CN103973063B - A kind of new type rotor structure improving magneto starting performance and steady-state behaviour - Google Patents
A kind of new type rotor structure improving magneto starting performance and steady-state behaviour Download PDFInfo
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- CN103973063B CN103973063B CN201410139036.8A CN201410139036A CN103973063B CN 103973063 B CN103973063 B CN 103973063B CN 201410139036 A CN201410139036 A CN 201410139036A CN 103973063 B CN103973063 B CN 103973063B
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Abstract
Present invention relates particularly to a kind of new type rotor structure improving magneto starting performance and steady-state behaviour, belong to electrical engineering technical field, including the rotor core being cased with in rotating shaft and rotating shaft, rotor core side is distributed some permanent magnets and forms octagonal, the rotor core of the nook formed between permanent magnet is provided with every magnetic bridge, rotor core circumference is provided with sheath groove, sheath groove is provided with circumferentially segmented formula solid rotor sheath, compared to the prior art the present invention is had the advantages that to utilize the eddy current produced on solid sheath in starting process can obtain the starting torque bigger than lamination rotor, the starting current less than solid construction magneto；Increase the convex grey subset of motor, to improve ability of pulling in, overload capacity and the torque density of motor, it is to avoid rotor jacket is overheated, effectively reduce the temperature rise of starting process rotor, be conducive to protecting permanent magnet.
Description
Technical field
Present invention relates particularly to a kind of improve the novel of magneto starting performance and steady-state behaviour
Rotor structure, belongs to electrical engineering technical field.
Background technology
Magneto uses permanent magnet excitation, eliminates Exciting Windings for Transverse Differential Protection and field power supply, structure letter
Single, reliable.Due to the loss without excitation system, it is thus achieved that higher efficiency.
And motor still can keep higher when being supported in 25%-120% rated load ranges change
Efficiency run.This makes magneto be widely used in: daily life, war industry,
The every field such as Aero-Space.But magneto also has the shortcoming that it is intrinsic, turn as started
Square compared with little, starting current is big.Therefore, in heavy-load start occasion frequently with solid rotor structure
To increase the starting torque of motor.Although solid-rotor permanent-magnet synchronous motor can export bigger
Starting torque, but corresponding starting current is the biggest, efficiency during motor steady-state operation
The Permanent Magnet and Electric comparing laminated rotor structure is confidential low, and temperature rise is higher, and this may cause
Permanent magnet partially or fully loss of excitation so that magneto cannot be properly functioning.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention proposes a kind of raising asynchronous starting forever
Magneto starting performance and the new type rotor structure of steady-state behaviour, overlap including in rotating shaft and rotating shaft
Some rotor cores, rotor core side is distributed some permanent magnets and forms octagonal, forever
The rotor core of the nook formed between magnet is provided with on magnetic bridge, rotor core circumference
Being provided with sheath groove, sheath groove is provided with circumferentially segmented formula solid rotor sheath.
The described solid sheath of circumferentially segmented formula is by conduction point lobe sheath and magnetic conduction conduction point lobe
Sheath is alternately distributed composition；Magnetic conduction conduction point lobe sheath is dove tail shape, magnetic conduction conduction point
It is 70% 80% that lobe sheath accounts for the area of every pole；The centrage of magnetic conduction conduction point lobe sheath and magnetic
Pole quadrature axis overlaps, and the centrage of conduction point lobe sheath overlaps with magnetic pole d-axis；Conduction point lobe protects
Set and magnetic conduction conduction point lobe sheath are connected by welding on rotor core, and conduction differentiates sheath
It is located in sheath groove.
Sheath groove includes the first sheath and the second sheath groove, on the first sheath groove equipped with
Conduction point lobe sheath, equipped with magnetic conduction conduction point lobe sheath on the second sheath groove.
Described conduction divides lobe sheath inner circle side to be provided with trapezoidal projection and in trapezoidal protruding both sides pair
Claim the upper half-round slot being provided with；First sheath groove and conduction point lobe sheath opposite position distribution
There are dovetail groove and lower half circular groove.
The described upper half-round slot on conduction point lobe sheath and the lower half circular groove group on rotor core
Become synthesis ventilating duct.
Sheath groove includes the first sheath groove and the 3rd sheath groove, the 3rd sheath groove
In？To being provided with three grooves, being provided with starting cage article in the 3rd sheath groove, the first sheath is recessed
The conduction being provided with in groove divides lobe sheath to be connected by end ring with starting cage bar.
Compared to the prior art the present invention is had the advantages that employing magnetic conduction conduction point lobe
Sheath and conduction point lobe sheath are alternately distributed composition rotor jacket, utilize in starting process real
The eddy current produced on heart sheath can obtain the starting torque bigger than lamination rotor, than reality
The starting current that core structure magneto is little.The centrage of magnetic conduction conduction point lobe sheath and motor
Quadrature axis is alignd, and the centrage of conduction point lobe sheath aligns with d-axis.Use this structure permissible
Increase the convex grey subset of motor, to improve ability of pulling in, overload capacity and the torque of motor
Density.Rotor core uses lamination.Divided the half slot of lobe sheath by conductive solid and turn
The synthesis air channel of the half slot composition on sub-iron core, can will overlap in motor starting process in time
The heat that cylinder produces sheds, and rotor jacket can be avoided overheated, effectively reduces in starting process
The temperature rise of rotor, is conducive to protecting permanent magnet.
Accompanying drawing explanation
Fig. 1 is rotor structure overall schematic of the present invention；
Fig. 2 is the embodiment of the present invention 1 structural representation；
Fig. 3 is that the present invention conducts electricity a point lobe sheath enlarged diagram；
Fig. 4 is the present invention one pole rotor core enlarged diagram.
Detailed description of the invention
When considered in conjunction with the accompanying drawings, by referring to detailed description below, it is possible to more completely more
Understand well the present invention and easily learn the advantage that many of which is adjoint, but described herein
Accompanying drawing be used for providing a further understanding of the present invention, constitute the part of the present invention.
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, in conjunction with
The present invention is further detailed explanation for the drawings and specific embodiments.
Embodiment 1: as it is shown in figure 1, include circumferentially segmented formula solid rotor sheath 1, rotor
Iron core 3, synthesis ventilating duct 6 and rotating shaft 4 form.Sheath is by magnetic conduction conduction point lobe sheath 1-2
It is arranged alternately composition with a conduction point lobe sheath 1-1 and is separately mounted to the first sheath groove and the
In two sheath grooves.Magnetic conduction conduction point lobe sheath 1-2 and conduction point lobe sheath 1-1 is by weldering
Connect in succession and smoothed grinding process.Magnetic conduction conduction point lobe sheath 1-2 is made dovetail groove
Shape.Having m(m=2n, n on every piece of conduction point lobe sheath 1-1 is positive integer) individual on
Half slot 6-1, and have trapezoidal protruding 8(Fig. 3 to show two half slot situations).?
Rotor core corresponding position has lower half circular groove 6-2 and dovetail groove 9(as shown in Figure 4).Will
The circumferentially segmented formula solid rotor sheath 1 welded, by the dovetail groove 9 on rotor core 3
Push rotor core 3, upper half-round slot 6-1 and lower half circular groove 6-2 vertically and form synthesis ventilation
Road 6.Constitute the magnetic pole of motor with two pieces of V-shaped permanent magnets 2, and make d-axis and conduction
The centrage dividing lobe sheath 1-1 overlaps, and quadrature axis divides the center of lobe sheath 1-2 with magnetic conduction conduction
Line overlaps.The centrage of two pieces of permanent magnets 2 is provided with triangle every magnetic bridge 5 carry out every
Magnetic.8 circles are the most uniformly offered on rotor core between permanent magnet 2 and axle 4
Air vent 7.
Embodiment 2: as in figure 2 it is shown, other schemes are same as in Example 1, wherein the 3rd
Being provided with starting cage bar 10 in three grooves of sheath groove, be provided with in the first sheath groove leads
Electricity point lobe sheath 1-1 is connected by end ring with starting cage bar 10.
Above to provided by the present invention a kind of improve asynchronous starting and permanent magnet motor starting performance and
The new type rotor structure of steady-state behaviour is described in detail, above by reference to accompanying drawing to the application
Exemplary embodiment be described.It should be appreciated by those skilled in the art that above-mentioned
Purpose that embodiment is merely to illustrate that and the example lifted rather than for limiting
System, all made under teachings of the present application and claims any amendment, etc.
With replacement etc., should be included in this application claims in the range of.
Claims (3)
1. improving a rotor structure for magneto starting performance and steady-state behaviour, its feature exists
In: including the rotor core being cased with in rotating shaft and rotating shaft, rotor core side is distributed some
Permanent magnet also forms octagonal, and the rotor core of the nook formed between permanent magnet is provided with
Every magnetic bridge, rotor core circumference is provided with sheath groove, and sheath groove is provided with circumferentially segmented
Formula solid rotor sheath；
The described solid sheath of circumferentially segmented formula is by conduction point lobe sheath and magnetic conduction conduction point lobe sheath
It is alternately distributed composition；Magnetic conduction conduction point lobe sheath is dove tail shape, and magnetic conduction conduction point lobe protects
It is 70% 80% that set accounts for the area of every pole；The centrage of magnetic conduction conduction point lobe sheath and magnetic pole
Quadrature axis overlaps, and the centrage of conduction point lobe sheath overlaps with magnetic pole d-axis；Conduction point lobe sheath
Being connected by welding on rotor core with magnetic conduction conduction point lobe sheath, conduction is differentiated sheath and is set
In sheath groove；
Sheath groove includes the first sheath and the second sheath groove, equipped with conduction on the first sheath groove
Divide lobe sheath, equipped with a magnetic conduction conduction point lobe sheath on the second sheath groove；
Described conduction divides lobe sheath inner circle side be provided with trapezoidal projection and set in trapezoidal protruding lateral symmetry
Some upper half-round slots；First sheath groove is distributed ladder with conduction point lobe sheath opposite position
Shape groove and lower half circular groove.
A kind of magneto starting performance and steady-state behaviour of improving the most according to claim 1
Rotor structure, it is characterised in that: the described upper half-round slot on conduction point lobe sheath and rotor
Lower half circular groove composition synthesis ventilating duct on iron core.
A kind of magneto starting performance and steady-state behaviour of improving the most according to claim 2
Rotor structure, it is characterised in that: sheath groove includes that the first sheath groove and the 3rd sheath are recessed
Groove, is provided with starting cage article in the 3rd sheath groove, the conduction being provided with in the first sheath groove is divided
Lobe sheath is connected by end ring with starting cage bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139036.8A CN103973063B (en) | 2014-04-08 | 2014-04-08 | A kind of new type rotor structure improving magneto starting performance and steady-state behaviour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139036.8A CN103973063B (en) | 2014-04-08 | 2014-04-08 | A kind of new type rotor structure improving magneto starting performance and steady-state behaviour |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103973063A CN103973063A (en) | 2014-08-06 |
| CN103973063B true CN103973063B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410139036.8A Active CN103973063B (en) | 2014-04-08 | 2014-04-08 | A kind of new type rotor structure improving magneto starting performance and steady-state behaviour |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749678B (en) * | 2017-11-27 | 2019-12-03 | 北京交通大学 | A kind of permanent magnet machine rotor sheath cooling structure device |
| CN112821619A (en) * | 2021-03-16 | 2021-05-18 | 山东理工大学 | Combined permanent magnet and brushless electromagnetic hybrid excitation generator for automobile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201298761Y (en) * | 2008-11-21 | 2009-08-26 | 湖南南车时代电动汽车股份有限公司 | Rotor for permanent-magnet motor |
| CN101616568A (en) * | 2008-06-25 | 2009-12-30 | 富准精密工业(深圳)有限公司 | Heat abstractor |
| CN101710746A (en) * | 2009-12-16 | 2010-05-19 | 三一电气有限责任公司 | Rotor and self-starting three-phase permanent magnet motor |
| CN102723827A (en) * | 2012-07-09 | 2012-10-10 | 罗寿元 | Special pure electric vehicle coaxial combination brushless DC motor with functions of power self-regulating and temperature control |
| CN103441634A (en) * | 2013-08-21 | 2013-12-11 | 北京交通大学 | Self-starting permanent magnet synchronous motor of magnetism and electricity conducting composite tooth structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030193258A1 (en) * | 2002-04-16 | 2003-10-16 | Reiter Frederick B. | Composite powder metal rotor sleeve |
| US20120126660A1 (en) * | 2010-11-23 | 2012-05-24 | Remy Technologies, L.L.C. | Rotor lamination compression sleeve for an electric machine |
-
2014
- 2014-04-08 CN CN201410139036.8A patent/CN103973063B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101616568A (en) * | 2008-06-25 | 2009-12-30 | 富准精密工业(深圳)有限公司 | Heat abstractor |
| CN201298761Y (en) * | 2008-11-21 | 2009-08-26 | 湖南南车时代电动汽车股份有限公司 | Rotor for permanent-magnet motor |
| CN101710746A (en) * | 2009-12-16 | 2010-05-19 | 三一电气有限责任公司 | Rotor and self-starting three-phase permanent magnet motor |
| CN102723827A (en) * | 2012-07-09 | 2012-10-10 | 罗寿元 | Special pure electric vehicle coaxial combination brushless DC motor with functions of power self-regulating and temperature control |
| CN103441634A (en) * | 2013-08-21 | 2013-12-11 | 北京交通大学 | Self-starting permanent magnet synchronous motor of magnetism and electricity conducting composite tooth structure |
Also Published As
| Publication number | Publication date |
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| CN103973063A (en) | 2014-08-06 |
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