CN87217235U - Axial air-gap synchronous motor with consentric construction - Google Patents

Axial air-gap synchronous motor with consentric construction Download PDF

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Publication number
CN87217235U
CN87217235U CN 87217235 CN87217235U CN87217235U CN 87217235 U CN87217235 U CN 87217235U CN 87217235 CN87217235 CN 87217235 CN 87217235 U CN87217235 U CN 87217235U CN 87217235 U CN87217235 U CN 87217235U
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CN
China
Prior art keywords
main
rotor
stator
iron core
winding
Prior art date
Application number
CN 87217235
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Chinese (zh)
Inventor
姚学宏
王洁
贺光雄
陈海阔
陈守治
李太航
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上海现代信息技术研究所
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Application filed by 上海现代信息技术研究所 filed Critical 上海现代信息技术研究所
Priority to CN 87217235 priority Critical patent/CN87217235U/en
Publication of CN87217235U publication Critical patent/CN87217235U/en

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Abstract

The utility model discloses a large-and-medium volume synchronous machine, comprising a disk-shaped rotor which is arranged at a rotary shaft and two disk-shaped stators which are coaxially arranged in parallel at the both side of the both sides, and the middle of the stators and the rotor keeps a definite axial air gap. The stators and the rotor are respectively provided with an auxiliary excitation component, a main excitation component and a main synchronization component which are radially arranged from inside to outside, and the corresponding proportions of the rotor and the stators are respectively aligned. The structure is equal to that the original three motors are combined into a motor, having only a casing, which makes the difficulty of installation and debugging reduced. The axial air gap motor of the utility model can realize brushless running under constant voltage.

Description

Axial air-gap synchronous motor with consentric construction
The utility model relates to a kind of synchronous machine of big-and-middle capacity, relates in particular to a kind of axial direction electric machine that comprises stator and rotor.
Big-and-middle in the past capacity synchronous machine group is paid exciter by exchanging, and AC exciter and main motor are formed, and main motor is supplied with excitation by coaxial with it AC exciter, and AC exciter is supplied with excitation by the coaxial exciter of paying, and promptly three motors are done coaxial rotation.And motor in the past is the radial air gap motor, the coaxial installation of cylindrical circular rotor and stator, and rotor is in the above-mentioned axle rotation of stator internal winding.Though main motor volume is very big, space between stator and rotor is big, but the radial air gap electric machine structure can't utilize this space, and three motors can only be placed apart, after being linked to be coaxial rotation, it is quite difficult that three axles of three motors will be debugged the minimum concentricity of error.Bring a lot of troubles for like this group of motors Installation and Debugging, and its floor space is also very big.Two relative motion surface of radial air gap motor stator and rotor are all cylindrical in addition, and they are settling magnetic conduction and electric conducting material on cylinderical surface, and these magnetic conductions and current-carrying part (space) are manufactured into " groove " and " tooth " and arrange at certain intervals.Because these parts are on cylinderical surface, so their " tooth wall " can not be all parallel with " cell wall ".So in the electricity and the design of magnetic with calculate the contradiction that exists " tooth " and " groove ".Whether the solution of these contradictions will have substantial connection with performance, quality and its behavioral trait after the motor manufacturing.Also have fixed (commentaries on classics) sub-iron core generally all with silicon steel sheet through a series of side of cutting, towards inside and outside circle, jet-bedding etc., it can produce leftover bits.Therefore the active material such as the silicon steel sheet of motor fail to be fully utilized.
The purpose of this utility model provides the electric rotating machine of the utilance of a kind of active material that can improve electric rotating machine significantly such as silicon steel sheet.
Another purpose of the present utility model provides and a kind ofly can solve motor in the past because " tooth " and the electric rotating machine of the contradiction between " groove " that exists on the columnar rotor surface.
Another purpose of the present utility model provides a kind of electric rotating machine, it not only can make the Installation and Debugging of the synchronous machine of this big-and-middle capacity make things convenient for manyly than three coaxial Installation and Debugging of axle of three motors in the past, and the floor space of this motor compares in the past, and group of motors also significantly reduces.
A kind of electric rotating machine at above-mentioned purpose provides is characterized in that: stator and rotor profile are discoid, and along the axis direction of same rotating shaft alternately, have certain axial air-gap between stator and rotor.
This structure of described stator and rotor and mutual arrangement architecture, make stator and rotor two sides be all the plane, and be parallel to each other between stator side and the rotor side surface, above-mentioned " tooth " all is parallel being resolved because of " tooth " and " groove " all with contradiction between " groove ".
Iron core partly forms with reeling behind the complete silicon strip jet-bedding in discoid stator and the rotor, so it does not have leftover bits, and having improved the electric rotating machine active material significantly mainly is the utilance of silicon steel sheet.
A kind of electric rotating machine that the utility model provides has a rotor, two stators, and two stators are positioned at the rotor both sides, to reach the balance of magnetic pull between rotor both sides stator and rotor.
A kind of electric rotating machine that the utility model provides, its rotor is made up of three parts, this three part is to comprise pair excitation part that is positioned at inner and circumferential a plurality of permanent magnet poles, the main excitation part that comprises the iron core of the ring-type that is positioned at the middle part and the main winding on this iron core comprises the main sync section that is positioned at outside and circumferential main field core and the main field winding on each iron core.Above-mentioned three parts are installed in to concentric co-axial on the rotor substrate successively from inside to outside.Its stator also is made up of three parts, this three part be comprise the ring-type iron core and on this iron core pay excitation winding pay the excitation part, the main excitation part of a plurality of secured cores that comprising circumferentially and the field coil on each iron core comprises the main sync section of the main iron core of ring-type and the synchronous winding of master on this iron core.Three parts on this stator also are installed on the stator substrate successively from inside to outside with one heart and with above-mentioned armature spindle with one heart.That is to say that in the past three motors (main frame, main exciter and pay exciter) are integrated, and its three parts are installed from inside to outside with one heart, and same main shaft, same shell.This big-and-middle capacity, the arranged concentric that the utility model provides and to have Installation and Debugging of synchronous machine of axial air-gap much simpler than three coaxial Installation and Debugging of axle of three motors in the past, and this motor floor space in same casing is also than the coaxial floor space much less when placed apart of three motors.
A kind of electric rotating machine that the utility model provides, it has one measurement, controlling unit and silicon controlled distribution panelboard are housed.The output voltage of getting main synchronous winding on the stator is that the synchronous generator output voltage is the input signal of measurement links, the output of measurement links and the input of controlling unit link, the output signal of controlling unit removes to control the above-mentioned silicon controlled angle of flow, controllable silicon is linked on the motor stator again, so just having formed one controls thyristor operating angle with the motor output voltage and feeds back on the motor stator more then, to keep the feedback control system of motor output voltage stabilization, to realize constant voltage control.
A kind of electric rotating machine that the utility model provides is equipped with the silicon diode rectifying device on stator, the rotating diode rectifying device is housed on rotor substrate.The induction alternating current of paying excitation winding output on the stator is supplied with the field coil of main excitation part behind above-mentioned silicon diode rectifying device, the main field winding of main sync section is supplied with in the main winding output of main excitation part on the rotor after the rectification of above-mentioned rotation silicon diode.So just do not need brush, realized blushless operation.
A kind of electric rotating machine that the utility model provides binds round a becket respectively, to keep the even of above-mentioned axial air-gap on each main excitatory magnetic pole of rotor.Specifically, when rotor during because of mechanical wears such as bearings, the air gap that a side can occur is little, the air gap of opposite side becomes big phenomenon, as near the right side stator and leave the left side stator, owing on each main field core of rotor a becket (being equivalent to the closed-loop path) is arranged, by Lenz's law as can be known, the right side stator repels left rotor, and the left side stator attracts left rotor, will make the rotor that off-axis takes place get back to the equilbrium position.So avoided rotor when rotating, to wave because of bearing wear, so that rotor and the stator phenomenon of wiping mutually.
By aforesaid the utility model content as can be known, the utlity model has following advantage:
1, partly be made of as can be known iron core in the utility model stator and the rotor, it can improve electric rotating machine active material material significantly mainly is the utilance of silicon steel sheet.
2, the utility model stator and changeed the side and be all the plane, rotor and stator are spaced along the rotation direction that to make their sides be parallel to each other, so just solved " tooth " contradiction with " groove ", the i.e. contradiction of " magnetic is close " and " electricity close ", make the performance of making rear motor, quality and its behavioral trait are greatly improved.
3, the utility model adopts discoid stator and rotor to be spaced and to be the structure of two stators along the rotating shaft axis direction, so just make the stator and the rotor unilateral magnetic force that exist in the axial air gap electric machine obtain balance, overcome the big obstacle on the axial air gap electric machine road for development, axial air gap electric machine will be widely used.
4, also be main advantage of the utility model, by the structure of the coaxial arranged concentric of three parts of big-and-middle capacity synchronous machine, three motors in the past installing are respectively integrated, reduced the workload of motor Installation and Debugging greatly, and arranged the area occupied much less respectively than three motors in the past.
5, the electric rotating machine that provides of the utility model, on each main excitatory magnetic pole of rotor, bound round a becket respectively, can keep like this motor axial air-gap evenly, avoided rotor former thereby produce and wave the phenomenon that rotor and stator are wiped mutually because of bearing wear etc. when rotating.
6, the utility model is supplied with the induction alternating current of paying excitation winding output on the stator field coil of stator after fixing commutation system rectification, the main field winding of main sync section is supplied with in the main winding output of main excitation part after being contained in the rotating diode rectification on the rotor substrate, make motor energy blushless operation.
7, the utility model has one to be equipped with and to measure and the distribution panelboard of controlling unit, and the electric current of supplying with field coil is controlled, and makes this motor realize that constant voltage realizes, makes main synchronous winding output rated voltage.
Below in conjunction with accompanying drawing most preferred embodiment of the present utility model is described, can further understanding be arranged to particular content of the present utility model by reading this part content.
Fig. 1 is this electric rotating machine vertical sectional view;
Fig. 2 is this rotary motor rotor plane graph and vertical sectional view;
Fig. 3 is this rotary electric machine plane graph and vertical sectional view;
Fig. 4 is the electric connection figure between this electric rotating machine winding;
Fig. 5 is this rotary motor rotor and stator upper core part-structure figure.
Referring to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 are this electric rotating machine vertical sectional view, and Fig. 2 is this rotary motor rotor plane graph and vertical sectional view, and Fig. 3 is this rotary electric machine plane graph and vertical sectional view.Rotor substrate 10 and be fastened in the rotating shaft 11 by set bolt 20, rotating shaft 11 is by bearing 12 supportings.Be fixed with to concentric co-axial pair excitation part 1 of rotor on the rotor substrate, main magnetic part 8 and the main sync section 6 sharpened.Be evenly distributed with a plurality of permanent magnet poles 1 at inner lane along circumference, for example have 16 adjacent magnetic poles of magnetic pole to be opposite pole, Here it is pays an excitation part.In iron core 8a that a middle circle is a ring-type and the main winding 8b on this iron core 8a, main excitation part that Here it is.Outmost turns a plurality of main field core 6a are circumferentially arranged and around each the master on the main field core excitatory around 6b, for example main field core has 12, Here it is main sync section 6.Main field winding 6b and main winding 8b winding are narrated below.Be distributed with the rectifier cell that 6 diodes 7 carry out three-phase bridge rectification between as main field winding 6b and main winding 8b equably at the upper edge, appropriate position of rotor substrate circumference in addition.Moreover outside each main field core 6a becket on the hoop respectively, it can keep air gap between rotor and stator evenly, slow-roll stabilization.
Two structures and the identical stator of effect are contained in the both sides of rotor respectively, comprise that a pair excitation part 2, main three parts of encouraging the stator of part 4 and main sync section 5 all are contained on the casing 21 with one heart along shaft axis, three parts on the stator are corresponding one by one the placement with epitrochanterian three parts by its effect branch, promptly inner ring is iron core 2a and pays excitation winding 2b on the iron core 2a that the two general designation is paid an excitation part 2.At a middle circle is circumferential a plurality of secured core group 4a and the field coil 4b on each iron core, and for example secured core group 4a has 12 iron cores, more than both are referred to as main excitation part 4.In outmost turns is the iron core 5a of ring-type and around the synchronous winding 5b of the master of this iron core, more than both are referred to as main sync section.Proper site at casing also is equipped with the rectifying device 3 that carries out rectification between pair excitation winding 2b and main excitation winding 4b.Main synchronous winding 5b is will narrate on the ring-type iron core 5a below how.The secured core group 4a that the main field core group 6a of above-mentioned rotor goes up around main field winding 6b and stator goes up as follows around the winding of field coil 4b: on adjacent two iron cores around connecting, winding has only two leading-out terminals on each iron core group, but winding around to being opposite on the adjacent iron core, promptly one in a clockwise direction around, then adjacent winding just with counterclockwise around getting on, make adjacent iron core be seen as the heteropolarity magnetic pole at grade when in winding, being connected with direct current.
Referring to Fig. 5, Fig. 5 is this rotary motor rotor and stator upper core part-structure figure, i.e. the structure chart of ring-type iron core 8a and stator upper core 2a and ring-type iron core 5a on the rotor.This iron core by jet-bedding after silicon strip coil and form (it is not shown in the drawings that this coils track from level to level), on iron core end face 3, has radial wire casing 32, also can make the wire casing 40 of the synchronous winding of master on the outer ring of the wire casing of spiral radiation shape such as Fig. 3 stator, above-mentioned corresponding windings 30 on this iron core is embedded in the wire casing 32, connects by lap winding outside wire casing 32.Method for winding behind this complete silicon strip jet-bedding can improve the utilance of electric rotating machine silicon strip significantly, but makes an appointment with 40% of save silicon steel band consumption.
Referring to Fig. 4, Fig. 4 is the electric connection figure between this electric rotating machine winding.Epitrochanterian permanent magnet poles 1 induces high-frequency alternating current in paying on the excitation winding 2b on the stator.Permanent magnet poles 1 is a plurality of.In the drawings for clarity sake, two have only been drawn.The input 5 of three-phase bridge-type rectifier 3 is received in the output of paying excitation winding 2b.Measurement links 14, controlling unit 13 and controllable silicon 15 are housed on the distribution utmost point 9, the input of measurement links 14 is received in the i.e. output of main synchronous winding 5b of the output of whole motor, the input of the output of measurement links 14 and controlling unit 13 links, two outputs of controlling unit 13 are linked to the anode and the control utmost point of controllable silicon 15 respectively, the negative electrode of controllable silicon 15 is linked to the common anode tap of three-phase bridge engagement positions 3, and the common cathode end of three-phase bridge-type rectifier 3 and two lines of the anode of controllable silicon 15 are linked to two inputs of field coil 4b together respectively.Its course of work is as follows: measurement links 14 records signals such as output voltage, power factor from motor output end, and controlling unit 13 is handled the output signal of measurement links 13 signal of back output control controllable silicon 15 angles of flow.Whether the conducting of controllable silicon 15 has influence on by paying excitation winding 2b supplies with the DC excitation electric current of field coil 4b after three-phase bridge-type rectifier 3 rectifications size.And the magnetic field that field coil 4b electric current produces makes the main winding 8b of rotor produce alternating voltage.The input of three-phase bridge-type rectifier 7 is received in the output of three-phase main winding 8b respectively, and the output of rectifying device 7 and main field winding 6b link.The three-phase alternating current of three-phase main winding 5b output can use for the user.
This electric rotating machine also can be used as synchronous motor or phase modifier except as the generator. As synchronous motor, then main synchronous winding 5b can be inserted electrical network, make the motor asynchronous starting, power output on axle. As phase modifier usefulness, can be on a stator input electric power, make the motor asynchronous starting after, control excitatory amount according to inactivity situation automatic or manual, by another stator to the required reactive power of electrical network output.

Claims (8)

1, a kind of electric rotating machine that comprises stator, rotor is characterized in that: comprise that one is contained in disk rotor in the rotating shaft and two and lays respectively at above-mentioned rotor both sides and make the disc stator that parallel coaxial is arranged, keep certain axial air-gap between stator and rotor.
2, electric rotating machine as claimed in claim 1 is characterized in that stator in the above-mentioned motor and rotor have respectively to make radially-arranged pair of excitation part from inside to outside, main excitation part and main sync section, and the appropriate section on rotor and the stator is alignd respectively.
3, by the described electric rotating machine of claim 2, it is characterized in that: the excitation part 2 of paying of said stator comprises ring-type iron core 2a and pays excitation winding 2b in this iron core slot; Main excitation part 4 comprises along circumference and is uniform-distribution with a plurality of secured core 4a and the field coil 4b on each iron core; Main sync section 5 comprises the main iron core 5a of ring-type and the synchronous winding 5b of master in this iron core slot.
4, by the described electric rotating machine of claim 2, it is characterized in that: the excitation part 1 of paying of above-mentioned rotor comprises and is positioned at inner and circumferential a plurality of permanent magnet poles; Main excitation part 8 comprises the iron core 8a of ring-type and the main winding 8b in this iron core slot; Main sync section 6 comprises a plurality of main field core 6a that is positioned at the outside and distributes along excircle and the main field winding 6b on each iron core.
5, by claim 3 or 4 described electric rotating machines, it is characterized in that: ring-type iron core 2a, main iron core 5a on the above-mentioned rotary electric machine and epitrochanterian ring-type iron core 8a have the thin silicon steel band of groove to be rolled into by dashing, bobbin after main iron core 5a is rolled into is radial in the shape of a spiral, and the wire casing after ring-type iron core 2a and 5a are rolled into radially.
6, by the described electric rotating machine of claim 4, it is characterized in that: on each main excitatory magnetic pole 6b of above-mentioned epitrochanterian main sync section, bind round a becket respectively, to keep the even of above-mentioned axial air-gap, avoid rotor when rotating, to wave, so that the phenomenon that rotor and stator are wiped mutually takes place because of bearing wear produces.
7, by claim 3 or 4 described electric rotating machines, it is characterized in that: the induction alternating current of paying excitation winding output of said stator is supplied with the field coil 4b of the main excitation part 4 on the stator after being fixed on the rectifying device rectification on the stator; The main field winding 6b of epitrochanterian main sync section 6 is supplied with in the output of the main winding 8a of above-mentioned epitrochanterian main excitation part 8 after being contained in the silicon diode rectification on the above-mentioned rotor substrate, to realize blushless operation.
8, by the described electric rotating machine of claim 7, it is characterized in that: a measurement and a controlling unit that is contained on the distribution panelboard arranged between above-mentioned rectifying device and field coil, so that the electric current of supplying with the field coil 4b on the stator is controlled, make the synchronous winding 5b of the master output rated voltage of the main sync section 5 on the stator, to realize constant voltage control.
CN 87217235 1987-12-30 1987-12-30 Axial air-gap synchronous motor with consentric construction CN87217235U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 87217235 CN87217235U (en) 1987-12-30 1987-12-30 Axial air-gap synchronous motor with consentric construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 87217235 CN87217235U (en) 1987-12-30 1987-12-30 Axial air-gap synchronous motor with consentric construction

Publications (1)

Publication Number Publication Date
CN87217235U true CN87217235U (en) 1988-07-27

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Application Number Title Priority Date Filing Date
CN 87217235 CN87217235U (en) 1987-12-30 1987-12-30 Axial air-gap synchronous motor with consentric construction

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100384058C (en) * 2005-12-27 2008-04-23 上海大学 Dual-feeding mixed excitation axial magnetic field magento motor
CN103546006A (en) * 2013-10-25 2014-01-29 金坛市微特电机有限公司 Double-stator axial magnetic field permanent magnet brushless direct-current motor
CN103683608A (en) * 2012-09-07 2014-03-26 株式会社神户制钢所 Axial clearance type brushless motor
CN105322742A (en) * 2014-12-13 2016-02-10 谭健 Super-high-voltage direct current power generation
CN105871138A (en) * 2016-05-18 2016-08-17 赵春荣 Energy-saving motor
CN109301883A (en) * 2018-10-30 2019-02-01 河海大学 A kind of the bimorph transducer synchronous capacitor and its control method of rotor energy storage

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100384058C (en) * 2005-12-27 2008-04-23 上海大学 Dual-feeding mixed excitation axial magnetic field magento motor
CN103683608A (en) * 2012-09-07 2014-03-26 株式会社神户制钢所 Axial clearance type brushless motor
CN103683608B (en) * 2012-09-07 2016-03-16 株式会社神户制钢所 Axial-gap brushless motor
CN103546006A (en) * 2013-10-25 2014-01-29 金坛市微特电机有限公司 Double-stator axial magnetic field permanent magnet brushless direct-current motor
CN105322742A (en) * 2014-12-13 2016-02-10 谭健 Super-high-voltage direct current power generation
CN105871138A (en) * 2016-05-18 2016-08-17 赵春荣 Energy-saving motor
CN109301883A (en) * 2018-10-30 2019-02-01 河海大学 A kind of the bimorph transducer synchronous capacitor and its control method of rotor energy storage

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