[특허]Dual impeller push-pull axial fan heat sink

[미국특허] Dual impeller push-pull axial fan heat sink 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H05K-007/20
출원번호	US-0314707 (2005-12-21)
등록번호	US-7324339 (2008-01-29)
발명자 / 주소	Foster, Sr.,Jimmy Grant June,Michael Sean Makley,Albert Vincent Matteson,Jason Aaron
출원인 / 주소	International Business Machines Corporation
대리인 / 주소	Byrd,Cynthia S.
인용정보	피인용 횟수 : 10 인용 특허 : 12

초록 ▼

A fan sink that includes a dual impeller push-pull axial fan and a heat sink to cool a hot electronic device is presented. The axial fan has a hub motor, a first impeller that is radially proximate to the hub motor, and a second impeller that is radially distal to the hub motor, wherein the first impeller pushes air in a first direction and the second impeller pulls air in a second direction. The heat sink is oriented between the axial fan and the hot electronic device such that the hot electronic device, the heat sink, and the axial fan are axially oriented, wherein cool air is forced onto the heat sink by one impeller in the axial fan, and wherein heated air from the heat sink is removed by an other impeller in the axial fan.

대표청구항 ▼

What is claimed is: 1. A system comprising: an axial fan, the axial fan having: a hub, a first impeller that is radially proximate to the hub, and a second impeller that is radially distal to the hub, wherein the first impeller pushes air in a first direction and the second impeller pulls air in a second direction; a hot device that is to be cooled; a heat sink oriented between the axial fan and the hot device such that the hot device, the heat sink, and the axial fan are axially oriented, wherein cool air is forced onto the heat sink by one impeller in the axial fan, and wherein heated air from the heat sink is removed by an other impeller in the axial fan, and wherein a top surface of the heat sink has a concave surface that aids an airflow direction caused by the first and second impellers, wherein the axial fan is mounted to the heat sink without any ductwork surrounding the axial fan, and wherein ambient air flows freely through the second impeller from an interior of a housing that holds the hot device, and wherein the first impeller has only large fan blades, and wherein the second impeller has only small fan blades, and wherein the large fan blades are larger than the small fan blades, and wherein the first impeller has fewer large fan blades compared to a quantity of small fan blades in the second impeller; a first interior duct that is aligned axially with the first impeller to bring the cool air in from outside a housing of the system; and a second interior duct that circumscribes the first interior duct, wherein the second interior duct is aligned axially with the second impeller to exhaust hot air outside the housing of the system, wherein the first and second impellers are only supported by the hub, and wherein rotational force to the first and second impellers is supplied by a separate mechanical means. 2. The system of claim 1, wherein the hot device is an electronic component in the system. 3. The system of claim 1, wherein the heat sink further comprises: a plurality of fins, wherein air moving from the first impeller towards the second impeller moves across the fins.

이 특허에 인용된 특허 (12) 인용/피인용 타임라인 분석

Alizadeh Ahmad, Axial flow fan.
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Karadgy Viatcheslav G.,RUX ; Moskovko Yuriy,RUX ; Brusilovsky Josef,RUX ; Popova Lioudmila,RUX ; Patterson Vance M., Bi-directional fan having asymmetric, reversible blades.
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Foster, Sr.,Jimmy Grant; June,Michael Sean; Makley,Albert Vincent; Matteson,Jason Aaron, Coaxial air ducts and fans for cooling and electronic component.
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Lopatinsky,Edward L.; Schaefer,Dan K.; Rosenfeld,Saveliy T.; Fedoseyev,Lev A., Cooler for electronic devices.
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Hashimoto,Toshio; Kimura,Toru; Kaneko,Sachiko, Cooling apparatus and electronic equipment.
상세보기
Foster, Sr.,Jimmy Grant; June,Michael Sean; Makley,Albert Vincent; Matteson,Jason Aaron, Dual fan heat sink with flow directors.
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Espinoza Ibarra,Ricardo; Simon,Glenn; Malone,Christopher Gregory, Dynamically adaptable electronics cooling fan.
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Batchelder John Samuel, Heat exchange apparatus.
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Hoffmann Ingolf,DEX, Heat sink.
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Nakase Mitsunobu,JPX, Heat sink fan for cooling an electronic apparatus.
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Shah Hemant S. (Livonia MI) Terry Joseph L. (Dearborn MI) Acre James A. (Pinckney MI), High output engine cooling fan.
상세보기
Nadeau, Sylvain; Kurbatskii, Konstantin, Low tone axial fan structure.
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이 특허를 인용한 특허 (10) 인용/피인용 타임라인 분석

Koplow, Jeffrey P., Axial flow heat exchanger devices and methods for heat transfer using axial flow devices.
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Schaff, Ulrich Y.; Koh, Chung-Yan; Sommer, Gregory J., Devices, systems, and methods for conducting assays with improved sensitivity using sedimentation.
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Schaff, Ulrich Y.; Sommer, Gregory J.; Singh, Anup K.; Hatch, Anson V., Devices, systems, and methods for conducting sandwich assays using sedimentation.
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Koh, Chung-Yan; Schaff, Ulrich Y.; Sommer, Gregory J., Devices, systems, and methods for detecting nucleic acids using sedimentation.
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Sommer, Gregory J.; Hatch, Anson V.; Wang, Ying-Chih; Singh, Anup K., Devices, systems, and methods for microscale isoelectric fractionation.
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Koplow, Jeffrey P., Heat exchanger device and method for heat removal or transfer.
상세보기
Koplow, Jeffrey P., Heat exchanger device and method for heat removal or transfer.
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Koplow, Jeffrey P., Heat exchanger device and method for heat removal or transfer.
상세보기
Koplow, Jeffrey P., Heat exchanger device and method for heat removal or transfer.
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Schaff, Ulrich Y.; Sommer, Gregory J.; Singh, Anup K., Systems, devices, and methods for agglutination assays using sedimentation.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Dual impeller push-pull axial fan heat sink 원문보기