Auxiliary frame assembly and vehicle with same

Abstract

The utility model discloses an auxiliary frame assembly and a vehicle with the auxiliary frame assembly. The auxiliary frame assembly comprises an auxiliary frame body, an installation support and a safe collision structure. The auxiliary frame assembly is used for the vehicle, the mounting support is located in front of the auxiliary frame body and connected with the auxiliary frame body, and the mounting support is provided with a mounting cavity with the front end open. The safety collision structure is located in front of the mounting support, and the rear end of the safety collision structure extends into the mounting cavity through the opening and is detachably connected with the mounting support. According to the auxiliary frame assembly, the adaptability and the universality of the auxiliary frame assembly are high, the safety of a vehicle is improved, and meanwhile, a safe collision structure can be flexibly adjusted according to different requirements and application scenes on the premise that it is guaranteed that the auxiliary frame body is not changed.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is a kind of auxiliary frame assembly and vehicle with it. BACKGROUND

[0002] In related art, in order to improve the collision safety of vehicle, safety collision structure with components such as energy-absorbing box is arranged in front of front auxiliary frame. But the compatibility and flexibility of front auxiliary frame and safety collision structure of existing vehicle are poor, and the front auxiliary frame and safety collision structure are often changed and adjusted as a whole for different needs, and the safety collision structure cannot be flexibly adjusted according to different standard collision safety regulations requirements or different demand application scenarios, and the adaptability and versatility of front auxiliary frame and safety collision structure cannot meet the needs. SUMMARY

[0003] The utility model at least solves one of the technical problems in the prior art. To this end, the utility model provides an auxiliary frame assembly, which has high adaptability and versatility, improves the safety of vehicle, and can flexibly adjust the safety collision structure according to different needs and application scenarios while ensuring that the auxiliary frame body remains unchanged.

[0004] The utility model further provides a vehicle, which comprises the auxiliary frame assembly described above.

[0005] The auxiliary frame assembly according to the utility model embodiment comprises an auxiliary frame body, a mounting bracket and a safety collision structure. The auxiliary frame assembly is used for vehicle, the mounting bracket is located in front of the auxiliary frame body and connected with the auxiliary frame body, and the mounting bracket has an installation cavity with open front end; the safety collision structure is located in front of the mounting bracket, and the rear end of the safety collision structure extends into the installation cavity through an open port and is detachably connected with the mounting bracket.

[0006] The auxiliary frame assembly according to the utility model embodiment connects the mounting bracket to the front of the auxiliary frame body, and detachably connects the safety collision structure to the front of the mounting bracket, so that the collision energy can be absorbed and the impact force can be dispersed when the front of vehicle is collided, thereby protecting passengers and vehicle and improving the safety of vehicle. The safety collision structure can be flexibly adjusted according to different standard collision safety regulations requirements or different demand application scenarios while ensuring that the auxiliary frame body remains unchanged, which is conducive to improving the flexibility, compatibility and versatility of the auxiliary frame assembly.

[0007] According to some embodiments of the present application, the mounting bracket comprises a fixed plate and a mounting plate, the fixed plate is located in front of the auxiliary frame body and connected with the auxiliary frame body; the rear end of the mounting plate is connected with the fixed plate, and the fixed plate and the mounting plate define the mounting cavity, and the safety collision structure is detachably connected with the mounting plate.

[0008] In some embodiments of the present application, the mounting plate comprises an upper side plate and a lower side plate, the upper side plate and the lower side plate extend along the left-right direction of the vehicle, the upper side plate and the lower side plate are respectively connected with both ends of the fixed plate along the up-down direction of the vehicle, and the safety collision structure is located between the upper side plate and the lower side plate; or, the mounting plate is in a cylindrical shape and extends along the front-rear direction of the vehicle, and the safety collision structure is arranged in the mounting plate.

[0009] According to some embodiments of the present application, the auxiliary frame body is provided with a lower plate, the front end of the lower plate is provided with a folded plate which is folded upward, the folded plate extends along the left-right direction of the vehicle, and the mounting bracket is located in front of the folded plate and connected with the folded plate.

[0010] According to some embodiments of the present application, the mounting bracket is two mounting brackets which are spaced apart along the left-right direction of the vehicle, the safety collision structure comprises a front anti-collision beam, an energy absorption box, a longitudinal beam and an intermediate cross beam, the front anti-collision beam extends along the left-right direction; the energy absorption box is two energy absorption boxes which are opposite to the two mounting brackets, the front end of the energy absorption box is connected with the front anti-collision beam; the longitudinal beam is two longitudinal beams which are opposite to the two mounting brackets, the longitudinal beam extends along the front-rear direction of the vehicle, and the front end and the rear end of each longitudinal beam are respectively connected with the opposite energy absorption box and the mounting bracket; the intermediate cross beam extends along the left-right direction and is connected with the longitudinal beam at the left end and the right end, is used for being connected with the front bumper of the vehicle, and is spaced apart from the front anti-collision beam and the auxiliary frame body along the front-rear direction.

[0011] In some embodiments of the present application, the front anti-collision beam is an arc shape which protrudes towards the front of the vehicle; and / or, the energy absorption box is in a cylindrical shape; and / or, the energy absorption box is provided with a special-shaped hole which penetrates the energy absorption box along the up-down direction of the vehicle; and / or, the longitudinal beam has a cavity which penetrates the longitudinal beam along the length direction of the longitudinal beam.

[0012] According to some embodiments of the present application, the mounting bracket and the auxiliary frame body are separate parts; and / or, the mounting bracket and the auxiliary frame body are connected by welding; and / or, the safety collision structure and the mounting bracket are connected by fasteners.

[0013] According to some embodiments of the present application, the safety collision structure is a sheet metal tailor-welded part; and / or, the mounting bracket is a single-layer sheet metal part or a sheet metal tailor-welded part; and / or, the safety collision structure and / or the mounting bracket is an aluminum alloy part.

[0014] The vehicle according to the embodiments of the present application comprises the auxiliary frame assembly.

[0015] According to the vehicle of the present application, the mounting bracket is connected to the front of the auxiliary frame body, and the safety collision structure is detachably connected to the front of the mounting bracket, so that the collision energy can be absorbed and the impact force can be dispersed when the front of the vehicle is collided, thereby protecting the passengers and the vehicle and improving the safety of the vehicle. In addition, the safety collision structure can be flexibly adjusted according to different collision safety regulations or different application scenarios under the premise of ensuring that the auxiliary frame body does not change, which is beneficial to improve the flexibility, compatibility and universality of the auxiliary frame assembly.

[0016] In some embodiments of the present application, the vehicle comprises a vehicle body front longitudinal beam extending in the front-rear direction of the vehicle, and the vehicle body front longitudinal beam is connected with the safety collision structure and the auxiliary frame body, respectively.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, with reference to the following figures, wherein:

[0019] Figure 1 is a structure diagram of the safety collision structure of the auxiliary frame assembly according to the embodiments of the present application;

[0020] Figure 2 is a structure diagram of the safety collision structure of the auxiliary frame assembly according to the embodiments of the present application;

[0021] Figure 3 is a structure diagram of the auxiliary frame body of the auxiliary frame assembly according to the embodiments of the present application;

[0022] Figure 4 is a structure diagram of the lower plate of the auxiliary frame body of the auxiliary frame assembly according to the embodiments of the present application;

[0023] Figure 5 is a structure diagram of the mounting bracket of the auxiliary frame assembly according to the embodiments of the present application;

[0024] Figure 6is a structural view of the auxiliary frame assembly and the front longitudinal beam of the vehicle body according to the embodiment of the utility model.

[0025] Reference signs:

[0026] 100, auxiliary frame assembly;

[0027] 1, auxiliary frame body; 11, lower plate; 111, folding plate; 12, front cross beam; 13, rear cross beam; 14, upper plate; 15, mounting tower; 151, front mounting sleeve; 16, rear mounting sleeve;

[0028] 2, mounting bracket; 21, fixed plate; 22, mounting plate; 221, upper side plate; 222, lower side plate; 223, mounting through hole; 23, mounting cavity;

[0029] 3, safety collision structure; 31, front anti-collision beam; 32, energy absorption box; 321, special-shaped hole; 33, longitudinal beam; 331, cavity; 34, middle cross beam;

[0030] 4, front longitudinal beam of vehicle body. DETAILED DESCRIPTION

[0031] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0032] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, cannot be understood as limiting the utility model. In addition, the features limited as "first", "second" can be explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0033] In the description of the utility model, it is necessary to explain that, unless there are explicit provisions and limitations, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or it can be detachable connection, or it can be integrally connected, it can be mechanical connection, or it can be electrical connection, it can be directly connected, or it can be indirectly connected through intermediate medium, it can be the communication inside two elements, for ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0034] Reference is made below Figures 1-6 The auxiliary frame assembly 100 according to the embodiments of the utility model is described.

[0035] As Figures 1-3 shown, the auxiliary frame assembly 100 according to the embodiments of the utility model comprises an auxiliary frame body 1, a mounting bracket 2 and a safety crash structure 3.

[0036] Specifically, as Figures 1-3 shown, the auxiliary frame assembly 100 is used for a vehicle, the mounting bracket 2 and the auxiliary frame body 1 can be separate parts, the mounting bracket 2 is located in front of the auxiliary frame body 1 and is connected with the auxiliary frame body 1, and the mounting bracket 2 has a mounting cavity 23 with an open front end. The safety crash structure 3 is located in front of the mounting bracket 2, and the rear end of the safety crash structure 3 extends into the mounting cavity 23 through an open port and is detachably connected with the mounting bracket 2.

[0037] The auxiliary frame body 1 is connected with the chassis and the vehicle body, which can provide fixed mounting points for components such as engines, suspensions, fuel tanks, control arms, stabilizer bars and steering gears while strengthening the structural strength of the vehicle and the stability of the vehicle body. The rear end of the safety crash structure 3 extends into the mounting cavity 23 and is connected with the mounting bracket 2, so that the auxiliary frame body 1 is connected with the safety crash structure 3. The safety crash structure 3 can be provided with components such as front anti-collision beams 31 and energy-absorbing boxes 32 for protecting passengers and vehicles. When the front of the vehicle is subjected to a collision, the safety crash structure 3 can absorb the huge impact energy generated by the collision and disperse the collision force through controllable deformation (such as folding, compression or collapse), thereby reducing the impact force transmitted to the vehicle body and the front auxiliary frame body 1, protecting the passenger compartment structure integrity, reducing the risk of passenger injury, and also protecting high-value components such as engines and gearboxes located behind the safety crash structure 3, thereby reducing maintenance costs. It can effectively improve the safety of the vehicle, so that the vehicle meets the collision safety regulations requirements.

[0038] Among them, the mounting bracket 2 is connected with the auxiliary frame, and the safety crash structure 3 is detachably connected with the mounting bracket 2, so that the compatibility, flexibility and adaptability of the auxiliary frame assembly 100 can be improved, and the safety crash structure 3 can be flexibly adjusted according to different standard collision safety regulations requirements or different demand application scenarios on the premise of ensuring that the auxiliary frame body 1 does not change.

[0039] For example, according to different collision safety regulations in different countries or regions, in a country or region with low safety standards, the safety collision requirement can be met by the auxiliary frame body 1, in a country or region with high safety standards, the auxiliary frame body 1 remains unchanged, and the connecting mounting bracket 2 is arranged in front of the auxiliary frame body 1, and then the safety collision structure 3 is connected to the mounting bracket 2. In this way, the safety collision structure 3 can be flexibly adjusted to meet the corresponding regulatory requirements, the combination process is simple and the adjustment cost is low, which is beneficial to improve the compatibility and universality of the auxiliary frame body 1.

[0040] For example, under the premise of meeting the collision safety, the safety collision structure 3 can be adjusted according to different demand use scenarios, in a lightweight scenario such as track driving, the safety collision structure 3 can be detached to reduce the weight, thereby improving the vehicle performance, and different safety collision structures 3 with different structural strength and energy absorption performance can be replaced according to the demand, further improving the compatibility, adaptability and universality of the auxiliary frame assembly 100.

[0041] According to the auxiliary frame assembly 100 of the embodiment of the utility model, by connecting the mounting bracket 2 to the front of the auxiliary frame body 1 and detachably connecting the safety collision structure 3 to the front of the mounting bracket 2, the collision energy can be absorbed and the impact force can be dispersed when the front of the vehicle is collided, thereby protecting the passengers and the vehicle and improving the safety of the vehicle. Under the premise of keeping the auxiliary frame body 1 unchanged, the safety collision structure 3 can be flexibly adjusted according to the collision safety regulation requirements of different standards or different demand application scenarios, which is beneficial to improve the flexibility, compatibility and universality of the auxiliary frame assembly 100.

[0042] In some embodiments of the utility model, as shown in Figure 1 , Figure 5 and Figure 6 , the mounting bracket 2 includes a fixed plate 21 and a mounting plate 22, the fixed plate 21 is located in front of the auxiliary frame body 1 and connected with the auxiliary frame body 1, the rear end of the mounting plate 22 is connected with the fixed plate 21, the fixed plate 21 and the mounting plate 22 define a mounting cavity 23, and the safety collision structure 3 is detachably connected with the mounting plate 22. By dividing the mounting bracket 2 into the fixed plate 21 and the mounting plate 22, the fixed plate 21 is used to connect with the auxiliary frame body 1, and the mounting plate 22 is used to connect with the safety collision structure 3, which facilitates the mounting bracket 2 to be connected with the auxiliary frame body 1 and the mounting collision structure respectively, and the structure design is reasonable.

[0043] During production and assembly, the mounting bracket 2 can be first fixed to the front of the auxiliary frame body 1 through the fixed plate 21, and by designing the mounting cavity 23, the contact area of the safety collision structure 3 and the mounting plate 22 can be increased, and the detachable connection between the safety collision structure 3 and the mounting plate 22 can be facilitated.

[0044] In some embodiments of the utility model, as shown in Figure 1 、 Figure 5 and Figure 6 , the mounting plate 22 includes an upper side plate 221 and a lower side plate 222, the upper side plate 221 and the lower side plate 222 extend along the left-right direction of the vehicle, the upper side plate 221 and the lower side plate 222 are connected with both ends of the fixed plate 21 along the up-down direction of the vehicle respectively, and the safety crash structure 3 is located between the upper side plate 221 and the lower side plate 222. Therefore, the mounting bracket 2 can form a structure similar to U type, the upper side plate 221 and the lower side plate 222 can sandwich the safety crash structure 3 in the middle, thereby facilitating the detachable connection between the safety crash structure 3 and the mounting plate 22, and the connection stability between the safety crash structure 3 and the mounting plate 22 can be improved.

[0045] For example, the upper side plate 221, the lower side plate 222 and the safety crash structure 3 can be provided with corresponding mounting through holes 223, and the fasteners such as bolts are sequentially threaded through the mounting through holes 223 of the upper side plate 221, the safety crash structure 3 and the lower side plate 222, so as to realize the screw connection between the safety crash structure 3 and the mounting plate 22, which can not only ensure the detachability of the safety crash structure 3, but also ensure the connection stability between the safety crash structure 3 and the mounting plate 22.

[0046] In some embodiments of the utility model, the mounting plate 22 is cylindrical and extends along the front-rear direction of the vehicle, and the safety crash structure 3 is arranged in the mounting plate 22. The cylindrical mounting plate 22 has higher structural strength, which can further improve the structural strength of the mounting bracket 2, thereby facilitating the improvement of the connection stability between the safety crash structure 3 and the mounting bracket 2, and further improving the stability and reliability of the auxiliary frame assembly 100 as a whole.

[0047] In some embodiments of the utility model, as shown in Figure 1 、 Figure 3 and Figure 4 , the auxiliary frame body 1 is provided with a lower plate 11, the front end of the lower plate 11 has a folding plate 111 folded upward, the folding plate 111 extends along the left-right direction of the vehicle, and the mounting bracket 2 is located in front of the folding plate 111 and connected with the folding plate 111. The folding plate 111 can facilitate the fixation of the mounting bracket 2, thereby facilitating the improvement of the production and assembly efficiency of the auxiliary frame assembly 100. For example, the mounting bracket 2 can be welded on the folding plate 111, or the mounting bracket 2 can be screw-connected with the folding plate 111. Preferably, the folding plate 111 and the lower plate 11 are an integral piece, which can enhance the connection strength between the mounting bracket 2 and the auxiliary frame body 1.

[0048] Among them, as shown in Figure 3In the shown example, the subframe body 1 further comprises a front cross beam 12, a rear cross beam 13 and two upper plates 14, the front cross beam 12 is located above and connected to the lower plate 11, the front cross beam 12 extends along the left-right direction of the vehicle, the rear cross beam 13 is spaced apart from the front cross beam 12 along the front-rear direction of the vehicle, the rear cross beam 13 is located above and connected to the lower plate 11, and the rear cross beam 13 extends along the left-right direction of the vehicle. The two upper plates 14 are located above and connected to the lower plate 11, and each upper plate 14 is provided at the left and right ends of the lower plate 11, and the front and rear ends of each upper plate 14 are connected to the front cross beam 12 and the rear cross beam 13 respectively.

[0049] The front cross beam 12 can provide a fixed mounting point for components such as an engine, suspension, etc., the rear cross beam 13 can provide a fixed position for components such as an oil tank, and the two upper plates 14 are located at the left and right ends of the upper plate 14 respectively, which can absorb impact force during vehicle side collision and provide a fixed mounting point for components such as control arms, stabilizer bars and steering gears, etc.

[0050] The front cross beam 12, the rear cross beam 13 and the two upper plates 14 are all connected to the lower plate 11, and each upper plate 14 is connected to the front cross beam 12 and the rear cross beam 13, which has a simple structure and high integration degree, and can ensure the compactness of the subframe assembly 100. The front cross beam 12, the rear cross beam 13 and the two upper plates 14 can form a substantially quadrilateral frame structure, which can effectively improve the torsional and bending resistance, enhance the structural strength and overall rigidity of the subframe assembly 100, thereby increasing the modal frequency of the subframe assembly 100, avoiding the coupling of the modal frequency of the subframe assembly 100 and the rotational speed frequency under the acceleration condition of the engine or motor, reducing the risk of resonance, and blocking the vibration and noise from entering the vehicle body, thereby effectively suppressing the problem of acceleration roar or motor howling caused by resonance.

[0051] In some embodiments of the present application, as shown in Figure 1 , Figure 2 and Figure 6 , the mounting bracket 2 is spaced apart along the left-right direction of the vehicle, the safety collision structure 3 comprises a front anti-collision beam 31, an energy absorption box 32, a longitudinal beam 33 and an intermediate cross beam 34, the front anti-collision beam 31 extends along the left-right direction, the energy absorption box 32 is opposite to the two mounting brackets 2, and the front end of the energy absorption box 32 is connected to the front anti-collision beam 31. The longitudinal beam 33 is opposite to the two mounting brackets 2, the longitudinal beam 33 extends along the front-rear direction of the vehicle, and the front and rear ends of each longitudinal beam 33 are connected to the opposite energy absorption box 32 and mounting bracket 2 respectively. The intermediate cross beam 34 extends along the left-right direction and is connected to the longitudinal beam 33 at the left and right ends respectively, and is used for connecting with the front bumper of the vehicle, and the intermediate cross beam 34 is spaced apart from the front anti-collision beam 31 and the subframe body 1 along the front-rear direction. In this way, the reasonable force transmission path and energy absorption mechanism can be used to minimize the damage to the vehicle and the occupants caused by the collision.

[0052] The front anti-collision beam 31 extends in the left-right direction and directly bears the impact of a collision, can effectively protect key components such as a radiator and an engine compartment at the front of the vehicle body, and uniformly disperses the collision force to the energy absorption boxes 32 on the left and right sides. The energy absorption boxes 32 absorb collision kinetic energy through controllable collapse deformation (such as folding, compression, etc.), which can reduce the impact force transmitted to the longitudinal beams 33 and the vehicle body. The longitudinal beams 33 extend in the front-rear direction of the vehicle, transmit the remaining collision force absorbed by the energy absorption boxes 32 to the subframe body 1 and the vehicle body frame, and can provide rigid support to ensure the stability of the front of the vehicle body during a collision. The intermediate cross beam 34 connects the left and right longitudinal beams 33, which can effectively enhance the overall rigidity of the safety collision structure 3.

[0053] In this way, the collision force is transmitted from the front anti-collision beam 31 to the energy absorption boxes 32, and then dispersed to the subframe body 1 and the vehicle body frame through the longitudinal beams 33, forming an efficient force transmission path that can avoid local stress concentration leading to structural failure. The energy absorption boxes 32 act as a primary energy absorption device, absorbing most of the collision energy through collapse deformation, and the longitudinal beams 33 and the intermediate cross beam 34 act as a secondary energy absorption structure, further absorbing the remaining energy and ensuring the stability of the vehicle body, which can reduce the collision force transmitted to the passenger compartment and ensure the integrity of the passenger compartment to reduce the risk of injury to the occupants.

[0054] In some embodiments of the present application, as shown in Figure 2 The front anti-collision beam 31 is arc-shaped protruding towards the front of the vehicle, which can more evenly disperse the collision force during a collision and absorb more energy through gradual collapse, thereby enhancing the ability of the front anti-collision beam 31 to absorb collision energy. The arc-shaped front anti-collision beam 31 can also more evenly transmit the collision force to the energy absorption boxes 32 and longitudinal beams 33 on the left and right sides, avoiding local stress concentration and reducing the risk of structural failure.

[0055] In some embodiments of the present application, as shown in Figure 2 The energy absorption boxes 32 are cylindrical and can absorb collision kinetic energy and disperse impact force through controllable collapse deformation (such as folding, compression, etc.), which can effectively improve the ability of the energy absorption boxes 32 to absorb collision energy and disperse impact force.

[0056] In some embodiments of the present application, as shown in Figure 2 The energy absorption boxes 32 are provided with a special-shaped hole 321 that penetrates the energy absorption boxes 32 in the up-down direction of the vehicle, which can serve as an avoidance function, allowing a positioning pin used to fix the cooling module on the vehicle to pass through the special-shaped hole 321, facilitating tooling and improving structural compactness.

[0057] In some embodiments of the present application, as shown in Figure 2As shown, the longitudinal beam 33 has a cavity 331 which penetrates the longitudinal beam 33 along the length direction of the longitudinal beam 33. By designing the cavity 331, the structural strength and rigidity of the longitudinal beam 33 can be effectively improved, and the bending and torsion resistance of the longitudinal beam 33 can be improved, further enhancing the overall rigidity and structural strength of the safety crash structure 3 and the subframe assembly 100. In addition, the energy absorption box 32 can effectively improve the ability to absorb collision energy and disperse impact force.

[0058] In some embodiments of the present application, as shown in Figure 1 The mounting bracket 2 and the subframe body 1 are separate parts, which can improve the compatibility, flexibility and adaptability of the subframe assembly 100. The safety crash structure 3 can be flexibly adjusted according to different standards of collision safety regulations or different application scenarios with different requirements, while keeping the subframe body 1 unchanged.

[0059] In some embodiments of the present application, the mounting bracket 2 and the subframe body 1 are welded and connected, which can effectively improve the connection strength between the mounting bracket 2 and the subframe body 1, thereby enhancing the overall rigidity and structural strength of the subframe assembly 100.

[0060] In some embodiments of the present application, the safety crash structure 3 and the mounting bracket 2 are connected by fasteners, which can ensure the connection stability between the safety crash structure 3 and the mounting bracket 2, and realize the detachable connection between the safety crash structure 3 and the mounting bracket 2. The compatibility, flexibility and adaptability of the subframe assembly 100 can be improved, and the safety crash structure 3 can be flexibly adjusted according to different standards of collision safety regulations or different application scenarios with different requirements, while keeping the subframe body 1 unchanged.

[0061] In some embodiments of the present application, the safety crash structure 3 is a sheet metal tailor-welded part, which is easy to process and can effectively reduce production and manufacturing costs while ensuring the structural strength of the safety crash structure 3. The sheet metal tailor-welded part can realize controllable energy absorption through a specific collapse structure (such as a fold or a groove), effectively absorbing impact energy during a collision to achieve the purpose of protecting the vehicle and the occupants.

[0062] In some embodiments of the present application, the mounting bracket 2 is a single-layer sheet metal part or a sheet metal tailor-welded part, which is easy to process and can effectively reduce production and manufacturing costs while ensuring the structural strength of the mounting bracket 2.

[0063] In some embodiments of the utility model, the safety collision structure 3 and / or the mounting bracket 2 is an aluminum alloy piece. The aluminum alloy piece has higher structural strength, which can effectively enhance the structural strength of the whole auxiliary frame assembly 100.

[0064] A vehicle according to embodiments of the utility model is described below.

[0065] The vehicle according to embodiments of the utility model comprises the auxiliary frame assembly 100 described above.

[0066] Specifically, as shown in Figures 1-3 and Figure 6 , the auxiliary frame assembly 100 comprises an auxiliary frame body 1, a mounting bracket 2 and a safety collision structure 3. The mounting bracket 2 is a separate piece from the auxiliary frame body 1. The mounting bracket 2 is located in front of the auxiliary frame body 1 and is connected to the auxiliary frame body 1. The mounting bracket 2 has a mounting cavity 23 with an open front end. The safety collision structure 3 is located in front of the mounting bracket 2. The rear end of the safety collision structure 3 extends into the mounting cavity 23 through an open port and is detachably connected to the mounting bracket 2.

[0067] According to the vehicle of the utility model, the mounting bracket 2 is connected to the front of the auxiliary frame body 1, and the safety collision structure 3 is detachably connected to the front of the mounting bracket 2. When the front of the vehicle is subjected to a collision, the collision energy can be absorbed and the impact force can be dispersed, thereby protecting the passengers and the vehicle and improving the safety of the vehicle. The safety collision structure 3 can be flexibly adjusted according to different collision safety regulations or different application scenarios under the premise that the auxiliary frame body 1 remains unchanged, which is conducive to improving the flexibility, compatibility and universality of the auxiliary frame assembly 100.

[0068] In some embodiments of the utility model, as shown in Figure 6 , the vehicle comprises a vehicle body front longitudinal beam 4. The vehicle body front longitudinal beam 4 extends along the front-rear direction of the vehicle. The vehicle body front longitudinal beam 4 is connected to the safety collision structure 3 and the auxiliary frame body 1, respectively. The connection stability and reliability of the vehicle body and the auxiliary frame assembly 100 can be improved.

[0069] The auxiliary frame assembly 100 further comprises a mounting tower 15 and a rear mounting sleeve 16. The mounting tower 15 is arranged at the front end of the lower plate 11. The two sides of the front cross beam 12 in the length direction are connected to the mounting tower 15. The mounting tower 15 is provided with a front mounting sleeve 151. The rear mounting sleeve 16 is arranged at the rear end of the lower plate 11. The two sides of the rear cross beam 13 in the length direction are provided with the rear mounting sleeve 16. The rear mounting sleeve 16 is connected to the upper surface of the lower plate 11. The vehicle body front longitudinal beam 4 is connected to the auxiliary frame body 1 through the front mounting sleeve 151 and the rear mounting sleeve 16, which can improve the connection reliability of the auxiliary frame assembly 100 and the vehicle body.

[0070] Preferably, the safety collision structure 3 comprises front anti-collision beams 31 extending in the left-right direction, energy absorption boxes 32 opposite to the two mounting brackets 2, the front ends of the energy absorption boxes 32 being connected with the front anti-collision beams 31, and longitudinal beams 33 opposite to the two mounting brackets 2, the longitudinal beams 33 extending in the front-rear direction of the vehicle, the front and rear ends of each longitudinal beam 33 being connected with the opposite energy absorption box 32 and mounting bracket 2 respectively. The vehicle body front longitudinal beam 4 is connected with the longitudinal beams 33, so that in a collision, the energy absorption boxes 32 absorb most of the collision energy through collapsing deformation, and the remaining energy is transmitted to the subframe body 1 through the longitudinal beams 33, which can effectively reduce the impact on the passenger compartment and the vehicle body, thereby improving the stability and safety of the vehicle in a collision.

[0071] Other configurations of the subframe assembly 100 according to the embodiments of the present application, such as the front mounting sleeve 151 and the rear mounting sleeve 16, are known to those skilled in the art and will not be described in detail here.

[0072] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A subframe assembly characterized by, A vehicle subframe assembly comprising: a subframe body; a mounting bracket located in front of the subframe body and connected with the subframe body, the mounting bracket having a mounting cavity with an open front end; a safety crash structure located in front of the mounting bracket, a rear end of the safety crash structure extending into the mounting cavity through an open port and detachably connected with the mounting bracket.

2. The subframe assembly of claim 1, wherein, The mounting bracket comprises: a fixing plate located in front of the subframe body and connected with the subframe body; a mounting plate having a rear end connected with the fixing plate, the fixing plate and the mounting plate defining the mounting cavity, the safety crash structure being detachably connected with the mounting plate.

3. The subframe assembly of claim 2, wherein, The mounting plate comprises an upper side plate and a lower side plate extending along a left-right direction of the vehicle, the upper side plate and the lower side plate being respectively connected with both ends of the fixing plate along an up-down direction of the vehicle, the safety crash structure being located between the upper side plate and the lower side plate; or, the mounting plate is in a cylindrical shape and extends along a front-rear direction of the vehicle, the safety crash structure being provided in the mounting plate.

4. The subframe assembly of claim 1, wherein, The subframe body is provided with a lower plate, a front end of the lower plate having a folded plate folded upward, the folded plate extending along the left-right direction of the vehicle, the mounting bracket being located in front of the folded plate and connected with the folded plate.

5. The subframe assembly of claim 1, wherein The mounting bracket is two mounting brackets spaced apart along the left-right direction of the vehicle, the safety crash structure comprising: a front crash beam extending along the left-right direction; two energy absorption boxes opposite to the two mounting brackets, a front end of each energy absorption box being connected with the front crash beam; two longitudinal beams opposite to the two mounting brackets, each longitudinal beam extending along the front-rear direction of the vehicle, a front end and a rear end of each longitudinal beam being respectively connected with the energy absorption box opposite to the mounting bracket; a middle cross beam extending along the left-right direction and having left and right ends respectively connected with the longitudinal beams, the middle cross beam being used for connecting with a front bumper of the vehicle, the middle cross beam being spaced apart from the front crash beam and the subframe body along the front-rear direction.

6. The subframe assembly of claim 5, wherein, The front crash beam is an arc shape protruding towards the front of the vehicle; and / or, the energy absorption box is in a cylindrical shape; and / or, the energy absorption box is provided with a special-shaped hole penetrating through the energy absorption box along the up-down direction of the vehicle; and / or, the longitudinal beam has a cavity penetrating through the longitudinal beam along a length direction of the longitudinal beam.

7. The subframe assembly of claim 1, wherein The mounting bracket and the subframe body are separate parts; and / or, the mounting bracket and the subframe body are welded together; and / or, the safety crash structure and the mounting bracket are connected by fasteners.

8. The subframe assembly of claim 1, wherein, The safety crash structure is a sheet metal tailor-welded part; and / or, the mounting bracket is a single-layer sheet metal part or a sheet metal tailor-welded part; and / or, the safety crash structure and / or the mounting bracket is an aluminum alloy part.

9. A vehicle characterized by comprising: The vehicle subframe assembly comprises a plurality of subframe assemblies according to any one of claims 1-8.

10. The vehicle of claim 9, wherein, The vehicle subframe assembly comprises: A front side member of a vehicle body extends in a front-rear direction of the vehicle, and is connected to the safety impact structure and the sub frame body, respectively.

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