CN110112860A - Five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device - Google Patents
Five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device Download PDFInfo
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- CN110112860A CN110112860A CN201910321690.3A CN201910321690A CN110112860A CN 110112860 A CN110112860 A CN 110112860A CN 201910321690 A CN201910321690 A CN 201910321690A CN 110112860 A CN110112860 A CN 110112860A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/30—Electric propulsion with power supplied within the vehicle using propulsion power stored mechanically, e.g. in fly-wheels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/02—Additional mass for increasing inertia, e.g. flywheels
- H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
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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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The present invention discloses a kind of five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device for electric car, it be sphere ring, lower section is outer toroid and inner disk that flywheel rotor middle section, which is main disk body, upper section, toroidal cavity is formed between inner disk and outer toroid, is external rotor electric machine in toroidal cavity；It is inwardly projecting spherical surface that the annulus outer wall of sphere ring, which is the spherical surface outwardly protruded, inner wall,；The radial stator of five degree of freedom magnetic bearing is topmost the upper end annulus of torus, upper end annulus lateral wall extends downwardly radially outer ring stator yoke, inner sidewall extends downwardly radially inner ring stator yoke, the inner sidewall of radially outer ring stator yoke lower end is inwardly extending radial between the inner sidewall of outer ring stator poles and forms spherical groove, spherical groove is formed between the lateral wall of the outwardly extending inner ring stator poles of the lateral wall of radially inner ring stator yoke lower end, sphere ring covers between inner ring stator poles and radially outer ring stator poles；Axial dimension is reduced, gyroscopic effect is inhibited.
Description
Technical field
The present invention relates to vehicle-mounted energy accumulation device for fly wheel (also referred to as flying wheel battery) fields for electric car, refer specifically to one kind
The vehicle-mounted energy storage device to be suspended using five degree of freedom unilateral side.
Background technique
Flying wheel battery is a kind of mechanical energy storage battery, with charge efficiency is high, specific power is big, quality is small, the pollution-free and longevity
The advantages such as life length, are the ideal power batteries of electric car.Currently, the main bugbear for restricting Development of Electric Vehicles is vehicle-mounted energy storage
The stability of device is poor, space occupancy rate is big and expensive etc. problem.Existing energy accumulation device for fly wheel is that have long master
The structure of axis, when energy storage device is by external interference, Yi Fasheng gyroscopic effect is not suitable for being applied to vehicle-mounted energy storage device.It has
Although the long spindle-type energy accumulation device for fly wheel of spherical surface can inhibit gyroscopic effect to a certain extent, due to main shaft axial length
Greatly, wild effect inevitably occurs.Dish-type energy accumulation device for fly wheel is with good stability, but traditional dish-type flywheel
Energy storage device is arranged in flywheel shaft to upper and lower two sides decentralised control, still using two degrees of freedom magnetic bearing and Three Degree Of Freedom magnetic bearing
Cause energy storage device axial length excessive, gyroscopic effect is still more apparent.
Since electric car space is limited, the requirement to the volume and quality of flying wheel battery is just relatively high.Mesh
The topological structure of preceding energy accumulation device for fly wheel still uses flywheel, motor, magnetic bearing independently to arrange, even if some topological structures are
It through flywheel and motor is integrated, but is band principal axis of inertia structure, therefore integrated level is relatively low, volume is relatively large, unfavorable
It is installed in electric car narrow space.In addition, the scale application in order to realize vehicle-mounted flying wheel battery, needs further to drop
The cost of low energy accumulation device for fly wheel.Most of flywheels are made of high strength composite, therefore expensive, are not easy to realize big
Scale promotes and applies.Although the flywheel being made of metal material has advantage at low cost, the basis of identical energy storage capacity
On, weight and volume is multiplied, and is not suitable for vehicle environment.Therefore it on the basis of meeting energy storage capacity, designs a kind of novel
High stability, high integration, low cost vehicle-mounted energy accumulation device for fly wheel be of great significance.Therefore, to vehicle-mounted for supporting
The five degree of freedom magnetic bearing of flying wheel battery improves and optimizes, such as Chinese Patent Application No. is 201910072060.7, name
Referred to as " the virtual shaft type flying wheel battery proposed in the document of virtual shaft type energy storage device of magnetic suspension flywheel for electric vehicle uses
A kind of support pattern of radial hybrid magnetic bearing realizes the twisting control of radial two degrees of freedom being translatable with radial two degrees of freedom, adopts
Axial single-degree-of-freedom control is realized with the support pattern of separate type axial magnetic bearing.Separate type axial magnetic bearing utilizes embedded pair
The structure of magnet ring increases axialy offset magnetic flux, can be realized biggish axial bearing capacity, but in order to realize axial control
Leakage field is generated, inevitably so as to cause energy consumption increase.The program uses separate type five degree of freedom magnetic bearing, although keeping
The control of flywheel five degree of freedom is able to achieve on the basis of flywheel energy storage amount again, still, due to being embedded in flywheel in the magnetic bearing component of part
In rotor, processing difficulties, and be difficult to repair.
Summary of the invention
Serious, space occupancy rate that it is an object of the present invention to gyroscopic effects existing for the existing vehicle-mounted energy accumulation device for fly wheel of solution
It is big and expensive and the problem of energy consumption is high, provide a kind of five degree of freedom unilateral side suspension bearing formula dribbling flywheel integration vehicle
Energy storage device is carried, is realized from structure and is reduced the gyroscopic effect of flywheel rotor, reduce space occupancy rate, improve integrated level, drop
Low cost and energy consumption.
The purpose of the present invention is what is realized using following technical scheme: most external is a closed outer shell cavity, shell
Intracavitary heart arrangement five degree of freedom magnetic bearing coaxial from top to bottom, flywheel rotor and external rotor electric machine, five degree of freedom magnetic axis are contracted
Include radial stator and axial stator, it be sphere ring, lower section is outer circle that the middle section of the flywheel rotor, which is main disk body, upper section,
Ring and inner disk are fixedly connected with downwards the identical outer toroid of outer diameter, the following table of main disk body at the lower surface edge of main disk body
Face middle is fixedly connected with inner disk, and the internal diameter of outer toroid is greater than the outer diameter of inner disk, and circle is formed between inner disk and outer toroid
Annular groove is the external rotor electric machine in the toroidal cavity；The upper surface middle of main disk body is fixedly connected with one
Sphere ring, the outer diameter of sphere ring is greater than the outer diameter of inner disk, internal diameter is less than the outer diameter of inner disk, outside the annulus of sphere ring
Wall is the spherical surface outwardly protruded, and inner wall is inwardly projecting spherical surface；The radial stator is topmost the upper end circle of torus
Ring, upper end annulus lateral wall extend downwardly the identical radially outer ring stator yoke of 3 sizes, and upper end annulus inner sidewall extends downwardly 3
The identical radially inner ring stator yoke of a size, forms a circle between the radially outer ring stator yoke and radially inner ring stator yoke
Annular groove；The inner sidewall of each radially outer ring stator yoke lower end extends internally a radially outer ring stator poles, each radially outer ring
The inner sidewall of stator poles is concave spherical surface, forms a spherical groove between the inner sidewall of 3 radially outer ring stator poles；Each radial direction
The lateral wall of inner ring stator yoke lower end extends outwardly an inner ring stator poles, and the lateral wall of each inner ring stator poles is concave spherical surface, and 3
A spherical groove is formed between the lateral wall of a inner ring stator poles；The sphere ring is covered in 3 inner ring stator poles and 3
Between radially outer ring stator poles, 3 radially outer ring stator poles formed spherical groove with a gap concentric set in sphere ring
Outside, the spherical groove formed between 3 inner ring stator poles with gap concentric set in sphere ring；The radially outer ring is fixed
It is wound with radial outer wall control coil on sub- yoke, inner radial wall control coil is wound in radially inner ring stator yoke；On radial stator
The inner ring permanent magnet of inner circle ring body is placed in top in annular groove and axial stator is placed in outer ring permanent magnet, lower section, and inner ring is forever
Magnet and outer ring permanent magnet magnetizing direction are axially downwardly to magnetize.
The upper layer of the axial stator is made of axial inner ring stator yoke, axial outer ring stator yoke and 3 torsion poles, axis
It is torus to inner ring stator yoke and axial outer ring stator yoke, the outer wall of axial inner ring stator yoke and axial outer ring stator yoke
It is fixedly connected with the identical torsion pole of 3 be distributed uniformly and circumferentially between inner wall, is wound with torsion control coil in torsion extremely；
The lower surface of inner ring stator yoke radially connects first axis stator poles and the second axial stator pole, outer ring stator yoke from inside to outside
Lower surface radial connect third axial stator pole and the 4th axial stator pole, first axis stator poles and the second axis from inside to outside
To axial default pilot trench is formed between stator poles, axial inner loop control coil is placed in axial default pilot trench, third is axially fixed
Axial external stator slot is formed between sub- pole and the 4th axial stator pole, is placed with axial outer loop control line in axial external stator slot
Circle.
The beneficial effect of the present invention compared with prior art is:
1, present invention breakthrough conventional support system is distributed in flywheel using two degrees of freedom magnetic bearing and Three Degree Of Freedom magnetic bearing
The limitation of two sides decentralised control above and below rotor, supporting system of the invention use highly integrated five degree of freedom magnetic bearing, magnetic axis
It holds and is fully integrated into this side of the upper section of flywheel rotor, reduce axial dimension, it is suppressed that gyroscopic effect.
2, the present invention slots flywheel rotor lower part, and motor stator and motor permanent magnet are embedded in the cell wall of flywheel rotor
On, magnetic bearing radial stator and the thrust ring on flywheel rotor top are organically combined, magnetic bearing, flywheel and motor integral are realized
Change, is not take up extra space, realizes the integrated of height, saved cost.
3, flywheel rotor approximation round pie of the invention, compared to the disk that same size has centre bore due to shaft
The energy storage density of flywheel, solid round pie flywheel rotor of the invention can double.Flywheel uses metal material processing, in reality
Show and has been reduced costs in same energy storage effect.
4, magnetic bearing and flywheel are sealed in a vacuum casting by the present invention, are eliminated windage and are brought to flywheel
Loss.Outer wall uses a large amount of cooling fin, solves the problems, such as the heating of flywheel rotor when high speed, reduces energy consumption.
5, the influence of gyroscopic effect is fully considered, flywheel rotor main body of the invention is no axis hole filled circles dish structure, can
Preferably to inhibit gyroscopic effect.In addition, the thrust disc on flywheel rotor to be designed as to the thrust annulus flat with spherical surface, can make
Rotor multi-dimensional movement and radial bearing capacity is big, when rotor deflects, electromagnetic force can be directed toward the centre of sphere of thrust annulus always, from
And the disturbance torque of radial stator pole pair rotor generation is reduced, therefore, ball disk integrated flywheel is effective that gyro is inhibited to imitate
It answers.In addition, flat thrust annulus of the invention reduces the air of flywheel rotor compared to the thrust disc of traditional elongate shape
Frictional dissipation reduces energy consumption.
6, twist coil and axial coil decentralised control make control simply and accurate, and using mature Driven by inverter
Radial control coil, so that energy consumption and cost reduce, to realize control precisely low energy consumption again five degree of freedom magnetic axis at low cost
It holds.
Detailed description of the invention
Fig. 1 is structural upright structure chart of the invention；
Fig. 2 is the internal structure front view of Fig. 1；
Fig. 3 is the structure sectional view of the shell in Fig. 1；
Fig. 4 is the stereochemical structure enlarged cross-sectional view of the flywheel rotor in Fig. 1；
Fig. 5 is the three-dimensional structure enlarged cross-sectional view of the radial stator of five degree of freedom magnetic bearing in Fig. 1；
Fig. 6 is the three-dimensional structure perspective view of the radial stator of five degree of freedom magnetic bearing in Fig. 1；
Fig. 7 is the three-dimensional structure enlarged cross-sectional view of the axial stator of five degree of freedom magnetic bearing in Fig. 1；
Fig. 8 is the assembling structure cross-sectional view of five degree of freedom magnetic bearing and flywheel rotor in Fig. 1；
Fig. 9 is motor and flywheel rotor assembling structure amplification front elevation in Fig. 1；
Figure 10 is motor and flywheel rotor assembling structure enlarged plan view in Fig. 1；
Figure 11 is the schematic enlarged-scale view of motor stator in Figure 10；
Figure 12 is the schematic diagram that five degree of freedom magnetic bearing realizes static driven suspension when the invention works；
Figure 13 is the schematic diagram for realizing the radial control of two degrees of freedom balance and twist-fit control when the invention works；
Figure 14 is to realize radial two degrees of freedom balance control principle explanation figure when the invention works；
Figure 15 is the schematic diagram for realizing axial single-degree-of-freedom balance control when the invention works.
In figure: 11. upper end covers；12. outer body；121. top annulus；122. middle part annulus；123. lower part annulus；124.
First cooling fin；125. the second cooling fin；
13. lower cover；
2. radial stator；21. upper end annulus；22. the first radially outer ring stator yoke；23. the second radially outer ring stator yoke；
24. third radially outer ring stator yoke；25. the first radially outer ring stator poles；26. the second radially outer ring stator poles；27. third is radial
Outer ring stator poles；28. radially inner ring stator yoke；29. radially inner ring stator poles
31. inner radial wall control coil；32. radial outer wall control coil；
4. axial stator；41. axial inner ring stator yoke；421. first torsion poles；422. second torsion poles；423. thirds are turned round
Turn pole；43. axial outer ring stator yoke；44. first axis stator poles；45. the second axial stator pole；46. third axial stator pole；
47. the 4th axial stator pole；
51. axial inner loop control coil；52. axial outer loop control coil；53. reversing control coil；
61. inner ring permanent magnet；62. outer ring permanent magnet；
7. flywheel rotor；71. sphere ring；72. main disk body；73. inner disk；74. outer toroid
81. motor stator；811. upper end motor stators；812. intermediate motor stators；813. lower end motor stators；82. electricity
Machine coil；83. motor permanent magnet
Specific embodiment
Referring to figure 1 and figure 2, most external of the invention is an outer shell cavity, and shell is by an outer body 12, one
Upper end cover 11 and a lower cover 13 form, and the upper end of outer body 12 is tightly fastened connection upper end cover 11, the lower end of outer body 12
It is tightly fastened connection lower cover 13, outer shell cavity is surrounded by outer body 12, upper end cover 11 and lower cover 13, three's formation one is closed
Vacuum chamber.
In the intracavitary heart arrangement five degree of freedom magnetic bearing coaxial from top to bottom of shell, flywheel rotor 7 and external rotor electric machine.Its
In, five degree of freedom magnetic bearing includes the parts such as radial stator 2, axial stator 4.External rotor electric machine includes motor stator 81, motor
The parts such as permanent magnet 83.Five degree of freedom magnetic bearing is located at the top of flywheel rotor 7, and external rotor electric machine is embedded in flywheel rotor 7
Lower part.
As shown in figure 3, outer body 12 is by 121, middle part annulus 122 of a top annulus and a lower part annulus 123
It is sequentially connected composition.The internal diameter of top annulus 121 is identical with the internal diameter of middle part annulus 122, the outer diameter of middle circle 122 and lower part
The outer diameter of annulus 123 is identical, and the outer diameter of top annulus 121 is less than the internal diameter of lower part annulus 123.The upper surface of middle part annulus 122
It is closely connect with the lower end surface of top annulus 121, the lower end surface of middle part annulus 122 closely connects with the upper surface of lower part annulus 123
It connects, in this way, the lateral surface of the lateral surface of top annulus 121,122 upper surface of middle part annulus and lower part annulus 123 constitutes platform
Rank cylindrical shape.On the upper surface of middle part annulus 122, it is distributed uniformly and circumferentially 18 the first cooling fins 124, first
Cooling fin 124 is triangle sheet, and the right angle bottom surface of the first cooling fin 124 is connect with the upper surface of middle part annulus 122, first
Another right-angle surface of cooling fin 124 is connect with the lateral surface of top annulus 121.On the lateral surface of lower part annulus 123, along circle
Circumferential direction has been uniformly distributed 18 the second cooling fins 125.On top, annular groove is opened in the upper surface middle of annulus 121, passes through
It is interference fitted and is coupled with the lower end surface of upper end cover 11, annular groove is opened in the lower end surface middle of annulus 123 in lower part, passes through
It is interference fitted and is coupled with the upper surface of lower cover 13.Such as Fig. 1, upper end cover 11 is solid disk, the outer diameter of upper end cover 11 and
The outer diameter of top annulus 121 is identical, and it is identical rectangular scattered that 18 shapes are distributed uniformly and circumferentially on 11 upper surface of upper end cover
Backing.Lower cover 13 is solid disk, and the outer diameter of upper end cover 13 is identical with the outer diameter of lower part annulus 123,13 lower end surface of upper end cover
On be distributed uniformly and circumferentially the identical square radiating plate of 18 shapes.Upper end cover 11 and lower cover 13 are relative to outer body 12
The two installation symmetrical above and below, the outer diameter of upper end cover 11 are less than the outer diameter of lower cover 13.A large amount of installation cooling fins can effectively dissipate winged
The heat generated when taking turns 7 high speed rotation of rotor, makes the airtight vacuum chamber being made of outer body 12, upper end cover 11 and lower cover 13
Effectively reduce windage loss.
It is shown in Figure 4, it is the structure of flywheel rotor 7.7 main body of flywheel rotor be by coaxially assemble sphere ring 71,
Main disk body 72, inner disk 73 and outer toroid 74 are constituted.Peripheral entirety is cylindrical structure, wherein the middle section of flywheel rotor 7 is
It is outer toroid 74 and inner disk 73 that main disk body 72, upper section, which are sphere ring 71, lower section, and upper, middle and lower segment is from top to bottom successively
It stacks and is tightly fastened and link together.Outer toroid 74, main disk are fixedly connected at the lower surface edge of main disk body 72 downwards
Body 72 is identical with the outer diameter of outer toroid 74, and the outer diameter of the two is less than the internal diameter of outer body 12, can be contained in outer body 12.Main circle
The lower surface middle of disk body 72 is fixedly connected with inner disk 73, and the lower end surface of inner disk 73 and the lower end surface of outer toroid 74 flush.
The internal diameter of outer toroid 74 is greater than the outer diameter of inner disk 73, therefore in the main disk body 72, inner disk 73 and outer toroid of flywheel rotor 7
Toroidal cavity is formed between 74, and external rotor electric machine is installed in the toroidal cavity.The upper surface middle of main disk body 72 is solid
Surely a sphere ring 71 is connected, the outer diameter of sphere ring 71 is greater than the outer diameter of inner disk 73, and the internal diameter of sphere ring 71 is less than
The outer diameter of inner disk 73.The annulus outer wall of sphere ring 71 is processed into the spherical surface outwardly protruded, and circle ring inner wall is processed into inwardly
The spherical surface of protrusion.
It is the structure of the radial stator 2 of five degree of freedom magnetic bearing as shown in Figure 5,6.Radial stator 2 is by coaxially arranged upper
Hold annulus 21, the first radially outer ring stator yoke 22, the second radially outer ring stator yoke 23, third radially outer ring stator yoke 24, first
Radially outer ring stator poles 25, the second radially outer ring stator poles 26, third radially outer ring stator poles 27,28 and of radially inner ring stator yoke
Radially inner ring stator poles 29 form.It wherein, is topmost the upper end annulus 21 of torus, annulus 21 lateral wall in upper end extends downwardly
The identical radially outer ring stator yoke of 3 sizes, be respectively the first radially outer ring stator yoke 22, the second radially outer ring stator yoke 23,
Third radially outer ring stator yoke 24, three radially outer ring stator yokes are outer peripheral circumference arc-shaped and along upper end annulus 21
Direction is evenly arranged.Equally, annulus 21 inner sidewall in upper end extends downwardly 3 sizes, 28,3 diameters of identical radially inner ring stator yoke
It is evenly arranged to inner ring stator yoke 28 along the inner edges direction of upper end annulus 21.Radially outer ring stator yoke 22,23,24 and on
The upper surface of annulus 21, radially inner ring stator yoke 28 is held to flush.Radially outer ring stator yoke 22,23,24 and radially inner ring stator
The lower end surface of yoke 28 flushes.The internal diameter of radially outer ring stator yoke 22,23,24 is greater than the outer diameter of radially inner ring stator yoke 28, two
An annular groove is formed between person, and axial stator 4 and inner ring permanent magnet 61, outer ring permanent magnet 62 are installed in the annular groove.
The inner sidewall of each radially outer ring stator yoke lower end extends internally a radially outer ring stator poles, is the first diameter respectively
To outer ring stator poles 25, the second radially outer ring stator poles 26, third radially outer ring stator poles 27.Each radially outer ring stator poles
Inner sidewall is concave spherical surface, and the inner sidewall of 3 radially outer ring stator poles is on the same spherical.First radially outer ring stator poles
25, a ball is formed between this 3 radially outer ring stator poles of the second radially outer ring stator poles 26, third radially outer ring stator poles 27
The spherical surface size of connected in star, the annulus outer wall outer wall of the sphere ring 71 of the size and flywheel rotor 7 of spherical groove is identical.Equally
Ground, the lateral wall of each 28 lower end of radially inner ring stator yoke extend outwardly an inner ring stator poles 29, each inner ring stator poles 29
Lateral wall be concave spherical surface, the lateral wall of 3 inner ring stator poles 29 on the same concave spherical surface, this 3 inner ring stator poles 29 it
Between form a spherical groove, the spherical groove is identical with the spherical surface size of the circle ring inner wall of the sphere ring 71 of flywheel rotor 7.
3 inner ring stator poles 29 and 3 radially outer ring stator poles are facing one by one radially.The spherical surface circle of flywheel rotor 7 when installation
71 sets of ring between 3 inner ring stator poles 29 and 3 radially outer ring stator poles, 3 radially outer ring stator poles formed spherical female
Coaxial heart covers outside sphere ring 71 slot with a gap, the coaxial heart of spherical groove formed between 3 inner ring stator poles 29
It covers in sphere ring 71.First radially outer ring stator poles 25, the second radially outer ring stator poles 26, third radially outer ring stator poles
27 lower end surface and the first radially outer ring stator yoke 22, the second radially outer ring stator yoke 23, third radially outer ring stator yoke 24
Lower end surface flushes.
The internal diameter of radially outer ring stator yoke 22,23,24 is greater than the internal diameter of radially outer ring stator poles 25,26,27, radially outer ring
The internal diameter of stator poles 25,26,27 is greater than the outer diameter of radially inner ring stator poles 29, and the outer diameter of radially inner ring stator poles 29 is greater than radial
The outer diameter of inner ring stator yoke 28.In this way, being formed between radially outer ring stator yoke, upper end annulus 21, radially inner ring stator yoke 28
One annular groove forms the circle that an inside and outside wall is spherical surface between radially outer ring stator poles 27 and radially inner ring stator poles 29
Annular groove.Radial outer wall control coil 32 is respectively wound around in radially outer ring stator yoke 22,23,24, inner radial wall control coil
31 are respectively wound around in three radially inner ring stator yokes 28.
It is the structure of the axial stator 4 of five degree of freedom magnetic bearing as shown in Figure 7.Axial stator 4 is by coaxially arranged axial direction
Inner ring stator yoke 41, first reverses pole 421, second and reverses pole 422, third torsion pole 423, axial outer ring stator yoke 43, first
Axial stator pole 44, the second axial stator pole 45, third axial stator pole 46 and the 4th axial stator pole 47 composition.Axial stator
4 upper layer is by pole 422 is reversed in axial inner ring stator yoke 41, first torsion pole 421, second, third reverses pole 423 and axis is outside
Ring stator yoke 43 forms similar circular.Axial inner ring stator yoke 41 and axial outer ring stator yoke 43 are torus.It is axial
The outer wall of inner ring stator yoke 41 is distributed uniformly and circumferentially the identical torsion pole 421,422,423 of 3 shapes, torsion pole 421,
422,423 be shoe.Reverse the inside and outside wall of pole 421,422,423 respectively with the outer wall of axial inner ring stator yoke 41 and axial outer ring
The inner wall of stator yoke 43 is tightly fastened connection.Reverse pole 421,422,423, inner ring stator yoke 41 and outer ring stator yoke 43 up and down
End face flushes.Therefore, torsion stator slot is formd between 3 torsion poles 421,422,423, to install torsion control line
Torsion control coil 53 is wrapped on torsion pole 421,422,423 by circle 53.The lower surface of inner ring stator yoke 41 radially by
First axis stator poles 44 and the second axial stator pole 45, first axis stator poles 44 and the second axial stator pole are connected from inside to outside
45 lower end surfaces flush.Axially determine the radial third axial stator pole 46 and the 4th that connects from inside to outside in the lower surface of outer ring stator yoke 43
Sub- pole 47, third axial stator pole 46 and 47 lower end surface of the 4th axial stator pole flush.First axis stator poles 44, second are axial
Stator poles 45, third axial stator pole 46 and the 4th axial stator pole 47 are torus, and four upper and lower end face flushes.
The internal diameter of first axis stator poles 44 is identical with the internal diameter of axial inner ring stator yoke 41, the outer diameter and axis of the second axial stator pole 45
Outer diameter to inner ring stator yoke 41 is identical, the internal diameter of the outer diameters of first axis stator poles 44 less than the second axial stator pole 45.The
The internal diameter of three axial stator poles 46 is identical with the internal diameter of axial outer ring stator yoke 43, the outer diameter and axial direction of the 4th axial stator pole 47
The outer diameter of outer ring stator yoke 43 is identical, the internal diameter of the outer diameter of third axial stator pole 44 less than the 4th axial stator pole 45.Therefore,
Between first axis stator poles 44 and the second axial stator pole 45, third axial stator pole 46 and the 4th axial stator pole 47 it
Between form stator slot inside and outside axial direction, axial default pilot trench places axial inner loop control coil 51, is wrapped in first axis stator poles
On 44 outer walls, axial external stator slot places axial outer loop control coil 52, is wrapped on 46 outer wall of third axial stator pole.Control
Coil is by three-phase converter.
Referring to shown in Fig. 1,2,3,4,5,6,7,8, flywheel rotor 7 is located at the internal axis of the closed vacuum chamber of shell
Middle.Intracavitary in shell, five degree of freedom magnetic bearing and flywheel rotor 7 are coaxially distributed.Five degree of freedom magnetic bearing includes radial fixed
The parts such as son 2, axial stator 4, inner ring permanent magnet 61, outer ring permanent magnet 62.The radial stator 2 of five degree of freedom magnetic bearing, axial direction
Stator 4, inner ring permanent magnet 61, outer ring permanent magnet 62 and the coaxial distribution of flywheel rotor 7, the upper end annulus 21 of radial stator 2 it is upper
Surface is tightly fastened with the lower surface of disc upper end cover 11 to be connected.The lower surface of radial stator 2 and the main disk of flywheel rotor 7
There are the gaps of 1mm for the upper surface of body 72.Inner and outer ring permanent magnet 61,62, lower section are placed in top in the annular groove of radial stator 2
Place axial stator 4.Inner ring permanent magnet 61 and outer ring permanent magnet 62 are torus.Wherein, inner ring permanent magnet 61 and outer ring be forever
The upper surface of magnet 62 is fixedly attached to the lower surface of radial stator 2, and the upper surface of axial stator 4 is affixed to inner ring permanent magnetism
The lower surface of body 61 and outer ring permanent magnet 62, and the internal diameter of axial stator 4 is equal to the internal diameter of inner ring permanent magnet 61, and second is axial
The outer diameter of stator poles 45 is equal to the outer diameter of inner ring permanent magnet 61, and the internal diameter of third axial stator pole 46 is equal to outer ring permanent magnet 62
Internal diameter, the outer diameter of axial stator 4 are equal to the outer diameter of outer ring permanent magnet 62.The internal diameter of the radially outer ring stator yoke 24 of radial stator 2
Greater than the outer diameter of axial stator 4, the internal diameter of axial stator 4 is greater than the outer diameter of the radially inner ring stator yoke 28 of radial stator 2.It is radial
The inside and outside wall of stator 2 is the sphere ring 71 that flywheel rotor 7 is placed in the annular groove of spherical surface.Wherein, sphere ring 71 is upper
The lower surface of surface and axial stator 4 is there are the air gap of 0.5mm, and the radial direction of the upper surface of sphere ring 71 and radial stator 2
The upper surface of inner ring stator poles 29 and the upper surface of radially outer ring stator poles 27 flush.The spherical medial surface of sphere ring 71 with
The convex sides face of the radially inner ring stator poles 29 of radial stator 2 is face-to-face radially, between at a distance of 0.5mm, sphere ring
71 convex sides face and the spherical medial surface of the radially outer ring stator poles 27 of radial stator 2 are face-to-face radially, Zhi Jianxiang
Away from 0.5mm.The internal diameter of sphere ring 71 is less than the internal diameter of axial stator 4, and the outer diameter of sphere ring 71 is greater than the outer of axial stator 4
Diameter.
The inner ring permanent magnet 61 and outer ring permanent magnet 62 of circular ring shape are all made of high-performance rare-earth material neodymium iron boron and are made, the two
Magnetizing direction be axially downwardly to magnetize.
Referring to Fig. 8, the upper surface of 7 sphere ring 71 of flywheel rotor and the lower surface of axial stator 4 at a distance of 0.5mm, i.e., and
The lower surface of first axis stator poles 44 forms axial air-gap at a distance of 0.5mm；Apart with the lower surface of the second axial stator pole 45
0.5mm forms axial air-gap；The lower surface of third axial stator pole 46 forms axial air-gap at a distance of 0.5mm；4th is axial fixed
The lower surface of sub- pole 47 forms axial air-gap at a distance of 0.5mm.The spherical medial surface and radial direction of 7 sphere ring 71 of flywheel rotor are fixed
There are the air gaps of 0.5mm for the outside spherical shape groove face of the radially inner ring stator poles 29 of son 2, form radial air gap；Sphere ring 71
There are the air gaps of 0.5mm for the inside spherical shape groove face of the radially outer ring stator poles 27 of convex sides face and radial stator 2, are formed radial
Air gap.
Referring to shown in Fig. 1,2,9,10, motor, the i.e. main disk in flywheel rotor 7 are installed in the underface of flywheel rotor 7
Installation in annular groove is formed between body 72, inner disk 73 and outer toroid 74.External rotor electric machine include fixed motor stator 81,
Electrical-coil 82 and revolvable motor permanent magnet 83.83 coaxial sleeve of motor permanent magnet outside motor stator 81, outer wall and fly
The inner wall for taking turns the outer toroid 74 of rotor 7 fits closely, and is fixed together, i.e., motor permanent magnet 83 is revolvable rotor portions
Point.Motor permanent magnet 83 is the identical arcuation body of 16 sizes, and the direction along the inner wall circumference of outer toroid 74 is evenly arranged.Motor is forever
The lower end surface of magnet 83 is flushed with the lower end surface of outer toroid 74, the upper surface of motor permanent magnet 83 and the lower end surface of main disk body 72
Between there are certain gaps.
For another example Figure 11, motor stator 81 is by a upper end motor stator with pole shoe 811, one intermediate motor stators 812
It is formed by connecting with a lower end motor stator 813.The upper and lower ends of motor stator 812 distinguish close connecting band pole shoe among shoe
811 lower surface of upper end motor electronic 813 upper surface of inward flange and shoe lower end motor stator outer edge.12 size phases
Same motor stator 81 is distributed uniformly and circumferentially under the outer edge of the inner disk 73 of flywheel rotor 7, motor stator 81
The lower surface of end motor stator 813 is tightly fastened with the upper surface of lower cover 13 to be connect, the lower end motor stator of motor stator 81
813 upper surface and the lower surface of inner disk 73 are not in contact with each other, the inner wall of upper end motor stator 811 and intermediate motor stator 812
The lateral wall of inner wall and inner disk 73 be not in contact with each other, the outer wall of upper end motor stator 811 and the inner wall of motor permanent magnet 83 stay
There is the air gap of 0.5mm, the upper surface of upper end motor stator 811 is flushed with the upper surface of motor permanent magnet 83.Electrical-coil 82 twines
It is wound on the upper end motor stator 811 of each motor stator 81, and electrical-coil 82 is not in contact with each other with flywheel rotor 7.Flywheel turns
The coaxial assembly of son 7, motor stator 81, motor permanent magnet 83 and lower cover 13.
Electrical-coil 82 is passed through three-phase alternating current, the magnetic field of a rotation is generated between air gap, so that motor permanent magnet 83
Magnetic pull is generated, pulling force effect will generate torque in motor permanent magnet 83, so that driving motor permanent magnet 83 rotates, due to flying
Wheel rotor is fixedly connected with motor permanent magnet 83, so driving flywheel rotor 7 rotates.
When the invention works, static driven suspension, the radial two degrees of freedom balance, radial torsion of flywheel rotor 7 are able to achieve
Two degrees of freedom balance and axial single-degree-of-freedom balance.In terms of axial control, axial inner loop control coil 51 and axial outer ring
Control coil 52 passes to direct current and axial stator forms electromagnet, is changed by changing the size and Orientation of control direct current
Flywheel rotor stress size and direction in axial direction, to realize the control to axial one degree of freedom.In terms of radial control, diameter
Inward wall control coil 31 and radial outer wall control coil 32 pass to AC three-phase, by changing control coil size of current,
Realize being precisely controlled for radially two freedom degrees.In terms of reversing control, torsion control coil 53 passes to direct current, passes through
The size and Orientation for changing control direct current realizes torsion control to change.It is specific as follows:
The realization of static driven suspension: referring to Figure 12, the biasing magnetic flux of inner ring permanent magnet 61 and the generation of outer ring permanent magnet 62
As shown in Fig. 6 dotted line and arrow, the biasing magnetic flux that inner ring permanent magnet 61 generates begins to pass through axial direction from the pole N of inner ring permanent magnet 61
Stator poles 44,45, then it is successively fixed by axial air-gap, the upper surface of sphere ring 71, sphere ring 71, radial air gap, radial direction
Radially inner ring stator poles 29, the radially inner ring stator yoke 28, upper end annulus 21 of son 2, eventually pass back to the pole S of inner ring permanent magnet 61.
Equally, the biasing magnetic flux that outer ring permanent magnet 62 generates begins to pass through axial stator pole 46,47 from the pole N of inner ring permanent magnet 62, then
Successively pass through axial air-gap, the upper surface of sphere ring 71, sphere ring 71, radial air gap, radial stator 2, eventually passes back to interior
The pole S of ring permanent magnet 62.When flywheel rotor 7 is in center equilbrium position, the central axis of flywheel rotor 7 and the axial direction of magnetic bearing
Center overlapping of axles.Radially, the interior outside spherical surface and radially inner and outer ring stator poles 29,27 of the sphere ring 71 of flywheel rotor 7
Rounded channels between air-gap flux it is essentially equal, therefore flywheel rotor 7 realizes 7 diameter of rotor radially by electromagnetic force equilibrium
To stable suspersion.In the axial direction, the axial air-gap magnetic flux between axial stator pole 44,45,46,47 and the upper surface of thrust annulus
Therefore electromagnetic force equilibrium identical, that flywheel rotor 7 is subject in the axial direction realizes the axial stable suspersion of flywheel rotor 7.
The realization of radial two degrees of freedom balance: referring to Figure 13, establishing the coordinate system in tri- directions A, B, C in sagittal plane,
When flywheel rotor 7 is when radial two degrees of freedom is disturbed and deviates to the direction B, to inner radial wall control coil 31 and radial outer wall
Control coil 32 is powered simultaneously, in the magnetic circuit that the direction A and the direction B generate as shown in Figure 13 heavy line and arrow.The present invention
Radial control coil is driven using three-phase inverter.Biasing magnetic flux is generated in tri- directions radial A, B, C, it is middle empty as shown in figure 13
Shown in line and arrow.Dotted line with heavy line direction offset by identical expression magnetic flux superposition, contrary expression magnetic flux.So into one
Step is superimposed referring to Figure 14, negative direction of the resultant flux in B, both synthesis magnetic pull is generated in the negative direction of B, so that flywheel rotor 7
Return to radial equilibrium position.The working principle that the direction A and C shifts is similar to the above.
It reverses the Balancing relization of two degrees of freedom: referring to Figure 13, downward torsion occurring in the direction B when flywheel rotor is disturbed
When turning offset, the axial air-gap in the direction B becomes larger, and the axial air-gap of B negative direction becomes smaller.It is powered to twist coil, so that the direction B
Magnetic flux superposition enhancing, the magnetic flux of B negative direction, which is offset, to be reduced, make flywheel rotor in the direction B by upward magnetic pull in B negative direction
By downward magnetic pull, so that the axial air-gap in the direction B reduces, the axial air-gap of B opposite direction increases, final flywheel rotor 7
Return to equilbrium position.
The realization of the balance of axial single-degree-of-freedom: referring to Figure 15, when rotor 7 be disturbed in axial single-degree-of-freedom it is downward
When offset, axial air-gap increases, and leads to direct current to axial inner loop control coil 51 and axial outer loop control coil 52, axial to control
The magnetic circuit that line generates is as shown in Figure 15 heavy line and arrow.Wherein dotted line and arrow indicate the direction of biasing magnetic flux, heavy line and
Arrow indicates axial to the direction of control magnetic flux, dotted line identical expression magnetic flux superposition, contrary expression magnetic with heavy line direction
It is logical to offset.It can be seen that increasing in axial total magnetic flux, upward synthesis magnetic pull is generated on flywheel rotor 7, makes axial gas
Gap reduces, and final flywheel rotor 7 returns to longitudinal balance position.
According to the above, the present invention can be realized.To those skilled in the art without departing substantially from spirit of the invention
Other changes and modifications with making in the case where protection scope, are included within the scope of the present invention.
Claims (8)
1. a kind of five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device, most external is one closed
Outer shell cavity, coaxial heart arrangement five degree of freedom magnetic bearing, flywheel rotor (7) and external rotor electric machine from top to bottom in outer shell cavity, five
Freedom degree magnetic bearing includes radial stator (2) and axial stator (4), it is characterized in that: the middle section of the flywheel rotor (7) is main
It is outer toroid (74) and inner disk (73), the following table of main disk body (72) that disc (72), upper section, which are sphere ring (71), lower section,
Face edge is fixedly connected with downwards the identical outer toroid of outer diameter (74), and the lower surface middle of main disk body (72) is fixedly connected interior
Disk (73), the internal diameter of outer toroid (74) are greater than the outer diameter of inner disk (73), are formed between inner disk (73) and outer toroid (74)
Toroidal cavity is the external rotor electric machine in the toroidal cavity；The upper surface middle of main disk body (72) is fixed to be connected
A sphere ring (71) is connect, the outer diameter of sphere ring (71) is greater than the outer diameter of inner disk (73), internal diameter is less than inner disk (73)
Outer diameter；It is inwardly projecting spherical surface that the annulus outer wall of sphere ring (71), which is the spherical surface outwardly protruded, inner wall,；The radial direction
Stator (2) is topmost the upper end annulus (21) of torus, and upper end annulus (21) lateral wall extends downwardly the identical diameter of 3 sizes
To outer ring stator yoke, upper end annulus (21) inner sidewall extends downwardly the identical radially inner ring stator yoke (28) of 3 sizes, described
An annular groove is formed between radially outer ring stator yoke and radially inner ring stator yoke (28)；Each radially outer ring stator yoke lower end
Inner sidewall extend internally a radially outer ring stator poles, the inner sidewall of each radially outer ring stator poles is concave spherical surface, 3 radial directions
A spherical groove is formed between the inner sidewall of outer ring stator poles；The lateral wall of each radially inner ring stator yoke (28) lower end is outside
Extend an inner ring stator poles (29), the lateral wall of each inner ring stator poles (29) is concave spherical surface, 3 inner ring stator poles (29)
A spherical groove is formed between lateral wall；The sphere ring (71) covers outside in 3 inner ring stator poles (29) and 3 diameters
Between ring stator poles, 3 radially outer ring stator poles formed spherical groove with a gap concentric set sphere ring (71) outside,
Concentric set is interior in sphere ring (71) with a gap for the spherical groove formed between 3 inner ring stator poles (29)；The diameter
Radial outer wall control coil (32) is wound in outer ring stator yoke, radially inner ring stator yoke is wound with inner radial wall control line on (28)
It encloses (31)；Place the inner ring permanent magnet (61) and outer ring permanent magnetism of inner circle ring body in top in annular groove on radial stator (2)
Axial stator (4) are placed in body (62), lower section, and inner ring permanent magnet (61) and outer ring permanent magnet (62) magnetizing direction are axially downwardly
It magnetizes.
2. five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device according to claim 1,
Be characterized in: the upper layer of the axial stator (4) by axial inner ring stator yoke (41), axial outer ring stator yoke (43) and 3 turn round
Turn pole composition, axial inner ring stator yoke (41) and axial outer ring stator yoke (43) are torus, axial inner ring stator yoke (41)
Outer wall and axial outer ring stator yoke (43) inner wall between be fixedly connected with 3 identical torsions being distributed uniformly and circumferentially
Pole is reversed on extremely and is wound with torsion control coil (53)；The lower surface of inner ring stator yoke (41) radially connects first from inside to outside
The lower surface of axial stator pole (44) and the second axial stator pole (45), outer ring stator yoke (43) radially connects third from inside to outside
Axial stator pole (46) and the 4th axial stator pole (47), between first axis stator poles (44) and the second axial stator pole (45)
Axial default pilot trench is formed, is placed with axial inner loop control coil (51), third axial stator pole (46) in axial default pilot trench
And the 4th form axial external stator slot between axial stator pole 47, is placed with axial outer loop control coil in axial external stator slot
(52)。
3. five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device according to claim 2,
Be characterized in: the upper surface of inner ring permanent magnet (61) and outer ring permanent magnet (62) is fixedly attached to the lower surface of radial stator (2), axis
The lower surface of inner ring permanent magnet (61) and outer ring permanent magnet (62) is fixedly connected with to the upper surface of stator (4), axial stator (4)
Internal diameter is equal to the internal diameter of inner ring permanent magnet (61), and the outer diameter of the second axial stator pole (45) is equal to the outer of inner ring permanent magnet (61)
Diameter, the internal diameter of third axial stator pole (46) are equal to the internal diameter of outer ring permanent magnet (62), and the outer diameter of axial stator (4) is equal to outer ring
The outer diameter of permanent magnet (62).
4. five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device according to claim 2,
Be characterized in: the internal diameter of the radially outer ring stator yoke of radial stator (2) be greater than axial stator (4) outer diameter, axial stator (4) it is interior
Diameter is greater than the outer diameter of radially inner ring stator yoke (28), the lower end surface of radially outer ring stator poles and the lower end surface of radially outer ring stator yoke
It flushes.
5. five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device according to claim 2,
Be characterized in: there are air gap, sphere rings between the upper surface of the sphere ring (71) and the lower surface of axial stator (4)
(71) upper surface is flushed with the upper surface of the upper surface of radially inner ring stator poles (29) and radially outer ring stator poles (27), ball
The internal diameter of face annulus (71) is less than the internal diameter of axial stator (4), and the outer diameter of sphere ring (71) is greater than the outer of axial stator (4)
Diameter.
6. five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device according to claim 2,
Be characterized in: the upper and lower end face of inner ring stator yoke (41), outer ring stator yoke (43) and 3 torsion poles flushes, first axis stator
Pole (44), the second axial stator pole (45), the lower end surface of third axial stator pole (46) and the 4th axial stator pole (47) are neat
Flat, the internal diameter of first axis stator poles (44) is identical with the internal diameter of axial inner ring stator yoke (41), the second axial stator pole (45)
Outer diameter it is identical with the outer diameter of axial inner ring stator yoke (41), the internal diameter of third axial stator pole (46) and axial outer ring stator yoke
(43) internal diameter is identical, and the outer diameter of the 4th axial stator pole (47) is identical with the outer diameter of axial outer ring stator yoke (43).
7. five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device according to claim 1,
Be characterized in: external rotor electric machine includes motor stator (81), electrical-coil (82) and motor permanent magnet (83), and motor permanent magnet 83 is same
Axle sleeve motor stator (81) outside, the inner wall of the outer toroid (74) of the outer wall and flywheel rotor (7) of motor permanent magnet (83) is fixed
Connection, the lower end surface of motor permanent magnet (83) flushes with the lower end surface of outer toroid (74), the upper surface of motor permanent magnet (83) and
There are gaps between the lower end surface of main disk body (72).
8. five degree of freedom unilateral side suspension bearing formula dribbling flywheel integrated vehicle energy storage device according to claim 1,
Be characterized in: the outer shell cavity is surrounded by outer body (12), upper end cover (11) and lower cover (13), and outer body (12) is by one
Portion's annulus (121), a middle part annulus (122) and a lower part annulus (123) are sequentially connected composition, annulus (122) at middle part
Upper surface and top annulus (121) lateral surface between be distributed uniformly and circumferentially the first cooling fin, upper end cover (11)
Upper surface, upper end cover (13) lower end surface on be distributed uniformly and circumferentially square radiating plate respectively.
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| CN201910321690.3A CN110112860B (en) | 2019-04-22 | 2019-04-22 | Five-freedom-degree single-side suspension supporting type disc ball flywheel integrated vehicle-mounted energy storage device |
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| CN110112860B CN110112860B (en) | 2020-11-03 |
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