CN209418254U - A kind of dry-type transformer - Google Patents
A kind of dry-type transformer Download PDFInfo
- Publication number
- CN209418254U CN209418254U CN201920273254.9U CN201920273254U CN209418254U CN 209418254 U CN209418254 U CN 209418254U CN 201920273254 U CN201920273254 U CN 201920273254U CN 209418254 U CN209418254 U CN 209418254U
- Authority
- CN
- China
- Prior art keywords
- clamping piece
- cushion block
- pulling plate
- tension coil
- dry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004804 winding Methods 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000035807 sensation Effects 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims description 17
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Abstract
The utility model discloses a kind of dry-type transformers, including pedestal, two groups of blowers and transformer body.Transformer body includes folder device, three-phase three-limb iron core and three-phase coil.Folder device includes preceding upper clamping piece, rear upper clamping piece, preceding lower clamping piece, rear lower clamping piece and six roots of sensation pulling plate；The upper and lower end of three pulling plates is each by pulling plate pin connection on preceding upper clamping piece and preceding lower clamping piece；The upper and lower end of other three pulling plates is each by pulling plate pin connection on rear upper clamping piece and rear lower clamping piece.The upper and lower side of every phase coil is equipped with cushion block；A wind guide tank is opened up on the upper surface of cushion block body, the upper and lower end caps of the seal of the high-tension coil of every phase coil respectively open up the ventilation hole of the intermediate axial air flue stick coaxial communication of the circle in a circle and high-tension coil winding, and upper and lower end caps respectively correspond outlet panel box and coaxially open up two ventilation openings.The dry-type transformer of the utility model can be effectively reduced internal heat, and then improve the performance of transformer, and convenient for assembly.
Description
Technical field
The utility model relates to a kind of dry-type transformers.
Background technique
Dry-type transformer is widely used in local lighting, skyscraper, airport, the places such as harbour CNC mechanical equipment, simply
Say the transformer that dry-type transformer just refers to that iron core and winding are not immersed in insulating oil.The type of cooling is generally divided into natural air
Cooling and forced air is cooling.When natural air cooling, transformer can under rated capacity long-term continuous operation.When forced air cooling, become
Depressor output capacity can be improved 50%, therefore be equipped with side blown type blower on the front and rear part of the pedestal of general dry type transformation, side-blown
Formula blower is dried to the center position of transformer respectively.Blower, the folder that dry-type transformer generally includes pedestal, is mounted on the base
Part device, the iron core being located in folder device and the three-phase coil winding being set in three iron core columns, folder device include
Preceding upper clamping piece, rear upper clamping piece, preceding lower clamping piece, rear lower clamping piece and six roots of sensation pulling plate.There is also following defects for existing dry-type transformer:
1) due to being respectively equipped with several cushion blocks between the upper and lower side and folder of the three-phase coil of transformer, these are traditional
Cushion block is generally the resin mass of a strip, thus by the cold wind of blower blowout to being blocked, makes heat in transformation not
It can discharge, also into the cold wind of not blower blowout；
2) high-tension coil be made of the sectional wind of the axial alignment of several tubulars and pass through casting epoxy resin formed it is close
Feng Ti.Since the high-tension coil winding of transformer is made of stranded conductor coiling, volume is larger, the vortex generated at work
Greatly, the heat of generation is big, energy consumption is also big, and the seal being consequently formed is generally thicker, has both been unfavorable for instant when coil windings work
Heat distributes, and is easy to produce temperature rise of hot spot phenomenon, influences the insulation performance of medium, to influence the quality of transformer coil
Stability and normal working life；
3) folder generallys use channel steel production, and supporting plate is welded in inside, and pulling plate is made of band steel, and stiffening plate is welded at both ends,
Welding one section of round steel through the two becomes pin, and folder is coupled by the pin being welded on pulling plate with pulling plate when assembly.This knot
When covering low-voltage coil, coil is easy to encounter pin structure, keeps low-voltage coil suit inconvenient.Additionally, due to the folder of this structure
Intensity is inadequate, therefore to be also intended to two pieces of stiffening plates of welding on the upper edge of forward and backward folder and lower edge, and connect between stiffening plate
Two longitudinal ties, manufacturing procedure will also be increased by not only increasing components, and the shape of transformer is also unsightly.
Utility model content
A kind of dry-type transformer is provided the purpose of the utility model is to overcome the defect of the prior art, it can effectively be dropped
The heat of low inside, and then the performance of transformer is improved, and convenient for assembly.
Purpose of the utility model is realized as follows: a kind of dry-type transformer, including pedestal, two groups be respectively mounted on bottom
The blower of seat front and rear part and the transformer body for being mounted on the middle of the base；The transformer body includes folder device, is located in
Three-phase three-limb iron core in folder device and the three-phase coil being set in three iron core columns；The folder device include before on
Folder, rear upper clamping piece, preceding lower clamping piece, rear lower clamping piece and six roots of sensation pulling plate；The upper end of every phase coil and preceding upper clamping piece and rear upper clamping piece
Between be equipped with cushion block；Cushion block is also equipped between the lower end of every phase coil and preceding lower clamping piece and rear lower clamping piece；Every phase coil is equal
Including low-voltage coil and the high-tension coil for being located at low-voltage coil periphery；The high-tension coil includes high-tension coil winding and by high pressure
Coil windings are encapsulated in seal therein；Wherein,
The preceding upper clamping piece, rear upper clamping piece, preceding lower clamping piece and rear lower clamping piece are all made of square tube production；Preceding upper clamping piece, it is rear on
The center line that three and three iron core columns are respectively opened up on the medial surface of folder, preceding lower clamping piece and rear lower clamping piece limits correspondingly
Position hole；
The upper and lower end of six roots of sensation pulling plate respectively opens up a location hole；The upper and lower end of three pulling plates is drawn each by one
Plate pin connection corresponds on preceding upper clamping piece and preceding lower clamping piece and with the center line of three iron core columns；Other three pulling plates
Upper and lower end also each by a pulling plate pin connection on rear upper clamping piece and rear lower clamping piece and with the center line of three iron core columns one by one
It is corresponding；
The pulling plate pin has the plunger of large diameter cylinder type and the small-diameter circular of the coaxially connected one end in plunger of one
Cylindrical shank is simultaneously process by a round steel, and the height of shank is greater than the height of plunger；
The plunger of each pulling plate pin it is embedded in the positioning hole of pulling plate, the preceding upper folder that the shank of each pulling plate pin is embedded in
In limit hole on part, rear upper clamping piece, preceding lower clamping piece and rear lower clamping piece；
The cushion block is formed by poured with epoxy resin and including cushion block body, and arc is equipped on the upper surface of cushion block body
Boss opens up the card slot of an interior insulation cylinder for fixing high-tension coil in the centre of the upper surface of boss, divides boss
It is cut into interior isolation platform and outer isolation platform；On the upper surface of the cushion block body and one is opened up in the inner end of the interior isolation platform to lead
Wind groove, the floor projection of the wind guide tank is in opening towards the U-shaped of the front side of cushion block body, and the internal groove side wall of the wind guide tank is from cushion block sheet
The leading flank of body extends along the inner end of the interior isolation platform towards the trailing flank of cushion block body, until the rear end of internal groove side wall reaches pad
Then the 2/3 of the thickness of block body connects arc-shaped slot bottom, the external groove sidevall of the other end connection wind guide tank of the slot bottom, this is outer
The front end of cell wall extends on the leading flank of cushion block body and the intersecting lens of inner face；
The high-tension coil winding of the high-tension coil is by thin copper belt as conductor, by several long cylinders of piecewise successively coiling
The sectional wind of shape is contacted mutually composition, and several sectional winds are coaxially arranged, and are respectively provided with section between adjacent sectional wind
Between insulate, be respectively provided in the middle part of several sectional winds axially through and intermediate axial air flue stick along long circumferential arrangement；
The seal include positioned at high-tension coil winding inner end inner cylinder, positioned at high-tension coil winding outer end shell,
Lower cover positioned at the upper end cover of high-tension coil winding upper end and positioned at high-tension coil winding lower end；
The prominent outlet panel box of one longitudinal end of the shell；
The upper end cover and lower cover respectively open up the intermediate axial air flue of the circle in a circle and the high-tension coil winding
The ventilation hole of stick coaxial communication, and the upper end cover and lower cover respectively correspond the outlet panel box and coaxially open up two
Ventilation opening.
Above-mentioned dry-type transformer, wherein the height of the big cylindrical body of the pulling plate pin is adapted to the thickness of the pulling plate.
Above-mentioned dry-type transformer, wherein the front/rear end of the inside and outside isolation platform is arc surface, radius 2mm；
The radius of the slot bottom of the wind guide tank is 8mm.
Above-mentioned dry-type transformer, wherein the rear portion of the inner face of the cushion block body is the inclined-plane being inclined outwardly.
Above-mentioned dry-type transformer, wherein the seal is formed by poured with epoxy resin.
Above-mentioned dry-type transformer, wherein the panel of the outlet panel box is equipped with an input terminal, an outlet
Terminal and six tap terminals.
The dry-type transformer of the utility model and the transformer box wall of the prior art have the following characteristics that
1) it is provided with wind guide tank in cushion block body, the heat in transformer be discharged can via wind guide tank, while also will
The wind energy of blower blowout imports inside transformer, can guarantee the working environment of transformer in this way, and then improve the peace of transformer
Overall coefficient；Due to being provided with the boss of isolation high-tension coil and low-voltage coil in the upper surface of cushion block body, while on boss
Offer the card slot for fixing insulating drum；Therefore the short circuit between high-tension coil and low-voltage coil can be effectively prevented, into
One step improves the safety of dry-type transformer.
2) axial air flue stick among being arranged in the coil windings of high-tension coil, and in the upper end cover and lower cover of seal
The upper ventilation hole opened up respectively with intermediate axial air flue stick coaxial communication, the outlet panel box for also corresponding to seal also open up ventilation
Mouthful, it can increase the heat dissipation channel of obturator, under the action of thermal convection, the heat that coil windings generate rises from the logical of upper end cover
Air holes and ventilation opening discharge, cold air enter air flue from the ventilation hole of lower cover, enter coil windings from the ventilation opening of lower cover
Periphery significantly reduces the temperature rise of high-tension coil so that the heat in coil windings be taken away；
3) folder is made using square tube, so that the intensity of folder greatly increases, not only can remove reinforcing armature, saves material
Material, moreover it is possible to keep the appearance of transformer more succinct；
4) by improving the connection structure of pulling plate and folder, i.e., pulling plate pin is not welded with pulling plate, but in low-voltage coil
After packing into iron core column, by the plunger of pulling plate pin in the location hole of pulling plate, the limit hole of folder is covered into the shank in pulling plate pin
On, this structure changes the defect of the pulling plate structure suit coil inconvenience of traditional dry-type transformer, can facilitate suit
Coil, and the structure without changing transformer save cost.
Detailed description of the invention
Fig. 1 is the main view of the dry-type transformer of the utility model；
Fig. 2 is the side view of the dry-type transformer of the utility model；
Fig. 3 is the top view of the dry-type transformer of the utility model；
Fig. 4 is the structural schematic diagram of the folder device of the dry-type transformer of the utility model；
Fig. 5 is the A-A direction view in Fig. 4；
Fig. 6 is the structural schematic diagram of the pulling plate pin of the dry-type transformer of the utility model；
Fig. 7 is the main view of the cross-over block of the dry-type transformer of the utility model；
Fig. 8 is the top view of the cross-over block of the dry-type transformer of the utility model；
Fig. 9 is the rearview of the cross-over block of the dry-type transformer of the utility model；
Figure 10 is the right side view of Fig. 9；
Figure 11 is the main view of the high-tension coil of the dry-type transformer of the utility model；
Figure 12 is the longitudinal sectional drawing of the high-tension coil of the dry-type transformer of the utility model；
Figure 13 is the top view of the high-tension coil of the dry-type transformer of the utility model.
Specific embodiment
Below in conjunction with attached drawing, the utility model is described in further detail.
Please refer to Fig. 1 to Figure 13, a kind of dry-type transformer of the utility model, including 1, two group of pedestal be respectively mounted on bottom
The blower 2 of seat front and rear part and the transformer body for being mounted on 1 middle part of pedestal.
Transformer body includes folder device, the three-phase three-limb iron core 4 being located in folder device and is set in three
Three-phase coil winding 5 in iron core column 40；Wherein,
Folder device includes preceding upper clamping piece 31, rear upper clamping piece 32, preceding lower clamping piece 31 ', rear lower clamping piece 32 ', six roots of sensation pulling plate 33
With four pairs of pull rods 35；Wherein,
Preceding upper clamping piece 31, rear upper clamping piece 32, preceding lower clamping piece 31 ' and rear lower clamping piece 32 ' are all made of square tube production；Preceding upper clamping piece
31, three and three iron core columns 40 are respectively opened up on the medial surface of rear upper clamping piece 32, preceding lower clamping piece 31 ' and rear lower clamping piece 32 '
The one-to-one limit hole 30 of center line；
The upper and lower end of six roots of sensation pulling plate 33 respectively opens up a location hole；
Before the upper and lower end of three pulling plates 33 is connected to each by a pulling plate pin 34 on upper clamping piece 31 and preceding lower clamping piece 31 '
And it is corresponded with the center line of three iron core columns 40；The upper and lower end of other three pulling plates 33 is also each by a pulling plate pin 34
It is connected on rear upper clamping piece 32 and rear lower clamping piece 32 ' and is corresponded with the center line of three iron core columns 40；
Plunger 341 of the pulling plate pin 34 with large diameter cylinder type is small straight with the coaxially connected one end in plunger 341 of one
The shank 342 of diameter cylinder is simultaneously process by a round steel, and the height of shank 142 is greater than the height of plunger 341；Plunger
341 height is adapted to the thickness of pulling plate 33；The height of shank 342 is at least twice of wall thickness of square tube；
The plunger 341 of each pulling plate pin 34 is embedded in the location hole 30 on pulling plate 33, the shank 342 of each pulling plate pin 34
Be embedded in preceding upper clamping piece 31, rear upper clamping piece 32, preceding lower clamping piece 31 ', in the limit hole on rear lower clamping piece 32 '；
Four pairs of pull rods 35 be connected to both sides between preceding upper clamping piece 31 and rear upper clamping piece 32 and preceding lower clamping piece 31 ' and
Both sides between lower clamping piece 32 ' afterwards.
Every phase coil 5 includes low-voltage coil 51 and the high-tension coil 52 for being located at low-voltage coil periphery；Every phase coil 5 it is upper
Cushion block 6 is equipped between end and preceding upper clamping piece 31 and rear upper clamping piece 32；Under the lower end of every phase coil 5 is with preceding lower clamping piece 31 ' and afterwards
Also cushion block 6 is equipped between folder 32 '；
Cushion block 6 is formed by poured with epoxy resin and including cushion block body 60；The rear portion of the inner face of cushion block body 60 be to
The inclined-plane of outer incline；It is equipped with arc boss 61 on the upper surface of cushion block body 60, is opened up in the centre of the upper surface of boss 61
The card slot 610 of one interior insulation cylinder for fixing high-tension coil, makes boss be divided into interior isolation platform 611 and outer isolation platform
612；The front/rear end of interior isolation platform 611 and outer isolation platform 612 is arc surface, radius 2mm；
The inner end that platform 611 is simultaneously isolated on the upper surface of cushion block body 60 inside opens up a wind guide tank 62, the wind guide tank 62
Floor projection in opening towards the U-shaped of the front side of cushion block body 60, the internal groove side wall 621 of the wind guide tank 62 is from cushion block body 60
Leading flank extends along the inner end of interior isolation platform 611 towards the trailing flank of cushion block body 60, until the rear end of internal groove side wall 621 reaches pad
Then the 2/3 of the thickness of block body 60 connects the arc-shaped slot bottom 622 that radius is 8mm, the other end connection of the slot bottom 622
The external groove sidevall 6213 of wind guide tank 62, the front end of the external groove sidevall 623 extend to the intersection of the leading flank and inner face of cushion block body 60
On line.
Due to being provided with wind guide tank 62 in cushion block body 60, enable heat in transformer via being located at transformer upper end
Cushion block 6 wind guide tank discharge, while also by blower blow out air quantity can be via the wind guide tank for the cushion block 6 for being located at transformer lower end
It imports in the air flue of the inside of transformer, can guarantee the working environment of transformer in this way, and then improve the safety system of transformer
Number；Due to being provided with the boss 61 of isolation high-tension coil 52 and low-voltage coil 51 in the upper surface of cushion block body 60, while convex
The card slot 610 for fixing insulating drum is offered on platform 61；Therefore high-tension coil 52 and low-voltage coil 51 can be effectively prevented
Between short circuit, therefore further improve the safety of dry-type transformer.
High-tension coil 52 includes coil windings and coil windings is encapsulated in seal therein.
Coil windings are gone here and there mutually by thin copper belt as conductor, by the sectional wind of four oval tubulars of piecewise successively coiling
Even constitute；Four sectional winds 521~524 are coaxially arranged, and section insulation 525 is equipped between adjacent sectional wind, and four
The middle part of a sectional wind 521~524 be respectively provided with axially through and intermediate axial air flue stick 520 along long circumferential arrangement, often
The section of axial air flue stick is in rectangle among root, and long × wide size is 8mm × 25mm；
Seal formed by poured with epoxy resin and including be located at coil windings inner end inner cylinder 531, be located at high-tension coil
The shell 532 of winding outer end, the upper end cover 533 positioned at coil windings upper end and the lower cover 534 positioned at coil windings lower end；
The prominent outlet panel box 535 of one longitudinal end of shell 532, the panel of the outlet panel box 535 are equipped with one
541, outlet terminals 542 of a input terminal and six tap terminals 543；
It is same that upper end cover 533 and lower cover 534 respectively open up the intermediate axial air flue stick 520 of the circle in a circle and coil windings
The ventilation hole 536 of axis connection, and upper end cover 533 and lower cover 534 respectively correspond outlet panel box 535 and coaxially open up two
Ventilation opening 537.
High-tension coil is in production, first successively four sectional winds 521~524 of coiling on winding former, until four points
Section winding 521~524 around to the inside wire turn of intermediate axial air flue stick 520 when, the intermediate axial air flue stick 520 of one circle of arrangement,
Again successively among four sectional winds of coiling 521~524 axial 520 outside of air flue stick wire turn, until around to outermost line
Circle.The upper and lower end of intermediate axial direction air flue stick 520 should all expose outside winding former, so as in casting epoxy resin seal, upper
Ventilation hole is formed on end cap 533 and lower cover 534, then air flue stick 520 is extracted.
Due to axial air flue stick among being arranged in high-tension coil winding, and divide on the upper end cover and lower cover of seal
The ventilation hole with intermediate axial air flue stick coaxial communication is not opened up, the outlet panel box for also corresponding to seal also opens up ventilation opening,
Under the action of thermal convection, coil windings generate heat rise from the ventilation hole and ventilation opening of upper end cover be discharged, cold air from
The ventilation hole of lower cover enters air flue, enters coil windings periphery from the ventilation opening of lower cover, thus by the heat in coil windings
Amount is taken away, and the temperature rise of high-tension coil is significantly reduced.
Above embodiments are only for illustration of the utility model, rather than limitations of the present invention, related technical field
Technical staff can also make various transformation or modification in the case where not departing from the spirit and scope of the utility model, because
This all equivalent technical solution also should belong to the scope of the utility model, should be limited by each claim.
Claims (6)
1. a kind of dry-type transformer is respectively mounted on the blower of pedestal front and rear part including pedestal, two groups and is mounted on the middle of the base
Transformer body；The transformer body includes folder device, the three-phase three-limb iron core being located in folder device and set
The three-phase coil being located in three iron core columns；The folder device includes preceding upper clamping piece, rear upper clamping piece, preceding lower clamping piece, rear lower folder
Part and six roots of sensation pulling plate；Cushion block is equipped between the upper end of every phase coil and preceding upper clamping piece and rear upper clamping piece；The lower end of every phase coil
Cushion block is also equipped between preceding lower clamping piece and rear lower clamping piece；Every phase coil include low-voltage coil and be located at low-voltage coil periphery
High-tension coil；The high-tension coil includes high-tension coil winding and high-tension coil winding is encapsulated in seal therein；Its
It is characterized in that,
The preceding upper clamping piece, rear upper clamping piece, preceding lower clamping piece and rear lower clamping piece are all made of square tube production；Preceding upper clamping piece, rear upper clamping piece,
The one-to-one limit hole of center line of three with three iron core columns are respectively opened up on the medial surface of preceding lower clamping piece and rear lower clamping piece；
The upper and lower end of six roots of sensation pulling plate respectively opens up a location hole；The upper and lower end of three pulling plates is each by a pulling plate pin
It is connected on preceding upper clamping piece and preceding lower clamping piece and is corresponded with the center line of three iron core columns；Other three pulling plates it is upper and lower
End is also corresponded each by a pulling plate pin connection on rear upper clamping piece and rear lower clamping piece and with the center line of three iron core columns；
The pulling plate pin has the plunger of large diameter cylinder type and the small-diameter circular cylindricality of the coaxially connected one end in plunger of one
Shank and be process by a round steel, and the height of shank be greater than plunger height；
It is embedded in the plunger of each pulling plate pin the positioning hole of pulling plate, preceding upper clamping piece that the shank of each pulling plate pin is embedded in,
Afterwards in the limit hole on upper clamping piece, preceding lower clamping piece and rear lower clamping piece；
The cushion block is formed by poured with epoxy resin and including cushion block body, and it is convex that arc is equipped on the upper surface of cushion block body
Platform opens up the card slot of an interior insulation cylinder for fixing high-tension coil in the centre of the upper surface of boss, is divided boss
At interior isolation platform and outer isolation platform；A wind-guiding is opened up on the upper surface of the cushion block body and in the inner end of the interior isolation platform
Slot, the floor projection of the wind guide tank is in opening towards the U-shaped of the front side of cushion block body, and the internal groove side wall of the wind guide tank is from cushion block body
Leading flank along it is described it is interior isolation platform inner end towards cushion block body trailing flank extend, until internal groove side wall rear end reach cushion block
Then the 2/3 of the thickness of ontology connects arc-shaped slot bottom, the external groove sidevall of the other end connection wind guide tank of the slot bottom, the outer groove
The front end of wall extends on the leading flank of cushion block body and the intersecting lens of inner face；
The high-tension coil winding of the high-tension coil is by thin copper belt as conductor, by the several oval tubulars of piecewise successively coiling
Sectional wind is contacted mutually composition, and several sectional winds are coaxially arranged, and is respectively provided between section between adjacent sectional wind absolutely
Edge, be respectively provided in the middle part of several sectional winds axially through and intermediate axial air flue stick along long circumferential arrangement；
The seal includes the inner cylinder positioned at high-tension coil winding inner end, the shell positioned at high-tension coil winding outer end, is located at
The upper end cover of high-tension coil winding upper end and lower cover positioned at high-tension coil winding lower end；
The prominent outlet panel box of one longitudinal end of the shell；
It is same that the upper end cover and lower cover respectively open up the intermediate axial air flue stick of the circle in a circle and the high-tension coil winding
The ventilation hole of axis connection, and the upper end cover and lower cover respectively correspond the outlet panel box and coaxially open up two ventilations
Mouthful.
2. dry-type transformer according to claim 1, which is characterized in that the height of the big cylindrical body of the pulling plate pin and institute
State the thickness adaptation of pulling plate.
3. dry-type transformer according to claim 1, which is characterized in that it is described it is inside and outside isolation platform front/rear end be
Arc surface, radius 2mm；The radius of the slot bottom of the wind guide tank is 8mm.
4. dry-type transformer according to claim 1, which is characterized in that the rear portion of the inner face of the cushion block body be to
The inclined-plane of outer incline.
5. dry-type transformer according to claim 1, which is characterized in that the seal is formed by poured with epoxy resin.
6. dry-type transformer according to claim 1, which is characterized in that the panel of the outlet panel box is equipped with one
Input terminal, an outlet terminal and six tap terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920273254.9U CN209418254U (en) | 2019-03-04 | 2019-03-04 | A kind of dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920273254.9U CN209418254U (en) | 2019-03-04 | 2019-03-04 | A kind of dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209418254U true CN209418254U (en) | 2019-09-20 |
Family
ID=67945640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920273254.9U Expired - Fee Related CN209418254U (en) | 2019-03-04 | 2019-03-04 | A kind of dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209418254U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786072A (en) * | 2019-03-04 | 2019-05-21 | 宣城沈变变压器有限公司 | A kind of dry-type transformer |
| CN112885564A (en) * | 2021-01-12 | 2021-06-01 | 江苏瑞恩电气股份有限公司 | High-safety resin-making steam-injection insulation transformer |
-
2019
- 2019-03-04 CN CN201920273254.9U patent/CN209418254U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786072A (en) * | 2019-03-04 | 2019-05-21 | 宣城沈变变压器有限公司 | A kind of dry-type transformer |
| CN109786072B (en) * | 2019-03-04 | 2024-02-13 | 宣城沈变变压器有限公司 | Dry-type transformer |
| CN112885564A (en) * | 2021-01-12 | 2021-06-01 | 江苏瑞恩电气股份有限公司 | High-safety resin-making steam-injection insulation transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201204118Y (en) | Resin insulated dry power transformer | |
| CN209418254U (en) | A kind of dry-type transformer | |
| CN202855498U (en) | Amorphous alloy oil immersed type transformer | |
| CN201638633U (en) | Low-voltage high-current high frequency water-cooled transformer | |
| CN109786072A (en) | A kind of dry-type transformer | |
| CN201117408Y (en) | High low-voltage winding rectangular coil | |
| CN209418269U (en) | A kind of closed high-tension coil of dry-type transformer | |
| CN103050245A (en) | Low-tension winding of large-capacity transformer | |
| CN203179662U (en) | Dry type transformer | |
| CN203406145U (en) | Opened coiled iron core oil-immersed transformer | |
| CN209418282U (en) | A kind of cross-over block of dry-type transformer | |
| CN2295268Y (en) | High-impedance power transformer | |
| CN202940106U (en) | Dry-type transformer with open coiled iron cores | |
| CN103106999A (en) | Dry-type transformer | |
| CN207425566U (en) | A kind of folding stereo open core no-encapsulated-winding dry-type transformer | |
| CN209418283U (en) | A kind of seal of dry-type transformer coil | |
| CN208737969U (en) | A kind of novel magnetic ring inductance | |
| CN206893403U (en) | A kind of three dimensional wound core opens wide dry transformer coil structure | |
| CN206864281U (en) | A kind of amorphous alloy dry-type transformer high-tension coil | |
| CN2919476Y (en) | Novel coil structure of 10KV dry-type transformer | |
| CN213400796U (en) | Unpowered internal airflow heat dissipation type transformer | |
| CN206225160U (en) | A kind of low-voltage, high-current synchronous rectification transformer | |
| CN106486273B (en) | A kind of seal transformer coil winding apparatus | |
| CN204632542U (en) | high-voltage dry transformer | |
| CN212230216U (en) | Dry-type transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190920 |