CN203481988U - Magnetic suspension flywheel motor - Google Patents
Magnetic suspension flywheel motor Download PDFInfo
- Publication number
- CN203481988U CN203481988U CN201320529989.6U CN201320529989U CN203481988U CN 203481988 U CN203481988 U CN 203481988U CN 201320529989 U CN201320529989 U CN 201320529989U CN 203481988 U CN203481988 U CN 203481988U
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- magnetic
- magnetic suspension
- links
- flywheel
- stator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a magnetic suspension flywheel motor. A flywheel rotor assembly is of a disc structure and realizes supporting by use of at least one center bearing and at least one set of magnetic suspension bearings. An upper rotor magnetic steel sheet, a lower magnetic steel sheet, an upper stator PCB winding and a lower PCB winding are arranged between the center bearing and the magnetic suspension bearings. According to the utility model, a permanent magnetic motor, a flywheel and magnetic suspension bearings are combined together so that the whole magnetic suspension flywheel motor has the remarkable advantages of small size, light weight and fully optimized flywheel motor performance.
Description
Technical field
The utility model relates to machine field, relates in particular to a kind of magnetically levitated flywheel motor.
Background technology
Tradition permanent magnetism fly-wheel motor, is comprised of magneto and flywheel body two parts, and its structure is heavy.Magneto drives the rotation of flywheel body to produce momentum J Ω, can be used for energy storage, holds position or reaction control.Require the loss of permanent magnetism fly-wheel motor little, smooth rotation, volume be little, lightweight.
Yet, tradition permanent magnetism fly-wheel motor is heavy except structure, and its stator teeth notching, exists Cogging Torque, stator core produces iron loss and additional eddy resistance square when motor high speed rotating, and the moment of friction of bearing and useful life are all the problems of restriction fly-wheel motor performance.
Utility model content
For the above-mentioned defect of prior art, the utility model will provide a kind of magnetically levitated flywheel motor, to solve the problems such as traditional permanent magnetism fly-wheel loss of electric machine is large, the life-span is short.
Magnetically levitated flywheel motor of the present utility model, comprise flywheel rotor assembly and stator module, described flywheel rotor assembly is disc structure, wherein, the centre of gyration of described flywheel rotor assembly is sheathed at least one centre bearing, in the position near described flywheel rotor assembly edge, is provided with at least a set of magnetic suspension bearing; The upper and lower surface between described centre bearing and magnetic suspension bearing at described flywheel rotor assembly, be respectively equipped with upper rotor magnetic links and lower rotor magnetic links, described top, lower rotor magnetic links consist of respectively loop configuration, and magnetic links number of magnetic poles is separately 2P, wherein P is magnetic pole logarithm; Described stator module comprises and is positioned at the upper stator assembly on described upper rotor magnetic links top and the bottom stator module that is positioned at described lower rotor magnetic links bottom; The lower surface of described upper stator assembly is provided with upper stator yoke, and the lower surface of described upper stator yoke is provided with upper stator PCB winding; The upper surface of described bottom stator module is provided with bottom stator yoke, and the upper surface of described bottom stator yoke is provided with bottom stator PCB winding.
In the utility model, magnetic suspension bearing comprises the static magnetic links of bottom magnetic suspension of being located at the top magnetic suspension rotating magnetic steel sheet of described flywheel rotor assembly upper and lower surface and bottom magnetic suspension rotating magnetic steel sheet, being located at the static magnetic links of top magnetic suspension of described upper stator assembly lower surface and being located at described bottom stator module upper surface described in every suit; Between described top magnetic suspension rotating magnetic steel sheet and the static magnetic links of top magnetic suspension, be that identical polar is opposed, mutually produce the active force repelling each other; Between described bottom magnetic suspension rotating magnetic steel sheet and the static magnetic links of bottom magnetic suspension, be that identical polar is opposed, mutually produce the active force repelling each other.
In preferred version of the present utility model, described top, bottom magnetic suspension rotating magnetic steel sheet and top, the static magnetic links of bottom magnetic suspension all adopt the annular plastics magnetic links of 0.5～5mm, and its outer diameter D 2 should be less than 20mm with the difference of inner diameter D 1.
In preferred version of the present utility model, be provided with two cover magnetic suspension bearings, radially arrange between the two, and distance H between the two should be greater than 2mm, be to be greater than 4mm in the present embodiment.
In preferred version of the present utility model, the working clearance between described top magnetic suspension rotating magnetic steel sheet and the static magnetic links of top magnetic suspension and between described bottom magnetic suspension rotating magnetic steel sheet and the static magnetic links of bottom magnetic suspension is 0.15～5mm.
In preferred version of the present utility model, the upper/lower terminal of described centre bearing is provided with upper and lower ripple packing ring and lower ripple packing ring.
In preferred version of the present utility model, described top, bottom stator yoke are made by plastics soft magnetic material or soft magnetic ferrites.
In preferred version of the present utility model, the thickness of described top, lower rotor magnetic links is 0.5～5mm; Described stator PCB winding is whole apart from winding, and a uniform Z=2Pm winding, and motor basic parameter should meet: π D/2P≤40mm, wherein D is that average diameter, the Z of annular magnetic steel disc are that empty groove number, the m of motor is the number of phases of motor.
In preferred version of the present utility model, this motor is three-phase motor with permanent magnets, m=3 wherein, and Z=2Pm=6P, its U, V, W tri-phase windings form three-phase absolute coil windings or center line is connected to Y connected mode.
By technique scheme, can be found out, the utility model combines magneto, flywheel and magnetic suspension bearing, and whole magnetically levitated flywheel motor has little, the lightweight outstanding feature of volume.Wherein adopt thin slice magnet steel and thin slice soft magnetic material and structure, eliminate the eddy current loss of little Cogging Torque and stator core.Maglev employing has greatly reduced mechanical friction, makes the centre bearing can be in axial zero load, and moment of friction is very little and useful life is very long.The utility model magnetically levitated flywheel motor has been optimized traditional performance comprehensively.
Accompanying drawing explanation
Fig. 1 is the cross sectional view of magnetically levitated flywheel motor in preferred embodiment of the utility model;
Fig. 2 is the magnetic line of force schematic diagram that the structure of magnetic suspension bearing shown in Fig. 1 and the magnetic field of repelling each other produce;
Fig. 3 is the PCB stator winding schematic diagram of the motor of magnetically levitated flywheel shown in Fig. 1, and its three phase winding is uniformly distributed by 120 ° of electrical degrees along circumference.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, in the preferred enforcement shown in Fig. 1 to Fig. 3: the 1st, flywheel rotor assembly, the 2nd, upper rotor magnetic links, the 3rd, lower rotor magnetic links, the 4th, top magnetic suspension rotating magnetic steel sheet, the 41st, the static magnetic links of top magnetic suspension, the 5th, bottom magnetic suspension rotating magnetic steel sheet, the 51st, the static magnetic links of bottom magnetic suspension, the 6th, upper stator assembly, the 7th, bottom stator module, the 8th, upper stator PCB winding, the 81st, upper stator yoke, the 9th, bottom stator PCB winding, the 91st, bottom stator yoke, the 10th, centre bearing, the 101st, the packing ring of ripple up and down of centre bearing, the 11st, the housing of magnetically levitated flywheel motor.
As shown in the right side of Fig. 1, flywheel rotor assembly 1 is wherein in the form of annular discs, and its surface is installed on respectively upper rotor magnetic links 2 and lower rotor magnetic links 3, and top, lower rotor magnetic links are all arranged as loop configuration, and symmetrically, number of magnetic poles is 2P.
The inner side of upper stator assembly 6 is provided with upper stator yoke 81, is then provided with upper stator PCB winding 8, and keeps revolution opposed with the upper rotor magnetic links 2 of flywheel rotor assembly 1.The inner side of bottom stator module 7 is provided with bottom stator yoke 91, is then provided with bottom stator PCB winding 9, and keeps revolution opposed with the lower rotor magnetic links 3 of flywheel rotor assembly 1.
The centre of gyration of motor is centre bearing 10, and its effect is to realize radial support.Upper/lower terminal at centre bearing 10 is provided with upper and lower ripple packing ring and lower ripple packing ring 101.
In the position away from centre bearing 10, (in the position near flywheel rotor assembly 1 edge) is also provided with annular magnetic suspension bearing, and its effect is to realize axial support.That is to say, be local sectional view structure shown in Fig. 1, and the dotted line on its right side is center line, and its sectional view is symmetrical structure; Conceivable, the A of Fig. 1 should be a circular configuration centered by centre bearing 10 to view.
As the left side of Fig. 1 is depicted as magnetic suspension bearing, comprise be positioned at flywheel rotor assembly 1 upper surface top magnetic suspension rotating magnetic steel sheet 4, be positioned at the bottom magnetic suspension rotating magnetic steel sheet 5 of flywheel rotor assembly 1 lower surface, be positioned at stator module 6 inner sides the static magnetic links 41 of top magnetic suspension, be positioned at the static magnetic links 51 of bottom magnetic suspension of stator module 7 inner sides.Wherein, top magnetic suspension rotating magnetic steel sheet 4 be that identical polar is opposed with the static magnetic links 41 of top magnetic suspension, and for example N is extremely to the N utmost point, or S is extremely to the S utmost point, the active force that generation repels each other between the two; Equally, bottom magnetic suspension rotating magnetic steel sheet 55 is also that identical polar is opposed with the static magnetic links 51 of bottom magnetic suspension.
Top, bottom magnetic suspension rotating magnetic steel sheet and top, the static magnetic links of bottom magnetic suspension all adopt the annular plastics magnetic links of 0.5～5mm to make, and the difference of its external diameter and internal diameter should be less than 20mm, is to be less than 5mm in the present embodiment.In embodiment shown in Fig. 1, be provided with two cover magnetic suspension bearings, radially arrange between the two, and distance between the two should be greater than 2mm.During concrete enforcement, a set of magnetic suspension bearing also can be only set or three covers be set or overlap magnetic suspension bearing more.
Flywheel rotor assembly 1, radially being retrained by the centre bearing 10 of motor, is axially being supported by magnetic suspension bearing, and in agravic environment, flywheel rotor assembly 1 will be suspended in the geometric center of motor, and can freely rotate.In gravity environment, the axial location of flywheel rotor assembly 1 by the restoring force of magnetic suspension bearing, the restoring force of ripple packing ring 101, these three factors of gravity determine.When the restoring force of magnetic suspension bearing is during much larger than gravity, the axial location deviation of flywheel rotor assembly 1 can be ignored.
In the present embodiment, flywheel rotor assembly 1, stator module 6,7, and housing 11 to form together magnetically levitated flywheel motor whole, this magnetically levitated flywheel motor is two stators and double-rotor machine, takes full advantage of whole spaces of motor.Discoid flywheel rotor assembly 1 symmetrical configuration wherein, surfacing is smooth, and in motor cavity, in turning course, air drag is very little.
As shown in Figure 2, in the present embodiment, the working clearance δ between top magnetic suspension rotating magnetic steel sheet and the static magnetic links of top magnetic suspension and between described bottom magnetic suspension rotating magnetic steel sheet and the static magnetic links of bottom magnetic suspension is 0.15～5mm.
During concrete enforcement, top wherein, bottom stator yoke are made by plastics soft magnetic material or soft magnetic ferrites.The thickness of top, lower rotor magnetic links is 0.5～5mm.
As shown in Figure 3, stator PCB winding is whole apart from winding, and a uniform Z=2Pm winding, and motor basic parameter should meet: π D/2P≤40mm, wherein D is that average diameter, the Z of annular magnetic steel disc are that empty groove number, the m of motor is the number of phases of motor.Motor is as shown in Figure 3 three-phase motor with permanent magnets, m=3 wherein, and Z=2Pm=6P, its U, V, W tri-phase windings form three-phase absolute coil windings or center line is connected to Y connected mode.
The utility model combines magneto, flywheel and magnetic suspension bearing, and whole magnetically levitated flywheel motor has little, the lightweight outstanding feature of volume.Wherein adopt thin slice magnet steel and thin slice soft magnetic material and structure, eliminate the eddy current loss of little Cogging Torque and stator core.Maglev employing has greatly reduced mechanical friction, makes the centre bearing can be in axial zero load, and moment of friction is very little and useful life is very long.The utility model magnetically levitated flywheel motor has been optimized traditional performance comprehensively.
The utility model magnetically levitated flywheel can be used as the accumulated energy flywheel of energy-storage system, the device that can be used for holding position or space counteraction flyback control system.
Claims (9)
1. a magnetically levitated flywheel motor, comprises flywheel rotor assembly and stator module, and described flywheel rotor assembly is disc structure, it is characterized in that,
The centre of gyration of described flywheel rotor assembly is sheathed at least one centre bearing, in the position near described flywheel rotor assembly edge, is provided with at least a set of magnetic suspension bearing;
The upper and lower surface between described centre bearing and magnetic suspension bearing at described flywheel rotor assembly, be respectively equipped with upper rotor magnetic links and lower rotor magnetic links, described top, lower rotor magnetic links consist of respectively loop configuration, and magnetic links number of magnetic poles is separately 2P, wherein P is magnetic pole logarithm;
Described stator module comprises and is positioned at the upper stator assembly on described upper rotor magnetic links top and the bottom stator module that is positioned at described lower rotor magnetic links bottom; The lower surface of described upper stator assembly is provided with upper stator yoke, and the lower surface of described upper stator yoke is provided with upper stator PCB winding; The upper surface of described bottom stator module is provided with bottom stator yoke, and the upper surface of described bottom stator yoke is provided with bottom stator PCB winding.
2. magnetically levitated flywheel motor according to claim 1, it is characterized in that, magnetic suspension bearing comprises the static magnetic links of bottom magnetic suspension of being located at the top magnetic suspension rotating magnetic steel sheet of described flywheel rotor assembly upper and lower surface and bottom magnetic suspension rotating magnetic steel sheet, being located at the static magnetic links of top magnetic suspension of described upper stator assembly lower surface and being located at described bottom stator module upper surface described in every suit; Between described top magnetic suspension rotating magnetic steel sheet and the static magnetic links of top magnetic suspension, be that identical polar is opposed, mutually produce the active force repelling each other; Between described bottom magnetic suspension rotating magnetic steel sheet and the static magnetic links of bottom magnetic suspension, be that identical polar is opposed, mutually produce the active force repelling each other.
3. magnetically levitated flywheel motor according to claim 2, it is characterized in that, described top, bottom magnetic suspension rotating magnetic steel sheet and top, the static magnetic links of bottom magnetic suspension all adopt the annular plastics magnetic links of 0.5～5mm, and the difference of its external diameter and internal diameter is less than 20mm.
4. magnetically levitated flywheel motor according to claim 3, is characterized in that, is wherein provided with two cover magnetic suspension bearings, radially arrange between the two, and distance between the two should be greater than 2mm.
5. magnetically levitated flywheel motor according to claim 2, it is characterized in that, the working clearance between described top magnetic suspension rotating magnetic steel sheet and the static magnetic links of top magnetic suspension and between described bottom magnetic suspension rotating magnetic steel sheet and the static magnetic links of bottom magnetic suspension is 0.15～5 mm.
6. magnetically levitated flywheel motor according to claim 1, is characterized in that, the upper/lower terminal of described centre bearing is provided with upper and lower ripple packing ring and lower ripple packing ring.
7. magnetically levitated flywheel motor according to claim 1, is characterized in that, described top, bottom stator yoke are made by plastics soft magnetic material or soft magnetic ferrites.
8. magnetically levitated flywheel motor according to claim 1, is characterized in that, the thickness of described top, lower rotor magnetic links is 0.5～5mm; Described stator PCB winding is whole apart from winding, and a uniform Z=2Pm winding, and motor basic parameter should meet: π D/2P≤40mm, wherein D is that average diameter, the Z of annular magnetic steel disc are that empty groove number, the m of motor is the number of phases of motor.
9. magnetically levitated flywheel motor according to claim 8, is characterized in that, this motor is three-phase motor with permanent magnets, m=3 wherein, and Z=2Pm=6P, its U, V, W tri-phase windings form three-phase absolute coil windings or center line is connected to Y connected mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320529989.6U CN203481988U (en) | 2013-08-28 | 2013-08-28 | Magnetic suspension flywheel motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320529989.6U CN203481988U (en) | 2013-08-28 | 2013-08-28 | Magnetic suspension flywheel motor |
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| Publication Number | Publication Date |
|---|---|
| CN203481988U true CN203481988U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320529989.6U Expired - Fee Related CN203481988U (en) | 2013-08-28 | 2013-08-28 | Magnetic suspension flywheel motor |
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| Country | Link |
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| CN (1) | CN203481988U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015027409A1 (en) * | 2013-08-28 | 2015-03-05 | 深圳航天科技创新研究院 | Magnetic suspension flywheel motor |
| CN104734413A (en) * | 2015-03-10 | 2015-06-24 | 深圳航天科技创新研究院 | Magnetic suspension flywheel motor |
| CN114279467A (en) * | 2021-12-24 | 2022-04-05 | 深圳航天科技创新研究院 | Intelligent evaluation system and evaluation method for performance parameters of reaction flywheel |
-
2013
- 2013-08-28 CN CN201320529989.6U patent/CN203481988U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015027409A1 (en) * | 2013-08-28 | 2015-03-05 | 深圳航天科技创新研究院 | Magnetic suspension flywheel motor |
| CN104734413A (en) * | 2015-03-10 | 2015-06-24 | 深圳航天科技创新研究院 | Magnetic suspension flywheel motor |
| CN104734413B (en) * | 2015-03-10 | 2018-10-09 | 深圳航天科技创新研究院 | Magnetically levitated flywheel motor |
| CN114279467A (en) * | 2021-12-24 | 2022-04-05 | 深圳航天科技创新研究院 | Intelligent evaluation system and evaluation method for performance parameters of reaction flywheel |
| CN114279467B (en) * | 2021-12-24 | 2023-06-06 | 深圳航天科技创新研究院 | Intelligent evaluation system and method for reactive flywheel performance parameters |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20180828 |