Toshiba Carrier Corporation

Kabushiki Kaisha Toshiba

Yoshiaki Inaba

Kiyotaka Kawamura

Toshihiko Futami

Katsumi Fukagawa

Yoshiharu Shida

Kazumoto Imazawa

There is disclosed an electric motor, which contains a plurality of windings wound around a stator core and a plurality of winding terminal receiving portions for containing that include terminal portions of the plurality of windings in a peripheral direction of the stator core at an interval. In addition, the motor includes a terminal plate with lead wires that are drawn out of the plurality of windings along the peripheral direction of the stator core, and connection fittings for electrically connecting the winding terminals to the corresponding lead wires.

Stator winding connection arrangement for electric motor

A compressor including a compressing mechanical unit which inhales a refrigerant excluding chlorine, compresses the refrigerant, exhales the compressed refrigerant, and collects a refrigerating machine oil O compatible with the refrigerant, thereby lubricating the compressing mechanical unit with the refrigerating machine oil O. The compressor further includes an electric motor unit for driving the compressing mechanical unit. The electric motor unit includes a stator and a rotor, and is driven by an inverter. The stator includes three-phase wires and a stator core, wherein the stator core includes a yoke section and teeth sections on which the three-phase wires are wound, and the wires are wound on the teeth sections such that the wires on adjacent teeth sections have different phases.

Stator assembly for a refrigerant compressor having coils wound to the stator teeth

A method of magnetizing a permanent magnet motor involves inserting a spacer in between multi-layered windings ( Ua and Va) wound on a plurality of magnetic pole teeth when magnetizing an unmagnetized magnet ( ), and removing the inserted spacer ( A) after finishing the magnetization. The spacer ( A) is also inserted in a space between two stator windings ( Ua, Va; Ub, Vb) wound on two magnetic pole teeth adjacent to each other, a magnet material is magnetized by electrifying the stator windings with a direct current in a state of the spacer ( A) being inserted, a permanent magnet is thus formed, and the spacer ( A) is removed after finishing the magnetization.

Method of magnetizing permanent magnet motor

Stator of an electric motor

Core for a stator

Growing community of inventors

Fuji, Japan

Yoshiaki Inaba