CN217496263U

CN217496263U - Car A post additional strengthening and car

Info

Publication number: CN217496263U
Application number: CN202221649874.6U
Authority: CN
Inventors: 孙福华
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-09-27
Anticipated expiration: 2032-06-28

Abstract

The utility model relates to an automobile A column reinforcing structure and an automobile, which comprises a reinforcing plate and a reinforcing tubular beam arranged in an automobile A column; the reinforcing plate is connected with the automobile A column, a cavity is formed between the reinforcing plate and the automobile A column, the reinforcing tubular beam is located in the cavity, and the reinforcing tubular beam is arranged along the automobile A column and connected to the reinforcing plate. The utility model discloses a car A post additional strengthening, by reinforcing plate and enhancement tubular beams both constitute, can effectively improve the rigidity and the mode of A post, can change the natural frequency of A post to can effectively avoid A post and outside excitation resonance, and then can effectively reduce noise or instrument tremble in the car; in addition, by providing the reinforcing tubular beams, part of the noise can be transmitted in the reinforcing tubular beams, the transmission rate of the noise in the cavity can be reduced, and the noise can be weakened due to the collision of the noise with the reinforcing tubular beams, so that the silent degree and the riding comfort degree in the vehicle can be effectively improved.

Description

Car A post additional strengthening and car

Technical Field

The utility model relates to an automobile parts technical field, in particular to car A post additional strengthening, the utility model discloses still relate to a car with this car A post additional strengthening.

Background

The automobile A column is used as an important supporting part and a stressed part of an automobile, and if the rigidity and the mode of the A column are low, small deformation or displacement can occur on a bumpy road section, so that abnormal sound is generated. In addition, because the A column is close to the front wheel, the road excitation is easily transmitted into the automobile through the path of the automobile wheel → the suspension → the automobile body → the A column, if the local rigidity and the mode of the A column are weak, the A column is easily close to the road excitation frequency, so that the A column can easily resonate with the external excitation, the excitation is amplified, the in-automobile rumbling or instrument trembling is caused, and the use experience of a user is influenced. In addition, traditional A post comprises inner panel, planking and the reinforcing plate that is located between the two, wherein be the cavity structure between inner panel and the reinforcing plate, and noise can reciprocating transmission in the cavity, can influence the sense of hearing of stereo set in the car greatly.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an automobile A post additional strengthening to improve the rigidity and the mode of A post.

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

an automobile A-pillar reinforcing structure comprises a reinforcing plate and a reinforcing tubular beam which are arranged in an automobile A-pillar;

the reinforcing plate is connected with the automobile A column, and a cavity is formed between the reinforcing plate and the automobile A column;

the reinforced tubular beam is positioned in the cavity, is arranged along the height direction of the automobile A column and is connected to the reinforced plate.

Furthermore, the reinforcing plate comprises an upper plate body and a lower plate body which are connected with each other;

the upper plate body is provided with an upper plate body and an upper connecting body arranged close to one end of the upper plate body, and the lower plate body is provided with a lower plate body and a lower connecting body arranged at one end of the lower plate body;

the upper connector is connected with the lower connector.

Further, the ratio of the height H1 to the width L1 of the upper plate body is X, the ratio of the height H2 to the width L2 of the lower plate body is Y, the difference between X and Y is not less than 0.05, and both X and Y are less than 0.5.

Furthermore, the cross section of the upper plate body is U-shaped.

Furthermore, the upper part of the reinforced tubular beam is connected to the reinforcing plate through an upper connecting plate, and the lower part of the reinforced tubular beam is connected to the reinforcing plate through a lower connecting plate.

Furthermore, the upper connecting plate is provided with a containing groove and a first connecting flanging, and the upper part of the reinforced tubular beam is connected with the first connecting flanging and the reinforcing plate in the containing groove; and/or the presence of a gas in the gas,

the lower connecting plate is provided with a connecting hole and a second connecting flanging, the lower part of the reinforced tubular beam is connected in the connecting hole, and the second connecting flanging is connected with the reinforced plate.

Furthermore, the middle part of the reinforced tubular beam is connected to the reinforcing plate through a middle connecting plate; the middle connecting plate is provided with a groove and a third connecting flange, the middle part of the reinforced tubular beam is embedded in the groove, and the third connecting flange is connected with the reinforced plate.

Furthermore, the reinforced tubular beam is provided with an upper tubular beam section and a lower tubular beam section which are connected, and the cross section shape of the upper tubular beam section is different from that of the lower tubular beam section.

Furthermore, the cross section of one of the upper section of the tubular beam and the lower section of the tubular beam is polygonal, and the cross section of the other of the upper section of the tubular beam and the lower section of the tubular beam is circular.

Compared with the prior art, the utility model discloses following advantage has:

the utility model discloses a car A post additional strengthening, by reinforcing plate and enhancement tubular beams both constitute, can effectively improve the rigidity and the mode of A post, and can change the natural frequency of A post to can effectively avoid A post and outside excitation resonance, and then can effectively reduce noise or instrument tremble in the car; in addition, through setting up the enhancement tubular beams, can make partial noise transmit in the enhancement tubular beams, can reduce the transmissivity of noise in the cavity to because of noise and the collision of enhancement tubular beams, can weaken the noise, thereby can effectively improve silence degree and riding comfort in the car.

In addition, the reinforcing plate is composed of an upper plate body and a lower plate body which are arranged separately, and compared with an integrally formed structure, the manufacturing cost can be reduced. The difference value between X and Y is not less than 0.05, so that resonance generated when vibration excitation is transmitted on the reinforcing plate can be effectively avoided, and the damping capacity of the A column to pavement excitation can be improved. The cross section of the upper plate body is U-shaped, so that the upper plate body has higher bending rigidity.

Secondly, the upper portion of the reinforcing tubular beam is connected to the reinforcing plate through the upper connecting plate, the lower portion of the reinforcing tubular beam is connected to the reinforcing plate through the lower connecting plate, connection between the reinforcing tubular beam and the reinforcing plate can be facilitated, and meanwhile the reinforcing plate can have good rigidity. The upper connecting plate is provided with the accommodating groove and the first connecting flanging, so that the upper connecting plate has better structural strength, and meanwhile, the upper connecting plate can be conveniently connected with the reinforced tubular beam and the reinforced plate; the lower connecting plate is provided with a connecting hole and a second connecting flanging, so that the lower connecting plate can be conveniently connected with the reinforced tubular beam and the reinforced plate.

In addition, the middle part of the reinforced tubular beam is connected to the reinforcing plate through the middle connecting plate, so that the connection rigidity between the reinforced tubular beam and the reinforcing plate can be improved. The middle part of the reinforced tubular beam is embedded in the groove of the middle connecting plate, so that the connecting area between the reinforced tubular beam and the middle connecting plate can be increased. The cross section shapes of the upper section of the tubular beam and the lower section of the tubular beam are set to be different, so that the mode of reinforcing the tubular beam can be improved, and the transmission of noise can be weakened.

Another object of the present invention is to provide a car, be equipped with in the a post of car as above car a post additional strengthening.

Car, through set up as above in the A post of car A additional strengthening, can effectively promote the rigidity and the mode of A post to can effectively avoid A post and external excitation resonance, and then can effectively improve the silence degree in the car and take the comfort level.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of an a-pillar reinforcement structure of an automobile according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an a-pillar reinforcement structure of an automobile according to an embodiment of the present invention at another viewing angle;

fig. 3 is a schematic structural diagram of a reinforcing plate according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an upper plate body according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line K-K of FIG. 4;

fig. 6 is a schematic structural view of a lower plate body according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a lower plate according to an embodiment of the present invention at another viewing angle;

fig. 8 is a schematic structural view of a reinforced tubular beam according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view taken along line D-D of FIG. 8;

FIG. 10 is a cross-sectional view taken along line E-E of FIG. 8;

FIG. 11 is a sectional view taken along line F-F of FIG. 8;

FIG. 12 is an enlarged view of portion A of FIG. 1;

fig. 13 is a schematic structural view of an upper connecting plate according to an embodiment of the present invention;

fig. 14 is a schematic structural view of an upper connecting plate according to an embodiment of the present invention at another viewing angle;

FIG. 15 is an enlarged view of portion B of FIG. 1;

fig. 16 is a schematic structural view of a middle connection plate according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a middle connection plate according to an embodiment of the present invention at a first viewing angle;

fig. 18 is a schematic structural diagram of a middle connection plate according to an embodiment of the present invention at a second viewing angle;

fig. 19 is a schematic structural diagram of a middle connection plate according to an embodiment of the present invention at a third viewing angle;

FIG. 20 is an enlarged view of portion C of FIG. 1;

fig. 21 is an assembly view of the reinforced tubular beam and the lower connecting plate and the reinforcing plate according to the embodiment of the present invention;

FIG. 22 is a sectional view taken along line G-G of FIG. 20;

fig. 23 is a schematic structural view of a lower connecting plate according to an embodiment of the present invention;

fig. 24 is a schematic structural view of a lower connecting plate according to an embodiment of the present invention at another viewing angle;

fig. 25 is a schematic structural view of the lower connecting plate according to the embodiment of the present invention at another viewing angle.

Description of the reference numerals:

1. a reinforcing plate;

101. an upper plate body; 1011. An upper plate body; 1012. An upper connector;

102. a lower plate body; 1021. a lower plate body main body; 1022. a lower connector;

2. reinforcing the tubular beam; 201. an upper section of the tubular beam; 202. a lower section of the tubular beam;

3. an upper connecting plate; 301. a first connecting flange; 302. a first positioning hole; 303. accommodating grooves;

4. a middle connecting plate; 401. third connecting flanging; 402. a groove; 403. a second positioning hole;

5. a lower connecting plate; 501. connecting holes; 502. the second connecting flange.

Detailed Description

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

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are to be construed as indicating or implying any particular importance.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to an automobile A-pillar reinforcing structure, which comprises a reinforcing plate 1 and a reinforcing tubular beam 2 which are arranged in an automobile A-pillar. Wherein, reinforcing plate 1 and car A post are connected to be formed with the cavity between reinforcing plate 1 and car A post, strengthen tubular beam 2 and be located the cavity, and strengthen tubular beam 2 and arrange along car A post, and connect on reinforcing plate 1.

The automobile A column reinforcing structure of the embodiment is composed of the reinforcing plate 1 and the reinforcing tubular beam 2, can effectively improve the rigidity and the mode of the A column, and can change the natural frequency of the A column, so that the A column can be effectively prevented from resonating with external excitation, and the noise in the automobile or instrument vibration can be effectively reduced; in addition, through setting up the enhancement tubular beams 2, can make partial noise transmit in the enhancement tubular beams 2, can reduce the transmissivity of noise in the cavity to because of the noise collides with enhancement tubular beams 2, can weaken the noise, thereby can effectively improve silence degree and ride comfort in the car.

Based on the above overall description, one exemplary structure of the reinforcing structure of the a-pillar of the automobile of the present embodiment is shown in fig. 1 and 2, and, for the convenience of understanding the present embodiment, the structure of the a-pillar of the automobile will be described first in general. An a-pillar for an automobile generally includes a longitudinal portion extending in a height direction of a vehicle body and a lateral portion extending in a length direction of the vehicle body, and generally includes an a-pillar inner panel and an a-pillar outer panel that enclose a cavity, and an a-pillar reinforcement structure provided in the cavity, and generally filled with foam.

As shown in fig. 1 and 2, the automobile a-pillar reinforcement structure of the present embodiment is integrally provided with an automobile a-pillar, which also has a longitudinal section extending in the height direction of the vehicle body, and a lateral section extending in the length direction of the vehicle body. And, the length of reinforcing tubular beam 2 is less than the length of reinforcing plate 1, and the both ends of reinforcing tubular beam 2 are located longitudinal section and horizontal section respectively. In this embodiment, in order to reduce the processing cost, as shown in fig. 3, the reinforcing plate 1 includes an upper plate body 101 and a lower plate body 102 that are connected. With such an arrangement, compared with the integrally formed structure, the processing cost of the reinforcing plate 1 can be effectively reduced. In addition, in order to improve the use effect, in the concrete implementation, it is better to connect the upper plate body 101 and the lower plate body 102 with the a-pillar inner plate and the a-pillar outer plate so as to improve the connection strength between the reinforcing plate 1 and the automobile a-pillar.

The upper plate 101 is configured as shown in fig. 4 and 5, and has an upper plate body 1011 and an upper connecting body 1012 disposed near one end of the upper plate body 1011. Also, an upper plate body 1011 is provided to extend in the vehicle body length direction, and an upper connecting body 1012 extends downward in the vehicle body height direction to be connected to the lower plate body 102. In addition, in order to increase the rigidity of the upper plate 101, as shown in fig. 5, as a preferred embodiment, the cross section of the upper plate body 1011 is U-shaped, so that the upper plate body 1011 has a better bending rigidity.

It should be noted that the cross section of the upper plate body 1011 may be formed in an L shape, a W shape, or the like, in addition to the U shape. In addition, in order to improve the structural strength of the upper plate 101, the lower side of the upper plate body 1011 and the right side of the upper connecting body 1012 are formed with the outward flanges, as shown in the state of fig. 4.

The lower plate 102 has a structure as shown in fig. 6 and 7, and has an elongated shape extending in the height direction of the vehicle body as a whole, and a U-shaped cross section. The lower plate body 102 includes a lower plate body 1021, and a lower connection body 1022 located at an upper end of the lower plate body 1021, the lower connection body 1022 being connected to the upper connection body 1012. In order to improve the coupling effect between the upper plate 101 and the lower plate 102, the lower coupling body 1022 is welded to the upper coupling body 1012 while being overlapped. In addition, in order to improve the use effect, two sides of the lower plate body 102 in the width direction are respectively formed with outward flanges, so that the lower plate body 102 has better structural strength.

In this embodiment, in order to effectively avoid resonance generated when vibration excitation is transmitted on the reinforcing plate 1, as shown in fig. 4 and 7, the ratio of the height H1 to the width L1 of the upper plate body 1011 is X, the ratio of the height H2 to the width L2 of the lower plate body 1021 is Y, the difference between X and Y is not less than 0.05, and both X and Y are less than 0.5. Wherein X and Y are both set to be less than 0.5, which not only enables the upper plate 101 and the lower plate 102 to have high bending rigidity, but also enables the upper plate to have high surface rigidity.

In addition, in order to avoid the road surface excitation frequency and the frequency of the peripheral component connected to the reinforcing plate, the difference between X and Y is set to be not less than 0.05, so that the resonance generated when the vibration excitation is transmitted on the reinforcing plate 1 can be effectively avoided, the damping capability of the reinforcing plate 1 on the road surface excitation is improved, and the vibration energy on the reinforcing plate 1 can be effectively damped. As a preferred embodiment, X in this embodiment is specifically 0.09, Y is specifically 0.23, and the difference between X and Y is 0.14, so as to better improve the damping capability of the reinforcing plate 1 for road excitation. Of course, the values of X and Y can be adjusted according to specific situations, as long as X and Y are both less than 0.5, and the difference between X and Y is not less than 0.05.

The structure of the reinforced tubular beam 2 of the present embodiment is as shown in fig. 8 to 11, which is provided following the shape of the reinforcing plate 1, and the reinforced tubular beam 2 has an upper tubular beam section 201 and a lower tubular beam section 202 connected together, and the upper tubular beam section 201 and the lower tubular beam section 202 have different cross-sectional shapes. For convenience of manufacture, the cross section of one of the upper tubular beam section 201 and the lower tubular beam section 202 is polygonal, and the cross section of the other is circular.

In one preferred embodiment, as shown in fig. 9, the upper tubular beam section 201 has a generally irregular quadrilateral cross-section, while the lower tubular beam section 202 has a circular cross-section as shown in fig. 10. This structure can make tubular beam upper segment 201 have better rigidity than tubular beam lower segment 202 to can improve the mode of reinforcing tubular beam 2 because of the change between tubular beam upper segment 201 and tubular beam lower segment 202 cross section, simultaneously because of the collision of noise and reinforcing tubular beam 2, can weaken the transmission of noise.

Here, the cross section of the tubular beam upper section 201 may be in other shapes such as a pentagon, a hexagon, and the like, in addition to the irregular quadrangle. In addition to the tubular upper section 201 having a polygonal cross section and the tubular lower section 202 having a circular cross section, the tubular upper section 201 may have a circular cross section and the tubular lower section 20 may have a polygonal cross section. In addition, it is also possible to divide the reinforced tubular beam 2 into a plurality of sections having different cross sections, in addition to the reinforced tubular beam 2 being divided into the tubular beam upper section 201 and the tubular beam lower section 202 having different cross sections.

In this embodiment, in order to improve the connection effect between the reinforcing tubular beam 2 and the reinforcing plate 1, the upper portion of the reinforcing tubular beam 2 is connected to the reinforcing plate 1 through the upper connecting plate 3, and the lower portion of the reinforcing tubular beam 2 is connected to the reinforcing plate 1 through the lower connecting plate 5. In order to further improve the connecting effect, the middle part of the reinforced tubular beam 2 is connected on the reinforced plate 1 through the middle connecting plate 4.

The structure of the upper connecting plate 3 is shown in fig. 12 to 14, and in order to provide better structural strength, the cross section of the upper connecting plate is U-shaped, and the upper connecting plate has a receiving groove 303 and two first connecting flanges 301. As shown in fig. 12, upper connection plate 3 is located in upper plate 101, the upper portion of tubular beam upper section 201 is connected in receiving groove 303, and two first connection flanges 301 are connected to reinforcing plate 1, respectively. And, the tubular beam upper section 201 and the upper connecting plate 3 are preferably connected by two welding joints. In addition, in order to facilitate the arrangement of the upper connecting plate 3 in the upper plate body 101, as shown in fig. 13, first positioning holes 302 are provided on the upper connecting plate 3, and the first positioning holes 302 of the present embodiment are specifically two.

As shown in fig. 15, the intermediate connecting plate 4 straddles the reinforcing tubular beam 2, and the intermediate connecting plate 4 is provided on a side of the reinforcing tubular beam 2 facing away from the reinforcing plate 1, and the upper connecting plate 3 is provided on a side of the reinforcing tubular beam 2 facing the reinforcing plate 1, whereby the reinforcing tubular beam 2 can be firmly attached to the reinforcing plate 1. The structure of the middle connecting plate 4 is as shown in fig. 16 to 19, a groove 402 and a third connecting flange 401 are arranged on the middle connecting plate 4, the middle part of the reinforced tubular beam 2 is embedded in the groove 402, and the third connecting flange 401 is connected with the reinforced plate 1. With the arrangement, the middle connecting plate 4 has better structural strength, and the middle part of the reinforced tubular beam 2 is embedded in the groove 402, so that the connecting area between the reinforced tubular beam 2 and the lower plate body 102 can be increased.

Specifically, based on the state shown in fig. 16, the groove 402 is located at the middle of the middle connecting plate 4 in the length direction and is configured to follow the reinforcing tubular beam 2. The number of the third connecting flanges 401 is three, one of the third connecting flanges 401 is folded rightward along the length direction of the middle connecting plate 4 (i.e., the left-right direction shown in the state of fig. 16), and the other two flanges are respectively folded upward and downward along the width direction of the middle connecting plate 4. Further, in order to facilitate the arrangement of the middle connection plate 4 within the lower plate body 102, as shown in fig. 13, a second positioning hole 403 is provided on the middle connection plate 4. And, in order to improve the connection effect, strengthen tubular beams 2 and well connecting plate 4 and preferably adopt two guarantor welding to connect.

The structure of the lower connecting plate 5 of the present embodiment is shown in fig. 21 to 25, the lower connecting plate 5 is provided with a connecting hole 501 and a second connecting flange 502, the lower portion of the reinforced tubular beam 2 is connected in the connecting hole 501, and the second connecting flange 502 is connected with the reinforced plate 1. Based on the fact that the cross section of the lower plate 102 is U-shaped, in order to improve the connection effect between the lower connecting plate 5 and the lower plate 102, as a preferred embodiment, there are two second connecting flanges 502 in this embodiment, and the two second connecting flanges 502 are respectively connected to two sides of the lower plate 102.

In addition, in order to improve the connection effect between the reinforced tubular beam 2 and the connection hole 501, as shown in fig. 23, the connection hole 501 of the present embodiment is a hole flanging, which not only improves the structural strength at the connection hole 501, but also increases the connection area between the connection hole 501 and the reinforced tubular beam 2. And, the inner diameter of the connecting hole 501 is slightly larger than the diameter of the reinforced tubular beam 2, so that the reinforced tubular beam 2 passes through the connecting hole 501, and in order to improve the connecting effect, the reinforced tubular beam 2 and the lower connecting plate 5 are preferably connected by two weld joints.

In this embodiment, the tubular reinforcing beam 2 can be firmly connected to the reinforcing plate 1 by connecting the tubular reinforcing beam 2 to the reinforcing plate 1 using the upper connecting plate 3, the middle connecting plate 4, and the lower connecting plate 5, and by providing the upper connecting plate 3 on the side of the tubular reinforcing beam 2 facing the reinforcing plate 1 and the middle connecting plate 4 on the side of the tubular reinforcing beam 2 facing away from the reinforcing plate 1. Here, it should be noted that, in addition to the upper, middle, and lower connecting plates being provided at the same time, only two of the connecting plates may be provided, and more connecting plates may be further provided to connect the reinforcing tubular beams 2 and the reinforcing plates 1.

The car A post additional strengthening of this embodiment through arranging reinforcing tubular beam 2 in the cavity that reinforcing plate 1 and A post inner panel formed, its not too much design in earlier stage and arranging, development cost in the earlier stage that can greatly reduced. In addition, through making reinforcing plate 1 and reinforcing tubular beams 2 adopt above-mentioned structure, can make this car A post additional strengthening have better rigidity and mode, can effectively avoid the road surface excitation.

In addition, the embodiment also relates to an automobile, and the A column of the automobile is provided with the automobile A column reinforcing structure.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automobile A post additional strengthening which characterized in that:

the automobile A-pillar reinforcement structure comprises a reinforcement plate (1) and a reinforcement tubular beam (2) which are arranged in an automobile A-pillar;

the reinforcing plate (1) is connected with the automobile A column, and a cavity is formed between the reinforcing plate (1) and the automobile A column;

the reinforced tubular beam (2) is located in the cavity, and the reinforced tubular beam (2) is arranged along the automobile A column and connected to the reinforced plate (1).

2. The automobile a-pillar reinforcement structure according to claim 1, characterized in that:

the reinforcing plate (1) comprises an upper plate body (101) and a lower plate body (102) which are connected with each other;

the upper plate body (101) is provided with an upper plate body (1011) and an upper connecting body (1012) which is arranged close to one end of the upper plate body (1011), and the lower plate body (102) is provided with a lower plate body (1021) and a lower connecting body (1022) which is positioned at one end of the lower plate body (1021);

the upper connecting body (1012) is connected to the lower connecting body (1022).

3. The automobile a-pillar reinforcement structure according to claim 2, characterized in that:

the ratio of the height H1 to the width L1 of the upper plate body (1011) is X, the ratio of the height H2 to the width L2 of the lower plate body (1021) is Y, the difference between X and Y is not less than 0.05, and both X and Y are less than 0.5.

4. The automobile a-pillar reinforcement structure according to claim 2, characterized in that:

the cross section of the upper plate body main body (1011) is U-shaped.

5. The automobile a-pillar reinforcement structure according to claim 1, characterized in that:

the upper portion of the reinforced tubular beam (2) is connected to the reinforced plate (1) through an upper connecting plate (3), and the lower portion of the reinforced tubular beam (2) is connected to the reinforced plate (1) through a lower connecting plate (5).

6. The automobile a-pillar reinforcement structure according to claim 5, characterized in that:

the upper connecting plate (3) is provided with a containing groove (303) and a first connecting flanging (301), the upper part of the reinforced tubular beam (2) is connected in the containing groove (303), and the first connecting flanging (301) is connected with the reinforced plate (1); and/or the presence of a gas in the gas,

the lower connecting plate (5) is provided with a connecting hole (501) and a second connecting flange (502), the lower portion of the reinforced tubular beam (2) is connected into the connecting hole (501), and the second connecting flange (502) is connected with the reinforced plate (1).

7. The automobile a-pillar reinforcement structure according to claim 1, characterized in that:

the middle part of the reinforced tubular beam (2) is connected to the reinforced plate (1) through a middle connecting plate (4);

the middle connecting plate (4) is provided with a groove (402) and a third connecting flange (401), the middle part of the reinforced tubular beam (2) is embedded in the groove (402), and the third connecting flange (401) is connected with the reinforced plate (1).

8. The automobile a-pillar reinforcement structure according to any one of claims 1 to 7, characterized in that:

the reinforced tubular beam (2) is provided with an upper tubular beam section (201) and a lower tubular beam section (202) which are connected, and the cross section shapes of the upper tubular beam section (201) and the lower tubular beam section (202) are different.

9. The automobile a-pillar reinforcement structure of claim 8, wherein:

the cross section of one of the upper tubular beam section (201) and the lower tubular beam section (202) is polygonal, and the cross section of the other one of the upper tubular beam section and the lower tubular beam section is circular.

10. An automobile, characterized in that: an a-pillar reinforcement structure for an automobile according to any one of claims 1 to 9 is provided in the a-pillar of the automobile.