Silicon rubber heat resistant wire for heating coil
A technology of heating coils and silicone rubber, which is applied in the field of electric wires, can solve problems such as easy breakage of terminal contacts, itchy skin of operators, and short service life of electric wires, and achieve good coloring firmness, obvious environmental protection effect, and extended service life Effect
Inactive Publication Date: 2004-04-21
马仕兴
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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
Method used
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[0016] Such as figure 1 , The invention is a silicone rubber heat-resistant electric wire for a heating coil. Wires used for coil windings and lead wires of microwave oven transformers. It consists of a nickel-plated copper wire core 1, a silicon rubber insulating layer 2, a colored polyester fiber braiding layer 3 and an outer heat-resistant coating 4 from the inside to the outside. The polyester fiber braiding layer is made of red polyester fiber with light fastness: 7-8 grades, temperature resistance: >300°C without discoloration, and migration resistance below 5 grades. The colorant is directly added to the polyester fiber raw material.
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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...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01B7/02H01B7/29H01B7/36H01F27/28H05B3/00
Inventor 马仕兴
Owner 马仕兴
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