Flywheel energy storage motor and vacuum operation device

Abstract

The invention relates to the technical field of flywheel energy storage, in particular to a flywheel energy storage motor and a vacuum operation device.The flywheel energy storage motor comprises a vacuum protection shell, a heat dissipation chamber is fixedly connected to the bottom of the outer side of the vacuum protection shell, a motor chamber is fixedly connected to the top of the outer side of the vacuum protection shell, and a fixing ring is fixedly connected to the interior of the motor chamber; according to the Roots vacuum pump, the flywheel energy storage assembly and the vibration reduction and noise elimination mechanism are used, when a small amount of gas permeates into the vacuum cavity, the gas in the vacuum cavity is exhausted through cooperation of the flow guide cavity, the spiral line and the impeller, long-term operation of the Roots vacuum pump is not needed, energy consumption is reduced, and cost is saved; meanwhile, the Roots vacuum pump is separated from the vacuum cavity, and the silencing cavity is formed between the Roots vacuum pump and the vacuum cavity, so that the influence of vibration and noise generated in the working process of the Roots vacuum pump on operation of parts in the vacuum cavity is further reduced, and the use practicability and reliability of the device are improved.

Description

Technical Field

[0001] This invention relates to the field of flywheel energy storage technology, and more specifically, to a flywheel energy storage motor and a vacuum operation device. Background Technology

[0002] The flywheel energy storage motor is a highly integrated bidirectional motor designed specifically for flywheel energy storage systems, capable of reversing electric and generator functions. It is a key actuator for achieving efficient and rapid bidirectional conversion between electrical energy and mechanical kinetic energy, and is the "heart" of the flywheel energy storage system.

[0003] There are still shortcomings in actual use. During use, it is heavily reliant on the vacuum pump set, and the air inside the device needs to be extracted periodically. If the gas concentration inside the device is high, the flywheel will suffer huge gas friction losses when rotating at high speed. The resulting violent air turbulence will cause the device temperature to rise, thus affecting the service life of the device. Long-term operation of the vacuum pump set will lead to higher energy consumption, which in turn increases operating costs.

[0004] Based on this, the present invention discloses a flywheel energy storage motor and a vacuum operation device. Summary of the Invention

[0005] To address the issues raised in the background art, where the device heavily relies on a vacuum pump unit during operation and requires periodic extraction of air from the device, high gas concentrations can cause wear and tear on the flywheel due to gas friction during high-speed rotation. The resulting severe air turbulence can also raise the device temperature, impacting its lifespan. Furthermore, prolonged operation of the vacuum pump unit leads to increased energy consumption and higher operating costs. This invention provides a flywheel energy storage motor and a vacuum operating device, comprising a vacuum protective shell. A heat dissipation chamber is fixedly connected to the bottom outer side of the vacuum protective shell, and a motor chamber is fixedly connected to the top outer side of the vacuum protective shell. A fixing ring is fixedly connected inside the motor chamber, and a permanent magnet synchronous motor is installed in the center of the fixing ring. One set of output terminals of the permanent magnet synchronous motor passes through the motor chamber. A flywheel energy storage component is located inside a vacuum protective shell, and the flywheel energy storage component includes a sealing mechanism and a vacuum extraction mechanism. A cooling assembly located inside the motor chamber, the cooling assembly including a vibration damping and noise reduction mechanism, the cooling assembly and the vibration damping and noise reduction mechanism being used together; Preferably, the flywheel energy storage assembly includes a main shaft, a magnetic levitation bearing A, a flywheel assembly, a vacuum chamber, and a magnetic levitation bearing B. The output end of the permanent magnet synchronous motor is fixedly connected to the main shaft. A vacuum chamber is fixedly connected inside the vacuum protective shell. A magnetic levitation bearing A is fixedly connected to the top inner side of the vacuum chamber. The main shaft passes through the interior of the magnetic levitation bearing A. A magnetic levitation bearing B is fixedly connected to the bottom inner side of the vacuum chamber. The main shaft passes through the interior of the magnetic levitation bearing B. A flywheel assembly is fixedly connected to the outside of the main shaft. The main shaft does not directly contact the magnetic levitation bearing A and the magnetic levitation bearing B.

[0006] Preferably, the sealing mechanism includes a flange A, a knife edge, a flange B, and fastening screws. The flange A is fixedly connected to the bottom outer side of the permanent magnet synchronous motor, and the flange B is fixedly connected to the top outer side of the vacuum chamber. A knife edge is provided inside the flange A, and multiple sets of fastening screws are provided in the middle outer side of the flange A. A fastening screw passes through the middle inner side of the flange B.

[0007] Preferably, the vacuum extraction mechanism includes a flow guide cavity, a spiral, an impeller, a connecting port, a metal bellows, a Roots vacuum pump, and a connecting plate. The flow guide cavity is provided at the bottom outer side of the vacuum chamber. Multiple sets of spirals are fixed inside the flow guide cavity. An impeller is fixed to one end of the main shaft near the spiral. A connecting port is provided at the bottom outer side of the flow guide cavity. A Roots vacuum pump is fixed to the bottom inner side of the heat dissipation chamber. Multiple sets of metal bellows are fixed to the output end of the Roots vacuum pump. The end of the metal bellows away from the Roots vacuum pump is connected to the vacuum chamber. The output end of the Roots vacuum pump is connected to the connecting port.

[0008] Preferably, the cooling assembly includes a drain port, a liquid storage chamber, a submersible motor, a liquid pipe, and a nozzle. Multiple drain ports are provided on the outer side of the connecting plate. A liquid storage chamber is fixedly connected to the bottom of the inner side of the heat dissipation chamber. A submersible motor is fixedly connected to the bottom of the inner side of the liquid storage chamber. A liquid pipe is fixedly connected to the output end of the submersible motor. The liquid pipe is located outside the heat dissipation chamber. A nozzle is fixedly connected to the end of the liquid pipe away from the submersible motor. The nozzle is located inside the vacuum protective shell.

[0009] Preferably, the vibration damping and noise reduction mechanism includes a noise reduction cavity, a ceramic water-absorbing plate A, a ceramic water-absorbing plate B, a sponge cavity, a guide plate A, and a guide plate B. The noise reduction cavity is fixedly connected to the bottom of the heat dissipation chamber, the ceramic water-absorbing plate A is fixedly connected to the top of the inner side of the noise reduction cavity, the ceramic water-absorbing plate B is fixedly connected to the middle of the inner side of the noise reduction cavity, a sponge cavity is provided inside the noise reduction cavity, the guide plate A is fixedly connected to the top of the outer side of the noise reduction cavity, and the guide plate B is provided at the bottom of the inner side of the noise reduction cavity.

[0010] Preferably, the flange A is fixedly connected to the permanent magnet synchronous motor by welding, and the connection is achieved by using a tungsten inert gas welding head and inert gas protection.

[0011] Preferably, a layer of sponge material is laid on the top outer side of the guide plate A, and some uneven defects are set on the surface of the sponge.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this flywheel energy storage motor and vacuum operation device, by using the flywheel energy storage component and vibration damping and noise reduction mechanism, when a small amount of gas seeps into the vacuum chamber, the gas inside the vacuum chamber is discharged through the cooperation of the guide cavity, spiral and impeller, eliminating the need for long-term operation of the Roots vacuum pump, reducing energy consumption and saving costs. At the same time, the Roots vacuum pump is separated from the vacuum chamber, and a noise reduction cavity is set between the Roots vacuum pump and the vacuum chamber, further reducing the impact of vibration and noise generated by the Roots vacuum pump during operation on the operation of the internal parts of the vacuum chamber, and improving the practicality and reliability of the device.

[0013] 2. In this flywheel energy storage motor and vacuum operation device, the connection between flange A and permanent magnet synchronous motor is welded using a tungsten inert gas welding head and inert gas protection. This concentrates energy density in a small area, reduces flange A deformation, and minimizes the impact of flange A deformation on subsequent sealing. Inert gas protection can isolate the welding area from the possibility of oxygen, water vapor, and other gases in the air affecting the welding area, improving welding quality and ensuring the airtightness of the welding area. The sponge material on the top of the guide plate A and any defects on the sponge can absorb coolant, reducing coolant splashing outside the vacuum chamber and further improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the permanent magnet synchronous motor of the present invention; Figure 3 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the flywheel assembly of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A; Figure 6 This is a schematic diagram of the leakage port structure of the present invention; Figure 7 This is a schematic diagram of the silencing cavity of the present invention.

[0015] The meanings of the labels in the diagram are as follows: 1. Vacuum protective shell; 2. Heat dissipation chamber; 3. Motor chamber; 4. Fixing ring; 5. Permanent magnet synchronous motor; 6. Main shaft; 7. Magnetic levitation bearing A; 8. Flywheel assembly; 9. Flange A; 10. Knife edge; 11. Flange B; 12. Fastening screw; 13. Vacuum chamber; 14. Magnetic levitation bearing B; 15. Flow guide chamber; 16. Helix; 17. Impeller; 18. Connection port; 19. Metal bellows; 20. Roots vacuum pump; 21. Connecting plate; 22. Leakage port; 23. Silencing chamber; 24. Ceramic water absorption plate A; 25. Ceramic water absorption plate B; 26. Sponge chamber; 27. Flow guide plate A; 28. Flow guide plate B; 29. ​​Liquid storage chamber; 30. Submersible motor; 31. Liquid pipeline; 32. Nozzle. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] During use, the device relies heavily on the vacuum pump unit, which needs to periodically extract the air from inside the device. If the gas concentration inside the device is high, the flywheel will suffer wear due to gas friction when rotating at high speed. The resulting violent air turbulence will cause the device temperature to rise, thus affecting the service life of the device. Long-term operation of the vacuum pump unit will lead to higher energy consumption and higher costs.

[0018] Therefore, the present invention provides a flywheel energy storage motor and a vacuum operation device, see [link to relevant documentation]. Figure 1 As shown, it includes a vacuum protective shell 1, a heat dissipation chamber 2 is fixedly connected to the bottom of the outer side of the vacuum protective shell 1, a motor chamber 3 is fixedly connected to the top of the outer side of the vacuum protective shell 1, a fixing ring 4 is fixedly connected inside the motor chamber 3, a permanent magnet synchronous motor 5 is installed in the middle of the fixing ring 4, and one set of output terminals of the permanent magnet synchronous motor 5 passes through the motor chamber 3. A flywheel energy storage component is located inside a vacuum protective shell 1. The flywheel energy storage component includes a sealing mechanism and a vacuum extraction mechanism. A cooling assembly is located inside the motor chamber 3. The cooling assembly includes a vibration damping and noise reduction mechanism, which is used in conjunction with the vibration damping and noise reduction mechanism.

[0019] The flywheel energy storage assembly includes a main shaft 6, a magnetic levitation bearing A7, a flywheel assembly 8, a vacuum chamber 13, and a magnetic levitation bearing B14. The output end of the permanent magnet synchronous motor 5 is fixedly connected to the main shaft 6. The vacuum chamber 13 is fixedly connected inside the vacuum protective shell 1. The vacuum chamber 13 is equipped with an explosion-proof coating to reduce losses caused by accidental flywheel breakage. The magnetic levitation bearing A7 is fixedly connected to the top inner side of the vacuum chamber 13, and the main shaft 6 passes through the interior of the magnetic levitation bearing A7. The magnetic levitation bearing B14 is fixedly connected to the bottom inner side of the vacuum chamber 13, and the main shaft 6 passes through the interior of the magnetic levitation bearing B14. The flywheel assembly 8 is fixedly connected to the outside of the main shaft 6. The flywheel assembly 8 is composed of multiple flywheels. The high-rigidity main shaft 6 supports multiple flywheels, achieving synchronization of various flywheel states to reduce the possibility of efficiency loss due to differences in speed and torque imbalance among multiple flywheels. Meanwhile, the flywheel is cast using high-strength, low-density materials and has a thicker edge shape. Since the moment of inertia is proportional to the square of the distance from the mass to the main shaft, the greater the contribution of the mass distribution to the moment of inertia, the more it contributes to the moment of inertia. This increases the moment of inertia and promotes the energy storage efficiency of the flywheel. The main shaft 6 does not directly contact the magnetic levitation bearings A7 and B14. When the magnetic levitation bearings A7 and B14 are energized, they levitate the main shaft 6. Through active electromagnetic control, the position of the main shaft 6 within the magnetic levitation bearings A7 and B14 can be precisely adjusted, resulting in extremely high stability. The advantage of using magnetic levitation bearings A7 and B14 is that, compared to traditional bearings, mechanical contact is completely eliminated, eliminating the need for regular replacement and significantly reducing maintenance costs.

[0020] The sealing mechanism includes a flange A9, a knife edge 10, a flange B11, and fastening screws 12. The flange A9 is fixed to the bottom outer side of the permanent magnet synchronous motor 5, and the flange B11 is fixed to the top outer side of the vacuum chamber 13. A knife edge 10 is provided inside the flange A9. Multiple sets of fastening screws 12 are provided in the middle outer side of the flange A9. A fastening screw 12 passes through the middle inner side of the flange B11.

[0021] The vacuum extraction mechanism includes a flow guide cavity 15, a spiral 16, an impeller 17, a connection port 18, a metal bellows 19, a Roots vacuum pump 20, and a connecting plate 21. The flow guide cavity 15 is provided at the bottom outer side of the vacuum chamber 13. Multiple sets of spirals 16 are fixed inside the flow guide cavity 15. An impeller 17 is fixed at one end of the main shaft 6 near the spiral 16. A connection port 18 is provided at the bottom outer side of the flow guide cavity 15. A Roots vacuum pump 20 is fixed at the bottom inner side of the heat dissipation chamber 2. Multiple sets of metal bellows 19 are fixed at the output end of the Roots vacuum pump 20. The end of the metal bellows 19 away from the Roots vacuum pump 20 is connected to the vacuum chamber 13. The output end of the Roots vacuum pump 20 is connected to the connection port 18.

[0022] The cooling assembly includes a drain port 22, a liquid storage chamber 29, a submersible motor 30, a liquid pipe 31, and a nozzle 32. Multiple drain ports 22 are provided on the outer side of the connecting plate 21. The liquid storage chamber 29 is fixedly connected to the bottom inner side of the heat dissipation chamber 2. The submersible motor 30 is fixedly connected to the bottom inner side of the liquid storage chamber 29. The output end of the submersible motor 30 is fixedly connected to the liquid pipe 31. The liquid pipe 31 is located outside the heat dissipation chamber 2. The nozzle 32 is fixedly connected to the end of the liquid pipe 31 away from the submersible motor 30. The nozzle 32 is located inside the vacuum protective shell 1.

[0023] The vibration damping and noise reduction mechanism includes a noise reduction cavity 23, a ceramic water-absorbing plate A24, a ceramic water-absorbing plate B25, a sponge cavity 26, a flow guide plate A27, and a flow guide plate B28. The noise reduction cavity 23 is fixedly connected to the bottom inner side of the heat dissipation chamber 2. The ceramic water-absorbing plate A24 is fixedly connected to the top inner side of the noise reduction cavity 23. The ceramic water-absorbing plate B25 is fixedly connected to the middle inner side of the noise reduction cavity 23. The sponge cavity 26 is provided inside the noise reduction cavity 23. The flow guide plate A27 is fixedly connected to the top outer side of the noise reduction cavity 23. The flow guide plate B28 is provided at the bottom inner side of the noise reduction cavity 23.

[0024] During operation, the device is first connected to an external power supply, and then to an external control module. The electronic components in this technical solution are driven by the cooperation of the external control module and the power supply. The external control module is existing technology and should be well known to those skilled in the art, so it will not be described in detail in this technical solution.

[0025] Before connecting the permanent magnet synchronous motor 5 to the power supply and causing it to rotate, the magnetic levitation bearings A7 and B14 are energized to make them magnetic, supporting the two ends of the main shaft 6 located inside the vacuum chamber 13. This makes the main shaft 6 driving the flywheel assembly 8 more stable and reliable inside the vacuum chamber 13. A copper sheet conforming to the shape of the knife edge 10 is placed inside the knife edge 10. Then, flange B11 is brought close to flange A9, and fastening screw 12 is inserted through flange B11 and flange A9. The operator rotates the fastening screw 12 to tighten flange B11 and flange A9. During the tightening process... Flanges A9 and B11 compress the copper sheet inside the blade 10, causing it to deform and seal the gap between flanges B11 and A9. This greatly enhances the sealing ability of flanges A9 and B11, reducing the possibility of outside air intruding into the vacuum chamber 13 from the joint between flanges B11 and A9. This drives the Roots vacuum pump 20 to start working, extracting air from the vacuum chamber 13 through the metal bellows 19. The metal bellows 19 is made of metal, providing good sealing and durability while also being bendable. As the Roots vacuum pump 20 operates, the gas inside the vacuum chamber 13 is gradually extracted, eventually approaching a vacuum.

[0026] At this point, the permanent magnet synchronous motor 5 starts working, and the main shaft 6 begins to rotate at high speed in the middle of the magnetic levitation bearing A7 and the magnetic levitation bearing B14. Because the inside of the vacuum chamber 13 is close to a vacuum, the gas friction is basically zero. Therefore, the main shaft 6 and the flywheel assembly 8 rotate rapidly inside the vacuum chamber 13 under the drive of the permanent magnet synchronous motor 5. The rotation generates a strong inertia, which in turn forms electrical energy storage in the traditional sense. Because the inside of the vacuum chamber 13 is in a near-vacuum state, the energy storage efficiency is high.

[0027] When using the flywheel assembly 8 for energy storage, if air enters the vacuum chamber 13, it will generate air turbulence, which will affect the energy storage efficiency. At the same time, long-term operation of the Roots vacuum pump 20 will result in significant energy consumption. Therefore, during the rotation of the flywheel assembly 8, the main shaft 6 drives the impeller 17 to rotate at high speed inside the guide chamber 15. When gas molecules appear inside the vacuum chamber 13, they rapidly dissipate within the vacuum chamber 13. When the gas molecules come into contact with the impeller 17, the high-speed rotating impeller 17 will collide with the gas molecules at high frequency. The impeller 17 transfers a huge rotational kinetic energy to the gas molecules, giving them tangential velocity and propelling them away in a specific direction. At this time, the spiral 16 on the inner side of the guide chamber 15 forms a channel, forcing the gas molecules to move along the spiral 16 until they are discharged through the connection port 18 and enter the Roots vacuum pump 20, thereby achieving the treatment of gas molecules inside the vacuum chamber 13.

[0028] By using the guide cavity 15, the spiral 16 and the impeller 17 to expel a small number of gas molecules from the vacuum chamber 13, there is no need to run the Roots vacuum pump 20 for a long time to evacuate the vacuum chamber 13. Although the main shaft 6 drives the impeller 17 to rotate, the impact on the efficiency of flywheel energy storage is extremely limited, but it saves energy consumption from running the Roots vacuum pump 20 for a long time. Overall, the energy utilization rate is improved.

[0029] Coolant is injected into the connecting plate 21. During the operation of the device, the driving liquid storage chamber 29 pumps the coolant out of the connecting plate 21. The coolant enters the liquid pipe 31 and exchanges heat with the outside. Then, it is sprayed onto the surface of the vacuum chamber 13 by the nozzle 32. During long-term use, the magnetic levitation bearing A7 will generate heat due to the current. This heat accumulation will affect the stability of the spindle 6 inside the vacuum chamber 13. Therefore, by spraying coolant onto the surface of the vacuum chamber 13, the vacuum chamber 13 is cooled as a whole, reducing the possibility of heat accumulation inside the magnetic levitation bearing A7 and increasing the stability of the magnetic levitation bearing A7 and magnetic levitation bearing B14 during use.

[0030] When the coolant flows down from the surface of the vacuum chamber 13, it falls into the guide plate A27 at the top of the silencing chamber 23. The guide plate A27 is set with a certain slope. The coolant flows into the interior of the guide plate A27. The sponge cavity 26 formed between the ceramic water-absorbing plate A24 and the ceramic water-absorbing plate B25 is filled with shock-absorbing material, such as silicone rubber. However, water-permeable holes are pre-made inside the silicone rubber so that the coolant can pass through the sponge cavity 26 smoothly. At the same time, the honeycomb structure inside the ceramic water-absorbing plate A24 and the ceramic water-absorbing plate B25 can intercept a certain amount of coolant.

[0031] During operation, the Roots vacuum pump 20 generates significant noise and vibration. In this technical solution, a silencing chamber 23 is installed between the Roots vacuum pump 20 and the vacuum chamber 13, isolating the Roots vacuum pump 20 from the vacuum chamber 13. This reduces the possibility of vibration transmission into the vacuum chamber 13 and affecting the magnetic levitation bearings A7 and B14 inside the vacuum chamber 13. The noise generated during the operation of the Roots vacuum pump 20, upon entering the silencing chamber 23, will also enter the ceramic suction plate B25 and ceramic suction plate A24. The porous structure allows sound waves to collide everywhere, weakening noise. At the same time, the ceramic water-absorbing plates A24 and B25 are filled with liquid, increasing viscosity and converting sound energy into heat energy more efficiently. Heat energy affects the absorption effect of ceramic water-absorbing plates A24 and B25 on sound energy of different frequencies, which may affect the absorption of specific frequencies. Therefore, the continuous exchange of coolant inside ceramic water-absorbing plates A24 and B25 keeps their temperature stable, further improving the stability and reliability of the device.

[0032] By using the flywheel energy storage component and vibration damping and noise reduction mechanism, when a small amount of gas seeps into the vacuum chamber 13, the gas inside the vacuum chamber 13 is discharged through the cooperation of the guide chamber 15, the spiral 16 and the impeller 17. This eliminates the need for the Roots vacuum pump 20 to operate for a long time, reducing energy consumption and saving costs. At the same time, the Roots vacuum pump 20 is isolated from the vacuum chamber 13, and a noise reduction chamber 23 is set between the Roots vacuum pump 20 and the vacuum chamber 13, further reducing the impact of the vibration and noise generated by the Roots vacuum pump 20 during operation on the operation of the internal parts of the vacuum chamber 13, thus improving the practicality and reliability of the device.

[0033] For details, see Figure 1 As shown, the flange A9 and the permanent magnet synchronous motor 5 are fixedly connected by welding, and the connection is achieved by using a tungsten inert gas welding head and inert gas protection.

[0034] The top outer side of the guide plate A27 is covered with a layer of sponge material, and some uneven defects are set on the surface of the sponge.

[0035] By using a tungsten inert gas welding head and inert gas protection to weld the connection between flange A9 and permanent magnet synchronous motor 5, energy density can be concentrated in a small area, reducing the deformation of flange A9 and minimizing the impact of flange A9 deformation on subsequent sealing. Inert gas protection can isolate the welding area from the possibility of oxygen, water vapor and other gases in the air affecting the welding area, improving welding quality and ensuring the airtightness of the welding area. The sponge material on the top of the guide plate A27 and the defects on the sponge can absorb coolant, reducing the splashing of coolant on the outside of vacuum chamber 13, further improving the practicality of the device.

[0036] In summary, this effectively solves the problems of heavy reliance on vacuum pumps during use, the need to periodically extract air from the device, the risk of significant gas friction losses during high-speed rotation due to high gas concentrations, the resulting severe air turbulence leading to increased device temperature and reduced lifespan, and the increased energy consumption and costs associated with prolonged operation of the vacuum pumps.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flywheel energy storage motor and a vacuum operating device, comprising a vacuum protective shell (1), characterized in that: A heat dissipation chamber (2) is fixed to the bottom of the outer side of the vacuum protective shell (1), and a motor chamber (3) is fixed to the top of the outer side of the vacuum protective shell (1). A fixing ring (4) is fixed inside the motor chamber (3), and a permanent magnet synchronous motor (5) is installed in the middle of the fixing ring (4). One set of output terminals of the permanent magnet synchronous motor (5) passes through the motor chamber (3). The flywheel energy storage component is located inside the vacuum protective shell (1), and the flywheel energy storage component includes a sealing mechanism and a vacuum extraction mechanism. The cooling assembly is located inside the motor chamber (3). The cooling assembly includes a vibration damping and noise reduction mechanism, which is used in conjunction with the vibration damping and noise reduction mechanism.

2. The flywheel energy storage motor and vacuum operation device according to claim 1, characterized in that: The flywheel energy storage assembly includes a main shaft (6), a magnetic levitation bearing A (7), a flywheel assembly (8), a vacuum chamber (13), and a magnetic levitation bearing B (14). The output end of the permanent magnet synchronous motor (5) is fixedly connected to the main shaft (6). The vacuum chamber (13) is fixedly connected inside the vacuum protective shell (1). The magnetic levitation bearing A (7) is fixedly connected to the top of the inner side of the vacuum chamber (13). The main shaft (6) passes through the interior of the magnetic levitation bearing A (7). The magnetic levitation bearing B (14) is fixedly connected to the bottom of the inner side of the vacuum chamber (13). The main shaft (6) passes through the interior of the magnetic levitation bearing B (14). The flywheel assembly (8) is fixedly connected to the outer side of the main shaft (6). The main shaft (6) does not directly contact the magnetic levitation bearing A (7) and the magnetic levitation bearing B (14).

3. The flywheel energy storage motor and vacuum operation device according to claim 2, characterized in that: The sealing mechanism includes flange A (9), blade (10), flange B (11) and fastening screws (12). Flange A (9) is fixed to the bottom of the outer side of the permanent magnet synchronous motor (5), and flange B (11) is fixed to the top of the outer side of the vacuum chamber (13). Blade (10) is opened inside flange A (9). Multiple sets of fastening screws (12) are provided in the middle of the outer side of flange A (9). Fastening screws (12) pass through the middle of the inner side of flange B (11).

4. The flywheel energy storage motor and vacuum operation device according to claim 3, characterized in that: The vacuum extraction mechanism includes a flow guide cavity (15), a spiral (16), an impeller (17), a connection port (18), a metal bellows (19), a Roots vacuum pump (20), and a connecting plate (21). The flow guide cavity (15) is provided at the bottom outside the vacuum chamber (13). Multiple spirals (16) are fixed inside the flow guide cavity (15). An impeller (17) is fixed at one end of the main shaft (6) near the spiral (16). A connection port (18) is provided at the bottom outside the flow guide cavity (15). A Roots vacuum pump (20) is fixed at the bottom inside the heat dissipation chamber (2). Multiple metal bellows (19) are fixed at the output end of the Roots vacuum pump (20). The end of the metal bellows (19) away from the Roots vacuum pump (20) is connected to the vacuum chamber (13). The output end of the Roots vacuum pump (20) is connected to the connection port (18).

5. The flywheel energy storage motor and vacuum operation device according to claim 4, characterized in that: The cooling assembly includes a drain port (22), a liquid storage chamber (29), a submersible motor (30), a liquid pipe (31), and a nozzle (32). Multiple drain ports (22) are provided on the outer side of the connecting plate (21). The liquid storage chamber (29) is fixedly connected to the bottom of the inner side of the heat dissipation chamber (2). The submersible motor (30) is fixedly connected to the bottom of the inner side of the liquid storage chamber (29). The output end of the submersible motor (30) is fixedly connected to the liquid pipe (31). The liquid pipe (31) is located outside the heat dissipation chamber (2). The nozzle (32) is fixedly connected to the end of the liquid pipe (31) away from the submersible motor (30). The nozzle (32) is located inside the vacuum protective shell (1).

6. The flywheel energy storage motor and vacuum operation device according to claim 1, characterized in that: The vibration damping and noise reduction mechanism includes a noise reduction cavity (23), a ceramic water absorption plate A (24), a ceramic water absorption plate B (25), a sponge cavity (26), a flow guide plate A (27), and a flow guide plate B (28). The noise reduction cavity (23) is fixedly connected to the bottom of the inner side of the heat dissipation chamber (2). The ceramic water absorption plate A (24) is fixedly connected to the top of the inner side of the noise reduction cavity (23). The ceramic water absorption plate B (25) is fixedly connected to the middle of the inner side of the noise reduction cavity (23). The sponge cavity (26) is provided inside the noise reduction cavity (23). The flow guide plate A (27) is fixedly connected to the top of the outer side of the noise reduction cavity (23). The flow guide plate B (28) is provided at the bottom of the inner side of the noise reduction cavity (23).

7. The flywheel energy storage motor and vacuum operation device according to claim 3, characterized in that: The flange A (9) and the permanent magnet synchronous motor (5) are fixedly connected by welding, and the connection is achieved by using a tungsten electrode welding head and inert gas protection.

8. The flywheel energy storage motor and vacuum operation device according to claim 6, characterized in that: The top outer side of the guide plate A (27) is covered with a layer of sponge material, and some uneven defects are set on the surface of the sponge.

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