自然空冷電子檆器に用いる多孔板の流体抵抗に及ぼす形状パラメータの影響と抵抗俿数特性

摘要

This paper describes the effect of shape parameters of perforated plates on the flow resistance of the perforated plate used as a vent plate or the cover in electronic equipments. In this study, we focused on the effect of hole shape and opening state of outer edge as the shape parameters of perforated plate. The study was focused on natural air cooled electronic equipments. In this study, in order to demonstrate the effect of hole shape as accessible value for design engineers, the design of experiment (DoE) method was used to design the experimental sample perforated plates. The effect of outer edge was evaluated by comparing the flow resistance of perforated plates with hole on outer edge and the perforated plates without hole on outer edge. In addition, to present the flow resistance data as thermal design information, the flow resistance data obtained in this study was arranged by empirical formula.%電子機器の開発においては，熱設計をいかに適切にrn行うかが機器の性能や信頼性，安全性を保証するためrnの重要な要素となっている．さらに，新製品開発効率rnの向上のためには開発の初期段階での品質の作り込みrnが必須となっている．