Electric wire and transformer

Abstract

The invention provides a wire and a transformer. The electric wire comprises an electric wire body and a protective layer; The protective layer is coated on or wound around the electric wire body, andclosely adheres to the electric wire body. The temperature resistance temperature of the protective layer is higher than the temperature of the electric wire body surface when the electric wire is inoperation. The transformer consists of windings wound from electric wires. The electric wire of the invention is directly formed on the electric wire body by winding or coating, so that the winding transformer wound by the wire has no need of extra bushing and glue treatment, the winding is more neatly wound, the structure of the transformer is more compact, miniaturization can be realized, and the electrical quality of the transformer can be improved.

Description

technical field [0001] The invention relates to the field of cables, in particular to an electric wire and a transformer. Background technique [0002] High-frequency wires and transformers are the core and key components of switching power supplies. National and international product safety regulations have strict requirements on their performance and wire structure. One of the requirements is: "When two wires or one wire in a wire assembly If it is in contact with another wire and forms any angle between 45° and 90° with each other, and bears the tension of the wire, it should provide mechanical stress protection." In order to meet this requirement, the existing technical scheme adopts high-frequency The method of setting insulating sleeves on the lead-out lines of electric wires and transformer wires, adding anti-folding tapes on wires and transformer wire wraps or adding retaining wall tapes on electric wires. [0003] But there is following defective in the electric wi...

AI Technical Summary

Problems solved by technology

[0004] 1. Insulating sleeve and retaining wall on the lead-out line of the wire: This method is more reliable, but it will affect the flatness of the wiring at the base layer behind and increase the volume of the wire package, which will affect the EMC characteristics of the switching power supply

At the same time, because the existing fully automated production equipment for electric wires and transformer wires cannot solve the continuous automatic production action of insulating sleeves on the lead-out wires of the wires, the automatic production of electric wires and transformer wires cannot be automated, and step-by-step manual methods must be used. Operation

[0005] 2. Wire package plus magnetic core adhesive: the magnetic core must be adhesive, the process of adhesive is time-consuming, the production efficiency is the highest, manual production, poor process consistency, difficult to control, and cannot be automated.

The reflex tape is placed manually, the reflex tape is easy to move during the winding process, the process consistency is poor, it is difficult to control, and it cannot be automated.

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