CN206422646U - Energy accumulation device for fly wheel - Google Patents
Energy accumulation device for fly wheel Download PDFInfo
- Publication number
- CN206422646U CN206422646U CN201720036597.4U CN201720036597U CN206422646U CN 206422646 U CN206422646 U CN 206422646U CN 201720036597 U CN201720036597 U CN 201720036597U CN 206422646 U CN206422646 U CN 206422646U
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- Prior art keywords
- magnet
- rotating shaft
- magnetic suspension
- fly wheel
- accumulation device
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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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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The energy accumulation device for fly wheel that the utility model is provided, including：Rotor, stator and magnetic suspension bearing, the rotor includes rotating shaft and the flywheel being arranged in the rotating shaft, the magnetic suspension bearing includes the first magnet being arranged in rotating shaft and the second magnet and the 3rd magnet that are arranged on stator, axial direction of second magnet along the rotating shaft coordinates with first magnet gap, radial direction of 3rd magnet along the rotating shaft coordinates with first magnet gap, first magnet repels with second magnet axial, and first magnet and the 3rd magnet radially repel.The energy accumulation device for fly wheel self-discharge rate that the utility model is provided is low.
Description
Technical field
The utility model is related to energy storage device field, more particularly to a kind of energy accumulation device for fly wheel.
Background technology
Flywheel is a kind of mechanical device for being used to store rotation function in rotary motion.Flywheel energy storage is by accelerating to turn
Son (flywheel) is to flank speed, the energy storage mode by energy to be stored in the form of rotation function in system.When releasing energy, fly
Wheel speed is reduced；When storing energy, Speed of Reaction Wheels rise.
The watt Steam Engine Age that the origin of flywheel can be traced back to before more than 100 years, flywheel at that time is mainly used to keep
The steady operating of machine, purposes is relatively simple.Until in the 1990s, magnetic levitation technology fast-developing there is provided at a high speed
The contactless support of rotating machinery, cooperation vacuum technique, new high strength composite (such as carbon fibre composite), quickly
The motor technology and Power Electronic Technique of development, sensing technology, control technology, flying wheel battery enter high-speed development period, flywheel
Destruction does not occur for rotor and rotating speed is greatly improved, and frictional dissipation is preferably minimized level.
Flywheel energy storage system is also known as flying wheel battery or electromechanical cell, and it has become one newborn strength of battery industry,
In the trend of many substituted chemical cells of aspect.Compared with chemical cell, the advantage of flying wheel battery is mainly manifested in：
2. it is very friendly (absolute green product) to environment to temperature-insensitive；
2. energy storage density is high, and instantaneous power is big, and power density is even also higher than gasoline, thus in a short time can be with defeated
Go out bigger energy, this transmitting for being very beneficial for magnetic artillery and the quick startup of electric automobile；
3. in whole life cycle, energy storage density and service life will not be influenceed because of overcharge or overdischarge, and
Flywheel will not also suffer damage；
4. depth of discharge is easily measured and remaining " electricity "；
5. the charging interval is shorter, typically can be just full of battery in a few minutes；
6. service life depends primarily on the life-span of electronic component in flying wheel battery, general up to 20 years or so；
7. energy conversion efficiency is high, general up to 85%~95%, it means that have more available energy, less
Heat dissipation, and the energy conversion efficiency highest of chemical cell only has 75%；
8. when it and some devices are applied in combination, such as it is used to be combined together with satellite gravity anomaly device on satellite
When, its advantage is more obvious.On the whole, the utilisable energy density to flying wheel battery in 2007 is minimum also in 40Wh/kg
More than, highest has reached 944Wh/kg, it is seen that its advantage is fairly obvious.When it is used on electric automobile,
So that Prospect in Modern Auto Manufacture Industry person completely dispenses with consideration discharge of automobile exhaust fumes, so as to really start going through for non-exhaust emission automobile
History, reaches the purpose of energy-saving and emission-reduction.
But, due to flywheel high-speed rotation, rotation friction causes the self-discharge rate of flywheel energy storage high, such as stops charging,
Energy will voluntarily exhaust within a few to tens of hours.
Utility model content
For defect of the prior art, the utility model provides a kind of self-discharge rate low energy accumulation device for fly wheel.
The energy accumulation device for fly wheel that the utility model is provided, including：Rotor, stator and magnetic suspension bearing, the rotor include
Rotating shaft and the flywheel being arranged in the rotating shaft, the magnetic suspension bearing include the first magnet, the Yi Jishe being arranged in rotating shaft
Put the second magnet and the 3rd magnet on stator, axial direction of second magnet along the rotating shaft and first magnet gap
Coordinate, radial direction of the 3rd magnet along the rotating shaft coordinate with first magnet gap, first magnet and described the
Two magnet axials are repelled, and first magnet and the 3rd magnet radially repel.
The energy accumulation device for fly wheel that the utility model is provided, is connected, the second magnetic between stator and rotor by magnetic suspension bearing
Body is to the repulsion formation axial limiting of the first magnet, and the 3rd magnet forms radially spacing to the repulsion of the first magnet, so that turning
Son relative stator when higher than critical speed suspends, meanwhile, the rotor of high-speed rotation produces gyroscopic effect, and stability is carried with rotating speed
Rise, load capacity enhancing, so that reduce rotation friction, and the self discharge that frictional force is caused, reduce self-discharge rate.
The energy accumulation device for fly wheel that the utility model is provided can also have following supplementary features：
Further, in addition to set between rotor and stator axial direction protection bearing and radially protection bearing.
Further, the magnetic suspension bearing includes first magnet and second magnet；The rotating shaft is along vertical
Direction is set, and second magnet is located at the lower section of first magnet.
Further, the magnetic suspension bearing is many sets, is set along rotating shaft axially spaced-apart.
Further, the magnetic suspension bearing includes first magnet and second magnet；The magnetic suspension shaft
Hold and covered for morely, a portion magnetic suspension bearing is opposite along the axial installation direction of rotating shaft with the magnetic suspension bearing of remainder.
Further, the magnetic suspension bearing includes two the second magnets, and two second magnets are located at institute respectively
State two ends of first magnet along rotating shaft axial direction.
Further, the magnetic suspension bearing includes two the first magnets, and two first magnets are located at institute respectively
State two ends of second magnet along rotating shaft axial direction.
Further, the magnetic suspension bearing is more than two sets.
Further, in addition to vacuum casting, the rotor is arranged in the vacuum chamber of the vacuum casting formation.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described.In all of the figs, it is similar
Element or part are general by similar reference mark.In accompanying drawing, each element or part might not be according to actual ratios
Draw.
The structural representation for the energy accumulation device for fly wheel that Fig. 1 provides for an embodiment；
Fig. 2 is the axial sectional view of energy accumulation device for fly wheel in an embodiment；
Fig. 3 is the axial sectional view of energy accumulation device for fly wheel in another embodiment；
Fig. 4 is the axial sectional view of energy accumulation device for fly wheel in another embodiment；
Fig. 5 is the axial sectional view of energy accumulation device for fly wheel in another embodiment；
Fig. 6 is the axial sectional view of energy accumulation device for fly wheel in another embodiment.
Embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only
For clearly illustrating the technical solution of the utility model, therefore example is only used as, and this practicality can not be limited with this
New protection domain.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this reality
The ordinary meaning understood with new one of ordinary skill in the art.
Referring to Figures 1 and 2, in an embodiment, the energy accumulation device for fly wheel that the utility model is provided, including：Rotor, stator and
Magnetic suspension bearing 200, the rotor includes rotating shaft 110 and the flywheel 120 being arranged in the rotating shaft 110, and rotating shaft 110 also drives
Motor 300 is connected with, the magnetic suspension bearing 200 includes the first magnet 210 being arranged in rotating shaft 110 and be arranged on to determine
The second magnet 220 and the 3rd magnet 230 on son, axial direction of second magnet 220 along the rotating shaft 110 and first magnetic
The gap of body 210 coordinates, and radial direction of the 3rd magnet 230 along the rotating shaft 110 coordinates with the gap of the first magnet 210.Its
Described in the 3rd magnet be toroidal magnet, be enclosed on the outside of first magnet, the first magnet, the second magnet and the 3rd magnet are equal
Magnetize vertically, and the first magnet and the second magnet magnetizing direction are on the contrary, the first magnet and the 3rd magnet magnetizing direction are identical, because
This, first magnet 210 and second magnet 220 are mutually exclusive vertically, and first magnet 210 and the described 3rd
Magnet 230 is radially mutually exclusive.
The magnetic suspension bearing 200 is often covered in this implementation includes first magnet 210 and second magnet 220；
The magnetic suspension bearing 200 is two sets, wherein a set of magnetic suspension bearing 200 and another set of magnetic suspension bearing 200 are along the axle of rotating shaft 110
To installation direction on the contrary, so as to limit the axial movement of rotating shaft 110.
It should be appreciated that when rotating shaft is set along vertical mode, also first magnetic only can be located at comprising the second magnet
The magnetic suspension bearing of the lower section of body, the second magnet provides upward support force, as shown in fig. 6, covering magnetic suspension bearing, is respectively mounted more
Direction is identical.
The energy accumulation device for fly wheel that the present embodiment is provided, is connected, the second magnetic between stator and rotor by magnetic suspension bearing 200
The repulsion formation axial limiting of 220 pair of first magnet 210 of body, the repulsion formation of the 3rd 230 pair first of magnet magnet 210 is radially limited
Position, meanwhile, the rotor of high-speed rotation produces gyroscopic effect, improves stability, can be negative in carrying when rotating speed is higher than critical speed
In the case of load, stable suspersion reduces frictional resistance, reduces self-discharge rate.
Specifically, in the present embodiment, rotating shaft 110 is vertically set.Inventor is existed by the discovery that studies for a long period of time, rotor
When bearing radial direction external applied load, when rotating speed is relatively low, it is impossible to stable suspersion, stabilization is possible under the dynamic only when high speed rotates
Suspend.Therefore rotating shaft 110 is vertically set in the present embodiment, is reduced radial direction external applied load, during compared to rotating shaft horizontal positioned, is reached
Critical speed to stable state is low, improves energy storage efficiency.
Further, the energy accumulation device for fly wheel of the present embodiment also includes setting axial direction protection axle between rotor and stator
410 and radially protection bearing 420 are held, main rise is supported in static or startup to rotor, or is avoided when running at high speed
Rotor is surprisingly collided with stator, causes equipment fault.
Specifically, also bearing capacity can be improved by increasing the quantity of magnetic suspension bearing 200.
As shown in figure 3, in another embodiment, the installation direction of magnetic suspension bearing can also be in contrast with the previous embodiment.
Reference picture 4, in another embodiment, often covering the magnetic suspension bearing 200 includes two the second magnets 220, two
Individual second magnet 220 is located at two ends of first magnet 210 along the axial direction of rotating shaft 110 respectively.A set of magnetic suspension bearing 200
Two the second magnets, 220 pair of first magnet 210 carry out vertically bidirectionally limited.
Reference picture 5, in other embodiments, often covers and two the first magnets is may also include in the magnetic suspension bearing 200
210, two first magnets 210 are located at two ends of second magnet 220 along the axial direction of rotating shaft 110 respectively.
In another embodiment, energy accumulation device for fly wheel also includes vacuum casting, and the rotor is arranged on the vacuum casting shape
Into vacuum chamber in.So as to further reduce air drag when flywheel 120 is rotated, self-discharge rate is reduced.
It is all in above-mentioned multiple embodiments of the application in order to further improve the energy accumulation device for fly wheel of the application
Magnet all uses permanent magnet.If following shortcomings will be produced using electromagnet：One, it will consume the electric energy of a system part, from
And reduce the energy storage efficiency of system；Two, it must install multiple position sensors, once there is a failure, bearing cannot
Normal work, reduces the reliability of system；Three, the presence of control system adds the complexity of system, adds system mistake
The possibility of effect.All these also reduce the reliability of system in addition to the expense for having increased considerably system.
In the description of the present application, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", " water
It is flat ", " interior ", the orientation of the instruction such as " outer " or position relationship for based on orientation shown in the drawings or position relationship, merely to just
Described in description the utility model with simplified, rather than indicate or imply that the device or element of meaning must be with specific sides
Position, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying relatively important
Property or the implicit quantity for indicating indicated technical characteristic.In description of the present utility model, " multiple " are meant that two
More than, unless otherwise specifically defined.
In specification of the present utility model, numerous specific details are set forth.It is to be appreciated, however, that reality of the present utility model
Applying example can put into practice in the case of these no details.In some instances, known method, knot is not been shown in detail
Structure and technology, so as not to obscure the understanding of this description.
In the description of this specification, specific features, structure, material or feature can be in any one or more embodiments
Or combined in an appropriate manner in example.In addition, in the case of not conflicting, those skilled in the art can say this
The feature of not be the same as Example or example and non-be the same as Example or example described in bright book is combined and combined.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type, it all should cover among claim of the present utility model and the scope of specification.
Claims (9)
1. a kind of energy accumulation device for fly wheel, it is characterised in that including：Rotor, stator and magnetic suspension bearing, the rotor include rotating shaft
With the flywheel being arranged in the rotating shaft, the magnetic suspension bearing includes the first magnet being arranged in rotating shaft and is arranged on
Match somebody with somebody with first magnet gap the second magnet and the 3rd magnet on stator, axial direction of second magnet along the rotating shaft
Close, radial direction of the 3rd magnet along the rotating shaft coordinates with first magnet gap, first magnet and described second
Magnet axial is repelled, and first magnet and the 3rd magnet radially repel.
2. energy accumulation device for fly wheel according to claim 1, it is characterised in that also including setting between rotor and stator
Axially protection bearing and radially protection bearing.
3. energy accumulation device for fly wheel according to claim 1, it is characterised in that the magnetic suspension bearing includes first magnetic
Body and second magnet；The rotating shaft is vertically set, and second magnet is located at the lower section of first magnet.
4. energy accumulation device for fly wheel according to claim 3, it is characterised in that the magnetic suspension bearing is many sets, along rotating shaft
Axially spaced-apart is set.
5. energy accumulation device for fly wheel according to claim 1, it is characterised in that the magnetic suspension bearing includes first magnetic
Body and second magnet；The magnetic suspension bearing is many sets, the magnetic suspension of a portion magnetic suspension bearing and remainder
Installation direction of the bearing along rotating shaft axial direction is opposite.
6. energy accumulation device for fly wheel according to claim 1, it is characterised in that the magnetic suspension bearing includes two the second magnetic
Body, two second magnets are located at two ends of first magnet along rotating shaft axial direction respectively.
7. energy accumulation device for fly wheel according to claim 1, it is characterised in that the magnetic suspension bearing includes two the first magnetic
Body, two first magnets are located at two ends of second magnet along rotating shaft axial direction respectively.
8. the energy accumulation device for fly wheel according to claim 6 or 7, it is characterised in that the magnetic suspension bearing is more than two sets.
9. energy accumulation device for fly wheel according to claim 1, it is characterised in that also including vacuum casting, the rotor is set
In the vacuum chamber of vacuum casting formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720036597.4U CN206422646U (en) | 2017-01-12 | 2017-01-12 | Energy accumulation device for fly wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720036597.4U CN206422646U (en) | 2017-01-12 | 2017-01-12 | Energy accumulation device for fly wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206422646U true CN206422646U (en) | 2017-08-18 |
Family
ID=59571138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720036597.4U Active CN206422646U (en) | 2017-01-12 | 2017-01-12 | Energy accumulation device for fly wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206422646U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787409A (en) * | 2017-01-12 | 2017-05-31 | 陈科枫 | Energy accumulation device for fly wheel |
| CN111089709B (en) * | 2018-10-19 | 2021-04-20 | 华北电力大学 | Multifunctional heavy-load rotor testing device |
-
2017
- 2017-01-12 CN CN201720036597.4U patent/CN206422646U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787409A (en) * | 2017-01-12 | 2017-05-31 | 陈科枫 | Energy accumulation device for fly wheel |
| CN111089709B (en) * | 2018-10-19 | 2021-04-20 | 华北电力大学 | Multifunctional heavy-load rotor testing device |
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