Door sill beam, underbody, body structure and vehicle

Abstract

This application discloses a sill beam for a lower vehicle body, a lower vehicle body, a vehicle body structure, and a vehicle. The sill beam is located on the outer side of the battery assembly of the lower vehicle body in the width direction. The sill beam has two opposing sides in the width direction, and a portion of one side of the sill beam is recessed towards the other side to form a clearance groove. The clearance groove is adapted to be arranged opposite to at least a portion of the battery assembly. In the technical solution of this application embodiment, by providing a clearance groove on one side of the sill beam, the clearance space between the sill beam and the battery assembly is increased, thus avoiding the battery assembly during a side pillar collision. This reduces the probability of the sill beam and battery assembly being squeezed during a side pillar collision. Simultaneously, it improves the space utilization rate in the width direction of the sill beam, which is beneficial for improving the battery arrangement efficiency in the width direction of the sill beam and can increase the driving range. Furthermore, the clearance groove is simple to set and easy to manufacture, thus facilitating its widespread use.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more specifically, to a sill beam for a lower body, a lower body, a body structure, and a vehicle. Background Technology

[0002] Battery-vehicle integration technology, which integrates the battery pack and chassis, has become a major research area for improving efficiency and reducing costs. However, in related technologies, the vehicle's door sills and battery housing are separate components. Considering safety clearances, this reduces the efficiency of battery placement in the vehicle's Y-axis, affecting the overall driving range. Summary of the Invention

[0003] In view of the above problems, this application provides a sill beam for the lower body, a lower body, a body structure, and a vehicle, which can improve the utilization rate in the Y direction and increase the vehicle's driving range.

[0004] In a first aspect, this application provides a sill beam for a lower body, the sill beam having a length direction, a width direction and a height direction, the sill beam being located outside the battery assembly of the lower body in the width direction, the sill beam having two oppositely arranged sides in the width direction, a portion of one side of the sill beam being recessed towards the other side to form an avoidance groove, the avoidance groove being adapted to be arranged opposite to at least a portion of the battery assembly.

[0005] In the technical solution of this application embodiment, by providing an avoidance groove on one side of the sill beam, the avoidance space between the sill beam and the battery assembly is increased, so as to avoid the battery assembly when the side pillar hits, thereby reducing the probability of the sill beam and the battery assembly being squeezed when the side pillar hits, and improving the space utilization rate in the width direction of the sill beam, which is conducive to improving the arrangement efficiency of the battery in the width direction of the sill beam and can improve the driving range; in addition, the avoidance groove is simple to set and easy to process and manufacture, thus facilitating its widespread use.

[0006] In some embodiments, the groove wall of the avoidance groove is provided with an avoidance hole.

[0007] In the above technical solution, by setting the avoidance hole, when the side pillar of the vehicle is in the event of a collision, the sill beam moves towards the battery, and the battery cooling plate current collector can extend into the avoidance groove. Even if the amount of movement is too large, part of the battery cooling plate current collector can pass through the avoidance hole, further reducing the probability of the current collector being directly squeezed and damaged, without increasing the distance between the sill beam and the battery assembly. This further improves the battery arrangement efficiency in the width direction of the lower body, thereby increasing the driving range.

[0008] In some embodiments, the clearance holes include a plurality of holes, which are spaced apart along the length of the sill beam.

[0009] In the above technical solution, when the vehicle is in a side pole collision, the battery cooling plate current collector can extend into the clearance groove, and the diversion part can be provided with clearance holes, which further reduces the probability of the current collector being directly squeezed and damaged, and improves the reliability of the vehicle; and the multiple clearance holes are arranged at intervals, which can avoid the excessive reduction of the structural strength of the sill beam itself to a certain extent, and improve the stability of the entire sill beam.

[0010] In some embodiments, there is one clearance hole, and the clearance hole extends along the length direction of the sill beam.

[0011] In the above technical solution, by setting a clearance hole extending along the length of the sill beam, the clearance hole can correspond to multiple protruding diversion parts on the battery cooling plate current collector. In the event of a side pole collision with the vehicle, the battery cooling plate current collector can extend into the clearance groove, and the diversion parts can pass through the clearance hole, further reducing the probability of the current collector being directly crushed and damaged, and improving the reliability of the vehicle. The setting of a single clearance hole facilitates the manufacturing and forming of the sill beam, and also facilitates the correspondence between the clearance hole and multiple diversion parts. To a certain extent, it avoids the misalignment of the clearance hole and the diversion parts caused by manufacturing errors, assembly errors, etc., and improves manufacturing efficiency and assembly efficiency.

[0012] In some embodiments, the clearance groove includes a bottom wall and a first inner sidewall and a second inner sidewall arranged opposite to each other, wherein the first inner sidewall and the second inner sidewall extend obliquely toward each other in a direction close to the bottom wall.

[0013] In the above technical solution, the cross-section of the clearance groove can correspond to the shape of the current collector of the battery cooling plate, so that the clearance groove can serve as the clearance area of ​​the current collector, and under the effect of clearance, the strength and stability of the sill beam itself can be improved as much as possible.

[0014] In some embodiments, in the height direction of the sill beam, the opposite two side surfaces of the sill beam each have a connecting surface, and the two connecting surfaces are used to abut against the cover and bottom plate of the lower body.

[0015] In the above technical solution, the sill beam directly abuts against the cover plate and the bottom plate through the connecting surface of the sill beam. The sill beam can make full use of its width dimension to achieve a highly efficient arrangement of the installation and sealing interfaces related to the lower body, so that the sill beam integrates the functions of the traditional vehicle sill beam and the battery frame.

[0016] In some embodiments, the clearance groove corresponds to the positions of the two connecting surfaces of the sill beam.

[0017] In the above technical solution, the space of the battery assembly is made to avoid overlapping with the space of the cover and bottom plate assembly in the width direction of the sill beam, thereby making full use of the width direction of the sill beam.

[0018] In some embodiments, in the width direction of the sill beam, the side of the sill beam opposite to the clearance groove has an inclined sidewall and a connecting portion, the connecting portion being adapted to connect to the upper vehicle body, one end of the inclined sidewall being connected to the connecting portion, and the other end of the inclined sidewall extending obliquely away from the connecting portion along the width direction of the sill beam, the inclined sidewall having a mounting position for installing pipes for the lower vehicle body.

[0019] In the above technical solution, by setting an inclined sidewall, the pipeline can be arranged within the width range of the sill beam. There is no need to increase the space from the sill beam to the battery assembly due to the arrangement of the pipeline. At the same time, the arrangement of the pipeline will not interfere with the disassembly and assembly of the upper and lower vehicle bodies. This ensures that the mounting points of the upper and lower vehicle bodies have sufficient operating space and improves the feasibility of the product.

[0020] In some embodiments, the upper surface of the sill beam includes a mating surface for abutting against the upper body of the vehicle.

[0021] In the above technical solution, the dimensions of the threshold beam in the width direction can be fully utilized to achieve a highly efficient arrangement of the installation and sealing interface of the upper and lower vehicle bodies.

[0022] In some embodiments, the sill beam has a plurality of mating surfaces, which are arranged along the width direction of the sill beam and staggered along the height direction of the sill beam.

[0023] In the above technical solution, multiple mating surfaces abut against the upper vehicle body to form a stepped surface that matches the shape of the upper vehicle body. This not only enables the step surface to achieve limiting in the width direction and supporting limiting in the vertical direction, which is beneficial to improving the connection strength between the sill beam and the upper vehicle body, but also enables multi-point connection in the width direction to improve the connection reliability.

[0024] In some embodiments, the threshold beam is a frame structure and, in the width direction of the threshold beam, the threshold beam includes a first frame, a second frame, and a third frame, the first frame and the third frame being located on opposite sides of the second frame, and the first frame being provided with the clearance groove.

[0025] In the above technical solution, the sill beam is a frame structure, which can effectively reduce the weight of the sill beam and reduce manufacturing costs. At the same time, the cavity defined by the sill beam can play a role in buffering and absorbing energy, improving the reliability of the undercarriage. It can also reduce the impact of the setting of the avoidance groove on the structural strength of the sill beam, so that the sill beam has sufficient structural strength to meet the basic requirements of the sill beam as a beam.

[0026] In some embodiments, the sill beam has a cavity, and the groove wall of the clearance groove has a clearance hole communicating with the cavity.

[0027] In the above technical solution, the clearance hole is connected to the cavity. When the vehicle side pillar is in impact condition, the door sill beam moves towards the battery. The battery cooling plate current collector can extend into the clearance groove. A part of the battery cooling plate current collector can pass through the clearance hole and extend into the cavity, thereby reducing the probability of the current collector being directly squeezed and damaged.

[0028] In some embodiments, the third frame forms a connection portion adapted to connect with the upper vehicle body, a portion of the second frame is located at the lower part of the third frame and has an inclined sidewall extending obliquely away from the third frame, the inclined sidewall having a mounting position for mounting pipes for the lower vehicle body.

[0029] In the above technical solution, the pipeline can be arranged within the width range of the door sill beam, without increasing the space from the door sill beam to the battery assembly due to the arrangement of the pipeline. At the same time, the pipeline arrangement will not interfere with the disassembly and assembly of the upper and lower vehicle bodies, so that the mounting points of the upper and lower vehicle bodies have sufficient operating space and improve the feasibility of the product.

[0030] In some embodiments, the first frame, the second frame, and the third frame are integrally formed.

[0031] In the above technical solution, the overall structure of the door sill beam can be a one-piece molded profile structure, which is easy to manufacture and has low manufacturing cost.

[0032] Secondly, this application provides a vehicle body, which includes a sill beam and a battery assembly as described in the above embodiments, wherein the sill beam is located on the outside of the battery assembly.

[0033] In the above technical solution, by adopting the aforementioned sill beam, the clearance space between the sill beam and the battery assembly is increased. In the event of a side pillar collision, the battery assembly can be avoided, reducing the probability of the sill beam and battery assembly being squeezed during a side pillar collision. At the same time, the space utilization rate in the width direction of the sill beam is improved, which is conducive to improving the battery arrangement efficiency in the width direction of the sill beam and can increase the driving range.

[0034] In some embodiments, the battery assembly includes a battery, a battery cooling plate, and a battery cooling plate current collector. The battery cooling plate is used to cool and dissipate heat from the battery. The battery cooling plate current collector is in communication with the battery cooling plate and is located on the side of the battery near the sill beam. The clearance groove is adapted to be arranged opposite to at least a portion of the battery cooling plate current collector.

[0035] In the above technical solution, when the vehicle is hit by a side pole, the sill beam moves towards the battery, and the battery cooling plate current collector can extend into the avoidance groove without being directly squeezed by the sill beam. This improves the reliability of the lower body and ensures that the battery intrusion meets the standard when the vehicle is hit by a side pole, and the battery cooling plate current collector is not squeezed or damaged.

[0036] In some embodiments, the lower body further includes a cover and a bottom plate, the cover abutting against the upper surface of the sill beam and connected by a connecting structure, and the bottom plate abutting against the lower surface of the sill beam and connected by a connecting structure.

[0037] In the above technical solution, the first connecting surface can abut against the lower surface of the connection point of the cover to achieve reliable positioning and fixing of the sill beam and the cover in the vertical direction; the second connecting surface can abut against the lower surface of the connection point of the bottom plate of the vehicle body to achieve reliable positioning and fixing of the sill beam and the bottom plate in the vertical direction.

[0038] In some embodiments, the lower body further includes a brake line, and the side of the sill beam opposite to the clearance groove has a mounting position, to which at least a portion of the brake line is mounted.

[0039] In the above technical solution, the brake line can be arranged within the width range of the door sill beam without increasing the space from the door sill beam to the battery assembly due to the arrangement of the line.

[0040] In some embodiments, the lower body further includes a motor cooling pipe, and the side of the sill beam opposite to the clearance groove has a mounting position, to which at least a portion of the motor cooling pipe is mounted.

[0041] In the above technical solution, the motor cooling pipes can be arranged within the width range of the door sill beam, without increasing the space from the door sill beam to the battery assembly due to the arrangement of the pipes.

[0042] Thirdly, this application provides a vehicle body structure, which includes an upper body and a lower body as described in the above embodiments, wherein the lower body is installed on the lower side of the upper body, and the sill beam is connected to the upper body.

[0043] In the above technical solution, the sill beam is connected to the upper body, which can make full use of the sill beam's width dimension to achieve efficient arrangement of the installation and sealing interfaces of the upper and lower body. This, in turn, helps to improve the battery's arrangement efficiency in the width direction of the sill beam, thereby increasing the driving range. In addition, by adopting the aforementioned lower body, the clearance space between the sill beam and the battery assembly is increased, which can avoid the battery assembly in the event of a side pole collision, reducing the probability of the sill beam and battery assembly being squeezed together in the event of a side pole collision.

[0044] In some embodiments, the upper body includes a sill connecting plate, the sill beam has a first mating surface, the sill connecting plate abuts against the first mating surface, and the sill beam and the sill connecting plate are connected by a connecting structure.

[0045] In the above technical solution, the structure of the sill beam can be fully utilized to realize the installation of the upper and lower vehicle bodies.

[0046] In some embodiments, a seal is also included, which extends at least along the length of the sill beam and seals the gap between the sill beam and the sill connecting plate.

[0047] In the above technical solution, the structure of the sill beam can be fully utilized to achieve a highly efficient arrangement of the installation and sealing interface of the upper and lower vehicle bodies.

[0048] In some embodiments, the upper body includes a sill reinforcement plate, the sill beam has a connecting portion, the upper surface of the connecting portion forms a second mating surface, the second mating surface abuts against the sill reinforcement plate, and the sill reinforcement plate and the connecting portion are connected by a connecting structure.

[0049] In the above technical solution, the structure of the sill beam can be fully utilized to realize the installation of the upper and lower vehicle bodies.

[0050] Fourthly, embodiments of this application also provide a vehicle including the aforementioned body structure.

[0051] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0052] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0053] Figure 1 This is a schematic diagram of a vehicle in the relevant technology;

[0054] Figure 2 This is a schematic diagram of the vehicle body according to some embodiments of this application;

[0055] Figure 3 A schematic diagram of a threshold beam provided in some embodiments of this application from one viewpoint;

[0056] Figure 4 A schematic diagram of a threshold beam provided in some embodiments of this application from another perspective;

[0057] Figure 5 A side view of a threshold beam provided in some embodiments of this application from one perspective;

[0058] Figure 6 A side view of a threshold beam provided in some embodiments of this application from another perspective;

[0059] Figure 7 A side view of a threshold beam provided for some embodiments of this application from yet another perspective;

[0060] Figure 8 This is a partial schematic diagram of the upper body of some embodiments of this application;

[0061] Figure 9 This is a schematic diagram showing a partial fit between the upper body and the lower body in some embodiments of this application.

[0062] Figure label:

[0063] Body structure 1000, lower body 100, upper body 200

[0064] Threshold beam 10, first frame 101, second frame 102, third frame 103, clearance groove 11, first inner sidewall 111, second inner sidewall 112, bottom wall 113, clearance hole 12, first connecting surface 13, second connecting surface 14, inclined sidewall 15, connecting part 16, first mating surface 17, second mating surface 18.

[0065] Battery assembly 20, battery cooling plate current collector 21,

[0066] Cover 30, base plate 40, brake piping 50, motor cooling piping 60, sill connecting plate 71, sill reinforcing plate 72, inner sill plate 73, outer sill plate 74, outer side panel 75, side panel reinforcing plate 76, sealing element 80, connecting structure 90.

[0067] Width direction F1, height direction F2, length direction F3. Detailed Implementation

[0068] 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.

[0069] 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 specification 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 specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, rather than to describe a specific order or hierarchy.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] In this application, "multiple" means two or more (including two).

[0075] In this application, a battery refers to a single physical module comprising one or more individual battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack. Some batteries may include a housing for encapsulating one or more individual battery cells or multiple battery modules. The housing can prevent liquids or other foreign matter from affecting the charging or discharging of the individual battery cells. Of course, some batteries may not require the aforementioned housing and may be directly installed within the battery mounting compartment of the electrical device.

[0076] In some related technologies, the vehicle has a complete chassis structure, including crossbeams, frame longitudinal beams, floor and other structures. The battery pack is then installed on the vehicle chassis. It has many parts, a complex structure, heavy weight, and is relatively difficult to replace and repair.

[0077] Among other related technologies, battery-vehicle integration, which integrates the battery pack and chassis, has become a major research area for improving efficiency and reducing costs. However, in these technologies, the sill and battery housing are separate components, and considering safety clearances, this reduces the efficiency of battery placement in the Y-axis of the vehicle, affecting the overall driving range.

[0078] Based on this, this application provides a sill beam for a lower body. In this application, the sill beam has a length direction, a width direction and a height direction. The sill beam is located on the outside of the battery assembly of the lower body in the width direction. In the width direction of the sill beam, the sill beam has two sides arranged opposite to each other. A portion of one side of the sill beam is recessed towards the other side to form an avoidance groove. The avoidance groove is adapted to be arranged opposite to at least a portion of the battery assembly.

[0079] When using the sill beam of the lower body with the above-mentioned structure, by setting an avoidance groove on one side of the sill beam, the avoidance space between the sill beam and the battery assembly is increased, so that the battery assembly is avoided in the event of a side pillar collision, reducing the probability of the sill beam and the battery assembly being squeezed in the event of a side pillar collision. At the same time, the space utilization rate in the width direction of the sill beam is improved, which is conducive to improving the battery arrangement efficiency in the width direction of the sill beam and can improve the driving range. In addition, the avoidance groove is simple to set and easy to process and manufacture, thus facilitating its widespread use.

[0080] The invention includes a lower body with the sill beam according to an embodiment of this application, and a body structure with the lower body, which can be used for vehicles. The vehicles can be fuel vehicles, natural gas vehicles, new energy vehicles, or rail vehicles, wherein new energy vehicles can be pure electric vehicles, hybrid vehicles, plug-in hybrid electric vehicles, range-extended electric vehicles, and fuel cell vehicles, etc.

[0081] Below, please refer to the appendix. Figure 1 and Figure 2 The present application describes the vehicle body structure 1000 and the lower body 100 according to embodiments thereof, such as... Figure 1 As shown, the vehicle body structure 1000 includes an upper body 200 and a lower body 100. The lower body 100 is installed on the lower side of the upper body 200, and the upper body 200 and the lower body 100 cooperate to define the passenger compartment. The connection methods between the lower body 100 and the upper body 200 include, but are not limited to, welding, snap-fitting, bonding, fastener connection, etc.

[0082] like Figure 2 As shown, the lower body 100 includes a sill beam 10 and a battery assembly 20. In the width direction F1 of the body structure 1000, the sill beam 10 is located outside the battery assembly 20. It should be noted that the connection between the lower body 100 and the upper body 200 may include the connection between the sill beam 10 and the upper body 200, as well as the connection of other components.

[0083] Below, please refer to the appendix. Figure 3-9 The sill beam 10 of the lower body 100 according to an embodiment of this application is described.

[0084] Figures 3-7 Views of the sill beam 10 from different perspectives are shown in some embodiments, such as Figures 3-7 As shown, according to an embodiment of this application, the sill beam 10 of the lower body 100 has a length direction F3, a width direction F1 and a height direction F2. The sill beam 10 is located on the outside of the battery assembly 20 of the lower body 100 in the width direction F1. In the width direction F1, the sill beam 10 has two sides arranged opposite to each other. A portion of one side of the sill beam 10 is recessed in the direction to the other side to form an avoidance groove 11. The avoidance groove 11 is adapted to be arranged opposite to at least a portion of the battery assembly 20.

[0085] The length direction F3 of the sill beam 10 corresponds to the length direction F3 of the lower body 100, the body structure 1000, and the vehicle. The width direction F1 of the sill beam 10 corresponds to the width direction F1 of the lower body 100, the body structure 1000, and the vehicle. The height direction F2 of the sill beam 10 corresponds to the height direction F2 of the lower body 100, the body structure 1000, and the vehicle.

[0086] For example, the length direction F3 of the sill beam 10 is the front-to-back direction, the width direction F1 of the sill beam 10 is the left-to-right direction, and the height direction F2 of the sill beam 10 is the up-to-down direction. In the description of this application, the directions such as up, down, front, back, left, and right are all based on the orientation of the vehicle. That is, the direction from the front to the rear of the vehicle is the front-to-back direction, the direction from the roof to the bottom of the vehicle is the top-to-bottom direction, and the driver's seat and the passenger seat are arranged in the left-to-right direction.

[0087] The battery assembly 20 includes a battery, which is a physical module comprising one or more individual battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or battery pack. Some batteries may include a housing for housing one or more individual battery cells or a battery module. The housing may reduce or prevent the influence of liquids or other foreign matter on the charging or discharging of the individual battery cells.

[0088] Battery cells may include lithium-ion rechargeable batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and this application embodiment is not limited to these. Battery cells may be cylindrical, flat, cuboid, or other shapes, etc., and this application embodiment is not limited to these. Battery cells are generally classified into three types according to their packaging method: cylindrical battery cells, square battery cells, and pouch battery cells, and this application embodiment is not limited to these.

[0089] For example, a battery cell may include a casing, electrode assembly, and electrolyte, with the casing housing the electrode assembly and electrolyte. The electrode assembly consists of a positive electrode, a negative electrode, and a separator. The battery cell primarily functions by the movement of metal ions between the positive and negative electrode plates.

[0090] The battery assembly 20 also includes a module for cooling the battery, such as multiple battery cooling plates and a battery cooling plate current collector 21. The battery cooling plates are disposed between adjacent batteries or individual battery cells to cool and dissipate heat from the battery. The battery cooling plate current collector 21 is disposed on the same side of the multiple battery cooling plates and is in communication with the battery cooling plates. The battery cooling plate current collector 21 is used to collect and output the coolant from the main pipeline to the battery cooling plates to absorb the heat generated during battery operation.

[0091] The sill beam 10 is provided with a recessed avoidance groove 11. Taking the sill beam 10 located on the left side of the battery assembly 20 as an example, the right side of the sill beam 10 has a left-recessed avoidance groove 11. The avoidance groove 11 can be arranged opposite to the battery cooling plate current collector 21 of the battery assembly 20. That is, the sill beam 10 is set to partially open a groove to form an avoidance area. In the case of a side pole collision of the vehicle, the sill beam 10 moves towards the battery, and the battery cooling plate current collector 21 can extend into the avoidance groove 11 without causing the current collector to be directly squeezed by the sill beam 10. In other words, without increasing the overall distance between the sill beam 10 and the battery assembly 20, by providing an avoidance groove 11 on the sill beam 10, it can be ensured that the battery intrusion amount meets the standard in the case of a side pole collision of the vehicle, and the battery cooling plate current collector 21 will not be squeezed and damaged.

[0092] like Figure 9 As shown, Figure 9This is a partial cooperation diagram of the upper vehicle body 200 and the lower vehicle body 100 in some embodiments of this application. On the lower vehicle body 100, line m is the position corresponding to the outermost edge of the sill beam 10, line n is the position corresponding to the outermost edge of the battery, and the distance d between m and n is the required safe distance from the outer edge of the sill beam 10 to the battery.

[0093] Compared to the existing technology where the sill beam 10 is usually a vertical limiting surface on the side near the battery assembly 20, the sill beam 10 with the avoidance groove 11 can reduce the safety distance required from the outside of the sill beam 10 to the battery while ensuring the vehicle's functionality, sealing and collision safety, thereby improving the battery's arrangement efficiency in this direction and thus increasing the driving range.

[0094] According to the embodiments of this application, the sill beam 10, by providing an avoidance groove 11 on one side of the sill beam 10, increases the avoidance space between the sill beam 10 and the battery assembly 20, so as to avoid the battery assembly 20 when the side pillar hits, reducing the probability of the sill beam 10 and the battery assembly 20 being squeezed when the side pillar hits, and at the same time improving the space utilization rate of the sill beam 10 in the width direction F1, which is conducive to improving the arrangement efficiency of the battery in the width direction F1 of the sill beam 10, and can improve the driving range; in addition, the avoidance groove 11 is simple to set and easy to process and manufacture, thus facilitating its widespread use.

[0095] like Figure 3 and Figure 6 As shown, in some embodiments, the groove wall of the avoidance groove 11 is provided with an avoidance hole 12.

[0096] like Figure 3 The clearance groove 11 has a bottom wall 113, a first inner side wall 111, and a second inner side wall 112. The first inner side wall 111 is located on one side of the second inner side wall 112 in the height direction F2 of the sill beam 10. At least one of the bottom wall 113, the first inner side wall 111, and the second inner side wall 112 is provided with a clearance hole 12. Thus, in the event of a side pole collision, the sill beam 10 moves towards the battery, and the battery cooling plate current collector 21 can extend into the clearance groove 11. Even if the movement is too large, a part of the battery cooling plate current collector 21 can pass through the clearance hole 12, further reducing the probability of the current collector being directly squeezed and damaged, without increasing the distance between the sill beam 10 and the battery assembly 20. This further improves the battery arrangement efficiency in the width direction F1 of the lower body 100, thereby increasing the driving range.

[0097] In some embodiments, the clearance holes 12 include a plurality of clearance holes 12, which are arranged at intervals along the length direction F3 of the sill beam 10.

[0098] like Figure 8As shown, the battery cooling plate current collector 21 is provided with multiple diversion parts protruding towards one side of the sill beam 10, and multiple avoidance holes 12 correspond one-to-one with multiple diversion parts. Thus, in the event of a side pole collision with the vehicle, the battery cooling plate current collector 21 can extend into the avoidance groove 11, and the diversion parts can pass through the avoidance holes 12, further reducing the probability of the current collector being directly crushed and damaged, and improving the reliability of the vehicle. Moreover, the multiple avoidance holes 12 are arranged at intervals, which can, to a certain extent, avoid the excessive reduction of the structural strength of the sill beam 10 itself, and improve the stability of the entire sill beam 10.

[0099] In some embodiments, there is one clearance hole 12, and the clearance hole 12 extends along the length direction F3 of the sill beam 10.

[0100] By setting a clearance hole 12 extending along the length direction F3 of the sill beam 10, the clearance hole 12 can correspond to multiple protruding diversion parts on the battery cooling plate current collector 21. In the event of a side pole collision, the battery cooling plate current collector 21 can extend into the clearance groove 11, and the diversion parts can pass through the clearance hole 12, further reducing the probability of the current collector being directly crushed and damaged, and improving the reliability of the vehicle. The setting of a single clearance hole 12 facilitates the manufacturing and forming of the sill beam 10, and also facilitates the correspondence between the clearance hole 12 and multiple diversion parts. To a certain extent, it avoids the misalignment of the clearance hole 12 and the diversion parts caused by manufacturing errors, assembly errors, etc., thereby improving manufacturing efficiency and assembly efficiency.

[0101] like Figure 5 As shown, in some embodiments, the clearance groove 11 includes a bottom wall 113 and a first inner sidewall 111 and a second inner sidewall 112 arranged opposite to each other, with the first inner sidewall 111 and the second inner sidewall 112 extending obliquely toward each other along the direction close to the bottom wall 113.

[0102] like Figure 5 As shown, the first inner sidewall 111 is located on one side of the second inner sidewall 112 in the height direction F2 of the sill beam 10. The first inner sidewall 111 and the second inner sidewall 112 of the clearance groove 11 both form inclined surfaces. The first inner sidewall 111 extends inclinedly from top to bottom towards the bottom wall 113, and the second inner sidewall 112 extends inclinedly from bottom to top towards the bottom wall 113, so that the cross section of the clearance groove 11 is approximately triangular in shape, and the cross section of the battery cooling plate current collector 21 is approximately triangular in shape. That is, the cross section of the clearance groove 11 corresponds to the shape of the battery cooling plate current collector 21, so that the clearance groove 11 can serve as a clearance area for the current collector, and under the effect of clearance, the strength and stability of the sill beam 10 itself are improved as much as possible.

[0103] In some embodiments, in the height direction F2 of the sill beam 10, the opposite two side surfaces of the sill beam 10 have connecting surfaces, which are used to abut against the cover 30 and the bottom plate 40 of the lower body 100.

[0104] "Abutting" refers to the act of two components pressing against each other to increase the strength of the connection. Taking the sill beam 10 and the cover 30 of the lower body 100 as an example, the upper surface of the sill beam 10 has a first connecting surface 13, which can abut against the lower surface of the connection point of the cover 30 to achieve reliable positioning and fixation of the sill beam 10 and the cover 30 in the vertical direction; the lower surface of the sill beam 10 has a second connecting surface 14, which can abut against the lower surface of the connection point of the bottom plate 40 of the lower body 100 to achieve reliable positioning and fixation of the sill beam 10 and the bottom plate 40 in the vertical direction.

[0105] Furthermore, both the first connecting surface 13 and the second connecting surface 14 have connecting holes, and corresponding positions of the cover 30 and the bottom plate 40 are provided with connecting holes. The cover 30 and the sill beam 10 are fixedly connected by the connecting structure 90 passing through the connecting holes. The bottom plate 40 and the sill beam 10 are fixedly connected by the connecting structure 90 passing through the connecting holes. A sealing element 80 can also be provided at the connection point. The sealing element 80 can be a sealing strip, sealant, or sealant with foam, etc., which can improve the sealing performance of the lower body 100, and the connecting structure 90 can improve the sealing effect and stability of the sealing element 80.

[0106] It should be noted that, in the height direction F2 of the threshold beam 10, the first connecting surface 13 and the second connecting surface 14 can be completely corresponding, partially corresponding, or staggered, mainly to make full use of the two sides of the threshold beam 10.

[0107] Therefore, by directly abutting the cover plate and the bottom plate 40 through the connecting surface of the sill beam 10, the size of the sill beam 10 in the width direction F1 can be fully utilized to achieve a highly efficient arrangement of the installation and sealing interfaces related to the lower body 100, so that the sill beam 10 integrates the functions of the traditional vehicle sill beam 10 and the battery frame.

[0108] like Figure 5 As shown, in some embodiments, the clearance groove 11 corresponds to the positions of the two connecting surfaces of the sill beam 10.

[0109] like Figure 5As shown, in the height direction F2 of the sill beam 10, the clearance groove 11 is located between the first connecting surface 13 and the second connecting surface 14, thereby making the space for avoiding the battery assembly 20 in the width direction F1 of the sill beam 10 coincide with the space for assembling the cover 30 and the bottom plate 40, thus achieving full utilization of the width direction F1 of the sill beam 10.

[0110] like Figure 5 As shown, the first inner sidewall 111 forms an inclined surface, and the threshold beam 10 has a first connecting surface 13 located above the first inner sidewall surface. The first connecting surface 13 extends in the horizontal direction, and the first connecting surface 13 and the first inner sidewall 111 form a triangular-like region. The stability of the triangle is used to further improve the structural strength of the threshold beam 10 at this location.

[0111] Correspondingly, such as Figure 5 As shown, the second inner sidewall 112 forms an inclined surface, and the sill beam 10 has a second connecting surface 14 located below the second inner sidewall surface. The second connecting surface 14 extends in the horizontal direction, and a triangular-like region is formed between the second connecting surface 14 and the second inner sidewall 112. The stability of the triangle is used to further improve the structural strength of the sill beam 10 at this location.

[0112] like Figure 5 As shown, in some embodiments, on the width direction F1 of the sill beam 10, the side of the sill beam 10 away from the avoidance groove 11 has an inclined sidewall 15 and a connecting portion 16. The connecting portion 16 is adapted to be connected to the upper vehicle body 200. One end of the inclined sidewall 15 is connected to the connecting portion 16, and the other end of the inclined sidewall 15 extends inclinedly away from the connecting portion 16 along the width direction F1 of the sill beam 10. The inclined sidewall 15 has a mounting position for installing pipes for the lower vehicle body 100.

[0113] like Figure 5 and Figure 9 As shown, the connecting part 16 is connected to the upper vehicle body 200 via the connecting structure 90, so that the sill beam 10 is connected to the upper vehicle body 200. The connecting structure 90 may include a rivet sleeve, a bolt, and a nut. Specifically, the rivet sleeve is pressed into the cavity of the connecting part 16, and the nut is projected onto the upper vehicle body 200, and the two are connected by bolts.

[0114] The upper end of the inclined sidewall 15 is connected to the connecting part 16, and the lower end of the inclined sidewall 15 extends to the right at an angle. The pipes of the lower body 100 are installed on the inclined sidewall 15, so that the pipes of the lower body 100 can be installed on the right side of the connecting structure 90 on the connecting part 16. The two do not overlap in the vertical direction. Thus, the connecting structure 90 can be disassembled and assembled from the lower side of the connecting part 16, and the pipes of the lower body 100 will not interfere with the entire disassembly and assembly movement when the connecting structure 90 is disassembled and assembled.

[0115] The pipeline can be a brake pipeline 50, a motor cooling pipeline 60, or both a brake pipeline 50 and a motor cooling pipeline 60. The pipeline can be fixed to the mounting position on the inclined side wall 15 by a pipe clamp.

[0116] In other words, by setting the inclined sidewall 15, the pipeline can be arranged within the width range of the sill beam 10 without increasing the space from the sill beam 10 to the battery assembly 20 due to the arrangement of the pipeline. At the same time, the arrangement of the pipeline will not interfere with the disassembly and assembly of the upper and lower vehicle bodies 100, so that the mounting points of the upper and lower vehicle bodies have sufficient operating space and improve the feasibility of the product.

[0117] In some embodiments, the upper surface of the sill beam 10 includes a mating surface for abutting against the upper vehicle body 200. This mating surface abuts against the upper vehicle body 200, ensuring reliable vertical positioning and fixation of the sill beam 10 and the upper vehicle body 200, thereby improving the connection strength between the sill beam 10 and the upper vehicle body 200.

[0118] The mating surface can be a part of the upper surface of the sill beam 10 or the entire upper surface of the sill beam 10, which can improve the overall strength to varying degrees.

[0119] Furthermore, the mating surface may have a connecting hole. The upper body 200 is provided with a connecting hole at a corresponding position. The connecting structure 90 passes through the connecting hole of the upper body 200 and the sill beam 10 to fix the upper body 200 and the sill beam 10 together. A sealing element 80 may also be provided at the connection point. The sealing element 80 may be a sealing strip, sealant, or sealant with foam, etc., which can improve the sealing performance at the connection point of the upper and lower body 100. The connecting structure 90 can also improve the sealing effect and stability of the sealing element 80.

[0120] Therefore, the dimensions of the sill beam 10 in the width direction F1 can be fully utilized to achieve a highly efficient arrangement of the installation and sealing interface of the upper and lower vehicle bodies 100.

[0121] like Figure 4 and Figure 5 As shown, in some embodiments, the sill beam 10 is provided with multiple mating surfaces, which are arranged along the width direction F1 of the sill beam 10 and staggered along the height direction F2 of the sill beam 10.

[0122] like Figure 5As shown, the upper surface of the sill beam 10 has a first mating surface 17 and a second mating surface 18. The first mating surface 17 and the second mating surface 18 are arranged at different heights in the vertical direction so that the upper surface of the sill beam 10 forms a stepped surface. There can be more mating surfaces, and each mating surface can extend in the horizontal direction. Adjacent mating surfaces are connected by surfaces extending in the vertical direction. The height of multiple mating surfaces can increase or decrease from the inside to the outside, or increase and decrease alternately. Of course, the mating surfaces can also extend in a direction inclined to the horizontal.

[0123] Multiple mating surfaces abut against the upper body 200 to form a stepped surface that matches the shape of the upper body 200. This not only allows for limiting the width direction F1 and supporting the vertical direction using the stepped surface, which helps to improve the connection strength between the sill beam 10 and the upper body 200, but also enables multi-point connection in the width direction F1 to improve connection reliability.

[0124] like Figure 9 As shown, the upper vehicle body 200 includes a sill connecting plate 71, a sill beam 10 having a first mating surface 17, the sill connecting plate 71 abutting against the first mating surface 17, the sill beam 10 and the sill connecting plate 71 being connected by a connecting structure 90, the sill beam 10 and the sill connecting plate 71 being respectively provided with connecting holes, the connecting structure 90 being able to hold bolts, the sill connecting plate 71 and the sill beam 10 of the upper vehicle body 200 being connected by bolts, the left side of the bolt having a sealing element 80, the sealing element 80 being compressed by the sill connecting plate 71 to ensure the sealing between the upper vehicle body 200 and the lower vehicle body.

[0125] like Figure 5 As shown, in some embodiments, the threshold beam 10 is a frame structure and includes a first frame 101, a second frame 102 and a third frame 103. In the width direction F1 of the threshold beam 10, the first frame 101 and the third frame 103 are located on opposite sides of the second frame 102. The first frame 101 is provided with an avoidance groove 11.

[0126] The sill beam 10 is a frame structure, which can effectively reduce the weight of the sill beam 10 and reduce manufacturing costs. At the same time, the cavity defined by the sill beam 10 can play a role in buffering and absorbing energy, thereby improving the reliability of the lower body 100.

[0127] The first frame 101 is provided with a relief groove 11. The relief groove 11 can be formed by a recess in part of the first frame 101, or the first frame 101 can be composed of two parts spaced apart vertically, with the relief groove 11 defined between the two parts.

[0128] The first frame 101 is provided with a clearance groove 11. The second frame 102 and the third frame 103 are located on one side of the clearance groove 11 in the width direction F1 of the sill beam 10. That is, the side of the clearance groove 11 is still provided with a frame structure, which can reduce the impact of the clearance groove 11 on the structural strength of the sill beam 10, so that the sill beam 10 has sufficient structural strength to meet the basic requirements of the sill beam 10 as a beam.

[0129] like Figure 5 As shown, in some embodiments, the sill beam 10 has a cavity, and the groove wall of the clearance groove 11 has a clearance hole 12 communicating with the cavity.

[0130] like Figure 5 As shown, the first inner wall 111 of the clearance groove 11 has a clearance hole 12, and the first frame 101 has a cavity. The clearance hole 12 communicates with the cavity. In the event of a side pole collision with the vehicle, the sill beam 10 moves towards the battery. The battery cooling plate current collector 21 can extend into the clearance groove 11, and a part of the battery cooling plate current collector 21 can pass through the clearance hole 12 and extend into the cavity, thereby reducing the probability of the current collector being directly squeezed and damaged.

[0131] Of course, the bottom wall 113 of the clearance groove 11 can also be provided with clearance hole 12, and the second frame 102 has a cavity, with clearance hole 12 connected to the cavity.

[0132] like Figure 5 and Figure 9 As shown, in some embodiments, the third frame 103 forms a connection portion 16 adapted to connect with the upper vehicle body 200, a portion of the second frame 102 is located at the lower part of the third frame 103 and has an inclined sidewall 15 extending obliquely away from the third frame 103, the inclined sidewall 15 having a mounting position for mounting pipes for the lower vehicle body 100.

[0133] like Figure 5 and Figure 9 As shown, the third frame 103 forms a connecting part 16. The third frame 103 is connected to the upper vehicle body 200 through a connecting structure 90, so that the sill beam 10 is connected to the upper vehicle body 200. Specifically, the connecting structure 90 may include a rivet sleeve, a bolt, and a nut. The rivet sleeve is pressed into the third frame 103, and the nut is projected onto the upper vehicle body 200. The two are connected by bolts.

[0134] The upper end of the inclined sidewall 15 of the second frame 102 is connected to the third frame 103. The lower end of the inclined sidewall 15 extends to the right at an angle. The pipes of the lower body 100 are installed on the inclined sidewall 15, so that the pipes of the lower body 100 can be installed on the right side of the connecting structure 90 of the third frame 103. The pipes of the lower body 100 and the connecting structure 90 on the third frame 103 will not overlap in the vertical direction. Thus, the connecting structure 90 can be disassembled and assembled from the lower side of the third frame 103, and the pipes of the lower body 100 will not interfere with the entire disassembly and assembly movement when the connecting structure 90 is disassembled and assembled.

[0135] Therefore, the pipeline can be arranged within the width range of the sill beam 10 without increasing the space between the sill beam 10 and the battery assembly 20. At the same time, the pipeline arrangement will not interfere with the disassembly and assembly of the upper and lower vehicle bodies 100, so that the mounting points of the upper and lower vehicle bodies have sufficient operating space and improve the feasibility of the product.

[0136] In some embodiments, the first frame 101, the second frame 102, and the third frame 103 are integrally formed.

[0137] The sill beam 10 has an integral profile structure, which is easy to manufacture and has low manufacturing cost.

[0138] According to the second aspect of the present application, the lower body 100 includes a sill beam 10 and a battery assembly 20 according to the above embodiments of the present application. The sill beam 10 is located outside the battery assembly 20. By adopting the sill beam 10, the clearance space between the sill beam 10 and the battery assembly 20 is increased. In the event of a side pole collision, the battery assembly 20 can be avoided, reducing the probability of the sill beam 10 and the battery assembly 20 being squeezed in the event of a side pole collision. At the same time, the space utilization rate of the sill beam 10 in the width direction F1 is improved, which is conducive to improving the arrangement efficiency of the battery in the width direction F1 of the sill beam 10, and can improve the driving range.

[0139] In some embodiments, the battery assembly 20 includes a battery, a battery cooling plate, and a battery cooling plate current collector 21. The battery cooling plate is used to cool and dissipate heat from the battery. The battery cooling plate current collector 21 is in communication with the battery cooling plate and is located on the side of the battery near the sill beam 10. The clearance groove 11 is adapted to be arranged opposite to at least a portion of the battery cooling plate current collector 21.

[0140] Therefore, in the event of a side pole impact, the sill beam 10 moves towards the battery, and the battery cooling plate current collector 21 can extend into the clearance groove 11 without the current collector being directly squeezed by the sill beam 10. This improves the reliability of the lower body 100 and ensures that the battery intrusion amount meets the standard in the event of a side pole impact, and that the battery cooling plate current collector 21 is not squeezed or damaged.

[0141] like Figure 9 As shown, in some embodiments, the lower body 100 further includes a cover 30 and a bottom plate 40. The cover 30 abuts against the upper surface of the sill beam 10 and is connected by a connecting structure 90. The bottom plate 40 abuts against the lower surface of the sill beam 10 and is connected by a connecting structure 90.

[0142] like Figure 5 and Figure 9 As shown, the upper surface of the sill beam 10 has a first connecting surface 13, which can abut against the lower surface of the connection point of the cover 30 to achieve reliable positioning and fixation of the sill beam 10 and the cover 30 in the vertical direction; the lower surface of the sill beam 10 has a second connecting surface 14, which can abut against the lower surface of the connection point of the bottom plate 40 of the lower vehicle body 100 to achieve reliable positioning and fixation of the sill beam 10 and the bottom plate 40 in the vertical direction; a sealing element 80 can also be provided at the connection point, which can be a sealing strip, sealant, or sealant with foam, etc., thereby improving the sealing performance of the lower vehicle body 100, and the connection structure 90 can improve the sealing effect and stability of the sealing element 80.

[0143] like Figure 9 As shown, in some embodiments, the lower body 100 also includes a brake line 50, and the side of the sill beam 10 away from the clearance groove 11 has a mounting position, to which at least a portion of the brake line 50 is mounted.

[0144] The brake line 50 can be installed on one side of the clearance groove 11, that is, the brake line 50 can be arranged within the width range of the sill beam 10 without increasing the space from the sill beam 10 to the battery assembly 20 due to the arrangement of the line.

[0145] like Figure 9 As shown, in some embodiments, the lower body 100 also includes a motor cooling pipe 60, and the side of the sill beam 10 away from the clearance groove 11 has a mounting position, and at least a portion of the motor cooling pipe 60 is mounted to the mounting position.

[0146] The motor cooling pipe 60 can be installed on one side of the clearance groove 11, that is, the motor cooling pipe 60 can be arranged within the width range of the sill beam 10 without increasing the space from the sill beam 10 to the battery assembly 20 due to the arrangement of the pipe.

[0147] According to a third aspect embodiment of the present application, the vehicle body structure 1000 includes an upper body 200 and a lower body 100 according to a second aspect embodiment of the present application. The lower body 100 is mounted on the lower side of the upper body 200, and the door sill beam 10 is connected to the upper body 200.

[0148] In this application, the vehicle body structure 1000 refers to the arrangement of the various components constituting the overall vehicle body. The vehicle body structure 1000 includes an upper body 200 and a lower body 100. The upper body 200 refers to the part of the vehicle used for carrying passengers and cargo, and may include, for example, windows, doors, and passenger compartments. The upper body 200 and the lower body 100 work together to define the passenger compartment.

[0149] The sill beam 10 is connected to the upper body 200 through the connecting structure 90 and the sealing element 80. This allows full use of the sill beam 10’s dimensions in the width direction F1 to achieve efficient arrangement of the installation and sealing interfaces of the upper and lower body 100. This, in turn, helps to improve the battery’s arrangement efficiency in the width direction F1 of the sill beam 10, thereby increasing the driving range.

[0150] Furthermore, by adopting the aforementioned lower body 100, the clearance space between the sill beam 10 and the battery assembly 20 is increased, allowing the battery assembly 20 to be avoided during a side pole collision, thus reducing the probability of the sill beam 10 and the battery assembly 20 being squeezed together during a side pole collision.

[0151] like Figure 8 and Figure 9 As shown, in some embodiments, the upper body 200 includes a sill connecting plate 71, a sill beam 10 having a first mating surface 17, the sill connecting plate 71 abutting against the first mating surface 17, and the sill beam 10 and the sill connecting plate 71 being connected by a connecting structure 90.

[0152] This allows full utilization of the structure of the threshold beam 10 to enable the installation of the upper and lower vehicle bodies 100.

[0153] like Figure 9 As shown, in some embodiments, the vehicle body structure 1000 further includes a seal 80 that extends at least along the length direction F3 of the sill beam 10 and seals the gap between the sill beam 10 and the sill connecting plate 71.

[0154] like Figure 9 As shown, the sill connecting plate 71 abuts against the first mating surface 17, and the sill beam 10 is connected to the sill connecting plate 71 through the connecting structure 90. The sill beam 10 and the sill connecting plate 71 are respectively provided with connecting holes. The connecting structure 90 can be used to install bolts, and the sill connecting plate 71 and the sill beam 10 of the upper vehicle body 200 are connected by bolts. There is a sealing element 80 on the left side of the bolt. The sealing element 80 ensures the sealing between the upper vehicle body 200 and the lower vehicle body by the compression of the sill connecting plate 71.

[0155] This allows for full utilization of the sill beam 10 structure, enabling efficient arrangement of the installation and sealing interfaces of the upper and lower vehicle bodies 100.

[0156] like Figure 8 and Figure 9As shown, in some embodiments, the upper body 200 includes a sill reinforcement plate 72, the sill beam 10 has a connecting portion 16, the upper surface of the connecting portion 16 forms a second mating surface 18, the second mating surface 18 abuts against the sill reinforcement plate 72, and the sill reinforcement plate 72 and the connecting portion 16 are connected by a connecting structure 90.

[0157] This allows full utilization of the structure of the threshold beam 10 to enable the installation of the upper and lower vehicle bodies 100.

[0158] like Figure 8 As shown, the upper body 200 also includes an inner sill plate 73, an outer sill plate 74, an outer side panel 75, and a side reinforcement plate 76. The outer side panel 75, the side reinforcement plate 76, the inner sill plate 73, and the upper end of the sill connecting plate 71 are connected. The sill reinforcement plate 72 is connected to the inner sill plate 73 and the outer sill plate 74.

[0159] The vehicle according to the fourth aspect of this application includes the body structure 1000 according to the above-described embodiments of this application. Therefore, by employing the body structure 1000, the clearance space between the sill beam 10 and the battery assembly 20 is increased. In the event of a side pole collision, the battery assembly 20 can be avoided, reducing the probability of compression between the sill beam 10 and the battery assembly 20 during a side pole collision. Simultaneously, the space utilization rate in the width direction F1 of the sill beam 10 is improved, which is beneficial to improving the battery arrangement efficiency in the width direction F1 of the sill beam 10, thereby increasing the driving range.

[0160] The following description, in conjunction with the accompanying drawings, describes a specific embodiment of a vehicle body structure 1000 and a vehicle having the same.

[0161] like Figure 1 As shown, the vehicle body structure 1000 includes a lower body 100 and an upper body 200, and as... Figures 2-9 As shown, the lower body 100 includes a sill beam 10, a battery assembly 20, a cover 30, a base plate 40, a brake line 50, and a motor cooling line 60. The sill beam 10 is located on the outside of the battery assembly 20 of the lower body 100 in the width direction F1.

[0162] The threshold beam 10 is a frame structure and includes a first frame 101, a second frame 102 and a third frame 103. In the width direction F1 of the threshold beam 10, the first frame 101 and the third frame 103 are located on opposite sides of the second frame 102. The first frame 101 is provided with an avoidance groove 11.

[0163] The clearance groove 11 includes a bottom wall 113 and a first inner side wall 111 and a second inner side wall 112 arranged opposite to each other. The first inner side wall 111 and the second inner side wall 112 extend inclined towards each other along the direction close to the bottom wall 113.

[0164] The first inner sidewall 111 has multiple clearance holes 12, which are arranged at intervals along the length direction F3 of the threshold beam 10. The first frame 101 has a cavity, and the clearance holes 12 are connected to the cavity.

[0165] The upper surface of the threshold beam 10 has a first mating surface 17 and a second mating surface 18. The first mating surface 17 and the second mating surface 18 are arranged at different heights in the vertical direction so that the upper surface of the threshold beam 10 forms a stepped surface.

[0166] The upper surface of the sill beam 10 also has a first connecting surface 13, which can abut against the lower surface of the connection of the cover 30 to achieve reliable positioning and fixation of the sill beam 10 and the cover 30 in the vertical direction; the lower surface of the sill beam 10 has a second connecting surface 14, which can abut against the lower surface of the connection of the bottom plate 40 of the lower vehicle body 100.

[0167] The battery assembly 20 includes a battery, a battery cooling plate, and a battery cooling plate current collector 21. The battery cooling plate is used to cool and dissipate heat from the battery. The battery cooling plate current collector 21 is in communication with the battery cooling plate and is located on the side of the battery near the sill beam 10. The clearance groove 11 is adapted to be arranged opposite to at least a portion of the battery cooling plate current collector 21.

[0168] In the event of a side pole impact, the sill beam 10 moves towards the battery, allowing the battery cooling plate current collector 21 to extend into the clearance groove 11 without being directly squeezed by the sill beam 10. This improves the reliability of the lower body 100 and ensures that the battery intrusion amount meets the standard in the event of a side pole impact, and that the battery cooling plate current collector 21 is not damaged by compression.

[0169] The third frame 103 is connected to the upper vehicle body 200 via a connecting structure 90, so that the sill beam 10 is connected to the upper vehicle body 200. The inclined sidewall 15 of the second frame 102 is located at the lower part of the third frame 103. The upper end of the inclined sidewall 15 is connected to the third frame 103, and the lower end of the inclined sidewall 15 extends inclined to the right. The pipes of the lower vehicle body 100 are installed on the inclined sidewall 15, so that the brake pipe 50 and the motor cooling pipe 60 can be installed on the right side of the connecting structure 90 of the third frame 103. The pipes of the lower vehicle body 100 and the connecting structure 90 on the third frame 103 do not overlap in the vertical direction. Thus, the connecting structure 90 can be disassembled and assembled from the lower side of the third frame 103, and the pipes of the lower vehicle body 100 will not interfere with the entire disassembly and assembly movement when the connecting structure 90 is disassembled and assembled.

[0170] The pipeline is arranged within the width of the sill beam 10, so there is no need to increase the space between the sill beam 10 and the battery assembly 20 due to the pipeline arrangement. At the same time, the pipeline arrangement will not interfere with the disassembly and assembly of the upper and lower vehicle bodies 100, so that the mounting points of the upper and lower vehicle bodies have sufficient operating space and improve the feasibility of the product.

[0171] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A sill beam for a lower body, the sill beam having a length direction, a width direction, and a height direction, the sill beam being located on the outside of the battery assembly of the lower body in the width direction, characterized in that, In the width direction of the sill beam, the sill beam has two oppositely arranged sides. A portion of one side of the sill beam is recessed towards the other side to form a clearance groove. The clearance groove is adapted to be arranged opposite to at least a portion of the battery assembly. In the width direction of the sill beam, the side of the sill beam away from the clearance groove has an inclined sidewall and a connecting portion. The connecting portion is adapted to be connected to the upper vehicle body. One end of the inclined sidewall is connected to the connecting portion, and the other end of the inclined sidewall extends inclinedly away from the connecting portion along the width direction of the sill beam. The inclined sidewall has a mounting position for pipes for mounting the lower vehicle body.

2. The sill beam of the lower body according to claim 1, characterized in that, The groove wall of the avoidance groove is provided with avoidance holes.

3. The sill beam of the lower body according to claim 2, characterized in that, The clearance holes include multiple holes, which are spaced apart along the length of the sill beam; or, the clearance hole is a single hole that extends along the length of the sill beam.

4. The sill beam of the lower body according to claim 1, characterized in that, The clearance groove includes a bottom wall and a first inner side wall and a second inner side wall arranged opposite to each other. Along the direction close to the bottom wall, the first inner side wall and the second inner side wall extend obliquely toward each other.

5. The sill beam of the lower body according to claim 1, characterized in that, In the height direction of the sill beam, the opposite two side surfaces of the sill beam each have a connecting surface, and the two connecting surfaces are used to abut against the cover and bottom plate of the lower body.

6. The sill beam of the lower body according to claim 5, characterized in that, The clearance groove corresponds to the position of the two connecting surfaces of the threshold beam.

7. The sill beam of the lower body according to claim 1, characterized in that, The upper surface of the sill beam includes a mating surface for contacting the upper vehicle body.

8. The sill beam of the lower body according to claim 7, characterized in that, The sill beam has multiple mating surfaces, which are arranged along the width direction of the sill beam and staggered along the height direction of the sill beam.

9. The sill beam of the lower body according to claim 1, characterized in that, The threshold beam is a frame structure and includes a first frame, a second frame and a third frame. In the width direction of the threshold beam, the first frame and the third frame are located on opposite sides of the second frame, and the first frame is provided with the avoidance groove.

10. The sill beam of the lower body according to claim 9, characterized in that, The threshold beam has a cavity, and the groove wall of the clearance groove has clearance holes communicating with the cavity.

11. The sill beam of the lower body according to claim 9, characterized in that, The third frame forms a connection portion suitable for connection with the upper vehicle body. A portion of the second frame is located at the lower part of the third frame and has an inclined sidewall extending in a direction away from the third frame. The inclined sidewall has a mounting position for pipes for mounting the lower vehicle body.

12. The sill beam of the lower body according to claim 9, characterized in that, The first frame, the second frame, and the third frame are integrally formed.

13. A vehicle body, characterized in that, It includes a sill beam and a battery assembly according to any one of claims 1-12, wherein the sill beam is located on the outside of the battery assembly.

14. The undercarriage body according to claim 13, characterized in that, The battery assembly includes a battery, a battery cooling plate, and a battery cooling plate current collector. The battery cooling plate is used to cool and dissipate heat from the battery. The battery cooling plate current collector is in communication with the battery cooling plate and is located on the side of the battery near the sill beam. The clearance groove is adapted to be arranged opposite to at least a portion of the battery cooling plate current collector.

15. The undercarriage body according to claim 13, characterized in that, The lower body also includes a cover and a bottom plate. The cover abuts against the upper surface of the sill beam and is connected by a connecting structure. The bottom plate abuts against the lower surface of the sill beam and is connected by a connecting structure.

16. The undercarriage body according to claim 13, characterized in that, The lower body also includes a brake line, and the side of the sill beam opposite to the clearance groove has a mounting position, to which at least a portion of the brake line is installed.

17. The undercarriage body according to claim 13, characterized in that, The lower body also includes a motor cooling pipe, and the side of the sill beam opposite to the clearance groove has a mounting position, to which at least a portion of the motor cooling pipe is installed.

18. A vehicle body structure, characterized in that, It includes an upper vehicle body and a lower vehicle body according to any one of claims 13-17, wherein the lower vehicle body is installed on the lower side of the upper vehicle body, and the sill beam is connected to the upper vehicle body.

19. The vehicle body structure according to claim 18, characterized in that, The upper body includes a sill connecting plate, the sill beam has a first mating surface, the sill connecting plate abuts against the first mating surface, and the sill beam and the sill connecting plate are connected by a connecting structure.

20. The vehicle body structure according to claim 19, characterized in that, It also includes a seal that extends at least along the length of the sill beam and seals the gap between the sill beam and the sill connecting plate.

21. The vehicle body structure according to claim 18, characterized in that, The upper body includes a sill reinforcement plate, the sill beam has a connecting part, the upper surface of the connecting part forms a second mating surface, the second mating surface abuts against the sill reinforcement plate, and the sill reinforcement plate and the connecting part are connected by a connecting structure.

22. A vehicle, characterized in that, Includes the vehicle body structure as described in any one of claims 18-21.

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