CN102664504A - Polyphase permanent magnet motor with leakage reactance adjustable structure - Google Patents
Polyphase permanent magnet motor with leakage reactance adjustable structure Download PDFInfo
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- CN102664504A CN102664504A CN2012101419418A CN201210141941A CN102664504A CN 102664504 A CN102664504 A CN 102664504A CN 2012101419418 A CN2012101419418 A CN 2012101419418A CN 201210141941 A CN201210141941 A CN 201210141941A CN 102664504 A CN102664504 A CN 102664504A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/47—Air-gap windings, i.e. iron-free windings
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- Windings For Motors And Generators (AREA)
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Abstract
The invention discloses a polyphase permanent magnet motor with a leakage reactance adjustable structure, and belongs to the technical field of motors. The motor can be a cylindrical rotating motor as well as a flat linear motor. The air gap side of a stator core is a smooth surface, and core slots are axially reserved on the other side of the stator core. A plurality of core slots are uniformly distributed on the surface of a stator. A coil rack is fixedly arranged on the air gap side of the stator core, and is uniformly provided with a plurality of coil slots along a circumferential direction. The coil slots are in one-to-one correspondence with the stator slots. The centerlines of the coil slots and corresponding core slots are positioned on the same radius. One active side of each coil of an armature winding is embedded into a wire casing, and the other active side of the coil is embedded into a stator slot opposite to the wire casing. The stator slot is an open slot, a closed slot or a semi-open slot. The polyphase permanent magnet motor has the advantages of high winding accuracy, high insulation characteristics, short end part, high efficiency and small torque fluctuation.
Description
Technical field
The present invention relates to the multi-phase permanent motor that leakage reactance can be adjusted structure, belongs to machine field.
Background technology
The slotless configuration permanent magnetic brushless integrates permanent magnetism, brushless, slotless, has solved fundamentally that traditional teeth groove structure permagnetic synchronous motor exerts oneself that low, torque fluctuations is big, magnetic hysteresis and eddy current loss is big, magnetic saturation, noise is big, efficient is low and problem such as low-response.Through adopting permanent magnet excitation, cancelled epitrochanterian magnet exciting coil, energy-efficient; Brushless structure has been realized brushless, absence of commutator, no-spark, power-weight ratio height; Adopt slotless configuration, the winding distribution space is big, good heat dissipation, and armature-circuit loss is little; Iron core is unsaturated, and iron loss (eddy current, magnetic hysteresis loss) is little, eliminates slot effect; Eliminate the teeth groove torque fluctuations, the armature winding inductance is little, faster system response; Simultaneously slotless winding construction air gap is big, can reduce the influence of armature reaction significantly, motor is had operate steadily, characteristics such as overload capacity is strong, noise is low, reliable operation.
Shown in Figure 14 is the structural representation of traditional slotless configuration permagnetic synchronous motor.This motor is 8 utmost points, 6 loop constructions, and winding is for concentrating fractional slot winding, and 6 coils are uniformly distributed with at cylindrical stator inner surface unshakable in one's determination.The advantage of this winding is the end non-overlapping, so the end of winding is short, and insulation characterisitic is good, and the technology of motor is simple, easy to manufacture.But the reactance of this structure slotless configuration magneto is little and can not adjust, and when adopting PWM type power amplifier to drive, current harmonics is big, so the torque ripple of motor is big; In order to reduce current harmonics, need be between winding and power amplifier series inductance, thereby the cost of system is high, volume is big, reliability is low; The winding technique for fixing is complicated, cost is high, and the loss of winding is big, temperature rise, and the effective air gap of motor is big, torque density is low.
Summary of the invention
The present invention is big for the volume that solves existing slotless configuration magneto and exist, complex process, winding loss is big and torque density is low problem, proposes the multi-phase permanent motor scheme that leakage reactance can be adjusted structure.
The present invention provides the leakage reactance of following four kinds of structures can adjust the multi-phase permanent motor of structure:
First kind of structure:
Leakage reactance can be adjusted the multi-phase permanent motor of structure, and this magneto is the cylinder electric rotating machine, and it comprises stator and rotor, is air gap between said rotor and the stator; Stator comprises stator core, stator winding and casing, and said stator also comprises coil rack, and said stator core is an annular, and the inner surface of stator core is smooth; The outer surface of said stator core is opened groove vertically, and this groove is a stator core slot, is evenly distributed with km core slots at the outer surface of stator core along circumference; Hookup wire ring framework on the inwall of stator core, coil rack is made up of a thin wall cylinder and km way-board, wherein; K is a natural number, and m is the number of phases of stator winding.Said way-board is a strip; Km way-board is fixed on the thin wall cylinder inboard radially; Each way-board plane, place and motor axially parallel form a wire casing between two adjacent way-boards, the lateral wall of thin wall cylinder is fixed on the inner surface of stator core; Armature winding is made up of km coil, and an effective edge of each coil is embedded in the wire casing of coil rack vertically, another effective edge embed with the radially corresponding iron core slot of this wire casing in, said stator winding is used the epoxy resin embedding
Second kind of structure:
Leakage reactance can be adjusted the multi-phase permanent motor of structure, and this magneto is the cylinder electric rotating machine, and it comprises stator and rotor; Be air gap between said rotor and the stator, stator comprises stator core, stator winding and casing, and said stator also comprises coil rack; Said stator core is an annular, and the inner surface of stator core is smooth, and the outer surface of said stator core is opened groove vertically; This groove is a stator core slot, is evenly distributed with km core slots along circumference, hookup wire ring framework on the inwall of stator core at the outer surface of stator core; Coil rack is made up of a thin wall cylinder and km way-board, and wherein, k is a natural number; M is the number of phases of stator winding, and said way-board is a strip, and km way-board is fixed on the thin wall cylinder inboard radially; Each way-board plane, place and motor axially parallel form a wire casing between two adjacent way-boards, the lateral wall of thin wall cylinder is fixed on the inner surface of stator core; Armature winding is made up of coil km, and an effective edge of every pair of coil is embedded in the wire casing of coil rack vertically, another effective edge embed with the radially corresponding iron core slot of this wire casing in; One of them coil is positioned at trench bottom, and another coil is positioned at its top, and the cross section of every pair of coil is a section of annulus; Said cross section perpendicular to motor shaft to, this equates area of the cross section of two coils in the coil, and is positioned at the coil next-door neighbour left side cell wall of bottom; Be positioned at the coil next-door neighbour right side cell wall at top; This does not belong to same phase to coil, and two adjacent in adjacent wire casing coils belong to same phase, and said stator winding is used the epoxy resin embedding.
The third structure:
Leakage reactance can be adjusted the multi-phase permanent motor of structure, and this magneto is the cylinder electric rotating machine, and it comprises stator and rotor; Be air gap between said rotor and the stator, stator comprises stator core, stator winding and casing, and said stator also comprises coil rack; Said stator core is an annular, and the inner surface of stator core is smooth, and the outer surface of said stator core is opened groove vertically; This groove is a stator core slot, is evenly distributed with 2km core slots along circumference, hookup wire ring framework on the inwall of stator core at the outer surface of stator core; Coil rack is made up of a thin wall cylinder and 2km way-board, and wherein, k is a natural number; M is the number of phases of stator winding, and said way-board is a strip, and 2km way-board is fixed on the thin wall cylinder inboard radially; Each way-board plane, place and motor axially parallel form a wire casing between two adjacent way-boards, the lateral wall of thin wall cylinder is fixed on the inner surface of stator core; Including coil and a plurality of number of turn that a plurality of numbers of turn are 2N in the armature winding is the coil of N, and wherein N is not 0 natural number, and q=2k/2p, p are the number of pole-pairs of motor; The 1st, (q+1) are individual, (2q+1) is individual, (3q+1) is individual ..., embed that two numbers of turn are arranged is the effective edge of the coil of N in (2km-1) individual wire casing; In addition two effective edges of the coil that these two numbers of turn are N embed with the radially corresponding core slots of this wire casing in, the coil side of the coil that these two numbers of turn are N belongs to different phases respectively; Embed all in remaining wire casing that the number of turn is arranged is the effective edge of the coil of 2N; In same extremely corresponding position; Coil in inner coil in the 1st wire casing or upper coil, the 2nd wire casing ..., the coil in the q wire casing, the upper coil in (q+1) individual wire casing or inner coil series connection constitute first utmost point phase winding that belongs to same phase, the utmost point phase winding serial or parallel connection that will belong to same phase is formed a phase winding; Said stator winding is used the epoxy resin embedding
The 4th kind of structure:
Leakage reactance can be adjusted the multi-phase permanent motor of structure, these magneto linear electric motors, and it comprises primary and secondary, is air gap between the said primary and secondary; Elementary elementary iron core, elementary winding and the thrust output board of comprising is characterized in that it also comprises coil rack; Said elementary iron core is plate shaped, and the air gap side of elementary iron core is a smooth flat, and the air gap side surface edge that deviates from of said elementary iron core laterally has groove; Said groove is a core slots; Surface at elementary iron core is evenly distributed with km core slots along the primary and secondary direction of relative movement, and k is a natural number, and m is the winding number of phases; Coil rack is made up of a thin plate and km+1 way-board; The one side of thin plate is fixed on the air gap side surface of armature core; The another side of said thin plate is km+1 way-board fixedly; A said km+1 way-board is parallel to each other and evenly distributes along the primary and secondary direction of relative movement, forms wire casing between adjacent two way-boards, and a said km wire casing is corresponding with km core slots respectively; Elementary winding is made up of km coil, and effective edge of each coil embeds in the wire casing, its another effective edge be embedded in the corresponding core slots of this wire casing in; The fluting side of said elementary iron core is fixed on the thrust output board.Leakage reactance according to claim 1 can be adjusted the multi-phase permanent motor of structure, it is characterized in that, the material of said coil rack is the nonmetallic materials of insulation
The multi-phase permanent motor that leakage reactance of the present invention can be adjusted structure has following characteristics:
(1) through optimizing and revising the rear of core grooved; Can require to confirm motor leakage reactance size according to drive system; Thereby can realize that optimum winding current harmonic wave suppresses, both can reduce the motor torque fluctuation, can reduce stator copper loss and rotor eddy current loss again, improve electric efficiency;
(2) because half the winding effective edge embeds in the rear of core groove, and therefore, the effective air gap of motor is little, air gap flux density is high, and the torque density and the power density of motor are big;
(3) because stator core air gap side does not have teeth groove, therefore eliminate location torque, reduced the torque ripple of motor;
(4) since coil on iron core, therefore, the structural strength of winding and copper factor height, the positioning accuracy of winding is good;
(5) owing to do not overlap between the coil, so the insulation of winding is easy, and reliability is high; Winding overhang is short, and winding resistance and winding copper loss are low;
(6) can adopt air blast cooling or liquid cooling technology that coil side in the groove of stator core back is directly cooled off, therefore, good cooling results, the temperature rise of motor is low, the life-span is long.
Description of drawings
Fig. 1 is the structural representation that embodiment one described a kind of leakage reactance can be adjusted the multi-phase permanent motor of structure.Fig. 2 is that the said magneto of Fig. 1 removes casing structural representation afterwards.Fig. 3 is the structural representation that the leakage reactance of embodiment one described a kind of open slot structure can be adjusted the multi-phase permanent motor of structure.Fig. 4 is the structural representation that the leakage reactance of embodiment one described a kind of semi-open slot structure can be adjusted the multi-phase permanent motor of structure.Fig. 5 is the stator core of embodiment one described a kind of magneto and the structural representation after the bobbin combination.Fig. 6 is the structural representation that embodiment two described a kind of leakage reactances can be adjusted the multi-phase permanent motor of structure.Fig. 7 is the structural representation that embodiment three described a kind of leakage reactances can be adjusted the multi-phase permanent motor of structure.Fig. 8 is that motor shown in Figure 7 removes casing structural representation afterwards.Fig. 9 is the structural representation that embodiment three described a kind of leakage reactances can be adjusted the multi-phase permanent motor of structure.Figure 10 is the structural representation that embodiment three described a kind of leakage reactances can be adjusted the multi-phase permanent motor of structure.Figure 11 is the sketch map of the segmental structure of the motor stator described in embodiment one, two or three.Figure 12 is embodiment seven described a kind of structural representations that move secondary flat plate type linear motor.Figure 13 is embodiment seven described a kind of structural representations that move elementary flat plate type linear motor.Figure 14 is the structural representation of traditional slotless configuration permagnetic synchronous motor.
Embodiment
Embodiment one, referring to this execution mode of Fig. 1 to 5 explanation.The multi-phase permanent motor that the described a kind of leakage reactance of this execution mode can be adjusted structure is the cylinder electric rotating machine, and it comprises stator and rotor, is air gap between said rotor and the stator; Stator comprises stator core 1, stator winding and casing 2, and said stator also comprises coil rack 3, and said stator core is an annular; The inner surface of stator core is smooth, and the outer surface of said stator core is opened groove vertically, and this groove is stator core slot 1-1; Outer surface in stator core is evenly distributed with km core slots along circumference, hookup wire ring framework 3 on the inwall of stator core, and coil rack is made up of a thin wall cylinder 3-1 and km way-board 3-2; Wherein, K is a natural number, and m is the number of phases of stator winding.Said way-board 3-2 is a strip; Km way-board 3-2 is fixed on thin wall cylinder 3-1 inboard radially; Each way-board 3-2 plane, place and motor axially parallel form a wire casing 3-3 between two adjacent way-boards, the lateral wall of thin wall cylinder 3-1 is fixed on the inner surface of stator core; Armature winding is made up of km coil, and an effective edge of each coil is embedded in the wire casing 3-3 of coil rack 3 vertically, another effective edge embed with the radially corresponding iron core slot 1-1 of this wire casing in, said stator winding is irritated 4 envelopes with epoxy resin.
Km in this an execution mode core slots is corresponding one by one with km wire casing, and the center line of corresponding core slots and wire casing is positioned on the same radius.
When km=12, the described magneto of this execution mode is referring to shown in Fig. 1 and 2.
Embodiment two, referring to shown in Fig. 6 and 7 explanation this execution mode.The multi-phase permanent motor that the described leakage reactance of this execution mode can be adjusted structure is the cylinder electric rotating machine, and it comprises stator and rotor, is air gap between said rotor and the stator; Stator comprises stator core 1, stator winding and casing 2, and said stator also comprises coil rack 3, and said stator core is an annular; The inner surface of stator core is smooth, and the outer surface of said stator core is opened groove vertically, and this groove is stator core slot 1-1; Outer surface in stator core is evenly distributed with km core slots along circumference, hookup wire ring framework 3 on the inwall of stator core, and coil rack is made up of a thin wall cylinder 3-1 and km way-board 3-2; Wherein, k is a natural number, and m is the number of phases of stator winding; Said way-board 3-2 is a strip, and km way-board 3-2 is fixed on thin wall cylinder 3-1 inboard radially, each way-board 3-2 plane, place and motor axially parallel; Form a wire casing 3-3 between two adjacent way-boards, the lateral wall of thin wall cylinder 3-1 is fixed on the inner surface of stator core; Armature winding is made up of coil km, and an effective edge of every pair of coil is embedded in the wire casing 3-3 of coil rack 3 vertically, another effective edge embed with the radially corresponding iron core slot 1-1 of this wire casing in; One of them coil is positioned at trench bottom; Another coil is positioned at its top, and the cross section of every pair of coil is a section of annulus, said cross section perpendicular to motor shaft to; This area to the cross section of two coils in the coil equates; And be positioned at the coil next-door neighbour left side cell wall of bottom, be positioned at the coil next-door neighbour right side cell wall at top, this does not belong to same phase to coil; Be positioned at adjacent wire casing and two adjacent coils belong to same phase, said stator winding is used the epoxy resin embedding.
Km in this an execution mode core slots is corresponding one by one with km wire casing, and the center line of corresponding core slots and wire casing is positioned on the same radius.
When km=12, the described magneto of this execution mode is referring to shown in Fig. 6 and 7.
Embodiment three, referring to Fig. 7,8,9 and 10 the explanation these execution modes.The multi-phase permanent motor that the described leakage reactance of this execution mode can be adjusted structure is the cylinder electric rotating machine, and it comprises stator and rotor, is air gap between said rotor and the stator; Stator comprises stator core 1, stator winding and casing 2, and said stator also comprises coil rack 3, and said stator core is an annular; The inner surface of stator core is smooth, and the outer surface of said stator core is opened groove vertically, and this groove is stator core slot 1-1; Outer surface in stator core is evenly distributed with 2km core slots along circumference, hookup wire ring framework 3 on the inwall of stator core, and coil rack is made up of a thin wall cylinder 3-1 and 2km way-board 3-2; Wherein, k is a natural number, and m is the number of phases of stator winding; Said way-board 3-2 is a strip, and 2km way-board 3-2 is fixed on thin wall cylinder 3-1 inboard radially, each way-board 3-2 plane, place and motor axially parallel; Form a wire casing 3-3 between two adjacent way-boards, the lateral wall of thin wall cylinder 3-1 is fixed on the inner surface of stator core; Including coil and a plurality of number of turn that a plurality of numbers of turn are 2N in the armature winding is the coil of N, and wherein N is not 0 natural number, and q=2k/2p, p are the number of pole-pairs of motor; The 1st, q+1,2q+1,3q+1 ..., embed that two numbers of turn are arranged is the effective edge of the coil of N in the 2km-1 wire casing; In addition two effective edges of the coil that these two numbers of turn are N embed with the radially corresponding core slots of this wire casing in, the coil side of the coil that these two numbers of turn are N belongs to different phases respectively; Embed all in remaining wire casing that the number of turn is arranged is the effective edge of the coil of 2N; In same extremely corresponding position; Coil in inner coil in the 1st wire casing or upper coil, the 2nd wire casing ..., the coil in the q wire casing, the upper coil in the q+1 wire casing or inner coil series connection constitute first utmost point phase winding that belongs to same phase, the utmost point phase winding serial or parallel connection that will belong to same phase is formed a phase winding; Said stator winding is used the epoxy resin embedding.
Armature winding in this execution mode is according to differing (360 °/m) principle of electrical degree are confirmed the winding annexation of each phase between each phase winding.
Described in this execution mode in same extremely corresponding position; Coil in inner coil in the 1st wire casing or upper coil, the 2nd wire casing ..., the coil in the q wire casing, the upper coil in the q+1 wire casing or the inner coil series connection implication that constitutes first utmost point phase winding that belongs to same phase is: at first extremely down; Inner coil in the 1st coil rack groove or upper coil, the 2nd coil ..., upper coil or inner coil in the q coil, a q+1 groove belong to same phase; It for example is the A phase; First each coil under extremely first utmost point that constitutes the A phase that is together in series is organized mutually; And the like, can obtain other each extremely following each utmost point of A phase and organize mutually, organize each utmost point of A phase mutually to be together in series or parallel and can obtain the A phase winding.According to differing (360 °/m) principle of electrical degree can obtain the winding annexation of all the other phases between each phase winding.
The described 2km of this an execution mode core slots is corresponding one by one with 2km wire casing, and the center line of corresponding core slots and wire casing is positioned on the same radius.
Fig. 9 and 10 is two kinds of instantiations of this execution mode; State when the coil that wherein two numbers of turn are N among Fig. 9 embeds in the same groove is: one of them number of turn is that the coil of N is positioned at bottom land; Another position on it, the contact-making surface of two coils is the arc surface that is parallel to casing surface.The state that the coil that two numbers of turn are N among Figure 10 embeds in the same groove is: it is low that the bottom of one of them coil is positioned at groove; A side of this coil occupies a side of place groove; The axial cross section of the coil that two numbers of turn are N is subtriangular, and two subtriangular total lines are sinusoidal segments or the cosine curve section between straight line or 0 °～90 °.
In embodiment one, the two or three described magnetoes, rotor comprises permanent magnet and yoke structure.
In embodiment one, the two or three described magnetoes, can also be inner rotor motor both for external rotor.
In embodiment one, the two or three described magnetoes, be provided with the cooling water pipe that is used to cool off between stator and the casing, this cooling water pipe can be embedded in the stator outer surface.
In embodiment one, the two or three described magnetoes, inner surface of stator also can be slotted vertically, and then forms the coil groove, like this, can not use coil rack 3.
In embodiment one, the two or three described magnetoes, stator core is the circumferential sectors structure, i.e. stator core along the circumferential direction is combined into a cylindrical iron core by plurality of sections camber iron core, referring to shown in Figure 11.
In embodiment one, the two or three described magnetoes, the material of casing 2 is nonmagnetic substances.Completion embeds armature core behind the winding and is installed in the columnar casing that is made up of the high-strength nonmagnetic material, has simplified the motor manufacture craft.
Embodiment four, this execution mode are the further qualifications that can adjust the multi-phase permanent motor of structure to embodiment three described leakage reactances; In this execution mode; In the wire casing and core slots of the coil that it is N that embedding has two numbers of turn; A coil in the coil that said two numbers of turn are N is positioned at wire casing bottom, and another is positioned at the top of wire casing, and two coils are combined closely and filled full place wire casing.
Embodiment five, this execution mode are the further qualifications that can adjust the multi-phase permanent motor of structure to embodiment three or four described leakage reactances; In this execution mode; The area of the cross section of the coil that two numbers of turn that are arranged in same wire casing are N equates, plane, said cross section place perpendicular to motor shaft to.
Embodiment six, this execution mode are the further qualifications that can adjust the multi-phase permanent motor of structure to embodiment five described leakage reactances; In this execution mode, the cross section of the coil that two numbers of turn that are arranged in same wire casing are N is the part of the annulus in the center of circle for the center with motor shaft.Referring to shown in Figure 9.
Embodiment seven, this execution mode are the further qualifications that can adjust the multi-phase permanent motor of structure to embodiment five described leakage reactances; In this execution mode; The cross section of two coils in the coil rack groove is similar leg-of-mutton shapes, and two similar triangles of two coils are incorporated into and just in time take a groove together.In the shape that said similar triangle is, two leg-of-mutton common edge of class both can be straightway, also can be sinusoidal segments between 0 °～90 ° or cosine curve section.
Embodiment eight, referring to Figure 12 and 13 the explanation these execution modes.The multi-phase permanent motor that the described leakage reactance of this execution mode can be adjusted structure is linear electric motors, and it comprises primary and secondary, is air gap between the said primary and secondary; Elementary elementary iron core, elementary winding and the thrust output board of comprising, it also comprises coil rack, said elementary iron core is plate shaped; The air gap side of elementary iron core is a smooth flat; The air gap side surface edge that deviates from of said elementary iron core laterally has groove, and said groove is a core slots, is evenly distributed with km core slots on the surface of elementary iron core along the primary and secondary direction of relative movement; K is a natural number, and m is the winding number of phases; Coil rack is made up of a thin plate and km+1 way-board; The one side of thin plate is fixed on the air gap side surface of armature core; The another side of said thin plate is km+1 way-board fixedly; A said km+1 way-board is parallel to each other and evenly distributes along the primary and secondary direction of relative movement, forms wire casing between adjacent two way-boards, and a said km wire casing is corresponding with km core slots respectively; Elementary winding is made up of km coil, and effective edge of each coil embeds in the wire casing, its another effective edge be embedded in the corresponding core slots of this wire casing in; The fluting side of said elementary iron core is fixed on the thrust output board.Leakage reactance according to claim 1 can be adjusted the multi-phase permanent motor of structure, it is characterized in that, the material of said coil rack is the nonmetallic materials of insulation.
In this execution mode, thrust output board nonmagnetic substance.
Embodiment nine, this execution mode are the further qualifications that can adjust the multi-phase permanent motor of structure to embodiment seven described leakage reactances, and in this execution mode, said motor is moving elementary or moving secondary structure.
Embodiment ten, this execution mode are the further qualifications that can adjust the multi-phase permanent motor of structure to embodiment one, two, three or seven described leakage reactances; In this execution mode, the grooved of the stator core slot 1-1 of institute is an open slot, remain silent groove or semi-open slot.
In practical application, can change the leakage reactance of motor through the grooved of iron core slot 1-1 is set; For example: when using open slot; The leakage reactance of motor is smaller, when the needs leakage reactance is bigger, can make the grooved of core slots into semi-open slot; When the form of groove was remained silent in employing, leakage reactance was maximum situation.
Embodiment 11, this execution mode are the further qualifications that can adjust the multi-phase permanent motor of structure to embodiment one, two, three or seven described leakage reactances; In this execution mode; The grooved of said nail iron core slot 1-1 is open slot or semi-enclosed slot; At the opening part of each iron core slot 1-1, confuse poured with epoxy resin by Magnaglo and seal.
In core slots, fill the epoxy resin that is mixed with Magnaglo in this execution mode, can reach the purpose of leakage permeance in the adjustment groove, that is: can change the leakage permeance in the groove through the content of adjustment Magnaglo, and then the adjustment leakage reactance.For example: the content of Magnaglo is many more, and leakage reactance is just more little.Be only to adopt Magnaglo to fill core slots in this execution mode.
The leakage reactance that the present invention proposes can be adjusted the multi-phase permanent motor scheme of structure, both has been applicable to integer groove winding, also is applicable to fractional slot winding; Both be applicable to and often led winding, also be applicable to the superconduction winding, both be applicable to motor; Be applicable to generator again, both be applicable to surperficial PM rotor, also be applicable to embedded PM rotor and Halbach PM rotor; Both be applicable to monolateral preliminary linear motor, be applicable to bilateral preliminary linear motor again.
Claims (10)
1. leakage reactance can be adjusted the multi-phase permanent motor of structure, and this magneto is the cylinder electric rotating machine, and it comprises stator and rotor; Be air gap between said rotor and the stator, stator comprises stator core (1), stator winding and casing (2), it is characterized in that; Said stator also comprises coil rack (3), and said stator core is an annular, and the inner surface of stator core is smooth; The outer surface of said stator core is opened groove vertically, and this groove is stator core slot (1-1), is evenly distributed with km core slots at the outer surface of stator core along circumference; Hookup wire ring framework (3) on the inwall of stator core, coil rack is made up of a thin wall cylinder (3-1) and km way-board (3-2), wherein; K is a natural number, and m is the number of phases of stator winding.Said way-board (3-2) is a strip; Km way-board (3-2) is fixed on thin wall cylinder (3-1) inboard radially; Each way-board (3-2) plane, place and motor axially parallel; Form a wire casing (3-3) between two adjacent way-boards, the lateral wall of thin wall cylinder (3-1) is fixed on the inner surface of stator core; Armature winding is made up of km coil; An effective edge of each coil is embedded in the wire casing (3-3) of coil rack (3) vertically; Another effective edge embeds in the iron core slot radially corresponding with this wire casing (1-1), and said stator winding is used the epoxy resin embedding.
2. leakage reactance can be adjusted the multi-phase permanent motor of structure, and this magneto is the cylinder electric rotating machine, and it comprises stator and rotor; Be air gap between said rotor and the stator, stator comprises stator core (1), stator winding and casing (2), it is characterized in that; Said stator also comprises coil rack (3), and said stator core is an annular, and the inner surface of stator core is smooth; The outer surface of said stator core is opened groove vertically, and this groove is stator core slot (1-1), is evenly distributed with km core slots at the outer surface of stator core along circumference; Hookup wire ring framework (3) on the inwall of stator core, coil rack is made up of a thin wall cylinder (3-1) and km way-board (3-2), wherein; K is a natural number, and m is the number of phases of stator winding, and said way-board (3-2) is a strip; Km way-board (3-2) is fixed on thin wall cylinder (3-1) inboard radially; Each way-board (3-2) plane, place and motor axially parallel form a wire casing (3-3) between two adjacent way-boards, the lateral wall of thin wall cylinder (3-1) is fixed on the inner surface of stator core; Armature winding is made up of coil km, and an effective edge of every pair of coil is embedded in the wire casing (3-3) of coil rack (3) vertically, and another effective edge embeds in the iron core slot radially corresponding with this wire casing (1-1); One of them coil is positioned at trench bottom; Another coil is positioned at its top, and the cross section of every pair of coil is a section of annulus, said cross section perpendicular to motor shaft to; This area to the cross section of two coils in the coil equates; And be positioned at the coil next-door neighbour left side cell wall of bottom, be positioned at the coil next-door neighbour right side cell wall at top, this does not belong to same phase to coil; Be positioned at adjacent wire casing and two adjacent coils belong to same phase, said stator winding is used the epoxy resin embedding.
3. leakage reactance can be adjusted the multi-phase permanent motor of structure, and this magneto is the cylinder electric rotating machine, and it comprises stator and rotor; Be air gap between said rotor and the stator, stator comprises stator core (1), stator winding and casing (2), it is characterized in that; Said stator also comprises coil rack (3), and said stator core is an annular, and the inner surface of stator core is smooth; The outer surface of said stator core is opened groove vertically, and this groove is stator core slot (1-1), is evenly distributed with 2km core slots at the outer surface of stator core along circumference; Hookup wire ring framework (3) on the inwall of stator core, coil rack is made up of a thin wall cylinder (3-1) and 2km way-board (3-2), wherein; K is a natural number, and m is the number of phases of stator winding, and said way-board (3-2) is a strip; 2km way-board (3-2) is fixed on thin wall cylinder (3-1) inboard radially; Each way-board (3-2) plane, place and motor axially parallel form a wire casing (3-3) between two adjacent way-boards, the lateral wall of thin wall cylinder (3-1) is fixed on the inner surface of stator core; Including coil and a plurality of number of turn that a plurality of numbers of turn are 2N in the armature winding is the coil of N, and wherein N is not 0 natural number, and q=2k/2p, p are the number of pole-pairs of motor; The 1st, q+1,2q+1,3q+1 ..., embed that two numbers of turn are arranged is the effective edge of the coil of N in the 2km-1 wire casing; In addition two effective edges of the coil that these two numbers of turn are N embed with the radially corresponding core slots of this wire casing in, the coil side of the coil that these two numbers of turn are N belongs to different phases respectively; Embed all in remaining wire casing that the number of turn is arranged is the effective edge of the coil of 2N; In same extremely corresponding position; Coil in inner coil in the 1st wire casing or upper coil, the 2nd wire casing ..., the coil in the q wire casing, the upper coil in the q+1 wire casing or inner coil series connection constitute first utmost point phase winding that belongs to same phase, the utmost point phase winding serial or parallel connection that will belong to same phase is formed a phase winding; Said stator winding is used the epoxy resin embedding.
4. leakage reactance according to claim 3 can be adjusted the multi-phase permanent motor of structure; It is characterized in that; In the wire casing and core slots of the coil that it is N that embedding has two numbers of turn; A coil in the coil that said two numbers of turn are N is positioned at wire casing bottom, and another is positioned at the top of wire casing, and two coils are combined closely and filled full place wire casing.
Can adjust the multi-phase permanent motor of structure according to claim 3 or 4 described leakage reactances, it is characterized in that, the area of the cross section of the coil that two numbers of turn that are arranged in same wire casing are N equates, plane, said cross section place perpendicular to motor shaft to.
5. can adjust the multi-phase permanent motor of structure according to claim 1,2 or 3 described leakage reactances, it is characterized in that, be provided with the cooling water pipe that is used to cool off between stator and the casing.
6. can adjust the multi-phase permanent motor of structure according to claim 1,2 or 3 described leakage reactances, it is characterized in that stator core is the circumferential sectors structure.
7. leakage reactance can be adjusted the multi-phase permanent motor of structure, these magneto linear electric motors, and it comprises primary and secondary, is air gap between the said primary and secondary; Elementary elementary iron core, elementary winding and the thrust output board of comprising is characterized in that it also comprises coil rack; Said elementary iron core is plate shaped, and the air gap side of elementary iron core is a smooth flat, and the air gap side surface edge that deviates from of said elementary iron core laterally has groove; Said groove is a core slots; Surface at elementary iron core is evenly distributed with km core slots along the primary and secondary direction of relative movement, and k is a natural number, and m is the winding number of phases; Coil rack is made up of a thin plate and km+1 way-board; The one side of thin plate is fixed on the air gap side surface of armature core; The another side of said thin plate is km+1 way-board fixedly; A said km+1 way-board is parallel to each other and evenly distributes along the primary and secondary direction of relative movement, forms wire casing between adjacent two way-boards, and a said km wire casing is corresponding with km core slots respectively; Elementary winding is made up of km coil, and effective edge of each coil embeds in the wire casing, its another effective edge be embedded in the corresponding core slots of this wire casing in; The fluting side of said elementary iron core is fixed on the thrust output board.
8. leakage reactance according to claim 1 can be adjusted the multi-phase permanent motor of structure, it is characterized in that, the material of said coil rack is the nonmetallic materials of insulation.
9. leakage reactance according to claim 7 can be adjusted the multi-phase permanent motor of structure, it is characterized in that, said motor is moving elementary or moving secondary structure.
10. can adjust the multi-phase permanent motor of structure according to claim 1,2,3 or 7 described leakage reactances, it is characterized in that, confuse poured with epoxy resin by Magnaglo in said each iron core slot (1-1) and fill.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101419418A CN102664504A (en) | 2012-05-09 | 2012-05-09 | Polyphase permanent magnet motor with leakage reactance adjustable structure |
| PCT/CN2013/074773 WO2013166919A1 (en) | 2012-05-09 | 2013-04-26 | Multiphase permanent magnet motor having leakage reactance adjustable structure |
| JP2015510618A JP6215913B2 (en) | 2012-05-09 | 2013-04-26 | Multi-phase permanent magnet motor with adjustable leakage inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101419418A CN102664504A (en) | 2012-05-09 | 2012-05-09 | Polyphase permanent magnet motor with leakage reactance adjustable structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102664504A true CN102664504A (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101419418A Pending CN102664504A (en) | 2012-05-09 | 2012-05-09 | Polyphase permanent magnet motor with leakage reactance adjustable structure |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6215913B2 (en) |
| CN (1) | CN102664504A (en) |
| WO (1) | WO2013166919A1 (en) |
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| WO2013166919A1 (en) * | 2012-05-09 | 2013-11-14 | 哈尔滨工业大学 | Multiphase permanent magnet motor having leakage reactance adjustable structure |
| CN107623395A (en) * | 2017-10-28 | 2018-01-23 | 河南理工大学 | The mode of connection and permagnetic synchronous motor of a kind of motor stator winding |
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| WO2013166919A1 (en) * | 2012-05-09 | 2013-11-14 | 哈尔滨工业大学 | Multiphase permanent magnet motor having leakage reactance adjustable structure |
| CN107786062A (en) * | 2016-08-24 | 2018-03-09 | 南京理工大学 | A kind of segmented cylinder-type transverse-flux linear motor |
| CN107786062B (en) * | 2016-08-24 | 2019-07-16 | 南京理工大学 | A kind of segmented cylinder-type transverse-flux linear motor |
| CN107623395A (en) * | 2017-10-28 | 2018-01-23 | 河南理工大学 | The mode of connection and permagnetic synchronous motor of a kind of motor stator winding |
| CN108418376A (en) * | 2017-12-27 | 2018-08-17 | 五羊—本田摩托（广州）有限公司 | A kind of motor of high power density |
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| CN108110931A (en) * | 2018-01-25 | 2018-06-01 | 博远机电（嘉兴）有限公司 | Stator and motor |
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| CN109193980A (en) * | 2018-09-11 | 2019-01-11 | 广州市昊志机电股份有限公司 | The stator structure and big induction permanent magnet synchronous motor of big induction permanent magnet synchronous motor |
| CN109660047A (en) * | 2019-02-21 | 2019-04-19 | 郑州大学 | One kind can covert double three-phase permanent-magnetic motor stator Circular Winding and its variphase method |
| CN112366845A (en) * | 2020-12-17 | 2021-02-12 | 哈尔滨理工大学 | High-efficiency back-wound winding tooth-groove-free permanent magnet synchronous motor |
| CN117118110A (en) * | 2023-10-25 | 2023-11-24 | 中国科学院宁波材料技术与工程研究所 | Large-inductance tooth-slot-free propulsion motor |
| CN117118110B (en) * | 2023-10-25 | 2024-05-14 | 中国科学院宁波材料技术与工程研究所 | Large-inductance tooth-slot-free propulsion motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6215913B2 (en) | 2017-10-18 |
| WO2013166919A1 (en) | 2013-11-14 |
| JP2015516139A (en) | 2015-06-04 |
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Application publication date: 20120912 |