Low-noise fan for information handling systems
AssigneeDell Products L.P.
InventorsBradford Edward Vier, Qinghong He
Life of this patent
Estimating the term…
Abstract
In one or more embodiments, a fan assembly may comprise a fan hub with a plurality of blades, each blade having one or more cutouts through which laminar airflow from a front side of the blade can pass through the blade to a back side of the blade, reducing aeroacoustic noise. A cutout may be a lateral cutout, wherein the lateral cutout connects to an edge of a blade, or may be an internal cutout, wherein an internal cutout may be formed relative to a midline of the blade but does not connect to either edge of the blade.
Claims9
A low noise fan, comprising:
- a fan housing;
- a hub rotatably positioned in the fan housing;
- and
- a plurality of blades coupled to the hub, each blade comprising one or more cutouts formed a radial distance from the hub, wherein the one or more cutouts comprise internal cutouts formed relative to a midline of the blade.
A cooling system for an information handling system, the cooling system comprising:
- a motor;
- a fan assembly comprising:
- a fan housing;
- a hub coupled to an output shaft of the motor and positioned in the fan housing;
- and
- a plurality of blades coupled to the hub, each blade comprising one or more cutouts formed a radial distance from the hub, wherein the one or more cutouts comprise internal cutouts formed relative to a midline of the blade.
A blade for a low-noise fan, the blade comprising:
- two surfaces, wherein a first surface of the two surfaces is a front surface based on a direction of rotation and a second surface of the two surfaces is a back surface based on the direction of rotation;
- a linear section extending from a hub a first distance;
- a curved section extending a second distance to an end of the blade;
- a transition section between the linear section and the curved section;
- and
- one or more cutouts, wherein air flowing along the front surface in the linear section is generally laminar flow, air flowing along the front surface in the curved section is generally turbulent flow, and a portion of the air flowing along the front surface passes through the one or more cutouts to flow relative to the back surface, wherein the one or more cutouts comprise internal cutouts formed relative to a midline of the blade.
Dependencies are inferred from the claim text.