CN208385126U - Transformer and coil block - Google Patents
Transformer and coil block Download PDFInfo
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- CN208385126U CN208385126U CN201821035145.5U CN201821035145U CN208385126U CN 208385126 U CN208385126 U CN 208385126U CN 201821035145 U CN201821035145 U CN 201821035145U CN 208385126 U CN208385126 U CN 208385126U
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Abstract
The utility model provides a kind of transformer and coil block, is related to technical field of transformation equipment.The transformer includes shell and is mounted on the intracorporal coil block of shell, coil block includes the high-tension coil of subsection setup and the low-voltage coil of corresponding segments setting, insulation assembly is provided between adjacent two sections of the opposite end of low-voltage coil, low-voltage coil corresponding with high-tension coil is in subsection setup, make to maintain ampere-turn equilibrium between low-voltage coil and high-tension coil, it avoids because ampere-turn is distributed imbalance, the case where bringing lateral leakage field, prevent lateral leakage field from generating short-circuit mechanical force, cause low-voltage coil axial and radial deformation and generation conducting wire short circuit, solves the problems, such as hot-spot in transformer, ensure the reliability and safety of transformer work.
Description
Technical field
The utility model relates to technical field of transformation equipment, and in particular to a kind of transformer and coil block.
Background technique
In transformer, coil block is crucial components, the high-voltage line including the generation electromagnetic induction being correspondingly arranged
Circle and low-voltage coil in order to reduce local field strength prevent the conducting wire of high-tension coil breakdown, and usual high-tension coil is using segmentation
Structure type, the insulator for separating up and down is provided between adjacent two sections of windings.But due to existing on high-tension coil
Without winding portion, the global magnetic field of coil block is affected, makes the ampere-turn equilibrium generated between former low-voltage coil and high-tension coil
It is broken.When ampere-turn distribution is uneven, lateral leakage field situation is just produced, lateral leakage field can generate biggish short-circuit mechanical force,
Easily cause the axial and radial deformation of low-voltage coil and generation conducting wire short circuit.In addition, can also be produced in the transformer of large capacity
The problem of raw hot-spot, influences the reliability and safety of transformer work.
Utility model content
The purpose of this utility model is to provide a kind of transformer, with solve transformer functional reliability in the prior art and
The low problem of safety.The purpose of this utility model, which also resides in, provides a kind of coil block, to solve coil group in the prior art
Part easily causes the problem of winding deformation and conducting wire short circuit there are biggish short-circuit mechanical force.
To achieve the above object, the technical solution of the transformer of the utility model is:
Transformer includes shell and is mounted on the intracorporal coil block of shell, and coil block includes iron core and is wrapped in iron core
On high-tension coil and low-voltage coil, high-tension coil subsection setup in the axial direction, low-voltage coil also subsection setup in the axial direction, and
It is corresponding with high-tension coil to be segmented position.
The utility model has the advantages that it is also in subsection setup that low-voltage coil is corresponding with high-tension coil, make low-voltage coil and high-tension coil it
Between maintain ampere-turn equilibrium as far as possible, avoid the case where bringing lateral leakage field because of ampere-turn distribution imbalance, prevent the production of lateral leakage field
Raw short circuit mechanical force causes low-voltage coil axial and radial deformation and generation conducting wire short circuit, solves local mistake in transformer
The problem of heat, it is ensured that the reliability and safety of transformer work.
In order to guarantee that low-voltage coil and high-tension coil keep the effect of ampere-turn equilibrium, preferably make adjacent the two of low-voltage coil
The section gap between section gap two segmentation adjacent with high-tension coil between segmentation is equal.
Specifically, low-voltage coil realizes segmentation by C-shaped insulation assembly, is located at C-shaped in adjacent two sections of low-voltage coils and insulate
The conducting wire of one section of coil of component side is drawn by the opening of C-shaped insulation assembly and is wound in the other side of C-shaped insulation assembly
Form another section of coil.
In oil-immersed transformer, C-shaped insulation assembly includes C-shaped filler strip and the cushion block that is installed on C-shaped filler strip, cushion block
Have multiple and be evenly distributed in circumferential direction, forms oil passage between adjacent two cushion block.It is can be realized in this way in low-voltage coil
It is effective excessively oily at adjacent two sections of interval locations, convenient for heat dissipation.
To achieve the above object, the technical solution of the coil block of the utility model is:
Coil block includes iron core and the high-tension coil and low-voltage coil that are wrapped on iron core, and high-tension coil is in the axial direction
Subsection setup, low-voltage coil also subsection setup in the axial direction, and it is corresponding with high-tension coil to be segmented position.
The utility model has the advantages that it is also in subsection setup that low-voltage coil is corresponding with high-tension coil, make low-voltage coil and high-tension coil it
Between maintain ampere-turn equilibrium as far as possible, avoid the case where bringing lateral leakage field because of ampere-turn distribution imbalance, prevent the production of lateral leakage field
Raw short circuit mechanical force causes low-voltage coil axial and radial deformation and generation conducting wire short circuit, solves local mistake in transformer
The problem of heat, it is ensured that the reliability and safety of transformer work.
In order to guarantee that low-voltage coil and high-tension coil keep the effect of ampere-turn equilibrium, preferably make adjacent the two of low-voltage coil
The section gap between section gap two segmentation adjacent with high-tension coil between segmentation is equal.
Specifically, low-voltage coil realizes segmentation by C-shaped insulation assembly, is located at C-shaped in adjacent two sections of low-voltage coils and insulate
The conducting wire of one section of coil of component side is drawn by the opening of C-shaped insulation assembly and is wound in the other side of C-shaped insulation assembly
Form another section of coil.
In oil-immersed transformer, C-shaped insulation assembly includes C-shaped filler strip and the cushion block that is installed on C-shaped filler strip, cushion block
Have multiple and be evenly distributed in circumferential direction, forms oil passage between adjacent two cushion block.It is can be realized in this way in low-voltage coil
It is effective excessively oily at adjacent two sections of interval locations, convenient for heat dissipation.
Detailed description of the invention
Fig. 1 is the schematic diagram of the transformer of the utility model；
Fig. 2 is that the transformer of the utility model shows the partial structural diagram of high and low pressure coil winding arrangement；
Fig. 3 is that the low-voltage coil of the utility model winds schematic diagram；
Fig. 4 is the main view of insulation assembly；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the sectional view of single-turn circular coil.
In figure: 10- shell, 20- coil block, 30- conducting wire, 31- insulation sheath, 5- low-voltage coil, 50- low pressure fragment bit
It sets, 501- filler strip, 502- cushion block, 6- high-tension coil, 60- high-pressure subsection position.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
The specific embodiment 1 of the transformer of the utility model, as shown in Figures 1 to 6, the transformer include shell 10 and
Coil block 20 in the housing 10 is installed, is perfused with insulating oil in shell.Coil block 20 includes iron core, is wound on iron core
High-tension coil 6 and low-voltage coil 5.Wherein, low-voltage coil is longitudinal oil duct double helix, Zuo Raoxiang.Every phase coil total number of turns
It is 18, as shown in fig. 6, single turn and be 2*6 around form, including internal and around conducting wire 30, and is located at and outside conducting wire 30
Insulation sheath 31.Certainly, single-turn circular coil and can also be adjusted according to actual design parameter around mode.
High-tension coil 6 be include the segmental structure being segmented above and below, segmental structure herein refers to that high-tension coil is on the whole
The same coil, only coiling to herein when conducting wire transition be axially straightened form axially spaced-apart, formed does not have coiling substantially
The high-pressure subsection position 60 of conducting wire.High-pressure subsection position 60 can be found out in Fig. 2.It is corresponding with high-tension coil 6, low-voltage coil 5
Also segmental structure is turned to, and segmental structure herein is identical as the segmental structure form of high-tension coil.As shown in Fig. 2, low pressure
The height of low pressure segmentation position 50 in the axial direction on coil 5 is corresponding with the high-pressure subsection position 60 of high-tension coil 6, axial
It is spaced of substantially equal.The upper and lower segmentation of low-voltage coil 5 is apart from top to bottom by insulation assembly, the C-shaped cyclic structure of insulation assembly, C
The aperture position of type cyclic structure is used to pass through for the transition conducting wire that is straightened between upper and lower section, and this point can be from Fig. 3
Out.
In the present embodiment, insulation assembly includes C-shaped ring shape filler strip 501 and is bonded in 501 one side of C-shaped ring shape filler strip
Cushion block 502, cushion block 502 have multiple and length direction uniform intervals settings along filler strip 501.Upper and lower segmentation is by the two sides of cushion block
Face support separates, in this way, forming vertical oil passage between each cushion block for the oil-immersed transformer of the present embodiment.
It is further preferable that the structure of low-voltage coil 5 is identical as the structure type of high-tension coil 6, and the high pressure of high-tension coil
The axial width of section gap is equal with the axial width of low pressure section gap.
Other several embodiments of the transformer of the utility model have been also listed herein.The first embodiment, with specific reality
The difference for applying example 1 is that insulation assembly can be annular structure, is needed at this time in a certain position of the circumferential direction of circular insulation assembly
Install for conducting wire axially across channel；Second of embodiment be with the difference of specific embodiment 1, and insulation assembly can be with
Cushion block is respectively provided in the two sides of filler strip；The third embodiment is, insulation assembly may include with the difference of specific embodiment 1
Two filler strips, each pad retaining clip are located at the position between two filler strips.
The transformer of the utility model incudes magnetic after connecting alternating current caused by low-voltage coil 5 and high-tension coil 6
The case where field is corresponding, and entire coil block keeps ampere-turn equilibrium, eliminates lateral leakage field, avoids because lateral leakage field is brought
Short-circuit mechanical force, solve the problems, such as coil block hot-spot, ensure that the work of entire transformer reliability and
Safety.
In the specific embodiment of the coil block of the utility model, with the specific embodiment of the transformer of the utility model
Each specific embodiment of coil block is identical, and details are not described herein.
Claims (8)
1. a kind of coil block, including iron core and the high-tension coil and low-voltage coil that are wrapped on iron core, high-tension coil is in axis
Upward subsection setup, characterized in that low-voltage coil also subsection setup in the axial direction, and it is corresponding with high-tension coil to be segmented position.
2. coil block according to claim 1, characterized in that the section gap between adjacent two segmentation of low-voltage coil
Section gap between two segmentation adjacent with high-tension coil is equal.
3. coil block according to claim 1 or 2, characterized in that low-voltage coil is realized by C-shaped insulation assembly to be divided
Section, the conducting wire that one section of coil of C-shaped insulation assembly side is located in adjacent two sections of low-voltage coils passes through the opening of C-shaped insulation assembly
It draws and is wound another section of coil in the other side of C-shaped insulation assembly.
4. coil block according to claim 3, characterized in that C-shaped insulation assembly includes C-shaped filler strip and is installed in C
Cushion block on shape filler strip, cushion block have multiple and uniformly distributed in circumferential direction.
5. a kind of transformer, including shell and it is mounted on the intracorporal coil block of shell, coil block includes iron core and is wrapped in
High-tension coil and low-voltage coil on iron core, high-tension coil subsection setup in the axial direction, characterized in that low-voltage coil is also in axial direction
Upper subsection setup, and it is corresponding with high-tension coil to be segmented position.
6. transformer according to claim 5, characterized in that low-voltage coil it is adjacent two segmentation between section gap with
Section gap between adjacent two segmentation of high-tension coil is equal.
7. transformer according to claim 5 or 6, characterized in that low-voltage coil realizes segmentation by C-shaped insulation assembly,
The conducting wire of one section of coil in adjacent two sections of low-voltage coils positioned at C-shaped insulation assembly side is drawn by the opening of C-shaped insulation assembly
It is wound another section of coil out and in the other side of C-shaped insulation assembly.
8. transformer according to claim 7, characterized in that C-shaped insulation assembly includes C-shaped filler strip and is installed in C-shaped
Cushion block on filler strip, cushion block have multiple and uniformly distributed in circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821035145.5U CN208385126U (en) | 2018-07-02 | 2018-07-02 | Transformer and coil block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821035145.5U CN208385126U (en) | 2018-07-02 | 2018-07-02 | Transformer and coil block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208385126U true CN208385126U (en) | 2019-01-15 |
Family
ID=64965394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821035145.5U Active CN208385126U (en) | 2018-07-02 | 2018-07-02 | Transformer and coil block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208385126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847331A (en) * | 2018-07-02 | 2018-11-20 | 河南森源电气股份有限公司 | A kind of transformer and coil block |
-
2018
- 2018-07-02 CN CN201821035145.5U patent/CN208385126U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847331A (en) * | 2018-07-02 | 2018-11-20 | 河南森源电气股份有限公司 | A kind of transformer and coil block |
| CN108847331B (en) * | 2018-07-02 | 2024-01-19 | 河南森源电气股份有限公司 | Transformer and coil assembly |
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