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WO2025066771A1 - Pièce coulée, faux cadre et véhicule - Google Patents

Pièce coulée, faux cadre et véhicule Download PDF

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Publication number
WO2025066771A1
WO2025066771A1 PCT/CN2024/115586 CN2024115586W WO2025066771A1 WO 2025066771 A1 WO2025066771 A1 WO 2025066771A1 CN 2024115586 W CN2024115586 W CN 2024115586W WO 2025066771 A1 WO2025066771 A1 WO 2025066771A1
Authority
WO
WIPO (PCT)
Prior art keywords
reinforcing rib
casting
base beam
subframe
present application
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/115586
Other languages
English (en)
Chinese (zh)
Inventor
郑希强
艾涛
马祖国
邓献思
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Zhejiang Zeekr Intelligent Technology Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Zhejiang Zeekr Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Geely Holding Group Co Ltd, Zhejiang Zeekr Intelligent Technology Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Publication of WO2025066771A1 publication Critical patent/WO2025066771A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted

Definitions

  • 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.
  • Vacuum high-pressure aluminum casting can be quickly molded and improve production efficiency.
  • vacuum high-pressure aluminum casting is more suitable for thin-walled products and cannot achieve hollow structures, resulting in poor structural strength and rigidity.
  • the failure to achieve hollow structures reduces the NVH (noise, vibration and harshness), dynamic and static rigidity, strength, and durability of the subframe.
  • the low-pressure aluminum casting process can realize 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 duplicate molds, and has high investment costs in production equipment and sites.
  • One object of the present application is to provide a casting.
  • a structural cavity is set inside a base beam, the base beam is pre-embedded in a mold, and a casting part is set on at least part of the periphery of the base beam by high-pressure aluminum casting technology, so that a hollow base beam is embedded in the casting, and a hollow structure is set on the high-pressure aluminum casting, thereby improving the structural strength and rigidity of the casting.
  • the application also provides a subframe having the casting component.
  • the application also provides a vehicle having the subframe.
  • the casting according to the present application includes: a base beam having a structural cavity formed inside the base beam; and a die-casting 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.
  • a structural cavity is provided in the base beam, and the structural cavity is provided in the length direction of the base beam.
  • the base beam is penetrated upward, so that the internal structure of the base beam is a hollow structure.
  • the base beam is pre-embedded in the mold, and then the high-pressure aluminum casting process is adopted to wrap the casting part around at least a 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, and when the casting is arranged on the sub-frame, it is realized to arrange a hollow structure on the high-pressure cast aluminum sub-frame, thereby improving the structural strength and rigidity of the sub-frame, and effectively improving the NVH (noise, vibration and harshness) performance of the sub-frame, and improving the stability and reliability of the vehicle during operation.
  • NVH noise, vibration and harshness
  • the die-casting part includes: a casting covering body, 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 body, 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.
  • the die-casting part further includes: a third reinforcing rib, wherein the third reinforcing rib is disposed on the casting cladding body and the third reinforcing rib is respectively connected to the first reinforcing rib and the second reinforcing rib.
  • 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 enclose a cavity that is open toward away from the base beam.
  • the third reinforcing rib is accommodated in the cavity and is configured as a plurality of ribs arranged sequentially in the extension direction of the base beam.
  • a plurality of the third reinforcing ribs are connected sequentially in the extension direction of the base beam, and 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 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 and the second reinforcing rib.
  • the base beam is configured as a tube
  • the 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.
  • the subframe according to the present application 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 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.
  • a base beam extending in the second direction is formed on the first crossbeam.
  • the cavity penetrates the base beam in a second direction, and the second direction is orthogonal to the first direction.
  • 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.
  • NVH noise, vibration and harshness
  • FIG1 is a schematic structural diagram of a subframe according to an embodiment of the present application.
  • Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1;
  • FIG3 is a partial enlarged view of point B in FIG2;
  • FIG. 4 is a schematic structural diagram of a base beam according to an embodiment of the present application.
  • Base beam 1 casting covering body 11, first reinforcing rib 12, first extension part 121, second reinforcing rib 13, second extension part 131, third reinforcing rib 14;
  • Vacuum high-pressure aluminum casting can be quickly molded and improve production efficiency.
  • vacuum high-pressure aluminum casting is more suitable for thin-walled products and cannot achieve hollow structures, resulting in poor structural strength and rigidity.
  • the failure to achieve hollow structures reduces the NVH (noise, vibration and harshness), dynamic and static rigidity, strength, and durability of the subframe.
  • the low-pressure aluminum casting process can realize 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 duplicate molds, and has high investment costs in production equipment and sites.
  • a casting 200 according to an embodiment of the present application is described below with reference to FIGS. 1 to 4 .
  • the casting 200 includes: a base beam 1 and a die-casting part, wherein a structural cavity is formed inside the base beam 1; the die-casting part is arranged on at least a part of the periphery of the base beam 1 and is cast as an integral part with the base beam 1.
  • the casting 200 proposed in the present application can be used for but not limited to a subframe, a longitudinal beam, a cross beam, a door sill beam, etc.
  • the present application takes the casting 200 used for a subframe as an example for description.
  • the aluminum subframe in the present application is manufactured by a high-pressure aluminum casting process.
  • the casting 200 in the present 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 a mold, and then a high-pressure die-casting process is used.
  • the die-casting aluminum process wraps the casting part around at least part of the 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, and when the casting 200 is arranged 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 improving the stability and reliability of the vehicle during operation.
  • NVH noise, vibration and harshness
  • the present application can realize the setting 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 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 subframes by low-pressure aluminum casting process.
  • 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 a part of the 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, and when the casting 200 is arranged on the sub-frame, it is realized to arrange a hollow structure on the high-pressure cast aluminum sub-frame, thereby improving the structural strength and rigidity of the sub-frame, and effectively improving the NVH (noise, vibration and harshness) performance of the sub-frame, thereby improving the stability and reliability of the vehicle during operation.
  • NVH noise, vibration and harshness
  • the die-casting part includes: a casting coating 11, a first reinforcing rib 12 and a second reinforcing rib 13, the casting coating 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 coating 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.
  • the die-casting part is composed of a casting covering body 11, a first reinforcing rib 12 and a second reinforcing 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 with 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 improve the load-bearing capacity of the base beam 1.
  • 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.
  • the first reinforcing rib 12 and the second reinforcing rib 13 are respectively arranged on both sides of the casting cladding 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 rib 12, the second reinforcing rib 13 and the casting cladding body 11.
  • the force can be more evenly and quickly distributed to the first reinforcing rib 12 and the second reinforcing rib 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 rib 12 and the second reinforcing rib 13 can also connect the casting 200 with other structures on the subframe.
  • the first reinforcing rib 12, the second reinforcing rib 13 and the casting coating 11 can be constructed as an integral structure. On the one hand, there is no gap at the connection between the first reinforcing rib 12 and the second reinforcing rib 13 and the casting coating 11, which improves the stability and reliability of the connection between the first reinforcing rib 12, the second reinforcing rib 13 and the casting coating 11. On the other hand, the first reinforcing rib 12, the second reinforcing rib 13 and the casting coating 11 can be manufactured by the same mold, which reduces the number of mold openings and manufacturing steps, thereby reducing the manufacturing cost.
  • the die-casting part further includes: a third reinforcing rib 14 , which is disposed on the casting cladding body 11 and is respectively connected to the first reinforcing rib 12 and the second reinforcing rib 13 .
  • a third reinforcing rib 14 is further provided on the die-casting portion, and the third reinforcing rib 14 is provided on at least a portion of the periphery of the casting coating 11, and 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.
  • 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;
  • the third reinforcing rib 14 on the surface of the casting coating 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.
  • the first reinforcement rib 12 and the second reinforcement rib 13 are constructed to be spaced apart in the first direction of the base beam 1, and the first end of the first reinforcement rib 12 in the second direction is connected to the first end of the second reinforcement rib 13 in the second direction; and/or the second end of the first reinforcement rib 12 in the second direction and the second end of the second reinforcement rib 13 in the second direction are connected to enclose a body cavity that is open toward away from the base beam 1.
  • 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 reinforcing rib 12 is respectively formed with a first end and a second end in the second direction
  • 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
  • the first end of the first reinforcing rib 12 is connected to the first end of the second reinforcing rib 13
  • the second end of the first reinforcing rib 12 is connected to the second end of the second reinforcing rib 13,
  • the first reinforcing rib 12, the second reinforcing rib 13 and the casting coating 11 jointly define an open cavity, and the open cavity can be used to accommodate the third reinforcing rib 14, the cavity is open in the direction away from the base beam 1, and a top-
  • the first end of the first reinforcing rib 12 is connected to the first end of the second reinforcing rib 13, the second end of the first reinforcing rib 12 is opposite to the second end of the second reinforcing rib 13 and is arranged at intervals, and the second end of the first reinforcing rib 12 and the second end of the second reinforcing rib 13 are extended respectively, so that a first extension portion 121 extending along the first direction is formed at the second end of the first reinforcing rib 12, and a second extension portion 131 extending along the first direction is formed at the second end of the second reinforcing rib 13, and the first extension portion 121 and the second extension portion 131 are arranged in parallel, so that the cavity structure surrounded by the first reinforcing rib 12 and the second reinforcing rib 13 is more stable.
  • the first reinforcing rib 12 and the second reinforcing rib 13 can transmit the forces on the base beam 1 to other components on the subframe from two different directions through the first extension portion 121 and the second extension portion 131, further enhancing the impact resistance and bearing capacity of the casting 200.
  • extending along the first direction here is not limited to the extension direction being parallel to the first direction, and it can be that the extension direction forms a certain angle with the first direction, or it can be that the extension direction is parallel to the first direction.
  • the third reinforcing ribs 14 are received in the cavity and are configured as a plurality of third reinforcing ribs 14 arranged sequentially in the extension direction of the base beam 1 .
  • 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 plurality of third reinforcing ribs 14 is more balanced. Since the extension directions of the plurality of third reinforcing ribs 14 are different, the force received by the casting 200 can be transmitted to different directions, thereby further enhancing the structural strength and rigidity of the casting 200 and improving the impact resistance of the casting 200.
  • the third reinforcing rib 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.
  • 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 rib 12 and the second reinforcing rib 13, thereby improving the impact resistance of the casting 200 and further strengthening the structural strength and rigidity of the casting 200.
  • a plurality of third reinforcing ribs 14 are sequentially connected in the extension direction of the base beam 1.
  • 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 from each other in the second direction are connected to the other of the first reinforcing rib 12 and the second reinforcing rib 13.
  • the force applied to one of the third reinforcing ribs 14 can be quickly transmitted to the 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.
  • 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.
  • 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 a curve, or a figure surrounded by a combination of a straight line and a curve.
  • the base beam 1 can be constructed as a circular tube, and the cross-section of the outer wall of the base beam 1 can be constructed as a circle.
  • 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.
  • 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.
  • 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.
  • the cross section of the base beam 1 can also be constructed as a figure surrounded by a combination of straight lines and curves.
  • 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.
  • the cross section of the base beam 1 can also be configured as an irregular shape.
  • the cross section of the base beam 1 can be configured as a concave shape, a convex shape or other irregular cross-sectional shapes.
  • the subframe 100 according to the present application will be briefly described below.
  • 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, and 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; wherein 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, so the first crossbeam 21, the second crossbeam 22, the first longitudinal beam 23 or the second longitudinal beam 24 of the subframe 100 according to the present application 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
  • 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 embedded in the mold.
  • the mold is generally provided with a limit position and a fixing structure to limit the movement of the base beam 1 in the mold. After the base beam 1 is placed in the mold and fixed at the designed position, the mold is closed and die-casted 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.
  • a base beam 1 extending in a second direction is formed on the first cross beam 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 cross beam 21
  • the first direction is the width direction of the first cross beam 21, so that the internal structure of the first cross beam 21 is a hollow structure.
  • the first cross beam 21 of the present application has higher structural strength and rigidity, thereby improving the structural strength and rigidity of the sub-frame 100, and improving the NVH (noise, vibration and harshness) performance of the sub-frame 100.
  • a plurality of holes for installation, avoidance or weight reduction are provided on the first longitudinal beam 23 and the second longitudinal beam 24, which can reduce the overall weight of the sub-frame 100 and facilitate the assembly of other components.
  • 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.
  • NVH noise, vibration and harshness
  • first feature or “second feature” may include one or more of the features.
  • a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.
  • the first feature “above”, “above” and “above” the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • reference is made to the terms “one embodiment”, “some embodiments”, “illustrative embodiments”, “example”, “specific example”, The description of “some examples” or the like means 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 the present application.
  • the schematic representation of the above terms does not necessarily refer to the same embodiment or example.
  • the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne une pièce coulée (200), un faux cadre (100) et un véhicule. La pièce coulée (200) comprend : une poutre de base (1), une cavité structurale étant formée à l'intérieur de la poutre de base (1) ; et une partie pièce coulée sous pression, qui est disposée sur au moins une partie de la périphérie de la poutre de base (1) et est coulée d'un seul tenant avec la poutre de base (1).
PCT/CN2024/115586 2023-09-25 2024-08-29 Pièce coulée, faux cadre et véhicule Pending WO2025066771A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202311250691.6A CN117184234A (zh) 2023-09-25 2023-09-25 用于副车架的铸造件、副车架及车辆
CN202311250691.6 2023-09-25

Publications (1)

Publication Number Publication Date
WO2025066771A1 true WO2025066771A1 (fr) 2025-04-03

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PCT/CN2024/115586 Pending WO2025066771A1 (fr) 2023-09-25 2024-08-29 Pièce coulée, faux cadre et véhicule

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CN (1) CN117184234A (fr)
WO (1) WO2025066771A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117184234A (zh) * 2023-09-25 2023-12-08 浙江极氪智能科技有限公司 用于副车架的铸造件、副车架及车辆

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CN117184234A (zh) * 2023-09-25 2023-12-08 浙江极氪智能科技有限公司 用于副车架的铸造件、副车架及车辆
CN118270112A (zh) * 2024-03-18 2024-07-02 中国第一汽车股份有限公司 乘用车异质型材镶嵌中空结构压铸副车架及其制造工艺

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JP2012143788A (ja) * 2011-01-12 2012-08-02 Honda Motor Co Ltd 鋳造品
WO2013005846A1 (fr) * 2011-07-07 2013-01-10 株式会社ヨロズ Structure de composant pour véhicule
CN206374813U (zh) * 2016-12-26 2017-08-04 比亚迪股份有限公司 前副车架及汽车
JP2020082183A (ja) * 2018-11-30 2020-06-04 リョービ株式会社 中空ダイカスト品、ダイカスト法
CN210941968U (zh) * 2019-10-29 2020-07-07 中国第一汽车股份有限公司 一种副车架
CN115009362A (zh) * 2022-05-30 2022-09-06 中国第一汽车股份有限公司 一种乘用车铝合金镶铸副车架及其制造工艺
CN117184234A (zh) * 2023-09-25 2023-12-08 浙江极氪智能科技有限公司 用于副车架的铸造件、副车架及车辆
CN118270112A (zh) * 2024-03-18 2024-07-02 中国第一汽车股份有限公司 乘用车异质型材镶嵌中空结构压铸副车架及其制造工艺

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