CN103633798A - Wire inserting process for odd-or-even concentric unequal-turn stator windings - Google Patents
Wire inserting process for odd-or-even concentric unequal-turn stator windings Download PDFInfo
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- CN103633798A CN103633798A CN201310686433.2A CN201310686433A CN103633798A CN 103633798 A CN103633798 A CN 103633798A CN 201310686433 A CN201310686433 A CN 201310686433A CN 103633798 A CN103633798 A CN 103633798A
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Abstract
The invention relates to a motor and particularly relates to a wire inserting process for odd-or-even concentric unequal-turn stator windings, and the average span is set as 9. The wire inserting process comprises the following steps: distributing 4-eletrode 48-trough windings according to an unequal turn ratio of 1:0.6:0.31, and distributing 36 circles of the windings in each trough so as to form the unequal-turn windings in an unequal turn ratio of 36:25:11; and arranging a concentric type array. Compared with a dual-stacking manner, the wire inserting process has the advantages that straight line portions, at an end part out of a stator core, of the odd-or-even concentric unequal-turn stator windings can be respectively shortened by 5-8mm, so as to form big, middle and small coils which are concentrically arrayed, and the windings are not overlapped; the lengths of the end parts of the stator windings are effectively reduced, so that the resistance of the stator windings is reduced, the efficiency of the motor is improved by 0.5%; the heat radiating areas of end windings are increased, so that the rising temperature of one end part of a stator of the motor is lowered by 4.5 DEG C than that of the windings in a conventional process, and the copper consumption of each motor is low to 1.7kg, and the wire inserting process can be widely applied to ultra-efficient motors.
Description
Technical field
The present invention relates to motor, particularly relate to single two circle stator winding wire insertion technology that do not wait with one heart.
Background technology
The efficiency of three-phase AC asynchronous motor is the ratio of power output and input power, and input power is less, and the efficiency of motor is just higher.The difference of input power and power output is the total losses of motor, minute: the iron loss of stator copper loss, rotor aluminium consumption, silicon steel sheet, mechanical friction and the wind abrasion of fan cooled combination, the supplementary load loss that cause because of many uncertain factors such as technological fluctuations are referred to as stray loss.Stator copper loss proportion in motor total losses belongs to the highest, reach 20-55%, especially the specification accounting of 0.55KW-30KW reaches 35-50%, adopt the Study of the Realization of novel rule technology and technological operation, the copper loss that operates simple and convenient and reduce stator winding than traditional wire insertion technology is to improve electric efficiency.Make motor become the energy-conserving product of environmental protection, safety.
The stator winding of three-phase cage induction motor, it is double-layer overlapped formula that conventional version routine is divided into 4 utmost point 48 grooves; 6 utmost point 72 grooves are double-layer overlapped formula, take YE3-180M-4-18.5KW as example, number of stator slots 48, every groove number of turn is 36 circles, and wire gauge is that 3-Φ 1.12,4 utmost point motors should be 2 N utmost points and 2 S utmost points, according to every extremely every phase groove number, be 4, be set as that 2 tunnels are in parallel carries out the arrangement of wire insertion technology for example.
Traditional operation technical process: see diagram 1, the U of take is example mutually, span 1-11=10, the span that is each coil is 10 grooves, is distributed as: the N utmost point of first group, set the electric current upstream end as U phase from No. 1 groove, label is U1 ＇, from No. 11 concentrated flows, go out, then enter No. 2 groove-No. 12 grooves and go out, enter again No. 3 groove-No. 13 grooves and go out, then enter No. 4 groove-No. 14 grooves and go out; Middle lengthening strides across the line of rabbet joint of crossing of the C phase S utmost point and the B phase N utmost point, and is inserted in insulating sleeve, enters the S utmost point of first group of U phase, from No. 26 grooves, entering-No. 16 grooves goes out, enter No. 25 groove-No. 15 grooves again and go out, then enter No. 24 groove-No. 14 grooves and go out, entering No. 23 groove-No. 13 grooves, to draw label be U2 ＇.Second N utmost point and the S utmost point are respectively at No. 25 groove mark U1 ＂ and No. 13 groove mark U2 ＂, by U1 ＇ and U1 ＂, carry out the U1 head that forms U phase in parallel, by U2 ＇ and U2 ＂, carry out the U2 tail that forms in parallel, one of whole like this three phase electric machine completes mutually, and all the other V phases and W are by the phase difference of arranging than U successively respectively 120 degree.Because double-layer overlapped formula, the number of turn of every coil embedding is all 18 circles, and embedding time-division the upper and lower is all impartial 18 circles.At overhang, occurred the overlapping combination of wire, the heat that after energising, wire sends is difficult to distribute, thereby easily makes the temperature rise of motor higher, ageing of insulation, and long-time running meeting burns out motor.
Summary of the invention: object of the present invention will provide a kind of list two circle stator winding wire insertion technologies that do not wait with one heart exactly, and it can overcome the above problem that prior art exists.The object of the present invention is achieved like this, single two circle stator winding wire insertion technology that do not wait with one heart, it is characterized in that: it is that double-deck small coil, 2-11 are that double-deck coil, 1-12 are that the large coil of individual layer, 13-24 are that the large coil of individual layer, 14-23 are the double-deck small coil of double-deck coil, 15-22 that span 3-10 is set, and average span is 9; By the turn ratio such as or not distribute 1:0.69:0.31, every groove 36 circles, 4 utmost point 48 groove windings, for 36:25:11 forms the winding that does not wait circle; Concentric type is set and arranges, the N cartridge U1 ＇ of U phase imbeds 11 circle wires from No. 3 grooves of small coil 3-10; From 10 stern notches, go out, 11 stern notches that enter coil 2-11 imbed 25 circles; From No. 2 grooves, go out, No. 1 groove that enters large coil 1-12 imbeds 36 circle wires; From 12 stern notches, go out, the middle N utmost point of crossing the groove W phase S utmost point and V phase, enters the S utmost point of first group, and No. 24 stern notches that enter large coil 13-24 imbed 36 circle wires; From No. 13 grooves, go out, No. 14 groove that enters coil 14-23 imbed 25 circle wires; From No. 23 stern notches, go out, No. 22 stern notches that enter small coil 15-22 imbed 11 circle wires; From No. 15 grooves, go out label U2 ＇; Second N utmost point of U phase, U1 ＂ imbeds 11 circle wires from No. 27 grooves of small coil 27-34; From 34 stern notches, go out, 35 stern notches that enter coil 26-35 imbed 25 circles; From No. 26 grooves, go out, No. 25 groove that enters large coil 25-36 imbed 36 circles; From 36 stern notches, go out, the middle N utmost point of crossing the groove W phase S utmost point and V phase, enters the S utmost point of second group, and No. 48 stern notches that enter large coil 37-48 imbed 36 circle wires; From No. 37 grooves, go out, No. 38 groove that enters coil 38-47 imbed 25 circle wires; From No. 47 stern notches, go out, No. 46 stern notches that enter small coil 39-46 imbed 11 circle wires; No. 39 groove goes out, label U2 ＂.
Label U1 ＇ and U1 ＂ are carried out to rear mark U1 in parallel, U2 ＇ and U2 ＂ are carried out to rear mark U2 in parallel, the coil of U phase has embedded like this.
The 1st groove of described V phase and W phase number forms 120 ° of phase differences, also forms the phase difference of 120 ° by that analogy between W phase and U phase; Form three-phase alternating current.
The present invention and the comparison of double-layer overlapped formula, singly the end of the Concentrical winding of double-deck circle such as grade outside stator core can form large, medium and small concentric rows alignment bag by each 5-8mm of straight line portion length, there is no overlapping winding.Effectively reduce stator winding end length, to reduce the resistance of stator winding, during 75 ℃ of temperature, by 0.5879 Ω, be reduced to 0.5163 Ω, make the copper loss of motor stator winding be reduced to 303W by original 420.5W, electric efficiency has improved 0.5%, and the area of dissipation of enlarged ends winding, make the temperature rise of end windings and parts of motor stator reduce by 4.5 ℃ than the winding of traditional handicraft, every motor copper consumption reduction reaches 1.7kg.It is applied in ultra-high efficient motor, by adopting new stator winding wire insertion technology, reduces stator copper loss and improves electric efficiency, makes motor in the situation of low material cost, be issued to the process innovation of ultra high efficiency standard-required.
Accompanying drawing explanation
Fig. 1 is traditional handicraft boarding line coil structures schematic diagram;
Fig. 2 is boarding line coil structures schematic diagram of the present invention;
1.1-48 represents that stator core has 48 grooves, 2.U1 be U phase head, 3.1-12 represents rule span, is 4. that the coil of 1-2 groove connects, and 5.V2 is V phase tail, 6. represent the head of a utmost point winding, 7. represent tail and the outlet of a utmost point winding, 8.W1 is W phase head, and 9.W2 is W phase tail, 10.V1 is V phase head, and 11.U2 is U phase tail.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described;
Single two circle stator winding wire insertion technology that do not wait with one heart, take YE3-180M-4-18.5KW as example, while adopting single pair not wait circle winding with one heart, it is that double-deck small coil, 2-11 are that double-deck coil, 1-12 are that the large coil of individual layer, 13-24 are that the large coil of individual layer, 14-23 are the double-deck small coil of double-deck coil, 15-22 that span 3-10 is set, and average span is 9; By the turn ratio such as or not distribute 1:0.69:0.31, every groove 36 circles, 4 utmost point 48 groove windings, for 36:25:11 forms the winding that does not wait circle; Be that large coil ratio be 1 is individual layer 36 circles, 0.69 and 0.31 proportional numbers groove be 25 circles and 11 circles for not waiting bilayer of circle, during the 25Wei lower floor of circle such as grade, the upper strata number of wire turns of arrangement is not exactly 11 circles, forms a number of wire turns in groove to reach 36 circles; Concentric type is set and arranges, the N cartridge U1 ＇ of U phase imbeds 11 circle wires from No. 3 grooves of small coil 3-10; From 10 stern notches, go out, 11 stern notches that enter coil 2-11 imbed 25 circles; From No. 2 grooves, go out, No. 1 groove that enters large coil 1-12 imbeds 36 circle wires; From 12 stern notches, go out, the middle N utmost point of crossing the groove W phase S utmost point and V phase, enters the S utmost point of first group, and No. 24 stern notches that enter large coil 13-24 imbed 36 circle wires; From No. 13 grooves, go out, No. 14 groove that enters coil 14-23 imbed 25 circle wires; From No. 23 stern notches, go out, No. 22 stern notches that enter small coil 15-22 imbed 11 circle wires; From No. 15 grooves, go out label U2 ＇; Second N utmost point of U phase, U1 ＂ imbeds 11 circle wires from No. 27 grooves of small coil 27-34; From 34 stern notches, go out, 35 stern notches that enter coil 26-35 imbed 25 circles; From No. 26 grooves, go out, No. 25 groove that enters large coil 25-36 imbed 36 circles; From 36 stern notches, go out, the middle N utmost point of crossing the groove W phase S utmost point and V phase, enters the S utmost point of second group, and No. 48 stern notches that enter large coil 37-48 imbed 36 circle wires; From No. 37 grooves, go out, No. 38 groove that enters coil 38-47 imbed 25 circle wires; From No. 47 stern notches, go out, No. 46 stern notches that enter small coil 39-46 imbed 11 circle wires; No. 39 groove goes out, label U2 ＂.
Described label U1 ＇ carries out rear mark U1 in parallel with U1 ＂, and U2 ＇ carries out rear mark U2 in parallel with U2 ＂, and the coil of U phase has embedded like this;
The 1st groove of described V phase and W phase number forms 120 ° of phase differences, also forms the phase difference of 120 ° by that analogy between W phase and U phase; Form three-phase alternating current.
Claims (3)
1. single pair is not waited circle stator winding wire insertion technology with one heart, it is characterized in that: it is that double-deck small coil, 2-11 are that double-deck coil, 1-12 are that the large coil of individual layer, 13-24 are that the large coil of individual layer, 14-23 are the double-deck small coil of double-deck coil, 15-22 that span 3-10 is set, and average span is 9; By the turn ratio such as or not distribute 1:0.69:0.31, every groove 36 circles, 4 utmost point 48 groove windings, for 36:25:11 forms the winding that does not wait circle; Concentric type is set and arranges, the N cartridge U1 ＇ of U phase imbeds 11 circle wires from No. 3 grooves of small coil 3-10; From 10 stern notches, go out, 11 stern notches that enter coil 2-11 imbed 25 circles; From No. 2 grooves, go out, No. 1 groove that enters large coil 1-12 imbeds 36 circle wires; From 12 stern notches, go out, the middle N utmost point of crossing the groove W phase S utmost point and V phase, enters the S utmost point of first group, and No. 24 stern notches that enter large coil 13-24 imbed 36 circle wires; From No. 13 grooves, go out, No. 14 groove that enters coil 14-23 imbed 25 circle wires; From No. 23 stern notches, go out, No. 22 stern notches that enter small coil 15-22 imbed 11 circle wires; From No. 15 grooves, go out label U2 ＇; Second N utmost point of U phase, U1 ＂ imbeds 11 circle wires from No. 27 grooves of small coil 27-34; From 34 stern notches, go out, 35 stern notches that enter coil 26-35 imbed 25 circles; From No. 26 grooves, go out, No. 25 groove that enters large coil 25-36 imbed 36 circles; From 36 stern notches, go out, the middle N utmost point of crossing the groove W phase S utmost point and V phase, enters the S utmost point of second group, and No. 48 stern notches that enter large coil 37-48 imbed 36 circle wires; From No. 37 grooves, go out, No. 38 groove that enters coil 38-47 imbed 25 circle wires; From No. 47 stern notches, go out, No. 46 stern notches that enter small coil 39-46 imbed 11 circle wires; No. 39 groove goes out, label U2 ＂.
2. the two circle stator winding wire insertion technologies that do not wait with one heart of list according to claim 1, is characterized in that: described label U1 ＇ carries out rear mark U1 in parallel with U1 ＂, and U2 ＇ carries out rear mark U2 in parallel with U2 ＂, and the coil of U phase has embedded like this.
3. according to the two circle stator winding wire insertion technologies such as not with one heart of the list described in claim 1,2, it is characterized in that: described V phase forms 120 ° of phase differences with the 1st groove number of W phase, between W phase and U phase, also form the phase difference of 120 ° by that analogy; Form three-phase alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310686433.2A CN103633798A (en) | 2013-12-17 | 2013-12-17 | Wire inserting process for odd-or-even concentric unequal-turn stator windings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310686433.2A CN103633798A (en) | 2013-12-17 | 2013-12-17 | Wire inserting process for odd-or-even concentric unequal-turn stator windings |
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| CN103633798A true CN103633798A (en) | 2014-03-12 |
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| CN201310686433.2A Pending CN103633798A (en) | 2013-12-17 | 2013-12-17 | Wire inserting process for odd-or-even concentric unequal-turn stator windings |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113728539A (en) * | 2019-04-16 | 2021-11-30 | 株式会社虹之机器 | Stator coil winding device |
| CN114421663A (en) * | 2021-11-16 | 2022-04-29 | 上海电机***节能工程技术研究中心有限公司 | Motor rotor, motor and equipment |
| CN117833575A (en) * | 2024-03-06 | 2024-04-05 | 山西电机制造有限公司 | Single-double layer winding automatic wire embedding method based on large and small slot punching sheets |
| CN117833575B (en) * | 2024-03-06 | 2024-06-07 | 山西电机制造有限公司 | Single-double layer winding automatic wire embedding method based on large and small slot punching sheets |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101409486A (en) * | 2008-11-20 | 2009-04-15 | 江苏大中电机股份有限公司 | Special-winding energy-saving three-phase asynchronous motor |
| JP2012029370A (en) * | 2010-07-20 | 2012-02-09 | Hitachi Automotive Systems Ltd | Rotary electric machine, and vehicle comprising the same |
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2013
- 2013-12-17 CN CN201310686433.2A patent/CN103633798A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101409486A (en) * | 2008-11-20 | 2009-04-15 | 江苏大中电机股份有限公司 | Special-winding energy-saving three-phase asynchronous motor |
| JP2012029370A (en) * | 2010-07-20 | 2012-02-09 | Hitachi Automotive Systems Ltd | Rotary electric machine, and vehicle comprising the same |
Non-Patent Citations (1)
| Title |
|---|
| 李春光: "单双层绕组的槽号相位图分析法", 《电机技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113728539A (en) * | 2019-04-16 | 2021-11-30 | 株式会社虹之机器 | Stator coil winding device |
| CN113728539B (en) * | 2019-04-16 | 2024-04-02 | 株式会社虹之机器 | Stator coil winding device |
| CN114421663A (en) * | 2021-11-16 | 2022-04-29 | 上海电机***节能工程技术研究中心有限公司 | Motor rotor, motor and equipment |
| CN114421663B (en) * | 2021-11-16 | 2024-01-09 | 上海电机***节能工程技术研究中心有限公司 | Motor rotor, motor and equipment |
| CN117833575A (en) * | 2024-03-06 | 2024-04-05 | 山西电机制造有限公司 | Single-double layer winding automatic wire embedding method based on large and small slot punching sheets |
| CN117833575B (en) * | 2024-03-06 | 2024-06-07 | 山西电机制造有限公司 | Single-double layer winding automatic wire embedding method based on large and small slot punching sheets |
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Application publication date: 20140312 |
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