Noise-reducing blower structure
AssigneeNVIDIA Corporation
InventorMichael B. Wittig
Life of this patent
Estimating the term…
Abstract
Embodiments of the present invention provide for a noise-reducing blower structure in which a fan-housing is disposed on an expansion card and juxtaposed to a heat sink. The heat sink is disposed on the expansion card and resides within a rigid frame above a processing unit chip. A fan that circulates air is disposed on the expansion card within the fan-housing. A duct is disposed on the expansion card, covering the heat sink and the fan-housing, and the duct is mechanically separated from the fan-housing for reducing vibration noises. By placement of the fan next to the heat sink, and not on top of it, the fan can be made larger to thereby rotate at slower speeds.
Claims26
A heat-removing blower structure comprising:
- a fan-housing disposed within an expansion card and juxtaposed to a heat sink, said heat sink disposed within said expansion card;
- a fan for circulating air, said fan located within said fan-housing;
- and
- a duct disposed to cover said heat sink and said fan-housing, wherein said duct is mechanically separated from said fan-housing by an air gap, wherein said air gap is for reducing translation of vibration noises from said fan to said duct.
An expansion card for a computer, comprising:
- a heat sink disposed on an assembly;
- a fan-housing disposed on said assembly and juxtaposed to said heat sink;
- a fan for circulating air, said fan disposed within said fan-housing;
- and
- a duct disposed to cover said heat sink and said fan-housing, wherein said duct is mechanically separated from said fan-housing by an air gap, wherein said air gap is for reducing translation of vibration noises from said fan to said duct.
A method of assembling a blower structure of an expansion card, said method comprising:
- securing a fan and fan-housing to said expansion card;
- securing a heat sink to said expansion card, next to said fan-housing, above a processing unit chip, said processing unit surrounded by a rigid frame;
- and
- attaching a duct to said expansion card at said rigid frame, said duct covering said fan-housing and said heat sink, and said duct being mechanically separated from said fan-housing by an air gap, wherein said air gap is for reducing translation of vibration noises from said fan to said duct.
Dependencies are inferred from the claim text.