Front suspension and vehicle with same
By placing the stabilizing rod on the front side of the front wheel center in the front suspension of the pure electric economical automobile platform, the problem of limited space for battery module layout is solved, and a larger layout space and higher layout feasibility is achieved.
Patent Information
- Application Number
- CN202411542971.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-03-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The front suspension structure of the existing pure electric economical automobile platform is not designed accordingly for the battery assembly layout of electric vehicles, resulting in limited space for battery assembly layout.
A front suspension is designed to provide more space for battery assembly arrangement by arranging the stabilizing rods on the front side of the front wheel center of the vehicle.
This design allows the stabilizing rod not to occupy the rear space on the front wheel center, and the steering machine is closer to the front wheel center, reducing the steering machine to occupy the rear space on the front wheel center, thereby providing a larger layout space for the battery assembly, reducing the probability of the battery assembly interfering with other components, and improving the feasibility of vehicle arrangement.
Smart Images

Figure CN119590165A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of vehicles, and in particular to a front suspension and a vehicle having the same. Background Art
[0002] The automobile suspension is an important part of the chassis and a key system that determines the chassis performance. In the relevant technology, the front suspension of some pure electric economy car platforms still uses the front suspension structure of traditional fuel vehicles, and there is no corresponding design for the layout of the battery components of electric vehicles, which squeezes the layout space of the battery components. Summary of the invention
[0003] The present invention aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, the present invention proposes a front suspension, which provides more arrangement space for battery components by arranging a stabilizer bar in front of the front wheel center of the vehicle.
[0004] The present invention also provides a vehicle with the front suspension.
[0005] According to the front suspension of the embodiment of the present invention, it includes: a front subframe, which is suitable for being connected to the body of the vehicle; two front swing arms, one of which is connected to the left side of the front subframe, and the other is connected to the right side of the front subframe; two steering knuckles, which correspond to the two front swing arms one by one, and each steering knuckle is connected to a corresponding front swing arm; a steering machine, one end of which is connected to one steering knuckle, and the other end of which is connected to the other steering knuckle; two front sliding column assemblies, which correspond to the two front sliding column assemblies one by one, and each front sliding column assembly is connected to a corresponding steering knuckle; a stabilizer bar, which is connected to the front subframe; two connecting rods, which correspond to the two front sliding column assemblies one by one, and each front sliding column assembly is connected to the stabilizer bar through a corresponding connecting rod; wherein the stabilizer bar is located at the front side of the front wheel center of the vehicle, and the steering machine is located at the rear side of the front wheel center.
[0006] According to the front suspension of an embodiment of the present invention, by locating the stabilizer bar in front of the front wheel center of the vehicle, the stabilizer bar does not occupy the space behind the front wheel center of the vehicle, the steering gear can be closer to the front wheel center of the vehicle, and the space occupied by the steering gear behind the front wheel center of the vehicle can be reduced, so as to provide more space for the arrangement of the battery assembly of the vehicle and reduce the probability of interference between the battery assembly of the vehicle and other components, which is conducive to improving the feasibility of vehicle layout.
[0007] According to some embodiments of the present invention, the front swing arm includes: a swing arm body, which is connected to the front subframe; a swing arm ball head, which is connected to the steering knuckle; and a connecting piece, which is connected between the swing arm body and the swing arm ball head, and at least one of the swing arm body and the swing arm ball head is detachably connected to the connecting piece.
[0008] According to some embodiments of the present invention, the front subframe includes: a front cross beam, a rear cross beam, a left longitudinal beam and a right longitudinal beam, the front cross beam and the rear cross beam are arranged at intervals in the front-to-rear direction, the left longitudinal beam and the right longitudinal beam are arranged at intervals in the left-to-right direction, the left longitudinal beam is connected between the front cross beam and the rear cross beam, and the right longitudinal beam is connected between the front cross beam and the rear cross beam.
[0009] According to some embodiments of the present invention, the front cross beam and the rear cross beam both have body connection holes suitable for connecting to the body, and the number of the body connection holes on the rear cross beam is greater than the number of the body connection holes on the front cross beam.
[0010] According to some embodiments of the present invention, one of the vehicle body connection holes is provided at each of the left and right ends of the front cross beam, and two of the vehicle body connection holes are provided at each of the left and right ends of the rear cross beam.
[0011] According to some embodiments of the present invention, both the left longitudinal beam and the right longitudinal beam have a crush energy absorption structure.
[0012] According to some embodiments of the present invention, the left longitudinal beam and the right longitudinal beam are both arc-shaped beams that are bent downward, and the crush energy absorption structure is located on the inner arc surface corresponding to the lowest point of the arc-shaped beam.
[0013] According to some embodiments of the present invention, the front suspension further comprises: a suspension assembly, the suspension assembly comprises: a suspension bracket and a suspension bushing, the suspension bushing is press-fitted into the suspension bracket, and the suspension bracket is integrally formed with the front subframe.
[0014] According to some embodiments of the present invention, there are multiple suspension assemblies, including: a left front suspension assembly, wherein the suspension bracket of the left front suspension assembly is integrally formed with the left longitudinal beam; a right front suspension assembly, wherein the suspension bracket of the right front suspension assembly is integrally formed with the right longitudinal beam; and a rear suspension assembly, wherein the suspension bracket of the rear suspension assembly is passed through the rear cross beam and is integrally formed with the rear cross beam.
[0015] A vehicle according to an embodiment of the present invention includes the front suspension of the above embodiment.
[0016] According to the vehicle of the embodiment of the present invention, by locating the stabilizer bar in front of the front wheel center of the vehicle, the stabilizer bar does not occupy the space behind the front wheel center of the vehicle, the steering gear can be closer to the front wheel center of the vehicle, and the space occupied by the steering gear behind the front wheel center of the vehicle can be reduced, so as to provide more space for the arrangement of the battery assembly of the vehicle and reduce the probability of interference between the battery assembly of the vehicle and other components, which is conducive to improving the feasibility of vehicle layout.
[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a perspective view of a front suspension according to an embodiment of the present invention;
[0019] Figure 2 is a top view of a front suspension according to an embodiment of the present invention;
[0020] Figure 3 is a rear view of a front suspension according to an embodiment of the present invention;
[0021] Figure 4 is a side view of a front suspension according to an embodiment of the present invention;
[0022] Figure 5 is a top view of a front swing arm according to an embodiment of the present invention;
[0023] Figure 6 is a perspective view of a front subframe and a suspension assembly according to an embodiment of the present invention.
[0024] Reference numerals:
[0025] Front subframe 1; front crossbeam 11; rear crossbeam 12; left longitudinal beam 13; right longitudinal beam 14; vehicle body connecting hole 15; connecting bolt 16;
[0026] Front swing arm 2; swing arm body 21; swing arm ball head 22; connecting piece 23;
[0027] Steering knuckle 3; steering gear 4; front sliding column assembly 5; stabilizer bar 6; connecting rod 7; front wheel center 8;
[0028] Suspension assembly 9; left front suspension assembly 9a; right front suspension assembly 9b; rear suspension assembly 9c; suspension bushing 91; suspension bracket 92;
[0029] Crumpling energy absorbing structure 10;
[0030] Front suspension 100. DETAILED DESCRIPTION
[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0032] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "lower", "front", "rear", "left", "right", "inside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0033] 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 one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0035] Combine the following Figure 1-Figure 6 A front suspension 100 and a vehicle having the same according to an embodiment of the present invention will be described in detail.
[0036] Reference Figure 1-Figure 6As shown, the front suspension 100 according to the embodiment of the present invention comprises: a front subframe 1, two front swing arms 2, two steering knuckles 3, a steering gear 4, two front sliding column assemblies 5, a stabilizer bar 6 and two connecting rods 7. The front subframe 1 is suitable for being connected to the vehicle body, one front swing arm 2 is connected to the left side of the front subframe 1, and the other front swing arm 2 is connected to the right side of the front subframe 1. The two steering knuckles 3 correspond to the two front swing arms 2 one by one, and each steering knuckle 3 is connected to a corresponding front swing arm 2. The first end of the steering gear 4 is connected to a steering knuckle 3, the other end of the steering gear 4 is connected to another steering knuckle 3, the two front sliding column assemblies 5 correspond to the two steering knuckles 3 one by one, each front sliding column assembly 5 is connected to a corresponding steering knuckle 3, the stabilizer bar 6 is connected to the front subframe 1, the two connecting rods 7 correspond to the two front sliding column assemblies 5 one by one, each front sliding column assembly 5 is connected to the stabilizer bar 6 through a corresponding connecting rod 7, wherein the stabilizer bar 6 is located in front of the front wheel center 8 of the vehicle, and the steering gear 4 is located on the rear side of the front wheel center 8.
[0037] Specifically, the front subframe 1 can be connected to the body of the vehicle, and the front subframe 1 can be fixed to the body of the vehicle by welding or bolting. The two front swing arms 2 of the front suspension 100 are respectively arranged on the left and right sides of the front subframe 1, and the two front swing arms 2 are mirror-symmetrical in the left and right directions of the front subframe 1. The two front swing arms 2 are rotatably connected to the front subframe 1, and the ends of the two front swing arms 2 away from the front subframe 1 are respectively rotatably connected to the two steering knuckles 3, that is, the end of the front swing arm 2 arranged on the left side of the vehicle away from the front subframe 1 is rotatably connected to the steering knuckle 3 arranged on the left side of the vehicle, and the end of the front swing arm 2 arranged on the right side of the vehicle away from the front subframe 1 is rotatably connected to the steering knuckle 3 arranged on the right side of the vehicle.
[0038] Each of the two steering knuckles 3 may have a plurality of connection ends, and the two steering knuckles 3 are mirror-symmetrical in the left-right direction of the front sub-frame 1. The two steering knuckles 3 arranged on the left and right sides of the vehicle may be respectively connected to the two front swing arms 2, the two front slide column assemblies 5 and the steering gear 4. Specifically, the steering knuckle 3 arranged on the left side of the vehicle is respectively connected to the front swing arm 2 arranged on the left side of the vehicle, the front slide column assembly 5 arranged on the left side of the vehicle and the left end of the steering gear 4, and the steering knuckle 3 arranged on the right side of the vehicle is respectively connected to the front swing arm 2 arranged on the right side of the vehicle, the front slide column assembly 5 arranged on the right side of the vehicle and the right end of the steering gear 4. The steering knuckle 3 is rotatable relative to the front swing arm 2, and the steering knuckle 3 is fixedly connected to the steering gear 4 and the front slide column assembly 5. The two front slide column assemblies 5 are mirror-symmetrical in the left-right direction of the front sub-frame 1.
[0039] The stabilizer bar 6 can be constructed as a U-shaped bar, and the arrangement direction of the stabilizer bar 6 can match the motor arrangement space to reduce the probability of interference between the stabilizer bar 6 and the motor. The stabilizer bar 6 can be rotatably fixed to the front subframe 1 through a stabilizer bar bushing so that the stabilizer bar 6 can rotate relative to the front subframe 1. The left end of the stabilizer bar 6 is connected to the front sliding column assembly 5 arranged on the left side of the vehicle through a connecting rod 7 arranged on the left side of the vehicle, and the right end of the stabilizer bar 6 is connected to the front sliding column assembly 5 arranged on the right side of the vehicle through a connecting rod 7 arranged on the right side of the vehicle.
[0040] The front wheel center 8 of the vehicle is located at the axis center of the steering knuckle 3, and the stabilizer bar 6 is located in front of the front wheel center 8 of the vehicle, so as to make full use of the space in front of the front wheel center 8 of the vehicle to arrange the stabilizer bar 6, so that the steering gear 4 can be arranged closer to the front side of the vehicle, reducing the space occupied by the steering gear 4 on the rear side of the front wheel center 8 of the vehicle, so as to provide more layout space for the battery assembly.
[0041] In the above embodiment, by locating the stabilizer bar 6 in front of the front wheel center 8 of the vehicle, the stabilizer bar 6 does not occupy the space behind the front wheel center 8 of the vehicle, the steering gear 4 can be closer to the front wheel center 8 of the vehicle, and the space occupied by the steering gear 4 behind the front wheel center 8 of the vehicle can be reduced, thereby providing more space for the layout of the battery assembly of the vehicle and reducing the probability of interference between the battery assembly of the vehicle and other components, which is conducive to improving the feasibility of vehicle layout.
[0042] In some embodiments of the present invention, Figure 1-Figure 5 As shown, the front swing arm 2 includes: a swing arm body 21, a swing arm ball head 22 and a connecting piece 23. The swing arm body 21 is connected to the front subframe 1, the swing arm ball head 22 is connected to the steering knuckle 3, the connecting piece 23 is connected between the swing arm body 21 and the swing arm ball head 22, and at least one of the swing arm body 21 and the swing arm ball head 22 is detachably connected to the connecting piece 23.
[0043] Among them, one end of the swing arm body 21 close to the front sub-frame 1 is rotatably connected to the front sub-frame 1, and one end of the swing arm body 21 away from the front sub-frame 1 is fixedly connected to the connecting piece 23. The connecting piece 23 is connected between the swing arm body 21 and the swing arm ball head 22. The swing arm ball head 22 can be connected to the steering knuckle 3. The swing arm ball head 22 is a ball joint structure, so that the steering knuckle 3 can be rotatable relative to the connecting piece 23 and the swing arm body 21.
[0044] The swing arm body 21 is detachably connected to the connecting piece 23, the swing arm ball head 22 is welded or integrally formed with the connecting piece 23, or the swing arm ball head 22 is detachably connected to the connecting piece 23, the swing arm body 21 is welded or integrally formed with the connecting piece 23, or the swing arm ball head 22 and the connecting piece 23, the swing arm body 21 and the connecting piece 23 are all detachably connected, so that the swing arm ball head 22 can be disassembled for easy replacement and maintenance, which can reduce the difficulty of maintaining the swing arm ball head 22 to ensure vehicle safety.
[0045] At the same time, the connecting piece 23 is detachable and replaceable. By replacing connecting pieces 23 of different sizes in the left and right directions, the size of the front swing arm 2 in the left and right directions can be adjusted. Connecting pieces 23 of different types can be used according to the wheelbases of the left and right wheels of different vehicles to increase the applicability of the front swing arm 2, thereby achieving the purpose of platform design. It has good platform expandability and can meet performance requirements.
[0046] In some embodiments of the present invention, Figure 1-Figure 4 , Figure 6 As shown, the front subframe 1 includes: a front cross beam 11, a rear cross beam 12, a left longitudinal beam 13 and a right longitudinal beam 14. The front cross beam 11 and the rear cross beam 12 are arranged at intervals in the front-to-rear direction, the left longitudinal beam 13 and the right longitudinal beam 14 are arranged at intervals in the left-to-right direction, the left longitudinal beam 13 is connected between the front cross beam 11 and the rear cross beam 12, and the right longitudinal beam 14 is connected between the front cross beam 11 and the rear cross beam 12.
[0047] Among them, the front cross beam 11, the rear cross beam 12, the left longitudinal beam 13 and the right longitudinal beam 14 can form a front subframe 1 of a rectangular frame structure, which has good stability and load-bearing capacity. The front cross beam 11 is located at the front end of the front subframe 1, the rear cross beam 12 is located at the rear end of the front subframe 1, the left longitudinal beam 13 is located at the left end of the front subframe 1, and the right longitudinal beam 14 is located at the right end of the front subframe 1. The front cross beam 11 and the rear cross beam 12 are arranged at intervals in the front-to-back direction, and the left longitudinal beam 13 and the right longitudinal beam 14 are arranged at intervals in the left-to-right direction. The left longitudinal beam 13 is connected between the front cross beam 11 and the rear cross beam 12, and the right longitudinal beam 14 is connected between the front cross beam 11 and the rear cross beam 12. The front cross beam 11, the rear cross beam 12, the left longitudinal beam 13 and the right longitudinal beam 14 define a space, which can be used to install a driving motor of the vehicle.
[0048] The stabilizer bar 6 is rotatably fixed to the front cross beam 11, the left front swing arm 2 is rotatably fixed to the left longitudinal beam 13 and the rear cross beam 12, and the right front swing arm 2 is rotatably fixed to the right longitudinal beam 14 and the rear cross beam 12. The front cross beam 11, the rear cross beam 12, the left longitudinal beam 13 and the right longitudinal beam 14 can provide installation positions for other components, and the front cross beam 11, the rear cross beam 12, the left longitudinal beam 13 and the right longitudinal beam 14 can support the components in the front subframe 1.
[0049] In some embodiments of the present invention, Figure 2 and Figure 6 As shown, both the front cross beam 11 and the rear cross beam 12 have body connection holes 15 suitable for connecting to the body, and the number of the body connection holes 15 on the rear cross beam 12 is greater than the number of the body connection holes 15 on the front cross beam 11 .
[0050] There may be a plurality of body connection holes 15, and the number of body connection holes 15 may be, but is not limited to, six, eight, ten, etc. The front subframe 1 may have a plurality of connection bolts 16, and the front crossbeam 11 and the rear crossbeam 12 may be fixed to the vehicle body through the threaded connection of the plurality of connection bolts 16 and the plurality of body connection holes 15, so that the front subframe 1 may be fixedly connected to the vehicle body, and further the front suspension 100 may be stably and reliably fixedly connected to the vehicle body. Figure 1 and Figure 4 As shown, a connection point can be formed by connecting bolts 16 and corresponding vehicle body connection holes 15. On the front cross beam 11 and the rear cross beam 12 of the front subframe 1, the more connection points there are, the better the connection stability between the front cross beam 11 and the rear cross beam 12 and the vehicle body.
[0051] Furthermore, the number of the body connection holes 15 on the rear cross beam 12 can be made greater than the number of the body connection holes 15 on the front cross beam 11. When the vehicle is hit, since the front cross beam 11 has relatively fewer connection points than the rear cross beam 12, the front cross beam 11 is more likely to be separated from the vehicle body due to the impact force, and the front cross beam 11 is more likely to deform to absorb and disperse the impact energy, so as to protect the battery assembly located on the rear side of the rear cross beam 12 as much as possible, so as to minimize the damage caused by the impact, and at the same time reduce the probability of the battery assembly being hit and exploded.
[0052] In the above embodiment, by making the number of body connection holes 15 on the rear cross beam 12 greater than the number of body connection holes 15 on the front cross beam 11, the front cross beam can be deformed during a collision to absorb and disperse the impact energy, thereby reducing the displacement of the rear cross beam 12 and further reducing the safety distance between the rear cross beam 12 and the battery assembly, thereby further increasing the layout space of the battery assembly and improving the space utilization of the vehicle.
[0053] In some embodiments of the present invention, Figure 2 As shown, a vehicle body connection hole 15 is respectively provided at the left and right ends of the front cross beam 11 , and two vehicle body connection holes 15 are respectively provided at the left and right ends of the rear cross beam 12 .
[0054] Among them, there are two body connection holes 15 on the front cross beam 11, and there are four body connection holes 15 on the rear cross beam 12, that is to say, there are two connection points on the front cross beam 11, and four connection points on the rear cross beam 12. This arrangement can improve the support of the front subframe 1 and reduce the displacement of the front subframe 1 backward during a collision. In addition, the number of connection points on the rear cross beam 12 is greater than the number of connection points on the front cross beam 11. When the vehicle is hit, since the front cross beam 11 has relatively fewer connection points than the rear cross beam 12, the front cross beam 11 is easier to separate from the body of the vehicle, and the front cross beam 11 is easier to deform to absorb and disperse the impact energy, so as to reduce the displacement of the rear cross beam 12 to the rear side of the vehicle, so as to reduce the probability of the rear cross beam 12 colliding with the battery assembly, so as to protect the battery assembly located on the rear side of the rear cross beam 12 as much as possible, so as to reduce the probability of the battery assembly being hit and exploded, thereby protecting the safety of the occupants.
[0055] In addition, by providing two connection points on the front cross beam 11 and four connection points on the rear cross beam 12, the total number of connection points of the front subframe 1 is small, so that the front subframe 1 can be fixedly assembled to the vehicle body, and the difficulty of the fixing and assembly operation can be reduced. By providing four connection points on the rear cross beam 12, the support stiffness of the rear cross beam 12 can be increased, and the NVH (noise, vibration and acoustic roughness) performance of the vehicle can be improved.
[0056] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 6 As shown, both the left longitudinal beam 13 and the right longitudinal beam 14 have a crush energy absorbing structure 10 .
[0057] Compared with other parts of the left longitudinal beam 13 and the right longitudinal beam 14, the crush energy absorbing structure 10 can absorb and disperse the impact energy through structural thinning and / or shape guidance. For example, the crush energy absorbing structure 10 can be configured as a groove, a hole or a variable cross-section design. When the vehicle is hit, the crush energy absorbing structure 10 will be more likely to deform. The crush energy absorbing structure 10 can effectively absorb and disperse the impact energy, and can reduce the impact of the impact force on the passenger compartment to protect the safety of the user. In addition, the crush energy absorbing structure 10 can prevent the front subframe 1 from moving backward to squeeze the battery and cause danger.
[0058] In some embodiments of the present invention, Figure 1 , Figure 4 and Figure 6 As shown, the left longitudinal beam 13 and the right longitudinal beam 14 are both arc-shaped beams that are bent downward, and the crush energy absorption structure 10 is located on the inner arc surface corresponding to the lowest point of the arc-shaped beam.
[0059] Among them, the left longitudinal beam 13 and the right longitudinal beam 14 are both constructed as downward-bending arc-shaped beams, and the inner arc surface is located on the upper surface of the lowest point of the downward bending of the arc-shaped beam. When the vehicle is hit, the arc-shaped beam will bend downward due to the action of external force. Such a bending direction can protect the structure inside the front cabin and the battery assembly on the rear side of the front subframe 1. The downward-bending arc-shaped beam can guide the impact energy to be dispersed along the arc direction of the downward-bending arc-shaped beam to reduce excessive force on a single point. By locating the crush energy absorbing structure 10 on the inner arc surface corresponding to the lowest point of the arc-shaped beam, the impact force can reach the maximum when it is transmitted to the lowest point, so that the crush energy absorbing structure 10 can be deformed according to a preset deformation method to absorb and disperse the impact energy, so as to reduce the impact of the impact force on the passenger compartment, so as to protect the safety of the user.
[0060] In some embodiments of the present invention, Figure 1-Figure 4 , Figure 6 As shown, the front suspension 100 further includes: a suspension assembly 9 , the suspension assembly 9 includes: a suspension bracket 92 and a suspension bushing 91 , the suspension bushing 91 is press-fitted into the suspension bracket 92 , and the suspension bracket 92 is integrally formed with the front subframe 1 .
[0061] The suspension bracket 92 can be used as the main structure of the suspension assembly 9. The suspension bracket 92 has a certain rigidity and strength to support and fix the suspension bushing 91. The suspension bushing 91 is pressed into the suspension bracket 92. The suspension bushing 91 can isolate and absorb vibration. By setting the suspension assembly 9, the front suspension 100 can be fixedly connected to the vehicle body.
[0062] The suspension bracket 92 is integrally formed with the front sub-frame 1 , so that the suspension bracket 92 can be stably and reliably connected to the front sub-frame 1 , and the number of parts can be reduced, the difficulty of installation is reduced, and the integration of the front suspension 100 is improved.
[0063] In some embodiments of the present invention, Figure 1-Figure 3 , Figure 6 As shown, there are multiple suspension assemblies 9, including: a left front suspension assembly 9a, a right front suspension assembly 9b and a rear suspension assembly 9c. The suspension bracket 92 of the left front suspension assembly 9a is integrally formed with the left longitudinal beam 13, the suspension bracket 92 of the right front suspension assembly 9b is integrally formed with the right longitudinal beam 14, and the suspension bracket 92 of the rear suspension assembly 9c is penetrated by the rear cross beam 12 and is integrally formed with the rear cross beam 12.
[0064] Among them, there are multiple suspension assemblies 9, including a left front suspension assembly 9a, a right front suspension assembly 9b and a rear suspension assembly 9c. The left front suspension assembly 9a is arranged on the left longitudinal beam 13, the right front suspension assembly 9b is arranged on the right longitudinal beam 14, and the rear suspension assembly 9c is penetrated through the rear cross beam 12. Multiple suspension assemblies 9 can provide better support for the vehicle body, and can disperse the weight of the vehicle body to multiple wheels through multiple suspension assemblies 9, which can ensure that the vehicle has better stability when driving, and at the same time can reduce the probability of excessive tilting of the vehicle body due to uneven weight distribution.
[0065] Furthermore, by forming the plurality of suspension assemblies 9 and the front sub-frame 1 as one piece, the structural strength of the plurality of suspension assemblies 9 and the front sub-frame 1 can be enhanced, the connection reliability of the plurality of suspension assemblies 9 and the front sub-frame 1 can be improved, and the probability of fracture at the connection between the plurality of suspension assemblies 9 and the front sub-frame 1 can be reduced, which is beneficial to improving assembly efficiency, reducing assembly difficulty, improving vehicle integration, and reducing costs.
[0066] The vehicle according to the embodiment of the present invention includes the front suspension 100 of the above embodiment.
[0067] By locating the stabilizer bar 6 in front of the front wheel center 8 of the vehicle, the stabilizer bar 6 does not occupy the space behind the front wheel center 8 of the vehicle, and the steering gear 4 can be closer to the front wheel center 8 of the vehicle, which can reduce the space occupied by the steering gear 4 behind the front wheel center 8 of the vehicle, and can increase the space behind the front wheel center 8 of the vehicle to provide more space for the arrangement of the battery assembly of the vehicle, and can reduce the probability of interference between the battery assembly of the vehicle and other components, which is conducive to improving the feasibility of vehicle arrangement. In addition, the front suspension 100 of the present invention has a compact structure and good platform expandability.
[0068] It should be noted that the shape and arrangement position of the stabilizer bar 6 can be adjusted according to the arrangement position of the motor of the vehicle, so that the motor of the vehicle has sufficient arrangement space and the probability of interference between the motor and other components can be reduced.
[0069] The front suspension 100 proposed by the present invention can be applied to a pure electric economical vehicle platform.
[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.
[0071] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.
Claims
1. A front suspension, characterized in that: include: A front subframe (1), wherein the front subframe (1) is suitable for being connected to a vehicle body; Two front swing arms (2), one of the front swing arms (2) is connected to the left side of the front subframe (1), and the other front swing arm (2) is connected to the right side of the front subframe (1); Two steering knuckles (3), the two steering knuckles (3) corresponding to the two front swing arms (2) one by one, and each steering knuckle (3) connected to a corresponding front swing arm (2); A steering machine (4), one end of the steering machine (4) is connected to one of the steering knuckles (3), and the other end of the steering machine (4) is connected to another of the steering knuckles (3); Two front sliding column assemblies (5), the two front sliding column assemblies (5) corresponding to the two steering knuckles (3) one by one, and each front sliding column assembly (5) connected to a corresponding steering knuckle (3); A stabilizer bar (6), wherein the stabilizer bar (6) is connected to the front subframe (1); Two connecting rods (7), the two connecting rods (7) corresponding to the two front sliding column assemblies (5) one by one, and each front sliding column assembly (5) is connected to the stabilizer bar (6) through a corresponding connecting rod (7); The stabilizer bar (6) is located at the front side of the front wheel center (8) of the vehicle, and the steering gear (4) is located at the rear side of the front wheel center (8).
2. The front suspension according to claim 1, characterized in that: The front swing arm (2) comprises: A swing arm body (21), wherein the swing arm body (21) is connected to the front subframe (1); A swing arm ball head (22), wherein the swing arm ball head (22) is connected to the steering knuckle (3); A connecting member (23) is connected between the swing arm body (21) and the swing arm ball head (22), and at least one of the swing arm body (21) and the swing arm ball head (22) is detachably connected to the connecting member (23).
3. The front suspension according to claim 1 or 2, characterized in that: The front subframe (1) comprises: a front crossbeam (11), a rear crossbeam (12), a left longitudinal beam (13) and a right longitudinal beam (14); the front crossbeam (11) and the rear crossbeam (12) are arranged at intervals in the front-to-rear direction; the left longitudinal beam (13) and the right longitudinal beam (14) are arranged at intervals in the left-to-right direction; the left longitudinal beam (13) is connected between the front crossbeam (11) and the rear crossbeam (12); and the right longitudinal beam (14) is connected between the front crossbeam (11) and the rear crossbeam (12).
4. The front suspension according to claim 3, characterized in that: The front cross beam (11) and the rear cross beam (12) both have body connection holes (15) suitable for connecting to the body, and the number of the body connection holes (15) on the rear cross beam (12) is greater than the number of the body connection holes (15) on the front cross beam (11).
5. The front suspension according to claim 4, characterized in that: The left and right ends of the front cross beam (11) are each provided with a vehicle body connection hole (15), and the left and right ends of the rear cross beam (12) are each provided with two vehicle body connection holes (15).
6. The front suspension according to claim 3, characterized in that: The left longitudinal beam (13) and the right longitudinal beam (14) both have a crush energy absorption structure (10).
7. The front suspension according to claim 6, characterized in that: The left longitudinal beam (13) and the right longitudinal beam (14) are both arc-shaped beams that bend downward, and the crush energy absorption structure (10) is located on the inner arc surface corresponding to the lowest point of the arc-shaped beam.
8. The front suspension according to claim 3, characterized in that: The front suspension also includes a suspension assembly (9), the suspension assembly (9) includes a suspension bracket (92) and a suspension bushing (91), the suspension bushing (91) is pressed into the suspension bracket (92), and the suspension bracket (92) and the front subframe (1) are integrally formed.
9. The front suspension according to claim 8, characterized in that: The number of the suspension assemblies (9) is multiple, and the multiple suspension assemblies (9) include: A left front suspension assembly (9a), wherein a suspension bracket (92) of the left front suspension assembly (9a) and the left longitudinal beam (13) are integrally formed; A right front suspension assembly (9b), wherein a suspension bracket (92) of the right front suspension assembly (9b) and the right longitudinal beam (14) are integrally formed; A rear suspension assembly (9c), wherein a suspension bracket (92) of the rear suspension assembly (9c) is passed through the rear cross beam (12) and is integrally formed with the rear cross beam (12).
10. A vehicle, characterized in that: Comprising a front suspension according to any one of claims 1-9.
Citation Information
Patent Citations
Novel suspension system
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Auxiliary frame of vehicle, vehicle body assembly of vehicle and vehicle
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