A threshold structure for new energy vehicles

Abstract

This invention discloses a door sill structure for new energy vehicles, including an outer door sill plate, an inner door sill plate, and a door sill aluminum profile disposed between the outer and inner door sill plates. It also includes a door sill partition, which is located between the outer and inner door sill plates and is welded to both. The partition is also riveted to the door sill aluminum profile. This new energy vehicle door sill structure is rationally designed. The welding and riveting surfaces of the partition are located at the upper and lower ends of the partition, respectively connecting the inner and outer door sill plates and the inner door sill aluminum profile. When the door sill is subjected to a Z-axis force, the force is transferred to the aluminum profile through the partition. This structure makes the load transfer of the door sill and its internal structure more rational and the load distribution more uniform, effectively improving the door sill support and load-bearing performance of new energy vehicles.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, and in particular to a door sill structure for new energy vehicles. Background Technology

[0002] The vehicle door sill is an important component of the vehicle body structure. It consists of an outer sill plate, an inner sill plate, and a reinforcing sill plate, and plays a role in load-bearing, collision energy absorption, and support.

[0003] Traditional gasoline vehicles are relatively lighter than new energy vehicles. As described in patent authorization announcement numbers CN 202743337U and CN202783438U, a partition designed along the inner and outer sill envelope is added in sections within the cavity composed of the outer sill plate and the inner sill plate to meet the requirements of load-bearing, collision energy absorption and support performance.

[0004] New energy vehicles have a significantly increased overall weight, so aluminum profiles are added to the door sill cavity to meet collision performance requirements. The new aluminum profiles are located in the middle of the door sill cross section, which breaks the classic structure of the door sill of traditional gasoline vehicles where the upper and lower sections are connected. The aluminum profiles themselves have poor Z-direction load-bearing capacity for the door sill, which makes the load-bearing and support performance of the car door sill worse. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a door sill structure for new energy vehicles, which can effectively improve the load-bearing capacity of door sills in new energy vehicles.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] The new energy vehicle door sill structure includes an outer door sill plate, an inner door sill plate, and a door sill aluminum profile disposed between the outer door sill plate and the inner door sill plate. It also includes a door sill partition, which is disposed between the outer door sill plate and the inner door sill plate. The door sill partition is welded to the outer door sill plate and the inner door sill plate, and the door sill partition is riveted to the door sill aluminum profile.

[0008] Further:

[0009] The upper end of the threshold partition is connected to the threshold aluminum profile, and the lower end of the threshold partition is connected to the outer threshold panel and the inner threshold panel.

[0010] The vertical cross-section of the threshold partition is L-shaped.

[0011] The threshold partition is a steel plate structure.

[0012] The threshold partition is provided with a threshold partition reinforcing rib in the middle part, and the two sides of the threshold partition are side planes. The threshold partition reinforcing rib and the side plane are connected by the threshold partition reinforcing rib transition surface.

[0013] The upper end of the threshold partition is provided with a bending surface, which forms the riveting surface of the threshold partition, and the riveting surface of the threshold partition overlaps with the threshold aluminum profile.

[0014] The threshold partition reinforcing rib is a reinforcing structure formed by the concave structure on the threshold partition.

[0015] The sill plate is connected to the sill aluminum profile by a set of rivets.

[0016] The sill aluminum profile is located above the sill partition, and the sill partition riveting surface is located at the top of the sill partition and riveted to the sill aluminum profile.

[0017] The concave structure on the door sill plate is positioned facing the front of the car door sill.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The new energy vehicle door sill structure is reasonably designed. The welding and riveting surfaces of the door sill partition are located at the upper and lower ends of the door sill partition, respectively connecting the inner and outer panels of the door sill and the inner aluminum profile of the door sill. When the door sill is subjected to Z-axis force, the force is transferred to the aluminum profile through the door sill partition. This structure makes the load transfer of the door sill and internal structure more reasonable and the load force distribution more uniform, which can effectively improve the door sill support and load-bearing performance of new energy vehicles. Attached Figure Description

[0020] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0021] Figure 1 This is a schematic diagram of the threshold structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the threshold partition structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the spot welding area of ​​the present invention.

[0024] Figure 4 This is a schematic diagram of the riveting area of ​​the present invention.

[0025] In the picture:

[0026] 1-1. Threshold partition; 1-2. Threshold outer panel; 1-3. Threshold inner panel; 1-4. Aluminum profile; 2-1. Threshold partition welding surface; 2-2. Threshold partition reinforcing rib; 2-3. Threshold partition reinforcing rib transition surface; 2-4. Threshold partition plane; 2-5. Threshold partition riveting surface; 3-1. Spot welding area; 4-1. Riveting area. Detailed Implementation

[0027] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and through the description of the examples.

[0028] like Figures 1 to 4 As shown, the new energy vehicle door sill structure includes an outer door sill plate 1-2, an inner door sill plate 1-3, a door sill aluminum profile 1-4, and a door sill partition 1-1; the outer door sill plate and the inner door sill plate are welded together to form a door sill cavity structure, and the door sill aluminum profile and door sill partition are both located inside the door sill cavity structure.

[0029] The threshold partition is located between the outer threshold panel and the inner threshold panel. The threshold partition is welded to both the outer and inner threshold panels and riveted to the threshold aluminum profile.

[0030] The outer sill plate, inner sill plate, and sill partition are all made of high-strength steel plate and are formed by stamping. The upper end of the sill partition is connected to the aluminum profile of the sill, and the lower end of the sill partition is spot-welded to the outer sill plate and inner sill plate. The lower end of the sill partition forms the sill partition welding surface 2-1. The number of spot welds in the spot welding area 3-1 can be allocated according to the spacing between the weld points. In principle, the spacing between the weld points is controlled at 40mm.

[0031] The middle part of the threshold partition is provided with a threshold partition reinforcing rib 2-2, which strengthens the structural performance of the threshold partition itself; the two sides of the threshold partition are side planes, which are threshold partition planes 2-4, and the threshold partition reinforcing ribs and side planes are connected by threshold partition reinforcing rib transition surfaces 2-3.

[0032] The vertical cross-section of the threshold partition is L-shaped; specifically, the upper end of the threshold partition has a bent surface, which forms the riveting surface 2-5 of the threshold partition, and the riveting surface of the threshold partition overlaps with the threshold aluminum profile.

[0033] Preferably, the door sill plate reinforcing rib is a reinforcing structure formed by a concave structure on the door sill plate, with the concave structure on the door sill plate facing forward of the car door sill; the door sill aluminum profile is located above the door sill plate, and the door sill plate riveting surface is located at the top of the door sill plate and riveted to the door sill aluminum profile; the structure is stable and reliable, and can improve the support and load-bearing performance.

[0034] The sill plate is connected to the sill aluminum profile by a set of rivets; the number of rivets in the riveting area 4-1 can be allocated according to the spacing of the weld points. In principle, the spacing of the rivets should be controlled at about 40mm.

[0035] In this invention, the welding surface and riveting surface of the sill plate are located at the upper and lower ends of the sill plate, respectively connecting the inner and outer sill plates and the inner aluminum profile of the sill. When the sill is subjected to a Z-direction force, the force is transmitted to the aluminum profile through the sill plate. This structure makes the load transfer of the sill and internal structure more reasonable and the load force distribution more uniform, which can effectively improve the sill support and load-bearing performance of new energy vehicles.

[0036] The door sill plate structure should be positioned at the center point of the assembly lifting fixture and jacks to achieve optimal reinforcement. The door sill plate structure can be adjusted forward and backward according to the position of the assembly lifting fixture and jacks for different vehicle models, demonstrating good applicability. Especially in platform vehicle development, this door sill plate structure can be reused, reducing mold development and lowering development costs.

[0037] The above description is merely an illustration of preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0038] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the concept and technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A new energy vehicle threshold structure, comprising a threshold outer plate, a threshold inner plate and a threshold aluminum profile arranged between the threshold outer plate and the threshold inner plate, characterized in that: The threshold partition plate is connected with the threshold outer plate and the threshold inner plate by welding, and is connected with the threshold aluminum profile by riveting; The middle part of the threshold partition plate is provided with a threshold partition plate reinforcing rib, and the two side edges of the threshold partition plate are side planes, and the threshold partition plate reinforcing rib and the side planes are connected through a threshold partition plate reinforcing rib transition surface; the threshold partition plate reinforcing rib is a reinforcing structure formed by a concave structure on the threshold partition plate; the concave structure on the threshold partition plate is arranged towards the front of the automobile threshold; The upper end of the threshold partition plate is connected with the threshold aluminum profile, and the lower end of the threshold partition plate is connected with the threshold outer plate and the threshold inner plate; the upper end of the threshold partition plate is provided with a bending surface, and the bending surface forms a threshold partition plate riveting surface which is overlapped with the threshold aluminum profile; the threshold partition plate riveting surface and the threshold aluminum profile are connected through a group of rivets; the threshold aluminum profile is located above the threshold partition plate, and the threshold partition plate riveting surface is located at the top of the threshold partition plate and is connected with the threshold aluminum profile by riveting; when the threshold is subjected to a Z-direction force, the force is transmitted to the aluminum profile through the threshold partition plate, and this structure makes the load transmission of the threshold and the internal structure more reasonable, the load force distribution more uniform, and the support load-bearing performance of the new energy automobile threshold improved.

2. The new energy vehicle threshold structure according to claim 1, characterized in that: The vertical section of the threshold partition plate is L-shaped.

3. The new energy vehicle threshold structure according to claim 1, characterized in that: The threshold partition plate is a steel plate structure.

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