CN203589874U - 4/12-pole double-winding double-speed three-phase asynchronous motor - Google Patents
4/12-pole double-winding double-speed three-phase asynchronous motor Download PDFInfo
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- CN203589874U CN203589874U CN201320651581.6U CN201320651581U CN203589874U CN 203589874 U CN203589874 U CN 203589874U CN 201320651581 U CN201320651581 U CN 201320651581U CN 203589874 U CN203589874 U CN 203589874U
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Abstract
The utility model discloses a 4/12-pole double-winding double-speed three-phase asynchronous motor, which comprises two sets of stator windings wound in a stator groove. Each set of stator windings is in the form of a single layer or double layers. The number of the parallel connection branches of the 4-pole stator windings is 1, 2 or 4, and the wiring mode thereof is Y type. The number of the parallel connection branches of the 12-pole stator windings is 1, 2 or 4, and the wiring mode thereof is delta type or Y type. Due to the adoption of the above technical scheme of the utility model, the selective categories of design schemes are greatly enriched. Meanwhile, the ideal design requirements of the comprehensive performance indexes of a motor are satisfied.
Description
Technical field
The utility model belongs to motor technology field, relates to a kind of threephase asynchronous of 4/12 pole-changing duplex-winding double-speed.
Background technology
The connection (Δ or Y) of threephase asynchronous stator, way in parallel (1,2,3 ...) and every groove conductor number be very important parameter, it directly has influence on the property indices of motor, for example: efficiency, power factor, locked-rotor torque, locked rotor current, breakdown torque etc.Conventionally have this situation, by designing and calculating, find: the stator winding of electric machine combination property index preferably time is the best of breed of a certain connection, some ways in parallel, a certain coil turn.
The winding connection mode of 4/12 utmost point duplex-winding double-speed motor of prior art only has Y/Y, Y/ Δ.For example, if a certain utmost point (4 utmost points) adopts 2 roads or 4 tunnel parallel connection methods, for example, when another utmost point (12 utmost points) is switched on, due to the imbalance of the induced potential in the parallel branch coil of 4 utmost points (being now the inoperative utmost point), between parallel branch, just produce circulation, thereby cause the winding waveform turn-to-turn of 12 utmost points (the work utmost point) bad, motor cannot start or move, simultaneously with abnormal electromagnetic noise.
Summary of the invention
The utility model provides a kind of 4/12 utmost point duplex-winding double-speed threephase asynchronous, solves preferably the problem that winding connection mode is single, general motor performance index are not good.
4/12 utmost point duplex-winding double-speed threephase asynchronous that the utility model provides, comprise the stator winding in stator slot around the home, stator winding is double winding, every cover winding is individual layer or bilayer, wherein the way in parallel of stator winding 4 utmost points is 1,2 or 4, and the way in parallel of stator winding 12 utmost points is 1,2 or 4.
The mode of connection of described stator winding 4 utmost points adopts wye connection, and the mode of connection of stator winding 12 utmost points adopts Δ type or wye connection.
Therefore, winding is except being connected into Y/Y, Y/ Δ, by 4 utmost points and 12 utmost point winding utmost points being organized mutually to the exact connect ion of coil, the synthetic electromotive force that makes every parallel branch is 0, winding can also be connected into 16 kinds of Y/2Y, Y/2 Δ, Y/4Y, Y/4 Δ, 2Y/Y, 2Y/ Δ, 2Y/2Y, 2Y/2 Δ, 2Y/4Y, 2Y/4 Δ, 4Y/Y, 4Y/ Δ, 4Y/2Y, 4Y/2 Δ, 4Y/4Y, 4Y/4 Δs etc.
The beneficial effects of the utility model are:
1, greatly enrich the optional kind of design, reached the desirable designing requirement of general motor performance index.
2, the imbalance of induced potential in the stator winding parallel branch coil of the elimination inoperative utmost point, between parallel branch, just produce circulation, cause the winding waveform turn-to-turn of stator winding of the work utmost point bad, motor cannot start or move, with bad phenomenon such as abnormal electromagnetic noises.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
Fig. 1 is the wiring schematic diagram that 4/12 way extremely in parallel is 1/1;
Fig. 2 is the wiring schematic diagram that 4/12 way extremely in parallel is 1/2;
Fig. 3 is the wiring schematic diagram that 4/12 way extremely in parallel is 1/4;
Fig. 4 is the wiring schematic diagram that 4/12 way extremely in parallel is 2/1;
Fig. 5 is the wiring schematic diagram that 4/12 way extremely in parallel is 2/2;
Fig. 6 is the wiring schematic diagram that 4/12 way extremely in parallel is 2/4;
Fig. 7 is the wiring schematic diagram that 4/12 way extremely in parallel is 4/1;
Fig. 8 is the wiring schematic diagram that 4/12 way extremely in parallel is 4/2;
Fig. 9 is the wiring schematic diagram that 4/12 way extremely in parallel is 4/4.
Embodiment
A kind of 4/12 utmost point duplex-winding double-speed threephase asynchronous, comprise the stator winding in stator slot around the home, stator winding is double winding, and every cover winding is individual layer or bilayer, wherein the way in parallel of stator winding 4 utmost points is 1,2 or 4, and the way in parallel of stator winding 12 utmost points can be 1,2 or 4.
Winding type be double-layer overlapped around or individual layer (according to the difference of number of stator slots, number of poles, can be individual layer chain type, individual layer staggered form, individual layer concentric type).
The mode of connection of described stator winding 4 utmost points adopts wye connection, and the mode of connection of stator winding 12 utmost points adopts Δ type or wye connection.
As shown in Figure 1, the mode of connection of 4/12 utmost point duplex-winding double-speed motor of prior art, two kinds of total Y/Y, Y/ Δs.Shown in Fig. 2～Fig. 9 is to connect the mode of connection that can expand with combination by appropriate winding, is respectively Y/2Y, Y/2 Δ; Y/4Y, Y/4 Δ; 2Y/Y, 2Y/ Δ; 2Y/2Y, 2Y/2 Δ; 2Y/4Y, 2Y/4 Δ; 4Y/Y, 4Y/ Δ; 4Y/2Y, 4Y/2 Δ; 16 kinds of 4Y/4Y, 4Y/4 Δs etc.
The motor utmost point mutually group according to U ,-W, V ,-U, W ,-V ... order is arranged in order, and spends facies tract winding be followed successively by 0 °, 60 °, 120 °, 180 °, 240 °, 300 °, 360 °, 420 °, 480 °, 540 °, 600 °, 660 ° for 4 utmost points 60.When 12 utmost point energising operation, 4 utmost point windings are in non operating state, due to shared same stator core, so groove electric angle during 12 utmost point is 12/4=3 times of 4 utmost point groove electric angles, now the electromotive force of the U phase coil group of 4 utmost points become successively 0 °, 540 ° (180*3=540, lower with), 1080 °, 1620 °.Because of U(0 °) ,-U(540 °), U(1080 °) ,-U(1620 °) equal and opposite in direction direction is identical, can not synthesize 0 each other, but can be in parallel or be connected into 1 tunnel, 2 roads or 4 tunnels.
Similarly, now the electromotive force of the V phase coil group of 4 utmost points be followed successively by 360 ° (120*3=360, lower with), 900 °, 1440 °, 1980 °.Because of V(360 °) ,-V(900 °), V(1440 °) ,-V(1980 °) equal and opposite in direction direction identical (and identical with U phase equal and opposite in direction direction), can not synthesize 0 each other, but can be in parallel or be connected into 1 tunnel, 2 roads or 4 tunnels.
Similarly, now the electromotive force of the W phase coil group of 4 utmost points be followed successively by 180 ° (60*3=180, lower with), 720 °, 1260 °, 1800 °.Cause-W(180 °), W(720 °) ,-W(1260 °), W(1800 °) equal and opposite in direction direction identical (and identical with U, V phase equal and opposite in direction direction), can not synthesize 0 each other, but can be in parallel or be connected into 1 tunnel, 2 roads or 4 tunnels.
Due to the utmost point of U, V now, W, to organize mutually equal and opposite in direction direction identical, no matter be that composition way in parallel is 1 tunnel, 2 roads or 4 tunnels, all can not form U, V, W is mutually the symmetric winding structure of 120 °, if adopt Δ connection, between U, V, W three-phase, just form stable circulation, cause the turn-to-turn of 12 utmost point windings bad, 12 utmost points cannot be moved to normal reliable.If adopt Y connection, between U, V, W three-phase, be open-circuit condition, although synthetic electromotive force is not 0, do not form the path of circulation, therefore can not affect the turn-to-turn waveform of 12 utmost point windings, make 12 extremely can move to normal reliable.
The motor utmost point mutually group according to U ,-W, V ,-U, W ,-V ... order is arranged in order, and spends facies tract winding be followed successively by 0 °, 60 °, 120 °, 180 °, 240 °, 300 °, 360 °, 420 °, 480 °, 540 °, 600 °, 660 °, 720 °, 780 °, 840 °, 900 °, 960 °, 1020 °, 1080 °, 1140 °, 1200 °, 1260 °, 1320 °, 1380 °, 1440 °, 1500 °, 1560 °, 1620 °, 1680 °, 1740 °, 1800 °, 1860 °, 1920 °, 1980 °, 2040 °, 2100 ° for 12 utmost points 60.Problem for convenience of explanation, only choosing U phase winding analyzes, obviously, when 12 pole motors normally move, the 60 potential vector angles of spending facies tract winding U phase coil group are followed successively by 0 °, 180 °, 360 °, 540 °, 720 °, 900 °, 1080 °, 1260 °, 1440 °, 1620 °, 1800 °, 1980 °.When 4 utmost point energising operation, 12 utmost point windings are in non operating state, due to shared same stator core, so groove electric angle during 4 utmost point is 4/12=1/3 times of 12 utmost point groove electric angles, now the electromotive force of the U phase coil group of 12 utmost points become successively 0 °, 60 ° (180*1/3=120, lower with), 120 °, 180 °, 240 °, 300 °, 360 °, 420 °, 480 °, 540 °, 600 °, 660 °.Because of U(0 °), U(120 °), U(240 °) three is mutually 120 ° and can synthesizes 0; U(360 °), U(480 °), U(600 °) three is mutually 120 ° and can synthesizes 0;-U(60 °) ,-U(180 °) ,-U(300 °) three is mutually 120 ° and can synthesizes 0;-U(420 °) ,-U(540 °) ,-U(660 °) three is mutually 120 ° and can synthesizes 0; Like this, 12 utmost point windings can be by U(0 °), U(120 °), U(240 °) with U(360 °), U(480 °), U(600 °) with-U(60 °) ,-U(180 °) ,-U(300 °) with-U(420 °) ,-U(540 °) ,-U(660 °) be connected to become respectively a branch road, so 12 utmost point 4 tunnel connections of design because of the synthetic electromotive force of each branch road when 4 utmost point windings energising be 0, therefore can not produce circulation, thereby can not disturb the turn-to-turn waveform of 4 utmost point windings, 4 utmost points can be moved reliably.
Also can be by U(0 °), U(120 °), U(240 °) with U(360 °), U(480 °), U(600 °) with-U(60 °) ,-U(180 °) ,-U(300 °) with-U(420 °) ,-U(540 °) ,-U(660 °) by constituting 2 tunnel connections or 1 tunnel connection, the synthetic electromotive force of every branch road is 0.
To sum up, above-mentioned 4/12 utmost point duplex-winding double-speed threephase asynchronous, both can be designed to 1 tunnel for 4 utmost points, can be designed to again 2 roads or 4 tunnels, can be connected into Y; For 12 utmost points, both can be designed to 1 tunnel, can be designed to again 2 roads or 4 tunnels, can be connected into Δ, also can be connected into Y.Therefore, can there be the totally 18 kinds of design alternatives of Y/Y, Y/ Δ, Y/2Y, Y/2 Δ, Y/4Y, Y/4 Δ, 2Y/Y, 2Y/ Δ, 2Y/2Y, 2Y/2 Δ, 2Y/4Y, 2Y/4 Δ, 4Y/Y, 4Y/ Δ, 4Y/2Y, 4Y/2 Δ, 4Y/4Y, 4Y/4 Δ, greatly expanded design space, for 4/12 utmost point duplex-winding double-speed threephase asynchronous of design synthesis excellent performance has been created condition.
Above-mentioned explanation is exemplary and nonrestrictive.By above-mentioned explanation those skilled in the art, can recognize that many kinds of the present utility model change and distortion, within it also will drop on essence of the present utility model and scope.
Claims (2)
1. a utmost point duplex-winding double-speed threephase asynchronous, comprise the stator winding in stator slot around the home, it is characterized in that: stator winding is double winding, every cover winding is individual layer or bilayer, wherein the way in parallel of stator winding 4 utmost points is 1,2 or 4, and the way in parallel of stator winding 12 utmost points can be 1,2 or 4.
2. 4/12 utmost point duplex-winding double-speed threephase asynchronous according to claim 1, is characterized in that: the mode of connection of described stator winding 4 utmost points adopts wye connection, and the mode of connection of stator winding 12 utmost points adopts Δ type or wye connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320651581.6U CN203589874U (en) | 2013-10-21 | 2013-10-21 | 4/12-pole double-winding double-speed three-phase asynchronous motor |
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| CN201320651581.6U CN203589874U (en) | 2013-10-21 | 2013-10-21 | 4/12-pole double-winding double-speed three-phase asynchronous motor |
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| CN201320651581.6U Expired - Fee Related CN203589874U (en) | 2013-10-21 | 2013-10-21 | 4/12-pole double-winding double-speed three-phase asynchronous motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199043A (en) * | 2016-08-27 | 2016-12-07 | 绿创（苏州）电子有限公司 | A kind of method detecting three phase alternating current motor rotating speed |
| CN106641081A (en) * | 2016-12-29 | 2017-05-10 | 中国农业大学 | Magnetorheological damper with electromagnetic active sedimentation and aggregation eliminating function and sedimentation and aggregation eliminating method |
-
2013
- 2013-10-21 CN CN201320651581.6U patent/CN203589874U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199043A (en) * | 2016-08-27 | 2016-12-07 | 绿创（苏州）电子有限公司 | A kind of method detecting three phase alternating current motor rotating speed |
| CN106641081A (en) * | 2016-12-29 | 2017-05-10 | 中国农业大学 | Magnetorheological damper with electromagnetic active sedimentation and aggregation eliminating function and sedimentation and aggregation eliminating method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20181021 |
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| CF01 | Termination of patent right due to non-payment of annual fee |