CN206532620U - A kind of half-hard state winding wire - Google Patents
A kind of half-hard state winding wire Download PDFInfo
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- CN206532620U CN206532620U CN201720293349.8U CN201720293349U CN206532620U CN 206532620 U CN206532620 U CN 206532620U CN 201720293349 U CN201720293349 U CN 201720293349U CN 206532620 U CN206532620 U CN 206532620U
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Abstract
The utility model is related to a kind of half-hard state winding wire, including conductor and the insulating barrier being coated on conductor, and insulating barrier includes the first coating set gradually from inside to outside, the first lapping layer, second coating, the 3rd coating, the second lapping layer, the 4th coating；First lapping layer, the second lapping layer are formed by glass fiber yarn is wrapped, and first coating, second coating are made up of polyester resin, and the 3rd coating, the 4th coating are made up of epoxy resin.In breakdown voltage >=500V, under conditions of length stretching 15%, insulating barrier will not lose tack, the control of glue content is 14% ~ 25% in insulation, 180 DEG C of heating insulating barriers, thermal weight loss can be controlled below 6%, after dip-coating epoxy resin, dielectric glass layer silk is not moved in hot, cold conditions, with good solvent resistance.
Description
Technical field
The utility model belongs to generator attachment technique field, and in particular to a kind of half-hard state winding wire.
Background technology
At present, what is had in the prior art uses soft state fine copper (TU2) lenticular wire of annealing as conductor material, with line gauge 2.00mm
Exemplified by × 4.50mm, tensile strength≤255N/mm2, elongation at break >=34%, the Ω mm of specific insulation≤0.0172412/ m.
Wire rod is soft, in the rotation of long-time high speed centrifugation, can be deformed, influence electrical machinery life.Use hard state fine copper（TU2）Lenticular wire
As conductor material, because wire rod matter is difficult to shape, resistivity is high, and electric conductivity is poor.
And the insulating barrier attachment characteristic of winding wire of the prior art is poor, easily loose, pliability is low, mechanical strength
It is low, easily ftracture, insulation characterisitic is not fine.For example, hydrogenerator is made up of rotor and stator, stator is operated in motor
When do not rotate, and the rotation that rotor does not stop in the operating condition, relatively low about 120 turns of the rotating speed of usual hydrogenerator/
Minute, but forward the hydrogenerator of motor, i.e. rotating speed more than 120 revs/min, rotation for some special high-revolving water
When the centrifugal force that produces easily make rotor windings deformation of products so that motor produces failure, therefore to used in rotor windings
Rotor windings of the material from intensity on more usual rotating speed propose new requirement.
The content of the invention
It is good that the technical problems to be solved in the utility model is to provide a kind of attachment characteristic, it is not easy to loose, and pliability is high, machine
Tool intensity is high, it is not easy to ftracture, and insulation characterisitic is well and the moderate half-hard state winding wire of conductor material softness degree.
In order to solve the above-mentioned technical problem, a kind of technical scheme of the utility model use is：
A kind of half-hard state winding wire, including conductor and the insulating barrier that is coated on conductor, insulating barrier include from inside to outside according to
The first coating of secondary setting, the first lapping layer, second coating, the 3rd coating, the second lapping layer, the 4th coating；First lapping layer,
Second lapping layer is formed by glass fiber yarn is wrapped, and first coating, second coating are made up of polyester resin, the 3rd coating, the 4th
Coating is made up of epoxy resin.
Preferably, the material of conductor is the copper containing silver-colored 0.08wt% ~ 0.12wt%.It is of the present utility model containing 0.08wt% ~
The copper conductor material of 0.12wt% silver is the material that in the market can be bought, and it can be such that conductor material is gone back in the state of being hardened
The good conductive characteristic under complete soft state can be reached（The Ω mm2/m of specific insulation≤0.017241）.
Preferably, conductor is rectangle lenticular wire, and its width is 2mm ~ 16mm, and thickness is 0.5mm ~ 3.5mm.
Preferably, the corner of rectangle lenticular wire is fillet, and the radius of fillet is 0.36mm-1.25mm.
Preferably, glass fiber yarn is 360 glass fiber yarns.
Preferably, the N/mm of the tensile strength Rm of rectangle copper strap wire >=2502, yield strength RP0.2≥200 N/mm2, fracture
Elongation >=12%.
Preferably, the thickness of the first lapping layer and the second lapping layer is respectively 0.08 ~ 0.10mm.
Preferably, the first lapping layer, the second lapping layer are in intersection coated state.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
Insulating barrier of the present utility model uses internal layer polyester resin, and the collocation mode of outer layer epoxy resin can make insulation
Layer keeps good attachment characteristic, and the polyester resin layer of soft inner can be such that insulating barrier is still kept in the state of complete drying
Good pliability, makes insulating barrier not ftractureed in the state of bending, the epoxy coating of outer layer, can be with reinforced insulation layer
Mechanical strength, while can increase the solvent resistant characteristic of insulated copper wire insulating barrier, makes insulated copper wire to grow in use
Its good insulation characterisitic of the holding of time.Use the glass fibre of 360 in insulating barrier, the concrete dynamic modulus characteristic of glass fibre,
Resinous coat can be made, which to be perfectly combined together, makes one not loose entirety of whole insulating barrier formation.Breakdown voltage >=
500V, under conditions of length stretching 15%, insulating barrier will not lose glue content in tack, insulation and control at 14% ~ 25%, 180 DEG C
Heat insulating barrier, thermal weight loss can be controlled below 6%, after dip-coating epoxy resin, dielectric glass layer silk in hot, cold conditions not
It is mobile, with good solvent resistance.
Brief description of the drawings
Fig. 1 is the concrete structure schematic diagram of half-hard state winding wire of the present utility model；
Fig. 2 is the structural representation after amplifying at the A in Fig. 1；
Wherein：1st, conductor；10th, fillet；R1, the first lapping layer；R2, the second lapping layer；T1, first coating；T2, second apply
Layer；T3, the 3rd coating；T4, the 4th coating.
Embodiment
As shown in Figure 1 and Figure 2, a kind of half-hard state winding wire, including conductor 1 and the insulating barrier being coated on conductor 1, insulation
Layer include set gradually from inside to outside first coating T1, the first lapping layer R1, second coating T2, the 3rd coating T3, second around
Covering R2, the 4th coating T4；First lapping layer R1, the second lapping layer R2 are formed by 360 glass fiber yarns are wrapped（Wherein,
One lapping layer R1, the second lapping layer R2 are in intersection coated state）, first coating T1, second coating T2 be made up of polyester resin, and
Three coating T3, the 4th coating T4 are made up of epoxy resin.
In this example, the material of conductor 1 is the copper containing silver-colored 0.10wt%.Conductor 1 is rectangle lenticular wire, and its width is 4.80mm,
Thickness 3.00mm.The corner 10 of rectangle lenticular wire is fillet, and the radius of fillet is 0.094mm.The tensile strength Rm of rectangle copper strap wire
For 263N/mm2, yield strength RP0.2For 234N/mm2, elongation at break be 25%.First lapping layer R1 and the second lapping layer thickness
Degree is respectively 0.09mm.
Half-hard state winding wire of the present utility model is processed by the following steps carried out successively and obtained：
1. the copper bar containing 0.08wt% ~ 0.12wt% silver, is taken；
2., the copper bar taken is polished；
3. extrusion process, is carried out by continuously extruded mode to the copper bar after polishing；
4., carry out the drawing of mould physics to the copper base material after extruding using draw-off gear to be molded, to obtain rectangle copper strap wire
Bare conductor；
5., wound to obtaining rectangle copper strap wire bare conductor；
6. coiled rectangle copper strap wire conductor, will be collected and carry out regular alignment polishing and wiring operations in case carrying out follow-up
Insulating barrier cladding work；
7. the rectangle copper strap wire conductor arranged, is used into polyester insulated resin（1448 insulating resins）Carry out first coating
T1 dip-coating processing；
8. first, is carried out to the rectangle copper strap wire conductor for having completed first coating T1 coatings using 360 glass fiber yarns
Lapping layer R1 cladding work；
9. polyester insulated resin, is used to the rectangle copper strap wire conductor for having completed the first lapping layer R1 claddings（1448 insulation
Resin）Carry out second coating T2 dip-coating processing；
10. the semi-finished product winding wire of second coating T2 coatings, has been completed using 270 ~ 280 DEG C of drying of baking oven, has been dried
Work is simultaneously wrapped during 8. 7. step can accelerate to infiltrate into step with the first coating T1 and second coating T2 of step 9. middle coating
The first lapping layer R1 inside；
, Peng Fengji is used to the semi-finished product winding wire after drying, cooling is blowed；
, to the semi-finished product winding wire after cooling use epoxy insulation resin（1449 insulating resins）Carry out the 3rd coating T3
Dip-coating processing；
, using 360 glass fiber yarns to completed the 3rd coating T3 coating semi-finished product winding wire carry out second around
Covering R2 cladding work；
, to completed the second lapping layer R2 cladding semi-finished product winding wire use epoxy insulation resin（1449 insulation trees
Fat）Carry out the 4th coating T4 dip-coating processing；
, completed using the drying of 270 ~ 280 DEG C of baking oven the semi-finished product winding wires of the 4th coating T4 coatings, dried
The 3rd coating T3 and the 4th coating T4 coated while work in step and step can accelerate to infiltrate into step around
Inside second lapping layer R2 of bag；
, Peng Fengji is used to the semi-finished product winding wire after drying, cooling is blowed；
, to completed refrigerating work procedure finished product winding wire carry out finished product collection.
In addition, step 8. in the first lapping layer R1 it is wrapped when direction and step in the second lapping layer R2 it is wrapped when
It is in opposite direction.
The property indices of half-hard state winding wire as obtained above are as follows：The N/mm of tensile strength Rm >=2502, surrender it is strong
Spend RP0.2≥200 N/mm2, elongation at break >=12%, 7a, 5b bending insulation do not ftracture, breakdown voltage >=500V, stretching is 15% exhausted
Edge layer does not lose glue content control in tack, insulating barrier and controlled in 14% ~ 25%, 180 DEG C of heating insulation thermal weight loss below 6%,
After epoxy resin-impregnated, dielectric glass layer silk is hot, cooling is not moved, with good solvent resistance, specific insulation
≤ 0.017241 Ω mm2/m.
To sum up, the utility model is polished to copper bar, the impurity such as oxide layer, the greasy dirt on copper bar surface is removed, so as to subtract
The probability of copper line surface corrugate, Improving The Quality of Products are extruded less.The manufacture of conductor uses and first squeezes out blank, then mould
Physics draws out the mode of conductor, and the control of the decrement on width dimensions and thickness between extruding stock and finished product exists
Between 0.15mm ~ 0.20mm, the purpose that soft state body is changed into half-hard state conductor is reached；Conductor material softness degree is moderate, will not
Deformed because excessively soft in prolonged rotary course, the forming characteristic of wire rod will not be influenceed firmly very much；Traditional annealing process
Because annealing from heating and heat preservation to cooling, a collection of conductor, which is come out of the stove, at least needs 2 day time, so does more traditional annealing process, one
The time control that batch conductor is made can reduce production hour within 1 day with first mate's degree, improve production compared with rate.In addition step 10.,
Step and step three process, make the insulating barrier of dipping resin solidify more thorough, thereby may be ensured that insulated copper wire
Thermal weight loss can reach very low level under 180 DEG C of conditions of high temperature, while the solvent resistant characteristic of reinforced insulation layer.
The utility model is described in detail above, its object is to allow the personage for being familiar with this art can be much of that
Solve content of the present utility model and be carried out, protection domain of the present utility model, and the utility model can not be limited with this
The above embodiments are not limited to, all equivalent change or modifications made according to Spirit Essence of the present utility model should all cover
Within protection domain of the present utility model.
Claims (7)
1. a kind of half-hard state winding wire, including conductor（1）Be coated on the conductor（1）On insulating barrier, it is characterised in that：Institute
State the first coating that insulating barrier includes setting gradually from inside to outside（T1）, the first lapping layer（R1）, second coating（T2）, the 3rd apply
Layer（T3）, the second lapping layer（R2）, the 4th coating（T4）；First lapping layer（R1）, the second lapping layer（R2）By glass fibers
Yarn is wrapped forms for dimension, the first coating（T1）, second coating（T2）It is made up of polyester resin, the 3rd coating（T3）,
Four coatings（T4）It is made up of epoxy resin.
2. half-hard state winding wire according to claim 1, it is characterised in that：The conductor（1）Material to contain silver
0.08wt% ~ 0.12wt% copper.
3. half-hard state winding wire according to claim 1 or 2, it is characterised in that：The conductor（1）For rectangle lenticular wire, its
Width is 2mm ~ 16mm, and thickness is 0.5mm ~ 3.5mm.
4. half-hard state winding wire according to claim 1, it is characterised in that：The glass fiber yarn is 360 glass fibers
Tie up yarn.
5. half-hard state winding wire according to claim 1, it is characterised in that：The N/ of the tensile strength Rm of the conductor >=250
mm2, yield strength RP0.2≥200 N/mm2, elongation at break >=12%.
6. half-hard state winding wire according to claim 1, it is characterised in that：First lapping layer（R1）It is wrapped with second
The thickness of layer is respectively 0.08 ~ 0.10mm.
7. half-hard state winding wire according to claim 1, it is characterised in that：First lapping layer（R1）, it is second wrapped
Layer（R2）In intersection coated state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720293349.8U CN206532620U (en) | 2017-03-24 | 2017-03-24 | A kind of half-hard state winding wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720293349.8U CN206532620U (en) | 2017-03-24 | 2017-03-24 | A kind of half-hard state winding wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876015A (en) * | 2017-03-24 | 2017-06-20 | 苏州贯龙电磁线有限公司 | A kind of half-hard state winding wire and its processing technology |
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2017
- 2017-03-24 CN CN201720293349.8U patent/CN206532620U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876015A (en) * | 2017-03-24 | 2017-06-20 | 苏州贯龙电磁线有限公司 | A kind of half-hard state winding wire and its processing technology |
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