Swing arm, lower swing arm assembly, suspension assembly and vehicle

Abstract

The present disclosure relates to a swing arm, a lower swing arm assembly, a suspension assembly and a vehicle, the swing arm comprising a first plate and a second plate connected to each other, the first plate and the second plate being stacked, a socket being formed between the first plate and the second plate for inserting a ball pin seat to be clamped and connected by the first plate and the second plate. The technical solution provided by the present disclosure can meet the lightweight requirement, reduce the unsprung mass of the vehicle, improve the response speed and handling performance of the suspension system. At the same time, the clamping and fixing of the ball pin seat by the first plate and the second plate can improve the stability of the connection, avoid breaking, disengaging or loosening in non-collision conditions, and make the overall stability better, more safe and reliable in use.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, specifically to a control arm, a lower control arm assembly, a suspension assembly, and a vehicle. Background Technology

[0002] The control arms of a vehicle mainly play a guiding and supporting role in the vehicle suspension system. They are an important component connecting the vehicle subframe and the wheel system, and their structural strength, rigidity, and lightweighting directly affect the safety of the vehicle in the event of a collision.

[0003] In related technologies, the overall stability and strength requirements of the swing arm still need to be improved. Utility Model Content

[0004] The purpose of this disclosure is to provide a control arm, a lower control arm assembly, a suspension assembly, and a vehicle, wherein the control arm structure has better stability and can better meet the safety requirements during vehicle collisions, thereby at least partially solving the aforementioned technical problems.

[0005] To achieve the above objectives, a first aspect of this disclosure provides a swing arm including a first plate and a second plate connected to each other, the first plate and the second plate being stacked, and a socket for inserting a ball pin seat is formed between the first plate and the second plate to clamp and connect the ball pin seat through the first plate and the second plate.

[0006] The above technical solution involves connecting a first plate and a second plate, forming a socket between them for inserting a ball joint seat. This socket meets the requirements for lightweight design, reduces the unsprung mass of the vehicle, and improves the response speed and handling performance of the suspension system. Simultaneously, the clamping and fixing of the ball joint seat by the first and second plates enhances the stability of the connection, preventing breakage, detachment, or loosening in non-collision situations. Therefore, the lower control arm structure provided in this disclosure offers better overall stability and enhanced safety and reliability.

[0007] Optionally, both the first plate and the second plate are provided with mounting surfaces for conforming to the ball pin seat, and the mounting surfaces on the first plate and the second plate are arranged opposite to each other. Providing mounting surfaces can increase the contact area with the ball pin seat and improve the uniformity and stability of the clamping force.

[0008] Optionally, both the first and second plates are provided with rivet holes for connection to the ball joint seat via rivets passing through the rivet holes and the ball joint seat. This eliminates the need for bolt connections in traditional processes, avoiding the machining of threaded holes in the first and second plates, thus reducing manufacturing steps and costs.

[0009] Optionally, the first plate and the second plate together form a socket portion and a first arm portion, the socket being formed in the socket portion, and the thickness of the first arm portion being greater than the thickness of the socket portion. This differential thickness design optimizes structural strength and reduces structural weight.

[0010] Optionally, the first plate and the second plate together form a first mounting portion for connecting the rear bushing, a second mounting portion for connecting the front bushing, and a socket portion forming the insertion port. A crumple-up energy-absorbing structure is provided between any two of the first mounting portion, the second mounting portion, and the socket portion on the first plate and / or the second plate. By providing the crumple-up energy-absorbing structure, i.e., the weakened area, it can preferentially deform (e.g., fracture) upon being subjected to external impact, thus absorbing impact energy.

[0011] Optionally, the first mounting portion has a first mounting hole for fitting the rear bushing, and the position of the insertion portion is offset from the position of the first mounting hole in a first direction parallel to the axis of the first mounting hole. This offset arrangement optimizes load distribution and facilitates the collapse and energy absorption of the crumple zones on the first and / or second plates during a side impact.

[0012] Optionally, the first plate and the second plate also jointly form a first arm connecting the socket portion and the second mounting portion, and a second arm connecting the first arm and the first mounting portion, with the collapsible energy-absorbing structure disposed on the first arm and / or the second arm. This optimizes the positional arrangement of the collapsible energy-absorbing structure while ensuring overall rigidity and strength.

[0013] Optionally, the thickness of the first arm gradually increases from the insertion portion toward the second mounting portion, and the thickness of the second arm gradually increases from the first mounting portion toward the first arm. This gradual change in thickness enables a smooth transition of stress, reduces stress peaks in local areas, and improves the bending resistance of both the first and second arms.

[0014] Optionally, the collapsible energy-absorbing structure includes a groove structure recessed into the first plate or the second plate. It undergoes controllable deformation under pressure, thereby improving the energy absorption effect.

[0015] Optionally, the first plate has a first tool hole, and the second plate has a second tool hole. The first tool hole and the second tool hole are arranged opposite to each other and are located at the connection between the first arm and the second arm. The first tool hole and the second tool hole facilitate the installation and removal of vehicle components such as the front suspension module.

[0016] Optionally, the first tool hole and the second tool hole are elliptical. This allows the tool to pass through both the first and second tool holes normally, regardless of the arm's orientation.

[0017] Optionally, the first plate and the second plate have different thicknesses. By designing different plate thicknesses, the relationship between the weight and strength requirements of the swing arm can be balanced.

[0018] Optionally, a portion of the edge of the first plate is provided with a first flange extending toward the second plate, and a portion of the edge of the second plate is provided with a second flange extending toward the first plate, wherein the first flange and the second flange at least partially overlap and are connected. By providing the first flange and the second flange, the connection strength can be enhanced.

[0019] Optionally, the first plate and the second plate together form a first mounting portion. The first mounting portion has a first mounting hole for fitting onto the rear bushing. The first plate has a third flange extending around the first mounting hole and toward the second plate, and the second plate has a fourth flange extending around the first mounting hole and toward the first plate. The third flange and the fourth flange are used to fit onto the rear bushing. By providing the third flange and the fourth flange, the contact area with the rear bushing can be increased, while the rear bushing is axially limited to prevent it from detaching from the swing arm.

[0020] Optionally, multiple positioning holes are formed on the first and second plates. This ensures precise alignment of the first and second plates during stamping and welding.

[0021] A second aspect of this disclosure provides a lower control arm assembly including the aforementioned control arm and a ball joint seat, the ball joint seat having a plate portion for insertion into the socket. The plate portion is provided to facilitate the installation of the ball joint seat.

[0022] Optionally, the lower control arm assembly further includes a front bushing, a rear bushing, and a sleeve. The rear bushing is connected to a first mounting portion formed by the first plate and the second plate. The sleeve is connected to a second mounting portion formed by the first plate and the second plate and is fitted onto the front bushing. A fifth flange is provided on the side of the front bushing opposite to the rear bushing, and the fifth flange can abut against the sleeve. By providing the fifth flange, axial movement or rotation of the front bushing can be restricted.

[0023] A third aspect of this disclosure is to provide a suspension assembly including the aforementioned lower control arm assembly.

[0024] A fourth aspect of this disclosure is to provide a vehicle including the aforementioned suspension assembly. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0026] Figure 1 This is an exploded view of the lower control arm assembly provided in the exemplary embodiments of this disclosure;

[0027] Figure 2 This is an exploded view of the swing arm provided in an exemplary embodiment of this disclosure;

[0028] Figure 3 This is a schematic diagram of the overall structure of the swing arm provided in the exemplary embodiments of this disclosure. Figure 1 ;

[0029] Figure 4 This is a schematic diagram of the overall structure of the swing arm provided in the exemplary embodiments of this disclosure. Figure 2 ;

[0030] Figure 5 This is a top view of the lower control arm assembly provided in an exemplary embodiment of this disclosure;

[0031] Figure 6 This is a bottom view of the swing arm provided in an exemplary embodiment of this disclosure.

[0032] Explanation of reference numerals in the attached figures

[0033] 10. First plate; 11. Second plate; 12. Insert; 100. First flange; 110. Second flange; 120. Insert portion; 1200. Rivet hole; 1201. Mounting surface; 130. First arm portion; 140. Second mounting portion; 1400. Protrusion; 150. First mounting portion; 1500. First mounting hole; 1501. Third flange; 1502. Fourth flange; 151. Second arm portion; 1510. Groove structure; 160. First tool hole; 161. Second tool hole; 17. Positioning hole; 171. Welding positioning hole; 172. Stamping positioning hole;

[0034] 2. Ball pin seat; 20. Body; 21. Plate body; 22. Rivet;

[0035] 3. Front bushing; 30. Fifth flange;

[0036] 4. Rear bushing;

[0037] 5. Sleeve. Detailed Implementation

[0038] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0039] In this disclosure, unless otherwise stated, "inner" and "outer" refer to the inner and outer contours of the corresponding components. Furthermore, the terms "first" and "second" used in this disclosure are for distinguishing one element from another and are not sequential or significant. In addition, when the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0040] according to Figures 1 to 6 As shown, in a first aspect of this disclosure, a swing arm is provided, which may include a first plate 10 and a second plate 11 connected to each other, the first plate 10 and the second plate 11 being stacked, and a socket 12 for inserting a ball pin seat 2 can be formed between the first plate 10 and the second plate 11 to clamp and connect the ball pin seat 2 through the first plate 10 and the second plate 11.

[0041] Through the above technical solution, the setting of the connector 12 can meet the requirements of lightweighting and reduce the unsprung mass of the vehicle, thereby improving the response speed and handling performance of the suspension system. At the same time, the clamping and fixing of the ball pin seat 2 by the first plate 10 and the second plate 11 can improve the stability of the connection and avoid breakage, detachment or loosening in non-collision situations, thus making it safer and more reliable to use.

[0042] Among them, exemplarily as Figure 1 and Figure 2 As shown, the socket 12 can be the gap formed between the first plate 10 and the second plate 11 after they are stacked. The size of the socket 12 can be adjusted adaptively according to the size of the ball pin seat 2. This disclosure is not limited thereto, and those skilled in the art can make adaptive adjustments according to actual needs.

[0043] In some feasible ways, for example, refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, both the first plate 10 and the second plate 11 may be provided with mounting surfaces 1201 for fitting against the ball pin seat 2. The mounting surfaces 1201 on the first plate 10 and the second plate 11 are arranged opposite to each other. By providing mounting surfaces 1201, the contact area with the ball pin seat 2 can be increased, improving the uniformity and stability of the clamping force, reducing stress concentration, and thus extending the service life of the ball pin seat 2 and the first plate 10 and the second plate 11.

[0044] The mounting surface 1201 can be constructed in any suitable manner; for example, the mounting surface 1201 can be constructed as a smooth plane. This disclosure is not limited thereto.

[0045] In some feasible ways, for example, refer to Figures 1 to 5As shown, both the first plate 10 and the second plate 11 can be provided with rivet holes 1200, so as to be connected to the ball pin seat 2 by rivets 22 passing through the rivet holes 1200 and the ball pin seat 2. The swing arm is connected to the ball pin seat through the above-mentioned socket method. Compared with the related technology, the present disclosure can eliminate the bolt connection method in the traditional process, so as to avoid machining threaded holes on the first plate 10 and the second plate 11, reducing manufacturing steps and costs. In addition, the weight of the rivet 22 is smaller than that of the bolt, which can better meet the requirements of lightweight swing arm. At the same time, by providing rivets 22, the rivets 22 are more likely to break and detach when the wheel is subjected to a violent external impact, so as to meet the requirements of vehicle safety.

[0046] In some feasible ways, for example, refer to Figures 1 to 4 As shown, the first plate 10 and the second plate 11 can together form the socket portion 120 and the first arm portion 130. The socket 12 is formed in the socket portion 120, and the thickness of the first arm portion 130 can be greater than the thickness of the socket portion 120. Through the differentiated design of thickness, the structural strength and structural lightweight are optimized. The socket portion 120 is thinner and lighter than the first arm portion 130, while the first arm portion 130 is thicker and has a stronger load-bearing capacity. This improves the local bending resistance of the swing arm and avoids deformation.

[0047] The number of rivet holes 1200 can be adjusted according to actual needs. For example, the insertion part 120 can be constructed as a roughly triangular structure, and the number of rivet holes 1200 can be three. The three rivet holes 1200 can be arranged at the three corners of the triangular structure to further enhance the stability of the structure. This disclosure does not make specific limitations in this regard.

[0048] Among them, exemplarily as Figure 4 As shown, the thickness mentioned in this disclosure can be the height in the vertical direction, and the vertical direction can be the height direction of the vehicle.

[0049] Optionally, the connection between the first arm portion 130 and the socket portion 120 can be a curved transition connection to effectively disperse stress, avoid stress concentration at the connection, and thus improve the stability and durability of the structure.

[0050] In some feasible ways, for example, refer to Figures 1 to 3As shown, the first plate 10 and the second plate 11 can together form a first mounting portion 150 for connecting the rear bushing 4, a second mounting portion 140 for connecting the front bushing 3, and a socket portion 120 forming the socket 12. A crumple zone energy-absorbing structure can be provided between any two of the first mounting portion 150, the second mounting portion 140, and the socket portion 120 in the first plate 10 and / or the second plate 11. By providing a crumple zone energy-absorbing structure, i.e., a weakened area, it can preferentially deform (e.g., fracture) when subjected to external impact, absorbing impact energy and protecting other components on the first and second plates (e.g., ball joint 2, front bushing 3, etc.), thereby improving the vehicle's passive safety and effectively reducing after-sales maintenance costs.

[0051] In some feasible ways, for example, refer to Figures 1 to 6 As shown, the first mounting portion 150 may have a first mounting hole 1500 for fitting the rear bushing 4. In a first direction parallel to the axis of the first mounting hole 1500, the position of the insertion portion 120 is offset from the position of the first mounting hole 1500. This offset arrangement facilitates the energy-absorbing structure on the first plate 10 and / or the second plate 11 to absorb energy and collapse during a lateral collision of the wheel, thus optimizing the load distribution.

[0052] The first direction can be the height direction of the vehicle.

[0053] Optionally, the first mounting portion 150, the second mounting portion 140, and the insertion portion 120 can be arranged in a triangle so that the overall shape of the first plate and the second plate is roughly triangular, thereby further enhancing the stability of the swing arm.

[0054] In some feasible ways, for example, refer to Figures 1 to 6 As shown, the first plate 10 and the second plate 11 can also jointly form a first arm 130 connecting the insertion portion 120 and the second mounting portion 140, and a second arm 151 connecting the first arm 130 and the first mounting portion 150. A crumple zone energy-absorbing structure can be disposed on the first arm 130 and / or the second arm 151. By specifically adjusting the position of the crumple zone energy-absorbing structure, it can be ensured that when a wheel collides, the first plate 10 and the second plate 11 can crumple along a predetermined path, protecting the overall integrity of the suspension system and preventing unreasonable arrangement of the crumple zone from affecting the overall stiffness of the control arm, thereby ensuring the stiffness and strength requirements of the control arm during normal vehicle operation.

[0055] Optionally, the collapsible energy-absorbing structure may include a groove structure 1510 recessed into the first plate 10 or the second plate 11. The groove structure 1510 is provided on both the first plate 10 and the second plate 11. By providing the groove structure 1510, the first plate 10 or the second plate 11 can undergo controllable deformation under pressure, resulting in better energy absorption. Furthermore, the processing and manufacturing process are simpler, requiring no additional components and effectively reducing costs.

[0056] In some feasible ways, for example, refer to Figures 1 to 4 As shown, the thickness of the first arm portion 130 can gradually increase from the insertion portion 120 toward the second mounting portion 140, and the thickness of the second arm portion 151 can gradually increase from the first mounting portion 150 toward the first arm portion 130. By designing the gradual change in thickness of the first arm portion 130 and the second arm portion 151, a smooth transition of stress can be achieved, the stress peak in local areas can be reduced, and the bending resistance of the first arm portion 130 and the second arm portion 151 can be improved.

[0057] In some feasible ways, for example, refer to Figures 1 to 6 As shown, a first tool hole 160 can be provided on the first plate 10, and a second tool hole 161 can be provided on the second plate 11. The first tool hole 160 and the second tool hole 161 can be arranged opposite to each other, and the first tool hole 160 and the second tool hole 161 are located at the connection between the first arm 130 and the second arm 151. By providing the first tool hole 160 and the second tool hole 161, when disassembling and assembling the front suspension module, the operator can remove and install the mounting bolts of the front subframe and the body through the first tool hole 160 and the second tool hole 161, which is more convenient to use.

[0058] Optionally, the first tool hole 160 and the second tool hole 161 can be elliptical holes, so that the tool can pass through the first tool hole 160 and the second tool hole 161 normally to remove and install the mounting bolts of the front subframe and the body in different postures of the swing arm.

[0059] It should be noted that the different postures here can refer to the movement of the vehicle during motion (such as acceleration, braking, or driving on different road surfaces), during which the wheels and suspension system will move in different directions, and the position of the control arms will also change accordingly.

[0060] In some feasible ways, for example, refer to Figures 1 to 4As shown, the thicknesses of the first plate 10 and the second plate 11 can be different. For example, when the height of the insertion portion 120 is higher than the height of the front bushing 3 and the rear bushing 4, and the first plate 10 is above the second plate 11, the thickness of the second plate 11 can be greater than the thickness of the first plate 10; conversely, when the height of the insertion portion 120 is lower than the height of the front bushing 3 and the rear bushing 4, and the first plate 10 is above the second plate 11, the thickness of the second plate 11 can be less than the thickness of the first plate 10. This differentiated plate thickness design balances the weight and strength requirements of the swing arm, optimizes overall structural performance, and enhances operational stability.

[0061] In some feasible ways, for example, refer to Figures 1 to 4 As shown, a portion of the edge of the first plate 10 may be provided with a first flange 100 extending toward the second plate 11, and a portion of the edge of the second plate 11 may be provided with a second flange 110 extending toward the first plate 10. The first flange 100 and the second flange 110 are at least partially overlapped and connected. By providing the first flange 100 and the second flange 110, the connection strength can be enhanced.

[0062] As described above, the first flange 100 and the second flange 110 are provided so that when the first plate 10 and the second plate 11 are stacked, a cavity can be formed between the first plate 10 and the second plate 11. In addition, the first plate 10 and the second plate 11 have different thicknesses, which can meet the requirements of lightweighting and overall strength. The aforementioned socket is connected to the cavity.

[0063] In some feasible ways, for example, refer to Figures 1 to 6 As shown, the first plate 10 and the second plate 11 can together form a first mounting portion 150. The first mounting portion 150 can have a first mounting hole 1500 for fitting onto the rear bushing 4. The first plate 10 can have a third flange 1501 extending around the first mounting hole 1500 and toward the second plate 11. The second plate 11 can have a fourth flange 1502 extending around the first mounting hole 1500 and toward the first plate 10. The third flange 1501 and the fourth flange 1502 are used to fit onto the rear bushing 4. By providing the third flange 1501 and the fourth flange 1502, the contact area with the rear bushing 4 can be increased, while the rear bushing 4 is axially limited to prevent it from detaching from the swing arm. Furthermore, the third flange 1501 and the fourth flange 1502 can enhance the circumferential rigidity of the first mounting hole 1500 and reduce the risk of deformation.

[0064] The diameter of the first mounting hole 1500 can be slightly smaller than the diameter of the rear bushing 4, so that after assembly, the diameter of the rear bushing 4 is compressed and the diameter of the first mounting hole 1500 is expanded. Due to the elastic deformation of the material, pressure is generated between the assembly surfaces of the rear bushing 4 and the first mounting hole 1500. During vehicle movement, the friction generated by this pressure can be used to transmit torque, axial force or combined loads.

[0065] Optionally, when welding the first plate 10 and the second plate 11, a positioning pin can be provided in the first mounting hole 1500 to prevent uneven deformation of the first mounting hole 1500 caused by a sudden temperature change during welding, so that the two first mounting holes 1500 can be accurately aligned when welding the first plate 10 and the second plate 11.

[0066] In some feasible ways, for example, refer to Figures 1 to 6 As shown, multiple positioning holes 17 can be formed on the first plate 10 and the second plate 11. By providing multiple positioning holes 17, the precise alignment of the first plate 10 and the second plate 11 during stamping and welding can be ensured.

[0067] For example, Figure 2 As shown, the positioning hole 17 may include a stamped positioning hole 172 and a welded positioning hole 171. Different positioning holes 17 are used to avoid a single positioning hole 17 being both stamped and welded, thus avoiding the wear caused by the stamping process from affecting subsequent welding and making it more reliable in use.

[0068] The number of welding positioning holes 171 can be three, and the three welding positioning holes 171 can be arranged close to the first mounting part 150, the second mounting part 140 and the socket part 120 respectively; the number of stamping positioning holes 172 can be two, and the two stamping positioning holes 172 can be arranged close to the socket part 120 and the first mounting part 150 respectively. This disclosure is not limited thereto.

[0069] A second aspect of this disclosure provides a lower control arm assembly, which may include a control arm and a ball joint seat 2. The ball joint seat 2 may have a plate portion 21 with an insertion port 12. The control arm has all the beneficial effects described in the above specific embodiments, which will not be repeated here.

[0070] The ball joint seat 2 may include a body 20 connected to the plate body 21. The body 20 is used to connect to the universal joint of the wheel so that the body 20 can drive the lower control arm assembly to change as the wheel turns.

[0071] In some feasible ways, for example, refer to Figure 1As shown, the swing arm assembly may further include a front bushing 3, a rear bushing 4, and a sleeve 5. The rear bushing 4 is connected to a first mounting portion 150 formed by the first plate 10 and the second plate 11. The sleeve 5 is connected to a second mounting portion 140 formed by the first plate 10 and the second plate 11 and is sleeved on the front bushing 3. A fifth flange 30 is provided on the side of the front bushing 3 opposite to the rear bushing 4, and the fifth flange 30 can abut against the sleeve 5. By providing the fifth flange 30, axial movement of the front bushing 3 can be restricted, and the friction between the front bushing 3 and the sleeve 5 can be increased, preventing the front bushing 3 from rotating, reducing vibration transmission, enhancing the fixing and support effect of the front bushing 3, and improving the durability and sealing performance of the front bushing 3.

[0072] Optionally, the sleeve 5 may also be provided with a chamfered structure to facilitate the installation of the front bushing 3.

[0073] The sleeve 5 can be made of seamless steel pipe. This disclosure does not make specific limitations in this regard.

[0074] The second mounting portion 140 can be constructed in any suitable manner. For example, the second mounting portion 140 may include a protrusion 1400, which is formed on both the first plate 10 and the second plate 11. The two protrusions 1400 are arranged opposite to each other and are used to connect the sleeve 5. For example, the two protrusions 1400 may wrap around part of the outer peripheral wall of the connecting sleeve 5 and be fixed by means of welding, for example, to improve the connection strength. This disclosure does not make specific limitations in this regard.

[0075] A third aspect of this disclosure provides a suspension assembly including a lower control arm assembly that has all the beneficial effects described in the above-described embodiments, which will not be repeated here.

[0076] A fourth aspect of this disclosure provides a vehicle including a suspension assembly that has all the beneficial effects of the above-described embodiments, which will not be repeated here.

[0077] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0078] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0079] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A swing arm, characterized in that, It includes a first plate and a second plate that are connected to each other, the first plate and the second plate are stacked, and a socket for inserting a ball pin seat is formed between the first plate and the second plate to clamp and connect the ball pin seat.

2. The swing arm according to claim 1, characterized in that, Both the first plate and the second plate are provided with mounting surfaces for fitting against the ball pin seat, and the mounting surfaces on the first plate and the second plate are arranged opposite to each other.

3. The swing arm according to claim 1, characterized in that, Both the first plate and the second plate are provided with rivet holes for connection to the ball pin seat by rivets passing through the rivet holes and the ball pin seat.

4. The swing arm according to claim 1, characterized in that, The first plate and the second plate together form a socket portion and a first arm portion, the socket being formed in the socket portion, and the thickness of the first arm portion being greater than the thickness of the socket portion.

5. The swing arm according to claim 1, characterized in that, The first plate and the second plate together form a first mounting portion for connecting the rear bushing, a second mounting portion for connecting the front bushing, and a socket portion forming the socket. The first plate and / or the second plate are provided with a collapsible energy-absorbing structure between any two of the first mounting portion, the second mounting portion, and the socket portion.

6. The swing arm according to claim 5, characterized in that, The first mounting portion has a first mounting hole for fitting the rear bushing, and in a first direction parallel to the axis of the first mounting hole, the position of the insertion portion is offset from the position of the first mounting hole.

7. The swing arm according to claim 5, characterized in that, The first plate and the second plate together form a first arm connecting the socket portion and the second mounting portion and a second arm connecting the first arm and the first mounting portion, and the collapsible energy-absorbing structure is disposed on the first arm and / or the second arm.

8. The swing arm according to claim 7, characterized in that, The thickness of the first arm gradually increases from the socket portion toward the second mounting portion, and the thickness of the second arm gradually increases from the first mounting portion toward the first arm.

9. The swing arm according to claim 5, characterized in that, The collapsible energy-absorbing structure includes a groove structure recessed into the first plate or the second plate.

10. The swing arm according to claim 7, characterized in that, The first plate has a first tool hole, and the second plate has a second tool hole. The first tool hole and the second tool hole are arranged opposite to each other and are located at the connection between the first arm and the second arm.

11. The swing arm according to claim 10, characterized in that, The first tool hole and the second tool hole are elliptical holes.

12. The swing arm according to claim 1, characterized in that, The first plate and the second plate have different thicknesses.

13. The swing arm according to claim 1, characterized in that, The first plate has a first flange extending toward the second plate on a portion of its edge, and the second plate has a second flange extending toward the first plate on a portion of its edge, with the first flange and the second flange at least partially overlapping and connected.

14. The swing arm according to claim 1, characterized in that, The first plate and the second plate together form a first mounting portion, the first mounting portion having a first mounting hole for fitting onto the rear bushing, the first plate having a third flange extending around the first mounting hole toward the second plate, and the second plate having a fourth flange extending around the first mounting hole toward the first plate, the third flange and the fourth flange being fitted onto the rear bushing.

15. The swing arm according to claim 1, characterized in that, Multiple positioning holes are formed on the first plate and the second plate.

16. A lower control arm assembly, characterized in that, The invention includes the swing arm and ball joint as described in any one of claims 1-15, wherein the ball joint has a plate portion that inserts into the socket.

17. The lower control arm assembly according to claim 16, characterized in that, The lower control arm assembly also includes a front bushing, a rear bushing, and a sleeve. The rear bushing is connected to a first mounting portion formed by the first plate and the second plate. The sleeve is connected to a second mounting portion formed by the first plate and the second plate and is sleeved on the front bushing. The front bushing has a fifth flange on the side opposite to the rear bushing, and the fifth flange can abut against the sleeve.

18. A suspension assembly, characterized in that, Includes the lower control arm assembly as described in any one of claims 16-17.

19. A vehicle, characterized in that, Includes the suspension assembly as described in claim 18.

Images