CN106847482A - One kind has transverse air channel high pressure molded coil transformer and its manufacture method - Google Patents
One kind has transverse air channel high pressure molded coil transformer and its manufacture method Download PDFInfo
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- CN106847482A CN106847482A CN201710180620.1A CN201710180620A CN106847482A CN 106847482 A CN106847482 A CN 106847482A CN 201710180620 A CN201710180620 A CN 201710180620A CN 106847482 A CN106847482 A CN 106847482A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/323—Insulation between winding turns, between winding layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
Abstract
There are transverse air channel high pressure molded coil transformer and its manufacture method the invention discloses one kind, transformer high-voltage coil is coiled into some sections, and every section of high-tension coil includes the transverse air channel set between electromagnetic wire and the glass cross panel and adjacent segment coil of layer insulation, epoxy resin and pre-soaked resin.The present invention is solved under identical design of transformer scheme, is not provided with longitudinal direction radiating air flue, and the radial thickness of coil is not increased, and the axial height of coil is not increased, reaches the purpose for increasing coil cooling surface area, is conducive to the radiating of high-tension coil.If design of transformer scheme is appropriately adjusted, the load loss distribution of high and low coil is adjusted in the Wen Sheng limit values of high and low coil license, section material, energy-saving effect are more notable.
Description
Technical field
The present invention relates to the manufacture of epoxy cast transformer, and in particular to one kind has transverse air channel high pressure molded coil transformation
Device and its manufacture method.
Background technology
Epoxy cast transformer manufacturing firm always wants to power transformer product and is meeting the zero load that respective country standard specifies
Under the premise of the basic demand of loss, load loss, impedance voltage, industrial frequency withstand voltage, shelf depreciation, noise and winding temperature rise, to the greatest extent
Amount accomplishes that small volume, consumptive material be few, lightweight, low cost.And epoxy cast transformer is main by the unshakable in one's determination and big parts group of coil two
Into.
The CN200710037948.4 name of patent application of deemed withdrawal is after such as applying：3-D triangle open mouth coiling iron core
Dry-type transformer, using detachable iron yoke three dimensional wound core, can accomplish that three-phase magnetic circuit length is symmetry equivalent, and most short, and consumptive material is most
Few, material cost is minimum.It is the three dimensional wound core that the upper yoke part of three dimensional wound core is made breakaway-element, is not only merged
Solid is remained silent, and Mo orientation of rewinding material flow direction and Gui Gang Pian is completely the same, and open circuit loss is low, noise is low, anti-short circuit capability
By force, mistakeExcitationThe strong advantage of ability, and the equipment for not needing the coiling on iron core of special coil again, existing production equipment
Production can be met, unshakable in one's determination, coil is separately fabricated, can mass production.And it is conveniently replaceable coil.Avoid epoxy cast dry change
Molded coil together with one piece of cast unshakable in one's determination, dipping is dry become dipping coil together with one piece of dipping unshakable in one's determination it is highly difficult, complicate, it is obstructed
Cumbersome technique.Meanwhile, no longer limited by winding apparatus when high-power transformer is produced.Can substitute comprehensively current each
The laminated core of the form of kind, the closed winding for continuously rolling is unshakable in one's determination.
And for example, the applicant appliesCN201610238388.8《A kind of epoxy casting of compound main airway insulation system
Transformer and its manufacture method》WithZL201620321996.0《A kind of epoxy casting transformation of compound main airway insulation system
Device》, using the coil of compound main airway insulation system, can accomplish that the master greatly reduced between high-tension coil and low-voltage coil is exhausted
Edge distance, so as to reduce the volume of whole dry-type transformer, reduces the material cost of coil and iron core.It is that main airway is insulated
Composite construction is manufactured into, in the epoxy resin enclosed layer of high-tension coil inner surface and low-voltage coil outer surface, one is respectively provided with
Individual high-strength insulating layer, meanwhile, an insulating cylinder is at least placed between high-tension coil and low-voltage coil.High-strength insulating layer,
Insulating cylinder and the epoxy resin containing glass fiber grid and the air between them, the compound main airway insulation system of composition.It is multiple
Close main airway insulation distance S and reduce more than 30% than conventional main insulating structure, reduce the volume of transformer, reduce transformer
Cost, while also reducing the open circuit loss of transformer.
In order to further reduce the volume of transformer, can also coil be coiled into end face plane type or repeatedly be coiled into cake formula structure
Continuous winding, without cushion block between cake.Generally, cylindrical layer winding axial height=every circle line width × (every layer of number of turn+1)+nargin,
I.e. axial height will occupy the position of 1 circle line width more, and 1 circle of wire turn the past is slowly into the position of the 2nd circle, neighbour of the tail end in head end
Nearly 1 circle position, coil end face is in plagiohedral, and gradient is 1 circle line width/coil diameter.When taking often around 1 circle, tail end is directed at head end,
" S " curved transposition is being done close at head end, into the 2nd circle, i.e., is entering next circle per circle line " S " curved transposition, now coil-end
Face is in plane, and the axial height of coil=per the circle line width × every layer of number of turn+nargin, in the formula of above-mentioned calculating axial height not
Occur+1, the positions for occupying 1 circle line width no longer more, the coil that our this " S " curved transpositions enter next circle is called end face plane
Type coil.
Architectural feature based on above-mentioned documents and end face plane type coil, can accomplish design of transformer and manufacture
Volume is minimum, consumptive material is minimum, weight most light, cost is minimum.But, once after winding volume minimum, its cooling surface area is also
It is minimum.When cooling surface area it is small to a certain extent after because coil load loss maintain primary standard it is constant, then coil surface is every
The load loss value that square metre area bears, i.e. thermic load W/m2Just increase therewith, cause the temperature rise of coil to exceed national standard
The limit value requirement of regulation.
How to ensure in the case where volume is reduced, it is ensured that temperature rise meets standard, here it is the application problem to be solved.
From invention transformer nearly two in the world over 100 years, what is invented first is dry-type transformer.Due to dry-type transformer
The limitation of insulation and radiating and cause voltage not increase, the problem that capacity does not increase, make the development of dry-type transformer once almost
Stagnation.After simply occurring in that the dry-type transformer of epoxy resins insulation, dry-type transformer this state is just changed.If solution
Determine the heat dissipation problem of dry-type transformer, the dry-type transformer of Large Copacity will be developed faster.
The high-tension coil of epoxy cast transformer, can produce loss, loss to become heat in operation, and heat passes through line again
The surface of circle is dispersed into air, the heat not distributed not go out for the moment, coil is produced temperature rise.And temperature rise finite value will
Ask, it must not exceed the insulation grade anti-corrosion temperature limit of insulating materials selected by coil.Otherwise, insulating materials is aging, insulation
Performance is destroyed, and causes whole transformer electric property to be destroyed, and transformer life will terminate.For that purpose it is necessary to ensure that coil surface is every
The load loss value that square metre area bears, i.e. thermic load W/m2A certain numerical value is must not exceed, the temperature of molded coil could be controlled
Rise the limit value requirement no more than national Specification.It is exactly to reduce the temperature rise of transformer to reduce thermic load.Such as to reduce thermic load
Value, one is the loss of coil is reduced, the second is the area of dissipation of increase coil surface.
Increasing the method for coil surface area of dissipation has several.One is the design for changing transformer, to same capacity
Transformer takes different core-diameter values, that is, take the different low-voltage coil numbers of turn, thus it is possible to vary the fat or thin shape of coil height, obtains
To different cooling surface areas.Generally, short and stout shape person's surface area is less than thin shape person high.Two are set inside molded coil
Longitudinal direction radiating air flue, to increase cooling surface area, but causes to increased the radial thickness of coil.Design according to transformer is advised
Rule, under identical transformer impedance numerical requirements, after increased radial thickness, the axial height of coil will also increase therewith,
The requirement of transformer impedance numerical value could be met.So, result in radial thickness and axial height is increased simultaneously, hence it is evident that increase and become
The manufacturing cost of depressor, reduces product profit.
The content of the invention
Present invention aim under identical design of transformer scheme, be not provided with longitudinal direction radiating air flue, do not increase
The radial thickness of coil, the axial height of coil is not increased, the purpose for increasing coil cooling surface area is reached, here it is in coil
Intersegmental setting heatsink transverse air flue, and solve its manufacture method.For the cast transformer for developing Large Copacity lays the foundation, it is also
The change of epoxy cast transformer structure revolution.
One of technical solution of the present invention：
One kind has transverse air channel high pressure molded coil transformer, and transformer high-voltage coil is coiled into some sections, every section of high-voltage line
Circle includes what is set between electromagnetic wire and the glass cross panel and adjacent segment coil of layer insulation, epoxy resin and pre-soaked resin
Transverse air channel.
Further, every section of coil of the electromagnetic wire and layer insulation is to turn to every circle line " S " to bend into next circle, often
The few end face plane type coil for accounting for a circle line width position of layer；
Or be repeatedly coiled between the continuous winding of cake formula structure, cake without cushion block.
Further, the glass cross panel of the pre-soaked resin is placed only in the Resin Wrappage of coil surfaces externally and internally.
Further, the transverse air channel is the intersegmental 10~14mm of distance between every section of high pressure molded coil, transverse air channel
The intersegmental coil resin-encapsulate thickness of both sides is respectively 1~2mm, and transverse air channel thickness is 8~10mm.
Further, when electromagnetic wire and layer insulation use end face plane type coil, the road number of the transverse air channel is line
Enclose total hop count and subtract one, when in electromagnetic wire and layer insulation using repeatedly the continuous winding of cake formula structure is coiled into, transverse air channel
Road number should be according to coil surface thermic load W/m2Size permissible level is must not exceed to determine, the permissible level is according to this Shen
Ask someone the ZL201010250963.9 for applying《A kind of temperature rise design method of resin-encapsulated transformer winding》Calculate.
Further, per pass transverse air channel has air flue at three, and air flue is distributed in the intersegmental of adjacent segment coil and justifies along coil at three
Position at E, F, the G tri- in ring direction, often locates a quarter that position is whole annulus and subtracts a pressure plate cushion block circular arc.
Further, air flue is respectively adopted the transverse air channel template consistent with shape at this at the three of the per pass transverse air channel
In resin-cast solidification postforming.
Further, the transverse air channel template is shaped as：Inner arc is the radial inner circle radius of coil, and external arc is cast
The radial exradius of body, thickness is to design the curve slope of chimney width and be made up of two blocks of steel plates that oblique line disconnects.
The two of technical solution of the present invention：
A kind of high-tension coil manufacture method for having a transverse air channel high pressure molded coil transformer,
After winding former is installed on coil winding machine, the glass of the pre-soaked resin of the whole height of coil is placed on winding former
Silk screen panel, is exactly the inner surface encapsulated layer of high pressure molded coil after vacuum pouring resin, then the line of tap is carried from centre
Duan Xianhang coilings, bend into next circle per circle line " S ", and it is every circle line width × actual number of turn, Bu Duozhan to be coiled into every layer of axial dimension
The end face plane type coil of one circle line width position, until around the number of plies and the number of turn of complete this section；If the continous way line of cake formula structure
Without cushion block between circle, according to a conventional method coiling, cake；
Transverse air channel template is placed, transverse air channel is placed in the position at radial E, F, the G tri- along coil annular direction of coil
Template, transverse air channel template thickness is the distance between section and section, and is fixed with glass tape and spacer block, is then proceeded under coiling
One section of coil, repeats above-mentioned coiling and places the process of transverse air channel template, until after complete coil, the cast demoulding,
Take out transverse air channel template and form air flue at three, the annulus cambered surface for often locating air flue is that a quarter of whole annulus subtracts a pressure
The cambered surface of board spacer.
Further, in the outer surface of the complete coil of coiling, the glass cross panel of pre-soaked resin is highly placed by each line segment,
Cast external mold is loaded onto, the whole coil of vacuum pouring is carried out；After solidification, inside and outside mould and transverse air channel template are sloughed, that is, be formed with horizontal stroke
To the high pressure molded coil of air flue.
The present invention is solved under identical design of transformer scheme, is not provided with longitudinal direction radiating air flue, does not increase coil
Radial thickness, the axial height of coil is not increased, reaches the purpose for increasing coil cooling surface area, is conducive to dissipating for high-tension coil
Heat.In other words, in identical temperature riseUnder limit value, bigger coil loss heating can be born, so as to electromagnetic wire section can be reduced
Product, saves the consumption of electromagnetic wire and epoxy resin.For the cast transformer for developing Large Copacity lays the foundation.
If design of transformer scheme is appropriately adjusted, high and low coil is adjusted in the temperature limit of high and low coil license
Load loss distribution, and Bian further reduces overall dimensions with compound main airway insulation system, and section material, energy-saving effect are more
For notable.
Brief description of the drawings
Fig. 1 is a kind of high pressure molded coil profile for having a transverse air channel high pressure molded coil transformer of the present invention；
Fig. 2 is a kind of transverse air channel position cross-sectional view for having a transverse air channel high pressure molded coil transformer of the present invention；
Fig. 3 is a kind of high-tension coil for having transverse air channel high pressure molded coil transformer of the present invention and tap schematic diagram；
Fig. 4 is a kind of transverse air channel Prototype drawing for having a transverse air channel high pressure molded coil transformer of the present invention；
Fig. 5 is that a kind of horizontality when having the high-tension coil coiling of transverse air channel high pressure molded coil transformer of the present invention is put
Put schematic diagram；
In figure：The glass cross panel 2 of electromagnetic wire and layer insulation 1, epoxy resin and pre-soaked resin, transverse air channel 3, pressure
Board spacer 4, wiring Board position 5, transverse air channel template 6.
Specific embodiment
The present invention can be so that the invention will be further described, however, the scope of the present invention is simultaneously by the following examples
It is not limited to following embodiments.
Embodiment 1：
A kind of high-tension coil manufacture method for having a transverse air channel high pressure molded coil transformer, during coiling, winding former
Have the placement (see Fig. 5) that is the level of state, on the mould of coiling, at the glass cross panel 2 of epoxy resin and pre-soaked resin,
The glass cross panel of the pre-soaked resin of the whole height of coil is placed, equivalent to the inner surface encapsulated layer position of coil.First therefrom
Between tap 1A to tap 3A, tap 5A coilings, until around the outside electric power network connector lug A of whole coil；Again from centre
Tap 2A is to tap 4A, tap 6A coilings, until around the tail head X of whole coil, being bent into next per circle line " S "
Circle, it is every circle line width × actual number of turn to be coiled into every layer of axial dimension, seldom accounts for the end face plane type coil of a circle line width position, or
Repeatedly it is coiled between the continuous winding of cake formula structure, cake without cushion block.
Transverse air channel template is placed, the section is placed in the position at radial E, F, the G tri- along coil annular direction of coil respectively
Design thickness circular arc transverse air channel template 6, and fixed with glass tape and spacer block temporarily, then proceed to next section of line of coiling
Circle, repeats above-mentioned coiling and places the process of transverse air channel template, until untill complete.Continuous winding is then according to the need of radiating
Transverse air channel number is set.
The glass cross panel of the pre-soaked resin of every section of height of coil is placed in the complete coil outer surface of coiling, vacuum is carried out and is poured
Note whole coil.After solidification, the demoulding, transverse air channel template 6 is taken out, form transverse air channel 3, pressure plate cushion block 4 and wiring Board position
5, that is, it is formed with the high pressure molded coil of transverse air channel.
Embodiment 2：
One three-phase of 10/0.4KV630KVA horizontal layouts is unshakable in one's determination, and it is F class B insulation temperature classification epoxy casting high pressures
Coil, temperature limit is 100K.Its physical dimension is：Core-diameter φ 221mm, centre-to-centre spacing 475mm unshakable in one's determination, window unshakable in one's determination is high
795mm, high-tension coil internal diameter is φ 372mm, and external diameter is φ 441mm, and radiating height is 685mm, the width of pressure plate cushion block 4 50mm, three
The loss of phase high-voltage load is 3893 watts, and coil eddy-current loss is 261 watts, and three-phase high voltage coil total losses are 4154 watts.
When this transformer high-voltage coil is coiled into six sections, the three-phase of horizontal layout is unshakable in one's determination, intersegmental apart from 10mm mm, without horizontal stroke
During to air flue, every coil axial direction cooling surface area is：S1=π (372+441) × 685 × 10-6=1.750m2；Thermic load J1=
4154/ (3 × 1.750)=791W/m2；Temperature rise calculated value is T1=96K.
When this transformer high-voltage coil is coiled into six sections, the three-phase of horizontal layout is unshakable in one's determination, if 5 transverse air channels, it is intersegmental away from
From 10mm mm, each 1mm of intersegmental coil both sides resin-encapsulate thickness, during transverse air channel 8mm, the radial cooling surface area of each coil
S ' is increased,
S '=[0.5 π (372+441) -4 × 50] × (220.5-186) × 0.75 × 5 × 2 × 10-6=0.279m2
Effective cooling surface area of every coil increases to S11=S1+αS′m2, α is the radial radiating system less than 1 in formula
Number, is determined by trial curve.Using temperature rise test curve controlled coil temperature rise, temperature rise calculated value is T11=85K.
As can be seen here, cooling surface area increased 0.279 × 3=0.837m2, it is 15.94% to increase ratio, so as to reduce
The temperature rise 11K of coil, reduced rate is 11.4%.
Embodiment 3：
Transformer described in embodiment 2 is still unshakable in one's determination for the three-phase of horizontal layout, design is appropriately adjusted, high and low
The load loss distribution of the high and low coil of adjustment in the temperature limit of coil license, and the compound main airway insulation systems of Bian, reduce
Main airway insulation size, section material effect becomes apparent from.
Physical dimension after adjustment is：Core-diameter is still φ 221mm, centre-to-centre spacing 470mm unshakable in one's determination, window 740mm high unshakable in one's determination,
Using compound main airway insulation system, high-tension coil internal diameter is φ 369mm, and coil outer diameter is φ 437mm, and radiating height is
630mm, six sections of high-tension coil, if 5 transverse air channels, intersegmental apart from 10mm mm, intersegmental coil both sides resin-encapsulate thickness is each
1mm, during transverse air channel 8mm, three-phase high-voltage load loss is close with embodiment 2, and every coil axial direction cooling surface area is：S2=
π(369+437)×630×10-6=1.595m2, the radial cooling surface area of each coil increased S ", S "=[0.5 π (369+
447)-4×50]×(218.5-184.5)×0.75×5×2×10-6=0.276m2, the effective cooling surface area of each coil is
S21=1.595+ α 0.276m2, α is the radial coefficient of heat transfer less than 1 in formula, is determined by trial curve.It is bent using temperature rise test
Line traffic control coil temperature rise, temperature rise calculated value is T21=96K ﹤ 100K.Low-voltage coil temperature rise calculated value is T22=95K ﹤ 100K.Knot
Really, after adjusted design scheme, silicon steel sheet consumption reduces 46Kg, accounts for 3.9%, and aluminium magnet wire consumption reduces 25Kg, accounts for 7.8%, tree
The consumption of fat compound reduces 2Kg, accounts for 2%, and product gross weight reduces 70Kg, accounts for 3.9%.It can be seen that, section material effect is more notable, and
Reduce 50 watts of open circuit loss.
Embodiment 4：
Transformer described in embodiment 3 is changed to triangular solid iron core, high and low pressure coil is used by the coil of embodiment 3
Compound main airway insulation system, 5 transverse air channels are intersegmental apart from 10mm mm, each 1mm of intersegmental coil both sides resin-encapsulate thickness,
During transverse air channel 8mm, silicon steel sheet consumption is further reduced, and open circuit loss is further reduced, and section material, energy-saving effect are particularly dashed forward
Go out.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. one kind has transverse air channel high pressure molded coil transformer, it is characterised in that transformer high-voltage coil is coiled into some sections, often
Section high-tension coil includes electromagnetic wire and layer insulation（1）, epoxy resin and pre-soaked resin glass cross panel（2）And adjacent segment
The transverse air channel set between coil（3）.
2. one kind according to claim 1 has transverse air channel high pressure molded coil transformer, it is characterised in that the electromagnetism
Line and layer insulation（1）Every section of coil be to turn to every circle line " S " and bend into seldom to account for a circle line width position into next circle, every layer
End face plane type coil；
Or be repeatedly coiled between the continuous winding of cake formula structure, cake without cushion block.
3. one kind according to claim 1 has transverse air channel high pressure molded coil transformer, it is characterised in that the preimpregnation
The glass cross panel of resin（2）It is placed only in the Resin Wrappage of coil surfaces externally and internally.
4. one kind according to claim 1 has transverse air channel high pressure molded coil transformer, it is characterised in that the transverse direction
Air flue（3）Intersegmental 10~14mm of distance between i.e. every section high pressure molded coil, the intersegmental coil resin bag of transverse air channel both sides
Envelope thickness is respectively 1~2mm, and transverse air channel thickness is 8~10mm.
5. one kind according to claim 1 has transverse air channel high pressure molded coil transformer, it is characterised in that work as electromagnetic wire
And layer insulation（1）During using end face plane type coil, the road number of the transverse air channel 3 subtracts one for the total hop count of coil, works as electromagnetism
Line and layer insulation（1）When middle use is repeatedly coiled into the continuous winding of cake formula structure, transverse air channel（3）Road number should be according to coil
Surface thermal load W/m2Size permissible level is must not exceed to determine.
6. one kind according to claim 1 has transverse air channel high pressure molded coil transformer, it is characterised in that
Per pass transverse air channel（3）There is air flue at three, air flue is distributed in the intersegmental along coil annular direction of adjacent segment coil at three
Position at E, F, G tri-, often locates a quarter that position is whole annulus and subtracts a circular arc for pressure plate cushion block.
7. the one kind according to claim 1 or 6 has transverse air channel high pressure molded coil transformer, it is characterised in that described
Per pass transverse air channel（3）Three at air flue be respectively adopted the transverse air channel template consistent with shape at this resin-cast solidification after
Shaping.
8. one kind according to claim 7 has transverse air channel high pressure molded coil transformer, it is characterised in that the transverse direction
Air flue template is shaped as：Inner arc is the radial inner circle radius of coil, and external arc is the radial exradius of pour mass, and thickness is to set
Count the curve slope of chimney width and be made up of two blocks of steel plates that oblique line disconnects.
9. a kind of high-tension coil manufacture method for having a transverse air channel high pressure molded coil transformer, it is characterised in that
After winding former is installed on coil winding machine, the glass cross of the pre-soaked resin of the whole height of coil is placed on winding former
Panel, is exactly the inner surface encapsulated layer of high pressure molded coil after vacuum pouring resin, then the line segment elder generation of tap is carried from centre
Row coiling, bends into next circle per circle line " S ", and it is every circle line width × actual number of turn to be coiled into every layer of axial dimension, seldom accounts for a circle
The end face plane type coil of line width position, until around the number of plies and the number of turn of complete this section；If the continuous winding of cake formula structure, presses
Without cushion block between conventional method coiling, cake；
Transverse air channel template is placed, transverse air channel mould is placed in the position at radial E, F, the G tri- along coil annular direction of coil
Plate, transverse air channel template thickness is the distance between section and section, and is fixed with glass tape and spacer block, then proceedes to coiling next
Section coil, repeats above-mentioned coiling and places the process of transverse air channel template, until after complete coil, the cast demoulding, taking
Go out transverse air channel template and form air flue at three, the annulus cambered surface for often locating air flue is that a quarter of whole annulus subtracts a pressing plate
The cambered surface of cushion block.
10. a kind of high-tension coil manufacture method for having a transverse air channel high pressure molded coil transformer according to claim 9,
Characterized in that, in the outer surface of the complete coil of coiling, the glass cross panel of pre-soaked resin is highly placed by each line segment, load onto
Cast external mold, carries out the whole coil of vacuum pouring；After solidification, inside and outside mould and transverse air channel template are sloughed, that is, be formed with horizontal gas
The high pressure molded coil in road.
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| CN201710180620.1A CN106847482A (en) | 2017-03-23 | 2017-03-23 | One kind has transverse air channel high pressure molded coil transformer and its manufacture method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710180620.1A CN106847482A (en) | 2017-03-23 | 2017-03-23 | One kind has transverse air channel high pressure molded coil transformer and its manufacture method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109065350A (en) * | 2018-10-16 | 2018-12-21 | 江西特种变压器厂 | A kind of device that transformer core laminar stands up and fell and its application method |
| CN109103016A (en) * | 2018-10-16 | 2018-12-28 | 江西特种变压器厂 | A kind of drawer type coiling and rotation solidify the device being integrated |
| CN114530323A (en) * | 2022-03-03 | 2022-05-24 | 江苏华辰变压器股份有限公司 | Coil winding process of 35 kV-level and below epoxy-cast dry-type transformer |
| CN114843089A (en) * | 2022-04-26 | 2022-08-02 | 悉瑞绿色电气(苏州)有限公司 | Method for designing internal insulation of pouring type dry-type transformer winding |
| CN117612835A (en) * | 2024-01-23 | 2024-02-27 | 悉瑞绿色电气(苏州)有限公司 | High-voltage winding for dry-type transformer and dry-type transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109065350A (en) * | 2018-10-16 | 2018-12-21 | 江西特种变压器厂 | A kind of device that transformer core laminar stands up and fell and its application method |
| CN109103016A (en) * | 2018-10-16 | 2018-12-28 | 江西特种变压器厂 | A kind of drawer type coiling and rotation solidify the device being integrated |
| CN109065350B (en) * | 2018-10-16 | 2023-06-02 | 江西赣电电气有限公司 | Device for standing up and laying down iron core lamination of transformer and use method thereof |
| CN114530323A (en) * | 2022-03-03 | 2022-05-24 | 江苏华辰变压器股份有限公司 | Coil winding process of 35 kV-level and below epoxy-cast dry-type transformer |
| CN114530323B (en) * | 2022-03-03 | 2023-08-08 | 江苏华辰变压器股份有限公司 | Winding process of epoxy casting dry-type transformer coil with voltage of 35kV level and below |
| CN114843089A (en) * | 2022-04-26 | 2022-08-02 | 悉瑞绿色电气(苏州)有限公司 | Method for designing internal insulation of pouring type dry-type transformer winding |
| CN114843089B (en) * | 2022-04-26 | 2023-10-13 | 悉瑞绿色电气(苏州)有限公司 | Method for designing insulation in casting dry type transformer winding |
| CN117612835A (en) * | 2024-01-23 | 2024-02-27 | 悉瑞绿色电气(苏州)有限公司 | High-voltage winding for dry-type transformer and dry-type transformer |
| CN117612835B (en) * | 2024-01-23 | 2024-04-05 | 悉瑞绿色电气(苏州)有限公司 | High-voltage winding for dry-type transformer and dry-type transformer |
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