CN202260733U - Double-layer fractional slot permanent magnet synchronous motor winding structure - Google Patents
Double-layer fractional slot permanent magnet synchronous motor winding structure Download PDFInfo
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- CN202260733U CN202260733U CN2011203409568U CN201120340956U CN202260733U CN 202260733 U CN202260733 U CN 202260733U CN 2011203409568 U CN2011203409568 U CN 2011203409568U CN 201120340956 U CN201120340956 U CN 201120340956U CN 202260733 U CN202260733 U CN 202260733U
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- synchronous motor
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- 238000004804 winding Methods 0.000 title claims abstract description 80
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 13
- 239000011295 pitch Substances 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 11
- 238000004080 punching Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 239000010949 copper Substances 0.000 abstract description 6
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 230000016507 interphase Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002964 excitative effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
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Abstract
The utility model relates to a double-layer fractional slot permanent magnet synchronous motor winding structure. The structure is characterized in that a double-layer structured winding is arranged in a stator iron core and is a fractional slot distribution winding; each pair of poles form two branches for each phase; each branch at least consists of a first element and a second element; the winding directions of the first element and the second element are contrary; the span of the first element is three slot distances; the span of the second element is four slot distances; the turns of the first element are half of the turns of the second element; the first element and residual phases of windings are in the same slot; and the second element and the first element are spaced by one slot distance. By using the structure, the automatic wire insertion of the fractional slot distribution winding can be achieved, addition of interphase insulation is facilitated, and the structure has the advantages of good counter potential wave form, small tooth space, even end parts with less used copper amount and high power density; and relative to the concentric type fractional slot winding of the conventional fractional slot, the structure is small in end part size, less in copper amount, uniform in magnetic circuit and low in noise, thus the structure is especially suitable for a high-property high-voltage alternative-current motor winding with a high batch production technology requirement.
Description
Technical field
The utility model relates to electricity field, relates in particular to three phase alternating current motor, particularly a kind of double-deck fractional-slot permagnetic synchronous motor winding construction.
Background technology
In the prior art, the three phase alternating current motor of batch process generally adopts single layer winding or concentric type two layer winding.Wherein the concentric type two layer winding always exists length apart from winding, and every phase winding is less to the excitatory coupling ratio of all magnetic poles, and the end size of motor is big, many with copper, shortcomings such as manufacturing cost and material cost height; And the ability that the single layer winding motor suppresses harmonic wave a little less than, shortcoming such as the form factor of the back-emf of motor is little, and harmonic loss and torque fluctuations are big, and the motor number of teeth is many, and electromagnetic coupled is inhomogeneous, and electromagnetic noise is obvious.
Summary of the invention
The purpose of the utility model is to provide a kind of double-deck fractional-slot permagnetic synchronous motor winding construction, described this double-deck fractional-slot permagnetic synchronous motor winding construction will solve in the prior art that three phase alternating current motor winding electromagnetic coupled is inhomogeneous, electromagnetic noise obviously, the material cost is high, suppress that the harmonic wave ability is weak, the counter potential waveform coefficient is little, harmonic loss and torque fluctuations are big, move jiggly technical problem.
This double-deck fractional-slot permagnetic synchronous motor winding construction of the utility model comprises being provided with the double-decker winding in the stator core that described double-decker winding is the fractional-slot distributed winding; Wherein, every pair of utmost point forms two branch roads of every phase, and every branch road is made up of one first element and one second element at least; The direction of winding of described first element and described second element is opposite; The span of first element is 3 slot pitches, and the span of second element is 4 slot pitches, and the number of turn of first element is the number of turn half the of second element; First element and all the other phase windings be groove altogether, second element and first element 1 slot pitch of being separated by.
Further, described second element is arranged on separately in the radial core groove.
Further, said winding all coils parts number is 2/3 of a corresponding stator punching groove number.
The operation principle of the utility model is: in the two layer winding, the back-emf direction that all elements of homophase produce is identical, and three phase windings are symmetrically distributed, and realize the reasonable electromagnetic coupled of electric machine rotor; The short distance winding of different spans has produced the magnetic linkage effect of concentric type winding; The span of second element is than short 1 slot pitch of the outer coil element in the conventional fractional-slot concentric type winding; Not only saved the end and used copper, and conventional relatively fractional-slot concentric type winding has improved the ability of motor inhibition harmonic wave; Number of slots is not the integral multiple of number of pole-pairs, and the teeth groove of motor is one of four parts of conventional integer groove layer winding, moves more steady; In following line process, with all coils element of coil winding machine difference coiling three phase windings, the back is with draw in all coils element phase-splitting of three phase windings in the armature slot on the three-phase winding inserter successively earlier, and the efficient that rolls off the production line of the efficient that rolls off the production line and conventional one way winding electric machine is close.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model is symmetrically distributed double-deck three phase windings, can satisfy the reasonable electromagnetic coupled of electric machine rotor, guarantees the coupling that every phase winding is excitatory to all magnetic poles.The short distance winding of different spans has produced the magnetic linkage effect of concentric type winding; The span of second element is than short 1 slot pitch of the outer coil element in the conventional fractional-slot concentric type winding; Not only save the end and used copper; And conventional relatively fractional-slot concentric type winding has improved the ability of motor inhibition harmonic wave, and conventional relatively integer groove winding has effectively improved the form factor of winding back emf, has reduced the harmonic loss and the torque fluctuations of motor; Number of slots is not the integral multiple of number of pole-pairs, and the teeth groove of motor is one of four parts of conventional integer groove layer winding, moves more steady.The utility model has solved in the prior art that three phase alternating current motor winding electromagnetic coupled is inhomogeneous, electromagnetic noise obviously, the material cost is high, suppress that the harmonic wave ability is weak, the counter potential waveform coefficient is little, harmonic loss and torque fluctuations are big, move jiggly technical problem.
Description of drawings
Fig. 1 is the expansion sketch map of a kind of double-deck fractional-slot permagnetic synchronous motor winding construction of the utility model.
Fig. 2 is the radially sketch map of a kind of double-deck fractional-slot permagnetic synchronous motor winding construction of the utility model.
Embodiment
Embodiment 1
As depicted in figs. 1 and 2, a kind of double-deck fractional-slot permagnetic synchronous motor winding construction of the utility model comprises stator core 100, is provided with the double-decker winding in the described stator core 100; Described double-decker winding is the fractional-slot distributed winding, and in the present embodiment, the number of pole-pairs of winding is 4, and phase place is A, B and C three-phase; The parts number of winding is 36, and the sequence number of element is followed successively by 1 to 36, wherein; Every pair of utmost point forms two branch roads of every phase, and every branch road is made up of 2 elements at least, forms a branch road like element 1 and element 2; The direction of winding of element 1 and element 2 is opposite, and the span of element 1 is 3 slot pitches, and the span of element 2 is 4 slot pitches; The number of turn of element 1 is the number of turn half the of element 2, every element 1 in mutually all with all the other common grooves of winding in mutually, element 1 and element 21 slot pitch of being separated by.
Further, element 2 is arranged on separately in the radial core groove.
Further, be provided with two component outlines in any radial core groove.
Further, the number of teeth of stator punching is 36, and all windings have large and small 24 elements.Said winding all coils parts number is 2/3 of a corresponding stator punching groove number.
The operation principle of present embodiment is: in the two layer winding, the back-emf direction that all elements of homophase produce is identical, and three phase windings are symmetrically distributed, and realize the reasonable electromagnetic coupled of electric machine rotor; The short distance winding of different spans has produced the magnetic linkage effect of concentric type winding; The span of element 2 is than short 1 slot pitch of the outer coil element in the conventional fractional-slot concentric type winding; Not only saved the end and used copper, and conventional relatively fractional-slot concentric type winding has improved the ability of motor inhibition harmonic wave; Number of slots is not the integral multiple of number of pole-pairs, and the teeth groove of motor is one of four parts of conventional integer groove layer winding, moves more steady; In following line process, with all coils element of coil winding machine difference coiling three phase windings, the back is with draw in three-phase all coils element in the armature slot on the three-phase winding inserter successively earlier, and the efficient that rolls off the production line of the efficient that rolls off the production line and conventional one way winding electric machine is close.
Claims (3)
1. double-deck fractional-slot permagnetic synchronous motor winding construction; Described double-decker winding is the fractional-slot distributed winding, it is characterized in that: every pair of utmost point forms two branch roads of every phase, and every branch road is made up of one first element and one second element at least; The direction of winding of described first element and described second element is opposite; The span of first element is 3 slot pitches, and the span of second element is 4 slot pitches, and the number of turn of first element is the number of turn half the of second element; First element and all the other phase windings be groove altogether, second element and first element 1 slot pitch of being separated by.
2. double-deck fractional-slot permagnetic synchronous motor winding construction as claimed in claim 1, it is characterized in that: described second element is arranged on separately in the radial core groove.
3. double-deck fractional-slot permagnetic synchronous motor winding construction as claimed in claim 1 is characterized in that: winding all coils parts number is 2/3 of a corresponding stator punching groove number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203409568U CN202260733U (en) | 2011-09-13 | 2011-09-13 | Double-layer fractional slot permanent magnet synchronous motor winding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203409568U CN202260733U (en) | 2011-09-13 | 2011-09-13 | Double-layer fractional slot permanent magnet synchronous motor winding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260733U true CN202260733U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203409568U Expired - Lifetime CN202260733U (en) | 2011-09-13 | 2011-09-13 | Double-layer fractional slot permanent magnet synchronous motor winding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260733U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001365A (en) * | 2011-09-13 | 2013-03-27 | 华域汽车电动系统有限公司 | Double-layer fractional-slot winding structure of permanent-magnet synchronous motor |
| CN103762798A (en) * | 2014-02-18 | 2014-04-30 | 苏州爱知高斯电机有限公司 | Method for winding coil of three-phase motor |
| CN108959819A (en) * | 2018-07-27 | 2018-12-07 | 国家电网有限公司 | A kind of the unit motor choosing method and device of unconventional winding electric machine |
| CN111371223A (en) * | 2020-04-20 | 2020-07-03 | 株洲中车时代电气股份有限公司 | Stator winding, stator with same, motor and vehicle |
| CN111371222A (en) * | 2020-04-20 | 2020-07-03 | 株洲中车时代电气股份有限公司 | Stator winding, stator with same, motor and vehicle |
-
2011
- 2011-09-13 CN CN2011203409568U patent/CN202260733U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001365A (en) * | 2011-09-13 | 2013-03-27 | 华域汽车电动系统有限公司 | Double-layer fractional-slot winding structure of permanent-magnet synchronous motor |
| CN103762798A (en) * | 2014-02-18 | 2014-04-30 | 苏州爱知高斯电机有限公司 | Method for winding coil of three-phase motor |
| CN103762798B (en) * | 2014-02-18 | 2014-12-10 | 苏州爱知高斯电机有限公司 | Method for winding coil of three-phase motor |
| CN108959819A (en) * | 2018-07-27 | 2018-12-07 | 国家电网有限公司 | A kind of the unit motor choosing method and device of unconventional winding electric machine |
| CN111371223A (en) * | 2020-04-20 | 2020-07-03 | 株洲中车时代电气股份有限公司 | Stator winding, stator with same, motor and vehicle |
| CN111371222A (en) * | 2020-04-20 | 2020-07-03 | 株洲中车时代电气股份有限公司 | Stator winding, stator with same, motor and vehicle |
| CN111371223B (en) * | 2020-04-20 | 2021-01-29 | 株洲中车时代电气股份有限公司 | Stator winding, stator with same, motor and vehicle |
| CN111371222B (en) * | 2020-04-20 | 2021-06-18 | 株洲中车时代电气股份有限公司 | Stator winding, stator with same, motor and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cao Hongfei Inventor after: Zhang Kai Inventor after: Wang Wenjun Inventor after: Xu Feng Inventor before: Cao Hongfei Inventor before: Zhang Kai Inventor before: Wang Wenjun |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |