Centrifugal fan
US10458424B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Jan 9, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L23/467
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.