Japan Servo Co.,ltd.

Hitoshi Ishii

Toshio Kobayashi

Toshimi Abukawa

Hiroyuki Tanaka

Yasushi Niwa

Katsuo Kawashima

Keiji Uchida

Yuji Enomoto

Kazuo Ohnishi

Osamu Sekiguchi

Keiichi Abe

Hideo Takahashi

Hideaki Suzuki

A terminal arrangement of a motor has a terminal base formed with a plurality of terminal pins, the terminal base being fixed detachably on a stator iron core of a motor, terminal pins formed on bobbins, connected electrically with windings wound around the bobbins, a printed circuit board arranged on the stator iron core so as to connect electrically the terminal pins formed on the bobbins with the terminal pins formed on the terminal base, and an end bracket arranged so as to cover the printed circuit board. A hole is formed in the stator iron core, and an earth electrode is projected from the terminal base, and inserted into the hole so as to be connected electrically with the stator iron core, the earth electrode being connected electrically to one of the terminal pins formed on the terminal base. A capacitor motor has a motor having a stator iron core, and a phase advancing capacitor fixed detachably on the stator iron core.

Capacitor motor with terminal arrangement

Terminal arrangement of motor and capacitor motor

A permanent magnet motor for driving a fan is rotated while a movement of the rotor in a direction of thrust of a rotary shaft with a rotation of the fan is prevented by magnetic attraction force of a permanent magnet and a stator core. A surface magnetic flux density of the permanent magnet facing the stator core is lower at an end portion than at a central portion of the permanent magnet in the direction of thrust of the rotary shaft.

Permanent magnet motor for driving a fan

A rotor of a motor is attached to a rotor axis slidably both in axial direction and rotational direction, each of elastic bodies is attached to each of side faces of the rotor, and the rotor is fastened to the rotor axis through the elastic body, mechanically by applying pressure on each of the side faces of the rotor in the axial direction through the elastic body, or chemically by bonding the rotor axis and each of the elastic bodies as well as each of the elastic bodies and each of the corresponding side faces of the rotor.

Motor

A permanent-magnet electric rotating machine with a concentrated winding stator, including a stator having a plurality of stator magnetic poles formed so as to extend radially from an annular yoke portion of a stator iron core, and windings mounted on the stator magnetic poles; and a rotor having a permanent magnet with a plurality of magnetic poles and rotatably held so as to face the stator through an air gap; wherein each of the stator magnetic poles has a straight shape having a width which is made constant over a whole length, small grooves are formed in each of the stator magnetic poles in symmetrical positions on opposite sides and near a top end portion of the stator magnetic pole, a bottom portion of each slot portion defined by adjacent ones of the stator magnetic poles and the yoke is formed triangularly, each of the stator winding is constituted so that a winding having a predetermined number of turns and winding being formed so as to be fittable to each of the stator magnetic poles is mounted on the stator magnetic pole through an insulator, and wedges are fitted to the small grooves formed in the stator magnetic poles.

Permanent-magnet revolving electrodynamic machine with a concentrated winding stator

Growing community of inventors

Gunma, Japan

Hitoshi Ishii