CN212278089U - Stator double-partition hybrid permanent magnet memory motor - Google Patents
Stator double-partition hybrid permanent magnet memory motor Download PDFInfo
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- CN212278089U CN212278089U CN202021046606.6U CN202021046606U CN212278089U CN 212278089 U CN212278089 U CN 212278089U CN 202021046606 U CN202021046606 U CN 202021046606U CN 212278089 U CN212278089 U CN 212278089U
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- 238000005192 partition Methods 0.000 title claims abstract description 20
- -1 neodymium iron boron Chemical compound 0.000 claims abstract description 38
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 38
- 238000004804 winding Methods 0.000 claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000005415 magnetization Effects 0.000 claims abstract description 19
- 229910000828 alnico Inorganic materials 0.000 claims description 64
- 239000000463 material Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 241001407731 Corema Species 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 abstract description 8
- 230000004907 flux Effects 0.000 description 21
- 238000010586 diagram Methods 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 230000003313 weakening Effects 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible Effects 0.000 description 1
- 230000005301 magnetic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The utility model relates to the technical field of electric machine, a mixed permanent-magnet memory motor of stator double-partition is disclosed, including the interior district stator, interrotor and the outer district stator that arrange with one heart. The inner zone stator comprises an inner zone stator iron core, a mixed permanent magnet of neodymium iron boron and aluminum nickel cobalt and a pulse magnetization winding wound on the aluminum nickel cobalt permanent magnet, wherein the neodymium iron boron and the aluminum nickel cobalt permanent magnet are alternately arranged outside the inner zone stator iron core along the circumference by a Halbach array. The cylindrical intermediate rotor is formed by alternately arranging magnetic conduction blocks and insulating blocks along the circumference; the outer zone stator comprises an outer zone stator core and an armature winding arranged on the outer zone stator core; the outer-zone stator core comprises an outer-zone stator yoke and outer-zone stator teeth which are uniformly distributed along the circumference and protrude from the inner side of the outer-zone stator yoke, and a concentrated armature coil is wound on each outer-zone stator tooth. Compared with the prior art, the utility model discloses on the basis of realizing that stator subregion motor increases magnetism and weak magnetic field adjusts, can realize motor low-speed big torque, high-speed wide speed governing and high efficiency performance, be applicable to the electric automobile field.
Description
Technical Field
The utility model relates to a motor body designs technical field, especially designs a two subregion of stator mix permanent-magnet memory motor.
Background
As a key component of an electric vehicle, the performance of the motor has an important influence on the entire drive system. Aiming at the application characteristics of the electric automobile, the driving motor of the electric automobile has the advantages of larger torque output capacity, higher efficiency and wider speed regulation range.
At present, the permanent magnet flux switching motor is concerned due to a high torque density, high efficiency and high robust rotor structure. The structure is essentially a stator permanent magnet motor, the rotor is not provided with a winding and a permanent magnet, the winding and the permanent magnet are both positioned on the stator, and the motor has high air gap flux density due to the magnetism gathering effect of the permanent magnet on the stator, can realize larger torque output capacity, and has good application prospect. Meanwhile, the permanent magnet and the winding are arranged on the same component, namely the stator, in the motor, so that: 1. output torque aspect: the winding placing space is reduced, and the further improvement of the torque output capacity of the motor is limited. 2. In the aspect of motor installation: because the stator iron cores of the permanent magnet flux switching motor and the doubly salient stator permanent magnet motor are composed of discrete blocks, the difficulty of processing and installing the motors is increased. 3. Other properties: the stator permanent magnet motor has the advantages that the saturation degree of the stator magnetic field is high, the overload capacity of the motor is reduced, the temperature rise of the winding and the permanent magnet on the stator is increased by the structure, and the insulation damage of the winding and the irreversible demagnetization of the permanent magnet can be caused in serious cases.
Therefore, in 2015, the article "Novel electrical machinery having separate PM activation state" in volume 51 and the article "Novel double magnetic machinery with separate stator and rotor" in volume 51 and volume 5 of IEEE transport ON magnetic systems in volume 4 and volume 51, by z.q. Z h u (all self-strength) teach et al that a stator permanent magnet structure using stator partitions is proposed, the armature windings of which are located ON the stator of the outer region and the permanent magnets of which are located ON the stator of the inner region, thereby solving the space conflict between the armature windings and the permanent magnets, relieving the temperature rise of the stator and improving the working stability of the permanent magnets.
However, since two air gaps exist between the two-partition stator and the rotor in the stator-partition permanent magnet motor, compared with the original single-air-gap stator permanent magnet motor, the air gap flux density and the output torque under the equal electrical load are weakened, and although the torque output can be improved by improving the electrical load in the motor, the efficiency is relatively reduced. Therefore, for the stator-partitioned motor, how to improve the flux density and efficiency of the permanent magnet air gap of the stator-partitioned permanent magnet motor is a concern.
Disclosure of Invention
The purpose of the invention is as follows: to the problem that exists among the prior art, the utility model provides a two subregion of stator mix permanent-magnet memory motor structure with high torque density and efficient improves conventional stator subregion permanent-magnet machine's no-load air gap magnetic density, is applicable to electric automobile drive field.
The technical scheme is as follows: the utility model provides a stator dual-partition hybrid permanent magnet memory motor, which comprises an inner partition stator, a middle rotor and an outer partition stator, wherein the inner partition stator, the middle rotor and the outer partition stator are concentrically arranged; an outer air gap is arranged between the outer zone stator and the middle rotor, and an inner air gap is arranged between the inner zone stator and the middle rotor; the inner area stator comprises an inner area stator iron core, a permanent magnet arranged on the outer wall of the inner area stator iron core and a pulse magnetization winding arranged on the permanent magnet; the interrotor comprising circumferentially staggered teethThe magnetic conducting blocks and the insulating blocks are arranged; the outer region stator comprises an outer region stator core and a stator core arranged on the outer region stator coremA phase armature winding; the inner area stator and the outer area stator are fixedly connected with a motor shell, and the middle rotor is fixedly connected with a motor output shaft through a rotor bracket;
the outer region stator core comprises an outer region stator yoke andP souter area stator teeth uniformly protruding along the inner circumference of the outer area stator yoke, an outer area stator slot formed between any two adjacent outer area stator teethmThe phase armature windings are distributed inP sIn the stator slot of the outer zone, the outer zone is wound on the stator teeth of the outer zone to meet the requirementP s=6nWhereinnIs a positive integer; the permanent magnet arranged on the outer wall of the inner zone stator core comprises a fan-shaped annular neodymium iron boron permanent magnet, a fan-shaped annular aluminum nickel cobalt permanent magnet, a fan-shaped annular neodymium iron boron permanent magnet and a fan-shaped annular aluminum nickel cobalt permanent magnet which are arranged in a Halbach array.
Further, the interrotor is composed ofqA block magnetic conductive block andqthe block insulating blocks are arranged in a staggered manner along the circumferential direction and satisfy 2q= P s±2kWhereinkIs a positive integer.
Further, the outer circumference of the inner zone stator core is uniformly placedP sThe inner arc surface of the sector annular neodymium iron boron permanent magnet is tightly attached to the outer ring of the inner zone stator core,P sthe block neodymium iron boron permanent magnet is not directly connected in the circumferential direction to form a fan-shaped annular gap, the fan-shaped annular alnico permanent magnet is embedded in the gap, and two side faces of the fan-shaped annular alnico permanent magnet are respectively and closely attached to two side faces of the neodymium iron boron permanent magnet.
Further, the radial inner diameter of the fan-shaped alnico permanent magnet is larger than that of the fan-shaped neodymium iron boron permanent magnet, and the radial outer diameter of the fan-shaped alnico permanent magnet is smaller than that of the fan-shaped neodymium iron boron permanent magnet; form 2 inner district stator slots on every alnico permanent magnet radial both sides, the pulse magnetization winding is placed in inner district stator slot and is twined on the alnico permanent magnet.
Further, the method can be used for preparing a novel materialThe neodymium iron boron permanent magnet is made of rare earth neodymium iron boron permanent magnet material,P sthe magnetizing directions of the block neodymium iron boron permanent magnets are changed along the radial direction in an alternating mode, and the radial center lines of the block neodymium iron boron permanent magnets are aligned with the radial center lines of the outer zone stator teeth.
Furthermore, the AlNiCo permanent magnet is made of AlNiCo permanent magnet material,P sthe magnetizing directions of the bulk AlNiCo permanent magnets are changed alternately along the tangential direction, and the radial center lines of the bulk AlNiCo permanent magnets are aligned with the radial center lines of the outer zone stator slots.
Further, the pulse magnetization winding is a concentrated winding, a plurality of pulse magnetization winding concentrated winding coils are connected in series to form a single-phase pulse winding, and a short-time pulse current is applied to the single-phase pulse winding.
Has the advantages that:
1. the utility model discloses on conventional stator subregion motor structure basis, adopt the Halbach array permanent magnet structure who contains neodymium iron boron permanent magnet and alnico permanent magnet on the stator of inner zone, utilize the magnetism of gathering and the weak magnetic effect of Halbach array permanent magnet structure, and alnico permanent magnet can be filled by the short-time impulse current, demagnetized and "memory" live its characteristics that magnetism is close, can realize: the motor operates in a magnetism gathering mode at low speed, the alnico permanent magnet is fully positively magnetized at the moment, the outer air gap main magnetic field of the permanent magnet is enhanced, and the inner air gap magnetic field is weakened, so that the air gap flux density and the torque output capacity of the motor can be improved, the iron loss of a stator core in an inner zone can be reduced, and the efficiency of the motor during low-speed operation is improved; the permanent magnet is operated in a flux weakening mode at high speed, the AlNiCo permanent magnet is fully reversely magnetized at the moment, an air gap magnetic field at the inner side of the permanent magnet is enhanced, a main magnetic field at the outer side of the permanent magnet is weakened, the air gap flux density is reduced, the speed regulation range of the motor is increased, and flux weakening is performed by adjusting the permanent magnet magnetic field, so that flux weakening current and copper consumption generated correspondingly are reduced, and the efficiency of the motor in high-speed operation is improved.
2. Because the utility model discloses the motor has adopted stator permanent magnetism type structure, on neodymium iron boron permanent magnet, alnico permanent magnet and pulse magnetization winding all arranged in on the subregion stator, and armature winding arranged in on the outer district stator, realized the separation of armature winding and permanent magnet, change in the heat dissipation of motor, cooling.
3. The utility model discloses the interrotor simple structure that the motor adopted neither has permanent magnetic material, also does not have the winding, only comprises magnetic conduction piece and collets in turn, and the high-speed operation of specially adapted.
Drawings
Fig. 1 is a schematic view of a radial cross-section structure of a stator dual-partition hybrid permanent magnet memory motor according to the present invention;
FIG. 2 is a radial cross-sectional view of the outer sector stator of the present invention;
FIG. 3 is a schematic view of the inner stator of the alnico permanent magnet of the present invention during forward magnetization;
FIG. 4 is a schematic view of the inner stator section when the alnico permanent magnet of the present invention is reversely magnetized;
FIG. 5(a) is a schematic diagram of the "magnetization" of the permanent magnet field during forward magnetization of an AlNiCo permanent magnet;
FIG. 5(b) is a schematic diagram of "weak magnetic" of the permanent magnet field when the alnico permanent magnet is reversely magnetized;
FIG. 6(a) is the no-load magnetic field distribution of the motor when the alnico permanent magnet of finite element simulation is magnetized in the forward direction;
FIG. 6(b) is the distribution of the motor no-load magnetic field when the AlNiCo permanent magnet of finite element simulation is magnetized reversely;
FIG. 7(a) is the magnetic flux density waveform of the air gap in the no-load of the motor when the alnico permanent magnet of finite element simulation is magnetized in the forward direction;
FIG. 7(b) is the magnetic flux density waveform of the no-load outer air gap of the motor when the AlNiCo permanent magnet of finite element simulation is magnetized in the forward direction;
FIG. 7(c) is the magnetic flux density waveform of the air gap in the no-load of the motor when the AlNiCo permanent magnet of finite element simulation is magnetized reversely;
FIG. 7(d) is the magnetic flux density waveform of the no-load outer air gap of the motor when the AlNiCo permanent magnet of the finite element simulation is magnetized reversely.
Wherein: 1. the magnetic field generator comprises an outer zone stator, 1-1 parts of outer zone stator iron core, 1-2 parts of armature winding, 1-3 parts of outer zone stator magnetic yoke, 1-4 parts of outer zone stator teeth, 1-5 parts of outer zone stator slots, 2 parts of intermediate rotor, 2-1 parts of magnetic conduction block, 2-2 parts of insulation block, 3 parts of inner zone stator, 3-1 parts of inner zone stator iron core, 3-2 parts of neodymium iron boron permanent magnet, 3-3 parts of alnico permanent magnet, 3-4 parts of pulse magnetization winding and 3-5 parts of inner zone stator slots.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The technical solution of the present invention will be specifically described by taking a 3-phase outer-area stator 12 slot/intermediate rotor 10 pole/inner-area stator 12 pole stator partition motor shown in fig. 1 as an example.
The utility model discloses a motor includes concentric inner zone stator 3 of arranging, encircles the interrotor 2 of inner zone stator 3 and encircles outer district stator 1 of interrotor 2. As shown in fig. 1, an outer air gap is provided between the outer zone stator 1 and the interrotor 2, and an inner air gap is provided between the inner zone stator 3 and the interrotor 2.
The inner zone stator 3 comprises an inner zone stator iron core 3-1, a permanent magnet and a pulse magnetization winding 3-4 which are arranged on the inner zone stator iron core, the middle rotor 2 comprises a rotor bracket, a magnetic conduction block 2-1 and an insulation block 2-2, the outer zone stator 1 comprises an outer zone stator iron core 1-1 and an outer zone stator iron core 1-1mA phase armature winding 1-2; the inner partition stator 3 and the outer partition stator 1 are fixedly connected with a motor shell, and the middle rotor 2 is fixedly connected with a motor output shaft through a rotor bracket.
Referring to FIG. 2, the outer zone stator core 1-1 includes an outer zone stator yoke 1-3 andP souter area stator teeth 1-4 evenly protruding along the inner circumference of the outer area stator yoke 1-3, an outer area stator slot 1-5 is formed between any two adjacent outer area stator teeth 1-4,mthe phase armature windings 1-2 are distributed on theP sIn each outer zone stator slot 1-5, andmthe phase armature windings 1-2 are respectively wound on the outer region stator teeth 1-4 to meet the requirementP s=6nWhereinnIs a positive integer.
The interrotor 2 is composed ofqBlock magnetic conductive block 2-1 andqthe block insulating blocks 2-2 are arranged in a staggered manner along the circumferential direction and satisfy 2q= P s±2kWhereinkIs a positive integer.
Referring to fig. 3 and 4, the inner stator core 3-1 is circular and is uniformly arranged along the circumference of the outer ring of the inner stator core 3-1P sSector ringThe neodymium iron boron permanent magnet 3-2, the inner arc surface of the neodymium iron boron permanent magnet 3-2 and the outer ring of the inner zone stator core 3-1 are closely attached together.P sThe block neodymium iron boron permanent magnets 3-2 are not directly connected in the circumferential direction to form a sector annular gap, and the sector annular alnico permanent magnets 3-3 are embedded in the gap. Two side faces of the fan-shaped alnico permanent magnet 3-3 are tightly attached to the neodymium iron boron permanent magnet 3-2, the radial inner diameter of the fan-shaped alnico permanent magnet 3-3 is larger than the radial inner diameter of the fan-shaped alnico permanent magnet 3-2, the radial outer diameter of the fan-shaped alnico permanent magnet 3-3 is smaller than the radial outer diameter of the fan-shaped alnico permanent magnet 3-2, 2 inner area stator slots 3-5 are formed on two radial sides of each alnico permanent magnet 3-3, and a pulse magnetization winding 3-4 is placed in each inner area stator slot 3-5 and wound on the alnico permanent magnet 3-3 in a parallel.
The neodymium iron boron permanent magnet 3-2 is made of rare earth neodymium iron boron permanent magnet material,P sthe magnetizing directions of the block neodymium iron boron permanent magnets 3-2 are changed alternately along the radial direction, the center lines of the block neodymium iron boron permanent magnets are aligned with the center lines of the outer zone stator teeth 1-4, and the block neodymium iron boron permanent magnets and the outer zone stator teeth are on the same straight line. The AlNiCo permanent magnet 3-3 is made of AlNiCo permanent magnet material,P sthe magnetizing directions of the block AlNiCo permanent magnets 3-3 are changed alternately along the tangential direction, the central line of the block AlNiCo permanent magnets is aligned with the central line of the outer zone stator slots 1-5, and the block AlNiCo permanent magnets and the outer zone stator slots are on the same straight line. Because the alnico permanent magnetic material has the characteristic of low coercive force, the casting manufacturing process is adopted, the temperature stability is high, the alnico permanent magnetic material can be charged and demagnetized by short-time pulse current, the magnetic density level of the alnico permanent magnetic material can be memorized, and the air gap magnetic density of the motor can be flexibly adjusted.
The pulse magnetization windings 3-4 are concentrated windings,P sthe pulse magnetizing windings 3-4 are connected in series to form a single-phase pulse winding, and short-time pulse current is applied to the pulse windings to change the magnetizing level and the magnetizing direction of the alnico permanent magnets 3-3 to adjust the air gap magnetic field of the motor. Fig. 3 is a schematic view showing the magnetization direction of the permanent magnet on the stator of the inner zone when the alnico permanent magnet 3-3 is positively magnetized by a short-time pulse current. Fig. 4 is a schematic diagram showing the magnetization direction of the permanent magnet on the stator of the inner zone when the alnico permanent magnet 3-3 is reversely magnetized by the short-time pulse current.
Fig. 5(a) and 5(b) are schematic diagrams of the field adjusting mechanism of the motor of the present invention, wherein the flux linkage direction generated by the alnico permanent magnet 3-3 is shown by dotted lines, and the flux linkage generated by the ndfeb permanent magnet 3-2 is shown by solid lines.
As shown in FIG. 5(a), the AlNiCo permanent magnet 3-3 is completely magnetized in the forward direction, the flux linkage generated by the AlNiCo permanent magnet 3-3 and the NdFeB permanent magnet 3-2 passes through the inner and outer air gaps at the outer side of the permanent magnet, the main magnetic circuit formed by the magnetic conduction block 2-1 of the middle rotor 2 and the outer region stator core 1-1 has the same direction, when the permanent magnet flows through the inner zone stator iron core 3-1 at the inner side, the directions are opposite, so that the magnetic fields of the AlNiCo permanent magnet 3-3 and the NdFeB permanent magnet 3-2 at the outer side of the permanent magnet are mutually superposed to realize the magnetic enhancement of the main magnetic field, and the inner sides of the permanent magnets are weakened mutually to realize weak magnetism, and the motor has larger air gap flux density at the moment, is suitable for the working condition of low speed and large torque, simultaneously reduces the iron loss of the stator in the inner area, and improves the efficiency of the motor during low speed operation.
FIG. 5(b) shows a "high-speed weak magnetic speed regulation" mode, in which the AlNiCo permanent magnet 3-3 is completely magnetized in reverse direction, the flux linkage generated by the AlNiCo permanent magnet 3-3 and the NdFeB permanent magnet 3-2 passes through the inner and outer air gaps at the outer side of the permanent magnet, the middle rotor magnetic block 2-1 and the outer stator core 1-1 to form a main magnetic circuit in opposite directions, while the direction is the same when the permanent magnet flows through the inner zone stator iron core 3-1, so the main magnetic fields of the alnico permanent magnet 3-3 and the ndfeb permanent magnet 3-2 at the outer side of the permanent magnet are weakened mutually to realize weak magnetism, thereby realizing the purpose of widening the speed regulation range of the motor, and because the flux weakening is carried out by regulating the permanent magnetic field, therefore, the weak magnetic current and the copper consumption generated correspondingly are reduced, and the efficiency of the motor in high-speed operation is improved.
Fig. 6(a), 6(b), 7(a), 7(b), 7(c) and 7(d) show the distribution of the space-borne magnetic field when the alnico permanent magnet 3-3 is magnetized completely in the forward and reverse directions in the motor of the present invention. The magnetic force line distribution diagram in fig. 6(a) and fig. 6(b) conforms to the magnetic field distribution schematic diagram shown in fig. 5(a) and fig. 5(b), and fig. 7(a), fig. 7(b), fig. 7(c) and fig. 7(d) show the significant change of the inner and outer air gap magnetic density when the alnico permanent magnet 3-3 is completely forward and reversely magnetized, which illustrates that the motor of the present invention has strong magnetizing and flux weakening capability, can realize the performance requirements of low-speed large torque, high-speed wide speed regulation range and high efficiency, and is suitable for the electric automobile field.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. A stator double-partition hybrid permanent magnet memory motor is characterized by comprising an inner partition stator (3) concentrically arranged, a middle rotor (2) surrounding the inner partition stator (3) and an outer partition stator (1) surrounding the middle rotor (2);
an outer air gap is arranged between the outer zone stator (1) and the middle rotor (2), and an inner air gap is arranged between the inner zone stator (3) and the middle rotor (2);
the inner area stator (3) comprises an inner area stator iron core (3-1), a permanent magnet arranged on the outer wall of the inner area stator iron core (3-1) and a pulse magnetization winding (3-4) arranged on the permanent magnet; the middle rotor (2) comprises magnetic conduction blocks (2-1) and insulation blocks (2-2) which are staggered along the circumferential direction; the outer zone stator (1) comprises an outer zone stator core (1-1) and a stator core (1-1) arranged on the outer zone stator coremA phase armature winding (1-2);
the inner area stator (3) and the outer area stator (1) are fixedly connected with a motor shell, and the middle rotor (2) is fixedly connected with a motor output shaft through a rotor bracket;
the outer region stator core (1-1) comprises an outer region stator yoke (1-3) andP souter region stator teeth (1-4) uniformly protruding along the inner circumference of the outer region stator yoke (1-3), and an outer region stator slot (1-5) formed between any two adjacent outer region stator teeth (1-4)mThe phase armature windings (1-2) are distributed inP sThe outer zone stator slots (1-5) are wound on the outer zone stator teeth(1-4) above, satisfyP s=6nWhereinnIs a positive integer; the permanent magnet arranged on the outer wall of the inner zone stator core (3-1) comprises a fan-shaped annular neodymium-iron-boron permanent magnet (3-2) and a fan-shaped annular aluminum-nickel-cobalt permanent magnet (3-3), and the fan-shaped annular neodymium-iron-boron permanent magnet (3-2) and the fan-shaped annular aluminum-nickel-cobalt permanent magnet (3-3) are arranged in a Halbach array.
2. Stator double-sectored hybrid permanent magnet memory machine according to claim 1, characterized in that said interrotor (2) consists ofqA block magnetic conduction block (2-1) andqthe block insulating blocks (2-2) are arranged in a staggered manner along the circumferential direction and satisfy 2q= P s±2kWhereinkIs a positive integer.
3. Stator dual-sectored hybrid pm memory machine according to claim 1, wherein said inner sector stator core (3-1) is uniformly placed on its outer circumferenceP sThe ring-shaped neodymium iron boron permanent magnet (3-2) of the sector, the inner arc surface of the neodymium iron boron permanent magnet (3-2) is closely attached to the outer ring of the stator core (3-1) of the inner zone,P sthe block neodymium iron boron permanent magnet (3-2) is not directly connected in the circumferential direction to form a fan-shaped annular gap, the fan-shaped annular alnico permanent magnet (3-3) is embedded in the gap, and two side faces of the fan-shaped annular alnico permanent magnet (3-3) are respectively and closely attached to two side faces of the neodymium iron boron permanent magnet (3-2).
4. The stator dual-partition hybrid permanent magnet memory motor according to claim 3, wherein the radial inner diameter of the fan-shaped alnico permanent magnet (3-3) is larger than the radial inner diameter of the fan-shaped ndfeb permanent magnet (3-2), and the radial outer diameter of the fan-shaped alnico permanent magnet (3-3) is smaller than the radial outer diameter of the fan-shaped ndfeb permanent magnet (3-2); 2 inner-area stator slots (3-5) are formed on two radial sides of each alnico permanent magnet (3-3), and the pulse magnetization windings (3-4) are placed in the inner-area stator slots (3-5) and wound on the alnico permanent magnets (3-3).
5. The stator double-partition hybrid permanent magnet memory motor according to claim 4, wherein the NdFeB permanent magnet (3-2) is made of rare earth NdFeB permanent magnet material,P sthe magnetizing directions of the block NdFeB permanent magnets (3-2) are changed along the radial direction in an alternating mode, and the radial center lines of the block NdFeB permanent magnets are aligned with the radial center lines of the outer zone stator teeth (1-4).
6. The stator dual-sectored hybrid pm memory machine as claimed in claim 4, wherein said alnico permanent magnets (3-3) are made of alnico permanent magnet material,P sthe magnetizing directions of the block AlNiCo permanent magnets (3-3) are changed alternately along the tangential direction, and the radial central lines of the block AlNiCo permanent magnets are aligned with the radial central lines of the outer zone stator slots (1-5).
7. A stator dual-sectorization hybrid permanent magnet memory machine according to any of claims 1-6, characterized in that the pulse magnetization windings (3-4) are concentrated windings, and a plurality of the pulse magnetization windings (3-4) concentrated winding coils are connected in series to form a single-phase pulse winding, to which a short-time pulse current is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021046606.6U CN212278089U (en) | 2020-06-09 | 2020-06-09 | Stator double-partition hybrid permanent magnet memory motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021046606.6U CN212278089U (en) | 2020-06-09 | 2020-06-09 | Stator double-partition hybrid permanent magnet memory motor |
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| Publication Number | Publication Date |
|---|---|
| CN212278089U true CN212278089U (en) | 2021-01-01 |
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| CN202021046606.6U Active CN212278089U (en) | 2020-06-09 | 2020-06-09 | Stator double-partition hybrid permanent magnet memory motor |
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| Country | Link |
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| CN (1) | CN212278089U (en) |
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2020
- 2020-06-09 CN CN202021046606.6U patent/CN212278089U/en active Active
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Assignee: Shanghai Yanqiao Information Technology Co.,Ltd. Assignor: HUAIYIN INSTITUTE OF TECHNOLOGY Contract record no.: X2022980020273 Denomination of utility model: Stator dual zone hybrid permanent magnet memory motor Granted publication date: 20210101 License type: Common License Record date: 20221108 |
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