Push and pull dual-fan heat sink design

Details Push and pull dual-fan heat sink design Push and pull dual-fan heat sink design

1997-12-15

1999-09-14

Thompson, Gregory

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

361715, H05H 720

Patent

active

059532092

ABSTRACT:
An electronic cartridge that includes a pair of fans which push and pull air from a heat sink of an electronic cartridge. The heat sink is mounted to the electronic cartridge. The cartridge may include integrated circuit packages which generate heat that flows into the heat sink. A first fan is attached to the heat sink and induces a flow of air into the sink. A second fan is attached to the heat sink and induces a flow of air away from the sink. The heat sink typically has a plurality of fins that are separated by a plurality of channels. The fans induce a flow of air across the channels from the first fan to the second fan. The flow of air across the channels reduces the likelihood of dead air zones within the heat sink and hot spots on the cartridge.

REFERENCES:
patent: 4520425 (1985-05-01), Ito
patent: 5502618 (1996-03-01), Chiou
patent: 5526229 (1996-06-01), Wakabayashi et al.
patent: 5638895 (1997-06-01), Dodson
patent: 5787971 (1998-08-01), Dodson

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