Side pillar collision protection structure, vehicle body, and vehicle

Abstract

A side pillar collision protection structure (1), a vehicle body, and a vehicle (1000). The side pillar collision protection structure (1) comprises: a first beam, the first beam extending in a first direction; a plurality of first cross beams (40), the plurality of first cross beams (40) being arranged at intervals in the first direction, each first cross beam (40) extending in a second direction, end portions of the plurality of first cross beams (40) being respectively connected to the first beam, and an included angle being formed between the first direction and the second direction; and an energy-absorbing structural component, the energy-absorbing structural component being arranged on the first beam and being configured to crush and deform under a first set pressure, thereby increasing the energy absorption capacity of the first beam and reducing the stress of the first beam.

Description

Side pole impact protection structure, body and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number: 202311120750.8, application date: August 31, 2023 and application number: 202311166272.4, application date: September 8, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of vehicles, and in particular to a side pole impact protection structure, a vehicle body and a vehicle. Background Art

[0004] The vehicle's rocker beam is generally connected to the crossbeams in front and behind the seats. The load impacting the side of the vehicle is absorbed through the deformation of the rocker beam, and the remaining energy of the load is transferred to the other side of the vehicle body through the crossbeams in front and behind the seats. However, due to the simple structure of the rocker beam and its limited energy absorption capacity, the crossbeams in front and behind the seats are subject to a greater impact force.

[0005] Application Contents

[0006] In view of the above problems, the present application provides a side column impact protection structure, a vehicle body and a vehicle, which can improve the energy absorption capacity of the first beam and reduce the force on the first beam.

[0007] In a first aspect, the present application provides a side column impact protection structure, comprising: a first beam, the first beam extending along a first direction; a plurality of first cross beams, the plurality of first cross beams being spaced apart along the first direction, each first cross beam extending along a second direction, the ends of the plurality of first cross beams being respectively connected to the first beam, and the first direction and the second direction having an angle; an energy absorbing structural member, the energy absorbing structural member being provided on the first beam, the energy absorbing structural member being configured to collapse and deform after being subjected to a first set pressure.

[0008] In the technical solution of the embodiment of the present application, the side column impact protection structure is provided with an energy-absorbing structural member on the first beam. After the first beam is subjected to the impact force, the energy-absorbing structural member can bear part of the impact force, reduce the residual load of the impact force, reduce the impact force borne by the first beam and the first cross beam, and enhance the protection effect of the energy-absorbing structural member on the first beam and the first cross beam. At the same time, multiple first cross beams can jointly bear the residual load of the impact force, which can reduce the impact force borne by a single first cross beam. The energy-absorbing structural member and multiple first cross beams can disperse and absorb the impact force borne by the first beam, thereby enhancing the bending strength of the first beam.

[0009] According to some embodiments of the present application, the energy-absorbing structural member includes at least one first buffer cavity extending along the second direction. In the above technical solution, the first buffer cavity extending along the second direction can buffer the impact force exerted on the energy-absorbing structural member from the second direction, thereby reducing the force exerted on the first beam and the first crossbeam.

[0010] According to some embodiments of the present application, the cross-section of the energy-absorbing structural member is formed into a honeycomb shape, and the cross-section is perpendicular to the second direction. In the above technical solution, this cross-sectional design of the energy-absorbing structural member can enhance the energy-absorbing structural member's ability to withstand pressure in the second direction and also enhance the structural strength of the energy-absorbing structural member itself.

[0011] According to some embodiments of the present application, in the second direction, the ends of at least two of the first crossbeams are connected by side beams, and the side beams are fixed to the first beams. In the above technical solution, the side beams are provided to connect the at least two first crossbeams into one body, so that the force borne by the side beams from the first beams can be distributed to the at least two first crossbeams, so that the at least two first crossbeams are jointly subjected to the force, which can reduce the impact force borne by a single first crossbeam.

[0012] According to some embodiments of the present application, the side beam is configured to crush and deform upon being subjected to a second set pressure. In the above technical solution, after the side beam is crushed and deformed by the force, the other portion of the force can be blocked from being transmitted to the at least two first cross beams connected to the side beam, thereby reducing the force on the first cross beams. In addition, the crushing and deformation of the side beam can also increase the side beam's absorption of collision energy.

[0013] According to some embodiments of the present application, the side beam includes at least one second buffer cavity extending along the first direction. In the above technical solution, the second buffer cavity can buffer the force applied to the side beam, thereby reducing the force transmitted from the side beam to the plurality of first cross beams, thereby reducing the force applied to each first cross beam.

[0014] According to some embodiments of the present application, in the second direction, the end of the energy-absorbing structural member is connected to the side beam. In the above technical solution, the force transmitted from the first beam to the side beam can be absorbed by the energy-absorbing structural member, which can enhance the energy absorption effect of the energy-absorbing structural member while reducing the force on the side beam.

[0015] According to some embodiments of the present application, the energy-absorbing structural member is disposed through the first beam. In the above technical solution, the positional relationship between the energy-absorbing structural member and the first beam is designed such that at least a portion of the energy-absorbing structural member is located within the first beam. The energy-absorbing structural member can withstand a portion of the impact force perpendicular to the first direction. When the impact force reaches a first set pressure, the energy-absorbing structural member collapses and deforms, thereby reducing the load borne by the first beam.

[0016] According to some embodiments of the present application, the side column impact protection structure further includes a housing, wherein the housing defines a storage space for the battery cells. In the above technical solution, since the first beam is located on the side of the roof, the energy-absorbing structural members and side beams provided in the side column impact protection structure can disperse the impact force on the first beam, thereby increasing the bending strength of the first beam, reducing deformation of the first beam, preventing deformation of the first beam from intruding into the storage space, and thus strengthening protection for the battery cells.

[0017] According to some embodiments of the present application, the side column impact protection structure further includes an intermediate beam disposed within the storage space, the intermediate beam extending along the second direction, the intermediate beam disposed below the top cover of the storage body, and the intermediate beam secured to at least one of the first cross beams. In the above technical solution, by securing the intermediate beam to at least one of the first cross beams, the upper and lower force transmission paths can transmit force as a whole, thereby improving the overall load transfer capability, reducing the impact force borne by the first beam, and improving the bending resistance of the first beam.

[0018] According to some embodiments of the present application, the intermediate beam is fixed to one of the first cross beams via a plurality of fixing connectors. In the above technical solution, the intermediate beam and the first cross beams can form an integrated force transmission system, improving the overall load transfer capability. In addition, the intermediate beam and the first cross beams have multiple fixing points, making the fixed connection between the intermediate beam and the first cross beam more stable.

[0019] According to some embodiments of the present application, a portion of the energy-absorbing structural member is disposed directly opposite the middle beam in the second direction. In the above technical solution, the portion of the energy-absorbing structural member directly opposite the middle beam allows the portion of the energy-absorbing structural member to absorb the force applied to the middle beam, thereby enhancing the energy-absorbing capacity of the portion of the energy-absorbing structural member and reducing the pressure on the load transmitted by the lower force transmission path.

[0020] According to some embodiments of the present application, a portion of the energy-absorbing structural member is connected to the middle beam. In the above technical solution, the energy-absorbing structural member can be preferentially subjected to force and crushed and deformed. After fully absorbing energy, the remaining load is then transferred to the middle beam, effectively reducing the load borne by the middle beam and the first crossbeam, and alleviating the pressure on the upper and lower force transmission paths to transmit load.

[0021] According to some embodiments of the present application, the energy-absorbing structural member includes a first energy-absorbing member and a second energy-absorbing member, the first energy-absorbing member and the second energy-absorbing member being spaced apart in the vertical direction. The first energy-absorbing member is connected to the side beams, and the second energy-absorbing member is connected to the middle beam. Both the first energy-absorbing member and the second energy-absorbing member are configured to crush and deform upon receiving a first set pressure. In this technical solution, when the first beam is impacted, the first and second energy-absorbing members are preferentially subjected to the force and crush and deform. Both the first and second energy-absorbing members crush and deform axially, effectively absorbing energy and thereby reducing the load borne by the first crossbeam and the middle beam.

[0022] According to some embodiments of the present application, the first energy absorbing member and the second energy absorbing member are both disposed through the first beam. In the above technical solution, when the first beam is impacted, the first energy absorbing member and the second energy absorbing member are both axially crushed and deformed, which can fully absorb energy and reduce the stress on the first beam.

[0023] According to some embodiments of the present application, the first beam is a door sill beam, and a portion of the side wall of the compartment body is defined by the first beam. In the above technical solution, the first beam can be used as part of the compartment body, and some compartment body side beams can be omitted, thereby integrating the compartment body and the door sill beam into one. This ensures space for the battery unit, simplifies the overall structure of the side column impact protection structure, and reduces the cost of the side column impact protection structure parts.

[0024] On the second aspect, the present application also proposes a vehicle body having the side pole impact protection structure of the above embodiment.

[0025] In a third aspect, the present application also proposes a vehicle having the vehicle body in the above embodiment.

[0026] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0028] FIG1 is a structural diagram of the top cover of the side column impact protection structure according to an embodiment of the present application.

[0029] Figure 2 is a structural diagram of the lower part of the top cover of the side column impact protection structure according to an embodiment of the present application.

[0030] FIG3 is a structural diagram of the top cover above the side column impact protection structure after the first beam is hidden according to an embodiment of the present application.

[0031] FIG4 is an enlarged view of the circled point A in FIG3 .

[0032] FIG5 is a schematic diagram of a vehicle according to an embodiment of the present application.

[0033] The figure numbers in the specific implementation manner are as follows: 1. Side column impact protection structure; 10. Top cover; 21. First part; 22. Second part; 30a. First buffer cavity; 31. First energy absorbing member; 32. Second energy absorbing member; 40. First cross beam; 50. Side beam; 50a. Second buffer cavity; 60. Middle beam; 70. Fixed connecting member; 1000. Vehicle. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0037] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0039] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0040] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0041] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0042] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0043] In related art, vehicles are typically equipped with battery cells for power supply. These cells can be housed within a compartment and form a chemical chamber. A threshold beam is typically positioned at the edge of the chemical chamber. This beam is aligned with the vehicle's direction of travel and is located on the side of the vehicle. The threshold beam is typically connected to a crossbar in front of and behind the seats, which is aligned with the vehicle's width. When the vehicle is hit from the side, the threshold beam is subjected to force and deforms to absorb energy. The remaining energy from the load is transferred to the other side of the vehicle through the crossbar in front of and behind the seats, reducing damage to the battery cells from the impact and improving their protection.

[0044] However, due to the simple structure of the sill beam and its limited energy absorption capacity, the sill beam and the cross beams in front and behind the seats are subjected to a large impact force, causing the sill beam and the cross beams in front and behind the seats to easily collapse and deform, greatly affecting the safety performance of the vehicle.

[0045] To address at least one of the aforementioned technical issues, embodiments of the present application provide a side column impact protection structure comprising: a first beam, multiple first cross beams, and an energy-absorbing structural member. The first beam extends along a first direction; the multiple first cross beams are spaced apart along the first direction, each extending along a second direction, with the ends of the multiple first cross beams connected to the first beam, forming an angle between the first and second directions; and the energy-absorbing structural member is disposed on the first beam and is configured to collapse and deform upon exposure to a first predetermined pressure.

[0046] By arranging an energy-absorbing structural member on the first beam, the energy-absorbing structural member can bear part of the impact force after the first beam is hit by a side collision, thereby reducing the load of the remaining impact force borne by the first beam, improving the protection effect of the energy-absorbing structural member on the first beam, and improving the energy absorption capacity of the first beam and reducing the force on the first beam.

[0047] Furthermore, in order to further reduce the force on the first beam, in an embodiment of the present application, multiple first cross beams are connected to the first beam so that the multiple first cross beams can jointly bear the remaining load of the impact force.

[0048] In short, in the context of increasing attention to vehicle safety performance, the side column impact protection structure of the embodiment of the present application can enhance the energy absorption capacity of the first beam, reduce the force on the first beam, and ensure vehicle safety performance.

[0049] The side column impact protection structure disclosed in the embodiment of the present application can be applied to vehicles, and the vehicles can be fuel vehicles, gas vehicles or new energy vehicles. The new energy vehicles can be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc. At the same time, the side column impact protection structure disclosed in the embodiment of the present application can be set at any position of the vehicle according to needs. For example, the side column impact protection structure disclosed in the embodiment of the present application can be set at the top of the vehicle, and the side column impact protection structure there can reduce the force on the top of the vehicle during a side collision. The side column impact protection structure disclosed in the embodiment of the present application can also be applied to the bottom of the vehicle, and the side column impact protection structure there can reduce the force on the bottom of the vehicle during a side collision. When the battery assembly is set at the bottom of the vehicle, the side column impact protection structure can reduce the damage to the chemical chamber caused by the impact force of the side collision, and improve the protection effect on the chemical chamber. The location where the side column impact protection structure can be set is not limited here.

[0050] For the convenience of description, the following embodiments are described by taking a side pole impact protection structure 1, a vehicle body and a vehicle 1000 according to an embodiment of the present application as an example.

[0051] The side pole impact protection structure 1 according to an embodiment of the present application will be described below with reference to FIG. 1 to FIG. 4 .

[0052] As shown in Figure 1, the side pole impact protection structure 1 according to the present application comprises: a first beam, multiple first cross beams 40, and an energy-absorbing structural member. The first beam extends along a first direction; the multiple first cross beams 40 are spaced apart along the first direction, each extending along a second direction, with the ends of the multiple first cross beams 40 connected to the first beam, forming an angle between the first direction and the second direction; and the energy-absorbing structural member is provided on the first beam and is configured to collapse and deform upon exposure to a first predetermined pressure.

[0053] Because the energy-absorbing structural member and the first crossbeam 40 are both connected to the first beam, after the first beam is subjected to an impact force, part of the impact force can be absorbed by the energy-absorbing structural member. The energy-absorbing structural member collapses after being subjected to a certain pressure, thereby reducing the impact force borne by the first beam and the first crossbeam 40. The remaining impact force can be dispersed to the second direction by the first crossbeam 40 extending along the second direction and shared by multiple first crossbeams 40, thereby reducing the force borne by a single first crossbeam 40. Specifically, after the energy-absorbing structural member is subjected to the first set pressure and is crushed and deformed, the remaining load of the impact force is borne by the first beam and the first crossbeam 40. The provision of the energy-absorbing structural member can reduce the force borne by the first beam and the first crossbeam 40 and enhance the bending resistance of the first beam and the first crossbeam 40. The first beam extending in the first direction can be parallel to the first direction or can form a certain angle with the first direction. The first crossbeam 40 extending in the second direction can be parallel to the second direction or can form a certain angle with the second direction.

[0054] In some embodiments, the energy-absorbing structural member may extend along a second direction. The impact force applied to the first beam is generally perpendicular to the extension direction of the first beam, that is, the impact force is generally perpendicular to the first direction. The energy-absorbing structural member is designed to extend in the second direction, with the second direction forming an angle with the first direction, so that the energy-absorbing structural member can withstand a portion of the impact force perpendicular to the first direction. A portion of the impact force is borne by the energy-absorbing structural member. When the impact force applied to the energy-absorbing structural member reaches a first set pressure, the energy-absorbing structural member is crushed and deformed. When the energy-absorbing structural member is subjected to an impact force from the second direction, the energy-absorbing structural member can be deformed along the second direction after being crushed. At this time, the energy-absorbing structural member can fully absorb energy, and the residual load of the impact force is smaller, so that the energy-absorbing structural member has a better protection effect on the first beam and the first crossbeam 40. Alternatively, when the energy-absorbing structural member is subjected to an impact force from the first direction or other directions, at least part of the energy-absorbing structural member can be deformed along the first direction or other directions to reduce the force on the first beam and the first crossbeam 40. That is, when the setting direction of the energy-absorbing structural member is consistent with the force direction, the energy-absorbing structural member can absorb energy more fully and reduce the force on the first beam more effectively.

[0055] According to the side column impact protection structure 1 of the present application, an energy-absorbing structural member is provided on the first beam. After the first beam is subjected to an impact force, the energy-absorbing structural member can bear part of the impact force, reduce the residual load of the impact force, reduce the impact force borne by the first beam and the first crossbeam 40, and improve the protection effect of the energy-absorbing structural member on the first beam and the first crossbeam 40. At the same time, multiple first crossbeams 40 can jointly bear the residual load of the impact force, which can reduce the impact force borne by a single first crossbeam 40. The energy-absorbing structural member and multiple first crossbeams 40 can disperse and absorb the impact force borne by the first beam, thereby improving the bending strength of the first beam.

[0056] In some embodiments, the first cross beam 40 may be a cross beam at a seat, and a plurality of first cross beams 40 may be distributed in front of the seat and / or behind the seat.

[0057] In some embodiments, the first direction is orthogonal to the second direction, and the setting direction of the energy-absorbing structural member and the setting direction of the multiple first beams 40 are consistent with the force direction of the first beam, so that the energy-absorbing structural member can fully absorb energy, and the multiple first beams 40 are fully stressed, effectively reducing the force on the first beam.

[0058] Currently, improvements are typically made by increasing the material strength or thickness of the sill beams and the crossbeams in front and behind the seats. However, these methods are costly, heavy, and inconvenient for overall vehicle lightweighting. By connecting multiple first crossbeams to the first beam, they can collectively bear the residual impact force, reducing the impact force borne by a single first crossbeam and ultimately reducing the weight and cost of the side column impact protection structure.

[0059] According to some embodiments of the present application, as shown in Figures 1-4 , the energy-absorbing structural member includes at least one first buffer cavity 30a extending along the second direction. Specifically, the first buffer cavity 30a extending along the second direction can buffer the energy-absorbing structural member from impact forces in the second direction. Multiple first buffer cavities 30a can be configured to enhance the energy-absorbing structural member's ability to withstand forces in the second direction, enabling the energy-absorbing structural member to more fully absorb energy and crush and deform. Alternatively, the energy-absorbing structural member can further include multiple buffer cavities extending along the first direction or other directions, thereby absorbing impact forces in the first direction or other directions, significantly reducing the forces acting on the first beam and first crossbeam 40.

[0060] According to some embodiments of the present application, the cross-section of the energy-absorbing structural member is formed into a honeycomb shape, with the cross-section being perpendicular to the second direction. In some embodiments, the honeycomb shape of the cross-section of the energy-absorbing structural member perpendicular to the second direction can enhance the energy-absorbing structural member's ability to withstand pressure in the second direction and can also enhance the structural strength of the energy-absorbing structural member itself. Alternatively, the honeycomb shape of the cross-section of the energy-absorbing structural member perpendicular to other directions can also enhance the energy-absorbing structural member's ability to withstand pressure in other directions.

[0061] According to some embodiments of the present application, as shown in Figures 1-4, in the second direction, the ends of at least two first crossbeams 40 are connected by side beams 50, and the side beams 50 are fixed to the first beam. Specifically, at least two first crossbeams 40 are connected to the first beam via the side beams 50. The side beams 50 are provided to connect the at least two first crossbeams 40 into one body. This can disperse the force borne by the side beams 50 from the first beam to the at least two first crossbeams 40, so that the at least two first crossbeams 40 are jointly subjected to the force, thereby reducing the impact force borne by a single first crossbeam 40. In some embodiments, after the first beam is subjected to force, the force is divided into two parts, wherein the energy-absorbing structural member at the first beam absorbs part of the force, and the remaining force of the part is borne by the first beam, while the other part of the force is transmitted to the side beams 50, and the side beams 50 can disperse the other part of the force to the at least two first crossbeams 40. Providing the energy-absorbing structural member and the side beams 50 at the same time can further disperse the impact force borne by the first beam and improve the bending strength of the first beam.

[0062] In some embodiments, there are multiple first cross beams 40, and two adjacent first cross beams 40 are connected to one side beam 50, while the remaining first cross beams 40 are directly connected to the first beam. In other embodiments, there are multiple first cross beams 40 and they are connected to the same side beam 50.

[0063] According to some embodiments of the present application, the side beam 50 is configured to crush and deform upon being subjected to a second set pressure. Specifically, after the side beam 50 is crushed and deformed by the force, the other portion of the force can be blocked from being transmitted to the at least two first crossbeams 40 connected to the side beam 50, thereby reducing the force applied to the first crossbeams 40. Furthermore, the crushing and deformation of the side beam 50 can also increase the side beam 50's absorption of collision energy. It is understood that the second set pressure can be the same as or different from the first set pressure, and can be tested or calculated based on the specific structure of the side beam 50 and the energy-absorbing structural component. The magnitude of the second set pressure and the first set pressure is not limited herein.

[0064] According to some embodiments of the present application, as shown in Figures 1-4, the side beam 50 includes at least one second buffer cavity 50a extending along a first direction. Specifically, the second buffer cavity 50a can buffer the force applied to the side beam 50, thereby reducing the force transmitted by the side beam 50 to the multiple first cross beams 40, thereby reducing the force applied to each first cross beam 40. The second buffer cavity 50a is provided to enable the side beam 50 to fully absorb energy and crush and deform, thereby reducing the force applied to the first beam and the first cross beam 40. Alternatively, the side beam 50 may further include multiple buffer cavities extending along other directions to enhance the side beam 50's ability to withstand force and further reduce the force applied to the first beam.

[0065] In some embodiments, the side beam 50 extends in the same direction as the first beam. The second buffer cavity 50a of the side beam 50 can absorb energy and crush and deform when the first beam is subjected to force, thereby increasing the amount of collision energy absorbed by the side beam 50.

[0066] According to some embodiments of the present application, as shown in Figures 1 to 4, in the second direction, the end of the energy-absorbing structural member is connected to the side beam 50, and the force transmitted from the first beam to the side beam 50 can be absorbed by the energy-absorbing structural member, which can enhance the energy absorption effect of the energy-absorbing structural member while reducing the force on the side beam 50.

[0067] In some embodiments, the energy absorbing structural member is constructed as at least one and is connected to the side beam 50 , so that the energy absorbing structural member can absorb the force transmitted to the first beam and the side beam 50 , thereby reducing the force borne by the first beam and the side beam 50 .

[0068] In some embodiments, one side surface of the side beam 50 in the second direction is connected to at least two first cross beams 40 by welding, and the other side surface of the side beam 50 in the second direction is connected to the first beam by fasteners such as screws. The gap-free connection between the first beam, the side beam 50, and the multiple first cross beams 40 ensures that the force transmission path in a side impact is not interrupted, ensuring effective force transmission and, therefore, the energy absorption effect of the energy-absorbing structural member.

[0069] In some embodiments, the other side surface of the side beam 50 in the second direction is connected to the first beam by a fastener.

[0070] According to some embodiments of the present application, as shown in Figures 1 and 2, the energy-absorbing structural member is passed through the first beam so that at least part of the energy-absorbing structural member is located inside the first beam. In some embodiments, the energy-absorbing structural member extends in the second direction. When the first beam is subjected to an impact force perpendicular to the first direction, the energy-absorbing structural member bears a portion of the impact force perpendicular to the first direction. When the energy-absorbing structural member is subjected to the impact force reaching a first set pressure, it is crushed and deformed to reduce the load borne by the first beam.

[0071] In current vehicles, the inner door sill beam is arranged between the outer door sill beam and the chemical chamber and is connected to the fixed bracket of the chemical chamber. Since there is a gap between the inner door sill beam and the outer door sill beam, and the gap is located on the force transmission path of the side column impact, the gap causes a gap in the force transmission structure of the side column impact, which will cause the deformation and intrusion of the inner and outer door sill beams to increase, and the protection performance of the battery cell is poor.

[0072] According to some embodiments of the present application, the side column impact protection structure 1 further includes a bin body (not shown), which is provided with a storage space for holding battery cells. In some embodiments, the bin body includes a box body and a top cover 10 suitable for cooperating with the box body. The box body and the top cover 10 cooperate to define a storage space suitable for holding battery cells. In this case, the battery cells can be placed in the box body or hoisted on the top cover 10, which is not limited here. In some embodiments, the top cover 10 can be the floor of the vehicle body, in which case the side column impact protection structure 1 is located as a whole at the bottom of the vehicle, or the top cover 10 can be constructed as a cooling plate suitable for heat exchange with the battery cells, which is not limited here. The first beam is generally provided on the side of the top cover 10. The energy-absorbing structural members and the side beams 50 provided in the side column impact protection structure 1 can disperse the impact force borne by the first beam, improve the bending strength of the first beam, reduce the deformation of the first beam, avoid the deformation of the first beam and intrude into the storage space, and strengthen the protection of the battery cells.

[0073] In some embodiments, the battery unit is a battery cell.

[0074] According to some embodiments of the present application, as shown in FIG2 , the side pole impact protection structure 1 further includes a center beam 60 disposed within the storage space. The center beam 60 extends in the second direction and is disposed below the roof 10 of the housing. The center beam 60 is secured to at least one first cross beam 40. Specifically, both the first cross beam 40 and the center beam 60 extend in the second direction. In some embodiments, the side beams 50 are located above the roof 10 in the height direction of the vehicle 1000 and connected to the first beams. The side beams 50 and the plurality of first cross beams 40 form an upper force transmission path for the first beam above the roof 10. The box body of the housing is located below the roof 10 in the height direction of the vehicle 1000. The center beam 60 is located within the storage space and can be connected to the first beams to form a lower force transmission path for the first beam below the roof 10. By securing the center beam 60 to the at least one first cross beam 40, the upper and lower force transmission paths can transmit force together, improving the overall load transfer capability, reducing the impact force borne by the first beam, and improving the bending resistance of the first beam.

[0075] According to some embodiments of the present application, as shown in Figure 2, the middle beam 60 is fixed to one of the first cross beams 40 through multiple fixed connectors 70 to form an overall force transmission, thereby improving the overall load transmission capability, and the middle beam 60 and the first cross beam 40 have more fixed points, making the fixed connection between the middle beam 60 and the first cross beam 40 more stable.

[0076] According to some embodiments of the present application, as shown in FIG2 , a portion of the energy-absorbing structural member is disposed opposite the middle beam 60 in the second direction. Specifically, the energy-absorbing structural member and the middle beam 60 both extend along the second direction, so that a portion of the energy-absorbing structural member is opposite the middle beam 60. This portion of the energy-absorbing structural member can absorb some of the impact force, thereby reducing the force applied to the middle beam 60 and alleviating the pressure on the load transmitted by the force transmission path below.

[0077] According to some embodiments of the present application, as shown in Figure 2, a portion of the energy-absorbing structural member is connected to the middle beam 60. In some embodiments, the energy-absorbing structural member can be preferentially subjected to force, resulting in crushing and deformation. After fully absorbing energy, the remaining load is then transferred to the middle beam 60, effectively reducing the load borne by the middle beam 60 and the first crossbeam 40, alleviating the pressure on the upper and lower force transmission paths. In some embodiments, the energy-absorbing structural member is aligned with and connected to the end of the middle beam 60 facing the first beam, thereby fixedly connecting the middle beam 60 to the first beam and forming a force transmission path below the roof 10. This arrangement can also strengthen the structural strength of the middle beam 60 and enhance its ability to withstand pressure.

[0078] According to some embodiments of the present application, as shown in Figures 1-4, the energy-absorbing structural member includes a first energy-absorbing member 31 and a second energy-absorbing member 32. The first energy-absorbing member 31 and the second energy-absorbing member 32 are spaced apart in the vertical direction. The first energy-absorbing member 31 is connected to the side beam 50, and the second energy-absorbing member 32 is connected to the middle beam 60. The first energy-absorbing member 31 and the second energy-absorbing member 32 are both configured to crush and deform upon receiving a first set pressure. In some embodiments, the first energy-absorbing member 31 and the second energy-absorbing member 32 are both disposed throughout the first beam. The first energy-absorbing member 31 is connected to the side beam 50 and is axially parallel to and directly opposite the first cross beam 40. The second energy-absorbing member 32 is axially parallel to and directly opposite the middle beam 60. When the first beam is impacted, the first energy-absorbing member 31 and the second energy-absorbing member 32 are preferentially subjected to the force and crush and deform. The first energy-absorbing member 31 and the second energy-absorbing member 32 are both axially crushed and deformed, which can fully absorb energy and thereby reduce the load borne by the first cross beam 40 and the middle beam 60.

[0079] In some embodiments, the first energy absorber 31 is connected to the side beam 50 and faces the end of one of the first cross beams 40. The first energy absorber 31 is formed with two first buffer cavities 30a. The arrangement direction of the two first buffer cavities 30a is the same as the extension direction of the side beam 50 and the first beam, and each first buffer cavity 30a extends along the second direction, which can enhance the ability of the first energy absorber 31 to withstand the force in the second direction, enable the energy absorption structure to absorb energy more fully and crush and deform, and reduce the force on the side beam 50 and the first beam.

[0080] In some embodiments, the second energy absorber 32 faces and is connected to the end of the middle beam 60. The second energy absorber 32 is formed with two first buffer cavities 30a. The two first buffer cavities 30a are arranged in sequence in the direction away from the roof cover 10, and each first buffer cavity 30a extends along the second direction, which can enhance the ability of the first energy absorber 31 to withstand the force in the second direction, enable the energy absorption structure to absorb energy more fully and crush and deform, and reduce the force on the middle beam 60 and the first beam.

[0081] In some embodiments, there are multiple first cross beams 40 all connected to the side beam 50, and one first energy absorber 31 is arranged inside each first cross beam 40.

[0082] In some embodiments, the cross-sections of the first energy absorber 31 and the second energy absorber 32 in the first direction can be closed roll-formed cross-sections.

[0083] In some embodiments, the cross-sections of the first energy absorber 31 and the second energy absorber 32 in the first direction can be in the shape of a Chinese character 'Ri' (日), 'Kou' (口), 'Mu' (目), 'Tian' (田), etc., as long as the structural strength is ensured.

[0084] In some embodiments, the first energy absorber 31 and the second energy absorber 32 can be made of energy absorption materials such as steel, aluminum alloy profiles, honeycomb aluminum, composite materials, etc., as long as the energy absorption effect is ensured.

[0085] According to some embodiments of the present application, as shown in FIGS. 1-4, both the first energy absorber 31 and the second energy absorber 32 are disposed through the first beam. In some embodiments, the first energy absorber 31 is embedded in the upper part of the first beam in the vehicle height direction 1000 and is axially parallel and facing the first cross beam 40, and the second energy absorber 32 is embedded in the lower part of the first beam in the height direction and is axially parallel and facing the middle beam 60. When the first beam is impacted, the first energy absorber 31 and the second energy absorber 32 are preferentially stressed and undergo crushing deformation, and both the first energy absorber 31 and the second energy absorber 32 undergo axial crushing deformation, which can fully absorb energy and reduce the force on the first beam.

[0086] In some embodiments, the first beam includes a first portion 21 and a second portion 22 arranged in parallel, wherein the first portion 21 is connected to the side beam 50, the first energy absorbing member 31 is sequentially passed through the first portion 21, the side beam 50 and a first cross beam 40, the second portion 22 is opposite to the middle beam 60 in the second direction, and the second energy absorbing member 32 is sequentially passed through the second portion 22 and the middle beam 60.

[0087] In current vehicles, the inner door sill beam is arranged between the outer door sill beam and the chemical chamber and is connected to the fixed bracket of the chemical chamber. The inner door sill beam will occupy the space of the chemical chamber, resulting in a reduction in the space available for battery cell layout.

[0088] According to some embodiments of the present application, the first beam is a threshold beam, and a portion of the side wall of the warehouse body is defined by the first beam. In some embodiments, the first beam can be used as a portion of the warehouse body, and some warehouse body side beams can be omitted, thereby combining the warehouse body and the threshold beam into one, ensuring space for the arrangement of battery units, simplifying the overall structure of the side column impact protection structure 1, and reducing the parts cost of the side column impact protection structure 1.

[0089] In some embodiments of the present application, as shown in Figures 1-4, a side pole impact protection structure 1 includes a roof 10, a first beam, two first cross beams 40, side beams 50, a center beam 60, and energy-absorbing structural members. Specifically, a first beam extending in the first direction is disposed on one side of the roof 10 in the second direction. The side beams 50 are located above the roof 10 and extend in the first direction. The two first cross beams 40 are also located above the roof 10 and extend in the second direction. The center beam 60 is located below the roof 10 and extends in the first direction. The energy-absorbing structural members include a first energy absorber 31 and a second energy absorber 32 extending in the second direction. The first direction is orthogonal to the second direction. The first beam includes a first portion 21 and a second portion 22 that are parallel and respectively arranged on the upper and lower sides of the top cover 10. The first portion 21 is connected to one side surface of the side beam 50 in the second direction, and the other side surface of the side beam 50 in the second direction is welded to the ends of the two first cross beams 40 located on the same side in the second direction. The first energy absorbing member 31 is passed through the first portion 21 and is connected to the side beam 50 and is opposite to one of the first cross beams 40; the second portion 22 is opposite to the middle beam 60 in the second direction, the second energy absorbing member 32 is passed through the second portion 22 and is connected to the end of the middle beam 60 opposite to each other, and the middle beam 60 is fixed to the first cross beam 40 provided with the first energy absorbing member 31 by multiple fixing connectors 70.

[0090] When the first beam is subjected to an impact force, the impact force is dispersed to the upper side and the lower side of the top cover 10 by the first part 21 and the second part 22 located on the upper and lower sides of the top cover 10 respectively. The impact force received by the first part 21 is absorbed by the first energy absorbing member 31. After the first energy absorbing member 31 is crushed, the remaining force is transmitted to the side beam 50. After the side beam 50 absorbs the force until it is crushed, the remaining force is borne by the two first cross beams 40 respectively; the impact force received by the second part 22 is absorbed by the second energy absorbing member 32. After the second energy absorbing member 32 is crushed, the remaining force is borne by the two first cross beams 40 respectively; and at the same time, since the middle beam 60 is fixedly connected to a first cross beam 40, the middle beam 60 can transmit the pressure borne by each other with the first cross beam 40, so that the upper and lower sides of the top cover 10 have better load transmission capabilities, which can effectively reduce the impact force borne by the first beam, reduce the force on the first beam, and improve the bending resistance of the first beam.

[0091] The vehicle body according to the present application is briefly described below.

[0092] The vehicle body according to the present application includes the side pole impact protection structure 1 described in any one of the above embodiments. Since the vehicle body according to the present application is provided with the side pole impact protection structure 1 of the above embodiments, the vehicle body has better bending resistance and higher safety performance.

[0093] The following briefly describes the vehicle 1000 according to the present application.

[0094] As shown in FIG5 , the vehicle 1000 according to the present application includes the vehicle body described in the above embodiment. Since the vehicle 1000 according to the present application is provided with the vehicle body of the above embodiment, the vehicle 1000 has better safety performance.

[0095] The vehicle 1000 of the present application can be a fuel-powered vehicle, a gas-powered vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle. The interior of the vehicle 1000 is provided with a floor. The floor can be located within the vehicle 1000 and can support interior structures such as seats and battery units. In this case, at least a portion of the floor can be configured as a roof 10 of the vehicle body.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0097] While embodiments of the present application have been shown and described above, changes, modifications, substitutions, and variations may be made to the embodiments described above.

Claims

1. A side column collision protection structure, wherein: include: a first beam extending along a first direction; A plurality of first cross beams, wherein the plurality of first cross beams are arranged at intervals along the first direction, each of the first cross beams extends along the second direction, ends of the plurality of first cross beams are respectively connected to the first beams, and the first direction and the second direction have an angle; An energy absorbing structural member is provided on the first beam, and is configured to be crushed and deformed after being subjected to a first set pressure.

2. The side pole impact protection structure according to claim 1, wherein: The energy absorbing structural member includes at least one first buffer cavity extending along the second direction.

3. The side pole impact protection structure according to claim 1, wherein: The cross section of the energy absorbing structural member is formed in a honeycomb shape, and the cross section is perpendicular to the second direction.

4. The side pole impact protection structure according to any one of claims 1 to 3, wherein: In the second direction, ends of at least two of the first beams are connected by side beams, and the side beams are fixed to the first beams.

5. The side pole impact protection structure according to claim 4, wherein: The side beam is configured to be crushed and deformed after being subjected to a second set pressure.

6. The side pole impact protection structure according to claim 5, wherein: The side beam includes at least one second buffer cavity extending along the first direction.

7. The side pole impact protection structure according to any one of claims 4 to 6, wherein: In the second direction, the end of the energy absorbing structural member is connected to the side beam.

8. The side pole impact protection structure according to claim 7, wherein: The energy absorbing structural member is disposed through the first beam.

9. The side pole impact protection structure according to any one of claims 4 to 8, wherein: Also includes: A storage body is provided with a storage space for storing battery cells.

10. The side pole impact protection structure according to claim 9, wherein: The side column impact protection structure also includes a middle beam arranged in the containing space, the middle beam extends along the second direction, the middle beam is arranged below the top cover of the warehouse body, and the middle beam is fixed to at least one of the first cross beams.

11. The side pole impact protection structure according to claim 10, wherein: The intermediate beam is fixed to one of the first cross beams via a plurality of fixing connectors.

12. The side pole impact protection structure according to claim 10, wherein: In the second direction, a portion of the energy absorbing structural member is disposed opposite to the middle beam.

13. The side pole impact protection structure according to claim 12, wherein: A portion of the energy absorbing structural member is connected to the middle beam.

14. The side pole impact protection structure according to claim 13, wherein: The energy absorbing structural member includes a first energy absorbing member and a second energy absorbing member, the first energy absorbing member and the second energy absorbing member are arranged at intervals in the up and down directions, the first energy absorbing member is connected to the side beam, and the second energy absorbing member is connected to the middle beam, and the first energy absorbing member and the second energy absorbing member are both configured to collapse and deform after receiving a first set pressure.

15. The side pole impact protection structure according to claim 14, wherein: The first energy absorbing member and the second energy absorbing member are both disposed through the first beam.

16. The side pole impact protection structure according to claim 9, wherein: The first beam is a threshold beam, and a portion of the side wall of the warehouse body is defined by the first beam.

17. A vehicle body, wherein: It comprises a side pole impact protection structure according to any one of claims 1-16.

18. A vehicle, wherein: Comprising a vehicle body according to claim 17.

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