Automobile body front anti-collision structure and automobile
By adding a connecting beam at the front of the vehicle body and optimizing the front longitudinal beam structure, the problem that traditional vehicle body structures cannot effectively absorb and disperse collision forces during a collision has been solved, achieving higher safety and passenger protection.
Patent Information
- Application Number
- CN202520032997.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Traditional vehicle body structures cannot effectively absorb and disperse collision forces during a collision, resulting in large intrusions into the passenger compartment, which fails to meet the safety standards and collision regulations for new energy vehicles.
A connecting beam is added to the front of the vehicle body, and the main anti-collision beam is installed through the connecting beam. The subframe is connected to the front longitudinal beam and the middle longitudinal beam. At the same time, a secondary anti-collision beam is set at the front end of the subframe. The structure of the front longitudinal beam is optimized to be approximately arc-shaped. The connecting beam is designed as a closed ring with concave ribs to enhance energy absorption and force dispersion capabilities.
It significantly improves the overall rigidity and energy absorption capacity of the vehicle body, reduces the risk of collision intrusion into the cab, and protects passenger safety.
Smart Images
Figure CN223590848U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of building construction, and relates to a front part anti-collision structure of a vehicle body and a vehicle. BACKGROUND
[0002] The vehicle body structure is not only the basic framework of the vehicle load bearing, but also the key part of providing passenger safety protection, especially when the vehicle collides, the strength and energy absorption capacity of its structure are directly related to the life safety of the people in the vehicle.
[0003] The traditional vehicle body structure design, especially for the arrangement mode of the front longitudinal beam and the front subframe, usually adopts the direct screwing mode to fix the front anti-collision beam on the left and right front longitudinal beam assembly, and the front subframe is installed on the left and right front longitudinal beam through bolts. This design can provide the rigidity and strength of the vehicle body to a certain extent, but when facing the safety requirements of modern new energy vehicles, especially in the performance of the collision test, its defects gradually appear. Specifically, most of the traditional front longitudinal beam structure is a whole welding stamping structure, when the vehicle collides violently at high speed, the engine and gearbox and other important parts are easy to cause a large amount of intrusion to the cab, which leads to serious personnel injury, and cannot meet the current safety standards and collision regulations of new energy vehicles.
[0004] In addition, the transmission and dispersion effect of the collision force is not ideal in the traditional structure, which leads to the collision energy cannot be effectively absorbed, thereby increasing the risk of vehicle damage and repair cost. Therefore, in order to improve the collision safety performance of new energy vehicles and reduce the intrusion amount of collision to the cab and passengers, it is necessary to innovatively design the front longitudinal beam structure and its installation mode with the front subframe, so as to develop a safer and more efficient vehicle body structure scheme. This demand promotes the exploration and research of the optimization design structure of the front longitudinal beam and the front subframe installation design, so as to improve the safety and passenger protection capacity of the vehicle in the case of collision without sacrificing the rigidity of the vehicle body.
[0005] In order to solve the above problems, the installation and connection structure of the front part of the vehicle body needs to be optimized and improved, so that the collision force is more reasonably dispersed and absorbed in the vehicle body structure, thereby reducing the intrusion amount to the cab, ensuring that the vehicle can better protect the passengers when colliding, and improving the overall safety. UTILITY MODEL CONTENTS
[0006] Therefore, the vehicle body front anti-collision structure and the automobile are provided.
[0007] The utility model discloses a vehicle body front anti-collision structure, include:
[0008] Main anti -collision subassembly, main anti -collision subassembly include main anti -collision beam, connecting beam and front longitudinal beam, the main anti -collision beam passes through connecting beam and is connected to front longitudinal beam;
[0009] Sub -anti -collision subassembly, sub -anti -collision subassembly include front sub -frame, vice -collision beam and middle longitudinal beam, the front of front sub -frame is connected to front longitudinal beam, and the rear end of front sub -frame is connected to middle longitudinal beam, and vice -collision beam is installed in the front end of front sub -frame.
[0010] Further, the rear portion of the front longitudinal beam gradually curves outward along the width direction of the vehicle body, so that the front longitudinal beam as a whole presents an approximately arc-shaped structure.
[0011] Further, the front longitudinal beam includes a longitudinal beam inner plate and a longitudinal beam outer plate, the longitudinal beam inner plate is recessed inward along the width direction of the vehicle body, the longitudinal beam outer plate is protruded outward along the width direction of the vehicle body, and the top edge and the bottom edge of the longitudinal beam inner plate and the longitudinal beam outer plate correspondingly adhere to each other, so that the front longitudinal beam forms a hollow cavity structure.
[0012] Further, the connecting beam has a closed ring-shaped structure along the radial section of the connecting beam, and the connecting beam is provided with a plurality of recessed ribs along the axial direction of the connecting beam.
[0013] Further, the rear end of the connecting beam is inserted into the front end of the front longitudinal beam, and the outer surface of the rear end of the connecting beam adheres to the inner surface of the front end of the front longitudinal beam.
[0014] Further, the height of the front longitudinal beam gradually increases from front to back, the front longitudinal beam has a minimum height a and a maximum height b, and b / a≥2.
[0015] Further, the top of the front end of the front sub-frame is detachably installed on the front portion of the bottom surface of the front longitudinal beam, and the top of the rear end of the front sub-frame is detachably installed on the front portion of the bottom surface of the middle longitudinal beam.
[0016] Further, the width of the middle longitudinal beam gradually decreases from front to back.
[0017] This utility model also discloses an automobile equipped with the aforementioned front body anti-collision structure.
[0018] The beneficial effects of this utility model are:
[0019] This utility model provides a front anti-collision structure for a vehicle body and an automobile. A connecting beam is added to the front of the vehicle body, changing the main anti-collision beam from being directly installed to the front longitudinal beam in the traditional way to being installed through the connecting beam. At the same time, the subframe is connected to both the front and middle longitudinal beams, and a secondary anti-collision beam is set at the front end of the subframe. This not only improves the overall rigidity of the vehicle body structure, but also significantly enhances the vehicle's energy absorption and force distribution capabilities during a collision, effectively reducing the risk of intrusion into the passenger compartment during a collision.
[0020] This invention optimizes the structure of the connecting beam, designing it as a closed ring structure with multiple sets of concave ribs. This significantly enhances the rigidity of the front longitudinal beam and improves its energy absorption capacity during a collision. This unique structure can rapidly collapse upon impact, absorbing a large amount of impact energy, effectively reducing the damage to the vehicle body and improving vehicle safety. This invention also optimizes the front longitudinal beam structure, making it approximately arc-shaped with a gradually increasing front height, allowing for more rational dispersion of impact force during transmission. This design makes the front longitudinal beam more prone to bending deformation in specific areas during a collision, rather than being directly transmitted to the driver's cab, thus effectively reducing the impact on the cab and protecting the driver and passengers from serious injury. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the assembly structure of the secondary anti-collision component of this utility model;
[0023] Figure 3 This is a front view of the connecting beam of this utility model;
[0024] Figure 4 This is a side view of the connecting beam of this utility model;
[0025] Figure 5 This is a front view of the front longitudinal beam of this utility model;
[0026] Figure 6 This is a top view of the front longitudinal beam of this utility model;
[0027] Figure 7 This is a bottom view of the front longitudinal beam of this utility model;
[0028] Figure 8 This is a front view of the longitudinal beam of this utility model. DETAILED DESCRIPTION
[0029] It should be noted that in the description of the present application, the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" 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 do not indicate or imply 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 a limitation on the present application. In the present embodiment, the length direction, width direction and height direction are all corresponding to the length direction, width direction and height direction of the vehicle body, and the inner direction is directed inwardly of the vehicle body, and the outer direction is directed outwardly of the vehicle body, and the top, bottom, upper and lower are also corresponding to the orientation of the vehicle body, and the length, width and height are the dimensions corresponding to the directions, which can be understood by those skilled in the art. In the present embodiment, if not otherwise specified, mounting, connection and the like can be achieved by welding, riveting or threaded connection and the like. In the present embodiment, a single-sided structure is taken as an example for illustration, and in essence, the front longitudinal beam, the middle longitudinal beam and the connecting beam are each provided with left and right two beams along the width direction of the vehicle body, and the main crash beam, the auxiliary crash beam and the auxiliary frame are all connected correspondingly, which can be understood by those skilled in the art, and will not be described here.
[0030] As shown in the drawings, the embodiment of the present application provides a vehicle body front anti-collision structure, which comprises a main anti-collision assembly and an auxiliary anti-collision assembly, the main anti-collision assembly comprises a main anti-collision beam 1, a connecting beam 2 and a front longitudinal beam 3, the main anti-collision beam 1 is connected to the front longitudinal beam 3 through the connecting beam 2; the auxiliary anti-collision assembly comprises a front auxiliary frame 5, an auxiliary anti-collision beam 4 and a middle longitudinal beam 6, the front part of the front auxiliary frame 5 is connected to the front longitudinal beam 3, the rear end of the front auxiliary frame 5 is connected to the middle longitudinal beam 6, and the auxiliary anti-collision beam 4 is mounted at the front end of the front auxiliary frame 5. In the present embodiment, the connecting beam 2 is additionally arranged at the front part of the vehicle body, the main anti-collision beam 1 is changed from being directly mounted to the front longitudinal beam 3 in the conventional way to being mounted through the connecting beam 2, at the same time, the auxiliary frame 5 is connected to the front longitudinal beam 3 and the middle longitudinal beam 6, and the auxiliary anti-collision beam 4 is arranged at the front end of the auxiliary frame 5, which not only improves the overall rigidity of the vehicle body structure, but also significantly enhances the energy absorption and force dispersion capacity of the vehicle during a collision, effectively reducing the risk of intrusion of the collision into the cab.
[0031] In the present embodiment, the rear part of the front longitudinal beam 3 gradually curves outwardly along the width direction of the vehicle body, so that the front longitudinal beam 3 as a whole presents an approximately arc-shaped structure. In the present embodiment, the front longitudinal beam 3 gradually curves outwardly from the rear part, so that the front longitudinal beam 3 forms an inwardly concave arc-shaped area at the rear part thereof, which is easy to bend and deform at the arc-shaped area during a strong collision, and the collision force can be more reasonably dispersed during transmission.
[0032] In the embodiment, the front longitudinal beam 3 comprises a longitudinal beam inner plate 302 and a longitudinal beam outer plate 301, the longitudinal beam inner plate 302 is concave inward along the width direction of the vehicle body, the longitudinal beam outer plate 301 is convex outward along the width direction of the vehicle body, the top edge and the bottom edge of the longitudinal beam inner plate 302 and the longitudinal beam outer plate 301 correspondingly adhere to each other, so that the front longitudinal beam 3 forms a hollow cavity structure. The front longitudinal beam 3 in the embodiment is formed by stamping the longitudinal beam inner plate 302 and the longitudinal beam outer plate 301, after stamping, the top edge and the bottom edge of the longitudinal beam inner plate 302 form flanges, and the other parts form a concave structure as shown in the figure, and the longitudinal beam outer plate 301 is the same, the top edge and the bottom edge of the longitudinal beam outer plate 301 form flanges, and the other parts form a convex structure as shown in the figure, and the flanges of the longitudinal beam inner plate 302 and the longitudinal beam outer plate 301 adhere to each other to constitute the front longitudinal beam 3, so that the longitudinal beam as a whole forms a hollow cavity structure with open ends in the length direction, which is more conducive to enhancing the structural strength and energy absorption capacity of the front longitudinal beam 3, and more conducive to protecting the safety of the driver and passengers.
[0033] In the embodiment, the cross section of the connecting beam 2 along the radial direction of the connecting beam 2 is a closed ring structure, and the connecting beam 2 is provided with a plurality of concave ribs 201 along the axial direction of the connecting beam 2. The connecting beam 2 in the embodiment is arranged along the length direction of the vehicle body, the axial direction of the connecting beam 2 is the length direction of the vehicle body, the radial direction is perpendicular to the axial direction, the radial cross section of the connecting beam 2 is a radial closed ring structure with a circular shape, and the connecting beam 2 is concave inward along the radial direction to form the rib 201, the rib 201 penetrates around the circumference of the connecting beam 2, and the rib 201 is provided with a plurality of ribs along the axial direction. Under the foregoing structure, the connecting beam 2 can quickly collapse and absorb a large amount of impact energy when a collision occurs, effectively reducing the damage degree of the vehicle body in the collision and improving the safety of the vehicle.
[0034] In the embodiment, the rear end of the connecting beam 2 is inserted into the front end of the front longitudinal beam 3, and the outer surface of the rear end of the connecting beam 2 is adhered to the inner surface of the front end of the front longitudinal beam 3. In the embodiment, the connecting beam 2 and the front longitudinal beam 3 are inserted and nested with each other and then fixed, so that the connection can improve the structural strength of the connection position of the two, and further improve the structural strength of the vehicle body.
[0035] The height of the front longitudinal beam 3 gradually increases from front to back, and the front longitudinal beam 3 has a minimum height a and a maximum height b, and b / a is greater than or equal to 2.
[0036] In the embodiment, the top of the front end of the front subframe 5 is detachably mounted on the front part of the bottom surface of the front longitudinal beam 3, and the top of the rear end of the front subframe 5 is detachably mounted on the front part of the bottom surface of the middle longitudinal beam 6. In the embodiment, the width of the middle longitudinal beam 6 gradually decreases from front to back. As shown in the figure, in the embodiment, the top of the front end of the front subframe 5 is bolted to the front part of the bottom surface of the front longitudinal beam 3, and the rear end of the front subframe 5 is bolted to the front part of the middle longitudinal beam 6. The width of the middle longitudinal beam 6 is also designed to gradually decrease, which is helpful for the dispersion and transmission of the collision force, reduces the intrusion of important components such as the engine and the transmission into the cab, and ensures the safety of driving.
[0037] The utility model discloses still disclose a kind of cars, and the car is equipped with the car body front portion anti-collision structure as aforementioned.
[0038] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the utility model technical solutions. They should be covered in the scope of the claims of the utility model.
Claims
1. A vehicle body front portion collision structure characterized by comprising: The application relates to a front anti-collision structure of a vehicle body. The main anti-collision assembly comprises a main anti-collision beam, a connecting beam and a front longitudinal beam, the main anti-collision beam is connected to the front longitudinal beam through the connecting beam; The auxiliary anti-collision assembly comprises a front auxiliary frame, an auxiliary anti-collision beam and a middle longitudinal beam, the front part of the front auxiliary frame is connected to the front longitudinal beam, the rear end of the front auxiliary frame is connected to the middle longitudinal beam, and the auxiliary anti-collision beam is installed at the front end of the front auxiliary frame.
2. The vehicle body front collision preventing structure according to claim 1, characterized by: The rear part of the front longitudinal beam is gradually curved outward along the width direction of the vehicle body, so that the front longitudinal beam is approximately in an arc structure.
3. The vehicle body front collision preventing structure according to claim 1, characterized by: The front longitudinal beam comprises an inner longitudinal beam plate and an outer longitudinal beam plate, the inner longitudinal beam plate is concave inward along the width direction of the vehicle body, the outer longitudinal beam plate is convex outward along the width direction of the vehicle body, and the top edges and the bottom edges of the inner longitudinal beam plate and the outer longitudinal beam plate are respectively matched with each other, so that the front longitudinal beam is in a hollow cavity structure.
4. The vehicle body front collision preventing structure according to claim 1, characterized by: The connecting beam is in a closed ring structure along the radial section of the connecting beam, and the connecting beam is provided with a plurality of concave ribs along the axial direction of the connecting beam.
5. The vehicle body front collision preventing structure according to claim 1, characterized by: The rear end of the connecting beam is inserted into the front end of the front longitudinal beam, and the outer surface of the rear end of the connecting beam is matched with the inner surface of the front end of the front longitudinal beam.
6. The vehicle body front collision preventing structure according to claim 1, characterized by: The height of the front longitudinal beam is gradually increased from front to rear, the front longitudinal beam has a minimum height a and a maximum height b, and b / a>=2.
7. The vehicle body front collision preventing structure according to claim 1, characterized by: The top of the front end of the front auxiliary frame is detachably installed on the front part of the bottom surface of the front longitudinal beam, and the top of the rear end of the front auxiliary frame is detachably installed on the front part of the bottom surface of the middle longitudinal beam.
8. The vehicle body front collision preventing structure according to claim 1, characterized by: The width of the middle longitudinal beam is gradually decreased from front to rear.
9. An automobile characterized by comprising: The vehicle is provided with the front anti-collision structure of the vehicle body according to any one of claims 1-8.