CN221138313U - Vehicle body side structure and vehicle - Google Patents

Abstract

The utility model provides a side body structure of a vehicle and a vehicle, wherein the side body structure of the vehicle comprises a side body beam and a reinforcing bracket arranged at the bottom and/or the top of the side body beam; the reinforcing support is internally provided with a plurality of energy absorption cavities, and a plurality of energy absorption cavities are sequentially arranged in the reinforcing support along the left-right direction of the whole vehicle. According to the vehicle side part structure, the reinforcing support is arranged, and the plurality of energy absorption cavities are formed in the reinforcing support, so that the rigidity of the vehicle side part can be increased, the collision force transmission capacity of the vehicle side part is improved, and the vehicle side collision safety is improved.

Description

Vehicle body side structure and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a vehicle body side part structure. The utility model also relates to a vehicle provided with the vehicle body side part structure.

Background

In a vehicle body, as for a rocker beam, which is provided separately on, for example, left and right sides of a underbody, not only plays a role of supporting a side wall and a front floor cross member and connecting a front cabin and a rear floor as an important beam structure of the underbody, but also plays an important role as a main collision force absorbing and transmitting structure for the rocker beam when a side collision occurs in a vehicle, and has an important influence on the safety of the side collision of the whole vehicle.

However, in the present stage, a threshold beam is still taken as an example, and a body side beam in a vehicle body mostly adopts a simple sheet metal welded beam body structure, so that the structure has a large weight on one hand, is unfavorable for the weight reduction of the vehicle body, and has the defects of low collision force absorption and transmission capability and the like on the other hand when the vehicle is in a side collision, thereby being unfavorable for the improvement of the side collision safety of the vehicle.

Disclosure of utility model

In view of this, the present utility model aims to propose a vehicle body side portion structure to help promote vehicle side impact safety.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

A vehicle body side structure includes a vehicle body side rail, and a reinforcing bracket provided at a bottom and/or a top of the vehicle body side rail;

The reinforcing support is internally provided with a plurality of energy absorption cavities, and a plurality of energy absorption cavities are sequentially arranged in the reinforcing support along the left-right direction of the whole vehicle.

Further, the body side beam is provided with an outer wall and an inner wall which are oppositely arranged in the left-right direction of the whole vehicle, and the outer wall is positioned at one side of the body side beam, which is close to the outside of the vehicle, and the inner wall is positioned at one side of the body side beam, which is close to the inside of the vehicle;

The reinforcing support is provided with an outer side portion located on one side, facing the outside of the vehicle, of the outer wall, the energy absorbing cavities comprise first cavities located inside the outer side portion, and the outer side portion is abutted against the outer side face of the outer wall.

Further, a first connecting structure for fixedly connecting the outer side part and the vehicle body side beam is arranged between the outer side part and the vehicle body side beam;

The first connecting structure adopts a screw structure arranged along the left-right direction of the whole vehicle; and/or the first connecting structure is a plurality of arranged at intervals.

Further, the reinforcing bracket is provided with an inner side part positioned between the outer wall and the inner wall, the plurality of energy absorbing cavities comprise a second cavity and a third cavity which are separated from each other in the inner side part, and a second connecting structure for fixedly connecting the inner side part and the side beam of the vehicle body is arranged between the inner side part and the side beam of the vehicle body.

Further, the second connection structure adopts a screw structure arranged along the up-down direction of the whole vehicle, and the second connection structure is positioned between the second cavity and the third cavity.

Further, a convex portion is provided on a side of the inner side portion adjacent to the inner wall, and an inside of the convex portion is hollow and forms a part of the third cavity.

Further, the reinforcing bracket adopts a self-welding structure made of plates;

Wherein, one side of panel is buckled and is welded from the closure and form first cavity, the opposite side shaping of panel has the arch, just the opposite side of panel is buckled and is welded from the closure, by the arch separation second cavity with the third cavity.

Further, the reinforcing bracket forms an arrangement space for arranging the pipeline in the vehicle body side beam.

Further, the side beam of the automobile body adopts an extruded aluminum profile; and/or the number of the groups of groups,

The automobile body boundary beam is the threshold roof beam, the reinforcing bracket sets up the bottom of automobile body boundary beam, just the reinforcing bracket is followed the length direction interval setting of automobile body boundary beam a plurality of.

Compared with the prior art, the utility model has the following advantages:

According to the side part structure of the vehicle body, the reinforcing support is arranged, the plurality of energy absorption cavities are formed in the reinforcing support, so that the structural strength of the side beam position of the vehicle body can be increased by using the reinforcing support with the cavities, the transmission capacity of the side beam of the vehicle to the side collision force of the vehicle is increased, and meanwhile, the side collision force of the vehicle body can be absorbed step by using the plurality of energy absorption cavities which are sequentially arranged in the reinforcing support, so that the rigidity of the side part of the vehicle body can be increased, the absorption and transmission effects of the collision force during the side collision of the vehicle can be improved, and the side collision safety of the vehicle body can be improved.

In addition, the reinforcing support is provided with an outer side part, a first cavity is formed in the outer side part, the outer side part is abutted against the outer wall, the outer side part can be made to be a first-stage energy absorption area in the reinforcing support, and meanwhile, when a side collision occurs, the vehicle body side beam is used for supporting the outer side part, so that the energy absorption effect of the outer side part is improved. The outside part is in the same place with the automobile body boundary beam fixedly through first connection structure, can realize the fixed setting of reinforcing bracket on the automobile body boundary beam, also can guarantee the stability that reinforcing bracket set up on the automobile body boundary beam.

Secondly, the first connection structure adopts the bolt structure that arranges along the left and right directions of whole car, simple structure, the connection operation of first connection structure of also can being convenient for. The first connecting structure is arranged in a plurality of the first connecting structures which are arranged at intervals, so that the reliability of connection between the outer side part and the side beam of the vehicle body can be improved, and the stability of the first cavity in the outer side part can be enhanced. The reinforcing bracket is provided with an inner side part, the second cavity and the third cavity are formed in the inner side part, the inner side part can form a multi-stage energy absorption effect, the inner side part is connected with the automobile body side beam through a second connecting structure, and the fixed arrangement of the reinforcing bracket on the automobile body side beam can be realized.

Furthermore, the second connection structure adopts a screw connection structure arranged along the up-down direction of the whole vehicle, so that the structure is simple, and the connection operation of the second connection structure can be facilitated. The second connecting structure is positioned between the second cavity and the third cavity, so that the second connecting structure can be used as a supporting stress point on the inner side of the second cavity when the side collision occurs, and the energy absorption effect of the position of the second cavity can be ensured. Through setting up the bulge in the one side that the inboard part is close to the inner wall, and make the inside of bulge be the part of third cavity, can make the inner wall of automobile body boundary beam regard as the inboard support stress point of third cavity when the side bumps, also can guarantee the energy-absorbing effect of third cavity position. The self-welding structure of the reinforcing support made of the plates can reduce the preparation cost of the reinforcing support and also can ensure the structural strength of the reinforcing support.

In addition, the reinforcing support is arranged in the vehicle body side beam in a surrounding mode, pipelines in the vehicle can be arranged in the vehicle body side beam space by fully utilizing the vehicle body side beam space, meanwhile, the characteristic that the surrounding arranged space is a cavity structure can be utilized, and the overall strength of the vehicle body side beam position is improved. The automobile body boundary beam adopts the extrusion aluminium alloy, can do benefit to the preparation of automobile body boundary beam, also can be when guaranteeing automobile body boundary beam structural strength, does benefit to the lightweight design of automobile body boundary beam. The car body side beam is a threshold beam, so that the space of the threshold beam can be fully utilized for pipeline arrangement, and the rigidity and the collision force transmission capacity of the position of the threshold beam can be increased. The reinforcing brackets are arranged at intervals, so that the weight of the side beam of the automobile body can be reduced while the setting effect of the reinforcing brackets is met, and the light weight design of the automobile body can be realized.

Another object of the present utility model is to propose a vehicle in which the body side structure as described above is provided in the body.

The vehicle of the utility model has the same beneficial effects as the vehicle side part structure, and is not repeated here.

Drawings

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 specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a side body structure according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the position A-A of FIG. 1;

FIG. 3 is a schematic structural view of a reinforcing bracket according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a reinforcing brace according to an embodiment of the present utility model;

Reference numerals illustrate:

1. A body side rail; 2. reinforcing side beams; 3. a vehicle body cross member; 4. a first connection structure; 5. a second connection structure;

1a, an outer wall; 1b, inner wall; 201. an outer portion; 202. an inner portion; 2021. a protruding portion; 2022. a protrusion; 2a, a first cavity; 2b, a second cavity; 2c, a third cavity; 401. a first bolt; 501. a threaded sleeve; 502. a second bolt;

s, welding spots; q, arrangement space.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

The present embodiment relates to a vehicle body side portion structure that includes, in an overall structure as shown in fig. 1 and 2, a body side member 1, and a reinforcing bracket 2 provided at a bottom portion of the body side member 1.

The reinforcing bracket 2 is also internally provided with a plurality of energy-absorbing cavities, and the plurality of energy-absorbing cavities are also sequentially arranged in the reinforcing bracket 2 along the left-right direction of the whole vehicle.

At this time, through setting up as above, through setting up reinforcing bracket 2 to make and form a plurality of energy-absorbing cavity in the reinforcing bracket 2, this embodiment can utilize reinforcing bracket 2 that has the cavity to increase the bulk strength of automobile body boundary beam 1 position on the one hand, on the other hand, also can utilize a plurality of energy-absorbing cavities that set gradually in the reinforcing bracket 2 to bump collision force and carry out the energy-absorbing step by step, and then can reach the rigidity that increases the automobile body lateral part, and improve the effect that automobile body lateral part bumps energy-absorbing and power transmission ability.

Based on the above overall description, in particular, as a preferred embodiment, the arrangement space Q for arranging the pipeline can be formed in the body side rail 1 by the arrangement of the reinforcing bracket 2, for example, by the reinforcing bracket 2. Therefore, the reinforcing bracket 2 encloses the arrangement space Q in the body side beam 1, so that pipelines in the vehicle can be arranged by fully utilizing the space of the body side beam 1, and meanwhile, the enclosed arrangement space Q is also characterized by being a cavity structure, thereby being beneficial to increasing the overall strength of the position of the body side beam 1.

It is noted that the above-mentioned lines, i.e. the lines in the vehicle for transporting the relevant fluids, and the wiring harness for transmitting electrical energy or electrical signals. Further, in addition to the reinforcement bracket 2 being provided at the bottom of the body side rail 1 as described above, it is of course possible to provide the reinforcement bracket 2 at the top of the body side rail 1 in the case where the arrangement requirement is satisfied, and the concrete arrangement form thereof is still as described in relation to the present embodiment when the reinforcement bracket 2 is located at the top of the body side rail 1.

In the vehicle body of the vehicle, the body side member 1 may be, for example, a side sill member of a vehicle body side portion, and the reinforcing bracket 2 may be provided at the bottom of the side sill member, and in a specific embodiment, the reinforcing bracket 2 may be provided only at one side of the side sill member, or the reinforcing brackets 2 may be provided at both side sill members, depending on the necessity, on the basis that two side sill members are generally provided in the vehicle body.

It is to be understood that, in the vehicle body, the body side sill 1 is made a rocker, which enables piping to be performed by making full use of the rocker space, and also increases the rigidity of the rocker position and the collision force transmitting capability. However, it should be noted that, in addition to being a rocker, of course, other rocker structures that make the body side rail 1 of the present embodiment a vehicle line arrangement possible are also possible.

In this embodiment, in the concrete implementation, for example, a conventional sheet metal welded beam structure may be used as the body side rail 1 of this embodiment, and for example, an extruded aluminum profile may be used as the body side rail 1 of this embodiment as a preferred embodiment. Like this for automobile body boundary beam 1 adopts the extrusion aluminium alloy, compares in the sheet metal seam roof beam body, can do benefit to the preparation of automobile body boundary beam 1 to also can be when guaranteeing automobile body boundary beam 1 structural strength, do benefit to the lightweight design of automobile body boundary beam 1.

With continued reference to fig. 2, in the present embodiment, in terms of structure, as a preferred embodiment, the body side member 1 has an outer wall 1a and an inner wall 1b that are arranged opposite to each other in the left-right direction of the entire vehicle, and in the left-right direction of the entire vehicle, the outer wall 1a is located on the side of the body side member 1 that is located outside the vehicle, and the inner wall 1b is located on the side of the body side member 1 that is located inside the vehicle. At the same time, the reinforcing bracket 2 of the present embodiment also has an outer portion 201 located on the side of the outer wall 1a facing the outside of the vehicle, and the plurality of energy absorbing cavities includes a first cavity 2a located inside the outer portion 201, and the outer portion 201 abuts against the outer side face of the outer wall 1 a.

At this time, the reinforcing bracket 2 is provided with the outer portion 201, the first cavity 2a is formed in the outer portion 201, and the outer portion 201 is abutted against the outer wall, and it can be understood that the outer portion 201 can be made to be a first-stage energy absorption area in the reinforcing bracket 2, and at the same time, the energy absorption effect of the outer portion 201 can be improved by using the support of the body side sill 1 to the outer portion 201 in side collision.

Still from fig. 1, and with continued reference to fig. 3, the present embodiment is based on the above-described arrangement of the outer side portion 201, and as a preferred embodiment, a first connecting structure 4 for fixedly connecting the outer side portion 201 of the reinforcing bracket 2 and the body side rail 1 is also provided between them. Thus, by fixedly connecting the outer portion 201 with the body side rail 1 through the first connecting structure 4, not only can the fixed arrangement of the reinforcing bracket 2 on the body side rail 1 be achieved, but also the stability of the arrangement of the reinforcing bracket 2 on the body side rail 1 can be ensured.

In this embodiment, the first connection structure 4 may be, for example, a screw structure provided in the left-right direction of the entire vehicle. In this way, the first connecting structure 4 adopts the bolt structure arranged along the left-right direction of the whole vehicle, so that the structure is simple, and the connecting operation of the first connecting structure 4 can be facilitated.

In particular, the first connecting structure 4 may be constituted by, for example, a first bolt 401 penetrating the outer portion 201 of the reinforcing bracket 2 and a screw hole, not shown, provided in the side sill 1. Of course, the above-mentioned threaded connection hole may be directly formed on the body side rail 1, or a structure such as a nut plate with a threaded hole, a projection nut, etc. may be provided on the body side rail 1, and when the nut plate or the projection nut is provided, a connection via hole is provided on the body side rail 1 corresponding to the threaded hole to satisfy the connection requirement of the first bolt 401.

It should be noted that, in addition to the connection of the outer portion 201 to the body side rail 1 by the first connection structure 4, the first connection structure 4 may be a plurality of first connection structures arranged at intervals. At this time, the plurality of first connecting structures 4 may be arranged at intervals in the entire vehicle front-rear direction as shown in fig. 1, for example, and it is understood that by providing the first connecting structures 4 in a plurality of arranged at intervals, it is possible not only to increase the reliability of the connection between the outside portion 201 and the body side rail 1, but also to strengthen the stability of the first cavity 2a in the outside portion 201, while being able to improve the energy absorbing effect of the outside portion 201.

In this embodiment, as shown in fig. 2 and 3, in addition to the outer portion 201, the reinforcing bracket 2 of this embodiment also has an inner portion 202 located between the outer wall 1a and the inner wall 1 b. Moreover, when the inner side portion 202 is provided, the plurality of energy absorbing cavities further comprise a second cavity 2b and a third cavity 2c which are separated inside the inner side portion 202, and a second connecting structure 5 for fixedly connecting the inner side portion 202 and the body side rail 1 is arranged between the inner side portion 202 and the body side rail 1.

It will be appreciated that the reinforcement bracket 2 is made to have the above-described inner side portion 202, and the second cavity 2b and the third cavity 2c are formed in the inner side portion 202, and the present embodiment is obviously able to utilize the second cavity 2b and the third cavity 2c arranged in order in the right-left direction of the entire vehicle, so that the inner side portion 202 of the reinforcement bracket 2 forms a multi-stage energy absorbing effect. At the same time, by connecting the inner part 202 to the body side rail 1 via the second connection 5, it is possible to fix the reinforcing brace 2 to the body side rail 1.

In this embodiment, as a preferred implementation manner, the second connection structure 5 may be, for example, a screw structure disposed along the up-down direction of the whole vehicle, so that the second connection structure 5 is a screw structure disposed along the up-down direction of the whole vehicle, which is also preferred to have a simple structure, and may facilitate the connection operation of the second connection structure 5.

In particular, the second connection structure 5 may be, for example, a threaded sleeve 501 provided in the body side rail 1, and a second bolt 502 connected to the threaded sleeve 501, and the second bolt 502 may be screwed into the threaded sleeve 501 after passing through a through hole provided in the inner portion 202.

In addition, in this embodiment, as a preferred embodiment, the second connection structure 5 may be located between the second cavity 2b and the third cavity 2c in a specific arrangement. At this time, the second connection structure 5 is disposed between the second cavity 2b and the third cavity 2c, so that the second connection structure 5 can be used as a supporting stress point on the inner side of the second cavity 2b during side collision, thereby ensuring the energy absorbing effect of the second cavity 2 b.

As further shown in fig. 2 and 3, the present embodiment is a preferred embodiment, in which the side of the inner portion 202 near the inner wall 1b also has an upwardly convex protrusion 2021, and the inside of the protrusion 2021 is hollow and forms a part of the third cavity 2 c. At this time, it can be understood that by providing the protruding portion 2021 on the side of the inner portion 202 near the inner wall 1b, and making the inside of the protruding portion 2021 part of the third cavity 2c, the inner wall 1b of the body side rail 1 can be made to act as a supporting stress point on the inside of the third cavity 2c at the time of side collision, so that the energy absorbing effect at the position of the third cavity 2c can be ensured as well.

In connection with the embodiment shown in fig. 4, as a possible implementation manner, the reinforcing bracket 2 may be, for example, a self-welding structure made of a plate material, so that the reinforcing bracket 2 may be made of a plate material, thereby reducing the manufacturing cost of the reinforcing bracket 2 and ensuring the structural strength of the reinforcing bracket 2 itself.

When the reinforcing bracket 2 with a self-welding structure is manufactured from a plate material, the plate material may be bent by stamping or rolling, and one side of the plate material, that is, the left side thereof, is bent to form the first cavity 2a after self-closing welding, based on the direction shown in fig. 4. The other side of the plate, i.e. the right side thereof, is formed with a protrusion 2022, and after the right side of the plate is bent and welded by self-closing, the second cavity 2b and the third cavity 2c can be separated by the protrusion 2022. When the left and right sides of the plate are welded after being self-closed, the welding points involved can be shown as reference number s in fig. 4.

It is noted that the reinforcing bracket 2 of the present embodiment may be manufactured in other ways besides the self-welding structure made of a plate material as described above, and it is possible to make the reinforcing bracket 2 of an extruded aluminum structure, for example.

In this embodiment, it should be noted that, in the specific implementation, for example, one reinforcement bracket 2 may be provided on the body side rail 1, and when a single reinforcement bracket 2 is provided, the reinforcement bracket 2 may also have a larger length in the left-right direction of the whole vehicle, so as to better participate in side impact energy absorption and collision force transmission.

However, as compared with the case where only one reinforcing bracket 2 is provided, it is preferable that, also in the case where the body side rail 1 is a rocker, the reinforcing brackets 2 are provided in plural at intervals along the longitudinal direction of the body side rail 1 as shown in fig. 1, and in a specific arrangement, the respective reinforcing brackets 2 are also arranged in the critical areas of the body side rail 1, respectively.

At this time, the above-mentioned critical area is generally a position where the body side rail 1 is easily brought into contact with the barrier at the time of a side collision of the vehicle, and it is generally a middle area of the body side rail 1, and an area of the body side rail 1 near both ends. And through setting up reinforcing bracket 2 to a plurality of interval arrangement, obviously it can be when satisfying reinforcing bracket 2 setting effect, helps the weight-reducing of automobile body boundary beam 1 position, is favorable to realizing the lightweight design of automobile body.

In addition, when the reinforcing brackets 2 are provided in a plurality of spaced arrangement, it is noted that, for the pipeline provided in the arrangement space Q, in addition to supporting and fixing the pipeline by the reinforcing brackets 2, corresponding fixing structures may be provided at other positions on the body side rail 1 as required, of course, to satisfy the fixing requirements of the pipeline.

According to the vehicle body side part structure, the structure is adopted, and the reinforcing support 2 is arranged on the vehicle body side beam 1, so that the reinforcing support 2 forms an arrangement space Q in the vehicle body side beam 1, a plurality of energy absorption cavities are formed in the reinforcing support 2, the structural strength of the reinforcing support 2 is improved by utilizing the plurality of energy absorption cavities, the arrangement space Q formed by surrounding is utilized, and the overall structural strength of the vehicle body side beam 1 is improved. Based on this, the present embodiment can increase the rigidity of the vehicle body side portion, can improve the collision force transmission capability of the vehicle body side portion, and contributes to the improvement of the vehicle body side collision safety.

In addition, when the side collision occurs in the vehicle, after the barrier comes into contact with the body side rail 1 of the vehicle body side portion, the body side rail 1 itself absorbs a part of the collision force, and the reinforcing bracket 2 is deformed by the collapse, so that the part of the collision force can be absorbed. Besides the transmission from the side beam 1 to the front and rear parts of the vehicle body, the non-absorbed collision force can be transmitted and dispersed through the side beam 3 or other transverse (i.e. left and right) connection structures of the vehicle body, so that the absorption, transmission and decomposition of the side collision force can be realized, and the side collision safety of the vehicle can be ensured.

Example two

The present embodiment relates to a vehicle in which the body side structure of the first embodiment is provided in the body.

In the vehicle of the present embodiment, as mentioned in embodiment one, the body side rail 1 may preferably be a rocker, and the vehicle of the present embodiment can increase the rigidity of the body side portion by providing the body side portion structure of the embodiment one, can improve the collision force transmitting capability of the body side portion, and contributes to the improvement of the side collision safety of the body.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A vehicle body side portion structure characterized in that:

Comprises a body side beam (1) and a reinforcing bracket (2) arranged at the bottom and/or the top of the body side beam (1);

The reinforced support (2) is internally provided with a plurality of energy absorption cavities, and the energy absorption cavities are sequentially arranged in the reinforced support (2) along the left-right direction of the whole vehicle.

2. The vehicle body side portion structure according to claim 1, characterized in that:

The automobile body side beam (1) is provided with an outer wall (1 a) and an inner wall (1 b) which are oppositely arranged in the left-right direction of the whole automobile, the outer wall (1 a) is positioned at one side, close to the outside of the automobile, of the automobile body side beam (1), and the inner wall (1 b) is positioned at one side, close to the inside of the automobile, of the automobile body side beam (1);

The reinforcing bracket (2) is provided with an outer side part (201) positioned at one side of the outer wall (1 a) facing the outside of the vehicle, a plurality of energy absorption cavities comprise a first cavity (2 a) positioned inside the outer side part (201), and the outer side part (201) is abutted against the outer side surface of the outer wall (1 a).

3. The vehicle body side portion structure according to claim 2, characterized in that:

A first connecting structure (4) for fixedly connecting the outer side part (201) and the body side beam (1) is arranged between the outer side part and the body side beam;

The first connecting structure (4) adopts a screw structure arranged along the left-right direction of the whole vehicle, and/or the first connecting structure (4) is a plurality of arranged at intervals.

4. The vehicle body side portion structure according to claim 2, characterized in that:

The reinforcing bracket (2) is provided with an inner side part (202) positioned between the outer wall (1 a) and the inner wall (1 b), the plurality of energy absorbing cavities comprise a second cavity (2 b) and a third cavity (2 c) which are separated inside the inner side part (202), and a second connecting structure (5) for fixedly connecting the inner side part (202) and the side beam (1) of the automobile body is arranged between the inner side part and the side beam.

5. The vehicle body side portion structure according to claim 4, characterized in that:

the second connecting structure (5) adopts a screw structure arranged along the up-down direction of the whole vehicle, and the second connecting structure (5) is positioned between the second cavity (2 b) and the third cavity (2 c).

6. The vehicle body side portion structure according to claim 4, characterized in that:

The inner portion (202) has a convex projection (2021) on a side thereof adjacent to the inner wall (1 b), and the interior of the projection (2021) is hollow and constitutes a part of the third cavity (2 c).

7. The vehicle body side portion structure according to claim 4, characterized in that:

the reinforcing bracket (2) adopts a self-welding structure made of plates;

Wherein, one side of the plate is bent and then welded in a self-closing way to form the first cavity (2 a), a bulge (2022) is formed on the other side of the plate, and the second cavity (2 b) and the third cavity (2 c) are separated by the bulge (2022) after the other side of the plate is bent and welded in a self-closing way.

8. The vehicle body side portion structure according to claim 1, characterized in that:

the reinforcing bracket (2) forms an arrangement space (Q) for arranging pipelines in the vehicle body side beam (1).

9. The vehicle body side structure according to any one of claims 1 to 8, characterized in that:

the automobile body side beam (1) is made of extruded aluminum profiles; and/or the number of the groups of groups,

The automobile body boundary beam (1) is a threshold beam, the reinforcing support (2) is arranged at the bottom of the automobile body boundary beam (1), and the reinforcing support (2) is a plurality of reinforcing support bodies arranged at intervals along the length direction of the automobile body boundary beam (1).

10. A vehicle, characterized in that:

A vehicle body side structure according to any one of claims 1 to 9 is provided in a vehicle body of the vehicle.