CN201207605Y - Electricity generator stator coil preventing gap - Google Patents
Electricity generator stator coil preventing gap Download PDFInfo
- Publication number
- CN201207605Y CN201207605Y CNU2008200586713U CN200820058671U CN201207605Y CN 201207605 Y CN201207605 Y CN 201207605Y CN U2008200586713 U CNU2008200586713 U CN U2008200586713U CN 200820058671 U CN200820058671 U CN 200820058671U CN 201207605 Y CN201207605 Y CN 201207605Y
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- CN
- China
- Prior art keywords
- coil
- stator coil
- electricity generator
- generator stator
- utility
- 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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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model relates to a generator unit stator coil for preventing gaps, which comprises a main insulator and a gelatinizing coil, and is characterized in that: an interface belt is arranged between the main insulator and the gelatinizing coil. The interface belt is a piece of fiber cloth dip-coated by semi-solid insulating binder. The utility model has the advantages that the manufactured coil is more compact, the dielectric loss is less, the gap rate is reduced, the performance is further enhanced, and the ageing resistance and the service life of the coil are improved and extended.
Description
Technical field
The utility model relates to a kind of preventing and sends out empty electricity generator stator coil, can be widely used in all kinds of generators, belongs to electricity generator stator coil manufacturing technology field.
Background technology
Electricity generator stator coil is with the gel of conduction copper cash together, be called gelled coil, at lead outside half-stack package mica tape several layers, this mica tape is at present domestic two types, a kind of is many glue mica tapes, and a kind of is the low resin mica tape impregnating resin, goes into mould high temperature after half lap is wrapped and solidifies through certain hour, metal core wire is a current-carrying part, and solidifying the back mica layer is main insulation.Owing to copper cash and the mica equal reason of the back coefficient of expansion of being heated, be easy to generate between main insulation and the gelled coil after the mold pressing and send out phenomenon empty, cause that dielectric loss is bigger than normal, finally cause coil to be scrapped.
Summary of the invention
The purpose of this utility model provides a kind of empty electricity generator stator coil that prevents to send out.
For realizing above purpose, the technical solution of the utility model provides a kind of preventing and sends out empty electricity generator stator coil, comprises main insulation and gelled coil, it is characterized in that, is provided with interface zone between main insulation and gelled coil.
Described interface zone is the fiber cloth of the insulating adhesive dip-coating of semi-solid preparation.
The utility model adds one deck interface zone between main insulation and gelled coil, this interface zone is made after by the fabric gluing, the insulating adhesive dip-coating that is generally semi-solid preparation is on fiber cloth, after the stator coil conductor part is molded into gelled coil, thin or close winding parcel one deck interface zone on the whole surface of gelled coil, and then the half-stack package mica tape is a main insulation on interface zone, interface zone more closely forms a whole main insulation and gelled coil, reaches to reduce the purpose that electricity generator stator coil main insulation is sent out sky.
The utility model has the advantages that produced coil is finer and close, dielectric loss is littler, reduces to send out empty rate, and performance further gets a promotion, thus raising coil ageing-resistant performance and service life.
Description of drawings
Fig. 1 is a kind of electricity generator stator coil structural representation that prevents to send out sky.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, be a kind of electricity generator stator coil structural representation that prevents to send out sky, described a kind of electricity generator stator coil of sending out sky that prevents is made up of main insulation 1, interface zone 2 and gelled coil 3.
Some electromagnetic wires, it is conductor part, these electromagnetic wires all have thin insulating barrier outward, after the transposition braiding, between each row's electromagnetic wire, be lined with the insulating material that contains the semi-solid preparation resin, put into the high temperature mould through certain pressure, temperature and time, this coil promptly has been made into gelled coil 3, and it is used to be mainly conduction.
Twine one deck interface zone 2 at gelled coil 3 outer surfaces then, thin or close, even half-stack package one deck or several layers, this interface zone 2 is the fiber cloth of the insulating adhesive dip-coating of semi-solid preparation, beginning half-stack package several layers mica tape in interface zone 2 outsides at last is main insulation 1, go into behind the mould under uniform temperature and pressure, form through solidifying behind the some hrs.
It is 0.3% that the utility model sends out rate empty; Send out rate 1.4% empty and compare with original, reduced by 1.1%.Cost according to the stator coil of every 300MW and 600MW is 1.5 ten thousand yuan of calculating, can save 650,000 yuans.
Claims (2)
1. one kind prevents to send out empty electricity generator stator coil, comprises main insulation (1) and gelled coil (3), it is characterized in that, is provided with interface zone (2) between main insulation (1) and gelled coil (3).
2. a kind of preventing according to claim 1 sent out empty electricity generator stator coil, it is characterized in that described interface zone (2) is the fiber cloth of the insulating adhesive dip-coating of semi-solid preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200586713U CN201207605Y (en) | 2008-05-20 | 2008-05-20 | Electricity generator stator coil preventing gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200586713U CN201207605Y (en) | 2008-05-20 | 2008-05-20 | Electricity generator stator coil preventing gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201207605Y true CN201207605Y (en) | 2009-03-11 |
Family
ID=40466661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200586713U Expired - Lifetime CN201207605Y (en) | 2008-05-20 | 2008-05-20 | Electricity generator stator coil preventing gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201207605Y (en) |
-
2008
- 2008-05-20 CN CNU2008200586713U patent/CN201207605Y/en not_active Expired - Lifetime
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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: 20090311 |
|
| CX01 | Expiry of patent term |