CN108400012B - 8-shaped coil and manufacturing method thereof - Google Patents
8-shaped coil and manufacturing method thereof Download PDFInfo
- Publication number
- CN108400012B CN108400012B CN201810152177.1A CN201810152177A CN108400012B CN 108400012 B CN108400012 B CN 108400012B CN 201810152177 A CN201810152177 A CN 201810152177A CN 108400012 B CN108400012 B CN 108400012B
- Authority
- CN
- China
- Prior art keywords
- coil
- small
- manufacturing
- double
- cake
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/071—Winding coils of special form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/082—Devices for guiding or positioning the winding material on the former
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/09—Winding machines having two or more work holders or formers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention discloses a manufacturing method of a 8-shaped coil, which comprises the following main process flows: winding a large (small) coil → shaping the large (small) coil and processing the head of the joint → positioning tooling preparation → coil positioning → wire welding at the joint → insulating wrapping at the joint → shaping the coil. The invention has the advantages that the universal winding former and the conventional process can be adopted for winding, the yield is high, and the quality is good; the whole process is simple and less in labor, and the manufacturing period is only 1/3 of the conventional process period.
Description
Technical Field
The invention belongs to the technical field of transformer coils, and particularly relates to an 8-shaped coil and a manufacturing method thereof.
Background
The 8-shaped coil is a coil form commonly used in an electric furnace transformer and a rectifier transformer, and is generally used in a low-voltage coil of a third-winding voltage-regulating rectifier (or electric furnace) transformer. At present, the manufacturing process flow of the coil in the transformer manufacturing industry is as follows: 1) a special 8-shaped winding tool is specially designed and manufactured for each product, as shown in fig. 4; 2) installing a winding tool on a winding machine; 3) winding an 8-shaped double-cake coil; 4) temporarily binding the double-cake coil along the circumference; 5) manually taking down the wound single double-cake line segment and placing the single double-cake line segment on a platform; 6) the single double-pie-piece flower package is tightly bound by a binding belt, as shown in figure 5; 7) the double-pie segments are stacked orderly section by section, cushion blocks are arranged, and supporting strips are strung, as shown in figure 6; 8) and shaping and press-fitting the coil. From the above steps, it can be seen that, in the existing 8-shaped coil, each double-pancake line segment needs to be separately wound and separately processed in the winding process, and the whole manufacturing process is very complex and consumes much labor and time. In addition, the final finished coil has poor roundness and needs to give a large sheathing margin, which reduces the reliability of the transformer.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an 8-shaped coil and a brand-new process manufacturing method thereof; the method can be applied to 8-shaped coils in various forms wound by common wires.
In order to achieve the purpose, the invention adopts the following technical scheme:
a manufacturing method of a figure-8 coil comprises the following steps:
1) respectively winding a double-cake large coil section and a double-cake small coil section on a conventional winding machine according to a normal double-cake continuous coil process, wherein a plurality of double-cake large coil sections form a large coil, and a plurality of double-cake small coil sections form a small coil; all the double-cake large coil segments and the double-cake small coil segments are wound on a conventional winding machine at one time, and binding of the outlet ends of the connecting parts needs to be paid special attention during winding;
2) demolding and shaping the large coil and the small coil according to a conventional process, and removing the wire insulating layer from the wire ends at all connecting positions;
3) fixing a positioning die of a positioning tool on a substrate of the positioning tool according to the design size of the 8-shaped coil, and manufacturing a gear marking of the coil;
4) sleeving the wound large-circle coil and small-circle coil on a positioning die of a positioning tool respectively and shaping the large-circle coil and the small-circle coil, wherein the gears of the large-circle coil and the small-circle coil are consistent with the gear mark line on the positioning tool during sleeving;
5) welding the wires at the joint of the large coil and the small coil together by a high-frequency induction welding machine, after welding, insulating the wires at the joint, placing a paperboard strip between the wires, and then binding the wires together by a binding belt;
6) and shaping the cushion blocks, the supporting strips and the like of the 8-shaped coil according to requirements to finish the whole manufacturing process.
The manufacturing method of the 8-shaped coil comprises the steps of splitting the original 8-shaped double-pancake coil into the large coil and the small coil, separately winding the large coil and the small coil, and finally welding the large coil and the small coil together to form the 8-shaped coil.
Furthermore, the positioning tool is provided with a positioning die and a gear marking, and the gear marking is used as a gear reference marking for sleeving a large coil or a small coil, so that mutual dislocation is avoided when the large coil and the small coil are sleeved.
Furthermore, the positions of the heads of the joints after the large coil or the small coil is shaped are the same, so that the joints can be conveniently welded subsequently, and the welding difficulty caused by inconsistent positions of the heads of the joints is avoided.
Furthermore, the deviation range of the head-out position of the connecting part on the circumference of the coil is 0-5mm, the most ideal state is that the deviation is 0mm, and if the deviation cannot be ensured, the deviation needs to be controlled within 5 mm.
Furthermore, the joints of the large coils and the joints of the small coils are welded in a one-to-one correspondence manner, so that short circuit or open circuit of coil wire turns caused by welding dislocation is avoided.
Furthermore, the welding position of the connection part is subjected to insulation binding treatment, so that abnormal connection between parallel wires caused by contact of the welding position after the transformer is electrified is avoided, and further the electrical fault of the transformer coil is caused.
The method for manufacturing the 8-shaped coil can use related tools such as a winding machine, a winding former, a high-frequency induction welding machine, a positioning tool and the like. The other devices except the positioning tool in the related device are conventional universal devices; the positioning tool is used for effectively positioning the relative positions of the two wound coils, and the positioning tool only has the function when being structurally arranged; the positioning tooling requires three most basic components: the positioning base plate, the positioning die and the gear marking line have more functional parts for realizing the adjustability in a certain range.
The invention has the advantages that:
1. the invention can adopt a general winding former and a conventional process for winding, and has high yield and good quality;
2. the whole process is simple and less in labor, and the manufacturing period is only 1/3 of the conventional process period.
Drawings
FIG. 1 is a schematic diagram of the structure of the figure-8 coil of the present invention;
FIG. 2 is a schematic diagram of the structure of the large coil in the figure-8 coil of the present invention;
FIG. 3 is a schematic diagram of the structure of the large coil in the figure-8 coil of the present invention;
FIG. 4 is a schematic diagram of a conventional 8-shaped coil during winding;
FIG. 5 is a schematic structural view of a conventional 8-shaped coil after binding;
fig. 6 is a schematic structural diagram of a conventional figure-8 coil after shaping.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
as shown in fig. 1, fig. 2 and fig. 3, the main process flow for manufacturing the 8-shaped coil of the present invention is as follows: winding a large (small) coil → shaping the large (small) coil and processing the head of the joint → positioning tooling preparation → coil positioning → wire welding at the joint → insulating wrapping at the joint → shaping the coil.
The specific preparation method comprises the following steps:
1) respectively winding a double-cake large coil section 8 and a double-cake small coil section 9 on a conventional winding machine according to a normal double-cake continuous coil process, wherein a plurality of double-cake large coil sections 8 form a large coil 1, and a plurality of double-cake small coil sections (9) form a small coil 2; all the double-cake large circle line segments 8, the double-cake small circle line segments 9, the cushion blocks 3 and the stay bars 4 are completed at one time; when winding, special attention needs to be paid to binding of the outlet end of the connecting part 5; the outermost circle of lead is required to be firmly bound at the outgoing position of the 5-joint gear and the adjacent 2-joint gear according to the size of the coil, and the outgoing positions of the lead at the 5-joint gear need to be consistent.
2) Demolding and shaping the large coil 1 or the small coil 2 according to a conventional process, and removing the wire insulating layer from the wire ends of all the connecting parts 5;
3) fixing a positioning die 6 of a positioning tool 7 on a substrate of the positioning tool 7 according to the design size of the 8-shaped coil, and manufacturing a gear marking 10 of the coil;
4) sleeving the wound large coil 1 and small coil 2 on a positioning die 6 of a positioning tool 7, wherein the gear of the large coil 1 or the small coil 2 is consistent with a gear mark line 10 on the positioning tool 7;
5) welding the leads at the joint 5 of the large coil 1 and the small coil 2 together one by adopting a high-frequency induction welding machine, if the leads at the joint 5 are a plurality of leads, the leads must be welded correspondingly one by one, after the welding is finished, the leads at the joint need to be subjected to insulation binding treatment, a paperboard strip is placed between the leads, and then the leads are bound together by a binding belt;
6) and shaping the cushion block 3, the stay 4 and the like of the 8-shaped coil according to requirements, and then finishing the whole manufacturing process.
In order to realize simple, quick, convenient and safe winding of the coil, the deviation range of the joint 5 on the circumference of the coil is 0-5mm, the most ideal state is that the deviation is 0mm, and if the deviation cannot be ensured, the deviation needs to be controlled within 5 mm.
The positioning tool 7 is used for effectively positioning the relative positions of the wound large coil 1 and the wound small coil 2; the positioning tool 7 only has the function in the structure, and the positioning tool 7 needs three most basic components, namely a positioning substrate, a positioning die and a gear marking; to achieve a certain range of adjustability, more functional components are added to the actual positioning tool 7.
Although particular embodiments of the present invention have been described and illustrated in detail, it should be noted that various changes and modifications could be made to the above-described embodiments without departing from the spirit of the invention and the scope of the appended claims.
Claims (6)
1. A manufacturing method of a 8-shaped coil is characterized by comprising the following steps:
1) respectively winding a double-cake large coil section (8) and a double-cake small coil section (9) on a conventional winding machine according to a normal double-cake continuous coil process, wherein a plurality of double-cake large coil sections (8) form a large coil (1), and a plurality of double-cake small coil sections (9) form a small coil (2); all the double-cake large coil segments (8) and the double-cake small coil segments (9) are wound on a conventional winding machine at one time, and binding of the outlet ends of the connecting parts (5) needs to be paid special attention during winding;
2) demolding and shaping the large-circle coil (1) and the small-circle coil (2) according to a conventional process, and removing the wire insulating layer from the wire ends of all the connecting parts (5);
3) fixing a positioning die (6) of a positioning tool (7) on a substrate of the positioning tool according to the design size of the 8-shaped coil, and manufacturing a gear marking (10) of the coil;
4) respectively sleeving a large coil (1) and a small coil (2) which are wound on a positioning die (6) of a positioning tool (7), wherein the gears of the large coil (1) and the small coil (2) are consistent with a gear mark line (10) on the positioning tool (7) when the large coil and the small coil are sleeved;
5) welding the wires at the joint (5) of the large coil (1) and the small coil (2) together by a high-frequency induction welding machine, after welding, insulating the wires at the joint, placing a paperboard strip between the wires, and then binding the wires together by a binding tape;
6) and shaping the cushion block (3) and the stay (4) of the 8-shaped coil according to requirements, and finishing the whole manufacturing process.
2. The manufacturing method of the 8-shaped coil according to claim 1, characterized in that a positioning die (6) and a gear marking (10) are arranged on the positioning tool (7).
3. The method for manufacturing the figure-8 coil according to claim 1, wherein the positions of the ends of the connecting parts (5) are consistent after the large coil (1) or the small coil (2) is shaped.
4. The method for manufacturing the figure-8 coil according to claim 1, wherein the deviation range of the head-out position of the joint (5) on the coil circumference is 0-5 mm.
5. The manufacturing method of the figure-8 coil is characterized in that the joints (5) of the large-circle coil (2) and the joints (5) of the small-circle coil (2) are welded in a one-to-one correspondence mode.
6. The method for manufacturing the figure-8 coil is characterized in that the welding position of the connecting position (5) is subjected to insulation binding treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152177.1A CN108400012B (en) | 2018-02-14 | 2018-02-14 | 8-shaped coil and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152177.1A CN108400012B (en) | 2018-02-14 | 2018-02-14 | 8-shaped coil and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108400012A CN108400012A (en) | 2018-08-14 |
| CN108400012B true CN108400012B (en) | 2020-10-20 |
Family
ID=63095341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810152177.1A Active CN108400012B (en) | 2018-02-14 | 2018-02-14 | 8-shaped coil and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108400012B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114429847B (en) * | 2022-04-01 | 2022-05-31 | 苏州好博医疗器械股份有限公司 | Magnetic field generating coil and winding method thereof |
| CN115101332A (en) * | 2022-08-04 | 2022-09-23 | 西比里电机技术(苏州)有限公司 | Device for preparing cake-type winding of transformer by ceramic aluminum conductor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01231308A (en) * | 1988-03-11 | 1989-09-14 | Hitachi Cable Ltd | Formation of coil section for double-layer coil having no connecting section on inside |
| JPH04355410A (en) * | 1991-06-01 | 1992-12-09 | Sumitomo Electric Ind Ltd | Communication wire housing tool and method thereof |
| CN102403119B (en) * | 2010-09-14 | 2013-01-30 | 保定天威集团(江苏)五洲变压器有限公司 | Device for winding 8-shaped coils |
| CN206649985U (en) * | 2017-04-28 | 2017-11-17 | 锦州新生变压器有限责任公司 | Large Electric Furnace low voltage winding in transformers structure |
| CN107464691A (en) * | 2017-10-11 | 2017-12-12 | 长春三鼎变压器有限公司 | Furnace transformer " 8 " font low-voltage coil bushing device |
-
2018
- 2018-02-14 CN CN201810152177.1A patent/CN108400012B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108400012A (en) | 2018-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103930958B (en) | Wound form iron core manufacture method for split core construction | |
| KR101810597B1 (en) | Electrical transformer assembly | |
| CN108400012B (en) | 8-shaped coil and manufacturing method thereof | |
| US2246239A (en) | Wound core assembling arrangement | |
| CN203192595U (en) | Wire-wrapping glue-coating all-in-one machine for electronic components | |
| CN102903505A (en) | Transformer production process | |
| CN103390493A (en) | Winding method for high-tension coil with padding | |
| US20190392981A1 (en) | Three-dimensional wound core open dry-type transformer coil structure and winding method therefor | |
| US2288855A (en) | Method and means for making cores for transformers or the like | |
| JP4297323B2 (en) | Multi-wire coil winding method | |
| CN104008849B (en) | A kind of paster hollow coil inductance | |
| US2700207A (en) | Method of making magnetic cores for transformers or the like | |
| CN106469598B (en) | A kind of multi-layer winding and its winding method | |
| JP2008072070A (en) | Compact power transformer | |
| CN107994198A (en) | A kind of battery pole ear production line and its production technology | |
| US2219182A (en) | Core winding arrangement | |
| CN106783144B (en) | Multi-section layered drum type winding process | |
| CN203456280U (en) | Low-voltage coil rolling fixture of oil immersed three-dimensional rolling core transformer | |
| CN113394007A (en) | Soft magnetic core and soft magnetic core winding method | |
| CN207853712U (en) | Coil winding machine for stator | |
| US4551185A (en) | Methods of and apparatus for making retractile cords | |
| US9070504B2 (en) | Transformer and fabricating method for transformer | |
| CN202736737U (en) | Apparatus for winding 8-shaped coil | |
| CN206991925U (en) | A kind of Novel inductor | |
| CN114823123B (en) | Winding method of half-turn continuous coil with shielding wire |
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 |