Damper, shock absorber and automobile

Abstract

The application relates to a damper, a shock absorber and an automobile. The damper comprises a shell, a shaft body and a support piece. The shaft body is arranged in the shell. The support piece is fixedly connected with the shell and is sleeved on the shaft body. The support piece is provided with a flexible buffer part which is in contact with the outer circumferential side of the shaft body and is used for flexibly supporting the shaft body in the radial direction of the shaft body. The flexible buffer part is arranged on the support ring. The support ring is in flexible contact with the shaft body through the flexible support part and supports the shaft body in the radial direction. During the movement of the shaft body, the flexible buffer part can buffer and absorb vibration, prevents the shaft body from colliding with the support ring, prevents large abnormal sound from being generated between the shaft body and the support ring, and improves the driving experience of users.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and more particularly to a damper, shock absorber, and automobile. Background Technology

[0002] In vehicle suspension systems, electromagnetic dampers are core components for dynamic damping between the vehicle body and chassis, and their performance directly affects ride comfort and driving safety. Existing electromagnetic dampers mainly consist of a stator assembly connected to the vehicle body and a mover assembly connected to the chassis suspension. The stator assembly's shaft passes through the mover assembly's housing, and a support ring is installed between the shaft and the housing. However, existing support rings have gaps between them and the shaft. During vehicle operation, these gaps can cause collisions, resulting in vibrations and abnormal noises, negatively impacting the driving experience.

[0003] Therefore, there is an urgent need to improve the problem of abnormal noise generated by existing electromagnetic dampers. Utility Model Content

[0004] This application provides a damper that improves the safety of the damper, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a damper is provided, comprising:

[0006] case;

[0007] A shaft is inserted through the housing;

[0008] A support member is fixedly connected to the housing and sleeved on the shaft. The support member is provided with a flexible buffer part, which contacts the outer peripheral side of the shaft and is used to flexibly support the shaft radially.

[0009] Optionally, the flexible buffer includes a friction-reducing structure and a buffer structure, both of which surround the shaft. The outer peripheral side of the friction-reducing structure is fixedly connected to the inner peripheral side of the buffer structure, and the inner peripheral side of the friction-reducing structure is slidably connected to the outer peripheral side of the shaft. The buffer structure is used to flexibly support the friction-reducing structure radially along the shaft.

[0010] Optionally, the friction-reducing structure has multiple raised lines facing the inner circumference of the shaft.

[0011] Optionally, grooves are formed between the plurality of said ridges, and the grooves are used to fill lubricant.

[0012] Optionally, the buffer structure is provided with an annular groove on at least one side along the axial direction of the shaft.

[0013] Optionally, the support member includes a first frame and the flexible buffer portion, the flexible buffer portion being fixedly connected to the first frame, and the first frame being used to support the flexible buffer portion.

[0014] Optionally, the inner peripheral side of the buffer structure is vulcanized and bonded to the friction-reducing structure, and the outer peripheral side of the buffer structure is vulcanized and bonded to the first skeleton.

[0015] Optionally, a notch is provided on the outer edge of the first skeleton.

[0016] Optionally, the first skeleton surrounds the shaft, and the first skeleton includes an axial support portion and a radial support portion fixedly connected. The axial support portion extends radially along the shaft, and the radial support portion extends axially along the shaft. The flexible buffer portion is fixedly connected to the inner circumferential side of the radial support portion.

[0017] Optionally, the support further includes a first flexible connecting portion and two first skeletons. The first flexible connecting portion connects the two first skeletons. The two radial support portions extend to opposite sides, and the two axial support portions extend to the same side. The two axial support portions are fixedly connected. A receiving groove is formed between the two axial support portions, the first flexible connecting portion, the buffer structure, the flexible buffer portion, and the shaft. The receiving groove is used to receive lubricant.

[0018] Optionally, the support further includes a second flexible connection portion, one side of which is fixedly connected to the axial support portion. The damper further includes a fixing member, the other side of which abuts against the fixing member. The fixing member is detachably connected to the housing and is used to fix the relative position of the support and the housing.

[0019] Optionally, the fastener includes a limiting part and a mounting part that are fixedly connected. The limiting part contacts the support member and is used to limit the support member. The mounting part is connected to the housing and is used to fix the limiting part.

[0020] Optionally, the limiting part is provided with a first axial limiting surface and a radial limiting surface, and the housing is provided with a mounting groove for accommodating the support member. The mounting groove is provided with a second axial limiting surface. Along the axial direction of the support member, the first axial limiting surface and the second axial limiting surface abut against the two axial sides of the support member to limit the axial direction of the support member. Along the radial direction of the support member, the radial limiting surface contacts the outer peripheral side of the support member to limit the radial direction of the support member.

[0021] Optionally, the fastener includes a mounting portion that extends radially outward along the shaft and has a connecting hole for mounting fasteners connected to the housing.

[0022] Optionally, the support member further includes a third flexible connection portion fixedly connected to the first frame, the third flexible connection portion being disposed between the first frame and the housing, and the third flexible connection portion sealingly connecting the first frame and the housing.

[0023] Optionally, the support further includes a fourth flexible connection portion, and the damper further includes a seal. The fourth flexible connection portion is fixedly connected to the first skeleton and the seal. The seal surrounds the shaft and abuts against the outer peripheral side of the shaft.

[0024] Optionally, the seal includes a second skeleton and a sealing lip, the second skeleton and the first skeleton surrounding the shaft, the second skeleton being fixedly connected to the first skeleton, the sealing lip being fixedly connected to the second skeleton, and the inner circumferential side of the sealing lip fitting against the outer circumferential side of the shaft.

[0025] Optionally, the inner circumferential side of the sealing lip is provided with at least one raised ridge.

[0026] Optionally, a limiting groove is provided on the outer peripheral side of the sealing lip, and an elastic element is provided in the limiting groove. The elastic element is used to compress the sealing lip radially along the shaft, so that the inner peripheral side of the sealing lip fits against the outer peripheral side of the shaft.

[0027] According to a second aspect of this application, a shock absorber is provided, including the aforementioned damper.

[0028] According to a third aspect of this application, an automobile is also provided, including the aforementioned damper or shock absorber.

[0029] In the damper of this application embodiment, a flexible buffer part is provided on the support ring. The support ring makes flexible contact with the shaft through the flexible support part and provides radial support to the shaft. This allows for buffering and vibration absorption during the movement of the shaft, preventing the shaft from colliding with the support ring, thereby preventing large abnormal noises between the two and improving the user's driving experience.

[0030] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments 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.

[0032] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0033] Figure 1 This is a cross-sectional structural schematic diagram of the damper assembly of the first type of support provided in an exemplary embodiment of this disclosure;

[0034] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the middle;

[0035] Figure 3 This is a cross-sectional structural schematic diagram of the first type of support provided in an exemplary embodiment of this disclosure;

[0036] Figure 4 This is a cross-sectional structural schematic diagram of the second type of support provided in an exemplary embodiment of this disclosure;

[0037] Figure 5 This is a cross-sectional view of the damper assembly of the second type of support provided in an exemplary embodiment of this disclosure;

[0038] Figure 6 This is a cross-sectional structural schematic diagram of the third type of support provided in the exemplary embodiments of this disclosure;

[0039] Figure 7 This is a cross-sectional view of the third type of support for the damper assembly provided in an exemplary embodiment of this disclosure.

[0040] Figure 8 This is a top view of the structure of the first type of support provided in the exemplary embodiments of this disclosure;

[0041] Figure 9 This is a cross-sectional structural schematic diagram of the fourth type of support provided in the exemplary embodiments of this disclosure;

[0042] Figure 10 This is a cross-sectional view of the fourth type of support member for the damper assembly provided in an exemplary embodiment of this disclosure.

[0043] Figure 11 This is a three-dimensional structural diagram of the damper provided in an exemplary embodiment of this disclosure;

[0044] Figure 12 This is a cross-sectional structural schematic diagram of the fifth type of support provided in the exemplary embodiments of this disclosure;

[0045] Figure 13 This is a cross-sectional structural diagram of the fifth type of support member for the damper assembly provided in an exemplary embodiment of this disclosure.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Housing; 11. Mounting groove; 111. Second axial limiting surface;

[0048] 2. Shaft;

[0049] 3. Support components;

[0050] 31. Flexible buffer section; 311. Friction-reducing structure; 312. Buffer structure; 313. Raised lines; 314. Groove; 315. Annular groove;

[0051] 32. First frame; 321. Notch; 322. Axial support; 323. Radial support;

[0052] 33. First flexible connecting part; 34. Second flexible connecting part; 35. Third flexible connecting part; 36. Fourth flexible connecting part; 37. Receiving groove;

[0053] 4. Fixing component; 41. Limiting part; 411. First axial limiting surface; 412. Radial limiting surface; 42. Mounting part; 421. Connecting hole;

[0054] 5. Sealing element; 51. Second skeleton; 52. Sealing lip; 521. Raised ridge; 522. Limiting groove; 53. Elastic element. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0056] According to the first aspect of this application, referring to Figures 1 to 3 This disclosure provides a damper, which includes a housing 1, a shaft 2 and a support 3. The shaft 2 passes through the housing 1, and the support 3 is fixedly connected to the housing 1 and sleeved on the shaft 2. The support 3 is provided with a flexible buffer part 31, which contacts the outer peripheral side of the shaft 2 and is used to flexibly support the shaft 2 radially.

[0057] During vehicle operation, road bumps cause radial displacement of the axle 2. At this time, the flexible buffer 31, which contacts the outer periphery of the axle 2, is compressed and undergoes elastic deformation. This absorbs the energy generated by the vibration of the axle 2 and converts it into heat, which is then dissipated into the air. As energy is continuously absorbed and converted, the vibration of the axle 2 rapidly decays, reducing its amplitude and frequency. Once the road surface stabilizes, the flexible buffer 31 elastically recovers, restoring the axle 2 to its initial position.

[0058] By providing a flexible buffer part 31 on the support member 3 that contacts the outer periphery of the axle 2, when the axle 2 vibrates, the flexible buffer part 31 is compressed and deformed to absorb the vibration energy and convert it into heat for dissipation, thereby suppressing the vibration of the axle 2, reducing the noise generated by the electromagnetic damper due to impact vibration, and improving the user's driving experience; by reducing the collision and wear between the axle 2 and the support member 3, the smoothness of the device operation is improved, the service life of the damper is extended, and the reliability and safety of the vehicle suspension system are ensured.

[0059] In some embodiments, the flexible buffer portion 31 is preferably made of PTFE (polytetrafluoroethylene).

[0060] In this embodiment, PTFE is selected as the material for the flexible buffer 31. Its self-lubricating properties reduce the coefficient of friction between the shaft 2 and the support 3, thereby reducing additional vibration and noise caused by friction. PTFE's excellent chemical stability and corrosion resistance can resist the erosion of various oils, acids, and alkalis during vehicle operation, ensuring the long-term reliable operation of the flexible buffer 31. PTFE's superior high and low temperature resistance adapts to the vehicle's operating requirements in extreme climatic environments, preventing hardening, softening, and other performance degradation, ensuring the overall service life of the damper, and improving the stability and reliability of the vehicle suspension system. Furthermore, the required physical and chemical properties can be obtained through vulcanization treatment to meet design requirements.

[0061] Reference Figure 2 and Figure 3 In some embodiments, the flexible buffer portion 31 includes a friction-reducing structure 311 and a buffer structure 312, both of which surround the shaft 2. The outer peripheral side of the friction-reducing structure 311 is fixedly connected to the inner peripheral side of the buffer structure 312, and the inner peripheral side of the friction-reducing structure 311 is slidably connected to the outer peripheral side of the shaft 2. The buffer structure 312 is used to flexibly support the friction-reducing structure 311 radially along the shaft 2.

[0062] In this embodiment, the inner circumference of the friction-reducing structure 311 is slidably connected to the shaft 2, and the flexible characteristics of the buffer structure 312 absorb the vibration energy of the shaft 2. The two work together to enhance the radial support stability. The buffer structure 312 provides flexible support to the friction-reducing structure 311 in the radial direction, which can buffer the impact force when the shaft 2 moves, suppress vibration transmission, and reduce the operating noise of the damper. By utilizing the layered design of the friction-reducing structure 311 and the buffer structure 312, the support function and the buffer function are separated. The friction-reducing structure 311 ensures the smoothness and wear resistance of the sliding contact, while the buffer structure 312 is used for elastic deformation vibration absorption, thereby improving the performance and service life of the flexible buffer part 31.

[0063] Reference Figure 2 and Figure 3 In some embodiments, the friction-reducing structure 311 is provided with multiple raised lines 313 on the inner peripheral side facing the shaft 2.

[0064] In this embodiment, by providing multiple raised lines 313 on the inner circumferential side of the friction-reducing structure 311 facing the shaft 2, the actual contact area between the friction-reducing structure 311 and the shaft 2 is reduced, thereby reducing the frictional resistance during relative motion and reducing wear. By reducing friction, energy loss during the movement of the shaft 2 is reduced, improving the working efficiency of the damper. Utilizing the discontinuous support formed on the contact surface by the raised lines 313 structure, when the shaft 2 vibrates, the raised lines 313 can generate local elastic deformation, which can disperse the impact force, effectively suppress resonance, further reduce the operating noise of the damper, and improve the stability and reliability of the device.

[0065] Reference Figure 3 In some embodiments, grooves 314 are formed between the multiple raised lines 313, and the grooves 314 are used to fill lubricant.

[0066] In this embodiment, by setting the groove 314 and filling it with lubricant, the lubricant can continuously lubricate the contact surface during the movement of the shaft 2, further reducing the coefficient of friction between the flexible buffer part 31 and the shaft 2, and reducing wear; thanks to the storage function of the groove 314 for the lubricant, the lubricant is guaranteed not to be lost quickly during long-term use, extending the lubrication cycle and reducing the maintenance frequency; the oil film formed by the lubricant filling the groove 314 buffers the impact force when the shaft 2 moves, absorbs vibration energy, and more effectively reduces the noise generated by the damper operation; the presence of lubricant in the groove 314 can isolate air and moisture, prevent oxidation and corrosion of the metal shaft 2 and aging of the flexible buffer part 31 material, improve the durability and service life of the damper, and ensure the stable operation of the vehicle suspension system.

[0067] Reference Figures 4 to 7 In some embodiments, the buffer structure 312 is provided with an annular groove 315 on at least one side along the axial direction of the shaft 2.

[0068] In this embodiment, by setting a buffer structure 312 and providing an annular groove 315 along the axial direction of the shaft 2, the buffer structure 312 generates elastic deformation when the shaft 2 moves, further absorbing vibration energy and enhancing the buffering effect on the shaft 2; the annular groove 315 provides deformation space for the buffer structure 312. When the shaft 2 vibrates, the buffer structure 312 can deform towards the area of ​​the annular groove 315, thereby deforming better and thus better absorbing vibration of the shaft 2.

[0069] Reference Figure 3 In some embodiments, the support member 3 includes a first frame 32 and a flexible buffer 31, the flexible buffer 31 being fixedly connected to the first frame 32, and the first frame 32 being used to support the flexible buffer 31.

[0070] In this embodiment, by setting a first frame 32, the first frame 32 provides a stable support foundation for the flexible buffer part 31, enhances the structural strength of the support member 3, avoids large deformation under the force generated by the movement of the shaft 2, and ensures that the buffer function is stable. With the rigidity of the first frame 32, the force on the flexible buffer part 31 is evenly distributed to other non-directly stressed positions, preventing local stress concentration from causing premature damage to the support member 3 and extending its service life.

[0071] Reference Figure 3 In some embodiments, the inner peripheral side of the buffer structure 312 is vulcanized and bonded to the friction-reducing structure 311, and the outer peripheral side of the buffer structure 312 is vulcanized and bonded to the first skeleton 32.

[0072] In this embodiment, the friction-reducing structure 311 and the first skeleton 32 are vulcanized and bonded by the buffer structure 312. By utilizing the characteristics of the cross-linking reaction of polymer materials during the vulcanization process, the buffer structure 312, the friction-reducing structure 311, and the first skeleton 32 form a molecular-level bond, which enhances the structural integrity of the flexible buffer part 31 and the first skeleton 32 and improves the structural stability.

[0073] Reference Figure 8 In some embodiments, the outer edge of the first frame 32 is provided with a plurality of notches 321.

[0074] In this embodiment, by setting a notch 321, the notch 321 is used as an operational force point during installation and disassembly (such as a wrench holder or a clamping position), thereby improving the ease of assembly.

[0075] Reference Figure 2 and Figure 3In some embodiments, the first frame 32 surrounds the shaft 2. The first frame 32 includes an axial support portion 322 and a radial support portion 323 that are fixedly connected. The axial support portion 322 extends radially along the shaft 2, and the radial support portion 323 extends axially along the shaft 2. The flexible buffer portion 31 is fixedly connected to the inner circumferential side of the radial support portion 323.

[0076] In this embodiment, the first frame 32 includes a fixedly connected axial support portion 322 and a radial support portion 323, which surround the shaft 2 and provide stable support for the flexible buffer portion 31 in both axial and radial dimensions. The axial support portion 322 extends radially along the shaft 2, and the radial support portion 323 extends axially along the shaft 2. Their perpendicular combination forms a stable structure, dispersing the forces generated by the movement of the shaft 2 in various directions, effectively improving the structural strength of the first frame 32 itself, thereby providing a more reliable support foundation for the flexible buffer portion 31, stabilizing the position of the support member 3, preventing the flexible buffer portion 31 from deforming and shifting under stress, and continuously providing support and buffering for the shaft 2, ensuring the stability and reliability of the damper operation.

[0077] Reference Figure 9 and Figure 10 In some embodiments, the support member 3 further includes a first flexible connection portion 33 and two first skeletons 32. The first flexible connection portion 33 connects the two first skeletons 32. The two radial support portions 323 extend to opposite sides, and the two axial support portions 322 extend to the same side. The two axial support portions 322 are fixedly connected. A receiving groove 37 is formed between the two axial support portions 322, the first flexible connection portion 33, the buffer structure 312, the flexible buffer portion 31, and the shaft 2. The receiving groove 37 is used to receive lubricant.

[0078] In this embodiment, by setting a first flexible connecting part 33 to connect two first skeletons 32 and constructing a receiving groove 37, the combined structure of the two first skeletons 32 enhances the overall rigidity and stability of the support member 3, making the support member 3 less prone to deformation or damage under complex stress conditions; the receiving groove 37 provides a sufficient storage area for lubricant, ensuring continuous and effective lubrication between the shaft 2 and the support member 3; by using the receiving groove 37 to contain lubricant, the lubricant can be evenly distributed on the contact surface during the movement of the shaft 2, reducing the coefficient of friction, reducing wear, and extending the service life of the support member 3 and the shaft 2.

[0079] Reference Figures 4 to 7 In some embodiments, the support member 3 further includes a second flexible connection portion 34, one side of which is fixedly connected to the axial support portion 322. The damper also includes a fixing member 4, the other side of which abuts against the fixing member 4. The fixing member 4 is detachably connected to the housing 1 and is used to fix the relative position of the support member 3 and the housing 1.

[0080] In this embodiment, a second flexible connection 34 is provided between the axial support 322 and the fixing member 4. The flexibility of the second flexible connection 34 improves the damping sealing performance, and the elasticity of the second flexible connection 34 can provide pre-tightening force to ensure that the fixing member 4 stably fixes the support member to the housing 1. In addition, the detachable connection of the fixing member 4 to the housing 1 facilitates fixing the relative position of the support member 3 and the housing 1, ensuring that the support member 3 will not shift during vehicle operation, and facilitating the installation, disassembly, and maintenance of the support member 3.

[0081] Reference Figure 10 and Figure 11 In some embodiments, the fixing member 4 includes a limiting part 41 and a mounting part 42 that are fixedly connected. The limiting part 41 contacts the support member 3 and is used to limit the support member 3. The mounting part 42 is connected to the housing 1 and is used to fix the limiting part 41.

[0082] In this embodiment, by providing the mounting part 42 and connecting it to the housing 1, the limiting part 41 is firmly fixed, thereby stabilizing the support member 3 and enhancing the reliability of the entire damper structure. By providing the limiting part 41, which directly contacts the support member 3, the relative position of the support member 3 and the housing 1 is limited, reducing axial or radial displacement of the support member 3 during vehicle operation and ensuring it remains in the working position. The limiting effect of the limiting part 41 on the support member 3 ensures the stability of the relative position between the axle 2 and the support member 3, allowing the flexible buffer part 31 of the support member 3 to continuously and effectively provide radial support and vibration buffering for the axle 2.

[0083] Reference Figure 2 and Figure 11 In some embodiments, the limiting part 41 is provided with a first axial limiting surface 411 and a radial limiting surface 412. The housing 1 is provided with a mounting groove 11 for accommodating the support member 3. The mounting groove 11 is provided with a second axial limiting surface 111. Along the axial direction of the support member 3, the first axial limiting surface 411 and the second axial limiting surface 111 abut against the two axial sides of the support member 3 to limit the axial direction of the support member 3. Along the radial direction of the support member 3, the radial limiting surface 412 contacts the outer peripheral side of the support member 3 to limit the radial direction of the support member 3.

[0084] In this embodiment, by setting a first axial limiting surface 411 and a second axial limiting surface 111 in the mounting groove 11, the first axial limiting surface 411 and the second axial limiting surface 111 respectively abut against both sides of the support member 3, forming a bidirectional axial constraint, effectively preventing the support member 3 from axially shifting during vehicle operation and ensuring its fixed position. By setting a radial limiting surface 412 in the limiting part 41, the radial limiting surface 412 is in close contact with the outer periphery of the support member 3, radially limiting the support member 3 and preventing radial displacement, thus ensuring the relative position stability of the support member 3 and the axle 2. Through multi-directional limiting by the limiting part 41, the stability of the support member 3 installation is improved, enabling the support member 3 to maintain a stable posture under complex vibration conditions and fully exert its supporting and buffering function on the axle 2. By reliably limiting the support member 3 axially and radially, abnormal friction and collision between the axle 2 and the support member 3 caused by the displacement of the support member 3 are reduced, the operating noise of the damper is reduced, and its service life and the stability and reliability of the vehicle suspension system are improved. The radial limiting surface 412 directly contacts and limits the outer periphery of the support member 3, eliminating the need for complex assembly steps and special installation tools. This simplifies the installation process, reduces the technical requirements for installers and the difficulty of the installation process, and improves assembly efficiency. At the same time, the multi-faceted limiting of the limiting part 41 reduces the machining accuracy requirements of the mounting groove 11, thereby reducing machining steps and lowering machining costs.

[0085] Reference Figure 1 and Figure 2 In some embodiments, the fastener 4 includes a mounting portion 42 that extends radially outward along the shaft 2 and has a connecting hole 421 for mounting fasteners connected to the housing 1.

[0086] In this embodiment, the mounting part 42 and the housing 1 are connected by fasteners. Common standard parts such as bolts and screws can be used to quickly and securely connect the fixing part 4 and the housing 1 without the need for customized special connecting parts, thus reducing the cost of accessories. The connection by fasteners simplifies the installation operation, and ordinary tools can be used to complete the installation, reducing the installation difficulty and improving the assembly efficiency.

[0087] During installation, the support 3 is placed on the shaft 2, and then the support 3 is pushed down along the shaft 2. When the support 3 is pushed into the mounting groove 11 of the housing 1, the fixing member 4 is slid down along the shaft 2 to the support 3 and the housing 1. At this time, the fastener is used to pass through the connecting hole 421 of the fixing member 4 to connect with the housing 1 and tighten it. As the fastener is tightened, the fixing member 4 further presses the support 3 into the mounting groove 11 of the housing 1, thereby restricting the axial and radial movement of the support 3.

[0088] Reference Figures 4 to 7In some embodiments, the support member 3 further includes a third flexible connection portion 35 fixedly connected to the first frame 32. The third flexible connection portion 35 is disposed between the first frame 32 and the housing 1, and the third flexible connection portion 35 seals the connection between the first frame 32 and the housing 1.

[0089] In this embodiment, by setting a third flexible connection part 35, the first frame 32 is made to fit the shell 1, thereby improving the sealing performance and preventing external dust, moisture and other impurities from entering the damper. This reduces the problems caused by impurities, such as increased wear between the shaft 2 and the support 3 and lubricant failure, and ensures a clean environment inside the damper.

[0090] Reference Figure 12 and Figure 13 In some embodiments, the support member 3 further includes a fourth flexible connection portion 36, and the damper further includes a seal 5. The fourth flexible connection portion 36 is fixedly connected to the first frame 32 and the seal 5. The seal 5 surrounds the shaft 2, and the inner circumferential side of the seal 5 abuts against the outer circumferential side of the shaft 2.

[0091] In this embodiment, the first frame 32 and the sealing element 5 are fixedly connected by the fourth flexible connection part 36. The sealing element 5 is in close contact with the shaft 2 to prevent external dust, mud, water vapor and other impurities from entering the damper. This reduces the problems caused by impurities, such as increased wear of the shaft 2 and failure of lubricant, and ensures a clean environment inside the damper.

[0092] In some embodiments, the buffer structure 312, the first flexible connecting part 33, the second flexible connecting part 34, the third flexible connecting part 35, and the fourth flexible connecting part 36 are made of rubber and can be vulcanized to obtain the required physical and chemical properties to meet design requirements. In practical applications, the buffer structure 312, the first flexible connecting part 33, the third flexible connecting part 35, the second flexible connecting part 34, and the fourth flexible connecting part 36 are mainly divided according to function. They can be independent entities or a whole. When they are a whole, they can be integrally molded.

[0093] Reference Figure 12 and Figure 13 In some embodiments, the seal 5 includes a second skeleton 51 and a sealing lip 52, which surround the shaft 2. The second skeleton 51 is fixedly connected to the first skeleton 32, and the sealing lip 52 is fixedly connected to the second skeleton 51. The inner circumferential side of the sealing lip 52 is in contact with the outer circumferential side of the shaft 2.

[0094] In this embodiment, by setting a second skeleton 51 and a sealing lip 52, the rigid structure of the second skeleton 51 provides stable support for the sealing lip 52, enhances the overall strength of the seal 5, prevents the sealing lip 52 from failing due to deformation under stress, and ensures a continuous and reliable sealing effect. By setting the sealing lip 52, the inner circumference of the sealing lip 52 is tightly fitted with the outer circumference of the shaft 2, forming an effective sealing barrier that prevents external dust, moisture, and impurities from entering the damper, preventing the shaft 2 and support 3 from experiencing accelerated wear due to contamination, and protecting the internal components of the damper.

[0095] Reference Figure 12 and Figure 13 In some embodiments, the inner circumferential side of the sealing lip 52 is provided with at least one raised ridge 521.

[0096] In this embodiment, by setting the convex ribs 521, each convex rib 521 can form a sealing band with the outer periphery of the shaft 2, and multiple convex ribs 521 can form multiple sealing bands to ensure the sealing effect. At the same time, the convex ribs 521 can elastically deform. When the shaft 2 vibrates or displaces, the convex ribs 521 can adaptively adjust the contact state with the shaft 2 to maintain a tight fit, enhance the adaptability of the sealing lip 52 to the movement of the shaft 2, ensure the long-term stable sealing performance of the damper, effectively prevent the intrusion of external impurities, and improve the reliability of the damper operation.

[0097] Reference Figure 12 and Figure 13 In some embodiments, a limiting groove 522 is provided on the outer peripheral side of the sealing lip 52, and an elastic element 53 is provided in the limiting groove 522. The elastic element 53 is used to compress the sealing lip 52 radially along the shaft 2 so that the inner peripheral side of the sealing lip 52 fits against the outer peripheral side of the shaft 2.

[0098] In this embodiment, by setting an elastic element 53, the elastic element 53 applies a continuous and stable compressive force to the sealing lip 52 in the radial direction of the shaft 2, ensuring that the inner circumference of the sealing lip 52 is always tightly attached to the outer circumference of the shaft 2. Even if the shaft 2 vibrates or displaces, the elastic element 53 can maintain the reliable sealing effect of the sealing element 5.

[0099] According to a second aspect of this application, a shock absorber is provided, including the aforementioned damper, which has all the beneficial effects of the aforementioned damper, as will not be repeated here.

[0100] According to a third aspect of this application, an automobile is also provided, including the aforementioned damper or shock absorber, which has all the beneficial effects of the aforementioned damper or shock absorber, as will not be repeated here.

[0101] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this disclosure does not make any specific restrictions.

[0102] In the description of this application, 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0103] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0104] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0105] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A damper, characterized in that, include: case; A shaft is inserted through the housing; A support member is fixedly connected to the housing and sleeved on the shaft. The support member is provided with a flexible buffer part, which contacts the outer peripheral side of the shaft and is used to flexibly support the shaft radially.

2. The damper according to claim 1, characterized in that, The flexible buffer includes a friction-reducing structure and a buffer structure, both of which are surrounding the shaft. The outer peripheral side of the friction-reducing structure is fixedly connected to the inner peripheral side of the buffer structure, and the inner peripheral side of the friction-reducing structure is slidably connected to the outer peripheral side of the shaft. The buffer structure is used to flexibly support the friction-reducing structure radially along the shaft.

3. The damper according to claim 2, characterized in that, The friction-reducing structure has multiple raised lines facing the inner circumference of the shaft.

4. The damper according to claim 3, characterized in that, Grooves are formed between the multiple raised lines, and the grooves are used to fill lubricant.

5. The damper according to claim 2, characterized in that, The buffer structure has an annular groove on at least one side along the axial direction of the shaft.

6. The damper according to claim 2, characterized in that, The support member includes a first frame and the flexible buffer portion, the flexible buffer portion being fixedly connected to the first frame, and the first frame being used to support the flexible buffer portion.

7. The damper according to claim 6, characterized in that, The inner circumferential side of the buffer structure is vulcanized and bonded to the friction-reducing structure, and the outer circumferential side of the buffer structure is vulcanized and bonded to the first skeleton.

8. The damper according to claim 6, characterized in that, The outer edge of the first skeleton has a notch.

9. The damper according to claim 6, characterized in that, The first frame surrounds the shaft and includes an axial support portion and a radial support portion fixedly connected. The axial support portion extends radially along the shaft and the radial support portion extends axially along the shaft. The flexible buffer portion is fixedly connected to the inner circumferential side of the radial support portion.

10. The damper according to claim 9, characterized in that, The support also includes a first flexible connecting part and two first skeletons. The first flexible connecting part connects the two first skeletons. The two radial support parts extend to opposite sides, and the two axial support parts extend to the same side. The two axial support parts are fixedly connected. A receiving groove is formed between the two axial support parts, the first flexible connecting part, the buffer structure, the flexible buffer part and the shaft. The receiving groove is used to receive lubricant.

11. The damper according to claim 9, characterized in that, The support also includes a second flexible connection part, one side of which is fixedly connected to the axial support part. The damper also includes a fixing member, the other side of which abuts against the fixing member. The fixing member is detachably connected to the housing and is used to fix the relative position of the support and the housing.

12. The damper according to claim 11, characterized in that, The fastener includes a limiting part and a mounting part that are fixedly connected. The limiting part contacts the support member and is used to limit the support member. The mounting part is connected to the housing and is used to fix the limiting part.

13. The damper according to claim 12, characterized in that, The limiting part is provided with a first axial limiting surface and a radial limiting surface. The housing is provided with a mounting groove for accommodating the support member. The mounting groove is provided with a second axial limiting surface. Along the axial direction of the support member, the first axial limiting surface and the second axial limiting surface abut against the two axial sides of the support member to limit the axial movement of the support member. Along the radial direction of the support member, the radial limiting surface contacts the outer peripheral side of the support member to limit the radial movement of the support member.

14. The damper according to claim 12, characterized in that, The fastener includes a mounting portion that extends radially outward along the shaft and has a connecting hole for mounting fasteners that are connected to the housing.

15. The damper according to claim 6, characterized in that, The support member further includes a third flexible connection portion fixedly connected to the first frame. The third flexible connection portion is disposed between the first frame and the housing, and the third flexible connection portion seals and connects the first frame and the housing.

16. The damper according to claim 6, characterized in that, The support also includes a fourth flexible connection, and the damper also includes a seal. The fourth flexible connection is fixedly connected to the first frame and the seal. The seal surrounds the shaft and abuts against the outer peripheral side of the shaft.

17. The damper according to claim 16, characterized in that, The seal includes a second skeleton and a sealing lip. The second skeleton and the first skeleton surround the shaft. The second skeleton is fixedly connected to the first skeleton. The sealing lip is fixedly connected to the second skeleton. The inner circumferential side of the sealing lip is attached to the outer circumferential side of the shaft.

18. The damper according to claim 17, characterized in that, The inner circumference of the sealing lip is provided with at least one raised ridge.

19. The damper according to claim 17, characterized in that, A limiting groove is provided on the outer periphery of the sealing lip, and an elastic element is provided in the limiting groove. The elastic element is used to compress the sealing lip radially along the shaft, so that the inner periphery of the sealing lip fits against the outer periphery of the shaft.

20. A shock absorber, characterized in that, Includes the damper described in any one of claims 1-19.

21. A car, characterized in that, Includes the damper as described in any one of claims 1-19 or the shock absorber as described in claim 20.

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