CN106357018A - Motor stator and motor - Google Patents
Motor stator and motor Download PDFInfo
- Publication number
- CN106357018A CN106357018A CN201610859112.1A CN201610859112A CN106357018A CN 106357018 A CN106357018 A CN 106357018A CN 201610859112 A CN201610859112 A CN 201610859112A CN 106357018 A CN106357018 A CN 106357018A
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- Prior art keywords
- winding
- grooves
- stator
- groove
- motor
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Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a motor stator and a motor. The motor stator provided by the invention comprises a stator iron core and a three-phase winding; the stator iron core is formed by overlying a plurality of stator punching pieces; each stator punching piece comprises an annular yoke part and a plurality of teeth which extend to the circumferential direction in the radial direction of the yoke part in the yoke part; a groove is formed between every two adjacent teeth; each phase of winding of the three-phase winding comprises two groups of windings; all phases of windings of the three-phase winding are arranged on a motor iron core at intervals of 120 degrees, wherein the motor stator comprises 48 grooves (z1 to z48); the two groups of windings in the same phase of winding are arranged at an interval of 180 degrees on the motor iron core, wherein one group of winding penetrate through 10 grooves in the sequence of z1 to z13 to z2 to z12 to z3 to z11 to z24 to z14 to z23 to z15 in sequence; one group of winding comprises a first wire winding part and a second wire winding part; the first wire winding part penetrates more grooves than the second wire winding part. The magnetic field density, the magnetic field uniformity, the power density, the output torque, the iron core utilization rate and the like of the motor stator can be improved in a special wire winding mode.
Description
Technical field
The present invention relates to machine field, more particularly, to a kind of rotor and the motor with this kind of rotor.
Background technology
Motor is widely used in commercial production and the various electric equipments of life, existing motor have housing with
And it is located at the end cap at housing two ends, housing and end cap surround a cavity, are provided with stator and rotor in cavity, and stator has
There is stator core and be embedded into the coil on stator core.Rotor is arranged in stator, and can rotate with respect to stator.Turn
Sub- axle is arranged in rotor, and with rotor interference fit, armature spindle rotates under the drive of rotor, thus outwards exporting power.
Existing motor stator winding adopts lap winding using between each winding, has a number of between three-phase windings
Common groove, makes there is lap between each phase winding, and existing lap winding formula motor stator there is problems that, existing
Motor stator slot number is less, but because the distribution of lap wound order is because causing magnetic field intensity deficiency, power density deficiency and electromagnetic wave
It is difficult to close to sine wave etc..
Content of the invention
First goal of the invention of the present invention is to provide a motor stator with new wound-rotor structure.
Second goal of the invention of the present invention is to provide a motor with high power density.
The motor stator that an object of the present disclosure provides includes stator core and three-phase windings；Stator core is by multiple fixed
Sub- punching is overrided to form, and stator punching includes circular yoke portion and extends to circumferencial direction along yoke portion radial direction in yoke portion
Multiple teeth, form groove between adjacent tooth；In three-phase windings, every phase winding includes two groups of windings；In three-phase windings every phase winding it
Between on electric machine iron core mutually 120 degree of difference arrange；Wherein, motor stator includes 48 grooves (z1-z48)；Same phase winding
In two groups of windings differ on electric machine iron core 180 degree arrangement；One of which winding is in order along groove z1-z13-z2-z12-z3-
Z11-z24-z14- z23-z15 sequentially passes through 10 grooves；One of which winding includes the first winding section and the second winding section, the
The quantity of the groove that the quantity of the groove that one winding section passes through passes through than the second winding section is many.
From such scheme, stator core is provided with 48 grooves, every phase winding crosses over the half of stator core, and often
Phase winding is wrapped on 10 grooves by identical rule, and the net sectional area of every phase winding increases and then so that magnetic field intensity is improved,
And residual magnetic field between winding can be avoided to influence each other interference around rule, the electromagnetic wave that every phase winding is formed, closer to sine wave, carries
Outside the power of high motor operation, power density, the stability of motor and heat dispersion are lifted.
Further scheme is that the first winding section passes through 6 grooves, and the second winding section passes through 4 grooves.
Further scheme is that each groove accommodates n circle coiling, and one of which winding is in z1, z2, z12, z13, z14 and z24
Pass through altogether n circle coiling in 6 grooves and pass through n/2 circle coiling in z3, z11, z15 and z23 altogether 4 grooves.
Therefore, common groove is set in position, makes the number of turns in each groove equal, and in common groove
Each phase number of turn halves, and reduces each interfering effect between winding.
Further scheme is that n is the positive even numbers more than or equal to 2.
Further scheme is to be provided with insulating barrier between the described winding of the different groups in same described groove.
Therefore, insulating barrier effectively prevents from leading between different windings by mistake and causes electrical fault.
Further scheme is, there is extension at the top of tooth along the circumferencial direction of motor stator, two neighboring extension it
Between formed notch.
Therefore, the notch narrower than groove internal diameter effectively prevents getting loose and the contact with winding and the external world of winding.
The motor that the present invention second goal of the invention provides includes motor stator and the rotor being located in motor stator, electricity
Machine stator includes stator core and three-phase windings；Stator core is overrided to form by multiple stator punchings, and stator punching includes justifying
The yoke portion of ring-type and the multiple teeth extending along yoke portion radial direction to circumferencial direction in yoke portion, form groove between adjacent tooth；Three
In phase winding, every phase winding includes two groups of windings；120 degree are differed on electric machine iron core mutually between every phase winding in three-phase windings
Arrangement；Wherein, motor stator includes 48 grooves (z1-z48)；Two groups of windings in same phase winding differ on electric machine iron core
180 degree is arranged；One of which winding sequentially passes through along groove z1-z13-z2-z12-z3-z11-z24-z14-z23-z15 in order
10 grooves；One of which winding includes the first winding section and the second winding section, and the quantity of the groove that the first winding section passes through compares second
The quantity of the groove that winding section passes through is many.
Therefore, more slot number can make the power density of motor improve, and the span raising of every phase winding can
Effectively improve magnetic induction and potential, Distribution of Magnetic Field makes field waveform closer to sine wave, make the running of motor efficiently and more
Plus it is stable.
Further scheme is that the first winding section passes through 6 grooves, and the second winding section passes through 4 grooves.
Further scheme is that each groove accommodates n circle coiling, and one of which winding is in z1, z2, z12, z13, z14 and z24
Pass through altogether n circle coiling in 6 grooves and pass through n/2 circle coiling in z3, z11, z15 and z23 altogether 4 grooves.
Therefore, common groove is set in position, makes the number of turns in each groove equal, and in common groove
Each phase number of turn halves, and reduces each interfering effect between winding.
Brief description
Fig. 1 is the structure chart of stator punching in motor stator embodiment of the present invention.
Fig. 2 is the enlarged drawing at a in Fig. 1.
Fig. 3 is the coiling schematic diagram of one group of winding in motor stator embodiment of the present invention.
Fig. 4 is the coiling schematic diagram of a phase winding in motor stator embodiment of the present invention.
Fig. 5 is the coiling schematic diagram of three groups of windings in motor stator embodiment of the present invention.
Fig. 6 is the coiling schematic diagram of motor stator of the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
Specific embodiment
The motor stator that the present invention provides includes stator core and is wrapped in the multigroup winding on stator core.Wherein fixed
Sub- iron core is overrided to form by multi-disc stator punching, is provided with the multiple grooves for laying winding in the ring of stator punching.
Referring to Fig. 1, Fig. 1 is the structure chart of stator punching.Stator punching 1 includes an annular yoke portion 11, the yoke of annular
There is the centre bore for installing rotor, 48 teeth extending to circumferencial direction inside yoke portion 11 along yoke portion 1 radial direction in the middle of portion 11
12, form groove 13 between two adjacent teeth 12, motor stator forms altogether 48 grooves 13.
Referring to Fig. 2, Fig. 2 is the enlarged drawing at a in Fig. 1, and the overall width of tooth 12 is consistent, and tooth 12 is circumferentially distributed, therefore
Groove 13 profile between two teeth 12 is trapezoidal；The top of tooth 12 is extended with extension 23, phase along the circumferencial direction of motor stator
The opening 14 of groove 13 is defined between two extensions 23 on adjacent two teeth 12 and extension 24, and the width ratio groove of opening 14
Width at 13 minimum widith is less, forms the groove 13 with anticreep effect it is ensured that the winding in groove 13 is in winding process
Do not get loose easily.
On motor stator, 48 grooves 13 is represented with z1 to z48 respectively.Three-phase windings are wound with motor stator 1, often altogether
Phase winding all has two groups of windings of doubling, and for example, u phase winding is made up of a1 winding and a2 winding, and v phase winding is by b1 winding and b2
Winding forms, and w phase winding is made up of c1 winding and c2 winding.
Referring to Fig. 3, Fig. 3 is the coiling schematic diagram of a1 winding, along motor stator circle distribution 48 grooves 13 be launched into flat
Face figure, a1 winding sequentially passes through z1-z13-z2-z12-z3-z11-z24-z14-z23-z15 and has ten grooves 13 altogether, and a1 winding
Two winding sections, a1 first winding section and a1 second winding section can be divided into, a1 first winding section includes sequentially passing through z1-z13-
Z2-z12-z3-z11 has the coiling of six grooves 13 altogether, and a1 second winding section includes sequentially passing through z24-z14-z23-z15 and has altogether
The coiling of four grooves 13.A1 winding spans the spacing distance of 24 grooves 13, and altogether through ten grooves 13, Distribution of Magnetic Field is equal
Even and strengthen magnetic field intensity.Knowable to foregoing description, the quantity of the groove 13 that a1 first winding section passes through is worn than a1 second winding section
The quantity of the groove 13 crossed is many, and after a1 first winding section drives rotor to rotate, a1 second winding section still can make rotor produce drive
Power, strengthens the driveability of motor stator.
Referring to Fig. 4, Fig. 4 is the coiling schematic diagram of a1 winding and a2 winding.A1 winding and a2 winding are u phase winding, with
180 degree, i.e. beginning winding slot serial number z25(1+48/(360/180 of a2 is differed between two windings of phase)=25), therefore a2
Winding sequentially passes through z25-z37-z26-z36-z27-z35-z48-z38-z47-z39 according to the coiling rule of a1 winding and has ten altogether
Individual groove 13, and the top of a1 winding and a2 winding is connected to u phase line end.
Referring to Fig. 5, Fig. 5 is the coiling schematic diagram of a1 winding, b1 winding and c1 winding.A1 winding, b1 winding and c1 around
Group is respectively first group of coiling group of u phase, v phase and w phase winding, differs 120 two-by-two between a1 winding, b1 winding and c1 winding
Degree, therefore the winding of b1 starts winding slot serial number z17(1+48/(360/120)=17), and the winding of c1 starts winding slot sequence
Number be z33(17+48/(360/120)=33), therefore b1 sequentially passes through z17-z29-z18-z28- according to the winding sequence of a1
Z19-z27-z40-z30-z39-z31 has ten grooves 13 altogether, and c1 sequentially passes through z33-z45-z34- according to the winding sequence of a1
Z44-z35-z43-z8-z46-z7-z47 has ten grooves 13 altogether；The end of a1 winding, b1 winding and three groups of windings of c1 winding
A1 ', b1 ' and c1 ' link together according to star connection.
Referring to Fig. 6, Fig. 6 is the coiling schematic diagram of motor stator.B2 winding is second group of winding of v phase winding, c2 winding
For second group of winding of w phase winding, between a2 winding, b2 winding and c2 winding, differ 120 degree of distributions two-by-two, coiling rule is equal
Consistent with a1 winding coiling rule, the coiling of b2 winding sequentially passes through z41-z5-z42-z4-z43-z3-z16-z6-z15-z7 mono-
Totally ten grooves 13, the coiling of c2 winding sequentially passes through z9-z21-z10-z20-z11-z19-z32-z22-z31-z23 and has ten altogether
Individual groove 13.
Both pass through ten grooves 13 because three-phase windings have six groups of windings altogether, and one have 48 grooves on motor stator, that is, 48
Have in individual groove part groove be the equal coiling of two groups of windings thereon.By each phase winding winding sequence described in the present embodiment, can obtain
Wherein have z3, z7, z11, z15, z19, z23, z27, z31, z35, z39, z43, z47 altogether 12 grooves 13 be two groups different
Winding is by coiling.
Equal for ensureing the number of turns in each groove 13, it is independent that winding passes through the number of turn of the groove 13 being used in conjunction with to should be it
Pass through the half of the number of turn of groove 13 using.For example: a1 winding passes through z1-z13-z2-z12-z3-z11-z24-z14- z23-
Z15, and wherein z3, z11, z15 and z23 be common groove 13, a1 winding in z1, z2, z12, z13, z14 and z24 pass through n circle around
Line, then a1 winding then pass through n/2 circle coiling in z3, z11, z15 and z23, then can achieve coiling on 48 grooves 13 on motor stator
The number of turn be n circle, the utilization rate of groove 13 improves and forms magnetic field evenly, and wherein n is the positive even numbers more than or equal to 2.
Further scheme is to arrange insulating barrier between the different winding of shared groove 13, and insulating barrier can be coatings or absolutely
Edge panel material etc..
In the present invention, the special winding mode of stacked winding can improve the magnetic density of motor stator, magnetic field homogeneity, work(
Rate density, output torque and iron core utilization etc..
Finally it is emphasized that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, right
For those skilled in the art, the present invention can have various change and a change, all within the spirit and principles in the present invention,
Any modification, equivalent substitution and improvement done etc., should be included within the scope of the present invention.
Claims (9)
1. motor stator, including stator core and three-phase windings；
Described stator core is overrided to form by multiple stator punchings, and described stator punching includes circular yoke portion and described
The multiple teeth extending along described yoke portion radial direction to circumferencial direction in yoke portion, form groove between adjacent described tooth；
Winding described in every phase includes winding described in two groups；
120 degree of arrangements are differed mutually between winding described in three-phase on described electric machine iron core；
It is characterized in that:
Described motor stator includes 48 described grooves；
Winding described in two groups in winding described in every phase differs 180 degree arrangement on described electric machine iron core；
Winding described in one of which is worn successively along described groove z1-z13-z2-z12-z3-z11-z24-z14- z23-z15 in order
Cross 10 described grooves；
Winding described in every group includes the first winding section and the second winding section, the quantity ratio of the described groove that described first winding section passes through
The quantity of the described groove that described second winding section passes through is many.
2. motor stator according to claim 1 it is characterised in that:
Described first winding section passes through 6 described grooves, and described second winding section passes through 4 described grooves.
3. motor stator according to claim 1 it is characterised in that:
Each described groove accommodates n circle coiling；
Winding described in one of which in z1, z2, z12, z13, z14 and z24 totally 6 described grooves pass through coiling described in n circle and
Z3, z11, z15 and z23 pass through n/2 circle coiling totally in 4 described grooves.
4. motor stator according to claim 3 it is characterised in that:
Described n is the positive even numbers more than or equal to 2.
5. the motor stator according to any one of Claims 1-4 it is characterised in that:
It is provided with insulating barrier between the described winding of the different groups in same described groove.
6. the motor stator according to any one of Claims 1-4 it is characterised in that:
There is extension at the top of described tooth along the circumferencial direction of described motor stator, forms groove between two neighboring described extension
Mouthful.
7. motor, comprising:
Motor stator and the rotor being located in described motor stator；
Described motor stator includes stator core and three-phase windings；
Described stator core is overrided to form by multiple stator punchings, and described stator punching includes circular yoke portion and described
The multiple teeth extending along described yoke portion radial direction to circumferencial direction in yoke portion, form groove between adjacent described tooth；
Winding described in every phase includes winding described in two groups；
120 degree of arrangements are differed mutually between winding described in three-phase on described electric machine iron core；
It is characterized in that:
Described motor stator includes 48 described grooves；
Winding described in two groups in winding described in every phase differs 180 degree arrangement on described electric machine iron core；
Winding described in one of which is worn successively along described groove z1-z13-z2-z12-z3-z11-z24-z14- z23-z15 in order
Cross 10 described grooves；
Winding described in every group includes the first winding section and the second winding section, the quantity ratio of the described groove that described first winding section passes through
The quantity of the described groove that described second winding section passes through is many.
8. motor according to claim 7 it is characterised in that:
Described first winding section passes through 6 described grooves, and described second winding section passes through 4 described grooves.
9. the motor according to claim 7 or 8 it is characterised in that:
Each described groove accommodates n circle coiling, and winding described in one of which is in z1, z2, z12, z13, z14 and z24 totally 6 described grooves
In pass through coiling described in n circle and in z3, z11, z15 and z23 totally 4 described grooves pass through n/2 circle coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610859112.1A CN106357018B (en) | 2016-09-27 | 2016-09-27 | Motor stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610859112.1A CN106357018B (en) | 2016-09-27 | 2016-09-27 | Motor stator and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106357018A true CN106357018A (en) | 2017-01-25 |
| CN106357018B CN106357018B (en) | 2017-09-05 |
Family
ID=57865479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610859112.1A Active CN106357018B (en) | 2016-09-27 | 2016-09-27 | Motor stator and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106357018B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576910A (en) * | 2017-09-29 | 2018-01-12 | 广东威灵电机制造有限公司 | For the detection device and detection method of the balance for detecting stator |
| WO2018209778A1 (en) * | 2017-05-17 | 2018-11-22 | 蔚来汽车有限公司 | Motor stator assembly, motor, and electric vehicle having motor |
| CN111641301A (en) * | 2020-05-19 | 2020-09-08 | 台州市金宇机电有限公司 | Winding method of motor stator for electric vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1141513A1 (en) * | 1983-11-09 | 1985-02-23 | Горьковский Ордена Трудового Красного Знамени Политехнический Институт Им.А.А.Жданова | Three-phase combined winding |
| CN102647033A (en) * | 2011-02-16 | 2012-08-22 | 苏州工业园区泰格电子科技有限公司 | Stator and brushless electric machine comprising same and winding method of stator |
| CN103715850A (en) * | 2013-11-23 | 2014-04-09 | 南昌康富电机技术有限公司 | Stator double-armature lap winding unit of three-phase brushless synchronous generator |
| CN105375667A (en) * | 2015-12-07 | 2016-03-02 | 泰豪科技股份有限公司 | Multi-voltage single-double-layer winding of dipolar single-three-phase permanent magnetic generator |
| CN205248940U (en) * | 2015-12-16 | 2016-05-18 | 卧龙电气集团股份有限公司 | 36 3 looks asynchronous motor individual layers in groove mix chain winding with one heart |
| CN206077093U (en) * | 2016-09-27 | 2017-04-05 | 珠海英搏尔电气股份有限公司 | Motor stator and motor |
-
2016
- 2016-09-27 CN CN201610859112.1A patent/CN106357018B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1141513A1 (en) * | 1983-11-09 | 1985-02-23 | Горьковский Ордена Трудового Красного Знамени Политехнический Институт Им.А.А.Жданова | Three-phase combined winding |
| CN102647033A (en) * | 2011-02-16 | 2012-08-22 | 苏州工业园区泰格电子科技有限公司 | Stator and brushless electric machine comprising same and winding method of stator |
| CN103715850A (en) * | 2013-11-23 | 2014-04-09 | 南昌康富电机技术有限公司 | Stator double-armature lap winding unit of three-phase brushless synchronous generator |
| CN105375667A (en) * | 2015-12-07 | 2016-03-02 | 泰豪科技股份有限公司 | Multi-voltage single-double-layer winding of dipolar single-three-phase permanent magnetic generator |
| CN205248940U (en) * | 2015-12-16 | 2016-05-18 | 卧龙电气集团股份有限公司 | 36 3 looks asynchronous motor individual layers in groove mix chain winding with one heart |
| CN206077093U (en) * | 2016-09-27 | 2017-04-05 | 珠海英搏尔电气股份有限公司 | Motor stator and motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018209778A1 (en) * | 2017-05-17 | 2018-11-22 | 蔚来汽车有限公司 | Motor stator assembly, motor, and electric vehicle having motor |
| US10848020B2 (en) | 2017-05-17 | 2020-11-24 | Nio Nextev Limited | Motor stator assembly, motor and electric vehicle having the same |
| CN107576910A (en) * | 2017-09-29 | 2018-01-12 | 广东威灵电机制造有限公司 | For the detection device and detection method of the balance for detecting stator |
| CN111641301A (en) * | 2020-05-19 | 2020-09-08 | 台州市金宇机电有限公司 | Winding method of motor stator for electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106357018B (en) | 2017-09-05 |
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