CN204155724U - A kind of open dry-type transformer - Google Patents
A kind of open dry-type transformer Download PDFInfo
- Publication number
- CN204155724U CN204155724U CN201420615259.2U CN201420615259U CN204155724U CN 204155724 U CN204155724 U CN 204155724U CN 201420615259 U CN201420615259 U CN 201420615259U CN 204155724 U CN204155724 U CN 204155724U
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- type transformer
- square ring
- coil
- open dry
- yoke portion
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Abstract
The utility model discloses a kind of open dry-type transformer, comprise coil that is unshakable in one's determination and that be wound on iron core, iron core is divided into stem portion and iron yoke portion, and described coil winding is in stem portion, two ends of described coil are installed with square ring, and iron yoke portion is coated with insulation division; Described square ring and insulation division use insulating material to make.Open dry-type transformer of the present utility model, has and saves the advantage such as material, compact conformation.
Description
Technical field
The utility model relates to a kind of dry-type transformer, particularly relates to a kind of open dry-type transformer.
Background technology
In prior art, dry-type transformer mainly contains pouring dry transformer and open dry-type transformer, open-type transformer is than the more environmental protection of cast-type transformer, but open dry-type transformer, in order to prevent electrical breakdown, needs to increase distance between coil and iron yoke portion to increase electric clearance, make the core dimensions of transformer larger, more with material, cause the manufacturing cost of open dry-type transformer higher, be unfavorable for the popularization of product.
Summary of the invention
The utility model is intended to solve above-mentioned mentioned technical problem, provides a kind of open dry-type transformer saving material, compact conformation.
The utility model is achieved through the following technical solutions:
A kind of open dry-type transformer, comprise coil that is unshakable in one's determination and that be wound on iron core, iron core comprises stem portion and iron yoke portion, and described coil winding is in stem portion, and the two ends of described coil are installed with square ring, and described iron yoke portion is coated with insulation division; Square ring and insulation division use insulating material to make.
Further, in the form of a ring, the endoporus of square ring is provided with the projection extended vertically for fastening coil to described square ring, and the external diameter of square ring is not less than the external diameter of overhang.
Further, the projection on described square ring is subsection setup or arranges around square ring endoporus ring-type.
Further, described square ring uses insulating paper, glass-cloth board, resin or pottery to make.
Further, described insulation division is coated on the flat segments in iron yoke portion.
Further, described insulation division uses insulating paper, glass-cloth board, resin or pottery to make.
Further, described iron core is that plane is unshakable in one's determination or three-dimensional unshakable in one's determination.
Further, described coil uses combed stay or cushion block to support.
Beneficial effect is: this open dry-type transformer is when ensureing electric clearance, and the distance between the iron yoke shortening coil and iron core, reduces size unshakable in one's determination, thus saved raw material, reduce cost, also makes transformer device structure compacter simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail:
Fig. 1 is the schematic diagram of three-dimensional iron core in the utility model and coil;
Fig. 2 is the enlarged drawing of the square ring in the utility model;
Fig. 3 is the structural representation of iron core in the utility model and coil.
Embodiment
A kind of open dry-type transformer as shown in Figure 1-Figure 3, comprise unshakable in one's determination 3 and coil 1, described unshakable in one's determination 3 comprise stem portion 31 and iron yoke portion 32, described coil 1 is wound in stem portion 31, certainly, coil 1 does not directly contact with stem portion 31, between coil 1 and stem portion 31, use back-up block both to be separated, and back-up block uses comb stays or cushion block.
The square ring 2 that insulating material is made is installed with at the two ends of coil 1.Square ring 2 in the form of a ring covers the whole end of coil 1, the inner hole sleeve of square ring 2 is loaded on the stem portion 31 of unshakable in one's determination 3, and like this, square ring 2 just forms baffle between coil 1 and iron yoke portion 32, add the electric clearance between coil 1 and iron yoke portion 32, make not easily to produce electric breakdown phenomena between the two.
Square ring 2, except having the effect of increase electric clearance, also has effect that is fixing and protection coil 1.On the inner ring surface of coil 1, gone out the projection of fixation along Axis Extension, square ring 2 and coil 1 are fixed together by described projection, and coil 1 just can compress by such square ring 2, prevents coil 1 loose; In addition, square ring 2 covers the end of whole coil 1, can prevent dirt from entering coil 1, thus plays the effect of protection coil 1.According to intensity needs, the projection of square ring 2 can be the uniform setting of segmentation or arrange around square ring 2 endoporus annular.
Square ring 2 uses good insulation preformance, have the insulating paper of some strength, glass-cloth board, resin or pottery makes.
In the flat segments coated insulation portion 33 in iron yoke portion 32.The position that end that is the easiest and coil 1 produces electric breakdown phenomena is the flat segments in iron yoke portion 32, in described flat segments coated insulation portion 33, effectively can increase the electric clearance between iron yoke portion 32 and the end of coil 1, prevent from producing electric breakdown phenomena between iron yoke portion 32 and the end of coil 1.Described insulation division 33 uses good insulation preformance, lightweight insulating paper, glass-cloth board, resin or pottery to make.
To sum up narrate, while the end of coil 1 sets firmly square ring 2, also coated insulation portion 33 in the flat segments in iron yoke portion 32.Like this, between the end of coil 1 and iron yoke portion 32, form double-deck baffle, significantly increase the electric clearance between coil 1 and iron yoke portion 32, can effectively prevent from producing electric breakdown phenomena between the two.
By said structure, under the prerequisite ensureing electric clearance, the distance between coil 1 and iron yoke portion 32 can be shortened, thus reduce the size of unshakable in one's determination 3, save material, reduced cost, also made transformer device structure compacter.
Shape is that the iron core 3 of plane or solid is all applicable to said structure.
Above embodiment is only not limited in order to the technical solution of the utility model to be described, all do not depart from the utility model spirit and scope any amendment or equivalently to replace, it all should be encompassed in the scope of technical solutions of the utility model.
Claims (8)
1. an open dry-type transformer, comprise coil that is unshakable in one's determination and that be wound on iron core, iron core comprises stem portion and iron yoke portion, and described coil winding, in stem portion, is characterized in that: the two ends of described coil are installed with square ring, and described iron yoke portion is coated with insulation division; Square ring and insulation division use insulating material to make.
2. a kind of open dry-type transformer according to claim 1, is characterized in that: in the form of a ring, the endoporus of square ring is provided with the projection extended vertically for fastening coil to described square ring, and the external diameter of square ring is not less than the external diameter of overhang.
3. a kind of open dry-type transformer according to claim 2, is characterized in that: the projection on described square ring is subsection setup or arranges around square ring endoporus ring-type.
4. according to the arbitrary described a kind of open dry-type transformer of claim 1-3, it is characterized in that: described square ring uses insulating paper, glass-cloth board, resin or pottery to make.
5. a kind of open dry-type transformer according to claim 1, is characterized in that: described insulation division is coated on the flat segments in iron yoke portion.
6. a kind of open dry-type transformer according to claim 1, is characterized in that: described insulation division uses insulating paper, glass-cloth board, resin or pottery to make.
7. a kind of open dry-type transformer according to claim 1, is characterized in that: described iron core is that plane is unshakable in one's determination or three-dimensional unshakable in one's determination.
8. a kind of open dry-type transformer according to claim 1, is characterized in that: described coil uses combed stay or cushion block to support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420615259.2U CN204155724U (en) | 2014-10-22 | 2014-10-22 | A kind of open dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420615259.2U CN204155724U (en) | 2014-10-22 | 2014-10-22 | A kind of open dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155724U true CN204155724U (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420615259.2U Active CN204155724U (en) | 2014-10-22 | 2014-10-22 | A kind of open dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204155724U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111724972A (en) * | 2020-06-30 | 2020-09-29 | 广东敞开电气有限公司 | Three-dimensional roll iron core structure and transformer |
| WO2022134755A1 (en) * | 2020-12-22 | 2022-06-30 | 上海置信电气有限公司 | Insulating device for open-type dry-type transformer, and open-type dry-type transformer |
-
2014
- 2014-10-22 CN CN201420615259.2U patent/CN204155724U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111724972A (en) * | 2020-06-30 | 2020-09-29 | 广东敞开电气有限公司 | Three-dimensional roll iron core structure and transformer |
| WO2022134755A1 (en) * | 2020-12-22 | 2022-06-30 | 上海置信电气有限公司 | Insulating device for open-type dry-type transformer, and open-type dry-type transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150916 Address after: 529300 Guangdong city of Kaiping province Tsui Lake District No. 3 Huancui West Road, building 5, two Patentee after: GUANGDONG CHANGKAI ELECTRIC CO., LTD. Address before: 529300 Guangdong province Jiangmen city Kaiping District Huancui road 3 Tsui Lake Patentee before: HAIHONG ELECTRIC CO., LTD. |