CN103560644A - Magnetic ring stator cylindrical linear switch reluctance motor - Google Patents
Magnetic ring stator cylindrical linear switch reluctance motor Download PDFInfo
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- CN103560644A CN103560644A CN201310566212.1A CN201310566212A CN103560644A CN 103560644 A CN103560644 A CN 103560644A CN 201310566212 A CN201310566212 A CN 201310566212A CN 103560644 A CN103560644 A CN 103560644A
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Abstract
The invention discloses a magnetic ring stator cylindrical linear switch reluctance motor which comprises a stator cylinder and a rotor cylinder. The stator cylinder comprises a stator magnetic ring and a non-magnetic stator sleeve, the stator magnetic ring is fixed to the non-magnetic stator sleeve or is coaxially spliced with the non-magnetic stator sleeve, and the stator cylinder is formed. The rotor cylinder comprises a rotor iron core, the rotor iron core is formed in a one-off mode or is formed by splicing a plurality of parts in the axial direction, rotor teeth, an annular rotor groove and a concentric rotor winding which is arranged in the annular rotor groove and winds around the axle wire of the rotor cylinder are arranged on the rotor iron core. According to the magnetic ring stator cylindrical linear switch reluctance motor, a stator yoke portion is omitted, the using amount of materials for manufacturing the iron core of the motor is reduced, the utilization rate of the iron core materials is improved, insulation between phases for the rotor groove is omitted, manufacturing technologies are simplified, utilization rate of the grooves is improved, and the magnetic ring stator cylindrical linear switch reluctance motor has the advantages of being high in propulsion density, simple and reliable in structure and the like.
Description
Technical field
The present invention relates to a kind of cylindrical shape motor, relate in particular to a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor.
Background technology
Linear electric motors are converted into straight-line mechanical energy by electric energy, have not only omitted intermediate transmission mechanism, and have reduced system loss, are highly suitable for straight line direct-drive type system.
Plate shaped linear electric motors are the open slab construction that cut-off at two ends, and electric machine iron core both sides exist laterally cut-offs, and has obvious transverse edge effect, causes motor internal magnetic field to distribute discontinuous, affects the runnability of motor.Winding mode and the electric rotating machine of plate shaped linear electric motors are similar, have end winding, and when core length is grown and adopted distributed winding configuration, winding utilization is low, and copper loss increases, and have reduced the runnability of motor.Plate shaped linear electric motors, except producing linear advancement power, also can produce normal direction magnetic pull between stator and mover, increase the weight of guide rail load, the useful life of reducing guide rail.
The mechanical structure of cylindrical linear motor, operation principle and performance characteristics are completely not identical with plate shaped linear electric motors, cylindrical linear motor is the cylindrical shape mechanical structure of sealing, because electric machine iron core is closed, laterally do not cut-off, therefore there is not transverse edge effect, motor internal magnetic field is along even circumferential continuous distribution, and propulsive force density is high.Cylindrical linear motor pilot trench decided at the higher level but not officially announced is annular, and motor winding is concentric winding, there is no end winding, and winding utilization is high, and during operation, copper loss is low, is conducive to improve electric efficiency.In addition, because cylindrical linear motor is enclosed construction, the normal direction magnetic pull between motor mover decided at the higher level but not officially announced is cancelled out each other, when armature winding passes into electric current, stator field and mover magnetic field produce axial magnetic thrust by interaction, realize the conversion of electric energy and mechanical kinetic energy.
Due to the difference of operation principle and the distribution of inherent electromagnetic field, the technical scheme that is applicable to plate shaped linear electric motors can not directly apply in cylindrical linear motor.Compare with plate shaped linear electric motors, cylindrical linear motor has following remarkable advantage:
1, electric machine structure is simple, and good seal performance is not subject to centrifugal forces affect during operation;
2, in motor, laterally do not cut-off, magnetic circuit is continuous, there is no transverse edge effect, and runnability is good;
3, winding is concentric disc type winding, there is no end winding, and winding utilization is high;
4, motor, for the cylindrical structure of sealing, effectively overcomes normal direction magnetic pull;
5, motor seal performance is good, compares with open plate shaped linear electric motors, is not vulnerable to the interference of extraneous dust, good operation stability, and maintenance cost is low.
Cylinder-shape linear switched reluctance machines low cost of manufacture, operational reliability is high, has the advantage of moving under various mal-conditions, and maintenance cost is low, and whole system efficiency is higher than cylinder-shape linear induction motor.But due to the characteristic of reluctance torque, motor propulsive force density is lower, therefore, improve the propulsive force density of cylindrical linear motor, be problem demanding prompt solution.In addition, there is mover yoke portion in existing cylindrical linear switched reluctance machines, and electric mover weight is large, and during winding energising, only some magnetic circuit is used effectively, and motor ferromagnetic material utilance is low, and power density and propulsive force density are low.
In linear switched reluctance motor, mover adopts magnetic guiding loop structure can save rear of core, reduce mover quality, improve propulsive force density, but for the longer linear drives occasion of track, conventionally, using there is no iron core one side of winding as orbit, there is a side of winding as mover, object is the consumption that reduces to manufacture the coiling of motor copper, reduces costs.
Summary of the invention
Object of the present invention is exactly in order to address the above problem, a kind of magnetic guiding loop stator cylinder type linear switched reluctance motor is provided, it has the propulsive force density of effective raising linear electric motors, improve winding utilization and core material utilance, reduce mover quality, improve the advantages such as system dynamic response capability.
To achieve these goals, the present invention adopts following technical scheme:
A kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor, it comprises stator tube and mover cylinder, described stator tube comprises stator magnetic guiding loop and non-magnetic stator sleeve, and described stator magnetic guiding loop is fixed on non-magnetic stator sleeve, and inclusive NAND magnetic conduction stator sleeve is coaxially spliced to form stator tube; Described mover cylinder comprises mover core, described mover core one-shot forming or be spliced vertically by a plurality of parts, described mover core is provided with mover tooth, annular mover groove and is placed in the concentric coaxial mover winding being wound around around stator tube axis in annular mover groove.
Described stator tube and mover cylinder are coaxial, and mover cylinder is placed in stator tube inner side.
Described stator magnetic guiding loop and non-magnetic stator sleeve are uniformly distributed vertically.
Described non-magnetic stator sleeve is made by non-magnet material.
Described non-magnet material is aluminium alloy or organic plastic.
Described stator magnetic inductive block is made by high permeability materials.
Between described stator tube and mover cylinder, be provided with annularair gap.
When coil place mover groove center line of described mover winding aligns with a stator magnetic guiding loop center line, the another one coil place mover groove center line that belongs to same phase aligns with another stator magnetic guiding loop center line.
Described mover winding and mover core are partly spliced to form the mode that mover cylinder or employing roll off the production line and are installed in annular stator groove.
Described motor comprises stator tube and mover cylinder, both coaxially install, stator tube outside, mover cylinder is interior, be provided with uniform annulus gap between the two, described stator tube comprises non-magnetic stator sleeve and some stator magnetic guiding loops, stator magnetic guiding loop is evenly fixed on vertically inclusive NAND magnetic conduction stator sleeve on non-magnetic stator sleeve and is spliced, the shape of stator magnetic guiding loop and mutual spacing all equate, mover cylinder comprises mover core and mover groove, and described mover core can one-shot forming or is spliced vertically by a plurality of parts.Described mover groove is annular, in annular mover groove, lays mover winding, and described coil is ceoncentrically wound coil, around mover shaft centre line, is wound around, and the winding in each groove is a coil, and every phase winding is comprised of a plurality of coils.
If the number of phases of motor is m, m is more than or equal to 2 natural number, and electric mover number of poles Pt and stator poles Ps meet the following conditions:
Pt=n*m, Ps=n*m+n or Ps=n*m-n (1)
Wherein, n is more than or equal to 1 natural number.
The number N of teeth t that mover cylinder comprises meets following condition:
Nt=n*m+1 (2)
Wherein, n is more than or equal to 1 natural number.
The annular mover groove that mover cylinder comprises is counted Qs and is met following condition:
Qs=n*m (3)
Wherein, n is more than or equal to 1 natural number.
The magnetic conduction number of rings that stator tube comprises determines by the length of stator tube, and the minimum magnetic conduction number of rings Ns that stator tube comprises meets following condition:
Ns=n*m+n+1 or Ns=n*m-n+1 (4)
Wherein, n is more than or equal to 1 natural number.
Operation principle of the present invention: because described electric mover winding is concentric winding, when mover winding coil is switched on, in ceoncentrically wound coil, will produce magnetic flux, the magnetic flux producing flows along electric mover direction of principal axis, because stator magnetic guiding loop is made by high permeability materials, permeability is very high, when the center line of mover winding place cannelure aligns with certain stator magnetic guiding loop center line, the magnetic flux that mover winding produces via mover axle after, to radially shunt along motor, pass through respectively mover tooth, air-gap, stator magnetic guiding loop is closed, under this position, magnetic circuit reluctance minimum corresponding to magnetic flux that this mover winding coil produces, the magnetic linkage of winding interlinkage is maximum, when this mover winding place annular mover groove center line is when non-magnetic stator sleeve center line between two magnetic guiding loops of stator aligns, the magnetic flux that now this mover winding produces via mover axle after, to radially pass through mover tooth, air-gap and non-magnetic stator sleeve along motor closed, because non-magnetic stator sleeve permeability is very low, magnetic circuit reluctance maximum corresponding to magnetic flux that this winding coil produces, the magnetic linkage of winding interlinkage is minimum.According to magnetic resistance minimum principle, the variation of magnetic circuit reluctance can produce propulsive force, when continual while giving the energising of mover winding coil, and just can be by producing lasting propulsive force and convert electrical energy into mechanical kinetic energy between stator and mover.
Beneficial effect of the present invention:
Stator in motor of the present invention adopts magnetic guiding loop, when mover winding coil is switched on, the magnetic flux that mover winding coil produces is by closed via mover tooth and the stator magnetic guiding loop of annular mover groove both sides, mover winding coil place, the magnetic flux producing due to winding and the mover tooth of annular mover groove both sides all produce interlinkage, therefore winding can the more useful flux of interlinkage, compare with existing cylinder-shape linear switched reluctance machines, motor of the present invention has higher propulsive force density.Because motor of the present invention has saved stator yoke portion, reduced the consumption of manufacturing electric machine iron core material, improved the utilance of material; In each stator slot, only lay a set of winding, compare with existing linear switched reluctance motor, saved phase insulation, simplified motor manufacturing technology, improved groove utilance; Mover winding is concentric coaxial winding, around axis stator, is wound around, and has saved winding overhang, has improved the utilance of copper product; Adopt columnar structured, good seal performance, simple and reliable for structure, power density is high, can meet the rectilinear motion occasion driving at a high speed back and forth.
Accompanying drawing explanation
Fig. 1 is motor execution mode 1 shaft section figure of the present invention;
Fig. 2 is motor execution mode 2 shaft section figure of the present invention;
Fig. 3 is motor cross-sectional view of the present invention.
Wherein, 1. non-magnetic stator sleeve, 2. stator magnetic guiding loop, 3. mover core, 4. annular mover groove, 5. mover winding, 6. annularair gap.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
Embodiment mono-:
As shown in Figure 1, the present embodiment number of motor phases m=3, mover number of poles Pt=6, stator poles Ps=4, the number N of teeth t=7 that mover cylinder comprises, the annular mover groove number that mover cylinder comprises is Qs=6, the stator magnetic conduction number of rings that stator tube comprises is Ns >=5.The present embodiment comprises non-magnetic stator sleeve 1, in non-magnetic stator sleeve 1, lay stator magnetic guiding loop 2, stator magnetic guiding loop 2 is evenly fixed on the inside of non-magnetic stator sleeve 1 vertically, the axial cross section of stator magnetic guiding loop 2 is trapezoidal, special shape is processed into so that fixing with non-magnetic stator sleeve 1 in bottom, in the inner side of non-magnetic stator sleeve 1, be provided with mover core 3, mover core 3 and non-magnetic stator sleeve 1 are coaxially installed, mover core 3 is spliced vertically by a plurality of parts, between non-magnetic stator sleeve 1 and mover core 3, there is annularair gap 6, on mover core 3, there is annular mover groove 4, in annular mover groove 4, lay mover winding 5, mover winding 5 is ceoncentrically wound coil, winding in same annular mover groove 4 is a coil, when the center line of this coil place annular mover groove 4 aligns with the center line of a stator magnetic guiding loop 2, the center line of the another one coil place mover groove of adjacent same phase winding aligns with the center line of another stator magnetic guiding loop 2 with it.
Embodiment bis-:
As shown in Figure 2, embodiment bis-is with the difference of embodiment mono-: 1) stator of motor and mover number of poles are not identical; 2) mounting means of stator magnetic guiding loop and non-magnetic stator sleeve is different; 3) molding mode of mover core is different.The present embodiment number of motor phases m=4, mover number of poles Pt=8, stator poles Ps=6, the number N of teeth t=9 that mover cylinder comprises, the annular mover groove that mover cylinder comprises is counted Qs=8, the stator magnetic conduction number of rings that mover cylinder comprises is Ns >=7, the present embodiment comprises non-magnetic stator sleeve 1, in non-magnetic stator sleeve 1, lay stator magnetic guiding loop 2, stator magnetic guiding loop 2 is spliced vertically with non-magnetic stator sleeve 1, the axial cross section of stator magnetic guiding loop 2 is trapezoidal, in the inner side of non-magnetic stator sleeve 1, be provided with mover core 3, mover core 3 and non-magnetic stator sleeve 1 are coaxially installed, mover core 3 is by mould one-shot forming, between non-magnetic stator sleeve 1 and mover core 3, there is annularair gap 6, on mover core 3, there is annular mover groove 4, in annular mover groove 4, lay mover winding 5, mover winding 5 is ceoncentrically wound coil, winding in same annular mover groove 4 is a coil, when the center line of this coil place annular mover groove 4 aligns with the center line of a stator magnetic guiding loop 2, the center line of the another one coil place mover groove of adjacent same phase winding aligns with the center line of another stator magnetic guiding loop 2 with it.
Figure 3 shows that motor generalized section of the present invention.
The stator of mentioning in this specification and mover are to define for convenience; stator and the mover of motor of the present invention are done linear relative movement; in practical application; mover can be fixed; stator moving linearly; its mechanical structure and operation principle and the present invention are in full accord, also within protection scope of the present invention.
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (10)
1. a magnetic guiding loop stator cylinder shape linear switched reluctance motor, it comprises stator tube and mover cylinder, it is characterized in that, described stator tube comprises stator magnetic guiding loop and non-magnetic stator sleeve, described stator magnetic guiding loop is fixed on non-magnetic stator sleeve, and inclusive NAND magnetic conduction stator sleeve is coaxially spliced to form stator tube; Described mover cylinder comprises mover core, described mover core one-shot forming or be spliced vertically by a plurality of parts, described mover core is provided with mover tooth, annular mover groove and is placed in the concentric coaxial mover winding being wound around around stator tube axis in annular mover groove.
2. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, is characterized in that, described stator tube and mover cylinder are coaxial, and mover cylinder is placed in stator tube inner side.
3. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, is characterized in that, described stator magnetic guiding loop and non-magnetic stator sleeve are uniformly distributed vertically.
4. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, is characterized in that, described non-magnetic stator sleeve is made by non-magnet material.
5. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 4, is characterized in that, described non-magnet material is aluminium alloy or organic plastic.
6. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, is characterized in that, described stator magnetic inductive block is made by high permeability materials.
7. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, is characterized in that, between described stator tube and mover cylinder, is provided with annularair gap.
8. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, it is characterized in that, when coil place mover groove center line of described mover winding aligns with a stator magnetic guiding loop center line, the another one coil place mover groove center line that belongs to same phase aligns with another stator magnetic guiding loop center line.
9. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, is characterized in that, described mover winding and mover core are partly spliced to form the mode that mover cylinder or employing roll off the production line and are installed in annular stator groove.
10. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, is characterized in that, described electric mover number of poles Pt and stator poles Ps meet the following conditions:
Pt=n*m, Ps=n*m+n or Ps=n*m-n;
The number N of teeth t that described mover cylinder comprises meets following condition:
Nt=n*m+1；
The annular mover groove that mover cylinder comprises is counted Qs and is met following condition:
Qs=n*m；
The magnetic conduction number of rings that stator tube comprises determines by the length of stator tube, and the minimum magnetic conduction number of rings Ns that stator tube comprises meets following condition:
Ns=n*m+n+1 or Ns=n*m-n+1;
Wherein, the number of phases that m is motor, m is more than or equal to 2 natural number, and n is more than or equal to 1 natural number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310566212.1A CN103560644B (en) | 2013-11-14 | 2013-11-14 | A kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310566212.1A CN103560644B (en) | 2013-11-14 | 2013-11-14 | A kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor |
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| CN103560644A true CN103560644A (en) | 2014-02-05 |
| CN103560644B CN103560644B (en) | 2016-01-20 |
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| CN201310566212.1A Active CN103560644B (en) | 2013-11-14 | 2013-11-14 | A kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321949A (en) * | 2018-03-15 | 2018-07-24 | 浙江宏泰锆业科技有限公司 | A kind of micro-machine ceramic stator |
| CN109149796A (en) * | 2017-06-16 | 2019-01-04 | 李伟 | A kind of generator armature and the generator using the generator armature |
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| JP2006246571A (en) * | 2005-03-01 | 2006-09-14 | Nagasaki Univ | Reluctance motor |
| CN101159407A (en) * | 2007-11-19 | 2008-04-09 | 哈尔滨工业大学 | Long range cylindrate linear motor |
| CN102545500A (en) * | 2010-12-28 | 2012-07-04 | 株式会社安川电机 | Reluctance motor |
| CN102882347A (en) * | 2012-10-18 | 2013-01-16 | 山东大学 | Dispersed magnetism-conducting block type straight-line switched reluctance motor with double-side stator for concentrated winding |
| CN102931804A (en) * | 2012-10-18 | 2013-02-13 | 山东大学 | Double-side stator unyoked disperse magnetic guide block type linear switched reluctance motor |
| CN103269133A (en) * | 2013-06-06 | 2013-08-28 | 王新 | Transverse flux permanent magnetic or reluctance permanent magnetic motor of ring box structure |
-
2013
- 2013-11-14 CN CN201310566212.1A patent/CN103560644B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006246571A (en) * | 2005-03-01 | 2006-09-14 | Nagasaki Univ | Reluctance motor |
| CN101159407A (en) * | 2007-11-19 | 2008-04-09 | 哈尔滨工业大学 | Long range cylindrate linear motor |
| CN102545500A (en) * | 2010-12-28 | 2012-07-04 | 株式会社安川电机 | Reluctance motor |
| CN102882347A (en) * | 2012-10-18 | 2013-01-16 | 山东大学 | Dispersed magnetism-conducting block type straight-line switched reluctance motor with double-side stator for concentrated winding |
| CN102931804A (en) * | 2012-10-18 | 2013-02-13 | 山东大学 | Double-side stator unyoked disperse magnetic guide block type linear switched reluctance motor |
| CN103269133A (en) * | 2013-06-06 | 2013-08-28 | 王新 | Transverse flux permanent magnetic or reluctance permanent magnetic motor of ring box structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149796A (en) * | 2017-06-16 | 2019-01-04 | 李伟 | A kind of generator armature and the generator using the generator armature |
| CN109149796B (en) * | 2017-06-16 | 2021-01-15 | 李伟 | Generator armature and generator using same |
| CN108321949A (en) * | 2018-03-15 | 2018-07-24 | 浙江宏泰锆业科技有限公司 | A kind of micro-machine ceramic stator |
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| CN103560644B (en) | 2016-01-20 |
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