CN211223603U - Subframe assembly - Google Patents

Abstract

The utility model provides a sub-frame assembly, which comprises a sub-frame and a power front suspension bracket, the sub-frame has an installation interface for connecting the power front suspension bracket, and the power front suspension bracket comprises a first bracket and a second bracket, The first bracket is detachably connected to the installation interface, the second bracket is arranged on one side of the first bracket along the horizontal direction, and is welded to the surface of the subframe, and the first bracket and the second bracket are used to jointly connect the power front suspension assembly . When the position of the subframe assembly is changed with the connected power front suspension assembly, the power front suspension bracket is divided into two parts, and the split installation method of welding and mechanical assembly is adopted to achieve The original installation interface is used to achieve the purpose of connecting with the power front suspension assembly after the position has been changed. The subframe assembly is only a redesigned power front suspension bracket, so the verification period is short, which is beneficial to the reduction of project development costs and the control of development time.

Description

Subframe assembly

technical field

The utility model relates to the field of vehicle components, in particular to a sub-frame assembly.

Background technique

The subframe assembly can be regarded as the skeleton of the front and rear axles of the vehicle, and is an important part of the vehicle structure. As shown in FIG. 1 , the subframe assembly 100' includes a subframe 1' and a power front suspension bracket 2'. One end of the power front suspension bracket 2' is fixed at the installation interface 11' of the subframe 1', and the other One end is connected with the power front suspension assembly (not shown in the figure) through the installation point 21'.

However, for electric vehicles, since there are many models of electric motors, if the electric motor model is changed due to vehicle modification (ie, the powertrain is changed), it is easy to cause the connection position of the power front suspension assembly and the power front suspension bracket 2' to be along the edge. The horizontal direction A is offset. If the position of the above-mentioned installation point 21' needs to be greatly offset from the installation interface 11', the existing installation interface 11' will no longer be able to meet the strength and rigidity required for connecting the power front suspension assembly. In this case , it is necessary to redesign the position of the installation interface 11' of the sub-frame 1'. This design change will lead to the redesign and mold opening verification of the subframe, which will further complicate the vehicle design and development process, resulting in an increase in research and development costs, which is not conducive to cost reduction.

Utility model content

The technical problem to be solved by the present utility model is to provide a sub-frame assembly in order to overcome the defect of the electric vehicle in the prior art that the sub-frame needs to be redesigned due to the change of the power assembly, thereby resulting in the cost of research and development.

The utility model solves the above-mentioned technical problems through the following technical solutions:

A subframe assembly includes a subframe and a power front suspension bracket, the subframe has an installation interface for connecting the power front suspension bracket, and the power front suspension bracket includes a first bracket and a second bracket A bracket, the first bracket is detachably connected to the installation interface, the second bracket is arranged on one side of the first bracket along the horizontal direction, and is welded to the surface of the subframe, the first bracket The bracket and the second bracket are used to jointly connect the power front suspension assembly.

When the position of the subframe assembly is changed with the connected power front suspension assembly, the power front suspension bracket is divided into two parts, and the split installation method of welding and mechanical assembly is adopted to achieve The original installation interface is used to achieve the purpose of connecting with the power front suspension assembly after the position has been changed.

The subframe assembly is not remanufactured or redesigned on the basis of the original subframe, but only the power front suspension bracket is redesigned. Therefore, the verification period is short and the R&D cost is low, which is beneficial to the reduction of project R&D costs and the development of R&D. time control.

Preferably, the first bracket has a first installation hole, the second bracket has a second installation hole, and both the first installation hole and the second installation hole are used to connect the power front suspension assembly , the first mounting hole and the second mounting hole are coaxially arranged.

Preferably, the power front suspension assembly is installed between the first bracket and the second bracket to ensure the fixing effect between the power front suspension assembly and the two brackets.

Preferably, the first bracket further includes a fixing point connected to the installation interface, the fixing point is arranged on the side of the first installation hole of the first bracket away from the second installation hole, so as to This improves the connection reliability between the entire power front suspension bracket and the changed position of the power front suspension assembly.

Preferably, the installation interface comprises a threaded hole longitudinally penetrating the subframe, the first bracket comprises a bracket plate and a sleeve welded to each other, the sleeve has a through hole penetrating in the axial direction, the The through hole and the threaded hole of the installation interface are connected by bolts, and the first installation hole is formed on the surface of the bracket plate.

Preferably, the installation interface further includes an accommodating space formed on the surface of the sub-frame, and the first bracket is partially disposed in the accommodating space to improve the connection effect between the installation interface and the first bracket.

Preferably, the two sides of the bracket plate have folds, the sleeve is accommodated in the space enclosed by the two folds of the bracket plate, and the two folds cover the sleeve respectively. The end faces on both sides of the through hole are hollowed out at the position of the through hole, so that the sleeve is more firmly fixed with the bracket plate.

Preferably, the support plate is a sheet metal bent part.

Preferably, the first bracket further includes a reinforcing plate, and the reinforcing plate is arranged in the space enclosed by the two folded edges of the bracket plate, so as to strengthen the structural strength of the entire first bracket.

The positive progressive effect of the present utility model is:

When the position of the subframe assembly is changed with the connected power front suspension assembly, the power front suspension bracket is divided into two parts, and the split installation method of welding and mechanical assembly is adopted to achieve The original installation interface is used to achieve the purpose of connecting with the power front suspension assembly after the position has been changed.

The subframe assembly is not remanufactured or redesigned on the basis of the original subframe, but only the power front suspension bracket is redesigned, so the verification period is short, which is beneficial to the reduction of project development costs and the control of development time.

Description of drawings

FIG. 1 is a schematic structural diagram of a sub-frame assembly in the prior art.

2 is a schematic structural diagram of a sub-frame assembly according to an embodiment of the present invention.

3 is a schematic structural diagram of a subframe according to an embodiment of the present invention.

4 is a schematic structural diagram of a first bracket according to an embodiment of the present invention.

5 is a schematic structural diagram of a reinforcing plate according to an embodiment of the present invention.

Description of reference numbers:

current technology

Subframe assembly 100'

Subframe 1'

Installation interface 11'

Power front suspension bracket 2'

Mounting point 21'

The utility model

Subframe assembly 100

Subframe 1

Mounting interface 11, threaded hole 11a, accommodating space 11b

The first bracket 21, the first mounting hole 21a

Bracket plate 211, folded edge 211a

Sleeve 212, through hole 212a

Reinforcing plate 213

The second bracket 22, the second mounting hole 22a

Detailed ways

A preferred embodiment is given below, and the present utility model will be more clearly and completely described with reference to the accompanying drawings.

As shown in FIG. 2 and FIG. 3 , the present invention provides a sub-frame assembly 100, which includes a sub-frame 1 and a power front suspension bracket, and the sub-frame 1 is provided with an installation interface for connecting the power front suspension bracket 11. The power front suspension bracket includes a first bracket 21 and a second bracket 22, wherein the first bracket 21 and the mounting interface 11 of the sub-frame 1 are fixed by bolts, and the second bracket 22 is provided with the first bracket 21 along the horizontal direction. One side of the direction A, and connected to the surface of the subframe 1 by welding and fixing, the first bracket 21 and the second bracket 22 are used to jointly connect the power front suspension assembly (not shown in the figure) to realize the auxiliary frame. The purpose of connecting and fixing the frame 1 to the powertrain.

When the position of the sub-frame assembly 100 is changed with the connected power front suspension assembly, the power front suspension bracket is divided into two parts, and the split installation method of welding and mechanical assembly is adopted. In order to use the original installation interface 11 to achieve the purpose of connecting with the power front suspension assembly whose position has been changed.

The subframe assembly 100 is not remanufactured or redesigned on the basis of the original subframe 1, but only the power front suspension bracket is redesigned, so the verification period is short, the research and development cost is low, which is beneficial to the reduction of project costs and The control of development time is especially suitable for vehicles such as electric vehicles with more frequent model changes of power components.

As shown in FIG. 2, a first mounting hole 21a is provided on the first bracket 21, and correspondingly, a second mounting hole 22a is provided on the second bracket 22, and the two mounting holes are coaxially arranged to It is used to be connected to the power front suspension assembly together, so that the connection position of the power front suspension assembly and the power front suspension bracket can be horizontally offset relative to the installation interface 11 of the subframe 1 . The power front suspension assembly is installed at a position between the first bracket 21 and the second bracket 22 to ensure the fixing effect between the power front suspension assembly and the two brackets.

As shown in FIGS. 3 and 4 , the mounting interface 11 on the sub-frame 1 includes a threaded hole 11 a longitudinally extending through the sub-frame 1 . In this embodiment, a nut is welded to the through hole on the surface of the sub-frame 1 . to fulfill. The first bracket 21 includes a bracket plate 211 and a sleeve 212 welded to each other, wherein the sleeve 212 has a through hole 212a extending through itself in the axial direction, and the through hole 212a and the threaded hole 11a of the installation interface 11 pass through The bolts are fixedly connected, and the first mounting holes 21 a are formed on the surface of the bracket plate 211 .

In addition, the mounting interface 11 on the sub-frame 1 further includes an accommodating space 11b formed on the surface of the sub-frame 1, and the side of the first bracket 21 with the sleeve 212 is accommodated in the accommodating space 11b, so as to improve the mounting interface 11 and the connection effect of the first bracket 21.

The upper and lower sides of the bracket plate 211 are provided with folded edges 211 a , and a space is formed between the upper and lower folded edges 211 a for accommodating the sleeve 212 , so that the sleeve 212 is more firmly fixed to the bracket plate 211 . The two folded edges 211a respectively cover the end faces on both sides of the sleeve 212, and are hollowed out at the positions of the through holes 212a of the sleeve 212 for bolts to penetrate.

The first bracket 21 also includes a reinforcing plate 213. In this embodiment, the reinforcing plate 213 is in an “L” shape as shown in FIG. In the space, its two ends are welded to the bracket plate 211 and the sleeve 212 respectively, so as to strengthen the structural strength of the entire first bracket 21, and the first bracket 21 protrudes from the installation interface 11 of the sub-frame 1 and is single. The strength and rigidity of the connecting structure are ensured when the power front suspension assembly is laterally connected.

Preferably, the above-mentioned sleeve 212 is made of steel pipe, and the above-mentioned support plate 211 and the reinforcing plate 213 are made of sheet metal bending, and the strength of the parts is improved by mutual welding.

In addition, as shown in FIG. 2 , the through hole 212a (ie, the fixing point) of the first bracket 21 for connecting with the installation interface 11 is located on the side of the first installation hole 21a of the first bracket 21 away from the second installation hole 22a, When the first bracket 21 is fixed to the subframe 1, the first mounting hole 21a is as close as possible to the second bracket 22 side, so as to improve the distance between the entire power front suspension bracket and the power front suspension assembly after the position has been changed. connection reliability.

Although the specific embodiments of the present invention are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims (9)

1. A subframe assembly comprising a subframe and a power front suspension bracket, the subframe having a mounting interface for connecting the power front suspension bracket, wherein the power front suspension bracket comprises A first bracket and a second bracket, the first bracket is detachably connected to the installation interface, the second bracket is arranged on one side of the first bracket in the horizontal direction, and is welded to the subframe. On the surface, the first bracket and the second bracket are used to jointly connect the power front suspension assembly. 2 . The subframe assembly of claim 1 , wherein the first bracket has a first mounting hole, the second bracket has a second mounting hole, the first mounting hole and the The second installation holes are all used for connecting the power front suspension assembly, and the first installation holes and the second installation holes are coaxially arranged. 3. The subframe assembly of claim 2, wherein the power front suspension assembly is mounted between the first bracket and the second bracket. 4 . The sub-frame assembly of claim 2 , wherein the first bracket further comprises a fixing point connected to the mounting interface, the fixing point being disposed on the first side of the first bracket. 5 . The mounting hole is away from the side of the second mounting hole. 5. The subframe assembly of claim 2, wherein the mounting interface comprises a threaded hole extending longitudinally through the subframe, the first bracket comprises a bracket plate and a sleeve welded to each other, The sleeve has a through hole penetrating along the axis direction, the through hole is connected with the threaded hole of the installation interface by bolts, and the first installation hole is formed on the surface of the bracket plate. 6 . The sub-frame assembly of claim 5 , wherein the mounting interface further comprises an accommodating space formed on a surface of the sub-frame, and the first bracket portion is disposed in the accommodating space 6 . Inside. 7 . The sub-frame assembly of claim 5 , wherein two sides of the bracket plate are provided with folded edges, and the sleeve is accommodated in a space surrounded by two of the folded edges of the bracket plate. 8 . In the space, the two folded edges respectively cover the end faces on both sides of the sleeve, and are hollowed out at the positions of the through holes. 8 . The subframe assembly of claim 7 , wherein the bracket plate is a sheet metal bent part. 9 . 9 . The sub-frame assembly of claim 7 , wherein the first bracket further comprises a reinforcing plate, and the reinforcing plate is disposed in the space enclosed by the two folded edges of the bracket plate. 10 . Inside.

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