Nidec Corporation

Kouji Muraoka

Yusuke Yoshida

Yoshihisa Kato

Takashi Nagamitsu

Hiromasa Sumida

Masayuki Matsushita

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

In a motor, axially upper and lower end surfaces of the stator core are substantially covered by a first insulator and a second insulator, both of which are made of resin. A boss is arranged circumferentially between two neighboring teeth. Three bosses are arranged at three out of four positions defined between any two neighboring teeth. A conductor pin is inserted into each boss along an axial direction. The boss includes a hole extending axially upward from the axially lower end thereof, in which a conductor pin is fitted. An axially lower position of the conductor pin axially downwardly protrudes from the boss. The conductor pin is inserted into each of the notched portions arranged to the circuit board, and is soldered with the circuit board such that the conductor pin and the circuit board are electrically connected.

Fan and motor having multiple insulators with an axially protruding conductor pin

Axially upper and lower end surfaces of the stator coreare substantially covered by the first insulatorand the second insulators, both of which are made of resin. A bossis arranged circumferentially between the two neighboring teeth. In the preferred embodiment of the present invention, three bossesare arranged at three out of four positions defined between any two neighboring teeth. A conductor pinis inserted into each bossalong the axial direction. The bossincludes a hole extending axially upward from the axially lower end thereof, in which a conductor pinis fitted. An axially lower position of the conductor pinaxially downwardly protrudes from the boss. Into each of the notched portionsarranged to the circuit board, the conductor pinis inserted and is soldered with the circuit boardsuch that the conductor pinand the circuit board are electrically connected.

Growing community of inventors

Kyoto, Japan

Kouji Muraoka