WO2024016512A1 - 一种后地板总成以及车辆 - Google Patents

一种后地板总成以及车辆 Download PDF

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Publication number
WO2024016512A1
WO2024016512A1 PCT/CN2022/128809 CN2022128809W WO2024016512A1 WO 2024016512 A1 WO2024016512 A1 WO 2024016512A1 CN 2022128809 W CN2022128809 W CN 2022128809W WO 2024016512 A1 WO2024016512 A1 WO 2024016512A1
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WO
WIPO (PCT)
Prior art keywords
rear floor
crossbeam
vehicle
assembly
floor
Prior art date
Application number
PCT/CN2022/128809
Other languages
English (en)
French (fr)
Inventor
杨梅
汪双群
侯春生
翟欢
周中彪
Original Assignee
岚图汽车科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 岚图汽车科技有限公司 filed Critical 岚图汽车科技有限公司
Priority to EP22871153.7A priority Critical patent/EP4335730A1/en
Publication of WO2024016512A1 publication Critical patent/WO2024016512A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2027—Floors or bottom sub-units in connection with other superstructure subunits the subunits being rear structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
    • B60N2/015—Attaching seats directly to vehicle chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/087—Luggage compartments

Definitions

  • the present disclosure relates to a rear floor assembly and a vehicle, belonging to the technical field of vehicle body structures.
  • Platform and universal design are mainly to adapt to the situation where the automotive market has changed from large-volume, single market demand to small-volume, multi-variety market demand.
  • Product design is the beginning and foundation of platform and universal design.
  • the rear floor assembly plays an important role in vehicle functions and vehicle performance. Especially when it comes to the installation of seats, the structures of seats of different models are not much different. If different seat installation structures are developed according to different models, the development cycle of the entire vehicle will be longer and the cost will be higher.
  • the present disclosure provides a rear floor assembly and a vehicle, which can solve the technical problem of long vehicle development cycle and high cost to a certain extent.
  • a first aspect of the present disclosure provides a rear floor assembly, including a connected rear floor panel and a rear floor frame; the rear floor frame includes two longitudinal beams arranged along the width direction of the vehicle, and spaced apart along the length direction of the vehicle.
  • the first crossbeam, the second crossbeam, the third crossbeam, the connecting longitudinal beam, the fourth crossbeam and the fifth crossbeam are provided, and the first crossbeam, the second crossbeam, the third crossbeam, the fourth crossbeam and The fifth cross beams are all connected to the longitudinal beams, the third cross beams, the connecting longitudinal beams and the fourth cross beams are connected in sequence and are located on the upper surface of the rear floor panel, and the second cross beams and the fifth cross member are connected to the lower surface of the rear floor panel.
  • a second aspect of the present disclosure provides a vehicle, including a side panel assembly and a rear floor assembly of the first aspect, wherein the third cross member of the rear floor assembly is connected to C of the side panel assembly. column.
  • Figure 1 shows an exploded view of a rear floor assembly in accordance with one or more embodiments of the present disclosure.
  • Figure 2 shows a schematic structural view of the rear floor assembly of Figure 1 with the longitudinal beam removed.
  • FIG. 3 shows an exploded view of FIG. 2 .
  • FIG. 4 shows a schematic structural view of the rear floor assembly of FIG. 1 with the longitudinal beam removed from another perspective.
  • FIG. 5 shows a schematic structural view of the first cross member in the rear floor assembly of FIG. 1 .
  • FIG. 6 shows an exploded view of the third cross member in the rear floor assembly of FIG. 1 .
  • FIG. 7 shows a schematic structural diagram of the longitudinal beam in the rear floor assembly of FIG. 1 .
  • FIG. 8 shows an exploded view of the longitudinal beam in the rear floor assembly of FIG. 1 .
  • FIG. 9 shows an enlarged view of position A in FIG. 8 .
  • FIG. 10 shows an installation structural diagram of a protective beam of a vehicle according to one or more embodiments of the present disclosure.
  • 2000-protective beam 3000-side panel assembly; 4000-rear seat; 5000-protective frame.
  • the length direction of the vehicle is usually called the X direction or longitudinal direction
  • the width direction of the vehicle is called the Y direction or transverse direction
  • the height direction of the vehicle is called the Z direction or vertical direction.
  • a rear floor assembly 1000 including a rear floor panel 100 and a rear floor frame 1100 .
  • the rear floor panel 100 and the rear floor frame 1100 are connected.
  • the rear floor frame 1100 adopts a "two vertical and five horizontal" frame structure, including two longitudinal beams 900 arranged along the width direction of the vehicle, and first cross beams 700, second cross beams 800 and third cross beams 200 arranged at intervals along the length direction of the vehicle.
  • the fourth cross beam 300 and the fifth cross beam 500 the rear floor frame 1100 also includes at least one connecting longitudinal beam 400 .
  • the first crossbeam 700, the second crossbeam 800, the third crossbeam 200, the fourth crossbeam 300 and the fifth crossbeam 500 are all connected to the longitudinal beam 900 to form the main frame.
  • the third crossbeam 200, the connecting longitudinal beam 400 and the fourth crossbeam 300 are connected in sequence. are connected and are located on the upper surface of the rear floor panel 100 to form a rear seat installation structure.
  • the axial length of the connecting longitudinal beam 400 can be selected according to different models; the second cross beam 800 and the fifth cross beam 500 are both connected to the rear floor.
  • the second cross beam 800 functions to strengthen the rear floor panel 100 and install the second row of seats, and the fifth cross beam 500 also functions to strengthen the rear floor panel 100.
  • the rear floor assembly 1000 provided by the present disclosure can meet the installation requirements of second row seats and third row seats by providing the second cross beam 800, the third cross beam 200 and the fourth cross beam 300. 400 can select the axial length of the connecting longitudinal beam 400 according to different models, and improve the dynamic stiffness of the rear floor panel 100 by providing the second cross beam 800 and the fifth cross beam 500 .
  • the rear floor assembly 1000 provided according to one or more embodiments of the present disclosure not only meets the installation functional requirements of different vehicle models, but also meets the performance requirements of different vehicle models for vehicle mode, vehicle bending and torsion, and collision safety, achieving Universal design of rear floor assembly 1000.
  • the first crossbeam 700 of the rear floor frame 1100 is a front crossbeam of the rear floor.
  • the first crossbeam 700 is located at the front end of the rear floor assembly 1000 and is used to support rear seats or second-row seats of MPV models.
  • the first crossbeam 700 is divided into upper and lower parts.
  • the second row of seat slide rail mounting holes are arranged on the first crossbeam 700.
  • a number of support plates are arranged in the crossbeam cavity to improve the front floor modal and seat installation inching stiffness.
  • the first cross member 700 is raised in the Z direction due to the requirement of preventing people in the second row of people from diving, that is, the height of the top surface of the first cross member 700 is higher than the height of the middle area of the rear floor panel 100 .
  • one end of the first cross beam 700 is provided with a missing portion 710.
  • the missing portion 710 is used to install a leg rest assembly or a leg rest replica.
  • the leg rest replica only has the legs of the leg rest assembly.
  • the outer boundary does not have the function of a leg rest.
  • the specific structure of the leg rest assembly can refer to the relevant disclosures in the prior art, and is not limited by this disclosure.
  • the design of the leg rest assembly or the leg rest copy can satisfy the versatility of the vehicle body frame in the high-profile version and the low-profile version; secondly, the legs The leg rest assembly or the leg rest profiling part is filled in the missing part 710, which can provide good support to the seat, and the leg rest assembly or the leg rest profiling part is also a rigid structure, which can make up for the first cross beam 700 to a certain extent.
  • the strength is reduced due to the provision of the missing part 710; thirdly, by providing the missing part 710, the leg rest is built into the body, and the leg rest does not occupy additional space in the passenger compartment, increasing the leg size of the rear passengers.
  • the leg rests are integrated on the seats or directly installed on the front end of the cross beam, in order to maintain the aesthetics, the longitudinal thickness of the carpets in the same row of seats except for the leg rests will be thickened. According to this disclosure In the rear floor assembly 1000 provided by one or more embodiments, since the leg rests are built-in, the operation of longitudinally thickening the carpet can be avoided, thereby reducing the cost of the entire vehicle.
  • the missing portion 710 is formed by shortening the first cross member 700, and the end surface of the first cross member 700 and the rear floor panel 100 form a cavity, thereby forming the missing portion 710; in other embodiments , the first cross beam 700 can also be partially hollowed out to form the missing portion 710 , that is to say, the missing portion 710 is formed by a partial indentation of the first cross beam 700 ; in some embodiments, the first cross beam 700 includes The upper plate and the lower plate can be configured to have a shorter length than the lower plate, so that the lower plate, the end surface of the upper plate and the rear floor panel 100 can form the missing portion 710 .
  • the missing portion 710 can also adopt other structural forms, which are not exhaustive here.
  • a main positioning hole 720 is provided in the middle of the first cross beam 700
  • a middle channel connector 730 is provided on the first cross beam 700
  • the middle channel connector 730 is connected to the main positioning hole 720 .
  • the second crossbeam 800 of the rear floor frame 1100 is the middle crossbeam of the rear floor, located under the middle of the rear floor.
  • the fuel tank mounting bracket and the seat mounting point are arranged on it, and the left and right are connected to the front mounting points of the rear subframe to ensure that it Installation dynamic stiffness.
  • the second crossbeam 800 includes a crossbeam body and joints connected to both ends of the crossbeam body.
  • the crossbeam body can be adjusted to suit different vehicle models. By adjusting the joints at both ends of the crossbeam body, the crossbeam can be universally used.
  • the third beam 200 of the rear floor frame 1100 is the rear seat back beam assembly, which is located at the C-ring of the vehicle, connects the left and right wheel covers, and is connected to the C-pillar cavity and the roof beam to form a closed force transmission path. It plays an irreplaceable and important role in improving the rear suspension installation point dynamic stiffness, vehicle bending and torsional stiffness and modal.
  • the third beam 200 is located under the third row of seats, supporting the thighs of the three rows of human body, and providing mounting points for the seats; in the sedan model, the third beam 200 is located behind the backrest of the second row of seats, providing backrest support and Seat installation.
  • the third cross beam 200 includes a main beam 210 and a first reinforcing plate 220 and a second reinforcing plate 230 connected to both ends of the main beam 210.
  • the two longitudinal beams 900 are respectively connected with the main beam.
  • the two ends of 210 are connected; the first reinforcing plate 220 and the second reinforcing plate 230 are used to connect the C-pillar of the vehicle.
  • the first reinforcing plate 220 and the second reinforcing plate 230 simultaneously connect the longitudinal beam 400, the main beam 210 and the C-pillar inner panel to strengthen the structure of the C-pillar ring.
  • the first reinforcing plate 220 and the second reinforcing plate 230 may adopt an integrated structure or a split structure.
  • the fourth crossbeam 300 of the rear floor frame 1100 is a crossbeam for installing the three rows of seats, providing Y-direction support for the rear suspension spring, and meeting the installation requirements of the three rows of seats and seat belts of the MPV model.
  • the fourth cross beam 300 and the third cross beam 200 are connected through the connecting longitudinal beam 400 to form a stable quadrilateral structure, which meets the stiffness of the seat installation point while improving the floor mode and ensuring It is safe for three rows of people hit by high-speed rear.
  • the connecting longitudinal beam 400 is located between the third beam 200 and the fourth beam 300, and the number of the connecting longitudinal beam 400 is determined according to the actual requirements of seat installation.
  • the fifth cross member 500 of the rear floor frame 1100 is a rear floor rear cross member.
  • the long rear overhang of the vehicle model can achieve superior trunk volume, but it also places higher requirements on the stiffness and modality of the rear floor.
  • the arrangement of the fifth cross member 500 can take into account the trunk volume and the stiffness and modality of the rear floor.
  • a fifth crossbeam 500 is provided below the rear load floor.
  • the fifth crossbeam 500 is provided below the spare tire compartment area and is connected to the rear mounting point of the rear subframe. At the same time, two beams are located below the rear load floor.
  • the small longitudinal beam 510 connects the rear floor beam (fifth beam 500) and the rear apron assembly 600 to ensure the stiffness of the rear load-bearing floor and the installation inching stiffness of the rear charger and air tank.
  • the longitudinal beam 900 of the rear floor frame 1100 includes a front section 910, a middle section 920 and a rear section 930 connected in sequence; the first cross beam 700 is connected to the front section 910, and the fifth cross beam 500 is connected to the rear section 930.
  • the front section 910 and the rear section 930 of the longitudinal beam 900 are adapted to different wheelbases and rear overhang lengths of different platform models by adjusting the overlap and length of the parts.
  • the middle section 920 of the longitudinal beam 900 except for some parts that overlap with the wheel housing.
  • At least one reinforcing plate 940 is provided inside at least one of the front section 910, the middle section 920, and the rear section 930.
  • the position of the reinforcing plate 940 is determined according to the position of each installation point.
  • additional reinforcing plates can also be provided for the cavity of the longitudinal beam 900 with a relatively long axial length.
  • the middle section 920 of the longitudinal beam 900 includes an upper plate 921 and a lower plate 922, wherein the upper plate 921 is a thermoformed plate; the lower plate 922 is a variable thickness thermoformed plate.
  • the lower plate 922 adopts four sections of flexible rolled steel plates with different thicknesses.
  • the upper plate 921 and the lower plate 922 are welded and connected.
  • the lower plate 922 of the rear longitudinal beam 900 adopts the method of variable material thickness thermoforming to meet both the lightweight requirements and the performance requirements of the entire vehicle.
  • the middle part of the rear floor panel 100 includes an upwardly protruding upper portion 110, and the cavity below the upper portion 110 is used to place the drive motor; the third cross member 200, The connecting longitudinal beam 400 and the fourth cross beam 300 are both connected to the upper surface of the upper convex portion 110 .
  • This structure is suitable for MPV models, that is, the front section 910 of the rear floor assembly 1000 is made horizontal to adapt to the X-direction adjustment of the second-row seat slide rails, and the rear section is raised to meet the rear motor arrangement.
  • the middle part of the rear floor assembly 1000 is the upper convex portion 110 that protrudes upward, a cavity 120 is formed below the upper convex portion 110 , and the driving motor is arranged in the cavity 120 below the upper convex portion 110 assembly. , on the one hand, it provides installation space for the drive motor, and on the other hand, it isolates the drive motor outside the passenger compartment to avoid the noise of the drive motor from affecting the occupants in the passenger compartment.
  • the third cross beam 200 and the fourth cross beam 300 are connected to the upper convex portion 110, the rear seats are arranged on the upper convex portion 110, so there is no need to provide a support structure to support the rear seats, but directly use the upper convex portion.
  • the part 110 supports the rear seats so that the height of the rear seats can meet the riding requirements. Therefore, the rear floor assembly 1000 can dispose the drive motor below the rear floor assembly 1000 , that is, adding a drive motor to the rear end of the vehicle without affecting the passenger compartment space.
  • the front portion of the rear floor panel 100 includes an upwardly raised anti-dive structure. This structure is suitable for car models, that is, the front section of the rear floor panel 100 is raised to meet the requirement of preventing human beings from submerging in the second row.
  • the rear floor panel 100 is divided into a passenger compartment floor 130 and a trunk floor 140 due to its long size, and the third cross member 200 , the connecting longitudinal beam 400 and the fourth cross member 300 are all connected.
  • the trunk floor 140 is connected to the rear end of the passenger cabin floor 130, and the trunk floor 140 is at least partially recessed downward to form a storage cavity; the fifth beam 500 is connected to the lower surface of the storage cavity.
  • the rear end of the passenger compartment floor 130 is connected to the front end of the trunk floor 140 , and the trunk floor 140 is at least partially recessed downward to form a storage cavity 150 .
  • the rear floor assembly 1000 adopts a split structure to facilitate manufacturing, processing and installation. Especially when the rear floor assembly 1000 is applied to a seven-seater vehicle, since the overall length of the seven-seater vehicle is long, the rear floor assembly 1000 is also relatively long as a whole, so it is more suitable to adopt a split structure.
  • a seven-seater vehicle is generally provided with three rows of seats. The rear cross member of the second row of seats is set at the front end of the passenger cabin floor 130.
  • the front end of the passenger cabin floor 130 is flat as a whole, allowing the second row of seats to move along the X direction of the vehicle. Horizontal movement adjustment.
  • the third cross member 200 and the fourth cross member 300 may serve as the front cross member and the rear cross member of the third row of seats of a seven-seater vehicle.
  • At least part of the structure of the trunk floor 140 may be configured as a downwardly concave structure, and the downwardly concave structure of the trunk floor 140 is the storage cavity 150 .
  • 150 is generally used for storage, such as placing spare tires, tire repair tools, inflation tools, etc.
  • the rear end of the passenger cabin floor 130 includes a first raised portion 111
  • the front end of the luggage compartment floor 140 includes a second raised portion 112
  • a third portion of the passenger cabin floor 130 includes a second raised portion 112 .
  • An upper convex portion 111 is connected with the second upper convex portion 112 of the trunk floor 140 to form the upper convex portion 110 of the rear floor assembly 1000 .
  • the upper convex portion 110 in the middle of the rear floor assembly 1000 is formed by connecting the first upper convex portion 111 at the rear end of the passenger cabin floor 130 and the second upper convex portion 112 at the front end of the trunk floor 140 .
  • the front end is relatively flat and can be used to install the rear cross member of the front seat to realize the movement and adjustment of the front seat along the X direction of the vehicle.
  • the rear end of the trunk floor 140 is a downwardly recessed storage cavity 150 .
  • the fourth cross member 300 is disposed at the connection between the first convex portion 111 and the second convex portion 112 , that is, between the rear end of the passenger cabin floor 130 and the trunk floor 140 At the front end connection, the rear end of the passenger cabin floor 130 is generally set above the trunk floor 140, and the fourth beam 300 is connected at the connection between the rear end of the passenger cabin floor 130 and the front end of the trunk floor 140.
  • the fourth cross member 300 , the passenger compartment floor 130 and the trunk floor 140 are welded together to ensure the stability of the connection.
  • the fourth cross member 300 , the passenger compartment floor 130 and the trunk floor 140 can also be connected by bolt connection, snap connection, etc., and the present disclosure is not limited to this.
  • the front section of the trunk floor 140 has the same molding surface for MPV models and sedan models, but the rear section boundary of the trunk floor 140 changes with the change of the rear overhang length of different models.
  • the rear floor panels of the two models The X-direction and Y-direction coordinates of the main positioning hole 720 of the 100 assembly are consistent, thereby maximizing the versatility of molds, tooling and inspection tools.
  • the rear floor assembly 1000 provided according to one or more embodiments of the present disclosure can improve the performance of the entire vehicle and achieve maximum versatility of the rear floor assembly on the premise of meeting the installation functional requirements of different vehicle models. This reduces development costs, shortens the development cycle, and saves investment in production equipment.
  • a vehicle including a side panel assembly 3000 and the rear floor assembly 1000 of the first aspect.
  • the third cross member 200 of the rear floor assembly 1000 is connected to the side panel assembly.
  • the C-pillar is 3000mm thick, forming a C-pillar ring to improve body rigidity.
  • the vehicle further includes a protective beam 2000 disposed between the trunk and the passenger compartment.
  • the bottom of the protective beam 2000 is connected to the fourth cross member 300, and the top of the protective beam 2000 is connected to the side panel assembly 3000.
  • the entire protective beam 2000 has an axisymmetric structure such as V-shaped, U-shaped, H-shaped or W-shaped, and the specific shape is not limited in this disclosure.
  • the protective beam 2000 By arranging the protective beam 2000, the rear floor cross beam, the protective beam 2000 and the side panel assembly 3000 are connected to form a protective frame. Since the rear floor cross member is disposed under the rear portion of the rear seat 4000, the protective beam 2000 is disposed between the trunk and the passenger compartment, so that the protective frame 5000 is disposed on the back of the rear seat 4000 to protect the entire rear seat 4000. Compared with the steel plate on the back of the rear seat in the related art, the protective beam 2000 has better impact resistance and lower mass, which reduces the overall weight of the car, thereby making it easier for the car to appear. During emergency braking or impact, it prevents items in the luggage compartment from impacting the rear seats, preventing occupants from being injured and protecting their personal safety.
  • the present disclosure has the following beneficial effects or advantages:
  • the rear floor assembly 1000 proposed in this disclosure, the middle section 920 of the longitudinal beam 900, the third beam 200, the fourth beam 300 and the fifth beam 500 can all be used interchangeably between MPV models and sedan models.
  • the main features of other assemblies are The positioning holes are also consistent, thus achieving universality, shortening the development cycle, reducing development costs, and saving investment in tooling fixtures and production equipment. ;
  • the rear floor assembly 1000 proposed in this disclosure adopts a skeleton layout of two longitudinal beams 900 and five cross beams, which meets the rigidity of key installation points, improves the bending and torsional stiffness and modal of the entire vehicle, and ensures riding comfort. , and at the same time ensure the safety of the three rows of human bodies hit by the vehicle at high speed.
  • the rear floor assembly 1000 proposed in this disclosure achieves lightweight of the rear vehicle body by using the lower plate 922 of the longitudinal beam 900 that is thermoformed with variable thickness.

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  • Mechanical Engineering (AREA)
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Abstract

一种后地板总成（1000），包括后地板面板（100）、纵梁（900）、第一横梁（700）、第二横梁（800）、第三横梁（200）、第四横梁（300）和第五横梁（500），以及连接纵梁（400），第三横梁（200）、连接纵梁（400）和第四横梁（300）依次连接、且均位于后地板面板（100）的上表面，形成后排座椅安装结构，第二横梁（800）和第五横梁（500）均连接于后地板面板（100）的下表面。该后地板总成（1000）不仅满足不同车型的安装功能需求，同时也满足不同车型对整车模态、整车弯扭和碰撞安全的性能需求，还解决了目前整车开发周期长成本高的技术问题。另外，还涉及一种搭载该后地板总成的车辆。

Description

一种后地板总成以及车辆
相关申请的交叉引用
本公开要求于2022年7月20日提交、申请号为202210863662.6且名称为“一种后地板总成以及车辆”的中国专利申请的优先权，其全部内容通过引用合并于此。
技术领域
本公开涉及一种后地板总成以及车辆，属于车身结构技术领域。
背景技术
随着汽车行业发展，汽车企业为了缩短开发周期，降低开发成本，汽车开发从单一车型开发逐渐发展到平台开发。平台化和通用化设计主要是适应汽车市场由大批量、单一化的市场需求转变为小批量、多品种的市场需求的形势，而产品设计是平台化、通用化的开端和基础。
后地板总成作为汽车平台化一个重要组成部分，在整车功能和整车性能方面都扮演了重要角色。特别是涉及到座椅的安装，不同车型的座椅的结构相差不大，若根据不同的车型开发不同的座椅安装结构会导致整车的开发周期变长，成本变高。
发明内容
本公开提供一种后地板总成以及车辆，能够在一定程度上解决整车开发周期长成本高的技术问题。
本公开的第一方面，提供了一种后地板总成，包括连接的后地板面板和后地板骨架；所述后地板骨架包括两根沿车辆宽度方向设置的纵梁，以及沿车辆长度方向间隔设置的第一横梁、第二横梁、第三横梁、连接纵梁、第四横梁和第五横梁，所述第一横梁、所述第二横梁、所述第三横梁、所述第四横梁和所述第五横梁均连接于所述纵梁，所述第三横梁、所述连接纵梁和所述第四横梁依次连接、且均位于所述后地板面板的上表面，所述第二横梁和所述第五横梁均连接于所述后地板面板的下表面。
本公开的第二方面，提供一种车辆，包括侧围总成和上述第一方面的后地板总成，所述后地板总成的所述第三横梁连接于所述侧围总成的C柱。
附图说明
图1示出了依据本公开的一个或多个实施方式的后地板总成的爆炸图。
图2示出了图1的后地板总成拆除纵梁后的结构示意图。
图3示出了图2的爆炸图。
图4示出了图1的后地板总成拆除纵梁后的在另一视角下的结构示意图。
图5示出了图1的后地板总成中第一横梁的结构示意图。
图6示出了图1的后地板总成中第三横梁的爆炸图。
图7示出了图1的后地板总成中纵梁的结构示意图。
图8示出了图1的后地板总成中纵梁的爆炸图。
图9示出了图8的A处放大图。
图10示出了依据本公开的一个或多个实施方式的车辆的防护梁的安装结构图。
附图标记说明：1000-后地板总成；1100-后地板骨架；100-后地板面板；110-上凸部；111-第一上凸分部；112-第二上凸分部；120-空腔；130-乘员舱地板；140-行李箱地板；150-置物腔；160-阶梯结构；200-第三横梁，210-主梁，220-第一加强板，230-第二加强板；300-第四横梁；400-连接纵梁；500-第五横梁；510-小纵梁；600-后围板总成；700-第一横梁，710-缺部，720-主定位孔，730-中通道连接件；800-第二横梁；900-纵梁，910-前段，920-中段，921-上板，922-下板，930-后段；940-加强板。
2000-防护梁；3000-侧围总成；4000-后座椅；5000-防护框架。
具体实施方式
本领域中，通常将车辆长度方向称为X向或纵向，车辆宽度方向称为Y向或横向，车辆高度方向称为Z向或垂向，下文中相关的方位表述的释义均可参考上述内容。
如图1至图4所示，在本公开的第一方面，提供一种后地板总成1000，包括后地板面板100和后地板骨架1100，后地板面板100和后地板骨架1100相连接。后地板骨架1100采用“两纵五横”的框架结构，包括两根沿车辆宽度方向设置的纵梁900，以及沿车辆长度方向间隔设置的第一横梁700、第二横梁800、第三横梁200、第四横梁300和第五横梁500，后地板骨架1100还包括至少一根连接纵梁400。第一横梁700、第二横梁800、第三横梁200、第四横梁300和第五横梁500均连接于纵梁900，形成主体框架，第三横梁200、连接纵梁400和第四横梁300依次连接、且均位于后地板面板100的上表面，形成后排座椅安装结构，可根据不同的车型选择连接纵梁400的轴向长度；第二横梁800和第五横梁500均连接于后地板面板100的下表面，其中第二横梁800起到强化后地板面板100和安装二排座椅的作用，第五横梁500同样起到强化后地板面板100的作用。
由此，本公开提供的后地板总成1000，通过设置第二横梁800、第三横梁200和第四横梁300，能够满足二排座椅和三排座椅的安装需求，通过设置连接纵梁400可根据不同的车型选择连接纵梁400的轴向长度，通过设置第 二横梁800和第五横梁500提高后地板面板100的动刚度。依据本公开一个或多个实施方式提供的后地板总成1000，不仅满足不同车型的安装功能需求，同时也满足不同车型对整车模态、整车弯扭和碰撞安全的性能需求，实现了后地板总成1000的通用化设计。
后地板骨架1100的第一横梁700为后地板前横梁，第一横梁700位于该后地板总成1000的前端，用于承托后排座椅或者MPV车型的二排座椅。第一横梁700分为上下两部分，其上布置二排座椅滑轨安装孔，横梁腔体内布置若干撑板，提升前地板模态和座椅安装点动刚度。在某些实施例中，该第一横梁700由于二排人体防下潜需求，Z向抬高，即第一横梁700的顶面的高度高于后地板面板100的中部区域的高度。
参见图5，在一些实施例中，第一横梁700的其中一端设置有缺部710，缺部710用于安装腿托组件或者腿托仿形件，腿托仿形件仅具有腿托组件的外部边界，但不具有腿托的功能，腿托组件的具体结构可以参照现有技术的相关公开，本公开不做限制。一方面，由于同一车辆通常设置有低配版和高配版，通过设计该腿托组件或者腿托仿形件能够满足车辆的车身骨架在高配版和低配版的通用性；第二方面，腿托组件或者腿托仿形件填充于该缺部710中，能够对座椅起到良好的支撑，并且腿托组件或者腿托仿形件同样为刚性结构，能够一定程度上弥补第一横梁700因设置缺部710导致的强度的降低；第三方面，通过设置该缺部710，使得腿托内置于车身中，腿托不会额外占用乘员舱的空间，增大了后排乘客的腿部空间，提高了乘坐舒适性。相比于现有技术中将腿托集成于座椅上、或者直接安装在横梁的前端面上，为保持美观性会将同排座椅除腿托其它位置地毯纵向厚度加厚，依据本公开一个或多个实施方式提供的后地板总成1000，由于腿托内置，则可避免地毯纵向厚度加厚的操作，降低了整车成本。
在一个或多个实施方式中，该缺部710是通过将第一横梁700缩短，第一横梁700的端面与后地板面板100形成一个空腔，从而构成该缺部710；在另一些实施例中，也可以将第一横梁700的局部挖空，形成该缺部710，也就是说，缺部710是第一横梁700局部内凹形成的；在又一些实施例中，第一横梁700包括上板和下板，可以通过将上板设置为长度相对于下板更短，则下板、上板的端面以及后地板面板100可形成该缺部710。该缺部710还可以采用其他结构形式，此处不做穷举。
在一些实施例中，参见图5，第一横梁700的中部设有主定位孔720，第一横梁700设有中通道连接件730，中通道连接件730连接于主定位孔720中。通过设置独立的中通道连接件730，通过更改该中通道连接件730的型面即可适配不同配置的前地板，从而使得对于两种型面差异大的车型，第一横梁700的主定位孔720仍可以保持一致，实现夹具和运输设备的通用，从而减少设备投资。
参见图1，后地板骨架1100的第二横梁800为后地板中横梁，位于后地板中部下方，其上布置了油箱安装支架和座椅安装点，左右连接后副车架前安装点，保证其安装动刚度。在一个或多个实施方式中，第二横梁800包括横梁本体和连接于横梁本体两端的接头，横梁本体可以适配不同车型调整位置，通过调整横梁本体两端的接头实现横梁通用。
后地板骨架1100的第三横梁200为后排座椅靠背横梁总成，位于整车C环位置，连接左右轮罩，并与C柱腔体和顶盖横梁连接，形成封闭式传力路径，对提升后悬架安装点动刚度、整车弯扭刚度和模态起到了不可替代的重要作用。在MPV车型中，第三横梁200位于三排座椅下方，支撑三排人体大腿，为座椅提供安装点；在轿车车型中，第三横梁200位于二排座椅靠背后，提供靠背支撑和座椅安装。
在一个或多个实施方式中，参见图6，第三横梁200包括主梁210以及连接于主梁210两端的第一加强板220和第二加强板230，两根纵梁900分别与主梁210的两端连接；第一加强板220和第二加强板230用于连接车辆的C柱。在一些实施例中，第一加强板220和第二加强板230同时连接纵梁400、主梁210和C柱内板，强化C柱环的结构。考虑到加工工艺性，第一加强板220和第二加强板230可以采用一体式结构或者分体式结构。
后地板骨架1100的第四横梁300为三排座椅安装横梁，为后悬架弹簧提供Y向支撑，同时满足MPV车型三排座椅和安全带安装需求。在一个或多个实施方式中，参见图4，第四横梁300与第三横梁200通过连接纵梁400连接，形成稳定的四边形结构，满足座椅安装点刚度的同时，提升地板模态，保证高速后碰下的三排人体安全。连接纵梁400位于第三横梁200和第四横梁300之间，连接纵梁400的数量根据座椅安装实际需求而定。
后地板骨架1100的第五横梁500为后地板后横梁。车型后悬尺寸长能实现优越的后备箱容积，但同时也对后地板刚度和模态提出了更高要求。该第五横梁500的设置则能够兼顾后备箱容积以及后地板刚度和模态。在一个或多个实施方式中，后承载地板下方设置第五横梁500，第五横梁500设于备胎舱区域的下方，连接后副车架后安装点，同时通过两根位于后承载地板下方的小纵梁510，连接后地板后横梁(第五横梁500)与后围板总成600，保证后承载地板刚度，以及后充电机和空气罐的安装点动刚度。
参见图7和图8，后地板骨架1100的纵梁900包括依次连接的前段910、中段920和后段930；第一横梁700连接于前段910，第五横梁500连接于后段930。纵梁900前段910和后段930通过调整零件搭接和长度，分别适配不同平台车型的不同轴距和不同后悬长度，而纵梁900的中段920除与轮罩搭接的部分零件外，可最大限度的实现通用，包括纵梁900中段920上的后副车架、后悬弹簧和后排座椅的安装点的结构，均可实现通用化。在一个或多个实施方式中，参见图9，前段910、中段920、后段930的至少一个的内部 设有至少一个加强板940，该加强板940的位置根据各个安装点的位置而定，此外，对于轴向长度比较长的纵梁900空腔，也可额外设置加强板。
在一个或多个实施方式中，参见图8，纵梁900的中段920包括上板921和下板922，其中上板921为热成型板；下板922为变料厚热成型板。在一个或多个实施方式中，下板922采用4段不等料厚柔性轧制钢板。上板921和下板922拼焊连接，其中后纵梁900下板922采用变料厚热成型的方式，同时满足整车轻量化需求和整车性能需求。
在一个或多个实施方式中，参见图3和图4，后地板面板100中部包括向上凸起的上凸部110，上凸部110的下方空腔用于放置驱动电机；第三横梁200、连接纵梁400和第四横梁300均连接于上凸部110的上表面。此种结构适应于MPV车型，即后地板总成1000前段910为适应二排座椅滑轨X向调节量而做成水平，后部抬高，满足后电机布置。
由于后地板总成1000的中部为向上凸起的上凸部110，从而在上凸部110的下方会形成空腔120，将驱动电机设置在上凸部110总成的下方的空腔120内，一方面，为驱动电机提供了安装空间，另一方面，将驱动电机隔离在乘员舱的外部，避免驱动电机的噪音对乘员舱内的乘员造成影响。同时，由于第三横梁200以及第四横梁300连接于上凸部110，将后排座椅设置在上凸部110，从而不用设置支撑结构对后排座椅进行支撑，而是直接采用上凸部110对后排座椅进行支撑，以使后排座椅的高度能够满足乘坐要求。因此，后地板总成1000能够将驱动电机设置在后地板总成1000的下方，即在车辆的后端增设驱动电机，而不影响乘员舱空间。
在一个或多个实施方式中，后地板面板100前部包括向上凸起的防下潜结构。此种结构适应于轿车车型，即后地板面板100的前段抬高，满足二排人体防下潜需求。
在一个或多个实施方式中，参见图4，后地板面板100由于尺寸较长，分为乘员舱地板130以及行李箱地板140，第三横梁200、连接纵梁400和第四横梁300均连接于乘员舱地板130的上表面；行李箱地板140连接于乘员舱地板130的后端，行李箱地板140至少部分向下凹陷形成置物腔；第五横梁500连接于置物腔的下表面。
参见图4，乘员舱地板130的后端与行李箱地板140的前端连接，行李箱地板140至少部分向下凹陷形成置物腔150。后地板总成1000采用分体式结构，以便于进行制造加工和安装。特别是将后地板总成1000应用到七座车辆中，由于七座车辆的整体长度较长，而导致后地板总成1000整体也偏长，更宜采用分体式结构。七座车辆一般设置有三排座椅，其中的第二排座椅的后横梁设置在乘员舱地板130的前端，乘员舱地板130的前端整体平整，可以实现第二座椅沿车辆的X方向进行水平移动调整。第三横梁200和第四横梁300可作为七座车辆的第三排座椅的前横梁和后横梁。
在一个或多个实施方式中，由于车辆的整体结构的特点，行李箱地板140的至少部分结构可以设置为向下凹陷的结构，行李箱地板140向下凹陷的结构为置物腔150，置物腔150一般用于储物，比如放置备胎、补胎工具、充气工具等之类的物品。
在一个或多个实施方式中，参见图4，乘员舱地板130的后端包括第一上凸分部111，行李箱地板140的前端包括第二上凸分部112，乘员舱地板130的第一上凸分部111与行李箱地板140的第二上凸分部112连接构成后地板总成1000的上凸部110。后地板总成1000的中部的上凸部110由乘员舱地板130的后端的第一上凸分部111与行李箱地板140的前端的第二上凸分部112连接构成，乘员舱地板130的前端相对平整，可用于安装前排座椅的后横梁，实现前排座椅沿车辆的X方向的移动调整，行李箱地板140的后端为向下凹陷的置物腔150。
在一个或多个实施方式中，第四横梁300设置在第一上凸分部111与第二上凸分部112的连接处，即，在乘员舱地板130的后端与行李箱地板140的前端的连接处，一般将乘员舱地板130的后端设置在行李箱地板140的上方，第四横梁300连接在乘员舱地板130的后端与行李箱地板140的前端的连接处，以此结构可以为后排座椅提供更好的支撑，提高后地板总成1000的整体结构稳定性。
在一些实施方式中，第四横梁300、乘员舱地板130以及行李箱地板140焊接在一起，以保证连接的稳定性，三者共焊点，减少焊点数量，减少焊接工序。在一个或多个实施方式中，第四横梁300、乘员舱地板130以及行李箱地板140也可以采用螺栓连接、卡扣连接等方式进行连接，本公开对此不作限制。
为了实现零件通用性，行李箱地板140的前段针对于MPV车型和轿车车型做成型面一致，只是行李箱地板140的后段边界随不同车型后悬长度变化而变化，同时两种车型后地板面板100总成的主定位孔720的X向和Y向坐标一致，从而实现模具、工装和检具最大化通用。
由此，根据本公开的一个或多个实施方式提供的后地板总成1000，在满足不同车型安装功能需求的前提下，能够提升整车性能，并实现后地板总成的最大化的通用，从而降低开发成本，缩短开发周期，节省生产设备投资。
在本公开的第二方面，提供一种车辆，包括侧围总成3000和上述第一方面的后地板总成1000，参见图10，后地板总成1000的第三横梁200连接于侧围总成3000的C柱，形成C柱环，提高车身刚度。
参见图10在一些实施例中，车辆还包括设置于行李箱与乘员舱之间的防护梁2000，防护梁2000的底部与第四横梁300连接，防护梁2000的顶部连接于侧围总成3000。防护梁2000的整体呈V型、U型、H型或W型等轴对称结构，具体形状本公开不做限制。
通过设置该防护梁2000，使后地板横梁、防护梁2000以及侧围总成3000连接形成防护框架。由于后地板横梁设置在后座椅4000的后部的下方，防护梁2000设置在行李箱与乘员舱之间，从而使防护框架5000设置在后座椅4000的背部，以对整个后座椅4000的背部进行保护，相较于相关技术中的后座椅的背部的钢板，防护梁2000具有更好的抗冲击能力，并且具有更低的质量，降低了汽车的整车重量，从而在汽车出现紧急制动或者冲击时，阻挡行李舱的物品冲击后座椅，避免乘员受到伤害，保护乘员的人身安全。
根据本公开的一个或多个实施方式提供的后地板总成，本公开具有以下有益效果或者优点：
1)本公开提出的后地板总成1000，纵梁900的中段920、第三横梁200、第四横梁300和第五横梁500均可以实现MPV车型和轿车车型的相互通用，其他总成的主要定位孔也保持一致，从而实现了通用化，缩短开发周期，降低开发成本，节省了工装夹具和生产设备投资。；
2)本公开提出的后地板总成1000采用两根纵梁900加五根横梁的骨架布局方式，满足关重点的安装点刚强度，提升了整车弯扭刚度和模态，保证乘坐舒适性，同时保证在高速后碰下的三排人体安全。
3)本公开提出的后地板总成1000，通过采用变料厚热成型的纵梁900下板922的方式，实现后车体轻量化。
尽管已描述了本公开的优选实施例，但本领域内的普通技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开范围的所有变更和修改。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (10)

  1. 一种后地板总成，包括连接的后地板面板和后地板骨架；所述后地板骨架包括两根沿车辆宽度方向设置的纵梁，以及沿车辆长度方向间隔设置的第一横梁、第二横梁、第三横梁、连接纵梁、第四横梁和第五横梁，所述第一横梁、所述第二横梁、所述第三横梁、所述第四横梁和所述第五横梁均连接于所述纵梁，所述第三横梁、所述连接纵梁和所述第四横梁依次连接、且均位于所述后地板面板的上表面，所述第二横梁和所述第五横梁均连接于所述后地板面板的下表面。
  2. 如权利要求1所述的后地板总成，其中：所述后地板面板中部包括向上凸起的上凸部，所述上凸部的下方空腔用于放置驱动电机；所述第三横梁、所述连接纵梁和第四横梁均连接于所述上凸部的上表面；
    或者，所述后地板面板前部包括向上凸起的防下潜结构。
  3. 如权利要求2所述的后地板总成，其中：所述后地板面板包括：
    乘员舱地板；所述第三横梁、所述连接纵梁和所述第四横梁均连接于所述乘员舱地板的上表面；
    行李箱地板，连接于所述乘员舱地板的后端，所述行李箱地板至少部分向下凹陷形成置物腔；所述第五横梁连接于所述置物腔的下表面。
  4. 如权利要求3所述的后地板总成，其中：所述第四横梁、所述乘员舱地板以及所述行李箱地板焊接在一起。
  5. 如权利要求1-4中任一项所述的后地板总成，其中：所述第三横梁包括主梁以及连接于所述主梁两端的第一加强板和第二加强板，两根所述纵梁分别与所述主梁的两端连接；所述第一加强板和所述第二加强板用于连接车辆的C柱。
  6. 如权利要求1-4中任一项所述的后地板总成，其中：所述第一横梁的其中一端设置有缺部，所述缺部中设有腿托组件或者腿托仿形件；所述第一横梁的中部设有主定位孔，所述第一横梁设有中通道连接件，所述中通道连接件连接于所述主定位孔中。
  7. 如权利要求1-4中任一项所述的后地板总成，其中：所述纵梁包括依次连接的前段、中段和后段；所述第一横梁连接于所述前段，所述第五横梁连接于所述后段；所述前段、所述中段、所述后段的至少一个的内部设有至少一个加强板。
  8. 如权利要求7所述的后地板总成，其中：所述中段包括上板和下板；所述上板为热成型板；所述下板为变料厚热成型板。
  9. 一种车辆，包括侧围总成和权利要求1-8中任一项所述的后地板总成，所述后地板总成的所述第三横梁连接于所述侧围总成的C柱。
  10. 如权利要求9所述的车辆，其中：所述车辆还包括设置于行李箱与乘员舱之间的防护梁，所述防护梁的底部与所述第四横梁连接，所述防护梁的顶部连接于所述侧围总成。
PCT/CN2022/128809 2022-07-20 2022-10-31 一种后地板总成以及车辆 WO2024016512A1 (zh)

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