CN103887060A - Manufacturing method for lower end seal of dry type transformer low-voltage coil - Google Patents
Manufacturing method for lower end seal of dry type transformer low-voltage coil Download PDFInfo
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- CN103887060A CN103887060A CN201410147404.3A CN201410147404A CN103887060A CN 103887060 A CN103887060 A CN 103887060A CN 201410147404 A CN201410147404 A CN 201410147404A CN 103887060 A CN103887060 A CN 103887060A
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- voltage coil
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- dry type
- type transformer
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Abstract
The invention discloses a manufacturing method for a lower end seal of a dry type transformer low-voltage coil, and relates to the technical field of transformer end seals. In the manufacturing method, the low-voltage coil and end insulation are adopted, wherein the middle of the low-voltage coil is provided with the end insulation, the end insulation is prepreg DMD, and the thickness of the prepreg DMD is 0.18mm. The manufacturing method for the lower end seal of the dry type transformer low-voltage coil comprises the concrete process steps that (1) when the low-voltage coil A is wound, the prepreg DMD with the thickness being 0.18mm is placed; (2) after winding is completed, the low-voltage coil A is placed into an oven and dried at the temperature of 120 DEG C under the time control of five hours. According to the manufacturing method for the lower end seal of the dry type transformer low-voltage coil, work hours are reduced, the production cycle is shortened, and the mechanical strength and the electrical strength of the end seal are also greatly enhanced.
Description
Technical field
What the present invention relates to is transformer terminal encapsulation technique field, is specifically related to a kind of low-voltage coil of dry type transformer lower end envelope manufacture method.
Background technology
In order to guarantee, in situation that low-voltage coil of dry type transformer do not pour into a mould, to strengthen its protection against the tide, dustproof, corrosion resistance, improve electrical strength, increase transformer useful life.Conventional low coil first uses normal temperature resin-cast by being treated to of upper surface technique, after cured, then lower surface is processed as stated above, and the end face of finally polishing again, has increased man-hour like this, has extended the production cycle of product.
Summary of the invention
For the deficiency existing in prior art, the present invention seeks to be to provide a kind of low-voltage coil of dry type transformer lower end envelope manufacture method, reduce man-hour, shorten the production cycle, also greatly strengthen mechanical strength and the electrical strength of end envelope.
To achieve these goals, the present invention realizes by the following technical solutions: low-voltage coil of dry type transformer lower end envelope manufacture method, comprise low-voltage coil and end insulation, and between low-voltage coil, be provided with end insulation, described end insulation is preimpregnation DMD, and preimpregnation DMD thickness is 0.18mm.
The concrete technology step of described low-voltage coil of dry type transformer lower end envelope manufacture method is:
1, in the time of low-voltage coil A coiling, the preimpregnation DMD that placement thickness is 0.18mm;
2,, after complete, low-voltage coil A is put into stove, at the temperature of 120 ℃, through drying under five hours controls.
According to above-mentioned low-voltage coil of dry type transformer lower end envelope manufacture method, wherein, temperature and time in described step 2 is replaceable is 150 ℃ and 3 hours.
Beneficial effect of the present invention: will hold envelope to adopt preimpregnation DMD coiling, after drying, preimpregnation DMD, through being heating and curing, makes low pressure interlayer closely form entirety, has strengthened mechanical strength and electrical strength, has simplified production technology, has shortened the production cycle.
Accompanying drawing explanation
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
With reference to Fig. 1-2, this embodiment is by the following technical solutions: low-voltage coil of dry type transformer lower end envelope manufacture method, comprise low-voltage coil A and end insulation B, and between low-voltage coil A, be provided with end insulation B, described end insulation B is preimpregnation DMD, and preimpregnation DMD thickness is 0.18mm.
The concrete technology step of described low-voltage coil of dry type transformer lower end envelope manufacture method is:
1, in the time of low-voltage coil A coiling, the preimpregnation DMD that placement thickness is 0.18mm;
2,, after complete, low-voltage coil A is put into stove, at the temperature of 120 ℃, through drying under five hours controls.
It should be noted that temperature and time in described step 2 replaceable be 150 ℃ and 3 hours.
The low-voltage coil end envelope of this embodiment adopts preimpregnation DMD as end insulation, after coil winding completes, under the control of certain temperature and time, coil end face is solidified.
The present invention will hold envelope to adopt preimpregnation DMD coiling, and after drying, preimpregnation DMD, through being heating and curing, makes low pressure interlayer closely form entirety, has strengthened mechanical strength and electrical strength, has simplified production technology, has shortened the production cycle.
More than show and described basic 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; that in above-described embodiment and specification, describes 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.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. low-voltage coil of dry type transformer lower end envelope manufacture method, it is characterized in that, comprise low-voltage coil (A) and end insulation (B), between low-voltage coil (A), be provided with end insulation (B), described end insulation (B) is preimpregnation DMD, and preimpregnation DMD thickness is 0.18mm; The concrete technology step of described low-voltage coil of dry type transformer lower end envelope manufacture method is:
(1), in the time of low-voltage coil (A) coiling, to place thickness be 0.18mm preimpregnation DMD;
(2), after complete, low-voltage coil (A) is put into stove, at the temperature of 120 ℃, through drying under five hours controls.
2. low-voltage coil of dry type transformer according to claim 1 lower end envelope manufacture method, is characterized in that, temperature and time in described step 2 is replaceable is 150 ℃ and 3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147404.3A CN103887060A (en) | 2014-04-14 | 2014-04-14 | Manufacturing method for lower end seal of dry type transformer low-voltage coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147404.3A CN103887060A (en) | 2014-04-14 | 2014-04-14 | Manufacturing method for lower end seal of dry type transformer low-voltage coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103887060A true CN103887060A (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410147404.3A Pending CN103887060A (en) | 2014-04-14 | 2014-04-14 | Manufacturing method for lower end seal of dry type transformer low-voltage coil |
Country Status (1)
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| CN (1) | CN103887060A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217851A (en) * | 2014-09-03 | 2014-12-17 | 宁波奥克斯高科技有限公司 | End sealing method for low-voltage foil type coil of dry type transformer |
| CN107578914A (en) * | 2017-09-22 | 2018-01-12 | 南通龙翔电器设备有限公司 | End seal preparation method under a kind of low-voltage coil of dry type transformer |
| CN108933032A (en) * | 2018-07-24 | 2018-12-04 | 南通龙翔电器设备有限公司 | Low-voltage coil of dry type transformer and its upper and lower end seal production method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53139129A (en) * | 1977-05-10 | 1978-12-05 | Matsushita Electric Ind Co Ltd | Preparing dry type flyback transformer |
| JPS63211709A (en) * | 1987-02-27 | 1988-09-02 | Toshiba Corp | Manufacture of transformer coil winding |
| CN101215453A (en) * | 2007-12-28 | 2008-07-09 | 中电电气集团有限公司 | Adhesive for middle-temperature solidifying epoxy pre-dipping material and preparation method thereof |
| CN101777148A (en) * | 2010-01-14 | 2010-07-14 | 中国建设银行股份有限公司 | Management method, management system for bill receiving commercial customers and management server equipment for commercial customers |
| CN203165636U (en) * | 2012-06-21 | 2013-08-28 | 上海志友电气制造有限公司 | Dry-type transformer |
| CN203386579U (en) * | 2013-07-17 | 2014-01-08 | 国家电网公司 | Half-foil and half-wire low-voltage coil structure |
-
2014
- 2014-04-14 CN CN201410147404.3A patent/CN103887060A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53139129A (en) * | 1977-05-10 | 1978-12-05 | Matsushita Electric Ind Co Ltd | Preparing dry type flyback transformer |
| JPS63211709A (en) * | 1987-02-27 | 1988-09-02 | Toshiba Corp | Manufacture of transformer coil winding |
| CN101215453A (en) * | 2007-12-28 | 2008-07-09 | 中电电气集团有限公司 | Adhesive for middle-temperature solidifying epoxy pre-dipping material and preparation method thereof |
| CN101777148A (en) * | 2010-01-14 | 2010-07-14 | 中国建设银行股份有限公司 | Management method, management system for bill receiving commercial customers and management server equipment for commercial customers |
| CN203165636U (en) * | 2012-06-21 | 2013-08-28 | 上海志友电气制造有限公司 | Dry-type transformer |
| CN203386579U (en) * | 2013-07-17 | 2014-01-08 | 国家电网公司 | Half-foil and half-wire low-voltage coil structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217851A (en) * | 2014-09-03 | 2014-12-17 | 宁波奥克斯高科技有限公司 | End sealing method for low-voltage foil type coil of dry type transformer |
| CN107578914A (en) * | 2017-09-22 | 2018-01-12 | 南通龙翔电器设备有限公司 | End seal preparation method under a kind of low-voltage coil of dry type transformer |
| CN108933032A (en) * | 2018-07-24 | 2018-12-04 | 南通龙翔电器设备有限公司 | Low-voltage coil of dry type transformer and its upper and lower end seal production method |
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Application publication date: 20140625 |