Chassis of a vehicle and vehicle

Abstract

The application provides a chassis of a vehicle and the vehicle. The chassis of the vehicle comprises a rocker, a cross beam, a longitudinal beam end section and a connecting piece. The cross beam is connected to the rocker at the end of the first direction. The longitudinal beam end section is located at the end of the energy cabin in the second direction. The connecting piece is arranged between the rocker and the cross beam. The rocker and the cross beam are connected to the connecting piece on both sides of the connecting piece in the first direction. The first direction and the second direction have an included angle. Thus, on the one hand, the connecting strength of the connecting section can be improved, the structural strength of the chassis of the vehicle is improved, and the probability of the collision energy invading the energy cabin is reduced. On the other hand, the connection between the connecting section of the first cabin and the energy cabin or the connecting section of the second cabin and the energy cabin is realized through the connecting piece, the technical problems of difficult assembly and connection caused by material difference can be overcome, the assembly difficulty is reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a vehicle chassis and a vehicle. Background Technology

[0002] In related technologies, energy conservation and emission reduction are key to the sustainable development of the vehicle industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important part of the sustainable development of the vehicle industry. However, the installation of battery devices in electric vehicles results in a greater overall vehicle weight, and the connection structure between the battery device and the vehicle body has relatively low strength, making it difficult to meet collision safety requirements and posing safety hazards. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this invention is to provide a vehicle chassis and vehicle, wherein the connection between the energy compartment and other compartments of the chassis is stronger, thereby improving safety.

[0004] This application further proposes a vehicle using the chassis of the aforementioned vehicle.

[0005] In a first aspect, this application provides a vehicle chassis, including: a sill beam, a crossbeam, longitudinal beam end sections, and a connector. The end of the crossbeam in a first direction is connected to the sill beam, and an energy compartment is defined between the sill beam and the crossbeam, the energy compartment being used to accommodate battery cells. The end sections of the longitudinal beams are located at the ends of the energy compartment in a second direction. The connector is disposed between the sill beam and the crossbeam, and the end sections of the longitudinal beams and the sill beam are connected to the connector on both sides of the connector in the first direction. The sill beam and the crossbeam are connected to the connector on both sides of the connector in the first direction, and the first direction and the second direction have an included angle.

[0006] According to the vehicle chassis of the present application embodiment, by further providing connecting members in the connection section area defined by the longitudinal beam end section, sill beam, and crossbeam, the connection between the sill beam and the longitudinal beam end section; the sill beam and the crossbeam; and the connection between the sill beam, crossbeam, and longitudinal beam end section can be realized through the connecting members. On the one hand, the connection strength of the connection section can be improved, thereby improving the structural strength of the vehicle chassis and reducing the probability of collision energy intruding into the energy compartment, thus improving the safety and reliability of the vehicle chassis. On the other hand, by realizing the connection between the first compartment and the energy compartment, or the connection between the second compartment and the energy compartment through the connecting members, the technical problems of difficult assembly and connection caused by material differences can be overcome, reducing assembly difficulty and improving assembly efficiency.

[0007] According to some embodiments of this application, the longitudinal beam end section includes: a body portion, and a connector including a first plate, the first plate having a first connecting portion disposed along a second direction and a second connecting portion disposed along a third direction, the body portion being connected to the first connecting portion and the second connecting portion, the third direction having an angle with the first direction, and the second direction being different from the third direction.

[0008] In the above technical solution, the first connecting part can connect the crossbeam, the main body, and the sill beam in the first direction. The second connecting part can also connect the crossbeam, the main body, and the sill beam in the first direction. The multiple first connecting parts arranged along the second direction and the multiple second connecting parts arranged along the third direction can fix the crossbeam, the main body, and the sill beam in the first direction. At the same time, the first connecting parts form a mechanical transmission path extending along the second direction, and the second connecting parts form a mechanical transmission path extending along the third direction. This can improve the connection strength and reliability, further enrich the mechanical transmission path, improve the mechanical transmission effect, reduce the probability of deformation of the vehicle chassis, and improve safety and reliability.

[0009] According to some embodiments of this application, the end section of the longitudinal beam further includes an overlapping arm connected to the body portion. The overlapping arm is located on one side of the body portion in a second direction and extends toward the crossbeam. At least a portion of the overlapping arm overlaps the sill beam and is connected to the sill beam.

[0010] In the above technical solution, a lap arm is provided on the side of the main body facing the energy compartment. The end section of the longitudinal beam is connected to the sill beam and the crossbeam through the first connecting part and the second connecting part. At the same time, it is also connected to the sill beam through the part of the lap arm that overlaps on the sill beam. The lap arm and the sill beam can be connected in a third direction. The first connecting part, the second connecting part, and the lap arm respectively realize the connection between the end section of the longitudinal beam and the sill beam in the first direction, the second direction, and the third direction. This can not only further improve the connection strength between the end section of the longitudinal beam and the sill beam, but also improve the impact load transmission effect between the sill beam and the end section of the longitudinal beam, and improve the support effect, forming effective support to reduce the probability of local deformation of the vehicle chassis and transmission to the energy compartment or the cockpit, thereby further improving reliability and stability.

[0011] According to some embodiments of this application, at least a portion of the lap arm is also erected on and connected to the crossbeam.

[0012] In the above technical solution, by setting up the overlapping arm, the connection between the end section of the longitudinal beam and the transverse beam can be realized on at least one side of the transverse beam in the third direction. This not only further improves the connection strength between the end section of the longitudinal beam and the transverse beam, but also further forms a mechanical transmission path between the end section of the longitudinal beam and the transverse beam. While realizing the transfer of collision energy to the transverse beam, it can improve the support effect of the connecting section, thereby reducing the intrusion into the energy compartment and the crew compartment and improving safety.

[0013] According to some embodiments of this application, the first connecting portion and the overlapping arm are respectively located on both sides of the threshold beam in a third direction.

[0014] In the above technical solution, the sill beam is connected to the end section of the longitudinal beam on one side of the third direction via a first connecting part, and to the end section of the longitudinal beam on the other side of the third direction via an overlapping arm. This allows the end section of the longitudinal beam to be connected to the sill beam on both the upper and lower sides, making the force transmission between the end section of the longitudinal beam and the sill beam more uniform in the vertical direction. This improves the bending and torsional stress of the sill beam in the vertical direction and can further reduce the probability and degree of intrusion of the sill beam and the end section of the longitudinal beam into the passenger compartment, thereby improving safety.

[0015] According to some embodiments of this application, the vehicle chassis further includes: a limiting beam, which is located within the energy compartment and limits the battery cells within the energy compartment; the limiting beam and the crossbeam are arranged opposite each other in a second direction; and the limiting beam is connected to the sill beam.

[0016] In the above technical solution, not only can the expansion of the battery cell be suppressed by the limiting beam, but when the connecting section deforms (such as due to a high-speed collision), it can intrude into the gap between the limiting beam and the crossbeam, thereby reducing the probability of the connecting section intruding into the energy compartment and causing damage to the battery cell, and further improving the safety of the vehicle chassis.

[0017] According to some embodiments of this application, the chassis of the vehicle further includes a support block disposed between the limiting beam and the crossbeam, and connected to the sill beam.

[0018] In the above technical solution, the support block is set between the limiting beam and the crossbeam so that the collision energy borne by the crossbeam can be transferred to the end area of ​​the limiting beam through the support block. While enriching the mechanical transmission path, it can provide support for the limiting beam at the end of the limiting beam, so as to further reduce the amount of intrusion of the connecting section into the energy compartment when a collision occurs. In the first direction, the sill beam and the support block can be connected by fasteners, which can also improve the fixed stability of the support block on the sill beam.

[0019] According to some embodiments of this application, the support block is connected to the limiting beam and the crossbeam at both ends in the second direction, respectively.

[0020] In the above technical solution, one end of the support block in the second direction is connected to the crossbeam, and the other end of the support block in the second direction is connected to the limiting beam. The support block provides strong support between the limiting beam and the crossbeam in the second direction. The support block is also connected to the sill beam, the crossbeam and the limiting beam, which can further improve the connection strength and structural rigidity of the connecting section area, thereby improving the structural strength and stability of the vehicle chassis.

[0021] According to some embodiments of this application, the connector further includes: a second plate extending along a first direction, the second plate being located between the support block and the crossbeam, and the second plate being connected to the support block and the crossbeam.

[0022] In the above technical solution, the second plate is used to connect the support block and the crossbeam, and the first plate is used to connect the end section of the longitudinal beam, the crossbeam and the sill beam. In the connecting section, the connection of the end section of the longitudinal beam, the sill beam, the crossbeam, the support block and the limiting beam is realized through the setting of the connector. While overcoming material limitations and realizing the fastening connection of various different material components, the structural strength of the connecting section is higher, there are more mechanical transmission paths between multiple beams, the transmission of collision energy is more uniform, the structural strength of the vehicle chassis is higher and the safety is higher.

[0023] Secondly, this application proposes a vehicle, including: the chassis of the vehicle in the above embodiments.

[0024] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a schematic diagram of a vehicle according to an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the chassis of a vehicle according to an embodiment of this application at one angle;

[0028] Figure 3 yes Figure 2 A diagram illustrating the breakdown;

[0029] Figure 4 This is a schematic diagram of the chassis of a vehicle according to an embodiment of this application from another angle;

[0030] Figure 5 yes Figure 4 A diagram illustrating the breakdown;

[0031] Figure 6This is a top view of the chassis of a vehicle according to an embodiment of this application;

[0032] Figure 7 This is a side view of the chassis of a vehicle according to an embodiment of this application;

[0033] Figure 8 This is a cross-sectional view of the threshold beam, the end section of the longitudinal beam, and the cross beam according to an embodiment of this application;

[0034] Figure 9 This is a cross-sectional view of the threshold beam, longitudinal beam end section, cross beam, support block and limiting beam according to an embodiment of this application;

[0035] Figure 10 This is a cross-sectional view of the sill beam and support block according to an embodiment of this application;

[0036] Figure 11 This is a schematic diagram of a connector according to an embodiment of this application;

[0037] Figure 12 This is a schematic diagram of the end section of the longitudinal beam according to an embodiment of this application.

[0038] Figure label:

[0039] The vehicle's chassis is 100.

[0040] Threshold beam 10, crossbeam 20,

[0041] Longitudinal beam end section 30, main body 31, lap arm 32.

[0042] Connector 40, first plate 41, first connecting part 411, second connecting part 412, second plate 42.

[0043] Support block 50, limiting beam 60

[0044] Vehicle 200, motor 300, controller 400

[0045] First module a, energy module b, second module c, area d, area e, area f, area g, area h

[0046] First direction X, second direction Y, third direction Z. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0049] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0052] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0053] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0054] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0055] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0056] In this application, "multiple" means two or more (including two).

[0057] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in aerospace and other fields. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0058] To improve the integration of the vehicle body and increase the energy density of the battery devices installed on the vehicle, the battery devices can be integrated into the body or chassis through CTB (cell to body) architecture or CTC (cell to chassis) architecture to improve energy density. That is, by integrating energy compartments on the chassis and loading battery cells through the energy compartments.

[0059] However, by mounting the energy compartment on the battery cell, the vehicle chassis is divided into a first compartment, an energy compartment, and a second compartment in the direction of vehicle travel. The structural strength of the connecting sections (i.e., the connecting areas) between the first compartment and the energy compartment, and between the second compartment and the energy compartment, is low, making it difficult to meet collision requirements and potentially leading to chassis breakage.

[0060] Based on the above considerations, in order to improve energy density and integration, this application proposes a vehicle chassis, and further, by setting a connecting structure in the connection section between the energy compartment and the first compartment and the energy compartment and the second compartment, not only can the connection strength be ensured, but the transfer of structural components made of different materials can also be realized.

[0061] It should be noted that in this application, the first direction X corresponds to the width direction of the vehicle, the second direction Y corresponds to the length direction of the vehicle (i.e., the direction of travel of the vehicle), and the third direction Z, i.e. the height direction of the energy compartment, is usually the height direction of the vehicle.

[0062] refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 200 provided in some embodiments of this application. The vehicle 200 can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc.

[0063] The vehicle body has a chassis 100, which sequentially includes a first compartment a, an energy compartment b, and a second compartment c. Battery cells can be housed in energy compartment b. A motor 300, a controller 400, etc., can be housed in either the first compartment a or the second compartment c. The battery cells in energy compartment b can power the vehicle 200; for example, the battery can serve as the operating power source for the vehicle 200. The vehicle 200 may also include a controller 400 and a motor 300. The controller 400 controls the battery to supply power to the motor 300, for example, to meet the power needs of the vehicle 200 during startup, navigation, and driving.

[0064] In some embodiments of this application, the battery can not only serve as the operating power source for the vehicle 200, but also as the driving power source for the vehicle 200, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 200.

[0065] Battery cells can be installed inside the energy compartment b. The energy compartment b can be defined by the crossbeam 20 and the sill beam 10. The crossbeam 20 can include the first beam corresponding to the first compartment a and the second beam corresponding to the second compartment c. The sill beam 10 includes the left sill beam and the right sill beam. The four components are used to define the energy compartment b.

[0066] There can be multiple battery cells, which can be connected in series, parallel, or a combination thereof. A combination thereof means that multiple battery cells are connected in both series and parallel configurations. Multiple battery cells can be directly connected in series, parallel, or a combination thereof, and then the entire assembly of these battery cells is housed within a cavity. Alternatively, the battery can consist of multiple battery cells first connected in series, parallel, or a combination thereof to form a battery module, and then these modules are connected in series, parallel, or a combination thereof to form a whole, which is then housed within the energy compartment b. The battery may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells.

[0067] Each battery cell can be a secondary battery cell or a primary battery cell; it can also be a lithium-sulfur battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, but is not limited to these. The battery cell can be cylindrical, flat, cuboid, or other shapes.

[0068] A battery cell refers to the smallest unit that makes up a battery. A battery cell may include an end cap, a housing, electrode assemblies, and other functional components. An end cap is a component that closes onto the opening of the housing to isolate the internal environment of the battery cell from the external environment. The shape of the end cap may be adapted to the shape of the housing to fit the housing. Optionally, the end cap may be made of a material with a certain degree of hardness and strength, so that the end cap is not easily deformed under pressure or impact, giving the battery cell higher structural strength and improving safety performance. Functional components such as electrode terminals may be provided on the end cap. The electrode terminals can be used to electrically connect to the electrode assembly for outputting or inputting electrical energy into the battery cell. In some embodiments, the end cap may also be provided with a pressure relief mechanism for releasing internal pressure when the internal pressure or temperature of the battery cell reaches a threshold. The end cap can also be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this application embodiment does not impose any special limitations on this.

[0069] In some embodiments, an insulating element may be provided on the inner side of the end cap. The insulating element can be used to isolate the electrical connection components within the housing from the end cap to reduce the risk of short circuits. For example, the insulating element may be made of plastic, rubber, etc.

[0070] The housing is a component used to fit with the end cap to form the internal environment of a battery cell. This internal environment can accommodate electrode components, electrolyte, and other parts. The housing and end cap can be independent components. An opening can be provided on the housing, and the end cap closes the opening to form the internal environment of the battery cell. Alternatively, the end cap and housing can be integrated. Specifically, the end cap and housing can form a common connecting surface before other components are inserted into the housing. When it is necessary to encapsulate the interior of the housing, the end cap closes the housing. The housing can have various shapes and sizes, such as cuboid, cylindrical, hexagonal prism, etc. Specifically, the shape of the housing can be determined according to the specific shape and size of the electrode components. The housing can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. This application does not impose any special limitations on these materials.

[0071] Electrode assemblies are the components within a single battery cell where electrochemical reactions occur. The casing may contain one or more electrode assemblies. Electrode assemblies are primarily formed by winding or stacking positive and negative electrode plates, typically with a separator between them. The portions of the positive and negative electrode plates containing active material constitute the main body of the electrode assembly, while the portions without active material each form a tab. The positive and negative tabs can be located together at one end of the main body or separately at both ends. During charging and discharging, the positive and negative active materials react with the electrolyte, and the tabs connect to the electrode terminals to form a current loop.

[0072] The following is for reference. Figures 1-12 The chassis 100 and vehicle 200 of the vehicle according to embodiments of the present invention are described.

[0073] like Figure 1 As shown, this application provides a vehicle chassis 100. The vehicle chassis 100 typically includes a first compartment a, an energy compartment b, and a second compartment c. The energy compartment b can be defined by a sill beam 10, a crossbeam 20, etc., that is, the two ends of the crossbeam 20 are connected to the sill beam 10 to define a generally rectangular energy compartment b. Battery cells, connectors between battery cells, and a battery management unit can be installed in the energy compartment b. The first compartment a and the second compartment c can be used to house components such as a controller 400, a motor 300, and an engine, or can be formed as a luggage compartment. The connection section between the first compartment a and the energy compartment b, and the connection section between the second compartment c and the energy compartment b are specifically defined by the longitudinal beam end section 30 being connected to the sill beam 10 and the crossbeam 20.

[0074] For example, the first compartment a and the second compartment c are located at the front and rear ends of the energy compartment b, respectively. The end section 30 of the longitudinal beam can be the rear section of the front longitudinal beam or the front section of the rear longitudinal beam. For example, the rear section of the front longitudinal beam, the sill beam 10 and the front crossbeam form the connection section between the first compartment a and the energy compartment b, and the rear section of the rear longitudinal beam, the sill beam 10 and the rear crossbeam form the connection section between the second compartment c and the energy compartment b.

[0075] It should be noted that the connection strength of the connecting section is related to the collision resistance of the energy compartment b. The higher the structural strength of the connecting section and the better the support effect, the smaller the deformation of the energy compartment b after the collision, the better the protection effect on the battery cells, and the higher the safety.

[0076] Based on this, the embodiments of this application further provide a connector 40, that is, the chassis 100 of the vehicle includes: a sill beam 10, a crossbeam 20, a longitudinal beam end section 30 and a connector 40. The end of the crossbeam 20 in the first direction is connected to the sill beam 10, and an energy compartment b is defined between the sill beam 10 and the crossbeam 20. The energy compartment b is used to accommodate battery cells. The end section 30 of the longitudinal beam is located at the end of the energy compartment b in the second direction. The connector 40 is disposed between the sill beam 10 and the crossbeam 20, and the end section 30 of the longitudinal beam and the sill beam 10 are connected to the connector 40 on both sides of the connector 40 in the first direction. The sill beam 10 and the crossbeam 20 are connected to the connector 40 on both sides of the connector 40 in the first direction. The first direction and the second direction have an angle.

[0077] The first direction is the left-right direction (X direction) of vehicle 200, the second direction is the front-back direction (Y direction) of vehicle 200, and the third direction is the up-down direction (Z direction) of vehicle 200.

[0078] For example, in an embodiment where the longitudinal beam end section 30 is the rear section of the front longitudinal beam and the crossbeam 20 is the front crossbeam, the longitudinal beam end section 30, the sill beam 10, and the front crossbeam are connected in a first direction by a connector 40, and the longitudinal beam end section 30 and the sill beam 10 are located on both sides of the connector 40 in the first direction. In an embodiment where the longitudinal beam end section 30 is the front section of the rear longitudinal beam and the crossbeam 20 is the rear crossbeam, the longitudinal beam end section 30, the sill beam 10, and the rear crossbeam are connected by a connector 40, and the longitudinal beam end section 30 and the sill beam 10 are located on both sides of the connector 40 in the first direction.

[0079] The term "longitudinal beam end section 30 located at the end of energy compartment b in the second direction" means that energy compartment b is generally rectangular, and the front end of the rectangle (i.e., one end in the second direction) has two angular regions, and the rear end also has two angular regions. The longitudinal beam end section 30 can be set on each angular region.

[0080] Specifically, see Figure 2 , Figure 3 , Figure 4 as well as Figure 5As shown, the sill beam 10 and the crossbeam 20 are connected on both sides of the connector 40 via the connector 40, and the longitudinal beam end section 30 is connected to the sill beam 10 on both sides of the connector 40 via the connector 40. The connector 40 connects the sill beam 10, the longitudinal beam end section 30, and the crossbeam 20. When the vehicle chassis 100 is subjected to a collision, the longitudinal beam end section 30, the sill beam 10, and the crossbeam 20 can form multiple mechanical transmission paths, such as the longitudinal beam transmitting to the sill beam 10 and the longitudinal beam transmitting to the crossbeam 20. The connector 40 improves the connection strength of the connecting section, enhances the connection effect, and reduces the probability of connection failure after a collision, thus improving the collision energy transmission and dispersion effect. This reduces the probability of collision energy being directly transmitted into the energy compartment b, improving the protective effect of the energy compartment b. The connector 40 also enables the connection between the sill beam 10, the crossbeam 20, and the longitudinal beam end section 30, overcoming the technical problems of difficult connection and assembly caused by material differences among the three components.

[0081] It should be pointed out that, in combination Figure 6 As shown, the connector 40 connects the sill beam 10, the crossbeam 20, and the longitudinal beam end section 30. Specifically, at least a portion of the connecting section connects the sill beam 10 and the longitudinal beam end section 30 via the connector 40; at least a portion of the connecting section connects the sill beam 10 and the crossbeam 20 via the connector 40; and at least a portion of the connecting section connects the sill beam 10, the crossbeam 20, and the longitudinal beam end section 30 via the connector.

[0082] According to the vehicle chassis 100 of this application embodiment, by further providing a connector 40 in the connection section area defined by the longitudinal beam end section 30, the sill beam 10, and the crossbeam 20, the connection between the sill beam 10 and the longitudinal beam end section 30; the sill beam 10 and the crossbeam 20; and the sill beam 10, the crossbeam 20, and the longitudinal beam end section 30 can be realized through the connector 40. On the one hand, the connection strength of the connection section can be improved, thereby improving the structural strength of the vehicle chassis 100 and reducing the probability of collision energy intruding into the energy compartment b, thereby improving the safety and reliability of the vehicle chassis 100. On the other hand, by realizing the connection between the first compartment a and the energy compartment b, or the connection between the second compartment c and the energy compartment b through the connector 40, the technical problems of difficult assembly and connection caused by material differences can be overcome, reducing assembly difficulty and improving assembly efficiency.

[0083] According to some embodiments of this application, such as Figure 11 and Figure 12As shown, the longitudinal beam end section 30 includes: a body part 31, and a connector 40 including a first plate 41. The first plate 41 has a first connecting part 411 arranged along a second direction and a second connecting part 412 arranged along a third direction. The body part 31 is connected to the first connecting part 411 and the second connecting part 412. The third direction has an angle with the first direction, and the second direction is different from the third direction.

[0084] Specifically, the first plate 41 extends along the second direction and the third direction to form a plate structure, and a first connecting portion 411 extending along the second direction and a second connecting portion 412 extending along the second direction can be formed on the plate. The first connecting portion 411 and the second connecting portion 412 can both be constructed as a continuous plurality of mounting holes, and the mounting holes defining the first connecting portion 411 can also participate in defining the second connecting portion 412, and the mounting holes defining the second connecting portion 412 can also participate in defining the first connecting portion 411.

[0085] Furthermore, combined with Figure 5 , Figure 6 as well as Figure 7 As shown, Figure 5 Region d is used to connect with the first connecting part 411, and region e is used to connect with the second connecting part 412. Figure 7 The middle f region shows a detailed schematic diagram of the connection between the main body 31 and the second connecting part 412 via fasteners. Figure 7 The middle g area shows a detailed schematic diagram of the connection between the main body 31, the first connecting part 411, and the sill beam 10 via fasteners.

[0086] Therefore, the first connecting part 411 can connect the crossbeam 20, the body part 31, and the sill beam 10 in the first direction. The second connecting part 412 can also connect the crossbeam 20, the body part 31, and the sill beam 10 in the first direction. The multiple first connecting parts 411 arranged along the second direction and the multiple second connecting parts 412 arranged along the third direction can fix the crossbeam 20, the body part 31, and the sill beam 10 in the first direction. At the same time, the first connecting parts 411 form a mechanical transmission path extending along the second direction, and the second connecting parts 412 form a mechanical transmission path extending along the third direction. This can improve the connection strength and reliability, further enrich the mechanical transmission path, improve the mechanical transmission effect, reduce the probability of deformation of the vehicle chassis 100, and improve safety and reliability.

[0087] like Figure 2 , Figure 3 as well as Figure 12As shown, according to some embodiments of this application, the longitudinal beam end section 30 further includes an overlapping arm 32 connected to the body portion 31. The overlapping arm 32 is located on one side of the body portion 31 in the second direction and extends toward the crossbeam 20. At least a portion of the overlapping arm 32 overlaps the sill beam 10 and is connected to the sill beam 10.

[0088] Specifically, the main body 31 is provided with a connecting arm 32 on the side facing the energy compartment b. The longitudinal beam end section 30 is connected to the sill beam 10 and the crossbeam 20 through the first connecting part 411 and the second connecting part 412. At the same time, it is also connected to the sill beam 10 through the part of the connecting arm 32 that overlaps on the sill beam 10. The connecting arm 32 and the sill beam 10 can be connected in a third direction. The longitudinal beam end section 30 and the sill beam 10 can be connected in the first direction, the second direction and the third direction respectively through the first connecting part 411, the second connecting part 412 and the connecting arm 32. This can not only further improve the connection strength between the longitudinal beam end section 30 and the sill beam 10, but also improve the impact load transmission effect between the sill beam 10 and the longitudinal beam end section 30, and improve the support effect, forming effective support to reduce the probability of local deformation of the vehicle chassis 100 and transmission to the energy compartment b or the cockpit, thereby further improving reliability and stability.

[0089] For example, if the longitudinal beam end section 30 is configured as the rear section of the front longitudinal beam, then the overlapping arm 32 is located on the rear side of the body part 31 and extends rearward, and overlaps on one side of the height of the sill beam 10 (such as the upper or lower side) in a third direction, and can be fastened by fasteners. If the longitudinal beam end section 30 is configured as the front section of the rear longitudinal beam, then the overlapping arm 32 is located on the front side of the body part 31 and extends forward, and overlaps on one side of the height of the sill beam 10 in a third direction, and can be fastened by fasteners.

[0090] like Figure 2 and Figure 8 As shown, according to some embodiments of this application, the overlapping arm 32 is at least partially erected on and connected to the crossbeam 20.

[0091] The connecting arm 32 has a connecting flange, at least part of which overlaps with the sill beam 10 and is fastened to the sill beam 10 by fasteners. The connecting flange also overlaps with the crossbeam 20 and is further fastened by fasteners, so as to connect the end section 30 of the longitudinal beam and the crossbeam 20 by the connecting flange.

[0092] In this way, by setting up the overlapping arm 32, the longitudinal beam end section 30 and the transverse beam 20 can be connected on at least one side of the transverse beam 20 in the third direction. This not only further improves the connection strength between the longitudinal beam end section 30 and the transverse beam 20, but also forms a mechanical transmission path between the longitudinal beam end section 30 and the transverse beam 20. While transferring collision energy to the transverse beam 20, it can improve the support effect of the connecting section, thereby reducing intrusion into the energy compartment b and the crew compartment and improving safety.

[0093] Combination Figure 2 , Figure 4 as well as Figure 12 As shown, according to some embodiments of this application, the first connecting part 411 and the overlapping arm 32 are respectively located on both sides of the threshold beam 10 in a third direction, or the first connecting part 411 and the overlapping arm 32 are spaced apart in a third direction and are respectively connected to the threshold beam 10.

[0094] Specifically, the sill beam 10 is connected to the longitudinal beam end section 30 on one side of the third direction via the first connecting part 411, and to the longitudinal beam end section 30 on the other side of the third direction via the overlapping arm 32. This allows the longitudinal beam end section 30 to be connected to the sill beam 10 on both the upper and lower sides, making the force transmission between the longitudinal beam end section 30 and the sill beam 10 more uniform in the vertical direction. This improves the bending and torsional stress of the sill beam 10 in the vertical direction and can further reduce the probability and degree of intrusion of the sill beam 10 and the longitudinal beam end section 30 into the passenger compartment, thereby improving safety.

[0095] like Figure 2 and Figure 4 As shown, according to some embodiments of this application, the vehicle chassis 100 further includes: a limiting beam 60, which is located inside the energy compartment b and limits the battery cells inside the energy compartment. The limiting beam 60 is disposed opposite to the crossbeam 20 in a second direction, and the limiting beam 60 is connected to the sill beam 10.

[0096] Specifically, see Figure 7 As shown, Figure 7 The middle h area is the connection area between the limiting beam 60 and the sill beam 10. The limiting beam 60 is installed inside the energy compartment b. The limiting beam 60 is connected to the sill beam 10 at both ends in the first direction. In the second direction, the limiting beam 60 is arranged opposite to the crossbeam 20. The limiting beam 60 separates the crossbeam 20 from the area in the energy compartment b where the battery cells are located. The limiting beam 60 can not only suppress the expansion of the battery cells, but also, when the connection section deforms (such as due to a high-speed collision), it can intrude into the gap between the limiting beam 60 and the crossbeam 20, thereby reducing the probability of the connection section intruding into the energy compartment b and causing damage to the battery cells, and further improving the safety of the vehicle chassis 100.

[0097] like Figure 9 and Figure 10 As shown, according to some embodiments of this application, the chassis 100 of the vehicle further includes a support block 50, which is disposed between the limiting beam 60 and the crossbeam 20 and connected to the sill beam 10.

[0098] Specifically, the support block 50 is positioned between the limiting beam 60 and the crossbeam 20 so that the collision energy borne by the crossbeam 20 can be transferred to the end region of the limiting beam 60 through the support block 50. This enriches the mechanical transmission path and provides support for the limiting beam 60 at its end, thereby further reducing the intrusion of the connecting section into the energy chamber b during a collision. In the first direction, the sill beam 10 can be connected to the support block 50 by fasteners, which can also improve the fixation stability of the support block 50 on the sill beam 10.

[0099] like Figure 9 As shown, according to some embodiments of this application, the support block 50 is connected to the limiting beam 60 and the crossbeam 20 at both ends in the second direction, respectively.

[0100] One end of the support block 50 in the second direction is connected to the crossbeam 20, and the other end of the support block 50 in the second direction is connected to the limiting beam 60. The support block 50 provides strong support between the limiting beam 60 and the crossbeam 20 in the second direction. The support block 50 is also connected to the sill beam 10, the crossbeam 20 and the limiting beam 60, which can further improve the connection strength and structural rigidity of the connecting section area, thereby improving the structural strength and stability of the vehicle chassis 100.

[0101] Combination Figure 9 and Figure 11 As shown, according to some embodiments of this application, the connector 40 further includes a second plate 42 extending along a first direction, the second plate 42 being located between the support block 50 and the crossbeam 20, and the second plate 42 being connected to the support pipe 50 and the crossbeam 20.

[0102] In other words, the second plate 42 is used to connect the support block 50 and the crossbeam 20, and the first plate 41 is used to connect the longitudinal beam end section 30, the crossbeam 20 and the sill beam 10. In the connecting section, the longitudinal beam end section 30, the sill beam 10, the crossbeam 20, the support block 50 and the limiting beam 60 are connected by the connecting piece 40. While overcoming material limitations and realizing the fastening connection of various different material parts, the structural strength of the connecting section is higher, there are more mechanical transmission paths between multiple beams, the transmission of collision energy is more uniform, the structural strength of the vehicle chassis 100 is higher, and the safety is higher.

[0103] Referring to the accompanying drawings, the chassis 100 of the vehicle according to an embodiment of this application comprises a connecting section consisting of a longitudinal beam end section 30, a crossbeam 20, a sill beam 10, a limiting beam 60, and a support block 50. The connecting member 40 includes a first plate 41 and a second plate 42. The first plate 41 is used to connect the crossbeam 20, the longitudinal beam end section 30, and the sill beam 10. The middle area of ​​the support block 50 is connected to the sill beam 10. One end of the support block 50 in the second direction is directly connected to the limiting beam 60, and the other end in the second direction is connected to the crossbeam 20 through the second plate 42. The longitudinal beam end section 30 is also connected to the crossbeam 20 through an overlapping arm 32, so as to make the structural strength of the connecting section area higher and the protection effect of the energy compartment b and the passenger compartment better.

[0104] like Figure 1 As shown, this application proposes a vehicle 200, including: the chassis 100 of the vehicle in the above embodiment.

[0105] The chassis 100 and other components and operation of the vehicle 200 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0106] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0107] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle chassis, characterized in that, include: Threshold beam (10); A crossbeam (20) is connected to the sill beam (10) at its end in the first direction, and an energy compartment is defined between the sill beam (10) and the crossbeam (20), the energy compartment being used to accommodate individual battery cells; The longitudinal beam end section (30) is located at the end of the energy cabin in the second direction; A connector (40) is disposed between the sill beam (10) and the crossbeam (20), and the end section (30) of the longitudinal beam and the sill beam (10) are connected to the connector (40) on both sides of the connector (40) in the first direction. The sill beam (10) and the crossbeam (20) are connected to the connector (40) on both sides of the connector (40) in the first direction. The first direction and the second direction have an angle between them.

2. The chassis of the vehicle according to claim 1, characterized in that, The longitudinal beam end section (30) includes: a body part (31), and the connector (40) includes a first plate (41). The first plate (41) has a first connecting part (411) arranged along the second direction and a second connecting part (412) arranged along a third direction. The body part (31) is connected to the first connecting part (411) and the second connecting part (412). The third direction has an angle with the first direction, and the second direction is different from the third direction.

3. The chassis of the vehicle according to claim 2, characterized in that, The longitudinal beam end section (30) also includes an overlapping arm (32) connected to the body part (31). The overlapping arm (32) is located on one side of the body part (31) in the second direction and extends toward the crossbeam (20). At least a portion of the overlapping arm (32) overlaps the threshold beam (10) and is connected to the threshold beam (10).

4. The chassis of the vehicle according to claim 3, characterized in that, At least a portion of the lap arm (32) is also lapped on the crossbeam (20) and connected to the crossbeam (20).

5. The chassis of the vehicle according to claim 3, characterized in that, The first connecting part (411) and the overlapping arm (32) are respectively located on both sides of the threshold beam (10) in the third direction.

6. The chassis of the vehicle according to any one of claims 1-5, characterized in that, Also includes: A limiting beam (60) is located inside the energy chamber and limits the battery cells inside the energy chamber. The limiting beam (60) and the crossbeam (20) are arranged opposite to each other in the second direction. The limiting beam (60) is connected to the threshold beam (10).

7. The chassis of the vehicle according to claim 6, characterized in that, Also includes: A support block (50) is disposed between the limiting beam (60) and the crossbeam (20) and is connected to the threshold beam (10).

8. The chassis of the vehicle according to claim 7, characterized in that, The support block (50) is connected to the limiting beam (60) and the crossbeam (20) at both ends in the second direction, respectively.

9. The chassis of the vehicle according to claim 8, characterized in that, The connector (40) further includes a second plate (42) extending along the first direction, the second plate (42) being located between the support block (50) and the crossbeam (20), and the second plate (42) being connected to the support block (50) and the crossbeam (20).

10. A vehicle, characterized in that, include: The chassis of the vehicle according to any one of claims 1-9.

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