Front auxiliary frame and vehicle

Abstract

The utility model discloses a front sub-frame and a vehicle. The front sub-frame comprises a frame cross beam, a front sub-frame and a rear sub-frame, the two vehicle frame longitudinal beams are distributed in a spaced mode, the vehicle frame transverse beam is connected between the two vehicle frame longitudinal beams, and each vehicle frame longitudinal beam is arranged to obliquely extend in the longitudinal direction relative to the vehicle from back to front; wherein the frame longitudinal beams are provided with front mounting points located in the front areas of the frame longitudinal beams and rear mounting points located in the rear areas of the frame longitudinal beams, the frame cross beam comprises a front cross beam, the two ends of the front cross beam are connected to the front areas of the two frame longitudinal beams respectively, and the front cross beam and the front mounting points are distributed oppositely in the transverse direction of the vehicle. According to the front auxiliary frame provided by the embodiment of the utility model, the two frame longitudinal beams are obliquely arranged relative to the longitudinal direction of the vehicle, so that the impact force generated during the offset collision of the vehicle can be absorbed and dispersed, and the front cross beam and the front mounting point are oppositely distributed along the transverse direction of the vehicle; the connecting reliability between the frame longitudinal beam and the vehicle body and the working reliability of the frame longitudinal beam can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to a front subframe and a vehicle with the front subframe. Background Art

[0002] At present, the automotive industry is in an era of accelerating transformation. The automotive industry is developing rapidly with increasingly fierce competition. The trend of new energy vehicles is surging forward. From traditional fuel vehicles to mild hybrid vehicles, plug-in hybrid vehicles and pure electric vehicles, automotive safety has always been highly concerned by people. Automotive safety includes passive safety performance and active safety performance. Among them, passive safety includes various situations such as frontal collision, side collision and offset collision. Existing vehicles have insufficient ability to absorb the impact force during vehicle offset collision, and there is room for improvement. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a front subframe, which can absorb and disperse the impact force during the frontal or side collision of the vehicle. At the same time, both frame longitudinal beams are arranged obliquely relative to the vehicle longitudinal direction to absorb and disperse the impact force during the vehicle offset collision, and can improve the reliability of the work of the frame longitudinal beams, effectively improving the reliability of protecting the vehicle body structure and passenger safety.

[0004] The front subframe according to an embodiment of the utility model includes: a frame cross beam; two frame longitudinal beams, the two frame longitudinal beams are spaced apart along the vehicle transverse direction, the frame cross beam is connected between the two frame longitudinal beams, each frame longitudinal beam is arranged to extend obliquely relative to the vehicle longitudinal direction from the rear to the front, and the two frame longitudinal beams are configured to incline away from each other from the rear to the front; wherein, the frame longitudinal beam is provided with a front mounting point in the front region of the frame longitudinal beam and a rear mounting point in the rear region of the frame longitudinal beam, the frame cross beam includes a front cross beam, and both ends of the front cross beam are respectively connected to the front regions of the two frame longitudinal beams, and the front cross beam and the front mounting point are distributed facing each other along the vehicle transverse direction.

[0005] According to the front subframe of the embodiment of the present utility model, by providing a frame cross beam to absorb and disperse the impact force during a frontal collision of the vehicle, and by providing two frame longitudinal beams to absorb and disperse the impact force during a side collision of the vehicle. At the same time, both of the two frame longitudinal beams are arranged obliquely relative to the longitudinal direction of the vehicle to absorb and disperse the impact force during an offset collision of the vehicle, and the area for the front subframe to bear the impact force during a side collision can be increased. Moreover, by arranging the front cross beam and the front mounting points to be directly opposite each other in the vehicle transverse direction, the connection reliability between the frame longitudinal beam and the vehicle body can be improved, and further the working reliability of the frame longitudinal beam can be improved, effectively improving the reliability of protecting the vehicle body structure and the safety of passengers, which is beneficial to improving user satisfaction.

[0006] According to the front subframe of some embodiments of the present utility model, in the projection along the longitudinal direction of the vehicle, the rear mounting points of both of the two frame longitudinal beams are located between the front mounting points of the two frame longitudinal beams.

[0007] According to the front subframe of some embodiments of the present utility model, the rear mounting points and the front mounting points are staggeredly distributed in the vehicle longitudinal direction; and / or, at least two of the front mounting points are provided in the front region of each frame longitudinal beam.

[0008] According to the front subframe of some embodiments of the present utility model, there are a plurality of the frame cross beams, and the plurality of frame cross beams are connected between the two frame longitudinal beams and are spaced apart along the longitudinal direction of the vehicle.

[0009] According to the front subframe of some embodiments of the present utility model, the frame cross beam further includes a middle cross beam and a rear cross beam, the front cross beam, the middle cross beam and the rear cross beam are spaced apart from each other in sequence along the longitudinal direction of the vehicle, and the rear cross beam is connected between the positions of the two frame longitudinal beams where the rear mounting points are provided.

[0010] According to the front subframe of some embodiments of the present utility model, it further includes rear side connection plates, there are two rear side connection plates which are respectively connected to the rear ends of the two frame longitudinal beams in a one-to-one correspondence, and the rear side connection plates and the corresponding frame longitudinal beams are jointly connected to the vehicle body at the rear mounting points.

[0011] According to the front subframe of some embodiments of the present utility model, the rear side connection plate is further provided with vehicle body connection points, the vehicle body connection points and the rear mounting points are spaced apart from each other, and the rear side connection plate is adapted to be connected to the vehicle body at the vehicle body connection points.

[0012] According to the front subframe of some embodiments of the present utility model, both the frame longitudinal beam and the frame cross beam include an upper plate and a lower plate, both the upper plate and the lower plate are configured in a groove shape, the upper plate and the lower plate are buckled and connected to define an internal cavity, and a reinforcing plate is provided in the internal cavity.

[0013] According to some embodiments of the present utility model, the front subframe further includes a front anti-collision beam, the front anti-collision beam is located at the front of the frame longitudinal beam, and an energy absorption box is provided between the front anti-collision beam and the front end of the frame longitudinal beam; and / or, the frame longitudinal beam is configured such that the front region is higher than the rear region.

[0014] The present utility model also proposes a vehicle.

[0015] The vehicle according to the embodiments of the present utility model is provided with the front subframe described in any one of the above.

[0016] The advantages of the vehicle and the above-mentioned front subframe over the prior art are the same and will not be elaborated here.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a schematic structural view of a front subframe according to an embodiment of the present utility model;

[0020] Figure 2 is a side view of a front subframe according to an embodiment of the present utility model;

[0021] Figure 3 is a schematic sectional view of a front subframe according to an embodiment of the present utility model.

[0022] Reference numerals:

[0023] front subframe 100,

[0024] frame longitudinal beam 1, front mounting point 11, rear mounting point 12, frame cross beam 2, front cross beam 21, middle cross beam 22, rear cross beam 23, rear side connecting plate 3, body connection point 31, upper plate 4, lower plate 5, internal cavity 6, reinforcing plate 7, front anti-collision beam 8, energy absorption box 9, bushing 10, steering knuckle mounting point 13, powertrain mounting system mounting point 14, front mounting point 15 of the lower control arm, rear mounting point 16 of the lower control arm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Unless otherwise specified, the front-rear direction in this application is the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction is the transverse direction of the vehicle, i.e., the Y direction; and the up-down direction is the vertical direction of the vehicle, i.e., the Z direction.

[0029] Next, reference is made to Figures 1 - 3 Describe the front subframe 100 according to an embodiment of the present utility model. By providing the frame cross beam 2 and the frame longitudinal beam 1, the impact force during a frontal or side collision of the vehicle can be absorbed and dispersed. At the same time, both frame longitudinal beams 1 are inclined relative to the longitudinal direction of the vehicle to absorb and disperse the impact force during an offset collision of the vehicle. In addition, by arranging the front cross beam 21 and the front mounting point 11 directly opposite in the transverse direction of the vehicle, the connection reliability between the frame longitudinal beam 1 and the vehicle body can be improved, and further, the working reliability of the frame longitudinal beam 1 can be improved, effectively improving the reliability of protecting the vehicle body structure and passenger safety, which is beneficial to improving user satisfaction.

[0030] AsFigure 1 As shown in Figure 1 , the front subframe 100 according to an embodiment of the present utility model includes: a frame cross member 2 and two frame longitudinal members 1.

[0031] Among them, the frame cross member 2 extends along the vehicle's transverse direction and can be used to absorb and disperse impact force when the vehicle undergoes a frontal collision, so as to protect the vehicle body structure and passenger safety.

[0032] The two frame longitudinal members 1 are spaced apart along the vehicle's transverse direction, and the frame cross member 2 is connected between the two frame longitudinal members 1. Each frame longitudinal member 1 is arranged to extend obliquely relative to the vehicle's longitudinal direction from the rear to the front, and the two frame longitudinal members 1 are configured to incline away from each other from the rear to the front.

[0033] Specifically, the frame longitudinal member 1 extends along the vehicle's longitudinal direction and can be used to absorb and disperse impact force when the vehicle undergoes a side collision, so as to protect the vehicle body structure and passenger safety. Two frame longitudinal members 1 are provided on the front subframe 100, and the impact force during a side collision of the vehicle can be absorbed and dispersed by the two frame longitudinal members 1 together, which can improve the reliability of protecting the vehicle body structure and passenger safety. And by spacing the two frame longitudinal members 1 apart along the vehicle's transverse direction, the impact force during a side collision of the vehicle can be absorbed and dispersed simultaneously from two positions on the vehicle's transverse direction by the two frame longitudinal members 1, further improving the reliability of protecting the vehicle body structure and passenger safety.

[0034] At the same time, the frame cross member 2 is connected between the two frame longitudinal members 1, so that the two frame longitudinal members 1 can be supported and connected by the frame cross member 2, which can ensure the accuracy of the installation positions of the two frame longitudinal members 1, improve the reliability of the frame longitudinal members 1 working, and enable the impact force to be transmitted between the two frame longitudinal members 1 through the frame cross member 2, so as to improve the reliability of absorbing and dispersing the impact force, that is, improve the reliability of protecting the vehicle body structure and passenger safety.

[0035] In addition, by configuring the frame longitudinal member 1 to be inclined relative to the vehicle's longitudinal direction from the rear to the front, there can be a certain included angle between the frame longitudinal member 1 and the vehicle's longitudinal direction. When the vehicle is subjected to an offset collision, the frame longitudinal member 1 can be directly opposite to the impact force of the offset collision, and the impact force of the offset collision can be absorbed and dispersed by the frame longitudinal member 1 from the direction directly opposite to the impact force, which can improve the effect of absorbing and dispersing the impact force of the offset collision, and then protect the vehicle body structure and passenger safety. And by configuring both of the two frame longitudinal members 1 to be inclined relative to the vehicle's longitudinal direction from the rear to the front, the impact force during an offset collision of the vehicle can be absorbed and dispersed by the two frame longitudinal members 1 together, which can improve the reliability of protecting the vehicle body structure and passenger safety.

[0036] Moreover, the two frame side members 1 are configured to incline away from each other from the rear to the front, that is, the two frame side members 1 are in a V-shape, which can increase the area at the front region of the front subframe 100, that is, increase the area for the front subframe 100 to bear the impact force during a side collision, improve the effect of absorbing and dispersing the side impact force, and further improve the reliability of protecting the body structure and passenger safety.

[0037] Among them, the frame side member 1 is provided with a front mounting point 11 located in the front region of the frame side member 1 and a rear mounting point 12 located in the rear region of the frame side member 1. The frame cross member 2 includes a front cross member 21. The two ends of the front cross member 21 are respectively connected to the front regions of the two frame side members 1, and the front cross member 21 and the front mounting point 11 are distributed opposite to each other in the vehicle width direction.

[0038] Specifically, both the front mounting point 11 and the rear mounting point 12 can be used to provide connection positions for connecting the frame side member 1 and the vehicle body. By arranging both the front mounting point 11 and the rear mounting point 12 on the frame side member 1, the frame side member 1 can provide setting positions for the front mounting point 11 and the rear mounting point 12. Furthermore, it is convenient to connect the frame side member 1 and the vehicle body at the front mounting point 11 and the rear mounting point 12, which can improve the connection reliability between the frame side member 1 and the vehicle body. By arranging the front mounting point 11 in the front region of the frame side member 1 and the rear mounting point 12 in the rear region of the frame side member 1, the front mounting point 11 and the rear mounting point 12 can be arranged at intervals, so as to connect the frame side member 1 and the vehicle body from different positions at the same time, which can improve the connection stability between the two.

[0039] In addition, the two frame side members 1 are configured to incline away from each other from the rear to the front, that is, the distance between the two frame side members 1 in the front region is greater than the distance between them in the rear region. By connecting the two ends of the front cross member 21 between the front regions of the two frame side members 1, the front cross member 21 can support and connect the front regions of the two frame side members 1, which can improve the working reliability of the frame side member 1. Moreover, by distributing the front cross member 21 and the front mounting point 11 opposite to each other in the vehicle width direction, the front cross member 21 can be arranged between the front mounting points 11 on the two frame side members 1. Furthermore, the front cross member 21 can support and connect the positions of the two frame side members 1 where the front mounting points 11 are provided, which can improve the local stiffness at the front mounting point 11, and further improve the connection reliability between the front region of the frame side member 1 and the vehicle body, that is, improve the connection reliability between the frame side member 1 and the vehicle body.

[0040] It should be noted that connectors can be used to connect the frame side member 1 and the vehicle body at the front mounting point 11 and the rear mounting point 12. The connection method is simple, reliable and easy to operate.

[0041] Thus, by providing the frame cross member 2, the impact force during a frontal collision of the vehicle can be absorbed and dispersed. By providing the frame longitudinal members 1, the impact force during a side collision of the vehicle can be absorbed and dispersed. Moreover, the two frame longitudinal members 1 are spaced apart to enhance the reliability of protecting the vehicle body structure and passenger safety. At the same time, both of the two frame longitudinal members 1 are configured to be inclined away from each other from the rear to the front to absorb and disperse the impact force during an offset collision of the vehicle, and can increase the area for the front subframe 100 to bear the impact force during a side collision. In addition, by providing the front mounting points 11 and the rear mounting points 12, connection positions can be provided for the connection between the frame longitudinal members 1 and the vehicle body. And by connecting both ends of the front cross member 21 to the front regions of the two frame longitudinal members 1 respectively, the front regions of the two frame longitudinal members 1 can be supported and connected by the front cross member 21, which can enhance the reliability of the frame longitudinal members 1 in working. And by arranging the front cross member 21 and the front mounting points 11 to be directly opposite each other in the vehicle transverse direction, the connection reliability between the frame longitudinal members 1 and the vehicle body can be enhanced.

[0042] For the front subframe 100 according to the embodiment of the present invention, by providing the frame cross member 2 to absorb and disperse the impact force during a frontal collision of the vehicle, by providing two frame longitudinal members 1 to absorb and disperse the impact force during a side collision of the vehicle. At the same time, both of the two frame longitudinal members 1 are inclined relative to the vehicle longitudinal direction to absorb and disperse the impact force during an offset collision of the vehicle, and can increase the area for the front subframe 100 to bear the impact force during a side collision. In addition, by arranging the front cross member 21 and the front mounting points 11 to be directly opposite each other in the vehicle transverse direction, the connection reliability between the frame longitudinal members 1 and the vehicle body can be enhanced, thereby enhancing the reliability of the frame longitudinal members 1 in working, effectively enhancing the reliability of protecting the vehicle body structure and passenger safety, and being beneficial to improving user satisfaction.

[0043] In some embodiments, in the projection along the vehicle longitudinal direction, the rear mounting points 12 of the two frame longitudinal members 1 are both located between the front mounting points 11 of the two frame longitudinal members 1.

[0044] That is to say, when viewed from the front or rear of the vehicle, the rear mounting points 12 of the two frame side members 1 are located between the front mounting points 11 of the two frame side members 1. That is, the distance between the rear mounting points 12 of the two frame side members 1 is less than the distance between the front mounting points 11 of the two frame side members 1. That is, the distance between the two frame side members 1 in the front region is greater than the distance between them in the rear region. Even if the two frame side members 1 are both configured to incline away from each other from the rear to the front, the impact force of the offset collision can be absorbed and dispersed by the frame side members 1 from the direction facing the impact force, which can improve the effect of absorbing and dispersing the impact force of the offset collision, and can increase the area at the front region of the front subframe 100, that is, increase the area for the front subframe 100 to bear the impact force during a side collision, improve the effect of absorbing and dispersing the side impact force, and further improve the reliability of protecting the body structure and passenger safety.

[0045] In some embodiments, the rear mounting points 12 and the front mounting points 11 are staggered in the vehicle longitudinal direction.

[0046] Specifically, both the front mounting points 11 and the rear mounting points 12 can be used to provide connection positions for the connection between the frame side members 1 and the vehicle body. Staggering the rear mounting points 12 and the front mounting points 11 in the vehicle longitudinal direction can space the rear mounting points 12 and the front mounting points 11 apart on the frame side members 1, so as to connect the frame side members 1 and the vehicle body from different positions at the same time, which can improve the connection reliability and connection stability between the two.

[0047] And / or, at least two front mounting points 11 are provided in the front region of each frame side member 1.

[0048] Specifically, by configuring the two frame side members 1 to incline away from each other from the rear to the front, the distance between the front regions of the two frame side members 1 can be made greater than the distance between the rear regions of the two frame side members 1. And the front mounting points 11 can provide connection positions for the connection between the front region of the frame side members 1 and the vehicle body. At least two front mounting points 11 can be provided in the front region of each frame side member 1, that is, the number of front mounting points 11 provided at the front region of each frame side member 1 can be two, three or more, so as to improve the connection strength between the front regions of the two frame side members 1 and the vehicle body and improve the reliability of the frame side members 1 working.

[0049] In such as Figure 1In the illustrated embodiment, the number of front mounting points 11 provided at the front region of each vehicle frame longitudinal beam 1 is two. That is, the front region of the vehicle frame longitudinal beam 1 can be connected to the vehicle body at the two front mounting points 11 simultaneously. Moreover, a total of four front mounting points 11 are provided on the two vehicle frame longitudinal beams 1. That is, the two vehicle frame longitudinal beams 1 can be respectively connected to the vehicle body at the four front mounting points 11, so as to improve the connection reliability and connection stability between the vehicle frame longitudinal beam 1 and the vehicle body.

[0050] In some embodiments, there are multiple vehicle frame cross beams 2, and the multiple vehicle frame cross beams 2 are connected between the two vehicle frame longitudinal beams 1 and are spaced apart along the longitudinal direction of the vehicle.

[0051] Specifically, the vehicle frame cross beam 2 is used to absorb and disperse the impact force when the vehicle undergoes a frontal collision, so as to protect the vehicle body structure and the safety of passengers. The number of vehicle frame cross beams 2 provided can be multiple, that is, the number of vehicle frame cross beams 2 can be two, three or more. Furthermore, the multiple vehicle frame cross beams 2 can jointly absorb and disperse the impact force when the vehicle undergoes a frontal collision, which can improve the reliability of protecting the vehicle body structure and the safety of passengers. At the same time, by connecting the multiple vehicle frame cross beams 2 between the two vehicle frame longitudinal beams 1, the front subframe 100 can be made into a whole, so as to improve the structural strength of the front subframe 100. And the multiple vehicle frame cross beams 2 can support and connect the two vehicle frame longitudinal beams 1 at the same time, so as to improve the accuracy of the installation position of the vehicle frame longitudinal beam 1, and enable the impact force to be transmitted between the two vehicle frame longitudinal beams 1 through the vehicle frame cross beam 2, so as to improve the reliability of absorbing and dispersing the impact force.

[0052] Moreover, by spacing the multiple vehicle frame cross beams 2 at intervals in sequence along the longitudinal direction of the vehicle, the multiple vehicle frame cross beams 2 can absorb and disperse the impact force when the vehicle undergoes a frontal collision from multiple positions at the same time, which can improve the reliability of absorbing and dispersing the impact force.

[0053] In some embodiments, the vehicle frame cross beam 2 further includes a middle cross beam 22 and a rear cross beam 23. The front cross beam 21, the middle cross beam 22 and the rear cross beam 23 are spaced apart along the longitudinal direction of the vehicle in sequence. The rear cross beam 23 is connected between the positions of the two vehicle frame longitudinal beams 1 where the rear mounting points 12 are provided.

[0054] Specifically, in Figure 1In the illustrated embodiment, the number of the vehicle frame cross members 2 is three, and the three vehicle frame cross members 2 are respectively a front cross member 21, a middle cross member 22 and a rear cross member 23. Thus, the front cross member 21, the middle cross member 22 and the rear cross member 23 can jointly absorb and disperse the impact force during a frontal collision of the vehicle. At the same time, the front cross member 21, the middle cross member 22 and the rear cross member 23 are sequentially spaced apart along the longitudinal direction of the vehicle. Thus, the front cross member 21, the middle cross member 22 and the rear cross member 23 can simultaneously absorb and disperse the impact force during a frontal collision of the vehicle from three positions, which can improve the reliability of absorbing and dispersing the impact force. Moreover, the rear cross member 23 is connected between the positions of the two vehicle frame side members 1 where the rear mounting points 12 are provided. Thus, the rear cross member 23 can support and connect the positions of the two vehicle frame side members 1 where the rear mounting points 12 are provided, which can improve the local stiffness at the rear mounting points 12, and further improve the connection reliability between the rear region of the vehicle frame side member 1 and the vehicle body.

[0055] In some embodiments, the front subframe 100 further includes two rear side connection plates 3, which are respectively and correspondingly connected to the rear ends of the two vehicle frame side members 1, and the rear side connection plates 3 and the corresponding vehicle frame side members 1 are jointly connected to the vehicle body at the rear mounting points 12.

[0056] That is to say, the vehicle frame side member 1 and the vehicle body can be further connected through the rear side connection plates 3. The rear side connection plates 3 are provided in two, and the two rear side connection plates 3 correspond to the two vehicle frame side members 1 one by one. That is, for each vehicle frame side member 1, there is a rear side connection plate 3 corresponding thereto to connect the vehicle frame side member 1 and the vehicle body through the corresponding rear side connection plate 3. Moreover, the rear side connection plates 3 are arranged at the rear ends of the vehicle frame side members 1. Thus, the vehicle frame side member 1 and the vehicle body can be further connected through the rear side connection plates 3 at the rear ends of the vehicle frame side members 1, so as to avoid lateral slippage of the vehicle frame side member 1 due to insufficient axial force at the mounting point between the rear end of the vehicle frame side member 1 and the vehicle body.

[0057] Wherein, the rear side connection plates 3 and the corresponding vehicle frame side members 1 are jointly connected to the vehicle body at the rear mounting points 12. Thus, the rear side connection plates 3 and the vehicle frame side members 1 can be connected to the vehicle body through the same connecting piece at the same time, which can reduce the number of connecting pieces used and lower the setting cost. Moreover, the rear side connection plates 3 can be single-plate stamping parts.

[0058] In addition, it should be noted that a rear mounting point 12 is provided on the longitudinal frame member 1, that is, a total of two rear mounting points 12 are provided on the two longitudinal frame members 1. Moreover, bushings 10 are provided at both the front mounting point 11 and the rear mounting point 12, and the structural strength at the front mounting point 11 and the rear mounting point 12 can be enhanced through the bushings 10 to avoid cracking caused by stress concentration. The number of bushings 10 is six, corresponding one-to-one to the front mounting point 11 and the rear mounting point 12, so as to improve the reliability of enhancing the structural strength at the front mounting point 11 and the rear mounting point 12.

[0059] In some embodiments, the rear side connecting plate 3 is further provided with a vehicle body connecting point 31. The vehicle body connecting point 31 and the rear mounting point 12 are spaced apart and distributed. The rear side connecting plate 3 is adapted to be connected to the vehicle body at the vehicle body connecting point 31.

[0060] Specifically, the vehicle body connecting point 31 is used to provide a connection position for the connection between the rear side connecting plate 3 and the vehicle body. The vehicle body connecting point 31 is arranged on the rear side connecting plate 3, that is, the rear side connecting plate 3 can provide a setting position for the vehicle body connecting point 31. Furthermore, it is convenient to connect the rear side connecting plate 3 and the vehicle body at the vehicle body connecting point 31. And the vehicle body connecting point 31 and the rear mounting point 12 are spaced apart, so as to avoid interference between the vehicle body connecting point 31 and the rear mounting point 12, resulting in the inability of the longitudinal frame member 1 or the rear side connecting plate 3 to be connected to the vehicle body. Among them, the rear side connecting plate 3 and the vehicle body can be connected at the vehicle body connecting point 31 through a connecting piece, and the connection method is simple, reliable and easy to operate.

[0061] In addition, it should be noted that as Figure 1 shown, two vehicle body connecting points 31 are arranged on the rear side connecting plate 3 along the vehicle transverse direction, that is, the rear side connecting plate 3 and the vehicle body can be connected at the two vehicle body connecting points 31 at the same time to improve the connection reliability and connection stability between the two. And a total of four vehicle body connecting points 31 are provided on the two rear side connecting plates 3, and the two rear side connecting plates 3 can be respectively connected to the vehicle body at the four vehicle body connecting points 31 at the same time to respectively improve the connection reliability and connection stability between the two rear side connecting plates 3 and the vehicle body.

[0062] In some embodiments, both the longitudinal frame member 1 and the transverse frame member 2 of the vehicle frame include an upper plate 4 and a lower plate 5. The upper plate 4 and the lower plate 5 are both configured in a groove shape. The upper plate 4 and the lower plate 5 are buckled and connected to define an internal cavity 6, and a reinforcing plate 7 is provided in the internal cavity 6.

[0063] Specifically, as Figures 2 - 3As shown, the longitudinal frame beam 1 and the cross frame beam 2 of the vehicle frame both include an upper plate 4 and a lower plate 5. Thus, the impact force during a frontal or lateral collision of the vehicle can be absorbed and dispersed by the upper plate 4 and the lower plate 5 together. Moreover, by constructing both the upper plate 4 and the lower plate 5 into a groove shape, the cross section of the upper plate 4 and the lower plate 5 can be made U-shaped, which can improve the structural strength of the upper plate 4 and the lower plate 5. At the same time, the upper plate 4 and the lower plate 5 are buckled and connected to make the longitudinal frame beam 1 and the cross frame beam 2 each form an integral body, so as to improve the structural strength of the longitudinal frame beam 1 and the cross frame beam 2. And the upper plate 4 and the lower plate 5 define an internal cavity 6, so that the impact force can be transmitted and diffused in the internal cavity 6, thereby improving the reliability of the longitudinal frame beam 1 and the cross frame beam 2 in absorbing and dispersing the impact force. In addition, a reinforcing plate 7 is arranged in the internal cavity 6, so that the structural strength of the longitudinal frame beam 1 and the cross frame beam 2 can be further improved by the reinforcing plate 7, and further, the reliability of the longitudinal frame beam 1 and the cross frame beam 2 in absorbing and dispersing the impact force can be effectively improved.

[0064] In addition, it should be noted that the structural strength of the longitudinal frame beam 1 and the cross frame beam 2 can also be enhanced by increasing the thickness of the upper plate 4 and the lower plate 5.

[0065] In some embodiments, the front subframe 100 further includes a front anti-collision beam 8. The front anti-collision beam 8 is located at the front of the longitudinal frame beam 1, and an energy absorption box 9 is provided between the front end of the front anti-collision beam 8 and the longitudinal frame beam 1.

[0066] Specifically, by arranging the front anti-collision beam 8 at the front of the longitudinal frame beam 1, the front anti-collision beam 8 can be arranged at the very front of the vehicle, so as to absorb and disperse the impact force during a frontal collision of the vehicle, thereby protecting the body structure and the safety of passengers. At the same time, an energy absorption box 9 is also arranged on the front subframe 100. The impact force during the vehicle collision can be further absorbed by the energy absorption box 9. And by arranging the energy absorption box 9 between the front anti-collision beam 8 and the longitudinal frame beam 1, the impact forces on both the front anti-collision beam 8 and the longitudinal frame beam 1 can be absorbed by the energy absorption box 9, so as to effectively improve the reliability of protecting the body structure and the safety of passengers, and the number of energy absorption boxes 9 can be reduced, and the installation cost can be lowered.

[0067] In the embodiment as Figures 1 - 2 shown, energy absorption boxes 9 are arranged at both ends of the front anti-collision beam 8. Thus, the impact force can be absorbed by the two energy absorption boxes 9 at the same time, effectively improving the reliability of absorbing the impact force. And one end of the energy absorption box 9 is connected to the front anti-collision beam 8, and the other end extends into the internal cavity 6 formed by the longitudinal frame beam 1, so as to realize the installation and fixation of the energy absorption box 9. Furthermore, the reliability of the energy absorption box 9 in working can be improved, and the collapse direction of the energy absorption box 9 can be made the same as the extension direction of the front region of the longitudinal frame beam 1, so as to improve the working efficiency of the energy absorption box 9 and further improve the reliability of protecting the body structure and the safety of passengers.

[0068] Among them, the front anti-collision beam 8 can be made of aluminum by extrusion molding and welding, and the front anti-collision beam 8 can be made arc-shaped to increase the protection range of the vehicle body structure and improve the reliability of protecting the vehicle body structure and passenger safety.

[0069] And / or, the longitudinal frame member 1 is configured such that the front region is higher than the rear region.

[0070] Specifically, as Figure 2 shown, the longitudinal frame member 1 extends along the longitudinal direction of the vehicle. Configuring the longitudinal frame member 1 such that the front region is higher than the rear region can make the longitudinal frame member 1 in a Z shape to avoid the tire envelope and various components in the powertrain transmission system, and prevent interference between the longitudinal frame member 1 and the tire envelope or various components in the powertrain transmission system, resulting in the inability to install the longitudinal frame member 1.

[0071] Among them, it should be noted that the height difference between the front region and the rear region of the longitudinal frame member 1 can be 30 - 80 mm, that is, the height difference needs to be controlled within a certain range. If the height difference is too large, the height of the longitudinal frame member 1 will be too large, which is not conducive to the layout of the longitudinal frame member 1 on the vehicle. If the height difference is too small, the clearance for avoiding the tire envelope or various components in the powertrain transmission system will be insufficient, resulting in interference between the longitudinal frame member 1 and the tire envelope or various components in the powertrain transmission system.

[0072] In addition, it should be noted that during actual design, only one of the longitudinal frame members 1 can be inclined and extended from the rear to the front relative to the longitudinal direction of the vehicle, or both longitudinal frame members 1 can be inclined and extended from the rear to the front relative to the longitudinal direction of the vehicle to absorb and disperse the impact force during a vehicle offset collision, thereby protecting the vehicle body structure and passenger safety.

[0073] And, as Figure 1 shown, four front lower arm mounting points 15 and four rear lower arm mounting points 16 are respectively provided on the front subframe 100. Thus, the connection between the front subframe 100 and the lower arm can be achieved simultaneously through the four front lower arm mounting points 15 and the four rear lower arm mounting points 16, and the connection reliability and connection stability between the two can be improved. At the same time, three knuckle mounting points 13 are provided on the front subframe 100. Thus, the connection between the front subframe 100 and the knuckle can be achieved simultaneously through the three knuckle mounting points 13, and the connection reliability and connection stability between the two can be improved. In addition, two powertrain mount system mounting points 14 are provided on the front subframe 100. Thus, the connection between the front subframe 100 and the powertrain mount system can be achieved simultaneously through the two powertrain mount system mounting points 14, and the connection reliability and connection stability between the two can be improved.

[0074] Furthermore, when the vehicle is subjected to an offset collision, the energy-absorbing box 9 collapses, the front area of the vehicle frame longitudinal beam 1 bends and deforms, and the lower control arm and the front subframe 100 are separated due to the force at the front mounting point 15 of the lower control arm. As a result, the wheel will swing outwards of the vehicle with the steering knuckle and the lower control arm to prevent the wheel from invading the cab and causing harm to the passengers, thereby improving the safety performance of the vehicle.

[0075] The present utility model also provides a vehicle.

[0076] The vehicle according to the embodiment of the present utility model is provided with the front subframe 100 as described in any one of the above. By providing the vehicle frame cross beam 2 to absorb and disperse the impact force during a frontal collision of the vehicle, and by providing two vehicle frame longitudinal beams 1 to absorb and disperse the impact force during a side collision of the vehicle. At the same time, both of the two vehicle frame longitudinal beams 1 are inclined relative to the vehicle longitudinal direction to absorb and disperse the impact force during an offset collision of the vehicle, and the area for the front subframe 100 to bear the impact force during a side collision can be increased. Moreover, by arranging the front cross beam 21 and the front mounting point 11 to be directly opposite each other in the vehicle transverse direction, the connection reliability between the vehicle frame longitudinal beam 1 and the vehicle body can be improved, and further the working reliability of the vehicle frame longitudinal beam 1 can be improved, effectively improving the reliability of protecting the vehicle body structure and the safety of the passengers, which is beneficial to improving the user satisfaction.

[0077] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" etc. 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 utility model. In this specification, the schematic representations of the above terms do 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.

[0078] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A front subframe, characterized in that: include: Frame cross members; Two frame longitudinal beams, the two frame longitudinal beams are spaced apart and distributed in the transverse direction of the vehicle, the frame cross beam is connected between the two frame longitudinal beams, each of the frame longitudinal beams is arranged to extend obliquely relative to the longitudinal direction of the vehicle from rear to front, and the two frame longitudinal beams are configured to be inclined from rear to front in a direction away from each other; The frame longitudinal beam is provided with a front mounting point located in the front area of ​​the frame longitudinal beam and a rear mounting point located in the rear area of ​​the frame longitudinal beam, and the frame cross beam includes a front cross beam, both ends of the front cross beam are respectively connected to the front areas of the two frame longitudinal beams, and the front cross beam and the front mounting point are distributed opposite to each other in the transverse direction of the vehicle.

2. The front subframe according to claim 1, characterized in that: In a projection along the longitudinal direction of the vehicle, the rear mounting points of the two frame longitudinal rails are both located between the front mounting points of the two frame longitudinal rails.

3. The front subframe according to claim 1, characterized in that: The rear mounting point and the front mounting point are staggered in the longitudinal direction of the vehicle; And / or, the front region of each frame rail is provided with at least two front mounting points.

4. The front subframe according to claim 1, characterized in that: There are a plurality of frame cross beams, and the plurality of frame cross beams are connected between two frame longitudinal beams and are spaced apart and distributed along the longitudinal direction of the vehicle.

5. The front subframe according to claim 1, characterized in that: The frame cross beam further includes a middle cross beam and a rear cross beam. The front cross beam, the middle cross beam and the rear cross beam are sequentially spaced apart and distributed along the longitudinal direction of the vehicle. The rear cross beam is connected between the positions where the two frame longitudinal beams are provided with the rear mounting points.

6. The front subframe according to claim 1, characterized in that: It also includes a rear connecting plate, wherein two rear connecting plates are connected to the rear ends of the two frame longitudinal beams in a one-to-one correspondence, and the rear connecting plate and the corresponding frame longitudinal beam are connected to the vehicle body at the rear mounting point.

7. The front subframe according to claim 6, characterized in that: The rear side connecting plate is also provided with a vehicle body connecting point, which is spaced apart from the rear mounting point, and the rear side connecting plate is suitable for being connected to the vehicle body at the vehicle body connecting point.

8. The front subframe according to claim 1 or 2, characterized in that: The frame longitudinal beam and the frame cross beam both include an upper plate and a lower plate, the upper plate and the lower plate are both configured in a groove shape, the upper plate and the lower plate are buckled and connected to define an internal cavity, and a reinforcing plate is arranged in the internal cavity.

9. The front subframe according to claim 1 or 2, characterized in that: It also includes a front anti-collision beam, the front anti-collision beam is located in front of the frame longitudinal beam, and an energy absorption box is provided between the front anti-collision beam and the front end of the frame longitudinal beam; And / or, the frame longitudinal beam is configured so that a front region is higher than a rear region.

10. A vehicle, characterized in that: A front subframe according to any one of claims 1 to 9 is provided.

Images