Suspension structure and vehicle

Abstract

This application relates to the field of vehicle mounting technology and provides a mounting structure and a vehicle. The mounting structure of this application includes a mounting frame, an inner core inserted within the mounting frame, an elastic portion connecting the mounting frame and the inner core, and a connecting portion connecting the mounting frame and the elastic portion together. The mounting frame can be mounted to a vehicle body, and the inner core can be connected to a power unit. The connecting portion is partially embedded in the mounting frame and / or the elastic portion, preventing the elastic portion from detaching from the mounting frame. The mounting structure of this application enhances the bonding strength between the elastic portion and the mounting frame, making it less likely for the elastic portion to detach from the mounting frame under vibration loads, thus improving the reliability of the mounting system.

Description

Technical Field

[0001] This application relates to the field of vehicle suspension technology, and in particular to a suspension structure and a vehicle. Background Technology

[0002] A mount is an automotive powertrain component used to reduce and control the transmission of vibrations from the power unit and to provide support. In the current vehicle industry, widely used mounts are divided into rubber mounts and hydraulic mounts, which have good dynamic and static performance.

[0003] Rubber suspension mounts typically consist of a suspension frame and rubber bushings housed within it, with the bushings absorbing vibrations. However, during vehicle operation, especially during engine start-up, shutdown, and high-speed operation, significant impact forces and torques are applied to the rubber bushings. This can cause the bushings to detach from the suspension frame, negatively impacting the reliability of the suspension mount. Utility Model Content

[0004] In view of this, this application aims to propose a suspension structure to improve the reliability of the suspension in use.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0006] A suspension structure includes a suspension frame with a receiving cavity, an inner core passing through the suspension frame, an elastic portion connecting the suspension frame and the inner core, and a connecting portion disposed between the suspension frame and the elastic portion.

[0007] The suspension frame can be mounted on the vehicle body, and the inner core can be connected to the power unit.

[0008] The connecting portion connects the suspension frame and the elastic portion together, and the connecting portion has an embedding portion that is embedded in at least one of the suspension frame and the elastic portion, which can prevent the elastic portion from detaching from the suspension frame.

[0009] Furthermore, the connecting part is spiral-shaped and nested on the elastic part, and the connecting part is partially embedded in the suspension frame.

[0010] Furthermore, the connecting portion includes a spring and a protective layer covering the spring.

[0011] Furthermore, the protective layers on any adjacent spiral coils of the spring are in contact.

[0012] Furthermore, the elastic part is cylindrical, and the inner core penetrates the elastic part along its axial direction.

[0013] Furthermore, the elastic part is provided with a through hole, and the inner core includes a cylindrical body fixed in the through hole and a core body interference fit into the cylindrical body. The inner core is connected to the power device through the core body.

[0014] Furthermore, at least one end of the elastic part is provided with a groove in the axial direction, and the groove is recessed into the elastic part itself.

[0015] Furthermore, the suspension frame includes a first frame and a second frame connected together, and the first frame and the second frame enclose the receiving cavity.

[0016] Furthermore, the first frame is provided with a positioning groove, and the second frame is provided with a positioning block;

[0017] The positioning block can be inserted into the positioning slot to define the relative positions of the first frame and the second frame.

[0018] Compared with related technologies, this application has the following advantages:

[0019] (1) The suspension structure described in this application, by providing a suspension frame, an elastic part and an inner core, enables the vibration of the power device to be transmitted to the inner core first, and then from the inner core to the elastic part, where the elastic part absorbs the vibration. The connection part with an embedded part is provided, and the embedded part is embedded in the suspension frame and / or the elastic part, which can enhance the bonding strength between the elastic part and the suspension frame. The elastic part is not easy to fall out of the suspension frame when subjected to vibration load, which is beneficial to improving the reliability of the suspension.

[0020] (2) The connecting part is spiral-shaped and is embedded in both the elastic part and the suspension frame. This makes the position of the elastic part relative to the suspension frame more stable. When the elastic part absorbs vibration, it can also be firmly held in the suspension frame. The elastic part and the suspension frame are connected by the connecting part, forming a structure similar to a threaded connection. This not only has a good effect of preventing the elastic part from falling off, but also allows the suspension frame, elastic part and connecting part to be assembled together by screwing.

[0021] (3) By setting the connecting part including the spring and the protective layer covering the spring, the elastic part can absorb part of the vibration with the help of the spring when subjected to vibration loads in all directions, thereby improving the vibration absorption capacity of the suspension structure. The protective layer can resist the corrosion of the spring by the external environment, prevent the spring from directly colliding with the suspension frame, and reduce the wear of the elastic part, thus extending the service life of the elastic part.

[0022] (4) Setting the protective layer on the adjacent spiral coils of the spring to be in contact with each other can make the damping performance of the connection part higher, which can dampen vibration faster, reduce the number of spring rebounds, and improve the overall stiffness of the connection part; at the same time, the gap between the adjacent spiral coils of the spring is filled by the protective layer, which can also prevent hard foreign objects from entering and getting stuck between the spiral coils, reducing unnecessary wear of the elastic part.

[0023] (5) Setting the elastic part as a cylinder can make the vibration absorption capacity of the elastic part more uniform in the radial direction and reduce stress concentration. The inner core passes through the elastic part in the axial direction, which can make the elastic part stably support the inner core and effectively isolate the inner core from the suspension frame. At the same time, the setting of the inner core directly passing through the elastic part can also make the overall structure simpler and occupy less space.

[0024] (6) A through hole is provided in the elastic part so that the inner core can be arranged and connected. The inner core includes a cylinder and a core. When connecting the elastic part and the inner core, the cylinder is first connected to the elastic part, and then the core is inserted into the cylinder. This arrangement facilitates the assembly of the inner core and the elastic part. The core and the cylinder are interlocked, which also makes the core more firmly held in the corresponding position in the elastic part.

[0025] (7) By providing a groove at at least one end of the elastic part in the axial direction, a preset and controllable deformation space is provided for the elastic part. When the elastic part is subjected to vibration load, the groove guides the elastic part to deform. The elastic part preferentially deforms towards the groove position, reducing stress concentration and making the elastic part less prone to cracking under stress. At the same time, when the elastic part is heated, the groove can provide expansion space for the elastic part, reducing the additional stress generated by the expansion of the elastic part.

[0026] (8) The suspension frame includes a first frame and a second frame connected to each other, and the first frame and the second frame together form a receiving cavity. This can reduce the assembly resistance of the elastic part, reduce the assembly difficulty, and make the assembly operation more convenient. At the same time, it can also facilitate the removal of the elastic part and the connecting part inside the receiving cavity, making it easier to inspect and replace the elastic part and the connecting part.

[0027] (9) A positioning groove is set on the first frame and a positioning block is set on the second frame. The relative position between the first frame and the second frame can be limited by the cooperation between the positioning block and the positioning groove, so that the assembly between the first frame and the second frame is more precise. At the same time, the meshing structure between the positioning block and the positioning groove can also resist the shear resistance at the contact surface between the first frame and the second frame, and improve the overall rigidity.

[0028] This application also proposes a vehicle having the aforementioned suspension structure.

[0029] The vehicle described in this application, by setting the aforementioned suspension structure, allows the vibration load to be first transmitted to the inner core when the power unit vibrates, and then from the inner core to the elastic part. The elastic part absorbs the vibration, reduces vibration and noise, and improves the vehicle's NVH (Noise, Vibration, Harshness) performance. The addition of a connecting part with an embedded portion, which is embedded in the suspension frame and / or the elastic part, enhances the bonding strength between the elastic part and the suspension frame. This prevents the elastic part from easily detaching from the suspension frame under vibration loads, thus improving the reliability of the suspension, enhancing the reliability of the powertrain support, and ultimately improving the vehicle's overall performance. Attached Figure Description

[0030] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall structure of the suspension structure described in the embodiments of this application;

[0032] Figure 2 This is a cross-sectional view of the suspension structure described in the embodiments of this application;

[0033] Figure 3 This is a schematic diagram of the structure of the elastic part described in the embodiment of this application;

[0034] Figure 4 This is a schematic diagram showing the elastic part, inner core, and connecting part assembled together according to an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the core structure described in the embodiments of this application;

[0036] Figure 6 This is a schematic diagram of the structure of the cylinder described in the embodiment of this application;

[0037] Figure 7 This is a schematic diagram of the structure of the first frame described in the embodiments of this application;

[0038] Figure 8 This is a schematic diagram of the structure of the second frame described in the embodiments of this application;

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Suspension frame;

[0041] 101. First frame; 1011. Positioning groove; 1012. Base; 1013. First housing; 1014. First connecting plate; 102. Second frame; 1021. Positioning block; 1022. Second housing; 1023. Second connecting plate; 103. Receiving cavity; 104. First receiving groove; 105. Second mounting hole; 106. Third mounting hole;

[0042] 2. Inner core;

[0043] 201. Cylinder body; 2011. Insertion hole; 202. Core body; 2021. First mounting hole;

[0044] 3. Elastic part;

[0045] 301. Through hole; 302. Groove; 303. Second receiving groove;

[0046] 4. Connecting parts;

[0047] 401. Spring; 402. Protective layer;

[0048] 5. Bolts. Detailed Implementation

[0049] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0051] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0053] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0055] An embodiment of the first aspect of this application provides a suspension structure.

[0056] In related technologies, a mount is an automotive powertrain component used to reduce and control the transmission of vibrations from the power unit and to provide support. In the current vehicle industry, mounts are widely used in two types: rubber mounts and hydraulic mounts, which have good dynamic and static performance.

[0057] Rubber suspension mounts typically consist of a suspension frame and rubber bushings housed within it, with the bushings absorbing vibrations. However, during vehicle operation, especially during engine start-up, shutdown, and high-speed operation, significant impact forces and torques are applied to the rubber bushings. This can cause the bushings to detach from the suspension frame, negatively impacting the reliability of the suspension mount.

[0058] In view of this, in order to overcome the shortcomings of related technologies, the suspension structure of this embodiment combines... Figures 1 to 4 In terms of overall design, it includes a suspension frame 1 with a receiving cavity 103, an inner core 2 inserted in the suspension frame 1, an elastic part 3 connecting the suspension frame 1 and the inner core 2, and a connecting part 4 provided between the suspension frame 1 and the elastic part 3.

[0059] The suspension frame 1 can be mounted on the vehicle body, and the inner core 2 can be connected to the power unit. The connecting part 4 connects the suspension frame 1 and the elastic part 3 together, and the connecting part 4 has an embedding portion that is embedded in at least one of the suspension frame 1 and the elastic part 3, which can prevent the elastic part 3 from detaching from the suspension frame 1.

[0060] Therefore, by setting up the suspension frame 1, the elastic part 3, and the inner core 2, and connecting the power unit to the inner core 2, when the power unit vibrates, the vibration load is first transmitted to the inner core 2, and then from the inner core 2 to the elastic part 3, where the elastic part 3 absorbs the vibration. The addition of a connecting part 4 with an embedded portion, which is embedded in the suspension frame 1 and / or the elastic part 3, enhances the bonding strength between the elastic part 3 and the suspension frame 1. This prevents the elastic part 3 from easily detaching from the suspension frame 1 under vibration loads, thus improving the reliability of the suspension.

[0061] Based on the above overview, specifically, multiple suspension structures can be installed on a vehicle. The inner cores 2 of these multiple suspension structures are connected to the vehicle's power unit to jointly support the power unit and reduce the transmission of vibration loads to the vehicle body. The power unit can be a motor, engine, or other power element capable of generating vibration.

[0062] Regarding the material of the suspension frame 1, it is typically made of metal or plastic. For metal, aluminum alloy or steel are suitable options. Steel offers high structural strength, good environmental resistance and durability, and lower manufacturing costs, while also being easy to weld and machine. Aluminum alloy is lightweight, with a density only about one-third that of steel, and it forms a natural alumina protective layer on its surface, providing strong corrosion resistance. As for the material of the elastic part 3, it can be made of rubber or polyurethane elastomer, and its main function is to absorb and dissipate the vibration load transmitted from the inner core 2.

[0063] Continue to combine Figures 1 to 4 As shown, in some exemplary embodiments, the connecting part 4 is spiral-shaped and nested on the elastic part 3, with the connecting part 4 partially embedded in the suspension frame 1. The spiral-shaped connecting part 4, embedded in both the elastic part 3 and the suspension frame 1, makes the position of the elastic part 3 relative to the suspension frame 1 more stable. When absorbing vibrations, the elastic part 3 can also be firmly held in the suspension frame 1. The connection between the elastic part 3 and the suspension frame 1 via the connecting part 4 forms a threaded connection structure, which not only effectively prevents the elastic part 3 from falling off but also allows for assembly of the suspension frame 1, the elastic part 3, and the connecting part 4 by screwing, improving assembly convenience.

[0064] In order to accommodate the spiral connecting part 4, the suspension frame 1 is provided with a first receiving groove 104, and the elastic part 3 is provided with a second receiving groove 303. The outer ring of the embedded part of the connecting part 4 is embedded in the first receiving groove 104, and the inner ring is embedded in the second receiving groove 303, so as to realize the snap-fit ​​of the connecting part 4 between the elastic part 3 and the suspension frame 1, thereby firmly fixing the elastic part 3 in the suspension frame 1.

[0065] Secondly, it should be noted that, in addition to embedding the connecting part 4 in both the suspension frame 1 and the elastic part 3, the connecting part 4 can also be embedded in the suspension frame 1 and bonded to the surface of the elastic part 3, or the connecting part 4 can be embedded in the elastic part 3 and bonded to the suspension frame 1. Embedding the connecting part 4 in both the suspension frame 1 and the elastic part 3 is most beneficial for the assembly of the suspension structure.

[0066] Based on the spiral shape of the connecting part 4, in some exemplary embodiments, the connecting part 4 includes a spring 401 and a protective layer 402 covering the spring 401. By providing the connecting part 4 with a spring 401 and a protective layer 402 covering the spring 401, the elastic part 3 can absorb some of the vibration with the assistance of the spring 401 when subjected to vibration loads from all directions, thereby improving the vibration absorption capacity of the suspension structure. At the same time, the protective layer 402 can resist the corrosion of the spring 401 by the external environment, prevent the spring 401 from directly colliding with the suspension frame 1, reduce noise, and also reduce the wear of the elastic part 3, extending the service life of the spring 401.

[0067] For example, in addition to conventional metal materials such as steel or plastic, spring 401 can also be made of fiber-reinforced composite materials or shape memory alloys.

[0068] Fiber-reinforced composite materials are composite materials composed of fibers and a matrix, with the fibers acting as reinforcements and the matrix as a binder. The structural characteristic of this material is the strong bond between the fibers and the matrix, which fully utilizes the high strength of the fibers and the toughness of the matrix, resulting in composite materials with excellent mechanical properties such as high strength, high stiffness, fatigue resistance, corrosion resistance, and lightweight. The spring 401 in this application can be made of one of carbon fiber composite materials, glass fiber composite materials, aramid fiber composite materials, or boron fiber composite materials.

[0069] Secondly, shape memory alloys (SMAs) are metallic materials with unique properties. They can change shape at specific temperatures and return to their original shape when the temperature recovers. The two main effects of shape memory alloys are the shape memory effect and the superelastic effect. The shape memory effect refers to the alloy's ability to recover its original shape when heated after being plastically deformed at low temperatures. In this application, when the drive device continuously vibrates, causing the spring 401 to heat up to its transition point, the spring 401 can recover its original shape, thus improving vibration damping performance. The superelastic effect refers to the alloy's ability to withstand large mechanical deformation within a certain temperature range without permanent deformation. When the external force is removed, the alloy can quickly recover its original shape.

[0070] Reference Figure 2 and Figure 4 As shown, in some exemplary embodiments, the protective layers 402 on any adjacent spiral coils of the spring 401 are in contact with each other, based on the protective layer 402 covering the surface of the spring 401. Setting the protective layers 402 on adjacent spiral coils of the spring 401 in contact allows for higher damping performance of the connection portion 4, enabling faster vibration damping, reducing the number of rebounds of the spring 401, and improving the overall stiffness of the connection portion 4. Simultaneously, the gaps between adjacent spiral coils of the spring 401 are filled with the protective layer 402, preventing hard foreign objects from entering and becoming stuck between the spiral coils, thus reducing unnecessary wear on the elastic portion 3.

[0071] For the material of the protective layer 402, rubber, silicone, or polyurethane elastomer can all be used. Taking rubber as an example, when the spring 401 is made of metal, a micron-level groove structure can be formed on the surface of the spring 401 by plasma etching, so that the rubber can be vulcanized and attached to the surface of the spring 401 to form the protective layer 402. When manufacturing the connecting part 4 with the protective layer 402, the rubber raw material can be vulcanized on the raw material of the spring 401 first, and then the whole is shaped into a spiral connecting part 4.

[0072] For example, the elastic part 3 can be made of rubber with a hardness of 40HA-60HA, and the protective layer 402 can be made of rubber with a hardness of 60HA-80HA. The connecting part 4 and the elastic part 3 are connected as a composite by vulcanization, which can achieve a gradient stiffness distribution. The spring 401 is effective in isolating low-frequency vibrations, but its vibration isolation effect decreases in the high-frequency range (usually above several hundred Hz). Rubber materials generally have better vibration isolation performance in the high-frequency region. The composite of the connecting part 4 and the elastic part 3 combines the low-frequency advantages of the spring 401 and the high-frequency advantages of rubber, which can provide good elastic response while ensuring strength, effectively absorbing and isolating vibrations.

[0073] For the specific structure of the elastic part 3, please refer to... Figures 2 to 4 As shown, in some exemplary embodiments, the elastic part 3 is cylindrical, and the inner core 2 penetrates the elastic part 3 along its axial direction. Making the elastic part 3 cylindrical allows for more uniform radial vibration absorption, reduces stress concentration, and extends the service life of the elastic part 3. The inner core 2 penetrating the elastic part 3 along its axial direction provides stable support for the inner core 2, effectively isolating it from the suspension frame 1. Furthermore, the direct penetration of the inner core 2 through the elastic part 3 results in a simpler overall structure, smaller size, and reduced space occupation within the vehicle.

[0074] Correspondingly, the connecting part 4 can be configured as a cylindrical spiral with a uniform outer diameter, meaning that the outer diameter of each spiral coil in the connecting part 4 is equal. This configuration allows the connecting part 4 to more evenly receive the vibration load transmitted by the elastic part 3. Alternatively, in other embodiments, the elastic part 3 can be configured as a frustum shape, and the connecting part 4 as a variable-diameter spiral to fit the elastic part 3, and used in conjunction with a suspension frame 1 having a frustum-shaped receiving cavity 103.

[0075] Reference Figure 2 , Figure 4 , Figure 5 and Figure 6 Based on the principle that the inner core 2 passes through the elastic part 3 axially along the elastic part 3, in some exemplary embodiments, the elastic part 3 is provided with a through hole 301. The inner core 2 includes a cylindrical body 201 fixed in the through hole 301 and a core body 202 interference-fitted into the cylindrical body 201. The inner core 2 is connected to the power device through the core body 202. The through hole 301 in the elastic part 3 allows the inner core 2 to be inserted and connected. The inner core 2, including the cylindrical body 201 and the core body 202, can improve the manufacturability of the assembly between the inner core 2 and the elastic part 3.

[0076] In practical implementation, taking the elastic part 3 made of rubber as an example, the cylinder 201 and the elastic part 3 are first vulcanized together. An insertion hole 2011, slightly smaller than the outer shape of the core 202, is formed inside the cylinder 201. Then, the core 202 is pressed into the insertion hole 2011. This arrangement facilitates the assembly of the inner core 2 and the elastic part 3. The core 202 and the cylinder 201 are interference-fitted, and the cylinder 201 can provide sufficient deformation and tension to the core 202, allowing the core 202 to be firmly held in the corresponding position within the elastic part 3.

[0077] Preferably, the cylinder 201 can be formed by bending and extruding metal sheet. Extruded metal parts have a more uniform surface quality, can better withstand the pressure generated by the rubber, and facilitate the adhesion between the rubber and metal, improving the bonding strength between them. Further, the cylinder 201 can be made of steel plate, with an overall rectangular cylindrical shape and a length the same as the axial length of the elastic part 3. After connecting to the elastic part 3, the two open ends of the cylinder 201 are flush with the axial ends of the elastic part 3, and the cylinder 201 essentially completely covers the wall of the through hole 301. Correspondingly, the core 202 is a long strip with a rectangular cross-section, and after being interference-fitted with the cylinder 201, both ends extend beyond the cylinder 201. The two ends of the core 202 extending from the cylinder 201 have a through first mounting hole 2021 along the radial direction of the elastic part 3. The first mounting hole 2021 is used to bolt the core 202 to the power device. The core 202 can be formed by metal casting, for example, cast steel.

[0078] See Figures 1 to 4Based on the cylindrical shape of the elastic part 3, in some exemplary embodiments, at least one end of the elastic part 3 has a groove 302 in the axial direction, and the groove 302 is recessed into the elastic part 3 itself. By providing a groove 302 at at least one end of the elastic part 3 in the axial direction, a preset and controllable deformation space is provided for the elastic part 3. When the elastic part 3 is subjected to vibration load, the groove 302 guides the elastic part 3 to deform. The elastic part 3 preferentially deforms towards the groove 302, reducing stress concentration and making the elastic part 3 less prone to cracking under stress. At the same time, when the elastic part 3 is heated, the groove 302 can provide expansion space for the elastic part 3, reducing the additional stress generated by the expansion of the elastic part 3.

[0079] Regarding the specific form of the groove 302, it can be an annular groove or a strip groove. Preferably, it can be a multi-ring annular groove arranged coaxially with the elastic part 3. This type of groove is more conducive to the deformation of the elastic part 3 to absorb vibration loads. When using a strip groove, multiple strip grooves can be evenly distributed around the central axis of the elastic part 3, and the annular grooves are also coaxial with the central axis of the elastic part 3. This arrangement of the groove 302 can also improve the vibration absorption capacity of the elastic part 3.

[0080] Secondly, regarding the location of the groove 302, it can be provided at least at one end of the elastic part 3. Preferably, multiple grooves 302 can be symmetrically provided at both ends of the elastic part 3. This arrangement is beneficial to improving the vibration absorption stability of the elastic part 3, and can also improve the ability of the elastic part 3 to absorb vibration loads in the axial direction.

[0081] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, in some exemplary embodiments, the suspension frame 1 includes a first frame 101 and a second frame 102 connected together, and the first frame 101 and the second frame 102 enclose a receiving cavity 103. The suspension frame 1 can be connected to the vehicle body through the first frame 101 and / or the second frame 102. By configuring the suspension frame 1 to include the connected first frame 101 and the second frame 102, and having the first frame 101 and the second frame 102 jointly enclose the receiving cavity 103, the assembly resistance of the elastic part 3 is reduced, the assembly difficulty is lowered, and the assembly operation is more convenient. It also facilitates the removal of the elastic part 3 and the connecting part 4 inside the receiving cavity 103, making it easier to inspect and replace the elastic part 3 and the connecting part 4.

[0082] Reference Figure 7 and Figure 8As shown, preferably, the first frame 101 includes a base 1012, a first housing 1013, and two first connecting plates 1014. The bottom surface of the base 1012 is approximately triangular, and three third mounting holes 106 are provided at the three corners, respectively, through the base 1012. Bolts can be used to bolt the first frame 101 to the vehicle body through the third mounting holes 106. The first housing 1013 is a semi-circular cylindrical shape, with a first receiving groove 104 inside. The bottom end is integrally formed with the base 1012, and the two ends are integrally formed with the first connecting plates 1014. The first frame 101 can be made of cast metal.

[0083] Correspondingly, the second frame 102 includes a semi-circular cylindrical second shell 1022 and two integrally formed second connecting plates 1023 at its two ends. The second shell 1022 also has a first receiving groove 104. The first shell 1013 and the second shell 1022 together form a receiving cavity 103. The first connecting plate 1014 is connected to the second connecting plate 1023 to connect the first frame 101 to the second frame 102. The second frame 102 is made of cast metal or injection molded plastic.

[0084] Still refer to Figure 7 and Figure 8 As shown, the suspension frame 1 includes a first frame 101 and a second frame 102. In some exemplary embodiments, the first frame 101 is provided with a positioning groove 1011, and the second frame 102 is provided with a positioning block 1021. The positioning block 1021 can be inserted into the positioning groove 1011 to define the relative position of the first frame 101 and the second frame 102. By providing the positioning groove 1011 on the first frame 101 and the positioning block 1021 on the second frame 102, the relative position between the first frame 101 and the second frame 102 can be defined through the cooperation between the positioning block 1021 and the positioning groove 1011, making the relative position of the first frame 101 and the second frame 102 more accurate during assembly. At the same time, the meshing structure between the positioning block 1021 and the positioning groove 1011 can also resist the shear force at the contact surface between the first frame 101 and the second frame 102, improving the overall rigidity.

[0085] Specifically, the positioning block 1021 can be any cylindrical structure, and the positioning groove 1011 is adapted to the shape of the positioning block 1021. Preferably, the positioning block 1021 can be a T-shaped cross-section column, and the positioning groove 1011 can be a corresponding T-shaped cross-section groove. When the first frame 101 and the second frame 102 are fastened together, the positioning block 1021 is inserted into the positioning groove 1011, so that the first frame 101 is aligned with the second frame 102 and inserted together.

[0086] Preferably, based on the premise that the first frame 101 includes a base 1012, a first housing 1013, and two first connecting plates 1014, and the second frame 102 includes a second housing 1022 and two second connecting plates 1023, and the positioning block 1021 adopts a T-shaped cross-section column, a second mounting hole 105 can be provided that penetrates through the first connecting plate 1014 and the second connecting plate 1023. The second mounting hole 105 also penetrates the bottom of the positioning block 1021 and the positioning groove 1011. By using bolts 5 to pass through the second mounting hole 105 and tighten them with nuts, the second frame 102 can be tightened onto the first frame 101, completing the assembly of the suspension frame 1. The positioning block 1021 and the positioning groove 1011 can also serve to quickly position the second mounting hole 105.

[0087] When the connecting part 4 adopts a spiral structure and is vulcanized with the elastic part 3, during the process of assembling the combination of the elastic part 3 and the connecting part 4 into the suspension frame 1, the bolt 5 can be left untightened first, and the elastic part 3 and the connecting part 4 can be screwed into the first receiving groove 104 as a whole, and finally the bolt 5 can be tightened, which makes the assembly of the suspension structure in this embodiment more convenient.

[0088] It is worth noting that, regarding the suspension structure of this embodiment, based on the above exemplary implementations, in specific implementation, as a preferred embodiment, it is still based on... Figures 1 to 8 As shown, it may include, for example, a suspension frame 1, an elastic part 3, an inner core 2, and a connecting part 4.

[0089] The elastic part 3 is made of rubber and is columnar, with two coaxial grooves 302 at each of its axial ends.

[0090] The connecting part 4 is spiral-shaped, with the inner ring embedded in the elastic part 3 and the outer ring embedded in the suspension frame 1. The connecting part 4 includes a spring 401 and a protective layer 402 covering the spring 401. The protective layers 402 on any adjacent spiral coils of the spring 401 are in contact with each other.

[0091] The suspension frame 1 includes a first frame 101 and a second frame 102 connected together. The first frame 101 and the second frame 102 enclose a receiving cavity 103. The first frame 101 is provided with a T-shaped positioning groove 1011, and the second frame 102 is provided with a T-shaped positioning block 1021 that matches the shape of the positioning groove 1011.

[0092] The first frame 101 and the second frame 102 are made of cast steel, the spring 401 is made of fiber reinforced composite material, the protective layer 402 and the elastic part 3 are made of rubber, the cylinder 201 is made of steel plate extrusion molding, and the core 202 is made of cast steel.

[0093] In the preferred embodiment of the above suspension structure, the specific configuration and arrangement of the suspension frame 1, connecting part 4, elastic part 3, inner core 2 and bolt 5, etc., can still be referred to the description in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the suspension frame 1, connecting part 4, elastic part 3, inner core 2 and bolt 5, etc., can also be referred to the description in the above exemplary embodiments.

[0094] The suspension structure of this embodiment adopts the above design. By setting up a suspension frame 1, an elastic part 3, and an inner core 2, and connecting the power device to the inner core 2, when the power device vibrates, the vibration load is first transferred to the inner core 2, and then from the inner core 2 to the elastic part 3, where the elastic part 3 absorbs the vibration. The connection part 4, with an embedded portion, is provided, and this embedded portion is embedded in the suspension frame 1 and the elastic part 3. This enhances the bonding strength between the elastic part 3 and the suspension frame 1, making it less likely for the elastic part 3 to detach from the suspension frame 1 under vibration load, thus improving the reliability of the suspension.

[0095] An embodiment of the second aspect of this application provides a vehicle having the aforementioned suspension structure.

[0096] In the vehicle of this embodiment, multiple suspension structures are provided between its power unit and the vehicle body. For example, the power unit of the vehicle may be an electric motor, and three suspension structures are provided between the electric motor and the vehicle body to realize the three-point suspension layout of the electric motor.

[0097] Still with Figure 1 and Figure 2 Taking the suspension structure shown in the example as an example, in this embodiment of the vehicle, by setting this suspension structure, when the power unit vibrates, the vibration load is first transmitted to the inner core 2, and then from the inner core 2 to the elastic part 3. The elastic part 3 absorbs the vibration, reduces vibration and noise, and improves the vehicle's NVH (Noise, Vibration, Harshness) performance. The connection part 4 with an embedded portion is provided, and the embedded portion is embedded in the suspension frame 1 and the elastic part 3. This enhances the bonding strength between the elastic part 3 and the suspension frame 1. The elastic part 3 is less likely to detach from the suspension frame 1 when subjected to vibration loads, which helps improve the reliability of the suspension, enhances the reliability of the powertrain support, and thus improves the overall quality of the vehicle.

[0098] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A suspension structure, characterized in that: It includes a suspension frame (1) having a receiving cavity (103), an inner core (2) passing through the suspension frame (1), an elastic part (3) connecting the suspension frame (1) and the inner core (2), and a connecting part (4) provided between the suspension frame (1) and the elastic part (3). The suspension frame (1) can be installed on the vehicle body, and the inner core (2) can be connected to the power unit; The connecting part (4) connects the suspension frame (1) and the elastic part (3) together, and the connecting part (4) has an embedding portion that is embedded in at least one of the suspension frame (1) and the elastic part (3), which can prevent the elastic part (3) from detaching from the suspension frame (1).

2. The suspension structure according to claim 1, characterized in that: The connecting part (4) is spiral-shaped and nested on the elastic part (3), and the connecting part (4) is partially embedded in the suspension frame (1).

3. The suspension structure according to claim 2, characterized in that: The connecting part (4) includes a spring (401) and a protective layer (402) covering the spring (401).

4. The suspension structure according to claim 3, characterized in that: The protective layers (402) on any adjacent spiral coils of the spring (401) are in contact.

5. The suspension structure according to claim 1, characterized in that: The elastic part (3) is cylindrical, and the inner core (2) penetrates the elastic part (3) along the axial direction of the elastic part (3).

6. The suspension structure according to claim 5, characterized in that: The elastic part (3) is provided with a through hole (301). The inner core (2) includes a cylindrical body (201) fixed in the through hole (301) and a core body (202) interference-fitted into the cylindrical body (201). The inner core (2) is connected to the power device through the core body (202).

7. The suspension structure according to claim 5, characterized in that: At least one end of the elastic part (3) is provided with a groove (302) in the axial direction, and the groove (302) is recessed into the elastic part (3) itself.

8. The suspension structure according to any one of claims 1-7, characterized in that: The suspension frame (1) includes a first frame (101) and a second frame (102) connected together, and the first frame (101) and the second frame (102) enclose the receiving cavity (103).

9. The suspension structure according to claim 8, characterized in that: The first frame (101) is provided with a positioning groove (1011), and the second frame (102) is provided with a positioning block (1021); The positioning block (1021) can be inserted into the positioning slot (1011) to define the relative positions of the first frame (101) and the second frame (102).

10. A vehicle, characterized in that: The vehicle is provided with a suspension structure as described in any one of claims 1-9.

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