CN204242780U - Multi winding transformer - Google Patents
Multi winding transformer Download PDFInfo
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- CN204242780U CN204242780U CN201420703045.0U CN201420703045U CN204242780U CN 204242780 U CN204242780 U CN 204242780U CN 201420703045 U CN201420703045 U CN 201420703045U CN 204242780 U CN204242780 U CN 204242780U
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- secondary coil
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- iron core
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- upper group
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Abstract
The utility model provides a kind of multi winding transformer, comprises iron core and primary coil, also comprises the multiple secondary coils by iron core genesis analysis; Multiple secondary coil is symmetrical up and down in the middle of iron core is two groups, and each secondary coil interval is identical; Secondary coil in upper group is followed successively by upper group of the 1st secondary coil, upper group of the 2nd secondary coil laterally in the middle of iron core ... upper group of the n-th secondary coil; Secondary coil in lower group is followed successively by lower group of the 1st secondary coil, lower group of the 2nd secondary coil laterally in the middle of iron core ... lower group of the n-th secondary coil; Secondary coil in upper group and lower group is connected according to following corresponding relation: upper group the 1st secondary coil-----lower group of the n-th secondary coil; Upper group of the 2nd secondary coil-----lower group of the (n-1)th secondary coil ... upper group of the n-th secondary coil-----lower group of the 1st secondary coil.This programme solves the problem that between multi winding transformer secondary winding, impedance does not wait in the past.
Description
Technical field
The utility model relates to a kind of power transformer, especially a kind of transformer of many secondary winding.
Background technology
The secondary coil 30 of current multi winding transformer distributes mostly as shown in Figure 1, by iron core 20 genesis analysis, wherein 10 is primary coil, under this distribution mode, the secondary winding impedance large near the leakage field of iron core 20 central part is little, the secondary winding impedance little near the leakage field at iron core 20 two ends is large, makes multiple secondary winding impedance skewness.Experimentally data are seen, the impedance contrast at middle part and two ends has three times.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of multi winding transformer, have employed new secondary coil distributed architecture, solves the problem that between multi winding transformer secondary winding, impedance does not wait in the past.The technical solution adopted in the utility model is:
A kind of multi winding transformer, comprises iron core and primary coil, also comprises the multiple secondary coils by iron core genesis analysis;
Multiple secondary coil is symmetrical up and down in the middle of iron core is two groups, and each secondary coil interval is identical;
Secondary coil in upper group is followed successively by upper group of the 1st secondary coil, upper group of the 2nd secondary coil laterally in the middle of iron core ... upper group of the n-th secondary coil;
Secondary coil in lower group is followed successively by lower group of the 1st secondary coil, lower group of the 2nd secondary coil laterally in the middle of iron core ... lower group of the n-th secondary coil;
Secondary coil in upper group and lower group is connected according to following corresponding relation:
Upper group of the 1st secondary coil-----lower group of the n-th secondary coil;
Upper group of the 2nd secondary coil-----lower group of the (n-1)th secondary coil;
……
Upper group of the n-th secondary coil-----lower group of the 1st secondary coil.
N be greater than 1 positive integer.
Further, secondary coil has six, forms three secondary winding.
Further, secondary coil has 12, forms six secondary winding.
The utility model adopts comparatively simple structure, is exceeding on the basis increasing manufacturing cost, solves the problem that between multi winding transformer winding, impedance does not wait in the past.
Accompanying drawing explanation
Fig. 1 is the structure composition schematic diagram of existing multi winding transformer.
Fig. 2 is embodiment one schematic diagram of the present utility model.
Fig. 3 is embodiment two schematic diagram of the present utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
Embodiment one.The secondary winding that the present embodiment needs final acquisition three impedances equal.
As shown in Figure 2, multi winding transformer comprises iron core 20 and primary coil 10, also comprises 6 secondary coils 30 by iron core 20 genesis analysis.
These 6 secondary coils 30 are symmetrical up and down in the middle of iron core 20 is two groups, and each secondary coil 30 interval is identical.
Suppose that the leakage reactance near iron core 20 center is 1, the leakage reactance so from center to both sides is followed successively by 1,2 and 3.
Secondary coil in upper group is followed successively by upper group of the 1st secondary coil, upper group of the 2nd secondary coil, upper group of the 3rd secondary coil laterally in the middle of iron core, and numbering is followed successively by 3011,3012,3013;
Secondary coil in lower group is followed successively by lower group of the 1st secondary coil, lower group of the 2nd secondary coil, lower group of the 3rd secondary coil laterally in the middle of iron core, and numbering is followed successively by 3021,3022,3023;
Secondary coil in upper group and lower group is connected according to following corresponding relation, to form three secondary winding, calculates three secondary winding impedances separately simultaneously:
3011-3023: impedance 1+3=4;
3012-3022: impedance 2+2=4;
3013-3021: impedance 3+1=4;
So just can make Circuit Fault on Secondary Transformer and secondary winding impedance equal.
Embodiment two.The secondary winding that the present embodiment needs final acquisition six impedances equal.
As shown in Figure 3, multi winding transformer comprises iron core 20 and primary coil 10, also comprises 12 secondary coils 30 by iron core 20 genesis analysis.
These 12 secondary coils 30 are symmetrical up and down in the middle of iron core 20 is two groups, and each secondary coil 30 interval is identical.
Secondary coil in upper group is followed successively by upper group of the 1st secondary coil, upper group of the 2nd secondary coil laterally in the middle of iron core ... upper group of the 6th secondary coil, numbering is followed successively by 3011,3012 ... 3016;
Secondary coil in lower group is followed successively by lower group of the 1st secondary coil, lower group of the 2nd secondary coil laterally in the middle of iron core ... lower group of the 6th secondary coil, numbering is followed successively by 3021,3022 ... 3026;
Secondary coil in upper group and lower group is connected according to following corresponding relation, to form six secondary winding,
3011—3026；
3012—3025；
3013—3024；
……
3016—3021；
Because the interval of each secondary coil is identical, and upper and lower two groups symmetrical, the therefore impedance of last six secondary winding formed or equal in this embodiment.
It should be noted that, in embodiment one and two, the number of turns that each secondary coil is wound around iron core 20 is equal.And when needing to obtain output voltage identical with the secondary winding in background technology Fig. 1, in Fig. 2 and Fig. 3, the number of turns of single secondary coil is the half in Fig. 1.
Claims (3)
1. a multi winding transformer, comprises iron core (20) and primary coil (10), also comprises the multiple secondary coils (30) by iron core (20) genesis analysis, it is characterized in that:
Multiple secondary coil (30) is symmetrical up and down in the middle of iron core 20 is two groups, and each secondary coil (30) interval is identical;
Secondary coil in upper group is followed successively by upper group of the 1st secondary coil, upper group of the 2nd secondary coil laterally in the middle of iron core ... upper group of the n-th secondary coil;
Secondary coil in lower group is followed successively by lower group of the 1st secondary coil, lower group of the 2nd secondary coil laterally in the middle of iron core ... lower group of the n-th secondary coil;
Secondary coil in upper group and lower group is connected according to following corresponding relation:
Upper group of the 1st secondary coil-----lower group of the n-th secondary coil;
Upper group of the 2nd secondary coil-----lower group of the (n-1)th secondary coil;
……
Upper group of the n-th secondary coil-----lower group of the 1st secondary coil;
N be greater than 1 positive integer.
2. multi winding transformer as claimed in claim 1, is characterized in that:
Secondary coil (30) has six, forms three secondary winding.
3. multi winding transformer as claimed in claim 1, is characterized in that:
Secondary coil (30) has 12, forms six secondary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703045.0U CN204242780U (en) | 2014-11-20 | 2014-11-20 | Multi winding transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703045.0U CN204242780U (en) | 2014-11-20 | 2014-11-20 | Multi winding transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204242780U true CN204242780U (en) | 2015-04-01 |
Family
ID=52772242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420703045.0U Withdrawn - After Issue CN204242780U (en) | 2014-11-20 | 2014-11-20 | Multi winding transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204242780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361981A (en) * | 2014-11-20 | 2015-02-18 | 日新电机（无锡）有限公司 | Multi-winding transformer |
-
2014
- 2014-11-20 CN CN201420703045.0U patent/CN204242780U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361981A (en) * | 2014-11-20 | 2015-02-18 | 日新电机（无锡）有限公司 | Multi-winding transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yao Yifeng Inventor after: Chen Gang Inventor after: Liu Mengkai Inventor after: Liu Xiaohui Inventor after: Cao Feng Inventor after: Wang Chun Inventor after: Xue Guanjun Inventor after: Xu Shengyan Inventor after: Yao Yifeng, Chen Gang, Liu Mengkai, Liu Xiaohui, Cao Feng, Wang Chun, Zhang Xiaohui, Xu Shengyan Inventor before: Yao Yifeng Inventor before: Chen Gang Inventor before: Liu Mengkai Inventor before: Chen Xiaohui Inventor before: Cao Feng Inventor before: Wang Chun Inventor before: Xue Guanjun Inventor before: Xu Shengyan Inventor before: Yao Yifeng, Chen Gang, Liu Mengkai, Chen Xiaohui, Cao Feng, Wang Chun, Zhang Xiaohui, Xu Shengyan |
|
| COR | Change of bibliographic data | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150401 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |