Magnetic levitation energy storage flywheel motor

Abstract

The present invention discloses a magnetic levitation energy storage flywheel motor, comprising a shell, an electronic control device being provided on the outside of the shell, the electronic control device being used to operate electric power, mounting bases being fixedly provided at both ends of the shell, the turbine blades following the rotation of the rotor located inside the shell, one end of a short-circuit rod being threadedly mounted on the end of the rotor, the other end of the short-circuit rod being connected to the inside of a container through a sliding shaft and a sealing ring, utilizing the climbing rod effect of a non-Newtonian fluid, as the short-circuit rod accelerates along with the rotor, the non-Newtonian fluid lifts the extension portion from the surface of the container along the short-circuit rod, disperses and guides the heat to the inside of the mounting base, accelerates the heat dissipation inside the shell, avoids a large amount of heat energy from being accumulated at the flywheel and not dissipating, and plays the effect of timely guiding and dissipating the heat energy.

Description

Technical Field

[0001] The present invention relates to the technical field of flywheel motors, and in particular to a magnetic levitation energy storage flywheel motor. Background Art

[0002] A magnetic levitation energy storage flywheel refers to an energy storage flywheel supported by magnetic levitation bearings. Traditional mechanical bearings have relatively large friction losses. The flywheel energy storage system using mechanical bearings will suffer a large energy loss during the energy storage process. By using magnetic levitation bearings to support the flywheel, the bearings do not directly contact each other, so the bearings operate stably, with basically no wear during operation. The bearings have a long service life, the flywheel speed can be greatly increased, and the energy storage density is therefore also improved.

[0003] Existing magnetic levitation energy storage flywheel motors do not have explosion-proof functions. When the flywheel rotates at high speed and breaks, it cannot provide double explosion-proof protection for surrounding personnel and equipment, cannot intercept the flying turbine blades in advance, and cannot effectively and quickly guide and evacuate the heat energy inside the shell. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a magnetic levitation energy storage flywheel motor, comprising a shell, an electronic control device is provided on the outside of the shell, the electronic control device is used to operate electricity, mounting bases are fixedly provided at both ends of the shell, a plurality of heat dissipation holes are opened on the surface of the mounting base near the arc side, a plurality of mounting holes are opened on the surface of the mounting base near the straight side, a convex shell is provided at the middle position of the top of the mounting base, a rotor is installed in the middle of the inner side of the shell, a shorting rod is threadedly connected to the middle of the upper and lower ends of the rotor, explosion-proof components are installed at both ends of the rotor through the shorting rod, two groups of wall rings are fixedly provided on the inner wall surface of the shell, a buffer mechanism is installed on the inner side of the shell and between the wall ring and the convex shell, and a plurality of heat dissipation rings are provided on the inner wall surface where the heat dissipation holes and the mounting holes coincide with the mounting base;

[0005] The explosion-proof assembly includes a container, an extension portion is connected to the middle of the top of the container, a sliding shaft is installed on the top of the extension portion, and the inside of the container contains non-Newtonian fluid, and a sealing ring is installed on the inside of the sliding shaft;

[0006] The buffer mechanism includes a limiting ring, a composite ring is connected to the side of the limiting ring close to the wall ring, a plurality of connecting pipes are connected in a circular array between the limiting ring and the composite ring, and ceramic slurry is contained in the buffer mechanism.

[0007] Preferably, the convex shell and the mounting base are connected as a whole, and one-way cooling holes are opened at the straight corners of the mounting base to assist in cooling the shell and ensure the vacuum environment of the shell. The outer surface of the convex shell is arranged in a stepped shape.

[0008] Preferably, high-temperature superconducting magnetic bearings are symmetrically installed at the upper and lower ends of the rotor, a flywheel is installed on the outer surface of the rotor and between the two groups of high-temperature superconducting magnetic bearings, a permanent magnet is installed on the outer surface of the explosion-proof component, and turbine blades are installed at the upper and lower ends of the rotor through pins, and the turbine blades are installed between the high-temperature superconducting magnetic bearings and the buffer mechanism.

[0009] Preferably, the permanent magnet is mounted on the inner side of the mounting base through an outer convex shell, the middle part of the container corresponding to the permanent magnet is mounted on the inner side of the mounting base, and the limiting ring is mounted on the upper and lower ends of the inner side of the shell through the limiting cooperation of the permanent magnet and the wall ring.

[0010] Preferably, the end of the short-circuit rod away from the rotor is mounted on the extension part through the cooperation of a sliding shaft and a sealing ring, the outer surface of the sliding shaft is connected to the extension part, and the inner side wall of the sliding shaft is connected to the short-circuit rod through a sealing ring, and the short-circuit rod is rotatably mounted on the extension part through the sliding shaft.

[0011] Preferably, the bottom of the container is embedded in the inner side of the permanent magnet, the non-Newtonian fluid is arranged on the inner side of the container, and the side of the extension away from the sliding shaft is connected to the port side of the container.

[0012] Preferably, the interiors of the limiting ring, composite ring and connecting tube are interconnected, the inner diameter of the limiting ring is larger than the outer diameter of the container, and the bottom of the limiting ring is correspondingly attached to the surface of the permanent magnet, and the surface of the composite ring is tightly attached to the wall ring inside the shell.

[0013] Preferably, the composite ring is connected to the limiting ring through a connecting pipe to form a whole, so that the overall structural tightness of the buffer mechanism is enhanced, and when the flywheel rotates at high speed and breaks, it is convenient to quickly capture and intercept the turbine blades.

[0014] Preferably, the turbine blades are arranged corresponding to the inner side of the limiting ring through the rotor, and the flywheel is suspended and installed in the middle of the shell through high-temperature superconducting magnetic bearings at both ends of the rotor and permanent magnets.

[0015] The present invention provides a magnetic levitation energy storage flywheel motor. It has the following beneficial effects:

[0016] 1. This magnetic levitation energy storage flywheel motor rotates inside the shell by following the rotor with the turbine blades. One end of the short-circuit rod is threadedly installed on the end of the rotor, and the other end of the short-circuit rod is connected to the inside of the container through a sliding shaft and a sealing ring. The non-Newtonian fluid climbs up the rod as the short-circuit rod accelerates along with the rotor, causing the non-Newtonian fluid to lift the extension part from the surface of the container along the short-circuit rod, dispersing and guiding the heat to the inside of the mounting base, accelerating the heat dissipation inside the shell, and preventing a large amount of heat energy from accumulating at the flywheel, thereby achieving the effect of timely guiding and dissipating heat energy.

[0017] 2. The magnetic levitation energy storage flywheel motor has a plurality of heat dissipation holes on the surface of the mounting base near the arc edge, and a plurality of heat dissipation rings are provided on the inner wall surface where the heat dissipation holes and the mounting holes coincide with the mounting base, thereby expanding the heat conduction contact area between the inner side of the shell and the outside air, ensuring a relative vacuum state inside the shell while dissipating part of the heat in one direction through the one-way cooling holes to assist in cooling; the middle part of the container corresponding to the permanent magnet is embedded and installed on the inner side of the mounting base, so that the middle part of the container corresponds to the middle part of the rotor and the flywheel, and the non-Newtonian fluid can be used to harden rapidly when encountering a high-speed collision, and the higher the impact intensity, the higher the hardness, to provide explosion-proof and impact-resistant protection when the flywheel ruptures during high-speed rotation, thereby protecting surrounding personnel and equipment.

[0018] 3. The magnetic levitation energy storage flywheel motor is installed between the explosion-proof component and the turbine blade through a buffer mechanism. When the flywheel breaks during high-speed rotation, it can play a certain buffering and blocking role. Combined with the ceramic slurry, it also has the characteristics of non-Newtonian fluids encountering higher impact strength, and cooperates with the explosion-proof component to play an auxiliary explosion-proof role. And through the composite ring close to the turbine blade, it is convenient to capture and intercept the turbine blade at close range, preventing the turbine blade from splashing and endangering surrounding personnel and equipment.

[0019] 4. The magnetic levitation energy storage flywheel motor rotates inside the shell with the turbine blades following the rotor, transferring the heat inside the shell to the mounting base. The buffer mechanism can block part of the heat energy. The good heat resistance of the ceramic slurry can block the diffused heat energy on the outside of the limit ring and the composite ring, preventing the heat energy from adhering to the components and interfering with the dispersion of the heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the external structure of a magnetic levitation energy storage flywheel motor of the present invention;

[0021] Figure 2 Schematic diagram of the internal structure of the housing of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the mounting base and the outer convex shell of the present invention;

[0023] Figure 4 This is a schematic diagram of the partial assembly structure of the explosion-proof component and the rotor of the present invention;

[0024] Figure 5 Schematic diagram of the structure of the explosion-proof assembly of the present invention;

[0025] Figure 6 Schematic diagram of the structure of the buffer mechanism of the present invention;

[0026] Figure 7 Schematic diagram of the structure of the limiting ring and the composite ring of the present invention;

[0027] Figure 8 It is a schematic structural diagram of the high-temperature superconducting magnetic levitation bearing and turbine blade of the present invention.

[0028] In the figure: 1. Shell; 2. Mounting base; 3. Heat dissipation hole; 4. Mounting hole; 5. Outer convex shell; 6. Rotor; 7. Short-circuit rod; 8. Explosion-proof component; 81. Container; 82. Extension part; 83. Sliding shaft; 84. Non-Newtonian fluid; 85. Sealing ring; 9. Buffer mechanism; 91. Limiting ring; 92. Composite ring; 93. Connecting pipe; 94. Ceramic slurry; 10. Permanent magnet; 11. High-temperature superconducting magnetic bearing; 12. Flywheel; 13. Turbine blade; 14. Wall ring; 15. Heat dissipation ring. DETAILED DESCRIPTION

[0029] Example 1

[0030] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 8As shown, the present invention provides a technical solution: a magnetic levitation energy storage flywheel motor, comprising a shell 1, an electronic control device is arranged on the outside of the shell 1, the electronic control device is used to operate electricity, a mounting base 2 is fixedly provided at both ends of the shell 1, a plurality of heat dissipation holes 3 are opened on the surface of the mounting base 2 near the arc side, a plurality of mounting holes 4 are opened on the surface of the mounting base 2 near the straight side, a convex shell 5 is provided at the middle position of the top of the mounting base 2, a rotor 6 is installed in the middle of the inner side of the shell 1, a short-circuit rod 7 is threadedly connected to the middle of the upper and lower ends of the rotor 6, and explosion-proof components 8 are installed at both ends of the rotor 6 through the short-circuit rod 7, two groups of wall rings 14 are fixedly provided on the inner wall surface of the shell 1, a buffer mechanism 9 is installed on the inner side of the shell 1 and between the wall ring 14 and the convex shell 5, a plurality of heat dissipation rings 15 are provided on the inner wall surface where the heat dissipation holes 3 and the mounting holes 4 coincide with the mounting base 2; the convex shell 5 is connected to the mounting base 2 as a whole, and the straight edge corners of the mounting base 2 A one-way cooling hole is opened at the position, and the outer surface of the convex shell 5 is arranged in a stepped shape; high-temperature superconducting magnetic bearings 11 are symmetrically installed at the upper and lower ends of the rotor 6, and a flywheel 12 is installed on the outer surface of the rotor 6 and between the two sets of high-temperature superconducting magnetic bearings 11. A permanent magnet 10 is installed on the outer surface of the explosion-proof component 8. Turbine blades 13 are installed at the upper and lower ends of the rotor 6 through pins. The turbine blades 13 are installed between the high-temperature superconducting magnetic bearings 11 and the buffer mechanism 9; the permanent magnet 10 is embedded and installed on the inner side of the mounting base 2 through the convex shell 5, and the container 81 is embedded and installed on the inner side of the mounting base 2 corresponding to the middle part of the permanent magnet 10, and the limit ring 91 is installed at the upper and lower ends of the inner side of the shell 1 through the limit cooperation of the permanent magnet 10 and the wall ring 14; the turbine blades 13 are arranged corresponding to the inner side of the limit ring 91 through the rotor 6, and the flywheel 12 is suspended and installed in the middle of the shell 1 through the high-temperature superconducting magnetic bearings 11 at both ends of the rotor 6 in combination with the permanent magnet 10.

[0031] During use, the flywheel motor as a whole is positioned and installed through the mounting holes 4 opened on the surface of the mounting base 2. Since the flywheel 12 is suspended and installed in the middle of the shell 1 through the high-temperature superconducting magnetic bearings 11 at both ends of the rotor 6 and the permanent magnets 10, the power is operated by the external electronic control device to control the movement of the flywheel 12. When the flywheel motor as a whole is in the charging mode, the rotor 6 drives the flywheel 12 to absorb energy from the outside, so that the speed of the flywheel 12 increases and the energy is stored in the form of kinetic energy, thereby completing the magnetic suspension energy storage function of the flywheel motor.

[0032] Example 2

[0033] like Figure 4 and Figure 5As shown, the explosion-proof component 8 includes a container 81, an extension portion 82 is connected to the middle of the top of the container 81, a sliding shaft 83 is installed on the top of the extension portion 82, and a non-Newtonian fluid 84 is contained on the inner side of the container 81, and a sealing ring 85 is installed on the inner side of the sliding shaft 83; the end of the short-circuit rod 7 away from the rotor 6 is installed in a sleeve with the extension portion 82 through the sliding shaft 83 and the sealing ring 85, the outer surface of the sliding shaft 83 is connected to the extension portion 82, and the inner side wall of the sliding shaft 83 is connected to the short-circuit rod 7 through the sealing ring 85, and the short-circuit rod 7 is rotatably installed with the extension portion 82 through the sliding shaft 83; the bottom of the container 81 is embedded and installed on the inner side of the permanent magnet 10, the non-Newtonian fluid 84 is arranged on the inner side of the container 81, and the side of the extension portion 82 away from the sliding shaft 83 is connected to the port side of the container 81.

[0034] During use, the turbine blades 13 rotate along with the rotor 6 located inside the housing 1, and one end of the short-circuit rod 7 is threadedly mounted on the end of the rotor 6. The other end of the short-circuit rod 7 is connected to the inside of the container 81 through the sliding shaft 83 and the sealing ring 85. The climbing effect of the non-Newtonian fluid 84 is utilized. As the short-circuit rod 7 rotates along with the rotor 6, the non-Newtonian fluid 84 lifts the extension portion 82 from the surface of the container 81 along the short-circuit rod 7, dissipating and guiding the heat to the inside of the mounting base 2, accelerating the heat dissipation inside the housing 1, and preventing a large amount of heat energy from being collected and not dissipated at the flywheel 12, thereby achieving the effect of timely guiding and dissipating heat energy.

[0035] A plurality of heat dissipation holes 3 are provided on the surface of the mounting base 2 near the arc edge, and a plurality of heat dissipation rings 15 are provided on the inner wall surface where the heat dissipation holes 3 and the mounting holes 4 coincide with the mounting base 2. This expands the contact area between the heat inside the housing 1 and the outside air, ensuring a relative vacuum state inside the housing 1 while dissipating part of the heat in one direction through the one-way cooling holes to assist in cooling.

[0036] The container 81 is mounted on the inner side of the mounting base 2 by being embedded in the middle of the permanent magnet 10 so that the middle of the container 81 corresponds to the middle of the rotor 6 and the flywheel 12. The non-Newtonian fluid 84 can be used to quickly harden when encountering a high-speed collision, and the higher the impact intensity, the higher the hardness. This can provide explosion-proof and impact-resistant protection when the flywheel 12 rotates at high speed and breaks, thereby protecting surrounding personnel and equipment.

[0037] Example 3

[0038] like Figure 2 、 Figure 6 and Figure 7As shown, the buffer mechanism 9 includes a limit ring 91, and a composite ring 92 is connected to the side of the limit ring 91 close to the wall ring 14. A number of connecting tubes 93 are connected in a circular array between the limit ring 91 and the composite ring 92. The buffer mechanism 9 contains ceramic slurry 94; the interiors of the limit ring 91, the composite ring 92 and the connecting tube 93 are interconnected, the inner diameter of the limit ring 91 is larger than the outer diameter of the container 81, and the bottom of the limit ring 91 corresponds to the surface of the permanent magnet 10, and the surface of the composite ring 92 is tightly attached to the wall ring 14 on the inner side of the shell 1; the composite ring 92 is connected to the limit ring 91 through the connecting tube 93 as a whole.

[0039] When in use, the buffer mechanism 9 is installed between the explosion-proof component 8 and the turbine blade 13. When the flywheel 12 rotates at high speed and breaks, it can play a certain buffering and blocking role. Combined with the ceramic slurry 94, it also has the characteristics of non-Newtonian fluid encountering higher impact strength, and cooperates with the explosion-proof component 8 to play an auxiliary explosion-proof role; and through the composite ring 92 close to the turbine blade 13, it is convenient to capture and intercept the turbine blade 13 at close range, preventing the turbine blade 13 from splashing and endangering surrounding personnel and equipment.

[0040] The turbine blades 13 follow the rotation of the rotor 6 inside the shell 1, and the heat inside the shell 1 is transferred to the mounting base 2. Part of the heat energy can be blocked by the buffer mechanism 9. The good heat resistance of the ceramic slurry 94 can block the diffused heat energy on the outside of the limit ring 91 and the composite ring 92, preventing the heat energy from adhering to the components and interfering with the dispersion of the heat energy.

[0041] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A magnetic levitation energy storage flywheel motor, comprising a housing (1), an electronic control device disposed outside the housing (1), the electronic control device being used to operate electric power, and characterized in that: Both ends of the shell (1) are fixed with mounting bases (2), a plurality of heat dissipation holes (3) are provided on the surface of the mounting base (2) near the arc side, a plurality of mounting holes (4) are provided on the surface of the mounting base (2) near the straight side, a convex shell (5) is provided at the middle position of the top of the mounting base (2), a rotor (6) is installed in the middle of the inner side of the shell (1), a short-circuit rod (7) is threadedly connected to the middle of the upper and lower ends of the rotor (6), and explosion-proof components (8) are installed at both ends of the rotor (6) through the short-circuit rod (7), two groups of wall rings (14) are fixedly provided on the inner wall surface of the shell (1), a buffer mechanism (9) is installed on the inner side of the shell (1) and between the wall ring (14) and the convex shell (5), and a plurality of heat dissipation rings (15) are provided on the inner wall surface of the heat dissipation holes (3) and the mounting holes (4) that coincide with the mounting base (2); The explosion-proof assembly (8) includes a container (81), an extension portion (82) is connected to the middle of the top of the container (81), a sliding shaft (83) is installed on the top of the extension portion (82), and a non-Newtonian fluid (84) is contained inside the container (81), and a sealing ring (85) is installed inside the sliding shaft (83); The buffer mechanism (9) comprises a limiting ring (91), a composite ring (92) is connected to the side of the limiting ring (91) close to the wall ring (14), a plurality of connecting pipes (93) are connected in a circular array between the limiting ring (91) and the composite ring (92), and ceramic slurry (94) is contained inside the buffer mechanism (9).

2. The magnetic levitation energy storage flywheel motor according to claim 1, characterized in that: The outer convex shell (5) and the mounting base (2) are connected as a whole, one-way cooling holes are provided at the straight edge corners of the mounting base (2), and the outer surface of the outer convex shell (5) is arranged in a stepped shape.

3. The magnetic levitation energy storage flywheel motor according to claim 2, characterized in that: High-temperature superconducting magnetic suspension bearings (11) are symmetrically mounted on the upper and lower ends of the rotor (6); a flywheel (12) is mounted on the outer surface of the rotor (6) and located between two groups of high-temperature superconducting magnetic suspension bearings (11); a permanent magnet (10) is mounted on the outer surface of the explosion-proof component (8); turbine blades (13) are mounted on the upper and lower ends of the rotor (6) via latches; the turbine blades (13) are mounted between the high-temperature superconducting magnetic suspension bearings (11) and the buffer mechanism (9).

4. The magnetic levitation energy storage flywheel motor according to claim 3, characterized in that: The permanent magnet (10) is mounted on the inner side of the mounting base (2) through the outer convex shell (5), the container (81) is mounted on the inner side of the mounting base (2) corresponding to the middle part of the permanent magnet (10), and the limiting ring (91) is mounted on the upper and lower ends of the inner side of the shell (1) through the limiting cooperation between the permanent magnet (10) and the wall ring (14).

5. The magnetic levitation energy storage flywheel motor according to claim 4, characterized in that: The end of the short-circuit rod (7) away from the rotor (6) is sleeved and installed with the extension part (82) through the sliding shaft (83) and the sealing ring (85); the outer surface of the sliding shaft (83) is connected to the extension part (82), and the inner side wall of the sliding shaft (83) is connected to the short-circuit rod (7) through the sealing ring (85); the short-circuit rod (7) is rotatably installed with the extension part (82) through the sliding shaft (83).

6. The magnetic levitation energy storage flywheel motor according to claim 5, characterized in that: The bottom of the container (81) is embedded in the inner side of the permanent magnet (10), the non-Newtonian fluid (84) is arranged on the inner side of the container (81), and the side of the extension part (82) away from the sliding shaft (83) is connected to the port side of the container (81).

7. The magnetic levitation energy storage flywheel motor according to claim 6, characterized in that: The interiors of the limiting ring (91), the composite ring (92) and the connecting pipe (93) are interconnected. The inner diameter of the limiting ring (91) is larger than the outer diameter of the container (81). The bottom of the limiting ring (91) is correspondingly attached to the surface of the permanent magnet (10), and the surface of the composite ring (92) is closely attached to the wall ring (14) on the inner side of the shell (1).

8. The magnetic levitation energy storage flywheel motor according to claim 7, characterized in that: The composite ring (92) is connected to the limiting ring (91) via a connecting pipe (93) to form a whole.

9. The magnetic levitation energy storage flywheel motor according to claim 8, characterized in that: The turbine blades (13) are arranged correspondingly to the inner side of the limiting ring (91) through the rotor (6), and the flywheel (12) is suspended and installed in the middle of the housing (1) through high-temperature superconducting magnetic suspension bearings (11) at both ends of the rotor (6) in conjunction with permanent magnets (10).

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