Platformization front auxiliary frame and new energy automobile
By dividing the front auxiliary frame into the general module and the replacement of the beam module, the laser welding and the integrated square pipe tailoring structure is used to achieve the platformization design and production of the front auxiliary frame, solving the high design cost in the existing technology The problem of adaptation has reduced production costs and improved production efficiency.
Patent Information
- Application Number
- CN202421038236.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-14
Smart Images
Figure CN222408377U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of automobile parts, and in particular to a platform-based front subframe and a new energy vehicle. Background Art
[0002] The front subframe is an important part of the automobile suspension system. It is mainly used to connect many components such as the automobile body, powertrain and suspension, and can reduce the vibration transmitted from the road surface to the car body, thereby improving the comfort and stability of the vehicle during driving.
[0003] At present, in the design and production of automobiles, one type of front subframe can often only meet the performance requirements of one model. If it is to be applied to different models, a new front subframe needs to be redesigned, which greatly increases the development cost and development cycle of the front subframe. Therefore, in order to reduce R&D costs and improve technology utilization, it is urgent to realize platformization of the front subframe. However, the existing platform development methods often use one front subframe to adapt to multiple configuration models, which easily leads to design redundancy of the front subframe, which not only increases material costs, but also is not conducive to the lightweight design concept of the vehicle. Utility Model Content
[0004] Based on this, it is necessary to provide a platform-based front subframe and a new energy vehicle to solve the problem of high design cost of the existing front subframe.
[0005] The present application provides a platform-based front subframe, which includes a universal left longitudinal beam, a universal right longitudinal beam, a replaceable front cross beam, and a replaceable rear cross beam. The universal left longitudinal beam and the universal right longitudinal beam are arranged opposite to each other, and the universal left longitudinal beam and the universal right longitudinal beam are both provided with a front mounting position and a rear mounting position. The replaceable front cross beam is mounted on the universal left longitudinal beam and the universal right longitudinal beam through the front mounting position, and the replaceable rear cross beam is mounted on the universal left longitudinal beam and the universal right longitudinal beam through the rear mounting position. The replaceable front crossbeam is configured as a two-wheel drive front crossbeam or a four-wheel drive front crossbeam, and the replaceable rear crossbeam is configured as a pure electric rear crossbeam or an extended-range rear crossbeam; wherein, the replaceable front crossbeam is an integrated square tube cutting structure; and when the two-wheel drive front crossbeam is connected to the front mounting position, the two ends of the two-wheel drive front crossbeam are respectively laser welded to the universal left longitudinal beam and the universal right longitudinal beam; when the four-wheel drive front crossbeam is connected to the front mounting position, the two ends of the four-wheel drive front crossbeam are respectively laser welded to the universal left longitudinal beam and the universal right longitudinal beam.
[0006] In one embodiment, the widths of the four-wheel drive front cross beam and the two-wheel drive front cross beam are equal, and the height of the four-wheel drive front cross beam is greater than the height of the two-wheel drive front cross beam.
[0007] In one of the embodiments, the height of the four-wheel drive front cross beam is greater than or equal to 90 mm.
[0008] In one of the embodiments, the platform front subframe further includes a compressor bracket, and the compressor bracket is connected to the pure electric rear cross beam.
[0009] In one embodiment, the platform front subframe further includes an engine suspension bracket, and the engine suspension bracket is connected to the extended-range rear cross beam.
[0010] In one of the embodiments, the extended-range rear cross beam is provided with a mounting groove, and the engine suspension bracket includes a main body and a support plate, one end of the main body is installed in the mounting groove, and the other end is connected to the support plate and is arranged at an angle to the support plate; wherein, the support plate is arranged around and connected to a portion of the circumference of the universal left longitudinal beam or the universal right longitudinal beam at one end away from the main body.
[0011] In one embodiment, the platform front subframe also includes a diagonal support plate, which is arranged at the connection between the extended-range rear cross beam and the universal left longitudinal beam and is respectively connected to the side walls of the extended-range rear cross beam and the universal left longitudinal beam; and / or, the diagonal support plate is arranged at the connection between the extended-range rear cross beam and the universal right longitudinal beam and is respectively connected to the side walls of the extended-range rear cross beam and the universal right longitudinal beam.
[0012] In one of the embodiments, bending ribs are provided on the universal left longitudinal beam and the universal right longitudinal beam.
[0013] In one embodiment, the universal left longitudinal beam includes a first left longitudinal beam section and a second left longitudinal beam section, the first left longitudinal beam section is connected to one end of the second left longitudinal beam section and is set at an angle to the second left longitudinal beam section; the universal right longitudinal beam includes a first right longitudinal beam section and a second right longitudinal beam section, the first right longitudinal beam section is connected to one end of the second right longitudinal beam section and is set at an angle to the second right longitudinal beam section; wherein the connection between the first left longitudinal beam section and the second left longitudinal beam section is an arc-shaped transition, and the connection between the first right longitudinal beam section and the second right longitudinal beam section is an arc-shaped transition.
[0014] The present application also provides a new energy vehicle, which includes the platform-based front subframe described in any one of the above embodiments.
[0015] Compared with the prior art, the platform-based front subframe and new energy vehicle provided by the present application are divided into four modules: a universal left longitudinal beam, a universal right longitudinal beam, a replaceable front crossbeam, and a replaceable rear crossbeam, wherein the universal left longitudinal beam and the universal right longitudinal beam are shared modules, so as to reduce differences and reduce development costs. Furthermore, according to the installation requirements of different models, the replaceable front crossbeam can be set as a two-wheel drive front crossbeam or a four-wheel drive front crossbeam, and the replaceable rear crossbeam can be set as a pure electric rear crossbeam or an extended-range rear crossbeam. By combining and connecting different crossbeam structures with the universal left longitudinal beam and the universal right longitudinal beam, the differences of the front subframe are further reduced, thereby realizing platform production of the front subframe and reducing development costs. In addition, by setting the two-wheel drive front cross beam and the four-wheel drive front cross beam as an integrated square tube cutting structure, the production efficiency of the cross beam is effectively improved compared to the traditional cross beam split stamping and welding structure. At the same time, the two-wheel drive front cross beam and the four-wheel drive front cross beam are fixed by laser welding, which can greatly improve the convenience of welding and reduce the number of tooling in the cross beam forming and assembly process, thereby greatly reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0017] Figure 1 A top view of a platform-based front subframe of a two-wheel drive vehicle of an embodiment provided in the present application;
[0018] Figure 2 A cross-sectional view of a two-wheel drive front cross beam of a two-wheel drive vehicle of an embodiment provided in the present application;
[0019] Figure 3 A top view of a platform-based front subframe of a four-wheel drive vehicle of an embodiment provided in the present application;
[0020] Figure 4 A cross-sectional view of a four-wheel drive front cross beam of a four-wheel drive vehicle of an embodiment provided in the present application;
[0021] Figure 5 A top view of a platform-based front subframe of a range-extended vehicle model according to an embodiment of the present application;
[0022] Figure 6 A schematic structural diagram of an engine suspension bracket according to an embodiment of the present application.
[0023] The symbols in the figure mean the following:
[0024] 100. Platform front subframe; 10. Universal left longitudinal beam; 11. Front mounting position; 12. Rear mounting position; 13. Bending ribs; 14. First left longitudinal beam section; 15. Second left longitudinal beam section; 20. Universal right longitudinal beam; 21. First right longitudinal beam section; 22. Second right longitudinal beam section; 30. Replaceable front cross beam; 31. Two-wheel drive front cross beam; 32. Four-wheel drive front cross beam; 40. Replaceable rear cross beam; 41. Pure electric rear cross beam; 42. Extended range rear cross beam; 421. Mounting slot; 50. Compressor bracket; 60. Engine suspension bracket; 61. Main body; 62. Support plate; 70. Diagonal support plate. DETAILED DESCRIPTION
[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0026] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.
[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0028] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly through an intermediate medium. Moreover, a first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0029] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.
[0030] The front subframe is an important part of the automobile suspension system. It is mainly used to connect many components such as the automobile body, powertrain and suspension, and can reduce the vibration transmitted from the road surface to the car body, thereby improving the comfort and stability of the vehicle during driving.
[0031] At present, in the design and production of automobiles, one type of front subframe can often only meet the performance requirements of one model. If it is to be applied to different models, a new front subframe needs to be redesigned, which greatly increases the development cost and development cycle of the front subframe. Therefore, in order to reduce R&D costs and improve technology utilization, it is urgent to realize platformization of the front subframe. However, the existing platform development methods often use one front subframe to adapt to multiple configuration models, which easily leads to design redundancy of the front subframe, which not only increases material costs, but also is not conducive to the lightweight design concept of the vehicle.
[0032] See also Figure 1-Figure 6 In order to solve the problem of high design cost of the existing front subframe, the present application provides a platform-based front subframe 100, which includes a universal left longitudinal beam 10, a universal right longitudinal beam 20, a replaceable front crossbeam 30 and a replaceable rear crossbeam 40. The universal left longitudinal beam 10 and the universal right longitudinal beam 20 are arranged opposite to each other, and the universal left longitudinal beam 10 and the universal right longitudinal beam 20 are both provided with a front mounting position 11 and a rear mounting position 12. The replaceable front crossbeam 30 is installed on the universal left longitudinal beam 10 and the universal right longitudinal beam 20 through the front mounting position 11, and the replaceable rear crossbeam 40 is installed on the universal left longitudinal beam 10 and the universal right longitudinal beam 20 through the rear mounting position 12. Among them, the replaceable front crossbeam 30 is configured as a two-wheel drive front crossbeam 31 or a four-wheel drive front crossbeam 32, and the replaceable rear crossbeam 40 is configured as a pure electric rear crossbeam 41 or an extended-range rear crossbeam 42. In addition, the replaceable front crossbeam 30 is an integrated square tube cutting structure. When the two-wheel drive front cross beam 31 is connected to the front installation position 11, the two ends of the two-wheel drive front cross beam 31 are laser welded to the universal left longitudinal beam 10 and the universal right longitudinal beam 20. When the four-wheel drive front cross beam 32 is connected to the front installation position 11, the two ends of the four-wheel drive front cross beam 32 are laser welded to the universal left longitudinal beam 10 and the universal right longitudinal beam 20.
[0033] It should be noted that existing new energy vehicles usually include three types: two-wheel drive models, four-wheel drive models and extended-range models. Among them, two-wheel drive models are often rear-wheel drive, that is, the motor as the power core is located at the rear of the vehicle body, and no motor is installed at the front subframe. Four-wheel drive models are equipped with motors on the front and rear of the body, and installation points for connecting to the newly added motors need to be set on the front subframe. Since the extended-range model has an additional engine, corresponding installation points need to be set on the front subframe to meet the installation of the engine. The installation requirements of different models of parts are different, resulting in different load-bearing performance and lightweight requirements of the front subframe.
[0034] It should also be noted that along the length direction of the vehicle body, the direction closer to the front of the vehicle is the front of the vehicle body, and the direction closer to the rear of the vehicle is the rear of the vehicle body.
[0035] This application divides the platform subframe into four modules, namely, a universal left longitudinal beam 10, a universal right longitudinal beam 20, a replaceable front crossbeam 30 and a replaceable rear crossbeam 40, wherein the universal left longitudinal beam 10 and the universal right longitudinal beam 20 are shared modules, so as to reduce differences and reduce development costs. Furthermore, according to the installation requirements of different models, the replaceable front crossbeam 30 can be set as a two-wheel drive front crossbeam 31 or a four-wheel drive front crossbeam 32, and the replaceable rear crossbeam 40 can be set as a pure electric rear crossbeam 41 or an extended-range rear crossbeam 42. By combining and connecting different crossbeam structures with the universal left longitudinal beam 10 and the universal right longitudinal beam 20, the differences of the front subframe are further reduced, thereby realizing platform production of the front subframe and reducing development costs. Furthermore, by configuring the two-wheel drive front cross beam 31 and the four-wheel drive front cross beam 32 as an integrated square tube cutting structure, the production efficiency of the cross beams is effectively improved compared to the traditional structure in which the cross beams are stamped and welded separately. At the same time, the two-wheel drive front cross beam 31 and the four-wheel drive front cross beam 32 are fixed by laser welding, which can greatly improve the convenience of welding and reduce the number of tooling in the process of cross beam forming and assembly, thereby greatly reducing the production cost.
[0036] Specifically, in a two-wheel drive vehicle, the front subframe may adopt a structure in which a two-wheel drive front crossbeam 31 and a pure electric rear crossbeam 41 cooperate. In a four-wheel drive vehicle, the front subframe may adopt a structure in which a four-wheel drive front crossbeam 32 and a pure electric rear crossbeam 41 cooperate. In an extended-range vehicle, the front subframe may adopt a structure in which a two-wheel drive front crossbeam 31 and an extended-range rear crossbeam 42 cooperate.
[0037] Furthermore, the integrated square tube cutting structure is directly cut from a square tube, wherein the square tube can be formed by roll forming without designing a die stamping, thereby reducing the die design cost. By adopting the structure of the present application, the production efficiency of the front cross beam 30 can be increased by 50%, and the cost of tooling can be reduced by 20%, thereby greatly reducing the cost.
[0038] In one embodiment, if Figure 2 and Figure 4As shown, the width of the four-wheel drive front cross beam 32 and the two-wheel drive front cross beam 31 are equal, and the height of the four-wheel drive front cross beam 32 is greater than the height of the two-wheel drive front cross beam 31. Since the two-wheel drive front cross beam 31 does not need to be used as the installation point of the motor or engine, the size of the two-wheel drive front cross beam 31 can be appropriately reduced, the weight of the platform front subframe 100 can be reduced, and lightweight can be achieved. The four-wheel drive front cross beam 32 needs to be connected with the motor. By increasing the size of the four-wheel drive front cross beam 32, its structural rigidity can be improved to better support the motor and meet the layout requirements of the motor installation point. In addition, by setting the width of the four-wheel drive front cross beam 32 and the two-wheel drive front cross beam 31 to be the same, the connection stability of the four-wheel drive front cross beam 32 and the two-wheel drive front cross beam 31 can be guaranteed, the probability of interference with other parts due to width changes is reduced, and the overall assembly difficulty is reduced.
[0039] Furthermore, in one embodiment, the height of the four-wheel drive front cross beam 32 is greater than or equal to 90 mm, so as to further meet the dynamic stiffness requirements of the motor installation point and improve the installation stability of the motor.
[0040] For example, the height of the four-wheel drive front cross beam 32 may be 90 mm, 91 mm, 92 mm, 93 mm or 94 mm, etc., which are not listed here one by one.
[0041] In one embodiment, if Figure 1 and Figure 3 As shown, the platform front subframe 100 further includes a compressor bracket 50, and the compressor bracket 50 is connected to the pure electric rear cross beam 41. In this way, the arrangement of the compressor in the two-wheel drive vehicle and the four-wheel drive vehicle is facilitated, and the difficulty of arranging the compressor is reduced.
[0042] In one embodiment, if Figure 5 As shown, the platform front subframe 100 further includes an engine suspension bracket 60, and the engine suspension bracket 60 is connected to the extended-range rear cross beam 42. In this way, the extended-range rear cross beam 42 can achieve reliable support for the engine and improve the installation stability of the engine.
[0043] Among them, the extended-range rear beam 42 and the pure electric rear beam 41 can be formed by welding two upper and lower stamping plates, so that the characteristic structure for connecting the compressor bracket 50 or the engine suspension bracket 60 can be formed at the same time during stamping, thereby reducing the difficulty of processing and assembling parts.
[0044] Further, in one embodiment, if Figure 5 and Figure 6As shown, the extended-range rear cross beam 42 is provided with a mounting groove 421, and the engine suspension bracket 60 includes a main body 61 and a support plate 62, one end of the main body 61 is installed in the mounting groove 421, and the other end is connected to the support plate 62 and is arranged at an angle with the support plate 62. Among them, the support plate 62 is arranged around and connected to a part of the circumference of the universal left longitudinal beam 10 or the universal right longitudinal beam 20 at one end away from the main body 61.
[0045] In this embodiment, the support plate 62 of the engine suspension bracket 60 is connected to the universal left longitudinal beam 10. In this way, the engine suspension bracket 60 is fixed to the extended-range rear cross beam 42 through the mounting groove 421, and is also fixed to the universal left longitudinal beam 10, thereby greatly improving the connection strength of the engine suspension bracket 60 and further improving the installation stability of the engine. Of course, in other embodiments, the support plate 62 can also be connected to the universal right longitudinal beam 20, which can be reasonably set according to actual connection needs.
[0046] In one embodiment, if Figure 5 As shown, the platformized front subframe 100 also includes a diagonal support plate 70, and the diagonal support plate 70 is arranged at the connection between the extended-range rear cross beam 42 and the universal left longitudinal beam 10 and is respectively connected to the side walls of the extended-range rear cross beam 42 and the side walls of the universal left longitudinal beam 10, and the diagonal support plate 70 is also arranged at the connection between the extended-range rear cross beam 42 and the universal right longitudinal beam 20 and is respectively connected to the side walls of the extended-range rear cross beam 42 and the side walls of the universal right longitudinal beam 20.
[0047] Due to the installation of the engine in the extended-range vehicle, its weight is greatly increased. In order to avoid the weight increase causing significant damage to the structural strength, this embodiment can achieve the improvement of overall stiffness and durability by installing a diagonal brace plate 70. Specifically, the diagonal brace plate 70 can increase the stiffness by 30% and increase the durability by three times. In addition, by installing a diagonal brace plate 70 at both ends of the extended-range rear beam 42, the force stability can be further improved.
[0048] Of course, in other embodiments, the diagonal support plate 70 may be provided only at the connection between the extended-range rear cross beam 42 and the universal left longitudinal beam 10, or only at the connection between the extended-range rear cross beam 42 and the universal right longitudinal beam 20. In this way, a certain improvement in stiffness and durability can be achieved.
[0049] In one embodiment, if Figure 1 , Figure 3 and Figure 5 As shown, the universal left longitudinal beam 10 and the universal right longitudinal beam 20 are both provided with bending ribs 13. The bending ribs 13 are collision bending points on the universal left longitudinal beam 10 and the universal right longitudinal beam 20. When the platform front subframe 100 collides, the bending ribs 13 can collapse and absorb energy, thereby greatly improving the collision safety of the platform front subframe 100.
[0050] Furthermore, in one embodiment, the universal left longitudinal beam 10 includes a first left longitudinal beam section 14 and a second left longitudinal beam section 15, wherein the first left longitudinal beam section 14 is connected to one end of the second left longitudinal beam section 15 and is arranged at an angle to the second left longitudinal beam section 15. The universal right longitudinal beam 20 includes a first right longitudinal beam section 21 and a second right longitudinal beam section 22, wherein the first right longitudinal beam section 21 is connected to one end of the second right longitudinal beam section 22 and is arranged at an angle to the second right longitudinal beam section 22. The connection between the first left longitudinal beam section 14 and the second left longitudinal beam section 15 is an arc-shaped transition, and the connection between the first right longitudinal beam section 21 and the second right longitudinal beam section 22 is an arc-shaped transition.
[0051] The arc-shaped transition area between the first left longitudinal beam section 14 and the second left longitudinal beam section 15 and the arc-shaped transition area between the first right longitudinal beam section 21 and the second right longitudinal beam section 22 are another collision bending point of the platform front subframe 100. The setting of the bending point can further optimize the collision performance of the platform front subframe 100 and improve the collision safety of the entire vehicle.
[0052] The present application also provides a new energy vehicle, which includes the platform-based front subframe 100 described in any one of the above embodiments.
[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.
Claims
1. A platform-type front subframe, comprising a universal left longitudinal beam (10), a universal right longitudinal beam (20), a replaceable front cross beam (30) and a replaceable rear cross beam (40), wherein the universal left longitudinal beam (10) and the universal right longitudinal beam (20) are arranged opposite to each other, and the universal left longitudinal beam (10) and the universal right longitudinal beam (20) are both provided with a front mounting position (11) and a rear mounting position (12), the replaceable front cross beam (30) is mounted on the universal left longitudinal beam (10) and the universal right longitudinal beam (20) through the front mounting position (11), and the replaceable rear cross beam (40) is mounted on the universal left longitudinal beam (10) and the universal right longitudinal beam (20) through the rear mounting position (12); It is characterized in that The replaceable front crossbeam (30) is configured as a two-wheel drive front crossbeam (31) or a four-wheel drive front crossbeam (32), and the replaceable rear crossbeam (40) is configured as a pure electric rear crossbeam (41) or an extended-range rear crossbeam (42); The replaceable front cross beam (30) is an integrated square tube cutting structure; and when the two-wheel drive front cross beam (31) is connected to the front installation position (11), the two ends of the two-wheel drive front cross beam (31) are laser welded to the universal left longitudinal beam (10) and the universal right longitudinal beam (20) respectively; when the four-wheel drive front cross beam (32) is connected to the front installation position (11), the two ends of the four-wheel drive front cross beam (32) are laser welded to the universal left longitudinal beam (10) and the universal right longitudinal beam (20) respectively.
2. The platform front subframe according to claim 1, characterized in that: The widths of the four-wheel drive front cross beam (32) and the two-wheel drive front cross beam (31) are equal, and the height of the four-wheel drive front cross beam (32) is greater than the height of the two-wheel drive front cross beam (31).
3. The platform front subframe according to claim 2, characterized in that: The height of the four-wheel drive front cross beam (32) is greater than or equal to 90 mm.
4. The platform front subframe according to claim 1, characterized in that: The platform front subframe further comprises a compressor bracket (50), and the compressor bracket (50) is connected to the pure electric rear cross beam (41).
5. The platform front subframe according to claim 1, characterized in that: The platform front subframe also includes an engine suspension bracket (60), and the engine suspension bracket (60) is connected to the extended-range rear cross beam (42).
6. The platform front subframe according to claim 5, characterized in that: The extended-range rear cross beam (42) is provided with a mounting groove (421); the engine suspension bracket (60) comprises a main body (61) and a support plate (62); one end of the main body (61) is mounted in the mounting groove (421), and the other end is connected to the support plate (62) and is arranged at an angle to the support plate (62); Wherein, one end of the support plate (62) away from the main body (61) is arranged around and connected to a part of the circumference of the universal left longitudinal beam (10) or the universal right longitudinal beam (20).
7. The platform front subframe according to claim 1, characterized in that: The platform front subframe further comprises a diagonal brace plate (70), which is arranged at the connection between the extended-range rear cross beam (42) and the universal left longitudinal beam (10) and is respectively connected to the side wall of the extended-range rear cross beam (42) and the side wall of the universal left longitudinal beam (10); And / or, the diagonal support plate (70) is arranged at the connection between the extended-range rear cross beam (42) and the universal right longitudinal beam (20) and is respectively connected to the side wall of the extended-range rear cross beam (42) and the side wall of the universal right longitudinal beam (20).
8. The platform front subframe according to claim 1, characterized in that: The universal left longitudinal beam (10) and the universal right longitudinal beam (20) are both provided with bending ribs (13).
9. The platform front subframe according to claim 8, characterized in that: The universal left longitudinal beam (10) comprises a first left longitudinal beam section (14) and a second left longitudinal beam section (15); the first left longitudinal beam section (14) is connected to one end of the second left longitudinal beam section (15) and is arranged at an angle to the second left longitudinal beam section (15); The universal right longitudinal beam (20) comprises a first right longitudinal beam section (21) and a second right longitudinal beam section (22); the first right longitudinal beam section (21) is connected to one end of the second right longitudinal beam section (22) and is arranged at an angle to the second right longitudinal beam section (22); The connection between the first left longitudinal beam section (14) and the second left longitudinal beam section (15) is in an arc-shaped transition, and the connection between the first right longitudinal beam section (21) and the second right longitudinal beam section (22) is in an arc-shaped transition.
10. A new energy vehicle, characterized in that: It comprises a platformized front subframe as described in any one of claims 1 to 9.