A door sill assembly, a body assembly having the door sill assembly, and a platform-based and universal design method for the door sill assembly.

Abstract

This invention relates to the field of door sills, specifically a door sill assembly, a body assembly incorporating the door sill assembly, and a platform-based and universal design method for the door sill assembly. The assembly includes a door sill reinforcement plate, with a rear door sill connecting plate at its end. The door sill reinforcement plate and the rear door sill connecting plate are separate designs. In use, the rear door sill connecting plate is connected to the end of the door sill reinforcement plate. This invention discloses a door sill assembly. Because the door sill reinforcement plate and the rear door sill connecting plate are separate designs, it facilitates the reuse of the door sill assembly in different vehicle models. Furthermore, the reuse of the door sill reinforcement plate assembly improves production efficiency, reduces costs, and saves manpower. The door sill reinforcement plate itself can be modified and reused according to changes in wheelbase length. By reusing the door sill assembly, manpower is saved, and development and per-vehicle costs are reduced.

Description

Technical Field

[0001] This invention relates to the field of door sills, specifically a door sill assembly, a vehicle body assembly having the door sill assembly, and a platform-based and universal design method for the door sill assembly. Background Technology

[0002] As competition in the automotive market intensifies, the development and iteration cycle of car models is shortening, customers have increasingly higher requirements for perceived quality, and car prices are decreasing.

[0003] Therefore, vehicle models must be developed using a platform-based and universal approach to improve development efficiency, reduce initial development costs, and simultaneously enhance development quality.

[0004] Existing door sill assemblies are designed one-to-one, requiring a separate door sill assembly for each vehicle model. This design and manufacturing method results in high R&D costs, long development cycles, and an inability to make timely adjustments based on market feedback, thus failing to meet the needs of customized models.

[0005] Existing patent 2022106896775 - A CTB electric vehicle integrated body platform architecture and vehicle does not clearly solve the above-mentioned technical problems.

[0006] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing threshold assembly. Summary of the Invention

[0007] The purpose of this invention is to provide a highly versatile door sill assembly.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] A door sill assembly includes a door sill reinforcement plate, and a door sill rear connecting plate is provided at the end of the door sill reinforcement plate; the door sill reinforcement plate and the door sill rear connecting plate are designed separately; in use, the door sill rear connecting plate is connected to the end of the door sill reinforcement plate.

[0010] The threshold reinforcement plate is a roll-formed part.

[0011] The threshold reinforcement plate includes a reinforcement plate body, on which a reinforcement upper flange is provided; the reinforcement upper flange includes an end flange and a middle flange, the middle flange and the end flange are staggered; the two ends of the middle flange are respectively connected to the end flange through a reinforcing flange.

[0012] The rear connecting plate of the threshold includes a connecting plate body, and the connecting plate body is provided with a plate body flange; the plate body flange includes a main flange, and the end of the main flange is provided with an overlapping flange, and the overlapping flange and the main flange are staggered; the main flange overlaps with the reinforcing upper flange through the overlapping flange.

[0013] The side of the connecting plate is provided with a positioning flange.

[0014] A vehicle body assembly includes a rear wheel arch outer panel, a B-pillar assembly, an A-pillar assembly, a side panel, and a door sill assembly; the rear wheel arch outer panel and the A-pillar assembly are connected to both ends of the door sill assembly; the B-pillar assembly overlaps the middle region of the door sill assembly; and the side panel is connected to the door sill assembly, the rear wheel arch outer panel, the B-pillar assembly, and the A-pillar assembly.

[0015] The rear wheel arch outer panel includes a wheel arch body, on which a wheel arch flange is provided. The main flange of the panel flange overlaps the wheel arch flange. The wheel arch flange includes a main wheel arch flange and a wheel arch overlap edge. The wheel arch overlap edge and the main wheel arch flange are staggered. The main flange overlaps the wheel arch overlap edge.

[0016] A platform-based and universal design method for a door sill assembly based on the aforementioned vehicle body assembly, the design method comprising the following steps:

[0017] Step 1: Match the rear wheel arch outer panel with the rear door sill connecting plate;

[0018] Step 2: Match the A-pillar assembly with the door sill reinforcement plate;

[0019] Step 3: Match the B-pillar assembly with the door sill reinforcement plate;

[0020] Step 4: After completing Step 3, the platform-based universal design of the threshold assembly is complete.

[0021] Step 1 requires that, based on the end position of the stop edge on the rear connecting plate of the door sill, the lock body arrangement position of the target vehicle model be adjusted and extended; to ensure that the stop edge of the rear door is the same as the stop edge on the rear connecting plate of the door sill.

[0022] When matching the B-pillar assembly with the sill reinforcement plate, it is required that the step d at the corner of the B-pillar reinforcement plate in the B-pillar assembly, where the outer side panel matches the sill reinforcement plate and the inner sill panel, be ≤15mm.

[0023] The advantages of this invention are:

[0024] This invention discloses a door sill assembly, a body assembly having the door sill assembly, and a platform-based and universal design method for the door sill assembly.

[0025] This invention discloses a door sill assembly; the door sill reinforcement plate and the rear door sill connecting plate are separate designs, which facilitates the reuse of the door sill assembly in different vehicle models.

[0026] In addition, the door sill reinforcement plate assembly of this invention is reused, which improves production efficiency, reduces costs, and saves manpower; the rear connecting plate of the door sill is also reused, and the door sill reinforcement plate body can be modified and reused according to the wheelbase length; by using the door sill assembly, manpower is saved and development costs and per-vehicle costs are reduced. Attached Figure Description

[0027] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0028] Figure 1 This is a front view of the threshold reinforcement plate in this invention.

[0029] Figure 2 This is a rear view of the threshold reinforcement plate in this invention.

[0030] Figure 3 This is a schematic diagram of the structure when the door sill reinforcement plate and the rear wheel arch outer plate are matched in this invention.

[0031] Figure 4 This is a schematic diagram of the structure when the threshold reinforcement plate is matched with adjacent components in this invention.

[0032] Figure 5 This is a schematic diagram illustrating the fit between the sill reinforcement plate and the inner sill plate in this invention.

[0033] Figure 6 This is a schematic diagram illustrating the relationship between the door sill assembly and the inner B-pillar panel in this invention.

[0034] Figure 7 This is a schematic diagram illustrating the relationship between the door sill assembly and the side panel in this invention.

[0035] Figure 8 for Figure 7 A cross-sectional view along AA.

[0036] The markings in the above figures are all:

[0037] 1. Door sill assembly; 11. Door sill reinforcement plate; 12. Rear door sill connecting plate. Detailed Implementation

[0038] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.

[0039] A door sill assembly 1 includes a door sill reinforcement plate 11, and a door sill rear connecting plate 12 is provided at the end of the door sill reinforcement plate 11; the door sill reinforcement plate 11 and the door sill rear connecting plate 12 are designed separately; in use, the door sill rear connecting plate 12 is connected to the end of the door sill reinforcement plate 11; the present invention discloses a door sill assembly 1; because the door sill reinforcement plate 11 and the door sill rear connecting plate 12 are designed separately, it is convenient for the door sill assembly 1 to be used in different vehicle models.

[0040] In addition, the door sill reinforcement plate 11 assembly of the present invention is reused, which improves production efficiency, reduces costs, and saves manpower; the door sill rear connecting plate 12 is reused, and the door sill reinforcement plate 11 body can be modified and reused according to the wheelbase length; by using the door sill assembly 1, manpower is saved and development costs and per-vehicle costs are reduced.

[0041] Specifically, the sill assembly 1 disclosed in this invention mainly includes a sill reinforcement plate 11, and a sill rear connecting plate 12 is provided at the end of the sill reinforcement plate 11; the sill reinforcement plate 11 and the sill rear connecting plate 12 are designed separately; in other words, the sill reinforcement plate 11 disclosed in this invention is assembled from two parts, which facilitates the subsequent production and processing of the sill reinforcement plate 11.

[0042] In addition, in subsequent platform design, after the rear connecting plate 12 of the door sill is reused, the door sill reinforcement plate 11 can be selected with different lengths as needed, so as to realize the use of door sill assembly 1 on different wheelbase models.

[0043] Furthermore, the sill reinforcement plate 11 described in this invention is a roll-formed part; in this invention, the sill reinforcement plate 11 is a roll-formed part, and the length of the sill reinforcement plate 11 can be freely selected in subsequent selection, so as to more easily achieve a combination of a new sill assembly 1 without opening a new mold, so as to realize the reuse or common use of the sill assembly 1; traditional sill reinforcement plates 11 are mostly stamped parts, and the sill reinforcement plate 11 cannot be lengthened, resulting in poor versatility.

[0044] Furthermore, in this invention, the threshold reinforcement plate 11 includes a reinforcement plate body 111, on which a reinforcing upper flange 112 is provided; simultaneously, a reinforcing lower flange is provided below the reinforcement plate body 111; the reinforcement plate body 111 includes a longitudinal plate, and an end plate is provided at each end of the longitudinal plate, the end plate being intersected with the longitudinal plate. Based on the above design, the vertical cross-section of the threshold reinforcement plate 11 in this invention is Z-shaped, and the vertical cross-section of the inner threshold plate 7 is also Z-shaped. The threshold reinforcement plate 11 and the inner threshold plate 7 are arranged opposite to each other. Based on this arrangement, the threshold assembly 1 forms an internal hollow structure, which effectively ensures the structural strength of the threshold assembly 1.

[0045] Furthermore, the reinforced upper flange 112 in this invention includes an end flange 1122 and a middle flange 1121, wherein the middle flange 1121 and the end flange 1122 are staggered; the two ends of the middle flange 1121 are respectively connected to the end flange 1122 by reinforcing flanges 1123; based on this arrangement, the middle flange 1121 and the end flange 1122 form a stepped platform, which not only ensures the strength of the reinforced upper flange 112 during subsequent use, but also plays a good positioning role, ensuring the flatness of the connection between the sill reinforcement plate 11 and the B-pillar reinforcement plate 6 after the B-pillar reinforcement plate 6 is overlapped, thereby facilitating the fit of the side outer panel 9 at the connection between the reinforced upper flange 112 and the B-pillar reinforcement plate 6 during subsequent installation, and avoiding the problem of excessive gap between the side outer panel 9 and the connection between the reinforced upper flange 112 and the B-pillar reinforcement plate 6.

[0046] Furthermore, in this invention, the rear connecting plate 12 of the threshold includes a connecting plate body 121, on which a plate flange 122 is provided; the plate flange 122 includes a main flange, and an overlapping flange 1221 is provided at the end of the main flange, the overlapping flange 1221 being staggered from the main flange; the main flange is connected to the overlapping flange 1221 through a transition flange. Based on the above design, the plate flange 122 disclosed in this invention is essentially a step plate, which will be used subsequently... In use, the main body flange overlaps with the reinforcing upper flange 112 through the overlapping flange 1221. Based on this setting, the flatness of the overlap between the panel flange 122 and the reinforcing upper flange 112 is facilitated, and the large gap between the flange of the side outer panel 9 and the connection between the panel flange 122 and the reinforcing upper flange 112 is avoided when the flange of the side outer panel 9 is attached to the overlap between the panel flange 122 and the reinforcing upper flange 112 due to the protrusion at the overlap between the panel flange 122 and the reinforcing upper flange 112.

[0047] In addition, a positioning flange 124 is provided on the side of the connecting plate 121; in the present invention, when the positioning flange 124 is used later, the positioning flange 124 presses against the rear wheel cover outer plate 4, which facilitates the X-direction positioning of the sill assembly 1 and the rear wheel cover outer plate 4.

[0048] A vehicle body assembly includes a rear wheel arch outer panel 4, a B-pillar assembly, an A-pillar assembly, a side panel 9, and a sill assembly 1. The rear wheel arch outer panel 4 and the A-pillar assembly are connected to both ends of the sill assembly 1. The B-pillar assembly overlaps the middle region of the sill assembly 1. The side panel 9 is connected to the sill assembly 1, the rear wheel arch outer panel 4, the B-pillar assembly, and the A-pillar assembly. The rear wheel arch outer panel 4, the B-pillar assembly, the A-pillar assembly, the side panel 9, and the sill assembly 1 combine to form the main structure of the side panel assembly, ensuring the structural strength of the side panel assembly.

[0049] Furthermore, in this invention, the rear wheel cover outer plate 4 includes a wheel cover body 4-1, on which a wheel cover flange 4-2 is provided. The main flange of the plate flange 122 overlaps on the wheel cover flange 4-2. The wheel cover flange 4-2 includes a main wheel cover flange and a wheel cover overlapping edge. The wheel cover overlapping edge and the main wheel cover flange are staggered. The main wheel cover flange is connected to the wheel cover overlapping plate, and the main flange overlaps on the wheel cover overlapping edge. In actual use, the wheel cover in the rear wheel cover body 4-1 is required to... The outermost plane of the main flange is the same plane as the outer side of the main flange in the connecting plate 12 at the rear of the sill. Essentially, this means that the flatness of the overlap between the wheel cover flange 4-2 on the wheel cover body 4-1 and the main flange in the connecting plate 12 at the rear of the sill is required to ensure that the wheel cover flange 4-2 and the main flange are arranged flush. This avoids the need for flatness at the joint when the flange on the outer side panel 9 is attached to the connection between the wheel cover main flange and the main flange during subsequent use, and avoids the formation of a large assembly gap at the joint.

[0050] A platform-based and universal design method for the door sill assembly 1 based on the aforementioned vehicle body assembly, the design method comprising the following steps:

[0051] Step 1: Match the rear wheel arch outer panel 4 with the rear door sill connecting plate 12;

[0052] Step 2: Match the A-pillar assembly with the door sill reinforcement plate 11;

[0053] Step 3: Match the B-pillar assembly with the door sill reinforcement plate 11;

[0054] Step 4: After completing Step 3, the platform-based general design of Threshold Assembly 1 is complete.

[0055] This invention redesigns the various components connected to the existing door sill assembly 1 during the design process, thereby enabling the design of the side panel assembly of a new vehicle without requiring a complete redesign of the door sill assembly 1; thus achieving a platform-based universal design for the door sill assembly 1.

[0056] In step 1 of this invention, it is required that, based on the end position of the stop edge 123 on the rear connecting plate of the sill, the arrangement position of the lock 3 body of the target vehicle model is adjusted and extended; to ensure that the stop edge of the rear door is the same as the stop edge 123 on the rear connecting plate of the sill; specifically, through the preliminary model analysis of CAE, the end position of the stop edge of the rear connecting plate 12 is determined. At this time, by comparing with the stop edge of the target vehicle model, the arrangement angle of the lock 3 is adjusted to ensure that the end position of the stop edge of the rear door is the same as the shape of the main body flange on the rear connecting plate 12 of the sill of this invention in the direction of the front of the vehicle, thus fulfilling the first condition requirement of extending the rear connecting plate 12 of the sill.

[0057] In addition, in this invention, when matching the B-pillar assembly with the sill reinforcement plate 11, it is required that the step d at the corner of the B-pillar reinforcement plate 6 in the B-pillar assembly, where the outer side panel 9 matches the sill reinforcement plate 11 and the inner sill panel 7, is ≤15mm. By limiting the size at this point, it is convenient to use with the sealing strip 10, and it is avoided that the size at this point is too large and affects the connection between the sealing strip 10 and the point, thereby avoiding the sealing performance of the sealing strip 10 being too large.

[0058] specific:

[0059] The door sill assembly 1 disclosed in this invention mainly includes a door sill reinforcement plate 11 and a door sill rear connecting plate 12.

[0060] The threshold reinforcement plate 11 is a roll-formed part.

[0061] The threshold reinforcement plate 11 includes a reinforcement plate body 111, and the reinforcement plate body 111 is provided with a reinforcing upper flange 112; the reinforcing upper flange 112 includes an end flange 1122 and a middle flange 1121, and the middle flange 1121 and the end flange 1122 are staggered; the two ends of the middle flange 1121 are respectively connected to the end flange 1122 through a reinforcing flange 1123.

[0062] The rear connecting plate 12 of the threshold includes a connecting plate body 121, and a plate flange 122 is provided on the connecting plate body 121; the plate flange 122 includes a main flange, and an overlapping flange 1221 is provided at the end of the main flange, and the overlapping flange 1221 is staggered with the main flange; the main flange overlaps with the reinforcing upper flange 112 through the overlapping flange 1221.

[0063] The side of the connecting plate 121 is provided with a positioning flange 124.

[0064] The rear wheel arch outer panel 4 includes a wheel arch body 4-1, on which a wheel arch flange 4-2 is provided. The main flange of the panel flange 122 overlaps on the wheel arch flange 4-2. The wheel arch flange 4-2 includes a main wheel arch flange and a wheel arch overlap edge. The wheel arch overlap edge and the main wheel arch flange are staggered. The main flange overlaps on the wheel arch overlap edge.

[0065] The A-pillar assembly includes a lower A-pillar reinforcement plate 5, and the end of the lower A-pillar reinforcement plate 5 is provided with a matching structure 5-1 for the sill reinforcement plate.

[0066] B-pillar reinforcement plate 6, sill inner plate 7, B-pillar inner plate 8, side outer plate 9, sealing strip 10, and sill inner reinforcement plate.

[0067] The specific implementation method is as follows:

[0068] The inner sill plate 7 is mostly a platform component, while the sill reinforcement plate 11 and the inner sill plate 7 are mutually compatible structures.

[0069] The rear connecting plate 12 of the threshold involves the edge of the door opening. Since the edge of the door opening is related to the shape, it is very difficult to use it. Therefore, the threshold reinforcement plate 11 is relatively simple to use.

[0070] Method for connecting plate 12 at the rear of the door sill:

[0071] First, through preliminary CAE model analysis, the endpoint position of the stop edge of the rear connecting plate 12 of the door sill is determined. Then, by comparing with the stop edge of the target vehicle model, the arrangement angle of lock 3 is adjusted to ensure that the endpoint position of the stop edge of the rear door is completely identical towards the front of the vehicle (e.g., ...). Figure 1 As shown), the first condition for completing the connecting plate 12 at the rear of the threshold is met;

[0072] Then, a feature is made on the outer panel 4 of the rear wheel arch to match the connecting plate 12 at the rear of the door sill, so as to achieve connection. At the same time, the matching surface of the outer panel 4 of the rear wheel arch and the connecting plate 12 at the rear of the door sill or the outer panel 9 of the side wall matches the connecting plate 12 at the rear of the door sill, so as to achieve connection. The side of the connecting plate 121 is provided with a positioning flange 124. The positioning flange 124 can be a single piece of the wheel arch body 4-1, or it can be implemented in other ways.

[0073] The method of using the door sill reinforcement plate 11 is as follows:

[0074] The main body of the door sill remains unchanged by adjusting the matching of the A-pillar reinforcement plate 5 and the door sill reinforcement plate 11. At the same time, the boundary 6-1 of the B-pillar reinforcement plate 6 matching the door sill reinforcement plate is adjusted to ensure that the B-pillar reinforcement plate 6 remains unchanged.

[0075] The matching boundary 7-1 of the inner sill plate 7 and the inner B-pillar plate 8 with the sill reinforcement plate matches the boundary 6-1 of the B-pillar reinforcement plate 6 and the boundary of the sill reinforcement plate 11.

[0076] By adjusting R1 and R2 of the B-pillar reinforcement plate 6, the step d at the matching point between the outer side panel 9 and the sill reinforcement plate 11 and the inner sill plate 7 is adjusted to be ≤15mm (e.g., Figure 5 (as shown), in order to ensure the airtightness of the entire vehicle.

[0077] To ensure that the d value meets the requirements, it is also possible to adjust it by trimming the sill reinforcement plate 11 instead of adjusting R1 and R2. The disadvantage of this approach is that it affects the material utilization rate of the sill reinforcement plate 11.

[0078] The mating structure between the sealing strip 10 and the outer side panel 9 ensures a seamless seal (e.g., Figure 7 (as shown);

[0079] To meet performance requirements, the sill reinforcement plate 11 is generally further reinforced with internal structures (such as...). Figure 8As shown in the figure, different combinations of parts are required depending on different performance requirements.

[0080] When the wheelbase of a vehicle changes, causing the door sill reinforcement plate 11 assembly to be unusable as a whole, the rear door sill connecting plate 12 can be moved a certain distance forward and backward along the entire vehicle by lowering it. This allows for the reuse of the rear door sill connecting plate 12, thus enabling its continued use.

[0081] When the wheelbase changes, the position of the B-pillar may also change. This changes the position of component 1-1, which is matched with the B-pillar. The position of 1-1 can be adjusted by changing the length of the door sill to meet the matching requirements, thus achieving a new assembly without creating new molds. If the door sill reinforcement plate 11 is a stamped part, the door sill can be shortened but cannot be lengthened. However, nowadays door sills are mostly rolled parts, allowing for free selection of the door sill length. This makes it easier to achieve a new part combination without creating new molds, enabling shared use.

[0082] The overall matching method is as follows:

[0083] By adjusting the arrangement of the rear door lock 3, the door opening stop within the range of the connecting plate 12 at the rear of the door sill of several models is the same.

[0084] By trimming and adjusting the B-pillar reinforcement plate 6 and the inner B-pillar plate 8, ensure that the matching steps of the B-pillar are identical.

[0085] When adjusting the B-pillar reinforcement plate 6 and the B-pillar inner plate 8, it is necessary to ensure the seal at the R-corner.

[0086] The assembly can be reused by adjusting the matching surface between the outer wheel arch panel and the rear connecting plate 12 of the door sill.

[0087] Obviously, the specific implementation of this invention is not limited to the above-described methods. Any non-substantial improvements made using the inventive concept and technical solution of this invention are within the protection scope of this invention.

Claims

1. A platform-based and universal design method for a door sill assembly, characterized in that; The aforementioned platform-based and universal design method for the door sill assembly is based on the vehicle body assembly; The vehicle body assembly includes a rear wheel arch outer panel, a B-pillar assembly, an A-pillar assembly, a side panel outer panel, and a sill assembly; the rear wheel arch outer panel and the A-pillar assembly are connected to both ends of the sill assembly; the B-pillar assembly overlaps the middle area of ​​the sill assembly; the side panel outer panel is connected to the sill assembly, the rear wheel arch outer panel, the B-pillar assembly, and the A-pillar assembly; The sill assembly includes a sill reinforcement plate, and a sill rear connecting plate is provided at the end of the sill reinforcement plate; the sill reinforcement plate and the sill rear connecting plate are designed separately; in use, the sill rear connecting plate is connected to the end of the sill reinforcement plate; The threshold reinforcement plate is a roll-formed part; The design method includes the following steps: Step 1: Match the rear wheel arch outer panel with the rear door sill connecting plate; The requirement is to first adjust the lock body layout of the target vehicle model based on the end position of the stop edge on the rear connecting plate of the door sill, and then ensure that the stop edge of the rear door is the same as the stop edge on the rear connecting plate of the door sill. Step 2: Match the A-pillar assembly with the door sill reinforcement plate; Step 3: Match the B-pillar assembly with the sill reinforcement plate; the step d at the corner of the B-pillar reinforcement plate in the B-pillar assembly, where the outer side panel matches the sill reinforcement plate and the inner sill panel, must be ≤15mm. Step 4: After completing Step 3, the platform-based universal design of the threshold assembly is complete.

2. The platform-based and universal design method for a threshold assembly according to claim 1, characterized in that, The threshold reinforcement plate includes a reinforcement plate body, on which a reinforcement upper flange is provided; the reinforcement upper flange includes an end flange and a middle flange, the middle flange and the end flange are staggered; the two ends of the middle flange are respectively connected to the end flange through a reinforcing flange.

3. The platform-based and universal design method for a threshold assembly according to claim 2, characterized in that, The rear connecting plate of the threshold includes a connecting plate body, and the connecting plate body is provided with a plate body flange; the plate body flange includes a main flange, and the end of the main flange is provided with an overlapping flange, and the overlapping flange and the main flange are staggered; the main flange overlaps with the reinforcing upper flange through the overlapping flange.

4. The platform-based and universal design method for a threshold assembly according to claim 3, characterized in that, The side of the connecting plate is provided with a positioning flange.

5. The platform-based and universal design method for a threshold assembly according to claim 3, characterized in that, The rear wheel arch outer panel includes a wheel arch body, on which a wheel arch flange is provided. The main flange of the panel flange overlaps the wheel arch flange. The wheel arch flange includes a main wheel arch flange and a wheel arch overlap edge. The wheel arch overlap edge and the main wheel arch flange are staggered. The main flange overlaps the wheel arch overlap edge.

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