Insulated wire having a layer containing bubbles, electrical equipment, and method of producing insulated wire having a layer containing bubbles

摘要

An insulated wire, containing: an insulating film made from a thermosetting resin disposed on a conductor directly or via an insulating layer interposed therebetween, in which the insulating film made from a thermosetting resin is a layer containing bubbles prepared by baking a varnish of thermosetting resin, and a layer containing no bubbles is formed as an upper or lower layer of the layer containing bubbles.

主权项

1. An insulated wire, comprising:
an insulating film made from a thermosetting resin disposed on a conductor directly or via an insulating layer interposed therebetween, wherein the insulating film made from a thermosetting resin is a layer containing bubbles prepared by baking a varnish of thermosetting resin, and wherein a layer containing no bubbles is formed as an upper or lower layer of the layer containing bubbles, and wherein the insulating layer containing bubbles made from a thermosetting resin has bubbles of an average size of 10 μm or less, an insulating layer containing no bubbles with a thickness of 1 μm or greater is disposed as an upper layer and/or a lower layer of the insulating layer containing bubbles, and the insulating layer containing bubbles made from a thermosetting resin is laminated in one or more layers.