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 the transverse direction of the vehicle in a spaced mode, and the vehicle frame cross beam is connected between the two vehicle frame longitudinal beams; wherein each frame longitudinal beam is arranged to obliquely extend relative to the longitudinal direction of the vehicle from back to front, a front mounting space is formed between the front areas of the two frame longitudinal beams, and the width of the front mounting space in the transverse direction of the vehicle is arranged to be gradually increased from back to front in the longitudinal direction of the vehicle; and the ratio of the front width of the front mounting space to the rear width of the front mounting space is 1.4-1.8. According to the front auxiliary frame provided by the embodiment of the utility model, the frame longitudinal beam is obliquely arranged relative to the longitudinal direction of the vehicle, so that the impact force during offset collision of the vehicle can be absorbed and dispersed, the ratio of the front width of the front mounting space to the rear width of the front mounting space is 1.4-1.8, the working reliability of the frame longitudinal beam can be improved, and the service life of the frame longitudinal beam is prolonged. And the vehicle body structure and the safety of passengers are protected.

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. Especially, the automotive industry is developing rapidly with increasingly fierce competition. The trend of new energy vehicles is constantly moving forward. From traditional fuel vehicles to mild hybrid vehicles, plug-in hybrid vehicles and pure electric vehicles, vehicle safety has always been highly concerned by people. Vehicle 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 solve at least 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, and can absorb and disperse the impact force during the offset collision of the vehicle, and can improve the reliability of the working of the frame longitudinal beam, effectively improve the reliability of protecting the body structure and the safety of passengers, and is beneficial to improving user satisfaction.

[0004] The front subframe according to an embodiment of the utility model includes: a frame cross beam; two frame longitudinal beams which are spaced apart along the vehicle transverse direction, and the frame cross beam is connected between the two frame longitudinal beams; wherein, each of the frame longitudinal beams is arranged to extend obliquely relative to the vehicle longitudinal direction from the rear to the front, and an anterior installation space is formed between the front regions of the two frame longitudinal beams. The width of the anterior installation space in the vehicle transverse direction is arranged to gradually increase from the rear to the front along the vehicle longitudinal direction, and the ratio of the anterior width to the posterior width of the anterior installation space is 1.4 - 1.8.

[0005] The front subframe according to an embodiment of the utility model absorbs and disperses the impact force during the frontal collision of the vehicle by arranging the frame cross beam, absorbs and disperses the impact force during the side collision of the vehicle by arranging the two frame longitudinal beams, and arranges the two frame longitudinal beams to be inclined relative to the vehicle longitudinal direction to absorb and disperse the impact force during the offset collision of the vehicle. Moreover, by making the ratio of the anterior width to the posterior width of the anterior installation space be 1.4 - 1.8, it is possible to utilize the frame longitudinal beam to bear the impact force during the offset collision on the premise of ensuring the setting of the frame longitudinal beam, improve the reliability of the working of the frame longitudinal beam, effectively improve the reliability of protecting the body structure and the safety of passengers, and is beneficial to improving user satisfaction.

[0006] According to the front subframe of some embodiments of the present utility model, a rear space is further formed between the rear regions of the two frame longitudinal beams; there are a plurality of frame cross beams, a part of the frame cross beams among the plurality of frame cross beams are located in the front mounting space, and another part of the frame cross beams among the plurality of frame cross beams are located in the rear space, and the extension length of the frame cross beam located in the front mounting space is greater than the extension length of the frame cross beam located in the rear space.

[0007] According to the front subframe of some embodiments of the present utility model, there are three frame cross beams, namely a front cross beam, a middle cross beam and a rear cross beam respectively. 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. The front cross beam is located in the front mounting space, and the middle cross beam and the rear cross beam are located in the rear space.

[0008] According to the front subframe of some embodiments of the present utility model, the length of the front cross beam is greater than the length of the middle cross beam, and the length of the middle cross beam is less than or equal to the length of the rear cross beam.

[0009] According to the front subframe of some embodiments of the present utility model, the frame longitudinal beam is provided with a first vehicle body mounting point, and the frame longitudinal beam is adapted to be connected to the vehicle body at the first vehicle body mounting point; wherein, there are a plurality of the first vehicle body mounting points, and the plurality of the first vehicle body mounting points are spaced apart from each other along the longitudinal direction of the vehicle on the frame longitudinal beam.

[0010] According to the front subframe of some embodiments of the present utility model, it further includes rear side connecting plates. There are two rear side connecting plates, which are respectively and correspondingly connected to the rear ends of the two frame longitudinal beams, and the rear side connecting plates are adapted to be connected to the corresponding frame longitudinal beams and the vehicle body at the same first vehicle body mounting point.

[0011] According to the front subframe of some embodiments of the present utility model, the rear side connecting plate is further provided with a second vehicle body mounting point, and the second vehicle body mounting point is spaced apart from the first vehicle body mounting point, and the rear side connecting plate is adapted to be connected to the vehicle body at the second vehicle body mounting point.

[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. 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.

[0013] According to the front subframe of some embodiments of the present utility model, it 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 arranged 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 provides a vehicle.

[0015] The vehicle according to the embodiment 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] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned 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 apparent and be readily understood 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 Signs:

[0023] front subframe 100,

[0024] frame longitudinal beam 1, first vehicle body mounting point 11, front mounting space 12, rear space 17, frame cross beam 2, front cross beam 21, middle cross beam 22, rear cross beam 23, rear side connecting plate 3, second vehicle body mounting 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 of lower control arm 15, rear mounting point of lower control arm 16. 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 drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting 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 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 to 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 defined, 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 circumstances.

[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] The following refers 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. And by arranging the frame longitudinal beam 1 to be inclined relative to the longitudinal direction of the vehicle, the impact force during an offset collision of the vehicle can be absorbed and dispersed, and the reliability of the work of the frame longitudinal beam 1 can be improved, effectively improving the reliability of protecting the body structure and passenger safety, which is beneficial to improving user satisfaction.

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

[0031] Among them, the frame cross beam 2 extends along the transverse direction of the vehicle and can be used to absorb and disperse the impact force during a frontal collision of the vehicle to protect the body structure and passenger safety.

[0032] The two frame longitudinal beams 1 are spaced apart along the transverse direction of the vehicle, and the frame cross beam 2 is connected between the two frame longitudinal beams 1.

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

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

[0035] Wherein, each longitudinal frame member 1 is arranged to extend obliquely relative to the longitudinal direction of the vehicle from the rear to the front. The front regions of the two longitudinal frame members 1 are configured to incline away from each other from the rear to the front. An anterior mounting space 12 is formed between the front regions of the two longitudinal frame members 1. The width of the anterior mounting space 12 in the transverse direction of the vehicle is set to gradually increase from the rear to the front along the longitudinal direction of the vehicle, and the ratio of the anterior width to the posterior width of the anterior mounting space 12 is 1.4 to 1.8.

[0036] Specifically, the longitudinal frame member 1 is configured to be obliquely arranged relative to the longitudinal direction of the vehicle from the rear to the front, so that there is a certain included angle between the longitudinal frame member 1 and the longitudinal direction of the vehicle. When the vehicle is subjected to an offset collision, the longitudinal frame member 1 can be directly opposite to the impact force of the offset collision. The impact force of the offset collision can be absorbed and dispersed by the longitudinal frame 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 thus protect the body structure and passenger safety. Moreover, the front regions of the two longitudinal frame members 1 are both configured to be obliquely arranged relative to the longitudinal direction of the vehicle from the rear to the front. The impact forces generated during an offset collision of the vehicle can be absorbed and dispersed by the two longitudinal frame members 1 together, which can improve the reliability of protecting the body structure and passenger safety.

[0037] Meanwhile, the front regions of the two vehicle frame side members 1 are configured to be inclined away from each other from the rear to the front, that is, the two vehicle frame side members 1 are in a V-shape at the front regions, 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 vehicle body structure and passenger safety.

[0038] In addition, a front mounting space 12 is formed between the two vehicle frame side members 1, and the width of the front mounting space 12 in the vehicle transverse direction gradually increases from the rear to the front along the vehicle longitudinal direction. That is, the front mounting space 12 can be formed between the front regions of the two vehicle frame side members 1, which also means that the front regions of the two vehicle frame side members 1 are both inclined relative to the vehicle longitudinal direction. In this way, the vehicle frame side members 1 can absorb and disperse the offset collision impact force from the direction directly facing the impact force, improve the effect of absorbing and dispersing the offset collision impact force, and increase the area at the front mounting space 12, 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 avoid the vehicle frame side members 1 breaking and failing due to stress concentration, thus improving the reliability of the vehicle frame side members 1 in working.

[0039] Among them, the front regions of the two vehicle frame side members 1 are both inclined away from each other from the rear to the front, which can make the front width of the front mounting space 12 greater than the rear width of the front mounting space 12, and the difference between the front width and the rear width should not be too large or too small. That is, the ratio of the front width to the rear width should not be too large or too small. If it is too large, the inclination angle of the vehicle frame side members 1 will be too large, which is not conducive to the setting of the vehicle frame side members 1 on the vehicle. If it is too small, the inclination angle of the vehicle frame side members 1 will be too small, and the ability to bear the offset collision impact force will be weakened. The ratio of the front width to the rear width of the front mounting space 12 can be 1.4 - 1.8, that is, the ratio can be 1.4, 1.5 or 1.7, etc., so as to utilize the vehicle frame side members 1 to bear the offset collision impact force on the premise of ensuring the setting of the vehicle frame side members 1 and protect the vehicle body structure and passenger safety.

[0040] 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 improve the reliability of protecting the vehicle body structure and passenger safety. In addition, the two frame longitudinal members 1 are each 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 by making the ratio of the front width to the rear width of the front mounting space 12 be 1.4 to 1.8, the impact force during an offset collision can be borne by the frame longitudinal members 1 on the premise of ensuring the arrangement of the frame longitudinal members 1.

[0041] According to the front subframe 100 of 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, and by arranging the two frame longitudinal members 1 to be inclined relative to the vehicle longitudinal direction to absorb and disperse the impact force during an offset collision of the vehicle. In addition, by making the ratio of the front width to the rear width of the front mounting space 12 be 1.4 to 1.8, the impact force during an offset collision can be borne by the frame longitudinal members 1 on the premise of ensuring the arrangement of the frame longitudinal members 1, the reliability of the operation of the frame longitudinal members 1 can be improved, the reliability of protecting the vehicle body structure and passenger safety can be effectively improved, and it is beneficial to improve user satisfaction.

[0042] In some embodiments, a rear space 17 is further formed between the rear regions of the two frame longitudinal members 1; there are multiple frame cross members 2, a part of the multiple frame cross members 2 is located in the front mounting space 12, and another part of the multiple frame cross members 2 is located in the rear space 17, and the extension length of the frame cross members 2 located in the front mounting space 12 is greater than the extension length of the frame cross members 2 located in the rear space 17.

[0043] Specifically, the frame cross member 2 is used to absorb and disperse the impact force during a frontal collision of the vehicle to protect the vehicle body structure and passenger safety. The number of the frame cross members 2 provided can be multiple, that is, the number of the frame cross members 2 provided can be two, three or more. Further, the impact force during a frontal collision of the vehicle can be absorbed and dispersed by the multiple frame cross members 2 together, and the reliability of protecting the vehicle body structure and passenger safety can be improved.

[0044] Meanwhile, a front mounting space 12 and a rear space 17 are formed between the two vehicle frame longitudinal beams 1. By arranging a part of the plurality of vehicle frame cross beams 2 in the front mounting space 12 and the other part of the vehicle frame cross beams 2 in the rear space 17, all the plurality of vehicle frame cross beams 2 can be arranged between the two vehicle frame longitudinal beams 1. Moreover, both ends of each vehicle frame cross beam 2 are respectively connected to the two vehicle frame longitudinal beams 1, so that the front sub-frame 100 can be made into an integral body, thereby enhancing the structural strength of the front sub-frame 100. At the same time, the two vehicle frame longitudinal beams 1 can be supported and connected by the plurality of vehicle frame cross beams 2, thereby enhancing the accuracy of the installation position of the vehicle frame longitudinal beams 1 and enabling the impact force to be transmitted between the two vehicle frame longitudinal beams 1 through the vehicle frame cross beams 2, so as to enhance the reliability of absorbing and dispersing the impact force.

[0045] In addition, the extension length of the vehicle frame cross beam 2 located in the front mounting space 12 is greater than that of the vehicle frame cross beam 2 located in the rear space 17, so that the distance between the two vehicle frame longitudinal beams 1 in the front region is greater than that in the rear region, and the two vehicle frame longitudinal beams 1 can be inclined away from each other from the rear to the front, thereby absorbing and dispersing the impact force during a vehicle offset collision through the two vehicle frame longitudinal beams 1.

[0046] In some embodiments, there are three vehicle frame cross beams 2, namely a front cross beam 21, 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 from each other in sequence along the vehicle longitudinal direction. The front cross beam 21 is located in the front mounting space 12, and the middle cross beam 22 and the rear cross beam 23 are located in the rear space 17.

[0047] Specifically, in the embodiment as Figure 1 shown, the number of the vehicle frame cross beams 2 is three, and the three vehicle frame cross beams 2 are spaced apart from each other along the vehicle longitudinal direction. Thus, the impact force during a vehicle frontal collision can be absorbed simultaneously from three positions by the three vehicle frame cross beams 2, thereby enhancing the reliability of protecting the vehicle body structure and passenger safety. Moreover, the three vehicle frame cross beams 2 are respectively the front cross beam 21, the middle cross beam 22 and the rear cross beam 23, and the front cross beam 21, the middle cross beam 22 and the rear cross beam 23 are spaced apart from each other in sequence along the vehicle longitudinal direction. Therefore, the impact force during a vehicle frontal collision can be absorbed and dispersed simultaneously from three positions by the front cross beam 21, the middle cross beam 22 and the rear cross beam 23, and the reliability of absorbing and dispersing the impact force can be enhanced.

[0048] Moreover, by disposing the front cross member 21 within the front mounting space 12, the front regions of the two vehicle frame side members 1 can be supported and connected by the front cross member 21. By disposing the middle cross member 22 and the rear cross member 23 within the rear space 17, the rear regions of the two vehicle frame side members 1 can be supported and connected by the middle cross member 22 and the rear cross member 23 simultaneously. This can ensure the accuracy of the mounting positions of the two vehicle frame side members 1, improve the reliability of the operation of the vehicle frame side members 1, and enable the impact force to be transmitted between the two vehicle frame side members 1 through the vehicle frame cross members 2, thereby enhancing the reliability of absorbing and dispersing the impact force, that is, enhancing the reliability of protecting the vehicle body structure and passenger safety.

[0049] In some embodiments, the length of the front cross member 21 is greater than the length of the middle cross member 22, and the length of the middle cross member 22 is less than or equal to the length of the rear cross member 23.

[0050] Specifically, by disposing the front cross member 21 within the front mounting space 12, disposing the middle cross member 22 and the rear cross member 23 within the rear space 17, and making the length of the front cross member 21 greater than the length of the middle cross member 22, the distance between the two vehicle frame side members 1 at the front cross member 21 can be made greater than the distance between them at the middle cross member 22, that is, the distance between the two vehicle frame side members 1 in the front region is greater than the distance between them in the rear region. Thus, the front regions of the two vehicle frame side members 1 can be configured to be inclined away from each other from the rear to the front, so as to absorb and disperse the impact force during an offset collision through the vehicle frame side members 1.

[0051] Meanwhile, by making the length of the middle cross member 22 less than or equal to the length of the rear cross member 23, the distance between the two vehicle frame side members 1 at the middle cross member 22 can be made less than or equal to the distance between them at the rear cross member 23. Thus, the rear regions of the two vehicle frame side members 1 can either extend along the longitudinal direction of the vehicle or be configured to be inclined away from each other from the front to the rear, enabling the vehicle frame side members 1 to absorb and disperse the impact force during a vehicle collision, and thus protecting the vehicle body structure and passenger safety.

[0052] In some embodiments, the vehicle frame side member 1 is provided with a first vehicle body mounting point 11, and the vehicle frame side member 1 is adapted to be connected to the vehicle body at the first vehicle body mounting point 11.

[0053] Specifically, the first vehicle body mounting point 11 is used to provide a connection position for the connection between the vehicle frame side member 1 and the vehicle body. By disposing the first vehicle body mounting point 11 on the vehicle frame side member 1, the vehicle frame side member 1 can provide a setting position for the first vehicle body mounting point 11, thereby facilitating the connection between the vehicle frame side member 1 and the vehicle body at the first vehicle body mounting point 11.

[0054] Among them, it should be noted that, as Figure 1As shown, a bushing 10 is provided at the first vehicle body mounting point 11. The structural strength at the first vehicle body mounting point 11 can be enhanced through the bushing 10 to avoid cracking caused by stress concentration. Moreover, a connecting member can be used to connect the longitudinal beam 1 of the vehicle frame to the vehicle body at the first vehicle body mounting point 11. The connection method is simple, reliable, and easy to operate.

[0055] Among them, there are multiple first vehicle body mounting points 11, and the multiple first vehicle body mounting points 11 are spaced apart along the longitudinal direction of the vehicle and distributed on the longitudinal beam 1 of the vehicle frame.

[0056] Specifically, the number of the first vehicle body mounting points 11 can be set to be multiple, that is, the number of the first vehicle body mounting points 11 can be two, three, or more. Furthermore, the longitudinal beam 1 of the vehicle frame and the vehicle body can be connected at multiple first vehicle body mounting points 11 simultaneously to improve the connection reliability between them. And by arranging the multiple first vehicle body mounting points 11 at intervals along the longitudinal direction of the vehicle, the longitudinal beam 1 of the vehicle frame and the vehicle body can be connected at multiple first vehicle body mounting points 11 along the longitudinal direction of the vehicle simultaneously, which can improve the connection stability between them and make the force balanced to avoid tilting.

[0057] Exemplarily, as Figure 1 shown, three first vehicle body mounting points 11 are arranged along the longitudinal direction of the vehicle on the longitudinal beam 1 of the vehicle frame. Thus, the longitudinal beam 1 of the vehicle frame and the vehicle body can be connected at the three first vehicle body mounting points 11 simultaneously to improve the connection reliability and connection stability between them. And a total of six first vehicle body mounting points 11 are provided on the two longitudinal beams 1 of the vehicle frame. At the same time, the number of the bushings 10 is also six, and they correspond to the six first vehicle body mounting points 11 one by one to improve the reliability of enhancing the structural strength at the first vehicle body mounting points 11.

[0058] In some embodiments, the front subframe 100 further includes two rear side connecting plates 3. The two rear side connecting plates 3 are correspondingly connected to the rear ends of the two longitudinal beams 1 of the vehicle frame, and the rear side connecting plates 3 are adapted to be connected to the vehicle body at the same first vehicle body mounting point 11 as the corresponding longitudinal beam 1 of the vehicle frame.

[0059] That is to say, the longitudinal beam 1 of the vehicle frame and the vehicle body can be further connected through the rear side connecting plates 3. The two rear side connecting plates 3 are provided, and the two rear side connecting plates 3 correspond to the two longitudinal beams 1 of the vehicle frame one by one. That is, for each longitudinal beam 1 of the vehicle frame, there is a rear side connecting plate 3 corresponding to it to connect the longitudinal beam 1 of the vehicle frame and the vehicle body through the corresponding rear side connecting plate 3. And by arranging the rear side connecting plates 3 at the rear ends of the longitudinal beams 1 of the vehicle frame, the longitudinal beam 1 of the vehicle frame and the vehicle body can be further connected through the rear side connecting plates 3 at the rear ends of the longitudinal beams 1 of the vehicle frame to avoid lateral slippage of the longitudinal beam 1 of the vehicle frame due to insufficient axial force at the mounting point between the rear end of the longitudinal beam 1 of the vehicle frame and the vehicle body.

[0060] Among them, the rear side connecting plate 3 and the corresponding vehicle frame longitudinal beam 1 are connected to the vehicle body at the same first vehicle body mounting point 11, so that the rear side connecting plate 3 and the vehicle frame longitudinal beam 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 the setting cost, and the rear side connecting plate 3 can be a single-piece stamping part.

[0061] In some embodiments, the rear side connecting plate 3 is further provided with a second vehicle body mounting point 31, and the second vehicle body mounting point 31 is spaced apart from the first vehicle body mounting point 11, and the rear side connecting plate 3 is adapted to be connected to the vehicle body at the second vehicle body mounting point 31.

[0062] Specifically, the second vehicle body mounting point 31 is used to provide a connection position for the connection between the rear side connecting plate 3 and the vehicle body. By arranging the second vehicle body mounting point 31 on the rear side connecting plate 3, even if the rear side connecting plate 3 can provide a setting position for the second vehicle body mounting point 31, it is then convenient to connect the rear side connecting plate 3 and the vehicle body at the second vehicle body mounting point 31. And by arranging the second vehicle body mounting point 31 and the first vehicle body mounting point 11 at intervals, it is possible to avoid interference between the second vehicle body mounting point 31 and the first vehicle body mounting point 11, resulting in the inability of the vehicle frame longitudinal beam 1 or the rear side connecting plate 3 to be connected to the vehicle body. Among them, the rear side connecting plate 3 can be connected to the vehicle body at the second vehicle body mounting point 31 through a connecting piece, and the connection method is simple, reliable and easy to operate.

[0063] And it should be noted that, as Figure 1 shown, two second vehicle body mounting points 31 are arranged on the rear side connecting plate 3 along the vehicle transverse direction, so that the rear side connecting plate 3 can be connected to the vehicle body at the two second vehicle body mounting points 31 at the same time to improve the connection reliability and connection stability between the two. And a total of four second vehicle body mounting points 31 are arranged 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 second vehicle body mounting 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.

[0064] In some embodiments, both the vehicle frame longitudinal beam 1 and the vehicle frame cross beam 2 include an upper plate 4 and a lower plate 5. The upper plate 4 and the lower plate 5 are both constructed 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 arranged in the internal cavity 6.

[0065] Specifically, as Figures 2 - 3As shown, both the longitudinal frame beam 1 and the cross frame beam 2 include an upper plate 4 and a lower plate 5. Thus, the impact force during a forward 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 in a U shape, 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 so that the longitudinal frame beam 1 and the cross frame beam 2 can each form an integral body, thereby improving 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.

[0066] 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.

[0067] 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-absorbing box 9 is provided between the front anti-collision beam 8 and the front end of the longitudinal frame beam 1.

[0068] 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 forward collision of the vehicle, thereby protecting the body structure and the safety of passengers. At the same time, an energy-absorbing box 9 is also arranged on the front subframe 100. The impact force during the vehicle collision can be further absorbed by the energy-absorbing box 9. And by arranging the energy-absorbing 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-absorbing box 9, so as to effectively improve the reliability of protecting the body structure and the safety of passengers, and the number of energy-absorbing boxes 9 can be reduced, and the installation cost can be lowered.

[0069] In the embodiment as Figures 1 - 2 shown, energy-absorbing 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-absorbing boxes 9 at the same time, effectively improving the reliability of absorbing the impact force. And one end of the energy-absorbing 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 to realize the installation and fixation of the energy-absorbing box 9. Furthermore, the reliability of the energy-absorbing box 9 in working can be improved, and the collapse direction of the energy-absorbing box 9 can be the same as the extending direction of the front region of the longitudinal frame beam 1, so as to improve the working efficiency of the energy-absorbing box 9 and further improve the reliability of protecting the body structure and the safety of passengers.

[0070] 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.

[0071] And / or, the longitudinal frame member 1 is configured such that the front region is higher than the rear region.

[0072] 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 inability to install the longitudinal frame member 1.

[0073] 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, it will lead to too large a height of the longitudinal frame member 1, which is not conducive to the layout of the longitudinal frame member 1 on the vehicle. If the height difference is too small, it will lead to insufficient clearance for avoiding the tire envelope or various components in the powertrain transmission system, causing interference between the longitudinal frame member 1 and the tire envelope or various components in the powertrain transmission system.

[0074] Also, it should be noted that in 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.

[0075] 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.

[0076] 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, thus improving the safety performance of the vehicle.

[0077] The present utility model also provides a vehicle.

[0078] 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, by providing two vehicle frame longitudinal beams 1 to absorb and disperse the impact force during a side collision of the vehicle, and by arranging both of the two vehicle frame longitudinal beams 1 to be inclined relative to the longitudinal direction of the vehicle to absorb and disperse the impact force during an offset collision of the vehicle, and by making the ratio of the front width to the rear width of the front mounting space 12 be 1.4 to 1.8, it is possible to utilize the vehicle frame longitudinal beam 1 to withstand the impact force during an offset collision on the premise of ensuring that the vehicle frame longitudinal beam 1 can be arranged, improve the reliability of the operation of the vehicle frame longitudinal beam 1, effectively improve the reliability of protecting the vehicle body structure and the safety of passengers, and is beneficial to improving user satisfaction.

[0079] In the description of the present specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 utility model. In the present 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0080] 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 principles 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, and the frame cross beam is connected between the two frame longitudinal beams; Among them, each of the frame longitudinal beams is configured to extend obliquely from rear to front relative to the longitudinal direction of the vehicle, the front areas of the two frame longitudinal beams are constructed to be inclined from rear to front in a direction away from each other, and a front installation space is formed between the front areas of the two frame longitudinal beams. The width of the front installation space in the transverse direction of the vehicle is configured to gradually increase from rear to front along the longitudinal direction of the vehicle, and the ratio of the front width of the front installation space to the rear width of the front installation space is 1.4 to 1.

8.

2. The front subframe according to claim 1, characterized in that: A rear space is also formed between the rear regions of the two frame longitudinal beams; There are multiple frame cross beams, a portion of the multiple frame cross beams are located in the front installation space, another portion of the multiple frame cross beams are located in the rear space, and an extension length of the frame cross beam located in the front installation space is greater than an extension length of the frame cross beam located in the rear space.

3. The front subframe according to claim 2, characterized in that: There are three frame cross beams, namely a front cross beam, 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 in sequence along the longitudinal direction of the vehicle. The front cross beam is located in the front installation space, and the middle cross beam and the rear cross beam are located in the rear space.

4. The front subframe according to claim 3, characterized in that: The length of the front cross beam is greater than the length of the middle cross beam, and the length of the middle cross beam is less than or equal to the length of the rear cross beam.

5. The front subframe according to any one of claims 1 to 4, characterized in that: The frame rail is provided with a first vehicle body mounting point, and the frame rail is adapted to be connected to the vehicle body at the first vehicle body mounting point; There are multiple first body mounting points, and the multiple first body mounting points are spaced apart and distributed on the frame longitudinal beam along the longitudinal direction of the vehicle.

6. The front subframe according to claim 5, characterized in that: It also includes a rear connecting plate, wherein the rear connecting plates are two and are connected to the rear ends of the two frame longitudinal beams in a one-to-one correspondence, and the rear connecting plates are suitable for being connected to the vehicle body at the same first vehicle body mounting point as the corresponding frame longitudinal beams.

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