CN207268978U - A kind of AT power supplies tractive transformer low-voltage coil structure - Google Patents
A kind of AT power supplies tractive transformer low-voltage coil structure Download PDFInfo
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- CN207268978U CN207268978U CN201720950237.5U CN201720950237U CN207268978U CN 207268978 U CN207268978 U CN 207268978U CN 201720950237 U CN201720950237 U CN 201720950237U CN 207268978 U CN207268978 U CN 207268978U
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Abstract
A kind of AT power supplies tractive transformer low-voltage coil structure is the utility model is related to, there is the first low-voltage coil and the second low-voltage coil, the second low-voltage coil is sleeved on the outside of the first low-voltage coil, and the second low-voltage coil and the first low-voltage coil bottom are insulated equipped with bottom；First low-voltage coil inner ring is equipped with the first interior insulation cylinder and the first inner bracing strip, and the first outer stay, the second interior insulation cylinder and the second inner bracing strip are equipped between the second low-voltage coil and the first low-voltage coil；Second low-voltage coil is externally provided with the second outer stay.The utility model using two low-voltage coils system around structure, ensure the degree of packing between two low-voltage coils, improve the anti-short circuit capability of product, meet the operation characteristic of the frequent short circuit of tractive transformer, reduce the workload of each operation at the same time, reduce manufacture cost, enhance product performance, the cost of product is reduced, improves the benefit of enterprise.
Description
Technical field
A kind of tractive transformer manufacturing technology is the utility model is related to, is specially a kind of AT power supplies tractive transformer low-voltage line
Coil structures.
Background technology
Two independent single-phase traction transformers of tractive transformer generally use of AT power supplies form one in external cabling
Three-phase electric traction transformer group.The secondary side of each single-phase traction transformer respectively has two low-voltage coils：Low-voltage coil 1 and low-voltage line
Circle 2.At present, the low-voltage coil of the power supply mode is by the way of respectively coiling, individually pressurization, then by coil put in order by
A suit.Such a structure, it is impossible to ensure the degree of packing between two low-voltage coils, it is impossible to reliably meet that tractive transformer is frequent
The operation characteristic of short circuit, while in order to ensure the smooth suit of coil, the distance between two low-voltage coils need to be increased, provide set
Gap is filled, copper consumption is more, increases cost.
Utility model content
For AT in the prior art power supply tractive transformer low-voltage coil due to respectively coiling, it is impossible to ensure two low pressure
The degree of packing between coil, the deficiencies of can not meeting tractive transformer frequent short circuit operation, problem to be solved in the utility model
It is to provide the packaging clearance between a kind of degree of packing ensured between two low-voltage coils, cancellation low-voltage coil, meets traction
The AT power supply tractive transformer low-voltage coil structures of the frequent short circuit operation requirement of transformer.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of AT power supplies tractive transformer low-voltage coil structure of the utility model, has the first low-voltage coil and the second low pressure
Coil, the second low-voltage coil are sleeved on the outside of the first low-voltage coil, and the second low-voltage coil and the first low-voltage coil bottom are equipped with lower end
Insulate in portion；First low-voltage coil inner ring is equipped with the first interior insulation cylinder and the first inner bracing strip, the second low-voltage coil and the first low-voltage line
The first outer stay, the second interior insulation cylinder and the second inner bracing strip are equipped between circle；Second low-voltage coil is externally provided with the second outer stay.
The first lower end insulation and first of the first low-voltage coil is equipped between the first low-voltage coil and bottom insulation
The second lower end insulation of low-voltage coil, the first of the second low-voltage coil is equipped between the second low-voltage coil and bottom insulation
Lower end insulate and the second lower end of the second low-voltage coil insulate；First low-voltage coil top is insulated equipped with the first upper end,
Insulate equipped with the second upper end on the second low-voltage coil top.
First low-voltage coil for a continous way left side around to, the second low-voltage coil for it is spiral it is right around to.
First low-voltage coil and the second low-voltage coil are highly consistent.
The utility model has the advantages that and advantage：
1. the utility model using two low-voltage coils system around structure, ensure the degree of packing between two low-voltage coils,
The anti-short circuit capability of product is improved, meets the operation characteristic of the frequent short circuit of tractive transformer, meanwhile, reduce the work of each operation
Amount, reduces manufacture cost, enhances product performance, reduce the cost of product, improve the benefit of enterprise.
2. the utility model eliminates the packaging clearance between low-voltage coil, the distance between coil is reduced, reduces transformation
Device weight of copper wire and material consumption, save design cost.
Brief description of the drawings
Fig. 1 is the AT power supply tractive transformer low-voltage coil structure schematic diagrames of the utility model.
Wherein, 1 is the first low-voltage coil, and 2 be the second low-voltage coil, and 3 be the first interior insulation cylinder, and 4 be the first inner bracing strip, 5
For the first low-voltage coil the first lower end insulation, 6 be the first low-voltage coil the second lower end insulation, 7 for lower end insulate,
8 insulate for the first upper end, and 9 be the first outer stay, and 10 be the second interior insulation cylinder, and 11 be the second inner bracing strip, and 12 be the second low pressure
The first lower end insulation of coil, 13 insulate for the second lower end of the second low-voltage coil, and 14 insulate for the second upper end, and 15 are
Second outer stay.
Embodiment
The utility model is further elaborated with reference to Figure of description.
As shown in Figure 1, a kind of AT power supplies tractive transformer low-voltage coil structure of the utility model, has the first low-voltage coil
1 and second low-voltage coil 2, the second low-voltage coil 2 be sleeved on the outside of the first low-voltage coil 1, the second low-voltage coil 2 and the first low-voltage line
1 bottom is enclosed equipped with bottom insulation 7；First low-voltage coil, 1 inner ring is equipped with the first interior insulation cylinder 3 and the first inner bracing strip 4, and second is low
The first outer stay 9, the second interior insulation cylinder 10 and the second inner bracing strip 11 are equipped between 2 and first low-voltage coil 1 of crimping circle；Second
Low-voltage coil 2 is externally provided with the second outer stay 15.
7 the first lower ends insulation 5 and for being equipped with the first low-voltage coil between the first low-voltage coil 1 and bottom insulation
The second lower end insulation 6 of one low-voltage coil, the second low-voltage coil is equipped between the second low-voltage coil 2 and bottom insulation 7
The first lower end insulation 12 and second low-voltage coil the second lower end insulation 13；First low-voltage coil, 1 top is equipped with first
Upper end insulation 8,2 top of the second low-voltage coil are equipped with the second upper end insulation 14.
First low-voltage coil 1 for a continous way left side around to, the second low-voltage coil 2 for it is spiral it is right around to；First low-voltage coil 1
It is highly consistent with the second low-voltage coil 2.
The loop construction that the utility model uses, ensures the degree of packing between two low-voltage coils, enhances the anti-of product
Short-circuit capacity, it is cost-effective on the premise of performance is ensured, reduce work hours, meet that the operation of the frequent short circuit of tractive transformer is special
Point.
A kind of AT power supplies tractive transformer low-voltage coil coiling by the following method of the utility model：
Insulating part enters stove drying pretreatment；
The first low-voltage coil of coiling 1, carries out Constant pressure drying processing after the completion of coiling；
In 1 outer the second low-voltage coil of coiling 2 of the first low-voltage coil, Constant pressure drying processing is individually carried out after the completion of coiling；
Come out of the stove after the completion of the processing of second low-voltage coil, 2 Constant pressure drying, the first low-voltage coil 1 and the second low-voltage coil are outside stove
Pressurize together, make the highly consistent of two low-voltage coils.
In the present embodiment, before 1 coiling of the first low-voltage coil, insulating part need to be entered to stove drying process, including arranged on first
First interior insulation cylinder 3 of 1 inner ring of low-voltage coil, the first inner bracing strip 4, the first lower end insulation 5, first of the first low-voltage coil are low
Crimping circle the second lower end insulation 6, lower end insulation 7, arranged on the first low-voltage coil top the first upper end insulation 8, set
The first outer stay 9 in 1 outer ring of the first low-voltage coil, in the second interior insulation cylinder 10, second of 2 inner ring of the second low-voltage coil
Stay 11, the second low-voltage coil the first lower end insulate the 12, second low-voltage coil the second lower end insulation 13, arranged on second
The second upper end insulation 14 of 2 upper end of low-voltage coil and the second outer stay 15 arranged on 2 outer ring of the second low-voltage coil.Wherein
First interior insulation cylinder 3, the first inner bracing strip 4 need to glue in advance, 10 open-ended of the second interior insulation cylinder.
In coiling, first by the first interior insulation cylinder 3 and the first inner bracing strip 4 glue, dried finished product is sleeved on winding former,
Put the second lower end insulation 6 and lower end insulation 7 of the first lower end the 5, first low-voltage coil of insulation well, start using continuous
It is formula, left around to the first low-voltage coil of coiling；
First low-voltage coil 1 places the first upper end insulation 8 after complete, carries out Constant pressure drying processing, and height is adjusted to according with
It is upper vertical around machine winding former stretching after closing drawing requirement, the first outer stay 9 is placed, and wax is filled in 9 outside diameter of the first outer stay；
The the second interior insulation cylinder 10 for setting the second low-voltage coil 2 is enclosed, the second insulating cylinder 10 overlap joint is cemented with glue, ensures overlap joint
Position is on the first outer stay 9, then is bonded the second inner bracing strip 11, ensures that the second inner bracing strip 11 and the first outer stay 9 align；
Second inner bracing strip, 11 outside diameter is waxed, and places the insulation 12 of the first lower end and the second low-voltage coil of the second low-voltage coil
The second lower end insulation 13, it is right around to the second low-voltage coil of coiling 2 using spiral；
Helical winding is using sleeping around machine coiling, and for continuous winding using vertical around machine coiling, the utility model is in considering
Coil is continous way, using vertical around machine coiling
The second upper portion insulating 14 is placed, after the completion of 2 coiling of the second low-voltage coil, is first individually pressurizeed, after coming out of the stove, the
One low-voltage coil 1 and the second low-voltage coil 2 pressurize together outside stove, ensure the highly consistent of coil, finally place the second low pressure
Second outer stay 12 of coil.Every section is required in coiling to be close to, and ensure coil axial direction, radial consolidation.
The utility model, using uniting by the way of, passes through three by two around to the different low-voltage coil of different, coil form
Secondary pressurization ensures the degree of packing of low-voltage coil, improves the anti-short circuit capability of product, meets the operation of the frequent short circuit of tractive transformer
Feature, while reduce the workload of each operation, manufacture cost is reduced, enhances product performance, reduces the cost of product, is improved
The benefit of enterprise.
Claims (4)
- The tractive transformer low-voltage coil structure 1. a kind of AT powers, it is characterised in that：With the first low-voltage coil and the second low pressure Coil, the second low-voltage coil are sleeved on the outside of the first low-voltage coil, and the second low-voltage coil and the first low-voltage coil bottom are equipped with lower end Insulate in portion；First low-voltage coil inner ring is equipped with the first interior insulation cylinder and the first inner bracing strip, the second low-voltage coil and the first low-voltage line The first outer stay, the second interior insulation cylinder and the second inner bracing strip are equipped between circle；Second low-voltage coil is externally provided with the second outer stay.
- The tractive transformer low-voltage coil structure 2. AT according to claim 1 powers, it is characterised in that：In the first low-voltage line The insulation of the first lower end and the second lower end of the first low-voltage coil of the first low-voltage coil are equipped between circle and bottom insulation Insulation, is equipped with the insulation of the first lower end and the second low pressure of the second low-voltage coil between the second low-voltage coil and bottom insulation The second lower end insulation of coil；First low-voltage coil top is insulated equipped with the first upper end, and the second low-voltage coil top is equipped with Insulate the second upper end.
- The tractive transformer low-voltage coil structure 3. AT according to claim 1 powers, it is characterised in that：First low-voltage coil For a continous way left side around to, the second low-voltage coil for it is spiral it is right around to.
- The tractive transformer low-voltage coil structure 4. AT according to claim 1 powers, it is characterised in that：First low-voltage coil It is highly consistent with the second low-voltage coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950237.5U CN207268978U (en) | 2017-08-01 | 2017-08-01 | A kind of AT power supplies tractive transformer low-voltage coil structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720950237.5U CN207268978U (en) | 2017-08-01 | 2017-08-01 | A kind of AT power supplies tractive transformer low-voltage coil structure |
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| CN207268978U true CN207268978U (en) | 2018-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326426A (en) * | 2017-08-01 | 2019-02-12 | 特变电工沈阳变压器集团有限公司 | A kind of AT power supply tractive transformer low-voltage coil structure and winding method |
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2017
- 2017-08-01 CN CN201720950237.5U patent/CN207268978U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326426A (en) * | 2017-08-01 | 2019-02-12 | 特变电工沈阳变压器集团有限公司 | A kind of AT power supply tractive transformer low-voltage coil structure and winding method |
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