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Method for designing and attaching a fan shroud to CPU heat sink

IP.com Disclosure Number: IPCOM000132646D
Publication Date: 2005-Dec-28
Document File: 3 page(s) / 139K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for designing and attaching a fan shroud to CPU heat sink. Benefits include improved performance, improved reliability, improved ease of installation, and improved cost effectiveness.

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Method for designing and attaching a fan shroud to CPU heat sink

Disclosed is a method for designing and attaching a fan shroud to CPU heat sink. Benefits include improved performance, improved reliability, improved ease of installation, and improved cost effectiveness.

 

Background

              Conventional fans are well protected from outside intrusion. The majority of heatsinks with fans include some type of shroud or are completely enclosed in a container.

General description

              The disclosed method is a shroud that forms a cage around the fan to prevent operators’ fingers, cables, and wires from being caught in the fan blades. The base is constructed so it can be inserted between the heatsink fins and the heatsink base, preventing vertical movement.

Advantages

              The disclosed method provides advantages, including:
•             Improved performance due to having a minimal impact on air flow and thermal degradation

•             Improved ease of reliability due to providing a robust attachment to the heatsink

•             Improved ease of installation due to requiring only placement and tightening

•             Improved cost effectiveness due to using two identical parts for the shroud

•             Improved cost effectiveness due to using a small amount of material

Detailed description

              The disclosed method is a fan shroud. The base seats between the heatsink fins and the heatsink base. The bottom loop functions like an adjustable interlocking fastener and is secured around the heatsink. To complete the shroud, an identical part is connected at the mating crossbars. The symmetry requires only one tool to be fabricated. The top of the shroud is flared out to prevent interference with the fan. Cro...