CN204538879U - A kind of flywheel energy storage device - Google Patents
A kind of flywheel energy storage device Download PDFInfo
- Publication number
- CN204538879U CN204538879U CN201520183226.XU CN201520183226U CN204538879U CN 204538879 U CN204538879 U CN 204538879U CN 201520183226 U CN201520183226 U CN 201520183226U CN 204538879 U CN204538879 U CN 204538879U
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- China
- Prior art keywords
- flywheel
- rotor shaft
- pole wheel
- wear
- housing
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- Expired - Fee Related
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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 kind of flywheel energy storage device, comprise columniform vaccum case, stator winding and rotor shaft is provided with in housing, rotor shaft is positioned on housing axis, rotor shaft is connected with pole wheel, pole wheel connects flywheel, and around housing axis High Rotation Speed, flywheel is placed on a wear-resistant ball, resistance to grinding column or plane bearing.This device utilizes gyro principle, with the support as flywheel of wear-resistant ball, resistance to grinding column or plane bearing, the center of gravity of whole flywheel and magnetic pole concentrates on wear-resistant ball, resistance to grinding column or plane bearing, reduces the friction produced when flywheel rotates, substantially prolongs motor useful life, during power conversion, loss reduces greatly, meanwhile, this apparatus structure is simple, and cost is low, motor is easy to realize miniaturized and mass production, is very suitable for promoting on a large scale.
Description
Technical field
The utility model belongs to a kind of energy conversion device, is specifically related to a kind of flywheel energy storage device of new structure.
Background technology
In recent years, along with the fast development of distributed photovoltaic power generation and New-energy electric vehicle etc., the application of apparatus for storing electrical energy is increasingly extensive, and demand increases day by day.In numerous apparatus for storing electrical energy, energy accumulation device for fly wheel because of dynamic property good, long service life, does not have the advantages such as secondary pollution, is just receiving increasing concern.The general principle of flywheel energy storage is, first makes motor running drive flywheel High Rotation Speed by electric current, converts electrical energy into kinetic energy storage on rotor flywheel, when needing, then do generator operation by flywheel drive motor, the kinetic energy in flywheel is converted to electric energy.
Due to square being directly proportional of the kinetic energy that stores in rotor flywheel and Speed of Reaction Wheels, therefore, Speed of Reaction Wheels should be tried one's best height, and usual turn up tens thousand of revs/min is even higher.Flywheel not with extraneous positive energy exchange, when being namely in holding state, need to reduce standby energy loss as far as possible.
A kind of fixed form of the flywheel in existing energy accumulation device for fly wheel is fixed by bearing, and the shortcoming of this fixed form is that power conversion losses is large, and bearing friction heating is large, and bearing life is short, causes cost higher, makes its widespread adoption be subject to a definite limitation; The fixed form of another kind of flywheel utilizes magnetic suspension bearing technology that flywheel is in suspend without Frotteurism, the maximum speed of flywheel can be allowed like this to improve a lot, substantially increase the energy storage density of flywheel, not only the life-span is long, and loss decreases a lot, but it is too complicated that the shortcoming of this fixed form is device, apparatus cost is expensive, and widespread adoption is restricted equally.
Applicant has applied for that publication number is CN00406884, name is called the patent of invention of " a kind of low-loss energy accumulation device for fly wheel ", both the power conversion losses having avoided motor bearings fixed form is large, frictional heating is large, bearing life is short, be difficult to the shortcoming of penetration and promotion, turn avoid simultaneously and adopt magnetic suspension bearing technique device too complicated, manufacturing cost is high, market is difficult to accept, the shortcoming that cost performance is low.
Summary of the invention
The purpose of this utility model is to provide a kind of flywheel energy storage device, utilize gyro principle, with the support as flywheel of wear-resistant ball, resistance to grinding column or plane bearing, the weight of whole rotor and flywheel concentrates on wear-resistant ball, resistance to grinding column, reduce the load of bearing, substantially prolongs motor useful life, during power conversion, loss reduces greatly, and the energy storage density of flywheel is large; Meanwhile, this apparatus structure is simple, and cost is low, and motor is easy to realize miniaturized and mass production, is very suitable for promoting on a large scale.
For achieving the above object, the technical scheme that an embodiment of the present utility model is taked is:
Comprise columniform vaccum case, be provided with stator winding and rotor shaft in housing, rotor shaft is positioned on housing axis, around housing axis High Rotation Speed, rotor shaft is provided with pole wheel, and pole wheel connects flywheel, and flywheel is placed on a wear-resistant ball, resistance to grinding column or plane bearing.
Preferably, pole wheel is two, lays respectively at above and below described stator winding, and pole wheel and stator winding form two magnetic pole disc type electric machine, and flywheel is connected with the pole wheel be positioned at below stator winding.
Preferably, housing comprises upper cover plate, is provided with electric controller in housing, and electric controller is arranged on upper cover plate, and upper cover plate is provided with circuit hole and binding post.
Preferably, flywheel is provided with the cylindrical axis body stretched out along flywheel pivot downwards, axis body socket radial-thrust bearing.
Preferably, the upper surface in housing is provided with the limited post of multiple radial equipartition, the major diameter fit of limited post and rotor shaft.
The beneficial effect that disc type electric machine of the present utility model produces is: the operation principle adopting disc type electric machine, utilize gyro principle, with the support as flywheel and rotor of wear-resistant ball, resistance to grinding column or plane bearing, reduce the friction produced when flywheel rotates, extend motor useful life, during power conversion, loss reduces greatly, and the energy storage density of flywheel is large; Meanwhile, this apparatus structure is simple, and cost is low, and motor is easy to realize miniaturized and mass production, is very suitable for promoting on a large scale.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of a kind of flywheel energy storage device of the present utility model.
Fig. 2 is the structural representation of an embodiment of a kind of flywheel energy storage device of the present utility model.
Fig. 3 is the structural representation of an embodiment of a kind of flywheel energy storage device of the present utility model.
Wherein: 1, housing, 2, rotor shaft, 3, stator winding, 4, lower magnetic pole rotor, 5, flywheel, 6, wear-resistant ball, 7, electric controller, 8, binding post, 9, upper cover plate, 10, limited post, 11, radial-thrust bearing, 12, upper pole wheel, 13, axis body.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with the utility model specific embodiment and corresponding accompanying drawing, technical solutions of the utility model are clearly and completely described.
With reference to figure 1, in an embodiment of the present utility model, energy accumulation device for fly wheel comprises columniform vaccum case 1, and housing 1 can reduce the energy loss that windage causes for vacuum environment; Be provided with stator winding 3 and rotor shaft 2 in housing 1, rotor shaft 2 is positioned on housing 1 axis, and around housing 1 axis High Rotation Speed, rotor shaft 2 is provided with pole wheel, and pole wheel connects flywheel 5, and flywheel 5 is placed on a wear-resistant ball 6.
In an embodiment of the present utility model, flywheel 5 can also be placed on resistance to grinding column or plane bearing.
In an embodiment of the present utility model, wear-resistant ball or resistance to grinding column material used can be wear-resistant ceramic.
During this device input electric energy, although flywheel 5 High Rotation Speed, do not reach rated speed, guarantee that small area analysis also can allow motor improve rotating speed; When exporting electric energy as generator, guarantee to export electric energy changeable.
With reference to figure 1, Fig. 2, in an embodiment of the present utility model, pole wheel can be two, upper pole wheel 12 is positioned at the top of stator winding 3, lower magnetic pole rotor 4 is positioned at the below of stator winding 3, flywheel 5 is connected with lower magnetic pole rotor 4, and upper pole wheel 12, lower magnetic pole rotor 4 and stator winding 3 form two magnetic pole disc type electric machine.
With reference to figure 1, Fig. 2 or Fig. 3, in an embodiment of the present utility model, housing 1 comprises upper cover plate 9, electric controller 7 is provided with in housing 1, electric controller 7 pairs of energy storage devices control, electric controller 7 is arranged on upper cover plate 9, and upper cover plate 9 is provided with circuit hole and binding post 8, for the connection of energy storage device and external circuit.
With reference to figure 1, in an embodiment of the present utility model, flywheel 5 is provided with the cylindrical axis body 13 stretched out along flywheel pivot downwards, axis body 13 is socketed radial-thrust bearing 12, flies to be subject to external force collision, when pivot departs from casing centerline when flywheel 5, play position-limiting action, can ensure that flywheel 5 does not have large displacement and rocks, guarantee the reliable and stable use of energy storage device, raise the efficiency.
With reference to figure 1, Fig. 2 or Fig. 3, in an embodiment of the present utility model, upper surface in housing 1 is provided with the limited post 10 of multiple radial equipartition, limited post 10 has minim gap with the external diameter of rotor shaft 2, limited post 10 pairs of rotor shafts 2 effect of contractions, even if when being subject to external force collision, also can ensure that flywheel 5 does not have large displacement and rocks, flywheel 5 rotates more reliable and more stable.
Above-mentioned execution mode is used for explaining and the utility model is described; instead of the utility model is limited; in the protection range of spirit of the present utility model and claim, any amendment make the utility model and change, all fall into protection range of the present utility model.
Claims (5)
1. a flywheel energy storage device, it is characterized in that: comprise columniform vaccum case, stator winding and rotor shaft is provided with in described housing, described rotor shaft is positioned on described housing axis, around described housing axis High Rotation Speed, described rotor shaft is connected with pole wheel, and described pole wheel connects flywheel, and described flywheel is placed on a wear-resistant ball, resistance to grinding column or plane bearing.
2. device according to claim 1, is characterized in that: described pole wheel is two, and lay respectively at above and below described stator winding, described flywheel is connected with the pole wheel be positioned at below stator winding.
3. device according to claim 1 and 2, is characterized in that: described housing comprises upper cover plate, is provided with electric controller in described housing, and described electric controller is arranged on described upper cover plate, and described upper cover plate is provided with circuit hole and binding post.
4. device according to claim 1 and 2, is characterized in that: described flywheel is provided with the cylindrical axis body stretched out along flywheel pivot downwards, described axis body socket radial-thrust bearing.
5. device according to claim 4, is characterized in that: the upper surface in described housing is provided with the limited post of multiple radial equipartition or radial only bearing, the major diameter fit of described limited post or radial only bearing and described rotor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520183226.XU CN204538879U (en) | 2015-03-30 | 2015-03-30 | A kind of flywheel energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520183226.XU CN204538879U (en) | 2015-03-30 | 2015-03-30 | A kind of flywheel energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204538879U true CN204538879U (en) | 2015-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520183226.XU Expired - Fee Related CN204538879U (en) | 2015-03-30 | 2015-03-30 | A kind of flywheel energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204538879U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639036A (en) * | 2018-12-17 | 2019-04-16 | 沈阳微控新能源技术有限公司 | A kind of accumulated energy flywheel device |
| WO2023143375A1 (en) * | 2022-01-28 | 2023-08-03 | 华驰动能(北京)科技有限公司 | Flywheel energy storage device |
-
2015
- 2015-03-30 CN CN201520183226.XU patent/CN204538879U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639036A (en) * | 2018-12-17 | 2019-04-16 | 沈阳微控新能源技术有限公司 | A kind of accumulated energy flywheel device |
| WO2023143375A1 (en) * | 2022-01-28 | 2023-08-03 | 华驰动能(北京)科技有限公司 | Flywheel energy storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150805 |