CN104836398A - Rotor magnetic concentrating double-stator transverse magnetic field permanent magnet synchronous motor - Google Patents

Rotor magnetic concentrating double-stator transverse magnetic field permanent magnet synchronous motor Download PDF

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Publication number
CN104836398A
CN104836398A CN201510274802.6A CN201510274802A CN104836398A CN 104836398 A CN104836398 A CN 104836398A CN 201510274802 A CN201510274802 A CN 201510274802A CN 104836398 A CN104836398 A CN 104836398A
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China
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rotor
iron core
shaped
stator iron
stator
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CN104836398B (en
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郑萍
朱少洪
隋义
程路明
周承豫
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Harbin Institute of Technology
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Harbin Institute of Technology
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K16/00Machines with more than one rotor or stator
    • H02K16/04Machines with one rotor and two stators
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/16Stator cores with slots for windings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets

Abstract

The invention relates to a rotor magnetic concentrating double-stator transverse magnetic field permanent magnet synchronous motor, belongs to the field of motors, and aims to solve the problems of complex structure, low space utilization ratio, low winding utilization ratio, low torque density and low power density in a conventional transverse structure motor. The rotor magnetic concentrating double-stator transverse magnetic field permanent magnet synchronous motor comprises stators, a rotor, a shell and a rotor bracket, wherein the stators comprises an outer stator and an inner stator; the rotor is positioned between the outer stator and an inner stator, and is fixed on the rotor bracket; a first working gap is formed between the outer stator and the rotor; a second working gap is formed between the inner stator and the rotor; the outer stator comprises an outer stator iron core and an outer stator armature winding; the outer stator iron core comprises p pairs of U-shaped outer stator iron cores which are staggered bilaterally; the inner stator comprises an inner stator armature winding, an inner stator iron core, a non-magnetic inner stator sleeve and an inner stator shaft; the inner stator iron core comprises p pairs of U-shaped inner stator iron cores which are staggered bilaterally; and the rotor comprises 2p first permanent magnets, 2p second permanents, a rotor iron core and a revolving shaft.

Description

Rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor
Technical field
The present invention relates to the magneto of a kind of high power density and high torque density, belong to machine field.
Background technology
Compared with electro-magnetic motor, it is simple that magneto, particularly rare-earth permanent-magnet electric machine have structure, reliable; Volume is little, and quality is light; Loss is little, and efficiency is high; The shape and size of motor versatile and flexiblely can wait remarkable advantage, and thus range of application is very extensive, almost throughout the every field of Aero-Space, national defence, industrial and agricultural production and daily life.Rotor structure for permanent magnet motor is divided into according to permanent magnet magnetic line structure: surface-mount type and magneticfocusing.Rotor adopts magneticfocusing structure, and compared with surface-mounted rotor structure, in air gap, effective harmonic flux density can improve greatly, can improve the power density of motor, also can improve the power factor of motor simultaneously.
Traditional radial flux and axial-flux electric machine, its circuit and magnetic circuit, in same plane, exist and compete mutually, when adding heavy electric power load, need the cross section strengthening coil, i.e. groove area, so the width of tooth will reduce, saturated in order to prevent, and just must reduce magnetic loading.Vice versa.Therefore the power density of motor is difficult to improve.
In order to improve power density, people adopt transverse magnetic flux structural electromotor, and its electric loading and magnetic loading are structurally full decoupled, and not coupling between every phase magnetic circuit, can independent analysis and control.When same volume, torque density and power density can be improved by the number of pole-pairs of expanded motor, be specially adapted to the occasion of low-speed high-torque direct driving.
But traditional transversary motor, complex structure, space availability ratio and winding utilization on the low side, torque density and power density low.
Summary of the invention
The present invention seeks to solve traditional transversary motor, complex structure, space availability ratio and winding utilization on the low side, torque density and the low problem of power density, provide a kind of rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor.
Rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor of the present invention, it comprises stator, rotor, shell and rotor field spider, and stator comprises external stator and internal stator, and rotor between external stator and internal stator, and is fixed on rotor field spider; Form the first working gas gap between external stator and rotor, between internal stator and rotor, form the second working gas gap;
External stator comprises external stator iron core and external stator armature winding, external stator iron core comprises p, and the first U-shaped external stator is unshakable in one's determination and p the second U-shaped external stator is unshakable in one's determination, p the first U-shaped external stator iron core and p the second U-shaped external stator internal circular surfaces being along the circumferential direction alternately distributed on shell unshakable in one's determination, and the first U-shaped external stator is unshakable in one's determination and the second U-shaped external stator is unshakable in one's determination at the axial distance d that staggers; External stator armature winding is arranged in p the U-shaped region that the first U-shaped external stator is unshakable in one's determination and the individual second U-shaped external stator iron core of p is common;
Internal stator comprises internal stator armature winding, internal stator iron core, non-magnetic internal stator sleeve and internal stator axle, internal stator iron core comprises p the first U-shaped internal stator iron core and p the second U-shaped internal stator iron core, p the first U-shaped internal stator iron core and the individual second U-shaped internal stator iron core of p are along the circumferential direction alternately distributed on the outer round surface of non-magnetic internal stator sleeve, and the first U-shaped internal stator iron core and the second U-shaped internal stator iron core are at the distance d that axially staggers; Internal stator armature winding is arranged in p the first U-shaped internal stator iron core and the common U-shaped region of p the second U-shaped internal stator iron core; Non-magnetic internal stator sleeve is fixedly installed on internal stator axle;
Rotor comprises 2p block first permanent magnet, 2p block second permanent magnet, rotor core and rotating shaft, and rotor core comprises 2p centre position H type rotor core and 4p outer rectangular rotor core; 2p centre position H type rotor core is along the circumferential direction uniform, be respectively arranged with the first permanent magnet and the second permanent magnet between the left and right sides surface of each centre position H type rotor core and symmetrically arranged two outer rectangular rotor cores, these symmetrically arranged two outer rectangular rotor cores are fixed on rotor field spider; Rotor field spider is flexibly connected with internal stator axle by bearing, and rotor field spider is fixed in rotating shaft, and rotating shaft is flexibly connected with shell by bearing; The axle center of rotating shaft and internal stator axle is on same center line;
The outer rectangular rotor core radially aligned of the first U-shaped external stator iron core and side, the outer rectangular rotor core radially aligned of the first U-shaped internal stator iron core and symmetrical side, and axial width is equal.
The outer rectangular rotor core radially aligned of the second U-shaped external stator iron core and side, the outer rectangular rotor core radially aligned of the second U-shaped internal stator iron core and symmetrical side, and axial width is equal.
Advantage of the present invention:
1, the rotor of motor of the present invention adopts magneticfocusing structure, a pair permanent magnet is placed in iron core, the direction of magnetization is contrary, and permanent magnet magnetization direction in adjacent two rotor cores of circumferencial direction is contrary, in conjunction with adjacent two the stator core left sides of circumference, part the design feature of other symmetric arrays on the right side, the function that magnetic flux switches can be realized, avoid adjacent traditional horizontal magnetic field motor two rotor cores can only the situation of a corresponding stator core, improve space availability ratio, external stator and an internal stator iron core left side simultaneously, part the design feature of other symmetric arrays on the right side, epitrochanterian two adjacent permanent magnet can be utilized simultaneously, avoid permanent magnet non-productive work district, reduce the leakage field of magneticfocusing structure, improve the magnetic flux utilance of motor.
2, each stator core of motor of the present invention is measure-alike, and each rotor core size is also identical, and all can form with silicon steel plate packing.Any moment can make full use of permanent magnet, avoids permanent magnet non-productive work district, effectively can reduce the leakage flux of motor, improves torque density and the power density of motor.Therefore, the present invention is with a wide range of applications, can at wind power generation, electric automobile, the applications such as ship's electrical propulsion.
3, the stator armature winding of motor of the present invention is Circular Winding, is embedded in stator core groove, does not have end, effectively shortens the inefficient length of winding.Meanwhile, every phase external stator winding and internal stator winding can forward be composed in series a set of winding, also can be in parallel as double winding independent operating.In high-power driving electric system, adopt bimorph transducer winding, when gross power is constant, voltage or the current limit of driver electric power electronic switching device can be reduced, reduce system cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 (a) (b) is t 0motor main flux between moment, two adjacent two rotor units and external stator, internal stator, armature winding no power;
Fig. 5 (a) (b) is t 1motor main flux between moment, two adjacent two rotor units and external stator, internal stator, armature winding no power.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 to Fig. 5, rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor described in present embodiment, it comprises stator, rotor, shell 3 and rotor field spider 4, stator comprises external stator and internal stator, rotor between external stator and internal stator, and is fixed on rotor field spider 4; Form the first working gas gap between external stator and rotor, between internal stator and rotor, form the second working gas gap;
External stator comprises external stator unshakable in one's determination 5 and external stator armature winding 6, external stator iron core 5 comprises p the first U-shaped external stator 5-1 and p unshakable in one's determination the second U-shaped external stator 5-2 unshakable in one's determination, p the first U-shaped external stator 5-1 and p unshakable in one's determination the second U-shaped external stator 5-2 unshakable in one's determination is along the circumferential direction alternately distributed on the internal circular surfaces of shell 3, and the first U-shaped external stator 5-1 unshakable in one's determination and the second U-shaped external stator 5-2 unshakable in one's determination is at the distance d that axially staggers; External stator armature winding 6 is arranged in p the first U-shaped external stator 5-1 and p unshakable in one's determination U-shaped region that the second U-shaped external stator 5-2 unshakable in one's determination is common;
Internal stator comprises internal stator armature winding 9, internal stator iron core 10, non-magnetic internal stator sleeve 12 and internal stator axle 13, internal stator iron core 10 comprises p the first U-shaped internal stator iron core 10-1 and p the second U-shaped internal stator iron core 10-2, p the first U-shaped internal stator iron core 10-1 and p the second U-shaped internal stator iron core 10-2 is along the circumferential direction alternately distributed on the outer round surface of non-magnetic internal stator sleeve 12, and the first U-shaped internal stator iron core 10-1 and the second U-shaped internal stator iron core 10-2 is at the distance d that axially staggers; Internal stator armature winding 9 is arranged in the common U-shaped region of individual first U-shaped internal stator iron core 10-1 and p the second U-shaped internal stator iron core 10-2 of p; Non-magnetic internal stator sleeve 12 is fixedly installed on internal stator axle 13;
Rotor comprises 2p block first permanent magnet 7,2p block second permanent magnet 11, rotor core 8 and rotating shaft 1, and rotor core 8 comprises 2p centre position H type rotor core 8-1 and 4p outer rectangular rotor core 8-2; 2p centre position H type rotor core 8-1 is along the circumferential direction uniform, be respectively arranged with the first permanent magnet 7 and the second permanent magnet 11 between the left and right sides surface of each centre position H type rotor core 8-1 and symmetrically arranged two outer rectangular rotor core 8-2, these symmetrically arranged two outer rectangular rotor core 8-2 are fixed on rotor field spider 4; Rotor field spider 4 is flexibly connected with internal stator axle 13 by bearing 14, and rotor field spider is fixed in rotating shaft 1, and rotating shaft 1 is flexibly connected with shell 3 by bearing 2; The axle center of rotating shaft 1 and internal stator axle 13 is on same center line;
The outer rectangular rotor core 8-2 radially aligned of the first U-shaped external stator 5-1 unshakable in one's determination and side, the outer rectangular rotor core 8-2 radially aligned of the first U-shaped internal stator iron core 10-1 and symmetrical side, and axial width is equal.
The outer rectangular rotor core 8-2 radially aligned of the second U-shaped external stator 5-2 unshakable in one's determination and side, the outer rectangular rotor core 8-2 radially aligned of the second U-shaped internal stator iron core 10-2 and symmetrical side, and axial width is equal.
First permanent magnet 7 and the second permanent magnet 11 magnetize all vertically, first permanent magnet 7 of H type rotor core 8-1 both sides, same centre position is contrary with the magnetizing direction of the second permanent magnet 11, the magnetizing direction of adjacent two piece of first permanent magnet 7 of circumference is alternately contrary, and the magnetizing direction of adjacent two piece of second permanent magnet 11 of circumference is alternately contrary.
External stator unshakable in one's determination 5 and internal stator iron core 10 form by silicon steel plate packing.
The available non-magnet material of rectangular part in the middle of centre position H type rotor core 8-1 is made.
External stator armature winding 6 and internal stator armature winding 9 adopt Circular Winding.Be embedded in stator core groove, this winding does not have end, effectively shortens the inefficient length of winding.In high-power driving electric system, adopt bimorph transducer winding, when gross power is constant, voltage or the current limit of driver electric power electronic switching device can be reduced, reduce system cost.
Present embodiment is monophase machine, and number of poles is 2p, and present embodiment motor can make generator and use, namely, when prime mover driven rotor rotates, stator armature winding output AC electricity, through rectification, boosting, the circuit such as inversion, directly to load supplying or can carry out micro-grid.
Present embodiment rotor adopts magneticfocusing structure.A pair permanent magnet is placed in iron core, and permanent magnet magnetization direction in adjacent two rotor cores of circumferencial direction is contrary, in conjunction with adjacent two the stator core left sides of circumference, part the design feature of other symmetric arrays on the right side, the function that magnetic flux switches can be realized, avoid adjacent traditional horizontal magnetic field motor two rotor cores can only the situation of a corresponding stator core, improve space availability ratio, external stator and an internal stator iron core left side simultaneously, part the design feature of other symmetric arrays on the right side, epitrochanterian two adjacent permanent magnet can be utilized simultaneously, avoid permanent magnet non-productive work district, reduce the leakage field of magneticfocusing structure, improve the magnetic flux utilance of motor.
External stator air-gap magnetic circuit is connected with internal stator air-gap magnetic circuit, and main flux place plane is vertical with rotor direction of rotation.
Stator poles is equal with rotor number of poles, can improve the space availability ratio of motor.
The first permanent magnet 7 in rotor core 8 and the second permanent magnet 11 adopt NdFeB material.
Operation principle: as shown in Figure 4, t 0the main flux of moment rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor, armature winding no power, Fig. 4 (a) be depicted as P extremely under, external stator 5-1 unshakable in one's determination and rotor core 8 left-justify, namely 8-2 unshakable in one's determination with left rotor aligns, internal stator iron core 10-1 and rotor core 8 Right Aligns, namely 8-2 unshakable in one's determination with right rotor aligns, Fig. 4 (b) be depicted as P+1 extremely under, external stator 5-2 unshakable in one's determination and rotor core 8 Right Aligns, namely 8-2 unshakable in one's determination with right rotor aligns, internal stator iron core 10-2 and rotor core 8 left-justify, namely 8-2 unshakable in one's determination with left rotor aligns, the same external stator that extremely descends is connected with internal stator magnetic circuit, the flow direction through stator core of homopolarity lower rotor part unit permanent magnet generation is not identical, external stator winding 6 is also identical with the flow direction of internal stator winding 9, when rotor is in and t 0when moment position differs the position two of 180 degree of electrical degrees, i.e. t 1moment position, as shown in Figure 5, the alignment direction of external stator unshakable in one's determination 5 and internal stator iron core 10 and rotor core 8 and t 0moment is just in time contrary, and flow direction switches to another direction.Meanwhile, flow direction place plane is vertical with the direction of motion.When rotor continuous rotation, in stator armature winding, the amplitude of the magnetic flux of interlinkage and direction are periodically-varied, thus induce electromotive force, realize energy converting between mechanical.
When stator armature winding passes into suitable electric current, rotor can be realized and rotate.By changing frequency and the amplitude of armature winding supply current, rotating speed and the torque of rotor just can be controlled.
From Figure 4 and 5, two permanent magnets of each unit of any moment are all in running order, and external stator air-gap magnetic circuit is connected with internal stator air-gap magnetic circuit, can effectively reduce permanent magnet leakage field, thus improve power factor and the power density of motor.
Embodiment two: present embodiment is described below in conjunction with Fig. 1 to Fig. 5, rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor described in present embodiment, it comprises threephase stator, three-phase rotor, shell 3 and three rotor field spiders 4, every phase stator comprises external stator and internal stator, every phase rotor between this phase external stator and this phase internal stator, and is fixed on a rotor field spider 4; Form the first working gas gap between external stator and rotor, between internal stator and rotor, form the second working gas gap; Threephase stator is arranged in parallel vertically;
External stator comprises external stator unshakable in one's determination 5 and external stator armature winding 6, external stator iron core 5 comprises p the first U-shaped external stator 5-1 and p unshakable in one's determination the second U-shaped external stator 5-2 unshakable in one's determination, p the first U-shaped external stator 5-1 and p unshakable in one's determination the second U-shaped external stator 5-2 unshakable in one's determination is along the circumferential direction alternately distributed on the internal circular surfaces of shell 3, and the first U-shaped external stator 5-1 unshakable in one's determination and the second U-shaped external stator 5-2 unshakable in one's determination is at the distance d that axially staggers; External stator armature winding 6 is arranged in p the first U-shaped external stator 5-1 and p unshakable in one's determination U-shaped region that the second U-shaped external stator 5-2 unshakable in one's determination is common;
Internal stator comprises internal stator armature winding 9, internal stator iron core 10, non-magnetic internal stator sleeve 12 and internal stator axle 13, internal stator iron core 10 comprises p the first U-shaped internal stator iron core 10-1 and p the second U-shaped internal stator iron core 10-2, p the first U-shaped internal stator iron core 10-1 and p the second U-shaped internal stator iron core 10-2 is along the circumferential direction alternately distributed on the outer round surface of non-magnetic internal stator sleeve 12, and the first U-shaped internal stator iron core 10-1 and the second U-shaped internal stator iron core 10-2 is at the distance d that axially staggers; Internal stator armature winding 9 is arranged in the common U-shaped region of individual first U-shaped internal stator iron core 10-1 and p the second U-shaped internal stator iron core 10-2 of p; Non-magnetic internal stator sleeve 12 is fixedly installed on internal stator axle 13;
Rotor comprises 2p block first permanent magnet 7,2p block second permanent magnet 11, rotor core 8 and rotating shaft 1, and rotor core 8 comprises 2p centre position H type rotor core 8-1 and 4p outer rectangular rotor core 8-2; 2p centre position H type rotor core 8-1 is along the circumferential direction uniform, be respectively arranged with the first permanent magnet 7 and the second permanent magnet 11 between the left and right sides surface of each centre position H type rotor core 8-1 and symmetrically arranged two outer rectangular rotor core 8-2, these symmetrically arranged two outer rectangular rotor core 8-2 are fixed on rotor field spider 4; Rotor field spider 4 is flexibly connected with internal stator axle 13 by bearing 14, and rotor field spider is fixed in rotating shaft 1, and rotating shaft 1 is flexibly connected with shell 3 by bearing 2; The axle center of rotating shaft 1 and internal stator axle 13 is on same center line;
The outer rectangular rotor core 8-2 radially aligned of the first U-shaped external stator 5-1 unshakable in one's determination and side, the outer rectangular rotor core 8-2 radially aligned of the first U-shaped internal stator iron core 10-1 and symmetrical side, and axial width is equal.
The outer rectangular rotor core 8-2 radially aligned of the second U-shaped external stator 5-2 unshakable in one's determination and side, the outer rectangular rotor core 8-2 radially aligned of the second U-shaped internal stator iron core 10-2 and symmetrical side, and axial width is equal.
Three-phase external stator iron core 5 differs 120 degree of electrical degrees, three-phase internal stator iron core 10 in a circumferential direction successively, and difference 120 degree of electrical degrees or three-phase rotor core 8 differ 120 degree of electrical degrees mutually successively at circumferencial direction successively in a circumferential direction.
First permanent magnet 7 and the second permanent magnet 11 magnetize all vertically, first permanent magnet 7 of H type rotor core 8-1 both sides, same centre position is contrary with the magnetizing direction of the second permanent magnet 11, the magnetizing direction of adjacent two piece of first permanent magnet 7 of circumference is alternately contrary, and the magnetizing direction of adjacent two piece of second permanent magnet 11 of circumference is alternately contrary.
External stator unshakable in one's determination 5 and internal stator iron core 10 form by silicon steel plate packing.
The available non-magnet material of rectangular part in the middle of centre position H type rotor core 8-1 is made.
External stator armature winding 6 and internal stator armature winding 9 adopt Circular Winding.
Present embodiment is three phase electric machine, and its operation principle is identical with execution mode one.
Every phase external stator winding 6 and internal stator winding 9 can forward be composed in series a set of winding, also can be in parallel as double winding independent operating.

Claims (6)

1. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor, it is characterized in that, it comprises stator, rotor, shell (3) and rotor field spider (4), stator comprises external stator and internal stator, rotor between external stator and internal stator, and is fixed on rotor field spider (4); Form the first working gas gap between external stator and rotor, between internal stator and rotor, form the second working gas gap;
External stator comprises external stator iron core (5) and external stator armature winding (6), external stator iron core (5) comprises p the first U-shaped external stator iron core (5-1) and p the second U-shaped external stator iron core (5-2), p the first U-shaped external stator iron core (5-1) and the individual second U-shaped external stator iron core (5-2) of p are along the circumferential direction alternately distributed on the internal circular surfaces of shell (3), and the first U-shaped external stator iron core (5-1) and the second U-shaped external stator iron core (5-2) are at the distance d that axially staggers; External stator armature winding (6) is arranged in p the first U-shaped external stator iron core (5-1) and the common U-shaped region of the individual second U-shaped external stator iron core (5-2) of p;
Internal stator comprises internal stator armature winding (9), internal stator iron core (10), non-magnetic internal stator sleeve (12) and internal stator axle (13), internal stator iron core (10) comprises p the first U-shaped internal stator iron core (10-1) and p the second U-shaped internal stator iron core (10-2), p the first U-shaped internal stator iron core (10-1) and the individual second U-shaped internal stator iron core (10-2) of p are along the circumferential direction alternately distributed on the outer round surface of non-magnetic internal stator sleeve (12), and the first U-shaped internal stator iron core (10-1) and the second U-shaped internal stator iron core (10-2) are at the distance d that axially staggers, internal stator armature winding (9) is arranged in p the first U-shaped internal stator iron core (10-1) and the common U-shaped region of the individual second U-shaped internal stator iron core (10-2) of p, non-magnetic internal stator sleeve (12) is fixedly installed on internal stator axle (13),
Rotor comprises 2p block first permanent magnet (7), 2p block second permanent magnet (11), rotor core (8) and rotating shaft (1), and rotor core (8) comprises 2p centre position H type rotor core (8-1) and 4p outer rectangular rotor core (8-2); 2p centre position H type rotor core (8-1) is along the circumferential direction uniform, be respectively arranged with the first permanent magnet (7) and the second permanent magnet (11) between the left and right sides surface of each centre position H type rotor core (8-1) and symmetrically arranged two outer rectangular rotor cores (8-2), these symmetrically arranged two outer rectangular rotor cores (8-2) are fixed on rotor field spider (4); Rotor field spider (4) is flexibly connected with internal stator axle (13) by bearing (14), rotor field spider is fixed in rotating shaft (1), and rotating shaft (1) is flexibly connected with shell (3) by bearing (2); The axle center of rotating shaft (1) and internal stator axle (13) is on same center line;
Outer rectangular rotor core (8-2) radially aligned of the first U-shaped external stator iron core (5-1) and side, outer rectangular rotor core (8-2) radially aligned of the first U-shaped internal stator iron core (10-1) and symmetrical side, and axial width is equal.
Outer rectangular rotor core (8-2) radially aligned of the second U-shaped external stator iron core (5-2) and side, outer rectangular rotor core (8-2) radially aligned of the second U-shaped internal stator iron core (10-2) and symmetrical side, and axial width is equal.
2. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor, it is characterized in that, it comprises threephase stator, three-phase rotor, shell (3) and three rotor field spiders (4), every phase stator comprises external stator and internal stator, every phase rotor between this phase external stator and this phase internal stator, and is fixed on a rotor field spider (4); Form the first working gas gap between external stator and rotor, between internal stator and rotor, form the second working gas gap; Threephase stator is arranged in parallel vertically;
External stator comprises external stator iron core (5) and external stator armature winding (6), external stator iron core (5) comprises p the first U-shaped external stator iron core (5-1) and p the second U-shaped external stator iron core (5-2), p the first U-shaped external stator iron core (5-1) and the individual second U-shaped external stator iron core (5-2) of p are along the circumferential direction alternately distributed on the internal circular surfaces of shell (3), and the first U-shaped external stator iron core (5-1) and the second U-shaped external stator iron core (5-2) are at the distance d that axially staggers; External stator armature winding (6) is arranged in p the first U-shaped external stator iron core (5-1) and the common U-shaped region of the individual second U-shaped external stator iron core (5-2) of p;
Internal stator comprises internal stator armature winding (9), internal stator iron core (10), non-magnetic internal stator sleeve (12) and internal stator axle (13), internal stator iron core (10) comprises p the first U-shaped internal stator iron core (10-1) and p the second U-shaped internal stator iron core (10-2), p the first U-shaped internal stator iron core (10-1) and the individual second U-shaped internal stator iron core (10-2) of p are along the circumferential direction alternately distributed on the outer round surface of non-magnetic internal stator sleeve (12), and the first U-shaped internal stator iron core (10-1) and the second U-shaped internal stator iron core (10-2) are at the distance d that axially staggers, internal stator armature winding (9) is arranged in p the first U-shaped internal stator iron core (10-1) and the common U-shaped region of the individual second U-shaped internal stator iron core (10-2) of p, non-magnetic internal stator sleeve (12) is fixedly installed on internal stator axle (13),
Rotor comprises 2p block first permanent magnet (7), 2p block second permanent magnet (11), rotor core (8) and rotating shaft (1), and rotor core (8) comprises 2p centre position H type rotor core (8-1) and 4p outer rectangular rotor core (8-2); 2p centre position H type rotor core (8-1) is along the circumferential direction uniform, be respectively arranged with the first permanent magnet (7) and the second permanent magnet (11) between the left and right sides surface of each centre position H type rotor core (8-1) and symmetrically arranged two outer rectangular rotor cores (8-2), these symmetrically arranged two outer rectangular rotor cores (8-2) are fixed on rotor field spider (4); Rotor field spider (4) is flexibly connected with internal stator axle (13) by bearing (14), rotor field spider is fixed in rotating shaft (1), and rotating shaft (1) is flexibly connected with shell (3) by bearing (2); The axle center of rotating shaft (1) and internal stator axle (13) is on same center line;
Outer rectangular rotor core (8-2) radially aligned of the first U-shaped external stator iron core (5-1) and side, outer rectangular rotor core (8-2) radially aligned of the first U-shaped internal stator iron core (10-1) and symmetrical side, and axial width is equal.
Outer rectangular rotor core (8-2) radially aligned of the second U-shaped external stator iron core (5-2) and side, outer rectangular rotor core (8-2) radially aligned of the second U-shaped internal stator iron core (10-2) and symmetrical side, and axial width is equal.
Three-phase external stator iron core (5) differs 120 degree of electrical degrees, three-phase internal stator iron core (10) in a circumferential direction successively, and difference 120 degree of electrical degrees or three-phase rotor core (8) differ 120 degree of electrical degrees mutually successively at circumferencial direction successively in a circumferential direction.
3. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor according to claim 1 or 2, it is characterized in that, first permanent magnet (7) and the second permanent magnet (11) magnetize all vertically, first permanent magnet (7) of H type rotor core (8-1) both sides, same centre position is contrary with the magnetizing direction of the second permanent magnet (11), the magnetizing direction of adjacent two piece of first permanent magnet (7) of circumference is alternately contrary, and the magnetizing direction of adjacent two piece of second permanent magnet (11) of circumference is alternately contrary.
4. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor according to claim 1 or 2, is characterized in that, external stator iron core (5) and internal stator iron core (10) form by silicon steel plate packing.
5. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor according to claim 1 or 2, is characterized in that, the rectangular part in the middle of centre position H type rotor core (8-1) adopts non-magnet material to make.
6. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor according to claim 1 or 2, is characterized in that, external stator armature winding (6) and internal stator armature winding (9) adopt Circular Winding.
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