Cabin cross beam structure and electric automobile

Abstract

The invention belongs to the technical field of automobile accessories, and discloses a cabin cross beam structure and an electric automobile. The cross beam body is arranged in a cabin of the automobile, and the two ends of the cross beam body are connected with two damping towers in the cabin respectively. The number of the reinforcing assemblies is at least one, and each reinforcing assembly comprises a first reinforcing beam and a second reinforcing beam. One end of the first reinforcing beam and one end of the second reinforcing beam are connected with the cross beam body, the other end of the first reinforcing beam and the other end of the second reinforcing beam are connected with a front wall of an automobile body, and the first reinforcing beam and the second reinforcing beam obliquely extend along the sides close to each other. By using the cabin cross beam structure for the electric automobile, the single-side collision impact force of the automobile can be uniformly dispersed, load concentration is avoided, crushing of a single-side structure is prevented, and the safety performance of the automobile is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile accessories, in particular to a machine cabin beam structure and an electric vehicle. BACKGROUND

[0002] The machine cabin beam generally refers to a beam connected to the top of two shock absorbers in the machine cabin of an automobile, and is a key component in the vehicle body structure. By connecting the two shock absorbers through the machine cabin beam, a closed force transmission frame can be formed, which effectively suppresses the torsional deformation of the vehicle body and improves the handling stability and the stiffness of the vehicle body.

[0003] In the prior art, the machine cabin beam is usually a long strip-shaped beam extending in the horizontal direction, and the two ends of the long strip-shaped beam are respectively connected to the shock towers on the left and right sides in the machine cabin of the automobile. Although the use of the above type of long strip-shaped beam to connect the two shock towers can enhance the stiffness of the vehicle body, when the vehicle body is subjected to a single-sided offset collision, most of the impact force is borne by the beam segment on the side of the collision, and the transmission and dispersion effect of the impact force is poor, which easily causes load concentration, so that the single-sided structure bears most of the impact force, and in severe cases, the single-sided structure can be crushed, the passenger compartment can rotate and intrude, and the safety performance of the automobile is poor. SUMMARY

[0004] The purpose of the present application is to provide a machine cabin beam structure and an electric vehicle, which can uniformly disperse the single-sided collision impact force of the automobile, avoid load concentration, prevent the single-sided structure from being crushed, and improve the safety performance of the automobile.

[0005] To achieve the above purpose, the present application adopts the following technical solutions:

[0006] In a first aspect, a machine cabin beam structure is provided, comprising:

[0007] a beam main body configured to be arranged in the machine cabin of an automobile, and two ends of the beam main body are respectively connected to two shock towers in the machine cabin;

[0008] at least one reinforcing assembly, the reinforcing assembly comprising a first reinforcing beam and a second reinforcing beam, one end of each of the first reinforcing beam and the second reinforcing beam being connected to the beam main body, the other end of each of the first reinforcing beam and the second reinforcing beam being connected to the front wall of the vehicle body, and each of the first reinforcing beam and the second reinforcing beam extending obliquely along the side closer to each other.

[0009] Optionally, the first reinforcing beam is connected to a first point of the front wall of the vehicle body, the second reinforcing beam is connected to a second point of the front wall of the vehicle body, the first point and the second point are arranged at intervals, and the first reinforcing beam and the second reinforcing beam do not intersect.

[0010] Optionally, the first reinforcing beam and the second reinforcing beam are both inclined to extend along a side close to each other and cross and connect each other, one end of the first reinforcing beam away from the cross beam body is connected with a fourth point of the car body front wall, one end of the second reinforcing beam away from the cross beam body is connected with a fifth point of the car body front wall, the fourth point and the fifth point are arranged at intervals, and the first reinforcing beam, the second reinforcing beam and the cross beam body form a support truss.

[0011] Optionally, the first reinforcing beam and the second reinforcing beam are both inclined to extend along a side close to each other and cross and connect each other, one end of the first reinforcing beam away from the cross beam body is connected with a fourth point of the car body front wall, one end of the second reinforcing beam away from the cross beam body is connected with a fifth point of the car body front wall, the fourth point and the fifth point are arranged at intervals, and the first reinforcing beam, the second reinforcing beam and the cross beam body form a support truss.

[0012] Optionally, the nacelle cross beam structure further comprises a fastening insert, both ends of the cross beam body are provided with a connecting hole, the fastening insert penetrates the connecting hole and is screwed on the shock tower.

[0013] Optionally, the connecting hole comprises a countersunk slot hole, and the upper end of the fastening insert is embedded in the countersunk slot hole.

[0014] Optionally, the nacelle cross beam structure further comprises a gasket, the gasket is sleeved on the fastening insert, and the gasket is clamped between the fastening insert and the cross beam body.

[0015] Optionally, the nacelle cross beam structure further comprises a plurality of first mounting supports, a plurality of the first mounting supports are arranged at intervals on the cross beam body and extend in a direction perpendicular to the cross beam body, and are configured to mount parts of the automobile.

[0016] Optionally, the nacelle cross beam structure further comprises a plurality of second mounting supports, a plurality of the second mounting supports are arranged on the first reinforcing beam and / or the second reinforcing beam, and the second mounting supports extend in a horizontal direction and are configured to mount parts of the automobile.

[0017] In a second aspect, an electric vehicle is provided, comprising a vehicle body, a plurality of running wheels and the nacelle cross beam structure as described above, the plurality of running wheels are arranged on both sides of the vehicle body, and the nacelle cross beam structure is arranged in the nacelle of the vehicle body.

[0018] The beneficial effects of the present application are as follows:

[0019] The application provides a kind of cabin beam structure and electric vehicle, including beam body and reinforcing assembly.When the car is impacted by the object on the left side of the car body, the left side shock tower is first impacted by the force of the object, and the left side shock tower can absorb part of the impact force, and the impact force that is not absorbed will be conducted along the beam body, and since the first reinforcing beam and the second reinforcing beam are connected between the beam body and the front wall of the car body, part of the impact force on the beam body will be conducted to the front wall of the car body in the form of axial tension and compression through the first reinforcing beam close to the left side shock tower, and the other part will continue to be conducted along the beam body to the right side shock tower, and the impact force conducted to the front wall of the car body will be conducted to the second reinforcing beam close to the right side shock tower, and the second reinforcing beam will bear the pressure from the front wall of the car body, then the second reinforcing beam will conduct the pressure received to the beam body, and finally the beam body will conduct the pressure to the right side shock tower, and similarly, when the car is impacted by the object on the right side of the car body, the impact force is similar to the above-mentioned content.When the car is frontally impacted, the impact force is perpendicular to the direction of the beam body, at this time, the first reinforcing beam and the second reinforcing beam can provide oblique support to the beam body, improve the bending resistance of the beam body, greatly enhance the torsional stiffness of the cabin, and the first reinforcing beam and the second reinforcing beam can also conduct the impact force obliquely to the beam body, and then conduct the impact force to the two shock towers by the beam body.

[0020] By arranging the first reinforcing beam and the second reinforcing beam between the beam body and the front wall of the car body, not only can the beam body be provided with oblique support to improve the bending resistance of the beam body and enhance the torsional stiffness of the cabin, but also can provide multiple conducting paths for the impact force received by the car, so that the unilateral collision impact force of the car can be evenly dispersed, the load concentration phenomenon can be avoided, the unilateral structure can be prevented from being crushed, and the safety performance of the car can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the cabin beam structure provided by the embodiment of the application.

[0022] In the drawings:

[0023] 1, beam body;

[0024] 2, reinforcing assembly; 21, first reinforcing beam; 22, second reinforcing beam;

[0025] 3, first mounting bracket;

[0026] 4, fastening insert. DETAILED DESCRIPTION

[0027] The application will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely exemplary of the application and that the application is not limited to such exemplary embodiments. It should also be understood that, in the description of the embodiments, the terms "upper", "lower", "left", "right", and the like are used for convenience and are not intended to be limiting.

[0028] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise explicitly specified and limited, "on" or "under" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature of the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0030] In the description of the embodiments, the terms "upper", "lower", "left", "right" and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] Embodiment one

[0032] The present embodiment provides a cabin beam structure, as shown in Figure 1 Using the cabin beam structure, the single-sided impact force of the automobile can be uniformly dispersed, the load concentration can be avoided, the single-sided structure can be prevented from being crushed, and the safety performance of the automobile can be improved.

[0033] As shown in Figure 1As shown, the cabin beam structure comprises a beam body 1 and a reinforcing assembly 2. The beam body 1 is configured to be arranged in the cabin of the automobile, and the two ends of the beam body 1 are connected with two shock towers in the cabin respectively. The reinforcing assembly 2 is provided with at least one reinforcing assembly 2, which comprises a first reinforcing beam 21 and a second reinforcing beam 22. One end of each of the first reinforcing beam 21 and the second reinforcing beam 22 is connected with the beam body 1, and the other end of each of the first reinforcing beam 21 and the second reinforcing beam 22 is connected with the front wall of the automobile body. The first reinforcing beam 21 and the second reinforcing beam 22 are inclined to extend along the side close to each other.

[0034] When the automobile is impacted by an external object on the left side of the automobile body, the left shock tower is first impacted by the impact force of the external object. The left shock tower can absorb part of the impact force, and the impact force that is not absorbed will be conducted along the beam body 1. Since the first reinforcing beam 21 and the second reinforcing beam 22 are connected between the beam body 1 and the front wall of the automobile body, part of the impact force on the beam body 1 will be obliquely conducted to the front wall of the automobile body in the form of axial tension and compression through the first reinforcing beam 21 close to the left shock tower. Another part of the impact force will continue to be conducted along the beam body 1 to the right shock tower. The impact force conducted to the front wall of the automobile body will be conducted to the second reinforcing beam 22 close to the right shock tower. The second reinforcing beam 22 will bear the pressure from the front wall of the automobile body. Then the second reinforcing beam 22 will conduct the pressure to the beam body 1, and finally the beam body 1 will conduct the pressure to the right shock tower. Similarly, when the automobile is impacted by an external object on the right side of the automobile body, the impact force is similar to the above. When the automobile is frontally impacted, the direction of the impact force is perpendicular to the direction of the beam body 1. At this time, the first reinforcing beam 21 and the second reinforcing beam 22 can provide oblique support to the beam body 1, improve the bending resistance of the beam body 1, greatly enhance the torsional stiffness of the cabin, and the first reinforcing beam 21 and the second reinforcing beam 22 can also obliquely conduct the impact force to the beam body 1, and then conduct the impact force to the two shock towers through the beam body 1.

[0035] By arranging the first reinforcing beam 21 and the second reinforcing beam 22 between the beam body 1 and the front wall of the automobile body, not only can the first reinforcing beam 21 and the second reinforcing beam 22 provide oblique support to the beam body 1, improve the bending resistance of the beam body 1, and enhance the torsional stiffness of the cabin, but also can provide multiple conducting paths for the impact force of the automobile, so that the unilateral collision impact force of the automobile can be evenly dispersed, the load concentration phenomenon can be avoided, the unilateral structure can be prevented from being crushed, and the safety performance of the automobile can be improved.

[0036] Exemplarily, one reinforcing assembly 2 is arranged.

[0037] In other embodiments, other numbers of reinforcing assemblies 2 can also be arranged according to actual needs, which are not limited herein.

[0038] In the embodiment, the first reinforcing beam 21 is connected to a first point of the vehicle body front wall, and the second reinforcing beam 22 is connected to a second point of the vehicle body front wall. The first point and the second point are arranged at intervals, and the first reinforcing beam 21 and the second reinforcing beam 22 do not intersect. Therefore, the first reinforcing beam 21 and the second reinforcing beam 22 are arranged in an eight-shaped manner between the cross beam main body 1 and the vehicle body front wall, can provide a diagonal supporting effect for the cross beam main body 1, improve the bending resistance of the cross beam main body 1, enhance the torsional stiffness of the engine compartment, and can provide multiple conduction paths for the impact force received by the automobile, which is conducive to the uniform dispersion of the impact force and the improvement of the safety performance of the automobile.

[0039] In some embodiments, the end of the first reinforcing beam 21 away from the cross beam main body 1 and the end of the second reinforcing beam 22 away from the cross beam main body 1 intersect at a third point of the vehicle body front wall, and the first reinforcing beam 21, the second reinforcing beam 22 and the cross beam main body 1 form a triangular supporting frame. In this embodiment, the first reinforcing beam 21 and the second reinforcing beam 22 intersect at the third point of the vehicle body front wall, so that the triangular supporting frame is a complete sealed triangular supporting frame, thereby forming a stable triangular force conduction path, which can further improve the overall stability of the structure, strengthen the torsional stiffness of the engine compartment, and further optimize the force conduction mode, uniformly disperse the load to the main structure of the vehicle body, so that the bending moment received by the cross beam main body 1 is greatly reduced, and the main role is changed from the load-bearing beam to a member of the stable structure. The rigidity of the entire system is no longer dependent on the bending strength of the cross beam itself, and the overall rigidity of the structure is enhanced.

[0040] In other embodiments, the first reinforcing beam 21 and the second reinforcing beam 22 are both inclined to extend along the side close to each other and intersected and connected, the end of the first reinforcing beam 21 away from the cross beam main body 1 is connected to a fourth point of the vehicle body front wall, and the end of the second reinforcing beam 22 away from the cross beam main body 1 is connected to a fifth point of the vehicle body front wall. The fourth point and the fifth point are arranged at intervals, and the first reinforcing beam 21, the second reinforcing beam 22 and the cross beam main body 1 form a supporting truss. Therefore, the supporting truss is an X-shaped intersecting truss, and at this time the cross beam main body 1, the first reinforcing beam 21, the second reinforcing beam 22 and the vehicle body front wall form two complete sealed triangles. When the impact force is conducted to the cross beam main body 1, the impact force has multiple conduction paths and can be efficiently and uniformly dispersed, so that the large impact force is divided into multiple small forces and acts on each part of the structure, the supporting truss can efficiently disperse the load to the entire structure, and the stability and rigidity of the structure are greatly improved to the extreme.

[0041] Optionally, as Figure 1As shown, the cabin beam structure further comprises fastening inserts 4. The beam body 1 is provided with connecting holes at both ends, and the fastening inserts 4 penetrate the connecting holes and are screwed on the shock towers. When installing the beam body 1, only need to place the two ends of the beam body 1 on the two shock towers respectively, and then penetrate the connecting holes of the beam body 1 with the fastening inserts 4 and screw them on the shock towers, the structure is simple, easy to operate and easy to install and disassemble.

[0042] In this embodiment, the beam body 1 is provided with 2 connecting holes at either end, i.e. 4 connecting holes in total, and 4 fastening inserts 4 are correspondingly provided.

[0043] In other embodiments, other numbers of connecting holes and fastening inserts 4 can also be provided according to actual needs.

[0044] Exemplarily, the fastening inserts 4 comprise hexagonal bolts.

[0045] Optionally, the connecting holes comprise countersunk slot holes, and the upper ends of the fastening inserts 4 are embedded in the countersunk slot holes. When installing the beam body 1, the fastening inserts 4 penetrate the countersunk slot holes and are screwed on the shock towers, and the upper ends of the fastening inserts 4 are embedded in the countersunk slot holes. By providing the countersunk slot holes, the fastening inserts 4 are completely embedded in the beam body 1, so that the upper surface of the beam body 1 is flat, avoiding interference with the installation of other components, and also increasing the contact area between the fastening inserts 4 and the beam body 1, providing better connection stability, and being able to disperse the load when the beam body 1 is stressed, reducing local stress concentration, thereby protecting the material and prolonging the service life.

[0046] Optionally, the cabin beam structure further comprises a gasket. The gasket is sleeved on the fastening insert 4, and the gasket is clamped between the fastening insert 4 and the beam body 1. By providing the gasket, the contact area between the fastening insert 4 and the beam body 1 can be increased, thereby reducing the pressure of the fastening insert 4 on the beam body 1, and the pressure of the fastening insert 4 can be evenly dispersed, improving stress distribution and improving the reliability of the connection. In addition, the beam body 1 can also be protected from being scratched and worn by the fastening insert 4.

[0047] As Figure 1As shown, the cabin beam structure further comprises a plurality of first mounting supports 3. The plurality of first mounting supports are arranged on the beam body 1 in a direction perpendicular to the beam body 1, and the first mounting supports 3 extend in the direction perpendicular to the beam body 1. The first mounting supports 3 are provided with mounting holes one, which are configured to mount parts of the automobile. When mounting the parts of the automobile, the parts to be mounted can be arranged above or below the first mounting supports 3, and then the connecting bolts are used to penetrate the parts and the mounting holes one, and the nuts are screwed to achieve the mounting. The structure is simple and convenient to operate. By arranging the first mounting supports 3 extending in the direction perpendicular to the beam body 1, the mounting basis for the parts of the automobile is provided, so that a plurality of parts can be integrated and mounted on the beam body 1, thereby releasing the mounting space of the automobile cabin, meeting the requirements of two-wheel drive and four-wheel drive compatible arrangement and generalization rate, realizing rich configuration loading, and meeting the requirements of multiple structure arrangements.

[0048] Optionally, the cabin beam structure further comprises a plurality of second mounting supports. The plurality of second mounting supports can be arranged on the first reinforcing beam 21, or on the second reinforcing beam 22, or on both the first reinforcing beam 21 and the second reinforcing beam 22. The second mounting supports extend in a horizontal direction. The second mounting supports are provided with mounting holes two, which are configured to mount parts of the automobile. When mounting the parts of the automobile, the parts to be mounted can be arranged above or below the second mounting supports, and then the connecting bolts are used to penetrate the parts and the mounting holes two, and the nuts are screwed to achieve the mounting. The structure is simple and convenient to operate. By arranging the second mounting supports, more mounting bases for the parts of the automobile are provided, which is beneficial to the flexible arrangement of the automobile parts and further reasonably utilizes the mounting space of the cabin.

[0049] It should be noted that the heat management integrated module, the liquid storage tank, the wiper support, the water tank water guide plate, the low-voltage wire harness, the cabin storage box, the water tank cover plate and other parts can be mounted on the first mounting supports 3 or the second mounting supports.

[0050] Embodiment two

[0051] The embodiment provides an electric automobile, which comprises a vehicle body, a plurality of walking wheels and the cabin beam structure of the embodiment one. The plurality of walking wheels are arranged on both sides of the vehicle body, and the cabin beam structure is arranged in the cabin of the vehicle body. The use of the cabin beam structure can evenly disperse the single-side collision impact force of the automobile, avoid load concentration, prevent single-side structure from being crushed, and improve the safety performance of the automobile.

[0052] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A cabin crossbeam structure, characterized in that, include: A crossbeam body (1) is configured to be installed in the engine compartment of a car, and both ends of the crossbeam body (1) are respectively connected to two shock absorber towers in the engine compartment; The reinforcement component (2) is provided with at least one, the reinforcement component (2) includes a first reinforcement beam (21) and a second reinforcement beam (22), one end of the first reinforcement beam (21) and the second reinforcement beam (22) are connected to the main body of the crossbeam (1), and the other end of the first reinforcement beam (21) and the second reinforcement beam (22) are connected to the front body of the vehicle, and the first reinforcement beam (21) and the second reinforcement beam (22) extend obliquely along the side close to each other.

2. The cabin beam structure according to claim 1, characterized in that, The first reinforcing beam (21) is connected to a first point of the front of the vehicle body, and the second reinforcing beam (22) is connected to a second point of the front of the vehicle body. The first point and the second point are spaced apart, and the first reinforcing beam (21) and the second reinforcing beam (22) do not intersect.

3. The cabin beam structure according to claim 1, characterized in that, The first reinforcing beam (21) and the second reinforcing beam (22) intersect at the third point of the front of the vehicle body at one end away from the main body of the crossbeam (1). The first reinforcing beam (21), the second reinforcing beam (22) and the main body of the crossbeam (1) form a triangular support frame.

4. The cabin beam structure according to claim 1, characterized in that, The first reinforcing beam (21) and the second reinforcing beam (22) both extend obliquely along the side closest to each other and are connected to each other. The end of the first reinforcing beam (21) away from the main body of the crossbeam (1) is connected to the fourth point of the front of the vehicle body, and the end of the second reinforcing beam (22) away from the main body of the crossbeam (1) is connected to the fifth point of the front of the vehicle body. The fourth point and the fifth point are spaced apart. The first reinforcing beam (21), the second reinforcing beam (22) and the main body of the crossbeam (1) form a supporting truss.

5. The cabin beam structure according to any one of claims 1-4, characterized in that, The cabin beam structure also includes a fastening insert (4). Both ends of the beam body (1) are provided with connection holes. The fastening insert (4) passes through the connection holes and is screwed onto the shock absorber tower.

6. The cabin beam structure according to claim 5, characterized in that, The connecting hole includes a countersunk groove, and the upper end of the fastening plug (4) is embedded in the countersunk groove.

7. The cabin beam structure according to claim 5, characterized in that, The cabin beam structure also includes a washer, which is fitted onto the fastening insert (4) and sandwiched between the fastening insert (4) and the beam body (1).

8. The cabin beam structure according to any one of claims 1-4, characterized in that, The cabin crossbeam structure also includes a plurality of first mounting brackets (3), which are spaced apart on the crossbeam body (1). The first mounting brackets (3) extend in a direction perpendicular to the crossbeam body (1). The first mounting brackets (3) are provided with mounting holes and are configured to install the components of the vehicle.

9. The cabin beam structure according to any one of claims 1-4, characterized in that, The cabin beam structure also includes a plurality of second mounting brackets, which are disposed on the first reinforcing beam (21) and / or the second reinforcing beam (22). The second mounting brackets extend in a horizontal direction and are provided with mounting holes for mounting the components of the vehicle.

10. An electric vehicle, characterized in that, The vehicle includes a vehicle body, multiple wheels, and a cabin beam structure as described in any one of claims 1-9, wherein the multiple wheels are disposed on both sides of the vehicle body, and the cabin beam structure is disposed inside the cabin of the vehicle body.

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