CN113963934A - Spiral coil outlet axial leading-out method - Google Patents
Spiral coil outlet axial leading-out method Download PDFInfo
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- CN113963934A CN113963934A CN202111115492.5A CN202111115492A CN113963934A CN 113963934 A CN113963934 A CN 113963934A CN 202111115492 A CN202111115492 A CN 202111115492A CN 113963934 A CN113963934 A CN 113963934A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
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Abstract
The invention provides an axial leading-out method for a spiral coil outlet, which belongs to the technical field of transformer manufacturing and comprises the following steps: a plurality of leads at the leading-out position of the spiral coil are arranged in order; radially bending the first wire on the outermost side in the spiral coils along a first bending point; radially bending the first lead along a second bending point, wherein the axial direction of the first lead after the first lead is radially bent is consistent with the axial direction of the spiral coil; sequentially bending a plurality of wires which are positioned at the inner side of the first wire and connected with the first wire in parallel in the radial direction and the radial direction; the lead wires of the multiple rows of spiral coils are bent in the radial direction and the radial direction; the bent wire is integrally bound by using corrugated cable paper. According to the spiral coil outlet axial leading-out method provided by the invention, a plurality of leads on the original coil are directly led out by a lead bending method without welding, so that hidden danger of welding copper strips on coil quality is avoided; the lead climbing can not be caused, the operation efficiency is high, and the hidden quality trouble is small.
Description
Technical Field
The invention belongs to the technical field of transformer manufacturing, and particularly relates to a method for axially leading out a spiral coil.
Background
In the manufacturing process of the spiral coil of the transformer, due to the structural requirement of the transformer, leads of some coils need to cross the axial size of the whole coil along the outer diameter side of the coil, and lead out from one end to the other end of the coil to lead out a wiring. The existing wiring method for welding the copper strip by wire breaking or welding the copper strip independently not only can cause the improvement of workload, but also can increase the hidden trouble of quality to the coil by welding.
Disclosure of Invention
The invention aims to provide an axial leading-out method for a spiral coil leading-out head, which aims to realize direct leading-out of a coil original wire, avoid hidden danger of a welding copper strip on coil quality and achieve the purposes of saving production time and production cost.
In order to achieve the purpose, the invention adopts the technical scheme that: the method for axially leading out the spiral coil from the head comprises the following steps:
step 1, sequentially arranging a plurality of leads at leading-out positions of a plurality of rows of spiral coils;
step 2, taking the intersection point of the first wire on the outermost side in the first row of spiral coils and the leading-out position as a first bending point, and bending the first wire in the radial direction along the first bending point, wherein the axial direction of the first wire after being bent in the radial direction is consistent with the radial direction of the spiral coils;
step 3, taking a point of the first lead which is bent in the radial direction and is flush with the outermost side of the spiral coil in the radial direction as a second bending point, and radially bending the first lead along the second bending point, wherein the axial direction of the first lead which is bent in the radial direction is consistent with the axial direction of the spiral coil;
step 4, sequentially bending a plurality of wires which are positioned at the inner side of the first wire and are connected with the first wire in parallel in a radial direction and a radial direction, wherein the plurality of wires which are bent twice and the first wire are positioned on the same plane;
and 5, repeating the steps 2-4 until the wires of the multiple rows of spiral coils are bent in the radial direction and the radial direction.
As another embodiment of the present application, in step 2 and step 3, the bending angles of the radial bending and the radial bending are both 90 degrees.
As another embodiment of the present application, in step 4, a plurality of wires in the same spiral coil are tightly attached.
As another embodiment of the present application, in step 4, after the plurality of wires in the same row of spiral coils are bent twice, the plane where the plurality of wires are located is tangential to the cross section of the spiral coils.
As another embodiment of the present application, in step 5, a connection line of the first bending point in the plurality of rows of spiral coils is parallel to an axis of the spiral coil.
As another embodiment of the present application, in step 5, after the wires of the plurality of rows of spiral coils are radially bent, the wire of the spiral coil bent later is positioned above the wire of the spiral coil bent earlier.
As another embodiment of the present application, in step 5, after the wires of the multiple rows of spiral coils are radially bent, the wires located above and the wires located below are tightly attached to each other.
As another embodiment of the present application, in step 5, the bent wire is wrapped with corrugated cable paper.
As another embodiment of the present application, in step 5, a formed paperboard slot with the same length as the coil axial direction is placed between the bent wire and the coil.
As another embodiment of the present application, in step 5, the bent wire is bound with the formed paperboard groove by means of a polyester shrink band.
The spiral coil outlet axial leading-out method provided by the invention has the beneficial effects that: compared with the prior art, the spiral coil outlet axial lead-out method has the advantages that a plurality of leads connected in parallel on the original coil are directly led out by a lead bending method without welding, so that hidden troubles caused by welding copper strips to coil quality are avoided; and the conductor does not climb, so that the operation efficiency is high, the potential quality hazard is small, and the operation quality of the coil can be greatly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating a radial bending effect of a wire of a first column of spiral coils according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating a radial bending effect of a wire of a first column of spiral coils according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an effect of axial lead-out of a multi-row spiral coil according to an embodiment of the present invention.
In the figure: 10. a first column of helical coils; 20. a second array of helical windings.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 3, the method for axially leading out the spiral coil end according to the present invention will now be described. The spiral coil outlet axial leading-out method comprises the following steps:
step 1, sequentially arranging a plurality of leads at leading-out positions of a plurality of rows of spiral coils;
step 2, taking the intersection point of the first wire on the outermost side in the first row of spiral coils 10 and the leading-out position as a first bending point, and bending the first wire in the radial direction along the first bending point, wherein the axial direction of the first wire after being bent in the radial direction is consistent with the radial direction of the spiral coils;
step 3, taking a point of the first lead which is bent in the radial direction and is flush with the outermost side of the spiral coil in the radial direction as a second bending point, and radially bending the first lead along the second bending point, wherein the axial direction of the first lead which is bent in the radial direction is consistent with the axial direction of the spiral coil;
step 4, sequentially bending a plurality of wires which are positioned at the inner side of the first wire and are connected with the first wire in parallel in a radial direction and a radial direction, wherein the plurality of wires which are bent twice and the first wire are positioned on the same plane;
and 5, repeating the steps 2-4 until the wires of the multiple rows of spiral coils are bent in the radial direction and the radial direction.
Compared with the prior art, the spiral coil outlet axial leading-out method provided by the invention has the advantages that firstly, the lead extending out of the first row of spiral coils 10 close to the middle part is radially bent; one wire on the outermost side of the spiral coil is a first wire, and in the bending process, the first wire is bent in the radial direction by taking the intersection point of the first wire and the leading-out position as a first bending point, and the axial direction of the first wire after being bent in the radial direction is consistent with the radial direction of the spiral coil; and then, taking the intersection point of the first lead and the outer edge of the spiral coil as a second bending point, and radially bending the first lead, wherein the axial direction of the first lead after radial bending is consistent with the axial direction of the spiral coil.
Radially bending and radially bending a plurality of wires which are connected with the first wire in parallel in the first row of spiral coils 10 by referring to the first wire until the plurality of wires are bent; after all the wires of the first row of spiral coils 10 are bent, the wires of the second row of spiral coils 20 are bent with reference to the first row of spiral coils 10, and so on until all the wires of the multiple rows of spiral coils are bent.
According to the spiral coil outlet axial lead-out method provided by the invention, a plurality of leads connected in parallel on the original coil are directly led out by a lead bending method without welding, so that hidden danger of welding copper strips on coil quality is avoided; and the conductor does not climb, so that the operation efficiency is high, the potential quality hazard is small, and the operation quality of the coil can be greatly improved.
In some possible embodiments, referring to fig. 1 and 2, in step 2 and step 3, the bending angles of the radial bending and the radial bending are both 90 degrees.
The spiral coil comprises a plurality of leads which are sequentially arranged in parallel from inside to outside, the leads of the plurality of leads are sequentially arranged in parallel from top to bottom when extending out, and the leads are tightly attached. The first wire is a wire on the outermost side of the spiral coil, namely a wire on the uppermost end of the leading-out position, the intersection point of the first wire and the leading-out position is a first bending point, the first wire is upwards turned over for 90 degrees along the first bending point to realize radial bending, and the turned-over first wire and the spiral coil are radially consistent and perpendicular to the axis of the spiral coil and extend outwards in a radial state.
An intersection point exists between the first wire distributed along the radial direction of the spiral coil and the outermost side edge of the spiral coil, the intersection point is used as a second bending point, the first wire is turned over for 90 degrees again, the first wire is bent radially, the first wire after being bent radially covers the outer side of the spiral coil, and the axis of the first wire is parallel to the axis of the spiral coil.
The other conducting wires of the spiral coil and the first conducting wire adopt the same bending mode.
In some possible embodiments, referring to fig. 1 and fig. 2, in step 4, a plurality of wires in the same spiral coil are tightly attached.
After the first conducting wire is bent in the radial direction and bent in the radial direction, other conducting wires in the same row of spiral coils are bent in the radial direction and bent in the radial direction along the first conducting wire. In the radial bending and radial bending processes, the plurality of wires are required to be tightly attached.
Many wires on same spiral coil keep closely laminating throughout the in-process of buckling, and after radially buckling, many wires are located the coplanar, and the cross section of this plane tangential and spiral coil.
In some possible embodiments, referring to fig. 3, in step 5, the connection line of the first bending point in the multiple spiral coils is parallel to the axis of the spiral coil.
A plurality of first conducting wires exist in the multi-column spiral coil, and the connecting lines of the plurality of first conducting wires are parallel to the axis of the spiral coil. The first bending point is located at the intersection of the first conducting wire and the leading-out position, so that the connecting line of the first bending points on the plurality of first conducting wires is parallel to the axis of the spiral coil.
In some possible embodiments, referring to fig. 3, in step 5, after the wires of the multiple rows of spiral coils are radially bent, the wire of the spiral coil that is bent later is positioned above the wire of the spiral coil that is bent earlier.
When the bending of the wire on the first row of spiral coils 10 is finished, the bending of the wire on the second row of spiral coils 20 is started. The second row of spiral coils 20 and the first row of spiral coils 10 are arranged in parallel, the leading-out positions of the second row of spiral coils 20 are consistent, the first wires on the second row of spiral coils 20 are positioned at the outer sides of the first wires on the first row of spiral coils 10, second bending points need to be determined after the first wires on the second row of spiral coils 20 are bent in the radial direction, and the second bending points of the first wires on the second row of spiral coils are the intersection points of the first wires on the second row of spiral coils and the first wires on the first row of spiral coils; and radially bending the first conducting wire on the second row of spiral coils 20 along the second bending point, so that the first conducting wire on the second row of spiral coils 20 is positioned above the first conducting wire on the first row of spiral wires.
When the spiral coils are in multiple rows, the lead wires extending out of the multiple rows of spiral coils are bent in the radial direction, and the lead wires of the spiral coils bent at the back are positioned above the lead wires of the spiral coils bent at the front.
Specifically, after the wires of the multiple rows of spiral coils are radially bent, the wires positioned above and the wires positioned below are tightly attached.
The wires of the multi-column spiral coil are arranged in a layered mode after being bent in the radial direction, and the wires on the upper layer are tightly attached to the wires on the lower layer.
In some possible embodiments, in step 5, the bent wire is wrapped with corrugated cable paper, and a profiled cardboard groove having a length equal to the axial length of the coil is placed between the wire and the coil.
Optionally, the bent wire is bound with the formed paperboard groove by means of a polyester shrink band.
The bent wires need to be arranged neatly, the corrugated cable paper is used for overall wrapping, the wrapping length is larger than the axial size of the spiral coil, the wrapping thickness is set to be 3-6 mm according to the voltage grade of the spiral coil, a forming paperboard groove is arranged between the bent wires and the spiral coil, the length of the forming paperboard groove is equal to the axial length of the spiral coil, and finally the bent wires are bound together through a polyester shrinkage tape and the forming paperboard groove.
The root of the bent wire and the coil cake of the spiral coil are bound and fastened by using a polyester shrink band, and the bent wire and the coil cake of the spiral coil are fixed at intervals of 100-150 mm at the outer diameter side part of the spiral coil, so that the protection and binding process of leading out the outer diameter side of the wire is completed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The method for axially leading out the spiral coil is characterized by comprising the following steps of:
step 1, sequentially arranging a plurality of leads at leading-out positions of a plurality of rows of spiral coils;
step 2, taking the intersection point of the first wire on the outermost side in the first row of spiral coils and the leading-out position as a first bending point, and bending the first wire in the radial direction along the first bending point, wherein the axial direction of the first wire after being bent in the radial direction is consistent with the radial direction of the spiral coils;
step 3, taking a point of the first lead which is bent in the radial direction and is flush with the outermost side of the spiral coil in the radial direction as a second bending point, and radially bending the first lead along the second bending point, wherein the axial direction of the first lead which is bent in the radial direction is consistent with the axial direction of the spiral coil;
step 4, sequentially bending a plurality of wires which are positioned at the inner side of the first wire and are connected with the first wire in parallel in a radial direction and a radial direction, wherein the plurality of wires which are bent twice and the first wire are positioned on the same plane;
and 5, repeating the steps 2-4 until the wires of the multiple rows of spiral coils are bent in the radial direction and the radial direction.
2. The spiral-type coil pullout axial extraction method of claim 1, wherein in step 2 and step 3, the bending angle of radial bending and radial bending are both 90 degrees.
3. The spiral-type coil pullout axial extraction method of claim 2, wherein in step 4, a plurality of wires in the same spiral-type coil are tightly attached.
4. The spiral coil pullout axial extraction method of claim 3, wherein in step 4, the plurality of wires in the same row of spiral coils are bent twice, and the plane of the plurality of wires is tangential to the cross section of the spiral coils.
5. The spiral coil pullout axial extraction method of claim 4, wherein in step 5, the line of the first inflection points in the plural rows of spiral coils is parallel to the axis of the spiral coil.
6. The spiral-type coil pullout axial extraction method of claim 5, wherein in step 5, after the wires of the plural rows of spiral-type coils are radially bent, the wire of the spiral-type coil bent later is positioned above the wire of the spiral-type coil bent earlier.
7. The spiral coil pullout axial extraction method of claim 6, wherein in step 5, after the wires of the multiple rows of spiral coils are radially bent, the wires on the upper side are tightly attached to the wires on the lower side.
8. The spiral coil pullout axial pullout method of claim 7, wherein in step 5, the bent wire is wrapped with corrugated cable paper.
9. The spiral coil pullout axial extraction method of claim 8, wherein in step 5, a shaped paperboard slot having a length equal to the coil axial direction is placed between the bent wire and the coil.
10. The spiral coil pullout axial pullout method of claim 9, wherein in step 5, the bent wire is bound with the formed cardboard slot by means of a polyester shrink tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111115492.5A CN113963934A (en) | 2021-09-23 | 2021-09-23 | Spiral coil outlet axial leading-out method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111115492.5A CN113963934A (en) | 2021-09-23 | 2021-09-23 | Spiral coil outlet axial leading-out method |
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| Publication Number | Publication Date |
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| CN113963934A true CN113963934A (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111115492.5A Pending CN113963934A (en) | 2021-09-23 | 2021-09-23 | Spiral coil outlet axial leading-out method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07192936A (en) * | 1993-12-27 | 1995-07-28 | Fuji Electric Co Ltd | Leads for gas insulated transformer coils and manufacture thereof |
| CN103646779A (en) * | 2013-12-13 | 2014-03-19 | 保定天威集团特变电气有限公司 | First end inner diameter side axial leading method for transformer spiral coil |
| CN107516594A (en) * | 2017-10-17 | 2017-12-26 | 天津市百利纽泰克电气科技有限公司 | A kind of red copper band connection bending structure |
| CN107887154A (en) * | 2016-09-30 | 2018-04-06 | 特变电工沈阳变压器集团有限公司 | A kind of transformer spiral winding coiling technology for binding |
| CN209266169U (en) * | 2018-12-28 | 2019-08-16 | 西安天虹电气有限公司 | A kind of spiral interior loop of transformer is lifted one's head bending ejector |
-
2021
- 2021-09-23 CN CN202111115492.5A patent/CN113963934A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07192936A (en) * | 1993-12-27 | 1995-07-28 | Fuji Electric Co Ltd | Leads for gas insulated transformer coils and manufacture thereof |
| CN103646779A (en) * | 2013-12-13 | 2014-03-19 | 保定天威集团特变电气有限公司 | First end inner diameter side axial leading method for transformer spiral coil |
| CN107887154A (en) * | 2016-09-30 | 2018-04-06 | 特变电工沈阳变压器集团有限公司 | A kind of transformer spiral winding coiling technology for binding |
| CN107516594A (en) * | 2017-10-17 | 2017-12-26 | 天津市百利纽泰克电气科技有限公司 | A kind of red copper band connection bending structure |
| CN209266169U (en) * | 2018-12-28 | 2019-08-16 | 西安天虹电气有限公司 | A kind of spiral interior loop of transformer is lifted one's head bending ejector |
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