Hydraulic suspension device and vehicle

Abstract

The utility model discloses a hydraulic suspension device and a vehicle, and relates to the field of automobile spare parts, the hydraulic suspension device comprises a first connecting support, a second connecting support and a hydraulic suspension main body, the hydraulic suspension main body is connected between the first connecting support and the second connecting support, and the first connecting support is connected with the second connecting support. A plurality of damping cavities are defined by the hydraulic suspension body, each damping cavity comprises a first liquid chamber and a second liquid chamber which are communicated with each other, and the first liquid chambers of at least two damping cavities are communicated with each other. According to the hydraulic suspension device, the low-frequency large-amplitude damping performance can be improved, the high-frequency small-amplitude dynamic stiffness can be reduced, the damping characteristic can be achieved in different directions, the damping characteristic direction is not single any more, power assembly vibration excitation can be better restrained, and the comfort of a vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile accessories, in particular to a hydraulic suspension device and a vehicle with the hydraulic suspension device. Background Art

[0002] As users pay more and more attention to and demand more and more comfort in vehicles, the requirements for hydraulic suspension performance are also getting higher and higher. In the related technology, the hydraulic suspension device used in the vehicle has only one hydraulic system, the low-frequency large-amplitude damping performance is relatively low, the high-frequency small-amplitude dynamic stiffness is relatively high, and the damping characteristic direction is single, and the damping characteristic can only be realized in one direction, which affects the vibration isolation performance of the vehicle. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a hydraulic suspension device that can improve the low-frequency large-amplitude damping performance and reduce the high-frequency small-amplitude dynamic stiffness, and can achieve damping characteristics in different directions, so that the damping characteristics are no longer in a single direction, which is conducive to better suppressing the vibration excitation of the powertrain and improving the comfort of the vehicle.

[0004] The utility model also provides a vehicle using the hydraulic suspension device.

[0005] According to an embodiment of the first aspect of the utility model, it includes: a first connecting bracket, a second connecting bracket and a hydraulic suspension body, the hydraulic suspension body is connected between the first connecting bracket and the second connecting bracket, the hydraulic suspension body defines a plurality of damping chambers, each of the damping chambers includes a first liquid chamber and a second liquid chamber that are connected, and the first liquid chambers of at least two of the damping chambers are connected to each other.

[0006] According to the hydraulic suspension device of the embodiment of the present application, the hydraulic suspension device may include a first connecting bracket, a second connecting bracket and a hydraulic suspension body, and the hydraulic suspension body defines a plurality of damping chambers, each damping chamber includes a first liquid chamber and a second liquid chamber that are connected, and the first liquid chambers of at least two damping chambers are connected to each other, and damping liquid flows in the plurality of damping chambers. When the hydraulic suspension body is excited by the low-frequency and large-amplitude vibration of the first connecting bracket, the damping liquid can flow back and forth between the connected first liquid chamber and the second liquid chamber, and the damping liquid can also flow between the two interconnected first liquid chambers, forming energy loss, weakening the vibration amplitude, and improving the low-frequency and large-amplitude damping performance. When the hydraulic suspension body is excited by the high-frequency and small-amplitude vibration of the first connecting bracket, the damping liquid can flow back and forth between the interconnected first liquid chamber and the second liquid chamber, and the damping liquid flow absorbs the vibration energy and reduces the dynamic stiffness of the high-frequency and small-amplitude vibration. The first liquid chambers of at least two damping chambers are connected to each other, and the interconnected first liquid chambers can interact with each other to achieve damping characteristics in different directions, so that the damping characteristics are no longer single in direction. The hydraulic suspension device can better suppress the vibration excitation of the powertrain and improve the comfort of the vehicle.

[0007] According to some embodiments of the present utility model, a communication channel is formed on the hydraulic suspension body, and the two first liquid chambers that are in communication are connected via the communication channel.

[0008] According to some embodiments of the utility model, a damping plate is provided in the connecting flow channel, and the damping plate is movable along the length direction of the connecting flow channel.

[0009] According to some embodiments of the present utility model, an elastic member is provided in the communicating flow channel, and the elastic member is fixedly connected to the damping plate.

[0010] According to some embodiments of the present invention, the damping plate is spaced apart from the inner wall of the corresponding connecting flow channel.

[0011] According to some embodiments of the present invention, the first liquid chamber and the second liquid chamber of at least one of the damping chambers are arranged along a first direction, and the first liquid chamber and the second liquid chamber of at least one of the damping chambers are arranged along a second direction, and the first direction and the second direction form an angle.

[0012] According to some embodiments of the present invention, the first direction is the height direction of the hydraulic suspension device, and the second direction is the horizontal direction.

[0013] According to some embodiments of the utility model, the hydraulic suspension body includes: a main spring, a mounting seat, a plurality of flow plates and a plurality of leather cups, the main spring is connected between the mounting seat and the first connecting bracket, the mounting seat is connected between the main spring and the second connecting bracket, the first liquid chamber is formed between each of the flow plates and the main spring, the plurality of flow plates and the plurality of leather cups correspond one to one, the second liquid chamber is formed between the leather cup and the corresponding flow plate, the flow plate is formed with a flow hole, and the flow hole connects the corresponding first liquid chamber and the corresponding second liquid chamber.

[0014] According to some embodiments of the present utility model, the flow channel plate is provided with a decoupling membrane, and the corresponding first liquid chamber and the corresponding second liquid chamber are formed on both sides of the decoupling membrane.

[0015] A vehicle according to an embodiment of the second aspect of the utility model includes: the hydraulic suspension device described in the above embodiment.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic diagram of a hydraulic suspension device according to an embodiment of the present application;

[0019] Figure 2 is a side view of a hydraulic suspension device according to an embodiment of the present application;

[0020] Figure 3 yes Figure 2 Section view at AA in the figure.

[0021] Reference numerals:

[0022] Hydraulic suspension device 1,

[0023] The first connecting bracket 10,

[0024] The second connecting bracket 20,

[0025] Hydraulic suspension body 30, first avoidance hole 31, damping chamber 32, first liquid chamber 321, second liquid chamber 322, connecting flow channel 33, main spring 34, main spring inner core 341, main spring base 342, mounting seat 35, flow channel plate 36, flow hole 361, second avoidance hole 362, leather cup 37,

[0026] Damping sheet 40,

[0027] The elastic member 50,

[0028] Decoupling membrane 60 . DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] Reference below Figure 1-Figure 3 The hydraulic suspension device 1 according to the embodiment of the utility model is described. The hydraulic suspension device 1 can be installed on a vehicle. Of course, the utility model is not limited thereto. The hydraulic suspension device 1 can also be installed on other mechanical devices, for example, the hydraulic suspension device 1 can be installed on aircraft, ships and other devices. This application takes the installation of the hydraulic suspension device 1 on a vehicle as an example for description.

[0031] According to the hydraulic suspension device 1 of the first embodiment of the utility model, Figure 3 As shown, the hydraulic suspension device 1 may include: a first connecting bracket 10, a second connecting bracket 20 and a hydraulic suspension body 30, the hydraulic suspension body 30 is connected between the first connecting bracket 10 and the second connecting bracket 20, the hydraulic suspension body 30 defines a plurality of damping chambers 32, each damping chamber 32 includes a first liquid chamber 321 and a second liquid chamber 322 that are connected, and the first liquid chambers 321 of at least two damping chambers 32 are connected to each other.

[0032] It should be noted that the existing hydraulic suspension device has only one hydraulic system, the low-frequency and large-amplitude damping performance is relatively low, and the damping characteristic direction is single, and the damping characteristic can only be realized in one direction, which affects the vibration isolation performance of the vehicle and affects the comfort of the vehicle.

[0033] Based on this, the utility model proposes a hydraulic suspension device 1, such as Figure 3As shown, the hydraulic suspension device 1 may include a first connecting bracket 10, a second connecting bracket 20 and a hydraulic suspension body 30. The first connecting bracket 10 may be made of metal materials such as carbon steel and aluminum alloy. The first connecting bracket 10 may be fixedly connected to the powertrain of the vehicle. The first connecting bracket 10 may be fixedly connected to the powertrain of the vehicle by bolts, clamping, etc. The second connecting bracket 20 may be made of metal materials such as carbon steel and aluminum alloy. The second connecting bracket 20 may be fixedly connected to the vehicle body. The second connecting bracket 20 may be fixedly connected to the vehicle body by bolts, clamping, etc. The hydraulic suspension body 30 may form a first avoidance hole 31. The cross section of the first connecting bracket 10 may be a polygon. The cross section shape of the first avoidance hole 31 may be adapted to the cross section shape of the first connecting bracket 10. The cross section of the first avoidance hole 31 may also be a polygon. The first connecting bracket 10 is assembled in the first avoidance hole 31. The first connecting bracket 10 may be clamped with the first avoidance hole 31 to achieve the connection between the first connecting bracket 10 and the hydraulic suspension body 30. The hydraulic suspension body 30 can be fixed on the second connecting bracket 20 , the hydraulic suspension body 30 can be welded to the second connecting bracket 20 , or the hydraulic suspension body 30 can be integrally formed with the second connecting bracket 20 , and the hydraulic suspension body 30 is connected between the first connecting bracket 10 and the second connecting bracket 20 .

[0034] The hydraulic suspension body 30 defines a plurality of damping chambers 32, and the plurality of damping chambers 32 can be distributed at different positions of the hydraulic suspension body 30. Damping fluid flows in the plurality of damping chambers 32, and the damping fluid can consume vibration energy by using its viscosity, thereby achieving damping performance. Each damping chamber 32 includes a first liquid chamber 321 and a second liquid chamber 322 that are connected, and the damping fluid can flow back and forth between the first liquid chamber 321 and the second liquid chamber 322 that are connected, and the first liquid chambers 321 of at least two damping chambers 32 are connected to each other, and at least two first liquid chambers 321 are connected to each other so that at least two damping chambers 32 are connected to each other, forming a hydraulic system in series, thereby increasing the hydraulic damping characteristics. The plurality of first liquid chambers 321 that are connected to each other can interact with each other to achieve multi-directional damping characteristics. The first liquid chambers 321 of at least two damping chambers 32 are connected to each other, so that the damping fluid can flow between the first liquid chambers 321 that are connected to each other, and the damping fluid can consume vibration energy by using its viscosity.

[0035] In the embodiment of the present application, the powertrain of the vehicle will vibrate when it is working, and the first connecting bracket 10 is connected to the powertrain. When the hydraulic suspension body 30 is excited by the low-frequency and large-amplitude vibration of the first connecting bracket 10, the damping liquid in the first liquid chamber 321 will enter the second liquid chamber 322, and the damping liquid in the second liquid chamber 322 will enter the first liquid chamber 321. The damping liquid can flow back and forth between the connected first liquid chamber 321 and the second liquid chamber 322, and the damping liquid can also flow between the two interconnected first liquid chambers 321, forming energy loss, weakening the vibration amplitude, and improving the low-frequency and large-amplitude hydraulic damping performance. When the hydraulic suspension body 30 is excited by the high-frequency and small-amplitude vibration of the first connecting bracket 10, the damping liquid can flow back and forth between the interconnected first liquid chamber 321 and the second liquid chamber 322, and the damping liquid flow absorbs the vibration energy and reduces the dynamic stiffness of the high-frequency and small-amplitude vibration. The hydraulic suspension body 30 defines a plurality of damping chambers 32, and the first liquid chambers 321 of at least two damping chambers 32 are interconnected. The interconnected first liquid chambers 321 can interact with each other to achieve damping characteristics in different directions, so that the damping characteristics are no longer in a single direction. The hydraulic suspension device 1 can better suppress the vibration excitation of the powertrain and improve the comfort of the vehicle.

[0036] In some embodiments of the present invention, Figure 3 As shown, the hydraulic mount body 30 is formed with a communication channel 33 , and the two first liquid chambers 321 are connected to each other through the communication channel 33 .

[0037] The hydraulic suspension body 30 defines a plurality of damping chambers 32, and the first liquid chambers 321 of at least two damping chambers 32 are interconnected. The hydraulic suspension body 30 is formed with a connecting flow channel 33, and the two first liquid chambers 321 that are interconnected are connected through the connecting flow channel 33. When the hydraulic suspension body 30 is subjected to low-frequency and large-amplitude vibration excitation, the damping fluid can flow back and forth in the connecting flow channel 33, and the damping fluid reciprocates to absorb vibration energy. By providing the connecting flow channel 33, the two first liquid chambers 321 that are connected are connected through the connecting flow channel 33, so that the flow range of the damping fluid is wider, which is conducive to improving the damping performance of the hydraulic suspension device 1 under low-frequency and large-amplitude working conditions. The two first liquid chambers 321 that are interconnected can interact with each other, and the flow direction of the damping fluid in the connecting flow channel 33 is different from the flow direction of the damping fluid flowing between the first liquid chamber 321 and the second liquid chamber 322, so as to realize the damping characteristics in different directions, so that the damping characteristics are no longer single in direction.

[0038] In some embodiments of the present invention, Figure 3 As shown, a damping plate 40 is provided in the communicating flow channel 33 , and the damping plate 40 is movable along the length direction of the communicating flow channel 33 .

[0039] A damping plate 40 is provided in the connecting flow channel 33. The damping plate 40 can be made of butyl rubber, water-based damping material and other materials. The damping plate 40 can vibrate along the length direction of the connecting flow channel 33. When the hydraulic suspension body 30 is subjected to low-frequency and large-amplitude vibration excitation, the two first liquid chambers 321 that are connected to each other interact with each other, so that the damping liquid flows back and forth in the connecting flow channel 33, thereby driving the damping plate 40 to vibrate back and forth in the connecting flow channel 33. The damping plate 40 absorbs the low-frequency and large-amplitude vibration excitation energy, attenuates the vibration, and increases the hydraulic damping performance. When the hydraulic suspension body 30 is subjected to high-frequency and small-amplitude vibration excitation, the damping liquid does not have time to flow back and forth in the connecting flow channel 33, but can make the damping plate 40 vibrate slightly. The damping plate 40 absorbs the high-frequency and small-amplitude excitation energy, attenuates the vibration, and reduces the dynamic stiffness of the hydraulic suspension device 1. Therefore, the damping plate 40 is provided in the connecting flow channel 33 to improve the low-frequency and large-amplitude damping performance while reducing the high-frequency and small-amplitude dynamic stiffness.

[0040] In some embodiments of the present invention, Figure 3 As shown, an elastic member 50 is disposed in the communication flow channel 33 , and the elastic member 50 is fixedly connected to the damping plate 40 .

[0041] An elastic member 50 is provided in the communication channel 33. The elastic member 50 may be an elastic rope, a spring or other structure. In the embodiment of the present application, the elastic member 50 is described as a spring. The communication channel 33 may have a first end and a second end. One end of the elastic member 50 may be fixedly connected to the hydraulic suspension body 30. The other end of the elastic member 50 may be fixedly connected to the damping plate 40. The elastic member 50 may be fixedly connected to the hydraulic suspension body 30 by means of snap connection, bonding or other means. The elastic member 50 may be fixedly connected to the damping plate 40 by means of snap connection, bonding or other means. When the damping fluid reciprocates in the communication channel 33, the damping fluid will stretch or compress the elastic member 50. The elastic member 50 may be deformed and may drive the damping plate 40 to move together.

[0042] When the damping fluid does not flow in the communication channel 33, the elastic member 50 is in a natural state in the communication channel 33. When the damping fluid flows from the first end of the communication channel 33 to the second end of the communication channel 33, the elastic member 50 can be stretched. When the damping fluid flows from the second end of the communication channel 33 to the first end of the communication channel 33, the elastic member 50 can be compressed. The elastic member 50 changes with the flow direction of the damping fluid, and the elastic member 50 is stretched or compressed, thereby driving the damping plate 40 to vibrate back and forth in the communication channel 33. When the hydraulic suspension device 1 is subjected to low-frequency and large-amplitude vibration excitation, the damping fluid flows in the communication channel 33, and the force generated by the flow of the damping fluid can stretch or compress the elastic member 50. The damping plate 40 vibrates back and forth under the action of the elastic member 50. The damping plate 40 can absorb the low-frequency and large-amplitude vibration excitation energy, thereby improving the low-frequency and large-amplitude hydraulic damping performance.

[0043] In some embodiments of the present invention, the damping sheet 40 is spaced apart from the inner wall of the corresponding communication channel 33 .

[0044] The damping plate 40 is arranged in the connecting flow channel 33. The damping fluid flows back and forth in the connecting flow channel 33. The damping plate 40 is separated from the inner wall of the corresponding connecting flow channel 33. A gap is left between the damping plate 40 and the inside of the corresponding connecting flow channel 33 so that the damping fluid can flow smoothly, which is beneficial to maintaining the fluidity of the damping fluid, thereby ensuring the damping performance of the damping fluid and allowing the damping fluid to consume vibration energy by using its viscosity.

[0045] In some embodiments of the present invention, the first liquid chamber 321 and the second liquid chamber 322 of at least one damping chamber 32 are arranged along the first direction, and the first liquid chamber 321 and the second liquid chamber 322 of at least one damping chamber 32 are arranged along the second direction, and the first direction and the second direction form an angle.

[0046] The hydraulic suspension body 30 defines a plurality of damping chambers 32, and the plurality of damping chambers 32 can be distributed at different positions of the hydraulic suspension body 30. The first liquid chamber 321 and the second liquid chamber 322 of at least one damping chamber 32 are arranged along a first direction, and the first liquid chamber 321 and the second liquid chamber 322 of at least one damping chamber 32 are arranged along a second direction. The first direction and the second direction form an angle, which can be a right angle, an acute angle, or an obtuse angle. The first direction and the second direction are in different directions. At least two damping chambers 32 can realize damping characteristics in different directions, so that the damping characteristic direction is no longer single, so that the hydraulic suspension device 1 can improve the damping performance in different directions.

[0047] In some embodiments of the present invention, the first direction is the height direction of the hydraulic suspension device 1 , and the second direction is the horizontal direction.

[0048] In the embodiment of the present application, the present application takes the first direction as the height direction of the hydraulic suspension device 1 and the second direction as the horizontal direction as an example for explanation. The first liquid chamber 321 and the second liquid chamber 322 of at least one damping chamber 32 in the hydraulic suspension device 1 are arranged along the first direction, and the first liquid chamber 321 and the second liquid chamber 322 of at least one damping chamber 32 in the hydraulic suspension device 1 are arranged along the second direction. The first direction is the height direction of the hydraulic suspension device 1, and the second direction is the horizontal direction. When the hydraulic suspension device 1 is as Figure 3 When placing in the direction, the first direction is Figure 3 The Y direction in the second direction is Figure 2In the X direction, the first direction and the second direction form an angle, which may be a right angle. The hydraulic suspension device 1 is provided with at least one damping chamber 32 along the height direction of the hydraulic suspension device 1, which is beneficial to suppressing the vibration of the power assembly along the height direction of the hydraulic suspension device 1. The hydraulic suspension device 1 is provided with at least one damping chamber 32 along the horizontal direction, which is beneficial to suppressing the vibration in the horizontal direction during the reversal of the power assembly, thereby suppressing the vibration of the power assembly in different directions.

[0049] In some embodiments of the present invention, Figure 3 As shown, the hydraulic suspension body 30 may include: a main spring 34, a mounting seat 35, a plurality of flow channel plates 36 and a plurality of leather cups 37. The main spring 34 is connected between the mounting seat 35 and the first connecting bracket 10. The mounting seat 35 is connected between the main spring 34 and the second connecting bracket 20. A first liquid chamber 321 is formed between each flow channel plate 36 and the main spring 34. The plurality of flow channel plates 36 and the plurality of leather cups 37 correspond one to one. A second liquid chamber 322 is formed between the leather cup 37 and the corresponding flow channel plate 36. The flow channel plate 36 is formed with a flow hole 361. The flow hole 361 connects the corresponding first liquid chamber 321 and the corresponding second liquid chamber 322.

[0050] The hydraulic suspension body 30 may include a main spring 34, a mounting seat 35, multiple flow channel plates 36 and multiple leather cups 37. The main spring 34 may include a main spring core 341 and a main spring base 342. The main spring core 341 may be made of metal materials such as carbon steel, aluminum alloy, etc., the main spring base 342 may be made of rubber material, the mounting seat 35 may be made of metal materials such as carbon steel, aluminum alloy, etc., the main spring base 342 and the mounting seat 35 may be fixedly connected by vulcanization, the main spring core 341 and the first connecting bracket 10 may be connected by welding, clamping, etc., the main spring 34 is connected between the mounting seat 35 and the first connecting bracket 10, the mounting seat 35 is connected to the second connecting bracket 20, the mounting seat 35 may be connected to the second connecting bracket 20 by welding, bolting, etc., and the mounting seat 35 is connected between the main spring 34 and the second connecting bracket 20. A first liquid chamber 321 is formed between each flow channel plate 36 and the main spring 34. The flow channel plate 36 and the main spring base 342 define the first liquid chamber 321, or the flow channel plate 36 and the main spring base 342 and the mounting seat 35 define the first liquid chamber 321 together. Multiple flow channel plates 36 correspond to multiple leather cups 37 one by one, and a second liquid chamber 322 is formed between the leather cup 37 and the corresponding flow channel plate 36. The flow channel plate 36 can prevent the damping liquid from directly flowing between the first liquid chamber 321 and the second liquid chamber 322. The flow channel plate 36 is formed with a flow hole 361, and the flow hole 361 connects the corresponding first liquid chamber 321 and the corresponding second liquid chamber 322. The damping liquid can flow back and forth between the first liquid chamber 321 and the second liquid chamber 322 through the flow hole 361.

[0051] The powertrain of the vehicle will generate vibration when working. The first connecting bracket 10 is connected to the powertrain, and the main spring 34 is connected to the first connecting bracket 10. When the main spring 34 is excited by the low-frequency and large-amplitude vibration of the first connecting bracket 10, the main spring base 342 is deformed to deform the first liquid chamber 321, and the damping fluid in the first liquid chamber 321 enters the second liquid chamber 322 through the circulation hole 361, and the damping fluid in the second liquid chamber 322 enters the first liquid chamber 321 through the circulation hole 361. The damping fluid in the first liquid chamber 321 and the second liquid chamber 322 can flow back and forth through the circulation hole 361, thereby utilizing the damping characteristics of the damping fluid to absorb vibration energy, form energy loss, weaken the vibration amplitude, and improve the low-frequency and large-amplitude hydraulic damping performance.

[0052] In some embodiments of the present invention, the flow channel plate 36 is provided with a decoupling membrane 60 , and a corresponding first liquid chamber 321 and a corresponding second liquid chamber 322 are formed on both sides of the decoupling membrane 60 .

[0053] A decoupling membrane 60 is provided on the flow channel plate 36. The flow channel plate 36 can form a second avoidance hole 362. The decoupling membrane 60 is installed in the second avoidance hole 362. The second avoidance hole 362 avoids the flow hole 361. The second avoidance hole 362 penetrates the flow channel plate 36 along the thickness direction of the flow channel plate 36. An annular mounting groove is formed on the inner side wall of the second avoidance hole 362. The edge of the decoupling membrane 60 is installed in the mounting groove, so that the decoupling membrane 60 is assembled in the second avoidance hole 362. A corresponding first liquid chamber 321 and a corresponding second liquid chamber 322 are formed on both sides of the decoupling membrane 60. The decoupling membrane 60 can isolate the flow of the damping liquid between the corresponding first liquid chamber 321 and the corresponding second liquid chamber 322. The flow of the damping liquid in the first liquid chamber 321 and the second liquid chamber 322 will cause the decoupling membrane 60 to deform. The deformation of the decoupling membrane 60 can absorb vibration energy. The deformation of the decoupling membrane 60 can drive the damping liquid to flow back and forth between the first liquid chamber 321 and the second liquid chamber 322 that are interconnected, thereby reducing the dynamic stiffness of the hydraulic suspension device 1.

[0054] The powertrain of the vehicle will vibrate when it is working. The first connecting bracket 10 is connected to the powertrain, and the main spring 34 is connected to the first connecting bracket 10. When the main spring 34 is excited by the high-frequency and small-amplitude vibration of the first connecting bracket 10, the main spring base 342 is deformed, causing the first liquid chamber 321 to also be deformed, and the damping fluid in the first liquid chamber 321 flows. The damping fluid flows, thereby driving the decoupling membrane 60 to deform. The deformation of the decoupling membrane 60 can absorb the vibration energy, and the deformation of the decoupling membrane 60 can also The damping liquid in the first liquid chamber 321 or the second liquid chamber 322 is squeezed. When the decoupling membrane 60 is deformed toward the corresponding second liquid chamber 322, the decoupling membrane 60 squeezes the damping liquid in the second liquid chamber 322, so that the damping liquid in the second liquid chamber 322 flows into the first liquid chamber 321, thereby driving the damping liquid in the first liquid chamber 321 to flow into the second liquid chamber 322, so that the damping liquid can flow back and forth between the first liquid chamber 321 and the second liquid chamber 322 which are interconnected, and the damping liquid flows to absorb vibration energy. When the decoupling membrane 60 is deformed toward the corresponding first liquid chamber 321, the decoupling membrane 60 squeezes the damping liquid in the first liquid chamber 321, causing the damping liquid in the first liquid chamber 321 to flow into the second liquid chamber 322, thereby driving the damping liquid in the second liquid chamber 322 to flow into the first liquid chamber 321, thereby realizing the reciprocating flow of the damping liquid between the first liquid chamber 321 and the second liquid chamber 322 which are interconnected. The flow of the damping liquid absorbs vibration energy, forms energy loss, weakens the vibration amplitude, and reduces the dynamic stiffness of the hydraulic suspension device 1.

[0055] In the embodiment of the present application, the first liquid chambers 321 of at least two damping chambers 32 are connected through the connecting flow channel 33, and the multiple first liquid chambers 321 are connected to form a hydraulic system in series, thereby increasing the hydraulic damping characteristics. The damping fluid can flow back and forth between the first liquid chamber 321 and the second liquid chamber 322 that are connected to each other, and the damping fluid can also flow in the connecting flow channel 33, so that the flow range of the damping fluid is wider, which is conducive to improving the damping performance of the hydraulic suspension device 1 under low-frequency and large-amplitude working conditions.

[0056] When the hydraulic suspension device 1 is in a low-frequency and large-amplitude working condition, the main spring 34 is excited by the low-frequency and large-amplitude vibration of the first connecting bracket 10, the main spring base 342 is deformed, and the first liquid chamber 321 is also deformed. The damping liquid in the first liquid chamber 321 enters the second liquid chamber 322 through the flow hole 361, and the damping liquid in the second liquid chamber 322 enters the first liquid chamber 321 through the flow hole 361. The damping liquid in the first liquid chamber 321 and the second liquid chamber 322 flows back and forth through the flow hole 361, and the damping liquid flows to absorb vibration energy. In addition, the damping liquid also flows back and forth in the connecting flow channel 33, driving the damping plate 40 to vibrate back and forth in the connecting flow channel 33. The damping liquid flow is used to absorb vibration energy by utilizing the damping characteristics of the damping liquid, which is beneficial to reducing the vibration of the hydraulic suspension device 1. The damping plate 40 absorbs the low-frequency and large-amplitude vibration excitation energy and improves the low-frequency and large-amplitude hydraulic damping performance.

[0057] When the hydraulic suspension device 1 is in a high-frequency and small-amplitude working condition, the main spring 34 is excited by the high-frequency and small-amplitude vibration of the first connecting bracket 10, and the main spring base 342 is deformed, causing the first liquid chamber 321 to also be deformed, and the damping fluid in the first liquid chamber 321 flows, and the flow of the damping fluid drives the decoupling membrane 60 to deform, and the deformation of the decoupling membrane 60 can absorb vibration energy, and the deformation of the decoupling membrane 60 can drive the damping fluid to flow back and forth between the first liquid chamber 321 and the second liquid chamber 322 that are interconnected, and the damping plate 40 vibrates slightly in the connecting flow channel 33, and the damping fluid flows to absorb vibration energy, and the damping plate 40 also absorbs vibration energy when it vibrates slightly, resulting in energy loss, weakening the vibration amplitude, and reducing the high-frequency and small-amplitude dynamic stiffness of the hydraulic suspension device 1.

[0058] A vehicle according to an embodiment of the second aspect of the utility model comprises: the hydraulic suspension device 1 in the above embodiment.

[0059] According to the vehicle of the embodiment of the present application, the hydraulic suspension device 1 in the above embodiment is used to improve the low-frequency large-amplitude damping performance, reduce the high-frequency small-amplitude dynamic stiffness, and realize hydraulic performance in different directions, which is conducive to better improving the hydraulic suspension performance, better suppressing the vibration excitation of the powertrain, and improving the comfort of the vehicle.

[0060] Other structures and operations of the hydraulic suspension device 1 and the vehicle according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hydraulic suspension device (1), characterized in that: include: A first connecting bracket (10) and a second connecting bracket (20); A hydraulic suspension body (30), the hydraulic suspension body (30) being connected between the first connecting bracket (10) and the second connecting bracket (20), the hydraulic suspension body (30) defining a plurality of damping chambers (32), each of the damping chambers (32) comprising a first liquid chamber (321) and a second liquid chamber (322) being connected, and the first liquid chambers (321) of at least two of the damping chambers (32) being connected to each other.

2. The hydraulic suspension device (1) according to claim 1, characterized in that: The hydraulic mount body (30) is formed with a communication channel (33), and the two first liquid chambers (321) are in communication with each other through the communication channel (33).

3. The hydraulic mount (1) according to claim 2, characterized in that: A damping plate (40) is provided in the communicating flow channel (33), and the damping plate (40) is movable along the length direction of the communicating flow channel (33).

4. The hydraulic mount (1) according to claim 3, characterized in that: An elastic member (50) is provided in the communication flow channel (33), and the elastic member (50) is fixedly connected to the damping plate (40).

5. The hydraulic mount (1) according to claim 3, characterized in that: The damping plate (40) is spaced apart from the inner wall of the corresponding communication channel (33).

6. The hydraulic mount device (1) according to any one of claims 1 to 5, characterized in that: The first liquid chamber (321) and the second liquid chamber (322) of at least one of the damping chambers (32) are arranged along a first direction, and the first liquid chamber (321) and the second liquid chamber (322) of at least one of the damping chambers (32) are arranged along a second direction, and the first direction and the second direction form an angle.

7. The hydraulic mount (1) according to claim 6, characterized in that: The first direction is the height direction of the hydraulic suspension device (1), and the second direction is the horizontal direction.

8. The hydraulic mount device (1) according to any one of claims 2 to 5, characterized in that: The hydraulic suspension body (30) includes: a main spring (34), a mounting seat (35), a plurality of flow channel plates (36) and a plurality of leather cups (37); the main spring (34) is connected between the mounting seat (35) and the first connecting bracket (10); the mounting seat (35) is connected between the main spring (34) and the second connecting bracket (20); a first liquid chamber (321) is formed between each of the flow channel plates (36) and the main spring (34); a plurality of the flow channel plates (36) and a plurality of the leather cups (37) correspond one to one; a second liquid chamber (322) is formed between the leather cup (37) and the corresponding flow channel plate (36); a flow hole (361) is formed on the flow channel plate (36); and the flow hole (361) connects the corresponding first liquid chamber (321) and the corresponding second liquid chamber (322).

9. The hydraulic mount (1) according to claim 8, characterized in that: The flow channel plate (36) is provided with a decoupling membrane (60), and the corresponding first liquid chamber (321) and the corresponding second liquid chamber (322) are formed on both sides of the decoupling membrane (60).

10. A vehicle, characterized in that: It comprises a hydraulic suspension device (1) according to any one of claims 1 to 9.

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