CN201430005Y - Mica insulation composite wire - Google Patents
Mica insulation composite wire Download PDFInfo
- Publication number
- CN201430005Y CN201430005Y CN2009200765559U CN200920076555U CN201430005Y CN 201430005 Y CN201430005 Y CN 201430005Y CN 2009200765559 U CN2009200765559 U CN 2009200765559U CN 200920076555 U CN200920076555 U CN 200920076555U CN 201430005 Y CN201430005 Y CN 201430005Y
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- CN
- China
- Prior art keywords
- mica
- wire
- bare copper
- mica tape
- insulation composite
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Abstract
The utility model belongs to the technical field of electric equipment, particularly relates to a mica insulation composite wire, comprising bare copper sheet wires, mica tape insulating layers and insulating layers, wherein each bare copper sheet wire is bound with the mica tape insulating layers to form a paper wrapped sheet wire, and the paper wrapped sheet wire is folded along a wide side to form a wire core which is bound with the insulating layers. Each bare copper sheet wire has a thickness of 0.8 to 1.5mm and a width of 4 to 10mm, and each mica tape insulating layer has a thickness of0.2 to 0.29mm. The mica insulation composite wire is produced by wrapping two to four bare copper sheet wires with the special-produced mica tape insulating layers and radially combing the bare coppersheet wires, thereby satisfying the electric performances required by transformers, motors, electric appliances and the like in special environments.
Description
Technical field
The utility model belongs to the electric equipment technical field, is specifically related to a kind of mica insulation composite conductor.
Background technology
According to the different performance requirement of transformer, motor, the lead that its winding is used also has the different technologies requirement.The combination of common paper insulation, enamel-cover paper bag composite conductor by 2-4 root flat wire with paper wrapped or enameled sheet wire along broadside overlapping after again turnkey exterior insulation paper form.But the insulation property of this composite conductor can not satisfy the needs of electrical equipment such as transformer that certain property requires, motor under special environment for use.Thereby need a kind of novel lapped wire and substitute common paper envelope curve, i.e. mica insulation composite conductor.
Summary of the invention
The purpose of this utility model is to propose a kind of mica insulation composite conductor.
The mica insulation composite conductor that the utility model proposes is made up of bare copper flat wire 1, mica tape insulating barrier 2 and insulating barrier 3, the every bare copper flat wire 1 outer mica tape insulating barrier 2 that all is surrounded with, constitute flat wire with paper wrapped, this flat wire with paper wrapped is superimposed along broadside, constitutes core, and core is coated with insulating barrier 3.
In the utility model, the thickness of bare copper flat wire 1 is 0.8～1.5mm, and width is 4～10mm.The thickness of mica tape insulating barrier 2 is 0.20～0.29mm.
In the utility model, the radical of bare copper flat wire 1 is 2～4, is determined on a case-by-case basis.
Manufacturing process of the present utility model comprises the making heart yearn, single mica tape is wrapped, three operations of radial combination turnkey, it is high a lot of that the performance requirement of the more common winding wire of manufacture difficulty of heart yearn is wanted, must adopt the cold drawing → hard explained hereafter of annealing → increase, the tensile strength and the ductility of lead are moderate, and yield strength will be stablized and discreteness can not be too big, so just be unlikely to cause the lead bulge, the damage mica tape that pops, cause conductor electric leakage or short circuit.In addition, the mica coating that difficulty is exactly a mica tape comes off especially easily, and the mica coating that guarantees not damage in wrapped process on the mica is a most key ring, so just needs the device of the special wrapped tension force of adjusting, the assurance speed of a motor vehicle is steady, tension stability.The overlap joint of mica tape will be controlled at 50% of bandwidth, and the wrapped surface of mica tape must be smooth.It is limited also having the length of mica tape, just unavoidably occurs the connectivity problem of mica tape like this in wrapped process, and this adhesive tape just needs high temperature resistant and high pressure resistant and viscosity is constant or it is little to change.
The utility model respectively after special mica tape insulating barrier is wrapped, carries out the mica insulation composite conductor of radial combination by 2～4 bare copper flat wires again.The needs of transformer that the electric property under particular surroundings requires, motor, electrical equipment etc. have been satisfied.
Description of drawings
Fig. 1 is the utility model cross-sectional illustration.
Number in the figure: 1 is bare copper flat wire, and 2 is the mica tape insulating barrier, and 3 is insulating barrier.
Embodiment
Further specify the utility model in conjunction with the accompanying drawings below by embodiment.
Embodiment 1: as shown in Figure 1, the mica insulation composite conductor is made up of bare copper flat wire 1, mica tape insulating barrier 2 and insulating barrier 3, the every bare copper flat wire 1 outer mica tape insulating barrier 2 that all is surrounded with, constitute mica bag lenticular wire, this mica bag lenticular wire is superimposed along broadside, constitute core, core is coated with insulating barrier 3.
The mica insulation composite conductor is used for Siemens's motor winding wire, and concrete steps are as follows:
First procedure is selection, selects the Chilean CCC cathode copper of high-quality import, uses the up-drawing method equipment that newly advances to draw the oxygen-free copper bar of Φ 20; Milling train is carried out adjusting after the new maintenance tolerance between the three rollers positive and negative 2mm that tries hard to keep, and the Φ 6.5 hard copper bars that come out are wanted defectives such as rounding, bright and clean, no burr, greasy dirt.
Second operation work is a cold-drawing process, uses one-level nine moulds that bare wire is controlled at positive and negative 0.01mm, and mould must cooperate this procedure to finish wire quality control.
The three process annealing operation, because it is high that this product requires heart yearn, do not allow to use common well formula annealing furnace to carry out, and adopts the annealing pipe of similar coating apparatus to carry out annealing in process, must guarantee hardness at the positive and negative 10Mpa of 150Mpa deviation, exceed will making defective item and scrapping of standard.
The 4th procedure is the wrapped operation of mica, and emphasis is the adjustment of the speed of a motor vehicle, the adjusting of wrapped tension force, and the situation that whole then line process does not allow any damage bare wire surface takes place, and notes protecting mica layer surface quality and wrapped overlap joint size or the like.
Five processes is to receive the winding displacement operation, and the take-up reel that winding displacement uses must be to handle the clean tailormadepiston dish tool with dust prevention.Winding displacement is that the plastic film that will guarantee cushioning softness between every layer line guarantees that can not there be any damage on the mica tape top layer.
Claims (3)
1, a kind of mica insulation composite conductor, form by bare copper flat wire (1), mica tape insulating barrier (2) and insulating barrier (3), it is characterized in that the outer mica tape insulating barrier (2) that all is surrounded with of every bare copper flat wire (1), constitute flat wire with paper wrapped, this flat wire with paper wrapped is superimposed along broadside, constitute core, core is coated with insulating barrier (3).
2, mica insulation composite conductor according to claim 1, the thickness that it is characterized in that bare copper flat wire (1) is 0.8～1.5mm, width is 4～10mm; The thickness of mica tape insulating barrier (2) is 0.20～0.29mm.
3, mica insulation composite conductor according to claim 1, the radical that it is characterized in that bare copper flat wire (1) is 2～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200765559U CN201430005Y (en) | 2009-06-18 | 2009-06-18 | Mica insulation composite wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200765559U CN201430005Y (en) | 2009-06-18 | 2009-06-18 | Mica insulation composite wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201430005Y true CN201430005Y (en) | 2010-03-24 |
Family
ID=42033746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200765559U Expired - Lifetime CN201430005Y (en) | 2009-06-18 | 2009-06-18 | Mica insulation composite wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201430005Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877253A (en) * | 2010-07-12 | 2010-11-03 | 无锡锡洲电磁线有限公司 | Ultrathin 240-grade modified polyesterimide enameled rectangular copper wire |
-
2009
- 2009-06-18 CN CN2009200765559U patent/CN201430005Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877253A (en) * | 2010-07-12 | 2010-11-03 | 无锡锡洲电磁线有限公司 | Ultrathin 240-grade modified polyesterimide enameled rectangular copper wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100324 |
|
| CX01 | Expiry of patent term |