Non-independent suspension assembly of electric vehicle

Abstract

The present invention provides a non-independent suspension assembly for an electric vehicle, comprising a front axle bracket, two shock absorbers, two leaf springs, a steering tie rod, a left drive axle shaft, a right drive axle shaft, a left steering knuckle, a right steering knuckle, a left front wheel hub unit, and a right front wheel hub unit. The front axle bracket comprises a front axle pipe beam, a left mounting seat, and a right mounting seat. A motor drive assembly is provided on the front portion of the vehicle frame. The left front wheel hub unit is provided on the outside of the left steering knuckle, and the left steering knuckle is rotatably provided on the outside of the left mounting seat. The right front wheel hub unit is provided on the outside of the right steering knuckle, and the right steering knuckle is rotatably provided on the outside of the right mounting seat. The left end of the left drive axle shaft passes through the left mounting seat and is rotatably connected to the left front wheel hub unit. The right end of the right drive axle shaft passes through the right mounting seat and is rotatably connected to the right front wheel hub unit. A differential of the motor drive assembly is connected to the right end of the left drive axle shaft and the left end of the right drive axle shaft, respectively. The present invention can reduce the failure rate of the motor and improve the ride comfort of the vehicle.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile chassis, and in particular relates to a non-independent suspension assembly of an electric vehicle. Background Art

[0002] In the field of electric light trucks, leaf spring suspension is commonly used for both front and rear suspension, with the rear axle driven directly by an electric motor. However, since the motor and reducer are directly mounted on the rear axle, road vibrations are directly transmitted to the motor, resulting in a high motor failure rate and increased unsprung mass, leading to poor ride comfort. Therefore, designing a non-independent suspension assembly for electric vehicles to reduce motor failure rates and improve ride comfort has become a pressing technical challenge for those skilled in the art. Summary of the Invention

[0003] The purpose of the present invention is to provide a non-independent suspension assembly for an electric vehicle to solve the above-mentioned technical problems in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A non-independent suspension assembly for an electric vehicle comprises a front axle bracket, two shock absorbers, two leaf springs, a steering tie rod, a left drive half shaft, a right drive half shaft, a left steering knuckle, a right steering knuckle, a left front wheel hub unit, and a right front wheel hub unit, wherein the front axle bracket comprises a front axle tube beam, a left mounting seat and a right mounting seat arranged opposite to each other, the two ends of the front axle tube beam are respectively connected to the left mounting seat and the right mounting seat, the two leaf springs are respectively arranged on the left mounting seat and the right mounting seat; the lower ends of the two shock absorbers are respectively connected to the left mounting seat and the right mounting seat, the upper ends of the two shock absorbers are respectively connected to the two sides of the front part of the frame, and the front part of the frame is provided with a motor drive assembly; the left front wheel The wheel hub unit is arranged on the outside of the left steering knuckle, and the left steering knuckle is rotatably arranged on the outside of the left mounting seat; the right front wheel hub unit is arranged on the outside of the right steering knuckle, and the right steering knuckle is rotatably arranged on the outside of the right mounting seat; the left end of the left drive half shaft passes through the through hole on the left mounting seat and is rotatably connected to the left front wheel hub unit, and the right end of the right drive half shaft passes through the through hole on the right mounting seat and is rotatably connected to the right front wheel hub unit; one end of the steering tie rod is connected to the left steering knuckle, and the other end of the steering tie rod is connected to the right steering knuckle, and the differential of the motor drive assembly is respectively connected to the right end of the left drive half shaft and the left end of the right drive half shaft.

[0006] Preferably, the right mounting seat includes a base plate, a first connecting plate, and a first mounting plate for connecting to the leaf spring, the lower end of the first connecting plate is vertically connected to the front top surface of the base plate, one end of the first mounting plate is vertically connected to the upper end of the first connecting plate, the first mounting plate, the first connecting plate and the front top surface of the base plate together constitute a U-shaped structure with an opening facing the inside of the vehicle, and the through hole on the right mounting seat is located on the first connecting plate.

[0007] Preferably, it further comprises a second mounting plate for connecting to one end of the front axle tube beam, wherein the lower end of the second mounting plate is vertically connected to the rear top surface of the base plate.

[0008] Preferably, it also includes a second connecting plate, the front end of the second connecting plate is connected to the first connecting plate, the rear end of the second connecting plate is connected to the second mounting plate, and the lower end of the second connecting plate is vertically connected to the middle top surface of the base plate.

[0009] Preferably, it further comprises a mounting post for connecting to the vibration absorber, wherein the mounting post is vertically connected to the inner side surface of the base plate.

[0010] Preferably, it also includes a reinforcing plate, one end of which is connected to the inner side surface of the first connecting plate, and the other end of which is connected to the front top surface of the base plate; two connecting columns are also arranged relatively between the first mounting plate and the front top surface of the base plate.

[0011] Preferably, it also includes a first connecting arm and a second connecting arm extending toward the outside of the vehicle respectively, one end of the first connecting arm is arranged on the first mounting plate, and the other end of the first connecting arm is provided with a first connecting hole for rotationally connecting to the right steering knuckle; one end of the second connecting arm is arranged on the front outer side surface of the base plate, and the other end of the second connecting arm is provided with a second connecting hole for rotationally connecting to the right steering knuckle, and the second connecting hole is arranged opposite to the first connecting hole.

[0012] Preferably, the right steering knuckle includes a fixing plate, a third connecting arm and a fourth connecting arm relatively arranged on the inner side of the fixing plate, and a fifth connecting arm for connecting to the steering tie rod, the fifth connecting arm is connected to the front side of the fixing plate, the right front wheel hub unit is connected to the fixing plate, and the fixing plate is provided with a fixing hole for the connecting portion of the right front wheel hub unit to pass through; a third connecting hole is provided on the third connecting arm, and a first rotating shaft for rotatably connecting to the first connecting hole is provided in the third connecting hole, and a fourth connecting hole is provided on the fourth connecting arm, and the fourth connecting hole is rotatably connected to the second connecting hole through a second rotating shaft.

[0013] Preferably, four bolt holes are evenly distributed on the circumference of the fixing hole, and the right front wheel hub unit is provided with four fastening bolts for matching with the four bolt holes in a one-to-one correspondence.

[0014] Preferably, the left mounting seat and the right mounting seat have the same structure, the left steering knuckle and the right steering knuckle have the same structure, and the left front wheel hub unit and the right front wheel hub unit have the same structure.

[0015] The beneficial effects of the present invention are:

[0016] The electric vehicle non-independent suspension assembly of the present invention has a motor drive assembly arranged at the front of the vehicle frame rather than directly on the front axle bracket, so that vibrations on the road surface cannot be directly transmitted to the motor. Instead, the vibrations need to be damped by two leaf springs and two shock absorbers before being transmitted to the motor via the vehicle frame. The vibration damping effect of the two leaf springs and two shock absorbers is utilized to reduce the vibrations when transmitted to the motor, thereby effectively reducing the failure rate of the motor. At the same time, since the motor drive assembly is arranged on the vehicle frame, the unsprung mass of the vehicle is not increased, thereby improving the smoothness of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments, and further describe the specific embodiments of the present invention in detail with reference to the drawings.

[0018] Figure 1 A schematic diagram of a non-independent suspension assembly for an electric vehicle provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of a right mounting base provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of a front axle bracket provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the connection between the right mounting base and the right steering knuckle provided by an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of a right steering knuckle provided in an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of the connection between the right steering knuckle, the right mounting seat, and the right front wheel hub unit provided by an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of a right front wheel hub unit provided by an embodiment of the present invention;

[0025] Figure 8 A schematic diagram of the motor drive assembly provided by an embodiment of the present invention connected to the left drive half-shaft and the right drive half-shaft;

[0026] Figure 9 A bottom view of the motor drive assembly provided by an embodiment of the present invention connected to the left and right drive half shafts.

[0027] In the accompanying drawings:

[0028] 11. Leaf spring, 12. Shock absorber, 13. Riding bolt; 21. Right mounting seat,

[0029] 22. Bottom plate, 23. First connecting plate, 231. Via hole, 232. First connecting arm,

[0030] 233, first connecting hole, 234, second connecting arm, 235, second connecting hole,

[0031] 24. First mounting plate, 241. First through hole, 25. Second mounting plate, 251. Second through hole,

[0032] 26. Second connecting plate, 27. Mounting column, 28. Connecting column, 29. Reinforcement plate;

[0033] 31. Left mounting seat, 41. Front axle beam, 51. Left drive axle shaft, 52. Left steering knuckle,

[0034] 53, left front wheel hub unit, 61, right drive axle shaft, 62, right steering knuckle,

[0035] 621, fixing plate, 622, fixing hole, 623, bolt hole, 624, third connecting arm,

[0036] 625, third connecting hole, 626, fourth connecting arm, 627, fourth connecting hole,

[0037] 628, fifth connecting arm, 629, fifth connecting hole, 63, right front wheel hub unit,

[0038] 631, connection part, 632, fastening bolt, 633, hub bolt,

[0039] 71. First rotating shaft, 72. Second rotating shaft, 81. Motor drive assembly. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solution of the present invention, the solution will be further described in detail below in conjunction with specific embodiments.

[0041] like Figures 1 to 9As shown, an embodiment of the present invention provides a non-independent suspension assembly of an electric vehicle, which includes a front axle bracket, two shock absorbers 12, two leaf springs 11, a steering tie rod, a left drive half shaft 51, a right drive half shaft 61, a left steering knuckle 52, a right steering knuckle 62, a left front wheel hub unit 53, and a right front wheel hub unit 63. The front axle bracket includes a front axle tube beam 41, a left mounting seat 31 and a right mounting seat 21 that are arranged opposite to each other, the two ends of the front axle tube beam 41 are respectively connected to the left mounting seat 31 and the right mounting seat 21, and the two leaf springs 11 are respectively arranged on the left mounting seat and the right mounting seat; the lower ends of the two shock absorbers 12 are respectively connected to the left mounting seat and the right mounting seat, and the upper ends of the two shock absorbers are respectively connected to the two sides of the front part of the frame, and the front part of the frame is provided with a motor. Drive assembly 81; the left front wheel hub unit 53 is arranged on the outside of the left steering knuckle, and the left steering knuckle is rotatably arranged on the outside of the left mounting seat; the right front wheel hub unit 63 is arranged on the outside of the right steering knuckle 62, and the right steering knuckle 62 is rotatably arranged on the outside of the right mounting seat 21; the left end of the left drive half shaft 51 passes through the through hole on the left mounting seat and is rotatably connected to the left front wheel hub unit 53, and the right end of the right drive half shaft 61 passes through the through hole on the right mounting seat and is rotatably connected to the right front wheel hub unit 63; one end of the steering tie rod is connected to the left steering knuckle 52, and the other end of the steering tie rod is connected to the right steering knuckle 62, and the differential of the motor drive assembly is respectively connected to the right end of the left drive half shaft and the left end of the right drive half shaft.

[0042] In the non-independent suspension assembly of an electric vehicle provided by an embodiment of the present invention, the motor drive assembly 81 is arranged at the front part of the vehicle frame, rather than being directly arranged on the front axle bracket. Therefore, the vibration on the road surface cannot be directly transmitted to the motor in the motor drive assembly, but needs to be transmitted to the motor through the frame after being damped by two leaf springs 11 and two shock absorbers 12. The vibration is thus reduced when transmitted to the motor by utilizing the damping effect of the two leaf springs and two shock absorbers, thereby effectively reducing the failure rate of the motor. At the same time, since the motor drive assembly is arranged on the vehicle frame, it does not increase the unsprung mass of the vehicle, thereby improving the smoothness of the vehicle.

[0043] Furthermore, the right mounting base 21 includes a base plate 22, a first connecting plate 23, and a first mounting plate 24 for connecting to the leaf spring. The lower end of the first connecting plate is vertically connected to the front top surface of the base plate, and one end of the first mounting plate is vertically connected to the upper end of the first connecting plate. The first mounting plate, the first connecting plate, and the front top surface of the base plate together form a U-shaped structure with an opening facing the interior of the vehicle. The through hole 231 on the right mounting base is located on the first connecting plate 23. This solution utilizes the first mounting plate to achieve connection to the leaf spring, while also making the right mounting base lighter.

[0044] Preferably, the first mounting plate 24 and the leaf spring can be connected via two sets of saddle bolt and nut assemblies. Specifically, the first mounting plate can be provided with four first through-holes 241, which are arranged in a rectangular configuration on the first mounting plate. The middle portions of the two saddle bolts respectively span the middle portion of the leaf spring, and the ends of the two saddle bolts 13 respectively pass through the two first through-holes and engage with the nut threads. It is understood that the leaf spring is arranged longitudinally, i.e., parallel to the length of the vehicle.

[0045] Furthermore, the right mounting seat 21 also includes a second mounting plate 25 for connecting to one end of the front axle tube beam 41, and the lower end of the second mounting plate 25 is vertically connected to the rear top surface of the base plate 22, thereby realizing connection with the front axle tube beam through the second mounting plate.

[0046] Specifically, the front axle tube beam 41 is detachably connected to the second mounting plate 25, thereby facilitating replacement or repair of the front axle tube beam and the right mounting seat. Preferably, the front axle tube beam and the second mounting plate can be connected by multiple pairs of locking bolt and nut assemblies, and the second mounting plate is provided with multiple second through holes 251 for the locking bolts to pass through.

[0047] Furthermore, the right mounting seat 21 also includes a second connecting plate 26, the front end of the second connecting plate 26 is connected to the first connecting plate, the rear end of the second connecting plate is connected to the second mounting plate, and the lower end of the second connecting plate is vertically connected to the middle top surface of the bottom plate, so that the second connecting plate is used to realize the connection between the first connecting plate and the second mounting plate, thereby improving the overall strength of the right mounting seat and making the right mounting seat less prone to damage.

[0048] Preferably, the first connecting plate, the first mounting plate, the second connecting plate, and the second mounting plate are all rectangular plates.

[0049] Furthermore, the right mounting seat 21 also includes a mounting post 27 for connecting to the shock absorber. The mounting post 27 is vertically connected to the inner side surface of the base plate 22, so that the shock absorber can be easily connected to the right mounting seat by using the mounting post.

[0050] Specifically, the mounting post 27 and the base plate may be threadedly connected; the mounting post may preferably be a tubular structure, thereby reducing the weight of the mounting post.

[0051] Furthermore, the right mounting base 21 includes a reinforcing plate 29, one end of which is connected to the inner side of the first connecting plate 23, and the other end of which is connected to the front top surface of the bottom plate, thereby ensuring a strong and reliable connection between the first connecting plate and the bottom plate. Furthermore, two connecting posts 28 are positioned opposite each other between the first mounting plate and the front top surface of the bottom plate, making the U-shaped structure more stable and reliable, and preventing the connection between the first mounting plate and the first connecting plate from breaking.

[0052] Specifically, the upper end of the connecting post 28 is vertically connected to the first mounting plate, and the lower end of the connecting post 28 is vertically connected to the front top surface of the bottom plate.

[0053] Furthermore, the right mounting base 21 also includes a first connecting arm 232 and a second connecting arm 234, each extending toward the outside of the vehicle. One end of the first connecting arm is disposed on the first mounting plate 24, and the other end of the first connecting arm is provided with a first connecting hole 233 for rotationally connecting to the right steering knuckle. One end of the second connecting arm is disposed on the front outer surface of the base plate 22, and the other end of the second connecting arm is provided with a second connecting hole 235 for rotationally connecting to the right steering knuckle. The second connecting hole is disposed opposite the first connecting hole. This solution allows the right mounting base to conveniently achieve rotational connection with the right steering knuckle via the first connecting arm 232 and the second connecting arm 234.

[0054] Preferably, the first connecting arm and the second connecting arm are both triangular plate structures, and the first connecting hole and the second connecting hole are respectively located at the tip ends of the first connecting arm and the second connecting arm; the end of the first connecting arm away from its tip end is connected to the top surface of the first mounting plate, and the tip end of the first connecting arm is bent outward; the second connecting arm is vertically arranged on the front outer side of the base plate, so that the structure of the first connecting arm and the second connecting arm is relatively simple, and the installation space between the first connecting arm and the second connecting arm is larger, which is convenient for the installation of the right steering knuckle.

[0055] Furthermore, the right steering knuckle 62 includes a fixing plate 621, a third connecting arm 624 and a fourth connecting arm 626 disposed relative to the inner side of the fixing plate, and a fifth connecting arm 628 for connecting to the tie rod. The fifth connecting arm is connected to the front side of the fixing plate, to which the right front wheel hub unit is connected. The fixing plate is provided with a fixing hole 622 through which the connecting portion 631 of the right front wheel hub unit passes. The third connecting arm is provided with a third connecting hole 625, in which a first rotating shaft 71 is provided for rotationally connecting to the first connecting hole. The fourth connecting arm is provided with a fourth connecting hole 627, which is rotationally connected to the second connecting hole via a second rotating shaft 72. This solution simplifies the structure of the right steering knuckle. The fixing plate secures the right front wheel hub unit, the fifth connecting arm connects to the tie rod, and the third and fourth connecting arms are rotationally connected to the first and second connecting arms via the first and second rotating shafts, respectively.

[0056] It can be understood that the first rotating shaft 71 and the second rotating shaft 72 are coaxial, and the steering tie rod can be used to pull the right steering knuckle to rotate around the axis of the first rotating shaft and the second rotating shaft, and the first rotating shaft is parallel to the first connecting plate; the steering tie rod can be rotatably connected to the fifth connecting hole 629 of the fifth connecting arm 628 through the third rotating shaft, and the third rotating shaft is parallel to the first rotating shaft; after the right end of the right driving half shaft passes through the through hole on the first connecting plate, it is rotatably connected to the connecting part of the right front wheel hub unit, and the right driving half shaft can rotate in the through hole; the driving half shaft and the hub unit are commonly used components in the prior art, and the structure of the driving half shaft and the hub unit and the specific connection structure between the driving half shaft and the hub unit are the same as those in the prior art, and will not be repeated here.

[0057] Preferably, four bolt holes 623 are evenly distributed on the circumference of the fixing hole 622, and four fastening bolts 632 are provided on the inner side of the right front wheel hub unit 63 for matching with the four bolt holes in a one-to-one manner. Figures 5 to 7 As shown, the right front wheel hub unit is connected to the right steering knuckle via four fastening bolts, thereby making the connection between the right front wheel hub unit and the right steering knuckle relatively firm and reliable. It is understood that the outer side of the right front wheel hub unit is used to connect to the right front wheel. Specifically, six hub bolts 633 for connecting to the tire rim of the right front wheel can be evenly arranged along the circumference of the outer side of the right front wheel hub unit.

[0058] Specifically, the left mounting seat and the right mounting seat have the same structure, the left steering knuckle and the right steering knuckle have the same structure, and the left front wheel hub unit and the right front wheel hub unit have the same structure.

[0059] It can be understood that the specific structure of the leaf spring, shock absorber and steering tie rod is the same as that in the prior art; the steering function of the vehicle can be achieved by using the steering tie rod to pull the left and right steering knuckles to rotate; the motor drive assembly includes a motor, a controller, and a main reducer. The motor transmits power to the main reducer, and the main reducer transmits power to the differential inside it. The differential transmits power to the left and right drive half shafts respectively. The left and right drive half shafts respectively drive the left and right front wheel hub units, and the left and right front wheel hub units respectively drive the left front wheel and right front wheel to rotate.

[0060] The present invention arranges the motor drive assembly at the front of the frame, above the front axle, and uses the motor drive assembly to drive the left front wheel and the right front wheel, that is, front-mounted front-wheel drive is realized. Due to the large space between the front and rear axles, the power battery can be flexibly arranged on the left and right longitudinal beams of the frame between the front and rear axles or between the left and right longitudinal beams. At the same time, under the premise that other components do not change, power batteries of different capacities can be arranged according to mileage requirements to better meet different usage requirements; and the oversteering problem of rear-wheel drive vehicles is avoided; and because the motor drive assembly is arranged on the frame instead of being hard-connected to the front axle, the vibration impact on the motor and the reducer is small, the failure rate of the motor and the reducer is low, and the unsprung mass of the leaf spring is not increased, thereby not reducing the smoothness of the vehicle; and the front and rear suspensions of the vehicle can both adopt leaf spring non-independent suspension, so that the vehicle has better load-bearing performance.

[0061] The above are only preferred embodiments of the present invention. It should be pointed out that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. Moreover, after reading the contents of the present invention, relevant technical personnel in this field can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A non-independent suspension assembly for an electric vehicle, characterized in that: It includes a front axle bracket, two shock absorbers, two leaf springs, a steering tie rod, a left drive half shaft, a right drive half shaft, a left steering knuckle, a right steering knuckle, a left front wheel hub unit, and a right front wheel hub unit. The front axle bracket includes a front axle tube beam, a left mounting seat and a right mounting seat arranged opposite to each other, the two ends of the front axle tube beam are respectively connected to the left mounting seat and the right mounting seat, the two leaf springs are respectively arranged on the left mounting seat and the right mounting seat; the lower ends of the two shock absorbers are respectively connected to the left mounting seat and the right mounting seat, the upper ends of the two shock absorbers are respectively connected to the two sides of the front part of the frame, and the front part of the frame is provided with a motor drive assembly; the left front wheel hub unit is arranged on The outer side of the left steering knuckle, the left steering knuckle is rotatably arranged on the outer side of the left mounting seat; the right front wheel hub unit is arranged on the outer side of the right steering knuckle, and the right steering knuckle is rotatably arranged on the outer side of the right mounting seat; the left end of the left drive half shaft passes through the through hole on the left mounting seat and is rotatably connected to the left front wheel hub unit, and the right end of the right drive half shaft passes through the through hole on the right mounting seat and is rotatably connected to the right front wheel hub unit; one end of the steering tie rod is connected to the left steering knuckle, and the other end of the steering tie rod is connected to the right steering knuckle, and the differential of the motor drive assembly is respectively connected to the right end of the left drive half shaft and the left end of the right drive half shaft; The right mounting seat includes a bottom plate, a first connecting plate, and a first mounting plate for connecting to the leaf spring, wherein the lower end of the first connecting plate is vertically connected to the front top surface of the bottom plate, and one end of the first mounting plate is vertically connected to the upper end of the first connecting plate. The first mounting plate, the first connecting plate, and the front top surface of the bottom plate together form a U-shaped structure with an opening facing the inside of the vehicle, and the through hole on the right mounting seat is located on the first connecting plate; It also includes a second mounting plate for connecting to one end of the front axle tube beam, wherein the lower end of the second mounting plate is vertically connected to the rear top surface of the bottom plate; It also includes a second connecting plate, the front end of the second connecting plate is connected to the first connecting plate, the rear end of the second connecting plate is connected to the second mounting plate, and the lower end of the second connecting plate is vertically connected to the middle top surface of the bottom plate; It also includes a mounting post for connecting to the vibration absorber, wherein the mounting post is vertically connected to the inner side surface of the base plate; It also includes a first connecting arm and a second connecting arm extending toward the outside of the vehicle respectively, one end of the first connecting arm is arranged on the first mounting plate, and the other end of the first connecting arm is provided with a first connecting hole for rotationally connecting to the right steering knuckle; one end of the second connecting arm is arranged on the front outer side surface of the base plate, and the other end of the second connecting arm is provided with a second connecting hole for rotationally connecting to the right steering knuckle, and the second connecting hole is arranged opposite to the first connecting hole.

2. The electric vehicle non-independent suspension assembly according to claim 1, characterized in that: It also includes a reinforcing plate, one end of which is connected to the inner side of the first connecting plate, and the other end of which is connected to the front top surface of the base plate; two connecting columns are also arranged relatively between the first mounting plate and the front top surface of the base plate.

3. The electric vehicle non-independent suspension assembly according to claim 1, characterized in that: The right steering knuckle includes a fixed plate, a third connecting arm and a fourth connecting arm relatively arranged on the inner side of the fixed plate, and a fifth connecting arm for connecting to the steering tie rod, the fifth connecting arm is connected to the front side of the fixed plate, the right front wheel hub unit is connected to the fixed plate, and the fixed plate is provided with a fixing hole for the connecting part of the right front wheel hub unit to pass through; the third connecting arm is provided with a third connecting hole, and the third connecting hole is provided with a first rotating shaft for rotatably connecting to the first connecting hole, and the fourth connecting arm is provided with a fourth connecting hole, and the fourth connecting hole is rotatably connected to the second connecting hole through a second rotating shaft.

4. The electric vehicle non-independent suspension assembly according to claim 3, characterized in that: Four bolt holes are evenly distributed in the circumferential direction of the fixing hole, and the right front wheel hub unit is provided with four fastening bolts for matching with the four bolt holes in a one-to-one correspondence.

5. The electric vehicle non-independent suspension assembly according to claim 1, characterized in that: The left mounting seat and the right mounting seat have the same structure, the left steering knuckle and the right steering knuckle have the same structure, and the left front wheel hub unit and the right front wheel hub unit have the same structure.

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