Vehicle body sill structure and vehicle

Abstract

The present application relates to a kind of vehicle body door sill structure and vehicle, and the vehicle body door sill structure includes: door sill outer plate and door sill inner plate, door sill outer plate and door sill inner plate are connected to form the cavity extending along first direction;And support bracket and reinforcing structure are arranged in the inside of cavity, support bracket includes main body part and the connecting part of main body part and door sill outer plate fixed connection, reinforcing structure is fixedly connected with door sill inner plate and is arranged as the multicellular structure extending along first direction, and gap is arranged between the support bracket and the reinforcing structure.The stability of vehicle body door sill structure can be improved by arranging support bracket and reinforcing structure in the cavity of the vehicle body door sill structure of the present application, the deformation amount of door sill structure is reduced when side impact occurs, and the safety performance of vehicle is improved.

Description

Technical Field

[0001] This invention relates to the technical field of vehicle body parts, and more specifically to a vehicle body door sill structure and a vehicle including the same. Background Technology

[0002] The vehicle body structure is the core skeleton of the entire vehicle, generally including structural sheet metal parts, body panel sheet metal parts, and reinforcing sheet metal parts. The design of the body structure directly determines the vehicle's passive safety and dynamic performance. The structural sheet metal parts constitute the mechanical skeleton of the body, including longitudinal beams, cross beams, A / B / C pillars, and sill structures. The sill structure, as a key component of the structural sheet metal parts, is located below the doors on both sides of the vehicle, extending along the sides of the body. It not only enhances the overall rigidity of the body and improves safety but also protects the bottom of the body. In the event of a collision, especially a side impact, the impact force is instantly transferred to the B-pillar through the door anti-collision beam. As a longitudinal connector of the body, the sill structure disperses the collision energy along the sill beam to the other side of the body, preventing structural failure caused by single-point overload, while also absorbing a large amount of energy through its elastic and plastic deformation. Furthermore, the sill structure is crucial for controlling the intrusion into the passenger compartment. Therefore, the sill structure is an important guarantee of overall vehicle stability, playing a role in absorbing and dispersing impact forces, effectively protecting the safety of passengers inside the vehicle.

[0003] With societal development, collision safety regulations and industry standards are rising year by year. Meanwhile, energy conservation and vehicle lightweighting have become crucial considerations in vehicle design, placing higher demands on vehicle body structure design. To improve the crashworthiness of the passenger compartment, especially in side impacts, and to protect passenger safety, various reinforcing structures are added to the cavities of the vehicle's door sills. However, current technology cannot simultaneously balance side-impact safety and vehicle weight. Summary of the Invention

[0004] In view of the above problems, the present invention provides a vehicle body door sill structure and a vehicle. By setting a reinforcing structure in its cavity, the vehicle body door sill structure can be well supported, improving the stability of the vehicle body door sill structure and enhancing the safety of the vehicle in side collisions.

[0005] To this end, a first aspect of the present invention provides a vehicle sill structure, comprising: an outer sill plate and an inner sill plate, the outer sill plate and the inner sill plate being interconnected to form a cavity extending along a first direction; and a support bracket and a reinforcing structure disposed inside the cavity, the support bracket comprising a main body portion and a connecting portion for fixing the main body portion to the outer sill plate, the reinforcing structure being fixedly connected to the inner sill plate and configured as a multi-chamber structure extending along the first direction, and a gap being provided between the support bracket and the reinforcing structure.

[0006] Based on the above-described technical concept, the present invention may further include any one or more of the following optional forms.

[0007] In some alternative forms, the sill plate includes a first inner surface and a second inner surface and a third inner surface that extend from both ends of the first inner surface and are opposite to each other, and the connecting portion is fixedly connected to each of the first inner surface, the second inner surface and the third inner surface.

[0008] In some alternative forms, the main body is suspended above the outer sill plate and includes a first main body parallel to the first inner surface, a second main body extending from both ends of the first main body, and a third main body; the connecting part includes a first connecting arm, a second connecting arm, and a third connecting arm, wherein the first connecting arm extends from both ends of the first main body along the first direction and is fixedly connected to the first inner surface, the second connecting arm extends from both ends of the second main body along the first direction and is fixedly connected to the second inner surface, and the third connecting arm extends from both ends of the third main body along the first direction and is fixedly connected to the third inner surface.

[0009] In some alternative configurations, the first connecting arm, the second connecting arm, and the third connecting arm are separate from each other.

[0010] In some alternative forms, the length of the main body portion along the first direction is set to 60mm-100mm; and / or, the distance between the first main body portion and the outer sill plate is set to 12mm-20mm.

[0011] In some alternative forms, the gap is kept uniform between the main body and the reinforcing structure, and the gap is set to 5mm-10mm.

[0012] In some alternative forms, the vehicle door sill structure includes a plurality of support brackets spaced apart along the first direction, with adjacent support brackets spaced 30mm-80mm apart.

[0013] In some alternative forms, the reinforcing structure has a closed cross section in a plane perpendicular to the first direction, and the interior of the reinforcing structure is provided with a plurality of partition walls arranged in a cross pattern.

[0014] In some alternative forms, the support bracket is manufactured by a stamping process; and / or, the connecting portion of the support bracket is fixedly connected to the outer sill plate by welding; and / or, the reinforcing structure is fixedly connected to the inner sill plate by welding and / or screws.

[0015] A second aspect of the present invention provides a vehicle including the above-described body sill structure.

[0016] Compared to existing technologies, the application of the vehicle sill structure according to the present invention yields several beneficial technical effects, particularly: the support bracket and reinforcing structure are disposed within the cavity formed by the connection of the outer sill plate and the inner sill plate. The support bracket includes a main body and a connecting portion that fixes the main body to the outer sill plate. The reinforcing structure is fixedly connected to the inner sill plate and configured as a multi-chamber structure, with a gap between the support bracket and the reinforcing structure. In this way, the main body of the support bracket provides strong support to the outer sill plate, improving its rigidity and strength, effectively reducing deflection of the outer sill plate during a side collision. The multi-chamber structure of the reinforcing structure improves the structural strength of the inner sill plate, further reducing the risk of side collisions. Simultaneously, this vehicle sill structure meets the requirements for vehicle lightweighting. Attached Figure Description

[0017] Other features and advantages of the invention will be better understood through the following detailed description of preferred embodiments in conjunction with the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts.

[0018] Figure 1 This is a schematic diagram showing the position of the vehicle door sill structure in the vehicle body structure according to an embodiment of the present invention.

[0019] Figure 2 For the body door sill structure along Figure 1 A schematic diagram of the cross-sectional structure taken from section AA.

[0020] Figure 3 This is a schematic diagram of the support bracket for the vehicle door sill structure.

[0021] Figure 4 This is a schematic diagram of the outer sill plate and support bracket of the vehicle body sill structure (including part of the vehicle body structure).

[0022] The elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to exact scale. It should be understood that these drawings are not only for explaining and illustrating the invention, but also, where necessary, for defining the invention. Detailed Implementation

[0023] The implementation and use of specific embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely illustrative of particular ways of implementing and using the invention, and are not intended to limit the scope of the invention.

[0024] The directional and positional terms used in this invention can be referred to as follows: Figures 1 to 4The exemplary structure shown is explained below. "X" indicates the longitudinal direction of the vehicle, i.e., the length direction of the vehicle; the directional terms "up" and "down" refer to directions closer to the top of the vehicle and closer to the bottom of the vehicle, respectively, with the vehicle as a reference coordinate. Sequential terms such as "first," "second," and "third" are used to describe various elements but are not intended to limit the positional, temporal, or importance relationships of these elements; such terms are merely used to distinguish one element from another. It should be understood that in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed according to the characteristics required by individual embodiments.

[0025] In the description of this invention, it should also be noted that, in the exemplary embodiments of this invention, the term "connection" includes various connection methods such as "welding," "coupling," "screw connection," or "adhesion." Those skilled in the art can understand the specific meaning of the above terms in this invention as appropriate.

[0026] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Figure 1 The diagram schematically shows part of the vehicle body structure. Figure 2 For along Figure 1 A schematic diagram of the cross-sectional structure taken from section AA. Figure 3 This is a schematic diagram of a support structure. (Example) Figures 1 to 3As shown, the vehicle sill structure 10 according to the present invention includes an outer sill plate 100 and an inner sill plate 200, wherein the outer sill plate 100 is relatively close to the outer side of the vehicle, and the inner sill plate 200 is relatively close to the inner side of the vehicle. The upper and lower ends of the outer sill plate 100 and the inner sill plate 200 can be connected to each other to form a cavity 500 that extends generally along the X direction, that is, the cavity 500 extends along the longitudinal direction of the vehicle. The cavity 500 is generally rectangular in cross-section perpendicular to the X direction, and a support bracket 300 and a reinforcing structure 400 are provided inside. The support bracket 300 includes a main body 310 and a connecting part 320 for fixing the main body 310 to the outer sill plate 100. Specifically, the main body 310 can be at least partially suspended from the outer sill plate 100, that is, at least a part of the structure of the main body 310 does not rest against the outer sill plate 100. The shape of the main body 310 strengthens the structure of the outer sill plate 100, thereby providing strong support for the outer sill plate 100, improving the rigidity and strength of the outer sill plate 100, and effectively reducing the deflection of the outer sill plate 100 in the event of a side collision with a vehicle. The reinforcing structure 400 is fixedly connected to the inner sill plate 200 and is configured as a multi-chamber structure extending in the X direction to improve the structural strength of the inner sill plate 200. Inside the cavity 500, there is a gap between the support bracket 300 and the reinforcing structure 400. The setting of the reinforcing structure 400 further improves the overall structural stability of the vehicle sill structure 10, reduces intrusion into the passenger compartment, and lowers the risk of side collisions with the vehicle. Meanwhile, the main body 310 of the support bracket 300 is at least partially suspended and connected to the outer door sill plate 100, and the reinforcing structure 400 is a multi-chamber structure. This arrangement has little impact on the overall vehicle weight and can meet the requirements for vehicle lightweighting.

[0027] For ease of manufacturing, the support bracket 300 can be made of metal and manufactured by stamping. The connecting portion 320 of the support bracket 300 can be pre-fixed to the outer sill plate 100, and the reinforcing structure 400 can be pre-fixed to the inner sill plate 200. Then, the outer sill plate 100 and the inner sill plate 200 are fixedly connected to form the cavity 500. The connecting portion 320 of the support bracket 300 can be welded to the outer sill plate 100, and the reinforcing structure 400 can be welded and / or screwed to the inner sill plate 200.

[0028] Continue to refer to Figure 2 and Figure 3The main surface of the sill outer plate 100 used to form the cavity 500 (i.e., the surface generally along the vertical direction of the vehicle) is defined as the first inner surface 110. The sill outer plate 100 includes the first inner surface 110 and a second inner surface 120 and a third inner surface 130 that extend inward from the upper and lower ends of the first inner surface 110 and are opposite to each other. For distinction, the surface closer to the upper end can be defined as the second inner surface 120, and the surface closer to the lower end can be defined as the third inner surface 130. The second inner surface 120 and the third inner surface 130 extend, for example, generally along the horizontal direction of the vehicle. The connecting portion 320 of the support bracket 300 is fixedly connected to each of the first inner surface 110, the second inner surface 120, and the third inner surface 130, so that the main body 310 can support the first inner surface 110, the second inner surface 120, and the third inner surface 130 of the sill outer plate 100 through the connecting portion 320, further improving the rigidity and strength of the sill outer plate 100.

[0029] Specifically, the main body 310 can be suspended from the outer door sill plate 100, and the main body 310 can be configured to include a first main body 311 that is substantially parallel to the first inner surface 110, and a second main body 312 and a third main body 313 that extend inwardly from the upper and lower ends of the first main body 311, respectively. The connecting part 320 includes a first connecting arm 321, a second connecting arm 322, and a third connecting arm 323, for example, as shown in the figure. Figure 3 As shown, two first connecting arms 321 extend from both ends of the first main body 311 along the X direction, two second connecting arms 322 extend from both ends of the second main body 312 along the X direction, and two third connecting arms 323 extend from both ends of the third main body 313 along the X direction. Furthermore, the first connecting arms 321 are fixedly connected to the first inner surface 110, the second connecting arms 322 are fixedly connected to the second inner surface 120, and the third connecting arms 323 are fixedly connected to the third inner surface 130. By dividing the main body 310 into a first main body 311, a second main body 312, and a third main body 313 corresponding to the first inner surface 110, the second inner surface 120, and the third inner surface 130 of the sill outer plate 100, and by extending connecting arms from both ends of each part along the X direction to connect with the first inner surface 110, the second inner surface 120, and the third inner surface 130 of the sill outer plate 100, the support strength between the support bracket 300 and the sill outer plate 100 is further enhanced, thereby improving the rigidity and strength of the sill outer plate 100.

[0030] Preferably, the first connecting arm 321, the second connecting arm 322, and the third connecting arm 323 are disposed separately from each other. That is, as follows: Figure 3As shown, for the support bracket 300 on the same side, slots 330 are respectively provided between the second connecting arm 322 and the first connecting arm 321, and between the first connecting arm 321 and the third connecting arm 323. By providing slots 330, the manufacturing of the support bracket 300 can be facilitated, allowing the support bracket 300 to be formed in a single stamping process. In some embodiments, the length L along the X direction of the first main body 311, the second main body 312, and the third main body 313 can be set to be approximately the same or slightly different, with the length L ranging from 30mm to 60mm, for example, approximately 45mm. The distance t between the first main body 311 and the outer sill plate 100 is set to 12mm to 20mm, for example, approximately 18mm. A uniform gap d is provided between the main body 310 of the support bracket 300 and the reinforcing structure 400, and the gap d is set to 5mm-10mm, for example, about 8mm. This can prevent interference between the main body 310 of the support bracket 300 and the reinforcing structure 400 when connecting the outer sill plate 100 and the inner sill plate 200 if the gap is too small, thus affecting the installation.

[0031] In some embodiments, the number of support brackets 300 can also be set to multiple, for example Figure 4 The diagram shows three support brackets 300 installed on the inner wall of the sill outer panel 100, respectively located below the B-pillar and between the B-pillar and the A-pillar. The multiple support brackets 300 are spaced apart in the X-direction, for example, they can be spaced apart by 30mm-80mm, so as to achieve the smallest possible increase in the weight of the vehicle body and improve the rigidity and strength of the vehicle sill structure 10.

[0032] The reinforcing structure 400 has a closed section in a plane perpendicular to the X direction, and the interior of the reinforcing structure 400 is provided with multiple partition walls 410 arranged in a cross pattern. The multiple partition walls 410 can be referenced from... Figure 2 The partition walls 410 can be configured as intersecting straight walls, intersecting curved walls, or a combination of intersecting straight and curved walls, and the wall thickness of each partition wall 410 can be the same or different. It is understood that... Figure 2 The arrangement of the vertically intersecting partition walls 410 shown is illustrative but not limiting, and those skilled in the art may make changes based on the actual strength requirements of the vehicle body sill structure 10.

[0033] In some embodiments, the present invention also provides a vehicle including the above-described body sill structure 10.

[0034] The technical content and features of the present invention have been disclosed above. However, it is understood that, under the creative concept of the present invention, those skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in the present invention, but all of them fall within the protection scope of the present invention.

[0035] The above description of the embodiments is exemplary and not restrictive, and the scope of protection of the present invention is determined by the claims.

Claims

1. A vehicle sill structure (10), characterized in that, include: An outer sill plate (100) and an inner sill plate (200) are connected to each other to form a cavity (500) extending along a first direction (X); and A support bracket (300) and a reinforcing structure (400) are disposed inside the cavity (500). The support bracket (300) includes a main body (310) and a connecting part (320) that fixes the main body (310) to the outer sill plate (100). The reinforcing structure (400) is fixedly connected to the inner sill plate (200) and is configured as a multi-chamber structure extending along the first direction (X). A gap is provided between the support bracket (300) and the reinforcing structure (400).

2. The vehicle sill structure (10) according to claim 1, characterized in that, The threshold outer panel (100) includes a first inner surface (110) and a second inner surface (120) and a third inner surface (130) that extend from both ends of the first inner surface (110) and are opposite to each other. The connecting portion (320) is fixedly connected to each of the first inner surface (110), the second inner surface (120) and the third inner surface (130).

3. The vehicle sill structure (10) according to claim 2, characterized in that, The main body (310) is suspended above the threshold outer plate (100) and includes a first main body (311) arranged parallel to the first inner surface (110), a second main body (312) and a third main body (313) that are bent and extended from both ends of the first main body (311); The connecting portion (320) includes a first connecting arm (321), a second connecting arm (322), and a third connecting arm (323). The first connecting arm (321) extends from both ends of the first main body portion (311) along the first direction (X) and is fixedly connected to the first inner surface (110). The second connecting arm (322) extends from both ends of the second main body portion (312) along the first direction (X) and is fixedly connected to the second inner surface (120). The third connecting arm (323) extends from both ends of the third main body portion (313) along the first direction (X) and is fixedly connected to the third inner surface (130).

4. The vehicle sill structure (10) according to claim 3, characterized in that, The first connecting arm (321), the second connecting arm (322), and the third connecting arm (323) are separated from each other.

5. The vehicle sill structure (10) according to claim 3, characterized in that, The length of the main body (310) along the first direction (X) is set to 60mm-100mm, and / or the distance between the first main body (311) and the outer sill plate (100) is set to 12mm-20mm.

6. The vehicle sill structure (10) according to claim 1, characterized in that, The gap is kept uniform between the main body (310) and the reinforcing structure (400), and the gap is set to 5mm-10mm.

7. The vehicle sill structure (10) according to claim 1, characterized in that, The vehicle door sill structure (10) includes a plurality of support brackets (300) spaced apart along the first direction (X), with adjacent support brackets (300) spaced apart by 30mm-80mm.

8. The vehicle sill structure (10) according to any one of claims 1-7, characterized in that, The reinforcing structure (400) has a closed cross section in a plane perpendicular to the first direction (X), and the interior of the reinforcing structure (400) is provided with a plurality of cross-arranged partition walls (410).

9. The vehicle sill structure (10) according to any one of claims 1-7, characterized in that, The support bracket (300) is manufactured by a stamping process; and / or, The connecting portion (320) of the support bracket (300) is fixedly connected to the outer sill plate (100) by welding; and / or, The reinforcing structure (400) is fixedly connected to the inner sill plate (200) by welding and / or screws.

10. A vehicle, characterized in that, Includes the vehicle door sill structure (10) according to any one of claims 1 to 9.

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