CN202996523U - Clamping piece insulation for oil-immersed transformer - Google Patents
Clamping piece insulation for oil-immersed transformer Download PDFInfo
- Publication number
- CN202996523U CN202996523U CN 201220585555 CN201220585555U CN202996523U CN 202996523 U CN202996523 U CN 202996523U CN 201220585555 CN201220585555 CN 201220585555 CN 201220585555 U CN201220585555 U CN 201220585555U CN 202996523 U CN202996523 U CN 202996523U
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- silicon steel
- clamping piece
- oil
- protuberance
- iron core
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Abstract
The utility model belongs to the technical field of transformers, and particularly relates to clamping piece insulation for an oil-immersed transformer. The clamping piece insulation comprises a template, a base plate and a mounting hole, wherein the base plate is provided with bulged parts; the bulged parts and the base plate are formed integrally; and the distribution of the bulged parts is consistent with that of silicon steel sheets on the surface layer of an iron core in the transformer. The clamping piece insulation aims to solve the problem of the electrification of a clamping piece caused by the contact of the bulged silicon steel sheets and the clamping piece due to the longitudinal pushing of the silicon steel sheets on the surface layer of the iron core caused by unreasonable structural design of the clamping piece insulation for the conventional oil-immersed transformer.
Description
Technical field
The utility model belongs to the transformer technology field, is specifically related to the oil-filled transformer clamp insulation.
Background technology
Oil-filled transformer comprises winding and iron core, and iron core is formed by the multi-disc silicon steel plate stacking.Usually, iron core is fixed by clamping element.In order to realize the insulation between clamping element and silicon steel sheet, people arrange clamp insulation between clamping element and silicon steel sheet.Now present, the structural design of oil-filled transformer clamp insulation is very simple, and as shown in Figure 1, it comprises web 1, pastes a wide backing plate 2 on web 1, and the two ends of web 1 offer installing hole 3.Really, such structural design, very easy to use.Yet, because the width of web 1 equates with the width of backing plate 2, therefore backing plate 2 can only be realized the insulation to the silicon steel sheet contact site.Under the long duration of action of clamping element, the surface silicon steel disc of iron core is stressed and vertical rubbing occurs, and makes the silicon steel sheet of projection contact with clamping element, thereby makes clamping element charged, and this has affected the effect of clamp insulation to a great extent.
The utility model content
The purpose of this utility model: unreasonable and bring the vertical rubbing of the stressed generation of silicon steel sheet on iron core top layer to make the silicon steel sheet of projection contact the problem that causes clamping element charged with clamping element in order to solve existing oil-filled transformer clamp insulation structural design, and proposition oil-filled transformer clamp insulation.
The technical solution of the utility model: oil-filled transformer clamp insulation, comprise web, backing plate and installing hole, described backing plate is provided with protuberance, and described protuberance and backing plate are one-body molded, and the distribution of described protuberance is consistent with the distribution of iron core inside transformer surface silicon steel disc.
Oil-filled transformer clamp insulation of the present utility model, during use, web is connected with clamping element by installing hole, the silicon steel sheet on protuberance and transformer top layer is fitted, in when, under the active force of silicon steel sheet at clamping element, vertical rubbing occuring when, the protuberance that fits on silicon steel sheet will be together protruding with silicon steel sheet, and protuberance directly contacts with clamping element, thereby has played certain insulating effect.
Further, the width of described protuberance equates with the width of iron core inside transformer surface silicon steel disc.
The width of protuberance equates with the width of iron core inside transformer surface silicon steel disc, therefore the unnecessary waste that can avoid wide protuberance to cause on the one hand can be avoided on the other hand narrow protuberance to cause silicon steel sheet and clamping element generating unit to divide to contact and make clamping element charged.
Description of drawings
Fig. 1 is the structural representation of oil-filled transformer clamp insulation in prior art;
Fig. 2 is the structural representation of the embodiment of the utility model oil-filled transformer clamp insulation.
Embodiment
As shown in Figure 2, the utility model provides the oil-filled transformer clamp insulation, comprises web 1, backing plate 2 and installing hole 3, backing plate 2 is provided with protuberance 4, protuberance 4 is one-body molded with backing plate 2,, the width of protuberance 4 equates with the width of iron core inside transformer surface silicon steel disc.
In the present embodiment, arranging of protuberance 4 is very crucial, and it has played insulating effect to the silicon steel sheet that is positioned at clamping element below.Insulation can be realized by backing plate 2 in silicon steel sheet position for the clamping element clamping.In fact, the distribution of protuberance 4 is consistent with the distribution of iron core inside transformer surface silicon steel disc, like this, not only can both bring into play good insulating effect for each iron core in transformer, and can save the material between iron core, reduces production costs.
In addition, the width of protuberance 4 equates with the width of iron core inside transformer surface silicon steel disc, and wide if protuberance 4 arranges on the one hand, unnecessary part can not brought into play any effect, can cause unnecessary waste on the contrary; On the other hand, narrow if protuberance 4 arranges, the position that does not contact with silicon steel sheet still can directly contact with clamping element when vertical rubbing occurs, thereby makes clamping element charged, affects insulation effect.
During use, web 1 is connected with clamping element by installing hole 3, protuberance 4 and the silicon steel sheet on transformer top layer are fitted, in when, under the active force of silicon steel sheet at clamping element, vertical rubbing occuring when, the protuberance 4 that fits on silicon steel sheet will be together protruding with silicon steel sheet, protuberance 4 directly contacts with clamping element, thereby has played certain insulating effect.
Above-described is only preferred implementation of the present utility model, should be understood that for a person skilled in the art, under the prerequisite that does not break away from the utility model structure, can also make some distortion and improvement, these can not affect effect and practical applicability that the utility model is implemented.
Claims (2)
1. oil-filled transformer clamp insulation, comprise web (1), backing plate (2) and installing hole (3), it is characterized in that: described backing plate (2) is provided with protuberance (4), described protuberance (4) is one-body molded with backing plate (2), and the distribution of described protuberance (4) is consistent with the distribution of iron core inside transformer surface silicon steel disc.
2. oil-filled transformer clamp insulation according to claim 1, it is characterized in that: the width of described protuberance (4) equates with the width of iron core inside transformer surface silicon steel disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585555 CN202996523U (en) | 2012-11-08 | 2012-11-08 | Clamping piece insulation for oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585555 CN202996523U (en) | 2012-11-08 | 2012-11-08 | Clamping piece insulation for oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996523U true CN202996523U (en) | 2013-06-12 |
Family
ID=48567668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220585555 Expired - Fee Related CN202996523U (en) | 2012-11-08 | 2012-11-08 | Clamping piece insulation for oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202996523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157414A (en) * | 2014-08-26 | 2014-11-19 | 镇江天力变压器有限公司 | Clamp insulating structure of dry-type transformer |
-
2012
- 2012-11-08 CN CN 201220585555 patent/CN202996523U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157414A (en) * | 2014-08-26 | 2014-11-19 | 镇江天力变压器有限公司 | Clamp insulating structure of dry-type transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131108 |