Suspension structure and vehicle

Abstract

A suspension structure (400), comprising a swing arm structure (10), a bracket structure (20) and a fastener (30), wherein the swing arm structure (10) comprises a swing arm body (11) and a first connection structure (12) connected to the swing arm body (11); the bracket structure (20) comprises a bracket body (21) and a second connection structure (22) connected to the bracket body (21); the fastener (30) is arranged in the first connection structure (12) and the second connection structure (22) in a penetrating manner, such that the swing arm body (11) is rotationally connected to the bracket body (21); and the first connection structure (12) comprises a first bearing (121) connected to the swing arm body (11), the fastener (30) being arranged in the first bearing (121) in a penetrating manner, and / or the second connection structure (22) comprises a second bearing (221) connected to the bracket body (21), the fastener (30) being arranged in the second bearing (221) in a penetrating manner. Further disclosed is a vehicle (1000). In the suspension structure (400), the connection stiffness and yaw stiffness between the first connection structure (12) and the second connection structure (22) are improved, so that the yaw stiffness between the bracket structure (20) and the swing arm structure (10) is improved.

Description

Suspension structure and vehicle

[0001] Cross-references

[0002] This application claims priority to Chinese patent application No. 202422079465.2, 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 small, which affects the vehicle's handling performance and user comfort. 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 swing arm structure includes a swing arm body and a first connecting structure connected to the swing arm body;

[0010] A support structure, including a support body and a second connection structure connected to the support body;

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

[0012] The first connection structure includes a first bearing connected to the swing arm body, and fasteners passing through the first bearing; and / or, the second connection structure includes a second bearing connected to the bracket body, and fasteners passing through the second bearing.

[0013] The suspension structure provided in this application embodiment includes a first connecting structure of the swing arm structure comprising a first bearing connected to the swing arm body of the swing arm structure, and a fastener passing through the first bearing and a second connecting structure of the bracket structure; and / or, the second connecting structure of the bracket structure comprises a second bearing connected to the bracket body of the bracket structure, and a fastener passing through the second bearing and the first connecting structure of the swing arm structure. Thus, the fastener passes through at least one bearing to achieve a rotational connection between the bracket body and the swing arm body. The bearing has high stiffness, 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 consequently, improving the yaw stiffness between the bracket structure and the swing arm structure.

[0014] In some embodiments, the first bearing includes a first inner ring and a first outer ring sleeved around the outer periphery of the first inner ring. The first inner ring is rotatable relative to the first outer ring. The first outer ring is connected to the rocker arm body, and fasteners pass through the first inner ring.

[0015] This configuration can increase the connection stiffness between the first and second connecting structures, thereby increasing the yaw stiffness between them. This, in turn, helps to improve the yaw stiffness between the support structure and the swing arm structure, thus enhancing the vehicle's handling performance and user comfort.

[0016] In some embodiments, the first connection structure further includes a first connecting seat connected to the swing arm body, the first connecting seat being sleeved on the outer periphery of the first bearing.

[0017] By connecting the first connecting seat to the swing arm body and sleeved on the outer periphery of the first bearing, the connection stiffness and yaw stiffness between the first bearing and the swing arm body can be improved, which helps to improve the yaw stiffness between the first connecting structure and the second connecting structure, thereby helping to improve the yaw stiffness between the support structure and the swing arm structure.

[0018] In some embodiments, the first connecting seat is provided with a first mounting hole, and the first bearing is interference-fitted with the first mounting hole.

[0019] By interfering with the first bearing and the first mounting hole, the first bearing can be firmly assembled into the first connecting seat, which helps to improve the connection stiffness and yaw stiffness between the first bearing and the first connecting seat, thereby improving the yaw stiffness between the swing arm structure and the support structure.

[0020] In some embodiments, the first connecting seat and the swing arm body are integrally connected structures.

[0021] This configuration can improve the connection strength between the first connecting seat and the swing arm body, thereby increasing the structural stiffness of the swing arm structure and also helping to improve the yaw stiffness between the swing arm structure and the support structure.

[0022] In some embodiments, the second bearing includes a second inner ring and a second outer ring sleeved on the outer periphery of the second inner ring. The second inner ring is rotatable relative to the second outer ring. The second outer ring is connected to the bracket body, and fasteners pass through the second inner ring.

[0023] This configuration can increase the connection stiffness between the first and second connecting structures, thereby increasing the yaw stiffness between them. This, in turn, helps to improve the yaw stiffness between the support structure and the swing arm structure, thus enhancing the vehicle's handling performance and user comfort.

[0024] In some embodiments, the second connection structure further includes a second connecting seat connected to the support body, the second connecting seat being sleeved on the outer periphery of the second bearing.

[0025] By connecting the second connecting seat to the bracket body and sleeved on the outer periphery of the second bearing, the connection stiffness and yaw stiffness between the second bearing and the bracket body can be improved, which helps to improve the yaw stiffness of the first connecting structure and the second connecting structure, thereby helping to improve the yaw stiffness between the bracket structure and the swing arm structure.

[0026] In some embodiments, the second connecting seat is provided with a second mounting hole, and the second bearing is interference-fitted with the second mounting hole.

[0027] By interfering with the second bearing and the second mounting hole, the second bearing can be firmly assembled into the second connecting seat, which helps to improve the connection stiffness and yaw stiffness between the second bearing and the second connecting seat, thereby improving the yaw stiffness between the swing arm structure and the support structure.

[0028] In some embodiments, the second connector and the bracket body are integrally connected.

[0029] This configuration can improve the connection strength between the second 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.

[0030] In some embodiments, the first bearing is a metal structure; and / or, the second bearing is a metal structure.

[0031] This configuration helps to improve the connection stiffness and yaw stiffness of the first and second connecting structures, thereby helping to improve the yaw stiffness between the support structure and the swing arm structure.

[0032] In some embodiments, the first connection structure includes a first bearing connected to the swing arm body, and fasteners passing through the first bearing; the second connection structure includes a third connection seat connected to the bracket body, and fasteners passing through the third connection seat.

[0033] By adopting the above technical solution, the installation of the first bearing can improve the yaw stiffness between the support structure and the swing arm structure. Furthermore, the fasteners passing through the third connecting seat can simplify the structure of the support structure.

[0034] In some embodiments, the second connection structure further includes a first rotating member, and a third connecting seat is provided with a third mounting hole through the axial direction of the fastener; at least a portion of the first rotating member is rotatably disposed in the third mounting hole, and the fastener passes through the first rotating member.

[0035] 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 structure to swing relative to the third connecting seat and the bracket body with the fastener and the first rotating member, so as to absorb the impact or vibration applied to the vehicle body from the ground.

[0036] In some embodiments, the first rotating member includes a first ball head, at least a portion of which is rotatably disposed within a third mounting hole, and a fastener passes through the first ball head.

[0037] The first rotating member includes a first ball head, at least a portion of which is rotatably disposed within a third mounting hole. This facilitates the rotation of the first rotating member relative to the third connecting seat, thereby absorbing impacts or vibrations applied to the wheel from the ground. Furthermore, the placement of the first ball head gives the first rotating member greater rigidity, which helps improve the connection rigidity between the first rotating member and the third connecting seat, thus improving the yaw rigidity between them, and consequently, enhancing the yaw rigidity between the support structure and the swing arm structure.

[0038] 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.

[0039] By setting the first ball head and the first pin shaft, the structural rigidity of the first rotating component can be improved, which helps to improve the connection rigidity and yaw rigidity between the first rotating component and the third connecting seat, thereby improving the yaw rigidity between the support structure and the swing arm structure.

[0040] In some embodiments, along the axial direction, both opposite ends of the first ball head are connected to a first pin portion.

[0041] 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. It also helps to increase the yaw stiffness between the first rotating component and the third connecting seat, thus improving the yaw stiffness between the support structure and the swing arm structure.

[0042] In some embodiments, the third mounting hole includes a first through hole section and a first groove section. The first through hole section extends through the third connector 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 within the first through hole section, and another portion is axially confined within the first groove section.

[0043] 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 third connecting seat, thus achieving a stable connection between the first rotating member and the third connecting seat. This helps to improve the connection stiffness and yaw stiffness between the first rotating member and the third connecting seat, thereby increasing the yaw stiffness between the support structure and the swing arm structure.

[0044] In some embodiments, the second connection structure further includes a first sleeve, at least a portion of which is fitted into a third mounting hole and is sleeved on the outer periphery of the first rotating member.

[0045] By setting the first sleeve, the first sleeve and the first rotating component can roughly form a bushing structure. In this way, the first rotating component can rotate together with the fastener relative to the first sleeve and the third connecting seat.

[0046] In some embodiments, the second connection structure further includes a first filler material filled between the first rotating member and the first sleeve.

[0047] By filling the space between the first sleeve and the first rotating component with the first filler, the bushing structure consisting of the first sleeve, the first filler, and the first rotating component can be stably assembled, thus giving the bushing structure a certain structural rigidity, thereby giving the swing arm structure and the support structure a certain yaw rigidity.

[0048] In some embodiments, the second connection structure includes a second bearing connected to the bracket body, and fasteners passing through the second bearing; the first connection structure includes a fourth connection seat connected to the swing arm body, and fasteners passing through the fourth connection seat.

[0049] By adopting the above technical solution, the inclusion of a second bearing can improve the yaw stiffness between the support structure and the swing arm structure. Furthermore, the fasteners inserted into the fourth connecting seat simplify the structure of the swing arm.

[0050] In some embodiments, the first connecting structure further includes a second rotating member, and a fourth connecting seat is provided with a fourth mounting hole through the axial direction of the fastener; at least a portion of the second rotating member is rotatably disposed in the fourth mounting hole, and the fastener passes through the second rotating member.

[0051] The fastener and the second rotating member are connected by passing the fastener through it. In this way, the fastener and the second rotating member can rotate together around the central axis of the fastener, allowing the swing arm body and the fourth connecting seat to swing relative to the fastener, the second rotating member, and the bracket structure to absorb the impact or vibration applied to the vehicle body from the ground.

[0052] 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 fourth mounting hole, and a fastener passes through the second ball head and the second pin portion.

[0053] The second rotating member includes a second ball head, at least a portion of which is rotatably disposed within a fourth mounting hole. This facilitates rotation of the second rotating member relative to the fourth 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 improve the connection rigidity and yaw rigidity between the second rotating member and the fourth connecting seat, thus enhancing the yaw rigidity between the support structure and the swing arm structure.

[0054] In some embodiments, along the axial direction, both opposite ends of the second ball head are connected to a second pin portion.

[0055] 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 increase the yaw stiffness between the second rotating component and the fourth connecting seat, thus improving the yaw stiffness between the support structure and the swing arm structure.

[0056] In some embodiments, the fourth mounting hole includes a second through hole section and a second groove section. The second through hole section extends axially through the fourth connector, and the second groove section communicates with the outer periphery of the second through hole section. A portion of the second ball head is disposed within the second through hole section, and another portion is axially confined within the second groove section.

[0057] By axially confining another portion of the second ball head within the second groove section, the second rotating member can be stably confined axially onto the fourth connecting seat, thus achieving a secure connection between the second rotating member and the fourth connecting seat. This helps improve the connection stiffness and yaw stiffness between the second rotating member and the fourth connecting seat, thereby increasing the yaw stiffness between the support structure and the swing arm structure.

[0058] In some embodiments, the first connection structure further includes:

[0059] The second sleeve is at least partially assembled in the fourth mounting hole, and the second sleeve is sleeved on the outer periphery of the second rotating part;

[0060] The second filler is placed between the second sleeve and the second rotating component.

[0061] By adopting the above technical solution, the second rotating component can rotate relative to the second sleeve and the fourth connecting seat together with the fastener. By filling the space between the second sleeve and the second rotating component with the second filler, the bushing structure formed by the second sleeve, the second filler, and the second rotating component can be stably assembled, thus giving the bushing structure a certain structural rigidity, thereby giving the swing arm structure and the support structure a certain yaw stiffness.

[0062] In some embodiments, the support structure includes a plurality of second connection structures spaced apart from the support body, a first connection structure being located between two adjacent second connection structures, and fasteners passing through at least two adjacent second connection structures;

[0063] And / or, the swing arm body includes a plurality of first connection structures spaced apart from each other on the swing arm body, a second connection structure being located between two adjacent first connection structures, and fasteners passing through at least two adjacent first connection structures.

[0064] This configuration can improve the connection stiffness and yaw stiffness between the first and second connecting structures, thereby improving the yaw stiffness between the support structure and the swing arm structure.

[0065] In some embodiments, along the axial direction of the fastener, the end of the first connecting structure near the second connecting structure abuts against the end of the second connecting structure near the first connecting structure.

[0066] This configuration can improve the yaw stiffness between the first and second connecting structures, thereby increasing the yaw stiffness between the support structure and the swing arm structure.

[0067] In some embodiments, the bracket body has a fifth mounting hole extending through the axial direction of the fastener, and the fifth mounting hole is used to connect the wheel.

[0068] This configuration ensures that the axis of rotation of the swing arm body relative to the bracket body (i.e., the central axis of the aforementioned fastener) is approximately parallel to the wheel axle. Thus, the suspension structure provided in this embodiment can improve the yaw stiffness between the swing arm body and the bracket body, given that the swing arm body can rotate relative to the bracket body about a central axis parallel to the wheel axle.

[0069] In some embodiments, the swing arm body includes a rear swing arm or a torsion beam rear axle swing arm.

[0070] 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.

[0071] Secondly, embodiments of this application provide a vehicle including a suspension structure.

[0072] 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.

[0073] 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

[0074] 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.

[0075] Figure 1 is a schematic diagram of a vehicle provided in some embodiments of this application;

[0076] Figure 2 is a perspective structural diagram of the suspension structure provided in some embodiments of this application;

[0077] Figure 3 is a cross-sectional view along AA in Figure 2;

[0078] Figure 4 is an enlarged view of point B in Figure 3;

[0079] Figure 5 is a cross-sectional view of a suspension structure provided in some other embodiments of this application;

[0080] Figure 6 is an enlarged view of point C in Figure 5;

[0081] Figure 7 is a three-dimensional structural diagram of the suspension structure provided in some embodiments of this application;

[0082] Figure 8 is a cross-sectional view along DD in Figure 7;

[0083] Figure 9 is an enlarged view of point E in Figure 8;

[0084] Figure 10 is a perspective structural diagram of the suspension structure provided in some embodiments of this application;

[0085] Figure 11 is a cross-sectional view of Figure 10 along FF;

[0086] Figure 12 is an enlarged view of point G in Figure 11;

[0087] Figure 13 is a three-dimensional structural diagram of the suspension structure provided in some embodiments of this application.

[0088] In the figures, the following labels are used: 1000-Vehicle; 100-Battery; 200-Controller; 300-Powertrain; 400-Suspension Structure; 10-Swing Arm Structure; 101-First Mounting Hole; 102-Fourth Mounting Hole; 1021-Second Through Hole Section; 1022-Second Recess Section; 11-Swing Arm Body; 12-First Connecting Structure; 121-First Bearing; 1211-First Inner Ring; 1212-First Outer Ring; 122-First Connecting Seat; 123-Fourth Connecting Seat; 124-Second Rotating Component; 1241-Second Ball Head; 1242-Second Pin Shaft; 125-Second Sleeve; 126-Second Filler; 20-Bracket Structure; 201-Second Mounting Hole; 202-Third Mounting Hole; 20-Second Mounting Hole; 20 ... Mounting hole; 2021-First through hole section; 2022-First groove section; 203-Fifth mounting hole; 21-Bracket body; 22-Second connecting structure; 221-Second bearing; 2211-Second inner ring; 2212-Second outer ring; 222-Second connecting seat; 223-Third connecting seat; 224-First rotating component; 2241-First ball head; 2242-First pin shaft; 225-First sleeve; 226-First filler; 30-Fastener; 40-Nut; L-Central shaft; X-Axial; Y-Radial. Detailed Implementation

[0089] 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.

[0090] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] Based on the above considerations, embodiments of this application provide a suspension structure and a vehicle. The first connecting structure of the swing arm structure includes a first bearing connected to the swing arm body of the swing arm structure. A fastener passes through the first bearing and the second connecting structure of the bracket structure. Alternatively, the second connecting structure of the bracket structure includes a second bearing connected to the bracket body of the bracket structure. A fastener passes through the second bearing and the first connecting structure of the swing arm structure. Thus, the fastener passes through at least one bearing to achieve a rotational connection between the bracket body and the swing arm body. The bearing has high stiffness, 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 consequently, improving the yaw stiffness between the bracket structure and the swing arm structure.

[0101] In some embodiments, the suspension structure described in this application is applied to a vehicle.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] As an example, multiple battery cells can be fixed together to form a battery module using cable ties or similar methods.

[0112] As an example, multiple battery cells can also be fixed together to form a battery module using end plates, side plates, etc.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] The suspension structure 400 may include a swing arm structure 10 and a support structure 20.

[0117] The bracket structure 20 is a component of the suspension structure 400 used for connection to the wheel. The bracket structure 20 may be, but is not limited to, a steering knuckle. The bracket structure 20 is connected to the wheel. Specifically, the bracket structure 20 may be connected to a wheel hub bearing to connect to the wheel hub via the wheel hub bearing.

[0118] The swing arm structure 10 is a swingable link structure in the suspension structure 400, and it is connected to the vehicle body. The swing arm structure 10 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.

[0119] At least a portion of the swing arm structure 10 is rotatably connected to the bracket structure 20, such that at least a portion of the swing arm structure 10 can swing relative to the bracket structure 20 to absorb the impact or vibration applied to the vehicle body from the ground.

[0120] Please refer to Figures 2 through 6, and other accompanying drawings. Figure 3 is a cross-sectional view along line AA of Figure 2, and Figure 4 is an enlarged view of point B in Figure 3. Figure 5 is a cross-sectional view of the suspension structure 400 provided in some other embodiments of this application, and Figure 6 is an enlarged view of point C in Figure 5. The suspension structure 400 provided in this application includes a swing arm structure 10, a bracket structure 20, and fasteners 30. The swing arm structure 10 includes a swing arm body 11 and a first connecting structure 12, the first connecting structure 12 being connected to the swing arm body 11. The bracket structure 20 includes a bracket body 21 and a second connecting structure 22, the second connecting structure 22 being connected to the bracket body 21. Fasteners 30 pass through the first connecting structure 12 and the second connecting structure 22 to allow the swing arm body 11 and the bracket body 21 to be rotatably connected.

[0121] The swing arm body 11 is the main structure of the swing arm structure 10, and it is used to connect to the vehicle body. The first connecting structure 12 is a structure on the swing arm structure 10 used to connect to the bracket structure 20.

[0122] The bracket body 21 is the main structure of the bracket structure 20, and it is used to connect the wheel. The second connecting structure 22 refers to the structure on the bracket structure 20 used to connect with the swing arm structure 10.

[0123] 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 21 and the swing arm body 11. Fastener 30 can be, but is not limited to, bolts or rivets.

[0124] 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.

[0125] Fastener 30 passes through the first connecting structure 12 and the second connecting structure 22 along the axial direction X to connect the first connecting structure 12 and the second connecting structure 22 together, thereby realizing a rotational connection between the support body 21 and the swing arm body 11. Understandably, the support body 21 achieves a rotational connection with the swing arm body 11 through the fastener 30. Specifically, the swing arm body 11 can rotate relative to the support body 21 about the central axis L of the fastener 30.

[0126] In some possible designs, as shown in Figures 2 to 4, and in conjunction with other figures, the first connection structure 12 includes a first bearing 121 connected to the swing arm body 11, and a fastener 30 passing through the first bearing 121.

[0127] The first bearing 121 is a bearing structure. The first bearing 121 is connected to the swing arm body 11, and the fastener 30 passes through the first bearing 121, so that the swing arm body 11 and the second connecting structure 22 are rotatably connected through the first bearing 121 and the fastener 30, thereby realizing the rotatable connection between the bracket body 21 and the swing arm body 11.

[0128] In some possible designs, as shown in Figures 5 and 6, and in conjunction with other figures, the second connection structure 22 includes a second bearing 221 connected to the bracket body 21, with fasteners 30 passing through the second bearing 221.

[0129] The second bearing 221 is a bearing structure. It is connected to the bracket body 21 through the second bearing 221, and the fastener 30 passes through the second bearing 221, so that the bracket body 21 and the first connecting structure 12 are rotatably connected through the second bearing 221 and the fastener 30, thereby realizing the rotatable connection between the bracket body 21 and the swing arm body 11.

[0130] It should be noted that when the first connecting structure 12 includes the first bearing 121 and the second connecting structure 22 includes the second bearing 221, the fastener 30 can pass through the first bearing 121 and the second bearing 221.

[0131] The suspension structure 400 provided in this application embodiment includes a first connecting structure 12 of the swing arm structure 10 comprising a first bearing 121 connected to the swing arm body 11 of the swing arm structure 10, with a fastener 30 passing through the first bearing 121 and a second connecting structure 22 of the bracket structure 20; and / or, the second connecting structure 22 of the bracket structure 20 comprises a second bearing 221 connected to the bracket body 21 of the bracket structure 20, with the fastener 30 passing through the second bearing 221 and the first connecting structure 12 of the swing arm structure 10. Thus, the fastener 30 passes through at least one bearing to achieve a rotational connection between the bracket body 21 and the swing arm body 11. The bearing has high stiffness, 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, and consequently improving the yaw stiffness between the bracket structure 20 and the swing arm structure 10, thus improving the handling performance and user comfort of the vehicle 1000.

[0132] In some embodiments, when the fastener 30 is a bolt, the suspension structure 400 may also include a nut 40, and the nut 40 and the fastener 30 are threaded together to connect the first connection structure 12 and the second connection structure 22.

[0133] In some embodiments, please refer to Figures 2 to 4 together with other figures. The first bearing 121 includes a first outer ring 1212 and a first inner ring 1211. The first outer ring 1212 is connected to the swing arm body 11 and is sleeved on the outer periphery of the first inner ring 1211. The first inner ring 1211 is rotatable relative to the first outer ring 1212, and the fastener 30 passes through the first inner ring 1211. Based on this, the swing arm body 11, the first connecting seat 122, and the first outer ring 1212 can rotate relative to the first inner ring 1211, the fastener 30, and the support structure 20, thereby allowing the swing arm body 11 to rotate about the central axis L of the fastener 30 relative to the support body 21.

[0134] The first outer ring 1212 is connected to the swing arm body 11, specifically the first outer ring 1212 and the swing arm body 11 are fixedly connected.

[0135] The fastener 30 passes through the first inner ring 1211 to be fixedly connected to the first inner ring 1211.

[0136] Understandably, a ball bearing or similar structure may also be provided between the first inner ring 1211 and the first outer ring 1212.

[0137] This configuration can increase the connection stiffness between the first connecting structure 12 and the second connecting structure 22, thereby increasing the yaw stiffness between the first connecting structure 12 and the second connecting structure 22. This, in turn, helps to improve the yaw stiffness between the support structure 20 and the swing arm structure 10, thus improving the handling performance and user comfort of the vehicle 1000.

[0138] In some embodiments, please refer to Figures 2 to 4 together, and in conjunction with other figures. The first connecting structure 12 further includes a first connecting seat 122, which is connected to the swing arm body 11 and sleeved on the outer periphery of the first bearing 121.

[0139] The first connecting seat 122 is a component on the first connecting structure 12 used to connect the swing arm body 11.

[0140] Specifically, the first connecting seat 122 is generally sleeve-shaped and is sleeved on the outer periphery of the first outer ring 1212. The first connecting seat 122 is connected to the swing arm body 11, specifically, the first connecting seat 122 and the swing arm body 11 are fixedly connected.

[0141] The first connecting seat 122 is connected to the swing arm body 11 and sleeved on the outer periphery of the first bearing 121. This can improve the connection stiffness and yaw stiffness between the first bearing 121 and the swing arm body 11, thereby helping to improve the yaw stiffness between the first connecting structure 12 and the second connecting structure 22, and thus helping to improve the yaw stiffness between the support structure 20 and the swing arm structure 10.

[0142] In some embodiments, please refer to Figures 2 to 4 together, and in conjunction with other figures. The first connecting seat 122 is provided with a first mounting hole 101, and the first bearing 121 is interference-fitted with the first mounting hole 101.

[0143] The first mounting hole 101 is a through hole that passes through the first connecting seat 122 along the axial direction X of the fastener 30. The first mounting hole 101 is used to install the first bearing 121.

[0144] Specifically, the first mounting hole 101 is provided such that the first connecting seat 122 is approximately sleeve-shaped. The first outer ring 1212 of the first bearing 121 is disposed in the first mounting hole 101, and the outer peripheral wall of the first outer ring 1212 and the inner peripheral wall of the first mounting hole 101 abut against each other so that the first bearing 121 and the first mounting hole 101 are in an interference fit.

[0145] By interfering with the first bearing 121 and the first mounting hole 101, the first bearing 121 can be firmly assembled to the first connecting seat 122, which helps to improve the connection stiffness and yaw stiffness between the first bearing 121 and the first connecting seat 122, thereby improving the yaw stiffness between the swing arm structure 10 and the bracket structure 20.

[0146] In some embodiments, the first connecting seat 122 and the swing arm body 11 are integrally connected structures.

[0147] As an example, both the first connecting seat 122 and the swing arm body 11 are metal structures, and the first connecting seat 122 and the swing arm body 11 can be integrally formed by stamping, die casting, casting or other methods.

[0148] This configuration can improve the connection strength between the first connecting seat 122 and the swing arm body 11, thereby increasing the structural stiffness of the swing arm structure 10, which in turn helps to improve the yaw stiffness between the swing arm structure 10 and the support structure 20.

[0149] In some other embodiments, the first connecting seat 122 and the swing arm body 11 can also be connected by welding, bolting, riveting or other methods.

[0150] The first connecting seat 122 and the swing arm body 11 can constitute the swing arm mentioned above.

[0151] In some embodiments, please refer to Figures 5 and 6 together, and in conjunction with other figures. The second bearing 221 includes a second outer ring 2212 and a second inner ring 2211. The second outer ring 2212 is connected to the bracket body 21 and is sleeved on the outer periphery of the second inner ring 2211. The second inner ring 2211 is rotatable relative to the second outer ring 2212, and the fastener 30 passes through the second inner ring 2211. Based on this, the fastener 30, the bracket structure 20, and the second inner ring 2211 can rotate relative to the second outer ring 2212, the second connecting seat 222, and the swing arm body 11, thereby allowing the swing arm body 11 to rotate about the central axis L of the fastener 30 relative to the bracket body 21.

[0152] The second outer ring 2212 is connected to the bracket body 21, specifically the second outer ring 2212 and the bracket body 21 are fixedly connected.

[0153] The fastener 30 passes through the second inner ring 2211 to be fixedly connected to the second inner ring 2211.

[0154] Understandably, a ball bearing or similar structure may also be provided between the second inner ring 2211 and the second outer ring 2212.

[0155] This configuration can increase the connection stiffness between the first connecting structure 12 and the second connecting structure 22, thereby increasing the yaw stiffness between the first connecting structure 12 and the second connecting structure 22. This, in turn, helps to improve the yaw stiffness between the support structure 20 and the swing arm structure 10, thus improving the handling performance and user comfort of the vehicle 1000.

[0156] In some embodiments, please refer to Figures 5 and 6 together, and in conjunction with other figures. The second connection structure 22 further includes a second connecting seat 222, which is connected to the bracket body 21 and sleeved on the outer periphery of the second bearing 221.

[0157] The second connecting seat 222 is a component on the second connecting structure 22 used to connect the support body 21.

[0158] Specifically, the second connecting seat 222 is generally sleeve-shaped and is sleeved on the outer periphery of the second outer ring 2212. The second connecting seat 222 is connected to the bracket body 21, specifically, the second connecting seat 222 and the bracket body 21 are fixedly connected.

[0159] The second connecting seat 222 is connected to the bracket body 21 and sleeved on the outer periphery of the second bearing 221. This can improve the connection stiffness and yaw stiffness between the second bearing 221 and the bracket body 21, thereby helping to improve the yaw stiffness of the first connecting structure 12 and the second connecting structure 22, and thus helping to improve the yaw stiffness between the bracket structure 20 and the swing arm structure 10.

[0160] In some embodiments, please refer to Figures 5 and 6 together, and in conjunction with other accompanying drawings. The second connecting seat 222 is provided with a second mounting hole 201, and the second bearing 221 is interference-fitted with the second mounting hole 201.

[0161] The second mounting hole 201 is a through hole that passes through the second connecting seat 222 along the axial direction X of the fastener 30. The second mounting hole 201 is used to install the second bearing 221.

[0162] Specifically, the second mounting hole 201 is provided such that the second connecting seat 222 is approximately sleeve-shaped. The second outer ring 2212 of the second bearing 221 is disposed in the second mounting hole 201, and the outer peripheral wall of the second outer ring 2212 abuts against the inner peripheral wall of the second mounting hole 201 so that the second bearing 221 and the second mounting hole 201 are in an interference fit.

[0163] By interfering with the second bearing 221 and the second mounting hole 201, the second bearing 221 can be firmly assembled to the second connecting seat 222, which helps to improve the connection stiffness and yaw stiffness between the second bearing 221 and the second connecting seat 222, thereby improving the yaw stiffness between the swing arm structure 10 and the support structure 20.

[0164] In some embodiments, the second connector 222 and the bracket body 21 are integrally connected.

[0165] As an example, both the second connecting seat 222 and the bracket body 21 are metal structures, and the second connecting seat 222 and the bracket body 21 can be integrally formed by stamping, die casting, casting or other methods.

[0166] This configuration can improve the connection strength between the second connecting seat 222 and the support body 21, thereby increasing the structural stiffness of the support structure 20, which in turn helps to improve the yaw stiffness between the swing arm structure 10 and the support structure 20.

[0167] In some other embodiments, the second connecting seat 222 and the bracket body 21 can also be connected by welding, bolting, riveting or other methods.

[0168] The second connecting seat 222 and the bracket body 21 can constitute the bracket mentioned above.

[0169] In some embodiments, the first bearing 121 is a metal structure.

[0170] Understandably, at least a portion of the material of the first bearing 121 is metal, which may be, but is not limited to, steel. As an example, the first bearing 121 is a steel bearing.

[0171] This gives the first bearing 121 a large structural rigidity.

[0172] In some embodiments, the second bearing 221 is a metal structure.

[0173] Understandably, at least a portion of the material of the second bearing 221 is metal, which may be, but is not limited to, steel. As an example, the second bearing 221 is a steel bearing.

[0174] This gives the second bearing 221 greater structural rigidity.

[0175] This configuration helps to improve the connection stiffness and yaw stiffness of the first connecting structure 12 and the second connecting structure 22, thereby helping to improve the yaw stiffness between the support structure 20 and the swing arm structure 10.

[0176] In some embodiments, please refer to Figures 2 to 4 together with other figures. The first connecting structure 12 includes a first bearing 121, which is connected to the swing arm body 11, and a fastener 30 passes through the first bearing 121. The second connecting structure 22 includes a third connecting seat 223, which is connected to the bracket body 21, and a fastener 30 passes through the third connecting seat 223.

[0177] The third connecting seat 223 is a component on the second connecting structure 22 used for connecting with the support body 21.

[0178] The third connecting seat 223 can be integrally connected to the bracket body 21 by means of stamping, die casting, or casting, or it can be separately connected to the bracket body 21 by means of welding or bolt fixing.

[0179] Fastener 30 is inserted through the third connecting seat 223 and can be fixedly connected to the third connecting seat 223 or rotatably connected to the third connecting seat 223.

[0180] By adopting the above technical solution, the arrangement of the first bearing 121 can improve the yaw stiffness between the support structure 20 and the swing arm structure 10. Furthermore, the fastener 30 passing through the third connecting seat 223 simplifies the structure of the support structure 20.

[0181] The third connecting seat 223 and the bracket body 21 can constitute the bracket mentioned above.

[0182] In some embodiments, please refer to Figures 7 to 9 together with other accompanying drawings. Figure 7 is a 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, and Figure 9 is an enlarged view of point E in Figure 8. The second connecting structure 22 further includes a first rotating member 224, and a third connecting seat 223 has a third mounting hole 202 extending along the axial direction X of the fastener 30. At least a portion of the first rotating member 224 is rotatably disposed within the third mounting hole 202, and the fastener 30 passes through the first rotating member 224.

[0183] The third mounting hole 202 is a through hole that passes through the third connecting seat 223 along the axial direction X of the fastener 30. The third mounting hole 202 is used to install the first rotating member 224.

[0184] The first rotating member 224 is a component that can rotate relative to the third connecting seat 223. At least a portion of the first rotating member 224 is disposed within the third mounting hole 202, and the first rotating member 224 can rotate about the central axis L of the fastener 30 relative to the third mounting hole 202.

[0185] The fastener 30 passes through the first rotating member 224, specifically, the fastener 30 passes through the first rotating member 224 along the axial direction X, thereby realizing that the fastener 30 passes through the third connecting seat 223 along the axial direction X. Wherein, the fastener 30 passes through the first rotating member 224 to be fixedly connected with the first rotating member 224.

[0186] By passing the fastener 30 through the first rotating member 224, the fastener 30 and the first rotating member 224 can be connected. In this way, the fastener 30 and the first rotating member 224 can rotate together around the central axis L of the fastener 30, so that the swing arm structure 10 can swing relative to the third connecting seat 223 and the bracket body 21 with the fastener 30 and the first rotating member 224 to absorb the impact or vibration applied to the vehicle body from the ground.

[0187] In some embodiments, please refer to Figures 10 to 12 together with other figures. Figure 10 is a perspective view of the suspension structure 400 provided in some embodiments of this application, Figure 11 is a cross-sectional view along FF in Figure 10, and Figure 12 is an enlarged view of point G in Figure 11. The first rotating member 224 includes a first ball head 2241, at least a portion of which is rotatably disposed within a third mounting hole 202, and a fastener 30 passes through the first ball head 2241.

[0188] The first ball head 2241 is at least a part of the first rotating member 224, and the first ball head 2241 is generally ball-shaped.

[0189] At least a portion of the first ball head 2241 is disposed within the third mounting hole 202, and the first ball head 2241 is rotatable relative to the third mounting hole 202 about the central axis L of the fastener 30.

[0190] Fastener 30 is inserted through the first ball head 2241 along the axial direction X to be fixedly connected to the first ball head 2241.

[0191] The first rotating member 224 includes a first ball head 2241, at least a portion of which is rotatably disposed within the third mounting hole 202. This facilitates the rotation of the first rotating member 224 relative to the third connecting seat 223, thereby absorbing impacts or vibrations applied to the wheel from the ground. Furthermore, the arrangement of the first ball head 2241 gives the first rotating member 224 greater rigidity, which helps to improve the connection rigidity between the first rotating member 224 and the third connecting seat 223, thus improving the yaw rigidity between them, and consequently, improving the yaw rigidity between the support structure 20 and the swing arm structure 10.

[0192] In some embodiments, please refer to Figures 10 to 12 together, and in conjunction with other figures. The first rotating member 224 also includes a first pin portion 2242, the first pin portion 2242 and the first ball head 2241 are connected along the axial direction X, and the fastener 30 passes through the first pin portion 2242.

[0193] The first pin portion 2242 is a part of the structure of the first rotating member 224. The first pin portion 2242 is generally shaft-shaped.

[0194] The first pin portion 2242 and the first ball head 2241 are distributed along the axial direction X and are connected. The fastener 30 passes through the first pin portion 2242 and the first ball head 2241 along the axial direction X, so that the fastener 30 passes through the first rotating member 224 along the axial direction X.

[0195] Based on the fact that the first rotating member 224 includes a first ball head 2241 and a first pin portion 2242, it can be understood that the first rotating member 224 is generally a ball pin.

[0196] By setting the first ball head 2241 and the first pin shaft portion 2242, the structural rigidity of the first rotating member 224 can be improved, which helps to improve the connection rigidity and yaw rigidity between the first rotating member 224 and the third connecting seat 223, thereby improving the yaw rigidity between the support structure 20 and the swing arm structure 10.

[0197] It should be noted that the first pin can be radially limited to the first connecting seat 122 along the fastener 30, which helps to improve the connection rigidity of the first connecting structure 12 and the second connecting structure 22.

[0198] Unless otherwise specified, the radial direction Y of fastener 30 can be simply referred to as radial Y.

[0199] In some embodiments, at least a portion of the first pin may be located outside the third mounting hole 202.

[0200] In some embodiments, please refer to Figures 10 to 12 together, and in conjunction with other figures. Along the axial direction X, both opposite ends of the first ball head 2241 are connected to a first pin portion 2242.

[0201] This configuration can improve the balance performance of the first rotating member 224, thereby improving the stability of the relative rotation between the support structure 20 and the swing arm structure 10. This also helps to improve the yaw stiffness between the first rotating member 224 and the third connecting seat 223, thus improving the yaw stiffness between the support structure 20 and the swing arm structure 10.

[0202] In some embodiments, please refer to Figures 10 to 12 together, and in conjunction with other figures. The third mounting hole 202 includes a first through hole section 2021 and a first recessed section 2022. The first through hole section 2021 extends through the third connecting seat 223 along the axial direction X, and the first recessed section 2022 communicates with the outer periphery of the first through hole section 2021. A portion of the first ball head 2241 is disposed within the first through hole section 2021, and another portion is confined within the first recessed section 2022 along the axial direction X.

[0203] The first through-hole section 2021 and the first groove section 2022 are two parts of the third mounting hole 202. The first groove section 2022 surrounds the outer periphery of the first through-hole section 2021, and the first groove section 2022 and the first through-hole section 2021 are connected.

[0204] Specifically, the first ball head 2241 and the first groove segment 2022 are engaged in a radial Y-shaped fit along the fastener 30, such that another part of the first ball head 2241 is confined within the first groove segment 2022 along the axial X-shaped fit.

[0205] By limiting another portion of the first ball head 2241 within the first groove segment 2022 along the axial X, the first rotating member 224 can be stably limited to the third connecting seat 223 along the axial X, thereby achieving a stable connection between the first rotating member 224 and the third connecting seat 223. This helps to improve the connection stiffness and yaw stiffness between the first rotating member 224 and the third connecting seat 223, thus improving the yaw stiffness between the support structure 20 and the swing arm structure 10.

[0206] In some embodiments, at least a portion of the first pin portion 2242 may be disposed within the first through hole section 2021.

[0207] In some embodiments, please refer to Figures 7 to 9 together with other figures. The second connection structure 22 further includes a first sleeve 225, at least a portion of which is fitted into the third mounting hole 202, and the first sleeve 225 is sleeved on the outer periphery of the first rotating member 224.

[0208] The first sleeve 225 is a component used to install the first rotating part 224, and is roughly sleeve-shaped.

[0209] At least a portion of the first sleeve 225 is fitted into the third mounting hole 202, such that the third connector 223 is sleeved on the outer periphery of the first sleeve 225.

[0210] Understandably, in the radial direction Y, the first sleeve 225 is located between the inner peripheral wall of the third connecting seat 223 and the outer peripheral wall of the first rotating member 224.

[0211] The first sleeve 225 is provided so that the first sleeve 225 and the first rotating member 224 can roughly form a bushing structure. In this way, the first rotating member 224 can rotate together with the fastener 30 relative to the first sleeve 225 and the third connecting seat 223.

[0212] It should be further explained that when the third mounting hole 202 includes the first through hole section 2021 and the first groove section 2022, the first sleeve 225 can divide the third mounting hole 202 into the aforementioned first through hole section 2021 and first groove section 2022 within the third mounting hole 202.

[0213] In some embodiments, please refer to Figures 10 to 12 together with other figures. The second connection structure 22 further includes a first filler 226, which fills the space between the first rotating member 224 and the first sleeve 225.

[0214] The first filler 226 refers to the filler material filled between the first sleeve 225 and the first rotating member 224. The first filler 226 may be, but is not limited to, a rubber layer.

[0215] As an example, the first filler 226 can be filled between the inner peripheral wall of the first sleeve 225 and the outer peripheral wall of the first rotating member 224. Based on this, the first rotating member 224, the first filler 226, and the first sleeve 225 can generally form a bushing structure.

[0216] The first filler 226 is filled between the first sleeve 225 and the first rotating member 224, so that the bushing structure composed of the first sleeve 225, the first filler 226 and the first rotating member 224 can be stably assembled. This gives the bushing structure a certain structural rigidity, thereby giving the swing arm structure 10 and the support structure 20 a certain yaw rigidity.

[0217] It should be further explained that when the third mounting hole 202 includes the first through hole section 2021 and the first groove section 2022, the first sleeve 225 and the first filler 226 can be placed inside the third mounting hole 202 to divide the third mounting hole 202 into the aforementioned first through hole section 2021 and first groove section 2022.

[0218] In some embodiments, the first rotating member 224 is a steel structure, an aluminum structure, or a nylon structure. Furthermore, the first sleeve 225 is a steel structure, an aluminum structure, or a nylon structure.

[0219] This configuration ensures that both the first rotating component 224 and the first sleeve 225 have greater structural rigidity, thereby improving the connection rigidity and yaw rigidity between the first rotating component 224 and the third connecting seat 223, and thus improving the yaw rigidity between the support structure 20 and the swing arm structure 10.

[0220] In some embodiments, please refer to Figures 5 and 6 together, and in conjunction with other figures. The second connecting structure 22 includes a second bearing 221, which is connected to the bracket body 21, and a fastener 30 passes through the second bearing 221. The first connecting structure 12 includes a fourth connecting seat 123, which is connected to the swing arm body 11, and a fastener 30 passes through the fourth connecting seat 123.

[0221] The fourth connecting seat 123 is a component on the first connecting structure 12 used for connecting with the swing arm body 11.

[0222] The fourth connecting seat 123 can be integrally connected to the swing arm body 11 by means of stamping, die casting, or casting, or it can be separately connected to the swing arm body 11 by means of welding or bolt fixing.

[0223] Fastener 30 is inserted through the fourth connector 123 and can be fixedly connected to the fourth connector 123 or rotatably connected to the fourth connector 123.

[0224] By adopting the above technical solution, the second bearing 221 can improve the yaw stiffness between the support structure 20 and the swing arm structure 10. Furthermore, the fastener 30 passing through the fourth connecting seat 123 simplifies the structure of the swing arm structure 10.

[0225] The fourth connecting seat 123 and the swing arm body 11 can constitute the aforementioned bracket.

[0226] 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 second rotating member 124, and a fourth connecting seat 123 is provided with a fourth mounting hole 102 extending along the axial direction X of the fastener 30. At least a portion of the second rotating member 124 is rotatably disposed within the fourth mounting hole 102, and the fastener 30 passes through the second rotating member 124.

[0227] The fourth mounting hole 102 is a through hole that passes through the fourth connecting seat 123 along the axial direction X of the fastener 30. The fourth mounting hole 102 is used to install the second rotating member 124.

[0228] The second rotating member 124 is a component that can rotate relative to the fourth connecting seat 123. At least a portion of the second rotating member 124 is disposed within the fourth mounting hole 102, and the second rotating member 124 can rotate about the central axis L of the fastener 30 relative to the fourth mounting hole 102.

[0229] The fastener 30 passes through the second rotating member 124, specifically, the fastener 30 passes through the second rotating member 124 along the axial direction X, thereby realizing that the fastener 30 passes through the fourth connecting seat 123 along the axial direction X. Wherein, the fastener 30 passes through the second rotating member 124 to be fixedly connected with the second rotating member 124.

[0230] The fastener 30 passes through the second rotating member 124, thus connecting the fastener 30 and the second rotating member 124. In this way, the fastener 30 can rotate together with the second rotating member 124 about the central axis L of the fastener 30, allowing the swing arm body 11 and the fourth connecting seat 123 to swing relative to the fastener 30, the second rotating member 124, and the bracket structure 20, thereby absorbing impacts or vibrations applied to the vehicle body from the ground.

[0231] In some embodiments, please refer to Figures 5 and 6 together, and in conjunction with other figures. The second rotating member 124 includes a second ball head 1241 and a second pin portion 1242, which are connected axially along the X direction. At least a portion of the second ball head 1241 is rotatably disposed within a fourth mounting hole 102, and a fastener 30 passes through the second ball head 1241 and the second pin portion 1242.

[0232] The second ball head 1241 and the second pin portion 1242 are two parts of the second rotating member 124. The second ball head 1241 is generally ball-shaped, and the second pin portion 1242 is generally shaft-shaped.

[0233] At least a portion of the second ball head 1241 is disposed within the fourth mounting hole 102, and the second ball head 1241 is rotatable relative to the fourth mounting hole 102 about the central axis L of the fastener 30.

[0234] Based on the fact that the second rotating member 124 includes a second ball head 1241 and a second pin portion 1242, it can be understood that the second rotating member 124 is generally a ball pin.

[0235] The second pin portion 1242 and the second ball head 1241 are distributed along the axial direction X and are connected. The fastener 30 passes through the second pin portion 1242 and the second ball head 1241 along the axial direction X, so that the fastener 30 passes through the second rotating member 124 along the axial direction X.

[0236] The fastener 30 passes through the second ball head 1241 and the second pin shaft portion 1242 along the axial direction X, so that the fastener 30 is fixedly connected to the second ball head 1241 and the second pin shaft portion 1242.

[0237] The second rotating member 124 includes a second ball head 1241, at least a portion of which is rotatably disposed within the fourth mounting hole 102. This facilitates the rotation of the second rotating member 124 relative to the fourth connecting seat 123, thereby absorbing impacts or vibrations applied to the wheel from the ground. Furthermore, the arrangement of the second ball head 1241 and the second pin portion 1242 gives the second rotating member 124 greater rigidity, which helps to improve the connection rigidity and yaw rigidity between the second rotating member 124 and the fourth connecting seat 123, thereby improving the yaw rigidity between the support structure 20 and the swing arm structure 10.

[0238] It should be noted that the second pin can be radially limited to the fourth connecting seat 123 along the fastener 30, which helps to improve the connection rigidity of the first connecting structure 12 and the second connecting structure 22.

[0239] In some embodiments, at least a portion of the second pin may be located outside the fourth mounting hole 102.

[0240] In some embodiments, please refer to Figures 5 and 6 together, and in conjunction with other figures. Along the axial direction X, the two opposite ends of the second ball head 1241 are connected to the second pin portion 1242.

[0241] This configuration can improve the balance performance of the second rotating member 124, thereby improving the stability of the relative rotation between the support structure 20 and the swing arm structure 10. This also helps to improve the yaw stiffness between the second rotating member 124 and the fourth connecting seat 123, thus improving the yaw stiffness between the support structure 20 and the swing arm structure 10.

[0242] In some embodiments, please refer to Figures 5 and 6 together, and in conjunction with other figures. The fourth mounting hole 102 includes a second through-hole section 1021 and a second recessed section 1022. The second through-hole section 1021 extends through the fourth connecting seat 123 along the axial direction X, and the second recessed section 1022 communicates with the outer periphery of the second through-hole section 1021. A portion of the second ball head 1241 is disposed within the second through-hole section 1021, and the other portion of the second ball head 1241 is confined within the second recessed section 1022 along the axial direction X.

[0243] The second through-hole section 1021 and the second groove section 1022 are two parts of the fourth mounting hole 102. The second groove section 1022 surrounds the outer periphery of the second through-hole section 1021 and the second groove section 1022 and the second through-hole section 1021 are connected.

[0244] Specifically, the second ball head 1241 and the second groove segment 1022 are radially Y-shaped and interlocked along the fastener 30, such that another part of the second ball head 1241 is axially X-shaped and confined within the second groove segment 1022.

[0245] By limiting another portion of the second ball head 1241 within the second groove section 1022 along the axial X, the second rotating member 124 can be stably limited to the fourth connecting seat 123 along the axial X, thereby achieving a stable connection between the second rotating member 124 and the fourth connecting seat 123. This helps to improve the connection stiffness and yaw stiffness between the second rotating member 124 and the fourth connecting seat 123, thereby improving the yaw stiffness between the support structure 20 and the swing arm structure 10.

[0246] In some embodiments, at least a portion of the second pin portion 1242 may also be disposed within the second through hole section 1021.

[0247] 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 second sleeve 125 and a second filler 126. At least a portion of the second sleeve 125 is fitted into the fourth mounting hole 102, and the second sleeve 125 is sleeved on the outer periphery of the second rotating member 124. The second filler 126 fills the space between the second sleeve 125 and the second rotating member 124.

[0248] The second sleeve 125 is a component used to install the second rotating member 124, and is generally sleeve-shaped.

[0249] At least a portion of the second sleeve 125 is fitted into the fourth mounting hole 102, such that the fourth connector 123 is sleeved on the outer periphery of the second sleeve 125.

[0250] Understandably, in the radial direction Y, the second sleeve 125 is located between the inner peripheral wall of the fourth connecting seat 123 and the outer peripheral wall of the second rotating member 124.

[0251] The second filler 126 refers to the filler material filled between the second sleeve 125 and the second rotating member 124. The second filler 126 may be, but is not limited to, a rubber layer.

[0252] As an example, the second filler 126 can be filled between the inner peripheral wall of the second sleeve 125 and the outer peripheral wall of the second rotating member 124. Based on this, the second rotating member 124, the second filler 126, and the second sleeve 125 can generally form a bushing structure.

[0253] By adopting the above technical solution, the second rotating member 124 can rotate together with the fastener 30 relative to the second sleeve 125 and the fourth connecting seat 123. The second filler 126 fills the space between the second sleeve 125 and the second rotating member 124, allowing the bushing structure formed by the second sleeve 125, the second filler 126, and the second rotating member 124 to be stably assembled. This gives the bushing structure a certain structural rigidity, thereby providing a certain degree of yaw stiffness between the swing arm structure 10 and the support structure 20.

[0254] It should be further explained that when the fourth mounting hole 102 includes the second through hole section 1021 and the second groove section 1022, the second sleeve 125 and the second filler 126 can be placed in the fourth mounting hole 102 to divide the fourth mounting hole 102 into the aforementioned second through hole section 1021 and second groove section 1022.

[0255] In some embodiments, the second rotating member 124 is a steel structure, an aluminum structure, or a nylon structure. Similarly, the second sleeve 125 is a steel structure, an aluminum structure, or a nylon structure.

[0256] This configuration ensures that both the second rotating member 124 and the second sleeve 125 have greater structural rigidity, thereby improving the connection rigidity and yaw rigidity between the second rotating member 124 and the fourth connecting seat 123, and thus improving the yaw rigidity between the support structure 20 and the swing arm structure 10.

[0257] In some embodiments, please refer to Figures 2 to 4, Figures 10 to 12, and other accompanying drawings. The support structure 20 includes a plurality of second connecting structures 22, which are spaced apart and connected to the support body 21. A first connecting structure 12 is located between two adjacent second connecting structures 22, and a fastener 30 passes through at least two adjacent second connecting structures 22.

[0258] Specifically, at least some of the second connecting structures 22 are distributed at intervals along the axial direction X. Along the axial direction X, the first connecting structure 12 is confined between two adjacent second connecting structures 22. Based on this, the first connecting structure 12 and the second connecting structure 22 are distributed along the axial direction X.

[0259] Fastener 30 passes through the first connecting structure 12 and two adjacent second connecting structures 22 along the axial direction X to connect the first connecting structure 12 and the second connecting structure 22 together, thereby realizing the rotational connection between the bracket body 21 and the swing arm body 11.

[0260] As an example, the support structure 20 includes two of the aforementioned second connecting structures 22, which are spaced apart along the axial direction X and connected to the support body 21. A first connecting structure 12 is positioned between the two second connecting structures 22 along the axial direction X, and a fastener 30 passes through the first connecting structure 12 and the two second connecting structures 22 along the axial direction X.

[0261] The first connecting structure 12 is positioned between two adjacent second connecting structures 22 along the axial direction X, and the fastener 30 passes through the first connecting structure 12 and the two adjacent second connecting structures 22 to connect the first connecting structure 12 and the two adjacent second connecting structures 22 together, thereby realizing the rotational connection between the swing arm body 11 and the bracket body 21.

[0262] In some embodiments, the swing arm body 11 includes a plurality of first connecting structures 12, which are spaced apart and connected to the swing arm body 11. A second connecting structure 22 is located between two adjacent first connecting structures 12, and a fastener 30 passes through at least two adjacent first connecting structures 12.

[0263] The second connecting structure 22 is positioned between two adjacent first connecting structures 12 along the axial direction X, and the fastener 30 passes through the second connecting structure 22 and the two adjacent first connecting structures 12 to connect the second connecting structure 22 and the two adjacent first connecting structures 12 together, thereby realizing the rotational connection between the swing arm body 11 and the bracket body 21.

[0264] This configuration can improve the connection stiffness and yaw stiffness between the first connecting structure 12 and the second connecting structure 22, thereby improving the yaw stiffness between the support structure 20 and the swing arm structure 10.

[0265] In some embodiments, please refer to Figures 2 through 10 together, and in conjunction with other figures. Along the axial direction X of the fastener 30, the end of the first connecting structure 12 near the second connecting structure 22 abuts against the end of the second connecting structure 22 near the first connecting structure 12.

[0266] Understandably, the first connecting structure 12 abuts against the second connecting structure 22 along the axial direction X.

[0267] This configuration can improve the yaw stiffness between the first connecting structure 12 and the second connecting structure 22, thereby improving the yaw stiffness between the support structure 20 and the swing arm structure 10.

[0268] In some embodiments, please refer to Figures 2, 7, and 10 together, and in conjunction with other figures. The bracket body 21 is provided with a fifth mounting hole 203 extending through the axial direction X of the fastener 30, and the fifth mounting hole 203 is used to connect the wheel.

[0269] The fifth mounting hole 203 is a through hole that passes through the bracket body 21 along the axial direction X, and is used to connect the wheel. The fifth mounting hole 203 and the second connecting structure 22 are distributed at intervals.

[0270] As an example, the fifth mounting hole 203 is used to connect the hub bearing, thereby indirectly connecting it to the wheel hub.

[0271] This configuration ensures that the axis of rotation of the swing arm body 11 relative to the bracket body 21 (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 11 and the bracket body 21, based on the fact that the swing arm body 11 can rotate relative to the bracket body 21 about the central axis L parallel to the wheel axle.

[0272] In some embodiments, please refer to Figures 2, 7, and 10 together, and in conjunction with other figures. The swing arm body 11 includes a rear swing arm. Alternatively, as shown in Figure 13, which is a perspective structural diagram of a suspension structure 400 provided in some embodiments of this application, the swing arm body 11 includes a torsion beam rear axle swing arm.

[0273] This configuration can improve the yaw stiffness between the rear swing arm and the support body 21; or, it can improve the yaw stiffness between the swing arm and the support body 21 of the torsion beam rear axle.

[0274] 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.

[0275] 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 20 and the swing arm structure 10, thereby improving the handling performance and user comfort of the vehicle 1000.

[0276] As one embodiment of this application, as shown in Figures 2 to 4, the suspension structure 400 includes a swing arm structure 10, a bracket structure 20, and fasteners 30. The swing arm structure 10 includes a swing arm body 11 and a first connecting structure 12. The first connecting structure 12 includes a first connecting seat 122 and a first bearing 121, which are integrally connected to the swing arm body 11. The first connecting seat 122 has a through first mounting hole 101, and the first bearing 121 is disposed within the first mounting hole 101 and is interference-fitted with it. The bracket structure 20 includes a bracket body 21 and a second connecting structure 22. The second connecting structure 22 includes a third connecting seat 223, which is integrally connected to the bracket body 21. Fasteners 30 pass through the inner rings of the third connecting seat 223 and the first bearing 121, and are fixedly connected to them.

[0277] 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 swing arm structure includes a swing arm body and a first connecting structure connected to the swing arm body; A support structure, including a support body and a second connection structure connected to the support body; Fasteners are inserted into the first connecting structure and the second connecting structure to allow the swing arm body and the bracket body to be rotatably connected. Wherein, the first connecting structure includes a first bearing connected to the swing arm body, and the fastener passes through the first bearing; and / or, the second connecting structure includes a second bearing connected to the bracket body, and the fastener passes through the second bearing.

2. The suspension structure according to claim 1, wherein, The first bearing includes a first inner ring and a first outer ring sleeved around the outer periphery of the first inner ring. The first inner ring is rotatable relative to the first outer ring. The first outer ring is connected to the swing arm body. The fastener passes through the first inner ring.

3. The suspension structure according to claim 1 or 2, wherein, The first connection structure further includes a first connecting seat connected to the swing arm body, and the first connecting seat is sleeved on the outer periphery of the first bearing.

4. The suspension structure according to claim 3, wherein, The first connecting seat is provided with a first mounting hole, and the first bearing is interference-fitted with the first mounting hole.

5. The suspension structure according to claim 3 or 4, wherein, The first connecting seat and the swing arm body are an integrally connected structure.

6. The suspension structure according to any one of claims 1-5, wherein, The second bearing includes a second inner ring and a second outer ring sleeved around the outer periphery of the second inner ring. The second inner ring is rotatable relative to the second outer ring. The second outer ring is connected to the bracket body. The fastener passes through the second inner ring.

7. The suspension structure according to any one of claims 1-6, wherein, The second connection structure further includes a second connecting seat connected to the bracket body, the second connecting seat being sleeved on the outer periphery of the second bearing.

8. The suspension structure according to claim 7, wherein, The second connecting seat is provided with a second mounting hole, and the second bearing is interference-fitted with the second mounting hole.

9. The suspension structure according to claim 7 or 8, wherein, The second connecting seat and the bracket body are an integrally connected structure.

10. The suspension structure according to any one of claims 1-9, wherein, The first bearing is of metal construction; and / or, the second bearing is of metal construction.

11. The suspension structure according to any one of claims 1-5, wherein, The first connection structure includes a first bearing connected to the swing arm body, and the fastener passes through the first bearing; the second connection structure includes a third connecting seat connected to the bracket body, and the fastener passes through the third connecting seat.

12. The suspension structure according to claim 11, wherein, The second connection structure further includes a first rotating member, and the third connecting seat is provided with a third mounting hole through the axial direction of the fastener; at least a portion of the first rotating member is rotatably disposed in the third mounting hole, and the fastener passes through the first rotating member.

13. The suspension structure according to claim 12, wherein, The first rotating member includes a first ball head, at least a portion of which is rotatably disposed within the third mounting hole, and the fastener passes through the first ball head.

14. The suspension structure according to claim 13, 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.

15. The suspension structure according to claim 14, wherein, Along the axial direction, the first pin portion is connected to both opposite ends of the first ball head.

16. The suspension structure according to any one of claims 13-15, wherein, The third mounting hole includes a first through hole section and a first groove section. The first through hole section passes through the third 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.

17. The suspension structure according to any one of claims 12-16, wherein, The second connection structure further includes a first sleeve, at least a portion of which is fitted into the third mounting hole, and the first sleeve is sleeved on the outer periphery of the first rotating member.

18. The suspension structure according to claim 17, wherein, The second connection structure further includes a first filler material that fills the space between the first rotating member and the first sleeve.

19. The suspension structure according to any one of claims 1, 6-10, wherein, The second connection structure includes a second bearing connected to the bracket body, and the fastener passes through the second bearing; the first connection structure includes a fourth connection seat connected to the swing arm body, and the fastener passes through the fourth connection seat.

20. The suspension structure according to claim 19, wherein, The first connecting structure further includes a second rotating member, and the fourth connecting seat is provided with a fourth mounting hole through the axial direction of the fastener; at least a portion of the second rotating member is rotatably disposed in the fourth mounting hole, and the fastener passes through the second rotating member.

21. The suspension structure according to claim 20, 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 fourth mounting hole, and the fastener passes through the second ball head and the second pin portion.

22. The suspension structure according to claim 21, wherein, Along the axial direction, the second ball head is connected to the second pin at both opposite ends.

23. The suspension structure according to claim 21 or 22, wherein, The fourth mounting hole includes a second through hole section and a second groove section. The second through hole section passes through the fourth connecting seat along the axial direction, and the second groove section communicates with the outer periphery of the second through hole section. One part of the second ball head is disposed in the second through hole section, and the other part is confined in the second groove section along the axial direction.

24. The suspension structure according to any one of claims 20-23, wherein, The first connection structure further includes: The second sleeve is at least partially assembled in the fourth 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.

25. The suspension structure according to any one of claims 1-24, wherein, The support structure includes a plurality of second connection structures spaced apart from the support body, the first connection structure being located between two adjacent second connection structures, and the fastener passing through at least two adjacent second connection structures; And / or, the swing arm body includes a plurality of first connection structures spaced apart from the swing arm body, the second connection structure is located between two adjacent first connection structures, and the fastener passes through at least two adjacent first connection structures.

26. The suspension structure according to any one of claims 1-25, wherein, Along the axial direction of the fastener, the end of the first connecting structure near the second connecting structure abuts against the end of the second connecting structure near the first connecting structure.

27. The suspension structure according to any one of claims 1-26, wherein, The bracket body has a fifth mounting hole extending through the axial direction of the fastener, and the fifth mounting hole is used to connect the wheel.

28. The suspension structure according to any one of claims 1-27, wherein, The swing arm body includes a rear swing arm or a torsion beam rear axle swing arm.

29. A vehicle, wherein, Includes the suspension structure according to any one of claims 1-28.

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