Centrifugal Fan
AssigneeMINEBEA MITSUMI Inc.
InventorsKiyohisa Nara, Seiya Fujimoto
Life of this patent
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Abstract
There is provided a centrifugal fan that effectively cools an electronic component with a simple structure. The centrifugal fan comprises an impeller 8 having a plurality of pins extending in an axial direction, a rotor yoke 18 formed with a plurality of through-holes through which the pins penetrate, the rotor yoke 18 being joined to the impeller 8 as the pins penetrate through the through-holes, and a circuit board 10 arranged in a state having a gap with respect to the rotor yoke 18, wherein an end 11c′ of the pin protrudes from the rotor yoke to a side of the circuit board, and the plurality of pins are arranged with uneven pitch in a circumferential direction of the impeller.
Claims2
A centrifugal fan comprising:
- an impeller having a plurality of pins extending in an axial direction;
- a rotor yoke formed with a plurality of through-holes through which the pins penetrate, the rotor yoke being joined to the impeller as the pins penetrate through the through-holes;
- and
- a circuit board arranged in a state having a gap with respect to the rotor yoke,
- wherein
- an end of the pin protrudes from the rotor yoke to a side of the circuit board, and
- the plurality of pins are arranged with uneven pitch in a circumferential direction of the impeller.
Dependencies are inferred from the claim text.