CN202549579U - End ring structure for double-layer spiral coil - Google Patents
End ring structure for double-layer spiral coil Download PDFInfo
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- CN202549579U CN202549579U CN2012201782657U CN201220178265U CN202549579U CN 202549579 U CN202549579 U CN 202549579U CN 2012201782657 U CN2012201782657 U CN 2012201782657U CN 201220178265 U CN201220178265 U CN 201220178265U CN 202549579 U CN202549579 U CN 202549579U
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Abstract
The utility model provides an end ring structure for a double-layer spiral coil. The end ring structure comprises an end ring for an inner-layer coil and an end ring for an outer-layer coil, wherein the end ring for the inner-layer coil is positioned on an inner ring, and a plurality of first stepped notches are uniformly formed along the circumferential direction of the end ring for the inner-layer coil; and the end ring for the outer-layer coil is positioned on an outer ring, and a plurality of second stepped notches are uniformly formed along the circumferential direction of the end ring for the outer-layer coil. The end ring structure has the advantages that displacement S-bend stepped notches are formed at a displacement position and are in a streamline shape along S bends, so convenience can be provided for manufacturing of rising S bends, and the safety and reliability of wire insulation can be ensured; and by uniformly forming the S bends on the circumference, the phenomenon of over-high local part of the end ring caused by over-concentrated distribution of the S bends can be avoided, the consistency of the insulating dimensions of an inner-layer coil end and an outer-layer coil end is effectively ensured, and the reactance height of the coil is controlled.
Description
Technical field
The utility model relates to the power transformer technical field, particularly a kind of end coil structures that is used for two-layer spiral coil.
Background technology
The two-layer spiral coil design feature is distinct, and head and the tail are lifted one's head at the same end of coil, is " ∪ " or " ∩ " type and arranges, and two-layer inside and outside being divided into, two interlayer leads connect no solder joint.For high-power transformer; Two-layer spiral coil can reduce leakage field density; Reduce stray loss, but owing to rise layer difficulty, particularly by the two-layer spiral coil of large-sized winding transposition wire; Cause the reactance of ectonexine coil highly inconsistent easily rising layer place transposition, the conductor turns insulation is damaged easily.Therefore, be necessary to provide a kind of end coil structures to improve the problems referred to above in fact.
The utility model content
The purpose of the utility model is to provide a kind of inside and outside layer place that rise of two-layer spiral coil that be used for to replace with the end coil structures, and the end circle of this structure can effectively improve the transposition situation that rises layer place.
To achieve these goals, the utility model adopts following technical scheme:
A kind of end coil structures that is used for two-layer spiral coil comprises that inner coil encloses with end and outer coil is used the end circle; Inner coil is positioned at inner ring with the end circle, along the circumferential direction is evenly distributed with some first step formula breach on it; Outer coil is positioned at the outer ring with the end circle, along the circumferential direction is evenly distributed with some second step formula breach on it.
Preferably, first step formula breach side is provided with the breach of placing fan-shaped cushion block.
Preferably, said inner coil is identical with the height of end circle with outer coil with the end circle.
Preferably, first step formula breach and second step formula breach all are skewed, and the incline direction of the incline direction of second step formula breach and first step formula breach is opposite.
Preferably, inner coil is identical with the quantity of the second step formula breach on the end circle with outer coil with the quantity of the first step formula breach on the end circle.
Preferably, inner coil is provided with 4 first step formula breach with the end circle, and outer coil is provided with 4 second step formula breach with the end circle.
Preferably, inner coil encloses all ringwise and concentric setting with end with end circle and outer coil.
The utility model has the following advantages at least: the utility model be applicable to by multiple conducting wires axially and around two-layer spiral coil; It need replace to reduce circulation loss rising layer place; The utility model promptly is to rise the specially designed a kind of end coil structures of layer place transposition for two-layer spiral coil; This kind end circle is replace " S " the curved stepwise breach of begining a theatrical performance in transposition; Breach is streamlined with " S " is curved, both can facilitate for rising the curved making of layer " S ", can guarantee the security reliability of wire insulation again; " S " bent evenly distribution on circumference, can avoid occurring too concentrating the too high phenomenon in end circle part that causes, effectively the consistency of two-layer coil-end insulation size, control coil reactance height inside and outside the assurance because of " S " bends to distribute.
Description of drawings
Fig. 1 is the sketch map of two-layer spiral coil structure;
Fig. 2 be inside and outside two-layer end circle location arrangements figure;
Fig. 3 is the expanded view of inner coil with the end circle;
Fig. 4 is the expanded view of outer coil with the end circle.
Embodiment
See also Fig. 1 to shown in Figure 4, present embodiment with by 4 traverse shafts to and around two-layer spiral coil be example; This coil is lifted one's head a by the low pressure head end and is begun coiling; Low pressure inner coil 1 number of turn around full back in the end 3 positions to outer transition; And transition position will be axially and around wire transposition (as shown in Figure 1 with traverse shaft to arrangement position be transformed to 4 '-3 '-2 '-1 ' by 1 '-2 '-3 '-4 '); Low pressure inner coil 1 afterbody lead transits to outside continued coiling low pressure outer coil 2; Lift one's head x around satisfactory circle to low pressure tail end and finish, low pressure inner coil 1 is in the opposite direction with 2 coilings of low pressure outer coil.
The end coil structures of the utility model two-layer spiral coil comprises that inner coil is with holding circle 5 and outer coil to enclose 6 with end; Inner coil is identical with the height H of end circle 6 with outer coil with end circle 5.Inner coil is positioned at inner ring with end circle 5, and inner coil is with along the circumferential direction being evenly distributed with 4 first step formula breach 50 on the end circle 5, and first step formula breach 50 sides are provided with the breach 51 of placing fan-shaped cushion block 7, and first step formula breach 50 is skewed.Outer coil is positioned at the outer ring with end circle 6, and outer coil is with along the circumferential direction being evenly distributed with 4 second step formula breach 60 on the end circle 6, and second step formula breach 60 is skewed; The incline direction of the incline direction of second step formula breach 60 and first step formula breach 50 is opposite.
Two-layer spiral coil carry out replacing shown in 3 among Fig. 1 (lead location that is axially-aligned is transformed to 4 '-3 '-2 '-1 ' by 1 '-2 '-3 '-4 '); This kind end coil structures will replace, and " S " is curved along the circumferential direction evenly to distribute by shown in Figure 2; Inner coil 1 by head end around to tail end by the curved outer coil 2 that transits to of warp shown in Figure 2 " S ", accomplish rising layer.The ectonexine coil is separated by insulation oil duct 4; Because of being provided with skeleton stay and insulating paper cylinder in the insulation oil duct 4; So place fan-shaped cushion block 7 in the curved top of winding wire " S ", be used for the stay and the paper web of supports insulative oil duct 4, avoid stay and paper web to damage the conductor turns insulation.
The meticulous cooperation of two-layer end circle can be found out through Fig. 2 to Fig. 4 inside and outside the process, and the inner coil lead can be bent smooth transition to outer coil through " S ", and has accomplished the axial transposition of requirement shown in Figure 1.Because " S " bends on circumference and evenly distributes, the height of end circle in each " S " crook is consistent, be convenient to the end insulation height of control coil.The appearance of this kind step end coil structures both rises layer to two-layer spiral coil and provides convenience, and has guaranteed the electric property of coil and the security reliability of insulation again.
The above is merely a kind of execution mode of the utility model; It or not whole or unique execution mode; The conversion of any equivalence that those of ordinary skills take the utility model technical scheme through reading the utility model specification, the claim that is the utility model contains.
Claims (7)
1. an end coil structures that is used for two-layer spiral coil is characterized in that, comprises that inner coil encloses (5) with end and outer coil is used end circle (6); Inner coil is positioned at inner ring with end circle (5), along the circumferential direction is evenly distributed with some first step formula breach (50) on it; Outer coil is positioned at the outer ring with end circle (6), along the circumferential direction is evenly distributed with some second step formula breach (60) on it.
2. a kind of end coil structures that is used for two-layer spiral coil as claimed in claim 1 is characterized in that, first step formula breach (50) side is provided with the breach (51) of placing fan-shaped cushion block (7).
3. a kind of end coil structures that is used for two-layer spiral coil as claimed in claim 1 is characterized in that, said inner coil is identical with the height of end circle (6) with outer coil with end circle (5).
4. a kind of end coil structures that is used for two-layer spiral coil as claimed in claim 1; It is characterized in that; First step formula breach (50) and second step formula breach (60) all are skewed, and the incline direction of the incline direction of second step formula breach (60) and first step formula breach (50) is opposite.
5. a kind of end coil structures that is used for two-layer spiral coil as claimed in claim 1; It is characterized in that inner coil is identical with the quantity of the second step formula breach (60) on the end circle (6) with outer coil with the quantity of the first step formula breach (50) on the end circle (5).
6. a kind of end coil structures that is used for two-layer spiral coil as claimed in claim 1 is characterized in that, inner coil is provided with 4 first step formula breach (50) with end circle (5), and outer coil is provided with 4 second step formula breach (60) with end circle (6).
7. a kind of end coil structures that is used for two-layer spiral coil as claimed in claim 1 is characterized in that, inner coil encloses (6) all ringwise and concentric setting with end circle (5) and outer coil with end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201782657U CN202549579U (en) | 2012-04-24 | 2012-04-24 | End ring structure for double-layer spiral coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201782657U CN202549579U (en) | 2012-04-24 | 2012-04-24 | End ring structure for double-layer spiral coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549579U true CN202549579U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201782657U Expired - Lifetime CN202549579U (en) | 2012-04-24 | 2012-04-24 | End ring structure for double-layer spiral coil |
Country Status (1)
| Country | Link |
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| CN (1) | CN202549579U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070502A (en) * | 2015-09-17 | 2015-11-18 | 珠海智新自动化科技有限公司 | Diaphragm for winding double-layer coil |
| CN105324823A (en) * | 2013-06-26 | 2016-02-10 | Abb技术有限公司 | Method for producing a coil device, an end ring element and a coil device having an end ring element |
| CN107863230A (en) * | 2017-11-03 | 2018-03-30 | 天威保变(合肥)变压器有限公司 | A kind of novel screw type coil |
| CN109360722A (en) * | 2018-11-21 | 2019-02-19 | 福州天宇电气股份有限公司 | A kind of bilayer layer-type winding transposition structure and its manufacturing method |
-
2012
- 2012-04-24 CN CN2012201782657U patent/CN202549579U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105324823A (en) * | 2013-06-26 | 2016-02-10 | Abb技术有限公司 | Method for producing a coil device, an end ring element and a coil device having an end ring element |
| CN105324823B (en) * | 2013-06-26 | 2018-07-17 | Abb瑞士股份有限公司 | Manufacture method, end ring element and the coil device for having end ring element of coil device |
| CN105070502A (en) * | 2015-09-17 | 2015-11-18 | 珠海智新自动化科技有限公司 | Diaphragm for winding double-layer coil |
| CN107863230A (en) * | 2017-11-03 | 2018-03-30 | 天威保变(合肥)变压器有限公司 | A kind of novel screw type coil |
| CN109360722A (en) * | 2018-11-21 | 2019-02-19 | 福州天宇电气股份有限公司 | A kind of bilayer layer-type winding transposition structure and its manufacturing method |
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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: 20121121 |