Instrument panel cross beam and vehicle

Abstract

The utility model provides an instrument panel cross beam and a vehicle, relates to the technical field of vehicles, and aims to improve the safety collision performance of the instrument panel cross beam. The instrument panel cross beam comprises a first cross beam, a dash panel connecting support, a left gutter channel connecting support and a right gutter channel connecting support. The dash panel connecting support is provided with a first weakening structure hole, and the first weakening structure hole penetrates through the dash panel connecting support. The left side gutter channel connecting support is provided with a second weakening structure hole, and the second weakening structure hole penetrates through the left side gutter channel connecting support. The right side gutter channel connecting support is provided with a third weakening structure hole, and the third weakening structure hole penetrates through the right side gutter channel connecting support. Therefore, the displacement of the steering column assembly and the displacement of the steering wheel assembly can be reduced, and the energy absorption performance of the instrument panel cross beam and the safe collision performance of a vehicle can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to an instrument panel cross beam and a vehicle. BACKGROUND

[0002] As an important component of the automobile cabin, the instrument panel cross beam connects the front wall and the A-pillar of the vehicle body, and is also loaded with a steering system, an instrument system and other electrical elements. The strength and rigidity of the instrument panel cross beam will directly affect the driving comfort and safety of the driver.

[0003] As the electrical elements loaded on the instrument panel cross beam are increasing in number and weight, in order to ensure that the steering wheel does not shake during the operation of the vehicle and affect the driving experience of the user, the instrument panel cross beam is required to have good rigidity performance. However, the high rigidity requirement causes the impact energy to be unable to be absorbed when the instrument panel cross beam is subjected to a collision, and the steering column assembly and the steering wheel assembly installed on the instrument panel cross beam are displaced towards the rear of the vehicle under the influence of the front wall connecting structure, thereby compressing the passenger survival space, reducing the safety performance, and further failing to effectively improve the overall vehicle collision safety performance. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the present application provides an instrument panel cross beam and a vehicle for improving the safety performance of the instrument panel cross beam.

[0005] In a first aspect, the embodiments of the present application provide an instrument panel cross beam, which comprises a first cross beam, a front wall connecting bracket, a left side gutter connecting bracket and a right side gutter connecting bracket. The front wall connecting bracket is connected with the first cross beam, and the front wall connecting bracket has a first weakening structure hole which penetrates the front wall connecting bracket in the height direction of the front wall connecting bracket. The left side gutter connecting bracket is connected with the first cross beam, and the left side gutter connecting bracket has a second weakening structure hole which penetrates the left side gutter connecting bracket in the height direction of the left side gutter connecting bracket. The right side gutter connecting bracket is connected with the first cross beam, and the right side gutter connecting bracket has a third weakening structure hole which penetrates the right side gutter connecting bracket in the height direction of the right side gutter connecting bracket.

[0006] According to the instrument panel cross beam provided by the embodiment of the present application, the first weakening structure hole, the second weakening structure hole and the third weakening structure hole can increase the collapse amount of the vehicle when the vehicle is in a collision, so that the collision impact force can be weakened at the first weakening structure hole, the second weakening structure hole and the third weakening structure hole, thereby reducing the displacement amount of the steering column assembly and the steering wheel assembly under the requirement of ensuring the modal of the instrument panel cross beam, and the energy absorption of the instrument panel cross beam and the safety performance of the vehicle are improved.

[0007] In a possible implementation manner, the fourth weakening structure hole is arranged on the side wall of the front apron connecting support, the fourth weakening structure hole penetrates the front apron connecting support in the width direction of the front apron connecting support, and the extension direction of the fourth weakening structure hole intersects the extension direction of the first weakening structure hole.

[0008] In a possible implementation manner, the collapse groove is arranged on the bottom wall of the front apron connecting support, and the collapse groove is located on the side of the first weakening structure hole close to the first cross beam.

[0009] In a possible implementation manner, the collapse groove has a collapse inner wall in the height direction of the front apron connecting support, the collapse inner wall is the inner wall of the collapse groove close to the first weakening structure hole, and the collapse inner wall is inclined from the groove bottom of the collapse groove to the direction close to the first weakening structure hole in the height direction of the front apron connecting support.

[0010] In a possible implementation manner, the instrument panel cross beam further comprises a bending piece, and the bending piece extends away from the ground from the end of the front apron connecting support away from the first cross beam in the height direction of the front apron connecting support.

[0011] In a possible implementation manner, the instrument panel cross beam further comprises a second cross beam, a fixed support, a first support support and a second support support, the second cross beam is connected with the first cross beam through the fixed support, the two ends of the first support support are connected with the connection between the first cross beam and the fixed support, and the two ends of the second support support are connected with the connection between the second cross beam and the fixed support.

[0012] In a possible implementation manner, the instrument panel cross beam further comprises a left lap joint support, a right lap joint support, a third support support and a fourth support support, the left lap joint support is connected with the end of the first cross beam away from the fixed support, the two ends of the third support support are connected with the first cross beam and the left lap joint support, the right lap joint support is connected with the end of the second cross beam away from the fixed support, and the two ends of the fourth support support are connected with the second cross beam and the right lap joint support.

[0013] In a possible implementation, the left lap joint support includes a left front support part and a left rear support part arranged at intervals, the wall thickness H1 of the left front support part ranges from 1mm to 2.5mm, and the wall thickness H2 of the left rear support part ranges from 1mm to 2.5mm.

[0014] In a possible implementation, the instrument panel beam further includes an end cover, the left lap joint support has a connecting cavity, the outer side wall of the connecting cavity is connected with the first beam, and opposite ends of the connecting cavity in the height direction of the connecting cavity are both provided with an opening, and the end cover seals the opening.

[0015] In a second aspect, the present application provides a vehicle, which includes the instrument panel beam.

[0016] The technical effects brought by any design manner in the second aspect can refer to the technical effects brought by different design manners in the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the accompanying drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0019] Figure 1 Partial schematic view of the instrument panel beam provided by some embodiments of the present application;

[0020] Figure 2 Partial top view of the instrument panel beam provided by some embodiments of the present application;

[0021] Figure 3 Side view of the instrument panel beam provided by some embodiments of the present application;

[0022] Figure 4 Partial sectional view of the instrument panel beam provided by some embodiments of the present application;

[0023] Figure 5 Side view of the instrument panel beam provided by some embodiments of the present application;

[0024] Figure 6 Perspective view of the instrument panel beam provided by some embodiments of the present application;

[0025] Figure 7A schematic view of a left lap joint support is provided for some embodiments of the present application.

[0026] Figure 8 A partial perspective view of an instrument panel cross beam is provided for some embodiments of the present application.

[0027] Reference signs:

[0028] 100, instrument panel cross beam;

[0029] 1, first cross beam;

[0030] 2, front wall connecting support; 21, first weakening structure hole; 22, fourth weakening structure hole; 23, collapse groove; 231, collapse inner wall; 24, bending piece;

[0031] 3, left side gutter connecting support; 31, second weakening structure hole; 32, fifth weakening structure hole;

[0032] 4, right side gutter connecting support; 41, third weakening structure hole; 42, sixth weakening structure hole;

[0033] 5, second cross beam;

[0034] 6, fixed support; 61, first supporting support; 62, third supporting support; 63, fourth supporting support; 64, second supporting support;

[0035] 7, left lap joint support; 71, left front supporting part; 72, left rear supporting part; 73, end cover;

[0036] 8, right lap joint support. DETAILED DESCRIPTION

[0037] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0038] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, "connecting" can be detachable connection, or can be non-detachable connection, can be direct connection, or indirect connection through intermediate medium. Among them, "fixed connection" refers to the relative position relationship after being connected with each other. In addition, the orientation language mentioned in the embodiments of the present application, such as "inner", "outer" and the like, is only the direction of the reference drawing, therefore, the orientation language used is to better and more clearly illustrate and understand the embodiments of the present application, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0040] In the description of the embodiments of the present application, the terms "including", "containing" or any other variants thereof are intended to cover non-exclusive containing, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of another identical element in the process, method, article or device including the element. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0041] The instrument panel cross beam is an important component of the automobile cabin, connecting the front wall and the A-pillar of the vehicle body, and the steering system, instrument system and other electrical elements are also mounted thereon. The strength and rigidity of the instrument panel cross beam will directly affect the driving comfort and safety of the driver.

[0042] As the electrical elements mounted on the instrument panel cross beam continue to increase in number and weight, in order to ensure that the steering wheel does not shake during vehicle operation and affect the user's driving experience, the instrument panel cross beam is required to have good rigidity performance. However, the higher rigidity requirement causes the impact energy to be unable to be absorbed when the instrument panel cross beam is subjected to a collision, and the steering column assembly and steering wheel assembly mounted on the instrument panel cross beam are displaced to the rear of the vehicle under the influence of the front wall connecting structure, thereby compressing the passenger survival space, reducing the safety performance, and further unable to effectively improve the vehicle collision safety performance.

[0043] In order to solve the above technical problems, the present application provides an instrument panel cross beam and a vehicle.

[0044] The instrument panel cross beam of the embodiments of the present application is described below.

[0045] Please refer to Figures 1-3 ,Figure 1 A partial view of an instrument panel cross beam is provided for some embodiments of the present application, Figure 2 A partial top view of an instrument panel cross beam is provided for some embodiments of the present application, Figure 3 A side view of an instrument panel cross beam is provided for some embodiments of the present application. The instrument panel cross beam 100 can include a first cross beam 1, a front wall connecting bracket 2, a left side gutter connecting bracket 3, and a right side gutter connecting bracket 4.

[0046] The front wall connecting bracket 2 is connected with the first cross beam 1. The front wall connecting bracket 2 has a first weakened structure hole 21. Wherein, one end of the front wall connecting bracket 2 is connected with the first cross beam 1, and the other end can be connected with the front wall, and the first weakened structure hole 21 is close to the front wall.

[0047] In the height direction of the front wall connecting bracket 2, the first weakened structure hole 21 penetrates the front wall connecting bracket 2. Specifically, in the height direction of the front wall connecting bracket 2, the first weakened structure hole 21 extends from the upper surface of the front wall connecting bracket 2 to the lower surface of the front wall connecting bracket 2, so that the front wall connecting bracket 2 can have a crush amount. Thus, the energy absorption of the front wall connecting bracket 2 can be improved.

[0048] For example, the cross section of the first weakened structure hole 21 can be formed in a rectangular shape.

[0049] The left side gutter connecting bracket 3 can be connected with the first cross beam 1. Specifically, one end of the left side gutter connecting bracket 3 can be connected with the first cross beam 1, and the other end can be connected with the gutter, and the left side gutter connecting bracket 3 is located on one side of the front wall connecting bracket 2.

[0050] The left side gutter connecting bracket 3 has a second weakened structure hole 31. Wherein, the second weakened structure hole 31 can be located in the middle of the left side gutter connecting bracket 3, or can be located at the edge of the left side gutter connecting bracket 3.

[0051] In the height direction of the left side gutter connecting bracket 3, the second weakened structure hole 31 can penetrate the left side gutter connecting bracket 3. Specifically, in the height direction of the left side gutter connecting bracket 3, the second weakened structure hole 31 extends from the upper surface of the left side gutter connecting bracket 3 to the lower surface of the left side gutter connecting bracket 3, so that the left side gutter connecting bracket 3 can have a crush amount. Thus, the energy absorption of the left side gutter connecting bracket 3 can be improved.

[0052] The right side gutter connecting bracket 4 can be connected with the first cross beam 1. Specifically, one end of the right side gutter connecting bracket 4 can be connected with the first cross beam 1, and the other end can be connected with the gutter, and the right side gutter connecting bracket 4 and the left side gutter connecting bracket 3 can be located on the two sides opposite to the front wall connecting bracket 2.

[0053] The right side gutter connecting bracket 4 has a third weakened structure hole 41. In the height direction of the right side gutter connecting bracket 4, the third weakened structure hole 41 penetrates the right side gutter connecting bracket 4. Specifically, in the height direction of the right side gutter connecting bracket 4, the second weakened structure hole 31 extends from the upper surface of the right side gutter connecting bracket 4 to the lower surface of the right side gutter connecting bracket 4, so that the right side gutter connecting bracket 4 can have a collapse amount. Therefore, the energy absorption of the right side gutter connecting bracket 4 can be improved.

[0054] According to the instrument panel beam 100 of the embodiment of the present application, by arranging the first weakened structure hole 21 on the front wall connecting bracket 2, the second weakened structure hole 31 on the left side gutter connecting bracket 3, and the third weakened structure hole 41 on the right side gutter connecting bracket 4, when the vehicle collides, the first weakened structure hole 21, the second weakened structure hole 31 and the third weakened structure hole 41 can increase the collapse amount of the vehicle, so that the collision impact force can be weakened at the first weakened structure hole 21, the second weakened structure hole 31 and the third weakened structure hole 41, thereby helping to reduce the displacement amount of the steering column assembly and the steering wheel assembly under the requirement of ensuring the modal of the instrument panel beam 100, thereby helping to improve the energy absorption of the instrument panel beam 100 and the safety performance of the vehicle.

[0055] Please continue to refer to Figures 1-3 In some embodiments, the fourth weakened structure hole 22 can be arranged on the side wall of the front wall connecting bracket 2. In the width direction of the front wall connecting bracket 2, the fourth weakened structure hole 22 penetrates the front wall connecting bracket 2, and the extension direction of the fourth weakened structure hole 22 intersects the extension direction of the first weakened structure hole 21. Therefore, the energy absorption of the front wall connecting bracket 2 can be further improved.

[0056] For example, the fifth weakened structure hole 32 can be arranged on the side wall of the left side gutter connecting bracket 3. In the width direction of the left side gutter connecting bracket 3, the fifth weakened structure hole 32 penetrates the left side gutter connecting bracket 3, and the extension direction of the fifth weakened structure hole 32 intersects the extension direction of the second weakened structure hole 31. Therefore, the energy absorption of the left side gutter connecting bracket 3 can be further improved.

[0057] Please refer to Figures 2-4 , Figure 4A partial cross-sectional view of the instrument panel cross beam is provided for some embodiments of the present application. As another example, a sixth weakening structure hole 42 can be provided in the side wall of the right side gutter connecting bracket 4. In the width direction of the right side gutter connecting bracket 4, the sixth weakening structure hole 42 penetrates the right side gutter connecting bracket 4, and the extension direction of the sixth weakening structure hole 42 intersects the extension direction of the third weakening structure hole 41. Thus, it is beneficial to further improve the energy absorption of the right side gutter connecting bracket 4.

[0058] Please continue to refer to Figure 4 In some embodiments, the bottom wall of the front apron connecting bracket 2 can be provided with a collapse groove 23. The collapse groove 23 is located on the side of the first weakening structure hole 21 close to the first cross beam 1. The collapse groove 23 can penetrate the front apron connecting bracket 2. Thus, when the vehicle collides, the collapse groove 23 can guide the energy release when the collision occurs, thereby reducing the displacement of the steering column assembly and the steering wheel assembly to the driver, thereby improving the safety and reliability of the vehicle.

[0059] Please continue to refer to Figure 4 In some embodiments, in the height direction of the front apron connecting bracket 2, the collapse groove 23 has a collapse inner wall 231. The collapse inner wall 231 is the inner wall of the collapse groove 23 close to the first weakening structure hole 21. In the height direction of the front apron connecting bracket 2, the collapse inner wall 231 is inclined from the groove bottom of the collapse groove 23 to the direction close to the first weakening structure hole 21. Thus, when the vehicle collides, the collapse inner wall 231 is inclined to make the front apron connecting bracket 2 can be bent at the collapse groove 23, and also increase the collapse amount of the front apron connecting bracket 2, thereby improving the energy absorption of the instrument panel cross beam 100, thereby improving the safety performance of the vehicle.

[0060] Please refer to Figure 5 , Figure 5 A side view of the instrument panel cross beam is provided for some embodiments of the present application. In some embodiments, the instrument panel cross beam 100 further comprises a bending piece 24. In the height direction of the front apron connecting bracket 2, the bending piece 24 extends from the end of the front apron connecting bracket 2 away from the first cross beam 1 to the direction away from the ground, so that the bending piece 24 and the front apron connecting bracket 2 have an included angle. Thus, by providing the bending piece 24 in the direction of the force, when the vehicle collides, the front apron connecting bracket 2 can be bent in time, thereby absorbing the collision energy, avoiding the displacement of the steering column assembly to the rear of the vehicle, thereby improving the energy absorption of the instrument panel cross beam 100.

[0061] Please refer to Figure 6 , Figure 6A perspective view of the instrument panel cross beam is provided for some embodiments of the present application. In some embodiments, the instrument panel cross beam 100 can further comprise a second cross beam 5, a fixed support 6, a first support bracket 61 and a second support bracket 64. The second cross beam 5 can be connected with the first cross beam 1 through the fixed support 6, so that the first cross beam 1 and the second cross beam 5 can be staggered in the width direction of the instrument panel cross beam 100.

[0062] The two ends of the first support bracket 61 are connected with the first cross beam 1 and the fixed support 6 respectively, and the two ends of the second support bracket 64 are connected with the second cross beam 5 and the fixed support 6 respectively. Thus, by arranging the first support bracket 61 and the second support bracket 64, the connection strength between the first cross beam 1 and the fixed support 6 and the connection strength between the second cross beam 5 and the fixed support 6 can be improved, thereby facilitating the improvement of the connection strength between the first cross beam 1 and the second cross beam 5, avoiding the deformation of the instrument panel cross beam 100 at the first cross beam 1 and the second cross beam 5, and further facilitating the improvement of the overall strength of the instrument panel cross beam 100.

[0063] For example, the cross section of the first support bracket 61 can be triangular, and the cross section of the second support bracket 64 can also be triangular. Thus, the reliability of the support of the first support bracket 61 and the second support bracket 64 can be ensured. It should be noted that the cross sections of the first support bracket 61 and the second support bracket 64 can also be other shapes, which are not limited in the present application.

[0064] Please continue to refer to Figure 6 In some embodiments, the instrument panel cross beam 100 can further comprise a left lap bracket 7, a right lap bracket 8, a third support bracket 62 and a fourth support bracket 63. The left lap bracket 7 is connected with the end of the first cross beam 1 away from the fixed support 6. The two ends of the third support bracket 62 are connected with the first cross beam 1 and the left lap bracket 7 respectively. The right lap bracket 8 is connected with the end of the second cross beam 5 away from the fixed support 6, and the two ends of the fourth support bracket 63 are connected with the second cross beam 5 and the right lap bracket 8 respectively. Thus, by arranging the third support bracket 62 and the fourth support bracket 63, the connection strength between the first cross beam 1 and the left lap bracket 7 and the connection strength between the second cross beam 5 and the right lap bracket 8 can be improved, thereby avoiding the deformation of the instrument panel cross beam 100 at the first cross beam 1 and the second cross beam 5, and further facilitating the improvement of the overall strength of the instrument panel cross beam 100.

[0065] For example, the cross section of the third support bracket 62 can be triangular, and the cross section of the fourth support bracket 63 can also be triangular.

[0066] Please refer to Figure 7 , Figure 7A schematic view of the left lap joint support is provided for some embodiments of the present application. In some embodiments, the left lap joint support 7 includes a left front support portion 71 and a left rear support portion 72 arranged at intervals, thereby ensuring the reliability of the connection with the first cross beam 1.

[0067] The wall thickness H1 of the left front support portion 71 is in the range of 1mm≤H1≤2.5mm, and the wall thickness H2 of the left rear support portion 72 is in the range of 1mm≤H2≤2.5mm. In this way, the structural strength of the left front support portion 71 and the left rear support portion 72 can be ensured, thereby facilitating the improvement of the overall rigidity of the instrument panel cross beam 100.

[0068] For example, the wall thickness H1 of the left front support portion 71 can be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, etc. The wall thickness H2 of the left rear support portion 72 can be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, etc.

[0069] It should be noted that the structure of the right lap joint support 8 is similar to that of the left lap joint support 7, which will not be described here.

[0070] Please refer to Figure 8 , Figure 8 A partial perspective view of the instrument panel cross beam is provided for some embodiments of the present application. In some embodiments, the left lap joint support 7 has a connecting cavity, and the outer side wall of the connecting cavity is connected with the first cross beam 1. In this way, the connecting area between the left lap joint support 7 and the first cross beam 1 can be increased, thereby facilitating the improvement of the reliability of the connection between the left lap joint support 7 and the first cross beam 1.

[0071] The instrument panel cross beam 100 can further include an end cover 73. In the height direction of the connecting cavity, the opposite ends of the connecting cavity both have openings, and the end cover 73 seals the openings. The end cover 73 can be connected with the left lap joint support 7 by welding. In this way, the end cover 73 can increase the structural strength of the left lap joint support 7, thereby facilitating the improvement of the overall modal of the instrument panel cross beam 100.

[0072] The vehicle of the embodiments of the present application will be described below.

[0073] The application provides a vehicle comprising the instrument panel cross beam 100. In the simulation analysis, the instrument panel cross beam 100 is successfully bent at the bending part 24, the intrusion of the steering column assembly is optimized from the original 143mm to 112mm, the effect is remarkable, and the rigidity requirement of the instrument panel cross beam 100 still meets the target requirement. Thus, the conflict between the safety attribute and the NVH rigidity attribute of the instrument panel cross beam 100 can be solved, that is, under the premise that the modal target of the instrument panel cross beam 100 itself meets the requirement, the safety crash performance of the instrument panel cross beam 100 can be improved, and the displacement of the steering column assembly and the steering wheel assembly when the crash occurs to the driver is reduced.

[0074] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0075] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A dashboard crossbeam, characterized in that, The instrument panel crossbeam includes: First crossbeam; A front bulkhead connecting bracket is connected to the first crossbeam. The front bulkhead connecting bracket has a first weakening structural hole, which penetrates the front bulkhead connecting bracket in the height direction. The left-side water trough connecting bracket is connected to the first crossbeam. The left-side water trough connecting bracket has a second weakening structural hole, which penetrates the left-side water trough connecting bracket in the height direction. The right-side water trough connecting bracket is connected to the first crossbeam. The right-side water trough connecting bracket has a third weakening structural hole, which penetrates the right-side water trough connecting bracket in the height direction.

2. The instrument panel crossbeam according to claim 1, characterized in that, The front panel connecting bracket has a fourth weakening structural hole on its side wall. The fourth weakening structural hole penetrates the front panel connecting bracket in the width direction, and the extension direction of the fourth weakening structural hole intersects with the extension direction of the first weakening structural hole.

3. The instrument panel crossbeam according to claim 1, characterized in that, The bottom wall of the front bulkhead connecting bracket is provided with a crumple groove, which is located on the side of the first weakened structural hole near the first crossbeam.

4. The instrument panel crossbeam according to claim 3, characterized in that, In the height direction of the front bulkhead connecting bracket, the crumple groove has a crumple inner wall, which is the inner wall of the crumple groove near the first weakened structural hole. In the height direction of the front bulkhead connecting bracket, the crumple inner wall is inclined from the bottom of the crumple groove toward the direction near the first weakened structural hole.

5. The instrument panel crossbeam according to claim 1, characterized in that, The instrument panel crossbeam also includes a bending member that extends from the end of the front bulkhead connecting bracket away from the first crossbeam in the height direction of the front bulkhead connecting bracket in a direction away from the ground.

6. The instrument panel crossbeam according to claim 1, characterized in that, The instrument panel crossbeam also includes a second crossbeam, a fixed bracket, a first support bracket, and a second support bracket. The second crossbeam is connected to the first crossbeam through the fixed bracket. Both ends of the first support bracket are connected to the first crossbeam and the fixed bracket, respectively. Both ends of the second support bracket are connected to the second crossbeam and the fixed bracket, respectively.

7. The instrument panel crossbeam according to claim 6, characterized in that, The instrument panel crossbeam further includes a left overlapping bracket, a right overlapping bracket, a third support bracket, and a fourth support bracket. The left overlapping bracket is connected to the end of the first crossbeam away from the fixed bracket. The two ends of the third support bracket are respectively connected to the first crossbeam and the left overlapping bracket. The right overlapping bracket is connected to the end of the second crossbeam away from the fixed bracket. The two ends of the fourth support bracket are respectively connected to the second crossbeam and the right overlapping bracket.

8. The instrument panel crossbeam according to claim 7, characterized in that, The left lap bracket includes a left front support and a left rear support that are spaced apart. The wall thickness H1 of the left front support has a range of 1mm ≤ H1 ≤ 2.5mm, and the wall thickness H2 of the left rear support has a range of 1mm ≤ H2 ≤ 2.5mm.

9. The instrument panel crossbeam according to claim 7, characterized in that, The instrument panel crossbeam also includes an end cap, the left overlapping bracket has a connecting cavity, the outer wall of the connecting cavity is connected to the first crossbeam, and in the height direction of the connecting cavity, both opposite ends of the connecting cavity have openings, and the end cap seals the openings.

10. A vehicle, characterized in that, The vehicle includes a dashboard crossbeam according to any one of claims 1-9.

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