Anti-collision structure and vehicle

Abstract

An anti-collision structure and a vehicle, the anti-collision structure (31) is used for the vehicle (30), and the anti-collision structure (31) comprises: a pair of longitudinal beams (11) arranged at intervals along a first direction (y); the two ends of the traction piece (20) are connected with the paired longitudinal beams (11) respectively, and the traction piece (20) stretches across the interval space separated by the paired longitudinal beams (11); wherein the at least one traction piece (20) is configured to form a traction force on the pair of longitudinal beams (11) when the at least one traction piece (20) is extruded or collided in a second direction intersecting with the first direction (y).

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to an anti-collision structure and a vehicle. Background Art

[0002] The anti-collision structure is an important part of the vehicle's passive safety system. In the anti-collision structure, anti-collision beams are usually installed at the front and rear of the vehicle to absorb and disperse the energy during the collision, thereby reducing the impact on the body structure and passengers in the vehicle. Summary of the invention

[0003] In one aspect of the present disclosure, there is provided an anti-collision structure for a vehicle, comprising:

[0004] A pair of longitudinal beams spaced apart along a first direction; and

[0005] At least one pulling member has two ends respectively connected to the pair of longitudinal beams and spans across the spacing space between the pair of longitudinal beams; wherein the at least one pulling member is configured to generate a pulling force on the pair of longitudinal beams when squeezed or collided in a second direction intersecting the first direction.

[0006] In this embodiment, at least one pulling member spans the space between the pair of longitudinal beams spaced apart in the first direction, and the pulling member is used to receive collision or extrusion in a collision accident or other scenario, so as to convert the collision or extrusion in the second direction into a pulling force on the longitudinal beam, so that the longitudinal beam absorbs the extrusion energy or collision energy under the action of the pulling force. Compared with the anti-collision beam in the related art, whose main body is easy to break and whose joint is easy to lose stability, the pulling member can adjust its own shape and position and angle relative to the longitudinal beam according to the collision or extrusion, so as to apply traction to the pair of longitudinal beams.

[0007] In some embodiments, the pair of longitudinal beams absorbs crushing energy or collision energy under the action of the pulling force.

[0008] In this embodiment, the pulling member can adjust its own shape and position and angle relative to the longitudinal beam according to the collision or extrusion it receives, and apply traction to the longitudinal beam, so that the pulling member itself and its connection with the longitudinal beam are not easily failed in scenarios such as collision accidents, thereby helping the longitudinal beam to fully absorb and dissipate the extrusion energy or collision energy.

[0009] In some embodiments, the bending strength of each longitudinal beam in the pair of longitudinal beams is less than or equal to the tensile strength of the at least one pulling member.

[0010] In this embodiment, when the pulling member is collided or squeezed, the pulling member will pull the longitudinal beams on both sides inward, causing the longitudinal beams on both sides to bend and deform inward. In order to prevent the pulling member from being damaged before the longitudinal beams due to excessive traction when applying traction force to the longitudinal beams, the bending strength of each longitudinal beam can be made less than or equal to the tensile strength of at least one pulling member, so that the longitudinal beams can absorb the extrusion energy or collision energy more fully.

[0011] In some embodiments, both ends of the at least one pulling member have joints connected to the pair of longitudinal beams, and the bending strength of each longitudinal beam in the pair of longitudinal beams is less than or equal to the connection strength of the joints.

[0012] In this embodiment, by making the bending strength of the longitudinal beam less than or equal to the connection strength of the joint, when the pulling member applies traction to the longitudinal beam, the joint will not be destroyed before the longitudinal beam due to excessive traction or torque, so that the longitudinal beam can absorb the extrusion energy or collision energy more fully.

[0013] In some embodiments, the connection position between the joint and the pair of longitudinal beams is located at the front end of the pair of longitudinal beams in the direction opposite to the second direction or at the rear side of the front end of the pair of longitudinal beams.

[0014] In this embodiment, connecting the joint at the end of the pulling member to the front end of the longitudinal beam is conducive to responding to the extrusion energy or collision energy earlier to absorb the energy. Connecting the joint to the rear position of the front end of the longitudinal beam is conducive to reducing the risk of damage or instability of the front end of the longitudinal beam due to large local force.

[0015] In some embodiments, the anti-collision structure further comprises:

[0016] The energy absorption box is arranged at the front end portion and is configured to deform and absorb energy when subjected to compression or collision in the second direction.

[0017] In this embodiment, when the collision object moves toward the anti-collision structure along the second direction, it may first collide with the energy absorbing box and undergo plastic deformation. This can absorb the extrusion energy or collision energy and reduce the damage to the longitudinal beam and other key vehicle components. On the other hand, when the collision force is relatively limited and does not cause obvious deformation of the longitudinal beam, the energy absorbing box can be quickly replaced to reduce maintenance costs and improve the repairability of the vehicle.

[0018] In some embodiments, the joint is hingedly connected to the pair of longitudinal beams.

[0019] In this embodiment, by hinge-connecting the joint at the end of the pulling member to the longitudinal beam, the relative position of the joint and the longitudinal beam can be adjusted as the pulling member bends, thereby reducing the force and torque borne by the joint.

[0020] In some embodiments, the pair of longitudinal beams is at least one of a pair of front longitudinal beams, a pair of rear longitudinal beams, and a pair of longitudinal beams of an energy cabin frame.

[0021] At least one of the paired front longitudinal beams, the paired rear longitudinal beams and the paired longitudinal beams of the energy cabin frame can provide effective anti-collision protection for corresponding parts of the vehicle, improve the safety of passengers in the vehicle, and reduce damage to vehicle components.

[0022] In some embodiments, the first direction is a lateral direction of the vehicle.

[0023] In this embodiment, the first direction is set to the lateral direction of the vehicle, so that the pulling member across the lateral intervals of the longitudinal beams can easily convert the collision or compression from the longitudinal direction of the vehicle into a pulling force on the pairs of longitudinal beams arranged at the lateral intervals, thereby realizing the anti-collision protection of the vehicle in the longitudinal direction through the deformation and energy absorption of the longitudinal beams.

[0024] In some embodiments, the at least one puller is pre-tensioned or tensioned along the first direction.

[0025] In this embodiment, the response speed of the pulling member can be increased by pre-tensioning or tensioning the pulling member along the first direction.

[0026] In some embodiments, the anti-collision structure further includes a pulling member vibration absorbing device, which is used to eliminate the vibration caused by the pulling member and improve the NVH performance of the vehicle.

[0027] In this embodiment, by providing a pulling member vibration absorbing device, the vibration caused by the pulling member can be eliminated, thereby improving the NVH performance of the vehicle.

[0028] In some embodiments, a cross beam is connected between the pair of longitudinal beams, and at least a portion of the at least one pulling member is embedded in the cross beam.

[0029] In this embodiment, a part or the whole of the pulling member is embedded in the cross beam, so that the space occupied by the pulling member can be reduced through the cross beam, and it is helpful to eliminate the vibration and noise of the pulling member.

[0030] In some embodiments, the puller comprises a flexible puller.

[0031] In this embodiment, the flexible pulling member can change its shape more evenly under the action of collision or extrusion so as to apply traction force to the longitudinal beam more evenly, making it less likely for the pulling member itself and its connection with the longitudinal beam to fail in scenarios such as collision accidents, thereby helping the longitudinal beam to more fully absorb and dissipate extrusion energy or collision energy.

[0032] In one aspect of the present disclosure, there is provided an anti-collision structure for a vehicle, comprising:

[0033] A pair of energy absorbing components, spaced apart along a first direction and configured to deform and absorb energy when subjected to a pulling force; and

[0034] At least one pulling member has two ends respectively connected to the paired energy absorbing components and spans across the spacing space separating the paired energy absorbing components; wherein the at least one pulling member is configured to generate a pulling force on the paired energy absorbing components when squeezed or collided in a second direction intersecting the first direction.

[0035] In this embodiment, at least one pulling member spans the space between the paired energy absorbing components spaced apart in the first direction, and the pulling member is used to receive collision or extrusion in a collision accident or other scenario, so as to convert the collision or extrusion in the second direction into a pulling force on the energy absorbing component, so that the energy absorbing component absorbs the extrusion energy or collision energy under the action of the pulling force. Compared with the anti-collision beam in the related art, whose main body is easy to break and whose joint is easy to lose stability, the pulling member can adjust its own shape and position and angle relative to the longitudinal beam according to the collision or extrusion received, so as to apply traction to the paired energy absorbing components.

[0036] In some embodiments, the paired energy-absorbing components absorb compression energy or collision energy under the action of pulling force.

[0037] In this embodiment, the pulling member can adjust its own shape and position and angle relative to the energy absorbing component according to the collision or extrusion it receives, and apply traction to the energy absorbing component, so that the pulling member itself and its connection with the energy absorbing component are not easily failed in scenarios such as collision accidents, thereby helping the energy absorbing component to fully absorb and dissipate the extrusion energy or collision energy.

[0038] In some embodiments, at least one of the paired energy absorbing components includes an elastic member, an end of the at least one pulling member is connected to the elastic member, and the elastic member is configured to undergo tensile deformation to absorb energy when subjected to the pulling force of the at least one pulling member.

[0039] In this embodiment, the elastic body that is stretched and deformed to absorb energy can absorb energy more evenly in the direction of the pulling force, and can achieve good rebound performance, so that it is easy to restore to its original state after a normal collision, reducing vehicle damage and facilitating maintenance. In addition, it can also be used to achieve pre-tensioning of the pulling member.

[0040] In some embodiments, the tensile strength of the elastic member is less than or equal to the tensile strength of the at least one pulling member.

[0041] In this embodiment, by making the tensile strength of the elastic member less than or equal to the tensile strength of the at least one pulling member, when the pulling member applies traction force to the elastic member, the pulling member itself will not be destroyed before the elastic member due to excessive traction force, thereby allowing the elastic member to more fully absorb extrusion energy or collision energy.

[0042] In some embodiments, the end of the at least one pulling member has a joint connected to the elastic member, and the tensile strength of the elastic member is less than or equal to the connection strength of the joint.

[0043] In this embodiment, in order to prevent the joint from being damaged before the elastic member due to excessive traction or torque when the pulling member applies traction to the elastic member, the bending strength of the elastic member can be made less than or equal to the connection strength of the joint, so that the elastic member can more fully absorb the extrusion energy or collision energy.

[0044] In some embodiments, at least one of the paired energy absorbing components includes a damper, an end of the at least one pulling member is connected to the damper, and the damper is configured to undergo tensile deformation and energy absorption when subjected to the pulling force of the at least one pulling member. The damper is configured to undergo tensile deformation and energy absorption when subjected to the pulling force of the at least one pulling member.

[0045] In this embodiment, the extension deformation of the damper can provide continuous resistance, prolonging the action time between the collision object and the anti-collision structure, so that the extrusion energy or collision energy can be dissipated and absorbed by the damper in a relatively longer period of time.

[0046] In some embodiments, the maximum damping force of the damper is less than or equal to the tensile strength of the at least one pulling member.

[0047] In this embodiment, by making the maximum damping force of the damper less than or equal to the tensile strength of the at least one pulling member, the pulling member itself will not be damaged before the elastic member due to excessive pulling force when applying pulling force to the damper, so that the damper can more fully absorb the extrusion energy or collision energy.

[0048] In some embodiments, the end of the at least one pulling member has a joint connected to the damper, and the maximum damping force of the damper is less than or equal to the connection strength of the joint.

[0049] In this embodiment, in order to prevent the joint from being damaged before the damper due to excessive traction or torque when the pulling member applies traction to the damper, the maximum damping force of the damper can be made less than or equal to the connection strength of the joint, so that the damper can absorb the extrusion energy or collision energy more fully.

[0050] In some embodiments, at least one of the paired energy absorbing components includes a roller and a torsion bar, an end of the at least one pulling member is connected to the roller and partially wrapped around the outer circumference of the roller, the roller is coaxially fixedly connected to the torsion bar, and the torsion bar is configured to undergo torsional deformation to absorb energy when the roller is subjected to the pulling force of the at least one pulling member.

[0051] In this embodiment, the roller is angularly displaced under the traction force of the pulling member, driving the torsion bar to torsionally deform, so that part of the extrusion energy or collision energy is dissipated and absorbed with the torsion deformation of the torsion bar. The torsion bar that absorbs energy by torsion deformation can achieve a more compact structure, reduce space occupation, and can also be used to achieve the pre-tension of the pulling member.

[0052] In some embodiments, the torsional strength of the torsion bar is less than or equal to the tensile strength of the at least one pulling member.

[0053] In this embodiment, by making the torsional strength of the torsion bar less than or equal to the tensile strength of the at least one pulling member, when the pulling member applies traction force to the roller, it will not be destroyed before the torsion bar due to excessive traction force. This allows the torsion bar to absorb extrusion energy or collision energy more fully.

[0054] In some embodiments, the at least one puller is pre-tensioned or tensioned along the first direction.

[0055] In this embodiment, at least one pulling member pre-tensioned or tensioned along the first direction is used to receive collision or compression, so that the response speed of the pulling member can be improved.

[0056] In some embodiments, the anti-collision structure includes a plurality of pulling members, at least some of which are parallel to or cross each other.

[0057] In this embodiment, multiple pulling members that are at least partially parallel or crossed with each other are used to accept collision or extrusion, which can improve the overall tensile strength of the multiple pulling members, improve the load-bearing capacity and reliability, and help to enrich the form of the anti-collision structure so that it can be adaptively set according to the specific needs of the area that requires anti-collision protection.

[0058] In some embodiments, at least one puller comprises a flexible puller.

[0059] In this embodiment, the flexible pulling member can change its shape more evenly under the action of collision or extrusion so as to apply traction force to the energy absorbing component more evenly, making it less likely for the pulling member itself and its connection with the energy absorbing component to fail in scenarios such as collision accidents, thereby helping the energy absorbing component to more fully absorb and dissipate extrusion energy or collision energy.

[0060] In some embodiments, the flexible pulling member includes at least one of a metal rope, a natural fiber rope, a synthetic fiber rope, and a composite fiber rope.

[0061] In this embodiment, at least one of metal ropes, natural fiber ropes, synthetic fiber ropes and composite fiber ropes is used to realize the flexible pulling member, which can effectively transmit the collision or extrusion force to the energy absorbing component.

[0062] One aspect of the present disclosure provides a vehicle, comprising: the aforementioned anti-collision structure.

[0063] A vehicle adopting the above-mentioned anti-collision structure can improve the anti-collision energy absorption effect, thereby being more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0065] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0066] Figure 1 is a schematic diagram of the structure of some embodiments of the vehicle according to the present disclosure;

[0067] Figure 2 and Figure 3A is a schematic structural diagram of some embodiments of the anti-collision structure according to the present disclosure;

[0068] Figure 3B is a schematic structural diagram of some other embodiments of the anti-collision structure disclosed in the present invention;

[0069] Figure 4 It is a schematic diagram of the structure and principle of the longitudinal beam bending and deforming to absorb energy under the pulling force according to the embodiment of the anti-collision structure disclosed in the present invention;

[0070] Figure 5 is a schematic diagram of an anti-collision structure embodiment according to the present disclosure being arranged on a vehicle;

[0071] Figure 6 It is a schematic diagram of the structure and principle of some embodiments of the anti-collision structure disclosed in the present invention;

[0072] Figure 7-10 They are respectively schematic diagrams of arrangement and connection structure of paired energy absorbing components and pulling members in some embodiments of the anti-collision structure disclosed in the present invention;

[0073] Fig.11 It is a schematic diagram of the structure and principle of the elastic member in the embodiment of the anti-collision structure disclosed in the present invention, which is stretched, deformed and absorbs energy under the pulling force;

[0074] Fig.12It is a schematic diagram of the structure and principle of the damper in the embodiment of the anti-collision structure disclosed in the present invention, which is stretched, deformed and absorbs energy due to the pulling force;

[0075] Fig.13 It is a schematic diagram of the structure and principle of the torsion bar twisting and deforming to absorb energy when the roller is subjected to a pulling force in the anti-collision structure embodiment disclosed in the present invention.

[0076] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. Description of reference numerals:

[0077] 10-energy absorbing assembly; 11-longitudinal beam; 12-energy absorbing box; 13-elastic member; 14-damper; 15-roller; 16-torsion bar;

[0078] 20- pulling member; 21- connector;

[0079] 30-vehicle; 31-anti-collision structure; 32-front cabin; 33-rear cabin; 34-energy cabin;

[0080] y-first direction; x, x', x''-second direction; z-third direction. DETAILED DESCRIPTION

[0081] The following embodiments of the technical solution of the present disclosure are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present disclosure, and are therefore only used as examples, and cannot be used to limit the protection scope of the present disclosure.

[0082] Unless otherwise defined, all technical and scientific terms used in the present disclosure have the same meanings as those commonly understood by technicians in the technical field to which the present disclosure belongs; the terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure; the terms "including" and "having" in the specification and claims of the present disclosure and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0083] In the description of the embodiments of the present disclosure, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present disclosure, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0084] Reference to "embodiments" in this disclosure means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the disclosure. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this disclosure may be combined with other embodiments.

[0085] In the description of the embodiments of the present disclosure, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, if the character " / " appears in the present disclosure, it generally indicates that the associated objects before and after are in an "or" relationship.

[0086] In the description of the embodiments of the present disclosure, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0087] In the description of the embodiments of the present disclosure, the term "at least one" refers to one or more than two (including two), similarly, "at least one group" refers to one group or more than two (including two), and "at least one piece" refers to one piece or more than two (including two). In the description of the embodiments of the present disclosure, the term "at least part" refers to part or all.

[0088] Unless otherwise specified, in the description of the embodiments of the present disclosure, technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present disclosure.

[0089] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0090] In some related technologies, an anti-collision beam is disposed at the front end of the parallel frame longitudinal beams, and transmits the collision force to the longitudinal beams when a collision occurs, so as to absorb and dissipate the crushing energy or the collision energy through the longitudinal beams.

[0091] Research has found that the anti-collision beam body in related technologies is easy to break and the joint structure with the longitudinal beam is easy to become unstable, which affects the absorption and dissipation of the longitudinal beam to the extrusion energy or collision energy. Moreover, when obstacles hit different positions in the middle of the anti-collision beam, the required strength of the joint structure between the anti-collision beam and the longitudinal beams on both sides is inconsistent, and it is often necessary to design according to higher strength requirements, which is not conducive to lightweight design.

[0092] In view of this, the embodiments of the present disclosure provide an anti-collision structure and a vehicle, which can improve the anti-collision energy absorption effect.

[0093] In one aspect of the present disclosure, there is provided an anti-collision structure for a vehicle, comprising:

[0094] A pair of longitudinal beams spaced apart along a first direction; and

[0095] At least one pulling member has two ends respectively connected to the pair of longitudinal beams and spans across the spacing space separated by the pair of longitudinal beams, wherein the at least one pulling member is configured to form a pulling force on the pair of longitudinal beams when squeezed or collided in a second direction intersecting the first direction.

[0096] In this embodiment, at least one pulling member spans the space between the pair of longitudinal beams spaced apart in the first direction, and the pulling member is used to receive collision or extrusion in a collision accident or other scenario, so as to convert the collision or extrusion in the second direction into a pulling force on the longitudinal beam, so that the longitudinal beam absorbs the extrusion energy or collision energy under the action of the pulling force. Compared with the anti-collision beam in the related art, whose main body is easy to break and whose joint is easy to lose stability, the pulling member can adjust its own shape and position and angle relative to the longitudinal beam according to the collision or extrusion, so as to apply traction to the pair of longitudinal beams.

[0097] Figure 1 is a schematic diagram of the structure of some embodiments of the vehicle according to the present disclosure. Figure 1 , an embodiment of the present disclosure provides a vehicle 30 , including the aforementioned anti-collision structure 31 .

[0098] The vehicle 30 includes, but is not limited to, a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended range vehicle, etc. The vehicle may be a commercial vehicle, an engineering vehicle, a special vehicle, or a household vehicle.

[0099] The anti-collision structure 31 can protect the occupants in the vehicle and reduce the damage to the vehicle by absorbing and dispersing the crushing energy or the collision energy when the vehicle 30 encounters a collision accident or the like. The anti-collision structure 31 can be arranged on the main frame or the sub-frame of the vehicle 30. Part of the structure of the anti-collision structure 31 can be installed on the main frame or the sub-frame, or can be manufactured together with the main frame or the sub-frame.

[0100] The anti-collision structure 31 may be located in the front cabin of the vehicle 30, in the rear cabin of the vehicle 30, or in the energy cabin of the vehicle 30. The energy cabin of the vehicle 30 may be used to store and manage the power source of the vehicle. For example, the energy cabin of a fuel vehicle is used to store a fuel tank, the energy cabin of a new energy vehicle is used to store a power battery, and the energy cabin of a gas vehicle is used to store a natural gas storage tank.

[0101] Figure 2 and Figure 3A It is a schematic structural diagram of some embodiments of the anti-collision structure according to the present disclosure. Figure 3B It is a schematic structural diagram of some other embodiments of the anti-collision structure according to the present disclosure. Figure 4 It is a schematic diagram of the structure and principle of the longitudinal beam bending and deforming to absorb energy when subjected to pulling force in the anti-collision structure embodiment disclosed in the present invention.

[0102] refer to Figure 2-Figure 4 The embodiment of the present disclosure provides an anti-collision structure 31 for a vehicle 30, comprising a pair of longitudinal beams 11 and at least one pulling member 20. The pair of longitudinal beams 11 are arranged at intervals along a first direction y, and at least one pulling member 20 is connected to the pair of longitudinal beams 11 at both ends, and spans the interval space separated by the pair of longitudinal beams 11. The at least one pulling member 20 can be configured to form a pulling force on the pair of longitudinal beams 11 when being squeezed or collided in a second direction intersecting the first direction y.

[0103] The paired longitudinal beams 11 can absorb the extrusion energy or collision energy under the action of the pulling force.

[0104] The paired longitudinal beams 11 are arranged at intervals along the first direction y. The longitudinal beams 11 may extend in the longitudinal direction of the vehicle, and the first direction y may be the transverse direction of the vehicle. In addition to connecting the pulling member 20, a space for the two longitudinal beams 11 to bend and a space for the pulling member 20 to retreat when it is collided or squeezed may be formed between the left and right longitudinal beams 11 in the transverse direction of the vehicle.

[0105] Figure 2 , Figure 3A and Figure 3B The figure shows a structure in which a pair of longitudinal beams 11 are arranged at intervals in the transverse direction of the vehicle, and it can be seen that there is a space between the longitudinal beam 11 on the left side and the longitudinal beam 11 on the right side. Figure 2 , Figure 3A and Figure 3BIn the embodiment, the pulling member 20 is connected to the pair of longitudinal beams 11 at both ends and spans the interval space between the two longitudinal beams.

[0106] The pulling member 20 may include but is not limited to a flexible pulling member, for example, the pulling member 20 includes a steel cable, a pulling plate, or a steel cable and pulling plate combination structure. The pulling member can form a pulling force on the longitudinal beam 11 when it is squeezed or collided. The end of the pulling member 20 is connected to the longitudinal beam 11, and can apply the pulling force to the longitudinal beam 11.

[0107] For the flexible pulling member, the pulling member 20 can be tensioned in a preset state without being collided or squeezed, so as to quickly transmit the pulling force to the longitudinal beam 11 and improve the response speed; the pulling member 20 can also be moderately relaxed, and a small amount of sagging is allowed under the action of gravity (for example, the sagging amount does not exceed 1% of the span of the wire rope, etc.), thereby meeting the need for timely transmission of the pulling force while reducing the material fatigue of the pulling member 20 caused by repeated loading and unloading under vibration and the like, which is beneficial to improving the service life of the pulling member 20.

[0108] One pulling member 20 may be arranged between the paired longitudinal beams 11, or a plurality of pulling members 20 may be arranged. The tensioning direction of the pulling member 20 may be parallel to the first direction y, or may intersect with the first direction y to form an angle.

[0109] One or more ends of the pulling member 20 are connected to the longitudinal beam 11. The connection between the pulling member 20 and the longitudinal beam 11 can be a fixed connection, such as a fixed connection by welding, bonding or binding. The connection between the pulling member 20 and the longitudinal beam 11 can also be a rotatable connection, such as a hinged connection by a pivot or a ball joint.

[0110] A transverse beam 12 may be included between the pair of longitudinal beams 11 , and the transverse beam 12 may be spaced apart from or connected to the tension member 20 .

[0111] Figure 4 It is a schematic diagram of the structure and principle of the longitudinal beam bending and deforming to absorb energy when subjected to pulling force in the anti-collision structure embodiment disclosed in the present invention.

[0112] Figure 4 A plurality of second directions x, x', x'' are shown, where the second direction x, x' or x'' intersects the first direction y, wherein the second direction x can be the longitudinal direction of the vehicle, and the second directions x' and x'' can be at an angle to the longitudinal direction of the vehicle. The second direction mainly depends on the direction of movement of the collision object relative to the pulling member 20.

[0113] For the pulling member 20, the collision or extrusion it is subjected to may come from a preset direction range. For example, the anti-collision structure arranged in the front cabin is mainly used for the collision or extrusion of the collision object from the front of the vehicle, the anti-collision structure arranged in the rear cabin is mainly used for the collision or extrusion of the collision object from the rear of the vehicle, and the anti-collision structure arranged in the energy cabin is mainly used for the collision or extrusion caused by the vehicle parts or external impact on the front or rear side of the energy cabin.

[0114] In this embodiment, at least one pulling member 20 spans the space separated by the pair of longitudinal beams 11 spaced apart along the first direction y, and the pulling member 20 is used to receive collision or extrusion in scenarios such as collision accidents, so as to convert the collision or extrusion in the second direction into a pulling force on the longitudinal beam 11, so that the longitudinal beam 11 is deformed under the action of the pulling force to absorb the extrusion energy or the collision energy.

[0115] Compared with the anti-collision beam in the related art, whose main body is easy to break and whose joints are easy to become unstable, the longitudinal beam 11 does not absorb energy directly through collision. The pulling member 20 withstands direct collision or extrusion in situations such as collision accidents, and adjusts its own shape as well as its position and angle relative to the longitudinal beam 11 under the action of collision or extrusion, and applies the extrusion energy or collision energy to the longitudinal beam 11 more evenly through traction. In this way, the pulling member 20 itself and its connection with the longitudinal beam 11 are not easy to fail in scenarios such as collision accidents, which is conducive to making the longitudinal beam 11 more fully absorb and dissipate the pulling force, thereby improving the energy absorption effect.

[0116] exist Figure 2 , Figure 3A and Figure 3B In the embodiment, the pulling members 20 are connected to the two longitudinal beams 11 respectively, and the connecting positions can be located at opposite sides of the two longitudinal beams 11 respectively, so that when a pulling force is applied to the two longitudinal beams 11, the two longitudinal beams 11 can be bent toward each other.

[0117] exist Figure 4 In (a), the two ends of the pulling member 20 are connected to the two longitudinal beams 11 through the joints 21, and the pulling member 20 is tensioned to be close to a straight line. When the collision object CO (such as a column, etc.) moves relative to the pulling member 20, Figure 4 (a) becomes Figure 4 In (b), the collision object CO forms a collision or compression (such as a column collision) on the middle area of ​​the pulling member 20 (not limited to the midpoint, but also including the part between the midpoint and the joint 21).

[0118] At this time, the collision object CO forms an extrusion force on the pulling member 20 in the second direction x, x' or x'', so that the pulling member 20 retreats and bends, forming a traction force on the longitudinal beams 11 on both sides. The longitudinal beams 11 on both sides are bent and deformed under the traction force of the pulling member 20, so that part of the extrusion energy or collision energy is dissipated and absorbed along with the bending deformation of the longitudinal beams 11.

[0119] The paired longitudinal beams 11 bend and deform to absorb energy when subjected to the pulling force of the at least one pulling member 20. When the pulling member 20 is collided or squeezed, the pulling member 20 pulls the longitudinal beams 11 on both sides inward, so that the longitudinal beams 11 on both sides bend inward. It can be seen that the longitudinal beams 11 on both sides have a relatively large bending deformation space on the inner side, thereby improving the energy absorption effect.

[0120] In some embodiments, the bending strength of each longitudinal beam 11 in the pair of longitudinal beams 11 is less than or equal to the tensile strength of the at least one pulling member 20 .

[0121] In order to prevent the pulling member from being damaged before the longitudinal beam 11 due to excessive traction when applying traction force to the longitudinal beam 11, the bending strength of each longitudinal beam 11 can be made less than or equal to the tensile strength of the at least one pulling member 20, so that the longitudinal beam 11 can bend and deform more fully to absorb and dissipate the extrusion energy or collision energy.

[0122] refer to Figure 2-Figure 4 In some embodiments, both ends of the at least one pulling member 20 have joints 21 connected to the paired longitudinal beams 11 , and the bending strength of each longitudinal beam 11 in the paired longitudinal beams 11 is less than or equal to the connection strength of the joints 21 .

[0123] In this embodiment, the joint 21 at the end of the pulling member 20 is connected to the longitudinal beam 11, and the relative position of the joint 21 and the longitudinal beam 11 can be adjusted as the pulling member 20 bends, thereby reducing the force and torque borne by the joint 21. In addition, in order to prevent the joint 21 from being damaged before the energy absorbing member due to excessive traction or torque when the pulling member applies traction to the energy absorbing member, the bending strength of the longitudinal beam 11 can be made less than or equal to the connection strength of the joint 21, so that the longitudinal beam 11 can absorb the extrusion energy or collision energy more fully.

[0124] refer to Figure 2 , Figure 3A and Figure 3B In some embodiments, the connection position between the joint 21 and the paired longitudinal beams 11 is located at the front end portion 111 of the paired longitudinal beams 11 in the opposite direction of the second direction or at the rear side of the front end portion 111 of the paired longitudinal beams 11.

[0125] Here, the opposite direction of the second direction is the direction from which the collision object comes. The end of the pulling member 20 can be connected to the front end 111 of the longitudinal beam 11, or it can be connected to other positions behind the front end 111, as long as the requirements for absorbing the extrusion energy or collision energy are met. Connecting the end of the pulling member 20 to the front end 111 of the longitudinal beam 11 is conducive to responding to the extrusion energy or collision energy earlier to absorb the energy. Connecting the end of the pulling member 20 to the rear position of the front end 111 of the longitudinal beam 11 is conducive to reducing the risk of damage or instability of the front end of the longitudinal beam 11 due to large local force.

[0126] refer to Figure 2 , Figure 3A and Figure 3B In some embodiments, the anti-collision structure 31 further includes an energy absorption box 12, which is disposed at the front end portion 111 and is configured to deform and absorb energy when subjected to compression or collision in the second direction.

[0127] The energy absorbing box 12 can be located in front of the pulling member 20 in the opposite direction of the second direction, and can absorb energy by plastic deformation when subjected to pressure. When the collision object CO moves toward the anti-collision structure along the second direction, it may collide with the energy absorbing box 12 first and undergo plastic deformation. On the one hand, this can absorb the extrusion energy or collision energy and reduce the damage to the longitudinal beam and other key components of the vehicle; on the other hand, when the collision force is relatively limited and does not cause obvious deformation of the longitudinal beam 11, the energy absorbing box 12 can be quickly replaced to reduce maintenance costs and improve the repairability of the vehicle.

[0128] refer to Figure 2 , Figure 3A and Figure 3B In some embodiments, the joint 21 is hinged to the pair of longitudinal beams 11 .

[0129] exist Figure 2 , Figure 3A and Figure 3B In the embodiment, the joint 21 can be hinged to the longitudinal beam 11 through a pivot. For example, a hinge seat is fixedly installed on the longitudinal beam 11 by bolts, and the joint 21 is connected to the hinge seat through a pivot in the form of a slip ring, so that the force direction between the joint 21 and the longitudinal beam 11 can be adaptively adjusted as the angle of the pulling member 20 changes, thereby reducing the joint pressure. In other embodiments, the joint 21 can also be hinged to the longitudinal beam 11 in other forms such as a ball joint.

[0130] Figure 5 Schematic diagram of an anti-collision structure according to an embodiment of the present disclosure being arranged on a vehicle. Figure 5 In some embodiments, the paired longitudinal beams 11 are at least one of a paired front longitudinal beams, a paired rear longitudinal beams, and a paired longitudinal beam of an energy cabin frame.

[0131] For the paired front longitudinal beams, the paired front longitudinal beams can cooperate with the pulling member 20 to realize the forward anti-collision protection of the front cabin 32. For the paired rear longitudinal beams, the paired rear longitudinal beams can cooperate with the pulling member 20 to realize the rearward anti-collision protection of the rear cabin 32. For the paired longitudinal beams of the energy cabin frame, the paired longitudinal beams can cooperate with the pulling member 20 to realize the anti-collision protection of the energy cabin 34.

[0132] The longitudinal beam 11 can be assembled to the main frame or subframe of the vehicle 30 by welding or by connecting with a connecting piece, and then the anti-collision structure 31 is installed on the main frame or subframe of the vehicle 30 by connecting the pulling member 20 with the paired longitudinal beams 11. The longitudinal beam can also be made integrally with the main frame or subframe of the vehicle when the frame is manufactured.

[0133] In this embodiment, the paired front longitudinal beams, the paired rear longitudinal beams and the paired longitudinal beams of the energy cabin frame can cooperate with the pulling member 10 to achieve effective anti-collision protection for the front cabin 32, the rear cabin 33 and the energy cabin 34 of the vehicle 30, improve the safety of the passengers in the vehicle, and reduce the damage to the vehicle components.

[0134] In some embodiments, the first direction y is the lateral direction of the vehicle 30 .

[0135] In this embodiment, the first direction y is set to the lateral direction of the vehicle 30, so that the pulling member 20 across the transversely spaced longitudinal beams 11 can easily convert the collision or compression from the longitudinal direction of the vehicle 30 into a pulling force on the pairs of transversely spaced longitudinal beams 11, thereby realizing the anti-collision protection of the vehicle 30 in the longitudinal direction through the deformation and energy absorption of the longitudinal beams 11.

[0136] In some embodiments, the at least one pulling member 20 is pre-tensioned or tensioned along the first direction y.

[0137] In this embodiment, by pre-tensioning or tensioning the pulling member 20 along the first direction y, the response speed of the pulling member 20 can be increased.

[0138] In some embodiments, the anti-collision structure 31 further includes a tension member vibration absorbing device, which is used to eliminate the vibration caused by the tension member 20 and improve the NVH (Noise, Vibration, and Harshness) performance of the vehicle.

[0139] In this embodiment, by providing a pulling member vibration absorbing device, the vibration caused by the pulling member 20 can be eliminated, thereby improving the NVH performance of the vehicle.

[0140] refer to Figure 3B In some embodiments, a cross beam 13 is connected between the pair of longitudinal beams 11 , and at least a portion of the at least one pulling member 20 is embedded in the cross beam 13 .

[0141] The cross beam 13 can be arranged in front of the pull member 20 along the second direction so as to receive collision or compression before the pull member 20, or can be arranged in parallel with the pull member 20 or behind the pull member 20 along the second direction. The cross beam 13 can be arranged to have a hollow portion so as to accommodate the whole or part of the pull member.

[0142] In this embodiment, a part or the whole of the pulling member is embedded in the cross beam, so that the space occupied by the pulling member can be reduced through the cross beam, and it is helpful to eliminate the vibration and noise of the pulling member.

[0143] In some embodiments, the puller 20 comprises a flexible puller.

[0144] In this embodiment, the flexible pulling member can change its shape more evenly under the action of collision or extrusion so as to apply traction force to the longitudinal beam 11 more evenly, making it less likely for the pulling member 20 and its connection with the longitudinal beam 11 to fail in scenarios such as collision accidents, thereby helping the longitudinal beam 11 to more fully absorb and dissipate extrusion energy or collision energy.

[0145] Figure 6 It is a schematic diagram of the structure and principle of some embodiments of the anti-collision structure according to the present disclosure. Figure 7-10 The following are schematic diagrams of the arrangement and connection structure of the paired energy absorbing components and the pulling members in some embodiments of the anti-collision structure disclosed in the present invention. Figure 6-Figure 10 , an embodiment of the present disclosure provides an anti-collision structure 31 for a vehicle 30. The anti-collision structure 31 includes: a pair of energy absorbing components 10 and at least one pulling member 20. The pair of energy absorbing components 10 are arranged at intervals along a first direction y, and are configured to deform and absorb energy when subjected to a pulling force. Both ends of at least one pulling member 20 are respectively connected to the pair of energy absorbing components 10, and span the interval space separated by the pair of energy absorbing components 10. The at least one pulling member 20 is configured to form a pulling force on the pair of energy absorbing components 10 when it is squeezed or collided in a second direction intersecting the first direction y.

[0146] The paired energy absorbing components 10 can absorb the extrusion energy or the collision energy under the action of the pulling force.

[0147] Figure 6 (a) shows a structure in which a pair of energy absorbing components 10 are spaced apart along the first direction y, and it can be seen that there is a spaced interval between the energy absorbing component 10 on the left and the energy absorbing component 20 on the right. Figure 6 In (a), the two ends of the pulling member 20 are connected to the pair of energy absorbing components 10 and span the interval space between the two. Figure 7-10As shown, the paired energy absorbing components 10 include but are not limited to a one-to-one relationship between two energy absorbing components 10 , and may also include a one-to-many, many-to-one or many-to-many relationship between the energy absorbing components 10 .

[0148] Figure 6 (b) illustrates the energy absorbing component 10 deforming and absorbing energy after being subjected to the pulling force through the dotted frame. The energy absorbing component 10 can deform to absorb energy when subjected to the pulling force of the pulling member 20. The deformation of the energy absorbing component 10 may include but is not limited to bending deformation, extension deformation, torsional deformation, etc.

[0149] The pulling member 20 may include but is not limited to a flexible pulling member, for example, the pulling member 20 includes a steel cable, a pulling plate, or a steel cable and pulling plate combination structure. The pulling member 20 can form a pulling force on the energy absorbing assembly 10 when it is squeezed or collided. The end of the pulling member 20 is connected to the energy absorbing assembly 10, and can apply the pulling force to the energy absorbing assembly 10.

[0150] For the flexible pulling member, the pulling member 20 can be tensioned in a preset state without being collided or squeezed, so as to quickly transmit the pulling force to the energy absorbing component 10 and improve the response speed; the pulling member 20 can also be moderately relaxed, and a small amount of sagging is allowed under the action of gravity (for example, the sagging amount does not exceed 1% of the span of the wire rope, etc.), thereby meeting the need for timely transmission of the pulling force while reducing the material fatigue of the pulling member 20 caused by repeated loading and unloading under vibration and the like, which is beneficial to improving the service life of the pulling member 20.

[0151] refer to Figure 6-Figure 10 One pulling member 20 may be arranged between the paired energy absorbing components 10, or a plurality of pulling members 20 may be arranged. The tensioning direction of the pulling member 20 may be parallel to the first direction y, for example, Figure 6 , Figure 8 and Fig.10 In the embodiment, the tensioning direction of each pulling member 20 is parallel to the first direction y. The tensioning direction of the pulling member 20 may also intersect with the first direction y to form an angle. Figure 7 and Fig. 9 In the embodiment, the multiple crossed pulling members 20 respectively intersect with the first direction y to form an angle.

[0152] One or more ends of the pulling member 20 are connected to the energy absorbing assembly 10. The connection between the pulling member 20 and the energy absorbing assembly 10 may be a fixed connection, such as a fixed connection by welding, bonding or bundling. The connection between the pulling member 20 and the energy absorbing assembly 10 may also be a rotatable connection, such as a hinged connection by a pivot or a ball joint.

[0153] exist Figure 6A plurality of second directions x, x', x'' are shown, where the second direction x, x' or x'' intersects with the first direction y. The first direction y may be the lateral direction of the vehicle, and the second direction x may be the longitudinal direction of the vehicle, which is perpendicular to the first direction y. The second directions x' and x'' may be directions intersecting the lateral direction of the vehicle and not perpendicular to it. The second direction may be parallel to the horizontal plane, or may be at a certain angle to the horizontal plane, and the specific direction mainly depends on the relative movement direction between the collision object and the pulling member 20.

[0154] For the pulling member 20, the collision or extrusion it is subjected to may come from a preset direction range. For example, the anti-collision structure arranged in the front cabin is mainly used for the collision or extrusion of the collision object from the front of the vehicle, the anti-collision structure arranged in the rear cabin is mainly used for the collision or extrusion of the collision object from the rear of the vehicle, and the anti-collision structure arranged in the energy cabin is mainly used for the collision or extrusion caused by the vehicle parts or external impact on the front or rear side of the energy cabin.

[0155] In this embodiment, at least one pulling member 20 spans the space between the pairs of energy absorbing components 10 spaced apart along the first direction y, and the pulling member is used to receive collision or extrusion in scenarios such as collision accidents, so as to convert the collision or extrusion in the second direction into a pulling force on the energy absorbing component 10, so that the energy absorbing component 10 is deformed under the action of the pulling force to absorb the extrusion energy or collision energy.

[0156] Compared with the anti-collision beam in the related art, whose main body is easy to break and whose joints are easy to become unstable, the energy absorbing component 10 does not absorb energy directly through collision. The pulling member 20 withstands direct collision or extrusion in situations such as collision accidents, and adjusts its own shape as well as its position and angle relative to the energy absorbing component 10 under the action of collision or extrusion, and applies the extrusion energy or collision energy to the energy absorbing component 10 more evenly through traction. In this way, the pulling member 20 itself and its connection with the energy absorbing component 10 are not easy to fail in scenarios such as collision accidents, which is conducive to the energy absorbing component 10 to more fully absorb and dissipate the pulling force, thereby improving the energy absorption effect.

[0157] In some embodiments, at least one puller 20 comprises a flexible puller.

[0158] In this embodiment, the flexible pulling member can change its shape more evenly under the action of collision or extrusion so as to apply traction force to the energy absorbing assembly 10 more evenly, making it less likely for the pulling member 20 and its connection with the energy absorbing assembly 10 to fail in scenarios such as collision accidents, thereby facilitating the energy absorbing assembly 10 to more fully absorb and dissipate extrusion energy or collision energy.

[0159] In some embodiments, the flexible pulling member 20 includes at least one of a metal rope, a natural fiber rope, a synthetic fiber rope, and a composite fiber rope.

[0160] In order to effectively transmit the collision or squeezing force to the energy absorbing assembly 10, the flexible pulling member has high toughness and strength. The flexible pulling member can be a metal rope such as a steel rope that is easily available, or a synthetic fiber rope such as a carbon fiber that has high toughness and strength, or a natural fiber rope or a composite fiber rope that can meet the toughness and strength requirements.

[0161] In this embodiment, at least one of metal ropes, natural fiber ropes, synthetic fiber ropes and composite fiber ropes is used to realize the flexible pulling member, which can effectively transmit the collision or extrusion force to the energy absorbing component 10.

[0162] refer to Figure 6 In some embodiments, the at least one pulling member 20 is pre-tensioned or tensioned along the first direction y.

[0163] In this embodiment, at least one pulling member 20 pre-tensioned or tensioned along the first direction y is used to receive collision or compression, so that the response speed of the pulling member 20 can be improved.

[0164] refer to Figure 6 In some embodiments, the anti-collision structure 31 includes a single pulling member 20, and the single pulling member 20 is tensioned along the first direction y.

[0165] In this embodiment, a single pulling member 20 tensioned along the first direction y is used to withstand collision or extrusion, which can simplify the anti-collision structure, facilitate installation and maintenance, and help reduce weight and cost.

[0166] refer to Figure 7-10 In some embodiments, the anti-collision structure 31 includes a plurality of pulling members 20, at least some of which are parallel to or cross each other.

[0167] exist Figure 7 and Figure 8 In the embodiment, the anti-collision structure 31 includes two energy absorbing components 10 in a pair, and a plurality of pull members 20 are arranged between the two energy absorbing components 10. The plurality of pull members 20 may be as follows: Figure 7 The cross-connection arrangement shown can also be Figure 8 The shown arrangements are parallel to each other.

[0168] exist Fig. 9 In the embodiment, the anti-collision structure 31 may include three energy absorbing components 10 in a two-to-one ratio, wherein two energy absorbing components 10 on the left side and one energy absorbing component 10 on the right side form a pair of energy absorbing components 10. Fig.10 In the embodiment, the anti-collision structure 31 may include four energy absorbing components 10 in a two-to-two arrangement, wherein two energy absorbing components 10 on the left and two energy absorbing components 10 on the right form a pair of energy absorbing components 10 .

[0169] Correspondingly, the anti-collision structures 31 each include a plurality of pulling members 20 . Fig. 9 The left ends of the two pulling members 20 are respectively connected to the two energy absorbing components 10 on the left, and the right ends are commonly connected to an energy absorbing component 10 on the right. The two pulling members 20 intersect at the right end. Fig.10 The left ends of the two pulling members 20 are respectively connected to the two energy absorbing components 10 on the left, and the right ends are respectively connected to the two energy absorbing components 10 on the left. The two pulling members 20 are parallel to each other.

[0170] For the plurality of pulling members 20 , the plurality of pulling members 20 may be arranged at intervals along a third direction z, and the third direction z intersects both the first direction y and the second direction. For example, the third direction z may be parallel to the vertical direction.

[0171] In this embodiment, multiple pulling members 20 that are at least partially parallel or crossed with each other are used to accept collision or extrusion, which can improve the overall tensile strength of the multiple pulling members 20, improve the bearing capacity and reliability, and help to enrich the form of the anti-collision structure so that it can be adaptively set according to the specific needs of the area that needs anti-collision protection.

[0172] In the above embodiment, Figure 6 Taking the anti-collision structure in which a pulling member 20 is connected between two energy absorbing components as an example, in other embodiments described below, Fig.11 , Fig.12 and Fig.13 Other combinations of energy absorbing members and pulling members with different numbers and matching forms are also applicable to these embodiments, which will not be described in detail later.

[0173] Fig.11 It is a schematic diagram of the structure and principle of the elastic part in the anti-collision structure embodiment disclosed in the present invention, which is stretched, deformed and absorbs energy when subjected to pulling force.

[0174] refer to Fig.11 In some embodiments, at least one of the multiple energy absorbing members includes an elastic member 13, an end of the at least one pulling member 20 is connected to the elastic member 13, and the elastic member 13 is configured to undergo tensile deformation and absorb energy when subjected to the pulling force of the at least one pulling member 20.

[0175] The elastic member 13 may include an elastic body, a spring, etc. Fig.11 In (a), the two ends of the pulling member 20 are connected to the two elastic members 13 through the joints 21, and the pulling member 20 is tensioned to be close to a straight line. Fig.11 (a) becomes Fig.11In (b), the collision object CO forms an extrusion on the middle part of the pulling member 20 (not limited to the midpoint, but also including the part between the midpoint and the joint 21).

[0176] At this time, the collision object CO forms an extrusion force on the pulling member 20 in the second direction x, x' or x'', so that the pulling member 20 bends and forms a traction force on the two elastic members 13 on both sides. The two elastic members 13 extend and deform under the traction force of the pulling member 20, so that the extrusion energy or collision energy is dissipated and absorbed as the elastic members 13 extend and deform.

[0177] In this embodiment, energy absorption is achieved through the extension and deformation of the elastic body 13, and good rebound performance can be achieved, so that it is easy to return to its original state after a normal degree of collision, reducing vehicle damage and facilitating maintenance.

[0178] In some embodiments, the tensile strength of the elastic member 13 is less than or equal to the tensile strength of the at least one pulling member 20 .

[0179] In order to prevent the pulling member from being damaged before the elastic member 13 due to excessive pulling force when applying pulling force to the elastic member 13, the tensile strength of the elastic member 13 can be made less than or equal to the tensile strength of the at least one pulling member 20, so that the elastic member 13 can absorb the extrusion energy or collision energy more fully.

[0180] refer to Fig.11 In some embodiments, the end of the at least one pulling member 20 has a joint 21 connected to the elastic member 13 , and the tensile strength of the elastic member 13 is less than or equal to the connection strength of the joint 21 .

[0181] exist Fig.11 In the embodiment, the joint 21 can be fixedly connected or rotatably connected to the elastic member 13. In order to reduce the force and torque borne by the joint 21, the joint 21 can be hinged to the elastic member 13 through a pivot. In other embodiments, the joint 21 can also be hinged to the elastic member 13 through a ball joint. In this way, the joint 21 at the end of the pulling member 20 is hinged to the elastic member 13, and the relative position of the joint 21 and the elastic member 13 can be adjusted as the pulling member 20 bends, thereby reducing the force and torque borne by the joint 21.

[0182] In order to prevent the joint 21 from being damaged before the elastic member 13 due to excessive traction or torque when the pulling member applies traction to the elastic member 13, the bending strength of the elastic member 13 can be made less than or equal to the connection strength of the joint 21, so that the elastic member 13 can absorb the extrusion energy or collision energy more fully.

[0183] Fig.12This is a schematic diagram of the structure and principle of the damper in the embodiment of the anti-collision structure disclosed in the present invention, which is stretched and deformed to absorb energy under the pulling force. Fig.12 In some embodiments, at least one of the multiple energy absorbing members includes a damper 14, an end of the at least one pulling member 20 is connected to the damper 14, and the damper 14 is configured to undergo tensile deformation and absorb energy when subjected to the pulling force of the at least one pulling member 20.

[0184] The damper 14 may include a gas damper, a liquid damper, etc. Fig.12 In (a), the two ends of the pulling member 20 are connected to the two dampers 14 through the joints 21, and the pulling member 20 is tensioned to be close to a straight line. Fig.12 (a) becomes Fig.12 In (b), the collision object CO forms an extrusion on the middle part of the pulling member 20 (not limited to the midpoint, but also including the part between the midpoint and the joint 21).

[0185] At this time, the collision object CO forms an extrusion force on the pulling member 20 in the second direction x, x' or x'', so that the pulling member 20 bends and forms a traction force on the two dampers 14 on both sides. The two dampers 14 extend and deform under the traction force of the pulling member 20, so that the extrusion energy or collision energy is dissipated and absorbed as the energy absorbing member extends and deforms.

[0186] In this embodiment, the extension deformation of the damper 14 can provide continuous resistance, prolonging the action time between the collision object and the anti-collision structure, so that the extrusion energy or collision energy can be dissipated and absorbed by the damper 14 in a relatively longer period of time.

[0187] In some embodiments, the maximum damping force of the damper 14 is less than or equal to the tensile strength of the at least one pulling member 20 .

[0188] In order to prevent the pulling member from being damaged before the damper 14 due to excessive traction when the traction member applies traction to the damper 14, the maximum damping force of the damper 14 can be made less than or equal to the tensile strength of the at least one pulling member 20, so that the damper 14 can absorb the extrusion energy or collision energy more fully.

[0189] refer to Fig.12 In some embodiments, the end of the at least one pulling member 20 has a joint 21 connected to the damper 14 , and the maximum damping force of the damper 14 is less than or equal to the connection strength of the joint 21 .

[0190] exist Fig.12In the embodiment, the joint 21 can be fixedly connected or rotatably connected to the damper 14. In order to reduce the force and torque borne by the joint 21, the joint 21 can be hinged to the damper 14 through a pivot. In other embodiments, the joint 21 can also be hinged to the damper 14 through a ball joint. In this way, the joint 21 at the end of the pulling member 20 is hinged to the damper 14, and the relative position of the joint 21 and the damper 14 can be adjusted as the pulling member 20 bends, thereby reducing the force and torque borne by the joint 21.

[0191] In order to prevent the joint 21 from being damaged before the damper 14 due to excessive traction or torque when the pulling member 20 applies traction to the damper 14, the bending strength of the damper 14 can be made less than or equal to the connection strength of the joint 21, so that the damper 14 can absorb the extrusion energy or collision energy more fully.

[0192] Fig.13 This is a schematic diagram of the structure and principle of the torsion bar twisting and deforming to absorb energy when the roller is subjected to a pulling force in the anti-collision structure embodiment of the present disclosure. Fig.13 In some embodiments, at least one of the multiple energy absorbing members includes a roller 15 and a torsion bar 16, the end of the at least one pulling member 20 is connected to the roller 15 and partially wrapped around the outer circumference of the roller 15, the roller 15 is coaxially fixedly connected to the torsion bar 16, and the torsion bar 16 is configured to undergo torsional deformation to absorb energy when the roller 15 is subjected to the pulling force of the at least one pulling member 20.

[0193] exist Fig.13 In (a), both ends of the pulling member 20 are connected to the two rollers 15 respectively and are respectively wound around the outer circumferential surfaces of the two rollers 15. The torsion bar 16 can be coaxially fixedly connected to the roller 15 by key connection, interference connection or welding, or can be integrally formed with the roller 15.

[0194] The pulling member 20 can be tensioned to be close to a straight line. When the collision object CO moves relative to the pulling member 20, Fig.13 (a) becomes Fig.13 In (b), the collision object CO forms an extrusion on the middle part of the pulling member 20 (not limited to the midpoint, but also including the part between the midpoint and the joint 21).

[0195] At this time, the collision object CO forms an extrusion force on the pulling member 20 in the second direction x, x' or x'', so that the pulling member 20 bends and forms a traction force on the rollers 15 on both sides. The rollers 15 are angularly displaced under the traction force of the pulling member 20, driving the torsion bar 16 to twist and deform, so that part of the extrusion energy or collision energy is dissipated and absorbed along with the torsion deformation of the torsion bar 16.

[0196] In this embodiment, the roller 15 and the torsion bar 16 can realize a more compact structure, reduce space occupation, and can also be used to achieve the pre-tensioning force of the pulling member 20.

[0197] In some embodiments, the torsional strength of the torsion bar 16 is less than or equal to the tensile strength of the at least one pulling member 20 .

[0198] In order to prevent the pulling member from being damaged before the torsion bar 16 due to excessive traction when applying traction to the roller 15, the torsional strength of the torsion bar 16 can be made less than or equal to the tensile strength of the at least one pulling member 20, so that the torsion bar 16 can absorb the extrusion energy or collision energy more fully.

[0199] With reference to the above embodiments, the energy absorbing assembly 10 is not limited to a single type of energy absorbing method, and may include a deformation energy absorbing method or a non-deformation energy absorbing method. Furthermore, the deformation energy absorbing methods can be combined, such as a combination of bending deformation and stretching deformation, or a combination of bending deformation and torsional deformation.

[0200] The anti-collision structure 31 of each of the above embodiments can be used in various types of vehicles 30. Therefore, in one aspect of the present disclosure, a vehicle 30 is provided, comprising the anti-collision structure 31 of any of the above embodiments.

[0201] The vehicle 30 adopting the above-mentioned anti-collision structure 31 can improve the anti-collision energy absorption effect, thereby being more reliable.

[0202] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0203] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. An anti-collision structure (31), used for a vehicle (30), comprising: A pair of longitudinal beams (11) arranged at intervals along a first direction (y); and At least one pulling member (20) has two ends respectively connected to the pair of longitudinal beams (11) and spans across the spacing space separated by the pair of longitudinal beams (11); wherein the at least one pulling member (20) is configured to generate a pulling force on the pair of longitudinal beams (11) when squeezed or collided in a second direction intersecting the first direction (y).

2. The anti-collision structure (31) according to claim 1, wherein the paired longitudinal beams (11) absorb extrusion energy or collision energy under the action of the pulling force.

3. The anti-collision structure (31) according to claim 1 or 2, wherein: The bending strength of each longitudinal beam (11) in the pair of longitudinal beams (11) is less than or equal to the tensile strength of the at least one pulling member (20).

4. The anti-collision structure (31) according to any one of claims 1 to 3, wherein: Both ends of the at least one pulling member (20) have joints (21) connected to the pair of longitudinal beams (11), and the bending strength of each longitudinal beam (11) in the pair of longitudinal beams (11) is less than or equal to the connection strength of the joints (21).

5. The anti-collision structure (31) according to claim 4, wherein: The connection position between the joint (21) and the paired longitudinal beams (11) is located at the front end portion (111) of the paired longitudinal beams (11) in the direction opposite to the second direction or at the rear side of the front end portion (111) of the paired longitudinal beams (11).

6. The anti-collision structure (31) according to claim 5, further comprising: The energy absorption box (12) is arranged at the front end portion (111) and is configured to deform and absorb energy when subjected to compression or collision in the second direction.

7. The anti-collision structure (31) according to any one of claims 4 to 6, wherein: The joint (21) is hingedly connected to the pair of longitudinal beams (11).

8. The anti-collision structure (31) according to any one of claims 1 to 7, wherein: The paired longitudinal beams (11) are at least one of paired front longitudinal beams, paired rear longitudinal beams, and paired longitudinal beams of an energy cabin frame.

9. The anti-collision structure (31) according to any one of claims 1 to 8, wherein: The first direction (y) is the lateral direction of the vehicle (30).

10. The anti-collision structure (31) according to any one of claims 1 to 9, wherein: The at least one tensioning element (20) is pre-tensioned or tensioned along the first direction (y).

11. The anti-collision structure (31) according to any one of claims 1 to 10, further comprising a pulling member vibration absorbing device, which is used to eliminate the vibration caused by the pulling member (20) and improve the NVH performance of the vehicle.

12. The anti-collision structure (31) according to any one of claims 1 to 11, wherein: A crossbeam (12) is connected between the pair of longitudinal beams (11), and at least a portion of the at least one pulling member (20) is embedded in the crossbeam (12).

13. The anti-collision structure (31) according to any one of claims 1 to 12, wherein: The pulling member (20) comprises a flexible pulling member.

14. An anti-collision structure (31), for a vehicle (30), comprising: A pair of energy absorbing components (10) are arranged at intervals along a first direction (y) and are configured to deform and absorb energy when subjected to a pulling force; and At least one pulling member (20) has two ends respectively connected to the pair of energy absorbing components (10) and spans across the spacing space separating the pair of energy absorbing components (10); the at least one pulling member (20) is configured to generate a pulling force on the pair of energy absorbing components (10) when it is squeezed or collided in a second direction intersecting the first direction (y).

15. The crash protection structure (31) according to claim 14, wherein: The paired energy absorbing components (10) absorb extrusion energy or collision energy under the action of pulling force.

16. The crash structure (31) according to claim 14 or 15, wherein: At least one of the paired energy absorbing components (10) comprises an elastic member (13), an end of the at least one pulling member (20) is connected to the elastic member (13), and the elastic member (13) is configured to undergo tensile deformation and absorb energy when subjected to a pulling force from the at least one pulling member (20).

17. The crash protection structure (31) according to claim 16, wherein: The tensile strength of the elastic member (13) is less than or equal to the tensile strength of the at least one pulling member (20).

18. The crash protection structure (31) according to claim 17, wherein: The end of the at least one pulling member (20) has a joint (21) connected to the elastic member (13), and the tensile strength of the elastic member (13) is less than or equal to the connection strength of the joint (21).

19. The crash structure (31) according to claim 14 or 15, wherein: At least one of the paired energy absorbing components (10) comprises a damper (14), an end of the at least one pulling member (20) is connected to the damper (14), and the damper (14) is configured to absorb energy by undergoing tensile deformation when subjected to a pulling force from the at least one pulling member (20).

20. The crash protection structure (31) according to claim 19, wherein: The maximum damping force of the damper (14) is less than or equal to the tensile strength of the at least one pulling member (20).

21. The crash protection structure (31) according to claim 20, wherein: The end of the at least one pulling member (20) has a joint (21) connected to the damper (14), and the maximum damping force of the damper (14) is less than or equal to the connection strength of the joint (21).

22. The crash structure (31) according to claim 14 or 15, wherein: At least one of the paired energy absorbing components (10) comprises a roller (15) and a torsion bar (16); an end of the at least one pulling member (20) is connected to the roller (15) and is partially wrapped around the outer circumference of the roller (15); the roller (15) and the torsion bar (16) are coaxially fixedly connected; and the torsion bar (16) is configured to undergo torsional deformation to absorb energy when the roller (15) is subjected to a pulling force from the at least one pulling member (20).

23. The crash protection structure (31) according to claim 22, wherein: The torsion strength of the torsion bar (16) is less than or equal to the tensile strength of the at least one pulling member (20).

24. The anti-collision structure (31) according to any one of claims 14 to 23, wherein: The at least one tensioning element (20) is pre-tensioned or tensioned along the first direction (y).

25. The anti-collision structure (31) according to any one of claims 14 to 24, wherein: The anti-collision structure (31) comprises a plurality of pulling members (20), and at least parts of the plurality of pulling members (20) are mutually parallel or mutually intersecting.

26. The anti-collision structure (31) according to any one of claims 14 to 25, wherein: The at least one pull member (20) comprises a flexible pull member.

27. The crash protection structure (31) according to claim 13 or 26, wherein: The flexible pulling member includes at least one of a metal rope, a natural fiber rope, a synthetic fiber rope and a composite fiber rope.

28. A vehicle (30), comprising: The anti-collision structure (31) according to claims 1 to 13, or the anti-collision structure (31) according to any one of claims 14 to 27.

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