CN101651019A - Casting resin coil - Google Patents
Casting resin coil Download PDFInfo
- Publication number
- CN101651019A CN101651019A CN200910017569A CN200910017569A CN101651019A CN 101651019 A CN101651019 A CN 101651019A CN 200910017569 A CN200910017569 A CN 200910017569A CN 200910017569 A CN200910017569 A CN 200910017569A CN 101651019 A CN101651019 A CN 101651019A
- Authority
- CN
- China
- Prior art keywords
- coil
- casting resin
- copper wire
- resin
- padding
- 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.)
- Pending
Links
Images
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a casting resin coil, mainly solving the problem of poor thermal conductivity of ordinary copper wire coil casting resin. The casting resin coil comprises a copper wire, an insulating glass grating plate and casting resin, and is characterized in that the copper wire adopts glass silk membrane envelopes to cover the flat type copper wire and a tower-shaped wire cake structure; and the resin contains padding. The coil casting resin contains padding and the thermal conductivity can be effectively improved, thus reducing the winding temperature, strengthening overload capacity; the padding contains silicon micro powder and flexibilizer, so the fireproof performance can be effectively improved; winding a thin film and glass silk on the flat type copper wire is taken asan insulating measure, thus having good voltage breakdown resistance, high mechanical strength of the insulating layer, difficulty in cracking of the coil and strong adaptive capacity to environment.
Description
Technical field
The present invention relates to a kind of coil of dry-type transformer, specifically a kind of casting resin coil.
Background technology
Usually be the molded coil of conductor with the copper cash,, adopt packless resin-cast usually because be subjected to the restriction of aspects such as material behavior, manufacturing process.Because pure resin is the non-conductor of heat, its conductive coefficient is 0.25W/mk only, is unfavorable for the heat radiation of transformer coil, causes the temperature of winding too high easily, has influenced the fire protecting performance of dry-type transformer.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and a kind of casting resin coil is provided, break through the technical limitations of copper coil virgin resin cast, improve the fire protecting performance of dry-type transformer simultaneously.
The present invention solves the technical scheme that its technical problem takes: a kind of casting resin coil, comprise copper cash, insulating glass waffle slab and resin, and it is characterized in that described copper cash adopts glass fiber coating bag flat type copper wire, is turriform line cake structure; Contain filler in the described resin.
Contain silicon powder and flexibilizer in the filler in the described resin.
The invention has the beneficial effects as follows: owing in this coil casting resin filler is arranged, can effectively improve heat conductivity, therefore can reduce winding temperature, strengthen overload capacity; Again because contain silicon powder and flexibilizer in the filler, can effectively improve fire protecting performance, wrapped film and glass fiber have good proof voltage breakdown, and the insulating glass waffle slab are as insulating barriers as insulation measures on flat type copper wire, guarantee that resin can effectively permeate, reduce office's value of putting, improved the coil electric insulation property, the mechanical strength height, coil is not easy to crack, has very strong adaptive capacity to environment.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is a vertical view of the present invention.
Among the figure: 1 copper cash, 2 glass plate grids, 3 resins.
Embodiment
As shown in Figure 1 and Figure 2, a kind of casting resin coil comprises copper cash 1, insulating glass waffle slab 2 and resin 3.Described coil-conductor adopts glass fiber coating bag flat type copper wire 1, is turriform line cake structure, and there is insulating barrier described line cake both sides, and insulating barrier adopts big mesh, vacuum impregnation glass plate grid 2; Described resin 3 is transformer coil cast resin, this casting resin 3 is made up of epoxy resin, curing agent, promoter and filler, wherein, filler accounts for the 50-65% (percentage by weight) of resin 3 total amounts, and the consumption of epoxy resin, curing agent and promoter is the conventional amount used of existing production of resins.Contain silicon powder and flexibilizer in the filler, the addition of silicon powder and flexibilizer and relative scale are added according to conventional addition separately and are got final product, and those skilled in the art can prepare voluntarily, and this resin 3 has good insulation and heat conductivility, can effectively improve fire protecting performance.
Its manufacturing process is, coil adopts glass fiber coating bag flat type copper wire 1 lap wound, and big mesh, vacuum-impregnated glass plate grid 2 are placed in every layer line cake both sides, guarantee that resin effectively permeates coil.The mould of after coiling is finished coil being packed into is poured into a mould under vacuum state with resin 3, then coil is put into the curing oven moulding that is heating and curing.
Claims (2)
1, a kind of casting resin coil comprises copper cash, insulating glass waffle slab and casting resin, it is characterized in that, described copper cash adopts glass fiber coating bag flat type copper wire, is turriform line cake structure; Contain filler in the described resin.
2, a kind of casting resin coil according to claim 1 is characterized in that, contains silicon powder and flexibilizer in the described filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910017569A CN101651019A (en) | 2009-08-05 | 2009-08-05 | Casting resin coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910017569A CN101651019A (en) | 2009-08-05 | 2009-08-05 | Casting resin coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101651019A true CN101651019A (en) | 2010-02-17 |
Family
ID=41673227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910017569A Pending CN101651019A (en) | 2009-08-05 | 2009-08-05 | Casting resin coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101651019A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779068A (en) * | 2014-02-20 | 2014-05-07 | 江西特种变压器厂 | Continuous pouring coil manufacturing method of cushion block without cake space |
| CN105023745A (en) * | 2015-08-11 | 2015-11-04 | 鲁特电工股份有限公司 | Resin-insulation dry-type long-round-cake-shaped coil and winding method |
| CN106601435A (en) * | 2017-02-16 | 2017-04-26 | 上海博纳杰陈电气有限公司 | High voltage coil of amorphous alloy dry-type transformer |
| CN108806955A (en) * | 2018-05-29 | 2018-11-13 | 保定天威保变电气股份有限公司 | It is a kind of to pour type power extraction coil with high anti-short circuit capability |
-
2009
- 2009-08-05 CN CN200910017569A patent/CN101651019A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779068A (en) * | 2014-02-20 | 2014-05-07 | 江西特种变压器厂 | Continuous pouring coil manufacturing method of cushion block without cake space |
| CN103779068B (en) * | 2014-02-20 | 2016-04-20 | 江西特种变压器厂 | A kind of continous way molded coil manufacture method without cushion block between cake |
| CN105023745A (en) * | 2015-08-11 | 2015-11-04 | 鲁特电工股份有限公司 | Resin-insulation dry-type long-round-cake-shaped coil and winding method |
| CN106601435A (en) * | 2017-02-16 | 2017-04-26 | 上海博纳杰陈电气有限公司 | High voltage coil of amorphous alloy dry-type transformer |
| CN108806955A (en) * | 2018-05-29 | 2018-11-13 | 保定天威保变电气股份有限公司 | It is a kind of to pour type power extraction coil with high anti-short circuit capability |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100426630C (en) | Method for twining VPI corona-prevention layer between stator coil main insulating layer and corona-prevention layer | |
| CN102543384B (en) | Flameproof mining mobile transformer substation amorphous alloy iron core all insulation dry-type transformer | |
| CN101651019A (en) | Casting resin coil | |
| CN103146148A (en) | Halogen-free flame retardant epoxy resin composition and dry type transformer poured by same | |
| JP6686071B2 (en) | Epoxy resin composition and transformer containing the same | |
| CN105761911B (en) | A kind of epoxy cast transformer and its manufacturing method of compound main airway insulation system | |
| CN2442364Y (en) | Insulation encapsulated coil | |
| CN106910575A (en) | A kind of high-performance post composite insulator plug and its manufacture method | |
| CN201084525Y (en) | A bare-conductor dry-type transformer coil | |
| CN102468725B (en) | A kind of process for encapsulating stator coil in motor | |
| CN201549343U (en) | Casting resin coil | |
| CN102890998A (en) | Insulated winding or electromagnetic coil for electrical equipment and sintering and forming process of insulated winding or electromagnetic coil | |
| CN208938704U (en) | A kind of wrap-around fire safe type tube type bus | |
| CN103632818A (en) | Dry type transformer | |
| CN106009516A (en) | Resin composite for low-voltage busbar | |
| CN202003805U (en) | Epoxy resin poured type high-pressure coil of dry type transformer | |
| CN203242477U (en) | Combined structure of core and windings of dry type transformer | |
| CN102324268B (en) | Resin-rich epoxy glass powder mica tape | |
| CN205159059U (en) | Dry -type electrical transformer solenoid with silicon rubber insulation packing and solidification | |
| CN104240921A (en) | Dry-type transformer end insulation structure and method | |
| CN201498332U (en) | Dry transformer coil structure | |
| CN201975238U (en) | Outer encapsulating insulation structure for transformer coil | |
| CN207021116U (en) | A kind of Cast Resin Dry-Type Transformer | |
| CN203536189U (en) | Amorphous alloy dry-type transformer with pie-type high-voltage coil | |
| CN202332544U (en) | Insulation coil of dry type series reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100217 |