Hydraulic runner structure, hydraulic suspension system and vehicle

Abstract

The utility model provides a hydraulic runner structure, a hydraulic suspension system and a vehicle. The hydraulic runner structure comprises a first runner plate, a second runner plate and a decoupling film, a gap is formed between the first runner plate and the second runner plate, and the decoupling film is arranged in the gap; the first runner plate is provided with a first open hole, the second runner plate is provided with a second open hole at a position corresponding to the first open hole, and the first open hole and the second open hole are respectively communicated with the gap; one part of the decoupling film is connected to the first runner plate, and the other part of the decoupling film can be communicated with the first open hole and the second open hole or can be used for separating the first open hole and the second open hole. And the cavitation phenomenon is avoided, and abnormal sound generated by bubble expansion or breakage caused by the cavitation phenomenon is also avoided, so that a vehicle has better driving stability at low-frequency large amplitude and high-frequency small amplitude, and the NVH performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a hydraulic flow channel structure, a hydraulic suspension system and a vehicle. Background Art

[0002] With the advancement and development of science and technology, people have put forward higher requirements for the driving comfort of vehicles. Among them, the hydraulic flow channel structure of the hydraulic suspension system plays a more important role in the vibration transmission of the vehicle, affecting the NVH (Noise, Vibration, Harshness) performance of the vehicle.

[0003] In the prior art, the hydraulic flow channel structure is arranged in the damping fluid circulation chamber of the hydraulic suspension system, and the hydraulic flow channel structure generally includes an upper flow channel plate, a lower flow channel plate and a decoupling membrane, and the decoupling membrane is movably connected between the upper flow channel plate and the lower flow channel plate. The upper flow channel plate and the lower flow channel plate are respectively provided with grooves and enclosed to form a channel for the damping fluid to circulate.

[0004] However, the inventors found in the process of studying the prior art that when the vehicle is driving under different working conditions such as low frequency and large amplitude or high frequency and small amplitude, the damping fluid will be quickly ejected in the channel to form cavitation, causing abnormal noise, and the expansion or rupture of bubbles generated by cavitation will also produce abnormal noise. In addition, the decoupling membrane is prone to hit the upper flow channel plate or the lower flow channel plate during vibration, causing abnormal noise and reducing the NVH performance of the vehicle. Utility Model Content

[0005] In view of this, the utility model aims to provide a vehicle defrosting system and a vehicle, so as to solve the problem in the prior art that the hydraulic flow channel structure is prone to cavitation and abnormal noise, thereby affecting the NVH performance of the vehicle.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A hydraulic flow channel structure, comprising: a first flow channel plate, a second flow channel plate and a decoupling membrane, wherein a gap is provided between the first flow channel plate and the second flow channel plate, and the decoupling membrane is provided in the gap;

[0008] The first flow channel plate is provided with a first opening, the second flow channel plate is provided with a second opening at a position corresponding to the first opening, and the first opening and the second opening are respectively connected to the gap;

[0009] A portion of the decoupling membrane is connected to the first flow channel plate, and another portion of the decoupling membrane can connect the first opening and the second opening, or separate the first opening and the second opening.

[0010] Optionally, the decoupling membrane includes a fixed portion and a movable portion connected to the fixed portion;

[0011] The fixed portion is connected to the first flow channel plate, the movable portion is movably arranged in the gap, the movable portion is a disc movable portion, the fixed portion is located at the center of the disc movable portion, the disc movable portion contracts radially to connect the first opening and the second opening, or the disc movable portion expands radially to separate the first opening and the second opening.

[0012] Optionally, the first flow channel plate is further provided with a third opening, the third opening is arranged in the middle area of ​​the first flow channel plate, and the third opening is connected to the gap, and when the movable part expands radially, the third opening is used to discharge the damping fluid between the decoupling membrane and the first flow channel plate.

[0013] Optionally, the cross-sectional shape of the movable part of the disc is W-shaped;

[0014] When the decoupling membrane is subjected to pressure, the disc movable portion expands radially to separate the first opening and the second opening;

[0015] When the pressure on the decoupling membrane is released, the disc movable portion contracts in the radial direction to connect the first opening with the second opening.

[0016] Optionally, a through hole is provided on the edge of the disc movable portion of the decoupling membrane.

[0017] Optionally, the first flow channel plate is provided with a connection hole, and the fixing portion of the decoupling membrane protrudes toward the first flow channel plate;

[0018] The fixing portion is clamped in the connecting hole so that the decoupling membrane is connected to the first flow channel plate.

[0019] Optionally, a guide slope is provided on a side of the first flow channel plate close to the decoupling membrane, and the guide slope is used to guide the movement of the movable part of the decoupling membrane.

[0020] Optionally, the hydraulic flow channel structure further includes a leather cup and a leather cup frame, the leather cup frame is provided with a mounting groove, the leather cup is connected to the notch of the mounting groove, and the first flow channel plate and the second flow channel plate are connected to the groove bottom of the mounting groove;

[0021] The leather cup and the first flow channel plate are spaced apart to form a liquid flow cavity, a liquid flow channel is provided in the leather cup frame, a first liquid flow hole is also provided at the edge of the first flow channel plate, and a second liquid flow hole is provided at a position opposite to the first flow channel plate. The liquid flow channel is connected with the first liquid flow hole, the second liquid flow hole and the liquid flow cavity.

[0022] Compared with the prior art, the hydraulic flow channel structure provided by the utility model has the following advantages:

[0023] In an embodiment of the present application, the hydraulic flow channel structure includes: the hydraulic flow channel structure includes: a first flow channel plate, a second flow channel plate and a decoupling membrane, a gap is provided between the first flow channel plate and the second flow channel plate, and the decoupling membrane is arranged in the gap; the first flow channel plate is provided with a first opening, and the second flow channel plate is provided with a second opening at a position corresponding to the first opening, and the first opening and the second opening are respectively connected to the gap; a part of the decoupling membrane is connected to the first flow channel plate, and another part of the decoupling membrane can connect the first opening and the second opening, or separate the first opening and the second opening. In this way, the decoupling membrane is connected to the first flow channel plate, so that the decoupling membrane has better connection stability, and avoids the decoupling membrane from hitting the first flow channel plate or the second flow channel plate to produce abnormal noise. When the vehicle is in a low-frequency and large-amplitude driving condition, the amplitude transmitted to the hydraulic flow channel structure is large. Under the action of vehicle vibration and damping fluid, the decoupling membrane is subjected to a large driving force to move toward the first flow channel plate, and is deformed and blocked between the first opening and the second opening, thereby preventing the damping fluid with large power from being ejected from the first opening and the second opening to form cavitation, and also preventing the abnormal noise caused by the expansion or rupture of bubbles generated by the cavitation phenomenon, and making the vehicle have a higher damping performance under low-frequency conditions. When the vehicle is in a high-frequency and small-amplitude driving condition, the amplitude transmitted to the hydraulic flow channel structure is small, and the driving force generated by the vehicle vibration and damping fluid on the decoupling membrane is small. At this time, the decoupling membrane recovers the deformation and moves away from the first flow channel plate, so that the first opening and the second opening are restored to be connected, so that the damping fluid with small power circulates along the first opening and the second opening, reducing the pressure on the hydraulic flow channel structure, so that the damping fluid has a better circulation effect in its circulation cavity, and making the vehicle have a lower stiffness under high-frequency conditions, which is beneficial to its structural stability. As a result, the vehicle has better driving stability under both low-frequency and large-amplitude and high-frequency and small-amplitude driving conditions, thereby improving the vehicle's NVH performance.

[0024] Another object of the utility model is to provide a hydraulic suspension system to solve the problem that the hydraulic flow channel structure of the hydraulic suspension system in the prior art is prone to cavitation and abnormal noise, thereby affecting the NVH performance of the vehicle.

[0025] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0026] The hydraulic suspension system includes a suspension frame, a main spring, a support arm and the hydraulic flow channel structure;

[0027] The main spring is connected to the suspension frame, the support arm is sleeved on the main spring, and the hydraulic flow channel structure is connected to a position on the support arm opposite to the main spring.

[0028] The advantages of the hydraulic suspension system and the hydraulic channel structure described above relative to the prior art are the same and will not be described in detail here.

[0029] Another object of the utility model is to provide a vehicle to solve the problem in the prior art that the hydraulic flow channel structure of the hydraulic suspension system of the vehicle is prone to cavitation and abnormal noise, thereby affecting the NVH performance of the vehicle.

[0030] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0031] A vehicle comprises the hydraulic suspension system.

[0032] The advantages of the vehicle and the above-mentioned hydraulic suspension system over the prior art are the same and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0034] Figure 1 One of the schematic diagrams of a hydraulic flow channel structure provided by an embodiment of the utility model;

[0035] Figure 2 A hydraulic flow channel structure provided in an embodiment of the utility model Figure 1 sectional view of

[0036] Figure 3 A hydraulic flow channel structure provided in an embodiment of the utility model Figure 1 sectional view of;

[0037] Figure 4 A schematic structural diagram of a first flow channel plate of a hydraulic flow channel structure provided in an embodiment of the utility model;

[0038] Figure 5 A hydraulic flow channel structure provided in an embodiment of the utility model Figure 4 sectional view of;

[0039] Figure 6 A schematic diagram of a decoupling membrane of a hydraulic flow channel structure provided by an embodiment of the utility model;

[0040] Figure 7 A hydraulic flow channel structure provided in an embodiment of the utility model Figure 6 Side view of

[0041] Figure 8 One of the structural schematic diagrams of a second flow channel plate of a hydraulic flow channel structure provided in an embodiment of the utility model;

[0042] Fig. 9 A second structural schematic diagram of a second flow channel plate of a hydraulic flow channel structure provided in an embodiment of the utility model;

[0043] Fig.10 A hydraulic flow channel structure provided in an embodiment of the utility model Fig. 9 sectional view of;

[0044] Fig.11 A second schematic diagram of a hydraulic flow channel structure provided in an embodiment of the utility model;

[0045] Fig.12 A third schematic diagram of a hydraulic flow channel structure provided in an embodiment of the utility model;

[0046] Fig.13 A fourth schematic diagram of a hydraulic flow channel structure provided in an embodiment of the utility model;

[0047] Fig.14 A structural schematic diagram of a leather cup frame with a hydraulic flow channel structure provided by an embodiment of the utility model;

[0048] Fig.15 A structural schematic diagram of a leather cup of a hydraulic flow channel structure provided by an embodiment of the utility model;

[0049] Fig.16 A schematic diagram of the structure of a hydraulic suspension system provided by an embodiment of the utility model;

[0050] Fig.17 A schematic structural diagram of a support arm of a hydraulic suspension system provided by an embodiment of the utility model;

[0051] Fig.18 A schematic diagram of the structure of a main spring of a hydraulic suspension system provided by an embodiment of the utility model;

[0052] Fig.19 A schematic structural diagram of an inner core of a hydraulic suspension system provided in an embodiment of the utility model.

[0053] Explanation of the reference numerals: 10-first flow channel plate; 20-second flow channel plate; 30-decoupling membrane; 101-gap; 11-first opening; 21-second opening; 31-fixed portion; 32-movable portion; 12-third opening; 33-through hole; 13-connecting hole; 14-guide slope; 40-leather cup; 50-leather cup rack; 51-mounting groove; 52-liquid flow channel; 15-first liquid flow hole; 22-second liquid flow hole; 23-damping liquid introduction hole; 24-positioning column; 16-positioning hole; 25-sealing ring; 17-sealing groove; 60-suspension frame; 70-main spring; 80-support arm; 90-inner core. DETAILED DESCRIPTION

[0054] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0055] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0056] like Figures 1 to 15 , which shows a schematic diagram of a hydraulic channel structure according to an embodiment of the present application, wherein the hydraulic channel structure comprises: a first channel plate 10, a second channel plate 20 and a decoupling membrane 30, wherein the first channel plate 10 is connected to the second channel plate 20, and the decoupling membrane 30 is disposed in a gap 101;

[0057] The first flow channel plate 10 is provided with a first opening 11, and the second flow channel plate 20 is provided with a second opening 21 at a position corresponding to the first opening 11, and the first opening 11 and the second opening 21 are respectively connected to the gap 101;

[0058] A portion of the decoupling membrane 30 is connected to the first flow channel plate 10 , and another portion of the decoupling membrane 30 can connect the first opening 11 and the second opening 21 , or separate the first opening 11 and the second opening 21 .

[0059] In the embodiment of the present application, the decoupling membrane 30 is connected to the first flow channel plate 10, so that the decoupling membrane 30 has a good connection stability, and avoids the decoupling membrane 30 from hitting the first flow channel plate 10 or the second flow channel plate 20 to produce abnormal noise. When the vehicle is in a low-frequency and large-amplitude driving condition, for example, the vehicle is driving on a washboard road or a cobblestone road, such as Fig.12 As shown, the amplitude transmitted from the vehicle to the hydraulic channel structure is relatively large. Under the action of vehicle vibration and damping fluid, the decoupling membrane 30 is driven by a relatively large force to move toward the first channel plate 10, and deforms to block the first opening 11 and the second opening 21, thereby preventing the damping fluid with relatively large power from spraying out from the first opening 11 and the second opening 21 to form cavitation, and also preventing abnormal noise caused by the expansion or rupture of bubbles generated by the cavitation, and enabling the vehicle to have higher damping properties under low frequency conditions.

[0060] When the vehicle is in a high-frequency and small-amplitude driving condition, such as Fig.13 As shown, the amplitude transmitted to the hydraulic channel structure is small, and the driving force generated by the vehicle vibration and the damping fluid on the decoupling membrane 30 is small. At this time, the decoupling membrane 30 recovers its deformation and moves away from the first channel plate 10, so that the first opening 11 and the second opening 21 are restored to be connected, so that the damping fluid with less power flows along the first opening 11 and the second opening 21, reducing the pressure on the hydraulic channel structure, so that the damping fluid has a better circulation effect in its circulation cavity, and the vehicle has a lower stiffness in a high-frequency state, which is beneficial to its structural stability. As a result, the vehicle has better driving stability under both low-frequency and large-amplitude and high-frequency and small-amplitude driving conditions, and improves the NVH performance of the vehicle.

[0061] Specifically, in the embodiment of the present application, the hydraulic flow channel structure is arranged in the damping liquid flow chamber of the hydraulic suspension system, and the damping liquid flow chamber can be divided into an upper liquid chamber and a lower liquid chamber. Specifically, the side of the first flow channel plate 10 away from the second flow channel plate 20 is the upper liquid chamber, and the side of the second flow channel plate 20 away from the first flow channel plate 10 is the lower liquid chamber. The second flow channel plate 20 is provided with a damping liquid introduction hole 23 at a position corresponding to the lower liquid chamber, that is, at a position corresponding to the gap 101 between the first flow channel plate 10 and the second flow channel plate 20, so that the damping liquid can be transferred from the lower liquid chamber to the upper liquid chamber through the damping liquid introduction hole 23. When the decoupling membrane 30 moves and deforms in the gap 101, so that the first opening 11 and the second opening 21 are restored to be connected, the upper liquid chamber and the lower liquid chamber can be connected through the first opening 11 and the second opening 21, thereby reducing the negative pressure in the damping liquid flow chamber.

[0062] For example, in the embodiment of the present application, the first flow channel plate 10 can be circular, elliptical, polygonal, etc., and its material can be metal or plastic, etc. The embodiment of the present application does not limit the specific shape and material of the first flow channel plate 10. The second flow channel plate 20 can be circular, elliptical, polygonal, etc., and its material can be metal or plastic, etc., for example, it is formed by an integral injection molding process using PA (Polyamide, polyamide resin) 66, and the embodiment of the present application does not limit the specific shape and material of the second flow channel plate 20. The decoupling membrane 30 can be made of materials such as rubber or silicone, so that the decoupling membrane 30 has a good elastic effect, so that it can be more flexibly connected to the gap 101 between the first flow channel plate 10 and the second flow channel plate 20.

[0063] In the embodiment of the present application, for example, the number of the first openings 11 can be multiple, such as 3, 5, 8 or 10, etc., and the multiple first openings 11 can be distributed along the circumferential intervals of the first flow channel plate 10. The shape of the first opening 11 can be circular, rectangular or fan-shaped, etc., and can be set according to actual needs. The embodiment of the present application does not limit the specific number, shape and setting method of the first opening 11. Similarly, the number of the second openings 21 can be multiple, such as 3, 5, 8 or 10, etc., and the multiple second openings 21 can be distributed along the circumferential intervals of the second flow channel plate 20. The shape of the second opening 21 can also be circular, rectangular or fan-shaped, etc., and can be set according to actual needs. The embodiment of the present application does not limit the specific number, shape and setting method of the second opening 21. Thus, the flow control of the damping fluid is achieved at multiple positions in the circumferential direction of the first flow channel plate 10 and the second flow channel plate 20.

[0064] Optionally, in the embodiment of the present application, the first flow channel plate 10 is provided with a positioning hole 16, and the second flow channel plate 20 is provided with a positioning post 24 at a position corresponding to the positioning hole 16, and the positioning post 24 is penetrated through the positioning hole 16 to position the installation of the first flow channel plate 10 and the second flow channel plate 20, thereby improving the installation accuracy between the first flow channel plate 10 and the second flow channel plate 20. In addition, the positioning post 24 may be provided on the first flow channel plate 10, and the positioning hole 16 may be provided on the second flow channel plate 20, and the embodiment of the present application may not be limited to this.

[0065] In some optional embodiments of the present application, a sealing groove 17 is provided on one side of the first flow channel plate 10 close to the second flow channel plate 20, and a sealing ring 25 is provided on the second flow channel plate 20 at a position corresponding to the sealing groove 17, and the sealing ring 25 is embedded in the sealing groove 17 to seal the first flow channel plate 10 and the second flow channel plate 20. In this way, the sealing between the first flow channel plate 10 and the second flow channel plate 20 is enhanced through the structural design of the sealing groove 17 and the sealing ring 25. Specifically, the sealing ring 25 and the sealing groove 17 are arranged on the periphery of the gap 101 between the first flow channel plate 10 and the second flow channel plate 20, and have a good sealing effect on the gap 101.

[0066] Optionally, in the embodiment of the present application, the decoupling membrane 30 includes a fixed portion 31 and a movable portion 32 connected to the fixed portion 31; the fixed portion 31 is connected to the first flow channel plate 10, the movable portion 32 is movably arranged in the gap 101, the movable portion 32 is a disc movable portion, the fixed portion 31 is located at the center of the disc movable portion, the disc movable portion contracts in the radial direction to connect the first opening 11 and the second opening 21, or the disc movable portion expands in the radial direction to separate the first opening 11 and the second opening 21. In this way, a relatively stable and reliable connection between the decoupling membrane 30 and the first flow channel plate 10 is achieved through the fixed portion 31, and the decoupling membrane 30 is more flexibly arranged in the gap 101 through the movable portion 32. When the movable portion 32 contracts in the radial direction, its diameter is reduced, and the blocking effect on the first opening 11 and the second opening 21 is released, so that the first opening 11 and the second opening 21 are connected. When the movable portion 32 expands in the radial direction, its diameter increases, thereby achieving a blocking effect between the first opening 11 and the second opening 21 .

[0067] In the embodiment of the present application, optionally, the first flow channel plate 10 is further provided with a third opening 12, the third opening 12 is arranged in the middle area of ​​the first flow channel plate 10, and the third opening 12 is connected to the gap 101, and when the movable portion 32 expands radially, the third opening 12 is used to discharge the damping fluid between the decoupling membrane 30 and the first flow channel plate 10. Specifically, the third opening 12 can be arranged on the inner periphery of the first opening 11, and when the vehicle is in a low-frequency and large-amplitude driving condition, the decoupling membrane 30 is subjected to a large driving force to move toward the first flow channel plate 10, so that the movable portion 32 of the decoupling membrane 30 expands radially, and at this time, the damping fluid between the decoupling membrane 30 and the first flow channel plate 10 can be discharged more smoothly through the third opening 12.

[0068] For example, in the embodiment of the present application, the number of the third openings 12 can be multiple, such as 3, 5, 8 or 10, etc., and the multiple third openings 12 can be distributed at intervals along the circumference of the first flow channel plate 10. The shape of the third openings 12 can be circular, rectangular or fan-shaped, etc., and can be set according to actual needs. The embodiment of the present application does not limit the specific setting number, shape and setting method of the third openings 12.

[0069] Optionally, in the embodiment of the present application, the cross-sectional shape of the movable part of the disc is W-shaped; when the decoupling membrane 30 is subjected to pressure, the movable part of the disc expands radially to separate the first opening 11 and the second opening 21; when the pressure on the decoupling membrane 30 is released, the movable part of the disc contracts radially to connect the first opening 11 and the second opening 21. Specifically, when the vehicle is in a low-frequency and large-amplitude driving condition, the decoupling membrane 30 is subjected to a large pressure, and the movable part of the disc with a W-shaped cross-sectional shape moves vertically toward the first flow channel plate 10 under the action of vehicle vibration and damping fluid, and is compressed. At the same time, the movable part of the disc with a W-shaped cross-sectional shape expands radially to block between the first opening 11 and the second opening 21. When the vehicle is in a high-frequency and small-amplitude driving condition, the large pressure on the decoupling membrane 30 is released, and the W-shaped disc movable portion moves away from the first flow channel plate 10 in the vertical direction to restore the deformation and stretch. At the same time, the W-shaped disc movable portion contracts radially, so that the first opening 11 and the second opening 21 are connected.

[0070] In the embodiment of the present application, optionally, a through hole 33 is provided at the edge of the movable portion 32 of the decoupling membrane 30. In this way, the flow of the damping fluid in the first opening 11 and the second opening 21 is buffered by the through hole 33 located at the edge to reduce the flow resistance of the damping fluid and avoid a large resistance when the damping fluid flows through the decoupling membrane 30. For example, when the movable portion of the disc contracts in the radial direction, the through hole 33 is not compressed by an external force and is in an open state, and the damping fluid can flow along the first opening 11, the through hole 33 and the second opening 21; when the movable portion of the disc expands in the radial direction, the through hole 33 is compressed and is in a closed state, and the movable portion of the decoupling membrane blocks the first opening 11 and the second opening 21. Specifically, when the vehicle is in a high-frequency and small-amplitude driving condition, the movable portion of the disc contracts radially, and the through holes 33 on its edge improve the patency of the damping fluid at the first opening 11 and the second opening 21, thereby preventing part of the edge structure of the decoupling membrane 30 from being blocked between the first opening 11 and the second opening 21 during vehicle vibration, thereby affecting the flow of the damping fluid at the first opening 11 and the second opening 21.

[0071] By way of example, the number of through holes 33 may be one or more, such as 3, 5, 8 or 10, etc., and the plurality of through holes 33 may be distributed at circumferential intervals along the movable portion 32 of the decoupling membrane 30. The shape of the through hole 33 may be C-shaped, circular or fan-shaped, etc., and may be set according to actual needs. The embodiment of the present application may not limit the specific number, shape and setting method of the through holes 33.

[0072] Optionally, in the embodiment of the present application, the first flow channel plate 10 is provided with a connection hole 13, and the fixing portion 31 of the decoupling membrane 30 protrudes toward the first flow channel plate 10; the fixing portion 31 is snapped into the connection hole 13, so that the decoupling membrane 30 is connected to the first flow channel plate 10. In this way, a relatively stable and reliable connection is achieved with the fixing portion 31 of the decoupling membrane 30 through the connection hole 13, and the structure is simple and the operation is convenient.

[0073] In the embodiment of the present application, optionally, a guide slope 14 is provided on one side of the first flow channel plate 10 close to the decoupling membrane 30, and the guide slope 14 is used to guide the movement of the movable portion 32 of the decoupling membrane 30. In this way, when the movable portion 32 of the decoupling membrane 30 moves up and down in the gap 101, the movement of the movable portion 32 can be guided by the guide slope 14 to prevent the movable portion 32 from being easily stuck, and at the same time, it can also play a certain supporting role for the movable portion of the decoupling membrane 30.

[0074] Optionally, in the embodiment of the present application, the hydraulic flow channel structure further includes a leather cup 40 and a leather cup frame 50, the leather cup frame 50 is provided with a mounting groove 51, the leather cup 40 is connected to the notch of the mounting groove 51, the first flow channel plate 10 and the second flow channel plate 20 are connected to the groove bottom of the mounting groove 51; the leather cup 40 and the first flow channel plate 10 are arranged at intervals to form a liquid flow cavity, a liquid flow channel 52 is provided in the leather cup frame 50, the edge of the first flow channel plate 10 is also provided with a first liquid flow hole 15, the second flow channel plate 20 is provided with a second liquid flow hole 22 at a position opposite to the first flow channel plate 10, and the liquid flow channel 52 is connected with the first liquid flow hole 15, the second liquid flow hole 22 and the liquid flow cavity. Among them, the liquid flow cavity between the leather cup 40 and the first flow channel plate 10 is the upper liquid chamber of the damping liquid flow cavity located above the first flow channel plate 10. In this way, when the vehicle is in a low-frequency and large-amplitude driving condition, the decoupling membrane 30 is deformed by a large driving force and is blocked between the first opening 11 and the second opening 21. At this time, the damping fluid can pass through the first liquid flow hole 15 and the second liquid flow hole 22, and be transmitted along the liquid flow channel 52 in the leather cup frame 50 to the liquid flow cavity between the leather cup 40 and the first flow channel plate 10, thereby realizing the circulation of the damping fluid in the first flow channel plate 10, the second flow channel plate 20 and the liquid flow cavity.

[0075] Specifically, in the embodiment of the present application, the leather cup 40 is used to provide a seal to prevent air from entering, and during the transmission of the damping fluid, the leather cup 40 can be deformed under the action of air pressure. For example, the leather cup 40 can be an integrally formed structure, formed by rubber vulcanization, and the leather cup frame 50 is used to support the leather cup 40.

[0076] Optionally, in the embodiment of the present application, the first flow channel plate 10, the second flow channel plate 20, the leather cup 40 and the leather cup frame 50 are all provided with mutually interpenetrating damping fluid filling holes, so that the damping fluid can be injected into the hydraulic flow channel structure through the damping fluid filling holes. In summary, the hydraulic flow channel structure provided by the utility model has the following advantages:

[0077] In an embodiment of the present application, the hydraulic flow channel structure includes: the hydraulic flow channel structure includes: a first flow channel plate, a second flow channel plate and a decoupling membrane, a gap is provided between the first flow channel plate and the second flow channel plate, and the decoupling membrane is arranged in the gap; the first flow channel plate is provided with a first opening, and the second flow channel plate is provided with a second opening at a position corresponding to the first opening, and the first opening and the second opening are respectively connected to the gap; a part of the decoupling membrane is connected to the first flow channel plate, and another part of the decoupling membrane can connect the first opening and the second opening, or separate the first opening and the second opening. In this way, the decoupling membrane is connected to the first flow channel plate, so that the decoupling membrane has better connection stability, and avoids the decoupling membrane from hitting the first flow channel plate or the second flow channel plate to produce abnormal noise. When the vehicle is in a low-frequency and large-amplitude driving condition, the amplitude transmitted to the hydraulic flow channel structure is large. Under the action of vehicle vibration and damping fluid, the decoupling membrane is subjected to a large driving force to move toward the first flow channel plate, and is deformed and blocked between the first opening and the second opening, thereby preventing the damping fluid with large power from being ejected from the first opening and the second opening to form cavitation, and also preventing the abnormal noise caused by the expansion or rupture of bubbles generated by the cavitation phenomenon, and making the vehicle have a higher damping performance under low-frequency conditions. When the vehicle is in a high-frequency and small-amplitude driving condition, the amplitude transmitted to the hydraulic flow channel structure is small, and the driving force generated by the vehicle vibration and damping fluid on the decoupling membrane is small. At this time, the decoupling membrane recovers the deformation and moves away from the first flow channel plate, so that the first opening and the second opening are restored to be connected, so that the damping fluid with small power circulates along the first opening and the second opening, reducing the pressure on the hydraulic flow channel structure, so that the damping fluid has a better circulation effect in its circulation cavity, and making the vehicle have a lower stiffness under high-frequency conditions, which is beneficial to its structural stability. As a result, the vehicle has better driving stability under both low-frequency and large-amplitude and high-frequency and small-amplitude driving conditions, thereby improving the vehicle's NVH performance.

[0078] Reference Figure 16-19 A structural schematic diagram of a hydraulic suspension system provided by an embodiment of the utility model is shown, wherein the hydraulic suspension system includes a suspension frame 60, a main spring 70, a support arm 80 and the hydraulic channel structure; the main spring 70 is connected to the suspension frame 60, the support arm 80 is sleeved on the main spring 70, and the hydraulic channel structure is connected to the support arm 80 at a position opposite to the main spring 70.

[0079] Specifically, in the embodiment of the present application, a cavity is provided in the main spring 70 for storing the damping fluid. The second flow channel plate 20 and the main spring 70 enclose a lower liquid chamber of the damping fluid circulation cavity. The second flow channel plate 20 is provided with a damping fluid introduction hole 23 at a position corresponding to the cavity. The damping fluid introduction hole 23 is connected to the gap 101 to realize the circulation of the damping fluid between the main spring 70 and the second flow channel plate 20, so that the damping fluid can be transmitted to the gap 101 between the first flow channel plate 10 and the second flow channel plate 20 through the damping fluid introduction hole 23.

[0080] Optionally, in the embodiment of the present application, the main spring 70 is further provided with a connecting plate, and the connecting plate includes a first limiting portion extending along the X direction, a second limiting portion extending along the Y direction, and a third limiting portion extending along the Z direction. The main spring 70 and the support arm 80 are limited in the X direction, the Y direction, and the Z direction by the first limiting portion, the second limiting portion, and the third limiting portion, respectively, so as to improve the accuracy of the connection between the main spring 70 and the support arm 80. Among them, the X direction, the Y direction, and the Z direction can be the directions of the X axis, the Y axis, and the Z axis in the spatial coordinate system. For example, the main spring 70 can be made of rubber or silicone material, and is formed by a vulcanization process, and the connecting plate of the main spring 70 is bonded to the connecting portion of the support arm 80 by vulcanization.

[0081] Specifically, the support arm 80 is provided with a fixing groove for connecting the leather cup frame 50 of the hydraulic channel structure, providing a relatively stable and reliable support and installation for the hydraulic channel structure. The support arm 80 is also provided with a mounting hole for connecting the engine, and the number of the mounting holes can be multiple, and the multiple mounting holes are arranged at intervals. For example, the support arm 80 can be an integrally formed structure, which is cast using metal, such as aluminum alloy, so that the support arm 80 has good structural stability.

[0082] Optionally, in the embodiment of the present application, the hydraulic suspension system may further include an inner core 90, which is connected between the main spring 70 and the suspension frame 60, and provides a mounting base for the main spring 70 through the inner core 90. For example, the inner core 90 may be cast using a metal such as an aluminum alloy, so that the inner core 90 has good structural stability. For example, the inner core 90 and the suspension frame 60 may be connected stably and reliably through fasteners such as bolts, studs or screws.

[0083] Specifically, in the embodiment of the present application, the suspension frame 60 provides a base for the hydraulic suspension system, which is used to be fixed on the vehicle body or the frame. Both sides of the suspension frame 60 may be provided with mounting holes for connecting the vehicle body or the frame. For example, the suspension frame 60 may be an integrally formed structure, which is cast using metal, such as aluminum alloy, so that the suspension frame 60 has good structural stability.

[0084] In some optional embodiments of the present application, the hydraulic suspension also includes a body connecting frame, which is connected to the suspension frame 60. For example, the body connecting frame can be connected to the suspension frame 60 by fasteners such as bolts, studs or screws with a relatively stable and reliable structure, thereby realizing the connection between the suspension frame 60 and the body or frame.

[0085] In summary, the hydraulic suspension system provided by the utility model has the following advantages:

[0086] In an embodiment of the present application, the hydraulic suspension system includes a suspension frame, a main spring, a support arm, and the hydraulic flow channel structure; the main spring is connected to the suspension frame, the support arm is sleeved on the main spring, the hydraulic flow channel structure is connected to the position of the support arm opposite to the main spring, and the hydraulic flow channel structure includes: the hydraulic flow channel structure includes: a first flow channel plate, a second flow channel plate, and a decoupling membrane, a gap is provided between the first flow channel plate and the second flow channel plate, and the decoupling membrane is provided in the gap; the first flow channel plate is provided with a first opening, the second flow channel plate is provided with a second opening at a position corresponding to the first opening, and the first opening and the second opening are respectively connected to the gap; a part of the decoupling membrane is connected to the first flow channel plate, and another part of the decoupling membrane can connect the first opening and the second opening, or separate the first opening and the second opening. In this way, the decoupling membrane is connected to the first flow channel plate, so that the decoupling membrane has a better connection stability, and avoids the decoupling membrane from hitting the first flow channel plate or the second flow channel plate to produce abnormal noise. When the vehicle is in a low-frequency and large-amplitude driving condition, the amplitude transmitted to the hydraulic flow channel structure is large. Under the action of vehicle vibration and damping fluid, the decoupling membrane is subjected to a large driving force to move toward the first flow channel plate, and is deformed and blocked between the first opening and the second opening, thereby preventing the damping fluid with large power from being ejected from the first opening and the second opening to form cavitation, and also preventing the abnormal noise caused by the expansion or rupture of bubbles generated by the cavitation phenomenon, and making the vehicle have a higher damping performance under low-frequency conditions. When the vehicle is in a high-frequency and small-amplitude driving condition, the amplitude transmitted to the hydraulic flow channel structure is small, and the driving force generated by the vehicle vibration and damping fluid on the decoupling membrane is small. At this time, the decoupling membrane recovers the deformation and moves away from the first flow channel plate, so that the first opening and the second opening are restored to be connected, so that the damping fluid with small power circulates along the first opening and the second opening, reducing the pressure on the hydraulic flow channel structure, so that the damping fluid has a better circulation effect in its circulation cavity, and making the vehicle have a lower stiffness under high-frequency conditions, which is beneficial to its structural stability. As a result, the vehicle has better driving stability under both low-frequency and large-amplitude and high-frequency and small-amplitude driving conditions, thereby improving the vehicle's NVH performance.

[0087] An embodiment of the utility model further provides a vehicle, wherein the vehicle comprises the hydraulic suspension system in the above embodiment.

[0088] For example, the vehicle may include a small car, a medium car, a three-box car, a truck, a trailer, a CDV (Car Derived Van), an MPV (multi-Purpose Vehicles), an SUV (Sport Utility Vehicles), etc. The specific type of the vehicle may not be limited in the embodiments of the present application.

[0089] The vehicle described in the embodiment of the utility model has the following advantages:

[0090] In an embodiment of the present application, the vehicle includes the hydraulic suspension system, which includes a suspension frame, a main spring, a bracket and the hydraulic flow channel structure; the main spring is connected to the suspension frame, the bracket is sleeved on the main spring, the hydraulic flow channel structure is connected to the bracket at a position opposite to the main spring, and the hydraulic flow channel structure includes: the hydraulic flow channel structure includes: a first flow channel plate, a second flow channel plate and a decoupling membrane, a gap is provided between the first flow channel plate and the second flow channel plate, and the decoupling membrane is provided in the gap; the first flow channel plate is provided with a first opening, the second flow channel plate is provided with a second opening at a position corresponding to the first opening, and the first opening and the second opening are respectively connected to the gap; a part of the decoupling membrane is connected to the first flow channel plate, and another part of the decoupling membrane can connect the first opening and the second opening, or separate the first opening and the second opening. In this way, the decoupling membrane is connected to the first flow channel plate, so that the decoupling membrane has a better connection stability, and avoids the decoupling membrane from hitting the first flow channel plate or the second flow channel plate to produce abnormal noise. When the vehicle is in a low-frequency and large-amplitude driving condition, the amplitude transmitted to the hydraulic flow channel structure is large. Under the action of vehicle vibration and damping fluid, the decoupling membrane is subjected to a large driving force to move toward the first flow channel plate, and is deformed and blocked between the first opening and the second opening, thereby preventing the damping fluid with large power from being ejected from the first opening and the second opening to form cavitation, and also preventing the abnormal noise caused by the expansion or rupture of bubbles generated by the cavitation phenomenon, and making the vehicle have a higher damping performance under low-frequency conditions. When the vehicle is in a high-frequency and small-amplitude driving condition, the amplitude transmitted to the hydraulic flow channel structure is small, and the driving force generated by the vehicle vibration and damping fluid on the decoupling membrane is small. At this time, the decoupling membrane recovers the deformation and moves away from the first flow channel plate, so that the first opening and the second opening are restored to be connected, so that the damping fluid with small power circulates along the first opening and the second opening, reducing the pressure on the hydraulic flow channel structure, so that the damping fluid has a better circulation effect in its circulation cavity, and making the vehicle have a lower stiffness under high-frequency conditions, which is beneficial to its structural stability. As a result, the vehicle has better driving stability under both low-frequency and large-amplitude and high-frequency and small-amplitude driving conditions, thereby improving the vehicle's NVH performance.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic channel structure, characterized in that: The hydraulic channel structure comprises: a first channel plate, a second channel plate and a decoupling membrane, a gap is provided between the first channel plate and the second channel plate, and the decoupling membrane is provided in the gap; The first flow channel plate is provided with a first opening, the second flow channel plate is provided with a second opening at a position corresponding to the first opening, and the first opening and the second opening are respectively connected to the gap; A portion of the decoupling membrane is connected to the first flow channel plate, and another portion of the decoupling membrane can connect the first opening and the second opening, or separate the first opening and the second opening.

2. The hydraulic channel structure according to claim 1, characterized in that: The decoupling membrane comprises a fixed portion and a movable portion connected to the fixed portion; The fixed portion is connected to the first flow channel plate, the movable portion is movably arranged in the gap, the movable portion is a disc movable portion, the fixed portion is located at the center of the disc movable portion, the disc movable portion contracts radially to connect the first opening and the second opening, or the disc movable portion expands radially to separate the first opening and the second opening.

3. The hydraulic channel structure according to claim 2, characterized in that: The first flow channel plate is further provided with a third opening, which is arranged in the middle area of ​​the first flow channel plate. When the disc movable part expands radially, the third opening is used to discharge the damping fluid between the decoupling membrane and the first flow channel plate.

4. The hydraulic flow channel structure according to claim 2, characterized in that: The cross-sectional shape of the movable part of the disc is W-shaped; When the decoupling membrane is subjected to pressure, the disc movable portion expands radially to separate the first opening and the second opening; When the pressure on the decoupling membrane is released, the movable part of the disc contracts in the radial direction to connect the first opening with the second opening.

5. The hydraulic flow channel structure according to claim 2, characterized in that: The edge of the disc movable part of the decoupling membrane is provided with a through hole.

6. The hydraulic flow channel structure according to claim 2, characterized in that: The first flow channel plate is provided with a connecting hole, and the fixing portion of the decoupling membrane protrudes toward the first flow channel plate; The fixing portion is clamped in the connecting hole so that the decoupling membrane is connected to the first flow channel plate.

7. The hydraulic flow channel structure according to claim 1, characterized in that: A guide slope is provided on one side of the first flow channel plate close to the decoupling membrane, and the guide slope is used to guide the movement of the movable part of the decoupling membrane.

8. The hydraulic flow channel structure according to claim 1, characterized in that: The hydraulic flow channel structure further includes a leather cup and a leather cup frame, the leather cup frame is provided with a mounting groove, the leather cup is connected to the notch of the mounting groove, and the first flow channel plate and the second flow channel plate are connected to the groove bottom of the mounting groove; The leather cup and the first flow channel plate are spaced apart to form a liquid flow cavity, a liquid flow channel is provided in the leather cup frame, a first liquid flow hole is also provided at the edge of the first flow channel plate, and a second liquid flow hole is provided at a position opposite to the first flow channel plate. The liquid flow channel is connected with the first liquid flow hole, the second liquid flow hole and the liquid flow cavity.

9. A hydraulic suspension system, characterized in that: The hydraulic suspension system comprises a suspension frame, a main spring, a support arm and a hydraulic flow channel structure according to any one of claims 1 to 8; The main spring is connected to the suspension frame, the support arm is sleeved on the main spring, and the hydraulic flow channel structure is connected to a position on the support arm opposite to the main spring.

10. A vehicle, characterized in that: The vehicle includes the hydraulic suspension system of claim 9.

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