Auxiliary frame assembly and vehicle

Abstract

The utility model relates to the technical field of vehicles, and discloses an auxiliary frame assembly and a vehicle. The auxiliary frame assembly comprises a first auxiliary frame body, and a first suspension assembly, a beam mounting part and a suspension mounting part are arranged on the first auxiliary frame body. A first transfer beam is mounted on a beam mounting portion of the auxiliary frame assembly, a second suspension assembly is arranged on the first transfer beam, and the first suspension assembly and the second suspension assembly are used for mounting a motor in a matched mode. Or, the suspension mounting part is provided with a third suspension assembly, and the first suspension assembly and the third suspension assembly are used for mounting the motor in a matched mode. By means of the mode, the auxiliary frame assembly can be compatible with arrangement of different power assemblies, the requirement for the generalization rate of a platform is met, the development cost of parts can be saved, and the assembling technology can be simplified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a subframe assembly and a vehicle. BACKGROUND

[0002] The subframe of a vehicle is an important component of the chassis of the vehicle. It is the main structure connecting the front and rear suspension systems of the vehicle, bearing the weight of the vehicle body and suspension system, and supporting and stabilizing the vehicle by transmitting power and torque. The powertrain of the vehicle is usually installed on the subframe.

[0003] With the increasing maturity of vehicle chassis technology, the generalization rate of the chassis platform is increasingly required. In the current vehicle development process, changes in the powertrain will bring changes in the subframe structure, and even changes in the suspension hard points, increasing the development cost of parts, and too many changes are not conducive to the assembly process of the vehicle. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a subframe assembly and a vehicle, which can be compatible with the arrangement of different powertrains, meet the generalization rate requirement of the platform, and save the development cost of parts and simplify the assembly process.

[0005] The present application provides a subframe assembly. The subframe assembly comprises a first subframe body, a first suspension assembly, a beam mounting portion and a suspension mounting portion are arranged on the first subframe body. The beam mounting portion is mounted with a first conversion beam, and the first conversion beam is provided with a second suspension assembly. The first suspension assembly and the second suspension assembly are used to cooperate to install a motor. Alternatively, the suspension mounting portion is mounted with a third suspension assembly, and the first suspension assembly and the third suspension assembly are used to cooperate to install a motor.

[0006] In an embodiment of the present application, the subframe assembly has a first direction and a second direction perpendicular to each other; the first subframe body comprises: a first frame beam provided with a first suspension assembly; a second frame beam connected to one end of the first frame beam in the first direction, and the second frame beam is located on one side of the first frame beam in the second direction; and a third frame beam connected to the other end of the first frame beam in the first direction, and the second frame beam and the third frame beam are located on the same side of the first frame beam in the second direction; wherein the end of the second frame beam away from the first frame beam and the end of the third frame beam away from the first frame beam form a beam mounting portion in the first direction; and the second frame beam and / or the third frame beam are provided with a suspension mounting portion.

[0007] In an embodiment of the present application, the number of the first suspension assemblies is at least two, and each first suspension assembly is spaced apart along the first direction; when the beam mounting portion is mounted with the first conversion beam, the second suspension assembly is located between two adjacent first suspension assemblies along the first direction, and each first suspension assembly and the second suspension assembly are used to cooperatively mount the same motor.

[0008] In an embodiment of the present application, the number of the first suspension assemblies is at least two, and each first suspension assembly is spaced apart along the first direction; the second frame beam and the third frame beam are respectively provided with a suspension mounting portion; wherein the suspension mounting portion on the second frame beam is mounted with the third suspension assembly, and the third suspension assembly on the second frame beam and the adjacent first suspension assembly are used to cooperatively mount the same motor, and the suspension mounting portion on the third frame beam is mounted with the third suspension assembly, and the third suspension assembly on the third frame beam and the adjacent first suspension assembly are used to cooperatively mount the same motor.

[0009] In an embodiment of the present application, the sub-frame assembly further comprises a second conversion beam, and the first conversion beam and the second conversion beam are alternatively mounted on the beam mounting portion; wherein the second conversion beam is connected with the end of the second frame beam away from the first frame beam and the end of the third frame beam away from the first frame beam respectively.

[0010] In an embodiment of the present application, the second frame beam comprises: a first connecting beam portion connected to one end of the first frame beam along the first direction, and the first connecting beam portion is located on one side of the first frame beam along the second direction; and a first extending beam portion connected to the end of the first connecting beam portion away from the first frame beam along the second direction, and the first extending beam portion is located on the side of the first connecting beam portion close to the third frame beam along the first direction, and the first extending beam portion forms the beam mounting portion with the third frame beam along the first direction.

[0011] In an embodiment of the present application, the suspension mounting portion is arranged on the first connecting beam portion.

[0012] In an embodiment of the present application, the third frame beam comprises: a second connecting beam portion connected to the other end of the first frame beam along the first direction, and the second connecting beam portion and the second frame beam are located on the same side of the first frame beam along the second direction; and a second extending beam portion connected to the end of the second connecting beam portion away from the first frame beam along the second direction, and the second extending beam portion is located on the side of the second connecting beam portion close to the second frame beam along the first direction, and the second extending beam portion forms the beam mounting portion with the second frame beam along the first direction.

[0013] In an embodiment of the present application, the suspension mounting portion is arranged on the second connecting beam portion.

[0014] In an embodiment of the present application, the sub-frame assembly further comprises a reinforcing beam which is detachably mounted on the first sub-frame body.

[0015] In an embodiment of the present application, the auxiliary frame assembly further comprises a reinforcing beam connected with the second frame beam and the third frame beam respectively.

[0016] In an embodiment of the present application, the auxiliary frame assembly further comprises a second auxiliary frame body connected with the first auxiliary frame body, and a fourth suspension assembly arranged on the second auxiliary frame body, the fourth suspension assembly being used for mounting an engine.

[0017] In an embodiment of the present application, the auxiliary frame assembly is a front auxiliary frame assembly or a rear auxiliary frame assembly.

[0018] Correspondingly, the present application further provides a vehicle comprising the auxiliary frame assembly as described in the above embodiments.

[0019] The present application has the following beneficial effects: Different from the prior art, the present application provides an auxiliary frame assembly and a vehicle. The beam mounting portion on the first auxiliary frame body of the auxiliary frame assembly is mounted with a first conversion beam, and the first conversion beam is arranged with a second suspension assembly, and the first suspension assembly and the second suspension assembly are used for mounting a motor in cooperation. Alternatively, the suspension mounting portion on the first auxiliary frame body is mounted with a third suspension assembly, and the first suspension assembly and the third suspension assembly are used for mounting the motor in cooperation.

[0020] In other words, the auxiliary frame assembly of the present application can be compatible with different arrangement modes of the motor (power assembly), and can realize different arrangement modes of the power assembly without changing the first auxiliary frame body, thereby meeting the platform generalization rate requirement. Moreover, the present application does not change the first auxiliary frame body, and can avoid the problems of increasing the development cost of parts and the complexity of assembly process caused by the change of the auxiliary frame body in the prior art, thereby saving the development cost of parts and simplifying the assembly process. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0022] Figure 1 is a structural schematic view of the rear auxiliary frame assembly of the present application in a first state;

[0023] Figure 2 is a structural schematic view of the rear auxiliary frame assembly of the present application in a second state;

[0024] Figure 3 is a structural schematic view of an embodiment of the auxiliary frame body of the rear auxiliary frame assembly of the present application;

[0025] Figure 4 is Figure 3 is a sectional view of the rear subframe assembly along the direction of M-M shown in FIG. 5;

[0026] Figure 5 is Figure 1 is a sectional view of the rear subframe assembly along the direction of D-D shown in FIG. 6;

[0027] Figure 6 is Figure 1 is a sectional view of the rear subframe assembly along the direction of E-E shown in FIG. 7;

[0028] Figure 7 is Figure 2 is a sectional view of the rear subframe assembly along the direction of F-F shown in FIG. 8;

[0029] Figure 8 is a structural schematic view of the front subframe assembly in a first state according to the present application;

[0030] Figure 9 is a structural schematic view of the front subframe assembly in a second state according to the present application;

[0031] Figure 10 is a structural schematic view of an embodiment of the subframe body of the front subframe assembly according to the present application;

[0032] Figure 11 is a sectional view of the front subframe assembly along the direction of G-G shown in FIG. 9; Figure 10

[0033] is a sectional view of the front subframe assembly along the direction of A-A shown in FIG. 10; Figure 12 Figure 8 is a sectional view of the front subframe assembly along the direction of B-B shown in FIG. 11;

[0034] Figure 13 Figure 9 is a sectional view of the front subframe assembly along the direction of C-C shown in FIG. 12;

[0035] Figure 14 is a sectional view of the front subframe assembly along the direction of C-C shown in FIG. 12; Figure 9

[0036] BRIEF DESCRIPTION OF THE DRAWINGS

[0037] ​​​10a front subframe assembly; 10b rear subframe assembly; 11 first subframe body; 111 first frame beam; 112 second frame beam; 1121 first connecting beam part; 1122 first extending beam part; 113 third frame beam; 1131 second connecting beam part; 1132 second extending beam part; 114 beam mounting part; 115 suspension mounting part; 121 first conversion beam; 122 second conversion beam; 13 reinforcing beam; 14 second subframe body; 21 first suspension assembly; 211 first mounting bracket; 212 first suspension support; 213 first suspension bushing; 22 second suspension assembly; 221 second suspension support; 222 second suspension bushing; 223 second mounting bushing; 23 third suspension assembly; 231 third suspension support; 232 first mounting bushing; 24 fourth suspension assembly. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated and limited, the orientation words such as "upper", "lower", "left", "right" generally refer to the upper, lower, left and right of the device in the actual use or working state, and specifically refer to the direction of the drawing surface in the drawings.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] The present application provides a subframe assembly and a vehicle, which are described in detail below. It should be noted that the description order of the following embodiments is not limited as the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0041] To solve the technical problems of low platform generalization rate, high cost of component development, and complex assembly process of the auxiliary frame in the prior art, an embodiment of the present application provides an auxiliary frame assembly. The auxiliary frame assembly comprises a first auxiliary frame body, and a first suspension assembly, a beam mounting portion, and a suspension mounting portion are arranged on the first auxiliary frame body. The beam mounting portion is provided with a first conversion beam, and the first conversion beam is provided with a second suspension assembly. The first suspension assembly and the second suspension assembly are used for cooperatively mounting a motor. Alternatively, the suspension mounting portion is provided with a third suspension assembly, and the first suspension assembly and the third suspension assembly are used for cooperatively mounting the motor. Details are described below.

[0042] In an embodiment, the vehicle comprises an auxiliary frame assembly. The auxiliary frame assembly is a front auxiliary frame assembly or a rear auxiliary frame assembly. The front auxiliary frame assembly is located at the front of the vehicle, and the front auxiliary frame assembly connects a front suspension system and a vehicle body structure. The rear auxiliary frame assembly is located at the rear of the vehicle, and the rear auxiliary frame assembly connects a rear suspension system and the vehicle body structure. The front auxiliary frame assembly and the rear auxiliary frame assembly respectively support and stabilize the front and rear of the vehicle.

[0043] Details of the rear auxiliary frame assembly of the embodiment of the present application are described below.

[0044] Please refer to Figures 1 to 7 , Figure 1 is a structural schematic diagram of the rear auxiliary frame assembly of the present application in a first state, Figure 2 is a structural schematic diagram of the rear auxiliary frame assembly of the present application in a second state, Figure 3 is a structural schematic diagram of an embodiment of the auxiliary frame body of the rear auxiliary frame assembly of the present application, Figure 4 is Figure 3 is a cross-sectional structural schematic diagram of the auxiliary frame body of the rear auxiliary frame assembly shown in Figure 5 is Figure 1 is a cross-sectional structural schematic diagram of the rear auxiliary frame assembly in the D-D direction, Figure 6 is Figure 1 is a cross-sectional structural schematic diagram of the rear auxiliary frame assembly in the E-E direction, Figure 7 is Figure 2 is a cross-sectional structural schematic diagram of the rear auxiliary frame assembly in the F-F direction.

[0045] In an embodiment, the rear auxiliary frame assembly 10b comprises a first auxiliary frame body 11, and a first suspension assembly 21, a beam mounting portion 114, and a suspension mounting portion 115 are arranged on the first auxiliary frame body 11. The beam mounting portion 114 is provided with a first conversion beam 121, and the first conversion beam 121 is provided with a second suspension assembly 22. The first suspension assembly 21 and the second suspension assembly 22 are used for cooperatively mounting a motor. Alternatively, the suspension mounting portion 115 is provided with a third suspension assembly 23, and the first suspension assembly 21 and the third suspension assembly 23 are used for cooperatively mounting the motor.

[0046] In other words, the rear subframe assembly 10b has a first state and a second state. When the rear subframe assembly 10b is in the first state, the beam mounting portion 114 is mounted with the first conversion beam 121, and the first suspension assembly 21 and the second suspension assembly 22 are configured to cooperate to mount the motor. When the rear subframe assembly 10b is in the second state, the suspension mounting portion 115 is mounted with the third suspension assembly 23, and the first suspension assembly 21 and the third suspension assembly 23 are configured to cooperate to mount the motor. The rear subframe assembly 10b is ultimately in either the first state or the second state, i.e., the first state and the second state do not exist in the rear subframe assembly 10b at the same time.

[0047] In the above manner, the rear subframe assembly 10b of the present embodiment can be compatible with different arrangements of the motor (power assembly), and can realize different arrangements of the power assembly without replacing the first subframe body 11, thereby meeting the platform generalization rate requirement. Moreover, the present embodiment does not replace the first subframe body 11, and can avoid the problems of increased development cost of parts and complex assembly process caused by the change of the subframe body in the prior art, thereby saving the development cost of parts and simplifying the assembly process.

[0048] It should be noted that the first subframe body 11 of the present embodiment can be an integrated cast aluminum structure, etc. The first subframe body 11 effectively reduces the assembly process of parts, and uses the same subframe body to realize the matching of different power assemblies with minimal structural changes, thereby maximizing the platform generalization rate and reducing the development cost of vehicle models. Please refer to Figure 3 and Figure 4 In an embodiment, the rear subframe assembly 10b has a first direction X and a second direction Y perpendicular to each other. The first subframe body 11 includes a first frame beam 111, a second frame beam 112, and a third frame beam 113. The first frame beam 111 is provided with the first suspension assembly 21. The second frame beam 112 is connected to one end of the first frame beam 111 in the first direction X, and the second frame beam 112 is located on one side of the first frame beam 111 in the second direction Y. The third frame beam 113 is connected to the other end of the first frame beam 111 in the first direction X, and the second frame beam 112 and the third frame beam 113 are located on the same side of the first frame beam 111 in the second direction Y. The end of the second frame beam 112 away from the first frame beam 111 and the end of the third frame beam 113 away from the first frame beam 111 form a beam mounting portion 114 in the first direction X, which can be a gap between the end of the second frame beam 112 away from the first frame beam 111 and the end of the third frame beam 113 away from the first frame beam 111 in the first direction X. The second frame beam 112 and / or the third frame beam 113 are provided with a suspension mounting portion 115.

[0049] It should be noted that the second frame beam 112 and the third frame beam 113 are both provided with the suspension mounting portion 115 in the optional embodiment of the present application. The form of the suspension mounting portion 115 can be reasonably designed according to the fixing mode of the third suspension assembly 23. For example, the suspension mounting portion 115 on the second frame beam 112 is taken as an example. The third suspension assembly 23 is fastened to the second frame beam 112 by a bolt or the like fastener, and the suspension mounting portion 115 corresponds to a bolt hole. It can be understood that, if the third suspension assembly 23 is installed on the second frame beam 112 by welding, the suspension mounting portion 115 can correspond to a region on the second frame beam 112 for welding the third suspension assembly 23, which is not limited herein. The suspension mounting portion 115 on the third frame beam 113 is the same. Figure 4 For example, the suspension mounting portion 115 on the second frame beam 112 is taken as an example. The third suspension assembly 23 is fastened to the second frame beam 112 by a bolt or the like fastener, and the suspension mounting portion 115 corresponds to a bolt hole. It can be understood that, if the third suspension assembly 23 is installed on the second frame beam 112 by welding, the suspension mounting portion 115 can correspond to a region on the second frame beam 112 for welding the third suspension assembly 23, which is not limited herein. The suspension mounting portion 115 on the third frame beam 113 is the same.

[0050] In an embodiment, the first state of the rear subframe assembly 10b corresponds to a single-motor arrangement scheme. Specifically, the number of the first suspension assemblies 21 is at least two, and each first suspension assembly 21 is spaced apart along the first direction X. When the beam mounting portion 114 is installed with the first conversion beam 121, the second suspension assembly 22 is located between the adjacent two first suspension assemblies 21 in the first direction X, and each first suspension assembly 21 and the second suspension assembly 22 are used to cooperatively install the same motor.

[0051] For example, the number of the first suspension assemblies 21 is two, and the two first suspension assemblies 21 are respectively arranged at the two ends of the first frame beam 111 in the first direction X. The first conversion beam 121 is arranged between the end of the second frame beam 112 away from the first frame beam 111 and the end of the third frame beam 113 away from the first frame beam 111. The second suspension assembly 22 is arranged on the first conversion beam 121 and located between the two first suspension assemblies 21 in the first direction X. Each first suspension assembly 21 and the second suspension assembly 22 cooperatively install the same motor, so that the motor is arranged in a three-point centroid arrangement scheme.

[0052] The first suspension assembly 21 includes a first suspension bushing 213. The first suspension bushing 213 is arranged on the first frame beam 111 and used to connect with the motor. The second suspension assembly 22 includes a second suspension support 221 and a second mounting bushing 223. The second suspension support 221 can be fastened to the first conversion beam 121 by a bolt or the like fastener 31, and the second suspension support 221 is used to connect with the motor. The second mounting bushing 223 is sleeved on the outer periphery of the fastener 31, and the second mounting bushing 223 is located between the fastener 31 and the second suspension support 221.

[0053] In an embodiment, the second state of the rear subframe assembly 10b corresponds to a dual-motor arrangement. Specifically, the number of the first suspension assemblies 21 is at least two, and each of the first suspension assemblies 21 is spaced apart along the first direction X. The second frame beam 112 and the third frame beam 113 are respectively provided with suspension mounting portions 115. The suspension mounting portions 115 on the second frame beam 112 are mounted with the third suspension assemblies 23, and the third suspension assemblies 23 on the second frame beam 112 are used to cooperatively mount a same motor with the proximal first suspension assemblies 21. The suspension mounting portions 115 on the third frame beam 113 are mounted with the third suspension assemblies 23, and the third suspension assemblies 23 on the third frame beam 113 are used to cooperatively mount a same motor with the proximal first suspension assemblies 21. The third suspension assemblies 23 on the second frame beam 112 and the third suspension assemblies 23 on the third frame beam 113 are respectively used to mount different motors, thereby realizing a four-point suspension arrangement of dual motors.

[0054] For example, the number of the first suspension assemblies 21 is two, and the two first suspension assemblies 21 are respectively arranged at the two ends of the first frame beam 111 in the first direction X. The first suspension assembly 21 proximal to the second frame beam 112 and the third suspension assembly 23 on the second frame beam 112 are used to cooperatively mount a same motor, the first suspension assembly 21 proximal to the third frame beam 113 and the third suspension assembly 23 on the third frame beam 113 are used to cooperatively mount a same motor, and the third suspension assembly 23 on the second frame beam 112 and the third suspension assembly 23 on the third frame beam 113 are respectively used to mount different motors. The third suspension assembly 23 comprises a third suspension bracket 231 and a first mounting bushing 232. The third suspension bracket 231 can be fastened to the second frame beam 112 or the third frame beam 113 by a fastener such as a bolt, and the third suspension bracket 231 is used to connect with a motor. The first mounting bushing 232 is sleeved on the outer periphery of the fastener, and the first mounting bushing 232 is located between the fastener and the third suspension bracket 231.

[0055] In an embodiment, the rear subframe assembly 10b further comprises a second conversion beam 122, and the first conversion beam 121 and the second conversion beam 122 are alternatively mounted to the beam mounting portion 114. In other words, when the rear subframe assembly 10b is in the first state, the first conversion beam 121 is mounted to the beam mounting portion 114, and the second conversion beam 122 is not mounted to the beam mounting portion 114. When the rear subframe assembly 10b is in the second state, the second conversion beam 122 is mounted to the beam mounting portion 114, and the first conversion beam 121 is not mounted to the beam mounting portion 114.

[0056] The second conversion beam 122 is not provided with the second suspension assembly 22. Based on the above description that the end of the second frame beam 112 away from the first frame beam 111 and the end of the third frame beam 113 away from the first frame beam 111 form the beam mounting portion 114 in the first direction X, the second conversion beam 122 is connected with the end of the second frame beam 112 away from the first frame beam 111 and the end of the third frame beam 113 away from the first frame beam 111 respectively in this embodiment. The second conversion beam 122 is mounted on the beam mounting portion 114 instead of the first conversion beam 121. The second conversion beam 122 connects the second frame beam 112 and the third frame beam 113, so that the overall structure of the first sub-frame body 11 is relatively complete, and the missing beam mounting portion 114 between the second frame beam 112 and the third frame beam 113 does not affect the overall structural strength of the first sub-frame body 11 after the first conversion beam 121 is removed.

[0057] In an embodiment, the second frame beam 112 includes a first connecting beam portion 1121 and a first extending beam portion 1122. The first connecting beam portion 1121 is connected to one end of the first frame beam 111 in the first direction X, and the first connecting beam portion 1121 is located on one side of the first frame beam 111 in the second direction Y. The first extending beam portion 1122 is connected to the end of the first connecting beam portion 1121 away from the first frame beam 111 in the second direction Y, and the first extending beam portion 1122 is located on the side of the first connecting beam portion 1121 close to the third frame beam 113 in the first direction X. The first extending beam portion 1122 forms the beam mounting portion 114 with the third frame beam 113 in the first direction X, specifically, the first extending beam portion 1122 and the third frame beam 113 are spaced apart in the first direction X, and the gap between the first extending beam portion 1122 and the third frame beam 113 in the first direction X is the beam mounting portion 114.

[0058] In the above manner, the second frame beam 112 is provided with the first extending beam portion 1122 extending in the first direction X, which can reduce the size of the beam mounting portion 114 in the first direction X, and further reduce the influence of the design of the default beam structure of the beam mounting portion 114 on the overall structural strength of the first sub-frame body 11, that is, it is beneficial to ensure the overall structural strength of the first sub-frame body 11.

[0059] Further, the suspension mounting portion 115 of the second frame beam 112 is arranged on the first connecting beam portion 1121, so that after the third suspension assembly 23 is mounted on the suspension mounting portion 115 of the second frame beam 112, the third suspension assembly 23 on the second frame beam 112 and the adjacent first suspension assembly 21 can be conveniently installed together.

[0060] In an embodiment, the third frame beam 113 comprises a second connecting beam portion 1131 and a second extending beam portion 1132. The second connecting beam portion 1131 is connected to the other end of the first frame beam 111 in the first direction X, and the second connecting beam portion 1131 and the second frame beam 112 are located on the same side of the first frame beam 111 in the second direction Y. The second extending beam portion 1132 is connected to the end of the second connecting beam portion 1131 away from the first frame beam 111 in the second direction Y, and the second extending beam portion 1132 is located on the side of the second connecting beam portion 1131 close to the second frame beam 112 in the first direction X. The second extending beam portion 1132 and the second frame beam 112 form a beam mounting portion 114 in the first direction X, specifically, the second extending beam portion 1132 and the second frame beam 112 are spaced apart from each other in the first direction X, and the gap between the second extending beam portion 1132 and the second frame beam 112 in the first direction X is the beam mounting portion 114. In other words, the end of the second extending beam portion 1132 away from the second connecting beam portion 1131 and the end of the first extending beam portion 1122 away from the first connecting beam portion 1121 are spaced apart from each other in the first direction X to form the beam mounting portion 114.

[0061] In the above manner, the third frame beam 113 is provided with the second extending beam portion 1132 extending in the first direction X, which can reduce the size of the beam mounting portion 114 in the first direction X, and further reduce the influence of the design of the beam mounting portion 114 on the overall structural strength of the first sub-frame body 11, that is, it is beneficial to ensure the overall structural strength of the first sub-frame body 11.

[0062] Further, the suspension mounting portion 115 of the third frame beam 113 is arranged on the second connecting beam portion 1131, so that after the third suspension assembly 23 is mounted on the suspension mounting portion 115 of the third frame beam 113, the third suspension assembly 23 on the third frame beam 113 can be conveniently installed with the adjacent first suspension assembly 21 to install the motor.

[0063] In an embodiment, the rear sub-frame assembly 10b further comprises a reinforcing beam 13 which is detachably mounted on the first sub-frame body 11. In this way, the rear sub-frame assembly 10b of the embodiment is provided with the reinforcing beam 13 to improve the overall structural strength of the rear sub-frame assembly 10b. Moreover, the reinforcing beam 13 of the embodiment is detachably mounted on the first sub-frame body 11, which can facilitate the design and installation of the reinforcing beam 13 on the one hand, and the first sub-frame body 11 can be compatible with the design of the rear sub-frame assembly 10b with the reinforcing beam 13 and without the reinforcing beam 13, further improving the compatibility of the first sub-frame body 11 and maximizing the platform generalization rate requirement.

[0064] Specifically, based on the first sub-frame body 11 comprising the second frame beam 112 and the third frame beam 113, the reinforcing beam 13 of the embodiment is connected with the second frame beam 112 and the third frame beam 113 respectively. The reinforcing beam 13 can be fastened to the second frame beam 112 and the third frame beam 113 by bolts and other fasteners, and the detachable design between the reinforcing beam 13 and the second frame beam 112 and the third frame beam 113 is realized.

[0065] It should be noted that for vehicles of pure electric and the like, since the powertrain of the vehicle does not include an engine, the second sub-frame body 14 of the front sub-frame assembly 10a can be omitted. In this way, the front sub-frame assembly 10a and the rear sub-frame assembly 10b of the embodiment can be designed similarly, reducing the differentiated design of the front sub-frame assembly 10a and the rear sub-frame assembly 10b in terms of structure, using the same first sub-frame body 11 to realize the design of matching the front sub-frame assembly 10a and the rear sub-frame assembly 10b with the least structural changes, further improving the platform generalization rate and reducing the development cost of vehicle models.

[0066] The front sub-frame assembly of the embodiment of the application is described below.

[0067] Please refer to Figure 8 and Figure 9 , Figure 8 is a structural schematic view of the front sub-frame assembly of the application in a first state, Figure 9 is a structural schematic view of the front sub-frame assembly of the application in a second state.

[0068] In an embodiment, the front sub-frame assembly 10a comprises a first sub-frame body 11, and the first sub-frame body 11 is provided with a first suspension assembly 21, a beam mounting portion 114 and a suspension mounting portion 115. The beam mounting portion 114 is mounted with a first conversion beam 121, and the first conversion beam 121 is provided with a second suspension assembly 22, and the first suspension assembly 21 and the second suspension assembly 22 are used to cooperate to mount a motor; or, the suspension mounting portion 115 is mounted with a third suspension assembly 23, and the first suspension assembly 21 and the third suspension assembly 23 are used to cooperate to mount a motor.

[0069] In other words, the front subframe assembly 10a has a first state and a second state. When the front subframe assembly 10a is in the first state, the beam mounting portion 114 is mounted with the first conversion beam 121, and the first suspension assembly 21 and the second suspension assembly 22 are configured to cooperate to mount the motor. When the front subframe assembly 10a is in the second state, the suspension mounting portion 115 is mounted with the third suspension assembly 23, and the first suspension assembly 21 and the third suspension assembly 23 are configured to cooperate to mount the motor. The front subframe assembly 10a is ultimately in either the first state or the second state, i.e., the first state and the second state do not exist in the front subframe assembly 10a at the same time.

[0070] In the above manner, the front subframe assembly 10a of the present embodiment can be compatible with different arrangements of the motor (power assembly), and can realize different arrangements of the power assembly without replacing the first subframe body 11, thereby meeting the platform generalization rate requirement. Moreover, the present embodiment does not replace the first subframe body 11, and can avoid the problems of increased development cost of parts and complex assembly process caused by the change of the subframe body in the prior art, thereby saving the development cost of parts and simplifying the assembly process.

[0071] It should be noted that the first subframe body 11 of the present embodiment can be an integrated cast aluminum structure, etc. The first subframe body 11 effectively reduces the assembly process of parts, and uses the same subframe body to realize the matching of different power assemblies with minimal structural changes, thereby maximizing the platform generalization rate and reducing the development cost of vehicle models.

[0072] Please refer to Figure 10 and Figure 11 , Figure 10 is a structural schematic view of a subframe body of the front subframe assembly of the present application, Figure 11 is Figure 10 a sectional structural schematic view of the subframe body of the front subframe assembly shown in FIG. 8 in the G-G direction.

[0073] In an embodiment, the front subframe assembly 10a has a first direction X and a second direction Y perpendicular to each other. The first subframe body 11 includes a first frame beam 111, a second frame beam 112, and a third frame beam 113. The first frame beam 111 is provided with the first suspension assembly 21. The second frame beam 112 is connected to one end of the first frame beam 111 in the first direction X, and the second frame beam 112 is located on one side of the first frame beam 111 in the second direction Y. The third frame beam 113 is connected to the other end of the first frame beam 111 in the first direction X, and the second frame beam 112 and the third frame beam 113 are located on the same side of the first frame beam 111 in the second direction Y. The end of the second frame beam 112 away from the first frame beam 111 and the end of the third frame beam 113 away from the first frame beam 111 form a beam mounting portion 114 in the first direction X, specifically, the gap between the end of the second frame beam 112 away from the first frame beam 111 and the end of the third frame beam 113 away from the first frame beam 111 in the first direction X is the beam mounting portion 114. The second frame beam 112 and / or the third frame beam 113 is provided with a suspension mounting portion 115.

[0074] It should be noted that the second frame beam 112 and the third frame beam 113 are both provided with the suspension mounting portion 115 in the optional embodiment of the present application. The form of the suspension mounting portion 115 can be reasonably designed according to the fixing mode of the third suspension assembly 23. For example, Figure 11 Taking the suspension mounting portion 115 on the second frame beam 112 as an example, the third suspension assembly 23 is fastened to the second frame beam 112 by bolts or other fasteners, and the suspension mounting portion 115 corresponds to the bolt hole. It can be understood that, if the third suspension assembly 23 is installed on the second frame beam 112 by welding, the suspension mounting portion 115 can correspond to the area on the second frame beam 112 used for welding the third suspension assembly 23, which is not limited herein. The suspension mounting portion 115 on the third frame beam 113 is the same.

[0075] In an embodiment, the first state of the front subframe assembly 10a corresponds to the layout scheme of a single motor. Specifically, the number of the first suspension assemblies 21 is at least two, and each first suspension assembly 21 is distributed at intervals along the first direction X. When the beam mounting portion 114 is mounted with the first conversion beam 121, the second suspension assembly 22 is located between the two adjacent first suspension assemblies 21 in the first direction X, and each first suspension assembly 21 and the second suspension assembly 22 are used to cooperatively install the same motor.

[0076] For example, there are two first suspension assemblies 21, each disposed at the ends of the first frame beam 111 in the first direction X. The first transfer beam 121 is disposed between the end of the second frame beam 112 distal from the first frame beam 111 and the end of the third frame beam 113 distal from the first frame beam 111. A second suspension assembly 22 is disposed on the first transfer beam 121, positioned between the two first suspension assemblies 21 in the first direction X. Each first suspension assembly 21 and second suspension assembly 22 cooperates to mount the same motor, forming a three-point centroidal arrangement of the motors.

[0077] like Figure 12 As shown, the second suspension assembly 22 includes a second suspension support 221 and a second suspension bushing 222. The second suspension support 221 can be fastened to the first transfer beam 121 using fasteners such as bolts. The second suspension support 221 is provided with a second suspension bushing 222, which is used to connect to the motor, thereby mounting the motor on the front subframe assembly 10a. The connection between the second suspension bushing 222 and the motor is within the scope of understanding of those skilled in the art and will not be further described here.

[0078] In one embodiment, the second state of the front subframe assembly 10a corresponds to a dual-motor arrangement. Specifically, there are at least two first suspension assemblies 21, each spaced apart along the first direction X. The second frame rail 112 and the third frame rail 113 are each provided with a suspension mounting portion 115. The suspension mounting portion 115 on the second frame rail 112 is mounted with a third suspension assembly 23, and the third suspension assembly 23 on the second frame rail 112 and the adjacent first suspension assembly 21 are used to mount the same motor. The suspension mounting portion 115 on the third frame rail 113 is mounted with a third suspension assembly 23, and the third suspension assembly 23 on the third frame rail 113 and the adjacent first suspension assembly 21 are used to mount the same motor. The third suspension assembly 23 on the second frame rail 112 and the third suspension assembly 23 on the third frame rail 113 are each used to mount a different motor, achieving a four-point dual-motor suspension arrangement.

[0079] For example, the number of the first suspension components 21 is two, and the two first suspension components 21 are respectively disposed at both ends of the first frame beam 111 in the first direction X. Figure 13As shown, the first suspension assembly 21 comprises a first mounting bracket 211, a first suspension bracket 212, and a first suspension bushing 213. The first mounting bracket 211 is welded to the first frame beam 111, the first suspension bracket 212 can be fastened to the first frame beam 111 by bolts or other fasteners, the first suspension bracket 212 is provided with the first suspension bushing 213, and the first suspension bushing 213 is used to connect with the motor to realize the installation of the motor on the front subframe assembly 10a. The connection mode between the first suspension bushing 213 and the motor belongs to the understanding range of those skilled in the art, and will not be repeated here.

[0080] The first suspension assembly 21 close to the second frame beam 112 and the third suspension assembly 23 on the second frame beam 112 are used to cooperatively install the same motor, the first suspension assembly 21 close to the third frame beam 113 and the third suspension assembly 23 on the third frame beam 113 are used to cooperatively install the same motor, and the third suspension assembly 23 on the second frame beam 112 and the third suspension assembly 23 on the third frame beam 113 are respectively used to install different motors. As shown, Figure 14 As shown, the third suspension assembly 23 comprises a third suspension bracket 231 and a first mounting bushing 232, the third suspension bracket 231 can be fastened to the second frame beam 112 or the third frame beam 113 by bolts or other fasteners (not shown in the figure), the third suspension bracket 231 is used to connect with the motor, the first mounting bushing 232 is sleeved on the outer periphery of the fastener, and the first mounting bushing 232 is located between the fastener and the third suspension bracket 231.

[0081] In an embodiment, the front subframe assembly 10a further comprises a second conversion beam 122, and the first conversion beam 121 and the second conversion beam 122 are alternatively installed on the beam mounting portion 114. In other words, when the front subframe assembly 10a is in the first state, the first conversion beam 121 is installed on the beam mounting portion 114, and the second conversion beam 122 is not installed on the beam mounting portion 114; and when the front subframe assembly 10a is in the second state, the second conversion beam 122 is installed on the beam mounting portion 114, and the first conversion beam 121 is not installed on the beam mounting portion 114.

[0082] The second conversion beam 122 is not provided with the second suspension assembly 22. Based on the above description that the end of the second frame beam 112 away from the first frame beam 111 and the end of the third frame beam 113 away from the first frame beam 111 form the beam mounting portion 114 in the first direction X, the second conversion beam 122 is connected with the end of the second frame beam 112 away from the first frame beam 111 and the end of the third frame beam 113 away from the first frame beam 111 respectively in this embodiment. The second conversion beam 122 is mounted on the beam mounting portion 114 instead of the first conversion beam 121. The second conversion beam 122 connects the second frame beam 112 and the third frame beam 113, so that the overall structure of the first sub-frame body 11 is relatively complete, and the influence of the beam mounting portion 114 between the second frame beam 112 and the third frame beam 113 after the first conversion beam 121 is removed on the overall structural strength of the first sub-frame body 11 is avoided.

[0083] In an embodiment, the second frame beam 112 includes a first connecting beam portion 1121 and a first extending beam portion 1122. The first connecting beam portion 1121 is connected to one end of the first frame beam 111 in the first direction X, and the first connecting beam portion 1121 is located on one side of the first frame beam 111 in the second direction Y. The first extending beam portion 1122 is connected to the end of the first connecting beam portion 1121 away from the first frame beam 111 in the second direction Y, and the first extending beam portion 1122 is located on the side of the first connecting beam portion 1121 close to the third frame beam 113 in the first direction X. The first extending beam portion 1122 forms the beam mounting portion 114 with the third frame beam 113 in the first direction X, specifically, the first extending beam portion 1122 and the third frame beam 113 are spaced apart in the first direction X, and the gap between the first extending beam portion 1122 and the third frame beam 113 in the first direction X is the beam mounting portion 114.

[0084] In the above manner, the second frame beam 112 is provided with the first extending beam portion 1122 extending in the first direction X, which can reduce the size of the beam mounting portion 114 in the first direction X, and further reduce the influence of the design of the default beam structure of the beam mounting portion 114 on the overall structural strength of the first sub-frame body 11, that is, it is beneficial to ensure the overall structural strength of the first sub-frame body 11.

[0085] Further, the suspension mounting portion 115 of the second frame beam 112 is arranged on the first connecting beam portion 1121, so that after the third suspension assembly 23 is mounted on the suspension mounting portion 115 of the second frame beam 112, the third suspension assembly 23 on the second frame beam 112 and the adjacent first suspension assembly 21 can be conveniently installed together.

[0086] In an embodiment, the third frame beam 113 comprises a second connecting beam portion 1131 and a second extending beam portion 1132. The second connecting beam portion 1131 is connected to the other end of the first frame beam 111 in the first direction X, and the second connecting beam portion 1131 and the second frame beam 112 are located on the same side of the first frame beam 111 in the second direction Y. The second extending beam portion 1132 is connected to the end of the second connecting beam portion 1131 away from the first frame beam 111 in the second direction Y, and the second extending beam portion 1132 is located on the side of the second connecting beam portion 1131 close to the second frame beam 112 in the first direction X. The second extending beam portion 1132 and the second frame beam 112 form a beam mounting portion 114 in the first direction X, specifically, the second extending beam portion 1132 and the second frame beam 112 are spaced apart from each other in the first direction X, and the gap between the second extending beam portion 1132 and the second frame beam 112 in the first direction X is the beam mounting portion 114. In other words, the end of the second extending beam portion 1132 away from the second connecting beam portion 1131 and the end of the first extending beam portion 1122 away from the first connecting beam portion 1121 are spaced apart from each other in the first direction X to form the beam mounting portion 114.

[0087] In the above manner, the third frame beam 113 is provided with the second extending beam portion 1132 extending in the first direction X, which can reduce the size of the beam mounting portion 114 in the first direction X, and further reduce the influence of the design of the default partial beam structure of the beam mounting portion 114 on the overall structural strength of the first sub-frame body 11, that is, it is beneficial to ensure the overall structural strength of the first sub-frame body 11.

[0088] Further, the suspension mounting portion 115 of the third frame beam 113 is arranged on the second connecting beam portion 1131, so that after the third suspension assembly 23 on the third frame beam 113 is mounted on the suspension mounting portion 115, the third suspension assembly 23 on the third frame beam 113 and the adjacent first suspension assembly 21 can be cooperatively mounted with the motor.

[0089] In an embodiment, the front sub-frame assembly 10a further comprises a second sub-frame body 14 connected to the first sub-frame body 11, and the second sub-frame body 14 is provided with a fourth suspension assembly 24 for mounting the engine.

[0090] Specifically, in the second direction Y, the second sub-frame body 14 is connected to the second frame beam 112 and the third frame beam 113 away from the first frame beam 111. For hybrid, extended range, and the like vehicles, the powertrain of the vehicle often also includes an engine, which is usually arranged on the front sub-frame assembly 10a. In view of this, the front sub-frame assembly 10a of the present embodiment is provided with the second sub-frame body 14, and the fourth suspension assembly 24 for mounting the engine is arranged on the second sub-frame body 14, so as to be compatible with the arrangement of the engine of the hybrid, extended range, and the like vehicles, further compatible with the arrangement of different powertrains, and meet the platform generalization rate requirements.

[0091] It should be noted that the first sub-frame body 11 and the second sub-frame body 14 of the present embodiment can be an integrated cast aluminum structure, etc. The integrated design of the first sub-frame body 11 and the second sub-frame body 14 effectively reduces the assembly process of the parts, and the same sub-frame body is used to realize the matching of different powertrains with the minimum structural change, maximize the platform generalization rate, and reduce the development cost of the vehicle model.

[0092] Of course, for pure electric and the like vehicles, since the powertrain of the vehicle does not include an engine, the front sub-frame assembly 10a can omit the second sub-frame body 14, so as to further simplify the structure of the front sub-frame assembly 10a, save the development cost of parts, and simplify the assembly process. Of course, for pure electric and the like vehicles, the front sub-frame assembly 10a can also retain the second sub-frame body 14, so that the front sub-frame assembly 10a of the present embodiment can be compatible with the design of more vehicle models such as hybrid, extended range, and pure electric, improve the platform generalization rate, and reduce the development cost of the vehicle model.

[0093] In summary, the present application provides a sub-frame assembly and a vehicle. The beam mounting portion on the first sub-frame body of the sub-frame assembly is mounted with a first conversion beam, and the first conversion beam is provided with a second suspension assembly. The first suspension assembly and the second suspension assembly are used to cooperatively mount a motor. Alternatively, the suspension mounting portion on the first sub-frame body is mounted with a third suspension assembly. The first suspension assembly and the third suspension assembly are used to cooperatively mount a motor.

[0094] In other words, the sub-frame assembly of the present application can be compatible with different arrangement modes of the motor (powertrain), and can realize different arrangement modes of the powertrain without replacing the first sub-frame body, so as to meet the platform generalization rate requirements. Moreover, the present application does not replace the first sub-frame body, which can avoid the problems such as the increase of the development cost of parts and the complexity of the assembly process caused by the change of the sub-frame body in the prior art. Therefore, the present application can save the development cost of parts and simplify the assembly process.

[0095] The auxiliary frame assembly and the vehicle provided by the application are described in detail above, and the principles and implementation manners of the application are described by using specific examples in this paper; the above description of the examples is only used to help understand the method of the application and its core idea; meanwhile, for those skilled in the art, according to the idea of the application, the specific implementation manners and application ranges will be changed, and the above description should not be understood as a limitation on the application.

Claims

1. A subframe assembly characterized by, The first subframe body (11) is provided with a first suspension assembly (21), a beam mounting portion (114), and a suspension mounting portion (115); The beam mounting portion (114) is mounted with a first conversion beam (121) provided with a second suspension assembly (22), and the first suspension assembly (21) and the second suspension assembly (22) are used for cooperatively mounting a motor; or, the suspension mounting portion (115) is mounted with a third suspension assembly (23), and the first suspension assembly (21) and the third suspension assembly (23) are used for cooperatively mounting a motor.

2. The subframe assembly according to claim 1, wherein, the subframe assembly has a first direction (X) and a second direction (Y) perpendicular to each other; the first subframe body (11) comprises: a first frame beam (111) provided with the first suspension assembly (21); a second frame beam (112) connected to one end of the first frame beam (111) in the first direction (X), and located on one side of the first frame beam (111) in the second direction (Y); and a third frame beam (113) connected to the other end of the first frame beam (111) in the first direction (X), and the second frame beam (112) and the third frame beam (113) are located on the same side of the first frame beam (111) in the second direction (Y); wherein the end of the second frame beam (112) away from the first frame beam (111) and the end of the third frame beam (113) away from the first frame beam (111) form the beam mounting portion (114) in the first direction (X); and the second frame beam (112) and / or the third frame beam (113) are provided with the suspension mounting portion (115).

3. The subframe assembly according to claim 2, wherein, the number of the first suspension assemblies (21) is at least two, and each of the first suspension assemblies (21) is spaced apart along the first direction (X); wherein, when the beam mounting portion (114) is mounted with the first conversion beam (121), the second suspension assembly (22) is located between two adjacent first suspension assemblies (21) in the first direction (X), and each of the first suspension assemblies (21) and the second suspension assembly (22) is used for cooperatively mounting the same motor.

4. The subframe assembly according to claim 2, wherein, the number of the first suspension assemblies (21) is at least two, and each of the first suspension assemblies (21) is spaced apart along the first direction (X); and the second frame beam (112) and the third frame beam (113) are respectively provided with the suspension mounting portion (115). The suspension mounting portion (115) on the second frame beam (112) is provided with the third suspension assembly (23), and the third suspension assembly (23) on the second frame beam (112) is used for cooperatively mounting the same motor with the adjacent first suspension assembly (21). The suspension mounting portion (115) on the third frame beam (113) is provided with the third suspension assembly (23), and the third suspension assembly (23) on the third frame beam (113) is used for cooperatively mounting the same motor with the adjacent first suspension assembly (21).

5. The subframe assembly according to claim 2, wherein, the subframe assembly further comprises a second conversion beam (122), and the first conversion beam (121) and the second conversion beam (122) are alternatively mounted on the beam mounting portion (114); wherein the second conversion beam (122) is connected with the end of the second frame beam (112) away from the first frame beam (111) and the end of the third frame beam (113) away from the first frame beam (111) respectively.

6. The subframe assembly according to claim 2, wherein, the second frame beam (112) comprises: a first connecting beam portion (1121) connected to one end of the first frame beam (111) in the first direction (X), and located on one side of the first frame beam (111) in the second direction (Y); and a first extending beam portion (1122) connected to the end of the first connecting beam portion (1121) in the second direction (Y) away from the first frame beam (111), and located on the side of the first connecting beam portion (1121) in the first direction (X) close to the third frame beam (113), and the first extending beam portion (1122) forms the beam mounting portion (114) with the third frame beam (113) in the first direction (X).

7. The subframe assembly of claim 6, wherein The suspension mounting portion (115) is arranged on the first connecting beam portion (1121).

8. The subframe assembly according to claim 2, wherein, the third frame beam (113) comprises: a second connecting beam portion (1131) connected to the other end of the first frame beam (111) in the first direction (X), and located on the same side of the first frame beam (111) in the second direction (Y) as the second frame beam (112); and a second extending beam portion (1132) connected to the end of the second connecting beam portion (1131) in the second direction (Y) away from the first frame beam (111), and located on the side of the second connecting beam portion (1131) in the first direction (X) close to the second frame beam (112), and the second extending beam portion (1132) forms the beam mounting portion (114) with the second frame beam (112) in the first direction (X).

9. The subframe assembly of claim 8, wherein, The suspension mounting portion (115) is provided to the second connecting beam portion (1131).

10. The subframe assembly according to any one of claims 1 to 9, characterized in that, The subframe assembly further comprises: A reinforcement beam (13) detachably mounted to the first subframe body (11).

11. The subframe assembly according to claim 2, characterized in that, The subframe assembly further comprises: A reinforcement beam (13) connected to the second frame beam (112) and the third frame beam (113), respectively.

12. The subframe assembly according to any one of claims 1 to 9, characterized in that, The subframe assembly further comprises: A second subframe body (14) connected to the first subframe body (11), the second subframe body (14) being provided with a fourth suspension assembly (24) for mounting an engine.

13. The subframe assembly according to any one of claims 1 to 9, characterized in that, The subframe assembly is a front subframe assembly (10a) or a rear subframe assembly (10b).

14. A vehicle characterized by comprising: A vehicle comprising the subframe assembly according to any one of claims 1 to 13.

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