CN206505807U - A kind of improved transformation coil - Google Patents

A kind of improved transformation coil Download PDF

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Publication number
CN206505807U
CN206505807U CN201720007637.2U CN201720007637U CN206505807U CN 206505807 U CN206505807 U CN 206505807U CN 201720007637 U CN201720007637 U CN 201720007637U CN 206505807 U CN206505807 U CN 206505807U
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China
Prior art keywords
coil
big section
segment
section
improved transformation
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Active
Application number
CN201720007637.2U
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Chinese (zh)
Inventor
彭天恩
李凌吉
苏良彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Avc (xiamen) Power Transformer Co Ltd
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Avc (xiamen) Power Transformer Co Ltd
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Priority to CN201720007637.2U priority Critical patent/CN206505807U/en
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  • Coils Of Transformers For General Uses (AREA)

Abstract

A kind of improved transformation coil, including two big section coil, two big section of coils are symmetrical arranged, and each big section of coil leads to joint and some taps;Each big section of coil, which has, is filled with fiberglass gridding cloth between multiple segment coils, the segment coil, each segment coil has multilayer layer coil;The big section of coil is formed using wire coiling, and the wire periphery is enclosed with polyester film and non-woven fabrics successively from the inside to the outside.The utility model prevents wire from sliding by the filled glass fiber grid cloth between segment coil, it is ensured that intersegmental safe distance, it is to avoid short circuit phenomenon.And by wire periphery parcel polyester film and nonwoven layer, eliminating the layer insulation Rotating fields in conventional art, improve coiling efficiency, save material, reduce cost.

Description

A kind of improved transformation coil
Technical field
The utility model is related to the technical field of high voltage variable line ball circle, more particularly to a kind of improved transformation coil.
Background technology
Dry-type transformer is widely used in local lighting, skyscraper, airport, the place such as harbour CNC plant equipment, simply Say that dry-type transformer just refers to the transformer that iron core and winding are not immersed in insulating oil.Common dry-type transformer at home High-tension coil generally uses multistage layered structure, is commonly present the problem of prices of raw materials are high, such as copper material, glass fiber Band etc., it is difficult to meet market development demand.In addition, also there is the structural instability of multistage laminar, easily there is short circuit phenomenon, and Voltage between layers is higher so that the probability of coil discharge is high, anti-short circuit capability difference and tolerance lightning impulse ability.
Utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, and there is provided a kind of improved transformation coil.
In order to solve the above technical problems, the utility model employs following technical measures:
A kind of improved transformation coil, including two big section coil, two big section of coils are symmetrical arranged, each described Big section coil leads to joint and some taps;Each big section of coil has multiple segment coils, the segment coil Between be filled with fiberglass gridding cloth, each segment coil has multilayer layer coil;The big section of coil uses wire Coiling is formed, and the wire periphery is enclosed with polyester film and non-woven fabrics successively from the inside to the outside.
The utility model can also be further perfect by following technical measures:
As a further improvement, in each the big section of coil is divided into from the middle part of the stem to the outer end of the stem Section, stage casing, outer section of three segment coils, the coiling of the segment coil using it is right around to winding method.
As a further improvement, being provided with insulating barrier between the big section of coil and the stem, the insulating barrier uses glass Glass fibrous mesh cloth, the insulating barrier is wrapped on the stem.
As a further improvement, being provided with binding strap between the layer line circle.
As a further improvement, the inner segment that the outer section in the big section of coil is led in joint, the big section of coil draws Going out has some taps, and every layer of segment coil has 13 coils layer by layer, and the voltage between layers of coil is less than 300V.
Compared with prior art, the utility model has advantages below:
By using the effective dispersion voltage of multistage hierarchy, reduce electric charge excessively concentration problem, substantially reduce coil and put Electric probability.By the filled glass fiber grid cloth between segment coil, prevent wire from sliding, it is ensured that intersegmental safe distance, Avoid short circuit phenomenon.And by wire periphery parcel polyester film and nonwoven layer, eliminating the layer in conventional art Between insulation layer structure, improve coiling efficiency, save material, reduce cost.
Brief description of the drawings
Accompanying drawing 1 is the schematic diagram of the improved transformation coil of the utility model;
Accompanying drawing 2 is the schematic diagram of improved transformation coil neutralization circle winding method shown in accompanying drawing 1.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is refer to, a kind of improved transformation coil is applied in transformer, is set in when using on stem 20.Including Two big section coil 10, two big section of coils 10 are symmetrical arranged.Each big section of coil 10 has multiple segment coils 11, each segment coil 11 has multilayer layer coil.By using the effective dispersion voltage of multistage hierarchy, reduce electric charge Excessively concentration problem, substantially reduces coil discharge probability.It is preferred that, each big section of coil 10 has 3 segment coils 11. Each segment coil 11 has odd-level layer line circle, more preferably, and each segment coil 11 has 13 coils layer by layer, The voltage between layers of coil is less than 300V.Outer section in the big section of coil 10 is led in joint 14, the big section of coil 10 Inner segment leads to some taps 15.
It refer to and fiberglass gridding cloth 12 is filled between Fig. 1, the segment coil 11, each segment coil 11 With multilayer layer coil, prevent wire from sliding, it is ensured that intersegmental safe distance, it is to avoid short circuit phenomenon.Each big section of coil 10 are divided into inner segment 111, stage casing 112, outer section of 113 3 segment coils from the middle part of the stem 20 to the outer end of the stem 20 11, the coiling of the segment coil 11 using it is right around to winding method.
Fig. 2 is refer to, big section of coil 10 coiling close to upper end:The termination of the wire starts from stage casing 112, and in advance Stay termination, according to the right side around to winding method coiling odd-level repeatedly, form the coil of stage casing 112;Oblique pull wire is to stage casing afterwards 112 upside, winds according to the winding method in stage casing 112, outer section of 113 coils is made;The subsequent welding lead on reserved termination, The wire according to the right side around to winding method, the coil of inner segment 111 is made.
And big section of coil 10 coiling difference close to bottom is:It is made after the coil of stage casing 112, oblique pull wire is into The upside of section 112, winds according to the winding method in stage casing 112, the coil of inner segment 111 is made;Then weld and lead on reserved termination Line, the wire according to the right side around to winding method, outer section of 113 coils are made.
Fig. 1 is refer to, insulating barrier 13 is provided between the big section of coil 10 and the stem 20, the insulating barrier 13 is used Fiberglass gridding cloth, the insulating barrier 13 is wrapped on the stem 20.Binding strap is provided between the layer line circle, it is described to tie up Band is axially laid along stem 20, and the binding strap turns to another layer layer line circle from one layer of layer line circle.Pass through colligation Band can tense wire so that the cut-off of coil forms firmer entirety, greatly improves the mechanical performance of coil.
Fig. 1 is refer to, the big section of coil 10 is formed using wire coiling, the wire periphery is wrapped up successively from the inside to the outside There are polyester film and non-woven fabrics.It is preferred that, include more than two layers of polyester film, and single-layer nonwoven.By outside wire Parcel polyester film and nonwoven layer are enclosed, the structure of interlayer insulating film 13 in conventional art is eliminated, coiling efficiency, section is improved About material, reduce cost.In addition, non-woven fabrics additionally aids the infiltration of epoxy resin, enable to electromagnetic wire fully solid with resin Organic whole is melted into, mechanical performance, the insulating properties etc. of transformer are improved.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc. should be included in the utility model Within the scope of protection.

Claims (6)

1. a kind of improved transformation coil, applies in transformer, is set in when using on stem, it is characterised in that including two Individual big section coil, two big section of coils are symmetrical arranged, and each big section of coil leads to joint and some taps;Often The individual big section of coil, which has, is filled with fiberglass gridding cloth between multiple segment coils, the segment coil, each described Segment coil has lattice coil;The big section of coil is formed using wire coiling, and the wire periphery is wrapped successively from the inside to the outside It is wrapped with polyester film and non-woven fabrics.
2. improved transformation coil according to claim 1, it is characterised in that each big section of coil is from the stem Middle part be divided into inner segment, stage casing, outer section of three segment coils to the outer end of the stem, the coiling of the segment coil is using right Around to winding method.
3. improved transformation coil according to claim 1, it is characterised in that between the big section of coil and the stem Provided with insulating barrier, the insulating barrier uses fiberglass gridding cloth, and the insulating barrier is wrapped on the stem.
4. improved transformation coil according to claim 1, it is characterised in that binding strap is provided between the layer line circle.
5. improved transformation coil according to claim 2, it is characterised in that the outer section in the big section of coil is led to Inner segment in joint, the big section of coil leads to some taps.
6. improved transformation coil according to claim 1, it is characterised in that every layer of segment coil has 13 layer lines Circle, the voltage between layers of coil is less than 300V.
CN201720007637.2U 2017-01-05 2017-01-05 A kind of improved transformation coil Active CN206505807U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720007637.2U CN206505807U (en) 2017-01-05 2017-01-05 A kind of improved transformation coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720007637.2U CN206505807U (en) 2017-01-05 2017-01-05 A kind of improved transformation coil

Publications (1)

Publication Number Publication Date
CN206505807U true CN206505807U (en) 2017-09-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720007637.2U Active CN206505807U (en) 2017-01-05 2017-01-05 A kind of improved transformation coil

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CN (1) CN206505807U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107993816A (en) * 2017-12-20 2018-05-04 湖北三峡职业技术学院 A kind of SCB types dry-type transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107993816A (en) * 2017-12-20 2018-05-04 湖北三峡职业技术学院 A kind of SCB types dry-type transformer

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