A new vehicle rocker structure

CN224766840UActive Publication Date: 2026-09-18WUHAN JIANGXIA CHUNENG AUTOMOBILE TECHNOLOGY R&D CO LTD
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Patent Information

Application Number
CN202522423801.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-14
Publication Date
2026-09-18
Estimated Expiration
2035-11-14

AI Technical Summary

Technical Problem

[0002]在汽车生产以及维护过程中,举托汽车是常见的工况,在该工况下,当面对宽平台窄车身时,若在不改变门槛截面情况下,则需要更改举升平台等工装夹具,安装过程中,由于需要将安装支架与门槛本体进行连接,若不改变门槛结构,则需要在极限位置开孔,影响门槛梁刚度,增加工艺制造难度;若共用举升平台则需要重新设计门槛开模,成本高

Benefits of technology

1、门槛本体上承力部的具体结构设计,使得举升车体过程中无需更改举升平台,适应性强,且不影响门槛本体的刚度;另外,提高了对车身宽窄的适应范围;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a novel vehicle door threshold structure, including door sill body, the door sill body includes force -bearing part, the internal angle alpha that constitutes between the first outer side wall of force -bearing part with the bottom end surface of force -bearing part is less than 90 degrees, the internal angle beta that constitutes between the first inner side wall of force -bearing part with the bottom end surface of force -bearing part is less than 90 degrees, the bottom end surface of force -bearing part is set up and is equipped with mounting hole for same lifting platform connection. Its beneficial effect is: the specific structure design of force -bearing part on door sill body makes in the process of lifting car body not to need to change lifting platform, and the adaptability is strong, and does not influence the stiffness of door sill body, in addition, has improved the adaptation range to the width of car body.
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Description

Technical Field

[0001] This utility model relates to the field of automotive body technology, specifically a novel vehicle door sill structure. Background Technology

[0002] Lifting cars is a common operation in automobile production and maintenance. In this situation, when faced with a wide platform and a narrow car body, if the door sill cross-section is not changed, the lifting platform and other tooling fixtures need to be modified. During installation, since the mounting bracket needs to be connected to the door sill body, if the door sill structure is not changed, holes need to be drilled at the extreme positions, which affects the rigidity of the door sill beam and increases the difficulty of manufacturing. If the lifting platform is shared, the door sill mold needs to be redesigned, which is costly. Utility Model Content This utility model addresses the technical problems existing in the prior art by providing a novel vehicle door sill structure.

[0003] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a novel vehicle door sill structure, including a door sill body; The threshold body includes a load-bearing part, wherein the interior angle α formed between the first outer side wall of the load-bearing part and the bottom end face of the load-bearing part is less than 90 degrees, and the interior angle β formed between the first inner side wall of the load-bearing part and the bottom end face of the load-bearing part is less than 90 degrees. The bottom surface of the load-bearing part is provided with a mounting hole for connection with the lifting platform.

[0004] As a further technical solution, the horizontal distance between the bottom point of the first inner sidewall and the outer wall of the battery pack frame is greater than or equal to 20mm.

[0005] As a further technical solution, the threshold body is made of aluminum alloy.

[0006] As a further technical solution, the longitudinal section structure of the sill body is of type 7, and the end of the horizontal side of type 7 is connected to the vehicle body crossbeam, and the lower end surface of the vertical side of type 7 is provided with a lifting support point. The threshold body has a hollow structure.

[0007] As a further technical solution, the threshold body also includes a second outer side wall, a third outer side wall, a second inner side wall, a third inner side wall, a fourth inner side wall, and a fifth inner side wall connected in sequence. The end of the second outer sidewall that is away from the third outer sidewall is connected to the first outer sidewall, and the end of the fifth inner sidewall that is away from the fourth inner sidewall is connected to the first inner sidewall. The cross-sectional structure enclosed by the bottom end face, the first outer sidewall, the second outer sidewall, the third outer sidewall, the second inner sidewall, the third inner sidewall, the fourth inner sidewall, the fifth inner sidewall, and the first inner sidewall is of type 7. The battery pack frame is installed on the fourth inner sidewall.

[0008] As a further technical solution, it also includes a first horizontal plate, a second horizontal plate, a third horizontal plate, and a first vertical plate disposed within the threshold body; The first horizontal plate, the second horizontal plate, and the third horizontal plate are arranged in parallel intervals to divide the interior of the threshold body into four cavities from top to bottom; The first horizontal plate is connected to the third inner sidewall and the first vertical plate at both ends, respectively; one end of the second horizontal plate is connected to the upper end of the fifth inner sidewall, and the other end of the second horizontal plate is connected to the second outer sidewall; one end of the third horizontal plate is connected to the lower end of the fifth inner sidewall, and the other end of the third horizontal plate is connected to the lower end of the second outer sidewall. One end of the first vertical plate is connected to the third outer side wall, and the other end of the first vertical plate is connected to the second horizontal plate.

[0009] As a further technical solution, the end of the first vertical plate away from the third outer side wall extends to the lower part of the threshold body to connect with the third horizontal plate.

[0010] As a further technical solution, it also includes a second vertical plate disposed in the threshold body, one end of the second vertical plate being connected to the second inner sidewall and the other end being connected to the junction of the fourth inner sidewall and the fifth inner sidewall; The first horizontal plate passes through the second vertical plate and then connects to the first vertical plate.

[0011] As a further technical solution, a reinforcing plate is also provided inside the threshold body, one end of which is connected to the second inner sidewall, and the other end of which is connected to the second horizontal plate.

[0012] The beneficial effects of this utility model are: 1. The specific structural design of the load-bearing part on the door sill body allows the lifting platform to be changed without changing it during the lifting process, making it highly adaptable and not affecting the rigidity of the door sill body; in addition, it improves the adaptability to vehicle width. 2. The horizontal distance between the bottom point of the first outer side wall and the battery pack frame provides an operating boundary for the lifting equipment, effectively preventing damage to the battery due to errors during installation; 3. The door sill body is made of aluminum alloy, which makes the door sill body lightweight and thus reduces the overall weight of the vehicle. In addition, the use of this material makes it easy to process and construct. 4. The design of the first vertical plate, first horizontal plate, reinforcing plate and other structures in the sill body divides the interior of the sill body into several cavity structures, which can provide higher strength and energy absorption space. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a novel vehicle door sill structure with a battery pack frame installed, where the arrow indicates the direction of force transmission.

[0014] The attached diagram lists the components represented by each number as follows: Threshold body 1; Load-bearing part 11, first outer side wall 111, bottom end face 112, first inner side wall 113; Second outer side wall 12, third outer side wall 13, second inner side wall 14, third inner side wall 15, fourth inner side wall 16, fifth inner side wall 17; 2. Battery pack frame outer wall, 3. Body crossbeam, 4. First cross plate, 5. Second cross plate, 6. Third cross plate, 7. First vertical plate, 8. Second vertical plate, 9. Reinforcing plate. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0017] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0018] Example 1 See Figure 1 This embodiment provides a novel vehicle door sill structure, including a door sill body 1. The door sill body 1 includes a load-bearing portion 11. The interior angle α formed between the first outer side wall 111 of the load-bearing portion 11 and the bottom end face 112 of the load-bearing portion 11 is less than 90 degrees, and the interior angle β formed between the first inner side wall 113 of the load-bearing portion 11 and the bottom end face 112 of the load-bearing portion 11 is less than 90 degrees. A mounting hole (not shown in the figure) is provided on the bottom end face 112 of the load-bearing portion 11 for connection with a lifting platform. That is, the structural design of the load-bearing portion 11 improves the adaptability of the door sill body 1, eliminating the limitation of vehicle width.

[0019] It should be noted that the size of the inner angle between the first outer wall 111 and the bottom end face 112 of the load-bearing part 11 is determined by the width of the target lifting platform installation point, the distribution size of the mounting holes on the sill body 1, and the shape size of the mounting holes. This ensures that the mounting holes are always located on the bottom end face 112, facilitating adaptation to the lifting platform installation point. In other words, this structure increases the area of ​​the bottom end face 112, achieving compatibility with wide platform interfaces on narrow sills, satisfying "space minimization" and "interface universality". It eliminates the need to find suitable mounting hole positions for the installation platform or lifting platform on narrow sills, reducing the complexity of the production process.

[0020] In this embodiment, the structural design ensures that even when the width of the sill body 1 is narrowed or the vehicle width is reduced, the load-bearing part 11 has a sufficiently wide and effective mounting surface. This guarantees that all mounting holes on the lifting platform can be completely arranged, effectively reducing costs and achieving the versatility of the lifting platform. A large side skirt structure is formed at the lower part of the sill body 1, increasing the aesthetic appeal of the sill body 1 and providing an attachment base for exterior components.

[0021] It should be noted that the door sill body 1 is made of aluminum alloy. Using this material facilitates the processing and construction, and at the same time makes the door sill body 1 lightweight, thereby reducing the overall weight of the vehicle.

[0022] Furthermore, the horizontal distance H between the bottom point A of the first inner sidewall 113 and the outer wall 2 of the battery pack frame (i.e., the side closer to the outer side of the vehicle body) is greater than or equal to 20mm, which provides an operating boundary for the lifting equipment and effectively prevents damage to the battery due to errors during installation. In addition, this distance limit increases the distance from the battery pack to the outermost point of the sill body 1, increases the energy absorption space, and thus improves the safety performance during a collision.

[0023] See Figure 1 In the specific implementation process, the longitudinal section of the sill body 1 is shaped like a 7, and the end of the horizontal side of the 7 shape is connected to the vehicle body beam 3. The lower end face of the vertical side of the 7 shape is provided with a lifting support point; the sill body 1 is a hollow structure. This structural design can divide the sill body 1 into upper and lower parts. When the lower part is subjected to force, the force can be transmitted to the upper part and conducted inward.

[0024] Furthermore, the threshold body 1 also includes a second outer side wall 12, a third outer side wall 13, a second inner side wall 14, a third inner side wall 15, a fourth inner side wall 16, and a fifth inner side wall 17 connected in sequence; the end of the second outer side wall 12 facing away from the third outer side wall 13 is connected to the first outer side wall 111, and the end of the fifth inner side wall 17 facing away from the fourth inner side wall 16 is connected to the first inner side wall 113. The cross-sectional structure enclosed by the bottom end face 112, the first outer side wall 111, the second outer side wall 12, the third outer side wall 13, the second inner side wall 14, the third inner side wall 15, the fourth inner side wall 16, the fifth inner side wall 17, and the first inner side wall 113 is a type 7; a battery pack frame is installed on the fourth inner side wall 16.

[0025] It should be noted that the horizontal distance between the junction of the bottom end face 112 and the first inner sidewall 113 and the outer wall 2 of the battery pack frame mounted on the fourth inner sidewall 16 is greater than or equal to 20mm. Furthermore, to increase the operating space, the fifth inner sidewall 17 is inclined, that is, the upper part of the fifth inner sidewall 17 is inclined towards the fourth inner sidewall 16.

[0026] For example, the height of the top of the third inner wall 15 is higher than the height of the top of the second outer wall 12, the third outer wall 13 and the second inner wall 14 are both inclined, and the higher end of the third outer wall 13 is connected to the higher end of the second inner wall 14.

[0027] See Figure 1In the specific implementation process, it also includes a first horizontal plate 4, a second horizontal plate 5, a third horizontal plate 6, and a first vertical plate 7 disposed within the threshold body 1; the first horizontal plate 4, the second horizontal plate 5, and the third horizontal plate 6 are arranged in parallel intervals to divide the interior of the threshold body 1 into four cavities from top to bottom; the two ends of the first horizontal plate 4 are respectively connected to the third inner side wall 15 and the first vertical plate 7; one end of the second horizontal plate 5 is connected to the upper end of the fifth inner side wall 17, and the other end of the second horizontal plate 5 is connected to the second outer side wall 12; one end of the third horizontal plate 6 is connected to the lower end of the fifth inner side wall 17, and the other end of the third horizontal plate 6 is connected to the lower end of the second outer side wall 12; one end of the first vertical plate 7 is connected to the third outer side wall 13, and the other end of the first vertical plate 7 is connected to the second horizontal plate 5.

[0028] It should be noted that the fourth inner sidewall 16 and the second horizontal plate 5 are at the same horizontal height.

[0029] It should be noted that this structural design improves both the rigidity of the threshold body 1 and the energy absorption space of the threshold body 1.

[0030] Furthermore, the end of the first vertical plate 7 that is away from the third outer side wall 13 extends to the lower part of the threshold body 1 to connect with the third horizontal plate 6, which improves the load-bearing capacity of the lower part of the threshold body 1 and facilitates the transmission of the force from the lower part to the upper part during the lifting process.

[0031] See Figure 1 In the specific implementation process, this embodiment also includes a second vertical plate 8 disposed within the threshold body 1. One end of the second vertical plate 8 is connected to the second inner sidewall 14, and the other end is connected to the junction of the fourth inner sidewall 16 and the fifth inner sidewall 17. The first horizontal plate 4 passes through the second vertical plate 8 and is connected to the first vertical plate 7. That is, there is also a junction between the first horizontal plate 4 and the second vertical plate 8. At this time, the second vertical plate 8 can be regarded as two pieces, located at the upper and lower ends of the first horizontal plate 4 respectively, and connected through the first horizontal plate 4. Similarly, the first vertical plate 7 can also be regarded as two pieces, located at the upper and lower ends of the second horizontal plate 5 respectively. It should be noted that the threshold body 1 and the vertical plates and horizontal plates located within the threshold body 1 in this embodiment are integrally formed structures and are made of aluminum alloy material.

[0032] For example, when the sill body 1 is impacted by an external force, that is, when the second outer side wall 12 is impacted by an external force, the impact force is divided into two paths. One path is transmitted through the second horizontal plate 5, the second vertical plate 8, and the first horizontal plate 4 to the third inner side wall 15, and then to the vehicle body beam 3. The other path is transmitted through the third outer side wall 13 and the second inner side wall 14 to the third inner side wall 15, and then to the vehicle body beam 3. In this process, the first vertical plate 7 and the second vertical plate 8 at least have the function of supporting the entire shape of the sill body 1 to improve rigidity.

[0033] Furthermore, this embodiment also includes a reinforcing plate 9 disposed within the threshold body 1. One end of the reinforcing plate 9 is connected to the second inner sidewall 14, and the other end of the reinforcing plate 9 is connected to the second horizontal plate 5. This improves rigidity and increases the energy absorption space.

[0034] For example, the reinforcing plate 9 is inclined, and its upper part is inclined towards the vehicle body, which has a guiding effect on the transmission of force.

[0035] That is, the sill body 1 constructed in this embodiment has a structure containing 9 cavities, which increases the energy absorption space and allows the force to be transmitted to the vehicle body beam 3 along a predetermined path during a collision, thereby increasing the loss of force during the transmission process and reducing damage to the vehicle body.

[0036] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0037] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A novel vehicle rocker structure characterized by, Including the threshold body (1); The threshold body (1) includes a load-bearing part (11), the interior angle α formed between the first outer side wall (111) of the load-bearing part (11) and the bottom end face (112) of the load-bearing part (11) is less than 90 degrees, and the interior angle β formed between the first inner side wall (113) of the load-bearing part (11) and the bottom end face (112) of the load-bearing part (11) is less than 90 degrees; The bottom end face (112) of the load-bearing part (11) is provided with an installation hole for connection with the lifting platform.

2. The novel vehicle door sill structure according to claim 1, characterized in that, The distance between the bottom point of the first inner sidewall (113) and the outer wall (2) of the battery pack frame in the horizontal direction is greater than or equal to 20 mm.

3. A novel vehicle rocker structure as claimed in claim 1, wherein, The threshold body (1) is made of aluminum alloy.

4. A novel vehicle rocker structure according to claim 1, characterized in that, The longitudinal section structure of the sill body (1) is of type 7, and the end of the horizontal side of the type 7 is connected to the vehicle body beam (3). The lower end face of the vertical side of the type 7 is provided with a lifting support point. The threshold body (1) has a cavity structure.

5. A novel vehicle rocker structure according to claim 4, characterized in that, The threshold body (1) also includes a second outer side wall (12), a third outer side wall (13), a second inner side wall (14), a third inner side wall (15), a fourth inner side wall (16), and a fifth inner side wall (17) connected in sequence. The second outer sidewall (12) is connected to the first outer sidewall (111) at one end away from the third outer sidewall (13), and the fifth inner sidewall (17) is connected to the first inner sidewall (113) at one end away from the fourth inner sidewall (16). The cross-sectional structure enclosed by the bottom end face (112), the first outer sidewall (111), the second outer sidewall (12), the third outer sidewall (13), the second inner sidewall (14), the third inner sidewall (15), the fourth inner sidewall (16), the fifth inner sidewall (17), and the first inner sidewall (113) is a type 7. The battery pack frame is installed on the fourth inner sidewall (16).

6. A novel vehicle rocker structure according to claim 5, characterized by It also includes a first horizontal plate (4), a second horizontal plate (5), a third horizontal plate (6), and a first vertical plate (7) disposed within the threshold body (1); The first horizontal plate (4), the second horizontal plate (5), and the third horizontal plate (6) are arranged in parallel intervals to divide the interior of the threshold body (1) into four cavities from top to bottom; The first horizontal plate (4) is connected to the third inner sidewall (15) and the first vertical plate (7) at both ends respectively. One end of the second horizontal plate (5) is connected to the upper end of the fifth inner sidewall (17), and the other end of the second horizontal plate (5) is connected to the second outer sidewall (12). One end of the third horizontal plate (6) is connected to the lower end of the fifth inner sidewall (17), and the other end of the third horizontal plate (6) is connected to the lower end of the second outer sidewall (12). One end of the first vertical plate (7) is connected to the third outer side wall (13), and the other end of the first vertical plate (7) is connected to the second horizontal plate (5).

7. A novel vehicle rocker structure according to claim 6, characterized in that, The first vertical plate (7) extends from the end opposite to the third outer wall (13) to the lower part of the threshold body (1) to connect with the third horizontal plate (6).

8. A novel vehicle rocker structure according to claim 6, characterized by, It also includes a second vertical plate (8) disposed inside the threshold body (1), one end of the second vertical plate (8) being connected to the second inner sidewall (14) and the other end being connected to the junction of the fourth inner sidewall (16) and the fifth inner sidewall (17); The first horizontal plate (4) passes through the second vertical plate (8) and is connected to the first vertical plate (7).

9. A novel vehicle rocker structure as claimed in claim 6, wherein, It also includes a reinforcing plate (9) disposed inside the threshold body (1), one end of the reinforcing plate (9) being connected to the second inner sidewall (14), and the other end of the reinforcing plate (9) being connected to the second horizontal plate (5).