Side sill structure and vehicle

Abstract

The application relates to a side beam structure and a vehicle. The side beam structure comprises a first beam body, the bottom of the first beam body is fixedly connected with a bottom plate of a battery pack; a second beam body is located on the side of the first beam body away from the battery cell of the battery pack and is located on the lower side of the lower longitudinal beam of the vehicle, the second beam body is fixedly connected with the lower longitudinal beam, and the cross-sectional width of the second beam body gradually increases from the side away from the first beam body to the side close to the first beam body. When the vehicle is subjected to a lateral collision, the lower longitudinal beam of the vehicle transmits the force to the first beam body through the second beam body, and the first beam body transmits the force to the bottom plate of the battery pack. Since the cross-sectional width of the second beam body gradually increases from the side away from the first beam body to the side close to the first beam body, the transmission path of the lateral force can be optimized, the lateral force generated in the side column collision is more efficiently transmitted to the lower part of the first beam body, and then transmitted to the bottom plate of the battery pack, the risk of deformation of the side beam and inward tilting and extrusion of the battery cell is reduced, and the safety of the vehicle is effectively improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a side beam structure and vehicle. Background Technology

[0002] With the development of vehicle technology, new energy vehicles have been widely used, and the safety of power batteries has become a core issue in vehicle safety design. Side pole impact is a common extreme collision scenario during vehicle operation. The impact force is concentrated in a small contact area on the side of the vehicle body, which can easily lead to the battery pack being squeezed or punctured.

[0003] In related technologies, the side beams in the battery pack frame are used to resist impact forces and protect the battery cells.

[0004] However, common side beams are difficult to effectively transfer the impact force to the battery pack base plate when subjected to a lateral collision, which can easily cause the side beams to squeeze the battery cells inward, leading to safety hazards. Utility Model Content

[0005] Therefore, it is necessary to provide a side beam structure and vehicle to address the problem that the side beam in conventional technology is unable to effectively transfer the impact force to the battery pack bottom plate when subjected to a lateral collision.

[0006] This application provides a side beam structure, including: a first beam, the bottom of which is fixedly connected to the bottom plate of a battery pack; and a second beam, located on the side of the first beam away from the battery cells of the battery pack and on the lower longitudinal beam of the vehicle, the second beam being fixedly connected to the lower longitudinal beam, the cross-sectional width of the second beam gradually increasing from the side away from the first beam to the side closer to the first beam.

[0007] According to one embodiment of this application, the first beam includes a first component and a second component, wherein the first component is located above the second component and is fixedly connected to the second component, one side of the second component is connected to the bottom plate of the battery pack, and the other side is connected to the second beam.

[0008] According to one embodiment of this application, in the direction from the first beam to the battery cell, the width of the second component is greater than the width of the first component.

[0009] According to one embodiment of this application, a first inclined rib is provided in the first component and / or the second component, and the first inclined rib gradually slopes downward from one end close to the second beam to one end away from the second beam.

[0010] According to one embodiment of this application, the second beam includes: an upper outer plate, which is fitted to the lower longitudinal beam, and one end of the upper outer plate is fixedly connected to the first beam; a connecting plate, located below the upper outer plate, and one end of the connecting plate is fixedly connected to the end of the upper outer plate away from the first beam; and a lower outer plate, located below the upper outer plate, and one end of the lower outer plate is fixedly connected to the end of the connecting plate away from the upper outer plate, and the other end of the lower outer plate is fixedly connected to the first beam, wherein the lower outer plate gradually tilts away from the upper outer plate from the end near the connecting plate to the end away from the connecting plate.

[0011] According to one embodiment of this application, the second beam further includes: a first transverse connecting bar located between the upper outer plate and the lower outer plate, and spaced parallel to the upper outer plate, with one end of the first transverse connecting bar connected to the connecting plate and the other end connected to the first beam.

[0012] According to one embodiment of this application, it further includes: a sleeve, the sleeve being fixedly connected to the upper outer plate and the first transverse connecting rib; and a fixing bolt, the fixing bolt passing through the sleeve and connected to the lower longitudinal beam.

[0013] According to one embodiment of this application, the lower outer plate is provided with a through hole, and the through hole is disposed opposite to the fixing bolt.

[0014] According to one embodiment of this application, the second beam further includes: a second inclined rib, the second inclined rib connecting the upper outer plate and the first transverse connecting rib, the second inclined rib gradually inclined from one end connected to the upper outer plate to one end connected to the first transverse connecting rib towards the first beam.

[0015] This application also provides a vehicle, including: a body, the body including a lower longitudinal beam; a battery pack including a frame, battery cells and a base plate, wherein the frame includes the side beam structure of the above embodiments.

[0016] In the aforementioned side beam structure and vehicle, the bottom of the first beam is fixedly connected to the bottom plate of the battery pack, and the second beam is located on the side of the first beam away from the battery cells and is fixedly connected to the lower longitudinal beam of the vehicle. When the vehicle experiences a side collision, the lower longitudinal beam transmits the force to the first beam through the second beam, and the first beam then transmits the force to the bottom plate of the battery pack. Since the cross-sectional width of the second beam gradually increases from the side away from the first beam to the side closer to the first beam, the transmission path of the lateral force can be optimized, allowing the lateral force generated by the side pole collision to be transmitted more efficiently to the lower part of the first beam, and then to the bottom plate of the battery pack. Therefore, the force on the upper part of the side beam can be reduced, thereby reducing the risk of side beam deformation and inward tilting and squeezing of the battery cells, effectively improving vehicle safety. Attached Figure Description

[0017] Figure 1 This is a front view of the installation structure of a side beam structure according to an embodiment of this application.

[0018] Figure 2 This is a perspective view of the installation structure of a side beam structure according to an embodiment of this application.

[0019] Figure label:

[0020] 100. First beam body; 110. First component; 111. First inclined reinforcement; 112. Second transverse connecting reinforcement; 120. Second component;

[0021] 200. Second beam; 210. Upper outer plate; 220. Connecting plate; 230. Lower outer plate; 231. Through hole; 240. First transverse connecting bar; 250. Second inclined bar;

[0022] 300, Sleeve;

[0023] 400. Fixing bolts;

[0024] 500, base plate;

[0025] 600, battery cell;

[0026] 700. Lower longitudinal beam. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] Combination Figure 1 and Figure 2An embodiment of this application provides a side beam structure including a first beam 100 and a second beam 200. The bottom of the first beam 100 is fixedly connected to the bottom plate 500 of the battery pack. The second beam 200 is located on the side of the first beam 100 away from the battery cell 600 of the battery pack and is located below the lower longitudinal beam 700 of the vehicle. The second beam 200 is fixedly connected to the lower longitudinal beam 700, and the cross-sectional width of the second beam 200 gradually increases from the side away from the first beam 100 to the side closer to the first beam 100.

[0034] In this embodiment, the first beam 100 and the second beam 200 are laterally distributed along the direction of approaching or away from the battery pack cell 600. The first beam 100 is located on the side close to the battery pack cell 600, and the second beam 200 is located on the side away from the battery pack cell 600. The two beams are fixedly connected on their adjacent sides, for example, by integral molding or welding, to ensure that they do not produce relative displacement when subjected to lateral impact force, thus maintaining the stability of the overall structure and jointly bearing and transmitting the force, avoiding structural damage due to excessive local stress caused by loose connection.

[0035] The width of the second beam 200 gradually increases from the side away from the first beam 100 to the side closer to the first beam 100. The width of the cross section refers to the width of the cross section along the vertical direction, making the cross section resemble an inverted triangle, trapezoid, or approximate shape.

[0036] When a side pole collision occurs, the lateral force generated by the collision first acts on the second beam 200, which then transfers this force to the first beam 100. The shape of the second beam 200 and the connection structure between the second beam 200 and the first beam 100 optimize the force transmission path, transferring a portion of the force to the bottom of the first beam 100, and then to the bottom plate 500 of the battery pack. This significantly reduces the risk of the first beam 100 deforming and tilting inward due to excessive force, thereby preventing the battery cells 600 from being squeezed, improving the safety of the battery pack in side pole collision scenarios, and providing strong protection for the overall safety performance of the vehicle.

[0037] Optionally, the second beam 200 is connected to the lower part of the first beam 100, concentrating the force transmitted by the second beam 200 on the lower part of the first beam 100. This transfers more force to the battery pack base plate 500, reducing the force that would cause the first beam 100 to tilt inward around its connection point with the battery pack. It also reduces the lever arm that would cause the first beam 100 to tilt inward. Thus, the torque is comprehensively reduced, significantly lowering the risk of the first beam 100 tilting inward due to excessive force, providing good protection for the battery cell 600.

[0038] Optionally, the first beam 100 is bolted to the base plate 500 of the battery pack and bonded with epoxy resin adhesive to improve the connection strength between the first beam 100 and the base plate 500 of the battery pack, so that the force on the first beam 100 can be better transmitted to the base plate 500 of the battery pack.

[0039] According to one embodiment of the present invention, the first beam 100 includes a first component 110 and a second component 120, wherein the first component 110 is located above the second component 120 and is fixedly connected to the second component 120, and one side of the second component 120 is connected to the bottom plate 500 of the battery pack, and the other side is connected to the second beam 200.

[0040] In this embodiment, the first beam 100 includes a first component 110 and a second component 120. The first component 110 is disposed above the second component 120, and the two are fixedly connected, for example, by welding or integral molding, to form an upper and lower layered structure. One side of the second component 120 is fixedly connected to the bottom plate 500 of the battery pack, and the other side is fixed to the second beam 200 by welding or integral molding.

[0041] When a lateral impact force is applied to the second beam 200, the force is directly transmitted to the battery pack base plate 500 through the second component 120. Since the second component 120 is located at the bottom and connected to the base plate 500, the force transmission path is shorter, reducing the force on the first component 110.

[0042] Optionally, the first component 110 and / or the second component 120 are provided with a second transverse connecting rib 112. The second transverse connecting rib 112 is disposed inside the first component 110 and / or the second component 120, extending laterally and connecting to the side walls of the beam of the first component 110 or the second component 120. Specifically, the second transverse connecting rib 112 can be fixedly connected to the side walls of the beam of the first component 110 or the second component 120 by means such as welding, bonding, or integral molding. The second transverse connecting rib 112 can be a plate-like structure or a rib-like structure to provide additional support. The number and position of the second transverse connecting rib 112 can be varied; for example, multiple parallel ribs can be provided to disperse stress. The second transverse connecting rib 112 can enhance the overall rigidity and bending strength of the beam, prevent local deformation of the beam by dispersing stress, and further optimize force transmission.

[0043] According to one embodiment of the present invention, in the direction from the first beam 100 to the battery pack, the width of the second component 120 is greater than the width of the first component 110.

[0044] In the direction from the first beam 100 to the cell 600, i.e., in the lateral direction, the width of the second component 120 is greater than the width of the first component 110, so that the first beam 100 has a cross-sectional shape that is narrower at the top and wider at the bottom, such as forming a trapezoidal or stepped cross-section. The width difference can be achieved by a smooth transition or abrupt change, for example, by extending the edge of the second component 120 outward to increase the width.

[0045] In this embodiment, since the second component 120 has a larger width, the force can be more easily transmitted to the base plate 500 through it. At the same time, the larger width can increase the structural strength of the second component 120 and enhance the anti-tipping ability of the side beam.

[0046] According to one embodiment of the present invention, a first inclined rib 111 is provided in the first component 110 and / or the second component 120. The first inclined rib 111 gradually inclines downward from one end close to the second beam 200 to the end away from the second beam 200.

[0047] Optionally, both the first component 110 and the second component 120 are provided with first inclined ribs 111. The first inclined ribs 111 connect to the inner wall of the first beam 100. The first inclined ribs 111 gradually slope downwards from one end near the second beam 200 to the end away from the second beam 200, forming an inclined support structure. The inclination angle can be adjusted according to design requirements, for example, at an angle between 30 and 60 degrees with the horizontal plane. This inclined structure allows some of the lateral force to be decomposed into a downward component when force is transmitted from the second beam 200, guiding the force to the bottom plate 500. The first inclined ribs 111 can be plate-shaped or rod-shaped. The number of first inclined ribs 111 can be one or more. When multiple first inclined ribs 111 are provided, their arrangement is not limited to a straight line; they can also be curved or polygonal.

[0048] The inclined structure of the first inclined rib 111 can convert the horizontal impact force into a downward force, which is transmitted to the base plate 500 more efficiently, reducing the stress on the upper part of the beam. At the same time, the first inclined rib 111 enhances the overall rigidity of the beam, preventing excessive collapse and bending deformation during collision, thereby reducing the possibility of the battery cell 600 being under pressure.

[0049] According to one embodiment of the present invention, the second beam 200 includes an upper outer plate 210, a connecting plate 220, and a lower outer plate 230. The upper outer plate 210 is fitted to the lower longitudinal beam 700, and one end of the upper outer plate 210 is fixedly connected to the first beam 100. The connecting plate 220 is located below the upper outer plate 210 and is vertically arranged, with its top end fixedly connected to the end of the upper outer plate 210 away from the first beam 100. The lower outer plate 230 is located below the upper outer plate 210, with one end of the lower outer plate 230 fixedly connected to the end of the connecting plate 220 away from the upper outer plate 210, i.e., one end of the lower outer plate 230 is fixedly connected to the bottom end of the connecting plate 220, and the other end of the lower outer plate 230 is fixedly connected to the first beam 100. The lower outer plate 230 gradually tilts away from the upper outer plate 210 from the end near the connecting plate 220 to the end away from the connecting plate 220. In other words, the outer plate gradually tilts downward from the end near the connecting plate 220 to the end away from the connecting plate 220.

[0050] For example, the upper outer plate 210 is attached to the lower longitudinal beam 700 of the vehicle and fixed by means such as bolts. One end of the upper outer plate 210 is fixed to the first beam 100, for example, to the top side wall of the first component 110 of the beam. A connecting plate 220 is vertically or nearly vertically disposed below the upper outer plate 210, connecting the upper outer plate 210 and the lower outer plate 230. The connecting plate 220 can be a flat plate or a plate-like structure with reinforcing ribs. The lower outer plate 230 forms an inclined structure, and the inclination can be straight or curved. The connection method of the upper outer plate 210, the connecting plate 220 and the lower outer plate 230 can be integrally formed or separately formed and fixedly connected by means such as riveting or welding.

[0051] In this embodiment, the upper outer plate 210 directly receives the impact force, and the force is transmitted to the lower part of the first beam 100 through the connecting plate 220 and the inclined lower outer plate 230. The inclined design of the lower outer plate 230 increases the downward force component, making it easier for the force to be transmitted to the bottom plate 500, reducing the moment on the upper part of the first beam 100, thereby effectively preventing the side beams from tilting inward. Furthermore, the trapezoidal structure of the second beam 200 can improve the overall stability and reduce the possibility of the second beam 200 collapsing and bending during the force transmission process.

[0052] According to one embodiment of the present invention, the second beam 200 further includes a first transverse connecting rib 240, which is located between the upper outer plate 210 and the lower outer plate 230 and is arranged parallel to and spaced apart from the upper outer plate 210. One end of the first transverse connecting rib 240 is connected to the connecting plate 220 and the other end is connected to the first beam 100.

[0053] The first transverse connecting bar 240 can be a plate-shaped bar with a rectangular or trapezoidal cross-section. There can be one or more first transverse connecting bars 240, for example, two parallel first transverse connecting bars 240 can be provided to increase rigidity. The connection method between the first transverse connecting bar 240 and the connecting plate 220 and the first beam 100 can be integral molding or welding, etc.

[0054] The first transverse connecting rib 240 extends laterally, which can enhance the connection strength between the upper outer plate 210, the lower outer plate 230 and the connecting plate 220, and improve the rigidity and deformation resistance of the second beam 200. In addition, the first transverse connecting rib 240 provides an additional support path to avoid uneven force transmission that could lead to local deformation of the first beam 100. As a result, the force distribution can be further optimized, reducing the risk of cell 600 being squeezed.

[0055] According to one embodiment of the present invention, the side beam structure further includes a sleeve 300 and a fixing bolt 400. The sleeve 300 is fixedly connected to the upper outer plate 210 and the first transverse connecting rib 240. The fixing bolt 400 passes through the sleeve 300 and connects to the lower longitudinal beam 700.

[0056] The sleeve 300 can be cylindrical or square tubular. It is positioned at the vertical through-holes in the upper outer plate 210 and the first transverse connecting rib 240, and is fixedly connected to them by methods such as welding or crimping to form a robust connection point. The fixing bolt 400 can be a standard bolt or a special fastener. It passes through the sleeve 300 and connects to the lower longitudinal beam 700 of the vehicle. For example, the fixing bolt 400 may thread into a threaded hole in the lower longitudinal beam 700, or it may pass through a through-hole in the lower longitudinal beam 700 and be locked with a nut.

[0057] The sleeve 300 and fixing bolt 400 provide a reliable connection, enhancing the connection strength between the second beam 200 and the lower longitudinal beam 700 and preventing disengagement under lateral forces. The sleeve 300 reduces stress concentration and improves durability, thereby ensuring the continuity and stability of force transmission and further protecting the internal structure of the battery pack.

[0058] According to one embodiment of the present invention, the lower outer plate 230 is provided with a through hole 231, which is disposed opposite to the fixing bolt 400.

[0059] In this embodiment, a through hole 231 is provided on the lower outer plate 230. The through hole 231 can be a circular hole or an elliptical hole. The through hole 231 corresponds to the position of the fixing bolt 400, for example, it is located below the fixing bolt 400. The through hole 231 allows the bolt to pass through, providing installation space for the bolt.

[0060] By setting through holes 231, the installation and maintenance of fixing bolts 400 can be facilitated, improving manufacturing and assembly efficiency; at the same time, through holes 231 can reduce the weight of the second beam 200 without affecting the structural strength, thus contributing to overall lightweighting.

[0061] According to one embodiment of the present invention, the second beam 200 further includes a second inclined rib 250, which connects the upper outer plate 210 and the first transverse connecting rib 240. The second inclined rib 250 gradually inclines from one end connected to the upper outer plate 210 to one end connected to the first transverse connecting rib 240 toward the direction closer to the first beam 100.

[0062] The second inclined rib 250 can be a plate-like or rod-like structure. The second inclined rib 250 connects the upper outer plate 210 and the first transverse connecting rib 240, gradually inclining from the end connecting to the upper outer plate 210 towards the end connecting to the first transverse connecting rib 240 towards the first beam 100, forming an inclined support. The number and arrangement of the second inclined ribs 250 can be flexibly determined as needed; for example, multiple second inclined ribs 250 can be set to enhance stability. The inclination directions of the multiple second inclined ribs 250 can be the same or different to adapt to different force transmission requirements.

[0063] The inclined second rib 250 can work in conjunction with the lower outer plate 230 to better transfer the force to the lower part of the first beam 100, and can improve the structural strength of the second beam 200 on the force transmission path and reduce the deformation of the second beam 200. In addition, this structure further disperses stress, reduces the risk of local fatigue, and thus improves the protection performance of the side beam.

[0064] According to one embodiment of the present invention, the first beam 100 and the second beam 200 are integrally formed, which can reduce the production difficulty and improve the overall strength.

[0065] This embodiment also provides a vehicle, including a body and a battery pack. The body includes a lower longitudinal beam 700. The battery pack includes a frame, battery cells 600, and a base plate 500, the frame including the side beam structure of the above embodiment.

[0066] Optionally, the vehicle is an electric vehicle or a hybrid vehicle, and the battery pack includes, but is not limited to, lithium-ion batteries. The battery cells 600 of the battery pack are mounted on the base plate 500, and the battery pack frame material is steel or aluminum alloy.

[0067] When a side-pillar collision occurs, the side beam structure transfers the impact force from the lower longitudinal beam 700 to the base plate 500, thereby more efficiently dispersing and absorbing collision energy in side-impact scenarios and reducing the risk of pressure on the battery cell 600. Its overall structure is simple and reliable, suitable for platform-based applications, shortening the development cycle, reducing costs, and improving the overall vehicle safety and reliability.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A side beam structure, characterized in that, include: The first beam is fixedly connected at its bottom to the base plate of the battery pack. The second beam is located on the side of the first beam away from the battery pack cells and on the lower longitudinal beam of the vehicle. The second beam is fixedly connected to the lower longitudinal beam, and the cross-sectional width of the second beam gradually increases from the side away from the first beam to the side closer to the first beam.

2. The side beam structure according to claim 1, characterized in that, The first beam includes a first component and a second component, wherein the first component is located above the second component and is fixedly connected to the second component, one side of the second component is connected to the bottom plate of the battery pack, and the other side is connected to the second beam.

3. The side beam structure according to claim 2, characterized in that, In the direction from the first beam toward the battery cell, the width of the second component is greater than the width of the first component.

4. The side beam structure according to claim 2, characterized in that, The first component and / or the second component are provided with a first inclined rib, which gradually slopes downward from one end near the second beam to the end away from the second beam.

5. The side beam structure according to any one of claims 1 to 4, characterized in that, The second beam includes: The upper outer plate is fitted to the lower longitudinal beam, and one end of the upper outer plate is fixedly connected to the first beam. A connecting plate, located below the upper outer plate, is fixedly connected at one end to the end of the upper outer plate opposite to the first beam; and The lower outer plate is located below the upper outer plate. One end of the lower outer plate is fixedly connected to the end of the connecting plate away from the upper outer plate, and the other end of the lower outer plate is fixedly connected to the first beam. The lower outer plate gradually tilts away from the upper outer plate from the end near the connecting plate to the end away from the connecting plate.

6. The side beam structure according to claim 5, characterized in that, The second beam also includes: The first transverse connecting bar is located between the upper outer plate and the lower outer plate, and is arranged parallel to and spaced apart from the upper outer plate. One end of the first transverse connecting bar is connected to the connecting plate, and the other end is connected to the first beam.

7. The side beam structure according to claim 6, characterized in that, Also includes: A sleeve, which is fixedly connected to the upper outer plate and the first transverse connecting rib; A fixing bolt is inserted through the sleeve and connected to the lower longitudinal beam.

8. The side beam structure according to claim 7, characterized in that, The lower outer plate is provided with a through hole, which is positioned opposite to the fixing bolt.

9. The side beam structure according to claim 6, characterized in that, The second beam also includes: The second inclined rib connects the upper outer plate and the first transverse connecting rib. The second inclined rib gradually inclines from the end connected to the upper outer plate to the end connected to the first transverse connecting rib towards the direction of the first beam.

10. A vehicle, characterized in that, include: The vehicle body includes a lower longitudinal beam; A battery pack, comprising a frame, cells, and a base plate, wherein the frame includes a side beam structure as described in any one of claims 1 to 9.

Images