Joint device and vehicle body

Abstract

The invention discloses a connector device and a vehicle body, in order to solve the technical problem, according to the technical scheme, the connector device is provided and comprises a frame body, the frame body comprises a plurality of side walls connected in sequence, and a frame body inner space is formed in the side walls; the at least one side wall is configured to be connected with an external component; and the at least one reinforcing piece is configured in the internal space of the frame body, the reinforcing piece is connected with the side wall, a plurality of accommodating spaces are formed in the internal space of the frame body, and a reinforcing structure is arranged in at least one of the accommodating spaces. By means of the mode, the frame body can achieve connection among a plurality of external components, the reinforcing structure is arranged, the structural strength of the frame body can be enhanced, force can be better conducted, and therefore a good lateral pushing supporting function is provided.

Description

Technical Field

[0001] The present application belongs to the field of automobile parts, and specifically relates to a joint device and a vehicle body. Background Art

[0002] In some vehicles, such as fuel vehicles, electric vehicles or hybrid vehicles, it is necessary to connect the longitudinal beam to the energy absorption box through a joint device. Based on vehicle safety considerations, the longitudinal beam, energy absorption box and joint device need to meet the vehicle safety requirements for full-width head-on collision, double-vehicle collision and front center column collision. In the lateral collision of the longitudinal beam, it is difficult for the longitudinal beam to play a role. Therefore, the use of existing joint devices will make the overall strength of the relevant parts of the longitudinal beam of the vehicle body insufficient and cannot provide a good side thrust support function. Summary of the invention

[0003] The present application provides a joint device and a vehicle body, which can solve the problem that the overall strength of the relevant parts of the vehicle body longitudinal beam is insufficient and cannot provide a good side thrust support function.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a joint device, which includes: a frame, including a plurality of side walls connected in sequence, and an internal space of the frame is formed inside the plurality of side walls; at least one side wall is configured to be used for connecting external components; at least one reinforcement member is configured in the internal space of the frame, the reinforcement member is connected to the side wall, and a plurality of accommodating spaces are formed in the internal space of the frame, and a reinforcement structure is provided in at least one of the accommodating spaces.

[0005] Through the above-mentioned method, the frame can realize the connection between multiple external components, and has a reinforcing structure to enhance the structural strength of the frame, which can better transmit the force, thereby providing a good side-pushing support function.

[0006] In some embodiments, one of the accommodating spaces can be configured to be connected to a vehicle body longitudinal beam, and at least one accommodating space having a reinforcement structure is arranged on an outer side of the vehicle body longitudinal beam away from a center of the vehicle body.

[0007] In this way, the force of other external components connected to the frame can be transmitted to the longitudinal beam of the vehicle body, so that the longitudinal beam of the vehicle body can form a good side thrust support function. In addition, the frame directly connects multiple different external components to form a frame structure, which can enhance the overall strength of the connection area between the longitudinal beam of the vehicle body and the joint device.

[0008] In some embodiments, the frame includes a first side wall, a second side wall, a third side wall and a fourth side wall connected in sequence, and the first side wall, the second side wall and the third side wall are connected to different external components; the reinforcement includes a first reinforcement and a plurality of second reinforcements, wherein the first reinforcement is located between the second side wall and the fourth side wall, one end of the first reinforcement is connected to the first side wall, and the other end is connected to the third side wall; a plurality of second reinforcements, one end of which is connected to the second side wall, the other end of which is connected to the fourth side wall, and are cross-connected with the first reinforcement, and at least two of the second reinforcements, the first reinforcement and the second side wall form a first accommodating space; the joint device also includes a fixing plate, which is arranged in the first accommodating space and is connected to the first reinforcement, the second reinforcement and the second side wall.

[0009] The first reinforcement member and the second reinforcement member are cross-connected to each other to form a criss-cross structure in the internal space of the frame, thereby enhancing the structural strength of the joint device. At the same time, multiple areas surrounded by side walls, the first reinforcement member, and the second reinforcement member are constructed in the internal space of the frame. These areas can be used to receive and install external components, or reinforcement structures can be added in the areas to improve the overall structural strength of the joint device.

[0010] In some embodiments, a first fixing hole is provided on the first side wall, a second fixing hole is provided on the second side wall, a third fixing hole is provided on the third side wall, a fourth fixing hole is provided on the fourth side wall, and the second side wall and the fourth side wall are fixed to the same external component.

[0011] The second side wall and the fourth side wall are fixed with the same external component at the same time, which can enhance the fixing strength of the external component and thus enhance the overall strength.

[0012] In some embodiments, the first fixing hole and the third fixing hole are threaded holes, and metal threaded sleeves are embedded in the first fixing hole and the third fixing hole.

[0013] Embedding a metal threaded sleeve in a threaded hole can enhance the strength of the fixing hole, thereby improving the connection strength of the joint device.

[0014] In some embodiments, at least two of the second reinforcement members, the first reinforcement member and the fourth side wall form a second accommodating space adjacent to the first accommodating space, and a first reinforcement structure is disposed in the second accommodating space, and the first reinforcement structure connects the second reinforcement member, the first reinforcement member and the fourth side wall.

[0015] The second accommodating space is located to the side of the first accommodating space and is provided with a first reinforcing structure with greater strength, so that when the joint device is subjected to impact force from the side of the longitudinal beam, it can withstand and absorb greater impact force and easily transmit the impact force to other components.

[0016] In some embodiments, the volume of the second accommodating space is greater than the volume of the first accommodating space.

[0017] This arrangement enables the joint device to be exposed to the impact from the side of the longitudinal beam earlier, thereby transmitting and distributing the impact force and enhancing the side thrust support function.

[0018] In some embodiments, the joint device includes at least four second reinforcement members, and the at least four second reinforcement members are arranged in sequence, from the first side wall to the third side wall, the first second reinforcement member, the second second reinforcement member, and the second side wall and / or the third side wall form a third accommodating space, and a second reinforcement structure is arranged in the third accommodating space; multiple third accommodating spaces are arranged on opposite sides of the first accommodating space and the second accommodating space.

[0019] This design method can provide multiple reinforcement structures in the frame, thereby enhancing the overall strength of the joint device.

[0020] In some embodiments, the first side wall, the third side wall, and the second reinforcement are arranged in parallel, and the second side wall, the fourth side wall, and the first reinforcement are arranged in parallel.

[0021] This arrangement can make the shape of the joint device more regular, and each accommodating space is a rectangular space, which is better for arranging a reinforcement structure or accommodating external components.

[0022] In some embodiments, the depth of the portion of the first accommodating space enclosed by the first reinforcement is less than the length of the second side wall and the fourth side wall in the depth direction, and the first reinforcement, the second reinforcement, the first side wall, the second side wall, the third side wall and the fourth side wall are located on the same plane along one side of the depth direction, and the fixing plate is connected to the side of the first reinforcement away from the plane.

[0023] This arrangement allows the end of the longitudinal beam connected to the fixing plate to be located in the first accommodating space, and the smaller depth of the first reinforcement allows the other side of the fixing plate to contact the external component, and part of the external component is located between the second side wall and the fourth side wall, making it easier to connect with the second side wall and the fourth side wall.

[0024] In some embodiments, a welding portion is provided on a surface of the fixing plate facing the plane.

[0025] The provision of the welding portion can enable the fixing plate to be better welded to the longitudinal beam, thereby enhancing the connection strength between the joint device and the longitudinal beam.

[0026] In some embodiments, the joint device further includes a bracket, the bracket is connected to the first reinforcement member and / or the second reinforcement member, and the bracket is arranged along the width direction of the first reinforcement member or the second reinforcement member.

[0027] The provision of the bracket can enhance the strength of the first reinforcement member and / or the second reinforcement member in the width direction, and can also connect other external components.

[0028] In order to solve the above technical problems, another technical solution adopted in the present application is: providing a vehicle body, the vehicle body includes a longitudinal beam, an energy absorption box, a subframe, a front cabin upper side beam and a joint device, the joint device is the joint device described in any one of the above items, the subframe and the front cabin upper side beam are respectively connected to one of the side walls, the longitudinal beam and the energy absorption box are respectively located on opposite sides of the joint device, and are connected to opposite sides of the joint device.

[0029] In the above manner, the joint device simultaneously connects the longitudinal beam, the energy absorption box, the subframe and the upper side beam of the front cabin, so that the longitudinal beam, the subframe and the upper side beam of the front cabin form an integral frame structure with strong structural strength, which can cope with and absorb impact forces in all directions; when any point in the overall frame structure is subjected to force, the force can be transmitted to other components.

[0030] In some embodiments, a fixing plate is provided in one of the accommodating spaces, the longitudinal beam is connected to the fixing plate in the accommodating space, and at least one accommodating space having the reinforcing structure is arranged on the outer side of the longitudinal beam away from the center of the vehicle body.

[0031] In some embodiments, the energy absorption box is connected to the fixing plate.

[0032] Through this arrangement, the longitudinal beam and the energy absorption box can be connected through the fixing plate and the impact force can be transmitted between the longitudinal beam and the energy absorption box.

[0033] In some embodiments, the longitudinal beam and the energy absorbing box are both perpendicular to the fixing plate, and the area of ​​the surface where the longitudinal beam is connected to the fixing plate is smaller than the area of ​​the surface where the energy absorbing box is connected to the fixing plate.

[0034] This setting allows the vehicle body to use a larger energy absorption box, thereby achieving a better force dispersion effect.

[0035] In some embodiments, the energy absorption box extends beyond the longitudinal beam in a direction away from the vehicle body.

[0036] Similarly, this setting allows the vehicle body to use a larger energy absorption box, thereby achieving a better force dispersion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, among which:

[0038] Figure 1 is a schematic diagram of a three-dimensional structure of a connector device according to some embodiments;

[0039] Figure 2 is a front view of a connector device according to some embodiments;

[0040] Figure 3 is a schematic diagram of a three-dimensional structure of a vehicle body according to some embodiments;

[0041] Figure 4 is a left side view of a vehicle body according to some embodiments.

[0042] Marking Description:

[0043] Joint device 10, longitudinal beam 20, energy absorption box 30, front cabin upper side beam 40, subframe 50;

[0044] First side wall 11, first fixing hole 111, second side wall 12, second fixing hole 121, third side wall 13, third fixing hole 131, fourth side wall 14, first reinforcement member 15, second reinforcement member 16, fixing plate 17, welding portion 171, second accommodating space 18, first reinforcement structure 181, third accommodating space 19, second reinforcement structure 191, bracket 101. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings showing multiple embodiments of the present application. It should be understood that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by ordinary technicians in this field without spending creative work will fall within the scope of protection of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those generally understood by technicians in the technical field of this application; the terms used in the specification of the application are only for the purpose of describing specific implementation methods, and are not intended to limit this application; the terms "including", "comprising", "having", "having", "containing", "including", etc. in the specification and claims of this application and the above-mentioned figure description are open-ended words. Therefore, "including", "comprising", "having" is a method or device with one or more steps or elements, for example, which has one or more steps or elements, but is not limited to having only these one or more elements. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "multiple" is two or more.

[0047] In the description of the present application, it should be understood that the terms "center", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like 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 present application 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 present application.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations 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 application may be combined with other embodiments.

[0050] As mentioned above, it should be emphasized that when the term "includes / comprising" is used in this specification, it is used to clearly indicate the presence of the features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or groups of features, integers, steps, components. As used in this application, the singular forms "a", "an" and "the" also include plural forms, unless the context clearly indicates otherwise.

[0051] The words "a" and "an" in this specification may mean one, but may also be consistent with the meaning of "at least one" or "one or more". The term "about" generally means plus or minus 10% of the mentioned value, or more specifically plus or minus 5%. The term "or" used in the claims means "and / or" unless it is clearly stated that it refers to only alternative solutions.

[0052] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. 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, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0053] The existing joint device generally only connects the longitudinal beam and the energy absorption box. It is divided into two parts, the first part is the welding of the first end plate and the longitudinal beam, the second part is the welding of the second end plate and the energy absorption box, and then the first end plate and the second end plate are connected by bolts, so as to connect the longitudinal beam and the energy absorption box. The design of this joint device can meet the requirements of full-width head-on collision, that is, it can meet the requirements when the collision is carried out on the front of the longitudinal beam. However, when two vehicles collide and the center column hits, this joint device will fail to connect, resulting in an increase in the amount of intrusion and increased damage to members. In addition, when the longitudinal beam is collided sideways, since there is no related structure on the side of the longitudinal beam, the longitudinal beam will be exposed to the collision later, and it is difficult to play a role, and it is impossible to realize the integral side thrust structure of the front cabin upper side beam, the longitudinal beam, and the subframe in series. In addition, the end plate splicing design, even if it is designed as a series structure with the longitudinal beam, the overall strength will be insufficient, and a good side thrust support function cannot be formed.

[0054] In order to solve the problem that the overall strength of the related parts of the vehicle body longitudinal beam is insufficient and a good side thrust support function cannot be formed, the present application proposes a joint device, which is box-shaped and adopts a frame structure; the joint device includes four side walls, and the four side walls surround the internal space of the joint device, and at least one first reinforcement extending along the first direction and at least one second reinforcement extending along the second direction are arranged in the internal space, and the two ends of the first reinforcement and the second reinforcement can be fixedly connected to any two of the four side walls respectively, thereby enhancing the structural strength of the joint device through the connection between the first reinforcement, the second reinforcement and the four side walls, and at the same time forming multiple areas in the internal space of the joint device.

[0055] Preferably, the four side walls of the joint device form a square structure, the first reinforcement member is vertically connected to a group of opposite side walls, and the second reinforcement member is vertically connected to another group of opposite side walls, thereby constructing a tic-tac-toe structure in the internal space of the joint device, thereby forming a plurality of square areas. The first area is used to receive the end of the longitudinal beam and is fixedly connected to the longitudinal beam, for example, by welding, screwing or riveting.

[0056] At least one reinforcement structure is arranged in at least one of the other regions, and the reinforcement structure is fixedly connected to the side wall of the region where the reinforcement structure is located to form a reinforcement structure in the region, thereby enhancing the structural strength of the region.

[0057] The joint device is provided with at least one area on the side relative to the longitudinal beam, especially on the outer side of the longitudinal beam away from the center of the vehicle body, for receiving the impact force in advance through the area on the outer side of the longitudinal beam when the outer side of the longitudinal beam away from the center of the vehicle body receives a collision or impact, and transmitting the impact force to the longitudinal beam, thereby increasing the buffer space on the outer side of the longitudinal beam away from the center of the vehicle body.

[0058] like Figure 1 and Figure 2 As shown, Figure 1 is a schematic diagram of a three-dimensional structure of a connector device 10 according to some embodiments. Figure 2 1 is a front view of a connector device 10 according to some embodiments. In some embodiments, the connector device 10 includes a frame and a reinforcement. The frame includes a plurality of side walls connected in sequence, and the plurality of side walls form an internal space of the frame. At least one side wall is configured to connect an external component. There is at least one reinforcement, which is configured in the internal space of the frame, and the reinforcement is connected to the side wall to form a plurality of accommodating spaces in the internal space of the frame, and a reinforcement structure is provided in at least one of the accommodating spaces.

[0059] The frame is a structure including a plurality of side walls connected in sequence, as the outermost structure. The plurality of side walls are connected in sequence, and are the main structure surrounding the frame. The interior of the plurality of side walls constitutes the internal space of the frame, and the outer side of the side walls is configured to connect external components, so that the external components can be connected to the components in the internal space of the frame to achieve force conduction. The reinforcement structure can be a structure such as a reinforcing rib, which is used to enhance the structural strength of the frame. The external components include but are not limited to the front cabin upper side beam 40, the energy absorption box 30, the subframe 50, and the longitudinal beam 20. The frame can be connected to any component therein, so as to achieve force conduction between the external components.

[0060] Through the above-mentioned method, the frame can realize the connection between multiple external components, and has a reinforcing structure to enhance the structural strength of the frame, which can better transmit the force, thereby providing a good side-pushing support function.

[0061] In some embodiments, one of the accommodating spaces can be configured to be connected to a vehicle body longitudinal beam 20 , and at least one accommodating space having a reinforcement structure is arranged on an outer side of the vehicle body longitudinal beam 20 away from a center of the vehicle body.

[0062] In this way, the force of other external components connected to the frame can be transmitted to the vehicle body longitudinal beam 20, so that the vehicle body longitudinal beam 20 can form a good side thrust support function. In addition, the frame directly connects multiple different external components to form a frame structure, which can enhance the overall strength of the connection area between the vehicle body longitudinal beam 20 and the joint device.

[0063] In some embodiments, the frame includes a first side wall 11, a second side wall 12, a third side wall 13 and a fourth side wall 14 connected in sequence. In addition to being connected to the third side wall 13, the fourth side wall 14 is also connected to the first side wall 11, thereby forming a rectangular frame. The first side wall 11, the second side wall 12 and the third side wall 13 are respectively connected to different external components. The reinforcement includes a first reinforcement 15 and a plurality of second reinforcements 16. Among them, the first reinforcement 15 is located between the second side wall 12 and the fourth side wall 14, one end of the first reinforcement 15 is connected to the first side wall 11, and the other end is connected to the third side wall 13. The plurality of second reinforcements 16 are connected to the second side wall 12 at one end and to the fourth side wall 14 at the other end, and are cross-connected with the first reinforcement 15. In this embodiment, the second reinforcements 16 include four; and in other embodiments, the second reinforcements 16 include but are not limited to two, three or more. The joint device 10 also includes a fixing plate 17, wherein, as Figure 1As shown, at least two parts of the second reinforcement members 16, parts of the first reinforcement member 15 and parts of the second side wall 12 enclose the first accommodation space. In fact, the part of the first reinforcement member 15 located in the middle position and between the two adjacent second reinforcement members 16, the part of the two adjacent second reinforcement members 16 along the Z direction located between the first reinforcement member 15 and the second side wall 12, and the part of the second side wall 12 between the above two second reinforcement members 16, together enclose the first accommodation space. In some embodiments, there are four second reinforcement members 16 arranged along the Z direction, and parts of two adjacent second reinforcement members 16 arranged in the middle position along the Z direction can be selected to enclose the first accommodation space. The Z direction is the longitudinal length direction of the joint device 10 in this embodiment. The first accommodation space is not a sealed space, but a space with an opening. The fixing plate 17 is arranged in the first accommodation space and is connected to the first reinforcement member 15, the second reinforcement member 16 and the second side wall 12. In some embodiments, the fixing plate 17 is perpendicular to the first reinforcement member 15, the second reinforcement member 16 and the second side wall 12.

[0064] The first reinforcement 15 and the second reinforcement 16 are cross-connected to each other to form a criss-cross structure in the internal space of the frame, thereby enhancing the structural strength of the connector device 10. At the same time, multiple areas surrounded by side walls, the first reinforcement 15, and the second reinforcement 16 are constructed in the internal space of the frame. These areas can be used to receive and install external components, or reinforcement structures can be added in the areas to improve the overall structural strength of the connector device 10.

[0065] The first side wall 11, the second side wall 12, the third side wall 13 and the fourth side wall 14 are strip structures or plate structures to form a frame. The connection methods of the first side wall 11, the second side wall 12 and the third side wall 13 with external components include but are not limited to welding, bolt connection, rivet connection and snap connection. The first reinforcement 15 is also a strip structure or a plate structure, but it is arranged inside the frame to play a supporting and partitioning role. The second reinforcement 16 is also a strip structure or a plate structure, which is arranged inside the frame to play a supporting and partitioning role. The difference between the second reinforcement 16 and the first reinforcement 15 is that the two are arranged in different directions. The fixing plate 17 is a plate structure for connecting the longitudinal beam 20. In some embodiments, the frame, the first reinforcement 15 and the second reinforcement 16 are an integrally formed structure, or the frame, the first reinforcement 15, the second reinforcement 16 and the fixing plate 17 are an integrally formed structure and are made of metal. The metal includes but is not limited to aluminum alloy, steel, and steel alloy.

[0066] By setting the first reinforcement 15, the frame of the joint device 10 is divided into two parts, so that part of the frame is still on one side of the fixing plate 17, and the fixing plate 17 is used to connect the longitudinal beam 20, so that part of the frame is still on the side of the longitudinal beam 20. When the longitudinal beam 20 collides from the side, the force will be transmitted to the longitudinal beam 20 through the frame, so that it forms a good side thrust support function. In addition, the frame is directly connected to multiple different external components to form a frame structure, which can enhance the overall strength of the connection area between the vehicle body longitudinal beam 20 and the joint device.

[0067] In some embodiments, a first fixing hole 111 is provided on the first side wall 11, a second fixing hole 121 is provided on the second side wall 12, a third fixing hole 131 is provided on the third side wall 13, and a fourth fixing hole is provided on the fourth side wall 14. The second side wall 12 and the fourth side wall 14 can be used to fix the same external component.

[0068] The first fixing hole 111, the second fixing hole 121, the third fixing hole 131 and the fourth fixing hole are configured as holes for fixing the first side wall 11, the second side wall 12, the third side wall 13 and the fourth side wall 14 to external components through fixing members. Among them, any two of the first fixing hole 111, the second fixing hole 121, the third fixing hole 131 and the fourth fixing hole can be the same or different. The first fixing hole 111 can be one, or two or more, and the number of the first fixing holes 111 is set according to actual needs. Similarly, the second fixing hole 121, the third fixing hole 131 and the fourth fixing hole can be one, or two or more. In addition, although the second side wall 12 and the fourth side wall 14 can be used to fix the same external component, the second fixing hole 121 and the fourth fixing hole can be the same or different. Different styles of second fixing holes 121 and fourth fixing holes can be used to match different styles of fixing members to fix the external components in various styles, thereby enhancing the fixing effect.

[0069] The second side wall 12 and the fourth side wall 14 fix the same external component at the same time, which can enhance the strength of the external component fixation, thereby enhancing the overall strength.

[0070] In some embodiments, the first fixing hole 111 and the third fixing hole 131 are threaded holes, and metal threaded sleeves are embedded in the first fixing hole 111 and the third fixing hole 131 .

[0071] The metal threaded sleeve is a metal tubular structure with threads inside and outside. The external threads of the metal threaded sleeve are screwed with the internal threads of the first fixing hole 111 and the internal threads of the third fixing hole 131. The internal threads of the metal threaded sleeve are used to be screwed with external components or fixings, thereby achieving a fixed connection between the external components or fixings and the joint device. The metal threaded sleeve includes but is not limited to a steel threaded sleeve, a steel alloy threaded sleeve, a copper threaded sleeve, and a copper alloy threaded sleeve. The hardness of the metal threaded sleeve needs to be greater than the hardness of the first side wall 11 and the third side wall 13, so as to improve the structural strength and connection strength of the first fixing hole 111 and the third fixing hole 131, and prevent the first fixing hole 111 and the third fixing hole 131 from being damaged during a collision.

[0072] Embedding a metal threaded sleeve in the threaded hole can enhance the strength of the fixing hole, thereby improving the connection strength of the joint device 10.

[0073] In some embodiments, Figure 1-2 As shown, at least two parts of the second reinforcement members 16, part of the first reinforcement member 15 and part of the fourth side wall 14 enclose a second accommodation space 18. The second accommodation space 18 is adjacent to the first accommodation space. A first reinforcement structure 181 is provided in the second accommodation space 18, and the first reinforcement structure 181 can be fixedly connected to the side wall of the second accommodation space 18, specifically, the first reinforcement structure can connect the second reinforcement member 16, the first reinforcement member 15 and the fourth side wall 14.

[0074] The portion of the first reinforcement 15 between the two second reinforcements 16 located in the middle and adjacent positions, the portion of the two second reinforcements 16 located in the middle and adjacent positions between the first reinforcement 15 and the fourth side wall 14, and the portion of the fourth side wall 14 between the two second reinforcements 16 located in the middle and adjacent positions enclose the second accommodation space 18. In this embodiment, the first accommodation space and the second accommodation space 18 are enclosed by the same two second reinforcements 16, but different portions of the two second reinforcements 16 respectively enclose the first accommodation space and the second accommodation space 18. The portions of the first reinforcement 15 that enclose the first accommodation space and the second accommodation space 18 are the same. Therefore, the first accommodation space and the second accommodation space 18 are adjacent. The second accommodation space 18 is also not a sealed space, but a space with an opening. The first reinforcement structure 181 can be formed by crossing a plurality of strip structures or plate structures, which connect the four corners of the second accommodation space 18 and the fourth side wall 14 and the first reinforcement 15. Alternatively, the first reinforcing structure 181 may also be connected only to the four corners of the second accommodating space 18; or alternatively, the first reinforcing structure 181 may also be connected to two second reinforcing members 16. When the first reinforcing structure 181 is connected to the fourth side wall 14, the first reinforcing member 15 or the second reinforcing member 16, it is best to divide the fourth side wall 14, the first reinforcing member 15 or the second reinforcing member 16 that enclose the second accommodating space 18 into equal parts, so that the fourth side wall 14, the first reinforcing member 15 or the second reinforcing member 16 are subjected to uniform force. The intersection of the multiple strip structures or plate structures in the first reinforcing structure 181 is preferably the center of the second accommodating space 18. In addition, the first reinforcing structure 181 includes but is not limited to this structure, and may also be a determinant structure cross-connected in two directions, a honeycomb structure, a structure in which multiple triangles or trapezoids are arranged in an interlaced manner.

[0075] The second accommodating space 18 is located to the side of the first accommodating space and is provided with a first reinforcing structure 181, which has high strength, so that when the joint device 10 is subjected to an impact force along the side of the longitudinal beam 20, it can withstand and absorb a large impact force and easily transmit the impact force to other components.

[0076] In some embodiments, the volume of the second accommodating space 18 is greater than the volume of the first accommodating space.

[0077] The second accommodation space 18 shares part of the first reinforcement 15 with the first accommodation space, so its volume is determined by the length of the second reinforcement 16 that encloses the first accommodation space and the second accommodation space 18. The volume of the second accommodation space 18 is greater than the volume of the first accommodation space, that is, the length of the part of the second reinforcement 16 that encloses the second accommodation space 18 is greater than the length of the part of the second reinforcement 16 that encloses the first accommodation space. The length direction of the second reinforcement 16 is parallel to the lateral direction of the longitudinal beam 20. The first accommodation space is used to accommodate the fixing plate 17 connected to the longitudinal beam 20, so the second accommodation space 18 is set to increase the collision distance in the lateral direction of the longitudinal beam 20, that is, to increase the collision distance of the longitudinal beam 20 in the Y direction, so that when the longitudinal beam 20 collides in the lateral direction, it can collide with the joint device 10 earlier, especially the second accommodation space 18 part of the joint device 10, so that the force can be transmitted to the longitudinal beam 20, so that the longitudinal beam 20 participates in the collision earlier. In addition, in other embodiments, an extended part with the same structure can also be set on the other side of the first accommodation space. However, generally, the longitudinal beam 20 is disposed on one lateral side of the vehicle body. Therefore, in order to receive a collision from the outside of the vehicle body, such a structure may be provided on a side of the longitudinal beam 20 away from the center of the vehicle body.

[0078] This arrangement enables the joint device 10 to be exposed to the impact in the lateral direction of the longitudinal beam 20 earlier, thereby transmitting and distributing the impact force, thereby enhancing the side thrust support function of the end area of ​​the longitudinal beam.

[0079] In some embodiments, the connector device 10 includes at least four second reinforcement members 16, which are arranged in sequence. From the first side wall 11 to the third side wall 13, that is, the opposite direction of the Z direction, the first second reinforcement member 16, the second second reinforcement member 16, and the second side wall 12 and / or the third side wall 13 enclose a third accommodation space 19, and a second reinforcement structure 191 is arranged in the third accommodation space 19. From the third side wall 13 to the first side wall 11, that is, the Z direction, the first second reinforcement member 16, the second second reinforcement member 16, and the second side wall 12 and / or the third side wall 13 also enclose a third accommodation space 19, and a second reinforcement structure 191 is arranged in the third accommodation space 19. There are multiple third accommodation spaces 19, which are located on opposite sides of the first accommodation space and the second accommodation space 18.

[0080] The first accommodating space and the second accommodating space 18 are arranged along the extension direction of the second reinforcement member 16, that is, the first accommodating space and the second accommodating space 18 are arranged along the Y direction. The Y direction is the lateral length direction of the joint device 10. The third accommodating space 19 is arranged along the Z direction and / or the opposite direction of the Z direction between the first accommodating space and the second accommodating space 18. The setting of the third accommodating space 19 separates the first fixing hole 111 and the third fixing hole 131 from the first accommodating space and the second accommodating space 18. Therefore, when the joint device 10 receives an external impact, especially when the external component connected to the first side plate 11 and the third side plate 13 is stressed, it can be buffered and absorbed by the second reinforcement structure 191 in the third accommodating space 19, and then transmitted to the longitudinal beam 20, thereby enhancing the overall strength of the joint device 10. The second reinforcement structure 191 can be formed by crossing two strip structures or plate structures, respectively connecting the four corners of the third accommodating space 19, and the intersection is located at the center of the third accommodating space 19. The second reinforcement structure 191 can also be the same as the first reinforcement structure 181, which is formed by the intersection of more strip structures or plate structures, or a determinant structure, a honeycomb structure, a structure in which multiple triangles or trapezoids are arranged in an interlaced manner in two directions. The first reinforcement structure 181 and the second reinforcement structure 191 can also be reinforcement ribs. In some embodiments, the first reinforcement structure 181 and the second reinforcement structure 191 are also integrally formed structures with the frame, the first reinforcement member 15 and the second reinforcement member 16. In addition, chamfered structures can also be provided at the four corners of the second accommodating space 18 and the third accommodating space 19.

[0081] This design method can provide a plurality of reinforcement structures in the frame, thereby enhancing the overall strength of the connector device 10 .

[0082] In some embodiments, the first side wall 11 , the third side wall 13 , and the second reinforcement member 16 are arranged in parallel, and the second side wall 12 , the fourth side wall 14 , and the first reinforcement member 15 are arranged in parallel.

[0083] In some embodiments, the first side wall 11 , the third side wall 13 , and the second reinforcement 16 are perpendicular to the second side wall 12 , the fourth side wall 14 , and the first reinforcement 15 .

[0084] This arrangement can make the shape of the connector device 10 more regular, and each accommodating space is a rectangular space, which can better arrange the reinforcement structure or accommodate external components.

[0085] Alternatively, the first side wall 11 , the third side wall 13 and the second reinforcement 16 are not perpendicular to the second side wall 12 , the fourth side wall 14 and the first reinforcement 15 but are formed at an acute angle or an obtuse angle.

[0086] In some embodiments, Figure 1As shown, in the X direction, i.e., the depth direction of the joint device 10, the depth of the first accommodation space enclosed by the first reinforcement member 15 and the fixing plate 17 is less than the length of the second side wall 12 and the fourth side wall 14 in the depth direction. The lengths of the first reinforcement member 15, the second reinforcement member 16, the first side wall 11, the second side wall 12, the third side wall 13 and the fourth side wall 14 in the X direction are the same, i.e., the lengths in the depth direction are the same and the first reinforcement member 15, the second reinforcement member 16, the first side wall 11, the second side wall 12, the third side wall 13 and the fourth side wall 14 are located on the same plane along one side of the depth direction. The fixing plate 17 is connected to the side of the first reinforcement member 15 away from the plane.

[0087] Figure 1 and Figure 2 The X direction is the depth direction of the joint device 10, the Y direction is the lateral length of the joint device 10, and the Z direction is the longitudinal length of the joint device 10. The depth direction of the first reinforcement 15, the second reinforcement 16, the first side wall 11, the second side wall 12, the third side wall 13 and the fourth side wall 14 is the X direction. Assuming that the surface where the plane is located is the front of the frame, and the surface opposite to the plane is the back of the frame, the longitudinal beam 20 is inserted from the front of the frame, that is, inserted into the first accommodating space along the opposite direction of the X direction and connected to the fixing plate 17. The energy absorbing box 30 is connected to the joint device 10 on the back of the frame, that is, connected to the joint device 10 along the X direction, and connected to the first reinforcement 15 or the second reinforcement 16 or the fixing plate 17. The fixing plate 17 is arranged on the side of the first accommodating space facing the back of the frame. The first reinforcement 15 and the second reinforcement 16 are shorter in depth, that is, they occupy less space in the X direction, so a larger energy absorption box 30 can be inserted into the frame without being blocked by the first reinforcement 15 or the second reinforcement 16 .

[0088] This arrangement allows the end of the longitudinal beam 20 connected to the fixing plate 17 to be located in the first accommodating space, and the shorter length of the first reinforcement 15 in the X direction allows the other side of the fixing plate 17 to contact the external component, and part of the external component is located between the second side wall 12 and the fourth side wall 14, making it easier to connect with the second side wall 12 and the fourth side wall 14.

[0089] In some embodiments, alternatively, the lengths of the first reinforcement 15 and the second reinforcement 16 in the X direction are the same as the lengths of the second side wall 12 and the fourth side wall 14 in the X direction, and the energy absorption box 30 can be connected to the first reinforcement 15, the second reinforcement 16, the second side wall 12, and the fourth side wall 14, which allows the energy absorption box 30 to have a larger width in the Y direction, so that when a collision occurs in the lateral direction of the longitudinal beam, the energy absorption box 30 can absorb energy earlier in the Y direction, thereby improving the lateral support capacity.

[0090] In some embodiments, a welding portion 171 is disposed on a surface of the fixing plate 17 facing the plane.

[0091] The welding part 171 includes but is not limited to a strip-shaped protrusion structure and a dot-shaped protrusion structure. The welding part 171 may include multiple ones and are dispersedly arranged. There may be multiple welding parts 171 in a group, and multiple groups are provided. In some embodiments, the other side surface of the fixing plate 17 may also be provided with a welding part 171 for welding with the energy absorption box 30.

[0092] The provision of the welding portion 171 enables the fixing plate 17 to be better welded to the longitudinal beam 20 , thereby enhancing the connection strength between the joint device 10 and the longitudinal beam 20 .

[0093] In some embodiments, the connector device 10 further includes a bracket 101, and the bracket 101 is connected to the first reinforcement member 15 and / or the second reinforcement member 16. The bracket 101 is a protruding structure, and a connection hole may be provided on it for connecting a fan or other external components. Alternatively, in some embodiments, the bracket 101 may also play a role of auxiliary support.

[0094] The bracket 101 can enhance the strength of the first reinforcement member 15 and / or the second reinforcement member 16 and can also connect other external components.

[0095] like Figure 3 and Figure 4 As shown, Figure 3 is a schematic diagram of a three-dimensional structure of a vehicle body according to some embodiments, Figure 4 1 is a left view of a vehicle body according to some embodiments. The vehicle body includes a longitudinal beam 20, an energy absorption box 30, a subframe 50, a front cabin upper side beam 40, and a joint device 10. The joint device 10 is the joint device 10 in any of the above embodiments. The subframe 50 and the front cabin upper side beam 40 are respectively connected to one of the side walls, and the longitudinal beam 20 and the energy absorption box 30 are respectively located on opposite sides of the joint device 10 and connected to opposite sides of the joint device 10.

[0096] In the above manner, the joint device 10 simultaneously connects the longitudinal beam 20, the energy absorption box 30, the subframe 50 and the front cabin upper side beam 40, so that the longitudinal beam 20, the subframe 50 and the front cabin upper side beam 40 form an integral frame structure, which has a strong structural strength and can cope with and absorb impact forces in all directions; when any point in the overall frame structure is subjected to force, the force can be transmitted to other components.

[0097] In some embodiments, a fixing plate 17 is provided in a receiving space, and the longitudinal beam 20 is connected to the fixing plate 17 in the receiving space. At least one receiving space with a reinforcement structure is arranged on the outer side of the longitudinal beam away from the center of the vehicle body.

[0098] This method makes the connection between the longitudinal beam 20 and the joint device 10 more stable, and the joint device 10 can better transfer the force to the longitudinal beam 20 after being subjected to force.

[0099] In some embodiments, the energy absorbing box 30 is connected to the fixing plate 17 .

[0100] In this way, the energy absorption box 30 and the longitudinal beam 20 can be connected through the fixing plate 17, and the connection between the energy absorption box 30 and the longitudinal beam 20 is more stable.

[0101] In some embodiments, the longitudinal beam 20 and the energy absorbing box 30 are both perpendicular to the fixing plate 17. The area of ​​the surface of the longitudinal beam 20 connected to the fixing plate 17 is smaller than the area of ​​the surface of the energy absorbing box 30 connected to the fixing plate 17.

[0102] The longitudinal beam 20 and the energy absorption box 30 are both perpendicular to the fixing plate 17, and the longitudinal beam 20 and the energy absorption box 30 are arranged on opposite sides of the fixing plate 17, so the surface where the longitudinal beam 20 is connected to the fixing plate 17 and the surface where the energy absorption box is connected to the fixing plate 17 are opposite sides of the fixing plate 17. The larger the surface where the energy absorption box 30 is connected to the fixing plate 17, the larger the energy absorption box 30 is. In other words, on the YZ plane, the area of ​​the energy absorption box 30 is larger than the area of ​​the longitudinal beam 20. Therefore, in the Y direction, that is, in the lateral direction of the longitudinal beam 2 away from the center of the vehicle body, the energy absorption box 30 still has a part of extension. Since the energy absorption box 30 still has a part of extension on the side of the longitudinal beam 20, a larger energy absorption box 30 can be used, and both sides can be connected to the joint device 10, and it is not limited to an energy absorption box 30 of the same size as the cross section of the longitudinal beam 20.

[0103] This arrangement allows the vehicle body to use a larger energy absorption box 30, thereby achieving a better force dispersion effect.

[0104] In some embodiments, the crash box 30 extends beyond the longitudinal beam 20 in a direction away from the vehicle body.

[0105] Similarly, this arrangement is also intended to allow the vehicle body to use a larger energy absorption box 30, thereby achieving a better force dispersion effect.

[0106] In the above embodiment, each accommodation space can be regarded as a region, and the joint device 10 is surrounded by four side walls to form an internal space of the joint device 10, and is divided into multiple regions by the first reinforcement member 15 and the second reinforcement member 16. The first accommodation space is the first region.

[0107] In some specific application scenarios, in view of the problem that the overall strength of the relevant parts of the existing vehicle body longitudinal beam 20 is insufficient and cannot form a good side thrust support function, the joint device 10 of the present application includes a frame, a first reinforcement 15, four second reinforcements 16 and a fixing plate 17. The frame includes a first side wall 11, a second side wall 12, a third side wall 13 and a fourth side wall 14 connected in sequence. In addition to being connected to the third side wall 13, the fourth side wall 14 is also connected to the first side wall 11, thereby forming a rectangular frame. The first side wall 11, the second side wall 12 and the third side wall 13 are respectively connected to different external components. The first reinforcement 15 is connected to the first side wall 11 at one end and to the third side wall 13 at the other end, and is arranged between the second side wall 12 and the fourth side wall 14. The four second reinforcements 16 are connected to the second side wall 12 at one end and to the fourth side wall 14 at the other end, and are cross-connected with the first reinforcement 15, and the four second reinforcements 16 are parallel to each other. The portion of the two middle second reinforcement members 16, the portion of the first reinforcement member 15 and the portion of the second side wall 12 enclose the first accommodation space. In fact, the portion of the first reinforcement member 15 between the two middle and adjacent second reinforcement members 16, the portion of the two middle and adjacent second reinforcement members 16 between the first reinforcement member and the second side wall 12 and the portion of the second side wall 12 between the two middle and adjacent second reinforcement members 16 enclose the first accommodation space. The first accommodation space is not a sealed space, but a space with an opening. The fixing plate 17 is disposed in the first accommodation space and is connected to the first reinforcement member 15, the second reinforcement member 16 and the second side wall 12. The fixing plate 17 is perpendicular to the first reinforcement member 15, the second reinforcement member 16 and the second side wall 12. In some embodiments, the portion of the two middle second reinforcement members 16, the portion of the first reinforcement member 15 and the portion of the fourth side wall 14 enclose the second accommodation space 18. The second accommodation space 18 is adjacent to the first accommodation space. A first reinforcement structure 181 is disposed in the second accommodating space 18 , and the first reinforcement structure 181 connects the second reinforcement member 16 , the first reinforcement member 15 and the fourth side wall 14 .

[0108] By setting the first reinforcement 15, the frame of the joint device 10 is divided into two parts, so that part of the frame is still on one side of the fixing plate 17, and the fixing plate 17 is used to connect the longitudinal beam 20, so that part of the frame is still on the side of the longitudinal beam 20 away from the center of the vehicle body. When the longitudinal beam 20 collides from the side, the force will be transmitted to the longitudinal beam 20 through the frame, so that it forms a good side thrust support function. In addition, the frame is directly connected to multiple different external components, which can enhance the overall strength of the relevant parts of the longitudinal beam 20 of the vehicle body.

[0109] Although in the above embodiment, the first reinforcement member 15 is connected to the first side wall and the third side wall, and the second reinforcement member 16 is connected to the second side wall and the fourth side wall, alternatively, the first reinforcement member 15 may be connected to only one of the first side wall and the third side wall, and the other end of the first reinforcement member 15 is connected to the second reinforcement member 16; and / or, the second reinforcement member 16 may be connected to only one of the second side wall and the fourth side wall, and the other end of the second reinforcement member 16 is connected to the first reinforcement member 15, thereby constructing areas of different sizes and positions in the internal space of the joint device 10 to meet a variety of different requirements.

[0110] Although in the above embodiment, the frame includes a first side wall, a second side wall, a third side wall and a fourth side wall, the present application is not limited thereto. Alternatively, the frame may also include three, five, six or other numbers of side walls. In the frame space surrounded by the side walls, the reinforcements may be connected to the corresponding side walls according to design requirements, and different connection structures may be constructed between the reinforcements as needed.

[0111] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A joint device, characterized in that: The joint device comprises: The frame comprises a plurality of side walls connected in sequence, wherein the plurality of side walls form an internal space of the frame; at least one side wall is configured to be used for connecting an external component; At least one reinforcing member is disposed in the inner space of the frame, the reinforcing member is connected to the side wall, a plurality of accommodating spaces are formed in the inner space of the frame, and a reinforcing structure is disposed in at least one of the accommodating spaces.

2. The connector device according to claim 1, characterized in that: One of the accommodating spaces can be configured to be connected to a vehicle body longitudinal beam, and at least one accommodating space having a reinforcement structure is arranged on an outer side of the vehicle body longitudinal beam away from a center of the vehicle body.

3. The connector device according to claim 1 or 2, characterized in that: The frame body comprises a first side wall, a second side wall, a third side wall and a fourth side wall which are connected in sequence, wherein the first side wall, the second side wall and the third side wall are connected to different external components; The reinforcement member includes a first reinforcement member and a plurality of second reinforcement members, wherein the first reinforcement member is located between the second side wall and the fourth side wall, one end of the first reinforcement member is connected to the first side wall, and the other end is connected to the third side wall; a plurality of second reinforcement members, one end of which is connected to the second side wall, and the other end of which is connected to the fourth side wall, and are cross-connected with the first reinforcement member, and at least two of the second reinforcement members, the first reinforcement member and the second side wall enclose a first accommodation space; The joint device further includes a fixing plate, which is disposed in the first accommodating space and connected to the first reinforcement member, the second reinforcement member and the second side wall.

4. The connector device according to claim 3, characterized in that: The first side wall is provided with a first fixing hole, the second side wall is provided with a second fixing hole, the third side wall is provided with a third fixing hole, the fourth side wall is provided with a fourth fixing hole, and the second side wall and the fourth side wall are fixed to the same external component.

5. The connector device according to claim 4, characterized in that: The first fixing hole and the third fixing hole are threaded holes, and metal threaded sleeves are embedded in the first fixing hole and the third fixing hole.

6. The connector device according to any one of claims 3 to 5, characterized in that: At least two of the second reinforcement members, the first reinforcement member and the fourth side wall form a second accommodating space adjacent to the first accommodating space, and a first reinforcement structure is arranged in the second accommodating space, and the first reinforcement structure connects the second reinforcement member, the first reinforcement member and the fourth side wall.

7. The connector device according to claim 6, characterized in that: The volume of the second accommodating space is greater than the volume of the first accommodating space.

8. The connector device according to claim 6 or 7, characterized in that: The joint device comprises at least four second reinforcement members, which are arranged in sequence. From the first side wall to the third side wall, the first second reinforcement member, the second second reinforcement member, and the second side wall and / or the third side wall form a third accommodating space, and a second reinforcement structure is arranged in the third accommodating space; The third accommodating spaces are disposed on two opposite sides of the first accommodating space and the second accommodating space.

9. The connector device according to any one of claims 3 to 8, characterized in that: The first side wall, the third side wall and the second reinforcement are arranged in parallel, and the second side wall, the fourth side wall and the first reinforcement are arranged in parallel.

10. The connector device according to any one of claims 3 to 9, characterized in that: The depth of the portion of the first accommodating space enclosed by the first reinforcement is smaller than the length of the second side wall and the fourth side wall in the depth direction, and the first reinforcement, the second reinforcement, the first side wall, the second side wall, the third side wall and the fourth side wall are located on the same plane along one side of the depth direction, and the fixing plate is connected to a side of the first reinforcement away from the plane.

11. The connector device according to claim 10, characterized in that: A welding portion is provided on a surface of the fixing plate facing the plane.

12. The connector device according to any one of claims 3 to 11, characterized in that: The joint device further comprises a bracket, which is connected to the first reinforcement member and / or the second reinforcement member.

13. A vehicle body, characterized in that: The vehicle body includes a longitudinal beam, an energy absorption box, a subframe, a front cabin upper side beam and a joint device, and the joint device is the joint device described in any one of claims 1 to 12, the subframe and the front cabin upper side beam are respectively connected to one of the side walls, the longitudinal beam and the energy absorption box are respectively located on opposite sides of the joint device and connected to opposite sides of the joint device.

14. The vehicle body according to claim 13, characterized in that: A fixing plate is arranged in one of the accommodating spaces, the longitudinal beam is connected to the fixing plate in the accommodating space, and at least one accommodating space having the reinforcing structure is arranged on the outer side of the longitudinal beam away from the center of the vehicle body.

15. The vehicle body according to claim 13 or 14, characterized in that: The energy absorption box is connected to the fixing plate.

16. The vehicle body according to claim 15, characterized in that The longitudinal beam and the energy absorbing box are both perpendicular to the fixing plate, and the area of ​​the surface where the longitudinal beam is connected to the fixing plate is smaller than the area of ​​the surface where the energy absorbing box is connected to the fixing plate.

17. The vehicle body according to claim 16, characterized in that: In a direction away from the vehicle body, the energy absorption box extends beyond the longitudinal beam.

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