Fanuc Corporation

Kiyoshi Tagami

Yukio Katsuzawa

Michi Masuya

Hideki Oka

Masamoto Fukuda

Hiroyuki Uchida

Masatoyo Sogabe

Yoichi Amemiya

Yoshihito Tanabe

Eiki Asaba

A method of insulating the proximal portions of the coil edges of the stator. The insulation sheet has a folding portion for folding one or more coils of the same phase and two insertion portions extending from the folding portion so that distal ends are positioned away from a centerline of the folding portion. One or more coils of the same phase are folded by the folding portion and the two inserting portions are inserted into the slot or slots from which the one or more coils project. The inserting portions are drawn from inside of the stator core so that the folding portion spreads to fold the proximal portions of the coils. The inserting portions are securely held between the wall of the slots and the coils to prevent the insulation sheet from displacement, inclination and slip off to securely insulate the coils of different phases.

Method of immulating between coils of different phases of electric motor

An electric motor capable of ensuring insulation of proximal portions of coil edges of a stator projecting from end of a stator core, and a method of insulating the proximal portions of the coil edges of the stator. The insulation sheet has a folding portion for folding one or more coils of the same phase and two insertion portions extending from the folding portion so that distal ends are positioned away from a centerline of the folding portion. One or more coils of the same phase are folded by the folding portion and the two inserting portions are inserted into the slot or slots from which the one or more coils project. The inserting portions are drawn from inside of the stator core so that the folding portion spreads to fold the proximal portions of the coils. The inserting portions are securely held between the wall of the slots and the coils to prevent the insulation sheet from displacement, inclination and slip off to securely insulate the coils of different phases.

Electric motor and method of insulation between coils of different phases of electric motor

Wedge guides for holding a wedge are mounted onto a base , and a stripper is fixed to the other end of the wedge guide . A blade holder including a plurality of blades vertically installed is held in such a manner as to be freely advanceable and retractable in an up-and-down direction. A coil wound is inserted between the blades , and alignment tool is inserted at the tip ends of the blades. A stator iron core is inserted into the alignment tool , and the stator iron core is moved until the tip ends of the blades penetrate the stator iron core . Thereafter, the stator iron core and a connecting rod , the other end of which being connected to the blade holder , are pushed by a stator pusher , whereby the blade holder is also caused to move together with the stator iron core to insert the coil into grooves in the stator iron core

Coil inserter for stator winding

Joint structure of radial type rotor and output shaft in synchronous

Slit disposition structure of fixed slit disk in pulse encoder

Permanent-magnet rotor shrink-fit assembly

Growing community of inventors

Hachioji, Japan

Kiyoshi Tagami