CN108206595A - A kind of permanent magnet motor stator and magneto - Google Patents
A kind of permanent magnet motor stator and magneto Download PDFInfo
- Publication number
- CN108206595A CN108206595A CN201611184195.5A CN201611184195A CN108206595A CN 108206595 A CN108206595 A CN 108206595A CN 201611184195 A CN201611184195 A CN 201611184195A CN 108206595 A CN108206595 A CN 108206595A
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- Prior art keywords
- stator tooth
- stator
- winding
- thin
- tooth
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- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The present invention provides a kind of permanent magnet motor stator and magnetoes, the stator includes the stator tooth of axial spaced set, stator tooth includes wide stator tooth and thin stator tooth, and wide stator tooth width is more than thin stator tooth width, each wide stator tooth and thin stator tooth arranged adjacent；Magneto includes main winding and auxiliary winding, and the main winding is connected with the auxiliary winding, and main winding and auxiliary winding are adopted when being connected serially, and the number of turn of main winding and auxiliary winding is the half of umber of turn when not adding thin stator tooth；When main winding is connected with auxiliary winding using parallel way, umber of turn is identical when main winding is with the number of turn of auxiliary winding with not adding thin stator tooth, make the reduction of coil-winding complexity, using the magneto of this stator, the harmonic wave of fractional-slot concentratred winding magneto can be reduced or eliminated, reduces the electric and magnetic oscillation and rotor eddy current loss of magneto.
Description
Technical field
The invention belongs to electric motors, more particularly to a kind of permanent magnet motor stator and magneto.
Background technology
Application of the magneto in high performance control system is more and more extensive, compared to traditional fractional-slot Distributed Winding
Magneto, fractional-slot concentratred winding magneto are got in many industrial occasions, particularly electric drive system for electric vehicles
Carry out more applications, because compared to conventional permanent magnet motor, fractional-slot concentratred winding magneto can be substantially reduced End winding
Size saves copper, and copper loss is few, can reduce motor weight and volume, reduces winding resistance, improves electric efficiency and power density,
It is cost-effective；Be not in phase insulation failure without intersection between winding, improve motor reliability.
But contain a large amount of score time and higher hamonic wave, this meeting in fractional-slot concentratred winding magneto air-gap field
Increase the electric and magnetic oscillation of motor, larger vortex is induced in stator, very high Wen Shengcong can be caused when eddy-current loss is serious
And cause permanent magnet local demagnetization.
Invention content
The purpose of the present invention is to provide a kind of permanent magnet motor stator and magneto, for solving prior art mid-score
There is significantly harmonic wave in slot winding permanent magnet motor.
To achieve the above object, the technical scheme is that：
A kind of permanent magnet motor stator, includes the stator tooth of axial spaced set, the stator tooth include wide stator tooth and
Thin stator tooth, the width stator tooth width are more than the thin stator tooth width, and each wide stator tooth and thin stator tooth are adjacent
Arrangement.
Further, the height of the wide stator tooth is Hs, the width t of wide stator tooths, the height of the thin stator tooth is
Hs, the width value range of the thin stator tooth isWherein P be number of pole-pairs, z ' be number of stator slots, tsIt is fixed for width
The width of sub- tooth.
Further, the height of the thin stator tooth is identical with the height of the wide stator tooth.
The present invention also provides a kind of magnetoes, and including stator, the stator includes determining for several spaced sets
Sub- tooth, the stator tooth include wide stator tooth and thin stator tooth, the width stator tooth and thin stator tooth arranged adjacent.
Further, the height of the thin stator tooth is identical with the height of the wide stator tooth.
Further, the magneto includes main winding and auxiliary winding.
Further, the main winding and auxiliary winding all use three-phase windings.
Further, every phase winding of the three-phase windings is in the angle of m slots mutually, and wherein m=z ' -1, z ' are stator slot
Number, and z ' is even number.
Further, the main winding is connect with the auxiliary winding by the way of serial or parallel connection.
The beneficial effects of the invention are as follows：
The present invention provides a kind of permanent magnet motor stator and a kind of magneto, which includes thin stator tooth and wide stator
Tooth forms the unequal structure of the stator facewidth, using the magneto of the stator structure, can be formed main winding and auxiliary around
Group forms double-winding motor, can be greatly lowered or eliminate the harmonic wave of magneto, reduces electric and magnetic oscillation and rotor vortex damage
Consumption.
Double-winding permanent magnet motor provided by the invention, wherein, main winding and auxiliary winding connect in series or in parallel,
It adopts when being connected serially, main winding is identical with the number of turn of auxiliary winding, and umber of turn when being original only wide stator tooth
Half；When being connected using parallel way, main winding is identical with the number of turn of auxiliary winding, and with during original only wide stator tooth around
The group number of turn is identical, and coil-winding complexity reduces.
Description of the drawings
Fig. 1 is the stator structure figure of fractional-slot concentratred winding magneto；
Fig. 2 is the stator structure expanded view increased after thin stator tooth；
Fig. 3 is the distribution map of three-phase windings after the thin stator tooth of increase；
Fig. 4 is umber of turn schematic diagram after the thin stator tooth of increase.
Specific embodiment
The specific embodiment of the present invention is further described below in conjunction with the accompanying drawings：
A kind of embodiment of magneto of the present invention：
Use fractional-slot concentratred winding magneto mostly in the prior art, below by taking the magneto of 8 pole, 9 slot as an example,
Such as the magneto in Fig. 1,9 stator tooths, i.e. wide stator tooth described in the present invention are offered on stator：
Specifically as shown in Figure 1, number 1~9 represents the label of stator slot, i.e. 1~stator slot of stator slot 9, It represents
Sense of current,Current direction is to flow into paper,To flow out paper；A, B, C are three-phase windings, A+ for A phases positive direction (i.e.
Current direction is flows into paper), A- is A phases negative direction (i.e. current direction is outflow paper)；N, S represents the polarity of permanent magnet,
N, S is alternately arranged.
In order to reduce or eliminate the harmonic wave of double winding fractional-slot concentratred winding magneto, on the basis of Fig. 1, often adopt
With the method for increasing by one thin stator tooth in stator tooth, the present invention is thin stator tooth will to be had additional in each stator slot, will be former
Stator slot is divided into two, and is divided into two thin stator slots, forms wide stator tooth and thin stator tooth, will original son in order to distinguish
Tooth is defined as wide stator tooth.The height of thin stator tooth is identical with the height of wide stator tooth, and the width value range of thin stator tooth isWherein P is number of pole-pairs, and z ' be the number of stator slots increased after thin stator tooth, and is even number, tsFor the wide stator facewidth
Degree, the motor stator expanded view after increasing thin stator tooth in the stator slot of wide stator tooth formation, specifically as shown in Fig. 2, institute
Diagram includes former stator tooth and increases thin stator tooth newly.
The double winding of above-mentioned formation is represented respectively with main winding and auxiliary winding, after increasing thin stator tooth, main winding and
Auxiliary winding is in the angle of m slots mutually, and wherein m (m=3,5,7 ..., z ' -1), wherein z ' represents number of stator slots.Main winding and auxiliary
Help winding that the form of three-phase windings is respectively adopted, specific as shown in figure 3, wherein main winding serial number 1 represents, auxiliary winding is used
Serial number 2 represents that the m values differed in the m angle of the v-grooves are related to the pole slot cooperation of motor, and harmonic wave minimum can be chosen according to magnetic circuit simulation
M values, by taking A phase windings as an example, then A1+ and A2+ differs the angle of 5 slots, this time-harmonic wave is minimum.
Increase the Double-winding permanent magnet motor formed after thin stator tooth, this is different from the mode for increasing groove in stator rabbet.
Wherein main winding and auxiliary winding connects in series or in parallel, when adopt be connected serially when, main winding with auxiliary
The equal turn numbers of winding, and be the half of umber of turn when not adding thin stator tooth；When using parallel way connection, it is main around
The equal turn numbers of group and auxiliary winding, and umber of turn is identical during with not adding thin stator tooth；Conventional double-winding motor is
Reduction harmonic wave, single winding that covers is unequal into Sine distribution using the number of turn, and coil-winding is complicated.So such winding mode
The complexity of coiling is reduced, eliminates the harmonic wave of specific times.
As shown in figure 4, being main winding and the coil turn schematic diagram of auxiliary winding, N1 represents the number of turn of main winding,
N2 represents the coil turn of auxiliary winding, and N1 and N2 are equal.
In above-described embodiment, the coil turn of main winding and auxiliary winding is equal, as other embodiment, may be used
FInite Element is adjusted the coil turn of main winding and auxiliary winding.
The present invention also provides a kind of permanent magnet motor stator, axial spaced set has stator tooth, stator tooth on the stator
Including wide stator tooth and thin stator tooth, the structure of the stator has carried out more in detail in the embodiment of above-mentioned magneto
Description, therefore, repeat no more herein.
Specific embodiment of the present invention is presented above, but the present invention is not limited to described embodiment.
Under the thinking provided in the present invention, to the skill in above-described embodiment by the way of being readily apparent that those skilled in the art
Art means are converted, are replaced, are changed, and play the role of with the present invention in relevant art means it is essentially identical, realize
Purpose it is also essentially identical, the technical solution formed in this way is finely adjusted above-described embodiment to be formed, this technical solution
It still falls in protection scope of the present invention.
Claims (9)
1. a kind of permanent magnet motor stator includes the stator tooth of axial spaced set, which is characterized in that the stator tooth includes width
Stator tooth and thin stator tooth, the wide stator tooth width are more than the thin stator tooth width, and each wide stator tooth is determined with thin
Sub- tooth arranged adjacent.
2. permanent magnet motor stator according to claim 1, which is characterized in that the height of the width stator tooth is Hs, wide stator
The width t of tooths, the height of the thin stator tooth is Hs, the width value range of the thin stator tooth isWherein P
For number of pole-pairs, z ' is number of stator slots, tsWidth for wide stator tooth.
3. permanent magnet motor stator according to claim 2, which is characterized in that the height of the thin stator tooth and the width are fixed
The height of sub- tooth is identical.
4. a kind of magneto, including stator, the stator includes the stator tooth of several spaced sets, which is characterized in that
The stator tooth includes wide stator tooth and thin stator tooth, the width stator tooth and thin stator tooth arranged adjacent.
5. magneto according to claim 4, which is characterized in that the height of the thin stator tooth and the wide stator tooth
Height it is identical.
6. magneto according to claim 4, which is characterized in that including main winding and auxiliary winding.
7. magneto according to claim 6, which is characterized in that the main winding and auxiliary winding all using three-phase around
Group.
8. magneto according to claim 7, which is characterized in that every phase winding of the three-phase windings is in m slots mutually
Angle, wherein m=z ' -1, z ' are number of stator slots, and z ' is even number.
9. the magneto described according to claim 6 or 7, which is characterized in that the main winding is used with the auxiliary winding
The mode of serial or parallel connection connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184195.5A CN108206595B (en) | 2016-12-20 | 2016-12-20 | Permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184195.5A CN108206595B (en) | 2016-12-20 | 2016-12-20 | Permanent magnet motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108206595A true CN108206595A (en) | 2018-06-26 |
| CN108206595B CN108206595B (en) | 2023-08-11 |
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ID=62604067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611184195.5A Active CN108206595B (en) | 2016-12-20 | 2016-12-20 | Permanent magnet motor |
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| Country | Link |
|---|---|
| CN (1) | CN108206595B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149818A (en) * | 2018-10-25 | 2019-01-04 | 南京康尼电子科技有限公司 | A kind of low-cost and high-performance harmonic wave cuts the continuous pole permanent-magnet synchronous machine of polar form |
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| CN105099112A (en) * | 2015-08-24 | 2015-11-25 | 浙江亿利达风机股份有限公司 | Single-phase permanent magnet brushless direct-current motor with auxiliary teeth and auxiliary windings |
| CN105186733A (en) * | 2015-10-22 | 2015-12-23 | 山东大学 | Double-winding high-powder-density mixed excitation permanent-magnet linear generator |
| CN206402002U (en) * | 2016-12-20 | 2017-08-11 | 郑州宇通客车股份有限公司 | Permanent magnet motor stator and magneto |
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Patent Citations (13)
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| CN102124626A (en) * | 2009-09-11 | 2011-07-13 | 深圳航天科技创新研究院 | Square-wave three-phase permanent magnet direct current motor provided with large teeth and small teeth structure and the assembling method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109149818A (en) * | 2018-10-25 | 2019-01-04 | 南京康尼电子科技有限公司 | A kind of low-cost and high-performance harmonic wave cuts the continuous pole permanent-magnet synchronous machine of polar form |
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| Publication number | Publication date |
|---|---|
| CN108206595B (en) | 2023-08-11 |
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Address after: No. 6, Yutong Road, Guancheng Hui District, Zhengzhou, Henan 450061 Applicant after: Yutong Bus Co.,Ltd. Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou Applicant before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
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