CN110323856A - A kind of space flight high-power density permanent magnetic AC servo motor - Google Patents
A kind of space flight high-power density permanent magnetic AC servo motor Download PDFInfo
- Publication number
- CN110323856A CN110323856A CN201910600186.7A CN201910600186A CN110323856A CN 110323856 A CN110323856 A CN 110323856A CN 201910600186 A CN201910600186 A CN 201910600186A CN 110323856 A CN110323856 A CN 110323856A
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- CN
- China
- Prior art keywords
- magnet steel
- slot
- winding
- motor shaft
- stator
- 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.)
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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
- H02K1/12—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
- H02K1/2706—Inner rotors
- H02K1/2713—Inner rotors the magnetisation axis of the magnets being axial, e.g. claw-pole type
-
- 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
-
- 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
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/12—Transversal flux machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The present invention provides a kind of space flight high-power density permanent magnetic AC servo motor, including stator core, the motor shaft of mandrel line therethrough is provided within stator core, several magnet steel are bonded on motor shaft outer peripheral surface, stator core includes the rotor punching together with motor shaft coaxial package, stator punching is closed ring structure, the multiple slot for windings being connected to inner circumferential surface are provided on stator punching, each slot for winding width of rebate is less than its winding slot bottom width, is equipped with stator winding within slot for winding.Using technical solution of the present invention, slot for winding trough rim parallel construction common in the art is changed to the nonlinear organization that slot for winding width of rebate is less than slot bottom width, and the main magnet steel of classification setting and auxiliary magnet steel on motor shaft outer peripheral surface, improve the utilization rate of main magnet steel, so that rotor is obtained better magnetic property, improves output power of motor and reliability.
Description
Technical field
The invention belongs to technical field of motors, especially relate to a kind of space flight high-power density permanent magnetic AC servo motor.
Background technique
As permanent magnet motor is using more and more extensive, to the volume of permanent magnet motor, cost, performance, reliability etc.
It is required that also higher and higher.Although the technology and manufacturing process of present permanent magnet motor are highly developed, in magnetic structure, rotor knot
There is also many problems in terms of structure and manufacturing process, cause motor material at high cost, complex rotor structure, and process costs are high, can
It is poor by property, it is unfavorable for the popularization and application of permanent magnet motor.
In aerospace industry field, applied to the wanting to the power density of motor of all kinds of Mechatronic Systems in aerospace industry
Ask high, however, the utilization rate deficiency of material and the ability of magnetic material are the main bottlenecks that limiting motor power density improves,
Therefore, it there is an urgent need to research and develop novel motor rotor construction, on the basis of making full use of material property, obtains and exceeds current material
The performance of material, and can adapt to the demand of aerospace system, to obtain better motor performance.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of space flight high-power density permanent magnetic AC servo motors.
The present invention is achieved by the following technical programs.
The present invention provides a kind of space flight high-power density permanent magnetic AC servo motor, mainly includes stator core, described
It is provided with the motor shaft of mandrel line therethrough within stator core, is bonded with several magnet steel on the motor shaft outer peripheral surface,
The stator core further includes the stator punching together with the motor shaft coaxial package, and the stator punching is closed ring
Structure is provided with the multiple slot for windings being connected to inner circumferential surface on the stator punching, and each slot for winding width of rebate is less than
Its slot for winding slot bottom width is equipped with stator winding within the slot for winding.
The multiple winding groove shape, size are all the same.
Mounting groove corresponding with the magnet steel shape, size is provided on the motor shaft outer peripheral surface, the magnet steel is solid
Surely it is bonded within corresponding mounting groove.
The magnet steel being bonded on motor shaft outer peripheral surface is divided into main magnet steel and auxiliary magnet steel, and main magnet steel refers to its magnetic line of force
Along the magnet steel that the motor shaft radial direction extends, auxiliary magnet steel refers to that its magnetic line of force prolongs along the motor shaft axial direction
The magnet steel stretched, main magnet steel quantity are greater than auxiliary magnet steel quantity.
The main magnet steel shape size and the auxiliary magnet steel shape size be not identical.
The rotor windings deployment way is the winding connection of double 30 ° of differential seat angle of three-phase electricities.
The beneficial effects of the present invention are: technical solution of the present invention is used, by slot for winding slot common in the art
Side parallel construction is changed to the nonlinear organization that slot for winding width of rebate is less than slot bottom width, and will be bonded in motor shaft outer peripheral surface
On magnet steel according to the classification of its magnetic line of force extending direction be main magnet steel and auxiliary magnet steel, main magnet steel is for being provided as and winding coupled
Magnetic field magnetize, assist channel of the magnet steel as magnetic field short circuit, reduce the loss in magnetic field, improve the utilization rate of main magnet steel,
In favor of making rotor obtain better magnetic property, the output power of motor is improved, according to test, by improved magnetic circuit phase
Than the prior art, magnetic flux can promote 1.4 times or more, can be promoted, in addition, rotor windings are by using double three-phase electricity differential seat angles
30 ° of winding connection improves machine winding breadth coefficient, further improves the reliability of motor, after tested, uses
Permanent-magnet alternating current servo motor of the invention, output power are able to ascend 10% or more compared with prior art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of stator punching of the present invention；
Fig. 2 is motor shaft and magnet steel attachment structure schematic diagram of the present invention along motor shaft radial direction cutting；
Fig. 3 is motor shaft and magnet steel attachment structure schematic diagram of the present invention along motor shaft axial direction cutting.
In figure: 1- motor shaft, 2- stator punching, the main magnet steel of 3-, 4- assist magnet steel, 21- slot for winding.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
As shown in Figure 1, Figure 2 and Figure 3, the present invention provides a kind of space flight high-power density permanent magnetic AC servo motor, packet
Stator core is included, the motor shaft 1 of mandrel line therethrough is provided within stator core, if being bonded on 1 outer peripheral surface of motor shaft
Dry magnet steel, stator core further include the rotor punching 2 together with 1 coaxial package of motor shaft, and stator punching 2 is closed ring
Structure is provided with the multiple slot for windings 21 being connected to inner circumferential surface on stator punching 2, and each 21 width of rebate of slot for winding is less than
Its 21 slot bottom width of slot for winding is equipped with rotor windings within slot for winding 21.
Using technical solution of the present invention, slot for winding trough rim parallel construction common in the art is changed to slot for winding slot
Mouth width degree is less than the nonlinear organization of slot bottom width, and the magnet steel being bonded on motor shaft outer peripheral surface is prolonged according to its magnetic line of force
Stretching direction classification is main magnet steel and auxiliary magnet steel, and main magnet steel assists magnetic for being provided as magnetizing with the magnetic field of winding coupled
Channel of the steel as magnetic field short circuit, reduces the loss in magnetic field, improves the utilization rate of main magnet steel, in favor of obtaining rotor more
Good magnetic property, improves the output power of motor, according to test, compared with prior art by improved magnetic circuit, magnetic flux can
1.4 times or more are promoted, can be promoted, in addition, winding connection of the rotor windings by using 30 ° of double three-phase electricity differential seat angles, makes
Machine winding breadth coefficient improves, and the reliability of motor is further improved, after tested, using permanent magnetic Ac servo of the invention
Motor, output power are able to ascend 10% or more compared with prior art.
Further, multiple 21 shapes of slot for winding, size are all the same.
In addition, mounting groove corresponding with magnet steel shape, size is provided on 1 outer peripheral surface of motor shaft, the fixed bonding of magnet steel
Within corresponding mounting groove.Using technical solution of the present invention, by the way that magnet steel to be bonded within mounting groove, magnetic can be prevented
Being broken or skidding occur during the bonding process in steel, improves the reliability of motor stator core.
Further, the magnet steel being bonded on 1 outer peripheral surface of motor shaft is divided into main magnet steel 3 and auxiliary magnet steel 4, and main magnet steel 3 is
Refer to that the magnet steel that its magnetic line of force extends along 1 radial direction of motor shaft, auxiliary magnet steel 4 refer to that its magnetic line of force is axial along motor shaft 1
The magnet steel that direction extends, main 3 quantity of magnet steel are greater than auxiliary 4 quantity of magnet steel.It is preferred that outside main 3 shape size of magnet steel and auxiliary magnet steel 4
Shape size is not identical.Using technical solution of the present invention, assisting magnet steel and main magnet steel, there are stronger repulsion, assist magnet steel general
Small volume is conducive to enable main magnet steel to the maximum extent to magnetize with the magnetic field of winding coupled, to improve main magnetic
The utilization efficiency of steel promotes the magnetic flux of rotor main field.
In addition, stator winding deployment way is the winding connection of double 30 ° of differential seat angle of three-phase electricities.In the prior art, it navigates
Motor used in all kinds of Mechatronic Systems generally uses six state motor of three-phase in its industrial circle, and winding is powered using three-phase
Method, this method reliability is low, and power output capacity is limited, to improve motor reliability and improving output power of motor, this
For motor stator winding provided by inventing using the winding connection of double 30 ° of differential seat angle of three-phase electricities, the program is Redundancy Design
Scheme, has preferable reliability, and machine winding breadth coefficient is improved, is computed, output power is able to ascend 10%.
Claims (6)
1. a kind of space flight high-power density permanent magnetic AC servo motor, it is characterised in that: including stator core, the stator iron
It is provided with the motor shaft (1) of mandrel line therethrough within core, is bonded with several magnet steel on motor shaft (1) outer peripheral surface,
The stator core further includes the stator punching (2) together with the motor shaft (1) coaxial package, the stator punching (2)
For closed ring structure, be provided with the multiple slot for windings (21) being connected to inner circumferential surface on the stator punching (2), each around
Group slot (21) width of rebate is less than its slot for winding (21) slot bottom width, is equipped with stator winding within the slot for winding (21).
2. space flight as described in claim 1 high-power density permanent magnetic AC servo motor, it is characterised in that: it is the multiple around
Group slot (21) shape, size are all the same.
3. space flight as described in claim 1 high-power density permanent magnetic AC servo motor, it is characterised in that: the motor shaft
(1) mounting groove corresponding with the magnet steel shape, size is provided on outer peripheral surface, the magnet steel fixation is bonded in corresponding peace
Within tankage.
4. space flight as described in claim 1 high-power density permanent magnetic AC servo motor, it is characterised in that: described to be bonded in
Magnet steel on motor shaft (1) outer peripheral surface is divided into main magnet steel (3) and auxiliary magnet steel (4), and main magnet steel (3) refers to its magnetic line of force along institute
The magnet steel of motor shaft (1) radial direction extension is stated, auxiliary magnet steel (4) refers to its magnetic line of force along the motor shaft (1) axial direction side
To the magnet steel of extension, main magnet steel (3) quantity is greater than auxiliary magnet steel (4) quantity.
5. space flight as claimed in claim 4 high-power density permanent magnetic AC servo motor, it is characterised in that: the main magnet steel
(3) shape size and auxiliary magnet steel (4) the shape size be not identical.
6. space flight as claimed in claim 4 high-power density permanent magnetic AC servo motor, it is characterised in that: the stator around
Group deployment way is the winding connection of double 30 ° of differential seat angle of three-phase electricities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600186.7A CN110323856A (en) | 2019-07-04 | 2019-07-04 | A kind of space flight high-power density permanent magnetic AC servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600186.7A CN110323856A (en) | 2019-07-04 | 2019-07-04 | A kind of space flight high-power density permanent magnetic AC servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110323856A true CN110323856A (en) | 2019-10-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910600186.7A Pending CN110323856A (en) | 2019-07-04 | 2019-07-04 | A kind of space flight high-power density permanent magnetic AC servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110323856A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110241470A1 (en) * | 2007-10-02 | 2011-10-06 | Seiko Epson Corporation | Brushless electric machine |
| CN102570654A (en) * | 2010-11-11 | 2012-07-11 | 阿斯莫有限公司 | A rotor and a motor |
| CN108768129A (en) * | 2018-06-08 | 2018-11-06 | 浙江大学 | High thrust double three-phase permanent-magnetic linear synchronized motor for cordless elevator lifting system |
| CN109639002A (en) * | 2019-01-18 | 2019-04-16 | 南京航空航天大学 | A kind of rotor structure of permanent magnet synchronous motor |
-
2019
- 2019-07-04 CN CN201910600186.7A patent/CN110323856A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110241470A1 (en) * | 2007-10-02 | 2011-10-06 | Seiko Epson Corporation | Brushless electric machine |
| CN102570654A (en) * | 2010-11-11 | 2012-07-11 | 阿斯莫有限公司 | A rotor and a motor |
| CN108768129A (en) * | 2018-06-08 | 2018-11-06 | 浙江大学 | High thrust double three-phase permanent-magnetic linear synchronized motor for cordless elevator lifting system |
| CN109639002A (en) * | 2019-01-18 | 2019-04-16 | 南京航空航天大学 | A kind of rotor structure of permanent magnet synchronous motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191011 |