Cross beam, frame and vehicle

Abstract

The utility model relates to the technical field of vehicles, and provides a cross beam, a frame and a vehicle, the cross beam comprises connecting assemblies and a cross beam body, the connecting assemblies are used for being connected with external structural parts, the two opposite ends of the cross beam body are connected with the connecting assemblies, and the cross beam body is provided with a first bottom face; at least part of the connecting assembly protrudes out of the first bottom face along the side towards which the first bottom face faces, an avoiding area is defined by the connecting assembly and the area of one side of the first bottom face, and the cross beam body is provided with a first reinforcing structure. According to the scheme, the problem that in the prior art, due to the fact that the height of the frame cross beam is large, the space where the battery pack can be arranged is limited, and the capacity of the configurable battery pack of the vehicle is limited can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a cross beam, a vehicle frame and a vehicle. BACKGROUND

[0002] With the rapid development of new energy, electric vehicles are being used more and more widely. The power battery is an important component of an electric vehicle, and the arrangement of the power battery is a key factor in the design of an electric vehicle, which affects the performance, safety and space utilization efficiency of the vehicle.

[0003] Common arrangement modes of the power battery include a middle arrangement mode and a two-side arrangement mode.

[0004] In the middle arrangement mode, the power battery is usually connected to the middle of the vehicle frame, and the battery pack is located below the vehicle frame, part of the area being opposite to the cross beam of the vehicle frame. Since the height of the cross beam is large (approximately equal to the height of the vehicle frame), and because the design of the vehicle needs to ensure that the ground clearance of the chassis meets certain requirements, the space available for arranging the battery pack in the height direction is small, which limits the size of the battery pack, and thus limits the capacity of the battery pack, making it difficult to meet the user's requirements for the vehicle's range. CONTENT OF THE INVENTION

[0005] Therefore, the present application provides a cross beam, a vehicle frame and a vehicle to solve the problem that the height of the cross beam of the vehicle frame is large, which limits the space available for arranging the battery pack, and thus limits the capacity of the battery pack that can be configured in the vehicle.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] A cross beam, comprising:

[0008] A connecting assembly for connecting an external structural member;

[0009] A cross beam body, opposite ends of the cross beam body being connected with the connecting assemblies, the cross beam body having a first bottom surface, at least part of the connecting assemblies protruding from the first bottom surface along a side of the first bottom surface facing the connecting assemblies, and forming an avoidance area with a side area of the first bottom surface, the cross beam body having a first reinforcing structure.

[0010] Optionally, the cross beam body is a plate-shaped structure.

[0011] Optionally, the first reinforcing structure comprises a first protruding portion and first recessed portions located on opposite sides of the first protruding portion.

[0012] Optionally, the first protruding part and the first recessed part adjacent to the first protruding part are connected by a curved surface; and / or, along the extension direction of the first protruding part, the width of the middle part of the first protruding part is greater than the width of the two ends of the first protruding part.

[0013] Optionally, the connecting assembly comprises a first connecting piece, the first connecting piece comprises a first bending part and a second bending part connected in a bending shape, the first bending part is connected to the beam body in a lap joint manner, and the second bending part is used for connecting an external structural member.

[0014] Optionally, the first connecting piece has a second reinforcing structure, the second reinforcing structure comprises a second protruding part and second recessed parts located on two sides opposite to the second protruding part.

[0015] Optionally, the part of the second protruding part located on the first bending part protrudes in a direction away from the first protruding part and is oppositely arranged.

[0016] Optionally, the first bending part and the second bending part are connected by a rounded corner structure.

[0017] Optionally, the two ends of the beam body connected to the connecting assembly have a first flange, the first flange and the second bending part are located on the same side of the first bending part, and the first flange is used for connecting an external structural member.

[0018] Optionally, the connecting assembly further comprises a second connecting piece, the second connecting piece is connected to the second bending part and the first flange in a superposed manner, and the second connecting piece is used for connecting an external structural member.

[0019] Optionally, along the height direction of the beam, the second bending part comprises a first end and a second end, the first end is connected to the first bending part, and the width of the first end is smaller than the width of the second end.

[0020] Optionally, along the height direction of the beam, the top of the beam body is connected to the connecting assembly.

[0021] A vehicle frame comprising a longitudinal beam and the beam according to any one of the above-mentioned embodiments, wherein the longitudinal beam is the external structural member.

[0022] A vehicle comprising the beam according to any one of the above-mentioned embodiments, or the vehicle frame according to the above-mentioned embodiment.

[0023] In the embodiments of the present application, the beam forms an avoiding area on the side toward the first bottom surface of the beam body, and when the beam is used in a vehicle frame, at least part of the battery pack (for example, the top of the battery pack) installed on the vehicle frame can extend into the avoiding area and further extend into the inside of the beam and the vehicle frame.

[0024] Compared with the cross beam with large height and distributed on the upper and lower of the battery pack in the prior art, the cross beam with the avoiding area in the embodiment of the application additionally provides the area where the avoiding area is located as the arrangement space for the battery pack installed on the frame, thereby increasing the arrangeable area of the battery pack, solving the problem that the arrangeable space of the battery pack is limited due to the large height of the cross beam in the prior art, thereby causing the capacity of the battery pack that can be configured by the vehicle to be limited, enabling the frame to carry the large-capacity battery pack, and the large-capacity battery pack does not interfere with the cross beam, satisfying the normal use function of the frame, and enabling the vehicle to satisfy the prescribed chassis ground clearance and safety collision resistance requirements. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0026] Figure 1 Structure schematic diagram of the cross beam provided by the embodiment of the present application;

[0027] Figure 2 Front view of the cross beam provided by the embodiment of the present application;

[0028] Figure 3 Top view of the cross beam provided by the embodiment of the present application;

[0029] Figure 4 Bottom view of the cross beam provided by the embodiment of the present application;

[0030] Figure 5 Structure schematic diagram of the cross beam body and the first connecting piece provided by the embodiment of the present application;

[0031] Figure 6 Structure schematic diagram of the cross beam body provided by the embodiment of the present application;

[0032] Figure 7 Structure schematic diagram of the two first connecting pieces located at both ends of the cross beam body provided by the embodiment of the present application;

[0033] Figure 8 Side view of the first connecting piece provided by the embodiment of the present application;

[0034] Figure 9 Bottom view of the two first connecting pieces located at both ends of the cross beam body provided by the embodiment of the present application;

[0035] Figure 10Structure diagram of two second connecting members provided at two ends of the beam body for the embodiment of the present application;

[0036] Figure 11 Position relationship diagram of the beam and the battery pack provided for the embodiment of the present application;

[0037] Figure 12 Cross-section bending deformation diagram (left) and cross-section torsion deformation diagram (right) of the beam body provided for the embodiment of the present application;

[0038] Figure 13 Structure profile diagram of the first protruding part with right-angle end (upper diagram) and structure profile diagram of the first protruding part with circular-arc transition end (lower diagram) provided for the embodiment of the present application;

[0039] Figure 14 Position relationship diagram of the beam body and two first bending parts provided for the embodiment of the present application;

[0040] Figure 15 Position relationship cross-section diagram of the first protruding part and the second protruding part provided for the embodiment of the present application;

[0041] Figure 16 Interference diagram of the first connecting member with the bevel connecting part and the corner of the battery pack (left diagram) and position relationship diagram of the first connecting member with the rounded corner connecting part and the battery pack (right diagram) provided for the embodiment of the present application;

[0042] Figure 17 Structure diagram of the longitudinal beam and the second bending part provided for the embodiment of the present application;

[0043] Figure 18 Structure diagram of the longitudinal beam, the second connecting member, the first connecting member and the beam body provided for the embodiment of the present application;

[0044] Figure 19 Side view of the beam body and the first connecting member provided for the embodiment of the present application.

[0045] In Figures 1-19 , the present application provides a connecting assembly;

[0046] 100, connecting assembly; 110, first connecting member; 111, first bending part; 112, second bending part; 1121, first end; 1122, second end; 113, rounded corner structure; 114, bevel connecting part; 120, second connecting member; 121, second flange; 130, second bottom surface; 150, second protruding part; 160, second recessed part;

[0047] 200, beam body; 210, first bottom surface; 220, first protruding part; 230, first recessed part; 240, curved surface; 250, first flange;

[0048] 300, avoidance area;

[0049] 400, battery pack;

[0050] 500, longitudinal beam. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0052] In the prior art, the beam of the vehicle frame usually includes a channel beam, a rectangular tube beam, a round tube beam and an I-beam. The upper and lower surfaces of the beam are attached to the upper and lower wing surfaces of the longitudinal beam of the vehicle frame. In the key load bearing and force transmission path, sufficient support stiffness can be provided, especially in improving the torsional performance of the vehicle frame.

[0053] However, the height direction of the above-mentioned various beams is relatively large, so that the space available for arranging the battery pack in the height direction of the vehicle is small, so that the size of the battery pack is limited, thereby limiting the capacity of the battery pack (the size of the appearance size (length, width and height) of the battery pack is determined according to the capacity). Specifically, when the beam in the prior art matches the middle-mounted pure electric large-capacity battery pack (large-capacity battery is 100kWh or more), there is interference between the upper end surface of the large-capacity battery pack and the beam, which cannot meet the normal use function of the vehicle frame, and cannot meet the chassis ground clearance and safety impact requirements. As a fallback, only a small-capacity battery pack (small-capacity battery is 81kWh or less) can be carried, so the prior art solution cannot meet the current large-capacity high-range structure design requirements, i.e. it cannot meet the user, scene and market use requirements.

[0054] As shown in Figures 1-19 The embodiments of the present application provide a beam, which can be used for a vehicle frame, and can also be used for other components of a vehicle, such as a body frame and the like. The beam in the embodiments of the present application includes a connecting assembly 100 and a beam body 200.

[0055] The connecting assembly 100 is used to connect an external structure. When the beam is used for a vehicle frame, the external structure can be a longitudinal beam 500 of the vehicle frame.

[0056] The opposite ends of the beam body 200 are connected with the connecting assemblies 100, as shown in Figure 1 andFigure 2 As shown, two connecting assemblies 100 can be connected at two ends of the beam body 200 along the length direction b. The beam body 200 has a first bottom surface 210, which refers to the plane of the beam body 200 closest to the ground, i.e., the lowest plane in the direction of gravity. The connecting assembly 100 has a second bottom surface 130, which refers to the plane of the connecting assembly 100 closest to the ground, i.e., the lowest plane in the direction of gravity. At least part of the connecting assembly 100 protrudes from the first bottom surface 210 along the side to which the first bottom surface 210 faces, and forms an avoidance area 300 with the side area of the first bottom surface 210, that is, the second bottom surface 130 of the connecting assembly 100 is located on the side of the first bottom surface 210 that forms the avoidance area 300.

[0057] The beam body 200 has a first reinforcing structure to improve the structural strength of the beam body 200.

[0058] In the embodiments of the present application, the beam forms the avoidance area 300 on the side of the first bottom surface 210 of the beam body 200. When this beam is used in the frame of a vehicle, as shown, Figure 11 At least part of the battery pack 400 (for example, the top of the battery pack 400) can extend into the avoidance area 300, and further extend into the interior of the beam and the frame.

[0059] Compared with the beam in the prior art, which has a large height and is distributed above and below the battery pack, the beam with the avoidance area 300 in the embodiments of the present application additionally provides the area where the avoidance area 300 is located as a layout space for the battery pack 400 installed on the frame, thereby increasing the layout area of the battery pack 400, enabling the frame to carry a large-capacity battery pack 400, and the large-capacity battery pack 400 not interfering with the beam, satisfying the normal use function of the frame, and enabling the vehicle to satisfy the specified undercarriage ground clearance and safety impact resistance requirements.

[0060] The battery pack 400 is usually connected to the frame through a battery mounting bracket. The beam in the embodiments of the present application provides a larger power battery compatible space, enabling at least part of the large-capacity battery pack to enter the interior space of the frame, and the vertical height of the battery mounting bracket to be shortened, and further enabling the large-capacity battery pack in this layout state to compensate for the stiffness of the frame itself, satisfying the basic frame stiffness performance, and achieving the purpose of reducing costs and increasing efficiency.

[0061] In further technical solutions, the beam body 200 can be a plate structure, for example, a horizontal single straight plate structure, to reduce the size of the beam body 200 in the height direction a (in the case of using the beam in the frame and installing the battery pack 400 on the frame, the height direction a is consistent with the direction from the beam body 200 to the battery pack 400), thereby providing a larger assembly layout space for the battery pack 400.

[0062] As shown in Figure 11 from the perspective of engineering application, the beam body 200 can provide a larger arrangement space for the battery pack 400.

[0063] Of course, in other alternative embodiments, the beam body 200 can also be other shapes of structures, such as a tubular structure.

[0064] In a further technical solution, along the height direction a of the beam, the beam body 200 can be connected to the top of the connecting assembly 100, where the top of the connecting assembly 100 refers to the end of the connecting assembly 100 away from the second bottom surface 130 along the height direction a. In this structure, the beam body 200 is away from the second bottom surface 130 of the connecting assembly 100, increasing the distance between the first bottom surface 210 of the beam body 200 and the second bottom surface 130 of the connecting assembly 100 in the height direction a, thereby increasing the size of the avoidance area 300 in the height direction a, providing a larger assembly arrangement space for the battery pack 400.

[0065] Of course, in other alternative embodiments, along the height direction a of the beam, the beam body 200 can also be connected to the middle of the connecting assembly 100.

[0066] In the foregoing, in order to improve the structural strength of the beam body 200, the beam body 200 has a first reinforcing structure, which in an alternative embodiment can be a reinforcing rib.

[0067] In another alternative embodiment, the first reinforcing structure can include a first protruding portion 220 and first recessed portions 230 located on the two sides opposite the first protruding portion 220. In this case, the first protruding portion 220 forms a height difference with the two first recessed portions 230, improving the bending and torsional stiffness of the beam body 200. In this way, the structural reinforcement effect of the beam body 200 is achieved through the structural design of the beam body 200 itself, without the need for additional reinforcing structures such as reinforcing ribs, saving costs.

[0068] Specifically, the first protruding portion 220 and the first recessed portions 230 can extend along the length direction b of the beam body 200, and the first protruding portion 220 can be formed by recessing towards the avoidance area 300 through the two first recessed portions 230. Optionally, the number of first protruding portions 220 can be one or more, which is not limited by the present application.

[0069] As shown in Figure 12As shown, the structural profile of the beam body 200 has a raised rib (i.e. the first raised portion 220) in the middle and a step surface with a height difference with the edge (i.e. the first recessed portion 230). According to the structural mechanical properties, the raised rib has a strong resistance to bending and torsional deformation, i.e. a high bending and torsional stiffness (after deformation under external force, it can still maintain a raised shape).

[0070] The first raised portion 220 and the first recessed portion 230 can be connected in various ways. In an alternative embodiment, the first raised portion 220 and the first recessed portion 230 adjacent thereto can be connected by a flat surface. Along the extension direction of the first raised portion 220, the width of the first raised portion 220 can be equal everywhere, so that the four corners of the first raised portion 220 present right-angled ends.

[0071] In another alternative embodiment, the first raised portion 220 and the first recessed portion 230 adjacent thereto can be connected by a curved surface 240. Along the extension direction of the first raised portion 220, the width of the middle part of the first raised portion 220 can be greater than the width of the two ends of the first raised portion 220, so that the four corners of the first raised portion 220 present a shape similar to a circular-arc chamfer. In this structure, the raised portion 220 is provided with a slope or an arc at the closing position of the raised rib (i.e. the first raised portion 220), so that the position stiffness of the four corners of the first raised portion 220 is continuously transitioned, improving the stress concentration (compared to the structure in which the four corners present right-angled ends, Figure 13 the structure in which the four corners present a circular-arc chamfer shape, the problem of stress concentration can be improved). Figure 13

[0072] It should be noted that the width of the first raised portion 220 refers to the dimension of the first raised portion 220 in the width direction c.

[0073] The connecting assembly 100 can include a first connecting piece 110, which can include a first bent portion 111 and a second bent portion 112 connected in a bent shape. The first bent portion 111 is connected to the beam body 200 in a lap joint manner. The first bent portion 111 and the beam body 200 can be connected by bolt connection or welding, etc. In the case where the first bent portion 111 and the beam body 200 are connected by bolts, both the first bent portion 111 and the beam body 200 are provided with bolt holes for cooperating with the bolts. The lap joint area of the two can have a width of about 2 bolt hole positions (about 80 mm). The second bent portion 112 is used to connect external structural members. The second bent portion 112 can be connected to the external structural members by bolt connection, etc.

[0074] In this case, as shown in Figure 2 and Figure 14 ​As shown, the first connecting piece 110 has a certain overlap area with the mounting plane of the beam body 200, and the first bent portion 111 extends towards the inside (the vehicle Y direction, the length direction b of the beam) from the horizontal overlap surface of the beam body 200, thereby providing sufficient support stiffness for the vehicle Y direction and the length direction b of the beam, and the middle area of the first bent portion 111 of the two connecting assemblies 100 is disconnected, which can achieve weight reduction and help the lightweight design of the beam.

[0075] Of course, in other optional embodiments, the first connecting piece 110 can be a straight plate structure, and one end of the straight plate structure can be connected to the beam body 200 by bolt connection or welding.

[0076] In order to improve the structural strength of the first connecting piece 110, the first connecting piece 110 can have a second reinforcing structure. In an optional embodiment, the second reinforcing structure can be a reinforcing rib.

[0077] In another optional embodiment, the second reinforcing structure can include a second protruding portion 150 and a second recessed portion 160 located on the two sides opposite to the second protruding portion 150. In this case, the structural reinforcing effect of the first connecting piece 110 is achieved by the self-structure design of the first connecting piece 110, without the need for additional reinforcing ribs or other reinforcing structures, thereby saving costs.

[0078] The part of the second protruding portion 150 located at the first bent portion 111 can be protruded towards the direction away from each other and oppositely arranged with the first protruding portion 220, and the width of the second protruding portion 150 and the first protruding portion 220 can be the same, as shown in Figure 15 As shown, the part of the second protruding portion 150 located at the first bent portion 111 and the first protruding portion 220 form an approximately closed box-shaped cavity. This structure has strong bending and torsion resistance and can improve the bending and torsion stiffness of the beam.

[0079] In an optional embodiment, one end of the first bent portion 111 can directly abut on the second bent portion 112.

[0080] In an optional embodiment, the first connecting piece 110 can further include a bevel connecting portion 114, and the two opposite ends of the bevel connecting portion 114 are connected with the first bent portion 111 and the second bent portion 112 respectively, so that the first bent portion 111, the bevel connecting portion 114 and the second bent portion 112 are sequentially connected to form the first connecting piece 110. The first connecting piece 110 with the bevel connecting portion 114 is connected with the second connecting piece 120 (see below) to form a triangular (or similar to a triangular) structure (see Figure 16The triangular structure is stable, and helps to improve the overall rigidity of the cross beam. However, the first connecting member 110 of this structure cooperates with the cross beam body 200 to form a limited space of the avoidance area 300, and when the battery pack 400 is assembled, the corner of the battery pack 400 is likely to interfere with the inclined surface connecting portion 114, so that the size of the configurable battery pack 400 is limited.

[0081] Therefore, in another alternative embodiment, the first bending portion 111 and the second bending portion 112 can be connected by a chamfered structure 113, which can be a 45° chamfer. This structure can not only improve the overall rigidity of the cross beam, but also avoid the corner of the battery pack 400, and provide a larger assembly space for the battery pack 400 (see the right side of FIG. 1). Figure 16

[0082] In a further technical solution, the two ends of the cross beam body 200 connected to the connecting assembly 100 can have a first flange 250, the first flange 250 and the second bending portion 112 are located on the same side of the first bending portion 111, and the first flange 250 extends along the height direction a towards the direction close to the second bottom surface 130, and the first flange 250 is used to connect the external structural member. This structure can improve the connection strength of the cross beam body 200 and the external structural member.

[0083] The second bending portion 112 and the first flange 250 can be provided with bolt holes, and the external structural member can be provided with bolt holes, and the second bending portion 112 and the first flange 250 can be connected to the external structural member (such as the longitudinal beam 500 of the vehicle frame) by bolts. In this structure, as shown in FIG. 2, the second bending portion 112 can be directly connected to the longitudinal beam 500 of the vehicle frame, so that the second bending portion 112 and the longitudinal beam 500 of the vehicle frame have a larger mounting contact surface, which improves the connection stiffness between the first connecting member 110 and the longitudinal beam 500, and further improves the attachment point strength fatigue performance. Figure 17

[0084] In the embodiments of the present application, the connecting assembly 100 can further include a second connecting member 120, the second connecting member 120 can be connected to the second bending portion 112 and the first flange 250 in a stacked manner, and the second connecting member 120 is used to connect the external structural member. In this structure, the mounting of the cross beam and the longitudinal beam 500, the second connecting member 120 as a reinforced connection of the cross beam and the longitudinal beam 500, can improve the connection stiffness of the cross beam and the longitudinal beam 500 attachment point, and can strengthen the strength fatigue durability.

[0085] Specifically, as shown in FIG. 3, the second connecting member 120 can be a plate-shaped structure, and the second connecting member 120 can be connected to the second bending portion 112 and the first flange 250 in a stacked manner. Figure 18 ​​As shown, the second connecting piece 120 and the first connecting piece 110, the beam body 200 can be combined to form an approximately closed cavity (mainly including the chamfered structure 113 and the space surrounded by the beam body 200 and the second connecting piece 120), so that the local area stiffness of the vehicle frame is improved; the second connecting piece 120 is installed and attached to the longitudinal beam 500 of the vehicle frame, the contact surface is increased, and the thickness of the plate material at the position of the beam is increased by adding the second connecting piece 120, the connection stiffness is improved, and the structure is particularly important in the key transmission path suspension support arrangement area, which can greatly strengthen the strength fatigue performance.

[0086] Optionally, the first flange 250, the second bending part 112 and the second connecting piece 120 can be provided with bolt holes, and the longitudinal beam 500 of the vehicle frame can also be provided with bolt holes. When the beam and the longitudinal beam 500 are connected, part of the bolts pass through the longitudinal beam 500 of the vehicle frame, the second connecting piece 120 and the second bending part 112 to connect the longitudinal beam 500 of the vehicle frame and the beam, and part of the bolts pass through the longitudinal beam 500 of the vehicle frame, the second connecting piece 120 and the first flange 250 to connect the longitudinal beam 500 of the vehicle frame and the beam.

[0087] The opposite ends of the second connecting piece 120 can be provided with second flanges 121, and in the height direction a, the two second flanges 121 are located outside the first connecting piece 110 and the beam body 200, and the two second flanges 121 can be respectively attached to the upper and lower wing surfaces of the longitudinal beam 500.

[0088] In the embodiment of the application, along the height direction a of the beam, the second bending part 112 can include a first end 1121 and a second end 1122, the first end 1121 is connected with the first bending part 111, and the width of the first end 1121 can be smaller than the width of the second end 1122, that is, the second bending part 112 is a trapezoid with narrow upper part and wide lower part, as shown in Figure 19 As shown, the width of the first end 1121 can be consistent with the width of the beam body 200 (good stiffness continuity), and the width of the second end 1122 is increased, so that the connection stiffness and the attachment point strength fatigue performance of the beam and the external structural member (for example, the longitudinal beam 500) are further improved.

[0089] Based on the above-mentioned beam, the embodiment of the application further provides a vehicle frame, which comprises a longitudinal beam 500 and the above-mentioned beam, and the longitudinal beam 500 is the above-mentioned external structural member. Since the vehicle frame has the above-mentioned beam, the beneficial effects of the vehicle frame brought by the beam are described above, and will not be repeated here.

[0090] The vehicle frame can include two longitudinal beams 500, and the two longitudinal beams 500 can be arranged at intervals, and the two connecting assemblies 100 at the two ends of the beam are connected with the two longitudinal beams 500 to form the vehicle frame.

[0091] The frame can include a plurality of cross beams, among which, at least the cross beams opposite to the battery pack 400 adopt the cross beam with the above structure, and the cross beams not opposite to the battery pack 400 can adopt the cross beam with the above structure or other structures.

[0092] Based on the above cross beam or the above frame, the embodiment of the present application further provides a vehicle, which can be a pure electric large-capacity battery middle-mounted light truck, and the power battery is arranged in a middle-mounted manner. Of course, the vehicle can also be other models, and the present application does not limit this. Since the vehicle includes the above cross beam or the above frame, the beneficial effects of the vehicle brought by the cross beam or the frame are described above, and will not be described here.

[0093] The basic principles of the present application are described above in combination with specific embodiments, but it should be pointed out that the advantages, advantages, effects and the like mentioned in the present application are only examples and not limitations, and these advantages, advantages, effects and the like cannot be considered as the must-have of each embodiment of the present application. In addition, the above disclosed specific details are only for the purpose of example and understanding, and are not limited to the above specific details. The above details do not limit the present application to be necessarily implemented with the above specific details.

[0094] The block diagram of the device, apparatus, equipment, system involved in the present application is only an illustrative example and is not intended to require or imply that the connection, arrangement and configuration shown in the block diagram must be connected, arranged and configured. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged and configured in any way. Words such as "include", "contain", "have" and the like are open-ended words, which mean "include but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0095] It should also be noted that in the device, apparatus and method of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombination should be considered as equivalent solutions of the present application.

[0096] The above description of the disclosed aspects is provided so that any person skilled in the art can make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is intended to be in accordance with the widest scope consistent with the principles and novel features disclosed herein.

[0097] It should be understood that the limiting words "first", "second", "third", "fourth", "fifth" and "sixth" used in the embodiments of the present application are only used for more clearly explaining the technical solutions, and cannot be used to limit the protection scope of the present application.

[0098] The above description is given for the purpose of illustration and description. Furthermore, this description does not intend to limit the embodiments of the present application to the forms disclosed herein. Although several example aspects and embodiments have been discussed above, those of ordinary skill in the art will appreciate a variety of modifications, alternatives, permutations, additions, and sub-combinations of the described aspects and embodiments.

Claims

1. A cross member characterized by, The utility model relates to a connecting assembly (100) for connecting external structural members, a beam body (200) having opposite ends connected with the connecting assembly (100), the beam body (200) having a first bottom surface (210), at least part of the connecting assembly (100) protruding from a side of the first bottom surface (210) and forming an avoidance area (300) with a side area of the first bottom surface (210), and the beam body (200) having a first reinforcing structure. The beam body (200) is a plate structure. The first reinforcing structure includes a first protruding portion (220) and first recessed portions (230) located on opposite sides of the first protruding portion (220).

2. The crossbeam of claim 1, wherein, The first protruding portion (220) and the first recessed portions (230) adjacent thereto are connected by a curved surface (240), and / or the width of the middle part of the first protruding portion (220) is greater than the width of the two ends of the first protruding portion (220) along the extension direction of the first protruding portion (220).

3. The crossbeam of claim 1, wherein, The connecting assembly (100) includes a first connecting member (110) including a first bent portion (111) and a second bent portion (112) connected in a bent shape, the first bent portion (111) being connected to the beam body (200) in a lap joint manner, and the second bent portion (112) being used for connecting external structural members.

4. The crossbeam of claim 3, wherein, The first connecting member (110) has a second reinforcing structure including a second protruding portion (150) and second recessed portions (160) located on opposite sides of the second protruding portion (150).

5. The crossbeam of claim 3, wherein, The part of the second protruding portion (150) located at the first bent portion (111) protrudes in a direction away from the first protruding portion (220) and is oppositely arranged.

6. The crossbeam of claim 5, wherein, The first bent portion (111) and the second bent portion (112) are connected by a rounded corner structure (113).

7. The crossbeam of claim 6, wherein, The two ends of the beam body (200) connected with the connecting assembly (100) have a first flange (250), the first flange (250) and the second bent portion (112) are located on the same side of the first bent portion (111), and the first flange (250) is used for connecting external structural members.

8. The crossbeam of claim 5, wherein, The connecting assembly (100) further includes a second connecting member (120) stacked and connected to the second bent portion (112) and the first flange (250), and the second connecting member (120) is used for connecting external structural members.

9. The crossbeam of claim 8, wherein, Along the height direction (a) of the beam, the second bent portion (112) includes a first end (1121) and a second end (1122), the first end (1121) is connected to the first bent portion (111), and the width of the first end (1121) is smaller than the width of the second end (1122).

10. The crossbeam of claim 9, wherein, Along the height direction (a) of the beam, the top of the beam body (200) is connected with the connecting assembly (100).

11. The crossbeam of claim 5, wherein, ​ 12. Beam according to claim 1 or 2, characterized in that ​ 13. A vehicle frame, characterized by A longitudinal beam (500) comprising the cross beam according to any one of claims 1 to 12, the longitudinal beam (500) being the outer structural member.

14. A vehicle characterized by comprising: A vehicle frame comprising the cross beam according to any one of claims 1 to 12, or the vehicle frame according to claim 13.

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