CN209200844U - A kind of bimorph transducer smooth core axial magnetic field permanent magnet motor and flywheel integrated device - Google Patents
A kind of bimorph transducer smooth core axial magnetic field permanent magnet motor and flywheel integrated device Download PDFInfo
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- CN209200844U CN209200844U CN201821709546.4U CN201821709546U CN209200844U CN 209200844 U CN209200844 U CN 209200844U CN 201821709546 U CN201821709546 U CN 201821709546U CN 209200844 U CN209200844 U CN 209200844U
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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
Abstract
The utility model discloses a kind of bimorph transducer smooth core axial magnetic field permanent magnet motors and flywheel integrated device, using center roller both sides stator structure, are rotor part on the inside of center roller, are made of the permanent magnet array with bilateral poly- magnetic energy power;It is flywheel section on the outside of center roller, is made of high-strength material, quality and inertia is big, and outer rim is reinforced using carbon fibre material.Stationary part eliminates conventional tooth slotted core profile shape, only leaves the back yoke part with magnetic conduction ability, and stator winding is filled using high-performance casting glue, is tightly bonded as one with back yoke.The vertical installation of motor uses two conical surface passive magnetic bearings up and down, it can be achieved that Contactless suspension rotor, realizes vacuum operation.The utility model has many advantages, such as that light-weight, core loss is low, slotless torque, inductance is small, dynamic property is good, high-efficient, low from dissipative shock wave, overload capacity is strong and self adaptable suspension air gap.
Description
Technical field
The utility model relates to design of electrical motor field more particularly to a kind of bimorph transducer smooth core axial magnetic field permanent magnet motors
With flywheel integrated device.
Background technique
With the development of world economy, distributed generation system has been increasingly becoming the pith of electric system.However
Compared with traditional bulk power grid, distributed power generation power supply distance does not have compared with short, system coupling is strong, inertia coeffeicent is small, underdamping
The strong Ability of Resisting Disturbance of standby bulk power grid.Simultaneously because the power of electrical equipment is increasing at present, got over to the test of power grid bring
Come it is more, including high power load incision power grid when cause voltage ripple of power network;The power electronic equipments such as frequency converter draw to power grid
Enter harmonic wave interference, sensitive loads are impacted;The periodical use of impact load needs power grid high-power power supply in short-term.And
The optimal selection for coping with these challenges at present is to increase energy storage device in systems, can not only solve the randomness due to the energy
With caused by fluctuation instantaneously shutdown, voltage swells, voltage dip the problems such as, and can provide quick power buffering, carry out
Idle and active compensation.Therefore, research depth of discharge is controllable, the speed of response is fast, high security, high reliability, high environment
Adaptability and energy-storage system high-efficient, that specific energy density is high, to improvement distributed power grid quality important in inhibiting.
Energy storage mode can be divided at present: physics energy storage, electrochemical energy storage and Power Flow.Physics energy storage, that is, mechanical energy storage
It include: elastic energy storage, hydraulic accumulation energy, energy storage of drawing water, compressed-air energy storage, flywheel energy storage etc..Electrochemical energy storage includes: plumbic acid electricity
Pond, nickel system battery, lithium system battery, flow battery, sodium-sulphur battery etc..Power Flow includes: superconducting magnetic energy storage system, super capacitor
Deng.The technical characteristic of several main energy storage modes is as shown in Tables 1 and 2, these energy storage modes have application in each occasion, related
Technology also all in development among, it is each has something to recommend him.Various energy storage are comprehensively compared, flywheel energy storage system has fast response time, fills
The features such as discharge time is short, long service life, energy storage density is high, it is most suitable to be applied to distributed power grid occasion power quality tune
Section.Therefore, more and more countries put into sight in the research of flywheel energy storage system, also include grinding for China among these
Study carefully personnel.
The various main energy storage mode dynamic response characteristics of table 1
The various main energy storage mode economic performance parameters of table 2
Typical flywheel energy storage system is by flywheel rotor, bearing, dynamoelectric machine, converters and vacuum chamber 5
A primary clustering is constituted, and common flywheel rotor is using high strength composite flywheel rotor, and motor is using Permanent Magnet and Electric
Machine, using magnetic bearing system, system is in sealing vacuum (-tight) housing bearing arrangement, and the electric machine structure is simple, efficiency and power
Density is high, and accessible revolving speed is also very high, and the alternating magnetic field frequency in motor is very high, commonly reaches several hundred or even thousand hertz,
Under so high frequency, the specific energy losses of motor charge and discharge and hold mode it is relatively high from dissipative shock wave, and use it is fixed
Sub- non iron-core motor then can substantially reduce motor iron loss, improve electric efficiency, improve flywheel energy storage system performance.In addition, traditional
The radial magnetic field motor of flywheel energy storage system it is axially longer, therefore the shafting stability of motor is poor, and motor in axial magnetic field
Axial length it is then shorter, the stability of high speed operation of motor shafting is preferable, and the disk type electric motor rotor and flywheel of axial magnetic field structure
Rotor periphery can use different materials, be assembled.Axial magnetic field permanent magnet electric machine structure multiplicity, according to rotor number and
Relative position can be divided into four classes: single stator, rotor structures, double-sided stator center roller structure, double-sided rotor intermediate stator structure,
And more stator, rotor structures.Wherein, there are unilateral magnetic forces for single stator and rotor axial arrangement, and rotor is outstanding after being designed to fly-wheel motor
Trim sets not easy-regulating;And the stator winding of double-sided rotor intermediate stator non iron-core motor removes magnetic conductive iron among motor
Stator winding is fixed and is radiated more intractable afterwards;More stator, rotor structures are then relative complex;Therefore, center roller both sides stator without
Iron core motor in axial magnetic field is made fly-wheel motor, and it is integrated with composite flywheel after, to improving flywheel energy storage system performance
There is vital effect.
Utility model content
Technical problem to be solved in the utility model is provided a kind of double for defect involved in background technique
Stator smooth core axial magnetic field permanent magnet motor and flywheel integrated device, effectively increase fly-wheel motor energy-storage system charge and discharge
The journey energy conversion efficiency and motor for reducing hold mode is from dissipative shock wave, improves the axial stability of conventional flywheel energy-storage system
The problems such as difficult is controlled with suspension system.
The utility model uses following technical scheme to solve above-mentioned technical problem:
A kind of stator smooth core axial magnetic field permanent magnet motor and flywheel integrated apparatus include vacuum (-tight) housing, the first magnetic axis
It holds, the second magnetic bearing, shaft, rotor module, the first stator modules, the second stator modules and flywheel;
The both ends of the shaft pass through the first magnetic bearing respectively, the second magnetic bearing is fixed in the vacuum (-tight) housing;
The flywheel is annular in shape;
The rotor module includes several magnetization units, and described equal one end of magnetization unit and the shaft be connected, the other end
It is connected with the inner wall of the flywheel, and glue connection between adjacent magnetization unit, pieces together circular rotor module;
The magnetization unit includes first to fourth permanent magnet and magnetic conduction rotor made of steel axis, wherein the magnetic conduction steel
Armature spindle is in cuboid, and one end and the shaft be connected, the inner wall of the other end and the flywheel is connected;Described first to fourth forever
Magnet is successively set on four faces of the magnetic conduction rotor made of steel axis, and glue connection, and adjacent permanent magnet are bonded between adjacent permanent magnet
Magnetic pole of the body far from magnetic conduction rotor made of steel axis one end is opposite;
Magnetic pole and adjacent magnetization of first to fourth permanent magnet far from magnetic conduction rotor made of steel axis one end in the magnetization unit
Magnetic pole of first to fourth permanent magnet far from magnetic conduction rotor made of steel axis one end is opposite in unit;
The two sides of the rotor module are arranged in first stator modules, the second stator modules, include stator winding
With magnetic conduction back yoke, wherein the stator winding, magnetic conduction back yoke are annular in shape, and magnetic conduction back yoke is fixed on the interior of the vacuum (-tight) housing
On wall, stator winding is arranged between magnetic conduction back yoke and rotor module, glue connection is in the magnetic conduction back yoke;
First magnetic bearing, shaft, rotor module, the first stator modules, the second stator modules, flies at the second magnetic bearing
Wheel is arranged in vacuum (-tight) housing, and every lead of stator winding stretches out vacuum in first stator modules, the second stator modules
Cover is communicated with the outside.
It is further as a kind of stator smooth core axial magnetic field permanent magnet motor of the utility model and flywheel integrated apparatus
Prioritization scheme, the flywheel use steel flywheel, quality is big, centrifugal force is big, and flywheel outer rim be equipped with layer of carbon fiber material.
It is further as a kind of stator smooth core axial magnetic field permanent magnet motor of the utility model and flywheel integrated apparatus
Prioritization scheme, first magnetic bearing, the second magnetic bearing include outer ring and inner ring, and the outer ring is fixed on the vacuum (-tight) housing
On, the inner ring and outer ring cone match, and it is opposite, mutual that magnetizing direction is respectively equipped on the conical surface of inner ring and the conical surface of outer ring
The annular permanent magnets of repulsion.
It is further as a kind of stator smooth core axial magnetic field permanent magnet motor of the utility model and flywheel integrated apparatus
Prioritization scheme, stator winding is using using encapsulating after mold coiling molding in first stator modules, the second stator modules
Glue is filled, and is then sticked to one by bonded adhesives and magnetic conduction back yoke.
It is further as a kind of stator smooth core axial magnetic field permanent magnet motor of the utility model and flywheel integrated apparatus
Prioritization scheme, the identical corresponding parallel connection of stator winding in first stator modules, the second stator modules.
It is further as a kind of stator smooth core axial magnetic field permanent magnet motor of the utility model and flywheel integrated apparatus
Prioritization scheme, also comprising the non-magnetic frame for fixing each magnetization unit in the rotor module.
The utility model compared with the prior art by using the above technical solution, has following technical effect that
1) the disc type annular flywheel inertia of, equal quality, major diameter is bigger;Using axial magnetic field bimorph transducer, rotor
With flywheel organic integration, power density is big;
2), the rotor magnetic circuit structural of poly- magnetic symmetrical above and below, direction of magnetization size is big, allows under using big air gap, air gap
Flux density reaches the air gap flux density size of conventional motor;
3), rotor module outer ring is conveniently aided with fibre reinforced by high-intensitive big mass flywheel, wheel rim fastening, obtain compared with
High intensity obtains high linear speed, effectively improves energy storage density;
4) armature winding, is arranged to constitute slotless winding in big air gap, slotless detent force reduces loss;Winding reactance is small,
Motor dynamics performance is good, and high current work drive motor magnetic circuit is not easy to be saturated, and overload magnification is high;
5), the vertical installation of motor realizes Contactless suspension rotor using the passive Permanent Magnet Bearings of upper and lower two conical surfaces, real
Existing vacuum operation greatly reduces flywheel cost compared to active magnetic bearing is used;
6), axial bimorph transducer symmetrical structure, the operation of bimorph transducer winding parallel, when motor is there are when air gap deviation, air gap magnetic
It is close to deviate, cause winding induced potential amplitude to differ, idle euqalizing current, the small side of air gap are generated in winding loop
For degaussing, air gap is to increase magnetic to have the gas that suspends between adjust automatically rotor and stator to influence the size of normal direction electromagnetic force greatly
The ability of gap;
7), stator only uses the yoke portion iron core that thin silicon steel band rolls, and iron core dosage is few, and iron loss is small, fly-wheel motor consumable
The rate of dissipating is few, and operational efficiency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the radial structure schematic diagram of adjacent magnetization unit in the utility model;
Fig. 3 is the three-dimensional magnetic circuit schematic diagram of the utility model;
Fig. 4 is the structure and magnetic circuit schematic diagram of the first magnetic bearing in the utility model;
Fig. 5 (a) is center roller double-sided stator axial magnetic field permanent magnet machine winding parallel running circuit diagram;
Fig. 5 (b) is center roller double-sided stator axial magnetic field permanent magnet machine winding parallel connection euqalizing current schematic diagram;
Fig. 5 (c) is center roller double-sided stator axial magnetic field permanent magnet machine winding parallel connection euqalizing current polar plot.
In figure, the first magnetic bearing of 1-, the second magnetic bearing of 2-, 3- shaft, 4- rotor module, 5- flywheel, 6- stator winding, 7-
Magnetic conduction back yoke, 8- layer of carbon fiber material, 9- vacuum (-tight) housing, 10- magnetic conduction rotor made of steel axis, the first permanent magnet of 11-, the second permanent magnetism of 12-
Body, 13- third permanent magnet, the 4th permanent magnet of 14-, the non-magnetic frame of 15-, 16- inner ring, the outer ring 17-.
Specific embodiment
The technical solution of the utility model is described in further detail with reference to the accompanying drawing:
The utility model can be embodied in many different forms, and should not be assumed that be limited to the embodiments described herein.
On the contrary, it is thorough and complete to these embodiments are provided so that the disclosure, and this reality will be given full expression to those skilled in the art
With novel range.In the accompanying drawings, for the sake of clarity it is exaggerated component.
As shown in Figure 1, the utility model discloses a kind of stator smooth core axial magnetic field permanent magnet motors and flywheel one
Makeup is set, and includes vacuum (-tight) housing, the first magnetic bearing, the second magnetic bearing, shaft, rotor module, the first stator modules, the second stator mould
Block and flywheel.
The both ends of shaft pass through the first magnetic bearing respectively, the second magnetic bearing is fixed in vacuum (-tight) housing;Flywheel is annular in shape;Turn
Submodule includes several magnetization units, and the equal one end of magnetization unit and shaft be connected, the inner wall of the other end and flywheel is connected, and adjacent
Glue connection between magnetization unit pieces together circular rotor module.
As shown in Fig. 2, magnetization unit includes first to fourth permanent magnet and magnetic conduction rotor made of steel axis, wherein magnetic conduction steel
Armature spindle processed is in cuboid, and one end and shaft be connected, the inner wall of the other end and flywheel is connected;First to fourth permanent magnet is successively set
It sets on four faces of magnetic conduction rotor made of steel axis, glue connection is bonded between adjacent permanent magnet, and adjacent permanent magnet is far from magnetic conduction steel
The magnetic pole of armature spindle one end is opposite.
Magnetic pole and adjacent magnetization unit of first to fourth permanent magnet far from magnetic conduction rotor made of steel axis one end in magnetization unit
In magnetic pole of first to fourth permanent magnet far from magnetic conduction rotor made of steel axis one end it is opposite.The fixed each magnetization of non-magnetic frame is single
Member, so that the structure of rotor module is more stable.
The two sides of rotor module are arranged in first stator modules, the second stator modules, carry on the back comprising stator winding and magnetic conduction
Yoke, wherein stator winding, magnetic conduction back yoke are annular in shape, and magnetic conduction back yoke is fixed on the inner wall of vacuum (-tight) housing, stator winding setting
Between magnetic conduction back yoke and rotor module, glue connection is in magnetic conduction back yoke.
First magnetic bearing, the second magnetic bearing, shaft, rotor module, the first stator modules, the second stator modules, flywheel are equal
It is arranged in vacuum (-tight) housing, every lead of stator winding stretches out vacuum (-tight) housing and outside in the first stator modules, the second stator modules
It is connected.
Flywheel uses steel flywheel, and quality is big, centrifugal force is big, and entire flywheel outer rim uses carbon fiber reinforcement.
First stator modules, the second stator modules are smooth core structure, and only there are magnetic conduction back yoke, the present embodiment
In, stator winding and stator back yoke are put in place using mold later, are filled out using casting glue by the prior coiling molding of stator winding
Winding is filled, after glue heating is cooling, winding and back yoke constitute firm, wear-resisting, resistance to compression stator disc.
According to the present embodiment, the three-dimensional magnetic circuit of the utility model is as shown in Figure 3.Magnetic flux is generated by rotor module, respectively
The first stator modules, the second stator modules area radiation to both sides, by rotor module and the first stator modules, the second stator
Again pass by stator winding after the air gap of intermodule, stator winding, magnetic conduction back yoke, air gap is then return to rotor permanent magnet, and pass through
Cross intermediate magnetic conductive axis forming circuit.The magnetic structure can pass through multiple permanent magnet blocks, and magnetic path is long, to both sides stator winding area
Domain all has magnet accumulating cap.
In the present embodiment, rotor permanent magnet uses magnetism-collected structure, and practical air gap is that rotor permanent magnet is carried on the back to magnetic conduction
The distance between yoke, practical air gap distance determine in the case where, the distance of rotor permanent magnet to coil can choose it is larger, i.e.,
Suspension air gap is larger.
In the present embodiment, the vertical installation of motor, the first magnetic bearing, the second magnetic bearing are supported using conical surface passive magnetic bearing
Rotor, the magnetic bearing section and magnetic circuit half figure as shown in figure 4, mainly include two parts in outer ring and inner ring, it is interior
Circle and outer ring cone match, and it is respectively equipped with that magnetizing direction is opposite, mutually exclusive ring on the conical surface of inner ring and the conical surface of outer ring
Shape permanent magnet equivalent can provide axially and radially support force, and it is possible to by adjusting the tilt angle and magnet steel of opposing tapered surfaces
The size of thickness adjustment support force.Meanwhile the bearing is upper and lower axis form, motor shaft can be on or below to installation.
In the present embodiment, the identical phase winding of double winding is in parallel above and below motor, and motor suspension air gap is larger, has outstanding
Floating air gap self-regulating function.As Fig. 5 (a) be two sets of stator parallel running circuit diagrams (by taking three-phase motor as an example) of motor, two sets around
The identical of group is in parallel on the same bridge arm of controller, and circuit, voltage difference are induced potential to double winding each other at this time
Difference, i.e.,(wherein 1 indicating upper layer winding, 2 indicate lower layer's winding), when both sides air gap is equal, the voltage difference
Value is 0, and double winding electric current is equal;And when suspension air gap changes, if rotor-position is on the lower side, then the induction of upper layer winding
Potential is small, and the induced potential of lower layer's winding is big, will generate loop current(referred to as balanced reactive current), such as Fig. 5 (b), under
Layer winding flows to upper layer winding, so that upper layer winding current be caused to become larger, lower layer's winding current reduces, polar plot 5 (c) institute
Show, which plays increasing magnetic action to upper layer winding, demagnetizing effect is played to lower layer's winding, therefore between upper layer winding and rotor
Normal force increases, and the normal force between lower layer's winding and rotor reduces, and rotor will be automatically moved up.
Those skilled in the art can understand that unless otherwise defined, all terms used herein (including skill
Art term and scientific term) there is meaning identical with the general understanding of those of ordinary skill in the utility model fields
Justice.It should also be understood that those terms such as defined in the general dictionary should be understood that with upper with the prior art
The consistent meaning of meaning hereinafter, and unless defined as here, will not with idealization or meaning too formal come
It explains.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of bimorph transducer smooth core axial magnetic field permanent magnet motor and flywheel integrated device, which is characterized in that comprising vacuum (-tight) housing,
First magnetic bearing, the second magnetic bearing, shaft, rotor module, the first stator modules, the second stator modules and flywheel;
The both ends of the shaft pass through the first magnetic bearing respectively, the second magnetic bearing is fixed in the vacuum (-tight) housing;
The flywheel is annular in shape;
The rotor module includes several magnetization units, and described equal one end of magnetization unit and the shaft be connected, the other end and institute
The inner wall for stating flywheel is connected, and glue connection between adjacent magnetization unit, pieces together circular rotor module;
The magnetization unit includes first to fourth permanent magnet and magnetic conduction rotor made of steel axis, wherein the magnetic conduction rotor made of steel
Axis is in cuboid, and one end and the shaft be connected, the inner wall of the other end and the flywheel is connected;First to fourth permanent magnet
It is successively set on four faces of the magnetic conduction rotor made of steel axis, glue connection is bonded between adjacent permanent magnet, and adjacent permanent magnet is remote
Magnetic pole from magnetic conduction rotor made of steel axis one end is opposite;
Magnetic pole and adjacent magnetization unit of first to fourth permanent magnet far from magnetic conduction rotor made of steel axis one end in the magnetization unit
In magnetic pole of first to fourth permanent magnet far from magnetic conduction rotor made of steel axis one end it is opposite;
The two sides of the rotor module are arranged in first stator modules, the second stator modules, comprising stator winding and leading
Magnetic back yoke, wherein the stator winding, magnetic conduction back yoke are annular in shape, and magnetic conduction back yoke is fixed on the inner wall of the vacuum (-tight) housing,
Stator winding is arranged between magnetic conduction back yoke and rotor module, glue connection is in the magnetic conduction back yoke;
First magnetic bearing, the second magnetic bearing, shaft, rotor module, the first stator modules, the second stator modules, flywheel are equal
Be arranged in vacuum (-tight) housing, in first stator modules, the second stator modules stator winding every lead stretch out vacuum (-tight) housing and
Outside is connected.
2. bimorph transducer smooth core axial magnetic field permanent magnet motor according to claim 1 and flywheel integrated device, feature
It is, the flywheel uses steel flywheel, and quality is big, centrifugal force is big, and flywheel outer rim is equipped with layer of carbon fiber material.
3. bimorph transducer smooth core axial magnetic field permanent magnet motor according to claim 1 and flywheel integrated device, feature
It is, first magnetic bearing, the second magnetic bearing include outer ring and inner ring, and the outer ring is fixed on the vacuum (-tight) housing, institute
Inner ring and outer ring cone match is stated, and it is opposite, mutually exclusive that magnetizing direction is respectively equipped on the conical surface of inner ring and the conical surface of outer ring
Annular permanent magnets.
4. bimorph transducer smooth core axial magnetic field permanent magnet motor according to claim 1 and flywheel integrated device, feature
It is, stator winding is carried out using after mold coiling molding using casting glue in first stator modules, the second stator modules
Filling, is then sticked to one by bonded adhesives and magnetic conduction back yoke.
5. bimorph transducer smooth core axial magnetic field permanent magnet motor according to claim 1 and flywheel integrated device, feature
It is, the identical corresponding parallel connection of stator winding in first stator modules, the second stator modules.
6. bimorph transducer smooth core axial magnetic field permanent magnet motor according to claim 1 and flywheel integrated device, feature
It is, also comprising the non-magnetic frame for fixing each magnetization unit in the rotor module.
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CN201821709546.4U CN209200844U (en) | 2018-10-22 | 2018-10-22 | A kind of bimorph transducer smooth core axial magnetic field permanent magnet motor and flywheel integrated device |
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CN201821709546.4U CN209200844U (en) | 2018-10-22 | 2018-10-22 | A kind of bimorph transducer smooth core axial magnetic field permanent magnet motor and flywheel integrated device |
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CN201821709546.4U Withdrawn - After Issue CN209200844U (en) | 2018-10-22 | 2018-10-22 | A kind of bimorph transducer smooth core axial magnetic field permanent magnet motor and flywheel integrated device |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109301982A (en) * | 2018-10-22 | 2019-02-01 | 南京航空航天大学 | A kind of bimorph transducer smooth core axial magnetic field permanent magnet motor and flywheel integrated device |
CN114069949A (en) * | 2022-01-18 | 2022-02-18 | 华驰动能(北京)科技有限公司 | Energy storage flywheel and energy storage equipment with same |
CN114751326A (en) * | 2022-03-31 | 2022-07-15 | 浙江阜康机械有限公司 | Permanent magnet electric capstan |
-
2018
- 2018-10-22 CN CN201821709546.4U patent/CN209200844U/en not_active Withdrawn - After Issue
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109301982A (en) * | 2018-10-22 | 2019-02-01 | 南京航空航天大学 | A kind of bimorph transducer smooth core axial magnetic field permanent magnet motor and flywheel integrated device |
CN109301982B (en) * | 2018-10-22 | 2024-02-13 | 南京航空航天大学 | Double-stator slotless core axial magnetic field permanent magnet motor and flywheel integrated device |
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