CN205377616U - Novel permanent magnet motor rotor - Google Patents
Novel permanent magnet motor rotor Download PDFInfo
- Publication number
- CN205377616U CN205377616U CN201620033439.9U CN201620033439U CN205377616U CN 205377616 U CN205377616 U CN 205377616U CN 201620033439 U CN201620033439 U CN 201620033439U CN 205377616 U CN205377616 U CN 205377616U
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- CN
- China
- Prior art keywords
- permanent magnet
- rotor core
- rotor
- permanent
- magnetic
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of permanent -magnet machine, in particular to permanent -magnet machine rotor, this electric motor rotor be including not magnetic conduction T type boss pivot, surperficial formula permanent magnet, built -in tangential structure permanent magnet, rotor core, the rotor core surface arrange NULL's the surperficial formula permanent magnet extremely with the N utmost point and S, rotor core radial groove in install the permanent magnet of tangential formula structure, the parallelly connected surperficial formula permanent magnet with corresponding the position of permanent magnet that every magnetic flow under extremely has two adjacent tangential formula structures is established ties and is provided, not magnetic conduction to change epaxial T type boss fixed with rotor core. The utility model provides an unite two into one and then play the mechanical strength that imitate to improve the rotor, save at a distance from the magnetic bridge, reduce the magnetic leakage and increase the novel permanent magnet motor rotor of advantages such as air gap flux density through the advantage with surperficial formula permanent -magnet machine and built -in permanent -magnet machine.
Description
Technical field
This utility model belongs to magneto technical field, particularly to a kind of permanent magnet machine rotor.
Background technology
The intensity of rotor and stress analysis are the important steps designing high speed embedded formula magneto.In internal permanent magnet synchronous motor, cause that permanent magnet material utilization rate is too low for not making the magnetic leakage factor of permanent magnet in motor excessive, and use every magnetic bridge, make the effect by the restriction leakage field that reached capacity every magnetic bridge position magnetic flux, to improve motor electromagnetic performance.But every magnetic bridge thickness effect rotor mechanical strength, if too big every magnetic bridge thickness, namely its mechanical strength is big not, then the centrifugal force produced when high speed operation of motor can cause rotor deformation excessive, threatens motor normal safe to run.The plastic deformation that when making rotor high-speed cruising it is thus desirable to take measures, unlikely generation is serious.
Utility model content
The purpose of this utility model is in that to overcome above-mentioned not enough offer of the prior art a kind of by the advantage of surface permanent magnetic motor and interior permanent magnet machines being united two into one and then playing the mechanical strength of effect raising rotor, save every magnetic bridge, reduction leakage field and the novel permanent magnet motor rotor increasing the advantages such as air gap flux density.
The technical solution of the utility model is achieved in that a kind of novel permanent magnet motor rotor, it is characterized in that: the T-shaped boss of not magnetic conduction, surface permanent magnetic body, built-in cutting orientation structure permanent magnet, rotor core and the radial groove that this rotor includes rotating shaft, is arranged in rotating shaft, described rotor core outer surface is pasted with surface permanent magnetic body；Described radial groove along rotor core radial distribution, corresponding in described radial groove is provided with cutting orientation structure permanent magnet, and described rotor core is fixed by the T-shaped boss in rotating shaft.
Described rotor core outer surface cloth is equipped with the surface permanent magnetic body extremely alternately arranged with N pole and S.
Described rotor core is fixed by the T-shaped boss in rotating shaft, arranges a T-shaped boss in the one end of the radial groove installing cutting orientation structure permanent magnet, arranges the T-shaped boss that quantity does not wait between adjacent two radial grooves.
Magnetic flux and the magnetic flux rope connection of surface permanent magnetic body generation that adjacent described cutting orientation structure permanent magnet parallel connection produces are collectively forming a magnetic pole；The adjacent polarity of described cutting orientation structure permanent magnet each two surface permanent magnetic body polarity corresponding thereto is identical, when as described in surface permanent magnetic body be N pole time, adjacent cutting orientation structure permanent magnet corresponding thereto is all N pole.
Rotating shaft and T-shaped boss adopt overall structure, improve the mechanical strength of motor.
The good effect that the technical solution of the utility model produces is as follows: the built-in cutting orientation structure magneto of prior art needs to reduce leakage field every magnetic bridge, the mechanical strength that can make rotor structure for permanent magnet motor every magnetic bridge diminishes, rotor stress field does not reach requirement, when rotor speed is higher, excessive stress will cause that mechanical problem occurs in rotor.Adopting scheme provided by the utility model, magnetic flux and the magnetic flux rope connection of surface permanent magnetic body generation that the permanent magnet parallel connection of adjacent built-in cutting orientation structure produces are collectively forming a magnetic pole, permanent magnet leakage field will be obviously reduced, and then improve electric efficiency.And adopt scheme provided by the utility model, with the T-shaped boss on not magnetic rotating shaft, rotor core is fixed, effectively ensure that the stable operation of rotor core portion, improve electromechanics intensity, reduce leakage field, save every magnetic bridge, strengthen air gap flux density.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model p-m rotor rotating shaft.
Fig. 2 is the structural representation of this utility model surface-built-in cutting orientation structure p-m rotor.
Fig. 3 is the permanent magnet motor structure schematic diagram of the provided scheme of this utility model.
Figure is labeled as: 1. surface permanent magnetic body, 2. cutting orientation structure permanent magnet, 3. rotor core, 4.T type boss, 5. rotating shaft, 6. radial groove, 7. stator core, 8. stator winding.
Detailed description of the invention
A kind of novel permanent magnet motor rotor, as shown in Figure 1, 2, the T-shaped boss of not magnetic conduction 4, surface permanent magnetic body 1, built-in cutting orientation structure permanent magnet 2, rotor core 3 and the radial groove 6 that this rotor includes rotating shaft 5, is arranged in rotating shaft, described rotor core outer surface cloth is equipped with the surface permanent magnetic body extremely alternately arranged with N pole and S；Described radial groove is along rotor core radial distribution, in described radial groove, correspondence is provided with cutting orientation structure permanent magnet, described rotor core is fixed by the T-shaped boss in rotating shaft, one T-shaped boss is set in the one end of the radial groove installing cutting orientation structure permanent magnet, the T-shaped boss that quantity does not wait is set between adjacent two radial grooves.
The T-shaped boss of described rotor core and rotating shaft is entrenched togather closely, the stable stable operation securing rotor core, and being able to ensure that rotor core, improves the mechanical strength of motor, reduces leakage field, saves every magnetic bridge, strengthen air gap flux density.
Magnetic flux and the magnetic flux rope connection of surface permanent magnetic body generation that adjacent described cutting orientation structure permanent magnet parallel connection produces are collectively forming a magnetic pole；The adjacent polarity of described cutting orientation structure permanent magnet each two surface permanent magnetic body polarity corresponding thereto is identical, when as described in surface permanent magnetic body be N pole time, adjacent cutting orientation structure permanent magnet corresponding thereto is all N pole.
Rotating shaft and T-shaped boss adopt overall structure, improve the mechanical strength of motor.
As it is shown on figure 3, described novel permanent magnet motor rotor coordinates stator core 7 and stator winding 8 just can be combined into a novel surface-built-in type permanent-magnet rotor synchronous motor.
Claims (5)
1. a novel permanent magnet motor rotor, it is characterized in that: the T-shaped boss of not magnetic conduction, surface permanent magnetic body, built-in cutting orientation structure permanent magnet, rotor core and the radial groove that this rotor includes rotating shaft, is arranged in rotating shaft, described rotor core outer surface is pasted with surface permanent magnetic body；Described radial groove along rotor core radial distribution, corresponding in described radial groove is provided with cutting orientation structure permanent magnet, and described rotor core is fixed by the T-shaped boss in rotating shaft.
2. a kind of novel permanent magnet motor rotor according to claim 1, it is characterised in that: described rotor core outer surface cloth is equipped with the surface permanent magnetic body extremely alternately arranged with N pole and S.
3. a kind of novel permanent magnet motor rotor according to claim 1, it is characterized in that: described rotor core is fixed by the T-shaped boss in rotating shaft, one T-shaped boss is set in the one end of the radial groove installing cutting orientation structure permanent magnet, the T-shaped boss that quantity does not wait is set between adjacent two radial grooves.
4. a kind of novel permanent magnet motor rotor according to claim 1, it is characterised in that: magnetic flux and the magnetic flux rope connection of surface permanent magnetic body generation that adjacent described cutting orientation structure permanent magnet parallel connection produces are collectively forming a magnetic pole.
5. a kind of novel permanent magnet motor rotor according to claim 1, it is characterised in that: rotating shaft and T-shaped boss adopt overall structure, improve the mechanical strength of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620033439.9U CN205377616U (en) | 2016-01-14 | 2016-01-14 | Novel permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620033439.9U CN205377616U (en) | 2016-01-14 | 2016-01-14 | Novel permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205377616U true CN205377616U (en) | 2016-07-06 |
Family
ID=56278366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620033439.9U Expired - Fee Related CN205377616U (en) | 2016-01-14 | 2016-01-14 | Novel permanent magnet motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205377616U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471213A (en) * | 2018-04-04 | 2018-08-31 | 南京航空航天大学 | Composite excitation axial magnetic circuit both-end excitation electromotor |
| CN108599418A (en) * | 2018-05-16 | 2018-09-28 | 华中科技大学 | A kind of rotor core and motor of magnetic circuit tandem type hybrid permanent magnet controllable flux motor |
| CN110212665A (en) * | 2019-05-08 | 2019-09-06 | 江苏大学 | A kind of method mixed rotor continuous pole permanent-magnet synchronous machine and reduce its torque pulsation |
| CN111654132A (en) * | 2020-06-22 | 2020-09-11 | 北京航空航天大学 | Wet-type permanent magnet fault-tolerant motor for aviation electro-hydrostatic actuator |
| CN114301203A (en) * | 2021-12-29 | 2022-04-08 | 东南大学 | High torque density magnetic circuit series type rotor structure |
-
2016
- 2016-01-14 CN CN201620033439.9U patent/CN205377616U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471213A (en) * | 2018-04-04 | 2018-08-31 | 南京航空航天大学 | Composite excitation axial magnetic circuit both-end excitation electromotor |
| CN108599418A (en) * | 2018-05-16 | 2018-09-28 | 华中科技大学 | A kind of rotor core and motor of magnetic circuit tandem type hybrid permanent magnet controllable flux motor |
| CN110212665A (en) * | 2019-05-08 | 2019-09-06 | 江苏大学 | A kind of method mixed rotor continuous pole permanent-magnet synchronous machine and reduce its torque pulsation |
| CN110212665B (en) * | 2019-05-08 | 2021-10-12 | 江苏大学 | Hybrid rotor continuous pole permanent magnet synchronous motor and method for reducing torque ripple thereof |
| CN111654132A (en) * | 2020-06-22 | 2020-09-11 | 北京航空航天大学 | Wet-type permanent magnet fault-tolerant motor for aviation electro-hydrostatic actuator |
| CN111654132B (en) * | 2020-06-22 | 2021-04-06 | 北京航空航天大学 | Wet-type permanent magnet fault-tolerant motor for aviation electro-hydrostatic actuator |
| CN114301203A (en) * | 2021-12-29 | 2022-04-08 | 东南大学 | High torque density magnetic circuit series type rotor structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20190114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |