CN102760571B - Winding method of high-frequency transformer - Google Patents
Winding method of high-frequency transformer Download PDFInfo
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- CN102760571B CN102760571B CN201210267781.1A CN201210267781A CN102760571B CN 102760571 B CN102760571 B CN 102760571B CN 201210267781 A CN201210267781 A CN 201210267781A CN 102760571 B CN102760571 B CN 102760571B
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Abstract
The invention relates to the technical field of transformers, in particular to a winding method of a high-frequency transformer. The winding method comprises the following steps of: (1) starting two strands for a winding N2 at a framework starting end 7, starting one strand for a winding N3 at a framework starting end 8, and starting one strand for a winding N4 at a framework starting end 10; (2) twisting four strands obtained in the step (1) into a strand of twisted wire; (3) uniformly and tightly winding the twisted wire obtained in the step (2) around a framework winding groove for three layers, hanging the tail end of a strand of wire of the winding N3 at a framework take-up end 9, and hanging the tail end of a strand of wire of the winding N4 at a framework starting end 8; and (4) winding two strands of wires of the winding N2 by one more circle, and hanging the tail ends of the two strands of wires at a framework take-up end 6. The winding method of a secondary winding is changed, so that the electromagnetic coupling among secondary windings can be improved, the phenomenon of voltage drift of secondary windings is avoided, and the performance of the high-frequency transformer is improved.
Description
Technical field
The invention belongs to transformer technology field, particularly relate to a kind of method for winding of high frequency transformer.
Background technology
The function of power transformer is power transmission, voltage transformation and insulation isolation, as a kind of main soft magnetism electromagnetic component, in power technology He in power electronic technology, is widely used.
High frequency transformer is the topmost part of Switching Power Supply.High frequency transformer is the power transformer that operating frequency surpasses intermediate frequency (10kHz), is mainly used in making high-frequency switch power transformer in high frequency switch power, is also useful on and in high frequency inverter and Inverter Welder, makes high frequency inverter transformer.
In prior art, high frequency transformer generally comprises three secondary winding, its winding mode be three lines and around, interlayer is isolated with adhesive tape, is called the mode of multilayer isolated windings, the mode of this multilayer isolated windings, between secondary winding, be coupled poor, cause being applied among circuit, easily occur output winding voltage drift (being generally that voltage is higher), be difficult to control.
Summary of the invention
The method for winding that the object of the invention is to avoid weak point of the prior art and a kind of high frequency transformer is provided, the method for winding of this high frequency transformer can make the electromagnetic coupled between each secondary winding better, thereby solve the phenomenon of the voltage drift of secondary winding, improve the performance of high frequency transformer.
Object of the present invention is achieved through the following technical solutions.
A kind of method for winding of high frequency transformer is provided, high frequency transformer comprise skeleton, iron core, elementary around
Group and secondary winding, iron core is located at skeleton, and armature winding and secondary winding are all set around iron core, and it is secondary
The method for winding of winding comprises the steps:
(1) winding N2 two strands of line end 7 end initial lines in skeleton, winding N3 in skeleton line end 8 end initial lines one, winding N4 in skeleton line end 10 end initial lines one;
(2) four strands of (1) are twisted into one twistedwire;
(3) twistedwire of (2) is evenly close after three layers around backbone winding wire casing, the end of a strand of winding N3 is hung on to skeleton take-up end 9 ends, the end of a strand of winding N4 is hung on to skeleton and play line end 8 ends;
(4) by two strands of winding N2 again around a circle, the end of two strands is hung on to skeleton take-up end 6 ends.
Preferably, in step (3), every layer of twistedwire is five circles.
Another is preferred, and two strands of winding N2 are provided with blue insulated hull, and a strand of winding N3 is provided with green insulated hull, and a strand of winding N4 is provided with red insulated hull.
Another is preferred, and the diameter of four strands is all set to 0.35 millimeter.
Another is preferred, and armature winding comprises winding N1, winding N5 and auxiliary winding N6, and the coiling sequencing of armature winding and secondary winding is winding N1, secondary winding, winding N5 and auxiliary winding N6.
Preferred, the method for winding of winding N1 is: by skeleton rise line end 3 end initial lines one, one wire-wound backbone winding wire casing is evenly close around two-layer, every layer hang on skeleton take-up end 2 ends after 48 circles.
Further, the method for winding of winding N5 is: by skeleton, play two strands of line end 2 end initial lines, two strands are evenly close around two-layer around backbone winding wire casing, and every layer hang on skeleton take-up end 1 end after 30 circles.
Further, the method for winding of auxiliary winding N6 is: by skeleton rise line end 5 end initial lines one, one wire-wound backbone winding wire casing is evenly close around one deck, this layer is 17 circles, then hang on skeleton take-up end 4 ends.
Further, between different windings, be provided with insulating tape, the method to set up of insulating tape is as follows:
(1) before backbone winding wire casing does not wind the line, insulating tape one deck is first set;
(2) after the complete winding N1 of coiling, three layers of insulating tapes are set;
(3) after the complete secondary winding of coiling, three layers of insulating tapes are set;
(4) after the complete winding N5 of coiling, insulating tape is set two-layer;
(5) after the complete auxiliary winding N6 of coiling, three layers of insulating tapes are set.
Another is preferred, between the two-layer coiling of winding N1, is provided with one deck insulating tape.
Beneficial effect of the present invention is as follows:
The present invention, by changing the method for winding of secondary winding, can make the electromagnetic coupled between each secondary winding better, thereby solves the phenomenon of the voltage drift of secondary winding, improves the performance of high frequency transformer.
Accompanying drawing explanation
The present invention will be further described to utilize accompanying drawing, but content in accompanying drawing does not form any limitation of the invention.
Fig. 1 is the coiling principle schematic of a kind of high frequency transformer of the present invention.
Fig. 2 is a schematic cross-section of a kind of high frequency transformer of the present invention.
In Fig. 1 and Fig. 2, include:
Embodiment
The invention will be further described with the following Examples.
The method for winding of a kind of high frequency transformer of the present embodiment, high frequency transformer comprises skeleton, iron core, armature winding and secondary winding, and iron core is located at skeleton, and armature winding and secondary winding are all set around iron core, as depicted in figs. 1 and 2, the method for winding of its secondary winding comprises the steps:
(1) winding N2 two strands of line end 7 end initial lines in skeleton, winding N3 in skeleton line end 8 end initial lines one, winding N4 in skeleton line end 10 end initial lines one;
(2) four strands of (1) are twisted into one twistedwire;
(3) twistedwire of (2) is evenly close after three layers around backbone winding wire casing, the end of a strand of winding N3 is hung on to skeleton take-up end 9 ends, the end of a strand of winding N4 is hung on to skeleton and play line end 8 ends;
(4) by two strands of winding N2 again around a circle, the end of two strands is hung on to skeleton take-up end 6 ends.
In the past, the method for winding of secondary winding was: the first pitch of the laps of winding N2, and then winding N2, winding N3 and winding N4 are simultaneously around Shi Wuquan, and coiling is three layers altogether, and interlayer is used insulating tape 100 isolation, is called the mode of multilayer isolated windings.This secondary rolling thread mode makes the electromagnetic coupled of the winding between secondary poor, causes being applied among circuit, easily occurs output winding voltage drift (being generally that voltage is higher), is difficult to control.The present invention, by changing the method for winding of secondary winding, can make the electromagnetic coupled between each secondary winding better, thereby solves the phenomenon of the voltage drift of secondary winding, improves the performance of high frequency transformer.
Concrete, in step (3), every layer of twistedwire is five circles.
Concrete, two strands of winding N2 are provided with blue insulated hull, and a strand of winding N3 is provided with green insulated hull, and a strand of winding N4 is provided with red insulated hull.The line of different windings arranges the insulated hull of different colours, convenient identification.
Concrete, the diameter of four strands is all set to 0.35 millimeter.
A kind of method for winding of high frequency transformer, other structures of the present embodiment are identical with embodiment 1, difference is: armature winding comprises winding N1, winding N5 and auxiliary winding N6, and the coiling sequencing of armature winding and secondary winding is winding N1, secondary winding, winding N5 and auxiliary winding N6.
Method for winding between armature winding and secondary winding is called sandwich winding, have the following advantages: the leakage inductance that 1, can reduce transformer, and reduce the benefit that leakage inductance brings, be that due to voltage spikes can reduce, make MOSFET(metal-oxide half field effect transistor Metal-Oxide-Semiconductor Field-Effect Transistor) voltage stress reduce;
2, improve EMI(electromagnetic interference): the common mode disturbances electric current being caused by MOSFET and fin also can reduce, thereby improves EMI; Owing to having added a secondary winding in elementary centre, so reduced the interlayer distributed capacitance of primary, and the minimizing of layer capacitance will make the parasitic oscillation in circuit reduce, the electric current and voltage stress that can reduce equally MOSFET and secondary commutation pipe, improves EMI.
Concrete, the method for winding of winding N1 is: by skeleton rise line end 3 end initial lines one, one wire-wound backbone winding wire casing is evenly close around two-layer, every layer hang on skeleton take-up end 2 ends after 48 circles.
Concrete, the method for winding of winding N5 is: by skeleton, play two strands of line end 2 end initial lines, two strands are evenly close around two-layer around backbone winding wire casing, every layer hang on skeleton take-up end 1 end after 30 circles.
Concrete, the method for winding of auxiliary winding N6 is: by skeleton rise line end 5 end initial lines one, one wire-wound backbone winding wire casing is evenly close around one deck, this layer is 17 circles, then hang on skeleton take-up end 4 ends.
Concrete, between different windings, being provided with insulating tape 100, the method to set up of insulating tape 100 is as follows:
(1), before backbone winding wire casing does not wind the line, insulating tape 100 one decks are first set;
(2) after the complete winding N1 of coiling, 100 3 layers of insulating tapes are set;
(3) after the complete secondary winding of coiling, 100 3 layers of insulating tapes are set;
(4) after the complete winding N5 of coiling, insulating tape 100 is set two-layer;
(5) after the complete auxiliary winding N6 of coiling, 100 3 layers of insulating tapes are set.
Concrete, between the two-layer coiling of winding N1, be provided with one deck insulating tape 100.
Concrete, the diameter of the line of winding N1 and winding N6 is 0.32 millimeter, and the diameter of the line of winding N5 is 0.26 millimeter.
Finally should be noted that; above embodiment is only for illustrating technical scheme of the present invention but not limiting the scope of the invention; although the present invention is explained in detail with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (6)
1. the method for winding of a high frequency transformer, high frequency transformer comprises skeleton, iron core, armature winding and secondary winding, iron core is located at skeleton, and armature winding and secondary winding are all set around iron core, it is characterized in that: the method for winding of secondary winding comprises the steps:
(1) winding N2 two strands of line end 7 end initial lines in skeleton, winding N3 in skeleton line end 8 end initial lines one, winding N4 in skeleton line end 10 end initial lines one;
(2) four strands of (1) are twisted into one twistedwire;
(3) twistedwire of (2) is evenly close after three layers around backbone winding wire casing, the end of a strand of winding N3 is hung on to skeleton take-up end 9 ends, the end of a strand of winding N4 is hung on to skeleton and play line end 8 ends;
(4) by two strands of winding N2 again around a circle, the end of two strands is hung on to skeleton take-up end 6 ends;
Armature winding comprises winding N1, winding N5 and auxiliary winding N6, and the coiling sequencing of armature winding and secondary winding is winding N1, secondary winding, winding N5 and auxiliary winding N6,
The method for winding of winding N1 is: by skeleton rise line end 3 end initial lines one, one wire-wound backbone winding wire casing is evenly close around two-layer, every layer hang on skeleton take-up end 2 ends after 48 circles,
The method for winding of winding N5 is: by skeleton, play two strands of line end 2 end initial lines, two strands are evenly close around two-layer around backbone winding wire casing, and every layer hang on skeleton take-up end 1 end after 30 circles,
The method for winding of auxiliary winding N6 is: by skeleton rise line end 5 end initial lines one, one wire-wound backbone winding wire casing is evenly close around one deck, this layer is 17 circles, then hang on skeleton take-up end 4 ends.
2. the method for winding of a kind of high frequency transformer according to claim 1, is characterized in that: in step (3), the number of turns of every layer of twistedwire winding is five circles.
3. the method for winding of a kind of high frequency transformer according to claim 1, is characterized in that: two strands of winding N2 are provided with blue insulated hull, and a strand of winding N3 is provided with green insulated hull, and a strand of winding N4 is provided with red insulated hull.
4. the method for winding of a kind of high frequency transformer according to claim 1, is characterized in that: the diameter of four strands is all set to 0.35 millimeter.
5. the method for winding of a kind of high frequency transformer according to claim 1, is characterized in that: between different windings, be provided with insulating tape, the method to set up of insulating tape is as follows:
(1) before backbone winding wire casing does not wind the line, insulating tape one deck is first set;
(2) after the complete winding N1 of coiling, three layers of insulating tapes are set;
(3) after the complete secondary winding of coiling, three layers of insulating tapes are set;
(4) after the complete winding N5 of coiling, insulating tape is set two-layer;
(5) after the complete auxiliary winding N6 of coiling, three layers of insulating tapes are set.
6. the method for winding of a kind of high frequency transformer according to claim 5, is characterized in that: between the two-layer coiling of winding N1, be provided with one deck insulating tape.
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| CN201210267781.1A CN102760571B (en) | 2012-07-31 | 2012-07-31 | Winding method of high-frequency transformer |
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| CN201210267781.1A CN102760571B (en) | 2012-07-31 | 2012-07-31 | Winding method of high-frequency transformer |
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| CN103606440B (en) * | 2013-12-02 | 2016-04-13 | 佛山市欧立电子有限公司 | A kind of method for winding of high frequency transformer and structure |
| CN105301385A (en) * | 2015-09-22 | 2016-02-03 | 东莞市奥海电源科技有限公司 | Method for detecting charger transformer EMC performance and circuit and tool |
| CN105914014A (en) * | 2016-05-05 | 2016-08-31 | 上海兆启新能源科技有限公司 | Single-phase high-power magnetic integrated high-frequency transformer |
| CN106024373B (en) * | 2016-07-28 | 2018-07-03 | 东莞市大忠电子有限公司 | The wire winding of a kind of transformer and using transformer made of the wire winding |
| CN111986918B (en) * | 2020-08-24 | 2022-03-29 | 西南交通大学青岛轨道交通研究院 | Electromagnetic coil winding method |
| CN112466633B (en) * | 2020-11-10 | 2021-12-03 | 佛山市欧立电子有限公司 | Foil wound transformer |
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| JPS524013A (en) * | 1975-06-30 | 1977-01-12 | Mitsubishi Electric Corp | Winding method of the transformer |
| JP3033031B2 (en) * | 1991-02-14 | 2000-04-17 | 株式会社キジマ | Small transformer winding method |
| JP4224090B2 (en) * | 2006-08-30 | 2009-02-12 | 三菱電機株式会社 | Ignition device for internal combustion engine and method for manufacturing secondary coil thereof |
| CN101567252A (en) * | 2009-02-12 | 2009-10-28 | 陈钦裕 | Novel winding method for high-frequency transformer coils |
| CN101789308A (en) * | 2010-03-19 | 2010-07-28 | 株洲南车时代电气股份有限公司 | Winding method for high-frequency transformer winding and high-frequency transformer |
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