Bushing structure, suspension assembly and vehicle

Abstract

The embodiment of the utility model relates to the technical field of vehicles, and discloses a lining structure, a suspension assembly and a vehicle. The bushing structure comprises a main spring and a bushing inner pipe assembly. The main spring is used for being connected with an auxiliary frame, a first mounting hole, a first groove and a plurality of second grooves are formed in the main spring, the first groove is formed in the first mounting hole around the axis of the main spring, and the second grooves are sequentially formed in the first mounting hole at intervals in the radial direction of the main spring. The lining inner pipe assembly is used for being connected with a driving motor, and a first protrusion and a plurality of second protrusions are arranged on the outer wall of the lining inner pipe assembly. The lining inner pipe assembly is inserted into the first mounting hole, the first protrusion is located in the first groove, and the second protrusions are correspondingly located in the second grooves. According to the lining structure provided by the embodiment of the invention, the axial rigidity is improved through the cooperation between the first protrusions and the first grooves, the radial rigidity is improved through the cooperation between the second protrusions and the second grooves, and the impact resistance can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of vehicle technology, and in particular to a bushing structure, a suspension assembly, and a vehicle. Background Art

[0002] As a key vehicle drive component, the drive motor is a major source of vibration and noise, impacting the overall ride comfort and ride quality. Improving the vibration isolation of the mount between the drive motor and the subframe is crucial to optimizing vehicle NVH (Noise, Vibration, Harshness) and driving performance.

[0003] In related technology, the drive motor is connected to the vehicle frame via a suspension to reduce the transmission of vibration generated by the drive motor to the vehicle body. A radial reinforcement structure is installed between the main spring and the inner tube of the bushing in the suspension to increase radial rigidity.

[0004] However, the axial stiffness between the main spring and the inner tube of the bushing in the above-mentioned suspension is relatively small, and the impact resistance is poor, which affects the driving experience. Utility Model Content

[0005] In view of this, the embodiments of the present application provide a bushing structure, a suspension assembly and a vehicle to solve the problem of low axial stiffness and poor impact resistance between the main spring and the bushing inner tube in the suspension between the drive motor and the frame on existing vehicles.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides a bushing structure for a vehicle, the bushing structure comprising a main spring and a bushing inner tube assembly;

[0008] The main spring is used to connect to the subframe of the vehicle. The main spring is provided with a first mounting hole, a first groove, and a plurality of second grooves. The first groove is arranged in the first mounting hole around the axis of the main spring. The plurality of second grooves are arranged in the first mounting hole at intervals along the radial direction of the main spring.

[0009] The bushing inner tube assembly is used to connect to the driving motor of the vehicle, and a first protrusion and a plurality of second protrusions are provided on the outer wall of the bushing inner tube assembly;

[0010] The bushing inner tube assembly is inserted into the first mounting hole, the first protrusion is located in the first groove, and the second protrusions are correspondingly located in the second grooves.

[0011] The bushing structure provided in the embodiment of the present application includes a main spring and a bushing inner tube assembly. The main spring is connected to the subframe of the vehicle to fix the main spring, and a first mounting hole, a first groove, and a plurality of second grooves are provided on the main spring. The first groove is arranged in the first mounting hole around the axis of the main spring, and the plurality of second grooves are arranged in the first mounting hole at intervals along the radial direction of the main spring. The bushing inner tube assembly is connected to the drive motor of the vehicle to achieve the connection between the drive motor and the subframe. A first protrusion and a plurality of second protrusions are provided on the outer wall of the bushing inner tube assembly, and the bushing inner tube assembly is inserted into the first mounting hole so that the first protrusion is located in the first groove and each second protrusion is located in a corresponding second groove. On the one hand, the axial stiffness is mainly improved by the cooperation between the first protrusion and the first groove, and on the other hand, the radial stiffness is mainly improved by the cooperation between each second protrusion and each second groove, thereby improving the impact resistance and enhancing the driving experience.

[0012] In a possible implementation of the present application, the first groove intersects and communicates with each of the second grooves.

[0013] In a possible implementation of the present application, at least one first limiting portion is provided on the main spring, and the first limiting portion is located in the first mounting hole;

[0014] At least one second limiting portion is provided on the outer wall of the bushing inner tube assembly, and the second limiting portion is correspondingly connected to the first limiting portion.

[0015] In a possible implementation of the present application, one of the first limiting portion and the second limiting portion is a third groove, and the other is a third protrusion matching the third groove, and the third protrusion is connected to the third groove.

[0016] In a possible implementation of the present application, the bushing inner tube assembly includes an inner core and a bushing inner tube, wherein the inner core is inserted into the first mounting hole;

[0017] The inner tube of the bushing is inserted into the inner core, and the first protrusion and the plurality of second protrusions are located on the inner core.

[0018] In a possible implementation of the present application, at least one third limiting portion is provided on one of the inner core and the inner tube of the bushing, and at least one fourth limiting portion is provided on the other;

[0019] The third limiting portion is correspondingly connected to the fourth limiting portion to limit the relative movement and rotation between the inner core and the inner tube of the bushing.

[0020] In a second aspect, an embodiment of the present application provides a suspension assembly, including a suspension assembly body, on which any one of the bushing structures provided in the first aspect is provided.

[0021] In a possible implementation of the present application, the suspension assembly further includes a bushing outer tube, a first connecting member, and a bracket. The bushing outer tube is used to connect to the subframe, and the main spring is inserted into the bushing outer tube.

[0022] The first connecting piece is inserted into the bushing inner tube assembly and connected to the bracket, and the bracket is used to be connected to the driving motor.

[0023] In a possible implementation of the present application, at least one second mounting hole is provided on the bracket, a vibration isolation sleeve is provided in the second mounting hole, and the vibration isolation sleeve is used to be connected to the drive motor through the second connecting member.

[0024] In a third aspect, an embodiment of the present application provides a vehicle, including a vehicle body, a subframe and a drive motor provided on the vehicle body, and any one of the bushing structures provided in the first aspect above provided between the drive motor and the subframe;

[0025] Alternatively, the drive motor and the sub-frame are connected via any one of the suspension assemblies provided in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 A schematic structural diagram of a main spring in a bushing structure provided in an embodiment of the present application;

[0028] Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure from another perspective;

[0029] Figure 3 A schematic structural diagram of the inner core of the bushing structure provided in an embodiment of the present application;

[0030] Figure 4 for Figure 3 A structural diagram from another perspective;

[0031] Figure 5 A partial structural diagram illustrating the connection relationship between the suspension assembly, the subframe, and the drive motor provided in an embodiment of the present application;

[0032] Figure 6 for Figure 5 Exploded view of the center mount assembly.

[0033] Reference numerals:

[0034] 10: Subframe;

[0035] 20: driving motor;

[0036] 100: main spring;

[0037] 110: first mounting hole;

[0038] 120: first groove;

[0039] 130: second groove;

[0040] 140: first limiting portion;

[0041] 150: Partial flanging;

[0042] 200: Bushing inner tube assembly;

[0043] 210: first protrusion;

[0044] 220: second protrusion;

[0045] 201: inner core;

[0046] 2011: The third limiter;

[0047] 202: inner tube of bushing;

[0048] 2021: Fourth Limitation Department;

[0049] 300: outer tube of bushing;

[0050] 400: first connecting member;

[0051] 500: bracket;

[0052] 510: second mounting hole;

[0053] 520: Vibration isolation sleeve. DETAILED DESCRIPTION

[0054] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0055] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more.

[0056] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0057] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0058] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0059] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0060] The embodiments of the present application provide a bushing structure, a suspension assembly, and a vehicle for use in a vehicle, which can be a large car, a small car, a special-purpose vehicle, or the like. For example, based on the vehicle type, the vehicle in the present application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other vehicle types. A vehicle generally includes wheels, a power source, and a transmission system disposed between the wheels and the power source. The transmission system can transmit power provided by the power source to the wheels, causing the wheels to rotate, thereby driving the vehicle.

[0061] It should be noted that in the embodiments of this application, the type of vehicle power source is not limited. For example, for fuel-powered vehicles, the power source may refer to a gasoline engine, a diesel engine, or other fuel engine; for electric vehicles, the power source may refer to an electric motor, i.e., a drive motor; for hybrid vehicles, the power source may refer to an engine or an electric motor; and for vehicles powered by other means, the power source may refer to a device that generates power.

[0062] At present, the suspension of the drive motor generally adopts a cross bushing or a solid bushing. This structure can provide greater radial stiffness, but the axial stiffness is relatively small. In particular, when the bushing needs to be arranged axially along the front and rear direction of the vehicle, a large impact force is generated on the axial direction of the bushing during sudden acceleration and starting or sudden deceleration and stopping. In this case, the bushing is easily damaged, and this problem needs to be solved urgently.

[0063] Based on the above problems, the embodiments of the present application provide a bushing structure, a suspension assembly, and a vehicle. The main spring is connected to the subframe of the vehicle to fix the main spring, and a first mounting hole, a first groove, and a plurality of second grooves are provided on the main spring. The first groove is arranged in the first mounting hole around the axis of the main spring, and the plurality of second grooves are arranged in the first mounting hole in sequence along the radial direction of the main spring. The bushing inner tube assembly is connected to the drive motor of the vehicle to achieve the connection between the drive motor and the subframe, and a first protrusion and a plurality of second protrusions are provided on the outer wall of the bushing inner tube assembly. The bushing inner tube assembly is inserted into the first mounting hole so that the first protrusion is located in the first groove, and each second protrusion is located in a corresponding second groove. On the one hand, the axial stiffness is mainly improved by the cooperation between the first protrusion and the first groove, and on the other hand, the radial stiffness is mainly improved by the cooperation between each second protrusion and each second groove, thereby improving the impact resistance and enhancing the driving experience.

[0064] The bushing structure, suspension assembly and vehicle provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0065] First, refer to Figures 1-6 As shown, an embodiment of the present application provides a bushing structure, including a main spring 100 and a bushing inner tube assembly 200 .

[0066] The main spring 100 is used to connect to the subframe 10 of the vehicle. A first mounting hole 110, a first groove 120 and a plurality of second grooves 130 are provided on the main spring 100. The first groove 120 is arranged in the first mounting hole 110 around the axis of the main spring 100, and the plurality of second grooves 130 are arranged in the first mounting hole 110 in sequence along the radial direction of the main spring 100.

[0067] The bushing inner tube assembly 200 is used to be connected to a driving motor 20 of a vehicle. A first protrusion 210 and a plurality of second protrusions 220 are provided on an outer wall of the bushing inner tube assembly 200 .

[0068] The bushing inner tube assembly 200 is inserted into the first mounting hole 110 , the first protrusion 210 is located in the first groove 120 , and each second protrusion 220 is correspondingly located in each second groove 130 .

[0069] The main spring 100 in this embodiment is used to isolate the vibration transmitted from the drive motor 20 to the vehicle body. It can be a rubber part. Multiple cavities can be set around the main spring 100's own axis for buffering and vibration reduction. Protrusions can also be set in the cavity along the radial direction of the main spring 100 to limit excessive collapse within the effective design stroke, effectively improving the load-bearing capacity.

[0070] Among them, such as Figure 1 、 Figure 2 As shown, the main spring 100 can be roughly cylindrical or in the shape of a body of revolution. The outer periphery of the main spring 100 can be fixedly connected to the subframe 10 via an outer sleeve, or can be fixedly connected to the subframe 10 via other components. A first mounting hole 110 is provided in the axial direction of the main spring 100. The first mounting hole 110 is used to install the bushing inner tube assembly 200. A first groove 120 is provided on the inner wall of the first mounting hole 110. The first groove 120 is arranged around the axis of the main spring 100 and its cross-section can be semicircular. A plurality of second grooves 130 are also provided on the inner wall of the first mounting hole 110. The second grooves 130 are provided along the radial direction of the main spring 100. They can be elongated and parallel to the axis of the main spring 100. The plurality of second grooves 130 can be arranged in a circular array around the axis of the main spring 100.

[0071] One end of the bushing inner tube assembly 200 in this embodiment is used to connect to the vehicle's drive motor 20, which can be connected by screwing, welding, etc., and the other end is connected to the main spring 100, which can be connected by plugging, screwing, etc. The bushing inner tube assembly 200 can also be roughly cylindrical or revolving, and can be inserted into the first mounting hole 110 by tight fit.

[0072] Among them, such as Figure 3 、 Figure 4As shown, a first protrusion 210 is provided on the outer wall of the bushing inner tube assembly 200. The first protrusion 210 can be used to cooperate with the first groove 120. The first protrusion 210 can be arranged around the bushing inner tube assembly 200, and the cross-section of the first protrusion 210 can be semicircular. A plurality of second protrusions 220 are provided on the outer wall of the bushing inner tube assembly 200. The second protrusions 220 are used to cooperate with the second groove 130. The second protrusions 220 can be arranged along the radial direction of the bushing inner tube assembly 200. Moreover, the second protrusions 220 can also be elongated and parallel to the axis of the bushing inner tube assembly 200. The plurality of second protrusions 220 can be arranged in a circumferential array around the axis of the bushing inner tube assembly 200.

[0073] Specifically, after the bushing inner tube assembly 200 is assembled, it is installed on a mold, and liquid rubber is injected into the mold to finally form it into one piece. Figure 5 As shown, the main spring 100 is connected to the subframe 10 of the vehicle, the bushing inner tube assembly 200 is connected to the drive motor 20 of the vehicle, and the bushing inner tube assembly 200 is inserted into the first mounting hole 110. At this time, the first protrusion 210 is located in the first groove 120. The axial stiffness between the main spring 100 and the bushing inner tube assembly 200 can be greatly improved by the cooperation between the first protrusion 210 and the first groove 120. Figure 5 As shown in the X direction, at the same time, each second protrusion 220 is correspondingly located in each second groove 130. The cooperation between each second protrusion 220 and each second groove 130 can greatly improve the radial stiffness between the main spring 100 and the bushing inner tube assembly 200, as shown in FIG. Figure 5 As shown in the Y direction in the figure, large radial collapse is avoided, thereby improving the impact resistance and enhancing the driving experience.

[0074] It should be noted that the cooperation between the first protrusion 210 and the first groove 120 can also improve the radial stiffness to a certain extent, but more importantly improve the axial stiffness. Similarly, the cooperation between each second protrusion 220 and each second groove 130 can also improve the axial stiffness to a certain extent, but more importantly improve the radial stiffness.

[0075] In addition, the figure exemplarily shows the matching structure of four second protrusions 220 and four second grooves 130. Of course, a greater or lesser number of second protrusions 220 and second grooves 130 can also be provided, depending on actual needs.

[0076] In some embodiments of the present application, the first groove 120 intersects and communicates with each second groove 130. Correspondingly, the first protrusion 210 intersects and connects with each second protrusion 220. Figures 1 to 5As shown, the first protrusion 210 can support each second protrusion 220 in the circumferential direction, thereby enhancing the torsional resistance of each second protrusion 220. Similarly, each second protrusion 220 can support the first protrusion 210 in the axial direction, thereby enhancing the axial tensile resistance of the first protrusion 210.

[0077] Preferably, the first groove 120 intersects and communicates with the middle of each second groove 130, and correspondingly, the first protrusion 210 intersects and connects with the middle of each second protrusion 220. This arrangement makes the force more balanced.

[0078] In some embodiments of the present application, at least one first limiting portion 140 is provided on the main spring 100 , and the first limiting portion 140 is located in the first mounting hole 110 .

[0079] At least one second limiting portion 230 is provided on the outer wall of the bushing inner tube assembly 200 , and the second limiting portion 230 is correspondingly connected to the first limiting portion 140 .

[0080] With such an arrangement, before vulcanization molding, when the bushing inner tube assembly 200 is fixed on the mold, it can be limited by the second limiting portion 230 to ensure that the orientation of the bushing inner tube assembly 200 remains unchanged during the vulcanization process, ensuring that the buffer cavity structure on the main spring 100 is in the correct orientation.

[0081] On this basis, in some embodiments of the present application, one of the first limiting portion 140 and the second limiting portion 230 is a third groove, and the other is a third protrusion matching the third groove, and the third protrusion is connected to the third groove.

[0082] Specifically, refer to Figures 1 to 4 As shown, the first limiting portion 140 is a third groove, and the second limiting portion 230 is a third protrusion that matches the third groove, and the third protrusion and the third groove are cooperatively connected. Of course, the first limiting portion 140 can also be a third protrusion, and the second limiting portion 230 can also be a third groove that matches the third protrusion, and the third protrusion and the third groove can also be cooperatively connected. This is not specifically limited in this embodiment.

[0083] In the embodiment of the present application, the bushing inner tube assembly 200 includes an inner core 201 and a bushing inner tube 202 , and the inner core 201 is inserted into the first mounting hole 110 .

[0084] The bushing inner tube 202 is inserted into the inner core 201 , and a first protrusion 210 and a plurality of second protrusions 220 are located on the inner core 201 .

[0085] Specifically, if Figure 3As shown, the inner core 201 can be made of nylon, with a first protrusion 210 and multiple second protrusions 220 located on the inner core 201. A mounting hole is provided at the axis of the inner core 201. The bushing inner tube 202 can be made of metal and can be inserted into the mounting hole of the inner core 201 with a tight fit.

[0086] In this way, on the one hand, it is convenient for the processing and manufacturing of single pieces, as well as the subsequent pressing; on the other hand, it is easy to replace and meet the installation requirements of different specifications.

[0087] Furthermore, in the embodiment of the present application, at least one third limiting portion 2011 is provided on one of the inner core 201 and the bushing inner tube 202 , and at least one fourth limiting portion 2021 is provided on the other.

[0088] The third limiting portion 2011 is correspondingly connected to the fourth limiting portion 2021 to limit the relative movement and rotation between the inner core 201 and the bushing inner tube 202 .

[0089] In this way, after the bushing inner tube 202 is inserted into the installation through hole of the inner core 201 , the third limiting portion 2011 is correspondingly connected to the fourth limiting portion 2021 , which can play a limiting role between the inner core 201 and the bushing inner tube 202 .

[0090] For example, Figure 4 、 Figure 5 As shown, the third limiting portion 2011 is a first plane on the inner wall of the mounting through hole, and four are arranged in a circular array around the axis of the inner core 201. Correspondingly, the fourth limiting portion 2021 is a second plane on the outer wall of the bushing inner tube 202, and four are arranged in a circular array around the axis of the bushing inner tube 202. Each first plane corresponds to each second plane for limiting.

[0091] Of course, the third limiting portion 2011 and the fourth limiting portion 2021 can also be set to other numbers, or replaced by other types of limiting structures, which can be determined according to actual needs and is not specifically limited in this embodiment.

[0092] In a second aspect, an embodiment of the present application further provides a suspension assembly, including a suspension assembly body, on which the bushing structure in any of the above embodiments is provided.

[0093] That is, the suspension assembly at least includes the main spring 100 and the bushing inner tube assembly 200 , and the bushing structure is provided between the main spring 100 and the bushing inner tube assembly 200 .

[0094] The bushing structure has been described in detail in the above embodiments and will not be described again here.

[0095] It can be understood that the suspension assembly provided in the embodiment of the present application can improve the impact resistance and enhance the driving experience by providing the above-mentioned bushing structure.

[0096] Furthermore, in this embodiment, the suspension assembly further includes a bushing outer tube 300 , a first connecting member 400 and a bracket 500 . The bushing outer tube 300 is used to connect to the subframe 10 , and the main spring 100 is inserted into the bushing outer tube 300 .

[0097] The first connecting member 400 is inserted into the bushing inner tube assembly 200 and connected to the bracket 500 . The bracket 500 is used to connect to the driving motor 20 .

[0098] Specifically, if Figure 5 、 Figure 6 As shown, the bushing outer tube 300 can be a cylindrical or rotating shell structure, the main spring 100 is formed in the bushing outer tube 300 by vulcanization, and the bushing outer tube 300 can be connected to the subframe 10 by clamping, welding, screwing, etc.

[0099] The first connecting member 400 can be a screw or a connecting rod. The bushing inner tube assembly 200 also has an installation hole in the axial direction. The first connecting member 400 can pass through the installation hole and be connected to the bracket 500. The first connecting member 400 and the bracket 500 can be connected by screwing, plugging, welding, etc.

[0100] It should be noted that the specific types and structures of the bushing outer tube 300 , the first connecting member 400 and the bracket 500 can be determined according to actual needs and are not specifically limited in this embodiment.

[0101] Furthermore, in this embodiment, at least one second mounting hole 510 is provided on the bracket 500 , and a vibration isolation sleeve 520 is provided in the second mounting hole 510 . The vibration isolation sleeve 520 is used to be connected to the driving motor 20 through a second connecting member.

[0102] Specifically, if Figure 6 As shown, three second mounting holes 510 are provided on the bracket 500, and a vibration isolation sleeve 520 is provided in each second mounting hole 510. The vibration isolation sleeve 520 can be a rubber sleeve. The second connecting member passes through the vibration isolation sleeve 520 and is connected to the drive motor 20, thereby playing a role of secondary vibration isolation.

[0103] The number of the second mounting holes 510 and the vibration isolation sleeve 520 may be determined according to the number of holes on the drive motor 20 , and is not specifically limited in this embodiment.

[0104] Furthermore, in this embodiment, a partial flange 150 is provided on the circumferential side of the main spring 100 , and the partial flange 150 is located between the bushing outer tube 300 and the bracket 500 .

[0105] Specifically, continue as Figure 6 As shown, the partial flange 150 is used to prevent rigid collision between the bracket 500 and the bushing outer tube 300 or the subframe 10. The bracket 500 can impact the partial flange 150 to isolate the impact. The specific size and thickness of the partial flange 150 can be determined according to actual needs and are not specifically limited in this embodiment.

[0106] In a third aspect, embodiments of the present application further provide a vehicle, including a vehicle body, on which a subframe 10 and a drive motor 20 are disposed, with a bushing structure according to any of the above embodiments disposed between the drive motor 20 and the subframe 10. The vehicle body may further include a vehicle body, with the subframe 10 connected to the vehicle body.

[0107] Alternatively, the drive motor 20 and the sub-frame 10 are connected via the suspension assembly in any of the above embodiments.

[0108] It can be understood that the vehicle provided in the embodiment of the present application can improve the impact resistance and enhance the driving experience by providing the above-mentioned bushing structure or the suspension assembly having the above-mentioned bushing structure.

[0109] The serial numbers of the embodiments of this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only preferred embodiments of this application and do not limit the scope of the patent of this application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

Claims

1. A bushing structure for a vehicle, characterized in that: include: A main spring (100), the main spring (100) being used to be connected to a subframe (10) of the vehicle, the main spring (100) being provided with a first mounting hole (110), a first groove (120), and a plurality of second grooves (130), the first groove (120) being arranged in the first mounting hole (110) around the axis of the main spring (100), and the plurality of second grooves (130) being arranged in the first mounting hole (110) at intervals in a radial direction of the main spring (100); A bushing inner tube assembly (200) is used to connect to a driving motor (20) of the vehicle, and a first protrusion (210) and a plurality of second protrusions (220) are provided on an outer wall of the bushing inner tube assembly (200); The bushing inner tube assembly (200) is inserted into the first mounting hole (110), the first protrusion (210) is located in the first groove (120), and each second protrusion (220) is correspondingly located in each second groove (130).

2. The bushing structure according to claim 1, characterized in that: The first groove (120) intersects and communicates with each of the second grooves (130).

3. The bushing structure according to claim 1, characterized in that: At least one first limiting portion (140) is provided on the main spring (100), and the first limiting portion (140) is located in the first mounting hole (110); At least one second limiting portion (230) is provided on the outer wall of the bushing inner tube assembly (200), and the second limiting portion (230) is correspondingly connected to the first limiting portion (140).

4. The bushing structure according to claim 3, characterized in that: One of the first limiting portion (140) and the second limiting portion (230) is a third groove, and the other is a third protrusion matching the third groove, and the third protrusion is connected to the third groove.

5. The bushing structure according to any one of claims 1 to 4, characterized in that: The bushing inner tube assembly (200) comprises an inner core (201) and a bushing inner tube (202), wherein the inner core (201) is inserted into the first mounting hole (110); The bushing inner tube (202) is inserted into the inner core (201), and the first protrusion (210) and a plurality of the second protrusions (220) are located on the inner core (201).

6. The bushing structure according to claim 5, characterized in that: At least one third limiting portion (2011) is provided on one of the inner core (201) and the bushing inner tube (202), and at least one fourth limiting portion (2021) is provided on the other. The third limiting portion (2011) is correspondingly connected to the fourth limiting portion (2021) to limit the relative movement and rotation between the inner core (201) and the bushing inner tube (202).

7. A suspension assembly, characterized in that: It comprises a suspension assembly body, on which the bushing structure according to any one of claims 1 to 6 is provided.

8. The suspension assembly according to claim 7, characterized in that: The suspension assembly further includes a bushing outer tube (300), a first connecting member (400) and a bracket (500); the bushing outer tube (300) is used to be connected to the sub-frame (10); and the main spring (100) is inserted into the bushing outer tube (300); The first connecting member (400) is inserted into the bushing inner tube assembly (200) and connected to the bracket (500). The bracket (500) is used to connect to the driving motor (20).

9. The suspension assembly according to claim 8, characterized in that: At least one second mounting hole (510) is provided on the bracket (500), a vibration isolation sleeve (520) is provided in the second mounting hole (510), and the vibration isolation sleeve (520) is used to be connected to the drive motor (20) via a second connecting member.

10. A vehicle, characterized in that: The vehicle comprises a vehicle body, a subframe (10) and a drive motor (20) are provided on the vehicle body, and a bushing structure according to any one of claims 1 to 6 is provided between the drive motor (20) and the subframe (10); Alternatively, the drive motor (20) and the subframe (10) are connected via a suspension assembly as claimed in any one of claims 7 to 9.

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