Flywheel energy storage unit base

Abstract

The utility model provides a flywheel energy storage unit base, and belongs to the technical field of flywheel energy storage. The first anti-vibration pad is connected with the energy storage unit, the second anti-vibration pad is connected with the mounting surface, the buffer block is arranged between the first anti-vibration pad and the second anti-vibration pad, one side of the buffer block is fixedly connected with the first anti-vibration pad, and the other side of the buffer block is fixedly connected with the second anti-vibration pad; the device provides enough strength and stability for the energy storage unit and can absorb vibration at the same time. And the influence of seismic waves can be effectively resisted. The influence of earthquakes or shaking in the using process on the energy storage unit can be reduced, the energy storage unit is protected against damage, the operation stability is improved, and the reliability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flywheel energy storage, in particular to a flywheel energy storage unit base. Background Art

[0002] Flywheel energy storage technology is a physical energy storage method that uses a high-speed rotating flywheel rotor to store energy. During energy storage, electrical energy is converted by a power converter to drive a motor, which accelerates the flywheel's rotation, storing the energy as kinetic energy. During energy release, the flywheel drives the motor to generate electricity, completing the conversion of mechanical kinetic energy into electrical energy. To reduce friction losses during flywheel rotation, flywheel energy storage systems typically use magnetic bearings. Magnetic bearings are categorized as passive magnetic bearings (PMBs) and active magnetic bearings (AMBs). Passive magnetic bearings, such as high-temperature superconducting magnetic bearings, utilize the diamagnetism of superconductors to generate repulsive forces to levitate the flywheel. Active magnetic bearings are electromagnetic levitation systems that utilize sensors, control systems, and power amplifiers to achieve stable rotor suspension. Flywheels require a stable environment to avoid external interference during suspension.

[0003] Therefore, there is an urgent need for a base that can better buffer the flywheel energy storage unit and avoid external interference. Utility Model Content

[0004] In view of this, the present invention utilizes a composite base structure to stably control the magnetic bearing, which is not disturbed by external vibrations, ensuring that the flywheel rotor always rotates in the center position, and eliminating the risk of flywheel loss of control caused by external vibrations.

[0005] The technical solution of the present utility model is implemented as follows: a flywheel energy storage unit base includes a first shock-absorbing pad and a second shock-absorbing pad, the first shock-absorbing pad is connected to the energy storage unit, the second shock-absorbing pad is connected to the mounting surface, and also includes a buffer block, the buffer block is arranged between the first shock-absorbing pad and the second shock-absorbing pad, one side of the buffer block is fixedly connected to the first shock-absorbing pad, and the other side of the buffer block is fixedly connected to the second shock-absorbing pad.

[0006] On the basis of the above technical solution, preferably, the buffer block includes a first connecting plate, a second connecting plate and a buffer body, the first connecting plate is arranged on one side of the buffer body, and the second connecting plate is arranged on the other side of the buffer body.

[0007] On the basis of the above technical solution, preferably, the first connecting plate is fixedly connected to the first shock-absorbing pad, and the second connecting plate is fixedly connected to the second shock-absorbing pad.

[0008] On the basis of the above technical solution, preferably, a plurality of first sealing plates are provided on one side where the first connecting plate is connected to the buffer body, and the plurality of first sealing plates are all embedded in the buffer block.

[0009] On the basis of the above technical solution, preferably, a plurality of second sealing plates are provided on one side where the second connecting plate is connected to the buffer body, and the plurality of second sealing plates are all embedded in the buffer block.

[0010] On the basis of the above technical solution, preferably, the buffer block further includes a lead core, which is embedded in the buffer body and arranged between the first connecting plate and the second connecting plate.

[0011] On the basis of the above technical solution, preferably, the buffer block further includes a reinforcing sheet, and the reinforcing sheets include a plurality of reinforcing sheets, and the plurality of reinforcing sheets are all embedded in the buffer body.

[0012] On the basis of the above technical solution, preferably, the plurality of reinforcing sheets are evenly distributed and arranged on both sides of the lead core.

[0013] On the basis of the above technical solution, preferably, the plurality of reinforcing plates are arranged parallel to the first connecting plate and the second connecting plate.

[0014] On the basis of the above technical solution, preferably, the energy storage unit is connected to an energy storage base, the bolt passes through the energy storage base, the first shock-absorbing pad and the first connecting plate in sequence, and the other end of the bolt is matched with a first nut; it also includes a stud, one end of the stud is fixedly set in the mounting surface, and the other end of the stud passes through the second shock-absorbing pad and the second connecting plate in sequence and is matched with a second nut.

[0015] On the basis of the above technical solution, preferably,

[0016] The flywheel energy storage unit base of the utility model has the following beneficial effects compared with the prior art:

[0017] The first and second shock-absorbing pads are rubber shock-absorbing pads. They serve as shock-absorbing layers for the energy storage unit and the mounting surface. They have the ability to absorb vibrations and reduce impacts while also reducing direct contact between the equipment and hard surfaces. This can maintain structural stability while reducing the impact of vibration on the equipment. Rubber has sufficient vertical stiffness to withstand vertical loads and has good elasticity. Rubber also has a large shear deformation capacity to meet the horizontal displacement of the upper structure. The material of the first and second shock-absorbing pads is natural rubber, which has good elasticity and wear resistance and can also provide good vibration absorption effect.

[0018] This device provides sufficient strength and stability for the energy storage unit while absorbing vibrations. It can also effectively resist the effects of seismic waves. It can reduce the impact of earthquakes or shaking during use on the energy storage unit, protecting the unit from damage, ensuring operational stability, and increasing equipment reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a cross-sectional view of a flywheel energy storage unit base of the utility model;

[0021] Figure 2 For this utility model Figure 1 Schematic diagram of the structure. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1 and 2 As shown, a flywheel energy storage unit base includes a first shock-absorbing pad 21 and a second shock-absorbing pad 22. The first shock-absorbing pad 21 is connected to the energy storage unit 1, and the second shock-absorbing pad 22 is connected to the mounting surface 3. The base also includes a buffer block 4, which is disposed between the first and second shock-absorbing pads 21 and 22. One side of the buffer block 4 is fixedly connected to the first shock-absorbing pad 21, and the other side of the buffer block 4 is fixedly connected to the second shock-absorbing pad 22. The first and second shock-absorbing pads 21 and 22 are rubber shock-absorbing pads that serve as a shock-absorbing layer between the energy storage unit 1 and the mounting surface 3, absorbing vibration and reducing impact while also reducing direct contact between the device and hard surfaces. This maintains structural stability while reducing the impact of vibration on the device. Rubber has sufficient vertical stiffness to withstand vertical loads and good elasticity. Rubber also has a large shear deformation capacity to accommodate horizontal displacement of the upper structure. The first and second shock-absorbing pads 21 and 22 are made of natural rubber, which has good elasticity and wear resistance and provides excellent vibration absorption. The thickness of the first and second anti-vibration pads 21, 22 is generally between 10 mm and 25 mm to absorb vibration and reduce noise. A buffer block 4 is located between the first and second anti-vibration pads 21, 22 to further reduce vibration of the flywheel energy storage unit. The mounting surface 3 can be the ground or concrete.

[0024] The first shock-absorbing pad 21 serves as a shock-absorbing layer connecting the energy storage unit 1 and the buffer block 4, thereby reducing the impact of vibration on the energy storage unit 1 while maintaining structural stability. The first shock-absorbing pad 21 has sufficient vertical stiffness to withstand vertical loads, good elasticity, and large shear deformation to meet the horizontal displacement of the upper structure; the second shock-absorbing pad 22 serves as a shock-absorbing layer connecting the mounting surface 3 and the buffer block 4, thereby reducing the impact of vibration on the equipment while maintaining structural stability. The second shock-absorbing pad 22 has sufficient vertical stiffness to withstand vertical loads, good elasticity, and large shear deformation to meet the horizontal displacement of the upper structure.

[0025] This provides sufficient strength and stability for the energy storage unit 1 while absorbing vibrations. It also effectively resists the effects of seismic waves. This reduces the impact of earthquakes or shaking during use on the energy storage unit 1, protecting it from damage and ensuring operational stability, thereby increasing equipment reliability.

[0026] The buffer block 4 includes a first connecting plate 41, a second connecting plate 42, and a buffer body 43. The first connecting plate 41 is arranged on one side of the buffer body 43, and the second connecting plate 42 is arranged on the other side of the buffer body 43. The buffer body 43 is made of multiple layers of rubber. This structure enables the buffer body 43 to withstand the gravity and horizontal forces of the structure in the vertical direction. The first connecting plate 41 and the second connecting plate 42 are plate-like objects with load-bearing capacity, such as steel plates or concrete slabs. Steel plates are preferably used because they have stronger load and pressure resistance and are easier to use for connection.

[0027] The first connecting plate 41 is fixedly connected to the first shock-absorbing pad 21 , and the second connecting plate 42 is fixedly connected to the second shock-absorbing pad 22 .

[0028] A plurality of first sealing plates 411 are provided on one side where the first connecting plate 41 is connected to the buffer body 43. Each of the first sealing plates 411 is embedded in the buffer block 43. To increase the connection strength between the first connecting plate 41 and the buffer body 43, the first sealing plates 411 are integrally formed with the first connecting plate 41 and embedded in the buffer block 43, providing a more secure connection and preventing the first connecting plate 41 and the buffer body 43 from moving due to horizontal forces.

[0029] A plurality of second sealing plates 421 are provided on one side where the second connecting plate 42 is connected to the buffer body 43, and each of the plurality of second sealing plates 421 is embedded in the buffer block 43. To increase the connection strength between the second connecting plate 42 and the buffer body 43, the second sealing plates 421 are integrally formed with the second connecting plate 42 and embedded in the buffer block 43, thereby strengthening the connection and preventing the second connecting plate 42 and the buffer body 43 from moving due to horizontal forces.

[0030] The buffer block 4 also includes a lead core 44, which is embedded in the buffer body 43 and disposed between the first connecting plate 41 and the second connecting plate 42. The lead core 44 is vertically pressed into the center of the buffer block 4. During earthquake motion, the lead core 44 utilizes its elastic-plastic properties to dissipate vibration energy. The diameter of the lead core 44 can be adjusted as needed to alter the buffer block 4's ability to absorb and dissipate energy.

[0031] The lead core 44 is pressed into the center of the buffer body 43. After being pressed in, the lead core 44 is integrated with the buffer body 43. At this time, the buffer body 43 is an integrated seismic isolation device consisting of a rubber stable recovery device and a lead energy absorption device. Rubber, as an elastic body, has insufficient energy absorption, so the lead core 44 is added to the buffer body 43 to provide a certain amount of damping, so that the seismic force of the lower structure is redistributed, and the displacement of the seismic isolation layer will not be large, which has a good seismic isolation effect; the lead core 44 is simplified to an ideal elastic-plastic material, using a bilinear isotropic strengthening model, and the tangent modulus is 0MPa. It can reduce horizontal seismic effects and withstand large vertical loads at the same time. Rubber, as an elastic body, has insufficient energy absorption, so the lead core 44 is added to the rubber buffer body 43 to provide a certain amount of damping, so that the seismic force of the lower structure is redistributed, and the displacement of the seismic isolation layer will not be large. It can deform and absorb energy during an earthquake and quickly return to its original state after the earthquake, which has a good seismic isolation effect.

[0032] The buffer block 4 further includes a reinforcement sheet 45, which includes a plurality of reinforcement sheets 45, each of which is embedded in the buffer body 43. The reinforcement sheet 45 is a layered object with a certain structural strength, and is arranged in the layered buffer block 4. The reinforcement sheet 45 can be a structure such as a wooden board or a steel plate, preferably a steel plate.

[0033] The plurality of reinforcing sheets 45 are evenly distributed on both sides of the lead core 44. This allows for a more uniform load-bearing capacity on both sides of the lead core 44, resulting in a better effect. The plurality of reinforcing sheets 45 are parallel to the first connecting plate 41 and the second connecting plate 42. Parallel reinforcing sheets 45 provide a more uniform load-bearing capacity and a better shock absorption effect.

[0034] The energy storage unit 1 is connected to an energy storage base 11, and the bolt passes through the energy storage base 11, the first shock-absorbing pad 21 and the first connecting plate 41 in sequence, and the other end of the bolt is matched with a first nut; it also includes a stud, one end of which is fixedly set in the mounting surface 3, and the other end of the stud passes through the second shock-absorbing pad 22 and the second connecting plate 42 in sequence and is matched with a second nut. As shown in the figure, the bolt and the first nut firmly fix the energy storage base 11, the first shock-absorbing pad 21 and the first connecting plate 41, and the stud and the second nut firmly fix the second shock-absorbing pad 22 and the second connecting plate 42. The buffer body 43 is filled with a lead core 44 and a number of the reinforcing sheets 45 by rubber heat sealing to increase the compressive strength of the buffer body 43.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flywheel energy storage unit base, comprising a first shock-absorbing pad (21) and a second shock-absorbing pad (22), wherein the first shock-absorbing pad (21) is connected to the energy storage unit (1), and the second shock-absorbing pad (22) is connected to the mounting surface (3), characterized in that: The device further comprises a buffer block (4), wherein the buffer block (4) is arranged between the first shock-absorbing pad (21) and the second shock-absorbing pad (22), wherein one side of the buffer block (4) is fixedly connected to the first shock-absorbing pad (21), and the other side of the buffer block (4) is fixedly connected to the second shock-absorbing pad (22).

2. A flywheel energy storage unit base according to claim 1, characterized in that: The buffer block (4) comprises a first connecting plate (41), a second connecting plate (42) and a buffer body (43), wherein the first connecting plate (41) is arranged on one side of the buffer body (43), and the second connecting plate (42) is arranged on the other side of the buffer body (43).

3. A flywheel energy storage unit base according to claim 2, characterized in that: The first connecting plate (41) is fixedly connected to the first shock-absorbing pad (21), and the second connecting plate (42) is fixedly connected to the second shock-absorbing pad (22).

4. A flywheel energy storage unit base according to claim 2, characterized in that: A plurality of first sealing plates (411) are provided on one side where the first connecting plate (41) is connected to the buffer body (43), and the plurality of first sealing plates (411) are all embedded in the buffer block (43).

5. The flywheel energy storage unit base according to claim 2, characterized in that: A plurality of second sealing plates (421) are provided on one side where the second connecting plate (42) is connected to the buffer body (43), and the plurality of second sealing plates (421) are embedded in the buffer block (43).

6. A flywheel energy storage unit base according to claim 2, characterized in that: The buffer block (4) further comprises a lead core (44), wherein the lead core (44) is embedded in the buffer body (43), and the lead core (44) is arranged between the first connecting plate (41) and the second connecting plate (42).

7. A flywheel energy storage unit base according to claim 6, characterized in that: The buffer block (4) further comprises a reinforcement sheet (45), wherein the reinforcement sheet (45) comprises a plurality of reinforcement sheets, and the plurality of reinforcement sheets (45) are all embedded in the buffer body (43).

8. A flywheel energy storage unit base according to claim 7, characterized in that: The plurality of reinforcing sheets (45) are evenly distributed and arranged on both sides of the lead core (44).

9. The flywheel energy storage unit base according to claim 7, characterized in that: The plurality of reinforcing plates (45) are arranged parallel to the first connecting plate (41) and the second connecting plate (42).

10. The flywheel energy storage unit base according to claim 2, characterized in that: The energy storage unit (1) is connected to an energy storage base (11), the bolts sequentially pass through the energy storage base (11), the first shockproof pad (21) and the first connecting plate (41), and the other end of the bolts is matched with a first nut; and further comprises a stud, one end of the stud is fixedly arranged in the mounting surface (3), and the other end of the stud sequentially passes through the second shockproof pad (22) and the second connecting plate (42), and is matched with a second nut.

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