CN107785162B - Winding method of high-voltage-resistance transformer - Google Patents
Winding method of high-voltage-resistance transformer Download PDFInfo
- Publication number
- CN107785162B CN107785162B CN201610727217.1A CN201610727217A CN107785162B CN 107785162 B CN107785162 B CN 107785162B CN 201610727217 A CN201610727217 A CN 201610727217A CN 107785162 B CN107785162 B CN 107785162B
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- China
- Prior art keywords
- transformer
- winding
- turns
- enameled wire
- voltage
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- 238000004804 winding Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 14
- 239000011229 interlayer Substances 0.000 claims abstract description 13
- 239000004809 Teflon Substances 0.000 claims abstract description 5
- 229920006362 Teflon® Polymers 0.000 claims abstract description 5
- 239000002390 adhesive tape Substances 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229940127554 medical product Drugs 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- H01F41/06—Coil winding
-
- 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
- H01F41/12—Insulating of windings
- H01F41/122—Insulating between turns or between winding layers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
- Insulating Of Coils (AREA)
Abstract
The invention relates to a winding method of a high-voltage-resistance transformer, which comprises the following steps: s1, first, tightly winding a first layer to a space with the remaining n turns, wherein n is the number of layers of interlayer insulating tape; s2, adhering an insulating tape to the transformer groove, and winding the insulating tape and the enameled wire together to form the rest n turns; s3, after the interlayer insulating adhesive tape is wound, manually winding retaining walls on two sides of the transformer groove; and S4, repeating the step S1, repeating the steps in the same way until all turns are wound, and leading the enameled wire out to a transformer pin by using a Teflon guide tube to be fixed. In step S3, the retaining wall height is equal to the enameled wire diameter. Compared with the prior art, the invention has the beneficial effects that: the problem of small creepage distance is solved, the interlaminar withstand voltage and the turn-to-turn withstand voltage can reach ten thousand volts, the production process is simple, the processing speed is high, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of high-frequency transformers, in particular to a winding method of a high-voltage-withstanding transformer.
Background
In medical products, the safety requirements are extremely high, particularly for CF type medical equipment, which requires the adoption of double reinforced insulation, and in electrical and electronic systems, the double reinforced insulation basically adopts transformer coupling isolation. The existing devices are pursuing small size and light weight, so that linear transformers are gradually abandoned as isolation elements, and high-frequency transformers with smaller size and lighter weight are adopted. However, because the high-frequency transformer has a small volume and a small inter-layer withstand voltage, the conventional high-frequency transformer production process can only reach 1500 to 3000V, the creepage distance is small, the inter-layer withstand voltage and the inter-turn withstand voltage are small under the condition of requiring high withstand voltage, the proximity effect is large, and particularly, the defects are very obvious under the condition of requiring very high withstand voltage.
For the voltage resistance among windings, retaining walls are added on two sides of the width of a transformer slot, the width of each retaining wall is half of the required creepage distance, the retaining walls must be wound on an interlayer insulating tape, and the width of the insulating tape is the same as the width of the slot; or a UU-type transformer is adopted, and primary and secondary poles are respectively wound on the magnetic columns at two sides. For turn-to-turn voltage resistance, there is no requirement for medium and low voltage output transformers, but in medical products, very high voltage output is required, such as several kilovolts, even hundreds of kilovolts, and such applications require very high turn-to-turn voltage resistance and a severe winding process. For such high voltages, the number of winding turns is usually very large, and multi-layer winding is usually adopted, and 3 to 4 layers, or even 5 to 6 layers are usually adopted. Under the condition of high voltage, multilayer winding brings about that the voltage resistance between layers of the same winding is difficult to process. The existing way to deal with this problem is: after winding one layer of winding, the outgoing line is led out by a Teflon guide tube and hung on a transformer pin to be cut off, then an interlayer insulating tape and a retaining wall are wound, then a second layer is wound from the last hanging pin, and so on, the winding method has the following defects: the utilization rate of the transformer is not high; the manufacturing efficiency is not high; the leakage inductance of the transformer is large; more idle legs are required.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a winding method for a high voltage transformer, so as to solve the deficiencies in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the winding method of the high-voltage-resistance transformer comprises the following steps:
s1, first, tightly winding a first layer to a space with the remaining n turns, wherein n is the number of layers of interlayer insulating tape;
s2, adhering an insulating tape to the transformer groove, and winding the insulating tape and the enameled wire together to form the rest n turns;
s3, after the interlayer insulating adhesive tape is wound, manually winding retaining walls on two sides of the transformer groove;
and S4, repeating the step S1, repeating the steps in the same way until all turns are wound, and leading the enameled wire out to a transformer pin by using a Teflon guide tube to be fixed.
In the winding method of the high withstand voltage transformer, in step S3, the height of the dam is equal to the diameter of the enameled wire.
Compared with the prior art, the invention has the beneficial effects that:
the problem of small creepage distance is solved, the interlaminar withstand voltage and the turn-to-turn withstand voltage can reach ten thousand volts, the production process is simple, the processing speed is high, and the cost is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic flow chart of a winding method of a high-voltage transformer according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, the method for winding a high voltage transformer according to the present invention includes the following steps:
s1, first, tightly winding a first layer to a space with the remaining n turns, wherein n is the number of layers of interlayer insulating tape;
s2, adhering an insulating tape to the transformer groove, and winding the insulating tape and the enameled wire together to form the rest n turns;
s3, after the interlayer insulating adhesive tape is wound, manually winding retaining walls on two sides of the transformer groove;
and S4, repeating the step S1, repeating the steps in the same way until all turns are wound, and leading the enameled wire out to a transformer pin by using a Teflon guide tube to be fixed.
Wherein, in step S3, the height of the retaining wall is equal to the diameter of the enameled wire.
The winding method of step S3 has the following advantages:
A. the whole process does not need to break the wire and is continuously wound;
B. the utilization rate of the transformer window is effectively improved, a smaller magnetic core is favorably adopted, and the cost is reduced;
C. the transformer is compact in winding, and leakage inductance is effectively reduced;
D. the production efficiency is effectively improved;
E. effectively ensuring the primary and secondary voltage resistance and the interlayer voltage resistance and the creepage distance.
As can be seen from the above embodiments, the advantages of the present invention are:
the problem of small creepage distance is solved, the interlaminar withstand voltage and the turn-to-turn withstand voltage can reach ten thousand volts, the production process is simple, the processing speed is high, and the cost is reduced.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the above-described embodiments, which are only examples. Any equivalent modifications and substitutions for those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (1)
1. A method for winding a high-voltage transformer is characterized by comprising the following steps:
s1, first, tightly winding a first layer to a space with the remaining n turns, wherein n is the number of layers of interlayer insulating tape;
s2, adhering an insulating tape to the transformer groove, and winding the insulating tape and the enameled wire together to form the rest n turns;
s3, after the interlayer insulating adhesive tape is wound, manually winding retaining walls on two sides of the transformer groove;
and S4, repeating the step S1, repeating the steps in the same way until all turns are wound, leading the enameled wire out to a transformer pin by using a Teflon guide tube for fixing, and in the step S3, enabling the height of a retaining wall to be equal to the diameter of the enameled wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727217.1A CN107785162B (en) | 2016-08-25 | 2016-08-25 | Winding method of high-voltage-resistance transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727217.1A CN107785162B (en) | 2016-08-25 | 2016-08-25 | Winding method of high-voltage-resistance transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107785162A CN107785162A (en) | 2018-03-09 |
| CN107785162B true CN107785162B (en) | 2021-04-16 |
Family
ID=61439685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610727217.1A Expired - Fee Related CN107785162B (en) | 2016-08-25 | 2016-08-25 | Winding method of high-voltage-resistance transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107785162B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201804659U (en) * | 2010-04-16 | 2011-04-20 | 深圳市佳士科技股份有限公司 | Pulse transformer driving IGBT |
| CN102436915A (en) * | 2011-12-16 | 2012-05-02 | 华为技术有限公司 | Transformer and power source |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07201605A (en) * | 1993-12-29 | 1995-08-04 | Nec Corp | Transformer |
| US5844461A (en) * | 1996-06-06 | 1998-12-01 | Compaq Computer Corporation | Isolation transformers and isolation transformer assemblies |
| CN203941809U (en) * | 2014-06-05 | 2014-11-12 | 耀胜电子股份有限公司 | Winding structure of transformer |
-
2016
- 2016-08-25 CN CN201610727217.1A patent/CN107785162B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201804659U (en) * | 2010-04-16 | 2011-04-20 | 深圳市佳士科技股份有限公司 | Pulse transformer driving IGBT |
| CN102436915A (en) * | 2011-12-16 | 2012-05-02 | 华为技术有限公司 | Transformer and power source |
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| Publication number | Publication date |
|---|---|
| CN107785162A (en) | 2018-03-09 |
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Granted publication date: 20210416 |