Silicon rubber heat resistant wire for heating coil

Abstract

The present invention relates to a heat-resistant wire coated with silicone rubber which is used for the heating coil, the wire being mainly suitable to the coil winding and the leading line of microwave oven. It includes from the inner to outer portion a core 1 made of nickel plated copper wires, an insulating layer 2 made of silicone rubber, a weaving layer 3 made of Dacron and an outer heat-resistant coating 4. The weaving layer of the invention has high strength, good wear-resistance, long operating life and good firmness of color attachment.

Description

Technical field: [0001] The present invention relates to an electric wire. In particular, it relates to a silicone rubber heat-resistant wire for a heating coil. It is mainly suitable for coil winding and lead wire of microwave oven transformer. Background technique: [0002] At present, the wires generally used for coil windings and lead wires of microwave oven transformers have tinned copper wire cores, silicone rubber insulating layers, glass fiber braiding layers, and outer layers of heat-resistant red insulating varnish coatings from the inside to the outside. It mainly has the following deficiencies: [0003] 1. The strength of the glass fiber braid is too low, the surface is easy to wear during processing, and the silicone rubber insulating layer is damaged; [0004] 2. The fine dust of glass fiber at the worn place can easily cause itching and even skin allergies of the workers; [0005] 3. The tinned copper wire core is easy to oxidize and blacken at high temper...

AI Technical Summary

Problems solved by technology

[0003] 1. The strength of the glass fiber braid is too low, the surface is easy to wear during processing, and the silicone rubber insulating layer is damaged;

[0004] 2. The fine dust of glass fiber at the worn place can easily cause itching and even skin allergies of the workers;

[0005] 3. The tinned copper wire core is easy to oxidize and blacken at high temperature, which accelerates the aging of silicone rubber, and the terminal contact is easy to break, and the service life of the wire is short;

[0006] 4. Dip-coated insulating varnish on the outer layer of the wire is easy to fade, and the coloring firmness of the surface is poor

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