CN102142298A - Enameled wire for large transformer - Google Patents
Enameled wire for large transformer Download PDFInfo
- Publication number
- CN102142298A CN102142298A CN 201010546372 CN201010546372A CN102142298A CN 102142298 A CN102142298 A CN 102142298A CN 201010546372 CN201010546372 CN 201010546372 CN 201010546372 A CN201010546372 A CN 201010546372A CN 102142298 A CN102142298 A CN 102142298A
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- China
- Prior art keywords
- wire
- enamelled
- enamelled coating
- power transformer
- heart yearn
- 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.)
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Abstract
The invention relates to an enameled wire for a large transformer, which comprises a core wire and an enameled coating located outside the core wire, wherein the enameled coating clads the core wire; and the core wire comprises an aluminum core and a copper layer cladding the aluminum core, and the diameter of the core wire is 3.000-5.000 mm. Through the adoption of the enameled wire, the diameter of the enameled copper clad aluminum wire can be effectively enlarged, the resistance of the enameled copper clad aluminum wire is reduced, and the use requirements of the large transformer can be satisfied.
Description
Technical field
The present invention relates to enamelled wire, specially refer to the enamelled wire that a kind of high-power transformer is used.
Background technology
Enamelled wire is a principal item of winding wire, is made up of conductor and two ones of insulating barriers, and bare wire forms through repeatedly painting, curing behind annealing softening again.But producing is the conformance with standard requirement, satisfy the product of customer requirement again and be not easy, it is subjected to raw material quality, technological parameter, production equipment, factor affecting such as environment, therefore, the mass property of various enamelled wires has nothing in common with each other, but all possesses mechanical performance, chemical property, electrical property, hot property four big performances.
Copper-in-aluminum enameled wire is comparatively use always in the enamelled wire a kind of.Copper-in-aluminum enameled wire is to adopt copper clad aluminum material to make the electromagnet line of inner wire, and its characteristic combines the good electric conductivity of copper and the lightweight advantage of aluminium between copper aluminium.
The present extensive use of copper-in-aluminum enameled wire field is in high frequency transformer, common transformer, inductance, and solenoid, motor comprise the higher fields such as motor of environmental requirement such as family expenses motor, various micromachine and compressor.But because the narrow-mindedness of himself can not be adopted by high-power transformer usually.
High-power transformer often requires resistance the smaller the better, and this is the bigger the better with regard to the radius that requires copper-in-aluminum enameled wire, but traditional copper-in-aluminum enameled wire can not be used by high-power transformer owing to the restriction of the radius of self.
Summary of the invention
At the problems referred to above, main purpose of the present invention provides the enamelled wire that a kind of high-power transformer is used, and can be used by high-power transformer.
In order to solve an above-mentioned difficult problem, the scheme that the present invention takes is: the enamelled wire that a kind of high-power transformer is used, and it comprises heart yearn and is positioned at the enamelled coating in the heart yearn outside that enamelled coating envelopes described heart yearn, heart yearn comprises the aluminium core and envelopes the copper layer of aluminium core that the diameter of heart yearn is 3.000-5.000mm.
Further, the weight of copper layer accounts for 30%～40% of described heart yearn weight.
Further, enamelled coating comprises ground floor enamelled coating and the second layer enamelled coating that envelopes the ground floor enamelled coating.
Further, ground floor enamelled coating material is the heat-resistant polyester material, and its thickness is 0.02mm.
Further, second layer enamelled coating material is a polyester imines, and its thickness is 0.10mm.
The present invention adopts above structure, has the following advantages:
1, can enlarge the diameter of copper-in-aluminum enameled wire.
2, can reduce the resistance of copper-in-aluminum enameled wire.
3, can meet the instructions for use of high-power transformer.
Description of drawings
The structural representation of the enamelled wire that accompanying drawing 1 is used for high-power transformer of the present invention.
1, heart yearn; 2, enamelled coating; 3, aluminium core; 4, copper layer; 5, first enamelled coating; 6, second enamelled coating.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be those skilled in the art will recognize that.
The enamelled wire that a kind of high-power transformer is used, it comprises heart yearn 1 and the enamelled coating 2 that is positioned at heart yearn 1 outside, and enamelled coating 2 envelopes described heart yearn 1, and heart yearn 1 comprises aluminium core 3 and envelopes the copper layer 4 of aluminium core 3 that the diameter of heart yearn 1 is 3.000-5.000mm.
The weight of copper layer 4 accounts for the 30%-40% of described heart yearn 1 weight.
Enamelled coating 2 comprises ground floor enamelled coating 5 and envelopes the second layer enamelled coating 6 of ground floor enamelled coating 5.
Ground floor enamelled coating 5 materials are the heat-resistant polyester material, and its thickness is 0.02mm.
Second layer enamelled coating 6 materials are polyester imines, and its thickness is 0.10mm.
The enamelled wire whole process of production that high-power transformer is used has overcome the burr that copper cover aluminum occurs in coating easily, not copper aluminium combination not good, and enamel-cover is crossed soft easily broken, the joint difficulty.
The Production of Enamel Wires first step that high-power transformer is used adopts the clad welded method, and copper strips and aluminium core are advanced synchronously, and copper strips is curled to be coated on the aluminium core, adopts the seam crossing of argon arc welding welding copper strips splicing.
Second step of Production of Enamel Wires that high-power transformer is used is adopted continuous drawing, and the copper-clad aluminum conductor that has coated is carried out drawing according to specification.
The 3rd step of Production of Enamel Wires that high-power transformer is used is adopted the mould japanning, and prime paint is coated with 1 road, and floating coat is coated with 9 roads, cures, cools off, final take-up moulding.
The finished product core line diameter of the enamelled wire that high-power transformer is used is 3.000-5.000mm, and resistivity is at normal temperatures smaller or equal to 0.0257 Ω mm
2/ m, thermal shock (temperature: 200 ℃, extend 25%, time 30min) enamelled coating does not ftracture anti-solvent: the hardness of soaking the back paint film in standard solvent should be not less than " H ", and minimum break-down voltage (room temperature) is 2800V.These parameters meet the instructions for use of high-power transformer.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (5)
1. enamelled wire that high-power transformer is used, it comprises heart yearn (1) and is positioned at the enamelled coating (2) in heart yearn (1) outside, described enamelled coating (2) envelopes described heart yearn (1), described heart yearn (1) comprises aluminium core (3) and envelopes the copper layer (4) of aluminium core (3) that it is characterized in that: the diameter of described heart yearn (1) is 3.000-5.000mm.
2. the enamelled wire that high-power transformer as claimed in claim 1 is used is characterized in that: the weight of described copper layer (4) accounts for the 30%-40% of described heart yearn (1) weight.
3. the enamelled wire that high-power transformer as claimed in claim 1 is used is characterized in that: described enamelled coating (2) comprises ground floor enamelled coating (5) and envelopes the second layer enamelled coating (6) of ground floor enamelled coating (5).
4. the enamelled wire that high-power transformer as claimed in claim 3 is used is characterized in that: described ground floor enamelled coating (5) material is the heat-resistant polyester material, and its thickness is 0.02mm.
5. the enamelled wire that high-power transformer as claimed in claim 3 is used is characterized in that: described second layer enamelled coating (6) material is a polyester imines, and its thickness is 0.10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010546372 CN102142298A (en) | 2010-11-12 | 2010-11-12 | Enameled wire for large transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010546372 CN102142298A (en) | 2010-11-12 | 2010-11-12 | Enameled wire for large transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102142298A true CN102142298A (en) | 2011-08-03 |
Family
ID=44409740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010546372 Pending CN102142298A (en) | 2010-11-12 | 2010-11-12 | Enameled wire for large transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102142298A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11145434B2 (en) | 2019-05-08 | 2021-10-12 | Erico International Corporation | Low voltage power conductor and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003088282A1 (en) * | 2002-04-12 | 2003-10-23 | Jongo Yoon | Enameled wire having magnetic reluctance properties and preparation method thereof, and coil using the same and preparation method thereof |
| CN201060688Y (en) * | 2007-04-06 | 2008-05-14 | 烟台和一电子有限公司 | Non-self-adhered type enamel copper-cladded aluminum wire |
| CN201081800Y (en) * | 2007-04-07 | 2008-07-02 | 钱晓 | Copper-cladded aluminum varnished flat wire |
| CN201084471Y (en) * | 2007-04-07 | 2008-07-09 | 钱晓 | A copper-coated aluminum paint covered round wire |
| CN101819827A (en) * | 2010-04-15 | 2010-09-01 | 吴江市神州双金属线缆有限公司 | Enamelled wire for electromagnetic inductor |
-
2010
- 2010-11-12 CN CN 201010546372 patent/CN102142298A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003088282A1 (en) * | 2002-04-12 | 2003-10-23 | Jongo Yoon | Enameled wire having magnetic reluctance properties and preparation method thereof, and coil using the same and preparation method thereof |
| CN201060688Y (en) * | 2007-04-06 | 2008-05-14 | 烟台和一电子有限公司 | Non-self-adhered type enamel copper-cladded aluminum wire |
| CN201081800Y (en) * | 2007-04-07 | 2008-07-02 | 钱晓 | Copper-cladded aluminum varnished flat wire |
| CN201084471Y (en) * | 2007-04-07 | 2008-07-09 | 钱晓 | A copper-coated aluminum paint covered round wire |
| CN101819827A (en) * | 2010-04-15 | 2010-09-01 | 吴江市神州双金属线缆有限公司 | Enamelled wire for electromagnetic inductor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11145434B2 (en) | 2019-05-08 | 2021-10-12 | Erico International Corporation | Low voltage power conductor and system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110803 |