CN202405929U - Side-by-side motor system, generator system and electric motor system - Google Patents

Side-by-side motor system, generator system and electric motor system Download PDF

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Publication number
CN202405929U
CN202405929U CN 201120490537 CN201120490537U CN202405929U CN 202405929 U CN202405929 U CN 202405929U CN 201120490537 CN201120490537 CN 201120490537 CN 201120490537 U CN201120490537 U CN 201120490537U CN 202405929 U CN202405929 U CN 202405929U
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CN
China
Prior art keywords
motor
flywheel
electric
stator
energy storage
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CN 201120490537
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Chinese (zh)
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漆亚梅
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SHENZHEN PEITIAN MOTOR TECHNOLOGY Co Ltd
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SHENZHEN PEITIAN MOTOR TECHNOLOGY Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16Mechanical energy storage, e.g. flywheels or pressurised fluids

Abstract

The utility model relates to a side-by-side motor system, a generator system and an electric motor system. the side-by-side motor system comprises at least one pair of magnetic levitation energy storage flywheel motors installed side by side, the magnetic levitation energy storage flywheel motors are identical in structure, operate in opposite directions and display zero momentum on the outside, each magnetic levitation energy storage flywheel motor comprises a central shaft, a stator and a flywheel rotor, the stator is fixed on the central shaft, the flywheel rotor is rotatably supported on the central shaft through a rotary shaft, the rotary shaft comprises an axial magnetic levitation bearing and a radial ball bearing in fine fit with the central shaft, and the outer ring of the ball bearing is in elastic fit with the shaft system of the rotary shaft through an elastic ferrule to form elastic support. The pair of magnetic levitation energy storage flywheel motors displays zero momentum on the outside, so that stable operation of the system can be ensured, mechanical performance is favorable, the efficiency of the flywheel motors is improved, the service life of the flywheel motors is extended, and cost is relatively low.

Description

A kind of electric system of existing side by side, generator system and electric motor system
Technical field
The utility model relates to magnetic suspension motor, more particularly, relates to a kind of electric system of existing side by side, generator system and electric motor system.
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 electric system of existing side by side, generator system and electric motor system 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; A kind of electric system of existing side by side is provided; Comprise the magnetic levitation energy storage flywheel motor that at least one pair of is existed side by side and installs, the structure of said a pair of magnetic levitation energy storage flywheel motor is identical, and rotation direction is opposite; Externally present zero momentum, and said magnetically levitated flywheel motor comprises:
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 electric system of existing side by side 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 electric system of existing side by side of the utility model, the section thickness of said elastic collar is 0.5 millimeter to 5 millimeters.
According to the electric system of existing side by side of the utility model, said elastic collar forms through the bearing chamber perfusion elastic gum at said gyroaxis.
According to the electric system of existing side by side 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 electric system of existing side by side 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 electric system of existing side by side 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.
According to the electric system of existing side by side of the utility model, the winding mode of three phase windings of said stator is:
According to the electric system of existing side by side 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 electric system of existing side by side 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 electric system of existing side by side 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.
The electric system of existing side by side 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.
The electric system of existing side by side 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.
The electric system of existing side by side 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 electric system of existing side by side 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 system, and said generator system comprises the generator that at least one pair of is existed side by side and installs, and said a pair of generator Structure is identical, and rotation direction is opposite, externally presents zero momentum, 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 electric motor system, and said electric motor system comprises the motor that at least one pair of is existed side by side and installs, and the structure of said pair of motors is identical, and rotation direction is opposite, externally presents zero momentum, and said motor 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 electric system of existing side by side of the utility model comprises the magnetic levitation energy storage flywheel motor that at least one pair of is existed side by side and installs, and the rotation direction of a pair of magnetic levitation energy storage flywheel motor is opposite, externally presents zero momentum.Because a pair of magnetic levitation energy storage flywheel motor externally presents zero momentum, can guarantee the operation of system stability.The flywheel rotor of magnetic levitation energy storage flywheel motor 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 exist side by side structure principle chart of electric system of the utility model;
Fig. 2 is the structure principle chart of a magnetic levitation energy storage flywheel motor in the utility model preferred embodiment;
Fig. 3 is the structure principle chart that the utility model selects axial magnetic suspension bearing among the embodiment;
Fig. 4 is P=4 among the utility model embodiment, the cross-section structure schematic diagram of S=18 external rotor accumulated energy flywheel motor;
Fig. 5 is the schematic diagram of the control system of a magnetic levitation energy storage flywheel motor 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 depicted in figs. 1 and 2, a kind of electric system of existing side by side of the utility model comprises the magnetic levitation energy storage flywheel motor 100 that at least one pair of is existed side by side and installs, and the structure of a pair of magnetic levitation energy storage flywheel motor 100 is identical, and rotation direction is opposite, externally presents zero momentum.Magnetic levitation energy storage flywheel motor 100 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.
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. 5) 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. 6 for details) that is used to control its running simultaneously; During 100 work of magnetic levitation energy storage flywheel motor; Make it work in electric motor state by control system 20 driven magnetic levitation energy-storing flywheel motors, 100 acceleration or stable speed operation, storage 0.5J Ω during flywheel rotor 10 high speed rotating 2Kinetic energy, wherein J is the moment of inertia of accumulated energy flywheel rotor 10, Ω is the angular speed of flywheel rotor.When magnetic levitation energy storage flywheel motor 100 worked in the generator state, control system 20 stopped magnetic levitation energy storage flywheel motor 100 is driven, and simultaneously the back-emf of fly-wheel motor magnetic levitation energy storage flywheel motor 100 was realized full-wave rectification and was exported 0.5J Ω 2Kinetic energy changes electric energy into.
The electric system of existing side by side of the utility model comprises the magnetic levitation energy storage flywheel motor 100 that at least one pair of is existed side by side and installs, and the rotation direction of a pair of magnetic levitation energy storage flywheel motor 100 is opposite, externally presents zero momentum, can guarantee the operation of system stability.Axial magnetic suspension bearing 4 is support flying wheel rotor 10 in the axial direction, can offset the deadweight of flywheel rotor 10, reaches the purpose of axial unloading, has improved efficiency of motor; Ball bearing 5 outer rings are resilient engagement through the axle of elastic collar 6 and gyroaxis 11 simultaneously; Form resiliency supported; Thereby radial deflection does not take place and reduces electric efficiency in the rotating shaft that guarantees flywheel rotor 10, makes the rotation of magnetic levitation energy storage flywheel motor 100 balance and stabilities, and the axle of radial ball bearing 5 and gyroaxis 11 is that resilient engagement can make ball bearing 5 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 6 is simple simultaneously, and cost is lower.Whereby, it can make the rotation of magnetic levitation energy storage flywheel motor 100 balance and stabilities the utility model, and better mechanical property has improved the efficient of fly-wheel motor, has prolonged the useful life of fly-wheel motor 100, and cost is lower.
Preferably, vacuum envelope 7 seals whole magnetic levitation energy storage flywheel motor 100, through a unidirectional vacuum pumping opening and vacuum air pump, can keep vacuum degree below 10Pa to carrying out vacuum suction in the vacuum envelope (7).
Like Fig. 2 and shown in Figure 5, magnetic levitation energy storage flywheel motor 100 flywheel rotors 10 comprise magnet steel 2 and the flywheel 1 that is mounted on flywheel rotor 10 inwalls.Stator 9 comprises stator punching 12, stator slot 13 and is wrapped in the winding on the stator 9.
Magnetic levitation energy storage flywheel motor 100 comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel 2 that are mounted on flywheel rotor 10 inwalls, and each magnetic pole comprises 7 blocks of alternate magnet steel that mount 2 of homopolarity.The stator 9 of fly-wheel motor 100 comprises 18 stator slots 13.The ratio of the notch size of stator slot 13 and the spacing of adjacent magnet steel 2 is 1.4~1.6; This ratio is the notch size of stator slot 13 and the spacing Optimum Matching of adjacent magnet steel 2; The location torque of motor is minimized; Location torque (DETENT TORQUE) is meant that motor does not have under the situation of energising, and stator pins the moment of rotor.
The winding mode of three phase windings of stator 9 is: wherein expression 1 groove advance; → 6 expressions 6 grooves go out, and other stator slots in like manner.Simultaneously, the utility model adopts concentrates the winding mode, and winding overhang is little, and copper loss reduces 20%,
As 2 and shown in Figure 3; 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 6; 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 utility model electric system of existing side by side 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 is continuous referring to figs. 1 through Fig. 4, comprises the generator that at least one pair of is existed side by side and installs, and the rotation direction of said a pair of generator is opposite, externally presents zero momentum, and said generator comprises: axle; 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.
Generator comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel that are mounted on said generator amature inwall, and 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: wherein expression 1 groove advance, → 6 the expression 6 grooves go out.
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.
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 generator amature of perhaps said flywheel external diameter is glass fiber or carbon fiber, the maximum speed of said flywheel is respectively ± 20000rpm or ± 60000rpm.
The utility model also provides a kind of motor, and is continuous referring to figs. 1 through Fig. 4, comprises the motor that at least one pair of is existed side by side and installs, and the rotation direction of said pair of motors is opposite, externally presents zero momentum, and said motor comprises: axle; 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.
Motor comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel that are mounted on said motor rotor inwall, and 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: wherein expression 1 groove advance, → 6 the expression 6 grooves go out.
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.
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 motor rotor of perhaps said flywheel external diameter is glass fiber or carbon fiber, the maximum speed of said flywheel is respectively ± 20000rpm or ± 60000rpm.
In sum, the electric system of existing side by side of the utility model comprises the magnetic levitation energy storage flywheel motor that at least one pair of is existed side by side and installs, and the rotation direction of a pair of magnetic levitation energy storage flywheel motor is opposite, externally presents zero momentum.Because a pair of magnetic levitation energy storage flywheel motor externally presents zero momentum, can guarantee the operation of system stability.The flywheel rotor of magnetic levitation energy storage flywheel motor 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.
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 (17)

1. the electric system of existing side by side is characterized in that, comprises the magnetic levitation energy storage flywheel motor that at least one pair of is existed side by side and installs; The structure of said a pair of magnetic levitation energy storage flywheel motor is identical; Rotation direction is opposite, externally presents zero momentum, and said magnetically levitated flywheel motor comprises:
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. the electric system of existing side by side 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. the electric system of existing side by side according to claim 1 is characterized in that, the section thickness of said elastic collar is 0.5 millimeter to 5 millimeters.
4. the electric system of existing side by side according to claim 1 is characterized in that, said elastic collar forms through the bearing chamber perfusion elastic gum at said gyroaxis.
5. the electric system of existing side by side 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 electric system of existing side by side 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. the electric system of existing side by side 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. the electric system of existing side by side according to claim 6 is characterized in that, the winding mode of three phase windings of said stator is:
9. the electric system of existing side by side 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. the electric system of existing side by side 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 the 10 described electric systems of existing side by side.
12. the electric system of existing side by side 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. the electric system of existing side by side 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. the electric system of existing side by side 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. the electric system of existing side by side 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 system is characterized in that, said generator system comprises the generator that at least one pair of is existed side by side and installs, and said a pair of generator Structure is identical, and rotation direction is opposite, externally presents zero momentum, 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.
17. an electric motor system is characterized in that, said electric motor system comprises the motor that at least one pair of is existed side by side and installs, and the structure of said pair of motors is identical, and rotation direction is opposite, externally presents zero momentum, and said motor 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.
CN 201120490537 2011-11-30 2011-11-30 Side-by-side motor system, generator system and electric motor system Expired - Fee Related CN202405929U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120490537 CN202405929U (en) 2011-11-30 2011-11-30 Side-by-side motor system, generator system and electric motor system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120490537 CN202405929U (en) 2011-11-30 2011-11-30 Side-by-side motor system, generator system and electric motor system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102570704A (en) * 2011-11-30 2012-07-11 深圳市配天电机技术有限公司 Collateral motor system, generator system and motor system
CN105972153A (en) * 2016-07-28 2016-09-28 易随科技股份有限公司 Inertia flywheel transmission component and system with same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102570704A (en) * 2011-11-30 2012-07-11 深圳市配天电机技术有限公司 Collateral motor system, generator system and motor system
CN105972153A (en) * 2016-07-28 2016-09-28 易随科技股份有限公司 Inertia flywheel transmission component and system with same

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