180-level self-adhesive polyurethane enameled wire

Abstract

The invention belongs to the technical field of enameled wires, and particularly relates to a 180-level self-adhesive polyurethane enameled wire, which comprises an inner core wire, wherein a plurality of metal tubes are arranged on the outer side of the inner core wire, and a plurality of contact rods are arranged on the inner walls of the metal tubes in the circumferential direction. According to the invention, the skin and the metal tube are continuously arranged on the outer side of the inner core wire, if it is found that the metal tube is deformed, it is indicated that the metal tube issubjected to the action of external force, and then whether the paint layer on the surface falls off needs to be checked, so that the paint layer can be rapidly overhauled by checking the condition ofthe metal tube in time; the heat generated by the inner core wire is rapidly dissipated to the outside through the metal pipe with a larger area, so that the probability that the skin and the inner core wire are heated and bonded is reduced; and the plurality of sections of skin which are uniformly spaced only need to be loosened in sequence, and the metal tube is not bonded with the inner core wire, so that the inner core wire can be quickly peeled to be quickly exposed, and the actual use experience is ensured.

Description

technical field [0001] The invention belongs to the technical field of enameled wires, in particular to a 180-grade self-adhesive polyurethane enameled wire. Background technique [0002] With the development of modern industry, people have higher and higher requirements for electrical and electronic equipment in terms of safety, high efficiency, and energy saving, and electrical and electronic equipment is also showing a trend towards small and light weight. However, the miniaturization and lightening of components will inevitably lead to an increase in the temperature of their working environment, and the heat resistance level of the enameled wire varnish that plays an insulating role in the coils of components also needs to be increased accordingly. The main items to measure the heat resistance of enameled wire are thermal shock resistance and softening breakdown resistance. If it is said that polyurethane enameled wire will gradually expand its share in the enameled wir...

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Problems solved by technology

[0003] There are also some technical patents about enameled wires in the prior art. For example, the Chinese patent application number 2016107514537 discloses a polyurethane nylon enameled wire that is easy to peel, including a wire core, and a nylon layer is arranged outside the wire core; Polyurethane injection molding layer, an epoxy resin layer is connected between the polyurethane injection molding layer and the nylon layer; a peeling line is connected between the epoxy resin layer and the polyurethane injection molding layer, and a tapered cone is arranged at the position corresponding to the side of the polyurethane injection molding layer on the stripping line. Shaped cutting ribs have the advantages of convenient peeling, good structural stability and convenient processing, but the paint layer is thin and will fall off when touched by external force. The resistance is high, so more heat is generated. When the skin is tightly attached to the inner core wire, it not only affects the heat loss, but also when the skin is heated and melted, it is difficult to quickly remove the skin from the inner core wire, which affects the actual use experience. In view of this, the present invention provides a 180-grade self-adhesive polyurethane enameled wire, which can ensure the integrity of the paint layer, and at the same time speed up the heat loss and the rapid removal of the skin to ensure the actual use experience

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