Front-row seat rear installation cross beam, floor assembly and vehicle

Abstract

The utility model belongs to the technical field of vehicle body structures, and particularly relates to a front-row seat rear installation cross beam, a floor assembly and a vehicle. The front-row seat rear installation cross beam comprises a first cross beam main body, a second cross beam main body and a third cross beam main body, the longitudinal section of the first cross beam main body is M-shaped; first reinforcing ribs are arranged at the two ends of the first cross beam main body, and the length direction of the reinforcing ribs is the same as that of the first cross beam main body; crumple ribs are further arranged at the two ends of the first cross beam body, and the length direction of the crumple ribs is perpendicular to the length direction of the first cross beam body. The utility model aims to meet the requirement of seat installation and effectively resist deformation at the same time so as to meet the newest requirements of China Pecurity and research in the 2023 edition and C-NCAP double-five-star collision in the 2024 edition.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the vehicle body structure technical field, concretely relates to a front row seat rear installation crossbeam, floor assembly and vehicle. BACKGROUND

[0002] With the development of automobile industry and the improvement of environmental protection requirement, new energy vehicles have developed rapidly, wherein hybrid electric vehicles solve the shortcomings of short endurance of pure electric vehicles and high fuel consumption of traditional fuel vehicles, and are more and more favored by people, and the safety of new energy vehicles is also more and more valued by consumers.

[0003] The power battery of the electric vehicle is generally installed below the floor, so that there is no space below the floor to arrange the reinforcing crossbeam, and since the battery of the pure electric vehicle is relatively large and is generally installed on the threshold beam on both sides, the battery shell and the floor can form a closed loop structure to effectively resist the side collision impact force, but the battery pack of the hybrid electric vehicle is generally small in size, and cannot be connected with the threshold beam on both sides, so that an effective force transmission path cannot be formed, and when the side is impacted, the floor at the lower part of the B column will be deformed greatly, endangering the safety of the passengers.

[0004] The 2024 version of C-NCAP evaluation standard adds side impact to the side column impact of the electric vehicle, and the collision energy is increased by about 75% compared with the 2021 version, and the impact energy of the side impact of the 2023 version of the research institute is increased by about 10% compared with the 2020 version, with the tightening of the side impact evaluation standard, the design of the B column lower part area and the floor reinforcing crossbeam structure also faces new challenges, and the existing seat installation rear crossbeam structure above the floor cannot meet the latest collision requirements, so a new type of front floor seat installation rear crossbeam structure needs to be developed to meet the seat installation and effectively resist deformation to meet the latest 2023 version of the research institute and the 2024 version of C-NCAP double five-star collision requirements. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a front row seat rear installation crossbeam, floor assembly and vehicle, which can meet the seat installation and effectively resist deformation to meet the latest 2023 version of the research institute and the 2024 version of C-NCAP double five-star collision requirements.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical scheme:

[0007] A front row seat rear installation crossbeam, comprising:

[0008] A first crossbeam main body is transversely installed on the upper end surface of the front floor and connected with the threshold side beam on both sides;

[0009] The longitudinal section of the first crossbeam main body is M-shaped.

[0010] The first beam body is provided with a first reinforcing rib at both ends, and the length direction of the first reinforcing rib is the same as the length direction of the first beam body.

[0011] The first beam body is further provided with a collapse rib at both ends, and the length direction of the collapse rib is perpendicular to the length direction of the first beam body.

[0012] Further limitation, the first beam body is provided with a beam end flanging structure at both ends.

[0013] Such a structure design, through the setting of the beam end flanging structure, can increase the connection area of the first beam body and the rocker side beam, and further strengthen the connection strength between the first beam body and the rocker side beam, and has strong practicability.

[0014] Further limitation, the beam end flanging structure is vertically provided with a second reinforcing rib.

[0015] Such a structure design, through the setting of the second reinforcing rib, makes the beam end flanging structure and the rocker side beam better fit, and has strong practicability.

[0016] Further limitation, the first beam body is fixedly provided with a reinforcing structure.

[0017] Such a structure design, through the reinforcing structure to strengthen the structural strength of the first beam body, without increasing the thickness of the raw material of the first beam body, realizes the lightweight of the vehicle body, enhances the structural strength of the first beam body, and further improves the performance of the rear mounting beam of the front row seat and the anti-collision deformation ability, and has strong practicability.

[0018] Further limitation, the reinforcing structure is a hot forming patch plate.

[0019] Such a structure design, through the hot forming patch plate as the reinforcing structure, by welding the hot forming patch plate and the first beam body first, then heating the whole to-℃ and keeping warm, and then completing the stamping forming and quenching process in the mold together, the first beam body and the hot forming patch plate are integrally formed, the parts formed by this hot forming patch plate technology have the characteristics of high mechanical strength and strong impact resistance, and can reduce the number of stamping dies, greatly reducing the cost of tool development, and has strong practicability.

[0020] Further limitation, the first beam body includes a main beam and a sub-beam, and a connecting plate is arranged between the main beam and the sub-beam, and the main beam, the sub-beam and the connecting plate are integrally stamped and formed.

[0021] The outer side of the main beam and the sub-beam is provided with a beam side flanging structure.

[0022] The connecting plate and the two beam side flanging structures are welded with the front floor.

[0023] The structure design, through the integral stamping forming of the main beam, the auxiliary beam and the connecting plate, cooperates with the front floor welding, forms two independent cavities, and forms nine force transmission paths composed of the two beam side flanging structures, the main beam first side, the main beam top surface, the main beam second side, the connecting plate, the auxiliary beam first side, the auxiliary beam top surface and the auxiliary beam second side, can effectively disperse the impact energy in the collision, greatly improves the anti-deformation ability, thereby improving the safety performance of the vehicle side collision, and reducing the manufacturing and installation difficulty of the first beam body, and the practicability is high.

[0024] Further limitation, the reinforcing structure is two, and is arranged in the main beam and the auxiliary beam.

[0025] The structure design, through the reinforcing structure is arranged as two, and is dispersed and independently installed, can reduce the overall width of the reinforcing structure, and the practicability is high.

[0026] Further limitation, the connecting plate is provided with a through reinforcing rib between the main beam and the auxiliary beam.

[0027] The structure design, through the setting of the through reinforcing rib, can strengthen the connection strength between the main beam and the auxiliary beam, and the practicability is high.

[0028] A floor assembly, comprising a front floor and the front seat rear mounting beam, the front floor is further provided with a second beam body and a rocker side beam on both sides of the front floor;

[0029] The two ends of the first beam body and the second beam body are fixedly connected with the rocker side beam.

[0030] The structure design, through the first beam body and the second beam body, the installation of the seat is completed, the support span of the seat on the horizontal plane is increased, the seat installation is more stable, and the practicability is high.

[0031] A vehicle, comprising a seat and the floor assembly, the seat is installed on the first beam body and the second beam body.

[0032] The utility model adopting the above technical scheme has the following advantages:

[0033] 1. The first beam body in the shape of M-shaped longitudinal section provides multiple force transmission paths, which can effectively disperse the impact energy during collision, greatly improves the performance of the rear seat mounting cross beam and the ability to resist deformation in collision, and utilizes the first reinforcing rib and the collapse rib arranged at the same time, so that the first reinforcing rib plays a reinforcing role, and the collapse rib plays a role of buffering energy during collision, the combination of the two greatly improves the overall strength and deformation resistance of the cross beam, effectively protects the power battery and passenger compartment below the floor, thereby meeting the requirements of the latest 2023 version of the China Insurance Research and the 2024 version of the C-NCAP double five-star collision, while effectively resisting deformation to meet the requirements of the latest 2023 version of the China Insurance Research and the 2024 version of the C-NCAP double five-star collision;

[0034] 2. The structure strength of the first beam body is strengthened by the reinforcing structure, which realizes the lightweight of the vehicle body without increasing the thickness of the first beam body, thereby enhancing the structure strength of the first beam body and improving the performance of the rear seat mounting cross beam and the ability to resist deformation in collision, and the practicability is high;

[0035] 3. The hot forming patch plate is used as the reinforcing structure, the hot forming patch plate is welded with the first beam body, then the two are heated to a certain temperature and kept, and then the stamping forming and quenching processes are completed in the mold, so that the first beam body and the hot forming patch plate are integrally formed, the parts formed by the hot forming patch plate technology have the characteristics of high mechanical strength and strong impact resistance, and the number of stamping dies can be reduced, the development cost of tooling is greatly reduced, and the practicability is high;

[0036] 4. The main beam, the auxiliary beam and the connecting plate are integrally formed, which are welded with the front floor to form two independent cavities, and form nine force transmission paths composed of two beam side flanging structures, a first side surface of the main beam, a top surface of the main beam, a second side surface of the main beam, a connecting plate, a first side surface of the auxiliary beam, a top surface of the auxiliary beam and a second side surface of the auxiliary beam, which can effectively disperse the impact energy during collision, greatly improve the deformation resistance, thereby improving the safety performance of vehicle side collision, and reducing the manufacturing and installation difficulty of the first beam body, and the practicability is high. BRIEF DESCRIPTION OF DRAWINGS

[0037] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings;

[0038] Fig. 1 It is a structure schematic view of the front seat rear mounting cross beam, the floor assembly and the vehicle embodiment of the utility model;

[0039] Fig. 2 It is a structure schematic view of the first beam body part in the front seat rear mounting cross beam, the floor assembly and the vehicle embodiment of the utility model;

[0040] Fig. 3 Figure 1 is a partial enlarged structural schematic view of a front-row seat rear mounting cross beam, floor assembly and vehicle embodiment of the present application;

[0041] Fig. 4 Figure 2 is a structure schematic view of a first cross beam main body part longitudinal section of the front-row seat rear mounting cross beam, floor assembly and vehicle embodiment of the present application;

[0042] The main element symbol explanations are as follows:

[0043] First cross beam main body 1, main cross beam 11, collapse rib 110, first reinforcing rib 111, through reinforcing rib 112,

[0044] Sub cross beam 12, connecting plate 120, cross beam end flange structure 121, second reinforcing rib 122,

[0045] Main cross beam first side surface 126, main cross beam top surface 127, main cross beam second side surface 128, sub cross beam first side surface 129, sub cross beam top surface 130, sub cross beam second side surface 131,

[0046] Thermoplastic patch plate 13, cross beam side flange structure 14,

[0047] Second cross beam main body 2, rocker side beam 3, front floor 4. DETAILED DESCRIPTION

[0048] The present application will be described in detail below in conjunction with the drawings and specific embodiments. It should be noted that similar or identical parts are denoted by the same reference numerals in the drawings or description, and the implementation not shown or described in the drawings is in a form known to those skilled in the art. In addition, the direction terms mentioned in the embodiments, such as "up", "down", "top", "bottom", "left", "right", "front", "back", etc., are only with reference to the direction of the drawings, and are not intended to limit the scope of protection of the present application.

[0049] As shown in Figs. 1-4 The front-row seat rear mounting cross beam of the present application comprises:

[0050] The first cross beam main body 1 is transversely mounted on the upper end surface of the front floor 4 and is overlapped with the two rocker side beams 3 at both ends;

[0051] The longitudinal section of the first cross beam main body 1 is in the shape of M;

[0052] Both ends of the first cross beam main body 1 are provided with the first reinforcing rib 111, and the length direction of the first reinforcing rib 111 is the same as the length direction of the first cross beam main body 1;

[0053] The first beam body 1 is further provided with a collapse rib 110 at both ends, and the length direction of the collapse rib 110 is perpendicular to the length direction of the first beam body 1.

[0054] The first beam body 1 is further provided with a beam end flanging structure 121 at both ends.

[0055] The beam end flanging structure 121 can increase the connection area between the first beam body 1 and the rocker side beam 3, thereby enhancing the connection strength between the first beam body 1 and the rocker side beam 3, and the practicability is high.

[0056] The beam end flanging structure 121 is vertically provided with a second reinforcing rib 122.

[0057] The second reinforcing rib 122 can make the beam end flanging structure 121 better fit the rocker side beam 3, and the practicability is high.

[0058] The first beam body 1 is fixedly provided with a reinforcing structure.

[0059] The reinforcing structure can enhance the structural strength of the first beam body 1 without increasing the thickness of the first beam body 1, thereby realizing the lightweight of the vehicle body, enhancing the structural strength of the first beam body 1, improving the performance of the rear seat installation beam and the anti-collision deformation ability, and the practicability is high.

[0060] The reinforcing structure is a hot forming patch plate 13.

[0061] In fact, a steel bar can also be welded on the first beam body 1 as the reinforcing structure according to actual conditions. In the embodiment, the hot forming patch plate 13 is used as the reinforcing structure. The hot forming patch plate 13 is welded with the first beam body 1, and then the two are heated to 930-950 degrees Celsius and kept warm. Then the stamping forming and quenching process are completed in the mold, so that the first beam body 1 and the hot forming patch plate 13 are integrally formed. The hot forming patch plate technology has the characteristics of high mechanical strength and strong impact resistance, and can reduce the number of stamping dies and greatly reduce the cost of tool development, and the practicability is high.

[0062] The first beam body 1 includes a main beam 11 and a sub-beam 12, and a connecting plate 120 is arranged between the main beam 11 and the sub-beam 12, and the main beam 11, the sub-beam 12 and the connecting plate 120 are integrally stamped and formed.

[0063] The main beam 11 and the sub-beam 12 are both provided with a beam side flanging structure 14.

[0064] The connecting plate 120 and the two beam side flanging structures 14 are both welded with the front floor 4.

[0065] In fact, the first beam body 1 can also be divided into two independent main beams 11 and auxiliary beams 12 according to actual conditions. In the embodiment, the main beam 11, the auxiliary beam 12 and the connecting plate 120 are integrally stamped and formed, are welded with the front floor 4, form two independent cavities, and form nine force transmission paths composed of the two beam side flanging structures 14, the main beam first side 126, the main beam top surface 127, the main beam second side 128, the connecting plate 120, the auxiliary beam first side 129, the auxiliary beam top surface 130 and the auxiliary beam second side 131, which can effectively disperse the impact energy during the collision, greatly improve the anti-deformation ability, thereby improving the safety performance of the vehicle side collision, and reducing the manufacturing and installation difficulty of the first beam body 1, and having high practicability.

[0066] The reinforcing structure is two, and is arranged in the main beam 11 and the auxiliary beam 12 respectively.

[0067] In fact, according to actual conditions, an integrated reinforcing structure can be directly used to strengthen the structural strength of the whole first beam body 1. In the embodiment, the reinforcing structure is arranged in two and is independently installed, which can reduce the overall width of the reinforcing structure, and has high practicability.

[0068] The connecting plate 120 is provided with the through reinforcing rib 112 between the main beam 11 and the auxiliary beam 12.

[0069] Through the arrangement of the through reinforcing rib 112, the connection strength between the main beam 11 and the auxiliary beam 12 can be strengthened, and the practicability is high.

[0070] A floor assembly includes a front floor 4 and the front seat rear mounting beam. The second beam body 2 and the rocker side beam 3 located on both sides of the front floor 4 are also fixedly arranged on the front floor 4.

[0071] The two ends of the first beam body 1 and the second beam body 2 are fixedly connected with the rocker side beam 3.

[0072] The first beam body 1 and the second beam body 2 jointly complete the installation of the seat, increase the support span of the seat on the horizontal plane, and the seat is more stable and has high practicability.

[0073] A vehicle includes a seat and the floor assembly. The seat is installed on the first beam body 1 and the second beam body 2.

[0074] The front row seat rear mounting cross beam, floor assembly and vehicle are described in detail. The description of the specific embodiments is only used to help understand the method of the utility model and its core idea. It should be pointed out that for ordinary skilled persons in the art, without departing from the principles of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A front seat rear mounting cross beam characterized by: The application relates to a front seat rear mounting cross beam. The first cross beam body (1) is provided with a first reinforcing rib (111) at each end, and the length direction of the first reinforcing rib (111) is the same as the length direction of the first cross beam body (1). The first cross beam body (1) is provided with a collapse rib (110) at each end, and the length direction of the collapse rib (110) is perpendicular to the length direction of the first cross beam body (1). The first cross beam body (1) is provided with a cross beam end flanging structure (121) at each end. The cross beam end flanging structure (121) is vertically provided with a second reinforcing rib (122).

2. A rear mounting cross beam for front seats according to claim 1, characterized in that: The first cross beam body (1) is fixedly provided with a reinforcing structure.

3. A rear mounting cross beam for a front row seat according to claim 2, characterized in that: The reinforcing structure is a hot-formed patch plate (13).

4. A rear mounting cross beam for front seats according to claim 1, characterized in that: The first cross beam body (1) comprises a main cross beam (11) and a sub cross beam (12), and a connecting plate (120) is arranged between the main cross beam (11) and the sub cross beam (12), and the main cross beam (11), the sub cross beam (12) and the connecting plate (120) are integrally stamped and formed.

5. A front seat rear mounting cross beam according to claim 4, characterized in that: The outer side of the main cross beam (11) and the sub cross beam (12) is provided with a cross beam side flanging structure (14).

6. A front seat rear mounting cross beam according to claim 4, characterized in that: The connecting plate (120) and the two cross beam side flanging structures (14) are welded with the front floor (4). The reinforcing structure is two, and is arranged in the main cross beam (11) and the sub cross beam (12) respectively. The connecting plate (120) is provided with a through reinforcing rib (112) between the main cross beam (11) and the sub cross beam (12).

7. A rear mounting cross beam for a front row seat according to claim 6, characterized in that: The application relates to a front seat rear mounting cross beam.

8. A rear mounting cross beam for a front seat according to claim 6, characterized in that: The first cross beam body (1) and the second cross beam body (2) are fixedly connected with the rocker side beams (3).

9. A floor assembly characterized by: The application relates to a floor assembly. The seat is mounted on the first cross beam body (1) and the second cross beam body (2).

10. A vehicle characterized by: ​

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