A giant electrorheological fluid damping device with closed-loop energy regeneration

Abstract

The present invention discloses a giant electrorheological fluid damping device with closed-loop energy regeneration, which relates to the field of damper technology. The device comprises: an integrated coil pole plate vertically fixed to an upper base, an integrated magnet pole plate vertically fixed to a base; an adjustable bracket vertically connected to the upper base and the base, respectively; the upper base and the base move relative to each other along a direction parallel to the adjustable bracket; the integrated magnet pole plates include a first set of pole plates and a second set of pole plates; the integrated coil pole plates are disposed between the first set of pole plates and the second set of pole plates; a giant electrorheological fluid is disposed between the pole plates; and a voltage output circuit is connected to the coil for converting the induced electromotive force generated by the coil cutting the magnetic field lines into a DC high voltage to power the pole plates of the integrated magnet and the integrated coil. The present invention enables a giant electrorheological fluid-based damper to operate without the need for an external power supply and reduces the size of the giant electrorheological fluid-based damper.

Description

Technical Field

[0001] The present invention relates to the technical field of dampers, in particular to a giant electrorheological fluid damping device with closed-loop energy regeneration. Background Art

[0002] Electrorheological fluid (ERF) is a new type of voltage-controlled smart material that exhibits a unique rheological effect. When no electric field is applied, the particles within the ERF are randomly distributed, resulting in a macroscopically Newtonian fluid. However, when an electric field is applied, the particles become polarized and orderly within milliseconds, resulting in a material with voltage-controlled stiffness and damping properties. This allows for widespread use in industry and everyday life, such as vibration dampers to reduce vibration in machinery and buildings. Current dampers based on ERF leverage the fluid's inherent physical properties, such as flexible damping force control, low drive voltage, and simple structure. However, the material's characteristics result in relatively weak damping properties, hindering their further application. Improvements in material properties have led to the development of giant ERF, which offers greater voltage tolerance and can operate at high drive voltages. Dampers based on this material can deliver several times the damping force of traditional liquid-pneumatic dampers of the same volume, finding widespread application in applications where traditional dampers are inadequate.

[0003] Currently, there are three damper-based solutions: (1) using a multi-layer annular plate configuration, which improves the damping force at the same volume, but still requires external power supply; (2) using a helical spring plate design of an extruded giant electrorheological fluid damper, which improves the volume of the damper, but still requires external power supply; (3) using a self-powered damper composed of electrorheological fluid and piezoelectric ceramics, which realizes the self-supply of damper energy. However, the damper uses electrorheological fluid as the basic material, and neither the rheological material nor the piezoelectric ceramics can withstand high pressure, so this design cannot be replaced by giant electrorheological fluid. Therefore, there is an urgent need for a smaller giant electrorheological fluid-based damper that does not require external power supply. Summary of the Invention

[0004] The purpose of the present invention is to provide a giant electrorheological fluid damping device with closed-loop energy regeneration, which can realize that the giant electrorheological fluid-based damper does not require external power supply during operation and reduces the volume of the giant electrorheological fluid-based damper.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A giant electrorheological fluid damping device for closed-loop energy regeneration comprises: an integrated magnet plate, an integrated coil plate, an upper base, a base, an adjustable bracket, and a voltage output circuit; the integrated coil plate is vertically fixed to the upper base, and the integrated magnet plate is vertically fixed to the base; the adjustable bracket is vertically connected to the upper base and the base, respectively; the upper base and the base are capable of relative movement parallel to the adjustable bracket.

[0007] The pole plates of the integrated magnet include a first group of pole plates and a second group of pole plates; the first group of pole plates includes a first pole plate and a second pole plate; the second group of pole plates includes a third pole plate and a fourth pole plate; a first group of permanent magnets is disposed between the first pole plate and the second pole plate; a second group of permanent magnets is disposed between the third pole plate and the fourth pole plate; the first group of permanent magnets and the second group of permanent magnets are disposed in the same position and have opposite polarities;

[0008] The integrated coil includes a fifth plate and a sixth plate; a coil is disposed between the fifth plate and the sixth plate; the integrated coil is disposed between the first set of plates and the second set of plates; and giant electrorheological fluid is disposed in gaps between the integrated coil and the first set of plates, between the integrated coil and the second set of plates, and between the first set of plates and the second set of plates.

[0009] The voltage output circuit is connected to the coil and is used to convert the induced electromotive force generated by the coil cutting the magnetic field lines between the first group of permanent magnets and the second group of permanent magnets into a DC high voltage, and the DC high voltage is used to power the pole plates of the integrated magnet and the pole plates of the integrated coil.

[0010] Optionally, the voltage output circuit includes a rectifier circuit, a DC-DC circuit and a boost circuit connected in sequence.

[0011] Optionally, the boost circuit includes a light emitting diode, a transistor, a first resistor, a second resistor, a primary coil, a feedback coil, a secondary coil, a first diode, a second diode, a third diode, a first capacitor, a second capacitor, a third capacitor and a current limiting resistor;

[0012] The positive electrode of the light-emitting diode is connected to the output end of the DC-DC circuit, the source of the transistor, and one end of the primary coil respectively; the negative electrode of the light-emitting diode is connected to one end of the first resistor; the other end of the first resistor is grounded, and the other end of the first resistor is also connected to the output end of the DC-DC circuit and one end of the feedback coil respectively; the drain of the transistor is connected to the other end of the feedback coil; the gate of the transistor is connected to one end of the second resistor; the other end of the second resistor is connected to the other end of the primary coil; one end of the secondary coil is connected to the gate of the first diode respectively. The positive electrode is connected to one end of the first capacitor; the negative electrode of the first diode is respectively connected to the positive electrode of the second diode, one end of the second capacitor and one end of the third capacitor; the negative electrode of the second diode is respectively connected to the other end of the first capacitor and the positive electrode of the third diode; the negative electrode of the third diode is respectively connected to the other end of the second capacitor and one end of the current-limiting resistor; the other end of the secondary coil is respectively connected to the other end of the third capacitor and the other end of the current-limiting resistor; the negative electrode lead wire of the third diode and the lead wire of the other end of the secondary coil serve as the DC high-voltage output end.

[0013] Optionally, the device further includes a container box; the base is arranged at the bottom of the container box and fixedly connected to the container box; and the giant electrorheological fluid is arranged in the container box.

[0014] Optionally, the adjustable bracket includes:

[0015] A bearing, one end of which passes vertically through the upper base and the other end of which is vertically fixed to the base;

[0016] The spring is sleeved on the bearing.

[0017] Optionally, the adjustable bracket includes at least two bearings; each bearing is sleeved with at least one spring.

[0018] Optionally, the device also includes an upper guide shaft and a lower guide shaft; the upper guide shaft is fixed to one end of the upper base; one end of the bearing passes through the upper base and the upper guide shaft in sequence; the lower guide shaft is fixed to the base; the other end of the bearing passes through the lower guide shaft and is fixed to the base.

[0019] Optionally, the first group of permanent magnets includes a first positive magnet and a first negative magnet; the second group of permanent magnets includes a second positive magnet and a second negative magnet; the first positive magnet and the second negative magnet are arranged opposite each other; and the first negative magnet and the second positive magnet are arranged opposite each other.

[0020] Optionally, the coil is a rectangular coil.

[0021] Optionally, the center of the coil, the center of the first group of permanent magnets, and the center of the second group of permanent magnets are on a straight line, and the straight line is perpendicular to the plane where the pole plates of the integrated magnet are located.

[0022] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0023] The present invention provides a giant electrorheological fluid damping device for closed-loop energy regeneration, comprising: pole plates of an integrated magnet, pole plates of an integrated coil, an upper base, a base, an adjustable bracket, and a voltage output circuit; the pole plates of the integrated coil are vertically fixed to the upper base, and the pole plates of the integrated magnet are vertically fixed to the base; the adjustable bracket is vertically connected to the upper base and the base respectively; the upper base and the base can move relative to each other along a direction parallel to the adjustable bracket; the pole plates of the integrated magnet include a first group of pole plates and a second group of pole plates; the first group of pole plates include a first pole plate and a second pole plate; the second group of pole plates include a third pole plate and a fourth pole plate; a first group of permanent magnets is arranged between the first pole plate and the second pole plate; a second group of permanent magnets is arranged between the third pole plate and the fourth pole plate Permanent magnets; the first group of permanent magnets and the second group of permanent magnets are arranged in the same position and have opposite polarities; the pole plates of the integrated coil include a fifth pole plate and a sixth pole plate; a coil is arranged between the fifth pole plate and the sixth pole plate; the pole plates of the integrated coil are arranged between the first group of pole plates and the second group of pole plates; giant electrorheological fluid is arranged in the gaps between the pole plates of the integrated coil and the first group of pole plates, between the pole plates of the integrated coil and the second group of pole plates, and between the first group of pole plates and the second group of pole plates; a voltage output circuit is connected to the coil and is used to convert the induced electromotive force generated by the coil cutting the magnetic field lines between the first group of permanent magnets and the second group of permanent magnets into a DC high voltage, which is used to power the pole plates of the integrated magnet and the pole plates of the integrated coil. The present invention integrates the magnet and the coil in the pole plate, optimizes the magnetic field and coil design, and during operation, converts the captured external vibration source energy into voltage, generates high voltage through the boost circuit to provide energy to the pole plates, and achieves the purpose of integrated energy supply and vibration isolation. Because the coils and magnets can withstand high pressure without being damaged, they can withstand the high pressure of giant electrorheological fluid; the integrated plate design for energy supply and energy regeneration can significantly reduce the size of the damping device; when the damper is working normally, no external energy supply is required, avoiding additional energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1A schematic structural diagram of the giant electrorheological fluid damping device with closed-loop energy regeneration provided by the present invention;

[0026] Figure 2 Schematic diagram of the rectifier circuit provided by the present invention;

[0027] Figure 3 A schematic diagram of a DC-DC circuit provided by the present invention;

[0028] Figure 4 A schematic diagram of a boost circuit provided by the present invention;

[0029] Figure 5 A schematic diagram of the magnetic field direction of the giant electrorheological fluid damping device for closed-loop energy regeneration provided by the present invention;

[0030] Figure 6 A schematic diagram showing the positional relationship between the first group of permanent magnets and the second group of permanent magnets in the giant electrorheological fluid damping device for closed-loop energy regeneration provided by the present invention;

[0031] Figure 7 This is a schematic diagram of the working principle of the giant electrorheological fluid damping device with closed-loop energy regeneration provided by the present invention.

[0032] Explanation of symbols:

[0033] Lower guide shaft - 1, bearing - 2, container box - 3, giant electrorheological fluid cavity - 4, upper base - 5, upper guide shaft - 6, upper pole plate - 7, coil - 8, first negative magnet - 9, first positive magnet - 10, second positive magnet - 11, second negative magnet - 12, lower pole plate - 13, base - 14, fifth pole plate - 15, sixth pole plate - 16, first pole plate - 17, second pole plate - 18, third pole plate - 19, fourth pole plate - 20, spring - 21, coil lead - 22, output voltage U0 terminal - 23, light-emitting diode - 24, first resistor - 25, transistor - 26, Second resistor - 27, first diode - 28, second diode - 29, third diode - 30, first capacitor - 31, second capacitor - 32, third capacitor - 33, current limiting resistor - 34, voltage input terminal of the integrated magnet plate and the integrated coil plate - 35, primary coil - 36, secondary coil - 37, feedback coil - 38, negative pole permanent magnet No. 1 - 39, negative pole permanent magnet No. 2 - 40, positive pole permanent magnet No. 3 - 41, positive pole permanent magnet No. 4 - 42, positive pole permanent magnet No. 5 - 43, positive pole permanent magnet No. 6 - 44, negative pole permanent magnet No. 7 - 45, negative pole permanent magnet No. 8 - 46. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] The purpose of the present invention is to provide a giant electrorheological fluid damping device with closed-loop energy regeneration, which can realize that the giant electrorheological fluid-based damper does not require external power supply during operation and reduces the volume of the giant electrorheological fluid-based damper.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1 As shown, the present invention provides a giant electrorheological fluid damping device for closed-loop energy regeneration, comprising: pole plates of an integrated magnet, pole plates of an integrated coil, an upper base 5, a base 14, an adjustable bracket, and a voltage output circuit; the pole plates of the integrated coil are vertically fixed to the upper base 5, and the pole plates of the integrated magnet are vertically fixed to the base 14; the adjustable bracket is vertically connected to the upper base 5 and the base 14, respectively; the upper base 5 and the base 14 move relative to each other in a direction parallel to the adjustable bracket.

[0038] The adjustable bracket includes a bearing 2 and a spring 21; one end of the bearing 2 vertically passes through the upper base 5, and the other end of the bearing 2 is vertically fixed to the base 14; the spring 21 is sleeved on the bearing 2. Furthermore, the adjustable bracket includes at least two bearings 2; each bearing 2 is sleeved with at least one spring 21.

[0039] The integrated magnet comprises a first set of plates and a second set of plates; the first set of plates comprises a first plate 17 and a second plate 18; the second set of plates comprises a third plate 19 and a fourth plate 20; a first set of permanent magnets is disposed between the first plate 17 and the second plate 18; a second set of permanent magnets is disposed between the third plate 19 and the fourth plate 20; the first set of permanent magnets and the second set of permanent magnets are disposed in the same position and have opposite polarities; specifically, the first set of permanent magnets comprises a first positive magnet 10 and a first negative magnet 9; the second set of permanent magnets comprises a second positive magnet 11 and a second negative magnet 12; the first positive magnet 10 and the second negative magnet 12 are disposed opposite each other; and the first negative magnet 9 and the second positive magnet 11 are disposed opposite each other. Furthermore, the plates fixed to the upper base 5 are collectively referred to as upper plates 7, and the plates fixed to the base 14 are collectively referred to as lower plates 13. The upper electrode plate 7 is fixedly connected to the upper base 5 , and the lower electrode plate 13 is fixedly connected to the base 14 to form an electrode plate array structure.

[0040] The integrated coil's plates include a fifth plate 15 and a sixth plate 16; a coil 8 is disposed between the fifth plate 15 and the sixth plate 16; the integrated coil's plates are disposed between the first and second sets of plates; and a giant electrorheological fluid is disposed in the gaps between the integrated coil's plates and the first set of plates, between the integrated coil's plates and the second set of plates, and between the first and second sets of plates. Specifically, the gaps between the integrated coil's plates and the first set of plates, between the integrated coil's plates and the second set of plates, and between the first and second sets of plates form giant electrorheological fluid cavities 4; and the centers of the coil 8, the first set of permanent magnets, and the second set of permanent magnets are aligned, and the line is perpendicular to the plane of the integrated magnet's plates. Furthermore, the coil 8 is a rectangular coil. When the integrated coil has multiple plates, there are also multiple coils 8, and the number of the integrated coil's plates is the same as the number of coils 8, while the number of the integrated magnet's plates is one more than the number of the integrated coil's plates. The plurality of coils 8 are connected to each other via coil lead wires 22 .

[0041] The voltage output circuit is connected to the coil 8 and is used to convert the induced electromotive force generated by the coil 8 cutting the magnetic field lines between the first group of permanent magnets and the second group of permanent magnets into a DC high voltage, and the DC high voltage is used to power the pole plates of the integrated magnet and the pole plates of the integrated coil.

[0042] The device also includes a container box 3; the base 14 is disposed at the bottom of the container box 3 and fixedly connected to the container box 3; the giant electrorheological fluid is disposed in the container box 3. Two lower guide shafts 1 are mounted on the bottom of the container box 3, and two upper guide shafts 6 are mounted on the upper base 5 for mounting the bearings 2.

[0043] The device also includes an upper guide shaft 6 and a lower guide shaft 1; the upper guide shaft 6 is fixed to one end of the upper base 5; one end of the bearing 2 passes through the upper base 5 and the upper guide shaft 6 in sequence; the lower guide shaft 1 is fixed on the base 14; the other end of the bearing 2 passes through the lower guide shaft 1 and is fixed to the base 14.

[0044] Among them, such as Figure 2 and Figure 3 As shown, the voltage output circuit includes a rectifier circuit, a DC-DC circuit, and a boost circuit connected in sequence. The rectifier circuit is a bridge rectifier circuit, which is used to output the induced electromotive force U0 generated by the coil 8 to U1 through the rectifier circuit. The DC-DC circuit is used to take the output U1 of the rectifier circuit as input and output a DC voltage U2 through the DC-DC circuit. The output U2 of the DC-DC circuit is used as input to generate a high voltage through the boost circuit to power the upper plate 7 and the lower plate 13. In other words, the output end of the boost circuit is the voltage input end 35 of the plate of the integrated magnet and the plate of the integrated coil. It can be seen from this that the output voltage U0 end 23 is the output end of the induced electromotive force U0. Furthermore, the output voltage U0 end 23 is the output end of the coil lead 22.

[0045] Specifically, such as Figure 4 As shown, the boost circuit includes a light emitting diode 24, a transistor 26, a first resistor 25, a second resistor 27, a primary coil 36, a feedback coil 38, a secondary coil 37, a first diode 28, a second diode 29, a third diode 30, a first capacitor 31, a second capacitor 32, a third capacitor 33 and a current limiting resistor 34.

[0046] The anode of the light-emitting diode 24 is connected to the output end of the DC-DC circuit, the source of the transistor 26, and one end of the primary coil 36, respectively; the cathode of the light-emitting diode 24 is connected to one end of the first resistor 25; the other end of the first resistor 25 is grounded, and the other end of the first resistor 25 is also connected to the output end of the DC-DC circuit and one end of the feedback coil 38, respectively; the drain of the transistor 26 is connected to the other end of the feedback coil 38; the gate of the transistor 26 is connected to one end of the second resistor 27; the other end of the second resistor 27 is connected to the other end of the primary coil 36; one end of the secondary coil 37 is connected to the gate of the first diode 28, respectively. The positive electrode is connected to one end of the first capacitor 31; the negative electrode of the first diode 28 is respectively connected to the positive electrode of the second diode 29, one end of the second capacitor 32 and one end of the third capacitor 33; the negative electrode of the second diode 29 is respectively connected to the other end of the first capacitor 31 and the positive electrode of the third diode 30; the negative electrode of the third diode 30 is respectively connected to the other end of the second capacitor 32 and one end of the current-limiting resistor 34; the other end of the secondary coil 37 is respectively connected to the other end of the third capacitor 33 and the other end of the current-limiting resistor 34; the negative electrode lead wire of the third diode 30 and the lead wire of the other end of the secondary coil 37 serve as the DC high-voltage output end.

[0047] The boost circuit operates as follows: Input voltage U2 is DC (obtained through the previous rectification and DC conversion circuits). U2 is initially amplified using a transformer and the principle of self-oscillation. The amplification factor is determined by setting the ratio of the turns of the primary coil 36 to the turns of the secondary coil 37, and self-oscillation is generated by the addition of a feedback coil 38. This initially amplified voltage U2 serves as the power source to the right of the dotted line in the circuit. The circuit to the right of the dotted line is a triple voltage amplifier circuit consisting of transistor 26, capacitor, and current-limiting resistor 34, which amplifies the voltage twice and supplies it to the plate.

[0048] like Figure 1 、 Figure 5 and Figure 6 As shown, Figure 5is the direction of the magnetic field between the first set of pole plates and the second set of pole plates; taking the case where eight permanent magnets are fixed to the first set of pole plates and the second set of pole plates as an example, the eight permanent magnets are divided into four groups, wherein the first group of permanent magnets includes the first negative pole permanent magnet 39 and the second negative pole permanent magnet 40, and the second group of permanent magnets includes the third positive pole permanent magnet 41 and the fourth positive pole permanent magnet 42. The first group of permanent magnets and the second group of permanent magnets are arranged in the first set of pole plates, and the first group of permanent magnets is the first negative pole magnet 9, and the second group of permanent magnets is the first positive pole magnet 10; the third group of permanent magnets includes the fifth positive pole permanent magnet 4 3 and the sixth positive pole permanent magnet 44, the fourth group of permanent magnets includes the seventh negative pole permanent magnet 45 and the eighth negative pole permanent magnet 46, the third and fourth groups of permanent magnets are arranged in the second set of pole plates, and the third group of permanent magnets is the second positive pole magnet 11, and the fourth group of permanent magnets is the second negative pole magnet 12; the first and second groups of permanent magnets are arranged with opposite magnetization directions, the second and third groups of permanent magnets are arranged with opposite magnetization directions, the third and fourth groups of permanent magnets are arranged with opposite magnetization directions, and the fourth and first groups of permanent magnets are arranged with opposite magnetization directions. This permanent magnet arrangement cleverly utilizes the alternating changes in the magnetization directions of the magnets, increases the variation in the spatial magnetic field, and improves the energy conversion efficiency of the rectangular coil.

[0049] The initial positional relationship between the first and second sets of pole plates and the integrated coil's pole plates is such that coil 8 is initially positioned between the permanent magnet groups. Specifically, the upper half of the rectangular coil is centered between the first and third sets of permanent magnets, while the lower half is centered between the second and fourth sets of permanent magnets. This design maximizes cutting efficiency and the maximum vertical effective cutting stroke.

[0050] like Figure 7 As shown, the working principle of the closed-loop energy regeneration giant electrorheological fluid damping device provided by the present invention is as follows:

[0051] The upper base 5 is fixed horizontally on the external device (the device that needs vibration reduction). When the external device vibrates up and down, the upper base 5 will move up and down with the upper plate group fixed to it. The base 14 and the container box 3 are fixed on a fixed reference surface (such as the ground) to keep the base 14 and the container box 3 from moving relative to each other, so that the upper plate 7 will move relative to the lower plate 13, so that the plate of the integrated coil will cut the magnetic field to generate induced electromotive force. The induced electromotive force is collected by the wire and passed through a series of boost circuits such as Figure 2 、 34. The voltage is amplified, and the positive and negative electrodes of the amplified voltage are connected to upper and lower plates 13, respectively. The distance between the upper and lower plates 13 is designed to be 0.6. A giant electrorheological fluid is placed between the upper and lower plates 13. Due to the large voltage difference between the upper and lower plates 13, the viscosity of the giant electrorheological fluid increases, increasing the motion damping of the upper plate 7, thereby achieving the vibration reduction effect. Under the influence of a small vibration source, the specially placed magnets will generate eddy currents on the substrate enclosing the coil 8, thus generating eddy current damping to achieve the vibration reduction effect.

[0052] The closed-loop energy regeneration giant electrorheological fluid damping device provided by the present invention has the following characteristics:

[0053] (1) The magnets are integrated in the pole plates fixed to the base plate. The magnets arranged closely horizontally in each pole plate adopt a double-layer magnet reverse magnetization design. In this way, the magnetic lines of force between the pole plates of two adjacent integrated magnets are parallel to each other from one pole plate to the other pole plate, which helps to improve the horizontal magnetic field strength in space and improve the efficiency of the coil cutting the magnetic lines of force to generate energy during vibration.

[0054] (2) This design can be flexibly expanded laterally to install more integrated magnet pole plates and integrated coil pole plates to increase the damping force, and the internal magnetic field characteristics of the original damping device will not be affected during the installation process.

[0055] (3) The longitudinal magnetization directions of the magnets in the pole plates of the integrated magnets also alternate with each other, which helps to form a sudden change in magnetic field at the intersection of two adjacent magnets in the longitudinal direction, thereby increasing the energy conversion efficiency of the coil passing through this area.

[0056] (4) The magnet is made of neodymium and the coil is made of metal, both of which can withstand high voltage. Therefore, the power supply voltage of the two plates can be freely selected and designed.

[0057] (5) The magnet, pole plate and coil are all conductors. The relative motion between them will produce eddy current effect, thereby enhancing the damping effect.

[0058] (6) A DC-DC voltage regulator circuit is used to stabilize and convert the energy output by the coil, and an oscillation circuit is used to boost the voltage to power the damping device, thus achieving closed-loop energy regeneration. When the vibration is weak, the viscous damping of the giant electrorheological fluid itself and the eddy current between the plates are used to suppress the vibration; for strong vibrations such as resonance, the damping device is activated, and the damping force is greatly increased, effectively suppressing the vibration without the need for human intervention, which is flexible and adaptable.

[0059] Compared with traditional giant electrorheological fluid dampers, the closed-loop energy regeneration giant electrorheological fluid damping device provided by the present invention has the following advantages:

[0060] Traditional giant electrorheological fluid (GERF) dampers require an external high-voltage driver to change their damping characteristics during operation. As industrial production places increasingly stringent demands on damper size, miniaturization has become a key development direction for GERF dampers. Some GERF dampers achieve significant improvements in size through clever design, such as using leaf spring-type plates. This eliminates the need for additional stiffness components, but still requires an external power supply. The present invention utilizes an integrated multi-plate configuration, integrating coils and magnets within the plates. This further reduces the damper's size by converting absorbed external vibration energy into voltage to power the damper. To optimize power supply design, some dampers utilize an integrated electrorheological fluid (ERF) and piezoelectric ceramic configuration. However, since neither piezoelectric ceramics nor ERF can withstand high voltages and cannot be integrated with the plates, additional space is required to accommodate the piezoelectric ceramic. Furthermore, using ERF as the base material makes it difficult to provide strong damping. Therefore, the present invention utilizes magnets and coils as the power supply, with GERF as the base material. Because the magnets and coils integrated in the pole plates can withstand high voltage, and the giant electrorheological fluid has obvious damping characteristics under high pressure, the intelligent damper exhibits characteristics such as high integration and high output.

[0061] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0062] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A giant electrorheological fluid damping device with closed-loop energy regeneration, characterized in that: include: An integrated magnet plate, an integrated coil plate, an upper base, a base, and a voltage output circuit; the integrated coil plate is vertically fixed to the upper base, and the integrated magnet plate is vertically fixed to the base; the upper base and the base move relative to each other in a vertical direction; The pole plates of the integrated magnet include a first set of pole plates and a second set of pole plates; the first set of pole plates includes a first pole plate and a second pole plate; the second set of pole plates includes a third pole plate and a fourth pole plate; a first set of permanent magnets is disposed between the first pole plate and the second pole plate; a second set of permanent magnets is disposed between the third pole plate and the fourth pole plate; The integrated coil includes a fifth plate and a sixth plate; a coil is disposed between the fifth plate and the sixth plate; the integrated coil is disposed between the first set of plates and the second set of plates; and giant electrorheological fluid is disposed in gaps between the integrated coil and the first set of plates, between the integrated coil and the second set of plates, and between the first set of plates and the second set of plates. The voltage output circuit is connected to the coil and is used to convert the induced electromotive force generated by the coil cutting the magnetic field lines between the first group of permanent magnets and the second group of permanent magnets into a DC high voltage, and the DC high voltage is used to power the pole plates of the integrated magnet and the pole plates of the integrated coil.

2. The giant electrorheological fluid damping device for closed-loop energy regeneration according to claim 1, characterized in that: The voltage output circuit includes a rectifier circuit, a DC-DC circuit and a boost circuit connected in sequence.

3. The giant electrorheological fluid damping device for closed-loop energy regeneration according to claim 2, characterized in that: The boost circuit includes a light emitting diode, a transistor, a first resistor, a second resistor, a primary coil, a feedback coil, a secondary coil, a first diode, a second diode, a third diode, a first capacitor, a second capacitor, a third capacitor and a current limiting resistor; The positive electrode of the light-emitting diode is connected to the output end of the DC-DC circuit, the source of the transistor, and one end of the primary coil respectively; the negative electrode of the light-emitting diode is connected to one end of the first resistor; the other end of the first resistor is grounded, and the other end of the first resistor is also connected to the output end of the DC-DC circuit and one end of the feedback coil respectively; the drain of the transistor is connected to the other end of the feedback coil; the gate of the transistor is connected to one end of the second resistor; the other end of the second resistor is connected to the other end of the primary coil; one end of the secondary coil is connected to the gate of the first diode respectively. The positive electrode is connected to one end of the first capacitor; the negative electrode of the first diode is respectively connected to the positive electrode of the second diode, one end of the second capacitor and one end of the third capacitor; the negative electrode of the second diode is respectively connected to the other end of the first capacitor and the positive electrode of the third diode; the negative electrode of the third diode is respectively connected to the other end of the second capacitor and one end of the current-limiting resistor; the other end of the secondary coil is respectively connected to the other end of the third capacitor and the other end of the current-limiting resistor; the negative electrode lead wire of the third diode and the lead wire of the other end of the secondary coil serve as the DC high-voltage output end.

4. The giant electrorheological fluid damping device for closed-loop energy regeneration according to claim 1, characterized in that: The device also includes a container box and an adjustable bracket; The base is arranged at the bottom of the container box and is fixedly connected to the container box; the giant electrorheological fluid is arranged in the container box; The adjustable bracket is vertically connected to the upper base and the base respectively; the upper base and the base move relative to each other along a direction parallel to the adjustable bracket.

5. The giant electrorheological fluid damping device for closed-loop energy regeneration according to claim 4, characterized in that: The adjustable bracket comprises: A bearing, one end of which passes vertically through the upper base and the other end of which is vertically fixed to the base; The spring is sleeved on the bearing.

6. The giant electrorheological fluid damping device for closed-loop energy regeneration according to claim 5, characterized in that: The adjustable bracket includes at least two bearings; each bearing is sleeved with at least one spring.

7. The giant electrorheological fluid damping device for closed-loop energy regeneration according to claim 5, characterized in that: The device also includes an upper guide shaft and a lower guide shaft; the upper guide shaft is fixed to one end of the upper base; one end of the bearing passes through the upper base and the upper guide shaft in sequence; the lower guide shaft is fixed to the base; the other end of the bearing passes through the lower guide shaft and is fixed to the base.

8. The giant electrorheological fluid damping device for closed-loop energy regeneration according to claim 1, characterized in that: The first group of permanent magnets includes a first positive magnet and a first negative magnet; the second group of permanent magnets includes a second positive magnet and a second negative magnet; the first positive magnet and the second negative magnet are arranged opposite each other; the first negative magnet and the second positive magnet are arranged opposite each other.

9. The giant electrorheological fluid damping device for closed-loop energy regeneration according to claim 1, characterized in that: The coil is a rectangular coil.

10. The giant electrorheological fluid damping device for closed-loop energy regeneration according to claim 1, characterized in that: The center of the coil, the center of the first group of permanent magnets, and the center of the second group of permanent magnets are on a straight line, and the straight line is perpendicular to the plane where the pole plates of the integrated magnet are located; the first group of permanent magnets and the second group of permanent magnets are set in the same position and have opposite polarities.

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