Shock absorber, damping assembly and vehicle

Abstract

The utility model relates to a shock absorber, a damping assembly and a vehicle. The shock absorber comprises a linear motor, a spring assembly and a hydraulic bushing. The linear motor is provided with a stator and a rotor; the spring assembly is used for providing elastic force between the stator and the rotor; the hydraulic bushing is arranged between the linear motor and a vehicle body of the vehicle; the hydraulic bushing is arranged between the spring assembly and a vehicle body of the vehicle; according to the shock absorber, the hydraulic bushing is integrated on the linear motor, vibration energy is attenuated in the mode that the hydraulic bushing consumes energy through flowing of the fluid in the cavity, and the shock absorption effect on high-frequency vibration can be improved. The hydraulic bushing provides a good damping effect without depending on the large storage amount of fluid in the cavity, so that the size can be relatively small, the whole shock absorber can be controlled to have the relatively small size so as to be conveniently integrated on equipment such as a vehicle, the hydraulic bushing is arranged outside the linear motor, and the assembly precision and the assembly difficulty are relatively lower.

Description

Technical Field

[0001] This application relates to the field of vehicle shock absorption technology, and more particularly to a shock absorber, damping component, and vehicle. Background Technology

[0002] Shock absorbers are commonly used in vehicle suspension systems and other equipment to reduce external impacts. To increase the shock absorber's response range to external vibrations, a linear motor is connected to the vehicle body via a bushing. However, most existing rubber bushings are made of pure rubber, which has poor damping performance and offers limited improvement to user ride comfort. Utility Model Content

[0003] This application provides a shock absorber, a damping component, and a vehicle that improves user ride comfort, thereby at least partially solving the aforementioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a shock absorber is provided, comprising:

[0005] A linear motor has a stator and a mover;

[0006] A spring assembly for providing an elastic force between the stator and the mover;

[0007] A hydraulic bushing is disposed between the linear motor and the vehicle body;

[0008] The hydraulic bushing is disposed between the spring assembly and the vehicle body to provide damping force between the spring assembly and the vehicle body.

[0009] Optionally, in some embodiments of this application, the shock absorber further includes:

[0010] A base is disposed between the hydraulic bushing and the linear motor to connect the hydraulic bushing and the linear motor as a whole.

[0011] Optionally, in some embodiments of this application, the shock absorber further includes:

[0012] The housing provides a groove for positioning and mounting the hydraulic bushing to the linear motor, the hydraulic bushing being at least partially accommodated within the groove.

[0013] Optionally, in some embodiments of this application, the seat groove is recessed on the side of the seat body away from the linear motor, and the wall surface of the seat body forming the seat groove is in surface contact with the hydraulic bushing.

[0014] Optionally, in some embodiments of this application, the hydraulic bushing is provided with:

[0015] The first assembly part is embedded in the seat groove and forms a surface contact with the inner wall of the seat groove formed by the seat body;

[0016] The second assembly part is located on the side of the first assembly part away from the linear motor;

[0017] The second assembly part is fixedly connected to the base body.

[0018] Optionally, in some embodiments of this application, the second mounting portion protrudes at least partially from the first mounting portion in a first direction different from the sliding direction of the mover.

[0019] Optionally, in some embodiments of this application, the second mounting portion is at least partially embedded in the seat groove.

[0020] Optionally, in some embodiments of this application, the shock absorber further includes:

[0021] The fork arm is connected to the linear motor;

[0022] The fork arm and the hydraulic bushing are respectively located at opposite ends of the linear motor.

[0023] Optionally, in some embodiments of this application, the linear motor includes:

[0024] The housing is used to position and mount the stator and the mover.

[0025] Optionally, in some embodiments of this application, a receiving cavity is formed inside the housing; the stator is at least partially disposed within the receiving cavity; and the hydraulic bushing is located outside the receiving cavity.

[0026] Optionally, in some embodiments of this application, the linear motor further includes:

[0027] An isolation cover is disposed between the housing and the base;

[0028] The isolation cover forms an inner cavity to accommodate the stator; the stator is at least partially slidably disposed within the inner cavity.

[0029] Optionally, in some embodiments of this application, the spring assembly includes:

[0030] A buffer spring is disposed between the housing and the base.

[0031] Optionally, in some embodiments of this application, the spring assembly further includes:

[0032] The first type of contact pad is disposed on the outside of the housing;

[0033] The end of the buffer spring away from the seat body abuts against the first type of contact pad.

[0034] Optionally, in some embodiments of this application, the housing is provided with:

[0035] The limiting part protrudes from the outer wall of the housing along a second direction different from the sliding direction of the moving part;

[0036] The first type of contact pad is disposed between the limiting part and the buffer spring.

[0037] Optionally, in some embodiments of this application, the spring assembly further includes:

[0038] The second type of contact pad is disposed between the seat and the buffer spring;

[0039] The end of the buffer spring away from the housing abuts against the second type of contact pad.

[0040] According to a second aspect of this application, a damping assembly is provided for use in a shock absorber having a linear motor, the damping assembly comprising:

[0041] The base is fixed to the mover or the mover of the linear motor;

[0042] Hydraulic bushings are installed to the base body;

[0043] The seat body is at least partially constructed as an annular structure and has a seat groove to allow the hydraulic bushing to be at least partially embedded in the seat body.

[0044] Optionally, in some embodiments of this application, the hydraulic bushing is provided with:

[0045] The first assembly part is embedded in the seat groove and forms a surface contact with the inner wall of the seat groove formed by the seat body;

[0046] The second assembly part is fixedly connected to the base body.

[0047] Optionally, in some embodiments of this application, the second mounting portion protrudes at least partially from the first mounting portion in a direction other than the axial direction of the annular structure.

[0048] Optionally, in some embodiments of this application, the second mounting portion is at least partially embedded in the seat groove.

[0049] Optionally, in some embodiments of this application, the damping component further includes:

[0050] End cap, connected to the hydraulic bushing;

[0051] The hydraulic bushing is located between the end cap and the seat.

[0052] According to a third aspect of this application, a vehicle is provided, including a shock absorber as described above, or including a damping component as described above.

[0053] In the shock absorber of this application embodiment, a hydraulic bushing is installed on the linear motor. By integrating the hydraulic bushing, the vibration energy is attenuated by the flow of fluid in the chamber to consume energy. This enables the shock absorber to respond to a wider range of vibration bandwidth, improves the damping effect on high-frequency vibrations, and thus improves the ride comfort of the vehicle with the integrated shock absorber.

[0054] Furthermore, hydraulic bushings do not rely on a large amount of fluid stored in the chamber to provide better shock absorption, so their size can be relatively small. This allows the overall size of the shock absorber to be relatively small so that it can be easily integrated into vehicles and other equipment. Moreover, the hydraulic bushing is located between the spring assembly and the body, which allows the hydraulic bushing to be used to further attenuate the vibration energy transmitted to the body when the spring assembly is working, thereby further improving ride comfort.

[0055] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0056] 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.

[0057] 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.

[0058] Figure 1 This is a schematic diagram of the overall structure of the shock absorber provided in an exemplary embodiment of this application;

[0059] Figure 2 This is a schematic diagram of the shock absorber provided in an exemplary embodiment of this application from another perspective;

[0060] Figure 3 yes Figure 2 The shock absorber shown is a cross-sectional view along AA.

[0061] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle;

[0062] Figure 5 This is an exploded view of the damping component provided in an exemplary embodiment of this application;

[0063] Figure 6 This is a schematic diagram of the overall structure of the vehicle provided in an exemplary embodiment of this application.

[0064] Explanation of reference numerals in the attached figures:

[0065] 100. Damping components;

[0066] 110. Seat body; 111. Annular structure; 112. Seat groove;

[0067] 120. Hydraulic bushing; 121. First assembly section; 122. Second assembly section;

[0068] 130. End cap;

[0069] 200. Linear motor; 210. Stator; 220. Housing; 221. Receiving cavity; 222. Limiting part; 230. Isolation cover; 231. Inner cavity;

[0070] 10. Shock absorbers;

[0071] 300. Spring assembly; 310. Buffer spring; 320. Type I contact pad; 330. Type II contact pad;

[0072] 400, fork arm;

[0073] 1. Vehicles;

[0074] L1, first direction; L2, second direction; L3, axial direction of the ring structure; X1, sliding direction of the mover. Detailed Implementation

[0075] 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.

[0076] According to the first aspect of this application, referring to Figures 1 to 5 As shown, a damping assembly 100 is provided for use in a shock absorber 10 having a linear motor 200. The damping assembly 100 includes a base 110 and a hydraulic bushing 120.

[0077] The base 110 is fixed to the mover or stator 210 of the linear motor 200. The hydraulic bushing 120 is mounted to the base 110. At least a portion of the base 110 is configured as an annular structure and has a seat groove 112 to allow the hydraulic bushing 120 to be at least partially embedded in the base 110, such that the hydraulic bushing 120 is integrated into the base 110.

[0078] The damping component 100 formed by the above scheme, when integrated into the linear motor 200, can attenuate vibration energy by dissipating energy through fluid flow within the chamber via the hydraulic bushing 120, thus improving the damping effect for high-frequency vibrations. In contrast, conventional shock absorbers 10, which integrate the linear motor 200 and a spring, often rely on the spring for better damping of mid- and mid-to-high-frequency vibrations. Integrating the hydraulic bushing 120 into the linear motor 200 allows for further assembly with springs, fork arms 400, and other structures to form the shock absorber 10, enabling it to provide damping over a wider frequency range and further improving the damping effect. Furthermore, the hydraulic bushing 120 does not rely on a large fluid storage capacity within the chamber to provide good damping, allowing for a relatively small size and overall compact design of the shock absorber 10. Using the base 110 to assemble the bushing and linear motor 200 allows the hydraulic bushing 120 to be positioned outside the linear motor 200, reducing assembly precision requirements and difficulty.

[0079] Furthermore, when used in conjunction with the spring on the shock absorber, one end of the spring can be connected to the hydraulic bushing 120 to transmit force. For example, the end of the spring connected to the vehicle body can be integrated with the hydraulic bushing 120, so that the hydraulic bushing 120 can be further used to buffer the vibration transmitted from the spring to the vehicle body, thereby further improving the ride comfort of the vehicle.

[0080] Simultaneously, the hydraulic bushing 120 is at least partially accommodated within the seat groove 112, allowing the seat groove 112 formed on the seat body 110 to be used for positioning and mounting the hydraulic bushing 120 to the linear motor 200. Specifically, the wall surface of the seat body 110 forming the seat groove 112 can be configured to make surface contact with the hydraulic bushing 120, thereby limiting the hydraulic bushing 120 using the seat body 110. In this application, the hydraulic bushing 120 is integrated into the linear motor 200 to form at least a portion of the shock absorber 10, thereby enabling its integration as an active suspension between the vehicle body and wheels to provide shock absorption.

[0081] The specific structure of the hydraulic bushing 120 for achieving vibration damping is something that those skilled in the art can flexibly configure according to actual needs. For example, the hydraulic bushing 120 may include a main body made of a material such as rubber with plastic deformation capability, and a flow channel for fluid flow formed on the hydraulic bushing 120. When the hydraulic bushing 120 is impacted, the main body undergoes plastic deformation, and the fluid is compressed and flows within the flow channel, converting the vibration energy into heat generated by friction between the fluid and the wall of the flow channel formed by the fluid flow. This heat is dissipated through the wall thickness of the hydraulic bushing 120, thus achieving vibration attenuation. This application does not elaborate on the specific details of this structure, and these specific structures are not shown in the accompanying drawings.

[0082] In some embodiments, refer to Figure 4 and Figure 5 As shown, the seat groove 112 is recessed into the side of the seat body 110 away from the linear motor 200. In this way, the hydraulic bushing 120 is at least partially embedded in the seat groove 112, which can limit the overall size of the damping assembly 100. Thus, for example, when the damping assembly 100 is integrated into the linear motor 200 to form at least a part of the shock absorber 10, the overall size of the shock absorber 10 can be limited. For example, the axial dimension of the shock absorber 10 (i.e., the dimension in the moving part sliding direction X1 of the linear motor 200) can be controlled within a reasonable range, which is beneficial for the integrated use of the shock absorber 10 in equipment with limited assembly space, such as vehicles.

[0083] In some embodiments, refer to Figure 5 As shown, the hydraulic bushing 120 includes a first assembly part 121 and a second assembly part 122. The first assembly part 121 is embedded in the seat groove 112 and forms a surface contact with the inner wall of the seat groove 112, achieving stable positioning and installation of the hydraulic bushing 120 within the seat groove 112 through surface contact. The second assembly part 122 is fixedly connected to the seat body 110. This spatial separation of at least a portion of the positioning and fitting structure between the hydraulic bushing 120 and the seat body 110, and at least a portion of the fixed connection structure between the hydraulic bushing 120 and the seat body 110, facilitates independent design of the structures realizing their respective functions and allows for adaptive design of the specific fit between the hydraulic bushing 120 and the seat body 110 according to the corresponding dimensions of different linear motors 200. The second assembly part 122 can be fixed to the seat body 110 through specific connection methods such as interference fit, threaded connection, and snap-fit. The specific fixed connection structure between the second assembly part 122 and the seat body 110 is not shown in the attached figure.

[0084] In some embodiments, the second mounting portion 122 protrudes at least partially from the first mounting portion 121 in a direction different from the axial direction L3 of the annular structure. Specifically, the damping component 100 can be positioned at one end of the axial direction of the linear motor 200, such that the axial direction L3 of the annular structure is parallel to the sliding direction X1 of the linear motor 200's mover. That is, the second mounting portion 122 protrudes at least partially from the first mounting portion 121 in a first direction L1 different from the sliding direction X1 of the linear motor 200's mover. This arrangement allows the first mounting portion 121 and the second mounting portion 122 to form a stepped structure, and the seat 110 can be adaptively formed with corresponding mating surfaces, thereby providing limiting and fixing effects on the hydraulic bushing 120 at different positions of the seat 110.

[0085] In the specific design, the second assembly part 122 is at least partially embedded in the seat groove 112. The wall thickness of the seat body 110 can be used to protect the second assembly part 122 and the first assembly part 121, thereby enabling the hydraulic bushing 120 to work more stably.

[0086] According to the second aspect of this application, referring to Figures 1 to 5 As shown, a shock absorber 10 is provided, which integrates at least a portion of the structure of the aforementioned damping assembly 100, thereby reducing assembly difficulty. For example, the shock absorber 10 includes: a linear motor 200, a spring assembly 300, and a hydraulic bushing 120.

[0087] The linear motor 200 includes a stator 210 and a mover. The stator 210 and the mover operate through electromagnetic induction. Simply put, when the linear motor 200 is operating, the stator 210 is energized, generating a changing magnetic field. This changing magnetic field allows the mover to slide relative to the stator 210. The specific cooperation between the stator 210 and the mover is not detailed in this application. The mover is not shown in the accompanying drawings.

[0088] Reference Figure 2 and Figure 3 As shown, the spring assembly 300 is used to provide elastic force between the stator 210 and the mover. In the shock absorber 10, the elastic force provided by the spring assembly 300 enables the shock absorber 10 to buffer external impacts and realize the shock absorption function.

[0089] The hydraulic bushing 120 is disposed between the linear motor 200 and the vehicle body; wherein, the hydraulic bushing 120 is also disposed between the spring assembly 300 and the vehicle body to provide damping force between the spring assembly 300 and the vehicle body.

[0090] In the shock absorber 10 of this embodiment, a hydraulic bushing 120 is integrated on the linear motor 200. The hydraulic bushing 120 attenuates vibration energy by dissipating energy through fluid flow within its chamber, enabling the shock absorber to respond to a wider range of vibration bandwidths and improving its damping effect on high-frequency vibrations. Furthermore, the hydraulic bushing 120 does not rely on a large fluid storage capacity within its chamber to provide better damping, thus allowing for a relatively small size. This enables the overall shock absorber 10 to have a relatively small size for easy integration into vehicles and other equipment. Simultaneously, the hydraulic bushing is positioned between the spring assembly and the vehicle body, further attenuating the vibration energy transmitted to the vehicle body during spring assembly operation, thereby further improving ride comfort.

[0091] In some embodiments, the shock absorber 10 further includes the aforementioned seat 110. The seat 110 is disposed between the hydraulic bushing 120 and the linear motor 200 to connect the hydraulic bushing 120 and the linear motor 200 as a whole. For example, the seat 110 is connected to the stator 210 of the linear motor 200 so that when the stator 210 moves relative to the mover, it drives the seat 110 and the hydraulic bushing 120 to move relative to the stator 210 of the linear motor 200.

[0092] In the specific design, the linear motor 200 includes a housing 220. The housing 220 is used for positioning and mounting the stator 210 and the mover.

[0093] As a specific plan, refer to Figure 3 As shown, a receiving cavity 221 is formed inside the housing 220. The mover can be disposed within the receiving cavity 221 to provide protection for the mover using the housing 220. The stator 210 can be at least partially disposed within the receiving cavity 221. The stator 210 can be slidably connected to the housing 220, and the relative sliding direction of the stator 210 is guided by the inner wall forming the receiving cavity 221. In a specific embodiment, for example, the stator 210 can be fixedly connected to the base 110, while the mover is fixed within the receiving cavity 221 of the housing. The hydraulic bushing 120 can be positioned outside the receiving cavity 221 to facilitate assembly of the hydraulic bushing 120 with the linear motor 200.

[0094] In some embodiments, the linear motor 200 further includes an isolation cover 230. The isolation cover 230 is disposed between the housing 220 and the base 110. An inner cavity 231 is formed inside the isolation cover 230 to accommodate the stator 210, with the stator 210 at least partially disposed within the inner cavity 231. This provides protection for the stator 210 during sliding relative to the housing 220, preventing dust, moisture, and other external environmental factors from affecting the lifespan of the stator 210. The isolation cover 230 is made of, for example, fabric, and its two ends are fixed to the base 110 and the housing 220 respectively. It can deform when the stator 210 moves and causes the base 110 to move relative to the housing 220, thus preventing interference with the normal movement of the stator 210.

[0095] In some embodiments, the spring assembly 300 includes a buffer spring 310. The buffer spring 310 is disposed between the housing 220 and the seat 110. It is understood that the buffer spring 310, as a key component providing buffering and shock absorption in the shock absorber 10, can be used to buffer the impact of external medium-frequency and medium-high frequency vibrations. Specifically, the buffer spring 310 can be disposed outside the inner cavity 231 formed by the isolation cover 230. This allows for the full utilization of the space outside the isolation cover 230 to integrate a larger-sized buffer spring 310, ensuring effective buffering and shock absorption.

[0096] In some embodiments, the spring assembly 300 further includes a first type of contact pad 320. The first type of contact pad 320 is disposed outside the housing 220. The end of the buffer spring 310 away from the seat 110 abuts against the first type of contact pad 320. The first type of contact pad 320 is made of a material such as rubber and provides cushioning between the housing 220 and the buffer spring 310. Considering that the first type of contact pad 320 can be made of various materials with elastic deformation capabilities, it can provide damping capability for low-frequency vibrations, thereby enabling the shock absorber 10 to damping capability for vibrations over a wider frequency range.

[0097] As an exemplary embodiment of the specific cooperation between the housing 220 and the first type of contact pad 320, the housing 220 is provided with a limiting portion 222. The limiting portion 222 protrudes from the outer wall of the housing 220 along a second direction L2, different from the sliding direction X1 of the mover. It should be understood that the sliding direction X1 of the mover is the sliding direction of the mover relative to the stator 210, which can be opposite to the sliding direction of the stator 210 relative to the housing 220. The first type of contact pad 320 is disposed between the limiting portion 222 and the buffer spring 310. Thus, the first type of contact pad 320 separates the buffer spring 310 and the housing 220, reducing wear on the buffer spring 310 and the housing 220, and the limiting portion 222 protruding from the surface of the housing 220 provides support or limitation for the buffer spring 310.

[0098] In some embodiments, the spring assembly 300 further includes a second type of contact pad 330. The second type of contact pad 330 is disposed between the seat 110 and the buffer spring 310; the end of the buffer spring 310 away from the housing 220 abuts against the second type of contact pad 330. Similar to the first type of contact pad 320, the second type of contact pad 330 is made of a material such as rubber, providing cushioning between the seat 110 and the buffer spring 310, thereby enhancing the shock absorption capability of the shock absorber 10.

[0099] As a specific embodiment, the shock absorber 10 also includes a fork arm 400. The fork arm 400 is connected to the linear motor 200, and the connection method is, for example, the fork arm 400 is fixedly connected to the housing 220 / integrated into one piece. The fork arm 400 and the hydraulic bushing 120 are respectively disposed at opposite ends of the linear motor 200. In actual use, the fork arm 400 and the hydraulic bushing 120 can be connected to two different parts of the equipment requiring shock absorption, thereby utilizing the shock absorber 10 to provide shock absorption between these two different parts. For example, when the shock absorber 10 is integrated into a vehicle as at least part of an active suspension, the fork arm 400 can be connected to the wheel, and the damping assembly 100 can be connected to the vehicle body, thereby providing shock absorption between the wheel and the vehicle body.

[0100] It is understandable that although described as fork arm 400 connecting to the wheel, fork arm 400 does not necessarily need to be directly connected to the wheel; it can also be connected to the wheel axle, the axle on which the wheel is mounted, or other locations. Correspondingly, the damping assembly 100 can be further defined to include an end cap 130. The end cap 130 is located on the side of the hydraulic bushing 120 away from the seat 110 and can be used to connect to the vehicle body. This allows the end cap 130 to isolate the hydraulic bushing 120, preventing the hydraulic bushing 120 from directly contacting other components on the vehicle body and providing protection for the hydraulic bushing 120. Specifically, the end cap 130 and the seat 110 are connected to different positions on the hydraulic bushing 120, and the end cap 130 and the seat 110 can move relative to each other. Therefore, when the damping assembly 100 is subjected to an impact, the hydraulic bushing 120 between the end cap 130 and the seat 110 during their movement attenuates the vibration energy.

[0101] It should be noted that although the linear motor 200 is used as an example to illustrate the function of the shock absorber 10 in the embodiment, depending on the actual use, those skilled in the art can also use a rotary motor and a transmission structure such as a lead screw to drive the movable part connected to the transmission structure to move relative to the rotary motor, so that the part connected to the movable part can move relative to the rotary motor, thereby achieving the adjustment of the stiffness of the shock absorber. In this case, the rotary motor and the transmission structure such as the lead screw are equivalent to the combination of the housing 220, stator 210 and other structures of the linear motor 200 in terms of adjusting the stiffness of the shock absorber, while the movable part is equivalent to the mover of the linear motor 200. Based on this, the linear motor 200 in this application can be used as a specific example of an adjustment device, which is used to adjust the distance between the wheel and the vehicle body. The linear motor 200 in this application is not the only limitation on the specific structure of the adjustment device, but should be regarded as an exemplary description of its structure. The scheme of integrating the damping component 100 into other types of adjustment devices to integrate it into the shock absorber 10 should be regarded as the protection scope of this application.

[0102] It is understandable that the first frequency band of the vibration here is, for example, the mid-frequency or mid-high frequency band mentioned earlier. Correspondingly, the hydraulic bushing 120 can be used to buffer the vibration of the second frequency band received by the shock absorber 10. It is understandable that the second frequency band of the vibration here is, for example, the high frequency band mentioned earlier.

[0103] Similarly, the spring assembly 300 in this application can be considered a specific example of an elastic device used to buffer vibrations in the first frequency band experienced by a portion of the adjustment device. The cooperation relationship between the adjustment device, the elastic device, and the hydraulic bushing 120 can be understood as follows: the elastic device and the hydraulic bushing 120 are respectively coupled to the adjustment device and respectively positioned at a first position and a second position in the damping direction of the shock absorber 10. This allows the use of the elastic device and the hydraulic bushing 120 to improve the damping effect.

[0104] According to the third aspect of this application, referring to Figure 6 As shown, a vehicle 1 is provided, including the shock absorber 10 described above, or including the damping assembly 100 as described above. The vehicle 1 has all the beneficial effects of the shock absorber 10 or the damping assembly 100 described above, which will not be repeated here.

[0105] The vehicle 1 can be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions on it.

[0106] 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.

[0107] 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.

[0108] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0109] 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 shock absorber (10), characterized in that, include: A linear motor (200) has a stator (210) and a mover; A spring assembly (300) is provided to provide an elastic force between the stator (210) and the mover; A hydraulic bushing (120) is disposed between the linear motor (200) and the vehicle body; The hydraulic bushing (120) is disposed between the spring assembly (300) and the vehicle body to provide damping force between the spring assembly (300) and the vehicle body.

2. The shock absorber (10) according to claim 1, characterized in that, Also includes: A base (110) is disposed between the hydraulic bushing (120) and the linear motor (200) to connect the hydraulic bushing (120) and the linear motor (200) as a whole.

3. The shock absorber (10) according to claim 2, characterized in that, Also includes: The seat (110) provides a seat groove (112) for positioning the hydraulic bushing (120) to the linear motor (200), the hydraulic bushing (120) being at least partially accommodated in the seat groove (112).

4. The shock absorber (10) according to claim 3, characterized in that, The seat groove (112) is recessed on the side of the seat body (110) away from the linear motor (200), and the wall surface of the seat body (110) forming the seat groove (112) is in surface contact with the hydraulic bushing (120).

5. The shock absorber (10) according to claim 4, characterized in that, The hydraulic bushing (120) is provided with: The first assembly part (121) is embedded in the seat groove (112) and forms a surface contact with the inner wall of the seat groove (112) formed by the seat body (110); The second assembly part (122) is provided on the side of the first assembly part (121) away from the linear motor (200); The second assembly part (122) is fixedly connected to the base (110).

6. The shock absorber (10) according to claim 5, characterized in that, In a first direction (L1) different from the sliding direction (X1) of the mover, the second assembly portion (122) is provided to at least partially protrude from the first assembly portion (121).

7. The shock absorber (10) according to claim 5, characterized in that, The second assembly part (122) is at least partially embedded in the seat groove (112).

8. The shock absorber (10) according to claim 1, characterized in that, Also includes: The fork arm (400) is connected to the linear motor (200); The fork arm (400) and the hydraulic bushing (120) are respectively disposed at opposite ends of the linear motor (200).

9. The shock absorber (10) according to any one of claims 2 to 7, characterized in that, The linear motor (200) includes: The housing (220) is used to position and mount the stator (210) and the mover.

10. The shock absorber (10) according to claim 9, characterized in that, The housing (220) has a cavity (221) inside; the stator (210) is at least partially disposed in the cavity (221); the hydraulic bushing (120) is located outside the cavity (221).

11. The shock absorber (10) according to claim 9, characterized in that: The linear motor (200) also includes: An isolation cover (230) is disposed between the housing (220) and the base (110); The isolation cover (230) has an inner cavity (231) inside to accommodate the stator (210); the stator (210) is at least partially slidably disposed in the inner cavity (231).

12. The shock absorber (10) according to claim 9, characterized in that, The spring assembly (300) includes: A buffer spring (310) is disposed between the housing (220) and the seat (110).

13. The shock absorber (10) according to claim 12, characterized in that, The spring assembly (300) also includes: A first type of contact pad (320) is disposed on the outside of the housing (220); The end of the buffer spring (310) away from the seat (110) abuts against the first type of contact pad (320).

14. The shock absorber (10) according to claim 13, characterized in that, The housing (220) includes: The limiting part (222) is provided protruding from the outer wall of the housing (220) in a second direction (L2) different from the sliding direction (X1) of the mover; The first type of contact pad (320) is disposed between the limiting part (222) and the buffer spring (310).

15. The shock absorber (10) according to claim 12, characterized in that, The spring assembly (300) also includes: A second type of contact pad (330) is disposed between the seat (110) and the buffer spring (310); The end of the buffer spring (310) away from the housing (220) abuts against the second type of contact pad (330).

16. A damping assembly (100) applied to a shock absorber (10) having a linear motor (200); characterized in that, include: The base (110) is fixed to the mover or stator (210) of the linear motor (200); A hydraulic bushing (120) is installed to the seat (110); The seat (110) is at least partially configured as an annular structure (111) and has a seat groove (112) to allow the hydraulic bushing (120) to be at least partially embedded in the seat (110).

17. The damping assembly (100) according to claim 16, characterized in that, The hydraulic bushing (120) includes: The first assembly part (121) is embedded in the seat groove (112) and forms a surface contact with the inner wall of the seat groove (112) formed by the seat body (110); The second assembly part (122) is fixedly connected to the base (110).

18. The damping assembly (100) according to claim 17, characterized in that, In a direction other than the axial direction of the annular structure (111), the second mounting portion (122) is at least partially protruding from the first mounting portion (121).

19. The damping assembly (100) according to claim 18, characterized in that, The second assembly part (122) is at least partially embedded in the seat groove (112).

20. The damping assembly (100) according to any one of claims 16 to 19, characterized in that, Also includes: End cap (130) is connected to the hydraulic bushing (120); The hydraulic bushing (120) is located between the end cap (130) and the seat (110).

21. A vehicle, characterized in that, It includes a shock absorber (10) as described in any one of claims 1 to 15, or a damping assembly (100) as described in any one of claims 16 to 20.

Images