A universal mechanism for front and rear suspensions and a vehicle

Abstract

The present invention provides a universal mechanism for front and rear suspensions and a vehicle, belonging to the field of vehicle manufacturing. The universal mechanism for front and rear suspensions includes: a front suspension, a rear suspension, a front longitudinal beam and a rear longitudinal beam; the front longitudinal beam and the rear longitudinal beam have the same structure, and mounting grooves are provided at the same position of the side walls of the two; the front suspension is detachably connected to the front longitudinal beam through the mounting groove; the rear suspension is detachably connected to the rear longitudinal beam through the mounting groove; the front suspension can obtain the rear suspension by rotation and translation. The present invention realizes the universal installation of the front suspension and the rear suspension on the longitudinal beam of the vehicle body by providing mounting grooves at the same position of the front longitudinal beam and the rear longitudinal beam, and the front suspension can obtain the rear suspension by rotation and translation. The technical problem that the front and rear suspensions have different mounting points on the vehicle body side, which makes it difficult to disassemble and assemble the front and rear suspensions on the side of the vehicle body, is solved in the prior art.

Description

Technical Field

[0001] The invention relates to the field of vehicle manufacturing, and in particular to a universal mechanism for front and rear suspensions and a vehicle. Background Art

[0002] The automobile suspension system is a device that elastically connects the frame or load-bearing body and the axle in the automobile, and is also one of the important assemblies in modern automobiles. Its main function is to transmit the force and torque acting between the frame and the axle, and to buffer the impact force of uneven roads on the frame or body, and to attenuate the vibration caused thereby, so as to ensure that the car can run smoothly.

[0003] In order to adapt to the front and rear structures of different types of automobile chassis, some suspension structures have gradually emerged in the field, such as: McPherson independent suspension, double wishbone independent suspension, multi-link independent suspension, etc. At present, in order to make the suspension stability of the automobile higher, in the prior art, the front suspension of the automobile chassis generally adopts McPherson independent suspension or double wishbone independent suspension, and the rear suspension generally adopts multi-link independent suspension.

[0004] In order to adapt to the installation of different types of suspensions in the vehicle, in the prior art, it is often necessary to use different longitudinal beams and torsion boxes on the front and rear sides of the vehicle body, and the longitudinal beams and torsion boxes on the front side of the vehicle body and the longitudinal beams and torsion boxes on the rear side of the vehicle body need to be provided with hard points (such as mounting points) adapted to the corresponding types of suspensions to achieve the installation of the suspensions at the front and rear of the vehicle.

[0005] However, in the prior art, the front and rear suspensions are mounted at different points on the vehicle body side, which makes it difficult to disassemble and assemble the front and rear suspensions on the vehicle body side.

[0006] Based on this, the present invention is proposed. Summary of the invention

[0007] The present invention provides a universal mechanism for front and rear suspensions and a vehicle, so as to solve the technical problem in the prior art that the front and rear suspensions have different mounting points on the vehicle body side, which makes it difficult to disassemble and assemble the front and rear suspensions on the vehicle body side.

[0008] According to a first aspect of the present invention, a common mechanism for front and rear suspensions is provided, which includes: a front suspension, a rear suspension, a front longitudinal beam and a rear longitudinal beam; the front longitudinal beam and the rear longitudinal beam have the same structure, and mounting grooves are provided at the same position of the side walls of the two; the front suspension is detachably connected to the front longitudinal beam via the mounting groove; the rear suspension is detachably connected to the rear longitudinal beam via the mounting groove; the front suspension can obtain the rear suspension by rotation and translation.

[0009] Specifically, in the present application, the common mechanisms of the front and rear suspensions include: the front suspension and the front longitudinal beam on the front side of the vehicle body, and the rear suspension and the rear longitudinal beam on the rear side of the vehicle body. Among them, the front suspension can obtain the rear suspension by rotation and translation, that is, the front suspension and the rear suspension have the same structure, and the front longitudinal beam and the rear longitudinal beam have the same structure. Therefore, the front suspension and the rear suspension can be mass-produced using one mold, and the front longitudinal beam and the rear longitudinal beam can also be mass-produced using one mold, thereby reducing the cost of molds required to produce different suspensions and different longitudinal beams.

[0010] In addition, a mounting groove is provided at the same position of the side wall of the front suspension and the rear suspension, that is, the mounting grooves of the two are arranged in the same manner. Because the front suspension and the rear suspension have the same structure, and the front longitudinal beam and the rear longitudinal beam have the same structure, the front suspension is detachably connected to the front longitudinal beam through the mounting groove, and the rear suspension is detachably connected to the rear longitudinal beam through the mounting groove. Therefore, the front suspension and the rear suspension can be universalized on the front longitudinal beam and the rear longitudinal beam of the vehicle body, that is, the front suspension can be installed on the rear longitudinal beam by rotation and translation, and the rear suspension can be installed on the front longitudinal beam by rotation and translation. In other words, only one type of suspension is required to meet the installation of the front suspension and the rear suspension on the front longitudinal beam and the rear longitudinal beam of the vehicle body, which not only reduces the cost, but also facilitates the disassembly and installation of the front suspension and the rear suspension. The technical problem that the front and rear suspensions are installed at different points on the vehicle body side in the prior art, which makes it difficult to disassemble and assemble the front and rear suspensions on the side of the vehicle body, is solved.

[0011] In addition, since the same type of suspension is installed at the front of the vehicle body (front longitudinal beam) and the rear of the vehicle body (rear longitudinal beam), the rear wheels connected to the rear suspension can also have a steering function, thereby improving the driving experience of steering, reversing, and merging lanes.

[0012] Optionally, the front and rear longitudinal beams may be longitudinal beams of a cast aluminum structure.

[0013] Preferably, it also includes: a front torque box and a rear torque box; the front torque box and the rear torque box have the same structure, and installation grooves are provided at the same position of the side walls of the two; the front torque box and the front longitudinal beam are detachably connected; the rear torsion box and the rear longitudinal beam are detachably connected; the front suspension is detachably connected to the front torque box through the installation groove; the rear suspension is detachably connected to the rear torque box through the installation groove.

[0014] The common mechanism of the front and rear suspensions also includes a front torque box and a rear torque box. The front torque box is detachably connected to the front longitudinal beam, and the rear torque box is detachably connected to the rear longitudinal beam. The whole formed by the front torque box and the front longitudinal beam can obtain the rear torque box and the rear longitudinal beam through rotation and translation. The front torque box and the rear torque box are both provided with mounting grooves at the same position. The front suspension is detachably connected to the front torque box through the mounting grooves, and the rear suspension is detachably connected to the rear torque box through the mounting grooves. It is suitable for the complex installation environment in the vehicle. The front suspension is respectively connected to the front torque box and the front longitudinal beam, and the rear suspension is respectively connected to the rear torque box and the rear longitudinal beam, which can provide more installation space for other components in the vehicle (such as the output shaft of the motor). Moreover, the same mounting groove is provided at the same position of the front torque box and the rear torque box, which can realize the commonality of the front suspension and the rear suspension, greatly reduce the mold cost, and facilitate the disassembly and installation of the front suspension and the rear suspension.

[0015] Optionally, the front and rear torque boxes may be torque boxes of cast aluminum structure.

[0016] Preferably, the front suspension includes at least: a steering knuckle, an upper control arm, a lower control arm and a sliding column; one end of the upper control arm is detachably connected to the top end of the steering knuckle, and the other end is detachably connected to the front torque box and the front longitudinal beam through a mounting groove; one end of the lower control arm is detachably connected to the bottom end of the steering knuckle, and the other end is detachably connected to the front longitudinal beam through a mounting groove; the sliding column is located on the outside of the upper control arm; one end of the sliding column is detachably connected to the lower control arm, and the other end is detachably connected to the front longitudinal beam.

[0017] The front suspension includes: a steering knuckle, an upper control arm, a lower control arm and a sliding column. The steering knuckle mainly plays the role of positioning and bearing. As the carrier of the upper control arm and the lower control arm, it is a very important component of the automobile chassis mechanism. Especially when the upper control arm and the lower control arm need to contain multiple functional parts, the steering knuckle needs to take into account the positioning and bearing of multiple functional parts. Among them, one end of the upper control arm is detachably connected to the top of the steering knuckle, and the other end is detachably connected to the front longitudinal beam and the front torque box through the mounting groove. One end of the lower control arm is detachably connected to the bottom of the steering knuckle, and the other end is detachably connected to the front longitudinal beam through the mounting groove. It can ensure that the upper control arm is stably connected to the body, and when the wheels of the car jump up and down, the steering knuckle can jump with the wheels of the car; the sliding column and the lower control arm are detachably connected, and the sliding column is set on the outside of the upper control arm. Through such a setting, compared with the prior art, the present application cancels the lower fork structure, thereby reducing the installation point height of the sliding column and the front longitudinal beam mounting plate, thereby meeting the flat floor requirements of the new skateboard platform.

[0018] Preferably, the mounting groove includes a first connecting portion, a second connecting portion, a third connecting portion, a fourth connecting portion, and a fifth connecting portion; the first connecting portion is arranged on the upper half of one side of the front longitudinal beam and is detachably connected to the sliding column; the second connecting portion is arranged on the upper half of one side of the front longitudinal beam and is detachably connected to the upper control arm; the third connecting portion is arranged on the upper half of one side of the front torque box and is detachably connected to the upper control arm; the fourth connecting portion and the fifth connecting portion are arranged on the lower half of one side of the front longitudinal beam and extend outward along the Z direction; the lower control arm is detachably connected to the fourth connecting portion and the fifth connecting portion.

[0019] The mounting grooves arranged on the front longitudinal beam and the front torque box include: a first connection part, a second connection part, a third connection part, a fourth connection part, and a fifth connection part. Among them, the first connection part is arranged on the upper half of one side of the front longitudinal beam and is detachably connected to the sliding column; the second connection part is arranged on the upper half of one side of the front longitudinal beam and is detachably connected to the upper control arm; the third connection part is arranged on the upper half of one side of the front torque box and is detachably connected to the upper control arm; the fourth connection part and the fifth connection part are arranged on the lower half of one side of the front longitudinal beam and extend outward along the Z direction. It should be noted that the front longitudinal beam and the front torque box are placed vertically, and the Z direction is the Z axis direction of the vehicle, that is, the Z direction is parallel to the vertical placement direction of the front longitudinal beam. By setting in this way, the front suspension and the rear suspension in the complex installation environment in the vehicle will not affect the installation of other parts of the vehicle.

[0020] It should be noted that the first connection portion, the second connection portion, the third connection portion, the fourth connection portion, and the fifth connection portion are all located on the outer side walls of the corresponding front longitudinal beam and the front torsion box.

[0021] Preferably, a through slot is provided on the lower control arm; a first mounting portion and a second mounting portion are provided on the side wall of the through slot; the first mounting portion and the second mounting portion respectively extend downward in a direction perpendicular to the through slot; one end of the sliding column passes through the through slot and is detachably connected to the first mounting portion and the second mounting portion respectively.

[0022] A through slot is provided in the middle of the lower control arm, and a first mounting portion and a second mounting portion extending downward perpendicularly to the through slot are provided on the sidewall of the through slot, and the sliding column passes through the through slot and is connected to the first mounting portion and the second mounting portion. This arrangement can facilitate the connection between the sliding column and the lower control arm, and can also better reduce the installation height of the sliding column.

[0023] Preferably, the front suspension also includes a transverse stabilizer bar assembly; the mounting groove also includes a sixth connecting portion; the sixth connecting portion is arranged in the lower half of one side of the front torque box; the transverse stabilizer bar assembly passes through the sixth connecting portion, and its two ends are respectively detachably connected to the lower control arm on the left side of the vehicle and the lower control arm on the right side of the vehicle.

[0024] The installation groove also includes a sixth connection part, which is arranged at the lower half of one side of the front torque box. The front suspension also includes a lateral stabilizer bar assembly, and one end of the lateral stabilizer bar assembly can pass through the sixth connection part to achieve detachable connection between the two ends of the lateral stabilizer bar assembly and the lower control arm on the left side of the vehicle and the lower control arm on the right side of the vehicle, respectively. By means of such an arrangement, the stability of the vehicle during operation can be ensured.

[0025] Preferably, the lateral stabilizer bar assembly includes: a stabilizer bar and two connecting rods; the two connecting rods are respectively detachably connected to the lower control arm on the left side of the vehicle and the lower control arm on the right side of the vehicle; the stabilizer bar passes through the sixth connecting portion, and its two ends are respectively detachably connected to the two connecting rods.

[0026] The lateral stabilizer bar assembly includes a stabilizer bar and two connecting rods. The connecting rod is vertically arranged, one end of the connecting rod is detachably connected to the lower control arm, and the other end is detachably connected to the stabilizer bar. The stabilizer bar passes through the sixth connecting portion, and its two ends are detachably connected to the connecting rod, which can ensure more reasonable use of space in a complex vehicle installation environment.

[0027] Preferably, the upper control arm is a first "Y"-shaped connecting structure, and the lower control arm is a second "Y"-shaped connecting structure; two first fixing parts for respectively connecting the second connecting part and the third connecting part are arranged on the same side of the first "Y"-shaped connecting structure, and a first fixing part for connecting the steering knuckle is arranged on the other side; two second fixing parts for respectively connecting the fourth connecting part and the fifth connecting part are arranged on the same side of the second "Y"-shaped connecting structure, and a second fixing part for connecting the steering knuckle is arranged on the other side.

[0028] The upper control arm is a first "Y"-shaped connection structure, the lower control arm is a second "Y"-shaped connection structure, and the same side of the first "Y"-shaped connection structure has two first fixing parts for connecting to the vehicle body longitudinal beam, and the same side of the second "Y"-shaped connection structure has two second fixing parts for connecting to the vehicle body longitudinal beam. Because the wheels of the car will form an inward squeezing force when bouncing, this force will act on the position where the first "Y"-shaped connection structure and the second "Y"-shaped connection structure connect to the front longitudinal beam. Therefore, setting two installation points can more effectively ensure that the first "Y"-shaped connection structure and the second "Y"-shaped connection structure will not be deformed or detached due to excessive force, thereby improving the stability of the connection between the two and the front longitudinal beam and the front torsion box.

[0029] Preferably, a through hole for the motor drive shaft to pass through is opened in the middle of the front longitudinal beam.

[0030] A through hole is provided in the middle of the front longitudinal beam, and the distance between the sliding column and the upper control arm is sufficient for the motor drive shaft to extend into the through hole and connect with the wheel hub bearing of the vehicle, thereby driving the vehicle wheel to rotate. The first connecting portion and the second connecting portion are arranged above the through hole, and the fourth connecting portion and the fifth connecting portion are arranged below the through hole.

[0031] Optionally, the through hole may be a square hole.

[0032] According to a second aspect of the present invention, there is provided a vehicle comprising the common front and rear suspension mechanism of the first aspect.

[0033] The above-mentioned common mechanism for the front and rear suspensions is assembled in the vehicle. It can meet the requirements that the structures of the front suspension and the rear suspension of the vehicle are completely identical, the structures of the front longitudinal beam and the rear longitudinal beam are completely identical, the structures of the front torsion box and the rear torsion box are completely identical, the installation points on the front longitudinal beam and the rear longitudinal beam are completely identical, and the installation points on the front torsion box and the rear torsion box are completely identical. Therefore, only one type of suspension is required to meet the requirements of the installation of the front suspension and the rear suspension on the front longitudinal beam and the rear longitudinal beam of the vehicle body, which not only reduces the cost, but also facilitates the disassembly and installation of the front suspension and the rear suspension.

[0034] In summary, the present application adopts the same structure and installation slot setting position of the front longitudinal beam and the rear longitudinal beam, the same structure and installation slot setting position of the front torsion box and the rear torsion box, and the same front suspension and rear suspension, which can meet the universalization of the front suspension and the rear suspension, that is, the front suspension can be assembled to the rear torsion box and the rear longitudinal beam, and the rear suspension can be assembled to the front torsion box and the front longitudinal beam; that is to say, the use of one type of front suspension can realize the assembly of the front and rear suspensions of the vehicle, thereby making the assembly and disassembly of the front suspension simpler and reducing the cost of the mold. It solves the technical problem in the prior art that the front and rear suspensions have different installation points on the vehicle body side, which makes it difficult to disassemble and assemble the front and rear suspensions on the side of the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A schematic diagram of the structure of a universal mechanism for front and rear suspensions provided in an embodiment of the present invention;

[0037] Figure 2 A schematic structural diagram of a mechanism common to front and rear suspensions provided in one embodiment of the present invention;

[0038] Figure 3 A schematic structural diagram of a mechanism common to front and rear suspensions provided in another embodiment of the present invention; and

[0039] Figure 4 A schematic structural diagram of a mechanism common to front and rear suspensions provided in yet another embodiment of the present invention.

[0040] In the above drawings, the components represented by the reference numerals are listed as follows:

[0041] 1. Front suspension; 2. Front longitudinal beam; 3. Front torque box;

[0042] 101. upper control arm; 102. lower control arm; 103. sliding column; 104. lateral stabilizer bar assembly;

[0043] 201, first connection part; 202, second connection part; 203, third connection part; 204, fourth connection part; 205, fifth connection part; 206, sixth connection part;

[0044] 1021, first installation part; 1022, second installation part;

[0045] 1041. stabilizer bar; 1042. connecting rod; 1043. clamp;

[0046] 401. Through hole. DETAILED DESCRIPTION

[0047] In order to make the above and other features and advantages of the present invention more clear, the present invention is further described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art and are only exemplary and not restrictive.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] 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 the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] 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 or an electrical connection; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact 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.

[0052] 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 the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Please refer to Figure 1-Figure 4In a specific implementation scheme of the modular connection device provided by the present invention, the common mechanism of the front and rear suspensions includes: a front suspension 1, a rear suspension, a front longitudinal beam 2 and a rear longitudinal beam; the front longitudinal beam 2 has the same structure as the rear longitudinal beam, and mounting grooves are provided at the same position of the side walls of the two; the front suspension 1 is detachably connected to the front longitudinal beam 2 through the mounting groove; the rear suspension is detachably connected to the rear longitudinal beam through the mounting groove; the front suspension 1 can obtain the rear suspension through rotation and translation.

[0054] A preferred embodiment of the present invention may be a combination of any one or more of the following on the basis of the above embodiments:

[0055] The common mechanisms of the front and rear suspensions also include: a front torque box 3 and a rear torque box; the front torque box 3 and the rear torque box have the same structure, and mounting grooves are provided at the same position of the side walls of the two; the front torque box 3 and the front longitudinal beam 2 are detachably connected; the rear torque box and the rear longitudinal beam are detachably connected; the front suspension 1 is detachably connected to the front torque box 3 through the mounting groove; the rear suspension is detachably connected to the rear torque box through the mounting groove;

[0056] The front suspension 1 at least includes: a steering knuckle, an upper control arm 101, a lower control arm 102 and a sliding column 103; one end of the upper control arm 101 is detachably connected to the top of the steering knuckle, and the other end is detachably connected to the front torque box 3 and the front longitudinal beam 2 through a mounting groove; one end of the lower control arm 102 is detachably connected to the bottom end of the steering knuckle, and the other end is detachably connected to the front longitudinal beam 2 through a mounting groove; the sliding column 103 is located on the outer side of the upper control arm 101; one end of the sliding column 103 is detachably connected to the lower control arm 102, and the other end is detachably connected to the front longitudinal beam 2;

[0057] The mounting groove includes a first connection portion 201, a second connection portion 202, a third connection portion 203, a fourth connection portion 204, and a fifth connection portion 205; the first connection portion 201 is arranged at the upper half of one side of the front longitudinal beam 2, and is detachably connected to the sliding column 103; the second connection portion 202 is arranged at the upper half of one side of the front longitudinal beam 2, and is detachably connected to the upper control arm 101; the third connection portion 203 is arranged at the upper half of one side of the front torque box 3, and is detachably connected to the upper control arm 101; the fourth connection portion 204 and the fifth connection portion 205 are arranged at the lower half of one side of the front longitudinal beam 2, and extend outwardly along the Z direction; the lower control arm 102 is detachably connected to the fourth connection portion 204 and the fifth connection portion 205;

[0058] A through slot is formed on the lower control arm 102; a first mounting portion 1021 and a second mounting portion 1022 are formed on the side wall of the through slot; the first mounting portion 1021 and the second mounting portion 1022 extend downward in a direction perpendicular to the through slot respectively; one end of the sliding column 103 passes through the through slot and is detachably connected to the first mounting portion 1021 and the second mounting portion 1022 respectively;

[0059] The front suspension 1 further includes a lateral stabilizer bar assembly 104; the mounting groove further includes a sixth connection portion 206; the sixth connection portion 206 is arranged at the lower half of one side of the front torque box 3; the lateral stabilizer bar assembly 104 passes through the sixth connection portion 206, and its two ends are detachably connected to the lower control arm 102 on the left side of the vehicle and the lower control arm 102 on the right side of the vehicle respectively;

[0060] The lateral stabilizer bar assembly 104 includes: a stabilizer bar 1041 and two connecting rods 1042; the two connecting rods 1042 are detachably connected to the lower control arm 102 on the left side of the vehicle and the lower control arm 102 on the right side of the vehicle respectively; the stabilizer bar 1041 passes through the sixth connecting portion 206, and its two ends are detachably connected to the two connecting rods 1042 respectively;

[0061] The upper control arm 101 is a first "Y"-shaped connection structure, and the lower control arm 102 is a second "Y"-shaped connection structure; two first fixing parts for connecting the second connection part 202 and the third connection part 203 are arranged on the same side of the first "Y"-shaped connection structure, and a first fixing part for connecting the steering knuckle is arranged on the other side; two second fixing parts for connecting the fourth connection part 204 and the fifth connection part 205 are arranged on the same side of the second "Y"-shaped connection structure, and a second fixing part for connecting the steering knuckle is arranged on the other side;

[0062] A through hole 401 for the motor drive shaft to pass through is provided in the middle of the front longitudinal beam 2 .

[0063] In another specific embodiment provided by the present invention, a vehicle is provided, which can include a common mechanism for front and rear suspensions.

[0064] In a specific embodiment of the modular connection device provided by the present invention, the common mechanism of the front and rear suspensions includes: a front suspension 1 and a front longitudinal beam 2 on the front side of the vehicle body, and a rear suspension and a rear longitudinal beam on the rear side of the vehicle body. Among them, the front suspension 1 can obtain the rear suspension by rotation and translation, that is, the front suspension 1 has the same structure as the rear suspension, and the front longitudinal beam 2 has the same structure as the rear longitudinal beam. Therefore, the front suspension 1 and the rear suspension can be mass-produced using one mold, and the front longitudinal beam 2 and the rear longitudinal beam can also be mass-produced using one mold, thereby reducing the cost of molds required for producing different suspensions and different longitudinal beams. An installation groove is provided at the same position of the side wall of the front suspension 1 and the rear suspension, that is, the installation grooves of the two are arranged in the same way. Because the front suspension 1 has the same structure as the rear suspension, and the front longitudinal beam 2 has the same structure as the rear longitudinal beam, the front suspension 1 is detachably connected to the front longitudinal beam 2 through the installation groove, and the rear suspension is detachably connected to the rear longitudinal beam through the installation groove. Therefore, the front suspension 1 and the rear suspension can be universalized on the front longitudinal beam 2 and the rear longitudinal beam of the vehicle body, that is, the front suspension 1 can be installed on the rear longitudinal beam by rotation and translation, and the rear suspension can be installed on the front longitudinal beam 2 by rotation and translation. In other words, only one type of suspension is needed to meet the installation of the front suspension 1 and the rear suspension on the front longitudinal beam 2 and the rear longitudinal beam of the vehicle body, which not only reduces the cost, but also facilitates the disassembly and installation of the front suspension 1 and the rear suspension. Since one type of suspension is installed on the front part of the vehicle body (front longitudinal beam 2) and the rear part of the vehicle body (rear longitudinal beam), the rear wheel connected to the rear suspension can also have a steering function, thereby improving the driving experience of steering, reversing, and merging.

[0065] Optionally, the front longitudinal beam 2 and the rear longitudinal beam are longitudinal beams of a cast aluminum structure.

[0066] Combination Figure 1-Figure 4 As shown, in a preferred embodiment, the common mechanism of the front and rear suspensions also includes a front torsion box 3 and a rear torsion box, the front torsion box 3 is detachably connected to the front longitudinal beam 2, and the rear torsion box is detachably connected to the rear longitudinal beam, and the whole formed by the front torsion box 3 and the front longitudinal beam 2 can obtain the rear torsion box and the rear longitudinal beam through rotation and translation; installation grooves are provided at the same positions of the front torsion box 3 and the rear torsion box, the front suspension 1 is detachably connected to the front torsion box 3 through the installation groove, and the rear suspension is detachably connected to the rear torsion box through the installation groove, which is adapted to the complex installation environment in the vehicle, and the front suspension 1 is respectively connected to the front torsion box 3 and the front longitudinal beam 2, and the rear suspension is respectively connected to the rear torsion box and the rear longitudinal beam.

[0067] Optionally, the front torque box 3 and the rear torque box are torque boxes with cast aluminum structures.

[0068] In an optional embodiment, the front torque box 3 can be rotated 180° around its center point to obtain the rear torque box; the front longitudinal beam 2 can be rotated 180° around its center point to obtain the rear longitudinal beam.

[0069] In some more preferred embodiments, the front suspension 1 includes: a steering knuckle, an upper control arm 101, a lower control arm 102 and a sliding column 103. The steering knuckle mainly plays the role of positioning and bearing. As a carrier of the upper control arm 101 and the lower control arm 102, it is a very important component of the automobile chassis structure. Especially when the upper control arm 101 and the lower control arm 102 need to include multiple functional parts, the steering knuckle needs to take into account the positioning and bearing of multiple functional parts. Among them, one end of the upper control arm 101 is detachably connected to the top of the steering knuckle, and the other end is detachably connected to the front longitudinal beam 2 and the front torque box 3 through a mounting groove; one end of the lower control arm 102 is detachably connected to the bottom of the steering knuckle, and the other end is detachably connected to the front longitudinal beam 2 through a mounting groove, which can ensure that the upper control arm 101 is stably connected to the vehicle body and that the steering knuckle can jump with the wheels of the vehicle when the wheels of the vehicle jump up and down; the sliding column 103 and the lower control arm 102 are detachably connected, and the sliding column 103 is arranged on the outside of the upper control arm 101.

[0070] In some more preferred embodiments, the mounting grooves arranged on the front longitudinal beam 2 and the front torque box 3 include: a first connection portion 201, a second connection portion 202, a third connection portion 203, a fourth connection portion 204, and a fifth connection portion 205. Among them, the first connection portion 201 is arranged at the upper half of one side of the front longitudinal beam 2, and is detachably connected to the sliding column 103; the second connection portion 202 is arranged at the upper half of one side of the front longitudinal beam 2, and is detachably connected to the upper control arm 101; the third connection portion 203 is arranged at the upper half of one side of the front torque box 3, and is detachably connected to the upper control arm 101; the fourth connection portion 204 and the fifth connection portion 205 are arranged at the lower half of one side of the front longitudinal beam 2, and extend outward along the Z direction. It should be noted that the front longitudinal beam 2 and the front torque box 3 are placed vertically, and the Z direction is the Z axis direction of the vehicle, that is, the Z direction is parallel to the vertical placement direction of the front longitudinal beam 2.

[0071] It should be noted that the first connection portion 201 , the second connection portion 202 , the third connection portion 203 , the fourth connection portion 204 , and the fifth connection portion 205 are all located on the outer side walls of the corresponding front longitudinal beam 2 and the front torque box 3 .

[0072] In some more preferred embodiments, the mounting groove also includes a sixth connection portion 206, and the sixth connection portion 206 is arranged in the lower half of one side of the front torque box 3. The front suspension 1 also includes a transverse stabilizer bar assembly 104, and one end of the transverse stabilizer bar assembly 104 can pass through the sixth connection portion 206 to achieve a detachable connection between the two ends of the transverse stabilizer bar assembly 104 and the lower control arm 102 on the left side of the vehicle and the lower control arm 102 on the right side of the vehicle, respectively.

[0073] Combination Figure 1 , Figure 2, Figure 3 As shown, in an optional embodiment, the sixth connecting portion 206 is a circular structure provided with a through hole 401, and the transverse stabilizer bar assembly 104 is a cylindrical bar body structure.

[0074] Combination Figure 1 , Figure 2 , Figure 3 As shown, in an optional embodiment, the first connecting part 201, the second connecting part 202, the third connecting part 203, the fourth connecting part 204, and the fifth connecting part 205 are all square grooves, and connecting holes for connecting the corresponding parts are provided on the side walls of the square grooves. For example, a connecting hole for connecting the sliding column 103 is provided on the side wall of the first connecting part 201.

[0075] Combination Figure 1 , Figure 2 , Figure 3 As shown, in an optional embodiment, the other end of the front torque box 3 that is not detachably connected to the front longitudinal beam 2 is detachably connected to the body cross beam, which can ensure that the front longitudinal beam 2 and the body cross beam will not be in direct contact. When the vehicle collides, the impact force generated by the collision will not directly act on the body cross beam and the front longitudinal beam 2, and the energy generated by the impact force can be absorbed by the front torque box 3 to a certain extent, thereby greatly reducing the degree of damage to the vehicle.

[0076] Combination Figure 1 , Figure 2 , Figure 3 As shown, in an optional embodiment, Figure 2 For example, the side of the front torque box 3 facing the viewer is the front side, that is, the outer wall of the front torque box 3, the viewer's left hand direction is the left side of the front torque box 3, and the viewer's right hand direction is the right side of the front torque box 3, that is, a square connection portion is provided on the right side of the third connection portion 203, which can facilitate the bolt connection of the upper control arm 101 and the front torque box 3 through the third connection portion 203; a plurality of notches are provided on the right side of the square connection portion, which can make the overall weight of the front torque box 3 lighter, thereby increasing the vehicle's cruising range.

[0077] Combination Figure 1 , Figure 2 , Figure 3 As shown, in an optional embodiment, suitable for the installation of components such as the vehicle's suspension system, drive system and electrical accessory system, a plurality of installation slots other than the first connection part 201, the second connection part 202, the fourth connection part 204 and the fifth connection part 205 are opened on the front longitudinal beam 2 of the vehicle, and each installation slot is a square structure, so that when other components (such as suspension) need to be installed, it will not affect the opening of connection holes on the side walls of the installation slots.

[0078] Combination Figure 1, Figure 2 , Figure 3 As shown, in some more preferred embodiments, a through slot is provided in the middle of the lower control arm 102, and a first mounting portion 1021 and a second mounting portion 1022 extending downward perpendicularly to the through slot are provided on the sidewalls of the through slot, and the sliding column 103 partially passes through the through slot and is connected to the first mounting portion 1021 and the second mounting portion 1022. This arrangement can facilitate the connection between the sliding column 103 and the lower control arm 102, and can also better reduce the installation height of the sliding column 103.

[0079] Combination Figure 1-Figure 3 As shown, in an optional embodiment, the end of the sliding column 103 is a first connection structure with protrusions at both ends, which can meet the requirement of extending one end of the sliding column 103 into the first connection part 201, and the protrusions at both ends are respectively bolted to the connection holes on the side wall of the first connection part 201, and the other end extends into the through groove, and the protrusions at both ends are respectively bolted to the first mounting part 1021 and the second mounting part 1022.

[0080] In a preferred embodiment, the lateral stabilizer bar assembly 104 includes a stabilizer bar 1041 and two connecting rods 1042. The connecting rod 1042 is vertically arranged, one end of the connecting rod 1042 is detachably connected to the lower control arm 102, and the other end is detachably connected to the stabilizer bar 1041. The stabilizer bar 1041 passes through the sixth connecting portion 206, and its two ends are detachably connected to the connecting rod 1042, respectively, which can ensure more reasonable use of space in a complex vehicle installation environment.

[0081] Combination Figure 3-Figure 4 As shown, in an optional embodiment, two clips 1043 are provided on the stabilizer bar 1041, and the stabilizer bar 1041 is detachably connected to the vehicle cross beam through the clips 1043. A bushing is provided in the clip 1043, and the bushing is sleeved on the stabilizer bar 1041, so as to achieve the isolation effect of the clip 1043 and the stabilizer bar 1041. Since the clip 1043 is made of metal and the stabilizer bar 1041 is also made of metal, if the two are in contact, wear is bound to occur. By providing the bushing, wear of the stabilizer bar 1041 and the clip 1043 can be effectively avoided.

[0082] In a preferred embodiment, the upper control arm 101 is a first "Y"-shaped connection structure, the lower control arm 102 is a second "Y"-shaped connection structure, and the same side of the first "Y"-shaped connection structure has two first fixing parts for connecting to the vehicle body longitudinal beam, and the same side of the second "Y"-shaped connection structure has two second fixing parts for connecting to the vehicle body longitudinal beam. Since the wheels of the automobile will form an inward squeezing force when bouncing, this force will act on the position where the first "Y"-shaped connection structure and the second "Y"-shaped connection structure connect to the front longitudinal beam 2. Therefore, setting two installation points can more effectively ensure that the first "Y"-shaped connection structure and the second "Y"-shaped connection structure will not be deformed or detached due to excessive force, thereby improving the stability of the connection between the two and the front longitudinal beam 2 and the front torque box 3.

[0083] Combination Figure 1-Figure 4 As shown, in some more preferred embodiments, the two first fixing parts on the same side of the upper control arm 101 are both second connection structures with protrusions at both ends, which can satisfy the requirements that the two protrusions of the upper control arm 101 extend into the second connection part 202 and the third connection part 203, and the protrusions at both ends are respectively bolted to the connection holes on the side walls of the second connection part 202 and the third connection part 203; the two second fixing parts on the same side of the lower control arm 102 are both second connection structures with protrusions at both ends, which can satisfy the requirements that the two protrusions of the upper control arm 101 extend into the fourth connection part 204 and the fifth connection part 205, and the protrusions at both ends are respectively bolted to the connection holes on the side walls of the fourth connection part 204 and the fifth connection part 205.

[0084] In some preferred embodiments, a through hole 401 is provided in the middle of the front longitudinal beam 2, and the distance between the sliding column 103 and the upper control arm 101 is sufficient for the motor drive shaft to extend into the through hole 401 and connect with the wheel hub bearing of the vehicle, thereby driving the wheels of the vehicle to rotate. The first connecting portion 201 and the second connecting portion 202 are distributed above the through hole 401, and the fourth connecting portion 204 and the fifth connecting portion 205 are distributed below the through hole 401.

[0085] Optionally, the through hole 401 may be a square hole.

[0086] In an optional embodiment, the common mechanism for the front and rear suspensions is installed in the vehicle. It can meet the requirements that the structures of the front suspension 1 and the rear suspension of the vehicle are completely identical, the structures of the front longitudinal beam 2 and the rear longitudinal beam are completely identical, the structures of the front torque box 3 and the rear torque box are completely identical, the installation points on the front longitudinal beam 2 and the rear longitudinal beam are completely identical, and the installation points on the front torque box 3 and the rear torque box are completely identical. Therefore, only one type of suspension is required to meet the requirements of the installation of the front suspension 1 and the rear suspension on the front longitudinal beam 2 and the rear longitudinal beam of the vehicle body, which not only reduces the cost, but also facilitates the disassembly and installation of the front suspension 1 and the rear suspension.

[0087] 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 mechanism common to front and rear suspensions, characterized in that: The mechanism includes: a front suspension, a rear suspension, a front longitudinal beam and a rear longitudinal beam; The front longitudinal beam and the rear longitudinal beam have the same structure, and mounting grooves are provided at the same position of the side walls of the two beams; The front suspension is detachably connected to the front longitudinal beam via the mounting groove; The rear suspension is detachably connected to the rear longitudinal beam via the mounting groove; The front suspension can obtain the rear suspension through rotation and translation; The mechanism also includes: a front torque box and a rear torque box; The front torque box and the rear torque box have the same structure, and the mounting groove is provided at the same position of the side walls of the two boxes; The front torsion box and the front longitudinal beam are detachably connected; The rear torsion box and the rear longitudinal beam are detachably connected; The front suspension is detachably connected to the front torque box through the mounting slot; The rear suspension is detachably connected to the rear torsion box via the mounting slot; The front suspension at least includes: a steering knuckle, an upper control arm, a lower control arm and a sliding column; One end of the upper control arm is detachably connected to the top end of the steering knuckle, and the other end is detachably connected to the front torque box and the front longitudinal beam through a mounting groove; One end of the lower control arm is detachably connected to the bottom end of the steering knuckle, and the other end is detachably connected to the front longitudinal beam through a mounting groove; The sliding column is located on the outer side of the upper control arm; One end of the sliding column is detachably connected to the lower control arm, and the other end is detachably connected to the front longitudinal beam.

2. The common mechanism for front and rear suspensions according to claim 1, characterized in that: The mounting groove includes a first connecting portion, a second connecting portion, a third connecting portion, a fourth connecting portion, and a fifth connecting portion; The first connecting portion is arranged at an upper half of one side of the front longitudinal beam and is detachably connected to the sliding column; The second connecting portion is arranged at an upper half of one side of the front longitudinal beam and is detachably connected to the upper control arm; The third connection portion is disposed on an upper half of one side of the front torque box and is detachably connected to the upper control arm; The fourth connecting portion and the fifth connecting portion are arranged at a lower half of one side of the front longitudinal beam and extend outwardly along the Z direction; The lower control arm is detachably connected to the fourth connecting portion and the fifth connecting portion.

3. The common mechanism for front and rear suspensions according to claim 2, characterized in that: The lower control arm is provided with a through slot; A first mounting portion and a second mounting portion are provided on the side wall of the through slot; The first mounting portion and the second mounting portion respectively extend downward in a direction perpendicular to the through slot; One end of the sliding column passes through the through slot and is detachably connected to the first mounting portion and the second mounting portion respectively.

4. The common mechanism for front and rear suspensions according to claim 3, characterized in that: The front suspension also includes a lateral stabilizer bar assembly; The mounting slot further includes a sixth connecting portion; The sixth connecting portion is arranged at the lower half of one side of the front torque box; The lateral stabilizer bar assembly passes through the sixth connecting portion, and two ends thereof are detachably connected to the lower control arm on the left side of the vehicle and the lower control arm on the right side of the vehicle, respectively.

5. The common mechanism for front and rear suspensions according to claim 4, characterized in that: The lateral stabilizer bar assembly comprises: a stabilizer bar and two connecting rods; The two connecting rods are detachably connected to the lower control arm on the left side of the vehicle and the lower control arm on the right side of the vehicle respectively; The stabilizing rod passes through the sixth connecting portion, and two ends thereof are respectively detachably connected to the two connecting rods.

6. The common mechanism for front and rear suspensions according to claim 5, characterized in that: The upper control arm is a first "Y"-shaped connection structure, and the lower control arm is a second "Y"-shaped connection structure; Two first fixing parts for connecting the second connecting part and the third connecting part are respectively arranged on the same side of the first "Y"-shaped connecting structure, and one first fixing part for connecting the steering knuckle is arranged on the other side; Two second fixing portions for connecting the fourth connecting portion and the fifth connecting portion respectively are arranged on the same side of the second "Y"-shaped connecting structure, and one second fixing portion for connecting the steering knuckle is arranged on the other side.

7. The common mechanism for front and rear suspensions according to claim 2, characterized in that: A through hole for the motor drive shaft to pass through is provided in the middle of the front longitudinal beam.

8. A vehicle, characterized in that: A mechanism common to front and rear suspensions comprising any one of claims 1-7.

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