CN107658100A - A kind of dry-type transformer - Google Patents
A kind of dry-type transformer Download PDFInfo
- Publication number
- CN107658100A CN107658100A CN201711064389.6A CN201711064389A CN107658100A CN 107658100 A CN107658100 A CN 107658100A CN 201711064389 A CN201711064389 A CN 201711064389A CN 107658100 A CN107658100 A CN 107658100A
- Authority
- CN
- China
- Prior art keywords
- dry
- type transformer
- heat radiation
- coil
- air flue
- 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.)
- Withdrawn
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Classifications
-
- 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
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- 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
-
- 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
-
- 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
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Induction Heating (AREA)
Abstract
The present invention relates to a kind of dry-type transformer, the dry-type transformer is followed successively by iron core from inside to outside, insulation board, low-voltage coil, radiate air flue, high-tension coil, poured on the low-voltage coil and high-tension coil using epoxy resin, the dry-type transformer also includes upper cushion block, lower cushion block, upper clamping piece, lower clamping piece, draw screw rod, several heat radiation conduits are uniformly vertically arranged with the radiating air flue, the height of the heat radiation conduit is slightly above the height of coil, the material of the heat radiation conduit is also epoxy resin, the heat radiation conduit that the present invention passes through the setting epoxy resin material in the air flue that radiates, both financial cost is reduced, its heat dispersion is improved again；In addition, by being wound with glass fiber in the periphery of low-voltage coil and high-tension coil, the overall mechanical strength of dry-type transformer is further improved.
Description
Technical field
The present invention relates to transformer technology field, and in particular to a kind of dry-type transformer.
Background technology
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary
Level coil and iron core；Major function has：Voltage transformation, current transformation, impedance conversion, isolation, voltage stabilizing etc.；It can divide by purposes
For：Power transformer and special transformer, the special transformer are mainly electric furnace change, rectification change, power frequency testing transformer, tune
Depressor, mining change, audio-frequency transformer, intermediate-frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer
Device, reactor, transformer etc.；During transformer station high-voltage side bus, heat caused by the loss in winding and iron core must give out in time
Go, in order to avoid overheat and cause insulation damages；To small capacity transformer, external surface area and the ratio between transformer volume are relatively large, can
In a manner of use is self cooling, heat being dispersed by radiation and free convection, self cooling mode is applied to indoor small transformer,
Small-capacity dry-type transformer of the prior art, its radiating is generally hot by the radiating air flue self defocusing of itself, and the air flue that radiates
Be divided into longitudinal direction radiating air flue and heatsink transverse air flue, no matter any radiating air flue, be required for setting corresponding annex to enter it
Row is oriented to, and sets annex to influence the heat dispersion of dry-type transformer, and can increase corresponding financial cost, therefore,
Design a kind of simple in construction, perfect heat-dissipating, cost-effective dry-type transformer is significant.
The content of the invention
The invention aims to solve above-mentioned technical problem, there is provided a kind of simple in construction, perfect heat-dissipating, economic section
Dry-type transformer about.
First aspect, there is provided a kind of dry-type transformer, the dry-type transformer are followed successively by iron core, insulation board, low from inside to outside
Line ball circle, radiate air flue, high-tension coil, is poured on the low-voltage coil and high-tension coil using epoxy resin, the dry type transformation
Device also includes upper cushion block, lower cushion block, upper clamping piece, lower clamping piece, drawing screw rod, and several are uniformly vertically arranged with the radiating air flue
Heat radiation conduit, the height of the heat radiation conduit are slightly above the height of coil, and the material of the heat radiation conduit is also epoxy resin.
With reference in a first aspect, in the first possible implementation of first aspect, the heat radiation conduit is shaped as
Ellipse.
With reference in a first aspect, in second of possible implementation of first aspect, the low-voltage coil and high-voltage line
The periphery of circle is wound with glass fiber.
The beneficial effects of the present invention are：
The present invention is both reduced financial cost, improved again by the heat radiation conduit of the setting epoxy resin material in the air flue that radiates
Its heat dispersion；In addition, by being wound with glass fiber in the periphery of low-voltage coil and high-tension coil, further improve dry
The overall mechanical strength of formula transformer.
Brief description of the drawings
Fig. 1 is dry-type transformer of the present invention（Three-phase）Front view.
Fig. 2 is dry-type transformer of the present invention（It is single-phase）Top view.
Fig. 3 is dry-type transformer of the present invention（Three-phase）Sectional view.
Wherein：1st, iron core 2, insulation board 3, low-voltage coil 4, radiating air flue 41, heat radiation conduit 5, high-voltage line
Circle 6, upper cushion block 7, lower cushion block 8, upper clamping piece 9, lower clamping piece 10, drawing screw rod.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is the part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other reality that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example is applied, should all belong to the scope of protection of the invention.
It should be understood that small-capacity dry-type transformer of the prior art, its radiating is generally spontaneous by the radiating air flue of itself
Radiating, and the air flue that radiates is divided into longitudinal direction radiating air flue and heatsink transverse air flue, no matter any radiating air flue, be required for setting phase
The annex answered is oriented to it, and sets annex to influence the heat dispersion of dry-type transformer, and can be increased corresponding
Financial cost.
The dry-type transformer of embodiments of the invention is described in detail with reference to Fig. 1, Fig. 2, Fig. 3.
The present invention provides a kind of dry-type transformer, and the dry-type transformer is followed successively by iron core 1, insulation board 2, low pressure from inside to outside
Coil 3, radiate air flue 4, high-tension coil 5, is poured on the low-voltage coil 3 and high-tension coil 5 using epoxy resin, and the dry type becomes
Depressor also includes upper cushion block 6, lower cushion block 7, upper clamping piece 8, lower clamping piece 9, draws screw rod 10, further, the low-voltage coil 3 and height
The periphery of line ball circle 5 is wound with glass fiber；Several heat radiation conduits 41 are uniformly vertically arranged with the radiating air flue 4, are more entered
One step, the heat radiation conduit 41 be shaped as ellipse, for the present embodiment, although the geometric form of the heat radiation conduit 41
It is key factor that shape, which is not, it has however been found that when the length of the heat radiation conduit 41 is about the three times of its width, radiating is led
Pipe 41 is optimal structural shape, also, the structure of heat radiation conduit 41 can also be optimized using these relative sizes, and is made
The loop construction that big envelope has resin has optimal heat transfer performance, and the height of the heat radiation conduit 41 is slightly above the height of coil
Degree so that the dry-type transformer has more preferable insulating properties, and the material of the heat radiation conduit 41 is epoxy resin, is both improved
Its heat dispersion, has saved cost again.
In a word, dry type transformer structure of the invention is simple, perfect heat-dissipating, cost are cheap.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be with
Realized with hardware, or firmware is realized, or combinations thereof mode is realized；In a word, it the foregoing is only technical solution of the present invention
Preferred embodiment, be not intended to limit the scope of the present invention.Within the spirit and principles of the invention, made
Any modification, equivalent substitution and improvements etc., should be included in the scope of the protection.
Claims (3)
1. a kind of dry-type transformer, the dry-type transformer is followed successively by iron core from inside to outside（1）, insulation board（2）, low-voltage coil（3）、
Radiate air flue（4）, high-tension coil（5）, the low-voltage coil（3）And high-tension coil（5）It is upper to be poured using epoxy resin, the dry type
Transformer also includes upper cushion block（6）, lower cushion block（7）, upper clamping piece（8）, lower clamping piece（9）, draw screw rod（10）, it is characterised in that：Institute
State radiating air flue（4）In be uniformly vertically arranged with several heat radiation conduits（41）, the heat radiation conduit（41）Height be slightly above
The height of coil, the heat radiation conduit（41）Material be also epoxy resin.
2. dry-type transformer according to claim 1, it is characterised in that：The heat radiation conduit（41）Be shaped as ellipse
Shape.
3. dry-type transformer according to claim 1, it is characterised in that：The low-voltage coil（3）And high-tension coil（5）'s
Periphery is wound with glass fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711064389.6A CN107658100A (en) | 2017-11-02 | 2017-11-02 | A kind of dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711064389.6A CN107658100A (en) | 2017-11-02 | 2017-11-02 | A kind of dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107658100A true CN107658100A (en) | 2018-02-02 |
Family
ID=61095566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711064389.6A Withdrawn CN107658100A (en) | 2017-11-02 | 2017-11-02 | A kind of dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107658100A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010689A (en) * | 2018-02-05 | 2018-05-08 | 国网河南省电力公司新乡供电公司 | A kind of dry-type transformer |
| CN111584219A (en) * | 2020-06-10 | 2020-08-25 | 青岛鼎信通讯股份有限公司 | Three-phase high-frequency transformer applied to power electronic transformer |
| CN111599577A (en) * | 2020-04-26 | 2020-08-28 | 青岛鼎信通讯股份有限公司 | Multi-winding medium-voltage high-frequency transformer applied to power electronic transformer |
-
2017
- 2017-11-02 CN CN201711064389.6A patent/CN107658100A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010689A (en) * | 2018-02-05 | 2018-05-08 | 国网河南省电力公司新乡供电公司 | A kind of dry-type transformer |
| CN111599577A (en) * | 2020-04-26 | 2020-08-28 | 青岛鼎信通讯股份有限公司 | Multi-winding medium-voltage high-frequency transformer applied to power electronic transformer |
| CN111584219A (en) * | 2020-06-10 | 2020-08-25 | 青岛鼎信通讯股份有限公司 | Three-phase high-frequency transformer applied to power electronic transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180202 |