Threshold beam assembly, battery mounting system, chassis assembly, vehicle body assembly and vehicle

Abstract

The embodiment of the invention provides a threshold beam assembly, a battery mounting system, a chassis assembly, a vehicle body assembly and a vehicle, and relates to the technical field of mechano-electronics. According to the embodiment of the invention, the doorsill beam comprises the groove with the notch facing the battery, and before the doorsill beam is assembled with the upper cover plate and the lower cover plate, parts such as a pipeline for connecting front and rear devices of the vehicle and a reinforcing unit for reinforcing the strength of the doorsill beam can be mounted in the groove of the doorsill beam through the notch of the groove; components such as the pipeline used for connecting front and rear devices of the vehicle and the reinforcing unit used for reinforcing the strength of the doorsill beam are easy to assemble, the assembling efficiency is high, and the assembling efficiency of the whole vehicle is high.

Description

Sill beam assembly, battery mounting system, chassis assembly, body assembly and vehicle Technical Field

[0001] The embodiments of the present application relate to the field of mechanical and electronic technology, and in particular to a sill beam assembly, a battery mounting system, a chassis assembly, a body assembly, and a vehicle. Background Art

[0002] The vehicle may include an onboard battery. Some vehicles may use the onboard battery as power to drive wheels via a motor for travel.

[0003] In order to increase the vehicle's range, increasing the capacity of the on-board battery, increasing the energy density of the vehicle's energy storage device, improving the integration method of the battery cells, and improving the charging experience are hot issues in the automotive energy transformation.

[0004] However, in the related art, as the capacity of the vehicle's onboard battery increases, the size of the battery increases, making it more difficult to assemble components such as pipelines used to connect the front and rear devices of the vehicle and reinforcement units used to strengthen the strength of the door sill beam, resulting in low assembly efficiency of the entire vehicle.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a sill beam assembly, a battery mounting system, a chassis assembly, a body assembly and a vehicle. By providing a groove for mounting components on the side of the sill beam facing the battery, components such as pipelines for connecting the front and rear devices of the vehicle and reinforcing units for increasing the strength of the sill beam can be installed in the groove of the sill beam through the notches of the groove. The assembly of components such as pipelines for connecting the front and rear devices of the vehicle and reinforcing units for increasing the strength of the sill beam is relatively easy and the assembly efficiency is high, thereby increasing the assembly efficiency of the entire vehicle.

[0007] In a first aspect, an embodiment of the present application provides a threshold beam assembly, comprising a threshold beam. The threshold beam includes a first groove extending along the length of the threshold beam and comprising a first mounting portion and a second mounting portion. The first mounting portion is configured to connect to an upper cover plate of a battery, the second mounting portion is configured to connect to a lower cover plate of the battery, and the notch of the first groove is configured to face the battery.

[0008] The sill beam assembly provided in the embodiment of the present application has a first groove of the sill beam with a notch facing the battery, and a relatively shallow depth of the first groove. Components such as pipelines for connecting the front and rear devices of the vehicle and reinforcing units for strengthening the strength of the sill beam can be installed in the first groove through the notch of the first groove. After the components are assembled in the first groove, the upper cover plate and the lower cover plate are installed. It is relatively convenient to place and fix components in the first groove of the sill beam through the notch of the first groove. The assembly difficulty of components such as pipelines for connecting the front and rear devices of the vehicle and reinforcing units for strengthening the strength of the sill beam is relatively small and the assembly efficiency is high, so that the assembly efficiency of the entire vehicle is high.

[0009] In a possible implementation, a reinforcement unit is provided in the first groove, the shape of the reinforcement unit is aligned with the inner surface of the first groove, and the reinforcement unit is made of a negative Poisson's ratio material.

[0010] In a possible implementation, the reinforcement unit includes a second groove, and the second groove is used for arranging the pipeline.

[0011] In a possible embodiment, a partition plate is further included, and the partition plate and the first groove are combined to form a first cavity that runs through the door sill beam in an extending direction, and the first cavity is used for arranging pipelines.

[0012] A second aspect of an embodiment of the present application provides a battery installation system, comprising an upper cover plate, a lower cover plate, and a threshold beam. Threshold beams are provided on the left and right sides of the upper and lower cover plates, and a second cavity is provided between the upper and lower cover plates and the threshold beams on the left and right sides thereof, wherein the second cavity is used to install a battery. At least one threshold beam includes a first groove, the first groove extending along the length direction of the threshold beam in which it is located, and the notch of the first groove faces the second cavity. The first groove includes a first mounting portion and a second mounting portion, the first mounting portion being connected to the upper cover plate, and the second mounting portion being connected to the lower cover plate.

[0013] In the battery installation system provided in the embodiment of the present application, the notch of the first groove of the door sill beam faces the second cavity, and the depth of the first groove is relatively shallow. Before the upper cover plate and the lower cover plate are installed, the pipelines for connecting the front and rear devices of the vehicle and the reinforcing units for strengthening the strength of the door sill beam and other components can be installed in the first groove through the notch of the first groove. After the components are assembled in the first groove, the upper cover plate and the lower cover plate are installed. It is relatively convenient to place and fix the components in the first groove of the door sill beam through the notch of the first groove. The assembly difficulty of the pipelines for connecting the front and rear devices of the vehicle and the reinforcing units for strengthening the strength of the door sill beam and other components is relatively small and the assembly efficiency is relatively high, so that the assembly efficiency of the entire vehicle is relatively high.

[0014] In a possible implementation manner, the groove cavity of at least one first groove passes through the door sill beam where the groove cavity is located along an extension direction of the door sill beam where the groove cavity is located.

[0015] In a possible implementation, a reinforcement unit is provided in at least one first groove, and a shape of the reinforcement unit fits the inner surface of the first groove in which the reinforcement unit is located.

[0016] In a possible implementation manner, at least one reinforcement unit includes a second groove, and the at least one second groove is used for arranging a pipeline.

[0017] In a possible implementation, a groove cavity of at least one second groove passes through the reinforcement unit where the groove cavity is located along an extension direction of the door sill beam where the groove cavity is located.

[0018] In a possible implementation manner, at least one reinforcement unit is made of a negative Poisson's ratio material.

[0019] In a possible implementation, the upper cover plate is connected to the upper surface of the first mounting portion, and the lower cover plate is connected to the lower surface of the second mounting portion.

[0020] In a possible implementation, a partition plate is provided between the upper cover plate and the lower cover plate, and the partition plate is used to enclose the upper cover plate and the lower cover plate to form a second cavity, and the partition plate and the adjacent first groove enclose a first cavity, and at least one first cavity is used to arrange pipelines.

[0021] In a possible implementation, the partition plate is provided at a notch of an adjacent first groove.

[0022] In a possible implementation, the upper end of the partition plate is fixedly connected to the upper cover plate, and the lower end of the partition plate is fixedly connected to the lower cover plate.

[0023] In a possible implementation, the partition plate and one of the upper cover plate and the lower cover plate are integrally formed, and the partition plate and the other of the upper cover plate and the lower cover plate are sealed by a sealing member.

[0024] In one possible implementation, the partition plate includes a first section and a second section. The first section is integrally formed with the upper cover plate, and the second section is integrally formed with the lower cover plate. Within the same partition plate, the lower end of the first section is butted against the upper end of the second section, and the first and second sections are sealed by a seal.

[0025] In a possible implementation, the partition plate abuts against the reinforcing unit in the adjacent first groove.

[0026] A third aspect of the present application provides a chassis assembly, including a battery and a battery mounting system according to any of the above embodiments, wherein the battery is mounted in the battery mounting system.

[0027] A fourth aspect of an embodiment of the present application provides a vehicle body assembly, comprising a battery and a battery mounting system according to any of the above-mentioned embodiments, wherein the battery is mounted in the battery mounting system.

[0028] A fifth aspect of an embodiment of the present application provides a vehicle, comprising a battery and a battery mounting system according to any one of the above embodiments, wherein the battery is mounted in the battery mounting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic diagram of a vehicle provided in an embodiment of the present application;

[0030] FIG2 is an exploded view of a battery installation system provided by an embodiment of the present application with batteries installed;

[0031] FIG3 is a schematic diagram of a battery installation system provided by an embodiment of the present application;

[0032] FIG4 is a cross-sectional view of a battery mounting system with batteries installed according to an embodiment of the present application;

[0033] FIG5 is a schematic diagram of a threshold beam provided in an embodiment of the present application;

[0034] FIG6 is a schematic diagram of a sill beam, a reinforcement unit, and pipelines provided in an embodiment of the present application before assembly;

[0035] FIG7 is a schematic diagram of a threshold beam assembly provided in an embodiment of the present application;

[0036] FIG8 is a schematic diagram of a threshold beam assembly and pipelines after assembly according to an embodiment of the present application;

[0037] FIG9 is a schematic diagram of an upper cover plate, a lower cover plate, and a partition plate of a battery mounting system provided in an embodiment of the present application before assembly;

[0038] FIG10 is a schematic diagram of an upper cover plate, a lower cover plate, and a partition plate of another battery mounting system provided in an embodiment of the present application before assembly;

[0039] FIG11 is a schematic diagram of an upper cover plate, a lower cover plate and a partition plate of another battery mounting system provided in an embodiment of the present application before assembly.

[0040] Description of reference numerals:

[0041] 100. Body assembly;

[0042] 200, wheel;

[0043] 300, threshold beam; 310, left threshold beam; 320, right threshold beam; 330, first groove; 331, first cavity; 332, first mounting portion; 333, second mounting portion; 340, energy absorption cavity; 350, third groove;

[0044] 410, upper cover; 420, lower cover; 430, cold plate;

[0045] 500, partition plate; 510, first section; 520, second section;

[0046] 600, battery; 610, second cavity;

[0047] 700, reinforcement unit; 710, left reinforcement unit; 720, right reinforcement unit; 730, second groove;

[0048] 800, pipeline. DETAILED DESCRIPTION

[0049] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0050] The vehicle provided in the embodiment of the present application can be powered by an onboard battery and can be driven by a motor to rotate the wheels for travel.

[0051] The vehicles provided in the embodiments of the present application may include, but are not limited to, pure electric vehicles (Pure Electric Vehicle / Battery Electric Vehicle, PEV / BEV), hybrid electric vehicles (Hybrid Electric Vehicle, HEV), range extended electric vehicles (Range Extended Electric Vehicle, REEV), plug-in hybrid electric vehicles (Plug-in Hybrid Electric Vehicle, PHEV), etc.

[0052] FIG1 is a schematic diagram of a vehicle provided in an embodiment of the present application.

[0053] FIG1 is a schematic diagram of a vehicle provided in an embodiment of the present application.

[0054] As shown in FIG1 , the vehicle provided in an embodiment of the present application includes at least one of a body assembly 100 and a chassis assembly (not shown) and a wheel 200 .

[0055] It is understandable that the vehicle body assembly 100 can be a non-load-bearing vehicle body assembly or a load-bearing vehicle body assembly.

[0056] It will be appreciated that when the vehicle includes a chassis assembly, the chassis assembly may be a skateboard-type chassis assembly.

[0057] It is understood that a vehicle may include a chassis assembly but not a body assembly 100, and the wheels 200 may be mounted on the chassis assembly. A vehicle may also include a body assembly 100 but not a chassis assembly, and the wheels 200 may be mounted on the body assembly 100. A vehicle may also include a body assembly 100 and a chassis assembly, and both the body assembly 100 and the wheels 200 may be mounted on the chassis assembly.

[0058] It can be understood that when a vehicle includes the body assembly 100 , the body assembly 100 may have a driving and riding space, or the body assembly 100 may form a driving and riding space with the chassis assembly.

[0059] Figure 2 is an exploded view of a battery installation system with batteries provided in an embodiment of the present application, Figure 3 is a schematic diagram of a battery installation system with batteries provided in an embodiment of the present application, and Figure 4 is a cross-sectional view of a battery installation system with batteries provided in an embodiment of the present application.

[0060] As shown in FIG. 2 to FIG. 4 , in an embodiment of the present application, a vehicle includes a battery 600 and a battery mounting system (not shown), and the battery 600 is mounted in the battery mounting system.

[0061] It will be appreciated that in embodiments where the vehicle includes a chassis assembly and a body assembly 100, at least one of the chassis assembly and the body assembly 100 includes the battery 600 and the battery mounting system. In embodiments where the vehicle includes a chassis assembly but does not include the body assembly 100, the chassis assembly may include the battery 600 and the battery mounting system. In embodiments where the vehicle includes the body assembly 100 but does not include the chassis assembly, the body assembly 100 may include the battery 600 and the battery mounting system.

[0062] It is understandable that the battery mounting system may be a cell to chassis (CTC) type battery mounting system.

[0063] In an embodiment of the present application, the vehicle further includes a motor (not shown), which is electrically connected to the battery 600. The battery 600 is used to provide electrical energy to the motor electrically connected thereto. The motor is transmission-connected to the wheel 200, and the motor is used to drive the wheel 200 to rotate.

[0064] It is understood that in embodiments where the vehicle includes a chassis assembly and a body assembly 100, at least one of the chassis assembly and the body assembly 100 includes a motor. In embodiments where the vehicle includes a chassis assembly but does not include a body assembly 100, the chassis assembly may include a motor. In embodiments where the vehicle includes a body assembly 100 but does not include a chassis assembly, the body assembly 100 may include a motor.

[0065] It is understandable that the rotating wheels 200 can drive the body assembly 100 or the chassis assembly to move, so as to enable the vehicle to travel.

[0066] As shown in Figures 2-4, in an embodiment of the present application, the battery mounting system may include a sill beam assembly (not shown) as well as an upper cover plate 410 and a lower cover plate 420. The upper cover plate 410 and the lower cover plate 420 are arranged vertically, and the upper cover plate 410 can serve as the vehicle floor for users to step on. Sill beam assemblies are provided on both the left and right sides of the upper and lower cover plates 410, 420, and are fixedly connected to the upper and lower cover plates 410, 420. Specifically, the sill beam assembly includes sill beams 300, each of which is fixedly connected to the upper and lower cover plates 410, 420. A second cavity 610 for mounting a battery 600 is defined between the upper and lower cover plates 410, 420, and the sill beams 300 on both sides. The battery 600 is disposed within the second cavity 610. The sill beam 300 located on the left side of the upper and lower cover plates 410, 420 is referred to as the left sill beam 310, and the sill beam 300 located on the right side of the upper and lower cover plates 410, 420 is referred to as the right sill beam 320. In other words, the left sill beam 310 is fixedly connected to the left side of the upper and lower cover plates 410, 420, and the right sill beam 320 is fixedly connected to the right side of the upper and lower cover plates 410, 420. A second cavity 610 is defined between the upper and lower cover plates 410, 420, the left and right sill beams 310, 320.

[0067] It can be understood that the "front" in this application is the direction in which the front of the vehicle is facing, the "rear" in this application is the direction away from the "front", the "down" in this application is the direction in which the vehicle is facing the ground, the "up" in this application is the direction away from the "down", the "left" in this application is the direction in which the left side of the user driving the vehicle is facing, and the "right" in this application is the direction away from the "left".

[0068] It is understandable that when the vehicle includes the body assembly 100 , the upper cover plate 410 can be used to form a driving space with the upper body of the body assembly 100 , so that the upper cover plate 410 serves as the floor of the vehicle.

[0069] It is understood that the battery 600 can be installed on the lower surface of the upper cover 410 or on the upper surface of the lower cover 420. The battery 600 can be installed on the upper cover 410 or the lower cover 420 by adhesive bonding or snap-fitting.

[0070] In related art, the sidewall of the sill beam facing the battery is either flat or protruding toward the battery. The upper and lower covers, as well as the battery-facing sidewalls of the left and right sill beams, form a cavity for mounting the battery. In other words, the right sidewall of the left sill beam and the left sidewall of the right sill beam are either flat or protruding toward the battery. The upper and lower covers, as well as the right and left sides of the left sill beam and the right sidewall, form a cavity for mounting the battery. In related art, the gap between the sill beam and the battery is small, making it difficult to route components such as wiring for connecting the front and rear components of the vehicle between the beam and the battery. These components are often routed within the energy-absorbing cavity within the sill beam. Furthermore, to increase the strength of the sill beam and reduce the risk of battery damage due to sill beam deformation during collisions, a reinforcement unit can be installed within the energy-absorbing cavity of the sill beam.

[0071] However, the energy-absorbing cavity of the sill beam only has two openings running through it, front and back. Components such as pipelines and reinforcement units installed within the cavity must be inserted through the front or rear openings, making it difficult to insert and secure components within the relatively narrow cavity. For example, pipelines passing through the cavity often require elastic sleeves that abut against the cavity walls to secure them within the cavity. However, inserting the elastic sleeves through the front and rear openings and moving them to their pre-set positions within the cavity are both difficult. Furthermore, the reinforcement units within the cavity must be clamped by the cavity walls to secure them within the cavity. This makes the process of inserting the reinforcement units through the front and rear openings into the relatively narrow cavity complex and challenging. The difficulty in assembling components such as the pipelines connecting the front and rear components of the vehicle and the reinforcement units used to strengthen the sill beam results in low assembly efficiency for components within the sill beam, leading to low assembly efficiency for the entire vehicle.

[0072] FIG5 is a schematic diagram of a threshold beam provided in an embodiment of the present application.

[0073] As shown in FIG5 , and with reference to FIG2-FIG4 , based on this, in the embodiment of the present application, at least one sill beam 300 includes a first groove 330. The first groove 330 extends along the length of the sill beam 300 in which it is located, and the notch of the first groove 330 faces the battery, that is, the notch of the first groove 330 faces the second cavity 610. The first groove 330 includes a first mounting portion 332 and a second mounting portion 333. The first mounting portion 332 is connected to the upper cover plate 410, and the second mounting portion 333 is connected to the lower cover plate 420.

[0074] In this way, the notch of the first groove 330 of the sill beam 300 faces the second cavity 610, and the depth of the first groove 300 is relatively shallow. Before the upper cover plate 410 and the lower cover plate 420 are installed, components such as the pipeline 800 for connecting the front and rear components of the vehicle and the reinforcement unit 700 for strengthening the strength of the sill beam 300 can be installed in the first groove 330 through the notch of the first groove 330. After the components are assembled in the first groove 330, the upper cover plate 410 and the lower cover plate 420 are installed. It is relatively convenient to place and fix components in the first groove 330 of the sill beam 300 through the notch of the first groove 330. The assembly difficulty of components such as the pipeline 800 for connecting the front and rear components of the vehicle and the reinforcement unit 700 for strengthening the strength of the sill beam 300 is relatively small and the assembly efficiency is high, which makes the assembly efficiency of the entire vehicle high.

[0075] It is understood that the size and shape of the first groove 330 may be determined according to the size and shape of the component to be placed therein.

[0076] It is understandable that the first groove 330 can be a groove of various shapes such as a rectangular groove, a trapezoidal groove, an arc groove, etc.

[0077] It is understandable that the first groove 330 may be provided on only the right side wall of the left sill beam 310 , or on only the left side wall of the right sill beam 320 , or on both the right side wall of the left sill beam 310 and the left side wall of the right sill beam 320 .

[0078] In an embodiment of the present application, a partition plate 500 is further provided between the upper cover plate 410 and the lower cover plate 420. The partition plate 500 is used to enclose the upper cover plate 410 and the lower cover plate 420 to form a second cavity 610. The partition plate 500 and the adjacent first groove 330 enclose a first cavity 331.

[0079] Thus, by providing the separator 500, a sealed second cavity 610 is formed to accommodate the battery 600, making the battery 600 safer to use. Furthermore, components such as the pipeline 800 and the reinforcement unit 700 can be located on either side of the separator 500, reducing the risk of components contacting the battery 600 and causing damage to the battery 600.

[0080] It can be understood that a partition plate 500 is provided between at least one threshold beam 300 including a first groove 330 and the battery 600, and the partition plate 500 is used to separate the adjacent first groove 330 from the second cavity 610 where the battery 600 is located, so as to form a second cavity 610 for installing the battery 600 and a first cavity 331 for installing components on both sides of the partition plate 500.

[0081] It can be understood that when the left door sill beam 310 includes the first groove 330 and a partition plate 500 is only provided between the left door sill beam 310 and the battery 600, the partition plate 500 between the left door sill beam 310 and the battery 600, the upper cover plate 410, the lower cover plate 420 and the right door sill beam 320 can be enclosed to form a second cavity 610 for installing the battery 600, and a first cavity 331 is formed between the partition plate 500 and the first groove 330 of the left door sill beam 310.

[0082] When the right sill beam 320 includes a first groove 330 and a partition plate 500 is provided only between the right sill beam 320 and the battery 600, the partition plate 500 between the right sill beam 320 and the battery 600, the upper cover plate 410, the lower cover plate 420 and the left sill beam 310 can enclose to form a second cavity 610 for installing the battery 600, and a first cavity 331 is formed between the partition plate 500 and the first groove 330 of the right sill beam 320.

[0083] When the left sill beam 310 and the right sill beam 320 both include a first groove 330, and the left sill beam 310, the right sill beam 320 and the battery 600 are all provided with a partition plate 500, the partition plate 500 between the left sill beam 310 and the battery 600, the partition plate 500 between the right sill beam 320 and the battery 600, the upper cover plate 410 and the lower cover plate 420 can be enclosed to form a second cavity 610 for installing the battery 600, a first cavity 331 is formed between the partition plate 500 adjacent to the left sill beam 310 and the first groove 330 of the left sill beam 310, and a first cavity 331 is formed between the partition plate 500 adjacent to the right sill beam 320 and the first groove 330 of the right sill beam 320.

[0084] It is understandable that the partition plate 500 may be spaced apart from the adjacent door sill beam 300 , or may be disposed at the notch of the adjacent first groove 330 .

[0085] It is understood that the upper and lower ends of the partition plate 500 can be fixedly connected to the first mounting portion 332 and the second mounting portion 333 of the adjacent first groove 330, respectively, so that the threshold beam assembly can include the threshold beam 300 and the partition plate 500 fixedly connected thereto. Alternatively, the upper and lower ends of the partition plate 500 can also be fixedly connected to the upper cover plate 410 and the lower cover plate 420, respectively, in which case the threshold beam assembly does not need to include the partition plate 500.

[0086] In the embodiment of the present application, the at least one first cavity 331 may be used to arrange the pipeline 800 .

[0087] In this way, the routing of the pipeline 800 connecting the front and rear devices of the vehicle is more convenient.

[0088] It is understandable that the pipeline 800 may include at least one of an automobile brake pipe, an air spring air pipe, a cooling water pipe, a rear air conditioning refrigerant pipe, and the like.

[0089] It is understood that when both the left and right sill beams 310 and 320 include the first groove 330, and the first grooves 330 of the left and right sill beams 310 and 320 form the first cavity 331 with the partition plate 500, the pipeline 800 may be installed only in the first cavity 331 formed by the first groove 330 of the left sill beam 310, or only in the first cavity 331 formed by the first groove 330 of the right sill beam 320, or both in the first groove 330 of the left and right sill beams 310 and 320. When pipelines are installed in the first cavities 331 formed by the first groove 330 of the left and right sill beams 310 and 320, different pipelines 800 may be installed in the first cavities 331 formed by the first groove 330 of the left and right sill beams 310 and 320, respectively.

[0090] In the embodiment of the present application, the upper end of the partition plate 500 is fixedly connected to the upper cover plate 410, and the lower end of the partition plate 500 is fixedly connected to the lower cover plate 420.

[0091] In this way, when the upper cover plate 410 and the lower cover plate 420 are assembled on the door sill beam 330 , the assembly of the partition plate 500 can be completed, which helps to reduce the assembly steps and improve the assembly efficiency.

[0092] In the embodiment of the present application, the partition plate 500 is disposed at the notch of the adjacent first groove 330 .

[0093] In this way, the left-right dimension of the second cavity 610 for installing the battery 600 is larger, which can make the space of the second cavity 610 larger, and is conducive to arranging a larger battery 600 in the second cavity 610, so that the battery capacity of the vehicle is larger.

[0094] It is understandable that the partition plate 500 may be attached to the end surface of the adjacent door sill beam 300 facing the battery 600 .

[0095] In the embodiment of the present application, the first groove 330 is rectangular.

[0096] Thus, the first groove 330 has a larger opening and a larger cavity, making it easier to place components. Furthermore, when the walls of the first groove 330 are needed to clamp and secure components or fixings such as elastic sleeves, the clamping of the walls on opposite sides of the first groove 330 is more stable. After the partition plate 500 is removed, the components or fixings such as elastic sleeves are less likely to slip out of the first groove 330, making it easier to install and remove components such as reinforcement units that are less frequently installed and removed.

[0097] In the embodiment of the present application, the upper cover plate 410 covers the upper surface of the first mounting portion 332, and the upper surface of the first mounting portion 332 is fixedly connected to the lower surface of the upper cover plate 410. The lower cover plate 420 covers the lower surface of the second mounting portion 333, and the lower surface of the second mounting portion 333 is fixedly connected to the upper surface of the lower cover plate 420.

[0098] It can be understood that the first mounting portion 332 and the second mounting portion 333 protrude from a side of the door sill beam 330 on which they are located that faces the second cavity 610 .

[0099] In this way, it is convenient to assemble and disassemble the upper cover plate 410 and the lower cover plate 420 from the door sill beam 300 including the first groove 330. In addition, the second cavity is formed with a larger size in the vertical direction.

[0100] It is understood that the upper surface of the first mounting portion 332 and the lower surface of the upper cover plate 410 can be fixedly connected by welding, bonding, clamping, fastener connection, etc. The lower surface of the second mounting portion 333 and the upper surface of the lower cover plate 420 can be fixedly connected by welding, bonding, clamping, fastener connection, etc.

[0101] It can be understood that, for the threshold beam 300 that does not include the first groove 330, the upper cover plate 410 can be covered on the upper surface of the threshold beam 300, and the upper cover plate 410 can be fixedly connected to the upper surface of the threshold beam 300 by welding, bonding, clamping, fastener connection, etc., and the lower cover plate 420 can be covered on the lower surface of the threshold beam 300, and the lower cover plate 420 can be fixedly connected to the lower surface of the threshold beam 300 by welding, bonding, clamping, fastener connection, etc.

[0102] In the embodiment of the present application, the groove cavity of at least one first groove 330 passes through the door sill beam 300 along the extending direction of the door sill beam 300 where the groove cavity is located.

[0103] Thus, for the first groove 330 that runs through both ends of the rocker beam 300, components can be installed into the first groove 330 through the notch of the first groove 330 and the openings at both ends of the first groove 330 along the rocker beam 300, making it more convenient to install components into the first groove 330. Furthermore, when the pipeline 800 connecting the front and rear components of the vehicle is installed in the first groove 330, the openings at both ends of the first groove 330 along the rocker beam 300 facilitate the routing of the pipeline 800.

[0104] It is understandable that when both the left sill beam 310 and the right sill beam 320 include the first groove 330, only the first groove 330 of the left sill beam 310 may pass through both ends in the extension direction of the left sill beam 310, or only the first groove 330 of the right sill beam 320 may pass through both ends in the extension direction of the right sill beam 320, or the first groove 330 of the left sill beam 310 may pass through both ends in the extension direction of the left sill beam 310, and the first groove 330 of the right sill beam 320 may pass through both ends in the extension direction of the right sill beam 320.

[0105] In the embodiment of the present application, a reinforcing unit 700 is provided in at least one first groove 330 , and the shape of the reinforcing unit 700 is in conformity with the inner surface of the first groove 330 in which it is located.

[0106] In this way, the strength of the rocker beam 300 equipped with the reinforcement unit 700 is higher, and the reinforcement unit 700 is easier to assemble on the rocker beam 300 .

[0107] It is understandable that when both the left sill beam 310 and the right sill beam 320 include the first groove 330, the reinforcing unit 700 may be provided only in the first groove 330 of the left sill beam 310, or only in the first groove 330 of the right sill beam 320, or both in the first groove 330 of the left sill beam 310 and the first groove 330 of the right sill beam 320.

[0108] It can be understood that the reinforcing unit 700 can have a certain elasticity, and the reinforcing unit 700 can be pressed into the first groove 330 through the notch of the first groove 330. The upper and lower sides of the reinforcing unit 700 can respectively contact the upper and lower groove walls of the first groove 330, and the reinforcing unit 700 can be pressed and fixed in the first groove 330 through the upper and lower groove walls of the first groove 330.

[0109] In the embodiment of the present application, the partition plate 500 abuts against the reinforcing unit 700 in the adjacent first groove 330 .

[0110] In this way, the reinforcing unit 700 can be more firmly fixed in the first groove 330. In addition, the reinforcing unit 700 is large in size and the partition plate 500 can exert a force on the reinforcing unit 700 to resist external impact, so the reinforcing unit 700 has a better reinforcing effect on the door sill beam 300.

[0111] It is understandable that the reinforcing unit 700 can be clamped and fixed by the partition plate 500 and the bottom of the first groove 330. The bottom of the first groove 330 is the groove wall on the side of the first groove 330 opposite to the groove opening.

[0112] The reinforcing unit 700 mounted in the first groove 330 of the left sill beam 310 is referred to as the left reinforcing unit 710, and the reinforcing unit 700 mounted in the first groove 330 of the right sill beam 320 is referred to as the right reinforcing unit 720. The right side of the left reinforcing unit 710 can abut against the partition plate 500 located between the left sill beam 310 and the battery 600, while the left side of the left reinforcing unit 710 can abut against the bottom of the first groove 330 of the left sill beam 310. The left side of the right reinforcing unit 720 can abut against the partition plate 500 located between the right sill beam 320 and the battery 600, while the right side of the right reinforcing unit 720 can abut against the bottom of the first groove 330 of the right sill beam 320.

[0113] In an embodiment of the present application, at least one reinforcement unit 700 is made of a negative Poisson's ratio material.

[0114] In this way, the reinforcing unit 700 made of the negative Poisson's ratio material expands when subjected to an impact, thereby improving the reinforcing effect of the door sill beam 300 when subjected to an external impact.

[0115] It is understood that when the left sill beam 310 is equipped with the left reinforcement unit 710 and the right sill beam 320 is equipped with the right reinforcement unit 720, only one of the left reinforcement unit 710 and the right reinforcement unit 720 may be made of a negative Poisson's ratio material. Alternatively, both the left reinforcement unit 710 and the right reinforcement unit 720 may be made of a negative Poisson's ratio material.

[0116] It can be understood that the Poisson's ratio of the reinforcing unit 70 made of a negative Poisson's ratio material is a negative value.

[0117] For example, the negative Poisson's ratio material may include, but is not limited to, a metal foam material such as foamed aluminum. In this way, the reinforcement unit 700 is light in weight, which is beneficial to the lightweight design of the vehicle.

[0118] In an embodiment of the present application, the threshold beams 300 provided on the left and right sides of the upper cover plate 410 and the lower cover plate 420 each include a first groove 330 , and the first grooves 330 of the threshold beams 300 on the left and right sides of the upper cover plate 410 and the lower cover plate 420 are each equipped with a reinforcement unit 700 made of a Poisson's ratio material.

[0119] Of course, part or all of the reinforcing unit 700 may be made of a material with a positive Poisson's ratio, as long as the strength of the door sill beam 300 where the reinforcing unit 700 is located can be improved.

[0120] In the embodiment of the present application, the sill beam 300 has an energy absorbing cavity 340 therein. In the sill beam 300 including the first groove 330 , the energy absorbing cavity 340 is formed between the groove wall of the first groove 330 and the outer wall of the sill beam 300 .

[0121] In this way, the door sill beam 300 has better anti-collision performance.

[0122] It is understandable that each rocker beam 300 may have a plurality of energy absorbing cavities 340 therein.

[0123] It is understood that the energy absorbing cavity 340 can be formed by one or more partition walls provided within the sill beam 300 and the outer wall of the sill beam 300, and the first groove 330 can be formed by the partition walls within the sill beam 300 and the upper and lower outer walls of the sill beam 300. Specifically, the first groove 330 can be formed by removing the cavity wall of the energy absorbing cavity 340 on the side of the sill beam 300 that is adjacent to the second cavity 610.

[0124] In the embodiment of the present application, a cold plate 430 is further provided in the second cavity 610. The battery 600 can be fixed on the cold plate 430. The cold plate 430 is fixed to the lower surface of the upper cover plate 410 or the upper surface of the lower cover plate 420. The battery 600 can be mounted on the lower surface of the upper cover plate 410 or the upper surface of the lower cover plate 420 via the cold plate 430. This facilitates heat dissipation of the battery 500.

[0125] It is understood that the cold plate 430 can be an integral structure with the upper cover plate 410 or the lower cover plate 420, and the cold plate 430 can also be mounted on the lower surface of the upper cover plate 410 or the upper surface of the lower cover plate 420 by bonding, welding, clamping, fastener connection, etc. The battery can be mounted on the cold plate 430 by bonding, clamping, etc.

[0126] Figure 6 is a schematic diagram of a threshold beam, reinforcement unit and pipeline provided in an embodiment of the present application before assembly, Figure 7 is a schematic diagram of a threshold beam assembly provided in an embodiment of the present application, and Figure 8 is a schematic diagram of a threshold beam assembly and pipeline provided in an embodiment of the present application after complete assembly.

[0127] As shown in FIG. 6 to FIG. 8 , and referring to FIG. 2 to FIG. 4 , in the embodiment of the present application, at least one reinforcing unit 700 includes a second groove 730 .

[0128] In this way, it is convenient to assemble components such as the pipeline 800 in the door sill beam 300 provided with the reinforcement unit 700 .

[0129] It can be understood that the second groove 730 can extend along the length direction of the reinforcing unit 700 where it is located.

[0130] It is understood that when both the left and right sill beams 310 and 320 include the first groove 330, and the left and right reinforcing units 710 and 720 are respectively mounted in the first grooves 330 of the left and right sill beams 310 and 320, only the left reinforcing unit 710 may include the second groove 730, only the right reinforcing unit 720 may include the second groove 730, or both the left and right reinforcing units 710 and 720 may include the second groove 730. The number, size, and position of the second grooves 730 may be determined based on the number, size, and position of the components to be mounted in the second grooves 730.

[0131] In the embodiment of the present application, the opening of the second groove 730 faces the battery, that is, the opening of the second groove 730 faces the second cavity 610 .

[0132] In this way, it is easier to take and place components such as pipelines in the second groove 730 .

[0133] In an embodiment of the present application, the second groove 730 may be a trapezoidal groove, and the distance between the upper and lower edges of the groove opening of the second groove 730 is greater than the distance between the upper and lower edges of the groove bottom.

[0134] This makes it easier to take components such as the pipeline 800 out of the second groove 730, facilitates assembly and disassembly of components with high frequency in the second groove 730, and facilitates inspection and maintenance of the components in the second groove 730. In addition, the second groove 730 has a larger cavity size.

[0135] It can be understood that the groove bottom of the second groove 730 is the groove wall on the side of the second groove 730 opposite to the groove opening.

[0136] It can be understood that the components assembled in the second groove 730 can be clamped and fixed by the groove wall of the second groove 730 and the adjacent partition plate 500 .

[0137] Of course, the notch of the second groove 730 can also face one side of the groove wall of the first groove 330 in which it is located. After the component can be assembled into the second groove 730, the reinforcement unit 700 assembled with the component can be installed into the first groove 330. The component assembled in the second groove 730 can be clamped and fixed by the groove wall of the second groove 730 and the groove wall of the first groove 330 in which it is located.

[0138] In the embodiment of the present application, the groove cavity of at least one second groove 730 passes through the reinforcement unit 700 along the extension direction of the door sill beam 300 in which the second groove 730 is located.

[0139] Thus, components such as the pipeline 800 can be installed into the second groove 730, which runs through both ends of the reinforcement unit 700 along the extension direction of the rocker beam 300 in which it is located, through the notch of the second groove 730 and the openings at both ends of the reinforcement unit 700 along the extension direction of the rocker beam 300 in which it is located. This makes it more convenient to install components such as the pipeline 800 into the second groove 730. In addition, when the pipeline 800 used to connect the front and rear components of the vehicle is installed in the second groove 730, the second groove 730 runs through the openings at both ends of the reinforcement unit 700 along the extension direction of the rocker beam 300 in which it is located, making it easier to route the pipeline 800.

[0140] It can be understood that when both the left reinforcing unit 710 and the right reinforcing unit 720 include the second groove 730, only the second groove 730 of the left reinforcing unit 710 can be made to pass through both ends of the left reinforcing unit 710 along the extension direction of the left sill beam 310, or only the second groove 730 of the right reinforcing unit 720 can be made to pass through both ends of the right reinforcing unit 720 along the extension direction of the right sill beam 320. It can also be made that the second groove 730 of the left reinforcing unit 710 passes through both ends of the left reinforcing unit 710 along the extension direction of the left sill beam 310, and the second groove 730 of the right reinforcing unit 720 passes through both ends of the right reinforcing unit 720 along the extension direction of the right sill beam 320.

[0141] In the embodiment of the present application, a pipeline 800 is arranged in at least one second groove 730 .

[0142] In this way, the pipeline 800 connecting the front and rear components of the vehicle can be arranged in the rocker beam 300 provided with the reinforcement unit 700. It is more convenient to route the pipeline 800 connecting the front and rear components of the vehicle in the rocker beam 300 provided with the reinforcement unit 700. In addition, the space utilization rate of the rocker beam 300 is high, which is conducive to saving the space required for arranging components of the entire vehicle.

[0143] It is understandable that when the reinforcement unit 700 is assembled in the first groove 330 , the pipeline 800 assembled in the first groove 330 may be located in the second groove 730 of the reinforcement unit 700 .

[0144] It is understood that when both the left reinforcing unit 710 and the right reinforcing unit 720 include the second groove 730, the pipeline 800 may be arranged only in the second groove 730 of the left reinforcing unit 710, or only in the second groove 730 of the right reinforcing unit 720, or both in the second groove 730 of the left reinforcing unit 710 and the right reinforcing unit 720. While the pipeline 800 may be arranged in the second groove 730 of both the left reinforcing unit 710 and the right reinforcing unit 720, different pipelines 800 may be arranged in the second groove 730 of the left reinforcing unit 710 and the second groove 730 of the right reinforcing unit 720.

[0145] Figure 9 is a schematic diagram of the upper cover plate, lower cover plate and partition plate of a battery mounting system provided in an embodiment of the present application before assembly, and Figure 10 is a schematic diagram of the upper cover plate, lower cover plate and partition plate of another battery mounting system provided in an embodiment of the present application before assembly.

[0146] As shown in Figures 9 and 10, in some embodiments of the present application, the partition plate 500 is an integral structure with one of the upper cover plate 410 and the lower cover plate 420, and the partition plate 500 is sealed with the other of the upper cover plate 410 and the lower cover plate 420 by a seal (not shown) to form a second cavity 610 for installing the battery 600.

[0147] In this way, the upper cover plate 410, the lower cover plate 420 and the partition plate 500 are assembled more conveniently, and the sealing effect between the partition plate 500 and the upper cover plate 410 or the lower cover plate 420 with which it is an integral structure is better.

[0148] It can be understood that the partition plate 500 can be an integral structure with the upper cover plate 410, and the partition plate 500 and the lower cover plate 420 are independent structural components. The lower end of the partition plate 500 can be fixedly connected to the lower cover plate 420 by bonding, welding, fastener connection, etc., and the lower end of the partition plate 500 and the lower cover plate 420 can be sealed by a seal provided between the two.

[0149] The partition plate 500 can also be an integral structure with the lower cover plate 420. The partition plate 500 and the upper cover plate 410 are independent structural components. The upper end of the partition plate 500 can be fixedly connected to the upper cover plate 410 by bonding, welding, fastener connection, etc. The upper end of the partition plate 500 and the upper cover plate 410 can be sealed by a seal provided between the two.

[0150] In some embodiments of the present application, the partition plate 500, the upper cover plate 410, and the lower cover plate 420 can be three independent structural members. The upper end of the partition plate 500 can be fixedly connected to the upper cover plate 410 by welding, bonding, fastener connection, etc., and the lower end of the partition plate 500 can be fixedly connected to the lower cover plate 420 by welding, bonding, fastener connection, etc. The lower end of the partition plate 500 and the lower cover plate 420 can be sealed by a seal provided therebetween, and the upper end of the partition plate 500 and the upper cover plate 410 can be sealed by a seal provided therebetween to form a second cavity 610 for installing the battery 600.

[0151] FIG11 is a schematic diagram of an upper cover plate, a lower cover plate and a partition plate of another battery mounting system provided in an embodiment of the present application before assembly.

[0152] As shown in FIG11 , in some embodiments of the present application, the separator 500 includes a first section 510 and a second section 520. The first section 510 is integrally formed with the upper cover 410, and the second section 520 is integrally formed with the lower cover 420. In the same separator 500, the lower end of the first section 510 is fixedly butted against the upper end of the second section 520. The first section 510 and the second section 520 are sealed by a seal (not shown) to form a second cavity 610 for mounting the battery 600.

[0153] In this way, the upper cover plate 410, the lower cover plate 420, and the partition plate 500 are assembled more easily. In addition, before the upper cover plate 410, the lower cover plate 420, and the partition plate 500 are assembled, the first section 510 and the upper cover plate 410, as well as the second section 520 and the lower cover plate 420, are not easily broken, which helps to maintain the integrity of the partition plate 500 before assembly and helps to form the second cavity 610 with a larger size in the vertical direction.

[0154] It can be understood that, in the same partition plate 500 , the first section 510 and the second section 520 can be sealed by a sealing member disposed therebetween.

[0155] It is understandable that the sealing member between the partition plate 500 and the upper cover plate 410 or the lower cover plate 420 and the sealing member between the first section 510 and the second section 520 may be a sealant, a sealing strip, or the like.

[0156] In an embodiment of the present application, the rocker beam 300 may further include a third groove 350 with a notch facing upward. The third groove 350 may be used for inserting the upper body of the vehicle body assembly 100 to position the rocker beam 300 with the upper body.

[0157] In the embodiment of the present application, the third groove 350 may be a V-shaped groove or a trapezoidal groove. In other words, the width of the third groove 350 in the left-right direction gradually decreases from the groove opening to the groove bottom, and the angle between the groove walls on the left and right sides of the third groove 350 is acute. This facilitates the insertion of the upper body into the third groove 350 and facilitates guiding the upper body inserted into the third groove 350 to the groove bottom.

[0158] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A threshold beam assembly, characterized in that: include: A threshold beam, the threshold beam comprising a first groove, the first groove extending along the length direction of the threshold beam, The first groove includes a first mounting portion and a second mounting portion; wherein, The first mounting portion is used to connect to the upper cover of the battery; The second mounting portion is used to connect the lower cover of the battery; The notch of the first groove is used to face the battery.

2. The door sill beam assembly according to claim 1, wherein: A reinforcing unit is provided in the first groove. The shape of the reinforcing unit is in conformity with the inner surface of the first groove, and the reinforcing unit is made of a negative Poisson's ratio material.

3. The door sill beam assembly according to claim 2, wherein: The reinforcement unit includes a second groove for arranging a pipeline.

4. The door sill beam assembly according to any one of claims 1 to 3, characterized in that: It also includes a partition plate, which is combined with the first groove to form a first cavity that runs through the door sill beam in an extending direction, and the first cavity is used for arranging pipelines.

5. A battery installation system, characterized in that: Including upper cover plate, lower cover plate and threshold beam; The upper cover plate and the lower cover plate are both provided with the door sill beams on the left and right sides, and a second cavity is provided between the upper cover plate, the lower cover plate and the door sill beams on the left and right sides thereof, and the second cavity is used to install the battery; At least one of the threshold beams includes a first groove, the first groove extending along the length direction of the threshold beam where the first groove is located, and the notch of the first groove faces the second cavity; The first groove includes a first mounting portion and a second mounting portion, the first mounting portion is connected to the upper cover plate, and the second mounting portion is connected to the lower cover plate.

6. The battery mounting system according to claim 5, characterized in that: The groove cavity of at least one of the first grooves passes through the door sill beam along the extension direction of the door sill beam where the groove cavity is located.

7. The battery mounting system according to claim 5 or 6, characterized in that: A reinforcing unit is provided in at least one of the first grooves, and a shape of the reinforcing unit is fitted to an inner surface of the first groove in which it is located.

8. The battery mounting system according to claim 7, wherein: At least one of the reinforcement units includes a second groove, and at least one of the second grooves is used for arranging a pipeline.

9. The battery mounting system according to claim 8, characterized in that: The groove cavity of at least one of the second grooves passes through the reinforcement unit in which it is located along the extension direction of the door sill beam in which it is located.

10. The battery installation system according to any one of claims 7 to 9, characterized in that: At least one of the reinforcing units is made of a negative Poisson's ratio material.

11. The battery installation system according to any one of claims 5 to 10, characterized in that: The upper cover plate is connected to the upper surface of the first mounting portion, and the lower cover plate is connected to the lower surface of the second mounting portion.

12. The battery installation system according to any one of claims 5 to 11, characterized in that: A partition plate is further provided between the upper cover plate and the lower cover plate. The partition plate is used to enclose the upper cover plate and the lower cover plate to form the second cavity. The partition plate and the adjacent first groove enclose a first cavity. At least one of the first cavities is used for arranging pipelines.

13. The battery mounting system according to claim 12, wherein: The partition plate is arranged at the notch of the adjacent first groove.

14. The battery mounting system according to claim 12 or 13, characterized in that: The upper end of the partition plate is fixedly connected to the upper cover plate, and the lower end of the partition plate is fixedly connected to the lower cover plate.

15. The battery mounting system according to claim 14, wherein: The partition plate is an integral structure with one of the upper cover plate and the lower cover plate, and the partition plate is sealed with the other of the upper cover plate and the lower cover plate via a sealing member.

16. The battery mounting system according to claim 14, wherein: The partition plate includes a first section and a second section, the first section and the upper cover plate are an integral structure, and the second section and the lower cover plate are an integral structure; In the same partition plate, the lower end of the first section is butted and fixed with the upper end of the second section, and the first section and the second section are sealed by a sealing member.

17. The battery mounting system according to any one of claims 12 to 16, characterized in that: The partition plate abuts against the reinforcing unit in the adjacent first groove.

18. A chassis assembly, characterized in that: It comprises a battery and a battery mounting system as described in any one of claims 5-17, wherein the battery is mounted in the battery mounting system.

19. A vehicle body assembly, characterized in that: It comprises a battery and a battery mounting system as described in any one of claims 5-17, wherein the battery is mounted in the battery mounting system.

20. A vehicle, characterized in that: It comprises a battery and a battery mounting system as described in any one of claims 5-17, wherein the battery is mounted in the battery mounting system.

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