CN104992834A - Manufacturing technology of dry type transformer coil - Google Patents
Manufacturing technology of dry type transformer coil Download PDFInfo
- Publication number
- CN104992834A CN104992834A CN201510499818.7A CN201510499818A CN104992834A CN 104992834 A CN104992834 A CN 104992834A CN 201510499818 A CN201510499818 A CN 201510499818A CN 104992834 A CN104992834 A CN 104992834A
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- China
- Prior art keywords
- transformer coil
- type transformer
- semicylindrical body
- insulation
- dry
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Abstract
The invention discloses a manufacturing technology of a dry type transformer coil and belongs to the technical field of transformer coil manufacturing. The manufacturing technology includes the following steps that firstly a winding die is adjusted to the needed size, two split semicircular cylinders surround and are wrapped on the die, glue is coated to grooves of the two semicircular cylinders so that the two semicircular cylinders are bonded together, an insulation lever is installed at the grooves of the two semicircular cylinders, and the two semicircular cylinders are surrounded by a tightly-wrapping strip to be tightly tightened in the circumference direction; secondly, an inner and outer protection insulation film made of the same material with a main insulation and an end insulation is selected; thirdly, the insulation film contracting in one direction is wound on the die, a chamfered lead is welded to one end of metal foil, meanwhile, the lead needs to be put into a lead groove to be fixed through tape, and then winding is conducted according to the requirement that two or three layers of insulation films are put between every layer of metal foil; fourthly, vacuum drying is conducted after winding is completed, and the whole casting and curing process is operated completely according to technological requirements.
Description
Technical field
The invention belongs to transformer coil manufacture technology field, especially relevant with a kind of dry-type transformer coil manufacturing process.
Background technology
The low-pressure dry electromagnetic wire of transformer coiling structure of below 1kV voltage is all adopt overall poured with epoxy resin, by coil assembling in a mold, the mould of use comprises: internal mold, external mold and mould chassis, integrated poured epoxy resin, through drying solidification, complete coil.This coil production technique is loaded down with trivial details, and mould has high input, high material consumption, and the production cycle is long.Patent publication No. is that CN202434316U discloses a kind of resin insulating dry type transformer coil, comprise: electromagnetism wire turn, the inside and outside both sides of described electromagnetism wire turn are respectively arranged with high-performance polyester thin layer, upper, the outside lower both sides of described electromagnetism wire turn are respectively arranged with epoxy resin layer, for the basis of this transformer coil, applicant has researched and developed a kind of dry-type transformer coil manufacturing process.
Summary of the invention
Object of the present invention aims to provide the dry-type transformer coil manufacturing process that a kind of structure is simple, electrical insulation properties is good.
For this reason, the present invention is by the following technical solutions: dry-type transformer coil manufacturing process, is characterized in that, described dry-type transformer coil manufacturing process comprises the following steps:
1, winding mould is adjusted to the size of needs, wrap on winding mould by two of distinguish semicylindrical body, two semicylindrical body groove place cementings, bond together mutually, two semicylindrical body groove place installing insulating thick sticks, it is urgent that circumferencial direction is wound around hard-pressed bale band;
2, selecting to insulate with main insulation and holding is the inside and outside protection dielectric film of same material;
3, the dielectric film of unidirectional contraction is wound on mould, by the wire bonds of chamfering one end to metal forming, needs lead-in wire to put into wire lead slot simultaneously, fix with adhesive tape, after carry out coiling according to the requirement of putting two-layer or three-layer insulated film between every layer of metal forming;
4, carry out vacuumize after coiling, whole cast and solidification process operate according to technological requirement completely.
For to technique scheme supplement and perfect, the present invention also comprises following technical characteristic.
The bonding pre-treatment of insulating cylinder; Insulating cylinder is divided into two semicylindrical body, the position bevel that semicylindrical body overlaps mutually, the insulating board of processing two semicylindrical body carries out drying in advance and drenches oil processing, after insulating board process, by groove place transformer oil drying and processing, to ensure the bonding consolidation of insulating cylinder.
The minimum thickness of described dielectric film reaches 1mm thickness.
Use the present invention can reach following beneficial effect: foil type capacitive coil sintering process of the present invention, Material selec-tion is considered shrinkage and the insulation property of self of material, utilize the mode vacuumizing and sinter to make coil molding, the manufacturing cost greatly reduced simultaneously; Adopt sintering process of the present invention, the flow process of drying, dipping lacquer, redrying, secondary dipping lacquer can be saved.Structure of the present invention is simple, and electrical insulation properties is good, decreases the consumption of epoxy resin, simplifies production technology, shortens the production cycle, and mould only needs internal mold on dropping into, and reduces production cost.
Embodiment
The present invention includes following steps:
1, winding mould is adjusted to the size of needs, wrap on winding mould by two of distinguish semicylindrical body, two semicylindrical body groove place cementings, bond together mutually, two semicylindrical body groove place installing insulating thick sticks, it is urgent that circumferencial direction is wound around hard-pressed bale band;
2, selecting to insulate with main insulation and holding is the inside and outside protection dielectric film of same material; 3, the dielectric film of unidirectional contraction is wound on mould, by the wire bonds of chamfering one end to metal forming, needs lead-in wire to put into wire lead slot simultaneously, fix with adhesive tape, after carry out coiling according to the requirement of putting two-layer or three-layer insulated film between every layer of metal forming;
4, carry out vacuumize after coiling, whole cast and solidification process operate according to technological requirement completely.
Further, the bonding pre-treatment of insulating cylinder: insulating cylinder is divided into two semicylindrical body, the position bevel that semicylindrical body overlaps mutually, the insulating board of processing two semicylindrical body carries out drying in advance and drenches oil processing, after insulating board process, by groove place transformer oil drying and processing, to ensure the bonding consolidation of insulating cylinder.
Preferably, the minimum thickness of described dielectric film reaches 1mm thickness.
Foil type capacitive coil sintering process of the present invention, Material selec-tion is considered shrinkage and the insulation property of self of material, utilizes the mode vacuumizing and sinter to make coil molding, the manufacturing cost greatly reduced simultaneously; Adopt sintering process of the present invention, the flow process of drying, dipping lacquer, redrying, secondary dipping lacquer can be saved.Structure of the present invention is simple, and electrical insulation properties is good, decreases the consumption of epoxy resin, simplifies production technology, shortens the production cycle, and mould only needs internal mold on dropping into, and reduces production cost.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (3)
1. dry-type transformer coil manufacturing process, is characterized in that: described dry-type transformer coil manufacturing process comprises the following steps:
1.1, winding mould is adjusted to the size of needs, wrap on winding mould by two of distinguish semicylindrical body, two semicylindrical body groove place cementings, bond together mutually, two semicylindrical body groove place installing insulating thick sticks, it is urgent that circumferencial direction is wound around hard-pressed bale band;
1.2, selecting to insulate with main insulation and holding is the inside and outside protection dielectric film of same material;
1.3, the dielectric film of unidirectional contraction is wound on mould, by the wire bonds of chamfering one end to metal forming, needs lead-in wire to put into wire lead slot simultaneously, fix with adhesive tape, after carry out coiling according to the requirement of putting two-layer or three-layer insulated film between every layer of metal forming;
1.4, carry out vacuumize after coiling, whole cast and solidification process operate according to technological requirement completely.
2. dry-type transformer coil manufacturing process according to claim 1, it is characterized in that: the bonding pre-treatment of insulating cylinder: insulating cylinder is divided into two semicylindrical body, the position bevel that semicylindrical body overlaps mutually, the insulating board of processing two semicylindrical body carries out drying in advance and drenches oil processing, after insulating board process, by groove place transformer oil drying and processing, to ensure the bonding consolidation of insulating cylinder.
3. dry-type transformer coil manufacturing process according to claim 2, is characterized in that: the minimum thickness of described dielectric film reaches 1mm thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510499818.7A CN104992834A (en) | 2015-08-16 | 2015-08-16 | Manufacturing technology of dry type transformer coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510499818.7A CN104992834A (en) | 2015-08-16 | 2015-08-16 | Manufacturing technology of dry type transformer coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104992834A true CN104992834A (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510499818.7A Pending CN104992834A (en) | 2015-08-16 | 2015-08-16 | Manufacturing technology of dry type transformer coil |
Country Status (1)
| Country | Link |
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| CN (1) | CN104992834A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582172A (en) * | 2020-12-17 | 2021-03-30 | 安徽沃华电力设备有限公司 | Composite insulating cylinder, current limiter and processing technology thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5327445B2 (en) * | 1974-04-04 | 1978-08-08 | ||
| CN102360941A (en) * | 2011-11-09 | 2012-02-22 | 天威保变（秦皇岛）变压器有限公司 | Process for bonding insulation cylinder of transformer coil |
| CN202434316U (en) * | 2012-02-03 | 2012-09-12 | 盐城华盛变压器制造有限公司 | Resin insulated dry type transformer coil |
| CN102682990A (en) * | 2012-05-13 | 2012-09-19 | 江苏有能电力自动化有限公司 | Technique for sintering foil type capacitive coil |
| CN103762071A (en) * | 2013-12-31 | 2014-04-30 | 江苏有能电力自动化有限公司 | Foil type capacitive coil sintering process |
-
2015
- 2015-08-16 CN CN201510499818.7A patent/CN104992834A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5327445B2 (en) * | 1974-04-04 | 1978-08-08 | ||
| CN102360941A (en) * | 2011-11-09 | 2012-02-22 | 天威保变（秦皇岛）变压器有限公司 | Process for bonding insulation cylinder of transformer coil |
| CN202434316U (en) * | 2012-02-03 | 2012-09-12 | 盐城华盛变压器制造有限公司 | Resin insulated dry type transformer coil |
| CN102682990A (en) * | 2012-05-13 | 2012-09-19 | 江苏有能电力自动化有限公司 | Technique for sintering foil type capacitive coil |
| CN103762071A (en) * | 2013-12-31 | 2014-04-30 | 江苏有能电力自动化有限公司 | Foil type capacitive coil sintering process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582172A (en) * | 2020-12-17 | 2021-03-30 | 安徽沃华电力设备有限公司 | Composite insulating cylinder, current limiter and processing technology thereof |
| CN112582172B (en) * | 2020-12-17 | 2022-09-27 | 安徽沃华电力设备有限公司 | Composite insulating cylinder, current limiter and processing technology of composite insulating cylinder |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
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| RJ01 | Rejection of invention patent application after publication |