Active hydraulic suspension damping structure and vehicle

Abstract

The embodiment of the application provides a kind of active hydraulic suspension damping structure and vehicle.The hydraulic assembly of active hydraulic suspension damping structure includes hydraulic pump, first valve shell and first oil locking piece, first valve shell has first oil storage cavity inside, hydraulic pump and first oil storage cavity are communicated, and first oil locking piece is movably connected in the communication path of hydraulic pump and first oil storage cavity;The second valve shell inside of damping assembly includes second oil storage cavity, hydraulic pump and second oil storage cavity are communicated, and second oil locking piece is movably connected in second oil storage cavity;In the case where hydraulic assembly and damping assembly are in the separated state, first oil locking piece blocks and seals the communication path of hydraulic pump and first oil storage cavity, and second oil locking piece blocks and seals the communication path of shock absorber and second oil storage cavity.In this way, air erosion hydraulic assembly and damping assembly can be avoided, the service life of active hydraulic suspension damping structure is prolonged, and the working noise of active hydraulic suspension damping structure due to air is also avoided.

Description

Technical Field

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

[0002] As vehicles continue to evolve, their performance also improves. Among these advancements, active hydraulic suspension damping systems are widely used due to their advantages such as independent adjustment capabilities and rapid response. However, because active hydraulic suspension damping systems require pre-lubrication of both the hydraulic and damping components during operation, structural limitations result in unlubricated areas within both the hydraulic and damping components. These unlubricated areas, upon contact with the atmosphere, allow air to enter the active hydraulic suspension damping system. This not only easily corrodes the components and reduces the system's lifespan but also generates operating noise due to the air, affecting its performance. Utility Model Content

[0003] To address or partially address the aforementioned problems, this application discloses an active hydraulic suspension damping structure and a vehicle, thereby resolving the issues in related technologies where un-lubricated areas exist inside the active hydraulic suspension damping structure, leading to corrosion of related components, reduced service life, and operational noise due to air, thus affecting the performance of the active hydraulic suspension damping structure.

[0004] To address the aforementioned problems, in a first aspect, embodiments of this application provide an active hydraulic suspension damping structure, the active hydraulic suspension damping structure comprising: A hydraulic assembly, comprising a hydraulic pump, a first valve housing, and a first oil locking element, wherein the first valve housing has a first oil reservoir, the hydraulic pump is connected to the first oil reservoir, and the first oil locking element is movably connected in the communication path between the hydraulic pump and the first oil reservoir. The shock absorption assembly includes a shock absorber, a second valve housing, and a second oil locking element. The second valve housing has a second oil reservoir inside. The hydraulic pump is connected to the second oil reservoir, and the second oil locking element is movably connected in the second oil reservoir. When the hydraulic assembly and the shock absorber assembly are in a separated state, the first oil-locking component blocks the communication path between the hydraulic pump and the first oil reservoir, and the second oil-locking component blocks the communication path between the shock absorber and the second oil reservoir. When the hydraulic assembly and the shock absorber assembly are in an installed state, the end of the second valve housing is detachably connected to the first oil reservoir, the hydraulic pump is connected to the first oil reservoir, the first oil reservoir is connected to the second oil reservoir, and the shock absorber is connected to the second oil reservoir.

[0005] In some embodiments, the first valve housing includes a first cavity and a second cavity that communicate with each other, the second cavity constituting the first oil storage cavity; The first cavity is connected to the hydraulic pump, the first oil-locking component is movably connected in the first cavity, and the first oil-locking component moves along the extension direction of the first cavity toward or away from the hydraulic pump; When the hydraulic assembly and the shock absorber assembly are in a separated state, the first oil-locking element moves along the extension direction of the first cavity toward the hydraulic pump and blocks the connection between the first cavity and the hydraulic pump.

[0006] In some embodiments, the hydraulic pump and the first cavity are connected via a first connecting pipe; When the hydraulic assembly and the shock absorption assembly are in a separated state, the first oil-locking element blocks the connection between the first cavity and the first connecting pipe.

[0007] In some embodiments, a first seal is provided between the outer wall of the first oil-locking component and the inner wall of the first cavity, and the first seal is located on the side away from the hydraulic pump at the communication portion between the first cavity and the second cavity.

[0008] In some embodiments, the second valve housing includes a first housing and a second housing, the first housing having a third cavity, the second housing having a fourth cavity, the third cavity and the fourth cavity communicating with each other, the fourth cavity communicating with a shock absorber, the third cavity and the fourth cavity together forming the second oil storage cavity, the second oil locking element being movably connected in the fourth cavity and moving toward or away from the third cavity; When the hydraulic assembly and the shock absorber assembly are in a separated state, the second oil-locking element blocks the communication between the third cavity and the fourth cavity. When the hydraulic assembly and the shock absorber assembly are assembled, the first housing is inserted into the second cavity, and the third cavity and the second cavity are connected. The first oil-locking element moves away from the hydraulic pump and away from the third cavity. The hydraulic pump is connected through the first cavity and the second cavity, and the shock absorber is connected through the fourth cavity and the third cavity.

[0009] In some embodiments, the fourth cavity and the shock absorber are connected by a second connecting pipe. When the hydraulic assembly and the shock absorber are in a separated state, the second oil-locking component simultaneously blocks the connection between the second connecting pipe and the fourth cavity.

[0010] In some embodiments, the damping assembly further includes an elastic element and a movable element; One end of the elastic element is fixed to the inner wall of the third cavity, and the other end of the elastic element is fixed to the end of the movable element. The elastic element is in a compressed state. The first housing has an inlet hole at its end facing the first valve housing. The movable member is movably connected in the inlet hole. When the hydraulic assembly and the shock absorber assembly are in a separated state, the movable member blocks the inlet hole. The compression amount of the elastic member is a first compression amount. When the hydraulic assembly and the shock absorber assembly are in an assembled state, the movable member is at least partially located in the third cavity, and there is a first flow gap between the movable member and the wall of the inlet hole. The third cavity and the second cavity are connected through the first flow gap. The compression amount of the elastic member is a second compression amount, wherein the second compression amount is greater than the first compression amount.

[0011] In some embodiments, the hydraulic assembly further includes a sealing cap movably connected to the end of the second cavity remote from the first cavity; The inner wall of the second cavity is provided with a clearance groove. When the hydraulic component and the shock absorber are in a separated state, the sealing cover is sealed and connected to the end of the second cavity away from the first cavity, and is located on the side of the clearance groove away from the first cavity. When the hydraulic component and the shock absorber are in an assembled state, the sealing cover is located at the clearance groove. There is a second flow gap between the sealing cover and the clearance groove. The second cavity enters the third cavity through the second flow gap, and the end of the movable part abuts against the sealing cover.

[0012] In some embodiments, a second sealing element is provided on the outer wall of the first housing, and when the first housing is inserted into the second cavity, the second sealing element is located on the inner wall of the second cavity and the outer wall of the first housing; A third sealing element is provided between the outer wall of the second oil-locking element and the inner wall of the fourth cavity. The third sealing element is located on the side away from the third cavity at the connection between the fourth cavity and the second connecting pipe.

[0013] Secondly, embodiments of this application also provide a vehicle, wherein the vehicle includes the active hydraulic suspension damping structure described in any of the first aspects.

[0014] According to the embodiments of this application, since the hydraulic assembly includes a hydraulic pump, a first valve housing, and a first oil-locking element, and the first valve housing has a first oil reservoir, the hydraulic pump and the first oil reservoir are connected, and the first oil-locking element is movably connected in the communication path between the hydraulic pump and the first oil reservoir, the communication path between the hydraulic pump and the first oil reservoir can be blocked by the movement of the first oil-locking element in the first oil reservoir. Since the shock-absorbing assembly includes a shock absorber, a second valve housing, and a second oil-locking element, and the second valve housing has a second oil reservoir, the hydraulic pump and the second oil reservoir are connected, and the second oil-locking element is movably connected in the second oil reservoir, and the end of the second valve housing is detachably connected in the first oil reservoir, the communication path between the shock absorber and the second oil reservoir can be blocked by the movement of the second oil-locking element. In this way, with the hydraulic components and the shock absorber components in a separated state, the first oil-locking component blocks the connection path between the hydraulic pump and the first oil reservoir, and the second oil-locking component blocks the connection path between the shock absorber and the second oil reservoir. This makes the connection path between the hydraulic pump and the first oil reservoir sealed, and the connection path between the shock absorber and the second oil reservoir sealed. This facilitates the creation of a vacuum state by drawing a vacuum, allowing pre-filling of oil into the connection paths between the hydraulic pump and the first oil reservoir, and between the shock absorber and the second oil reservoir. This ensures that the air between these connection paths can be expelled to the atmosphere, thereby preventing air from corroding the connection paths and extending the service life of the active hydraulic suspension damping structure. At the same time, it avoids the working noise caused by air in the connection path between the hydraulic pump and the first oil reservoir, and the connection path between the shock absorber and the second oil reservoir, thereby improving the overall performance of the active hydraulic suspension damping structure. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the active hydraulic suspension damping structure provided in the embodiments of this application.

[0017] Explanation of reference numerals in the attached figures: 1: Hydraulic component; 11: Hydraulic pump; 12: First valve housing; 121: First cavity; 122: Second cavity; 1221: Clearance groove; 13: First oil locking element; 14: First connecting pipe; 15: Sealing cover; 2: Shock absorption component; 21: Shock absorber; 22: Second valve housing; 221: First housing; 2211: Third cavity; 222: Second housing; 2221: Fourth cavity; 23: Second oil locking element; 24: Second connecting pipe; 25: Elastic element; 26: Moving element; 3: First seal; 4: Second seal; 5: Third seal; 6: Fourth sealing ring. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0019] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0020] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0021] Please refer to Figure 1 This application provides an active hydraulic suspension damping structure, which includes: Hydraulic assembly 1 includes a hydraulic pump 11, a first valve housing 12, and a first oil locking element 13. The first valve housing 12 has a first oil storage cavity inside. The hydraulic pump 11 and the first oil storage cavity are connected. The first oil locking element 13 is movably connected in the communication path between the hydraulic pump 11 and the first oil storage cavity.

[0022] The shock absorption assembly 2 includes a shock absorber 21, a second valve housing 22, and a second oil locking component 23. The second valve housing 22 has a second oil storage chamber inside. The hydraulic pump 11 is connected to the second oil storage chamber, and the second oil locking component 23 is movably connected in the second oil storage chamber. When the hydraulic assembly 1 and the shock absorber assembly 2 are in a separated state, the first oil locking element 13 blocks the communication path between the hydraulic pump 11 and the first oil reservoir, and the second oil locking element 23 blocks the communication path between the shock absorber 21 and the second oil reservoir. When the hydraulic assembly 1 and the shock absorber assembly 2 are in an installed state, the end of the second valve housing 22 is detachably connected to the first oil reservoir, the hydraulic pump 11 is connected to the first oil reservoir, the first oil reservoir is connected to the second oil reservoir, and the shock absorber 21 is connected to the second oil reservoir.

[0023] As can be seen from the above embodiments, in this application embodiment, since the hydraulic assembly 1 includes a hydraulic pump 11, a first valve housing 12, and a first oil-locking element 13, and the first valve housing 12 has a first oil reservoir, the hydraulic pump 11 and the first oil reservoir are connected, and the first oil-locking element 13 is movably connected in the communication path between the hydraulic pump 11 and the first oil reservoir, the communication path between the hydraulic pump 11 and the first oil reservoir can be blocked by the movement of the first oil-locking element 13 in the first oil reservoir. Since the shock absorber assembly 2 includes a shock absorber 21, a second valve housing 22, and a second oil-locking element 23, and the second valve housing 22 has a second oil reservoir, the hydraulic pump 11 and the second oil reservoir are connected, the second oil-locking element 23 is movably connected in the second oil reservoir, and the end of the second valve housing 22 is detachably connected in the first oil reservoir, the communication path between the shock absorber 21 and the second oil reservoir can be blocked by the movement of the second oil-locking element 23. In this way, when the hydraulic assembly 1 and the shock absorber assembly 2 are in a separated state, the first oil-locking component 13 blocks the connection path between the hydraulic pump 11 and the first oil reservoir, and the second oil-locking component 23 blocks the connection path between the shock absorber 21 and the second oil reservoir. This makes the connection path between the hydraulic pump 11 and the first oil reservoir sealed, and the connection path between the shock absorber 21 and the second oil reservoir sealed. This facilitates the creation of a vacuum state by drawing a vacuum, allowing pre-filling of the connection paths between the hydraulic pump 11 and the first oil reservoir, and between the shock absorber 21 and the second oil reservoir. This ensures that the air between these connection paths can be expelled into the atmosphere, thereby preventing air from corroding the connection paths between the hydraulic pump 11 and the first oil reservoir, and between the shock absorber 21 and the second oil reservoir, and extending the service life of the active hydraulic suspension damping structure. At the same time, it avoids the working noise caused by air in the connection path between the hydraulic pump 11 and the first oil reservoir, and the connection path between the shock absorber 21 and the second oil reservoir, thereby improving the overall performance of the active hydraulic suspension damping structure.

[0024] Hydraulic component 1 includes a hydraulic pump 11, which can be a hydraulic gear pump, an electric hydraulic pump, or other types of hydraulic pump 11. Hydraulic component 1 mainly uses the mechanical energy of the hydraulic pump 11 to drive the flow of hydraulic oil, thereby realizing the adjustment of the parameters of the active hydraulic suspension damping structure. The damping component 2 includes a damper that is a damping structure that actively adjusts the damping force through a hydraulic system.

[0025] The first valve housing 12 and the second valve housing 22 are mainly used to store hydraulic oil and provide channels for the flow of hydraulic oil. The first valve housing 12 and the second valve housing 22 can be square housing structures, cylindrical housing structures, or other housing structures. This application embodiment does not limit this.

[0026] The first oil-locking component 13 and the second oil-locking component 23 can be structures such as oil-locking screws, oil-locking slides, or oil-locking rods, and this application embodiment does not limit them. Taking the first oil-locking component 13 and the second oil-locking component 23 as examples where they can be oil-locking screws, a first threaded hole can be opened in the communication path between the hydraulic pump 11 and the first oil reservoir, and a second threaded hole can be opened in the communication path between the shock absorber 21 and the second oil reservoir. The first oil-locking component 13 is threadedly connected to the first threaded hole, and the second oil-locking component 23 is threadedly connected to the second threaded hole.

[0027] Furthermore, with the hydraulic assembly 1 and the shock absorber assembly 2 in the installed state, the end of the second valve housing 22 is detachably connected to the first oil reservoir. Simultaneously, the first oil-locking element 13 can disengage from the blockage leading to the communication path between the hydraulic pump 11 and the first oil reservoir, and the second oil-locking element 23 can disengage from the blockage leading to the communication path between the shock absorber 21 and the second oil reservoir. This allows the hydraulic pump 11 to communicate with the first oil reservoir, the first oil reservoir to communicate with the second oil reservoir, and the shock absorber 21 to communicate with the second oil reservoir. The end of the second valve housing 22 can be detachably connected by at least one method, such as plug-in connection, bolt connection, or riveting; this embodiment does not limit this method.

[0028] In some embodiments, the first valve housing 12 includes a first cavity 121 and a second cavity 122 that are connected. The second cavity 122 forms a first oil reservoir. The first cavity 121 is connected to the hydraulic pump 11. A first oil-locking element 13 is movably connected in the first cavity 121 and moves along the extension direction of the first cavity 121 toward or away from the hydraulic pump 11. When the hydraulic assembly 1 and the shock-absorbing assembly 2 are in a separated state, the first oil-locking element 13 moves along the extension direction of the first cavity 121 toward the hydraulic pump 11 and blocks the connection between the first cavity 121 and the hydraulic pump 11.

[0029] In this embodiment, when the hydraulic component 1 needs to be evacuated, the first oil-locking component 13 can move along the extension direction of the first cavity 121 toward the hydraulic pump 11, and finally block the connection between the first cavity 121 and the hydraulic pump 11, so that the first cavity 121 and the second cavity 122 are in a non-conductive state. Then, the connection path between the second cavity 122 and the hydraulic pump 11 can be kept in a vacuum environment by evacuating the vacuum.

[0030] It should be noted that the first cavity 121 and the second cavity 122 are two interconnected internal cavity structures within the first valve housing 12. The first cavity 121 can extend along a first direction, and the second cavity 122 can extend along a second direction. The first and second directions are two mutually perpendicular directions. For example, taking the first oil-locking component 13 as an oil-locking screw, the inner wall of the first cavity 121 can have internal threads, i.e., the first cavity 121 forms a threaded hole, thereby allowing the first oil-locking component 13 to be threadedly connected within the first cavity 121. When the hydraulic assembly 1 needs to release vacuum, the first oil-locking component 13 can be screwed in along the extending direction of the first cavity 121 towards the hydraulic pump 11.

[0031] In some embodiments, the hydraulic pump 11 and the first cavity 121 are connected by a first connecting pipe 14. When the hydraulic assembly 1 and the shock absorber 2 are in a separated state, the first oil-locking element 13 blocks the connection between the first cavity 121 and the first connecting pipe 14.

[0032] In this embodiment, when the hydraulic component 1 needs to release the vacuum, the first oil-locking component 13 can block the connection between the first cavity 121 and the first connecting pipe 14, thereby making the first connecting pipe 14 and the first cavity 121 non-conductive, which facilitates the first connecting pipe 14 to release the vacuum.

[0033] In some embodiments, a first sealing member 3 is provided between the outer wall of the first oil-locking member 13 and the inner wall of the first cavity 121. The first sealing member 3 is located on the side away from the hydraulic pump 11 at the communication part of the first cavity 121 and the second cavity 122.

[0034] In this embodiment, since a first sealing element 3 is provided between the outer wall of the first oil-locking element 13 and the inner wall of the first cavity 121, and the first sealing element 3 is located on the side away from the hydraulic pump 11 at the communication part of the first cavity 121 and the second cavity 122, the hydraulic oil can be prevented from flowing out between the outer wall of the first oil-locking element 13 and the inner wall of the first cavity 121 by the first sealing element 3, thus ensuring the sealing of the entire hydraulic assembly 1. At the same time, the setting of the first sealing element 3 can be avoided from affecting the communication between the first cavity 121 and the second cavity 122.

[0035] In some embodiments, the second valve housing 22 includes a first housing 221 and a second housing 222. The first housing 221 has a third cavity 2211 and the second housing 222 has a fourth cavity 2221. The third cavity 2211 and the fourth cavity 2221 are connected. The fourth cavity 2221 is connected to the shock absorber 21. The third cavity 2211 and the fourth cavity 2221 together constitute the second oil storage cavity. The second oil locking element 23 is movably connected in the fourth cavity 2221 and moves toward or away from the third cavity 2211. When the hydraulic assembly 1 and the shock absorber assembly 2 are in a separated state, the second oil-locking element 23 blocks the communication between the third cavity 2211 and the fourth cavity 2221. When the hydraulic assembly 1 and the shock absorber assembly 2 are assembled, the first housing 221 is inserted into the second cavity 122, and the third cavity 2211 and the second cavity 122 are connected. The first oil-locking element 13 moves away from the hydraulic pump 11 and away from the third cavity 2211. The hydraulic pump 11 is connected through the first cavity 121 and the second cavity 122, and the shock absorber 21 is connected through the fourth cavity 2221 and the third cavity 2211.

[0036] In this embodiment, when the shock absorber assembly 2 needs to be evacuated, the second oil-locking component 23 can be moved toward the direction of the third cavity 2211 until the second oil-locking component 23 blocks the connection between the third cavity 2211 and the fourth cavity 2221, thereby making the third cavity 2211 and the fourth cavity 2221 non-conductive. Thus, the connection path between the fourth cavity 2221 and the shock absorber 21 can be kept in a vacuum environment by evacuating the vacuum. Conversely, after the communication paths between the second cavity 122 and the hydraulic pump 11, and between the fourth cavity 2221 and the shock absorber 21 are all in a vacuum environment, the hydraulic assembly 1 and the shock absorber 2 are assembled. During this process, the first housing 221 is inserted into the second cavity 122, and the third cavity 2211 and the second cavity 122 are connected. The first oil-locking element 13 moves away from the hydraulic pump 11 and away from the third cavity 2211. The hydraulic pump 11 is connected through the first cavity 121 and the second cavity 122, and the shock absorber 21 is connected through the fourth cavity 2221 and the third cavity 2211, thereby enabling the hydraulic pump 11 and the shock absorber 21 to be in a connected state.

[0037] It should be noted that the third cavity 2211 and the fourth cavity 2221 are two interconnected internal cavity structures of the second valve body 22, and the extension directions of the third cavity 2211 and the fourth cavity 2221 are consistent. For example, taking the second oil-locking component 23 as an oil-locking screw, the inner wall of the fourth cavity 2221 may have internal threads, that is, the fourth cavity 2221 forms a threaded hole, thereby allowing the second oil-locking component 23 to be threadedly connected in the four cavities. When the damping assembly 2 needs to release vacuum, the second oil-locking component 23 can be screwed in along the extension direction of the fourth cavity 2221 towards the direction closer to the third cavity 2211.

[0038] In some embodiments, the fourth cavity 2221 and the shock absorber 21 are connected through the second connecting pipe 24. When the hydraulic assembly 1 and the shock absorber 2 are in a separated state, the second oil locking element 23 simultaneously blocks the connection between the second connecting pipe 24 and the fourth cavity.

[0039] In this embodiment, when the shock absorber 2 needs to be vented, the second oil-locking component 23 can be used to block the connection between the third cavity 2211 and the fourth cavity 2221. At the same time, the second oil-locking component 23 can block the connection between the second connecting pipe 24 and the fourth cavity 2221, thereby making the first connecting pipe 14 and the fourth cavity 2221 non-conductive, which facilitates the venting of the vacuum in the second connecting pipe 24.

[0040] In some embodiments, the shock-absorbing assembly 2 further includes an elastic element 25 and a movable element 26. One end of the elastic element 25 is fixed to the inner wall of the third cavity 2211, and the other end of the elastic element 25 is fixed to the end of the movable element 26. The elastic element 25 is in a compressed state. The first housing 221 has a liquid inlet hole at the end facing the first valve housing 12. The movable element 26 is movably connected in the liquid inlet hole. When the hydraulic assembly 1 and the shock-absorbing assembly 2 are in a separated state, the movable element 26 is blocked in the liquid inlet hole, and the compression amount of the elastic element 25 is a first compression amount. When the hydraulic assembly 1 and the shock-absorbing assembly 2 are in an assembled state, the movable element 26 is at least partially located in the third cavity 2211, and there is a first flow gap between the movable element 26 and the wall of the liquid inlet hole. The third cavity 2211 and the second cavity 122 are connected through the first flow gap, and the compression amount of the elastic element 25 is a second compression amount, wherein the second compression amount is greater than the first compression amount.

[0041] In this embodiment, when the hydraulic assembly 1 and the shock absorber 2 are in a separated state, that is, when both the hydraulic assembly 1 and the shock absorber 2 are in a vacuum state, the elastic force of the elastic member 25 ensures that the movable member 26 is always sealed in the inlet hole, guaranteeing that the third cavity 2211 is in a sealed state. After the third cavity 2211 is pre-filled with oil, hydraulic oil can be prevented from flowing out of the inlet hole, ensuring the sealing performance of the shock absorber 2. When the hydraulic assembly 1 and the shock absorber 2 are in an assembled state, that is, when the hydraulic assembly 1 and the shock absorber 2 are vacuumed, the first housing 221 can be inserted into the second cavity 122, and the movable member 26 is at least partially located in the third cavity 2211. A first flow gap exists between the movable member 26 and the wall of the inlet hole. Thus, the third cavity 2211 and the second cavity 122 are connected through the first flow gap, allowing communication between the hydraulic assembly 1 and the shock absorber 2.

[0042] It should be noted that when the hydraulic assembly 1 and the shock absorber assembly 2 are in a separated state, the compression amount of the elastic element 25 is the first compression amount. When the hydraulic assembly 1 and the shock absorber assembly 2 are in an assembled state, the compression amount of the elastic element 25 is the second compression amount. The second compression amount is greater than the first compression amount. Therefore, the elastic element 25 is always in an elastically compressed state. Under the action of the elastic element 25, the position between the movable element 26 and the inlet hole can change, so that the inlet hole achieves a unidirectional conduction function. That is, the third cavity 2211 and the second cavity 122 can only be connected when the hydraulic assembly 1 and the shock absorber assembly 2 are in an assembled state. It should also be noted that the movable element 26 can be a pin hole, a movable block, a protrusion, or other structures. The movable element 26 can be frustum-shaped, and the diameter of the end of the movable element 26 near the third cavity 2211 is greater than the diameter of the end of the movable element 26 near the third cavity 2211. Thus, when the movable element 26 is at least partially located in the third cavity 2211, there is a first inlet gap between the movable element 26 and the inlet hole. The elastic element 25 can be a structural component with elastic restoring force, such as a spring, rubber strip, or bellows, and this application embodiment does not limit this.

[0043] In some embodiments, the hydraulic assembly 1 further includes a sealing cover 15, which is movably connected to the end of the second cavity 122 away from the first cavity 121. The inner wall of the second cavity 122 is provided with a relief groove 1221. When the hydraulic assembly 1 and the shock absorber 2 are in a separated state, the sealing cover 15 is sealed to the end of the second cavity 122 away from the first cavity 121 and is located on the side of the relief groove 1221 away from the first cavity 121. When the hydraulic assembly 1 and the shock absorber 2 are in an assembled state, the sealing cover 15 is located at the relief groove 1221. There is a second flow gap between the sealing cover 15 and the relief groove 1221. The second cavity 122 enters the third cavity 2211 through the second flow gap, and the end of the movable member 26 presses against the sealing cover 15.

[0044] In this embodiment, when the hydraulic assembly 1 and the shock absorber assembly 2 are in a separated state, the sealing cap 15 is sealed to the end of the second cavity 122 away from the first cavity 121 and is located on the side of the clearance groove 1221 away from the first cavity 121. Therefore, after the second cavity 122 is pre-filled with oil, the sealing cap 15 can ensure the sealing of the second cavity 122. When the hydraulic assembly 1 and the shock absorber assembly 2 are in an assembled state, the sealing cap 15 is positioned at the clearance groove 1221 under the push of the first housing 221. There is a second flow gap between the sealing cap 15 and the clearance groove 1221, which allows the second cavity 122 to enter the third cavity 2211 through the second flow gap. Under the interaction of the sealing cap 15, the movable member 26 moves towards the fourth cavity 2221, ultimately creating a first flow gap between the movable member 26 and the wall of the inlet hole.

[0045] In addition, a fourth seal 6 is provided on the inner wall of the end of the second cavity 122 away from the first cavity 121. When the hydraulic assembly 1 and the shock absorption assembly 2 are in a separated state, the fourth seal 6 is sealed between the outer wall of the sealing cover 15 and the inner wall of the second cavity 122. After the second cavity 122 is pre-filled with oil, the sealing cover 15 and the fourth seal 6 can jointly ensure the sealing of the second cavity 122.

[0046] In some embodiments, a second sealing member 4 is provided on the outer wall of the first housing 221. When the first housing 221 is inserted into the second cavity 122, the second sealing member 4 is located on the inner wall of the second cavity 122 and the outer wall of the first housing 221. A third sealing member 5 is provided between the outer wall of the second oil-locking member 23 and the inner wall of the fourth cavity 2221. The third sealing member 5 is located on the side of the fourth cavity 2221 away from the connection between the second connecting pipe 24 and the third cavity 2221.

[0047] In this embodiment, since a second sealing element 4 is provided on the outer wall of the first housing 221, when the first housing 221 is inserted into the second cavity 122, the second sealing element 4 is located on the inner wall of the second cavity 122 and the outer wall of the first housing 221. Therefore, after the first housing 221 is inserted into the second cavity 122, hydraulic oil can be prevented from flowing out from the inner wall of the second cavity 122 and the outer wall of the first housing 221, thus ensuring the sealing performance of the entire hydraulic assembly 1 and the shock absorption assembly 2 after connection. Since a third seal 5 is provided between the outer wall of the second oil-locking component 23 and the inner wall of the fourth cavity 2221, and the third seal 5 is located on the side of the connection between the fourth cavity 2221 and the second connecting pipe 24 away from the third cavity 2211, the hydraulic oil can be prevented from flowing out between the outer wall of the second oil-locking component 23 and the inner wall of the fourth cavity 2221 through the third seal 5, thus ensuring the sealing of the entire shock absorber assembly 2. At the same time, the setting of the third seal 5 can be avoided from affecting the connection between the fourth cavity 2221 and the shock absorber 21.

[0048] It should be noted that, in the embodiments of this application, the number of the first sealing element 3, the second sealing element 4, the third sealing element 5, and the fourth sealing element 6 can be one or more, such as two. This allows for the establishment of multiple seals, thereby improving the reliability of the first sealing element 3, the second sealing element 4, the third sealing element 5, and the fourth sealing element 6, and ensuring their sealing function. Furthermore, the first sealing element 3, the second sealing element 4, the third sealing element 5, and the fourth sealing element 6 can be any of the following: an O-ring, a lip ring, or other types of sealing structures. This application embodiment does not limit the specific type of sealing element.

[0049] Based on all the above embodiments, the working principle of the active hydraulic suspension damping structure provided in this application is described in detail below: When the hydraulic assembly 1 and the shock absorber assembly 2 are in a separated state, when the hydraulic assembly 1 is evacuated, the first oil-locking component 13 can move along the extension direction of the first cavity 121 toward the hydraulic pump 11, and finally block the connection between the first cavity 121 and the hydraulic pump 11, so that the first cavity 121 and the second cavity 122 are in a non-conductive state. Then, the connection path between the second cavity 122 and the hydraulic pump 11 can be kept in a vacuum environment by evacuation. After that, oil is injected into the connection path between the second cavity 122 and the hydraulic pump 11 and the second cavity 122. Then, the sealing cover 15 is sealed and connected to the second cavity 122, so that the air in the area between the hydraulic pump 11 and the sealing cover 15 is discharged into the atmosphere. Simultaneously, when the shock absorber assembly 2 is evacuated, the second oil-locking component 23 can move towards the third cavity 2211 until it blocks the connection between the third cavity 2211 and the fourth cavity 2221, and also blocks the connection between the second connecting pipe and the third cavity 2211. This allows the third cavity 2211 and the second connecting pipe to be in a vacuum environment. After that, the third cavity 2211 and the second connecting pipe are pre-filled with oil, and the movable component 26 is blocked in the liquid inlet hole, so that the air in the area between the shock absorber 21 and the movable component 26 is discharged into the atmosphere.

[0050] With the hydraulic assembly 1 and the shock absorber assembly 2 in the assembled state, the sealing cap 15 and the movable part 26 can be aligned first. Then, the first housing 221 is inserted into the second cavity 122, while the second oil-locking part 23 moves away from the third cavity 2211, making the third cavity 2211 and the fourth cavity 2221 connected, and the fourth cavity 2221 and the second connecting pipe connected. Then, the first housing 221 continues to push the sealing cap 15 to the relief groove 1221 opened on the inner wall of the second cavity 122. There is a second flow gap between the sealing cap 15 and the relief groove 1221, so that the second cavity 122 enters the third cavity 2211 through the second flow gap. Under the interaction of the sealing cap 15, the movable part 26 moves towards the fourth cavity 2221, and finally, there is a first flow gap between the movable part 26 and the wall of the inlet hole. Then, the first oil-locking component 13 is moved away from the hydraulic pump 11, so that the first cavity 121 and the hydraulic pump 11, and the first cavity 121 and the second cavity 122 are connected, thus completing the pipeline connection between the hydraulic pump 11 and the shock absorber 21. Then, the hydraulic component 1 and the shock absorber 2 are fixedly connected by an external detachable connector.

[0051] In some embodiments, this application also provides a vehicle that includes the active hydraulic suspension damping structure described in any of the above embodiments. The beneficial effects of this vehicle are the same as those of the active hydraulic suspension damping structure, and will not be repeated here.

[0052] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0053] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0054] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0055] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. An active hydraulic suspension damping structure, characterized in that, The active hydraulic suspension damping structure includes: A hydraulic assembly, comprising a hydraulic pump, a first valve housing, and a first oil locking element, wherein the first valve housing has a first oil reservoir, the hydraulic pump is connected to the first oil reservoir, and the first oil locking element is movably connected in the communication path between the hydraulic pump and the first oil reservoir. The shock absorption assembly includes a shock absorber, a second valve housing, and a second oil locking element. The second valve housing has a second oil reservoir inside. The hydraulic pump is connected to the second oil reservoir, and the second oil locking element is movably connected in the second oil reservoir. When the hydraulic assembly and the shock absorber assembly are in a separated state, the first oil-locking component blocks the communication path between the hydraulic pump and the first oil reservoir, and the second oil-locking component blocks the communication path between the shock absorber and the second oil reservoir. When the hydraulic assembly and the shock absorber assembly are in an installed state, the end of the second valve housing is detachably connected to the first oil reservoir, the hydraulic pump is connected to the first oil reservoir, the first oil reservoir is connected to the second oil reservoir, and the shock absorber is connected to the second oil reservoir.

2. The active hydraulic suspension damping structure according to claim 1, characterized in that, The first valve housing includes a first cavity and a second cavity that are connected, and the second cavity constitutes the first oil storage cavity. The first cavity is connected to the hydraulic pump, the first oil-locking component is movably connected in the first cavity, and the first oil-locking component moves along the extension direction of the first cavity toward or away from the hydraulic pump; When the hydraulic assembly and the shock absorber assembly are in a separated state, the first oil-locking element moves along the extension direction of the first cavity toward the hydraulic pump and blocks the connection between the first cavity and the hydraulic pump.

3. The active hydraulic suspension damping structure according to claim 2, characterized in that, The hydraulic pump and the first cavity are connected by a first connecting pipe; When the hydraulic assembly and the shock absorption assembly are in a separated state, the first oil-locking element blocks the connection between the first cavity and the first connecting pipe.

4. The active hydraulic suspension damping structure according to claim 2, characterized in that, A first sealing element is provided between the outer wall of the first oil-locking component and the inner wall of the first cavity. The first sealing element is located on the side away from the hydraulic pump at the communication part between the first cavity and the second cavity.

5. The active hydraulic suspension damping structure according to claim 2, characterized in that, The second valve housing includes a first housing and a second housing. The first housing has a third cavity, and the second housing has a fourth cavity. The third cavity and the fourth cavity are connected. The fourth cavity is connected to the shock absorber. The third cavity and the fourth cavity together constitute the second oil storage cavity. The second oil locking element is movably connected in the fourth cavity and moves toward or away from the third cavity. When the hydraulic assembly and the shock absorber assembly are in a separated state, the second oil-locking element blocks the communication between the third cavity and the fourth cavity. When the hydraulic assembly and the shock absorber assembly are assembled, the first housing is inserted into the second cavity, and the third cavity and the second cavity are connected. The first oil-locking element moves away from the hydraulic pump and away from the third cavity. The hydraulic pump is connected through the first cavity and the second cavity, and the shock absorber is connected through the fourth cavity and the third cavity.

6. The active hydraulic suspension damping structure according to claim 5, characterized in that, The fourth cavity and the shock absorber are connected through a second connecting pipe. When the hydraulic component and the shock absorber are in a separated state, the second oil-locking component simultaneously blocks the connection between the second connecting pipe and the fourth cavity.

7. The active hydraulic suspension damping structure according to claim 5, characterized in that, The shock absorption assembly also includes elastic components and movable components; One end of the elastic element is fixed to the inner wall of the third cavity, and the other end of the elastic element is fixed to the end of the movable element. The elastic element is in a compressed state. The first housing has an inlet hole at its end facing the first valve housing. The movable member is movably connected in the inlet hole. When the hydraulic assembly and the shock absorber assembly are in a separated state, the movable member blocks the inlet hole. The compression amount of the elastic member is a first compression amount. When the hydraulic assembly and the shock absorber assembly are in an assembled state, the movable member is at least partially located in the third cavity, and there is a first flow gap between the movable member and the wall of the inlet hole. The third cavity and the second cavity are connected through the first flow gap. The compression amount of the elastic member is a second compression amount, wherein the second compression amount is greater than the first compression amount.

8. The active hydraulic suspension damping structure according to claim 7, characterized in that, The hydraulic assembly also includes a sealing cap, which is movably connected to the end of the second cavity away from the first cavity; The inner wall of the second cavity is provided with a clearance groove. When the hydraulic component and the shock absorber are in a separated state, the sealing cover is sealed and connected to the end of the second cavity away from the first cavity, and is located on the side of the clearance groove away from the first cavity. When the hydraulic component and the shock absorber are in an assembled state, the sealing cover is located at the clearance groove. There is a second flow gap between the sealing cover and the clearance groove. The second cavity enters the third cavity through the second flow gap, and the end of the movable part abuts against the sealing cover.

9. The active hydraulic suspension damping structure according to claim 6, characterized in that, A second sealing element is provided on the outer wall of the first housing. When the first housing is inserted into the second cavity, the second sealing element is located on the inner wall of the second cavity and the outer wall of the first housing. A third sealing element is provided between the outer wall of the second oil-locking element and the inner wall of the fourth cavity. The third sealing element is located on the side away from the third cavity at the connection between the fourth cavity and the second connecting pipe.

10. A vehicle, characterized in that, The vehicle includes the active hydraulic suspension damping structure as described in any one of claims 1 to 9.

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