High-speed permanent magnet motor material structure integrated composite material sheath

Abstract

The utility model relates to the technical field of motor engineering, and discloses a high-speed permanent magnet motor material structure integrated composite material sheath, which comprises a base, a flywheel and a first sealing gasket, a vacuum sealing tank is fixedly arranged at the top of the base, the flywheel is movably arranged in the vacuum sealing tank, a wheel body is fixedly arranged at the top of the flywheel, and the first sealing gasket is arranged in the wheel body. A motor rotor is rotatably mounted in the wheel body, a first sealing gasket is fixedly mounted at the bottom of the flywheel, an axial magnetic suspension bearing is fixedly mounted at the top of the flywheel, a stator winding is rotatably mounted at the top of the axial magnetic suspension bearing, and a second sealing gasket is fixedly mounted at the top of the flywheel. By means of the axial magnetic suspension bearing, the flywheel can be suspended in a magnetic field by means of magnetic force, mechanical contact is avoided, friction resistance and abrasion are remarkably reduced, the flywheel can be kept stable during high-speed rotation, reliability and safety of a system are improved, and the flywheel has long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of motor engineering, in particular to a composite material sheath with an integrated material structure for a high-speed permanent magnet motor. Background Art

[0002] With the widespread application of high-speed rotating machinery in various fields, such as aerospace, energy storage and electric vehicles, the rotor system needs to be optimized. The magnetic levitation energy storage flywheel structure is a highly efficient energy storage device. Its unique structure and high-speed rotation characteristics put forward higher requirements on the sheath material. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a composite material sheath with an integrated material structure for a high-speed permanent magnet motor.

[0004] The utility model is implemented by the following technical scheme: a composite material sheath with an integrated material structure of a high-speed permanent magnet motor, comprising a base, a flywheel and a first sealing gasket, a vacuum sealing tank is fixedly installed on the top of the base, a flywheel is movably installed inside the vacuum sealing tank, a wheel body is fixedly installed on the top of the flywheel, a motor rotor is rotatably installed inside the wheel body, a first sealing gasket is fixedly installed on the bottom of the flywheel, an axial magnetic suspension bearing is fixedly installed on the top of the flywheel, a stator winding is rotatably installed on the top of the axial magnetic suspension bearing, and a second sealing gasket is fixedly installed on the top of the flywheel.

[0005] Through the axial magnetic suspension bearing, the flywheel can be suspended in the magnetic field by using magnetic force, thus avoiding mechanical contact, thereby significantly reducing friction resistance and wear, enabling the flywheel to remain stable during high-speed rotation, and improving the reliability and safety of the system. The first radial magnetic suspension bearing and the second radial magnetic suspension bearing can bear the weight of the flywheel, allowing it to suspend in the magnetic field without contact, reducing energy loss, and improving the efficiency and reliability of the system.

[0006] When the flywheel rotates, the axial magnetic bearing, the first radial magnetic bearing and the second radial magnetic bearing need to withstand huge torque and centrifugal force. Precise magnetic field control can be used to achieve efficient energy transfer, allowing the flywheel to rotate at high speed and store a large amount of mechanical energy. Since there is no contact and wear, it has a long service life and high reliability. At the same time, since no lubrication and maintenance are required, the complexity and maintenance cost of the system are reduced.

[0007] Preferably, a vacuum sealing cover is fixedly mounted on the top of the vacuum sealing tank, and a support plate related to the base is fixedly mounted on the surface of the vacuum sealing tank. The vacuum sealing tank and the vacuum sealing cover on the top of the base can reduce air resistance and heat loss, improve the efficiency of energy storage and release, and the support plate can support the vacuum sealing tank and the vacuum sealing cover.

[0008] Preferably, a first connection seat is fixedly installed at the bottom of the flywheel, and a second connection seat is fixedly installed at the top of the motor rotor. The flywheel can be installed in the first radial magnetic bearing through the first connection seat and the second connection seat.

[0009] Preferably, the first connection seat is matched with the first radial magnetic bearing, and the second connection seat is matched with the second radial magnetic bearing. The first radial magnetic bearing and the second radial magnetic bearing can bear the weight of the flywheel.

[0010] Preferably, a flywheel is movably mounted inside the vacuum sealed tank via a first radial magnetic bearing and a second radial magnetic bearing. The first radial magnetic bearing and the second radial magnetic bearing can bear the weight of the flywheel, so that the flywheel can be suspended in the magnetic field without contact, thereby reducing energy loss and improving the efficiency and reliability of the system.

[0011] Preferably, a first sealing gasket related to the vacuum sealing tank is fixedly mounted on the surface of the first radial magnetic bearing, and a second sealing gasket related to the vacuum sealing tank is fixedly mounted on the surface of the second radial magnetic bearing. The first sealing gasket and the second sealing gasket inside the vacuum sealing tank can prevent air from entering the interior of the vacuum sealing tank.

[0012] Preferably, a base is fixedly mounted on the top of the axial magnetic bearing, and a stator winding is movably mounted on the surface of the base. The reciprocal bidirectional motor electronics assembled by the base and the stator winding allow the motor to perform energy conversion in two directions. The motor can not only convert electrical energy into mechanical energy to accelerate the flywheel, but also convert the mechanical energy of the flywheel back to electrical energy when needed, realizing energy recovery and reuse, which can improve the efficiency and energy utilization of the system.

[0013] Through the above technical solutions, composite materials are the only way to improve the energy and power density of flywheels. The laser in-situ curing technology of prestressed composite material winding can simultaneously improve the power density and energy density of flywheel energy storage devices. It is the core technology of flywheel manufacturing. The surface linear speed of the flywheel motor rotor reaches 250m / s, and the surface linear speed of the flywheel body reaches 750m / s. Compared with ordinary flywheel products, the indicators are far ahead, which greatly improves the competitiveness of flywheel products. A single laser heating winding equipment can simultaneously wind the motor rotor sleeve and the flywheel body, with fewer processes, which is suitable for mass production. With independent production capabilities, the production cost of a single flywheel is greatly reduced.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model is provided with an axial magnetic suspension bearing, a first radial magnetic suspension bearing, a second radial magnetic suspension bearing and the flywheel, and the axial magnetic suspension bearing can utilize magnetic force to suspend the flywheel in the magnetic field, thereby avoiding mechanical contact, thereby significantly reducing friction resistance and wear, and can enable the flywheel to remain stable during high-speed rotation, thereby improving the reliability and safety of the system; the first radial magnetic suspension bearing and the second radial magnetic suspension bearing can bear the weight of the flywheel, so that it can be suspended in the magnetic field without contact, thereby reducing energy loss and improving the efficiency and reliability of the system.

[0016] The utility model is provided with an axial magnetic suspension bearing, a first radial magnetic suspension bearing, a second radial magnetic suspension bearing and a flywheel that cooperate with each other. When the flywheel rotates, the axial magnetic suspension bearing, the first radial magnetic suspension bearing and the second radial magnetic suspension bearing need to withstand huge torque and centrifugal force. Precise magnetic field control can be used to achieve efficient energy transfer, so that the flywheel can rotate at high speed and store a large amount of mechanical energy. Since there is no contact and wear, the flywheel has a long service life and high reliability. At the same time, since no lubrication and maintenance are required, the complexity and maintenance cost of the system are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the first sealing gasket of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall internal structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the flywheel structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the wheel structure of the utility model.

[0022] Description of main symbols:

[0023] 1. Base; 101. Vacuum sealing tank; 102. Vacuum sealing cover; 103. Support plate; 2. Flywheel; 201. First connecting seat; 202. Wheel body; 203. Motor rotor; 204. Second connecting seat; 3. First sealing gasket; 301. First radial magnetic bearing; 302. Axial magnetic bearing; 303. Machine base; 304. Stator winding; 305. Second radial magnetic bearing; 306. Second sealing gasket. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. Example

[0025] Please combine Figure 1-5 A high-speed permanent magnet motor material structure integrated composite material sheath of the present embodiment includes a base 1, a flywheel 2 and a first sealing gasket 3. A vacuum sealing tank 101 is fixedly installed on the top of the base 1, and a flywheel 2 is movably installed inside the vacuum sealing tank 101. A wheel body 202 is fixedly installed on the top of the flywheel 2, and a motor rotor 203 is rotatably installed inside the wheel body 202. A first sealing gasket 3 is fixedly installed on the bottom of the flywheel 2, an axial magnetic suspension bearing 302 is fixedly installed on the top of the flywheel 2, a stator winding 304 is rotatably installed on the top of the axial magnetic suspension bearing 302, and a second sealing gasket 306 is fixedly installed on the top of the flywheel 2.

[0026] Through the axial magnetic suspension bearing 302, the flywheel 2 can be suspended in the magnetic field by using magnetic force, thus avoiding mechanical contact, thereby significantly reducing friction resistance and wear, and enabling the flywheel 2 to remain stable during high-speed rotation, thereby improving the reliability and safety of the system. The first radial magnetic suspension bearing 301 and the second radial magnetic suspension bearing 305 can bear the weight of the flywheel 2, allowing it to be suspended in the magnetic field without contact, thereby reducing energy loss and improving the efficiency and reliability of the system.

[0027] When the flywheel 2 rotates, the axial magnetic bearing 302 and the first radial magnetic bearing 301 and the second radial magnetic bearing 305 need to withstand huge torque and centrifugal force. Through precise magnetic field control, efficient energy transfer can be achieved, so that the flywheel 2 can rotate at high speed and store a large amount of mechanical energy. Since there is no contact and wear, it has a long service life and high reliability. At the same time, since no lubrication and maintenance are required, the complexity and maintenance cost of the system are reduced.

[0028] A vacuum sealing cover 102 is fixedly installed on the top of the vacuum sealing tank 101, and a support plate 103 related to the base 1 is fixedly installed on the surface of the vacuum sealing tank 101. The vacuum sealing tank 101 and the vacuum sealing cover 102 on the top of the base 1 can reduce air resistance and heat loss, improve the efficiency of energy storage and release, and the support plate 103 can support the vacuum sealing tank 101 and the vacuum sealing cover 102.

[0029] The bottom of the flywheel 2 is fixedly mounted with a first connection seat 201, and the top of the motor rotor 203 is fixedly mounted with a second connection seat 204. The flywheel 2 can be mounted in the first radial magnetic bearing 301 through the first connection seat 201 and the second connection seat 204.

[0030] The first connection seat 201 is matched with the first radial magnetic bearing 301, and the second connection seat 204 is matched with the second radial magnetic bearing 305. The weight of the flywheel 2 can be borne by the first radial magnetic bearing 301 and the second radial magnetic bearing 305.

[0031] The flywheel 2 is movably mounted inside the vacuum sealed tank 101 through the first radial magnetic bearing 301 and the second radial magnetic bearing 305. The first radial magnetic bearing 301 and the second radial magnetic bearing 305 can bear the weight of the flywheel 2, so that it can be suspended in the magnetic field without contact, reducing energy loss and improving the efficiency and reliability of the system.

[0032] A first sealing gasket 3 related to the vacuum sealed tank 101 is fixedly mounted on the surface of the first radial magnetic bearing 301, and a second sealing gasket 306 related to the vacuum sealed tank 101 is fixedly mounted on the surface of the second radial magnetic bearing 305. The first sealing gasket 3 and the second sealing gasket 306 inside the vacuum sealed tank 101 can prevent air from entering the interior of the vacuum sealed tank 101.

[0033] A base 303 is fixedly mounted on the top of the axial magnetic bearing 302, and a stator winding 304 is movably mounted on the surface of the base 303. The reciprocal bidirectional motor electronics assembled by the base 303 and the stator winding 304 allow the motor to perform energy conversion in two directions. The motor can not only convert electrical energy into mechanical energy to accelerate the flywheel 2, but also convert the mechanical energy of the flywheel 2 back to electrical energy when needed, realizing energy recovery and reuse, which can improve the efficiency and energy utilization of the system.

[0034] The implementation principle of a high-speed permanent magnet motor material structure integrated composite material sheath in the embodiment of the present application is: the flywheel 2 is installed inside the first radial magnetic bearing 301 through the first connecting seat 201 and the second connecting seat 204. During the charging process, the motor drives the flywheel 2 to rotate at a high speed inside the first radial magnetic bearing 301 and the second radial magnetic bearing 305 to convert electrical energy into mechanical energy. When discharge is required, the flywheel 2 slows down and releases the stored mechanical energy, which is converted into electrical energy output by the motor rotor 203 inside the wheel body 202. Through the axial magnetic suspension bearing 302, the flywheel 2 can be suspended in the magnetic field by using magnetic force, thus avoiding mechanical contact, thereby significantly reducing friction resistance and wear, and enabling the flywheel 2 to remain stable during high-speed rotation, thereby improving the reliability and safety of the system. The first radial magnetic suspension bearing 301 and the second radial magnetic suspension bearing 305 can bear the weight of the flywheel 2, so that it can be suspended in the magnetic field without contact, thereby reducing energy loss and improving the efficiency and reliability of the system. When the flywheel 2 rotates, the axial magnetic suspension bearing 302 and the first radial magnetic suspension bearing 301 The second radial magnetic bearing 305 needs to withstand huge torque and centrifugal force. It can achieve efficient energy transmission through precise magnetic field control, so that the flywheel 2 can rotate at high speed and store a large amount of mechanical energy. Since there is no contact and wear, it has a long service life and high reliability. At the same time, since no lubrication and maintenance are required, the complexity and maintenance cost of the system are reduced. The vacuum sealed tank 101 and the vacuum sealed cover 102 on the top of the base 1 can reduce air resistance and heat loss, and improve the efficiency of energy storage and release. The vacuum sealed tank 101 and the vacuum sealed cover 102 can be supported by the support plate 103. The first sealing gasket 3 and the second sealing gasket 306 inside the vacuum sealed tank 101 can prevent air from entering the inside of the vacuum sealed tank 101. The reciprocal bidirectional motor electronics assembled by the base 303 and the stator winding 304 allow the motor to convert energy in two directions. The motor can not only convert electrical energy into mechanical energy to accelerate the flywheel 2, but also convert the mechanical energy of the flywheel 2 back into electrical energy when needed, so as to achieve energy recovery and reuse, thereby improving the efficiency and energy utilization of the system.

[0035] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A composite material sheath with integrated material structure for high-speed permanent magnet motor, characterized in that: The invention comprises a base (1), a flywheel (2) and a first sealing gasket (3); a vacuum sealing tank (101) is fixedly mounted on the top of the base (1); a flywheel (2) is movably mounted inside the vacuum sealing tank (101); a wheel body (202) is fixedly mounted on the top of the flywheel (2); a motor rotor (203) is rotatably mounted inside the wheel body (202); a first sealing gasket (3) is fixedly mounted on the bottom of the flywheel (2); an axial magnetic suspension bearing (302) is fixedly mounted on the top of the flywheel (2); a stator winding (304) is rotatably mounted on the top of the axial magnetic suspension bearing (302); and a second sealing gasket (306) is fixedly mounted on the top of the flywheel (2).

2. A high-speed permanent magnet motor material structure integrated composite material sheath as claimed in claim 1, characterized in that: A vacuum sealing cover (102) is fixedly mounted on the top of the vacuum sealing tank (101), and a support plate (103) related to the base (1) is fixedly mounted on the surface of the vacuum sealing tank (101).

3. A high-speed permanent magnet motor material structure integrated composite material sheath as claimed in claim 1, characterized in that: A first connection seat (201) is fixedly mounted on the bottom of the flywheel (2), and a second connection seat (204) is fixedly mounted on the top of the motor rotor (203).

4. A high-speed permanent magnet motor material structure integrated composite material sheath as claimed in claim 3, characterized in that: The first connection seat (201) matches the first radial magnetic suspension bearing (301), and the second connection seat (204) matches the second radial magnetic suspension bearing (305).

5. A high-speed permanent magnet motor material structure integrated composite sheath as claimed in claim 4, characterized in that: A flywheel (2) is movably mounted inside the vacuum sealed tank (101) via a first radial magnetic suspension bearing (301) and a second radial magnetic suspension bearing (305).

6. A high-speed permanent magnet motor material structure integrated composite material sheath as claimed in claim 5, characterized in that: A first sealing gasket (3) related to the vacuum sealing tank (101) is fixedly mounted on the surface of the first radial magnetic suspension bearing (301), and a second sealing gasket (306) related to the vacuum sealing tank (101) is fixedly mounted on the surface of the second radial magnetic suspension bearing (305).

7. A high-speed permanent magnet motor material structure integrated composite material sheath as claimed in claim 1, characterized in that: A base (303) is fixedly mounted on the top of the axial magnetic suspension bearing (302), and a stator winding (304) is movably mounted on the surface of the base (303).

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