Bumping and vibration resistant flywheel energy storage device

Abstract

The invention belongs to the technical field of flywheel energy storage equipment, and discloses an anti-bumping and anti-vibration flywheel energy storage device which comprises a flywheel energy storage support used for mounting a flywheel body, the lower end of the flywheel energy storage support is slidably connected to a mounting base, and the flywheel energy storage support and the mounting base can relatively slide in the longitudinal direction. A lifting plate is slidably mounted in the mounting base, the lifting plate and the mounting base can relatively slide in the longitudinal direction, and elastic cushioning components are mounted at the upper end and the lower end of the lifting plate correspondingly. The problems that the flywheel energy storage equipment is impacted to a certain extent due to inevitable jolting during transportation, the sealing effect of the flywheel energy storage equipment is easily reduced in the transportation process due to violent jolting and vibration, the vacuum state in the flywheel energy storage equipment is easily damaged, and the service life of the flywheel energy storage equipment is prolonged can be effectively solved. And the air resistance on the flywheel during rotation is increased, so that a large amount of energy is consumed.

Description

Technical Field

[0001] This invention belongs to the field of flywheel energy storage technology, specifically a flywheel energy storage device resistant to bumps and vibrations. Background Technology

[0002] Flywheel energy storage devices are energy storage solutions that utilize a bidirectional motor (electric / generator reversible) to convert electrical energy into the mechanical kinetic energy of a high-speed flying wheel. During energy storage, electrical energy is converted by a power converter to drive the motor, which in turn accelerates the flying wheel, converting electrical energy into stored mechanical energy. During energy release, the high-speed rotating flying wheel drives the motor to generate electricity, which is then output by the power converter to meet the load requirements. The flying wheel, due to its significant mass, makes the device typically heavy. However, existing flywheel energy storage devices are inevitably subjected to bumps and vibrations during transportation, which can reduce the sealing effectiveness and disrupt the vacuum state. This increases air resistance during rotation, leading to substantial energy loss. Therefore, these devices do not meet current requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a flywheel energy storage device resistant to bumps and vibrations, in order to solve the problem mentioned in the background art that flywheel energy storage devices are inevitably subjected to bumps and vibrations during transportation, causing the flywheel energy storage device to be subjected to a certain impact. Severe bumps and vibrations can easily lead to a decrease in the sealing effect of the flywheel energy storage device during transportation, which can easily damage the vacuum state in the flywheel energy storage device, resulting in increased air resistance when the flywheel rotates, and thus leading to a large amount of energy loss.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A flywheel energy storage device resistant to bumps and vibrations includes a flywheel energy storage bracket for mounting the flywheel body. The lower end of the flywheel energy storage bracket is slidably connected to a mounting base. The flywheel energy storage bracket and the mounting base can slide relative to each other in the longitudinal direction. A lifting plate is slidably installed inside the mounting base. The lifting plate and the mounting base can slide relative to each other in the longitudinal direction. Elastic damping components are installed at both the upper and lower ends of the lifting plate.

[0005] Preferably, the lower end face of the flywheel energy storage bracket is evenly connected with several limiting shafts, the limiting shafts pass through the lifting plate and are slidably connected to the lifting plate, and a preset distance is left between the lower end face of the limiting shaft and the bottom of the mounting base.

[0006] Preferably, the elastic damping component uses multiple damping springs in a compressed state. The lower end of the damping spring at the upper end of the lifting plate is connected to the lifting plate, and the upper end is connected to the lower end face of the flywheel energy storage bracket; the upper end of the damping spring at the lower end of the lifting plate is connected to the lifting plate, and the lower end is connected to the bottom of the mounting base.

[0007] Preferably, the inner cavity of the flywheel energy storage bracket is sealed, and the flywheel energy storage bracket is connected to a vacuum pump for evacuating the inner cavity of the flywheel energy storage bracket via a vacuum pipe.

[0008] Preferably, the outlet end of the vacuum pump is connected to the inner cavity of the mounting base through an exhaust pipe, the lifting plate is provided with several air passage holes, the inner cavity of the mounting base is a sealed chamber, and the mounting base, the lifting plate, and the flywheel energy storage bracket are all in sealed contact.

[0009] Preferably, the vacuuming pipe is connected to a branch pipe, the branch pipe is connected to the vacuuming pipe, and an electrically controlled valve is installed on the branch pipe.

[0010] Preferably, an external protective bracket is installed on the outside of the flywheel energy storage bracket. The external protective bracket is sleeved on the outside of the flywheel energy storage bracket and forms a sealed first cavity interlayer with the outer surface of the flywheel energy storage bracket. The inside of the external protective bracket has a sealed second cavity interlayer. A first exhaust pipe is installed on the flywheel energy storage bracket, and the inner cavity of the flywheel energy storage bracket is connected to the first cavity interlayer through the first exhaust pipe. A second exhaust pipe is installed on the inner layer of the external protective bracket, and the first cavity interlayer and the second cavity interlayer are connected through the second exhaust pipe. One-way valves are provided at one end of the second exhaust pipe and at one end of the first exhaust pipe in the cavity interlayer. A vacuum pipe is connected to the second cavity interlayer.

[0011] Preferably, a pressure sensor for detecting the air pressure inside the flywheel energy storage bracket is installed on the flywheel energy storage bracket, and the pressure sensor and the vacuum pump are both connected to a controller; The controller receives air pressure information detected by the air pressure sensor in real time. When the detected value of the air pressure sensor is higher than the preset value, the controller controls the vacuum pump to work and evacuate the inner cavity of the flywheel energy storage bracket until the air pressure in the inner cavity of the flywheel energy storage bracket is lower than the preset value, at which point the controller controls the vacuum pump to stop working.

[0012] Preferably, a top bracket is fixedly installed at the upper end of the flywheel energy storage bracket, and a bottom bracket is fixedly installed at the lower end of the flywheel energy storage bracket. The upper and lower ends of the flywheel body are rotatably connected to the top bracket and the bottom bracket, respectively. A first radial magnetic levitation bearing is installed between the flywheel body and the top bracket, and a second radial magnetic levitation bearing is installed between the lower end of the flywheel body and the bottom bracket. An axial magnetic levitation bearing is installed on the outside of the flywheel body, and the axial magnetic levitation bearing is fixedly connected to the flywheel energy storage bracket.

[0013] Preferably, an electric / generator reversible bidirectional motor is installed on the outside of the flywheel body, and the electric / generator reversible bidirectional motor is fixedly connected to the flywheel energy storage bracket.

[0014] The present invention has the following beneficial effects: This invention relates to an anti-bump and vibration flywheel energy storage device. Through a longitudinal sliding connection between the flywheel energy storage bracket and the mounting base, and in conjunction with a longitudinally sliding lifting plate within the mounting base and elastic damping components at the upper and lower ends of the lifting plate, a targeted, graded damping structure is constructed. This effectively solves the technical problem of existing flywheel energy storage devices experiencing sealing failure and vacuum disruption due to transportation bumps and impacts, thus exacerbating energy loss. The specific principle of this invention is as follows: The advantage of this structural design lies in forming a dual-layer collaborative damping mechanism. When the device encounters transportation bumps, the flywheel energy storage bracket slides relative to the mounting base, transmitting the impact force to the elastic damping components at the upper end of the lifting plate. The elastic deformation of these components initially absorbs the impact energy. Simultaneously, the lifting plate slides relative to the mounting base, and its lower elastic damping components form a secondary buffer, transforming the severe impact force into a gentler force. This reduces the impact on the device from the source, thereby maintaining the stability of the internal vacuum environment and ensuring that the flywheel always rotates in a low-resistance state to reduce energy loss. Furthermore, the overall structure achieves its anti-bump function solely through the sliding connection and the reasonable layout of the elastic damping components, without the need for complex additional mechanisms. This ensures both protective effectiveness and structural compactness and practical applicability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional perspective view of the anti-bump and vibration flywheel energy storage device of the present invention; Figure 2 This is a diagram showing the location of the vacuum pump outside the mounting base in the anti-bump and vibration flywheel energy storage device of the present invention; Figure 3 This is a schematic diagram (longitudinal section) of the internal structure of the anti-bump and vibration flywheel energy storage device of the present invention. Figure 4 for Figure 3 Enlarged view of section A in the middle.

[0016] In the diagram: 1. Flywheel energy storage bracket; 2. External protective bracket; 3. Mounting base; 4. Controller; 5. Vacuum pump; 6. Vacuum extraction pipe; 7. Branch pipe; 8. Exhaust pipe; 9. Flywheel body; 10. Top bracket; 11. Bottom bracket; 12. First radial magnetic levitation bearing; 13. Electric / generator reversible bidirectional motor; 14. Second radial magnetic levitation bearing; 15. First exhaust pipe; 16. Second exhaust pipe; 17. One-way valve; 18. Shock-absorbing spring; 19. Lifting plate; 20. Limiting shaft; 21. Air passage hole; 22. Axial magnetic levitation bearing; 23. Pressure sensor; 24. First cavity interlayer; 25. Second cavity interlayer. Detailed Implementation

[0017] The present invention will be further described clearly and in detail below with reference to specific embodiments and the accompanying drawings. Those skilled in the art will be able to implement the present invention based on these descriptions. Furthermore, the embodiments of the present invention described below are generally only some, not all, of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0018] Example 1 See Figures 1-3 This embodiment of the flywheel energy storage device for resisting bumps and vibrations includes a flywheel energy storage bracket 1 for mounting the flywheel body 9. The lower end of the flywheel energy storage bracket 1 is slidably connected to a mounting base 3. The flywheel energy storage bracket 1 and the mounting base 3 can slide relative to each other in the longitudinal direction. A lifting plate 19 is slidably installed inside the mounting base 3. The lifting plate 19 and the mounting base 3 can slide relative to each other in the longitudinal direction. Elastic damping components are installed at both the upper and lower ends of the lifting plate 19. The damping principle in this embodiment is as follows: When the device encounters bumps and impacts during transportation, the flywheel energy storage bracket 1 slides longitudinally along the mounting base 3, transmitting the impact force to the elastic damping component at the upper end of the lifting plate 19. The component initially absorbs the impact energy through its own deformation, while simultaneously driving the lifting plate 19 to move longitudinally along the mounting base 3. The elastic damping component at the lower end of the lifting plate 19 deforms synchronously, further dissipating the remaining impact force and forming a double-layer graded buffering effect. The above-described solution in this embodiment can effectively reduce the severe impact of transportation bumps on the device, prevent the flywheel energy storage bracket 1 and internal components from deforming due to vibration, thereby protecting the integrity of the device's sealed structure, preventing the internal vacuum state from being destroyed, ensuring that the air resistance does not increase when the flywheel body 9 rotates, reducing energy loss. At the same time, the overall structural design is simple. Through the cooperation of sliding connection and elastic damping components, the device's anti-bumping ability is significantly improved without increasing the complexity of the device, ensuring the stability of transportation and subsequent operation.

[0019] Example 2 This embodiment is based on the above embodiment, with several limiting shafts 20 evenly connected to the lower end face of the flywheel energy storage bracket 1. The limiting shafts 20 pass through the lifting plate 19 and are slidably connected to the lifting plate 19. A preset distance is left between the lower end face of the limiting shaft 20 and the bottom of the mounting base 3. The working principle of the above structure in this embodiment is as follows: When the device encounters transportation bumps, the flywheel energy storage bracket 1 slides longitudinally relative to the mounting base 3, and the lifting plate 19 moves up and down synchronously to buffer the movement. The limiting shafts 20 move together with the flywheel energy storage bracket 1, and the lifting plate 19 provides a guiding function for the limiting shafts 20. The lower end of the limiting shaft 20 is left at a preset distance from the bottom of the mounting base 3 and does not contact the bottom of the mounting base 3. The advantage is that the maximum displacement of the flywheel energy storage bracket 1 can be precisely limited by the limiting shaft 20, so as to prevent the flywheel energy storage bracket 1 from moving excessively due to excessive impact force, prevent the upper and lower elastic damping components from being compressed to the limit and causing damage, and at the same time prevent the flywheel energy storage bracket 1 from rigidly colliding with the mounting base 3, further ensuring the stability and service life of the double-layer damping structure, and ensuring that the damping function continues to perform reliably.

[0020] Example 3 This embodiment is based on the above embodiment, and specifically sets the elastic damping component as multiple damping springs 18 in a compressed state. The lower end of the damping spring 18 at the upper end of the lifting plate 19 is connected to the lifting plate 19, and the upper end is connected to the lower end face of the flywheel energy storage bracket 1. The upper end of the damping spring 18 at the lower end of the lifting plate 19 is connected to the lifting plate 19, and the lower end is connected to the bottom of the mounting base 3. The working principle of the above structure in this embodiment is as follows: When the device is stationary, the compressed damping springs 18 can provide preload, keeping the flywheel energy storage bracket 1 and the lifting plate 19 in a stable relative position. When transportation bumps generate impact force, the flywheel energy storage bracket 1 slides downward to press the upper damping spring 18. The spring absorbs part of the impact energy through elastic deformation and generates a rebound force, simultaneously driving the lifting plate 19 to move downward to press the lower damping spring 18. The lower spring deforms synchronously to further dissipate the impact force. After the impact force weakens, the elastic restoring force of the upper and lower damping springs 18 drives the flywheel energy storage bracket 1 and the lifting plate 19 back to their initial positions. The advantages of this design in this embodiment are that the damping spring 18 in the compressed state has a faster response speed and can withstand the impact force immediately. The even arrangement of multiple springs can make the force more balanced and avoid local stress concentration that could lead to structural damage. Compared with ordinary elastic components, the damping spring 18 has stronger elastic stability and can maintain the buffering effect for a long time. At the same time, the clear connection method makes assembly more convenient and the structural reliability is higher.

[0021] Example 4 This embodiment, based on the above embodiment, designs the inner cavity of the flywheel energy storage bracket 1 as a sealed structure and equips it with a vacuum pump 5 via a vacuum extraction pipe 6. The vacuum pump 5 is specifically used for evacuating the inner cavity of the flywheel energy storage bracket 1. The working principle of the above structure in this embodiment is as follows: Before the device is put into use, the vacuum pump 5 is started, and the air in the inner cavity of the flywheel energy storage bracket 1 is extracted through the vacuum extraction pipe 6 to create a vacuum environment in the inner cavity. During transportation and operation, the vacuum pump 5 can be started periodically as needed to replenish the vacuum and maintain the vacuum level in the inner cavity. The advantages are that the sealed inner cavity, combined with the vacuum pump 5, can accurately achieve a vacuum environment for the flywheel rotation, fundamentally reducing the air resistance when the flywheel body 9 rotates and reducing energy loss. At the same time, the combination of the sealed structure and the vacuum pump 5 can provide a stable operating environment for the flywheel body 9, preventing external impurities from entering and affecting the performance of the equipment. Furthermore, the connection method of the vacuum extraction pipe 6 is simple, facilitating the installation and maintenance of the vacuum pump 5.

[0022] Example 5 This embodiment is based on the above embodiment, with the outlet end of the vacuum pump 5 connected to the sealed inner cavity of the mounting base 3 through the exhaust pipe 8. Several air passage holes 21 are opened on the lifting plate 19, while ensuring that the mounting base 3, the lifting plate 19, and the flywheel energy storage bracket 1 are in sealed contact. The working principle of the above structure in this embodiment is as follows: When the vacuum pump 5 evacuates the inner cavity of the flywheel energy storage bracket 1, some of the extracted air is injected into the sealed inner cavity of the mounting base 3 through the exhaust pipe 8, so that the inner cavity of the mounting base 3 forms a certain air pressure; when the flywheel energy storage bracket 1 and the lifting plate 19 move due to transportation bumps, the air below the lifting plate 19 flows upward through the air passage holes 21. Since the diameter of the air passage holes 21 is generally small (generally a round hole with a diameter of 3-5mm), the air flow generates a damping force, which forms a synergistic buffer with the upper and lower shock-absorbing springs 18; at the same time, the sealed contact design can prevent air leakage in the inner cavity of the mounting base 3, ensuring the stability of the air pressure damping effect. The advantages of the above-mentioned structural design in this embodiment are that the synergistic effect of air pressure damping and spring buffer can significantly improve the shock absorption effect, further weaken the impact of bumps, avoid violent shaking of the flywheel energy storage bracket 1, effectively protect its sealing structure, and prevent the vacuum state of the inner cavity from being destroyed; the setting of the air vent 21 not only ensures the smooth movement of the lifting plate 19, but also optimizes the buffering performance through airflow resistance. The overall structure realizes the linkage between the vacuuming function and the shock absorption function, improving the integration and practicality of the device.

[0023] Example 6 This embodiment is based on the above embodiment, with a branch pipe 7 connected to the vacuum pipe 6. The branch pipe 7 is kept in communication with the vacuum pipe 6, and an electrically controlled valve is installed on the branch pipe 7. The working principle of the above structure in this embodiment is as follows: During normal vacuuming operations, the electrically controlled valve is closed, and the vacuum pump 5 evacuates the inner cavity of the flywheel energy storage bracket 1 separately through the vacuum pipe 6. When the vacuum pipe 6 needs to be inspected or replaced, or when continuous vacuuming is not required but the pipe needs to be kept unobstructed, the electrically controlled valve is opened. The branch pipe 7 can be used as a backup channel, or to release residual gas pressure in the pipe, or it can be connected to other auxiliary equipment. The advantage of this design in this embodiment is that the electrically controlled valve can flexibly control the opening and closing of the branch pipe 7, improving the flexibility of device operation. The setting of the branch pipe 7 provides redundancy for the vacuuming system, avoiding the failure of the vacuuming function due to the failure of the vacuum pipe 6. At the same time, it facilitates the maintenance of the pipe, reduces equipment downtime, and ensures the continuous and stable operation of the device.

[0024] Example 7 This embodiment is based on the above embodiment, with an external protective bracket 2 fitted over the flywheel energy storage bracket 1. The external protective bracket 2 and the outer surface of the flywheel energy storage bracket 1 form a sealed first cavity interlayer 23. The external protective bracket 2 has a sealed second cavity interlayer 24 inside. The flywheel energy storage bracket 1 is connected to the first cavity interlayer 23 through a first exhaust pipe 15. The inner layer of the external protective bracket 2 is connected to the first cavity interlayer 23 and the second cavity interlayer 24 through a second exhaust pipe 16. One-way valves 17 are provided at one end of the first and second exhaust pipes located in the cavity interlayer. The vacuum pipe 6 is connected to the second cavity interlayer 24. The working principle of the above structure in this embodiment is as follows: After starting the vacuum pump 5, the second cavity interlayer 24 is evacuated first through the vacuum evacuation pipe 6, then the first cavity interlayer 23 is evacuated through the second air extraction pipe 16 and the one-way valve 17, and finally the inner cavity of the flywheel energy storage bracket 1 is evacuated through the first air extraction pipe 15 and the one-way valve 17. The one-way valve 17 can prevent air from flowing back and ensure the stability of the vacuum state of each chamber. The external protective bracket 2 can block the impact of foreign objects during transportation. The advantage of the above structural design in this embodiment is that the double cavity interlayer forms a multi-level sealing protection structure, which further improves the sealing reliability of the flywheel energy storage bracket 1. Even if there is a slight leakage in the outer protection, the inner cavity interlayer can still maintain a vacuum environment and avoid a rapid drop in the vacuum degree of the inner cavity of the flywheel energy storage bracket 1. The one-way valve 17 effectively blocks the air backflow and ensures the vacuum evacuation efficiency and effect. The external protective bracket 2 has both protection and sealing auxiliary functions, which can prevent the flywheel energy storage bracket 1 from deforming and leaking due to the impact of foreign objects, and significantly improve the anti-interference ability and operational stability of the device.

[0025] Example 8 This embodiment, based on the above embodiment, installs a pressure sensor 23 on the flywheel energy storage bracket 1, and connects both the pressure sensor 23 and the vacuum pump 5 to the controller 4. The controller 4 receives the detection data from the pressure sensor 23 in real time, presets a pressure threshold, and automatically starts the vacuum pump 5 to evacuate when the detected value is higher than the preset value. The controller 4 then stops the vacuum pump 5 when the detected value is lower than the preset value. The working principle of the above structure in this embodiment is as follows: During the operation and transportation of the device, the pressure sensor 23 continuously monitors the internal pressure of the flywheel energy storage bracket 1, converting the detection signal into an electrical signal and transmitting it to the controller 4. The controller 4 analyzes the data in real time to determine whether the internal vacuum level meets the standard, achieving automatic start and stop of the vacuum pump 5 without manual intervention. The advantage is that it achieves intelligent closed-loop control of the vacuum level. Compared with manual monitoring and adjustment, the response is faster and the control is more precise. It can promptly compensate for the decrease in vacuum level caused by minor sealing leaks, avoiding increased energy loss due to vacuum state disruption. The automatic control mode reduces manual maintenance costs and lowers the risk of equipment failure due to human error, improving the automation level and operational reliability of the device.

[0026] Example 9 This embodiment is based on the above embodiment. A top support 10 is fixed to the upper end and a bottom support 11 is fixed to the lower end inside the flywheel energy storage bracket 1. The upper and lower ends of the flywheel body 9 are rotatably connected to the top and bottom supports, respectively. A first radial magnetic levitation bearing 12 is installed between the flywheel body 9 and the top support 10, and a second radial magnetic levitation bearing 14 is installed between the flywheel body 9 and the bottom support 11. An axial magnetic levitation bearing 22, fixed to the flywheel energy storage bracket 1, is installed outside the flywheel body 9. The working principle of the above structure in this embodiment is as follows: When the flywheel body 9 rotates, the first and second radial magnetic levitation bearings 12 and 14 generate radial magnetic levitation force, which counteracts the radial load of the flywheel body 9 and prevents radial friction between the flywheel body 9 and the top and bottom supports; the axial magnetic levitation bearing 22 generates axial magnetic levitation force, balancing the axial load of the flywheel body 9 and preventing the flywheel body 9 from moving axially and rubbing against other components. The advantage of this design in this embodiment is that the magnetic levitation bearing can achieve contactless support for the flywheel body 9. Compared with traditional mechanical bearings, it completely eliminates energy loss and component wear caused by contact friction, further improving the energy conversion efficiency and service life of the flywheel energy storage device. At the same time, the radial and axial magnetic levitation bearings work together to precisely control the rotational attitude of the flywheel body 9. Even after bumpy transportation, the flywheel body 9 can still rotate stably. Combined with the shock absorption structure, it can comprehensively protect the performance of the device.

[0027] Example 10 This embodiment is based on the above embodiment, with an electric / generator reversible bidirectional motor 13 installed on the outside of the flywheel body 9, and the motor is fixedly connected to the flywheel energy storage bracket 1. The working principle of the above structure in this embodiment is as follows: During the energy storage stage, external electrical energy is converted and drives the electric / generator reversible bidirectional motor 13 to operate. The motor drives the flywheel body 9 to rotate at an accelerated speed, converting electrical energy into mechanical energy and storing it in the flywheel. During the energy release stage, the high-speed rotating flywheel body 9 drags the motor to operate, causing the motor to switch to generator mode, converting mechanical energy into electrical energy, which is then output to the load after conversion. The advantage is that the electric / generator reversible bidirectional motor 13 integrates drive and generator functions, simplifying the device structure and avoiding the space occupation and structural complexity problems caused by separately setting up drive motors and generators. The motor is fixedly connected to the flywheel energy storage bracket 1, and the structural stability of the bracket can be used to ensure the coaxiality of the motor and the flywheel body 9, reduce vibration and deviation during rotation, improve the stability and efficiency of energy conversion, and at the same time, it is compatible with the shock absorption structure to ensure that the motor is not subjected to severe impact during transportation, ensuring its working reliability.

[0028] Example 11 Please see Figures 1-4 This embodiment is a synthesis of all the above embodiments. The flywheel energy storage device for resisting bumps and vibrations in this embodiment includes a flywheel energy storage bracket 1, a mounting base 3, and a vacuum pump 5. The mounting base 3 is installed at the lower end of the flywheel energy storage bracket 1. The flywheel energy storage bracket 1 and the mounting base 3 are longitudinally slidably connected through a slot. The mounting base 3 has a lifting plate 19 installed inside. The lifting plate 19 is longitudinally slidably connected to the mounting base 3 through a slot. The installation of the lifting plate 19, in conjunction with the shock-absorbing spring 18, allows the shock-absorbing spring 18 to convert the severe impact force on the device into a gentler impact force when the device is subjected to bumps, preventing damage to the device and enhancing its protective capability. Both the upper and lower ends of the lifting plate 19 are equipped with shock-absorbing springs 18, which are fixedly connected to the lifting plate 19. The shock-absorbing spring 18 on the upper end of the lifting plate 19 is fixedly connected to the flywheel energy storage bracket 1, and the shock-absorbing spring 18 on the lower end of the lifting plate 19 is fixedly connected to the mounting base 3. The exterior of the lifting plate 19 is provided with several air holes 21. The installation of the air holes 21 allows air to flow through the lifting plate 19, ensuring that the lifting plate 19 can move. The air pressure, in conjunction with the shock-absorbing spring 18, can buffer the device and prevent the device from shaking violently. Vacuum pump 5 is installed on one side of mounting base 3. Installing vacuum pump 5 not only evacuates the inside of flywheel energy storage bracket 1, reducing the resistance encountered when the flywheel body 9 rotates, but also allows some air to be injected into the mounting base 3. This, combined with the shock-absorbing spring 18, makes the device more stable when subjected to bumps, preventing violent shaking and ensuring the vacuum state within the device is not easily disrupted. It also prevents increased air resistance on the flywheel body 9 during rotation, reducing energy loss. Vacuum pump 5 is fixed to mounting base 3 with screws. An external protective bracket 2 is installed on the outside of flywheel energy storage bracket 1. The external protective bracket 2 provides shielding protection for flywheel energy storage bracket 1, preventing impacts between the device and external objects during transportation, which could cause deformation and air leakage, enhancing the practicality of the device. The external protective bracket 2 is threadedly connected to flywheel energy storage bracket 1. The connection between the flywheel energy storage bracket 1 and the external protective bracket 2 is sealed. The external protective bracket 2 and the outer surface of the flywheel energy storage bracket 1 form a sealed first cavity interlayer 23. The external protective bracket 2 has a sealed second cavity interlayer 24 inside. The flywheel energy storage bracket 1 is connected to the first cavity interlayer 23 through the first air extraction pipe 15. The inner layer of the external protective bracket 2 is connected to the first cavity interlayer 23 and the second cavity interlayer 24 through the second air extraction pipe 16. One-way valves 17 are provided at one end of the first and second air extraction pipes located in the cavity interlayer. The vacuum pipe 6 is connected to the second cavity interlayer 24. The air inlet of the vacuum pump 5 is connected to the vacuum pipe 6. The air inlet and outlet direction of the one-way valve 17 is set from the inside of the flywheel energy storage bracket 1 to the external protective bracket 2. The vacuum pipe 6 is installed on one side of the external protective bracket 2. The output end of the vacuum pump 5 is fixedly installed with an exhaust pipe 8, which extends into the interior of the mounting base 3.

[0029] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4A branch pipe 7 is installed outside the vacuum pipe 6, and the branch pipe 7 is welded to the vacuum pipe 6. An electrically controlled valve is installed outside the branch pipe 7. A top support 10 is fixedly installed at the upper end inside the flywheel energy storage bracket 1, and a bottom support 11 is fixedly installed at the lower end inside the flywheel energy storage bracket 1. A flywheel body 9 is installed between the bottom support 11 and the top support 10. A second radial magnetic levitation bearing 14 is installed between the flywheel body 9 and the bottom support 11. A first radial magnetic levitation bearing 12 is installed between the flywheel body 9 and the top support 10. An axial magnetic levitation bearing 22 is installed outside the flywheel body 9. The axial magnetic levitation bearing 22 is connected to the flywheel energy storage... The energy storage bracket 1 is fixedly connected. An electric / generator reversible bidirectional motor 13 is installed on the outside of the flywheel body 9. The electric / generator reversible bidirectional motor 13 is fixedly connected to the flywheel energy storage bracket 1. A pressure sensor 23 is installed on the other side of the lower end of the flywheel energy storage bracket 1. The pressure sensor 23 can detect the pressure of the flywheel energy storage bracket 1, so that the staff can know the pressure change of the flywheel energy storage bracket 1 in time and handle it in time. A limit shaft 20 is fixedly installed at the lower end of the flywheel energy storage bracket 1. The limit shaft 20 is longitudinally slidably connected to the lifting plate 19 through a slot. A controller 4 is fixedly installed on the other side of the front end face of the mounting base 3.

[0030] Working principle: During use, the vacuum pump 5 evacuates the flywheel energy storage bracket 1 to a vacuum state through the second suction pipe 16 and the first suction pipe 15. The extracted air is injected into the mounting base 3 through the exhaust pipe 8. When the device is subjected to bumps during transportation, the flywheel energy storage bracket 1 will move downwards. The flywheel energy storage bracket 1 will immediately compress the damping spring 18 at the upper end of the lifting plate 19, causing the damping spring 18 to compress. Then, the damping spring 18 will push the lifting plate 19 downwards, allowing the air below the lifting plate 19 to flow through the air passage 21 to the top of the lifting plate 19. Because the air passage 21 is relatively... The small size creates resistance to airflow, thus acting as a buffer. When the lifting plate 19 moves downwards, it compresses the damping spring 18 below it, generating resistance. The air and the damping spring 18 work together to achieve self-damping of the device. When air enters the flywheel energy storage bracket 1, the air pressure sensor 23 detects an abnormal signal and sends a signal to the controller 4, causing the controller 4 to issue an alarm. When the device stores energy, the electric / generator reversible bidirectional motor 13 drives the flywheel body 9 to rotate at high speed, converting electrical energy into mechanical energy for storage. When releasing energy, the flywheel body 9 drives the electric / generator reversible bidirectional motor 13 to generate electricity, thus releasing energy. The device is equipped with a lifting plate 19, which, in conjunction with a shock-absorbing spring 18, transforms the severe impact force received by the device into a gentler impact force when subjected to bumps, preventing damage and enhancing the device's protective capabilities. An air vent 21 allows air to flow through the lifting plate 19, ensuring its movement. The air pressure, combined with the shock-absorbing spring 18, buffers the device, preventing violent shaking. The installation of a vacuum pump 5 not only allows air to flow through the flywheel energy storage bracket 1... Vacuuming reduces the resistance encountered when the flywheel body 9 rotates, and allows some air to be injected into the mounting base 3. This, combined with the air pressure and the damping spring 18, makes the device more stable when subjected to bumps, preventing violent shaking and ensuring the vacuum state within the device is not easily disrupted. It also prevents the flywheel body 9 from experiencing increased air resistance during rotation, reducing energy loss. The external protective bracket 2 provides shielding protection for the flywheel energy storage bracket 1, preventing collisions between the device and external objects during transportation that could cause deformation of the flywheel energy storage bracket 1 and air leakage, thus enhancing the device's practicality.

[0031] As can be seen from the above solutions, the technical solution of the present invention has the following characteristics: 1. This invention, by installing a lifting plate in conjunction with a shock-absorbing spring, allows the device to withstand bumps by converting the severe impact force into a gentler one, preventing damage and enhancing its protective capabilities. The air vents allow air to flow through the lifting plate, ensuring its movement. The air pressure, combined with the shock-absorbing spring, cushions the device and prevents violent shaking. The vacuum pump not only evacuates the flywheel energy storage bracket, reducing resistance during flywheel rotation, but also injects air into the mounting base. This further stabilizes the device during bumps by combining air pressure with the shock-absorbing spring, preventing violent shaking, protecting the vacuum state, reducing air resistance during flywheel rotation, and minimizing energy loss. 2. By installing an external protective bracket, the flywheel energy storage bracket can be shielded and protected, preventing collisions between the device and external objects during transportation, which could cause external deformation of the flywheel energy storage bracket and air leakage, thus enhancing the practicality of the device.

[0032] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A flywheel energy storage device resistant to bumps and vibrations, characterized in that, The system includes a flywheel energy storage bracket (1) for mounting the flywheel body (9), the lower end of which is slidably connected to a mounting base (3). The flywheel energy storage bracket (1) and the mounting base (3) can slide relative to each other in the longitudinal direction. A lifting plate (19) is slidably installed inside the mounting base (3). The lifting plate (19) and the mounting base (3) can slide relative to each other in the longitudinal direction. Elastic damping components are installed at both the upper and lower ends of the lifting plate (19).

2. The flywheel energy storage device resistant to bumps and vibrations according to claim 1, characterized in that, The lower end face of the flywheel energy storage bracket (1) is evenly connected with several limiting shafts (20). The limiting shafts (20) pass through the lifting plate (19) and are slidably connected to the lifting plate (19). A preset distance is left between the lower end face of the limiting shaft (20) and the bottom of the mounting base (3).

3. The flywheel energy storage device resistant to bumps and vibrations according to claim 1, characterized in that, The elastic damping component uses multiple damping springs (18) in a compressed state. The lower end of the damping spring (18) at the upper end of the lifting plate (19) is connected to the lifting plate (19), and the upper end is connected to the lower end face of the flywheel energy storage bracket (1). The upper end of the damping spring (18) at the lower end of the lifting plate (19) is connected to the lifting plate (19), and the lower end is connected to the bottom of the mounting base (3).

4. The flywheel energy storage device resistant to bumps and vibrations according to claim 1, characterized in that, The inner cavity of the flywheel energy storage bracket (1) is sealed, and the flywheel energy storage bracket (1) is connected to a vacuum pump (5) for evacuating the inner cavity of the flywheel energy storage bracket (1) through a vacuum pipe (6).

5. A flywheel energy storage device resistant to bumps and vibrations according to claim 4, characterized in that, The outlet end of the vacuum pump (5) is connected to the inner cavity of the mounting base (3) through the exhaust pipe (8). The lifting plate (19) has several air holes (21). The inner cavity of the mounting base (3) is a sealed chamber. The mounting base (3) is in sealed contact with the lifting plate (19) and the flywheel energy storage bracket (1).

6. A flywheel energy storage device resistant to bumps and vibrations according to claim 4, characterized in that, The vacuum pipe (6) is connected to a branch pipe (7), which is connected to the vacuum pipe (6) and is equipped with an electrically controlled valve.

7. A flywheel energy storage device resistant to bumps and vibrations according to claim 4, characterized in that, An external protective bracket (2) is installed on the outside of the flywheel energy storage bracket (1). The external protective bracket (2) is sleeved on the outside of the flywheel energy storage bracket (1) and forms a sealed first cavity interlayer (23) between it and the outer surface of the flywheel energy storage bracket (1). The external protective bracket (2) has a sealed second cavity interlayer (24) inside. A first exhaust pipe (15) is installed on the flywheel energy storage bracket (1). Between the inner cavity of the flywheel energy storage bracket (1) and the first cavity interlayer (23) The first suction pipe (15) is connected; the inner layer of the external protective bracket (2) is equipped with a second suction pipe (16), the first cavity interlayer (23) and the second cavity interlayer (24) are connected through the second suction pipe (16), and a one-way valve (17) is provided at one end of the second suction pipe (16) and at one end of the first suction pipe (15) in the cavity interlayer (23). The vacuum pipe (6) is connected to the second cavity interlayer (24).

8. A flywheel energy storage device resistant to bumps and vibrations according to claim 4, characterized in that, A pressure sensor (23) for detecting the air pressure inside the flywheel energy storage bracket (1) is installed on the flywheel energy storage bracket (1). The pressure sensor (23) and the vacuum pump (5) are both connected to a controller (4). The controller (4) receives the air pressure information detected by the air pressure sensor (23) in real time. When the detected value of the air pressure sensor (23) is higher than the preset value, the controller (4) controls the vacuum pump (5) to work and evacuate the inner cavity of the flywheel energy storage bracket (1) until the air pressure in the inner cavity of the flywheel energy storage bracket (1) is lower than the preset value. Then the controller (4) controls the vacuum pump (5) to stop working.

9. A flywheel energy storage device resistant to bumps and vibrations according to claim 1, characterized in that, A top bracket (10) is fixedly installed at the upper end inside the flywheel energy storage bracket (1), and a bottom bracket (11) is fixedly installed at the lower end inside the flywheel energy storage bracket (1). The upper and lower ends of the flywheel body (9) are rotatably connected to the top bracket (10) and the bottom bracket (11) respectively. A first radial magnetic levitation bearing (12) is installed between the flywheel body (9) and the top bracket (10). A second radial magnetic levitation bearing (14) is installed between the lower end of the flywheel body (9) and the bottom bracket (11). An axial magnetic levitation bearing (22) is installed on the outside of the flywheel body (9). The axial magnetic levitation bearing (22) is fixedly connected to the flywheel energy storage bracket (1).

10. A flywheel energy storage device resistant to bumps and vibrations according to claim 1, characterized in that, The flywheel body (9) is equipped with an electric / generator reversible bidirectional motor (13), which is fixedly connected to the flywheel energy storage bracket (1).

Images