Seat cross beam, battery pack and vehicle

Abstract

The utility model provides a seat cross beam, a battery pack and a vehicle, and relates to the technical field of vehicles. The seat cross beam comprises a seat cross beam body, at least one first longitudinal reinforcing rib and at least one transverse reinforcing rib, the seat cross beam body is used for being connected with a battery pack upper cover, the seat cross beam body and the battery pack upper cover jointly define a first energy absorption cavity, and the first longitudinal reinforcing ribs and the transverse reinforcing ribs are arranged in the first energy absorption cavity; one end of the first longitudinal reinforcing rib is connected with the cross beam body, the other end of the first longitudinal reinforcing rib is used for being connected with a battery pack upper cover, the two ends of the transverse reinforcing rib are connected with the cross beam body, and the first longitudinal reinforcing rib intersects with the transverse reinforcing rib; the seat cross beam body, the first longitudinal reinforcing ribs and the transverse reinforcing ribs are integrally formed through aluminum extrusion. According to the seat cross beam, when a vehicle is subjected to side impact, the seat cross beam body, the first longitudinal reinforcing ribs and the transverse reinforcing ribs jointly bear impact force transmitted by a threshold beam, and the side impact resistance of the seat cross beam is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a seat crossbeam, a battery pack and a vehicle. Background Art

[0002] The seat crossmember is a critical component of the vehicle body, securing and supporting the vehicle seats. In the event of a side impact, the seat crossmember and the sill beam are the primary load-bearing components. Therefore, the strength of the seat crossmember significantly impacts the vehicle's ability to withstand side impacts.

[0003] In the existing technology, the seat crossbeam is made of ultra-high-strength steel hot forming process. The cross section of the seat crossbeam is an inverted U-shape, and the seat crossbeam and the vehicle floor together form an energy absorption cavity. The two ends of the seat crossbeam are connected to the vehicle's door sill beam or center channel.

[0004] However, the above-mentioned seat crossbeam structure has low strength, and its bending resistance and side impact resistance are weak. Utility Model Content

[0005] The present application provides a seat crossbeam, a battery pack and a vehicle to solve the problems of low structural strength, weak bending resistance and side impact resistance of existing seat crossbeams.

[0006] In a first aspect, the present application provides a seat cross member comprising a seat cross member body, at least one first longitudinal reinforcement rib, and at least one transverse reinforcement rib;

[0007] The seat crossbeam body is used to connect with the battery pack cover, and the seat crossbeam body and the battery pack cover together enclose a first energy absorption cavity, and the first longitudinal reinforcement ribs and the transverse reinforcement ribs are arranged in the first energy absorption cavity;

[0008] One end of the first longitudinal reinforcing rib is connected to the seat crossbeam body, the other end of the first longitudinal reinforcing rib is used to connect to the battery pack cover, both ends of the transverse reinforcing rib are connected to the seat crossbeam body, and the first longitudinal reinforcing rib intersects with the transverse reinforcing rib;

[0009] The seat crossbeam body, the first longitudinal reinforcement rib and the transverse reinforcement rib are integrally formed by aluminum extrusion.

[0010] In one possible implementation, the present application provides a seat crossbeam, wherein the seat crossbeam body includes a mounting portion and two supporting portions;

[0011] The two supporting parts are respectively connected to the two opposite sides of the mounting part, the supporting part is used to connect to the battery pack cover, and the mounting part is used to connect to the vehicle seat;

[0012] Two ends of the transverse reinforcing rib are respectively connected to the two supporting parts, and one end of the first longitudinal reinforcing rib is connected to the mounting part.

[0013] In one possible implementation, in the seat crossbeam provided in the present application, at least one of the two support portions and the first longitudinal reinforcement rib is arranged tilted.

[0014] In one possible implementation, the seat crossbar provided by the present application includes a seat crossbar body further comprising at least two heightened portions;

[0015] The raised portion is used to be connected to the seat, and the raised portions are arranged on the mounting portion at intervals, and the raised portions and the mounting portion together form a second energy absorbing cavity.

[0016] In one possible implementation, the seat crossbeam provided by the present application further includes at least one second longitudinal reinforcement rib;

[0017] The second longitudinal reinforcing rib is located in the second energy absorbing cavity, and two ends of the second longitudinal reinforcing rib are respectively connected to the heightened portion and the mounting portion.

[0018] In one possible implementation, the seat crossbar provided by the present application further includes a reinforcing plate and a connecting member;

[0019] The reinforcing plate is connected to a side of the mounting portion facing the upper cover of the battery pack, a first mounting hole is defined on the mounting portion, and a second mounting hole is defined on the reinforcing plate;

[0020] The connecting member is used to pass through the second mounting hole and the first mounting hole in sequence to be connected to the seat of the vehicle.

[0021] In one possible implementation, the seat crossbeam provided in the present application has at least two grooves formed on its body.

[0022] In a second aspect, the present application provides a battery pack, comprising a battery pack cover and at least two of any of the above-mentioned seat cross beams arranged on the battery pack cover.

[0023] In a third aspect, the present application provides a vehicle comprising a vehicle body and the above-mentioned battery pack arranged on the vehicle body.

[0024] In one possible implementation, the vehicle provided by the present application has a body including a center channel and a rocker beam;

[0025] The middle channel includes a middle channel body and a middle channel mounting surface, wherein the middle channel mounting surface is arranged at one end of the middle channel body close to the seat crossbeam;

[0026] The middle channel mounting surface is connected to the mounting portion of the seat crossbeam, and a gap is provided between the middle channel body and the supporting portion of the seat crossbeam;

[0027] There is a gap between the door sill beam and the seat cross member.

[0028] The seat crossbeam, battery pack, and vehicle provided in this application are characterized by providing a seat crossbeam body, at least one first longitudinal reinforcing rib, and at least one transverse reinforcing rib. The first longitudinal reinforcing rib and the transverse reinforcing rib are both disposed within a first energy-absorbing cavity defined by the seat crossbeam body and the battery pack cover. One end of the first longitudinal reinforcing rib is connected to the crossbeam body, and the other end of the first longitudinal reinforcing rib is used to connect to the battery pack cover. Both ends of the transverse reinforcing rib are connected to the crossbeam body. When the vehicle is involved in a side collision, the sill beam collapses, and the seat crossbeam body, the first longitudinal reinforcing rib, and the transverse reinforcing rib simultaneously contact the sill beam. Therefore, the sill beam can disperse the impact force to the seat crossbeam body, the first longitudinal reinforcing rib, and the transverse reinforcing rib, reducing the stress on the seat crossbeam body and thereby improving the seat crossbeam's bending resistance and side collision resistance. At the same time, compared with setting the reinforcement structure on the seat beam body formed by sheet metal stamping through welding and other methods, the seat beam body, the first longitudinal reinforcement ribs and the transverse reinforcement ribs of the present application are formed as a whole through aluminum extrusion. The connection between the first longitudinal reinforcement ribs and the transverse reinforcement ribs and the seat beam body is more stable, and the reinforcement effect of the first longitudinal reinforcement ribs and the transverse reinforcement ribs can be better exerted, thereby further improving the structural strength of the seat beam and improving its side impact resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] Figure 1 A schematic diagram of the structure of a seat crossbeam provided in an embodiment of the present application;

[0031] Figure 2 for Figure 1 AA section view;

[0032] Figure 3 for Figure 1 A local enlarged view of point B;

[0033] Figure 4 for Figure 3 DD section view at center C;

[0034] Figure 5 for Figure 1 Diagram of the seat crossbeam in use;

[0035] Figure 6 for Figure 5 Usage status diagram;

[0036] Figure 7 for Figure 6 Partial cross-section along the EE direction;

[0037] Figure 8 for Figure 6 Side view of;

[0038] Figure 9 for Figure 5 Another usage state diagram;

[0039] Figure 10 for Figure 6 The battery pack cover is in use.

[0040] Description of reference numerals:

[0041] 100-seat crossbeam;

[0042] 110-seat crossbeam body;

[0043] 111-first energy absorbing cavity;

[0044] 112-installation part;

[0045] 1121-first mounting hole;

[0046] 113-supporting part;

[0047] 114-enhanced part;

[0048] 1141-second energy absorbing cavity;

[0049] 115-groove;

[0050] 120-first longitudinal reinforcement;

[0051] 130- transverse reinforcement;

[0052] 140-second longitudinal reinforcement;

[0053] 150-reinforcement plate;

[0054] 151-second mounting hole;

[0055] 10-Battery pack cover;

[0056] 20-Middle channel;

[0057] 21-Middle channel body;

[0058] 22-middle channel mounting surface;

[0059] 30-seats.

[0060] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0061] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0062] As demonstrated in the background, conventional seat crossbeams are manufactured using ultra-high-strength steel thermoforming. Their cross-section is an inverted U-shaped, and they form an energy-absorbing cavity with the vehicle floor. Both ends of the crossbeam are connected to the vehicle's door sills or center tunnel. However, this single-layer design results in low structural strength, poor bending and side impact resistance.

[0063] In response to the above technical problems, the embodiments of the present application provide a seat crossbeam, a battery pack, and a vehicle, wherein the seat crossbeam includes a seat crossbeam body, at least one first longitudinal reinforcement rib, and at least one transverse reinforcement rib. The first longitudinal reinforcement rib and the transverse reinforcement rib are both arranged in a first energy-absorbing cavity enclosed by the seat crossbeam body and the battery pack cover. One end of the first longitudinal reinforcement rib is connected to the crossbeam body, and the other end of the first longitudinal reinforcement rib is used to connect to the battery pack cover. Both ends of the transverse reinforcement rib are connected to the crossbeam body. When the vehicle is hit from the side, the sill beam collapses, and the seat crossbeam body, the first longitudinal reinforcement rib, and the transverse reinforcement rib simultaneously contact the sill beam. Therefore, the sill beam can disperse the impact force to the seat crossbeam body, the first longitudinal reinforcement rib, and the transverse reinforcement rib, reducing the force on the seat crossbeam body, thereby improving the bending resistance and side impact resistance of the seat crossbeam. The cross-setting of the first longitudinal reinforcement ribs and the transverse reinforcement ribs can also divide the first energy absorption cavity into multiple energy absorption chambers, thereby improving the energy absorption efficiency of the seat beam when the vehicle collides head-on, thereby improving the bending resistance of the seat beam. At the same time, compared with setting the reinforcement structure on the seat beam body formed by sheet metal stamping through welding and other methods, the seat beam body, the first longitudinal reinforcement ribs and the transverse reinforcement ribs of the present application are integrally formed by aluminum extrusion. The connection between the first longitudinal reinforcement ribs and the transverse reinforcement ribs and the seat beam body is more stable, and the reinforcement effect of the first longitudinal reinforcement ribs and the transverse reinforcement ribs can be better exerted, further improving the structural strength of the seat beam and improving its side collision resistance.

[0064] The following specific embodiments are used to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The following embodiments of the present application are described in conjunction with the accompanying drawings:

[0065] It should be noted that the seat crossbeam provided in the embodiment of the present application can be applied to various vehicles.

[0066] See also Figure 1 、 Figure 2 and Figure 5 As shown, the seat beam 100 of the embodiment of the present application includes a seat beam body 110, at least one first longitudinal reinforcement rib 120 and at least one transverse reinforcement rib 130; the seat beam body 110 is used to connect with the battery pack cover 10, and the seat beam body 110 and the battery pack cover 10 together form a first energy absorption cavity 111, and the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 are arranged in the first energy absorption cavity 111; one end of the first longitudinal reinforcement rib 120 is connected to the seat beam body 110, and the other end of the first longitudinal reinforcement rib 120 is used to connect with the battery pack cover 10, and both ends of the transverse reinforcement rib 130 are connected to the seat beam body 110, and the first longitudinal reinforcement rib 120 intersects with the transverse reinforcement rib 130; the seat beam body 110, the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 are integrally formed by aluminum extrusion.

[0067] In the embodiment of the present application, the battery pack cover 10 refers to the battery pack cover that is integrated with the floor of the vehicle in order to achieve lightweighting of the vehicle. It is used to be assembled with the vehicle body and serve as the floor of the vehicle. Therefore, the seat crossbeam 100 is arranged on the battery pack cover 10, and the seat crossbeam body 110 and the battery pack cover 10 together form a first energy absorption cavity 111, and a first longitudinal reinforcement rib 120 and a transverse reinforcement rib 130 are arranged in the first energy absorption cavity 111, wherein the specific number of the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 can be determined according to the height and width of the first energy absorption cavity 111, and the height and width of the first energy absorption cavity 111 can be set according to the installation requirements of the vehicle seat 30. The embodiment of the present application does not limit this. When the vehicle has a side collision, the door sill beam transfers the force to the seat crossbeam 100, and the seat crossbeam body 110, the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 of the seat crossbeam 100 bear the force at the same time, thereby dispersing the force to each part. Compared with the single-layer plate structure, the structural strength of the seat crossbeam 100 is effectively improved, thereby improving the side collision resistance and bending resistance of the seat crossbeam 100.

[0068] At the same time, since the first longitudinal reinforcement ribs 120 and the transverse reinforcement ribs 130 are cross-arranged in the first energy absorption cavity 111 and the first longitudinal reinforcement ribs 120 and the transverse reinforcement ribs 130 pass through the first energy absorption cavity 111, the first longitudinal reinforcement ribs 120 and the transverse reinforcement ribs 130 can divide the first energy absorption cavity 111 into at least four energy absorption chambers. When the vehicle collides head-on, the central channel 20 of the vehicle transmits force to the seat crossbeam 100, and each energy absorption chamber absorbs the energy generated by the collision. Compared with the single energy absorption chamber formed by the single-layer plate structure, the energy absorption efficiency is higher, thereby effectively improving the vehicle's ability to resist head-on collision.

[0069] In addition, the seat crossbeam body 110, the first longitudinal reinforcement ribs 120 and the transverse reinforcement ribs 130 are integrally formed through an aluminum extrusion molding process. Compared with fixing the first longitudinal reinforcement ribs 120 and the transverse reinforcement ribs 130 to the seat crossbeam body 110 by welding or the like, the integral aluminum extrusion molding can maximize the reinforcing effect of the first longitudinal reinforcement ribs 120 and the transverse reinforcement ribs 130, further improving the structural strength of the seat crossbeam 100. Moreover, the aluminum seat crossbeam 100 is lighter in weight while maintaining sufficient structural strength, which is conducive to lightweighting of the vehicle.

[0070] Furthermore, the seat cross member 110, first longitudinal reinforcing ribs 120, and transverse reinforcing ribs 130 can be integrally extruded with the battery pack cover 10 through an aluminum extrusion process. This improves the stability of the connection between the seat cross member 100 and the battery pack cover 10, thereby enhancing the bending and collision resistance of the seat cross member 100. This also reduces assembly steps for the seat cross member 100, improving assembly efficiency.

[0071] Therefore, the seat crossbeam 100 provided in the embodiment of the present application increases the contact area between the sill beam and the seat crossbeam 100 when the vehicle is subjected to a side collision by integrally arranging the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 in the seat crossbeam body 110, and at the same time disperses the force among the seat crossbeam body 110, the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130, thereby effectively improving the side collision resistance and bending resistance of the seat crossbeam 100, and the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 divide the first energy absorption cavity 111 into multiple energy absorption chambers, thereby improving the energy absorption efficiency of the seat crossbeam 100 when the vehicle is subjected to a head-on collision, thereby ensuring that there is sufficient survival space in the vehicle when the vehicle is subjected to a head-on collision, and improving the vehicle's head-on collision resistance.

[0072] In some possible implementations, see Figure 1 、 Figure 2 and Figure 5As shown, the seat beam body 110 of the embodiment of the present application includes a mounting portion 112 and two support portions 113; the two support portions 113 are respectively connected to the two opposite sides of the mounting portion 112, the support portion 113 is used to connect to the battery pack cover 10, and the mounting portion 112 is used to connect to the vehicle seat 30; the two ends of the transverse reinforcement rib 130 are respectively connected to the two support portions 113, and one end of the first longitudinal reinforcement rib 120 is connected to the mounting portion 112.

[0073] In a specific implementation, the support portion 113 of the seat cross beam body 110 can be adjusted to the desired height of the seat 30 of the vehicle user, thereby adjusting the height of the seat cross beam 100. The mounting portion 112 is connected to the vehicle seat 30. The mounting portion 112 of the seat cross beam body 110 near the central tunnel 20 also needs to be connected to the central tunnel 20 to provide a mounting surface for the central tunnel 20. In the event of a head-on collision, the central tunnel 20 can transfer the energy generated by the impact to the seat cross beam 100. In addition, the ends of the transverse reinforcement rib 130 are respectively connected to the two support portions 113, and one end of the first longitudinal reinforcement rib 120 is connected to the mounting portion 112. In this way, the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 intersect and reinforce the seat cross beam body 110 from two mutually perpendicular directions, thereby further improving the structural strength of the seat cross beam 100.

[0074] In some possible implementations, see Figure 1 、 Figure 2 and Figure 5 As shown, at least one of the two support portions 113 and the first longitudinal reinforcing rib 120 of the embodiment of the present application is arranged obliquely.

[0075] It is understandable that, when the height of the seat crossbeam 100 is constant, the support portion 113 and the first longitudinal reinforcing rib 120 are tilted to increase the support portion 113 or the first longitudinal reinforcing rib 120 in the vertical direction. Figure 1 The length of the cross section in the middle AA direction is such that when the vehicle has a side collision, the contact area between the support portion 113 or the first longitudinal reinforcement rib 120 and the door sill beam is larger, thereby being able to withstand more force, further improving the side collision resistance of the seat cross beam 100.

[0076] It should be noted that when the support portion 113 is tilted, the tilt directions of the two support portions 113 can be set to different directions, so that the cross section of the seat beam 100 in the AA direction is trapezoidal, reducing the influence of the tilt of the support portion 113 on its supporting function.

[0077] In some possible implementations, see Figure 1 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, the seat crossbeam body 110 of the embodiment of the present application further includes at least two raised portions 114 ; the raised portions 114 are used to connect to the seat 30 , and the raised portions 114 are spaced apart on the mounting portion 112 , and the raised portions 114 and the mounting portion 112 together form a second energy absorption cavity 1141 .

[0078] It should be noted that when the vehicle is manufactured, it is necessary to manufacture seat beams 100 of different heights according to the different height requirements of the vehicle users for the seats 30. In particular, for the seat beam 100 in front of the seat 30, the height change is more obvious. Therefore, in response to the different height requirements of the seat beam 100, an increased portion 114 can be provided on the seat beam 100, and the increased portion 114 is provided on the mounting portion 112 to provide a mounting surface for the seat beam 100. The number of increased portions 114 corresponds to the mounting points of the seat 30 on the seat beam 100, and each mounting point corresponds to an increased portion 114. The specific connection method of the increased portion 114 and the seat beam body 110 is not described in the embodiments of this application. The limitation is that the seat 30 can be stably installed. For example, the heightening portion 114 is fixed to the seat crossbeam body 110 by welding. In this way, it is only necessary to set different types of heightening portions 114 according to different height requirements of the seat crossbeam 100, without adjusting the production mold of the entire seat crossbeam 100, effectively saving the production cost of the seat crossbeam 100; or, the seat crossbeam body 110 can also be integrally formed with the heightening portion 114 through an aluminum extrusion molding process. Although this cannot achieve direct replacement of the heightening portion 114 according to different height requirements, it can improve the stability of the connection between the heightening portion 114 and the seat crossbeam body 110, and can better ensure the safety above the seat 30.

[0079] Furthermore, by providing a heightened portion 114 on the mounting portion 112 of the seat cross beam body 110 instead of increasing the height of the entire seat cross beam body 110, the weight of the seat cross beam 100 can be reduced as much as possible while meeting the height requirement for installing the seat 30, saving the material used in the seat cross beam 100, which is beneficial to the lightweighting of the vehicle and saving the production cost of the seat cross beam 100.

[0080] In addition, when the seat crossbar body 110 near the central channel 20 is provided with a raised portion 114, due to the limited height of the central channel 20, the central channel 20 is still connected to the mounting portion 112, and the seat 30 is mounted on the raised portion 114. Whether the mounting portion 112 is provided with the raised portion 114 depends on the height requirement of the seat 30. For example, when a high-position seat 30 is required, such as Figure 8 As shown, a raised portion 114 may be provided on the seat crossbar body 110 provided in front of the seat 30; when a low-sitting seat 30 is required, as shown in FIG. Figure 9 As shown, the raised portion 114 may not be provided on the seat cross beam body 110 .

[0081] In some possible implementations, see Figure 1 、 Figure 6 and Figure 7 As shown, the embodiment of the present application further includes at least one second longitudinal reinforcing rib 140 ; ​​the second longitudinal reinforcing rib 140 is located in the second energy absorbing cavity 1141 , and both ends of the second longitudinal reinforcing rib 140 are respectively connected to the raised portion 114 and the mounting portion 112 .

[0082] In some embodiments, second longitudinal reinforcing ribs 140 are further disposed within the second energy-absorbing cavity 1141 defined by the raised portion 114 and the mounting portion 112 to enhance the structural strength of the raised portion 114 and improve the stability of the seat 30. The number of second longitudinal reinforcing ribs 140 can be adjusted based on the width of the raised portion 114, and this is not a limitation in this embodiment of the present application. The second longitudinal reinforcing ribs 140 and the raised portion 114 can be integrally extruded with the seat cross member 110 through aluminum extrusion to further enhance the stability of the raised portion 114.

[0083] In some possible implementations, see Figure 1 、 Figure 3 and Figure 4 As shown, the embodiment of the present application also includes a reinforcing plate 150 and a connecting member (not shown in the figure); the reinforcing plate 150 is connected to the side of the mounting portion 112 facing the battery pack cover 10, the mounting portion 112 is provided with a first mounting hole 1121, and the reinforcing plate 150 is provided with a second mounting hole 151; the connecting member is used to pass through the second mounting hole 151 and the first mounting hole 1121 in sequence to connect with the seat 30 of the vehicle.

[0084] Specifically, since the seat 30 often tends to tilt backward when the vehicle collides head-on, a reinforcement plate 150 is provided on the seat cross beam body 110 behind the seat 30. The reinforcement plate 150 is provided in the first energy absorption chamber 111 and is connected to the mounting portion 112. The connecting piece is passed through the second mounting hole 151 and the first mounting hole 1121 in sequence to connect with the seat 30 of the vehicle. This can improve the structural strength of the mounting portion 112 and reduce the possibility of deformation of the mounting portion 112 during a vehicle collision, causing the seat 30 to become disconnected from the mounting portion 112, thereby protecting the safety of the vehicle user.

[0085] In addition, a plurality of auxiliary mounting holes may be provided on the sides of the first mounting hole 1121 and the second mounting hole 151 to further enhance the stability of the connection between the seat 30 and the seat cross beam 100 . The specific structure is not limited in the embodiment of the present application.

[0086] In some possible implementations, see Figure 1 、 Figure 5 and Figure 6As shown, at least two grooves 115 are defined on the seat crossbar body 110 of the embodiment of the present application.

[0087] In a specific implementation, the seat cross beam body 110 located behind the seat 30 is provided with a groove 115 to provide foot space for passengers in the rear seat 30, thereby improving the user experience of the vehicle. At the same time, the groove 115 can also provide a larger installation space for some equipment in the vehicle. The specific position and number of the grooves 115 can be adjusted according to the position and number of the rear seat 30 or the equipment to be installed. The embodiment of the present application does not limit this. For example, the groove 115 can be set below the seat 30.

[0088] It should be noted that the prerequisite for setting the groove 115 on the seat crossbeam body 110 is to ensure that when the vehicle is side-impacted, the section of the seat crossbeam 100 from the end to the groove 115 can bear most of the force transmitted by the sill beam, thereby ensuring that the groove 115 part does not deform and affect the safety above the seat 30. When the groove 115 is set below the seat 30, if a small amount of the remaining impact force is transmitted to the installation point of the seat 30, due to the greater strength of the bottom of the seat 30, the impact force can be transmitted along the seat 30 to a section of the seat crossbeam 100 on the other side of the groove 115, thereby not affecting the living space above the seat 30.

[0089] Furthermore, a heater and air conditioner can be provided in the groove 115. In cold weather, the heater and air conditioner can be started at the same time to provide foot space for rear passengers, thereby warming their feet and further improving the user experience of the vehicle.

[0090] See also Figures 6 to 9 As shown, an embodiment of the present application further provides a battery pack, including a battery pack cover 10 and at least two of any of the above-mentioned seat cross beams 100 arranged on the battery pack cover 10.

[0091] The structure and working principle of the seat cross beam 100 are described in detail in the above embodiments and will not be repeated here.

[0092] In the embodiment of the present application, the number of seat crossbars 100 is related to the length of the vehicle and the layout of the seats 30. The specific number is not limited in the embodiment of the present application. When installing a row of seats 30, at least one seat crossbar 100 located in front of the seats 30 and one seat crossbar 100 located behind the seats 30 are required to provide a mounting surface for the seats 30. At the same time, the height of the seat crossbar 100 located in front of the seats 30 can be slightly higher than the seat crossbar 100 located behind the seats 30 to meet the installation requirements of the seats 30. The seat crossbar 100 is located on the battery pack cover 10. When assembling the vehicle, the battery pack cover 10 is connected to the vehicle body. The battery pack cover 10 serves as the vehicle floor, and the seat crossbar 100 does not need to be further connected to the vehicle body, thereby effectively improving the assembly efficiency of the vehicle, saving vehicle assembly costs, and contributing to the lightweighting of the vehicle.

[0093] See also Figure 6 、 Figure 7 and Figure 10 As shown, an embodiment of the present application also provides a vehicle, including a vehicle body and the above-mentioned battery pack arranged on the vehicle body.

[0094] It should be noted that the above-mentioned battery pack is arranged on the vehicle body, the battery pack cover 10 is integrated with the floor of the vehicle, and the seat crossbeam 100 is arranged on the battery pack cover 10. While protecting the living space inside the vehicle, it also avoids excessive squeezing of the battery cells inside the battery pack during a vehicle collision, plays a role in protecting the battery cells, and enables the battery pack to operate safely and stably, thereby improving the safety and collision resistance of the vehicle.

[0095] In some possible implementations, see Figure 2 、 Figure 6 、 Figure 7 and Figure 10 As shown, the vehicle body of the embodiment of the present application includes a central channel 20 and a door sill beam (not shown in the figure); the central channel 20 includes a central channel body 21 and a central channel mounting surface 22, and the central channel mounting surface 22 is arranged at one end of the central channel body 21 close to the seat cross beam 100; the central channel mounting surface 22 is connected to the mounting portion 112 of the seat cross beam 100, and there is a gap between the central channel body 21 and the supporting portion 113 of the seat cross beam 100; there is a gap between the door sill beam and the seat cross beam 100.

[0096] Specifically, the seat crossbeam 100 that is close to the middle channel body 21, the mounting portion 112 of the seat crossbeam body 110 provides an installation point for the mounting surface of the middle channel 20, and a gap is left between the support portion 113 of the seat crossbeam body 110 and the middle channel body 21. On the one hand, it provides a safe gap for the assembly of the vehicle to ensure the assembly quality. On the other hand, when the front of the vehicle is hit, the middle channel body 21 transfers the energy generated by the collision to the seat crossbeam 100. The gap between the two can play a buffering role, thereby improving the efficiency of force transmission. Similarly, retaining a gap between the door sill beam and the seat crossbeam 100 can provide a safe gap for assembly while playing a certain buffering role when the vehicle is hit from the side.

[0097] In summary, the seat crossbeam 100, battery pack and vehicle provided in the present application, the seat crossbeam 100 includes a seat crossbeam body 110, at least one first longitudinal reinforcement rib 120 and at least one transverse reinforcement rib 130; the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 are both arranged in the first energy absorption cavity 111 surrounded by the seat crossbeam body 110 and the battery pack cover 10, and the seat crossbeam body 110, the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 are integrally formed by aluminum extrusion. When the vehicle collides sideways, the seat crossbeam body 110, the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 contact the door sill beam at the same time, thereby distributing the force to the three, effectively improving the structural strength of the seat crossbeam 100 and improving its ability to resist side collisions. When the vehicle collides head-on, the first longitudinal reinforcement rib 120 and the transverse reinforcement rib 130 divide the first energy absorption cavity 111 into multiple energy absorption chambers, thereby effectively improving the energy absorption efficiency of the seat crossbeam 100, improving the bending resistance of the seat crossbeam 100, and protecting the production space inside the vehicle.

[0098] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0099] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0100] The terms "first," "second," "third," "fourth," and so on (if any) in the description and claims of the embodiments of the present application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein.

[0101] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0102] It will be understood that the various numerical numbers involved in the embodiments of the present application are merely distinctions for the convenience of description and are not intended to limit the scope of the embodiments of the present application.

[0103] It can be understood that in the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0104] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0105] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A chair crossbeam (100), characterized in that: It comprises a seat crossbeam body (110), at least one first longitudinal reinforcing rib (120) and at least one transverse reinforcing rib (130); The seat crossbeam body (110) is used to connect with the battery pack upper cover (10), and the seat crossbeam body (110) and the battery pack upper cover (10) together form a first energy absorption cavity (111), and the first longitudinal reinforcing rib (120) and the transverse reinforcing rib (130) are arranged in the first energy absorption cavity (111); One end of the first longitudinal reinforcing rib (120) is connected to the seat crossbeam body (110), and the other end of the first longitudinal reinforcing rib (120) is used to be connected to the battery pack upper cover (10). Both ends of the transverse reinforcing rib (130) are connected to the seat crossbeam body (110), and the first longitudinal reinforcing rib (120) and the transverse reinforcing rib (130) intersect. The seat crossbeam body (110), the first longitudinal reinforcing ribs (120) and the transverse reinforcing ribs (130) are integrally formed by aluminum extrusion.

2. The seat crossbar (100) according to claim 1, characterized in that The seat crossbeam body (110) includes a mounting portion (112) and two supporting portions (113); The two support portions (113) are respectively connected to two opposite sides of the mounting portion (112); the support portions (113) are used to be connected to the battery pack upper cover (10); and the mounting portion (112) is used to be connected to a seat (30) of a vehicle; Both ends of the transverse reinforcing rib (130) are respectively connected to the two supporting portions (113), and one end of the first longitudinal reinforcing rib (120) is connected to the mounting portion (112).

3. The seat crossbar (100) according to claim 2, characterized in that At least one of the two support portions (113) and the first longitudinal reinforcing rib (120) is arranged obliquely.

4. The seat crossbar (100) according to claim 2, characterized in that The seat crossbeam body (110) further includes at least two raised portions (114); The heightened portion (114) is used to connect with the seat (30), and each heightened portion (114) is arranged on the mounting portion (112) at intervals, and the heightened portion (114) and the mounting portion (112) together enclose a second energy absorption cavity (1141).

5. The seat crossbar (100) according to claim 4, characterized in that Also comprising at least one second longitudinal reinforcing rib (140); The second longitudinal reinforcing rib (140) is located in the second energy absorbing cavity (1141), and two ends of the second longitudinal reinforcing rib (140) are respectively connected to the heightened portion (114) and the mounting portion (112).

6. The seat crossbar (100) according to any one of claims 2 to 5, characterized in that: Also included are a reinforcing plate (150) and a connecting piece; The reinforcing plate (150) is connected to a side of the mounting portion (112) facing the battery pack upper cover (10); a first mounting hole (1121) is provided on the mounting portion (112), and a second mounting hole (151) is provided on the reinforcing plate (150); The connecting member is used to sequentially pass through the second mounting hole (151) and the first mounting hole (1121) to be connected to the seat (30) of the vehicle.

7. The seat crossbar (100) according to any one of claims 2 to 5, characterized in that: At least two grooves (115) are provided on the seat crossbeam body (110).

8. A battery pack, characterized in that: The invention comprises a battery pack upper cover (10) and at least two seat cross beams (100) according to any one of claims 1 to 7, which are arranged on the battery pack upper cover (10).

9. A vehicle, characterized in that: The invention comprises a vehicle body and the battery pack according to claim 8 arranged on the vehicle body.

10. The vehicle according to claim 9, characterized in that The vehicle body includes a central channel (20) and a door sill beam; The middle channel (20) comprises a middle channel body (21) and a middle channel mounting surface (22), wherein the middle channel mounting surface (22) is arranged at one end of the middle channel body (21) close to the seat crossbeam (100); The middle channel mounting surface (22) is connected to the mounting portion (112) of the seat cross beam (100), and a gap is provided between the middle channel body (21) and the supporting portion (113) of the seat cross beam (100); There is a gap between the door sill beam and the seat cross beam (100).

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