INSULATING TAPE AND PRODUCTION METHOD THEREOF, STATOR COIL AND PRODUCTION METHOD THEREOF, AND ROTATING ELECTRIC MACHINE

摘要

The insulating tape of the present invention includes a mica layer containing mica, a reinforcing layer laminated on the mica layer and containing a filler and a fiber reinforcing material, and a cellulose derivative layer laminated on the reinforcing layer. The cellulose derivative layer contains a cellulose derivative in which one or more hydroxyl groups in the glucose units are substituted with a functional group such as —CH2CH2OH or —(CH2CH2O)pH (in the formula, p is any repeating number greater than 0 up to 50). The weight per unit area of the mica ranges from 100 g/m2 to 200 g/m2. The filler has a maximum particle size of 100 μm or smaller and a weight per unit area ranging from 10 g/m2 to 50 g/m2. The present invention can provide an insulating tape that can form a stator coil insulating layer with high thermal conductivity, with no outflow of a filler supported beforehand on the insulating tape to the exterior during production of the stator coil, and that can enhance bonding strength between portions of the insulating tape.