CN201508700U - Paperless insulating single-side self-adhesive acetal enamel-cover copper-sliver alloy transposed semi-hard lead - Google Patents

Paperless insulating single-side self-adhesive acetal enamel-cover copper-sliver alloy transposed semi-hard lead Download PDF

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Publication number
CN201508700U
CN201508700U CN 200920049509 CN200920049509U CN201508700U CN 201508700 U CN201508700 U CN 201508700U CN 200920049509 CN200920049509 CN 200920049509 CN 200920049509 U CN200920049509 U CN 200920049509U CN 201508700 U CN201508700 U CN 201508700U
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China
Prior art keywords
copper
self
acetal
transposed
silver alloy
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Expired - Lifetime
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CN 200920049509
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Chinese (zh)
Inventor
徐进法
曹永义
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Wuxi Xizhou Magnet Wires Co Ltd
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Wuxi Xizhou Magnet Wires Co Ltd
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Priority to CN 200920049509 priority Critical patent/CN201508700U/en
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  • Coils Of Transformers For General Uses (AREA)

Abstract

The utility model provides a paperless insulating single-side self-adhesive acetal enamel-cover copper-sliver alloy transposed semi-hard lead. The figure thereof is small-sized and basically consistent, a transformer coil wound thereby can effectively improve the utilization ratio of the winding space, and reduce the volume of the transformer. The paperless insulating single-side self-adhesive acetal enamel-cover copper-sliver alloy transposed semi-hard lead comprises a transposed core, the outer portion of the transposed core is wound by polyester net-belt, the transposed core comprises a plurality of copper-sliver alloy leads comprising copper-silver alloy conductors, and the outer portion of the copper-silver alloy conductor is coated with acetal paint, the outer portion of the acetal paint is coated with self-adhesive paint, and is characterized in that: the self-adhesive paint is coated at the wide surface of the copper-silver alloy conductor.

Description

A kind of no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor
(1) technical field
The utility model relates to power transformer transposed conductor technical field, is specially a kind of no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor.
(2) background technology
The transposed conductor that present power transformer is used mainly contains paper insulation self-adhesion acetal paint copper-clad transposed semi-hard conductor, and its heatproof index is up to 120, σ 0.2〉=120N/mm 2, the highest 260N/mm that is no more than 2, be bonded to an integral body by coil after the dried, the impact resistance height of coil.Under the power transformer normal operation, the ambient temperature of transformer is approximately 98 ℃~105 ℃, its under long-time high temperature barbecue, semihard yield strength σ 0.2Drop to 100N/mm 2Below and can't reach the SMYS of original design again, the coil integral intensity that relies on the coil epoxy self-bonding to form fully can not satisfy the requirement of high voltage large capcity transformer to the shock-resistant ability of coil far away; And the wrapped number of plies of insulating paper is many, wrapped closely the time, can produce local oil sac phenomenon, has a strong impact on the radiating effect of coil.Therefore, power transformer replaces paper insulation self-adhesion acetal paint copper-clad transposed semi-hard conductor with the paperless insulation self-adhesive acetal enamelled copper-silver alloy transposed semihard lead gradually with transposed conductor now, its conductor is made by Kufil, the Kufil conductor is compared with oxygen-free copper, that its recrystallization temperature and hot mastication temperature are wanted is high 80 ℃~and about 100 ℃, and have favorable conductive heat conduction, can effectively improve the radiating effect of coil, thereby improve the coil working temperature; It adopts the polyester guipure as insulating material, this polyester guipure adopts polyester rope and nylon fiber through working out, have thermal contraction performance and mechanical strength, adopt this polyester guipure lapped insulation thickness little, coiling is tight, can carry out the single or double insulation and strengthen in the transposed conductor production process according to the insulating requirements of coil, neither influence radiating effect, can improve the insulation property of coil again.But, because the self-adhesion film thickness that the general four sides of paperless insulation self-adhesive acetal enamelled copper-silver alloy transposed semihard lead is both sides is about 0.06mm, see accompanying drawing 1, behind its coiling, coil axes to the width of cloth to size all than the big 10mm~30mm of theoretical value, increase the volume of transformer, increased the cost of transformer; And the paperless insulation self-adhesive acetal enamelled copper-silver alloy transposed semihard lead carries out in the dry run at 105 ℃~120 ℃, ruckbildung can appear in the self-adhesion enamelled coating that is present between the transposed conductor core, axially and the width of cloth to being under certain pressure effect, the attenuation of self-adhesion enamelled coating, unnecessary self-adhesive layer trickles between the space of transposed conductor, can form the lacquer knurl, phenomenon is put in generation office, influences the running quality of transformer; And self-adhesive layer is too much, can hinder the heat dissipation of conductor, has influenced the cooling effect of transformer oil to coil, can't amplitude peak reduces the temperature rise of coil.
(3) summary of the invention
At the problems referred to above, the utility model provides a kind of no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor, little and the basically identical of its overall dimension utilizes the transformer coil of its coiling can effectively raise the winding space utilance, has reduced volume of transformer.
Its technical scheme is such, it comprises the transposition core, the outside wrapped polyester guipure of described transposition core, described transposition core comprises several copper-silver alloy conducting wires, described copper-silver alloy conducting wire comprises the Kufil conductor, described Kufil conductor is externally coated with acetal paint, and described acetal paint outside scribbles the self-adhesion lacquer, it is characterized in that: described self-adhesion lacquer is applied to wide of described Kufil conductor.
It is further characterized in that: the width of described self-adhesion lacquer be wide of lead width 1/3~2/3; Described self-adhesion lacquer thickness is 0.03mm~0.05mm.
Compare with the paperless insulation self-adhesive acetal enamelled copper-silver alloy transposed semihard lead, the beneficial effects of the utility model are: its minimizing and remove unnecessary self-adhesive layer, make overall dimension reduce 0.10mm~0.40mm, the overall dimension basically identical, the transformer coil of this product coiling, effectively raise the winding space utilance, reduced volume of transformer; The coil of its coiling is handled through normal heat, and coil can not produce the lacquer knurl of the excessive formation of self-adhesive layer and the defective of wedge angle, has reduced office and has put phenomenon, has improved the radiating effect of transformer oil, guarantees that the normal service life and the quality of transformer reduces; The minimizing of film thickness in addition, also improved the radiating effect of this product itself, thereby reach the purpose that improves the coil radiating effect, reduced the temperature rise of coil, circulation and eddy current loss have been reduced, allow transformer 80 ℃~150 ℃ long-time overload operations of high temperature, high temperature long-time running mechanical performance does not descend.
(4) description of drawings
Fig. 1 is a paperless insulation self-adhesive acetal enamelled copper-silver alloy transposed semihard conductor structure schematic diagram;
Fig. 2 does not have paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor structural representation for the utility model.
(5) embodiment
See Fig. 2, the utility model comprises the transposition core, the outside wrapped polyester guipure 4 of transposition core, the transposition core comprises several copper-silver alloy conducting wires, copper-silver alloy conducting wire comprises Kufil conductor 1, and Kufil conductor 1 is externally coated with acetal paint 2, and acetal paint 2 outsides scribble self-adhesion lacquer 3; Wherein self-adhesion lacquer 3 is applied to 1 wide of Kufil conductor; The width of self-adhesion lacquer be wide of copper-silver alloy conducting wire width 1/3~2/3; Self-adhesion lacquer thickness is 0.03mm~0.05mm.
No single-side self-adhesive acetal enamel-cover copper silver alloy transposed semi-hard conductor of the present utility model, by UPCAST explained hereafter Kufil copper bar, through enamel-cover, transposition processing also adopts the polyester guipure wrapped, can be according to the requirement of insulation, at transposed conductor single or double reinforced insulation, and the no single-side self-adhesive acetal enamel-cover copper silver alloy transposed semi-hard conductor of formation, the existing good electric property of this product, mechanical performance, also has good heat bonding intensity, the characteristics of thermal contraction performance and good heat dissipation effect, and adopt online high pressure paint film continuous meter by the vdct withstand voltage properties, guarantee that paint film can be not impaired; Dielectric loss tester is tested the state of cure of paint film by capacitance principle, guarantees quality stability and the uniformity of single face tack acetal paint wire copper-clad flat line.

Claims (3)

1. no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor, it comprises the transposition core, the outside wrapped polyester guipure of described transposition core, described transposition core comprises several copper-silver alloy conducting wires, described copper-silver alloy conducting wire comprises the Kufil conductor, described Kufil conductor is externally coated with acetal paint, and described acetal paint outside scribbles the self-adhesion lacquer, it is characterized in that: described self-adhesion lacquer is applied to wide of described Kufil conductor.
2. according to the described a kind of no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor of claim 1, it is characterized in that: the width of described self-adhesion lacquer be wide of lead width 1/3~2/3.
3. according to the described a kind of no paper insulation single side self acetal paint copper-clad silver alloy transposed semi-hard conductor of claim 2, it is characterized in that: described self-adhesion lacquer thickness is 0.03mm~0.05mm.
CN 200920049509 2009-09-28 2009-09-28 Paperless insulating single-side self-adhesive acetal enamel-cover copper-sliver alloy transposed semi-hard lead Expired - Lifetime CN201508700U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200920049509 CN201508700U (en) 2009-09-28 2009-09-28 Paperless insulating single-side self-adhesive acetal enamel-cover copper-sliver alloy transposed semi-hard lead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200920049509 CN201508700U (en) 2009-09-28 2009-09-28 Paperless insulating single-side self-adhesive acetal enamel-cover copper-sliver alloy transposed semi-hard lead

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CN201508700U true CN201508700U (en) 2010-06-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012113851A1 (en) * 2011-02-24 2012-08-30 Asta Elektrodraht Gmbh Continuously transposed conductor
CN103474177A (en) * 2013-09-24 2013-12-25 江苏句容联合铜材有限公司 Processing method of self-adhesive transposed wire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012113851A1 (en) * 2011-02-24 2012-08-30 Asta Elektrodraht Gmbh Continuously transposed conductor
CN103474177A (en) * 2013-09-24 2013-12-25 江苏句容联合铜材有限公司 Processing method of self-adhesive transposed wire

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Granted publication date: 20100616