CN111478470A - Permanent magnet synchronous motor with double-armature radial magnetic circuit structure - Google Patents
Permanent magnet synchronous motor with double-armature radial magnetic circuit structure Download PDFInfo
- Publication number
- CN111478470A CN111478470A CN202010392048.7A CN202010392048A CN111478470A CN 111478470 A CN111478470 A CN 111478470A CN 202010392048 A CN202010392048 A CN 202010392048A CN 111478470 A CN111478470 A CN 111478470A
- Authority
- CN
- China
- Prior art keywords
- armature
- rotor
- magnetic
- stator teeth
- circuit structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
-
- 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
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
- H02K21/227—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos having an annular armature coil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
Abstract
A permanent magnet synchronous motor with a double-armature radial magnetic circuit structure belongs to the technical field of motors. The motor comprises a rotor, an outer armature arranged outside the rotor and an inner armature arranged inside the rotor; the outer armature and the inner armature are both arranged concentrically with the rotor, and gaps are provided between the outer armature and the rotor and between the inner armature and the rotor; a plurality of pairs of magnetic steels arranged along the circumference are embedded in a rotor core of the rotor; the magnetic field direction of each piece of magnetic steel is radial, and the magnetic steels on the same circumference are arranged in an N, S-pole alternating mode; at the same radial position of the rotor poles, the polarity of the magnetic field at the outer circumference of the rotor is opposite to the polarity of the magnetic field at the inner circumference. The invention adopts the embedded permanent magnet type magnetic circuit structure to realize the internal connection of two sets of armature windings, further improves the axial size utilization rate of the motor and simultaneously realizes good controllability.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a permanent magnet synchronous motor with a double-armature radial magnetic circuit structure.
Background
The flat large-torque motor is more and more widely used as a direct-drive motor in high-power servo, engineering machinery and hub drive. The motor rotor with the embedded radial magnetic circuit structure has good debugging performance and working efficiency, and is an ideal choice for the motor. However, due to the fact that the cost and the spatial arrangement of the motor in the market are higher and higher, a motor with a double-stator axial magnetic circuit structure and a double-armature radial magnetic circuit structure are available at present, but the speed regulation performance and the efficiency of the axial magnetic circuit structure cannot achieve ideal effects, the radial magnetic circuit double-armature structure in the market basically adopts a surface-mounted magnetic steel structure, and the problems that an inner armature and an outer armature need to be connected with the outside or need to be controlled by double controllers exist.
The invention patent application CN201610306643.8 discloses an embedded biradial synthetic magnetic field permanent magnet steel hub driving motor, and specifically discloses a motor which comprises a front end cover 2, a rear end cover 8, a hub type shell 5, a rotor, a stator 6, a stator bracket 9 and a shaft 1; the hub driving motor rotor is an embedded permanent magnet rotor with a biradial synthetic magnetic field; the embedded permanent magnet rotor consists of a first rectangular permanent magnet steel 3, a second rectangular permanent magnet steel 10, a rotor iron core 4, a hub type casing 5 and a magnetic isolation air gap 7, wherein even numbers of right V-shaped grooves which penetrate through the thickness of the rotor iron core 4 and are formed by two first rectangular grooves are uniformly distributed on the rotor iron core 4, an inverted V-shaped groove which penetrates through the thickness 4 of the rotor iron core and is formed by two second rectangular grooves is arranged in the middle of the outer end of the right V-shaped groove formed by the two first rectangular grooves, the inner ends of the two second rectangular grooves which form the inverted V-shaped groove are not communicated, the inner ends of the first rectangular grooves are not communicated with the inner circle of the rotor iron core 4, the inner ends of the two adjacent first rectangular grooves which form the right V-shaped groove are not communicated, the outer end of each first rectangular groove and the outer end of the adjacent second rectangular groove are jointly provided with the magnetic isolation air gap 7 which penetrates through the thickness of the rotor iron core 4, and the inner ends of the magnetic isolation air gaps 7 are communicated with the outer ends of the first, the outer end of the magnetic isolation air gap 7 is not communicated with the excircle of the rotor core 4, and the adjacent magnetic isolation air gaps 7 are not communicated.
Disclosure of Invention
The invention provides a permanent magnet synchronous motor with a double-armature radial magnetic circuit structure, which aims at solving the problems in the prior art.
The invention is realized by the following technical scheme:
the invention relates to a permanent magnet synchronous motor with a double-armature radial magnetic circuit structure, which comprises a rotor, an outer armature arranged outside the rotor and an inner armature arranged inside the rotor; the outer armature and the inner armature are both arranged concentrically with the rotor, and gaps are provided between the outer armature and the rotor and between the inner armature and the rotor; a plurality of pairs of magnetic steels arranged along the circumference are embedded in a rotor core of the rotor; the magnetic field direction of each piece of magnetic steel is radial, and the magnetic steels on the same circumference are arranged in an N, S-pole alternating mode; at the same radial position of the rotor poles, the polarity of the magnetic field at the outer circumference of the rotor is opposite to the polarity of the magnetic field at the inner circumference.
The motor rotor of the invention adopts an embedded permanent magnet type magnetic circuit structure, realizes the internal connection of two sets of armature windings, and solves the problem that the internal armature and the external armature need external wiring or double-controller control in the existing surface-mounted magnetic steel structure.
Preferably, the inner armature is provided with a plurality of inner stator teeth along the circumference; the outer armature is provided with a plurality of outer stator teeth along the circumference; the number of inner stator teeth is equal to the number of outer stator teeth.
Preferably, each inner stator tooth is aligned with one outer stator tooth; or each inner fixed tooth and one outer stator tooth are staggered with each other by half the tooth width.
Preferably, the coil wound outside the inner stator teeth and the coil wound outside the outer stator teeth corresponding to the inner stator teeth are connected in series through the transition line of the inner armature coil and the outer armature coil.
Preferably, the central point of the end of the three-phase winding of the motor is connected to a busbar on the inner armature, and the lead-out wire of the three-phase winding of the motor is led out from the outer armature side.
Preferably, the inner armature and the outer armature both adopt concentrated windings.
Preferably, the cross-sectional area of the winding wound by the enameled wire on the inner armature is equal to the cross-sectional area of the winding wound by the enameled wire on the outer armature.
Preferably, the outer armature has outer stator teeth that are wider than the inner armature teeth, and the outer armature has a larger number of turns than the inner armature.
Preferably, an inner notch is formed between adjacent inner stator teeth on the inner armature and is used for accommodating a coil sleeved on the inner stator teeth; and an outer notch is arranged between adjacent outer stator teeth on the outer armature and is used for accommodating a coil sleeved on the outer stator teeth.
Preferably, one pair of adjacent magnetic steels can be overlapped with two outer stator teeth on the outer armature and can be overlapped with two inner stator teeth on the inner armature simultaneously; the other pair of adjacent magnetic steels can be overlapped with the outer slot parts on two sides of one outer stator tooth on the outer armature and can be overlapped with the inner slot parts on two sides of one inner stator tooth on the inner armature.
The invention has the following beneficial effects:
the permanent magnet synchronous motor with the double-armature radial magnetic circuit structure adopts an embedded permanent magnet synchronous motor rotor structure, realizes the internal connection of two sets of armature windings, further improves the axial size utilization rate of the motor, and simultaneously realizes good controllability.
Drawings
FIG. 1 is a radial cross-sectional view of a permanent magnet synchronous motor with a dual armature radial magnetic circuit structure according to the present invention;
FIG. 2 is a schematic view of magnetic field polarities of three adjacent pairs of magnetic steels in a permanent magnet synchronous motor with a dual-armature radial magnetic circuit structure according to the present invention;
FIG. 3 is an axial cross-sectional view of a PMSM with a dual-armature radial magnetic circuit structure according to the present invention;
fig. 4 is a schematic view of the structure of armature coils connected in series;
FIG. 5 is a simulation diagram of the motor magnetic circuit of a permanent magnet synchronous motor with a dual-armature radial magnetic circuit structure (when the motor is unloaded);
FIG. 6 is a simulation diagram of the motor magnetic circuit of a permanent magnet synchronous motor with a dual-armature radial magnetic circuit structure according to the present invention (when the motor is loaded at a large torque section);
fig. 7 is a simulation diagram of a motor magnetic circuit of a permanent magnet synchronous motor with a dual-armature radial magnetic circuit structure (during a motor field weakening and speed increasing section).
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1-3, a permanent magnet synchronous motor with a dual-armature radial magnetic circuit structure comprises a rotor 2, an outer armature 1 arranged outside the rotor, and an inner armature 3 arranged inside the rotor. The outer armature 1 and the inner armature 3 are both arranged concentrically with the rotor 2, and gaps are provided between the outer armature 1 and the rotor 2 and between the inner armature 3 and the rotor 1. The rotor core 21 of the rotor is internally embedded with a plurality of pairs of magnetic steels 4 arranged along the circumference, for example, the magnetic steels are accommodated in the openings in the rotor core. Each pair of magnetic steels 4 consists of two magnetic steels, one magnetic steel is arranged close to the outer armature 1, one magnetic steel is arranged close to the inner armature 3, and the two paired magnetic steels are parallel to each other and are arranged oppositely. The magnetic field direction of each magnetic steel is radial (refer to fig. 5-7), and the magnetic steels on the same circumference are arranged according to N, S poles in an alternating mode. In the same radial position of the rotor magnetic poles, namely, the position of each pair of magnetic steels corresponds to one rotor magnetic pole, the magnetic field polarity of the outer circumference of the rotor is opposite to that of the inner circumference.
Specifically, a plurality of magnetic steels close to the outer armature 1 are arranged at equal intervals along the circumferential direction to form an outer magnetic steel ring; a plurality of magnetic steels close to the inner armature 3 are arranged at equal intervals along the circumferential direction to form an inner magnetic steel ring. Taking the three pairs of magnetic steels shown in fig. 3 as an example, when the magnetic field polarity of the magnetic steel positioned at the outer magnetic steel ring in the first pair of magnetic steels is N-S (N is far away from the axis direction, and S is close to the axis direction), the magnetic field polarity of the magnetic steel positioned at the inner magnetic steel ring in the first pair of magnetic steels is N-S (N is far away from the axis direction, and S is close to the axis direction); the magnetic field polarity of the magnetic steel positioned at the outer magnetic steel ring in the adjacent second pair of magnetic steels is S-N (S is far away from the axis direction, and N is close to the axis direction), and the magnetic field polarity of the magnetic steel positioned at the inner magnetic steel ring in the adjacent second pair of magnetic steels is S-N (S is far away from the axis direction, and N is close to the axis direction); the magnetic field polarity of the magnetic steel positioned at the outer magnetic steel ring in the third pair of magnetic steels is N-S (N is far away from the axis direction, and S is close to the axis direction), and the magnetic field polarity of the magnetic steel positioned at the inner magnetic steel ring in the third pair of magnetic steels is N-S (N is far away from the axis direction, and S is close to the axis direction). The magnetic field polarity of each pair of magnetic steels on the outer circle surface of the rotor is opposite to the magnetic field polarity of the inner circle surface of the rotor.
Each magnetic steel is composed of one or two or more square sub-magnetic steels, and the magnetic field directions of all the sub-magnetic steels under the same magnetic pole are the same. Taking the first pair of magnetic steels in fig. 3 as an example, the magnetic steel positioned at the inner magnetic steel ring in the first pair of magnetic steels is composed of two sub-magnetic steels, and the magnetic field polarities of the two sub-magnetic steels are both N-S (N is far from the axis direction, and S is close to the axis direction). Equivalently, a whole magnetic steel is cut into several pieces of sub-magnetic steel which are arranged side by side. Therefore, on the premise that the magnetic field directions of all the sub-magnetic steels under the same magnetic pole are the same, each magnetic steel can be composed of different numbers of sub-magnetic steels.
The inner armature 3 is circumferentially provided with a plurality of inner stator teeth 31. The outer armature 1 is provided with a plurality of outer stator teeth 11 along the circumference. The number of inner stator teeth 31 is equal to the number of outer stator teeth 11. The inner stator teeth 31 and the outer stator teeth 11 have the same winding mode of coils, and can be both concentrated windings. The cross section of the winding wound by the enameled wire on the inner armature is equal to that of the winding wound by the enameled wire on the outer armature. The equal cross-sectional areas include completely equal and approximately equal. The outer stator teeth 11 on the outer armature 1 are wider than the inner stator teeth 31 on the inner armature 3, and the number of turns of the winding on the outer armature is greater than the number of turns of the winding on the inner armature.
To ensure that the magnetic circuit is formed uniformly, each inner stator tooth 31 is aligned with one outer stator tooth 11. Referring to fig. 3 and 4, the outer winding coil (inner armature coil 32) of the inner stator teeth 31 and the outer winding coil (outer armature coil 12) of the outer stator teeth 11 aligned with the inner stator teeth 31 are connected in series by the inner and outer armature coil transition lines 10. Or each inner fixed tooth and one outer stator tooth are staggered with each other by half the tooth width. The coil wound outside the inner stator teeth and the coil wound outside the outer stator teeth corresponding to the inner stator teeth are connected in series through inner and outer armature coil transition lines. The outgoing line 20 of the central point of the inner armature coil and the outer armature coil is arranged at the tail end of the inner armature coil 32 and is used for welding a bus bar 5 arranged on the inner armature; the inner and outer armature coil outer lead wires 30 are provided at the top end of the outer armature. The outgoing line of the central point of the inner armature coil and the outgoing line of the central point of the outer armature coil are used as the outgoing lines of the tail end central point of a three-phase winding of the motor, and the outgoing lines of the outer armature coil and the inner armature coil are used as the outgoing lines of the three-. When three-phase alternating current is introduced to a three-phase winding of the motor, the rotor rotates, and a space rotating magnetic field is generated between the rotor and the double armature.
For facilitating coil mounting, the inner armature 3 and the outer armature 1 are provided with notches of larger size, that is, an inner notch 33 is arranged between adjacent inner stator teeth on the inner armature, an outer notch 13 is arranged between adjacent outer stator teeth on the outer armature, and the inner notch 33 is used for accommodating a coil sleeved on the inner stator teeth 31; the outer slots 13 are used for accommodating coils sleeved on the outer stator teeth 11. Thus, the coils can be directly sleeved on the teeth.
In the example shown in fig. 1, one pair of magnetic steels 4 of adjacent pairs of magnetic steels can overlap both the two outer stator teeth 11 of the outer armature 1 and both the two inner stator teeth 31 of the inner armature 3. The other pair of magnetic steels 4 of the adjacent pair of magnetic steels 4 can be overlapped with the outer notches 13 at both sides of one outer stator tooth 11 on the outer armature 1 at the same time, and can be overlapped with the inner notches 33 at both sides of one inner stator tooth 31 on the inner armature 3 at the same time.
As shown in fig. 5, when the motor is in no-load, the magnetic steel inside the rotor is used for excitation, the magnetic line of force of the motor passes through the gap between the rotor and the outer armature from the N pole of the outer circumferential surface of the rotor, enters the different teeth and the yoke of the outer armature, returns to the gap between the rotor and the outer armature, enters the S pole of the outer circumferential surface of the rotor, passes through the N pole of the inner circumferential surface of the rotor, then passes through the gap between the rotor and the inner armature, enters the different teeth and the yoke of the inner armature, returns to the gap between the rotor and the inner armature, then enters the S pole of the inner rotor, and finally passes through the magnetic steel inside the rotor and reaches. When the rotor rotates, the magnetic field changes are induced in the inner and outer armature windings to generate counter-electromotive force.
When the motor is loaded with a large torque section, the load magnetic line simulation graph 6 shows that: the magnetic line of force of outer armature mostly passes through the inner stator and constitutes magnetic line of force return circuit, has increased the magnetic line of force that some magnetic flux passes through the quadrature axis magnetic circuit formation of embedded rotor not passing through the inner stator relative to no-load magnetic circuit. The effective magnetism increasing effect of the concentrated winding motor is realized, and conditions are created for improving the torque density of the motor.
When the motor is in the field weakening accelerating section, the load magnetic line simulation figure 7 shows that: because the inner armature and the outer armature are shared, the weak magnetic potential directly acts on a single magnetic pole, the leakage reactance between different phases of the single armature motor is avoided, the power factor and the constant power weak magnetic characteristic of the high-speed weak magnetic of the motor are improved, and the motor has excellent controllability.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. A permanent magnet synchronous motor with a double-armature radial magnetic circuit structure comprises a rotor, an outer armature arranged on the outer side of the rotor and an inner armature arranged on the inner side of the rotor; the outer armature and the inner armature are both arranged concentrically with the rotor, and gaps are provided between the outer armature and the rotor and between the inner armature and the rotor; the rotor is characterized in that a plurality of pairs of magnetic steels arranged along the circumference are embedded in a rotor core of the rotor; the magnetic field direction of each piece of magnetic steel is radial, and the magnetic steels on the same circumference are arranged in an N, S-pole alternating mode; at the same radial position of the rotor poles, the polarity of the magnetic field at the outer circumference of the rotor is opposite to the polarity of the magnetic field at the inner circumference.
2. The PMSM with double-armature radial magnetic circuit structure according to claim 1, wherein each magnet steel is composed of one or two or more square sub-magnet steels, and the magnetic field directions of all the sub-magnet steels under the same magnetic pole are the same.
3. A pmsm with a dual armature radial flux structure as claimed in claim 1, wherein said inner armature is circumferentially provided with a plurality of inner stator teeth; the outer armature is provided with a plurality of outer stator teeth along the circumference; the number of inner stator teeth is equal to the number of outer stator teeth.
4. A pmsm according to claim 3, wherein each inner stator tooth is aligned with one outer stator tooth; or each inner fixed tooth and one outer stator tooth are staggered with each other by half the tooth width.
5. A PMSM with a dual-armature radial magnetic circuit structure as claimed in claim 4, wherein the coils wound outside the inner stator teeth and the coils wound outside the outer stator teeth corresponding to the inner stator teeth are connected in series by the transition lines of the inner and outer armature coils.
6. A PMSM with a dual-armature radial magnetic circuit structure as claimed in claim 5, characterized in that the central point of the end of the three-phase winding of the motor is connected to the bus bar on the inner armature, and the outgoing lines of the three-phase winding of the motor are led out from the outer armature side.
7. A pmsm according to claim 3, wherein the inner armature and the outer armature both use concentrated windings.
8. The PMSM with dual-armature radial magnetic circuit structure according to claim 3, wherein a cross-sectional area of a winding wound by enameled wires on the inner armature is equal to a cross-sectional area of a winding wound by enameled wires on the outer armature.
9. A pm synchronous machine with a dual armature radial magnetic circuit structure as set forth in claim 8, wherein the size of the outer stator teeth on said outer armature is wider than the size of the inner stator teeth on said inner armature, and the number of coil turns of the winding on said outer armature is larger than the number of coil turns of the winding on said inner armature.
10. A pmsm according to claim 3, wherein the adjacent inner stator teeth of the inner armature have inner slots therebetween for receiving coils fitted around the inner stator teeth; and an outer notch is arranged between adjacent outer stator teeth on the outer armature and is used for accommodating a coil sleeved on the outer stator teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392048.7A CN111478470A (en) | 2020-05-11 | 2020-05-11 | Permanent magnet synchronous motor with double-armature radial magnetic circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392048.7A CN111478470A (en) | 2020-05-11 | 2020-05-11 | Permanent magnet synchronous motor with double-armature radial magnetic circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111478470A true CN111478470A (en) | 2020-07-31 |
Family
ID=71763150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010392048.7A Pending CN111478470A (en) | 2020-05-11 | 2020-05-11 | Permanent magnet synchronous motor with double-armature radial magnetic circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111478470A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865379A (en) * | 2021-01-19 | 2021-05-28 | 丁正民 | Hollow cup motor, armature winding thereof, armature winding unit and manufacturing method thereof |
| CN113517795A (en) * | 2021-09-07 | 2021-10-19 | 北京精雕科技集团有限公司 | Rotating electric machine |
| CN114006489A (en) * | 2021-10-18 | 2022-02-01 | 南京航空航天大学 | Direct-drive alternating-pole permanent magnet hub motor |
-
2020
- 2020-05-11 CN CN202010392048.7A patent/CN111478470A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865379A (en) * | 2021-01-19 | 2021-05-28 | 丁正民 | Hollow cup motor, armature winding thereof, armature winding unit and manufacturing method thereof |
| CN113517795A (en) * | 2021-09-07 | 2021-10-19 | 北京精雕科技集团有限公司 | Rotating electric machine |
| CN114006489A (en) * | 2021-10-18 | 2022-02-01 | 南京航空航天大学 | Direct-drive alternating-pole permanent magnet hub motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108964396B (en) | Stator partition type alternate pole hybrid excitation motor | |
| CN111478470A (en) | Permanent magnet synchronous motor with double-armature radial magnetic circuit structure | |
| CN104882978A (en) | Low-torque-ripple high-efficient permanent magnetic motor stator and rotor structure | |
| CN102025238A (en) | Novel limited rotating angle direct-current moment motor | |
| CN105656228A (en) | Transverse flux permanent magnet motor | |
| CN113178961B (en) | Axial modularized magnetic flux reversing motor | |
| CN108964388B (en) | Switched reluctance motor | |
| CN205081652U (en) | Armature winding high power density mixed excitation permanent magnet motor of annular yoke portion | |
| CN108631531B (en) | Hybrid excitation switch reluctance hub motor for electric automobile | |
| CN212033854U (en) | Permanent magnet synchronous motor with double-armature radial magnetic circuit structure | |
| CN108900052A (en) | A kind of 6/5 pole switching reluctance motor | |
| CN110994839B (en) | Electric motor rotor and alternating-pole electric motor | |
| CN106100272B (en) | A kind of double-salient-pole magnetic flux controllable motor of few rare earth tooth yoke complementation | |
| CN210405045U (en) | Axial parallel composite motor | |
| CN109038871B (en) | Switched reluctance motor with segmented rotor | |
| CN105915007B (en) | A kind of reluctance type disc type electric machine | |
| CN210608875U (en) | Radial magnetic field composite magnetic flux switching motor | |
| CN105490481B (en) | A kind of high torque density polydisc-more air gaps axial direction flux field modulation magneto | |
| CN210041604U (en) | 24 groove 10 utmost point axial magnetic current motor and electric vehicle | |
| CN110391723B (en) | 24-slot 10-pole axial flux motor and electric vehicle | |
| CN115603536A (en) | Double-stator hybrid excitation flux reverse motor based on direct current bias | |
| CN210142972U (en) | High-reluctance torque concentrated winding brushless motor | |
| CN108900053B (en) | 9/8 pole switch reluctance motor | |
| CN110601474A (en) | Radial magnetic field composite flux switching motor | |
| CN201985636U (en) | Modularized magnetic flux switching permanent magnet motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |