Vehicle rocker assembly and vehicle

Abstract

This invention provides a vehicle door sill assembly and a vehicle, relating to the field of vehicle body technology. The vehicle door sill assembly includes: an inner door sill panel; an outer door sill panel connected to the inner door sill panel, the outer door sill panel and the inner door sill panel forming a first cavity, the first cavity communicating with the outside; a side panel, the outer door sill panel and the side panel forming a second cavity, the second cavity communicating with the first cavity; and a door sill beam assembly located within the first cavity, connected to the inner door sill panel. The door sill beam assembly is a hollow structure and has a first electrophoresis hole, the first electrophoresis hole communicating with the hollow structure and the first cavity, allowing electrophoretic fluid to enter the hollow cavity of the door sill beam assembly through the first electrophoresis hole, thereby achieving a complete electrophoretic fluid and electric field flow channel between the door sill beam assembly and the first and second cavities, solving the technical problem of poor corrosion resistance caused by the obstruction of the electrophoretic fluid and electric field channel in the door sill cavity by the reinforcement parts in the prior art.

Description

Technical Field

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

[0002] In existing technologies, to improve the side impact safety performance of the vehicle body, hollow reinforcement structures are generally used in the sill area to enhance rigidity. However, in traditional designs, the reinforcement components arranged in the sill cavity inevitably encroach on the physical space of the cavity, blocking the electrophoresis fluid and electric field channels. This affects the electrophoresis effect of the inner and outer cavities of the sill and the reinforcement component itself, as well as the wax injection in the inner cavity of the sill. In some cases, the reinforcement component is installed in close contact with the inner and outer panels of the sill, resulting in no electrophoresis on the close contact surface and no space for wax injection in the inner cavity of the sill.

[0003] There is currently no effective solution to the aforementioned technical problems. Summary of the Invention

[0004] The main objective of this invention is to provide a vehicle door sill assembly and a vehicle to solve the technical problem in the prior art where the reinforcement parts block the electrophoretic fluid and electric field channel of the door sill cavity, resulting in poor corrosion resistance.

[0005] To achieve the above objectives, according to one aspect of the present invention, a vehicle door sill assembly is provided, comprising: an inner door sill panel; an outer door sill panel connected to the inner door sill panel, the outer door sill panel and the inner door sill panel forming a first cavity, the first cavity communicating with the outside; a side panel, the outer door sill panel and the side panel forming a second cavity, the second cavity communicating with the first cavity; and a door sill beam assembly located within the first cavity, the door sill beam assembly being connected to the inner door sill panel, the door sill beam assembly being a hollow structure, and the door sill beam assembly having a first electrophoresis hole communicating with the hollow structure and the first cavity.

[0006] Furthermore, the first end of the sill beam assembly is connected to the inner sill plate via a connecting component, the second end of the sill beam assembly is spaced apart from the inner surface of the outer sill plate, and the third end of the sill beam assembly is connected to the inner sill plate.

[0007] Furthermore, the connecting assembly includes: a first connector; a second connector; and a gasket located between the sill beam assembly and the inner sill plate, the sill beam assembly being connected to the inner sill plate via the first connector and the second connector.

[0008] Furthermore, the sill beam assembly includes: a sill beam, the first end of which is connected to the inner sill plate via a connecting component, and the second end of the sill beam assembly being spaced apart from the inner surface of the outer sill plate; and a mounting bracket, one end of which is connected to the third end of the sill beam, and the other end of which is connected to the inner sill plate.

[0009] Furthermore, the sill beam includes a first segment, a portion of which extends along a first preset direction, and another portion of which extends along a second preset direction, the portion of the first segment and the other portion of the first segment forming a first sill beam cavity; a second segment, a portion of which extends along the first preset direction, and the other portion of the second segment extending along the second preset direction, the second segment and the portion of the first segment together forming a second sill beam cavity, the first sill beam cavity and the second sill beam cavity communicating; wherein, at least one of the first segment and the second segment is provided with a first electrophoresis hole, and at least one of the first sill beam cavity and the second sill beam cavity is connected to the first cavity through the first electrophoresis hole.

[0010] Furthermore, the inner cavities of the first threshold beam and the second threshold beam are sequentially arranged along a first preset direction.

[0011] Furthermore, there are at least two threshold beams, which are arranged side by side along a second predetermined direction, and / or the at least two threshold beams are arranged with the same or different dimensions.

[0012] Furthermore, there are at least two sill beams, and a drainage channel is formed between two adjacent sill beams and the mounting bracket.

[0013] Furthermore, the bottom of the threshold beam is positioned at a distance from the bottom of the first cavity.

[0014] According to another aspect of the present invention, a vehicle is provided having a vehicle door sill assembly, the vehicle door sill assembly being the aforementioned vehicle door sill assembly.

[0015] By applying the technical solution of this invention, a first cavity is formed by the outer sill plate and the inner sill plate, which is connected to the outside. The sill beam assembly is located in the first cavity, and a second cavity is connected to the first cavity. The sill beam assembly is connected to the inner sill plate. The sill beam assembly is a hollow structure and has a first electrophoresis hole. The first electrophoresis hole connects the hollow structure and the first cavity, allowing the electrophoretic liquid to enter the hollow cavity of the sill beam assembly through the first electrophoresis hole. This solves the technical problem in the prior art where the reinforcement blocks the electrophoretic liquid and electric field flow channels, encroaching on the physical space of the sill cavity, resulting in poor corrosion resistance due to the deterioration of the anti-corrosion structure such as electrophoresis, wax injection, and drainage of the reinforcement and the inner and outer cavities of the sill. This invention achieves systematic corrosion protection for the sill assembly with the reinforcement structure, significantly improving the durability and safety of the whole vehicle in humid and salt spray environments. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of a first embodiment of a vehicle door sill assembly according to the present invention is shown;

[0018] Figure 2 A schematic diagram of a second embodiment of the vehicle door sill assembly according to the present invention is shown;

[0019] Figure 3 A cross-sectional view at BB is shown in a first embodiment of the vehicle door sill assembly according to the present invention;

[0020] Figure 4 A cross-sectional view at AA is shown in a first embodiment of the vehicle door sill assembly according to the present invention;

[0021] Figure 5 A schematic diagram of a third embodiment of the vehicle door sill assembly according to the present invention is shown;

[0022] Figure 6 A schematic diagram of a fourth embodiment of the vehicle door sill assembly according to the present invention is shown;

[0023] Figure 7 A schematic diagram of the structure at CC is shown in a fourth embodiment of the vehicle door sill assembly according to the present invention.

[0024] The above figures include the following reference numerals:

[0025] 10. Inner door sill panel;

[0026] 100. First cavity;

[0027] 101. Second electrophoresis well;

[0028] 20. Door sill outer panel;

[0029] 200. Second cavity;

[0030] 201. Third electrophoresis well;

[0031] 30. Door sill beam assembly;

[0032] 300, First electrophoresis well;

[0033] 31. Threshold beam;

[0034] 311. First group of paragraphs;

[0035] 301. The inner cavity of the first threshold beam;

[0036] 302. Inner cavity of the second threshold beam;

[0037] 312. The second section;

[0038] 32. Install the bracket;

[0039] 33. Drainage channels;

[0040] 40. Side outer panels;

[0041] 401, Fourth electrophoresis well;

[0042] 50. Connecting components;

[0043] 51. First connecting component;

[0044] 52. Second connector;

[0045] 53. Gasket. Detailed Implementation

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] It should be noted that the terms "first," "second," etc., 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 terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0049] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0050] In existing conventional vehicle door sill structures, to improve side-impact safety performance, reinforcement structures are usually arranged in the cavity formed by the inner and outer door sill panels, such as structural reinforcement blocks, reinforcement plates, aluminum profiles, or roll-formed steel beams, to enhance overall rigidity and absorb collision energy.

[0051] Meanwhile, the reinforcement components located inside the door sill cavity block the flow channel of the electrophoretic liquid and shield the electrophoretic electric field, preventing the electrophoretic liquid from flowing sufficiently into the interior of the reinforcement component and the surrounding cavity, thus creating a weak area in the electrophoretic film thickness. Furthermore, when the door sill reinforcement components are located too low or have an excessively large cross-section, the bottom of the cavity may not be able to be waxed for corrosion protection due to the lack of space for wax injection. Additionally, when the vehicle is used in water, the door sill may accumulate water due to poor drainage, leading to a concentrated risk of corrosion and severely affecting durability.

[0052] Combination Figures 1 to 7 As shown, according to a specific embodiment of this application, a vehicle door sill assembly is provided.

[0053] Specifically, the vehicle sill assembly includes an inner sill plate 10, an outer sill plate 20, and a sill beam assembly 30. The outer sill plate 20 is connected to the inner sill plate 10, and the outer sill plate 20 and the inner sill plate 10 enclose a first cavity 100, which is connected to the outside. A side panel 40 is also included, and the outer sill plate 20 and the side panel 40 enclose a second cavity 200, which is connected to the first cavity 100. The sill beam assembly 30 is located inside the first cavity 100 and is connected to the inner sill plate 10. The sill beam assembly 30 has a hollow structure and a first electrophoresis hole 300, which connects the hollow structure and the first cavity 100.

[0054] Combination Figures 1 to 3As shown, the first cavity 100 is connected to the outside. Combined with the setting of the first electrophoresis hole 300, the electrophoretic liquid can enter the interior of the sill beam assembly 30 through the first cavity 100, ensuring that the entire electrophoresis path is unobstructed. By setting the sill beam assembly 30 as a hollow structure and placing it inside the first cavity 100, and connecting it to the inner sill plate 10, the sill beam assembly 30 can bear the side impact load and achieve structural reinforcement without encroaching on the external space of the first cavity 100. At the same time, an electrophoresis path is formed through the first electrophoresis hole 300, the first cavity 100, and the second cavity 200. Without changing the original enclosure structure of the inner sill plate 10 and the outer sill plate 20, the integration of structural reinforcement and internal anti-corrosion function is achieved, avoiding electrophoresis dead zones caused by adding reinforcement components. By setting a first electrophoresis hole 300 on the sill beam assembly 30 to connect its internal hollow structure with the first cavity 100, the electrophoretic liquid can enter the hollow cavity of the sill beam assembly 30 through the first electrophoresis hole 300, thereby achieving complete electrophoretic coverage of the sill beam assembly 30 body. This solves the problem of localized corrosion caused by traditional reinforcing parts being unable to undergo electrophoresis due to being wrapped or bonded, and lacking an internal paint film.

[0055] In one exemplary embodiment of this application, several sets of first electrophoresis holes 300 are arranged along the length of the sill beam assembly 30 to ensure that the inner and outer surfaces of the sill beam are fully electrophoresed along the entire length. This is particularly important for easily corroded steel beams. For materials with strong corrosion resistance (such as aluminum or structural reinforcement blocks), the number of sets of first electrophoresis holes 300 can be reduced, minimizing the reduction in sill beam strength caused by openings. Through the coordinated operation of the inner sill plate 10, outer sill plate 20, first cavity 100, side outer plate 40, second cavity 200, sill beam assembly 30, and first electrophoresis holes 300, a complete electrophoresis path is constructed from the outer cavity to the interior of the reinforcing beam. For the first time, systematic corrosion protection of the sill reinforcement structure is achieved without changing the existing assembly process, significantly improving the durability and safety of the entire vehicle in humid and salt spray environments.

[0056] Furthermore, the first end of the sill beam assembly 30 is connected to the inner sill plate 10 via the connecting assembly 50, the second end of the sill beam assembly 30 is spaced apart from the inner surface of the outer sill plate 20, and the third end of the sill beam assembly 30 is connected to the inner sill plate 10.

[0057] Combination Figure 1 , Figure 3 and Figure 4As shown, the first end of the sill beam assembly 30 is connected to the inner sill plate 10 via a connecting component 50. This connection method ensures stable fixation of the sill beam assembly 30 at the first end. Simultaneously, the presence of the connecting component 50 prevents a large area of ​​direct contact between the sill beam assembly 30 and the inner sill plate 10, maintaining a suitable physical gap between them. This provides potential space for the flow of electrophoretic fluid in localized areas and for the drainage of water accumulated on the sill after the vehicle has driven through water. The second end of the sill beam assembly 30 is spaced apart from the inner surface of the outer sill plate 20. This structural design prevents the sill beam assembly 30 from contacting or adhering to the outer sill plate 20, ensuring a continuous gap area between them. This prevents paint film defects caused by direct contact, which would prevent the electrophoretic fluid from penetrating the area. The third end of the sill beam assembly 30 is connected to the inner sill plate 10. This connection method further enhances the installation stability of the sill beam assembly 30 on the inner sill plate 10, providing two-point support and improving structural rigidity and force transmission efficiency.

[0058] In summary, the sill beam assembly 30 is connected to the inner sill plate 10 at its first and third ends, respectively, and is spaced from the outer sill plate 20 at its second end, forming a non-fitted, non-enclosed three-dimensional installation configuration. This configuration, without adding any extra openings or passages, naturally creates multiple non-fitted electrophoretic fluid permeable gaps and drainage channels for sill water between the sill beam assembly 30 and the inner and outer sill plates 10 and 20 through spatial isolation. This structural layout allows the electrophoretic fluid to flow around the surface of the sill beam assembly 30 and between it and the surrounding plates, effectively avoiding unpainted areas caused by large-area fitting, improving the overall electrophoretic coverage and corrosion resistance consistency of the reinforcement components. Thus, by relying solely on optimized spatial spacing and connection methods, it achieves a systematic improvement in the corrosion resistance of the sill assembly with the sill reinforcement components and facilitates the rapid and smooth drainage of water accumulated in the sill cavity after the vehicle has driven through water.

[0059] Furthermore, the connecting assembly 50 includes a first connector 51, a second connector 52, and a gasket 53. The gasket 53 is located between the sill beam assembly 30 and the inner sill plate 10. The sill beam assembly 30 is connected to the inner sill plate 10 through the first connector 51 and the second connector 52.

[0060] Combination Figure 3 and Figure 4As shown, the connecting assembly 50 includes a first connector 51, a second connector 52, and a gasket 53. The gasket 53 is located between the sill beam assembly 30 and the inner sill plate 10. Its physical presence directly blocks direct contact between the sill beam assembly 30 and the inner sill plate 10, forming a non-fitting area except for the mounting point. This avoids the insulation area that the electrophoretic coating cannot cover due to direct metal-to-metal bonding. The first connector 51 and the second connector 52 serve as fastening elements, passing through the gasket 53 and connecting the sill beam assembly 30 and the inner sill plate 10. Their function is to provide mechanical fixation while maintaining the stable position of the gasket 53, ensuring that the gap remains and does not close due to vibration or assembly stress.

[0061] Furthermore, the first connector 51 is a bolt, the second connector 52 is a nut, and the thickness of the washer 53 is ≥3mm. The first connector 51 and the second connector 52 together constitute a bolt-nut fastening combination. This combination achieves mechanical connection only through thread engagement and end face pressing. The structure of the washer 53 is limited to the installation point. Due to its small size, it naturally avoids large-area contact. Without relying on additional openings or gap designs, it achieves electrophoretic coverage of the surface and gaps of the connection part, forming an electrophoretic seal around the perimeter of the fastening direct contact area, avoiding corrosion caused by the lack of electrophoresis at the installation point contact position.

[0062] In this embodiment, the first end of the sill beam assembly 30 is connected to the inner sill plate 10 via the connecting component 50. This connection method provides stable constraint to the sill beam assembly 30 at this location, offering a supporting foundation for the overall structure. The introduction of the gasket 53 ensures that there is always a physical gap between the sill beam assembly 30 and the inner sill plate 10 at the connection point, guaranteeing that the electrophoretic coating solution can penetrate along the gap and preventing localized paint loss due to adhesion. Simultaneously, the spaced design between the second end of the sill beam assembly 30 and the outer sill plate 20 further expands the non-adhesive surface that can be electrophoretically covered. This structure, through the coordinated configuration of the gasket 53 and the connector in the connecting component 50, achieves effective electrophoretic coverage of the connection area between the sill beam assembly 30 and the surrounding plates solely through spatial isolation and non-adhesive connection, significantly improving the corrosion resistance consistency and durability of this critical component.

[0063] Furthermore, the sill beam assembly 30 includes a sill beam 31 and a mounting bracket 32. The first end of the sill beam 31 is connected to the inner sill plate 10 via a connecting component 50, and the second end of the sill beam assembly 30 is spaced apart from the inner surface of the outer sill plate 20. One end of the mounting bracket 32 ​​is connected to the third end of the sill beam 31, and the other end of the mounting bracket 32 ​​is connected to the inner sill plate 10.

[0064] Combination Figure 1 , Figure 5 and Figure 6As shown, the first end of the sill beam 31 is connected to the inner sill plate 10 via the connecting assembly 50, achieving a fixed connection with the vehicle body and providing longitudinal constraint for the overall structure. The second end of the sill beam 31 is spaced apart from the inner surface of the outer sill plate 20, ensuring a continuous gap between the sill beam 31 and the outer sill plate 20 at this position, preventing the loss of electrophoresis and drainage channels due to contact. The third end of the sill beam 31 is supported by the mounting bracket 32 ​​as an intermediate transition piece, thereby creating a structural separation between the sill beam 31 and the inner sill plate 10, preventing direct contact between the two. One end of the mounting bracket 32 ​​is connected to the third end of the sill beam 31, and the other end is connected to the bottom of the inner sill plate 10. Its function is to effectively transfer the load of the sill beam 31 to the vehicle body, while maintaining the non-contact installation state of the sill beam 31 at this end, reserving space for the flow of electrophoretic fluid in local areas.

[0065] In this embodiment, the sill beam 31 is fixed to the inner sill plate 10 at its first end via a connecting component 50, indirectly connected to the inner sill plate 10 at its third end via a mounting bracket 32, and its second end remains in a non-contact state with the outer sill plate 20, forming a three-dimensional spatial layout with three-point support and two non-adhesive points. This structure, through the introduction of the mounting bracket 32, enables the sill beam 31 to be installed in a non-directly adhesive manner at both longitudinal ends, completely avoiding the formation of a large-area metal contact surface between the sill beam 31 and the inner sill plate 10 or the outer sill plate 20. This naturally creates multiple gap areas permeable to the electrophoretic liquid without relying on additional openings or processes, achieving comprehensive electrophoretic coverage of the outer surface of the sill beam 31, significantly improving its corrosion resistance and overall vehicle durability.

[0066] Furthermore, there are multiple mounting brackets 32, which are spaced apart along the length of the sill beam 31. This arrangement creates a multi-point support configuration. Each mounting bracket 32 ​​independently connects the sill beam 31 to the inner sill plate 10. This arrangement provides local constraint on the sill beam 31 at multiple longitudinal positions, preventing structural deformation and displacement caused by single-point or few-point support.

[0067] Multiple mounting brackets 32 are spaced apart along the length of the sill beam 31. Through the discontinuous spatial distribution, the non-adhesive area between the outer surface of the sill beam 31 and the inner sill plate 10 is effectively expanded without increasing the structural complexity. This improves the uniformity and integrity of the electrophoretic solution covering the sill beam 31 body, and enhances the reliability and consistency of the overall anti-corrosion performance.

[0068] Further, the threshold beam 31 includes a first component segment 311 and a second component segment 312. A portion of the first component segment 311 extends along a first preset direction, and another portion of the first component segment 311 extends along a second preset direction. The first component segment 311 and the other portion of the first component segment 311 enclose a first threshold beam cavity 301. A portion of the second component segment 312 extends along the first preset direction, and the other portion of the second component segment 312 extends along the second preset direction. The second component segment 312 and the first component segment 311 together enclose a second threshold beam cavity 302. The first threshold beam cavity 301 and the second threshold beam cavity 302 are connected. At least one of the first component segment 311 and the second component segment 312 is provided with a first electrophoresis hole 300. At least one of the first threshold beam cavity 301 and the second threshold beam cavity 302 is connected to the first cavity 100 through the first electrophoresis hole 300.

[0069] The portion of the first segment 311 extending along a first preset direction and the portion extending along a second preset direction together enclose the inner cavity 301 of the first threshold beam. This structure allows the threshold beam 31 to form a closed or semi-closed cavity space in a local area, providing a accommodating area for the retention and flow of the internal electrophoretic solution. The portion of the second segment 312 extending along the first and second preset directions, together with a portion of the first segment 311, encloses the inner cavity 302 of the second threshold beam. This cavity communicates with the inner cavity 301 of the first threshold beam, forming a continuous internal channel and expanding the permeability range of the electrophoretic solution inside the threshold beam 31. At least one of the first segment 311 and the second segment 312 is provided with a first electrophoretic hole 300. This hole serves as the only channel communicating with the external environment, allowing the electrophoretic solution to enter the internal cavity system of the threshold beam 31 from the outside.

[0070] Combination Figure 2 and Figure 7 As shown, the first segment 311 and the second segment 312 extend in multiple directions and enclose each other to form interconnected first sill beam cavities 301 and 302, creating a complex but continuous internal electrophoresis channel that enhances the strength of the sill beam 31. The first electrophoresis hole 300 serves as the sole inlet to this internal system, allowing the electrophoretic solution to enter the sill beam 31 through the first cavity 100, achieving complete coverage of the entire internal cavity system. This structure, through its multi-segment combination and cavity interconnection design, achieves complete electrophoretic protection of the internal space of the sill beam 31 body without relying on external reinforcement, solely through the connection between the internal cavity and the first electrophoresis hole 300, significantly improving its corrosion resistance and structural durability.

[0071] In a preferred embodiment of this application, both the first component segment 311 and the second component segment 312 are provided with a first electrophoresis aperture 300. Figure 2As shown, the first set of segment 311 and the second set of segment 312 are both provided with the first electrophoresis holes 300. By synchronously arranging the liquid inlet holes on multiple segments, multi-point and synchronous electrophoresis coverage of multiple cavities inside the sill beam 31 is achieved, improving the reliability of the overall anti-corrosion performance and the process adaptability.

[0072] Furthermore, the first sill beam inner cavity 301 and the second sill beam inner cavity 302 are arranged in sequence along the first preset direction.

[0073] Combined with Figure 7 As shown, the first sill beam inner cavity 301 and the second sill beam inner cavity 302 are arranged in sequence along the first preset direction, and the first preset direction is the thickness direction of the sill beam 31. After excluding the local opening area corresponding to the first electrophoresis hole 300, the remaining wall structure forms a closed contour on the cross-section, consisting of two juxtaposed cavities and an intermediate partition wall, and its shape is consistent with the "day" character structure, that is, composed of two upper and lower horizontal chambers and an intermediate longitudinal partition wall. The "day" character cross-section, due to its structural characteristics of double cavity separation and intermediate stiffeners, significantly improves the bending stiffness and torsional resistance of the sill beam 31 in the force direction, enabling the effective increase of the section moment of inertia of the overall structure without increasing the material thickness.

[0074] Furthermore, there are at least two sill beams 31, and at least two sill beams 31 are arranged side by side along the second preset direction of the sill beam 31.

[0075] Combined with Figure 7 As shown, at least two sill beams 31 are arranged side by side along the second preset direction, and the second preset direction is defined as the width direction of the sill beam 31, indicating that each sill beam 31 is arranged in a columnar manner in the transverse dimension perpendicular to its length and thickness, parallel to each other and spaced apart, achieving the transverse expansion of the structural bearing capacity and the improvement of stability in the threshold area without increasing the size of a single beam.

[0076] Furthermore, there are at least two sill beams 31, and at least two sill beams 31 are set with the same or different sizes.

[0077] There are at least two sill beams 31, and at least two sill beams 31 are set with the same or different sizes, indicating that multiple sill beams 31 can adopt a unified specification in terms of structural parameters, or can be designed differently according to functional requirements. The same or different sizes cover the independent configuration of any structural parameters such as length, height, cross-sectional profile, wall thickness, etc., enabling each sill beam 31 to achieve differential matching of performance in the same installation area. For example, large-size beam bodies are used in local high-load areas, and small-size beam bodies are used in low-load areas. This setting method does not rely on structural connections or shared components, and only through the flexible selection of individual sizes, the coordinated optimization of structural stiffness, mass distribution and manufacturing cost is achieved without increasing the overall complexity.

[0078] Combination Figure 7 As shown, in one embodiment of this application, there are two threshold beams 31, and the two threshold beams 31 are set with different sizes, so as to achieve synergistic optimization of structural stiffness, mass distribution and manufacturing cost without increasing the overall complexity.

[0079] Furthermore, there are at least two threshold beams 31, and a drainage channel 33 is formed between two adjacent threshold beams 31 and the mounting bracket 32.

[0080] A drainage channel 33 is formed between two adjacent sill beams 31 and the mounting bracket 32, indicating that a connected gap area is naturally formed between the lateral boundaries of the two adjacent sill beams 31 and the surface of the same mounting bracket 32 ​​due to their relative positional relationship. When water flows into the sill area along the side of the vehicle body, this gap provides a lateral drainage path for the liquid, allowing water to flow smoothly out along the area between adjacent sill beams 31, avoiding stagnation in low-lying areas of the structure, and effectively improving the corrosion resistance and durability of the sill area.

[0081] Combination Figure 7 As shown, in one embodiment of this application, a drainage channel 33 is formed between the bottom rounded corners of two adjacent sill beams 31 and the mounting bracket 32. This indicates that a continuous slit-like passage is naturally formed between the outer contour of the bottom arc-shaped transition area (i.e., the bottom rounded corner) of the two adjacent sill beams 31 and the corresponding surface of the mounting bracket 32 ​​due to the assembly gap. The formation of this drainage channel 33 depends entirely on the spatial relationship between the geometry (bottom rounded corner) of the sill beam 31 and the positioning structure of the mounting bracket 32, without the need for additional holes, guide channels, or drainage components. Since the bottom rounded corner is the lowest point of the structure, water naturally converges there under gravity, and the drainage channel 33 is located precisely at the boundary of this accumulation area, providing a direct, low-resistance discharge path for the liquid.

[0082] The bottom rounded corners of two adjacent threshold beams 31 form a drainage channel 33 between them and the mounting bracket 32. Through the natural fit between the inherent geometric shape of the structure and the assembly gap, an efficient, reliable, and cost-free drainage path is constructed in areas where water is prone to accumulate, significantly enhancing the durability and corrosion resistance of the threshold area.

[0083] Furthermore, the bottom of the threshold beam 31 is positioned at a distance from the bottom of the first cavity 100.

[0084] The bottom of the threshold beam 31 is positioned at a distance from the bottom of the first cavity 100. By establishing a non-contact gap in the vertical direction, the coating and waxing process of the bottom area of ​​the first cavity 100 is fully implemented, thereby improving the reliability of the overall anti-corrosion performance from the source.

[0085] This application optimizes existing conventional threshold technology, using roll-formed steel instead of aluminum for the threshold beam 31. It focuses on addressing how to improve structural strength while simultaneously ensuring adequate electrophoresis, feasible wax injection, and smooth drainage for corrosion protection. Through structural design, electrophoresis channels, wax injection spaces, and drainage paths are established between the steel beam body, installation interfaces, and surrounding cavities, achieving a synergistic improvement in safety and corrosion resistance. This addresses the shortcomings in existing technologies regarding the adaptability of steel threshold corrosion protection processes.

[0086] Furthermore, the vehicle sill assembly also includes a side panel 40, which is connected to the sill panel 20. The side panel 40 and the sill panel 20 form a second cavity 200. The sill panel 10 has a second electrophoresis hole 101. The first cavity 100 communicates with the outside through the second electrophoresis hole 101. The sill panel 20 has a third electrophoresis hole 201. The second cavity 200 communicates with the first cavity 100 through part of the third electrophoresis hole 201 and with the outside through another part of the third electrophoresis hole 201. The side panel 40 has a fourth electrophoresis hole 401, and the second cavity 200 communicates with the outside through the fourth electrophoresis hole 401.

[0087] Combination Figure 2 As shown, the first electrophoresis hole 300, the second electrophoresis hole 101, the third electrophoresis hole 201, and the fourth electrophoresis hole 401 together form a multi-level, interconnected electrophoresis path. This allows the first cavity 100, the second cavity 200, and the sill beam 31 to achieve independent liquid intake and exhaust during the coating process, avoiding insufficient film thickness, paint film gaps, or corrosion risks caused by a closed structure. This interconnected electrophoresis structure does not add any extra process steps or complex assembly; it only achieves cavity interconnection by opening through holes in the existing sheet material, ensuring corrosion resistance while maintaining structural simplicity and manufacturing feasibility.

[0088] According to another specific embodiment of this application, a vehicle is also provided, the vehicle having a vehicle door sill assembly, the vehicle door sill assembly being the same as the vehicle door sill assembly in the above embodiments.

[0089] By integrating the aforementioned vehicle door sill assembly, the vehicle possesses synergistically optimized structural characteristics in terms of side impact protection, electrophoretic flow, drainage, and wax injection space protection, significantly improving the structural safety and corrosion resistance of the door sill area without increasing manufacturing complexity or process costs.

[0090] The above embodiments achieve the following technical effects:

[0091] 1. Improve the integrity of electrophoretic coating: By setting the first electrophoretic hole 300 in the length direction of the hollow roll-pressed steel (threshold beam 31), the electrophoretic liquid can enter the internal cavity of the beam body; at the same time, the inner threshold plate 10 opens the second electrophoretic hole 101, the outer threshold plate 20 opens the third electrophoretic hole 201, and the outer side plate 40 opens the fourth electrophoretic hole 401, so that the first cavity 100 and the second cavity 200 are interconnected and connected to the outside, completely eliminating the electrophoretic dead corners caused by the closed cavity, and ensuring that the steel beam body and all surrounding cavities obtain a uniform and complete electrophoretic paint film.

[0092] 2. Ensure the feasibility of the wax injection process: By maintaining a non-contact gap between the bottom of the sill beam 31 and the bottom of the first cavity 100, a stable wax injection space is reserved for the bottom of the sill, so that the anti-corrosion wax can be fully sprayed onto the bottom wall of the cavity, preventing bottom corrosion caused by long-term water accumulation.

[0093] 3. Achieve effective drainage and rust prevention: A drainage channel 33 is formed between the adjacent sill beam 31 and the mounting bracket 32, so that liquid infiltrating the area can be discharged in time; at the same time, the sill beam 31 is kept apart from the outer sill plate 20 and isolated from the inner sill plate 10 by the gasket 53 to avoid large-area contact, block the path of water accumulation and significantly reduce the risk of rust.

[0094] 4. Enhanced structural stability and lightweight synergy: By designing the sill beam 31 as a dual-cavity structure with multiple segments combined along the height direction (the inner cavity 301 of the first sill beam and the inner cavity 302 of the second sill beam), and arranging at least two steel beams side by side in the transverse direction, local strength differentiation configuration is achieved, which satisfies the side impact energy absorption requirements while taking into account the material utilization rate and lightweight goal.

[0095] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0096] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0097] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0098] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle door sill assembly, characterized in that, include: Inner sill plate (10); A threshold outer panel (20) is connected to the threshold inner panel (10). The threshold outer panel (20) and the threshold inner panel (10) form a first cavity (100), which is connected to the outside. The side panel (40) and the threshold panel (20) together form a second cavity (200), which is connected to the first cavity (100). A sill beam assembly (30) is located inside the first cavity (100). The sill beam assembly (30) is connected to the inner sill plate (10). The sill beam assembly (30) is a hollow structure and has a first electrophoresis hole (300) that connects the hollow structure and the first cavity (100).

2. The vehicle door sill assembly according to claim 1, characterized in that, The first end of the sill beam assembly (30) is connected to the inner sill plate (10) via a connecting assembly (50), the second end of the sill beam assembly (30) is spaced apart from the inner surface of the outer sill plate (20), and the third end of the sill beam assembly (30) is connected to the inner sill plate (10).

3. The vehicle door sill assembly according to claim 2, characterized in that, The connection component (50) includes: First connector (51); Second connector (52); A gasket (53) is located between the sill beam assembly (30) and the sill inner plate (10), the sill beam assembly (30) being connected to the sill inner plate (10) via the first connector (51) and the second connector (52).

4. The vehicle door sill assembly according to claim 2 or 3, characterized in that, The sill beam assembly (30) includes: A threshold beam (31) is provided, the first end of which is connected to the inner threshold plate (10) via the connecting assembly (50), and the second end of the threshold beam assembly (30) is provided at intervals with the inner surface of the outer threshold plate (20). Mounting bracket (32), one end of which is connected to the third end of the threshold beam (31), and the other end of which is connected to the inner threshold plate (10).

5. The vehicle door sill assembly according to claim 4, characterized in that, The threshold beam (31) includes: The first component segment (311) has a portion extending along a first preset direction and another portion extending along a second preset direction. The portion of the first component segment (311) and the other portion of the first component segment (311) together form the inner cavity (301) of the first threshold beam. The second component segment (312) has a portion extending along the first preset direction and another portion extending along the second preset direction. The second component segment (312) and a portion of the first component segment (311) together form the inner cavity of the second threshold beam (302). The inner cavity of the first threshold beam (301) is connected to the inner cavity of the second threshold beam (302). At least one of the first component segment (311) and the second component segment (312) is provided with the first electrophoresis hole (300), and at least one of the first threshold beam inner cavity (301) and the second threshold beam inner cavity (302) is connected to the first cavity (100) through the first electrophoresis hole (300).

6. The vehicle door sill assembly according to claim 5, characterized in that, The first threshold beam inner cavity (301) and the second threshold beam inner cavity (302) are arranged sequentially along the first preset direction.

7. The vehicle door sill assembly according to claim 5, characterized in that, The threshold beam (31) is at least two, and the at least two threshold beams (31) are arranged side by side along the width direction of the threshold beam (31), and / or the at least two threshold beams (31) are arranged with the same or different dimensions.

8. The vehicle door sill assembly according to claim 7, characterized in that, There are at least two threshold beams (31), and a drainage channel (33) is formed between two adjacent threshold beams (31) and the mounting bracket (32).

9. The vehicle door sill assembly according to any one of claims 5-8, characterized in that, The bottom of the threshold beam (31) is positioned at a distance from the bottom of the first cavity (100).

10. A vehicle, characterized in that, The vehicle has a vehicle door sill assembly, which is the same as any one of claims 1-9.

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