CN208298673U - A kind of novel transformer coil - Google Patents
A kind of novel transformer coil Download PDFInfo
- Publication number
- CN208298673U CN208298673U CN201820807570.5U CN201820807570U CN208298673U CN 208298673 U CN208298673 U CN 208298673U CN 201820807570 U CN201820807570 U CN 201820807570U CN 208298673 U CN208298673 U CN 208298673U
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- Prior art keywords
- coil
- transformer
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Abstract
The utility model provides a kind of novel transformer coil；Including the square coil as made of multilayer electromagnetic wire coiling, one layer of insulating tape is equipped between square coil described in adjacent two layers, the insulating tape is expoxy glass screen cloth.The utility model is used in winding protruding head position and is separated each wire with highdensity insulating paper, and winding protruding head position is made to play a very good protection.The utility model makes the production qualification rate of the coil of transformer be increased to 95% by 40%, reduces because production accident causes the increase of production cost, reduces the production cost of transformer very big.Very big facilitation is played to the safe operation of transformer.
Description
Technical field
The utility model relates to transformer coil fields, and in particular, to a kind of novel transformer coil.
Background technique
Coil is the main component of transformer, referred to as the heart of transformer, and the failure of transformer 90% is the failure of coil,
The production technology and quality for resolving coil are that transformer reliability service guarantees, have very big realistic meaning.
Currently, conventional method is to need to be arranged at electromagnetic wire interlayer in the dry-type transformer coil with poured with epoxy resin
Mesh isolation layer, in order to reach performance requirement, the thickness of the mesh isolation layer is usually 2.5mm, and the grid of this 2.5mm thickness is exhausted
Edge layer hardness is big, and radial line is thick.When this coil of coiling, will cause following problems: 1, mesh isolation layer is too thick does not allow pliable, makes
It cannot be fitted on winding mould completely, and the coiling of coil is inconvenient；2, when electromagnetic wire being wound on mesh isolation layer,
Electromagnetic wire and mesh isolation layer phase mutual friction easily cause enamelled wire surface paint film to damage, and lead to coil turn-to-turn short circuit, reduce transformation
The service life of device.
In addition, in the production process of transformer coil, worker can the conducting wire to coil to beat, the works such as bending
The insulation performance of sequence, conducting wire will necessarily be because greatly destroying caused by handling in this way, and very big short circuit current is generated to coil,
Short circuit current is 25 times of rated current or so, and the short-circuit electromagnetic force of generation is square of short circuit current again, in this way will certainly be right
Transformer coil causes very big damage.
Utility model content
For the defects in the prior art, the purpose of the utility model is to provide a kind of novel transformer coils.This is practical
It is novel to be used in winding protruding head position and separated each wire with highdensity insulating tape, play winding protruding head position very well
Protective effect.
One aspect according to the present utility model provides a kind of novel transformer coil, including by multilayer electromagnetic wire coiling
Made of square coil, be equipped with one layer of insulating tape between square coil described in adjacent two layers, the insulating tape is expoxy glass net
Cloth.
Preferably, the end winding insulating tape of the square coil, the utility model are only needed in overhang winding
Insulating tape.
Preferably, the width of the expoxy glass screen cloth is 5cm.
Preferably, the expoxy glass screen cloth with a thickness of 1mm.
Preferably, the expoxy glass screen cloth includes thread layer and weft layers (3), and the thread layer includes disposed in parallel
Top line and lower layer warp yarns, the weft layers are located between top line (1) and lower layer warp yarns (2)；The upper and lower layer warp
Cross arrangement weaves between yarn and weft layers (3).
Compared with prior art, the utility model have it is following the utility model has the advantages that
(1) the utility model is used in winding protruding head position and is separated each wire with highdensity insulating paper, makes coil
Position of lifting one's head plays a very good protection.
(2) the utility model makes the production qualification rate of the coil of transformer be increased to 95% by 40%, reduce because
Production accident causes the increase of production cost, reduces the production cost of transformer very big.The safe operation of transformer is risen
Very big facilitation is arrived.
(3) the expoxy glass grid cloth that the utility model uses is widely used in dry-type transformer, the electricity being poured with filler
On the products such as anti-device, it is arranged between each layer of copper wire of coil, is firmly combined together with the epoxy resin of molded coil,
It is huge electronic when it can prevent pouring piece due to cold-thermal effect and coil sudden short circuit like the steel bar framework in concrete
The cracking of coil external insulation scrim layer caused by power, it substantially increases the overall mechanical strength of coil, and it and chopped glass
Glass fibrofelt is a kind of ideal environment-friendly type insulated bonded scrim material, is production epoxy cast dry compared to being harmful to human health
The reason bonded scrim material of formula transformer first choice.
(4) the utility model structure is simple, and the cost of material is low, simple process, and process simplifies, and qualification rate is high, and qualification rate is high,
Substantially increase production efficiency.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram of expoxy glass screen cloth involved in the utility model.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made.
These are all within the protection scope of the present invention.
Embodiment
The present embodiment is related to providing a kind of novel transformer coil, including the rectangular line as made of multilayer electromagnetic wire coiling
It encloses, one layer of insulating tape is equipped between square coil described in adjacent two layers, the insulating tape is expoxy glass screen cloth, and structure is shown in attached
Shown in Fig. 1.
Preferably, the end face winding insulating tape of the square coil.
Preferably, the width of the expoxy glass screen cloth is 5cm.
Preferably, the expoxy glass screen cloth with a thickness of 1mm.
Preferably, the expoxy glass screen cloth includes thread layer and weft layers 3, and the thread layer includes on disposed in parallel
Layer warp thread and lower layer warp yarns, the weft layers are between top line 1 and lower layer warp yarns 2；The upper and lower layer warp thread and latitude
Cross arrangement weaves between yarn layer 3.
Compared with prior art, the utility model is with following the utility model has the advantages that (1) the utility model is used in coil and goes out
Head position is separated each wire with highdensity insulating paper, and winding protruding head position is made to play a very good protection.(2) originally
Utility model makes the production qualification rate of the coil of transformer be increased to 95% by 40%, reduces because production accident causes to give birth to
The increase for producing cost reduces the production cost of transformer very big.Very big promotion is played to the safe operation of transformer
Effect.(3) the expoxy glass grid cloth that the utility model uses is widely used in the dry-type transformer being poured with filler, reactance
On the products such as device, it is arranged between each layer of copper wire of coil, is firmly combined together with the epoxy resin of molded coil, good
Than the steel bar framework in concrete, it can prevent huge electric power of the pouring piece due to cold-thermal effect and coil sudden short circuit when
Caused coil external insulation scrim layer cracking, it substantially increases the overall mechanical strength of coil, and it and staple glass
Fibrofelt is a kind of ideal environment-friendly type insulated bonded scrim material, is production epoxy cast dry compared to being harmful to human health
The reason bonded scrim material of transformer first choice.(4) the utility model structure is simple, and the cost of material is low, simple process, and process simplifies,
Qualification rate is high, and qualification rate is high, substantially increases production efficiency.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims,
This has no effect on the substantive content of the utility model.
Claims (5)
1. a kind of novel transformer coil, including the square coil as made of multilayer electromagnetic wire coiling, side described in adjacent two layers
One layer of insulating tape is equipped between shape coil, which is characterized in that the insulating tape is expoxy glass screen cloth.
2. novel transformer coil as described in claim 1, which is characterized in that the end winding of the square coil is insulated
Band.
3. novel transformer coil as described in claim 1, which is characterized in that the width of the expoxy glass screen cloth is 5cm.
4. novel transformer coil as described in claim 1, which is characterized in that the expoxy glass screen cloth with a thickness of 1mm.
5. novel transformer coil as described in claim 1 or 4, which is characterized in that the expoxy glass screen cloth includes warp thread
Layer and weft layers (3), the thread layer includes top line disposed in parallel and lower layer warp yarns, and the weft layers are located at upper layer
Between warp thread (1) and lower layer warp yarns (2)；Cross arrangement weaves between the upper and lower layer warp thread and weft layers (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820807570.5U CN208298673U (en) | 2018-05-29 | 2018-05-29 | A kind of novel transformer coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820807570.5U CN208298673U (en) | 2018-05-29 | 2018-05-29 | A kind of novel transformer coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208298673U true CN208298673U (en) | 2018-12-28 |
Family
ID=64722103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820807570.5U Expired - Fee Related CN208298673U (en) | 2018-05-29 | 2018-05-29 | A kind of novel transformer coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208298673U (en) |
-
2018
- 2018-05-29 CN CN201820807570.5U patent/CN208298673U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181228 Termination date: 20190529 |