CN202940657U - Permanent magnet synchronous motor rotor with herringbone permanent magnet oblique pole - Google Patents
Permanent magnet synchronous motor rotor with herringbone permanent magnet oblique pole Download PDFInfo
- Publication number
- CN202940657U CN202940657U CN 201220601143 CN201220601143U CN202940657U CN 202940657 U CN202940657 U CN 202940657U CN 201220601143 CN201220601143 CN 201220601143 CN 201220601143 U CN201220601143 U CN 201220601143U CN 202940657 U CN202940657 U CN 202940657U
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- CN
- China
- Prior art keywords
- herringbone
- synchronous motor
- permanent magnet
- motor 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.)
- Expired - Fee Related
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- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a permanent magnet synchronous motor rotor with a herringbone permanent magnet oblique pole. The rotor is formed by sleeving a magnet yoke on a rotating shaft; the surface of the magnet yoke is provided with be provided with a plurality of herringbone magnetic steel, a fixed block is arranged between two adjacent herringbone magnetic steel, and the fixed block is in fixed connection with the magnetic yoke through a fixing screw. The permanent magnet synchronous motor rotor provided by the utility model has small noise and vibration, is convenient to manufacture and enables consumption of copper wires to be reduced.
Description
Technical field
The utility model relates to a kind of permanent magnet synchronous motor field, is specifically related to the permanent-magnetic synchronous motor rotor of the oblique utmost point of a kind of herringbone form permanent magnetism.
Background technology
Existing permanent-magnet synchronous motor rotor, generally all mainly be comprised of yoke, magnet steel and axle.For preventing that magnet steel is when the rotor, magnet steel is subject to an outside centrifugal action of direction and escapes, and the opsition dependent requirement, will scribble the magnet steel of adhesive, stick on evenly distributedly on the surface of cylindrical of yoke, yoke and axle are connect by Desing of Interference Joint or key.
Impact due to the permagnetic synchronous motor slot effect, permagnetic synchronous motor is in operation process, often with larger tooth-harmonic emf, cogging torque and torque pulsation, affected widely the control precision of motor, limited its range of application in AC servo, for this reason, generally adopt skewed slot stator or skewed-rotor effectively to weaken or eliminate above-mentioned impact.The skewed slot stator is due to the manufacture craft more complicated, increase the consumption of copper cash, more be not easy to carry out the mechanization rule, therefore adopt in a large number at present the methods of skewed-rotors, the oblique utmost point of permanent magnetism be shaped as the linear single bevel, but the oblique utmost point of linear can produce axial thrust load, the opposite direction of this axial thrust load when motor positive and inverse, make rotor that axial play back and forth, the vibration of increasing motor and noise occur.Adopt herringbone form permanent magnetism tiltedly extremely after, can effectively address this problem.
Summary of the invention
The purpose of this utility model is to overcome the above problem that prior art exists, and the permanent-magnetic synchronous motor rotor of the oblique utmost point of a kind of herringbone form permanent magnetism is provided, noise and vibration less of the present utility model, and easily manufactured, the consumption of having saved copper cash.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
The permanent-magnetic synchronous motor rotor of the oblique utmost point of a kind of herringbone form permanent magnetism, comprise by yoke and be placed in rotating shaft and connect to form, and described yoke surfaces is provided with several herringbone magnet steel.
Further, between two adjacent described herringbone magnet steel, be provided with fixed block, the material of described fixed block is non-magnet_conductible material.
Further, described fixed block is fixedly connected with yoke by hold-down screw.
Further, described herringbone magnet steel is the left-right symmetric structure, and cross section is any one in watt shape and rectangle.
The beneficial effects of the utility model are:
After the utility model is applied to interior (outward) rotor Surface Mount Alnico permanent magnet synchronous motor, with the oblique utmost point of existing linear, compare, its beneficial effect is, not only effectively weaken or eliminate the adverse effect of slot effect to permagnetic synchronous motor, and eliminated the axial thrust load because tiltedly the utmost point brings, vibration and the noise of permagnetic synchronous motor have been reduced, be applicable to require the permanent magnet synchronous motor (PMSM) AC servo system of the low vibration of low noise, especially require the permanent magnet synchronous motor (PMSM) AC servo system of frequent rotating.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and coordinate accompanying drawing to be described in detail as follows.Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
The accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model, for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is overall structure schematic diagram of the present utility model.
Number in the figure explanation: 1, rotating shaft, 2, yoke, 3, the herringbone magnet steel, 4, hold-down screw, 5, fixed block.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Shown in Fig. 1, the permanent-magnetic synchronous motor rotor of the oblique utmost point of a kind of herringbone form permanent magnetism, comprise by yoke 2 and be placed in rotating shaft 1 and connect to form, and described yoke 2 surfaces are provided with several herringbone magnet steel 3.
Further, between two adjacent described herringbone magnet steel 3, be provided with fixed block 5, the material of described fixed block 5 is non-magnet_conductible material.
Further, described fixed block 5 is fixedly connected with yoke 2 by hold-down screw 4.
Further, described herringbone magnet steel 3 is the left-right symmetric structure, and cross section is any one in watt shape and rectangle.
The operation principle of the present embodiment is as follows:
Use due to herringbone magnet steel 3, so two-part shape full symmetric in the left and right of the oblique utmost point of permanent magnetism, size and gradient all equate, therefore the axial thrust load equal and opposite in direction that two parts permanent magnetism oblique utmost point in left and right produces, but the opposite direction due to two axial thrust loads in left and right, so cancel each other, just can thoroughly eliminate the axial endplay that axial thrust load brings to motor, reduced vibration and the noise of motor.
The employing of herringbone magnet steel 3, just can make the flute profile of stator adopt straight trough, symmetrical two parts of herringbone magnet steel 3 can be processed respectively, being assembled into herringbone gets final product again, compare with the skewed slot stator, not only facilitated the manufacture of stator, saved the consumption of copper cash, also for the mechanization rule, enhance productivity and created advantage simultaneously.
The rotor of permagnetic synchronous motor described in the utility model, with general form of straight lines skewed pole rotor, compare, owing to there is no axial force, therefore the noise and vibration of motor is all relatively low, is highly suitable for the permanent magnet synchronous motor (PMSM) AC servo system of and frequent rotating higher to the noise and vibration requirement.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. the permanent-magnetic synchronous motor rotor of the oblique utmost point of herringbone form permanent magnetism, comprise by yoke (2) and be placed in rotating shaft (1) and connect to form, and it is characterized in that: described yoke (2) surface is provided with several herringbone magnet steel (3).
2. the permanent-magnetic synchronous motor rotor of the oblique utmost point of a kind of herringbone form permanent magnetism according to claim 1, it is characterized in that: be provided with fixed block (5) between adjacent two described herringbone magnet steel (3), the material of described fixed block (5) is non-magnet_conductible material.
3. the permanent-magnetic synchronous motor rotor of the oblique utmost point of a kind of herringbone form permanent magnetism according to claim 1 and 2, it is characterized in that: described fixed block (5) is fixedly connected with yoke (2) by hold-down screw (4).
4. the permanent-magnetic synchronous motor rotor of the oblique utmost point of a kind of herringbone form permanent magnetism according to claim 1 is characterized in that: described herringbone magnet steel (3) is the left-right symmetric structure, and cross section is any one in watt shape and rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601143 CN202940657U (en) | 2012-11-15 | 2012-11-15 | Permanent magnet synchronous motor rotor with herringbone permanent magnet oblique pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601143 CN202940657U (en) | 2012-11-15 | 2012-11-15 | Permanent magnet synchronous motor rotor with herringbone permanent magnet oblique pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940657U true CN202940657U (en) | 2013-05-15 |
Family
ID=48324879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220601143 Expired - Fee Related CN202940657U (en) | 2012-11-15 | 2012-11-15 | Permanent magnet synchronous motor rotor with herringbone permanent magnet oblique pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940657U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836353A (en) * | 2014-02-11 | 2015-08-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic tile, permanent magnet rotor, and permanent magnet motor |
| CN108747510A (en) * | 2018-09-11 | 2018-11-06 | 上海电气集团上海电机厂有限公司 | A kind of processing tool of large synchronous motor armature spindle herringbone magnet steel mounting groove |
| CN110535269A (en) * | 2019-10-10 | 2019-12-03 | 安徽安凯汽车股份有限公司 | A kind of permanent-magnetic synchronous motor rotor step skewed pole structure |
-
2012
- 2012-11-15 CN CN 201220601143 patent/CN202940657U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836353A (en) * | 2014-02-11 | 2015-08-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic tile, permanent magnet rotor, and permanent magnet motor |
| CN104836353B (en) * | 2014-02-11 | 2018-01-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic shoe, p-m rotor and magneto |
| CN108747510A (en) * | 2018-09-11 | 2018-11-06 | 上海电气集团上海电机厂有限公司 | A kind of processing tool of large synchronous motor armature spindle herringbone magnet steel mounting groove |
| CN108747510B (en) * | 2018-09-11 | 2024-03-12 | 上海电气集团上海电机厂有限公司 | Machining tool for herringbone magnetic steel mounting groove of rotor shaft of large synchronous motor |
| CN110535269A (en) * | 2019-10-10 | 2019-12-03 | 安徽安凯汽车股份有限公司 | A kind of permanent-magnetic synchronous motor rotor step skewed pole 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: 20130515 Termination date: 20141115 |
|
| EXPY | Termination of patent right or utility model |