Squeezing beam structure of vehicle, vehicle chassis and vehicle

Abstract

The utility model relates to the technical field of vehicle chassis, in particular to an extrusion beam structure of a vehicle, a vehicle chassis and the vehicle. The extrusion beam structure comprises a first beam body provided with a first cavity, and the first beam body comprises a plurality of side walls forming the first cavity in a surrounding mode; the second beam body is inserted into the first cavity and is connected with the first beam body; wherein at least one side wall of the first beam body and the second beam body are arranged in a spaced mode, and at least two adjacent side walls of the first beam body and the second beam body are arranged in a stacked mode. The extrusion beam structure provided by the utility model has higher structural strength and good collision safety performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle chassis, and in particular to a vehicle extruded beam structure, a vehicle chassis and a vehicle. BACKGROUND

[0002] The slide plate chassis is a kind of vehicle chassis structure that integrates the battery, the electric drive system, the suspension and other components in advance. The slide plate chassis can provide a lower vehicle center of gravity and better handling performance, and is widely used in electric vehicles, autonomous vehicles and various special vehicles.

[0003] In related technologies, the slide plate chassis usually includes an extruded beam structure, which usually includes longitudinal beams and cross beams. The longitudinal beams and the cross beams extend along the front-rear direction and the left-right direction of the vehicle, respectively, and are connected to each other to support and protect the key components of the vehicle.

[0004] However, the structural strength of the extruded beam structure is low, which affects the crash safety performance of the slide plate chassis. Utility model content

[0005] The present application provides a vehicle extruded beam structure, a vehicle chassis and a vehicle to solve the problem of low structural strength of the extruded beam structure, which affects the crash safety performance of the slide plate chassis.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0007] In a first aspect, the present application provides a vehicle extruded beam structure, which includes: a first beam body having a first cavity, the first beam body including a plurality of side walls surrounding the first cavity; and a second beam body inserted and connected to the first beam body in the first cavity. At least one side wall of the first beam body is spaced apart from the second beam body, and at least two adjacent side walls of the first beam body are stacked with the second beam body.

[0008] In a possible implementation, the extruded beam structure provided by the present application has each side wall stacked with the second beam body connected to the second beam body.

[0009] In a possible implementation, the extruded beam structure provided by the present application further includes a connecting piece inserted and fixed between the side wall and the second beam body to fix the relative position of the side wall and the second beam body.

[0010] In a possible implementation, the extruded beam structure provided in the present application, the first beam body comprises a first side wall and a second side wall which are spaced apart and arranged oppositely along a first direction, and a third side wall and a fourth side wall which are spaced apart and arranged oppositely along a second direction, the third side wall and the fourth side wall are connected between the first side wall and the second side wall respectively, the second beam body is arranged spaced apart from the first side wall and the fourth side wall and is arranged laminated with the second side wall and the third side wall, the first direction and the second direction intersect.

[0011] In a possible implementation, the extruded beam structure provided in the present application, the second beam body has an inner cavity, and the extruded beam structure further comprises a connecting rib assembly, the connecting rib assembly comprises at least two connecting ribs, the at least two connecting ribs are arranged spaced apart from the inner cavity and are connected with the second beam body respectively.

[0012] In a possible implementation, the extruded beam structure provided in the present application, one of the connecting ribs close to the third side wall is used to divide the second beam body into a first beam segment and a second beam segment, the second beam segment is arranged close to the third side wall relative to the first beam segment, and a filler is arranged in the second beam segment, the filler is arranged close to the second side wall relative to the first side wall.

[0013] In a possible implementation, the extruded beam structure provided in the present application, the first beam body and the second beam body extend along the same direction, and the extension length of the second beam body is greater than the extension length of the first beam body.

[0014] In a possible implementation, the extruded beam structure provided in the present application, the first beam body is provided with a first positioning member, the second beam body is provided with a second positioning member, and the first positioning member and the second positioning member are arranged correspondingly.

[0015] In a possible implementation, the extruded beam structure provided in the present application, the third side wall is provided with a connecting portion, and the connecting portion extends to at least part of the filler along the second direction.

[0016] In a possible implementation, the extruded beam structure provided in the present application, the third side wall is provided with a connecting portion, and the connecting portion extends to at least part of the filler along the second direction.

[0017] In a possible implementation, the extruded beam structure provided in the present application, the third side wall is provided with a connecting portion, and the connecting portion extends to at least part of the filler along the second direction.

[0018] The extrusion beam structure of the vehicle, the vehicle chassis and the vehicle provided by the application, the extrusion beam structure comprises a first beam body and a second beam body. By inserting the second beam body into the first cavity of the first beam body and stacking the at least two adjacent side walls of the first beam body and the second beam body, the strength of the extrusion beam structure can be improved. Meanwhile, on the side of the extrusion beam structure which is prone to collision, the at least one side wall of the first beam body is spaced apart from the second beam body, so that when the extrusion beam structure is collided, the first beam body can better collapse to absorb energy, and when the collapse reaches a certain degree, the displacement of the extrusion beam structure can be reduced by the supporting effect of the second beam body, so that the strength of the extrusion beam structure is improved, thereby improving the collision safety performance. BRIEF DESCRIPTION OF DRAWINGS

[0019] 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. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The structural schematic diagram of the extrusion beam structure provided by the embodiment of the present application;

[0021] Figure 2 The partial structural schematic diagram of the extrusion beam structure provided by the embodiment of the present application;

[0022] Figure 3 The structural schematic diagram of another view of Figure 1

[0023] Figure 4 The partial structural schematic diagram of the vehicle chassis provided by the embodiment of the present application;

[0024] Figure 5 The connection schematic diagram of the extrusion beam structure and the battery pack provided by the embodiment of the present application.

[0025] Explanation of reference signs:

[0026] 10-extrusion beam structure;

[0027] 100-first beam body;

[0028] 110-first cavity;

[0029] 120a-first side wall; 120b-second side wall; 120c-third side wall; 120d-fourth side wall;

[0030] 130-first positioning member;

[0031] 140-connection part;​

[0032] 200 - second beam body; 210 - first beam segment; 220 - second beam segment; 230 - filler;

[0033] 300 - connecting rib assembly; 310 - connecting rib;

[0034] 400 - connecting hole;

[0035] 20 - cross beam;

[0036] 30 - accommodating cavity;

[0037] 40 - battery pack;

[0038] X - first direction; Y - second direction; Z - third direction.

[0039] The specific embodiments of the present application have been shown and described in the above drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application in any way, but to explain the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings of the preferred embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0041] It should be noted that in the description of the embodiments of the present application, the terms indicating the orientation or position relationship such as "upper", "lower", "inner", "outer" and the like are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description, and do not indicate or imply that the device or component must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0042] In addition, it should also be noted that the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, so the features with "first" and "second" can explicitly or implicitly include one or more of the features, and in the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0043] In this application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection or can communicate with each other; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] The skateboard chassis is a kind of vehicle chassis structure that integrates components such as battery, electric drive system and suspension in advance. The skateboard chassis can provide a lower vehicle center of gravity and better handling performance, and is widely used in electric vehicles, autonomous vehicles and various special vehicles.

[0045] In the related art, the skateboard chassis usually includes an extruded beam structure, which usually includes longitudinal beams and transverse beams. The longitudinal beams and the transverse beams extend along the front-rear direction and the left-right direction of the vehicle, respectively, and are connected to each other to support and protect the key components of the vehicle. However, the structural strength of the extruded beam structure is low at present, thereby affecting the crash safety performance of the skateboard chassis.

[0046] Therefore, the extruded beam structure of the vehicle, the vehicle chassis and the vehicle provided in the present application are provided. The extruded beam structure includes a first beam body and a second beam body. By inserting the second beam body into the first cavity of the first beam body, and stacking the at least two adjacent side walls of the first beam body and the second beam body, the strength of the extruded beam structure can be improved. At the same time, at the side of the extruded beam structure that is easily subjected to collision, the at least one side wall of the first beam body is spaced apart from the second beam body. Thus, when the extruded beam structure is subjected to collision, the first beam body can better collapse to absorb energy through the spacing. When the collapse reaches a certain degree, the displacement of the extruded beam structure can be reduced by the supporting action of the second beam body. Thus, the strength of the extruded beam structure is improved, thereby improving the crash safety performance.

[0047] The present application will be described in detail below in conjunction with the drawings and specific embodiments.

[0048] Referring to Figures 1 to 5 The present application provides an extruded beam structure 10 of a vehicle, which can include a first beam body 100 and a second beam body 200. The first beam body 100 has a first cavity 110, and the first beam body 100 includes a plurality of side walls surrounding the first cavity 110. The second beam body 200 is inserted into the first cavity 110 and connected to the first beam body 100. At least one side wall of the first beam body 100 is spaced apart from the second beam body 200, and at least two adjacent side walls of the first beam body 100 are stacked with the second beam body 200.

[0049] In a specific implementation, the first beam body 100 can include a plurality of side walls connected in sequence to enclose the first cavity 110. Optionally, the first beam body 100 can include four, five or more side walls. The shape of the side walls can be planar, and the specific shape depends on the design requirements of the first cavity 110. For example, a rectangular cavity requires four planar side walls. The first beam body 100 can be provided as an integral molded part, which facilitates production and processing.

[0050] In some embodiments, the second beam body 200 is inserted into the first cavity 110 of the first beam body 100 and is stably connected with the first beam body 100. By providing the second beam body 200, the structural strength and stability of the extruded beam structure 10 can be enhanced. Optionally, the first beam body 100 and the second beam body 200 can be made of aluminum material. Of course, the present embodiment is not limited thereto, and the first beam body 100 and the second beam body 200 can be made of the same material or different materials.

[0051] For example, the thickness of the side walls of the first beam body 100 can be set to any value in the range of 3mm-4mm, and of course the two end values of 3mm and 4mm are also included. The thickness of the side walls of the second beam body 200 can also be set to 3mm-4mm.

[0052] In addition, at least one side wall of the first beam body 100 is spaced apart from the second beam body 200, that is, a collapse redundancy gap d is formed between the first beam body 100 and the second beam body 200. In a specific implementation, the collapse redundancy gap d can be provided on the side of the extruded beam structure 10 that is easily subjected to impact. In this way, when the extruded beam structure 10 is subjected to external pressure, for example, when it encounters an impact, the first beam body 100 can better collapse to absorb energy and disperse impact force through the collapse redundancy gap d, thereby improving the impact resistance and collision safety performance of the extruded beam structure 10.

[0053] Optionally, the collapse redundancy gap d can be formed between one side wall of the first beam body 100 and the second beam body 200, or between two adjacent side walls of the first beam body 100 and the second beam body 200. The size of the collapse redundancy gap d can be 18%-22% of the width of the first beam body 100.

[0054] It should be noted that, in order to further enhance the structural strength of the extruded beam structure 10, at least two adjacent side walls of the first beam body 100 are stacked with the second beam body 200. In this way, not only does this increase the contact area between the first beam body 100 and the second beam body 200, improving the reliability of the connection between the first beam body 100 and the second beam body 200, but also makes the extruded beam structure 10 more effective in dispersing stress when subjected to lateral force, avoiding damage caused by local overloading.

[0055] Referring to Figure 2 and Figure 3 In some embodiments, each of the side walls is connected to the second beam body 200 when being stacked with the second beam body 200.

[0056] Specifically, each of the side walls is attached to the second beam body 200 when being stacked with the second beam body 200, and then each of the side walls is connected to the second beam body 200 at multiple positions to ensure the firmness and stability of the connection between the first beam body 100 and the second beam body 200. Alternatively, the first beam body 100 and the second beam body 200 can be connected by bolt connection or riveting. In this way, the assembly efficiency between the first beam body 100 and the second beam body 200 can be improved, and the connection strength between the first beam body 100 and the second beam body 200 can also be improved.

[0057] Referring to Figure 1 In some embodiments, the extruded beam structure 10 further comprises a connecting piece, which is inserted into the side wall and the second beam body 200 and fixes the relative position of the side wall and the second beam body 200.

[0058] It can be understood that the connecting piece can achieve firm connection of the first beam body 100 and the second beam body 200 by insertion. The connecting hole 400 is first formed on the first beam body 100 and the second beam body 200, and then the connecting piece is inserted into the first beam body 100 and the second beam body 200. This not only simplifies the assembly process and improves the production efficiency, but also effectively avoids the problem of unstable structure caused by looseness or displacement, thereby ensuring the stability and durability of the extruded beam structure 10.

[0059] In addition, the connecting hole 400 can be formed on at least two adjacent side walls of the first beam body 100 and the second beam body 200, and then the connecting piece is installed. In this way, the connection strength between the first beam body 100 and the second beam body 200 can be improved.

[0060] Alternatively, the connecting piece can include at least one of a bolt and a rivet, and in addition, the connecting piece can be provided in multiple numbers and be spaced apart on the first beam body 100 and the second beam body 200. This can improve the connection strength between the first beam body 100 and the second beam body 200.

[0061] Referring to Figure 3In some embodiments, the first beam body 100 comprises a first side wall 120a and a second side wall 120b spaced apart and arranged opposite along a first direction X, and a third side wall 120c and a fourth side wall 120d spaced apart and arranged opposite along a second direction Y, the third side wall 120c and the fourth side wall 120d being connected between the first side wall 120a and the second side wall 120b respectively, the second beam body 200 being arranged spaced apart from the first side wall 120a and the fourth side wall 120d and stacked with the second side wall 120b and the third side wall 120c, the first direction X and the second direction Y intersecting.

[0062] The first direction X can be understood as the width direction of the first beam body 100, and the second direction Y can be understood as the height direction of the first beam body 100.

[0063] In a specific implementation, the first beam body 100 comprises the first side wall 120a and the second side wall 120b spaced apart and arranged opposite along the width direction of the first beam body 100, thereby providing longitudinal support for the first beam body 100. The first beam body 100 is provided with the third side wall 120c and the fourth side wall 120d spaced apart and arranged opposite along the height direction of the first beam body 100. The third side wall 120c and the fourth side wall 120d connect the first side wall 120a and the second side wall 120b together, so that the first beam body 100 forms a quadrilateral frame. Such arrangement enhances the overall rigidity of the first beam body 100 and also provides convenience for subsequent assembly and connection.

[0064] The second beam body 200 is stacked with the second side wall 120b and the third side wall 120c. Such arrangement not only increases the contact area between the first beam body 100 and the second beam body 200, improves the stability of the connection between the first beam body 100 and the second beam body 200, but also enables the extruded beam structure 10 to disperse stress more uniformly when subjected to force, thereby enhancing the load-bearing capacity of the extruded beam structure 10.

[0065] It should be noted that the second beam body 200 and the first side wall 120a and the fourth side wall 120d maintain a certain interval, that is, a collapse redundancy gap d is formed between the second beam body 200 and the first side wall 120a and the fourth side wall 120d. In actual implementation, the collapse redundancy gap d can be arranged on the side of the extruded beam structure 10 that is easily subjected to impact, so that the extruded beam structure 10 can be buffered and deformed to a certain extent through the collapse redundancy gap d when subjected to external force, thereby absorbing and dispersing the impact force and improving the impact resistance of the extruded beam structure 10. In addition, by also arranging the collapse redundancy gap d between the second beam body 200 and the fourth side wall 120d, the collapse redundancy gap d between the second beam body 200 and the fourth side wall 120d can help the first side wall 120a of the first beam body 100 to bear buffering and deformation when the first side wall 120a is subjected to external force. This arrangement not only ensures the strength and collision safety performance of the extruded beam structure 10, but also reduces the amount of material used to manufacture the second beam body 200, thereby reducing the weight of the extruded beam structure 10.

[0066] Referring to Figure 3 In some embodiments, the second beam body 200 has an inner cavity, and the extruded beam structure 10 further comprises a connecting rib assembly 300, the connecting rib assembly 300 comprising at least two connecting ribs 310, the at least two connecting ribs 310 being arranged in the inner cavity and being respectively connected with the second beam body 200.

[0067] The second beam body 200 is used to transmit and disperse loads and improve the structural strength of the extruded beam structure 10. The second beam body 200 is provided with an inner cavity, which reduces the overall weight of the second beam body 200.

[0068] In order to further enhance the structural strength of the second beam body 200 and improve the stability and durability of the structure of the extruded beam structure 10, at least two connecting ribs 310 are arranged in the inner cavity of the second beam body 200, and the connecting ribs 310 extend along the first direction X and are fixedly connected to the second beam body 200 at both ends. In addition, the connecting ribs 310 are arranged in the second direction Y. In this way, when the extruded beam structure 10 is subjected to external force, the first side wall 120a is first impacted, and the first beam body 100 is better collapsed to absorb energy through the collapse redundancy gap d. When the collapse reaches a certain degree, the second beam body 200 can play a supporting role to reduce the displacement of the extruded beam structure 10.

[0069] It can be understood that the connecting ribs 310 can be formed as an integral part with the second beam body 200. In this way, the overall rigidity and anti-deformation ability of the second beam body 200 are effectively enhanced, thereby improving the structural strength and collision safety performance of the extruded beam structure 10.

[0070] Optionally, three connecting ribs 310 can be provided, thereby improving the structural strength of the second beam body 200 without causing the extruded beam structure 10 to be too heavy.

[0071] Referring to Figure 3 In some embodiments, one of the connecting ribs 310 close to the third side wall 120c is used to divide the second beam body 200 into the first beam segment 210 and the second beam segment 220, and the second beam segment 220 is arranged close to the third side wall 120c relative to the first beam segment 210. The filler 230 is arranged in the second beam segment 220, and the filler 230 is arranged close to the second side wall 120b relative to the first side wall 120a.

[0072] In some embodiments, one of the connecting ribs 310 close to the third side wall 120c divides the second beam body 200 into the first beam segment 210 and the second beam segment 220, so that the second beam segment 220 is closer to the third side wall 120c relative to the first beam segment 210. Optionally, the height of the first beam segment 210 in the second direction Y can be 5 / 6 of the height of the second beam body 200 in the second direction Y, and the height of the second beam segment 220 in the second direction Y can be 1 / 6 of the height of the second beam body 200 in the second direction Y.

[0073] In some embodiments, in order to improve the stability and collision safety performance of the extruded beam structure 10, the filler 230 is arranged in the second beam segment 220. The filler 230 is arranged close to the second side wall 120b relative to the first side wall 120a. In this way, the strength and rigidity of the second beam segment 220 are enhanced, which helps to improve the stress distribution of the extruded beam structure 10 and protect the components arranged on the side of the second side wall 120b away from the first side wall 120a.

[0074] Optionally, the material of the filler 230 can be the same as that of the first beam body 100 and the second beam body 200. The filler 230 can be integrally formed with the second beam body 200, or the filler 230 can be filled in the second beam segment 220 of the second beam body 200 after the second beam body 200 is produced.

[0075] Referring to Figure 2 In some embodiments, the first beam body 100 and the second beam body 200 extend in the same direction, and the extension length of the second beam body 200 is greater than that of the first beam body 100.

[0076] In specific implementation, the two ends of the second beam body 200 in the extension direction thereof can protrude from the two ends of the first beam body 100 in the extension direction thereof relative to the first beam body 100. In this way, the extruded beam structure 10 can be easily connected with the components to be connected, and the strength of the extruded beam structure 10 is improved.

[0077] Referring to Figure 1In some embodiments, the first beam body 100 is provided with a first positioning member 130, and the second beam body 200 is provided with a second positioning member, and the first positioning member 130 is correspondingly arranged with the second positioning member.

[0078] In order to improve the connection efficiency between the first beam body 100 and the second beam body 200, the first beam body 100 can be provided with a first positioning member 130, and the second beam body 200 can be provided with a second positioning member. When the first beam body 100 and the second beam body 200 are connected, the first positioning member 130 and the second positioning member can be correspondingly positioned, and then the connecting member can pass through the connecting hole 400 to realize the connection between the first beam body 100 and the second beam body 200.

[0079] The first positioning member 130 and the second positioning member can be arranged on the same side as the connecting hole 400, so as to facilitate the positioning and connection of the first beam body 100 and the second beam body 200 by the worker. Of course, the present application is not limited thereto.

[0080] Referring to Figure 1 In some embodiments, the third side wall 120c is provided with a connecting portion 140, and the connecting portion 140 extends to at least part of the filler 230 along the second direction Y.

[0081] In a specific implementation, in order to facilitate the connection between the extrusion beam structure 10 and other components, for example, the connection between the extrusion beam structure 10 and the battery pack 40 of the vehicle, the third side wall 120c is provided with a connecting portion 140, and then the connecting portion 140 is inserted into the connecting portion 140, so as to realize the connection between the extrusion beam structure 10 and the battery pack 40.

[0082] It should be noted that the connecting portion 140 can be a threaded hole, and the threaded hole is arranged on the third side wall 120c and extends to at least part of the filler 230 along the second direction Y. In this way, the connection strength between the extrusion beam structure 10 and the battery pack 40 can be improved.

[0083] On the basis of the above-mentioned embodiments, referring to Figure 4 The vehicle chassis provided by the embodiments of the present application comprises a cross beam 20 and the above-mentioned extrusion beam structure 10, and the cross beam 20 extends along the first direction X. The extrusion beam structure 10 and the cross beam 20 are alternately connected to form an accommodating cavity 30, and the side wall of the first beam body 100 arranged away from the accommodating cavity 30 is spaced apart from the second beam body 200.

[0084] The extrusion beam structure 10 has been described in detail in the above-mentioned embodiments, and will not be described again here.

[0085] Optionally, the vehicle chassis can comprise a skateboard chassis.

[0086] It should be noted that the extruded beam structure 10 and the cross beam 20 can be provided as two respectively, the extruded beam structure 10 can extend along the third direction Z, the third direction Z can be understood as the length direction of the vehicle chassis. The two extruded beam structures 10 can be arranged at intervals along the first direction X, and the two cross beams 20 can be arranged at intervals along the third direction Z. The extruded beam structure 10 and the cross beam 20 are arranged alternately to enclose the accommodating cavity 30, which can be used to accommodate other components, such as the battery pack 40 of the vehicle. In specific implementation, the side wall of the first beam body 100 arranged away from the accommodating cavity 30, that is, the first side wall 120a can be arranged at intervals with the second beam body 200 to form a collapse redundancy gap d between the first beam body 100 and the second beam body 200, so that when the vehicle chassis is subjected to side collision, the first beam body 100 can better collapse to absorb energy and reduce the acceleration of the vehicle after collision. Moreover, the second beam body 200 can play a supporting role to reduce the displacement of the extruded beam structure 10 and protect the components in the accommodating cavity 30, thereby improving the collision safety performance of the vehicle chassis.

[0087] In addition, by adopting the extruded beam structure 10 provided in any of the above embodiments, the overall strength of the vehicle chassis can be improved, and the cross beam 20 does not need to be additionally arranged in the middle of the accommodating cavity 30, thereby reducing the cost and weight.

[0088] On the basis of the above embodiments, the present embodiment provides a vehicle, comprising: the above vehicle chassis; a battery pack 40 arranged in the accommodating cavity 30 and connected with the extruded beam structure 10.

[0089] Among them, the vehicle chassis has been described in detail in the above embodiments, and will not be repeated here.

[0090] In specific implementation, referring to Figure 5 The battery pack 40 can be arranged in the accommodating cavity 30, and the side of the battery pack 40 facing the extruded beam structure 10 can be fixedly connected with the extruded beam structure 10 through the connecting part 140. Optionally, the connecting part 140 can include a bolt. Thus, when the slide plate chassis is subjected to collision, the extruded beam structure 10 provided in any of the above embodiments can play a good supporting role to reduce the displacement of the extruded beam structure 10 and protect the battery pack 40 and the passenger compartment of the vehicle from being extruded.

[0091] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that; they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A crush beam structure of a vehicle, characterized by, The extruded beam structure (10) comprises: a first beam body (100) having a first cavity (110), the first beam body (100) comprising a plurality of side walls surrounding the first cavity (110); a second beam body (200) being inserted into the first cavity (110) and connected with the first beam body (100); wherein at least one side wall of the first beam body (100) is spaced apart from the second beam body (200), and at least two adjacent side walls of the first beam body (100) are stacked with the second beam body (200).

2. The extruded beam structure of claim 1, wherein, Each side wall stacked with the second beam body (200) is connected with the second beam body (200).

3. The extruded beam structure of claim 2, wherein, The extruded beam structure (10) further comprises a connecting member being inserted into the side wall and the second beam body (200) and fixing the relative position of the side wall and the second beam body (200).

4. The extruded beam structure according to any one of claims 1 to 3, characterized in that The first beam body (100) comprises a first side wall (120a) and a second side wall (120b) being spaced apart and opposite along a first direction (X), and a third side wall (120c) and a fourth side wall (120d) being spaced apart and opposite along a second direction (Y), the third side wall (120c) and the fourth side wall (120d) being connected between the first side wall (120a) and the second side wall (120b) respectively, the second beam body (200) being spaced apart from the first side wall (120a) and the fourth side wall (120d) and stacked with the second side wall (120b) and the third side wall (120c), the first direction (X) and the second direction (Y) intersecting.

5. The extruded beam structure of claim 4, wherein, The second beam body (200) has an inner cavity, and the extruded beam structure (10) further comprises a connecting rib assembly (300) comprising at least two connecting ribs (310), the at least two connecting ribs (310) being spaced apart from the inner cavity and connected with the second beam body (200) respectively.

6. The extruded beam structure of claim 5, wherein, One of the connecting ribs (310) near the third side wall (120c) is used to divide the second beam body (200) into a first beam segment (210) and a second beam segment (220), the second beam segment (220) being arranged near the third side wall (120c) relative to the first beam segment (210); The second beam segment (220) is provided with a filler (230) arranged near the second side wall (120b) relative to the first side wall (120a).

7. The extruded beam structure according to any one of claims 1 to 3, characterized in that The first beam body (100) and the second beam body (200) extend along the same direction, and the extension length of the second beam body (200) is greater than that of the first beam body (100).

8. The structural extruded beam defined in any one of claims 1 to 3, wherein The first beam body (100) is provided with a first positioning member (130), and the second beam body (200) is provided with a second positioning member, the first positioning member (130) being correspondingly arranged with the second positioning member.

9. The extruded beam structure of claim 6, wherein, The third side wall (120c) is provided with a connecting portion (140) extending to at least part of the filler (230) in the second direction.

10. A vehicle chassis, characterized by The extruded beam structure (10) and the cross beam (20) are alternately connected to enclose a receiving cavity (30), and the side wall of the first beam body (100) is spaced apart from the second beam body (200). The extruded beam structure (10) and the cross beam (20) are alternately connected to enclose a receiving cavity (30), and the side wall of the first beam body (100) is spaced apart from the second beam body (200).

11. A vehicle characterized by comprising: The vehicle chassis according to claim 10 comprises: The vehicle chassis according to claim 10 comprises: The battery pack (40) is arranged in the receiving cavity (30) and connected with the extruded beam structure (10).

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