Threshold beam and vehicle

Abstract

The utility model discloses a doorsill beam and a vehicle. The doorsill beam comprises a doorsill beam body, the reinforcing beam comprises a first reinforcing piece, a second reinforcing piece, a third reinforcing piece and a fourth reinforcing piece, the first reinforcing piece and the second reinforcing piece are made of metal materials, and the third reinforcing piece and the fourth reinforcing piece are made of fiber materials with the tensile strength larger than or equal to 1000 MPa; the first reinforcing piece comprises a first main body part and a first extension part, the first extension part is arranged on the first main body part, the second reinforcing piece comprises a second main body part and a second extension part, and the second extension part is arranged on the second main body part. The minimum distance from the second extension part to the first main body part is smaller than the maximum distance from the first extension part to the first main body part, the left end of the third reinforcer is connected with the first main body part, the right end of the third reinforcer is connected with the second main body part, and the left end of the fourth reinforcer is connected with the second extension part and the right end of the fourth reinforcer is connected with the first extension part. The utility model has the advantages of high collision safety, light weight and low maintenance cost.

Description

Technical Field

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

[0002] With the increasing prevalence of aluminum car bodies, improving vehicle collision safety has become a significant challenge. Existing technologies incorporate a reinforcing beam within the door sill beam. This beam is a single-piece aluminum profile with an internal mesh structure. Different mesh shapes and sizes enhance energy absorption, providing cushioning protection for the passenger compartment and battery pack in side-impact collisions. However, to ensure adequate cushioning and collision safety, the reinforcing beam's cross-sectional area is often substantial, resulting in significant weight. This often compromises collision safety and overall weight, and even partial damage after a collision necessitates replacement of the entire beam, leading to high repair costs. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a door sill beam that offers high collision safety and is lightweight. Furthermore, in the event of damage from a collision, only the damaged parts of the reinforcing beam need to be replaced, rather than the entire beam, resulting in low maintenance costs.

[0004] This utility model also proposes a vehicle having the aforementioned door sill beam.

[0005] The threshold beam according to the first aspect of the present invention includes:

[0006] A sill beam body, wherein an internal cavity is provided for the sill beam body;

[0007] A reinforcing beam is disposed within the receiving cavity. The reinforcing beam includes a first reinforcing member, a second reinforcing member, a third reinforcing member, and a fourth reinforcing member. The first and second reinforcing members are made of metal and are arranged opposite each other on the left and right sides. The third and fourth reinforcing members are made of fiber material with a tensile strength greater than or equal to 1000 MPa and are arranged opposite each other on the top and bottom sides.

[0008] The first reinforcing member includes a first main body and a first extension. The first extension is disposed on the side of the first main body near the second reinforcing member. The second reinforcing member includes a second main body and a second extension. The second extension is disposed on the side of the second main body near the first reinforcing member and extends in the left-right direction. The minimum distance between the second extension and the first main body is less than the maximum distance between the first extension and the first main body. The left end of the third reinforcing member is connected to the first main body and the right end is connected to the second main body. The left end of the fourth reinforcing member is connected to the second extension and the right end is connected to the first extension.

[0009] The threshold beam according to the embodiment of this utility model has at least the following beneficial effects:

[0010] In this embodiment, the threshold beam has an internal reinforcing beam composed of multiple connected components. The first and second reinforcing members are made of metal, while the third and fourth reinforcing members are made of fiber material with a tensile strength greater than or equal to 1000 MPa. The left end of the third reinforcing member is connected to the first main body of the first reinforcing member, and the right end is connected to the second main body of the second reinforcing member. The left end of the fourth reinforcing member is connected to the second extension of the second reinforcing member, and the right end is connected to the first extension of the first reinforcing member. This reverses the installation method of the third and fourth reinforcing members, resulting in both tensile and compressive stress upon impact. Metal materials have strong resistance to compression, while fiber material with a tensile strength greater than or equal to 1000 MPa has strong tensile resistance. Because of its lightweight nature, the aforementioned structure decomposes the impact force on the reinforcing beam into compressive force on the metal material and tensile force on part of the fiber material, fully utilizing the characteristics of both materials. This results in a reinforcing beam with high strength and high collision safety. Furthermore, the lightweight nature of the fiber material allows the reinforcing beam to maintain both high strength and light weight. Additionally, since the reinforcing beam is not a single-piece structure, only the damaged parts need to be replaced when it is damaged, rather than replacing the entire beam. Moreover, because the third and fourth reinforcing members experience opposite forces (tension and compression) during an impact, they will not fail simultaneously. Even if some components of the reinforcing beam are damaged in a less severe collision, not all of them will be destroyed, reducing maintenance costs.

[0011] According to some embodiments of the present invention, the lower side of the reinforcing beam is connected to the lower side of the sill beam body by a connecting component and has a gap;

[0012] And / or, the upper side of the reinforcing beam is connected to the upper side of the sill beam body by a connecting assembly and has a gap;

[0013] And / or, the left side of the reinforcing beam is connected to the left side of the sill beam body via a connecting assembly and has a gap;

[0014] And / or, the right side of the reinforcing beam is connected to the right side of the sill beam body via a connecting assembly, and has a gap.

[0015] According to some embodiments of the present invention, the connecting assembly includes an elastic gasket and a fastener, the elastic gasket being disposed within the gap, and the fastener passing through the elastic gasket and connecting the sill beam body to the reinforcing beam.

[0016] According to some embodiments of the present invention, the connecting assembly includes an elastic gasket and a fastener. The elastic gasket is disposed within the gap, and the fastener passes through the reinforcing beam and is provided with a shock-absorbing structure between the inner wall of the receiving cavity. The shock-absorbing structure is elastic.

[0017] According to some embodiments of the present invention, the connecting assembly includes an elastic washer and a fastener, the elastic washer being disposed within the gap, and the fastener passing through the upper and lower sides of the fourth reinforcing member having the third reinforcing member respectively.

[0018] According to some embodiments of the present invention, the connecting component includes an elastic gasket and a fastener, the elastic gasket being disposed within the gap, and the fastener passing through the first extension portion and the first main body portion at an acute angle, and / or the second extension portion and the second main body portion at an acute angle.

[0019] According to some embodiments of the present invention, the connecting assembly includes an elastic washer and a fastener, the elastic washer being disposed within the gap, the fastener passing through in a direction away from the first main body portion, the cross-sectional area of ​​the first extension portion decreasing, and / or, in a direction away from the second main body portion, the cross-sectional area of ​​the second extension portion decreasing.

[0020] According to some embodiments of the present invention, the connecting assembly includes an elastic washer and a fastener, the elastic washer being disposed within the gap, and the fastener passing through the gap. The first reinforcing member and the second reinforcing member are made of aluminum, and / or the third reinforcing member and the fourth reinforcing member are made of carbon fiber.

[0021] According to some embodiments of the present invention, the connecting assembly includes an elastic washer and a fastener, the elastic washer being disposed within the gap, and the fastener being horizontally disposed passing through the third reinforcing member and / or the fourth reinforcing member.

[0022] The vehicle according to the second aspect of the present invention includes the sill beam described above; since the vehicle includes the sill beam described above, it has all the beneficial effects of the sill beam.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 This is a schematic diagram of the internal structure of the threshold beam according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the reinforcing beam according to an embodiment of the present invention.

[0027] Icon labels:

[0028] Threshold beam body 100, receiving cavity 101, first plate 110, second plate 120;

[0029] Reinforcing beam 200, first reinforcing member 210, first main body 211, first extension 212, second reinforcing member 220, second main body 221, second extension 222, third reinforcing member 230, fourth reinforcing member 240;

[0030] Connecting component 300, fastener 310, elastic washer 320;

[0031] 400mm shock absorber. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] In existing technologies, to improve vehicle collision safety, a reinforcing beam is typically installed inside the door sill beam. This reinforcing beam is a one-piece aluminum profile with a mesh structure inside. By designing meshes of different shapes and sizes, the energy absorption effect of the reinforcing beam can be improved. When a side collision occurs, the reinforcing beam can provide cushioning protection for the passenger compartment and battery pack. However, in existing structural designs, to ensure sufficient cushioning and collision safety, the cross-sectional area of ​​the reinforcing beam is often quite large, resulting in a significant weight. This means that collision safety and overall weight cannot be simultaneously guaranteed. Furthermore, even if only a portion of the reinforcing beam is damaged after a collision, the entire beam needs to be replaced, leading to high repair costs.

[0037] In response to this problem, this utility model proposes a door sill beam and a vehicle, which can effectively improve the above-mentioned issues.

[0038] The following reference Figure 1 and Figure 2 This invention describes a door sill beam and a vehicle according to embodiments of the present invention.

[0039] According to a first aspect of the present invention, a threshold beam includes: a threshold beam body 100 and a reinforcing beam 200.

[0040] For example, the sill beam body 100 has an internal receiving cavity 101. In some embodiments, the sill beam body 100 includes a first plate 110 and a second plate 120 connected to the right side of the first plate 110, and the receiving cavity 101 is defined between the first plate 110 and the second plate 120.

[0041] A reinforcing beam 200 is disposed within the receiving cavity 101. The reinforcing beam 200 includes a first reinforcing member 210, a second reinforcing member 220, a third reinforcing member 230, and a fourth reinforcing member 240. The first reinforcing member 210 and the second reinforcing member 220 are both made of metal material and are arranged opposite each other from left to right. In this embodiment, the first reinforcing member 210 is on the left and the second reinforcing member 220 is on the right. In addition, the third reinforcing member 230 and the fourth reinforcing member 240 are both made of fiber material with a tensile strength greater than or equal to 1000 MPa and are arranged opposite each other from top to bottom. It should be noted that metal material has strong resistance to compression, while fiber material with a tensile strength greater than or equal to 1000 MPa has strong tensile strength and also has the advantage of being lightweight.

[0042] The first reinforcing member 210 includes a first main body 211 and a first extension 212. The first main body 211 is disposed on the left side of the receiving cavity 101, close to the first plate 110. The first extension 212 is disposed on the side of the first main body 211 close to the second reinforcing member 220, that is, the first extension 212 is disposed on the right side of the first main body 211. The first extension 212 and the first main body 211 are integrally formed.

[0043] The second reinforcing member 220 includes a second main body portion 221 and a second extension portion 222. The second main body portion 221 and the second extension portion 222 are integrally formed. The second main body portion 221 is located on the right side of the receiving cavity 101, near the second plate 120. The second extension portion 222 is located on the side of the second main body portion 221 near the first reinforcing member 210, that is, on the left side of the second main body portion 221. Furthermore, in the left-right direction, the minimum distance from the second extension portion 222 to the first main body portion 211 is less than the maximum distance from the first extension portion 212 to the first main body portion 211, i.e., as shown... Figure 1 As shown, the distance from the leftmost end of the second extension 222 to the first main body 211 is less than the distance from the rightmost end of the first extension 212 to the first main body 211, so that the second extension 222 and the first extension 212 are staggered. It should be noted that the second reinforcing member 220 and the first reinforcing member 210 are spaced apart in the left-right direction, that is, the second reinforcing member 220 and the first reinforcing member 210 do not directly abut against each other.

[0044] The left end of the third reinforcing member 230 is connected to the first main body 211 and the right end is connected to the second main body 221. That is, the left end of the third reinforcing member 230 is connected to the first reinforcing member 210 and the right end is connected to the second reinforcing member 220.

[0045] The left end of the fourth reinforcing member 240 is connected to the second extension 222 and the right end is connected to the first extension 212. That is, the left end of the fourth reinforcing member 240 is connected to the second reinforcing member 220 and the right end is connected to the first reinforcing member 210. The installation method of the fourth reinforcing member 240 is opposite to that of the third reinforcing member 230. In this way, when subjected to a side collision, the fourth reinforcing member 240 and the third reinforcing member 230 can be subjected to different stresses, including tension and compression.

[0046] The threshold beam of this embodiment has an internal reinforcing beam 200 composed of multiple components, including a first reinforcing member 210, a second reinforcing member 220, a third reinforcing member 230, and a fourth reinforcing member 240. The first and second reinforcing members 210 and 220 are made of metal, while the third and fourth reinforcing members 230 and 240 are made of fiber material with a tensile strength greater than or equal to 1000 MPa. The left end of the third reinforcing member 230 is connected to the first main body 211 of the first reinforcing member 210, and the right end is connected to the second main body 221 of the second reinforcing member 220. The left end of the fourth reinforcing member 240 is connected to the second extension 222 of the second reinforcing member 220, and the right end is connected to the first extension 212 of the first reinforcing member 210. This reverses the installation method of the third and fourth reinforcing members 230, resulting in both tensile and compressive stresses during impact. Due to the strong compressive strength and high tensile strength of the metal material, the third and fourth reinforcing members 230 and 240 are designed to withstand both compressive and compressive forces. Fiber materials with a tensile strength of 1000 MPa or higher are strong and lightweight. Therefore, the above structure can decompose the impact force on the reinforcing beam 200 into the compressive force on the metal material and part of the tensile force on the fiber material, giving full play to the characteristics of both materials. This results in the reinforcing beam 200 having high strength and high collision safety. At the same time, due to the light weight of the fiber material, the reinforcing beam 200 has the advantages of both high strength and light weight. In addition, since the reinforcing beam 200 is not a one-piece structure, when the reinforcing beam 200 is damaged, only the damaged parts need to be replaced, without replacing the whole beam. Furthermore, since the third reinforcing member 230 and the fourth reinforcing member 240 are subjected to two opposite forces, tension and compression, they will not be damaged simultaneously. In the event of a less severe collision, even if the components of the reinforcing beam 200 are damaged, they will not all be damaged, thus reducing maintenance costs.

[0047] Furthermore, it is understandable that even if a part of a traditional one-piece structure is reinforced, the entire structure needs to be replaced after deformation. However, the reinforcing beam 200 inside the sill beam in this embodiment is not a one-piece structure. Therefore, during the design, the strength of the fourth reinforcing member 240 and the third reinforcing member 230 can be increased so that when the reinforcing beam 200 is damaged by a collision, generally only the first reinforcing member 210 or the second reinforcing member 220 will deform and fail. When repairing or replacing, only the damaged first reinforcing member 210 or the second reinforcing member 220 needs to be replaced, thereby reducing maintenance costs. In addition, even if the fourth reinforcing member 240 and the third reinforcing member 230 are damaged, due to the different stress patterns, the third reinforcing member 230 and the fourth reinforcing member 240 will not be completely damaged.

[0048] In some embodiments of this utility model, the first reinforcing member 210 and the second reinforcing member 220 can both be made of aluminum, which has strong resistance to extrusion and is relatively lightweight among metal materials. The third reinforcing member 230 and the fourth reinforcing member 240 can both be made of carbon fiber, which typically has a tensile strength of over 3500 MPa, exhibiting strong tensile properties while being lightweight. The combination of aluminum and carbon fiber fully utilizes the characteristics of both materials, resulting in a reinforcing beam 200 that is both highly strong and lightweight. Furthermore, the third reinforcing member 230 and the fourth reinforcing member 240 can be configured as plate structures with a maximum deflection greater than 20 mm to prevent easy breakage during bending. The angle between the internal fiber distribution direction and the left-right direction is less than 45 degrees, thus enabling them to withstand side impacts from various angles in most cases. It is conceivable that the third reinforcing member 230 and the fourth reinforcing member 240 could also be made of Kevlar fiber, which has a tensile strength of up to 4.5 GPa and also possesses the advantage of being lightweight.

[0049] In some embodiments of this utility model, the fourth reinforcing member 240 has a third reinforcing member 230 on its upper and lower sides respectively. This allows the reinforcing beam 200 to have higher structural stability and collision safety by having different stress patterns between the fourth reinforcing member 240 and the third reinforcing member 230. Taking a fourth reinforcing member 240 located in the middle of the height direction of the reinforcing beam 200, and a third reinforcing member 230 located at the top and bottom of the reinforcing beam 200, with the collision force coming from the right side as an example, during a collision, due to the constraint of the sill beam body 100, the first reinforcing member 210 and the second reinforcing member 220 in the reinforcing beam 200 will move towards each other, and the first and second reinforcing members 210 and 220 will be subjected to compressive force. If the collision force is close to the middle of the reinforcing beam 200, the left and right ends of the upper and lower third reinforcing members 230 will move closer to each other, and both the upper and lower third reinforcing members 230 will be subjected to compressive force, while the left and right ends of the middle fourth reinforcing member 240 will move away from each other. When subjected to tensile force, if the impact force is biased towards the upper side of the reinforcing beam 200, the left and right ends of the upper third reinforcing member 230 will move closer together and be subjected to compressive force. The left and right ends of the middle fourth reinforcing member 240 and the lower third reinforcing member 230 will move further apart and be subjected to tensile force. If the impact force is biased towards the lower side of the reinforcing beam 200, the left and right ends of the lower third reinforcing member 230 will move closer together and be subjected to compressive force, while the left and right ends of the middle fourth reinforcing member 240 and the upper third reinforcing member 230 will move further apart and be subjected to tensile force. That is, when the impact force is biased upwards or downwards, in addition to the fourth reinforcing member 240, the third reinforcing member 230 will also be subjected to tensile force, resulting in strong impact resistance. Of course, the number of layers of the third reinforcing member 230 and the fourth reinforcing member 240 in the vertical direction can be increased. The above-mentioned setting of one layer of the fourth reinforcing member 240 and two layers of the third reinforcing member 230 is one of the choices made by comprehensively considering strength and overall material usage. It should be noted that the first layer of fourth reinforcing member 240 may include multiple fourth reinforcing members 240 arranged along the length direction of the sill beam body 100, or the first layer of fourth reinforcing member 240 may include only one fourth reinforcing member 240. The length of the fourth reinforcing member 240 can be matched with the length of the sill beam body 100. The third reinforcing member 230 is also set in the same way.

[0050] In some embodiments of this utility model, the third reinforcing member 230 can be horizontally arranged, and the fourth reinforcing member 240 can also be horizontally arranged. Since the side impact force is generally transmitted from the horizontal direction, making the third reinforcing member 230 horizontally arranged and the fourth reinforcing member 240 horizontally arranged can give full play to the performance of the third reinforcing member 230 and the fourth reinforcing member 240.

[0051] In some embodiments of this utility model, the reinforcing beam 200 is connected to the sill beam body 100 via a connecting component 300, and a gap exists on the connecting side. Specifically, the lower side of the reinforcing beam 200 may be connected to the lower side of the sill beam body 100 via the connecting component 300, with a gap; the upper side of the reinforcing beam 200 may be connected to the upper side of the sill beam body 100 via the connecting component 300, with a gap; the left side of the reinforcing beam 200 may be connected to the left side of the sill beam body 100 via the connecting component 300, with a gap; or the right side of the reinforcing beam 200 may be connected to the right side of the sill beam body 100 via the connecting component 300, with a gap. Of course, depending on the different external structures of the sill beam body 100, the connecting component 300 can be set at appropriate positions to connect the sill beam body 100 and the reinforcing beam 200. The connecting component 300 can be set only on one side of the reinforcing beam 200, or it can be set on multiple sides of the reinforcing beam 200, as in this embodiment. Figure 1 As shown, a connecting component 300 is provided only on the lower left side of the reinforcing beam 200 to connect the reinforcing beam 200 and the sill beam body 100. Furthermore, by providing a gap between the sill beam body 100 and the reinforcing beam 200 on the side where the connecting component 300 is provided, friction or collision caused by vibration between the reinforcing beam 200 and the sill beam body 100 during normal vehicle operation can be reduced, fatigue damage can be reduced, and thus the sill beam body 100 and the reinforcing beam 200 can be protected. It is evident that a gap can be provided not only on the side where the connecting component 300 is provided, but also on other sides of the reinforcing beam 200 where the connecting component 300 is not provided, between the reinforcing beam 200 and the sill beam body 100 to reduce direct contact between the reinforcing beam 200 and the sill beam body 100.

[0052] Furthermore, the connecting assembly 300 includes an elastic washer 320 and a fastener 310. The elastic washer 320 is disposed within the gap, with its two ends abutting against the reinforcing beam 200 and the sill beam body 100, respectively. The fastener 310 passes through the elastic washer 320 and connects the reinforcing beam 200 and the sill beam body 100. By providing the elastic washer 320, on the one hand, the reinforcing beam 200 and the sill beam body 100 can be spaced apart to leave a gap; on the other hand, because the elastic washer 320 is elastic, it can buffer the connection between the reinforcing beam 200 and the sill beam body 100, reducing noise. It is conceivable that the elastic washer 320 can be made of rubber material, and the fastener 310 can be a bolt.

[0053] In some embodiments of this utility model, a shock-absorbing structure is provided between the reinforcing beam 200 and the inner wall of the receiving cavity 101. This shock-absorbing structure is elastic, and by providing an elastic shock-absorbing structure, it can act as a shock absorber and buffer between the reinforcing beam 200 and the sill beam body 100, reducing noise. It is conceivable that the shock-absorbing structure can be a shock-absorbing adhesive 400, which can be provided in a portion of the area around the reinforcing beam 200. Alternatively, the shock-absorbing adhesive 400 can fill the space between the reinforcing beam 200 and the sill beam body 100. In this case, there is no longer a gap between the reinforcing beam 200 and the sill beam body 100.

[0054] In some embodiments of this utility model, the first extension 212 and the first main body 211 can be distributed at an acute angle, and the second extension 222 and the second main body 221 can also be distributed at an acute angle. This arrangement can improve the energy absorption effect. When subjected to a side collision, energy absorption mainly relies on the deformation and compression of the first reinforcing member 210 and the second reinforcing member 220. The easier it is to deform, the better the energy absorption effect. Therefore, making the first extension 212 and the first main body 211 distributed at an acute angle makes the first reinforcing member 210 easier to deform than making it at a right angle. Similarly, making the second extension 222 and the second main body 221 distributed at an acute angle makes the second reinforcing member 220 easier to deform, thereby improving the energy absorption effect.

[0055] In some embodiments of this utility model, the cross-sectional area of ​​the first extension 212 decreases along the direction away from the first main body 211, and the second extension 222 can also be similarly configured, that is, the cross-sectional area of ​​the second extension 222 decreases along the direction away from the second main body 221. The cross-sectional area of ​​the first extension 212 decreases along the direction away from the first main body 211, meaning the cross-sectional area of ​​the left end of the first extension 212 is greater than the cross-sectional area of ​​the right end of the first extension 212. The advantage is that the larger cross-sectional area at the left end ensures the strength at the connection between the first extension 212 and the first main body 211, while the smaller cross-sectional area at the right end facilitates the assembly of the bolt structure if a bolt structure is used to install the fourth reinforcing member 240. Obviously, the advantage of the second extension 222's cross-sectional area decreasing along the direction away from the second main body 221 can be derived from the advantages mentioned above, and will not be elaborated upon here.

[0056] In some specific embodiments, the first extension 212 is located at the top of the first main body 211 and is inclined downward to the right. The second extension 222 is located at the bottom of the second main body 221 and is inclined upward to the left. A third reinforcing member 230 is connected between the top of the first main body 211 and the top of the second main body 221, and between the bottom of the first main body 211 and the bottom of the second main body 221. A fourth reinforcing member 240 is connected between the first extension 212 and the second extension 222. In this way, the components of the reinforcing beam 200 can be enclosed to form a frame structure with two cavities. This frame structure is not only simple in structure and uses less material, but also naturally forms an energy-absorbing box structure, eliminating the need for a separate energy-absorbing box and effectively reducing the volume occupied by the internal structure of the sill beam. Furthermore, the first main body 211 is arranged parallel to the second main body 221, and the first extension 212 is arranged parallel to the second extension 222. In the left-right direction, the maximum distance from the first extension 212 to the first main body 211 is equal to the maximum distance from the second extension 222 to the second main body 221. This allows the first reinforcing member 210 and the second reinforcing member 220 to be designed with the same structure, reducing manufacturing costs. It is conceivable that the connections between the left end of the third reinforcing member 230 and the first main body 211, the right end of the third reinforcing member 230 and the second main body 221, the left end of the fourth reinforcing member 240 and the left end of the second extension 222, and the right end of the fourth reinforcing member 240 and the right end of the first extension 212 can take various forms, such as bolt connections or rivet connections. The specific connection method can be selected according to the actual shape of each component. In some cases, the connection structure between the components of the reinforcing beam 200 and the connection component 300 used to connect the reinforcing beam 200 and the sill beam body 100 are shared.

[0057] The vehicle according to a second aspect embodiment of the present invention includes the aforementioned sill beam. Since the vehicle of this embodiment includes the aforementioned sill beam, it possesses at least all the beneficial effects of a sill beam, which will not be elaborated upon here.

[0058] It is understood that the vehicle in this embodiment of the present invention can be a private car, such as a sedan, SUV, MPV, or pickup truck. The vehicle can also be a commercial vehicle, such as a van, bus, small truck, or large semi-trailer. The vehicle can be a gasoline-powered vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle. Other components and operations of the vehicle according to this embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0060] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A door sill beam, characterized in that, include: A sill beam body, wherein an internal cavity is provided for the sill beam body; A reinforcing beam is disposed within the receiving cavity. The reinforcing beam includes a first reinforcing member, a second reinforcing member, a third reinforcing member, and a fourth reinforcing member. The first and second reinforcing members are made of metal and are arranged opposite each other on the left and right sides. The third and fourth reinforcing members are made of fiber material with a tensile strength greater than or equal to 1000 MPa and are arranged opposite each other on the top and bottom sides. The first reinforcing member includes a first main body and a first extension. The first extension is disposed on the side of the first main body near the second reinforcing member. The second reinforcing member includes a second main body and a second extension. The second extension is disposed on the side of the second main body near the first reinforcing member and extends in the left-right direction. The minimum distance between the second extension and the first main body is less than the maximum distance between the first extension and the first main body. The left end of the third reinforcing member is connected to the first main body and the right end is connected to the second main body. The left end of the fourth reinforcing member is connected to the second extension and the right end is connected to the first extension.

2. The sill beam according to claim 1, characterized in that: The lower side of the reinforcing beam is connected to the lower side of the sill beam body via a connecting assembly, and there is a gap between them; And / or, the upper side of the reinforcing beam is connected to the upper side of the sill beam body by a connecting assembly and has a gap; And / or, the left side of the reinforcing beam is connected to the left side of the sill beam body via a connecting assembly and has a gap; And / or, the right side of the reinforcing beam is connected to the right side of the sill beam body via a connecting assembly, and has a gap.

3. The sill beam according to claim 2, characterized in that: The connecting assembly includes an elastic gasket and a fastener. The elastic gasket is disposed within the gap, and the fastener passes through the elastic gasket and connects the sill beam body to the reinforcing beam.

4. The sill beam according to claim 1, characterized in that: A shock-absorbing structure is provided between the reinforcing beam and the inner wall of the receiving cavity, and the shock-absorbing structure is elastic.

5. The sill beam according to claim 1, characterized in that: The third reinforcing member is located on both the upper and lower sides of the fourth reinforcing member.

6. The sill beam according to claim 1, characterized in that: The first extension portion is distributed at an acute angle to the first main body portion, and / or the second extension portion is distributed at an acute angle to the second main body portion.

7. The sill beam according to claim 1, characterized in that: The cross-sectional area of ​​the first extension decreases in the direction away from the first main body, and / or the cross-sectional area of ​​the second extension decreases in the direction away from the second main body.

8. The sill beam according to claim 1, characterized in that: The first and second reinforcing members are made of aluminum, and / or the third and fourth reinforcing members are made of carbon fiber.

9. The sill beam according to claim 1, characterized in that: The third and / or fourth reinforcing members are horizontally positioned.

10. A vehicle, characterized in that, Includes the threshold beam as described in any one of claims 1 to 9.

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