CN201383418Y - Double-cake coil formed by wires with unequal cross sections - Google Patents
Double-cake coil formed by wires with unequal cross sections Download PDFInfo
- Publication number
- CN201383418Y CN201383418Y CN200920111176U CN200920111176U CN201383418Y CN 201383418 Y CN201383418 Y CN 201383418Y CN 200920111176 U CN200920111176 U CN 200920111176U CN 200920111176 U CN200920111176 U CN 200920111176U CN 201383418 Y CN201383418 Y CN 201383418Y
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- cake
- wires
- wire
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- line cake
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Abstract
A double-cake coil formed by wires with unequal cross sections is particularly suitable for a transformer of an electric furnace with big electric current used in industrial production. The coil is formed by arraying a plurality of groups of wire cakes along the axial direction, each group of wire cakes are respectively formed by an upper wire cake and a lower wire cake, each group of wire cakes is connected with a wiring head, each layer of wire cakes are wounded by wires, the cross section areas of wires of each layer of wire cakes are unequal from the outer layer to the inner layer, and the cross section areas of the wires of the wire cakes on the outer layer are bigger than that of wires of the wire cakes in the inner layer. The double-cake coil wounded by wires with different cross sections can distribute wires with different cross section areas according to the intensity of magnetic field of the position of a wire cake in a magnetic field, reduces thermal values of the position coils through increasing the cross section areas of wires, improves the quality of a transformer, and prolongs the service span of the transformer.
Description
Technical field
The utility model belongs to the transformer coil technical field, relates to two disc coils that a kind of unequal section lead is formed, and is specially adapted to be used in the industrial production transformer of large-current electric stove.
Technical background
In the prior art, the transformer that uses on the large-current electric stove, two disc coils on the transformer are arranged vertically by many groups line cake and are formed, every group of line cake is made up of the reach the standard grade cake and two the line cakes of cake that roll off the production line respectively, a connector lug is installed on every group of line cake, each layer line cake is formed by the lead coiling, and the number of turn of lead and cross-sectional area all are to equate, uniformly.This coil in use because transformer coil residing magnetic field intensity difference of each line cake on axial height, the electric current on each two cake is also different.When coil working, generally speaking, the close residing magnetic field intensity of outer field line cake is greater than internal layer, thereby the current strength on the outer layer line cake is greater than internal layer, and it is excessive to cause outer coil to pass through electric current, the problem that outer coil wears out soon, burns easily.
Technical scheme
For solving problems of the prior art, two disc coils that the utility model provides a kind of unequal section lead to form, coil is arranged vertically by many groups line cake and is formed, every group of line cake is made up of the reach the standard grade cake and two the line cakes of cake that roll off the production line respectively, a connector lug is installed on every group of line cake, and each layer line cake is formed by the lead coiling, from the outer to the inner, the conductive wire cross-section of each layer line cake is long-pending unequal, the long-pending lead greater than interior layer line cake of the conductive wire cross-section of outer layer line cake.
Two disc coils that the lead coiling of employing different cross section forms, can take the arranging line cake according to line cake magnetic field intensity of present position in magnetic field, the position that magnetic field intensity is big, arrange the long-pending bigger line cake of conductive wire cross-section, by increasing the long-pending mode of conductive wire cross-section, reduce the caloric value of these position coils, make the heating situation of each line cake in the transformer coil obtain balance, avoided in the transformer, coil sections causes the problem of whole transformer quality decline because of by the excessive quick aging of electric current, damage.The employing the technical program can improve the quality of transformer greatly, prolongs the useful life of transformer.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model.
Execution mode
Embodiment: as shown in Figure 1, two disc coils that the unequal section lead is formed, coil is arranged vertically by many groups line cake and is formed, every group of line cake 1 is made up of the reach the standard grade cake 2 and 3 two the line cakes of cake that roll off the production line respectively, a connector lug 5 is installed on every group of line cake, and each layer line cake is formed by lead 4 coilings, from the outer to the inner, the conductive wire cross-section of each layer line cake is long-pending unequal, and the long-pending conductive wire cross-section greater than interior layer line cake of the conductive wire cross-section of outer layer line cake is long-pending; In same group of two-wire cake, near the outer field line cake of whole winding, the long-pending conductive wire cross-section greater than interior layer line cake of conductive wire cross-section is long-pending.
Claims (2)
1, two disc coils of unequal section lead composition, coil is arranged vertically by many groups line cake and is formed, every group of line cake (1) is made up of the cake of reaching the standard grade (2) and (3) two the line cakes of cake that roll off the production line respectively, a connector lug (5) is installed on every group of line cake, each layer line cake (1) is formed by lead (4) coiling, it is characterized in that: from the outer to the inner, the lead of each layer line cake (4) cross-sectional area is unequal, near the outer field line cake of whole winding, the long-pending conductive wire cross-section greater than interior layer line cake of outer layer line cake conductive wire cross-section is long-pending.
2, two disc coils of unequal section lead composition as claimed in claim 1 is characterized in that: in same group of two-wire cake, near outer field line cake lead (4), cross-sectional area is long-pending greater than the conductive wire cross-section of interior layer line cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920111176U CN201383418Y (en) | 2009-03-31 | 2009-03-31 | Double-cake coil formed by wires with unequal cross sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920111176U CN201383418Y (en) | 2009-03-31 | 2009-03-31 | Double-cake coil formed by wires with unequal cross sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383418Y true CN201383418Y (en) | 2010-01-13 |
Family
ID=41526890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920111176U Expired - Lifetime CN201383418Y (en) | 2009-03-31 | 2009-03-31 | Double-cake coil formed by wires with unequal cross sections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383418Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169750A (en) * | 2011-01-31 | 2011-08-31 | 张家港市沙洲特种变压器制造有限公司 | Coil winding of transformer |
| CN102306543A (en) * | 2011-05-30 | 2012-01-04 | 江苏华鹏变压器有限公司 | Continuous coil and winding method thereof |
| CN102881415A (en) * | 2011-07-11 | 2013-01-16 | 台达电子工业股份有限公司 | Combined winding structure and magnetic device |
| CN105070486A (en) * | 2015-09-11 | 2015-11-18 | 中广核达胜加速器技术有限公司 | Double-coil pancake coil used for solenoid transformer |
| CN106653290A (en) * | 2016-12-19 | 2017-05-10 | 保定天威集团特变电气有限公司 | Analysis and improvement methods for preventing local overheating of double pancake winding |
| CN106653314A (en) * | 2016-11-25 | 2017-05-10 | 保定天威集团特变电气有限公司 | Dual-pie type winding structure |
| CN106710850A (en) * | 2016-11-29 | 2017-05-24 | 保定天威集团特变电气有限公司 | Direct step-down 54-pulse rectifier transformer for direct current furnace |
-
2009
- 2009-03-31 CN CN200920111176U patent/CN201383418Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169750A (en) * | 2011-01-31 | 2011-08-31 | 张家港市沙洲特种变压器制造有限公司 | Coil winding of transformer |
| CN102169750B (en) * | 2011-01-31 | 2013-01-16 | 江苏天翔节能科技有限公司 | Coil winding of transformer |
| CN102306543A (en) * | 2011-05-30 | 2012-01-04 | 江苏华鹏变压器有限公司 | Continuous coil and winding method thereof |
| CN102881415A (en) * | 2011-07-11 | 2013-01-16 | 台达电子工业股份有限公司 | Combined winding structure and magnetic device |
| CN102881415B (en) * | 2011-07-11 | 2015-12-09 | 台达电子工业股份有限公司 | Composite type winding structure and magnetic devices |
| CN105070486A (en) * | 2015-09-11 | 2015-11-18 | 中广核达胜加速器技术有限公司 | Double-coil pancake coil used for solenoid transformer |
| CN106653314A (en) * | 2016-11-25 | 2017-05-10 | 保定天威集团特变电气有限公司 | Dual-pie type winding structure |
| CN106653314B (en) * | 2016-11-25 | 2018-08-07 | 保定天威集团特变电气有限公司 | A kind of double cake-type winding structures |
| CN106710850A (en) * | 2016-11-29 | 2017-05-24 | 保定天威集团特变电气有限公司 | Direct step-down 54-pulse rectifier transformer for direct current furnace |
| CN106653290A (en) * | 2016-12-19 | 2017-05-10 | 保定天威集团特变电气有限公司 | Analysis and improvement methods for preventing local overheating of double pancake winding |
| CN106653290B (en) * | 2016-12-19 | 2018-12-14 | 保定天威集团特变电气有限公司 | A kind of analysis and improved method preventing double pie winding hot-spots |
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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: 20100113 |