Vehicle body front structure and vehicle

Abstract

The utility model relates to the technical field of vehicle body structures, and discloses a vehicle body front structure and a vehicle. The vehicle body front structure comprises a tower bag, a firewall, an upper cross beam, an A column assembly and a reinforcing structure; the two tower bags are oppositely arranged in the width direction of the vehicle body; the firewall is arranged on the front side of the tower ladle; the upper cross beam is arranged on the upper side of the firewall and extends in the width direction of the vehicle body; the A column assembly is arranged on the outer side of the tower bag, and the end part of the upper cross beam is connected with the A column assembly; the reinforcing structure is arranged on the inner side of the A column assembly and comprises longitudinal ribs, vertical ribs and inclined ribs, the longitudinal ribs are arranged on the upper side of the tower bag at intervals, and the longitudinal ribs extend in the length direction of the vehicle body and are connected with the upper cross beam; the vertical ribs are arranged at the top of the tower bag and connected with the ends, away from the upper cross beams, of the longitudinal ribs; the inclined ribs are located between the longitudinal ribs and the tower bag and connected with the upper cross beam and the top of the tower bag. Through cooperative force transmission of the reinforcing structure, the tower package and the A column assembly, force flow is transmitted in a dispersed mode, the load peak value borne by the firewall independently is reduced, and the purpose of effective dissipation of collision loads is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle body structure, and in particular to a vehicle body front structure and a vehicle. BACKGROUND

[0002] The short front suspension design refers to a short horizontal distance from the center of the front wheel of the vehicle to the front end of the vehicle head, which brings a more dynamic and more compact modeling effect of the vehicle. However, due to the fact that the front collapse area is greatly compressed, it is difficult to ensure effective absorption and dispersion of impact energy in a frontal collision.

[0003] On a short front suspension vehicle, the collision force is transmitted to the firewall at the front end of the passenger compartment in a very short time, and the intrusion amount of the firewall directly determines the integrity of the passenger compartment. If the intrusion is too large, it will cause the steering column to move backward, the pedal to move backward, and the foot space to be squeezed, which seriously affects the survival space of the driver and the front passengers. On the contrary, if the strength of the longitudinal beam and the firewall is increased by strengthening means, the front part of the vehicle body will be too rigid, the collision energy absorption efficiency will be poor, and the weight of the vehicle body will be increased, which is not conducive to lightweight design.

[0004] In summary, in the short front suspension design, the front part of the vehicle body does not have enough collapse length to fully absorb energy when a collision occurs, and the collision energy transmitted to the firewall is easy to cause intrusion. The firewall becomes a weak node for the safety of the passenger compartment. Simply increasing the strength of the firewall cannot effectively absorb the collision energy, and cannot simultaneously ensure the safety of the passenger compartment and effectively dissipate the collision energy. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a vehicle body front structure and a vehicle, which solves the problem that in the short front suspension design, the front part of the vehicle body does not have enough collapse length to fully absorb energy when a collision occurs, and the collision energy transmitted to the firewall is easy to cause intrusion. Simply increasing the strength of the firewall cannot effectively absorb the collision energy, and cannot simultaneously ensure the safety of the passenger compartment and effectively dissipate the collision energy.

[0006] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the present application comprises:

[0007] In a first aspect, the present application provides a vehicle body front structure, comprising:

[0008] Two towers are provided opposite each other in the vehicle body width direction;

[0009] A firewall is provided on the front side of the tower;

[0010] An upper cross beam is provided on the upper side of the firewall, and the upper cross beam extends in the vehicle body width direction;

[0011] An A-pillar assembly is provided on the outer side of the tower, and the end of the upper cross beam is connected to the A-pillar assembly;

[0012] The reinforcing structure is arranged on the inner side of the A-pillar assembly, and comprises longitudinal bars, vertical bars and diagonal bars. The longitudinal bars are arranged on the upper side of the tower package at intervals, extend along the length direction of the vehicle body and are connected to the upper cross beam. The vertical bars are arranged on the top of the tower package and are connected to the ends of the longitudinal bars away from the upper cross beam. The diagonal bars are arranged between the longitudinal bars and the tower package, and connect the upper cross beam and the top of the tower package.

[0013] The vehicle body front structure according to the embodiments of the present application adopts the design form of a tower package, a firewall, an upper cross beam, an A-pillar assembly and a reinforcing structure. Two tower packages are arranged in the width direction of the vehicle body, the firewall is arranged on the front side of the tower package, and the reinforcing structure is arranged on the inner side of the A-pillar assembly. The upper cross beam is arranged on the upper side of the firewall and extends in the width direction of the vehicle body, and forms a three-dimensional frame with the reinforcing structure and the A-pillar assembly to protect the firewall. The upper cross beam bears the collision load acting on the firewall.

[0014] The reinforcing structure is arranged on the inner side of the A-pillar assembly, and comprises longitudinal bars, vertical bars and diagonal bars. The longitudinal bars are arranged on the upper side of the tower package at intervals, extend along the length direction of the vehicle body and are connected to the upper cross beam. The vertical bars are arranged on the top of the tower package and are connected to the ends of the longitudinal bars away from the upper cross beam. The diagonal bars are arranged between the longitudinal bars and the tower package, and connect the upper cross beam and the top of the tower package.

[0015] The A-pillar assembly, as a main structure of the side wall, bears the force from the upper cross beam and the reinforcing structure. The tower package is arranged at both ends of the front side of the passenger compartment in the width direction of the vehicle body, and is formed of a high-strength steel plate. The tower package not only supports the firewall, but also provides a connection basis for the vertical bars and the diagonal bars of the reinforcing structure. The tower package, as a main bearing point of the impact force, guides the impact force from the front to the A-pillar assembly and the rocker beam through the tower package.

[0016] The tower package and the A-pillar assembly form parallel force transmission channels. A main force transmission path is formed from the upper cross beam to the reinforcing structure and the tower package in sequence, and an auxiliary force transmission path is formed from the upper cross beam to the upper part of the reinforcing structure and the A-pillar assembly in sequence. The collision load is divided into two force transmission paths: one is the main force transmission path, which is transmitted downward to the rocker beam, and the other is the auxiliary force transmission path, which is transmitted upward to the upper part of the A-pillar assembly, thereby dispersing and absorbing energy in the vehicle body structure.

[0017] The reinforcing structure is a force flow distribution node, which disperses the collision load to the body structure such as the tower package and the A-pillar assembly, effectively reduces the intrusion of the firewall, controls the rearward displacement of the components such as the pedal and the steering column behind the firewall within a safe range, and ensures the integrity and safety of the passenger compartment space. Through the force transmission of the reinforcing structure, the tower package and the A-pillar assembly, the force flow is dispersed and transmitted, the peak load borne by the firewall is significantly reduced, stress concentration on a single component is avoided, and the purpose of effective dissipation of the collision load is achieved.

[0018] Optionally, the upper cross beam is arranged at the front side of the tower package, and the reinforcing structure further comprises a diagonal reinforcing plate connected to the upper cross beam and the top of the tower package, and the diagonal rib is arranged on the diagonal reinforcing plate.

[0019] In the above scheme, the diagonal reinforcing plate has a continuous high-rigidity force transmission slope, and the diagonal reinforcing plate and the diagonal rib reinforce each other, ensuring that the force flow is stably and reliably transmitted to the tower package. The collision force from the front is transmitted to the diagonal reinforcing plate through the upper cross beam, and the force is more directly transmitted to the tower package, ensuring that the path of the collision load transmitted downward to the rocker beam is shorter and more efficient.

[0020] Optionally, the firewall is arranged at the inner side of the A-pillar assembly, and the diagonal reinforcing plate is connected to the firewall and the A-pillar assembly.

[0021] In the above scheme, the diagonal reinforcing plate integrates the outer side region of the firewall, the inner side region of the A-pillar assembly, the front side region of the tower package, and the upper cross beam into a reinforcing area, and the diagonal reinforcing plate connects the firewall and the A-pillar assembly, which is equivalent to connecting the firewall to the solid A-pillar assembly. The firewall no longer relies on its own panel strength and edge connection to resist intrusion, and the collision impact force acting on the firewall will be directly transmitted to the A-pillar assembly through the diagonal reinforcing plate in the shortest path, effectively inhibiting the intrusion deformation of the firewall, and further ensuring the foot and leg space of the driver and the front-row passengers.

[0022] Optionally, the longitudinal rib comprises a longitudinal rib body and a first flange, the first flange is arranged at the edge of the longitudinal rib body, the longitudinal rib body abuts against the upper cross beam, and the longitudinal rib is connected to the A-pillar assembly and the vertical rib through the first flange.

[0023] Optionally, the vertical rib comprises a vertical rib body and a second flange, the second flange is arranged at the edge of the vertical rib body, the vertical rib body abuts against the top of the tower package, and the vertical rib is connected to the A-pillar assembly through the second flange.

[0024] Optionally, the oblique rib comprises an oblique rib body and a third flange, the third flange is arranged at the edge of the oblique rib body, the oblique rib body abuts against the upper cross beam, and the oblique rib is connected with the top of the tower package, the A column assembly and the oblique reinforcing plate through the third flange.

[0025] Optionally, the A column assembly comprises an A column quarter window and an A column, the A column is arranged at the outer side of the tower package, the A column quarter window is arranged at the upper side of the A column, and the reinforcing structure is arranged at the upper inner side of the A column.

[0026] Optionally, the front structure of the vehicle body further comprises a lower cross beam and a support vertical beam, the lower cross beam is arranged at the lower side of the firewall, and the lower cross beam extends along the vehicle body width direction; the support vertical beam is arranged at the inner side of the firewall, and the support vertical beam connects the upper cross beam and the lower cross beam.

[0027] In the above scheme, the upper cross beam, the lower cross beam, the tower package, the A column assembly and the reinforcing structure constitute an overall frame, and the support vertical beam is connected between the upper cross beam and the lower cross beam, which is equivalent to partitioning and reinforcing the inside of the firewall, thereby enhancing the in-plane stiffness and buckling resistance of the overall frame, and ensuring the ability of the firewall to resist deformation. The force received by the firewall in the plane can be dispersed and transmitted to the upper cross beam and the lower cross beam through the support vertical beam, and the force received by the lower cross beam is further transmitted to the longitudinal beam to dissipate energy.

[0028] Optionally, the firewall comprises a front panel, a bottom plate and two side plates, the two side plates are symmetrically arranged at the two sides of the front panel in the vehicle body width direction, and the side plates are connected with the side walls of the tower package; the bottom plate is arranged at the lower side of the front panel, and the bottom plate is connected with the lower cross beam.

[0029] In the above scheme, the front panel of the firewall serves as the main force receiving surface, the bottom plate serves as the bottom support part, and the side plate serves as the lateral support wing. The originally flat firewall is optimized into a box structure, thereby improving the in-plane stiffness and bending stiffness of the firewall and fundamentally changing the properties of the weak nodes. The lateral path, the bottom path and the force transmission path of the A column assembly are combined to form a front protection system that surrounds the passenger compartment in all directions, thereby achieving the purpose of multi-channel dissipation of load.

[0030] In a second aspect, the embodiments of the present application provide a vehicle comprising the front structure of the vehicle body according to any one of the embodiments. The vehicle provided by the embodiments of the present application at least partly improves the problem that the front part of the vehicle body does not have sufficient collapse length to fully absorb energy, and the collision energy that is not fully dissipated is transmitted to the firewall, which is easy to cause the firewall to intrude, thereby threatening the foot and lower limb space of the passenger, and simply increasing the strength of the firewall cannot effectively absorb the collision energy and cannot guarantee the safety of the passenger compartment and effectively dissipate the collision energy. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification are illustrated in which:

[0032] Figure 1 A perspective view of a front portion structure of a vehicle body (first view) according to an embodiment of the present application;

[0033] Figure 2 A perspective view of a front portion structure of a vehicle body (second view) according to an embodiment of the present application;

[0034] Figure 3 An axial cross-sectional view of a front portion structure of a vehicle body according to an embodiment of the present application.

[0035]

BRIEF DESCRIPTION OF DRAWINGS

[0036] 1. Tower package

[0037] 2. Firewall; 21. Front panel; 22. Side panel; 23. Bottom panel

[0038] 3. Upper cross member

[0039] 4. A-pillar assembly; 41. A-pillar quarter window; 42. A-pillar

[0040] 5. Reinforcing structure; 51. Longitudinal rib; 511. Longitudinal rib body; 512. First flange; 52. Vertical rib; 521. Vertical rib body; 522. Second flange; 53. Inclined rib; 531. Inclined rib body; 532. Third flange; 54. Inclined reinforcing plate

[0041] 6. Lower cross member

[0042] 7. Support vertical beam

[0043] 8. Longitudinal beam

[0044] X. Vehicle body length direction

[0045] Y. Vehicle body width direction DETAILED DESCRIPTION

[0046] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0047] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing specific embodiments of the present application and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application or the above description of drawings are used to distinguish different objects, rather than to describe a particular order or primary and secondary relationship.

[0048] In the present application, the term "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0049] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] The term "and / or" in the present application is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0051] "Multiple" appearing in the present application means two or more (including two), and similarly, "multiple groups" means two or more groups (including two groups), and "multiple pieces" means two or more pieces (including two pieces).

[0052] It should be noted that the short front suspension design does not have enough collapse length to fully absorb energy when the collision occurs, and the collision energy not fully dissipated is transmitted to the firewall, which is easy to cause the firewall to intrude, threatening the passenger foot and lower limb space, and the firewall becomes a weak node of the passenger compartment safety. Simply increasing the strength of the firewall cannot effectively absorb the collision energy and cannot guarantee the safety of the passenger compartment and effectively dissipate the collision energy.

[0053] Based on this, the embodiment of the present application proposes a vehicle body front structure, as shown in Figure 1 、 Figure 2 The vehicle body front structure includes: tower bags 1, a firewall 2, an upper cross beam 3, an A-pillar assembly 4, and a reinforcing structure 5. The tower bags 1 are oppositely arranged along the vehicle body width direction Y. The firewall 2 is arranged on the front side of the tower bag 1. The upper cross beam 3 is arranged on the upper side of the firewall 2 and extends along the vehicle body width direction Y. The A-pillar assembly 4 is arranged on the outer side of the tower bag 1, and the end of the upper cross beam 3 is connected with the A-pillar assembly 4.

[0054] In addition, the reinforcing structure 5 is arranged on the inner side of the A-pillar assembly 4, which includes longitudinal ribs 51, vertical ribs 52, and inclined ribs 53. The longitudinal ribs 51 are arranged on the upper side of the tower bag 1 at intervals, and extend along the vehicle body length direction X and are connected with the upper cross beam 3. The vertical ribs 52 are arranged on the top of the tower bag 1 and are connected with the end of the longitudinal rib 51 away from the upper cross beam 3. The inclined rib 53 is located between the longitudinal rib 51 and the tower bag 1, and connects the upper cross beam 3 and the top of the tower bag 1.

[0055] The vehicle body front structure adopts the design form of the tower bag 1, the firewall 2, the upper cross beam 3, the A-pillar assembly 4, and the reinforcing structure 5. Two tower bags 1 are arranged in the vehicle body width direction Y. The firewall 2 is arranged on the front side of the tower bag 1. The reinforcing structure 5 is arranged on the inner side of the A-pillar assembly 4. The upper cross beam 3 is arranged on the upper side of the firewall 2 and extends along the vehicle body width direction Y. It forms a three-dimensional frame with the reinforcing structure 5 and the A-pillar assembly 4 to protect the firewall 2, and the upper cross beam 3 bears the collision load acting on the firewall 2.

[0056] The reinforcing structure 5 is designed in a triangular shape on the inner side of the A-pillar assembly 4. The longitudinal rib 51, the vertical rib 52, and the inclined rib 53 together form a stable triangular support frame. The longitudinal rib 51 corresponds to the upper base of the triangular support frame, the vertical rib 52 corresponds to the vertical side of the triangular support frame, and provides sufficient vertical support stiffness. The inclined rib 53 corresponds to the inclined side of the triangular support frame, and can smoothly transmit the collision load downward to the tower bag 1.

[0057] The triangular support frame is a geometrically stable shape, located at both ends of the vehicle body width direction Y on the front side of the passenger compartment, improving the structural stiffness of the front part of the vehicle body, and can reliably bear the collision load without being easily deformed. When the collision force impacts, the reinforcing structure 5 can firmly resist the inward deformation of the firewall 2.

[0058] The A-pillar assembly 4, as the main side structure, bears the force from the upper crossbeam 3 and the reinforcing structure 5. The tower pack 1 is located at both ends of the front side of the passenger compartment in the Y direction of the vehicle width. It is made of high-strength steel plate. The tower pack 1 not only supports the firewall 2, but its top connecting surface also provides a connection base for the vertical ribs 52 and diagonal ribs 53 of the reinforcing structure 5. As the main point of impact force, the tower pack 1 can guide the frontal impact force to the A-pillar assembly 4 and the sill beam.

[0059] The tower pack 1 and A-pillar assembly 4 form parallel force transmission channels. The main force transmission path runs from the upper crossbeam 3 to the reinforcing structure 5 and then to the tower pack 1. An auxiliary force transmission path runs from the upper crossbeam 3 to the upper part of the reinforcing structure 5 and then to the upper part of the A-pillar assembly 4. This divides the collision load into two force transmission paths: first, the main force transmission path, which transmits downwards to the sill beam; and second, the auxiliary force transmission path, which transmits upwards to the upper part of the A-pillar assembly 4, thus dispersing and absorbing energy within the vehicle body structure.

[0060] Understandably, the reinforced structure 5, acting as a force distribution node, disperses the collision load to the vehicle body structure, including the tower pack 1 and A-pillar assembly 4, effectively reducing the intrusion of the firewall 2 and controlling the rearward displacement of components such as the pedals and steering column behind the firewall 2 within a safe range, thus ensuring the integrity and safety of the passenger compartment. Through the coordinated force transmission of the reinforced structure 5, tower pack 1, and A-pillar assembly 4, the force flow is dispersed, significantly reducing the peak load borne by the firewall 2 alone, avoiding stress concentration on a single component, and achieving effective dissipation of the collision load.

[0061] In some embodiments, such as Figure 2 As shown, the upper crossbeams 3 are spaced apart on the front side of the tower shroud 1. The reinforcing structure 5 also includes inclined reinforcing plates 54, which connect the upper crossbeams 3 and the top of the tower shroud 1, and inclined ribs 53 are provided on the inclined reinforcing plates 54. Furthermore, the firewalls 2 are spaced apart on the inner side of the A-pillar assembly 4, and the inclined reinforcing plates 54 connect the firewalls 2 and the A-pillar assembly 4.

[0062] As a plate-shaped structural component, the inclined reinforcing plate 54 has a continuous, high-rigidity force-transmitting inclined surface. The inclined reinforcing plate 54 and the inclined rib 53 reinforce each other, ensuring that the force flow is smoothly and reliably transmitted to the tower 1. The collision force from the front is transmitted to the inclined reinforcing plate 54 through the upper crossbeam 3, and then the force is transmitted more directly to the tower 1, ensuring that the collision load is transmitted downward to the sill beam through a shorter and more efficient path.

[0063] In addition, the upper cross beam 3 is connected to the top of the tower pack 1 and the inner side of the firewall 2 and the A-pillar assembly 4 by the oblique reinforcing plate 54, and the outer side area of the firewall 2, the inner side area of the A-pillar assembly 4, the front side area of the tower pack 1 and the upper cross beam 3 are integrated into a reinforced area. The oblique reinforcing plate 54 connects the firewall 2 and the A-pillar assembly 4, which is equivalent to connecting the firewall 2 to the solid A-pillar assembly 4, so that the firewall 2 is no longer dependent on its own panel strength and edge connection to resist intrusion, and the collision impact force acting on the firewall 2 will be directly transmitted to the A-pillar assembly 4 through the oblique reinforcing plate 54 in the shortest path, effectively inhibiting the intrusion deformation of the firewall 2 and further ensuring the foot and leg space of the driver and the front-row passengers.

[0064] As shown in Figure 3 The longitudinal rib 51 includes a longitudinal rib body 511 and a first flange 512, the first flange 512 is arranged at the edge of the longitudinal rib body 511, the longitudinal rib body 511 abuts against the upper cross beam 3, and the longitudinal rib 51 is connected to the A-pillar assembly 4 and the vertical rib 52 through the first flange 512. Specifically, the longitudinal rib 51 is an integral sheet metal part, the cross section of the longitudinal rib body 511 is U-shaped, the longitudinal rib 51 and the A-pillar assembly 4 form a longitudinal cavity, and the local strength is effectively strengthened; the first flange 512 is arranged outside the opening end of the U-shaped structure, the contact area between the first flange 512 and the A-pillar assembly 4 and the vertical rib 52 is large, and the force transmitted from the upper cross beam 3 to the rear can be reliably borne through the longitudinal rib 51 and its longitudinal cavity.

[0065] Correspondingly, the vertical rib 52 includes a vertical rib body 521 and a second flange 522, the second flange 522 is arranged at the edge of the vertical rib body 521, the vertical rib body 521 abuts against the top of the tower pack 1, and the vertical rib 52 is connected to the A-pillar assembly 4 through the second flange 522. Specifically, the vertical rib 52 is an integral sheet metal part, the cross section of the vertical rib body 521 is U-shaped, the vertical rib 52 and the A-pillar assembly 4 form a vertical cavity, and the support stiffness at this position is improved; the second flange 522 is arranged outside the opening end of the U-shaped structure, the contact area between the second flange 522 and the A-pillar assembly 4 is large, and a reliable force transmission channel is formed at the top of the tower pack 1 through the vertical rib 52 and its vertical cavity.

[0066] As a further preferred solution, the oblique rib 53 comprises an oblique rib body 531 and a third flange 532, the third flange 532 is arranged at the edge of the oblique rib body 531, the oblique rib body 531 abuts against the upper cross beam 3, and the oblique rib 53 is connected with the top of the tower package 1, the A-pillar assembly 4 and the oblique reinforcing plate 54 through the third flange 532. Specifically, the oblique rib 53 is an integral sheet metal part, the cross section of the oblique rib body 531 is U-shaped, the oblique rib 53 and the oblique reinforcing plate 54 form an oblique cavity, which improves the structural strength of the oblique force transmission component; the third flange 532 is arranged outside the opening end of the U-shaped, and the contact area between the third flange 532 and the oblique reinforcing plate 54 is large, and a more stable force transmission channel is formed between the upper cross beam 3 and the top of the tower package 1 through the oblique rib 53 and its oblique cavity.

[0067] In some embodiments, the A-pillar assembly 4 comprises a fixedly connected A-pillar quarter window 41 and an A-pillar 42, the A-pillar 42 is arranged at the outer side of the tower package 1, the A-pillar quarter window 41 is arranged at the upper side of the A-pillar 42, and the reinforcing structure 5 is arranged at the upper inner side of the A-pillar 42. In the vehicle body front structure, the A-pillar is located at the outer side of the tower package 1 and connected with the front wheel cover plate, and the A-pillar quarter window 41 is used for installing glass and providing a larger field of view. The A-pillar quarter window 41 is equivalent to a double A-pillar structure, which improves the structural strength of the upper part of the A-pillar assembly 4 and can reliably diffuse the collision load upward, and the A-pillar quarter window 41 and the reinforcing structure 5 form a synergistic force bearing architecture.

[0068] In some embodiments, as shown in Figure 3 the vehicle body front structure further comprises a lower cross beam 6 and a support vertical beam 7, the lower cross beam 6 is arranged at the lower side of the firewall 2 and extends along the vehicle body width direction Y, and the support vertical beam 7 is arranged at the inner side of the firewall 2, the support vertical beam 7 connects the upper cross beam 3 and the lower cross beam 6, and the lower cross beam 6 is connected with the longitudinal beam 8.

[0069] The overall frame is formed by the upper cross beam 3, the lower cross beam 6, the tower package 1, the A-pillar assembly 4 and the reinforcing structure 5, which ensures the overall structural stiffness of the firewall 2, and the support vertical beam 7 is connected between the upper cross beam 3 and the lower cross beam 6, which is equivalent to partitioning and reinforcing the inside of the firewall 2, thereby enhancing the in-plane stiffness and buckling resistance of the overall frame and ensuring the ability of the firewall 2 to resist deformation. The in-plane force of the firewall 2 is dispersed and transmitted to the upper cross beam 3 and the lower cross beam 6 through the support vertical beam 7, and the force received by the lower cross beam 6 is further transmitted to the longitudinal beam 8 to dissipate energy.

[0070] As a further preferred solution, the support uprights 7 are provided in two or more, the two or more support uprights 7 being spaced apart along the vehicle body width direction Y, for example: one support upright 7 is arranged opposite the driver's seat, and the other support upright 7 is arranged opposite the front passenger seat, so as to focus on protecting the structural safety of the foot and leg areas of the driver and the front passenger. In some embodiments, in order to meet different use requirements, the support uprights 7 can be involved in only one, and one support upright 7 is located in the middle of the firewall 2 in the vehicle body width direction Y, which can also ensure the ability of the entire firewall 2 to resist deformation under intrusion.

[0071] In addition, the firewall 2 includes a front panel 21, a bottom plate 23, and two side plates 22, the two side plates 22 being symmetrically arranged on both sides of the front panel 21 in the vehicle body width direction Y and connected to the side walls of the tower pack 1; the bottom plate 23 is arranged on the lower side of the front panel 21 and connected to the lower cross beam 6. The firewall 2 is an integrated sheet metal part, the front panel 21 of the firewall 2 serves as the main force receiving surface, the bottom plate 23 serves as the bottom support part, and the side plates 22 serve as lateral support wings. The originally flat firewall 2 is optimized into a box structure, the in-plane stiffness and the bending stiffness of the firewall 2 are improved, and the properties of the weak nodes are fundamentally changed.

[0072] The force transmission path is: when the impact force from the front acts on the front panel 21, the impact force is shunted to the side walls of the two tower packs 1 through the two side plates 22 in the shortest path, and this part of the load can be directly transmitted to the rocker beams and the lower vehicle body through the tower pack 1. In addition, the impact force received by the front panel 21 can also be directly transmitted to the lower cross beam 6 through the bottom plate 23, and then dissipated to the longitudinal beams 8. The lateral and downward paths are combined with the force transmission path of the A-pillar assembly 4 to form a front protection system that surrounds the passenger compartment in all directions, and the multi-channel dissipation of the load is achieved.

[0073] In some embodiments, in order to meet different use requirements, the firewall 2 can be designed as an arched structure, which can improve the in-plane stiffness and the bending stiffness of the firewall 2. The upper side of the front end of the firewall 2 is connected to the upper cross beam 3, the two side wings of the firewall 2 gradually extend backward, and the middle part to the two sides is bent backward and connected to the side walls of the tower pack 1. Moreover, the bottom of the firewall 2 gradually extends backward, and from top to bottom, it is bent backward and connected to the lower cross beam 6. The force transmission path of the arched structure is smoother, and the multi-channel dissipation of the load is also achieved.

[0074] In other embodiments, the present application provides a vehicle, which includes a vehicle body front structure, the vehicle body front structure being the same as each of the specific embodiments of the vehicle body front structure in the above-mentioned embodiments of the vehicle body front structure of the present application, and details are not repeated here. The vehicle can also achieve the purpose of ensuring the safety of the passenger compartment and effectively dissipating the collision energy.

[0075] As an example, the vehicle includes one of a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile includes but is not limited to a pure electric automobile, a hybrid automobile, or a range extended automobile.

[0076] It should also be noted that the terms "comprising", "containing", or any other variant thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0077] The above only describes the embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

[0078] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A front structure for a vehicle body, characterized in that, include: Two tower packs (1) are provided opposite each other along the width direction (Y) of the vehicle body; Firewall (2) is located on the front side of the tower package (1); The upper crossbeam (3) is located on the upper side of the firewall (2), and the upper crossbeam (3) extends along the width direction (Y) of the vehicle body; The A-pillar assembly (4) is located on the outside of the tower package (1), and the end of the upper crossbeam (3) is connected to the A-pillar assembly (4); The reinforcing structure (5) is located on the inner side of the A-pillar assembly (4), and includes longitudinal ribs (51), vertical ribs (52) and diagonal ribs (53). The longitudinal ribs (51) are spaced apart on the upper side of the tower (1). The longitudinal ribs (51) extend along the length direction (X) of the vehicle body and connect to the upper crossbeam (3). The vertical rib (52) is located at the top of the tower (1) and is connected to the end of the longitudinal rib (51) away from the upper crossbeam (3); the diagonal rib (53) is located between the longitudinal rib (51) and the tower (1), and the diagonal rib (53) connects the upper crossbeam (3) and the top of the tower (1).

2. The front structure of the vehicle body according to claim 1, characterized in that, The upper crossbeam (3) is spaced apart on the front side of the tower bag (1), and the reinforcing structure (5) also includes an inclined reinforcing plate (54). The inclined reinforcing plate (54) connects the upper crossbeam (3) and the top of the tower bag (1), and the inclined rib (53) is provided on the inclined reinforcing plate (54).

3. The front structure of the vehicle body according to claim 2, characterized in that, The firewall (2) is spaced inside the A-pillar assembly (4), and the inclined reinforcing plate (54) connects the firewall (2) and the A-pillar assembly (4).

4. The vehicle front structure according to any one of claims 1 to 3, characterized in that, The longitudinal reinforcement (51) includes a longitudinal reinforcement body (511) and a first flange (512). The first flange (512) is located at the edge of the longitudinal reinforcement body (511). The longitudinal reinforcement body (511) abuts against the upper crossbeam (3). The longitudinal reinforcement (51) is connected to the A-column assembly (4) and the vertical reinforcement (52) through the first flange (512).

5. The vehicle front structure according to any one of claims 1 to 3, characterized in that, The vertical rib (52) includes a vertical rib body (521) and a second flange (522). The second flange (522) is located at the edge of the vertical rib body (521). The vertical rib body (521) abuts against the top of the tower bag (1). The vertical rib (52) is connected to the A-pillar assembly (4) through the second flange (522).

6. The vehicle front structure according to claim 2 or 3, characterized in that, The inclined rib (53) includes an inclined rib body (531) and a third flange (532). The third flange (532) is located at the edge of the inclined rib body (531). The inclined rib body (531) abuts against the upper crossbeam (3). The inclined rib (53) is connected to the top of the tower bag (1), the A-column assembly (4) and the inclined reinforcing plate (54) through the third flange (532).

7. The vehicle front structure according to any one of claims 1 to 3, characterized in that, The A-pillar assembly (4) includes a fixedly connected A-pillar triangular window (41) and A-pillar (42). The A-pillar (42) is located on the outside of the tower package (1), the A-pillar triangular window (41) is located on the upper side of the A-pillar (42), and the reinforcing structure (5) is located on the upper inner side of the A-pillar (42).

8. The front structure of the vehicle body according to claim 1, characterized in that, The front structure of the vehicle body also includes a lower crossbeam (6) and a supporting vertical beam (7). The lower crossbeam (6) is located on the lower side of the firewall (2) and extends along the width direction (Y) of the vehicle body. The supporting vertical beam (7) is located on the inner side of the firewall (2) and connects the upper crossbeam (3) and the lower crossbeam (6).

9. The front structure of the vehicle body according to claim 8, characterized in that, The firewall (2) includes a front panel (21), a bottom plate (23) and two side plates (22). The two side plates (22) are symmetrically arranged on both sides of the front panel (21) in the vehicle width direction (Y), and the side plates (22) are connected to the side wall of the tower (1). The bottom plate (23) is located on the lower side of the front panel (21) and is connected to the lower crossbeam (6).

10. A vehicle, characterized in that, Includes the vehicle front structure as described in any one of claims 1 to 9.

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