CN102738922A - Disk high-voltage direct-current generator - Google Patents
Disk high-voltage direct-current generator Download PDFInfo
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- CN102738922A CN102738922A CN2012101363997A CN201210136399A CN102738922A CN 102738922 A CN102738922 A CN 102738922A CN 2012101363997 A CN2012101363997 A CN 2012101363997A CN 201210136399 A CN201210136399 A CN 201210136399A CN 102738922 A CN102738922 A CN 102738922A
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Abstract
The invention relates to a disk high-voltage direct-current generator. The disk high-voltage direct-current generator consists of two parts, namely a stator and a rotor, wherein a power generating disk is combined by connecting the rotor with a connecting lead in series through a power generating unit, and a plurality of groups of power generating disks are superposed to form the generator rotor. The generator adopts the basic principle of Faraday disk power generation, the power generating unit is used for cutting magnetic induction lines of the vertical power generating disks to produce electromotive force, two adjacent power generating units are connected in series by virtue of the connecting lead, and the connecting lead cannot produce reverse electromotive force in rotation through magnetic shielding near the connecting lead to further enable the generator to have a very high power generating voltage. Meanwhile, the generator also can be used as a motor, and the generator and the motor with the structures have the characteristics of small internal resistance without iron loss, simple structure, wide material sources, large capacity, and small volume and calorific value. Used as the motor, the generator also has the advantages of great output torque and wide application range.
Description
Technical field
The invention belongs to dynamo-electric field, adopt the Faraday disk electricity generating principle, no iron loss, internal resistance is low, need not rectifier and changement, can produce very a kind of high tension direct current generator of High Level DC Voltage after multiple electric disk combines.
Background technology
Existing DC generator critical piece is made up of stator, rotor, generating winding, rectifier and brush etc.; Be integrally formed on the iron core that generating winding embedding silicon steel plate packing becomes; The voltage of existing large-sized DC generator is generally 800V or following, and rarer more high-tension DC generator is employed.If obtain the existence that direct current has iron loss behind the employing AC rectification, and also there is fluctuation in direct voltage.
Faraday's disc dynamo is to adopt a conductive disc in stable unidirectional magnetic field, to rotate cutting magnetic induction line and send direct current.This kind generation technology can't obtain practical application because the voltage that sends is on the low side, but this kind electricity-generating method is owing to adopt rosette to generate electricity; The internal resistance of generator is very low, and the magnetic field intensity in the rotor do not change, and can not produce eddy current loss; Do not have iron loss, corresponding efficient is also high.
Summary of the invention
The present invention adopts the basic principle of Faraday disk generating; Utilize rosette in unidirectional stationary magnetic field, to rotate cutting magnetic induction line and produce induced electromotive force; In generator, this disk is made up of the independent sector element of polylith, and the equal when rotated cutting magnetic induction line in each unit produces identical induced electromotive force; Connect from beginning to end with lead between adjacent 2 unit, the formation cascaded structure amplifies the output voltage of generator.
Generator unit adopts the low Armco iron of resistivity to manufacture conducting base; Iron plate is processed to the generator unit of given shape; After being assembled into monolithic generating disk, apply the insulating material of magnetic conduction again, make insulated from each other and magnetic conductions smoothly between 2 layers of adjacent generating disk.
Every 2 layers of adjacent disk also adopt the mode of the overlap joint disk that will generate electricity to be together in series, and form high output voltage.Copper conductor plays the effect of the adjacent generator unit of connection, owing to applied coatings between the generating disk, and the voltage of single-stage generator unit is very low, and the output voltage of each layer generating disk is also not very very high, after the insulation of employing magnetic, can satisfy insulating requirements.
In order to prevent between the generator unit to connect copper cash cutting magnetic induction line and produce the electromotive force that reverse voltage is offset generating in rotary course; Adopt the material of low permeability to wrap up around the connecting line of this generator between generator unit; And the copper conductor periphery is the generator unit that magnetic property favorable industrial pure iron material is processed; Can play the effect of magnetic field shielding, connect magnetic induction line intensity that lead cuts in rotary course very a little less than, also can be very low even produce inverse electromotive force.So just, can obtain very big output voltage.
The present invention is because rotor adopts paramagnetic substance; And the resistivity of magnetic is very big; Because stator swells with rare earth permanent magnet property material or uses magnet exciting coil as magnetic pole, the size and Orientation in magnetic field can not change, and the rotor cutting magnetic induction line can not produce alternating magnetic fields yet; So can not have induced current, just mean the existence that does not have iron loss yet.
Rotor structure of the present invention is simple, and material source is extensive, and is easy to manufacture, and the generator amature volume is little, and moment of inertia is little, and magnetic direction is parallel to axially, so the dragging easily of this generator.The simple number of plies of generating disk or the output voltage that the increase rotating speed just can increase generator of increasing; And because the material of generator amature adopts Armco iron and the copper of low-resistivity as basic material; The internal resistance of generator is low; The DC generation unit that the capacity of can processing is very big, and need not very big equipment volume.
The voltage pulse free that generator sends, rotation speed change only can cause the change of output voltage, power supply good stability.Low, the no iron loss of internal resistance, the caloric value of generator is also very low.
Generator can be used for motor to be used, and the still acting of no matter generating electricity, and its voltage and current that can tolerate is all very big, as long as adopt suitable disk quantity or thickness just can obtain very little internal resistance accordingly, corresponding apparatus power and rated current raise.Owing to adopt megohmite insulant to separate between the adjacent discs; And the voltage between the adjacent discs is very little; Disc material resistivity is low; The withstand high temperatures ability is stronger, even the generator built-in electrical insulation descends and to make to be short-circuited between certain adjacent discs and also can not influence the normal use of generator or motor like this, only if certain connects lead place open circuit fault takes place.So useful life of this motor, general motor will be grown, even and the rotor watered and wetting still can normally use.
Description of drawings
Fig. 1 is the sketch map of generating disc unit, and 1 is the generator unit matrix among the figure, and 2 is location hole; Be used for when assembling generating disk, playing the role of positioning; And stationary power generation unit usefulness, 3 is limited impression, through forming stopper slot (like the structure among Fig. 2 4) jointly with adjacent generator unit corresponding groove; Can the whole generating machine rotor be formed a whole behind the inner filled thermoset resin, and in rotary course, increase rotor structure stability.
Fig. 2 is divided into 12 part with disk for the monolithic generating disk after assembling in this example, and sequence number 1 is a generator unit among the figure, and 2 for connecting the connection leads of adjacent 2 generator units, and 3 is location hole, and 4 is stopper slot.Every generating disk has place's gap, and this position is connected in series with following one deck generating disk, and then forms the rotor of generator, like Fig. 3.
The sketch map of Fig. 3 after for the assembling of multi-disc generating disk, the generating disk after the identical in structure combination is overlapped together with lead series connection back successively, can adopt the high insulation resin that is mixed with magnetic of resistivity in the middle of the adjacent two layers generating disk.
Fig. 4 is the structure chart of insulation board and end cap, and insulation board is installed between the end cap and generating disk at generator amature two ends, prevents that disk and end cap are short-circuited, and the material of insulation board is that high-resistance insulating material is processed.End cap is the excellent material of magnetic property, plays the conducting magnetic induction line and constitutes the magnetic field shielding structure with the generator amature disk, reduces the inverse electromotive force of copper connecting line.
Fig. 5 is the input shaft end end cap, and 1 is backstay among the figure, plays the effect of location generator unit; When rotor high-speed rotates, prevent simultaneously generator unit off-the-line and destroy rotor each other, play pressuring action, 2 is end cap; Compress the generating disk jointly with the end cap of rotor opposite side, 3 is the power power shaft, plays the effect of input torque; Be used for drawing generator, cable picks out end and is arranged in the rotating shaft.4 is the extension of power shaft, the main effect that is used as the installation fan or output cable is set.
Fig. 6 is the structure chart of generator amature, and Fig. 1 is an end cap, and 2 is the connecting rod clamp nut, and 3 are the generating disc set after laminating, and 4 is insulation board, the disk short circuit that prevents to generate electricity, and 5 is the power shaft end cap.
Fig. 7 is a stator magnetic conduction briquetting, and 1 is axis hole, is the location hole of rotating shaft; Middle rotating shaft of placing generator amature, 2 is permanent magnet end yoke piece, plays the effect of the magnetic induction line in the 2 rare-earth permanent magnet magnetic poles of structure among Fig. 8 being derived and is transferred to rotor; 3 is magnetic conduction briquetting boss; Itself and generator amature coaxial line, boss play the effect that reduces gap between two structures, reduce the influence of air-gap to magnetic field.
Fig. 8 is a generator stator structure, and 1 is stator body, the non-magnetic material of material selection; 2 is the magnetic pole installing hole; In adorn ferromagnetic rare-earth permanent magnet or magnet exciting coil so that the magnetic field of generating usefulness to be provided, 3 is bolt hole, inside is passed screw rod stator and end cap is compressed.
Fig. 9 is the stator end cap, and material is that non-magnetic material is processed, and hole 1 is a bolt hole, through bolt end cap is pressed on the stator, and hole 2 is an axis hole.
Figure 10 is the structure when not adding end cap and magnetic conduction briquetting for the electric generator structure figure after assembling, left side, and the right side is complete electric generator structure (for display structure directly perceived, the part parts cut).Sequence number 1 is the generator amature after assembling, and 2 is rare-earth permanent magnet magnetic pole or magnet exciting coil, and 3 are bolt hole (bolt does not draw among the figure), and 4 is generator unit stator, and 5 is the stator end cap, and 6 is the magnetic conduction briquetting.
Embodiment
Embodiment 1:
Make generator unit shown in Figure 1, the location hole of generator unit is enclosed within on the special-purpose anchor clamps positions, be uniformly distributed with and arrange 2 shown in back welding Fig. 2 and connect leads, require the connection resistance value of welding little and firm.Just assembling becomes monolithic generating disk shown in Figure 2 after successively 12 generator units in this example being welded successively; In the monolithic disk, having a place to connect lead need weld the outstanding outer end projecting point with a certain generator unit of last layer in the inside of last unit of this layer generating disk; Weld the remaining generator unit of one deck down more successively; Through all generator units all weld and finish, and have so just made the basic framework of generator amature, afterwards installation diagram 4 insulation boards on the input shaft end end cap in Fig. 5 again; To begin the inboard protrusion of a generator unit most and connect the output cable terminal; To weld good Armco iron generator unit again and successively be sleeved on the backstay, brushing is mixed with the thermosetting resin of magnetic between 2 layers of adjacent generating disk, and the disk that will generate electricity successively again laminates and puts in place.Inboard protrusion with a last remaining generator unit after last piece disk installs welds another root output cable.
Rotor is heat-treated after compressing, and resin is cured.Handle after the dynamic balancing adjustment just can be processed generator amature.Stator adopts rare-earth permanent magnet material to make magnetic pole, and around arriving two ends of rotor, final magnetic field will form the circular passage to the magnetic conduction pressing plate between permanent magnet, magnetic conduction pressing plate and rotor as yoke.Magnetic direction in the rotor is parallel with rotor axis, like this power shaft drive in the rotor rotation process generator unit just cutting magnetic induction line to produce size be E=1/2B (L
2 2-L
1 2) induced electromotive force of ω, wherein L
2Be the maximum radius of generating disk in magnetic field, L
1Radius for minimum.Though the generating voltage of monolithic is very low, because the multi-disc generator unit connects through the low connection lead of resistance successively, the voltage that sends of generator also just is multiplied accordingly like this.
For exampleMaking a disk diameter is 0.7m, and internal diameter is the generator amature of 0.15m, and establishing magnetic field intensity is 1T, and the generator amature rotating speed is that per second 50 changes, and then then has according to Faraday's electromagnetic induction law:
Because there is centre bore in the generating disk, so the generating voltage of single generator unit is:
Magnetic field strength
, the outer radius
, the inner radius
, the angular velocity
The forward generating voltage E of monolithic generator unit
JustFor:
Because adjacent two generator unit connecting lines are supposed in the influence of Magnetic Shielding Effectiveness, near the magnetic field intensity the connecting line is B
1:
The electromotive force size E that produced of connecting line cutting magnetic induction line then
Instead:
Amount to the induced electromotive force
that the generator unit of monolithic can produce, then the generating voltage of monolithic generating disk is:
The number of plies that laminates of supposing disk is 30 layers; The thickness of every layer of generating disk is 3mm; The thickness of insulating barrier is 2mm; The thickness of the generator amature integrated disc portions of then processing is merely 150mm, but the generating voltage of 30 layers of generating disk has reached the voltage of 6480V, considerably beyond the voltage levvl of DC generator of 800V of prior art.
Embodiment 2:
The making of generator amature such as scheme 1, generator adopt a plurality of rotors to rotate simultaneously, keep the rotating speed of rotor identical through machine driving, and turning to can be identical or opposite.
Magnetic Field Source can adopt permanent magnet to carry out excitation and also can adopt magnetic excitation coil on the stator of generator, describes with the scheme that adopts two rotors to generate electricity at present.
Two rotors are installed in the same stator side by side, adopt gear to connect between the rotor or the belt wheel connection, and the two has identical rotor angular velocity of rotation.Excitation field adopts the horseshoe magnet frame directly over two generator amatures; Magnet or yoke that two the epitrochanterian paramagnetic materials and the rotor other end are passed through in the magnetic field that makes magnet produce form magnetic circuit; Like this as long as can make two rotors rotate simultaneously and cutting magnetic induction line after power shaft is driven; If can also carry out the output current that parallel connection further increases generator when the dimensional parameters of two rotors is in full accord, improve the power of generator.If output voltage difference but rated current can be paid the utmost attention to the voltage of series connection with further raising generator when suitable.
This kind scheme can reduce the design of field circuit, and can realize that multiple generator forms parallel connection output with voltage output, and does not need to manufacture and design again the power that new generator just can reach to be needed.
The generating voltage of this generator is proportional to factors such as the diameter, magnetic screen degree of the number of plies, magnetic field intensity, exciting voltage and electric current, generator speed, the disk of generating disk, and the bigger electric pressure of then generating electricity of above-mentioned factor is high more.The voltage of generator can be arranged flexibly, and voltage range can be arranged from several lying prostrate between the volts up to ten thousand flexibly, also can obtain littler equipment volume or bigger power through the adjustment of parameter.Just the given an example a kind of generating voltage that generator sent of specification of the present invention obtains new effect and just repeats no more for changing single parameter or comprehensive parameters.
Embodiment 3:
The generator of this structure also can be used as DC motor and uses, just if the employing permanent magnet then only needs to connect DC power supply as magnetic pole can turn round continuously, then seemingly easily realize the conversion of generator and motor with existing electric machinery as using the electromagnet excitation.Because this apparatus features, characteristics such as internal resistance is low, iron loss and copper loss are low, and the volume of generator is little.Can under little direct voltage, realize the output of high pulling torque during as direct current machine.
Because this moment, the disk through overlapping together was repeated in the magnetic field of motor, after the energising of disk two end cables, through each generator unit, each unit all receives the effect of electromagnetic force to electric current, makes disk produce moment around the shaft successively.When the disk number of plies of motor is more,, but, also can produce very big electric current because the internal resistance of motor is very low even the voltage at motor two ends is little.And each generator unit all receives equal-sized moment loading, and stack just can obtain very big output torque later.And do not need the DC motor of significant volume this moment.Such situation needs the transport facility of the occasion of high pulling torque to use applicable to electric automobile, electric locomotive, tramcar etc.The occasion that also can well adapt to the output of other moments of torsion as long as corresponding conditions uses Rational Parameters such as the quantity, internal resistance of suitable voltage, electric current, disk down, so the use occasion of motor and form are very flexible, has the scope of application very widely.
Because as the occasion of motor, the carrying load ability owing to situation that does not produce electric spark and motor behind the use brushless structure is strong, uses so can also be applied to inflammable and explosive even high quick-fried occasion.And use low-voltage DC also can produce very big output torque, and then can reduce because condition of high voltage produces the danger of electric spark even electric shock down.
Because the generating disk can adopt the low Armco iron of resistivity, conduction paramagnetic material or non-magnetic metal and magnetic material combination to make.With the Armco iron is example, and the thickness of generating disk is if improving then corresponding resistance value also can reduce, so the internal resistance of this generator can be very low.Thickness through increasing disk and the sectional area that connects lead can reduce the internal resistance of generator, and the corresponding load-carrying ability of generator also is improved.Because internal resistance reduces and has also reduced the caloric value of generator, so in reasonable range, can copper loss be reduced to very low degree.
Because the magnetic field that generator uses is the stationary magnetic field; Magnetic field source can be that permanent magnet also can adopt magnet exciting coil to produce magnetic field; The method that magnet exciting coil can adopt self-excitation also can adopt it to encourage; Target is to make the rotor axis direction of generator that the constant magnetic induction line with parallel axes arranged, can cutting magnetic induction line when making the rotor rotation.
Because this generator field is parallel with rotor axis; Rotor revolves the back accumulative total magnetic flux change amount that turns around and can not change, even magnetic field can not influence the voltage that sends at generator shaft to inhomogeneous yet, no matter how the magnetic field of i.e. generator generation distributes; As long as exciting current, exciting voltage are constant; Perhaps permanent magnet magnetic is unattenuated, and under the constant situation of generator speed, the voltage that generator sent remains constant.Common DC generator can be pulsed through the commutator commutation time, and this generator need not changement, and the voltage that sends is also constant, so power supply stability is more excellent.
The internal resistance of this generator is very low, the heat that has only copper loss in theory and produced, and heat is very low, so the power of this generator is also high with the power of volume alternating current generator.
Because the size and Orientation in magnetic field does not all change, and can not produce eddy-current heating in the time of each generator unit cutting magnetic induction line, can not produce hysteresis effect owing to magnetic field intensity or direction change yet.Owing to there is not main iron loss loss, the generating efficiency of generator is higher, and it is little to be made into volume, and the high-power high-tension DC generator that internal resistance is low adopts the high insulating material of voltage withstand class can also produce higher generating voltage.
When generator when DC motor uses, the iron loss of motor and copper loss are very low, and since the internal resistance lower calorific value very little.Can under very low voltage conditions, realize very big output torque.The diameter of at present supposing motor is 0.4m, and magnetic field intensity is 1T, and the electric current of the motor of flowing through is assumed to be 100A, and every disk of motor is divided into 12 parts, has 50 disks and laminates and process this motor.The suffered moment of torsion of then single generator unit is M=0.5BIL
2=2Nm, but because nearly 12 * 50=600 of unit existence of organizing and quantity is arranged in this motor more, so whole moment of torsion then has 600 * 2=1200Nm, and this moment of torsion has surpassed the maximum engine torque of general automobile.And the output torque of this motor is directly proportional with size of current, if increase the number of plies of disk, the output torque of motor can be bigger, and this moment of torsion still is without the moment of torsion of speed changer.
DC motor is provided with and can be used as fire-proof motor after the brushless structure and be applied to inflammable and explosive environment such as colliery, and the power of motor can be very big, and output torque can be very big, so carrying load ability is strong.
Claims (10)
1. disk high tension direct current generator is characterized in that: generating equipment adopts the synthetic generating of a plurality of generator unit series disk, and the disk that generates electricity is parallel laminates for each; Be connected in series between disk; Superpose and then obtain high voltage through voltage,, magnet exciting coil or permanent magnetic material are installed in the stator of generator through this rotor that is combined to form generator with each unit; Magnetic direction is parallel to the axis of generator amature; Magnetic field forms loop through generator amature and magnetic pole of the stator, and generator itself does not need structures such as commutator, carbon brush, need not rectification and just can obtain direct current.
2. according to the described disk high tension direct current generator of claim 1; It is characterized in that: the generator unit of generator requires the ability conductive magneto-conductive; Form magnetic field shielding through the air-gap between the magnetic conduction generator unit or other non-magnetic fillers, and then the minimizing connecting line produces reverse voltage in the generator rotation process.
3. according to the described disk high tension direct current generator of claim 1; It is characterized in that: all adopt the permeability magnetic material of insulation to insulate between every layer of generating disk, preventing to generate electricity forms short circuit between disk, can increase the axial magnetic flux of generator amature simultaneously; Because the voltage of each generator unit of generator is not high; The voltage of corresponding single generating disk is not high yet, so just can reduce the difficulty of insulation, after in the generator certain position puncture short taking place, only can reduce the voltage that sends of generator yet; Generator still can work on, only if open circuit fault takes place.
4. according to the described disk high tension direct current generator of claim 1; It is characterized in that: the magnetic direction of generator and generator amature parallel axes; When the size and Orientation in magnetic field kept constant, generating disk the magnetic induction line intensity and the direction of in rotary course, cutting did not change, under the constant situation of rotor speed; The voltage constant that generator sent, pulse free.
5. according to the described disk high tension direct current generator of claim 1; It is characterized in that: multiple modes such as the diameter that the generating voltage of generator can be through changing the generating disk, the number of plies of disk, generator field intensity, rotating speed are adjusted; And when adopting the situation of stabilizing magnetic field or permanent magnet; Because the size and Orientation of magnetic field intensity is uniformly distributed with and changes; Even the generating disk that adopts low-resistance Armco iron to make generator can not produce eddy current yet, the efficient of generator and caloric value also can be very low.
6. according to claim 1 and 2 described disk high tension direct current generators, it is characterized in that: the connecting line between the generator unit of generator adopts low-resistance lead to connect, and lead is that non-magnetic material is processed; Play the adjacent generator unit of series connection, under the situation that resistance is low and the sectional area connection lead is bigger of generator unit, the internal resistance of generator is very low; And because it is very low to connect the reverse potential of lead behind the magnetic field shielding; So when needing under the jumbo situation, after selecting suitable voltage, through reducing the internal resistance of generator; Corresponding rated current just increases; So can reach very big generator power, because generator rotor structure need not the power requirement that very big equipment volume just can reach to be needed.
7. according to the described disk high tension direct current generator of claim 1; It is characterized in that: rotate when adopting a plurality of structures to make it identical or opposite direction through mechanically operated mode with the identical generator amature of size; The voltage that more corresponding generator amature is sent carries out serial or parallel connection, so just can realize the rising of generator voltage or under the constant situation of voltage, increase exponentially output current.
8. according to the described disk high tension direct current generator of claim 1; It is characterized in that using copper wires wound rotor successively when adopting identical version, the generating disk uses magnetic to fill at interval; Adjacent lead both sides then use non-magnetic material fixedly to play the effect of magnetic screen; Such generator amature just can produce the alternating current of high pressure when the magnet exciting coil of stator coil adopts alternating voltage to carry out excitation, and such generator amature is because the rotor that adopts magnetic to make, and magnetic flux is big; And, also can prevent the generation of eddy current because insulation property are superior.
9. according to the described disk high tension direct current generator of claim 1; Its generating voltage is proportional to factors such as the diameter, Magnetic Shielding Effectiveness of the number of plies, magnetic field intensity, exciting voltage, exciting current, generator speed, the disk of generating disk; The output voltage of generator can just can obtain the voltage from several volts to volts up to ten thousand through adjusting single parameter or making up adjustment; Generation current then is inversely proportional to the internal resistance of generator; Internal resistance can reduce internal resistance through thickness, sectional area, the sectional area of lead or the form of resistivity that changes generator unit, obtaining bigger rated current, and then realizes the generator of various voltages or electric current.
10. according to the described disk high tension direct current generator of claim 1; When it is used as DC motor; Because each generator unit is one another in series, electric current all receives the effect of Ampere force during successively through each generator unit, but connects lead because the effect of magnetic screen is produced Ampere force hardly; So repeatedly just produce the moment of torsion of very big motor after the stack; Because motor withstand voltage is to be distributed on each generator unit and the generating disk, power of electric motor and also can obtain very big motor torque also with regard to corresponding raising when voltage was high when low-voltage.
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|---|---|---|---|
| CN2012101363997A CN102738922A (en) | 2012-05-05 | 2012-05-05 | Disk high-voltage direct-current generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101363997A CN102738922A (en) | 2012-05-05 | 2012-05-05 | Disk high-voltage direct-current generator |
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| CN102738922A true CN102738922A (en) | 2012-10-17 |
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| CN2012101363997A Pending CN102738922A (en) | 2012-05-05 | 2012-05-05 | Disk high-voltage direct-current generator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767294A (en) * | 2014-01-06 | 2015-07-08 | 郑州泽正技术服务有限公司 | DC power generation method, manufactured disc, motor and applications |
| CN105322742A (en) * | 2014-12-13 | 2016-02-10 | 谭健 | Super-high-voltage direct current power generation |
| CN114994354A (en) * | 2022-06-13 | 2022-09-02 | 广州粤芯半导体技术有限公司 | Metal workpiece rotating speed detection device and detection method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048639U (en) * | 1989-02-02 | 1989-11-29 | 张路明 | Direct transmission natural direct current generator |
| US5391954A (en) * | 1992-04-17 | 1995-02-21 | Seiko Instruments Inc. | Direct current motor |
| CN2545742Y (en) * | 2002-04-26 | 2003-04-16 | 杨永林 | Permanent-magnet brushless commutatorless DC electric machine |
| CN102292901A (en) * | 2009-01-23 | 2011-12-21 | 长锡虎 | Power-generating apparatus with improved power-generating efficiency and rotating force |
| CN202197207U (en) * | 2011-09-09 | 2012-04-18 | 郭仲益 | Double-magnetic-suspension array type power generation structure |
-
2012
- 2012-05-05 CN CN2012101363997A patent/CN102738922A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048639U (en) * | 1989-02-02 | 1989-11-29 | 张路明 | Direct transmission natural direct current generator |
| US5391954A (en) * | 1992-04-17 | 1995-02-21 | Seiko Instruments Inc. | Direct current motor |
| CN2545742Y (en) * | 2002-04-26 | 2003-04-16 | 杨永林 | Permanent-magnet brushless commutatorless DC electric machine |
| CN102292901A (en) * | 2009-01-23 | 2011-12-21 | 长锡虎 | Power-generating apparatus with improved power-generating efficiency and rotating force |
| CN202197207U (en) * | 2011-09-09 | 2012-04-18 | 郭仲益 | Double-magnetic-suspension array type power generation structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767294A (en) * | 2014-01-06 | 2015-07-08 | 郑州泽正技术服务有限公司 | DC power generation method, manufactured disc, motor and applications |
| CN105322742A (en) * | 2014-12-13 | 2016-02-10 | 谭健 | Super-high-voltage direct current power generation |
| CN114994354A (en) * | 2022-06-13 | 2022-09-02 | 广州粤芯半导体技术有限公司 | Metal workpiece rotating speed detection device and detection method thereof |
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Application publication date: 20121017 |