CN103560644B - A kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor - Google Patents
A kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor Download PDFInfo
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- CN103560644B CN103560644B CN201310566212.1A CN201310566212A CN103560644B CN 103560644 B CN103560644 B CN 103560644B CN 201310566212 A CN201310566212 A CN 201310566212A CN 103560644 B CN103560644 B CN 103560644B
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Abstract
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 multiple part, described mover core is provided with mover tooth, annular mover groove and is placed in the concentric coaxial mover winding be wound around around stator tube axis in annular mover groove.Motor of the present invention eliminates stator yoke, reduces the consumption manufacturing electric machine iron core material, improves the utilance of core material, mover groove eliminates phase insulation, simplify manufacturing process, improve groove utilance, there is the advantages such as propulsive force density is high and simple and reliable for structure.
Description
Technical field
The present invention relates to a kind of cylindrical motor, particularly relate to a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor.
Background technology
Electric energy is converted into the mechanical energy of rectilinear motion by linear electric motors, not only eliminates intermediate transmission mechanism, and reduces system loss, is highly suitable for straight line direct-drive type system.
Plate shaped linear electric motors are the open slab construction that two ends are cut-off, 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, affect the runnability of motor.Winding method and the electric rotating machine of plate shaped linear electric motors are similar, there is End winding, and when core length is longer and when adopting distributed winding configuration, winding utilization is low, copper loss increases, and reduces the runnability of motor.Plate shaped linear electric motors, except producing linear advancement power, also can produce normal direction magnetic pull, increase the weight of guide rail load between stator and mover, reduce the useful life of guide rail.
Mechanical structure, the operation principle of cylindrical linear motor are completely not identical with plate shaped linear electric motors with performance characteristics, cylindrical linear motor is closed cylindrical shape mechanical structure, because electric machine iron core is closed, laterally do not cut-off, therefore there is not transverse edge effect, the circumferentially uniformly continous distribution of motor internal magnetic field, 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, does not have End winding, and winding utilization is high, and during operation, copper loss is low, is conducive to improving 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 interacting, and realize the conversion of electric energy and mechanical kinetic energy.
Due to the difference of operation principle and inherent magnetic distribution, the technical scheme being applicable to plate shaped linear electric motors can not directly apply in cylindrical linear motor.Compared with plate shaped linear electric motors, cylindrical linear motor has following remarkable advantage:
1, electric machine structure is simple, good seal performance, not by centrifugal forces affect during operation;
2, laterally do not cut-off in motor, magnetic circuit is continuous, and do not have transverse edge effect, runnability is good;
3, winding is concentric disc type winding, and do not have End winding, winding utilization is high;
4, motor is closed cylindrical structure, effectively overcomes normal direction magnetic pull;
5, motor seal performance is good, and compared with open plate shaped linear electric motors, be not vulnerable to the interference of extraneous dust, good operation stability, maintenance cost is low.
Cylinder-shape linear switched reluctance machines low cost of manufacture, operational reliability is high, and have the advantage run under various mal-condition, 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, improving the propulsive force density of cylindrical linear motor, is 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, power density and propulsive force density low.
In linear switched reluctance motor, mover adopts magnetic guiding loop structure to save rear of core, reduce mover quality, improve propulsive force density, but for the linear drives occasion that track is longer, usually using there is no the side unshakable in one's determination of winding as orbit, there is the side of winding as mover, object is the consumption reducing to manufacture the coiling of motor copper, reduces costs.
Summary of the invention
Object of the present invention is exactly to solve the problem, a kind of magnetic guiding loop stator cylinder type linear switched reluctance motor is provided, it has the propulsive force density effectively improving 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 multiple part, described mover core is provided with mover tooth, annular mover groove and is placed in the concentric coaxial mover winding be wound around around stator tube axis in annular mover groove.
Coaxially, mover cylinder is placed in inside stator tube for described stator tube and mover cylinder.
Described stator magnetic guiding loop and non-magnetic stator sleeve are uniformly distributed vertically.
Described non-magnetic stator sleeve is made up of non-magnet material.
Described non-magnet material is aluminium alloy or organic plastic.
Described stator magnetic guiding loop is made up of high permeability materials.
Annularair gap is provided with between described stator tube and mover cylinder.
When described mover winding coil place mover groove center line aligns with a stator magnetic guiding loop center line, the another one coil place mover groove center line belonging to same phase aligns with another stator magnetic guiding loop center line.
Described mover winding and mover core part are spliced to form the mode that mover cylinder or employing roll off the production line and are installed in annular mover groove.
Described motor comprises stator tube and mover cylinder, both are coaxial installs, 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 inclusive NAND magnetic conduction stator sleeve on non-magnetic stator sleeve vertically and is spliced, the shape of stator magnetic guiding loop and mutual spacing are all equal, mover cylinder comprises mover core and mover groove, and described mover core can one-shot forming or be spliced vertically by multiple part.Described mover groove is annular, and lay mover winding in annular mover groove, described coil is ceoncentrically wound coil, and be wound around around mover shaft centre line, the winding in each groove is a coil, and every phase winding is made up of multiple coil.
If the number of phases of motor is m, m be more than or equal to 2 natural number, electric mover number of poles Pt and stator poles Ps meets the following conditions:
Pt=n*m, Ps=n*m+n or Ps=n*m-n (1)
Wherein, n be 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 be more than or equal to 1 natural number.
The annular mover groove number Qs that mover cylinder comprises meets following condition:
Qs＝n*m(3)
Wherein, n be more than or equal to 1 natural number.
The magnetic conduction number of rings that stator tube comprises is determined by the length of stator tube,
As stator poles Ps=n*m+n, the minimum magnetic conduction number of rings Ns that stator tube comprises meets: Ns=n*m+n+1;
As stator poles Ps=n*m-n, the minimum magnetic conduction number of rings Ns that stator tube comprises meets: Ns=n*m-n+1;
Wherein, m is the number of phases of motor, m be more than or equal to 2 natural number, n be 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 energized, magnetic flux will be produced in ceoncentrically wound coil, the magnetic flux produced flows along electric mover direction of principal axis, because stator magnetic guiding loop is made up of 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 is via after mover axle, will along the shunting of motor radial direction, respectively through mover tooth, air-gap, stator magnetic guiding loop closes, under this position, the magnetic circuit reluctance that the magnetic flux that this mover winding coil produces is corresponding is minimum, the magnetic linkage of winding interlinkage is maximum, when this mover winding place annular mover groove center line aligns with the non-magnetic stator sleeve center line between stator two magnetic guiding loops, the magnetic flux of now this mover winding generation is via after mover axle, to close along motor radial direction through mover tooth, air-gap and non-magnetic stator sleeve, because non-magnetic stator sleeve permeability is very low, the magnetic circuit reluctance that the magnetic flux that this winding coil produces is corresponding is maximum, and the magnetic linkage of winding interlinkage is minimum.According to magnetic resistance minimum principle, the change of magnetic circuit reluctance can produce propulsive force, when continual give mover winding coil energising time, just 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 energized, the magnetic flux that mover winding coil produces closes via the mover winding coil place annular mover tooth of mover groove both sides and stator magnetic guiding loop, the magnetic flux produced 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, compared with existing cylinder-shape linear switched reluctance machines, motor of the present invention has higher propulsive force density.Because motor of the present invention eliminates stator yoke, reduce the consumption manufacturing electric machine iron core material, improve the utilance of material; Only lay a set of winding in each stator slot, compared with existing linear switched reluctance motor, eliminate phase insulation, simplify motor manufacturing technology, improve groove utilance; Mover winding is concentric coaxial winding, is wound around, eliminates winding overhang, improve the utilance of copper product around axis stator; Adopt columnar structured, good seal performance, simple and reliable for structure, power density is high, can meet the rectilinear motion occasion back and forth driven at a high speed.
Accompanying drawing explanation
Fig. 1 is motor embodiment 1 shaft section figure of the present invention;
Fig. 2 is motor embodiment 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 one:
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, and the stator magnetic conduction number of rings that stator tube comprises is Ns >=5.The present embodiment comprises non-magnetic stator sleeve 1, stator magnetic guiding loop 2 is laid in non-magnetic stator sleeve 1, 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 fix with non-magnetic stator sleeve 1 in bottom, mover core 3 is provided with in the inner side of non-magnetic stator sleeve 1, mover core 3 and non-magnetic stator sleeve 1 are coaxially installed, mover core 3 is spliced vertically by multiple part, annularair gap 6 is had between non-magnetic stator sleeve 1 and mover core 3, mover core 3 there is annular mover groove 4, mover winding 5 is laid in annular mover groove 4, 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 same phase winding adjacent with it aligns with the center line of another stator magnetic guiding loop 2.
Embodiment two:
As shown in Figure 2, embodiment two is with the difference of embodiment one: 1) stator of motor is not identical with mover number of poles; 2) stator magnetic guiding loop is different with the mounting means of non-magnetic stator sleeve; 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 number Qs=8 that mover cylinder comprises, the stator magnetic conduction number of rings that mover cylinder comprises is Ns >=7, the present embodiment comprises non-magnetic stator sleeve 1, stator magnetic guiding loop 2 is laid in non-magnetic stator sleeve 1, stator magnetic guiding loop 2 and non-magnetic stator sleeve 1 are spliced vertically, the axial cross section of stator magnetic guiding loop 2 is trapezoidal, mover core 3 is provided with in the inner side of non-magnetic stator sleeve 1, mover core 3 and non-magnetic stator sleeve 1 are coaxially installed, mover core 3 is by mould one-shot forming, annularair gap 6 is had between non-magnetic stator sleeve 1 and mover core 3, mover core 3 there is annular mover groove 4, mover winding 5 is laid in annular mover groove 4, 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 same phase winding adjacent with it aligns with the center line of another stator magnetic guiding loop 2.
Figure 3 shows that motor generalized section of the present invention.
The stator mentioned in this specification and mover define for convenience; stator and the mover of motor of the present invention do linear relative movement; in practical application; mover can be fixed; stator moving linearly; its mechanical structure and operation principle and the present invention completely the same, also within protection scope of the present invention.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but 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 amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (7)
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, and described stator magnetic guiding loop and non-magnetic stator sleeve are coaxially spliced to form stator tube; Described mover cylinder comprises mover core, described mover core one-shot forming or be spliced vertically by multiple part, and described mover core is provided with mover tooth, annular mover groove and mover winding;
Mover winding is concentric coaxial winding, be placed in annular mover groove, be wound around around stator tube axis, eliminate winding overhang, the circumferentially uniformly continous distribution of motor internal magnetic field, 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 interacting, and realize the conversion of electric energy and mechanical kinetic energy;
Described stator magnetic guiding loop and non-magnetic stator sleeve are uniformly distributed vertically;
When described mover winding coil place mover groove center line aligns with a stator magnetic guiding loop center line, the another one coil place mover groove center line belonging to same phase aligns with another stator magnetic guiding loop center line;
Described electric mover number of poles Pt and stator poles Ps meets 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 number Qs that mover cylinder comprises meets following condition:
Qs＝n*m；
The magnetic conduction number of rings that stator tube comprises is determined by the length of stator tube,
As stator poles Ps=n*m+n, the minimum magnetic conduction number of rings Ns that stator tube comprises meets: Ns=n*m+n+1;
As stator poles Ps=n*m-n, the minimum magnetic conduction number of rings Ns that stator tube comprises meets: Ns=n*m-n+1;
Wherein, m is the number of phases of motor, m be more than or equal to 2 natural number, n be more than or equal to 1 natural number.
2. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, is characterized in that, coaxially, mover cylinder is placed in inside stator tube for described stator tube and mover cylinder.
3. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, it is characterized in that, described non-magnetic stator sleeve is made up of non-magnet material.
4. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 3, it is characterized in that, described non-magnet material is aluminium alloy or organic plastic.
5. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, it is characterized in that, described stator magnetic guiding loop is made up of high permeability materials.
6. a kind of magnetic guiding loop stator cylinder shape linear switched reluctance motor as claimed in claim 1, is characterized in that, be provided with annularair gap between described stator tube and mover cylinder.
7. 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 part are spliced to form the mode that mover cylinder or employing roll off the production line and are installed in annular mover groove.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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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| CN103560644B true CN103560644B (en) | 2016-01-20 |
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| 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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|---|---|---|---|---|
| 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 |
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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 |
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