20 by welding, gluing, etc., or can be detachably connected to the threshold beam 20 by screwing, clamping, etc.

[0187] When the vehicle 1000 is hit from the side, the collision energy received by the rocker beam 20 can be partially transferred to the second beam body 50, and then transferred to the rocker beam 20 on the other side through the second beam body 50, so that the energy generated by the collision can be better dispersed to the entire vehicle floor structure 100, thereby reducing the damage to structures such as seats and batteries 200 and to occupants caused by large-scale local deformation of the vehicle floor structure 100.

[0188] Both ends of the second beam body 50 can also be connected to the side walls of the box body 60. Specifically, the second beam body 50 can be directly connected to the side walls of the box body 60, or indirectly connected to the side walls of the box body 60 through an intermediate structure; the second beam body 50 can be fixedly connected to the side walls of the box body 60 by welding, gluing, etc., and can also be detachably connected to the side walls of the box body 60 by screwing, clamping, etc.

[0189] When the vehicle 1000 is hit from the side, the collision energy received by the sill beam 20 can be partially transferred to the second beam body 50, and then transferred to the box body 60 through the second beam body 50, so that the energy generated by the collision can be better dispersed to the entire vehicle floor structure 100 and the entire box body 60, thereby reducing the damage to structures such as seats and batteries 200 and to occupants caused by large-scale local deformation of the vehicle floor structure 100.

[0190] In this embodiment, the collision energy borne by the sill beam 20 or the side wall of the box body 60 can be directly transferred to the second beam body 50, and then transferred to the opposite other sill beam 20 or the side wall of the box body 60 through the second beam body 50, so as to further disperse the collision energy borne by the sill beam 20 and the side wall of the box body 60, and further improve the overall strength of the vehicle floor structure 100.

[0191] In a fourth aspect, some embodiments of the present application further provide a vehicle 1000, comprising a vehicle body provided by some embodiments of the second aspect, or a battery 200 provided by some embodiments of the third aspect; in the vehicle 1000 provided by this embodiment, through the first beam body 30 and the reinforcement 40, the floor body 10, the threshold beam 20, the reinforcement 40 and the first beam body 30 in the vehicle floor structure 100 can all participate in buffering the collision energy, thereby improving the overall strength of the vehicle floor structure 100, and can better protect structures such as seats and batteries 200, and can also play a role in protecting occupants.

[0192] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A vehicle floor structure, characterized in that: include: Floor body; A threshold beam is provided at two opposite sides of the floor body along the width direction of the floor body; A first beam body is arranged on the floor body, and a length direction of the first beam body is arranged at an angle to a length direction of the threshold beam; A reinforcement member is provided between the first beam body and the threshold beam, one side of the reinforcement member is connected to the threshold beam, and the other side of the reinforcement member is connected to the first beam body.

2. The vehicle floor structure according to claim 1, characterized in that: The reinforcement member has a collapse space therein.

3. The vehicle floor structure according to claim 2, characterized in that: The reinforcement member includes a first connection portion and a second connection portion connected to the first connection portion, the first connection portion is connected to the sill beam, the second connection portion is connected to the first beam body, and the collapse space is formed between the first connection portion and the second connection portion.

4. The vehicle floor structure according to claim 3, characterized in that: There are at least two first beams, and at least two first beams are arranged at intervals along the length direction of the floor body; The number of the second connection parts is the same as the number of the first beam bodies, and each of the second connection parts is connected to one of the first beam bodies.

5. The vehicle floor structure according to any one of claims 1 to 4, characterized in that: The reinforcement is made of metal.

6. The vehicle floor structure according to any one of claims 1 to 4, characterized in that: The reinforcement member is an iron-carbon alloy structural member; or the reinforcement member is an aluminum structural member.

7. The vehicle floor structure according to any one of claims 1 to 4, characterized in that: The reinforcement is formed by an extrusion molding process.

8. The vehicle floor structure according to any one of claims 1 to 4, characterized in that: In the width direction of the first beam body, the first beam body includes two third connection parts arranged at intervals, and the two third connection parts are respectively connected to the floor body; An intermediate portion is provided between the two third connecting portions, and the intermediate portion is spaced apart from the floor body along a height direction of the first beam body.

9. The vehicle floor structure according to claim 8, characterized in that: The first beam body further includes a reinforcement portion, the reinforcement portion is formed by bending the middle portion toward the floor body, and the reinforcement portion is connected to the floor body; In the width direction of the first beam body, the reinforcing portion and the two third connecting portions are arranged at intervals.

10. The vehicle floor structure according to any one of claims 1 to 4, characterized in that: The vehicle floor structure further includes a second beam body, which is disposed on the other side of the floor body and opposite to the first beam body.

11. The vehicle floor structure according to claim 10, characterized in that: The opposite ends of the second beam body are respectively connected to the door sill beam.

12. The vehicle floor structure according to claim 10, characterized in that: In the thickness direction of the floor body, a projection of the second beam on the floor body at least partially overlaps with a projection of the first beam on the floor body.

13. The vehicle floor structure according to claim 10, characterized in that: The second beam body is bonded to the floor body.

14. A vehicle body, characterized in that: The vehicle floor structure comprises the vehicle floor structure as claimed in any one of claims 1 to 13.

15. A battery, characterized in that: include: A box body, the box body comprising a top plate, the top plate being used as at least a part of a floor body in a vehicle floor structure; A first beam body, arranged on the top plate; A reinforcement member is provided at opposite ends of the first beam body along the width direction of the top plate, one side of the reinforcement member is connected to the first beam body, and the other side of the reinforcement member is used to be connected to the threshold beam.

16. The battery according to claim 15, characterized in that The battery further comprises a second beam body, which is arranged on the other side of the top plate and opposite to the first beam body, and is used for supporting the battery monomer in the box body.

17. The battery according to claim 16, characterized in that The opposite ends of the second beam are respectively connected to the side walls of the box body, or The opposite ends of the second beam body are used to be connected to the door sill beam.

18. A vehicle, characterized in that: Comprising the vehicle body as claimed in claim 14, or the battery as claimed in any one of claims 15-17.

Images