A self-capturing energy giant electro-rheological fluid vibration isolator, anti-vibration and shock-absorbing equipment and its application

Through self-capture energy design and overlap area adjustment of the plate assembly, the problems of large volume and external power supply of the giant current-capture liquid isolator are solved, and a self-capture energy giant current-capture liquid isolator with self-energy, reduced volume and improved vibration isolation performance are realized. They are suitable for high-voltage, high-frequency, and heavy-load scenarios.

CN116816854BActive Publication Date: 2025-08-01SHANGHAI UNIV
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Patent Information

Application Number
CN202310769626.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-27
Publication Date
2025-08-01
Estimated Expiration
2043-06-27

AI Technical Summary

Technical Problem

The existing giant current-varying liquid vibration isolators are large in size, low in integration, and most require external power supply, which leads to difficulties in design and integration applications.

Method used

The self-capture design adopts a self-capture design, by integrating coils and plate components on the floating unit, the magnetic field generates an induced electromotive force for power supply, avoiding external power connections, and adjusting the damping force through the overlapping area of the plate components, combining with the diaphragm spring to optimize the structure, reduce volume and improve flexibility.

Benefits of technology

It realizes a self-energy vibration isolator without external power supply, reduces volume, improves integration and vibration isolation performance, is suitable for high voltage, high frequency, heavy load scenarios, and has the flexibility of adjustable damping force.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of vibration isolators, and particularly relates to a self-powered giant electro-rheological fluid vibration isolator, an anti-vibration and damping device and its application, which includes a power generation chamber, a floating unit and a second plate assembly. The power generation chamber is formed within the housing. The floating unit includes a shaft assembly, and the shaft assembly includes a floating section disposed within the power generation chamber. A coil assembly and a first plate assembly are connected to the floating section. The coil assembly can move along with the floating section to cut the magnetic field to generate an induced electromotive force. The coil assembly has a first output terminal and a second output terminal. The first output terminal is connected to the first plate assembly; the second output terminal is connected to the second plate assembly, so that an induced electromotive force can be generated between the first plate assembly and the second plate assembly, causing the giant electro-rheological fluid located between the first plate and the second plate to distort, so as to provide a corresponding damping force.
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Description

Technical Field

[0001] The present invention relates to the technical field of vibration isolators, and particularly to a self-energy-capturing giant electro-rheological fluid vibration isolator, an anti-vibration and shock-absorbing device and its application. Background Art

[0002] Giant electro-rheological fluid is a new type of voltage-controlled intelligent material. This material exhibits a special rheological effect, that is, when no electric field is applied to the electro-rheological fluid, the particles inside the electro-rheological fluid are randomly distributed, and macroscopically it behaves as a Newtonian fluid; when an electric field is applied to the liquid, within a few milliseconds, the particles inside the liquid are polarized and arranged in an orderly manner, and macroscopically it behaves that the stiffness and damping characteristics of the material can be regulated with the voltage. Therefore, it can be widely used in industry and life to construct vibration isolators to reduce mechanical and building vibrations. Compared with magneto-rheological fluid, giant electro-rheological fluid only requires two plates with a potential difference to distort the giant electro-rheological fluid. Therefore, using giant electro-rheological fluid to make an energy-harvesting vibration isolator and through a special plate design, the energy-harvesting part and the damping part can be coupled together, improving the integration degree of the vibration isolator and reducing the volume.

[0003] Since the electric field between the electrodes decays exponentially as the distance between the electrodes increases, in order to ensure sufficient electric field strength inside the damper and maintain a relatively constant damping force, a set of electrodes, or even multiple sets of array-type electrode configurations are mostly used inside. For example, a multi-layer extrusion-type giant electro-rheological fluid damper disclosed in a Chinese invention patent with the document number CN 107687494 A adopts a form in which positive electrodes and negative electrodes are arranged alternately. At the same time, high-voltage electricity is used to supply power to the positive and negative electrodes respectively. Thus, a sufficient electric field can be formed between the positive and negative electrodes. However, for such giant electro-rheological fluid dampers, due to their densely arranged electrodes, the volume of the damper will increase rapidly. At the same time, an additional high-voltage power supply needs to be set, further increasing its volume, bringing great challenges to the design and integrated application of such dampers. Summary of the Invention

[0004] To solve the above technical problems, the purpose of the present invention is to provide a self-energy-capturing giant electro-rheological fluid vibration isolator, an anti-vibration and shock-absorbing device and its application. The self-energy-capturing giant electro-rheological fluid vibration isolator and the anti-vibration and shock-absorbing device do not require external power supply, and can effectively solve the defect of large volume existing in the vibration isolators in the prior art.

[0005] To achieve the above technical effects, the present invention adopts the following technical solutions:

[0006] A self-energy-capturing giant electro-rheological fluid vibration isolator, including a housing, further including:

[0007] An energy-capturing chamber, formed inside the housing and capable of accommodating giant electro-rheological fluid, and there is a magnetic field inside the energy-capturing chamber;

[0008] A floating unit, including a shaft assembly, the shaft assembly at least including a floating section disposed in the energy harvesting chamber and capable of being excited by an external force to move downward relative to the housing, a coil assembly and a first plate assembly are connected to the floating section, the coil assembly moves with the floating section to cut the magnetic field to generate an induced electromotive force, the coil assembly has a first output end and a second output end, and the first output end is connected to the first plate assembly;

[0009] A second plate assembly, disposed in the energy harvesting chamber and fixedly connected to the housing, and electrically connected between the second plates to the second output end;

[0010] The first plate assembly and the second plate assembly can at least partially overlap in the longitudinal projection direction to have an overlapping area, and the giant electrorheological fluid located in the overlapping area is distorted based on the electric field generated between the first plate assembly and the second plate assembly to provide a corresponding damping force.

[0011] Preferably, the magnetic field is provided by a part of the housing or by the second plate assembly.

[0012] Further, the coil assembly includes multiple groups of induction coils, and the multiple groups of induction coils are all fixedly connected to the floating section, so that when the floating section moves up and down relative to the housing, the induction coils can be driven to cut the magnetic field to generate an induced electromotive force, thereby supplying power to the first plate assembly and the second plate assembly to avoid the connection of an external power supply.

[0013] Further, the shaft assembly further includes an actuating section disposed at the top end of the floating section, the bottom end of the actuating section is directly or indirectly fixedly connected to the floating section, the top end of the actuating section penetrates through the housing and extends to the outside of the housing to transmit external vibration, the actuating section has a telescopic freedom degree relative to the housing, the telescopic freedom degree enables the actuating section to slide up and down relative to the housing under the excitation of an external force, and when the actuating section is excited by an external force, the floating section can be driven to move up and down in the housing.

[0014] Further, it further includes a self-resetting component, and the self-resetting component is used to provide a driving force opposite to the direction of the external force excitation for the shaft assembly, so as to realize automatic resetting after the shaft assembly moves downward under the excitation of an external force.

[0015] Preferably, the self-resetting component is a diaphragm spring to further reduce the volume of the self-energy harvesting giant electrorheological fluid vibration isolator.

[0016] Based on the above technical solutions, the present application further provides the following specific setting methods for the plates, including:

[0017] The first electrode assembly includes multiple groups of first electrodes that are parallel to each other. The second electrode assembly includes multiple groups of second electrodes that are parallel to each other. The first electrodes and the second electrodes are alternately distributed along the axis direction of the shaft assembly, and there is a rheological gap between the first electrodes and the second electrodes for accommodating the giant electro-rheological fluid. The first electrodes and the second electrodes at least partially overlap in the longitudinal projection direction. The giant electro-rheological fluid between the overlapping areas can be distorted by the electric field excitation between the first electrodes and the second electrodes, so as to achieve the effect of vibration damping and anti-vibration.

[0018] Preferably, the shaft assembly is arranged at the center of the energy harvesting chamber. The first electrode at least includes a first sector plate. The inner side surface of the first sector plate is fixedly connected to the shaft assembly, and the outer end surface of the first sector plate is in clearance fit with the inner wall of the housing. The second electrode at least includes a second sector plate. The outer side surface of the second sector plate is fixedly connected to the inner wall of the housing, and the inner side surface of the second sector plate is in clearance fit with the outer side surface of the shaft assembly. This structural design can make the overall structure of the energy harvesting chamber compact. Preferably, the cross-section of the energy harvesting chamber is circular.

[0019] Or:

[0020] The first electrode assembly at least includes a continuous first spiral blade, and the second electrode assembly at least includes a continuous second spiral blade. The first spiral blade and the second spiral blade have an overlapping area in the longitudinal projection direction. Preferably, the cross-section of the energy harvesting chamber is circular.

[0021] In addition, to facilitate the adjustment of the damping force and improve its flexibility, the size of the overlapping area between the first electrode and the second electrode in the longitudinal projection direction can be adjusted.

[0022] Furthermore, the adjustment of the size of the overlapping area is achieved by rotating the shaft assembly relative to the housing, so that the damping force can be adjusted by adjusting the size of the overlapping area. Preferably, the shaft assembly also has a rotational degree of freedom relative to the housing, and the rotational degree of freedom enables the shaft assembly to drive the first electrode assembly to rotate relative to the housing to adjust the overlapping area between the first electrode assembly and the second electrode assembly in the longitudinal projection direction.

[0023] In a second aspect, the present invention also provides an application of the self-energy-harvesting giant electro-rheological fluid vibration isolator provided in the first aspect in anti-vibration and vibration damping equipment.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] In a first aspect, the present invention provides a self - energy - harvesting giant electrorheological fluid vibration isolator, which solves the deficiencies of traditional giant electrorheological fluid vibration isolators and magnetorheological vibration isolators, such as large volume, low integration, and the need for external power supply in most cases. It adopts a self - power - supply design, enabling the kinetic energy that was originally consumed and dissipated as heat to supply energy to the system, which can effectively improve the vibration isolation performance. At the same time, in this self - energy - harvesting giant electrorheological fluid vibration isolator, both the first electrode assembly and the coil assembly are integrated on the shaft assembly. This not only reduces the overall volume of the vibration isolator but also, through optimized magnetic field and coil designs, converts the captured external vibration source energy into voltage during the operation of the device and supplies energy to the electrodes, eliminating the need for an external power supply and making system integration more convenient. Compared with traditional dampers, since the coils and magnets in the self - energy - harvesting giant electrorheological fluid vibration isolator provided by the present invention can withstand high voltages without being damaged, the self - energy - harvesting giant electrorheological fluid vibration isolator can be applied to high - voltage, high - frequency, and heavy - load functional applications.

[0026] On the other hand, for the deficiencies of existing vibration isolators where the damping force magnitude cannot be adjusted, in the self - energy - harvesting giant electrorheological fluid vibration isolator provided by the present invention, by adjusting the overlapping area between the first electrode assembly and the second electrode assembly, the damping characteristics and stiffness characteristics are indirectly adjusted. Therefore, it has better scenario adaptability and flexibility. In addition, due to the setting of the diaphragm spring, the working reliability of the self - energy - harvesting giant electrorheological fluid vibration isolator is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. is a schematic diagram of the overall structure of a self - energy - harvesting giant electrorheological fluid vibration isolator provided in Embodiments 1 - 2 of the present invention;

[0028] Figure 2 FIG. is a schematic diagram of the first exploded structure of a self - energy - harvesting giant electrorheological fluid vibration isolator provided in Embodiments 1 - 2 of the present invention;

[0029] Figure 3 FIG. is a schematic diagram of the second exploded structure of a self - energy - harvesting giant electrorheological fluid vibration isolator provided in Embodiments 1 - 2 of the present invention;

[0030] Figure 4 FIG. is a schematic diagram of the exploded structure of a self - energy - harvesting giant electrorheological fluid vibration isolator provided in Embodiments 3 - 4 of the present invention;

[0031] Reference numerals are: 10, housing; 21, floating section; 211, induction coil; 22, actuating section; 231, first diaphragm spring; 232, second diaphragm spring; 24, first electrode; 241, first sector plate; 25, second electrode; 251, second sector plate; 261, first spiral blade; 262, second spiral blade. DETAILED DESCRIPTION OF THE INVENTION

[0032] The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, so they are only examples and cannot be used to limit the protection scope of the present invention. Those skilled in the art should understand that the present invention can be implemented without some specific details. In other embodiments, methods, means, equipment and steps well known to those skilled in the art are not described in detail in order to highlight the gist of the present invention.

[0033] Unless otherwise specified, in the present invention, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "x direction", "y direction", "z direction", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the orientation or positional relationship in the present invention are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood by combining the accompanying drawings and according to the specific situation.

[0034] Embodiment 1

[0035] Please refer to Figures 1 to 3, this embodiment provides a self-powered giant magnetorheological fluid vibration isolator. The giant magnetorheological fluid vibration isolator includes a housing 10 and a floating unit. An energy harvesting chamber is formed inside the housing 10, and there is a magnetic field inside the energy harvesting chamber, which is used to accommodate the giant magnetorheological fluid. Specifically, the floating unit includes a shaft assembly, and the shaft assembly includes a floating section 21 and an actuating section 22. Among them, the floating section 21 is arranged in the energy harvesting chamber and fixedly connected with a coil assembly and a first electrode plate assembly. There are multiple groups of the coil assembly and they are equidistantly distributed along the floating section 21. In addition, a second electrode plate assembly is fixedly connected to the housing 10. The coil assembly has a first output end and a second output end. The first output end is connected to the first electrode plate assembly, and the second output end is connected to the second electrode plate assembly. The magnetic field in the energy harvesting chamber is provided by the second electrode plate assembly. The coil assembly includes multiple groups of induction coils 211, and multiple groups of the induction coils 211 are fixedly connected to the floating section 21 and are equidistantly distributed along the axial direction of the floating section 21. Thus, when the floating section 21 moves up and down relative to the housing 10, it can drive the induction coils 211 to cut the magnetic field to generate an induced electromotive force, so as to supply power to the first electrode plate assembly and the second electrode plate assembly, so that the giant magnetorheological fluid between the first electrode plate assembly and the second electrode plate assembly is distorted under the action of the electric field and acts on the first electrode plate assembly in the opposite direction, thereby achieving the effect of vibration reduction and anti-vibration. This design avoids the connection of an external power supply and can achieve the purpose of reducing the volume of the self-powered giant magnetorheological fluid vibration isolator.

[0036] In this embodiment, to facilitate receiving external vibration and driving the floating section 21 to move up and down, the bottom end of the actuating section 22 of the shaft assembly is directly or indirectly fixedly connected to the floating section 21. The top end of the actuating section 22 penetrates through the housing 10 and extends to the outside of the housing 10 so as to receive and transmit external vibration. The actuating section 22 has a degree of freedom of expansion and contraction relative to the housing 10. The degree of freedom of expansion and contraction enables the actuating section 22 to slide up and down relative to the housing 10 under the excitation of an external force and drive the floating section 21 to move up and down in the energy harvesting chamber, thereby generating an electric field between the first electrode plate assembly and the second electrode plate assembly. The first electrode plate assembly and the second electrode plate assembly can at least partially overlap in the longitudinal projection direction and have an overlapping area. The giant magnetorheological fluid located between the overlapping areas of the first electrode plate 24 and the second electrode plate 25 is distorted under the excitation of the electric field to act on the first electrode plate assembly and provide a corresponding damping force for the first electrode plate assembly, achieving the effect of dissipating external vibration energy.

[0037] In this embodiment, in order to enable the shaft assembly to automatically reset after being forced to move downward, a first diaphragm spring 231 is provided between the bottom end of the floating section 21 and the housing 10, and a second diaphragm spring 232 is provided between the top end of the floating section and the housing 10. The first diaphragm spring 231 and the second diaphragm spring 232 respectively apply upward and downward restoring forces to the floating unit, so that the floating unit can automatically reset after being subjected to external vibration. The arrangement of the first diaphragm spring 231 and the second diaphragm spring 232 greatly reduces the volume of the self-capturing energy giant electrorheological fluid vibration isolator. Moreover, since the first diaphragm spring 231 and the second diaphragm spring 232 are not prone to deformation at high frequencies compared with traditional helical springs and can effectively reduce mechanical deformation caused by heat, they are very suitable for the high-pressure, high-frequency, and heavy-load application scenarios of such giant electrorheological fluid dampers.

[0038] The working principle of a self-capturing energy giant electrorheological fluid vibration isolator provided in this embodiment is as follows: Under the action of an external excitation, the shaft assembly drives the first electrode plate assembly and the coil assembly to move relative to the second electrode plate assembly. At this time, the coil assembly cuts the magnetic field to generate an induced electromotive force. Since the first output end and the second output end of the coil assembly are electrically connected to the first electrode plate assembly and the second electrode plate assembly respectively, the first electrode plate assembly and the second electrode plate assembly can generate an electric field. Under the action of this electric field, the viscosity characteristic of the giant electrorheological fluid is enhanced, so as to generate a damping force between the first electrode plate assembly and the second electrode plate assembly to suppress vibration. When the external excitation increases, a correspondingly larger induced electromotive force will be generated, and at the same time, a larger damping force will also be generated, achieving a closed-loop regulation.

[0039] In addition, to further compress the volume of the housing, the cross-section of the energy capture chamber is configured to be circular. The first electrode plate assembly includes multiple groups of first electrode plates 24 that are parallel to each other, and the second electrode plate assembly includes multiple groups of second electrode plates 25 that are parallel to each other. The first electrode plates 24 and the second electrode plates 25 are alternately distributed along the axis direction of the floating section 21, and there is a rheological gap for accommodating the giant electrorheological fluid between the first electrode plates 24 and the second electrode plates 25.

[0040] In this embodiment, the first electrode plate 24 includes two relatively arranged first sector plates 241. The inner side surface of the first sector plate 241 is fixedly connected to the shaft assembly, and the outer end surface of the first sector plate 241 is in clearance fit with the inner wall of the housing 10. The second electrode plate 25 includes two relatively arranged second sector plates 251. The outer side surface of the second sector plate 251 is fixedly connected to the inner wall of the housing 10, and the inner side surface of the second sector plate 251 is in clearance fit with the outer side surface of the shaft assembly. This structural design can make the overall structure of the energy capture chamber compact and greatly reduce the overall volume of the self-capturing energy giant electrorheological fluid vibration isolator.

[0041] Embodiment 2

[0042] Please refer to Figures 1 to 3 , to solve the defect that the damping force of the giant electro-rheological fluid vibration isolator in the existing technology cannot be adjusted, this embodiment further provides a self-excited energy-capturing giant electro-rheological fluid vibration isolator with adjustable damping force on the basis of Embodiment 1. The damping force is adjusted by adjusting the overlapping area of the first electrode plate 24 and the second electrode plate 25 in the longitudinal projection direction. Specifically:

[0043] The actuating section 22 of the shaft assembly is rotatable relative to the housing 10, so that the entire shaft assembly has a rotational degree of freedom relative to the housing 10. When the shaft assembly rotates, all the first electrode plates 24 on the shaft assembly can be driven to rotate relative to the second electrode plate 25, so that the overlapping area of the first electrode plate 24 and the second electrode plate 25 changes. Correspondingly, the damping force that can be provided by the giant electro-rheological fluid located between the first electrode plate 24 and the second electrode plate 25 increases or decreases correspondingly. Therefore, the self-excited energy-capturing giant electro-rheological fluid vibration isolator is convenient for adjusting the damping force, and its flexibility is greatly improved.

[0044] It should be noted that the actuating section 22 of the floating unit is rotatably connected to the housing 10. Since the rotational connection is a prior art, it will not be elaborated here. In addition, in some other embodiments of the present invention, a driving assembly can be further provided to drive the actuating section 22 to rotate relative to the housing 10, or a locking structure can be provided on the housing 10 to lock the position of the actuating section 22 after the actuating section 22 rotates relative to the housing 10. The above improvements do not deviate from the inventive concept of the present invention and should be covered by the protection scope of this application.

[0045] Embodiment 3

[0046] Please refer to Figure 4 , based on the above Embodiment 1, this application further provides a self-excited energy-capturing giant electro-rheological fluid vibration isolator. The difference between this self-excited energy-capturing giant electro-rheological fluid vibration isolator and the self-excited energy-capturing giant electro-rheological fluid vibration isolator provided in Embodiment 1 lies in the different electrode plate designs. Specifically:

[0047] In this embodiment, the first electrode plate assembly includes a continuous first spiral blade 261. The coil assembly is located outside the first spiral blade 261. The first spiral blade 261 is fixedly connected to the shaft assembly through a connecting rod, so that the first spiral blade 261 can move up and down with the shaft assembly. The second electrode plate assembly includes at least a continuous second spiral blade 262. The second spiral blade 262 is parallel to the second spiral blade 262 and the outer end surface of the second spiral blade 262 can be fixedly connected to the inner wall of the housing 10. At the same time, the magnetic field in the energy-capturing chamber is provided by the second spiral blade 262.

[0048] In this embodiment, there is a rheological gap between the first helical blade 261 and the second helical blade 262 for accommodating the giant electro-rheological fluid. The first output end and the second output end of the coil assembly are electrically connected to the first helical blade 261 and the second helical blade 262 respectively. Therefore, when the shaft assembly drives the first helical blade 261 and the coil assembly to move up and down, an electric field is generated between the first helical blade 261 and the second helical blade 262, and the giant electro-rheological fluid in the rheological gap is distorted to provide a corresponding damping force.

[0049] Embodiment 4

[0050] Please refer to Figure 4 , for facilitating the adjustment of the damping force to improve its flexibility, on the basis of Embodiment 3, this embodiment further provides a self-capturing energy giant electro-rheological fluid vibration isolator with adjustable damping force magnitude, which adjusts the damping force by adjusting the overlapping area of the first helical blade 261 and the second helical blade 262 in the longitudinal projection direction. Specifically:

[0051] In this embodiment, the actuating section 22 of the shaft assembly is rotatable relative to the housing 10, so that the entire shaft assembly has a rotational degree of freedom relative to the housing 10. When the shaft assembly rotates, it can drive the first helical blade 261 on the shaft assembly to rotate relative to the second helical blade 262 to adjust the staggering angle between the first helical blade 261 and the second helical blade 262, thereby changing the overlapping area size of the first electrode plate 24 and the second electrode plate 25. Correspondingly, the damping force that the giant electro-rheological fluid located between the first electrode plate 24 and the second electrode plate 25 can provide increases or decreases correspondingly.

[0052] It should be noted that the actuating section 22 of the floating unit is rotationally connected to the housing 10. Since the specific connection method of the rotational connection is a prior art, it will not be elaborated here.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A self-capturing energy giant electro-rheological fluid vibration isolator, comprising a housing (10), characterized in that, It further includes: An energy harvesting chamber formed inside the housing (10) for accommodating giant electro-rheological fluid and having a magnetic field therein; A floating unit including a shaft assembly, the shaft assembly at least including a floating section (21) disposed inside the energy harvesting chamber and capable of moving downward relative to the housing (10) under an external force excitation. A coil assembly and a first plate assembly are connected to the floating section (21). The coil assembly moves with the floating section (21) to generate an induced electromotive force. The coil assembly has a first output terminal and a second output terminal, and the first output terminal is connected to the first plate assembly; A second plate assembly disposed inside the energy harvesting chamber and fixedly connected to the housing (10), and the second plates (25) are electrically connected to the second output terminal; The first plate assembly and the second plate assembly are at least partially overlappable in the longitudinal projection direction; The first plate assembly includes multiple groups of parallel first plates (24), the second plate assembly includes multiple groups of parallel second plates (25), the first plates (24) and the second plates (25) are alternately distributed along the axis direction of the shaft assembly, and there is a rheological gap for accommodating giant electro-rheological fluid between the first plates (24) and the second plates (25). The first plates (24) and the second plates (25) are at least partially overlappable in the longitudinal projection direction; The cross-section of the energy harvesting chamber is circular, the shaft assembly is disposed at the center of the energy harvesting chamber, the first plate (24) at least includes a first sector plate (241), the inner side surface of the first sector plate (241) is fixedly connected to the shaft assembly, and the outer end surface of the first sector plate (241) is in clearance fit with the inner wall of the housing (10); the second plate (25) at least includes a second sector plate (251), the outer side surface of the second sector plate (251) is fixedly connected to the inner wall of the housing (10), and the inner side surface of the second sector plate (251) is in clearance fit with the outer side surface of the shaft assembly.

2. The self-capturing energy giant electro-rheological fluid vibration isolator according to claim 1, wherein: The coil assembly includes multiple groups of induction coils (211), and multiple groups of the induction coils (211) are all fixedly connected to the floating section (21).

3. The self-capturing energy giant electro-rheological fluid vibration isolator according to claim 1, characterized in that: The shaft assembly further includes an actuating section (22) disposed at the top end of the floating section (21). The bottom end of the actuating section (22) is fixedly connected to the floating section (21), the top end of the actuating section (22) penetrates through the housing (10) and extends to the outside of the housing (10). The actuating section (22) has a telescopic freedom degree relative to the housing (10), and the telescopic freedom degree enables the actuating section (22) to slide up and down relative to the housing (10) under an external force excitation.

4. The self-capturing energy giant electro-rheological fluid vibration isolator according to claim 1, characterized in that: It further includes a self-resetting assembly for providing a driving force opposite to the direction of the external force excitation for the shaft assembly.

5. The self-capturing energy giant electro-rheological fluid vibration isolator according to claim 1, characterized in that: The shaft assembly further has a rotational freedom degree relative to the housing (10), and the rotational freedom degree enables the shaft assembly to drive the first plate assembly to rotate relative to the housing (10) to adjust the overlapping area of the first plate assembly and the second plate assembly in the longitudinal projection direction.

6. Application of a self-capturing energy giant electrorheological fluid vibration isolator according to any one of claims 1 to 5 in an anti-vibration and shock-absorbing device.

7. An anti-vibration and shock-absorbing method, characterized in that: Dissipate vibration energy by using the self-capturing energy giant electrorheological fluid vibration isolator according to any one of claims 1 to 5 or the anti-vibration and shock-absorbing device according to claim 6.

Citation Information

Patent Citations

  • Multilayer squeezing type giant electro-rheological fluid damper

    CN107687494A

  • Magnetic spring giant electrorheological fluid damping structure and vibration isolator

    CN116146652A