Suspension structure and vehicle

Abstract

Provided are a suspension structure (400) and a vehicle (1000) comprising the suspension structure. The suspension structure (400) comprises a bracket structure (10), a swing arm structure (20) and a fastener (30), wherein the bracket structure comprises a bracket body (11) and a plurality of first connection structures (12) spaced apart and connected to the bracket body; the swing arm structure comprises a swing arm body (21) and a second connection structure (22) which is connected to the swing arm body and is arranged between two adjacent first connection structures; and the fastener is arranged in the second connection structure and the two adjacent first connection structures in a penetrating manner, such that the bracket body is rotationally connected to the swing arm body. Under the action of the fastener, the second connection structure is connected to two adjacent first connection structures, so as to achieve the rotational connection between the bracket body and the swing arm body. In this way, the connection stiffness between the first connection structure and the second connection structure can be improved, so that the yaw stiffness between the bracket structure and the swing arm structure can be improved, thereby improving the handling performance and comfort of the vehicle.

Description

Suspension structure and vehicle

[0001] Cross-references

[0002] This application claims priority to Chinese patent application No. 202422076045.9, filed on August 26, 2024, with the State Intellectual Property Office of the People's Republic of China, entitled "Suspension Structure and Vehicle", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of vehicle technology, specifically to a suspension structure and a vehicle. Background Technology

[0004] In related technologies, suspension structures typically include a bracket and a swing arm, which are rotatably connected so that the swing arm can swing relative to the bracket structure during vehicle operation, thereby absorbing the impact or vibration applied to the vehicle body from the ground.

[0005] In some cases, the yaw stiffness at the connection point between the bracket and the swing arm is too low, which affects the handling performance and user comfort of the wheel. Summary of the Invention

[0006] In view of the above problems, the purpose of this application is to provide a suspension structure and vehicle that can improve the yaw stiffness between the control arm and the bracket.

[0007] The technical solution adopted in the embodiments of this application is:

[0008] In a first aspect, embodiments of this application provide a suspension structure, including:

[0009] The stent structure includes a stent body and a plurality of first connection structures spaced apart and connected to the stent body.

[0010] The swing arm structure includes a swing arm body and a second connecting structure connected to the swing arm body, wherein the second connecting structure is disposed between two adjacent first connecting structures;

[0011] Fasteners are inserted into the second connecting structure and the two adjacent first connecting structures to enable the bracket body and the swing arm body to be rotatably connected.

[0012] The suspension structure provided in this application embodiment includes a bracket structure comprising multiple first connecting structures. A second connecting structure of the swing arm structure is disposed between two adjacent first connecting structures, and fasteners are inserted through the second connecting structure and the two adjacent first connecting structures. Under the action of the fasteners, the second connecting structure and the two adjacent first connecting structures are connected to achieve a rotational connection between the bracket body and the swing arm body. This can improve the connection stiffness between the first connecting structure and the second connecting structure, thereby improving the yaw stiffness between the bracket structure and the swing arm structure, and thus improving the vehicle's handling performance and user comfort.

[0013] In some embodiments, at least one first connection structure includes a first connecting seat and a first rotating member; the first connecting seat is connected to the bracket body and has a first mounting hole extending through the fastener along its axial direction; at least a portion of the first rotating member is rotatably disposed within the first mounting hole, and the fastener passes through the first rotating member.

[0014] By passing a fastener through the first rotating member, the fastener and the first rotating member can be connected. In this way, the fastener and the first rotating member can rotate together around the central axis of the fastener, allowing the swing arm body to swing relative to the bracket body with the fastener, so as to absorb the impact or vibration applied to the vehicle body from the ground.

[0015] In some embodiments, the first rotating member includes a first ball head, at least a portion of which is rotatably disposed within a first mounting hole, and a fastener passes through the first ball head.

[0016] The first rotating member includes a first ball head, at least a portion of which is rotatably disposed within a first mounting hole. This facilitates rotation of the first rotating member relative to the first connecting seat, thereby absorbing impacts or vibrations applied to the wheel from the ground. Furthermore, the placement of the first ball head provides the first rotating member with greater rigidity, which helps improve the connection rigidity between the first rotating member and the first connecting seat, thus enhancing the yaw rigidity between them. Consequently, the yaw rigidity between the support structure and the swing arm structure can be improved.

[0017] In some embodiments, the first rotating member further includes a first pin portion, the first pin portion and the first ball head are axially connected, and a fastener passes through the first pin portion.

[0018] By setting the first ball head and the first pin, the structural rigidity of the first rotating member can be improved, which helps to improve the connection rigidity between the first rotating member and the first connecting seat, thereby improving the yaw rigidity between the first rotating member and the first connecting seat, and thus improving the yaw rigidity between the support structure and the swing arm structure.

[0019] In some embodiments, along the axial direction, both opposite ends of the first ball head are connected to a first pin portion.

[0020] This configuration improves the balance performance of the first rotating component, thereby enhancing the relative rotational stability between the support structure and the swing arm structure. This also helps to increase the yaw stiffness between the first rotating component and the first connecting seat, thus improving the yaw stiffness between the support structure and the swing arm structure.

[0021] In some embodiments, the first mounting hole includes a first through hole section and a first groove section. The first through hole section extends through the first connecting seat along the axial direction, and the first groove section communicates with the outer periphery of the first through hole section. A portion of the first ball head is disposed in the first through hole section, and another portion is axially confined in the first groove section.

[0022] By axially confining another portion of the first ball head within the first groove section, the first rotating member can be stably confined axially onto the first connecting seat, thus achieving a secure connection between the first rotating member and the first connecting seat. This helps to improve the connection stiffness between the first rotating member and the first connecting seat, thereby increasing the yaw stiffness between the support structure and the swing arm structure.

[0023] In some embodiments, at least one first connection structure further includes a first filler material filled between the first connection seat and the first rotating member.

[0024] By setting the first filler, the first connecting structure can effectively mitigate the impact or vibration transmitted from the ground to the vehicle body.

[0025] In some embodiments, at least one first connection structure further includes a first sleeve, at least a portion of which is fitted into a first mounting hole, the first sleeve being sleeved around the outer periphery of the first rotating member, and a first filler filling the space between the first rotating member and the first sleeve.

[0026] By adopting the above technical solution, the first sleeve, the first filler, and the first rotating component can roughly form a bushing. This allows the first rotating component to rotate relative to the first sleeve, thereby enabling the swing arm body to rotate relative to the support body, thus absorbing the impact or vibration applied to the vehicle body from the ground. Furthermore, the first filler is filled between the first sleeve and the first rotating component, allowing the bushing formed by the first sleeve, the first filler, and the first rotating component to be stably assembled. This gives the bushing a certain structural rigidity, thereby providing a certain degree of yaw stiffness between the swing arm structure and the support structure.

[0027] In some embodiments, the first rotating member and the first sleeve are steel, aluminum, or nylon structures.

[0028] This configuration gives both the first rotating component and the first sleeve greater structural rigidity, thereby increasing the connection rigidity between the first rotating component and the first connecting seat, which in turn helps to increase the yaw rigidity between the first rotating component and the first connecting seat, and thus increases the yaw rigidity between the support structure and the swing arm structure.

[0029] In some embodiments, the first connector and the bracket body are integrally connected.

[0030] This configuration can improve the connection strength between the first connecting seat and the support body, thereby increasing the structural rigidity of the support structure and also helping to improve the yaw stiffness between the swing arm structure and the support structure.

[0031] In some embodiments, the second connection structure includes a second connecting seat and a second rotating member; the second connecting seat is connected to the swing arm body and has a second mounting hole extending through the fastener along its axial direction; at least a portion of the second rotating member is rotatably disposed within the second mounting hole, and the fastener passes through the second rotating member.

[0032] The fastener and the second rotating member are connected by passing a fastener through them. This allows the fastener and the second rotating member to rotate together around the fastener's central axis, enabling the swing arm body to rotate relative to the fastener and thus swing relative to the support body to absorb impacts or vibrations applied to the wheels from the ground.

[0033] In some embodiments, the second rotating member includes a second ball head and a second pin portion, the second pin portion and the second ball head being axially connected; at least a portion of the second ball head is rotatably disposed in a second mounting hole, and a fastener passes through the second ball head and the second pin portion.

[0034] The second rotating member includes a second ball head, at least a portion of which is rotatably disposed within a second mounting hole. This facilitates rotation of the second rotating member relative to the second connecting seat, thereby absorbing impacts or vibrations applied to the wheel from the ground. Furthermore, the arrangement of the second ball head and the second pin portion gives the second rotating member greater rigidity, which helps to improve the connection rigidity between the second rotating member and the second connecting seat, thus improving the yaw rigidity between the second rotating member and the second connecting seat, and consequently, improving the yaw rigidity between the support structure and the swing arm structure.

[0035] In some embodiments, along the axial direction, both opposite ends of the second ball head are connected to a second pin portion.

[0036] This configuration improves the balance performance of the second rotating component, thereby enhancing the relative rotational stability between the support structure and the swing arm structure. It also helps to reduce the yaw stiffness between the second rotating component and the second connecting seat, thus improving the yaw stiffness between the support structure and the swing arm structure.

[0037] In some embodiments, the second mounting hole includes a second through hole section and a second groove section, the second through hole section extending axially through the second connecting seat, and the second groove section communicating with the outer periphery of the second through hole section; a portion of the second ball head and at least a portion of the second pin shaft are disposed within the second through hole section, and another portion of the second ball head is axially confined within the second groove section.

[0038] By confining another portion of the second ball head axially within the second groove section, the second rotating member can be stably confined axially onto the second connecting seat, thus achieving a secure connection between the second rotating member and the second connecting seat. This helps to improve the connection stiffness between the second rotating member and the second connecting seat, thereby increasing the yaw stiffness between the support structure and the swing arm structure.

[0039] In some embodiments, the second connection structure further includes:

[0040] The second sleeve is at least partially assembled in the second mounting hole, and the second sleeve is sleeved on the outer periphery of the second rotating part;

[0041] The second filler is placed between the second sleeve and the second rotating component.

[0042] By adopting the above technical solution, the second sleeve, the second filler, and the second rotating component can roughly form a bushing. This allows the second rotating component to rotate relative to the second sleeve, thereby enabling the swing arm body to rotate relative to the support body, thus absorbing impacts or vibrations applied to the vehicle body from the ground. Furthermore, the second filler fills the space between the second sleeve and the second rotating component, ensuring a stable assembly of the bushing formed by the second sleeve, the second filler, and the second rotating component. This gives the bushing a certain structural rigidity, resulting in a certain degree of yaw stiffness between the swing arm structure and the support structure.

[0043] In some embodiments, along the axial direction of the fastener, the second connecting structure abuts against two adjacent first connecting structures.

[0044] This configuration allows the first and second connecting structures to abut against each other along the axial direction, which helps to improve the connection stiffness between the first and second connecting structures, thereby improving the yaw stiffness between the first and second connecting structures, and thus improving the yaw stiffness between the swing arm body and the support body.

[0045] In some embodiments, the swing arm structure includes a plurality of second connection structures spaced apart from the swing arm body, and a first connection structure is disposed between two adjacent second connection structures.

[0046] This configuration allows the first connecting structure to be axially confined between two adjacent second connecting structures, and the second connecting structure to be axially confined between two adjacent first connecting structures. This significantly improves the connection stiffness between the first and second connecting structures, thereby increasing the yaw stiffness between them. This, in turn, improves the yaw stiffness between the swing arm body and the support body.

[0047] In some embodiments, the bracket body has a third mounting hole extending through the axial direction of the fastener, the third mounting hole being used to connect a wheel.

[0048] This configuration ensures that the axis of rotation of the control arm body relative to the support body is approximately parallel to the wheel axle. Thus, the suspension structure provided in this embodiment can improve the yaw stiffness between the control arm body and the support body, given that the control arm body can rotate relative to the support body about a central axis parallel to the wheel axle.

[0049] In some embodiments, the swing arm body includes a rear swing arm or a torsion beam rear axle swing arm.

[0050] This configuration can improve the yaw stiffness between the rear swing arm and the support body; or, it can improve the yaw stiffness between the swing arm and the support body of the torsion beam rear axle.

[0051] Secondly, embodiments of this application provide a vehicle including a suspension structure.

[0052] The vehicle provided in this application embodiment, by adopting the suspension structure involved in the above embodiments, can improve the yaw stiffness between the bracket structure and the swing arm structure, thereby improving the vehicle's handling performance and user comfort.

[0053] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 is a schematic diagram of a vehicle provided in some embodiments of this application;

[0056] Figure 2 is a partial perspective view of the suspension structure provided in some embodiments of this application;

[0057] Figure 3 is a cross-sectional view along AA in Figure 2;

[0058] Figure 4 is an enlarged view of point B in Figure 3;

[0059] Figure 5 is a partial cross-sectional view of a suspension structure provided in some other embodiments of this application;

[0060] Figure 6 is an enlarged view of point C in Figure 5;

[0061] Figure 7 is a partial perspective structural view of the suspension structure provided in some embodiments of this application;

[0062] Figure 8 is a cross-sectional view along DD in Figure 7;

[0063] Figure 9 is an enlarged view of point E in Figure 8;

[0064] Figure 10 is a partial cross-sectional view of a suspension structure provided in some embodiments of this application;

[0065] Figure 11 is an enlarged view of point F in Figure 10;

[0066] Figure 12 is a partial perspective view of the suspension structure provided in some other embodiments of this application.

[0067] In the diagram, the following labels are used: 1000-Vehicle; 100-Battery; 200-Controller; 300-Powertrain; 400-Suspension Structure; 10-Support Structure; 101- First mounting hole; 1011-First through hole section; 1012-First groove section; 102-Third mounting hole; 11-Bracket body; 12-First connecting structure; 121-First connecting seat; 122-First rotating component; 1221-First ball head; 1222-First pin shaft; 123-First sleeve; 124-First filler; 20-Swing arm structure; 201-Second mounting hole; 2011-Second through hole section; 2012-Second groove section; 21-Swing arm body; 22-Second connecting structure; 221-Second connecting seat; 222-Second rotating component; 2221-Second ball head; 2222-Second pin shaft; 223-Second sleeve; 224-Second filler; 30-Fastener; L-Central shaft; X-Axial; Y-Radial. Detailed Implementation

[0068] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0069] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0070] Unless otherwise specified, all technical features and optional technical features of the embodiments of this application can be combined with each other to form new technical solutions.

[0071] In the description of the embodiments of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0073] In the description of the embodiments of this application, "multiple" means two or more, and unless otherwise explicitly specified, "two or more" includes two. Correspondingly, "multiple groups" means two or more groups, including two groups.

[0074] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0075] In the description of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three possibilities: A exists, A and B exist simultaneously, and B exists. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0076] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "proximity" and "adjacent" refer to proximity in location. For example, among three components A1, A2, and B, if the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1, meaning A2 is adjacent to B. Alternatively, B can be said to be adjacent to A2; in other words, A2 is adjacent to B. Similarly, when there are multiple components C, namely C1, C2, ... CN, if one component C, such as C2, is closer to component B than the other components C, then B is adjacent to C2; in other words, C2 is adjacent to B.

[0077] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0078] In related technologies, suspension structures typically include a bracket and a swing arm, which are rotatably connected so that the swing arm can swing relative to the bracket structure during vehicle operation, thereby absorbing the impact or vibration applied to the vehicle body from the ground.

[0079] In some cases, the yaw stiffness at the connection point between the bracket and the swing arm is too small, which affects the vehicle's handling performance and user comfort.

[0080] Based on the above considerations, this application provides a suspension structure and a vehicle. The bracket structure includes multiple first connecting structures, and the second connecting structure of the swing arm structure is located between two adjacent first connecting structures. Fasteners are inserted through the second connecting structure and the two adjacent first connecting structures, so that the second connecting structure is connected between the two adjacent first connecting structures under the action of the fasteners, thereby realizing the rotational connection between the bracket and the swing arm. This can improve the connection stiffness between the first connecting structure and the second connecting structure, thereby improving the yaw stiffness between the bracket structure and the swing arm structure, thus improving the vehicle's handling performance and user comfort.

[0081] In some embodiments, the suspension structure described in this application is applied to a vehicle.

[0082] Based on the power source, vehicles can be classified as gasoline-powered vehicles, natural gas-powered vehicles, or new energy vehicles. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Based on the drive method, vehicles can be front-wheel drive vehicles, rear-wheel drive vehicles, or four-wheel drive vehicles.

[0083] In some embodiments, please refer to FIG1, which is a schematic diagram of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 is provided with a powertrain 300, which is used to provide power to the vehicle 1000.

[0084] In some embodiments, the powertrain 300 may include an electric motor, which serves as the power source for the powertrain 300 to provide power to the vehicle.

[0085] In some embodiments, the powertrain 300 may further include a transmission connected to the motor to change the torque of the motor. Specifically, the transmission can be used as a mechanism to change the speed and torque from the motor, and it can change the output shaft and input shaft transmission ratio in fixed or progressively increments.

[0086] In some embodiments, referring to FIG1, the vehicle 1000 may further include a battery 100 and a controller 200. The battery 100 may be located at the bottom, front, or rear of the vehicle 1000 and is used to power the vehicle 1000; for example, the battery 100 may serve as the operating power source for the vehicle 1000. The controller 200 is used to control the battery 100 to supply power to the powertrain 300, for example, to meet the power requirements of the vehicle 1000 during startup, navigation, and driving.

[0087] In some embodiments, the battery 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0088] Battery 100 can be a single physical module comprising one or more battery cells to provide higher voltage and capacity. When there are multiple battery cells, they are connected in series, parallel, or mixed via a busbar. Mixed connection means that multiple battery cells are connected in both series and parallel.

[0089] In some embodiments, the battery 100 can be a battery module. When there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0090] In some embodiments, the battery 100 can be a battery pack, which may include a housing and individual battery cells. As an example, the individual battery cells may be directly housed within the housing. Alternatively, the individual battery cells may be first formed into a battery module and then housed within the housing.

[0091] As an example, multiple battery cells can be fixed together to form a battery module using cable ties or similar methods.

[0092] As an example, multiple battery cells can also be fixed together to form a battery module using end plates, side plates, etc.

[0093] A battery cell is the smallest unit that stores and outputs electrical energy. A battery cell can be a secondary battery or a primary battery. A battery cell can be, but is not limited to, a metal battery, a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery. A battery cell can be cylindrical, flat, cuboid, or other shapes.

[0094] In some embodiments, please refer to Figures 1 and 2 together, and in conjunction with other accompanying drawings. Figure 2 is a partial perspective view of a suspension structure 400 provided in some embodiments of this application. The vehicle 1000 may further include a body, wheels, and a suspension structure 400, the suspension structure 400 being connected between the body and the wheels.

[0095] The suspension structure 400 is the general term for all transmission connection devices between the body and wheels of vehicle 1000. Its function is to transmit the torque acting between the wheels and the body, buffer the impact force transmitted to the body from uneven road surfaces, and dampen the vibration caused therefrom, so that vehicle 1000 can drive smoothly.

[0096] The suspension structure 400 may include a support structure 10 and a swing arm structure 20.

[0097] The bracket structure 10 is a component of the suspension structure 400 for connection to the wheel. The bracket structure 10 may be, but is not limited to, a steering knuckle. The bracket structure 10 is connected to the wheel. Specifically, the bracket structure 10 may be connected to a wheel hub bearing to connect to the wheel hub via the wheel hub bearing.

[0098] The swing arm structure 20 is a swingable link structure in the suspension structure 400, and it is connected to the vehicle body. The swing arm structure 20 may include a front swing arm, a rear swing arm, an upper swing arm, a lower swing arm, a torsion beam rear axle swing arm, etc.

[0099] At least a portion of the swing arm structure 20 is rotatably connected to the bracket structure 10, such that at least a portion of the swing arm structure 20 can swing relative to the bracket structure 10 to absorb the impact or vibration applied to the vehicle body from the ground.

[0100] Please refer to Figure 2 and other accompanying drawings. The suspension structure 400 provided in this embodiment includes a bracket structure 10, a swing arm structure 20, and fasteners 30. The bracket structure 10 includes a bracket body 11 and a plurality of first connecting structures 12, which are spaced apart and connected to the bracket body 11. The swing arm structure 20 includes a swing arm body 21 and a second connecting structure 22, which is connected to the swing arm body 21 and disposed between two adjacent first connecting structures 12. Fasteners 30 pass through the second connecting structure 22 and the two adjacent first connecting structures 12 to allow the bracket body 11 and the swing arm body 21 to be rotatably connected.

[0101] The bracket body 11 is the main structure of the bracket structure 10, and the bracket body 11 is used to connect the wheel. The first connecting structure 12 refers to the structure on the bracket structure 10 used to connect with the swing arm structure 20.

[0102] The swing arm body 21 is the main structure of the swing arm structure 20, and it is used to connect to the vehicle body. The second connecting structure 22 is a structure on the swing arm structure 20 used to connect to the bracket structure 10.

[0103] Fastener 30 is a component used to connect the first connecting structure 12 and the second connecting structure 22 to achieve a rotational connection between the bracket body 11 and the swing arm body 21. Fastener 30 can be, but is not limited to, bolts or rivets.

[0104] The fastener 30 is generally a shaft-shaped structure, having an axial direction X and a central axis L parallel to the axial direction X. The axial direction X of the fastener 30 is its length direction. Unless otherwise specified, the axial direction X of the fastener 30 may be simply referred to as axial X.

[0105] Specifically, at least a portion of the first connecting structures 12 are distributed at intervals along the axial direction X. Along the axial direction X, a second connecting structure 22 is disposed between two adjacent first connecting structures 12, such that the second connecting structure 22 is confined along the axial direction X between the two adjacent first connecting structures 12. Based on this, the first connecting structures 12 and the second connecting structure 22 are distributed along the axial direction X.

[0106] The fastener 30 passes through the second connecting structure 22 and the two adjacent first connecting structures 12, meaning that the fastener 30 passes through at least the second connecting structure 22 and the two adjacent first connecting structures 12. Specifically, the fastener 30 passes through the second connecting structure 22 and the two adjacent first connecting structures 12 along the axial direction X to connect the first connecting structures 12 and the second connecting structure 22 together, realizing a rotational connection between the support body 11 and the swing arm body 21. It can be understood that the support body 11 achieves a rotational connection with the swing arm body 21 through the fastener 30. Specifically, the swing arm body 21 can rotate relative to the support body 11 about the central axis L of the fastener 30.

[0107] As an example, as shown in Figure 2, the support structure 10 includes two of the aforementioned first connecting structures 12, which are spaced apart along the axial direction X and connected to the support body 11. A second connecting structure 22 is positioned between the two first connecting structures 12 along the axial direction X, and a fastener 30 passes through the second connecting structure 22 and the two first connecting structures 12 along the axial direction X.

[0108] The suspension structure 400 provided in this application embodiment includes a bracket structure 10 comprising a plurality of first connecting structures 12. A second connecting structure 22 of the swing arm structure 20 is disposed between two adjacent first connecting structures 12, and a fastener 30 passes through the second connecting structure 22 and the two adjacent first connecting structures 12, so that under the action of the fastener 30, the second connecting structure 22 and the two adjacent first connecting structures 12 are connected to realize the rotational connection between the bracket body 11 and the swing arm body 21. This can improve the connection stiffness between the first connecting structure 12 and the second connecting structure 22, thereby improving the yaw stiffness between the first connecting structure 12 and the second connecting structure 22, and thus improving the yaw stiffness between the bracket structure 10 and the swing arm structure 20, thereby improving the handling performance and user comfort of the vehicle 1000.

[0109] In some embodiments, when the fastener 30 is a bolt, the suspension structure 400 may also include a nut, and the nut and the fastener 30 are threaded together to connect the first connection structure 12 and the second connection structure 22.

[0110] In some embodiments, please refer to Figures 2 to 6 together with other figures. Figure 3 is a cross-sectional view along AA in Figure 2, and Figure 4 is an enlarged view of point B in Figure 3. Figure 5 is a partial cross-sectional view of a suspension structure 400 provided in other embodiments of this application, and Figure 6 is an enlarged view of point C in Figure 5. At least one first connecting structure 12 includes a first connecting seat 121 and a first rotating member 122. The first connecting seat 121 is connected to the bracket body 11 and has a first mounting hole 101 extending through the fastener 30 along the axial direction X. At least a portion of the first rotating member 122 is rotatably disposed within the first mounting hole 101, and the fastener 30 passes through the first rotating member 122.

[0111] The first connecting seat 121 is a component on the first connecting structure 12 used to connect the support body 11.

[0112] The first mounting hole 101 is a through hole that passes through the first connecting seat 121 along the axial direction X of the fastener 30. The first mounting hole 101 is used to mount the first rotating member 122.

[0113] The first rotating member 122 is a component that can rotate relative to the first connecting seat 121. At least a portion of the first rotating member 122 is disposed within the first mounting hole 101, and the first rotating member 122 can rotate about the central axis L of the fastener 30 relative to the first mounting hole 101.

[0114] The fastener 30 passes through the first rotating member 122. Specifically, the fastener 30 passes through the first rotating member 122 along the axial direction X and is fixedly connected to the first rotating member 122, thereby realizing that the fastener 30 passes through the first connecting structure 12 along the axial direction X.

[0115] By passing the fastener 30 through the first rotating member 122, the fastener 30 and the first rotating member 122 can be connected. In this way, the fastener 30 and the first rotating member 122 can rotate together around the central axis L of the fastener 30, so that the swing arm body 21 can swing relative to the bracket body 11 with the fastener 30 to absorb the impact or vibration applied to the vehicle body from the ground.

[0116] In some embodiments, as shown in Figures 2 to 6, each of two adjacent first connection structures 12 includes the first connecting seat 121 and the first rotating member 122.

[0117] In some other embodiments, at least one first connecting structure 12 may include a first connecting seat 121 but not a first rotating member 122, and a fastener 30 passes through a first mounting hole 101 to connect to the first connecting seat 121, as shown in Figures 7 to 10. For example, in two adjacent first connecting structures 12, one first connecting structure 12 includes a first connecting seat 121 and a first rotating member 122, and the other first connecting structure 12 includes a first connecting seat 121 but not a first rotating member 122.

[0118] In some embodiments, please refer to Figures 2 to 6 together with other figures. The first rotating member 122 includes a first ball head 1221, at least a portion of which is rotatably disposed within a first mounting hole 101, and a fastener 30 passes through the first ball head 1221.

[0119] The first ball head 1221 is at least a part of the first rotating member 122, and the first ball head 1221 is generally ball-shaped.

[0120] At least a portion of the first ball head 1221 is disposed within the first mounting hole 101, and the first ball head 1221 is rotatable relative to the first mounting hole 101 about the central axis L of the fastener 30.

[0121] The fastener 30 is inserted through the first ball head 1221 along the axial direction X, so that the fastener 30 and the first ball head 1221 are fixedly connected.

[0122] The first rotating member 122 includes a first ball head 1221, at least a portion of which is rotatably disposed within the first mounting hole 101. This facilitates the rotation of the first rotating member 122 relative to the first connecting seat 121, thereby absorbing impacts or vibrations applied to the wheel from the ground. Furthermore, the arrangement of the first ball head 1221 gives the first rotating member 122 greater rigidity, which helps to improve the connection rigidity between the first rotating member 122 and the first connecting seat 121, thus improving the yaw rigidity between the first rotating member 122 and the first connecting seat 121, and consequently, improving the yaw rigidity between the support structure 10 and the swing arm structure 20.

[0123] In some embodiments, please refer to Figures 2 to 6 together with other figures. The first rotating member 122 also includes a first pin portion 1222, the first pin portion 1222 and the first ball head 1221 are connected along the axial direction X, and the fastener 30 passes through the first pin portion 1222.

[0124] The first pin portion 1222 is a part of the structure of the first rotating member 122. The first pin portion 1222 is generally shaft-shaped.

[0125] The first pin shaft portion 1222 and the first ball head 1221 are distributed along the axial direction X and are connected. The fastener 30 passes through the first pin shaft portion 1222 and the first ball head 1221 along the axial direction X, so that the fastener 30 is fixedly connected to the first ball head 1221 and the first pin shaft portion 1222 respectively, and the fastener 30 passes through the first rotating member 122 along the axial direction X.

[0126] Based on the fact that the first rotating member 122 includes a first ball head 1221 and a first pin portion 1222, it can be understood that the first rotating member 122 is generally a ball pin.

[0127] By setting the first ball head 1221 and the first pin shaft portion 1222, the structural rigidity of the first rotating member 122 can be improved, which helps to improve the connection rigidity between the first rotating member 122 and the first connecting seat 121, thereby helping to improve the yaw rigidity between the first rotating member 122 and the first connecting seat 121, and thus improving the yaw rigidity between the support structure 10 and the swing arm structure 20.

[0128] It should be noted that the first pin can be radially limited to the first connecting seat 121 along the fastener 30, which helps to improve the connection rigidity of the first connecting structure 12 and the second connecting structure 22.

[0129] Unless otherwise specified, the radial direction Y of fastener 30 can be simply referred to as radial Y.

[0130] In some embodiments, at least a portion of the first pin may be located outside the first mounting hole 101.

[0131] In some embodiments, please refer to Figures 2 to 6 together with other figures. Along the axial direction X of the fastener 30, the opposite ends of the first ball head 1221 are connected to the first pin portion 1222.

[0132] This configuration can improve the balance performance of the first rotating member 122, thereby improving the stability of the relative rotation between the support structure 10 and the swing arm structure 20. This also helps to improve the yaw stiffness between the first rotating member 122 and the first connecting seat 121, thus improving the yaw stiffness between the support structure 10 and the swing arm structure 20.

[0133] In some embodiments, please refer to Figures 2 to 4 together with other figures. The first mounting hole 101 includes a first through hole section 1011 and a first recessed section 1012. The first through hole section 1011 extends through the first connecting seat 121 along the axial direction X, and the first recessed section 1012 communicates with the outer periphery of the first through hole section 1011. A portion of the first ball head 1221 is disposed within the first through hole section 1011, and another portion is confined within the first recessed section 1012 along the axial direction X.

[0134] The first through hole section 1011 and the first groove section 1012 are two parts of the first mounting hole 101. The first groove section 1012 surrounds the outer periphery of the first through hole section 1011, and the first groove section 1012 and the first through hole section 1011 are connected.

[0135] Specifically, the first ball head 1221 and the first groove segment 1012 are engaged in a radial Y-shaped fit along the fastener 30, such that another part of the first ball head 1221 is confined within the first groove segment 1012 along the axial X-shaped fit.

[0136] By limiting another portion of the first ball head 1221 within the first groove segment 1012 along the axial direction X, the first rotating member 122 can be stably limited to the first connecting seat 121 along the axial direction X, thereby achieving a stable connection between the first rotating member 122 and the first connecting seat 121. This helps to improve the connection stiffness between the first rotating member 122 and the first connecting seat 121, thereby improving the yaw stiffness between the support structure 10 and the swing arm structure 20.

[0137] Specifically, at least a portion of the first pin portion 1222 is disposed within the first through hole section 1011.

[0138] In some embodiments, as shown in Figures 2 to 4, the inner peripheral wall of the first groove segment 1012 matches the outer peripheral wall of the first ball head 1221, which facilitates the improvement of the connection stiffness between the first rotating member 122 and the first connecting seat 121, thereby improving the connection stiffness between the first connecting structure 12 and the second connecting structure 22, and thus improving the yaw stiffness between the support structure 10 and the swing arm structure 20.

[0139] In some embodiments, the first connecting seat 121 may include a first seat body, a first limiting member, and a second limiting member. The first seat body has a first mounting hole 101 extending through it along the axial direction X. The first limiting member and the second limiting member are spaced apart on the first seat body along the axial direction X. Furthermore, in the axial direction X, the portion of the first mounting hole 101 between the first limiting member and the second limiting member forms a first groove segment 1012, that is, the inner peripheral wall of the first seat body, the first limiting member, and the second limiting member surround and form the first groove segment 1012. At least a portion of the first ball head 1221 is positioned between the first limiting member and the second limiting member along the axial direction X.

[0140] In some embodiments, at least one of the first limiting member and the second limiting member is detachably connected to the first base. This configuration allows the first limiting member and the second limiting member to be connected to the first base after at least a portion of the first ball head 1221 has been installed in the first mounting hole 101, thus facilitating the installation of the first rotating member 122 on the first connecting seat 121.

[0141] In other embodiments, the inner peripheral wall of the first mounting hole 101 may be provided with a first connecting hole, and the first connecting hole extends through the first connecting seat 121 along the axial direction X. Based on the provision of the first connecting hole, the first connecting hole can be opened under the action of external force so that at least a portion of the first ball head 1221 is installed in the first mounting hole 101. Then, fasteners are used to pass through the opposite side walls of the first connecting hole, thereby narrowing the first connecting hole, thus narrowing the first mounting hole 101, so that the first ball head 1221 is securely installed in the first connecting seat 121.

[0142] In some embodiments, please refer to Figures 5 and 6 together, and in conjunction with other figures. The first connecting structure 12 further includes a first filler 124, which fills the space between the first connecting seat 121 and the first rotating member 122.

[0143] The first filler 124 refers to the filler material filled between the first connecting seat 121 and the first rotating member 122. The first filler 124 may be, but is not limited to, a rubber layer.

[0144] As an example, the first filler 124 can fill the space between the inner peripheral wall of the first mounting hole 101 and the outer peripheral wall of the first rotating member 122. Based on this, the first rotating member 122, the first filler 124, and the first connecting seat 121 can generally form a bushing.

[0145] The first filler 124 enables the first connecting structure 12 to effectively mitigate the impact or vibration transmitted from the ground to the vehicle body.

[0146] It should be further noted that when the first mounting hole 101 includes a first through hole section 1011 and a first groove section 1012, the first filler 124 can be disposed in the first mounting hole 101 to divide the first mounting hole 101 into the aforementioned first through hole section 1011 and first groove section 1012.

[0147] In some embodiments, please refer to Figures 5 and 6 together, and in conjunction with other figures. The first connecting structure 12 further includes a first sleeve 123, at least a portion of which is fitted into the first mounting hole 101. The first sleeve 123 is sleeved on the outer periphery of the first rotating member 122, and a first filler 124 fills the space between the first rotating member 122 and the first sleeve 123.

[0148] The first sleeve 123 is a component used to install the first rotating member 122 and the first filling member 124, and is generally sleeve-shaped.

[0149] The first connecting seat 121 is sleeved on the outer periphery of the first sleeve 123.

[0150] The first filler 124 is filled between the outer peripheral wall of the first rotating member 122 and the inner peripheral wall of the first sleeve 123. Alternatively, the first filler 124 can be filled between the outer peripheral wall of the first ball head 1221 and the inner peripheral wall of the first sleeve 123, or it can be filled between the outer peripheral wall of the first pin portion 1222 and the inner peripheral wall of the first sleeve 123.

[0151] By adopting the above technical solution, the first sleeve 123, the first filler 124, and the first rotating member 122 can roughly form a bushing. This allows the first rotating member 122 to rotate relative to the first sleeve 123, thereby enabling the swing arm body 21 to rotate relative to the bracket body 11, thus absorbing the impact or vibration applied to the vehicle body from the ground. Furthermore, the first filler 124 fills between the first sleeve 123 and the first rotating member 122, allowing the bushing formed by the first sleeve 123, the first filler 124, and the first rotating member 122 to be stably assembled. This gives the bushing a certain structural rigidity, thereby providing a certain degree of yaw stiffness between the swing arm structure 20 and the bracket structure 10.

[0152] It should be further noted that when the first mounting hole 101 includes a first through hole section 1011 and a first groove section 1012, the first filler 124 and the first sleeve 123 can be disposed in the first mounting hole 101 to divide the first mounting hole 101 into the aforementioned first through hole section 1011 and first groove section 1012.

[0153] In some embodiments, as shown in Figures 2 to 6, each of two adjacent first connecting structures 12 may include the first connecting seat 121 and the first rotating member 122, but does not include the first filling member 124 and the first sleeve 123, and the first rotating member 122 includes the first ball head 1221 and the first pin portion 1222.

[0154] In some other embodiments, of two adjacent first connecting structures 12, one first connecting structure 12 includes the aforementioned first connecting seat 121 and the aforementioned first rotating member 122, but does not include the aforementioned first filling member 124 and the first sleeve 123, and the first rotating member 122 includes the aforementioned first ball head 1221 and the first pin portion 1222. The other first connecting structure 12 includes the aforementioned first connecting seat 121, the aforementioned first rotating member 122, the aforementioned first sleeve 123, and the aforementioned first filling member 124.

[0155] In some embodiments, the first sleeve 123 and the first mounting hole 101 are interference-fitted. This arrangement allows the bushing consisting of the first sleeve 123, the first filler 124, and the first rotating member 122 to be securely assembled to the first connecting seat 121, which helps to improve the yaw stiffness between the swing arm structure 20 and the support structure 10.

[0156] In some embodiments, please refer to Figures 2 to 6 together with other accompanying drawings. The first rotating member 122 is a steel structure, an aluminum structure, or a nylon structure. Furthermore, the first sleeve 123 is a steel structure, an aluminum structure, or a nylon structure.

[0157] This configuration ensures that both the first rotating member 122 and the first sleeve 123 have greater structural rigidity, thereby improving the connection rigidity between the first rotating member 122 and the first connecting seat 121. This, in turn, helps to improve the yaw rigidity between the first rotating member 122 and the first connecting seat 121, and thus improves the yaw rigidity between the support structure 10 and the swing arm structure 20.

[0158] In some embodiments, please refer to Figures 2 to 6 together, and in conjunction with other figures. The first connecting seat 121 and the bracket body 11 are integrally connected structures.

[0159] As an example, both the first connecting seat 121 and the bracket body 11 are metal structures, and the first connecting seat 121 and the bracket body 11 can be integrally formed by stamping, die casting, casting or other methods.

[0160] This configuration can improve the connection strength between the first connecting seat 121 and the support body 11, thereby increasing the structural rigidity of the support structure 10, which in turn helps to improve the sway stiffness between the swing arm structure 20 and the support structure 10.

[0161] In some other embodiments, the first connecting seat 121 and the bracket body 11 can also be connected by welding, bolting, riveting or other methods.

[0162] In some embodiments, please refer to Figures 7 to 11 together, and in conjunction with other figures. Figure 7 is a partial perspective view of the suspension structure 400 provided in some embodiments of this application; Figure 8 is a cross-sectional view along DD in Figure 7; Figure 9 is an enlarged view of point E in Figure 8; Figure 10 is a partial cross-sectional view of the suspension structure 400 provided in some further embodiments of this application; Figure 11 is an enlarged view of point F in Figure 10. The second connecting structure 22 includes a second connecting seat 221 and a second rotating member 222. The second connecting seat 221 is connected to the swing arm body 21 and has a second mounting hole 201 extending through it along the axial direction X of the fastener 30. At least a portion of the second rotating member 222 is rotatably disposed within the second mounting hole 201, and the fastener 30 passes through the second rotating member 222.

[0163] The second connecting seat 221 is a component on the second connecting structure 22 used to connect the swing arm body 21.

[0164] The second mounting hole 201 is a through hole that passes through the second connecting seat 221 along the axial direction X of the fastener 30. The second mounting hole 201 is used to install the second rotating member 222.

[0165] The second rotating member 222 is a component that can rotate relative to the second connecting seat 221. At least a portion of the second rotating member 222 is disposed within the second mounting hole 201, and the second rotating member 222 can rotate about the central axis L of the fastener 30 relative to the second mounting hole 201.

[0166] The fastener 30 is inserted through the second rotating member 222, specifically the fastener 30 is inserted through the second rotating member 222 along the axial direction X, so that the fastener 30 and the second rotating member 222 are fixedly connected, thereby realizing that the fastener 30 is inserted through the second connecting structure 22 along the axial direction X.

[0167] The fastener 30 passes through the second rotating member 222, thus connecting the fastener 30 and the second rotating member 222. In this way, the fastener 30 can rotate together with the second rotating member 222 about the central axis L of the fastener 30, allowing the swing arm body 21 to rotate relative to the fastener 30, thereby swinging relative to the bracket body 11 to absorb the impact or vibration applied to the wheel from the ground.

[0168] In some embodiments, as shown in Figures 2 to 6, the second connection structure 22 may include the second connection seat 221 described above, but does not include the second rotating member 222 described above.

[0169] In some embodiments, please refer to Figures 7 to 11 together, and in conjunction with other figures. The second rotating member 222 includes a second ball head 2221 and a second pin portion 2222, which are connected axially along the X direction. At least a portion of the second ball head 2221 is rotatably disposed within the second mounting hole 201, and a fastener 30 passes through the second ball head 2221 and the second pin portion 2222.

[0170] The second ball head 2221 and the second pin portion 2222 are two parts of the second rotating member 222. The second ball head 2221 is generally ball-shaped, and the second pin portion 2222 is generally shaft-shaped.

[0171] At least a portion of the second ball head 2221 is disposed within the second mounting hole 201, and the second ball head 2221 is rotatable about the central axis L of the fastener 30 relative to the second mounting hole 201.

[0172] The second rotating member 222 includes a second ball head 2221 and a second pin portion 2222, such that the second rotating member 222 is approximately a ball pin.

[0173] The second pin portion 2222 and the second ball head 2221 are distributed along the axial direction X and are connected. The fastener 30 passes through the second pin portion 2222 and the second ball head 2221 along the axial direction X, so that the fastener 30 is fixedly connected to the second pin portion 2222 and the second ball head 2221 respectively, and the fastener 30 passes through the second rotating member 222 along the axial direction X to achieve a fixed connection between the fastener 30 and the second rotating member 222.

[0174] The second rotating member 222 includes a second ball head 2221, at least a portion of which is rotatably disposed within the second mounting hole 201. This facilitates the rotation of the second rotating member 222 relative to the second connecting seat 221, thereby absorbing impacts or vibrations applied to the wheel from the ground. Furthermore, the arrangement of the second ball head 2221 and the second pin portion 2222 gives the second rotating member 222 greater rigidity, which helps to improve the connection rigidity between the second rotating member 222 and the second connecting seat 221, thus improving the yaw rigidity between the second rotating member 222 and the second connecting seat 221, and consequently, improving the yaw rigidity between the support structure 10 and the swing arm structure 20.

[0175] It should be noted that the second pin can be radially limited to the second connecting seat 221 along the fastener 30, which helps to improve the connection rigidity of the first connecting structure 12 and the second connecting structure 22.

[0176] In some embodiments, at least a portion of the second pin may be located outside the second mounting hole 201.

[0177] In some embodiments, please refer to Figures 7 to 11 together with other figures. Along the axial direction X of the fastener 30, the two opposite ends of the second ball head 2221 are connected to the second pin portion 2222.

[0178] This configuration can improve the balance performance of the second rotating member 222, thereby improving the stability of the relative rotation between the support structure 10 and the swing arm structure 20. This also helps to improve the yaw stiffness between the second rotating member 222 and the second connecting seat 221, thus improving the yaw stiffness between the support structure 10 and the swing arm structure 20.

[0179] In some embodiments, please refer to Figures 7 to 9 together with other figures. The second mounting hole 201 includes a second through hole section 2011 and a second groove section 2012. The second through hole section 2011 passes through the second connecting seat 221 along the axial direction X, and the second groove section 2012 communicates with the outer periphery of the second through hole section 2011. A portion of the second ball head 2221 and at least a portion of the second pin portion 2222 are disposed in the second through hole section 2011, and another portion of the second ball head 2221 is confined within the second groove section 2012 along the axial direction X.

[0180] The second through hole section 2011 and the second groove section 2012 are two parts of the second mounting hole 201. The second groove section 2012 surrounds the outer periphery of the second through hole section 2011 and is connected to the second through hole section 2011.

[0181] Specifically, the second ball head 2221 and the second groove segment 2012 are radially Y-shaped and interlocked along the fastener 30, such that another part of the second ball head 2221 is limited to the second groove segment 2012 along the axial direction X.

[0182] By limiting another portion of the second ball head 2221 within the second groove section 2012 along the axial X, the second rotating member 222 can be stably limited to the second connecting seat 221 along the axial X, thereby achieving a stable connection between the second rotating member 222 and the second connecting seat 221. This helps to improve the connection stiffness between the second rotating member 222 and the second connecting seat 221, thereby increasing the yaw stiffness between the support structure 10 and the swing arm structure 20.

[0183] In some embodiments, as shown in Figures 7 to 9, the inner peripheral wall of the second groove segment 2012 and the outer peripheral wall of the second ball head 2221 are matched to improve the connection stiffness of the second rotating member 222 and the second connecting seat 221, thereby improving the connection stiffness between the first connecting structure 12 and the second connecting structure 22, and thus improving the sway stiffness between the support structure 10 and the swing arm structure 20.

[0184] In some embodiments, the second connecting seat 221 may include a second seat body, a third limiting member, and a fourth limiting member. The second seat body has a second mounting hole 201 extending through it along the axial direction X. The third and fourth limiting members are spaced apart on the second seat body along the axial direction X. Furthermore, in the axial direction X, the portion of the second mounting hole 201 between the third and fourth limiting members forms a second groove segment 2012; that is, the inner peripheral wall of the second seat body, the third limiting member, and the fourth limiting member surround and form the second groove segment 2012. At least a portion of the second ball head 2221 is positioned between the third and fourth limiting members along the axial direction X.

[0185] In some embodiments, at least one of the third and fourth limiting members is detachably connected to the second base. This configuration allows the third and fourth limiting members to be connected to the second base after at least a portion of the second ball head 2221 has been installed in the second mounting hole 201, thus facilitating the installation of the second rotating member 222 on the second connecting seat 221.

[0186] In other embodiments, the inner peripheral wall of the second mounting hole 201 may be provided with a second connecting hole, and the second connecting hole extends through the second connecting seat 221 along the axial direction X. Based on the provision of the second connecting hole, the second connecting hole can be opened under the action of external force so that at least a portion of the second ball head 2221 is installed in the second mounting hole 201. Then, fasteners are used to pass through the opposite side walls of the second connecting hole, thereby narrowing the second connecting hole, thus narrowing the second mounting hole 201, so that the second ball head 2221 is securely installed in the second connecting seat 221.

[0187] In some embodiments, please refer to Figures 10 and 11 together, and in conjunction with other figures. The second connection structure 22 further includes a second sleeve 223 and a second filler 224. At least a portion of the second sleeve 223 is fitted into the second mounting hole 201, and the second sleeve 223 is sleeved on the outer periphery of the second rotating member 222. The second filler 224 fills the space between the second sleeve 223 and the second rotating member 222.

[0188] The second sleeve 223 is a component used to install the second rotating member 222 and the second filling member 224, and is roughly sleeve-shaped.

[0189] The second connecting seat 221 is sleeved on the outer periphery of the second sleeve 223.

[0190] The second filler 224 is a filler material that fills the space between the second rotating member 222 and the second sleeve 223. The second filler 224 may be, but is not limited to, a rubber layer.

[0191] The second filler 224 is filled between the outer peripheral wall of the second rotating member 222 and the inner peripheral wall of the second sleeve 223. The second filler 224 can be filled between the outer peripheral wall of the second ball head 2221 and the inner peripheral wall of the second sleeve 223, or it can be filled between the outer peripheral wall of the second pin portion 2222 and the inner peripheral wall of the second sleeve 223.

[0192] By adopting the above technical solution, the second sleeve 223, the second filler 224, and the second rotating member 222 can roughly form a bushing. This allows the second rotating member 222 to rotate relative to the second sleeve 223, thereby enabling the swing arm body 21 to rotate relative to the bracket body 11, thus absorbing the impact or vibration applied to the vehicle body from the ground. Furthermore, the second filler 224 fills between the second sleeve 223 and the second rotating member 222, ensuring that the bushing formed by the second sleeve 223, the second filler 224, and the second rotating member 222 can be stably assembled. This gives the bushing a certain structural rigidity, thereby providing a certain degree of yaw stiffness between the swing arm structure 20 and the bracket structure 10.

[0193] It should be further noted that when the second mounting hole 201 includes the second through hole section 2011 and the second groove section 2012, the second filler 224 and the second sleeve 223 can be disposed in the second mounting hole 201 to divide the second mounting hole 201 into the aforementioned second through hole section 2011 and the second groove section 2012.

[0194] In some embodiments, the second sleeve 223 and the second mounting hole 201 are interference-fitted. This arrangement allows the bushing consisting of the second sleeve 223, the second filler 224, and the second rotating member 222 to be securely fitted to the second connecting seat 221, which helps to improve the yaw stiffness between the swing arm structure 20 and the support structure 10.

[0195] In some embodiments, as shown in Figures 7 to 9, the second connecting structure 22 may include the second connecting seat 221 and the second rotating member 222, but may not include the second filling member 224 and the second sleeve 223. Alternatively, as shown in Figures 10 and 11, the second connecting structure 22 may also include the second connecting seat 221, the second rotating member 222, the second filling member 224, and the second sleeve 223.

[0196] In some embodiments, the second rotating member 222 is a steel structure, an aluminum structure, or a nylon structure.

[0197] In some embodiments, the second sleeve 223 is a steel structure, an aluminum structure, or a nylon structure.

[0198] In some embodiments, the second connecting seat 221 and the swing arm body 21 are integrally connected. As an example, both the second connecting seat 221 and the swing arm body 21 are metal structures, and the second connecting seat 221 and the swing arm body 21 can be integrally formed by stamping, die casting, casting or other methods.

[0199] In some other embodiments, the second connecting seat 221 and the swing arm body 21 can also be connected by welding, bolting, riveting or other methods.

[0200] In some embodiments, please refer to Figures 2 through 11 together, and in conjunction with other figures. Along the axial direction X of the fastener 30, the second connecting structure 22 abuts against two adjacent first connecting structures 12.

[0201] As an example, as shown in Figures 2 to 6, when the first connecting structure 12 includes a first rotating member 122 and the second connecting structure 22 does not include a second rotating member 222, the first rotating member 122 abuts against the second connecting seat 221 along the axial direction X.

[0202] As an example, as shown in Figures 7 to 11, when the first connecting structure 12 does not include the first rotating member 122, while the second connecting structure 22 includes the second rotating member 222, the second rotating member 222 abuts against the first connecting seat 121 along the axial direction X.

[0203] As an example, in the case where the first connecting structure 12 includes a first rotating member 122 and the second connecting structure 22 includes a second rotating member 222, the first rotating member 122 abuts against the second rotating member 222 along the axial direction X.

[0204] This arrangement causes the first connecting structure 12 and the second connecting structure 22 to abut against each other along the axial direction X, which helps to improve the connection stiffness between the first connecting structure 12 and the second connecting structure 22, thereby improving the yaw stiffness between the first connecting structure 12 and the second connecting structure 22, which in turn improves the yaw stiffness between the swing arm body 21 and the support body 11.

[0205] In some embodiments, the swing arm structure 20 includes a plurality of second connection structures 22, which are spaced apart and connected to the swing arm body 21, and a first connection structure 12 is disposed between two adjacent second connection structures 22.

[0206] This configuration allows the first connecting structure 12 to be positioned between two adjacent second connecting structures 22 along the axial X-axis, and the second connecting structure 22 to be positioned between two adjacent first connecting structures 12 along the axial X-axis. This can significantly improve the connection stiffness between the first connecting structure 12 and the second connecting structure 22, thereby improving the yaw stiffness between the first connecting structure 12 and the second connecting structure 22. This, in turn, can improve the yaw stiffness between the swing arm body 21 and the support body 11.

[0207] In some embodiments, please refer to Figures 2 and 7 together, and in conjunction with other figures. The bracket body 11 is provided with a third mounting hole 102 extending through the axial direction X of the fastener 30, the third mounting hole 102 being used to connect the wheel.

[0208] The third mounting hole 102 is a through hole that runs through the bracket body 11 along the axial direction X, and is used to connect the wheel. The third mounting hole 102 and the first connecting seat 121 are distributed at intervals.

[0209] As an example, the third mounting hole 102 is used to connect the hub bearing, thereby indirectly connecting it to the wheel hub.

[0210] This configuration ensures that the axis of rotation of the swing arm body 21 relative to the bracket body 11 (i.e., the central axis L of the fastener 30) is approximately parallel to the wheel axle. Thus, the suspension structure 400 provided in this embodiment can improve the yaw stiffness between the swing arm body 21 and the bracket body 11, based on the fact that the swing arm body 21 can rotate relative to the bracket body 11 about the central axis L parallel to the wheel axle.

[0211] In some embodiments, please refer to Figures 2 and 7 together, and in conjunction with other figures. The swing arm body 21 includes a rear swing arm. Alternatively, as shown in Figure 12, which is a partial perspective view of a suspension structure 400 provided in some other embodiments of this application, the swing arm body 21 includes a torsion beam rear axle swing arm.

[0212] This configuration can improve the yaw stiffness between the rear swing arm and the support body 11; or, it can improve the yaw stiffness between the rear swing arm and the support body 11 of the torsion beam rear axle.

[0213] Please refer to Figures 1 and 2 together, and in conjunction with other accompanying drawings. The vehicle 1000 provided in this embodiment includes a suspension structure 400. The suspension structure 400 in this embodiment is the same as the suspension structure 400 in the previous embodiment; please refer to the relevant description of the suspension structure 400 in the previous embodiment for details, which will not be repeated here.

[0214] The vehicle 1000 provided in this application embodiment, by adopting the suspension structure 400 mentioned above, can improve the yaw stiffness between the support structure 10 and the swing arm structure 20, thereby improving the handling performance and user comfort of the vehicle 1000.

[0215] As one embodiment of this application, as shown in Figures 2 to 6, the suspension structure 400 includes a bracket structure 10, a swing arm structure 20, and a fastener 30. The bracket structure 10 includes a bracket body 11 and two first connecting structures 12, which are spaced apart from each other along the axial direction X of the fastener 30. Each first connecting structure 12 includes a first connecting seat 121 and a first rotating member 122. The first connecting seat 121 is connected to the bracket body 11 and has a first mounting hole 101 extending through it along the axial direction X of the fastener 30. The first rotating member 122 includes a first ball head 1221 and a first pin portion 1222 connected along the axial direction X of the fastener 30. At least a portion of the first ball head 1221 is disposed in the first mounting hole 101, and the first rotating member 122 is rotatable relative to the first connecting seat 121. The swing arm structure 20 includes a swing arm body 21 and a second connecting structure 22, which includes a second connecting seat 221 connected to the swing arm body 21. Fastener 30 passes through the first ball head 1221 and the first pin shaft portion 1222 of the two first connecting structures 12 along the axial direction X, and passes through the second connecting seat 221, so as to rotatably connect the bracket body 11 and the swing arm body 21.

[0216] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A suspension structure, wherein, include: A support structure, comprising a support body and a plurality of first connection structures spaced apart and connected to the support body; A swing arm structure includes a swing arm body and a second connecting structure connected to the swing arm body, wherein the second connecting structure is disposed between two adjacent first connecting structures; Fasteners are inserted into the second connecting structure and two adjacent first connecting structures to enable the bracket body and the swing arm body to be rotatably connected.

2. The suspension structure according to claim 1, wherein, At least one of the first connecting structures includes a first connecting seat and a first rotating member; the first connecting seat is connected to the bracket body and has a first mounting hole extending through the fastener along its axial direction; at least a portion of the first rotating member is rotatably disposed within the first mounting hole, and the fastener passes through the first rotating member.

3. The suspension structure according to claim 2, wherein, The first rotating member includes a first ball head, at least a portion of which is rotatably disposed within the first mounting hole, and the fastener passes through the first ball head.

4. The suspension structure according to claim 3, wherein, The first rotating component further includes a first pin portion, the first pin portion and the first ball head are connected along the axial direction, and the fastener passes through the first pin portion.

5. The suspension structure according to claim 4, wherein, Along the axial direction, the first pin portion is connected to both opposite ends of the first ball head.

6. The suspension structure according to any one of claims 3-5, wherein, The first mounting hole includes a first through hole section and a first groove section. The first through hole section passes through the first connecting seat along the axial direction, and the first groove section communicates with the outer periphery of the first through hole section. A portion of the first ball head is disposed in the first through hole section, and the other portion is confined in the first groove section along the axial direction.

7. The suspension structure according to any one of claims 2-5, wherein, At least one of the first connecting structures further includes a first filler material filling the space between the first connecting seat and the first rotating member.

8. The suspension structure according to claim 7, wherein, At least one of the first connecting structures further includes a first sleeve, at least a portion of which is fitted into the first mounting hole, the first sleeve being sleeved around the outer periphery of the first rotating member, and the first filler filling the space between the first rotating member and the first sleeve.

9. The suspension structure according to claim 8, wherein, The first rotating component and the first sleeve are made of steel, aluminum, or nylon.

10. The suspension structure according to any one of claims 2-8, wherein, The first connecting seat and the bracket body are an integral connection structure.

11. The suspension structure according to any one of claims 1-10, wherein, The second connection structure includes a second connecting seat and a second rotating member; the second connecting seat is connected to the swing arm body and has a second mounting hole extending through the fastener along its axial direction; at least a portion of the second rotating member is rotatably disposed within the second mounting hole, and the fastener passes through the second rotating member.

12. The suspension structure according to claim 11, wherein, The second rotating member includes a second ball head and a second pin portion, the second pin portion and the second ball head being connected along the axial direction; at least a portion of the second ball head is rotatably disposed in the second mounting hole, and the fastener passes through the second ball head and the second pin portion.

13. The suspension structure according to claim 12, wherein, Along the axial direction, the second ball head is connected to the second pin at both opposite ends.

14. The suspension structure according to claim 12 or 13, wherein, The second mounting hole includes a second through hole section and a second groove section. The second through hole section passes through the second connecting seat along the axial direction, and the second groove section communicates with the outer periphery of the second through hole section. A portion of the second ball head and at least a portion of the second pin shaft are disposed in the second through hole section, and another portion of the second ball head is confined in the second groove section along the axial direction.

15. The suspension structure according to any one of claims 11-13, wherein, The second connection structure also includes: The second sleeve is at least partially assembled in the second mounting hole, and the second sleeve is sleeved on the outer periphery of the second rotating member; The second filler is filled between the second sleeve and the second rotating member.

16. The suspension structure according to any one of claims 1-15, wherein, Along the axial direction of the fastener, the second connecting structure abuts against two adjacent first connecting structures.

17. The suspension structure according to any one of claims 1-16, wherein, The swing arm structure includes a plurality of second connecting structures spaced apart from the swing arm body, wherein the first connecting structure is disposed between two adjacent second connecting structures.

18. The suspension structure according to any one of claims 1-17, wherein, The bracket body has a third mounting hole extending through the axial direction of the fastener, and the third mounting hole is used to connect the wheel.

19. The suspension structure according to any one of claims 1-18, wherein, The swing arm body includes a rear swing arm or a torsion beam rear axle swing arm.

20. A vehicle, wherein, Includes the suspension structure according to any one of claims 1-19.

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