Threshold assembly and vehicle

Abstract

The application discloses a kind of door sill assembly and vehicle with it, the door sill assembly includes: door sill outer plate assembly;Door sill inner plate assembly, door sill outer plate assembly and door sill inner plate assembly are extended along the front-back direction of vehicle, door sill inner plate assembly is connected with door sill outer plate assembly and is jointly defined the installation cavity extending along the length direction of door sill outer plate assembly;Door sill reinforcing beam, door sill reinforcing beam is located in installation cavity, door sill reinforcing beam extends along the length direction of door sill outer plate assembly, door sill reinforcing beam is connected with door sill outer plate assembly;Door sill back baffle, door sill back baffle is located in installation cavity, door sill back baffle is connected with door sill outer plate assembly, along the front-back direction of vehicle, door sill back baffle is located at the rear side of door sill reinforcing beam.According to the door sill assembly of the application, the structural strength of door sill assembly is strengthened by the door sill reinforcing beam arranged in the installation cavity, the door sill back baffle effectively avoids the separation between the door sill reinforcing beam and the door sill outer plate assembly, and the overall structural strength of the door sill assembly is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and more particularly to a door sill assembly and a vehicle. Background Technology

[0002] With the widespread use and popularity of vehicles, the public has higher requirements for vehicle collision safety. However, the overall structural strength of traditional vehicle door sill assemblies is relatively weak, and their energy absorption effect is poor, failing to absorb most of the collision force. In particular, in the 25% small offset crash test, they intrude too much into the passenger compartment space, failing to ensure the integrity of the passenger compartment and easily causing significant injury to occupants. This results in poor vehicle collision safety performance and poses a significant safety risk. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a door sill assembly with high structural strength and resistance to deformation.

[0004] The present invention also proposes a vehicle comprising the aforementioned door sill assembly.

[0005] According to an embodiment of the present invention, a sill assembly includes: an outer sill panel assembly; an inner sill panel assembly, both the outer and inner sill panels extending along the longitudinal direction of the vehicle, the inner sill panel assembly being connected to the outer sill panel assembly and jointly defining a mounting cavity extending along the length direction of the outer sill panel assembly; a sill reinforcement beam disposed within the mounting cavity, extending along the length direction of the outer sill panel assembly, and connected to the outer sill panel assembly; and a sill rear baffle disposed within the mounting cavity, connected to the outer sill panel assembly, and located behind the sill reinforcement beam along the longitudinal direction of the vehicle.

[0006] According to an embodiment of the present invention, the sill assembly and the sill outer panel assembly both extend along the longitudinal direction of the vehicle. The sill inner panel assembly is connected to the sill outer panel assembly and together defines a mounting cavity extending along the length direction of the sill outer panel assembly. This three-dimensional structure of the mounting cavity disperses loads and reduces local pressure, thereby effectively improving the structural strength of the sill outer panel assembly and the sill inner panel assembly, and thus enhancing the structural strength of the sill assembly. Furthermore, a sill reinforcement beam disposed within the mounting cavity further strengthens the structural strength of the sill assembly. Simultaneously, a sill rear baffle is disposed within the mounting cavity and connected to the sill outer panel assembly. Located behind the sill reinforcement beam along the longitudinal direction of the vehicle, the rear baffle effectively prevents the connection between the sill reinforcement beam and the sill outer panel assembly from detaching when the front of the sill assembly is impacted and the sill reinforcement beam moves rearward under the impact force. This improves the reliability of the sill reinforcement beam, ensures its energy absorption effect, and thus enhances the deformation resistance of the sill assembly. This enables vehicles using this threshold assembly to improve their resistance to deformation in 100% frontal collisions, 40% offset collisions, 25% small offset collisions, or side collisions, thereby enhancing overall vehicle safety.

[0007] In some embodiments of the present invention, a sill support plate is further included, wherein the sill support plate is disposed within the mounting cavity, the sill support plate is connected to the sill outer plate assembly, and the sill support plate is located below the sill reinforcing beam for supporting the sill reinforcing beam.

[0008] In some embodiments of the present invention, the sill support plate includes a front sill beam support plate and a rear sill beam support plate, the front sill beam support plate and the rear sill beam support plate being spaced apart along the front-rear direction of the vehicle, the front sill beam support plate being opposite to the A-pillar of the vehicle, and the rear sill beam support plate being opposite to the B-pillar of the vehicle.

[0009] In some embodiments of the present invention, the sill beam rear support plate is a plurality of plates spaced apart along the longitudinal direction of the vehicle.

[0010] In some embodiments of the present invention, along the length direction of the inner sill plate assembly, the inner sill plate assembly includes an inner sill plate and a rear sill plate, the rear sill plate being connected to the rear end of the inner sill plate in the vehicle longitudinal direction.

[0011] In some embodiments of the present invention, along the length direction of the sill outer panel assembly, the sill outer panel assembly includes a sill outer panel, a front sill reinforcement plate, and a rear sill reinforcement plate. Along the front-rear direction of the vehicle, the front sill reinforcement plate is connected to the front end of the sill outer panel, and the rear sill reinforcement plate is connected to the rear end of the sill outer panel.

[0012] In some embodiments of the present invention, a door sill reinforcement plate is further included, the door sill reinforcement plate being located at the rear end of the outer door sill assembly and the inner door sill assembly along the front-rear direction of the vehicle, the door sill reinforcement plate being connected to both the outer door sill assembly and the inner door sill assembly.

[0013] In some embodiments of the present invention, a rear door sill reinforcement plate is further included, one end of which is connected to the rear end of the outer door sill assembly in the longitudinal direction of the vehicle, and the other end of which extends upward.

[0014] In some embodiments of the present invention, the threshold reinforcing beam has a cavity extending along the length direction of the outer threshold plate, and the cavity has reinforcing ribs extending along the length direction of the cavity. The reinforcing ribs include a first reinforcing plate and a second reinforcing plate, which are staggered. Both ends of the first reinforcing plate in the width direction and both ends of the second reinforcing plate in the width direction are connected to the inner wall of the cavity.

[0015] The vehicle according to an embodiment of the present invention includes the aforementioned door sill assembly.

[0016] According to an embodiment of the present invention, a sill assembly is provided. Both the outer sill panel assembly and the inner sill panel assembly extend along the longitudinal direction of the vehicle. The inner sill panel assembly is connected to the outer sill panel assembly, jointly defining a mounting cavity extending along the length direction of the outer sill panel assembly. This three-dimensional structure of the mounting cavity disperses loads and reduces local pressure, thereby effectively improving the structural strength of the outer and inner sill panel assemblies, and thus enhancing the structural strength of the sill assembly. Furthermore, a sill reinforcement beam disposed within the mounting cavity further strengthens the structural strength of the sill assembly. Simultaneously, a sill rear baffle is disposed within the mounting cavity and connected to the outer sill panel assembly. Located behind the sill reinforcement beam along the longitudinal direction of the vehicle, the rear baffle effectively prevents the connection between the sill reinforcement beam and the outer sill panel assembly from detaching when the front of the sill assembly is impacted and the sill reinforcement beam moves rearward under the impact force. This improves the reliability of the sill reinforcement beam, ensures its energy absorption effect, and thus enhances the deformation resistance of the sill assembly. This enables vehicles to withstand deformation in 100% frontal collisions, 40% offset collisions, 25% small offset collisions, or side collisions, thereby improving overall vehicle safety.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a perspective view of the sill assembly according to an embodiment of the present invention;

[0020] Figure 2 This is a perspective view of the sill assembly from another perspective according to an embodiment of the present invention, wherein the inner sill plate assembly is hidden;

[0021] Figure 3 This is an exploded view of the threshold assembly according to an embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional view of the threshold assembly according to an embodiment of the present invention;

[0023] Figure 5 This is a partial structural schematic diagram of the threshold assembly according to an embodiment of the present invention;

[0024] Figure 6 This is a perspective view of the sill beam rear support plate according to an embodiment of the present invention;

[0025] Figure 7 This is a perspective view of the front support plate behind the sill beam according to an embodiment of the present invention;

[0026] Figure 8 This is a perspective view of the threshold reinforcement plate according to an embodiment of the present invention.

[0027] Figure label:

[0028] 100. Door sill assembly;

[0029] 1. Sill plate assembly; 11. Mounting cavity; 12. Sill plate; 13. Front sill reinforcement plate; 131. Second mating surface; 132. Third mating surface; 14. Rear sill reinforcement plate;

[0030] 2. Door sill inner panel assembly; 21. Door sill inner panel; 22. Door sill rear connecting plate;

[0031] 3. Threshold reinforcement beam; 31. Cavity; 32. Reinforcing rib; 321. First reinforcing plate; 322. Second reinforcing plate; 33. First flow drill screw;

[0032] 4. Door sill back panel; 41. First bonding surface;

[0033] 5. Sill support plate; 51. Front sill beam support plate; 511. First connecting part; 512. First support part; 52. Rear sill beam support plate; 521. Second connecting part; 522. Second support part;

[0034] 6. Threshold reinforcement plate; 61. First antenna; 62. Second antenna;

[0035] 7. Reinforcing plate added behind the door sill;

[0036] 200. A-pillar;

[0037] 300, Column B. Detailed Implementation

[0038] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] The threshold assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0042] like Figures 1-4As shown, a sill assembly 100 according to an embodiment of the present invention includes an outer sill plate assembly 1, an inner sill plate assembly 2, a sill reinforcement beam 3, and a sill rear baffle 4. Both the outer sill plate assembly 1 and the inner sill plate assembly 2 extend along the longitudinal direction of the vehicle. The inner sill plate assembly 2 is connected to the outer sill plate assembly 1 and together defines a mounting cavity 11 extending along the length direction of the outer sill plate assembly 1. The sill reinforcement beam 3 is disposed within the mounting cavity 11 and extends along the length direction of the outer sill plate assembly 1, and is connected to the outer sill plate assembly 1.

[0043] Therefore, by using the mounting cavity 11 formed by the outer sill plate assembly 1 and the inner sill plate assembly 2 along the front-rear direction of the vehicle, the load is distributed and the local pressure is reduced by the three-dimensional structure of the mounting cavity 11, thereby effectively improving the structural strength of the outer sill plate assembly 1 and the inner sill plate assembly 2, and thus improving the structural strength of the sill assembly 100. Furthermore, the structural strength of the sill assembly 100 is further enhanced by the sill reinforcement beam 3 set in the mounting cavity 11.

[0044] Meanwhile, when the sill assembly 100 is applied to a vehicle, in the event of a side collision or a 25% small offset collision, the mounting cavity 11 and the sill reinforcement beam 3 provide dual energy absorption, effectively absorbing the collision force and improving the deformation resistance of the sill assembly 100. This effectively reduces the impact of the collision force on the passenger compartment, maximizing the safety of passengers in the passenger compartment. Furthermore, when the sill assembly 100 is applied to a new energy vehicle, in the event of a side collision or a 25% small offset collision, the sill assembly 100 can absorb the collision force, thereby reducing the impact force on the battery pack, preventing battery pack deformation, fire, or even explosion, and improving safety. In addition, this application enhances the overall vehicle performance of vehicles using the sill assembly 100 by improving its structure, enabling the vehicle to meet the test requirements for side collisions and 25% small offset collisions without requiring modifications to the entire vehicle body, thus reducing development costs.

[0045] Furthermore, the sill reinforcement beam 3 is connected to the sill outer panel assembly 1 by a plurality of first flow drill screws 33 (FDS) along the length of the sill outer panel assembly 1, and structural adhesive is filled at the connection points of the first flow drill screws 33. It is understood that the FDS technology utilizes the heat generated by the high-speed rotation of the screws to melt the base material, increasing pressure to penetrate the base material and create threads on it, thereby fixing two or more layers of panels together. Thus, the connection strength between the sill reinforcement beam 3 and the sill outer panel 12 is further improved by the flow drill screws and structural adhesive, thereby improving the overall reliability of the sill assembly 100 and its resistance to deformation.

[0046] Furthermore, the outer sill plate assembly 1 includes a first flange, an outer sill plate body, and a second flange connected sequentially along the height direction of the outer sill plate assembly 1. The inner sill plate assembly 2 includes a third flange, an inner sill plate body, and a fourth flange connected sequentially along the height direction of the inner sill plate assembly 2. The first flange is welded to the third flange, and the second flange is welded to the fourth flange, thereby enabling the inner sill plate assembly 2 and the outer sill plate 12 to jointly define the mounting cavity 11. At the same time, the welded connection has high reliability, reducing costs while ensuring connection strength.

[0047] The sill rear baffle 4 is located within the mounting cavity 11 and is connected to the sill outer panel assembly 1. Along the vehicle's longitudinal direction, the sill rear baffle 4 is positioned behind the sill reinforcement beam 3. Therefore, when the front of the sill assembly 100 is impacted (e.g., the vehicle to which the sill assembly 100 is applied is subjected to a 100% frontal collision, a 40% offset collision, or a 25% small offset collision) and the sill reinforcement beam 3 moves rearward under the impact force, the sill rear baffle 4, positioned behind the sill reinforcement beam 3, effectively prevents the connection between the sill reinforcement beam 3 and the sill outer panel assembly 1 from detaching, improves the reliability of the sill reinforcement beam 3, ensures its energy absorption effect, and thus enhances the deformation resistance of the sill assembly 100.

[0048] Meanwhile, the rear sill plate 4 further supports the mounting cavity 11 in the height direction of the sill assembly 100, improving the structural strength of the mounting cavity 11. When the sill assembly 100 is applied to a vehicle, when the vehicle is subjected to a side collision, the support of the rear sill plate 4 on the mounting cavity 11 further improves the deformation resistance of the sill assembly 100 and enhances safety.

[0049] Furthermore, such as Figure 3 As shown, the side of the sill rear baffle 4 facing the sill outer panel assembly 1 has a first mating surface 41 that fits against the side of the sill outer panel assembly 1 facing the sill rear baffle 4. The welding connection between the first mating surface 41 and the side of the sill outer panel assembly 1 facing the sill rear baffle 4 further ensures the reliable connection between the sill rear baffle 4 and the sill outer panel assembly 1 and reduces production costs.

[0050] According to an embodiment of the present invention, the sill assembly 100 has an outer sill plate assembly 1 and an inner sill plate assembly 2 that both extend in the front-rear direction of the vehicle. The inner sill plate assembly 2 is connected to the outer sill plate assembly 1 and together defines a mounting cavity 11 that extends in the length direction of the outer sill plate assembly 1. The three-dimensional structure of the mounting cavity 11 disperses the load and reduces local pressure, thereby effectively improving the structural strength of the outer sill plate assembly 1 and the inner sill plate assembly 2, and thus improving the structural strength of the sill assembly 100. Furthermore, the sill reinforcing beam 3 disposed in the mounting cavity 11 further strengthens the structural strength of the sill assembly 100. Meanwhile, the sill rear baffle 4 is located within the mounting cavity 11 and is connected to the sill outer panel assembly 1. Along the vehicle's longitudinal direction, the sill rear baffle 4 is positioned behind the sill reinforcement beam 3. When the front of the sill assembly 100 is impacted and the sill reinforcement beam 3 moves rearward under the impact force, the connection between the sill reinforcement beam 3 and the sill outer panel assembly 1 is effectively prevented from detaching, improving the reliability of the sill reinforcement beam 3, ensuring its energy absorption effect, and thus enhancing the deformation resistance of the sill assembly 100. Therefore, vehicles using this sill assembly 100 achieve deformation resistance in 100% frontal collisions, 40% offset collisions, 25% small offset collisions, or side collisions, improving overall vehicle safety.

[0051] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the sill assembly 100 also includes a sill support plate 5. The sill support plate 5 is located within the mounting cavity 11 and is connected to the outer sill plate assembly 1. The sill support plate 5 is positioned below the sill reinforcement beam 3 and is used to support the sill reinforcement beam 3. Therefore, through the support of the sill support plate 5 on the sill reinforcement beam 3, the sill reinforcement beam 3 is effectively prevented from overturning during a side collision. The sill reinforcement beam 3 can fully deform and absorb energy, thereby effectively reducing the impact of the collision force on the passenger compartment and maximizing the safety of passengers in the passenger compartment.

[0052] It should be noted that the threshold support plate 5 can also be set above or to the side of the threshold reinforcing beam 3, as long as it can play a role in stabilizing and supporting the threshold reinforcing beam 3, and there are no restrictions here.

[0053] In some embodiments of the present invention, such as Figure 2 and Figure 3As shown, the sill support plate 5 includes a front sill beam support plate 51 and a rear sill beam support plate 52. The front and rear sill beam support plates 51 and 52 are spaced apart along the longitudinal direction of the vehicle. The front sill beam support plate 51 faces the A-pillar 200 of the vehicle, and the rear sill beam support plate 52 faces the B-pillar 300. Thus, by supporting the sill reinforcement beam 3 through the front and rear sill beam support plates 51 and 52, the reliability of the sill assembly 100 is improved. Simultaneously, by positioning the front sill beam support plate 51 opposite the A-pillar 200 and the rear sill beam support plate 52 opposite the B-pillar 300, in the event of a 25% small offset collision, the front sill beam support plate 51 disperses the collision force borne by the A-pillar 200, and the rear sill beam support plate 52 disperses the collision force borne by the B-pillar 300, thereby maximizing the integrity of the vehicle body and improving the safety of passengers in the passenger compartment.

[0054] Furthermore, such as Figure 7 As shown, the sill beam front support plate 51 includes a first connecting portion 511 and a first support portion 512. The first connecting portion 511 and the sill reinforcement beam 3 are connected by multiple second-drill screws, and structural adhesive is filled at the connection points of the second-drill screws. The first support portion 512 is welded to the sill outer panel assembly 1. Thus, the connection strength between the sill reinforcement beam 3 and the sill beam front support plate 51 is further improved by the drill screws and structural adhesive, thereby enhancing the deformation resistance of the sill assembly 100 and ensuring that the sill beam front support plate 51 disperses the impact force borne by the A-pillar 200 during a 25% small offset collision. Furthermore, the welded connection reduces costs while ensuring connection strength.

[0055] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the sill beam rear support plates 52 are multiple and spaced apart along the front-rear direction of the vehicle. Therefore, the arrangement of multiple sill beam rear support plates 52 further ensures that the collision force borne by the B-pillar 300 is distributed, thereby maximizing the integrity of the vehicle body and improving the safety of passengers in the passenger compartment. For example, as... Figure 2 and Figure 3 As shown, there are two sill beam rear support plates 52 spaced apart along the front-rear direction of the vehicle, and the two sill beam rear support plates 52 are respectively opposite to the two ends of the B-pillar 300 along the front-rear direction.

[0056] Furthermore, such as Figure 6As shown, the sill beam rear support plate 52 includes a second connecting part 521 and a second support part 522. The second connecting part 521 and the sill reinforcement beam 3 are connected by multiple third-stage drilling screws, and structural adhesive is filled at the connection points of the third-stage drilling screws. The second support part 522 is welded to the sill outer panel assembly 1. Thus, the connection strength between the sill reinforcement beam 3 and the sill beam rear support plate 52 is further improved by the drilling screws and structural adhesive, thereby improving the deformation resistance of the sill assembly 100 and ensuring that the sill beam rear support plate 52 disperses the impact force borne by the B-pillar 300 in a 25% small offset collision.

[0057] In some embodiments of the present invention, such as Figure 3 As shown, along the length of the sill inner panel assembly 2, the sill inner panel assembly 2 includes a sill inner panel 21 and a sill rear connecting plate 22, with the sill rear connecting plate 22 connected to the rear end of the sill inner panel 21 in the vehicle's longitudinal direction. This arrangement facilitates the separate processing of the sill inner panel 21 and the sill rear connecting plate 22, followed by welding them together to form the sill inner panel assembly 2, thus reducing the production difficulty and cost of the sill inner panel assembly 2.

[0058] In some embodiments of the present invention, such as Figure 3 As shown, along the length of the sill outer panel assembly 1, the sill outer panel assembly 1 includes a sill outer panel 12, a front sill reinforcement plate 13, and a rear sill reinforcement plate 14. Along the longitudinal direction of the vehicle, the front sill reinforcement plate 13 is connected to the front end of the sill outer panel 12, and the rear sill reinforcement plate 14 is connected to the rear end of the sill outer panel 12. It is understandable that, since the front sill reinforcement plate 13 is connected to the A-pillar 200, this arrangement facilitates the separate processing of the sill outer panel 12, the front sill reinforcement plate 13, and the rear sill reinforcement plate 14, followed by welding to form the sill outer panel assembly 1, thus reducing the production difficulty and cost of the sill outer panel assembly 1. Simultaneously, the rear sill reinforcement plate 14 improves the durability and modal performance of the wheel arch area located behind the sill assembly 100.

[0059] Furthermore, such as Figure 5 As shown, the front door sill reinforcement plate 13 has a second mating surface 131 that fits against the side of the A-pillar 200 facing the front door reinforcement plate 13. The welding connection between the second mating surface 131 and the side of the A-pillar 200 facing the front door reinforcement plate 13 further ensures a reliable connection between the front door reinforcement plate 13 and the A-pillar 200. Furthermore, the front door reinforcement plate 13 has a third mating surface 132 that fits against the side of the outer door sill plate 12 facing the front door reinforcement plate 13. The welding connection between the third mating surface 132 and the side of the outer door sill plate 12 facing the front door reinforcement plate 13 further ensures a reliable connection between the front door reinforcement plate 13 and the outer door sill plate 12.

[0060] In some embodiments of the present invention, such as Figure 3As shown, the sill assembly 100 also includes a sill reinforcement plate 6. The sill reinforcement plate 6 is located at the rear end of the outer sill assembly 1 and the inner sill assembly 2 along the vehicle's longitudinal direction, and is connected to both the outer sill assembly 1 and the inner sill assembly 2. Therefore, the sill reinforcement plate 6 further supports the mounting cavity 11 in the height direction of the sill assembly 100, improving the structural strength of the mounting cavity 11 and thus enhancing the deformation resistance of the sill assembly 100.

[0061] Furthermore, such as Figure 8 As shown, the sill reinforcement plate 6 has a plurality of first tentacles 61 formed on the side near the outer sill plate assembly 1. The first tentacles 61 are used to connect with the outer sill plate assembly 1. The sill reinforcement plate 6 has a plurality of second tentacles 62 formed on the side near the inner sill plate assembly 2. The second tentacles 62 are used to connect with the inner sill plate assembly 2. This facilitates the connection between the sill reinforcement plate 6 and the outer sill plate assembly 1 and the inner sill plate 21, and improves assembly efficiency.

[0062] Specifically, firstly, the inner sill plate 21 and the rear sill connecting plate 22 are welded together to form the inner sill plate assembly 2. The outer sill plate 12, the front sill reinforcing plate 13, and the rear sill reinforcing plate 14 are then welded together to form the outer sill plate assembly 1. Next, the inner sill plate assembly 2 and the outer sill plate assembly 1 are welded together. When the inner sill plate assembly 2 and the outer sill plate assembly 1 are welded to the position of the sill reinforcing plate 6, the sill reinforcing plate 6 is welded together with the inner sill plate assembly 2 and the outer sill plate assembly 1 to further improve reliability.

[0063] In some embodiments of the present invention, such as Figure 1 and Figure 3 As shown, the sill assembly 100 also includes a rear sill reinforcement plate 7. One end of the rear sill reinforcement plate 7 is connected to the rear end of the outer sill assembly 1 along the vehicle's longitudinal direction, and the other end of the rear sill reinforcement plate 7 extends upwards. This arrangement further strengthens the overall structural strength of the sill assembly 100. Simultaneously, the rear sill reinforcement plate 7 improves the durability and modal performance of the wheel arch area located behind the sill assembly 100. Furthermore, due to space constraints during vehicle assembly, the outer sill assembly 1 and the rear sill reinforcement plate 7 are connected using structural adhesive during the assembly of the sill assembly 100.

[0064] In some embodiments of the present invention, such as Figure 4As shown, the sill reinforcement beam 3 has a cavity 31 extending along the length of the outer sill plate 12. The cavity 31 contains reinforcing ribs 32 extending along its length. Each reinforcing rib 32 includes a first reinforcing plate 321 and a second reinforcing plate 322, which are staggered. Both ends of the first reinforcing plate 321 and the second reinforcing plate 322 are connected to the inner wall of the cavity 31. Thus, the first reinforcing plate 321 and the second reinforcing plate 322 further enhance the structural strength and deformation resistance of the sill reinforcement beam 3. Simultaneously, when the vehicle is subjected to a side collision, the first reinforcing plate 321 and the second reinforcing plate 322 can effectively absorb the energy generated by the collision, preventing further energy transfer to the passenger compartment and causing occupant injury.

[0065] In one specific embodiment of this application, the threshold reinforcement beam 3 has a cross-sectional length of 132.255 mm and a height of 67 mm. The distance between the lowest point of the threshold reinforcement beam 3 and the bottom of the threshold outer plate assembly 1 is 117 mm. The threshold reinforcement beam 3 is made of 2.5 mm thick aluminum profile.

[0066] The vehicle according to an embodiment of the present invention is described below.

[0067] The vehicle according to an embodiment of the present invention includes the aforementioned door sill assembly 100.

[0068] According to an embodiment of the present invention, a sill assembly 100 is provided in the vehicle. The outer sill plate assembly 1 and the inner sill plate assembly 2 both extend in the front-rear direction of the vehicle. The inner sill plate assembly 2 is connected to the outer sill plate assembly 1 and together defines a mounting cavity 11 extending in the length direction of the outer sill plate assembly 1. The three-dimensional structure of the mounting cavity 11 disperses the load and reduces the local pressure, thereby effectively improving the structural strength of the outer sill plate assembly 1 and the inner sill plate assembly 2, and thus improving the structural strength of the sill assembly 100. Furthermore, the structural strength of the sill assembly 100 is further enhanced by the sill reinforcing beam 3 provided in the mounting cavity 11. Meanwhile, the sill rear baffle 4 is located within the mounting cavity 11 and is connected to the sill outer panel assembly 1. Along the vehicle's longitudinal direction, the sill rear baffle 4 is positioned behind the sill reinforcement beam 3. When the front of the sill assembly 100 is impacted and the sill reinforcement beam 3 moves rearward under the impact force, the connection between the sill reinforcement beam 3 and the sill outer panel assembly 1 is effectively prevented from detaching, improving the reliability of the sill reinforcement beam 3, ensuring its energy absorption effect, and thus enhancing the deformation resistance of the sill assembly 100. This achieves improved deformation resistance in 100% frontal collisions, 40% offset collisions, 25% small offset collisions, or side collisions, thereby enhancing overall vehicle safety.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A door sill assembly, characterized in that, include: Door sill outer panel assembly (1); The inner sill plate assembly (2) and the outer sill plate assembly (1) both extend along the front-rear direction of the vehicle. The inner sill plate assembly (2) is connected to the outer sill plate assembly (1) and together defines a mounting cavity (11) extending along the length direction of the outer sill plate assembly (1). A threshold reinforcing beam (3) is provided in the mounting cavity (11). The threshold reinforcing beam (3) extends along the length direction of the threshold outer plate assembly (1) and is connected to the threshold outer plate assembly (1). The sill rear baffle (4) is located in the mounting cavity (11) and is connected to the sill outer panel assembly (1). Along the front-rear direction of the vehicle, the sill rear baffle (4) is located on the rear side of the sill reinforcing beam (3). A door sill reinforcement plate (6) is located at the rear end of the outer door sill assembly (1) and the inner door sill assembly (2) along the front-rear direction of the vehicle. The door sill reinforcement plate (6) is connected to both the outer door sill assembly (1) and the inner door sill assembly (2). A rear door sill reinforcement plate (7) is provided, one end of which is connected to the rear end of the outer door sill assembly (1) along the front-rear direction of the vehicle, and the other end of which extends upward.

2. The sill assembly according to claim 1, characterized in that, Also includes: A sill support plate (5) is provided in the mounting cavity (11). The sill support plate (5) is connected to the sill outer plate assembly (1). The sill support plate (5) is located below the sill reinforcing beam (3) and is used to support the sill reinforcing beam (3).

3. The sill assembly according to claim 2, characterized in that, The sill support plate (5) includes a front sill support plate (51) and a rear sill support plate (52). The front sill support plate (51) and the rear sill support plate (52) are spaced apart along the front-rear direction of the vehicle. The front sill support plate (51) is opposite to the A-pillar (200) of the vehicle, and the rear sill support plate (52) is opposite to the B-pillar (300) of the vehicle.

4. The sill assembly according to claim 3, characterized in that, The sill beam rear support plate (52) consists of multiple plates spaced apart along the front-rear direction of the vehicle.

5. The sill assembly according to claim 1, characterized in that, Along the length of the sill inner panel assembly (2), the sill inner panel assembly (2) includes a sill inner panel (21) and a sill rear connecting plate (22), the sill rear connecting plate (22) being connected to the rear end of the sill inner panel (21) in the vehicle front-rear direction.

6. The sill assembly according to claim 1, characterized in that, Along the length of the sill outer panel assembly (1), the sill outer panel assembly (1) includes a sill outer panel (12), a front sill reinforcement plate (13), and a rear sill reinforcement plate (14). Along the front-rear direction of the vehicle, the front sill reinforcement plate (13) is connected to the front end of the sill outer panel (12), and the rear sill reinforcement plate (14) is connected to the rear end of the sill outer panel (12).

7. The sill assembly according to claim 1, characterized in that, The threshold reinforcing beam (3) has a cavity (31) extending along the length direction of the outer threshold plate (12). The cavity (31) has a reinforcing rib (32) extending along the length direction of the cavity (31). The reinforcing rib (32) includes a first reinforcing plate (321) and a second reinforcing plate (322). The first reinforcing plate (321) and the second reinforcing plate (322) are staggered. Both ends of the width direction of the first reinforcing plate (321) and both ends of the width direction of the second reinforcing plate (322) are connected to the inner wall of the cavity (31).

8. A vehicle, characterized in that, Includes the threshold assembly according to any one of claims 1-7.

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