CN204760193U - Novel three -dimensional dry -type transformer unshakable in one's determination iron core of rolling up - Google Patents
Novel three -dimensional dry -type transformer unshakable in one's determination iron core of rolling up Download PDFInfo
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- CN204760193U CN204760193U CN201520344316.2U CN201520344316U CN204760193U CN 204760193 U CN204760193 U CN 204760193U CN 201520344316 U CN201520344316 U CN 201520344316U CN 204760193 U CN204760193 U CN 204760193U
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Abstract
The utility model discloses a novel three -dimensional dry -type transformer unshakable in one's determination iron core of rolling up, it is formed by three measure -alike single frame amalgamation unshakable in one's determination, three single frame unshakable in one's determination is three -dimensional triangular configuration, indisputable yoke upper portion be provided with the insulating layer that is used for strengthening the dielectric strength between iron core and the coil through the upper yoke upper portion at single frame unshakable in one's determination under and, thereby dielectric strength unshakable in one's determination has been strengthened, strengthen the dielectric strength between iron core and the coil through increasing window height unshakable in one's determination in the way traditional relatively, this electrical steel quantity is than less, and lower cost, owing to need not increase the window height, consequently, its no -load loss is also lower.
Description
Technical field
The utility model relates to technical field of transformer equipment, is specifically related to a kind of novel solid rolled iron core dry-type transformer iron core.
Background technology
Three-dimensional wound core dry type transformer, because of the three-phase magnetic circuit full symmetric of its iron core, has that magnetic resistance is little, exciting current and a low feature of no-load loss, and therefore economic benefit is very significantly widely used.The Double layer iron yoke place unshakable in one's determination of three-dimensional wound core dry type transformer common at present does not arrange reinforced insulation to strengthen the dielectric strength between iron core and coil, thus need to increase the high dielectric strength ensured between iron core and coil of window unshakable in one's determination, but increase that window unshakable in one's determination is high causes silicon steel consumption unshakable in one's determination to increase, improve production cost unshakable in one's determination, and under the prerequisite that the number of turn is identical, too increase the no-load loss of transformer.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of novel solid rolled iron core dry-type transformer unshakable in one's determination, and it does not increase window unshakable in one's determination while can strengthening the dielectric strength between iron core and coil high.
The technical scheme that the utility model adopts is mainly: a kind of novel solid rolled iron core dry-type transformer is unshakable in one's determination, it is put together by three measure-alike single frames unshakable in one's determination, described three single frames unshakable in one's determination spatially triangular arrangement, described single frame unshakable in one's determination comprises core limb and upper and lower iron yoke, and described upper yoke top and lower yoke top are provided with the insulating barrier of the dielectric strength strengthened between iron core and coil.
As the improvement of technique scheme, described insulating barrier is that NOMEX paper or glass cloth are made and be wrapped in upper yoke top and the lower yoke top of three single frames unshakable in one's determination.
As the further improvement of technique scheme, the described insulating barrier number of plies be wrapped on iron core be two-layer or two-layer more than.
Further, described insulating barrier is coated with insulating varnish.
Further, described single frame unshakable in one's determination is formed through winding by silicon steel sheet billot.
The beneficial effects of the utility model are:
A kind of novel solid rolled iron core dry-type transformer of the present utility model is unshakable in one's determination, it is put together by three measure-alike single frames unshakable in one's determination, three single frames unshakable in one's determination spatially triangular arrangement, by being provided with the insulating barrier of the dielectric strength strengthened between iron core and coil on the upper yoke top of single frame unshakable in one's determination and lower yoke top, thus enhance dielectric strength unshakable in one's determination, by increasing the high dielectric strength strengthened between iron core and coil of window unshakable in one's determination in relative traditional method, this electrical steel amount ratio is less, cost is lower, it is high due to need not window be increased, therefore its no-load loss is also lower.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1, preferred embodiment of the present utility model, a kind of novel solid rolled iron core dry-type transformer is unshakable in one's determination, it is put together by three measure-alike single frames unshakable in one's determination 1, three single frames 1 unshakable in one's determination spatially triangular arrangement, single frame 1 unshakable in one's determination comprises core limb 11 and upper, lower yoke 12, 13, the utility model is by being provided with the insulating barrier 2 of the dielectric strength strengthened between iron core and coil on upper yoke 12 top of single frame 1 unshakable in one's determination and lower yoke 13 top, thus enhance dielectric strength unshakable in one's determination, by increasing the high dielectric strength strengthened between iron core and coil of window unshakable in one's determination in relative traditional method, this electrical steel amount ratio is less, cost is lower, it is high due to need not window be increased, therefore its no-load loss is also lower.
Concrete, insulating barrier 2 is that NOMEX paper or glass cloth are made and be wrapped in upper yoke 12 top and lower yoke 13 top of three single frames 1 unshakable in one's determination, insulating barrier 2 in the present embodiment preferentially selects NOMEX paper to make, NOMEX paper has higher mechanical performance, flexibility and good electrical performance, it can keep its characteristic at a higher temperature, is widely used in generator, transformer, electric equipment, electromechanics and household electrical appliance.
For ensureing dielectric strength unshakable in one's determination, insulating barrier 2 number of plies be wrapped on iron core be two-layer or two-layer more than, be preferably three layers or four layers, now unshakable in one's determinationly can obtain higher insulation property and reduce the workload be wound around needed for insulating barrier 2 simultaneously as far as possible.
For improving the insulation property of insulating barrier 2 further, insulating barrier 2 is also coated with insulating varnish, insulating varnish carries out baking and curing process after being spread evenly across the surface of NOMEX paper or glass cloth, thus further enhancing the insulation property of the insulating barrier 2 made with NOMEX paper or glass cloth.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, as long as the technical scheme realizing the utility model object with basic same approach all belongs within protection range of the present utility model.
Claims (5)
1. a novel solid rolled iron core dry-type transformer is unshakable in one's determination, it is characterized in that: it is put together by three measure-alike single frames unshakable in one's determination (1), described three single frames unshakable in one's determination (1) spatially triangular arrangement, described single frame unshakable in one's determination (1) comprises core limb (11) and upper and lower iron yoke (12,13), and described upper yoke (12) top and lower yoke (13) top are provided with the insulating barrier (2) of the dielectric strength strengthened between iron core and coil.
2. a kind of novel solid rolled iron core dry-type transformer according to claim 1 is unshakable in one's determination, it is characterized in that: described insulating barrier (2) is made for NOMEX paper or glass cloth and is wrapped in upper yoke (12) top and lower yoke (13) top of three single frames unshakable in one's determination (1).
3. a kind of novel solid rolled iron core dry-type transformer according to claim 2 is unshakable in one's determination, it is characterized in that: described insulating barrier (2) number of plies be wrapped on iron core be two-layer or two-layer more than.
4. a kind of novel solid rolled iron core dry-type transformer according to claim 2 is unshakable in one's determination, it is characterized in that: (2) are coated with insulating varnish to described insulating barrier.
5. a kind of novel solid rolled iron core dry-type transformer according to claim 1 is unshakable in one's determination, it is characterized in that: described single frame unshakable in one's determination (1) is formed through winding by silicon steel sheet billot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344316.2U CN204760193U (en) | 2015-05-25 | 2015-05-25 | Novel three -dimensional dry -type transformer unshakable in one's determination iron core of rolling up |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344316.2U CN204760193U (en) | 2015-05-25 | 2015-05-25 | Novel three -dimensional dry -type transformer unshakable in one's determination iron core of rolling up |
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| CN204760193U true CN204760193U (en) | 2015-11-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449044A (en) * | 2016-05-11 | 2017-02-22 | 海鸿电气有限公司 | Open-type three-dimensional wound core and method of manufacturing transformer by using same |
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2015
- 2015-05-25 CN CN201520344316.2U patent/CN204760193U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449044A (en) * | 2016-05-11 | 2017-02-22 | 海鸿电气有限公司 | Open-type three-dimensional wound core and method of manufacturing transformer by using same |
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