Runner assembly for hydraulic mount, hydraulic mount and vehicle

Abstract

The embodiment of the utility model relates to the technical field of vehicles, and discloses a flow channel assembly for a hydraulic mount, the hydraulic mount and a vehicle. The flow channel assembly for the hydraulic mount comprises a flow guide part, and the side wall of the flow guide part is used for making sealing contact with the inner wall of a containing cavity formed in a mount shell; the accommodating cavity is divided into an upper cavity and a lower cavity; a flow guide groove is formed in the side wall of the flow guide part in a winding mode, at least part of the flow guide groove is obliquely formed, and the flow guide groove is used for being matched with the inner wall of the containing cavity to form a runner. A first connecting port and a second connecting port are formed in the two ends of the flow guide part respectively, the first connecting port is used for correspondingly communicating the upper cavity with the flow guide groove, and the second connecting port is used for correspondingly communicating the lower cavity with the flow guide groove, so that the cross section area and length of the flow channel are effectively increased, the flowing resistance of liquid is increased, and the vibration energy consumption effect of the hydraulic mount is improved.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of vehicle technology, and more particularly to a flow channel assembly for a hydraulic mount, a hydraulic mount, and a vehicle. Background Art

[0002] The hydraulic mount is a component that connects the vehicle body and the powertrain. It can fix the powertrain to ensure its normal operation on the vehicle body. It can also reduce the vibration and noise transmitted from the powertrain to the vehicle body, thereby improving the driving comfort of the entire vehicle. In addition, it can also prevent the powertrain from moving significantly, thereby preventing the powertrain from colliding with other components in the cabin due to excessive displacement.

[0003] Hydraulic suspension generally includes a suspension shell and a flow channel assembly. A accommodating chamber is provided in the suspension shell. The flow channel assembly divides the accommodating chamber into an upper chamber and a lower chamber. A flow channel connecting the upper chamber and the lower chamber is provided on the flow channel assembly. During the operation of the vehicle, the liquid flows between the upper chamber and the lower chamber through the flow channel through the deformation of the cavity wall of the accommodating chamber. In this process, the resistance encountered by the liquid when flowing in the flow channel can be utilized to consume vibration energy and reduce vehicle vibration.

[0004] However, due to the volume limitation of the hydraulic mount, the length of the flow channel on the flow channel assembly is generally short, and the effect of consuming vibration energy is limited. Utility Model Content

[0005] In view of this, embodiments of the present application provide a flow channel assembly for a hydraulic mount, a hydraulic mount, and a vehicle, so as to achieve the effect of improving the vibration reduction capability of the hydraulic mount.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0007] In a first aspect, embodiments of the present application provide a flow channel assembly for a hydraulic mount, the hydraulic mount comprising a suspension housing having an internal accommodating chamber, the flow channel assembly comprising a flow guide, the sidewalls of the flow guide being configured to sealably contact an inner wall of the accommodating chamber to separate the accommodating chamber into an upper chamber and a lower chamber;

[0008] A guide groove is provided on the side wall of the guide member, and the guide groove is at least partially inclined, and is used to cooperate with the inner wall of the accommodating cavity to form a flow channel;

[0009] The two ends of the guide member are respectively provided with a first connecting port and a second connecting port, the first connecting port is used to correspondingly connect the upper chamber and the guide groove, and the second connecting port is used to correspondingly connect the lower chamber and the guide groove.

[0010] In a possible implementation of the present application, the guide grooves are provided in at least two layers and are arranged sequentially along the thickness direction of the guide member, and the guide grooves of two adjacent layers are connected to each other.

[0011] In a possible implementation of the present application, the guide groove includes a guide section and a connecting section that are interconnected, the connecting section is used to communicate with the connecting section of another adjacent guide groove, and the connecting section is arranged at an angle.

[0012] In a possible implementation of the present application, the guide sections of all the guide grooves are parallel to each other.

[0013] In a possible implementation of the present application, the guide groove is a spiral groove arranged on the side wall of the guide member.

[0014] In a possible implementation of the present application, it also includes a cover plate, which is arranged on the surface of the guide member facing the upper chamber, and the first connection port and the second connection port are respectively arranged on two opposite surfaces of the guide member, and a third connection port is opened on the cover plate, and the third connection port is connected to the first connection port.

[0015] In a possible implementation of the present application, at least two connecting columns are provided on one of the guide member and the cover plate, and a mounting hole that cooperates with the connecting columns is provided on the other, so as to limit the relative position of the cover plate and the guide member through the mounting holes and the connecting columns.

[0016] In a possible implementation of the present application, a decoupling membrane is further included, which is clamped between the guide member and the cover plate. The guide member is provided with at least one first connection hole, and the first connection hole is located inside the area surrounded by the guide groove. The cover plate is provided with at least one second connection hole, and the first connection hole and the second connection hole are respectively arranged on opposite sides of the decoupling membrane.

[0017] In a second aspect, an embodiment of the present application provides a hydraulic mount, comprising a suspension housing and a flow channel assembly as described in any one of the first aspects, wherein the flow channel assembly is disposed in the suspension housing.

[0018] In a third aspect, an embodiment of the present application provides a vehicle comprising a vehicle body, a powertrain, and the hydraulic mount described in the second aspect, wherein the hydraulic mount is used to connect the vehicle body and the powertrain.

[0019] In the flow channel assembly, hydraulic suspension and vehicle provided by the embodiment of the present application, the flow channel assembly for the hydraulic suspension is provided with a guide member, the side wall of the guide member is used to seal and contact with the inner wall of the accommodating cavity provided on the suspension shell to separate the accommodating cavity into an upper chamber and a lower chamber, the side wall of the guide member is provided with a guide groove, the length of the guide groove is greater than the circumference of the side wall of the guide member, and the guide groove can cooperate with the inner wall of the accommodating cavity to form a flow channel for liquid to pass through when the side wall of the guide member contacts the inner wall of the accommodating cavity, and the two ends of the guide member are respectively provided with a first connection port and a second connection port. During the use of the hydraulic suspension The liquid filled in the accommodating chamber can enter the flow channel through one of the first connecting port and the second connecting port and leave the flow channel from the other. When the liquid flows through the flow channel, there is not only viscous damping between the liquids, but also resistance between the liquid and the flow channel. The length of the flow channel is relatively long, and the guide groove is a flow channel formed by cooperating with the inner wall of the accommodating chamber. There is no additional wall between the guide groove and the cavity wall of the accommodating chamber for closing the outer periphery of the guide groove, which can greatly increase the cross-sectional cotton knot of the flow channel, so that when the liquid flows through the flow channel, the flow resistance is greater, thereby effectively consuming vibration energy and solving the aftershock problem when the vehicle passes through a significantly bumpy road. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A cross-sectional view of a hydraulic mount provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of the hydraulic mount provided in an embodiment of the present application;

[0022] Figure 3 A top view of a flow guide member in a flow channel assembly provided in an embodiment of the present application;

[0023] Figure 4 A three-dimensional diagram of a flow guide member in a flow channel assembly provided in an embodiment of the present application;

[0024] Figure 5 A side view of a flow guide member in a flow channel assembly provided in an embodiment of the present application;

[0025] Figure 6 A schematic diagram of the structure of the flow channel assembly provided in an embodiment of the present application from a first perspective;

[0026] Figure 7 A schematic structural diagram of a flow channel assembly from a second perspective provided in an embodiment of the present application;

[0027] Figure 8 A schematic structural diagram of the decoupling membrane in the flow channel assembly provided in an embodiment of the present application.

[0028] Reference numerals:

[0029] 100 - suspension housing; 110 - main spring; 120 - bottom membrane; 130 - outer frame; 131 - plug; 140 - accommodation chamber; 141 - upper chamber; 142 - lower chamber; 150 - inner frame; 160 - diaphragm buckle;

[0030] 210- flow guide; 211- flow guide groove; 2111- flow guide section; 2112- connection section; 212- second connection port; 213- first connection port; 214- connection column; 215- first connection hole; 220- cover plate; 221- mounting hole; 222- third connection port; 223- second connection hole; 230- decoupling membrane. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] The embodiments of the present application provide a flow channel assembly, a hydraulic suspension and a vehicle for a hydraulic mount. It should be noted that the vehicle in the present application may refer to a large car, a small car, a special-purpose vehicle, etc. For example, according to the vehicle model, the vehicle in the present application may be a sedan model, an off-road model, a multi-purpose vehicle (MPV) model or other models. These vehicles are generally provided with components such as a body, wheels, and a powertrain. The body and the powertrain are connected through the hydraulic mount in the present application.

[0038] Among them, the suspension, as a performance component connecting the body and the powertrain, contributes a large part to the NVH performance of the entire vehicle. Ordinary rubber suspension has three main functions: 1. Fixing the powertrain in the designed position of the body to ensure the normal operation of the powertrain on the body; 2. Reducing the vibration and noise transmitted to the body by the powertrain, thereby improving the driving comfort of the entire vehicle; 3. Limiting the large displacement of the powertrain to prevent the engine from colliding with other components in the cabin due to excessive displacement.

[0039] As people's requirements for vehicle driving comfort performance become increasingly higher, the suspension is not only required to reduce the vibration and noise transmitted from the powertrain to the car body, but also to solve and reduce the impact of road excitation transmitted to the powertrain. However, ordinary rubber suspension is not effective in solving the problem of road excitation transmitting vibration to the powertrain. This is mainly because ordinary rubber suspension cannot achieve the effect of high damping to lose the vibration energy transmitted to the powertrain by road excitation, and thus cannot achieve the effect of quickly attenuating vibration.

[0040] To address this issue, hydraulic mounts have emerged. They generally consist of a mount housing and a flow channel assembly. The mount housing contains a chamber, which is divided into an upper chamber and a lower chamber by the flow channel assembly. The flow channel assembly is provided with a flow channel connecting the upper and lower chambers. The upper and lower chambers are filled with liquid. When a vehicle travels on a bumpy road, road excitation causes the powertrain to vibrate significantly. Because the powertrain and the hydraulic mount are rigidly connected by bolts, the main springs that make up the mount housing undergo significant deformation. This deformation of the main springs causes the volume of the upper chamber to change. As the main springs deform downward, the volume of the upper chamber decreases. The liquid in the upper chamber is squeezed by the main springs and flows through the flow channel into the lower chamber, increasing the pressure in the lower chamber. This increased pressure in the lower chamber causes the bottom diaphragm of the mount housing to deform to balance the increased pressure in the lower chamber. As the main springs deform upward, the volume of the upper chamber increases and the pressure decreases. The deformed bottom diaphragm releases pressure, which causes the liquid in the lower chamber to flow back through the flow channel to the upper chamber. Since the engine vibration will cause the main spring to deform back and forth, the liquid in the upper and lower chambers will flow back and forth through the flow channel. Due to the viscous damping between the liquids and the resistance between the liquid and the flow channel, the liquid can quickly consume the vibration energy of the powertrain when flowing back and forth in the upper and lower chambers.

[0041] However, in actual applications, due to the volume limitation of the hydraulic mount, the flow channel length on the flow channel assembly is generally short, and the effect of consuming vibration energy is limited.

[0042] To this end, embodiments of the present application provide a flow channel assembly for a hydraulic mount, a hydraulic mount, and a vehicle. The flow channel assembly for the hydraulic mount includes a flow guide member, the sidewall of the flow guide member being configured to sealably contact the inner wall of a receiving chamber provided on a suspension housing to separate the receiving chamber into an upper chamber and a lower chamber. The sidewall of the flow guide member is provided with a flow guide groove, the length of which is greater than the circumference of the sidewall of the flow guide member. When the sidewall of the flow guide member contacts the inner wall of the receiving chamber, the flow guide groove cooperates with the inner wall of the receiving chamber to form a flow channel for liquid to pass through. The flow guide member is provided with a first connection port and a second connection port at each end. During use of the hydraulic mount, liquid filled in the receiving chamber can enter the flow channel through one of the first connection port and the second connection port and exit the flow channel through the other. When the liquid flows through the flow channel, not only viscous damping exists between the liquid and the flow channel, but also resistance exists between the liquid and the flow channel. The long length of the flow channel allows the liquid to effectively dissipate vibration energy when flowing through the flow channel, thereby resolving the problem of aftershock that occurs when the vehicle travels over a significantly bumpy road surface.

[0043] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0044] In some embodiments, see Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, the flow channel assembly for the hydraulic mount includes a flow guide 210 .

[0045] The sidewalls of the flow guide 210 are configured to sealably contact the inner wall of the accommodating chamber 140, thereby dividing the accommodating chamber 140 into an upper chamber 141 and a lower chamber 142 disposed in a vertical relationship. A flow guide groove 211 is provided on the sidewalls of the flow guide 210. When the sidewalls of the flow guide 210 sealably contact the inner wall of the accommodating chamber 140, the flow guide groove 211 cooperates with the inner wall of the accommodating chamber 140 to form a flow channel. Specifically, the side of the flow guide groove 211 facing the inner wall of the accommodating chamber 140 is open and sealed by the wall of the accommodating chamber 140. A first connection port 213 and a second connection port 212 are respectively provided at both ends of the guide member 210. The first connection port 213 and the second connection port 212 are respectively connected to the two ends of the flow channel, and the first connection port 213 and the second connection port 212 are also used to communicate with the upper chamber 141 and the lower chamber 142 respectively. For the sake of ease of understanding, the end of the guide member 210 facing the upper chamber 141 can be recorded as the first connection port 213, and the end of the guide member 210 facing the lower chamber 142 can be recorded as the second connection port 212, so as to facilitate the flow of liquid between the upper chamber 141 and the lower chamber 142.

[0046] The guide groove 211 is disposed around the side wall of the guide member 210 and is at least partially inclined, so that the length of the flow channel formed thereby is greatly increased, thereby effectively extending the flow of the liquid in the flow channel.

[0047] For example, the guide groove 211 may be provided on the side wall in a serpentine shape, and may extend along the thickness direction of the guide member 210 .

[0048] Exemplarily, the guide groove 211 may be an annular groove 2111 body obliquely disposed on the side wall of the guide member 210 .

[0049] It is understandable that this is just an example for illustration, and the guide groove 211 only needs to be longer than the circumference of the side wall of the guide member 210 , and this embodiment does not limit it.

[0050] As for the connection between the guide member 210 and the accommodating chamber 140 , it is sufficient as long as the two can be sealed and the liquid does not flow between the upper chamber 141 and the lower chamber 142 through the gap therebetween.

[0051] For example, the side wall of the flow guide 210 and the cavity wall of the accommodating cavity 140 may be interference fit, and sealed contact between the flow guide 210 and the cavity wall of the accommodating cavity 140 can be achieved without adding other sealing components.

[0052] The flow channel assembly of this embodiment directly opens a guide groove 211 on the side wall of the guide member 210. The guide groove 211 is open on the side of the cavity wall facing the accommodating cavity 140, which can reduce one wall surface, thereby maximizing the cross-sectional area of the formed flow channel on the guide member 210 with a limited volume. At the same time, the flow channel is set on the side wall of the guide member 210, and the length of the flow channel is greater than the length of the side wall. Compared with the existing flow channel assembly, not only the cross-sectional area of the flow channel is larger, but the length is also longer, so that when the liquid flows through the flow channel, the flow resistance is greater, the vibration energy of the powertrain can be consumed more quickly, and the vibration can be quickly attenuated.

[0053] In some embodiments, the guide grooves 211 are provided with at least two layers and are arranged in sequence along the thickness direction of the guide member. The two adjacent layers of guide grooves 211 are connected to each other. The thickness direction of the guide member 210 can be understood as the direction from the upper chamber 141 to the lower chamber 142. The two adjacent layers of guide grooves 211 are connected to each other so that the liquid filled in the accommodating cavity 140 enters a guide groove 211 adjacent to it through one of the first connecting port 213 and the second connecting port 212, and leaves the guide member 200 from the other after flowing through all the guide grooves 211.

[0054] Specifically, the two ends of the guide groove 211 are ports for liquid entry and exit, and it is connected to the other adjacent guide groove 211 through one of the two ports. For the guide groove 211 adjacent to the upper chamber 141, one port is connected to the first connecting port 213, and the other port is connected to a port of the next guide groove 211. For the guide groove 211 adjacent to the lower chamber 142, one port is connected to the second connecting port 212, and the other port is connected to a port of the previous guide groove 211, so that all guide grooves 211 are connected to each other, and the fluid entering the flow channel must flow through all guide grooves 211 before leaving.

[0055] It is understandable that the number of layers of the guide grooves 211 and the height of a single guide groove 211 can be determined according to the thickness of the guide member 210 and the actual use environment, and this embodiment does not limit them.

[0056] Specifically, the guide groove 211 includes a guide section 2111 and a connecting section 2112 that are connected to each other. The connecting section 2112 is used to communicate with the connecting section 2112 of another adjacent guide groove 211 , and the connecting section 2112 is arranged obliquely.

[0057] To further extend the length of the flow channel, adjacent flow guide sections 2111 can be made parallel to each other. At the same time, the extension direction of the flow guide sections 2111 can be made parallel to the surface of the flow guide 210, so that as many flow guide grooves 211 as possible are provided on the sidewall of the flow guide 210 to extend the length of the flow channel.

[0058] For example, Figure 5 As shown, the guide groove 211 is provided with two layers, and the connecting sections between the two layers of guide grooves 211 are connected to each other, so that the two layers of guide grooves 211 are connected, and the ends of the two guide grooves 211 away from the connecting sections are respectively connected to the first connecting port 213 and the second connecting port 212.

[0059] If multiple layers of guide grooves 211 are provided, then for a guide groove 211 with other guide grooves 211 on both sides, connecting sections may be provided at both ends to connect with the guide grooves 211 on both sides respectively.

[0060] It is understandable that adjacent guide grooves 211 can also be connected in other ways, as long as the liquid enters from one end of the flow channel and leaves from the other end. For example, a vertical baffle can be set in the guide groove 211, and then openings are directly opened on both sides of the vertical baffle to respectively connect the two adjacent guide grooves 211.

[0061] In some embodiments, the guide groove 211 is a spiral groove wound around the side wall of the guide member 210, which can effectively extend the length of the flow channel and increase the liquid flow resistance.

[0062] In some embodiments, see Figure 6 and Figure 7 As shown, the flow channel assembly also includes a cover plate 220, which is covered on one surface of the guide member 210, the first connection port 213 is arranged on the surface adjacent to the guide member 210 and the cover plate 220, and the second connection port 213 is arranged on the other surface opposite thereto, and the cover plate 220 is provided with a third connection port 222 which is connected to the first connection port 213.

[0063] Specifically, the cover plate 220 is covered on the top of the guide member 210, that is, the guide member 210 faces one end of the upper chamber 141. At this time, the third connection port 222 is opposite to and connected with the first connection port 213. The third connection port 222 can also be a groove set on the side of the cavity wall close to the accommodating cavity 140. The first connection port 213 and the second connection port 212 are also grooves set on the side of the cavity wall close to the accommodating cavity 140. When the cover plate 220 is covered on the guide member 210, the third connection port 222 is opposite to the first connection port 213. Taking the flow of liquid from the upper chamber 141 to the lower chamber 142 as an example, the liquid enters the first connection port 213 through the third connection port 222, and then enters the first guide groove 211. After flowing through all the guide grooves 211, it leaves the flow channel from the second connection port 212 and enters the lower chamber 142.

[0064] In some embodiments, at least two connecting columns 214 are provided on one of the guide member 210 and the cover plate 220, and a mounting hole 221 that cooperates with the connecting columns 214 is provided on the other to limit the relative position of the cover plate 220 and the guide member 210 through the mounting holes 221 and the connecting columns 214.

[0065] For example, two connecting columns 214 can be arranged opposite to each other on the cover plate 220, and two mounting holes 221 can be arranged opposite to each other on the guide member 210, and the connecting columns 214 and the mounting holes 221 can be interference fit, so that the cover plate 220 can be fixed to the guide member 210 through the connecting columns 214 and the mounting holes 221.

[0066] Of course, the cover plate 220 and the guide member 210 may also be connected in other common ways, as long as the two do not undergo relative displacement during use, and this embodiment does not limit this.

[0067] In actual use, although the hydraulic mount can improve the vibration problem of the entire vehicle when driving on a significantly bumpy road, the hydraulic mount will experience dynamic stiffness hardening at high frequencies (20-75Hz) and small amplitudes (the stiffness increases sharply with increasing excitation frequency). This phenomenon is caused by the resonance of the liquid flowing back and forth in the flow channels. The occurrence of dynamic stiffness hardening will lead to a deterioration of the NVH performance of the entire vehicle.

[0068] In this regard, the flow channel assembly of this embodiment further includes a decoupling membrane 230, see Figure 1 、 Figure 7 and Figure 8As shown, the decoupling membrane 230 is sandwiched between the guide member 210 and the cover plate 220, and the decoupling membrane 230 is spaced apart from the guide groove 211, that is, the decoupling membrane 230 is located on the inner side of the area surrounded by the guide groove 211, and the part of the guide member 210 opposite to the decoupling membrane 230 is provided with at least one first connecting hole 215 penetrating the guide member 210, and the part of the cover plate 220 opposite to the decoupling membrane 230 is provided with at least one second connecting hole 223 penetrating the cover plate 220. At high frequency and small amplitude, as the decoupling membrane 230 vibrates, the liquid can flow between the upper chamber 141 and the lower chamber 142 through the first connecting hole 215 and the second connecting hole 223, thereby changing the flowing liquid mode in the flow channel and avoiding the resonance between the reciprocating flowing liquid and the flow in the flow channel, thereby solving the dynamic hardening phenomenon of stiffness under small amplitude excitation of 20-75Hz and improving the NVH performance of vehicle driving.

[0069] Specifically, a mounting groove can be set at the end of the guide member 210 facing the upper chamber 141. The mounting groove is located on the inner side of the guide groove 211, and the mounting groove shares the same side wall with the guide groove 211 to increase the cross-sectional area of the flow channel. The decoupling membrane 230 is placed in the mounting groove, and when the cover plate 220 is covered on the guide member 210, it will seal the open end of the mounting groove, thereby limiting the position of the decoupling membrane 230 and preventing the decoupling membrane 230 from leaving the mounting groove and causing abnormal noise.

[0070] Among them, Figure 8 As shown, the decoupling membrane 230 can be set to an elliptical shape. For vehicles with a small space for layout in the direction from the main driver to the co-driver, this shape can save layout space and make the space occupied in this direction small while ensuring sufficient surface area.

[0071] Furthermore, convex strips may be provided on both end surfaces of the decoupling membrane 230 , namely the surface facing the bottom of the mounting groove and the surface facing the cover plate 220 , so as to reduce the noise generated by the vibration of the decoupling membrane 230 through the convex strips.

[0072] In addition, the convex strips may be arranged in a variety of different directions to enhance the turbulent effect on the liquid, thereby helping to improve the ability of the hydraulic mount to consume vibration energy.

[0073] See Figure 1 and Figure 2 As shown, an embodiment of the present application further provides a hydraulic mount, comprising a suspension housing 100 and the flow channel assembly in the above embodiment, wherein the flow channel assembly is disposed in the suspension housing 100 .

[0074] Exemplarily, the suspension shell 100 includes an outer skeleton 130, a main spring 110, and a bottom membrane 120. A accommodating cavity 140 is provided on the outer skeleton 130. The main spring 110 and the bottom membrane 120 are respectively connected to the two ends of the outer skeleton 130 to close the two ends of the accommodating cavity 140. The flow channel assembly is provided in the accommodating cavity 140 to separate the accommodating cavity 140 into an upper chamber 141 and a lower chamber 142.

[0075] Among them, the suspension shell 100 can also include an inner skeleton 150, a first side bracket and a second side bracket. The inner skeleton 150 is located in the main spring 110 and is rigidly connected to the first side bracket through bolts and other components. The first side bracket is used to connect to the vehicle's powertrain, and the second side bracket is used to connect to the vehicle body. The first side bracket and the second side bracket can both be integrally formed by aluminum die-casting.

[0076] In addition, the suspension shell 100 can also include a diaphragm clip and a plug 131. The diaphragm clip is used to clip with the outer skeleton 130 to fix the bottom membrane 120 on the outer skeleton 130. A liquid inlet hole can be opened on the outer skeleton 130, and the plug 131 is used to close the liquid inlet hole so that liquid can be added to the accommodating cavity 140 through the liquid inlet hole.

[0077] When the vehicle is traveling on a bumpy road, road excitation will cause the powertrain to vibrate significantly. Since the powertrain and the inner frame 150 are rigidly connected by bolts, the main spring 110 will deform significantly. The deformation of the main spring 110 will cause the volume of the upper chamber 141 to change. When the main spring 110 deforms downward, the volume of the upper chamber 141 decreases, and the pressure in the lower chamber 142 increases. After the pressure in the lower chamber 142 increases, the bottom diaphragm 120 will deform to balance the increased pressure in the lower chamber 142; when the main spring 110 deforms upward, the volume of the upper chamber 141 increases and the pressure decreases. The deformed bottom diaphragm 120 will release the pressure, and this pressure acts on the liquid in the lower chamber 142, causing the liquid in the lower chamber 142 to flow back to the upper chamber 141 through the flow channel. Since the engine vibration will cause the main spring 110 to deform back and forth, the liquid in the upper chamber 141 and the lower chamber 142 will flow back and forth through the flow channel. Since there is viscous damping between the liquids and there is also resistance between the liquid and the flow channel, the liquid can quickly consume the vibration energy of the powertrain when flowing back and forth in the upper chamber 141 and the lower chamber 142, thereby quickly attenuating the vibration and effectively solving the aftershock problem of the vehicle when driving on a bumpy road.

[0078] It is understandable that the suspension housing 100 may also be of other structures, as long as it can play a similar role of causing the upper cavity and the lower cavity to deform and promote the flow of liquid during vibration. This embodiment does not limit this.

[0079] An embodiment of the present application further provides a vehicle, which includes a vehicle body, a powertrain, and the hydraulic mount in the above embodiment, wherein the hydraulic mount is used to connect the vehicle body and the powertrain.

[0080] The structures of the vehicle body and the powertrain, as well as the connection method between the vehicle body, the powertrain and the hydraulic mount are all well known to those skilled in the art and will not be described in detail in this embodiment.

[0081] 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 flow channel assembly for a hydraulic mount, the hydraulic mount comprising a suspension housing (100) with an accommodating cavity (140) disposed therein, characterized in that: The flow channel assembly comprises a flow guide (210), wherein a side wall of the flow guide (210) is used to be in sealing contact with an inner wall of the accommodating cavity (140) to separate the accommodating cavity (140) into an upper chamber (141) and a lower chamber (142); A guide groove (211) is provided on the side wall of the guide member (210), and the guide groove (211) is at least partially inclined. The guide groove (211) is used to cooperate with the inner wall of the accommodating cavity (140) to form a flow channel; The flow guide (210) is provided with a first connection port (213) and a second connection port (212); the first connection port (213) is used to correspondingly connect the upper chamber (141) and the flow guide groove (211); and the second connection port (212) is used to correspondingly connect the lower chamber (142) and the flow guide groove (211).

2. The flow channel assembly for hydraulic mount according to claim 1, characterized in that: The guide grooves (211) are provided with at least two layers and are arranged in sequence along the thickness direction of the guide member (210), and the guide grooves (211) of two adjacent layers are connected to each other.

3. The flow channel assembly for hydraulic mount according to claim 2, characterized in that: The guide groove (211) comprises a guide section (2111) and a connecting section (2112) that are in communication with each other. The connecting section (2112) is used to communicate with the connecting section (2112) of another adjacent guide groove (211). The connecting section (2112) is arranged obliquely.

4. The flow channel assembly for hydraulic mount according to claim 3, characterized in that: The guide sections (2111) of all the guide grooves (211) are parallel to each other.

5. The flow channel assembly for hydraulic mount according to claim 1, characterized in that: The guide groove (211) is a spiral groove wound around the side wall of the guide member (210).

6. The flow channel assembly for hydraulic mount according to any one of claims 1 to 5, characterized in that: The invention further comprises a cover plate (220), wherein the cover plate (220) is arranged on the surface of the guide member (210) facing the upper chamber (141), the first connection port (213) and the second connection port (212) are respectively arranged on two opposite surfaces of the guide member (210), and a third connection port (222) is provided on the cover plate (220), and the third connection port (222) is communicated with the first connection port (213).

7. The flow channel assembly for hydraulic mount according to claim 6, characterized in that: One of the flow guide (210) and the cover plate (220) is provided with at least two connecting columns (214), and the other is provided with mounting holes (221) that cooperate with the connecting columns (214), so as to limit the relative position of the cover plate (220) and the flow guide (210) through the mounting holes (221) and the connecting columns (214).

8. The flow channel assembly for hydraulic mount according to claim 6, characterized in that: The invention also includes a decoupling membrane (230), wherein the decoupling membrane (230) is sandwiched between the flow guide (210) and the cover plate (220); the flow guide (210) is provided with at least one first connection hole (215), and the first connection hole (215) is located inside the area surrounded by the flow guide groove (211); the cover plate (220) is provided with at least one second connection hole (223), and the first connection hole (215) and the second connection hole (223) are respectively provided on opposite sides of the decoupling membrane (230).

9. A hydraulic mount, characterized in that: It comprises a suspension housing (100) and a flow channel assembly according to any one of claims 1 to 8, wherein the flow channel assembly is arranged in the suspension housing (100).

10. A vehicle, characterized in that: The vehicle comprises a vehicle body, a powertrain, and the hydraulic mount according to claim 9, wherein the hydraulic mount is used to connect the vehicle body and the powertrain.

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