CN200972815Y - Formed case cover of power transformer - Google Patents
Formed case cover of power transformer Download PDFInfo
- Publication number
- CN200972815Y CN200972815Y CN 200620139686 CN200620139686U CN200972815Y CN 200972815 Y CN200972815 Y CN 200972815Y CN 200620139686 CN200620139686 CN 200620139686 CN 200620139686 U CN200620139686 U CN 200620139686U CN 200972815 Y CN200972815 Y CN 200972815Y
- Authority
- CN
- China
- Prior art keywords
- case cover
- case lid
- utility
- model
- oil tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a profiled case cover for an electric transformer. The utility model is to emboss all the case cover holes that are communicated with the inside of the oil tank of an electric transformer so as to form a raised platform around the case cover holes, and to bend the edge of case cover. The benefits are that the profile processing forms corresponding raised platforms on the cover plate, and thus greatly improves the strength of the case cover, and makes the case cover more resistant to deformation; the raised platforms formed by the profile processing on the case cover prevents water from staying in the tight area, and make it impossible for water to enter the oil tank; and the bending processing to the perimeter of the case cover improves the strength of the case cover, and prevents the perimeter of the case cover from deforming when strained by bolts. Moreover, the outer edge of the case cover just covers the flange of the oil tank, and thus improves the visual quality of the product while enhancing the sealing performance.
Description
Technical field
The utility model relates to a kind of parts of power transformer, specifically relates to a kind of power transformer moulding case lid.
Background technology
At present, the power transformer case lid generally adopts plate armature, by bolt case lid is fastened on the fuel tank flange, and makes between case lid and the fuel tank and seal.The case lid of this structure is often because the influence of factors such as intensity and unbalance stress, be easy to generate local deformation, make the case lid periphery produce wavy distortion, and the whole slab construction that adopts easily produces ponding on case lid, after the case lid hole sealing gasket that is communicated with in the fuel tank is aging, water just infiltrates transformer inside easily, influences the normal operation of transformer.
Summary of the invention
The utility model mainly is to solve above-mentioned existing in prior technology technical problem, and a kind of power transformer moulding case lid is provided.
Technical solutions of the utility model are such: to all case lid holes that is communicated with fuel tank internal, carry out the belling processing and forming, the case lid hole formed on the boss, and to flanging processing around the outer.The benefit of bringing like this has: the first, through processing and forming, on panel, form corresponding boss, and improve the intensity of case lid greatly, strengthened the non-deformability of case lid; The second, because case lid aperture overmolding is processed to form boss, makes sealing area not have occluded water and exist, avoided water to infiltrate the possibility of fuel tank; The 3rd, through flanging processing, improve the intensity of case lid around the case lid, prevent from when bolt strain, to produce around the case lid and be out of shape, and the outer covers the fuel tank flange, both improved sealing property, improved the presentation quality of product again.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the A-A sectional structure schematic diagram that amplifies among Fig. 1.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: referring to Fig. 1, the utility model is downward flanging 2 to be set all around in body 1 outer, is arranged on the boss 4 of body 1 with the case lid hole 3 that is communicated with in the fuel tank.
At last, should be pointed out that above embodiment only is the more representational example of the utility model.Obviously, the utility model is not limited to the foregoing description, and many distortion can also be arranged.Every foundation technical spirit of the present utility model all should be thought to belong to protection range of the present utility model to any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. a power transformer moulding case lid comprises body, it is characterized in that around described body (1) outer downward flanging (2) being set, and is arranged on the boss (4) of body (1) with the case lid hole (3) that is communicated with in the fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620139686 CN200972815Y (en) | 2006-11-03 | 2006-11-03 | Formed case cover of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620139686 CN200972815Y (en) | 2006-11-03 | 2006-11-03 | Formed case cover of power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200972815Y true CN200972815Y (en) | 2007-11-07 |
Family
ID=38884069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620139686 Expired - Fee Related CN200972815Y (en) | 2006-11-03 | 2006-11-03 | Formed case cover of power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200972815Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969122A (en) * | 2012-11-19 | 2013-03-13 | 江苏宏安变压器有限公司 | Flanged oil tank cover and hot-spot temperature online monitoring method thereof |
| CN105895318A (en) * | 2016-06-29 | 2016-08-24 | 衢州杭甬变压器有限公司 | Tank cover of oil-immersed transformer oil tank |
| CN106847473A (en) * | 2017-01-06 | 2017-06-13 | 江苏亚威变压器有限公司 | A kind of oil-filled transformer |
-
2006
- 2006-11-03 CN CN 200620139686 patent/CN200972815Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969122A (en) * | 2012-11-19 | 2013-03-13 | 江苏宏安变压器有限公司 | Flanged oil tank cover and hot-spot temperature online monitoring method thereof |
| CN105895318A (en) * | 2016-06-29 | 2016-08-24 | 衢州杭甬变压器有限公司 | Tank cover of oil-immersed transformer oil tank |
| CN106847473A (en) * | 2017-01-06 | 2017-06-13 | 江苏亚威变压器有限公司 | A kind of oil-filled 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: 20071107 Termination date: 20091203 |