Lower control arm assembly, suspension system and vehicle

Abstract

The utility model discloses a lower control arm assembly, a suspension system and a vehicle. The lower control arm assembly comprises a lower control arm body, the lower control arm body comprises a main body part, a first connecting part and a second connecting part, the first connecting part is used for being connected with a steering knuckle, and the second connecting part is used for being connected with a vehicle body; the upper surface of the main body part is provided with a groove which is recessed downwards. According to the lower control arm assembly provided by the embodiment of the utility model, the problem that the space from a rim to a vehicle body is reduced when a wheel turns can be ingeniously solved, so that more space can be obtained, and a wheel assembly can obtain a larger wheel turning angle; and the vehicle can turn around in situ or other working conditions requiring larger wheel turning angles can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a lower control arm component, a suspension system and a vehicle. Background Art

[0002] The lower control arm in the related technology is roughly in the shape of a straight line, and the wheel rim is integrated with many electrical components, which will occupy a large space of the wheel, resulting in a reduction in the space reserved for the suspension, and cannot meet the high requirements of wheel steering and tire up and down jumping. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a lower control arm assembly, which can improve space utilization and facilitate the vehicle to achieve a U-turn on the spot or other working conditions requiring a larger wheel turning angle.

[0004] The utility model also provides a suspension system with the lower control arm assembly.

[0005] The utility model also provides a vehicle with the suspension system.

[0006] According to the lower control arm assembly of the first aspect embodiment of the utility model, it includes: a lower control arm body, the lower control arm body includes a main body, a first connecting part and a second connecting part, the main body is connected between the first connecting part and the second connecting part, the first connecting part is used to connect to the steering knuckle, and the second connecting part is used to connect to the vehicle body; wherein the upper surface of the main body has a groove that is recessed downward.

[0007] According to the lower control arm assembly of the embodiment of the utility model, compared with the linear lower control arm assembly in the related art, a groove is set on the upper surface of the main body of the lower control arm body, which can cleverly avoid the problem of reduced space from the rim to the body caused by wheel turning, thereby obtaining more space, for example, the EMB braking system or other components can obtain more space, and the components on the vehicle's wheel assembly can avoid the lower control arm assembly during turning and up and down jumping, thereby improving the utilization rate of the wheel space, so that the wheel assembly can obtain a larger wheel turning angle, which is beneficial for the vehicle to achieve an on-the-spot U-turn or other working conditions requiring a larger wheel turning angle.

[0008] According to some embodiments of the present invention, at least a portion of the main body is bent downward to form the groove on the upper surface of the main body.

[0009] According to some embodiments of the present utility model, the lower control arm assembly further includes: a shock absorber mounting portion, the shock absorber mounting portion is disposed in the groove and connected to the main body, and the shock absorber mounting portion is used to mount a shock absorber.

[0010] In some embodiments, the main body includes a first extension segment, a second extension segment and a third extension segment arranged in a first direction, the second extension segment is connected between the first extension segment and the third extension segment, the first extension segment is connected between the second extension segment and the first connecting portion, and the third extension segment is connected between the second extension segment and the second connecting portion; wherein the groove is defined between the first extension segment and the second extension segment and the third extension segment, the second extension segment forms the bottom wall of the groove, and the shock absorber mounting portion is connected to at least the first extension segment and the second extension segment.

[0011] In some examples, during the movement of the shock absorber, the central axis of the shock absorber passes through a connection position between the first extension segment and the second extension segment.

[0012] In some examples, the first extension segment and the third extension segment extend obliquely in a direction away from each other.

[0013] In some examples, a side of the shock absorber mounting portion away from the second extension section is flush with the first connecting portion.

[0014] In some embodiments, the shock absorber mounting portion includes a first mounting lug and a second mounting lug that are arranged opposite to each other in a second direction, and the shock absorber portion is arranged between the first mounting lug and the second mounting lug.

[0015] According to some embodiments of the utility model, the main body is provided with a weight-reducing portion, and the weight-reducing portion includes a weight-reducing through hole and / or a weight-reducing groove, and the weight-reducing portion is located on the bottom wall of the groove and / or the side wall of the groove.

[0016] In some embodiments, the weight-reducing portion includes a weight-reducing groove, and the weight-reducing groove is located on the lower surface of the main body; and / or the weight-reducing groove is located at a position of the main body close to the second connecting portion.

[0017] According to some embodiments of the present invention, in a plane perpendicular to the third direction, the projections of the first connecting portion and the main body portion are combined to form a triangle.

[0018] According to some embodiments of the present invention, the second connection parts include two, the two second connection parts are arranged in the second direction, and the main body and the two second connection parts define an avoidance gap.

[0019] According to some embodiments of the present invention, the first connecting part is used to install a ball joint, the first connecting part is connected to the steering knuckle through the ball joint, and the second connecting part has a receiving hole for installing a bushing, and the second connecting part is connected to the vehicle body through the bushing.

[0020] A suspension system according to an embodiment of the second aspect of the utility model comprises a lower control arm assembly according to the above embodiment.

[0021] According to the suspension system of the embodiment of the utility model, by adopting the above-mentioned lower control arm assembly, the reasonable arrangement of the various components of the suspension system and the wheel assembly can be achieved, which is beneficial to improving the space utilization, so that the wheel assembly can obtain a larger wheel turning angle, which is beneficial for the vehicle to achieve on-the-spot U-turn or other working conditions that require a larger wheel turning angle.

[0022] A vehicle according to an embodiment of the third aspect of the utility model comprises a suspension system according to the above embodiment.

[0023] According to the vehicle of the embodiment of the utility model, by adopting the above suspension system, the vehicle can realize an on-the-spot U-turn or other working conditions requiring a larger wheel turning angle.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is a perspective view of a lower control arm assembly according to an embodiment of the utility model;

[0027] Figure 2 yes Figure 1 a side view of a lower control arm assembly shown in;

[0028] Figure 3 yes Figure 1 A bottom view of the lower control arm assembly shown in ;

[0029] Figure 4 is a component assembly diagram of a suspension system according to an embodiment of the utility model;

[0030] Figure 5 is a structural block diagram of a suspension system according to an embodiment of the utility model;

[0031] Figure 6 It is a simplified structural diagram of a vehicle according to an embodiment of the utility model.

[0032] Reference numerals:

[0033] Lower control arm assembly 100,

[0034] The lower control arm body 10 avoids the notch 103,

[0035] The main body 11, the groove 1103, the weight-reducing through hole 1104, the weight-reducing groove 1105, the first extension section 111, the second extension section 112, the third extension section 113,

[0036] The first connecting portion 12, the second connecting portion 13, the receiving hole 130,

[0037] Shock absorber mounting portion 20, first mounting lug 21, second mounting lug 22, mounting hole 23,

[0038] Ball joint 30, support 31, ball head rod 32, bushing 40,

[0039] Suspension system 500 , shock absorber 51 , upper control arm assembly 52 , brake angle assembly 53 , steering knuckle 531 , and vehicle 600 . DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] Reference below Figure 1-Figure 4 A lower control arm assembly 100 according to an embodiment of the present invention is described.

[0042] like Figure 1-Figure 3 As shown, a lower control arm assembly 100 according to an embodiment of the present invention includes a lower control arm body 10 .

[0043] The lower control arm body 10 includes a main body 11, a first connection portion 12, and a second connection portion 13. The main body 11 is connected between the first connection portion 12 and the second connection portion 13. Specifically, the main body 11, the first connection portion 12, and the second connection portion 13 can be connected in a first direction (such as Figure 1-Figure 3 The first direction may be the width direction of the vehicle 600.

[0044] like Figure 4 As shown, the first connection portion 12 is used to connect with the steering knuckle 531, so that the steering knuckle 531 can move relative to the lower control arm body 10. The second connection portion 13 is used to connect with the vehicle body, so that the lower control arm body 10 can be installed on the vehicle body.

[0045] The main body 11 is in a U-shaped structure and is formed with a groove 1103. That is, the groove 1103 is located between the first connection part 12 and the second connection part 13.

[0046] According to the lower control arm assembly 100 of the embodiment of the utility model, compared with the linear lower control arm assembly 100 in the related art, a groove 1103 is provided on the upper surface of the main body 11 of the lower control arm body 10, so that the problem of reduced space from the rim to the vehicle body caused by wheel turning can be avoided, thereby obtaining more space, for example, more space can be obtained for the EMB braking system or other components, and the components on the wheel assembly of the vehicle 600 can avoid the lower control arm assembly 100 during turning and up and down jumping, so that the wheel assembly can obtain a larger wheel turning angle and improve space utilization.

[0047] Therefore, the lower control arm assembly 100 of the present invention is helpful for the vehicle 600 to achieve an on-the-spot U-turn or other working conditions requiring a larger wheel turning angle.

[0048] like Figure 2 As shown, according to some embodiments of the present invention, at least a portion of the main body 11 is bent downward, that is, the main body 11 can form a downward bent structure, so that a groove 1103 can be formed on the upper surface of the main body 11.

[0049] With such a configuration, there is no need for grooving, which not only simplifies the processing technology of the lower control arm body 10 and helps improve production efficiency, but also improves the structural strength of the lower control arm body 10 , thereby improving the reliability of the lower control arm assembly 100 .

[0050] In order to ensure the structural integrity and structural strength of the lower control arm body 10 , the main body 11 , the first connecting portion 12 and the second connecting portion 13 are integrally formed, that is, the lower control arm body 10 is an integrally formed part.

[0051] like Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the lower control arm assembly 100 further includes a shock absorber mounting portion 20 , which is disposed in the groove 1103 and connected to the main body 11 , and is used to mount the shock absorber 51 .

[0052] Therefore, by arranging the shock absorber mounting portion 20 in the groove 1103, on the one hand, the space utilization rate of the groove 1103 can be improved, so that the components of the suspension system 500 can be arranged more compactly; on the other hand, the length of the shock absorber 51 can be increased in a limited space, which is beneficial to the arrangement of the shock absorber 51 and further improves the shock absorption performance of the vehicle 600.

[0053] like Figure 1 and Figure 2 As shown, in some embodiments, the main body 11 includes a first extension segment 111, a second extension segment 112 and a third extension segment 113, the first extension segment 111, the second extension segment 112 and the third extension segment 113 are arranged in a first direction, and the second extension segment 112 is connected between the first extension segment 111 and the third extension segment 113.

[0054] Furthermore, the first extension section 111 is connected between the second extension section 112 and the first connecting portion 12, and the third extension section 113 is connected between the second extension section 112 and the second connecting portion 13, that is, the first extension section 111 is closer to the first connecting portion 12 than the second extension section 112, and the third extension section 113 is closer to the second connecting portion 13 than the second extension section 112.

[0055] That is, the first connection portion 12 , the first extension section 111 , the second extension section 112 , the third extension section 113 and the third connection portion 13 are arranged in sequence in a first direction (eg, a width direction of the vehicle 600 ).

[0056] Among them, a groove 1103 is defined between the first extension section 111 and the second extension section 112 and the third extension section 113, the second extension section 112 forms the bottom wall of the groove 1103, and the shock absorber mounting part 20 is connected to at least the first extension section 113 and the second extension section 112, that is, the first extension section 111 and the second extension section 112 are connected to different sides of the shock absorber mounting part 20.

[0057] Compared with the technical solution in the related art that the shock absorber mounting part is installed on a plane structure, the utility model arranges the shock absorber mounting part 20 in the groove 1103 and connects the shock absorber mounting part 20 with the first extension section 111 and the second extension section 112. On the one hand, the connection area between the shock absorber mounting part 20 and the lower control arm body 10 can be increased, and on the other hand, the shock absorber mounting part 20 can be connected to the lower control arm body 10 from different directions, thereby effectively improving the connection strength between the shock absorber mounting part 20 and the lower control arm body 10, thereby improving the installation reliability and use reliability of the shock absorber 51.

[0058] The shock absorber mounting portion 20 may be connected to the first extension section 111 and the second extension section 112 by welding. Of course, the shock absorber mounting portion 20 may also be connected to the first extension section 111 and the second extension section 112 by other methods, which are not limited here.

[0059] like Figure 2 and Figure 4As shown, in some examples, during the movement of the shock absorber 51, the central axis of the shock absorber 51 passes through the connection position of the first extension section 111 and the second extension section 112. For example, when the vehicle 600 is fully loaded, the movement trajectory of the central axis of the shock absorber 51 passes through the corner of the L-shaped structure formed by the combination of the first extension section 111 and the second extension section 112.

[0060] Such a configuration can further increase the structural strength of the lower control arm body 10 and improve the lever ratio of the suspension system 500 , making it easier to design the parameters of the suspension system 500 and reducing the cost of parameter design of the suspension system 500 .

[0061] like Figure 2 As shown, in some examples, the first extension segment 111 and the third extension segment 113 extend obliquely in a direction away from each other.

[0062] That is to say, one end of the first extension segment 111 is connected to one end of the second extension segment 112, and the other end of the first extension segment 111 extends obliquely in a direction away from the third extension segment 113, one end of the third extension segment 113 is connected to the other end of the second extension segment 112, and the other end of the third extension segment 113 extends obliquely in a direction away from the first extension segment 111, so that the cross-section of the groove 1103 gradually expands from bottom to top.

[0063] In the above technical solution, by limiting the first extension section 111 and the third extension section 113 to extend obliquely away from each other, the cross-section of the groove 1103 is gradually expanded from bottom to top, so that the EMB braking system or other components can obtain more layout space in the first direction, and the shock absorber 51 and the parts on the wheel assembly can better avoid the first extension section 111 and the third extension section 113 during the turning and up and down jumping process, so that the wheel assembly can further obtain a larger wheel turning angle and improve space utilization.

[0064] In some specific examples, the angle between the planes where the first extension section 111 and the second extension section 112 are located is greater than the angle between the planes where the third extension section 113 and the second extension section 112 are located.

[0065] It should be noted that the specific structure of the main body 11, that is, the extension lengths and extension directions of the first extension segment 111, the second extension segment 112 and the third extension segment 113, can be designed according to actual conditions. For example, the movement space of other components near the main body 11 can be obtained through motion simulation analysis, so that the first extension segment 111, the second extension segment 112 and the third extension segment 113 can be arranged and controlled, so that the main body 11 can avoid nearby components.

[0066] like Figure 2As shown, in some examples, the side of the shock absorber mounting portion 20 away from the second extension section 112 is flush with the first connection portion 12. This arrangement can prevent the shock absorber mounting portion 20 from protruding from the first connection portion 12, so that the components on the wheel assembly can avoid the shock absorber mounting portion 20 during turning and up and down jumping.

[0067] Of course, the side of the shock absorber mounting portion 20 away from the second extension section 112 may also be lower than the first connecting portion 12, or the side of the shock absorber mounting portion 20 away from the second extension section 112 may be higher than the first connecting portion 12, which can be selected according to actual conditions.

[0068] like Figure 1 As shown, in some embodiments, the shock absorber mounting portion 20 includes a first mounting lug 21 and a second mounting lug 22, and the first mounting lug 21 and the second mounting lug 22 are arranged in a second direction (eg Figure 1 The second direction may be perpendicular to the first direction, for example, the second direction may be the length direction of the vehicle 600.

[0069] The shock absorber 51 is partially disposed between the first mounting lug 21 and the second mounting lug 22. Specifically, the shock absorber 51 can be matched with the first mounting lug 21 and the second mounting lug 22 via a connecting shaft (not shown in the figure).

[0070] More specifically, mounting holes 23 are provided on the first mounting lug 21 and the second mounting lug 22, the connecting shaft can extend along the second direction, and the connecting shaft passes through the mounting hole 23 of the first mounting lug 21 and the mounting hole 23 of the second mounting lug 22, and the connecting shaft is also connected to the shock absorber 51, so that the shock absorber 51 can be installed on the shock absorber mounting part 20.

[0071] In the above technical solution, by configuring the shock absorber mounting portion 20 to include a first mounting lug 21 and a second mounting lug 22, the shock absorber 51 can be conveniently mounted on the shock absorber mounting portion 20 using a connecting shaft, which has a simple structure, convenient operation, and is easy to implement.

[0072] like Figure 1 and Figure 3 As shown, in some examples, the main body 11 is provided with a weight-reducing portion, and the weight-reducing portion may include a weight-reducing through hole 1104 and / or a weight-reducing groove 1105. By providing the weight-reducing portion on the main body 11, on the one hand, the weight of the lower control arm body 10 can be reduced, which is conducive to achieving a lightweight design, and on the other hand, the material used in the lower control arm body 10 can be reduced, thereby reducing the production cost.

[0073] In some specific examples, the weight reduction portion is located at the bottom wall of the groove 1103 .

[0074] For example, the weight-reducing portion disposed on the bottom wall of the groove 1103 may be a weight-reducing through hole 1104 , and the weight-reducing through hole 1104 is located between the first mounting lug 21 and the second mounting lug 22 .

[0075] In the above technical solution, by setting the weight-reducing through hole 1104 between the first mounting lug 21 and the second mounting lug 22, on the one hand, the space utilization rate can be improved, and on the other hand, the weight-reducing part can avoid nearby structures on the basis of achieving weight reduction to prevent interference problems.

[0076] In addition, a portion of the shock absorber 51 may be extended into the weight-reducing through hole 1104 , so that the length of the shock absorber 51 can be set longer, which is beneficial to the arrangement of the shock absorber 51 and further improves the shock absorption performance of the vehicle 600 .

[0077] For another example, the weight-reducing portion provided on the bottom wall of the groove 1103 may be a weight-reducing groove 1105. By providing the weight-reducing groove 1105 on the main body 11, on the one hand, the weight of the lower control arm body 10 can be reduced, which is conducive to realizing a lightweight design, and on the other hand, the material used for the lower control arm body 10 can be reduced, thereby reducing the production cost.

[0078] In some other specific examples, the weight reduction portion is located on the side wall of the groove 1103 .

[0079] For example, the weight-reducing portion disposed on the side wall of the groove 1103 may be a weight-reducing through hole 1104 ; for another example, the weight-reducing portion disposed on the side wall of the groove 1103 may be a weight-reducing groove 1105 .

[0080] In the above technical solution, by arranging the weight-reducing portion on the side wall of the groove 1103 , the weight of the lower control arm body 10 can be reduced while ensuring the structural strength of the lower control arm body 10 , which is conducive to achieving a lightweight design.

[0081] In some further specific examples, the weight reduction portion is located on the bottom wall of the groove 1103 and the side wall of the groove 1103 .

[0082] For example, the weight-reducing portion provided on the bottom wall of the groove 1103 and the weight-reducing portion provided on the side wall of the groove 1103 are both weight-reducing through holes 1104; for another example, the weight-reducing portion provided on the bottom wall of the groove 1103 and the weight-reducing portion provided on the side wall of the groove 1103 are both weight-reducing grooves 1105; for another example, the weight-reducing portion provided on the bottom wall of the groove 1103 is the weight-reducing through hole 1104, and the weight-reducing portion provided on the side wall of the groove 1103 is the weight-reducing groove 1105; for another example, the weight-reducing portion provided on the bottom wall of the groove 1103 is the weight-reducing groove 1105, and the weight-reducing portion provided on the side wall of the groove 1103 is the weight-reducing through hole 1104.

[0083] Of course, the number of weight-reducing parts arranged on the bottom wall of the groove 1103 can be one or more. When the number of weight-reducing parts on the bottom wall of the groove 1103 is multiple, the multiple weight-reducing parts can all be weight-reducing through holes 1104, or all be weight-reducing grooves 1105, or one part can be the weight-reducing through holes 1104 and the other part can be the weight-reducing grooves 1105.

[0084] Similarly, the number of weight-reducing parts arranged on the side wall of the groove 1103 may be one or more. When the number of weight-reducing parts on the side wall of the groove 1103 is multiple, the multiple weight-reducing parts may all be weight-reducing through holes 1104, or all be weight-reducing grooves 1105, or one part may be the weight-reducing through hole 1104 and the other part may be the weight-reducing groove 1105.

[0085] like Figure 2 and Figure 3 As shown, in the present embodiment, the main body 11 of the lower control arm body 10 includes a first extension segment 111, a second extension segment 112 and a third extension segment 113 arranged in a first direction, the second extension segment 112 is connected between the first extension segment 111 and the third extension segment 113, the first extension segment 111 is arranged close to the first connecting portion 12, and the second extension segment 112 is arranged close to the second connecting portion 13, and the weight-reducing through hole 1104 can be arranged at the connecting position of the first extension segment 111 and the second extension segment 112, that is, the bottom wall of the groove 1103 is provided with the weight-reducing through hole 1104, the side wall of the groove 1103 is provided with the weight-reducing through hole 1104, and the parts of the two weight-reducing through holes 1104 close to each other are connected to each other.

[0086] Therefore, by setting the weight-reducing part on the bottom wall of the groove 1103 and the side wall of the groove 1103, the material usage of the main body 11 of the lower control arm body 10 can be further reduced, thereby reducing the mass of the main body 11 and reducing the occurrence of resonance, which is beneficial to improving the maneuverability and smoothness of the vehicle and allowing the shock absorber 51 to play a better role.

[0087] like Figure 3 As shown, in some embodiments, the weight reduction portion includes a weight reduction groove 1105 .

[0088] In some specific embodiments, the weight-reducing groove 1105 is located on the lower surface of the main body 11. By providing the weight-reducing groove 1105 on the lower surface of the main body 11, the structural strength of the lower surface of the main body 11 can be improved while ensuring that the mass of the main body 11 is reduced.

[0089] In some specific embodiments, the weight reduction groove 1105 is located at a position of the main body 11 close to the second connection portion 13. By arranging the weight reduction groove 1105 at a position close to the second connection portion 13, the weight reduction groove 1105 is as far away from the shock absorber mounting portion 20 as possible, and the installation reliability of the shock absorber mounting portion 20 on the lower control arm body 10 can be guaranteed on the basis of reducing the material usage and quality of the lower control arm body 10, thereby ensuring the reliability of the use of the shock absorber 51.

[0090] In some specific embodiments, the weight reduction groove 1105 is located on the lower surface of the main body 11 and is close to the second connection portion 13. This arrangement can not only reduce the weight of the lower control arm body 10 and reduce the cost, but also ensure the installation reliability of the shock absorber mounting portion 20 on the lower control arm body 10, thereby ensuring the reliability of the use of the shock absorber 51.

[0091] The location and extension direction of the weight-reducing groove 1105 can be selected according to actual conditions. For example, the weight-reducing groove 1105 can also be set on the upper surface of the main body 11; the weight-reducing groove 1105 can extend along the extension direction of the side edge of the main body 11 toward the direction close to the second connecting portion 13, or the weight-reducing groove 1105 can extend along the second direction, which can be the length direction of the vehicle 600.

[0092] In the embodiment where the weight-reducing groove 1105 extends along the length direction of the vehicle 600 , both ends of the weight-reducing groove 1105 in the length direction may penetrate through the outer surface of the side wall of the lower control arm body 10 .

[0093] Of course, the two ends of the weight reducing groove 1105 in the length direction may not pass through the outer surface of the side wall of the lower control arm body 10, that is, the two ends of the weight reducing groove 1105 in the length direction are closed, which is equivalent to forming reinforcing ribs at the two ends of the weight reducing groove 1105 in the length direction, thereby increasing the strength of the main body 11 in the third direction (Z direction as shown in the figure), which is beneficial to ensure the structural strength of the lower control arm body 10, and further can provide effective support for the shock absorber 51.

[0094] It should be noted that the weight-reducing groove 1105 can be arranged as far away as possible from the installation position of the ball joint 30 on the first connecting portion 12 , so as to avoid weakening the structural strength of this position, which is conducive to ensuring the installation reliability of the ball joint 30 .

[0095] like Figure 3 As shown, according to some embodiments of the present invention, in a plane perpendicular to the third direction, the projections of the first connection portion 12 and the main body portion 11 are combined to form a triangle. The third direction may be perpendicular to the first direction and the second direction. For example, the third direction may be the height direction of the vehicle 600.

[0096] Such arrangement can, on the one hand, make the structure of the lower control arm body 10 more stable, and on the other hand, can reduce the space occupied by the lower control arm body 10 and reduce the probability of interference between the lower control arm body 10 and nearby components.

[0097] like Figure 1 and Figure 3 As shown, according to some embodiments of the present invention, the second connection portion 13 includes two second connection portions 13 , which are arranged in the second direction (eg, the length direction of the vehicle 600 ), and the main body 11 and the two second connection portions 13 define an avoidance gap 103 .

[0098] Specifically, the two second connection parts 13 are located on the same side of the main body 11, and one end of the two second connection parts 13 is connected to the main body 11, and the other end of the two second connection parts 13 is provided with a bushing 40, and the two second connection parts 13 are connected to the main body 11 by an arc transition on one side close to each other, so that the main body 11 and the two second connection parts 13 define a C-shaped avoidance gap 103.

[0099] In the above technical solution, by using the main body 11 and the two second connecting parts 13 to define the avoidance gap 103, on the one hand, the material usage of the lower control arm body 10 can be reduced, thereby reducing the mass of the lower control arm body 10 and reducing the cost of the lower control arm body 10, and on the other hand, effective avoidance can be formed for the structure on the vehicle body. In addition, the occurrence of resonance phenomenon can also be reduced, which is conducive to improving the controllability and ride comfort of the whole vehicle.

[0100] like Figure 4 As shown, according to some embodiments of the present invention, the first connecting portion 12 is used to install the ball joint 30 , and the first connecting portion 12 is connected to the steering knuckle 531 through the ball joint 30 .

[0101] Specifically, Figure 1 and Figure 2 As shown, the ball joint 30 may include a support 31 and a ball head rod 32. The support 31 is fixed on the first connecting portion 12 of the lower control arm body 10. The ball head rod 32 includes a ball head and a connecting rod that are connected as a whole. The ball head rod 32 is movable with the support 31 through the spherical surface of the ball head. The ball head rod 32 is connected to the steering knuckle 531 through the connecting rod, so that the steering knuckle 531 can be movable relative to the lower control arm body 10.

[0102] Therefore, by arranging the ball joint 30 on the first connecting portion 12, the lower control arm body 10 and the steering knuckle 531 can be movably connected, so that the steering knuckle 531 can be movably connected to the vehicle body.

[0103] like Figure 4As shown, according to some embodiments of the present invention, the second connecting portion 13 has a receiving hole 130 for installing the bushing 40 , and the second connecting portion 13 is connected to the vehicle body through the bushing 40 .

[0104] Specifically, the inner surface of the bushing 40 can be movably connected to the vehicle body through a connecting shaft, and the outer surface of the bushing 40 is fixedly connected to the hole wall of the accommodating hole 130 on the second connecting portion 13, thereby connecting the lower control arm body 10 to the vehicle body.

[0105] Therefore, by providing the bushing 40 on the second connecting portion 13 , the connection between the lower control arm body 10 and the vehicle body can be achieved, so that the steering knuckle 531 can be movably connected to the vehicle body.

[0106] Therefore, the lower control arm assembly 100 according to the utility model has at least the following beneficial technical effects:

[0107] 1) A groove 1103 is provided on the upper surface of the main body 11 of the lower control arm body 10, which can effectively avoid the space occupied by the motor of the EMB brake system or other components integrated on the rim during the wheel turning or up and down bouncing, so it can be applied to the steering suspension system of a mini car or a wire-controlled chassis.

[0108] 2) The lower control arm body 10 is set as a curved structure to limit the above-mentioned groove 1103. When the EMB braking system is integrated on the wheel and the brake motor is installed on the caliper, the wheel and suspension system 500 can still be used in complex working conditions with a large space margin, so that a larger wheel turning angle can be obtained, which is beneficial for the vehicle 600 to achieve an on-the-spot U-turn or other working conditions that require a larger wheel turning angle.

[0109] 3) The shock absorber mounting portion 20 is connected to the bottom wall and at least one side wall of the groove 1103, which increases the connection position between the shock absorber mounting portion 20 and the lower control arm body 10, and can improve the installation reliability of the shock absorber 51. In addition, since the shock absorber mounting portion 20 is located in the groove 1103, the lower end of the shock absorber 51 can be closer to the first connecting portion 12 of the lower control arm body 10, so that the lower end of the shock absorber 51 can be closer to the wheel. In this way, the shock absorber 51 can be set longer, which is convenient for the arrangement of the shock absorber 51, and at the same time improves the lever ratio of the suspension and the shock absorber 51.

[0110] 4) A weight-reducing groove 1105 is provided on the lower surface of the main body 11 of the lower control arm body 10, and a weight-reducing through hole 1104 is provided on the main body 11 and the weight-reducing through hole 1104 is at least partially located between the first mounting lug 21 and the second mounting lug 22 of the shock absorber mounting portion 20, and two second connecting portions 13 are provided and the two second connecting portions 13 are spaced apart in the length direction of the vehicle 600. Through the above-mentioned structural improvement, the mass of the lower control arm body 10 can be reduced.

[0111] The suspension system 500 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0112] like Figure 4 and Figure 5 As shown, a suspension system 500 according to an embodiment of the present invention includes the lower control arm assembly 100 described in the above embodiment.

[0113] According to the suspension system 500 of the embodiment of the utility model, by adopting the lower control arm assembly 100 in any of the above-mentioned embodiments, a reasonable arrangement of the various components of the suspension system 500 and the wheel assembly can be achieved, which is beneficial to improving space utilization, so that the wheel assembly can obtain a larger wheel turning angle, which is beneficial for the vehicle 600 to achieve an on-the-spot U-turn or other working conditions that require a larger wheel turning angle.

[0114] The suspension system 500 includes a lower control arm assembly 100, a shock absorber 51 and an upper control arm assembly 52. ​​The brake angle assembly 53 is arranged on the wheel rim, and the brake angle assembly 53 includes a steering knuckle 531, the steering knuckle 531 is movably connected to the first connection portion 12 of the lower control arm assembly 100 through a ball joint 30, and the second connection portion 13 of the lower control arm assembly 100 is connected to the vehicle body through a bushing 40.

[0115] like Figure 6 As shown, a vehicle 600 according to an embodiment of the present invention includes the suspension system 500 described in the above embodiment.

[0116] According to the vehicle 600 of the embodiment of the utility model, by adopting the above suspension system 500, the vehicle 600 can realize an on-the-spot U-turn or other working conditions requiring a larger wheel turning angle.

[0117] In the description of the present invention, it should be understood that the terms "center", "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 a limitation on the present invention.

[0118] In the description of the present invention, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. In the description of the present invention, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0119] Other structures and operations of the lower control arm assembly 100 , the suspension system 500 and the vehicle 600 according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail herein.

[0120] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0121] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lower control arm assembly, characterized in that: include: A lower control arm body, the lower control arm body comprising a main body, a first connecting part and a second connecting part, the main body is connected between the first connecting part and the second connecting part, the first connecting part is used to connect to the steering knuckle, and the second connecting part is used to connect to the vehicle body; Wherein, the upper surface of the main body has a groove which is recessed downward.

2. The lower control arm assembly according to claim 1, characterized in that: At least a portion of the main body is bent downward to form the groove on the upper surface of the main body.

3. The lower control arm assembly according to claim 1, characterized in that: The lower control arm assembly also includes: A shock absorber mounting portion is disposed in the groove and connected to the main body, and is used for mounting a shock absorber.

4. The lower control arm assembly according to claim 3, characterized in that: The main body comprises a first extension segment, a second extension segment and a third extension segment arranged in a first direction, the second extension segment is connected between the first extension segment and the third extension segment, the first extension segment is connected between the second extension segment and the first connecting portion, and the third extension segment is connected between the second extension segment and the second connecting portion; The groove is defined between the first extension section, the second extension section and the third extension section, the second extension section forms a bottom wall of the groove, and the shock absorber mounting portion is connected to at least the first extension section and the second extension section.

5. The lower control arm assembly according to claim 4, characterized in that: During the movement of the shock absorber, the central axis of the shock absorber passes through the connection position of the first extension section and the second extension section.

6. The lower control arm assembly according to claim 4, characterized in that: The first extension section and the third extension section extend obliquely in a direction away from each other.

7. The lower control arm assembly according to claim 4, characterized in that: A side of the shock absorber mounting portion away from the second extending section is flush with the first connecting portion.

8. The lower control arm assembly according to claim 3, characterized in that: The shock absorber mounting portion includes a first mounting lug and a second mounting lug that are arranged opposite to each other in a second direction, and the shock absorber portion is arranged between the first mounting lug and the second mounting lug.

9. The lower control arm assembly according to claim 1, characterized in that: The main body is provided with a weight-reducing portion, and the weight-reducing portion includes a weight-reducing through hole and / or a weight-reducing groove, and the weight-reducing portion is located on the bottom wall of the groove and / or the side wall of the groove.

10. The lower control arm assembly according to claim 9, characterized in that: The weight-reducing portion includes a weight-reducing groove, and the weight-reducing groove is located on the lower surface of the main body; and / or the weight-reducing groove is located at a position of the main body close to the second connecting portion.

11. The lower control arm assembly according to any one of claims 1 to 10, characterized in that: In a plane perpendicular to the third direction, projections of the first connecting portion and the main body portion are combined to form a triangle.

12. The lower control arm assembly according to any one of claims 1 to 10, characterized in that: The second connection parts include two, the two second connection parts are arranged in the second direction, and the main body and the two second connection parts define an avoidance gap.

13. The lower control arm assembly according to any one of claims 1 to 10, characterized in that: The first connection part is used for installing a ball joint, and the first connection part is connected to the steering knuckle through the ball joint. The second connection part has a receiving hole for installing a bushing, and the second connection part is connected to the vehicle body through the bushing.

14. A suspension system, characterized in that: Comprising a lower control arm assembly according to any one of claims 1-13.

15. A vehicle, characterized in that: Comprising a suspension system according to claim 14.

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