Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1999-06-22
2000-09-12
Tolin, Gerald
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
361690, 361694, 361695, 257721, 257722, 174 151, 174 161, 174 163, 165 803, 16510434, H05K 720
Patent
active
061186589
ABSTRACT:
A heat sink fan of the present invention comprises a heat sink including a base plate having a plurality of radiation fins, a housing coupled to the heat sink to cover the top of the heat sink and a fan motor having a rotor including a plurality of fan blades. The housing has a central opening formed for sucking ambient air by rotation of the fan motor. A cylindrical venturi case extends downwardly from the housing central opening to surround the outer periphery of the fan blades. The radiation fins form a circular recessed portion at a central portion of the base plate to accommodate the venturi case and the fan motor. The base plate is formed with tapered sections inclined from the central portion toward end portions of the base plate whereby a space defined between the housing and the base plate gradually increases toward the end portions of the base plate.
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Chervinsky Boris
Nidec Corporation
Tolin Gerald
LandOfFree
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