CN220640007U - Front auxiliary frame and vehicle - Google Patents

Abstract

The utility model discloses a front auxiliary frame and a vehicle, wherein the front auxiliary frame comprises a middle cross beam and longitudinal beams, two ends of the middle cross beam are respectively connected with the two longitudinal beams, a reference beam section and a deformation beam section are arranged on the longitudinal beams, an avoidance area is arranged on the section of the deformation beam section, and the section size of the deformation beam section is determined based on the section strength of the reference beam section. The front auxiliary frame can achieve the avoidance effect on other structures of the vehicle such as the control arm and the like through the avoidance area, and meanwhile, the section size of the deformed beam section is determined based on the section strength of the reference beam section, so that the deformed beam section can still meet the requirement of the section strength under the condition of being provided with the avoidance area, the problem of local weakness caused by hole avoidance in the traditional structure is avoided, the collision deformation of the front auxiliary frame is favorably controlled, the sharing effect of the collision force of the whole vehicle is better, and the integral strength, rigidity and reliability of the front auxiliary frame are improved.

Description

Front auxiliary frame and vehicle

Technical Field

The utility model relates to the technical field of automobile chassis, in particular to a front auxiliary frame and a vehicle.

Background

Because the front auxiliary frame needs to avoid the power assembly in the cabin, and the overlapping area of the front auxiliary frame and the barrier is increased for sharing the collision force of the whole vehicle, the longitudinal beams arranged on the left side and the right side of the front auxiliary frame need to be designed into a large span, and when the span is large, the longitudinal beams are easy to coincide with the control arms. The front auxiliary frame of the prior art generally provides an installation space for the control arm through partial holes, so that a partial weak position can be formed, and the sharing effect of the front auxiliary frame on the collision force of the whole vehicle is affected.

Disclosure of Invention

In view of the above, the present utility model aims to provide a front subframe and a vehicle, so as to solve the technical problem of poor effect of sharing the collision force of the front subframe on the whole vehicle in the prior art.

The utility model provides a front auxiliary frame which comprises a middle cross beam and longitudinal beams, wherein two ends of the middle cross beam are respectively connected with the two longitudinal beams, a reference beam section and a deformation beam section are arranged on the longitudinal beams, an avoidance area is arranged on the section of the deformation beam section, and the section size of the deformation beam section is determined based on the section strength of the reference beam section.

Further, the deformed beam segment has a cross-sectional strength equal to the cross-sectional strength of the reference beam segment.

Further, the deformation beam section comprises a first beam section, the avoidance area comprises a first area, the longitudinal beam is a hollow beam structure formed by mutually buckling and connecting an upper plate and a lower plate, the height of the first side of the upper plate of the first beam section is larger than that of the upper plate of the reference beam section, the height of the second side of the upper plate of the first beam section is smaller than that of the upper plate of the reference beam section, and the first area is arranged above the second side of the upper plate of the first beam section.

Further, the deformation beam section comprises a second beam section, the avoidance area comprises a second area, the longitudinal beam is a hollow beam structure formed by mutually buckling and connecting an upper plate and a lower plate, the first side of the upper plate of the second beam section is connected with the lower plate of the second beam section in a fitting way and extends towards the outer side direction of a vehicle, the height of the second side of the upper plate of the second beam section is greater than that of the upper plate of the reference beam section, and the second area is arranged above the first side of the upper plate of the second beam section.

Further, the power assembly further comprises a suspension bracket which is arranged on the middle cross beam and is used for connecting with the suspension of the power assembly.

Further, the vehicle body support comprises vehicle body supports, and the two vehicle body supports are symmetrically arranged on the two longitudinal beams respectively and are used for connecting a vehicle body.

Further, the device also comprises control arm supports, wherein the two control arm supports are respectively arranged on the two longitudinal beams and are used for connecting the control arms.

Further, the control arm support comprises a first support and a second support, the two car body supports are symmetrically arranged on the two longitudinal beams respectively, the two first supports are arranged on the two longitudinal beams respectively, and the two second supports are arranged on the two car body supports respectively and are opposite to the first supports.

Further, the front beam and the rear beam are further included, two ends of the front beam are respectively connected with the front ends of the two longitudinal beams, and two ends of the rear beam are respectively connected with the rear ends of the two longitudinal beams.

The utility model also provides a vehicle comprising the front auxiliary frame.

According to the front auxiliary frame, the two longitudinal beams are connected through the middle cross beam, the reference beam section and the deformation beam section are arranged on the longitudinal beams, the avoidance area is arranged on the section of the deformation beam section, the avoidance effect on other structures of the vehicle such as a control arm can be achieved through the avoidance area, meanwhile, the section size of the deformation beam section is determined based on the section strength of the reference beam section, the deformation beam section has a certain section strength with a certain section size under the condition that the avoidance area is arranged, the requirement of the section strength is further met, the problem of local weakness caused by hole avoidance in the traditional structure is avoided, the collision deformation of the front auxiliary frame is favorably controlled, the sharing effect of the whole vehicle collision force is achieved, and the whole strength, the rigidity and the reliability of the front auxiliary frame are improved.

The vehicle of the utility model has all the advantages of the front subframe, and is not described herein.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In the drawings, which are not necessarily drawn to scale, like numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The accompanying drawings illustrate various embodiments by way of example in general and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive of the present apparatus or method. The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of a front subframe according to the present utility model;

fig. 2 is a schematic structural diagram of a front subframe according to the present utility model;

FIG. 3 is a schematic cross-sectional view of the structure at A-A in FIG. 2;

FIG. 4 is a schematic cross-sectional view of the structure at B-B in FIG. 2;

FIG. 5 is a schematic cross-sectional view of the structure at C-C in FIG. 2;

FIG. 6 is a schematic cross-sectional view of the structure at D-D in FIG. 2;

fig. 7 is an enlarged schematic view of the structure of the vehicle body bracket and the control arm bracket provided by the present utility model.

Wherein the above figures include the following reference numerals:

1. a middle cross beam; 2. a longitudinal beam; 201. an upper plate; 202. a lower plate; 203. a first region; 204. a second region; 21. a reference beam section; 22. a deformed beam section; 221. a first beam section; 222. a second beam section; 3. a front cross member; 4. a rear cross member; 5. a control arm support; 51. a first bracket; 52. a second bracket; 6. a suspension bracket; 7. a vehicle body bracket; 8. reinforcing plate.

Detailed Description

Hereinafter, specific embodiments of the present utility model will be described in detail with reference to the accompanying drawings, but not limiting the utility model.

It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of the utility model will occur to persons of ordinary skill in the art.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and, together with a general description of the utility model given above, and the detailed description of the embodiments given below, serve to explain the principles of the utility model.

These and other characteristics of the utility model will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.

It is also to be understood that, although the utility model has been described with reference to some specific examples, a person skilled in the art will certainly be able to achieve many other equivalent forms of the utility model, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present utility model will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the utility model, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the utility model in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present utility model in virtually any appropriately detailed structure.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the utility model.

The embodiment of the utility model provides a front auxiliary frame, which comprises a middle cross beam 1 and longitudinal beams 2, wherein two ends of the middle cross beam 1 are respectively connected with the two longitudinal beams 2, a reference beam section 21 and a deformation beam section 22 are arranged on the longitudinal beams 2, an avoidance area is arranged on the section of the deformation beam section 22, and the section size of the deformation beam section 22 is determined based on the section strength of the reference beam section 21.

As shown in fig. 1 and fig. 2, two ends of the middle cross beam 1 along the positive and negative directions of the X axis in the drawing are respectively connected with the middle parts of the two longitudinal beams 2, the longitudinal beams 2 are provided with a reference beam section 21 and a deformed beam section 22, the section of the deformed beam section 22 has a certain shape change relative to the section of the reference beam section 21, so that an avoidance area is formed, the section size of the deformed beam section 22 is determined based on the section strength of the reference beam section 21, when the section strength of the reference beam section 21 is higher, the deformed beam section 22 needs to have an avoidance effect while the section strength corresponding to the reference beam section 21 is ensured by the change of the section size (namely, the section strengths of the two sections are similar or completely equal), and modes such as increasing the height size of certain parts of the deformed beam section 22 can be adopted.

It should be understood that the arrangement sequence of the reference beam section 21 and the deformation beam section 22 on the longitudinal beam 2 is not fixed, and the corresponding design can be performed in consideration of the position and structure of the actual avoidance object.

One example of the reference beam section 21 is shown in fig. 4, and a hollow beam structure is formed by buckling and welding an upper plate 201 and a lower plate 202 with each other, and has a rectangular or square cross-sectional shape and a height H as shown in fig. 4 _b And L _b One example of the deformed beam section 22 is a first beam section 221, as shown in fig. 3, in which the first beam section 221 is formed by buckling and welding an upper plate 201 and a lower plate 202 with each other to form a hollow beam structure, and one example of the avoidance region is a first region 203 formed by bending the upper plate 201, as shown in fig. 3, in which a first side (i.e., a side corresponding to the X-axis opposite direction of the first beam section 221 in fig. 2) has a height H _a The second side (i.e., the side corresponding to the positive X-axis direction of the first beam section 221 in FIG. 2) has a height H _a1 Width is L _a H due to the arrangement of the first region 203 _a1 Less than H _b I.e. the cross-sectional dimensions comprise the height and width of the cross-section, the cross-sectional dimensions of the first beam section 221 of the deformed beam section 22 are determined based on the strength of the reference beam section 21, here will be exemplified by H _a Increase to greater than H _b To ensure that the cross-sectional strength of the reference beam section 21 is close to or equal to the cross-sectional strength of the deformed beam section 22.

According to the front auxiliary frame, the two longitudinal beams 2 are connected through the middle cross beam 1, the reference beam section 21 and the deformation beam section 22 are arranged on the longitudinal beams 2, the avoidance area is arranged on the section of the deformation beam section 22, the avoidance effect on other structures of the vehicle such as a control arm can be achieved through the avoidance area, meanwhile, the section size of the deformation beam section 22 is determined based on the section strength of the reference beam section 21, the deformation beam section 22 has a certain section strength with a certain section size under the condition of being provided with the avoidance area, the requirement of the section strength is further met, the problem of local weakness caused by hole avoidance in the traditional structure is avoided, the collision deformation of the front auxiliary frame is favorably controlled, the better whole vehicle collision force sharing effect is achieved, and the whole strength, rigidity and reliability of the front auxiliary frame are improved.

Preferably, as shown in fig. 1 and 2, the front cross member 3 and the rear cross member 4 are further included, two ends of the front cross member 3 are respectively connected with front ends of the two longitudinal beams 2, and two ends of the rear cross member 4 are respectively connected with rear ends of the two longitudinal beams 2.

The front end refers to one end of the longitudinal beam 2 shown in the figure along the positive direction of the Y axis, the rear end refers to one end of the longitudinal beam 2 shown in the figure along the negative direction of the Y axis, the two ends of the front cross beam 3 are welded with the front ends of the two longitudinal beams 2, the two ends of the rear cross beam 4 are welded with the rear ends of the two longitudinal beams 2, so that the force transmission effect between the two longitudinal beams 2 can be better realized, and the sharing effect of the collision force of the whole vehicle is further improved.

Still further, as shown in fig. 1 and 2, the rear cross member 4, the middle cross member 1 and the two longitudinal beams 2 are connected to form a square frame structure, a reinforcing plate 8 is arranged in the square frame, the periphery of the reinforcing plate 8 is welded with the rear cross member 4, the middle cross member 1 and the two longitudinal beams 2 correspondingly, so as to achieve better connection and reinforcement effects, and weight reducing holes are optionally formed in the reinforcing plate 8 so as to control the weight of the whole vehicle.

Further, the cross-sectional strength of the deformed beam segment 22 is equal to the cross-sectional strength of the reference beam segment 21. The section strength of the deformed beam section 22 is consistent with that of the reference beam section 21, so that the deformed beam section 22 provided with the avoidance area can still maintain relatively consistent structural strength, local weak points are avoided, the control of the collision deformation of the front auxiliary frame is facilitated, and the effect of sharing the collision force of the whole vehicle is better.

Further, the deformation beam section 22 includes a first beam section 221, the avoidance area includes a first area 203, the longitudinal beam 2 is a hollow beam structure formed by mutually fastening and connecting an upper plate 201 and a lower plate 202, the height of a first side of the upper plate 201 of the first beam section 221 is greater than that of the upper plate 201 of the reference beam section 21, the height of a second side of the upper plate 201 of the first beam section 221 is less than that of the upper plate 201 of the reference beam section 21, and the first area 203 is disposed above the second side of the upper plate 201 of the first beam section 221.

Referring to fig. 2, 3 and 4, the longitudinal beam 2 is a hollow beam structure formed by mutually fastening and connecting an upper plate 201 and a lower plate 202, wherein the upper plate 201 and the lower plate 202 of the reference beam section 21 are fastened and welded to form a rectangular cross-sectional shape, and the cross-sectional dimension thereof comprises the height H of the upper plate 201 of the reference beam section 21 _b Width L _b The cross-sectional dimensions of the first beam section 221 include the height H of the first side of the upper plate 201 of the first beam section 221 (i.e., the side corresponding to the opposite X-axis of the first beam section 221 in FIG. 2) _a And a width L of the first beam segment 221 as indicated in the figure _a Wherein H is _a Greater than H _b The cross-sectional dimensions also include the height H of the second side of the upper plate 201 of the first beam section 221 (i.e., the side corresponding to the positive X-axis direction of the first beam section 221 in FIG. 2) _a1 Wherein H is _a1 Less than H _b The first region 203 of the relief region is located above the second side of the upper plate 201 of the first beam section 221, the width L of the first beam section 221 as indicated in the figure _a And the width L of the reference beam section 21 as indicated in the figure _b Is usually similar, but is influenced by the specific shape of the avoidance object, L _a And L is equal to _b The relationship between these is not fixed and should be determined based on specific cross-sectional strength requirements.

In this way, the heights of the first side and the second side of the upper plate 201 of the first beam section 221 are changed based on the height of the reference beam section 21, so that the first region 203 is formed, the section strength of the first beam section 221 can be kept equal to the section strength of the reference beam section 21, local weak points are avoided, and a better whole car collision force sharing effect is realized.

Further, the deformation beam section 22 includes a second beam section 222, the avoidance area includes a second area 204, the longitudinal beam 2 is a hollow beam structure formed by mutually fastening and connecting an upper plate 201 and a lower plate 202, a first side of the upper plate 201 of the second beam section 222 is attached to and connected with the lower plate 202 of the second beam section 222 and extends towards the outer side direction of the vehicle, a second side of the upper plate 201 of the second beam section 222 is higher than the upper plate 201 of the reference beam section 21, and the second area 204 is arranged above the first side of the upper plate 201 of the second beam section 222.

Referring to fig. 2, 4 and 5, the longitudinal beam 2 is a hollow beam structure formed by mutually fastening and connecting an upper plate 201 and a lower plate 202, wherein the upper plate 201 and the lower plate 202 of the reference beam section 21 are fastened and welded to form a rectangular cross-sectional shape, and the upper plate 201 has a height H _b Width L _b The upper plate 201 of the second beam section 222 has a first side (i.e., the side corresponding to the X-axis reverse direction of the second beam section 222 in fig. 2) that is bonded to the lower plate 202 of the second beam section 222 and extends in the vehicle-outside direction (the vehicle-outside direction corresponds to the side of the left side member 2 in fig. 2 that faces the X-axis reverse direction, and when the vehicle outside is described based on the right side member 2 in fig. 2, it means the right side member 2 faces the X-axis forward direction), and the cross-sectional dimension of the second beam section 222 includes the height H of the second side (i.e., the side corresponding to the X-axis forward direction of the second beam section 222) of the upper plate 201 of the second beam section 222 _c The portion width L of the upper plate 201 first side of the second beam section 222 shown in the figure in abutting engagement with the lower plate 202 _c1 And the second side of the upper plate 201 of the second beam section 222 forms a cavity portion width L with the lower plate 202 _c Wherein H is _c Greater than H _b The second region 204 of the avoidance region is located above the first side of the upper plate 201 of the second beam section 222, the part of the cross-sectional force of the first side of the upper plate 201 of the second beam section 222, which is in abutting connection with the lower plate 202, is lost, while the second side of the upper plate 201 of the second beam section 222 and the lower plate 202 form a cavity, which has relatively higher cross-sectional strength, L _b Greater than L _c Based on the greater width of the reference beam section 21, the second side height H of the upper plate 201 of the second beam section 222 needs to be set _c Set to be greater than H _b So that the cross-sectional strength of the reference beam section 21 corresponds to the cross-sectional strength of the second beam section 222, the second region 204 is located above the first side of the upper plate 201 of the second beam section 222.

In this way, the heights of the first side and the second side of the upper plate 201 of the second beam section 222 are changed based on the height of the reference beam section 21, so that the second region 204 is formed, and meanwhile, the section strength of the second beam section 222 is kept equal to that of the reference beam section 21, the generation of local weak points is avoided, and the better whole car collision force sharing effect is realized.

It should be noted that, the positions of the first beam section 221, the second beam section 222, and the reference beam section 21 on the longitudinal beam 2 need to be designed according to the position of the avoidance object, for example, the control arm, etc., and the avoidance effect may not be achieved just as described in the above embodiment, for example, the reference beam section 21 may be disposed at a position closer to the front end of the longitudinal beam 2, and the first beam section 221 and the second beam section 222 may be disposed after the reference beam section 21, using a structure different from that shown in fig. 2.

Further, as shown in fig. 1 and 2, the vehicle further comprises a suspension bracket 6, wherein the suspension bracket 6 is arranged on the middle cross beam 1 and can be connected with the suspension of the power assembly, so that the front auxiliary frame is connected with the suspension of the power assembly.

Further, as shown in fig. 1 and 2, the vehicle body support device further comprises a vehicle body support 7, wherein the two vehicle body supports 7 are symmetrically arranged on the two longitudinal beams 2 respectively, and mounting holes are formed in the vehicle body support 7 to be connected with a vehicle body in a mounting mode.

Further, as shown in fig. 1 and fig. 2, the device further comprises a control arm support 5, wherein two control arm supports 5 are respectively arranged on the two longitudinal beams 2, and mounting holes are formed in the control arm supports 5 to connect the control arms.

Further, the control arm support 5 includes a first support 51 and a second support 52, the two vehicle body supports 7 are symmetrically disposed on the two longitudinal beams 2, the two first supports 51 are disposed on the two longitudinal beams 2, and the two second supports 52 are disposed on the two vehicle body supports 7 and are disposed opposite to the first supports 51.

As shown in fig. 1, 2, 6 and 7, the first bracket 51 is welded on the longitudinal beam 2, and the second bracket 52 is integrally connected with the vehicle body bracket 7, that is, the vehicle body bracket 7 and the second bracket 52 integrally form a bracket main body, and a vehicle body mounting hole for mounting a vehicle body and a control arm mounting hole for mounting a control arm are correspondingly formed in the bracket main body.

In this way, the control arm support 5 and the vehicle body support 7 are integrated into a whole, so that the number of parts is reduced, the manufacturing cost is reduced, meanwhile, the load of the control arm can be transmitted to the vehicle body through the vehicle body support 7, the force transmission path of the load is simplified, and the strength, the rigidity and the reliability of the front auxiliary frame are improved.

The utility model also provides a vehicle comprising the front auxiliary frame.

According to the front auxiliary frame, the two longitudinal beams 2 are connected through the middle cross beam 1, the datum beam section 21 and the deformation beam section 22 are arranged on the longitudinal beams 2, the avoidance area is arranged on the section of the deformation beam section 22, the avoidance effect on other structures of the vehicle such as a control arm can be achieved through the avoidance area, meanwhile, the section size of the deformation beam section 22 is determined based on the section strength of the datum beam section 21, the deformation beam section 22 has a certain section strength with a certain section size under the condition that the avoidance area is arranged, the requirement of the section strength is further met, the problem of local weakness caused by hole avoidance in the traditional structure is avoided, the collision deformation of the front auxiliary frame is favorably controlled, the sharing effect of the whole collision force of the whole vehicle is achieved, and the integral strength, rigidity and reliability of the front auxiliary frame are improved.

In the foregoing embodiments of the present utility model, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described in general terms in the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the utility model.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The front auxiliary frame is characterized by comprising a middle cross beam and longitudinal beams, wherein two ends of the middle cross beam are respectively connected with the two longitudinal beams, a reference beam section and a deformation beam section are arranged on the longitudinal beams, an avoidance area is arranged on the section of the deformation beam section, and the section size of the deformation beam section is determined based on the section strength of the reference beam section.

2. The front subframe of claim 1 wherein the cross-sectional strength of the deformed beam segment and the cross-sectional strength of the reference beam segment are equal.

3. The front subframe of claim 1 wherein the deformation beam section comprises a first beam section, the relieved area comprises a first area, the longitudinal beam is a hollow beam structure formed by mutually snap-fit connection of an upper plate and a lower plate, the height of the first side of the upper plate of the first beam section is greater than the height of the upper plate of the reference beam section, the height of the second side of the upper plate of the first beam section is less than the height of the upper plate of the reference beam section, and the first area is disposed above the second side of the upper plate of the first beam section.

4. The front subframe according to claim 1, wherein the deformation beam section comprises a second beam section, the avoidance region comprises a second region, the longitudinal beam is a hollow beam structure formed by mutually buckling and connecting an upper plate and a lower plate, a first side of the upper plate of the second beam section is in fit connection with the lower plate of the second beam section and extends towards the outer side direction of the vehicle, the height of a second side of the upper plate of the second beam section is greater than that of the upper plate of the reference beam section, and the second region is arranged above the first side of the upper plate of the second beam section.

5. The front subframe of claim 1 further comprising a suspension bracket disposed on the center cross member for coupling to a suspension of a powertrain.

6. The front subframe of claim 1 further comprising body brackets symmetrically disposed on each of said stringers and adapted to connect to a vehicle body.

7. The front subframe of claim 1 further comprising control arm brackets, each of said control arm brackets being disposed on each of said stringers and adapted to connect control arms.

8. The front subframe of claim 7 wherein said control arm support comprises a first support and a second support, said two body supports being symmetrically disposed on said two stringers, respectively, said two first supports being disposed on said two stringers, respectively, said two second supports being disposed on said two body supports, respectively, and disposed opposite said first supports.

9. The front subframe of claim 1 further comprising a front cross member and a rear cross member, wherein the front cross member is connected at each end to the front ends of the two side members, and the rear cross member is connected at each end to the rear ends of the two side members.

10. A vehicle comprising a front subframe according to any one of claims 1 to 9.