CN104361981B - Multiwinding transformer - Google Patents
Multiwinding transformer Download PDFInfo
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- CN104361981B CN104361981B CN201410670731.7A CN201410670731A CN104361981B CN 104361981 B CN104361981 B CN 104361981B CN 201410670731 A CN201410670731 A CN 201410670731A CN 104361981 B CN104361981 B CN 104361981B
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Abstract
The present invention provides a kind of multiwinding transformer, including iron core and primary coil, also includes by multiple secondary coils of iron core genesis analysis；Multiple secondary coils are symmetrical above and below in the middle of iron core is distributed as 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 in the middle of iron core laterally ... above organize 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 in the middle of iron core laterally ... lower group the n-th secondary coil；Secondary coil in upper group and lower group is connected according to following corresponding relation: above organize the n-th secondary coil under group the 1st secondary coil；Group the n-th 1 secondary coil under upper group of the 2nd secondary coil ... above organize group the 1st secondary coil under the n-th secondary coil.This programme solves the problem that between conventional multiwinding transformer secondary windings, impedance does not waits.
Description
Technical field
The present invention relates to a kind of power transformer, the transformator of a kind of many secondary windings.
Background technology
The secondary coil 30 of multiwinding transformer is distributed the most at present, by iron core 20 genesis analysis, wherein 10 is primary coil, under this distribution mode, the secondary winding impedance big 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 big so that multiple secondary winding impedance skewness.Seeing according to experimental data, the impedance contrast at middle part and two ends has three times.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of multiwinding transformer, have employed new secondary coil distributed architecture, solves the problem that between conventional multiwinding transformer secondary windings, impedance does not waits.The technical solution used in the present invention is:
A kind of multiwinding transformer, including iron core and primary coil, also includes by multiple secondary coils of iron core genesis analysis；
Multiple secondary coils are symmetrical above and below in the middle of iron core is distributed as 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 in the middle of iron core laterally ... above organize 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 in the middle of iron core laterally ... lower group 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 the n-th secondary coil；
Upper group of the 2nd secondary coil-----lower group the (n-1)th secondary coil；
……
Upper group of the n-th secondary coil-----lower group the 1st secondary coil.
N is the positive integer more than 1.
Further, secondary coil has six, forms three secondary windings.
Further, secondary coil has 12, forms six secondary windings.
The present invention uses relatively simple easy structure, on the basis of the most too much increasing manufacturing cost, solves the problem that between conventional multiwinding transformer winding, impedance does not waits.
Accompanying drawing explanation
Fig. 1 is the structure composition schematic diagram of existing multiwinding transformer.
Fig. 2 is embodiments of the invention one schematic diagrams.
Fig. 3 is embodiments of the invention two schematic diagrams.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the invention will be further described.
Embodiment one.Current embodiment require that the secondary windings that three impedances of final acquisition are equal.
As in figure 2 it is shown, multiwinding transformer includes iron core 20 and primary coil 10, also include by 6 secondary coils 30 of iron core 20 genesis analysis.
These 6 secondary coils 30 are symmetrical above and below in the middle of iron core 20 is distributed as two groups, and each secondary coil 30 is spaced identical.
Assume that the leakage reactance near iron core 20 center is 1, then the leakage reactance 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 in the middle of iron core laterally, 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 in the middle of iron core laterally, 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 windings, three respective impedances of secondary windings of calculating simultaneously:
3011 3023: impedance 1+3=4；
3012 3022: impedance 2+2=4；
3013 3021: impedance 3+1=4；
Thus so that the Circuit Fault on Secondary Transformer i.e. winding impedance of secondary is equal.
Embodiment two.Current embodiment require that the secondary windings that six impedances of final acquisition are equal.
As it is shown on figure 3, multiwinding transformer includes iron core 20 and primary coil 10, also include by 12 secondary coils 30 of iron core 20 genesis analysis.
These 12 secondary coils 30 are symmetrical above and below in the middle of iron core 20 is distributed as two groups, and each secondary coil 30 is spaced identical.
Secondary coil in upper group is followed successively by upper group of the 1st secondary coil, upper group of the 2nd secondary coil in the middle of iron core laterally ... above group the 6th secondary coil, and 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 in the middle of iron core laterally ... lower group the 6th secondary coil, and 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 windings,
3011—3026；
3012—3025；
3013—3024；
……
3016—3021；
Owing to the interval of each secondary coil is identical, and upper and lower two groups symmetrical, the impedance of six secondary windings therefore eventually formed in this embodiment or equal.
It should be noted that in embodiment one and two, it is equal that each secondary coil is wound around the number of turns of iron core 20.And in the case of needing to obtain output voltage identical with the secondary windings 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 multiwinding transformer, including iron core (20) and primary coil (10), also includes by multiple secondary coils (30) of iron core (20) genesis analysis, it is characterised in that:
Multiple secondary coils (30) are symmetrical above and below in the middle of iron core 20 is distributed as two groups, and each secondary coil (30) is spaced identical；
Secondary coil in upper group is followed successively by upper group of the 1st secondary coil, upper group of the 2nd secondary coil in the middle of iron core laterally ... above organize 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 in the middle of iron core laterally ... lower group 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 the n-th secondary coil；
Upper group of the 2nd secondary coil-----lower group the (n-1)th secondary coil；
……
Upper group of the n-th secondary coil-----lower group the 1st secondary coil；
N is the positive integer more than 1.
2. multiwinding transformer as claimed in claim 1, it is characterised in that:
Secondary coil (30) has six, forms three secondary windings.
3. multiwinding transformer as claimed in claim 1, it is characterised in that:
Secondary coil (30) has 12, forms six secondary windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670731.7A CN104361981B (en) | 2014-11-20 | 2014-11-20 | Multiwinding transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670731.7A CN104361981B (en) | 2014-11-20 | 2014-11-20 | Multiwinding transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104361981A CN104361981A (en) | 2015-02-18 |
| CN104361981B true CN104361981B (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410670731.7A Active CN104361981B (en) | 2014-11-20 | 2014-11-20 | Multiwinding transformer |
Country Status (1)
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|---|---|
| CN (1) | CN104361981B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CS259844B1 (en) * | 1986-11-27 | 1988-11-15 | Ivan Kubie | Connection of supply multi-winding transformer's current overload protection |
| CN201298428Y (en) * | 2008-10-15 | 2009-08-26 | 山东达驰电气有限公司 | Low-voltage winding connecting structure of single-phase amorphous iron-core transformer |
| KR101198031B1 (en) * | 2012-06-13 | 2012-11-06 | 안희석 | Electromagnetic field shielding transformer which has the separation type of multiple magnetic field |
| CN203325665U (en) * | 2013-05-08 | 2013-12-04 | 特变电工股份有限公司 | Frequency-conversion phase-shift rectifier transformer |
| CN204242780U (en) * | 2014-11-20 | 2015-04-01 | 日新电机（无锡）有限公司 | Multi winding transformer |
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2014
- 2014-11-20 CN CN201410670731.7A patent/CN104361981B/en active Active
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| CN104361981A (en) | 2015-02-18 |
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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 |
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