Single-layer short isometric winding of 48-slot 4-pole three-phase asynchronous motor
- A 72-slot stator has a 4-pole, three-phase winding. Determine its coil pitch and the pitch factor. How many coils are in each phase group? Calculate the pitch factors for the following three-phase windings: (a) 36- slot, 4-pole, (b) 36-slot, 6-pole, and (c) 72-slot, 6-pole. Illustrate the place- ment of coils by sketches.
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The invention relates to a single-layer short isometric winding of a 48-slot 4-pole three-phase asynchronous motor, belongs to the field of the structural design of motors, and aims at providing the single-layer short isometric winding which is capable of improving motor efficiency and saving wires, and is convenient to wind and simple in embedding the wires.
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- CN102983653A CN102983653ACN201210439687XACN201210439687ACN102983653ACN 102983653 ACN102983653 ACN 102983653ACN 201210439687X ACN201210439687X ACN 201210439687XACN 201210439687 ACN201210439687 ACN 201210439687ACN 102983653 ACN102983653 ACN 102983653A
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- 朱运龙
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JP2003333811A (en) * 2002-05-12 2003-11-21 Yoshimitsu Okawa Induction motor having a plurality of axially divided stator windings
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Abstract
Description
Translated from Chinese48槽4极三相异步电动机单层短等距绕组 4-pole 48-slot three-phase asynchronous motor winding single short equidistantly
技术领域 FIELD
[0001] 本发明属于电动机结构设计领域，主要涉及三相异步电动机，尤其是48槽4极三相异步电动机的绕组。 [0001] The present invention belongs to the field of motor design, mainly related to phase asynchronous motor, in particular a 4-pole 48-slot winding phase asynchronous motor.
背景技术 Background technique
[0002] 据介绍，电动机作为一种通用工业设备，每年消耗了我国近60%的电力资源。 [0002] According to reports, the electric motor as a common industrial equipment, annual consumption of nearly 60% of the electricity resources in China.随着人们节能和环保意识的增强，世界各国相继出台了能效标准，我国也于2012年9月I日强制实施了GB18613— 2012《中小型三相异步电动机能效限定值及能效等级》标准，所以开发研制高效电动机是社会发展的必然趋势，也是企业参与市场竞争的需要。 As people's awareness of energy conservation and environmental protection, all over the world have introduced energy efficiency standards, China is also in September 2012, I date to enforce the GB18613- 2012 'for small and medium three-phase asynchronous motor energy efficiency limit value and energy efficiency rating' standard, develop efficient motor is the inevitable trend of social development, but also the need for enterprises to participate in market competition.三相异步电动机在各个领域均有广泛的应用，绕组则是电动机的心脏，直接关系到电动机的效率。 Phase asynchronous motor in various fields are widely used, it is the heart of the motor winding is directly related to the efficiency of the motor.电动机在运行过程中，定子铜耗约占总损耗的40 %，主要为满载时定子绕组在运行温度下的电阻损耗；杂散损耗约占总损耗的10%，包括磁场中影响最严重的5、7次谐波，这些损耗与绕组形式、节距、绕组端部等因素有关。 During operation of the motor, the stator copper loss accounts for about 40% of the total loss, primarily when fully loaded at the stator winding resistance loss at operating temperature; stray loss of the total loss of 10%, including a magnetic field affecting the worst 5 factors seventh harmonic, which form the winding losses, pitch, and other relevant winding ends.要提高电动机的效率，就要降低各种损耗；而如何降低定子铜耗与杂散损耗，则对提高电动机的效率非常关键。 To improve the efficiency of the motor, it is necessary to reduce various losses; and how to reduce the stray loss and copper loss of the stator, the improvement of the motor efficiency is critical.降低定子铜耗就要降低定子绕组电阻；降低杂散损耗就要缩短绕组端部；故降低定子绕组电阻和缩短绕组端部必须采用短等距绕组来实现。 The stator copper losses will decrease to reduce the stator winding resistance; reduce stray losses will be shortened coil end; it is reduced to shorten the stator winding resistance and the winding ends must be achieved with short equidistant winding.现有48槽4极三相异步电动机的单层定子绕组型式中有单层叠式和单层同心式，而这两种绕组型式已很难降低定子铜耗与杂散损耗。 Single stator winding groove pattern 48 existing 4-pole three-phase asynchronous motors in a single monolayer stacked and concentric, both of the stator winding pattern has been difficult to reduce copper losses and stray losses.
发明内容 SUMMARY
[0003] 本发明的目的是要提供一种能够提高电动机效率、且节省线材、绕制方便、嵌线简单的单层段等距绕组。 [0003] The object of the present invention is to provide an electric motor capable of improving efficiency and saving wire, wound easy, simple single embedding equidistant winding segment.本发明适用于定子是48槽4极三相异步电动机的制造与维修。 The present invention is applicable to the stator slot 48 manufacturing and maintenance of the 4-pole three-phase asynchronous motor.
[0004] 本发明所述的电动机绕组是通过改变线圈节距来缩短绕组端部长度，使线圈总长度缩短，定子电阻减小，从而降低了定子铜耗；同时大幅削减了电动机磁场中影响最严重的 [0004] The windings of the motor of the present invention is to be shortened by changing the pitch of the coil winding end portion length, shortening the total length of the coil, the stator resistance is reduced, thereby reducing the copper loss of the stator; at the same time slashed motor magnetic field affecting the most serious
5、7次谐波，并减少了漏磁，从而降低杂散损耗；有效的提高了电动机的效率与性能。 5,7 harmonics, and reducing the magnetic flux leakage, thereby reducing stray loss; effectively improve the efficiency and performance of the motor.
[0005] 本发明所述的48槽4极三相异步电动机单层短等距绕组共12组线圈，每组线圈由两个线圈组成；所有线圈的节距、形状和尺寸均相同，线圈节距为9;并采用交叠法嵌线和显极接法联接，嵌线时吊4边；嵌线规律是：嵌入I槽，退空I槽；再嵌I槽，再退空I槽，如此类推；其交叠法嵌线顺序见下表： [0005] 4-pole 48-slot three-phase asynchronous motors equidistant single short winding 12 of the present invention were set of coils, each coil consists of two coils; pitch, shape and size of the coils are all the same, the coil section distance of 9; and embedding method using overlapping salient poles and coupled connection, when the four sides of the hanging molding; embedding rule is: I embedding groove, I withdraw the empty slots; then I insert groove, I then passed empty slots, and so on; embedding method which overlaps the sequence in the table below:
48 Slot 6 Pole Winding Diagram
[0006] [0006]
[0007] 本发明的有益效果是：当采用本发明电动机绕组时，降低了电动机的定子铜耗与杂散损耗，有效的提高了电动机的效率与性能；同时比现有的单层绕组型式节省线材约15%、提高生产效率约30%。 [0007] Advantageous effects of the present invention is that: when using the present invention, the motor windings, the motor stator to reduce the stray loss and copper loss, to effectively improve the efficiency and performance of the motor; while saving than the conventional single-layer winding pattern wire about 15%, about 30% increase productivity.
附图说明 BRIEF DESCRIPTION
[0008] 图1为定子是48槽的4极三相异步电动机单层短等距绕组的布线展开图，图中的阿拉伯数字1-48为电动机的定子槽数，Al、A2、A3、A4、A5、A6、A7、A8为A相绕组的8个线圈;B1、B2、B3、B4、B5、B6、B7、B8 为B 相绕组的8 个线圈；C1、C2、C3、C4、C5、C6、C7、C8 为C相绕组的8个线圈。 [0008] FIG. 1 is a 4-pole motor the stator is a wiring short single-phase asynchronous equidistant winding groove 48 a developed view, FIG. 1-48 digit number of the motor stator slots, Al, A2, A3, A4 , A5, A6, A7, A8 of a-phase windings 8 of the coil; B1, B2, B3, B4, B5, B6, B7, B8 is a B-phase winding eight coils; C1, C2, C3, C4, C5 , C6, C7, C8 to eight C-phase winding coils.
具体实施方式 Detailed ways
[0009] 下面结合图1将本发明的实施细节说明如下： [0009] Embodiment 1 will be described in detail below in connection with the present invention is as follows:
[0010] 如图1所示48槽4极三相异步电动机单层短等距绕组共12组线圈，每组线圈由两个线圈组成，线圈节距为9，各相绕组线圈的嵌放结构为：A1嵌I、10槽，A2嵌3、12槽，A3嵌13,22 槽，A4 嵌15,24 槽，A5 嵌25,34 槽，A6 嵌27,36 槽，A7 嵌37,46 槽，A8 嵌39,48 槽；BI 嵌5、14 槽，B2 嵌7、16 槽，B3 嵌17、26 槽，B4 嵌19,28 槽，B5 嵌29、38 槽，B6 嵌31、40槽，B7 嵌41、2 槽，B8 嵌43、4 槽；C1 嵌9、18 槽，C2 嵌11、20 槽，C3 嵌21、30 槽，C4 嵌23、32 槽，C5 嵌33,42 槽，C6 嵌35,44 槽，Cl 嵌45、6 槽，C8 嵌47、8 槽。 [0010] FIG 4 single pole three-phase asynchronous motor winding short equidistant grooves 48 1 of 12 sets of coils, each coil consists of two coils, the coil pitch is 9, the structure of each phase winding Embedding coil is: A1 insert I, 10 grooves, A2 embedded grooves 3,12, A3 embedded grooves 13, 22, A4 embedded grooves 15, 24, A5 embedded grooves 25 and 34, A6 embedded grooves 27, 36, A7 embedded grooves 37,46 , A8 embedded grooves 39, 48; 5, 14 slot insert the BI, B2 embedded grooves 7,16, B3 embedded grooves 17, 26, B4 fitted grooves 19 and 28, B5 embedded grooves 29, 38, B6 embedded grooves 31, 40, 41,2 B7 embedded grooves, B8 43,4 insert groove; a C1 embedded grooves 9,18, C2 embedded grooves 11, 20, C3 21, 30 embedded in the groove, C4 embedded grooves 23, 32, C5 embedded grooves 33, 42, C6 35, 44 embedded in the groove, Cl 45,6 embedded grooves, C8 47,8 groove inlay.
Claims (2)
Translated from Chinese
Priority Applications (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515232A (en) * | 2016-01-19 | 2016-04-20 | 浙江金龙电机股份有限公司 | Motor stator |
| JP2003333811A (en) * | 2002-05-12 | 2003-11-21 | Yoshimitsu Okawa | Induction motor having a plurality of axially divided stator windings |
| CN104617699A (en) * | 2014-12-23 | 2015-05-13 | 南昌康富电机技术有限公司 | 200 kW lightweight generator |
| CN105515249A (en) * | 2016-01-19 | 2016-04-20 | 浙江金龙电机股份有限公司 | Pole-changing control three-phase asynchronous motor |
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