CN204242779U - A kind of bifilar helix ring type transformer - Google Patents
A kind of bifilar helix ring type transformer Download PDFInfo
- Publication number
- CN204242779U CN204242779U CN201420695110.XU CN201420695110U CN204242779U CN 204242779 U CN204242779 U CN 204242779U CN 201420695110 U CN201420695110 U CN 201420695110U CN 204242779 U CN204242779 U CN 204242779U
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- pressure winding
- iron core
- high pressure
- low pressure
- coiling
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Abstract
The utility model discloses a kind of bifilar helix ring type transformer, the low pressure winding comprising iron core and be wound on successively on iron core and high pressure winding, described low pressure winding adopts double-spiral structure coiling, the double-stranded pair of cake is as two independently single-screws, and each single-screw is according to " 212 " or " 424 " transposition form coiling.The cross sectional shape of described iron core, low pressure winding and high pressure winding is ellipse, described low pressure winding adopts paper tinsel around structure, described high pressure winding adopts enamelled wire or glass fiber covered wire coiling, and being cast with epoxy resin, described iron core adopts the stacking type cold-reduced silicon sheet core structure of the full angled tape wedge angle seam of stairstepping seven grades, not punching.The each single-screw of the utility model is according to " 212 " or " 424 " transposition form coiling, after such coiling, crosspoint no longer exceeds width to a conductor thickness, thus after avoiding during coiling high pressure winding, or remove the oil duct in crosspoint, or the overall width increasing winding to defect.
Description
Technical field
The utility model relates to field transformer, particularly relates to a kind of bifilar helix ring type transformer.
Background technology
As shown in Figure 1, when existing drum type brake transformer low voltage winding is double-spiral structure, general employing coordinated transposition, when adopting coordinated transposition transposition, crosspoint exceeds width to there being a conductor thickness, when coiling high pressure winding afterwards, or remove the oil duct in crosspoint, otherwise the overall width increasing winding to.The drawback that the oil duct removing crosspoint brings is the increase in the temperature rise of winding, easily make winding produce local overheating, and if increase winding overall width to, the material of transformer whole can be increased.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of bifilar helix ring type transformer.
For solving the problems of the technologies described above, the utility model takes following technical scheme:
A kind of bifilar helix ring type transformer, comprise transformer body, described transformer body comprises iron core and the low pressure winding that is wound on successively on iron core and high pressure winding, described low pressure winding adopts double-spiral structure coiling, the double-stranded pair of cake is as two independently single-screws, and each single-screw is according to " 212 " or " 424 " transposition form coiling.
Further, the cross sectional shape of described iron core, low pressure winding and high pressure winding is ellipse, described low pressure winding adopts paper tinsel around structure, described high pressure winding adopts enamelled wire or glass fiber covered wire coiling, and being cast with epoxy resin, described iron core adopts the stacking type cold-reduced silicon sheet core structure of the full angled tape wedge angle seam of stairstepping seven grades, not punching.
Further, this low voltage winding in transformers and the upper and lower two ends of high-tension coil are equipped with compression nail pressing along hour direction during 12 of coil circumference, and the compression nail pressing at two ends all compresses low-voltage coil and high-tension coil by pressure strip, ensures the bulk strength of transformer.
Further, epoxy resins insulation cylinder is provided with between described low pressure winding and iron core.
Further, the ovality of described low pressure winding and iron core high pressure winding is 0.6-07.
Further, described iron core high pressure winding is folded block serial winding structure.
Beneficial effect: (1) the utility model low pressure winding adopts double-spiral structure coiling, the double-stranded pair of cake is as two independently single-screws, each single-screw is according to " 212 " or " 424 " transposition form coiling, after such coiling, crosspoint no longer exceeds width to a conductor thickness, thus after avoiding during coiling high pressure winding, remove the oil duct in crosspoint, otherwise increase winding overall width to defect.
(2) for meeting the requirement of ellipse coil, iron core adopts the core construction of stacking type, and adopt high-quality directional cold-rolling silicon steel disc, the full angled tape wedge angle seam of stairstepping seven grades, not punching, improves magnetic structure.Two kinds of structures all can ensure compared with same specification product, and no-load loss reduces by 10%, and no-load current declines 5%.
(3) low pressure winding all adopts paper tinsel around structure, and high pressure winding adopts epoxy casting, and impulse voltage distributions is good, and oil duct radiating efficiency is high.Improve transformer whole anti-short circuit capability.
(4) when the utility model makes, after the relevant main insulating structure of suitable adjuster body, be equipped with compression nail pressing by along hour direction during 12 of coil circumference, the compression nail pressing at two ends all compresses low-voltage coil and high-tension coil by pressure strip, ensures the bulk strength of transformer.
(5) adopt bifilar helix ring type transformer relative to same capacity transformer needed for raw material less, be conducive to being beneficial to materials saving.
Accompanying drawing explanation
Fig. 1 is existing double-spiral structure coordinated transposition schematic diagram.
Fig. 2 is bifilar helix ring type transformer schematic cross-section.
Fig. 3 is the utility model " 212 " transposition coiling schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 2, a kind of bifilar helix ring type transformer that the utility model provides, comprise transformer body, described transformer body comprises iron core and the low pressure winding that is wound on successively on iron core and high pressure winding, described low pressure winding adopts double-spiral structure coiling, the double-stranded pair of cake as two independently single-screws, each single-screw according to " 212 " or " 424 " transposition form coiling, as shown in Figure 3.
In addition, the cross sectional shape of iron core 1, low pressure winding 2 and high pressure winding 3 is ellipse, described low pressure winding 2 adopts paper tinsel around structure, described high pressure winding 3 adopts enamelled wire or glass fiber covered wire coiling, and be cast with epoxy resin, described iron core 1 adopts the stacking type cold-reduced silicon sheet core structure of the full angled tape wedge angle seam of stairstepping seven grades, not punching, as shown in Figure 2, cold-reduced silicon sheet ladder stepping lamination is arranged, to form lateral surface coiling 7(and low pressure winding 2 and high pressure winding 3) ellipsoidal structure.
In addition, this transformer low voltage winding 2 and high pressure winding about 3 two ends are equipped with compression nail pressing along hour direction during 12 of coil circumference.Suitably adjusting transformer body relevant main insulating structure during Product Assembly, by compressing along hour direction nail pressing during 12 of coil circumference, ensureing the bulk strength of transformer.
Insulating barrier 4 is provided with, this insulating barrier preferred epoxy insulating cylinder 4 between low pressure winding and iron core.The ovality of low pressure winding 2, iron core 1, high pressure winding 3 is 0.6-07.Iron core high pressure winding 3 is folded block serial winding structure.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. a bifilar helix ring type transformer, comprise transformer body, described transformer body comprises iron core and the low pressure winding that is wound on successively on iron core and high pressure winding, it is characterized in that: described low pressure winding adopts double-spiral structure coiling, the double-stranded pair of cake is as two independently single-screws, and each single-screw is according to " 212 " or " 424 " transposition form coiling.
2. a kind of bifilar helix ring type transformer according to claim 1, it is characterized in that: the cross sectional shape of described iron core, low pressure winding and high pressure winding is ellipse, described low pressure winding adopts paper tinsel around structure, described high pressure winding adopts enamelled wire or glass fiber covered wire coiling, and being cast with epoxy resin, described iron core adopts the stacking type cold-reduced silicon sheet core structure of the full angled tape wedge angle seam of stairstepping seven grades, not punching.
3. a kind of bifilar helix ring type transformer according to claim 1 and 2, is characterized in that: this transformer low voltage winding and the upper and lower two ends of high pressure winding are equipped with compression nail pressing along hour direction during 12 of coil circumference.
4. a kind of bifilar helix ring type transformer according to claim 1, is characterized in that: be provided with epoxy resins insulation cylinder between described low pressure winding and iron core.
5. a kind of bifilar helix ring type transformer according to claim 1, is characterized in that: the ovality of described low pressure winding and iron core high pressure winding is 0.6-07.
6. a kind of bifilar helix ring type transformer according to claim 1, is characterized in that: described iron core high pressure winding is folded block serial winding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695110.XU CN204242779U (en) | 2014-11-19 | 2014-11-19 | A kind of bifilar helix ring type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695110.XU CN204242779U (en) | 2014-11-19 | 2014-11-19 | A kind of bifilar helix ring type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204242779U true CN204242779U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420695110.XU Expired - Fee Related CN204242779U (en) | 2014-11-19 | 2014-11-19 | A kind of bifilar helix ring type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204242779U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109826A (en) * | 2017-12-12 | 2018-06-01 | 辽宁华冶集团发展有限公司 | A kind of mining general epoxy cast dry transformer trapezoidal coil structure |
| CN110648821A (en) * | 2019-10-31 | 2020-01-03 | 江苏思源赫兹互感器有限公司 | Transformer for station |
-
2014
- 2014-11-19 CN CN201420695110.XU patent/CN204242779U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109826A (en) * | 2017-12-12 | 2018-06-01 | 辽宁华冶集团发展有限公司 | A kind of mining general epoxy cast dry transformer trapezoidal coil structure |
| CN110648821A (en) * | 2019-10-31 | 2020-01-03 | 江苏思源赫兹互感器有限公司 | Transformer for station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |