Centrifugal heat dissipation fan
US12404869B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2025 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Feb 27, 2045 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/20172
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal heat dissipation fan including a housing and a blade wheel disposed in the housing is provided. The housing has two inlets on a rotation axial direction of the blade wheel and at least one outlet on a rotation radial direction of the blade wheel. The blade wheel has a hub and a plurality of metal blades disposed and surrounding to the hub. Each of the metal blades has a body, an upper bending plate and a lower bending plate, wherein the upper bending plate and the lower bending plate are movable relative to the body. An including angle of the upper bending plate relative to the body, and an including angle of the lower bending plate relative to the body are changeable along with the rotating speed of the blade wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.