CN201242898Y

CN201242898Y - Insulated conductor and insulated combined conductor

Info

Publication number: CN201242898Y
Application number: CNU2008200345596U
Authority: CN
Inventors: 卢之云; 周志云
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-25
Filing date: 2008-04-25
Publication date: 2009-05-20
Anticipated expiration: 2018-04-25

Abstract

The utility model relates to an insulation conductor and a combined insulation conductor, in particular to a winding wire, which comprises a wire core and a wrap belt, at least two layers of Kevlar insulation paper wrap belts are arranged outside the wire core, the width of each Kevlar insulation paper wrap belt is half of the wire core perimeter plus 5-8mm. The utility model adopts Kevlar insulation paper which is a rigid polymer material in contraposition arrangement, the scientific name of the Kevlar insulation paper is Aramid fiber 1414 which has the characteristics that the Nomex paper does not have, such as the chemical resistance, fire resistance and fatigue resistance. Just like the Nomex paper, the Kevlar insulation paper also has the characteristic of environmental protection with easy decomposition after the life period. For the width of the wrap belt, optimal design is adopted to reduce unnecessary waste or insulation performance on the basis of ensuring insulation property with most economical material using.

Description

Insulated conductor and insulation composite conductor

Technical field

The utility model relates to a kind of winding wire, relates in particular to a kind of paper insulation band formula insulated conductor and insulation composite conductor that is used for winding.

Background technology

Along with the raising of electric pressures such as motor, transformer, reactor, the increase of separate unit and power system capacity, and the expansion of application.Requirement to its core material winding wire is also more and more higher, be badly in need of to solve the problem that general winding wire does not possess performances such as high temperature resistant, resistance to chemical attack, fire prevention, antifatigue, high mechanical properties simultaneously.Simultaneously, the utilization of winding wire band in the past is economical inadequately, can increase cost.

The utility model content

The utility model is at above problem, a kind of performances such as high temperature resistant, resistance to chemical attack, fire prevention, antifatigue, high mechanical properties that possess simultaneously are provided, can satisfy High-Voltage Electrical Appliances work requirements under different severe environments, and the insulated conductor of good economy performance and insulation composite conductor.

The technical solution of the utility model is: comprise core, band, core is established two-layer Kev outward at least and is drawn the insulating paper band, and it is that core 1/2 girth adds 5～8mm that Kev draws the width of insulating paper band.

Draw at core and Kev and also to be provided with the polyester-imide layer between the insulating paper band.

Described band shape in the shape of a spiral twines, and two-layer Kev draws insulating paper band rotation direction opposite.

Described band shape in the shape of a spiral twines, and two-layer Kev draws insulating paper band rotation direction identical.

The technical scheme of the utility model insulation composite conductor is: become the assemble line core side by side by at least two described insulated conductors, combination core peripheral hardware at least one deck Kev draw insulating paper band A, the width of band A adds 6～10mm for combination core 1/2 girth.

The utility model has adopted Kev to draw (kevlar) insulating paper, is a kind of contraposition aligned rigid macromolecular material that is, and formal name used at school also has characteristics such as the unexistent resistance to chemical attack of nomex paper, fire prevention, antifatigue Fanglun l414.The same with nomex paper all have after the lifetime easily environmental protection characteristics of degraded.On the band width, adopted to optimize to relate to, make that on the basis that guarantees insulating properties most economical, utilization has frugally reduced unnecessary waste or reduced insulation property.

Description of drawings

Fig. 1 is the structural representation of insulated conductor in the utility model

1 is that Kev draws insulating paper belting layer one, 2nd among the figure, and Kev draws insulating paper belting layer two, 3rd, polyester-imide layer, the 4th, core;

Fig. 2 is the vertical view of Fig. 1

Fig. 3 is the structural representation of another execution mode of insulated conductor in the utility model

Fig. 4 is the structural representation of insulation composite conductor in the utility model

5 is that Kev draws edge paper bag belt A among the figure, the 6th, and the combination core.

Embodiment

As shown in Figure 1, 2, the utility model comprises core 4, band, establishes two-layer Kev at least outside the core 4 and draws the insulating paper band, and Kev draws insulating paper belting layer 1, and Kev draws insulating paper belting layer 22; It is that core 4 one semi-perimeters add 5～8mm that two-layer Kev draws the width of insulating paper band.

Draw at core 4 and Kev and also to be provided with polyester-imide layer 3 between the insulating paper belting layer 22.

Aspect rotation direction, dual mode is arranged, a kind of is that Kev draws insulating paper belting layer 1, and Kev draws insulating paper belting layer 22 shape winding in the shape of a spiral, and two-layer rotation direction is opposite.

Perhaps adopt identical rotation direction.

As Fig. 3, when being circular, still can adopt the technical solution of the utility model in core 4 cross sections.

As shown in Figure 4, insulation composite conductor of the present utility model becomes assemble line core 6 side by side by the insulated conductor at least two basic utility models, combination core 6 peripheral hardwares at least one deck Kev draw insulating paper band A5, Kev draws the width of edge paper bag belt A5 to add 6～10mm for combination core 6 one semi-perimeters.

When having the two outer layers Kev to draw insulating paper band A5, the embodiment of its rotation direction still can be two kinds, in the same way or oppositely.

Claims

1, insulated conductor comprises core, band, it is characterized in that, core is established two-layer Kev outward at least and drawn the insulating paper band, and it is that core 1/2 girth adds 5～8mm that Kev draws the width of insulating paper band.

2, insulated conductor according to claim 1 is characterized in that, draws at core and Kev also to be provided with the polyester-imide layer between the insulating paper band.

3, insulated conductor according to claim 1 and 2 is characterized in that, described band shape in the shape of a spiral twines, and two-layer Kev draws insulating paper band rotation direction opposite.

4, insulated conductor according to claim 1 and 2 is characterized in that, described band shape in the shape of a spiral twines, and two-layer Kev draws insulating paper band rotation direction identical.

5, the insulation composite conductor that includes the described insulated conductor of claim 1, it is characterized in that, become the assemble line core side by side by at least two described insulated conductors, combination core peripheral hardware at least one deck Kev draw insulating paper band A, the width of band A adds 6～10mm for combination core 1/2 girth.