CN203812697U - Pressing nail bowl structure of high-voltage transformer - Google Patents
Pressing nail bowl structure of high-voltage transformer Download PDFInfo
- Publication number
- CN203812697U CN203812697U CN201420085710.4U CN201420085710U CN203812697U CN 203812697 U CN203812697 U CN 203812697U CN 201420085710 U CN201420085710 U CN 201420085710U CN 203812697 U CN203812697 U CN 203812697U
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- CN
- China
- Prior art keywords
- pressing
- bowl
- transformer
- pressing nail
- nail
- 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 pressing nail bowl structure of a high-voltage transformer. The pressing nail bowl structure of the high-voltage transformer is characterized in that a framework is formed through a clamping piece and an iron core in the body of the transformer, a coil sleeves the iron core, a connecting plate is welded to the clamping piece, a nut is welded to the connecting plate, a pressing nail is screwed in the nut, a pressing plate is placed on the upper end of the coil, a pressing nail bowl is placed on the pressing plate, and the lower end of the pressing nail is pressed in the pressing nail bowl so as to tightly press the coil; a crossed oil flowing groove is formed in the lower part of the pressing nail bowl; the oil flowing groove is in contact with the pressing plate, so that an oil flowing channel is formed between the pressing nail bowl and the pressing plate, air bubbles are discharged along with the flowing flow, and influence from electric discharge of the air bubbles to partial discharge of the transformer is avoided; the pressing nail bowl is made of a stainless steel material, so that zinc plating is unnecessary, high mechanical intensity is achieved, no zinc slag is produced under a pressure, cleanness of the transformer body is ensured, and reliability of normal operation of the transformer is improved.
Description
Technical field
The utility model belongs to field transformer, relates to a kind of high voltage transformer nail pressing bowl structure.
Background technology
Present stage, large-scale high voltage transformer is all to adopt nail pressing structure to compress winding, but this structure, between nail pressing bowl and pressing plate, easily form drum, because pressure between nail pressing bowl and pressing plate is large, transformer oil cannot circulate, form " extremely " oily district, bubble is also difficult to be discharged from, and causes the inner gassing electric discharge of transformer, and the office of causing amplifies; Nail pressing bowl is galvanized part, in the time being subject to the pressure of nail pressing, zinc coat is the broken metal fragment that forms easily, and these metal fragments are difficult to be cleaned, can not ensure the cleannes of device body, in device body, not only affect if enter that office puts but also the normal operation of transformer is had to very large potential safety hazard.
Summary of the invention
The utility model is in order to make up the deficiencies in the prior art, and a kind of simple in structure, easy to use, high voltage transformer nail pressing bowl structure of avoiding waste is provided.
The utility model is achieved by the following technical solution:
High voltage transformer nail pressing bowl structure of the present utility model, it is characterized in that: in transformer body, form skeleton by folder and iron core, on iron core, cover has coil, on folder, be welded with connecting plate, on connecting plate, be welded with nut, in nut, be rotary with nail pressing, coil upper end is placed with pressing plate, on pressing plate, be placed with nail pressing bowl, nail pressing lower end is pressed in nail pressing bowl, thereby plays the effect of coil pressing; " ten " word stream oil groove is driven in bottom at nail pressing bowl, and stream oil groove contacts with pressing plate, makes to form oil flow channel between nail pressing bowl and pressing plate, and bubble, along with oily stream is discharged from, has avoided the office that affects transformer because of bubble electric discharge to put; Nail pressing bowl uses stainless steel, does not need zinc-platedly, and mechanical strength is high, is stressed and can not produces broken zinc bits, has ensured that the cleannes of device body have improved the normal reliability of operation of transformer.
The beneficial effects of the utility model are, simple in structure, easy to use, avoid waste, for low office put, nail pressing bowl structure in EHV transformer, make to form oil flow channel between nail pressing bowl and pressing plate, bubble, along with oily stream is discharged from, has avoided the office that affects transformer because of bubble electric discharge to put.Nail pressing bowl does not need zinc-plated, has ensured the cleannes of device body, has improved the normal reliability of operation of transformer, has simplified production process.
Brief description of the drawings
Fig. 1, Fig. 2 are respectively front view of the present utility model, vertical view schematic diagram.Fig. 3, Fig. 4 are respectively front view, the vertical view schematic diagram of traditional structure.
In figure, 1 folder, 2 nail pressings, 3 nail pressing bowls, 4 pressing plates, 5 coils, 6 " ten " font stream oil grooves, 7 bubbles, 8 connecting plates, 9 nuts.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.
High voltage transformer nail pressing bowl structure of the present utility model, in transformer body, form skeleton by folder 1 and iron core, on iron core, cover has coil 5, on folder, be welded with connecting plate 8, on connecting plate, be welded with nut 9, in nut, be rotary with nail pressing 2, coil upper end is placed with pressing plate 4, on pressing plate, be placed with nail pressing bowl 3, nail pressing lower end is pressed in nail pressing bowl, thereby plays the effect of coil pressing; " ten " word stream oil groove 6 is driven in bottom at nail pressing bowl, and stream oil groove contacts with pressing plate, makes to form oil flow channel between nail pressing bowl and pressing plate, and bubble, along with oily stream is discharged from, has avoided the office that affects transformer because of bubble electric discharge to put; Nail pressing bowl uses stainless steel, does not need zinc-platedly, and mechanical strength is high, is stressed and can not produces broken zinc bits, has ensured that the cleannes of device body have improved the normal reliability of operation of transformer.
Claims (1)
1. a high voltage transformer nail pressing bowl new construction, it is characterized in that: in transformer body, form skeleton by folder and iron core, on iron core, cover has coil, on folder, be welded with connecting plate, on connecting plate, be welded with nut, be rotary with nail pressing in nut, coil upper end is placed with pressing plate, on pressing plate, be placed with nail pressing bowl, nail pressing lower end is pressed in nail pressing bowl; " ten " word stream oil groove is driven in bottom at nail pressing bowl, and stream oil groove contacts with pressing plate; Nail pressing bowl uses stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085710.4U CN203812697U (en) | 2014-02-27 | 2014-02-27 | Pressing nail bowl structure of high-voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085710.4U CN203812697U (en) | 2014-02-27 | 2014-02-27 | Pressing nail bowl structure of high-voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812697U true CN203812697U (en) | 2014-09-03 |
Family
ID=51451417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085710.4U Expired - Fee Related CN203812697U (en) | 2014-02-27 | 2014-02-27 | Pressing nail bowl structure of high-voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895308A (en) * | 2016-06-24 | 2016-08-24 | 国家电网公司 | Locating bowl with leaking hole and forming method of locating bowl |
-
2014
- 2014-02-27 CN CN201420085710.4U patent/CN203812697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895308A (en) * | 2016-06-24 | 2016-08-24 | 国家电网公司 | Locating bowl with leaking hole and forming method of locating bowl |
| CN105895308B (en) * | 2016-06-24 | 2017-09-19 | 国家电网公司 | Positioning bowl and its forming method with small opening |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20170227 |