CN202353412U - Magnetic suspension energy storage flywheel motor, generator, electromotor and wind driven generator - Google Patents
Magnetic suspension energy storage flywheel motor, generator, electromotor and wind driven generator Download PDFInfo
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- CN202353412U CN202353412U CN2011204905508U CN201120490550U CN202353412U CN 202353412 U CN202353412 U CN 202353412U CN 2011204905508 U CN2011204905508 U CN 2011204905508U CN 201120490550 U CN201120490550 U CN 201120490550U CN 202353412 U CN202353412 U CN 202353412U
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Abstract
The utility model relates to a magnetic suspension energy storage flywheel motor, a generator, an electromotor and a wind driven generator, wherein the magnetic suspension energy storage flywheel motor comprises a central shaft, a stator fixed on the central shaft and a flywheel rotor which can be rotatably supported to the central shaft through a rotary shaft; the rotary shaft comprises an axial magnetic suspension bearing and a radial ball bearing which are matched with the central shaft in a precision mode; an outer ring of the ball bearing is elastically matched with a shafting of the rotary shaft through an elastic sleeve ring so as to form elastic support; the axial magnetic suspension bearing can support the flywheel rotor axially, and can counteract the self-weight of the flywheel rotor, and the efficiency of the motor is improved; and meanwhile, the outer ring of the ball bearing is elastically matched with the shafting of the rotary shaft through the elastic sleeve ring so as to form the elastic support, thus the magnetic suspension electromotor rotates stably in a balanced mode, and meanwhile, the radial ball bearing is elastically matched with the shafting of the rotary shaft, thus abrasion resulted from large pressure borne by the ball bearing can not be caused, the service life of the flywheel motor is prolonged, at the same time, the implementation mode of the elastic sleeve ring is simple, and the cost is low.
Description
Technical field
The utility model relates to magnetic suspension motor, more particularly, relates to a kind of magnetic levitation energy storage flywheel motor, generator, motor and wind-driven generator.
Background technology
Flywheel energy storage system is a kind of novel energy converting between mechanical and storage device; Advantage such as have that long service life, conversion efficiency are high, adaptability is strong and pollution-free has a wide range of applications in fields such as Aero-Space, distributed power generation, power peak regulation, wind generator system and electric automobiles.
Tradition accumulated energy flywheel motor adopts high-speed permanent magnet motor, for the various losses that reduce to produce at a high speed, adopts the distributed winding magneto, and the winding overhang of distributed winding magneto is very big, and copper loss is bigger.And traditional accumulated energy flywheel motor adopts mechanical bearing, and the mechanical loss that the flywheel high-speed cruising produces is bigger, and influences the useful life of accumulated energy flywheel motor.Existing high-performance accumulated energy flywheel motor adopts Active Magnetic Suspending Bearing, though its mechanical loss is very little, its price is very high, and ratio of rigidity is lower, has hindered its practical application.
The utility model content
The technical problem that the utility model will solve is; To the above-mentioned defective of prior art, a kind of magnetic levitation energy storage flywheel motor, generator, motor and wind-driven generator are provided, it can make the rotation of magnetic levitation energy storage flywheel motor balance and stability; Better mechanical property; Improved the efficient of fly-wheel motor, prolonged the useful life of fly-wheel motor, cost is lower.
The utility model solves the technical scheme that its technical problem adopted, and a kind of magnetic levitation energy storage flywheel motor is provided, and comprising:
Central shaft;
Stator is fixed in said central shaft;
Flywheel rotor; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit, and said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
According to the magnetic levitation energy storage flywheel motor of the utility model, the stator punching end of said stator is equipped with the switch Hall element that three spaces differ 120 ° of electrical degrees.
According to the magnetic levitation energy storage flywheel motor of the utility model, the section thickness of said elastic collar is 0.5 millimeter to 5 millimeters.
According to the magnetic levitation energy storage flywheel motor of the utility model, said elastic collar forms through the bearing chamber perfusion elastic gum at said gyroaxis.
According to the magnetic levitation energy storage flywheel motor of the utility model, said magnetic levitation energy storage flywheel motor also comprises vacuum envelope, and said vacuum envelope is connected with said central shaft.
According to the magnetic levitation energy storage flywheel motor of the utility model, the magnetic levitation energy storage flywheel motor comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel that are mounted on said flywheel rotor inwall, and each magnetic pole comprises 7 blocks of alternate magnet steel that mount of homopolarity;
Said stator comprises 18 stator slots.
According to the magnetic levitation energy storage flywheel motor of the utility model, the ratio of the notch size of said stator slot and the spacing of adjacent magnet steel is 1.4～1.6.
Magnetic levitation energy storage flywheel motor according to the utility model; The winding mode of three phase windings of said stator is: A phase
B phase
C phase
wherein
expression 1 groove is advanced, and → 6 expressions 6 grooves go out.
According to the magnetic levitation energy storage flywheel motor of the utility model, the internal stator of magnetic suspension bearing and external rotor comprise the annular magnetic steel ring of at least two axial chargings respectively,
The annular magnetic steel ring of said internal stator is identical with the axial height of the annular magnetic steel ring of said external rotor, and internal stator magnet steel circle is positioned at external rotor magnet steel circle inside.
According to the magnetic levitation energy storage flywheel motor of the utility model, be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said internal stator; Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said external rotor.
According to the magnetic levitation energy storage flywheel motor of the utility model, the physics air gap between the annular magnetic strength circle of the annular magnetic steel ring of said internal stator and said external rotor is 0.2 millimeter to 5 millimeters.
Magnetic levitation energy storage flywheel motor according to the utility model; Said internal stator and said external rotor comprise the annular magnetic steel ring of 5 axial chargings respectively; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is NSNSN, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is SNSNS; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is SNSNS, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is NSNSN.
Magnetic levitation energy storage flywheel motor according to the utility model; Said flywheel rotor external diameter is a carbon steel for the flywheel material of
to
flywheel rotor, the rotating speed ± 16000rpm of said flywheel.
Magnetic levitation energy storage flywheel motor according to the utility model; The flywheel material of the said flywheel rotor of said flywheel external diameter
is glass fiber or carbon fiber, the maximum speed of said flywheel is respectively ± 20000rpm or ± 60000rpm.
According to the magnetic levitation energy storage flywheel motor of the utility model, said magnetic levitation energy storage flywheel motor comprises the control system that is used to control its operation, and said control system comprises with motor drive controller and three-phase bridge rectifier,
When said magnetic levitation energy storage flywheel machine operation during in electric motor state, said motor drive controller is controlled said magnetic levitation energy storage flywheel motor and is quickened or the stable speed operation, converts electrical energy into mechanical kinetic energy;
When said magnetic levitation energy storage flywheel machine operation during in the generator state; Said motor drive controller stops to drive said magnetic levitation energy storage flywheel motor; To carry out full-wave rectification and output to the back-emf of said magnetic levitation energy storage flywheel motor by the three-phase bridge rectifier, convert mechanical kinetic energy into electric energy.
The utility model also provides a kind of generator, and said generator comprises:
Central shaft;
Stator is fixed in said central shaft;
Generator amature; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
The utility model also provides a kind of motor, comprising:
Central shaft;
Stator is fixed in said central shaft;
Motor rotor; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
The utility model also provides a kind of wind-driven generator, comprises fan blade and fan blade rotating shaft, and said fan blade rotating shaft is connected with the magnetic suspension generator rotor axial, and said magnetic suspension generator also comprises:
Central shaft;
Stator is fixed in said central shaft;
Generator amature; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
The flywheel rotor of the magnetic levitation energy storage flywheel motor of the utility model is through the rotatable central shaft that is supported in of gyroaxis; Gyroaxis comprises the axial magnetic suspension bearing and the radial ball bearing of coaxial setting; Axial magnetic suspension bearing is the support flying wheel rotor in the axial direction; Can offset the deadweight of flywheel rotor, reach the purpose of axial unloading, improve efficiency of motor; The ball bearing outer ring is a resilient engagement through the axle of elastic collar and gyroaxis simultaneously; Form resiliency supported; Thereby radial deflection does not take place and reduces electric efficiency in the rotating shaft that guarantees flywheel rotor, makes the rotation of magnetic levitation energy storage flywheel motor balance and stability, and the axle of radial ball bearing and gyroaxis is that resilient engagement can make ball bearing not bear big pressure and causes wearing and tearing simultaneously; Has mechanical performance preferably; Prolonged the useful life of fly-wheel motor, the implementation of elastic collar is simple simultaneously, and cost is lower.Whereby, it can make the rotation of magnetic levitation energy storage flywheel motor balance and stability the utility model, and better mechanical property has improved the efficient of fly-wheel motor, has prolonged the useful life of fly-wheel motor, and cost is lower.
Preferably, the utility model adopts concentrates winding, and winding overhang is little, and copper loss reduces 20%, and motor stator notch size and magnetic steel gap Optimum Matching minimize the location torque of motor.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below
Fig. 1 is the structure principle chart of a magnetic levitation energy storage flywheel motor in the utility model preferred embodiment;
Fig. 2 is the structure principle chart that the utility model selects axial magnetic suspension bearing among the embodiment;
Fig. 3 is P=4 among the utility model embodiment, the cross-section structure schematic diagram of S=18 external rotor accumulated energy flywheel motor;
Fig. 4 is the structure principle chart of control system among the utility model embodiment.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, a kind of magnetic levitation energy storage flywheel motor 100 of the utility model comprises: vacuum envelope 7, be connected and fixed on central shaft 8, the stator 9 that is fixed in central shaft 8 and flywheel rotor 10 in the vacuum envelope 7.Magnetic levitation energy storage flywheel motor 100 comprises two operating states; Electric motor state and generator state (also being that it can be used as motor or generator uses); When it worked in the generator state, magnetic levitation energy storage flywheel motor 100 converted the mechanical kinetic energy of flywheel rotor 10 into electric energy output; When it worked in electric motor state, magnetic levitation energy storage flywheel motor 100 converted electrical energy into the mechanical kinetic energy of flywheel rotor 10.
Flywheel rotor 10 is through the gyroaxis 11 rotatable central shafts 8 that are supported in; Gyroaxis 11 comprises axial magnetic suspension bearing 4 and the radial ball bearing 5 with central shaft 8 precision-fit; Ball bearing 5 outer rings are resilient engagement through the axle of elastic collar 6 and gyroaxis 11, form resiliency supported.The section thickness of elastic collar 6 is 0.5 millimeter to 5 millimeters; Because the spacing between the bearing chamber of radial ball bearing 5 and gyroaxis 11 is less; If earlier with the bearing chamber that attaches it to the radial ball bearing 5 and the gyroaxis 11 of packing into after elastic collar 6 moulding again; Will cause difficult installation, therefore preferred employing is directly poured into elastic gum formation elastic collar 6 through the bearing chamber of gyroaxis 11.
Stator punching 12 (stator punching the is seen Fig. 6) end of stator 9 is equipped with the switch Hall element 3 that three spaces differ 120 ° of electrical degrees; The air-gap field that the sensitive direction of switch Hall element 3 forms towards flywheel rotor 10 permanent magnets is with the variation of sensing air-gap field.
Magnetic levitation energy storage flywheel motor 100 also comprises the control system 20 (seeing Fig. 7 for details) that is used to control its running simultaneously; During 100 work of magnetic levitation energy storage flywheel motor, flown to concentrate the winding mode with novel employing by control system 20 driven magnetic levitation energy-storings, winding overhang is little; Copper loss reduces 20%
As depicted in figs. 1 and 2; Magnetic suspension bearing 4 comprises internal stator 41 and external rotor 42; And internal stator 41 and external rotor 42 comprise the annular magnetic steel ring of at least two axial chargings respectively; The annular magnetic steel ring of internal stator 41 is identical with the axial height of the annular magnetic steel ring of external rotor 42, and the annular magnetic steel ring of internal stator 41 is positioned at the annular magnetic steel ring inside of external rotor 42.In the embodiment of utility model; Internal stator 41 and external rotor 42 include 5 annular magnetic steel rings; The polarity ordering of 5 annular magnetic steel ring upper surfaces of internal stator 41 is NSNSN, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of external rotor 42 is SNSNS; Also can be set to, the polarity ordering of 5 annular magnetic steel ring upper surfaces of internal stator 41 is SNSNS, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of external rotor 42 is NSNSN.
Preferably the physics air gap between internal stator 41 and the external rotor 42 43 is 0.2 millimeter to 5 millimeters, and the physics size of gaps is relevant with the size of fly-wheel motor 100.Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin 44 between the annular magnetic steel ring of internal stator 41, be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin 44 between the annular magnetic steel ring of external rotor 42.Because the polarity of the adjacently situated surfaces of two annular magnetic steel rings is identical up and down, two adjacent magnet steel circles generations are up and down repelled, for ease of neighbouring annular magnetic strength circle is linked together, non-magnetic conduction dottle pin 44 is set between neighbouring annular magnetic steel ring.
Preferably; Flywheel rotor 10 external diameters are carbon steel for the material of the flywheel 1 of
to
flywheel rotor 10, the rotating speed ± 16000rpm of flywheel 1.Because the rotating speed of flywheel 1 is too high will be owing to centrifugal force ruptures than ambassador's carbon steel; Therefore if flywheel 1 need reach bigger rotating speed; Need select the rigidity better material for use; Elect glass fiber or carbon fiber as like the material of flywheel 1, the external diameter of flywheel 1
can make the maximum speed of flywheel rotor 10 reach ± 20000rpm or ± 60000rpm.
As shown in Figure 4; The control system 20 of magnetic levitation energy storage flywheel motor 100 comprises: motor drive controller 21, three-phase bridge rectifier 22, electric generator/electric motor 23 and power supply and central controller 24, electric generator/electric motor 23 work in the equivalence replacement structure of different conditions for magnetic levitation energy storage flywheel motor 100.
When magnetic levitation energy storage flywheel motor 100 worked in electric motor state, motor drive controller 21 control magnetic levitation energy storage flywheel motors 100 quickened or the stable speed operation, convert electrical energy into 0.5J Ω
2Mechanical kinetic energy stores; When magnetic levitation energy storage flywheel motor 100 works in the generator state; Motor drive controller 21 stops driven magnetic levitation energy-storing flywheel motor 100; To carry out full-wave rectification and output to the back-emf of magnetic levitation energy storage flywheel motor 100 by three-phase bridge rectifier 22, with 0.5J Ω
2Mechanical kinetic energy converts electric energy into.
The magnetic levitation energy storage flywheel motor 100 of the utility model can be used for fields such as Aero-Space, distributed power generation, power peak regulation, wind generator system and electric automobile, so range of application very extensively.
The utility model also provides a kind of generator, and this generator is a magnetic suspension generator, because the generator of the utility model is consistent with the mechanical structure of the magnetic levitation energy storage flywheel motor 100 of Fig. 1 to Fig. 3, continuous referring to figs. 1 through Fig. 3, generator comprises:
Central shaft;
Stator is fixed in said central shaft;
Generator amature; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
The stator punching end of said stator is equipped with the switch Hall element that three spaces differ 120 degree electrical degrees.
The section thickness of said elastic collar is 0.5 millimeter to 5 millimeters; Said elastic collar forms through the bearing chamber perfusion elastic gum at said gyroaxis.
Said generator also comprises vacuum envelope, and said vacuum envelope is connected with said central shaft.
The magnet steel composition that said generator amature comprises flywheel and is mounted on the flywheel inwall, generator comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel that mount, each magnetic pole comprises 7 blocks of alternate magnet steel that mount of homopolarity; Said stator comprises 18 stator slots.The ratio of the notch size of said stator slot and the spacing of adjacent magnet steel is 1.4～1.6.
The winding mode of three phase windings of said stator is: A phase
B phase
C phase
wherein
expression 1 groove is advanced, and → 6 expressions 6 grooves go out.
Said generator amature external diameter is a carbon steel for the flywheel material of
to
generator amature, the rotating speed ± 16000rpm of said flywheel.The flywheel material of the said flywheel rotor of said flywheel external diameter
is glass fiber or carbon fiber, the maximum speed of said flywheel is respectively ± 20000rpm or ± 60000rpm.
Said magnetic suspension bearing comprises internal stator and external rotor; And said internal stator and external rotor comprise the annular magnetic steel ring of at least two axial chargings respectively; The annular magnetic steel ring of said internal stator is identical with the axial height of the annular magnetic steel ring of said external rotor, and the annular magnetic steel ring of said internal stator is positioned at the annular magnetic steel ring inside of said external rotor.Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said internal stator; Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said external rotor.Physics air gap between the annular magnetic strength circle of the annular magnetic steel ring of said internal stator and said external rotor is 0.2 millimeter to 5 millimeters.
Said internal stator and said external rotor comprise the annular magnetic steel ring of 5 axial chargings respectively; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is NSNSN, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is SNSNS; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is SNSNS, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is NSNSN.
The axial magnetic suspension bearing of the utility model can support generator amature in the axial direction, can offset the deadweight of generator amature, reaches the purpose of axial unloading, has improved efficiency of motor; The ball bearing outer ring is a resilient engagement through the axle of elastic collar and gyroaxis simultaneously; Form resiliency supported; Reduce the generating efficiency of generator thereby the rotating shaft that guarantees generator amature radial deflection does not take place, make the rotation of generator amature balance and stability, the axle of radial ball bearing and gyroaxis is that resilient engagement can make ball bearing not bear big pressure and causes wearing and tearing simultaneously; Has mechanical performance preferably; Prolonged the useful life of generator, the implementation of elastic collar is simple simultaneously, and cost is lower.Whereby, it can make the rotation of generator balance and stability the utility model, and better mechanical property has improved the generating efficiency of generator, has prolonged the useful life of generator, and cost is lower.
The utility model also provides a kind of motor, and this motor is a magnetic levitaion motor, because the motor of the utility model is consistent with the mechanical structure of the magnetic levitation energy storage flywheel motor 100 of Fig. 1 to Fig. 3, continuous referring to figs. 1 through Fig. 3, generator comprises:
Central shaft;
Stator is fixed in said central shaft;
Motor rotor; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
The stator punching end of said stator is equipped with the switch Hall element that three spaces differ 120 degree electrical degrees.
The section thickness of said elastic collar is 0.5 millimeter to 5 millimeters; Said elastic collar forms through the bearing chamber perfusion elastic gum at said gyroaxis.
Said motor also comprises vacuum envelope, and said vacuum envelope is connected with said central shaft.
The magnet steel composition that said motor rotor comprises flywheel and is mounted on the flywheel inwall, motor comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel that mount, each magnetic pole comprises 7 blocks of alternate magnet steel that mount of homopolarity; Said stator comprises 18 stator slots.The ratio of the notch size of said stator slot and the spacing of adjacent magnet steel is 1.4～1.6.
The winding mode of three phase windings of said stator is: A phase
B phase
C phase
wherein
expression 1 groove is advanced, and → 6 expressions 6 grooves go out.
Said motor rotor external diameter is a carbon steel for the flywheel material of
to
motor rotor, the rotating speed ± 16000rpm of said flywheel.The flywheel material of the said flywheel rotor of said flywheel external diameter
is glass fiber or carbon fiber, the maximum speed of said flywheel is respectively ± 20000rpm or ± 60000rpm.
Said magnetic suspension bearing comprises internal stator and external rotor; And said internal stator and external rotor comprise the annular magnetic steel ring of at least two axial chargings respectively; The annular magnetic steel ring of said internal stator is identical with the axial height of the annular magnetic steel ring of said external rotor, and the annular magnetic steel ring of said internal stator is positioned at the annular magnetic steel ring inside of said external rotor.Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said internal stator; Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said external rotor.Physics air gap between the annular magnetic strength circle of the annular magnetic steel ring of said internal stator and said external rotor is 0.2 millimeter to 5 millimeters.
Said internal stator and said external rotor comprise the annular magnetic steel ring of 5 axial chargings respectively; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is NSNSN, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is SNSNS; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is SNSNS, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is NSNSN.
The axial magnetic suspension bearing of the utility model can support motor rotor in the axial direction, can offset the deadweight of motor rotor, reaches the purpose of axial unloading, has improved efficiency of motor; The ball bearing outer ring is a resilient engagement through the axle of elastic collar and gyroaxis simultaneously; Form resiliency supported; Reduce the efficient of motor thereby the rotating shaft that guarantees motor rotor radial deflection does not take place, make the rotation of motor rotor balance and stability, the axle of radial ball bearing and gyroaxis is that resilient engagement can make ball bearing not bear big pressure and causes wearing and tearing simultaneously; Has mechanical performance preferably; Prolonged the useful life of motor, the implementation of elastic collar is simple simultaneously, and cost is lower.Whereby, it can make the rotation of motor balance and stability the utility model, and better mechanical property has improved the generating efficiency of motor, has prolonged the useful life of motor, and cost is lower.
A kind of wind-driven generator comprises fan blade and fan blade rotating shaft, and said fan blade rotating shaft is connected with above-mentioned magnetic suspension generator rotor axial, and said magnetic suspension generator also comprises: central shaft; Stator is fixed in said central shaft; Generator amature; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.Because the concrete structure of magnetic suspension generator has been done detailed description at preamble, so repeat no more at this.The wind-driven generator that adopts the utility model to provide; It can support motor rotor in the axial direction through axial magnetic suspension bearing; Can offset the deadweight of motor rotor, reach the purpose of axial unloading, improve the generating efficiency of wind-driven generator and the utilance of wind-force; The rotation of its ability balance and stability simultaneously, better mechanical property has prolonged the useful life of wind electricity motivation, and cost is lower.
In sum; The flywheel rotor of the magnetic levitation energy storage flywheel motor of the utility model is through the rotatable central shaft that is supported in of gyroaxis; Gyroaxis comprises the axial magnetic suspension bearing and the radial ball bearing of coaxial setting, and axial magnetic suspension bearing is the support flying wheel rotor in the axial direction, can offset the deadweight of flywheel rotor; Reach the purpose of axial unloading, improved efficiency of motor; The ball bearing outer ring is a resilient engagement through the axle of elastic collar and gyroaxis simultaneously; Form resiliency supported; Thereby radial deflection does not take place and reduces electric efficiency in the rotating shaft that guarantees flywheel rotor, makes the rotation of magnetic levitation energy storage flywheel motor balance and stability, and the axle of radial ball bearing and gyroaxis is that resilient engagement can make ball bearing not bear big pressure and causes wearing and tearing simultaneously; Has mechanical performance preferably; Prolonged the useful life of fly-wheel motor, the implementation of elastic collar is simple simultaneously, and cost is lower.Whereby, it can make the rotation of magnetic levitation energy storage flywheel motor balance and stability the utility model, and better mechanical property has improved the efficient of fly-wheel motor, has prolonged the useful life of fly-wheel motor, and cost is lower.
Above embodiment only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement in view of the above, can not limit the protection range of the utility model.All equalizations of being done with the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.
Claims (18)
1. a magnetic levitation energy storage flywheel motor is characterized in that, comprising:
Central shaft;
Stator is fixed in said central shaft;
Flywheel rotor; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit, and said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
2. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that, the stator punching end of said stator is equipped with the switch Hall element that three spaces differ 120 degree electrical degrees.
3. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that, the section thickness of said elastic collar is 0.5 millimeter to 5 millimeters.
4. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that, said elastic collar forms through the bearing chamber perfusion elastic gum at said gyroaxis.
5. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that, said magnetic levitation energy storage flywheel motor also comprises vacuum envelope, and said vacuum envelope is connected with said central shaft.
6. according to each described magnetic levitation energy storage flywheel motor of claim 1 to 5; It is characterized in that; The magnetic levitation energy storage flywheel motor comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel that are mounted on said flywheel rotor inwall, and each magnetic pole comprises 7 blocks of alternate magnet steel that mount of homopolarity;
Said stator comprises 18 stator slots.
7. magnetic levitation energy storage flywheel motor according to claim 6 is characterized in that, the ratio of the notch size of said stator slot and the spacing of adjacent magnet steel is 1.4～1.6.
8. magnetic levitation energy storage flywheel motor according to claim 6 is characterized in that, the winding mode of three phase windings of said stator is:
A phase
B phase
C phase
wherein
expression 1 groove is advanced, and → 6 expressions 6 grooves go out.
9. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that magnetic suspension bearing comprises internal stator and external rotor, and said internal stator and external rotor comprise the annular magnetic steel ring of at least two axial chargings respectively,
The annular magnetic steel ring of said internal stator is identical with the axial height of the annular magnetic steel ring of said external rotor, and the annular magnetic steel ring of said internal stator is positioned at the annular magnetic steel ring inside of said external rotor.
10. magnetic levitation energy storage flywheel motor according to claim 9 is characterized in that, is provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said internal stator; Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said external rotor.
11., it is characterized in that the physics air gap between the annular magnetic strength circle of the annular magnetic steel ring of said internal stator and said external rotor is 0.2 millimeter to 5 millimeters according to claim 9 or 10 described magnetic levitation energy storage flywheel motors.
12. magnetic levitation energy storage flywheel motor according to claim 11 is characterized in that, said internal stator and said external rotor comprise the annular magnetic steel ring of 5 axial chargings respectively,
The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is NSNSN, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is SNSNS;
The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is SNSNS, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is NSNSN.
13. magnetic levitation energy storage flywheel motor according to claim 1; It is characterized in that; Said flywheel rotor external diameter is a carbon steel for the flywheel material of
to
flywheel rotor, the rotating speed ± 16000rpm of said flywheel.
14. magnetic levitation energy storage flywheel motor according to claim 1; It is characterized in that; The flywheel material of the said flywheel rotor of said flywheel external diameter
is glass fiber or carbon fiber, the maximum speed of said flywheel is respectively ± 20000rpm or ± 60000rpm.
15. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that, said magnetic levitation energy storage flywheel motor comprises the control system that is used to control its operation, and said control system comprises with motor drive controller and three-phase bridge rectifier,
When said magnetic levitation energy storage flywheel machine operation during in electric motor state, said motor drive controller is controlled said magnetic levitation energy storage flywheel motor and is quickened or the stable speed operation, converts electrical energy into mechanical kinetic energy;
When said magnetic levitation energy storage flywheel machine operation during in the generator state; Said motor drive controller stops to drive said magnetic levitation energy storage flywheel motor; To carry out full-wave rectification and output to the back-emf of said magnetic levitation energy storage flywheel motor by the three-phase bridge rectifier, convert mechanical kinetic energy into electric energy.
16. a generator is characterized in that, said generator comprises:
Central shaft;
Stator is fixed in said central shaft;
Generator amature; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
17. a motor is characterized in that, comprising:
Central shaft;
Stator is fixed in said central shaft;
Motor rotor; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
18. a wind-driven generator comprises fan blade and fan blade rotating shaft, said fan blade rotating shaft is connected with the magnetic suspension generator rotor axial, it is characterized in that, said magnetic suspension generator also comprises:
Central shaft;
Stator is fixed in said central shaft;
Generator amature; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204905508U CN202353412U (en) | 2011-11-30 | 2011-11-30 | Magnetic suspension energy storage flywheel motor, generator, electromotor and wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204905508U CN202353412U (en) | 2011-11-30 | 2011-11-30 | Magnetic suspension energy storage flywheel motor, generator, electromotor and wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353412U true CN202353412U (en) | 2012-07-25 |
Family
ID=46542375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204905508U Expired - Fee Related CN202353412U (en) | 2011-11-30 | 2011-11-30 | Magnetic suspension energy storage flywheel motor, generator, electromotor and wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570749A (en) * | 2011-11-30 | 2012-07-11 | 深圳市配天电机技术有限公司 | Magnetic levitation energy storage flywheel motor, generator, motor and wind driven generator |
-
2011
- 2011-11-30 CN CN2011204905508U patent/CN202353412U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570749A (en) * | 2011-11-30 | 2012-07-11 | 深圳市配天电机技术有限公司 | Magnetic levitation energy storage flywheel motor, generator, motor and wind driven generator |
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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 |
Granted publication date: 20120725 Termination date: 20171130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |