Energy absorption structure and vehicle frame

Abstract

The utility model relates to the technical field of vehicles, in particular to an energy absorption structure and a vehicle frame. The energy absorption structure comprises an energy absorption beam body, the energy absorption beam body comprises a plurality of side plates, the side plates are sequentially connected and define a cavity, the energy absorption beam body is provided with a first end and a second end which are opposite to each other in the length direction of the energy absorption beam body, the second end is used for being connected with a longitudinal beam, and in the width direction of the energy absorption beam body, the first end is connected with the longitudinal beam. Mounting grooves are formed in the at least two oppositely arranged side plates from the first end parts to the second end parts in a sunken manner, and the mounting grooves are used for accommodating at least part of the anti-collision cross beam and are connected with the anti-collision cross beam; wherein a crumple guide part is arranged at the connecting position of every two adjacent side plates, and the crumple guide parts are arranged in a sunken mode from the outer surfaces, away from the cavities, of the side plates to the sides where the cavities are located. According to the energy absorption structure, collision energy can be absorbed when the vehicle collides, the acceleration generated by vehicle collision is reduced, and therefore the collision safety performance of the vehicle frame is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to an energy-absorbing structure and a vehicle frame. BACKGROUND

[0002] The vehicle chassis is the structural basis of the vehicle, used for carrying the vehicle body, responsible for power transmission, support stability, steering control and braking parking functions, and is an important structural part to ensure the normal operation and safe driving of the vehicle.

[0003] In the related art, the vehicle chassis usually includes a frame and a sub-frame, and the frame and the sub-frame usually include a crash beam and a longitudinal beam connected with the crash beam. When the vehicle collides, the crash beam is used to absorb the collision energy. However, the energy-absorbing capacity of the crash beam is limited, which causes the longitudinal beam connected with the crash beam to deform when the vehicle collides, thereby affecting the collision safety performance of the vehicle chassis. CONTENT OF THE UTILITY MODEL

[0004] The present application provides an energy-absorbing structure and a vehicle frame. The energy-absorbing structure can absorb collision energy when the vehicle collides, reduce the acceleration generated by the vehicle collision, and thus improve the collision safety performance of the vehicle frame.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] In a first aspect, the present application provides an energy-absorbing structure for being arranged between a crash beam and a longitudinal beam of a vehicle frame. The energy-absorbing structure includes: an energy-absorbing beam body, the energy-absorbing beam body including a plurality of side plates, the plurality of side plates being connected in sequence and enclosing a cavity, the energy-absorbing beam body having opposite first and second end portions along the length direction thereof, the second end portion being configured to be connected with the longitudinal beam, and at least two side plates arranged oppositely in the width direction of the energy-absorbing beam body being recessed to have mounting grooves starting from the first end portion and ending at the second end portion, the mounting grooves being configured to accommodate at least part of the crash beam; wherein a collapse guide portion is arranged at the connection between each two adjacent side plates, the collapse guide portion being recessed from the outer surface of the side plate facing away from the cavity to the side where the cavity is located.

[0007] In a possible implementation, the energy-absorbing structure provided by the present application has a recess depth of the collapse guide portion that first increases and then decreases along the length direction; the collapse guide portion includes a first recess and a second recess, the first recess being arranged in one of the two adjacent side plates, the second recess being arranged in the other of the two adjacent side plates, the first recess and the second recess being connected at one end thereof facing each other at the joint of the two adjacent side plates, and the recess depth of the other end thereof gradually decreasing.

[0008] In a possible implementation, the energy-absorbing structure provided in the present application, the energy-absorbing beam body includes first side plates and second side plates arranged opposite to each other along the width direction, and third side plates and fourth side plates arranged opposite to each other along the height direction, the third side plates and the fourth side plates are connected between the first side plates and the second side plates respectively; wherein at least part of the first side plates and the second side plates are recessed from the first end to the second end to form mounting grooves.

[0009] In a possible implementation, the energy-absorbing structure provided in the present application, part of the first side plates and part of the second side plates are recessed from the first end to the second end to form a pair of first bosses on the side of the third side plates and the fourth side plates facing each other.

[0010] In a possible implementation, the energy-absorbing structure provided in the present application, on the side of the third side plates and the fourth side plates facing each other along the height direction, a second boss is arranged, the second boss is located between the pair of first bosses, and the second boss is arranged flush with the first bosses along the height direction.

[0011] In a possible implementation, the energy-absorbing structure provided in the present application, further includes a support assembly located in the cavity and extending along the length direction, the support assembly includes support ribs connected between at least two opposite side plates.

[0012] In a possible implementation, the energy-absorbing structure provided in the present application, the support assembly includes first support ribs and second support ribs, the first support ribs and the second support ribs are arranged intersected and connected to the side plates respectively.

[0013] In a possible implementation, the energy-absorbing structure provided in the present application, the second end is connected with a mounting seat, the orthographic projection of the mounting seat along the length direction is greater than the orthographic projection of the energy-absorbing beam body along the length direction, the mounting seat is arranged protruding relative to the energy-absorbing beam body and forms a protruding part, and a connecting part is arranged on the protruding part.

[0014] In a possible implementation, the energy-absorbing structure provided in the present application, the second end is connected with a mounting seat, the orthographic projection of the mounting seat along the length direction is greater than the orthographic projection of the energy-absorbing beam body along the length direction, the mounting seat is arranged protruding relative to the energy-absorbing beam body and forms a protruding part, and a connecting part is arranged on the protruding part.

[0015] In a possible implementation, the energy-absorbing structure provided in the present application, the second end is connected with a mounting seat, the orthographic projection of the mounting seat along the length direction is greater than the orthographic projection of the energy-absorbing beam body along the length direction, the mounting seat is arranged protruding relative to the energy-absorbing beam body and forms a protruding part, and a connecting part is arranged on the protruding part.

[0016] In a possible implementation, the energy-absorbing structure provided in the present application, the second end is connected with a mounting seat, the orthographic projection of the mounting seat along the length direction is greater than the orthographic projection of the energy-absorbing beam body along the length direction, the mounting seat is arranged protruding relative to the energy-absorbing beam body and forms a protruding part, and a connecting part is arranged on the protruding part.

[0017] The energy-absorbing structure and the vehicle frame are provided. The energy-absorbing structure is arranged between the anti-collision cross beam and the longitudinal beam of the vehicle frame. The energy-absorbing structure comprises an energy-absorbing beam body, which comprises a plurality of side plates connected in sequence and surrounding a cavity. The energy-absorbing beam body has opposite first and second end portions along the length direction of the energy-absorbing beam body. The second end portion is used for connecting with the longitudinal beam. In the width direction of the energy-absorbing beam body, at least two side plates arranged oppositely are provided with mounting grooves starting from the first end portion and recessed to the second end portion. The mounting grooves are used for accommodating and connecting with at least part of the anti-collision cross beam. By surrounding the anti-collision cross beam with the at least part of the side plates, the contact area between the anti-collision cross beam and the energy-absorbing beam body can be increased. When a collision occurs, the collision energy that is not absorbed by the anti-collision cross beam can be better transmitted to the energy-absorbing beam body, and the energy-absorbing beam body is used for energy-absorbing collapse. The connection portion of each adjacent two side plates is provided with a collapse guide portion, which is recessed to the side where the cavity is located starting from the outer surface of the side plate away from the cavity. By guiding the direction of energy-absorbing collapse of the energy-absorbing beam body through the collapse guide portion, the energy-absorbing effect of the energy-absorbing beam body can be improved. Therefore, the energy-absorbing structure can absorb the collision energy when the vehicle collides, reduce the acceleration generated by the vehicle collision, and improve the collision safety performance of the vehicle frame, thereby improving the collision safety performance of the vehicle chassis. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 The structural schematic diagram of the energy-absorbing structure provided by the embodiments of the present application is shown in the figure.

[0020] Figure 2 The structural schematic diagram of the energy-absorbing structure provided by the embodiments of the present application is shown in the figure. Figure 1 The structural schematic diagram of the energy-absorbing structure provided by the embodiments of the present application is shown in the figure.

[0021] Figure 3 The structural schematic diagram of the energy-absorbing structure provided by the embodiments of the present application is shown in the figure. Figure 1 The structural schematic diagram of the energy-absorbing structure provided by the embodiments of the present application is shown in the figure.

[0022] Figure 4 The structural schematic diagram of the vehicle frame provided by the embodiments of the present application is shown in the figure.

[0023] Figure 5 The structural schematic diagram of the vehicle frame provided by the embodiments of the present application is shown in the figure. Figure 4 The structural schematic diagram of the vehicle frame provided by the embodiments of the present application is shown in the figure.

[0024] Figure 6 The structural schematic diagram of the vehicle frame provided by the embodiments of the present application is shown in the figure. Figure 5 The structural schematic diagram of the vehicle frame provided by the embodiments of the present application is shown in the figure.

[0025] Figure 7A connection schematic between the anti-collision cross beam, the energy-absorbing structure and the longitudinal beam provided by the embodiments of the present application is shown.

[0026] Explanation of reference signs:

[0027] 1 - vehicle frame;

[0028] 10 - energy-absorbing structure; 20 - anti-collision cross beam; 30 - longitudinal beam; 40 - first vehicle frame; 50 - second vehicle frame;

[0029] 100 - energy-absorbing beam body;

[0030] 110 - side plate; 110a - first side plate; 110b - second side plate; 110c - third side plate; 110d - fourth side plate;

[0031] 120 - cavity;

[0032] 130 - first end portion;

[0033] 140 - second end portion;

[0034] 150 - mounting groove;

[0035] 160 - collapse guide portion; 161 - first groove; 162 - second groove;

[0036] 170 - first boss;

[0037] 180 - second boss;

[0038] 200 - support assembly;

[0039] 210 - support rib; 210a - first support rib; 210b - second support rib;

[0040] 300 - mounting seat;

[0041] 310 - protruding portion; 311 - connecting portion;

[0042] X - length direction; Y - width direction; Z - height direction.

[0043] By the above-described drawings, the specific embodiments of the present application have been shown, and will be described in more detail hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] In order to make the objects, technical solutions and advantages of the present application clearer, the following will further describe the technical solutions in the embodiments of the present application with reference to the drawings in the preferred embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0045] It should be noted that, in the description of the embodiments of the present application, the terms indicating the orientation or positional relationship such as "upper", "lower", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and do not indicate or imply that the device or member 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.

[0046] 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. Therefore, 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 explicitly and specifically limited.

[0047] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "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; it can be the communication or interaction relationship between two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the related art, the vehicle chassis usually includes a frame and a subframe, and the frame and the subframe usually include a crash beam and a longitudinal beam connected with the crash beam. When the vehicle collides, the crash beam is used to absorb the collision energy. However, the energy absorption capacity of the crash beam is limited, so that when the vehicle collides, the longitudinal beam connected with the crash beam is still prone to deformation, thereby affecting the crash safety performance of the vehicle chassis.

[0049] In view of this, the embodiment of the present application provides an energy absorption structure and a vehicle frame. The energy absorption structure is arranged between the anti-collision cross beam and the longitudinal beam of the vehicle frame. The energy absorption structure comprises an energy absorption beam body. The energy absorption beam body comprises a plurality of side plates which are sequentially connected and surround a cavity. The energy absorption beam body has opposite first and second end portions along the length direction of the energy absorption beam body. The second end portion is used for connecting with the longitudinal beam. In the width direction of the energy absorption beam body, at least two opposite side plates are provided with mounting grooves starting from the first end portion and recessed to the second end portion. The mounting grooves are used for accommodating and connecting with at least part of the anti-collision cross beam. By surrounding the anti-collision cross beam with the at least part of the plurality of side plates, the contact area of the anti-collision cross beam and the energy absorption beam body can be increased. When a collision occurs, the collision energy that is not absorbed by the anti-collision cross beam can be better transmitted to the energy absorption beam body, and the energy absorption beam body is used for energy absorption and collapse. The connection portion of each adjacent two side plates is provided with a collapse guide portion. The collapse guide portion is recessed to the side where the cavity is located starting from the outer surface of the side plate away from the cavity. By guiding the direction of energy absorption and collapse of the energy absorption beam body through the collapse guide portion, the energy absorption effect of the energy absorption beam body can be improved. Therefore, the energy absorption structure can absorb the collision energy when the vehicle collides, reduce the acceleration generated by the vehicle collision, improve the collision safety performance of the vehicle frame, and improve the collision safety performance of the vehicle chassis.

[0050] The present application will be described in detail below in conjunction with the drawings and specific embodiments.

[0051] Referring to Figure 1 and Figure 4 , the present application provides an energy absorption structure 10 arranged between the anti-collision cross beam 20 and the longitudinal beam 30 of the vehicle frame 1. The energy absorption structure 10 comprises an energy absorption beam body 100. The energy absorption beam body 100 comprises a plurality of side plates 110 which are sequentially connected and surround a cavity 120. The energy absorption beam body 100 has opposite first and second end portions 130 and 140 along the length direction X of the energy absorption beam body 100. The second end portion 140 is used for connecting with the longitudinal beam 30. In the width direction Y of the energy absorption beam body 100, at least two opposite side plates 110 are provided with mounting grooves 150 starting from the first end portion 130 and recessed to the second end portion 140. The mounting grooves 150 are used for accommodating at least part of the anti-collision cross beam 20. The connection portion of each adjacent two side plates 110 is provided with a collapse guide portion 160. The collapse guide portion 160 is recessed to the side where the cavity 120 is located starting from the outer surface of the side plate 110 away from the cavity 120.

[0052] It can be understood that the energy absorption structure 10 comprises the energy absorption beam body 100. The energy absorption beam body 100 can comprise a plurality of side plates 110 which are sequentially connected and collectively surround the cavity 120. The cavity 120 can reduce the weight of the energy absorption structure 10 itself, and provide a deformation space for energy absorption during the collapse process, thereby enhancing the energy absorption effect of the energy absorption structure 10.

[0053] Optionally, the energy-absorbing beam body 100 can include four, five or more side plates 110, and the shape of the side plates 110 can be planar, and the specific shape depends on the design requirements of the energy-absorbing beam body 100. For example, the rectangular cavity 120 requires four planar side plates 110. The energy-absorbing beam body 100 can be designed as an integral molded part, which facilitates production and processing.

[0054] In the above embodiment, the side plates 110 can be made of aluminum material, and the thickness of the side plates 110 can be any value between 2mm and 3mm, including the two end values of 2mm and 3mm.

[0055] The energy-absorbing beam body 100 has a first end portion 130 and a second end portion 140 arranged opposite along the length direction X of the energy-absorbing beam body 100. The second end portion 140 is used to connect with the longitudinal beam 30 of the vehicle frame 1, and the second end portion 140 can be fixedly connected with the longitudinal beam 30 by bolt connection, for example.

[0056] The at least two side plates 110 arranged opposite in the width direction Y of the energy-absorbing beam body 100 are recessed from the first end portion 130 to the second end portion 140 to form mounting grooves 150, that is, the energy-absorbing beam body 100 can be provided with opposite mounting grooves 150 in the width direction Y, and the mounting grooves 150 are used to accommodate and connect with at least part of the anti-collision cross beam 20. The anti-collision cross beam 20 can be fixedly connected with the mounting grooves 150 by welding, for example. In this way, the installation process is simplified, and the close fit between the anti-collision cross beam 20 and the energy-absorbing structure 10 is ensured.

[0057] It should be noted that by providing the mounting grooves 150, at least part of the side plates 110 are arranged to surround the anti-collision cross beam 20, which can increase the contact area between the anti-collision cross beam 20 and the energy-absorbing beam body 100. When the vehicle collides, the collision energy that is not absorbed by the anti-collision cross beam 20 can be better transmitted to the energy-absorbing beam body 100 for energy-absorbing collapse.

[0058] It should be further noted that the connection between each two adjacent side plates 110 is provided with a collapse guide portion 160. The collapse guide portion 160 is recessed from the outer surface of the side plate 110 (i.e., the side away from the cavity 120) to the direction of the cavity 120. When the vehicle collides, the collapse guide portion 160 can guide and control the orderly collapse of the energy-absorbing beam body 100, effectively absorb and disperse the energy generated by the collision, thereby reducing the impact acceleration of the collision on the vehicle and passengers, improving the collision safety performance of the vehicle frame 1, and further improving the collision safety performance of the vehicle chassis.

[0059] Optionally, the collapse guide portion 160 between each two adjacent side plates 110 can be provided in one, two or more numbers, and the specific number depends on the design requirements of the energy-absorbing beam body 100.

[0060] Exemplarily, the interval between two adjacent collapse guide portions 160 can be set to any value between 75mm and 85mm, including the two end values 75mm and 85mm, and can be optionally 80mm, so as to guide the direction of the collapse deformation of the energy absorption structure 10 when the vehicle is in a collision, and ensure that the collapse deformation is stable. In this way, the structural strength of the energy absorption beam body 100 and the collapse energy absorption effect when a collision occurs can be balanced.

[0061] Referring to Figure 1 and Figure 2 In some embodiments, along the length direction X, the recess depth of the collapse guide portion 160 first increases and then decreases.

[0062] In this way, the collapse energy absorption effect of the energy absorption structure 10 can be improved, which helps to reduce the impact force during the collision process and protect the surrounding structure and the safety of the passengers.

[0063] In other optional embodiments, the collapse guide portion 160 includes a first groove 161 and a second groove 162, the first groove 161 is arranged on one of the two adjacent side plates 110, the second groove 162 is arranged on the other of the two adjacent side plates 110, the first groove 161 and the second groove 162 are communicated at the joint of the two adjacent side plates 110 at one end thereof which is closer to each other, and the recess depth of the other end thereof which is away from each other gradually decreases.

[0064] Through the gradual change of the recess depth of the first groove 161 and the second groove 162, the stress concentration on the collapse guide portion 160 can be avoided, the collapse direction of the energy absorption beam body 100 can be better guided, and the collapse energy absorption effect of the energy absorption beam body 100 can be improved.

[0065] It should be noted that the orthographic projection shape of the collapse guide portion 160 on the corresponding side plate 110 can be circular, elliptical, etc. When the orthographic projection of the collapse guide portion 160 is elliptical, the long axis direction is consistent with the length direction X of the energy absorption beam body 100, thereby improving the energy absorption effect of the energy absorption beam body 100.

[0066] In addition, the maximum recess depth of the collapse guide portion 160 can be set to any value between 5mm and 6mm, and can be optionally 6mm. In this way, the structural strength of the energy absorption beam body 100 and the collapse energy absorption effect when a collision occurs can be balanced.

[0067] Referring to Figure 1In some embodiments, the energy-absorbing beam body 100 comprises a first side plate 110a and a second side plate 110b spaced apart and arranged opposite to each other along the width direction Y, and a third side plate 110c and a fourth side plate 110d spaced apart and arranged opposite to each other along the height direction Z, the third side plate 110c and the fourth side plate 110d being connected between the first side plate 110a and the second side plate 110b respectively; wherein at least part of the first side plate 110a and the second side plate 110b are recessed from the first end 130 to the second end 140 to form a mounting groove 150.

[0068] It should be noted that the energy-absorbing beam body 100 comprises the first side plate 110a and the second side plate 110b spaced apart and arranged opposite to each other along the width direction Y, which provides longitudinal support for the energy-absorbing beam body 100. The energy-absorbing beam body 100 is further provided with the third side plate 110c and the fourth side plate 110d spaced apart and arranged opposite to each other along the height direction Z, and the first side plate 110a and the second side plate 110b are connected through the third side plate 110c and the fourth side plate 110d, so that the energy-absorbing beam body 100 forms a quadrilateral frame. In this way, the overall stability of the energy-absorbing beam body 100 is enhanced, and the energy-absorbing structure 10 can more evenly distribute and transmit stress when subjected to external force impact, thereby improving the impact resistance of the energy-absorbing structure 10.

[0069] In specific implementation, part of the first side plate 110a and part of the second side plate 110b can be recessed from the first end 130 to the second end 140 to form the mounting groove 150. In this way, at least part of the anti-collision cross beam 20 is embedded in the mounting groove 150 and connected with the recessed edges of the first side plate 110a and the second side plate 110b, and the first side plate 110a and the second side plate 110b provide support to the anti-collision cross beam 20. Alternatively, the first side plate 110a and the second side plate 110b can be recessed from the first end 130 to the second end 140 to form the mounting groove 150, so that at least part of the anti-collision cross beam 20 is embedded in the mounting groove 150 and connected with the outer surfaces of the third side plate 110c and the fourth side plate 110d. In this way, the third side plate 110c and the fourth side plate 110d provide support to the anti-collision cross beam 20.

[0070] Referring to Figure 1 and Figure 3 In some embodiments, part of the first side plate 110a and part of the second side plate 110b are recessed from the first end 130 to the second end 140 to form a pair of first bosses 170 on the side of the third side plate 110c and the fourth side plate 110d facing each other.

[0071] That is, along the height direction Z, the width of the first side plate 110a and the second side plate 110b is greater than the groove width of the groove respectively. In this way, when the anti-collision cross beam 20 is embedded in the mounting groove 150, the connection stability between the anti-collision cross beam 20 and the energy absorption beam body 100 is ensured, and at the same time, the first boss 170 can support the anti-collision cross beam 20, thereby enhancing the stability and support force of the energy absorption structure 10.

[0072] Referring to Figure 1 and Figure 2 In some embodiments, along the height direction Z, the third side plate 110c and the fourth side plate 110d are provided with a second boss 180 on the side facing each other, the second boss 180 is located between the pair of first bosses 170, and the second boss 180 is flush with the first boss 170 in the height direction Z.

[0073] It should be noted that the second boss 180 can be arranged between the pair of first bosses 170. By arranging the second boss 180, not only does it provide an additional support point for the anti-collision cross beam 20, but it also enhances the overall rigidity and strength of the energy absorption structure 10 itself. In addition, it also optimizes the collision energy transmission path, so that when subjected to external impact, the collision energy can be more evenly and effectively dispersed and absorbed.

[0074] Optionally, one second boss 180, two second bosses 180 or more second bosses 180 can be arranged between the pair of first bosses 170, and the specific number depends on the design requirements of the energy absorption structure 10.

[0075] Referring to Figure 1 In some embodiments, a support assembly 200 is further included, the support assembly 200 is located in the cavity 120 and extends along the length direction X, and the support assembly 200 includes a support rib 210 connected between at least two oppositely arranged side plates 110.

[0076] The support rib 210 is connected between at least two oppositely arranged side plates 110. By arranging the support rib 210, the rigidity and strength of the energy absorption beam body 100 can be enhanced, and the stability of the energy absorption structure 10 can be effectively improved. When the vehicle collides, the support rib 210 can provide support for the side plate 110, prevent the energy absorption beam body 100 from deforming too much, and thus ensure that the energy absorption beam body 100 can continuously and effectively absorb and disperse impact energy.

[0077] Referring to Figure 1 In some embodiments, the support assembly 200 includes a first support rib 210a and a second support rib 210b, and the first support rib 210a and the second support rib 210b are arranged in a cross shape and connected to the side plate 110 respectively.

[0078] In specific implementation, the first support rib 210a can be connected between the first side plate 110a and the second side plate 110b, and the second support rib 210b can be connected between the third side plate 110c and the fourth side plate 110d. In this way, the first support rib 210a and the second support rib 210b can enhance the stability of the energy-absorbing beam body 100 in different directions, and also enable the energy-absorbing beam body 100 to deform more orderly when subjected to impact, thereby more effectively absorbing collision energy.

[0079] It should be noted that the first support rib 210a and the second support rib 210b are arranged in a cross manner, which can improve the torsional resistance of the energy-absorbing beam body 100. For example, the first support rib 210a and the second support rib 210b can be arranged perpendicular to each other.

[0080] Referring to Figure 1 In some embodiments, the second end portion 140 is connected with a mounting seat 300, the mounting seat 300 has a length direction X projection greater than the length direction X projection of the energy-absorbing beam body 100, the mounting seat 300 is arranged protruding relative to the energy-absorbing beam body 100 and is formed with a protruding portion 310, and the protruding portion 310 is provided with a connecting portion 311.

[0081] In the mounting seat 300, the length direction X projection of the mounting seat 300 is greater than the length direction X projection of the energy-absorbing beam body 100. In this way, the mounting seat 300 can provide a larger contact area, thereby enhancing the connection strength between the second end portion 140 and the longitudinal beam 30. Specifically, the mounting seat 300 can be arranged protruding relative to the energy-absorbing beam body 100 and formed with a protruding portion 310, so that the contact area between the second end portion 140 and the longitudinal beam 30 can be increased through the protruding portion 310.

[0082] The connecting portion 311 is arranged on the protruding portion 310, which can be a connecting hole. In this way, not only a reliable connection between the mounting seat 300 and the longitudinal beam 30 is provided, but also the convenience and efficiency of the connection process are ensured. Specifically, a fastener can be used to connect the mounting seat 300 and the longitudinal beam 30, and the fastener passes through the connecting hole. In this way, the mounting and dismounting between the mounting seat 300 and the longitudinal beam 30 are facilitated.

[0083] Referring to Figures 5 to 7On the basis of the above-mentioned embodiments, the embodiment of the present application provides a vehicle frame 1, comprising a first frame 40, a second frame 50 and the energy-absorbing structure 10 provided by any of the above-mentioned embodiments. Wherein the first frame 40 and the second frame 50 are arranged and connected along the height direction of the vehicle frame 1 itself, and at least one of the first frame 40 and the second frame 50 is provided with the energy-absorbing structure 10. That is, the energy-absorbing structure 10 can be provided on the first frame 40, or the energy-absorbing structure 10 can be provided on the second frame 50, or the energy-absorbing structure 10 can be provided on both the first frame 40 and the second frame 50.

[0084] Wherein the energy-absorbing structure 10 has been described in detail in the above-mentioned embodiments, which will not be repeated here.

[0085] The first frame 40 and the second frame 50 each comprise a crash beam 20 and a longitudinal beam 30. Wherein the energy-absorbing beam body 100 is arranged between the crash beam 20 and the longitudinal beam 30, and part of the crash beam 20 is embedded in the mounting groove 150 to be fixedly connected with the energy-absorbing beam body 100. The longitudinal beam 30 is fixedly connected with the energy-absorbing beam body 100 through the second end portion 140.

[0086] Referring to Figure 4 The second frame 50 can be understood as a sub-frame. Exemplarily, the second frame 50 can be connected with the first frame 40 through bolts.

[0087] In specific implementation, the energy-absorbing structure 10 can be arranged on both the first frame 40 and the second frame 50, thereby the energy-absorbing effect of the vehicle frame 1 can be improved, and the collision safety performance of the vehicle frame 1 can be improved.

[0088] Wherein the collision front ends of the crash beams 20 of the first frame 40 and the second frame 50 can be arranged flush, thereby when a collision occurs, the crash beams 20 of the first frame 40 and the second frame 50 can resist the impact and fully absorb the collision energy at the same time, and the collision safety performance of the vehicle frame 1 can be improved.

[0089] It should be noted that the crash beam 20 can be connected with two energy-absorbing structures 10 at intervals in the width direction Y, and part of the crash beam 20 is embedded in the mounting groove 150 to be fixedly connected with the energy-absorbing beam body 100. By arranging the mounting groove 150, the energy-absorbing structure 10 can better fit the crash beam 20, thereby better surrounding the crash beam 20, and the connection between the energy-absorbing structure 10 and the crash beam 20 can be more stable. The second end portion 140 of the energy-absorbing beam body 100 is connected with one longitudinal beam 30 respectively. By connecting the energy-absorbing structure 10 between the crash beam 20 and the longitudinal beam 30, the acceleration generated by the vehicle collision can be reduced, the collision safety performance of the vehicle frame 1 can be improved, and the collision safety performance of the vehicle chassis can be improved.

[0090] 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; it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to 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. An energy-absorbing structure for being arranged between a cross beam (20) and a longitudinal beam (30) of a vehicle frame (1), characterized in that The energy-absorbing structure (10) comprises: An energy-absorbing beam body (100) comprising a plurality of side plates (110) connected in sequence and enclosing a cavity (120), the energy-absorbing beam body (100) having opposite first and second ends (130, 140) along its length direction (X), the second end (140) being used for connecting with the longitudinal beam (30), at least two of the side plates (110) arranged oppositely and recessed from the first end (130) to the second end (140) to form mounting grooves (150) for accommodating at least part of the anti-collision cross beam (20) in the width direction (Y) of the energy-absorbing beam body (100); Wherein, a collapse guide (160) is arranged at the connection between each two adjacent side plates (110), the collapse guide (160) being recessed from the outer surface of the side plate (110) away from the cavity (120) to the side where the cavity (120) is located.

2. The energy absorbing structure of claim 1, wherein, The recess depth of the collapse guide (160) increases first and then decreases along the length direction (X); And / or, the collapse guide (160) comprises a first recess (161) arranged in one of the two adjacent side plates (110) and a second recess (162) arranged in the other of the two adjacent side plates (110), the first and second recesses (161, 162) being connected at one end thereof facing each other at the joint of the two adjacent side plates (110) and gradually decreasing in recess depth at the other end thereof away from each other.

3. The energy absorbing structure of claim 1, wherein, The energy-absorbing beam body (100) comprises first and second side plates (110a, 110b) arranged oppositely and spaced apart along the width direction (Y) and third and fourth side plates (110c, 110d) arranged oppositely and spaced apart along their height direction (Z), the third and fourth side plates (110c, 110d) being connected between the first and second side plates (110a, 110b) respectively; Wherein, at least part of the first and second side plates (110a, 110b) are recessed from the first end (130) to the second end (140) to form the mounting grooves (150).

4. The energy absorbing structure of claim 3, wherein, Part of the first and second side plates (110a, 110b) are recessed from the first end (130) to the second end (140) to form a pair of first bosses (170) on the side of the third and fourth side plates (110c, 110d) facing each other.

5. The energy absorbing structure of claim 4, wherein, Along the height direction (Z), one side of the third side plate (110c) and the fourth side plate (110d) towards each other is provided with a second boss (180), the second boss (180) is located between the pair of first bosses (170), and the second boss (180) is flush with the first boss (170) in the height direction (Z).

6. The energy absorbing structure of any one of claims 1 to 5, wherein, Further comprising a support assembly (200) located in the cavity (120) and extending along the length direction (X), the support assembly (200) comprises a support rib (210) connected between at least two oppositely arranged side plates (110).

7. The energy absorbing structure of claim 6, wherein, The support assembly (200) comprises a first support rib (210a) and a second support rib (210b), the first support rib (210a) and the second support rib (210b) are cross arranged and connected to the side plate (110) respectively.

8. The energy absorbing structure of any of claims 1 to 5, wherein, The second end (140) is connected with a mounting seat (300), the orthogonal projection of the mounting seat (300) in the length direction (X) is greater than the orthogonal projection of the energy-absorbing beam body (100) in the length direction (X), the mounting seat (300) is protrudingly arranged relative to the energy-absorbing beam body (100) and is formed with a protruding portion (310), and the connecting portion (311) is arranged on the protruding portion (310).

9. A vehicle frame, characterized by The energy-absorbing structure (10) comprises a first frame (40), a second frame (50) and an energy-absorbing structure (10) as claimed in any one of claims 1 to 8. The first frame (40) and the second frame (50) are arranged and connected along the height direction of the frame (1) itself, and at least one of the first frame (40) and the second frame (50) is provided with the energy-absorbing structure (10).

10. Frame according to claim 9, characterized in that The first frame (40) and the second frame (50) each comprise a crash beam (20) and a longitudinal beam (30), the energy-absorbing beam body (100) of the energy-absorbing structure (10) is arranged between the crash beam (20) and the longitudinal beam (30), and part of the crash beam (20) is embedded in the mounting groove (150) to be fixedly connected with the energy-absorbing beam body (100). The longitudinal beam (30) is fixedly connected with the energy-absorbing beam body (100) through the second end (140).

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