CN201336202Y - Connection structure for tank cover and oil tank of transformer - Google Patents
Connection structure for tank cover and oil tank of transformer Download PDFInfo
- Publication number
- CN201336202Y CN201336202Y CNU200820169803XU CN200820169803U CN201336202Y CN 201336202 Y CN201336202 Y CN 201336202Y CN U200820169803X U CNU200820169803X U CN U200820169803XU CN 200820169803 U CN200820169803 U CN 200820169803U CN 201336202 Y CN201336202 Y CN 201336202Y
- Authority
- CN
- China
- Prior art keywords
- case lid
- tank
- case
- fuel tank
- transformer
- 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 relates to a connection structure for a tank cover and an oil tank of a transformer. The connection structure comprises the oil tank and the tank cover, wherein the top part of the wall of the oil tank extends outside to form a tank edge, a sealing face in contact with the upper surface of the tank edge and the tank cover is arranged between the upper surface of the tank edge and the tank cover. The connection structure is characterized in that the periphery of the sealing face formed by the tank edge and the tank cover is provided with a welding body which is used for connecting the tank edge and the tank cover into one in a sealing way. The connection structure of the tank edge and the tank cover adopts the welding connection structure and omits a sealing strip originally arranged on the sealing face and the process of drilling on the tank cover; in addition, without a bolt and a nut for fixing, the material and time are saved and the sealing effect is good.
Description
[technical field]
The utility model belongs to a kind of oil immersion-type distribution transformer, especially relates to the syndeton of a kind of oil immersion-type distribution transformer case lid and fuel tank.
[background technology]
The structure of oil immersion-type distribution transformer comprises fuel tank and case lid, and the device body is fixed in the fuel tank, and the high and low pressure coil windings lead-in wire of device body is drawn by the porcelain bushing that is installed on the case lid.Fuel tank by upper tank along being tightly connected with case lid, during connection, case along with the sealing surface of case lid on place diaphragm seal, utilize the fastening force of screw bolt and nut to realize sealing.There is following deficiency in this syndeton: case lid and case are fixed for screw bolt and nut along necessary supporting boring, therefore take material; The aging back influence of diaphragm seal oil is unfavorable for the long-term safety operation of transformer.
[summary of the invention]
For overcoming the prior art above shortcomings, the utility model aims to provide a kind of transformer case lid and fuel tank syndeton, after adopting this syndeton, the oil seepage phenomena of help strengthening sealing property, eliminating fuel tank, and the aging speed that slows down transformer oil.
For achieving the above object, the utility model has adopted following technical scheme:
This transformer case lid and fuel tank syndeton, comprise fuel tank and case lid thereof, after stretching out, the top of oil tank wall forms the case edge, has a sealing surface that is in contact with one another between the last plane on case edge and the case lid, it is characterized in that: fuel tank case edge has the welding body with the periphery of the described sealing surface that case lid forms, and this welding body makes the case edge become whole with the case lid sealed attachment.
Aforesaid a kind of transformer case lid and fuel tank syndeton, it is characterized in that: described case lid is rectangular, rectangle case lid level is shelved on by described case along on the horizontal pane that surrounds, the case lid end face contracts in the horizontal pane end face, form a levelling bench between two end faces, the welding body is on the described levelling bench.
Aforesaid a kind of transformer case lid and fuel tank syndeton is characterized in that: the width of described levelling bench is 15mm.
Beneficial effect: after the fuel tank case adopts the welding draw bail along the draw bail with case lid, omitted the diaphragm seal that originally is arranged on the sealing surface, and at case along the technology of holing on, the case lid, and fix without screw bolt and nut, economize the material good sealing effect that saves time.
[description of drawings]
Fig. 1 is the broken section structural representation of an embodiment of the utility model.
Among the figure: case lid 1, case be along 2, fuel tank 3, device body 4, fuel tank inner chamber 5, pressure valve 6, porcelain bushing 7, switch 8, welding body 9.
[embodiment]
Referring to Fig. 1.Case along 2 with the tank wall of fuel tank 3 be single piece, fixed installation device body 4 in the fuel tank inner chamber 5.Porcelain bushing 7, pressure valve 6 and switch 8 etc. are installed on the case lid 1.Fuel tank 3 and case lid 1 thereof, the top of the oil tank wall back that stretches out forms case along 2, case along 2 last plane and case lid 1 between have a sealing surface that is in contact with one another.Fuel tank .3 case has welding body 9 along the periphery of the 2 described sealing surfaces that form with case lid 1, and this welding body 9 makes case become integral body with case lid 1 sealed attachment along 2.
Described case lid 1 is rectangular, and rectangle case lid 1 level is shelved on by described case along on 2 horizontal pane that surround, and case lid 1 end face contracts in the horizontal pane end face, forms a levelling bench between two end faces, and welding body 9 is on the described levelling bench.
The width of described levelling bench is 15mm.
Claims (3)
1, a kind of transformer case lid and fuel tank syndeton, comprise fuel tank (3) and case lid (1) thereof, the top of oil tank wall stretches out back formation case along (2), has a sealing surface that is in contact with one another between the last plane on case edge (2) and the case lid (1), it is characterized in that: fuel tank (3) case has welding body (9) along the periphery of the described sealing surface that (2) and case lid (1) form, and this welding body (9) makes case become whole with case lid (1) sealed attachment along (2).
2, a kind of transformer case lid as claimed in claim 1 and fuel tank syndeton, it is characterized in that: described case lid (1) is rectangular, rectangle case lid (1) level is shelved on the horizontal pane that is surrounded by described case edge (2), case lid (1) end face contracts in the horizontal pane end face, form a levelling bench between two end faces, welding body (9) is on the described levelling bench.
3, a kind of transformer case lid as claimed in claim 2 and fuel tank syndeton, it is characterized in that: the width of described levelling bench is 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820169803XU CN201336202Y (en) | 2008-12-05 | 2008-12-05 | Connection structure for tank cover and oil tank of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820169803XU CN201336202Y (en) | 2008-12-05 | 2008-12-05 | Connection structure for tank cover and oil tank of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201336202Y true CN201336202Y (en) | 2009-10-28 |
Family
ID=41287862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820169803XU Expired - Fee Related CN201336202Y (en) | 2008-12-05 | 2008-12-05 | Connection structure for tank cover and oil tank of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201336202Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246300A (en) * | 2015-10-30 | 2016-01-13 | 重庆帕特龙智通电子科技有限公司 | Large-power electronic device heat radiation structure |
-
2008
- 2008-12-05 CN CNU200820169803XU patent/CN201336202Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246300A (en) * | 2015-10-30 | 2016-01-13 | 重庆帕特龙智通电子科技有限公司 | Large-power electronic device heat radiation structure |
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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 |
Granted publication date: 20091028 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |