Subframe assembly and vehicle

Abstract

The present invention relates to the field of automobile technology, and specifically to a subframe assembly and a vehicle, the subframe assembly comprising a first crossbeam, a first connecting seat and a fourth connecting seat; the two ends of the first crossbeam are fixedly connected to the first connecting seat and the fourth connecting seat respectively; the first connecting seat comprises a first shell, a first connecting part and a second connecting part, and the first connecting part and the second connecting part are arranged on the same side of the first shell; the fourth connecting seat comprises a second shell, a fourth connecting part and a fifth connecting part, and the fourth connecting part and the fifth connecting part are arranged on the same side of the second shell; the first connecting part and the fourth connecting part are respectively used for detachable connection with an active stabilizer bar assembly, and the second connecting part and the fifth connecting part are respectively used for detachable connection with a steering gear; the present invention enables the steering gear and the active stabilizer bar assembly to be arranged on the front side of the subframe assembly, saving layout space to a certain extent; at the same time, the number of parts is reduced, and a lightweight design is achieved.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a subframe assembly and a vehicle. Background Art

[0002] The front subframe is a crucial structural component in the vehicle chassis system. Its primary function is to connect the front axle to the vehicle body, carrying and transmitting loads. Because it involves numerous components and structures, its design is crucial.

[0003] The traditional front subframe is a frame structure welded from sheet metal. The front swingarm is connected to the subframe through the front swingarm mounting holes in the front swingarm bracket. The front swingarm bracket is welded from the inner and outer swingarm bracket plates. The steering column is connected to the subframe through the steering column mounting holes in the steering column bracket. The steering column bracket is welded from the inner and outer steering column bracket plates and reinforcement plates. However, this structure is redundant, with numerous parts, all requiring welding. This leads to complex process steps and poor efficiency. During vehicle operation, the front swingarm bracket is subjected to uneven force. Furthermore, due to the large number of components in the front swingarm bracket, the connection becomes unstable over long-term use, resulting in abnormal noise and impacting vehicle performance. Furthermore, the common front subframe layout is characterized by a Z-direction arrangement with the front stabilizer bar mounted above the front subframe, and a Z-direction arrangement with the steering gear mounted above the front subframe. This layout occupies a large space, results in a heavy front subframe, and is cumbersome to disassemble, making it difficult to locate the active stabilizer bar motor.

[0004] Based on the shortcomings of the existing technology, it is urgent to study a subframe assembly and a vehicle to solve the above problems. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a subframe assembly and a vehicle. The present invention arranges the first connecting portion and the second connecting portion on the same side, and the fourth connecting portion and the fifth connecting portion on the same side, so that the steering gear and the active stabilizer bar assembly are both arranged on the front side of the subframe assembly, which is also convenient for disassembly. The active stabilizer bar assembly and the steering gear can be disassembled separately without disassembling the subframe assembly, which saves after-sales maintenance time and costs; at the same time, the number of parts is reduced, and a lightweight design is achieved.

[0006] The present invention discloses a sub-frame assembly, comprising a first crossbeam, a first connecting seat and a fourth connecting seat;

[0007] Two ends of the first crossbeam are fixedly connected to the first connecting seat and the fourth connecting seat respectively;

[0008] The first connecting seat includes a first shell, a first connecting portion and a second connecting portion, wherein the first connecting portion and the second connecting portion are arranged on the same side of the first shell;

[0009] The fourth connecting seat includes a second shell, a fourth connecting portion and a fifth connecting portion, wherein the fourth connecting portion and the fifth connecting portion are arranged on the same side of the second shell;

[0010] The first connection portion and the fourth connection portion are respectively used for detachable connection with the active stabilizer bar assembly, and the second connection portion and the fifth connection portion are respectively used for detachable connection with the steering gear.

[0011] Furthermore, it also includes a first longitudinal beam, a second connecting seat, a second cross beam, a third connecting seat and a second longitudinal beam, and the fourth connecting seat, the first cross beam, the first connecting seat, the first longitudinal beam, the second connecting seat, the second cross beam, the third connecting seat and the second longitudinal beam are welded and connected in sequence.

[0012] Furthermore, the first connecting seat further includes a third connecting portion, a first mounting portion, a second mounting portion and a third mounting portion;

[0013] The first connecting portion, the second connecting portion, the third connecting portion, the first mounting portion, the second mounting portion, and the third mounting portion are all disposed on the first housing, and the first connecting portion and the third connecting portion are disposed on the same side of the first housing, while the second mounting portion and the first connecting portion are disposed on opposite sides of the first housing;

[0014] The third connecting portion is used to be fixedly connected to the lower collision beam of the vehicle;

[0015] The first mounting portion is fixedly connected to the first crossbeam;

[0016] The second mounting portion is fixedly connected to the second longitudinal beam;

[0017] The third mounting portion is used for detachable connection with the vehicle body.

[0018] Furthermore, the fourth connecting seat further includes a sixth connecting portion, a fourth mounting portion, a fifth mounting portion and a sixth mounting portion;

[0019] The fourth connecting portion, the fifth connecting portion, the sixth connecting portion, the fourth mounting portion, the fifth mounting portion, and the sixth mounting portion are all disposed on the second housing, the fourth connecting portion and the sixth connecting portion are disposed on the same side of the second housing, and the fifth mounting portion and the fourth connecting portion are disposed on opposite sides of the second housing;

[0020] The sixth connecting portion is used to be fixedly connected to the lower collision beam of the vehicle;

[0021] The fourth mounting portion is fixedly connected to the first crossbeam;

[0022] The fifth mounting portion is fixedly connected to the first longitudinal beam;

[0023] The sixth mounting portion is used for detachable connection with the vehicle body.

[0024] Furthermore, the first connecting portion is provided with at least one first bolt hole;

[0025] At least one third bolt hole is provided on the fourth connection portion, and both ends of the active stabilizer bar assembly are threadedly connected to the first bolt hole and the third bolt hole respectively, so that the active stabilizer bar assembly is detachably connected to the first connection portion and the fourth connection portion respectively.

[0026] Furthermore, the second connection portion is provided with at least one second bolt hole, and the steering gear is threadedly connected to two of the second bolt holes by bolts, so that the steering gear and the second connection portion are detachably connected;

[0027] At least one fourth bolt hole is provided on the fifth connection part, and both ends of the steering gear are threadedly connected to the second bolt hole and the fourth bolt hole respectively, so that the steering gear is detachably connected to the second connection part and the fifth connection part respectively.

[0028] Furthermore, the third connecting portion includes two first connecting plates arranged opposite to each other, the first connecting plates are provided with first through holes, bolts are provided in the first through holes, and one end of the lower collision beam of the vehicle is detachably connected to the third connecting portion through the bolts;

[0029] The sixth connecting portion includes two second connecting plates arranged opposite to each other, each of the second connecting plates is provided with a second through hole, a bolt is provided in the second through hole, and the other end of the lower collision beam of the vehicle is detachably connected to the sixth connecting portion through the bolt.

[0030] Furthermore, the axis of the first bolt hole and the axis of the second bolt hole are arranged in parallel;

[0031] The axes of the third bolt hole and the fourth bolt hole are arranged in parallel, and the axes of the first bolt hole and the third bolt hole are arranged in parallel.

[0032] Furthermore, the first connecting seat further includes a seventh mounting portion, and the fourth connecting seat further includes an eighth mounting portion, and the seventh mounting portion and the eighth mounting portion are respectively welded and fixed to the third crossbeam.

[0033] Another aspect of the present invention protects a vehicle comprising a steering gear, an active stabilizer bar assembly and a subframe assembly as described above;

[0034] The first connecting portion and the fourth connecting portion are detachably connected to two ends of the active stabilizer bar assembly respectively;

[0035] The second connecting portion and the fifth connecting portion are detachably connected to both ends of the steering gear, respectively, so that the subframe assembly is detachably connected to the active stabilizer bar assembly and the steering gear, respectively.

[0036] The implementation of the embodiments of the present invention has the following beneficial effects:

[0037] The present invention arranges the first connecting portion and the second connecting portion on the same side, and the fourth connecting portion and the fifth connecting portion on the same side, so that the steering gear and the active stabilizer bar assembly are both arranged on the front side of the subframe assembly, which is also convenient for disassembly. The active stabilizer bar assembly and the steering gear can be disassembled separately without disassembling the subframe assembly, which saves after-sales maintenance time and costs; at the same time, the number of parts is reduced, and a lightweight design is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] To more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0039] Figure 1 is a structural diagram of the subframe assembly described in this embodiment;

[0040] Figure 2 This is a structural diagram of the first connecting socket in this embodiment;

[0041] Figure 3 This is a cross-sectional view of the first connecting socket of this embodiment;

[0042] Figure 4 This is a structural diagram of the fourth connecting socket described in this embodiment;

[0043] Figure 5 is a cross-sectional view of the fourth connecting socket described in this embodiment;

[0044] Figure 6 This is a structural diagram of the subframe assembly described in this embodiment after being connected to the active stabilizer bar assembly and the steering gear respectively.

[0045] Among them, the reference numerals in the figure correspond to:

[0046] 101-first crossbeam; 102-second crossbeam; 103-first connecting seat; 104-second connecting seat; 105-third connecting seat; 106-fourth connecting seat; 107-first longitudinal beam; 108-second longitudinal beam; 109-third crossbeam; 110-steering gear; 111-active stabilizer bar assembly; 112-lower impact beam of the vehicle; 1031-first housing; 1032-first connecting portion; 1033-second connecting portion; 1034-third connecting portion; 1035-first mounting part; 1036-second mounting part; 1037-third mounting part; 1038-seventh mounting part; 1061-second shell; 1062-fourth connecting part; 1063-fifth connecting part; 1064-sixth connecting part; 1065-fourth mounting part; 1066-fifth mounting part; 1067-sixth mounting part; 1068-eighth mounting part; 10321-first bolt hole; 10331-second bolt hole; 10621-third bolt hole; 10631-fourth bolt hole. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0048] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] The existing technology has the following disadvantages: The conventional front subframe is a frame structure, welded together from sheet metal parts. The front swing arm is connected to the subframe through the front swing arm mounting holes in the front swing arm bracket, which is welded together from the front swing arm bracket inner plate and the front swing arm bracket outer plate. The steering column is connected to the subframe through the steering column mounting holes in the steering column bracket, which is welded together from the steering column bracket inner plate, the steering column bracket outer plate, and a reinforcement plate. However, this structure is redundant, with numerous parts, all of which require welding. This leads to complex process steps and poor efficiency. During vehicle operation, the front swing arm bracket is subjected to uneven force. Furthermore, due to the large number of components in the front swing arm bracket, the connection may become unstable over long-term use, resulting in abnormal noise and affecting vehicle performance. Furthermore, the common front subframe layout is characterized by a Z-direction arrangement of the front stabilizer bar, mounted above the front subframe, and a Z-direction arrangement of the steering gear, mounted above the front subframe. This layout occupies a large space, results in a heavy front subframe, and is cumbersome to disassemble, hindering the placement of the active stabilizer bar motor.

[0050] In response to the defects of the prior art, the present invention arranges the first connecting portion and the second connecting portion on the same side, and the fourth connecting portion and the fifth connecting portion on the same side, so that the steering gear and the active stabilizer bar assembly are both arranged on the front side of the subframe assembly, which is also convenient for disassembly. The active stabilizer bar assembly and the steering gear can be disassembled separately without disassembling the subframe assembly, which saves after-sales maintenance time and costs; at the same time, the number of parts is reduced, and a lightweight design is achieved.

[0051] Example 1

[0052] See attached Figures 1 to 6 , this embodiment provides a subframe assembly, including a first crossbeam 101, a first connecting seat 103 and a fourth connecting seat 106;

[0053] The two ends of the first crossbeam 101 are fixedly connected to the first connecting seat 103 and the fourth connecting seat 106 respectively;

[0054] The first connecting base 103 includes a first shell 1031, a first connecting portion 1032 and a second connecting portion 1033, wherein the first connecting portion 1032 and the second connecting portion 1033 are arranged on the same side of the first shell 1031;

[0055] The fourth connecting base 106 includes a second shell 1061, a fourth connecting portion 1062 and a fifth connecting portion 1063, wherein the fourth connecting portion 1062 and the fifth connecting portion 1063 are arranged on the same side of the second shell 1061;

[0056] The first connection portion 1032 and the fourth connection portion 1062 are respectively used for detachable connection to the active stabilizer bar assembly 111 , and the second connection portion 1033 and the fifth connection portion 1063 are respectively used for detachable connection to the steering gear 110 .

[0057] Preferably, it also includes a first longitudinal beam 107, a second connecting seat 104, a second cross beam 102, a third connecting seat 105 and a second longitudinal beam 108, and the fourth connecting seat 106, the first cross beam 101, the first connecting seat 103, the first longitudinal beam 107, the second connecting seat 104, the second cross beam 102, the third connecting seat 105 and the second longitudinal beam 108 are welded and connected in sequence.

[0058] It should be noted that: in this embodiment, the first connecting portion 1032 and the second connecting portion 1033 are arranged on the same side, and the fourth connecting portion 1062 and the fifth connecting portion 1063 are arranged on the same side, so that the steering gear 110 and the active stabilizer bar assembly 111 are both arranged on the front side of the sub-frame assembly, which saves layout space to a certain extent and facilitates disassembly. The active stabilizer bar assembly 111 and the steering gear 110 can be disassembled separately without disassembling the sub-frame assembly, which saves after-sales maintenance time and costs; at the same time, the number of parts is reduced, and a lightweight design is achieved.

[0059] It should also be noted that the active stabilizer bar assembly 111 is arranged above the subframe assembly, which helps protect the active stabilizer bar motor and prevent it from being bumped or flooded. The steering gear 110 is arranged below the front side of the subframe assembly. The housing of the steering gear 110 can be equivalent to the support beam of the subframe assembly, which can improve the stiffness and strength of the subframe assembly in the Y direction. Through topological optimization, an optimal lightweight design can be obtained. In this embodiment, the Y direction is defined as the length direction of the first crossbeam 101, the X direction is defined as the axial direction of the first bolt hole 10321, and the Z direction is defined as a direction perpendicular to the X and Y directions.

[0060] In this embodiment, the first crossbeam 101, the fourth connecting seat 106, the first longitudinal beam 107, the second connecting seat 104, the second crossbeam 102, the third connecting seat 105, the second longitudinal beam 108 and the first connecting seat 103 are fixedly connected in sequence and connected into one body by welding, which can reduce the number of bolts used, is conducive to lightweighting, reduces assembly time and saves costs.

[0061] Specifically, after the fourth connecting seat 106, the first crossbeam 101, the first connecting seat 103, the first longitudinal beam 107, the second connecting seat 104, the second crossbeam 102, the third connecting seat 105 and the second longitudinal beam 108 are fixed and welded together in sequence, the length direction of the first crossbeam 101 is consistent with the length direction of the second crossbeam 102, the first connecting seat 103 and the fourth connecting seat 106 are symmetrically arranged on both sides of the first crossbeam 101, and the structures of the first connecting seat 103 and the fourth connecting seat 106 are similar, and the various components on the first connecting seat 103 and the components on the fourth connecting seat 106 are also symmetrically arranged about the first crossbeam 101.

[0062] In this embodiment, the first connecting seat 103 and the fourth connecting seat 106 are both hollow structures, and the first connecting part 1032, the second connecting part 1033, the third connecting part 1034, the first mounting part 1035, the second mounting part 1036 and the third mounting part 1037 are all integrated on the first shell 1031, which reduces the number of parts and saves costs; and the fourth connecting part 1062, the fifth connecting part 1063, the sixth connecting part 1064, the fourth mounting part 1065, the fifth mounting part 1066 and the sixth mounting part 1067 are all integrated on the second shell 1061, which further reduces the number of parts, saves costs and achieves a lightweight design.

[0063] Specifically, both the first housing 1031 and the second housing 1061 are cast using a hollow low-pressure aluminum process, which maximizes the space available to enhance component rigidity and strength. A minimum wall thickness optimization method is employed to achieve the minimum wall thickness that meets performance requirements, facilitating lightweight design.

[0064] Preferably, the first connecting seat 103 further includes a third connecting portion 1034 , a first mounting portion 1035 , a second mounting portion 1036 and a third mounting portion 1037 ;

[0065] The first connecting portion 1032, the second connecting portion 1033, the third connecting portion 1034, the first mounting portion 1035, the second mounting portion 1036, and the third mounting portion 1037 are all disposed on the first housing 1031, and the first connecting portion 1032 and the third connecting portion 1034 are disposed on the same side of the first housing 1031, while the second mounting portion 1036 and the first connecting portion 1032 are disposed on opposite sides of the first housing 1031.

[0066] The third connecting portion 1034 is used to be fixedly connected to the lower collision beam 112 of the vehicle;

[0067] The first mounting portion 1035 is fixedly connected to the first crossbeam 101;

[0068] The second mounting portion 1036 is fixedly connected to the second longitudinal beam 108;

[0069] The third mounting portion 1037 is used for detachable connection with the vehicle body.

[0070] Preferably, the fourth connecting seat 106 further includes a sixth connecting portion 1064 , a fourth mounting portion 1065 , a fifth mounting portion 1066 and a sixth mounting portion 1067 ;

[0071] The fourth connecting portion 1062, the fifth connecting portion 1063, the sixth connecting portion 1064, the fourth mounting portion 1065, the fifth mounting portion 1066, and the sixth mounting portion 1067 are all disposed on the second housing 1061. The fourth connecting portion 1062 and the sixth connecting portion 1064 are disposed on the same side of the second housing 1061, and the fifth mounting portion 1066 and the fourth connecting portion 1062 are disposed on opposite sides of the second housing 1061.

[0072] The sixth connecting portion 1064 is used to be fixedly connected to the lower collision beam 112 of the vehicle;

[0073] The fourth mounting portion 1065 is fixedly connected to the first crossbeam 101;

[0074] The fifth mounting portion 1066 is fixedly connected to the first longitudinal beam 107;

[0075] The sixth mounting portion 1067 is used for detachable connection with the vehicle body.

[0076] In some possible embodiments, both ends of the vehicle's lower impact beam 112 are fixedly connected to the third connection portion 1034 and the sixth connection portion 1064 by bolts, respectively, so that the vehicle's lower impact beam 112 is easy to disassemble and assembly time is reduced.

[0077] In some possible embodiments, the sub-frame assembly is connected to the vehicle body via the third mounting portion 1037 and the sixth mounting portion 1067 , so that the sub-frame assembly is easily connected to the vehicle body, the number of parts is reduced, and costs are saved.

[0078] Specifically, the first mounting portion 1035 and the fourth mounting portion 1065 are both plate-like structures. As long as the first beam 101 can be firmly welded, the shapes of the first mounting portion 1035 and the fourth mounting portion 1065 are set according to actual conditions, so they are not restricted here.

[0079] Specifically, the second mounting portion 1036 and the fifth mounting portion 1066 both have a mounting surface.

[0080] Preferably, at least one first bolt hole 10321 is provided on the first connecting portion 1032;

[0081] At least one third bolt hole 10621 is provided on the fourth connecting portion 1062, and the two ends of the active stabilizer bar assembly 111 are respectively threadedly connected to the first bolt hole 10321 and the third bolt hole 10621, so that the active stabilizer bar assembly 111 is detachably connected to the first connecting portion 1032 and the fourth connecting portion 1062.

[0082] Preferably, the second connection portion 1033 is provided with at least one second bolt hole 10331, and the steering gear 110 is threadedly connected to two of the second bolt holes 10331 by bolts, so that the steering gear 110 and the second connection portion 1033 are detachably connected;

[0083] At least one fourth bolt hole 10631 is arranged at intervals on the fifth connecting portion 1063, and the two ends of the steering gear 110 are threadedly connected to the second bolt hole 10331 and the fourth bolt hole 10631 respectively, so that the steering gear 110 is detachably connected to the second connecting portion 1033 and the fifth connecting portion 1063 respectively.

[0084] In this embodiment, the number of the first bolt holes 10321 is two, and the two first bolt holes 10321 are arranged at intervals. The two first bolt holes 10321 are arranged along the Z direction of the sub-frame assembly, that is, one first bolt hole 10321 is arranged above the other first bolt hole 10321.

[0085] In this embodiment, the number of the second bolt holes 10331 is two, and the two second bolt holes 10331 are arranged at intervals. The two second bolt holes 10331 are arranged along the Z direction of the sub-frame assembly, that is, one second bolt hole 10331 is arranged above the other second bolt hole 10331.

[0086] In this embodiment, the structures of the first connecting portion 1032 and the second connecting portion 1033 are not limited, nor are the structures of the fourth connecting portion 1062 and the fifth connecting portion 1063. It is sufficient as long as the steering gear 110 and the active stabilizer bar assembly 111 can be easily disassembled from and assembled to the subframe assembly and the subframe assembly is lightweight. The specific structures of the above components are set according to actual conditions.

[0087] Specifically, one first bolt hole 10321, another first bolt hole 10321, one second bolt hole 10331 and another second bolt hole 10331 are arranged in sequence along the Z direction of the sub-frame assembly, so that the steering gear 110 and the active stabilizer bar assembly 111 are both arranged on the front side of the sub-frame assembly, which saves layout space to a certain extent; at the same time, it reduces the number of parts, achieves lightweight design and saves costs.

[0088] In some possible embodiments, there are two third bolt holes 10621 , and the two third bolt holes 10621 are arranged at intervals, and the two third bolt holes 10621 are arranged along the Z direction of the sub-frame assembly.

[0089] Specifically, the number of the fourth bolt holes 10631 is two, the two fourth bolt holes 10631 are arranged at intervals, and one fourth bolt hole 10631 is arranged above the other fourth bolt hole 10631.

[0090] Furthermore, one of the third bolt holes 10621, another of the third bolt holes 10621, one of the fourth bolt holes 10631, and another of the fourth bolt holes 10631 are arranged along the Z direction of the sub-frame assembly, so that the steering gear 110 and the active stabilizer bar assembly 111 are both arranged on the front side of the sub-frame assembly, which saves layout space to a certain extent; at the same time, it reduces the number of parts, achieves a lightweight design, and saves costs.

[0091] Preferably, the third connecting portion 1034 includes two first connecting plates arranged opposite to each other, each of the first connecting plates being provided with a first through hole, a bolt being provided in the first through hole, and one end of the lower collision beam 112 of the vehicle being detachably connected to the third connecting portion 1034 via the bolt;

[0092] The sixth connecting portion 1064 includes two second connecting plates arranged opposite to each other, each of which is provided with a second through hole, in which a bolt is provided, and the other end of the lower collision beam 112 of the vehicle is detachably connected to the sixth connecting portion 1064 through the bolt.

[0093] Specifically, the two first connecting plates are arranged along the Z direction of the sub-frame assembly, and the two second connecting plates are arranged along the Z direction of the sub-frame assembly; the plane where one of the first connecting plates is located coincides with the plane where one of the second connecting plates is located, and the plane where another of the first connecting plates is located coincides with the plane where another of the second connecting plates is located; and the first connecting plates and the second connecting portions both form an angle of 4.5° with the horizontal plane.

[0094] Preferably, the axis of the first bolt hole 10321 and the axis of the second bolt hole 10331 are arranged in parallel;

[0095] The axes of the third bolt hole 10621 and the fourth bolt hole 10631 are arranged in parallel, and the axes of the first bolt hole 10321 and the third bolt hole 10621 are arranged in parallel.

[0096] Preferably, the first connecting seat 103 further includes a seventh mounting portion 1038 , and the fourth connecting seat 106 further includes an eighth mounting portion 1068 . The seventh mounting portion 1038 and the eighth mounting portion 1068 are respectively welded and fixed to the third crossbeam 109 .

[0097] Specifically, the structures of the seventh mounting portion 1038 and the eighth mounting portion 1068 are the same, and the two are symmetrically arranged. The structures of the seventh mounting portion 1038 and the eighth mounting portion 1068 are not set, as long as the third beam 109 can be firmly welded to the seventh mounting portion 1038 and the eighth mounting portion 1068 respectively, and after welding and fixing, the length direction of the third beam 109 can be parallel to the length direction of the first beam 101.

[0098] In this embodiment, the first shell 1031 and the second shell 1061 are symmetrically arranged at the two ends of the first beam 101; the first connecting part 1032 and the fourth connecting part 1062 are symmetrically arranged at the two ends of the first beam 1; the second connecting part 1033 and the fifth connecting part 1063 are symmetrically arranged at the two ends of the first beam 1; the third connecting part 1034 and the sixth connecting part 1064 are symmetrically arranged at the two ends of the first beam 1; the first mounting part 1035 and the fourth mounting part 1065 are symmetrically arranged at the two ends of the first beam 1; the second mounting part 1036 and the fifth mounting part 1066 are symmetrically arranged at the two ends of the first beam 1; the third mounting part 1037 and the sixth mounting part 1067 are symmetrically arranged at the two ends of the first beam 1.

[0099] Preferably, a first reinforcing rib is provided on the first connecting portion 1032, and the first reinforcing rib is used to strengthen the strength of the first connecting portion 1032;

[0100] The fourth connection portion 1062 is provided with a second reinforcing rib, and the second reinforcing rib is used to strengthen the strength of the fourth connection portion 1062 .

[0101] Specifically, providing the first reinforcing rib and the second reinforcing rib can further improve the rigidity and strength of the subframe assembly in the Z direction.

[0102] Another aspect of the present invention protects a vehicle comprising a steering gear 110, an active stabilizer bar assembly 111 and a subframe assembly as described above;

[0103] The first connecting portion 1032 and the fourth connecting portion 1062 are detachably connected to two ends of the active stabilizer bar assembly 111 respectively;

[0104] The second connection portion 1033 and the fifth connection portion 1063 are detachably connected to both ends of the steering gear 110 , respectively, so that the subframe assembly is detachably connected to the active stabilizer bar assembly 111 and the steering gear 110 , respectively.

[0105] In a vehicle having the subframe assembly, the steering gear 110 and the active stabilizer bar assembly 111 are both arranged on the front side of the subframe assembly, which saves layout space to a certain extent and facilitates disassembly. The active stabilizer bar assembly 111 and the steering gear 110 can be disassembled separately without disassembling the subframe assembly, which saves after-sales maintenance time and costs; at the same time, the number of parts is reduced, achieving a lightweight design.

[0106] Although the present invention has been described through preferred embodiments, the present invention is not limited to the embodiments described herein but includes various changes and modifications that may be made without departing from the scope of the present invention.

[0107] In this document, directional terms such as front, back, top, and bottom are defined based on the positions of components in the accompanying drawings and relative to each other, and are intended only for clarity and convenience in describing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0108] In the absence of conflict, the above embodiments and features in the embodiments can be combined with each other.

[0109] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A subframe assembly, characterized in that: It comprises a first crossbeam (101), a first connecting seat (103) and a fourth connecting seat (106); Two ends of the first crossbeam (101) are fixedly connected to the first connecting seat (103) and the fourth connecting seat (106), respectively; The first connecting seat (103) comprises a first shell (1031), a first connecting portion (1032), a second connecting portion (1033), a third connecting portion (1034), a first mounting portion (1035), a second mounting portion (1036) and a third mounting portion (1037); the first connecting portion (1032) and the second connecting portion (1033) are arranged on the same side of the first shell (1031); the first connecting portion (1032), the second connecting portion (1033), the third connecting portion (1034), the first mounting portion (1035), the second mounting portion (1036) and the The third mounting portion (1037) is arranged on the first shell (1031), and the first connecting portion (1032) and the third connecting portion (1034) are arranged on the same side of the first shell (1031), and the second mounting portion (1036) and the first connecting portion (1032) are arranged on opposite sides of the first shell (1031); the third connecting portion (1034) is used to be fixedly connected to the lower collision beam (112) of the vehicle; the first mounting portion (1035) is fixedly connected to the first cross beam (101); the second mounting portion (1036) is fixedly connected to the second longitudinal beam (108); the third mounting portion (1037) is used to be detachably connected to the vehicle body; The fourth connecting seat (106) comprises a second shell (1061), a fourth connecting portion (1062) and a fifth connecting portion (1063), wherein the fourth connecting portion (1062) and the fifth connecting portion (1063) are arranged on the same side of the second shell (1061); The first connecting portion (1032) and the fourth connecting portion (1062) are respectively used for detachable connection with the active stabilizer bar assembly (111), and the second connecting portion (1033) and the fifth connecting portion (1063) are respectively used for detachable connection with the steering gear (110).

2. The subframe assembly according to claim 1, characterized in that: The invention also includes a first longitudinal beam (107), a second connecting seat (104), a second cross beam (102), a third connecting seat (105) and a second longitudinal beam (108); the fourth connecting seat (106), the first cross beam (101), the first connecting seat (103), the first longitudinal beam (107), the second connecting seat (104), the second cross beam (102), the third connecting seat (105) and the second longitudinal beam (108) are welded and connected in sequence.

3. The subframe assembly according to claim 2, characterized in that: The fourth connecting seat (106) further includes a sixth connecting portion (1064), a fourth mounting portion (1065), a fifth mounting portion (1066) and a sixth mounting portion (1067); The fourth connecting portion (1062), the fifth connecting portion (1063), the sixth connecting portion (1064), the fourth mounting portion (1065), the fifth mounting portion (1066) and the sixth mounting portion (1067) are all arranged on the second shell (1061); the fourth connecting portion (1062) and the sixth connecting portion (1064) are arranged on the same side of the second shell (1061); and the fifth mounting portion (1066) and the fourth connecting portion (1062) are arranged on opposite sides of the second shell (1061); The sixth connecting portion (1064) is used for fixedly connecting to a lower collision beam (112) of the vehicle; The fourth mounting portion (1065) is fixedly connected to the first crossbeam (101); The fifth mounting portion (1066) is fixedly connected to the first longitudinal beam (107); The sixth mounting portion (1067) is used for detachable connection with the vehicle body.

4. The subframe assembly according to claim 3, characterized in that: At least one first bolt hole (10321) is provided on the first connecting portion (1032); At least one third bolt hole (10621) is provided on the fourth connecting portion (1062), and both ends of the active stabilizer bar assembly (111) are respectively threadedly connected to the first bolt hole (10321) and the third bolt hole (10621), so that the active stabilizer bar assembly (111) is respectively detachably connected to the first connecting portion (1032) and the fourth connecting portion (1062).

5. The subframe assembly according to claim 4, characterized in that: The second connection portion (1033) is provided with at least one second bolt hole (10331), and the steering gear (110) is threadedly connected to two of the second bolt holes (10331) by bolts, so that the steering gear (110) and the second connection portion (1033) are detachably connected; At least one fourth bolt hole (10631) is provided on the fifth connecting portion (1063), and both ends of the steering gear (110) are respectively threadedly connected to the second bolt hole (10331) and the fourth bolt hole (10631), so that the steering gear (110) is detachably connected to the second connecting portion (1033) and the fifth connecting portion (1063).

6. The subframe assembly according to claim 5, characterized in that: The third connecting portion (1034) comprises two first connecting plates arranged opposite to each other, the first connecting plates being provided with first through holes, the first through holes being provided with bolts, and one end of the lower collision beam (112) of the vehicle being detachably connected to the third connecting portion (1034) via the bolts; The sixth connecting portion (1064) includes two second connecting plates arranged opposite to each other, the second connecting plates are provided with second through holes, bolts are provided in the second through holes, and the other end of the lower collision beam (112) of the vehicle is detachably connected to the sixth connecting portion (1064) via the bolts.

7. The subframe assembly according to claim 6, characterized in that: The axis of the first bolt hole (10321) and the axis of the second bolt hole (10331) are arranged in parallel; The axes of the third bolt hole (10621) and the fourth bolt hole (10631) are arranged in parallel, and the axes of the first bolt hole (10321) and the third bolt hole (10621) are arranged in parallel.

8. The subframe assembly according to claim 1, characterized in that: The first connecting seat (103) further includes a seventh mounting portion (1038), and the fourth connecting seat (106) further includes an eighth mounting portion (1068). The seventh mounting portion (1038) and the eighth mounting portion (1068) are respectively welded and fixed to the third crossbeam (109).

9. A vehicle, characterized in that: It comprises a steering gear (110), an active stabilizer bar assembly (111) and a subframe assembly according to any one of claims 1 to 8; The first connecting portion (1032) and the fourth connecting portion (1062) are detachably connected to two ends of the active stabilizer bar assembly (111), respectively; The second connecting portion (1033) and the fifth connecting portion (1063) are respectively detachably connected to the two ends of the steering gear (110), so that the sub-frame assembly is respectively detachably connected to the active stabilizer bar assembly (111) and the steering gear (110).

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