CN109038888B - Penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor magnetic circuit - Google Patents
Penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor magnetic circuit Download PDFInfo
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- CN109038888B CN109038888B CN201810708012.8A CN201810708012A CN109038888B CN 109038888 B CN109038888 B CN 109038888B CN 201810708012 A CN201810708012 A CN 201810708012A CN 109038888 B CN109038888 B CN 109038888B
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- 230000000149 penetrating effect Effects 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 85
- 239000010959 steel Substances 0.000 claims abstract description 85
- 238000004804 winding Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 210000000332 tooth crown Anatomy 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/165—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention discloses a magnetic circuit of a penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor, which comprises a motor shaft, wherein the motor shaft is a hollow shaft, and the left side and the right side of the motor shaft are respectively connected with a left bearing and a right bearing; the left bearing and the right bearing are respectively connected with a left rotating frame and a right rotating frame; a shell is connected between the left rotating frame and the right rotating frame; the motor shaft is connected with a stator assembly, and the stator assembly is positioned between the left bearing and the right bearing; the left rotating frame extends inwards to form an inner rotor fixing frame; the inner rotor fixing frame is connected with a plurality of inner rotor magnetic steels through an inner rotor magnetic yoke; the inner side of the shell is connected with a plurality of outer rotor magnetic steels through an outer rotor magnetic yoke; the motor has the advantages of simple structure, high torque density, high reliability and high controllability through the structural cooperation of the double rotors and the single stator; vibration and noise are reduced when the motor is operated.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a magnetic circuit of a penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor.
Background
In recent years, permanent magnet motors are increasingly widely applied in the fields of economy, national defense and the like, and the technology thereof is also becoming mature. At present, a permanent magnet motor is generally required to have the advantages of high torque density, high linearity and high efficiency.
In terms of improving the torque density, the current common method is that a motor stator core is provided with a notch or adopts a straight tooth structure, namely, the tooth crown on the traditional stator punching sheet is reduced or removed, and the method has the advantages that the magnetic flux leakage of the notch can be obviously reduced, the saturation degree of a motor magnetic circuit is reduced, and meanwhile, the main magnetic flux of an armature reaction can be increased, so that the torque density of the motor can be greatly improved; however, the disadvantage of this structure is that the width of the slot opening of the motor stator is large, and a large eddy current loss is generated on the rotor permanent magnet, and for the wound stator core with concentrated windings, the large slot opening or the straight tooth structure lacks the position limitation of the crown to the coil conductor, and increases the manufacturing difficulty of the motor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the magnetic circuit of the penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor, which has the advantages of simple structure, convenience in operation and practicability.
The invention is realized by the following modes:
a penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor magnetic circuit is characterized in that: the motor shaft is a hollow shaft, and the left side and the right side of the motor shaft are respectively connected with a left bearing and a right bearing; the left bearing and the right bearing are respectively connected with a left rotating frame and a right rotating frame; the left rotating frame and the right rotating frame are respectively rotatable relative to a motor shaft; a shell is connected between the left rotating frame and the right rotating frame; the motor shaft is connected with a stator assembly, and the stator assembly is positioned between the left bearing and the right bearing; the left rotating frame extends inwards to form an inner rotor fixing frame; the inner rotor fixing frame is connected with a plurality of inner rotor magnetic steels through an inner rotor magnetic yoke; the inner rotor magnetic steel is positioned at the inner side of the stator assembly; the inner side of the shell is connected with a plurality of outer rotor magnetic steels through an outer rotor magnetic yoke; the outer rotor magnetic steel is positioned at the outer side of the stator assembly;
the inner side of the left end of the motor shaft is connected with a rotary stator; the left rotating frame is connected with a rotary rotor matched with the discharge stator through a rotary fixing frame; the coil lead of the stator assembly is connected with an outgoing cable, the outgoing cable penetrates through the inside of the motor shaft and is converged with the outgoing line of the rotary transformer to form an output line, and the output line extends to the outer side from a sealing ring arranged at the right end of the motor shaft;
the inner rotor magnetic steels on the inner rotor magnetic yoke are arranged at intervals of N-S-N-S, and the outer rotor magnetic steels on the outer rotor magnetic yoke are arranged at intervals of S-N-S-N; when the inner rotor magnetic steel on the inner rotor magnetic yoke is the S pole, the outer rotor magnetic steel on the outer rotor magnetic yoke corresponding to the S pole is the N pole,
the number of the outer rotor magnetic steel and the inner rotor magnetic steel is 16 respectively, each outer rotor magnetic steel and each inner rotor magnetic steel can be simultaneously linked with two stator teeth on the stator assembly to generate two magnetic circuits, so that 32-pole magnetic circuits are formed between the 16 outer rotor magnetic steels and the 16 inner rotor magnetic steels and the stator assembly; the specific magnetic path trend is as follows: the magnetic force lines of the S poles of the inner rotor magnetic steel pass through the air gap of the inner rotor, and simultaneously link two stator teeth on the stator assembly, the stator assembly does not have a magnetic yoke part, only the stator teeth are arranged on the stator assembly, the magnetic force lines only travel the stator teeth, and the magnetic force lines directly enter the N poles of the outer rotor magnetic steel through the air gap of the outer rotor; at this time, the magnetic force lines of the N poles of the outer rotor magnetic steel respectively pass through the outer rotor magnetic yoke, enter the S poles of the outer rotor magnetic steel adjacent to the outer rotor magnetic yoke, pass through the outer rotor air gap again, enter the stator teeth on the corresponding stator assembly again, enter the left and right sides of the N poles of the inner rotor magnetic steel adjacent to the S poles of the outer rotor magnetic steel again through the air gap of the inner rotor, enter the left and right sides of the N poles of the inner rotor magnetic steel again, return to the S poles of the inner rotor magnetic steel again, and form two closed loops, so that the cross-linking of the two inner and outer rotor magnetic steels and the magnetic force lines of the magnetic field of one stator tooth is realized, and 32-pole magnetic circuits are formed between the 16 outer rotor magnetic steels and the 16 inner rotor magnetic steels and the stator assembly.
Further, the stator assembly comprises a stator fixing frame and stator teeth, and the stator fixing frame is arranged on a motor shaft; the left end of the stator fixing frame is connected with a stator core fixing frame, and a plurality of stator grooves for installing stator teeth are formed in the stator core fixing frame; stator teeth are arranged on the stator slots; a plurality of coil lead grooves are arranged on the stator fixing frame and are connected with corresponding stator grooves; the stator teeth comprise stator iron cores, a winding package is wound on the stator iron cores through a plastic insulating sheath, coil leads extend out of the winding package, and the coil leads are arranged in the coil lead grooves.
The invention has the beneficial effects that: the motor has the advantages of simple structure, high torque density, high reliability and high controllability through the structural cooperation of the double rotors and the single stator; vibration and noise are reduced when the motor is operated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is a schematic view of the partial magnetic circuit trend at A in FIG. 2;
FIG. 4 is a schematic view of a stator mounting bracket according to the present invention;
FIG. 5 is a cross-sectional view of the stator mount structure of the present invention;
fig. 6 is a schematic view of the stator tooth structure of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples:
the magnetic circuit of the penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor, as shown in figures 1-6, comprises a motor shaft 1, wherein the motor shaft 1 is a hollow shaft, and the left side and the right side of the motor shaft 1 are respectively connected with a left bearing 2 and a right bearing 3; the left bearing 2 and the right bearing 3 are respectively connected with a left rotating frame 4 and a right rotating frame 5; the left rotary frame 4 and the right rotary frame 5 are rotatable with respect to the motor shaft 1, respectively; a shell 6 is connected between the left rotating frame 4 and the right rotating frame 5; the motor shaft 1 is connected with a stator assembly 7, and the stator assembly 7 is positioned between the left bearing 2 and the right bearing 3; the left rotary frame 4 is formed with an inner rotor holder 41 extending inward; the inner rotor fixing frame 41 is connected with a plurality of inner rotor magnetic steels 43 through an inner rotor magnetic yoke 42; the inner rotor magnetic steel 43 is positioned on the inner side of the stator assembly 7; the inner side of the shell 6 is connected with a plurality of outer rotor magnetic steels 62 through an outer rotor magnetic yoke 61; the outer rotor magnetic steel 62 is positioned on the outer side of the stator assembly 7; the inner side of the left end of the motor shaft 1 is connected with a rotary stator 8; the left rotating frame 4 is connected with a rotary rotor 10 matched with the discharge stator 8 through a rotary fixing frame 9; the coil lead 11 of the stator assembly 7 is connected with an outgoing cable 12, the outgoing cable 12 penetrates through the motor shaft 1 and is converged with the outgoing line of the rotary transformer 8 to form an output line 13, and the output line 13 extends to the outer side from a sealing ring 14 arranged at the right end of the motor shaft 1; the inner rotor magnetic steels 43 on the inner rotor yoke 42 are arranged at intervals of N-S-N-S, and the outer rotor magnetic steels 62 on the outer rotor yoke 61 are arranged at intervals of S-N-S-N; when the inner rotor magnet steel 43 on the inner rotor magnet yoke 42 is the S pole, the corresponding outer rotor magnet steel 62 on the outer rotor magnet yoke 61 is the N pole, the number of the outer rotor magnet steel 62 and the inner rotor magnet steel 43 is 16, each outer rotor magnet steel 62 and each inner rotor magnet steel 43 can be simultaneously interlinked with two stator teeth 715 on the stator assembly 7 to generate two magnetic circuits, so that a 32-pole magnetic circuit is formed between the 16 outer rotor magnet steels 62 and the 16 inner rotor magnet steels 43 and the stator assembly 7; the specific magnetic path trend is as follows: the magnetic force lines of the S poles of the inner rotor magnetic steel 43 pass through the air gap of the inner rotor, and simultaneously are interlinked with two stator teeth 715 on the stator assembly 7, the stator assembly 7 has no magnetic yoke part, only the stator teeth 715 are arranged on the stator assembly 7, the magnetic force lines only travel through the stator teeth 715, and directly enter the N poles of the outer rotor magnetic steel 62 through the air gap of the outer rotor; at this time, the magnetic lines of force of the N poles entering the outer rotor magnet steel 62 pass through the outer rotor yoke 61 respectively, enter the S poles of the outer rotor magnet steel 62 adjacent to the left and right, the magnetic lines of force of the S poles of the outer rotor magnet steel 62 adjacent to the left and right pass through the outer rotor air gap again, enter the stator teeth 715 on the corresponding stator assembly 7, the magnetic lines of force of the stator teeth 715 entering the corresponding stator assembly 7 pass through the air gap of the inner rotor again, enter the left and right sides of the N poles of the inner rotor magnet steel 43 adjacent to the S poles of the outer rotor magnet steel 62, the magnetic lines of force of the left and right sides of the N poles of the inner rotor magnet steel 43 return to the S poles of the inner rotor magnet steel 43 again, and two closed loops are formed, so that the cross-linking of the magnetic lines of force of the magnetic fields of the two inner and outer rotor magnet steels and one stator tooth 715 is realized, and 32-pole magnetic circuits are formed between the 16 outer rotor magnet steels 62 and 16 inner rotor magnet steels 43 and the stator assembly 7.
In this embodiment, as shown in fig. 4, 5 and 6, the stator assembly 7 includes a stator fixing frame 72 and stator teeth 715, where the stator fixing frame 72 is disposed on the motor shaft 1; the left end of the stator fixing frame 72 is connected with a stator core fixing frame 76, and a plurality of stator grooves 77 for installing stator teeth 715 are formed in the stator core fixing frame 76; stator teeth 715 are arranged on the stator grooves 77; a plurality of coil lead grooves 711 are arranged on the stator fixing frame 72, and the coil lead grooves 711 are connected with the corresponding stator grooves 77; the stator teeth 715 comprise a stator core 71, a winding package 712 is wound on the stator core 71 through a plastic insulation sheath 713, a coil lead 11 extends from the winding package 712, and the coil lead 11 is arranged in a coil lead slot 711; an inner cavity ring 73 and an outer cavity ring 731 are integrally formed in the stator fixing frame 72, and the inner cavity ring 73 is communicated with a water inlet 74 on the stator fixing frame 72; the outer cavity ring 731 is in communication with the water outlet 75 on the stator mount 72; a plurality of water inlet through holes 78 and a plurality of water outlet through holes 781 are arranged in the stator core fixing frame 76 at intervals, and each group of water channels consists of one water inlet through hole 78 and one water outlet through hole 781; one end of the water inlet through hole 78 is communicated with the inner cavity ring 73 through the inner water channel 732; one end of the water outlet through hole 781 is communicated with the outer cavity ring 731 through the inner water channel 733; a cover plate 79 is connected to the left side of the stator core fixing frame 76; the cover plate 79 is provided with a plurality of water channel grooves 710 at intervals, and the ends of one water inlet through hole 78 and one water outlet through hole 781 correspond to one water channel groove 710, so that the water channel groove 710, the water inlet through hole 78, the water outlet through hole 781, the inner cavity ring 73 and the outer cavity ring 731 form a circulating cooling water channel.
In implementation, the left rotating frame 4 and the right rotating frame 5 are connected with a rotating device, such as a driving motor, the left rotating frame 4 and the right rotating frame 5 are driven to rotate by the rotating device, so that the inner rotor magnetic steel 43 and the outer rotor magnetic steel 62 are driven to rotate, the inner rotor magnetic steel 43 and the outer rotor magnetic steel 62 form a magnetic circuit with stator teeth 715 on the stator assembly 7 in the rotating process, and power formed by the magnetic circuit is output through the output line 13.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor is characterized in that: the motor comprises a motor shaft (1), wherein the motor shaft (1) is a hollow shaft, and the left side and the right side of the motor shaft (1) are respectively connected with a left bearing (2) and a right bearing (3); the left bearing (2) and the right bearing (3) are respectively connected with a left rotating frame (4) and a right rotating frame (5); the left rotating frame (4) and the right rotating frame (5) are respectively rotatable relative to the motor shaft (1); a shell (6) is connected between the left rotating frame (4) and the right rotating frame (5); the motor shaft (1) is connected with a stator assembly (7), and the stator assembly (7) is positioned between the left bearing (2) and the right bearing (3); the left rotary frame (4) extends inwards to form an inner rotor fixing frame (41); the inner rotor fixing frame (41) is connected with a plurality of inner rotor magnetic steels (43) through an inner rotor magnetic yoke (42); the inner rotor magnetic steel (43) is positioned at the inner side of the stator assembly (7); the inner side of the shell (6) is connected with a plurality of outer rotor magnetic steels (62) through an outer rotor magnetic yoke (61); the outer rotor magnetic steel (62) is positioned at the outer side of the stator assembly (7);
the inner side of the left end of the motor shaft (1) is connected with a rotary stator (8); a rotary rotor (10) matched with the discharge stator (8) is connected to the left rotary frame (4) through a rotary fixing frame (9); the coil lead (11) of the stator assembly (7) is connected with an outgoing cable (12), the outgoing cable (12) penetrates through the motor shaft (1) and is converged with the outgoing line of the rotary transformer (8) to form an output line (13), and the output line (13) extends to the outer side from a sealing ring (14) arranged at the right end of the motor shaft (1);
a plurality of inner rotor magnetic steels (43) on the inner rotor magnetic yoke (42) are arranged at intervals of N-S-N-S, and a plurality of outer rotor magnetic steels (62) on the outer rotor magnetic yoke (61) are arranged at intervals of S-N-S-N; when the inner rotor magnet steel (43) on the inner rotor magnet yoke (42) is S-pole, the outer rotor magnet steel (62) on the outer rotor magnet yoke (61) corresponding to the S-pole is N-pole,
the number of the outer rotor magnetic steels (62) and the inner rotor magnetic steels (43) is 16 respectively, and each outer rotor magnetic steel (62) and each inner rotor magnetic steel (43) can be simultaneously interlinked with two stator teeth (715) on the stator assembly (7) to generate two magnetic circuits, so that 32-pole magnetic circuits are formed between the 16 outer rotor magnetic steels (62) and the 16 inner rotor magnetic steels (43) and the stator assembly (7); the specific magnetic path trend is as follows: the magnetic force lines of the S pole of the inner rotor magnetic steel (43) pass through the air gap of the inner rotor, and simultaneously link two stator teeth (715) on the stator assembly (7), the stator assembly (7) has no magnetic yoke part, only the stator teeth (715) are arranged on the stator assembly (7), the magnetic force lines only travel the stator teeth (715), and directly enter the N pole of the outer rotor magnetic steel (62) through the air gap of the outer rotor; at this time, magnetic force lines entering the N poles of the outer rotor magnetic steel (62) respectively pass through the outer rotor magnet yoke (61), S poles of the outer rotor magnetic steel (62) adjacent to the outer rotor magnetic steel are respectively entered, S poles of the outer rotor magnetic steel (62) adjacent to the outer rotor magnetic steel are respectively passed through an outer rotor air gap, then the magnetic force lines entering the stator teeth (715) on the corresponding stator assembly (7) are respectively entered, the magnetic force lines entering the stator teeth (715) of the corresponding stator assembly (7) are respectively entered at the left side and the right side of the N poles of the inner rotor magnetic steel (43) adjacent to the S poles of the outer rotor magnetic steel (62) through an air gap of the inner rotor, and the magnetic force lines entering the left side and the right side of the N poles of the inner rotor magnetic steel (43) are respectively returned to the S poles of the inner rotor magnetic steel (43) to form two closed loops, so that the two inner rotor magnetic steels and the inner rotor magnetic steel (62) are in linkage with the magnetic field magnetic force lines of one stator tooth (715), and a 32-pole magnetic circuit is formed between the 16 outer rotor magnetic steels (43) and the stator assembly (7).
2. A penetrating radial magnetic circuit dual rotor single stator oriented magnetic circuit permanent magnet machine according to claim 1, wherein: the stator assembly (7) comprises a stator fixing frame (72) and stator teeth (715), and the stator fixing frame (72) is arranged on the motor shaft (1); the left end of the stator fixing frame (72) is connected with a stator core fixing frame (76), and a plurality of stator grooves (77) for installing stator teeth (715) are formed in the stator core fixing frame (76);
stator teeth (715) are arranged on the stator grooves (77); a plurality of coil lead grooves (711) are formed in the stator fixing frame (72), and the coil lead grooves (711) are connected with corresponding stator grooves (77); the stator teeth (715) comprise stator cores (71), a winding package (712) is wound on the stator cores (71) through a plastic insulating sheath (713), coil leads (11) extend out of the winding package (712), and the coil leads (11) are arranged in the coil lead grooves (711).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708012.8A CN109038888B (en) | 2018-07-02 | 2018-07-02 | Penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor magnetic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708012.8A CN109038888B (en) | 2018-07-02 | 2018-07-02 | Penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor magnetic circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109038888A CN109038888A (en) | 2018-12-18 |
| CN109038888B true CN109038888B (en) | 2024-02-02 |
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| CN201810708012.8A Active CN109038888B (en) | 2018-07-02 | 2018-07-02 | Penetrating radial magnetic circuit double-rotor single-stator oriented magnetic circuit permanent magnet motor magnetic circuit |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112838728B (en) * | 2020-12-30 | 2023-02-28 | 顺丰科技有限公司 | Birotor permanent magnet synchronous motor and working method thereof |
| CN113162350A (en) * | 2021-04-15 | 2021-07-23 | 深圳绿食宝科技有限公司 | High torque motor |
| CN114362465B (en) * | 2022-01-11 | 2024-01-16 | 郑余德 | Common-coil double-rotor permanent magnet motor |
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| JP2003299327A (en) * | 2002-04-01 | 2003-10-17 | Nissan Motor Co Ltd | Rotating electric machine |
| CN102497074A (en) * | 2011-12-26 | 2012-06-13 | 北京理工大学 | Multiphase fault tolerant permanent magnet motor based on birotor structure |
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| CN106849570A (en) * | 2017-03-03 | 2017-06-13 | 福建亚南电机有限公司 | A kind of permanent magnetism double stators and double rotors high torque density wheel hub motor |
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