Improved paper-insulated combined conductor structure

Abstract

The invention provides an improved paper-insulated combined conductor structure which can be used for reducing the integral size of a coil while combining conductors into an integral conductor structure, increasing the mechanical strength of a conductor, realizing the electrical performance of the conductor better, prolonging the service life of the coil and guaranteeing normal operation of a power supply network. The improved paper-insulated composite conductor structure comprises a plurality of conductor bodies, wherein pieces of first insulating paper are respectively wrapped outside the conductor bodies, the conductor bodies which are wrapped with the first insulating paper are connected in a superposed mode, and a piece of second insulating paper is wrapped outside the conductor bodies which are connected in the superposed mode, thereby forming the integral composite conductor structure. The improved paper-insulated combined conductor structure is characterized in that a plurality of layers of first insulating paper are wrapped outside the conductor bodies respectively, and a self-adhesive layer is arranged at the outer side of the outermost layer of the insulating paper among the first insulating paper respectively, thereby forming a self-adhesive layer structure of the outermost layer of insulating paper.

Description

technical field [0001] The invention relates to the technical field of wires, in particular to an improved paper-insulated composite wire structure. Background technique [0002] The combined wire is a winding wire with a whole-wrap insulation layer formed by combining at least two single-clad flat copper wires with electrical insulating paper for multiple layers of continuous wrapping, see figure 1 , the existing combined conductors are made of single conductors 1-1, 1-2 wrapped with the first insulating paper 2, the middle of which is increased with a backing paper 3, and then the second insulating paper 4 is used as a multi-layer continuous package structure. The movement between the wires, the combined wires of the winding wires of this structure cannot form a whole after the transformer is dried, and there are disadvantages of unsatisfactory mechanical strength and electrical performance, which reduces the service life of the coil and also affects the normal operation o...

AI Technical Summary

Problems solved by technology

[0002] The combined wire is a winding wire with a whole-wrap insulation layer formed by combining at least two single-clad flat copper wires with electrical insulating paper for multiple layers of continuous wrapping, see figure 1 , the existing combined conductors are made of single conductors 1-1, 1-2 wrapped with the first insulating paper 2, the middle of which is increased with a backing paper 3, and then the second insulating paper 4 is used as a multi-layer continuous package structure. The movement between the wires, the combined wires of the winding wires of this structure cannot form a whole after the transformer is dried, and there are disadvantages of unsatisfactory mechanical strength and electrical performance, which reduces the service life of the coil and also affects the normal operation of the power supply network , and adding backing paper between the wires increases the overall volume of the coil

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