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  • 學位論文

液晶顯示器塑膠門蓋夾型卡扣之設計與夾持力分析

Design and Holding Force Analysis of Finger Grips for Plastic Door Cover of Liquid-Crystal Module

指導教授 : 陳政順
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摘要


轉軸式門蓋常運用於液晶顯示器,需結合塑膠薄殼件、塑膠加強肋及卡扣結合的整合設計,其最為要的崁合部夾型卡扣即為卡扣的一種。本研究目的即探討與分析此種塑膠門蓋結合結構,尤其是夾型卡扣之力學行為,與夾持力分析。並結合商用有限元素分析軟體探討門蓋接合結構設計重要參數如材質、夾型卡扣厚度、夾型卡扣退出寬度、夾型卡扣長度對於夾持能力的影響,尋求使門蓋接合結構與門軸組合後夾持能力可達最佳的結構。在本研究個案,初步結果顯示即材質使用PC/ABS,夾型卡扣厚度4 mm,夾型卡扣長度9 mm,夾型卡扣退出寬度2.8 mm最佳,門蓋可達到58.26 N之夾持力,符合設計規範20 N,且其應力小於材料降伏強度。

並列摘要


The Finger-Grips for Door-Covers often used in the Liquid-Crystal display, must integrate the technology of “plastic injection shell parts with Reinforced Ribs” and “Snap-fit joints”. The purpose of this study is to investigate the holding force of this kind of joints structure. The Combination of commercial finite element analysis software is used to perform the stress and force analysis and the Taguchi Method is used to search the effects of design parameters like materials, thickness, width of Finger-Grips, length of Finger-Grips on the holding force of the whole joints. Preliminary results obtained from this case study show that the best choose of the design parameters for the holding force of 58.26 N are materials of PC/ABS, thickness of 3 mm, length of 9 mm,width of 2.8 mm .

參考文獻


[16] 鄭旭成,塑膠外殼卡扣接合結構之結合力分析與最佳化設計,碩士論文,國立台北科技大學機電整合研究所,台北,2008。
[18] 阮翔瑜,精密齒型衝剪加工之製程參數研究,碩士論文,國立台北科技大學製造科技研究所,台北,2008。
[1] Paul R. Bonenberger, "First Snap-Fit Handbook - Creating Attachments for Plastic Parts, " Hanser Publishers,Munich,2000。
[3] Charles A. Harper, "Handbook of plastic processes, " John Wiley & Sons Inc, 2006
[5] Robert A. Malloy, "Plastic part design for injection molding: an introduction, " 1994。

被引用紀錄


簡晨宇(2014)。BMS液晶顯示器導入C型樑結構設計暨模擬推力與落下實驗分析〔碩士論文,國立臺北科技大學〕。華藝線上圖書館。https://doi.org/10.6841/NTUT.2014.00401

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