Explosion-proof and vibration-proof seat based on magnetic suspension technology

Abstract

The invention discloses an anti-explosion and anti-vibration seat based on a magnetic suspension technology. The anti-explosion and anti-vibration seat comprises an electromagnetic damper, an acceleration sensor, a stroke sensor, a control system and a power module. In the operation process of the anti-vibration equipment, the electromagnetic vibration damper generates flexible electromagnetic force for counteracting road bumping, and vibration damping is achieved; by using the electromagnetic shock absorber, the smoothness of normal driving is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of anti-blast shock, in particular to an anti-blast shock seat based on magnetic suspension technology. BACKGROUND

[0002] Heavy military combat equipment such as special vehicles and helicopters will be affected by road bumps, airflow impact, and even explosions during driving, resulting in vibration. The vibration is transmitted to the driver or passenger through the equipment shell and the seat. The continuous vibration will make the passenger's muscles tense for a long time, causing the passenger's spine, pelvic bone and other parts to be damaged to varying degrees, and causing diseases such as intervertebral disc wear and tear, protrusion, and lower back pain, sciatica. The severe vibration caused by the explosion will directly endanger the life safety of the passenger. Therefore, it is crucial to develop an anti-blast shock seat for military combat equipment such as special vehicles and helicopters. The traditional vibration reduction method has the disadvantages of non-adjustable damping coefficient, small adjustment range, slow damping speed, and cannot actively and quickly provide corresponding damping effect for different driving environments.

[0003] The existing damping seats mainly include mechanical spring damping seats, hydraulic damping seats, airbag damping seats, and composite damping seats. Among them, the mechanical spring damping absorbs and buffers the vibration energy through the elastic deformation of the spring, and the damping coefficient is not adjustable; the hydraulic damping reduces the vibration energy through the flow of hydraulic oil in the damper, but the damping speed is slow and cannot cope with the high-speed changing bump environment; the airbag damping buffers the vibration through the automatic inflation and deflation of the airbag, which often needs an external air source and has a large volume and cannot be actively adjusted; the composite damping combines multiple damping technologies together, which is not advantageous in reliability, cost, and maintenance. The above damping seats have various problems such as slow damping speed, non-adjustable damping coefficient, small adjustment range, and large volume of damper, and cannot adapt to complex driving environments.

[0004] Therefore, it is urgent to develop a damping method with actively adjustable damping coefficient, fast damping speed, and large adjustment range to meet the demand of military equipment such as special vehicles and helicopters for driving smoothness and ensure the life safety of passengers in critical moments. SUMMARY

[0005] The purpose of the present application is to provide an anti-blast shock seat based on magnetic suspension technology, which comprises an electromagnetic damper, an acceleration sensor, a travel sensor, a control system, and a power module.

[0006] The acceleration sensor is attached to the anti-blast shock seat for monitoring the acceleration a of the anti-blast shock seat and transmitting to the control system.

[0007] The travel sensor is attached to the anti-vibration seat to monitor the movement direction of the anti-vibration seat and transmit to the control system.

[0008] The control system controls the current size and direction input by the power module to the electromagnetic damper coil according to the acceleration a and movement direction of the anti-vibration seat.

[0009] The electromagnetic damper is arranged in the middle of the anti-vibration seat.

[0010] The electromagnetic damper includes one energized coil, two induction coils, n pairs of oppositely charged permanent magnets arranged at intervals, a metal cavity, and a soft iron ring.

[0011] The energized coil is electrically connected to the power module.

[0012] The magnetic flux direction of the n pairs of permanent magnets is axial.

[0013] A soft iron ring for uniform magnetic field is arranged between the two adjacent permanent magnet pairs.

[0014] The i-th permanent magnet pair includes two oppositely charged permanent magnets, denoted as permanent magnet i1 and permanent magnet i2. Permanent magnet i2 is arranged opposite to permanent magnet (i+)1 of the (i+1)-th permanent magnet pair, and has the same polarity. i=1,2,…,n-1.

[0015] The induction coils are respectively located on both sides of the energized coil.

[0016] The energized coil and the induction coil both surround the permanent magnet pair.

[0017] The energized coil, the induction coil, and the permanent magnet pair are all arranged inside the metal cavity.

[0018] When no explosion shock occurs, the electromagnetic damper generates a flexible electromagnetic force to offset the road bumps and achieve damping.

[0019] Further, the working mode of the electromagnetic damper includes a motor mode and a generator mode.

[0020] When the power module supplies power to the energized coil of the electromagnetic damper, the up-and-down movement of the permanent magnet is controlled by controlling the current to achieve damping, and the electromagnetic damper works in the motor mode.

[0021] When the permanent magnet vibrates following the road environment, the induction coil of the electromagnetic damper cuts the magnetic field to generate an induced electromotive force to generate electricity, and at this time the electromagnetic damper works in the generator mode.

[0022] Further, the electromagnetic damper works in the motor mode, and generates flexible electromagnetic force to offset the road bump according to the current size and direction input by the power module. Meanwhile, the eddy current induced by the metal cavity outer wall of the electromagnetic damper provides damping force in the opposite direction of the vibration, and generates damping effect on the vibration.

[0023] Further, the electromagnetic damper works in the generator mode, and the induction coil cuts the magnetic field to generate induced electromotive force, converts the mechanical energy generated by the vibration of the anti-vibration device into electrical energy, and stores the electrical energy in the power module, so as to realize energy recovery.

[0024] Further, the power module is a super capacitor.

[0025] Further, the current size input by the power module to the electromagnetic damper coil is positively correlated with the acceleration size.

[0026] Further, the magnetic flux compression damping structure is further included.

[0027] When the explosion impact occurs, the induction coil of the magnetic flux compression damping structure induces electromotive force to reach the power generation threshold, the seat is detached, the magnetic flux between the same-polarity permanent magnets is compressed instantaneously, the induction coil generates induced electromotive force, and the eddy current is formed. According to the Lenz law, the direction of the eddy current resists the change of the magnetic flux, so as to generate the reaction force to offset the explosion impact.

[0028] Further, when the explosion impact does not occur, the pulse impact acceleration received by the explosion-proof vibration seat is less than 10g.

[0029] When the explosion impact occurs, the pulse impact acceleration received by the explosion-proof vibration seat is greater than or equal to 10g. g is the gravitational acceleration.

[0030] Further, the magnetic flux compression damping structure is arranged at the bottom of the explosion-proof vibration seat.

[0031] The magnetic flux compression damping structure includes an induction coil, same-polarity permanent magnets and a metal cavity.

[0032] The same-polarity permanent magnets are arranged at opposite intervals.

[0033] The induction coil is located between the same-polarity permanent magnets.

[0034] The induction coil and the same-polarity permanent magnets are arranged inside the metal cavity.

[0035] Further, when the explosion impact occurs, the magnetic flux compression damping structure compresses the magnetic flux, the induction coil cuts the magnetic field to generate induced electromotive force, and the induced electromotive force is converted into electrical energy, the electrical energy converted by the magnetic flux compression damping structure is stored in the power module, so as to supply energy to the energized coil of the electromagnetic damper.

[0036] The technical effects of this invention are undeniable, and its beneficial effects are as follows:

[0037] (1) The explosion-proof seat of the present invention proposes a brand-new vibration reduction structure and uses a magnetic levitation structure to ensure the smoothness of normal driving.

[0038] (2) The magnetic levitation structure designed in this invention achieves active control and energy recovery through innovative magnet arrangement and coil winding. The electromagnetic damping force is actively adjustable, with a large adjustment range and fast response speed. Energy recovery converts the mechanical energy of vibration into electrical energy, which can be used for electromagnetic power generation and achieves self-powering to a certain extent.

[0039] (3) The explosion-proof vibration seat designed in this invention has been widely used in military vehicles, military aircraft, naval vessels, battlefield ambulances and other scenarios. At the same time, it also has broad application prospects in low-altitude aircraft such as flying cars, fixed-wing aircraft and helicopters.

[0040] In summary, the explosion-proof vibration seat developed in this invention has a magnetic levitation structure and a magnetic flux compression structure. The magnetic levitation structure is used to reduce vibration when the road vibration acceleration is less than 10g, ensuring smooth driving when there is no explosion. When the road vibration acceleration is greater than or equal to 10g, the power generation threshold of the electromagnetic vibration damper in the magnetic levitation structure is reached, the seat falls off, compresses the magnetic flux compression structure at the bottom, and generates a large reaction force to offset the explosion impact, thus achieving explosion energy absorption. Attached Figure Description

[0041] Figure 1 The seat structure is designed to prevent blasting.

[0042] Figure 2 This is a schematic diagram of the overall vibration reduction principle;

[0043] Figure 3 For the flexible electromagnetic force adjustment system and eddy current damping system of the anti-knock seat;

[0044] Figure 4 The basic principle of magnetic levitation structure;

[0045] Figure 5 This is the basic structure of a magnetic levitation vibration damper;

[0046] In the diagram, 1 is an induction coil, 2 is a pair of permanent magnets of opposite polarities, 3 is an energized coil, 4 is a soft iron ring, 5 is an acceleration sensor, and 6 is an electromagnetic vibration damper. Detailed Implementation

[0047] The present invention will be further described below with reference to embodiments, but it should not be construed that the scope of the present invention is limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and common practices in the art without departing from the above-described technical concept of the present invention should be included within the scope of protection of the present invention.

[0048] Example 1:

[0049] See Figures 1 to 4 An explosion-proof vibration seat based on magnetic levitation technology includes an electromagnetic vibration damper, an acceleration sensor 7, a stroke sensor, a control system, and a power module.

[0050] The acceleration sensor 7 is attached to the explosion-proof vibration seat to monitor the acceleration 'a' of the explosion-proof vibration seat and transmit it to the control system.

[0051] The travel sensor is attached to the explosion-proof vibration seat to monitor the direction of movement of the explosion-proof vibration seat and transmit the data to the control system.

[0052] The control system controls the magnitude and direction of the current input from the power module to the electromagnetic damper coil based on the acceleration 'a' and direction of movement of the explosion-proof vibration seat.

[0053] The electromagnetic vibration damper is located in the middle of the explosion-proof seat.

[0054] The electromagnetic vibration damper includes one energized coil 3, two induction coils 1, n pairs of permanent magnets of opposite polarities arranged at intervals 2, a metal cavity, and a soft iron ring 4.

[0055] The energized coil is electrically connected to the power module.

[0056] The magnetic flux direction of n pairs of permanent magnets is axial.

[0057] A soft iron ring 4 is placed between two adjacent permanent magnet pairs to ensure a uniform magnetic field.

[0058] The i-th permanent magnet pair consists of two attached permanent magnets of opposite polarities, denoted as permanent magnet i1 and permanent magnet i2. Permanent magnet i2 is arranged with a gap relative to permanent magnet i+11 of the (i+1)-th permanent magnet pair, and they have the same polarity. i = 1, 2, ..., n-1.

[0059] The induction coils are located on both sides of the energized coil.

[0060] Both the energized coil 3 and the induction coil 1 surround the permanent magnet pair.

[0061] The energized coil, induction coil, and permanent magnet are all arranged inside the metal cavity.

[0062] In the absence of an explosive impact, the electromagnetic vibration damper generates a flexible electromagnetic force to counteract road bumps, thereby achieving vibration reduction.

[0063] Example 2:

[0064] An explosion-proof vibration seat based on magnetic levitation technology, with the same technical content as in Embodiment 1, further wherein the working mode of the electromagnetic vibration damper includes electric motor mode and generator mode.

[0065] When the power module supplies power to the coil of the electromagnetic vibration damper, and the permanent magnet moves up and down to reduce vibration by controlling the current, the electromagnetic vibration damper operates in motor mode.

[0066] When the permanent magnet vibrates in response to the road environment, the induction coil of the electromagnetic vibration damper cuts the magnetic field to generate an induced electromotive force and produce electricity. At this time, the electromagnetic vibration damper works in generator mode.

[0067] Example 3:

[0068] An explosion-proof vibration seat based on magnetic levitation technology, with the same technical content as any one of embodiments 1-2, further wherein, when the electromagnetic vibration damper operates in motor mode, it generates a flexible electromagnetic force to counteract road bumps based on the magnitude and direction of the current input from the power module. Simultaneously, the eddy currents induced on the outer wall of the metal cavity of the electromagnetic vibration damper provide a damping force opposite to the vibration direction, thus damping the vibration.

[0069] Example 4:

[0070] An explosion-proof vibration seat based on magnetic levitation technology, with the same technical content as any one of embodiments 1-3, further wherein when the electromagnetic vibration damper operates in generator mode, the induction coil cuts the magnetic field to generate an induced electromotive force, converting the mechanical energy generated by the vibration of the vibration damping equipment into electrical energy, and storing it in the power module to realize energy recovery.

[0071] Example 5:

[0072] An explosion-proof vibration seat based on magnetic levitation technology, with the same technical content as any one of embodiments 1-4, further wherein the power module is a supercapacitor.

[0073] Example 6:

[0074] An explosion-proof vibration seat based on magnetic levitation technology, with the same technical content as any one of embodiments 1-5, further wherein the magnitude of the current input by the power module to the electromagnetic damper coil is positively correlated with the magnitude of the acceleration.

[0075] Example 7:

[0076] An explosion-proof vibration seat based on magnetic levitation technology, with the same technical content as any one of embodiments 1-6, further includes a magnetic flux compression damping structure.

[0077] When an explosion occurs, the induced electromotive force in the induction coil of the magnetic flux compression damping structure reaches the power generation threshold, causing the seat to detach. This instantaneously compresses the magnetic flux between like-polarity permanent magnets, inducing an electromotive force in the induction coil and forming eddy currents. According to Lenz's law, the direction of the eddy currents opposes the change in magnetic flux, thereby generating a reaction force that counteracts the explosion impact.

[0078] Example 8:

[0079] An explosion-proof vibration seat based on magnetic levitation technology, with the same technical content as any one of embodiments 1-7, further wherein "no explosion impact" means that the pulse impact acceleration received by the explosion-proof vibration seat is less than 10g.

[0080] An explosive impact occurs when the pulse impact acceleration experienced by the explosion-proof vibration seat is greater than or equal to 10g. g is the acceleration due to gravity.

[0081] Example 9:

[0082] An explosion-proof vibration seat based on magnetic levitation technology, with the same technical content as any one of embodiments 1-8, further wherein the magnetic flux compression damping structure is arranged at the bottom of the explosion-proof vibration seat.

[0083] The flux compression damping structure includes an induction coil 5, a permanent magnet of the same polarity 6, and a metal cavity.

[0084] Six permanent magnets of the same polarity are arranged at relative intervals.

[0085] The induction coil 5 is located between permanent magnets 6 of the same polarity.

[0086] The induction coil 5 and the permanent magnet 6 of the same polarity are both arranged inside the metal cavity.

[0087] Example 10:

[0088] An explosion-proof vibration seat based on magnetic levitation technology, with the same technical content as any one of embodiments 1-9, further wherein, when an explosion impact occurs, the magnetic flux compression damping structure compresses the magnetic flux, the induction coil cuts the magnetic field to generate an induced electromotive force, and converts the induced electromotive force into electrical energy. The electrical energy converted by the magnetic flux compression damping structure is stored in the power supply module, thereby supplying energy to the energized coil 3 of the electromagnetic vibration damper.

[0089] Example 11:

[0090] An explosion-proof vibration seat based on magnetic levitation technology, the details of which are as follows:

[0091] Electromagnetic vibration damping seats can achieve active vibration reduction, meeting the life-saving needs of military equipment such as tanks and armored vehicles. The basic structure of an electromagnetic vibration damping seat is as follows: Figure 1 As shown.

[0092] The electromagnetic vibration damping seat (an electromagnetic vibration damper consisting of a permanent magnet and an energized coil) developed in this study can achieve active vibration reduction.

[0093] 1. Overall Vibration Reduction Principle Design of Electromagnetic Vibration Damping Seat

[0094] When no explosive impact occurs (acceleration pulse within 10g), the electromagnetic vibration damper is responsible for the seat's vibration reduction function. The electromagnetic vibration damper operates simultaneously in motor mode and generator mode. The energized coil and its corresponding permanent magnet pair operate in motor mode, while the induction coil and its corresponding permanent magnet pair operate in generator mode. In motor mode, the specific operation involves adjusting the magnitude and direction of the coil current to provide a flexible electromagnetic force to counteract road bumps. Eddy currents induced in the metal outer wall further dampen the vibration. In generator mode, when the seat vibrates, the electromagnetic vibration damper's induction coil cuts the magnetic field lines of the permanent magnets, generating an induced electromotive force. The damper converts the mechanical energy of the vibration into electrical energy, which is stored in a supercapacitor, achieving energy recovery.

[0095] 2. Flexible electromagnetic force adjustment system and eddy current damping system of the shock-absorbing seat

[0096] Unlike traditional shock-absorbing seats, the anti-vibration seat in this patent can actively adjust the electromagnetic force. An acceleration sensor detects the actual road surface conditions, and a travel sensor detects the actual travel of the shock absorber. The system then issues commands to precisely control the magnitude and direction of the current input to the shock absorber coil, causing the electromagnetic shock absorber to generate a larger damping force completely opposite to the direction of the bump, thus counteracting the severe vibration of the shock absorber and achieving active, real-time adjustment of the electromagnetic force. Simultaneously, eddy currents generated on the metal outer wall of the shock absorber also provide a damping force opposite to the direction of vibration.

[0097] 3 Energy Recovery System

[0098] The induction coil and the corresponding permanent magnet on the electromagnetic vibration damper work in generator mode. When the seat vibrates, the induction coil of the electromagnetic vibration damper cuts the magnetic field lines of the permanent magnet to generate an induced electromotive force and charges the supercapacitor.

[0099] Example 12:

[0100] An explosion-proof vibration seat based on magnetic levitation and magnetic flux compression technologies is described below:

[0101] The explosion-proof seat can simultaneously achieve active vibration reduction and energy recovery. An electromagnetic damper consisting of a permanent magnet and an energized coil is used for active vibration reduction, while two permanent magnets of the same polarity and an induction coil are used for energy absorption and recovery in the event of an explosion.

[0102] 1.2 Design of Explosion-Proof Seat Based on Overall Vibration Reduction and Explosion-Proof Principle

[0103] When no explosive impact occurs (acceleration pulse within 10g), the electromagnetic vibration damper is responsible for the vibration reduction function of the explosion-proof seat. The electromagnetic vibration damper operates between two modes: motor and generator. When damping, it operates in motor mode, providing a flexible electromagnetic force to counteract road bumps by adjusting the magnitude and direction of the coil current. The eddy current induced in the metal outer wall further dampens the vibration. The other operating mode of the vibration damper is generator mode, in which the vibration damper converts the mechanical energy of the vibration into electrical energy and stores it in a supercapacitor, realizing energy recovery.

[0104] When an explosive impact occurs (acceleration pulse exceeding 10g), the induced electromotive force in the electromagnetic damper coil reaches the power generation threshold. The damper then loses its magnetism, causing the seat to detach. The detached seat then achieves magnetic levitation thanks to the permanent magnets in its base. During the detachment, the permanent magnets in the seat base provide an upward thrust to the person and the seat, isolating the person from the explosive impact. The induction coils between the permanent magnets generate an induced electromotive force due to changes in magnetic flux density, storing the induced electrical energy in a supercapacitor to power the electromagnetic damper coil.

[0105] 1.3 Flexible electromagnetic force adjustment system and eddy current damping system of explosion-proof seat

[0106] Unlike traditional shock absorber seats, the shock absorber seat in this embodiment can actively adjust the electromagnetic force. After the acceleration sensor detects the actual road surface conditions and the travel sensor detects the actual travel of the shock absorber, the system issues commands to precisely control the magnitude and direction of the current input to the shock absorber coil. This causes the electromagnetic shock absorber to generate a larger damping force completely opposite to the direction of the bump, counteracting the severe vibration of the shock absorber and achieving active, real-time adjustment of the electromagnetic force. Simultaneously, the eddy currents generated on the metal outer wall of the shock absorber also provide a damping force opposite to the direction of vibration.

[0107] 1.4 Magnetic Flux Compression Explosion Energy Absorption Technology and Energy Recovery System

[0108] Energy recovery is performed in two parts: ① When vibration is low, the shock absorber operates in generator mode. The moving coil cuts the stator magnetic field to generate an induced electromotive force, which charges the supercapacitor. ② When the power generation threshold is reached (the seat faces significant vibration), the seat detaches, compressing the magnetic flux between the two like-polarity permanent magnets in the base. Due to the magnetic flux compression, a large induced electromotive force is generated in the coil, achieving explosive energy absorption. At the same time, due to the change in magnetic flux between the permanent magnets in the base, eddy currents are generated on the metal outer wall, which dampens the vibration. After the seat detaches completely, it is supported by the magnetic levitation effect between the permanent magnets in the base, isolating the human body from the vehicle floor.

Claims

1. An explosion-proof vibration seat based on magnetic levitation technology, characterized in that, Includes electromagnetic vibration damper, acceleration sensor (7), stroke sensor, control system, and power module; The acceleration sensor (7) is attached to the explosion-proof vibration seat to monitor the acceleration a of the explosion-proof vibration seat and transmit it to the control system; The travel sensor is attached to the explosion-proof vibration seat to monitor the direction of movement of the explosion-proof vibration seat and transmit the data to the control system; The control system controls the magnitude and direction of the current input from the power module to the electromagnetic damper coil based on the acceleration 'a' and direction of movement of the explosion-proof vibration seat. The electromagnetic vibration damper is arranged in the middle of the explosion-proof vibration seat; The electromagnetic vibration damper includes one energized coil (3), two induction coils (1), n ​​pairs of permanent magnets of opposite polarities arranged at intervals (2), a metal cavity, and a soft iron ring (4); The energized coil is electrically connected to the power module; The magnetic flux direction of n pairs of permanent magnets is axial; A soft iron ring (4) is provided between two adjacent permanent magnet pairs to ensure a uniform magnetic field; The i-th permanent magnet pair includes two attached permanent magnets of opposite polarities, denoted as permanent magnet i1 and permanent magnet i2 respectively; permanent magnet i2 and permanent magnet (i+1)1 of the (i+1)-th permanent magnet pair are arranged opposite each other with the same polarity; i = 1, 2, ..., n-1; The induction coils are located on both sides of the energized coil; Both the energized coil (3) and the induction coil (1) surround the permanent magnet pair; The energized coil, induction coil, and permanent magnet pair are all arranged inside the metal cavity; In the absence of an explosive impact, the electromagnetic vibration damper generates a flexible electromagnetic force to counteract road bumps, thereby achieving vibration reduction.

2. The explosion-proof vibration seat based on magnetic levitation technology according to claim 1, characterized in that, The electromagnetic vibration damper operates in two modes: electric motor mode and generator mode. When the power module supplies power to the coil of the electromagnetic vibration damper, and controls the up-and-down movement of the permanent magnet by controlling the current to achieve vibration reduction, the electromagnetic vibration damper operates in motor mode. When the permanent magnet vibrates in response to the road environment, the induction coil of the electromagnetic vibration damper cuts the magnetic field to generate an induced electromotive force and produce electricity. At this time, the electromagnetic vibration damper works in generator mode.

3. The explosion-proof vibration seat based on magnetic levitation technology according to claim 2, characterized in that, When the electromagnetic vibration damper operates in motor mode, it generates a flexible electromagnetic force to counteract road bumps based on the magnitude and direction of the current input from the power module. At the same time, the eddy current induced on the outer wall of the metal cavity of the electromagnetic vibration damper provides a damping force opposite to the vibration direction, thus damping the vibration.

4. The explosion-proof vibration seat based on magnetic levitation technology according to claim 2, characterized in that, When the electromagnetic vibration damper operates in generator mode, the induction coil cuts the magnetic field to generate an induced electromotive force, which converts the mechanical energy generated by the vibration of the vibration damping equipment into electrical energy and stores it in the power module, thus realizing energy recovery.

5. The explosion-proof vibration seat based on magnetic levitation technology according to claim 1, characterized in that, The power module is a supercapacitor.

6. The explosion-proof vibration seat based on magnetic levitation technology according to claim 1, characterized in that, The magnitude of the current input from the power module to the electromagnetic damper coil is positively correlated with the magnitude of the acceleration.

7. The explosion-proof vibration seat based on magnetic levitation technology according to claim 1, characterized in that, It also includes flux compression damping structures; When an explosion occurs, the induced electromotive force of the induction coil of the magnetic flux compression damping structure reaches the power generation threshold, the seat falls off, and the magnetic flux between the permanent magnets of the same polarity is compressed instantly. An induced electromotive force appears in the induction coil, forming eddy currents. According to Lenz's law, the direction of the eddy currents opposes the change in magnetic flux, thereby generating a reaction force to counteract the explosion impact.

8. The explosion-proof vibration seat based on magnetic levitation technology according to claim 7, characterized in that, No explosion impact occurred means that the pulse impact acceleration experienced by the explosion-proof vibration seat is less than 10g; An explosion impact occurs when the pulse impact acceleration experienced by the explosion-proof vibration seat is greater than or equal to 10g; g is the acceleration due to gravity.

9. The explosion-proof vibration seat based on magnetic levitation technology according to claim 7, characterized in that, The magnetic flux compression damping structure is arranged at the bottom of the explosion-proof seat; The flux compression damping structure includes an induction coil (5), a permanent magnet of the same polarity (6), and a metal cavity; Permanent magnets of the same polarity (6) are arranged at relative intervals; The induction coil (5) is located between permanent magnets (6) of the same polarity; The induction coil (5) and the permanent magnet (6) of the same polarity are both arranged inside the metal cavity.

10. The explosion-proof vibration seat based on magnetic levitation technology according to claim 7, characterized in that, When an explosion occurs, the magnetic flux compression damping structure compresses the magnetic flux, and the induction coil cuts the magnetic field to generate an induced electromotive force, which is then converted into electrical energy. The electrical energy converted by the magnetic flux compression damping structure is stored in the power supply module, thereby supplying energy to the energized coil (3) of the electromagnetic damper.

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