CN104836398B - Rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor - Google Patents

Rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor Download PDF

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Publication number
CN104836398B
CN104836398B CN201510274802.6A CN201510274802A CN104836398B CN 104836398 B CN104836398 B CN 104836398B CN 201510274802 A CN201510274802 A CN 201510274802A CN 104836398 B CN104836398 B CN 104836398B
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China
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rotor
stator
iron core
shaped
stator iron
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CN104836398A (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

Rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor, belongs to machine field, and the present invention is to solve traditional transversary motor, complex structure, and space availability ratio and winding utilization are low, the low problem of torque density and power density.The present invention includes stator, rotor, shell and rotor field spider, and stator includes external stator and inner stator, and rotor is located between external stator and inner stator, and is fixed on rotor field spider;The first working gas gap is formed between external stator and rotor, the second working gas gap between inner stator and rotor, is formed;External stator includes external stator iron core and external stator armature winding, external stator is unshakable in one's determination unshakable in one's determination including p U-shaped external stators right-alternative to a left side, inner stator includes inner stator armature winding, internal stator iron core, non-magnetic default sub-sleeve and inner stator axle, internal stator iron core includes p to the right-alternative U-shaped internal stator iron core in a left side, and rotor includes the first permanent magnet of 2p blocks, the second permanent magnet of 2p blocks, rotor core and rotating 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, belongs to machine field.
Background technology
Compared with electro-magnetic motor, magneto, particularly rare-earth permanent-magnet electric machine have simple structure, reliable;Body Little, the light weight of product;Little, efficiency high is lost;The shape and size of motor can wait remarkable advantage, thus range of application with versatile and flexible It is extremely wide, almost throughout the every field of Aero-Space, national defence, industrial and agricultural production and daily life.Permanent magnet machine rotor is tied Structure is divided into according to permanent magnet magnetic line structure:Surface-mount type and magneticfocusing.Rotor adopts magneticfocusing structure, with surface-mounted rotor structure phase Relatively, in air gap, effective harmonic flux density can be greatly improved, and can improve the power density of motor, while can also improve motor Power factor.
Traditional radial flux and axial-flux electric machine, its circuit and magnetic circuit exist and compete with one another in approximately the same plane, when When increasing electric load, need to increase the section of coil, i.e. groove area, then the width of tooth will reduce, in order to prevent saturation, just Magnetic loading must be reduced.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 load is complete in structure with magnetic loading Full decoupling, and couple per no between phase magnetic circuit, can independently analyze and control.In the case of same volume, can pass through The number of pole-pairs of expanded motor is particularly well-suited to the occasion of low-speed high-torque direct driving improving torque density and power density.
But traditional transversary motor, complex structure, space availability ratio and winding utilization it is low, torque density and work( Rate density is low.
The content of the invention
The invention aims to solve traditional transversary motor, complex structure, space availability ratio and winding are utilized Rate is low, the low problem of torque density and power density, there is provided a kind of rotor magneticfocusing bimorph transducer lateral direction magnetic field permanent magnetism synchronization Motor.
Rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor of the present invention, it include stator, rotor, shell and Rotor field spider, stator include external stator and inner stator, and rotor is located between external stator and inner stator, and is fixed on rotor field spider On;The first working gas gap is formed between external stator and rotor, the second working gas gap between inner stator and rotor, is formed;
External stator includes external stator iron core and external stator armature winding, and external stator is unshakable in one's determination including p the first U-shaped external stator ferrum The heart and p the second U-shaped external stator are unshakable in one's determination, and p 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 along the circumferential direction Alternating is distributed on the internal circular surfaces of shell, and the first U-shaped external stator is unshakable in one's determination and the second U-shaped external stator iron core is axially offsetting distance d;External stator armature winding is arranged on the U-shaped region that p the first U-shaped external stator is unshakable in one's determination and p the second U-shaped external stator iron core is common In;
Inner stator includes inner stator armature winding, internal stator iron core, non-magnetic default sub-sleeve and inner stator axle, inner stator It is unshakable in one's determination including 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 p Second U-shaped internal stator iron core is along the circumferential direction alternately distributed on the outer round surface of non-magnetic default sub-sleeve, and first U-shaped default Sub unshakable in one's determination and the second U-shaped internal stator iron core is being axially offset apart from d;Inner stator armature winding is arranged on p the first U-shaped inner stator In the unshakable in one's determination and p common U-shaped region of the second U-shaped internal stator iron core;Non-magnetic default sub-sleeve is fixedly installed on inner stator axle On;
Rotor includes the first permanent magnet of 2p blocks, the second permanent magnet of 2p blocks, rotor core and rotating shaft, and rotor core includes 2p Centre position H types rotor core and 4p outer rectangular rotor core;2p centre position H type rotor core is along the circumferential direction equal Cloth, divides between the left and right side surface of each centre position H type rotor cores and symmetrically arranged two outer rectangular rotor cores First permanent magnet and the second permanent magnet are not provided with, symmetrically arranged two outer rectangular rotor cores are fixed on rotor field spider On;Rotor field spider is flexibly connected with inner stator axle by bearing, and rotor field spider is fixed in rotating shaft, and rotating shaft passes through bearing and shell It is flexibly connected;The axle center of rotating shaft and inner stator axle is on same centrage;
First U-shaped external stator is unshakable in one's determination and the outer rectangular rotor core radially aligned of side, the first U-shaped internal stator iron core and The outer rectangular rotor core radially aligned of symmetrical side, and axial width is equal.
Second U-shaped external stator is unshakable in one's determination and the outer rectangular rotor core radially aligned of side, the second U-shaped internal stator iron core and The outer rectangular rotor core radially aligned of symmetrical side, and axial width is equal.
Advantages of the present invention:
1st, the rotor of motor of the present invention adopt magneticfocusing structure, iron core in place a pair of permanent magnets, the direction of magnetization conversely, and Permanent magnet magnetization in the two neighboring rotor core of circumferencial direction is in opposite direction, left and right with reference to circumferentially-adjacent two stator cores It is respectively symmetrically the construction featuress of arrangement, it is possible to achieve the function of magnetic flux switching, it is to avoid adjacent traditional horizontal magnetic field motor two Rotor core can only correspond to the situation of a stator core, improve space availability ratio, at the same external stator and internal stator iron core it is left, The right side is respectively symmetrically the construction featuress of arrangement, can simultaneously using two adjacent permanent magnets on rotor, it is to avoid the invalid work of permanent magnet Make area, reduce the leakage field of magneticfocusing structure, improve the magnetic flux utilization rate of motor.
2nd, each stator core of motor of the present invention is equivalently-sized, and each rotor core size is also identical, and can all use stalloy Fold and form.Any moment can make full use of permanent magnet, it is to avoid permanent magnet non-productive work area, can effectively reduce motor Leakage magnetic flux, improves the torque density and power density of motor.Therefore, the present invention is with a wide range of applications, can be in wind-force The applications such as generating, electric automobile, ship's electrical propulsion.
3rd, the stator armature winding of motor of the present invention is Circular Winding, is embedded in stator core groove, no end, effectively Shorten the inefficient length of winding.Meanwhile, forward can be composed in series per phase external stator winding and inner stator winding it is a set of around Group, it is also possible to which parallel connection is used as double winding independent operating.In high-power driving electric system, using bimorph transducer winding, total The voltage or current limit of driver electronic power switch device in the case that power is constant, can be reduced, system cost is reduced.
Description of the drawings
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 sectional views of Fig. 1;
Fig. 3 is the B-B sectional views of Fig. 1;
Fig. 4 (a) (b) is t0Moment, two adjacent two motor main fluxs between rotor unit and external stator, inner stator, electricity Pivot winding no power;
Fig. 5 (a) (b) is t1Moment, two adjacent two motor main fluxs between rotor unit and external stator, inner stator, electricity Pivot winding no power.
Specific embodiment
Specific embodiment one:Present embodiment, the poly- magnetic of rotor described in present embodiment are illustrated with reference to Fig. 1 to Fig. 5 Formula bimorph transducer transverse magnetic field permanent-magnet synchronous motor, it includes stator, rotor, shell 3 and rotor field spider 4, and stator includes external stator And inner stator, rotor is located between external stator and inner stator, and is fixed on rotor field spider 4;Formed between external stator and rotor First working gas gap, forms the second working gas gap between inner stator and rotor;
External stator includes external stator unshakable in one's determination 5 and external stator armature winding 6, external stator iron core 5 include p it is first U-shaped outer fixed 5-1 and p the second U-shaped external stator iron core 5-2 of sub- iron core, p the first U-shaped external stator iron core 5-1 and p 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 iron core 5-1 and second it is U-shaped outward Stator core 5-2 is being axially offset apart from d;External stator armature winding 6 is arranged on p the first U-shaped external stator iron core 5-1 and p In second U-shaped external stator iron core 5-2 common U-shaped region;
Inner stator includes inner stator armature winding 9, internal stator iron core 10, non-magnetic default sub-sleeve 12 and inner stator axle 13, internal stator iron core 10 includes p the first U-shaped internal stator iron core 10-1 and p the second U-shaped internal stator iron core 10-2, p individual 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 non-magnetic default sub-set The outer round surface of cylinder 12, and the first U-shaped internal stator iron core 10-1 and the second U-shaped internal stator iron core 10-2 axially offset apart from d; It is common that inner stator armature winding 9 is arranged on p the first U-shaped internal stator iron core 10-1 and p the second U-shaped internal stator iron core 10-2 In U-shaped region;Non-magnetic default sub-sleeve 12 is fixedly installed on inner stator axle 13;
Rotor includes the first permanent magnet of 2p blocks 7, the second permanent magnet of 2p blocks 11, rotor core 8 and rotating shaft 1, and rotor core 8 is wrapped Include 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, the left and right side surface of each centre position H type rotor core 8-1 and symmetrically arranged two outsides The first permanent magnet 7 and the second permanent magnet 11 are respectively arranged between rectangle rotor core 8-2, this symmetrically arranged two outside squares Shape rotor core 8-2 is fixed on rotor field spider 4;Rotor field spider 4 is flexibly connected with inner stator axle 13 by bearing 14, rotor Frame 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 inner stator axle 13 is in same On heart line;
First U-shaped external stator iron core 5-1 and the outer rectangular rotor core 8-2 radially aligneds of side, the first U-shaped inner stator The outer rectangular rotor core 8-2 radially aligneds of 10-1 unshakable in one's determination and symmetrical side, and axial width is equal.
Second U-shaped external stator iron core 5-2 and the outer rectangular rotor core 8-2 radially aligneds of side, the second U-shaped inner stator The outer rectangular rotor core 8-2 radially aligneds of 10-2 unshakable in one's determination and symmetrical side, and axial width is equal.
First permanent magnet 7 and the second permanent magnet 11 are magnetized vertically, same centre position H type rotor cores 8-1 two The magnetizing direction of first permanent magnet 7 and the second permanent magnet 11 of side is conversely, the magnetizing direction of circumferentially-adjacent two piece of first permanent magnet 7 It is alternately opposite, the magnetizing direction of circumferentially-adjacent two piece of second permanent magnet 11 is alternately opposite.
External stator unshakable in one's determination 5 and internal stator iron core 10 are formed by silicon steel plate packing.
The available non-magnet material in strip part in the middle of the H type rotor core 8-1 of centre position is made.
External stator armature winding 6 and inner stator armature winding 9 adopt Circular Winding.It is embedded in stator core groove, should be around Group does not have end, is effectively shortened the inefficient length of winding.In high-power driving electric system, using bimorph transducer winding, The voltage or current limit of driver electronic power switch device in the case where general power is constant, can be reduced, system is reduced Cost.
Present embodiment is monophase machine, and number of poles is 2p, and present embodiment motor can do electromotor use, that is, work as prime mover Rotor is driven when rotating, stator armature winding output AC electricity, rectified, boosting, the circuit such as inversion can be directly to Load supplying carries out micro-grid.
Present embodiment rotor adopts magneticfocusing structure.A pair of permanent magnets are placed in iron core, and circumferencial direction is two neighboring Permanent magnet magnetization in rotor core is in opposite direction, with reference to the left and right knot for being respectively symmetrically arrangement of circumferentially-adjacent two stator cores Structure feature, it is possible to achieve the function of magnetic flux switching, it is to avoid adjacent traditional two rotor cores of horizontal magnetic field motor can only be corresponded to The situation of one stator core, improve space availability ratio, while external stator and internal stator iron core is left and right is respectively symmetrically arrangement Construction featuress, can simultaneously using two adjacent permanent magnets on rotor, it is to avoid permanent magnet non-productive work area, reduces magneticfocusing knot The leakage field of structure, improves the magnetic flux utilization rate of motor.
External stator air-gap magnetic circuit is connected with inner stator air-gap magnetic circuit, and main flux place plane is hung down with rotor direction of rotation Directly.
Stator poles and rotor number of poles are equal, can improve the space availability ratio of motor.
The first permanent magnet 7 and the second permanent magnet 11 in rotor core 8 adopts NdFeB material.
Operation principle:As shown in figure 4, t0The main magnetic of moment rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor It is logical, armature winding no power, under Fig. 4 (a) show P extremely, external stator iron core 5-1 and 8 left-justify of rotor core, i.e., with left side turn Sub- iron core 8-2 alignment, internal stator iron core 10-1 and 8 Right Aligns of rotor core, i.e., alignd with right rotor iron core 8-2, Fig. 4 (b) Under showing P+1 extremely, external stator iron core 5-2 and 8 Right Aligns of rotor core alignd with right rotor iron core 8-2, inner stator ferrum Heart 10-2 and 8 left-justify of rotor core, i.e., alignd with left rotor iron core 8-2, same extremely to descend external stator and inner stator magnetic circuit string Connection, the flow direction through stator core that homopolarity lower rotor part unit permanent magnet is produced are identical, external stator winding 6 and inner stator The flow direction of winding 9 is also identical;When rotor is in and t0When moment position differs the position two of 180 degree electrical angle, i.e. t1Moment Position, as shown in figure 5, the alignment direction and t of external stator unshakable in one's determination 5 and internal stator iron core 10 and rotor core 80Moment just phase Instead, flow direction switches to another direction.Meanwhile, flow direction place plane is vertical with the direction of motion.When rotor continuously revolves When turning, the amplitude of the magnetic flux interlinked in stator armature winding and direction are in periodically-varied, so as to induce potential, are realized electromechanical Energy is changed.
When stator armature winding is passed through suitable electric current, you can realize that rotor rotates.Powered electricity by changing armature winding The frequency and amplitude of stream, it is possible to control rotating speed and the torque of rotor.
From Figure 4 and 5, two permanent magnets of any each unit of moment are in working condition, external stator air gap magnetic Road is connected with inner stator air-gap magnetic circuit, can effectively reduce permanent magnet leakage field, so as to the power factor and power that improve motor are close Degree.
Specific embodiment two:Present embodiment, the poly- magnetic of rotor described in present embodiment are illustrated with reference to Fig. 1 to Fig. 5 Formula bimorph transducer transverse magnetic field permanent-magnet synchronous motor, it includes threephase stator, three-phase rotor, shell 3 and three rotor field spiders 4, often Phase stator includes external stator and inner stator, is located between the phase external stator and the phase inner stator per phase rotor, and is fixed on one On rotor field spider 4;The first working gas gap is formed between external stator and rotor, the second work gas between inner stator and rotor, are formed Gap;Threephase stator arranged in parallel vertically;
External stator includes external stator unshakable in one's determination 5 and external stator armature winding 6, external stator iron core 5 include p it is first U-shaped outer fixed 5-1 and p the second U-shaped external stator iron core 5-2 of sub- iron core, p the first U-shaped external stator iron core 5-1 and p 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 iron core 5-1 and second it is U-shaped outward Stator core 5-2 is being axially offset apart from d;External stator armature winding 6 is arranged on p the first U-shaped external stator iron core 5-1 and p In second U-shaped external stator iron core 5-2 common U-shaped region;
Inner stator includes inner stator armature winding 9, internal stator iron core 10, non-magnetic default sub-sleeve 12 and inner stator axle 13, internal stator iron core 10 includes p the first U-shaped internal stator iron core 10-1 and p the second U-shaped internal stator iron core 10-2, p individual 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 non-magnetic default sub-set The outer round surface of cylinder 12, and the first U-shaped internal stator iron core 10-1 and the second U-shaped internal stator iron core 10-2 axially offset apart from d; It is common that inner stator armature winding 9 is arranged on p the first U-shaped internal stator iron core 10-1 and p the second U-shaped internal stator iron core 10-2 In U-shaped region;Non-magnetic default sub-sleeve 12 is fixedly installed on inner stator axle 13;
Rotor includes the first permanent magnet of 2p blocks 7, the second permanent magnet of 2p blocks 11, rotor core 8 and rotating shaft 1, and rotor core 8 is wrapped Include 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, the left and right side surface of each centre position H type rotor core 8-1 and symmetrically arranged two outsides The first permanent magnet 7 and the second permanent magnet 11 are respectively arranged between rectangle rotor core 8-2, this symmetrically arranged two outside squares Shape rotor core 8-2 is fixed on rotor field spider 4;Rotor field spider 4 is flexibly connected with inner stator axle 13 by bearing 14, rotor Frame 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 inner stator axle 13 is in same On heart line;
First U-shaped external stator iron core 5-1 and the outer rectangular rotor core 8-2 radially aligneds of side, the first U-shaped inner stator The outer rectangular rotor core 8-2 radially aligneds of 10-1 unshakable in one's determination and symmetrical side, and axial width is equal.
Second U-shaped external stator iron core 5-2 and the outer rectangular rotor core 8-2 radially aligneds of side, the second U-shaped inner stator The outer rectangular rotor core 8-2 radially aligneds of 10-2 unshakable in one's determination and symmetrical side, and axial width is equal.
Three-phase external stator iron core 5 differs 120 degree of electrical angles, three-phase internal stator iron cores 10 in a circumferential direction successively in circumference Differ 120 degree of electrical angles or three-phase rotor core 8 on direction successively 120 degree of electrical angles are mutually differed successively in circumferencial direction.
First permanent magnet 7 and the second permanent magnet 11 are magnetized vertically, same centre position H type rotor cores 8-1 two The magnetizing direction of first permanent magnet 7 and the second permanent magnet 11 of side is conversely, the magnetizing direction of circumferentially-adjacent two piece of first permanent magnet 7 It is alternately opposite, the magnetizing direction of circumferentially-adjacent two piece of second permanent magnet 11 is alternately opposite.
External stator unshakable in one's determination 5 and internal stator iron core 10 are formed by silicon steel plate packing.
The available non-magnet material in strip part in the middle of the H type rotor core 8-1 of centre position is made.
External stator armature winding 6 and inner stator armature winding 9 adopt Circular Winding.
Present embodiment is three phase electric machine, and its operation principle is identical with embodiment one.
A set of winding can be forward composed in series per phase external stator winding 6 and inner stator winding 9, it is also possible in parallel as two Set winding independent operating.

Claims (6)

1. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor, it is characterised in that it includes stator, rotor, shell (3) With rotor field spider (4), stator includes external stator and inner stator, and rotor is located between external stator and inner stator, and is fixed on rotor On support (4);The first working gas gap is formed between external stator and rotor, the second working gas gap between inner stator and rotor, is formed;
External stator includes external stator iron core (5) and external stator armature winding (6), external stator iron core (5) including p first it is U-shaped outward Stator 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 p the 2nd U Type external stator iron core (5-2) is 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) He the second U-shaped external stator iron core (5-2) is being axially offset apart from d;It is U-shaped outer that external stator armature winding (6) is arranged on p first In the common U-shaped region of stator core (5-1) and individual second U-shaped external stators iron core (5-2) of p;
Inner stator includes inner stator armature winding (9), internal stator iron core (10), non-magnetic default sub-sleeve (12) and inner stator axle (13), internal stator iron core (10) includes 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) are along the circumferential direction alternately distributed on The outer round surface of non-magnetic default sub-sleeve (12), and the first U-shaped internal stator iron core (10-1) and the second U-shaped internal stator iron core (10-2) axially offsetting apart from d;Inner stator armature winding (9) is arranged on p the first U-shaped internal stator iron core (10-1) and p In the common U-shaped region of second U-shaped internal stator iron core (10-2);Non-magnetic default sub-sleeve (12) is fixedly installed on inner stator axle (13) on;
Rotor includes the first permanent magnet of 2p blocks (7), the second permanent magnet of 2p blocks (11), rotor core (8) and rotating shaft (1), rotor ferrum The heart (8) includes 2p centre position H type rotor cores (8-1) and 4p outer rectangular rotor core (8-2);2p centre position H type rotor cores (8-1) is along the circumferential direction uniform, the left and right side surface in each centre position H type rotor cores (8-1) and symmetrical The first permanent magnet (7) and the second permanent magnet (11) are respectively arranged between the two outer rectangular rotor cores (8-2) for arranging, should Symmetrically arranged two outer rectangular rotor cores (8-2) are fixed on rotor field spider (4);Rotor field spider (4) is by bearing (14) it is flexibly connected with inner stator axle (13), rotor field spider is fixed in rotating shaft (1), rotating shaft (1) is by bearing (2) and shell (3) it is flexibly connected;The axle center of rotating shaft (1) and inner stator axle (13) is on same centrage;
First U-shaped external stator iron core (5-1) and outer rectangular rotor core (8-2) radially aligned of side, the first U-shaped inner stator Outer rectangular rotor core (8-2) radially aligned of unshakable in one's determination (10-1) and symmetrical side, and the first U-shaped external stator (5-1) unshakable in one's determination and The axial width of the first U-shaped internal stator iron core (10-1) is equal;
Second U-shaped internal stator iron core (10-2) and outer rectangular rotor core (8-2) radially aligned of side, second is U-shaped outer fixed Sub- iron core (5-2) and outer rectangular rotor core (8-2) radially aligned of symmetrical side, and the second U-shaped internal stator iron core (10-2) It is equal with the axial width of the second U-shaped external stator iron core (5-2).
2. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor, it is characterised in that it includes that threephase stator, three-phase turn Son, shell (3) and three rotor field spiders (4), include external stator and inner stator per phase stator, are located at the phase external stator per phase rotor And the phase inner stator between, and it is fixed on a rotor field spider (4);The first working gas gap is formed between external stator and rotor, The second working gas gap is formed between inner stator and rotor;Threephase stator arranged in parallel vertically;
External stator includes external stator iron core (5) and external stator armature winding (6), external stator iron core (5) including p first it is U-shaped outward Stator 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 p the 2nd U Type external stator iron core (5-2) is 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) He the second U-shaped external stator iron core (5-2) is being axially offset apart from d;It is U-shaped outer that external stator armature winding (6) is arranged on p first In the common U-shaped region of stator core (5-1) and individual second U-shaped external stators iron core (5-2) of p;
Inner stator includes inner stator armature winding (9), internal stator iron core (10), non-magnetic default sub-sleeve (12) and inner stator axle (13), internal stator iron core (10) includes 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) are along the circumferential direction alternately distributed on The outer round surface of non-magnetic default sub-sleeve (12), and the first U-shaped internal stator iron core (10-1) and the second U-shaped internal stator iron core (10-2) axially offsetting apart from d;Inner stator armature winding (9) is arranged on p the first U-shaped internal stator iron core (10-1) and p In the common U-shaped region of second U-shaped internal stator iron core (10-2);Non-magnetic default sub-sleeve (12) is fixedly installed on inner stator axle (13) on;
Rotor includes the first permanent magnet of 2p blocks (7), the second permanent magnet of 2p blocks (11), rotor core (8) and rotating shaft (1), rotor ferrum The heart (8) includes 2p centre position H type rotor cores (8-1) and 4p outer rectangular rotor core (8-2);2p centre position H type rotor cores (8-1) is along the circumferential direction uniform, the left and right side surface in each centre position H type rotor cores (8-1) and symmetrical The first permanent magnet (7) and the second permanent magnet (11) are respectively arranged between the two outer rectangular rotor cores (8-2) for arranging, should Symmetrically arranged two outer rectangular rotor cores (8-2) are fixed on rotor field spider (4);Rotor field spider (4) is by bearing (14) it is flexibly connected with inner stator axle (13), rotor field spider is fixed in rotating shaft (1), rotating shaft (1) is by bearing (2) and shell (3) it is flexibly connected;The axle center of rotating shaft (1) and inner stator axle (13) is on same centrage;
First U-shaped external stator iron core (5-1) and outer rectangular rotor core (8-2) radially aligned of side, the first U-shaped inner stator Outer rectangular rotor core (8-2) radially aligned of unshakable in one's determination (10-1) and symmetrical side, and the first U-shaped external stator (5-1) unshakable in one's determination and The axial width of the first U-shaped internal stator iron core (10-1) is equal;
Second U-shaped internal stator iron core (10-2) and outer rectangular rotor core (8-2) radially aligned of side, second is U-shaped outer fixed Sub- iron core (5-2) and outer rectangular rotor core (8-2) radially aligned of symmetrical side, and the second U-shaped internal stator iron core (10-2) It is equal with the axial width of the second U-shaped external stator iron core (5-2);
Three-phase external stator iron core (5) differs 120 degree of electrical angles, three-phase internal stator iron cores (10) in a circumferential direction successively in circumference Differ 120 degree of electrical angles or three-phase rotor core (8) on direction successively 120 degree of electrical angles are mutually differed successively in circumferencial direction.
3. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor according to claim 1 or claim 2, it is characterised in that One permanent magnet (7) and the second permanent magnet (11) are magnetized vertically, same centre position H type rotor cores (8-1) both sides The magnetizing direction of the first permanent magnet (7) and the second permanent magnet (11) is conversely, the side of magnetizing of circumferentially-adjacent two piece of first permanent magnet (7) To being alternately opposite, the magnetizing direction of circumferentially-adjacent two piece of second permanent magnet (11) is alternately opposite.
4. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor according to claim 1 or claim 2, it is characterised in that outward Stator core (5) and internal stator iron core (10) are formed by silicon steel plate packing.
5. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor according to claim 1 or claim 2, it is characterised in that in Between strip part in the middle of position H type rotor cores (8-1) made using non-magnet material.
6. rotor magneticfocusing bimorph transducer transverse magnetic field permanent-magnet synchronous motor according to claim 1 or claim 2, it is characterised in that outward Stator armature winding (6) and inner stator armature winding (9) adopt Circular Winding.
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CN109687671B (en) * 2019-03-04 2020-06-16 哈尔滨工业大学 Axial parallel double-stator multiphase permanent magnet fault-tolerant motor
CN112152409B (en) * 2020-08-19 2023-04-18 沈阳工业大学 Yoke-free segmented stator and rotor core axial flux permanent magnet motor
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