Vehicle hydraulic suspension

Abstract

The utility model relates to the technical field of vehicle parts, and discloses a vehicle hydraulic suspension which is used for being installed between a power assembly of a vehicle and a frame of the vehicle. The vehicle hydraulic suspension comprises a fixing seat, a rubber vibration reduction module and a hydraulic vibration reduction module, the fixing seat is used for being connected to a vehicle frame, and a containing cavity is formed in the fixing seat; the rubber vibration reduction module is arranged in the containing cavity and used for being connected with a power assembly, the hydraulic vibration reduction module comprises a mounting support and a flow channel assembly, and a first sealing cavity is formed; one end of the mounting support is connected to the rubber vibration reduction module in a sealing mode, a second sealing cavity with the volume changed along with deformation of the rubber vibration reduction module is formed, the flow channel assembly is connected to the interior of the mounting support, a flow channel groove is integrally formed in the flow channel assembly, and at least part of the flow channel groove is matched with the mounting support to form an inertia flow channel; the inertia flow channel enables the first sealing cavity to communicate with the second sealing cavity so that the damping medium can flow.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle components, and in particular to a vehicle hydraulic mount. Background Art

[0002] Vehicle performance is typically evaluated based on power, reliability, operational stability, and comfort. While ensuring vehicle safety and reliability, consumers are increasingly placing greater emphasis on ride comfort. Vehicle vibration and noise significantly impact ride comfort, so improving these factors is a crucial approach to improving ride comfort.

[0003] For a vehicle, the vehicle includes a frame, a powertrain and wheels. The frame provides a mounting base for the powertrain and wheels, and the powertrain is connected to the wheels through a transmission mechanism to drive the wheels to rotate.

[0004] The periodic and unbalanced nature of the powertrain's motion causes vibration. Furthermore, the unbalanced and periodic fluctuations in torque in the transmission mechanism between the powertrain and the wheels cause vibration in the transmission mechanism and the powertrain. These vibrations are transmitted to the vehicle frame, causing frame vibration and even noise. Reducing or isolating the transmission of powertrain vibration to the vehicle body is crucial for improving vehicle ride comfort.

[0005] In related technologies, a hydraulic mount can be installed between the powertrain and the vehicle frame to reduce or isolate the transmission of powertrain vibrations to the vehicle body. However, the hydraulic mounts provided by related technologies are large in size and do not meet the development requirements of lightweight and integrated vehicles. Utility Model Content

[0006] In view of this, the present application provides a vehicle hydraulic mount, which has the advantages of small size and light weight, and can meet the requirement of small space for installing the hydraulic mount between the powertrain and the vehicle frame.

[0007] In order to achieve the above-mentioned purpose, the technical solution of this application is implemented as follows:

[0008] An embodiment of the present application provides a vehicle hydraulic mount. The vehicle hydraulic mount is used to be installed between the vehicle's powertrain and the vehicle's frame. The vehicle hydraulic mount includes a fixing seat, a rubber vibration damping module, and a hydraulic vibration damping module. The fixing seat is used to connect to the vehicle frame, and a housing cavity is provided in the fixing seat. The rubber vibration damping module is provided in the housing cavity, and is used to connect to the powertrain and provide damping through elastic deformation. The hydraulic vibration damping module is provided in the housing cavity, and the hydraulic vibration damping module includes a mounting bracket and a flow channel assembly, and forms a first sealed cavity. One end of the mounting bracket is sealed to the rubber vibration damping module, so that a second sealed cavity is formed between the rubber vibration damping module and the hydraulic vibration damping module. The volume of the second sealed cavity changes with the deformation of the rubber vibration damping module. The flow channel assembly is connected to the interior of the mounting bracket, and the flow channel assembly is integrally formed with a flow channel groove. At least a portion of the flow channel groove cooperates with the mounting bracket to form an inertial flow channel, and the inertial flow channel connects the first sealed cavity with the second sealed cavity.

[0009] The vehicle hydraulic mount provided in an embodiment of the present application is disposed between the vehicle body and the powertrain. The vehicle hydraulic mount includes a mounting base and a hydraulic damping module. The mounting base is connected to the vehicle frame, and the hydraulic damping module is connected to the accommodating cavity of the mounting base. The hydraulic damping module includes a mounting bracket and a flow channel assembly. The mounting bracket forms a second sealed cavity on the side facing the powertrain, whose volume changes with the movement of the powertrain. The flow channel assembly is connected to the interior of the mounting bracket. Furthermore, a flow channel groove is integrally formed on the flow channel assembly, and at least a portion of the flow channel groove cooperates with the mounting bracket to form an inertial flow channel. The inertial flow channel is connected to the second sealed cavity and is used to accommodate a damping medium. Because the flow channel groove is integrally formed on the flow channel assembly, the integrated arrangement can enhance the structural strength of the flow channel assembly, reduce components, and facilitate assembly; at least a portion of the flow channel groove cooperates with the mounting bracket to form an inertial flow channel, which is easier to process than machining the inertial flow channel on the flow channel assembly. Moreover, the flow channel assembly cooperates with the mounting bracket to form the inertial flow channel, so that the mounting bracket forms part of the side wall of the inertial flow channel, thereby reducing the volume of the flow channel assembly, reducing space occupancy, and saving materials. Compared with the technical solutions in the related art in which the vehicle hydraulic mount occupies a large amount of space, the vehicle hydraulic mount of the embodiment of the present application has a flow channel groove integrally formed on the flow channel assembly, and at least a portion of the flow channel groove cooperates with the mounting bracket to form the inertial flow channel, which can reduce the volume of the flow channel assembly, reduce space occupancy, and save materials.

[0010] In a possible implementation of the present application, the inertial flow channel includes a first flow channel and a second flow channel, and the first flow channel is connected between the first sealed cavity and the second flow channel; the mounting bracket includes a first wall surrounding the flow channel assembly, and the flow channel assembly is provided with a first groove body toward the first wall surface, and the first groove body and the first wall surface are combined to form a first flow channel, and the flow channel assembly includes a flow channel body, and the first groove body is arranged around the circumference of the flow channel body.

[0011] In a possible implementation of the present application, the flow channel assembly includes a cover plate, and the two ends of the flow channel body along its axial direction correspond to the first sealed cavity and the second sealed cavity respectively; the cover plate is arranged between the flow channel body and the second sealed cavity, and the cover plate includes a second wall surface facing the flow channel body, and the flow channel body is provided with a second groove body facing the second wall surface, and the second groove body and the second wall surface enclose a first flow channel.

[0012] In a possible implementation of the present application, the extension axis of the inertial flow channel is a combination of one or more of a straight line, a curve, a wavy line, and a spiral line.

[0013] In a possible implementation of the present application, the mounting bracket is made of a plastic material, and the material density of the mounting bracket is lower than the material density of the fixing seat.

[0014] In a possible implementation of the present application, a bearing portion is provided on the side of the mounting bracket facing the rubber vibration damping module. The bearing portion protrudes radially of the mounting bracket, and the rubber vibration damping module abuts against the bearing portion at least along its deformation direction.

[0015] In a possible implementation of the present application, the hydraulic shock absorption module also includes a closing member and a sealing member, the closing member is sealingly connected to one end of the flow channel body away from the second sealing cavity to enclose the flow channel body to form a first sealing cavity; the sealing member is connected between the closing member, the mounting bracket and the fixing seat to seal the first sealing cavity; wherein, the sealing member is at least partially located in the recess of the mounting bracket and is clamped with the mounting bracket, and the sealing member is interference fit with the fixing seat.

[0016] In a possible implementation of the present application, a limiting portion is provided on one of the mounting bracket and the seal, and an abutting portion is provided on the other; the limiting portion forms an accommodating space so that when the abutting portion abuts against the limiting portion, at least part of the abutting portion is located within the accommodating space.

[0017] In a possible implementation of the present application, the vehicle hydraulic mount further includes a guide structure, which is disposed between the seal and the mounting bracket and is used to guide the seal to move relative to the mounting bracket.

[0018] In a possible implementation of the present application, the vehicle hydraulic mount further includes a limiting structure, which is disposed between the mounting bracket and the fixing seat, and which limits the relative displacement of the mounting bracket and the fixing seat in at least two different directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the installation of the vehicle hydraulic mount on the vehicle frame provided in this application;

[0020] Figure 2 A schematic diagram of the overall structure of the vehicle hydraulic mount provided in this application;

[0021] Figure 3 A schematic cross-sectional view of the vehicle hydraulic mount provided in this application along the axial direction of the accommodation cavity;

[0022] Figure 4 An exploded schematic diagram of the flow channel assembly of the vehicle hydraulic mount provided in this application;

[0023] Figure 5 for Figure 3 An enlarged schematic diagram of point A in FIG.

[0024] Figure 6 A schematic cross-sectional view of the vehicle hydraulic mount provided in this application, perpendicular to the axial direction of the accommodation cavity;

[0025] Figure 7 for Figure 6 An enlarged schematic diagram of point B in FIG.

[0026] Figure 8 for Figure 6 An enlarged schematic diagram of point C in FIG.

[0027] Figure 9 This is a schematic diagram of the overall structure of the rubber vibration damping module and the hydraulic vibration damping module of the vehicle hydraulic mount provided in this application;

[0028] Figure 10 Based Figure 9 An enlarged schematic diagram of point D in FIG.

[0029] Figure 11 Schematic diagram of the installation space for installing the vehicle hydraulic mount on the frame.

[0030] Reference numerals:

[0031] 010-frame; 011-longitudinal beam; 012-connecting beam; 013-mounting seat; 020-powertrain; 100-fixing seat; 110-accommodating chamber; 120-support platform; 130-connecting arm; 200-hydraulic vibration damping module; 210-mounting bracket; 212-limiting portion; 213-accommodating space; 214-bearing portion; 215-positioning protrusion; 220-flow channel body; 221-baffle; 222-first structural portion; 223-second structural portion; 224-bottom plate; 230-flow channel groove; 231-first trough body; 232-second trough body; 240-enclosing surface; 241- First wall; 242-second wall; 250-cover plate; 251-guide part; 260-closure; 270-sealing part; 271-abutment part; 280-guide structure; 281-guide groove; 282-guide protrusion; 290-decoupling plate; 300-rubber vibration damping module; 310-mounting hole; 320-support frame; 330-buffer table; 400-connecting part; 500-limiting structure; 510-mounting groove; 520-mounting protrusion; 521-raised rib; M1-first sealing cavity; M2-second sealing cavity; L-inertial flow channel; L1-first flow channel; L2-second flow channel. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0033] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more.

[0034] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0035] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0036] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0037] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0038] The present application provides a vehicle hydraulic mount that can be used in a vehicle to reduce vibration. The vehicle can include large cars, small cars, special-purpose vehicles, and the like. For example, based on vehicle type, the vehicle in this application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other vehicle types.

[0039] Reference Figure 1 A vehicle generally includes a vehicle frame 010 and a powertrain 020 . The powertrain 020 is mounted on the vehicle frame 010 and is used to apply power to the wheels of the vehicle to drive the wheels to rotate.

[0040] On this basis, a vehicle hydraulic mount can be installed between the powertrain 020 and the frame 010 to reduce or isolate vibrations transmitted from the powertrain 020 and road excitations through the frame 010 to the vehicle. Furthermore, the vehicle hydraulic mount can support the powertrain 020 and limit its movement, thereby meeting the stiffness and damping requirements under various operating conditions, including low-frequency and high-frequency conditions, and thus improving vehicle ride comfort.

[0041] With the development of lightweight, integrated, and high-NVH (Noise, Vibration, and Harshness) vehicle performance, there is a need to reduce vehicle manufacturing costs, save space, increase vehicle range, and reduce energy consumption. However, the existing hydraulic mounts are bulky and occupy a lot of space, which does not meet the requirements of lightweight and integrated vehicle development.

[0042] Therefore, the vehicle hydraulic mount provided in the embodiment of the present application is used to be installed between the vehicle powertrain 020 and the vehicle frame 010. The vehicle hydraulic mount has the advantages of being small in size and light in weight, and can meet the installation space requirements for the vehicle hydraulic mount installed between the powertrain 020 and the vehicle frame 010.

[0043] Reference Figure 1 、 Figure 2 and Figure 3 The vehicle hydraulic mount includes a fixing seat 100, a rubber vibration damping module 300 and a hydraulic vibration damping module 200. The fixing seat 100 is used to be connected to the vehicle frame 010, and a receiving cavity 110 is provided in the fixing seat 100; the rubber vibration damping module 300 is provided in the receiving cavity 110, and the rubber vibration damping module 300 is used to connect to the powertrain 020 and provide damping through elastic deformation; the hydraulic vibration damping module 200 is provided in the receiving cavity 110, and the hydraulic vibration damping module 200 includes a mounting bracket 210 and a flow channel assembly (including One end of the mounting bracket 210 is sealed and connected to the rubber vibration damping module 300, and forms a second sealed cavity M2 whose volume changes when the rubber vibration damping module 300 is deformed. The flow channel assembly is connected to the interior of the mounting bracket 210, and the flow channel assembly is integrally formed with a flow channel groove 230. At least a portion of the flow channel groove 230 cooperates with the mounting bracket 210 to form an inertial flow channel L. The inertial flow channel L connects the first sealed cavity M1 with the second sealed cavity M2 to damp the flow of the medium.

[0044] In the embodiment of the present application, the mounting base 100 is connected to the vehicle frame 010 and provides a mounting base for the hydraulic vibration damping module 200 and the like. The mounting base 100 may have various structural forms. In one example, the mounting base 100 is configured as a frame structure; in another example, the mounting base 100 is configured as a box structure.

[0045] In the embodiment of the present application, the fixing seat 100 and the frame 010 may be connected in a variety of ways, such as welding, clamping, bonding, riveting, etc. In one example, the fixing seat 100 and the frame 010 are connected by fasteners, referring to Figure 1 and Figure 2 A support platform 120 is provided on the fixing seat 100 , and a connecting hole is provided on the support platform 120 . The fastener passes through the connecting hole to fix the fixing seat 100 to the vehicle frame 010 .

[0046] In the embodiment of the present application, a receiving cavity 110 is provided within the fixing base 100. The receiving cavity 110 may have various structural forms. In one example, a hollow structure is provided in the middle of the frame-type fixing base 100, and this hollow structure forms the receiving cavity 110. In another example, the receiving cavity 110 is provided in the middle of the box-type fixing base 100, with the opening of the receiving cavity 110 located on one side of the box-type fixing base 100. Alternatively, the receiving cavity 110 is a blind hole opened in the box-type fixing base 100.

[0047] In the embodiment of the present application, the volume and shape of the accommodating chamber 110 may be set in a variety of ways. The volume of the accommodating chamber 110 may be adaptively set according to the volume of the hydraulic vibration damping module 200 so that the hydraulic vibration damping module 200 can be installed in the accommodating chamber 110. Figure 2 In some possible embodiments of the present application, the cross-sectional shape of the accommodating cavity 110 is set to be approximately rectangular.

[0048] Reference Figure 2 、 Figure 3 and Figure 6 The rubber vibration damping module 300 is disposed between the mounting bracket 210 and the power assembly 020 to enclose the mounting bracket 210 to form a second sealed cavity M2. The rubber vibration damping module 300 is configured to deform to provide damping.

[0049] In this embodiment of the present application, a rubber vibration damping module 300 is installed within the accommodating cavity 110 and is used to connect to the vehicle's powertrain 020. The mounting bracket 210 is sealedly connected to the rubber vibration damping module 300. This means that vibrations from the powertrain 020 are first buffered by the rubber vibration damping module 300 and then by the hydraulic vibration damping module 200, forming a two-stage buffering structure. The rubber vibration damping module 300 and the hydraulic vibration damping module 200 work together to create an effective buffer between the powertrain 020 and the vehicle frame 010, reducing vibrations from the powertrain 020 and road excitations that are transmitted to the powertrain 020 through the vehicle frame 010.

[0050] In the embodiment of the present application, the connection between the rubber vibration damping module 300 and the power assembly 020 can be welding, clamping, bonding, fastener connection, etc. Figure 3 、 Figure 6 and Figure 9 In a possible embodiment of the present application, the rubber vibration damping module 300 is provided with a mounting hole 310, and the vehicle hydraulic suspension further includes a connector 400, one end of the connector 400 is fixedly connected to the powertrain 020, and the other end of the connector 400 is inserted into the mounting hole 310, thereby realizing the connection and vibration transmission between the rubber vibration damping module 300 and the mounting hole 310.

[0051] In this embodiment of the present application, the primary material of rubber vibration damping module 300 is rubber. Rubber is a polymer material with excellent elasticity and internal damping. When subjected to external forces, the strain generated by rubber material lags relative to the stress due to internal friction between its molecules. Thus, the mechanical energy generated by the vibration of powertrain 020 is converted into heat and dissipated into the external environment through the action of rubber vibration damping module 300. Using rubber as a medium for vibration transmission effectively isolates vibrations.

[0052] In the technical solution of the embodiments of this application, by combining a hydraulic damping module 200 with a rubber damping module 300, the stiffness and damping of the vehicle hydraulic mount change with changes in vibration frequency and excitation amplitude. This allows the vehicle hydraulic mount to exhibit low damping and low stiffness at low amplitudes, and high damping and high stiffness at high amplitudes. For example, the vehicle hydraulic mount can provide low damping and dynamic stiffness at idle speeds, and high damping and high dynamic stiffness under high road excitation conditions, thereby providing excellent vibration isolation performance.

[0053] In an embodiment of the present application, the hydraulic vibration damping module 200 is installed in the accommodating cavity 110. The hydraulic vibration damping module 200 buffers the vibration between the powertrain 020 and the frame 010 through the damping effect of the damping medium. The type of damping medium can be selected according to the working conditions. For example, the damping medium can be silicone oil or ethylene glycol.

[0054] On this basis, a first sealed cavity M1 is formed between the flow channel body 220 and the closure member 260. It is understood that the aforementioned inertial flow channel L connects the second sealed cavity M2 with the first sealed cavity M1. When the second sealed cavity M2, the first sealed cavity M1, and the flow channel body 220 are filled with damping medium, the volume of the second sealed cavity M2 changes as the external force applied to the rubber vibration damping module 300 by the powertrain 020 changes, thereby driving the damping medium to flow between the second sealed cavity M2 and the first sealed cavity M1 through the inertial flow channel L. The damping medium generates damping when flowing within the inertial flow channel L, and the damping medium can be used to attenuate the vibration of the powertrain 020.

[0055] Specifically, when the rubber vibration damping module 300 elastically deforms toward the mounting bracket 210, the volume of the second sealed cavity M2 is compressed, and the damping medium inside it flows toward the inertial flow channel L, and the damping medium in the inertial flow channel L flows toward the first sealed cavity M1; conversely, when the rubber vibration damping module 300 elastically deforms away from the mounting bracket 210, the volume of the second sealed cavity M2 expands, and the damping medium in the inertial flow channel L flows toward the second sealed cavity M2, and the damping medium inside the first sealed cavity M1 flows toward the inertial flow channel L.

[0056] In the embodiment of the present application, the hydraulic vibration damping module 200 includes a mounting bracket 210 and a flow channel assembly (including a flow channel body 220). The mounting bracket 210 provides a mounting base for the flow channel assembly and can have various structural forms, such as a block structure, a columnar structure, a spherical structure, and a frame structure. For example, the mounting bracket 210 is a frame structure, and a through-hole mounting cavity is provided within the mounting bracket 210. The mounting cavity is approximately cylindrical, and the flow channel assembly is disposed within the mounting cavity.

[0057] In the embodiment of the present application, the flow channel groove 230 refers to a groove structure provided in the flow channel assembly (including the flow channel body 220). The groove structure refers to a structure with openings provided on the peripheral side to connect to other spaces. The two ends of the groove structure along its extension direction can be closed or connected to other spaces. For example, one end of the flow channel groove 230 is connected to the second sealed cavity M2, and an opening is provided on the peripheral side toward the mounting bracket 210. The mounting bracket 210 shields the opening to form an inertial flow channel L with a closed peripheral side. That is, the end of the inertial flow channel L is connected to other spaces (such as the second sealed cavity M2), while the peripheral side is closed so that the damping medium can flow from one end of the inertial flow channel L to the other end.

[0058] It is understandable that when the flow channel groove 230 forms the inertial flow channel L, the peripheral side of the flow channel groove 230 needs to be closed, so the flow channel component is correspondingly provided with a mating surface 240, that is, the flow channel groove 230 and the mating surface 240 enclose to form the inertial flow channel L.

[0059] In the embodiment of the present application, the flow channel assembly (including the flow channel body 220) is installed in the mounting cavity of the mounting bracket 210. The flow channel assembly is integrally formed with a flow channel groove 230. At least a portion of the flow channel groove 230 cooperates with the mounting bracket 210 to form an inertial flow channel L. The integrally formed flow channel groove 230 means that the flow channel groove 230 is formed on a single component, rather than being formed by splicing multiple components. At least a portion of the flow channel groove 230 cooperates with the mounting bracket 210. Specifically, the flow channel groove 230 and the mounting bracket 210 are relatively engaged to form an inertial flow channel L with openings at both ends. A damping medium flows in the inertial flow channel L. The viscous force of the damping medium provides damping to cushion the relative movement between the powertrain 020 and the frame 010.

[0060] In the technical solution of the embodiment of the present application, a vehicle hydraulic suspension is arranged between the vehicle frame 010 and the powertrain 020, and the vehicle hydraulic suspension includes a fixing seat 100 and a hydraulic shock absorber module 200. The fixing seat 100 is used to be connected to the frame 010, and the hydraulic shock absorber module 200 is connected to the accommodating cavity 110 of the fixing seat 100. The hydraulic shock absorber module 200 includes a mounting bracket 210 and a flow channel assembly (including a flow channel body 220). The mounting bracket 210 forms a second sealed cavity M2 on the side facing the powertrain 020, and the volume changes with the movement of the powertrain 020. The flow channel assembly is connected to the inside of the mounting bracket 210.

[0061] On this basis, a flow channel groove 230 is integrally formed on the flow channel assembly, and at least a portion of the flow channel groove 230 cooperates with the mounting bracket 210 to form an inertial flow channel L. The inertial flow channel L is connected to the second sealed cavity M2 and is used to accommodate the damping medium. Since the flow channel groove 230 is integrally formed on the flow channel assembly, the integrated arrangement can enhance the structural strength of the flow channel assembly, reduce components, and facilitate assembly. Compared with machining the inertial flow channel L on the flow channel assembly, at least a portion of the flow channel groove 230 cooperates with the mounting bracket 210 to form the inertial flow channel L. In addition, the flow channel assembly cooperates with the mounting bracket 210 to form the inertial flow channel L, so that the mounting bracket 210 forms part of the side wall of the inertial flow channel L. This can reduce the volume of the flow channel assembly, reduce space occupation, and save materials.

[0062] Compared with the technical solutions in related technologies in which the vehicle hydraulic suspension occupies more space, the vehicle hydraulic suspension in the embodiment of the present application has a flow channel groove 230 integrally formed on the flow channel assembly, and at least a portion of the flow channel groove 230 cooperates with the mounting bracket 210 to form an inertial flow channel L, which can reduce the volume of the flow channel assembly, reduce space occupancy, and save materials.

[0063] Reference Figure 3 and Figure 4 In some possible embodiments of the present application, the inertial flow channel L includes a first flow channel L1 and a second flow channel L2, and the first flow channel L1 is connected between the first sealed cavity M1 and the second flow channel L2; the mounting bracket 210 includes a first wall 241 surrounding the flow channel assembly, and the flow channel assembly is provided with a first groove body 231 toward the first wall surface 241, and the first groove body 231 and the first wall surface 241 are enclosed to form the first flow channel L1, and the first groove body 231 is arranged around the circumference of the flow channel body 220.

[0064] In the embodiments of the present application, the inertial flow channel L has a variety of possible structural forms. The radial cross-section of the inertial flow channel L can be a regular shape such as a circle, an ellipse, a rectangle, a square, a triangle, a rhombus, a regular hexagon, a trapezoid, or an irregular shape. The extension axis of the inertial flow channel L can be a straight line or a curve, such as an arc curve, a spiral line, etc., or a combination of straight lines or curves. The embodiments of the present application do not limit this.

[0065] For example, the inertial flow channel L includes a first flow channel L1 and a second flow channel L2. The structures of the first flow channel L1 and the second flow channel L2 can be identical or different. The first flow channel L1 and the second flow channel L2 can be arranged in different planes along the axial direction of the mounting bracket 210 to form a double-layer flow channel structure. The double-layer flow channel structure can provide a larger internal surface area of ​​the inertial flow channel L within a smaller space. In other words, it increases the contact area between the inertial flow channel L and the damping medium, providing greater damping, thereby enhancing the vibration reduction effect of the hydraulic vibration reduction module 200. It is understood that the inertial flow channel L also includes a flow channel structure that connects the first flow channel L1 and the second flow channel L2.

[0066] In an embodiment of the present application, the first flow channel L1 and the second flow channel L2 have multiple possible structural forms. In one example, the first flow channel L1 and the second flow channel L2 are both arranged in a ring shape; in another example, the first flow channel L1 and the second flow channel L2 are both arranged in a spiral shape; in another example, one of the first flow channel L1 and the second flow channel L2 is arranged in a ring shape, and the other is arranged in a spiral shape.

[0067] In one example, the first groove body 231 forming the first flow channel L1 is configured as a substantially annular structure. This allows the length of the first groove body 231 to be increased when the axial space of the mounting bracket 210 is limited, thereby better utilizing the damping effect of the first groove body 231. Accordingly, while maintaining the effective length of the first groove body 231, the annular structure of the first groove body 231 can also effectively reduce the axial dimension of the flow channel assembly (including the flow channel body 220), further reducing the volume and mass of the vehicle hydraulic mount.

[0068] In the embodiment of the present application, the hydraulic vibration damping module 200 may further include an injection hole connected to the inertial flow channel L. The injection hole may be provided on the mounting bracket 210 or on the flow channel assembly. Furthermore, the injection hole may be connected to the second flow channel L2 or the first flow channel L1. For example, the injection hole is provided on the mounting bracket 210 and connected to the first flow channel L1.

[0069] The technical solution of the embodiment of the present application forms a double-layered flow channel structure by providing an annular first flow channel L1 and a second flow channel L2 on the flow channel assembly (including the flow channel body 220). This provides the flow channel assembly with the advantages of an integrated and compact structure, thereby reducing the size of the flow channel assembly. In other words, the vehicle hydraulic mount provided by the embodiment of the present application has the advantages of being compact and lightweight, which better meets the development requirements of lightweight and integrated vehicles.

[0070] Reference Figure 3 、 Figure 4 and Figure 6 In some possible embodiments of the present application, the flow channel assembly includes a flow channel body 220 and a cover plate 250, and the two ends of the flow channel body 220 along its axial direction correspond to the first sealed cavity M1 and the second sealed cavity M2 respectively; the cover plate 250 is arranged between the flow channel body 220 and the second sealed cavity M2, and the cover plate 250 includes a second wall surface 242 facing the flow channel body 220, and the flow channel body 220 is provided with a second groove body 232 facing the second wall surface 242, and the second groove body 232 and the second wall surface 242 enclose a second flow channel L2.

[0071] In the embodiment of the present application, the flow channel assembly can be an integrally formed structure or can be assembled from multiple components. For example, the flow channel assembly includes a cover plate 240 and a flow channel body 220. The flow channel body 220 is an integrally formed structure, that is, the flow channel body 220 is manufactured by an integral molding method and is a single-piece component. The flow channel body 220 includes a first end and a second end that are oppositely disposed along its axial direction.

[0072] In the embodiment of the present application, a first groove 231 is formed around the flow channel body 220. The first groove 231 is connected to the second groove 232. The first groove 231 is enclosed by a first wall 241 of the mounting bracket 210. The first wall 241 and the inner wall of the first groove 231 together form a first flow channel L1. It will be understood that a flow channel outlet is provided at the first end of the flow channel body 220. The flow channel inlet, the second groove 232, the first groove 231, and the flow channel outlet are sequentially connected and cooperate with the mounting bracket 210 to form an inertial flow channel L. The damping medium flows within the inertial flow channel L, providing damping through viscous force.

[0073] In the embodiment of the present application, the opening of the first groove 231 is located on the periphery of the flow channel body 220, that is, the opening of the first groove 231 faces the inner wall of the mounting bracket 210. The flow channel body 220 is adapted to the outline dimensions of the mounting cavity, ensuring a seal between the first groove 231 and the mounting bracket 210, thereby forming a relatively sealed first flow channel L1 between the first groove 231 and the mounting bracket 210.

[0074] In the embodiment of the present application, the cover plate 240 is disposed on the second end of the flow channel body 220 to seal the circumference of the second trough body 232, such that the second wall surface 242 of the cover plate 240 and the inner wall of the second trough body 232 enclose the second flow channel L2. It will be appreciated that the cover plate 240 is provided with a flow channel inlet for connecting the second trough body 232 with the second sealed cavity M2.

[0075] In the embodiment of the present application, the cover plate 240 is a plate-like structure, and its shape can be circular, oval, square, triangular, trapezoidal, etc. It is understood that the cover plate 240 is adapted to the second end structure of the flow channel body 220. The cover plate 240 can be placed on the flow channel body 220 and adapted to the second groove body 232 to form the second flow channel L2. The cover plate 240 and the flow channel body 220 can be connected by welding, clamping, bonding, threading, fasteners, etc., and the connection structure between the cover plate 240 and the flow channel body 220 is sealed.

[0076] In the embodiment of the present application, the second end of the flow channel body 220 is close to the second sealed cavity M2, and a second groove body 232 is opened at the second end of the flow channel body 220. The second groove body 232 is an annular structure with two ends not connected. The second groove body 232 and the second wall surface 242 are enclosed to form a second flow channel L2, and one end of the second flow channel L2 along its extension direction is connected to the second sealed cavity M2, and the other end is connected to the first flow channel L1.

[0077] Reference Figure 3 、 Figure 4 and Figure 6 In some possible embodiments of the present application, the flow channel body 220 includes a first structural portion 222, a second structural portion 223, and a bottom plate 224. The first structural portion 222 is located at the second end of the flow channel body 220, and the bottom plate 224 is located at the first end of the flow channel body 220. The first structural portion 222 is integrally formed with the bottom plate 224 via the second structural portion 223. The second groove 232 is disposed on the side of the first structural portion 222 facing the second sealed cavity M2. A first groove 231 is formed between the first structural portion 222, the second structural portion 223, and the bottom plate 224, opening along the circumference of the flow channel body 220. The first groove 231 and the mounting bracket 210 enclose and form the first flow channel L1. Specifically, the radial dimension of the second structural portion 223 is smaller than the radial dimensions of the bottom plate 224 and the first structural portion 222, so that the second structural portion 223 is recessed inward relative to the first structural portion 222 and the bottom plate 224. This structure forms the first groove 231 on the flow channel body 220.

[0078] Reference Figure 4In some possible embodiments of the present application, the cover plate 240 is further provided with a guide portion 241 corresponding to the flow channel inlet. The guide portion 241 is used to guide the damping medium to the second trough 232. The guide portion 241 can be a guide plate provided at the flow channel inlet of the cover plate 240, and the guide plate is inclined toward the flow direction of the damping medium. By providing the guide portion 241 on the cover plate 240 to guide the damping medium, the resistance to the damping medium flowing into the second trough 232 can be reduced, and the vortex generated by the damping medium near the flow channel inlet can be reduced.

[0079] Reference Figure 4 In some possible embodiments of the present application, the second trough body 232 includes an inlet end connected to the flow channel inlet, and an outlet end connected to the first trough body 231. A baffle 221 is provided between the inlet end and the outlet end of the second trough body 232. The baffle 221 is used to isolate the inlet end and the outlet end of the second trough body 232.

[0080] In the technical solution of the embodiment of the present application, baffles 221 are provided at the inlet and outlet of the second trough 232. The baffles 221 can isolate the inlet and outlet of the second trough 232. Thus, after the damping medium enters the second trough 232 through the flow channel inlet, it can flow from the inlet of the second trough 232 to the outlet of the second trough 232, and then flow into the first trough 231.

[0081] It can be understood that when the second trough body 232 and the first trough body 231 form a double-layer flow channel, a third flow channel is also connected between the two. The third flow channel can extend along the axial direction of the flow channel body 220, or the third flow channel extends in a spiral shape. The two ends of the third flow channel are respectively connected to the second trough body 232 and the first trough body 231.

[0082] Reference Figure 3 and Figure 6 In some possible embodiments of the present application, the hydraulic vibration damping module 200 further includes a decoupling plate 290. Specifically, the decoupling plate 290 is installed between the cover plate 240 and the flow channel body 220. A through hole is provided on the cover plate 240 corresponding to the decoupling plate 290, and a through hole is also provided on the flow channel body 220 corresponding to the decoupling plate 290.

[0083] The technical solution of the embodiment of the present application is to set a decoupling plate 290. Under low-frequency and large-amplitude conditions, the decoupling plate 290 is pressed against the flow channel body 220, so that the damping medium flows into the first sealed cavity M1 through the inertial flow channel L. In this process, the damping of the hydraulic vibration reduction module 200 is increased; correspondingly, under high-frequency and small-amplitude conditions, the fit between the decoupling plate 290 and the flow channel body 220 is relatively loose, and the flow rate of the damping medium through the inertial channel is limited by the deformation or floating of the decoupling plate 290. At this time, the damping of the inertial flow channel L is relatively small.

[0084] It should be noted that in some embodiments, the mounting bracket 131 is provided with an injection hole, which is connected to the first flow channel L1. The damping medium can be injected into the inertial flow channel L through the injection hole. The mounting bracket 131 also includes a sealing member for blocking the injection hole. The sealing member can be a plunger, a ball plunger, etc., and illustratively, a steel ball. The side of the sealing member facing the first tank 231 can serve as part of the first wall 241.

[0085] It should be noted that in some possible embodiments of the present application, the mounting bracket 210 is made of a plastic material, and the material density of the mounting bracket 210 is less than or equal to the material density of the fixing base 100. It is understandable that since the material density of the mounting bracket 210 is relatively low, the smaller material density can reduce the weight of the mounting bracket 210 while keeping the volume of the mounting bracket 210 unchanged, thereby facilitating the lightweighting of the vehicle hydraulic suspension. For example, the fixing base 100 is mainly made of metal material, and the mounting bracket 210 is mainly made of plastic material. By configuring the mounting bracket 210 as a plastic part, the purpose of lightweighting the vehicle hydraulic suspension can be achieved. Alternatively, the fixing base 100 and the mounting bracket 210 are both made of plastic material, and the material density of the two is equal. In addition, the material of the flow channel body 220 and the sealing member 270 can also be set to plastic.

[0086] In the embodiment of the present application, there is no limitation on the type of plastic material used for the mounting bracket 210, the flow channel body 220, and the seal 270. For example, the mounting bracket 210, the flow channel body 220, and the seal 270 can be made of the same or different materials. For example, the mounting bracket 210, the flow channel body 220, or the seal 270 in the embodiment of the present application can be made of polyamide plastic.

[0087] In the technical solution of the embodiment of the present application, by setting the mounting bracket 210, the flow channel body 220 and the seal 270 to be plastic, the weight of the vehicle hydraulic suspension provided in the embodiment of the present application can be reduced to a large extent, thereby achieving the purpose of lightweight design of the vehicle hydraulic suspension.

[0088] Reference Figure 3 and Figure 6 In some embodiments of the present application, the rubber vibration damping module 300 can be set to a side close to the hydraulic vibration damping module 200 as an inverted bowl-shaped structure, so that the edge of the hydraulic vibration damping module 200 is sealed and connected to the mounting bracket 210.

[0089] In the embodiment of the present application, the connection method between the rubber vibration damping module 300 and the mounting bracket 210 can be selected based on the material of the mounting bracket 210. For example, a sealing connection between the rubber vibration damping module 300 and the mounting bracket 210 can be achieved through bonding or vulcanization. The vulcanization connection process can form the rubber vibration damping module 300 and the mounting bracket 210 into a single unit, thereby improving the connection strength between the rubber vibration damping module 300 and the mounting bracket 210 and ensuring the sealing between the rubber vibration damping module 300 and the mounting bracket 210.

[0090] Reference Figure 3 and Figure 6 In some possible embodiments of the present application, the rubber vibration damping module 300 is embedded with a support frame 320. The support frame 320 can be made of a material with higher rigidity, such as a metal material. The support frame 320 can compensate for the insufficient rigidity of the rubber material and improve the internal stress distribution of the rubber vibration damping module 300 to avoid stress concentration. In order to adapt to the situation where road conditions are gradually improved and vehicles are lightweight, and to adapt to the situation where most vehicles are in multi-working conditions and wide-band operation, for example, under low-frequency road excitation (for example, going over bumps or speed bumps), the rubber vibration damping module 300 and the hydraulic vibration damping module 200 work together to provide large damping to limit vehicle body shaking and improve vehicle driving performance.

[0091] Reference Figure 9 In some possible embodiments of the present application, a positioning protrusion 215 is further provided on the mounting bracket 210, and the positioning protrusion 215 abuts against the fixing seat 100, and is used to position the rubber vibration damping module 300 and the hydraulic vibration damping module 200 in the accommodating cavity 110 along the radial direction of the flow channel body 220.

[0092] In the technical solution of the embodiment of the present application, during the installation of the rubber vibration damping module 300 and the hydraulic vibration damping module 200 into the accommodating cavity 110, when the positioning protrusion 215 abuts against the fixing seat 100, the positioning protrusion 215 is used to position the rubber vibration damping module 300 and the hydraulic vibration damping module 200 within the accommodating cavity 110 along the radial direction of the flow channel body 220, thereby facilitating the assembly of the vehicle hydraulic mount.

[0093] Reference Figure 3 and Figure 5 In some possible embodiments of the present application, a bearing portion 214 is provided on the side of the mounting bracket 210 facing the rubber vibration damping module 300. The bearing portion 214 protrudes radially along the mounting bracket 210, and the rubber vibration damping module 300 abuts against the bearing portion 214 at least along its deformation direction.

[0094] In this embodiment of the present application, the mounting bracket 210 includes a radially protruding support portion 214. The rubber vibration damping module 300 is formed with a buffer platform 330 corresponding to the support portion 214. The buffer platform 330 and the support portion 214 form a support to limit the relative displacement of the rubber vibration damping module 300 and the mounting bracket 210. In other words, the support portion 214 effectively limits the deformation of the rubber vibration damping module 300.

[0095] On this basis, the bearing portion 214 is used to support the rubber vibration damping module 300. The rubber vibration damping module 300 transmits vibration to the mounting bracket 210 through the bearing portion 214, and finally transmits it to the mounting seat 013, so that the mounting bracket 210 can play a large load supporting role in the vertical direction of the vehicle.

[0096] In the embodiment of the present application, when the rubber vibration damping module 300 is greatly deformed, the connecting member 400 can abut against the buffer platform 330, and the bearing portion 214 is used to limit the movement of the connecting member 400, thereby limiting the movement of the connecting member 400 and the powertrain 020.

[0097] The technical solution of the embodiment of the present application is to provide a bearing portion 214 on the mounting bracket 210. When the rubber vibration damping module 300 is subjected to force and elastically deforms toward the mounting bracket 210, the bearing portion 214 provides effective support for the rubber vibration damping module 300, and a buffer platform 330 is formed on the bearing portion 214 using the rubber vibration damping module 300, which can provide a limit for the movement of the connecting member 400 and the powertrain 020, and provide additional buffering for the movement of the connecting member 400 and the powertrain 020.

[0098] Reference Figure 3 、 Figure 4 and Figure 6 In some possible embodiments of the present application, the hydraulic vibration damping module 200 further includes a closure 260 and a sealing member 270. The closure 260 is sealingly connected to the first end of the flow channel body 220 away from the second sealing cavity to enclose the flow channel body to form a first sealing cavity M1; the sealing member 270 is connected between the closure 260 and the mounting bracket 210 to seal the first sealing cavity M1; wherein, the sealing member 270 is at least partially located in the recess of the mounting bracket 210 and is clamped with the mounting bracket 210, and the sealing member 270 is interference fit with the fixing seat 100.

[0099] In the embodiment of the present application, the hydraulic vibration reduction module 200 includes a sealing member 260, which is connected to the end of the mounting bracket 210 away from the second sealed cavity M2. The structure of the sealing member 260 is adapted to the mounting bracket 210, as shown in FIG. Figure 3 and Figure 6In a possible embodiment of the present application, a cylindrical mounting cavity is formed inside the mounting bracket 210, and the radial cross-sections of the flow channel body 220 and the closure member 260 are also set to be circular, so as to be installed in the cylindrical mounting cavity of the mounting bracket 210, and it is beneficial for the flow channel body 220, the closure member 260 to fit with the inner wall of the mounting bracket 210 to form an effective sealing structure.

[0100] In the embodiment of the present application, the sealing member 270 is fixedly connected to the end of the mounting bracket 210 away from the second sealed cavity M2, and the closing member 260 is sandwiched between the sealing member 270 and the flow channel body 220. The sealing member 270 is used to maintain a seal between the closing member 260 and the flow channel body 220. It should be noted that the sealing member 270 can be made of metal or plastic, and this embodiment of the present application is not limited to this.

[0101] In an embodiment of the present application, when the rubber vibration damping module 300 and the hydraulic vibration damping module 200 are installed in the accommodating cavity 110, the seal 270 can form an interference fit with the fixing seat 100, that is, the seal 270 is tightly abutted against the bottom wall of the accommodating cavity 110, so that the fixing seat 100 squeezes the closing member 260 through the seal 270, which can further improve the sealing performance between the closing member 260, the flow channel body 220 and the mounting bracket 210.

[0102] In the embodiment of the present application, the closing member 260 can be any structural member with elastic deformation capability. For example, the closing member 260 is a rubber sheet or a metal sheet. Figure 3 and Figure 6 In a possible embodiment of the present application, the sealing member 260 is a rubber sheet with a bowl-shaped structure.

[0103] It should be noted that the first sealed cavity M1 formed by the hydraulic vibration damping module 200 has multiple possible forms. When the flow channel assembly includes a flow channel body 220 and a closure member 260, the first sealed cavity M1 is enclosed by the flow channel body 220 and the closure member 260; when the flow channel assembly also includes a decoupling plate 290, the first sealed cavity M1 is enclosed by the flow channel body 220, the closure member 260 and the decoupling plate 290.

[0104] In the technical solution of the embodiment of the present application, by providing a seal 270 and fitting it within the mounting bracket 210, the seal 270 can be used to apply pressure to the closure member 260, thereby maintaining a seal between the closure member 260, the flow channel body 220, and the mounting bracket 210. Furthermore, by fitting the seal 270 within the mounting bracket 210, an in-line arrangement can be formed between the seal 270 and the mounting bracket 210. This can reduce the space occupied by the hydraulic vibration damping module 200 without sacrificing the effectiveness of the hydraulic vibration damping module 200, thereby further reducing the size and weight of the vehicle hydraulic vibration damping system provided by the embodiment of the present application.

[0105] Reference Figure 8 、 Figure 9 and Figure 10 In some possible embodiments of the present application, a limiting portion 212 is provided on one of the mounting bracket 210 and the sealing member 270, and an abutting portion 271 is provided on the other; the limiting portion 212 forms an accommodating space 213, so that when the abutting portion 271 abuts against the limiting portion 212, at least a portion of the abutting portion 271 is located in the accommodating space 213.

[0106] In an embodiment of the present application, the seal 270 is arranged in the mounting bracket 210, the outer wall of the seal 270 is provided with an abutment portion 271, and the mounting bracket 210 is provided with a limiting portion 212 at a position corresponding to the abutment portion 271. The abutment portion 271 can be snapped into the limiting portion 212 to keep the seal 270 and the mounting bracket 210 relatively fixed.

[0107] In the embodiment of the present application, the connection between the abutting portion 271 and the limiting portion 212 can be a snap-on connection, for example, the abutting portion 271 has an elastically arranged hook, which elastically deforms when extending into the limiting portion 212, and restores its shape by elastic force after the hook is in place, so that the hook is tightly clamped to the limiting portion 212. The connection between the abutting portion 271 and the limiting portion 212 can also be an interference fit, that is, the outer contour of the abutting portion 271 is slightly larger than the inner contour of the limiting portion 212, and when the abutting portion 271 extends into the limiting portion 212, the two are interference fit, and the connection is achieved by friction.

[0108] It is understandable that the sealing member 270 is sleeved in the mounting bracket 210, which is equivalent to the sealing member 270 being an inward buckle structure, that is, the sealing member 270 is mounted in the mounting bracket 210 in an inverted manner. In this way, the size of the hydraulic vibration damping module 200 can be effectively reduced.

[0109] In the embodiment of the present application, the number of the abutting portions 271 can be multiple, and the multiple abutting portions 271 are spaced apart and arranged along the outer wall of the sealing member 270. It is understandable that the number of the upper limiting portions 212 of the mounting bracket 210 can also be set to multiple, and the multiple limiting portions 212 are engaged with the multiple abutting portions 271 in a one-to-one correspondence.

[0110] In an embodiment of the present application, the installation position of the seal 270 on the mounting bracket 210 can be set corresponding to the closure 260. When the seal 270 is snapped onto the mounting bracket 210, the closure 260 is clamped between the seal 270 and the flow channel body 220. The seal 270 applies pressure to the closure 260 to maintain a seal between the closure 260 and the flow channel body 220 and between the closure 260 and the mounting bracket 210.

[0111] In the technical solution of the embodiment of the present application, by providing an abutment portion 271 on the seal 270 and correspondingly providing a limiting portion 212 on the mounting bracket 210, the seal 270 can be conveniently installed on the mounting bracket 210, and the limiting portion 212 forms a receiving space 213, so that when the abutment portion 271 abuts against the limiting portion 212, at least a portion of the abutment portion 271 is located in the receiving space 213, thereby making the assembly of the vehicle hydraulic suspension provided in the embodiment of the present application simple and convenient for production.

[0112] Reference Figure 8 、 Figure 9 and Figure 10 In some possible embodiments of the present application, the vehicle hydraulic mount further includes a guide structure 280 , which is disposed between the seal 270 and the mounting bracket 210 and is used to guide the seal 270 to move relative to the mounting bracket 210 .

[0113] For example, the guide structure 280 includes a guide protrusion 282 arranged on the outer wall of the seal 270, and a guide groove 281 arranged at a position corresponding to the guide protrusion 282 on the mounting bracket 210. The guide protrusion 282 and the guide groove 281 can guide the seal 270 to be installed on the mounting bracket 210 to facilitate the assembly of the seal 270 and the mounting bracket 210.

[0114] Reference Figure 10In a possible embodiment of the present application, a guide protrusion 282 is provided on the seal 270 at a position close to the abutment portion 271. A guide groove 281 is provided on the mounting bracket 210 at a position corresponding to the guide protrusion 282. It can be understood that the guide groove 281 needs to extend to the end of the mounting bracket 210. In this way, in the process of installing the seal 270 to the mounting bracket 210, the guide protrusion 282 can be first located in the guide groove 281. In this case, the abutment portion 271 is aligned with the limiting portion 212. In the process of installing the seal 270 to the mounting bracket 210, due to the limiting effect of the guide groove 281 on the abutment portion 271 and the seal 270, the abutment portion 271 can be easily snapped into the limiting portion 212.

[0115] It is understandable that the guide protrusion 282 can also be set on the mounting bracket 210, and the guide groove 281 can be set on the seal 270. In addition, the number of guide protrusions 282 and guide grooves 281 can be multiple, and the multiple guide protrusions 282 are evenly distributed along the circumference of the seal 270, and the multiple guide protrusions 282 and the multiple guide grooves 281 are set one by one.

[0116] Reference Figure 6 and Figure 7 In some possible embodiments of the present application, the vehicle hydraulic suspension further includes a limiting structure 500, which is disposed between the mounting bracket 210 and the fixing seat 100, and the limiting structure 500 limits the relative displacement of the mounting bracket 210 and the fixing seat 100 in at least two different directions.

[0117] For example, the limiting structure 500 includes a mounting protrusion 520 arranged on the mounting bracket 210, and a mounting groove 510 arranged on the side wall of the accommodating cavity 110, wherein the positions of the mounting groove 510 and the mounting protrusion 520 correspond to each other, wherein the mounting protrusion 520 is arranged along the radial direction of the mounting bracket 210, and the mounting protrusion 520 is installed in the mounting groove 510 with an interference fit, wherein the mounting protrusion 520 abuts against the inner wall of the mounting groove 510 along the axial direction of the mounting bracket 210, and also abuts against the inner wall of the mounting groove 510 along the radial direction of the mounting bracket 210, that is, the mounting protrusion 520 is adapted to the mounting groove 510 to limit the relative displacement of the mounting bracket 210 and the fixing seat 100 along at least two different directions.

[0118] In the embodiment of the present application, the size of the mounting protrusion 520 can be slightly larger than the size of the mounting groove 510, so that the mounting protrusion 520 forms an interference fit with the mounting groove 510. Alternatively, an interference fit structure can be formed between the mounting protrusion 520 and the mounting groove 510 to allow the mounting protrusion 520 to be installed in the mounting groove 510 by interference fit.

[0119] In the embodiment of the present application, the mounting protrusion 520 can be vertically arranged along the axial direction of the mounting bracket 210 at one end of the mounting bracket 210 near the rubber vibration damping module 300. In this way, the mounting protrusion 520 can limit the entire mounting bracket 210, preventing excessive displacement of the rubber vibration damping module 300 from causing excessive compression on the mounting bracket 210.

[0120] The technical solution provided in the embodiment of the present application facilitates installation of the mounting bracket 210 within the accommodating cavity 110 by providing a mounting protrusion 520 on the mounting bracket 210 and a mounting groove 510 on the sidewall of the accommodating cavity 110. By installing the mounting protrusion 520 within the mounting groove 510 with an interference fit in at least two different directions (e.g., horizontal and vertical directions), the mounting bracket 210 can be relatively fixed to the fixing base 100 in at least two different directions, thereby improving the supporting effect of the mounting bracket 210 on the rubber vibration damping module 300.

[0121] Reference Figure 7 In some possible embodiments of the present application, at least two raised ribs 521 are further provided on the surface of the mounting protrusion 520, wherein some of the raised ribs 521 protrude in the radial direction of the mounting bracket 210, and other parts of the raised ribs 521 protrude in the axial direction of the mounting bracket 210. The at least two raised ribs 521 enable the mounting protrusion 520 and the mounting groove 510 to have an interference fit in different directions.

[0122] In the embodiment of the present application, the cross-section of the raised rib 521 can be semicircular, trapezoidal, square, triangular, etc. For example, the surface of the mounting protrusion 520 is provided with a protrusion having a trapezoidal cross-section to form the raised rib 521. Furthermore, the extending direction of the raised rib 521 can be set to be parallel to the axial direction of the accommodating cavity 110, so that the mounting bracket 210 can be easily installed in the accommodating cavity 110.

[0123] The technical solution provided in the embodiment of the present application, compared to the overall interference fit between the mounting protrusion 520 and the mounting groove 510, is achieved by providing a raised rib 521 on the mounting protrusion 520, thereby forming an interference fit between the raised rib 521 and the mounting groove 510. This can achieve a more appropriate interference fit between the mounting protrusion 520 and the mounting groove 510, thereby reducing the probability of leakage of the hydraulic vibration damping module 200 and loss of damping medium due to a large interference fit between the mounting protrusion 520 and the mounting groove 510. Furthermore, it can also mitigate the reduction in the axial push-out force of the mounting bracket 210 along the accommodating cavity 110. Therefore, in the vehicle hydraulic mount provided in the embodiment of the present application, the provision of the raised rib 521 can achieve a more appropriate interference fit between the mounting protrusion 520 and the mounting groove 510, thereby ensuring that all aspects of the vehicle hydraulic mount's performance meet requirements.

[0124] Based on this, the assembly process of the vehicle hydraulic mount provided in the embodiment of the present application is as follows: The flow channel body 220, the closure member 260, and the seal 270 are placed together. The flow channel body 220, the closure member 260, and the seal 270 are then pressed into the integral structure formed by the vulcanization connection of the mounting bracket 210 and the rubber vibration damping module 300 on a press machine. The seal 270 can then be snapped into place with the mounting bracket 210.

[0125] Reference Figure 1 and Figure 11 , which is a schematic diagram of the installation of a vehicle hydraulic mount on a vehicle frame 010 according to some embodiments of the present application. Regarding the vehicle frame 010 comprising a longitudinal beam 011 and a connecting beam 012, a connecting arm 130 connected to the connecting beam 012 may be provided on the fixing seat 100. A fastener connection hole 432 may be provided at one end of the connecting arm 130 near the connecting beam 012, so that the connecting arm 130 and the connecting beam 012 are fixedly connected together by a fastener.

[0126] In addition, refer to Figure 1 、 Figure 2 and Figure 11 A mounting seat 013 may be provided on the longitudinal beam 011 , and a support platform 120 may be provided on the fixing seat 100 at a position corresponding to the mounting seat 013 , and the support platform 120 and the mounting seat 013 may be fixedly connected together by fasteners.

[0127] In an embodiment of the present application, the position of the support platform 120 can be set to be higher than the bottom end of the mounting seat 013. In this way, part of the structure at the bottom of the fixing seat 100 can be set between the two mounting seats 013, thereby further reducing the installation space required for the vehicle hydraulic suspension in the embodiment of the present application.

[0128] Further, refer to Figure 11 In some embodiments of the present application, the number of mounting seats 013 can be set to two, and the distance D between the two mounting seats 013 and the vertical distance H between the fastener connection hole 432 on the connecting beam 012 and the mounting seat 013 can be matched with the size settings of the vehicle hydraulic suspension. For example, the distance D is set to 148.4 mm and the distance H is set to 83.8 mm, so that the vehicle hydraulic suspension provided in the embodiment of the present application can better meet the above-mentioned installation dimensions.

[0129] The serial numbers of the embodiments of this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only preferred embodiments of this application and do not limit the scope of the patent of this application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

Claims

1. A vehicle hydraulic mount, characterized in that: Used to be installed between a powertrain (020) of a vehicle and a frame (010) of the vehicle, the vehicle hydraulic mount comprises: A fixing seat (100) is used to be connected to the vehicle frame (010), and a receiving cavity (110) is provided in the fixing seat (100); a rubber vibration damping module (300) disposed in the accommodating cavity (110), the rubber vibration damping module (300) being used to connect to the power assembly (020) and provide damping through elastic deformation; A hydraulic vibration damping module (200) is arranged in the accommodating cavity (110), the hydraulic vibration damping module (200) comprising a mounting bracket (210) and a flow channel assembly, and forming a first sealed cavity (M1); one end of the mounting bracket (210) is sealedly connected to the rubber vibration damping module (300), so that a second sealed cavity (M2) is formed between the rubber vibration damping module (300) and the hydraulic vibration damping module (200), the volume of the second sealed cavity (M2) changes with the deformation of the rubber vibration damping module (300), the flow channel assembly is connected to the interior of the mounting bracket (210), and the flow channel assembly is integrally formed with a flow channel groove (230), at least a portion of the flow channel groove (230) cooperates with the mounting bracket (210) to form an inertial flow channel (L), and the inertial flow channel (L) connects the first sealed cavity (M1) with the second sealed cavity (M2).

2. The vehicle hydraulic mount according to claim 1, characterized in that: The inertial flow channel (L) includes a first flow channel (L1) and a second flow channel (L2), wherein the first flow channel (L1) is connected between the first sealed cavity (M1) and the second flow channel (L2); The mounting bracket (210) comprises a first wall surface (241) surrounding the flow channel assembly, the flow channel assembly is provided with a first groove body (231) facing the first wall surface (241), and the first groove body (231) and the first wall surface (241) enclose to form the first flow channel (L1); The flow channel assembly comprises a flow channel body (220), and the first groove body (231) is arranged around the circumference of the flow channel body (220).

3. The vehicle hydraulic mount according to claim 2, characterized in that: The flow channel assembly comprises a cover plate (250), and the two ends of the flow channel body (220) along its axial direction correspond to the first sealed cavity (M1) and the second sealed cavity (M2) respectively; The cover plate (250) is arranged between the flow channel body (220) and the second sealed cavity (M2), and the cover plate (250) includes a second wall surface (242) facing the flow channel body (220), the flow channel body (220) is provided with a second groove body (232) facing the second wall surface (242), and the second groove body (232) and the second wall surface (242) are enclosed to form the first flow channel (L1).

4. The vehicle hydraulic mount according to any one of claims 1 to 3, characterized in that: The extension axis of the inertial flow channel (L) is a straight line, a curve, a wavy line, a spiral line or a combination thereof.

5. The vehicle hydraulic mount according to any one of claims 1 to 3, characterized in that: The mounting bracket (210) is made of plastic material, and the material density of the mounting bracket (210) is less than or equal to the material density of the fixing seat (100).

6. The vehicle hydraulic mount according to any one of claims 1 to 3, characterized in that: A bearing portion (214) is provided on one side of the mounting bracket (210) facing the rubber vibration damping module (300), the bearing portion (214) protruding in the radial direction of the mounting bracket (210), and the rubber vibration damping module (300) abuts against the bearing portion (214) at least along its deformation direction.

7. The vehicle hydraulic mount according to claim 3, characterized in that: The hydraulic vibration reduction module (200) further comprises: a closing member (260) sealingly connected to an end of the flow channel body (220) away from the second sealed cavity (M2) to enclose the flow channel body (220) to form the first sealed cavity (M1); a sealing member (270), the sealing member (270) being connected between the closing member (260), the mounting bracket (210), and the fixing seat (100) to seal the first sealed cavity (M1); The sealing member (270) is at least partially located in a recessed portion of the mounting bracket (210) and is snap-fitted with the mounting bracket (210), and the sealing member (270) is interference-fitted with the fixing seat (100).

8. The vehicle hydraulic mount according to claim 7, characterized in that: One of the mounting bracket (210) and the sealing member (270) is provided with a limiting portion (212), and the other is provided with an abutting portion (271); The limiting portion (212) is formed with an accommodation space (213), so that when the abutting portion (271) abuts against the limiting portion (212), at least a portion of the abutting portion (271) is located in the accommodation space (213).

9. The vehicle hydraulic mount according to claim 7, characterized in that: The invention also includes a guide structure (280), which is arranged between the sealing member (270) and the mounting bracket (210) and is used to guide the sealing member (270) to move relative to the mounting bracket (210).

10. The vehicle hydraulic mount according to any one of claims 1 to 3, characterized in that: The invention also includes a limiting structure (500), wherein the limiting structure (500) is arranged between the mounting bracket (210) and the fixing seat (100), and the limiting structure (500) limits the relative displacement of the mounting bracket (210) and the fixing seat (100) in at least two different directions.

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