Magnet wire and electromagnetic relay using the same
AssigneeSumitomo Electric Industries, Ltd.
InventorsAkihisa Takeuchi, Waichiro Kozen, Hirohiko Nakabayashi
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Abstract
A polyurethane magnet wire comprising a conductor having provided thereon a polyurethane insulation coating, wherein the total amount of the phenolic compounds contained in organic compounds which evaporate from said coating by heating at 280.degree. C. for 2 minutes is 0.2 wt% or less based on the weight of the coating and the total amount of the organic compounds is 2 wt% or less based on the weight of the coating; and an electric relay comprising such a wire.
Claims4
An electromagnetic relay comprising a polyurethane magnet wire which comprises a conductor having provided thereon a polyurethane insulation coating which contains organic compounds, wherein the total amount of phenolic compounds contained in the organic compounds which evaporate from said coating by heating at 280.degree. C. for 2 minutes is 0.2 wt% or less based on the weight of said coating and the total amount of said organic compounds is 2 wt% or less based on the weight of said coating.
An electromagnetic relay comprising a polyurethane magnet wire which comprises a conductor having provided thereon a polyurethane insulation coating which contains organic compounds, wherein the total amount of phenolic compounds contained in the organic compounds which evaporate from said coating by heating at 280.degree. C. for 2 minutes is 0.2 wt.% or less based on the weight of said coating and the total amount of said organic compounds is 2 wt.% or less based on the weight of said coating, and having provided on said polyurethane insulation coating a coating of an organic lubricant having a vapor pressure of 1.times.10.sup.-1 Torr or less at 200.degree. C.
Dependencies are inferred from the claim text.