CN104851485A - Sealed type water-resistant electromagnetic wire - Google Patents
Sealed type water-resistant electromagnetic wire Download PDFInfo
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- CN104851485A CN104851485A CN201510260755.XA CN201510260755A CN104851485A CN 104851485 A CN104851485 A CN 104851485A CN 201510260755 A CN201510260755 A CN 201510260755A CN 104851485 A CN104851485 A CN 104851485A
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- composite film
- type water
- insulating barrier
- flat conductor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention provides a sealed type water-resistant electromagnetic wire. The sealed type water-resistant electromagnetic wire comprises a copper flat conductor and an insulation layer clad on the copper flat conductor. The insulation layer comprises a first insulation layer and a second insulation layer which successively wrap the copper flat conductor from the inside to the outside. The first insulation layer is a composite film layer formed by wrapping a polyimide-fluorine 46 composite film belt with fluorine-coated double surfaces on the copper flat conductor, and the second insulation layer is a glass fiber layer formed by wrapping glass fibers dipped with insulating varnish or a insulating resin on the first insulation layer. The sealed type water-resistant electromagnetic wire is good in insulation sealing performance and excellent in water resistance performance, and can work stably in water for long time, thereby having good application prospect.
Description
Technical field
the present invention relates to motor, electric insulation winding field, relate more specifically to a kind of closed type water-resistant magnet wire.
Background technology
electromagnetic wire is mainly used in the winding of transformer, motor and various electric equipment, electromagnetic wire of the prior art is coated insulation layer on conductor, usually has following shortcoming: (1) insulation system is unreasonable, and the closure of electromagnetic wire is bad, facile hydrolysis, water resistance is not good; (2) adopt imported material, manufacturing cost is high, is not suitable for generally using.Thus, need a kind of insulation and water resistance badly all better, and cost is lower and can blanket electromagnetic wire.
Summary of the invention
for overcoming the problems referred to above of the prior art, the invention provides a kind of water-resistant type electromagnetic wire, it is applicable to the harsh environments such as submersible electric machine with oil, electromagnetic stirrer, and water-tolerant, the medium-term and long-term work of water can be placed in.
the technical solution used in the present invention is:
on the one hand, the invention provides a kind of closed type water-resistant magnet wire, comprise copper flat conductor and be coated on the insulating barrier on copper flat conductor, insulating barrier comprises and is coated on the first insulating barrier on copper flat conductor and the second insulating barrier from inside to outside successively, first insulating barrier is the wrapped composite film layer formed on copper flat conductor of polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine, and the second insulating barrier is by the wrapped glass layer formed on the first insulating barrier of glass fibre being impregnated with insulating varnish or insulation resin.Wherein, the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine is polyimide film double-coated perfluoroethylene-propylene (F46) emulsion, and forms through high temperature sintering, has excellent water resistance.
further, composite film layer at least comprises the first composite film layer and the second composite film layer.Two-layer composite film layer forms by the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine is wrapped respectively.
preferably, the lapping direction of the THIN COMPOSITE film strips in the first composite film layer and the second composite film layer is contrary.Lapping direction is contrary, and make two-layer laminated film thickness even, lap seam does not overlap, good seal, excellent electrical properties.
when composite film layer comprise two-layer more than time, the lapping direction of the THIN COMPOSITE film strips in every adjacent two layers is contrary, gap (also referred to as lap seam) wrapped like this can crested live, ensure that the sealing of insulating barrier.
further, glass layer at least comprises the first glass layer and the second glass layer.Layer glass fibrage forms by the glass fibre being impregnated with insulating varnish or insulation resin is wrapped respectively.
preferably, the lapping direction of the glass fibre in the first glass layer and the second glass layer is contrary.Lapping direction is contrary, and make two fibre layers thickness even, lap seam does not overlap, better tightness.
impregnated of the double glazing fibrage of insulating varnish or resin; adopt contrary reverse wrapped mode; and two-layer lap seam does not overlap; increase the waterproof effect of electromagnetic wire, improve dielectric strength and the pliability of glass layer, compared with single-layer glass fiber layer of the prior art; effect improved highly significant; and not easy to crack, not easily fracture of wire, comparatively individual layer plays better protected effect.
further, the packet stack rate of wrapped in composite film layer polyimide-fluorine 46 THIN COMPOSITE film strips is 45 ~ 66%.This packet stack rate can ensure the superior electrical performance of electromagnetic wire.
further, the width a of the longitudinal section of copper flat conductor is 0.50 ~ 6.00 mm, length b is 2.00 ~ 16.00 mm.
preferably, the thickness A-a of composite film layer is 0.30-0.60 mm.This Thickness Ratio insulating barrier of the prior art is thinner, but can ensure good insulation property
preferably, the thickness A of glass layer '-A is 0.15-0.25 mm.Glass fibre can be 80,160,250 or 360.
preferably, insulating varnish or insulating resin are for being selected from epoxies, modified epoxy class, polyesters, modified poly ester class, polyester-imide class or modified poly ester imines class insulating varnish or insulating resin wherein epoxies comprise modified epoxy class insulating varnish or resin, polyesters comprises modified poly ester class insulating varnish or resin, and polyester-imide class comprises modified poly ester imines class insulating varnish or resin.
preferably, be sealed on conductor in the mode of high-frequency heating after the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine is wrapped, conductor is formed the first insulating barrier of sealing.
preferably, adopt the mode of radiation heating by insulating varnish or insulating resin solidification, form glass fibre second insulating barrier, protection can be provided to the first insulating barrier.
compared with prior art, the present invention has following advantages: the invention provides a kind of closed type water-resistant magnet wire, it adopts polyimide-fluorine 46 laminated film of thinner two-sided painting fluorine, alleviate film thickness and insulating properties is good, contrary and the lap seam of adjacent layer (gap of wrapped generation) of the polyimide-fluorine 46 laminated film lapping direction of adjacent two-sided painting fluorine does not overlap, and makes better tightness.Adjacent glass fibers layer lapping direction in outer second fibrage is also contrary, and the gap of the wrapped generation of adjacent layer does not also overlap, and further ensures tectal sealing, can provide better protection for inner insulation layer.Glass layer is also impregnated with insulating varnish or resin; glass layer entirety adds the waterproof effect of electromagnetic wire, and the wrapped mode of double-deck rightabout makes the dielectric strength of glass layer and pliability all better than individual layer, not easy to crack; not easily fracture of wire, plays better protective effect than individual layer.
Accompanying drawing explanation
fig. 1 is the Longitudinal cross section schematic of electromagnetic wire of the present invention;
fig. 2 is the dissection schematic diagram of electromagnetic wire of the present invention.
in figure: 1, copper flat conductor; 2, the first insulating barrier; 3, the second insulating barrier.
Embodiment
below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, is easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
consult Fig. 1-2, the insulating barrier that closed type water-resistant magnet wire of the present invention comprises copper flat conductor 1 and is coated on copper flat conductor 1, wherein insulating barrier comprises the first insulating barrier 2 and the second insulating barrier 3 be coated on successively from inside to outside on copper flat conductor 1, first insulating barrier 2 is the wrapped composite film layer formed on copper flat conductor 1 of the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine, and the second insulating barrier 3 is by the wrapped glass layer formed on the first insulating barrier of glass fibre being impregnated with insulating varnish or insulation resin.Insulating varnish or resin are selected from epoxies, polyesters or polyester-imide class insulating varnish or resin, wherein epoxies can be modified epoxy class insulating varnish or resin, polyesters can be modified poly ester class insulating varnish or resin, and polyester-imide class can be modified poly ester imines class insulating varnish or resin.In addition, the width a of the longitudinal section of copper flat conductor 1 is 0.50 ~ 6.00 mm, length b is 2.00 ~ 16.00 mm, and four angles of copper flat conductor are arc-shaped.
embodiment 1
a kind of closed type water-resistant magnet wire, comprises copper flat conductor 1, the first insulating barrier 2 and the second insulating barrier 3 be coated on copper flat conductor 1, and the width a of the longitudinal section of copper flat conductor 1 is 2.50mm, length b is 9.00mm.First insulating barrier 2 is the wrapped composite film layer formed on copper flat conductor 1 of the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine, and the second insulating barrier 3 is by the wrapped glass layer formed on described first insulating barrier 2 of glass fibre being impregnated with insulating varnish or insulation resin.Particularly, copper flat conductor 1 is outer also can be described as 1/2 stacked package or half-stack package with 45% ~ 50%() the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine of packet stack rate wrapped one deck 0.0375mm thickness, outer 2/3 stacked package is also can be described as with 63% ~ 66%(again at it) the polyimide-fluorine 46 THIN COMPOSITE film strips of the two-sided painting fluorine of packet stack rate stacked package one deck 0.0375mm thickness, in two-layer laminated film, THIN COMPOSITE film strips is wrapped in the opposite direction.Second insulating barrier 3 comprises the wrapped layer glass fibrage at the first insulating barrier outer 2, i.e. the first glass layer and the second glass layer, glass layer is impregnated with insulating varnish or resin, wherein wrapped two-layer 160 glass fibres in the opposite direction, dipping lacquer 180 class F insulation paint or resin, baked and cured, total nominal insulation thickness is: 0.60, and thickness range is: 0.55 ~ 0.60mm.
embodiment 2
a kind of closed type water-resistant magnet wire, comprises copper flat conductor 1, the first insulating barrier 2 and the second insulating barrier 3 be coated on copper flat conductor 1, and the width a of the longitudinal section of copper flat conductor 1 is 4.00mm, length b is 8.50mm.First insulating barrier 2 is the wrapped composite film layer formed on copper flat conductor 1 of the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine, and the second insulating barrier 3 is by the wrapped glass layer formed on the first insulating barrier 2 of glass fibre being impregnated with insulating varnish or insulation resin.Particularly, copper flat conductor is outer also can be described as 2/3 stacked package with 63% ~ 66%() the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine of packet stack rate wrapped one deck 0.0375mm thickness, outer 1/2 stacked package or half-stack package is also can be described as with 45% ~ 50%(again at it) the polyimide-fluorine 46 THIN COMPOSITE film strips of the two-sided painting fluorine of packet stack rate stacked package one deck 0.0375mm thickness, in two layers of polyimide laminated film, THIN COMPOSITE film strips is wrapped in the opposite direction.Second insulating barrier 3 comprises wrapped layer glass fibrage outside the first insulating barrier, i.e. the first glass layer and the second glass layer, glass layer is impregnated with insulating varnish or resin, wherein wrapped two-layer 250 glass fibres in the opposite direction, dipping lacquer 180 class F insulation paint or resin, baked and cured, total nominal insulation thickness is: 0.60, and thickness range is: 0.55mm ~ 0.60mm.
embodiment 3
a kind of closed type water-resistant magnet wire, comprises copper flat conductor 1, the first insulating barrier 2 and the second insulating barrier 3 be coated on copper flat conductor 1, and the width a of the longitudinal section of copper flat conductor 1 is 2.92mm, length b is 12 mm.First insulating barrier 2 is the wrapped composite film layer formed on copper flat conductor 1 of the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine, and the second insulating barrier 3 is by the wrapped glass layer formed on the first insulating barrier 2 of glass fibre being impregnated with insulating varnish or insulation resin.Particularly, copper flat conductor 1 is outer also can be described as 2/3 stacked package with 63% ~ 66%() the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine of packet stack rate wrapped one deck 0.0375mm thickness, outer 2/3 stacked package is also can be described as with 63% ~ 66%(again at it) the polyimide-fluorine 46 THIN COMPOSITE film strips of the two-sided painting fluorine of packet stack rate stacked package one deck 0.0375mm thickness, in two layers of polyimide laminated film, THIN COMPOSITE film strips is wrapped in the opposite direction.Second insulating barrier 3 comprises wrapped layer glass fibrage outside the first insulating barrier 2, i.e. the first glass layer and the second glass layer, glass layer is impregnated with insulating varnish or resin, wherein wrapped two-layer 160 glass fibres in the opposite direction, dipping lacquer 180 class F insulation paint or resin, baked and cured, total nominal insulation thickness is: 0.65, and thickness range is: 0.60mm ~ 0.65 mm.
embodiment 4
a kind of closed type water-resistant magnet wire, comprises copper flat conductor 1, the first insulating barrier 2 and the second insulating barrier 3 be coated on copper flat conductor 1, and the width a of the longitudinal section of copper flat conductor 1 is 2.50 mm, and width is 10 mm.First insulating barrier 2 is the wrapped composite film layer formed on copper flat conductor 1 of the polyimide-fluorine 46 THIN COMPOSITE film strips of two-sided painting fluorine, and the second insulating barrier 3 is by the wrapped glass layer formed on the first insulating barrier 2 of glass fibre being impregnated with insulating varnish or insulation resin.Particularly, copper flat conductor 1 is outer also can be described as 2/3 stacked package with 45% ~ 50%() the polyimide-fluorine F46 THIN COMPOSITE film strips of two-sided painting fluorine of packet stack rate wrapped one deck 0.0375mm thickness, outer 1/2 stacked package or half-stack package is also can be described as with 45% ~ 50%(again at it) the polyimide-fluorine 46 THIN COMPOSITE film strips of the two-sided painting fluorine of packet stack rate stacked package one deck 0.0375mm thickness, in two layers of polyimide laminated film, THIN COMPOSITE film strips is wrapped in the opposite direction.Second insulating barrier 3 comprises wrapped layer glass fibrage outside the first insulating barrier 2, namely, first glass layer and the second glass layer, glass layer is impregnated with insulating varnish or resin, wherein wrapped two-layer 160 glass fibres in the opposite direction, dipping lacquer 180 class F insulation paint or resin, baked and cured, total nominal insulation thickness is: 0.50, and thickness range is: 0.45 ~ 0.50 mm.
closed type water-resistant magnet wire of the present invention has extraordinary sealing, resistance to water and temperature tolerance.
the performance of electromagnetic wire of the present invention is as follows:
the bilateral insulation thickness scope that electromagnetic wire is total: 0.45mm ~ 0.85mm.
insulation tack: stretch 10%, the part that insulating barrier loses tack is no more than 1/2 conductor broadside width.
insulation pliability: 4a, 4b bend insulating barrier and do not ftracture to revealing copper conductor, not stratified.
insulation electrical performance: carry out steel ball method breakdown voltage test after 4a, 4b are bending, puncture voltage measured value should at more than 10000V.
adopt aluminum foil method to carry out straight line breakdown voltage test, puncture voltage measured value is at more than 10000V.
heat-resisting punching performance: 4a, 4b bend in baking oven 240 DEG C without offspring, and heat 0.5 hour, insulating barrier is not stratified, does not ftracture to revealing copper conductor.
insulated enclosure resistance to water: by electromagnetic wire continuous dipping in the boiling water of boiling 120 hours, with the test of 2500V megger, electromagnetic wire insulation resistance>=2000M Ω in 1min clock.
by electromagnetic wire continuous dipping in the boiling water of boiling 120 hours, after rear taking-up sample is cooled to room temperature, 4a, 4b are bending carried out breakdown voltage test, and puncture voltage measured value is at more than 10000V.
above specific embodiment of the present invention is illustrated; but protection content of the present invention is not only limited to above embodiment; in art of the present invention, the usual knowledge of a GPRS, just can carry out diversified change within the scope of its technology main idea.
Claims (10)
1. a closed type water-resistant magnet wire, comprise copper flat conductor (1) and be coated on the insulating barrier on described copper flat conductor (1), it is characterized in that: described insulating barrier comprises and is coated on the first insulating barrier (2) on described copper flat conductor (1) and the second insulating barrier (3) from inside to outside successively, the polyimide-fluorine 46 THIN COMPOSITE film strips that described first insulating barrier (2) is two-sided painting fluorine is wrapped at the upper composite film layer formed of described copper flat conductor (1), described second insulating barrier (3) is wrapped at the upper glass layer formed of described first insulating barrier (2) by the glass fibre being impregnated with insulating varnish or insulation resin.
2. closed type water-resistant magnet wire according to claim 1, is characterized in that: described composite film layer at least comprises the first composite film layer and the second composite film layer.
3. closed type water-resistant magnet wire according to claim 2, is characterized in that: the lapping direction of the THIN COMPOSITE film strips in described first composite film layer and the second composite film layer is contrary.
4. closed type water-resistant magnet wire according to claim 1, is characterized in that: described glass layer at least comprises the first glass layer and the second glass layer.
5. closed type water-resistant magnet wire according to claim 4, is characterized in that: the lapping direction of the glass fibre in described first glass layer and the second glass layer is contrary.
6. closed type water-resistant magnet wire according to claim 1, is characterized in that: the packet stack rate of polyimide-fluorine 46 THIN COMPOSITE film strips wrapped in described composite film layer is 45 ~ 66%.
7. closed type water-resistant magnet wire according to claim 1, is characterized in that: the width a of the longitudinal section of described copper flat conductor (1) is 0.50 ~ 6.00 mm, length b is 2.00 ~ 16.00 mm.
8. closed type water-resistant magnet wire according to claim 1, is characterized in that: the thickness A-a of described composite film layer is 0.30 ~ 0.60 mm.
9. closed type water-resistant magnet wire according to claim 1, is characterized in that: the thickness A of described glass layer '-A is 0.15-0.25 mm.
10. closed type water-resistant magnet wire according to claim 1, it is characterized in that: described insulating varnish or insulating resin for being selected from epoxies, modified epoxy class, polyesters, modified poly ester class, polyester-imide class or modified poly ester imines class insulating varnish or insulating resin.
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| CN201510260755.XA CN104851485A (en) | 2015-05-21 | 2015-05-21 | Sealed type water-resistant electromagnetic wire |
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Cited By (4)
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| CN106337661A (en) * | 2016-09-30 | 2017-01-18 | 大庆市华禹石油机械制造有限公司 | Multilayer wear-resisting carbon fiber continuous sucker rod covered by polyethylene layer |
| CN108615576A (en) * | 2018-04-18 | 2018-10-02 | 苏州贯龙电磁线有限公司 | A kind of half-hard state winding wire and preparation method thereof |
| CN110675989A (en) * | 2019-09-30 | 2020-01-10 | 江苏朗顺电工电气有限公司 | Preparation method of winding wire for high-performance extra-high voltage power transmission and transformation product |
| CN114038612A (en) * | 2020-12-16 | 2022-02-11 | 金杯电工电磁线有限公司 | high-PDIV insulated electromagnetic wire and preparation method and application thereof |
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| CN106337661A (en) * | 2016-09-30 | 2017-01-18 | 大庆市华禹石油机械制造有限公司 | Multilayer wear-resisting carbon fiber continuous sucker rod covered by polyethylene layer |
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| CN108615576A (en) * | 2018-04-18 | 2018-10-02 | 苏州贯龙电磁线有限公司 | A kind of half-hard state winding wire and preparation method thereof |
| CN110675989A (en) * | 2019-09-30 | 2020-01-10 | 江苏朗顺电工电气有限公司 | Preparation method of winding wire for high-performance extra-high voltage power transmission and transformation product |
| CN114038612A (en) * | 2020-12-16 | 2022-02-11 | 金杯电工电磁线有限公司 | high-PDIV insulated electromagnetic wire and preparation method and application thereof |
| CN114038612B (en) * | 2020-12-16 | 2024-03-22 | 金杯电工电磁线有限公司 | High PDIV insulating electromagnetic wire and preparation method and application thereof |
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Application publication date: 20150819 |