CN102487236B - Rotor of permanent magnet synchronous motor - Google Patents
Rotor of permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN102487236B CN102487236B CN200910263669.9A CN200910263669A CN102487236B CN 102487236 B CN102487236 B CN 102487236B CN 200910263669 A CN200910263669 A CN 200910263669A CN 102487236 B CN102487236 B CN 102487236B
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- rotor
- utmost point
- permanent magnet
- pawl utmost
- synchronous motor
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a rotor of a permanent magnet synchronous motor, aiming to solve the technical problem of an inner rotor type permanent magnet synchronous motor. The rotor is composed of a permanent magnet main rotor (1), a squirrel-cage starting rotor (2) and a main shaft. The permanent magnet main rotor (1) and the squirrel-cage starting rotor (2) are sleeved on the main shaft (4) side by side, wherein the permanent magnet main rotor (1) is arranged as a hollow rotor claw pole type combination, and a permanent magnet material (5) is arranged in a gap reserved between a claw pole and an adjacent part of the claw pole or a magnetic circuit cylinder (9) and the permanent magnet material (5) are concentrically arranged at the inner side of the claw pole, so that the rotor of the permanent magnet synchronous motor is formed. According to the rotor provided by the invention, the existing industry using a common asynchronous motor can be replaced, such as the fields including oil fields, servo, injection molding machinery, numerical control machines, train traction motors and wind power; and the rotor of the permanent magnet synchronous motor has tremendous economic benefits and social benefits on the aspects of saving energy, improving efficiency and the like.
Description
(1) technical field under
The present invention relates to motor, particularly a kind of permanent magnet synchronous motor.
(2) technical background
It is high that existing threephase motor or three-phase permanent-magnetic synchronous motors exist power consumption, particularly normal asynchronous efficiency and power factor all relatively low zero load and underloading electric current large, exist idle excitation loss, a large amount of energy of waste China, and increase user cost.Existing permanent magnet synchronous motor especially, existing rotor structure immature, is that on normal asynchronous rotor basis and inside mouse cage, symmetrical grooving is inserted magnet steel, significantly lowers the mechanical strength of rotor, do not quite with power output, magnet steel from rotor surface away from, mouse cage stops magnetic flux, magnet steel exists the significantly defect such as leakage field of magnet steel in rotor core, also some rotor pastes magnet steel with face, use easily and fly off, and easily demagnetize etc., and cannot promote.Also the producer of some magneto fills stainless steel magnetic shield at magnetic shield circumference on motor shaft, with lead screw dress magnetic pole and magnet steel, have axial restraint, have radially fixing, on magnetic pole, also fluting dress copper bar is made the cost that damping cage has significantly increased motor, and useless work is when useless, production cycle is longer, in a word structure topsy-turvy none can reach the shortcomings such as practical value.
(3) summary of the invention
Object of the present invention is just to provide that a kind of cost is low, a kind of permanent-magnet synchronous motor rotor of technology maturation, simple in structure, lightweight, reliable operation, energy-conservation and long service life.Be moving to maturity of internal rotor permanent magnet synchronous machine industry, unitized, a standardized quantum leap, can replace the industry that all asynchronous machines use.For solid foundation has been established in the rare earth resources effective exploitation utilization of China's abundant.
The object of the invention is to realize by such technical scheme, a kind of rotor of permanent magnet synchronous motor, consists of permanent magnetism main rotor (1), mouse cage starting rotor (2) and main shaft.Permanent magnetism main rotor (1) is with mouse cage starting rotor (2) and by being set in main shaft (4), wherein permanent magnetism main rotor (1) is set to the combination of sleeve rotor Lundell, in the space of the pawl utmost point and pawl utmost point adjacent portions, there are permanent magnetic material (5) or pawl utmost point inner concentric to have magnetic circuit cylinder (9) and permanent magnetic material (5) to form a kind of permanent-magnet synchronous motor rotor, the sleeve rotor pawl utmost point is set to trapezoidal or tile shape, described trapezoidal gradient is 10 °, and consistency of thickness, the space that the adjacent trapezoidal pawl utmost point forms is magnet steel groove; The adjacent tile shape pawl utmost point forms the welding groove at 90 °, right angle; There is reinforcement cylinder rotor inner side; Pawl is integral body and rotating shaft interference fit extremely, and be provided with magnetic shield, and the magnet steel notch that the pawl utmost point and the pawl utmost point are combined into has stainless steel lath and uses non-magnet material welded closure, and reinforcement place is welded by non-magnet material, is stainless steel welding; Described sleeve rotor Lundell combination is set to sleeve rotor and reinforcement combination; The deep trouth at Zhao Ji center is kelvin effect groove, in groove, set up copper bar and form damping cage increase starting torque, the tile shape pawl utmost point or trapezoidal pawl utmost point two ends are provided with ventilation hole and screw hole, and screw hole for being fixed for exporting torque and keeping dynamic balancing together with the steel cylinder of pawl utmost point rotor and inner side; Sleeve rotor is set to HALBACH external magnetic field magnet structure, and described permanent magnetic material is neodymium iron boron, and described sleeve rotor is formed by magnetic property good soft magnetic material die sinking finish forge or essence casting.The present invention compares with existing permanent magnet synchronous motor, cost is extremely low, avoid traditional design stupid, large, heavy, thick, the permanent magnetic material of the ultralight more applicable smaller size smaller of air-core armature is equipped with, the advantages such as high dependable with function have replaced that prior art cost is high, technique is loaded down with trivial details, power consumption is large, efficiency is low, structure is immature, reliability is low effectively, fragile, the defect such as cannot promote, bring the unforeseeable technique effect of people, had huge economic benefit and social benefit.
(4) accompanying drawing explanation
Accompanying drawing of the present invention is described as follows:
Fig. 1 is the present invention's trapezoidal pawl utmost point rotor and cage rotor combining structure schematic diagram;
Fig. 2 is that the tile shape pawl utmost point of the present invention and steel cylinder are combined A-A cutaway view;
Fig. 3 is that the tile shape pawl utmost point of the present invention is combined welding schematic diagram;
Fig. 4 is the ends of the earth of the present invention claw-pole rotor Combination Welding schematic diagram;
Fig. 5 is that the ends of the earth of the present invention is with the pawl utmost point rotor combination welding schematic diagram of kelvin effect groove and reinforcement;
Fig. 6 is model machine of the present invention, through national authority department, detects, and has examining report.
In figure: 1, the trapezoidal pawl utmost point; 2, cage rotor; 3, fan; 4, main shaft; 5, magnet steel groove; 6, kelvin effect groove; 7, protective plate; 8, screw; 9, magnetic circuit cylinder; 10, ventilation hole; 11, screw hole; 12, welding slot part; 13, spindle hole.
Embodiment:
Below in conjunction with drawings and Examples, the invention will be further described.Fig. 1 is the present invention's trapezoidal pawl utmost point rotor and cage rotor combination signal, trapezoidal pawl utmost point consistency of thickness, trapezoidal gradient is that to combine adjacent space be magnet steel groove for 10 ° of trapezoidal pawl utmost points and the pawl utmost point, rotor circumference magnet steel groove is the impact that the skewed slot mutually replacing is effectively offset rotor field and stator teeth groove caulking groove torque (cogging torque), improves electric efficiency.The pawl utmost point is by magnetic property good soft magnetic material die sinking finish forge or essence casting.The pawl utmost point adopts interference fit hot jacket on main shaft, the adjacent tile shape pawl utmost point forms the welding groove at 90 °, right angle, magnet steel groove is welded in welding groove welding with stainless steel electrode after inserting false magnet steel, the magnet steel notch that the pawl utmost point and the pawl utmost point are combined into has stainless steel lath non-magnet material welded closure, reinforcement place is welded by non-magnet material, is stainless steel welding; Weld by placing bore template in two ends of rotor after rough turn, finish turning on drilling machine, take out the false magnet steel in magnet steel groove after having bored two ends of rotor ventilation hole and screw hole, with specific purpose tool, put into after magnet steel, two ends are fixing together with protective plate screw.Screw hole for being fixed for exporting torque and keeping dynamic balancing together with the steel cylinder of pawl utmost point rotor and inner side, cage rotor adopts deep trouth, multiple-grooved corresponding configuration starting torque, and leaving cast aluminium fan, fan inner circle leaves large ventilation hole, effectively alleviates rotor weight and ventilation and heat.
Adopt Fig. 2 or Fig. 3 embodiment to be suitable for manufacturing servomotor, frequency-conversion synchronous motor, mouse cage combination across-the-line starting synchronous machine process is identical with Fig. 1 with coordinating, sleeve rotor is set to HALBACH external magnetic field magnet structure, is applicable to servomotor or variable-frequency motor or non iron-core motor.Fig. 4, Fig. 5 are the tangential parallel circuits schematic diagram of the present invention, and process is basic identical with Fig. 1.
Claims (1)
1. a permanent-magnet synchronous motor rotor, by permanent magnetism main rotor, mouse cage starting rotor and main shaft, formed, it is characterized in that: described permanent magnetism main rotor and described mouse cage starting rotor are also by being set in described main shaft, described permanent magnetism main rotor is set to the combination of sleeve rotor Lundell, in the space of the pawl utmost point and the adjacent portions pawl utmost point, there are permanent magnetic material or pawl utmost point inner concentric to have magnetic circuit cylinder and permanent magnetic material, the sleeve rotor pawl utmost point is set to trapezoidal or tile shape, described trapezoidal gradient is 10 °, and consistency of thickness, the space that the adjacent trapezoidal pawl utmost point forms is magnet steel groove; The adjacent tile shape pawl utmost point forms the welding groove at 90 °, right angle; There is reinforcement cylinder rotor inner side; Pawl is integral body and rotating shaft interference fit extremely, and be provided with magnetic shield, and the magnet steel notch that the pawl utmost point and the pawl utmost point are combined into has stainless steel lath and uses non-magnet material welded closure, and reinforcement place is welded by non-magnet material, is stainless steel welding; Described sleeve rotor Lundell combination is set to sleeve rotor and reinforcement combination; The deep trouth at Zhao Ji center is kelvin effect groove, in groove, set up copper bar and form damping cage increase starting torque, the tile shape pawl utmost point or trapezoidal pawl utmost point two ends are provided with ventilation hole and screw hole, and screw hole for being fixed for exporting torque and keeping dynamic balancing together with the steel cylinder of pawl utmost point rotor and inner side; Sleeve rotor is set to HALBACH external magnetic field magnet structure, and described permanent magnetic material is neodymium iron boron, and described sleeve rotor is formed by magnetic property good soft magnetic material die sinking finish forge or essence casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910263669.9A CN102487236B (en) | 2009-12-17 | 2009-12-17 | Rotor of permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910263669.9A CN102487236B (en) | 2009-12-17 | 2009-12-17 | Rotor of permanent magnet synchronous motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102487236A CN102487236A (en) | 2012-06-06 |
| CN102487236B true CN102487236B (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910263669.9A Expired - Fee Related CN102487236B (en) | 2009-12-17 | 2009-12-17 | Rotor of permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102487236B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868275A (en) * | 2012-09-18 | 2013-01-09 | 无锡锡山特种风机有限公司 | Three-phase permanent magnet synchronous motor |
| CN108599414A (en) * | 2018-04-17 | 2018-09-28 | 宁波良泽机械科技有限公司 | Sleeve rotor annular permanent magnet servo motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268333Y (en) * | 1996-02-02 | 1997-11-19 | 包头市永磁电机研究所 | Low-speed permanent-magnet synchronous motor |
| JP3558308B2 (en) * | 1995-04-25 | 2004-08-25 | 富士電機システムズ株式会社 | Permanent magnet type synchronous motor with rotor pole polarity discrimination |
| CN101540529A (en) * | 2009-04-10 | 2009-09-23 | 长葛市新世纪机电有限公司 | Asynchronous starting permanent magnet synchronous motor with huge starting torque |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006025488A (en) * | 2004-07-06 | 2006-01-26 | Mitsubishi Electric Corp | Starting generator for vehicle |
| CN101572464B (en) * | 2009-06-02 | 2010-12-29 | 上海电机学院 | Halbach array parallel rotor composite excitation brushless synchronous motor |
-
2009
- 2009-12-17 CN CN200910263669.9A patent/CN102487236B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3558308B2 (en) * | 1995-04-25 | 2004-08-25 | 富士電機システムズ株式会社 | Permanent magnet type synchronous motor with rotor pole polarity discrimination |
| CN2268333Y (en) * | 1996-02-02 | 1997-11-19 | 包头市永磁电机研究所 | Low-speed permanent-magnet synchronous motor |
| CN101540529A (en) * | 2009-04-10 | 2009-09-23 | 长葛市新世纪机电有限公司 | Asynchronous starting permanent magnet synchronous motor with huge starting torque |
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| Publication number | Publication date |
|---|---|
| CN102487236A (en) | 2012-06-06 |
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| CI03 | Correction of invention patent |
Correction item: Claims Correct: Correct False: Error Number: 51 Page: Description Volume: 30 |
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| RECT | Rectification | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20191217 |