CN207319728U - Rib bag enamel insulation conducting wire - Google Patents

Abstract

Rib bag enamel insulation conducting wire, the insulating layer of the conducting wire include the insulated paint that spraying is covered on conducting wire wicking surface, one layer of silanized glass fiber band are wound on the surface of insulated paint, and one layer of epoxy resin is cast with silanized glass fiber band upper and lower surface.Glass fiber tape is weaved by warp and weft vertical in length and breadth and is formed, and the main warp line inside glass fiber tape is raw glass cordage, and thin auxiliary warp is provided between glass cord；Weft and warp threads cross are woven into guipure shape, and weft is raw yarn, and diameter is consistent with thin auxiliary warp.Since the main warp linear diameter of glass fiber tape is larger, and the diameter of the raw yarn between main warp line is small, therefore, wire insulation is wrapped in glass fiber tape to paint, certain spatial joint clearance is formed between each other, infiltration is fully poured into a mould easy to liquid-state epoxy resin, fills and surrounds two sides inside and outside the glass fiber tape of conducting wire, form the insulating layer of tight.

Description

Rib bag enamel insulation conducting wire

Technical field

The utility model belongs to transformer coil technical field, is related to a kind of rib bag enamel insulation conducting wire.

Background technology

Coil windings are the important parts of transformer, since coil windings can bear voltage and current impact, The physical properties such as electrical strength, high-temperature capability and mechanical strength to the part winding it is more demanding, in order to meet it is above-mentioned will Ask, it is necessary to process insulating layer on the surface of coil winding conducting wire.

In the prior art, insulated paint is coated with the surface of transformer coil conducting wire, one layer of coiling on insulating lacquer layer Glass fiber layer, applies on glass fiber layer and carries out one layer of epoxy resin layer, the insulated conductor of this structure, and epoxy resin layer is carried out applying When, since glass fiber layer surface is smooth, inner face is close to conducting wire, and when applying shoe epoxy resin layer, epoxy resin is difficult to enter glass The inner face of silk layer, causes between glass fiber layer inner face and insulated paint there are bubble, so that the reduction of the intensity of winding wire, Non-refractory, easy to aging, insulation heat-conducting property reduction.

The content of the invention

The purpose of this utility model is to provide a kind of rib bag enamel insulation conducting wire, solves in the prior art, there are transformer Easily there are bubble between the insulated paint and glass fiber layer of winding wire, cause that the electric property of winding wire is poor, dielectric strength The problem of not high and easy aging.

The technical solution of the utility model is：Rib bag enamel insulation conducting wire, the insulating layer of the conducting wire are covered in including spraying Insulated paint on conducting wire wicking surface, winds one layer of silanized glass fiber band on the surface of insulated paint, fine in silanized glass Dimension band upper and lower surface is cast with one layer of epoxy resin.

Glass fiber tape is weaved by warp and weft vertical in length and breadth and is formed, and the main warp line inside glass fiber tape is thick glass Glass cordage, is provided with thin auxiliary warp between glass cord；Weft and warp threads cross are woven into guipure shape, and weft is original Yarn, diameter are consistent with thin auxiliary warp.

Using the technical solution of the utility model, one layer of insulated paint is covered in a manner of spraying first on core, then In the radial direction of conducting wire, one layer of glass fiber tape with rib of coiling, since the main warp linear diameter of glass fiber tape is larger, and main warp line Between raw yarn diameter it is small, therefore, between glass fiber tape and wire insulation paint, form certain spatial joint clearance, use this After kind conducting wire turns to the winding of transformer coil, then by coil fixation in a mold, in two kinds of negative pressure of vacuum and high temperature and pressure Under the conditions of, by between the conducting wire of liquid-state epoxy resin molded coil, liquid-state epoxy resin fully penetrated, fills and surrounds conducting wire Outer surface, after gel solidification to be cooled, tight is formed on the inside and outside two sides of the glass fiber tape with rib of conducting wire periphery Insulating layer, so as to eliminate the presence of bubble in conducting wire, further increases the electric property, mechanical strength and thermal capacitance of coil windings Amount property, improves the security of transformer coil operation.

Brief description of the drawings

Fig. 1 is the structure diagram of the utility model.

Specific embodiment

Embodiment, as shown in Figure 1：Rib bag enamel insulation conducting wire, the insulating layer of the conducting wire 1 are covered in wire stylet including spraying Insulated paint 3 on 2 surfaces, winds one layer of silanized glass fiber band 4, in silanized glass fiber on the surface of insulated paint 3 4 upper and lower surface of band is cast with one layer of epoxy resin 8；Glass fiber tape 4 is weaved by warp and weft vertical in length and breadth and is formed, glass Main warp line inside fiber band 4 is raw glass cordage 6, and thin auxiliary warp 5 is provided between glass cord 6；7 He of weft Warp threads cross is woven into guipure shape, and weft 7 is raw yarn, and diameter is consistent with thin auxiliary warp 5.

Claims (2)

1. rib bag enamel insulation conducting wire, the conducting wire（1）Insulating layer be covered in wire stylet including spraying（2）Insulated paint on surface （3）, it is characterised in that：In insulated paint（3）Surface on wind one layer of silanized glass fiber band（4）, it is fine in silanized glass Tie up band（4）Upper and lower surface is cast with one layer of epoxy resin（8）.

2. rib bag enamel insulation conducting wire as claimed in claim 1, it is characterised in that：Glass fiber tape（4）By vertical in length and breadth Warp and weft weave to be formed, glass fiber tape（4）Internal main warp line is raw glass cordage（6）, in glass cord（6） Between be provided with thin auxiliary warp（5）；Weft（7）Guipure shape, weft are woven into warp threads cross（7）For raw yarn, diameter with it is thin Aid in warp（5）Unanimously.