WO2023088494A1

WO2023088494A1 - Cross-beam assembly for second-row seats of vehicle and vehicle having same

Info

Publication number: WO2023088494A1
Application number: PCT/CN2022/143445
Authority: WO
Inventors: 陈劲松; 郑望; 于铁丰
Original assignee: 蔚来汽车科技(安徽)有限公司
Priority date: 2021-11-16
Filing date: 2022-12-29
Publication date: 2023-05-25
Also published as: CN113968171A

Abstract

Disclosed are a cross-beam assembly for second-row seats of a vehicle and a vehicle having same. The cross-beam assembly (1) comprises: a cross-beam body (10) comprising a vertical wall (11) extending in the transverse direction of the vehicle, a top wall (12) extending from the upper edge of the vertical wall to the rear of the vehicle, and a bottom wall (13) extending from the lower edge of the vertical wall to the front of the vehicle, the bottom wall being configured to be securable to a rear floor frame (2) of the vehicle, and the top wall being provided with a plurality of seat installation parts (121) which are arranged at intervals in the transverse direction and which are suitable for fitting the second-row seats; and first reinforcing brackets (20a) and second reinforcing brackets (20b) positioned below each seat installation part and being distributed on the left and right sides of each seat installation part, and being configured to respectively form a fixed connection to the cross-beam body and the rear floor frame. By means of the present cross-beam assembly, the lightweightness and space utilisation of a vehicle are improved whilst the installation strength and anti-submarining function of the second-row seats of the vehicle are ensured.

Description

The beam assembly for the second row of seats of the vehicle and the vehicle with it

priority claim

This application claims the priority of the following Chinese invention patent application: the Chinese invention patent application with application number "202111356445.X" filed on November 16, 2021. The content of this application is incorporated herein by reference in its entirety.

technical field

The invention relates to the technical field of vehicles, in particular to a beam assembly for a second-row seat of a vehicle and a vehicle having the same.

Background technique

With the continuous improvement of living standards, cars have become one of the most important travel tools for people. A car usually refers to a non-rail-mounted vehicle driven by power and with 4 or more wheels. Its main functions include walking, carrying people and transporting. Cars can not only bring people a safe, convenient and comfortable driving experience, but also optimize the industrial structure, improve economic development and change people's lifestyles.

Automobiles in the prior art generally include front seats and two rows of seats (or "rear seats"). When assembling the second row of seats, the rear floor frame of the car is usually provided with a seat beam extending in the lateral direction of the vehicle body (ie, the left-right direction of the vehicle body). In order to meet the design requirements of the amount of diving, a reinforcing beam is generally arranged on the seat beam to improve the strength of the seat beam. For example, Chinese utility model patent CN205589020U discloses a second-row seat installation structure of an automobile. The installation structure includes components such as seat beams and intermediate reinforcement beams. Both the seat beam and the middle reinforcement beam are U-shaped beams, and the middle reinforcement beam is arranged inside the middle section of the seat beam and is consistent with the opening direction of the seat beam. The seat cross member and the center reinforcement member are fastened to the rear floor above the body cross member by means of welded laps provided at the openings. A left reinforcing plate and a right reinforcing plate are respectively provided inside the two ends of the seat beam to further improve the strength of the seat beam.

However, the seat beams in the second-row seat installation structure form a closed structure together with the rear floor, and the middle reinforcement beam, the left reinforcement board and the right reinforcement board are all arranged in the closed structure, resulting in the failure of the installation structure. The overall weight is relatively heavy, which cannot meet the requirements of lightweight. In addition, the closed structure will take up too much space, resulting in a decrease in space utilization.

The art needs a new technical solution to solve the above problems.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, that is, in order to solve the technical problems of the low weight and low space utilization of the beam assembly used in the second row of seats of the vehicle in the prior art, the present invention provides a vehicle The beam assembly of the second row of seats. The beam assembly includes: a beam body including a vertical wall extending transversely of the vehicle, a top wall extending from an upper edge of the vertical wall toward the rear of the vehicle, and a a bottom wall extending from the lower edge of the vertical wall toward the front of the vehicle, the bottom wall is configured to be fixed to the rear floor frame of the vehicle; a plurality of seat mounting parts spaced apart from each other and adapted to assemble the second row of seats; and a first reinforcement bracket and a second reinforcement bracket, the first reinforcement bracket and the second reinforcement bracket being located at each of the The bottom of the seat installation part is distributed on the left and right sides of each seat installation part, and the first reinforcement bracket and the second reinforcement bracket are configured to be able to connect with the crossbeam body and the rear part respectively. The floor frame forms a fixed connection.

The crossbeam assembly used in the second row of seats of the present invention includes a crossbeam body, a first reinforcement bracket and a second reinforcement bracket. The beam body includes a vertical wall extending laterally of the vehicle (ie, the left-right direction of the vehicle body), a roof wall extending from an upper edge of the vertical wall toward the rear of the vehicle, and a lower edge of the vertical wall toward the front of the vehicle. Extended bottom wall. The vertical walls, the top wall, and the bottom wall together form a generally Z-shaped cross-section of the beam body. Wherein, the bottom wall is configured to be fixable on the rear floor frame of the vehicle, and the top wall is provided with a plurality of seat mounting parts spaced from each other in the transverse direction and suitable for assembling the second row of seats. When the beam body is fixed on the rear floor frame of the vehicle, the top wall of the beam body, the vertical wall, and the rear floor frame together form a roughly semi-closed cavity opening toward the rear of the vehicle. By utilizing the space of the semi-enclosed cavity (for example, arranging components such as the cooling module and the speed limiting module of the vehicle), the space utilization rate of the beam assembly of the present invention is significantly improved. Further, the semi-closed cavity can also protect the components arranged inside it to a certain extent. Furthermore, the semi-enclosed cavity is configured to open toward the rear of the vehicle, so that the rear space of the vehicle under the second row of seats can be fully utilized. Further, the first reinforcement bracket and the second reinforcement bracket are located below each seat installation part and are distributed on the left and right sides of each seat installation part, and the first reinforcement bracket and the second reinforcement bracket are configured to be respectively compatible with The beam body and the rear floor frame form a fixed connection. By arranging the first reinforcement bracket and the second reinforcement bracket distributed on the left and right sides of each seat installation part under each seat installation part, not only can the strength of each seat installation part be improved, but also ensure that it meets the diving capacity Design requirements, and can increase the strength of the entire beam body accordingly. At the same time, the weight of the beam assembly is significantly reduced by using the first reinforcement bracket and the second reinforcement bracket to replace the reinforcement beam (or reinforcement plate) in the prior art, thereby realizing the requirement of light weight.

In the above preferred technical solution of the beam assembly for the second row of seats of the vehicle, a seat installation hole is provided on each of the seat installation parts, and the first reinforcement bracket and the second reinforcement bracket The reinforcing brackets are arranged symmetrically with respect to the vertical centerlines of the corresponding seat mounting holes. The installation of the second row of seats can be made more convenient by providing a seat installation hole on each seat installation portion. In addition, the first reinforcement bracket and the second reinforcement bracket are arranged symmetrically with respect to the vertical center line of the corresponding seat installation hole, which can also make the structure of the first reinforcement bracket and the second reinforcement bracket simpler and more uniform in force .

In the preferred technical solution of the above-mentioned beam assembly for the second row of seats of the vehicle, each of the seat installation holes is a rectangular hole extending along the transverse direction, and on the two long sides of the rectangular hole First reinforcing protrusions facing each other are respectively provided. Through the above arrangement, the strength near the seat installation hole can be enhanced, ensuring that the second row of seats can be stably and firmly fixed on the cross member body.

In the above preferred technical solution of the beam assembly for the second row of seats of the vehicle, the first reinforcement bracket and the second reinforcement bracket are arranged in a figure-eight shape relative to the vertical centerline. Through the above arrangement, the structures of the first reinforcing bracket and the second reinforcing bracket can be made more stable, and the force can be more uniform.

In the above preferred technical solution of the crossbeam assembly for the second row of seats of the vehicle, each of the first reinforcement bracket and the second reinforcement bracket includes: a plate body; a first transverse fixing part, the transverse The first fixing part extends from the upper part of the board toward the first side of the board, and is configured to be fixed on the lower surface of the corresponding seat mounting part; the second transverse fixing part, the first fixing part Two transverse fixing parts extend from the lower part of the board body toward the second side of the board body opposite to the first side, and are configured to be fixable on the rear floor frame; and a third vertical fixing part part, the third vertical fixing part extends from one vertical edge of the board body toward the second side, and is configured to be fixable on the rear side of the vertical wall. Through the above arrangement, each of the first reinforcement bracket and the second reinforcement bracket can form a firm and stable fixed connection with the beam body and the rear floor frame respectively.

In the preferred technical solution of the above-mentioned beam assembly for the second row of seats of the vehicle, each of the first reinforcement bracket and the second reinforcement bracket further includes: a vertical flange, the vertical flange formed on the other vertical edge of the plate body and extending toward the first side. The strength of the first reinforcing bracket and the second reinforcing bracket can be further enhanced by setting the vertical turning.

In the preferred technical solution of the above-mentioned beam assembly for the second row of seats of a vehicle, a first positioning hole and a second positioning hole vertically spaced apart from each other are formed on the board body. A first positioning hole and a second positioning hole vertically spaced apart from each other are provided on the plate body to facilitate positioning during assembly, thereby improving assembly efficiency and accuracy.

In the preferred technical solution of the above-mentioned beam assembly for the second row of seats of the vehicle, the top wall is provided with weight reducing openings respectively located on the left and right sides of each of the seat installation parts. Through the above arrangement, the weight of the beam body can be reduced, and the weight reduction degree of the beam assembly can be improved.

In the above preferred technical solution of the beam assembly for the second row of seats of the vehicle, each of the weight reducing openings is configured as a bell mouth opening towards the rear of the vehicle. Each weight reduction port is configured as a bell mouth, which not only can increase the area of the weight reduction port to improve the lightness of the beam assembly, but also can make each seat mounting part form a roughly trapezoidal shape to improve its structural stability .

In the preferred technical solution of the above-mentioned beam assembly for the second row of seats of a vehicle, a supporting protrusion located at the bottom of each bell mouth and extending vertically upward is formed on the top wall. Through the above-mentioned arrangement, not only the rigidity and strength of the top wall can be improved to prevent it from deforming at the bell mouth, but also the vertically upwardly extending support protrusion can also play a role in supporting other components (such as the carpet of the vehicle).

In the preferred technical solution of the above-mentioned beam assembly for the second row of seats of the vehicle, first carpet installation parts are respectively provided at the left and right ends of the top wall, and each two adjacent weight-reducing openings A second carpet installation part is formed therebetween, and carpet installation holes are provided on both the first carpet installation part and the second carpet installation part. Through the above arrangement, the carpet of the vehicle can be conveniently fixed on the beam body, thereby improving the utilization rate of the beam body.

In the preferred technical solution of the above-mentioned beam assembly for the second row of seats of the vehicle, a plurality of lightening holes are formed on the vertical wall, and each of the lightening holes is located at the corresponding seat mounting position. The bottom part and between the first reinforcement bracket and the second reinforcement bracket. Through the above arrangement, the weight of the beam body can be further reduced, the weight reduction of the beam assembly can be improved, and the materials used can be reduced to reduce the manufacturing cost. In addition, the location of each weight-reducing hole below the corresponding seat mounting portion can also make the structure of the crossbeam body more regular, which is convenient for processing and manufacturing. Further, each weight-reducing hole is located between the first reinforcing bracket and the second reinforcing bracket, so that the first reinforcing bracket and the second reinforcing bracket can be used to enhance the rigidity and strength of the vertical wall near the weight-reducing hole and prevent its deformation.

In the preferred technical solution of the above-mentioned beam assembly for the second row of seats of the vehicle, there are also a plurality of vertical walls spaced apart from each other along the transverse direction and extending vertically rearward from the vertical wall on the vertical wall. The second reinforcement bulge. By arranging a plurality of second reinforcing protrusions on the vertical wall, the rigidity and strength of the beam body can be further improved to prolong its service life.

In the preferred technical solution of the above-mentioned beam assembly for the second row of seats of the vehicle, a third positioning hole and a fourth positioning hole are respectively provided on the left and right ends of the vertical wall. The third positioning hole and the fourth positioning hole are provided on the vertical wall to facilitate positioning during assembly, thereby improving assembly efficiency and accuracy.

In the preferred technical solution of the above-mentioned beam assembly for the second row of seats of the vehicle, the plurality of seat installation parts include a central seat installation part and symmetrically distributed on the left and right sides of the central seat installation part The left seat mounting portion and the right seat mounting portion, and the first reinforcement bracket and the second reinforcement bracket located under the left seat mounting portion can be connected with all the reinforcement brackets located under the right seat mounting portion The first reinforcing bracket and the second reinforcing bracket are exchanged. The first and second reinforcement brackets under the left seat mounting portion are respectively configured to be the same as the first and second reinforcement brackets under the right seat mounting portion, and thus are interchangeable. Obviously, this configuration can reduce the design cost and production cost of the reinforcing bracket. Further, during installation, it is not necessary to identify whether it is the reinforcement bracket for the left seat installation part or the reinforcement bracket for the right seat installation part, so this configuration also simplifies the assembly process.

In order to solve the existing above-mentioned problems, that is, in order to solve the technical problems of low weight and low space utilization of the beam assembly used for the second row of seats in the prior art, the present invention provides a vehicle, which includes : a rear floor frame; a second row of seats; and a beam assembly for a second row of seats of a vehicle according to any one of the above, the beam assembly is fixed on the rear floor frame, and the The second row of seats is fixed on the beam assembly. By adopting the beam assembly described in any one of the above, the vehicle of the present invention improves its light weight and space utilization rate on the basis of satisfying the installation strength of the second row of seats and the anti-submersion function, and further improves its power performance , in order to reduce energy consumption and increase cruising range.

Description of drawings

Describe preferred embodiment of the present invention below in conjunction with accompanying drawing, in the accompanying drawing:

Fig. 1 is a structural schematic diagram of an embodiment in which the crossbeam assembly of the second row of seats of the vehicle is assembled on the rear floor frame of the present invention;

Fig. 2 is a structural schematic diagram of an embodiment of the beam assembly used in the second row of seats of the vehicle according to the present invention;

3 is a schematic diagram of the first structure of an embodiment of the crossbeam body in the crossbeam assembly used in the second row of seats of the present invention;

Fig. 4 is a second structural schematic diagram of an embodiment of the crossbeam body in the crossbeam assembly used in the second row of seats of the present invention;

Fig. 5 is a partially enlarged view of part A of the embodiment of the left seat installation part in the beam assembly of the second row of seats of the present invention used in the vehicle shown in Fig. 4;

Fig. 6 is a schematic structural view of an embodiment of the first reinforcing bracket used in the beam assembly of the second row of seats of the vehicle according to the present invention.

List of reference signs:

1. Beam assembly; 10. Beam body; 11. Vertical wall; 111. Upper edge; 112. Lower edge; 113. Rear side; 114. Weight reduction hole; 114a. First weight reduction hole; Weight reduction hole; 114c, third weight reduction hole; 115, second reinforcement protrusion; 116a, third positioning hole; 116b, fourth positioning hole; 12, top wall; 121, seat installation part; 121a, left seat Chair installation part; 121b, center seat installation part; 121c, right seat installation part; 1211, seat installation hole; 12111, rectangular hole; ; 123, support protrusion; 124, first carpet installation part; 125, second carpet installation part; 1251, carpet installation hole; 13, bottom wall; 131, first end; 132, second end; 133, body; 20a, the first reinforcement bracket; 20b, the second reinforcement bracket; 21, the plate body; 211, the first side; 212, the second side; 213, the first vertical edge; 214, the second vertical edge; 215, the second 1 positioning hole; 216, the second positioning hole; 217, the third reinforcing protrusion; 22, the first horizontal fixing part; 23, the second horizontal fixing part; 231, the fixing hole; 24, the first vertical fixing part; 25 . Vertical flanging; 2. Rear floor frame; 200, beam, 210, first longitudinal beam; 220, second longitudinal beam.

Detailed ways

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

It should be noted that, in the description of the present invention, terms such as "upper", "lower", "left", "right", "inner", "outer" and other indicated directions or positional relationships are based on the terms shown in the accompanying drawings. The direction or positional relationship shown is only for convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present invention, unless otherwise specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be directly connected, or indirectly connected through an intermediary, or internally connected between two elements. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In order to solve the technical problems of low weight and low space utilization of the beam assembly used for the second row of seats in the prior art, the present invention provides a beam assembly 1 for the second row of seats in the vehicle . The crossbeam assembly 1 includes: a crossbeam body 10, the crossbeam body 10 includes a vertical wall 11 extending transversely of the vehicle, a top wall 12 extending from an upper edge 111 of the vertical wall 11 toward the rear of the vehicle, and a vertical The lower edge 11 of the wall 11 extends towards the front of the vehicle with a bottom wall 13 configured to be fixable to the rear floor frame 2 of the vehicle, and on the top wall 12 there are provided laterally spaced one from the other and adapted to fit A plurality of seat installation parts 121 of the second row of seats; and a first reinforcement bracket 20a and a second reinforcement bracket 20b, the first reinforcement bracket 20a and the second reinforcement bracket 20b are located below each seat installation part 121 and are distributed in The left and right sides of each seat mounting portion 121 , and the first reinforcement bracket 20 a and the second reinforcement bracket 20 b are configured to be fixedly connected to the beam body 10 and the rear floor frame 2 respectively.

Herein, unless expressly stated to the contrary, the term "longitudinal" refers to the front-rear direction of the vehicle, the term "transverse" refers to the left-right direction of the vehicle, and the term "vertical" refers to the up-down direction of the vehicle.

In one or more embodiments, the vehicle (not shown in the figure) of the present invention is a pure electric vehicle. Alternatively, the vehicle may also be a fuel vehicle, a hybrid vehicle, or other suitable vehicles. The vehicle includes but not limited to front row seats, second row seats, front floor frame, rear floor frame 2, and beam assembly 1 and other components. The front seats are arranged at the front of the vehicle body and fixed on the front floor frame. The second row of seats is fixed on the beam assembly 1, and the beam assembly 1 is fixed on the rear floor frame 2 (as shown in FIG. 1 ).

Fig. 1 is a structural schematic diagram of an embodiment of the present invention in which the beam assembly for the second row of seats of the vehicle is assembled on the rear floor frame. As shown in FIG. 1 , in one or more embodiments, a beam assembly 1 for a second-row seat of a vehicle according to the present invention is fixed on a rear floor frame 2 of the vehicle. The rear floor frame 2 has a beam 200 extending in the lateral direction of the vehicle, and a first side beam 210 and a second side beam 220 respectively extending from left and right ends of the beam 200 toward the rear of the vehicle. The beam assembly 1 is fixed on the beam 200 of the rear floor frame 2 and is located between the first longitudinal beam 210 and the second longitudinal beam 220 .

Fig. 2 is a structural schematic diagram of an embodiment of the beam assembly used in the second row of seats of the vehicle according to the present invention. As shown in FIG. 2 , in one or more embodiments, the beam assembly 1 includes a beam body 10 , and three sets of first reinforcement brackets 20 a and second reinforcement brackets 20 b fixed on the beam body 10 . Continuing to refer to FIG. 1 , the beam body 10 is fixed on the beam 200 , and each set of first reinforcing brackets 20 a and second reinforcing brackets 20 b is also fixed on the beam 200 , so that the beam body 10 has good rigidity and strength. By adopting the first reinforcing bracket 20a and the second reinforcing bracket 20b instead of reinforcing beams or reinforcing plates to strengthen the beam body 10, it is possible to reduce the weight of the reinforcing parts and improve the overall strength of the beam while meeting the rigidity and strength requirements. Into a lightweight level of 1.

Fig. 3 is the first structural schematic diagram of the embodiment of the crossbeam body in the crossbeam assembly used for the second row of seats of the vehicle according to the present invention; The second structural schematic diagram of the embodiment. As shown in FIGS. 3 and 4 , in one or more embodiments, the beam body 10 includes a vertical wall 11 , a top wall 12 and a bottom wall 13 . The beam body 10 can be integrally formed by casting process using galvanized steel or other suitable metal materials. The vertical wall 11 is configured to extend laterally of the vehicle, the top wall 12 extends from the upper edge 111 of the vertical wall 11 toward the rear of the vehicle, and the bottom wall 13 extends from the lower edge 112 of the vertical wall 12 toward the front of the vehicle. In one or more embodiments, the bottom wall 13 is fixed on the beam 200 of the rear floor frame 2 by welding, so that a firm and stable fixed connection is formed between the beam body 10 and the beam 200 . 1, when the beam body 10 is fixed on the rear floor frame 2 of the vehicle, the top wall 12 of the beam body 10, the vertical wall 11, and the rear floor frame 2 together encircle an opening towards the rear of the vehicle. A semi-closed cavity (not shown in the figure). Compared with the closed structure in the prior art, the beam assembly 1 of the present invention can use the space of the above-mentioned semi-closed cavity to arrange components such as the cooling module and the speed limiting module of the vehicle, thereby improving the space utilization rate. Further, the semi-closed cavity can also protect the components arranged inside it to a certain extent. Furthermore, the semi-enclosed cavity is configured to open toward the rear of the vehicle, so that the rear space of the vehicle under the second row of seats can be fully utilized.

Continuing to refer to FIG. 3 and FIG. 4 , in one or more embodiments, the vertical wall 11 has a vertical wall body (not shown) extending substantially along the vertical direction of the vehicle (ie, the vertical direction of the vehicle). In one or more embodiments, a third positioning hole 116a and a fourth positioning hole 116b are respectively provided on the left and right sides of the vertical wall 11, so as to facilitate assembly positioning and improve assembly efficiency. In one or more embodiments, the vertical wall 11 is also provided with three lightening holes 114 spaced from each other along the transverse direction, which are the first lightening hole 114a, the second lightening hole 114b, and the third lightening hole in sequence. Lightening hole 114c. In one or more embodiments, the first weight reducing hole 114a and the third weight reducing hole 114c are rectangular holes, and the second weight reducing hole 114b is a trapezoidal hole, so that the vertical wall 11 has a regular and symmetrical structure, which is convenient processing. Alternatively, the number of lightening holes 114 can also be set to other suitable numbers that are more or less than three. Alternatively, the shape of each lightening hole 114 can also be set as a square, a circle, or other suitable shapes. The setting of the lightening hole 114 can not only reduce the weight of the beam body 10 and increase the weight reduction of the beam assembly 1 , but also reduce the materials used and the manufacturing cost. In one or more embodiments, the vertical wall 11 is further provided with a plurality of second reinforcing protrusions 115 spaced apart from each other in the transverse direction and extending vertically backward from the vertical wall 11 . The setting of the second reinforcing protrusion 115 can further strengthen the rigidity and strength of the vertical wall 11, thereby prolonging its service life. It can be understood that the quantity and arrangement positions of the second reinforcing protrusions 115 can be adjusted according to actual needs.

3 and 4, in one or more embodiments, the top wall 12 has three seat mounting parts 121 spaced from each other along the lateral direction, that is, the left seat mounting part 121a, the center seat mounting part 121b, and the right seat mounting portion 121c. Each weight reducing hole 114 is located below a corresponding seat mounting portion 121 . Alternatively, the number of seat mounting parts 121 can also be set to other suitable numbers more or less than 3, such as 2, 4 and so on. Each seat mounting portion 121 has a substantially trapezoidal shape, giving it a stable structure. Each seat mounting portion 121 is provided with a seat mounting hole 1211 for mounting the second row of seats. Fig. 5 is a partial enlarged view of part A of the embodiment of the left seat mounting part in the beam assembly of the second-row seat used in the vehicle shown in Fig. 4 . As shown in FIG. 5 , in one or more embodiments, each seat mounting hole 1211 is a rectangular hole 12111 . Alternatively, the seat installation hole 1211 may also be set in a square, circular or other suitable shape. In one or more embodiments, two first reinforcing protrusions 1212 opposite to each other are respectively provided on the two long sides of the rectangular hole 12111 . Each reinforcing protrusion 1212 is configured to extend vertically downward from the top wall 12 . The setting of the first reinforcing protrusion 1212 can enhance the rigidity and strength of the seat installation part 121 , especially near the seat installation hole 1211 . In addition, the arrangement of the two first reinforcing protrusions 1212 opposite to each other can also make the force near the rectangular hole 12111 more uniform.

Continuing to refer to FIG. 3 and FIG. 4 , in one or more embodiments, a weight reducing port 122 is respectively provided at the left and right ends of each seat mounting portion 121 . In one or more embodiments, the lightening port 122 is a bell mouth 1221 that is gradually enlarged and opens towards the rear of the vehicle (that is, the direction away from the upper edge 111 of the vertical wall 11), so that the top wall 12 meets the requirement of rigidity. Reduce its weight as much as possible under the condition of strength and strength, and then improve the lightweight level. In one or more embodiments, a support protrusion 123 is formed on the top wall 12 and is located at the bottom of each bell mouth 1221 and extends vertically upward. The arrangement of the supporting protrusions 123 can not only enhance the rigidity and strength of the top wall 12 near the bell mouth 1221, but also provide good support for the carpet (not shown in the figure) covered thereon.

Continuing to refer to Fig. 3 and Fig. 4, in one or more embodiments, two first carpet installation parts 124 are respectively provided at the left and right ends of the top wall 12, and each two adjacent weight-reducing openings 122 One second carpet mounting portion 125 is formed therebetween. Each first carpet installation part 124 and each second carpet installation part 125 is provided with a carpet installation hole 1251 in order to fix the carpet on the top wall 12 more firmly. The carpet installation hole 1251 can be a circular hole, a square hole or other suitable shape of the installation hole.

As shown in FIG. 4 , in one or more embodiments, the bottom wall 13 is a substantially rectangular strip structure. Based on the orientation shown in FIG. 4 , the bottom wall 13 includes a body 133 located below the vertical wall 11 , a first end 131 extending from the body 133 toward the left, and a second end 132 extending from the body 133 toward the right. Through the above-mentioned setting, the beam body 10 presents a "convex"-shaped structure with a short top and a long bottom in the lateral direction, making it more stable. In addition, the longer bottom wall 13 can also make the force on the beam body 10 more uniform. Furthermore, the space above the first end 131 and the second end 132 can also be used for arranging pipelines, laying sill pressure plates, etc., thereby further improving space utilization.

Continuing to refer to Figure 2, in one or more embodiments, a first reinforcement bracket 20a and a second reinforcement bracket 20a and a second reinforcement bracket 20a are respectively provided on the lower part of each seat installation part 121 and on the left and right sides of each seat installation part 121. bracket 20b. Therefore, each set of the first reinforcing bracket 20 a and the second reinforcing bracket 20 b is also located on the left and right sides of the corresponding weight reducing hole 114 , so that the rigidity and strength near the weight reducing hole 114 can be enhanced. Preferably, the first reinforcement bracket 20a and the second reinforcement bracket 20b are arranged symmetrically with respect to the vertical center line of the seat installation hole 1211 on the corresponding seat installation portion 121 . More preferably, the first reinforcing bracket 20a and the second reinforcing bracket 20b are arranged in a figure-eight shape relative to the vertical centerline of the seat mounting hole 1211 on the corresponding seat mounting portion 121, that is, the first reinforcing bracket 20a and the second reinforcing bracket 20a The lateral distance between the upper ends of the reinforcement brackets 20b is smaller than the lateral distance between the lower ends of the first reinforcement bracket 20a and the second reinforcement bracket 20b. Through the above arrangement, the stress of the first reinforcing bracket 20a and the second reinforcing bracket 20b can be more uniform, and the structure is more stable. In one or more embodiments, the first reinforcement bracket 20a and the second reinforcement bracket 20b under the left seat mounting part 121a are respectively connected with the first reinforcement bracket 20a and the second reinforcement bracket 20b below the right seat mounting part 121c. The same, so the two sets of first reinforcing brackets 20a and second reinforcing brackets 20b can be replaced with each other. In one or more embodiments, the first reinforcement bracket 20a and the second reinforcement bracket 20b located under the central seat mounting portion 121b are larger in size than those located at the left seat mounting portion 121a and the right seat mounting portion 121c. The first reinforcing bracket 20a and the second reinforcing bracket 20b below, but in shape, all the first reinforcing brackets 20a are the same, and all the second reinforcing brackets 20a are also the same.

Fig. 6 is a schematic structural view of an embodiment of the first reinforcing bracket used in the beam assembly of the second row of seats of the vehicle according to the present invention. As shown in FIG. 6, in one or more embodiments, the first reinforcing bracket 20a has a plate body 21, a first horizontal fixing portion 22, a second horizontal fixing portion 23, and a first vertical fixing portion 24, etc. . The first reinforcing bracket 20a can be integrally formed by casting process using galvanized steel or other suitable metals. The second reinforcing bracket 20b forms a mirror image symmetrical structure with the first reinforcing bracket 20a. Therefore, only the structure of the first reinforcing bracket 20a will be described below, and the structure of the second reinforcing bracket 20b will not be repeated.

Continuing to refer to Fig. 6, the plate body 21 is a substantially rectangular plate-shaped structure, and extends vertically obliquely. In one or more embodiments, a first positioning hole 215 and a second positioning hole 216 vertically spaced from each other are provided on the plate body 21 to facilitate assembly positioning and improve assembly efficiency. In one or more embodiments, a third reinforcement protrusion 217 extending vertically downward is further provided on the upper part of the board body 21 to enhance the rigidity and strength of the joint between the board body 21 and the first transverse fixing portion 22 .

Continuing to refer to FIG. 6 , the first transverse fixing portion 22 extends from the upper portion of the board body 21 toward the first side 211 of the board body 21 . Based on the orientation shown in FIG. 6 , the first side 211 is the right side of the plate body 21 . In the assembled state, the first lateral fixing portion 22 is fixed on the lower surface of the corresponding seat mounting portion 121 . Preferably, the first transverse fixing portion 22 is configured to be fixed on the seat mounting portion 121 by welding, so as to obtain a firm and stable fixed connection.

Continuing to refer to FIG. 6 , the second transverse fixing portion 23 extends from the lower portion of the board body 21 toward the second side 212 of the board body 21 opposite to the first side 211 . Based on the orientation shown in FIG. 6 , the second side 212 is the left side of the plate body 21 . In one or more embodiments, a fixing hole 231 is provided on the second transverse fixing portion 23, so that the first reinforcing bracket 20a and the second reinforcing bracket 20a can be connected to each other through a rotary tapping riveting process (ie, FDS, Flow Drill Screw). The bracket 20b is conveniently assembled to the beam 200 of the rear floor frame 2, thereby improving assembly efficiency.

Continuing to refer to FIG. 6 , the third vertical fixing portion 24 extends from the first vertical edge 213 of the board body 21 toward the second side 212 . Based on the orientation shown in FIG. 6 , the first vertical edge 213 is the left vertical edge of the plate body 21 . The third vertical fixing portion 24 is configured to be fixed on the rear side 113 of the vertical wall 11 of the beam body 10 . Preferably, the third vertical fixing portion 24 is configured to be fixed on the rear side 113 by welding, so as to obtain a firm and stable fixed connection.

Continuing to refer to FIG. 6 , in one or more embodiments, the first reinforcing bracket 20 a also has a vertical flange 25 . The vertical flange 25 is formed on the second vertical edge 214 of the board body 21 and extends toward the first side 211 . Based on the orientation shown in FIG. 6 , the second vertical edge 214 is the right vertical edge of the plate body 21 . The rigidity and strength of the first reinforcing bracket 20a can be further enhanced by providing the vertical flange 25, thereby prolonging the service life.

It should be noted that, in one or more embodiments, the first reinforcing bracket 20 a may also only have a plate body 21 , a first transverse fixing portion 22 and a second transverse fixing portion 23 . Alternatively, the first reinforcing bracket 20a may only have the plate body 21 , the second transverse fixing portion 23 and the first vertical fixing portion 24 . Wherein, the specific embodiment of each component (that is, the plate body 21, the first horizontal fixing portion 22, the second horizontal fixing portion 23, and the first vertical fixing portion 24) can be configured the same as any of the above-mentioned embodiments, I won't repeat them here.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, but those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

A crossbeam assembly for a second-row seat of a vehicle, characterized in that the crossbeam assembly includes:

a beam body comprising a vertical wall extending transversely of the vehicle, a top wall extending from an upper edge of the vertical wall toward the rear of the vehicle, and a lower wall extending from the vertical wall a bottom wall whose edge extends towards the front of the vehicle, the bottom wall is configured to be fixable to the rear floor frame of the vehicle, and on the top wall is provided a plurality of seat mounting portions for assembling the second row of seats; and

a first reinforcement bracket and a second reinforcement bracket, the first reinforcement bracket and the second reinforcement bracket are located below each of the seat installation parts and distributed on the left and right sides of each of the seat installation parts, Moreover, the first reinforcement bracket and the second reinforcement bracket are configured to be fixedly connected to the beam body and the rear floor frame, respectively.
The crossbeam assembly for the second row of seats of a vehicle according to claim 1, wherein a seat installation hole is provided on each of the seat installation parts, and the first reinforcing bracket and the The second reinforcing brackets are arranged symmetrically with respect to the vertical centerlines of the corresponding seat mounting holes.
The crossbeam assembly for the second row of seats of a vehicle according to claim 2, wherein each of the seat mounting holes is a rectangular hole extending along the transverse direction, and the two sides of the rectangular hole are The two long sides are respectively provided with first reinforcing protrusions opposite to each other.
The cross member assembly for the second row of seats of a vehicle according to claim 2, wherein the first reinforcement bracket and the second reinforcement bracket are arranged in a figure-eight shape relative to the vertical centerline.
The cross member assembly for the second row of seats of a vehicle according to claim 4, wherein each of the first reinforcement bracket and the second reinforcement bracket comprises:

Board;

a first transverse fixing portion, the first transverse fixing portion extends from the upper portion of the board toward the first side of the board, and is configured to be fixable on the lower surface of the corresponding seat mounting portion;

a second lateral fixing portion extending from a lower portion of the board toward a second side of the board opposite to the first side and configured to be fixed to the rear floor on the skeleton; and

A third vertical fixing part, the third vertical fixing part extends from one vertical edge of the board body toward the second side, and is configured to be fixed on the rear side of the vertical wall.
The cross member assembly for the second row of seats of a vehicle according to claim 5, wherein each of the first reinforcement bracket and the second reinforcement bracket further comprises:

A vertical flange is formed on the other vertical edge of the plate body and extends toward the first side.
The cross member assembly for the second row of seats of a vehicle according to claim 5, wherein a first positioning hole and a second positioning hole vertically spaced apart from each other are formed on the plate body.
The crossbeam assembly for the second row of seats of the vehicle according to claim 1, characterized in that, the top wall is provided with weight-reducing openings respectively located on the left and right sides of each of the seat mounting parts .
The cross member assembly for a second row of seats of a vehicle according to claim 8, wherein each of the weight reducing openings is configured as a bell mouth opening toward the rear of the vehicle.
The crossbeam assembly for the second row of seats of a vehicle according to claim 9, wherein a supporting protrusion is formed on the top wall and is located at the bottom of each bell mouth and extends vertically upward.
According to claim 8, the beam assembly for the second row of seats of the vehicle is characterized in that first carpet installation parts are respectively provided at the left and right ends of the top wall, and each two adjacent A second carpet installation part is formed between the weight reducing openings, and carpet installation holes are provided on both the first carpet installation part and the second carpet installation part.
The crossbeam assembly for the second row of seats of the vehicle according to claim 1, wherein a plurality of lightening holes are formed on the vertical wall, and each of the lightening holes is located at the corresponding Below the seat mounting part and between the first reinforcement bracket and the second reinforcement bracket.
The crossbeam assembly for the second row of seats of the vehicle according to claim 1, characterized in that, there are further installations on the vertical wall that are spaced apart from each other in the transverse direction and vertically rearward from the vertical wall. Extended plurality of second reinforcing protrusions.
The crossbeam assembly for the second row of seats of the vehicle according to claim 1, wherein a third positioning hole and a fourth positioning hole are respectively provided on the left and right ends of the vertical wall.
The crossbeam assembly for the second row of seats of a vehicle according to claim 1, wherein the plurality of seat installation parts include a central seat installation part and symmetrically distributed on the central seat installation part The left seat mounting part and the right seat mounting part on the left and right sides, and the first reinforcement bracket and the second reinforcement bracket located under the left seat mounting part The first reinforcing bracket and the second reinforcing bracket under the lower part are exchanged.
A vehicle, characterized in that the vehicle comprises:

Rear floor frame;

second-row seats; and

According to the beam assembly for the second row of seats of a vehicle according to any one of claims 1-15, the beam assembly is fixed on the rear floor frame, and the second row of seats is fixed on the on the beam assembly.