BLOWER DEVICE

PROBLEM TO BE SOLVED: To provide a centrifugal blower device mounted on electronic equipment and the like which is thin and light-weight and which has good air blowing efficiency.SOLUTION: A blower device includes: a blower part 40 having a plurality of flat plates 410 arrayed via a gap 400 in an ax...

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Bibliographische Detailangaben
Hauptverfasser: MAKITA AKIHIKO, RYU KATSUNOBU, HINO YUKO, TSUKAMOTO TOMOYUKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a centrifugal blower device mounted on electronic equipment and the like which is thin and light-weight and which has good air blowing efficiency.SOLUTION: A blower device includes: a blower part 40 having a plurality of flat plates 410 arrayed via a gap 400 in an axial direction; a motor part 30 for rotating the blower part; and a housing for accommodating the blower part and the motor part. The housing includes: an intake port 202 penetrating in the axial direction at an upper part of the blower part; and an air blowing port opening toward the radial direction radially outside of the blower part. At least one part of the flat plates has a plurality of through-holes penetrating in the axial direction. When the blower part rotates, by viscosity resistance of the surface of the flat plate and a centrifugal force, an airflow going radially outside generates between the flat plates. As the airflow generates between the flat plates, the airflow hardly leaks in the vertical direction, and air blowing efficiency can be improved. Therefore, even in the case where the thickness is reduced, air blowing efficiency hardly deteriorates. Also, by the flat plate having the through-holes, the weight of the blower device can be reduced.SELECTED DRAWING: Figure 5 【課題】電子機器等に搭載される送風装置について、薄型化に加えて軽量で送風効率の良好な遠心型の送風装置を提供する。【解決手段】軸方向隙間400を介して配列された複数の平板410を有する送風部40と、送風部を回転させるモータ部30と、送風部およびモータ部を収容するハウジングとを有する。ハウジングは、送風部の上部において軸方向に貫通する吸気口202と、送風部の径方向外側において径方向に向けて開口する送風口とを有する。平板の少なくとも一部は、軸方向に貫通する複数の貫通孔を有する。送風部が回転すると、平板の表面の粘性抵抗および遠心力により、平板間に径方向外側へと向かう気流が発生する。平板間に気流を生じさせるため、上下方向に当該気流が漏れにくく、送風効率を向上できる。したがって、薄型化した場合であっても、送風効率が低下しにくい。また、平板が貫通孔を有することにより、送風装置を軽量化できる。【選択図】図5