CN109786081B - Method for manufacturing cone-shaped glue-free secondary coil based on crepe paper and coil - Google Patents
Method for manufacturing cone-shaped glue-free secondary coil based on crepe paper and coil Download PDFInfo
- Publication number
- CN109786081B CN109786081B CN201910181818.0A CN201910181818A CN109786081B CN 109786081 B CN109786081 B CN 109786081B CN 201910181818 A CN201910181818 A CN 201910181818A CN 109786081 B CN109786081 B CN 109786081B
- Authority
- CN
- China
- Prior art keywords
- crepe paper
- paper
- coil
- winding
- cone
- 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.)
- Active
Links
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention relates to a secondary coil, and provides a method for manufacturing a conical non-glue secondary coil based on crepe paper and the coil, aiming at the defects that the existing non-glue secondary coil is low in practicability and difficult to meet the actual working requirement due to complex manufacturing procedures and long manufacturing period. The method for manufacturing the cone-shaped glue-free secondary coil based on the crepe paper comprises the following steps of: 1) manufacturing a paper inner cone (2); manufacturing a paper inner cone cylinder (2) on the conical base cylinder (1) through a wet forming process; 2) manufacturing an interval winding layer (3); placing the coil winding (32) on the upper surface of the crepe paper (31) along the length direction of the crepe paper (31), enabling the lower surface of the crepe paper (31) to be in contact with the paper inner cone (2), spirally winding the crepe paper (31) and the coil winding (32) on the paper inner cone (2), and overlapping two adjacent circles of crepe paper (31) to form an interval winding layer (3); 3) the conical base cylinder (1) is removed.
Description
Technical Field
The invention relates to a secondary coil, in particular to a method for manufacturing a conical non-adhesive secondary coil based on crepe paper and the coil.
Background
The Russian Sinus series high-voltage pulse generator adopts a compact structure with a high-coupling transformer with an open-circuit magnetic core and a coaxial forming wire.
The primary coil and the secondary coil of the transformer are embedded in the coaxial pulse forming line; the secondary coil has the characteristics of thin wire diameter and multiple turns, and is arranged between an inner magnetic core and an outer magnetic core which form a wire.
The commonly used secondary coil takes an electrical paper board as a base cylinder, and a thin-wire-diameter conducting wire is wound and fixed on a paper inner cone cylinder in a curing adhesive gluing mode. The coil is divided into a dense winding mode and a sparse winding mode, and the interturn distance is large in the sparse winding mode, so that the coil can be expected to bear higher voltage. The prior art of gluing a loose coil is as follows: winding the coil winding and the spacing wire on a conical paper tube with glue together; after the coil is wound, the spacing wire is removed; after a period of time of glue curing process, the coil winding is fixed on the paper tube. The adhesive sparse winding coil has uniform winding intervals, so that the stress of each turn of the coil winding is uniform, the turn-to-turn insulation is good, the structural strength needs to be ensured, and the adhesive consumption of the sparse winding coil is more than that of a dense winding mode. In the process of dismantling the space wire, glue can be brought out from the space wire, the shape of the turn-to-turn glue layer is different, the bubble content of the glue layer is high, and the turn-to-turn glue layer is affected along the surface insulation. No matter the adhesive coil is densely wound or sparsely wound, tiny air bubbles exist in a solidified adhesive layer, and the problem of the bubbles in the adhesive layer cannot be thoroughly solved.
In the process of charging the secondary coil, the inner magnetic core is at a high potential, and two ends of the secondary coil bear high voltage; at the moment, the electric field in the air gap in the glue layer is obviously enhanced, and the phenomenon of gas discharge is easy to occur, so that the coil is burnt, and the transformer cannot work normally.
In the prior art, high-voltage insulation performance of a medium is improved by loading high air pressure on a formed line medium; however, the high pressure cannot improve the form of the microbubbles in the cured gel layer, and the bubbles in the gel layer are still prone to high voltage breakdown.
The secondary coil of the non-glue type conical high-voltage pulse transformer (application number: ZL201510381708.0) disclosed by the Chinese patent provides a non-glue coil structure, which solves the problem of gas discharge caused by a gluing process in the existing conical secondary coil manufacturing, improves the turn-to-turn insulation performance of the coil and ensures the integral insulation strength of the conical secondary coil. However, the coil winding is fixed by the fishing line, so that the manufacturing process is complicated, and the manufacturing period is long for ensuring the uniformity of the coil winding; therefore, the practicability is not high, and the actual working requirement is difficult to meet.
Disclosure of Invention
The invention aims to overcome the defects that the prior non-adhesive secondary coil has complex manufacturing process and longer manufacturing period, causes low practicability and is difficult to meet the actual working requirement, and provides a method for manufacturing a conical non-adhesive secondary coil based on crepe paper and the coil.
In order to achieve the purpose, the invention forms a method for manufacturing a conical adhesive-free secondary coil based on crepe paper by winding the crepe paper and coil winding on a paper inner cone at intervals, and is characterized by comprising the following steps of: 1) making paper inner cone
Manufacturing a paper inner cone cylinder on the conical base cylinder through a wet forming process;
2) making spaced wound layers
Selecting crepe paper and coil winding, placing the coil winding on the upper surface of the crepe paper along the length direction of the crepe paper, enabling the lower surface of the crepe paper to contact with a paper inner cone, spirally winding the crepe paper and the coil winding on the paper inner cone together, and overlapping two adjacent circles of crepe paper to form an interval winding layer;
3) the conical base cylinder is removed.
Further, in order to improve the winding uniformity of the crepe paper along the conical surface of the paper inner cone and enable the thickness of the interval winding layers of the crepe paper 1 and the winding 2 to be consistent, in the step 2), the axial displacement of a single turn of the crepe paper is slightly larger than the diameter of the winding of the coil. Specifically, in the step 2), the diameter of coil winding is defined as D, the thickness of crepe paper is defined as l, and the distance between coil windings of the interval winding layer and the conical surface turn of the paper inner cone is defined as D; d + l is less than or equal to D and less than or equal to D +2 l.
Further, in order to improve the overall strength of the interval winding layer along the conical surface of the paper inner cone, the width of the crepe paper is far larger than the diameter of the coil winding, and the width of the crepe paper in the step 2) is w; generally, w is not less than 10 d; namely, the width w of the crepe paper is more than ten times of the coil winding diameter d.
Furthermore, in order to improve the tightness and uniformity between turns of the coil winding, the thickness of the crepe paper is far smaller than the diameter of the coil winding. The thickness l of the crepe paper in the general step 2) is less than or equal to 0.2 d.
In addition, this application still provides a cone-shaped does not have gluey secondary coil based on crepe paper, and its special character lies in: comprises a paper inner cone and an interval winding layer which are coaxial and tightly attached from inside to outside; the interval winding layer comprises crepe paper and coil winding; and placing the coil winding on the upper surface of the crepe paper along the length direction of the crepe paper, enabling the lower surface of the crepe paper to contact with the paper inner cone cylinder, spirally winding the crepe paper and the coil winding on the paper inner cone cylinder together, and overlapping two adjacent circles of crepe paper to form the interval winding layer. The crepe paper plays a role in coil winding inter-turn insulation; the single turn of the coil winding is fixed by the peripheral multilayer crepe paper.
Further, the diameter of coil winding is defined as D, the thickness of crepe paper is defined as l, the width of the crepe paper is defined as w, and the distance between coil windings of the interval winding layer and the conical surface turn of the paper inner cone is defined as D; l is less than or equal to 0.2D, w is more than or equal to 10D, and D + l is less than or equal to D +2 l.
Furthermore, the coil winding adopts an enameled wire or a three-layer insulated wire.
Compared with the prior art, the invention has the advantages that:
1. the invention adopts the mode that the crepe paper and the coil winding are wound at intervals to fix the coil winding, replaces the traditional mode that the coil winding is fixed by glue, realizes the non-gluing and solves the problems of long service life and high reliability of the conical high-voltage secondary coil.
2. The interval winding layer adopts the crepe paper as the interval insulating material of the adjacent coil windings of the coil, and the crepe paper has the characteristics of easy vacuum oil immersion, long-term immersion in oil, original elastic tension and the like, so that the coil windings are fixed reliably and are not easy to scatter. Even after the coil is used for a long time, the conical cylinder of the coil deforms a small amount, the winding can deform together with the conical cylinder, the strength of the winding fixation is unchanged, the phenomenon that the winding in the adhesive coil is degummed and loosened cannot occur, and the coil can work normally.
3. The width of the crepe paper is far larger than the diameter of the coil winding, the same coil winding is bound and fixed by the peripheral multi-layer crepe paper, even if the coil winding is broken in the using process, the thread end can not be broken and scattered, the structural strength of the winding layer of the coil winding is not influenced, and therefore the coil can be continuously used for a period of time, and the service life of the coil is prolonged.
4. The thickness of the crepe paper is far smaller than the diameter of the coil winding, the adjacent distance of the coil winding is determined by the thickness, the adjacent distance of the coil winding can be adjusted by changing the thickness of the crepe paper, and the optimized distribution of the pitch of the conical coil is realized.
5. The conical secondary coil has the advantages of simple structure, simple manufacturing process, short period, low raw material cost and better compactness.
Drawings
Fig. 1 is a schematic structural view of one embodiment of a cone-shaped non-glue secondary coil of the present invention.
The reference numerals in the drawings are explained as follows:
1-a conical base cylinder;
2-paper inner cone;
3-interval winding layer, 31-crepe paper and 32-coil winding.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The embodiment provides a method for manufacturing a cone-shaped non-glue secondary coil based on crepe paper, which comprises the following steps: 1) manufacturing of paper inner cone 2
Manufacturing a paper inner cone barrel 2 on the conical base barrel 1 through a wet forming process;
the wet forming process is a mature process applied to an insulating structural member of a power transformer, and the specific method is that a plurality of layers of wet paper are externally coated on a conical base cylinder 1, then tightening belts are bound, and a solid paper component with certain mechanical strength and dry is formed after high-temperature drying for a certain time.
The paper inner cone 2 is composed of a plurality of single-layer wet paper with the thickness of tens of microns, the single-layer wet paper is made of raw wood pulp, and the fiber thickness and the length of the raw wood pulp are tens of microns and several millimeters.
2) Making spaced apart wraps 3
The coil winding 32 is placed on the upper surface of the crepe paper 31 along the length direction of the crepe paper 31, the lower surface of the crepe paper 31 is in contact with the paper inner cone 2, the crepe paper 31 and the coil winding 32 are spirally wound on the paper inner cone 2, and two adjacent circles of crepe paper 31 are partially overlapped to form the interval winding layer 3.
Specifically, from the small end of the paper inner cone 2, crepe paper 31 with the winding width w of 20mm and the thickness l of 0.2mm is wound, and meanwhile, the end of the coil winding 32 is fixed at the small end of the paper inner cone 2, the coil winding 32 is wound on the crepe paper 31, the crepe paper 31 is wound while the coil winding 32 is wound until the large end of the paper inner cone 2, and the end of the coil winding 32 is fixed at the large end of the paper inner cone 2. The thin wire diameter coil adopts an enameled wire with the outer diameter d of 1 mm; the coil winding 32 of the interval winding layer 3 is about 1.3mm along the conical surface turn distance D of the paper inner cone 2. The total axial width of the crepe paper wound at both ends of the coil was about 4 cm.
3) The conical base cylinder 1 is removed.
In addition, as shown in fig. 1, the present embodiment further provides a conical glue-free secondary coil manufactured based on the above method, and the conical glue-free secondary coil is integrally in a thin-walled conical cylinder structure, and includes an inner paper cone 2 and an interval winding layer 3, which are coaxially and tightly attached from inside to outside. Wherein, the paper inner cone 2 is manufactured by a wet forming process.
The interval winding layer 3 comprises crepe paper 31 and coil windings 32, the coil windings 32 are placed on the upper surface of the crepe paper 31 along the length direction of the crepe paper 31, the lower surface of the crepe paper 31 is in contact with the paper inner cone 2, the crepe paper 31 and the coil windings 32 are spirally wound on the paper inner cone, and two adjacent circles of the crepe paper 31 are partially overlapped to form the interval winding layer 3. The crepe paper 31 serves as inter-turn insulation of the coil windings 32; a single turn of the coil wire 32 is fixed by the outer peripheral multi-layer crepe paper 31.
The above embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and other modifications are possible within the scope of the invention. It is to be understood that any obvious alternative is within the scope of the invention without departing from the inventive concept.
Claims (7)
1. The method for manufacturing the cone-shaped glue-free secondary coil based on the crepe paper is characterized by comprising the following steps of: 1) making papery inner cone (2)
Manufacturing a paper inner cone cylinder (2) on the conical base cylinder (1) through a wet forming process;
2) making alternate winding layers (3)
Selecting crepe paper (31) and coil windings (32), placing the coil windings (32) on the upper surface of the crepe paper (31) along the length direction of the crepe paper (31), enabling the lower surface of the crepe paper (31) to contact with the paper inner cone (2), spirally winding the crepe paper (31) and the coil windings (32) on the paper inner cone (2), and overlapping two adjacent circles of crepe paper (31) to form an interval winding layer (3);
3) the conical base cylinder (1) is removed.
2. The method of claim 1 for manufacturing a cone-shaped glue-free secondary coil on the basis of crepe paper, characterized in that:
in the step 2), the diameter of the coil winding (32) is defined as D, the thickness of the crepe paper (31) is defined as l, and the distance between the coil winding (32) of the interval winding layer (3) and the conical surface turn of the paper inner cone (2) is defined as D;
d + l is less than or equal to D and less than or equal to D +2 l.
3. The method of claim 2 for manufacturing a cone-shaped glue-free secondary coil on the basis of crepe paper, characterised in that:
in the step 2), defining the width of the crepe paper (31) as w; w is greater than or equal to 10 d.
4. Method for manufacturing a cone-shaped glue-free secondary coil on the basis of crepe paper according to claim 2 or 3, characterised in that:
in the step 2), the thickness l of the crepe paper (31) is less than or equal to 0.2 d.
5. The utility model provides a cone-shaped does not have gluey secondary coil based on crepe paper which characterized in that: comprises a paper inner cone (2) and an interval winding layer (3), which are coaxial and tightly attached from inside to outside; the interval winding layer (3) comprises crepe paper (31) and a coil winding (32);
the coil winding (32) is placed on the upper surface of the crepe paper (31) along the length direction of the crepe paper (31), the lower surface of the crepe paper (31) is in contact with the paper inner cone cylinder (2), the crepe paper (31) and the coil winding (32) are spirally wound on the paper inner cone cylinder, and two adjacent circles of the crepe paper (31) are partially overlapped to form the interval winding layer (3).
6. The crepe paper based cone-shaped glue-free secondary coil as recited in claim 5, wherein: the diameter of a coil winding (32) is defined as D, the thickness of the crepe paper (31) is defined as l, the width of the crepe paper (31) is defined as w, and the distance between the coil winding (32) of the interval winding layer (3) and the conical surface turn of the paper inner cone (2) is defined as D; l is less than or equal to 0.2D, w is more than or equal to 10D, and D + l is less than or equal to D +2 l.
7. The crepe paper based cone-shaped glue-free secondary coil as recited in claim 6, wherein: the coil winding (32) adopts an enameled wire or a three-layer insulated wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181818.0A CN109786081B (en) | 2019-03-11 | 2019-03-11 | Method for manufacturing cone-shaped glue-free secondary coil based on crepe paper and coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181818.0A CN109786081B (en) | 2019-03-11 | 2019-03-11 | Method for manufacturing cone-shaped glue-free secondary coil based on crepe paper and coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109786081A CN109786081A (en) | 2019-05-21 |
| CN109786081B true CN109786081B (en) | 2020-04-24 |
Family
ID=66488857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910181818.0A Active CN109786081B (en) | 2019-03-11 | 2019-03-11 | Method for manufacturing cone-shaped glue-free secondary coil based on crepe paper and coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109786081B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544583B (en) * | 2019-08-28 | 2021-06-08 | 西北核技术研究院 | Crepe paper interval precision winding machine and method of conical high-voltage secondary coil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090105A1 (en) * | 2001-05-10 | 2002-11-14 | University Of Toledo | Actively controlled impact elements |
| CN104992820A (en) * | 2015-06-30 | 2015-10-21 | 西北核技术研究所 | Secondary coil of non-adhesive tapered high-voltage pulse transformer |
| CN205828096U (en) * | 2016-07-20 | 2016-12-21 | 贵阳恒志机电科技有限公司 | A kind of adhesion without adhesiver inductance |
| CN206226764U (en) * | 2016-08-30 | 2017-06-06 | 佛山市顺德区恒顺杰电子有限公司 | One kind is without glue densely packed coil disk |
-
2019
- 2019-03-11 CN CN201910181818.0A patent/CN109786081B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090105A1 (en) * | 2001-05-10 | 2002-11-14 | University Of Toledo | Actively controlled impact elements |
| CN104992820A (en) * | 2015-06-30 | 2015-10-21 | 西北核技术研究所 | Secondary coil of non-adhesive tapered high-voltage pulse transformer |
| CN205828096U (en) * | 2016-07-20 | 2016-12-21 | 贵阳恒志机电科技有限公司 | A kind of adhesion without adhesiver inductance |
| CN206226764U (en) * | 2016-08-30 | 2017-06-06 | 佛山市顺德区恒顺杰电子有限公司 | One kind is without glue densely packed coil disk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109786081A (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109786081B (en) | Method for manufacturing cone-shaped glue-free secondary coil based on crepe paper and coil | |
| CN109950040B (en) | Method for manufacturing cone-shaped glue-free secondary coil based on wet forming process and coil | |
| CN2750432Y (en) | Insulation structure of transformer lead | |
| CN109830371B (en) | Method for manufacturing conical glue-free secondary sparse winding coil based on wet forming process and coil | |
| CN104992820B (en) | Secondary coil of non-adhesive tapered high-voltage pulse transformer | |
| CN203134541U (en) | Traveling-wave tube annular transformer | |
| CN103151904A (en) | High-power, high-frequency pulse and high-voltage rectifying transformer | |
| CN201369220Y (en) | Foil winding structure of low-voltage coil | |
| CN201829314U (en) | Automatic winding type winding element | |
| CN109036805A (en) | A kind of Tesla pulse transformer of the secondary coil without support frame | |
| CN208819718U (en) | A kind of Tesla pulse transformer of the secondary coil without support frame | |
| CN205050688U (en) | Power transformer's multi -layer cylinder formula coil | |
| CN208536784U (en) | A kind of winding construction improving the LVDT linearity | |
| CN110379617A (en) | A kind of production method and the coil of self-adhesion cone cell high voltage second coil | |
| CN207233556U (en) | A kind of high-power new energy charging pile ring-shaped transformer | |
| CN206293242U (en) | A kind of multi cord inductance | |
| CN207021133U (en) | The transformer of electric-arc lighter | |
| CN201853569U (en) | Ignition coil of engine and primary winding of ignition coil of engine | |
| CN216957689U (en) | High-voltage coil of transformer | |
| CN208848722U (en) | Low distribution parameter isolation drive transformer | |
| CN219979293U (en) | High-voltage coil of dry-type transformer | |
| CN109494028A (en) | Single guide-tube structure oilpaper casing | |
| CN211929255U (en) | Axial irregular combined conductor applicable to power transformer with voltage of over 66kV | |
| CN110736429A (en) | winding structure for improving linearity of LVDT | |
| CN217181982U (en) | Tail outlet structure of transformer high-voltage coil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |