Casting, subframe and vehicle

Abstract

A casting (200), a subframe (100) and a vehicle. The casting (200) comprises: a base beam (1), a structural cavity being formed inside the base beam (1); and a die-casting portion, which is arranged on at least a portion of the periphery of the base beam (1) and is cast as a single piece with the base beam (1).

Description

Castings, subframes and vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311250691.6 and application date September 25, 2023, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to, but is not limited to, the field of vehicles, and in particular to a casting, a subframe, and a vehicle. Background Art

[0004] Castings are widely used. Vacuum high-pressure aluminum casting can be quickly molded and improve production efficiency. However, vacuum high-pressure aluminum casting is more suitable for thin-walled products and cannot achieve hollow structures, resulting in poor structural strength and rigidity. In addition, when castings are used in vehicle subframes, the inability to achieve a hollow structure reduces the subframe's NVH (noise, vibration and harshness), dynamic and static rigidity, strength, and durability.

[0005] In addition, although the low-pressure aluminum casting process can achieve a hollow structure in the subframe, the low-pressure aluminum casting process has low production efficiency when manufacturing the subframe, requires a large number of replicated molds, and has high investment costs in production equipment and site.

[0006] Therefore, how to realize a hollow structure in a high-pressure cast aluminum subframe, improve the structural strength and rigidity of the subframe, reduce the manufacturing cost of the subframe, and improve the manufacturing efficiency of the subframe has become an urgent problem to be solved in this field.

[0007] Application Contents

[0008] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0009] One objective of the present application is to provide a casting. The casting according to the present application comprises a hollow base beam embedded within a structural cavity, pre-embedded within a mold, and then, using high-pressure aluminum casting technology, a casting portion disposed on at least a portion of the periphery of the base beam. This allows the hollow base beam to be embedded within the casting, thereby achieving a hollow structure within the high-pressure aluminum casting and improving the structural strength and rigidity of the casting.

[0010] The present application also provides a subframe having the above casting.

[0011] The present application also provides a vehicle having the above-mentioned subframe.

[0012] The casting according to the present application includes: a base beam having a structural cavity formed therein; and a die-cast portion, which is arranged on at least a portion of the periphery of the base beam and is cast as an integral part with the base beam.

[0013] According to the casting of the present application, a structural cavity is provided in the base beam, and the structural cavity penetrates the base beam in the length direction of the base beam, so that the internal structure of the base beam is a hollow structure. The base beam is pre-embedded in the mold, and then a high-pressure aluminum casting process is adopted to wrap the casting part around at least part of the outer periphery of the base beam, and the casting part and the base beam are constructed as an integrated structure, so that the internal structure of the casting is a hollow structure, thereby improving the structural strength and rigidity of the casting. Moreover, when the casting is set on the subframe, a hollow structure is set on the high-pressure cast aluminum subframe, thereby improving the structural strength and rigidity of the subframe, and effectively improving the NVH (noise, vibration and harshness) performance of the subframe, thereby improving the stability and reliability of the vehicle during operation.

[0014] According to some embodiments of the present application, the die-casting part includes: a casting covering, which is arranged on at least a portion of the periphery of the base beam; a first reinforcing rib and a second reinforcing rib, which are arranged on the casting covering, and the first reinforcing rib and the second reinforcing rib respectively extend along the length direction of the base beam and are arranged at intervals from each other.

[0015] According to some embodiments of the present application, the die-casting part further includes: a third reinforcing rib, wherein the third reinforcing rib is provided on the casting cladding body and the third reinforcing rib is respectively connected to the first reinforcing rib and the second reinforcing rib.

[0016] According to some embodiments of the present application, the first reinforcing rib and the second reinforcing rib are configured to be spaced apart in the first direction of the base beam, and the first end of the first reinforcing rib in the second direction is connected to the first end of the second reinforcing rib in the second direction; and / or the second end of the first reinforcing rib in the second direction is connected to the second end of the second reinforcing rib in the second direction to form a cavity that is open toward away from the base beam.

[0017] According to some embodiments of the present application, the third reinforcing ribs are accommodated in the cavity and are constructed as a plurality of ribs arranged in sequence in the extension direction of the base beam.

[0018] According to some embodiments of the present application, a plurality of the third reinforcing ribs are connected in sequence in the extension direction of the base beam, and the ends of two adjacent third reinforcing ribs close to each other in the second direction are connected to one of the first reinforcing rib and the second reinforcing rib, and the ends of two adjacent third reinforcing ribs far away from each other in the second direction are connected to the other of the first reinforcing rib and the second reinforcing rib.

[0019] According to some embodiments of the present application, the base beam is configured as a tube, and a cross-section of the base beam is configured as a circle, a polygon, a figure surrounded by curves, or a figure surrounded by a combination of straight lines and curves.

[0020] According to the present application, the subframe includes: a first crossbeam, a second crossbeam, a first longitudinal beam and a second longitudinal beam, the first crossbeam and the second crossbeam are spaced apart in the first direction, the first longitudinal beam is respectively connected to the first end of the first crossbeam in the second direction and the first end of the second crossbeam in the second direction, and the second longitudinal beam is respectively connected to the second end of the first crossbeam in the second direction and the second end of the second crossbeam in the second direction; wherein the first crossbeam, the second crossbeam, the first longitudinal beam and / or the second longitudinal beam are constructed as the castings described in any one of the above embodiments, so the first crossbeam or the second crossbeam or the first longitudinal beam or the second longitudinal beam of the subframe according to the present application can be cast into a hollow structure by high-pressure aluminum casting, thereby improving the structural rigidity and strength of the subframe and improving the NVH (noise, vibration and harshness) performance of the subframe.

[0021] According to some embodiments of the present application, a base beam extending in a second direction is formed on the first crossbeam, the structural cavity passes through the base beam in the second direction, and the second direction is orthogonal to the first direction.

[0022] The vehicle according to the present application is provided with the subframe described in any one of the above embodiments. Since the vehicle according to the present application is provided with the subframe described in any one of the above embodiments, the subframe structure strength, stiffness and modality of the vehicle according to the present application are higher, thereby improving the structural strength and stiffness of the vehicle and the NVH (noise, vibration and harshness) performance of the vehicle, and improving the stability and reliability of the vehicle during operation.

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application.

[0024] Still other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic structural diagram of a subframe according to an embodiment of the present application;

[0026] FIG2 is a cross-sectional view taken along line AA in FIG1 ;

[0027] FIG3 is a partial enlarged view of point B in FIG2 ;

[0028] FIG4 is a schematic structural diagram of a base beam according to an embodiment of the present application.

[0029] Reference numerals:

[0030] Subframe 100;

[0031] Casting 200;

[0032] Base beam 1, casting covering body 11, first reinforcing rib 12, first extension portion 121, second reinforcing rib 13, second extension portion 131, third reinforcing rib 14;

[0033] A first transverse beam 21 , a second transverse beam 22 , a first longitudinal beam 23 , and a second longitudinal beam 24 . DETAILED DESCRIPTION

[0034] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0035] Castings are widely used. Vacuum high-pressure aluminum casting can be quickly molded and improve production efficiency. However, vacuum high-pressure aluminum casting is more suitable for thin-walled products and cannot achieve hollow structures, resulting in poor structural strength and rigidity. In addition, when castings are used in vehicle subframes, the inability to achieve a hollow structure reduces the subframe's NVH (noise, vibration and harshness), dynamic and static rigidity, strength, and durability.

[0036] In addition, although the low-pressure aluminum casting process can achieve a hollow structure in the subframe, the low-pressure aluminum casting process has low production efficiency when manufacturing the subframe, requires a large number of replicated molds, and has high investment costs in production equipment and site.

[0037] Therefore, how to realize a hollow structure in a high-pressure cast aluminum subframe, improve the structural strength and rigidity of the subframe, reduce the manufacturing cost of the subframe, and improve the manufacturing efficiency of the subframe has become an urgent problem to be solved in this field.

[0038] A casting 200 according to an embodiment of the present application will be described below with reference to FIG. 1 to FIG. 4 .

[0039] The casting 200 according to the present application includes: a base beam 1 and a die-casting portion, wherein a structural cavity is formed inside the base beam 1; the die-casting portion is arranged on at least a portion of the periphery of the base beam 1 and is cast as an integral part with the base beam 1.

[0040] It should be noted that the casting 200 proposed in this application can be used for, but not limited to, subframes, longitudinal beams, cross beams, door sill beams, etc. This application uses the casting 200 used for a subframe as an example for description.

[0041] In order to improve the manufacturing efficiency of the aluminum subframe and reduce the manufacturing cost of the aluminum subframe, the aluminum subframe in this application is manufactured by high-pressure aluminum casting process. In order to solve the problem that the traditional high-pressure aluminum casting process cannot achieve a hollow structure, the casting 200 in this application consists of a base beam 1 and a die-casting part. A structural cavity is provided in the base beam 1. The structural cavity penetrates the base beam 1 in the length direction of the base beam 1, so that the internal structure of the base beam 1 is a hollow structure. The structural cavity also has a weight-reducing effect, reducing the mass of the base beam. The base beam 1 is pre-embedded in the mold, and then high-pressure casting is used. The die-cast aluminum process wraps the casting part around at least a portion of the outer periphery of the base beam 1, and makes the casting part and the base beam 1 form an integrated structure, so that the internal structure of the casting 200 is a hollow structure, thereby improving the structural strength and rigidity of the casting 200. Moreover, when the casting 200 is set on the subframe, it is realized to set a hollow structure on the high-pressure cast aluminum subframe, thereby improving the structural strength and rigidity of the subframe, and effectively improving the NVH (noise, vibration and harshness) performance of the subframe, thereby enhancing the stability and reliability of the vehicle during operation.

[0042] In addition, the present application can realize the provision of a hollow structure in the high-pressure aluminum casting process, and the high-pressure aluminum casting process in the present application can be applied to the subframe and the vehicle, thereby improving the production efficiency of the subframe, reducing the investment cost of production equipment and site, and reducing the production and manufacturing cost, thereby solving the problems of low production efficiency, the need for a large number of duplicate molds and production equipment, and high site investment cost when manufacturing the subframe using the low-pressure aluminum casting process.

[0043] According to the casting 200 of the present application, a structural cavity is provided in the base beam 1, and the structural cavity penetrates the base beam 1 in the length direction of the base beam 1, so that the internal structure of the base beam 1 is a hollow structure. The base beam 1 is pre-embedded in the mold, and then a high-pressure aluminum casting process is adopted to wrap the casting part around at least part of the outer periphery of the base beam 1, and the casting part and the base beam 1 are constructed as an integral structure, so that the internal structure of the casting 200 is a hollow structure, thereby improving the structural strength and rigidity of the casting 200. Moreover, when the casting 200 is set on the subframe, the hollow structure is set on the high-pressure cast aluminum subframe, thereby improving the structural strength and rigidity of the subframe, and effectively improving the NVH (noise, vibration and harshness) performance of the subframe, thereby improving the stability and reliability of the vehicle during operation.

[0044] According to some embodiments of the present application, the die-casting part includes: a casting covering 11, a first reinforcing rib 12 and a second reinforcing rib 13, and the casting covering 11 is arranged on at least a portion of the periphery of the base beam 1; the first reinforcing rib 12 and the second reinforcing rib 13 are arranged on the casting covering 11, and the first reinforcing rib 12 and the second reinforcing rib 13 extend respectively along the length direction of the base beam 1 and are arranged at intervals from each other.

[0045] In some specific embodiments, the die-cast part is composed of a casting coating 11, a first reinforcement rib 12 and a second reinforcement rib 13. The casting coating 11 is wrapped around at least part of the periphery of the base beam 1. The casting coating 11 connects the die-cast part to the base beam 1. The casting coating 11 can increase the overall wall thickness of the base beam 1, improve the structural strength and rigidity of the base beam 1, and enhance the load-bearing capacity of the base beam 1. During the high-pressure aluminum casting process, the casting coating 11 can be integrated with the base beam 1, further improving the stability and reliability of the connection between the die-cast part and the base beam 1.

[0046] The first reinforcing ribs 12 and the second reinforcing ribs 13 are respectively arranged on both sides of the casting covering body 11 in the width direction and extend along the length direction of the base beam 1, thereby increasing the connection area between the first reinforcing ribs 12, the second reinforcing ribs 13 and the casting covering body 11. When the base beam 1 is subjected to external force, the force can be distributed more evenly and quickly to the first reinforcing ribs 12 and the second reinforcing ribs 13, effectively preventing the base beam 1 from being deformed due to excessive force at a certain point, thereby improving the structural strength and rigidity of the base beam 1; when applied to the subframe, the first reinforcing ribs 12 and the second reinforcing ribs 13 can also connect the casting 200 with other structures on the subframe.

[0047] The first reinforcing ribs 12, the second reinforcing ribs 13 and the casting covering body 11 can be constructed as an integral structure. On the one hand, there is no gap at the connection between the first reinforcing ribs 12 and the second reinforcing ribs 13 and the casting covering body 11, which improves the stability and reliability of the connection between the first reinforcing ribs 12, the second reinforcing ribs 13 and the casting covering body 11. On the other hand, the first reinforcing ribs 12, the second reinforcing ribs 13 and the casting covering body 11 can be made by the same mold, which reduces the number of mold openings and manufacturing steps, and reduces manufacturing costs.

[0048] According to some embodiments of the present application, the die-casting portion further includes: a third reinforcing rib 14 , which is disposed on the casting envelope 11 and is connected to the first reinforcing rib 12 and the second reinforcing rib 13 , respectively.

[0049] In some embodiments, a third reinforcing rib 14 is further provided on the die-casting part, and the third reinforcing rib 14 is provided on at least part of the periphery of the casting enclosure 11. One end of the third reinforcing rib 14 is connected to the first reinforcing rib 12, and the other end of the third reinforcing rib 14 is connected to the second reinforcing rib 13. On the one hand, the structural strength and rigidity of the casting 200 can be enhanced without increasing the overall thickness of the casting 200, so that the casting 200 can better maintain stability and shape integrity when subjected to external force; on the other hand, by providing the third reinforcing rib 14 on the surface of the casting enclosure 11, when the casting 200 is subjected to external force, the third reinforcing rib 14 can share part of the force for the casting 200, and at the same time, the force can also be transmitted to the first reinforcing rib 12 and the second reinforcing rib 13 through the third reinforcing rib 14, so that the force distribution of the casting 200 is more uniform, the stress concentration phenomenon in the casting 200 is reduced, the bending and compression resistance of the casting 200 can be improved, and the casting 200 can be effectively prevented from being deformed by force.

[0050] According to some embodiments of the present application, the first reinforcing rib 12 and the second reinforcing rib 13 are constructed to be spaced apart in the first direction of the base beam 1, and the first end of the first reinforcing rib 12 in the second direction and the first end of the second reinforcing rib 13 in the second direction are connected; and / or the second end of the first reinforcing rib 12 in the second direction and the second end of the second reinforcing rib 13 in the second direction are connected to form a body cavity that is open toward away from the base beam 1.

[0051] In some specific embodiments, a first reinforcing rib 12 is provided on one side of the base beam 1 in the first direction, and a second reinforcing rib 13 is provided on the other side of the base beam 1 in the first direction. The first reinforcing rib 12 and the second reinforcing rib 13 are arranged at intervals. The first reinforcing rib 12 is respectively formed with a first end and a second end in the second direction, and the second reinforcing rib 13 is respectively formed with a first end and a second end in the second direction. The first end of the first reinforcing rib 12 and the first end of the second reinforcing rib 13 are arranged on the same side, the second end of the first reinforcing rib 12 and the second end of the second reinforcing rib 13 are arranged on the same side, and the first reinforcing rib The first end of the first reinforcement rib 12 is connected to the first end of the second reinforcement rib 13, and the second end of the first reinforcement rib 12 is connected to the second end of the second reinforcement rib 13. The first reinforcement rib 12, the second reinforcement rib 13 and the casting covering body 11 jointly define an open cavity, which can be used to accommodate the third reinforcement rib 14. The cavity is open in the direction away from the base beam 1, and a top-open cavity is formed between the first reinforcement rib 12 and the second reinforcement rib 13, so that the first reinforcement rib 12 and the second reinforcement rib 13 can bear more force, further enhancing the structural strength and rigidity of the casting 200.

[0052] In other embodiments, the first end of the first reinforcing rib 12 is connected to the first end of the second reinforcing rib 13, and the second end of the first reinforcing rib 12 is opposite and spaced from the second end of the second reinforcing rib 13. The second ends of the first reinforcing rib 12 and the second ends of the second reinforcing rib 13 are respectively extended to form a first extension portion 121 extending along the first direction at the second end of the first reinforcing rib 12, and a second extension portion 131 extending along the first direction at the second end of the second reinforcing rib 13. The first extension portion 121 and the second extension portion 131 are arranged parallel to each other, thereby making the cavity structure enclosed by the first and second reinforcing ribs 12, 13 more stable. When applied to a subframe, the first and second reinforcing ribs 12, 13 can transmit forces acting on the base beam 1 from two different directions to other components on the subframe via the first and second extension portions 121, 131, further enhancing the impact resistance and load-bearing capacity of the casting 200. It should be understood that the term "extending in the first direction" is not limited to being parallel to the first direction. The extending direction can be at a certain angle to the first direction or can be parallel to the first direction.

[0053] According to some embodiments of the present application, the third reinforcing ribs 14 are accommodated in the cavity and are configured as a plurality of third reinforcing ribs 14 sequentially arranged in the extending direction of the base beam 1 .

[0054] In some specific embodiments, the third reinforcing ribs 14 can be arranged on the inner wall of the cavity, and the third reinforcing ribs 14 can be constructed as a plurality of third reinforcing ribs 14 arranged in an interlaced manner in the extension direction of the base beam 1. Arranging a plurality of third reinforcing ribs 14 interlaced with each other on the inner wall of the cavity can further improve the structural strength and rigidity of the casting 200. At least two adjacent third reinforcing ribs 14 intersect and form an intersection, so that the third reinforcing ribs 14 can reinforce the structure of the casting 200 in multiple different directions. The intersecting third reinforcing ribs 14 can evenly bear the force received by each other, so that the force received by the multiple third reinforcing ribs 14 is more balanced. Since the extension directions of the multiple third reinforcing ribs 14 are different, the force received by the casting 200 can be transmitted to different directions, further strengthening the structural strength and rigidity of the casting 200 and improving the impact resistance of the casting 200.

[0055] In other specific embodiments, the third reinforcing ribs 14 can be constructed as a plurality of third reinforcing ribs 14 arranged parallel to each other in the extension direction of the base beam 1. When the casting 200 is subjected to external force, the plurality of third reinforcing ribs 14 arranged parallel to each other can transmit the force more evenly and stably along the same direction to different positions of the first reinforcing ribs 12 and the second reinforcing ribs 13, thereby improving the impact resistance of the casting 200 and further strengthening the structural strength and rigidity of the casting 200.

[0056] According to some embodiments of the present application, multiple third reinforcing ribs 14 are connected in sequence in the extension direction of the base beam 1, and the ends of two adjacent third reinforcing ribs 14 close to each other in the second direction are connected to one of the first reinforcing rib 12 and the second reinforcing rib 13, and the ends of two adjacent third reinforcing ribs far away from each other in the second direction are connected to the other of the first reinforcing rib 12 and the second reinforcing rib 13. On the one hand, the force applied to one of the third reinforcing ribs 14 can be quickly transmitted to other third reinforcing ribs 14, so that the force can be evenly transmitted among the multiple third reinforcing ribs 14, effectively preventing any third reinforcing rib 14 from being broken due to excessive force. On the other hand, while the force is being transmitted between the multiple reinforcing ribs, the force can also be transmitted to the first reinforcing rib 12 and the second reinforcing rib 13 through the connections between the multiple third reinforcing ribs 14 and the first reinforcing rib 12 and the second reinforcing rib 13, further strengthening the structural strength and rigidity of the casting 200 and improving the impact resistance of the casting 200.

[0057] According to some embodiments of the present application, the base beam 1 is configured as a tube, and the cross section of the base beam 1 is configured as a circle, a polygon, a figure surrounded by curves, or a figure surrounded by a combination of straight lines and curves.

[0058] In some specific embodiments, the base beam 1 can be constructed as a circular tube, and the cross-section of the outer peripheral wall of the base beam 1 can be constructed as a circle. Compared with pipes of other shapes, the circular tube has a more uniform strength distribution. Since the circular cross-section of the circular tube has an advantage in pressure distribution, the circular tube can more effectively withstand internal and external pressures, reduce stress concentration, and improve the strength and stability of the casting 200.

[0059] The base beam 1 can also be constructed as a rectangular tube. The cross-section of the outer peripheral wall of the base beam 1 can be constructed as a rectangle. Compared with pipes of other shapes, the rectangular tube has a larger cross-sectional area, so it can withstand greater force under the same load and ensure the stability of the structure. The larger cross-sectional area can also provide greater rigidity and stability, reduce the vibration and structural resonance of the subframe 100 during driving, and improve the NVH (noise, vibration and harshness) performance of the subframe 100.

[0060] The cross section of the base beam 1 can also be constructed as a figure surrounded by a combination of straight lines and curves. For example, the cross section of the base beam 1 can be composed of two parts, one part of which can be constructed as an arc shape, and the other part can be constructed as a polygon.

[0061] The cross section of the base beam 1 can also be configured as an irregular shape. For example, the cross section of the base beam 1 can be configured as a concave shape, a convex shape, or other irregular cross-sectional shapes.

[0062] The subframe 100 according to the present application will be briefly described below.

[0063] According to the present application, the subframe 100 includes: a first crossbeam 21, a second crossbeam 22, a first longitudinal beam 23 and a second longitudinal beam 24. The first crossbeam 21 and the second crossbeam 22 are spaced apart in the first direction. The first longitudinal beam 23 is respectively connected to the first end of the first crossbeam 21 in the second direction and the first end of the second crossbeam 22 in the second direction. The second longitudinal beam 24 is respectively connected to the second end of the first crossbeam in the second direction and the second end of the second crossbeam 22 in the second direction. The first crossbeam 21, the second crossbeam 22, the first longitudinal beam 23 and / or the second longitudinal beam 24 are constructed as the casting 200 described in any one of the above embodiments. Therefore, according to the present application, the first crossbeam 21, the second crossbeam 22, the first longitudinal beam 23 or the second longitudinal beam 24 of the subframe 100 can be cast into a hollow structure by a high-pressure aluminum casting process, thereby improving the structural rigidity and strength of the subframe 100, and improving the NVH (noise, vibration and harshness) performance of the subframe 100.

[0064] The following briefly describes a method for manufacturing the subframe 100 according to the present application.

[0065] In some specific embodiments, the base beam 1 is first processed separately according to the parameters of the required subframe 100 (the manufacturing material and shape of the base beam 1 can be changed according to product requirements), and the processed base beam 1 is pre-embedded in a mold. The mold is generally provided with a limit and fixing structure to limit the movement of the base beam 1 in the mold. After the base beam 1 is placed in the designed position in the mold and fixed, the mold is closed and die-cast using a vacuum high-pressure aluminum casting process. After casting, the excess base beam 1 at the end is cut off as needed, thereby obtaining a subframe 100 with a hollow structure.

[0066] According to some embodiments of the present application, a base beam 1 extending in a second direction is formed on the first crossbeam 21, and a structural cavity passes through the base beam 1 in the second direction. The second direction is orthogonal to the first direction, the second direction is the length direction of the first crossbeam 21, and the first direction is the width direction of the first crossbeam 21, so that the internal structure of the first crossbeam 21 is a hollow structure. Compared with the thin-walled structure of the first crossbeam 21 of the traditional subframe 100, the structural strength and rigidity of the first crossbeam 21 of the present application are higher, thereby improving the structural strength and rigidity of the subframe 100, and improving the NVH (noise, vibration and harshness) performance of the subframe 100.

[0067] In some specific embodiments, the first longitudinal beam 23 and the second longitudinal beam 24 are further provided with a plurality of holes for installation, avoidance or weight reduction, which can reduce the overall weight of the subframe 100 and facilitate the assembly of other components.

[0068] The vehicle according to the present application is briefly described below.

[0069] The vehicle according to the present application is provided with the subframe 100 described in any one of the above embodiments. Since the vehicle according to the present application is provided with the subframe 100 described in any one of the above embodiments, the subframe 100 of the vehicle according to the present application has higher structural strength and rigidity, thereby improving the structural strength and rigidity of the vehicle and the NVH (noise, vibration and harshness) performance of the vehicle, and improving the stability and reliability of the vehicle during operation.

[0070] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0071] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0072] In the description of this application, “plurality” means two or more.

[0073] In the description of the present application, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features being in contact with each other not directly but via another feature therebetween.

[0074] In the description of this application, the phrases “above”, “above” and “above” a first feature of a second feature include the phrases “directly above” and “diagonally above” the second feature, or simply indicate that the first feature is horizontally higher than the second feature. In the description of this specification, descriptions with reference to the terms “one embodiment”, “some embodiments”, “illustrative embodiments”, “examples”, “specific examples”, or “some examples” mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0075] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A casting (200), wherein: include: A base beam (1), wherein a structural cavity is formed inside the base beam (1); A die-casting portion, wherein the die-casting portion is arranged on at least a portion of the periphery of the base beam (1) and is cast as an integral part with the base beam (1).

2. The casting (200) according to claim 1, wherein: The die casting unit comprises: A casting cladding body (11), wherein the casting cladding body (11) is arranged on at least a portion of the outer periphery of the base beam (1); A first reinforcing rib (12) and a second reinforcing rib (13), wherein the first reinforcing rib (12) and the second reinforcing rib (13) are arranged on the casting cladding body (11), and the first reinforcing rib (12) and the second reinforcing rib (13) respectively extend along the length direction of the base beam (1) and are arranged at intervals from each other.

3. The casting (200) according to claim 2, wherein: The die casting unit further comprises: A third reinforcing rib (14), wherein the third reinforcing rib (14) is disposed on the casting cladding body (11) and the third reinforcing rib (14) is respectively connected to the first reinforcing rib (12) and the second reinforcing rib (13).

4. The casting (200) according to claim 3, wherein: The first reinforcing rib (12) and the second reinforcing rib (13) are configured to be spaced apart in a first direction of the base beam (1), and a first end of the first reinforcing rib (12) in a second direction is connected to a first end of the second reinforcing rib (13) in the second direction; and / or The second end of the first reinforcing rib (12) in the second direction and the second end of the second reinforcing rib (13) in the second direction are connected to enclose a cavity open toward and away from the base beam (1).

5. The casting (200) according to claim 4, wherein: The third reinforcing ribs (14) are accommodated in the cavity and are structured as a plurality of ribs arranged in sequence in the extending direction of the base beam (1).

6. The casting (200) according to any one of claims 3 to 5, wherein: The plurality of third reinforcing ribs (14) are sequentially connected in the extension direction of the base beam (1); ends of two adjacent third reinforcing ribs (14) close to each other in the second direction are connected to one of the first reinforcing rib (12) and the second reinforcing rib (13); and ends of two adjacent third reinforcing ribs far from each other in the second direction are connected to the other of the first reinforcing rib (12) and the second reinforcing rib (13).

7. The casting (200) according to any one of claims 1 to 6, wherein: The base beam (1) is constructed in a tubular shape, and the cross section of the base beam (1) is constructed in a circular shape, a polygonal shape, a shape surrounded by a curve, or a shape surrounded by a combination of a straight line and a curve.

8. A subframe (100), wherein: include: A first crossbeam (21) and a second crossbeam (22), wherein the first crossbeam (21) and the second crossbeam (22) are The first direction is spaced apart; a first longitudinal beam (23) and a second longitudinal beam (24), wherein the first longitudinal beam (23) is respectively connected to a first end of the first cross beam (21) in the second direction and a first end of the second cross beam (22) in the second direction; The second longitudinal beam (24) is respectively connected to the second end of the first cross beam (21) in the second direction and the second end of the second cross beam (22) in the second direction; wherein The first cross beam (21), the second cross beam (22), the first longitudinal beam (23) and / or the second longitudinal beam (24) are configured as a casting (200) according to any one of claims 1 to 7.

9. The subframe (100) according to claim 8, wherein: A base beam (1) extending in a second direction is formed on the first crossbeam (21), the structural cavity penetrates the base beam (1) in the second direction, and the second direction is orthogonal to the first direction.

10. A vehicle, wherein: The vehicle comprises a subframe (100) as claimed in any one of claims 8 to 9.

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