CN103618410A - Generator system - Google Patents
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- CN103618410A CN103618410A CN201310681295.9A CN201310681295A CN103618410A CN 103618410 A CN103618410 A CN 103618410A CN 201310681295 A CN201310681295 A CN 201310681295A CN 103618410 A CN103618410 A CN 103618410A
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Abstract
The invention discloses a generator system which comprises a control device, a generator driving mechanism and a generator, wherein the control device triggers the generator driving mechanism to be started to enable the generator to generate power; the generator is a permanent magnet generator; the permanent magnet generator comprises a stator, a stator winding, a rotor and a rotating shaft; six stator slots are formed in the inner wall of the stator and are uniformly distributed along the inner circumference of the stator; the rotor is a cylindrical rotor formed by encircling four fan-shaped rare earth permanent magnet steel; the rotating shaft is fixedly sleeved with the rotor; the radius of the rotating shaft is matched with the inner radius of the cylindrical rotor; therefore, the starting resistance of the generator of the generator system is reduced by appropriate amplitude, and the performance and the use safety of the generator in the generator system are guaranteed.
Description
Technical field
The invention belongs to technical field of generators, particularly a kind of generator system.
Background technology
Generator is mechanical energy to be transformed into the motor of electric energy.Conventionally by steam turbine, the hydraulic turbine or internal combustion engine drive.Electric energy is one of topmost energy of modern society.Generator has been widely used in industrial and agricultural production, national defence, science and technology and daily life.And current existing generator, high-rating generator no matter, or small generator all exists starting reactance large, is difficult to the problem of starting.If but the amplitude that the starting reactance of generator is reduced is very large, can cause damage to generator, and bringing unsafe factor, therefore the starting reactance of generator is reduced to suitable scope, is that inventor does further investigation problem to be solved.
Summary of the invention
The problem existing for prior art, the invention provides a kind of generator system, because this generator system has adopted specific permanent magnet generator, the starting reactance square of the starting reactance square permanent magnet generator more of the prior art of this permanent magnet generator has reduced 15%-31%, make the starting reactance of generator in generator system reduce suitable amplitude, guaranteed the performance of generator and used safety.
Technical scheme:
A kind of generator system, comprise control device, generator drive and generator, control device triggers generator drive structural priming and then starter-generator generating, it is characterized in that, described generator is permanent magnet generator, permanent magnet generator comprises stator, stator winding, rotor and rotating shaft, stator inner wall has 6 stator slots, 6 stator slots are uniform along stator inner periphery, rotor is the cylindric rotor that 4 fan-shaped rare-earth permanent magnet steels surround, rotor is fixedly sleeved in rotating shaft, and the radius of rotating shaft and the inside radius of cylindric rotor adapt.
Preferably, stator is the stator being piled into by the thick 50W470 cold-reduced silicon sheet of 0.5mm.
Preferably, between stator and stator winding, adopt the whole embedding structure of epoxy glue.
Preferably, the inner circumferential surface of 4 of rotor fan-shaped rare-earth permanent magnet steels has several grooves.
Preferably, in groove, pour into epoxy glue described rotor be bonded in described rotating shaft, the two ends of rotor by epoxy glue reinforce with described rotating shaft between be connected, the middle part of the outer surface of rotor installs aluminium ring additional, aluminium ring is connected on rotor by Wear Characteristics of Epoxy Adhesive.
Preferably, rotating shaft is annular knurl rotating shaft.
Preferably, 4 of rotor fan-shaped rare-earth permanent magnet steels are NdFeB rear-earth magnet steel.
Preferably, NdFeB rear-earth magnet steel is N-33SH Nd-Fe-B magnet steel; And/or the outer radius R of rotor is 8.65mm, the thickness L of rotor
hfor 5.15mm, the thickness h of the non-slot part of stator is 18mm; And/or leaving air gap between the inwall of the non-slot part of stator and the outer wall of rotor, air gap is of a size of 0.10mm-1.35mm.
Preferably, generator drive comprises
Yaw, one end of yaw is connected with control device, and control device is for controlling the motion of yaw;
Pull bar, pull bar is connected in the other end of yaw by yaw pin;
Tooth bar, tooth bar is connected in one end away from yaw of pull bar by tooth bar pin;
Rack frame, rack frame is for stationary rack; Rack frame is placed on generator, and the rotating shaft of generator extends in rack frame;
Spring, spring is placed on tooth bar between the one end and rack frame away from pull bar;
Gear, gear is socketed in by gear spring in the rotating shaft of generator, wheel and rack engagement;
Ratchet, coaxial ratchet is fixedly connected in the rotating shaft of generator;
When control device is worked, control device promotes yaw and gives pull bar certain pulling force, pull bar pulls tooth bar, the gear that rack drives is socketed in rotating shaft rotates, under the effect of ratchet, now rotating shaft is motionless, spring on tooth bar is compressed and have certain elastic force, when control device work is to when location, yaw is slippage from control device, and the spring on tooth bar resets under the effect of elastic force, and the elastic force of spring passes to gear by tooth bar, gear drives described ratchet and rotating shaft to rotate by gear spring, starter-generator generating.
Preferably, generator system also comprises circuit conversion device, this circuit conversion device comprises for converting to needs the push rod of circuit post, on yaw, be fixed with top flat, top flat is connected with push rod post, when control device is worked, and top flat compressing push rod post, control device work is to when location, and circuit conversion device converts the circuit needing to.
Technique effect:
The invention provides a kind of generator system, the stator inner wall that permanent magnet generator in this generator system adopts has 6 stator slots, 6 stator slots are uniform along described stator inner periphery, rotor is the circular rotor that 4 fan-shaped rare-earth permanent magnet steels surround, rotor is fixedly sleeved in described rotating shaft, make the starting reactance square of the starting reactance square permanent magnet generator more of the prior art of generator reduce 15%-31%, facts have proved, the starting reactance of this generator has reduced suitable amplitude.Because rotor is 4 fan-shaped rare-earth permanent magnet steels, therefore mechanical personnel only need be directly cut into fan-shaped that size is equal to by rare earth permanent magnet steel bar when making, and save a lot of making steps and technique, cost-saving.
Stator is the stator being piled into by the thick 50W470 cold-reduced silicon sheet of 0.5mm, and what adopt due to the stator of generator in prior art is DG310-0.2 silicon steel sheet, and this material is mainly used in high frequency occasion, domestic only have a few steel mill to produce, yield poorly, price is high, and the order cycle time is long.And each operating time of the generator of generator system of the present invention only has several seconds, rotating speed 2000r/min, frequency is not too high, and the loss that eddy current causes is negligible.Therefore adopt the 50W470 cold-reduced silicon sheet that 0.5mm is thick.The replacement of this material does not cause negative effect to the performance of generator, has also reduced the problem of material cost.
Between stator and stator winding, adopt the whole embedding structure of epoxy glue, stator winding and stator are enclosed in epoxy glue reliably.This structure has improved the mechanical strength of stator winding, improved radiating condition, not only in wet environment, can not cause the destruction of stator winding insulation, even if generator is immersed in the special adverse circumstances in water, can work equally, thereby effectively improve the environmental suitability of generator.
The inner circumferential surface of 4 fan-shaped rare-earth permanent magnet steels of rotor has several grooves, in groove, pouring into epoxy glue is bonded in rotor in rotating shaft, the two ends of rotor by epoxy glue reinforce with rotating shaft between be connected, the middle part of rotor outer surface installs aluminium ring additional, aluminium ring is connected on rotor by Wear Characteristics of Epoxy Adhesive, and aluminium ring is for reinforcing being connected of rotor and rotating shaft, and preferably rotating shaft is annular knurl rotating shaft, be convenient to rotor and be more securely fixed in rotating shaft, be difficult for slippage.This structure is greatly simplified the processing of rotating shaft, and technique is simple, has reduced processing cost.
4 fan-shaped rare-earth permanent magnet steels of rotor are NdFeB rear-earth magnet steel, are preferably N-33SH Nd-Fe-B magnet steel, and what the rotor of generator of the prior art adopted is Casting Al-Ni-Co Magnet.But it is the permanent magnetic material that coercive force is lower.In use the whole saturation magnetization of General Requirements, need saturation magnetization again, otherwise magnetic circuit performance significantly declines while repeating to install.In assembling process, to strictly forbid contacting with any ironware, otherwise also can cause local demagnetization and magnetic flux distribution is distorted.So the shortcoming of this material maximum is complex process, magnetic stability is poor.What the present invention adopted is NdFeB rear-earth magnet steel, and its excellent performance is cheap.What preferably adopt is N-33SH Nd-Fe-B magnet steel, and its magnetic energy product reaches 33MGOe, is six times of alnico magnet, N-33SH Nd-Fe-B magnet steel HCJ >=20KOe, higher more than 20 times than alnico magnet, be desirable " high remanent magnetism, high-coercive force " permanent magnetic material.It does not need integral body to magnetize, and magnetic stability is good.This is just for generator is manufacture and design middle raising performance and improve that technique provides may.
Between the inwall of the non-slot part of stator and the outer wall of rotor, leave air gap, this air gap is of a size of 0.1mm-1.35mm, and preferably void dimension is 1.35mm.Because generator in prior art adopts raw-material restriction, in order to guarantee the performance of generator, in prior art, the stator and rotor air gap of generator only has 0.1mm, thereby the parts machining of generator and final assembly have been proposed to high requirement.In generator system of the present invention, generator is owing to having adopted the Nd-Fe-Bo permanent magnet material that performance is more excellent, and the magnetic loading of generator obtains larger raising, and the performance of generator under same volume is significantly improved.Therefore in guaranteeing generator system of the present invention in the performance of generator and prior art in the essentially identical situation of performance of generator, inventor increases to 1.35mm by the stator and rotor air gap of generator in generator system of the present invention, both guaranteed the performance of generator in generator system of the present invention, also make the parts machining difficulty of generator in generator system of the present invention reduce, assembly quality improves, and in generator system, the reliability of generator also obviously improves.Through the actual test to model machine, confirmed validity and the feasibility of this size range.
For driving the generator drive of generator and the control device of generator system to be connected, when control device is worked, control device acts on generator drive and then starter-generator generating.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of generator stator and rotor in generator system of the present invention.
Fig. 2 is generator amature cutting and assembling schematic diagram in generator system of the present invention.
Fig. 3 is generator amature and rotating shaft combination schematic diagram in generator system of the present invention.
Fig. 4 is generator and generator drive structure assembling schematic diagram in generator system of the present invention.
Reference numeral example is as follows:
1-stator, 2-stator slot, 3-rotor, 4 rotating shafts, 5-groove, 6-aluminium ring, 7-epoxy glue, 8-spring, 9-tooth bar, 10-rack frame, 11-gear, 12-gear spring, 13-ratchet, 14-pull bar, 15-yaw, 16-yaw pin, 17-top flat, 18-tooth bar pin.
Embodiment
The invention discloses a kind of generator system, because having adopted stator inner wall, the permanent magnet generator in generator system has 6 stator slots, 6 stator slots are uniform along described stator inner periphery, rotor is the circular rotor that 4 fan-shaped rare-earth permanent magnet steels surround, the fixedly sleeved structure in described rotating shaft of rotor, make the starting reactance square of the starting reactance square generator more of the prior art of generator in generator system reduce 15%-31%, thereby make the starting reactance of generator in generator system reduce suitable amplitude, performance and the practical safety of generator have been guaranteed.
As shown in the figure, Fig. 1 is the schematic diagram of generator stator and rotor in generator system of the present invention, comprise stator 1, rotor 3 and rotating shaft 4, stator 1 comprises 6 stator slots 2, stator winding figure is not shown, and stator winding is the same with generator of the prior art to be wrapped on the projection (being non-slot part) that adjacent stators groove 2 forms.Wherein 6 stator slots 2 are uniform along stator 1 inner periphery, and rotor 3 is the cylindric rotor 3 that 4 fan-shaped rare-earth permanent magnet steels surround, and rotor 3 is fixedly sleeved in rotating shaft 4, and the inside radius of the radius of rotating shaft 4 and cylindric rotor 3 is suitable.
The stator that wherein stator 1 preferably adopts the thick 50W470 cold-reduced silicon sheet of 0.5mm to be piled into.Because what in prior art, the stator of generator adopted conventionally is DG310-0.2 silicon steel sheet, this material is mainly used in high frequency occasion, and domestic only have a few steel mill to produce, and yields poorly, and price is high, and the order cycle time is long.And each operating time of the generator of generator system of the present invention only has several seconds, rotating speed 2000r/min, frequency is not too high, and the loss that eddy current causes is negligible.Therefore adopt the 50W470 cold-reduced silicon sheet that 0.5mm is thick.The replacement of this material does not cause negative effect to the performance of generator, has also reduced the problem of material cost.
Preferably, between stator 1 and stator winding, adopt the whole embedding structure of epoxy glue.Because like this can be so that stator winding and stator 1 be enclosed in epoxy glue reliably.This structure has improved the mechanical strength of stator winding, improved radiating condition, not only in wet environment, can not cause the destruction of stator winding insulation, even if generator is immersed in the special adverse circumstances in water, can work equally, thereby effectively improve the environmental suitability of generator.
As shown in Figure 2,3, Fig. 2 is generator amature cutting and assembling schematic diagram in generator system of the present invention, and Fig. 3 is generator amature and rotating shaft combination schematic diagram in generator system of the present invention.By rare earth permanent magnet steel bar being cut into several equal-sized secter pats, then by Wear Characteristics of Epoxy Adhesive, be connected in rotating shaft 4, form rotor 3.4 fan-shaped rare earth permanent magnets of its rotor 3 have just been preferably NdFeB rear-earth magnet steel, more preferably N-33SH Nd-Fe-B magnet steel.The inner circumferential surface of 4 fan-shaped rare-earth permanent magnet steels of rotor 3 has several grooves 5, in groove 5, pouring into epoxy glue is bonded in rotor in rotating shaft 4, the two ends of rotor 3 by epoxy glue 7 reinforce with rotating shaft 4 between be connected, the middle part, outside of rotor 3 installs aluminium ring 6 additional, aluminium ring 6 is bonded on rotor 3 by epoxy glue 7, and preferably rotating shaft 4 is annular knurl rotating shaft.Rotor 3 employing Nd-Fe-Bo permanent magnet materials due to generator in generator system of the present invention, do not need that p-m rotor 3 is carried out to integral body and magnetize, so inventor preferably adopts tile type Nd-Fe-B magnet steel to replace Casting Al-Ni-Co Magnet.Rotor 3 structures adopt direct adhesive permanent magnetism body in the rotating shaft 4 of annular knurl, at magnet steel outer surface, add aluminium ring 6 and reinforce with epoxy glue 7 at rotor 3 magnet steel two ends.This structure is greatly simplified rotating shaft 4 processing, and technique is simple, has reduced processing cost.In order to verify the Mechanical Reliability of this structure, the moment of torsion that can bear magnet steel outer rim is tested.By the nominal torque that can be calculated generator amature, be 0.017Nm, the minimum 3-5Nm of being of moment of torsion that actual measurement model machine rotor can bear, be nominal torque more than 170 doubly, be much higher than the index of 50 times of conventional values, met the requirement of generator system of the present invention to generator machinery reliability.
Between the inwall of the non-slot part of stator and the outer wall of rotor, leave air gap, described air gap is of a size of 0.1mm-1.35mm, and such as being 0.1mm, 0.30mm, 0.35mm, 0.70mm, 0.90mm, 1.00mm, 1.15mm, being preferably void dimension is 1.35mm.In prior art, the stator and rotor air gap of generator is monolateral only has 0.1mm, thereby the parts machining of generator in generator system and final assembly have been proposed to high requirement.In generator system of the present invention, generator is owing to having adopted the Nd-Fe-Bo permanent magnet material that performance is more excellent, and the magnetic loading of generator obtains larger raising, and the performance of generator under same volume is significantly improved.According to generator principle, electromotive force Ea=Ce φ n volt, the Ce=pN/60a in formula is called electromotive force constant, main and number of pole-pairs p, it is relevant that a way a and conductor are counted N; φ is every utmost point air-gap flux; N is the rotating speed of p-m rotor.If clearly stipulated stator D.C. resistance and generator speed in the specification requirement of generator system, be that Ce and N are substantially definite, if fixed, rotor airgap also remains unchanged, the larger raising because of φ is made Ea also improve thereupon, because every utmost point air-gap flux φ is with fixed, rotor airgap is inversely proportional to, to determine, rotor airgap is brought up to 1.35mm, keep as calculated useful flux φ and the useful flux φ of the prior art of air gap basically identical, therefore in guaranteeing generator system of the present invention in the performance of generator and prior art in the essentially identical situation of performance of generator, inventor determines generator in generator system of the present invention, rotor airgap increases to 1.35mm, both guaranteed the performance of generator in generator system of the present invention, also make the parts machining difficulty of generator in generator system of the present invention reduce, assembly quality improves, in generator system, the reliability of generator also obviously improves simultaneously.Through the actual test to model machine, confirmed validity and the feasibility of this size range.
As shown in Figure 4, be generator in generator system of the present invention and generator drive structure assembling schematic diagram, the driving mechanism of this generator is connected with control device (not shown), and control device triggers this generator drive startup and then starter-generator generating.Wherein generator drive comprises that one end of yaw 15, yaw 15 is connected with control device (not shown); Pull bar 14 is connected in the other end of yaw 15 by yaw pin 16, tooth bar 9 is connected in one end away from yaw 15 of pull bar 14 by tooth bar pin 18, rack frame 10 is for stationary rack 9, rack frame 10 is placed on generator, the rotating shaft 4 of generator extends in rack frame 10, spring 8 is placed on tooth bar 9 between the one end and rack frame 10 away from pull bar 14, gear 11 is socketed in the rotating shaft 4 of generator by gear spring 12, gear spring 12 can adopt spring, gear 11 is connected with tooth bar 9, and ratchet 13 is connected in the rotating shaft 4 of generator.When control device is worked, control device promotes yaw 15 and gives pull bar 14 certain pulling force, pull bar 14 pulls tooth bar 9, tooth bar 9 drives and is socketed in the gear 11 on alternator shaft 4, under the effect of ratchet 13, now rotating shaft 4 is motionless, spring 8 compressions on tooth bar 9 have certain elastic force, when control device work, to when location, (the location here refers to that technical staff is according to the needs of different mechanical devices, designed position), yaw 15 slippage from control device, spring 8 on described tooth bar 9 resets under the effect of described elastic force, the elastic force of described spring 8 passes to gear 11 by tooth bar 9, gear 11 drives ratchet 13 and rotating shaft 4 rotations by gear spring 12, the generating of driving generator.On yaw 15, be fixed with top flat 17, when control device is worked, the push rod post in top flat 17 compressing generator systems on circuit conversion device, schemes not shownly, and when control device work is during to location, circuit conversion device converts the circuit of needs to.Guaranteed generator system of the present invention, when control device is worked, complete generator system in all processes of circuit conversion device conversion, generator generating.
Wherein in generator system of the present invention, the starting reactance square of the generator generator starting moment of resistance more of the prior art reduces by 15%～31%, mainly according to < < middle and small motor > > 2001.28(2), the maximum starting reactance square estimation equation in the calculating > > of mountain covered with gold leaf work < < fractional-slot permanent-magnetic wind driven generator starting reactance square:
M
qmN=π R
2h α L
mc (BH)
maxt/ (L
g+ L
h) (unit: Nm)
In formula, t-number of poles and groove are counted matching factor,
R-rotor outer radius, unit: m
The thickness of the non-slot part of h-stator, unit: m
L
mthe average length of-a pair of magnetic pole closed magnetic circuit, unit: m
L
g-air gap, unit: m
L
h-permanent magnetic material (rotor) thickness, unit: m
(BH)
maxthe maximum magnetic energy product of-permanent magnetic material (rotor), unit: KJ/m
3
α-pole embrace, desirable 0.96
The maximum magnetic energy product of C-permanent magnetic material (rotor) is magnetic energy utilization empirical coefficient (comprising various leakage fields) when static state, desirable 0.12～0.15 (12%～15%)
In generator system embodiment of the present invention, the stator and rotor of generator are 6 groove 4 utmost points, and rotor adopts N-33SH neodymium iron boron, and known parameters is: t=4/6=0.667; R=8.65mm; H=18mm; Lm=48.757mm; L
h=5.15mm; C=0.12; α=0.96; (BH)
max=262.68KJ/m
3; Lg=0.1mm～1.35mm, when Lg=0.1mm, maximum starting reactance square estimation result is 7.9 * 10
-4nm, works as Lg=1.35mm, and maximum starting reactance square estimation result is 6.4 * 10
-4nm.
The stator and rotor of generator of the prior art are 6 groove 6 utmost points, and rotor adopts alnico magnet, and known parameters is, t=6/6=1; R=10.9mm; H=18mm; Lm=59.137mm; L
h=5.15mm; C=0.12; α=0.96; Lg=0.1mm; (BH)
max=106.53KJ/m
3, maximum starting reactance square estimation result is 9.3 * 10
-4nm.
Therefore, in generator system embodiment of the present invention, the starting reactance square of generator reduces 15%-31% compared with the starting reactance square of generator in prior art, makes the starting reactance of generator in generator system reduce suitable amplitude.
Above embodiment is only exemplary embodiment of the present invention, is not used in restriction the present invention, and protection scope of the present invention is defined by the claims.Those skilled in the art in essence of the present invention and protection range, various modifications that the present invention is made or be equal to replacement and also drop in protection scope of the present invention.
Claims (10)
1. a generator system, comprise control device, generator drive and generator, described control device triggers described generator drive structural priming and then starter-generator generating, it is characterized in that, described generator is permanent magnet generator, described permanent magnet generator comprises stator, stator winding, rotor and rotating shaft, described stator inner wall has 6 stator slots, 6 stator slots are uniform along described stator inner periphery, described rotor is the cylindric rotor that 4 fan-shaped rare-earth permanent magnet steels surround, described rotor is fixedly sleeved in described rotating shaft, the radius of described rotating shaft and the inside radius of described cylindric rotor adapt.
2. generator system according to claim 1, is characterized in that, described stator is the stator being piled into by the thick 50W470 cold-reduced silicon sheet of 0.5mm.
3. generator system according to claim 1, is characterized in that, adopts the whole embedding structure of epoxy glue between described stator and described stator winding.
4. generator system according to claim 1, is characterized in that, the inner circumferential surface of 4 fan-shaped rare-earth permanent magnet steels of described rotor has several grooves.
5. generator system according to claim 4, it is characterized in that, in described groove, pouring into epoxy glue is bonded in described rotor in described rotating shaft, the two ends of described rotor by epoxy glue reinforce with described rotating shaft between be connected, the middle part of the outer surface of described rotor installs aluminium ring additional, and described aluminium ring is connected on described rotor by Wear Characteristics of Epoxy Adhesive.
6. according to the arbitrary described generator system of claim 1-5, it is characterized in that, described rotating shaft is annular knurl rotating shaft.
7. according to the arbitrary described generator system of claim 1-5, it is characterized in that, 4 fan-shaped rare-earth permanent magnet steels of described rotor are NdFeB rear-earth magnet steel.
8. generator system according to claim 7, is characterized in that, described NdFeB rear-earth magnet steel is N-33SH Nd-Fe-B magnet steel; And/or the outer radius R of described rotor is 8.65mm, the thickness L of described rotor
hfor 5.15mm, the thickness h of the non-slot part of described stator is 18mm; And/or leaving air gap between the inwall of the non-slot part of described stator and the outer wall of described rotor, described air gap is of a size of 0.10mm-1.35mm.
9. according to claim 1-5,8 arbitrary described generator systems, it is characterized in that, described generator drive comprises
Yaw, one end of described yaw is connected with described control device, and described control device is for controlling the motion of described yaw;
Pull bar, described pull bar is connected in the other end of described yaw by yaw pin;
Tooth bar, described tooth bar is connected in one end away from yaw of described pull bar by tooth bar pin;
Rack frame, described rack frame is for fixing described tooth bar; Described rack frame is placed on described generator, and the rotating shaft of described generator extends in described rack frame;
Spring, described spring is placed on tooth bar between the one end and rack frame away from pull bar;
Gear, described gear is socketed in by gear spring in the rotating shaft of described generator, described gear and the engagement of described tooth bar;
Ratchet, described coaxial ratchet is fixedly connected in the rotating shaft of described generator;
When described control device work, described control device promotes described yaw and gives pull bar certain pulling force, described pull bar pulls tooth bar, the gear that rack drives is socketed in rotating shaft rotates, under the effect of ratchet, now described rotating shaft is motionless, spring on described tooth bar is compressed and have certain elastic force, when described control device work is to when location, the slippage from described control device of described yaw, spring on described tooth bar resets under the effect of described elastic force, the elastic force of described spring passes to gear by tooth bar, described gear drives described ratchet and rotating shaft to rotate by gear spring, starter-generator generating.
10. generator system according to claim 9, it is characterized in that, described generator system also comprises circuit conversion device, this circuit conversion device comprises for converting thereof into needs the push rod of circuit post, on described yaw, be also fixed with top flat, described top flat drives and is connected with described push rod post.
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| CN105024513A (en) * | 2015-07-14 | 2015-11-04 | 抚顺天工元科技有限责任公司 | Rotor of permanent magnet brushless DC motor |
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| CN103618410B (en) | 2016-08-17 |
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