Threshold beam, vehicle body and vehicle

Abstract

The utility model relates to the technical field of doorsill beams, particularly provides a doorsill beam, a vehicle body and a vehicle, and aims to solve the problem that the structural design of the conventional doorsill beam has obvious contradiction between light weight and safety performance. In order to achieve the purpose, the doorsill beam comprises an impact side and an installation side which are oppositely arranged, two ends of the first reinforcing part are respectively connected with the impact side and the mounting side; the second reinforcing part is positioned below the first reinforcing part, and two ends of the second reinforcing part are respectively connected with the impact side and the mounting side; the bearing part is positioned below the second reinforcing part, and two ends of the bearing part are respectively connected with the impact side and the mounting side; and the two ends of the supporting part are connected with the second reinforcing part and the bearing part correspondingly, and the bearing part is arranged to serve as a supporting base of the supporting part so as to improve the supporting strength of the supporting part. The doorsill beam is lighter through a small number of structures, the requirements for rigidity and strength are met, and safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of door sill beam technology, specifically providing a door sill beam, a vehicle body, and a vehicle. Background Technology

[0002] In modern automotive design, especially in the field of electric vehicles, the structural design of door sill beams faces new challenges. While traditional steel sheet metal door sill beams have significant advantages in terms of economy and welding technology, their weight is becoming increasingly prominent, becoming a key factor restricting the achievement of lightweighting and extended driving range goals in electric vehicles. With the rapid development of the electric vehicle market, lightweighting has become an industry consensus to reduce energy consumption and increase driving range.

[0003] Extruded aluminum door sill beams, as an alternative, are gradually gaining favor among automakers due to their flexible layout, diverse cross-sectional shapes, and high production efficiency. However, despite the significant advantages of aluminum in weight reduction, achieving lightweighting while maintaining the structural strength of the door sill beam remains a challenge in current design.

[0004] The existing door sill beams widely use a design with multiple transverse and longitudinal ribs intersecting each other. For example, the interior of the door sill beam is shaped like a "well", or has a 4×4 or 3×4 grid pattern or other designs. While this improves the strength and stability of the structure to some extent, it also increases the weight of the door sill beam, affecting the range performance of electric vehicles.

[0005] On the other hand, blindly reducing the internal structure of the sill beam to lower weight may lead to a significant decrease in its safety performance. As an important component of the vehicle body structure, the sill beam plays a crucial role in absorbing and dispersing impact forces during side collisions. Therefore, how to achieve lightweighting of the sill beam while ensuring safety performance is an urgent problem to be solved in current automotive design.

[0006] In summary, the existing sill beam structural design presents a clear contradiction between lightweight design and safety performance.

[0007] Accordingly, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0008] The present invention aims to solve the above-mentioned technical problems, namely, to resolve the obvious contradiction between lightweight and safety performance in the structural design of existing door sill beams.

[0009] In a first aspect, the utility model provides a kind of threshold beam, the threshold beam includes: the impact side and installation side of opposite arrangement;First reinforcing portion, two ends are connected the impact side and the installation side respectively;Second reinforcing portion, it is located below the first reinforcing portion, two ends are connected the impact side and the installation side respectively;Bearing portion, it is located below the second reinforcing portion, two ends are connected the impact side and the installation side respectively;Supporting portion, two ends are connected the second reinforcing portion and the bearing portion respectively;The bearing portion is set as the supporting base of supporting portion to improve the support strength of the supporting portion.

[0010] In the preferred technical solutions of the above threshold beam, the thickness of the bearing portion is set to make the bearing portion as the supporting base of supporting portion to improve the support strength of the supporting portion.

[0011] In the preferred technical solutions of the above threshold beam, the thickness of the impact side is less than the thickness of the bearing portion, the thickness of the installation side is less than the thickness of the bearing portion, the thickness of the first reinforcing portion is less than the thickness of the bearing portion, the thickness of the second reinforcing portion is less than the thickness of the bearing portion, and the thickness of the supporting portion is less than the thickness of the bearing portion.

[0012] In the preferred technical solutions of the above threshold beam, a first bending portion is provided on the impact side, and the second reinforcing portion is connected to the first bending portion; and / or, a second bending portion is provided on the installation side, and the second reinforcing portion is connected to the second bending portion; and / or, a first bending portion is provided on the impact side, and a second bending portion is provided on the installation side, and one end of the second reinforcing portion is connected to the first bending portion or the second bending portion.

[0013] In the preferred technical solutions of the above threshold beam, the distance between the first reinforcing portion and the second reinforcing portion is less than the distance between the second reinforcing portion and the bearing portion; and / or, the threshold beam further includes a capping portion, two ends of the capping portion are connected to the impact side and the installation side respectively, and the distance between the capping portion and the second reinforcing portion is less than the distance between the second reinforcing portion and the bearing portion.

[0014] In the preferred technical solutions of the above threshold beam, the supporting portion is inclined, and the included angle between the bearing portion and the supporting portion is an acute angle.

[0015] In the preferred technical solutions of the above threshold beam, the threshold beam further includes a third reinforcing portion, two ends of the third reinforcing portion are connected to the impact side and the supporting portion respectively.

[0016] In the preferred technical solutions of the above threshold beam, the cavity formed between the third reinforcing portion and the bearing portion is smaller than the cavity formed between the third reinforcing portion and the second reinforcing portion.

[0017] In the preferred technical scheme of the above-mentioned threshold beam, the threshold beam further comprises a connecting portion, two ends of the connecting portion are connected with the first reinforcing portion and the second reinforcing portion respectively.

[0018] In the preferred technical scheme of the above-mentioned threshold beam, the cavity formed between the connecting portion and the impact side is larger than the cavity formed between the connecting portion and the mounting side.

[0019] In the preferred technical scheme of the above-mentioned threshold beam, the mounting side comprises a mounting portion and a mounting extension portion connected with each other, the impact side comprises a first sub-portion and a second sub-portion connected with each other, the first sub-portion and the mounting portion are oppositely arranged, and the second sub-portion and the mounting extension portion are oppositely arranged; two ends of the bearing portion are connected with the first sub-portion and the mounting portion respectively; two ends of the first reinforcing portion or the second reinforcing portion are connected with the second sub-portion and the mounting extension portion respectively.

[0020] In the preferred technical scheme of the above-mentioned threshold beam, the thickness of the impact side is smaller than the thickness of the mounting portion; and / or the thickness of the impact side is smaller than the thickness of the second reinforcing portion; and / or the thickness of the impact side is smaller than the thickness of the first reinforcing portion; and / or the thickness of the impact side is equal to the thickness of the support portion; and / or the thickness of the impact side is equal to the thickness of the mounting extension portion.

[0021] In the second aspect, the utility model further provides a vehicle body, the vehicle body is connected with the threshold beam like any one of the above-mentioned preferred technical scheme.

[0022] In the third aspect, the utility model further provides a vehicle, the vehicle comprises the vehicle body in the above-mentioned preferred technical scheme.

[0023] In the technical scheme, the threshold beam comprises: a collision side and a mounting side arranged oppositely; a first reinforcing part, two ends of which are connected with the collision side and the mounting side respectively; a second reinforcing part, which is located below the first reinforcing part and two ends of which are connected with the collision side and the mounting side respectively; a bearing part, which is located below the second reinforcing part and two ends of which are connected with the collision side and the mounting side respectively; and a supporting part, two ends of which are connected with the second reinforcing part and the bearing part respectively, and the bearing part is arranged to be a supporting base of the supporting part to improve the supporting strength of the supporting part. The first reinforcing part, the second reinforcing part and the bearing part can bear lateral impact, the supporting part meets the bearing function of the threshold beam to provide additional support in the vertical direction, the overall strength of the threshold beam can be effectively improved, the stability of the threshold beam in the vertical direction is strengthened, deformation or damage of the threshold beam due to uneven stress is prevented, the problems of sinking and cracking of the threshold beam are avoided, the bearing part can also be the supporting base of the supporting part to ensure the strength effect of the threshold beam in the vertical direction, and the threshold beam is lightweight and meets the rigidity and strength requirements to ensure safety performance.

[0024] Further, the third reinforcing part and the connecting part are arranged to improve the rigidity and strength requirements of the threshold beam.

[0025] Further, the distance between the first reinforcing part, the second reinforcing part and the bearing part is arranged to form different chambers in the internal space of the threshold beam, which helps to reduce the weight, meets the lightweight requirement, and the chambers can improve the energy absorption effect of the threshold beam.

[0026] Further, the thickness of each part of the threshold beam is differentiated, the part mainly bearing impact buffering has a relatively large thickness, and the other parts have a relatively small thickness, which meets the lightweight requirement and ensures the rigidity and strength requirements of the threshold beam.

[0027] Scheme 1. A threshold beam, characterized in that the threshold beam comprises:

[0028] a collision side and a mounting side arranged oppositely;

[0029] a first reinforcing part, two ends of which are connected with the collision side and the mounting side respectively;

[0030] a second reinforcing part, which is located below the first reinforcing part and two ends of which are connected with the collision side and the mounting side respectively;

[0031] a bearing part, which is located below the second reinforcing part and two ends of which are connected with the collision side and the mounting side respectively;

[0032] a supporting part, two ends of which are connected with the second reinforcing part and the bearing part respectively;

[0033] The bearing portion is configured to serve as a support base of the support portion to improve the support strength of the support portion.

[0034] Option 2. The threshold beam according to Option 1, wherein a thickness of the bearing portion is configured to serve as a support base of the support portion to improve the support strength of the support portion.

[0035] Option 3. The threshold beam according to Option 2, wherein the thickness of the impact side is less than the thickness of the bearing portion, the thickness of the mounting side is less than the thickness of the bearing portion, the thickness of the first reinforcing portion is less than the thickness of the bearing portion, the thickness of the second reinforcing portion is less than the thickness of the bearing portion, and the thickness of the support portion is less than the thickness of the bearing portion.

[0036] Option 4. The threshold beam according to Option 1, wherein a first bending portion is provided on the impact side, and the second reinforcing portion is connected to the first bending portion.

[0037] Option 5. The threshold beam according to Option 1, wherein a second bending portion is provided on the mounting side, and the second reinforcing portion is connected to the second bending portion.

[0038] Option 6. The threshold beam according to Option 1, wherein a first bending portion is provided on the impact side, a second bending portion is provided on the mounting side, and one end of the second reinforcing portion is connected to the first bending portion or the second bending portion.

[0039] Option 5. The threshold beam according to Option 1, wherein a distance between the first reinforcing portion and the second reinforcing portion is less than a distance between the second reinforcing portion and the bearing portion.

[0040] Option 6. The threshold beam according to Option 1, wherein the threshold beam further comprises a capping portion, both ends of the capping portion are connected to the impact side and the mounting side, respectively, and a distance between the capping portion and the second reinforcing portion is less than the distance between the second reinforcing portion and the bearing portion.

[0041] Option 7. The threshold beam according to Option 1, wherein the support portion is arranged in an inclined manner, and an included angle between the bearing portion and the support portion is an acute angle.

[0042] Option 8. The threshold beam according to Option 1, wherein the threshold beam further comprises a third reinforcing portion, both ends of the third reinforcing portion are connected to the impact side and the support portion, respectively.

[0043] Option 9. The threshold beam according to Option 7, wherein a cavity formed between the third reinforcing portion and the bearing portion is less than a cavity formed between the third reinforcing portion and the second reinforcing portion.

[0044] Scheme 9. The threshold beam according to scheme 1, characterized in that the threshold beam further comprises a connecting portion, two ends of the connecting portion are connected with the first reinforcing portion and the second reinforcing portion respectively.

[0045] Scheme 10. The threshold beam according to scheme 9, characterized in that a cavity formed between the connecting portion and the impact side is larger than a cavity formed between the connecting portion and the mounting side.

[0046] Scheme 11. The threshold beam according to scheme 1, characterized in that the mounting side comprises a mounting portion and a mounting extension portion connected with each other, the impact side comprises a first sub-portion and a second sub-portion connected with each other, the first sub-portion and the mounting portion are oppositely arranged, and the second sub-portion and the mounting extension portion are oppositely arranged.

[0047] Two ends of the bearing portion are connected with the first sub-portion and the mounting portion respectively.

[0048] Two ends of the first reinforcing portion or the second reinforcing portion are connected with the second sub-portion and the mounting extension portion respectively.

[0049] Scheme 12. The threshold beam according to scheme 11, characterized in that a thickness of the impact side is less than a thickness of the mounting portion.

[0050] And / or a thickness of the impact side is less than a thickness of the second reinforcing portion.

[0051] And / or a thickness of the impact side is less than a thickness of the first reinforcing portion.

[0052] And / or a thickness of the impact side is equal to a thickness of the support portion.

[0053] And / or a thickness of the impact side is equal to a thickness of the mounting extension portion.

[0054] Scheme 13. A vehicle body, characterized in that the vehicle body is connected with the threshold beam according to any one of schemes 1 to 12.

[0055] Scheme 14. A vehicle, characterized in that the vehicle comprises the vehicle body according to scheme 13. BRIEF DESCRIPTION OF DRAWINGS

[0056] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings, in which:

[0057] Figure 1 is a structural diagram of the threshold beam of the present application;

[0058] Figure 2 is a sectional view of the threshold beam of the present application;

[0059] REFERENCE NUMERALS:

[0060] 1, impact side; 11, first part; 12, second part; 13, first bending part; 2, mounting side; 21, mounting part; 211, bolt hole; 22, mounting extension; 23, second bending part; 3, first reinforcing part; 4, second reinforcing part; 5, bearing part; 6, support part; 7, third reinforcing part; 8, connecting part; 9, capping part; 91, first capping part; 92, second capping part;

[0061] C1, first chamber; C2, second chamber; C3, third chamber; C4, fourth chamber; C5, fifth chamber; C6, sixth chamber. DETAILED DESCRIPTION

[0062] The preferred embodiments of the present application will be described below with reference to the drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. Those skilled in the art can make adjustments as needed to adapt to specific application occasions.

[0063] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0064] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "communicated" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] Referring to Figure 1 and Figure 2 The threshold beam of the present application comprises: an impact side 1 and a mounting side 2 which are oppositely arranged; a first reinforcing part 3, the two ends of which are connected to the impact side 1 and the mounting side 2 respectively; a second reinforcing part 4, which is located below the first reinforcing part 3, the two ends of which are connected to the impact side 1 and the mounting side 2 respectively; a bearing part 5, which is located below the second reinforcing part 4, the two ends of which are connected to the impact side 1 and the mounting side 2 respectively; a support part 6, the two ends of which are connected to the second reinforcing part 4 and the bearing part 5 respectively, and the bearing part 5 is arranged to be able to serve as a support base of the support part 6 to improve the support strength of the support part 6.

[0066] Specifically, such as Figure 2 As shown, the impact side 1 and the mounting side 2 are arranged opposite each other on the left and right. The mounting side 2 is used to connect to the vehicle body. Between the impact side 1 and the mounting side 2, from top to bottom, are three horizontally arranged first reinforcing parts 3, second reinforcing parts 4, and load-bearing parts 5, which can withstand lateral impacts and ensure the strength and rigidity of the sill beam. The support part 6 satisfies the load-bearing function of the sill beam, providing additional support in the vertical direction, which can effectively increase the overall strength of the sill beam, enhance its stability in the vertical direction, and prevent it from deforming or breaking due to uneven stress. Compared with the existing technology of sill beams with multiple horizontal and longitudinal ribs intersecting each other, for example, the interior of the existing sill beam is in a "well" shape, or in a 4×4 or 3×4 grid pattern or other, the load-bearing capacity of this utility model is significantly improved. Part 5 provides a solid support foundation and backup support for Part 6. As a support base, Part 5 is not easily deformed. By utilizing Part 5 as a support base, only one support part 6 is needed to meet the vertical strength requirements of the sill beam. The number of longitudinal ribs is reduced while still ensuring the vertical support strength of the sill beam. In addition, since Part 5 serves as a support base, its ability to withstand lateral impacts is inevitably strengthened. In summary, compared with the prior art, the internal structure of the sill beam of this utility model is less, reducing the reliance on multiple longitudinal and transverse ribs, thereby simplifying the structure, reducing weight, and improving lightweighting. At the same time, the sill beam that withstands lateral impacts can protect the battery pack located at the bottom of the vehicle. Without sacrificing safety, weight reduction can improve the range of electric vehicles.

[0067] Furthermore, the thickness of the impact side 1 is less than the thickness of the load-bearing part 5, the thickness of the mounting side 2 is less than the thickness of the load-bearing part 5, the thickness of the first reinforcing part 3 is less than the thickness of the load-bearing part 5, the thickness of the second reinforcing part 4 is less than the thickness of the load-bearing part 5, and the thickness of the support part 6 is less than the thickness of the load-bearing part 5. By setting the thickness of the load-bearing part 5 to be greater than the thickness of all other parts of the sill beam, the load-bearing part 5 has excellent performance when subjected to side impacts, making it less prone to bending deformation under external forces, ensuring the overall bending resistance of the sill beam, thereby maintaining the integrity of the vehicle body structure. When the vehicle is involved in a side collision, the thicker load-bearing part 5 can more effectively absorb and disperse impact energy. Also, due to its greater thickness, it can provide good backup support for the support part 6. Compared with the thinner load-bearing part, it not only improves the static support capacity of the support part 6, but also enhances its stability and reliability under dynamic conditions. The support strength of the support part 6 of this utility model is better.

[0068] The above-mentioned way is to set the thickness of the bearing part 5 to make the bearing part 5 as a support base of the support part 6 to improve the support strength of the support part, which is only a preferred setting way, and in other embodiments, the material of the bearing part 5 is set to be different from that of other parts, and the bending strength of the material used by the bearing part 5 is better than that of the material of other parts.

[0069] Referring to Figure 2 , the first bending part 13 is arranged on the impact side 1, and one end of the second reinforcing part 4 is connected to the first bending part 13; the upper part of the first bending part 13 is closer to the impact side 1 than the lower part, and when the first reinforcing part 3 is impacted in the vertical direction, it is transmitted to the support part 6 through the upper part of the first bending part 13, the first bending part 13, and the second reinforcing part 4, based on which the support part 6 can support the second reinforcing part 4 and the structure above the second reinforcing part 4.

[0070] The second bending part 23 is arranged on the mounting side 2, and the other end of the second reinforcing part 4 is connected to the second bending part 23 (as Figure 2 can be understood that the connection between the second reinforcing part 4 and the mounting side 2 is the upper end of the second bending part 23), and the upper part of the second bending part 23 is closer to the impact side 1 than the lower part, and when the first reinforcing part 3 is impacted in the vertical direction, it is transmitted to the support part 6 through the upper part of the second bending part 23, the second bending part 23, and the second reinforcing part 4, based on which the support part 6 can further support the second reinforcing part 4 and the structure above the second reinforcing part 4.

[0071] In other embodiments, the rocker beam only includes the first bending part 13, and the second reinforcing part 4 is connected to the first bending part 13;

[0072] In other embodiments, the rocker beam only includes the second bending part 23, and the second reinforcing part 4 is connected to the second bending part 23,

[0073] In other embodiments, the rocker beam includes the first bending part 13 and the second bending part 23, and one end of the second reinforcing part 4 is connected to one of the first bending part 13 and the second bending part 23.

[0074] Referring to Figure 2The support part 6 is arranged obliquely, the included angle a between the bearing part 5 and the support part 6 is an acute angle, the value of the included angle a is between 57° and 63°, which can be 57°, 58°, 59°, 60°, 61°, 62° or 63°, or other values; the connecting end of the support part 6 to the second reinforcing part 4 is close to the installation side 2, and the connecting end of the support part 6 to the bearing part 5 is close to the impact side 1, so that the included angle between the bearing part 5 and the support part 6 is an acute angle, that is, the upper end of the support part 6 is inclined to the right, and the lower end is inclined to the left. Based on the above structure, the support part 6 can not only play a vertical supporting role, but also has a certain projection length in the horizontal direction, which means that it can absorb the impact force in the horizontal direction to a certain extent. When impacted in the horizontal direction, the inclined part will play a role similar to a diagonal brace, converting the impact force into vertical and horizontal components, improving stability and safety.

[0075] The inclination direction of the above-mentioned support part 6 is only a preferred setting, and the connecting end of the support part 6 to the second reinforcing part 4 can be away from the installation side 2, and the connecting end of the support part 6 to the bearing part 5 can be away from the impact side 1, so that the included angle between the bearing part 5 and the support part 6 is an acute angle, which can be set by the person skilled in the art according to the actual situation.

[0076] In addition, in the preferred embodiment, the threshold beam further comprises a third reinforcing part 7, and the two ends of the third reinforcing part 7 are connected to the impact side 1 and the support part 6 respectively. The third reinforcing part 7 can also withstand side impact, improving the rigidity and strength requirements of the threshold beam.

[0077] Further, the cavity formed between the third reinforcing part 7 and the bearing part 5 is smaller than the cavity formed between the third reinforcing part 7 and the second reinforcing part 4. Specifically, referring to Figure 2 , the upper side of the third reinforcing part 7, the lower side of the second reinforcing part 4, the right side of the impact side 1, and the left side of the support part 6 together enclose a third cavity C3, and the lower side of the third reinforcing part 7, the upper side of the bearing part 5, the right side of the impact side 1, and the left side of the support part 6 together enclose a fourth cavity C4, and the volume of the fourth cavity C4 is smaller than the volume of the third cavity C3, and Figure 2 , it can be known that the cross-sectional area of the fourth cavity C4 is smaller than the cross-sectional area of the third cavity C3, that is, the third reinforcing part 7 is closer to the bearing part 5, which can strengthen the structural strength of the bottom of the threshold beam.

[0078] Further, the left end of the third reinforcing part 7 is lower than the right end, which can play a supporting role to assist the support part 6 in supporting and improve the support and bearing strength of the threshold beam.

[0079] It should be noted that the specific setting position of the third reinforcing part 7 is not limited in the utility model, and the third reinforcing part 7 can also be arranged at a position such that the volumes of the third chamber C3 and the fourth chamber C4 are the same, or the third reinforcing part 7 can be arranged horizontally, and a person skilled in the art can set it according to the actual situation.

[0080] Continuing to refer to Figure 2 , the threshold beam further comprises a connecting part 8, and two ends of the connecting part 8 are connected to the first reinforcing part 3 and the second reinforcing part 4 respectively. Specifically, the first reinforcing part 3 and the second reinforcing part 4 are arranged horizontally, and the connecting part 8 is arranged vertically, so that the load bearing and supporting capacity, the rigidity and the strength performance of the threshold beam can be further improved.

[0081] The chamber formed between the connecting part 8 and the impact side 1 is larger than the chamber formed between the connecting part 8 and the mounting side 2. The left side of the connecting part 8, the right side of the impact side 1, the lower side of the first reinforcing part 3 and the upper side of the second reinforcing part 4 jointly enclose a second chamber C2, and the right side of the connecting part 8, the left side of the mounting side 2, the lower side of the first reinforcing part 3 and the upper side of the second reinforcing part 4 jointly enclose a fifth chamber C5, and the volume of the second chamber C2 is larger than that of the fifth chamber C5, as shown in Figure 2 , the cross-sectional area of the second chamber C2 is larger than that of the fifth chamber C5, and the second chamber C2 has more space to disperse the impact force. After the second chamber C2 absorbs the impact energy, the fifth chamber C5 will participate in the energy absorption process subsequently. It serves as the second line of defense to further absorb and disperse the remaining impact energy, thereby enhancing the overall energy absorption capacity of the threshold beam. At the same time, the existence of the fifth chamber C5 can also enhance the structural rigidity of the threshold beam, so that it can better resist deformation during impact. This gradient design helps to achieve a smoother and more gradual energy absorption process, reduces the sudden impact of impact on the vehicle body structure, and protects the battery pack.

[0082] Preferably, the mounting side 2 comprises a mounting part 21 and a mounting extension part 22 connected to each other, and the impact side 1 comprises a first part 11 and a second part 12 connected to each other, the first part 11 and the mounting part 21 are oppositely arranged, and the second part 12 and the mounting extension part 22 are oppositely arranged; the two ends of the load bearing part 5 are connected to the first part 11 and the mounting part 21 respectively; the two ends of the second reinforcing part 4 are connected to the second part 12 and the mounting extension part 22 respectively, and specifically, referring to Figure 2The mounting extension 22 is located above the mounting portion 21, the second portion 12 is located above the first portion 11, the left and right ends of the bearing portion 5 are connected to the bottom end of the first portion 11 and the bottom end of the mounting portion 21 respectively, the left end of the second reinforcing portion 4 is connected to the lower end of the second portion 12 (the lower end of the second portion 12 can be understood as the connection between the first portion 11 and the second portion 12), and the right end of the second reinforcing portion 4 is connected to the lower half of the mounting extension 22 (the connection between the mounting portion 21 and the mounting extension 22). Since the first reinforcing portion 3 is located above the second reinforcing portion 4, the left and right ends of the first reinforcing portion 3 are connected to the second portion 12 and the mounting extension 22 respectively.

[0083] In other embodiments, the left and right ends of the first reinforcing portion 3 are connected to the second portion 12 and the mounting extension 22 respectively, and the left and right ends of the second reinforcing portion 4 are connected to the first portion 11 and the mounting portion 21 respectively.

[0084] As shown in Figure 2 , the connection between the first portion 11 and the second portion 12 is provided with a rounded transition, and the connection between the mounting portion 21 and the mounting extension 22 is also provided with a rounded transition. In the left-right direction, the first portion 11 is located to the left of the second portion 12, and the mounting portion 21 is located to the right of the mounting extension 22. Of course, this is not limiting, and in other embodiments, the first portion 11 and the second portion 12 can also be a straight line in the vertical direction, and the mounting portion 21 and the mounting extension 22 can also be a straight line in the vertical direction.

[0085] In the preferred embodiment, the left end of the second reinforcing portion 4 is lower than the right end, and the connecting portion 8 is inclined to the left from top to bottom, but this is not limiting, and the left and right ends of the second reinforcing portion 4 can also be flush, and the connecting portion 8 can also be inclined to the right from top to bottom. Those skilled in the art can set it according to the actual situation.

[0086] In addition, the rocker also includes a capping portion 9, both ends of the capping portion 9 are connected to the impact side 1 and the mounting side 2 respectively, the capping portion 9 is the top of the rocker, the left end of the capping portion 9 is connected to the upper end of the impact side 1, the right end of the capping portion 9 is connected to the top end of the mounting side 2, the left end of the bearing portion 5 is connected to the lower end of the impact side 1, and the right end of the bearing portion 5 is connected to the lower end of the mounting side 2. Based on this, the impact side 1, the bearing portion 5, the mounting side 2 and the capping portion 9 form the outer surface of the rocker.

[0087] The connection between the impact side 1 and the capping portion 9 is provided with a rounded transition, and the connection between the mounting side 2 and the capping portion 9 is also provided with a rounded transition.

[0088] Further, the roof 9 further comprises a first roof subpart 91 and a second roof subpart 92 connected to each other, the left end of the first roof subpart 91 is connected to the top end of the impact side 1, the right end of the second roof subpart 92 is connected to the top end of the mounting side 2, the first roof subpart 91 is used to abut against the door when the rocker beam is mounted to the vehicle body and is mounted in place, the second roof subpart 92 is used to be connected to the vehicle seat frame, the connection between the first roof subpart 91 and the second roof subpart 92 is upwardly protruding, higher than the left end of the first roof subpart 91 and the right end of the second roof subpart 92.

[0089] Preferably, the distance between the first reinforcing part 3 and the second reinforcing part 4 is smaller than the distance between the second reinforcing part 4 and the bearing part 5; the distance between the first reinforcing part 3 and the roof 9 is smaller than the distance between the second reinforcing part 4 and the bearing part 5, allowing the interior space of the rocker beam to form different chambers, which helps to reduce the weight and meet the lightweight requirement, and at the same time, the chambers can improve the energy absorption effect of the rocker beam, in addition, since the two ends of the support part 6 are connected to the second reinforcing part 4 and the bearing part 5 respectively, the greater the distance between the second reinforcing part 4 and the bearing part 5, the longer the length of the support part 6 in the vertical direction, the longer the length of the support part 6 in the vertical direction, the wider the support range, the stronger the support strength.

[0090] Further, the distance between the roof 9 and the second reinforcing part 4 is smaller than the distance between the second reinforcing part 4 and the bearing part 5, and for the same reason, this setting will make the length of the support part 6 in the vertical direction longer, the longer the length of the support part 6 in the vertical direction, the wider the support range, the wider the support range, the stronger the support strength.

[0091] Specifically, as shown in Figure 2 the interior of the rocker beam forms six chambers, in sequence, the first chamber C1 formed between the roof 9 and the first reinforcing part 3, the second chamber C2, the third chamber C3, the fourth chamber C4, the fifth chamber C5, the sixth chamber C6 formed between the support part 6 and the mounting side 2, and the volumes of the six chambers are different, the volume of the sixth chamber C6 is greater than the volume of the third chamber C3, which is greater than the volumes of the other chambers, and the third chamber C3 and the sixth chamber C6 with larger volumes are conducive to the lightweight of the components.

[0092] The thickness of the impact side 1 is smaller than the thickness of the mounting part 21; the thickness of the impact side 1 is smaller than the thickness of the second reinforcing part 4; the thickness of the impact side 1 is smaller than the thickness of the first reinforcing part 3; the thickness of the impact side 1 is smaller than the thickness of the bearing part 5; the thickness of the first reinforcing part 3 is smaller than the thickness of the bearing part 5; the thickness of the second reinforcing part 4 is smaller than the thickness of the bearing part 5; the thickness of the impact side 1 is equal to the thickness of the support part 6; the thickness of the impact side 1 is equal to the thickness of the mounting extension part 22.

[0093] In other embodiments, any one of the above thickness relationships and combinations of any number of thickness relationships are included.

[0094] Preferably, the impact side 1, the capping portion 9, the mounting extension 22, the support portion 6 and the third reinforcing portion 7 are lightened structures, each having a thickness of 2mm, the first reinforcing portion 3 has a thickness of 2.6mm, the connecting portion 8 has a thickness of 3.6mm, the second reinforcing portion 4 has a thickness of 2.5mm, the mounting portion 21 has a thickness of 2.6mm, which provides better mounting point strength and lateral bending stiffness for the rocker beam component, and the load bearing portion 5 has a thickness of 6mm, which can provide greater vertical bending stiffness.

[0095] By differentiating the thickness of each portion of the rocker beam, the portion mainly bearing impact buffering has a relatively thick thickness, and the remaining portions have a relatively thin thickness, which not only meets the lightweight requirement, but also ensures the stiffness and strength requirements of the rocker beam.

[0096] Of course, the above thicknesses are only some preferred settings, and those skilled in the art can adaptively adjust the thickness of each portion according to actual conditions.

[0097] The rocker beam of the utility model is preferably integrally formed by extruded aluminum, and the unique structural design can meet the engineering requirements of weight, bending resistance, impact resistance and battery pack protection. Of course, the rocker beam can also be made of other materials, such as steel sheet metal. Even if the utility model is made of a steel sheet metal rocker beam, compared with the prior art structure which adopts multiple longitudinal ribs and multiple transverse ribs and the steel sheet metal material, the utility model still has all the technical effects described in the above scheme.

[0098] Next, refer to Figure 1 The mounting portion 21 is provided with a bolt hole 211, and the rocker beam can be mounted to the vehicle body through the bolt hole 211.

[0099] In a second aspect, the utility model also provides a vehicle body, which is connected with the rocker beam as described in any one of the above embodiments.

[0100] In a third aspect, the utility model also provides a vehicle, which comprises the vehicle body as described in the above embodiments.

[0101] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without deviating from the principles of the utility model, and the technical scheme after the changes or replacements will fall within the protection scope of the utility model.

Claims

1. A rocker rail characterized by, The threshold beam comprises: a collision side (1) and a mounting side (2) arranged oppositely; a first reinforcing part (3) having two ends connected to the collision side (1) and the mounting side (2) respectively; a second reinforcing part (4) located below the first reinforcing part (3) and having two ends connected to the collision side (1) and the mounting side (2) respectively; a bearing part (5) located below the second reinforcing part (4) and having two ends connected to the collision side (1) and the mounting side (2) respectively; a supporting part (6) having two ends connected to the second reinforcing part (4) and the bearing part (5) respectively; the bearing part (5) is arranged to serve as a supporting base of the supporting part (6) to improve the supporting strength of the supporting part (6).

2. The rocker rail of claim 1, wherein, The thickness of the bearing part (5) is arranged to make the bearing part (5) serve as a supporting base of the supporting part (6) to improve the supporting strength of the supporting part (6).

3. The rocker rail of claim 2, wherein, The thickness of the collision side (1) is less than that of the bearing part (5), the thickness of the mounting side (2) is less than that of the bearing part (5), the thickness of the first reinforcing part (3) is less than that of the bearing part (5), the thickness of the second reinforcing part (4) is less than that of the bearing part (5), and the thickness of the supporting part (6) is less than that of the bearing part (5).

4. The rocker rail of claim 1, wherein, The collision side (1) is provided with a first bending part (13), and the second reinforcing part (4) is connected to the first bending part (13); and / or, the mounting side (2) is provided with a second bending part (23), and the second reinforcing part (4) is connected to the second bending part (23); and / or, the collision side (1) is provided with a first bending part (13), the mounting side (2) is provided with a second bending part (23), and one end of the second reinforcing part (4) is connected to the first bending part (13) or the second bending part (23).

5. The rocker rail of claim 1, wherein, The distance between the first reinforcing part (3) and the second reinforcing part (4) is less than the distance between the second reinforcing part (4) and the bearing part (5); and / or, the threshold beam further comprises a capping part (9) having two ends connected to the collision side (1) and the mounting side (2) respectively, and the distance between the capping part (9) and the second reinforcing part (4) is less than the distance between the second reinforcing part (4) and the bearing part (5).

6. The rocker rail of claim 1, wherein, The supporting part (6) is arranged obliquely, and the included angle between the bearing part (5) and the supporting part (6) is an acute angle.

7. The rocker rail of claim 1, wherein, The threshold beam further comprises a third reinforcing part (7) having two ends connected to the collision side (1) and the supporting part (6) respectively.

8. The rocker rail of claim 7, wherein, The cavity formed between the third reinforcing part (7) and the bearing part (5) is smaller than the cavity formed between the third reinforcing part (7) and the second reinforcing part (4).

9. The rocker rail of claim 1, wherein, The threshold beam further comprises a connecting part (8) having two ends connected to the first reinforcing part (3) and the second reinforcing part (4) respectively.

10. The rocker rail of claim 9, wherein, The cavity formed between the connecting portion (8) and the impact side (1) is larger than the cavity formed between the connecting portion (8) and the mounting side (2).

11. The rocker rail of claim 1, wherein, The mounting side (2) comprises a mounting portion (21) and a mounting extension portion (22) connected to each other, and the impact side (1) comprises a first sub-portion (11) and a second sub-portion (12) connected to each other, wherein the first sub-portion (11) is opposite to the mounting portion (21), and the second sub-portion (12) is opposite to the mounting extension portion (22); Two ends of the bearing portion (5) are connected to the first sub-portion (11) and the mounting portion (21) respectively; Two ends of the first reinforcing portion (3) or the second reinforcing portion (4) are connected to the second sub-portion (12) and the mounting extension portion (22) respectively.

12. The rocker rail of claim 11, wherein, The thickness of the impact side (1) is less than the thickness of the mounting portion (21); The thickness of the impact side (1) is less than the thickness of the second reinforcing portion (4); The thickness of the impact side (1) is less than the thickness of the first reinforcing portion (3); The thickness of the impact side (1) is equal to the thickness of the support portion (6); The thickness of the impact side (1) is equal to the thickness of the mounting extension portion (22).

13. A vehicle body, characterized by The vehicle body is connected with the rocker beam according to any one of claims 1 to 12.

14. A vehicle characterized by comprising: The vehicle comprises the vehicle body according to claim 13.

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