CN107666194A - Suitable for the rotor structure of composite stepper motor - Google Patents
Suitable for the rotor structure of composite stepper motor Download PDFInfo
- Publication number
- CN107666194A CN107666194A CN201711072855.5A CN201711072855A CN107666194A CN 107666194 A CN107666194 A CN 107666194A CN 201711072855 A CN201711072855 A CN 201711072855A CN 107666194 A CN107666194 A CN 107666194A
- Authority
- CN
- China
- Prior art keywords
- rotor
- ring
- stepper motor
- composite stepper
- rotor yoke
- 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
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
- H02K1/278—Surface mounted magnets; Inset magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of rotor structure suitable for composite stepper motor, including stator core, multistage magnet ring, rotor yoke and rotating shaft, rotor yoke is ring-type, and multistage magnet ring is tightly placed in rotor yoke outer shroud and fastened, stator core is cased with outside multistage magnet ring, rotating shaft is through rotor yoke inner ring and fastens.The pure dead section of rotor, i.e. rotor length in conventional rotor configuration shared by axial charging permanent magnet is not present in rotor structure of the present invention, further improves composite stepper motor operating efficiency；Structure is extremely simple, it is possible to increase production efficiency, reduces production cost and can directly substitute conventional rotor configuration used by all existing composite stepper motors.
Description
Technical field
The invention belongs to composite stepper motor technical field, and in particular to a kind of to turn suitable for composite stepper motor
Minor structure.
Background technology
Traditional rotor structure suitable for composite stepper motor, as depicted in figs. 1 and 2, traditional hybrid stepping
Rotor is made up of multipiece rotor iron core 2, stator core 1, the permanent magnet 3 of axial charging and rotating shaft 4, two kinds of rotor cores 2
Structure and the structure of stator core 1 joined together are completely the same, can directly replace, double-head arrow direction filling for permanent magnet 3 in figure
Magnetic direction, rotor core 2 are overrided to form by punching, cylindrical to carry small tooth, and two-stage rotor iron core 2 also needs to stagger partly when mounted
Individual tooth pitch.
Traditional rotor structure uses permanent magnet axial charging, and extremely strong leakage field phenomenon, i.e. motor two is presented in motor both ends
Single polarity is presented in end respectively, and the magnetic line of force does not have loop in divergent shape, therefore can be to the magnetic susceptibility in stepper motor application system
Element impacts the application so as to restrict composite stepper motor in magnetic susceptibility occasion.
The content of the invention
It is an object of the invention to provide a kind of rotor structure suitable for composite stepper motor, solves existing hybrid
Easily there is the problem of leakage field influences magnet-sensitive element in motor in stepping motor rotor.
The technical solution adopted in the present invention is, suitable for the rotor structure of composite stepper motor, including stator core,
Multistage magnet ring, rotor yoke and rotating shaft, rotor yoke are ring-type, and multistage magnet ring is tightly placed in rotor yoke outer shroud and fastened, outside multistage magnet ring
Stator core is cased with, rotating shaft is through rotor yoke inner ring and fastens.
The features of the present invention also resides in,
Multi-pole magnet-ring magnetizes to be radially continuous, and the outer circular polarity of multi-pole magnet-ring is presented N, S pole and is alternately distributed.
Multi-pole magnet-ring external magnetic circuit is respectively formed closed magnetic circuit by stator core, multi-pole magnet-ring internal magnetic circuit by rotor yoke.
The trapezoid magnet piece that multi-pole magnet-ring is radially magnetized by multi-disc around bonding into.
Rotor yoke is magnetic conductor.
The beneficial effect of rotor structure that the present invention is applied to composite stepper motor is：
The pure dead section of rotor is not present in rotor structure, i.e., turns in conventional rotor configuration shared by axial charging permanent magnet
Sub- length, further improve composite stepper motor operating efficiency；
It can realize that multi-pole magnet-ring magnetic field directly acts on motor gas-gap, rather than as axially being filled in traditional rotor structure
The magnetic field of permanent magnet of magnetic is remake after being conducted by rotor core for motor gas-gap, directly enhances the gas of composite stepper motor
Gap magnetic is close, improves composite stepper motor operating efficiency, has greatly widened composite stepper motor in servo-drive field
Application, while avoid traditional composite stepper motor using both ends leakage field caused by axial magnetic field rotor structure to being
Magnet-sensitive element in system impacts the application so as to restrict composite stepper motor in magnetic susceptibility occasion；
Structure is extremely simple, it is possible to increase production efficiency, reduces production cost and can directly substitute all existing mixing
Conventional rotor configuration used by formula stepper motor；
Multi-pole magnet-ring carries out size design by the conventional hybrid formula stepping motor rotor of required replacement and the number of poles that magnetizes is chosen
After can directly substitute, step motor stator need not do any change.
Brief description of the drawings
Fig. 1 is the structural representation of traditional composite stepper motor rotor；
Fig. 2 is the cross-sectional view of traditional composite stepper motor rotor；
Fig. 3 is the structural representation for the rotor structure that the present invention is applied to composite stepper motor；
Fig. 4 is the cross-sectional view for the rotor structure that the present invention is applied to composite stepper motor；
Fig. 5 is the section partial enlarged drawing for the rotor structure that the present invention is applied to composite stepper motor.
In figure, 1. stator cores, 2. multi-pole magnet-rings, 3. rotor yokes, 4. rotating shafts.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
The present invention is applied to the rotor structure of composite stepper motor, as shown in Figure 3-Figure 5, including stator core 1, multistage
Magnet ring 2, rotor yoke 3 and rotating shaft 4, rotor yoke 3 are ring-type, and multistage magnet ring 2 is tightly placed in the outer shroud of rotor yoke 3 and fastened, multistage magnet ring 2
Outer to be cased with stator core 1, rotating shaft 4 is through the inner ring of rotor yoke 3 and fastens.
Multi-pole magnet-ring 2 magnetizes to be radially continuous, and 2 outer circular polarity of multi-pole magnet-ring is presented N, S pole and is alternately distributed.
The external magnetic circuit of multi-pole magnet-ring 2 is respectively formed closed magnetic by stator core 1, the internal magnetic circuit of multi-pole magnet-ring 2 by rotor yoke 3
Road.
The trapezoid magnet piece that multi-pole magnet-ring 2 is radially magnetized by multi-disc around bonding into.
Rotor yoke 3 is magnetic conductor.
The present invention is applied to the rotor structure of composite stepper motor, and novel mixed stepping motor rotor is by multi-pole magnet-ring
2nd, rotor yoke 3, rotating shaft 4 form, compared with traditional composite stepper motor rotor, the stator iron joined together by both rotor structures
Core structure is completely the same, can directly replace, and double-head arrow direction is the magnetizing direction of multi-pole magnet-ring 2 in Fig. 3, and Fig. 5 part is put
Big figure is the magnetic distribution of multi-pole magnet-ring 2, and multi-pole magnet-ring 2, rotor yoke 3 are integral structure, easy to process.
The multi-pole magnet-ring 2 of multipole radial magnetizing substitutes traditional multisection type punching and laminates the permanent magnet that accompanies axial charging
Multiple tooth rotor core structure, rotor yoke 3 play a part of turning on the inside magnetic circuit of multi-pole magnet-ring 2, pass through the external magnetic circuit of multi-pole magnet-ring 2
Step motor stator iron core 1, internal magnetic circuit form closed magnetic circuit by rotor yoke 3, and the both ends of multi-pole magnet-ring 2 have the magnetic being distributed in pairs
Polarity, closed end magnetic circuit itself is formd, therefore do not presented substantially externally using the composite stepper motor of the rotor structure
Leakage field phenomenon.
Multi-pole magnet-ring 2 magnetizes number of poles depending on its conventional rotors to be substituted iron core number of teeth, when the biography to be substituted
When the rotor core number of teeth of uniting is 50, the number of poles magnetic pole number that magnetizes of multi-pole magnet-ring 2 is 100, i.e. 2 outer circular polarity of multi-pole magnet-ring is presented
N, S poles are alternately distributed, totally 100 pole.When the conventional rotors iron core number of teeth to be substituted is 100, the number of poles that magnetizes of multi-pole magnet-ring 2
For 200, i.e., 2 outer circular polarity of multi-pole magnet-ring is presented N, S pole and is alternately distributed, totally 200 pole.That is the number of poles that magnetizes of multi-pole magnet-ring 2 is it
2 times of the conventional rotors iron core number of teeth to be substituted.
The overall length of multi-pole magnet-ring 2 is radially continuous to magnetize, it is not necessary to as tradition is applied to the rotor structure of composite stepper motor
Segmentation side set is equally carried out, can directly substitute conventional rotor configuration used by all existing composite stepper motors, stepping
Motor stator need not do any change.
Conventional rotors iron core is due to the only now half number of teeth of structure, work during work and this half number of teeth, institute
Also only show the half of structure in theory with performance.
The rotor yoke 3 and rotating shaft 4 that the present invention is made with the multi-pole magnet-ring 2 of multipole magnetization, permeability magnetic material form a kind of footpath
To the hybrid type stepping motor rotor structure in magnetic field.Traditional hybrid type stepping motor can be worked using the rotor structure
Efficiency is enhanced about more than once on year-on-year basis, has greatly widened application of the composite stepper motor in servo-drive field, has avoided simultaneously
When traditional composite stepper motor uses axial magnetic field rotor structure, caused both ends leakage field is to the magnetic susceptibility member in system
Part impacts the application so as to restrict composite stepper motor in magnetic susceptibility occasion.
Rotor structure of the present invention is extremely simple, it is possible to increase production efficiency, reduces production cost and can directly substitute institute
There is conventional rotor configuration used by existing composite stepper motor.
Claims (5)
1. suitable for composite stepper motor rotor structure, it is characterised in that including stator core (1), multistage magnet ring (2),
Rotor yoke (3) and rotating shaft (4), the rotor yoke (3) are ring-type, and the multistage magnet ring (2) is tightly placed in rotor yoke (3) outer shroud and tight
Gu being cased with stator core (1) outside the multistage magnet ring (2), the rotating shaft (4) is through rotor yoke (3) inner ring and fastens.
2. the rotor structure according to claim 1 suitable for composite stepper motor, it is characterised in that the multipole magnetic
Ring (2) magnetizes to be radially continuous, and the outer circular polarity of multi-pole magnet-ring (2) is presented N, S pole and is alternately distributed.
3. the rotor structure according to claim 2 suitable for composite stepper motor, it is characterised in that the multipole magnetic
Ring (2) external magnetic circuit is respectively formed closed magnetic circuit by stator core (1), the multi-pole magnet-ring (2) internal magnetic circuit by rotor yoke (3).
4. the rotor structure according to claim 1 suitable for composite stepper motor, it is characterised in that the multipole magnetic
The trapezoid magnet piece that ring (2) is radially magnetized by multi-disc around bonding into.
5. the rotor structure according to claim 1 suitable for composite stepper motor, it is characterised in that the rotor yoke
(3) it is magnetic conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072855.5A CN107666194A (en) | 2017-11-03 | 2017-11-03 | Suitable for the rotor structure of composite stepper motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072855.5A CN107666194A (en) | 2017-11-03 | 2017-11-03 | Suitable for the rotor structure of composite stepper motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107666194A true CN107666194A (en) | 2018-02-06 |
Family
ID=61144408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711072855.5A Pending CN107666194A (en) | 2017-11-03 | 2017-11-03 | Suitable for the rotor structure of composite stepper motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107666194A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347232A (en) * | 2018-12-11 | 2019-02-15 | 西安航天动力测控技术研究所 | A kind of composite stepper motor rotor structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5386161A (en) * | 1992-04-20 | 1995-01-31 | Japan Servo Co., Ltd. | Permanent magnet stepping motor |
| CN1379533A (en) * | 2001-03-30 | 2002-11-13 | 日本伺服株式会社 | Premanent magnet electric machine |
| CN2599854Y (en) * | 2003-02-16 | 2004-01-14 | 吴文胜 | Anisotropic ferrite multipolar magnetic ring |
| CN202384872U (en) * | 2011-12-30 | 2012-08-15 | 台州德弗传动科技有限公司 | Multi-pole magnetic ring rotor of servo motor |
-
2017
- 2017-11-03 CN CN201711072855.5A patent/CN107666194A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5386161A (en) * | 1992-04-20 | 1995-01-31 | Japan Servo Co., Ltd. | Permanent magnet stepping motor |
| CN1379533A (en) * | 2001-03-30 | 2002-11-13 | 日本伺服株式会社 | Premanent magnet electric machine |
| CN2599854Y (en) * | 2003-02-16 | 2004-01-14 | 吴文胜 | Anisotropic ferrite multipolar magnetic ring |
| CN202384872U (en) * | 2011-12-30 | 2012-08-15 | 台州德弗传动科技有限公司 | Multi-pole magnetic ring rotor of servo motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347232A (en) * | 2018-12-11 | 2019-02-15 | 西安航天动力测控技术研究所 | A kind of composite stepper motor rotor structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8860272B2 (en) | Synchronous generator, especially for wind turbines | |
| CN101795048B (en) | Cylindrical permanent magnet linear motor with high thrust density | |
| CN106104973B (en) | The rotor of permanent magnet-type motor | |
| CN201975870U (en) | Ferrite three-phase magnetoelectric machine | |
| CN106374707B (en) | Motor | |
| CN103633806A (en) | Single-phase transverse flux full-control switched reluctance motor | |
| CN106921228A (en) | A kind of stator, the manufacture method of stator and permanent magnetic brushless | |
| CN206602414U (en) | A kind of stator and permanent magnetic brushless | |
| CN104167844A (en) | Mixed asymmetric permanent magnet rotor | |
| CN103222156B (en) | A kind of ferrite three-phase permanent magnet motor | |
| CN202068244U (en) | Ferrite three-segment three-phase permanent magnet motor | |
| JP2017195690A (en) | Rotor structure in outer rotor type multipole generator | |
| WO2018162073A1 (en) | Permanent magnet axial-flux electric machine stator and rotor assemblies | |
| CN107666194A (en) | Suitable for the rotor structure of composite stepper motor | |
| CN105305685A (en) | Permanent magnet synchronous direct-drive motor | |
| CN105048669A (en) | Novel embedded rotor of permanent magnet motor and processing method of novel embedded rotor | |
| CN107769501A (en) | A kind of disc type axial flux motor | |
| CN107809159A (en) | A kind of New single-phase cylinder-type transverse-flux switched relutance linear motor | |
| CN205123449U (en) | Can realize motor of high -efficient DC dynamo | |
| CN106160286A (en) | Magneto | |
| CN109818441A (en) | A kind of magnetic barrier formula permanent-magnet magnetic resistance synchronous motor rotor structure | |
| CN201975871U (en) | Ferrite three-section type three-phase permanent-magnet motor | |
| CN206077100U (en) | Magneto | |
| CN102347669A (en) | Limited angle torque motor and method for manufacturing same | |
| CN112087114B (en) | Hybrid excitation double-stator switched reluctance 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 |