Nidec Corporation

Yoshihisa Kato

Suguru Yamada

Takashi Nagamitsu

Hideaki Kitamura

Yusuke Yoshida

Koji Ando

Takahiro Kikuichi

Fumihiro Umeda

Kenji Iwamoto

Kouji Muraoka

Tomo Hayashigaito

Hironobu Nishida

Masayuki Matsushita

Manabu Miyakoda

Hiromasa Sumida

A fan includes a shaft, a hollow, approximately cylindrical rotor yoke that rotates around the shaft as a rotation axis and is open toward one of its axial ends, a rotor magnet secured to an inner circumference of the rotor yoke, and an impeller secured to an outer circumference of the rotor yoke and arranged to rotate together with the rotor yoke to generate an air flow. One of the impeller and the rotor yoke is provided with an index used for circumferentially positioning the impeller or the rotor yoke.

Fan and method for manufacturing the same

A fan apparatus includes a casing and a fan unit. The casing is a hollow member having an inlet and an outlet. The fan unit has an inlet and an outlet, and includes a plurality of axial fans. The fan unit is disposed on the inside of the casing, and the inlet of the fan unit is disposed in the vicinity of the inlet of the casing. The position of the fan unit within the casing can be varied in order to alter the air flow and static pressure of the air discharged by the fan apparatus.

Fan apparatus

A bearing retainer unit is formed by an insert-molding technique to cast a molded component of the bearing retainer unit utilizing a bearing bushing. A first mold die, having a circumferential surface shaped to correspond to at least a portion of the inner circumferential surface of a bearing-positioning portion of the molded component, and a second mold die, having an abutment that abuts against an axial end face of the first die, are readied. A molten material is then injected into the mold to form the molded part, thereby forming the die-parting line on the inner circumferential surface of the component's bearing positioning portion, positioned at the radially outer side of the abutment.

Bearing retainer unit and electric motor furnished therewith

A method to hook a magnet wire extracted from a coil A stator coreincludes a core backof a substantially annular shape. At a radially outer end portion of the core backfour teethare arranged radially. At the teeth, a coilis formed by winding a magnet wirevia an insulator. A first insulatorconfiguring a lower half of the insulatorincludes a first core back insulating portion, 1 first teeth insulating portion, and a first cylindrical portion. A hook portionis formed at the first core back insulating portionat radially outer side, and between the teeth. The magnet wireextracted from the coilis hooked on the hook portion. The magnet wirehooked on the hook portionis lead the magnet wirearound the hook portionas a base, and is soldered to a landformed above a circuit board

Brushless motor and fan unit

A stator coreincludes a core backof a substantially annular shape. At a radially outer end portion of the core backfour teethare arranged radially. At the teeth, a coilis formed by winding a magnet wirevia an insulator. A first insulatorconfiguring a lower half of the insulatorincludes a first core back insulating portion, 1 first teeth insulating portion, and a first cylindrical portion. A hook portionis formed at the first core back insulating portionat radially outer side, and between the teeth. The magnet wireextracted from the coilis hooked on the hook portion. The magnet wirehooked on the hook portionis lead the magnet wirearound the hook portionas a base, and is soldered to a landformed above a circuit board

Growing community of inventors

Kyoto, Japan

Yoshihisa Kato