CN201886881U - Epoxy resin pouring shielding barrel of transformer - Google Patents
Epoxy resin pouring shielding barrel of transformer Download PDFInfo
- Publication number
- CN201886881U CN201886881U CN2010205889940U CN201020588994U CN201886881U CN 201886881 U CN201886881 U CN 201886881U CN 2010205889940 U CN2010205889940 U CN 2010205889940U CN 201020588994 U CN201020588994 U CN 201020588994U CN 201886881 U CN201886881 U CN 201886881U
- Authority
- CN
- China
- Prior art keywords
- epoxy resin
- shielding
- transformer
- shielding cylinder
- shielding barrel
- 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 - Lifetime
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Abstract
The utility model relates to an epoxy resin pouring shielding barrel of a transformer, and belongs to the technical field of dry type transformers. The epoxy resin pouring shielding barrel of a transformer is characterized in that the epoxy resin pouring shielding barrel is a pouring type shielding barrel-shaped structure, and a grounded shield in the shielding barrel consists of a plurality of opening type metal bands with winding structures. The epoxy resin pouring shielding barrel has the advantages of simple structure, reliable performances, high insulation and voltage resistance, eddy loss reduction, fine radiating effect, convenience in operation and assembly, capability of saving manufacturing cost, reliable grounded shielding, safety in operation of the transformer and the like.
Description
Technical field
The utility model belongs to the Dry-Transformer Technology field, particularly relates to a kind of transformer poured with epoxy resin shielding cylinder.
Background technology
At present, the earth shield of existing dry-type transformer all be with one whole with the highly contour metal foil of coil reactance on iron core or coil, reduced the dielectric voltage withstand level and the heat dispersion of dry-type transformer.Solderless wrapped connection ground masking operation difficulty on iron core and coil, technology be difficult to guarantee, the operation of transformer is had potential safety hazard.
Summary of the invention
The utility model provides a kind of transformer poured with epoxy resin shielding cylinder for solving the problem that prior art exists.
The utility model purpose provides a kind of simple in structure, dependable performance, dielectric voltage withstand height, reduce eddy current loss, good heat dissipation effect, operation and easy to assembly, save cost of manufacture, shielding is reliable over the ground, the transformer poured with epoxy resin shielding cylinder of characteristics such as transformer security of operation.
Earth shield of the present utility model is made up of several half opening metal strips, and earth shield on the mould that designs, is carried out vacuum pouring with epoxy resin, forms a cast-type shielding cylinder.The cast shielding cylinder has good insulation performance and thermal level.
The utility model transformer poured with epoxy resin shielding cylinder adopts following technical scheme:
A kind of transformer poured with epoxy resin shielding cylinder is characterized in that: the poured with epoxy resin shielding cylinder is a cast-type shielding tubular construction, and the earth shield in the shielding cylinder is the open type metal tape of several winding structures.
The utility model transformer poured with epoxy resin shielding cylinder can also adopt following technical measures:
Described transformer poured with epoxy resin shielding cylinder is characterized in: cast-type shielding tubular construction is followed successively by insulation in the cast shielding, earth shield and cast shielding external insulation from inside to outside.
Described transformer poured with epoxy resin shielding cylinder is characterized in: the open type metal tape of several winding structures is a half opening formula metal forming.
Described transformer poured with epoxy resin shielding cylinder is characterized in: be welded with on the metal forming and draw copper strips.
Described transformer poured with epoxy resin shielding cylinder is characterized in: the metal forming opening is 4-5mm.
Described transformer poured with epoxy resin shielding cylinder, be characterized in: the metal forming opening is spaced apart 50-80mm.
Advantage that the utlity model has and good effect:
Transformer poured with epoxy resin shielding cylinder, owing to adopted the utility model brand-new technology scheme, compared with prior art, this transformer has following characteristics:
1, earth shield is made up of several half opening metal strips, has reduced the eddy current in the shielding effectively.
2, pour into shielding cylinder after, form the integral body of a rigidity, be convenient to transhipment, operation and assembling, can independently place, need on iron core or coil, not improve the heat radiation level of iron core or coil.
3, shielding cylinder has inside and outside insulation resin, has improved the dielectric voltage withstand level, can effectively reduce the insulation distance with iron core or coil, has saved cost.
The utlity model has simple in structure, dependable performance, the dielectric voltage withstand height reduces eddy current loss, good heat dissipation effect, cost of manufacture is saved in operation and easy to assembly, shielding is reliable over the ground, advantages such as transformer security of operation.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the structural representation of the mask tape metal forming among Fig. 1.
Among the figure, insulation in the 1-cast shielding, 2-earth shield, 3-cast shielding external insulation, 4-draws metal tape, 5-Copper Foil opening, 6-Copper Foil.
Embodiment
For further understanding technology contents of the present utility model, characteristics and effect, enumerate following example now, and conjunction with figs. is described in detail as follows.
Embodiment
With reference to accompanying drawing 1, Fig. 2 and Fig. 3.
A kind of transformer poured with epoxy resin shielding cylinder is cast-type shielding tubular construction, and cast-type shielding tubular construction is followed successively by insulation 1 in the cast shielding, earth shield 2 and cast shielding external insulation 3 from inside to outside.Earth shield 2 in the shielding cylinder is the half opening formula Copper Foil 6 of 2 winding structures, is welded with on the Copper Foil 6 and draws metal tape 4, and metal forming opening 5 is 5mm, and metal forming 6 openings are spaced apart 70mm.
The concrete structure of present embodiment and the course of processing thereof:
Require and overall dimension making cast shielding cylinder mould and earth shield Copper Foil 2 according to design of transformer.Earth shield is by Copper Foil 6 and draw metal tape 4 and be welded.Wherein Copper Foil 6 needs design earth shield Copper Foil opening 5.Single opening size 5mm, opening is spaced apart 70mm.Add man-hour,, earth shield on the mould that designs, is carried out vacuum pouring with epoxy resin, form a cast-type shielding cylinder according to the figure paper size.The cast shielding cylinder has good insulation performance and thermal level.
Claims (6)
1. transformer poured with epoxy resin shielding cylinder is characterized in that: the poured with epoxy resin shielding cylinder is a cast-type shielding tubular construction, and the earth shield in the shielding cylinder is the open type metal tape of several winding structures.
2. according to the described transformer poured with epoxy resin of claim 1 shielding cylinder, it is characterized in that: cast-type shielding tubular construction is followed successively by insulation in the cast shielding, earth shield and cast shielding external insulation from inside to outside.
3. according to the described transformer poured with epoxy resin of claim 1 shielding cylinder, it is characterized in that: the open type metal tape of several winding structures is a half opening formula metal forming.
4. according to the described transformer poured with epoxy resin of claim 3 shielding cylinder, it is characterized in that: be welded with on the metal forming and draw metal tape.
5. according to claim 3 or 4 described transformer poured with epoxy resin shielding cylinders, it is characterized in that: the metal forming opening is 4-5mm.
6. according to the described transformer poured with epoxy resin of claim 5 shielding cylinder, it is characterized in that: the metal forming opening is spaced apart 50-80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205889940U CN201886881U (en) | 2010-11-03 | 2010-11-03 | Epoxy resin pouring shielding barrel of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205889940U CN201886881U (en) | 2010-11-03 | 2010-11-03 | Epoxy resin pouring shielding barrel of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886881U true CN201886881U (en) | 2011-06-29 |
Family
ID=44184429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205889940U Expired - Lifetime CN201886881U (en) | 2010-11-03 | 2010-11-03 | Epoxy resin pouring shielding barrel of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996751A (en) * | 2010-11-03 | 2011-03-30 | 天津市特变电工变压器有限公司 | Epoxy resin pouring shielding cylinder of transformer |
-
2010
- 2010-11-03 CN CN2010205889940U patent/CN201886881U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996751A (en) * | 2010-11-03 | 2011-03-30 | 天津市特变电工变压器有限公司 | Epoxy resin pouring shielding cylinder of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |
|
| CX01 | Expiry of patent term |