CN202210714U - Single-layered fractional slot winding structure for permanent magnet synchronous motor - Google Patents
Single-layered fractional slot winding structure for permanent magnet synchronous motor Download PDFInfo
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- CN202210714U CN202210714U CN2011203252538U CN201120325253U CN202210714U CN 202210714 U CN202210714 U CN 202210714U CN 2011203252538 U CN2011203252538 U CN 2011203252538U CN 201120325253 U CN201120325253 U CN 201120325253U CN 202210714 U CN202210714 U CN 202210714U
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- 238000004804 winding Methods 0.000 title claims abstract description 90
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 14
- 239000002356 single layer Substances 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 5
- 239000010949 copper Substances 0.000 abstract description 5
- 238000010923 batch production Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 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
- 239000000463 material Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model provides a single-layered fractional slot winding structure for a permanent magnet synchronous motor. In the utility model, the winding has even pole pairs, and in amount, the elements of the winding are half of the armature slots; each two pole pairs form a branch circuit of each phase of the single-layered winding; each branch circuit at least comprises a first element, a second element and a third element which are arranged in sequence; the winding directions of the first element and the third element are the same, and the span of the first element, as well as the third element, is 4; and the winding direction of the second element is opposite to those of the first element and the third element, and the span of the third element is 3. Through the winding structure provided by the utility model, the automatic inserting winding of the fractional slot distributed winding can be realized, and the advantages of the fractional slot distributed winding can be kept. The single-layered fractional slot winding structure has the advantages of good back-EMF (Electromotive Force) waveform and low cogging torque compared with the automatic inserting winding scheme of the single-layered integer slot distributed winding in the prior art, as well as copper conservation and high armature inserting winding rate compared with a routine concentric winding scheme, Therefore, the single-layered fractional slot winding structure is particularly suitable for low-voltage high-performance permanent-magnet machine winding with superior manufacturability requirements in batch production.
Description
Technical field
The utility model relates to electricity field, relates in particular to three phase alternating current motor, particularly a kind of individual layer 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 single layer winding is that integer winding and every extremely every phase groove number are less, can't realize that fractional slot winding cooperates, and therefore exists harmonic content high; Shortcomings such as the electromagnetic coupled degree is low, running stability difference; Particularly, permagnetic synchronous motor exists teeth groove moment big when using, shortcomings such as counter potential waveform difference.Though the concentric type two layer winding possesses better inhibited harmonic wave ability and higher electromagnetic coupled degree, the automation of the motor efficient that rolls off the production line is merely 1/3 of single layer winding, and exists end size big, many with copper, and manufacturing cost and material cost are all high than single layer winding.Therefore winding of the prior art all can't satisfy market to the high performance-price ratio product requirement.
Summary of the invention
The purpose of the utility model is to provide a kind of individual layer fractional-slot permagnetic synchronous motor winding construction; It is high that described this individual layer fractional-slot permagnetic synchronous motor winding construction will solve in the prior art three phase alternating current motor winding harmonic content, and efficient that the electromagnetic coupled degree is low, running stability is poor or automation is rolled off the production line is low, manufacturing cost and material cost is high, cost and performance can't be taken into account technical problem.
This individual layer fractional-slot permagnetic synchronous motor winding construction of the utility model comprises stator core, is provided with winding in the described stator core; Wherein, The number of pole-pairs of described winding is an even number, and the parts number of winding is the half the of armature slot number, and per 2 pairs of utmost points form branch road of the every phase of single layer winding; Every branch road is made up of one first element, second element and an element at least; Described first element, second element and element sequence arrangement, first element is identical with three-element direction of winding and span is the direction of winding and first element of 4, the second elements and three-element direction of winding is opposite and span is 3.
The operation principle of the utility model is: all elements of homophase are identical in generation back-emf direction, and three phase windings are symmetrically distributed, and can satisfy electric machine rotor fully and carry out rational electromagnetic coupled; Can guarantee the coupling that every phase winding is excitatory to all magnetic poles, therefore conventional relatively fractional-slot concentric type winding has effectively improved the uniformity of electromagnetic coupled, has reduced electromagnetic noise.The short distance winding of different spans has produced the magnetic linkage effect of concentric type winding; But first element and three-element span are than short 1 slot pitch of the outer coil element of concentric type; Therefore not only having saved the end uses copper; And conventional relatively fractional-slot concentric type winding improved the ability that motor suppresses harmonic wave, and conventional relatively single layer winding has effectively improved the form factor of winding back emf, reduced the harmonic loss and the torque fluctuations of motor.Number of slots is not the integral multiple of number of pole-pairs, and its teeth groove moment is one of four parts of conventional single layer winding in magneto, moves more steady.In following line process; Elder generation is with all coils element of coil winding machine difference coiling three phase windings; The back is once drawn in three-phase all coils element in the armature slot on winding inserter; Because down line process need successively not drawn in armature respectively with each phase element, so the following linear velocity of motor is identical with conventional single layer winding motor, be 3 times of linear velocity under the conventional fractional-slot concentric type two layer winding.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model can be realized rolling off the production line automatically of fractional-slot distributed winding; And kept the advantage of fractional-slot distributed winding; The individual layer integer groove distributed winding of the prior art relatively winding scheme that rolls off the production line automatically; The high advantage of efficient that possesses that counter potential waveform is good, teeth groove moment is low, the end is few with copper, armature rolls off the production line is particularly suitable for the low pressure high-performance magneto winding that batch production. art property is had relatively high expectations.
Description of drawings
Fig. 1 is the expansion sketch map of a kind of individual layer fractional-slot permagnetic synchronous motor winding construction of the utility model.
Fig. 2 is the radially sketch map of a kind of individual layer fractional-slot permagnetic synchronous motor winding construction of the utility model.
Embodiment
Embodiment 1
As depicted in figs. 1 and 2, a kind of individual layer fractional-slot permagnetic synchronous motor winding construction of the utility model comprises stator core 100; Be provided with winding in the described stator core 100, wherein, the number of pole-pairs of described winding is 4; Phase place is A, B and C three-phase, and the parts number of winding is 36, and the sequence number of element is followed successively by 1 to 36; Per 2 pairs of utmost points form branch road of the every phase of single layer winding, and every branch road is made up of three elements at least, form a branch road like element 1, element 2 and element 3; Identical and the span of the direction of winding of element 1 and element 3 is 4, and the opposite and span of element 2 direction of windings and element 1, element 3 lacks 1 than the span of element 1, element 3.
The operation principle of present embodiment is, all elements of homophase are in that to produce the back-emf direction identical, and A, B and C three phase windings are symmetrically distributed, and can satisfy electric machine rotor fully and carry out rational electromagnetic coupled; Can guarantee every phase winding to all magnetic pole N and the excitatory coupling of S, therefore conventional relatively fractional-slot concentric type winding has effectively improved the uniformity of electromagnetic coupled, has reduced electromagnetic noise.The short distance winding of different spans has produced the magnetic linkage effect of concentric type winding; But first element and three-element span are than short 1 slot pitch of the outer coil element of concentric type; Therefore not only having saved the end uses copper; And conventional relatively fractional-slot concentric type winding improved the ability that motor suppresses harmonic wave, and conventional relatively single layer winding has effectively improved the form factor of winding back emf, 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 single layer winding, moves more steady.In following line process; Elder generation is with all coils element of coil winding machine difference coiling three phase windings; The back is once drawn in three-phase all coils element in the armature slot on winding inserter; Because down line process need successively not drawn in armature respectively with each phase element, so the following linear velocity of motor is identical with conventional single layer winding motor, be 3 times of linear velocity under the conventional fractional-slot concentric type two layer winding.
Claims (1)
1. individual layer fractional-slot permagnetic synchronous motor winding construction; Comprise stator core, be provided with winding in the described stator core, it is characterized in that: the number of pole-pairs of described winding is an even number; The parts number of winding is the half the of armature slot number; Per 2 pairs of utmost points form branch road of the every phase of single layer winding, and every branch road is formed described first element, second element and element sequence arrangement by one first element, second element and an element at least; First element is identical with three-element direction of winding and span is the direction of winding and first element of 4, the second elements and three-element direction of winding is opposite and span is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203252538U CN202210714U (en) | 2011-09-01 | 2011-09-01 | Single-layered fractional slot winding structure for permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203252538U CN202210714U (en) | 2011-09-01 | 2011-09-01 | Single-layered fractional slot winding structure for permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202210714U true CN202210714U (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203252538U Expired - Lifetime CN202210714U (en) | 2011-09-01 | 2011-09-01 | Single-layered fractional slot winding structure for permanent magnet synchronous motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969857A (en) * | 2011-09-01 | 2013-03-13 | 华域汽车电动系统有限公司 | Single-layer fractional slot permanent magnet synchronous motor winding structure |
| CN111030331A (en) * | 2018-10-09 | 2020-04-17 | 台达电子工业股份有限公司 | Motor stator and forming method thereof |
-
2011
- 2011-09-01 CN CN2011203252538U patent/CN202210714U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969857A (en) * | 2011-09-01 | 2013-03-13 | 华域汽车电动系统有限公司 | Single-layer fractional slot permanent magnet synchronous motor winding structure |
| CN111030331A (en) * | 2018-10-09 | 2020-04-17 | 台达电子工业股份有限公司 | Motor stator and forming method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120502 |