Threshold, threshold rear longitudinal beam assembly and vehicle

Abstract

The utility model discloses a threshold, a threshold rear longitudinal beam assembly and a vehicle, relates to the technical field of automobile bodies, and aims to improve the strength of the threshold. The doorsill comprises a doorsill inner plate, a doorsill outer plate and a reinforcing piece. The threshold outer plate is connected with the threshold inner plate, and a containing space is formed between the threshold inner plate and the threshold outer plate. And the reinforcer is arranged in the accommodating space and is used for absorbing energy and damping. The doorsill is high in structural strength, and stable connection between the doorsill and the rear longitudinal beam can be guaranteed.

Description

Technical Field

[0001] This application relates to the field of automotive body technology, and more particularly to a door sill, a door sill rear longitudinal beam assembly, and a vehicle. Background Technology

[0002] To promote the rapid development of global automotive safety technology, reduce the fatality rate in road traffic accidents, and mitigate the potential risks posed by vehicle structural failure in collisions, the new version of the European New Car Assessment Programme (E-NCAP) no longer solely assesses dummy injury values ​​but also incorporates post-collision structural failure into its evaluation system. In particular, side pole impact tests of pure electric vehicles are highly susceptible to structural failure due to the small contact area between the vehicle and the barrier and the limited side energy absorption space.

[0003] In existing technology, one end of the vehicle door sill is connected to the rear longitudinal beam. However, the existing door sills have low structural strength and are prone to deformation after a collision. This deformation can easily lead to the failure of the connection between the door sill and the rear longitudinal beam, causing safety issues. Utility Model Content

[0004] The purpose of this application is to provide a door sill, a rear longitudinal beam assembly for the door sill, and a vehicle, with the aim of improving door sill strength.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] In a first aspect, embodiments of this application provide a door sill. The door sill includes an inner door sill plate, an outer door sill plate, and a reinforcing member. The outer door sill plate is connected to the inner door sill plate, and an accommodating space is formed between the inner door sill plate and the outer door sill plate. The reinforcing member is disposed within the accommodating space and is used for energy absorption and shock absorption.

[0007] The door sill provided in this application embodiment has a reinforcing member between the inner and outer panels. When the door sill of a vehicle is impacted, the reinforcing member can play a good role in absorbing energy and damping shocks, thereby making the overall energy absorption and damping effect of the door sill better and preventing the door sill from deforming, thus ensuring the connection between the door sill and the rear longitudinal beam.

[0008] In some embodiments, the reinforcement includes a reinforcing plate and a connecting structure, the connecting structure being connected to the reinforcing plate and to the inner sill plate.

[0009] According to the above-mentioned technical means, the reinforcing member can use the reinforcing plate as an energy absorption device, and the reinforcing plate can be fixed to the inner sill plate through the connecting structure to reduce the impact force on the inner sill plate and the rear longitudinal beam connecting structure when dealing with side column collision conditions.

[0010] In some embodiments, the number of connection structures is multiple. Multiple connection structures are spaced apart along the extending direction of the reinforcing plate.

[0011] The purpose of setting up multiple connecting mechanisms according to the above technical means is to enhance the stability of the component connection, ensure that the reinforcing plate is firmly fixed to the vehicle body, and maximize the absorption of the energy of the side pillar collision by the reinforcing plate.

[0012] In some embodiments, the connection structure includes a first connector and a second connector. The first connector is connected to the inner sill plate. The second connector passes through the first connector and is threadedly connected to a reinforcing plate.

[0013] According to the above-mentioned technical means, the second connector can connect the first connector and the reinforcing plate to each other, thereby connecting the reinforcing plate and the inner sill plate.

[0014] In some embodiments, the connection structure further includes a third connector. The third connector passes through the first connector and is threadedly connected to the inner sill plate.

[0015] According to the above-mentioned technical means, the third connector can connect the first connector and the inner door sill plate, ensuring that the reinforcing plate is firmly fixed to the vehicle body, so that the reinforcing plate can absorb the energy of the side pole impact to the maximum extent.

[0016] In some embodiments, the first connector is welded to the inner sill plate.

[0017] According to the above-mentioned technical means, the first connector is welded to the inner sill plate, which enhances the stability of the connection between the inner sill plate and the first connector.

[0018] Secondly, this application provides a sill rear longitudinal beam assembly, which includes the aforementioned sill.

[0019] Since the sill rear longitudinal beam assembly provided in this application embodiment includes any of the sills in the first aspect, it can solve the same technical problems as the above-mentioned sills and achieve the same technical effects, it will not be described again here.

[0020] In some embodiments, one end of the sill inner plate has a plurality of first connecting portions, and the sill rear longitudinal beam assembly further includes a rear longitudinal beam having a plurality of second connecting portions, the plurality of second connecting portions being connected to a plurality of first connecting portions respectively.

[0021] In some embodiments, a portion of the first connecting part and a portion of the second connecting part are welded together. The rear longitudinal beam assembly of the sill also includes a plurality of fourth connectors, through which another portion of the first connecting part and another portion of the second connecting part are connected respectively.

[0022] Thirdly, this application also provides a vehicle that includes the aforementioned sill rear longitudinal beam assembly.

[0023] Since the sill rear longitudinal beam assembly provided in this application includes any of the sill rear longitudinal beam assemblies in the second aspect, it can solve the same technical problems as the above-mentioned sill rear longitudinal beam assembly and achieve the same technical effects, it will not be described again here. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A structural schematic diagram of a sill rear longitudinal beam assembly provided in an embodiment of this application;

[0026] Figure 2 for Figure 1 The exploded view of the rear longitudinal beam assembly shown.

[0027] Figure 3 This is a schematic diagram of the structure of a reinforcing member provided in an embodiment of this application;

[0028] Figure 4 One of the partial structural schematic diagrams of a sill rear longitudinal beam assembly provided in an embodiment of this application;

[0029] Figure 5 This is a second partial structural schematic diagram of a sill rear longitudinal beam assembly provided in an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the deformation structure of the longitudinal beam assembly behind the threshold, provided for the simulation analysis of an embodiment of this application.

[0031] Among them, 100-sill rear longitudinal beam assembly; 10-sill; 11-sill inner plate; 111-sill inner plate front section; 112-sill inner plate middle section; 113-sill inner plate rear section; 114-first connecting part; 12-sill outer plate; 121-sill outer plate front section; 122-sill inner plate rear section; 13-reinforcing member; 131-reinforcing plate; 132-connecting structure; 133-first connecting member; 134-second connecting member; 135-third connecting member; 20-rear longitudinal beam; 30-fourth connecting member; 200-collision post. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0033] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0034] This application provides a vehicle, which can be an electric vehicle, a hybrid vehicle, a solar-powered vehicle, etc., and the specific type of vehicle is not specifically limited here. In order to realize the basic functions of the vehicle, the vehicle may include components such as a body, chassis, power system, and electrical system.

[0035] The vehicle body may include a frame, doors, and windows. The frame forms the overall external shape of the vehicle and creates the passenger space. Doors can be rotatably connected to the frame, allowing the interior of the passenger space to be opened or closed. Windows can be mounted on the doors or the frame, providing passengers with a view of the outside environment.

[0036] The chassis may include components such as the transmission system and the drive system. The drive system drives the wheels to rotate. Depending on the drive method, drive systems can be classified as front-wheel drive, rear-wheel drive, and four-wheel drive. The transmission system transmits power generated by the engine to the wheels.

[0037] A powertrain provides power to a vehicle, enabling it to perform basic driving functions. The composition of the powertrain varies depending on the type of vehicle. For example, when the vehicle is an electric vehicle, the powertrain may include electrical components such as an electric motor.

[0038] To supply power to electrical components such as electric motors, the vehicle provided in this application embodiment also includes a battery system. The battery system may include a battery pack, which can be used to provide electrical energy. The battery pack can be electrically connected to the vehicle's electrical components. In this way, the electrical energy from the battery pack can be transferred to the vehicle's electrical components to provide power.

[0039] As mentioned above, the vehicle body may include a frame, doors, and windows. The frame forms the overall external shape of the vehicle and creates a passenger seating space. The frame may include the sill and rear longitudinal beam assembly. Wherein, as Figure 1 As shown, Figure 1This is a schematic diagram of a sill rear longitudinal beam assembly 100 provided in an embodiment of this application. The sill rear longitudinal beam assembly 100 may include a sill 10 and a rear longitudinal beam 20. One end of the sill 10 may be connected to the rear longitudinal beam 20.

[0040] Below, we will further describe the threshold 10 provided in the embodiments of this application, such as... Figure 2 As shown, Figure 2 for Figure 1 The exploded view shown is of the sill rear longitudinal beam assembly 100. The sill 10 may include an inner sill plate 11, an outer sill plate 12, and a reinforcing member 13. The outer sill plate 12 is connected to the inner sill plate 11, and an accommodating space is formed between the inner sill plate 11 and the outer sill plate 12. One end of the inner sill plate 11 can be connected to the rear longitudinal beam 20.

[0041] The reinforcing member 13 is disposed within the accommodating space and is used for energy absorption and shock absorption. Since the reinforcing member 13 is placed between the outer sill plate 12 and the inner sill plate 11, when the vehicle sill plate 10 is involved in a collision, the reinforcing member 13 can provide a greater energy absorption effect to the sill plate 10, reduce the impact force on the inner sill plate 11, further reduce the impact force on the connection structure between the inner sill plate 11 and the rear longitudinal beam assembly during the collision, and prevent the connection between the sill plate 10 and the rear longitudinal beam 20 from failing.

[0042] The sill 10 provided in this application embodiment has a reinforcing member 13 between the inner sill plate 11 and the outer sill plate 12. When the sill 10 of the vehicle is hit by a collision, the reinforcing member 13 can play a good role in absorbing energy and damping shock, so that the overall energy absorption and damping effect of the sill 10 is good, making the sill 10 less prone to deformation, thereby ensuring that the connection between the sill 10 and the rear longitudinal beam 20 does not fail.

[0043] Therefore, the sill 10 provided in this application embodiment reduces the impact force on the inner sill plate 11 during a collision, reduces the impact force transmitted to the rear longitudinal beam 20, and significantly reduces the connection failure between the side pillar collision sill 10 and the rear longitudinal beam 20, thereby enabling it to meet the E-NCAP vehicle structure requirements.

[0044] For example, such as Figure 2 As shown, the sill plate 12 includes a front section 121 and a rear section 122, which can be connected by welding.

[0045] The sill inner panel 11 includes a front end 111, a middle section 112, and a rear section 113. The front end 111, the middle section 112, and the rear section 113 can all be welded together to form the sill inner panel 11. The rear section 113 can be connected to the rear longitudinal beam 20.

[0046] In some embodiments, such as Figure 3 As shown, Figure 3 This is a schematic diagram of a reinforcing member 13 provided in an embodiment of this application. The reinforcing member 13 includes a reinforcing plate 131 and a connecting structure 132. The connecting structure 132 is connected to the reinforcing plate 131 and to the inner sill plate 11. The reinforcing member 13 can use the reinforcing plate 131 as an energy-absorbing device. By fixing the reinforcing plate 131 to the inner sill plate 11 through the connecting structure 132, the reinforcing plate 131 can reduce the impact force on the inner sill plate 11 and the connecting structure 132 of the rear longitudinal beam 20 in the event of a side post collision.

[0047] In some embodiments, the number of connecting structures 132 can be multiple. Multiple connecting structures 132 are spaced apart along the extending direction of the reinforcing plate 131. The purpose of providing multiple connecting mechanisms is to improve the stability of the connection of the reinforcing member 13, ensuring that the reinforcing plate 131 is firmly fixed to the vehicle body, and maximizing the absorption of energy from side pillar collisions by the reinforcing plate 131.

[0048] It should be noted that there are multiple connection structures 132, and different numbers of connection structures 132 can be selected according to different structural arrangements. For example, such as... Figure 3 As shown, the number of connection structures 132 can be three.

[0049] In some embodiments, such as Figure 3 As shown, the connection structure 132 includes a first connector 133 and a second connector 134, the first connector 133 being connected to the inner sill plate 11 ( Figure 2 The second connector 134 passes through the first connector 133 and is threadedly connected to the reinforcing plate 131. In this way, the second connector 134 can connect the first connector 133 and the reinforcing plate 131 to each other, thereby connecting the reinforcing plate 131 and the inner sill plate 11. Furthermore, the threaded connection makes the connection between the second connector 134 and the reinforcing plate 131 more secure.

[0050] For example, the first connector 133 can be an L-shaped connector plate, and the second connector 134 can be a screw. The second connector 134 fixes the first connector 133 to the reinforcing plate 131, ensuring that the reinforcing plate 131 is firmly fixed to the sill 10, so that the reinforcing plate 131 can absorb the energy of the side pillar collision to the maximum extent.

[0051] In some embodiments, such as Figure 3As shown, the connecting structure 132 also includes a third connector 135, which passes through the first connector 133 and connects to the inner sill plate 11. In this way, the third connector 135 connects the first connector 133 and the inner sill plate 11, ensuring that the reinforcing plate 131 is firmly fixed to the vehicle body, maximizing the absorption of energy from a side pillar impact. For example, the third connector 135 can be a screw or other fastener.

[0052] In some embodiments, the first connector 133 is welded to the inner sill plate 11. Welding the first connector 133 to the inner sill plate 11 enhances the stability of the connection between the inner sill plate 11 and the first connector 133.

[0053] It should be noted that the structure of the connecting structure 132 varies depending on the specific connection method. For example, the shape of the first connecting member 133 can be selected based on its connection method. If the first connecting member 133 is connected to the reinforcing member 131 using multiple connection methods, one of the following can be selected: Figure 3 The larger first connector 133 shown on the left can be connected to the inner sill plate 11 by welding and the third connector 135. Alternatively, when the first connector 133 is connected only by the third connector 135, the first connector 133 can be... Figure 3 The smaller first connector 133 is shown on the right side of the middle section.

[0054] To achieve the connection between the inner sill plate 11 and the rear longitudinal beam 20, in some embodiments, such as Figure 4 As shown, one end of the sill inner plate 11 has a plurality of first connecting portions 114. The rear longitudinal beam 20 assembly has a plurality of second connecting portions, which are respectively connected to the plurality of first connecting portions 114. By providing connecting portions to connect the sill inner plate 11 and the rear longitudinal beam 20, the connection failure between the side post collision sill 10 and the rear longitudinal beam 20 can be reduced.

[0055] The first connecting portion 114 and the second connecting portion can be connected in various ways. In some embodiments, a portion of the first connecting portion 114 and a portion of the second connecting portion are welded together. In this case, the first connecting portion 114 and the second connecting portion can be a weld joint. For example, there are various ways to weld the first connecting portion 114 and the second connecting portion together, which may include CO2 shielded welding, fusion welding, etc.

[0056] At the same time, such as Figure 5As shown, the rear longitudinal beam assembly 100 of the door sill also includes a plurality of fourth connectors 30, and another part of the first connecting portion 114 and another part of the second connecting portion are respectively connected by the fourth connectors 30. In this case, the first connecting portion 114 and the second connecting portion can be connecting holes. For example, the fourth connectors 30 can be screws, bolts or other fasteners, which will not be described in detail here.

[0057] Therefore, by using different connection methods to connect the sill 10 and the rear longitudinal beam 20, the stability of the connection between the sill 10 and the rear longitudinal beam 20 can be enhanced, and the connection failure between the sill 10 and the rear longitudinal beam 20 can be reduced.

[0058] In some embodiments, the sill inner panel 11 can also be bonded to the rear longitudinal beam 20. Specifically, a layer of structural adhesive is applied to the overlapping area of ​​the sill inner panel 11 and the rear longitudinal beam 20. In this way, combined with other connection methods for the sill inner panel 11 and the rear longitudinal beam 20, adding an adhesive method can further enhance the stability of the connection between the sill inner panel 11 and the rear longitudinal beam 20, reducing the risk of connection failure between the side post and the sill 10 and the rear longitudinal beam 20.

[0059] When designing the dimensions of the reinforcing plate 131 near the rear longitudinal beam 20, a collision simulation method can be used for testing and selection, such as... Figure 6 As shown, Figure 6 To simulate and analyze the deformation structure of the sill and rear longitudinal beam 20, the collision column 200 collides with the outer sill plate 12, causing the outer sill plate 12 to deform. During the deformation process, the reinforcing plate 131 and the outer sill plate 12 are in the X direction (i.e., Figure 6 (in the direction shown by L1) and the Y direction (i.e.) Figure 6 Interference is detected in the direction shown by L2. The interfering material of the reinforcing plate 131 is then removed. The maximum interference dimensions L1 and L2 between the reinforcing plate 131 and the outer sill plate 12 in the X and Y directions are calculated again. The interference of the reinforcing plate 131 is then removed to obtain the optimal design dimensions for the rear end of the reinforcing plate 131. This design reduces the force transmitted from the reinforcing plate 131 to the inner sill plate 11 during the side column collision deformation, thereby reducing the stress on the connection between the inner sill plate 11 and the rear longitudinal beam 20.

[0060] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0061] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A threshold, characterized in that, include: Inner sill plate (11); An outer sill plate (12) is connected to the inner sill plate (11); a receiving space is formed between the inner sill plate (11) and the outer sill plate (12); and, A reinforcing member (13) is disposed within the accommodating space, and the reinforcing member (13) is used for energy absorption and shock absorption.

2. The threshold according to claim 1, characterized in that, The reinforcing member (13) includes: Reinforcing plate (131); and, The connecting structure (132) is connected to the reinforcing plate (131) and to the inner sill plate (11).

3. The threshold according to claim 2, characterized in that, The number of the connecting structures (132) is multiple; the multiple connecting structures (132) are spaced apart along the extension direction of the reinforcing plate (131).

4. The threshold according to claim 2, characterized in that, The connection structure (132) includes: The first connector (133) is connected to the inner sill plate (11); and, The second connector (134) passes through the first connector (133) and is threadedly connected to the reinforcing plate (131).

5. The threshold according to claim 4, characterized in that, The connection structure (132) further includes: The third connector (135) passes through the first connector (133) and is threadedly connected to the inner sill plate (11).

6. The threshold according to claim 4, characterized in that, The first connector (133) is welded to the inner sill plate (11).

7. A sill rear longitudinal beam assembly, characterized in that, Includes the threshold (10) of any one of claims 1-6.

8. The sill rear longitudinal beam assembly according to claim 7, characterized in that, One end of the inner sill plate (11) has a plurality of first connecting portions (114); the rear longitudinal beam assembly of the sill also includes: The rear longitudinal beam (20) has a plurality of second connecting parts; the plurality of second connecting parts are respectively connected to a plurality of first connecting parts (114).

9. The sill rear longitudinal beam assembly according to claim 8, characterized in that, A portion of the first connecting part (114) is welded to a portion of the second connecting part; The rear longitudinal beam assembly (100) of the sill also includes: Multiple fourth connectors (30), another portion of the first connector (114) and another portion of the second connector are respectively connected by the fourth connectors (30).

10. A vehicle, characterized in that, Includes the rear longitudinal beam assembly (100) of the sill as described in claim 9.

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