CN202373452U - Cast transformer wire winding low-voltage coil starting head structure - Google Patents
Cast transformer wire winding low-voltage coil starting head structure Download PDFInfo
- Publication number
- CN202373452U CN202373452U CN2011204529603U CN201120452960U CN202373452U CN 202373452 U CN202373452 U CN 202373452U CN 2011204529603 U CN2011204529603 U CN 2011204529603U CN 201120452960 U CN201120452960 U CN 201120452960U CN 202373452 U CN202373452 U CN 202373452U
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- copper bar
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- cast
- voltage coil
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Abstract
The utility model discloses a cast transformer wire winding low-voltage coil starting head structure. The structure comprises a coil, epoxy resin, as well as a starting copper bar and an ending copper bar, wherein the starting copper bar is welded with the wire starting winding head of the coil; the ending copper bar is welded with the wire end of the coil; and the epoxy resin is cast at the periphery of the starting copper bar and the ending copper bar. The utility model solves the problems of the prior art that wire wound low-voltage coils all adopt starting head structures led out by the winding, so that an insulation bandaging process is inconvenient, the insulation distance is not easy to control, and failures easily occur; the staring and ending copper bars are welded when winding the coil, and are formed in an vacuum cast manner with a mould, so that the coherence of the coil exposed head is good, the insulation density is high, the reliability is high, a drying process is not required after assembling, and the cost is saved.
Description
Technical field
The utility model has related to a kind of cast-type transformer wire coiling low-voltage coil leading-out end structure, belongs to the transformer technology field.
Background technology
At present, when producing transformer, for low-voltage coil that can not or be inconvenient to use the foil coiling; All adopt the wire rod coiling; As shown in Figure 1, all be the leading-out end structure that adopts this line 7 directly to draw with the low-voltage coil of wire rod coiling, welding lead terminal board externally after the assembling.This leading-out end structure outward appearance is comparatively ugly, and also trouble is handled in the insulation wrapping, and insulation distance also is difficult to control, breaks down easily.Protection during welding, cooling measure are also more hard to manage, the coil epoxy is burnt or ftracture, and welding slag or other foreign matters are fallen into also not easy to clean.Go damp drying also pretty troublesome after the welding.
The utility model content
The utility model technical problem to be solved provides a kind of cast-type transformer wire coiling low-voltage coil leading-out end structure, makes that the low-voltage coil of wire rod coiling is specious, and technology is simple and safe and reliable, and is also cost-saved.
In order to solve the problems of the technologies described above; The technical scheme that the utility model adopted is: a kind of cast-type transformer wire coiling low-voltage coil leading-out end structure; Comprise coil, epoxy resin, also comprise the copper bar of starting, an end copper bar, the said copper bar of starting rises around head with the wire rod of said coil and welds mutually; A said end copper bar welds with the wire rod end head of said coil mutually, and said poured with epoxy resin is in the periphery of said start a copper bar and an end copper bar.
Aforesaid a kind of cast-type transformer wire coiling low-voltage coil leading-out end structure, it is characterized in that: said wire rod is started and before coil winding, is welded mutually with the said copper bar of starting.
Aforesaid a kind of cast-type transformer wire coiling low-voltage coil leading-out end structure is characterized in that: said wire rod end head adopts quarter bend to draw the back and welds mutually with a said end copper bar.
Aforesaid a kind of cast-type transformer wire coiling low-voltage coil leading-out end structure is characterized in that: the said copper bar of starting is in aggregates with an end copper bar and coil cast.
The beneficial effect of the utility model is:
Just will rise during 1, through coil winding, an end copper bar weld, and with mould vacuum pouring moulding, makes the high conformity at winding protruding head position, dielectric strength is high, sound construction, good looking appearance, technology is simple, safety, reliability height.
2, the coil itself before the cast just needs dried, thereby through adopting above technical scheme, the drying process after need not assembling has been practiced thrift cost, has shortened the production duration.
Description of drawings
Fig. 1 is existing cast-type wire rod coiling low-voltage coil structural representation;
Fig. 2 is the cast-type wire rod coiling low-voltage coil structural representation of the utility model;
Fig. 3 is the cast-type wire rod coiling low-voltage coil leading-out end part-structure sketch map of the utility model.
Embodiment
To combine Figure of description below, the utility model will be further described.
As shown in Figures 2 and 3, a kind of cast-type transformer wire coiling low-voltage coil leading-out end structure comprises coil 6, epoxy resin 3; Also comprise the copper bar 1 of starting, an end copper bar 2, make corresponding die cavity, and the position of on core rod, starting mills certain thickness (thickness by the copper bar 1 of starting is fixed) at the leading-out end position of mould; Be used for placing the copper bar 1 of starting; Wire rod rise around 4 with start copper bar 1 welding and bandaging, filled up grid, then coiling 6 on request.After coil 6 coilings are good; Draw at the wire rod of coil 6 end 5, welds with an end copper bar 2, and end head insulation wrapping and reinforced insulation are separated; The coil of handling well is adorned mould, preliminary drying drying, vacuum pouring, curing, the demoulding; Come out the rising of coil, end head of the demoulding is copper bar and draws, and carries out the copper bar connection on request during follow-up assembling and gets final product operations such as the welding after need not assembling, drying.
The wire rod of coil 6 is started and 4 before coil winding, is welded with the copper bar 1 of starting, and wire rod is started 4 contact more fully with the copper bar 1 of starting, and insulation processing is more convenient, reliable.
Last 5 in the wire rod of coil 6 adopts quarter bends to draw the back and welds with an end copper bar 2, and it is more abundant that last 5 in wire rod is contacted with an end copper bar 2, and insulation processing is more convenient, reliable.
In sum; A kind of cast-type transformer wire coiling low-voltage coil leading-out end structure that the utility model provides; Just will rise during through coil winding, an end copper bar weld, and with mould vacuum pouring moulding, makes that high conformity, dielectric strength height, the reliability at winding protruding head position are high; Drying process after need not assembling has been practiced thrift cost.
More than show and described basic principle, principal character and the advantage of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range by appending claims and equivalent circle thereof.
Claims (4)
1. cast-type transformer wire coiling low-voltage coil leading-out end structure; Comprise coil (6), epoxy resin (3); It is characterized in that: also comprise the copper bar of starting (1), an end copper bar (2); The said copper bar of starting (1) rises around head (4) with the wire rod of said coil (6) and welds mutually, and a said end copper bar (2) welds with the wire rod end head (5) of said coil (6) mutually, and said epoxy resin (3) is cast in the periphery of a said copper bar of starting (1) and an end copper bar (2).
2. a kind of cast-type transformer wire coiling low-voltage coil leading-out end structure according to claim 1 is characterized in that: said wire rod start (4) before coil winding, weld mutually with the said copper bar of starting (1).
3. a kind of cast-type transformer wire coiling low-voltage coil leading-out end structure according to claim 1 and 2 is characterized in that: said wire rod end head (5) adopts quarter bend to draw the back and welds mutually with a said end copper bar (2).
4. a kind of cast-type transformer wire coiling low-voltage coil leading-out end structure according to claim 3 is characterized in that: the said copper bar of starting (1) is in aggregates with an end copper bar (2) and coil (6) cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204529603U CN202373452U (en) | 2011-11-16 | 2011-11-16 | Cast transformer wire winding low-voltage coil starting head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204529603U CN202373452U (en) | 2011-11-16 | 2011-11-16 | Cast transformer wire winding low-voltage coil starting head structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373452U true CN202373452U (en) | 2012-08-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204529603U Expired - Fee Related CN202373452U (en) | 2011-11-16 | 2011-11-16 | Cast transformer wire winding low-voltage coil starting head structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403101A (en) * | 2011-11-16 | 2012-04-04 | 昆山市特种变压器制造有限公司 | Pouring-type transformer wire wound low-voltage coil leading-out head structure |
| CN103779067A (en) * | 2014-02-20 | 2014-05-07 | 江西特种变压器厂 | Method for manufacturing multi-section cylindrical cast coil wound with round winding wire |
-
2011
- 2011-11-16 CN CN2011204529603U patent/CN202373452U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403101A (en) * | 2011-11-16 | 2012-04-04 | 昆山市特种变压器制造有限公司 | Pouring-type transformer wire wound low-voltage coil leading-out head structure |
| CN103779067A (en) * | 2014-02-20 | 2014-05-07 | 江西特种变压器厂 | Method for manufacturing multi-section cylindrical cast coil wound with round winding wire |
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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: 20120808 Termination date: 20151116 |