CN210489392U - Improved structure of transformer winding - Google Patents
Improved structure of transformer winding Download PDFInfo
- Publication number
- CN210489392U CN210489392U CN201922025142.4U CN201922025142U CN210489392U CN 210489392 U CN210489392 U CN 210489392U CN 201922025142 U CN201922025142 U CN 201922025142U CN 210489392 U CN210489392 U CN 210489392U
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- China
- Prior art keywords
- winding
- transformer
- copper foil
- copper
- copper strip
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- Expired - Fee Related
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- 238000004804 winding Methods 0.000 title claims abstract description 101
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 104
- 229910052802 copper Inorganic materials 0.000 claims abstract description 46
- 239000010949 copper Substances 0.000 claims abstract description 46
- 239000011889 copper foil Substances 0.000 claims description 54
- 238000009413 insulation Methods 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 230000009466 transformation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a transformer winding improves structure, including the transformer, the transformer includes coil skeleton, coil skeleton's surface winding has two-layer enameled wire winding, is equipped with first copper strips winding and second copper strips winding between the two-layer enameled wire winding respectively, and this first copper strips winding and second copper strips winding all twine on coil skeleton. The utility model discloses can conduct out the inside heat of transformer fast, greatly reduce the inside temperature of transformer, reduce the volume and the weight of transformer to this radiating efficiency who promotes the transformer and the radiating effect who improves the transformer has solved the poor and low problem of radiating efficiency of transformer radiating effect.
Description
Technical Field
The utility model relates to an aviation power supply transform technical field especially relates to high-power 12 pulse isolated form vary voltage rectifier uses the copper foil to come coiling transformer winding technique, specifically is a transformer winding structure with the copper foil coiling.
Background
With the development of aviation power supply conversion technology, the requirements on the volume and the weight of an AC/DC variable power supply are higher and higher, a transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, main components are a primary coil, a secondary coil and an iron core, and the transformer has the following main functions: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization, and the like, and the transformer comprises a transformer winding structure.
In the use process of the existing transformer winding structure, because the transformer winding structure generates high temperature during operation, the generated temperature exceeds the limit temperature of an insulating material; meanwhile, with the reduction of the volume and the weight of the winding of the existing transformer, the temperature inside the transformer is very high, so that the overall heat dissipation effect and the heat dissipation efficiency of the transformer are poor, and the service life of the transformer is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a transformer winding improves structure to solve the problem that the whole radiating effect of the transformer that proposes is poor and the radiating efficiency is low among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the transformer comprises a transformer body, wherein the transformer body comprises a coil framework, the outer surface of the coil framework is wound with two layers of enameled wire windings, a first copper strip winding and a second copper strip winding are arranged between the two layers of enameled wire windings respectively, and the first copper strip winding and the second copper strip winding are wound on the coil framework.
Preferably, a winding insulation film is arranged between the first copper strip winding and the second copper strip winding, and the winding insulation film is used for enabling the copper strip windings to be coupled more tightly.
Preferably, the first copper strip winding is formed by winding a first copper foil, and the second copper strip winding is formed by winding a second copper foil.
Preferably, a copper foil insulation film is arranged between the first copper foil and the second copper foil, and the copper foil insulation film is used for electric isolation between the first copper foil and the second copper foil.
Preferably, bus bars are welded to two ends of the first copper foil and two ends of the second copper foil respectively and are used for facilitating connection of the transformer and external electrical equipment.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses can come out the heat conduction of transformer inside, the rethread external forced air cooling or conduction radiating form dissipate inside heat, greatly reduced the inside temperature of transformer, reduced the volume and the weight of transformer to this heat dissipation efficiency who promotes the transformer, the life of extension transformer winding and transformer has solved the poor and low problem of radiating efficiency of transformer radiating effect, is favorable to using widely of this transformer winding structure.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view of a structure shown in fig. 1 according to the present invention.
In the figure: 1 transformer, 11 coil skeletons, 12 enameled wire windings, 13 first copper strip windings, 131 first copper foils, 14 second copper strip windings, 141 second copper foils, 15 winding insulation films and 16 copper foil insulation films.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the transformer comprises a transformer 1, wherein the transformer 1 comprises a coil framework 11, two layers of enameled wire windings 12 are wound on the outer surface of the coil framework 11, a first copper strip winding 13 and a second copper strip winding 14 are respectively arranged between the two layers of enameled wire windings 12, and the first copper strip winding 13 and the second copper strip winding 14 are wound on the coil framework 1; wherein the enameled wire winding 12 adopts any one of polyester enameled wire, polyurethane enameled wire and polyimide enameled wire winding; a winding insulation film 15 is arranged between the first copper strip winding 13 and the second copper strip winding 14, and the winding insulation film 15 is used for enabling the copper strip windings to be coupled more tightly; the first copper strip winding 13 is formed by winding a first copper foil 131, and the second copper strip winding 14 is formed by winding a second copper foil 141; a copper foil insulation film 16 is disposed between the first copper foil 131 and the second copper foil 141, and the copper foil insulation film 16 serves as electrical isolation between the first copper foil 131 and the second copper foil 141.
Bus bars are welded at two ends of the first copper foil 131 and two ends of the second copper foil 141 respectively, wherein the bus bars comprise any one of SP1-41A/1P type bus bars, SP1-41A/2P type bus bars and SP1-63A/3P type bus bars; the bus bar is used for facilitating the connection of the transformer 1 with external electrical equipment; the external electrical equipment includes a conventionally used QT-SR type air-cooled radiator.
The copper foil has the characteristics of high electrical conductivity, high thermal conductivity, corrosion resistance, proper strength and easy processing formability; the first copper strip winding 13 wound by the first copper foil 131 and the second copper strip winding 14 wound by the second copper foil 141 can conduct heat inside the transformer 1 by utilizing the high heat conduction, heat resistance and high temperature resistance of the copper foils, and then dissipate the heat inside the transformer through external air cooling or heat conduction.
The insulating film of the copper foil insulating film 16 and the winding insulating film 15 of the utility model adopts any one or two of a polyester film, a polypropylene film, a polytetrafluoroethylene film, a polyimide film and a polyimide-perfluoroethylene-propylene composite film; the copper foil insulation film 16 and the winding insulation film 15 have the advantages of thin thickness, flexibility, moisture resistance, high temperature resistance, high dielectric property, mechanical property and chemical stability.
The contact area between the first copper foil 131 and the second copper foil 141 is large, heat inside the transformer winding is more easily conducted to the surface of the transformer 1, and then the heat is conducted to a radiator through other cooling modes such as air cooling of the surface of the transformer 1 or adoption of a bus bar, so that the temperature of the transformer winding can be easily reduced, and the cooling effect is obvious; the copper foil insulating film 16 between the first copper foil 131 and the second copper foil 141 is a single-layer insulating film; the copper foil insulating film 15 between the first copper strip winding 13 and the second copper strip winding 14 is at least two layers of insulating films.
The working principle is as follows: the enameled wire winding 12, the first copper strip winding 13 and the second copper strip winding 14 are wound on the coil skeleton 11, the enameled wire winding 12 is wound on the coil skeleton 11, the first copper strip winding 13 and the second copper strip winding 14 are arranged between the two layers of enameled wire windings 12, the winding insulation film 15 is arranged between the first copper strip winding 13 and the second copper strip winding 14, the first copper strip winding 13 is formed by winding a first copper foil 131, the second copper strip winding 14 is formed by winding a second copper foil 141, and the copper foil insulation film 16 is arranged between the first copper foil 131 and the second copper foil 141.
The copper strip winding made by winding the copper foil is adopted, the high heat conduction, heat resistance and high temperature resistance of the copper foil can be utilized, the heat inside the transformer 1 is conducted out, the heat inside the transformer is dissipated by external air cooling or heat dissipation conduction, the temperature inside the transformer is greatly reduced, the size and the weight of the transformer 1 are reduced, the heat dissipation efficiency of the transformer 1 is improved, the service lives of the transformer winding and the transformer 1 are prolonged, the problems of poor heat dissipation effect and low heat dissipation efficiency of the transformer 1 are solved, and the popularization and the use of the transformer winding structure are facilitated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An improved structure of transformer winding comprises a transformer (1), and is characterized in that: the transformer (1) comprises a coil frame (11), wherein two layers of enameled wire windings (12) are wound on the outer surface of the coil frame (11), a first copper strip winding (13) and a second copper strip winding (14) are arranged between the two layers of enameled wire windings (12) respectively, and the first copper strip winding (13) and the second copper strip winding (14) are wound on the coil frame (11).
2. The improved transformer winding structure of claim 1, wherein: and a winding insulation film (15) is arranged between the first copper strip winding (13) and the second copper strip winding (14), and the winding insulation film (15) is used for enabling the copper strip windings to be coupled more tightly.
3. The improved transformer winding structure of claim 1, wherein: the first copper strip winding (13) is formed by winding a first copper foil (131), and the second copper strip winding (14) is formed by winding a second copper foil (141).
4. The improved transformer winding structure of claim 3, wherein: a copper foil insulating film (16) is arranged between the first copper foil (131) and the second copper foil (141), and the copper foil insulating film (16) is used for electric isolation between the first copper foil (131) and the second copper foil (141).
5. The improved transformer winding structure of claim 3, wherein: the bus bars are welded to the two ends of the first copper foil (131) and the two ends of the second copper foil (141) respectively and used for facilitating connection of the transformer (1) and external electrical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922025142.4U CN210489392U (en) | 2019-11-21 | 2019-11-21 | Improved structure of transformer winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922025142.4U CN210489392U (en) | 2019-11-21 | 2019-11-21 | Improved structure of transformer winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210489392U true CN210489392U (en) | 2020-05-08 |
Family
ID=70511190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922025142.4U Expired - Fee Related CN210489392U (en) | 2019-11-21 | 2019-11-21 | Improved structure of transformer winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210489392U (en) |
-
2019
- 2019-11-21 CN CN201922025142.4U patent/CN210489392U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200508 |