Loading patent…
AssigneeTotoku Electric Co., Ltd.
InventorsTadashi Yamaguchi, Shigeo Hayashi
Estimating the term…
To provide an insulated wire that can increase in a partial discharge starting voltage, prevent deterioration of an insulator, and not cause worsening of an occupancy ratio, a coil that uses the insulated wire, a variable-thickness insulating tape used in manufacture of the insulated wire, and a manufacturing method of the same. The above-described problem is solved by an insulated wire (10) for a coil, comprising a conductor (1), and insulating coatings (2, 3) provided on an outer periphery of the conductor (1). The insulated wire (10) is constituted by the thick insulating coating (3) for an area where voltage increases and partial discharge readily occurs, and the thin insulating coating (2) for an area where the voltage does not increase and partial discharge does not readily occur, when the coil is wound. The thick insulating coating (3) and the thin insulating coating (2) are repeatedly provided at desired intervals. The above-described problem is solved by a coil (40) obtained by winding such an insulated wire (10) and configured so that the insulating coating (3) of the insulated wire (10) in an area where partial discharge readily occurs is thick, and the insulating coating (2) of the insulated wire (10) in an area where partial discharge does not readily occur is thin.
An insulated wire comprising:
An insulated wire comprising:
An insulated wire comprising:
Dependencies are inferred from the claim text.