Shield conversion lead of parallel composite strip

Abstract

The invention discloses a shield conversion lead of a parallel composite strip, comprising two groups of copper flat wires. An inner insulation paper layer is coated out of the single group of copper flat wires; two groups of copper flat wires are axially arranged in parallel; a shield wire is arranged between two groups of copper flat wires; and an outer insulation paper layer is coated outside the two groups of copper flat wires and the shield wire. In the invention, a group of enameled flat wires is adopted to replace the shield wire and directly clamped between two conversion leads to be integrated together with the outer insulation paper, thereby ensuring larger sectional area of the leads, increased the voltage capacity, better insulation effect and stronger puncture-resisting ability; besides, shield wires are arranged in the lead, thereby greatly reducing the difficulty degree in the coil winding process, simplifying the process and ensuring good effect of the shield wire.

Description

technical field [0001] The invention relates to a kind of electric equipment, in particular to a kind of parallel compound tape shielding transposition conductor. Background technique [0002] At present, ordinary transposed wires are composed of several to dozens of enamelled flat wires transposed by transposition heads to form winding wires with overlapping widths. In order to meet the requirements of high voltage and large capacity transformer coil winding, the transposition The size of enamelled flat wires used for bit wires is getting larger and larger, and the number of enameled flat wires is also increasing. Due to the limitations of production equipment and process conditions, the number of enamelled flat wires is related to the number of twisted cages of the transposition unit. At present, there are basically 48, 56, and 88 twisted cages for the transposition unit. Flat-wrapped wires will not be suitable for successful transposition, the wires are easy to run and l...

AI Technical Summary

Problems solved by technology

Due to the limitations of production equipment and process conditions, the number of enamelled flat wires is related to the number of twisted cages of the transposition unit. At present, there are basically 48, 56, and 88 twisted cages for the transposition unit. Flat-wrapped wires will not be suitable for successful transposition, the wires are easy to run and loose turns, the production operation is difficult, and the product performance is not easy to control

The larger the size of the enamelled flat wire, the more difficult it is to control the transposition pitch and transposition bending. Due to the large force on the enameled flat wire, it is easy to cause damage to the insulation, change the size, and the process is not easy to control; and because of the large cross-sectional area, in When the transformer coil is wound, the shielding wire cannot be well combined with the parallel composite transposed wire as a whole, and the effect of the shielding wire is greatly affected

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