CN219948314U - Sub vehicle frame assembly and vehicle - Google Patents

Abstract

The utility model discloses a subframe assembly and a vehicle. The auxiliary frame assembly comprises an auxiliary frame longitudinal beam, a first bracket, a second bracket and a third bracket, wherein the first bracket is connected with the auxiliary frame longitudinal beam; the second bracket is connected with the first bracket; the third support is connected with the second support, is provided with the compressor installation position that is suitable for being connected with the compressor on the third support, wherein, is provided with the bolster between sub vehicle frame longeron and the first support, between first support and the second support, between second support and the third support and on the compressor installation position at least two in. According to the auxiliary frame assembly, the first bracket, the second bracket and the third bracket which are sequentially connected are arranged on the auxiliary frame longitudinal beam, and the compressor is connected with the auxiliary frame longitudinal beam through the three brackets, so that the stability of the compressor during assembly is improved. The auxiliary frame assembly is provided with the buffer parts between the adjacent three brackets, and the driving experience of the vehicle is improved through secondary vibration reduction.

Description

Sub vehicle frame assembly and vehicle

Technical Field

The utility model relates to the field of vehicles, in particular to a subframe assembly and a vehicle.

Background

In the related art, the compressor of the electric automobile vibrates more than the compressor of the fuel automobile, and when the compressor works, the compressor easily transmits vibration to the passenger cabin, so that the driving experience of the vehicle is affected. The compressor vibration damping design in the prior art is usually primary vibration damping, the vibration damping effect is poor, and the structure of less secondary vibration damping is complex, the cost is high, and the lightweight design of a vehicle is not facilitated.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a subframe assembly. According to the auxiliary frame assembly, the first bracket, the second bracket and the third bracket which are sequentially connected are arranged on the auxiliary frame longitudinal beam, the compressor and the auxiliary frame longitudinal beam are fixed through the compressor installation position on the third bracket, meanwhile, the buffer pieces are arranged between the first bracket and the second bracket and between the second bracket and the third bracket, and driving experience of a vehicle is improved through secondary vibration reduction.

The utility model further provides a vehicle comprising the auxiliary frame assembly.

The auxiliary frame assembly comprises an auxiliary frame longitudinal beam, a first bracket, a second bracket and a third bracket, wherein the first bracket is connected with the auxiliary frame longitudinal beam; the second bracket is connected with the first bracket; the third support is connected with the second support, a compressor installation position suitable for being connected with a compressor is arranged on the third support, and buffer pieces are arranged between the auxiliary frame longitudinal beam and the first support, between the first support and the second support, between the second support and the third support and at least two of the compressor installation positions.

The auxiliary frame assembly is provided with the auxiliary frame longitudinal beam which is fixedly connected with the vehicle body, the auxiliary frame longitudinal beam is provided with the first bracket, and the first bracket and the auxiliary frame longitudinal beam can be fixedly connected in a welding mode. Meanwhile, the auxiliary frame assembly is further provided with a second bracket and a third bracket, wherein the third bracket is provided with a compressor installation position, the compressor can be fixedly connected with the third bracket through a fastener or other modes, the second bracket is used for connecting the third bracket with the first bracket, and the auxiliary frame assembly is matched with the third bracket through the first bracket, the second bracket and the third bracket, so that the auxiliary frame assembly can be connected with an auxiliary frame longitudinal beam along with the third bracket, and the assembly and the fixation of the compressor are realized. Meanwhile, a buffer piece can be arranged between the auxiliary frame longitudinal beam and the first bracket, the buffer piece can be arranged between the first bracket and the second bracket, the buffer piece can be arranged between the second bracket and the third bracket, and the buffer piece can be arranged between the third bracket and the compressor, so that the arrangement of the buffer piece can be determined according to actual conditions. Specifically, under the prerequisite that satisfies the damping demand, sub vehicle frame assembly can only set up the bolster between first support and second support and between second support and the third support, and the setting of dual bolster can ensure the sub vehicle frame assembly to the cushioning effect of compressor vibration, can also reduce the construction quantity of bolster simultaneously, reduces the cost of sub vehicle frame and the complexity of structure, realizes the lightweight of vehicle.

According to one embodiment of the present utility model, the first bracket is formed with a supporting surface, the supporting surface is formed with a first mounting hole penetrating the first bracket in a thickness direction, and a first buffer member is disposed between the first mounting hole and the second bracket.

According to one embodiment of the utility model, the second bracket comprises a second bracket body and a first connecting support leg, a second mounting hole is formed in the second bracket body, and the first buffer piece is arranged between the second mounting hole and the first mounting hole; the first connecting support leg with the support body is connected, the first connecting support leg with the third support is connected, the first connecting support leg with be provided with the second bolster between the third support.

According to one embodiment of the present utility model, the third bracket includes a third bracket body and a second connection leg, the third bracket body having the compressor mounting position formed thereon; the second connecting support leg is connected with the third support body, the second connecting support leg is suitable for being connected with the first connecting support leg, the second connecting support leg with be provided with the second bolster between the first connecting support leg.

According to one embodiment of the utility model, the second buffer member comprises a connecting rod and a flexible member, and two ends of the connecting rod are respectively fixed with the first connecting support leg and the second connecting support leg; the flexible piece is arranged on the connecting rod and between the first connecting support leg and the second connecting support leg.

According to one embodiment of the utility model, the flexible member is configured in a cylindrical shape and the outer periphery of the flexible member is formed with a radially inwardly concave weakening groove.

According to one embodiment of the utility model, the first connecting leg is arranged obliquely with respect to the second bracket body, and the second connecting leg is arranged obliquely with respect to the third bracket body.

According to one embodiment of the present utility model, the first brackets are configured in a plurality of spaced-apart sub-frame rails, and at least one of the first brackets is formed with a relief notch on at least one side in the sub-frame rail length direction.

The vehicle according to the present utility model is briefly described below.

The vehicle according to the present utility model is provided with the sub-frame assembly in the above-described embodiment, and since the vehicle according to the present utility model is provided with the sub-frame assembly in the above-described embodiment, the compressor is integrated with the sub-frame assembly after the compressor is assembled to the sub-frame assembly, thereby improving the stability of the assembly of the compressor. Meanwhile, the auxiliary frame assembly buffers vibration transmitted to the auxiliary frame longitudinal beam by the compressor through the buffer parts at two positions of the auxiliary frame assembly, so that vibration sense transmitted to the inside of the vehicle body is reduced, and driving experience of the vehicle is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a block diagram of a subframe assembly according to one embodiment of the present utility model;

FIG. 2 is an assembly view of a second bracket and a third bracket according to one embodiment of the present utility model;

FIG. 3 is a top view of a first bracket and subframe rail assembled in accordance with one embodiment of the utility model;

FIG. 4 is a cross-sectional view of a subframe assembly according to one embodiment of the utility model.

Reference numerals:

a subframe assembly 1;

a sub-frame rail 10;

the first bracket 11, the supporting surface 111, the first mounting hole 112 and the avoidance gap 113;

a second bracket 12, a second bracket body 121, a first connecting leg 122;

the third bracket 13, the third bracket body 131, the compressor mounting position 1311, the second connection leg 132;

the first buffer member 14 and the clamping groove 141;

the second buffer member 15, the connecting rod 151, the flexible member 152, and the weakened groove 1521.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the related art, the compressor of the electric automobile vibrates more than the compressor of the fuel automobile, and when the compressor works, the compressor easily transmits vibration to the passenger cabin, so that the driving experience of the vehicle is affected. The compressor vibration damping design in the prior art is usually primary vibration damping, the vibration damping effect is poor, and the structure of less secondary vibration damping is complex, the cost is high, and the lightweight design of a vehicle is not facilitated.

A subframe assembly 1 according to an embodiment of the present utility model is described below with reference to fig. 1-4.

The subframe assembly 1 according to the present utility model comprises a subframe rail 10, a first bracket 11, a second bracket 12 and a third bracket 13, said first bracket 11 being connected to said subframe rail 10; the second bracket 12 is connected with the first bracket 11; the third bracket 13 is connected with the second bracket 12, and a compressor mounting position 1311 suitable for being connected with a compressor is arranged on the third bracket 13, wherein at least two of the sub-frame rail 10 and the first bracket 11, the first bracket 11 and the second bracket 12, the second bracket 12 and the third bracket 13 and the compressor mounting position 1311 are provided with buffer members.

The auxiliary frame assembly is characterized in that an auxiliary frame longitudinal beam 10 is fixedly connected with a vehicle body, a first bracket 11 is arranged on the auxiliary frame longitudinal beam 10, and the first bracket 11 and the auxiliary frame longitudinal beam 10 can be fixedly connected through welding and the like. Meanwhile, the auxiliary frame assembly 1 is further provided with a second bracket 12 and a third bracket 13, wherein a compressor mounting position 1311 is arranged on the third bracket 13, the compressor can be fixedly connected with the third bracket 13 through a fastener or other modes, the second bracket 12 is used for connecting the third bracket 13 with the first bracket 11, and the auxiliary frame assembly 1 can be connected with the auxiliary frame longitudinal beam 10 along with the third bracket 13 through mutual matching among the first bracket 11, the second bracket 12 and the third bracket 13, so that the assembly and the fixation of the compressor are realized.

In addition, a buffer may be provided between the subframe rail 10 and the first bracket 11, a buffer may be provided between the first bracket 11 and the second bracket 12, a buffer may be provided between the second bracket 12 and the third bracket 13, and a buffer may be provided between the third bracket 13 and the compressor as well, it being understood that the arrangement of the buffer may be determined according to actual circumstances. Specifically, under the premise of meeting the vibration reduction requirement, the auxiliary frame assembly 1 can only be provided with buffer parts between the first support 11 and the second support 12 and between the second support 12 and the third support 13, the buffer effect of the auxiliary frame assembly 1 on the vibration of the compressor can be ensured through the arrangement of double buffer parts, meanwhile, the number of the buffer parts can be reduced, the cost of the auxiliary frame and the complexity of the structure are reduced, and the light weight of the vehicle is realized.

According to an embodiment of the present utility model, the first bracket 11 is formed with a supporting surface 111, the supporting surface 111 is formed with a first mounting hole 112 penetrating the first bracket 11 in a thickness direction, and a first buffer member 14 is disposed between the first mounting hole 112 and the second bracket 12.

Since the first bracket 11 is connected to the second bracket 12, the configuration of the first bracket 11 may affect the stability of the connection of the first bracket 11 to the second bracket 12. The auxiliary frame assembly 1 connects and integrates the first bracket 11 with the auxiliary frame longitudinal beam 10 in a welding mode and the like, so that the connection stability of the first bracket 11 and the auxiliary frame longitudinal beam 10 is improved. The first bracket 11 is formed with a support surface 111, the first bracket 11 is provided with a first mounting hole 112 penetrating the first bracket 11 in the thickness direction on the support surface 111, when the first bracket 11 is matched with the second bracket 12, the support surface 111 can be opposite to at least part of the surface of the second bracket 12, and the subframe assembly 1 can be provided with a first buffer member 14 in the first mounting hole 112 to be connected with the second bracket 12. Wherein, the supporting surface 111 is opposite to at least part of the surface of the second bracket 12, so that the first buffer member 14 can be vertically arranged during assembly, and the connection stability between the first bracket 11 and the second bracket 12 can be improved. Meanwhile, the first buffer member 14 can reduce the vibration transmitted to the first bracket 11 by the second bracket 12, and improve the buffering and vibration damping performance of the subframe assembly 1.

According to one embodiment of the present utility model, the second bracket 12 includes a second bracket 121 and a first connection leg 122, a second mounting hole is provided on the second bracket 121, and the first buffer member 14 is provided between the second mounting hole and the first mounting hole 112; the first connecting leg 122 is connected with the bracket body, the first connecting leg 122 is connected with the third bracket 13, and a second buffer member 15 is disposed between the first connecting leg 122 and the third bracket 13.

Since the second bracket 12 connects the third bracket 13 with the first bracket 11, the configuration of the second bracket 12 may affect the stability of the structure of the sub-frame assembly 1. The subframe assembly 1 is provided with a second mounting hole on the second bracket 121, and when the second bracket 12 is connected with the first bracket 11, the second mounting hole may be opposite to the first mounting hole 112, and it may be understood that the projection of the second mounting hole in the height direction of the vehicle overlaps with the projection of the first mounting hole 112 in the height direction of the vehicle, and a first buffer member 14 may be disposed between the first mounting hole 112 and the second mounting hole for buffering the vibration transmitted from the second bracket 12 to the first bracket 11. Meanwhile, the auxiliary frame assembly 1 is further provided with the first connecting support leg 122 on the second support 12 and is connected with the second support 121, the second buffer piece 15 can be arranged between the first connecting support leg 122 and the third support 13, and the second buffer piece 15 can buffer the vibration transmitted to the second support 12 by the third support 13, so that the buffering and vibration reduction performance of the auxiliary frame assembly 1 is improved.

According to one embodiment of the present utility model, the outer periphery of the first buffer member 14 is provided with a clamping groove 141, and the clamping groove 141 is adapted to be in clamping fit with the edge of the second mounting hole. Since the first buffer member 14 is disposed between the first bracket 11 and the second bracket 12, the configuration of the first buffer member 14 may affect the stability of the connection of the first bracket 11 and the second bracket 12. The auxiliary frame assembly 1 is provided with a clamping groove 141 at the periphery of the first buffer member 14, and when the first bracket 11 is matched with the second bracket 12, the clamping groove 141 can be matched with the edge of the second mounting hole in a clamping way. Meanwhile, through holes may be formed in the first buffer member 14, and the subframe assembly 1 may be fastened to the first bracket 11 and the second bracket 12 by fastening members such as bolts penetrating through the through holes and being connected to the first bracket 11 and the second bracket 12, respectively, to achieve connection and fixation between the first bracket 11 and the second bracket 12. The design of the clamping groove 141 prevents the first buffer piece 14 from falling off from the second mounting hole, and improves the stability of the connection between the first bracket 11 and the second bracket 12.

According to an embodiment of the present utility model, the third bracket 13 includes a third bracket body 131 and a second connection leg 132, and the third bracket body 131 has the compressor mounting position 1311 formed thereon; the second connecting leg 132 is connected to the third bracket body 131, the second connecting leg 132 is adapted to be connected to the first connecting leg 122, and a second buffer 15 is disposed between the second connecting leg 132 and the first connecting leg 122.

Since the third bracket 13 connects the compressor with the second bracket 12, the configuration of the third bracket 13 may affect the stability of the connection of the compressor with the subframe assembly 1. The subframe assembly 1 is provided with a compressor mounting position 1311 on the body of the third bracket 13, and the compressor can be fixedly connected with the compressor mounting position 1311 through a fastener or other modes, and the stability of the compressor assembly is improved by the arrangement of the compressor mounting position 1311. Meanwhile, the third bracket 13 is further provided with a second connection leg 132 which can be matched with the first connection leg 122, the second connection leg 132 is connected with the third bracket body 131, when the second bracket 12 is assembled on the auxiliary frame assembly 1, the second connection leg 132 is matched with the first connection leg 122, the second buffer member 15 is arranged between the second connection leg 132 and the first connection leg 122 and fixedly connects the second connection leg 132 with the first connection leg 122, at the moment, the compressor is fixed on the auxiliary frame assembly 1 under the action of the third bracket 13, and vibration generated by the compressor is buffered by the second buffer member 15 when being transmitted to the second bracket 12 through the third bracket 13. The configuration of the third bracket 13 improves the stability of the assembly of the compressor with the subframe assembly 1.

In some embodiments, two bolt holes for installing fasteners may be provided on the compressor installation site 1311, and the compressor is connected to the third bracket 13 by using fasteners such as bolts, so that the structure of the connection is simple and the connection stability is high.

According to an embodiment of the present utility model, the second buffer member 15 includes a connection rod 151 and a flexible member 152, and both ends of the connection rod 151 are fixed to the first connection leg 122 and the second connection leg 132, respectively; the flexible member 152 is disposed on the connecting rod 151 and between the first connecting leg 122 and the second connecting leg 132.

Since the second buffer 15 is disposed between the third bracket 13 and the second bracket 12, the configuration of the second buffer 15 may affect the connection state between the second bracket 12 and the third bracket 13. The subframe assembly 1 is provided with a connecting rod 151 on the second buffer member 15, one end of the connecting rod 151 is connected with the first connecting leg 122, and the other end of the connecting rod 151 is connected with the second connecting leg 132. The flexible piece 152 is arranged on the periphery of the connecting rod 151, when the third bracket 13 is connected with the second bracket 12, the flexible piece 152 is arranged between the first connecting support leg 122 and the second connecting support leg 132, and when vibration transmitted by the compressor received by the third bracket 13 is transmitted towards the second bracket 12, the flexible piece 152 can buffer the vibration by utilizing deformation of the flexible piece 152, so that the vibration transmitted by the third bracket 13 to the second bracket 12 is reduced, and the connection stability of the second bracket 12 and the third bracket 13 is improved.

According to one embodiment of the present utility model, the flexible member 152 is configured in a column shape and the outer circumference of the flexible member 152 is formed with a weakening groove 1521 recessed in a radial direction. Since the flexible member 152 is a structure for cushioning inside the second cushioning member 15, the configuration of the flexible member 152 affects the cushioning performance of the second cushioning member 15. The second buffer member 15 is formed by configuring the flexible member 152 to be columnar, and a weakening groove 1521 recessed inwards in the radial direction is formed in the periphery of the flexible member 152, and the weakening groove 1521 is designed to facilitate deformation and collapse of the flexible member 152, so that the buffer vibration reduction performance of the second buffer member 15 is improved.

According to an embodiment of the present utility model, the first connection leg 122 is disposed obliquely with respect to the second bracket 121, and the second connection leg 132 is disposed obliquely with respect to the third bracket body 131. Since the engagement between the second bracket 12 and the third bracket 13 is achieved by the engagement of the first and second connection legs 122 and 132 and the second buffer 15, the position design of the first and second connection legs 122 and 132 affects the connection between the second bracket 12 and the third bracket 13. The auxiliary frame assembly 1 inclines the first connection support leg 122 relative to the second support 121, meanwhile, the auxiliary frame assembly 1 inclines the second connection support leg 132 relative to the third support body 131, as shown in fig. 4, the direction of the first connection support leg 122 inclined to the second support 121 can be towards the upper direction and away from the second support 121, the direction of the second connection support leg 132 inclined to the third support body 131 can be towards the lower direction and away from the second support 121, the inclined design of the first connection support leg 122 and the second connection support leg 132 enables the first connection support leg 122 and the second connection support leg 132 to be parallel at the matching position, stability during matching is improved, and meanwhile, a gap is reserved between the first connection support leg 122 and the second connection support leg 132 in the inclined design, so that mutual interference between the second support 121 and the second support 121 can be avoided.

According to an embodiment of the present utility model, the first brackets 11 are configured in a plurality of spaced apart sub-frame rails 10, and at least one of the first brackets 11 is formed with a relief notch 113 on at least one side in the longitudinal direction of the sub-frame rail 10. Since first bracket 11 is a structure that connects second bracket 12 to sub-frame rail 10, the configuration of first bracket 11 may affect the stability of the connection of second bracket 12 to sub-frame rail 10. The auxiliary frame longitudinal beam 10 is provided with a plurality of first brackets 11 at intervals in the extending direction of the auxiliary frame longitudinal beam 10, each first bracket 11 is provided with a supporting surface 111 and a first mounting hole 112, and the stability of connection between the second bracket 12 and the auxiliary frame longitudinal beam 10 is improved by the arrangement of the plurality of first brackets 11. In addition, the auxiliary frame assembly 1 is further provided with avoidance notches 113 at two sides of one of the first brackets 11 in the length direction of the auxiliary frame longitudinal beam 10, and when the first brackets 11 are assembled with the auxiliary frame longitudinal beam 10, the avoidance notches 113 can avoid interference of assembly operations of two adjacent first brackets 11, so that the assembly efficiency of a plurality of first brackets 11 is improved.

The vehicle according to the present utility model is briefly described below.

The vehicle according to the present utility model is provided with the sub-frame assembly 1 in the above-described embodiment, and since the vehicle according to the present utility model is provided with the sub-frame assembly 1 in the above-described embodiment, the compressor is integrated with the sub-frame assembly 1 after the compressor is assembled to the sub-frame assembly 1, improving the stability of the assembly of the compressor. Meanwhile, the auxiliary frame assembly 1 buffers vibration transmitted to the auxiliary frame longitudinal beam 10 by the compressor through the buffer parts at two positions of the auxiliary frame assembly, so that vibration feeling transmitted to the inside of a vehicle body is reduced, and driving experience of the vehicle is improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

In the description of the present utility model, "plurality" means two or more.

In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A subframe assembly, comprising:

a subframe rail;

the first bracket is connected with the auxiliary frame longitudinal beam;

the second bracket is connected with the first bracket;

a third bracket connected with the second bracket, provided with a compressor mounting position suitable for being connected with a compressor, wherein

And buffer pieces are arranged between the auxiliary frame longitudinal beam and the first bracket, between the first bracket and the second bracket, between the second bracket and the third bracket and on at least two of the compressor installation positions.

2. The subframe assembly of claim 1 wherein the first bracket has a support surface formed thereon, the support surface having a first mounting hole formed therethrough in a thickness direction, a first buffer being disposed between the first mounting hole and the second bracket.

3. The subframe assembly of claim 2 wherein said second bracket comprises:

the second bracket body is provided with a second mounting hole, and the first buffer piece is arranged between the second mounting hole and the first mounting hole;

the first connecting support leg, first connecting support leg with support body coupling, first connecting support leg with third leg joint, first connecting support leg with be provided with the second bolster between the third support.

4. A subframe assembly according to claim 3, wherein the outer periphery of the first bumper is provided with a snap groove adapted to snap fit with the edge of the second mounting hole.

5. The subframe assembly of claim 3 wherein said third bracket comprises:

the third bracket body is provided with the compressor installation position;

the second is connected the stabilizer blade, the second connect the stabilizer blade with third support body coupling, the second connect the stabilizer blade be suitable for with first connection stabilizer blade is connected, the second connect the stabilizer blade with be provided with the second bolster between the first connection stabilizer blade.

6. The subframe assembly of claim 5, wherein said second cushioning member comprises:

the two ends of the connecting rod are respectively fixed with the first connecting support leg and the second connecting support leg;

the flexible piece is arranged on the connecting rod and between the first connecting support leg and the second connecting support leg.

7. The subframe assembly of claim 6 wherein said flexible member is cylindrically configured and a periphery of said flexible member is formed with a radially inwardly concave weakened channel.

8. The subframe assembly of claim 7 wherein said first connecting leg is disposed obliquely with respect to said second bracket body and said second connecting leg is disposed obliquely with respect to said third bracket body.

9. The subframe assembly of claim 2 wherein said first brackets are configured in a plurality of spaced apart subframe rails, at least one of said first brackets having a relief notch formed in at least one side of said subframe rails in a length direction thereof.

10. A vehicle comprising a subframe assembly as claimed in any one of claims 1 to 9.